JP2001141479A - Navigation method, route providing device, moving body, system - Google Patents

Abstract

(57) [Summary] An object of the present invention is to provide a navigation method capable of more accurately informing a user of an estimated passage time of searched route / guidance data. From A plurality of vehicle M _1, the transit time of the divided path section was collected to the center 10, based on data relating to the collected transit time, estimated passage in the relevant route section of the vehicle sending the route guidance information The time is calculated, and the estimated transit time is transmitted together with the route / guidance data to be sent for each of the divided sections.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a navigation method, a route providing device, and a system suitable for providing data necessary for route guidance in a divided manner from a center side to a mobile side.

[0002]

2. Description of the Related Art As a system for providing route / guidance data (recommended route data searched and its guidance data) from a center side to a mobile side, for example, JP-A-10-19588
There is a navigation system disclosed in Japanese Patent Publication No. This is a navigation system that transmits a map image and recommended route data (or optimal route data) necessary for guiding a vehicle to a destination from a center (base) side to a vehicle side. According to this system, communication is performed between the data transmission system on the center side and the navigation device of the vehicle on the mobile side. The data transmission system has a database that stores data necessary for guiding a vehicle to a destination.

[0003] Based on a request from a vehicle-side navigation device, necessary data is read from a database and a map image is created. Further, a route search is performed to create optimal route data. The created map image and data indicating the optimum route are transmitted from the data transmission system to the vehicle. In the navigation device of the vehicle, the corresponding display is performed based on the map image and the optimum route data transmitted from the system side.

Japanese Patent Application Laid-Open No. 8-334374 discloses an on-vehicle route guidance apparatus that transmits the latest recommended route from the center side to the vehicle side when the vehicle deviates from the recommended route due to a driving operation error. Have been. According to this system, the vehicle transmits the departure place and the destination to the control center as necessary, and receives the recommended route. It is determined whether the vehicle is traveling on the recommended route. If the vehicle deviates from the recommended route, the departure point is set again and transmitted to the control center together with the destination. The information center searches for a route from the departure place after resetting to the destination received from the vehicle, and transmits data of the searched recommended route to the vehicle.

[0005]

When guiding a searched route, it is desirable to consider the time required for passing through the route, but the time required for passing the route is not considered. It varies greatly depending on how crowded the road is, and it is difficult to predict an accurate transit time.

Recently, VICS (vehicle info)
rmation & communication system). Therefore, the information on the obtained traffic congestion time cannot be used.

The present invention focuses on the above points, and provides a navigation method, a route providing apparatus, a moving body, and the like that can more accurately report the estimated passage time of the searched route / guide data. Its purpose is to provide the system.

[0008]

This and other objects are achieved by the present invention described below.

(1) A navigation method in which route / guidance data of a search route from a start position to an end position of navigation is divided and sent from the sending side to the moving side, and route guidance is provided on the moving side based on the data. A first step of dividing the searched route into predetermined segments; a second step of storing passage time information of the route supplied from the moving side; and a stored past passage time information. A third step of predicting the current route transit time from the following.

(2) The navigation method according to the above (1), further including a fourth step of correcting the estimated transit time based on the acquired current traffic information.

(3) A navigation route providing apparatus for transmitting individual divided routes obtained by dividing a route to be guided to a moving side that has made a route acquisition request at a different position, and transmitting the divided routes from another moving side. Receiving means for receiving the obtained route transit time information, accumulating means for accumulating the acquired route transit time, expected transit time calculating means for estimating the current route transit time from the accumulated past route transit time,
A transmission route providing device, comprising: transmission means for transmitting predicted predicted transit time information to a moving side of a transmission source of a route acquisition request.

(4) The estimated transit time calculation means predicts the transit time based on the latest data every time there is a request for route / guidance data from the moving side. Providing device.

(5) Transmission means for requesting the search route and its guidance data from the navigation start position to the end position to the center side, and the search route generated on the center side and the divided guide data. Receiving means for sequentially acquiring from the center side, transit time calculating means for calculating transit time of the route, and expected transit time informing means for informing the transit time expected of the route sent from the center side, when transmitting the request, A mobile object in navigation, wherein the transit time calculated by the transit time calculating means is simultaneously transmitted, and the expected transit time of the route calculated on the center side is simultaneously received at the time of receiving the search route and its guidance data.

(6) A navigation system that generates a search route from the start position to the end position of navigation and its guide data on the center side, divides the generated data, and sends the search route and the guide data to the requesting mobile side. A storage means for storing transit time information supplied from the moving side of the searched route, and a predicted transit time calculation means for estimating a current transit time based on the stored transit time information. A navigation system characterized in that an estimated transit time is sent to a moving side together with a searched route and guidance data.

(7) Further, the estimated transit time calculating means includes:
The navigation system according to (6), wherein the estimated transit time is calculated in consideration of the acquired current traffic information.

[0016]

Embodiments of the present invention will be described below in detail.

<Overall Configuration of System> First, an overall configuration of the present embodiment will be described with reference to FIGS. FIG.
1 shows a configuration of a navigation system according to the present embodiment. The navigation system according to the present embodiment includes an information center 10 and an in-vehicle device 100 which is a navigation device on the moving side.

First, from the information center 10, the transmission / reception unit 12 is a communication device including a transmission device and a reception device, and transmits and receives data to and from the vehicle-mounted device 100. A communication system such as a car phone, a mobile phone, and a PHS may be used. The arithmetic processing unit 14 includes a CPU 16 for performing arithmetic processing, and a memory 18 for storing various programs and data.

The memory 18 includes a route search program 20 for searching for a route from the current position of the vehicle (the navigation start position or the departure point) to the destination (the navigation end position), segmentation of the searched route, and a vehicle. Segment processing program 22 for setting the road length to be transmitted to the side, guidance data extraction program 24 for searching for, extracting and editing guidance data corresponding to the set road length, and communication determination program for determining whether data transmission is appropriate 25, a system control program 26 for controlling and managing the overall operation, an expected transit time calculation program 27 for calculating the expected transit time of the searched route based on the accumulated transit time data, and the like. Various programs to be executed are stored. The memory 18 also has a working area used for executing those programs.

The database 30 includes route search data 32 for searching for a recommended route, guidance data 34 in which route guidance data is accumulated, communication area data 36 in which data relating to communication areas are accumulated, and a telephone for setting a destination. Data necessary for route search and route guidance, such as destination setting data 38 such as a number and an address, and route transit time data 39 storing the time required to pass the route for each route, are stored. The route search data 32 includes data on intersections, data on roads, data on node points, and the like. The guidance data 34 includes
Various guidance data such as map data of intersections and roads, landmark data indicating major facilities, and voice guidance data are included. The communication area data 36 includes data related to communication conditions, such as an area where radio waves do not reach, and an area where radio waves are weak but communication is inappropriate.

The route transit time data 39 accumulates transit times of routes supplied from vehicles (moving sides) which are a large number of moving bodies. This transit time is data supplied from the mobile side when communicating with the mobile side, and the path traveled by the mobile side during communication between the mobile side and the center side,
It includes the distance (position where communication was performed) and the time required for movement. Since the section to be divided (the position where the communication is performed) differs depending on the moving side that supplies the data, the supplied data is temporarily stored in the database 30 as the route transit time data 39, and the transit time of the specific route is calculated. Used when doing.

Further, an external information collecting unit 40 is connected to the database 30. This external information collecting unit 40
Collects the latest road / traffic information (including information related to traffic congestion) and communication information, such as road construction, traffic regulations, new roads and facilities, and changes in communication areas, using telephone lines and the like. This is for updating the stored data as needed.

Next, the on-vehicle apparatus 100 will be described. The arithmetic processing section 101 is mainly composed of a CPU. The program storage area 102 </ b> A of the memory 102 displays a route or a landmark on the display unit 106 based on the route data and the guidance data transmitted from the information center 10, and outputs the voice of the route guidance from the voice output unit 107. A route guidance program 150, a data request program 152 for comparing the current position of the vehicle with the received route / guidance data and requesting the route / guidance data for the next route;
The arithmetic processing unit 10 includes a control program 154 for controlling the entire operation, a route transit time calculation program 155 for calculating the time required to pass through the divided sections, and the like.
1 is for storing a program to be executed.

Data storage area 102B of memory 102
Functions as a working area used as appropriate when executing the program, and also includes, for example, route / guide data (route data and guide data) 160 transmitted from the information center 10, vehicle-specific ID data 162, and the position measuring unit 104. Is used to store the vehicle position data (longitude / latitude) 164 and the route transit time data 165 calculated by the route transit time calculation program 155.

The vehicle position data 164 includes the position measurement unit 1
04, a plurality of past position data is included in addition to the current position data measured at predetermined time intervals. For example, position data of measurement points included in a certain distance or position data of a certain number of measurement points are stored. When the position is newly measured by the position measurement unit 104, the latest position data is stored and the oldest stored position data is deleted. By connecting these multiple location data,
The traveling locus of the vehicle can be obtained. This running track is
It is used for so-called map matching for specifying the road on which the vehicle is traveling.

Next, the position measuring unit 104 is a so-called GP
For measuring the position of the vehicle using S etc.,
It is provided with a GPS receiver that receives signals from a plurality of GPS satellites and measures the absolute position of the vehicle, a speed sensor and a direction sensor for measuring the relative position of the vehicle, and the like. Speed sensors and direction sensors are used for autonomous navigation. The relative position measured by these sensors is used for obtaining a position in a tunnel or the like where the GPS receiver cannot receive radio waves from satellites, or for correcting a positioning error of the absolute position measured by the GPS receiver. .

The input unit 105 includes various switches, a touch panel attached to the display surface of the display unit 106, a remote controller, a data input device using voice recognition, and the like. In the touch panel, when a user touches an icon or the like displayed on the display unit 106 with a finger, corresponding data or an instruction is input. In a data input device using voice recognition, when a user utters a voice, data or a command corresponding to the voice is input.

The display unit 106 is a display such as a liquid crystal display or a CRT, and has a touch panel as described above. The display unit 106 displays a map for route / guidance and other information, and also displays an estimated passage time. The transmission / reception unit 108 is a communication device for transmitting and receiving data to and from the information center 10, and is configured by communication devices including a transmission device and a reception device. In this case, similarly to the center side, a system such as a car phone, a mobile phone, and a PHS may be used.

<Operation on Information Center Side> Next, the operation of the information center 10 will be described. FIG. 2 shows the information center 10.
The operation of the route search / guidance data transmission process in is shown as a flowchart. First, in the vehicle-mounted device 100, the control program 15 stored in the memory 102 is used.
4 is executed by the arithmetic processing unit 101. In this operating state, when the data request program 152 stored in the memory 102 is executed based on a user's input operation, each information of the vehicle current position, the destination, and the route transit time data measured by the position measuring unit 104 is obtained. Is transmitted to the information center 10 by the transmission / reception unit 108. At this time, an ID for identifying the own vehicle and the other vehicle is transmitted at the same time. Then, the information center 10 transmits the information received from the vehicle to the transmitting / receiving unit 1.
2 (Yes in step S101), and the
Send to 4. The communication between the information center 10 and the in-vehicle device 100 is performed by, for example, packet communication.

In the arithmetic processing unit 14 of the information center 10, the system control program 26 stored in the memory 18
Is running. Then, upon receiving the information, the route search program 20 stored in the memory 18 is stored in the C
The process is executed by the PU 16 to search for a route. That is, first, vehicle current position information, destination information, and route transit time information are extracted from the received information (step S103), and a destination is determined from the information (step S105). For example, when information such as a telephone number and an address is received as the destination information, the destination is determined using the destination setting data 38 of the database 30. At this time, the route transit time information is stored in the database 30 in the route transit time data 39.
Is accumulated as

Next, by the route search program 20,
A route from the current position of the vehicle to the destination is searched (step S107). The route search is performed with reference to the route search data 32 of the database 30, that is, the intersection data, the road data, and the node data. This route search processing is well-known, and is performed by a method disclosed in, for example, JP-A-1-173297 and JP-A-1-173298. To set the recommended route.

In this embodiment, each time a request is received from the vehicle, a route from the current position of the vehicle to the destination is searched. In the information center 10, the external information collection unit 40
Thus, road information and traffic information are acquired from the outside, and the database 30 is updated to the latest information by supplying route transit time data from another vehicle.
For this reason, by searching the route and calculating the estimated transit time for each request from the vehicle side, a recommended route based on the latest data, such as avoiding traffic congestion, guidance data, and the expected transit time are always provided to the vehicle side. Is done.

Next, the CPU 16 of the arithmetic processing unit 14 executes the segment processing program 22 stored in the memory 18 and divides the searched route into segments, which are navigation units (step S109). The unit of division is a fixed data size (for example, one segment is 1
024 bytes) and a fixed road length (for example, 2000 meters). All the searched routes are divided into, for example, a divided route 1 (section 1), a divided path 2 (section 2),... As shown in FIG. Each divided path is one segment. Each divided route data includes a data head, intersection information, road information, node information, landmark information, and the like, as shown in FIG.

The advantage of segmenting such data is that even if the communication between the center side and the vehicle side is interrupted, route guidance can be provided for the segment whose transmission has been completed at the time of the interruption. That is, it is only necessary to retransmit from the segment that was in the middle.
In other words, a segment is an information unit that can be decoded on the vehicle side. For example, if the route / guidance data of 10 km is transmitted to the vehicle as a whole as one file and cannot be decoded by the vehicle, route guidance cannot be performed for all of the 10 km. However, when the file is divided into segments each having a length of 2 km, a file can be decoded for each segment to provide route guidance.

Next, it is determined whether or not there is past route passage time data for the divided route (step S111). If there is data (Yes in step S111), the expected passage time is calculated by the estimated passage time calculation program 27 (step S113). If there is no data, skip this step and execute the next step (step
Yes in S111).

In the method of calculating the estimated transit time, when data in the same section overlaps, an average value of those values is obtained, and this is set as the expected transit time. In the stored data, the section for calculating the transit time differs depending on the vehicle that supplies the data.
Is edited to the required passage time, and the estimated passage time is set.

Next, it is determined whether traffic information is present for the next divided route (step S115). If the vehicle has come out (Yes in step S115), the estimated passage time is calculated again in consideration of the traffic information (step S117).
If no traffic information has been issued (N in step S115)
o), this step is not performed, and the next step is performed.

In step S117, the external information collecting unit 4
From 0, when information indicating that the divided section is congested is included, the estimated transit time may be calculated based on the most recently supplied data without calculating the average value. In the case of snow, the expected passage time may be set longer.

Next, the guidance data 34 for the divided route is retrieved from the database 30 and extracted (step S).
119), the route, the guidance data, and the estimated passage time are transmitted to the vehicle side (step S121).

The above operation will be described with reference to FIG.
Searched route L ₁ is divided into the divided path 9 ° from District 1, the vehicle M ₀ is illustrates a state that passes through the five wards. Other vehicle M ₁ passing through the same route, each divided path is set for each the vehicle, each time to request assistance data for a next divisional path supplies the transit time data to the center 10 I have. Also in the vehicle _{M 0,} 5
When passing through the ward, the passing time data of the 5
0. In the center 10, the vehicle M is supplied and accumulated from a number of vehicles, and based on the passage time data of the six wards.
Calculating a 6 ° estimated passage time of _0, with the route-guidance data for six wards, the vehicle M _0, and transmits the estimated passage time data.

Further, another operation example will be described with reference to FIG. Searched route M ₂ is divided into divided path 9 ° from District 1, 5 wards them and 6 ° has a path through the highway. The expressway is currently congested, and the fifth and sixth wards are included in the congested section. In the illustrated example, "between Tomei Atsugi-Numazu traffic jam" has the Tomei Expressway, searched route of the vehicle M ₀ is
This is the case where the route passes from Odawara through the foothills. In such a case, for example, even if information such as “Tomei Atsugi-Numazu congestion 4 hours” is obtained as traffic information, the transit time from Odawara to the base during the congestion is not known.

In such a case, if the passing time information of the 5th and 6th _sections of the many congested vehicles M1- _n is obtained, the passing times of the 5th and 6th _sections can be calculated relatively easily. can do.

<Operation on In-Vehicle Apparatus> Next, the operation of the in-vehicle apparatus 100 will be described. FIG. 6 is a flowchart illustrating the operation of the request / route guidance processing in the vehicle-mounted navigation device 100. The center 1
0, the current position information, the destination information, and the transit time information are transmitted (step S50). When the transmission / reception unit 108 receives the route / guidance data and the estimated transit time data from the information center 10 (Yes in step S52), the arithmetic processing unit 101 stores the received route / guidance data 160 in the memory 102. Then, the route guidance program 150 stored in the memory 102 is executed, and guidance using the received route / guide data 160 is performed (step S54). That is, the map and the landmark of the route, the estimated transit time of the divided route (or the time required to reach the destination, the time of arrival at the destination) are displayed on the display unit 106, and are also applicable when turning right or left at an intersection. The voice guidance to be output is output from the voice output unit 107.

At the same time, the arithmetic processing section 101 refers to the current position of the vehicle in the position measuring section 104 and executes the data request program 152. Then, when the current position of the vehicle becomes a position at a fixed distance (for example, 200 m before) from the end of the received route, a request for the next route / guidance data is made (Yes in step S56),
At the same time, the route transit time calculation program 155 is executed to calculate the transit time in the divided route. Then, processes such as route search, segment division, extraction of guidance data, and calculation of expected transit time based on the transmission in step S50 described above are performed in the information center 10, and the obtained route / guide data and expected transit time are mounted on the vehicle. Sent to device 100. On the other hand, when the request is not made (N in step S56)
o) Further, it is determined whether or not all the route / guidance data to the destination has been received (step S58). If all the data has been received, the operation is terminated.

FIG. 7 shows an example of data exchange between the information center 10 and the on-vehicle apparatus 100 described above. First, as shown by the arrow F1, the vehicle-mounted device 100 notifies the information center 10 of the current position, destination, and passing time data. In the information center 10, as shown by an arrow F2, a route search, segment division, and expected transit time calculation are performed based on the received data. Then, as shown by the arrow F3, the obtained route / guidance data and the estimated passage time are transmitted to the vehicle. In the in-vehicle device 100, as indicated by an arrow F4, route guidance and the estimated passage time are displayed based on the received route / guidance data. Route / guidance data that is no longer needed is discarded. Here, when the continuation data of the route guidance becomes necessary, the information center 10 is again notified of the current position, the destination, and the transit time of the divided route, as indicated by the arrow F5. Thereafter, the same operation is repeatedly performed until reaching the destination. Note that, as described above, the center 1
Even while communication is being performed between 0 and the in-vehicle device 100, the transit time data of the same route is accumulated from other in-vehicle devices, and a more accurate estimated transit time can be calculated.

As described above, the present embodiment has the following effects.

(1) Data of the time actually required to pass the vehicle (moving side) actually passing the searched route is accumulated, and the estimated passing time can be calculated from the accumulated data. It is possible to provide an estimated transit time that matches the actual conditions of the route.

(2) Since passing time data is always supplied from the moving side, it is possible to calculate an estimated passing time according to a change in the route condition in real time. In addition, a new expected transit time is notified each time route / guidance data is requested, so that even if a sudden change occurs in the route situation such as traffic congestion, the expected transit time can be calculated according to the change. .

(3) Since transit time data from a large number of moving sides can be accumulated, it is possible to suppress variation in data and calculate a more accurate predicted transit time.

The present invention has many embodiments, and various modifications can be made based on the above disclosure. For example, the following is also included.

(1) In the above embodiment, the passing time data supplied from the moving side is stored in the center 10 as it is. Each time it is supplied, the estimated passing time is calculated based on the data. It may be configured to calculate and store it in a database.

(2) Alternatively, the estimated passing time of the divided route may be calculated and displayed as the time of arrival at the destination instead of displaying it as it is.

[0053]

As described above, according to the present invention,
The following effects are obtained.

(1) Data of the time actually required for passing from the moving side actually passing through the searched route is stored in the center side, and the estimated passing time can be calculated from the stored data. It is possible to provide an estimated transit time that matches the actual conditions of the route.

(2) Since the passing time data is always supplied from the moving side, it is possible to calculate the estimated passing time according to the change of the route condition in real time. Further, for example, if the configuration is such that the expected transit time is calculated based on new data each time route / guidance data is requested, it is possible to calculate the expected transit time according to a sudden change in the route condition.

(3) Since transit time data from a large number of moving sides can be accumulated, it is possible to suppress variation in data and calculate a more accurate predicted transit time.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment of the present invention.

FIG. 2 is a flowchart showing an operation of a route search and guidance data transmission process on the center side.

FIG. 3 is a diagram illustrating an example of division of a searched route and contents of each divided route information.

FIG. 4 is a diagram showing a relationship between communication timing between a mobile side and a center side and a divided route in a search route.

FIG. 5 is a diagram showing a relationship between communication timing between a mobile side and a center side and a divided route in a search route.

FIG. 6 is a flowchart showing the operation of a request and route guidance process on the vehicle side.

FIG. 7 is a diagram showing how data is exchanged between a vehicle and a center.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Information center 12 ... Transmission / reception part 14 ... Operation processing part 18 ... Memory 20 ... Route search program 22 ... Segment processing program 24 ... Guidance data extraction program 25 ... Communication judgment program 26 ... System control program 27 ... Expected passage time calculation program 29 ... Extraction guidance data 30 ... Database 32 ... Route search data 34 ... Guide data 36 ... Communication area data 38 ... Destination setting data 39 ... Route transit time data 40 ... External information collection unit 100 ... In-vehicle navigation device 101 ... Computation Processing unit 102 Memory 102A Program storage area 102B Data storage area 104 Position measuring unit 105 Input unit 106 Display unit 107 Voice output unit 108 Transmitting and receiving unit 150 Route guidance program 152 Data request program 154 ... control program 155 ... path transit time calculation program 160 ... route-guidance data 162 ... ID data 164 ... vehicle position data 165 ... path transit time data L ... searched route

────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] February 7, 2000 (2000.2.7)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claim 2

[Correction method] Change

[Correction contents]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] Claim 6

[Correction method] Change

[Correction contents]

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0010

[Correction method] Change

[Correction contents]

[0010] (2) Further, the navigation method according to (1) comprising a fourth step of correcting the estimated passage time have groups Dzu the current traffic information acquired.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0014

[Correction method] Change

[Correction contents]

(6) A navigation system that generates a search route from the start position to the end position of navigation and its guide data on the center side, divides the generated data, and sends the search route and the guide data to the requesting mobile side. in has a storage means for storing transit time information supplied from the mobile side of the searched route, the predicted passage time calculating means for have groups Dzu the accumulated transit time information to anticipate the current transit time, A navigation system characterized in that an estimated transit time is sent to a mobile side together with a generated search route and guidance data.

[Procedure amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0019

[Correction method] Change

[Correction contents]

The memory 18 includes a route search program 20 for searching for a route from the current position of the vehicle (the navigation start position or the departure point) to the destination (the navigation end position), segmentation of the searched route, and a vehicle. Segment processing program 22 for setting the road length to be transmitted to the side, guidance data extraction program 24 for searching for, extracting and editing guidance data corresponding to the set road length, and communication determination program for determining whether data transmission is appropriate 25, a system control program 26 for controlling and managing the entire operation, based on accumulated route transit time data.
And have Dzu, such as the estimated passage time calculation program 27 for calculating the estimated transit time of the searched route, various programs executed by the information center 10 is stored. The memory 18 also has a working area used for executing those programs.

[Procedure amendment 6]

[Document name to be amended] Statement

[Correction target item name] 0038

[Correction method] Change

[Correction contents]

In step S117, the external information collecting unit 4
0, if the divided sections is in the information with the traffic congestion is not an average value, may be determined estimated passage time have <br/> group Dzu most recently supplied data. In the case of snow, the expected passage time may be set longer.

[Procedure amendment 7]

[Document name to be amended] Statement

[Correction target item name] 0051

[Correction method] Change

[Correction contents]

[0051] (1) In the aforementioned embodiment, the passage time data supplied from the mobile side, the center 10, but had accumulated as it is, each time it is supplied, the expected transit time and have groups Dzu to the data It may be configured to calculate each time and store it in the database.

[Procedure amendment 8]

[Document name to be amended] Statement

[Correction target item name] 0055

[Correction method] Change

[Correction contents]

(2) Since the passing time data is always supplied from the moving side, it is possible to calculate the estimated passing time according to the change of the route condition in real time. Further, for example, every request a route-guidance data, with the configuration for calculating the estimated passage time have groups Dzu to new data,
It is also possible to calculate an estimated transit time according to a sudden change in route condition.

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Hiroyuki Yawata 2-19-12 Sotokanda, Chiyoda-ku, Tokyo F-term in Equos Research Co., Ltd. 2C032 HB24 HB25 HD04 HD13 HD16 HD23 2F029 AA02 AB01 AB07 AB09 AC01 AC02 AC04 AC18 AD01 5H180 AA01 BB05 FF04 FF05 FF12 FF13 FF17 FF22 FF25 FF27 FF33

Claims (7)

[Claims] 1. A navigation method that divides route / guidance data of a search route from a start position to an end position of a navigation, sends the divided data to a moving side from a sending side, and performs route guidance on the moving side based on the data. A first step of dividing the searched route into segments set in advance, a second step of storing passage time information of the route supplied from the moving side, and a step of storing the stored past passage time information. A third step of estimating a current route transit time. 2. The navigation method according to claim 1, further comprising a fourth step of correcting an estimated transit time based on the acquired current traffic information. 3. A navigation route providing device that transmits individual divided routes obtained by dividing a route to be guided to a moving side that has requested a route acquisition at a different position, and that is transmitted from another moving side. Receiving means for receiving the obtained route transit time information, accumulating means for accumulating the acquired route transit time, expected transit time calculating means for estimating the current route transit time from the accumulated past route transit time, A transmission means for transmitting the estimated passage time information to the moving side of the transmission source of the route acquisition request. 4. The navigation route provision according to claim 3, wherein the estimated passage time calculation means estimates the route passage time based on the latest data every time there is a request for route / guidance data from the moving side. apparatus. 5. A transmission means for requesting a search route and its guidance data from a start position to an end position of navigation to a center side, and a search route generated on the center side and a data obtained by dividing the guide data. Receiving means for sequentially acquiring from the side, route passing time calculating means for calculating the passing time of the route, and expected passing time notifying means for notifying the expected passing time of the route sent from the center side. A mobile object in navigation, wherein the transit time calculated by the transit time calculating means is simultaneously transmitted, and the expected transit time of the route calculated on the center side is simultaneously received at the time of receiving the search route and its guidance data. 6. A navigation system which generates a search route from a start position to an end position of navigation and its guidance data on the center side, divides the generated data, and sends the search route and the guidance data to the requesting mobile side. A storage means for storing transit time information supplied from the moving side of the searched route; and a predicted transit time calculation means for predicting a current transit time based on the stored transit time information. A navigation system characterized in that an estimated transit time is sent to a mobile side together with a searched route and guidance data. 7. The navigation system according to claim 6, wherein the expected transit time calculating means calculates the expected transit time also in consideration of the acquired current traffic information.