JP2006290276A - On-vehicle drive recorder, and on-vehicle navigation system having the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an on-vehicle drive recorder, and an on-vehicle navigation system having the same capable of reliably preserving an image of good visibility, and accordingly, capable of achieving an adequate demonstration traveling and a route guide by using the preserved image of good visibility. <P>SOLUTION: A control means is provided, which is capable of performing the control to preferentially save the image of better visibility by comparing information on other vehicles around when picking up the acquired image with information on peripheral vehicles when picking up the already-saved image when an image picked by a camera 5 mounted on a self vehicle is acquired at the same traveling point as that the traveling point where the already-saved image is picked up. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an in-vehicle drive recorder and an in-vehicle navigation system provided with the same, and more particularly to an in-vehicle drive recorder suitable for storing an image taken at a travel point of a vehicle by a camera mounted on the vehicle. The present invention relates to an in-vehicle navigation system provided with this.

  Conventionally, an in-vehicle drive recorder has been used as a device for analyzing the cause of occurrence of a vehicle accident.

  This in-vehicle drive recorder can analyze the recorded traveling state by recording the traveling state of the vehicle such as the vehicle speed, acceleration and steering angle before and after the occurrence of the accident.

  Also, in recent years, a camera that captures the surroundings of the vehicle is installed, and by recording and storing images of the surroundings of the vehicle before and after the occurrence of the accident taken by this camera, the running state at the time of the accident is further detailed. In-vehicle drive recorders that can be analyzed have come to be adopted.

  Furthermore, in the future, it is conceivable to use the captured image of the camera stored in such an in-vehicle drive recorder for demonstration driving of the navigation device and route guidance.

  Here, in the demonstration driving, when it is assumed that the host vehicle actually travels on the set route, the scenery that can be seen from the driver's seat at each driving point on the set route is displayed on the display unit. In other words, the user can grasp the advance method to the destination in advance by an image before departure or at the time of rest by using this demonstration run.

  Therefore, when using the captured image of the camera for the demonstration traveling, the captured image corresponding to the virtual (not actually traveling) traveling point on the set route is the progress of the demonstration traveling, that is, the virtual traveling point. As the user moves, the images are sequentially displayed on the display unit of the navigation device, and the user can experience a more realistic demonstration run by using a live-action image.

  In addition, when the captured image of the camera is used for route guidance, when the vehicle actually travels on the set route, the captured image corresponding to the actual travel point on the route is moved As a result, the images are sequentially displayed on the display unit, and the user can receive more realistic route guidance by using the live-action image.

Japanese Patent Laid-Open No. 09-14976 JP 09-35177 A

  By the way, as described above, in the in-vehicle drive recorder that stores the captured image of the camera, after the captured image of the camera captured at a certain traveling point is stored, the captured image newly captured at the same traveling point is stored. In the case of obtaining, it is conceivable to always save a new photographed image and delete the existing photographed image.

  However, there are cases where a new captured image is an image in which there are many vehicles in the vicinity and road visibility is poor.

  Therefore, conventionally, there is a possibility that an image with a good prospect that can easily grasp a road, a right / left turn point, or the like cannot be reliably stored.

  Therefore, the present invention has been made in view of such points, and can reliably store images with a good line of sight. It is an object of the present invention to provide an in-vehicle drive recorder capable of realizing route guidance and an in-vehicle navigation system including the same.

  In order to achieve the above-described object, a feature of the in-vehicle drive recorder according to the present invention is an in-vehicle drive recorder that stores an image taken at a travel point of the vehicle by a camera mounted on the vehicle, Control means for performing control for storing the image, and the control means is present around the vehicle when the image is taken when the image taken at the travel point of the vehicle is saved. In addition, there is a control for storing information on the surrounding vehicles in association with the image, and an image captured by a camera mounted on the host vehicle at the same travel point as the travel point where the already stored image was captured. When the acquired image is acquired, information on surrounding vehicles existing around the own vehicle when the acquired image is captured and the already stored image are captured. And the control for preferentially storing the image with the better line-of-sight out of the two images of the already stored image and the acquired image. It is in the point provided with the control means to perform.

  And according to such a structure, when the image (henceforth a "photographed image") image | photographed with the camera in the same driving | running | working point by the control by a control means was obtained, the one where a prospect is favorable Images can be saved with priority.

  The on-vehicle drive recorder according to the present invention is characterized in that the control means performs control for preferentially storing the image with the smaller number of surrounding vehicles as the image with better visibility. .

  And according to such a structure, when the picked-up image of the camera in the same driving | running | working point is obtained by control by a control means, it is possible to preferentially preserve | save the image with the smaller number of surrounding vehicles It becomes.

  Furthermore, the feature of the in-vehicle drive recorder according to the present invention is that, among the two images, at least information on surrounding vehicles that existed around the own vehicle when the acquired image was taken is This is a detection result of the surrounding vehicle detection means for detecting information of surrounding vehicles existing in the vicinity.

  And according to such a structure, it becomes possible to perform control by a control means based on the detection result of a surrounding vehicle detection means.

  Furthermore, the feature of the in-vehicle drive recorder according to the present invention is that an already stored image is an image captured by a camera mounted on another vehicle, and an already stored image is captured. The information on the surrounding vehicle is that it is information on the surrounding vehicle existing around the other vehicle when the image taken by the camera mounted on the other vehicle is taken.

  According to such a configuration, the captured image of the camera mounted on the other vehicle and the information on the surrounding vehicle existing around the other vehicle when the image was captured are acquired by inter-vehicle communication or the like. By storing the images, it is possible to effectively use the captured image of the camera mounted on the other vehicle and information on the surrounding vehicles of the other vehicle when the image is captured.

  A feature of the in-vehicle drive recorder according to the present invention is that the surrounding vehicle detection means is a radar.

  And according to such a structure, it becomes possible to detect the information of a surrounding vehicle simply and reliably by radar.

  Furthermore, the features of the in-vehicle navigation system according to the present invention include an in-vehicle drive recorder that stores an image taken at a travel point of the vehicle by a camera mounted on the vehicle, and an image stored in the in-vehicle drive recorder. Is a vehicle-mounted navigation system including a vehicle-mounted navigation device capable of displaying a vehicle during a demonstration run or route guidance, wherein the vehicle-mounted drive recorder performs control for storing the image Control means, and when the control means saves the image taken at the travel point of the vehicle, at least information on the surrounding vehicles that existed around the vehicle when the image was taken , The control for storing the image in association with the image, and the same traveling point as the traveling point where the already stored image was taken When an image captured by a camera mounted on the host vehicle is acquired at a point, information on surrounding vehicles that existed around the host vehicle when the acquired image was captured, Compare the information of the surrounding vehicle when the stored image was taken, and give priority to the image with the better out of the two images of the already stored image and the acquired image. And control for storage.

  According to such a configuration, when the vehicle-mounted drive recorder obtains a camera-captured image at the same travel point under the control of the control means, the image with the better view is preferentially stored. It becomes possible to do.

  As a result, an image with a good view can be reliably stored in the in-vehicle drive recorder, and the navigation apparatus can perform an appropriate demonstration run and route guidance using the stored image with a good view.

  Furthermore, a feature of the in-vehicle navigation system according to the present invention is that the control means performs control for preferentially storing the image with the smaller number of surrounding vehicles as the image with better visibility. is there.

  According to such a configuration, when the in-vehicle drive recorder obtains a captured image of the camera at the same traveling point by the control of the control means, the image having the smaller number of surrounding vehicles is prioritized. Can be saved.

  In addition, a feature of the in-vehicle navigation system according to the present invention is that the information on the surrounding vehicle that was present around the own vehicle when the acquired image is taken out of the two images is the own vehicle. This is a detection result of the surrounding vehicle detection means for detecting information of surrounding vehicles existing around the vehicle.

  And according to such a structure, a vehicle-mounted drive recorder can control by a control means based on the detection result of a surrounding vehicle detection means.

  Furthermore, a feature of the in-vehicle navigation system according to the present invention is that an already stored image is an image captured by a camera mounted on another vehicle, and the previously stored image is captured. The information on the surrounding vehicle is that it is information on the surrounding vehicle existing around the other vehicle when the image taken by the camera mounted on the other vehicle is taken.

  According to such a configuration, the captured image of the camera mounted on the other vehicle and the information on the surrounding vehicle existing around the other vehicle when the image was captured are acquired by inter-vehicle communication or the like. By storing the image, it is possible to effectively use the captured image of the camera mounted on the other vehicle and the information on the surrounding vehicle when the image is captured at the time of demonstration driving or route guidance. Become.

  Furthermore, the on-vehicle navigation system according to the present invention is characterized in that the surrounding vehicle detection means is a radar.

  And according to such a structure, it becomes possible to detect the information of a surrounding vehicle simply and reliably by radar.

  The vehicle-mounted drive recorder according to the present invention can preferentially store an image with a better line of sight when a captured image of the camera at the same travel point is obtained by the control of the control unit. As a result, it is possible to reliably store an image with a good line of sight, and to realize appropriate demonstration driving and route guidance using the stored image with a good line of sight.

  In addition, according to the in-vehicle drive recorder according to the present invention, when a captured image of the camera at the same traveling point is obtained by the control by the control means, the image having the smaller number of surrounding vehicles is preferentially stored. As a result, it is possible to reliably store an image with a good view by simpler control.

  Furthermore, according to the in-vehicle drive recorder according to the present invention, it is possible to perform control by the control unit based on the detection result of the surrounding vehicle detection unit, and as a result, it is possible to more reliably store an image with a good view. .

  Furthermore, according to the in-vehicle drive recorder according to the present invention, the captured image of the camera mounted on the other vehicle and the information on the surrounding vehicles that existed around the other vehicle when the image was captured are As a result of being able to effectively use the captured image of the camera mounted on the other vehicle and the information on the surrounding vehicles when the image was captured by acquiring and storing by communication etc., the prospect is good More images can be stored more efficiently, and as a result, more appropriate demo driving and route guidance can be realized using more images with good visibility.

  Moreover, according to the vehicle-mounted drive recorder which concerns on this invention, the information of a surrounding vehicle can be detected simply and reliably by radar, As a result, the image with a favorable view can be preserve | saved more simply and reliably.

  Furthermore, according to the in-vehicle navigation system according to the present invention, when the in-vehicle drive recorder obtains a captured image of the camera at the same traveling point by the control of the control means, the image with the better prospect is displayed. As a result of being able to save with priority, it is possible to reliably store images with a good view in the in-vehicle drive recorder, and the navigation device can use the stored images with a good view to perform appropriate demonstration driving and routes. Guidance can be provided.

  Furthermore, according to the in-vehicle navigation system according to the present invention, the in-vehicle drive recorder has a smaller number of surrounding vehicles when the image taken by the camera at the same travel point is obtained by the control of the control means. As a result, it is possible to save an image with a good view with certainty by simpler control.

  In addition, according to the in-vehicle navigation system according to the present invention, the in-vehicle drive recorder can perform control by the control unit based on the detection result of the surrounding vehicle detection unit, so that an image with a good outlook is mounted on the vehicle. The data can be stored more securely in the drive recorder, and the navigation device can perform more appropriate demonstration driving and route guidance using the stored image.

  Furthermore, according to the vehicle-mounted navigation system according to the present invention, the vehicle-mounted drive recorder has a captured image of a camera mounted on the other vehicle and a surrounding vehicle that was present around the other vehicle when the image was captured. By acquiring and storing the information by inter-vehicle communication or the like, it is possible to effectively use the captured image of the camera mounted on the other vehicle and the information on the surrounding vehicles of the other vehicle when the image is captured. As a result, more images with good prospects can be efficiently stored in the in-vehicle drive recorder, and the navigation device can use the stored more images with good prospects for more appropriate demonstration driving and routes. Guidance can be provided.

  Furthermore, according to the vehicle-mounted navigation system according to the present invention, information on surrounding vehicles can be detected easily and reliably by the radar, and as a result, an image with a good view can be stored more easily and reliably. .

  Hereinafter, an embodiment of an in-vehicle drive recorder according to the present invention and an in-vehicle navigation system provided with the same will be described with reference to FIGS. 1 to 5.

  As shown in FIG. 1, the in-vehicle navigation system 1 in the present embodiment has an in-vehicle drive recorder 2.

  The in-vehicle drive recorder 2 includes a storage unit 3 that can store information, and a control unit 4 as a control unit that controls storage of information by the storage unit 3.

  The in-vehicle navigation system 1 has a camera 5 connected to the in-vehicle drive recorder 2, and this camera 5 travels along the own vehicle such as a road, an intersection, and a vehicle at each travel point of the own vehicle. An image around the vehicle on the front side in the direction is taken, and the taken image is output to the in-vehicle drive recorder 2.

  The captured image of the camera 5 output to the in-vehicle drive recorder 2 is temporarily stored in the control unit 4 and then definitely stored in the storage unit 3 under the control of the control unit 4.

  The storage unit 3 may be a hard disk drive, for example.

  Further, the in-vehicle navigation system 1 has an image radar 6 as a surrounding vehicle detection means connected to the in-vehicle drive recorder 2.

  When the camera 5 captures an image of the surroundings of the host vehicle, the image radar 6 detects information on surrounding vehicles (hereinafter referred to as “neighboring vehicle information”) existing around the host vehicle, and the detection result is obtained. The data is output to the in-vehicle drive recorder 2.

  In the present embodiment, the controller 4 saves the surrounding vehicle information detected by the image radar 6 when the captured image of the camera 5 is stored in the storage unit 3 when the captured image is captured. Control for storing image information in association with the captured image is performed.

  Accordingly, the storage unit 3 stores the captured image of the camera 5 and the surrounding vehicle information when the captured image is captured in association with each other.

  The surrounding vehicle information may be information that can grasp at least the number of surrounding vehicles, but in addition to the number of surrounding vehicles, for example, other information such as the vehicle height and width of the preceding vehicle is grasped. It may be information that can be done.

  The in-vehicle navigation system 1 has a travel point detection unit 7 connected to the in-vehicle drive recorder 2, and the travel point detection unit 7 is the host vehicle when the captured image of the camera 5 is captured. The travel point is detected, and the detection result is output to the in-vehicle drive recorder 2.

  The traveling point detection unit 7 may be, for example, a GPS receiver, or may be a combination of various sensors such as a vehicle speed sensor and a gyro sensor, or a GPS receiver and various sensors. Both may be provided.

  When the control unit 4 saves the captured image of the camera 5 in the storage unit 3, the control unit 4 determines the travel point of the host vehicle detected by the travel point detection unit 7 when the captured image is captured. As additional information, control for saving the image in association with the captured image is performed.

  Thereby, the storage unit 3 stores the captured image of the camera 5 and the traveling point of the host vehicle when the captured image is captured in association with each other.

  Furthermore, in this embodiment, the control unit 4 is the same travel point (in other words, the travel point where the captured image (hereinafter referred to as “stored image”) already stored in the storage unit 3 is captured. When a captured image (hereinafter referred to as “newly acquired image”) of the camera 5 mounted on the host vehicle is acquired at the same shooting position), the following control is performed.

  That is, first, when a newly acquired image captured at the same travel point as the travel point where the stored image is captured is acquired, the control unit 4 firstly includes surrounding vehicle information when the newly acquired image is captured. The (additional information) is compared with the surrounding vehicle information (additional information) when the stored image is taken.

  Whether or not the stored image and the newly acquired image are images taken at the same travel point is based on, for example, the information on the travel point of the host vehicle stored in association with each image described above. Judgment can be made.

  Next, based on the comparison, the control unit 4 takes a captured image with a smaller number of surrounding vehicles as an image with a better out of the two captured images of the already-stored image and the newly acquired image. Control is given to save the file with priority.

  With this control, when a captured image of the camera 5 at the same travel point is obtained, the storage unit 3 preferentially stores the captured image with the smaller number of surrounding vehicles.

  On the other hand, the captured image having the larger number of surrounding vehicles is discarded by the control unit 4 in the case of a newly acquired image and is deleted from the storage unit 3 in the case of an already stored image. Yes.

  As a result, a captured image with a good view can be reliably stored by simple control by the control unit 4.

  In addition, in order to determine which of the captured images of the stored image and the newly acquired image has a good outlook, not only the number of surrounding vehicles but also the vehicle height, vehicle width, etc. of the preceding vehicle, for example. You may make it refer to the surrounding vehicle information.

  By doing so, even if the number of surrounding vehicles is the same, for example, it is possible to determine that a captured image with a smaller vehicle height or vehicle width of the preceding vehicle is a captured image with good visibility.

  Furthermore, in the present embodiment, the stored image may be an image taken by a camera mounted on another vehicle.

  That is, as shown in FIG. 1, the in-vehicle navigation system 1 has a communication unit 8 connected to the in-vehicle drive recorder 2.

  The in-vehicle drive recorder 2 can acquire the captured image of the camera of the other vehicle and the surrounding vehicle information of the other vehicle when the image is captured by the inter-vehicle communication by the communication unit 8. ing.

  Thereby, the captured image of the camera of the other vehicle can be effectively used as the stored image, and the surrounding vehicle information of the other vehicle when the stored image is captured is compared with the control unit 4 in the comparison. Can be used effectively.

  In this case, the surrounding vehicle information when the stored image is captured is not the surrounding vehicle information detected by the image radar 6 of the own vehicle but the surrounding vehicle information obtained by inter-vehicle communication.

  Therefore, when using such inter-vehicle communication, the vehicle-mounted navigation system 1 in the present embodiment needs to be mounted on other vehicles.

  When the in-vehicle navigation system 1 is mounted on another vehicle, the in-vehicle navigation system 1 on the other vehicle side also uses the captured image and the surrounding vehicle information stored in the in-vehicle drive recorder 2 on the own vehicle side by inter-vehicle communication. Not to mention what you can do.

  Further, the in-vehicle navigation system 1 has an in-vehicle navigation device 9 connected to the in-vehicle drive recorder 2.

  The in-vehicle navigation device 9 has a navigation CPU 11, and the navigation CPU 11 can read a captured image stored in the in-vehicle drive recorder 2.

  An input unit 12 such as a remote control or a touch panel of the display unit 13 is connected to the navigation CPU 11, and input information such as a desired destination can be set via the input unit 12. .

  The navigation CPU 11 calculates a route to the destination based on the input information, and executes a demonstration run and route guidance along the route calculated by the route calculation.

  A display unit 13 is connected to the navigation CPU 11, and a photographed image read from the in-vehicle drive recorder 2 is appropriately displayed by the control of the navigation CPU 11 on the display unit 13 during demonstration driving and route guidance. It has come to be.

  The navigation CPU 11 is connected to a map data storage unit 15 in which map data is stored. The navigation CPU 11 reads map data stored in the map data storage unit 15 as necessary when performing route guidance, and displays the map on the display unit 13.

  Further, the navigation CPU 11 is connected with a vehicle position detection unit 14 that detects the current position of the vehicle (vehicle position). The detection result of the vehicle position detection unit 14 is obtained when route guidance or map display is performed. Is used as appropriate.

  The own vehicle position detection unit 14 may be, for example, a GPS receiver, or may be a combination of various sensors such as a vehicle speed sensor and a gyro sensor as in the case of the travel point detection unit 7. Alternatively, both a GPS receiver and various sensors may be provided.

  When performing a demonstration run with such a navigation device 9, a route to the destination set via the input unit 12 is calculated by route calculation by the navigation CPU 11.

  Then, the navigation CPU 11 sequentially reads the captured images of the camera 5 corresponding to the calculated virtual travel point on the route from the in-vehicle drive recorder 2 as the demo travel progresses, that is, as the virtual travel point moves. Is displayed on the display unit 13.

  At this time, the in-vehicle drive recorder 2 preferentially stores the captured image of the camera 5 with a small number of surrounding vehicles and a good view, so that a real image with a good view is displayed on the display unit 13. Will be.

  At this time, since the captured image of the camera 5 is stored in the in-vehicle drive recorder 2 in association with the traveling point of the vehicle when the captured image is captured, the captured image corresponding to the virtual traveling point is stored. Can be appropriately read from the in-vehicle drive recorder 2 and displayed on the display unit 13.

  Thereby, the user can surely grasp in advance the method of proceeding to the destination by using a live-action image with a good view.

  Note that the traveling speed of the demonstration run or the like may be freely changed by the user via the input unit 12.

  When the navigation device 9 performs route guidance, the navigation CPU 11 calculates a route to the destination set via the input unit 12, and the host vehicle actually travels on the calculated route. At this time, the captured images of the camera 5 corresponding to the actual travel point on this route (for example, an intersection) are sequentially read from the in-vehicle drive recorder 2 and displayed on the display unit 13 as the travel point moves. become.

  At this time, since the captured image of the camera 5 is stored in the in-vehicle drive recorder 2 in association with the traveling point of the vehicle when the captured image is captured, the captured image corresponding to the actual traveling point is It can be appropriately read from the in-vehicle drive recorder 2 and displayed on the display unit 13.

  Thus, the user can easily confirm whether or not the current traveling of the host vehicle is appropriate with reference to a live-action image with a good view.

  The actual travel point of the host vehicle at the time of route guidance can be detected as the host vehicle position by the host vehicle position detection unit 14.

  Next, as a function of the present embodiment, a series of processes performed by the in-vehicle drive recorder 2 will be described with reference to FIGS.

  In the present embodiment, after starting the processing of the in-vehicle drive recorder 2, first, as shown in step 1 (ST1) of FIG. 2, the control unit 4 creates a newly acquired image as shown in FIG. After acquiring the surrounding vehicle information of the own vehicle when the newly acquired image is taken, the process proceeds to step 2 (ST2).

  In addition, the newly acquired image shown in FIG. 3 is an image with the best prospect that there is no surrounding vehicle.

  Next, in step 2 (ST2), whether or not an already stored image taken at the same travel point as the newly acquired image acquired in step 1 (ST1) is stored in the storage unit 3 by the control unit 4. Determine.

  If such an already stored image is stored, the process proceeds to step 3 (ST3). If not stored, the process proceeds to step 5 (ST5).

  In step 5 (ST5), under the control of the control unit 4, the newly acquired image acquired in step 1 (ST1) and the surrounding vehicle information when this newly acquired image is photographed are stored in association with each other. Save to part 3.

  On the other hand, in step 3 (ST3), the number of surrounding vehicles when the newly acquired image acquired in step 1 (ST1) is captured by the control unit 4 is the number of surrounding vehicles when the stored image is captured. It is determined based on surrounding vehicle information whether it is less than the number of vehicles.

  And, for example, as in the case where the stored image is shown in FIG. 4, the number of surrounding vehicles when the newly acquired image acquired in step 1 (ST1) is captured is the same as that when the stored image is captured. If the number is smaller than the number of surrounding vehicles, the process proceeds to step 4 (ST4), and if not, the process proceeds to step 6 (ST6).

  In the stored image shown in FIG. 4, there are one forward vehicle and one oncoming vehicle, and the number of surrounding vehicles is larger than the newly acquired image shown in FIG. 3.

  Next, in step 6 (ST6), under the control of the control unit 4, the newly acquired image acquired in step 1 (ST1) and the surrounding vehicle information when this newly acquired image is taken are discarded.

  In this case, the stored image is stored with priority over the newly acquired image, and the storage of the stored image is continued.

  On the other hand, in step 4 (ST4), the newly acquired image acquired in step 1 (ST1) is preferentially stored over the already stored image under the control of the control unit 4, as shown in FIG. In the storage unit 3, a newly acquired image is stored in place of the stored image, and the stored image is deleted from the storage unit 3.

  At this time, the storage unit 3 stores the newly acquired image and the surrounding vehicle information of the host vehicle when the newly acquired image is captured in association with the newly acquired image.

  As described above, according to the present embodiment, when a photographed image of the camera 5 at the same traveling point (photographing position) is obtained by the control of the control unit 4, a photographed image with better visibility is obtained. It can be saved with priority.

  As a result, a photographed image with a good view can be reliably stored in the in-vehicle drive recorder 2, and the navigation device 9 can perform a demo run using a real-view image with a good view stored in the in-vehicle drive recorder 2. Route guidance can be performed appropriately.

  In addition, this invention is not limited to embodiment mentioned above, A various change is possible as needed.

  For example, a radar other than the image radar 6 or a means other than the radar may be used as the surrounding vehicle detection means. For example, if the surrounding vehicle information can be directly acquired from the captured image of the camera by the image recognition by the control unit 4 described above, the control unit 4 may be used as the surrounding vehicle detection means.

The block diagram which shows embodiment of the vehicle-mounted drive recorder which concerns on this invention, and a navigation system provided with the same The flowchart which shows embodiment of the vehicle-mounted drive recorder which concerns on this invention The figure which shows typically an example of a newly acquired image in embodiment of the vehicle-mounted drive recorder which concerns on this invention. The figure which shows typically an example of a stored image in embodiment of the vehicle-mounted drive recorder which concerns on this invention. Explanatory drawing which shows replacement of the picked-up image preserve | saved at a memory | storage part in embodiment of the vehicle-mounted drive recorder which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Car navigation system 2 Car drive recorder 3 Memory | storage part 4 Control part 5 Camera 6 Image radar 9 Navigation apparatus

Claims (10)

An in-vehicle drive recorder that stores an image taken at a travel point of the vehicle by a camera mounted on the vehicle,
Control means for performing control for storing the image;
This control means
When storing an image taken at a travel point of the vehicle, at least information on surrounding vehicles existing around the vehicle when the image was taken is stored in association with the image. Control,
When an image photographed by a camera mounted on the host vehicle is acquired at the same travel point as the travel point where the already stored image was captured, the self-contained image is captured when the acquired image is captured. The information on the surrounding vehicles that existed in the vicinity of the vehicle is compared with the information on the surrounding vehicles when the already stored image is taken, and the information on the already stored image and the acquired image is compared. An on-vehicle drive recorder characterized by performing control for preferentially storing an image with a better view of two images.   The in-vehicle drive recorder according to claim 1, wherein the control means performs control for preferentially storing an image having a smaller number of surrounding vehicles as the image having a better view. .   Among the two images, at least information on surrounding vehicles existing around the own vehicle when the acquired image was taken detects information on surrounding vehicles existing around the own vehicle. The in-vehicle drive recorder according to claim 1, wherein the in-vehicle drive recorder is a detection result of a surrounding vehicle detection means. The already stored image is an image taken by a camera mounted on another vehicle,
Peripheral vehicles that existed in the vicinity of the other vehicle when the image captured by the camera mounted on the other vehicle was recorded as information on the surrounding vehicle when the already stored image was captured The in-vehicle drive recorder according to any one of claims 1 to 3, wherein the information is the following information.   The in-vehicle drive recorder according to claim 3 or 4, wherein the surrounding vehicle detection means is a radar. An in-vehicle drive recorder that stores an image taken at a travel point of the vehicle by a camera mounted on the vehicle;
An in-vehicle navigation system comprising an in-vehicle navigation device capable of displaying an image stored in the in-vehicle drive recorder during demonstration driving or route guidance,
The in-vehicle drive recorder is
Control means for performing control for storing the image;
This control means
When storing an image taken at a travel point of the vehicle, at least information on surrounding vehicles existing around the vehicle when the image was taken is stored in association with the image. Control,
When an image photographed by a camera mounted on the host vehicle is acquired at the same travel point as the travel point where the already stored image was captured, the self-contained image is captured when the acquired image is captured. The information on the surrounding vehicles that existed in the vicinity of the vehicle is compared with the information on the surrounding vehicles when the already stored image is taken, and the information on the already stored image and the acquired image is compared. A vehicle-mounted navigation system that performs control for preferentially storing an image with a better view of two images.   The in-vehicle navigation system according to claim 6, wherein the control means performs control for preferentially storing an image having a smaller number of surrounding vehicles as the image having a better view. .   Among the two images, at least information on surrounding vehicles existing around the own vehicle when the acquired image was taken detects information on surrounding vehicles existing around the own vehicle. The in-vehicle navigation system according to claim 6 or 7, wherein the in-vehicle navigation system is a detection result of a surrounding vehicle detection means. The already stored image is an image taken by a camera mounted on another vehicle,
Peripheral vehicles that existed in the vicinity of the other vehicle when the image captured by the camera mounted on the other vehicle was recorded as information on the surrounding vehicle when the already stored image was captured The in-vehicle navigation system according to any one of claims 6 to 8, wherein the information is the following information.   The in-vehicle navigation system according to claim 8 or 9, wherein the surrounding vehicle detection means is a radar.

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