JPS646548Y2 - - Google Patents

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Publication number
JPS646548Y2
JPS646548Y2 JP17869179U JP17869179U JPS646548Y2 JP S646548 Y2 JPS646548 Y2 JP S646548Y2 JP 17869179 U JP17869179 U JP 17869179U JP 17869179 U JP17869179 U JP 17869179U JP S646548 Y2 JPS646548 Y2 JP S646548Y2
Authority
JP
Japan
Prior art keywords
crt
brightness
central control
alarm
display
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
JP17869179U
Other languages
Japanese (ja)
Other versions
JPS5696484U (en
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP17869179U priority Critical patent/JPS646548Y2/ja
Publication of JPS5696484U publication Critical patent/JPS5696484U/ja
Application granted granted Critical
Publication of JPS646548Y2 publication Critical patent/JPS646548Y2/ja
Expired legal-status Critical Current

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Description

【考案の詳細な説明】 本考案はCRT表示装置に係る。[Detailed explanation of the idea] The present invention relates to a CRT display device.

計装システムにおいて、CRTによる表示は欠
くことのできないものになつているが、一般に長
時間連続表示のためCRTの耐用年月が短いとい
う欠点を持つている。このため情報量の少ないと
き、多くは正常にプロセスが活動しているときに
CRTの画面表示スイツチをOFFにすることが考
えられる。しかし表示スイツチをOFFするので
は映像を必要とするときに映像がデイスプレイ上
に表示されるのに時間がかかりすぎるという欠点
がある。
Although CRT displays have become indispensable in instrumentation systems, they generally have a disadvantage in that they have a short useful life due to their continuous display over long periods of time. For this reason, when the amount of information is small, often when the process is operating normally,
One possibility is to turn off the CRT's screen display switch. However, turning off the display switch has the disadvantage that it takes too much time for the image to be displayed on the display when it is needed.

また従来のCRT表示装置では、CRT画面の輝
度は外部調節端子によつてのみ調節可能なため、
作業者の手によらなければ輝度調節できなかつ
た。
In addition, in conventional CRT display devices, the brightness of the CRT screen can only be adjusted using an external adjustment terminal.
Brightness could not be adjusted without manual intervention by the operator.

本考案の目的はこれら従来の欠点を除去し、よ
りCRTを長寿命化して使用しかつ緊急時に作業
者に強く印象づけるCRT表示装置の提供にある。
The purpose of the present invention is to eliminate these conventional drawbacks, to provide a CRT display device that can be used with a longer CRT life, and that can make a strong impression on workers in an emergency.

本考案ではこの目的を達成するため、中央制御
装置からの警報出力信号によつてその輝度を変え
る輝度調節回路を備えることによつて行う。
The present invention achieves this objective by providing a brightness adjustment circuit that changes the brightness according to an alarm output signal from the central control unit.

以下本考案を一実施例について図を参照して説
明する。
Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

図は一実施例のブロツク図で、中央制御装置
(CPU)1はプロセスのプロセス量を受け設定値
を比較演算し操作出力を発しかつこのプロセス量
が所定の設定値を越えて異常値となつた際には警
報出力を出力する。さらに他の表示情報、制御情
報を出力する。このCPU1からの表示情報、カ
ラーコード、シフトコード、パターン情報等は
CRTコントローラ部2を介してCRT4画面上に
表示される。CRTコントロール部2は、CPU1
からの各種情報をCRT4に表示するために設け
られている。また警報出力は警報回路3に加わ
り、作業者の視覚・聴覚等に訴える手段により警
報を発する。5は輝度調節回路で外部調節端子6
によつてCRT4の輝度を可変する。そしてプロ
セスに異常がなき場合にはCRT4の輝度は下げ
られている。また警報回路3へ警報出力がCPU
より入力したときはこの入力によつて輝度調節回
路5はCRT4の輝度を上げる方向へCRT4の輝
度を調節する。
The figure is a block diagram of one embodiment, in which a central control unit (CPU) 1 receives the process amount of the process, compares and calculates the set value, and issues an operation output, and when the process amount exceeds the predetermined set value and becomes an abnormal value. When this occurs, an alarm output is output. Furthermore, other display information and control information are output. The display information, color code, shift code, pattern information, etc. from this CPU1 are
It is displayed on the CRT 4 screen via the CRT controller section 2. CRT control section 2 is CPU1
It is provided to display various information from the CRT4 on the CRT4. Further, the alarm output is added to the alarm circuit 3, and an alarm is issued by means that appeal to the visual and auditory senses of the worker. 5 is a brightness adjustment circuit and external adjustment terminal 6
The brightness of the CRT 4 is varied by. If there is no abnormality in the process, the brightness of the CRT 4 is lowered. Also, the alarm output to alarm circuit 3 is from the CPU.
When the input signal is input, the brightness adjustment circuit 5 adjusts the brightness of the CRT 4 in the direction of increasing the brightness of the CRT 4.

したがつてこの一実施例ではCPUから警報回
路に警報出力が加わつた際に輝度を下げていた状
態からCRT4の輝度を上げる。
Therefore, in this embodiment, when an alarm output is applied from the CPU to the alarm circuit, the luminance of the CRT 4 is increased from the lowered luminance state.

以上のように本考案は、中央制御装置からの警
報出力信号によつてCRTの輝度を変えているの
で、CRTの寿命を長くし、作業者の視覚に強く
緊急事態を訴えるという効果を有する。また電力
消費の低減にもつながる。
As described above, the present invention changes the brightness of the CRT according to the alarm output signal from the central control unit, so it has the effect of extending the life of the CRT and visually alerting workers to emergencies. It also leads to a reduction in power consumption.

また一実施例においては、輝度を下げた状態か
ら輝度を上げたがこれはCRTに表示されないほ
ど輝度を下げておいて上げてもよい。
Further, in one embodiment, the brightness is raised from a lowered brightness state, but the brightness may be lowered to such an extent that it is not displayed on the CRT and then raised.

【図面の簡単な説明】[Brief explanation of drawings]

図は本考案の一実施例のブロツク図である。 1……CPU、2……CRTコントローラ部、3
……警報回路、4……CRT、5……輝度調節回
路、6……外部調節端子。
The figure is a block diagram of one embodiment of the present invention. 1...CPU, 2...CRT controller section, 3
...Alarm circuit, 4...CRT, 5...Brightness adjustment circuit, 6...External adjustment terminal.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 中央制御装置からの表示情報をCRTに表示す
るCRT表示装置にあつて、前記CRTを通常低輝
度状態とし中央制御装置からの警報出力信号が入
力したとき、前記CRTの輝度を増加させる輝度
調節回路を備え、前記CRTの寿命を延ばして使
用することを特徴とするCRT表示装置。
In a CRT display device that displays display information from a central control device on a CRT, a brightness adjustment circuit that normally puts the CRT in a low brightness state and increases the brightness of the CRT when an alarm output signal from the central control device is input. A CRT display device, characterized in that the CRT is used while extending its life.
JP17869179U 1979-12-25 1979-12-25 Expired JPS646548Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17869179U JPS646548Y2 (en) 1979-12-25 1979-12-25

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17869179U JPS646548Y2 (en) 1979-12-25 1979-12-25

Publications (2)

Publication Number Publication Date
JPS5696484U JPS5696484U (en) 1981-07-30
JPS646548Y2 true JPS646548Y2 (en) 1989-02-20

Family

ID=29689217

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17869179U Expired JPS646548Y2 (en) 1979-12-25 1979-12-25

Country Status (1)

Country Link
JP (1) JPS646548Y2 (en)

Also Published As

Publication number Publication date
JPS5696484U (en) 1981-07-30

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