JPS6027046B2 - Power control method - Google Patents
Power control methodInfo
- Publication number
- JPS6027046B2 JPS6027046B2 JP53069496A JP6949678A JPS6027046B2 JP S6027046 B2 JPS6027046 B2 JP S6027046B2 JP 53069496 A JP53069496 A JP 53069496A JP 6949678 A JP6949678 A JP 6949678A JP S6027046 B2 JPS6027046 B2 JP S6027046B2
- Authority
- JP
- Japan
- Prior art keywords
- power
- terminal
- control device
- terminal device
- circuit
- 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
Links
Landscapes
- Power Sources (AREA)
- Direct Current Feeding And Distribution (AREA)
Description
【発明の詳細な説明】
本発明は電源制御方式、詳しくは、制御装置と該制御装
置により制御される複数台の端末装置から構成されるシ
ステムにおける端末装置の愛源を制御する方式に関する
ものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a power supply control method, and more particularly, to a method for controlling the power source of a terminal device in a system consisting of a control device and a plurality of terminal devices controlled by the control device. be.
第１図は本発明で対象とするシステム構成の一例であり
、１は中央処理装置、２は端末制御袋贋（以下、制御装
置を略称す）、３ａ，３ｂ，・・・３ｎは端末装置を示
す。FIG. 1 shows an example of a system configuration targeted by the present invention, where 1 is a central processing unit, 2 is a terminal control device (hereinafter referred to as a control device), and 3a, 3b, . . . , 3n are terminal devices. shows.
処理装置１と制御装置２は通信回線４で接続されている
。制御装置２と各端末装置３ａ〜３ｎもそれぞれインタ
フェース信号線５で接続されるが、最近、制御装置と端
末装置は数百米離して設置されることが多く、このため
、インタフェース信号線５の信号線数を極力減少させる
ことが望まれ、従って、電源も制御装置と端未装置でそ
れぞれ個別に有すること）なり、それぞれ独立に電源の
投入切断を行う煩向にある。このような場合、端末側で
勝手に電源の切断をされると、制御装置２あるいは処理
装置１では、その端末装置が故障をしているのか、意図
的に電源を切断されているのか不明となり、その後の処
置が出来ない。制御装置と端末装置が比較的近くに設置
されている場合には、その間に電源制御線を設置し、電
源の投入切断を一括して行なうことが可能となるが、先
に述べた通り、数百米も離れた多数の端末装置３ａ，〜
３ｎに電源制御線を引くことは得策ではない。本発明の
目的は、上記のようなシステム構成において、端末装置
で電源を切断したとき、この旨を中央の処理装置に知ら
せ、他の故障と区別をし、システムの保全性を高めるこ
とにある。The processing device 1 and the control device 2 are connected through a communication line 4. The control device 2 and each terminal device 3a to 3n are also connected by an interface signal line 5, but recently, the control device and the terminal device are often installed several hundred meters apart, and for this reason, the interface signal line 5 It is desirable to reduce the number of signal lines as much as possible, and therefore the control device and the terminal device must each have separate power supplies, making it difficult to turn on and off the power to each device independently. In such a case, if the power is cut off without permission on the terminal side, the control device 2 or processing device 1 will not know whether the terminal device is malfunctioning or whether the power has been intentionally cut off. , no further treatment is possible. If the control device and the terminal device are installed relatively close to each other, it is possible to install a power control line between them and turn the power on and off all at once, but as mentioned earlier, the number of A large number of terminal devices 3a, ~ 100 meters away
It is not a good idea to draw a power supply control line to 3n. An object of the present invention is to improve the maintainability of the system by notifying the central processing unit when the power is turned off at the terminal device in the system configuration as described above, and distinguishing it from other failures. .
上記の目的を達成するため，本発明では端末装置の電源
スイッチを切っても、すぐに電源を切断せず、端末制御
袋直に電源を切断する旨報告した後、あるいはその後制
御装置から許可を得て電源を切るようにする。以下、実
施例により本発明の内容を詳細に説明する。第２図は本
発明を適用した端末装置３ｉの一実施例である。In order to achieve the above object, in the present invention, even if the power switch of the terminal device is turned off, the power is not cut off immediately, but after reporting to the terminal control bag directly that the power will be cut off, or after receiving permission from the control device. and then turn off the power. Hereinafter, the content of the present invention will be explained in detail with reference to Examples. FIG. 2 shows an embodiment of a terminal device 3i to which the present invention is applied.
図において、６は電源スイッチ、７はモードスイッチ、
８はスイッチ７の状態により電源スイッチ６の機能を変
更する回路、９は電源スイッチ６の状態を記憶しておく
回路、１０は電源切断の報告を制御装置２に行なう等の
動作をする制御回路、１１は送受信回路、１２は電源、
１３，１４‘ま電源を切断する信号を伝える信号線であ
る。電源１２の投入切断は電源スイッチ６によって行な
われるが、その場合、切断を制御装置２に報告するモー
ドと報告をしないモードに分ける。In the figure, 6 is a power switch, 7 is a mode switch,
8 is a circuit that changes the function of the power switch 6 depending on the state of the switch 7; 9 is a circuit that stores the state of the power switch 6; 10 is a control circuit that performs operations such as reporting power cutoff to the control device 2; , 11 is a transmitting/receiving circuit, 12 is a power supply,
13 and 14' are signal lines that transmit a signal to turn off the power. The power supply 12 is turned on and off by the power switch 6, and in that case, it is divided into a mode in which the disconnection is reported to the control device 2 and a mode in which it is not reported.
こ）で、前者のモードをリモート状態、後者をローカル
状態と呼ぶこと）する。モードスイッチ７は、このモー
ド指定を行なうものである。ローカル状態の場合は、機
能変更回路８により電源スイッチ６の切断指示は信号線
１３を介して直接電源１２に伝えられこれの切断を行な
う。機能変更回路８はモードスイッチ７の状態によりロ
ーカル状態かりモート状態かを記憶している。さて、リ
モート状態で電源スイッチ６により切断指示をすると、
その切断指示信号は信号線１４に伝えられ、記憶回路９
記憶される。一方制御装置２はケーブル５を介して端末
装置３ｉに送信情報の有無、あるいは、受信可能な状態
にあるかを問い合せる。すなわち「いわゆるボーリング
を行なう。送受信回路１１は、このボーリング方式の通
信制御を行なうことが可能な回路である。制御回路１０
は記憶回路９からの切断信号を受け「かつ、送受信回路
１１を通し端末制御装置２からボーリングされている旨
の信号を受けると、たゞちに送受信回路１１を介して制
御装置２に電源１２を切断する旨報告し、その後電源１
２を切断する。なお、上記の例は電源を切断する旨の報
告を制御装置に行った後必ず電源の切断を行なう場合で
あるが、制御装置２と端末装置３ｉの間に制御手順を作
れば、制御装置２の意志に反して端末装置３ｉの電源を
切断することを禁止することも可能である。In this case, the former mode is called the remote state and the latter mode is called the local state). The mode switch 7 is for specifying this mode. In the local state, the function change circuit 8 transmits the disconnection instruction of the power switch 6 directly to the power supply 12 via the signal line 13, thereby disconnecting the power supply. The function change circuit 8 stores whether it is a local state or a remote state depending on the state of the mode switch 7. Now, if you issue a disconnection instruction using the power switch 6 in the remote state,
The disconnection instruction signal is transmitted to the signal line 14 and the storage circuit 9
be remembered. On the other hand, the control device 2 inquires of the terminal device 3i via the cable 5 whether there is information to be transmitted or whether the terminal device 3i is in a receivable state. That is, "so-called bowling is performed. The transmitting/receiving circuit 11 is a circuit that can perform communication control of this bowling method. The control circuit 10
receives a disconnection signal from the memory circuit 9 and receives a signal from the terminal control device 2 through the transmitting/receiving circuit 11 to the effect that it is being bored, and immediately transmits the power supply 12 to the control device 2 via the transmitting/receiving circuit 11. report that power supply 1 will be disconnected, and then turn off power supply 1
Cut 2. Note that the above example is a case where the power is always turned off after reporting to the control device that the power will be cut off, but if a control procedure is created between the control device 2 and the terminal device 3i, the control device 2 It is also possible to prohibit turning off the power of the terminal device 3i against the will of the terminal device 3i.
この場合、制御回路１０では記憶回路９から切断要求を
受けると、これを送受信回路１１を通じて制御装置２に
報告し、次に制御装置２からの許可があってから、電源
１２に切断指示を出すようにする。以上の説明から明ら
かな如く、本発明によれば、端末制御装置、中央処理装
置は他の障害と区別をして、端末装置が意図的に電源を
切断したことを知ることが出来「 システムの保全性を
高めることができる。In this case, when the control circuit 10 receives a disconnection request from the storage circuit 9, it reports this to the control device 2 through the transmitting/receiving circuit 11, and then issues a disconnection instruction to the power source 12 after receiving permission from the control device 2. do it like this. As is clear from the above explanation, according to the present invention, the terminal control device and the central processing unit can distinguish it from other failures and know that the power of the terminal device has been intentionally cut off. Maintainability can be improved.
即ち、電源切断の報告を受けていない場合、端末制御装
置からのボーリングに対して端末装置が無応答になると
、端末制御装置、中央処理装置は当該端末装置で障害が
発生したと判断し、該障害に対して迅速に対処すること
ができる。In other words, when a terminal device becomes unresponsive to boring from the terminal control device without receiving a power-off report, the terminal control device and central processing unit determine that a failure has occurred in the terminal device, and Failures can be dealt with quickly.
第１図は本発明で対象とするシステム構成例を示す図、
第２図は本発明を適用した端末装置の一実施例を示す図
である。
１・・・中央処理装置、２・・・端末制御装置、３ａ〜
３ｎ…端末装置、６・・・電源スイッチ、７・・・モー
ドスイッチ、８・・・機能変更回路、９…記憶回路、１
０・・様耳御回路、１ １…送受信回路、１２・・・電
源。
第１図第２図FIG. 1 is a diagram showing an example of a system configuration targeted by the present invention.
FIG. 2 is a diagram showing an embodiment of a terminal device to which the present invention is applied. 1... Central processing unit, 2... Terminal control device, 3a~
3n...Terminal device, 6...Power switch, 7...Mode switch, 8...Function change circuit, 9...Memory circuit, 1
0...Signal control circuit, 1 1...Transmission/reception circuit, 12...Power supply. Figure 1 Figure 2
Claims (1)
複数台の端末装置とで構成され、前記端末制御装置と各
端末装置との間でポーリング形式で通信制御を行うシス
テムにおいて、前記端末装置は当該装置内電源を切断す
る際、前記端末制御装置からのポーリングに対して電源
を切断する旨を応答し、その後装置内電源を切断するこ
とを特徴とする電源制御方式。 ２ 前記端末装置は端末制御装置に電源を切断する旨の
応答を行つた後、端末制御装置から許可信号を受け取つ
て電源を切断することを特徴とする特許請求の範囲第１
項記載の電源制御方式。[Scope of Claims] 1. A system comprising a terminal control device and a plurality of terminal devices controlled by the terminal control device, and performing communication control in a polling format between the terminal control device and each terminal device. . A power supply control method, characterized in that, when the terminal device turns off the power inside the device, the terminal device responds to polling from the terminal control device to the effect that the power is to be cut off, and then turns off the power inside the device. 2. Claim 1, wherein the terminal device responds to the terminal control device to cut off the power, and then receives a permission signal from the terminal control device and cuts off the power.
Power control method described in section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53069496A JPS6027046B2 (en) | 1978-06-09 | 1978-06-09 | Power control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP53069496A JPS6027046B2 (en) | 1978-06-09 | 1978-06-09 | Power control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54160129A JPS54160129A (en) | 1979-12-18 |
| JPS6027046B2 true JPS6027046B2 (en) | 1985-06-27 |
Family
ID=13404375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP53069496A Expired JPS6027046B2 (en) | 1978-06-09 | 1978-06-09 | Power control method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6027046B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61200345U (en) * | 1985-06-06 | 1986-12-15 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59212930A (en) * | 1983-05-18 | 1984-12-01 | Hitachi Ltd | Terminal-driven power-on control method and control device |
| JP2007287101A (en) * | 2006-04-20 | 2007-11-01 | Hitachi Ltd | System pause control method and control system |
-
1978
- 1978-06-09 JP JP53069496A patent/JPS6027046B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61200345U (en) * | 1985-06-06 | 1986-12-15 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS54160129A (en) | 1979-12-18 |
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