JPS5890254A - Terminal device - Google Patents

Abstract

PURPOSE:To improve the reliability of a terminal device, by counting the using time, the working frequencies, etc. of the expendable parts such as a CRT, a rubber roller, etc. and delivering these count values to a center with a command of the center to recognize accurately the lifetime of the expendable parts when necessary and then to exchange them. CONSTITUTION:A display device 6 is connected to a center 1 containing an electronic computer, etc. to be used as a terminal device. Then a control part 7 through which the data is tansferred between the center 6 and the device 6 is provided to the device 6 along with a cathode-ray tube 4 and an electric power supply part 5. A counter 8 is set between the device 6 and the part 5 to count the using time of the tube 4, and this count value is informed when necessary to the center 1 from the part 7 by a command given from the center 1. Then the using time of the expendable parts lincuding the tube 4, a rubber roller, etc. which are used at the device 6 is informed to the center 1. Thus the lifetime of the expandable parts is accurately recognized, and the reliability is improved for a terminal device.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a terminal device that is connected to a center such as an electronic computer to input and output data, and has consumable parts such as a cathode ray tube or a rubber roller inside the device.

For convenience of explanation, a display device will be used as an example.

In the diagram shown in Fig. 1 as a conventional device, (l) is the center of the computer, [2] is the center (1)
(3) is a control unit that controls data input/output or display; (4) is a consumable part that is a cathode ray tube that displays characters, figures, etc.; 5) is the control unit or cathode ray tube (4)
This is the power supply unit that supplies power to the

The cathode ray tube (4) is a consumable part, and if used for more than a certain period of time, the phosphor screen will deteriorate and problems such as the 9 display becoming dark will occur, so it must be replaced.

However, since the conventional device 4 is configured as described above, there is no way to know how long the cathode ray tube (4) has been used, and whether or not it needs to be replaced can be determined by checking each device one by one or by checking the number of days it has been used. The only way to do this was to estimate the time.

Generally, terminal devices such as display devices.

Due to the large number of installed units, the wide range of installation locations, and the fact that the usage time varies greatly depending on the installation location,
With the conventional device, it is difficult to accurately know how long the cathode ray tube (4) has been used and to replace it efficiently.

There is also a method of using two energization times for the usage time, but even in this case, it is necessary to check the time measured for each device, which requires a lot of effort.

This invention was made in order to eliminate the drawbacks of the conventional products as described in 2.For example, a counter for measuring the usage time of consumable parts such as a cathode ray tube, and a counter for measuring the usage time of consumable parts such as a cathode ray tube, It is an object of the present invention to provide a device k that can accurately know the usage time of consumable parts and efficiently replace consumable parts by having a function of outputting the value of a counter to a center.

An embodiment of the present invention will be described below with reference to the drawings.

In Figure 2, +1] is the center of a computer, etc., (
4) is a cathode ray tube, (5) is a γ+'L source section, (6) is a display device according to the present invention, (7) is a 1111 unit for controlling data input/output or display, and (8) is a cathode ray tube ( 4) is a counter that measures the usage time.

In the above configuration, the usage time of the cathode ray tube (4) is continuously counted by the counter (8).

If necessary, when a command is issued from the center +1), the control unit (7) reads the count value of the counter (8) and sends a command to the center (1).
].

In the above embodiment, a display device was used as an example, but other terminal devices may also be used.Although a cathode ray tube is used as a consumable part, other displays and mechanical consumable parts such as rubber rollers and clutches may also be used. good.

Furthermore, although we have decided to divide the usage time as a basis for replacement, if the number of operations is the basis for the lifespan, it may be configured to count the number of operations. It may be configured as follows.

Further, although the case where there is one consumable part has been described, it is also possible to have two or more consumable parts.

As described above, according to the present invention, the device 1 is configured to have a counter that counts the usage time or number of operations of consumable parts, and a function to output this counted value to the center in response to a command from the center. It is possible to accurately know the lifespan of consumable parts when necessary without inspecting each machine, and to replace them efficiently.

[Brief explanation of the drawing]

FIG. 1 is a system configuration diagram using a conventional display device, and FIG. 2 is a system configuration diagram using a display device according to the present invention. In the figure, Lυ is the center, (2) kJ: conventional display device, (3) is the control unit, (4) is the cathode ray tube,
(5) is a power supply unit, (6) is a display device according to the present invention, (7) is a control unit, and (8) is a counter. Agent Shin Kuzuno - Figure 1

Claims (1)

[Claims] A terminal device comprising a counter that counts the usage time or number of operations of a consumable part, and a control section that has a function of outputting the value of the counter to the center according to a command from the center.