DE102014210496A1 - Method for operating a navigation device of a destination vehicle to be navigated to a destination point, navigation device for a destination vehicle to be navigated to a destination point, and measuring device for a vehicle - Google Patents

Abstract

The present invention provides a method for operating a navigation device (10) of a target vehicle (ZF) to be navigated to a destination point (T), a navigation device (10) and a measuring device (11). The method according to the invention comprises the steps of: detecting (S01) a brightness value of light (L) incident on a starting vehicle (AF) by means of a brightness detection device (12); Detecting (S02) a home vehicle position (AP) of the host vehicle (AF) by means of position detecting means (14) of the host vehicle (AF) within a predetermined time period for detecting (S01) the brightness value; Detecting (S03) a time within the predetermined period by means of a time detecting means (16); Transmitting (S04) the detected brightness value, the detected starting vehicle position (AP) of the starting vehicle (AF) and the detected time to a computing device (S); Detecting (S05) a destination (T); Determining (S06) routes (R1, R2) along which the target vehicle (ZF) is navigable to the destination (T); and creating (S07) an evaluation of the determined routes (R1, R2) with respect to a glare probability for a driver of the target vehicle (ZF) and / or for an optical sensor of the target vehicle (IF) based at least on the detected brightness value, the detected home vehicle position and the recorded time.

Description

The present invention relates to a method for operating a navigation apparatus of a target vehicle to be navigated to a destination, a navigation apparatus for a target vehicle to be navigated to a destination, and a measuring apparatus for a vehicle.

A target vehicle in the present application is understood to mean that a vehicle designated as a target vehicle is to be navigated to a destination point, wherein the target vehicle is distinguished from a vehicle designated as a starting vehicle, which provides sensor data, but need not itself be able to navigate to the destination point. However, a starting vehicle can also act as a target vehicle in the sense of this application, if it is to navigate to a destination.

A "navigation" is to be understood in particular that pertinent instructions for controlling the target vehicle are output to the destination point, for example as visual or audible indications to a driver of the vehicle. However, the "navigation" of the target vehicle should also be understood to mean that the target vehicle can be steered automatically to the destination point. In particular, the vehicle may be a road vehicle, for example a car, a truck or a motorcycle, an aircraft, for example an aircraft or a helicopter, a watercraft, for example a ship or even a rail vehicle, for example a train. The navigation device may be for a road vehicle, for example, a street navigation system ("Navi"), for example, an aircraft may be an autopilot.

Furthermore, it should be understood that forecasts which are mentioned in the present application often only apply with a certain probability of occurrence, wherein the probability of occurrence can be taken into account when using the corresponding prognosis. Such forecasts may, for example, be predictions of travel time durations, weather forecasts, etc.

State of the art

There are often different routes available for navigating a target vehicle to a desired destination. Conventional navigation devices, which are often used for navigating the target vehicle to the destination point, usually take into account external parameters such as speed limits along the routes, a traffic situation along at least one of the routes, route lengths of the routes etc. based on an evaluation of the available routes On the first evaluation of the routes, a selection of the available routes together with the respective evaluation can be presented to a driver of the destination vehicle.

Depending on, for example, a position of the sun along at least one of the routes, the driver of the destination vehicle may be blinded by a light source when the target vehicle is being controlled.

In the DE 10 2012 203 214 A1 For example, a method for detecting a dazzling of a driver of a first vehicle by an incorrectly set lighting device of a second vehicle is described. The presence of glare is detected by an optical light sensor. If a glare is detected, a warning message is sent to the second vehicle if a given glare criterion is met. The glare criterion may, for example, be a threshold for light intensity and / or for a duration of the predetermined light intensity.

Disclosure of the invention

The present invention discloses a method having the features of claim 1, a navigation device having the features of claim 9 and a measuring device having the features of claim 11.

Accordingly, a method is provided for operating a navigation device of a destination vehicle to be navigated to a destination, comprising the steps of: detecting a brightness value incident on a starting vehicle by means of a brightness detection device of the starting vehicle; Detecting a home vehicle position of the host vehicle by means of a position detector of the host vehicle within a predetermined time period for detecting the brightness value; Detecting a time within the predetermined period by means of a time detecting means; Transmitting the sensed brightness value, the detected home vehicle position of the host vehicle and the detected time to a computing device; Detecting a destination at which the target vehicle is to be navigated; Determining routes along which the target vehicle is navigable to the destination; and providing an assessment of the determined routes regarding a glare probability for a driver of the target vehicle and / or for an optical sensor of the target vehicle based at least on the detected brightness value that has been detected Home vehicle position and the detected time.

Under a time should be understood in particular a time and / or a calendar date.

A glare probability should be understood as a probability that the driver of the target vehicle and / or the optical sensor are blinded by one or more light beams. It can be provided that a light beam incident on an eye or a sensor opening of the optical sensor is regarded as dazzling only if the brightness, i. Light intensity, of the incident light beam exceeds a predetermined brightness minimum value and / or if a duration of the incident on the eye or the sensor opening exceeds a predetermined light incident duration minimum value and / or if a wavelength of the incident light beam within a perceptible from the eye or the sensor opening wavelength range lies. The optical sensor, for example, a camera, an infrared sensor, or the like. be.

For a road vehicle, a particular route should be understood as meaning a multiplicity of interconnected roads.

Furthermore, a navigation device for a vehicle is provided with: a destination detection device, by means of which a destination at which the destination vehicle is to be navigated can be detected; a route determination device, by means of which routes along which the vehicle can be navigated to the destination can be determined; an evaluation device, by means of which an evaluation of the determined routes with respect to a glare probability for a driver of the target vehicle and / or for an optical sensor of the target vehicle can be created; wherein the evaluator is configured to evaluate the light based on a brightness value on a source vehicle; and based on a home vehicle position of the host vehicle within a predetermined time period for detecting the brightness value; and based on a time within the predetermined time period to create; and an output device, by means of which the driver of the target vehicle at least one of the determined routes and information about the evaluation of at least one of the determined routes can be output.

Furthermore, a measuring device for a starting vehicle is provided with: a controllable brightness detection device, by means of which a brightness value can be detected on light incident on the starting vehicle; a controllable position detection device, by means of which a starting vehicle position of the starting vehicle can be detected; a controllable time-detecting device, by means of which a time can be detected; a controllable transmission device, by means of which the detected brightness value, the detected starting vehicle position of the starting vehicle and the detected time can be transmitted to a computing device; and a control device, by means of which at least the brightness detection device, the position detection device, the time detection device and the transmission device are controllable.

Advantages of the invention

The finding on which the present invention is based is that the time of day and the calendar date can be increased at different positions along routes, a glare probability for a driver of the target vehicle and / or for an optical sensor of the target vehicle, the glare probability also being dependent on a respective building situation along the Route depends. In particular, glare probabilities are taken into account, which go back to substantially calculable light sources. Such a calculable light source may be, for example, a street lamp, which is calendar-dependent and time-dependent activated, and which blinds drivers of a vehicle who are traveling at a certain time on a particular street near the street lamp. Such a light source may in particular also be the sun, which transmits light beams to specific positions at specific angles depending on the time and date, as a result of which drivers of vehicles can also be dazzled. A pure knowledge of the position of the sun based on the time of day and the date is often insufficient, especially in cities, since the complex development situation with houses that throw shadows, gaps between houses, reflective facades, etc. results in a complex situation.

The idea on which the present invention is based is to take this knowledge into account and to obtain information detected by one or more starting vehicles which indicate a glare probability at a specific starting vehicle position of the starting vehicle at a specific point in time in order to operate a navigation device of a destination vehicle navigating to a destination point use. In particular, a database can be continuously constructed in a computing device, which should be as broad as possible for as many possible routes as possible to all possible destinations as well as possible calendar date-dependent glare probabilities, wherein the database is queried by navigation devices.

For a driver of a target vehicle to be navigated at a destination point, if there are several possible routes to the destination point, an assessment of the respective glare probability along the routes can be generated and / or retrieved by means of the navigation device of the destination vehicle. Typically, navigation devices are also designed to predict when the target vehicle will be at which position along a selected route to the target point. This predicted time can be used to evaluate the glare probability along the route. For example, at 3:00 pm, the driver can select a route that will take him through Berlin for about an hour, predicting that the driver will approach the Brandenburg Gate from the west with the target vehicle at 15:30. In the database can be stored that results for a driver in a vehicle that approaches the Brandenburg Gate from the west, at 15 o'clock, a very low probability of glare, while at about 15.30 clock results in a relatively high probability of glare. Thus, the route selected by the driver can be evaluated as a route with an increased glare probability.

The computing device may in particular be a central cloud-i. Internet-based computing device with a database act. Alternatively or additionally, computing devices may also be provided with databases in each of the individual target vehicles. In particular, a multi-dimensional map of aggregated data sets can be created in the computing device, which comprises brightness values as a function of a position along a route and as a function of a time and possibly of a calendar date.

Advantageous embodiments and further developments emerge from the dependent claims and from the description with reference to the figures.

According to a preferred embodiment, the detection of the brightness value, the detection of the starting vehicle position and / or the detection of the time is repeated, in particular regularly or continuously, carried out, advantageously in each case simultaneously. This makes the measurement of routes more accurate with respect to their glare probability and makes the assessment of the glare probability more accurate.

According to a further preferred development, the detection of the brightness value, the detection of the starting vehicle position and / or the detection of the time point are performed by a plurality of starting vehicles. This makes the measurement of routes more accurate with respect to their glare probability and makes the assessment of the glare probability more accurate.

According to a further preferred refinement, from the detected brightness values, the detected starting vehicle positions and the detected times, a database with average brightness values is formed at the detected starting vehicle positions at the detected times. In each case a brightness value, a starting vehicle position and a time, which are connected to one another by simultaneous or similar detection, can form a data record, here as a 3-tuple, within the database. The assessment can be created using information from the database. In doing so, values derived from the records within the database can be calculated as averages, using the derived quantities to create the score.

Multiple records in the database can also be clustered, spatially and / or temporally. This allows an efficient balance of existing data volume and precision adjustable.

According to a further preferred refinement, the navigation device of the target vehicle automatically navigates the target vehicle along a route which is preferred according to the created evaluation to the destination, in particular along a route with the lowest glare probability.

According to a further preferred development, the method comprises the steps of: detecting a starting vehicle orientation of the starting vehicle by means of an orientation detecting device of the starting vehicle within the first time period; Transmitting the detected home vehicle orientation to the computing device; wherein the assessment is still made using the detected home vehicle orientation. As a result, the glare probability can be evaluated even more accurately. After detecting the starting vehicle alignment, 4-tuples can be formed and stored in the database, with each of the 3-tuples described above still being given a starting vehicle orientation detected at the same time or in terms of time.

According to a further preferred refinement, individual parameters of the target vehicle are furthermore used to create the rating; wherein the individual parameters of the target vehicle include a tint of a target vehicle's disc, a tintability of a target vehicle's disc, a driver's altitude above the ground in the target vehicle, a sensor position of an optical sensor of the target vehicle on the target vehicle, and / or a user's default. Thus, the creation of the rating can be varied. For example, a brightness value that results in a blinding of the driver for a starting vehicle with a non-tinted lens for the target vehicle with approximately tinted glass but not blinding the driver may not be considered as dazzling for the target vehicle.

According to a further preferred development, external parameters are furthermore used to create the evaluation; wherein the external parameters include current and / or predicted weather conditions along the determined routes. In particular, the cloudier the weather situation can be predicted, the lower the risk of glare. For example, it can be predicted by a weather service that a dense cloud cover will be available within a radius of ten kilometers around the Brandenburg Gate at 15:00. Even if a determined route through the Brandenburg Gate at the Brandenburg Gate is initially assessed as having an increased glare probability, the rating may be reduced to a low glare probability if the target vehicle is expected to travel around the determined route approximately the Brandenburg Gate will happen at 15:00.

According to a preferred embodiment, the navigation device according to the invention comprises a communication device, by means of which information can be called up from an internal or external database, which information is retrievable on the brightness value of the light striking the starting vehicle; and at the home vehicle position of the host vehicle within the predetermined time period for detecting the brightness value; as well as being based on the time within the predetermined time period. As described above, these may be derived quantities such as average values.

According to a further preferred development, the measuring device according to the invention comprises a controllable alignment detection device, by means of which a starting vehicle orientation of the starting vehicle can be detected; wherein the alignment detecting means is controllable by the control means; and wherein the detected starting vehicle orientation of the starting vehicle can be transmitted to the computing device by means of the transmission device.

Brief description of the drawings

The present invention will be explained in more detail with reference to the embodiments illustrated in the schematic figures of the drawings. Show it:

1 12 is a schematic flowchart for explaining a method of operating a navigation apparatus of a target vehicle to be navigated at a destination in accordance with a first embodiment of the present invention;

2 a schematic road scene for explaining the method according to the first embodiment of the present invention;

3 a schematic block diagram of a measuring device of a starting vehicle according to a third embodiment of the present invention;

4 a schematic block diagram of a navigation device according to a fourth embodiment of the present invention; and

5 12 is a schematic flowchart for explaining a method of operating a navigation device of a target vehicle to be navigated at a destination point according to a fifth embodiment of the present invention.

In all figures, the same or functionally identical elements and devices - unless otherwise stated - provided with the same reference numerals. The numbering of steps of a method is not necessarily intended to imply a chronological order; In particular, several steps can also be carried out simultaneously.

Description of the embodiments

1 FIG. 12 is a schematic flowchart for explaining a method of operating a navigation apparatus. FIG 10 a target vehicle ZF to be navigated at a destination point T according to a first embodiment of the present invention. The method according to the first embodiment will also be described below with reference to the following 2 to 4 and reference numerals occurring therein are described.

2 shows a schematic road scene, based on which the method according to the first embodiment will be explained in more detail.

In a step S01, a brightness value is applied to a light L incident on a home vehicle AF by means of a brightness detection device 12 of the starting vehicle AF detected. Im in 2 In the case shown, the light L emanates from the sun as the light source LQ. The starting vehicle AF is located to the in 2 displayed time at a home vehicle position AP.

Through a gap K between a first building complex G1 and a second building complex G2, the light L from the sun strikes the starting vehicle AF.

In the brightness detection device 12 The starting vehicle AF can be, for example, a specially designed light sensor. The brightness detection device 12 However, it can also be embodied as a mobile telephone which is designed and / or programmed for detecting the brightness value of light impinging on the mobile telephone, for example by means of a computer program executed by the mobile telephone, for example an app.

The brightness detection device 12 is preferably arranged on the starting vehicle AF such that a relatively high brightness value is detected when a driver of the starting vehicle AF is blinded with a relatively high probability. The brightness detection device 12 may be arranged such that an average driver with an average stature and average seat settings for a driver's seat of the host vehicle AF is blinded upon detecting the brightness value above a first brightness value threshold.

Alternatively, in arranging the brightness detection means 12 Also, individual parameters of the driver, who steers the starting vehicle AF, are taken into account, for example, an eye level of the driver depending on the seat adjustment of the driver's seat of the home vehicle AF storable by a storage device of the home vehicle AF and the brightness detection device 12 be available. The brightness detection device 12 can be set in dependence on the individual driver parameters such that, when measuring the brightness value above the first brightness value threshold with a predetermined minimum probability, the driver whose individual parameters were stored is also blinded. The brightness detection device 12 In particular, it may also be designed such that the adjustment takes place automatically.

Alternatively or additionally, by means of a setting detection device 13 at least one setting in the starting vehicle AF can be detected by the starting vehicle AF, wherein, based on the detected at least one setting, an advantageous repositioning of the brightness detection device 12 indexed or automatically repositioning the brightness detector 12 is carried out. The detected setting may be, for example, the seat adjustment of the driver's seat of the starting vehicle F. That of the attitude detector 13 recorded settings can be detected by a user input and / or automatically.

By means of the setting detecting means 13 For example, it is also possible to detect a permanent and / or current tinting of a pane of the starting vehicle F through which the light L is traveling on the way to the brightness detection device 12 must pass through. The detected brightness value can thus optionally be replaced by an effective brightness value, which corresponds to a brightness value of the same light beams L, if they had passed through a disc having a predetermined average tint, in particular without tinting, instead of passing through the disc with the current tint. Thus, it can be considered that a detected brightness value for the target vehicle, which does not have a disc with the current tint, includes an increased glare probability. In the following, the detected brightness value is always spoken of, but it should be understood that the detected brightness value for one or more or all starting vehicles AF can also be replaced by the described effective brightness value.

In a step S02, the home vehicle position AP of the host vehicle AF is detected by means of position detecting means 14 of the starting vehicle AF detected. The position detection device 14 For example, it may be part of a home vehicle navigation device of the host vehicle F. The detection S02 of the home vehicle position AP takes place within a predetermined time period to detect the brightness value, preferably within a short period, for example a period shorter than 5 minutes or 1 minute, preferably a period shorter than 30 seconds, in particular within a period shorter than 10 seconds, more preferably simultaneously with the detection S01. This results in a close temporal correlation between the brightness value and the starting vehicle position AP of the starting vehicle AF.

In a step S03, a time within the predetermined period by means of a Time detection device 16 detected. According to the first embodiment, the time detecting means 16 formed in the home vehicle AF. Preferably, the detection of the time occurs simultaneously with the detection S01 of the brightness value and / or the detection S02 of the home vehicle position AP. The detection S02 of the starting vehicle position AP can optionally also be based on the detected time as well as on an information which describes all the starting vehicle positions AP of the starting vehicle AF in the past in a time-dependent manner. In this case, the predetermined period within which the detection S02 of the home vehicle position AP can be made may also be made larger, for example one hour or more, taking into account a period of time, such as the information on the past home vehicle positions Reserved AP of the starting vehicle AF.

In a step S04, the detected brightness value, the detected starting vehicle position of the starting vehicle AF and the detected time are transmitted to a computing device S. According to the first embodiment, this is done by means of a communication device 19 the starting vehicle F, which in particular has a wireless communication interface, for example radio, WLAN, etc. According to the first embodiment, the computing device S is designed as a cloud-based computing device, for example as a server permanently connected to the Internet. The detection S01 of the brightness value, the detection S02 of the starting vehicle position AP and the detection S03 of the time point and the transmission S04 are advantageously carried out as described by a plurality of starting vehicles AF as well as by each individual starting vehicle AF regularly, particularly preferably continuously. In this way, a first multiplicity of mutually correlated brightness values, starting vehicle positions and times can be collected at the computing device S.

In an optional step S08, within the first period, preferably simultaneously with the detection S02 of the starting vehicle position AP of the starting vehicle AF, a starting vehicle orientation AA of the starting vehicle AF is measured. According to the first embodiment, this is done by means of an alignment detection device 15 of the starting vehicle AF. Upon detecting S08 of the host vehicle orientation AA, either a precise orientation vector of the host vehicle AF relative to a geographical location can be determined. Alternatively, the detected home vehicle orientation AA may include only information on which of a plurality of possible directions the originating vehicle AF is moving at the home vehicle position AP. At the in 2 As illustrated, the home vehicle AF moves at the home vehicle position AP on a road with two possible directions, in the example shown in the direction of the destination point T to.

In an optional step S09, the optionally detected starting vehicle orientation AA is transmitted to the computing device S.

Based on the first multiplicity of the brightness values correlated with each other, initial vehicle positions AP and times, a database DB is created by means of, preferably also, the computer device S, which records, as data sets, here approximately as 3-tuples, the detected, correlated brightness values, starting vehicle Position includes AP and times and / or based on these derived variables. If the starting vehicle orientation AA is also detected, 4-tuples are created as data sets which in each case comprise the brightness values correlated with one another in time, initial vehicle positions AP, home vehicle alignments AA and times.

The data sets can be used to cluster both spatially and temporally. In the temporal clustering, the continuous time of a day may be divided into first time periods within which no distinction is made between detected times that fall within a certain period of time. For example, a certain period of time may extend from 6:00 pm to 6:05 pm. For example, records that have a detected time of 6:02 pm, for example, will not be distinguished in time from datasets that have a sensed time of 6:04 pm, for example. The twenty-four hours of a day can be subdivided into equally long first periods of time. Alternatively, the 24 hours of a day can also be divided into different lengths of first time periods. For example, at times at which relatively large changes in brightness values are to be expected in a short time, manually or automatically relatively shorter first time periods may be provided, for example at times of sunrise or sunset. This can also be adjusted automatically depending on the calendar date. Likewise, at times when rather rapid changes in brightness values are to be expected, for example, between sunset and sunrise, by hand or automatically relatively longer periods of time may be provided, for example, a period of one hour or more.

A second temporal clustering can be performed in relation to a calendar date of the recorded times. For this purpose, the year can be divided into second periods, for example, second periods of five or fifteen days or one month. The second time segments may also be divided into the same length or with different lengths, wherein a length of one of the second time segments may depend on the temporal position of the second period in the course of the year. The division of the twenty-four hours of the day into the first time periods may also be based on the time position of the corresponding day during the course of the year, taking into account in particular in which of the second time periods the day to be subdivided into the first time periods falls.

It can also be provided that a first or second time segment is subdivided further automatically, for example into two, first or second time segments, when a variance of the brightness values lying in the corresponding first or second time segment exceeds a predetermined brightness variance maximum threshold value. Likewise, a plurality of first or second time segments can be combined automatically if a variance of the brightness values assigned to the plurality of first and second time segments falls below a predetermined first or second brightness variance minimum threshold value. In this way, the first and / or second time intervals can be adjusted automatically based on the first or second brightness variance maximum threshold and the minimum brightness variance threshold, respectively, such that a suitable balance between precision and available data amount is taken per first and / or second time period.

Analogous to the temporal clustering, a spatial clustering can be carried out, according to which routes are divided into sections, with a single section all those data sets, here 3-tuple from detected brightness values, home vehicle positions AP and times are allocated, their home vehicle position AP lies within the individual route section. Between the data sets which are allocated to the individual route section, no distinction is made with respect to the starting vehicle position AP.

A spatial length of the sections can be chosen the same for all routes. Alternatively, the routes can also be subdivided into route sections of different lengths, wherein the length of the individual route sections can be based on how much brightness values in the surroundings of the route section change in a location-dependent manner. Analogously, the length of at least one route section can also be adapted automatically by subdividing the route section into a plurality of, for example two, route sections if the variance of the brightness values allocated to the route section exceeds a third brightness variance maximum threshold value. Likewise, two or more adjacent links may automatically be aggregated if the brightness values assigned to the two or more adjacent links have a variance less than a third minimum brightness threshold.

Similarly, clustering may also be performed with respect to the detected home vehicle orientations AA by having all of the home vehicle alignments AA approximately one of two directions parallel to a road or route in which the home vehicle correlated with the home vehicle orientation AA is in a dataset. Position AP is included, to be allocated.

In a step S05, a destination T is detected at which the target vehicle ZF is to be navigated. According to the first embodiment, this is done by means of a destination detection device 20 a navigation device 10 of the target vehicle ZF, for example by a user input.

At the in 2 illustrated situation, there are two routes R1, R2 from a current position ZP of the target vehicle ZF to the destination point T.

In a step S06, the routes R1, R2 along which the target vehicle ZF is navigable to the destination T are determined. According to the first embodiment, this is done by means of a route determination device 22 the navigation device 10 of the target vehicle ZF. When determining S06, further route parameters of the determined routes R1, R2 are advantageously also determined. The route parameters record, for example, a route length of the routes R1, R2, an expected duration for the navigation of the destination vehicle ZF to the destination T along the routes R1, R2, wherein a current traffic situation and / or a construction site situation can be taken into account.

In a step S07, an evaluation of the determined routes R1, R2 with respect to the glare probability for the driver of the target vehicle ZF is generated. The creation S07 of the evaluation is performed based at least on the detected brightness value, the detected home vehicle position AP and the detected time, optionally additionally based on the detected home vehicle orientation AA.

For the creation S07 of the evaluation, the detected brightness value, the detected home-vehicle position AP and the detected time, in particular the first plurality of the correlated brightness values, home-vehicle positions AP and times, may be determined by means of a communication device 28 the navigation device 10 , by the computing device S, in particular from a database DB of the computing device S, are retrieved. The retrieval takes place advantageously wirelessly, for example via radio or WLAN. Is the computing device S a part of the navigation device 10 , the retrieval can also be done by wire.

The determination S07 of the evaluation is advantageously carried out on the first plurality of correlated brightness values, home vehicle positions AP and times, at least insofar as the data sets of the first plurality relate to the determined routes R1, R2. A data record relates to a route R1, in particular if the starting vehicle position AP of the data record lies along the route R1. Furthermore, it can be provided that a data record is taken into account only if the time contained in the data record lies within a determined time duration for navigating the target vehicle ZF to the destination T along the route R1 by a current time at which the route R1 determines becomes. If, for example, it is determined at 15 o'clock, that is to say that according to the determined first route R1 the time of navigation along the first route R1 will be one hour, that is to say that the target vehicle IF will navigate along the first route R1 at 16 o'clock on Destination point may arrive, it can be provided that only those records are included in the creation S07 of the evaluation, which contain a time, which is between 15 o'clock and 16 o'clock.

The calculation S07 of the evaluation of the determined routes R1, R2 can be carried out using the detected starting vehicle orientations AA, for example such that only those data records are taken into account in the creation S07 of the evaluation which have a detected starting vehicle orientation AA, which corresponds to a expected orientation of the target vehicle ZF is similar or identical, which assumes the target vehicle ZF according to the determined routes R1, R2 at the home vehicle position AP, which has the corresponding record.

The determination S07 of the evaluation of the determined routes R1, R2 according to the first embodiment takes place particularly advantageously based on average values derived from the data records in the database DB for the clustered first and second time segments and the clustered route segments.

For example, as part of the creation S07, the glare probability of route R1 should be evaluated. Among other things, the probability of glare at the Brandenburg Gate should be taken into account, which, according to the navigation device's forecast 10 according to the route R1, the target vehicle ZF passes at about 15:13 on a sixth of June from the west. For example, the year is subdivided into the second epoch so that the sixth of June is included in the second epoch, which runs from the first of June to the fifteenth of June. For example, for this second time period, each day is subdivided into the first time periods such that the data sets of the database are clustered for periods between 12:00 and 18:00 in first time periods of thirty minutes each.

Thus, to determine the glare probability at the Brandenburg Gate, the average brightness value for the home vehicle orientation AA will be substantially - from west to east in the first period between 15:00 and 15:30 and in the second period between the first and second fifteenth of June and in the stretch of road in which the Brandenburg Gate lies. For the evaluation of the route R1, the glare probability for all route sections of the route R1 for each of the predicted times at which the destination vehicle according to the route R1 in the corresponding route section will be determined, and from the total glare probability for the route R1 determined.

According to the first embodiment, furthermore, the determined routes R1, R2 are output to the driver of the destination vehicle ZF by means of an output device together with the created evaluation of the determined routes R1, R2. The output device 26 can be configured for example as a screen and / or as a voice output. The driver of the target vehicle ZF can thus choose, for example, whether the target vehicle ZF is to be steered according to the first determined route R1 or according to the second determined route R2, wherein the glare probability for the driver of the target vehicle ZF according to the first route R1 is rated higher than that Dazzling probability for the driver of the target vehicle ZF according to the second route R2. It can also, for example by means of a graphic, the driver by means of the output device 26 a quantitative indication is output as to how much the first glare probability according to the first route R1 differs from the second glare probability according to the second route R2.

3 shows a schematic block diagram of a measuring device 11 a host vehicle AF according to a third embodiment of the present invention. The functions as well as possible variants of the individual elements of the measuring device 11 have already been mentioned above, in particular in connection with the method according to the first embodiment with reference to 1 and 2 described in detail.

According to 3 points the measuring device 11 of the host vehicle AF, the controllable attitude detecting means 13 on, by means of which, by a user input and / or automatically, at least one setting in the home vehicle AF can be detected. Furthermore, the measuring device 11 the controllable brightness detection device 12 for detecting the brightness value of the light L impinging on the home vehicle AF. The brightness detection device 12 can with the attitude detection device 13 be connected in accordance with the detected settings of the home vehicle AF automatically, as in connection with 1 described.

The measuring device 11 further comprises the controllable position detecting means 12 , by means of which the starting vehicle position AP of the starting vehicle AF can be detected, as well as the controllable time detecting device 16 on, by means of which the time within the predetermined period can be detected.

Furthermore, the measuring device 11 a controllable transmission device 19 on, by means of which the detected brightness value, the detected starting vehicle position AP of the starting vehicle AF and the detected point in time can be transmitted to the computing device S. The measuring device 11 also has a control device 17 on, by means of which at least the brightness detection device 12 , the position detecting device 14 , the time-detecting device 16 and the transmitting device 19 are controllable. The control by means of the control device 17 In particular, it comprises the timing of the detection S01, the detection S02 and the detection S03 as well as the transmission S04. The timing may, for example, effect the regular or continuous performance of detecting S01, S02, S03 and transmitting S04. The control by means of the control device 17 can be done according to a control program programmed control program, which can be adjusted by a user.

4 shows a schematic block diagram of a navigation device 10 according to a fourth embodiment of the present invention. The functions as well as possible variants of the individual elements of the navigation device 10 have already been mentioned above, in particular in connection with the method according to the first embodiment with reference to 1 and 2 described in detail.

According to the fourth embodiment, the navigation device 10 a destination detection device 20 on, by means of which the destination T, at which the target vehicle ZF is to be navigated, can be detected. Furthermore, the navigation device 10 a route determination device 22 on, by means of which the routes R1, R2, along which the vehicle ZF can be navigated to the destination T, can be determined. The navigation device 10 also has an evaluation facility 24 on, by means of which the evaluation of the determined routes R1, R2 with respect to the glare probability for the driver of the target vehicle ZF and / or for the optical sensor of the target vehicle ZF can be created. Furthermore, the navigation device 10 an output device 26 on, by means of which the driver of the target vehicle ZF at least one of the determined routes R1, R2 and information about the evaluation of the at least one of the determined routes R1, R2 can be output.

According to the fourth embodiment, the navigation device includes 10 also a communication device 28 , by means of which of the database DB of the computing device S information which on the brightness value of the incident on the home vehicle AF light L; and at the home vehicle position of the host vehicle AF within the predetermined time period for detecting the brightness value S01; and are based on the time within the predetermined period of time, are retrievable. The communication device 28 includes in particular a wireless interface.

5 FIG. 12 is a schematic flowchart for explaining a method of operating a navigation apparatus of a target vehicle to be navigated at a destination in accordance with a fifth embodiment of the present invention. FIG. The method according to the third embodiment is a variant of the method according to the first embodiment, as compared with that in the method according to the third embodiment, the detecting S08 and transmitting S09 the starting vehicle orientation AA is omitted, as with respect to the method according to FIG already described in the first embodiment.

Although the present invention has been described above with reference to preferred embodiments, it is not limited thereto, but modifiable in a variety of ways. In particular, the invention can be in manifold Modify or modify, without departing from the gist of the invention.

For example, when creating the score, records that are less recent can be weighted higher than records that are more recent. Thus, for example, structural changes can be considered gradually.

The time detection device may also be part of the computing device, for example if detected starting vehicle positions, home vehicle alignments and brightness values are transmitted immediately.

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102012203214 A1 [0007]

Claims (12)

Method for operating a navigation device ( 10 ) of a destination vehicle (Z) to be navigated to a target vehicle (ZF) comprising the steps of: detecting (S01) a brightness value on a home vehicle (AF) incident light (L) by means of a brightness detection device ( 12 ) of the host vehicle (AF); Detecting (S02) a starting vehicle position (AP) of the starting vehicle (AF) by means of a position detecting device ( 14 ) of the host vehicle (AF) within a predetermined time period for detecting (S01) the brightness value; Detecting (S03) a time within the predetermined time period by means of a time detecting means ( 16 ); Transmitting (S04) the detected brightness value, the detected starting vehicle position (AP) of the starting vehicle (AF) and the detected time to a computing device (S); Detecting (S05) a destination (T) at which the target vehicle (ZF) is to be navigated; Determining (S06) routes (R1, R2) along which the target vehicle (ZF) is navigable to the destination (T); and creating (S07) an evaluation of the determined routes (R1, R2) with respect to a glare probability for a driver of the target vehicle (ZF) and / or for an optical sensor of the target vehicle (IF) based at least on the detected brightness value, the detected home vehicle position and the recorded time.  Method according to one of the preceding claims, wherein the detection (S01) of the brightness value, the detection (S02) of the starting vehicle position (AP) and the detection (S03) of the time point are carried out repeatedly, in particular regularly or continuously.  Method according to one of the preceding claims, wherein the detection (S01) of the brightness value, the detection (S02) of the starting vehicle position (AP) and the detection (S03) of the time instant of a plurality of starting vehicles (AF) is performed.  Method according to one of the preceding claims 2 or 3, wherein formed from the detected brightness values, the detected starting vehicle positions (AP) and the detected times a database (DB) with average brightness values at the detected starting vehicle positions (AP) at the detected times becomes; and wherein the creation (S07) of the evaluation is made using information from the database (DB). Method according to one of the preceding claims, wherein the navigation device ( 10 ) of the target vehicle (ZF), the target vehicle (ZF) automatically navigates along a route preferred according to the created rating to the destination (T). Method according to one of the preceding claims, comprising the steps of: detecting (S08) a starting vehicle orientation (AA) of the starting vehicle (AF) by means of an orientation detecting device ( 18 ) of the host vehicle (AF) within the first period; and transmitting (S09) the detected home vehicle orientation to the computing device (S); wherein the determination (S07) of the evaluation is further made using the detected home vehicle orientation (AA).  Method according to one of the preceding claims, wherein further individual parameters of the target vehicle (ZF) are used to create (S07) the score; wherein the individual parameter of the target vehicle (ZF) is a tint of a target vehicle (ZF), a tintability of a target vehicle (ZF), a driver's height above the ground in the target vehicle (ZF), a sensor position of an optical sensor of the target vehicle (ZF) on the target vehicle (ZF) and / or a user specification.  Method according to one of the preceding claims, wherein further external parameters are used to create (S07) the score; wherein the external parameters comprise a current and / or predicted weather situation along the determined routes (R1, R2). Navigation device ( 10 ) for a target vehicle (FZ) to be navigated to a destination point (T), comprising: a destination detection device ( 20 ), by means of which the destination (T) at which the target vehicle (ZF) is to be navigated, can be detected; a route determination device ( 22 ), by means of which routes (R1, R2), along which the vehicle (ZF) can be navigated to the destination (T), can be determined; an evaluation facility ( 24 ), by means of which an evaluation of the determined routes (R1, R2) with respect to a glare probability for a driver of the target vehicle (ZF) and / or for an optical sensor of the target vehicle (ZF) can be created; the evaluation facility ( 24 ) is adapted to the evaluation based on a brightness value incident on a starting vehicle (AF) light (L); and based on a home vehicle position (AP) of the host vehicle (AF) within a predetermined time period for detecting (S01) the brightness value; and based on a time within the predetermined time period to create; and an output device ( 26 ), by means of which the driver of the target vehicle (ZF) at least one of the determined routes (R1, R2) and information about the evaluation of the at least one of the determined routes (R1, R2) can be output. Navigation device ( 10 ) according to claim 9, comprising: a communication device ( 28 ), by means of which of a database (DB) of a computing device (S) information which on the brightness value of the incident on the starting vehicle (AF) light (L); and at the home vehicle position of the host vehicle (AF) within the predetermined time period for detecting (S01) the brightness value; and are based on the time within the predetermined period of time, are retrievable. Measuring device ( 11 ) for a starting vehicle (AF) comprising: a controllable brightness detection device ( 12 ), by means of which a brightness value on the starting vehicle (AF) incident light (L) can be detected; a controllable position detection device ( 14 ), by means of which a starting vehicle position (AP) of the starting vehicle (AF) can be detected; a controllable time detection device ( 16 ), by means of which a time can be detected; a controllable transmission device ( 19 ), by means of which the detected brightness value, the detected starting vehicle position (AP) of the starting vehicle (AF) and the detected time can be transmitted to a computing device (S); and a control device ( 17 ), by means of which at least the brightness detection device ( 12 ), the position detection device ( 14 ), the time detector ( 16 ) and the transmission device ( 19 ) are controllable. Measuring device ( 11 ) according to claim 11, comprising: a controllable alignment detection device ( 18 ), by means of which a starting vehicle orientation (AA) of the starting vehicle (AF) can be detected; wherein the registration detection means ( 18 ) by means of the control device ( 17 ) is controllable; and wherein the detected starting vehicle orientation (AA) of the starting vehicle (AF) by means of the transmission device ( 19 ) can be transmitted to the computing device (S).

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