WO2018225347A1 - 走行障害検出装置及び車両ナビゲーションシステム - Google Patents
走行障害検出装置及び車両ナビゲーションシステム Download PDFInfo
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Definitions
- the present invention relates to a travel obstacle detection device and a vehicle navigation system.
- Patent Document 1 discloses a road surface state detection device that acquires a road surface state such as road surface unevenness and cracks before traveling.
- This road surface state detection device estimates a road surface state based on the acceleration acting on the acceleration sensor by the rotation of the wheel of the vehicle, and transmits it to the cloud server together with the position information of the vehicle.
- Other vehicles can acquire the road surface state before traveling based on the position information and the road surface state information.
- the present invention has been made in view of the above problems, and provides a travel failure detection apparatus and a vehicle navigation system that can appropriately detect the position of a travel failure on a road and provide travel failure information before the vehicle travels. For the purpose.
- a data acquisition unit that receives at least data including vehicle position information from an in-vehicle control device, and a surrounding area of the travel position based on a travel locus of the vehicle obtained from a history of the received position information.
- a travel fault detection device including a fault information generation unit that generates travel fault information and a fault information transmission unit that transmits the generated travel fault information to an in-vehicle control device.
- the above-described travel failure detection device a location information acquisition unit that acquires location information of the host vehicle, and a data transmission unit that transmits data including at least location information to the travel failure detection device.
- a vehicle navigation system comprising: an in-vehicle control device that includes a fault information acquisition unit that receives driving fault information from the driving fault detection device, and a navigation control unit that performs a navigation operation based on the driving fault information.
- FIG. 1 is a schematic diagram of a vehicle navigation system according to an embodiment of the present invention. It is a schematic diagram which shows the structural example of the vehicle carrying the vehicle-mounted control apparatus which concerns on the embodiment. It is a block diagram which shows the structural example of the driving
- the vehicle 10 when it is not particularly necessary to distinguish
- the vehicles 10 a, 10 b, 10 c, and 10 d are traveling on the road 9.
- the travel failure detection device 100 receives data including at least position information from the traveling vehicle 10, generates travel failure information based on these data, and transmits the travel failure information to the vehicle 10.
- the travel failure detection device 100 is, for example, a cloud server.
- the vehicles 10c and 10d traveling on the second lane 9b continue to travel on the second lane 9b.
- the vehicles 10a and 10b that have traveled in the first lane 9a change the lane from the first lane 9a to the second lane 9b in order to avoid the travel obstacle 5. It is considered that almost all the vehicles 10 traveling in the first lane 9a change to the second lane 9b while the traveling obstacle 5 exists.
- the travel obstacle detection device 100 when there is a travel obstacle 5 on the road 9, the travel obstacle detection device 100 according to the present embodiment is based on the fact that the plurality of vehicles 10 travel while avoiding the travel obstacle 5. When it can be determined from the traveling locus that the vehicle 10 is performing an operation of avoiding some traveling obstacle 5, it is determined that the traveling obstacle 5 exists on the road 9.
- the travel failure detection device 100 transmits information on the detected travel failure 5 to the plurality of vehicles 10, so that each vehicle 10 acquires the presence of the travel failure 5 in advance, and the driver easily avoids the travel failure 5. be able to.
- the road 9 on which the vehicle 10 travels is wider than the normal vehicle width. In many cases, the vehicle 10 passes through a part of the width direction of the road. In the vehicle navigation system 1 according to this embodiment, the position information of the vehicle 10 is obtained. By using the included data, it is possible to estimate the location of the running obstacle 5 with higher accuracy.
- the driving obstacle 5 is caused by the vehicle 10 traveling away from the position, such as severe unevenness on the surface of the road 9, a road 9 being closed, a traffic accident on the road 9, or a falling object on the road 9. Including the event. Further, in the vehicle navigation system 1 according to the present embodiment, the travel obstacle detection device 100 further calculates information on the speed bumps on the road 9, snow cover, road slope, or curvature radius information of the curved road, Transmission to the vehicle 10 is possible.
- the vehicle 10 includes an in-vehicle control device 50.
- the in-vehicle control device 50 receives signals from various sensors or detection devices (hereinafter also simply referred to as “detectors”) mounted on the vehicle 10, and transmits the obtained information to the traveling obstacle detection device 100. Further, the in-vehicle control device 50 receives the travel failure information from the travel failure detection device 100 and performs the navigation operation of the vehicle 10.
- the vehicle 10 includes four rotation sensors 13a, 13b, 13c, 13d, four impact sensors 15a, 15b, 15c, 15d, a GPS (Global Positioning system) unit 20, an imaging unit 22, an acceleration sensor 24, A display device 26, a steering angle sensor 34, and a brake control unit 40 are provided.
- GPS Global Positioning system
- the rotation sensors 13a, 13b, 13c, and 13d (hereinafter referred to as the rotation sensor 13 when it is not particularly necessary to distinguish) and the four impact sensors 15a, 15b, 15c, and 15d (hereinafter, particularly required to be distinguished). If not, the impact sensor 15 is indicated on the front, rear, left and right wheels 11FR, 11FL, 11RR, 11RL of the vehicle 10 (hereinafter referred to as the wheels 11 if it is not particularly necessary to distinguish). ing.
- the rotation sensor 13 outputs a sensor signal corresponding to the number of rotations of each wheel 11.
- the impact sensor 15 outputs a sensor signal corresponding to the impact received by each wheel 11.
- the impact sensor 15 is provided, for example, in a shock observer provided on each wheel 11. Sensor signals from the rotation sensor 13 and the impact sensor 15 are output to the in-vehicle control device 50.
- the GPS unit 20 has a GPS antenna and a GPS device.
- the GPS device receives radio waves from a GPS satellite via a GPS antenna, and obtains the GPS device, that is, the current position of the vehicle 10 by positioning calculation.
- the GPS unit 20 outputs the obtained position information to the in-vehicle control device 50.
- the imaging unit 22 has a camera and an imaging processing device.
- the camera is an imaging device having an imaging element such as a CCD (Charge Coupled Device) or a CMOS (Complementary Metal Oxide Semiconductor), and images the front of the vehicle 10.
- the imaging processing device performs known image processing based on the imaging data of the camera, and recognizes a vehicle in front of the vehicle 10, an obstacle, a traveling lane, a road surface condition, and the like.
- the imaging processing device outputs the recognized forward information to the in-vehicle control device 50.
- the camera may be a monocular camera or a stereo camera.
- the acceleration sensor 24 outputs sensor signals corresponding to the inclination of the vehicle 10 from the horizontal direction in the front-rear direction and the vehicle width direction.
- the sensor signal of the acceleration sensor 24 is output to the in-vehicle control device 50.
- the steering angle sensor 34 outputs a sensor signal corresponding to the steering angle that is the rotation angle of the steering wheel 32.
- the sensor signal of the steering angle sensor 34 is output to the in-vehicle control device 50.
- the brake control unit 40 controls a braking force generated by a brake device (not shown) provided on each wheel 11.
- the brake control unit 40 controls the hydraulic pressure supplied to the brake caliper provided in each wheel 11 by controlling the driving of the electromagnetic valve, and adjusts the braking force.
- Information on the braking force generated in each wheel 11 is output to the in-vehicle control device 50.
- the configuration of the brake device is not particularly limited.
- the display device 26 displays a road map together with information around the travel position of the vehicle 10.
- the display device 26 includes a display panel such as a liquid crystal panel, for example, and display control is performed by the in-vehicle control device 50.
- the display device 26 may be a head-up display that performs display on the front window of the vehicle.
- the in-vehicle control device 50 (50a, 50b, 50c, 50d) mounted on each vehicle 10 (10a, 10b, 10c, 10d) includes a communication unit 52, a traveling state detection unit 54, and a position information acquisition unit 56.
- the in-vehicle control device 50 includes a processor such as a CPU (Central Processing Unit) or MPU (Micro Processing Unit).
- the in-vehicle control device 50 may be configured by an updatable device such as firmware in addition to a processor such as a CPU or MPU, and is executed by a command from the CPU or the like. It may be a program module or the like.
- the vehicle-mounted control apparatus 50 may be comprised by the some control apparatus which can mutually communicate.
- the storage unit 62 stores a computer program executed by the processor, the acquired sensor signal or information, and information on the calculation result of the processor.
- the storage unit 62 includes storage elements such as a ROM (Read Only Memory) for storing computer programs and control parameters, and a RAM (Random Access Memory) for storing acquired information, control parameters, calculation processing result information, and the like. But you can.
- the storage unit 62 may include a storage device using another storage medium such as a CD-ROM or a storage device.
- the communication unit 52 is an interface that transmits and receives signals to and from the travel failure detection device 100.
- the communication unit 52 performs wireless communication with the travel failure detection device 100.
- the in-vehicle control device 50 includes the communication unit 52, but the vehicle 10 includes a gateway control device that is different from the in-vehicle control device 50, and the gateway control device
- the in-vehicle control device 50 may be configured to be able to communicate with the travel failure detection device 100.
- the traveling state detection unit 54 acquires signals or information output from the rotation sensor 13, the impact sensor 15, the imaging unit 22, the acceleration sensor 24, the steering angle sensor 34, and the brake control unit 40 provided in the vehicle 10.
- the traveling state detection unit 54 is a function realized by execution of a computer program by a processor. Based on the acquired signal or information, the traveling state detection unit 54 determines the rudder angle, the magnitude of impact received by each wheel 11, the rotational speed of each wheel 11, the vehicle speed, the inclination of the vehicle 10, and the The presence or absence of slip and the braking force generated on each wheel 11 are obtained.
- the obtained information is information on the running state. Some of these running states may be omitted.
- the position information acquisition unit 56 acquires position information output from the GPS unit 20 provided in the vehicle 10.
- the position information acquisition unit 56 is a function realized by execution of a computer program by a processor.
- the position information acquisition unit 56 acquires position information for each preset cycle.
- the failure information reception unit 58 receives the travel failure information transmitted from the travel failure detection device 100.
- the failure information receiving unit 58 is a function realized by execution of a computer program by a processor. For example, the failure information reception unit 58 receives the travel failure information transmitted for each preset cycle.
- the data transmission unit 60 transmits data including at least the position information of the vehicle 10 to the traveling obstacle detection device 100.
- the data transmission unit 60 is a function realized by execution of a computer program by a processor. For example, the data transmission unit 60 transmits data for each preset cycle. In the present embodiment, the data transmission unit 60 transmits data including travel state information together with the position information of the vehicle 10 to the travel failure detection device 100.
- the navigation control unit 64 performs a navigation operation based on the travel failure information received from the travel failure detection device 100.
- the navigation control unit 64 is a function realized by executing a computer program by a processor.
- the navigation control unit 64 reflects the travel obstacle information in the road map information displayed on the display device 26 and causes the driver to recognize the travel obstacle information.
- the navigation control unit 64 may specifically display the position of the travel obstacle present on the travel lane.
- the navigation control unit 64 may cause the display device 26 to display the 3D virtual image.
- the navigation control unit 64 may generate a warning sound to prompt the driver to be alerted as the vehicle 10 approaches a travel obstacle.
- the travel failure detection device 100 includes a communication unit 101, a data acquisition unit 103, a failure information generation unit 105, a failure information transmission unit 107, and a storage unit 109.
- the travel failure detection apparatus 100 includes a processor such as a CPU or MPU. Further, a part or all of the travel failure detection apparatus 100 may be configured by an updatable device such as firmware in addition to a processor such as a CPU or MPU, and is executed by a command from the CPU or the like. It may be a program module or the like.
- the travel failure detection device 100 may be configured by a plurality of control devices that can communicate with each other.
- the storage unit 109 stores a computer program executed by the processor, the acquired sensor signal or information, and information on the calculation result of the processor.
- the storage unit 109 includes storage elements such as a ROM (Read Only Memory) for storing computer programs and control parameters, and a RAM (Random Access Memory) for storing acquired information, control parameters, calculation processing result information, and the like. But you can.
- the storage unit 109 may include a storage device using another storage medium such as a CD-ROM or a storage device.
- the communication unit 101 is an interface that transmits and receives signals to and from the in-vehicle control device 50.
- the travel failure detection device 100 is a so-called cloud server, and the communication unit 101 performs wireless communication with the in-vehicle control device 50.
- the data acquisition unit 103 acquires data transmitted from the in-vehicle control device 50.
- the data acquisition unit 103 is a function realized by execution of a computer program by a processor.
- the acquired data includes at least position information of the vehicle 10.
- the data to be acquired includes travel state information together with the position information of the vehicle 10.
- the failure information generation unit 105 obtains a travel locus of the vehicle 10 based on the acquired position information history. Further, the failure information generation unit 105 generates travel failure information around the travel position based on the obtained travel locus.
- the failure information generation unit 105 is a function realized by executing a computer program by a processor. For example, the failure information generation unit 105 determines that the plurality of vehicles 10 are performing an avoidance operation at a specific position by superimposing the obtained travel locus information of the plurality of vehicles 10 on the road map information. The presence of fault 5 may be detected.
- the failure information generation unit 105 may detect the road state based on the travel state information of the vehicle 10.
- the road state is a state such as road surface unevenness, road inclination, curvature radius of a curved road, and the like, and the failure information generation unit 105 may cause danger to the traveling of the vehicle 10 by the failure information generation unit 105. Is determined to be travel fault information.
- the failure information generation unit 105 may generate 3D virtual image information of the travel failure information based on the detected road state information, travel locus information, and road map information.
- the failure information transmission unit 107 transmits the generated traveling failure information to the in-vehicle control device 50.
- the failure information transmission unit 107 is a function realized by execution of a computer program by a processor.
- the failure information transmission unit 107 also transmits the 3D virtual image information to the in-vehicle control device 50.
- FIG. 4 is a flowchart showing data transmission processing by the in-vehicle control device 50.
- the traveling state detection unit 54 of the in-vehicle control device 50 detects the traveling state of the host vehicle 10 (step S31). Specifically, the traveling state detection unit 54 receives signals or information output from the rotation sensor 13, the impact sensor 15, the imaging unit 22, the acceleration sensor 24, the steering angle sensor 34, and the brake control unit 40 provided in the vehicle 10. get. The traveling state detection unit 54 also determines the steering angle, the magnitude of the impact received by each wheel 11, the rotation speed of each wheel 11, the vehicle speed, the inclination of the vehicle 10, and each wheel based on the acquired signal or information. Eleven slips and the braking force generated in each wheel 11 are obtained. Some of these running states may be omitted.
- the position information acquisition unit 56 of the in-vehicle control device 50 acquires the position information of the host vehicle 10 (step S33). Specifically, the position information acquisition unit 56 acquires position information output from the GPS unit 20 provided in the vehicle 10. Next, the data transmission unit 60 of the in-vehicle control device 50 transmits data including at least the position information of the host vehicle 10 and the traveling state information to the traveling failure detection device 100 via the communication unit 52 (step S35).
- the in-vehicle control device 50 executes the data transmission process shown in FIG. 4 for each preset cycle. Alternatively, the in-vehicle control device 50 may execute the data transmission process in response to a transmission request from the travel failure detection device 100.
- FIG. 5 is a flowchart showing a travel failure detection process performed by the travel failure detection apparatus 100.
- the data acquisition unit 103 of the travel obstacle detection device 100 receives data including at least position information of the vehicle 10 from the in-vehicle control device 50 (step S11).
- the data acquisition unit 103 receives data including travel state information together with the position information of the vehicle 10.
- the data acquisition unit 103 receives data from a plurality of vehicles 10 on which the in-vehicle control device 50 is mounted.
- the data acquisition unit 103 stores data including the received position information and travel state information in the storage unit 109.
- the data acquisition unit 103 determines whether or not a predetermined period set in advance as a period for receiving data from the in-vehicle control device 50 has elapsed (step S13).
- the predetermined period is set to an appropriate time sufficient to determine the presence or absence of the traveling obstacle 5 based on the received data.
- the predetermined period may be set to 5 to 10 minutes.
- the data acquisition unit 103 may increase the number of data receptions by shortening the data reception interval based on the number of data received in the past predetermined period. Thereby, the acquisition interval of the position information of the same vehicle 10 is shortened, and the traveling locus of the vehicle 10 can be obtained more accurately.
- the data acquisition unit 103 may change the length of the predetermined period based on the number of data received in the past predetermined period. For example, when the number of data received within a certain period is small and the reliability of the generated travel failure information is low, the predetermined period may be lengthened.
- the data acquisition unit 103 returns to step S11 and repeats reception of data from the in-vehicle control device 50.
- the failure information generation unit 105 of the traveling failure detection apparatus 100 determines each vehicle 10 based on the history of position information among the data accumulated in the storage unit 109. Is calculated (step S15).
- the failure information generation unit 105 calculates a travel locus for each vehicle 10 based on the history of position information.
- the failure information generation unit 105 generates travel failure information around the travel position based on the travel locus information of the vehicle 10 (step S17). For example, the failure information generation unit 105 determines the avoidance operation of the vehicle 10 on the road 9 by integrating the travel locus information of each vehicle 10 and the road map information accumulated in the storage unit 109.
- the position of the travel obstacle 5 is specified by For example, when the obstacle information generation unit 105 recognizes that the plurality of vehicles 10 are traveling so as to avoid a certain position on the road 9, the traveling obstacle 5 exists at the avoiding position. It is determined that
- the failure information generation unit 105 may determine the presence of the travel failure 5 by using the travel state information of the vehicle 10 together with the travel locus information of the vehicle 10. For example, the failure information generation unit 105 can be recognized by the driver in the approaching state when the braking force applied to the wheels 11 is rapidly increased immediately before the turning motion of the vehicle 10 detected from the travel locus of the vehicle 10. It may be determined that there is such a traveling obstacle 5. Further, the obstacle information generation unit 105 may detect the traveling obstacle 5 on the road 9 by performing image processing on the imaging information in front of the vehicle 10 acquired using the imaging unit 22.
- the failure information generation unit 105 may also detect the state of the road 9 based on the traveling state information of the vehicle 10. For example, the radius of curvature of the curved road 9 can be estimated based on information on the steering angle detected using the steering angle sensor 34. Further, the inclination angle of the road 9 can be estimated based on information on the inclination angle detected using the acceleration sensor 24. Further, road surface unevenness, speed bumps, and snow cover state are, for example, information on the rotational speed of each wheel 11 detected using the rotation sensor 13 and the impact on each wheel 11 detected using the impact sensor 15. It can be estimated based on information.
- the obstacle information generating unit 105 has the traveling obstacle 5 on the road surface of the traveling position of the vehicle 10. Then, it may be determined. In particular, by detecting the state of the road 9 by superimposing the information on the traveling state received from the plurality of vehicles 10, the detection accuracy of the state of the road 9 can be improved.
- the failure information generation unit 105 may generate 3D virtual image information of the road 9 based on the detected road 9 state information, travel locus information, and road map information.
- the generated 3D virtual image is transmitted to the in-vehicle control device 50 of each vehicle 10. Thereby, it is not necessary to generate 3D virtual image information in each vehicle 10, and the same 3D virtual image information can be shared by a plurality of vehicles 10.
- the failure information generation unit 105 overwrites the information on the travel failure 5 stored in the storage unit 109 and updates the information to the latest information (step S19). At this time, the failure information generation unit 105 may delete the data used to generate the latest information on the travel failure 5 from the storage unit 109. As a result, in the next period, the information on the traveling obstacle 5 is generated based on the data accumulated in the period, so that the latest information on the traveling obstacle 5 can be generated at any time. In addition, it is possible to avoid an enormous amount of data stored in the storage unit 109.
- the failure information transmitting unit 107 transmits information on the traveling failure 5 to the in-vehicle control device 50 of the vehicle 10 via the communication unit 101 (step S21).
- the information on the travel obstacle 5 may be transmitted toward all the vehicles 10 on which the in-vehicle control device 50 is mounted, or is transmitted toward the vehicle 10 traveling within a predetermined distance from the position where the travel obstacle 5 exists. May be.
- the travel failure detection device 100 executes the travel failure 5 detection process shown in FIG. 5 for each preset cycle, and provides information on the travel failure 5 to the in-vehicle control device 50 of each vehicle 10.
- FIG. 6 is a flowchart illustrating another example of the travel failure detection process performed by the travel failure detection apparatus 100.
- the data acquisition unit 103 of the travel failure detection apparatus 100 receives data including at least position information of the vehicle 10 and travel state information from the in-vehicle control device 50 at a preset reception interval (step S61).
- the data acquisition unit 103 determines whether or not the received data is different from the information on the driving obstacle 5 or the information on the state of the road 9 that is already stored in the storage unit 109 of the driving obstacle detection device 100 (step). S63). For example, when the travel locus of the vehicle 10 in the newly received data passes through a position where it is recognized that the travel obstacle 5 exists, the travel state of the vehicle 10 in the newly received data is road When the data acquisition unit 103 indicates a different state at the position where it is recognized that the 9 unevenness or the sharp curve exists, the data acquisition unit 103 determines that the received data is different from the information already stored in the storage unit 109. To do.
- the data acquisition unit 103 ends the process while maintaining the current data reception interval.
- the data acquisition unit 103 applies to all the vehicles 10 traveling around the target road 9. A request is made to shorten the data transmission interval, that is, to increase the data transmission frequency (step S65).
- the data acquisition unit 103 determines whether or not all the vehicles 10 traveling around the target road 9 avoid a specific position on the road 9 (step S67). If all the vehicles 10 do not avoid a specific position on the road 9 (S67 / No), the data acquisition unit 103 considers that the data mismatch has occurred temporarily and ignores it (step S67). S75). On the other hand, when all the vehicles 10 avoid a specific position on the road 9 (S67 / Yes), the fault information generation unit 105 determines the state of the driving fault 5 or the road 9 based on the newly acquired data. The information on the road fault 5 or the state of the road 9 detected and stored in the storage unit 109 is updated to information reflecting the latest state (step S69).
- the failure information transmission unit 107 transmits the updated information on the traveling failure 5 and the information on the state of the road 9 to the in-vehicle control device 50 of each vehicle 10 (step S71). That is, in the example of the flowchart shown in FIG. 6, only when the information on the driving obstacle 5 or the information on the state of the road 9 is updated, the information on the driving obstacle 5 and the state of the road 9 are transmitted to the in-vehicle control device 50. Information is sent.
- the data acquisition unit 103 requests all the vehicles 10 to restore the data transmission interval, that is, to reduce the data transmission frequency, and terminates the process. (Step S73).
- the data transmission interval from the in-vehicle control device 50 to the travel failure detection device 100 and the data transmission interval from the travel failure detection device 100 to the in-vehicle control device 50 are changed to meet the necessity.
- the frequency of data communication is increased, and the load on the in-vehicle control device 50 and the travel failure detection device 100 can be reduced.
- the driving failure detection device 100 collects the latest data earlier, and the new driving failure 5 information. And the information on the state of the road 9 can be updated and provided to the in-vehicle control device 50.
- FIG. 7 is a flowchart showing an example of navigation operation processing by the in-vehicle control device 50.
- the failure information receiving unit 58 of the in-vehicle control device 50 receives the information on the travel failure 5 transmitted from the travel failure detection device 100 (step S31).
- the information on the travel obstacle 5 includes information that specifically indicates the position of the travel obstacle 5 on the road 9.
- the information on the driving obstacle 5 is information on which lane the driving obstacle 5 exists, or any position on the center, right side, or left side of the road 9 Information on whether or not it exists.
- the obstacle information receiving unit 58 may receive information on the driving obstacle 5 transmitted at predetermined time intervals while the vehicle 10 is traveling, and a passenger such as a driver sets the destination of the vehicle navigation system 1. Sometimes, the travel failure detection device 100 may be requested to transmit information about the travel failure 5 and received. Further, the fault information receiving unit 58 may receive information on the 3D virtual image of the state of the road 9 together with the information on the driving fault 5.
- the navigation control unit 64 of the in-vehicle control device 50 controls the navigation operation using the received information on the travel failure 5 (step S43).
- the navigation control unit 64 reflects the information on the driving obstacle 5 in the navigation display displayed on the display device 26.
- FIG. 8 shows an example of navigation display by the navigation control unit 64.
- This navigation display when the vehicle 6 approaches the driving obstacle 5 while the symbol 6 indicating the presence of the driving obstacle 5 is displayed on the small-scale road map on the display screen 45, An enlarged window 47 is launched in the right half, and the position of the traveling obstacle 5 on the road 9 is specifically displayed by the symbol 6. For this reason, a passenger such as a driver can grasp in advance the position of the traveling obstacle 5 existing on the road 9 to be traveled, and can avoid the traveling obstacle 5 safely.
- the navigation control unit 64 may cause the display device 26 to display the 3D virtual image.
- the navigation control unit 64 executes a warning process (step S45).
- the warning process is a process for alerting a passenger such as a driver when the travel obstacle 5 is present ahead of the traveling direction of the host vehicle 10.
- FIG. 9 is a flowchart illustrating an example of the warning process.
- the navigation control unit 64 determines whether or not the travel obstacle 5 exists ahead of the traveling direction of the host vehicle 10 (step S51). Specifically, the navigation control unit 64 determines whether or not the traveling obstacle 5 exists ahead on the road 9 on which the host vehicle 10 travels. When the travel obstacle 5 does not exist ahead of the traveling direction of the host vehicle 10 (S51 / No), the navigation control unit 64 returns to the start and repeats the determination in step S51.
- the navigation control unit 64 determines whether the host vehicle 10 has approached the traveling obstacle 5 (step S53). For example, the navigation control unit 64 determines whether or not the distance between the host vehicle 10 and the travel obstacle 5 existing ahead in the traveling direction is less than a preset distance. If the host vehicle 10 is not approaching the travel obstacle 5 (S53 / No), the navigation control unit 64 returns to the start and performs the determination in step S51.
- the navigation control unit 64 performs a notification process such as generating a sound or a warning sound (step S55).
- a passenger such as a driver can recognize the travel obstacle 5 and perform a safe avoidance operation even when the navigation display is not being viewed.
- the travel failure detection device 100 As described above, the travel failure detection device 100 according to the present embodiment generates travel failure information around the travel position based on the travel locus of the vehicle 10 obtained from the history of position information received from the vehicle 10, It transmits to the vehicle-mounted control apparatus 50 mounted in the vehicle 10. Since the travel failure detection device 100 generates information on the travel failure 5 based on the travel locus of the vehicle 10, the travel failure detection device 100 can appropriately detect the position of the travel failure 5.
- each vehicle 10 can specifically acquire the position of the travel obstacle 5, so that the driver can improve the certainty of avoiding the travel obstacle 5. it can.
- the travel failure detection device 100 detects the travel failure 5 using travel trajectories of the plurality of vehicles 10 based on data received within a predetermined period set in advance. For this reason, the estimation accuracy of the presence of the running obstacle 5 can be increased. In addition, when the number of data received within a predetermined period is small, the traveling failure detection apparatus 100 shortens the data reception interval so that more data can be accumulated. Thereby, the estimation precision of presence of the driving
- the travel failure detection device 100 detects the travel failure 5 using the travel state information together with the travel locus information of the vehicle 10. For this reason, even when the road on which the vehicle is traveling is in a dangerous state for the vehicle, the vehicle is detected as the driving obstacle 5, and the driver can improve the certainty of avoiding the driving obstacle 5 related to the road condition. it can.
- the travel failure detection device 100 changes the data transmission interval from the in-vehicle control device 50 to the travel failure detection device 100 and the data transmission interval from the travel failure detection device 100 to the in-vehicle control device 50. By doing so, it becomes the communication frequency of the data according to necessity, and the load of the vehicle-mounted control apparatus 50 and the driving
- the travel failure detection device 100 collects the latest data earlier, and information on the new travel failure 5 and the state of the road 9 Can be updated and provided to the in-vehicle control device 50.
- the travel failure detection device 100 detects the state of the road 9 based on the information received from the vehicle 10, and uses the information on the state of the road 9, the travel locus information, and the road map information. Based on this, a 3D virtual image of the road 9 may be generated.
- the generated 3D virtual image is transmitted to each vehicle 10 and used for navigation control. Therefore, each vehicle 10 can share the same 3D virtual image information without generating the 3D virtual image information in each vehicle 10.
- the information on the driving obstacle 5 or the information on the 3D virtual image of the road 9 transmitted to the vehicle 10 side is used for the navigation control operation, but the present invention is not limited to such an example.
- the fault information receiving unit 58 integrally controls the automatic driving of the received driving fault 5 information or 3D virtual image information of the road 9. May be sent to.
- the integrated control device uses the information on the traveling obstacle 5 or the information on the 3D virtual image of the road 9 together with the information acquired by the camera or sensor mounted on the vehicle 10 to The angle or the braking force may be controlled.
- SYMBOLS 1 Vehicle navigation system, 5 ... Running obstacle, 9 ... Road, 9a ... 1st lane, 9b ... 2nd lane, 10 ... Vehicle, 50 ... In-vehicle Control device, 52 ... communication unit, 54 ... running state detection unit, 56 ... position information acquisition unit, 58 ... failure information reception unit, 60 ... data transmission unit, 64 ... navigation Control unit, 100... Travel obstacle detection device, 101... Communication unit, 103... Data acquisition unit, 105 .. fault information generation unit, 107.
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Abstract
Description
まず、図1を参照して、本実施形態に係る車両ナビゲーションシステム1の概要を説明する。本実施形態に係る車両ナビゲーションシステム1は、道路9を走行中の車両10a,10b,10c,10d(以下、特に区別することを要しない場合には車両10と表記する)が走行障害検出装置100と無線通信を行い、進行方向の前方にある走行障害5の情報を事前に取得して車両10のナビゲーション動作を行うシステムである。走行障害検出装置100は、走行中の車両10から少なくとも位置情報を含むデータを受信し、これらのデータに基づいて走行障害情報を生成し、車両10に送信する。走行障害検出装置100は、例えばクラウドサーバである。
次に、図2を参照して、本実施形態に係る車両ナビゲーションシステム1の車載制御装置50を搭載した車両10の構成例を説明する。車両10は、車載制御装置50を備える。車載制御装置50は、車両10に搭載された各種のセンサあるいは検出装置(以下、単に「検出器」ともいう。)の信号を受信し、得られた情報を走行障害検出装置100に送信する。また、車載制御装置50は、走行障害検出装置100から走行障害情報を受信し、車両10のナビゲーション動作を行う。
次に、図3を参照して、本実施形態に係る車両ナビゲーションシステム1の車載制御装置50の構成例を説明する。それぞれの車両10(10a,10b,10c,10d)に搭載された車載制御装置50(50a,50b,50c,50d)は、通信部52と、走行状態検出部54と、位置情報取得部56と、障害情報受信部58と、データ送信部60と、記憶部62と、ナビゲーション制御部64とを備える。車載制御装置50はCPU(Central Processing Unit)又はMPU(Micro Processing Unit)等のプロセッサを含む。また、車載制御装置50の一部又は全部はCPUやMPU等のプロセッサにより構成される以外に、ファームウェア等の更新可能なもので構成されていてもよく、またCPU等からの指令によって実行されるプログラムモジュール等であってもよい。また、車載制御装置50は、互いに通信可能な複数の制御装置により構成されていてもよい。
次に、図3を参照して、本実施形態に係る走行障害検出装置100の構成例を説明する。走行障害検出装置100は、通信部101と、データ取得部103と、障害情報生成部105と、障害情報送信部107と、記憶部109とを備える。走行障害検出装置100は、CPU又はMPU等のプロセッサを含む。また、走行障害検出装置100の一部又は全部はCPUやMPU等のプロセッサにより構成される以外に、ファームウェア等の更新可能なもので構成されていてもよく、またCPU等からの指令によって実行されるプログラムモジュール等であってもよい。また、走行障害検出装置100は、互いに通信可能な複数の制御装置により構成されていてもよい。
次に、本実施形態に係る車両ナビゲーションシステム1の動作例を説明する。
図4は、車載制御装置50によるデータ送信処理を示すフローチャートである。
まず、車載制御装置50の走行状態検出部54は、自車両10の走行状態を検出する(ステップS31)。具体的に、走行状態検出部54は、車両10に備えられた回転センサ13、衝撃センサ15、撮像ユニット22、加速度センサ24、舵角センサ34及びブレーキ制御ユニット40から出力される信号あるいは情報を取得する。また、走行状態検出部54は、取得した信号あるいは情報に基づいて、舵角、それぞれの車輪11が受ける衝撃の大きさ、それぞれの車輪11の回転数、車速、車両10の傾き、それぞれの車輪11のスリップ、それぞれの車輪11に生じているブレーキ力を求める。これらの走行状態の幾つかは省略されてもよい。
図5は、走行障害検出装置100による走行障害検出処理を示すフローチャートである。
まず、走行障害検出装置100のデータ取得部103は、少なくとも車両10の位置情報を含むデータを車載制御装置50から受信する(ステップS11)。本実施形態において、データ取得部103は、車両10の位置情報と併せて走行状態の情報を含むデータを受信する。データ取得部103は、車載制御装置50を搭載した複数の車両10からデータを受信する。データ取得部103は、受信した位置情報及び走行状態の情報を含むデータを記憶部109に記憶する。
走行障害検出装置100のデータ取得部103が車載制御装置50からデータを受信する間隔や、走行障害送信部107が車載制御装置50に走行障害5の情報あるいは道路9の状態の情報を送信する間隔は、適宜変更されてもよい。
まず、走行障害検出装置100のデータ取得部103はあらかじめ設定された受信間隔で車載制御装置50から少なくとも車両10の位置情報と走行状態の情報を含むデータを受信する(ステップS61)。
図7は、車載制御装置50によるナビゲーション動作処理の一例を示すフローチャートである。
まず、車載制御装置50の障害情報受信部58は、走行障害検出装置100から送信されてくる走行障害5の情報を受信する(ステップS31)。この走行障害5の情報は、道路9上の走行障害5の位置を具体的に示す情報を含む。例えば走行障害5の情報は、片側二車線以上の道路9の場合、走行障害5がどの車線に存在するのかといった情報や、あるいは、走行障害5が道路9の中央、右側、左側のいずれの位置に存在するのかといった情報を含む。障害情報受信部58は、車両10の走行中に所定の時間間隔で送信されてくる走行障害5の情報を受信してもよく、ドライバ等の搭乗者が車両ナビゲーションシステム1の目的地を設定したときに走行障害検出装置100に対して走行障害5の情報の送信を要求し、受信してもよい。さらに障害情報受信部58は、走行障害5の情報と併せて道路9の状態の3Dバーチャル画像の情報を受信してもよい。
まず、ナビゲーション制御部64は、自車両10の進行方向前方に走行障害5が存在するか否かを判別する(ステップS51)。具体的に、ナビゲーション制御部64は、自車両10が走行する道路9上の前方に走行障害5が存在するか否かを判別する。自車両10の進行方向前方に走行障害5が存在しない場合(S51/No)、ナビゲーション制御部64は、スタートに戻ってステップS51の判別を繰り返す。
以上説明したように、本実施形態に係る走行障害検出装置100は、車両10から受信した位置情報の履歴から求められる車両10の走行軌跡に基づいて走行位置の周囲の走行障害情報を生成し、車両10に搭載された車載制御装置50に送信する。走行障害検出装置100は、車両10の走行軌跡に基づいて走行障害5の情報を生成することから、走行障害5の位置を適切に検出することができる。
Claims (8)
- 少なくとも車両の位置情報を含むデータを車載制御装置から受信するデータ取得部と、
受信した前記位置情報の履歴から求められる前記車両の走行軌跡に基づいて走行位置の周囲の走行障害情報を生成する障害情報生成部と、
生成した前記走行障害情報を車載制御装置に送信する障害情報送信部と、
を備える、走行障害検出装置。 - 前記障害情報生成部は、前記車両の走行軌跡と道路地図の情報とを統合して道路に存在する走行障害情報を生成する、請求項1に記載の走行障害検出装置。
- 前記障害情報生成部は、あらかじめ設定した所定期間ごとに、複数の車載制御装置から受信した前記データに基づいて前記走行障害情報を生成する、請求項1又は2に記載の走行障害検出装置。
- 前記障害情報生成部は、前記所定期間内に受信したデータ数に基づいて前記データを受信する間隔を変更する、請求項3に記載の走行障害検出装置。
- 前記障害情報生成部は、前記所定期間内に受信した前記データに基づいて前記走行障害情報を生成した後、前記走行障害情報の生成に用いた前記データを消去する、請求項3又は4に記載の走行障害検出装置。
- 前記データ取得部は、前記車両の走行状態の情報をさらに含むデータを受信し、
前記障害情報生成部は、前記走行軌跡の情報及び前記走行状態の情報に基づいて前記走行障害情報を生成する、請求項1~5のいずれか1項に記載の走行障害検出装置。 - 前記走行状態の情報が、ステアリングホイールの舵角の情報、車輪の回転数の情報、車速の情報、車輪の衝撃監視装置に生じた衝撃の情報、車両の傾斜角の情報、車輪のスリップ量の情報又は車輪のブレーキ力の情報のうちの少なくとも一つの情報を含む、請求項6に記載の走行障害検出装置。
- 請求項1~7のいずれか1項に記載の走行障害検出装置と、
自車両の位置情報を取得する位置情報取得部、少なくとも前記位置情報を含むデータを前記走行障害検出装置に送信するデータ送信部、前記走行障害検出装置から走行障害情報を受信する障害情報取得部、及び前記走行障害情報に基づいてナビゲーション動作を行うナビゲーション制御部、を有する車載制御装置と、
を備える、車両ナビゲーションシステム。
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JP7401217B2 (ja) | 2019-07-29 | 2023-12-19 | 京セラ株式会社 | 基地局、交通通信システム、及び交通管理方法 |
WO2022209607A1 (ja) * | 2021-03-29 | 2022-10-06 | 本田技研工業株式会社 | 情報処理装置、車両、走行支援方法および走行支援プログラム |
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JPWO2018225347A1 (ja) | 2020-03-19 |
EP3637385A4 (en) | 2020-07-01 |
CN110998685B (zh) | 2023-02-14 |
CN110998685A (zh) | 2020-04-10 |
EP3637385A1 (en) | 2020-04-15 |
US20200166360A1 (en) | 2020-05-28 |
JP6866479B2 (ja) | 2021-04-28 |
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