KR20080102258A - Recording device and recording method - Google Patents

Abstract

A recording device for collecting information enabling detailed accident examination. A recording section (11) such as FeRAM records, at predetermined recording intervals, vehicle information representing current conditions of a vehicle. An accident level determination section (12) determines, based on the magnitude of an impact detected by an impact detection section (20), whether an accident has occurred. When it is determined that an accident has occurred, a recording control section (13) causes the recording section(11) to record vehicle information at recording intervals (0.1 s, for example) less than those (1 s, for example) of before the accident. The accident can be examined in more detail by using vehicle information before and after the accident.

Description

Recording device and recording method {RECORDING DEVICE AND RECORDING METHOD}

The present invention relates to a recording apparatus and a recording method mounted on a vehicle, and more particularly, to a recording apparatus and a recording method for collecting data necessary for verifying a situation at the time of an accident.

As a device for recording information at the time of an accident, a flight recorder mounted on an aircraft is common, but recently, a recording device mounted on a vehicle (car, train, etc.) and collecting vehicle information for analyzing the cause of a traffic accident is known. Known.

For example, Patent Document 1 discloses a recording apparatus for recording a driver's driving operation, a vehicle's behavior, and the like, for example, for 10 seconds, and stopping recording when subjected to a predetermined shock or more.

In addition, Patent Document 2 discloses a recording apparatus for recording and storing images around and inside a vehicle before and after a collision occurs in a collision accident. Specifically, the recorded video is updated every 10 seconds to 60 seconds, and the recording operation and the update are stopped 2 to 30 seconds after the shock is detected.

In addition, Patent Document 3 discloses a technique of starting an engine of a vehicle and simultaneously starting recording in a nonvolatile memory and stopping recording when a certain shock or more is detected or after a predetermined time when the shock is detected or more. have. In this technique, the recording apparatus is configured to sequentially erase old video signals when the recording capacity is full, or to record images only for a desired period, and to sequentially erase after a desired period.

[Patent Document 1] Japanese Patent Application Laid-Open No. 9-123876

[Patent Document 2] Japanese Patent Application Laid-Open No. 2000-25659

[Patent Document 3] Japanese Unexamined Patent Publication No. 6-237463

However, in the recording apparatus such as Patent Document 1, since the recording is stopped when a certain shock or more is received, there is a problem that information after an accident cannot be obtained. For example, there is a case where a car collides with another car to change its course and develop into a serious accident. In this case, the detailed accident verification cannot be performed without the information immediately after the occurrence of the accident.

Moreover, although patent documents 2 and 3 record the image before and after an accident, and perform accident verification from the image, there existed a problem which cannot be interpreted correctly by the surrounding environment and the weather.

This invention is made | formed in view of such a point, and an object of this invention is to provide the recording apparatus which collects the information which can perform an accident verification in detail.

Another object of the present invention is to provide a recording method for collecting information capable of performing accident verification in detail.

In the present invention, in order to solve the above problem, in the recording apparatus mounted on a vehicle, as shown in Fig. 1, a recording unit 11 for recording vehicle information indicating the current state of the vehicle at predetermined recording intervals and an impact; The accident level determination unit 12 that determines whether or not the accident is in accordance with the magnitude of the impact on the vehicle detected by the detection unit 20 and the vehicle in the recording unit 11 at a recording interval shorter than before the accident if it is determined to be an accident. A recording apparatus 10 is provided, which has a recording control section 13 for recording information.

According to the above configuration, the recording unit 11 records vehicle information indicating the current state of the vehicle at predetermined recording intervals, and the accident level determining unit 12 measures the magnitude of the impact on the vehicle detected by the impact detecting unit 20. It determines whether it is an accident according to the above, and when it determines with an accident, the recording control part 13 records vehicle information in the recording part 11 with a shorter recording interval than before an accident.

In addition, in the recording apparatus mounted on the vehicle, it is determined whether or not the accident is in accordance with the recording unit for recording the vehicle information indicating the current state of the vehicle at a predetermined recording interval and the magnitude of the impact on the vehicle detected by the impact detection unit. There is provided a recording apparatus, comprising: an accident level determining unit configured to set the recording interval before the determination of an accident in accordance with the speed of the vehicle.

According to the above configuration, the recording unit records vehicle information indicating the current state of the vehicle at predetermined recording intervals, and the accident level determining unit determines whether or not the accident is in accordance with the magnitude of the impact on the vehicle detected by the impact detecting unit, The recording control section sets the recording interval before it is determined that the accident is in accordance with the speed of the vehicle.

Further, vehicle information indicating the current state of the vehicle is recorded in the recording unit at predetermined recording intervals, and it is determined whether or not the accident is in accordance with the magnitude of the impact on the vehicle detected by the impact detection unit. A recording method is provided, wherein the vehicle information is recorded in the recording section at the recording interval shorter than before.

According to the above method, vehicle information indicating the current state of the vehicle is recorded in the recording unit at predetermined recording intervals, and it is determined whether or not the accident is in accordance with the magnitude of the impact on the vehicle detected by the impact detection unit, and determined as an accident. In this case, vehicle information is recorded in the recording section at a shorter recording interval than before the accident.

[Effects of the Invention]

Since the present invention records vehicle information indicating the current state of the vehicle before and after the occurrence of the accident, it is possible to verify in detail how the accident occurred from various situations. In addition, since the recording interval after the occurrence of the accident is shorter than the recording interval before the occurrence of the accident, more information immediately after the occurrence of the accident, which is important for verifying the behavior of the vehicle after the impact, can be recorded in a recording capacity of a limited capacity.

In addition, by setting the recording interval before it is determined to be an accident according to the speed of the vehicle, when the speed is slow, the recording interval becomes a long recording interval. Therefore, an accident that is important for verifying the behavior of the vehicle after being impacted by a recording unit of limited capacity More information immediately after occurrence can be recorded. In addition, since unnecessary writing can be omitted, the life of the recording unit can be extended.

These and other objects, features and advantages of the present invention will become apparent from the following description taken in conjunction with the accompanying drawings which illustrate preferred embodiments as examples of the invention.

1 is a schematic configuration diagram of a recording apparatus mounted on a vehicle.

2 is a schematic diagram of a vehicle equipped with a drive recorder.

3 is a configuration diagram of an example of a drive recorder.

4 is a flowchart showing the operation of the drive recorder of the first embodiment.

5 is a flowchart showing the operation of the drive recorder of the second embodiment.

Fig. 6 is a diagram showing a speed and a distance that progresses at a time.

7 is a flowchart showing the operation of the drive recorder of the third embodiment.

FIG. 8 is a diagram showing a speed and a distance running at a time.

9 is a flowchart showing the operation of the drive recorder of the fourth embodiment.

10 is a diagram showing a part of vehicle information recorded in FeRAM.

EMBODIMENT OF THE INVENTION Hereinafter, embodiment of this invention is described in detail with reference to drawings.

1 is a schematic configuration diagram of a recording apparatus mounted on a vehicle.

The recording apparatus 10 is mounted on a vehicle body such as an automobile, and has a recording unit 11, an accident level determination unit 12, and a recording control unit 13.

The recording unit 11 is, for example, a ferroelectric random access memory (FeRAM), and records vehicle information indicating the current state of the vehicle at a predetermined recording interval (for example, every second).

The vehicle information may include, for example, radiator temperature, engine condition, acceleration, magnitude of impact, opening and closing of the door, turning on / off of the wiper, shift position, front lighting, turning on / off of the direction indicator light, brake pressure, presence / absence of the brake lock, The presence or absence of slip, the access opening degree, the speed, the engine speed, the steering wheel limit angle, the position information, and the like.

The accident level determination unit 12 determines whether or not the accident is in accordance with the magnitude of the impact on the vehicle detected by the impact detection unit 20 mounted on the vehicle body.

The recording control unit 13 controls the recording of the vehicle information in the recording unit 11. When it is determined that an accident has occurred in the accident level determining unit 12, the vehicle information is recorded in the recording unit 11 at a recording interval shorter than before the accident. For example, when the recording interval before the accident is 1 second, the recording interval after the accident is, for example, 0.1 second. In addition, overwriting of vehicle information within a predetermined time period before the occurrence of an accident is prohibited. If no accident is determined, vehicle information is recorded at the same recording interval as before the impact detection, and when the recording capacity is full, new vehicle information is recorded by sequentially overwriting the oldest vehicle information.

The operation of the recording apparatus 10 will be described below.

The recording unit 11 records the vehicle information every second, for example, immediately after registering a new vehicle of the vehicle under the control of the recording control unit 13. When the recording capacity is full, new vehicle information is recorded by sequentially overwriting the oldest vehicle information. In the shock detection unit 20, when an impact on the vehicle is detected, the accident level determination unit 12 of the recording apparatus 10 determines whether an accident has occurred from the magnitude of the impact. Here, when it is not determined that an accident, the recording control unit 13 causes the recording unit 11 to record the vehicle information at the same recording interval (1 second) as before the impact detection. When the remaining recording capacity of the recording unit 11 is lost, new vehicle information is recorded by sequentially overwriting the oldest vehicle information.

On the other hand, when the accident level determination unit 12 determines that an accident has occurred, the recording control unit 13 makes the recording interval of the recording unit 11 shorter than before the accident, for example, 0.1 seconds. At the same time, overwriting of vehicle information within a certain time before the accident is prohibited, so that the information immediately before the accident remains.

According to such a recording apparatus 10, since vehicle information indicating the current state of the vehicle before and after the occurrence of the accident is recorded, it is possible to verify in detail how the accident occurred from various situations. In addition, since the recording interval after an accident is made shorter than the recording interval before an accident, more information immediately after an accident, which is important for verifying the behavior of the vehicle after an impact, can be recorded in the recording unit 11 of limited capacity. have.

In the above description, the recording control unit 13 has described the case where the recording interval after the occurrence of an accident is shorter than before the occurrence of an accident, but the recording interval before the occurrence of an accident is set in accordance with the speed of the vehicle, and the long recording interval when the speed is slow. In this case, more information may be recorded in the recording unit 11 of limited capacity immediately after the occurrence of the accident, which is important for verifying the behavior of the vehicle after the impact. In addition, since unnecessary recording can be omitted, the life of the recording unit can be extended. Details will be described later.

The details of the recording apparatus will be described below.

In the following description, a case where a recording apparatus (hereinafter referred to as a drive recorder) is mounted in an automobile will be described.

First, the drive recorder of the first embodiment will be described.

2 is a schematic diagram of a vehicle equipped with a drive recorder.

The drive recorder 100 is installed in the vehicle body 200 of the vehicle. Moreover, the impact sensor 110 for detecting an impact is arrange | positioned in the some location of the vehicle body 200. As shown in FIG.

3 is a configuration diagram of an example of a drive recorder.

The drive recorder 100 has a central processing unit (CPU) 101, a FeRAM 102, a read only memory (ROM) 103, an I / F (interface) 104, which are connected via a bus 105. Interconnected.

The CPU 101 controls each part of the drive recorder 100 in accordance with a program stored in the ROM 103.

The FeRAM 102 records various vehicle information under the control of the CPU 101.

The ROM 103 records a program or the like executed by the CPU 101.

The I / F 104 includes shock sensors 110-1, 110-2,..., 110-n that detect shocks, an electronic control unit 111 that controls various parts of a vehicle, and position information (such as position or direction of travel). The device is installed outside the drive recorder 100 such as a GPS (Global Positioning System) 112 for acquiring the data, and the on-vehicle bus 113 is connected.

Hereinafter, the operation of the drive recorder 100 as shown in FIG. 3 will be described.

4 is a flowchart showing the operation of the drive recorder of the first embodiment.

In the drive recorder 100, the CPU 101 starts recording the vehicle information into the FeRAM 102 immediately after registering the new car of the vehicle (step S1). The vehicle information is recorded in the FeRAM 102 through the I / F 104 from the impact sensors 110-1 to 110-n, the electronic control unit 111, and the GPS device 112 connected to the onboard bus 113. . Vehicle information includes radiator temperature, engine state (hydraulic, engine on / off), acceleration, presence or absence of shock, location of impact, magnitude of impact, opening and closing of door, on / off of wiper, shift position, front light, On / off of the direction indicator, direction of the direction indicator, brake pressure, brake lock presence, slip presence, access opening degree, speed, engine speed, steering wheel limit angle, position information, and the like. Although image data may be obtained by installing a CCD (Charge Coupled Device) camera or the like in the vehicle, it is preferable that the data size is small. Such vehicle information is recorded in the FeRAM 102 every second under the control of the CPU 101, regardless of driving or stopping of the vehicle.

After the start of recording the vehicle information, the process of step S1 is repeated until an impact is detected by the impact sensors 110-1 to 110-n (step S2). When an impact is detected by the impact sensors 110-1 to 110-n, the CPU 101 determines whether the impact is an accident level from the magnitude of the impact (step S3). If it is not at the accident level, the process from step S1 is repeated without determining that the shock is an accident. If the detected shock is at the accident level, the CPU 101 determines that an accident has occurred and protects the information immediately before the accident by prohibiting overwriting of the record for 10 minutes before the accident is detected (step S4). Further, the recording interval of the vehicle information into the FeRAM 102 is changed from 1 second to 0.1 seconds (step S5). Accordingly, after the accident, the vehicle information is recorded in the FeRAM 102 every 0.1 seconds. The information after the accident is also recorded in the overwriteable area 10 minutes before the accident, and the process of step S5 is repeated until the FeRAM 102 is full (step S6). When the FeRAM 102 is full, the CPU 101 ends recording and outputs data (step S7).

In addition, after the writing is completed, the FeRAM 102 may be prohibited from writing in order to prevent illegal writing. The information may be displayed on a display that shows, for example, the engine state of the vehicle. In addition, even if the power supply from the battery to the drive recorder 100 is stopped, the recording data of the FeRAM 102 is retained.

By using the vehicle information recorded as described above, the accident verification can be performed from the vehicle information before and after the occurrence of the accident, and it can be analyzed in detail whether it is an artificial accident or an accident caused by mechanical trouble. In addition, it is possible to verify in detail how the accident came from various situations without analyzing the accident only by the image information.

In addition, since the recording interval after the accident occurred was 0.1 seconds shorter than the recording interval (1 second) before the accident, the information immediately after the accident, which is important for verifying the behavior of the vehicle after the impact, is limited to the FeRAM 102 having a limited capacity. Can be recorded a lot. In addition, even when an accident occurs at the time of stopping, the recorded vehicle information at the time of the accident can be used for insurance negotiation or the like.

In addition, since the FeRAM 102 is used for the recording memory, since it can cope with the recording of the instant of 0.1 second and has the rewrite resistance of 10 ^{12 to 14} , the recording over a long period of about 10 years It is possible to continue rewriting and recording. In addition, since it is stronger against impact and smaller in volume than when using a HDD (Hard Disk Drive), it is easy to protect the memory itself from shock and heat.

Next, the drive recorder of the second embodiment will be described.

The drive recorder of the second embodiment sets the recording interval after the accident by the speed of the vehicle. In addition, the structure of a specific drive recorder is the same as that shown in FIG. Hereinafter, the operation of the drive recorder of the second embodiment will be described with reference to FIG. 3.

5 is a flowchart showing the operation of the drive recorder of the second embodiment. Steps S10 to S13 are the same as the processes of steps S1 to S4 of the drive recorder of the first embodiment shown in FIG. In the drive recorder of the second embodiment, in step S14, similarly to the drive recorder of the first embodiment, the recording interval of the vehicle information is set to be shorter than before the accident, but shock detection is not made every 0.1 seconds uniformly. Set according to the speed of the hour. The faster the speed, the shorter the recording interval. The slower the speed, the longer the recording interval. This is because beneficial information cannot be obtained even if the recording interval is shortened at a low speed. Specifically, the CPU 101 sets a recording interval so as to record the vehicle information every time the vehicle advances 2 m to 3 m, for example, based on the speed information of the vehicle from the electronic control unit 111.

Fig. 6 is a diagram showing a speed and a distance that progresses at a time.

As a result of the examination using these drawings, when the vehicle information is to be recorded every time a 2 m to 3 m vehicle proceeds, 0.3 to 0.5 seconds per hour under 20 km, 20 km or more per hour, and 0.15 seconds under 50 km per hour It is understood that it is good to set it to 0.06 second-0.14 second at -0.29 second, 50 km or more per hour, less than 100 km per hour, and 0.1 second or less at 100 km per hour or more.

In this manner, the vehicle information after the accident is recorded in the FeRAM 102 at the set recording interval. Incidentally, the following steps S15 and S16 are the same as those of the drive recorder of the first embodiment.

According to such a drive recorder of the second embodiment, in addition to the same effects as those of the drive recorder of the first embodiment, the effect of recording accurate behavior immediately after an accident occurs every time a 2 m to 3 m vehicle proceeds is obtained. Can be. In the case of a low speed, since it can be made into a long recording interval and unnecessary writing can be skipped, the lifetime of the FeRAM 102 can be extended.

Next, the drive recorder of the third embodiment will be described.

The drive recorder of the third embodiment sets not only the recording interval after the accident but also the recording interval before the accident by the speed of the vehicle. In addition, the structure of a specific drive recorder is the same as that shown in FIG. 3, the operation of the drive recorder of the third embodiment will be described.

7 is a flowchart showing the operation of the drive recorder of the third embodiment. In the drive recorder 100, the CPU 101 starts recording of the vehicle information into the FeRAM 102 immediately after registering the new car of the vehicle (step S20). When recording starts, the CPU 101 changes the recording interval in accordance with the speed of the vehicle (step S21). The faster the speed, the shorter the recording interval. The slower the speed, the longer the recording interval. This is because beneficial information cannot be obtained even if the recording interval is shortened at a low speed. Specifically, the CPU 101 sets a recording interval so as to record the vehicle information every time the vehicle advances from 3 m to 5 m, for example, based on the speed information of the vehicle from the electronic control unit 111.

FIG. 8 is a diagram showing a speed and a distance running at a time.

As a result of examination using these drawings, when the vehicle information is to be recorded every time a 3 m to 5 m vehicle proceeds, the recording interval is 1 second or less at 10 km or less, 0.8 seconds or less at 20 km or less, and 40 hours per hour. In km or less, it turned out that it is 0.6 second or less, 0.4 km or less at 50 km / h, 0.25 second or less at 90 km / h, and 0.1 second or more at 90 km / h or less. In addition, at the time of stopping, it is set as 30 second.

The following processes of steps S22 to S27 are the same as the processes of steps S11 to S16 of the drive recorder of the second embodiment shown in FIG. 5.

As described above, according to the drive recorder of the third embodiment, in addition to the same effects as the drive recorders of the first and second embodiments, in the case of a low speed before an accident, a long recording interval can be achieved, and the FeRAM 102 having a limited capacity can be obtained. ), It is possible to obtain the effect that more information can be recorded immediately after an accident, which is important for verifying the behavior of the vehicle after being shocked. In addition, since unnecessary writing can be omitted, the life of the FeRAM 102 can be extended.

In the drive recorder of the third embodiment described above, the case where the recording interval after the accident is set in accordance with the speed has been described. However, similarly to the drive recorder of the first embodiment, the recording interval after the accident is fixed to, for example, 0.1 second. You can also let them.

Next, the drive recorder of the fourth embodiment will be described.

Here, the processing in the case where the shock is further impacted after the accident will be described. In addition, the structure of a specific drive recorder is the same as that shown in FIG. 3, the operation of the drive recorder of the fourth embodiment will be described.

9 is a flowchart showing the operation of the drive recorder of the fourth embodiment. The processing of steps S30 to S34 is the same as the processing of steps S1 to S5 of the drive recorder of the first embodiment shown in FIG. 4. In the drive recorder of the fourth embodiment, when the impact is again impacted after the occurrence of the accident (step S35), the impacted location is recorded in the FeRAM 102 (step S36). If the shock is not impacted again, the same processing as that of the drive recorder of the first embodiment is performed.

It demonstrates concretely below.

10 is a diagram showing a part of vehicle information recorded in FeRAM.

As shown in the figure, the position (shock point) of the shock sensors 110-1 to 110-n, which detected the speed, the presence or absence of a shock, the presence or absence of an impact on the vehicle body, and the impact sequentially from the write address "1", is determined by FeRAM ( 102). It is assumed that an impact occurs at a certain point in time, and the vehicle information at that time is recorded at, for example, the write address " 10 " When it is determined that the impact is the accident level in the process of step S32, the vehicle information at the recording addresses " 1 " Then, the vehicle information is recorded in the FeRAM 102 at the recording interval changed in the process of step S34. Here, in the case where a shock is detected again, regardless of the magnitude of the impact, the recording interval is not changed, and the overwrite prohibition area is not changed, and the location subjected to the impact by the process of step S36 is, for example, the recording address. Record as "20" and "31".

When the accident verification is performed using the vehicle data as shown in FIG. 10, the following is found.

Accident verification example: This accident was first contacted from the rear of the car, and slipping occurred due to it, jumped out of the traveling lane, and contacted the vehicle from the front. Moreover, it rotated after that and stopped by receiving an impact from the left side.

As described above, according to the drive recorder of the fourth embodiment, in addition to the same effect as the drive recorder of the first embodiment, even in the case where a plurality of shocks are received, the effect of the accident situation can be verified in detail. .

In the drive recorder of the fourth embodiment, the recording interval before the accident and the recording interval after the accident shorter than that are made constant (1 second and 0.1 second), respectively, but the same as the drive recorder of the second or third embodiment. For example, the recording interval may be set according to the speed of the vehicle before or after the accident.

As mentioned above, although the drive recorder of four embodiment was demonstrated using drawing, it is not limited to this. For example, a radio clock may be provided in an automobile to record the time of the radio clock as vehicle information. By referring to this time and the positional information of the GPS device 112, it can be used for event analysis such as hit and run. That is, in the case of hitting a car (actually hitting a car or a person), a shock is detected by the shock sensors 110-1 to 110-n, and the CPU 101 determines that it is an accident level. Since the FeRAM 102 stores time and position information, it is possible to specify when and where an event occurs. At this time, when the recording is completed after the impact of the accident level, it is desirable to prohibit the writing of the FeRAM 102 and to prevent fraud.

Further, a sensor for detecting the weight of a person may be provided in the seat of the vehicle, and the information may be recorded as vehicle information. Accordingly, it is possible to verify whether or not a person has been released out of the vehicle at some point after the accident.

In addition, in the above, when it judged that it was an accident level, overwriting of data in the predetermined period (for example, 10 minutes) before an accident is prohibited, but the vehicle recorded between the fixed distance (for example, 200 m or more) which the car advanced before an accident. The information may be overwritten. This is suitable for the drive recorder of the third embodiment in which the recording interval before an accident is set by speed.

In addition, although the case where FeRAM was used was demonstrated above, you may use other nonvolatile memory, such as a fresh memory. However, as described in this embodiment, it is preferable to use FeRAM from the large number of writes while realizing a short write interval such as one second. Alternatively, when non-volatile memory is not used, data is acquired by using a DRAM or the like (for example, 1 M information is acquired and data is transferred to the HDD when the 1 M information is full), and after a certain time. It may be recorded on the HDD.

If an accident level occurs once and a situation that cannot be recorded in the FRAM has already occurred, the indicator of memory replacement may be provided on the meter section of the driver's seat.

In addition, although the case where the recording apparatus of this embodiment was applied to an automobile was demonstrated, it is applicable also to a train, a ship, or an aircraft.

The above merely illustrates the principles of the present invention. Also, many modifications and variations are possible to those skilled in the art, and the present invention is not limited to the exact construction and application examples shown and described above, and all corresponding modifications and equivalents are to the appended claims and their equivalents. By the scope of the present invention.

<Explanation of symbols for the main parts of the drawings>

10: recording device 11: recording unit

12: Accident Level Determination Unit 13: Record Control Unit

20: shock detection unit

Claims (20)

In a recording apparatus mounted on a vehicle, A recording unit for recording vehicle information indicating a current state of the vehicle at predetermined recording intervals; An accident level determination unit that determines whether or not an accident is in accordance with the magnitude of the impact on the vehicle detected by the impact detection unit; If it is determined that an accident, the recording control unit for recording the vehicle information in the recording unit at the recording interval shorter than before the accident Recording apparatus comprising a. 2. The recording control apparatus according to claim 1, wherein the recording control unit writes to the recording unit at the same recording interval as before the detection of the impact, when it is not determined that an accident is detected at the time of detection of the impact. And overwriting the vehicle information sequentially to record the new vehicle information. The recording apparatus according to claim 1, wherein, when it is determined that an accident is detected at the time of detecting an impact, the recording control unit overwrites the vehicle information within a predetermined time before the accident. The recording apparatus according to claim 1, wherein the recording control section sets the recording interval before the accident to 1 second and the recording interval after the accident to 0.1 second. The recording apparatus according to claim 1, wherein the recording control section sets the recording interval after the accident in accordance with the speed of the vehicle at the time of detecting the impact when it is determined that the accident is detected at the time of detecting the impact. 6. The recording apparatus according to claim 5, wherein the recording controller sets the recording interval so that the vehicle information is recorded every time the vehicle advances 2 m to 3 m based on the speed. The recording apparatus according to claim 1, wherein the recording control section sets the recording interval before it is determined that the accident is in accordance with the speed of the vehicle. 8. The recording apparatus according to claim 7, wherein the recording controller sets the recording interval so that the vehicle information is recorded every time the vehicle advances from 3 m to 5 m based on the speed. The recording unit according to claim 1, wherein, when it is determined that an accident is detected at the time of impact detection, the shock is detected again, the recording control unit records the impacted location as the vehicle information in the recording unit without changing the recording interval. And a recording device. The recording apparatus according to claim 1, wherein the recording unit is FeRAM. The recording apparatus according to claim 1, wherein the recording control unit records the current time detected by the radio time clock in the recording unit at the recording intervals. The recording apparatus according to claim 1, wherein the recording control unit records the weight information detected by the detection unit provided in the seat of the vehicle at the recording interval at the recording interval. The recording apparatus according to claim 1, wherein the recording control section makes the recording section prohibit recording when the recording of the vehicle information after the accident ends after it is determined that the accident has occurred. In a recording apparatus mounted on a vehicle, A recording unit for recording vehicle information indicating a current state of the vehicle at predetermined recording intervals; An accident level determination unit that determines whether or not an accident is in accordance with the magnitude of the impact on the vehicle detected by the impact detection unit; A recording control section for setting the recording interval before it is determined that the accident is in accordance with the speed of the vehicle Recording apparatus comprising a. Recording vehicle information indicating the current state of the vehicle at a predetermined recording interval in the recording section; It is determined whether or not an accident according to the magnitude of the impact on the vehicle detected by the impact detection unit, And when it is determined that an accident is recorded, the vehicle information is recorded in the recording unit at a shorter recording interval than before the accident. The recording method according to claim 15, wherein when it is determined that an accident is detected at the time of detecting an impact, the recording interval after the accident is set according to the speed of the vehicle at the time of detecting the impact. 17. The recording method according to claim 16, wherein the recording interval is set to record the vehicle information every time the vehicle proceeds from 2 m to 3 m based on the speed. The recording method according to claim 15, wherein the recording interval before it is determined to be an accident is set according to the speed of the vehicle. 19. The recording method according to claim 18, wherein the recording interval is set to record the vehicle information every time the vehicle advances from 3 m to 5 m based on the speed. The method according to claim 15, wherein when the impact is detected again after it is determined to be an accident at the time of detecting the impact, the impacted portion is recorded as the vehicle information in the recording unit without changing the recording interval. Recording method.

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