JPS63288390A - Driving state diagnosing recorder - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a driving state diagnostic recording device suitable for use in safe driving to prevent accidents caused by rough driving.

``Prior Art and Its Problems'' Conventionally, as a system for managing driving conditions, a system such as a tachograph that sequentially records vehicle speed that changes over time on recording paper is known.

However, with such a management system, since only the relationship between time and vehicle speed is recorded, it is not possible to know how the driver was driving, which may impede driving management. Ta.

In other words, for example, a person in charge of the operating status of a bus or the like must always confirm that the bus driver is driving safely and that no violent driving is occurring. However, since the above-mentioned management system only knows the relationship between time and vehicle speed, the management of the driver is insufficient, which may impede safe driving.゛“Means for Solving Problems” This invention was made in view of the above circumstances, and is capable of detecting sudden steering, sudden stopping, sudden turning, etc. by the driver. manages their own driving,
Alternatively, the aim is to obtain a driving state diagnosis recording device that allows the employer to sufficiently manage the safety of drivers. , a driving state calculation means for calculating driving conditions such as vehicle speed, acceleration/deceleration, centrifugal force, etc. based on the detection signal from this sensor, and detection data indicating the driving state calculated by the calculation state calculation means and stored in advance. a driving state determining means for determining whether or not the driver has engaged in dangerous driving by comparing the determination standard data indicating driving indicators stored in the driving state determining means; and a determination result determined by the driving state determining means. A recording means for recording the information is provided.

"Function" According to the present invention, the detection data indicating the driving state calculated by the calculation state calculating means is compared with the discrimination reference data indicating the driving index stored in the storage unit in advance, so that the driver Once it is determined whether or not the driver has been driving, the determination result is recorded, so long-term safety management can be performed by observing the recorded data at regular intervals.

"Example" Hereinafter, an example of the present invention will be described with reference to FIGS. 1 to 3.

First, in Fig. 1, the sensor indicated by the symbol l is a vehicle speed sensor (driving state detection sensor), which outputs a pulse at a cycle corresponding to the rotational speed of the wheels and detects the speed of a vehicle such as a bus or truck. What is shown is a steering sensor (driving state detection sensor) that detects the amount of rotation of the steering wheel, code 3.
1 is a loading rate sensor (driving state detection sensor) that detects the proportion of the weight of objects loaded on the bed of a truck, etc. These vehicle speed sensor 1, steering sensor 2, and loading rate sensor 3 are as follows: They are respectively connected to input terminals of a controller (microcomputer unit) (operating state calculation means/operating state determining means) 4.

The controller 4 calculates the vehicle's sudden braking, steering wheel, sudden turning (centrifugal force), cargo loading rate, etc. based on the data output from the vehicle speed sensor 11, steering sensor 2, and loading rate sensor 3, respectively. , This calculation result is used to diagnose dangerous driving, and the central processing unit (CPU), memory (RAM, ROM), I1
0 interface, a timer for calculating the deceleration of the vehicle, etc. (not shown).

The results calculated by the controller 4 are displayed on a display (recording means) connected to the output terminal of the controller 4.
5, and is also sequentially recorded on a recording card (see FIG. 2) 8 inserted into a card punching device (recording means) 6 as the number of occurrences of dangerous driving.

The indicator 5 is, for example, an alarm, a warning lamp, etc. installed in front of the driver's seat, and each time the vehicle suddenly brakes, turns suddenly, turns suddenly (centrifugal force), etc. This is to notify the driver of the
Further, the card punching device 6 sequentially records the number of occurrences of dangerous driving (or 10 times, 50 times, 100 times,・When this occurs a predetermined number of times), it is recorded.

Further, the controller 4 is equipped with a ROM that stores, for example, reference setting values depending on the vehicle type and program data (described in the flowchart below) corresponding to dangerous items such as sudden braking. Furthermore, the controller l is provided with an EPROM 7 as an external ROM,
This EPROM 7 is designed to save data on the number of times dangerous driving has occurred so that it will not be erased when the power is turned off by removing the ignition key.

Therefore, the number of occurrences of dangerous driving is updated and stored in this E'F ROM"7 every time driving is determined.

Next, the contents of the program stored in the ROM of the driving diagnosis recording device will be explained with reference to FIG. 3.

<Step l> Data indicating the vehicle speed is fetched from the vehicle speed sensor l and stored in the memory (RAM).

Step 2> Data indicating the amount of operation of the steering wheel is fetched from the steering sensor 2 and stored in the memory (RAM).

Step 3> Data indicating the loading rate of the cargo loaded on the loading platform is taken in from the loading rate sensor 3 and stored in the memory (RAM).

<Step 4> Based on the vehicle speed data stored in step 1, the deceleration of the vehicle is calculated. In this case, the vehicle speed is measured at regular time intervals (ΔT) by a timer, and the deceleration (ΔS/ΔT) is sequentially calculated from the vehicle speed difference (ΔS) measured between these ΔTs.

<Step 5> The centrifugal force acting on the vehicle is calculated based on the vehicle speed and the steering wheel operation amount detected in steps 1 and 2.

Step 6> Determine whether the deceleration of the vehicle calculated in Step 4 is smaller than a reference setting value (for example, 0.5G) stored in the memory (for example, ROM in the controller 1),
If No, a flag F1 indicating a drilling request (a request to drill a hole in the sudden braking section of the card) is set in a predetermined area of the memory (RAM), and a counter indicating the number of sudden braking is incremented by 1. (Step 7)
. Further, if the result of the determination in step 6 is YES, the process proceeds to the next step 8.

Step 8> Determine whether the amount of operation of the handle detected in step 2 is smaller than a reference setting value (for example, 45°/5ec) stored in the memory (for example, ROM in the controller 1), If NO, a flag F indicating a drilling request (request to drill into the sudden braking section of the card) is set in a predetermined area of the memory (RAM), and a counter indicating the number of sudden steering turns is set to 1. (Step 9).

Further, if the result of the determination in step 8 is YES, the process proceeds to the next step IO.

<Step 10>: Determine whether the centrifugal force of the vehicle calculated in Step 5 is smaller than a reference setting value (for example, centrifugal force; 0.4G) stored in the memory (for example, ROM in the controller 1). If the answer is NO, flag F indicates a request to drill a hole in a predetermined area of the memory (RAM) (a request to drill a hole in the term of the card's sudden turn).

At the same time, a counter indicating the number of sharp turns is incremented by 1 (step 11). Further, if the result of the determination in step 1O is YES, the process proceeds to the next step 12.

Step 12> It is determined whether or not the loading rate detected in step 3 is smaller than the reference setting value stored in the memory (for example, ROM in the controller l), and if NO, the loading ratio detected in step 3 is
A flag F4 indicating a drilling request (a request to drill a hole in the card loading rate term) is set in a predetermined area of AM), and a counter indicating the number of sharp turns is incremented by 1 (step 13). Furthermore, if the result of the determination in step 12 is YES, the process proceeds to the next step i4.

Step 14> It is determined whether flags F1 to F4 indicating the drilling request are set in a predetermined area of the memory (RAM), and NO is determined.
In the case of YES, the process returns to step 1, and in the case of YES, the process proceeds to the next step 15.

Step 15> It is determined whether or not the flag F1 indicating a drilling request is cleared. If no, in step 16, a display indicating that a sudden brake has occurred is displayed on the display 5, and the card drilling device is activated. A hole is punched in the section of the record card 8 set at No. 6 indicating sudden braking in accordance with the number of occurrences. Further, if the flag F indicating the drilling request is cleared (YES), the process proceeds to the next step 17.

The flag F indicating the perforation request is cleared when the predetermined column of the recording card is perforated (hereinafter, the same applies to flags F to F4).

Step 17> It is determined whether the flag F indicating a drilling request is cleared, and if NO, in step 18, a display indicating that a sudden steering has occurred is displayed on the display 5, and , a hole is punched in the field indicating the sudden handle of the recording card 8 set in the card punching device 6 in accordance with the number of occurrences. If the flag Ft indicating a drilling request is cleared (YES), the process proceeds to the next step I9.

Step +9> It is determined whether the flag F indicating a drilling request is cleared, and if NO, in step 20, a display indicating that a sudden turn has occurred is displayed on the display 5, and a card drilling request is made. A hole is punched in the section of the recording card 8 set in the device 6 that indicates a sudden turn in accordance with the number of occurrences. Also,
If the flag F indicating a drilling request is cleared (
If YES), next step 2! Proceed to.

Step 21> It is determined whether the flag F4 indicating a drilling request is cleared, and if No, in step 22, a display is displayed on the display 5 indicating that the loading rate has been exceeded. and the recording card 8 set in the card punching device 6
Perform drilling processing according to the number of occurrences in the section indicating that the loading rate is exceeded. Further, if the flag F4 indicating a drilling request is cleared (YES), the process returns to the first step 1.

The counter value updated in step 7.9.11.13 above is stored in the external ROM 7 for data protection, and is cleared by removing the recording card 8 set in the card punching device 6. It has become.

According to the driving state diagnosis recording device configured as above, sudden braking, sudden steering, sudden turning, excessive loading rate, etc.
The number of times such dangers have occurred can be recorded sequentially on the record card 8 by drilling holes, so by removing the record card 8 every 1 to 2 months and observing the entered data, the driver can see it at a glance. You can recognize your own driving status. Furthermore, by checking the data on this record card, the employer can remind the driver to always drive safely.

In addition, the driving condition diagnosis recording device described above does not allow sudden braking,
We have taken sudden steering, sudden turns, and excessive loading rates as examples, but are not limited to these, and it is also possible to add various other dangerous factors to further improve safe driving. good.

"Effects of the Invention" As described in detail above, according to the present invention, the detection data indicating the operating state calculated by the operating state calculating means is used as a discriminating criterion indicating the operating index stored in the storage section in advance. The system is equipped with a driving state determining means that compares the data with the data to determine whether or not the driver has engaged in dangerous driving, and a recording means that records the determination result determined by the driving state determining means. By observing the recorded data at regular intervals, drivers can recognize their own driving conditions at a glance.In addition, by having employers check the recorded data, they can provide constant information to drivers. This has the effect of encouraging the driver to drive safely.

[Brief explanation of the drawing]

FIGS. 1 to 3 are diagrams showing an embodiment of the present invention,
FIG. 1 is a block diagram showing its schematic configuration, FIG. 2 is a diagram showing the format of a recording card, and FIG. 3 is a flowchart showing the recording operation of dangerous driving. l...Vehicle speed sensor (driving state detection sensor) 2.
... Steering sensor (driving state detection sensor) 3 ... Loading rate sensor (driving state detection sensor) 4
... Controller (operating state calculation means/operating state determining means) 5 ...
・Display device (recording means) 6... Card punching device (recording means) 8...
・・・Record card

Claims (1)

[Claims] A driving state detection sensor that detects the driving state, a driving state calculation means that calculates the driving state such as vehicle speed, acceleration/deceleration, centrifugal force, etc. based on the detection signal from this sensor, and a driving state calculation means that calculates the driving state such as vehicle speed, acceleration/deceleration, centrifugal force, etc. a driving state determining means for determining whether or not a driver has engaged in dangerous driving by comparing detected data indicating the driving state with determination reference data indicating a driving index stored in advance in a storage unit; A driving state diagnosis recording device comprising a recording means for recording the determination result determined by the state determining means.