CN102288190B

CN102288190B - Route guiding device

Info

Publication number: CN102288190B
Application number: CN 201110124415
Authority: CN
Inventors: 堀畑智; 泽田清彦
Original assignee: Denso Corp
Current assignee: Denso Corp
Priority date: 2010-05-13
Filing date: 2011-05-13
Publication date: 2013-11-06
Anticipated expiration: 2031-05-13
Also published as: CN102288190A

Abstract

A route guiding device comprises a position information acquiring unit (20) used for acquiring position information of a vehicle, a map information acquiring unit (10) used for acquiring map information including intersection information and road information, a route setting unit (10) used for setting a guide route from a starting place to a destination, a route guiding unit (10) for road guiding, a departure detection unit (10) used for detecting a condition that the vehicle has departed from the guiding route; and a road departure information storage unit (60) used for storing road departure information associated with the intersection information related to an intersection from where the vehicle departs from the guiding route. The road departure information consists of entered road information and departed road information. With regard to a departed road indicated by the road departure information or departed roads related to intersections or roads similar to the intersection or the road indicated by the road departure information, the route setting unit sets the guiding route based more on a priority detected before departure by the departure detection unit than on a priority acquired during adoption as the guiding route.

Description

Path guiding device

Technical field

The present invention relates to a kind of path guiding device, carry out Route guiding from origin to destination.

Background technology

In the past, as an example of path guiding device, disclosed guider in Japanese kokai publication hei 11-316128 communique was arranged.

When this guider breaks away from from path of navigation at vehicle, compare the chocking-up degree of path of navigation direction and the chocking-up degree of the actual direction of advancing of vehicle.Then based on this comparative result, in the situation that the chocking-up degree of the actual direction ratio path of navigation direction of advancing of vehicle is little, upgrade the obstruction avoidance index that the tendency of stopping up is avoided in expression.On the other hand, when both were equal, perhaps the chocking-up degree of the actual direction of advancing of vehicle than in the large situation of the chocking-up degree of path of navigation direction, was upgraded the avoidance index of the avoidance tendency of expression path of navigation.

Then, guider proceeds to the route search of destination with the avoidance index of this obstruction avoidance index and path of navigation.At first, do not use and stop up the avoidance index of avoiding index and path of navigation, retrieve the path of navigation of destination and set path of navigation.Then, congestion degree is obtained in the point of the right-hand bend in the path of navigation of this setting, left-hand bend point, craspedodrome place, be extracted in place that the front and back congestion degree in these places changes and the congestion degree of the road section (link) that is connected with these places.Then, for each place, the congestion degree based on the congestion degree of the avoidance index of stop up avoiding index and path of navigation, path direction and the direction that breaks away from from the path determines whether this place is adopted as the path.

As mentioned above, in disclosed guider, when retrieval arrives the path of destination, can reflect the routing tendency of the driver when vehicle breaks away from from path of navigation in Unexamined Patent 11-316128 communique.

But, in the point of crossing, because road is different with the Road forms such as shape of the road that connects from the point of crossing for the connection status of point of crossing, have the place that is difficult to distinguish with the corresponding road of path of navigation.In such point of crossing, do not depend on the congestion degree of the road that is connected with the point of crossing and driver's routing tendency, and the situation that vehicle departs from from path of navigation may occur.

Summary of the invention

The present invention is in view of such problem, and its purpose is, a kind of path guiding device is provided, and can set the suitable path of navigation that is difficult for disengaging.

According to an embodiment disclosed by the invention, a kind of path guiding device is provided, set path of navigation from origin to destination, and this path of navigation is guided, it has: positional information obtains the unit, is arranged at vehicle, obtains the positional information relevant to the position of this vehicle; Cartographic information is obtained the unit, is arranged at vehicle, obtains cartographic information, and this cartographic information comprises the point of crossing information relevant to each point of crossing road information relevant with the road that is connected with each point of crossing; The path setting unit is arranged at vehicle, and map-based information is set path of navigation from origin to destination; The Route guiding unit is arranged at above-mentioned vehicle, based on path of navigation and positional information, carries out Route guiding from origin to destination; Break away from detecting unit, be arranged at above-mentioned vehicle, when above-mentioned Route guiding unit guides the path, based on path of navigation and positional information, detect above-mentioned vehicle and break away from this situation from above-mentioned path of navigation; And break away from the road information storage unit, and storage breaks away from road information, and it is related that this disengaging road information and point of crossing information have been set up, and this point of crossing information is the relevant information in the point of crossing when above-mentioned vehicle being detected and broken away from from path of navigation.Break away from road information by entering road information and the information structure that leaves the road.Enter road information and mean the information that enters road, when vehicle is entered the point of crossing that detects when breaking away from, the road information relevant to the road that travelled till the point of crossing be defined as the road that enters for this point of crossing.The information of leaving the road means the information that leaves the road, when the point of crossing when vehicle is broken away from from detecting is left, to light the relevant road information of the road that continues to travel and be defined as leaving the road for this point of crossing from intersecting.Above-mentioned path setting unit for shown in above-mentioned disengaging road information leave the road or with the point of crossing shown in above-mentioned disengaging road information and the similar point of crossing of road and road in leave the road, make the relative importance value when being adopted as path of navigation set path of navigation than the lowland detected before disengaging more by above-mentioned disengaging detecting unit.

In fact the point of crossing that breaks away from and entering road and leaving the road and can regard the path that also easily breaks away from when next time travelling (point of crossing, enter road, leave the road) as have at this moment occured from path of navigation in vehicle.In addition, with such point of crossing and at this moment enter road and leave the road same point of crossing and road (enter road and leave the road) can be regarded the path (point of crossing, enter road, leave the road) of easy disengaging as.That is in other words, for such path, in path of navigation, be difficult to distinguish, that (namely easily leak and misunderstand) is to turn right or the point of crossing of the guiding of turning left.So as mentioned above, pre-stored and vehicle reality are from point of crossing that path of navigation has broken away from and at this moment the disengaging road information that enters road and leave the road relevant.And, when setting path of navigation, for leaving the road in the path of easy disengaging (point of crossing, enter road, leave the road), make relative importance value ratio when being adopted as path of navigation the lowland be detected before disengaging more and set path of navigation, comprise path as described above in path of navigation thereby can be suppressed at, can set the suitable path of navigation that is difficult for disengaging.

Description of drawings

Record and narrate in detail with reference to the accompanying drawings, thereby make above-mentioned purpose of the present invention and other purposes, feature and advantage clearer and more definite.

Fig. 1 means the block diagram of the schematic configuration of the vehicle navigation apparatus 100 in embodiments of the present invention.

Fig. 2 means the process flow diagram of stores processor of the disengaging road information of the vehicle navigation apparatus 100 in embodiments of the present invention.

Fig. 3 means the process flow diagram that the setting of the path of navigation of the vehicle navigation apparatus 100 in embodiments of the present invention is processed.

Fig. 4 represents the figure of the relation between the driving path of the path of navigation of vehicle from the example that path of navigation breaks away from and reality with highway section and node.

Fig. 5 means the block diagram of the schematic configuration of the path guiding device in variation 1.

Fig. 6 means the process flow diagram of transmission processing of the disengaging road information of the vehicle navigation apparatus 100 in variation 1.

Fig. 7 means the process flow diagram of login process of the disengaging road information at the center (center) 200 in variation 1.

Fig. 8 means the process flow diagram that the setting of the path of navigation of the vehicle navigation apparatus 100 in variation 1 is processed.

Fig. 9 means the process flow diagram of transmission processing of the disengaging road information at the center 200 in variation 1.

Figure 10 means the process flow diagram of transmission processing of the disengaging road information of the vehicle navigation apparatus 100 in variation 2.

Figure 11 means the process flow diagram that enters highway section confirmation processing of the vehicle navigation apparatus 100 in variation 2.

Figure 12 means the process flow diagram that the node confirmation of the vehicle navigation apparatus 100 in variation 2 is processed.

Figure 13 means the process flow diagram that leaves highway section confirmation processing of the vehicle navigation apparatus 100 in variation 2.

Figure 14 means the process flow diagram that the outside essential factor confirmation of the vehicle navigation apparatus 100 in variation 2 is processed.

Embodiment

Below, the path guiding device of embodiments of the present invention is described based on Fig. 1～Fig. 4.

Vehicle navigation apparatus in present embodiment (path guiding device) 100 carries on vehicle, sets path of navigation from origin to destination, and carries out from origin to destination Route guiding according to this path of navigation.This vehicle navigation apparatus 100 possesses position detector 20, map datum input unit 30, communicator 40, operating switch group 50, memory storage 60, display device 70, voice output 80, audio recorders 90 and the control device 10 that is connected with them etc. as shown in Figure 1.

This control device 10 consists of as known robot calculator, the bus that possesses CPU, ROM, RAM, I/0 in inside and be connected with these structures.This control device 10 for example possesses following function: set from origin to destination path of navigation (path setting unit) based on the cartographic information of obtaining from map datum input unit 30, based on path of navigation with detect vehicle from the positional information that position detector 20 is obtained and break away from this situation (disengaging detecting unit) from path of navigation, the information with vehicle when path of navigation breaks away from breaks away from road information and is stored in memory storage 60 grades and (breaks away from the road information storage unit).In addition, among the performed processing of control device 10, will describe in detail in the back about characteristic of the present invention.

Position detector 20 detects the position of vehicle, and the positional information relevant to its position outputed to control device 10, geomagnetic sensor 21, gyroscope 22 with periphery, vehicle speed sensor 23, and based on detect GPS (Global Positioning System) the GPS receiver 24 used of vehicle location from the electric wave of satellite.Because these

sensors

21,22,23,24 have respectively the error of different in kind, use so constitute by a plurality of sensors, they to be revised on one side separately on one side.In addition, according to the difference of precision, also can consist of with an above-mentioned part, can also use the rotation sensor that turns to (steering), the vehicle sensors of each rotor wheel etc.That is, control device 10 is obtained the positional information (positional information obtain unit) relevant to the position of vehicle from this position detector 20.

Map datum input part 30 is for various data being input to the device of control device 10, and these various data comprise: be used for improving the so-called map match of precision of position probing with data, map datum (cartographic information) and mark data (mark information).In addition, as map datum, comprise: comprise the data relevant to the point of crossing (point of crossing information or the node data relevant with the point of crossing in other words) of the information (such as node ID) of identifying the point of crossing etc., with the data relevant to road (information or the highway section data of being correlated with road in other words) that comprise the information (such as road section ID) of identify road etc.As medium, can use CD-ROM, DVD-ROM, storage card, hard disk drive etc., without particular limitation of.That is, control device 10 is obtained various data (cartographic information is obtained the unit) from this map datum input part 6.In other words, control device 10 is obtained map datum from this map datum input part 6, and this map datum comprises the road information (cartographic information is obtained the unit) that the point of crossing information relevant to each point of crossing is relevant with the road that is connected with each point of crossing.

In addition, node data is that the identiflication number by node is that the identiflication number of image of road section ID, node species (kinds such as point of crossing, place, interflow), the expression node in the coordinate of node ID, node, whole highway sections of being connected with node is the data that the characteristic information of the node of the information that has or not of the traffic lights of image I D, expression point of crossing etc. consists of.Further, the information that also comprises the angle between the expression node highway section that connects.

The highway section data by the identiflication number in highway section be each node of connecting of road section ID, road section length, starting point and terminal point the road category such as node ID, super expressway, toll road, Ordinary Rd, city/countryside road, intermountain section road, road width, number of track-lines, link travel time, statutory restrictions speed, road the gradient and consist of with each data such as path cost (cost) of the distance of travelling on this road, time correlation.

communicator 40 receives from VICS (Vehicle Information and Communication System: VehicleInformation and Communication Systems, registered trademark) restricted information of the block information of the distribution such as center and detection (probe) distribution of information center (comprising information that represents congestion degree etc.) and traveling lane, from the information of the vehicle number of the expression traveling lane of detection information Distribution Center distribution (information that for example represents in the stipulated time quantity of the vehicle by the point of crossing), the information of expression traverses rows number (for example representing to cross in the stipulated time pedestrian's of point of crossing the information of quantity), and the information that has or not of traffic lights of expression point of crossing etc.In addition, the information that has or not of the traffic lights of the information of the information of this expression vehicle number, expression traverses rows number, expression point of crossing also can be according to being calculated by the captured image of the vehicle-mounted vidicon that is equipped on vehicle.Control device 10 obtains from this communicator 40 information (outside situation obtains the unit) that the traffic lights of information, the expression point of crossing of information, the expression traverses rows number of information, the expression vehicle number of expression congestion degree has or not.In addition, the traffic lights of congestion degree, vehicle number, traverses rows number, point of crossing has or not the outside situation also referred to as vehicle.In addition, the information that has or not of traffic lights of expression point of crossing also can obtain from map datum input part 30.

Operating switch group 50 can adopt such as described later and display device 70 one and consists of and be arranged at the soft-touch control in display frame and be arranged at the hard switching (hard switch) etc. of the press type around the display frame of display device 70, for various inputs.For example, by user's operation, will comprise the departure place positional information etc. departure place information and comprise the positional information etc. of destination the various information such as destination information, and with from the departure place (such as current location) set up corresponding operation signal to performed function such as the guider 100 of the search indication of the path of navigation (recommendation paths) of destination etc. and be input to control device 10.In addition, control device 10 is obtained the information (indoor conditions obtains the unit) of expression operating switch group 50 operating conditions by obtaining operation signal from this operating switch group 50.That is, control device 10 is by obtaining operation signal from this operating switch group 50, the operating conditions of decision operation switch group 50.

Memory storage 60 is used for coming as required the pre-stored data of processing etc. in control device 10, such as storing the disengaging road information that illustrates later etc.In addition, this memory storage 60 can consist of with non-volatile storage medium of for example read-write data.

Display device 70 can adopt such as color liquid crystal display arrangement that is arranged at panel board etc. etc.The marking of cars of the current location of the expression vehicle that the picture of this display device 70 can overlapping demonstration be detected by position detector 20, the map datum of obtaining from map datum input unit 30 and map show induces the additional datas such as path.

Voice output 80 is such as the loudspeaker that is arranged at the indoor sound that is used for output audio device, televisor etc. of car.Audio recorders 90 is recorded to the passenger's of vehicle talk by being arranged at the indoor microphone of car.For example, can adopt the audio recorders of drive recorder (DriveRecorder) etc. that is arranged at as the voice recognition device of input media and is used for understanding fully the thievery of traffic hazard, vehicle and parts thereof etc.Control device 10 is obtained the information of the voice output situation in the expression vehicle chamber from this voice output 80, and obtains the information (indoor conditions obtains the unit) of the talk situation in the expression vehicle chamber from audio recorders 90.In addition, voice output situation, talk situation, and above-mentioned operating switch group's 50 operating conditions also referred to as the indoor conditions of vehicle.

In the vehicle navigation apparatus 100 that consists of like this, if utilize the operation signals such as indication of operating switch group 50 input expression destination informations, route searching by user's operation, control device 10 utilizes the data that obtain from map datum input unit 30, automatically select from the departure place (for example current location) to the optimal path of its destination (for example, can be with shortest time path from origin to destination etc.), thus search (setting) path of navigation (recommendation paths).Then, the position of the vehicle that control device 10 calculates according to the path of navigation (recommendation paths) that searches and according to the positional information that obtains from position detector 20 and the data that obtain from map datum input unit 30, the map that decision shows towards, with the marking of cars, map datum, induce path etc. additional data is overlapping and be presented on display device 70.In addition, as the method for such automatic setting optimal path, can adopt the methods such as enlightening Coase thorough (Dijkstra) algorithm.Further, the vehicle navigation apparatus 100 of present embodiment considers to break away from road information when setting path of navigation.This is characteristic of the present invention.

At this, the processing action of the vehicle navigation apparatus 100 of present embodiment is described.

At first, based on process flow diagram shown in Figure 2, the stores processor of the disengaging road information of vehicle navigation apparatus 100 is described.In this process flow diagram shown in Figure 2, if the beginning Route guiding begins.

In step S10, detect the current location of vehicle.That is, by position detector 20, detect the current location of vehicle.And control device 10 is obtained the positional information (positional information obtain unit) relevant to the position of vehicle from position detector 20.

In step S11, compare the current location of vehicle and the path of navigation of setting.That is, whether control device 10 breaks away from from path of navigation in order to detect vehicle, and the current location of the vehicle shown in the positional information that obtains at step S10 and the path of navigation of setting are compared.

In step S12, judge whether vehicle departs from (disengaging) from path of navigation.That is, control device 10 is by the comparative result of step S11, whether on path of navigation, judges whether vehicle departs from (disengaging) from path of navigation according to the current location of vehicle.Then, enter step S13 if be judged to be to depart from from path of navigation, return to step S10 if be judged to be not depart from from path of navigation.Like this, in Route guiding, control device 10 detects vehicle and breaks away from this situation (disengaging detecting unit) from path of navigation based on the path of navigation of setting and the positional information that obtains in step S10.For example, as shown in Figure 4, path of navigation is highway section L1～node N1～highway section L5～node N3～highway section L4～node N4, and actual driving path is in the situation of highway section L1～node N1～highway section L2～node N2～highway section L3～node N3～highway section L4～node N4, if the current location of vehicle detected on highway section L2 or node N2 or highway section L3, be judged to be from path of navigation and depart from.

In step S13, the situation when obtaining vehicle and breaking away from from path of navigation (information of expression situation) is stored in such as in RAM etc.The outside situation (outside situation obtains the unit) of the vehicle when particularly, control device 10 is obtained and vehicle detected and broken away from this situation from path of navigation.Namely, as this outside situation, control device 10 is obtained from communicator 40: expression occured the information of the information of the vehicle number in the traveling lane with vehicle (this car) of the point of crossing that breaks away from relative track, opposite, the traverses rows number that leaves the road that the point of crossing from having occured to break away from the expression path of navigation is left, the congestion degree that leaves the road that the point of crossing from having occured to break away from the expression path of navigation is left information, the generation the expression path of navigation information (outside situation obtains the unit) that has or not of the traffic lights of point of crossing of disengaging.In addition, control device 10 is obtained the vehicle speed signal (vehicle speed signal obtains the unit) of the vehicle when vehicle being detected and having broken away from this situation from path of navigation from vehicle speed sensor 23.Further, control device 10 is obtained the indoor conditions (indoor conditions obtains the unit) of the vehicle when vehicle being detected and having broken away from this situation from path of navigation from operating switch group 50, voice output 80, audio recorders 90.That is, as this indoor conditions, control device 10 is obtained the operating conditions (indoor conditions obtains the unit) of the operating switch group 50 in vehicle chamber from operating switch group 50.In addition, as this indoor conditions, control device 10 is obtained voice output situation (indoor conditions obtains the unit) in vehicle chamber from voice output 80.In addition, as this indoor conditions, control device 10 is obtained talk situation (indoor conditions obtains the unit) in vehicle chamber from audio recorders 90.

In addition, the point of crossing information relevant to point of crossing when control device will detect vehicle and break away from this situation from path of navigation, road information that the road that travelled when entering the point of crossing when vehicle being detected and having broken away from this situation from path of navigation is relevant, the road information relevant with the road that travelled when the point of crossing is left when vehicle being detected and having broken away from this situation from path of navigation, pre-stored such as in RAM etc.These information are for the disengaging road information that illustrates later.

In addition, the vehicle navigation apparatus 100 of present embodiment for shown in this disengaging road information leave the road or the point of crossing identical with the point of crossing shown in this disengaging road information and road and road in leave the road, make relative importance value ratio when being adopted as path of navigation the lowland be detected before disengaging more and set path of navigation (path setting unit), this will be described in detail in the back.

In step S14, control device 10 determines whether that storage (login) breaks away from road information.That is, when above-mentioned vehicle being detected and having broken away from this situation from path of navigation, determine whether the point of crossing information and the road information that are stored in RAM etc. are stored (login) as breaking away from road information.This judgement is based on that the situation that obtains in step S13 judges.Therefore, the situation that obtains in step S13 is be used to determining whether, this point of crossing information and road information to be stored the information of (login) as the disengaging road information.

Vehicle reality entering road and leaving the road and to regard the path that also easily breaks away from when next time travelling (point of crossing, enter road, leave the road) as from point of crossing that path of navigation breaks away from and at this moment.In addition, with such point of crossing and at this moment enter road and leave the road identical point of crossing and road (enter road and leave the road) can be regarded the path (point of crossing, enter road, leave the road) of easy disengaging as.That is, in other words, for such path, in path of navigation, be difficult to distinguish the point of crossing (that is, easy leakage is misunderstood and seen) of the guiding of turning right or turning left.

But whether vehicle breaks away from from path of navigation, and the indoor conditions of the outside situation of vehicle that can be when breaking away from, the speed of a motor vehicle when breaking away from, the vehicle when breaking away from is learnt.That is, even same point of crossing, enter road, leave the road, because these situations are different, situation about breaking away from from path of navigation is arranged, situation about not breaking away from is also arranged.

At this, in the present embodiment, based on the situation that obtains, determine whether that storage (login) breaks away from road information in step S13.then, in step S15, if be judged to be storage in step S14, the relevant road information of the road that will travel when control device 10 will enter the point of crossing that disengaging detected to vehicle is as the enter road information that enter road of expression with respect to the point of crossing, and, road information that will be relevant to the road that vehicle travelled when the point of crossing that disengaging detected is left is as the leave the road information that leaves the road of expression with respect to the point of crossing, will the point of crossing information relevant to the point of crossing that vehicle breaks away from having set up related disengaging road information is stored in memory storage 60 grades.

That is, the vehicle navigation apparatus 100 of present embodiment is take the satisfied situation of stipulating of outside situation as condition, and storage breaks away from road information.Perhaps, do not reach setting as condition take vehicle speed signal, storage breaks away from road information.Perhaps, take the satisfied situation of stipulating of car indoor conditions as condition, storage breaks away from road information.

Processing when explanation breaks away from road information to above-mentioned each situation storage.

At first, when adopting vehicle number, do not reach setting take the vehicle number with the track, opposite of the traveling lane of the vehicle (this car) at the place, point of crossing that has occured to break away from and break away from road information as the condition storage.For example, in the time of will turning right in the point of crossing according to path of navigation, in the more situation of the vehicle number in track, opposite, the driver does not like spending long-time (not liking the stand-by period) on turning right, perhaps be not easy to turn right, so there is the possibility of selecting from the path that path of navigation breaks away from.That is, can think that the driver selects the path that breaks away from from path of navigation wittingly.

On the other hand, when the vehicle number in track, opposite is not so much, even do not spend long-time on turning right or easily turned right, also exist the driver to select from the possibility in the path that path of navigation breaks away from.In this case, can think that the driver is leaked to see the guided crossover point point of crossing of the guiding of turning left (turn right or), by mistake select the path that breaks away from from path of navigation.The possibility that breaks away from from path of navigation when therefore, travel in (point of crossing, enter road, leave the road) or same path in this path after can regarding as next time is also higher.

Therefore, by such setting, the relative importance value in the path that the possibility that breaks away from by reduction is higher (point of crossing, enter road, leave the road), namely be difficult to distinguish the relative importance value that leaves the road at place, point of crossing of this situation of point of crossing of the guiding of turning right or turning left in path of navigation, can set more suitably path of navigation.

Then, adopt in the situation of traverses rows number, take the generation from path of navigation the traverses rows number that leaves the road left of the point of crossing that breaks away from not reach setting be that the condition storage breaks away from road information.Like this, as the outside situation of vehicle, can adopt the traverses rows number that leaves the road in the path of navigation when breaking away from.For example, want according to path of navigation when point of crossing right-hand bend or left-hand bend, in the situation that the traverses rows number that leaves the road is more, because the driver does not like spending long-time (not liking the stand-by period) in right-hand bend or on turning left, perhaps be not easy to turn right or turn left, so there is the possibility of selecting from the path that path of navigation breaks away from.That is, can think that the driver selects the path that breaks away from from path of navigation wittingly.

On the other hand, in the situation that the traverses rows number that leaves the road is not so much, even the driver did not spend for a long time in right-hand bend or on turning left or easily turned right or turn left, also exist selection from the possibility in the path that path of navigation breaks away from.In this case, can think that the driver is leaked to see the guided crossover point, by mistake select the path that breaks away from from path of navigation.Therefore, can think, the possibility that breaks away from from path of navigation when travel in (point of crossing, enter road, leave the road) or same path in this path after next time is also higher.

Therefore, by such setting, the relative importance value in the path that the possibility that breaks away from by reduction is higher (point of crossing, enter road, leave the road), namely be difficult for distinguishing the relative importance value that leaves the road at place, point of crossing of this situation of point of crossing of the guiding of turning right or turning left in path of navigation, thereby can set more suitably path of navigation.

Then, in the situation that adopt congestion degree, the congestion degree that leaves the road that the point of crossing from having occured to break away from path of navigation is left does not arrive setting and is condition storage disengaging road information.For example, want according to path of navigation to turn right in the point of crossing or when turning left, leaving the road when stopping up, exist the driver not like stopping up and select from the possibility in the path that path of navigation breaks away from.That is, can think that the driver selects the path that breaks away from from path of navigation wittingly.

On the other hand, in the situation about very not stopping up that leaves the road, even not stopping up the driver, existence do not select from the possibility in the path that path of navigation breaks away from yet.In this case, can think that the driver is leaked to see the guided crossover point, by mistake select the path that breaks away from from path of navigation.Therefore, can regard as, the possibility that breaks away from from path of navigation when travel in (point of crossing, enter road, leave the road) or same path in this path after next time is also higher.

Then, adopt in the situation that traffic lights has or not, take the generation in path of navigation to have traffic lights be that the condition storage breaks away from road information the point of crossing that breaks away from.For example, in path of navigation, when at the guided crossover point place of the guiding of turning right or turning left, disengaging having occured, in the situation that the guided crossover point does not have traffic lights, can think the not to be noted path that breaks away from from path of navigation, point of crossing and selecting of driver.Therefore, next time after, when travel in (point of crossing, enter road, leave the road) or same path in this path, if having traffic lights at the guided crossover point, have the possibility that does not break away from from path of navigation.

On the other hand, in the situation that there is traffic lights in the guided crossover point, can think do not know it is the guided crossover point although the driver recognizes the point of crossing, thereby select from the path of path of navigation disengaging.Therefore, can think, next time after, when travelled in (point of crossing, enter road, leave the road) or same path in this path, even have traffic lights at the guided crossover point, the possibility that breaks away from from path of navigation was also higher.

Therefore, by such setting, the relative importance value in the path that the possibility that breaks away from by reduction is higher (point of crossing, enter road, leave the road), namely be difficult for distinguishing the relative importance value that leaves the road at place, point of crossing of this situation of point of crossing of the guiding of turning right or turning left in path of navigation, can set more suitably path of navigation.

Then, adopt in the situation of the speed of a motor vehicle of vehicle, when vehicle being detected and broken away from this situation from path of navigation, do not reach setting take the vehicle speed signal of vehicle and break away from road information as the condition storage.For example, in path of navigation, when disengaging has occured in the guided crossover point place of the guiding of turning right or turning left, in the situation that vehicle travels with speed faster, can expect, although the driver notices the guided crossover point, because travel speed is very fast, thereby select from the path of path of navigation disengaging.Therefore, next time after, when travel in (point of crossing, enter road, leave the road) or same path in this path, if travel speed is so not fast, have the possibility that does not break away from from path of navigation.

On the other hand, when vehicle travels with so not fast speed, can expect, the driver do not know because for example point of crossing is more complicated which this leave the road to and advances, thereby selects the path that breaks away from from path of navigation.Therefore, can think, next time after, when travelled in (point of crossing, enter road, leave the road) or same path in this path, the possibility that breaks away from from path of navigation was also higher.

Then, adopt in the situation of talk situation, when vehicle being detected and broken away from this situation from path of navigation, be not in talk for condition storage disengaging road information take the driver of vehicle.For example, when breaking away from from path of navigation, the driver be in the situation that in talk, can expect, selects because the driver is immersed in the path that breaks away from from path of navigation in talk.Therefore, next time after, when travel in (point of crossing, enter road, leave the road) or same path in this path, if the driver does not talk, just have the possibility that does not break away from from path of navigation.

On the other hand, when breaking away from from path of navigation, the driver is not in the situation that in talk, can expect, the driver is leaked and seen the guided crossover point, and selects the path that breaks away from from path of navigation.Therefore, can think, next time after, when travelled in (point of crossing, enter road, leave the road) or same path in this path, the possibility that breaks away from from path of navigation was also higher.

Then, adopt in the situation of voice output situation, when vehicle being detected and broken away from this situation from path of navigation, do not have voice output to break away from road information as the condition storage take indoor.For example, when breaking away from from path of navigation, can consider, in the situation that the driver listens to the music, the driver is owing to being immersed in the path of selecting in music from the path of navigation disengaging.Therefore, next time after, when travel in (point of crossing, enter road, leave the road) or same path in this path, if the driver is not listening to the music, have the possibility that does not break away from from path of navigation.

On the other hand, when breaking away from from path of navigation, in the situation that the driver is not listening to the music, can expect, the driver is leaked the path of seeing guided crossover point and selecting to break away from from path of navigation.Therefore, can think, next time after, when travelled in (point of crossing, enter road, leave the road) or same path in this path, the possibility that breaks away from from path of navigation was also higher.

Then, adopt in the situation of operating conditions, when vehicle being detected and having broken away from this situation from path of navigation, be not in operation for condition storage disengaging road information take operating switch group 50.For example, when breaking away from from path of navigation, in the situation that driver's operating operation parts can expect, select the path that breaks away from from path of navigation due to driver's operating operation switch group 50.Therefore, next time after, when travel in (point of crossing, enter road, leave the road) or same path in this path, if not at operating operation switch group 50, there is the possibility that does not break away from from path of navigation in the driver.

On the other hand, when breaking away from from path of navigation, the driver in the situation of operating operation switch group 50, can not expect, the driver is leaked and seen guided crossover point and select from the path of path of navigation disengaging.Therefore, can think, next time after, when travelled in (point of crossing, enter road, leave the road) or same path in this path, the possibility that breaks away from from path of navigation was also higher.

Then, based on process flow diagram shown in Figure 3, illustrate that the setting of the path of navigation of vehicle navigation apparatus 100 is processed.The process flow diagram that this is shown in Figure 3 when having inputted the destination, or begins when having inputted departure place and destination.

In step S20, control device 10 is obtained map datum (cartographic information is obtained the unit) from map datum input unit 30, based on this map datum of obtaining, and search (setting) path of navigation (path setting unit) from origin to destination.

In step S21, whether exist in the path of navigation that control device 10 retrieval is set in step S20 with memory storage 60 in the point of crossing of disengaging road information of storage and same or same point of crossing and the road of road.In addition, should refer to by same point of crossing and road with breaking away from road information, the linking-up road number of point of crossing (in other words being fork number or link road hop count) is identical, with the difference of angle between road that the point of crossing is connected (with the angle between highway section that node is connected) within the limits prescribed, identical to the number of track-lines that enters road of point of crossing.

In step S22, based on the result for retrieval in step S21, judge whether exist in the path of navigation set in step S20 with memory storage 60 in the point of crossing of disengaging road information of storage and same or same point of crossing and the road of road.Then, be judged to be and enter step S24 in situation about not having, enter step S23 in situation about being judged to be.

In step S23, control device 10 makes the relative importance value ratio when being adopted as path of navigation the front also lowland setting of disengaging path of navigation (path setting unit) be detected for leaving the road shown in the disengaging road information that extracts in the retrieval of step S21.Namely, for shown in the disengaging road information of storage in memory storage 60 leave the road or with breaking away from the point of crossing shown in road information and road leaving the road in same point of crossing and road, make relative importance value ratio when being adopted as path of navigation the lowland be detected before disengaging more and set path of navigation (path setting unit).

Then, in step S24, the path of navigation that will set in step S20 or step S23 determines as being actually used in the path of navigation (path setting unit) of Route guiding.That is, in the situation that be judged to be "No" in step S22, the path of navigation that will set in step S20 determines as being actually used in the path of navigation of Route guiding.On the other hand, in the situation that be judged to be "Yes" in step S22, the path of navigation that will set in step S23 determines as being actually used in the path of navigation of Route guiding.

If control device 10 decides path of navigation like this, based on the path of navigation of setting and the positional information of vehicle, carry out Route guiding (Route guiding unit) from origin to destination.

Like this, pre-stored and vehicle reality are from point of crossing that path of navigation breaks away from and the disengaging road information that enters road and leave the road relevant at this moment.Then, when setting path of navigation, for leaving the road in the path of easy disengaging (point of crossing, enter road, leave the road), make relative importance value ratio when being adopted as path of navigation the lowland be detected before disengaging more and set path of navigation, thereby can suppress to comprise in path of navigation path as described above, can set the suitable path of navigation that is difficult for disengaging.

in addition, as the situation that is used for determining whether the above-mentioned disengaging road information of storage, at least one of storing in following just can be reached purpose of the present invention, that is: the vehicle number in opposite track of traveling lane of the vehicle (this car) at the place, point of crossing that breaks away from occured, the traverses rows number that leaves the road that the point of crossing from having occured to break away from path of navigation is left, the congestion degree that leaves the road that the point of crossing from having occured to break away from path of navigation is left, generation in path of navigation the traffic lights of the point of crossing that breaks away from have or not, the travel speed of vehicle (speed of a motor vehicle), talk situation in vehicle chamber, voice output situation in vehicle chamber, operating switch group 50 operating conditions.

Therefore, do not adopt in the situation that above-mentioned vehicle number, traverses rows number, congestion degree, traffic lights have or not, do not need to arrange communicator 40, perhaps do not need control device 10 to obtain the information of these situations of expression to be used for determining whether that storage breaks away from condition of road surface.Similarly, do not adopt in the situation of travel speed (speed of a motor vehicle) of vehicle, control device 10 does not need to obtain be used to determining whether that storage breaks away from the vehicle speed signal of condition of road surface.Equally, in the situation of the talk situation in not adopting in vehicle chamber, audio recorders 90 need to be set in vehicle navigation apparatus 100, perhaps not need control device 10 to obtain the information of expression talk situation to be used for determining whether that storage breaks away from condition of road surface.Equally, in the situation of the voice output situation in not adopting in vehicle chamber, voice output 80 need to be set in vehicle navigation apparatus 100, not need control device 10 to obtain the information of expression voice output situation to be used for determining whether that storage breaks away from condition of road surface yet.Equally, do not adopt in operating switch group 50 the situation of operating conditions, control device 10 does not need to obtain the information of expression operating conditions to be used for determining whether that storage breaks away from condition of road surface.

In addition, possesses the driver that obtains vehicle in the situation that the function of the driving trend (driving trend obtains the unit) at place, point of crossing at control device 10, the trend that control device 10 also can represent take the driving trend that obtains not break away from the point of crossing will break away from road information and be stored in (disengaging road information storage unit) in memory storage 60 grades as condition.

In addition, in the situation that control device 10 possesses the function (urgency judging unit) of the urgency whether driver of judgement expression vehicle worry, control device 10 can not reach setting as condition take the driver's that obtains urgency yet, will break away from road information and be stored in memory storage 60 grades and (break away from the road information storage unit).In addition, with respect to the arrival predicted time to the destination, can judge this urgency according to current location distance to destination and the current time at this moment from vehicle in Route guiding.

In addition, as being used for determining whether, point of crossing information and road information are stored the information (the outside situation of vehicle) of (login) as the disengaging road information, apart from the above, also can adopt the restricted information of traveling lane etc.

Adopt in the situation of this restricted information, the restricted information that leaves the road that leaves with the point of crossing from having occured to break away from path of navigation does not exist for condition storage disengaging road information.For example, want according to path of navigation to be traveling restriction in the situation that leave the road when point of crossing right-hand bend or left-hand bend, exist the driver not like travelling and limit and select from the possibility in the path that path of navigation breaks away from.That is, can expect, the person of sailing selects wittingly from the path of path of navigation disengaging.

On the other hand, in the situation that the restriction of not travelling even traveling lane is not limited, also exists the driver to select from the possibility in the path that path of navigation breaks away from.In this case, can expect, the driver is leaked and is seen the guided crossover point, by mistake selects from the path of the disengaging of path of navigation.Therefore, can think, next time after, during the travelling of (point of crossing, enter road, leave the road) or same path, the possibility that breaks away from from path of navigation is also higher in this path.

Therefore, by such setting, the relative importance value in the path that the possibility that breaks away from by reduction is higher (point of crossing, enter road, leave the road), namely be difficult for distinguishing the relative importance value that leaves the road at place, point of crossing of this situation of the guiding of turning right or turning left in path of navigation, also can set more suitably path of navigation.

In addition, as being used for determining whether, point of crossing information and road information are stored the information (the outside Fu Condition of vehicle) of (login) as the disengaging road information, except above-mentioned, the right-hand bend of the road that travelled in the time of also can adopting the expression vehicle to enter the point of crossing that disengaging detected or the information that has or not of left-hand bend roadway (track).In addition, right-turning traffic road (lane) or the having or not of left-hand bend roadway at this is the right-turning traffic road of the direction that leaves the road or the having or not of left-hand bend roadway of setting in path of navigation.

Adopt in the situation of the information that has or not that represents this right-hand bend or left-hand bend roadway, having right-turning traffic road or left-hand bend roadway in the road that travelled so that vehicle enters the point of crossing that disengaging detected is that the condition storage breaks away from road information.For example, in path of navigation, when disengaging has occured in the guided crossover point place of the guiding of turning right or turning left, do not have in the road that travelled when vehicle enters the point of crossing in the situation of right-turning traffic road or left-hand bend roadway, can expect, the driver is the path that breaks away from from path of navigation, point of crossing and selecting not to be noted.Therefore, can think, next time after, when travel in (point of crossing, enter road, leave the road) or same path in this path, if have right-turning traffic road or left-hand bend roadway at the guided crossover point, there is the possibility that does not break away from from path of navigation.

On the other hand, in the situation that have right-turning traffic road or left-hand bend roadway, can expect do not know it is the guided crossover point although the driver recognizes the point of crossing, thereby select from the path of path of navigation disengaging.Therefore, can think, next time after, when travelled in (point of crossing, enter road, leave the road) or same path in this path, even have right-turning traffic road or left-hand bend roadway, the possibility that breaks away from from path of navigation was also higher.

By such setting, the relative importance value in the path that the possibility that breaks away from by reduction is higher (point of crossing, enter road, leave the road), namely be difficult for distinguishing the relative importance value that leaves the road at place, point of crossing of this situation of the guiding of turning right or turning left in path of navigation, can set more suitably path of navigation.

In addition, as being used for determining whether, point of crossing information and road information are stored the information (the outside situation of vehicle) of (login) as the disengaging road information, apart from the above, also can adopt the information of the number of track-lines that leaves the road that represents that the point of crossing from having occured to break away from path of navigation is left.In the situation that adopt the information of this number of track-lines that leaves the road of expression, not that (for example more than 2 tracks, number of track-lines n 〉=2) is condition storage disengaging road information more than setting with the number of track-lines that leaves the road that leaves from the point of crossing that has occured to break away from path of navigation.

For example, want according to path of navigation when point of crossing right-hand bend or left-hand bend, leaving the road exists in the above situation in 2 tracks, can expect, and be that guided crossover point is selected wittingly from the path of path of navigation disengaging although the driver recognizes.

On the other hand, can expect, in the situation that there is 1 track, the driver is leaked and is seen the guided crossover point, by mistake selects the path that breaks away from from path of navigation.Therefore, can think, next time after, when travelled in (point of crossing, enter road, leave the road) or same path in this path, the possibility that breaks away from from path of navigation was also higher.

Therefore, by such setting, the relative importance value in the path that the possibility that breaks away from by reduction is higher (point of crossing, enter road, leave the road), namely be difficult for distinguishing the relative importance value that leaves the road at place, point of crossing of this situation of the guiding of turning right or turning left in path of navigation, can set more suitably path of navigation.

(variation 1)

Then, based on Fig. 5～Fig. 9, path guiding device in variation 1 is described.

Path guiding device in present embodiment comprises vehicle navigation apparatus 100, is arranged at the central side device (control device 210, communicator 220, database 230) at the center 200 of outside vehicle as shown in Figure 5.This vehicle navigation apparatus 100 and central side device are the devices that can communicate.

In addition, vehicle navigation apparatus 100 and above-mentioned embodiment are similar, so difference only mainly is described.In addition, same-sign is given at the position identical with above-mentioned embodiment in the accompanying drawings and description thereof is omitted.

Vehicle navigation apparatus 100 in this variation 1 except the structure of above-mentioned embodiment, also possesses the 2nd communicator 41, the 2 communicators 41 and communicates with the communicator 220 that is arranged at center 200 as shown in Figure 5.In addition, the communicator 40 in the 1st communicator 40 and above-mentioned embodiment is equal.

On the other hand, the center 200 that can communicate with this vehicle navigation apparatus 100 possesses the control device 210, the communicator 220 that can communicate with the 2nd communicator 41 of vehicle navigation apparatus 100 that are made of server etc., stores the database 230 that breaks away from road information etc. as the central side device.

At this, the processing action of the path guiding device in variation 1 is described.

At first, based on process flow diagram shown in Figure 6, the transmission processing of the disengaging road information of the vehicle navigation apparatus 100 in variation 1 is described.In addition, the step S30 of the process flow diagram that this is shown in Figure 6～step S34 and above-mentioned process flow diagram shown in Figure 2 step S10～step S14 is roughly the same, so description thereof is omitted.

in step S35, if being judged to be in step S34, the control device 10 of vehicle navigation apparatus 100 sends, the relevant road information of the road that will travel in the time of will entering the point of crossing that disengaging detected to vehicle is as the enter road information that enter road of expression with respect to the point of crossing, in addition, road information that will be relevant to the road that vehicle travelled when the point of crossing that disengaging detected is left is as the leave the road information that leaves the road of expression with respect to the point of crossing, the intrinsic identifying information of driver of will the point of crossing information relevant to the point of crossing of vehicle derailing having set up related disengaging road information and vehicle sends to center 200 (communicator 220) (vehicle side the 1st transmitting element) from the 2nd communicator 41 together.In addition, the intrinsic identifying information of the driver of vehicle can be pre-stored in memory storage 60 grades of vehicle navigation apparatus 100.

Then, based on process flow diagram shown in Figure 7, the login process of the disengaging road information at the center 200 in variation 1 is described.

In step S40, the control device 210 at center 200 determines whether that the communicator 220 by center 200 receives the disengaging road information.Then, break away from road information (central side the 1st receiving element) and enter step S41 if be judged to be to receive, break away from the judgement of repeating step S40 of road information if be judged to be not receive.

In step S41, the disengaging road information that the control device 210 at center 200 will send from the 2nd communicator 41 of vehicle navigation apparatus 100 is set up related with identifying information and storage (login) (breaks away from the road information storage unit) database 230.That is, in the above-described embodiment, storage breaks away from road information in vehicle navigation apparatus 100, and in contrast, in variation 1, storage breaks away from road information in the database 230 at center 200.In addition, the disengaging road information that the control device 210 at this center 200 is obtained is based on the situation that obtains in the step S33 of Fig. 6 and after being judged to be transmission, the information of sending from vehicle navigation apparatus 100.Therefore, this breaks away from the condition that road information satisfies storage disengaging road information.

Then, process based on the setting of the path of navigation of the vehicle navigation apparatus 100 in flowchart text variation 1 shown in Figure 8.This process flow diagram shown in Figure 8 begins when having inputted purpose or when having inputted departure place and destination.That is, if the setting of indication path of navigation from origin to destination begins.

In step S50,200 (communicator 220) sends (vehicle side the 2nd transmitting element) to the control device 10 of vehicle navigation apparatus 100 to the center from the 2nd communicator 41 with departure place information and destination information and the intrinsic identifying information of driver.

In step S51, the control device 10 of vehicle navigation apparatus 100 determines whether by the 2nd communicator 41 and receives the disengaging road information.Break away from road information (vehicle side receiving element) and enter step S53 if be judged to be to receive, break away from road information and enter step S52 if be judged to be not receive.

In addition, processing in step S52 is identical with the processing in the step S20 of above-mentioned Fig. 3, processing in processing in step S53 and the step S23 of above-mentioned Fig. 3 is same (but in this case, not to search for again), processing in step S54 is identical with the processing in the step S24 of above-mentioned Fig. 3, so description thereof is omitted.

Then, based on process flow diagram shown in Figure 9, the transmission processing of the disengaging road information at the center 200 in variation 1 is described.

In step S60, the control device 210 at center 200 determines whether and has received departure place information, destination information and the identifying information that sends from the 2nd communicator 41 of vehicle navigation apparatus 100.Then, received (central side the 2nd receiving element) and entered step S61 if be judged to be, do not received the judgement of repeating step S60 if be judged to be.

In step S61, the path of navigation of control device 210 search from the departure place shown in the departure place information that receives to the destination shown in destination information at center 200.In addition, the search of this path of navigation processing is identical with the processing of the S20 of above-mentioned Fig. 3, so description thereof is omitted.

In step S62, the control device 210 at center 200 carries out the retrieval identical with the step S21 of above-mentioned Fig. 3, but at this, in database 230, the identifying information with receiving of storage has been set up related disengaging road information becomes searching object.That is, retrieval has been set up disengaging road information (retrieval unit) related and that be associated with the departure place information that receives and destination information with identifying information.In addition, the disengaging road information here is made as, and is included in the disengaging road information of the point of crossing in the path of navigation that searches in step S61.

In step S63, the control device 210 at center 200 determines whether the corresponding road information that breaks away from of existence by the retrieval of step S62.Then, be judged to be in the situation that has corresponding disengaging road information, enter step S64, be judged to be in the situation that does not have corresponding disengaging road information, return to step S60.In addition, also can be set as, be judged to be in the situation that does not have corresponding disengaging road information, vehicle navigation apparatus 100 is sent the information that there is not corresponding this situation of disengaging road information in expression.

Then, in step S64, the disengaging road information that the control device 210 at center 200 will extract in the retrieval of step S62 sends to vehicle navigation apparatus 100 (central side transmitting element) from communicator 220.

By such setting, even during in addition vehicle of the vehicle (such as hiring a car etc.) that the driver drives self, also can set and be difficult for the suitable path of navigation that breaks away from.

In addition, at this, as the disengaging road information that is associated with departure place information and destination information, adopted retrieval to comprise the example of the disengaging road information of the point of crossing in the path of navigation that searches, but the invention is not restricted to this.As the disengaging road information that is associated with departure place information and destination information, the disengaging road information of the point of crossing in comprising the path of navigation that searches, also can retrieve the disengaging road information that comprises the point of crossing of point of crossing in specialized range in the path of navigation.

In addition, can expect, the disengaging road information that the number of times that center 200 (control device 210) receives reaches setting represents that a plurality of drivers broke away from from path of navigation in same place.That is, can expect, be difficult to especially distinguish the point of crossing with the corresponding road of path of navigation.Therefore, the control device 210 that is preferably center 200 is obtained the statistics of the disengaging road information that receives, and the disengaging road information that the number of times that receives is reached setting sends to rolling stock guider 200.

(variation 2)

Then, based on Figure 10～Figure 14, path guiding device in variation 2 is described.

Path guiding device in present embodiment comprises: vehicle navigation apparatus 100 and the central side device (control device 210, communicator 220, database 230) that is arranged at the center 200 of outside vehicle.In addition, the structure of the path guiding device in variation 2 is identical with above-mentioned variation 1 (Fig. 5), so detailed.

In above-mentioned variation 1, vehicle navigation apparatus 100 will send to center 200 by the disengaging road information that control device 10 is judged to be (situation when having broken away from from path of navigation based on the vehicle information of situation (expression) is judged) of transmission.But, the invention is not restricted to this.

As shown in this variation 2, can be also, vehicle navigation apparatus 100 to the center 200 when sending vehicles and having broken away from from path of navigation situation (information of expression situation), reach when vehicle has been broken away from from path of navigation enter road information, the information that leaves the road, the point of crossing information relevant to the point of crossing set up related information and sent to center 200.In this case, the situation when control device 210 at center 200 has broken away from from path of navigation based on the vehicle information of situation (expression), determine whether when storage has broken away from vehicle from path of navigation enter road information, the information that leaves the road, the point of crossing information relevant to the point of crossing set up related information with as the disengaging road information.That is, the control device 210 at center 200 carries out the judgement of the step S34 in the process flow diagram of above-mentioned Fig. 6.

In addition, this vehicle navigation apparatus 100 to the center 200 send vehicle has been broken away from from path of navigation the time enter road information, to have set up related information be not that distortion of image example 1 is judged as transmission based on situation (situation when vehicle has broken away from from path of navigation) like that for the information that leaves the road and point of crossing information.That is, in the step S77 of Figure 10, the disengaging road informations of vehicle navigation apparatus 100 200 transmissions to the center are not that distortion of image example 1 is judged as transmission based on situation like that.Therefore, when vehicle navigation apparatus 100 breaks away from from path of navigation whenever vehicle, all to the center 200 send will enter road information, the information that leaves the road and point of crossing information set up related information.But, in variation 2, for ease of explanation, with this information also referred to as breaking away from road information.

At this, the processing action of the vehicle navigation apparatus 100 in variation 2 is described.

At first, based on the transmission processing of the disengaging road information of the vehicle navigation apparatus 100 in flowchart text variation 2 shown in Figure 10.In addition, the step S30 of the step S70 of the process flow diagram that this is shown in Figure 10～step S72 and above-mentioned process flow diagram shown in Figure 6～step S32 (that is, the step S10 of above-mentioned process flow diagram shown in Figure 2～step S12) is identical, so description thereof is omitted.

In step S73, the road that 10 pairs of vehicles of the control device of vehicle navigation apparatus 100 travelled when entering the point of crossing that disengaging detected (enter the highway section, to the road that enters of point of crossing) is confirmed to process.

At this, based on Figure 11, confirmation processing that this enters the highway section is described.In step S710, the control device 10 of vehicle navigation apparatus 100 is according to the road information (entering road information) that storage in RAM when breaking away from etc. detected, confirms that vehicle travelled when entering the point of crossing that disengaging detected whether to have right-turning traffic road or left-hand bend roadway in road.Then, be judged to be in the situation that does not have right-turning traffic road or left-hand bend roadway and enter step S711, be judged to be and finish to enter the process flow diagram (returning) that Figure 10 is confirmed to process and get back in the highway section in the situation of existence.In addition, here right-turning traffic road or having or not of left-hand bend roadway refer to, the right-turning traffic road of the direction that leaves the road or the having or not of left-hand bend roadway set in the path of navigation.That is, path of navigation is set as in the situation that turn right in the point of crossing, is judged to be "Yes" when having the right-turning traffic road, is judged to be "No" when not having right-turning traffic road and left-hand bend roadway or when only having the left-hand bend roadway.In addition, the road information here is the relevant information of road as described above, that travelled when vehicle enters the point of crossing when vehicle being detected and broken away from from path of navigation.

In step S711, the control device 10 of vehicle navigation apparatus 100 will represent not exist in road (entering the highway section) that vehicle travelled when entering the point of crossing that disengaging detected turns right or the information of this situation of left-hand bend roadway is added to and breaks away from road information.Be added to such as sign-posting etc. and break away from road information.

Then, get back to the process flow diagram of Figure 10, in step S74, the control device 10 of vehicle navigation apparatus 100 detects the confirmation of the point of crossing (node) of disengaging and processes.

At this, illustrate that based on Figure 12 the confirmation of this node is processed.In step S720, the control device of vehicle navigation apparatus 100 10 confirms according to the point of crossing information that storage in RAM when breaking away from etc. detected whether the point of crossing that disengaging detected exists traffic lights.Then, do not exist traffic lights to enter rapid S721 if be judged to be, if be judged to be the flow process (returning) that exists end node confirmation to process and get back to Figure 10.In addition, the point of crossing information here is the relevant information in point of crossing as described above, when vehicle being detected and having broken away from from path of navigation.

In step S721, the control device 10 of vehicle navigation apparatus 100 locates not have the information of this situation of traffic lights to be added to the disengaging road information point of crossing (node) that expression detects disengaging.Be added to the disengaging road information such as setting up sign etc.

Then, get back to the process flow diagram of Figure 10, in step S75, the control device 10 of vehicle navigation apparatus 100 guides the confirmation of the road (leaving the highway section) that leaves the point of crossing from having occured to break away from the path and processes.

At this, based on Figure 13, confirmation processing that this leaves the highway section is described.In step S730, the control device 10 of vehicle navigation apparatus 100 confirms whether the number of track-lines of the road (leaving the highway section) that the point of crossing from having occured to break away from path of navigation is left is (number of track-lines n 〉=2) more than two lane highways.Although this leaves the road and is directed the path and sets, and is the road that vehicles failed travels.Then, be judged to be in the situation of two lane highways above (number of track-lines n 〉=2) and enter step S731, be judged to be in the situation that is not two lane highways above (number of track-lines n＜2) and enter step S732.

In step S731, the control device 10 of vehicle navigation apparatus 100 will represent that the number of track-lines of leave the road (leaving the highway section) that the point of crossing from having occured to break away from path of navigation is left is that the information of (number of track-lines n 〉=2) this situation more than two lane highways is added to the disengaging road information.Be added to the disengaging road information such as setting up sign etc.

In step S732, the control device 10 of vehicle navigation apparatus 100 confirms whether leave the road (leaving the highway section) that the point of crossing from having occured to break away from path of navigation is left stops up.Then, be judged to be in the situation of obstruction and enter step S733, be judged to be and finish to leave the process flow diagram (returning) that Figure 10 is confirmed to process and get back in the highway section in nonclogging situation.The judgement of whether stopping up in addition, can according to congestion degree whether setting with on judge.

In step S733, the control device 10 of vehicle navigation apparatus 100 will represent that leave the road (leaving the highway section) that the point of crossing from having occured to break away from path of navigation is left stopping up the information of this situation and be added to the disengaging road information.Be added to the disengaging road information such as setting up sign etc.

Then, get back to the process flow diagram of Figure 10, in step S76, the control device 10 of vehicle navigation apparatus 100 detects the confirmation of the outside essential factor when breaking away from and processes.This outside essential factor refers to condition of road surface (enter highway section, node, leave the highway section) situation in addition, is the indoor situation of in the above-described embodiment car, speed of a motor vehicle etc.

At this, illustrate that based on Figure 14 the confirmation of this outside essential factor is processed.In step S740, when the control device of vehicle navigation apparatus 100 10 confirms that vehicle being detected has broken away from from path of navigation, whether the vehicle speed signal of vehicle is more than setting.Then, being judged to be vehicle speed signal is to enter step S741 in the above situation of setting, and being judged to be vehicle speed signal is not to enter step S742 in the above situation of setting.

In step S741, the vehicle speed signal the when control device 10 of vehicle navigation apparatus 100 detects expression vehicle and broken away from from path of navigation is that more than setting, the information of this situation is added to the disengaging road information.Be added to the disengaging road information such as setting up sign etc.

In step S742, the control device of vehicle navigation apparatus 100 10 confirm to detect vehicle when path of navigation breaks away from the driver of vehicle whether talk.Then, being judged to be is to enter step S743 in situation in talking, is judged to be in the situation in not being to talk and enters step S744.

In step S743, the control device 10 of vehicle navigation apparatus 100 with expression detect vehicle when path of navigation breaks away from the driver of vehicle be that the information of this situation is added to the disengaging road information talk.Be added to the disengaging road information such as setting up sign etc.

In step S744, whether indoor when the control device of vehicle navigation apparatus 100 10 confirms that vehicle being detected has broken away from from path of navigation have a voice output.Then, be judged to be in the situation of voice output and enter step S745, be judged to be and enter step S746 in the situation that there is no voice output.

In step S745, indoor when the control device 10 of vehicle navigation apparatus 100 detects expression vehicle and broken away from from path of navigation have the information of this situation of voice output to be added to the disengaging road information.Be added to the disengaging road information such as setting up sign etc.

In step S746, when the control device of vehicle navigation apparatus 100 10 confirms that vehicle being detected has broken away from from path of navigation, whether operating switch group 50 is in operation.Then, being judged to be is to enter step S747 in situation in operation, is judged to be and finishes the process flow diagram (returning) that outside essential factor confirms to process and get back to Figure 10 in situation not in operation.

In step S747, when the control device 10 of vehicle navigation apparatus 100 detects expression vehicle and broken away from from path of navigation, operating switch group 50 is that the information of this situation in operation is added to the disengaging road information.Be added to the disengaging road information such as setting up sign etc.

Then, get back to the process flow diagram of Figure 10, in step S77, the situation when control device 10 of vehicle navigation apparatus 100 breaks away from vehicle from the path of navigation information of situation (expression) and when vehicle has been broken away from from path of navigation enter road information, the information that leaves the road, the point of crossing information relevant to the point of crossing set up related disengaging road information, with the intrinsic identifying information of the driver of vehicle together, send to center 200 (communicator 220) (vehicle side the 1st transmitting element) from the 2nd communicator 41.

And, receive the control device 210 at the center 200 of this disengaging road information, situation when having broken away from from path of navigation based on the vehicle information of situation (expression), determine whether storage with vehicle when path of navigation breaks away from enter road information, the information that leaves the road, the point of crossing information relevant to the point of crossing set up related information (this information is stored (login) to database 230).That is, the control device 210 at center 200 carries out the judgement of the step S34 in the process flow diagram of above-mentioned Fig. 6.

By such setting, the situation the when control device 210 at center 200 can be grasped vehicle and broken away from from path of navigation.

In addition, by during personal information is kept in the heart, can statistical the ground judgement be the road (to the road that enters road and leave from the point of crossing of point of crossing) that breaks away from of a part of driver only, or the road (to the road that enters road and leave from the point of crossing of point of crossing) that breaks away from of a lot of drivers.Thus, as the frequent point (point) that breaks away from of other drivers, can arouse attention for other drivers (not logining and break away from the driver of the same or same road of road information) of the Route guiding that carries out for the first time this road (to the road that enters road and leave from the point of crossing of point of crossing).As the method that arouses attention, implement special sound guidance, eject (pop-up) when path computing, can show the frequent road that breaks away from of other drivers is guided this situation.In addition, can also carry out infrastructure based on these information and be equipped with (outfit of traffic lights, billboard outfit etc.).

In addition, the control device 210 at center 200 carries out the processing same with above-mentioned process flow diagram shown in Figure 9.In addition, as above-mentioned, as the disengaging road information that is associated with departure place information and destination information, the disengaging road information of the point of crossing in comprising the path of navigation that searches, also can retrieve the point of crossing that comprises in the path of navigation is the disengaging road information of the point of crossing in specialized range.In addition, also can obtain the statistics of the disengaging road information that is judged to be storage, the disengaging road information that the number of times that receives is reached setting sends to rolling stock guider 200.

In addition, at this, will enter highway section, node, leave the highway section, outside essential factor (speed of a motor vehicle, indoor conditions) adopts as situation, but the invention is not restricted to this.Shown in embodiment described above, the restricted information that leaves the road that the information of the traverses rows number that leaves the road that the point of crossing from having occured to break away from the information of the vehicle number in the track, opposite of the traveling lane of the vehicle (this car) that the point of crossing that also can adopt expression to occur to break away from is located, expression path of navigation is left, the point of crossing from having occured to break away from path of navigation are left etc.

And then, also can comprise in 200 information that send from vehicle navigation apparatus 100 to the center expression driver in the information of the driving trend of point of crossing, represent the information etc. of driver's urgency.Therefore, the control device 210 at center 200 is except above-mentioned condition, also can consider to represent the information of the trend of driving, expression driver's the information of urgency, and determine whether when storage has broken away from vehicle from path of navigation enter road information, the information that leaves the road, the point of crossing information relevant to the point of crossing set up related information.

Above-mentionedly openly comprise following embodiment.

According to an embodiment of the present disclosure, path guiding device is set path of navigation from origin to destination, and this path of navigation is guided, and it has: positional information obtains the unit, is arranged at vehicle, obtains the positional information relevant to the position of this vehicle; Cartographic information is obtained the unit, is arranged at vehicle, obtains cartographic information, and this cartographic information comprises the point of crossing information relevant to each point of crossing road information relevant with the road that is connected with each point of crossing; The path setting unit is arranged at vehicle, and map-based information is set path of navigation from origin to destination; The Route guiding unit is arranged at above-mentioned vehicle, carries out from origin to destination Route guiding based on path of navigation and positional information; Break away from detecting unit, be arranged at above-mentioned vehicle, when above-mentioned Route guiding unit guides path, based on path of navigation and positional information, detect above-mentioned vehicle and break away from this situation from above-mentioned path of navigation; And break away from the road information storage unit, and the storage road breaks away from information, and this disengaging road information has been set up related with the relevant point of crossing information in point of crossing when above-mentioned vehicle being detected and broken away from this situation from path of navigation.Break away from that road information by entering road information and the information structure that leaves the road, entering road information is when vehicle is entered the point of crossing that detects when breaking away from, the road information relevant to the road that was travelled is defined as with respect to the entering road of this point of crossing and represents that this enters the information of road till the point of crossing.The information of leaving the road is that the point of crossing when vehicle is broken away from from detecting when leaving, the road information relevant to the road that begins to travel from the point of crossing are defined as with respect to leaving the road of this point of crossing and represent the information that this leaves the road.Above-mentioned path setting unit for shown in above-mentioned disengaging road information leave the road or with the point of crossing shown in above-mentioned disengaging road information and the similar point of crossing of road and road in leave the road, make the relative importance value when being adopted as path of navigation set path of navigation than the lowland detected before disengaging more by above-mentioned disengaging detecting unit.

The point of crossing that breaks away from and entering road and leaving the road and can be regarded as the path that also easily breaks away from when next time travelling (point of crossing, enter road, leave the road) have in addition at this moment occured from path of navigation in vehicle reality, with such point of crossing and at this moment enter road and leave the road same point of crossing and road (enter road and leave the road) can be regarded as the path (point of crossing, enter road, leave the road) of easy disengaging.That is, in other words, such path is the path of this situation of point of crossing of being difficult for distinguishing the guiding of turning right or turning left in path of navigation (namely easily leak and see).At this, as mentioned above, the pre-stored disengaging road information that enters road and leave the road relevant that reaches from the point of crossing that path of navigation has occured to break away to vehicle reality at this moment.And, when setting path of navigation, for leaving the road in the path of easy disengaging (point of crossing, enter road, leave the road), make relative importance value ratio when being adopted as path of navigation the lowland be detected before disengaging more and set path of navigation, thereby can suppress to comprise in path of navigation path as described above, can set the suitable path of navigation that is difficult for disengaging.

Scheme instead, a kind of path guiding device is provided, can also possess outside situation and obtain the unit, this outside situation obtains the unit and is arranged at above-mentioned vehicle, when above-mentioned vehicle being detected and broken away from this situation from above-mentioned path of navigation by above-mentioned disengaging detecting unit, obtain the outside situation of above-mentioned vehicle.Take the satisfied situation of stipulating of said external situation as condition, the above-mentioned disengaging road information of above-mentioned disengaging road information cell stores.Whether vehicle breaks away from from path of navigation also can be learnt according to the outside situation of vehicle.That is, even identical point of crossing, enter road, leave the road, because the outside situation of vehicle is different, situation about breaking away from from path of navigation is arranged, situation about not breaking away from is also arranged.As mentioned above, outside situation when having broken away from from path of navigation take vehicle satisfies the situation of regulation as condition, storage breaks away from road information, the relative importance value of the path that the possibility that breaks away from by reduction is higher thereby (point of crossing, enter road, leave the road), namely be difficult for distinguishing the relative importance value that leaves the road at place, point of crossing of this situation of point of crossing of the guiding of turning right or turning left in path of navigation, can set more suitably path of navigation.

The vehicle number in the track, opposite of the traveling lane of the above-mentioned vehicle that the intersection that scheme instead, said external situation also can represent to occur to break away from is pointed out.Do not reach setting as condition take this vehicle number, the above-mentioned disengaging road information of above-mentioned disengaging road information cell stores.Like this, as the outside situation of vehicle, can adopt the vehicle number in the track, opposite at the place, point of crossing when having occured to break away from.For example, when wanting according to path of navigation to turn right in the point of crossing, in the more situation of the vehicle number in track, opposite, the driver spend long-time (not liking the stand-by period) or was not easy to turn right owing to not liking on turning right, thereby existed selection from the possibility in the path of path of navigation disengaging.That is, can expect, the driver selects wittingly from the path of path of navigation disengaging.On the other hand, in the not so much situation of the vehicle number in track, opposite, be not easier to even the driver does not spend long-time on turning right or turns right, had the possibility of selecting from the path that path of navigation breaks away from yet.In this case, can expect, the driver is leaked and is seen guided crossover point (point of crossing that guiding is turned right or turned left), by mistake selects the path that breaks away from from path of navigation.Therefore, can regard as, next time after, the possibility that breaks away from from path of navigation when travel in (point of crossing, enter road, leave the road) or same path in this path is also higher.Therefore, by above-mentioned such setting, the relative importance value in the path that the possibility that breaks away from by reduction is higher (point of crossing, enter road, leave the road), namely be reduced in this situation of point of crossing, the relative importance value that the leaves the road place, point of crossing that are difficult for distinguishing the guiding of turning right or turning left in path of navigation, can set more suitably path of navigation.

Scheme instead, said external situation also can represent the traverses rows number that leaves the road that the point of crossing from having occured to break away from above-mentioned path of navigation is left.Do not reach setting as condition take this traverses rows number, the above-mentioned disengaging road information of above-mentioned disengaging road information cell stores.Like this, as the outside situation of vehicle, can adopt occured to break away from the time path of navigation in the traverses rows number that leaves the road.For example, want according to path of navigation when point of crossing right-hand bend or left-hand bend, in the more situation of the traverses rows number that leaves the road, because the driver does not like spending long-time (not liking the stand-by period) in right-hand bend or on turning left, perhaps be not easy to turn right or turn left, so there is the possibility of selecting from the path that path of navigation breaks away from.That is, can expect, the driver selects wittingly from the path of path of navigation disengaging.On the other hand, long-time even the driver did not spend in right-hand bend or left-hand bend in the situation that the traverses rows number that leaves the road is not so much, or easily turn right or turn left, also exist selection from the possibility in the path of path of navigation disengaging.In this case, can expect, the driver is leaked and is seen the guided crossover point, by mistake selects the path that breaks away from from path of navigation.Therefore, can think, next time after, when travelled in (point of crossing, enter road, leave the road) or same path in this path, the possibility that breaks away from from path of navigation was also higher.Therefore, by above-mentioned such setting, the relative importance value in the path that the possibility that breaks away from by reduction is higher (point of crossing, enter road, leave the road), namely lower the relative importance value that leaves the road at the place, point of crossing of this situation of point of crossing that is difficult for distinguishing the guiding of turning right or turning left in path of navigation, can set more suitably path of navigation.

Scheme instead, said external situation also can represent the congestion degree of the road that the point of crossing from having occured to break away from above-mentioned path of navigation is left.Do not reach setting as condition take this congestion degree, the above-mentioned disengaging road information of above-mentioned disengaging road information cell stores.Like this, as the outside situation of vehicle, can adopt the congestion degree that leaves the road in the path of navigation when having occured to break away from.For example, want according to path of navigation to turn right in the point of crossing or when turning left, in the situation about stopping up that leaves the road, exist the driver not like stopping up and select from the possibility in the path that path of navigation breaks away from.That is, can expect, the driver selects wittingly from the path of path of navigation disengaging.On the other hand, do not stop up so in the situation that leave the road, also do not select from the possibility in the path that path of navigation breaks away from even the driver is not stopped up in existence.In this case, can expect, the driver is leaked and is seen the guided crossover point, by mistake selects the path that breaks away from from path of navigation.Therefore, can think, next time after, when travelled in (point of crossing, enter road, leave the road) or same path in this path, the possibility that breaks away from from path of navigation was also higher.Therefore, by above-mentioned such setting, the relative importance value in the path that the possibility that breaks away from by reduction is higher (point of crossing, enter road, leave the road), namely be reduced in the relative importance value that leaves the road at the place, point of crossing of this situation of point of crossing that is difficult for distinguishing the guiding of turning right or turning left in path of navigation, can set more suitably path of navigation.

Scheme instead, said external situation can be also the situations that have or not of the traffic lights of the point of crossing that breaks away from that obtained generation in above-mentioned path of navigation.Existing this traffic lights as condition, the above-mentioned disengaging road information of above-mentioned disengaging road information cell stores.Like this, as the outside situation of vehicle, can adopt the having or not of traffic lights of the point of crossing when having occured to break away from.For example, in path of navigation, when at the guided crossover point place of the guiding of turning right or turning left, disengaging having occured, in the situation that there is not traffic lights in guided crossover point, can expect, the driver is the point of crossing not to be noted, thereby selects from the path of path of navigation disengaging.Therefore, can think, next time after, when travel in (point of crossing, enter road, leave the road) or same path in this path, if having traffic lights at the guided crossover point, have the possibility that does not break away from from path of navigation.On the other hand, in the situation that there is traffic lights in the guided crossover point, can expect do not know it is the guided crossover point although the driver recognizes the point of crossing, thereby select from the path of path of navigation disengaging.Therefore, can think, next time after, when travel in (point of crossing, enter road, leave the road) or same path in this path, even have traffic lights at the guided crossover point, break away from possibility from path of navigation also higher.Therefore, by above-mentioned such setting, can reduce the relative importance value in the possibility of disengaging higher path (point of crossing, enter road, leave the road), namely be reduced in the relative importance value that leaves the road at the place, point of crossing of this situation of point of crossing that is difficult for distinguishing the guiding of turning right or turning left in path of navigation, can set more suitably path of navigation.

Scheme instead, a kind of path guiding device is provided, can also possess vehicle speed signal and obtain the unit, this vehicle speed signal obtains the unit and is arranged at above-mentioned vehicle, when above-mentioned vehicle being detected and broken away from this situation from above-mentioned path of navigation by above-mentioned disengaging detecting unit, obtain the vehicle speed signal of above-mentioned vehicle.Do not reach setting as condition take above-mentioned vehicle speed signal, the above-mentioned disengaging road information of above-mentioned disengaging road information cell stores.At this, whether vehicle breaks away from and can learn according to the travel speed of vehicle from path of navigation.That is, even identical point of crossing, enter road, leave the road, because the travel speed of vehicle is different, there is situation about breaking away from from path of navigation, also has situation about not breaking away from.For example, in path of navigation, when disengaging has occured in the guided crossover point place of the guiding of turning right or turning left, vehicle is with when speed is travelled faster, can expect, although the driver notices the guided crossover point, because travel speed is very fast, thereby select from the path of path of navigation disengaging.Therefore, can think, next time after, when travel in (point of crossing, enter road, leave the road) or same path in this path, if travel speed is so not fast, have the possibility that does not break away from from path of navigation.On the other hand, when vehicle travels with so not fast speed, can expect, not advance because the more complicated and driver in for example point of crossing knows that this to which bar leaves the road, and select the path that breaks away from from path of navigation.Therefore, can think, next time after, when travelled in (point of crossing, enter road, leave the road) or same path in this path, the possibility that breaks away from from path of navigation was also higher.Therefore, by above-mentioned such setting, the relative importance value in the path that the possibility that breaks away from by reduction is higher (point of crossing, enter road, leave the road), namely be reduced in the relative importance value that leaves the road at the place, point of crossing of this situation of point of crossing that is difficult for distinguishing the guiding of turning right or turning left in path of navigation, can set more suitably path of navigation.

Scheme instead, a kind of path guiding device is provided, also can also possess indoor conditions and obtain the unit, this indoor conditions obtains the unit and is arranged at above-mentioned vehicle, when above-mentioned vehicle being detected by above-mentioned disengaging detecting unit and broken away from this situation from above-mentioned path of navigation, obtain the indoor conditions of above-mentioned vehicle.The situation that situation satisfies regulation in the above-mentioned car is as condition, the above-mentioned disengaging road information of above-mentioned disengaging road information cell stores.At this, whether vehicle breaks away from and can learn according to the indoor conditions of vehicle from path of navigation.That is, even identical point of crossing, enter road, leave the road, because the indoor conditions of vehicle is different, there is situation about breaking away from from path of navigation, also has situation about not breaking away from.Like this, indoor conditions when having broken away from from path of navigation take vehicle satisfies the situation of regulation as condition, storage breaks away from road information, the relative importance value of the path that the possibility that can reduce disengaging is higher thereby (point of crossing, enter road, leave the road), namely be reduced in the relative importance value that leaves the road at the place, point of crossing of this situation of point of crossing that is difficult for distinguishing the guiding of turning right or turning left in path of navigation, can set more suitably path of navigation.

Scheme instead, above-mentioned indoor conditions also can mean the situation of the talk situation in above-mentioned vehicle indoor.Be not in talk as condition the above-mentioned disengaging road information of above-mentioned disengaging road information cell stores take the driver of this vehicle.Like this, as the indoor conditions of vehicle, can adopt the indoor talk situation when having occured to break away from.For example, when from path of navigation, disengaging having occured, the driver is in situation in talk, can expect, selects because the driver is immersed in the path that breaks away from from path of navigation in talk.Therefore, next time after, when travel in (point of crossing, enter road, leave the road) or same path in this path, if the driver is not talking, have the possibility that does not break away from from path of navigation.On the other hand, when from path of navigation, disengaging having occured, the driver is not in the situation that in talk, can expect, the driver is leaked and seen guided crossover point and select from the path of path of navigation disengaging.Therefore, can think, next time after, when travelled in (point of crossing, enter road, leave the road) or same path in this path, the possibility that path of navigation breaks away from was also higher.Therefore, arrange as described above, can reduce the relative importance value in the possibility of disengaging higher path (point of crossing, enter road, leave the road), namely be reduced in the relative importance value that leaves the road at the place, point of crossing of this situation of point of crossing that is difficult for distinguishing the guiding of turning right or turning left in path of navigation, can set more suitably path of navigation.

Scheme instead, above-mentioned indoor conditions also can mean the situation of the indoor voice output situation of above-mentioned vehicle.Indoorly there is no voice output as condition, the above-mentioned disengaging road information of above-mentioned disengaging road information cell stores take this.Like this, as the indoor conditions of vehicle, can adopt the indoor voice output situation when having occured to break away from.For example, when from path of navigation, disengaging having occured, the driver can expect in the situation that listen to the music, and selects because the driver is immersed in the path that breaks away from from path of navigation in music.Therefore, next time after, when travel in (point of crossing, enter road, leave the road) or same path in this path, if the driver is not listening to the music, have the possibility that does not break away from from path of navigation.On the other hand, when from path of navigation, disengaging having occured, the driver can expect not in the situation that listen to the music, and the driver is leaked and seen guided crossover point and select from the path of path of navigation disengaging.Therefore, can think, next time after, when travelled in (point of crossing, enter road, leave the road) or same path in this path, the possibility that breaks away from from path of navigation was also higher.Therefore, by above-mentioned such setting, can reduce the relative importance value in the possibility of disengaging higher path (point of crossing, enter road, leave the road), namely be reduced in the relative importance value that leaves the road at the place, point of crossing of this situation of point of crossing that is difficult for distinguishing the guiding of turning right or turning left in path of navigation, can set more suitably path of navigation.

Scheme instead, above-mentioned indoor conditions also can represent to be arranged at the operating conditions of the functional unit of above-mentioned indoor information equipment.Be not in operation as condition the above-mentioned disengaging road information of above-mentioned disengaging road information cell stores take this functional unit.Like this, as the indoor conditions of vehicle, can adopt the operating conditions of the functional unit when having occured to break away from.For example, in when, from path of navigation, disengaging having occured, the driver in the situation that the operating operation parts can expect, due to the driver at the operating operation parts, thereby select the path that breaks away from from path of navigation.Therefore, next time after, when travel in (point of crossing, enter road, leave the road) or same path in this path, if not at the operating operation parts, there is the possibility that does not break away from from path of navigation in the driver.On the other hand, when from path of navigation, disengaging having occured, the driver does not have in the situation that the operating operation parts can be expected, the driver is leaked the path of seeing guided crossover point and selecting to break away from from path of navigation.Therefore, can think, next time after, when travelled in (point of crossing, enter road, leave the road) or same path in this path, the possibility that breaks away from from path of navigation was also higher.Therefore, by above-mentioned such setting, can reduce the relative importance value in the possibility of disengaging higher path (point of crossing, enter road, leave the road), namely be reduced in the relative importance value that leaves the road at the place, point of crossing of this situation of point of crossing that is difficult for distinguishing the guiding of turning right or turning left in path of navigation, can set more suitably path of navigation.

Instead scheme, provide a kind of path guiding device, can also possess driving trend and obtain the unit, and this driving trend obtains the unit and is arranged at above-mentioned vehicle, obtains the driver of above-mentioned vehicle in the driving trend at place, point of crossing.The trend that represents not to break away from from the point of crossing take above-mentioned driving trend is as condition, the above-mentioned disengaging road information of above-mentioned disengaging road information cell stores.Like this, driving trend represents not can to expect in the situation of the trend that breaks away from from the point of crossing, and the driver is leaked and seen guided crossover point and select from the path of path of navigation disengaging.Therefore, can think, next time after, when travelled in (point of crossing, enter road, leave the road) or same path in this path, the possibility that breaks away from from path of navigation was also higher.Therefore, by above-mentioned such setting, can reduce the relative importance value in the possibility of disengaging higher path (point of crossing, enter road, leave the road), namely be reduced in the relative importance value that leaves the road at the place, point of crossing of this situation of point of crossing that is difficult for distinguishing the guiding of turning right or turning left in path of navigation, can set more suitably path of navigation.

Instead scheme, provide a kind of path guiding device, can also possess the urgency judging unit, and this urgency judging unit is arranged at above-mentioned vehicle, obtains the urgency whether driver of the above-mentioned vehicle of expression worries.Urgency take the driver by above-mentioned urgency judgment unit judges does not reach setting as condition, the above-mentioned disengaging road information of above-mentioned disengaging road information cell stores.At this, whether whether vehicle break away to worry according to the driver of vehicle from path of navigation is learnt.That is, even identical point of crossing, enter road, leave the road, whether worry according to the driver, have situation about breaking away from from path of navigation, also have situation about not breaking away from.For example, in path of navigation, when disengaging has occured the guided crossover point of turning right from guiding or turn left, in the situation that the driver worries, can expect, see the guided crossover point because the driver worries to leak, select the path that breaks away from from path of navigation.Therefore, next time after, when travel in (point of crossing, enter road, leave the road) or same path in this path, have the possibility that does not break away from from path of navigation.On the other hand, in the situation that the driver no hurry, can expect, the driver does not know because for example point of crossing is more complicated leave the road to which bar and advances, thereby selects the path that breaks away from from path of navigation.Therefore, can think, next time after, when travelled in (point of crossing, enter road, leave the road) or same path in this path, the possibility that breaks away from from path of navigation was also higher.Therefore, by above-mentioned such setting, can reduce the relative importance value in the possibility of disengaging higher path (point of crossing, enter road, leave the road), namely, reduce the relative importance value that leaves the road at the place, point of crossing of this situation of point of crossing that is difficult for distinguishing the guiding of turning right or turning left in path of navigation, can set more suitably path of navigation.

Instead scheme, provide a kind of path guiding device, can also comprise the vehicle side device that is arranged at above-mentioned vehicle and the central side device that is arranged at the center of this outside vehicle.This vehicle side device and this central side device can communicate.Above-mentioned vehicle side device possesses: vehicle side the first transmitting element, break away from this situation from above-mentioned path of navigation if above-mentioned vehicle detected by above-mentioned disengaging detecting unit, above-mentioned disengaging road information and the intrinsic identifying information of driver are sent to above-mentioned central side device together; Vehicle side the second transmitting element if the setting of the path of navigation on ground is instructed to from above-mentioned departure place to above-mentioned purpose, sends to request signal above-mentioned central side device, this request signal to comprise information and the above-mentioned identifying information of this departure place of expression and this destination; And the vehicle side receiving element, receive the information of sending from above-mentioned central side device.Above-mentioned central side device possesses: central side the first receiving element receives the above-mentioned disengaging road information and the above-mentioned identifying information that send from above-mentioned vehicle side the first transmitting element; Central side the second receiving element receives the information that comprises the above-mentioned departure place of expression and above-mentioned purpose ground of sending from above-mentioned vehicle side the second transmitting element and the above-mentioned request signal of above-mentioned identifying information; Above-mentioned disengaging road information storage unit will be set up related and storage with above-mentioned identifying information from the above-mentioned disengaging road information that above-mentioned vehicle side transmitting element sends; The first retrieval unit, receive in the situation of above-mentioned request signal, retrieve store in above-mentioned disengaging road information storage unit set up above-mentioned disengaging road information related and that be associated with the information on expression above-mentioned departure place and above-mentioned purpose ground with above-mentioned identifying information; And the central side transmitting element, will send to above-mentioned vehicle side device by the above-mentioned disengaging road information that above-mentioned retrieval unit extracts.By such setting, even in addition the time, also setting, the vehicle (for example, hiring a car etc.) of driving self the driver is difficult for the suitable path of navigation that breaks away from.

Scheme instead, above-mentioned central side device can also possess the second search unit, according to the information on the above-mentioned departure place of expression and above-mentioned purpose ground, the path of navigation on search ground from this departure place to above-mentioned purpose.Above-mentioned the first retrieval unit retrieval comprises point of crossing in the path of navigation that searches by above-mentioned the second search unit at interior above-mentioned disengaging road information, the above-mentioned disengaging road information that is associated as the information with the above-mentioned departure place of expression and above-mentioned purpose ground.

Scheme instead, as the above-mentioned disengaging road information that is associated with the information on expression above-mentioned departure place and above-mentioned purpose ground, point of crossing in comprising the path of navigation that searches by above-mentioned search unit is interior above-mentioned disengaging road information, and above-mentioned the first retrieval unit also can be retrieved the point of crossing of point of crossing in specialized range that comprise in this path of navigation at interior above-mentioned disengaging road information.

The present invention has recorded and narrated preferred embodiment and has been used as reference, is not limited to this embodiment and structure but present invention is to be construed as.The present invention comprises the distortion in various variation and impartial scope.In addition, preferred various combinations and form, perhaps one of them key element only, perhaps comprise its above or following other combinations and form, all is construed as to be included in scope of the present invention and thought range.

Claims

1. a path guiding device, set path of navigation from origin to destination, and this path of navigation guided, and it is characterized in that having:

Positional information obtains unit (20), is arranged at vehicle, obtains the positional information relevant to the position of this vehicle;

Cartographic information is obtained unit (10), is arranged at vehicle, obtains cartographic information, and this cartographic information comprises the point of crossing information relevant to each point of crossing road information relevant with the road that is connected with each point of crossing;

Path setting unit (10) is arranged at vehicle, and map-based information is set path of navigation from origin to destination;

Route guiding unit (10) is arranged at above-mentioned vehicle, based on path of navigation and positional information, carries out Route guiding from origin to destination:

Break away from detecting unit (10), be arranged at above-mentioned vehicle,, based on path of navigation and positional information, detect above-mentioned vehicle and break away from this situation from above-mentioned path of navigation when the path is guided in above-mentioned Route guiding unit (10); And

Break away from road information storage unit (60), storage breaks away from road information, and it is related that this disengaging road information and point of crossing information have been set up, and the point of crossing of this point of crossing information when above-mentioned vehicle being detected and broken away from this situation from path of navigation is relevant;

Break away from road information by entering road information and the information structure that leaves the road,

Enter road information and mean the information that enters road, when vehicle is entered the point of crossing that detects when breaking away from, the road information relevant to the road that travelled till the point of crossing be defined as the road that enters with respect to this point of crossing,

The information of leaving the road means the information that leaves the road, when vehicle is left the point of crossing that detects when breaking away from, the road information relevant to the road that crosses of leaveing from the point of crossing be defined as with respect to the leaving the road of this point of crossing,

Above-mentioned path setting unit (10) for shown in above-mentioned disengaging road information leave the road or with the point of crossing shown in above-mentioned disengaging road information and the similar point of crossing of road and road in leave the road, make relative importance value when being adopted as path of navigation than the relative importance value lowland setting path of navigation more that detects by above-mentioned disengaging detecting unit (10) before breaking away from.

2. path guiding device as claimed in claim 1, is characterized in that,

Also possess outside situation and obtain unit (10), be arranged at above-mentioned vehicle, when above-mentioned vehicle being detected by above-mentioned disengaging detecting unit (10) and broken away from this situation from above-mentioned path of navigation, obtain Wai Bu Zhuan Condition of above-mentioned vehicle,

Take the satisfied situation of stipulating of said external situation as condition, the above-mentioned disengaging road information of above-mentioned disengaging road information storage unit (60) storage.

3. path guiding device as claimed in claim 2, is characterized in that,

The said external situation represents, the vehicle number in the track, opposite of the traveling lane of the above-mentioned vehicle that the point of crossing that has occured to break away from is located,

Do not reach setting as condition take this vehicle number, the above-mentioned disengaging road information of above-mentioned disengaging road information storage unit (60) storage.

4. path guiding device as claimed in claim 2, is characterized in that,

The said external situation represents, the traverses rows number that leaves the road that the point of crossing from having occured to break away from above-mentioned path of navigation is left,

Do not reach setting as condition take this traverses rows number, the above-mentioned disengaging road information of above-mentioned disengaging road information storage unit (60) storage.

5. path guiding device as claimed in claim 2, is characterized in that,

The said external situation represents, the congestion degree that leaves the road that the point of crossing from having occured to break away from above-mentioned path of navigation is left,

Do not reach setting as condition take this congestion degree, the above-mentioned disengaging road information of above-mentioned disengaging road information storage unit (60) storage.

6. path guiding device as claimed in claim 2, is characterized in that,

The said external situation has obtained generation in above-mentioned path of navigation the having or not of traffic lights of the point of crossing that breaks away from,

To exist this traffic lights as condition, above-mentioned disengaging road information storage unit (60) is stored above-mentioned disengaging road information.

7. path guiding device as claimed in claim 1, is characterized in that,

Also possess vehicle speed signal and obtain unit (23), be arranged at above-mentioned vehicle, when above-mentioned vehicle being detected by above-mentioned disengaging detecting unit (10) and broken away from this situation from above-mentioned path of navigation, obtain the vehicle speed signal of above-mentioned vehicle,

Do not reach setting as condition take above-mentioned vehicle speed signal, the above-mentioned disengaging road information of above-mentioned disengaging road information storage unit (60) storage.

8. path guiding device as claimed in claim 1, is characterized in that,

Also possess indoor conditions and obtain unit (10), be arranged at above-mentioned vehicle, when above-mentioned vehicle being detected by above-mentioned disengaging detecting unit (10) and broken away from this situation from above-mentioned path of navigation, obtain situation in the car of above-mentioned vehicle,

The situation that situation satisfies regulation in the above-mentioned car is as condition, the above-mentioned disengaging road information of above-mentioned disengaging road information storage unit (60) storage.

9. path guiding device as claimed in claim 8, is characterized in that,

In above-mentioned car, situation represents the interior talk situation of car of above-mentioned vehicle,

Be not in talk as condition the above-mentioned disengaging road information of above-mentioned disengaging road information storage unit (60) storage take the driver of this vehicle.

10. path guiding device as claimed in claim 8, is characterized in that,

In above-mentioned car, situation represents the interior voice output situation of car of above-mentioned vehicle,

Do not carrying out voice output as condition in this car, the above-mentioned disengaging road information of above-mentioned disengaging road information storage unit (60) storage.

11. path guiding device as claimed in claim 8 is characterized in that,

Situation represents to be arranged at the operating conditions of the functional unit of the information equipment in above-mentioned car in above-mentioned car,

Be not in operation as condition the above-mentioned disengaging road information of above-mentioned disengaging road information storage unit (60) storage take this functional unit.

12. path guiding device as claimed in claim 1 is characterized in that,

Also possess driving trend and obtain unit (10), be arranged at above-mentioned vehicle, obtain the driver of above-mentioned vehicle in the driving trend at place, point of crossing,

The trend that represents not to break away from from the point of crossing take above-mentioned driving trend is as condition, the above-mentioned disengaging road information of above-mentioned disengaging road information storage unit (60) storage.

13. path guiding device as claimed in claim 1 is characterized in that,

Also possess urgency judging unit (10), be arranged at above-mentioned vehicle, obtain the urgency whether driver of the above-mentioned vehicle of expression worries,

Urgency take the driver that judges by above-mentioned urgency judging unit (10) does not reach setting as condition, the above-mentioned disengaging road information of above-mentioned disengaging road information storage unit (60) storage.

14. path guiding device as described in any one in claim 1～13 is characterized in that,

The central side device (200) that comprises the vehicle side device (100) that is arranged at above-mentioned vehicle and the center that is arranged at this outside vehicle,

This vehicle side device (100) can be communicated by letter with this central side device (200),

Above-mentioned vehicle side device (100) possesses:

Vehicle side the first transmitting element (41), break away from this situation from above-mentioned path of navigation if above-mentioned vehicle detected by above-mentioned disengaging detecting unit (10), together with the intrinsic identifying information of driver, above-mentioned disengaging road information is sent to above-mentioned central side device (200);

Vehicle side the second transmitting element (41), if the setting of the path of navigation on ground is instructed to from above-mentioned departure place to above-mentioned purpose, request signal is sent to above-mentioned central side device, this request signal comprises information and the above-mentioned identifying information of this departure place of expression and this destination; And

Vehicle side receiving element (41) receives the information of sending from above-mentioned central side device;

Above-mentioned central side device (200) possesses:

Central side the first receiving element (220) receives the above-mentioned disengaging road information and the above-mentioned identifying information that send from above-mentioned vehicle side the first transmitting element (41);

Central side the second receiving element (220) receives the information send from above-mentioned vehicle side the second transmitting element (41), comprise the above-mentioned departure place of expression and above-mentioned purpose ground and the above-mentioned request signal of above-mentioned identifying information;

Above-mentioned disengaging road information storage unit (230) will be set up relatedly with above-mentioned identifying information from the above-mentioned disengaging road information that above-mentioned vehicle side transmitting element (41) sends and store;

The first retrieval unit (210), when receiving above-mentioned request signal, that retrieves storage in above-mentioned disengaging road information storage unit (10) has set up above-mentioned disengaging road information related and that be associated with the information on the above-mentioned departure place of expression and above-mentioned purpose ground with above-mentioned identifying information; And

Central side transmitting element (220) will send to above-mentioned vehicle side device by the above-mentioned disengaging road information that above-mentioned the first retrieval unit (210) extracts.

15. path guiding device as claimed in claim 14 is characterized in that,

Above-mentioned central side device (200) also possesses the second search unit (210), and this second search unit (210) is searched for the path of navigation on the ground from this departure place to above-mentioned purpose according to the information on the above-mentioned departure place of expression and above-mentioned purpose ground,

Above-mentioned the first retrieval unit (210) retrieval comprises point of crossing in the path of navigation that searches by above-mentioned the second search unit (210) at interior above-mentioned disengaging road information, is used as the above-mentioned disengaging road information that is associated with the information that represents above-mentioned departure place and above-mentioned purpose ground.

16. path guiding device as claimed in claim 15 is characterized in that,

Above-mentioned the first retrieval unit (210) comprises point of crossing in the path of navigation that searches by above-mentioned the second search unit (210) interior above-mentioned disengaging road information except retrieval, also retrieval comprises the point of crossing of point of crossing in specialized range in this path of navigation at interior above-mentioned disengaging road information, is used as the above-mentioned disengaging road information that is associated with the information that represents above-mentioned departure place and above-mentioned purpose ground.