JPH01277998A - Monitoring device - Google Patents

Abstract

PURPOSE:To prevent a CRT from being burnt due to the long unvaried state of its display contents by providing the title monitoring device with a timer to automatically clear a display picture. CONSTITUTION:When a monitor does not operate a keyboard 4 within a set time, a timer 7 generates timer information 9. A keyboard interface part 3 converts the timer information 9 into a picture clear signal and sends the converted signal to a central processing part 5. The processing part 5 instructs clear operation to a CRT control part 2 to clear the screen of a CRT display part 1. Since the display picture is cleared when the operator does not operate the keyboard 4 for a fixed period in said constitution, the CRT can be prevented from shortening its life due to the long unvaried state of its display contents.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a monitoring device, and more particularly to a monitoring device having a CRT display section used in computer systems and the like.

2. Description of the Related Art Conventionally, as shown in FIG. 2, this type of monitoring device has a screen table in the center for displaying information inputted from an external connection device via an external interface section 25 to a central processing section 24. It is updated in the processing section 24 and sent to the CRT control section 21 as display screen table information.

The CRT 'Itll m section 21 converts the display screen table information sent from the central processing section 24 into display information 26.
and sends it to the CR1 display section 20.

The contents of the display information 26 are displayed on the CR1 display section 20,
It becomes possible to monitor the status of computer systems, etc.

Further, the central processing unit 24 is provided with a plurality of display screen tables, and the user can select the display screen table that he or she wishes to display using the keyboard 23.

Problems to be Solved by the Invention However, the conventional monitoring device described above does not display CR unless the monitor performs a screen switching operation from the keyboard.
Since the display contents of the T display section (for example, the configuration screen of a computer system) do not change for a long period of time, the CR1 screen is burnt out and the life of the CRT display section is shortened.

The present invention has been made in order to eliminate the above-mentioned drawbacks inherent in the conventional technology. Therefore, an object of the present invention is to protect the CRT screen when the display contents of the CRT display section do not change for a long period of time, and to protect the CRT display. An object of the present invention is to provide a new monitoring device that makes it possible to extend the service life of a component.

Means for Solving the Problems In order to achieve the above object, the monitoring device according to the present invention uses C
The device includes an RT display section, a keyboard interface section, a keyboard, a central processing section, an external interface, and a timer section for automatically clearing the display screen.

Embodiment Next, a preferred embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing one embodiment of the present invention.

Referring to FIG. 1, the central processing unit 5
updates the display screen table and sends it to the CRT control section 2 as display screen table information.

The CRT control unit 2 converts the display screen table information sent from the central processing unit 5 into display information 8 and displays it in CR1.
It is sent to the display section 1.

The contents of the display information 8 are displayed on the CR1 display unit 1, and the status of the computer system etc. can be monitored.

Further, the central processing unit 5 is provided with a plurality of display screen tables, which the observer can freely select by operating the keyboard 4.

On the other hand, when the observer does not operate the keyboard 4 within an arbitrarily set time, the timer section 7 sends a signal for clearing the display screen to the keyboard interface section 3 as timer information 9.

The keyboard interface section 3 converts the timer information 9 into a screen clear signal and sends it to the central processing section 5.

The central processing section 5 instructs the CRT control section 2 to clear the screen, and the screen of the CR1 display section 1 is cleared. In other words, if the monitor does not operate the keyboard 4 of the monitoring device for a certain period of time, the display screen will be in a cleared state.

As described in detail, according to the present invention, when the monitor does not operate the keyboard of the monitoring device for a certain period of time, the display screen of the CRT display section is cleared.
It is possible to eliminate the disadvantage that the CRT screen burns out when the display contents of the display section do not change for a long period of time, shortening the life of the CRT display section.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing one embodiment of the present invention, and FIG.
The figure is a block diagram of the prior art. 1. CRT display section, 2. ,,CRT control unit, 343
．． Keyboard interface section, 411. keyboard,
5. ,,Central processing unit,e,,,External interface unit,
7.1. Timer section, 8109 display information, 9. . , timer information, 20. ,,CRT display unit, 21. ,,C
RT control unit, 22. ,,keyboard interface section,
23. . , keyboard, 24. , , central processing section, 25. ,, External interface section, 2G,... Display tN\la Fig. 1

Claims (1)

[Claims] 1. A monitoring device comprising a CRT display section, a CRT control section, a keyboard interface section, a keyboard, a central processing section, and an external interface section, the monitoring device comprising a timer section for automatically clearing a display screen.