JP2769542B2 - Safe operation management device - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a safe operation management device.

[Conventional technology]

Safe operation management is the most important issue in companies that operate vehicles, such as freight transportation companies, passenger transportation companies, driving schools, and the like. 2. Description of the Related Art A tachograph is conventionally known as a device for managing the operation of a vehicle. The tachograph has a velocity axis in the radial direction of the disk-shaped recording paper and a time axis in the circumferential direction, and makes one revolution in 24 hours, for example. Since the speed corresponding to the time is recorded on the recording paper, 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.

However, in the tachograph record, Iruma reads the data,
Since it is limited to those that can be judged, most are used for labor management of the driver, and it is almost impossible to know the state of the running vehicle. Therefore, when an accident occurs, the data is finely read using a microscope in order to know the state of the vehicle and the driver's operation status immediately before the accident,
It is necessary to perform a calculation operation based on the data to obtain detailed data, for example, acceleration, and to determine whether or not a braking operation has been performed. The operation using the microscope also has a problem that if the resolution of the tachograph is low, it cannot be regarded as accurate data. For this reason, for example, an accelerometer may be attached to record a change in acceleration (rapid braking, sudden starting) applied to the vehicle. However, equipment costs increase due to the provision of the accelerometer and the recording device, and there is a problem of uneconomic. . In addition, there is a problem that time matching with the tachograph is necessary and adjustment is difficult.

Japanese Patent Application Laid-Open No. Sho 62-144295 discloses a driving data recording apparatus which is provided with an operation unit which is mounted on a vehicle and detects a traveling speed of the vehicle, has a clock function, and performs an operation process of management data. A writing unit for writing management data obtained by a calculation unit of the operation data recording device to an external storage unit or a data communication unit for performing data communication; and the external storage unit or communication means provided on the manager side There is proposed a vehicle operation management system including a management data processing device for processing data input through the system.

According to this, further, based on the vehicle speed data input from the detection unit, a safety speed determination unit that determines whether or not the vehicle speed data exceeds a preset reference value, and a safety speed determination unit input from the detection unit. A rough operation determining means for calculating a change rate by speed change rate calculating means based on the obtained vehicle speed data and determining whether or not the obtained change rate exceeds a preset reference value; Operation evaluation means for performing an operation evaluation is provided based on the operation evaluation means.

According to the vehicle operation management system disclosed in Japanese Patent Application Laid-Open No. 62-144295, the fact (number of times and distance) that the vehicle has run at a speed higher than the management level is recorded, and the fact (number of times) is determined when the vehicle is quickly started and suddenly stopped. According to the report, it is possible to objectively grasp the driving of the driver and to encourage safe driving and prevent rough driving.

[Problems to be solved by the invention]

However, in the vehicle operation management system disclosed in Japanese Patent Application Laid-Open No. 62-144295, the obtained management data is stored in an external storage such as an IC card or a management data processing provided on the management side such as a management office by data communication means. Since the evaluation processing is performed by appropriately reading the data, the driving attitude is not corrected on the spot.

The object of the present invention is to solve the inconvenience of the conventional example, and to make it possible for a running driver to recognize whether or not the driving mode is safe, or whether or not a safe operation is currently being performed during driving,
If safe operation is not currently in progress, it is possible to alert the driver on the spot and modify the driving attitude, and even after the operation is completed, this can be analyzed and used as safety management data, It is another object of the present invention to provide a safe operation management device having a small number of members and good usability.

[Means for solving the problem]

In order to achieve the above object, the present invention includes a sensing unit for detecting operation data such as speed of a vehicle, a control unit also serving as a search unit, a storage unit, and a calculation unit, and according to a driving mode of the vehicle. A vehicle is provided with a determination means for determining the degree of safety operation by converting the degree of safety traffic into a score and comparing it with a reference point stored in advance, and at least a display means for displaying the determination result and a predetermined value of the determination result. Alarm means for notifying the driver while driving less than
An operation recording unit provided in a driver's seat, and having a memory and a display as a means for displaying the degree of the safe operation as a unit that can be connected to and detached from the control unit via a connector. The operation control room was provided with a computer which can be connected to the operation recording unit, reads out the contents stored in the memory of the operation recording unit, analyzes the operation contents of the vehicle, and prints out the analysis result in a predetermined format to a printer. The gist is that.

More specifically, according to the present invention, the judging means for scoring the degree of safe operation in accordance with the driving mode of the vehicle and comparing the score with a reference point stored in advance to determine the degree of safe operation includes: First storage means for storing in advance each reference point assigned to each operation mode in order to score the degree of safe operation according to the operation mode of the vehicle, and a change in acceleration of the vehicle based on operation data. No.1 to get service information
Calculating means for obtaining operation information such as a change in the acceleration of the vehicle based on the operation data; detecting the current operation mode of the vehicle based on the operation data and / or the operation information; Search means for searching the first storage means for a reference point corresponding to the aspect, and accumulating the reference points sent from the search means or accumulating them from predetermined points to determine the degree of the current safe operation. It comprises a second calculating means for obtaining a score to be indicated, and a second storage means for storing at least a change with time of the score indicating the degree of safe operation.

The display means for displaying the determination result is for displaying at least a point indicating the current degree of safe operation obtained by the second arithmetic means, and the alarm means is for displaying a point on the LCD display. Also, a message for safe operation, for example, a message of "risk of sudden start" is displayed together with a warning sound and / or a warning sound from a speaker.

[Action]

According to the present invention, whether or not the current vehicle operation mode is safe can be easily known from the operation data and / or operation information by reading the display means indicating the amount of change in the score indicating the degree of safe operation. . In addition, the point indicating the current degree of safe operation is displayed on the display means, so that the driver can immediately know whether or not safe driving has been performed since the start of the operation. Moreover, the display means for displaying the determination result and the alarm means for notifying the driver of a result smaller than a predetermined value to the driver while driving are provided in the driver's seat of the vehicle, and the driver himself / herself during driving is provided. Shows the number of deductions, and by making the driving attitude correct on the spot, safe driving can be ensured.

Further, the operation recording unit as a medium means for connecting the computer to the judgment means and the operation control room of the company can use the display as the display means for the score display and the alarm display.

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 shows a safe operation management system using the safe operation management device 10 of the present embodiment.

Reference numerals 12, 14, and 16 denote sensors serving as sensing means.The speed sensor 12 detects the speed of the vehicle, which is operation data, and the brake sensor 14, which detects the presence or absence of a brake operation, which is operation data. Other sensors 16 for detecting operation data, such as a sensor for detecting operation data, are provided.

In the present embodiment, a description will be given of, for example, safe operation management using the speed sensor 12 and the brake sensor 14.

Reference numeral 18 denotes a control unit (hereinafter, referred to as CU) also serving as a search unit, which controls the operation of the safe operation management device 10 according to a basic program stored in the ROM 20. 22 is the first
A memory card (hereinafter, referred to as MC) is a storage means for storing reference points for deducting points from predetermined points for each operating state of the vehicle. That is, the point is reduced each time a dangerous operation is performed, and the degree of safe operation of the driver is indicated by a score. Table 1 shows an example of the contents stored in the MC 20.

In addition, when unnecessary acceleration is performed to stop immediately, the operation mode is subdivided, such as -10, and a reference point for deduction is predetermined. The reference points according to these operation modes are not necessarily
It is not necessary to store the data in the MC 22, and the ROM 20 may be stored as the first storage means if the ROM 20 easily has room.

A RAM 24 temporarily stores the operation data, operation information, current score, and the like. Numeral 26 denotes an arithmetic unit (hereinafter, referred to as ALU) serving as first and second arithmetic means. The arithmetic unit 26 calculates an acceleration as operation information from a change in the speed of the vehicle detected by the speed sensor 12, for example. Although the ALU 26 will be described in detail, the CU 18 detects the current vehicle operation mode from the operation data and / or operation information and searches the MC 22 for a deduction reference point corresponding to the current vehicle operation mode. Then, integration is performed in which the reference point is decremented from the driver's current score. Note that two ALUs 26 may be provided as the first and second arithmetic means.

Reference numeral 28 denotes a key switch as an input means, which is capable of inputting commands and data to the CPU 18 from outside. An operation recording unit 30 is connected to the CPU 18 via the connector 32,
Removal is possible.

The operation recording unit 30 is provided with a memory 34 as a second storage means. As the memory 34, a storage device such as a large-capacity RAM or a memory card is used. The memory 12, sensors 12, 1
The operation data detected at 4 and 16, the operation information calculated and processed by the ALU 26, the current score calculated by the ALU 26, and the like are economically stored.

The operation recording unit 30 has an LCD display 3 as a display means.
In addition to displaying the current score obtained by the ALU 26, a message for safe operation, for example, a message of "risk of sudden start" is provided together with an alarm sound and / or an alarm sound from the speaker 38. It is also possible to display. Also, when the current score falls below a predetermined value determined as a safe operation range, a warning sound and / or a warning sound is output from the speaker 38. The driving recording unit 30 is provided in the driver's seat so that the driver can see the display 36 and hear the sound from the speaker 39. The speaker 38 is a driving recording unit.
It is not necessary to provide them at 30, but they may be provided separately and independently.

Reference numeral 40 denotes an analysis system, for example, a computer system installed in an operation management room of a transportation company. It is possible to connect to the operation recording unit 30 of the vehicle whose operation has been completed,
The analysis unit 44 controlled by the computer 42 reads the contents stored in the memory 34 of the operation recording unit 30 and analyzes the operation contents of the vehicle in accordance with the instruction of the computer 42. The analysis result is printed out to the printer 46 in a predetermined format.

Next, an example of the operation of the safety operation management device 10 thus configured will be described with reference to the flowchart of FIG.

The driver connects the operation recording unit 30 to the CU 18 via the connector 32 before the operation starts. Then, the key switch 28 is operated to start (step 100).

When the safe operation management device 10 starts, the contents of the RAM 24 and the memory 34 are cleared (step 102).

The driver gets the first score from Keyswitch 28 (eg 500 points)
Is input into the memory 34 and the RAM 24, and 500 is displayed on the display 36 (step 104). Here, the method of inputting the initial point by the driver is adopted.
The initial score may be automatically set and stored at the time of the initial setting of 102.

When the operation is started, the operation data of the vehicle speed is continuously output from the speed sensor 12, and the operation data indicating the use of the brake at each brake operation is output from the brake sensor 14.
It is sent to the CU 18 (step 106). This operation data is GU1
8 is sent to the memory 34 in real time.
It is stored momentarily together with the time data output from the clock of U18 (step 108).

When the CU 18 monitors the speed data and, for example, suddenly depresses the brake, and the speed changes within a specific time t (eg, 0.5 seconds), the acceleration g is calculated by the ALU 26 ( Step 110). At this time, assuming that the speed before the change is VO and the speed after the change is VE, g = (VO−VE) / t.

The obtained g is stored in the memory 34 together with the operation data of the brake operation as operation information (step 11).
2). The values of g, VO, and VE are also temporarily stored in the RAM 24. Then, the CU 18 searches the data in the MC 22 for a deduction point corresponding to the acceleration g temporarily stored in the RAM 24 (step 114). If g stored in the RAM 24 is -0.3 and VO is 40 km / h, the reference point for deduction is determined to be -20 (see Table 1).

The CU 18 temporarily stores the value of −20 in the RAM 24, and
Command dark spot calculation to 26 (step 116). At this time, the above-mentioned message can be issued on the display 36. AL
U26 calculates 500−20 = 480 and temporarily stores it in RAM 24 as the current score. CU13 RAM current point 480 after deduction
24 and store it in the memory 34 (step 11
8). Then, the current score 480 is displayed on the display 36 (step 120).

Next, CU18 is set in advance to R0M20 (or may be MC22),
It is compared whether or not the stored points are more than the points (eg, 200 points) serving as a borderline indicating whether or not the stored operation is within the low money range (step 122). If the current score is greater than 200, the process returns to step 106, and the CU 18 monitors operation data and the like until the next deduction operation. On the other hand, the current score is 200 until step 122
If the score is less than the point, the CPU 18 issues an alarm sound and / or an alarm sound from the speaker 38 to suggest a safe operation to the driver (step 124). Further, the CU 18 checks whether or not the current score is zero (step 126). If not, the process returns to step 106. If the current score is zero, the operation is stopped and the memory 34 is stopped.
Is maintained (step 128).

When the operation is completed, the driver manually operates the key switch 28 to end the operation, removes the operation recording unit 30 from the vehicle, and submits the operation recording unit 30 to the operation manager. The operation recording unit 30 is provided with a backup battery (not shown) for the memory.

The operation manager stores the operation record unit 30 in the analysis unit of the analysis system 40.
It connects to 44 and instructs via the computer 42 to start the analysis. The analysis unit 44 reads out the contents of the memory 34 and analyzes the operation data, the operation information, and the change of the score over time. Then, the result is output from the printer 46. The output from the printer 46 can be used as safety management data because the operation status of each driver is recorded in detail as well as the content stored in the conventional tachograph.

In the above-described embodiment, the point is determined by determining the rapid acceleration and the rapid deceleration by obtaining the acceleration.However, when transporting a human such as a taxi or a bus, there is a problem of discomfort due to driving, the rapid acceleration, It is necessary to judge sudden deceleration in relation to riding comfort. In such a case, the calculation of the above g may be determined by the following conversion formula as the perceived acceleration g '.

g ′ = (VO−VB) · G / VE (where G is the gravitational acceleration and
When VE = 0, VE is an approximate value of 0).

Here, if (VO−VB) / VE = α, then 8 ′ = α ·
G. However, α differs depending on the type of vehicle, etc.
Is derived from a relational expression including VO and VE, and the following expression is obtained.

alpha = log ₁₀ [(V0 / VE) / VE] and, α = (V0 / VE) / log and _{10 · VE, α = log 10} (V0 / VE) / VE and, α = (V0 / VE) / (L / VE) l ^VE ‥ l is the base of natural logarithm. This makes it possible to determine the degree of comfort.

Although the acceleration of the vehicle has been described so far, it is also possible to detect a wavy operation in which the speed changes several times in a certain period of time based on the speed data and set the target as a point for deduction.

Alternatively, the vehicle distance may be measured with a radar, and points may be deducted when the inter-vehicle distance falls below a predetermined distance. At that time, the judgment that the inter-vehicle distance is abnormal is made by a signal other than radar, for example, when the inter-vehicle distance becomes shorter, the relationship between speed data and time becomes sawtooth-like, and a signal indicating this sawtooth-like speed is present. When the output pattern is detected, it is possible to determine the inter-vehicle distance abnormality. Further, the number of times the brake is used is measured within a certain distance by the brake sensor 14, and if the frequency of use of the brake is high, it can be set as a deduction target.

In addition, it is possible to perform more detailed safe operation management for each operation management in combination with data from a door switch, a boarding switch, an actual vehicle / empty vehicle identification switch, a sensor for identifying the presence or absence of a side brake, and the like.

Various preferred embodiments of the present invention have been described above. However, the present invention is not limited to the above-described embodiments, and the calculation of the score may be performed by an accumulative addition formula. Of course, many modifications can be made.

〔The invention's effect〕

As described above, the safe operation management device of the present invention allows a driver during operation to recognize whether or not the driving mode is safe or whether or not a safe operation is currently being performed during driving, and If you are not currently doing, it is possible to alert you on the spot and change your driving attitude,
Further, even after the operation is completed, this can be analyzed and used as safety management data, and there is no need to provide a separate indicator, so that the number of members is small and the usability is good.

[Brief description of the drawings]

FIG. 1 is a block diagram of a safe operation management system using a safe operation management device according to the present invention, and FIG. 2 is a flowchart showing an example of an operation of the safe operation management device of the present invention. 10… Operation management device, 12, 14, 16… Sensor, 18… Control unit, 22… Memory card, 26… Calculation unit, 34… Memory, 36… Display

Claims (1)

(57) [Claims] 1. A vehicle comprising: a sensing unit for detecting operation data such as speed of a vehicle; a control unit also serving as a search unit; a storage unit; and a calculation unit.
A vehicle is provided with a determination means for determining the degree of safety operation by converting the degree of safety traffic into a score and comparing it with a reference point stored in advance, and at least a display means for displaying the determination result and a predetermined value of the determination result. An alarm means for notifying the driver during driving is provided at the driver's seat of the vehicle, and a memory and a degree of the safe operation are set as those which can be connected to and detached from the control unit via a connector. An operation recording unit having a display as display means is provided, and furthermore, the operation management room of the company can be connected to the operation recording unit, reads out the storage contents in the memory of the operation recording unit, and analyzes the operation contents of the vehicle. And a computer which prints out the analysis result in a predetermined format to a printer.