JPH09123876A - Recorder of behavior and driving action of passenger car - Google Patents

Abstract

PROBLEM TO BE SOLVED: To guarantee both privacy and a just accident record of a driver by leaving a long-term record while superscribing a short-term record of driving time information, and reading out an accident record only on the basis of a code number proper to a driver in a recorder and a private code number stored in an official agency. SOLUTION: Driving information in a recorder 2 which can endure a fire and acceleration of 80G is recorded on a short-term recroding part 301 over ten seconds or more, and it is superscribed in order, and is erased, and is recorded on a long term recording part. The short-term recording part 301 and its copying part 305 are incorporated into a code number system 401, and a proper code number 402 of a vehicle or a driver and a private code number 403 possessed only by an official agency are incorporated. At accident time of a vehicle or a driver 404, an official agency 406 of accident processing obtains a proper code number 402 from a managing-registering agency 405 of an owner or a driver, and only when it coincides with the private code number 403, the short-term recording part 301 and its copying record 305 are read out as driving information 407.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a passenger car navigation system and a driving operation recording apparatus.

[0002]

2. Description of the Related Art In a conventional passenger car, only some devices have a device for recording the engine speed, and there is no device for recording a driving operation or vehicle behavior in an emergency such as an accident. Also,
Conventional navigation systems for commercial passenger cars also do not have a system for recording and retaining the driver's movements of a vehicle driver.

Further, as a known example proposing such a system for recording the driving operation and vehicle behavior of a passenger car, there is an example introduced on pages 109 to 114 of Vol. In the publicly known literature, the records of driving behavior and vehicle behavior at the time of an accident are fair records for the driver of the vehicle or the individual owner of the vehicle, as well as for the public organization legally responsible for handling the accident. No proposal has been made for a system to do so.

[0004]

In the prior art as described above, in the event of a vehicle accident, it is necessary for the driver to know what operation the vehicle has performed and how the vehicle body behaves in the event of an accident. In addition to the testimony of the person, it was inferred from the damage to the vehicle and the other party in the accident, the scratch marks on the tires, and the damage and damage to the vehicle body. Therefore, if there are few or no witnesses to the accident, such as at night, if there are few traces of tires left in the rain or gravel roads, the parties to the accident will die or their memories will be remembered at the time of aftereffects or drunkenness during the accident. If any of the conditions, such as whether there is no certainty or not, overlaps, it becomes difficult to objectively verify the accident liability, which has been a problem in accident verification, trial, and insurance payment.

The object of the present invention is to record the driving behavior of the vehicle driver, the behavior of the vehicle, etc., to enable objective verification of the accident, and to ensure the privacy and fairness of the owner of the vehicle or the driver. It is to provide a system that guarantees accident records.

[0006]

Means for solving the above problems are as follows.

Driving information such as the driving operation of a running car and the posture and behavior of the vehicle body, external force, etc. are sequentially recorded for a certain period of time, and the driving operation ends or external force exceeding a preset limit or damage to the vehicle body occurs. The recording device is an in-vehicle recording device that sometimes ends the recording and retains the recording, and in the recording device, a first secret code unique to the vehicle or the driver and a non-public second device managed by a public organization. The above-mentioned operation code and the second operation can be started only by inputting both the first password and the second password. A driving information recording device for a passenger vehicle, which is capable of reading and erasing a record of vehicle behavior.

A means for setting the recording time of the driving information in the above-mentioned driving information recording device of a passenger car to be a constant time of 10 seconds or more.

Further, means for using a recording device of a specification which can withstand a fire of the vehicle and an impact of 80 G or more in the recording device of the driving information of the passenger car.

A navigation system for passenger cars,
An optical disc, a magnetic disc, a magnetic tape, a semiconductor memory, or a part of a magneto-optical disc on which navigation information is recorded, or a magnetic disc, a magnetic tape, a writable semiconductor memory, or an optical disc different from the recording medium on which the navigation information is recorded. On the magnetic disk, driving information while the passenger car is running, the posture and behavior of the vehicle body, and driving information such as external force are sequentially recorded for a certain period of time, and the driving operation ends or external force exceeding the preset limit or damage to the vehicle body occurs. Is a vehicle-mounted recording device that terminates the above-mentioned recording and retains the above-mentioned record when the first secret code unique to the vehicle or the driver and a non-disclosure secretary managed by a public institution are stored in the recording device. With the second personal identification code, recording can be started in the recording device only by inputting the first personal identification code. Testimony code and the second passenger car navigation system, characterized in that it is reading and erasing the recording of the behavior of the running operation and the vehicle only by the PIN code both inputs.

The following information is necessary for the information indicating the behavior of the passenger vehicle and the driving vehicle necessary for the means for achieving the above-mentioned object of the present invention. The behavior information of the passenger vehicle itself includes the state of the engine such as engine speed / water temperature / oil temperature, speed, the acceleration in the traveling direction and lateral direction felt by the vehicle body, and the vehicle position and direction if there is a navigation system. The driver's driving actions include the degree of turning of the steering wheel, the degree of depression of the brakes and the accelerator, the position of the shift lever, the operation of the horn, the turning of the direction indicator light and the side lights, and the headlights.
The operation of the wiper, shift position, whether or not the clutch is connected in the case of a manual transmission vehicle, whether the seat belt is worn, whether or not the door is completely closed, and depending on the vehicle type, safety such as ABS (anti-lock brake system) and airbag There is equipment operation. In order to obtain the above information, what is newly added to the current passenger car is an acceleration pickup that detects the shocking acceleration received by the vehicle body, and a sensor that detects the acceleration of the ordinary vehicle body and other equipment have already been added. Installed on some or all vehicles. Thus, the information necessary to achieve the object of the present invention can be easily obtained.

Even when a passenger car collides at a speed of 100 km / h and the vehicle body is crushed by 50 cm and stopped, the average acceleration is about 80 G. Current magnetic disk devices, semiconductor memories, and magnetic tape devices must withstand this gravity. Some of them can record even under this acceleration.
Even in the magneto-optical disk device, the medium itself can withstand the above acceleration if the optical head is prevented from colliding with the medium surface. Furthermore, by wrapping the recording device for driving operation of the present invention with a shock absorbing material, the recording device can be protected from a larger acceleration generated only at the moment of collision, and a further large shock can be endured.

When the vehicle is braked on a normal road surface at a speed of 100 km / h, the maximum stopping distance is about 100 m.
In that case, it takes about 7.2 seconds to stop. Therefore, suppose an accident occurs immediately before the vehicle is braked and the vehicle stops, and if the maximum stopping distance is doubled under adverse conditions such as rain or freezing, the accident will start from the braking effect. There will be up to about 10 seconds. Therefore, in order to record and prove the situation at the time of an accident, it is necessary to record the behavior and driving motion of all vehicles for at least 10 seconds immediately before the accident.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION First, an embodiment of the present invention will be described with reference to FIG. In the automobile vehicle 1, there is a recording device 2 of the driving operation of the passenger car of the present invention, and a turning angle from the steering wheel 3
From the engine 4, the engine state such as the number of revolutions, temperature, and hydraulic pressure, from the tire 5 the operating state of the brake and the number of revolutions, and from the acceleration sensor 6 and the collision sensor 7 in the vehicle, the acceleration and impact force applied to the vehicle body. On / off from the lighting / indicating lights such as the headlights 8, and the electronic control system 9 of the entire vehicle is equipped with the mileage, the amount of gasoline, the operation of the wiper, the opening / closing of the door, and the navigation system. For example, the position of the vehicle on the map is recorded in the driving operation recording device 2 of the present invention.

Next, the driving operation data of the passenger car recorded by the driving operation recording apparatus 2 of the present invention will be described with reference to FIG. The information collected and recorded by the driving operation recording apparatus 2 of the present invention is as follows.
Is the radiator temperature, hydraulic pressure, oil temperature, etc., and is the information 102 on the acceleration of the vehicle body during normal operation from the optical gyro etc. From the steering wheel, the cutting angle and, if possible, the angular velocity at which the steering wheel is turned on 103. Yes, from the speedometer and engine tachometer the vehicle speed and engine speed 104,
The accelerator opening 105 is from the accelerator drive unit, the brake pressure is information from the brake mechanism, and the tire lock status is information 106 if possible. From the headlight and indicator light control systems, those lights are turned on and off. The situation 107 is the shift position information 108 of the manual mission or the automatic transmission, the wiper operation situation 109, the information 110 of the door opening / closing (locking situation), and the shocking impact at the time of a collision due to an accident. It is the impact force 111 from the impact detectors arranged at a plurality of positions of the vehicle body for detecting the acceleration, and the position information 112 on the map of the vehicle when there is a navigation system. All of this information can be taken out as an electric signal in the current automobile vehicle technology, and is actually attached to various vehicles.

In order to record the driving motion immediately before an accident, which is the main object of the present invention, the recording device itself must endure the impact on the vehicle at the time of an accident and the high temperature at the time of a fire. FIG. 3 shows an example of the structure. The recording device 2 is made of a material 2 having good heat resistance and heat insulation, such as porous ceramics.
01, and is fixed to the vehicle body by an elastic body 202 such as a damping spring. If the signal line 203 and the power supply line 204 to the recording device 2 have an expandable structure so as not to be broken even when the recording device is largely displaced, data from the vehicle at the time of an accident can be transmitted for a while. The recording device 2 includes a magnetic disk device, a magnetic tape device, a magneto-optical disk device,
Non-volatile semiconductor memory is conceivable, but any device today can withstand 80G acceleration, which is considered to be the maximum average acceleration at the time of a vehicle accident described in the section of operation, when not operating, and under magnetic disk and semiconductor memory conditions But it is possible to continue recording. To further improve heat resistance, the recording device 2
The non-flammable liquid 205 having a boiling point lower than the heat resistant temperature of the recording device, such as water, is filled in the heat-resistant material portion outside of the, and when the temperature rises in a vehicle fire, the liquid 205 is boiled and the safety valve 206 The recording device may be protected from heat until the vehicle fire is extinguished by allowing the vaporized liquid 205 to escape. In addition, the magnetic disk device is also excellent in heat resistance.

In the present invention, all the driving operations are recorded as described above, but there is a risk that the capacity of the recording device will be exceeded in the operation for a long time, and such a large amount of information is meaningless to record. . Therefore, it is necessary to select only important records and keep them as long-term records. The processing at that time will be described with reference to FIG. The information on the vehicle state and the driving motion is recorded in the short-term recording unit 301 for all records for a predetermined time that is at least 10 seconds, which is the minimum recording time required to prove the history of the accident described in the section of action. It The record of the short-term recording unit 301 is sequentially overwritten and erased after a certain time, and of all the information recorded here,
Vehicle speed at regular time intervals, engine temperature and oil pressure, vehicle position and on / off time of headlights at any time, and time when abnormal driving operation such as sudden braking and sudden steering, which is very different from usual, Such information 302 is recorded in the long-term recording unit 303. The recording density of these recording devices does not have to be high, but rather, it is desirable that the recording density is such that only the medium can be taken out and the recording can be reproduced even if the mechanical portion of the recording device is damaged by an unexpected impact. Especially, the short-term recording units 301 and 305 in FIG.

The purpose of the present invention is to objectively prove the behavior of the vehicle at the time of an accident and the driving behavior of the driver, so that the records must be recorded and stored fairly. As described above, the recording apparatus of the present invention finishes recording at the end of driving and at the time of an accident. However, as shown in FIG. 4, when an instruction 304 to detect a shock more than a certain level or to save the record 301 is issued by the driver. All the short-term recording portions 301 are copied to another long-term recording portion 305. In order to prevent the driver or the like of the vehicle after the accident from altering or destroying the short-term recording unit 301 or the copying unit 305, the recording device itself is fixed at the time of manufacture of the vehicle and physically sealed by a public organization. desirable. Further, the recording unit 305 is not rewritten even if the vehicle is driven again, and the recording units 301 and 305 are sealed by software with a personal identification code system, and the reading and erasing of the recording unit 305 are basically performed by the vehicle. Only done by agreement between the owner or driver and their legal representatives and the public agency responsible for the vehicle accident.

In this personal identification code system, for example, as shown in FIG. 5, a personal identification system 401 is incorporated in the recording device 2 for driving operation according to the present invention, and a unique cipher code 402 unique to the vehicle or the driver for the personal identification system 401 and an accident. It is conceivable that the control device in the recording device 2 has the private secret code 403 for each vehicle, which is owned only by the public organization responsible for the processing.

In the embodiment of FIG. 5, in order to start writing in the recording device 2 at the start of driving, the driver side (vehicle The personal identification code 402 is input from the side 404 from the driver's own or a read-only semiconductor memory in the vehicle, and writing is not performed unless the personal identification code 402 in the personal identification system 401 is matched. A management organization 405 that manages / registers the vehicle or the driver, except that the unique password is owned only by the vehicle owner or the driver.
Stored only in. In order to protect the privacy of the vehicle owner and the driver, the vehicle owner or driver 40
No one other than the vehicle owner or driver can be notified without the consent of 4. However, this is not the case when it is based on a legal order. Further, if the unique secret code is unique to the driver, after a certain procedure, the secret code system 401 of the control device in the recording device 2
All you have to do is register it at.

Further, in the embodiment of FIG. 5, a short-term record 301 which remains as a record at the time of an accident and a copy record 305 of the short-term record.
To maintain the fairness of the two security codes 402 and 40
It cannot be read unless there is an input of 3. That is, in the event of an accident of the vehicle or the driver 404, the public agency 406 for handling the accident is notified from the management / registration agency 405 of the vehicle owner or the driver based on the consent or legal permission of the vehicle owner or the driver. The unique secret code 402 is obtained, and the secret secret code 403 and the individual secret code 402 are input to the secret code system 401 in the control device of the recording device 2, and the individual secret code 4 in the system is input.
02 and the secret code 403 only, the short-term recording unit 301 and its copy recording 305 can be read as the information 407 of the behavior of the vehicle at the time of the accident and the driving operation of the driver. The copy 305 of the short-term record can be deleted only by the same procedure. Therefore, a plurality of recording areas for the short-term recording copy 305 are required to cope with the accidents caused by the same vehicle that occur discontinuously.

Further, in order to enhance the security of the short record 301 and the copy 305, it is preferable to encrypt the record as shown in FIG. That is, as shown in FIG.
An encryption / decryption system 501 is prepared in 401, and an operation record is encrypted and recorded by one or both of the personal identification codes 402 or 403 at the time of recording, and conversely at the time of reading, it is recorded by one or both of the personal identification code 402 or 403. And 305 are flattened to obtain information 407 on the behavior of the vehicle at the time of the accident and the driving behavior of the driver. The most ideal case is that the code used for encryption is only the personal identification code 402 of the vehicle or the driver, and the secret identification code 403 is the secret identification code 403 that can encrypt the encrypted record. In this case, since the operation records 301 and 305 themselves are confidential, the recording medium can be replaced. Such an encryption / decryption system includes an encryption system such as a public key encryption system.

The present invention is also applicable to ships, trains, airplanes and the like.

[0024]

According to the present invention, in the event of a vehicle accident,
It enables a fair and objective proof of the behavior of the vehicle and the driving behavior of the vehicle driver in the event of an accident.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of an embodiment of a recording apparatus of the present invention in a passenger car vehicle.

FIG. 2 is an explanatory diagram of information recorded by a driving operation recording apparatus of the present invention.

FIG. 3 is an explanatory diagram of a shock resistant / heat resistant mechanism of the recording apparatus of the present invention.

FIG. 4 is an explanatory diagram of a recording operation at the time of a vehicle accident of the present invention.

FIG. 5 is an explanatory diagram of security of recording according to the present invention.

FIG. 6 is an explanatory diagram of security of a record by encrypting the record of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Vehicle, 2 ... Recording device, 3 ... Handle mechanism, 4 ... Engine part, 5 ... Tire, 6 ... Acceleration sensor, 7 ... Collision sensor, 8 ... Headlight, 9 ... Electronic control system.

Claims (4)

[Claims] 1. A driving information such as a driving operation of a running passenger car and a posture and behavior of a vehicle body is overwritten and recorded as a short-term record for a fixed time of 10 seconds or more. A part of the information is recorded as a long-term record, the recording is terminated after a certain period of time when external force or vehicle damage exceeding a preset limit is detected, and at least a copy of the above-mentioned short-term record is retained as an accident record. However, in the recording device, there is a first secret code unique to the owner or driver of the vehicle and a second secret secret code stored only in a public institution, and the first secret code is entered. Recording can be started in the recording device only by, and the accident record can be read and erased only by inputting the first secret code and the second secret secret code, The recording device withstands a fire of a vehicle and an acceleration of at least 80 G, and has a recording density that can be reproduced by another recording device even if the recording medium alone of the recording device is taken out. apparatus. 2. The recording device for driving information of a passenger vehicle according to claim 1, wherein the recording time of driving information is a fixed time of 10 seconds or more. 3. The driving information recording apparatus according to claim 1, which is resistant to a fire of a vehicle and an impact of at least 80 G or more. 4. A navigation system for passenger cars,
An optical disc, a magnetic disc, a magnetic tape, a semiconductor memory, or a part of a magneto-optical disc on which navigation information is recorded, or a magnetic disc, a magnetic tape, a writable semiconductor memory, or an optical disc different from the recording medium on which the navigation information is recorded. On the magnetic disk, driving information while the passenger car is running, the posture and behavior of the vehicle body, and driving information such as external force are sequentially recorded for a certain period of time, and the driving operation ends or external force exceeding the preset limit or damage to the vehicle body occurs. Is a vehicle-mounted recording device that terminates the above-mentioned recording and retains the above-mentioned record when the first secret code unique to the vehicle or the driver and a non-disclosure secretary managed by a public institution are stored in the recording device. With the second personal identification code, recording can be started in the recording device only by inputting the first personal identification code. Passenger car navigation system characterized in that it can only be read and erase the recorded behavior of the running operation and the vehicle by witness code and the second security code both inputs.