JP2003323699A - Safe driving supporting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a safe driving supporting device capable of displaying proper road guide information under a condition of low visibility. <P>SOLUTION: This device is provided with its own vehicle position detecting means 12 for detecting the position information of its own vehicle, a photographing means 11 for photographing the periphery of its own vehicle, its own vehicle traveling direction arithmetic means 13 for calculating its own vehicle traveling direction information based on the history of its own vehicle position information, a first recording means 14 for recording its own vehicle peripheral video obtained when its own vehicle peripheral video is photographed by the photographing means 11 and its own vehicle position information and its own vehicle traveling direction information by making those pieces of information correspond to each other, and a video reproducing and displaying means 15 for reproducing and displaying its own vehicle peripheral video recorded in the first recording means. The video reproducing and displaying means 15 reproduces and displays its own vehicle peripheral video corresponding to its own vehicle position at the time of reproduction and its own vehicle traveling direction at the time of reproduction among its own vehicle peripheral videos recorded in the first recording means. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a safe driving support device for assisting a safe driving of a driver by using photographing means such as a camera.

[0002]

2. Description of the Related Art A conventional safe driving support device displays a video image of the surrounding environment of a vehicle using a camera or the like as a vehicle interior display as a useful accident prevention means especially in an intersection environment where an accident such as an encounter accident is likely to occur. A device for improving the visibility of the driver by displaying the image on a video reproduction display means such as is commercialized. Such a safe driving assistance device can be used, for example, as shown in FIG.
A camera 81 that is arranged in the passenger compartment of
It is composed of two cameras 82 and 83 which are respectively arranged on the left and right sides of the front grille and photograph the front side of the vehicle. Further, the images photographed by the three cameras in this way are shown in FIG. 11 (b). As shown in FIG. In this system, the other vehicle 84 approaching the vehicle, the building 86 located on the roadside, or the intersection environment such as the road width can be instantly viewed, so that the driver can obtain more environmental information around the vehicle. It is possible to improve the safety during driving.

[0003]

However, in the above-mentioned conventional safe driving support device, when the image to be used is taken under the condition of low visibility with respect to the surrounding environment of the vehicle, such as at night or in rainy weather, There was a problem that it was difficult to obtain environmental information around the vehicle.

It is an object of the present invention to provide a safe driving support device which allows a driver to obtain appropriate road guidance information even under environmental conditions with low visibility.

[0005]

In order to solve the above-mentioned problems, a safe driving support device of the present invention is a vehicle position detecting means for detecting position information of the vehicle, and a photographing for photographing the periphery of the vehicle. Means, the own vehicle traveling direction calculation means for calculating the traveling direction information of the own vehicle based on the history of the own vehicle position information detected by the own vehicle position detecting means, and the own vehicle surrounding image taken by the photographing means. A first recording unit that records the own vehicle surroundings image, the own vehicle position information, and the own vehicle traveling direction information at the time, and reproduces and displays the own vehicle surroundings image recorded in the first recording unit. Image reproduction display means for reproducing the own vehicle position at the time of reproduction and the traveling direction of the own vehicle at the time of reproduction of the vehicle surroundings image recorded by the first recording means. Playback display around the vehicle Is shall.

With this configuration, when the vehicle travels at the same intersection after recording, a recorded image corresponding to the vehicle position information and the vehicle traveling direction can be reproduced and displayed.

Further, the safe driving support device of the present invention, when reproducing the image of the surrounding area of the vehicle recorded in the first recording means, the vehicle position information and the vehicle traveling direction information at that time, and the photographing means. The second recording unit has a second recording unit for recording the photographed image of the surroundings of the own vehicle in association with the second recording unit corresponding to the own vehicle position information and the own vehicle traveling direction information recorded in the first recording unit. It is possible to overwrite the own vehicle peripheral image recorded in the means on the first recording means.

With this configuration, the recorded image can be overwritten according to the driver's preference.

Further, the safe driving support device of the present invention has a vehicle speed detecting means for detecting vehicle speed information according to the traveling speed of the own vehicle, and the first recording means or the second recording means is the above-mentioned The own vehicle surrounding image, the own vehicle position information, the own vehicle traveling direction information, and the vehicle speed information when the own vehicle surrounding image is taken by the image capturing means are recorded in association with each other, and the reproducing means records the vehicle speed information. Accordingly, the surrounding image of the own vehicle is fast-forwarded to reproduce or temporarily stop the surrounding image of the own vehicle.

With this configuration, even if the vehicle stops during image recording or reproduction, a reproduced image with a small deviation from the actual field of view of the traveling vehicle can be displayed. The vehicle has a steering angle detecting means for detecting a steering angle, and the own vehicle traveling direction computing means computes vehicle traveling direction information from vehicle position information at the start of image recording and steering angle information detected by the steering angle detecting means. To do.

With this configuration, it is possible to improve the accuracy when determining the traveling direction.

The safe driving support device of the present invention has an intersection information detecting means for detecting a specific object existing at the intersection, and when the intersection information detecting means detects the specific object existing at the intersection, When the image corresponding to the position information of the intersection does not exist in the first recording means, the undetected state is predetermined in the intersection target detecting means after transmitting the first operation signal and transmitting the first operation signal. When the time is continued, an operation signal for stopping the recording operation by the first recording means is transmitted, and when the first recording means has an image corresponding to the position information of the point, the image reproduction is performed. An operation signal for starting the image reproduction / display operation of the surroundings of the own vehicle by the display means is transmitted by the intersection target detection, and the undetected state in the intersection target detection means continues for a predetermined time. Has a configuration for transmitting an operation signal for stopping the image reproduction operation of nearby vehicles according to the image reproducing display means when.

With this configuration, the driver can concentrate on the driving operation of the vehicle without worrying about the input operation to the safe driving support device, so that the safety can be further improved. The safe driving assistance device of the present invention comprises: a first operation signal transmitting means for transmitting to the first recording means a first operation signal for starting the recording operation by the first recording means; Second operation signal transmitting means for transmitting a second operation signal for stopping the recording operation by the recording means, and a third operation signal for starting the image reproduction and display operation around the own vehicle by the image reproduction and display means. It has a third operation signal transmitting means for transmitting an operation signal and a fourth operation signal transmitting means for transmitting a fourth operation signal for stopping the image reproducing operation of the periphery of the vehicle by the image reproducing and displaying means. It is configured.

With this configuration, it is possible to start or stop the video recording operation and the video reproducing operation in response to the request of the driver or the operator of the safe driving support device.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram of the safe driving support device according to the first embodiment of the present invention.

Referring to FIG. 1, in the safe driving support apparatus according to the present embodiment, a photographing means 11 such as a camera photographs the road environment in front of or around the host vehicle such as on a dashboard or the front grill of the vehicle. The vehicle surroundings image captured by the image capturing means 11 and the GPS (Global Position).
ingSystem) own vehicle position information such as latitude and longitude information detected using the own vehicle position detecting means 12 such as an antenna, and own vehicle position direction calculating means 13 using the history of the own vehicle position information described above. Corresponding to the traveling direction information of the vehicle, they are electrically connected so that they can be recorded in the first recording means 14. Also, the first
The first recording means 14 is configured so that the data of the surrounding image of the vehicle (hereinafter, recorded image) recorded in the recording means 14 is transmitted to the image reproducing / displaying means 15 and the recorded image is reproduced and displayed.
And the video reproduction display means 15 are electrically connected,
Control means 16 for controlling the operation of the entire safe driving support device
However, the above-mentioned photographing means 11, own vehicle position detection means 12,
The vehicle traveling direction calculation means 13, the first recording means 14, and the video reproduction display means 15 are electrically connected to the respective means.

In addition, the operator of the safe driving support device is
A recording / storing start switch (first operation signal transmission means) 17 for transmitting an operation signal for starting the recording operation in the recording means 14 and an operation signal for stopping the recording operation in the first recording means 14. And a recording / storing stop switch (second operation signal transmitting means) 18 for transmitting an operation signal, and a recorded image reproduction start switch (third operation) for transmitting an operation signal for starting the image reproduction display operation in the image reproduction display means 15. A signal transmission means) 19 and a recorded video reproduction stop switch (fourth operation signal transmission means) 20 for transmitting an operation signal for stopping the video reproduction operation in the video reproduction display means 15 are connected to the control means 16. And each operation signal is input to the control means 16. When the operation signal transmitted from each of the operation signal generating means is input to the control means 16, the control means 16 determines the presence or absence of the operation signal and performs a control operation to shift to various operations.

Further, the direction indicator 21 and the control means are provided so that the control means 16 can detect the traveling direction information of the own vehicle from the direction indicator 21 for notifying the driver of the right turn or left turn of the running vehicle. 16 is electrically connected.

Traffic information detecting means for photographing the traffic lights and road signs at intersections using a photographing means such as a camera and subjecting the photographed video to image processing to detect the presence of the traffic lights and road signs. 101 and a steering angle sensor 102 for detecting steering information of the own vehicle are in a state in which they can be electrically connected to the control means 16.

The operation of the safe driving support device configured as described above will be described with reference to FIGS. 2 to 4.

In the following description, the position of the vehicle is defined by (latitude Φi, longitude θi) as shown in FIG. 2 (i is an arbitrary natural number).

Since the operation of this embodiment is roughly divided into "video recording" and "video playback", the operation during video recording will be described first with reference to FIG. Further, here, in order to simplify the description, a case where one image capturing unit is installed on the dashboard will be described. (It is also possible to handle a more diversified image of the surroundings of the own vehicle by using a plurality of photographing means.) First, the own vehicle approaches the intersection, and the operator of the safe driving support device (hereinafter, simply the operator 4) reaches the position (Φ0, θ0) at which the user wants to start saving the image around the vehicle, the record save start switch 17 is turned on (S300). Then, an operation signal for starting the video recording operation of the first recording means 14 is transmitted from the recording / storing start switch 17 to the control means 16, and the control means 16 receives the operation signal and the memory in the control means 16 receives the operation signal. The position information (Φ0, θ0) is recorded in and the recording operation of recording the image of the vehicle surroundings imaged by the image capturing unit 11 in the first recording unit 14 is started (S301).

Next, when the vehicle passes the intersection and the operator wants to finish recording the image, the record saving stop switch 18
Is turned on (S302). Then, the own vehicle position information (Φi, θi) at that point is stored in the built-in memory of the control means 16, and the image recording operation of the surrounding image of the own vehicle by the first recording means 14 is ended (S303).

After that, the own vehicle traveling direction calculating means 13 calculates the traveling direction of the vehicle in the image recorded as described above (S304). Here, as the calculation of the traveling direction, for example, as shown in FIG. 2, the vehicle goes straight, makes a right turn, or makes a left turn by using the history of the latitude and longitude information at the start and end of the recording of the video recording operation. Is calculated.

The image of the surroundings of the own vehicle recorded as described above, the own vehicle position information at the start of recording of this image, and the own vehicle traveling direction information obtained by the own vehicle traveling direction calculation means are associated with each other. The data is recorded and stored in the first recording means 14 (S305).

Here, the image capturing operation of the image around the own vehicle may be always performed while the own vehicle is traveling, or the operator instructs the safe driving support device to start the image capturing at a desired timing. Dedicated switch means may be provided so that the shooting operation can be synchronized with the recording operation by starting the shooting operation at the same time as the video recording start and stopping the shooting operation at the same time as the video recording stop. Good. That is, it suffices that the image pickup operation of the image around the own vehicle is performed by the image pickup means 11 at the time when the operator requests the image.

Next, the operation during video reproduction will be described with reference to FIG.

When the intersection approaches during traveling, the recorded image reproduction start switch 19 is turned on at a desired location (S4).
00). Then, the latitude and longitude representing the vehicle position are detected, and it is searched whether or not the vehicle periphery recording image including the latitude and longitude data located within a predetermined range from the vehicle position is already recorded in the first recording means 14 ( S401). Then, it is determined whether or not the corresponding recorded video is stored (S402), and when it is determined that the corresponding recorded video is not stored, a display such as "no playback video" is displayed on the video playback display means 15, for example. Then, the reproduction operation is completed (S4).
03).

On the other hand, when it is determined that the corresponding recorded image is stored, the operation goes to a detection operation for detecting whether or not the turning indicator 21 of the own vehicle is lit and the lighting direction, and the turning indicator 21 of the own vehicle It is determined whether the light is on or not (S404). When it is determined that the turn indicator 21 of the vehicle is not lit, the vehicle is straight ahead from the vehicle position in the first recording means 14, or the vehicle is straight ahead which is already recorded in the first recording means 14. A recorded image including position information corresponding to the traveling direction is searched (S405), and when it is determined that a vehicle surrounding image in the traveling direction corresponding to the straight traveling direction is recorded as a result of the search, the corresponding vehicle surrounding image is recorded. Is reproduced and displayed on the video reproduction display means 15 (S407),
If it is determined that the vehicle surroundings image in the traveling direction corresponding to the straight traveling direction is not recorded, the same operation as S403 is performed.

When it is determined in S404 that the turn indicator of the host vehicle is lit, the turn indicator 21 gives an instruction from the vehicle position where the video reproduction start switch 19 is turned on to the first recording means 14. The recorded image including the traveling direction information of the own vehicle when traveling in the direction is searched (S408), and the result of this search is determined (S409). When it is determined that the vehicle surrounding image in the corresponding traveling direction is recorded, the corresponding recorded image is reproduced and displayed on the image reproduction / display unit 15 (S410). If it is determined that there is not, S
The same operation as in 403 is performed.

Finally, it is judged whether or not the video reproduction stop switch 20 is turned on by the operator after the display operation of displaying the corresponding recorded video by the video reproduction display means 15 (S411), and the video reproduction is stopped. When it is determined that the switch 20 is turned on, the reproduction operation of the recorded image is stopped (S412). On the other hand, when it is determined that the video reproduction stop switch 20 is not turned on while the video image around the vehicle is continuously displayed, the reproduction display operation is continued, and the reproduction operation ends when the video data ends (S413). ).

As described above, the vehicle position information and the traveling direction information of the own vehicle when added to the surrounding image of the own vehicle at the time of passing through the intersection are added, and, for example, the daytime own vehicle image with good visibility of the vehicle is selected and recorded. If saved, when the vehicle approaches the same place, the recorded image corresponding to the vehicle position information at that time and the vehicle traveling direction instruction information can be reproduced and displayed, so that the same place is run at night when visibility is poor. Even in the case, you can check the image around the vehicle with good visibility, and you can get more information about the surrounding environment more accurately,
It is possible to further enhance the safety during traveling.

Next, FIG. 5 shows a block diagram of a safe driving support device according to a second embodiment of the present invention.

Referring to FIG. 5, the structure of the safe driving support device according to the second embodiment of the present invention is the same as that of the first embodiment of the present invention except the first recording means 13 and the photographing means. Own vehicle position information such as latitude and longitude information detected using the own vehicle position detection means 12 such as GPS and the surroundings image of the own vehicle captured by 11, and own vehicle traveling direction calculation means 1
3 has a second recording unit 514 capable of recording the traveling direction information of the own vehicle calculated using the history of the own vehicle position information described above, and further, the second recording unit 514. A recording video update switch 521 for generating an operation signal for instructing an operation of overwriting the recording data recorded in 514 on the first recording unit 13 is provided.

The operation of the safe driving support device configured as described above will be described with reference to FIG.

In FIG. 6, the operations from S600 to S610 are performed in S in FIG. 4 of the first embodiment.
Since the operation is similar to that from 400 to S410, its description is omitted.

In S607 or S610, at the same time when the reproduction and display operation of the corresponding recorded image recorded in the first recording means 14 is started, the image of the surroundings of the vehicle at that time is photographed by the photographing means 11, and this image is photographed. The recording operation in the second recording unit 514 is performed by associating the own vehicle surroundings image with the own vehicle position information detected by the own vehicle position detecting unit 12 at the time of capturing the image (S614). After that, at the same time when the image reproduction display of the recorded image recorded in the first recording means 14 is finished, the own vehicle traveling direction information obtained by the own vehicle traveling direction calculation means 13 is added to the photographed surrounding image of the own vehicle. Then, the data is recorded in the second recording means 514, and the recording operation to the second recording means is completed (S71).
1). After that, when the recorded video update switch 522 is turned on, the video recorded in the second recording means 514 is overwritten on the video data of the reproduced video in the first recording means 14 (S617). On the other hand, the recorded image update switch 522
If is not turned on, the video is not updated (S61).
8). That is, if the operator determines that the video does not need to be updated, the video overwrite switch 22 may not be turned on.

In the present embodiment, the recorded image recorded in the first recording means is an image photographed under a poor visibility condition, for example, an image in which sunlight is incident as a backlight and it is difficult to visually recognize the surrounding environment. In such a case, the recorded image can be overwritten according to the driver's preference, so that it is possible to provide a safe driving support device that further reduces the stress on the driver as compared with the first embodiment.

In the above description, the second recording means 5 is used.
The example in which the recording operation to the recording unit 14 is automatically started and the control is performed so as to confirm the update of the image after the end of the photographing has been described. For example, the recording operation to the second recording unit 514 is automatically performed. Alternatively, the recording operation may be controlled to be started at a time point desired by the operator, instead of starting the recording operation. In this case, it is possible to avoid unnecessary accumulation of data in the second recording unit 514, and it is possible to reduce the burden of the amount of data accumulated in the second recording unit 514.

Further, after the video recorded in the first recording means 14 and the video recorded in the second recording means 514 are stored for a certain period of time, the operator can compare the two videos and overwrite the data. You can control
There is an advantage that you can select a video that suits the taste of the driver.

Next, FIG. 7 shows a configuration diagram of a safe driving support device according to a third embodiment of the present invention.

Referring to FIG. 7, the structure of the safe driving support device according to the second embodiment of the present invention is the same as the structure of the first embodiment of the present invention.
It has a vehicle speed sensor 722 that outputs vehicle speed information of the host vehicle. The vehicle speed sensor 722 detects the number of rotations of the wheels of the own vehicle, converts the detected number of rotations into a DC voltage, and calculates the speed of the own vehicle from the DC voltage value.
However, the vehicle speed sensor according to the present embodiment is, for example, as shown in FIG.
As shown in, the vehicle speed is the time t after the predetermined time from the time t1.
It suffices to be able to determine at least whether the host vehicle is running or stopped, such as determining that the host vehicle is stopped while the value is 1'or less than the predetermined value V0 (V).

The operation of the safe driving support device configured as described above will be described with reference to FIGS. 9 and 10.

First, at the time of recording an image, the recording / storing start switch 17 is turned on when the vehicle approaches the intersection and the operator reaches a position where the operator wants to start recording / storing the image around the vehicle (t0). (S900). Then, from the recording / storing start switch 17, an operation signal for starting the video recording operation in the first recording means 14 is transmitted to the control means 16, and the control means 16 receives this operation signal and the inside of the control means 16 is received. Record the vehicle position information at that time in memory,
The video recording operation of the video image of the surroundings of the vehicle captured by the image capturing means 11 to the first recording means 14 is started (S9).
01). After the video recording operation is started, the control means 16 constantly reads the vehicle speed information from the vehicle speed sensor 722 (S902).

Next, the voltage value V indicating the vehicle speed information of the host vehicle
The time t1 when (V) becomes equal to or lower than the predetermined value V0 (V) is detected, and it is determined whether or not this voltage value V (V) is equal to or lower than V0 (V) until time t1 ′ after a predetermined time (S903).
Here, when it is determined that the voltage V indicating the vehicle speed information is V0 (V) or less from the time t1 to the time t1 ′, the voltage V indicating the vehicle speed information is a predetermined value after the time t1 and the time t1. The time t2 at which V0 (V) or more is given in association with the image at that time, and recorded in the first recording unit 14 (S904). On the other hand, in S904, from time t1 to time t1 ′, the voltage V indicating the vehicle speed information is V0.
If it is not determined to be (V) or less, the process proceeds to a determination operation (S905) as to whether or not the record storage switch 18 is turned on. In S905, when it is not determined that the record storage switch 18 is turned on, the process proceeds to S902, and when it is determined that the record storage switch 18 is turned on, the own vehicle position information (Φi, θi) at the point is calculated by the control means 16. The image is stored in the built-in memory, and the recording / storing operation of the surrounding image of the vehicle by the first recording unit 14 is finished (S906).

After that, the own vehicle traveling direction calculation means 13 calculates whether the own vehicle has gone straight, turned right, or left using the history of latitude and longitude information at the start and end of the recording of the above video recording operation. Yes (S907).

Finally, the recorded image of the surrounding area of the own vehicle is associated with the own vehicle advancing direction information obtained by the own vehicle advancing direction calculating means 13 and recorded and stored in the first recording means 14 (S908).

Next, the operation during reproduction will be described with reference to FIG.

In FIG. 10, S1000 to S100
6 and the operations from S1000 to S1009 are S400 to S40 in FIG. 4 of the first embodiment of the present invention.
6 and the operation from S400 to S409 is the same, and therefore the description thereof is omitted here.

When it is determined in S1006 or S1009 that the corresponding video exists in the first recording means 14, it is determined whether or not the time information t1 and t2 at the time of recording the video is added to the corresponding video. Done. (S1010) Here, if it is determined that the time information t1 and t2 at the time of recording the image is added to the corresponding recorded image, the vehicle speed sensor 522 determines the vehicle speed of the own vehicle at the time of reproducing the image as the next step. The voltage V that is detected and indicates the vehicle speed information is a predetermined value V for a predetermined time from t1 to t1 ′.
It is determined whether it is 0 (V) or less (S1011). At this time, when it is determined that the voltage V indicating the vehicle speed information is equal to or less than the predetermined value V0 (V) for the predetermined time from t1 to t1 ′, the corresponding recorded image is reproduced as it is (S1013), while the voltage V indicating the vehicle speed information is calculated. Is a predetermined value V for a predetermined time from t1 to t1 ′
When it is determined that it is not 0 (V) or less, the image between t1 and t2 added to the corresponding recorded image is fast-forwarded (S1012), and then the recorded image is continuously reproduced (S1013).

When it is determined in S1010 that the time information t1 and t2 at the time of recording the image is not added to the corresponding recorded image, the vehicle speed sensor 722 detects the vehicle speed at that time, and the vehicle speed information is detected. Indicating voltage V
It is determined whether (V) is equal to or less than a predetermined value V0 (V) for a predetermined time from t1 to t1 '(S1014). When it is determined that the voltage V (V) indicating the vehicle speed information at this time is equal to or less than the predetermined value V0 (V) for the predetermined time period from t1 to t1 ′, the recording video reproducing operation is stopped (S1015), and the vehicle speed pulse 7 continues.
The vehicle speed detection of the host vehicle is continued by 22 and the voltage V indicating the vehicle speed information of the host vehicle is a predetermined value V for a predetermined time from t1 to t1 '
When it is determined that the voltage becomes 0 (V) or higher, the recorded video is reproduced (S1016).

The operations from S1017 to S1018 and from S1017 to S1019, which is the end of reproduction, are the same as those described in the first embodiment from S411 to S41.
2 and S411 to S413 are the same as the description of the operation, so the description is omitted here.

As described above, at the time of recording, the vehicle speed of the vehicle is determined from the vehicle speed value of the host vehicle, and the above information is added to the video as time information after the start of recording and recorded. By determining the vehicle speed of the vehicle and temporarily stopping or fast-forwarding the playback video based on this determination result, even if the vehicle stops during video recording or playback, there is little deviation from the actual field of view of the traveling vehicle You can display the playback video corresponding to.

In the third embodiment described above,
It is also possible to have a switch for manually fast-forwarding or rewinding the reproduced image so that the above-mentioned image deviation during reproduction can be adjusted according to the driver's preference.

Furthermore, in the description of the first to third embodiments, the following applications are also possible.

First, in the description of the above embodiment, an example in which the recording / storing start switch 17 and the recording / storing stop switch 18 are independently configured, and the image reproduction start switch 19 and the image reproduction stop switch 20 are independently configured has been described. However, if the control means 16 can be controlled so as to be able to determine the distinction between the operation signal for starting and the operation signal for stopping, for example, the record saving start switch 17 and the record saving stop switch 18 are unified. Alternatively, the video reproduction start switch 19 and the video reproduction stop switch 20 may be one, and the number of switches is not limited.

Further, the own vehicle traveling direction calculating means 13 calculates the own vehicle traveling direction information of the recorded image from the own vehicle position information at the time of starting and stopping the recording. The angle sensor 101 or the like may be used. In this case, if the steering angle information such as how much the steering wheel of the vehicle is turned is used, the vehicle traveling direction of the recorded image can be calculated using this steering angle information and the own vehicle position information at the time of recording the image. You can

Further, by using the recording / storing start switch 17, the recording / storing stop switch 18, the video reproduction start switch 19 and the video reproduction stop switch 20, recording start / stop of the video is started.
Instead of executing the stop operation and the image reproduction start operation or the stop operation, the intersection information detecting means 101 may be used to execute each operation. The intersection information detecting means 101 is a means for detecting the presence of a traffic signal, a road sign, etc. by shooting an image of a traffic signal, a road sign, etc. at an intersection using a shooting device such as a camera, and performing image processing on the taken video. Is. That is, in the configuration of the safe driving support device according to the present embodiment, when the first recording unit 13 detects, for example, a traffic signal by the intersection information detecting unit 101 when approaching an intersection, the recording operation around the own vehicle is started, and a detectable time is detected. Continues the recording operation. The time when it cannot be detected is determined to be when the vehicle has passed through the intersection, and the video recording operation is stopped after a predetermined time from the above time. Further, the video reproduction display means 15 starts determining whether the reproduced video corresponding to the vehicle position information and the vehicle traveling direction display signal is stored in the recording means by detecting, for example, a traffic signal by the intersection information detection means 101. , If the file has been saved, playback of the recorded video starts. As described above, by using the means such as the intersection information detecting means 101 that can automatically instruct the execution of the recording / storing start, the recording / storing stop, the recording video reproduction start, and the recording video reproduction stop, the operator can Since there is no need to operate the safe driving support device and the troublesome operation is eliminated, it is possible to concentrate more on the driving work of the vehicle and further improve the safety during driving.

[0060]

As described above, according to the present invention, there is provided recording means for recording the vehicle position information at the start and end of the recording and the traveling direction of the own vehicle in the image around the intersection around the own vehicle. However, by providing a safe driving assistance device that can display appropriate road guidance with good visibility by playing back and displaying recorded images corresponding to vehicle position information and vehicle traveling direction when the vehicle travels at the same intersection after recording. You can do it.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a safe driving support device according to a first embodiment of the present invention.

FIG. 2 is a conceptual diagram for explaining own vehicle position information according to the embodiment of the present invention.

FIG. 3 is a flowchart for explaining the operation of the safe driving assistance device at the time of video recording in the first embodiment of the present invention.

FIG. 4 is a flowchart for explaining the operation of the safe driving assistance device during video reproduction according to the first embodiment of the present invention.

FIG. 5 is a configuration diagram of a safe driving assistance device according to a second embodiment of the present invention.

FIG. 6 is a flowchart for explaining the operation of the safe driving assistance device according to the second embodiment of the present invention.

FIG. 7 is a configuration diagram of a safe driving assistance device according to a third embodiment of the present invention.

FIG. 8 is an explanatory diagram relating to vehicle speed in the third embodiment of the present invention.

FIG. 9 is a flowchart for explaining the operation at the time of recording an image of the safe driving assistance device according to the third embodiment of the present invention.

FIG. 10 is a flow chart for explaining an operation at the time of video reproduction of the safe driving assistance device according to the third embodiment of the present invention.

FIG. 11 is a conceptual diagram for explaining a conventional safe driving support device.

[Explanation of symbols]

11 photographing means 12 own vehicle position detection means 13 own vehicle traveling direction calculation means 14 first recording means 15 image reproduction display means 16 control means 17 image recording / storing start switch (first operation signal transmitting means) 18 image recording / storing stop Switch (second operation signal generation means) 19 Recorded image reproduction start switch (third operation signal generation means) 20 Recorded image reproduction stop switch (fourth operation signal generation means) 21 Direction indicator 80 Vehicle 81 Camera (shooting) Means) 82 camera (imaging means) 83 camera (imaging means) 84 other vehicle, 101 traffic information detecting means 102 steering angle sensor 514 second recording means 522 recording image overwrite switch 722 vehicle speed sensor

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) B60R 21/00 626 B60R 21/00 626G H04N 7/18 H04N 7/18 J UF term (reference) 3D020 BA04 BB01 BC03 BE03 5C054 AA01 EA07 FC11 FE13 FE14 GB01 GB11 GB15 GD06 HA28 5H180 AA01 CC04 FF05 FF27 LL15

Claims (6)

[Claims] 1. A host vehicle position detecting means for detecting position information of the host vehicle, and an image capturing means for capturing an image around the host vehicle.
Own vehicle traveling direction calculating means for calculating traveling direction information of the own vehicle based on a history of the own vehicle position information detected by the own vehicle position detecting means, and an own vehicle when the surrounding image of the own vehicle is photographed by the photographing means. First recording means for recording the vehicle peripheral image, the own vehicle position information, and the own vehicle traveling direction information in association with each other, and image reproduction for reproducing and displaying the own vehicle peripheral image recorded in the first recording means. And a display means, wherein the video reproduction display means includes, from among the video images of the host vehicle recorded by the first recording means, a video image of the host vehicle corresponding to the position of the host vehicle during playback and the traveling direction of the host vehicle during playback. Safe driving support device that reproduces and displays. 2. The own vehicle position information and the own vehicle traveling direction information at the time of reproduction of the own vehicle surroundings image recorded in the first recording means and the own vehicle surroundings image photographed by the photographing means are recorded in association with each other. A second recording means for storing the vehicle surroundings image recorded in the second recording means corresponding to the vehicle position information and the vehicle traveling direction information recorded in the first recording means. The safe driving support apparatus according to claim 1, wherein the recording means of No. 1 can be overwritten. 3. A vehicle speed detecting means for detecting vehicle speed information according to the traveling speed of the host vehicle, wherein the first recording means or the second recording means captures an image of the surroundings of the own vehicle by the image capturing means. The host vehicle peripheral image, the host vehicle position information, the host vehicle traveling direction information, and the vehicle speed information at the time of recording are recorded in association with each other, and the reproduction means fast-forwards the host vehicle peripheral image in accordance with the vehicle speed information. The safe driving support device according to claim 1 or 2, wherein the image around the host vehicle is reproduced or temporarily stopped. 4. A steering angle detection means for detecting a steering angle of the own vehicle, wherein the own vehicle traveling direction calculation means is vehicle position information at the start of image recording and steering angle information detected by the steering angle detection means. The safe driving assistance device according to any one of claims 1 to 3, wherein the vehicle traveling direction information is calculated from the following. 5. An intersection information detecting means for detecting a specific object existing at an intersection, wherein when the intersection information detecting means detects a specific object existing at the intersection, the first recording means stores the information. When there is no image corresponding to the specific target existing at the intersection, the recording operation by the first recording unit is started, and after the recording operation by the first recording unit is started, the intersection target detection unit does not detect the image. The recording operation by the first recording unit is stopped when the state is continued for a predetermined time, and the image reproduction display is performed when an image corresponding to a specific object existing at the intersection exists in the first recording unit. In the intersection target detecting means after the image reproduction and display operation around the own vehicle by the means is started and after the image reproduction and display operation around the own vehicle by the image reproduction and display means is started. The safe driving assistance device according to any one of claims 1 to 4, wherein when the undetected state is continued for a predetermined time, the video playback operation of the video playback display means around the host vehicle is stopped. . 6. A first operation signal transmitting means for transmitting an operation signal for starting a recording operation by the first recording means to the first recording means, and a recording operation by the first recording means. A second operation signal transmitting means for transmitting an operation signal for stopping, and a third operation signal transmitting means for transmitting an operation signal for starting the image reproduction / display operation of the surroundings of the vehicle by the image reproduction / display means. 6. A fourth operation signal transmitting means for transmitting an operation signal for stopping the image reproducing operation of the surroundings of the vehicle by the image reproducing and displaying means, according to any one of claims 1 to 5. The described safe driving support device.