JP2000194895A - Vehicle operation management system and digital vehicle operation recorder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To recognize reckless drive, to instruct safety drive and to analyze accident conditions by recognizing the present state of a vehicle during an operation, continuously detecting an impact applied to the vehicle itself and recording it. SOLUTION: This vehicle operation management system is composed of an onboard device part A for detecting the impact and a speed generated during the travel of the vehicle or at the stoppage by signals and displaying and recording the signals and the various kinds of data relating to a driver and the vehicle and a management department device part B for controlling the signals and the data from the onboard device part A. In the onboard device part A, the signals from an acceleration sensor 6 and the data are mainly recorded in a memory card 5, the operation state of the vehicle is displayed and the various kinds of condition setting are performed. By reading the recorded signals and the various kinds of the data in the management department device part B by the memory card 5, the operation condition of the vehicle is recorded, preserved, displayed and analyzed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention collects vehicle operation information including various types of information such as the speed of a vehicle such as an automobile or an impact applied to the vehicle in the form of digital data, and easily analyzes the accumulated data. The present invention relates to a vehicle operation management system and a digital vehicle operation recording device capable of grasping a driving state of an automobile by performing the operation.

[0002]

2. Description of the Related Art Safe operation management in a company operating a vehicle, such as a freight transportation business, a passenger transportation business, a driving school, etc., is the most important issue. In order to grasp the progress during the operation involving such vehicle operation, the manager of the company or the like needs to receive a work report. For this work report,
In the past, there was a way to submit work reports as documents.
In addition, in the verbal work report, in addition to directly reporting to the manager, there was a means by telephone or radio. Such a work report using documents requires time and effort to prepare the documents, and furthermore, it is necessary to hand over the documents. Verbal work reports reduce the number of reporters, but often cannot be accurately communicated unless the driver, the reporter, and the administrative department of the company have to talk at the same time.

On the other hand, for example, installation of an operation recorder is required by law for corporate taxis, sightseeing buses, and freight vehicles such as trucks exceeding the specified weight, excluding individuals. A tachograph 51 as shown in FIGS. 12 and 13 is conventionally known as an apparatus for performing such vehicle operation management. The tachograph 51 has a speed axis in the radial direction of the disc-shaped chart paper 52 and a time axis in a direction around the speed axis, and makes one round in, for example, 24 hours. Since the speed corresponding to the time is recorded on the chart paper 52, the presence or absence of the speed violation of the vehicle can be known from the speed record, and is used as safety operation management data.

In this tachograph 51, as shown in FIG. 14, a chart paper 52 is first set on an operation recorder, and the mileage, time, and speed generated by the running of the car are recorded on the chart paper 52, for example, with a width of 5 mm. It records data for 5 minutes in between. In the tachograph 51, when the driving of one day is finished and the investigation of the driving condition of the day is started, the speed is analyzed by looking at the chart paper 52 with a magnifying glass. The search at the time of occurrence of a problem such as a vehicle accident has been performed by carefully searching for a problem location on the chart paper 52.

[0005]

However, the operation recorder of the tachograph 51 as described above is limited to those which can be read and judged by humans. Therefore, this operation recorder is used for labor management of the driver after driving is completed, and there is a problem that it is impossible to know the current state of the running vehicle.

When a vehicle accident occurs, first, in order to know the state of the vehicle immediately before the accident or the operation status of the driver, the data is finely read using a magnifying glass or a magnifying glass or the chart paper 52 is enlarged. Copy and read. Next, it is necessary to perform a calculation operation based on the data to obtain detailed data, for example, acceleration and the like, to determine whether or not a braking operation has been performed, and to search for a point of occurrence of a problem. Such an analysis operation using a magnifying glass or a magnifying glass has a problem that if the resolution of the tachograph is low, it cannot be regarded as accurate data. In particular, the cause of the accident is determined by subjective estimation of the manager of the company or the judge of the police or the like using only the chart paper 52, and the persuasive power is poor.

[0007] An accelerometer may be attached to record a change in acceleration due to sudden braking or sudden start applied to the vehicle. However, equipment cost is increased due to the provision of the accelerometer and the recording device, which is uneconomical. There was a problem. In addition, there is a problem that time matching with the tachograph 51 is necessary, and the adjustment is difficult.

[0008] The present invention has been made in view of the above-mentioned problems, and it is possible to know the current state of a running vehicle and to continuously detect and record the impact applied to the vehicle itself. It is an object of the present invention to provide a vehicle operation management system and a digital vehicle operation recording device capable of grasping reckless driving, guiding safe driving, and analyzing an accident situation.

[0009]

In order to achieve the above object, a vehicle operation management system according to the present invention detects an impact and a speed generated during running or stopping of a vehicle by a signal,
A vehicle operation management system including an in-vehicle device unit that displays and records these signals and various data related to the driver and the vehicle, and a management unit device unit that controls signals and data from the in-vehicle device unit, In the in-vehicle device section, the signal from the acceleration sensor and the data are mainly recorded on a memory card, the operation state of the vehicle is displayed, various conditions are set, and the signal is sent to the management section device section by the memory card. In addition, the gist of the present invention is to record, save, display, and analyze the operation status of a vehicle by reading various data. The data and signals from the vehicle-mounted device can be configured to display and analyze the operation state of the vehicle in the administrative device via a memory card.

[0010] According to the vehicle operation management system having the above structure, the on-board equipment section continuously detects the impact applied to the running vehicle itself, and generates a signal relating to the driver and the vehicle generated according to the state of the vehicle operation. The current speed during vehicle operation,
A state such as acceleration or position can be detected. The communication between the in-vehicle equipment unit and the management department equipment unit is communicated using a memory card, and by analyzing various signals and data recorded in the in-vehicle equipment unit, the driver's reckless driving can be grasped, and specific accidents in traffic accidents can be identified. Can be analyzed. In addition, when a traffic accident occurs, various signals and data indicating the operation status of the vehicle are read through the management department equipment department or the administrative equipment department, analyzed, and if there is tampering, it can be easily identified. Can be found.

Further, the vehicle operation management system detects an impact and a speed generated during running or stop of the vehicle by signals, and displays and records these signals and various data relating to the driver and the vehicle. A vehicle operation management system comprising a management section device section for controlling signals and data from the on-vehicle device section, wherein the on-vehicle device section mainly includes signals detected from acceleration sensors, and current position information and vehicle status. It is also possible to record, save, display, and analyze the operation status of the vehicle by reading data related to information in the management section device section by wireless communication.

As described above, in the vehicle operation management system in which various signals and data detected by the in-vehicle equipment section are communicated between the management section equipment sections by wireless communication, the management section manages the current position information and the vehicle status information while the vehicle is running. Can be grasped in real time. In addition, it is possible to instantly analyze the transmitted and received various signals and data, and for example, it is possible to instantaneously detect the occurrence of a traffic accident. Even in such a vehicle operation management system using wireless communication, it is possible to grasp the driver's reckless driving and analyze specific accidents in traffic accidents by analyzing signals and data recorded on the memory card. it can.

[0013] A digital vehicle operation recording device according to the present invention relates to a detection unit that outputs a shock applied to the vehicle itself as a signal while the vehicle is running or stopped, a signal from the detection unit, and a driver and a vehicle. A display setting unit that displays various data and sets various conditions related to the operation of the vehicle, and records a traveling pulse signal generated according to the traveling of the vehicle and various vehicle signals generated according to the operating state of the vehicle as data on a recording medium. A main unit having a function of performing, a control unit that analyzes various signals and data recorded in the main unit,
The gist consists of:

According to the digital vehicle operation recording device having the above-described configuration, the detection unit continuously detects the impact applied to the running vehicle itself, and the running pulse signal generated according to the vehicle running in the main body unit and the vehicle. By recording various vehicle signals generated according to the state of operation as data, it is possible to know the current state of the vehicle such as speed, acceleration, or position during operation. By analyzing various signals and data recorded in the main unit, the control unit on the management section or the administrative side can grasp the driver's reckless driving and analyze a specific accident in a traffic accident.

The detection section detects accelerations generated in the front-rear direction and the left-right direction of the vehicle traveling direction by an acceleration sensor, and outputs them as signals. According to this detector,
The acceleration based on the driver's operation in the front-rear direction and the left-right direction while the vehicle is running can be measured, and the driving state of the driver can be grasped more accurately.

The main unit records signals from the detection unit and data on the various vehicle signals on a memory card. The control unit is capable of receiving an impact signal, a traveling pulse, and a plurality of signals relating to the vehicle from the detection unit, and is configured to be able to read the recorded content of the main body unit with a memory card.

[0017]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of a vehicle operation management system and a digital vehicle operation recording apparatus according to the present invention. FIG. 1 is a block diagram showing a vehicle operation management system according to the present invention. The vehicle operation management system according to the present invention mainly includes an in-vehicle device section A, a management section apparatus section B, an administrative apparatus section C, and software for analysis or falsification detection, and records, saves, and displays the operation state of the vehicle. And analysis.

The digital vehicle operation recording device serving as the on-vehicle device unit A detects an acceleration or an impact applied to the vehicle itself due to a collision or an accident when the vehicle is running or stopped, and detects a signal related to the impact and other signals. A detection unit 1 for detecting data, a display setting unit 2 for displaying signals from the detection unit 1 and various data relating to the driver and the vehicle, and setting various conditions relating to the operation of the vehicle; The main body 4 has a function of recording various vehicle signals generated according to the operating state of the vehicle as data on a recording medium. The in-vehicle device section A further includes a memory card 5, an acceleration sensor 6, a GPS (longitude / latitude position information).
The receiving unit 7 and the vehicle input signal 8 are connected.

FIG. 2 shows an embodiment of the invention of a digital vehicle operation recording device serving as an on-vehicle device. The detecting unit 1 includes a traveling pulse signal receiving unit 3 for detecting a normal vehicle speed, in addition to the acceleration sensor 6, and detects operation data and the like of a running vehicle. Acceleration sensor 6
Is for detecting acceleration generated by sudden braking or sudden starting of a vehicle, and impact due to a collision accident. Also,
As will be described later, the acceleration sensor 6 includes an acceleration sensor detector 6x that detects acceleration in the traveling direction of the automobile or the like, that is, an acceleration in the front-rear direction, and an acceleration that detects acceleration in the left-right direction perpendicular to the traveling direction of the automobile or the like. Set the sensor detector 6y to 2
In this configuration, an acceleration sensor detector (not shown) is arranged so as to operate vertically. Such an acceleration sensor 6 is mounted on a vehicle or the like, and detects acceleration due to acceleration / deceleration during traveling of the vehicle and acceleration during turning. The running pulse signal receiving section 3 detects a pulse in conjunction with the rotation speed of the tire of the vehicle and measures the running speed.

The display setting section 2 includes a time / speed / acceleration display, an acceleration alarm, an elapsed time display, a mileage display, a time display monitor, and the like. The display setting unit 2 is connected to the main unit 4 and displays data such as speed, acceleration, and traveling distance from the detection unit 1 during operation. In addition, it is possible to set a maximum driving speed, an acceleration, and a condition of whether or not to generate a warning sound.

The main unit 4 comprises a central control unit CPU.
It functions as a recording unit. The main body 4 includes a traveling pulse signal generated according to the traveling of the vehicle measured by the traveling pulse signal receiving unit 3 and data of various vehicle signals generated according to the state of the vehicle operation. The state is recorded on a memory card 5 described later.

The main unit 4 includes a backup battery 1.
0, and the following operation management information is set as initial information unique to the vehicle. The recorded contents are set by the display setting unit 2 with the management PC card 11 inserted. 2 Time change version The year, month, day, hour, minute, and second are automatically updated (changed) for each change operation. 3. Vehicle registration number This records the so-called vehicle number such as “Yokohama 300A 1224” on the management PC card 11 by the management section personal computer 12 of the management section equipment section B. The management PC card 11 is inserted into the control unit 13 and transferred by operating the display setting unit 2. 4 Vehicle code This is the number assigned to each vehicle individually by the company administrator. 5 Running pulse count This is the distance traveled by one running pulse. Are recorded.

Memory card (PC card for recording) 5
Is a recording PC card in which operation management data is recorded as follows. (1) As management information, [Recording content] [Recording source] [Writing time] 1 Driver name At the time of issuing PC card for administrative department 2 At the time of issuing PC card for operating area administrative department (2) As vehicle-specific information, [Recording content] [Recording source] [Writing time] 3 years / months / hours / minutes / seconds Control section control section At start of recording (at restart) 4 Time-changed version Control section control section At start of recording (at restart) 5 Vehicle registration number Control section for management section At start of recording (at restart) 6 Vehicle code Control section at start of recording (at restart) 7 Running pulse coefficient Control section for management section At start of recording (at restart) ( 3) As the operation status information, [Recording content] [Recording source] [Writing time] 8 Running pulse に Every sampling period after starting recording 9 Vehicle input signal サ ン プ リ ン グ Sampling period after starting recording 10 Acceleration information ─── Latitude / longitude position information for each sampling period after recording started ─── 12 Latitude / longitude position information recorded for each sampling period after recording started This is the display setting unit 2, acceleration This is information on the sensor 6, the GPS receiver 7, and the like. If the order of recording changes depending on the presence or absence of these, it is recorded as a recording form.

The GPS receiving section 7 transmits position information of the latitude and longitude of the vehicle to the main body section 4. The vehicle input signal 8 includes light ON / OFF, turn signal light ON / O
The signal is transmitted by wiring of signals such as FF, brake, clutch, accelerator, door opening / closing, steering wheel angle, engine speed, seat belt wearing / absence, airbag, ABS (anti-knock brake system) and the like. Further, as the vehicle input signal 8, it is also possible to transmit a signal such as an empty or occupied state of a taxi, a temperature of a pallet of a refrigerated freight car, a loading capacity or a weight of a freight car or the like.

FIG. 3 is an explanatory view showing a digital vehicle operation recording device in which two speed sensor detectors are arranged. The acceleration sensor 6 includes acceleration sensor detectors 6x and 6
Two y's are arranged so as to be orthogonal to the X direction and the Y direction. The X-direction acceleration sensor detector 6x detects the acceleration in the traveling direction of the automobile or the like, that is, the acceleration in the front-rear direction.
The direction acceleration sensor detection unit 6y detects the acceleration in the left-right direction that is perpendicular to the traveling direction of the vehicle or the like.

Further, in the case 14, a shock detecting unit such as a piezoelectric accelerometer, an accelerometer using a gauge for a resistance wire strain gauge, or an accelerometer using a semiconductor system, which is arranged to operate in a vertical direction. 15 is provided with a processing circuit so as to output a voltage by providing a drive circuit (not shown) and a hold circuit.

The digital vehicle operation recording device to which the acceleration sensor 6 configured as described above is connected is used by being mounted on the body of an automobile. The processing unit has a function of converting and outputting the magnitude of the acceleration generated while the vehicle is running. The magnitude of the acceleration measured from this processing unit is displayed, for example, in units of 0.1 G. Further, the acceleration sensor 6
In addition to measuring the acceleration based on the driver's operation in the front-rear direction and the left-right direction while driving a car equipped with the, the vertical acceleration due to road conditions etc. is also measured, so that the driver's driving state can be grasped more accurately can do. In addition, it is possible to measure the acceleration in the front-rear direction, the left-right direction, and the vertical direction during driving of the automobile. By recording such measurement results, it is possible to pursue the relationship between the driving technique and the functions of the vehicle, and it is also possible to grasp the driving state of the driver, which can be used to prevent accidents and to prevent accidents. Has the characteristic that it can be used for estimating the cause.

The equipment section B of the management section is installed in the passenger transportation business such as a freight transportation business or a taxi company, and serves as a base at a position different from a vehicle. The management section equipment section B mainly includes a management section personal computer 12 serving as a management section control section 13 for analyzing various signals and data recorded in the main body section 4 constituting the in-vehicle apparatus section A. It comprises a reader / writer 16, a printer 17, analysis software, and a management PC card 11.

This analysis software performs erasing of the management PC card 11, writing of initial information, storage and display of records, and the like. In addition, it detects a falsification of the content recorded on the memory card 5. Management PC card 11
Is a PC card. This management PC card 11
It is a PC card on which an administrator ID is recorded, and is used when changing operation management information.

The administrative equipment unit C is, for example, installed at a police station or the like under the jurisdiction over the occurrence of a traffic accident, and serves as a base at a location different from the automobile. The administrative equipment unit C mainly includes a personal computer 19 for a management department which serves as an administrative control unit 18 for analyzing various signals and data recorded in the main body unit 4 constituting the on-vehicle equipment unit A,
Further, it comprises software for falsification detection. The administrative control unit 18 controls the operation of the vehicle operation recording device according to a basic program stored in advance. The tampering detection software reads data and detects tampering through the serial line of the main unit 3 of the in-vehicle device unit A.

Next, an example of the operation of the vehicle operation management system thus configured will be described with reference to a digital vehicle operation recording device shown in FIG. 4 and a flowchart showing the relationship between the operation state of the vehicle and the digital vehicle operation recording device. First, the driver connects the memory card (recording PC card) 5 to the main body 4 before the operation of the vehicle starts.

When the vehicle is driven in this state, the traveling pulse signal receiving unit 3 connected to the main unit 4 detects the speed,
The acceleration sensor 6 (acceleration sensor detector 6x, acceleration sensor detector 6y) detects a sudden acceleration, a sudden braking, or an impact due to a sudden steering wheel operation, so that the running distance, traveling time,
Various data such as speed and speed are displayed on the display setting unit 2 and are recorded on the memory card (recording PC card) 5. The display of these various data is displayed only when the display setting unit 2 is connected. Various data are recorded on a memory card (recording PC card) 5.
Is recorded only when is attached to the main body 4. Thus, the recorded contents of various data cannot be changed or tampered with during operation.

A vehicle input signal 8 is connected to the main body 4.
The vehicle input signal 8 records the operation of the light ON / OFF, the turn signal light ON / OFF, the brake, the clutch, the accelerator, the presence / absence of opening / closing of the door, the steering wheel angle, and the like in bit units. Recording of these signals is performed only when the memory card (recording PC card) 5 is mounted on the main body 4. As in the case of preventing the recorded contents of various data from being changed, the recorded contents of each signal cannot be changed or falsified during operation.

The display setting unit 2 serving as the on-vehicle device unit A displays speed, mileage, acceleration, and the like. The acceleration can be displayed only when the acceleration sensor 6 is connected. It is also possible to configure so as to activate a wakeup alarm. Furthermore, change of operation management information and date and time,
The time can be changed only when the management PC card 11 is inserted. Thus, it is possible to prevent the driver himself from changing or falsifying the recorded contents of various data and various operations later. The connection connector of the display setting unit 2 provided in the main body unit 4 is common to the connection connector of the acceleration sensor 6, and is provided at two places on the front surface and the back surface. The user is in the display setting section 2
Is connected to one of the connectors. The display setting unit 2 cannot be connected to both connectors. When the display setting unit 2 is connected to both the connectors, an alarm sound is issued. Therefore, in the present invention, it is possible to solve the problem of starting the operation of the vehicle without starting the operation management system.

The main unit 4 can use the following functions only when the acceleration sensor 6 is connected. The display of the acceleration in the front-rear direction and the left-right direction of the vehicle can be displayed when the vehicle is connected to the display setting unit 2. These displays are displayed on a memory card (recording P
The recording can be performed when the (C card) 5 is attached to the main body 4. The connector of the acceleration sensor 6 provided in the main body 4 is common to the connector of the display setting unit 2 and is provided at two places on the front and back. The user connects the acceleration sensor 6 to one of the connectors. The acceleration sensor 6 cannot be connected to both connectors. When the acceleration sensor 6 is connected to both connectors, an alarm sound is generated. The shape of the connector is G
The connector has the same shape as the connector of the PS receiver 7, and an audible alarm is generated when the connector is erroneously inserted.

The main unit 4 can use the following functions only when the GPS receiving unit 7 is connected, and records the latitude and longitude. This recording can be performed only when the memory card (recording PC card) 5 is installed. The connection connector of the GPS receiver 7 provided in the main body 4 is common to the connector of the display setting unit 2, and an audible alarm is generated when the connector is erroneously inserted. The GPS receiver 7 can acquire information on the date, day of the week, hour, minute, second, latitude, longitude, speed, and traveling direction. Actually, the date, month, day, hour, minute, and second are obtained by the clock inside the main body unit 4 and the speed is obtained by the traveling pulse signal receiving unit 3. Therefore, only the latitude and longitude are used, and other data can be ignored. .

In the event of an accident, an audit, etc.
Administrative PC 19 of the administrative equipment C and in-vehicle equipment A
The main unit 4 is connected with a dedicated cable to read data and detect data tampering with tampering detection software. This data can be read through a memory card (recording PC card) 5.

Next, a method of using the thus configured vehicle operation management system will be described with reference to a flowchart shown in FIG. (1) Initial Settings (1) The operation manager registers a new management PC card 11 with the management section personal computer 12 constituting the management section device section B. (2) The operation manager writes vehicle-specific information (vehicle registration number, vehicle code, running pulse coefficient, etc.) to the management PC card 11 by the management section personal computer 12 constituting the management section device section B. (3) The operation manager inserts the management PC card 11 into the main body 4 before starting the engine of the vehicle. Note that the memory card 5 (recording PC card) may be inserted after the engine is started, but in that case, an alarm sound or the like is generated at the time of starting the engine. (4) The display setting unit 2 is connected to the main unit 4. (5) The operation manager starts the engine. (I) At this time, the management P
The vehicle-specific information in the C card 11 is read into the main body 4. (Ii) The time is set by operating the display setting unit 2. However, when writing the vehicle-specific information (vehicle registration number, vehicle code, running pulse coefficient, and the like) to the management PC card 11, it is also possible to select writing from other than the display setting unit 2. After the management PC card 11 is inserted and the engine is started, vehicle-specific information and time are written. (6) The operation manager stops the engine after extracting the management PC card 11 into which the data has been written. Alternatively, after stopping the engine, the management PC card 11 can be removed.

(2) Normal operation (1) The operation manager operates the memory card 5 (recording PC) on the management section personal computer 12 constituting the management section device section B.
Card) and write the driver name, operating area, etc. (2) The operation manager hands the memory card 5 (recording PC card) to the driver, and the driver places the memory card 5 (recording PC card) in the main body 4 constituting the in-vehicle device unit A before starting the engine. Insert Note that the memory card 5 (recording PC card) may be inserted after the engine is started, but in that case, an alarm sound or the like is generated at the time of starting the engine. (3) Start the engine. (I) At this time, devices such as the main unit 4, the display setting unit 2, the acceleration sensor 6, and the GPS receiving unit 7 are powered on. (Ii) The main unit 4 determines whether or not the memory card 5 (recording PC card) is a recordable card. (iii) The main unit 4 writes the recording start date and time, the date and time change history, etc. to the memory card 5 (PC card for recording). (Iv) The main unit 4 writes information such as acceleration, the number of running pulses, the longitude / latitude position, the vehicle signal, and the like for each sampling cycle into the memory card 5 (PC card for recording). (V) Time, speed, acceleration, running distance, and the like can be displayed on the display setting unit 2. (Vi) Memory card 5 (PC for recording)
When the card is removed, a warning sound etc. is generated. When the recording capacity of the memory card 5 (recording PC card) becomes small, the display setting unit 2 and the like notify the driver. (4) After stopping the engine, the driver removes the memory card 5 (recording PC card) from the main body 4 and hands the memory card 5 (recording PC card) to the operation manager. (5) The operation manager saves the recorded data of the memory card 5 (recording PC card) together with the storage date and time and the name of the storage operation using the management section personal computer 12 of the management section device section B.

FIGS. 5A, 5B, 5C and 5D
Is a graph in which changes in acceleration / deceleration in the traveling direction, acceleration / deceleration in the left / right direction, and the traveling speed that occur when the vehicle travels are recorded. This graph shows the data obtained by the vehicle operation management system according to the present invention when the vehicle actually travels on the road (see FIG. 5A).
(B)), data of acceleration in the left-right direction due to steering operation (FIG. 5 (c)) and data of traveling speed at that time (FIG. 5 (d)). At the twelve positions on the road as shown in FIG. 5 (a), that is, at the "left turn curve", the vehicle instantaneously brakes (decelerates) to about 55 km.
Although the speed decreased from 45 km / h to 45 km / h, it accelerated in the second half and turned left.
This means that a 5G shock was received. In this state, the person in the rear seat swings greatly from the left seat to the right seat. 17 from the position 1 shown in FIG.
By operating the steering wheel at the position of, the acceleration in the left-right direction, such as the position of 9, the position of 10, as shown in FIG. 5C, is detected. Incidentally, it is said that a passenger who was standing in a running bus and hung on the hanging leather receives a great impact from the hanging leather, and the passenger can withstand only about 0.2 G. When displayed on the graph in this manner, the relationship between the acceleration state and the deceleration state and the operation of the steering wheel can be understood at a glance, and it is possible to understand what kind of driving was performed.

In the left turn curve at the position 13 in FIG. 5A, if the driver turns left without sufficiently decelerating, a large acceleration is detected in the right curve, meaning that the driver did not turn left at a safe speed. I do. As described above, when the driving state of the driver is determined based on only the information of the acceleration / deceleration data (FIG. 5B) and the traveling speed data (FIG. 5D), the traveling speed is simply reduced. Although it can be determined, it is possible to solve the problem that it is not possible to determine that the vehicle has been violently driven.

FIGS. 6A, 6B, and 6C are graphs of data obtained by the vehicle operation management system. One method is that the data obtained by the vehicle operation management system is graphed by the manager for each data in the entire company. For example, the driving distance, the driving time, the sudden start, the sudden braking, or the number of times of the sudden steering on a monthly basis can be quantified (FIG. 6A). Further, it is also possible to graph or chart each of the above-mentioned elements to make it easy to understand the factors of the safe driving (FIG. 6B). In addition, the driving distance, running time, sudden start, sudden braking, etc. of all the drivers of the company are listed (FIG. 6C), and not only the driving condition of the whole company but also the driving condition of the individual can be easily obtained. It is also possible to grasp. As described above, since the relationship between the driving technique and the function of the vehicle or the like can be pursued, the driving state of each driver can be grasped, which can be used for accident prevention.

FIGS. 7 to 10 illustrate means for analyzing a specific traffic accident model.
FIG. 4 is a simulation diagram for explaining a means for analyzing a model of a traffic accident. In this illustration, a vehicle traveling on a gentle curve on the left at a speed exceeding the legal speed of 80 km / h enters a straight road and further accelerates (100 km / h). After that, I found an obstacle and set the brakes, but I was not in time,
The driver turned the steering wheel and tried to avoid it, but eventually hit the left front of the vehicle and crashed into the guard lane in the opposite lane and stopped.

FIG. 8 is a graph showing acceleration / deceleration before and after the occurrence of an accident. In this graph, the horizontal axis shows the passage of time from left to right, the upper part of the vertical axis shows the deceleration state, and the lower part of the vertical axis shows the acceleration state.
This graph shows the acceleration / deceleration state of the car about 9 seconds before the accident occurred, found an obstacle ahead 5 seconds before the accident occurred, depressed the brake, and the tires were kept on for 2 seconds from this time. Locks and tire marks on the road. Three seconds later, the vehicle crashes on the guardrail and it can be determined that the vehicle has stopped.

FIG. 9 is a graph showing how the driver operated the steering wheel by measuring left and right acceleration before and after the occurrence of the accident. The acceleration sensor 6 serving as the detection unit 1 in the digital vehicle operation recording device according to the present invention is characterized by measuring left and right accelerations.
In this graph, the horizontal axis shows the passage of time from left to right, the upper part of the vertical axis shows acceleration in the right direction, and the lower part of the vertical axis shows acceleration in the left direction. .
This graph shows that the driver of the car
The car made a gentle left curve 0 seconds before, and found an obstacle 5 seconds before the accident occurred, stepped on the brake and turned the steering wheel to the right to avoid the problem. Acceleration is applied. For the next two seconds, the tires lock and the steering wheel stops working. At about the 9th second, the left side of the vehicle body comes into contact, and a large acceleration is applied to the left. Immediately after that, the car crashes into the guardrail in the oncoming lane, and a slight acceleration is applied to the right due to the recoil of the collision. Finally, it is possible to determine that a large acceleration is applied to the left even when the vehicle comes into contact with the guardrail and stops at about 10 seconds. By applying the respective accelerations in the front-rear direction and the left-right direction to specific calculation formulas, it is also possible to accurately analyze the orientation of the vehicle body when the accident vehicle collides. Thus, after the accident,
The acceleration sensor 6 measures the left and right acceleration, which makes it possible to determine how the driver operated the steering wheel after the accident.

FIG. 10 is a graph showing how the driver operated the steering wheel by measuring the number of revolutions of the tire before and after the occurrence of the accident. In this graph, the horizontal axis shows the passage of time from left to right, and shows the integration of the acceleration directed upward on the vertical axis. In the conventional measurement, since the tire speed is obtained only from the rotation speed of the tire, the speed cannot be obtained when the tire is locked after an accident. However, according to the vehicle operation management system of the present invention, the speed immediately before the collision can be obtained by integrating the acceleration. This graph shows the acceleration / deceleration state of the car from 9 seconds before the occurrence of the accident. The obstacle was found ahead 5 seconds before the occurrence of the accident, and the tires locked for 2 seconds after the brake was applied. At 30 km / h, the car crashed into a guardrail and the car stopped.
The travel distance d from the step on the brake to the collision, that is, how many meters before the collision the brake was applied is determined by the travel speed V
The determination can also be made based on the area of the black portion of the graph of (t) -t.

FIG. 11 is a block diagram showing a second embodiment of the vehicle operation management system using a mobile phone or other wireless communication means for communication with the management section equipment section.
In the first embodiment of the present invention, a configuration is described in which various signals and data detected by the in-vehicle device section A are communicated between the management section device sections B via the memory card 5. However, instead of reading the memory card 5 with the card reader / writer 16, the on-vehicle device unit A may be configured to detect the impact and speed generated during running or stopping of the vehicle by various signals and data. it can. The management section equipment section B for controlling signals and data from the on-board equipment section A is read by the management section equipment section B by, for example, MCA wireless communication.

In substantially the same manner as in the first embodiment of the present invention, the in-vehicle device unit A includes the acceleration sensor 21 and the traveling pulse signal receiving unit 2.
2, a display setting unit 24, and a main unit 25. The second embodiment of the invention is characterized in that the input to the main body 25 can be a bar code 27 in addition to the ten keys 26. Thus, by inputting the barcode 27, a large amount of various information can be set quickly.

From this in-vehicle device section A, a general mobile phone 2
8 and the like, it is also possible to configure so that various signals and data detected by the in-vehicle device unit A can be transmitted to and received from the management department device unit B. Also, by the packet communication 29,
It is also possible to transmit and receive the current position information, acceleration information, and other vehicle information of the automobile. In addition, mobile phone 2
It is also possible to use the speaker 8 to transmit the sound as normal sound from the speaker 30 connected to the in-vehicle device part A.

Thus, it becomes possible to communicate various signals and data between the on-board equipment section A and the management section equipment section B by wireless communication, and the management section can monitor the running status of the vehicle while driving in real time. Can be grasped. In addition, the transmitted various signals and data can be instantaneously analyzed, and for example, the occurrence of a traffic accident can be instantaneously detected, so that a notification to the police or an ambulance can be promptly made. Even in such a vehicle operation management system by wireless communication, in the management section equipment section B, various data are stored in the memory card 31 so that the driver's reckless driving can be grasped and a specific accident in a traffic accident can be recognized. Of course, analysis can be performed.

[0051]

The vehicle operation management system according to the present invention comprises:
With the above-described configuration, the on-vehicle device unit continuously detects the impact applied to the running vehicle itself, and records a signal generated according to the vehicle operating state and data on the driver and the vehicle. , The current speed, acceleration, or position of the vehicle during operation can be detected. These signals and various data are communicated between the in-vehicle equipment section and the management section equipment section by a memory card or wireless communication means, and analyzed by the management section equipment section, to grasp the reckless driving of the driver, Specific accident analysis can be performed.

The management section equipment section or the administrative equipment section can read and analyze various signals and data indicating the operation status of the vehicle in which the traffic accident has occurred. The recorded contents of various data may be changed during or after operation,
It cannot be tampered with, and if the recorded content has been tampered with, it can be easily found. In addition, when a memory card is erroneously inserted, a warning sound is generated to notify the driver that the vehicle cannot be driven when the operation management system does not start.

Further, the digital vehicle operation recording device according to the present invention uses an acceleration sensor incorporated in the device,
It measures acceleration based on the driver's operation in the front-rear direction and left-right direction during the operation of the car, and can record the measurement results in detail. The driving state of the vehicle can be grasped, which can be used for accident prevention.

In particular, since the acceleration in the left-right direction can be measured, in the event of an accident, the relationship between the acceleration state and the deceleration state based on the operation of the driver of the accident vehicle and the operation of the steering wheel can be understood at a glance. Since it is possible to know in detail what kind of driving was being performed, the effect obtained by implementing the present invention is extremely large, for example, the cause of the accident can be reliably estimated.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a first embodiment of a vehicle operation management system according to the present invention.

FIG. 2 is a block diagram showing an embodiment of the invention of a digital vehicle operation recording device serving as an in-vehicle device unit.

FIG. 3 is an explanatory diagram showing a digital vehicle operation recording device in which two longitudinal and lateral acceleration sensors are arranged.

FIG. 4 is a flowchart illustrating functions of a vehicle operation management system.

FIG. 5 is a graph in which changes in acceleration / deceleration in a traveling direction, acceleration / deceleration in a left / right direction, and a traveling speed that occur during traveling of a vehicle are recorded.
(B) shows acceleration / deceleration data in the advancing direction, (c) shows data on acceleration in the left-right direction by operating the steering wheel, and (d) shows data on the traveling speed.

FIG. 6 is a graph showing an example in which data obtained by the vehicle operation management system is graphed, in which individual data is graphed (a), individual data is graphed (b), and This is a list of the numerical values of all the drivers (c).

FIG. 7 is a simulation diagram illustrating a means for specifically analyzing a traffic accident model using the vehicle operation management system according to the present invention.

FIG. 8 is a graph showing acceleration / deceleration before and after the occurrence of an accident.

FIG. 9 is a graph showing how the driver operated the steering wheel by measuring left and right acceleration before and after the occurrence of the accident.

FIG. 10 is a graph showing how the driver operated the steering wheel by measuring the number of rotations of the tire before and after the occurrence of the accident.

FIG. 11 is a block diagram showing a second embodiment of the vehicle operation management system using a mobile phone or other wireless communication means to communicate with the management section equipment unit.

FIG. 12 is a plan view showing the entire chart paper of a conventional tachograph.

FIG. 13 is a main part plan view showing the entire chart paper of a conventional tachograph.

FIG. 14 is a flowchart showing a state in which the operation of a vehicle and the cause of an accident are identified using a conventional tachograph.

[Explanation of symbols]

 A In-vehicle equipment part B Management department equipment part C Administrative equipment part 1 Detecting part 2 Display setting part 3 Running pulse signal receiving part 4 Main part (CPU) 5 Memory card 6 Acceleration sensor 6x Acceleration sensor detector (fore and aft direction) 6y Acceleration Sensor detector (horizontal direction) 7 GPS receiving unit 8 Vehicle input signal 11 PC card for management 12 PC for management department 13 Control unit for management department 15 Shock detection unit 18 Administrative control unit 19 Administrative personal computer 21 Acceleration sensor 22 Running pulse Signal 23 Detection unit 24 Display setting unit 25 Main unit

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 3E038 AA07 BA09 BA12 BB04 CA05 CA06 CA07 CB05 CC01 DA03 DB01 EA02 FA03 GA02 HA05 9A001 BB06 CC05 JJ77 KK56 LL09

Claims (8)

[Claims] 1. An on-vehicle device unit for detecting a shock and a speed generated during running or stopping of a vehicle by signals, displaying these signals and various data relating to a driver and a vehicle, and recording the data. A vehicle operation management system comprising a management section device section for controlling signals and data of the vehicle, wherein the in-vehicle device section mainly records signals and data from an acceleration sensor on a memory card, and operates the vehicle in an operating state. The vehicle is characterized in that the operating conditions of the vehicle are recorded, stored, displayed and analyzed by reading the signals and various data in the management section equipment section with the memory card. Operation management system. 2. The vehicle operation management system according to claim 1, wherein the operation state of the vehicle is displayed and analyzed by reading the information on the administrative device unit via the memory card. 3. An in-vehicle device section for detecting impacts and speeds generated during running or stopping of a vehicle by signals and displaying and recording these signals and various data relating to a driver and a vehicle; A vehicle operation management system comprising a management section device section for controlling signals and data of the vehicle, wherein the in-vehicle apparatus section wirelessly communicates signals mainly detected from an acceleration sensor and data on current position information and vehicle status information. The vehicle operation management system is characterized in that the operation state of the vehicle is recorded, stored, displayed and analyzed by reading in the management section device section. 4. A detection unit that outputs a shock applied to the vehicle itself as a signal while the vehicle is running or stopped, a signal from the detection unit, and various data relating to the driver and the vehicle are displayed. A display setting unit for setting various conditions relating to operation, a main body unit having a function of recording, on a recording medium, a traveling pulse signal generated according to vehicle traveling and various vehicle signals generated according to the vehicle operating state as data, And a control unit for analyzing various signals and data recorded in the main body unit. 5. The digital vehicle according to claim 4, wherein the detection unit detects acceleration generated in the front-rear direction and the left-right direction of the vehicle traveling direction with an acceleration sensor, and outputs the detected acceleration as a signal. Operation recording device. 6. The digital vehicle operation recording device according to claim 4, wherein the main body unit records a signal from the detection unit and data on the various vehicles on a memory card. 7. The digital vehicle operation record according to claim 4, wherein the control unit is capable of capturing an impact signal from the detection unit, a traveling pulse, and a plurality of signals from a vehicle. apparatus. 8. The digital vehicle operation recording device according to claim 4, wherein the control unit is capable of reading the recorded contents of the main unit by a memory card.