JP2525077Y2 - Data collection device in the vehicle - Google Patents

Abstract

It is proposed to complement a device for data acquisition in a vehicle by means for manually inputting information which characterises an accident or an accident-like situation. In particular, there is provision for the storage of this information to be triggered by actuating the key (2) of the hazard warning signal generator (1) of the respective motor vehicle. For this purpose, the signalling lines of the flasher lights (8, 9, 10, 11) of the right-hand and left-hand vehicle side are logically connected via an AND element (21) and the output level of a retriggerable, monostable multivibrator (22) connected downstream is continuously interrogated by a microcomputer over a specific hunting time. If the level is maintained, the microprocessor (19) controls the permanent storage of identification data in the data memory (24) of the relevant data acquisition system. <IMAGE>

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data collection device in a vehicle. In this case, a microcomputer, a data storage device in which data is continuously written under the control of a clock pulse, and means for manually inputting information indicating an accident or a state close to the accident are provided.

[0002]

2. Description of the Related Art In data detection in a motor vehicle, recording of data that depends on driving conditions such as a driving distance, a speed at which the vehicle travels, an engine speed, and a fuel consumption is taken into consideration in consideration of a determination of a transportation capacity. But also the detection of hazardous and safety-related data concerning the driving operating conditions, as well as the recording of data concerning, for example, tire pressure, brake lining strength or shaft load. In addition, the requirement to be able to check the compliance with the working time guidelines, the so-called social rules, requires the detection of working time data, i.e. the detection of driving time, waiting time and rest time. In addition, data detection should allow identification and evaluation of accidents and near-accident conditions. That is, significantly higher speed and / or distance or acceleration values should be recorded with higher resolution than the recording timing control for determining transportation capacity and traffic rules and working hour rules. .

Therefore, apart from devices which are usually designed exclusively as accident recording devices or accident storage devices, the data memory of the data detection device is, for example, the data memory of a conventional driving recording device if it has a data memory. In a device provided for outputting printed matter and using a data card relating to travel, a memory area in which distance values and / or time values with higher resolution are written and subsequently erased again is provided. Is provided. For this purpose, the remaining remaining route, or possibly the last time region with a certain elapsed time, is detected.

Accident data are detected, for example, by means of an acceleration sensor and are stored for a very short time on the basis of time, so that additional information on, for example, the operation of the brakes, the operation of the blinkers and the lighting system is detected as an aid to the analysis. The special accident recording device records accident data when the vehicle is actually accelerated. In this case, this acceleration is something other than acceleration due to road conditions and driving dynamics, i.e., in the case of a real collision that caused an accident. Therefore, this configuration is preferable because the capacity of the processor and the memory space can be limited to an accident situation. That is, it may have caused damage and injuries and can therefore be limited to insurance-related situations.

[0005] On the other hand, a collision
Alternatively, traffic conditions are known in which collision energy is not sufficient to trigger an automatically activated recording device, but on the other hand such an accident or near-accident situation can be taken relatively late if necessary. It is desirable to be able to record for reproduction afterwards. This is desired, for example, when a driver is suspected of suspicious driving of his vehicle has caused an accident in another vehicle or a collision of two other vehicles. On the contrary, there is a possibility that a traveling operation of another vehicle may lead to a dangerous avoidance operation on traffic. Especially in winter road conditions, skidding or even escape for avoidance off the road can occur. This often leads to damage to the vehicle. In addition, animals crossing the road, unpredictable reactions of cyclists, or even children playing, without collisions characterizing accidents that trigger the persistent storage of relevant driving data, especially against subsequent vehicles. A potentially dangerous situation could result. Furthermore, if the vehicle is stuck due to a failure, it is desirable to be able to prove such a dangerous situation by recording at least the mileage and time. Especially accidents with people,
For example, accidents with children or relatively elderly people are dangerous, and such accidents, despite their extremely low collision energy, are no longer automatically detectable,
Or even just being surprised without touching the vehicle can lead to considerable bodily injury.

[0006] Thus, for example, in a vehicle which is provided with a device for data detection in any case, a permanent storage operation of the driving data characteristic of the accident can be triggered manually or merely represents an accident or a condition close to an accident. There is no doubt that it would be advantageous if a device could be provided which could assign or correlate the information to vehicle operating data which could always be detected, that is to say could compensate for the deficiencies in data detection.

[0007] This type of device is difficult to accept, even if the driver has been arranged to be able to erase the possibly burdensome input data of the driver who caused it by mistake. This is not only because this type of equipment necessarily incurs additional costs,
Means for manual input or triggering should be located at least within the reach of the driver, which means that the equipment, signal display,
And, depending on the type of operating element, there are significant positioning problems, especially for later integration.

[0008]

SUMMARY OF THE INVENTION Therefore, the object of the present invention is to operate easily and undoubtedly for manually triggering a fixed storage operation of accident data or for inputting information characteristic of an accident. Means that are very simple and can be manufactured at a low cost, can be easily arranged for later integration and have a high degree of operation. Is to provide certainty.

[0009]

Means and Advantages for Solving the Problems This problem is solved by:
A key of a warning flasher of the vehicle is used as an input member for manual input, and is AND-coupled to at least one signal line of a flashing light on the right side of the vehicle and at least one signal line of a flashing light on the left side of the vehicle. A device is assigned, and a timer for determining an elapsed time is connected downstream of the AND coupling device. If the AND condition is satisfied, a predetermined area of the data storage device is used after a predetermined elapsed time by the microcomputer. Is fixed by triggering a persistent storage operation of the data collected in the first step.

In this case, a warning flasher (commonly known as a "hazard lamp") is usually provided on the vehicle, which simultaneously activates both the left and right turn signals of the vehicle. A device which, as will be described later, must activate such a warning flasher in the event of an accident or vehicle failure, in order to alert other road users to dangerous situations. Therefore, a reasonable method can be obtained by using a key for activating this as manual input means of information characterizing an accident or a state close to an accident.

As described later, according to the present invention, a trigger signal can be obtained only by AND-connecting the current circuits of the left and right turn signals of the vehicle.
The coupling device is used for this purpose, so that a simple construction or easy installation of the device according to the invention is realized. That is, since the warning blinker or the hazard lamp is a device that simultaneously activates both the left and right turn signals of the vehicle as described above, if the AND condition is satisfied in this AND circuit, the key of the warning blinker is changed. Thus, a permanent storage operation of the data collected in a predetermined area of the data storage device is performed. As described above, according to the present invention, the trigger signal is obtained by simply AND-ing the current circuits of the left and right blinking devices of the vehicle in order to detect the operation of the key of the hazard lamp. The corresponding signal line in the circuit may be directly tapped, additional equipment is simple, and the user can attach it by himself.

According to the present invention, a timer for determining the elapsed time is provided for the purpose of providing an allowable range for avoiding triggering of the fixed storage operation regardless of the occurrence of an accident. When the condition is satisfied, a fixed storage operation of the collected data is performed after a predetermined elapsed time.

In an advantageous embodiment, a retriggerable monostable multivibrator is connected downstream of an AND gate connecting the signal lines of the flashing lights on the right and left sides of the vehicle, and the timer is a simple It is configured to start when the stable multivibrator is turned on. In this case, if the monostable multivibrator has not returned to its original state even after the elapsed time has elapsed, the microcomputer triggers a fixed storage operation of the data collected before and after the operation of the warning blinker key. It is configured as follows.

The present invention satisfactorily solves the above-mentioned problem presented, and in any case, operates the easily operable operating mechanism provided in the motor vehicle, that is, the key of the warning flashing device by manual operation of the storing process. It offers the advantage that it can be used for triggering. As mentioned above,
The idea is that the trigger signal is obtained simply by AND-ing the current circuits of the blinkers on the right and left sides of the vehicle. This idea makes use of the transmitter provided in the vehicle and thus offers a solution with significantly lower costs. Apart from the level matching and signal processing logic on the device side, which can be realized in hardware or software, the two lines between the data detection device and the current circuits of the blinkers on the right and left sides of the vehicle are provided. Since only wiring is required, for example, only the left and right output sides of the warning flashing device are connected, the user can easily mount the warning flashing device. The use of the warning flasher key provides a sensible approach in that in the event of an accident or vehicle failure, the warning flasher must function in any case, thereby providing a safeguard against dangerous situations. To alert other road users. In this case, the state is automatically identified in the data storage device—0 or 1 in the simplest case.
Correlate or assign to the data set-furthermore, the driver may be alerted to whether the display function is emerging or performed by optical and / or acoustic signals, so that the driver can remember You can know the possibility of blocking or erasing.

Next, the present invention will be described in detail with reference to the accompanying drawings.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. The warning flasher includes a lit key 2, a pulse generator 3, and a monitoring lamp 4. The warning flashing device 1 is connected to an ignition switch (not shown) via fuses 5 and 6 as a part of the signaling device of the vehicle. Reference numeral 7 indicates a flashing switch of the motor vehicle. Lamps 8 and 9, 10 and 11
Represents blinking lamps on the right and left sides of the vehicle.

The data detection device, in this case the accident recording device, is connected via lines 13 and 14 to the flashing signal line, ie to the corresponding output of the warning flashing device 1. The input circuit 15 is also used to match the voltage level of the blinking signal, and is useful for analyzing accidents, such as turning on / off a light, whether a turn signal or a brake is activated, etc. , 18 are used to match the voltage levels of further status or status signals. A signal processing logic circuit 2 arranged between the input circuit 15 and the microcomputer 19
0 includes an AND gate 21 and a monostable multivibrator 22 connected thereto. in this case,
Since the left and right blinking lamps are both blinked by the operation of the key 2 in the warning blinking device 1, the line 1 is checked to check the AND condition of the current circuits.
Reference numerals 3 and 14 denote signal processing logic circuits 20 via the input circuit 15.
Connected to the input side of The monostable multivibrator 22 is configured to be retriggerable and has a basic switching time that is within an acceptable range of blinking frequencies—for example, t = 2 seconds. The level of the monostable multivibrator 22 is continuously read out at the timing of the system clock pulse of the microcomputer 19, and is compared with the level of a timer realized by software in the microcomputer 19 for supplying a predetermined elapsed time. Be compared. As further shown in FIG. 1, the microcomputer 19 has a frequency / digital converter 23 and data storage for processing acceleration values measured in the X and Y directions, as well as for rotation angle measurements. Equipment (RA
M) 24. This data storage device is provided with a timer and a buffer battery in this application, which provides the conditions for a storage device module that can be removed from the accident recording device.

A microcomputer 19, an external data storage device 24, and a frequency / digital converter 23
Are the address bus 25, data bus 26, control line 2
7, and selection lines 29, 30,. . . . . . Are connected to one another in a manner known per se.

The flowchart of FIG. 2 shows that after the ignition of the vehicle has been switched on (31), the device performs a self-test (32) in which the sensors as well as the status input are checked according to a program. ing. Then, which storage area of the data storage device 24 is used as the ring memories I, II,
A query (33) is made as to whether a data set consisting of measurements of a "and φ is accessible (33). After storage of said data set, a trigger is made by using an appropriate calculation algorithm. The vector is calculated (35) and based on it is checked whether the conditions for an accident-causing collision are met (36), which triggers the automatic recording process. That is, a timer for determining the elapsed time for input storage of the subsequent data set is started (37), and when this elapsed time has elapsed (38),
The data stored in the corresponding ring memories I to II are fixedly stored (39), and when the ignition device is shut off (40), the data detection device is also shut off as follows. That is, the microcomputer 19 executes a predetermined shut-off routine, stops inputting and storing data after a predetermined elapsed time, and prevents new data from being written to the data storage device when the ignition device is turned on again. The data detection device is shut off in a computer-friendly manner.

Preferably, this condition is indicated to the driver by means of an optical signal and / or an acoustic signal when the ignition is switched off and on again.

If the collision condition which triggers the automatic storage process is not fulfilled, it is checked whether the key 2 of the warning flasher 1 has been operated during the routine indicated by (42). . If the key 2 has been operated, the timer starts (43). After a lapse of the predetermined elapsed time (44), for example, after 30 seconds, the microcomputer 19 stops writing the subsequent data set, and stores the data content of the ring memory activated up to that point in time.
For example, the data content of the ring memory I is fixedly stored (45). At the same time, a switch is made to a free ring memory, such as ring memory II, or to a ring memory that has been opened for overwriting purposes (46), and the next waiting data set is replaced with its new one. It is written to the ring memory.

If the elapsed time has not been reached (44), that is, if the driver has turned off the warning flasher by operating its key during the elapsed time, the microcomputer 19 remains in the routine up to that time, and the ignition device is turned off. If it is turned on (47), the elapsed time counter provided in the timer for defining the elapsed time is cleared (48).

For completeness, the following is further stated. Regarding data processing using only accident recording devices, traveling recording devices, and other vehicle data detection devices, there are many possible configurations depending on the importance of the information. It is possible and possible to assign information which can be triggered thereby and which is associated with the accident.

[Brief description of the drawings]

FIG. 1 is a diagram showing a block diagram of an accident recording device selected as an application example.

FIG. 2 is a flowchart showing an operation process of the accident recording device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Warning blinker 2 Key 3 Pulse generator 4 Monitoring lamp 5 Fuse 6 Fuse 7 Flashing switch 8 Lamp 9 Lamp 10 Lamp 11 Lamp 15 Input circuit 19 Microcomputer 20 Signal processing logic circuit 21 AND gate 22 Monostable multivibrator 23 Frequency / Digital converter 24 Data storage device 25 Address bus 26 Data bus 28 Address decoder

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Helmut Baatsk Königsfeld-Burgstraße, Germany 18 (72) Inventor Martin Grüller, Germany Iksheim Bühlweg 3 (56) References JP-A-51-95808 (JP) , A)

Claims (3)

(57) [Scope of request for utility model registration] And 1. A microcomputer, a data storage device to be written with the clock pulse controlled continuously data, and means for inputting manually the information characterizing the state close to the accident or accident is provided in the data collection system in the vehicle, at least one manually key in warning flashing device for a vehicle as an input member for inputting (1) (2) use Irare, right flasher of the vehicle (8,9) An AND coupling device is assigned to one of the two signal lines and at least one of the flashing lights (10, 11) on the left side of the vehicle, and a timer for determining an elapsed time is connected to the AND coupling device after the AND coupling device.
It is continued, if the AND condition is satisfied, after a predetermined time elapsed by the microcomputer (19), a data storage device
(24) Fixed storage operation of data collected in a predetermined area
A data collection device in the vehicle where the operation is triggered . 2. The data storage device according to claim 1, wherein
The device according to claim 1, wherein the device has an area operated as a moly . 3. Flashing lights (8, 8) on the right and left sides of the vehicle.
A retriggerable monostable multivibrator (22) is connected downstream of an AND gate (21) connecting the signal lines of 9, 10, 11), and the timer for determining the elapsed time is provided by the monostable multivibrator. started simultaneously switching on the vibrator (22), if even after elapsed time return to the monostable multivibrator (22) is the original state, the operation of a key of warning flashers (1) (2) before And the operation of fixedly storing data collected after the operation is performed by the microcomputer (1).
Apparatus according to claim 1 , triggered by 9) .