JPH08194430A - Automobile driving teaching apparatus - Google Patents

Abstract

PURPOSE: To provide an automobile driving teaching apparatus which can make a learner surely acquire driving technique to keep distances from other automobiles and heighten the consciousness of safe driving, regarding an automobile driving teaching apparatus to support learners to acquire how to keep the distance from other automobiles. CONSTITUTION: An automobile driving teaching apparatus is composed of a distance detecting means 1 to detect the distance between the presently driving automobile and an automobile running in the front, a photographing means 2 to photograph the image of the front side of the presently driving automobile, and a recording means 3 to record in parallel to the image taken by the photographing means 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle training device for assisting acquisition of an appropriate inter-vehicle distance.

[0002]

2. Description of the Related Art Generally, in driving a vehicle, it is important to maintain an inter-vehicle distance (hereinafter referred to as "safe inter-vehicle distance") that can avoid a collision in preparation for a sudden stop of a vehicle ahead.
In particular, on an expressway in which an automobile runs at high speed, there is a high risk that a serious accident may occur due to an insufficient inter-vehicle distance, and further observance of a safe inter-vehicle distance is desired.

For such safety reasons, in the road training at the driving school, the instructor gives the trainee appropriate attention to the appropriate safe inter-vehicle distance according to the vehicle speed, and instructs the trainee to keep the safe inter-vehicle distance. To be done.

[0004]

However, in such conventional road training, the inter-vehicle distance is determined based on the subjectivity of the instructor or the trainee, so that the sense of distance for determining the inter-vehicle distance must be accurately acquired. There was a problem that it was difficult.

In particular, it is difficult for the human sense of distance to accurately determine the safe inter-vehicle distance of about 100 m on a highway, and it is difficult to teach the safe inter-vehicle distance in high-speed training. SUMMARY OF THE INVENTION In order to solve such a problem, an object of the present invention is to provide a vehicle learning device that can raise awareness of safe driving while accurately supporting learning of driving technique for keeping a distance between vehicles. .

[0006]

FIG. 1 is a block diagram showing the principle of the invention described in claim 1. In FIG. The invention according to claim 1 is a distance detecting means 1 for detecting an inter-vehicle distance between the own vehicle and a preceding vehicle, an imaging means 2 for picking up an image in front of the own vehicle, and an inter-vehicle distance detected by the distance detecting means 1. It is characterized by comprising a recording means 3 for recording the distance and the image picked up by the image pickup means 2 in parallel.

FIG. 2 is a block diagram showing the principle of the invention described in claim 2. According to a second aspect of the invention, in the vehicle training apparatus according to the first aspect, the speed detection means 4 for detecting the vehicle speed of the own vehicle and the vehicle speed of the own vehicle detected by the speed detection means 4 are predetermined. A safe inter-vehicle distance calculating means 5 for calculating a safe inter-vehicle distance, and a recording means 3
Is characterized in that the safe inter-vehicle distance calculated by the safe inter-vehicle distance calculating means 5 is recorded in parallel with the inter-vehicle distance and the image.

FIG. 3 is a block diagram showing the principle of the invention described in claim 3. According to a third aspect of the present invention, in the vehicle training apparatus according to the first aspect, the speed detection means 4 for detecting the vehicle speed of the own vehicle and the vehicle speed of the own vehicle detected by the speed detection means 4 are predetermined. A safe inter-vehicle distance calculating means 5 for calculating a safe inter-vehicle distance, and an alarm means 6 for issuing an alarm when the inter-vehicle distance is shorter than the safe inter-vehicle distance calculated by the safe inter-vehicle distance calculating means 5. The recording means 3 is characterized in that the alarm generated by the alarm means 6 is recorded in parallel with the inter-vehicle distance and the image.

[0009]

In the vehicle learning apparatus according to the first aspect of the invention, the distance detecting means 1 detects the inter-vehicle distance between the own vehicle and the preceding vehicle. The recording unit 3 records the front image captured through the image capturing unit 2 in parallel with the inter-vehicle distance.

In this way, the running image and the inter-vehicle distance are recorded in association with each other on the time axis. Therefore, by reproducing the recorded contents, the driving situation is reproduced by the image and the running condition is maintained. Accurate inter-vehicle distance is displayed. In the vehicle learning apparatus according to the second aspect of the invention, the vehicle speed of the own vehicle is detected by the speed detecting means 4.

The safe inter-vehicle distance calculating means 5 calculates the safe inter-vehicle distance according to the vehicle speed thus detected. The safe inter-vehicle distance is a predetermined value that is an appropriate inter-vehicle distance in association with the vehicle speed of the host vehicle. The recording unit 3 records the safe inter-vehicle distance in parallel with the front image and the inter-vehicle distance.

In this way, since the image during driving and the safe inter-vehicle distance are recorded in association with each other on the time axis, the contents of these recordings are reproduced to reproduce the situation at the time of driving while traveling. It shows how much safe inter-vehicle distance was appropriate. In the vehicle learning apparatus according to the third aspect of the present invention, when the inter-vehicle distance detected by the distance detecting means 1 becomes shorter than the safe inter-vehicle distance calculated by the safe inter-vehicle distance calculating means 5, the alarm means 6 An alarm is issued.

The recording means 3 records this alarm in parallel with the front image and the inter-vehicle distance. In this way, since the image during driving and the alarm are recorded in association with each other on the time axis, by reproducing these recorded contents, while reproducing the situation at the time of driving, the safe inter-vehicle distance It is determined whether or not

[0014]

Embodiments of the present invention will now be described in detail with reference to the drawings.

FIG. 4 is a diagram showing a configuration of an embodiment corresponding to claims 1 to 3. In the figure, the output of the distance sensor 11 is connected to the display 12, the first input of the arithmetic processing unit 13 and the first input of the data storage unit 14. The output of the speed sensor 15 arranged in the transmission unit of the automobile is connected to the second input of the arithmetic processing unit 13 and the second input of the data storage unit 14, and the output of the image sensor 16 arranged in the front side of the automobile. Is the third of the data storage unit 14.
Connected to the input of.

The first output of the arithmetic processing unit 13 is connected to the alarm device 17 arranged in the driver's seat, and the second output of the arithmetic processing unit 13 is connected to the fourth input of the data storage unit 14. . The recording medium of the data storage unit 14 is attached to the data reproducing device 18. Regarding the correspondence between the present embodiment and the principle block diagrams shown in FIGS.
1 corresponds to the distance detecting means 1, the image sensor 16 corresponds to the imaging means 2, the speed sensor 15 corresponds to the speed detecting means 4, and the arithmetic processing unit 13 causes the safe inter-vehicle distance calculating means 5 and the alarm means 6. Correspond.

FIG. 5 is a flow chart showing the operation of the vehicle training apparatus of this embodiment. The operation of this embodiment will be described below with reference to these drawings. The image sensor 16 captures an image of the front of the automobile, and the captured image is the data storage unit 1.
4 is recorded (step S1). Also, the distance sensor 1
1 is a vehicle-to-vehicle distance L to the vehicle in front of the vehicle, which emits light, radio waves or ultrasonic waves toward the vehicle in front, and based on the time until these reflected waves return or the phase difference between the reflected waves.
To detect. The inter-vehicle distance L detected in this way is recorded in the data storage unit 14 (step S2) and displayed on the display 12 arranged in the driver's seat by a numerical value or a bar graph (step S3).

On the other hand, the speed sensor 15 measures the rotation speed of the tire of the automobile. The rotation speed thus measured is recorded in the data storage unit 14 as the vehicle speed Va (step S4). The arithmetic processing unit 13 uses the set values of the free running time Td and the deceleration acceleration a at the time of sudden braking to calculate the safe inter-vehicle distance D as follows: D = Va · Td + {Va ² − (Va + dL / dt) ² } / (2a ) ... (Equation 1) is calculated, and the value of the safe inter-vehicle distance D is recorded in the data storage unit 14 (step S5).

The safe inter-vehicle distance D calculated using the above formula is a value obtained by subtracting the braking distance of the preceding vehicle from the sum of the braking distance of the own vehicle and the free running distance. On the other hand, the arithmetic processing unit 13
Compares the inter-vehicle distance L and the safe inter-vehicle distance D (step S6). When the inter-vehicle distance L is shorter than the safe inter-vehicle distance D, an alarm sound is generated via the alarm device 17 (step S7). , This alarm sound is data storage unit 1
4 (step S8).

In the data storage unit 14, the data of the inter-vehicle distance L, the safe inter-vehicle distance D, and the vehicle speed Va thus obtained are subjected to a known superimposing process, so that
By superimposing these data on the image by the image sensor 16,
Video is recorded on a video tape or other recording medium. After the operation is completed, the recording medium is reproduced by using the data reproducing device 18 such as a VTR device, so that an image as shown in FIG. 6 is obtained.

Since the vehicle learning apparatus of this embodiment displays the distance L during traveling, it is possible to confirm the current inter-vehicle distance during learning. In addition, since the data of the inter-vehicle distance L is recorded together with the image during traveling in this way, the driver can reproduce the inter-vehicle distance by reproducing the recording medium thus recorded using an existing VTR device or the like. While reviewing the accurate value of the distance L, the sense of distance for determining the inter-vehicle distance can be accurately acquired.

Further, since the data of the safe inter-vehicle distance D according to the traveling situation is recorded together with the image during traveling, after the traveling, the driver reconfirms the distance from the preceding vehicle by the image, A proper value of the safe inter-vehicle distance D can be acquired. Further, when the inter-vehicle distance L is shorter than the safe inter-vehicle distance D, an alarm sound is generated, so that the driver can recognize that it is dangerous during training. In addition, the data storage unit 14
Since the warning sound is recorded together with the image while the vehicle is running, the driver can reconfirm that the inter-vehicle distance is short and that the vehicle is in a dangerous state, and at the same time enhance the safety consciousness regarding the compliance with the inter-vehicle distance.

In addition, at the time of a driver's license verification test, etc.
By not displaying the inter-vehicle distance or warning while driving,
It is possible to record the distance between vehicles without the driver being aware of it, and to accurately and objectively score the distance between vehicles. Further, since the instructor can objectively acquire the sense of the inter-vehicle distance, the instructor's teaching skills can be significantly improved.

In the above embodiment, the inter-vehicle distance L and other data are superposed on the image in front of the vehicle by superimposing processing, but the invention is not limited to this. Is recorded by using a video device, and the inter-vehicle distance L and other data are recorded on a recording medium such as a floppy disk or a hard disk, and these are reproduced in synchronization with each other, so that an image and data are simultaneously displayed. Is also good. Further, an image recording area and a data recording area may be separately provided and recorded on one recording medium, and the image and the data may be simultaneously displayed during reproduction.

Further, in the above-described embodiment, the safe inter-vehicle distance D is calculated by taking into account the braking distance of the preceding vehicle using the formula 1, but the present invention is not limited to this, and is based on the vehicle speed of the own vehicle. You can calculate the safe inter-vehicle distance by
If the vehicle speed is 100 km, set the safe inter-vehicle distance to 1
It is also possible to use a simple calculation formula such as 00 m. Further, in the above-described embodiment, the alarm sound is recorded when the inter-vehicle distance is equal to or less than the safe inter-vehicle distance, but the present invention is not limited to this, and it is sufficient to record a warning signal. The color may be changed and recorded, or a warning display or the like may be recorded.

[0026]

As described above, in the invention according to claim 1, the inter-vehicle distance is recorded together with the front image, so that the driver can review the accurate value of the inter-vehicle distance while traveling. , You can learn the sense of distance to judge the inter-vehicle distance accurately. In addition, since it is possible to record the inter-vehicle distance without fail during a driver's license verification test, the inter-vehicle distance can be objectively and accurately scored.

Further, since the instructor can objectively acquire the sense of the inter-vehicle distance, the instructor's teaching technique can be improved significantly. In the invention according to claim 2, since the safe inter-vehicle distance according to the vehicle speed is recorded together with the front image,
While the driver is reviewing the safe inter-vehicle distance while driving,
You can learn the proper value for the safe inter-vehicle distance.

According to the third aspect of the present invention, when the inter-vehicle distance is less than or equal to the safe inter-vehicle distance, an alarm is recorded together with the front image, so that the driver is in a dangerous state in which the inter-vehicle distance is short. While reconfirming this, it is possible to raise safety awareness regarding compliance with the inter-vehicle distance. By sounding such an alarm during driving, it is possible to reliably recognize a dangerous moment on the spot.

Further, in the case of a driver's license certification test or the like, this alarm is recorded without being sounded during driving, so that the alarm can be recorded without being noticed by the driver and the inter-vehicle distance can be surely scored. Can be done. As described above, in the on-the-road training to which the present invention is applied, the trainee can surely learn the driving technique that sufficiently raises the awareness of safe driving and keeps the inter-vehicle distance.

[Brief description of drawings]

FIG. 1 is a principle block diagram of the invention according to claim 1.

FIG. 2 is a principle block diagram of the invention described in claim 2.

FIG. 3 is a principle block diagram of the invention according to claim 3;

FIG. 4 is a diagram showing a configuration of an automobile training apparatus of an embodiment corresponding to claims 1 to 3.

FIG. 5 is a diagram showing an operation of the vehicle training apparatus of this embodiment.

FIG. 6 is a diagram showing an example of a reproduced image of the present embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 distance detection means 2 imaging means 3 recording means 4 speed detection means 5 safe inter-vehicle distance calculation means 6 alarm means 11 distance sensor 12 display device 13 arithmetic processing unit 14 data storage unit 15 speed sensor 16 image sensor 17 alarm device 18 data reproduction device

Claims (3)

[Claims] 1. A distance detecting means for detecting an inter-vehicle distance between a host vehicle and a preceding vehicle, an image capturing means for capturing an image in front of the host vehicle, an inter-vehicle distance detected by the distance detecting means, and the image capturing. A vehicle learning apparatus comprising: a recording unit configured to record an image picked up by the unit in parallel. 2. The vehicle learning apparatus according to claim 1, wherein a speed detection unit that detects a vehicle speed of the own vehicle, and a safe inter-vehicle distance that is predetermined according to the vehicle speed of the own vehicle detected by the speed detection unit. A safe inter-vehicle distance calculating means for calculating a distance, wherein the recording means records the safe inter-vehicle distance calculated by the safe inter-vehicle distance calculating means in parallel with the inter-vehicle distance and the image. A car learning device. 3. The vehicle learning apparatus according to claim 1, wherein a speed detection unit that detects a vehicle speed of the own vehicle, and a safety inter-vehicle distance that is predetermined according to the vehicle speed of the own vehicle detected by the speed detection unit. A safety inter-vehicle distance calculating means for calculating a distance, and a warning means for issuing an alarm when the inter-vehicle distance is short as compared with the safe inter-vehicle distance calculated by the safety inter-vehicle distance calculating means, The recording means records the alarm generated by the alarm means in parallel with the inter-vehicle distance and the image, and the vehicle learning device.