JPS584493A - Operation memory - 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 The present invention relates to trip memory devices, and more particularly to automatics.

As is well known, in order to ensure the safe operation of trucks, dump trucks, etc., it is mandatory to record and report the operating conditions.Such recording is done using tachographs mounted on each vehicle. ing.

A tachograph rotates at a constant speed (usually 1 rotation/24 hours)
The speed and distance traveled are recorded on a circular recording paper.

It automatically and sequentially records engine speed, etc.

Transport companies that operate a large number of trucks read tachograph records, eliminate any traps, pay wages to drivers, manage speeds, report to the Ministry of Transport, and ensure proper driving. They were checking to see if the information was correct.

However, the intricately curved lines recorded on the recording paper must be viewed with a magnifying bell to read the data and create daily reports and schedules.

This required a great deal of labor, placed a heavy burden on shipping companies, etc., and caused many problems, including low reading accuracy and the tendency for reading errors to occur.

It is an object of the present invention to solve the above-mentioned conventional problems, to be able to accurately memorize the operating status of a vehicle sequentially, and to extremely easily and quickly create various materials and report documents such as daily reports and schedules from the stored data. It is an object of the present invention to provide a vehicle operation storage device that can be used to store vehicle operations.

Hereinafter, the present invention will be explained in detail using Examples.

FIG. 1 is a system diagram for explaining the present invention in detail.

The rotational speeds of the wheels and engine of the automobile are detected by a wheel rotational speed sensor 1 and an engine rotational speed sensor 2, respectively, and stored in a memory 4 via an OPU (central processing unit) 3.

In many cases, the signal from engine speed sensor 2 is
It is stored in the memory 4 as the engine rotation speed via the CPU 3, but the signal from the wheel rotation speed sensor 1 is 0P.
The data is processed by U3, converted into speed and distance traveled, and stored in memory 4. In this case, it goes without saying that not only the speed at a predetermined time, but also the average speed, maximum speed, etc. within a predetermined time can be similarly determined and stored.

The above calculations and storage in the memory 4 by the 0PU5 are performed based on the time indicated by the clock 5, and the speed, mileage, and engine rotational speed are recorded at predetermined intervals along with the date and time of the measurement. Memory 4IC is stored.

That is, according to the present invention, the date and time, speed, mileage, and engine rotational speed are sequentially stored in memory in chronological order at predetermined time or predetermined speed intervals.

Once the truck has completed its scheduled work and returned to the office,
The data stored in memory regarding the above date and time, speed, mileage, and engine rotation speed are transferred from memory to a computer, and various reports and documents such as daily reports and schedules are processed.
Manufactured according to purpose.

It goes without saying that the transfer of data to such a computer and the creation of reports and documents using the computer are extremely quick and accurate, and when using a tachograph, the amount of labor required is reduced. is completely unnecessary, and there is no risk of reading errors. Various methods are possible for data transfer from memory to computer.

For example, as shown in FIG.
3, and after transferring the data stored in the memory 4 to tape, input it to a computer, and use the computer to create the above-mentioned reports and materials.

Alternatively, the computer may be connected to the CPU 5 and the output circuit 6 via the output terminal 7, and the data in the memory 6 may be input directly to the computer; in practical terms, this method is the quickest and most convenient. .

Alternatively, the data can be transferred by making the memory 4 removable and pulling it out and inserting it into the computer when you return to work.

In the present invention, conventional sensors can be used as they are for detecting the rotational speed of the wheels and the engine.

(3Pt), memory, clock and output circuit:
An integrated semiconductor device or a crystal oscillator can be used. Therefore, it is not only extremely inexpensive, but since there are no moving parts, it is resistant to vibration and has almost no risk of failure.

The memory trap described above can use various types of semiconductor memory, but the number of data that can be stored is determined by its storage capacity.

For example, if you use 32 16 kilobit RAMs (Runtime Access Memory), the date and time, speed, mileage, and engine revolutions will be detected every 10 seconds or 5 seconds, and the operating status for one day will be easily memorized. be able to.

If the vehicle is in operation for a very long time and it is not possible to store all the data in memory, a small tape recorder may be mounted on the vehicle and connected as shown in Figure 1 to record data every 24 hours, for example. The data in the memory 4 may be transferred to a tape (transferred).In this way, even if the vehicle is in operation for an extremely long period of time, the state of the vehicle during operation can be stored without any problem.

For convenience, the above explanation uses two types of sensors that detect the rotational speed of the wheels and the engine.
An example in which mileage and engine rotational speed are stored was tested.

However, the present invention is not limited to such cases, and it goes without saying that some of these items can be omitted or other items (eg, engine temperature, exhaust gas condition, etc.) can be added.

For example, not increasing the engine speed more than necessary is extremely important for reducing fuel consumption, and it is required from an economical standpoint to maintain an appropriate gear ratio and engine speed.

However, engine speed, like speed and mileage,
Some companies do not manage the engine speed because it is not directly related to laws and regulations or wage payments. good.

As is clear from the above description, the present invention has many features as described below.

(1) Unlike conventional tachographs, there are no moving parts such as pens, so it is resistant to vibration and there is no risk of failure.

(2) Data processing is extremely quick, and labor costs can be greatly reduced.

(3) High reliability with no risk of reading stains.

(4) Since it is formed using a semiconductor device, it is inexpensive, and the price is expected to decrease further in the future.

[Brief explanation of the drawing]

FIG. 1 is a system diagram showing one embodiment of the present invention. 1: Wheel rotation speed sensor, 2: Engine rotation speed sensor, 5: CPU, 4: Memory, 5: Clock. 6: Output circuit, 7: Output terminal, 8: Tape recorder.

Claims (1)

[Claims] The central processing unit is equipped with at least a central processing unit, a memory, and a clock, and the central processing unit calculates and processes signals from a sensor that detects the rotation speed of the vehicle's wheels and/or the engine, respectively, and calculates the speed, mileage, and/or engine of the vehicle. An operation storage device that calculates the number of revolutions and sequentially stores the rotation speed in the memory in chronological order along with the date and time indicated by the clock.