WO2020045344A1

WO2020045344A1 - Map generation system and in-vehicle device

Info

Publication number: WO2020045344A1
Application number: PCT/JP2019/033314
Authority: WO
Inventors: 茂裕武藤
Original assignee: 株式会社デンソー
Priority date: 2018-08-31
Filing date: 2019-08-26
Publication date: 2020-03-05

Abstract

A map generation system comprises: a server (10) having a map generation unit (11a) and a quality confirmation result reflection unit (11b); and an in-vehicle device (20) having an assisted driving control unit (21a), a difference calculation unit (21c), a map quality determination unit (21d), and a road information acquisition unit (23). The map generation unit generates a tentative map and transmits the map to the in-vehicle device; the difference calculation unit calculates, based on first route information generated from the tentative map and second route information generated from road information acquired from the road information acquisition unit, a difference A between the first route information and the second route information, and when the difference A is at or below a prescribed value, the difference calculation unit transmits, to the quality confirmation result reflection unit, a determination result indicating that the quality of the tentative map is acceptable; and the quality confirmation result reflection unit that received the determination result transmits, to the in-vehicle device, a signal updating the tentative map to a formal map.

Description

Map generation system, in-vehicle device

Cross-reference of related applications

This application is based on Japanese Patent Application No. 2018-163077 filed on Aug. 31, 2018 and Japanese Application No. 2019-141129 filed on Jul. 31, 2019, the contents of which are incorporated herein by reference. Invite.

The present disclosure relates to a map generation system and an in-vehicle device.

評価 As an index for determining map quality, evaluation based on map freshness is generally known. Such an index alone does not guarantee that the map actually operates correctly. There is a method of evaluating the map data using a simulator that simulates the actual system or a test vehicle attached to the actual vehicle, etc. I can't do it.

U.S. Pat. No. 8,918,277

The present disclosure is intended to provide a map generation system that can provide highly reliable map data and maintain highly fresh map data, and a vehicle-mounted device.

In a first aspect of the present disclosure, a map generation system includes a server including a map generation unit, a quality confirmation result reflection unit, an assisted driving control unit, a difference calculation unit, a map quality determination unit, and road information acquisition. And an in-vehicle device having the unit. The map generation unit generates a temporary map and transmits the temporary map to the in-vehicle device, and the difference calculation unit generates a first route information generated from the temporary map and a second route information generated from the road information acquired from the road information acquisition unit. From the route information, a difference amount A between the first route information and the second route information is calculated, and when the difference amount A is equal to or less than a predetermined value, the determination result indicating that the quality of the temporary map is acceptable is obtained. The quality confirmation result reflecting unit, which has transmitted the quality confirmation result reflecting unit and received the determination result, transmits a signal for updating the temporary map to a formal map to the vehicle-mounted device.
According to this configuration, it is possible to provide a map generation system that can provide highly reliable map data and maintain highly fresh map data.

The above and other objects, features and advantages of the present disclosure will become more apparent from the following detailed description with reference to the accompanying drawings. The drawing is
FIG. 1 is a block diagram showing a schematic configuration of a map generation system according to the embodiment. FIG. 2 is a sequence diagram showing an outline of processing in the map generation system. FIG. 3 is a sequence diagram illustrating an outline of processing in the map generation system. FIG. 4 is a sequence diagram showing an outline of processing in the map generation system. FIG. 5 is a diagram illustrating an example of a changed portion of the temporary map.

Hereinafter, a plurality of embodiments of the present disclosure will be described with reference to the drawings. In the following description, the same elements as those described above are denoted by the same reference numerals, and description thereof will be omitted.

As shown in FIG. 1, the map generation system 1 according to the embodiment includes a server 10, a vehicle-mounted device 20, and a road information providing vehicle 30. The server 10, the in-vehicle device 20, and the road information providing vehicle 30 are communicatively connected via a communication unit 12 and a communication unit 22 via a wireless communication network 40 so that data can be transmitted and received.

The server 10 includes a control unit 11 and a communication unit 12. The control unit 11 and the communication unit 12 are connected by a data communication line 13. The control unit 11 is configured by a processor having a CPU, a RAM, a ROM, an I / O, and the like, for example. The control unit 11 includes a map generation unit 11a and a quality confirmation result reflection unit 11b.

The communication unit 12 transmits data information including map information and the like to the vehicle-mounted device 20 and the road information providing vehicle 30 of the verification vehicle via the wireless communication network 40. The control unit 11 realizes functional units such as a map generation unit 11a and a quality check result reflection unit 11b by executing a program stored in a ROM, for example. Here, the map data may be, for example, data including coordinate information of various features existing along a road. Such map data, in one aspect, corresponds to data for autonomously driving a vehicle along a road.

The map generator 11a generates a temporary map and a formal map based on the acquired map data. The quality confirmation result reflecting unit 11b updates the map information based on the acquired temporary map determination information. In addition, the quality confirmation result reflecting unit 11b generates a signal indicating that the distributed temporary map is an official map based on the acquired temporary map determination information. The quality confirmation result reflecting unit 11b transmits, via the communication unit 12, a signal using the official map and the temporary map as official maps to the vehicle-mounted device 20 of the verification vehicle or the road information providing vehicle 30.

The in-vehicle device 20 is installed in a verification vehicle that verifies the temporary map. The in-vehicle device 20 includes a control unit 21, a communication unit 22, and sensors. The sensors are devices capable of acquiring information necessary for assisted driving and automatic driving of the vehicle. The sensors include a road information acquisition unit 23 for recognizing a road and a situation around the road, a steering angle sensor 24 for detecting a steering angle of a steering wheel or a steering wheel of a vehicle, a vehicle speed sensor 25 for detecting a vehicle speed, and a satellite emitted from an artificial satellite. A satellite positioning system 26 for performing position measurement and time distribution using signals transmitted from the vehicle, and an inertial sensor 27 for detecting inertia of the vehicle are included.

The road information acquisition unit 23 includes a camera, LiDAR (Light Detection and Ranging or Laser Imaging Detection and Ranging), a millimeter wave radar, and the like. These are examples of the sensors, and other sensors required by the map generation system 1 may be appropriately provided.

The vehicle-mounted device 20 detects the exact position of the vehicle in chronological order based on the information obtained from these sensors. In addition, the road surrounding information is grasped, such as grasping of road conditions such as lanes and grasping features such as roadside zones and signs.

The control unit 21, the communication unit 22, and the sensors are connected by a data communication line 28. The data communication line 28 is a vehicle-mounted network such as a vehicle-mounted LAN or CAN.

The control unit 21 is configured by a processor including a CPU, a RAM, a ROM, an I / O, and the like. The control unit 21 includes a support driving control unit 21a that controls the assist driving and the automatic driving of the vehicle, a map information generation unit 21b that generates map information, a difference calculation unit 21c that calculates a difference amount of various generated route information, And a map quality judgment unit 21d for judging the quality of the map.

The control unit 21 executes, for example, a program stored in the ROM by the CPU to control functions of the functional units such as the assisted driving control unit 21a, the map information generation unit 21b, the difference calculation unit 21c, and the map quality determination unit 21d. It controls the communication unit 22, the road information acquisition unit 23, the steering angle sensor 24, the vehicle speed sensor 25, the satellite positioning system 26, the inertial sensor 27, and the like.

Although the description of the road information providing vehicle 30 is omitted from the drawing, the same configuration as the vehicle-mounted device 20 shown in FIG. 1, that is, a control unit including a support driving control unit, a map information generation unit, a difference calculation unit, and a map quality determination unit , A communication unit, a road information acquisition unit, a steering angle sensor, a vehicle speed sensor, a satellite positioning system, an inertial sensor, and the like. The road information providing vehicle 30 transmits and receives various data information to and from the server 10 via the wireless communication network 40. Although three vehicles X, Y, and Z are illustrated as the road information providing vehicles 30, one or more vehicles may be used.

As shown in FIG. 2, in the map generation system 1, the road information providing vehicle 30 obtains road information from a video or the like detected by a road information obtaining unit included in the road information providing vehicle 30 (S101). The road condition includes not only information on the road on which the vehicle travels, but also information on roadside conditions, information on road signs, bridges, stations, shops, and other features, landmarks, and the like.

ランド Note that landmarks include, for example, traffic lights, poles, commercial signs, shops, iconic buildings such as historic buildings, and road markings. The pole includes a street light, a mirror, a telephone pole, and the like. Road marking refers to paint painted on the road surface mainly for traffic control and traffic regulation. The road marking includes, for example, a lane boundary line (for example, a so-called lane marking, lane mark) indicating a boundary of a lane, a pedestrian crossing, a stop line, a guiding zone, a safety zone, a regulation arrow, and the like.

路 Also, road markings include road studs such as chatter bars and botsdots. In addition, a signboard corresponding to a traffic sign such as a regulation sign, a guide sign, a warning sign, or an instruction sign may be employed as a landmark. The guide sign refers to a direction sign, a sign indicating a region name, a sign indicating a road name, a notice sign indicating a doorway of an expressway, a service area, and the like.

The map coordinate data of the roads and the features and the information of the feature changes are obtained by the official map distributed to the road information providing vehicle 30, the route information generated by the official map, and sensors such as cameras. It is detected by the difference from the road condition. These map coordinate data and feature change information are transmitted to the server 10 (S101).

Note that the above-described processing in the road information providing vehicle 30 may be performed in a state in which assisted driving or automatic driving (hereinafter, referred to as assisted driving) of the vehicle is executed, or assisted driving or the like is not executed. It may be performed in a state. When the assisted driving or the like is not executed, the operation such as the route generation based on the formal map is performed in the background of the operation of the assisted driving control unit.

Next, the server 10 generates a provisional map when a predetermined number of map coordinate data and feature change information acquired from the plurality of road information providing vehicles 30 are accumulated (S102). Since the provisional map has not been verified by actual use, a portion of the provisional map that has been changed, for example, a feature change location, is provided with a flag of QA = 0 indicating unverified. The generated temporary map is transmitted to the verification vehicle (S102).

{Circle around (1)} A flag indicating that verification has been completed is given to a portion that has been verified and has no problem. The QA flag may be given for each feature such as a landmark, or may be given in a group unit divided for each predetermined section of the road.

(4) The verification vehicle that has received the provisional map performs verification of the provisional map in the vehicle-mounted device 20 included in the verification vehicle. Specifically, the in-vehicle device 20 generates the first route information in the shadow mode using the temporary map (S103). The first route information is generated in the assisted driving control unit 21a of the vehicle-mounted device 20 of the verification vehicle.

Here, the shadow mode refers to an operation mode in which the assisted driving control unit 21a generates route information for assisted driving and the like, but does not execute assisted driving of the vehicle using the generated route information. In this case, when performing the assisted driving or the like with the verification vehicle, the assisted driving or the like is performed based on the route generated based on the official map currently officially distributed in the verification vehicle. That is, verification is performed in the shadow mode based on the route information generated by the provisional map while performing assisted driving or the like based on the official map.

In the verification vehicle, the in-vehicle device 20 generates the second route information based on information acquired by the road information acquisition unit 23, the steering angle sensor 24, the vehicle speed sensor 25, the satellite positioning system 26, and the sensors including the inertial sensor 27. (S104). The second route information is generated by the assisted driving control unit 21a. S103 and S104 are both executed in the shadow mode.

Next, the difference calculation unit 21c calculates the difference A between the first route information and the second route information (S105). The difference amount A is caused by, for example, a change in a feature such as an increase or decrease of a sign, a detour of a route during construction, and the like. Here, the map information generation unit 21b generates difference map information based on the difference amount A. The difference map information may be generated, for example, as feature change coordinate data or detour route coordinate data.

Next, the map quality determination unit 21d determines the quality of the temporary map (S106). The quality of the temporary map is determined based on whether or not the difference A between the first route information and the second route information is equal to or less than a predetermined value. If the difference A is equal to or less than the predetermined value, the quality of the provisional map is acceptable, and if the difference A exceeds the predetermined value, it is determined to be rejected. The in-vehicle device 20 transmits the temporary map quality determination result to the server 10 (S106). At this time, the difference map information and the coordinate data of the location to which QA = 1 is added may be transmitted to the server 10.

(4) If the quality of the temporary map is acceptable in the server 10 that has acquired the quality determination result of the temporary map, the quality check result reflecting unit 11b updates the temporary map as a formal map (S107). Further, the quality confirmation result reflecting unit 11b transmits a signal for updating the temporary map to the official map without transmitting the official map data to the in-vehicle device 20 of the verification vehicle (S107). In the vehicle-mounted device 20 that has received the signal for updating the temporary map as the official map, the temporary map is updated as the official map. At this time, the in-vehicle device 20 may update the map as an official map by reflecting the map coordinate data set to QA = 1 in the temporary map quality determination result.

With this configuration, it is not necessary to distribute a formal map having an enormous amount of data again to a verification vehicle that already has a provisional map, so that the amount of data to be transmitted can be reduced. In the verification vehicle receiving such a signal, the temporary map is updated as an official map, and thereafter, assisted driving and the like are performed based on the official map. The server 10 distributes the updated official map to the road information providing vehicle 30 (S107).

In addition, the verification of the temporary map described above is performed, for example, at the automatic driving level 2 or lower, and when the verification result is passed, the verified temporary map is compared with the automatic driving level at which the distributed temporary map is verified. May be applied to the higher-order automatic operation level 3. As described above, the temporary map data can include automation level information to which the temporary map can be applied. As described above, the temporary map is verified in a state where the automatic driving level is lower, and if the verification result is passed, the temporary map after the verification is set to the next higher automatic driving level than the automatic driving level that verified the temporary map. You may make it apply.

FIG. 3 shows a modification of the processing flow described in FIG. In the verification vehicle, the first route information is generated in the shadow mode using the temporary map (S103), and then, using the official map at this time, the road information acquisition unit 23, the vehicle speed sensor 25, the satellite positioning system 26, the inertia Based on the route information generated from the information obtained from the sensors such as the sensor 27, the third route information on which the verification vehicle has actually traveled is specified and stored (S204). That is, in S204, the third route information which is the route actually traveled by the assisted driving or the like by the vehicle-mounted device 20 of the verification vehicle is stored. In S204, a route that has actually traveled without being controlled by assisted driving or the like may be used as the third route information.

Next, the difference B between the first route information and the third route information is calculated (S205), and the quality of the temporary map is determined (S106). Other processing flows are the same as those shown in FIG. According to the processing flow according to the modified example shown in FIG. 3, it is possible to reflect a change in the road condition due to the actual traveling route and the like.

FIG. 4 shows the processing flow after updating the temporary map as a formal map (S107), that is, the processing flow following FIG. 2 or FIG. In the processing flow shown in FIG. 4, verification of the official map in the road information providing vehicle 30 is executed. Here, the road information providing vehicle 30 may be either a vehicle provided with an assisted driving control system for performing assisted driving of the vehicle or a vehicle provided with an automatic driving control system for automatically driving the vehicle.

The road information providing vehicle 30 that has received the distribution of the official map from the server 10 generates fourth route information based on the official map (S301). In this case, it does not matter whether the road information providing vehicle 30 actually performs vehicle control such as assisted driving using the fourth route information. That is, the road information providing vehicle 30 may verify the formal map in the shadow mode.

Next, the road information providing vehicle 30 acquires road information from the road information acquisition unit 23 (S302). Next, the road information providing vehicle 30 generates fifth route information generated from the road information obtained by the road information obtaining unit such as a camera (S303). The fifth route information is a predicted route generated based on the information acquired from the road information acquisition unit 23. In this case, the road information providing vehicle 30 performs vehicle control such as assisted driving using the fifth route information. It doesn't matter if you do. That is, the road information providing vehicle 30 may verify the formal map in the shadow mode.
Next, the road information providing vehicle 30 calculates the difference C between the fourth route information and the fifth route information (S304). The calculated difference amount is stored in a storage unit (not shown).

Next, the road information providing vehicle 30 is based on the route information generated from information by sensors such as a road information acquisition unit, a vehicle speed sensor, a satellite positioning system, and an inertial sensor. Six path information is specified and stored (S305). In S305, a route that has actually traveled without being controlled by assisted driving or the like may be used as the sixth route information.
Next, the road information providing vehicle 30 calculates a difference D between the fourth route information and the sixth route information (S306). The calculated difference amount is stored in a storage unit (not shown).

Next, the road information providing vehicle 30 determines the quality of the official map from the difference amounts C and D (S307). The quality of the official map is that if the difference amounts C and D exceed a predetermined value, the quality has deteriorated, that is, the feature information on the official map has changed from the time of distribution and no longer matches the actual feature. Meaning, in this case, reject. If the quality of the official map is rejected, the road information providing vehicle 30 transmits to the server 10 the changed map coordinate data and the feature change information that is the changed feature information.

As described above, when the quality evaluation of the formal map fails, the changed map coordinate data and the feature change information are transmitted from the plurality of road information providing vehicles 30 to the server 10 and are sequentially accumulated in the server 10. Is done. When a predetermined number of changed map coordinate data and feature change information are accumulated, the server 10 generates a provisional map as shown in S102 of FIG. 2 or FIG.

(4) Subsequent processing follows the processing flow described in FIGS. As shown in FIG. 5, when there is a changed part of the feature, a flag of QA = 0 is added to the changed part at the time of generating the temporary map, which means that the changed part has not been verified. In the above-described temporary map quality determination, if the temporary map quality evaluation passes, QA = 0 at the changed portion is changed to QA = 1, which means that the verification has been completed.

In this way, a series of cycles of generation of the provisional map → verification of the provisional map → update and distribution of the formal map → verification of the formal map → generation of the provisional map is carried out as appropriate, thereby maintaining the freshness of the formal map. You.

If the quality determination result of the provisional map in S106 is rejected, the determination result indicating that the quality determination result of the provisional map is rejected is transmitted to the server 10, and the server that receives the determination result is transmitted. The quality confirmation result reflecting unit 11b of No. 10 does not transmit a signal indicating that the temporary map is an official map to the vehicle-mounted device 20. In this case, the map generation unit 11a of the server 10 generates a temporary map again taking into account the newly accumulated map coordinate data and feature change information, and performs a processing flow as shown in FIGS. In the in-vehicle device 20, verification of the provisional map and quality determination are performed.

In the verification of the official map in the road information providing vehicle 30, automatic control such as steering and the like is performed in accordance with the road conditions acquired by sensors such as cameras and the first route information estimated based on the distributed official map. During the operation, if the driver or driver's seat occupant operates the steering wheel, that is, if the driver's occupant's operation intervention occurs, there is a discrepancy between the actual road condition and the official map data, The information may be reported to the server 10 in association with the position information. In this case, the server 10 generates and distributes a new temporary map based on the report from the road information providing vehicle 30.

In addition, even if the first route information estimated from the official map data is different from the second route information estimated from road conditions obtained by sensors such as cameras, the driver's occupant's operation intervention is not required. If the generated route information matches the first route information estimated based on the distributed official map, the road condition acquired by sensors such as cameras is incorrect. Then, the official map may be regarded as correct.

In the processing described above, the following may be performed.
The verification vehicle that has received the provisional map verifies the provisional map, and if the verification result is good, may use the verification result as it is for control of assisted driving, automatic driving, and the like without reporting the verification result to the server. The verification vehicle may report to the server only when the verification result of the temporary map is not good. In addition, the server may determine that the verification result of the temporary map is good based on not receiving the transmission of the verification result that is not good during the predetermined verification period.

(4) The vehicle that has received the distribution of the official map specifies the detailed position of the vehicle on the map based on the verified official map and the information acquired by the road information acquisition unit 23, and performs automatic driving. The vehicles include a verification vehicle including the on-vehicle device 20 and a road information providing vehicle 30.

According to the map generation system 1 according to the embodiment, the following effects can be obtained.
According to the configuration of the map generation system 1 according to the embodiment, the verification of the provisional map by the in-vehicle device 20 of the verification vehicle and the verification of the formal map by the road information providing vehicle 30 are performed. And a map generation system capable of maintaining highly fresh map data can be provided.

If the quality of the provisional map is acceptable, the updated official map data is not transmitted from the server 10 to the vehicle-mounted device 20 for vehicles that have already distributed the provisional map, Is transmitted to the in-vehicle device 20 from the server 10, and the amount of data to be transmitted can be reduced. As a result, it becomes possible for the in-vehicle device 20 to quickly acquire the official map. Further, since the amount of data communicated on the wireless communication network 40 can be reduced, it is possible to avoid a delay in communication of the entire wireless communication network 40 and the like.

In the map generation system 1 according to the embodiment, the quality determination of the provisional map in the vehicle-mounted device 20 of the vehicle for verifying the provisional map is performed in a mode in which the vehicle is not assisted by using the route information generated from the provisional map. Will be implemented. That is, the verification of the temporary map is performed in the shadow mode. Therefore, since assisted driving or the like is not performed using the unverified temporary map, it is possible to avoid problems such as erroneous guidance of the vehicle.

In the embodiment described above, the map data generated by the server and distributed to the vehicle may be a traveling trajectory model. In other words, the traveling trajectory model is data indicating a traveling trajectory that becomes a reference during automatic driving. The traveling trajectory model can be, for example, an average of traveling trajectories for each lane. The traveling trajectory model may also be generated as a temporary map or adopted as a formal map by being verified by the above method. Further, the verification target of the distributed map may be a virtual feature, not a real thing such as a lane marking or a feature. Here, the virtual feature refers to a virtual (having no entity) object for controlling the vehicle. The virtual features include the above-described traveling trajectory model, a virtual lane boundary in an intersection, and the like.

Although the present disclosure has been described with reference to the embodiments, it is understood that the present disclosure is not limited to the embodiments and the structures. The present disclosure also encompasses various modifications and variations within an equivalent range. In addition, various combinations and forms, and other combinations and forms including only one element, more or less, are also included in the scope and spirit of the present disclosure.

Claims

A server (10) including a map generation unit (11a) that generates a map, and a quality check result reflecting unit (11b) that reflects a quality check result of the map;
An assisted driving control unit (21a) for controlling assisted driving or automatic driving of the vehicle, a difference calculating unit (21c) for calculating a difference amount of route information, and a map quality determining unit (21d) for determining map quality. A vehicle information device (20) including a road information acquisition unit (23) for acquiring road information.
The map generation unit generates a temporary map and transmits it to the in-vehicle device,
The difference calculation unit calculates a difference amount between the first route information and the second route information based on the first route information generated from the temporary map and the second route information generated from the road information obtained from the road information obtaining unit. A is calculated, and when the difference amount A is equal to or less than a predetermined value, a determination result indicating that the quality of the provisional map is acceptable is transmitted to the quality confirmation result reflecting unit, and the quality confirmation receiving the determination result is performed. The map generating system, wherein the result reflecting unit transmits a signal for updating the temporary map to a formal map to the vehicle-mounted device.
A server (10) including a map generation unit (11a) that generates a map, and a quality check result reflecting unit (11b) that reflects a quality check result of the map;
An assisted driving control unit (21a) for controlling assisted driving, automatic driving, and the like of the vehicle, a difference calculating unit (21c) for calculating a difference amount of route information, and a map quality determining unit (21d) for determining map quality. A vehicle information device (20) including a road information acquisition unit (23) for acquiring road information.
The map generation unit generates a temporary map and transmits it to the in-vehicle device,
The difference calculation unit calculates a difference B between the first route information and the third route information from the first route information generated from the temporary map and the third route information that is the route on which the vehicle actually traveled. When the difference B is equal to or less than a predetermined value, the quality check result reflecting unit that transmits the determination result indicating that the quality of the temporary map is acceptable to the quality check result reflecting unit, and receives the determination result, A map generation system for transmitting a signal for updating the temporary map as a formal map to the vehicle-mounted device.
When the difference amount A exceeds a predetermined value, a determination result indicating that the quality of the temporary map is rejected is transmitted to the quality check result reflecting unit, and the quality check result reflecting unit that receives the determination result is 2. The map generation system according to claim 1, wherein a signal for making the temporary map an official map is not transmitted to the on-vehicle device.
When the difference amount B exceeds a predetermined value, a determination result indicating that the quality of the temporary map is rejected is transmitted to the quality check result reflecting unit, and the quality check result reflecting unit that receives the determination result is 3. The map generation system according to claim 2, wherein a signal for making the temporary map an official map is not transmitted to the on-vehicle device.
When the difference amount A or B is equal to or less than a predetermined value, the map generation unit generates a formal map and transmits the formal map to the road information providing vehicle, and the fourth route information and the road information generated from the formal map by the road information providing vehicle. A difference amount C that is a difference amount between the fifth route information generated from the road information acquired from the acquisition unit and a difference amount D that is a difference amount between the fourth route information and the sixth route information on which the vehicle actually travels. The map generation system according to claim 2, wherein when the difference amounts C and D exceed predetermined values, the changed feature information is transmitted to the map generation unit.
The on-vehicle device that has acquired the temporary map performs the quality determination of the temporary map in a mode in which the vehicle does not perform assisted driving, automatic driving, or the like using the first route information generated from the temporary map. The map generation system according to any one of claims 1 to 5.
A server (10) including a map generation unit (11a) that generates a map, and a quality check result reflecting unit (11b) that reflects a quality check result of the map;
An assisted driving control unit (21a) for controlling assisted driving or automatic driving of the vehicle, a difference calculating unit (21c) for calculating a difference amount of route information, and a map quality determining unit (21d) for determining map quality. A vehicle information device (20) including a road information acquisition unit (23) for acquiring road information.
The map generation unit generates a formal map and transmits the formal map to the in-vehicle device,
The difference calculation unit is generated based on fourth route information generated from the official map, fifth route information generated from the road information obtained from the road information obtaining unit, and information obtained from the road information obtaining unit. The sixth route information, which is the route on which the vehicle actually traveled, is specified from the route information, and the difference amount C between the fourth route information and the fifth route information and the difference amount between the fourth route information and the sixth route information are determined. A map generation system that calculates D, and when the difference amounts C and D are equal to or smaller than a predetermined value, transmits feature change information that is changed feature information to the server.
8. The map generation system according to claim 7, wherein the server that has received the changed feature information generates a temporary map by accumulating the feature change information.
An assisted driving control unit (21a) for controlling assisted driving or automatic driving of the vehicle, a difference calculating unit (21c) for calculating a difference amount of route information, and a map quality determining unit (21d) for determining map quality. A road information acquisition unit (23) for acquiring road information;
A communication unit (22) capable of receiving the temporary map generated by the server (10);
The difference calculation unit calculates a difference amount between the first route information and the second route information based on the first route information generated from the temporary map and the second route information generated from the road information obtained from the road information obtaining unit. An in-vehicle device that calculates A, and when the difference amount A is equal to or less than a predetermined value, can transmit a determination result indicating that the quality of the temporary map is acceptable to the server via the communication unit.
An assisted driving control unit (21a) for controlling assisted driving, automatic driving, and the like of the vehicle, a difference calculating unit (21c) for calculating a difference amount of route information, and a map quality determining unit (21d) for determining map quality. An on-vehicle device (20) including a road information acquisition unit (23) for acquiring road information;
A communication unit (22) capable of receiving the temporary map generated by the server (10);
The difference calculation unit calculates a difference B between the first route information and the third route information from the first route information generated from the temporary map and the third route information that is the route on which the vehicle actually traveled. And an in-vehicle device capable of transmitting a determination result indicating that the quality of the provisional map is acceptable to the server via the communication unit when the difference amount B is equal to or less than a predetermined value.
The vehicle-mounted device according to claim 9, wherein when the difference amount A exceeds a predetermined value, a determination result indicating that the quality of the provisional map is unacceptable can be transmitted to the server via the communication unit.
The vehicle-mounted device according to claim 10, wherein when the difference amount B exceeds a predetermined value, a determination result indicating that the quality of the provisional map is unacceptable can be transmitted to the server via the communication unit.
The difference C between the fourth route information generated from the official map received from the server and the fifth route information generated from the road information acquired from the road information acquisition unit, and the difference between the fourth route information and the vehicle The difference amount D, which is the difference amount from the sixth route information that has traveled, is calculated. If the difference amount C and the difference amount D exceed a predetermined value, the changed feature information is transmitted to the server via the communication unit. The in-vehicle device according to any one of claims 9 to 12, which is capable of transmitting.
An assisted driving control unit (21a) for controlling assisted driving or automatic driving of the vehicle,
A difference calculation unit (21c) for calculating a difference amount of the path information;
A map quality determining unit (21d) for determining the quality of the map,
A road information acquisition unit (23) for acquiring road information;
A communication unit (22) capable of receiving the official map generated by the server (10);
The difference calculation unit is generated based on fourth route information generated from the official map, fifth route information generated from the road information obtained from the road information obtaining unit, and information obtained from the road information obtaining unit. The sixth route information, which is the route on which the vehicle actually traveled, is specified from the route information, and the difference amount C between the fourth route information and the fifth route information and the difference amount between the fourth route information and the sixth route information are determined. An in-vehicle device that calculates D and, when the difference amounts C and D are equal to or less than a predetermined value, transmits changed feature information to a server via the communication unit.
An assisted driving control unit (21a) for controlling assisted driving or automatic driving of the vehicle,
A road information acquisition unit (23) for acquiring road information;
A communication unit (22) capable of receiving the official map generated by the server (10);
A road information acquisition unit (23) for recognizing a road and a situation around the road;
Sensors (24, 25, 26, 27) capable of acquiring information necessary for assisted driving and automatic driving of the vehicle,
The official map and the road information acquired by the road information acquisition unit, the road information acquisition unit, the steering angle sensor, the vehicle speed sensor, the position of the vehicle identified using the satellite positioning system and the inertial sensor, and An in-vehicle device that performs automatic driving by using it.
The sensors include a steering angle sensor (24) for detecting a steering angle of a steering wheel or a steering wheel of a vehicle, a vehicle speed sensor (25) for detecting a vehicle speed, position measurement using a signal emitted from an artificial satellite, and time distribution. The in-vehicle device according to claim 15, further comprising at least one of a satellite positioning system (26) that performs the following and an inertial sensor (27) that detects an inertia of the vehicle.