JPH11259791A - Vehicle operation management system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle operation management system which automatically discriminates a reference pulse of a speed sensor. SOLUTION: In the vehicle operation management system where data from various sensors such as a speed sensor 9 is recorded with the time in an operation management meter 1 mounted on a vehicle 2, the number of reference pulses of the speed sensor 9 is determined based on the value of the distance on the operation management meter obtained by running the vehicle for a known distance with the number of reference pulses of the speed sensor 9 temporarily set, the value of this known distance, and this temporarily set number of reference pulses.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle operation management system for business vehicles such as trucks and taxis.

[0002]

2. Description of the Related Art For example, OA in the transportation industry extends not only in offices but also in vehicles such as trucks. In the trucking business, the vehicle is equipped with an operation control meter (also called an in-vehicle device), and the contents of the crew record, the mileage, etc.
For example, recording is automatically performed on a recording medium that is detachably attached to an operation control meter, and after returning to the office, the recorded contents of the recording medium are read by a computer in the office, and the computer performs predetermined arithmetic processing. Therefore, a vehicle operation management system for obtaining various forms has been introduced.

In the above-mentioned vehicle operation management system, the speed of a vehicle is recorded over time. This vehicle speed is a predetermined number of pulses which is proportional to the number of rotations of a speed sensor body of a speed sensor provided in the vehicle. It is determined by multiplying by a constant. In this case, it is necessary to know the number of pulses generated per rotation of the speed sensor main body (this is referred to as a reference pulse number). Conventionally, the determination of the reference pulse number has been performed by specifying a vehicle type by vehicle verification or the like and setting it according to the vehicle type.

[0004]

However, depending on the vehicle manufacturer, the reference pulse number may not be announced, and it is necessary to make advance preparations such as inquiring the manufacturer for each vehicle type, and to set the reference pulse number exclusively. Input device was required.

The present invention has been made in consideration of the above-mentioned matters, and an object of the present invention is to provide a vehicle operation management system capable of automatically determining a reference pulse of a speed sensor.

[0006]

In order to achieve the above object, according to the present invention, an operation management system mounted on a vehicle records data from various sensors such as a speed sensor with time. In the above, the number of distances in an operation control meter obtained when the vehicle is driven by a known distance in a state where the reference pulse number of the speed sensor is provisionally set, the known traveling distance number, and the provisionally set reference pulse The true reference pulse number of the speed sensor is determined on the basis of the number (claim 1).

In the vehicle operation management system having the above configuration, in the reference pulse setting mode, the number of reference pulses of the speed sensor is provisionally set, and the vehicle travels a known distance in that state. Then, the true reference pulse number of the speed sensor is determined from the number of distances obtained by the operation control meter by this traveling, the known traveling distance number, and the provisionally set reference pulse number.

Now, assuming that the provisional reference pulse number is 16, the distance over which the vehicle travels is a, and the distance obtained by the operation control meter is b, the true reference pulse number x is
It is given by the following equation. x = 16b / a

Therefore, the reference pulse of the speed sensor can be automatically determined, so that it is not necessary to check the reference pulse number for each vehicle type and to set the reference pulse number.

Further, instead of the traveling distance in the above configuration, the true reference pulse number of the speed sensor may be determined based on the speed of the vehicle. That is, in a vehicle operation management system in which data from various sensors such as a speed sensor is recorded with time in an operation management meter mounted on a vehicle, a known speed is set in a state where the reference pulse number of the speed sensor is temporarily set. The true reference pulse number of the speed sensor may be determined based on the speed in the operation control meter obtained when the vehicle is run with the known speed, and the provisionally set reference pulse number. (Claim 2).

[0011]

Embodiments of the present invention will be described with reference to the drawings. 1 to 3 show one embodiment of the present invention. First, in FIG. 1, reference numeral 1 denotes an operation control meter provided near a driver's seat of a truck 2 as a vehicle. As shown in FIG. 2, the operation control device 1 has a CPU
3, a ROM 4, a RAM 5, a clock circuit 6, a power supply circuit 7, an interface 8 and the like. Output signals from various sensors provided on the truck 2, such as a speed sensor 9 and an engine speed sensor 10, and a registration terminal The work item information input by the input means 11 is configured to be recorded over time on a memory card 12 as a recording medium detachably attached to the operation control device 1.

In FIG. 1, reference numeral 13 denotes a computer as an information processing apparatus,
4, an input keyboard 15, a display 16, a printer (not shown), and the like. Reference numeral 17 denotes a reading device connected to the computer main body 14 for reading the contents of the memory card 12 which is removably mounted on the reading device and sending it to the computer main body 14. These devices 1
3 and 17 are installed in, for example, an office of a transportation company. The configuration so far is no different from the conventional vehicle operation management system.

FIG. 3 shows a procedure for determining the reference pulse of the speed sensor 9 in the vehicle operation management system having the above configuration.
This will be described with reference to FIG.

First, the operation controller 1 mounted on the vehicle 2 starts a speed sensor reference pulse setting mode (step S1).

In the setting mode, the operation controller 1 temporarily sets the reference pulse number of the speed sensor 9. The reference pulse number includes 8, 10, 16, and 25, and is set to 16, for example (step S2).

Then, the vehicle 2 in the above state is moved to a known distance a.
Just run. By this traveling, in the operation controller 1, a traveling distance b based on the provisionally set reference pulse number 16 is obtained (step S3).

Here, assuming that the true reference pulse number of the speed sensor 9 is x, the true reference pulse number x, the actual traveling distance a, the traveling distance b in the operation control device 1, the provisional reference pulse number 16 has the following relationship (step S4). (Actual traveling distance a) / (temporary reference pulse number 16) = (travel distance b in operation control device 1) / (true reference pulse number x) (1)

Therefore, the true reference pulse number x is obtained by the following equation (x = 16b / a) (step S5).

Then, the true reference pulse number x obtained by the above equation (2) is set again in the operation control meter 1, and the travel distance b is corrected, thereby terminating the setting mode (step S6). .

As described above, according to the present invention, the reference pulse of the speed sensor 9 can be automatically determined, whereby the reference pulse number is checked for each vehicle type and the reference pulse number is set. Eliminates the need.

In the above-described embodiment, the travel distance of the vehicle 2 is used for setting the reference pulse of the speed sensor 9. Even if the vehicle 2 is caused to travel at a certain speed Va in the provisionally set state, and the speed Vb in the operation control meter 1 obtained at this time is obtained, the true reference pulse can be obtained similarly to the above-described embodiment. You can get the number.

[0022]

As described above, according to the present invention, the reference pulse number of the speed sensor can be automatically determined, and the reference pulse number determined by this determination can be automatically set. it can. Therefore, it is not necessary to investigate the reference pulse number for each vehicle type and set the reference pulse number.

[Brief description of the drawings]

FIG. 1 is a diagram schematically showing an example of a vehicle operation management system according to the present invention.

FIG. 2 is a diagram schematically showing an example of a configuration of an operation control meter in the system.

FIG. 3 is a flowchart for explaining the operation of the system.

[Explanation of symbols]

 Reference numeral 1 denotes an operation control meter, 2 denotes a vehicle, 9 denotes a speed sensor.

Claims (2)

[Claims] 1. A vehicle operation management system in which an operation control meter mounted on a vehicle records data from various sensors such as a speed sensor with time, wherein a reference pulse number of the speed sensor is temporarily set. Based on the number of distances in the operation control meter obtained when the vehicle travels a known distance, the known number of traveling distances, and the provisionally set reference pulse number, the true reference pulse number of the speed sensor A vehicle operation management system characterized by determining the following. 2. In a vehicle operation management system in which an operation control meter mounted on a vehicle records data from various sensors such as a speed sensor with time, a reference pulse number of the speed sensor is temporarily set. A true reference pulse number of the speed sensor is determined based on a speed in an operation control meter obtained when the vehicle is driven at a known speed, the known speed, and the provisionally set reference pulse number. A vehicle operation management system characterized in that: