JPS6223516B2 - - Google Patents
Info
- Publication number
- JPS6223516B2 JPS6223516B2 JP53094782A JP9478278A JPS6223516B2 JP S6223516 B2 JPS6223516 B2 JP S6223516B2 JP 53094782 A JP53094782 A JP 53094782A JP 9478278 A JP9478278 A JP 9478278A JP S6223516 B2 JPS6223516 B2 JP S6223516B2
- Authority
- JP
- Japan
- Prior art keywords
- control
- signal
- master station
- slave station
- station
- 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
- 230000008054 signal transmission Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C25/00—Arrangements for preventing or correcting errors; Monitoring arrangements
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
- Selective Calling Equipment (AREA)
Description
【発明の詳細な説明】
本発明は１つの親局と１つ又は複数の子局から
なる遠隔制御方式に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a remote control system comprising one master station and one or more slave stations.
従来の遠隔制御方式では、第１図のタイムチヤ
ートに示すように、親局が送信する制御ON信号
１は子局で制御ON信号２と受信し、被制御対象
に対し制御信号３を出力する。制御出力３の解除
は親局が送信する制御OFF信号４を子局で制御
OFF信号５と受信することにより行なわれる。
この遠隔制御方式によれば、第２図に示すように
被制御対象に制御出力３を出力中に、親局から子
局への制御信号伝送路が障害となり（Ｓ部で障
害）親局から送信される制御OFF信号４が子局
で受信できない場合、該制御出力３を解除するこ
とができなくなる欠点があつた。 In the conventional remote control method, as shown in the time chart in Figure 1, control ON signal 1 sent by the master station is received as control ON signal 2 by the slave station, and control signal 3 is output to the controlled object. . To cancel control output 3, the slave station controls the control OFF signal 4 sent by the master station.
This is done by receiving the OFF signal 5.
According to this remote control method, as shown in Fig. 2, while outputting control output 3 to the controlled object, the control signal transmission path from the master station to the slave station becomes impaired (failure occurs in the S section). There is a drawback that if the transmitted control OFF signal 4 cannot be received by the slave station, the control output 3 cannot be canceled.
本発明は、この従来方式の欠点を解決するた
め、親局から周期的に制御ON信号を送信し、子
局は該制御ON信号の受信により、被制御対象を
制御し、一定時間以上の該制御ON信号受信断に
よつて、該制御を解除するようにしたものであ
る。 In order to solve this drawback of the conventional method, the present invention periodically transmits a control ON signal from the master station, and the slave station controls the controlled object by receiving the control ON signal, and controls the controlled object for a certain period of time or more. The control is canceled when the control ON signal is not received.
以下、図面を参照して本発明の一実施例を説明
する。 Hereinafter, one embodiment of the present invention will be described with reference to the drawings.
第３図は、本発明による子局の実施例であつて
２は子局が受信する制御ON信号の入力端子、３
は制御出力端子、６は制御ON信号を記憶するフ
リツプ・フロツプ、７は一定時間以上の制御ON
信号受信断を検出する回路であり、回路７の出力
はフリツプ・フロツプ６のリセツト端子に接続さ
れる。 FIG. 3 shows an embodiment of a slave station according to the present invention, in which 2 is an input terminal for a control ON signal received by the slave station, and 3 is an input terminal for a control ON signal received by the slave station.
is a control output terminal, 6 is a flip-flop that stores the control ON signal, and 7 is a control ON for a certain period of time or more.
This is a circuit for detecting interruption of signal reception, and the output of the circuit 7 is connected to the reset terminal of the flip-flop 6.
第３図の回路は、第４図のタイムチヤートに示
すように動作する。すなわち、親局が周期的に送
信する制御ON信号１，１′，１″，…は子局で制
御ON信号２，２′，２″，…と受信され、被制御
対象に対し、制御出力３を出力する。この制御を
解除する場合、親局は制御ON信号の送信を停止
することにより、子局は制御ON信号を受信でき
なくなり、回路７の働きによつて、Ｔ時間後に制
御出力３を解除する。 The circuit of FIG. 3 operates as shown in the time chart of FIG. 4. In other words, the control ON signals 1, 1', 1'', ... periodically transmitted by the master station are received as control ON signals 2, 2', 2'', ... by the slave station, and the control output is sent to the controlled object. Outputs 3. When canceling this control, the master station stops transmitting the control ON signal, so that the slave station can no longer receive the control ON signal, and the control output 3 is canceled after time T by the function of the circuit 7.
第３図の回路によれば、第５図に示すように、
親局が制御ON信号１，１′，１″，…を送信中
に、制御信号伝送路が障害となり（Ｓ部で障
害）、子局において制御ON信号が２′以降、受信
できなくなつた場合でも、制御出力３はＴ時間後
に解除することができる。 According to the circuit of FIG. 3, as shown in FIG.
While the master station was transmitting control ON signals 1, 1', 1'', etc., there was a failure in the control signal transmission path (failure in the S part), and the slave station could no longer receive control ON signals from 2' onwards. Even in this case, control output 3 can be released after time T.
以上説明したように、本発明による遠隔制御方
式では、親局から子局の被制御対象を遠隔制御中
に制御信号伝送路が途絶した場合でも、一定時間
後に、該制御を解除することができて、長時間、
連続して制御することのできない被制御対象に対
しても安心して遠隔制御できる利点を有する。 As explained above, in the remote control method according to the present invention, even if the control signal transmission path is interrupted while the master station is remotely controlling the controlled object of the slave station, the control can be canceled after a certain period of time. For a long time,
It has the advantage that even controlled objects that cannot be controlled continuously can be controlled remotely with peace of mind.
第１図は、従来の遠隔制御方式を説明するタイ
ムチヤート、第２図は従来方式の欠点を説明する
タイムチヤート、第３図は本発明による子局の実
施例を示す図、第４図はそのタイムチヤート、第
５図は本発明による利点を説明するタイムチヤー
トである。
なお、図において、１，１′，１″は親局が送信
する制御ON信号、２，２′，２″は子局が受信す
る制御ON信号、３は被制御対象への制御出力、
４は親局が送信するOFF信号、５は子局が受信
する制御OFF信号、６は制御ON信号を記憶する
フリツプ・フロツプ、７は制御ON信号の受信断
を検出する回路である。
FIG. 1 is a time chart explaining the conventional remote control method, FIG. 2 is a time chart explaining the drawbacks of the conventional method, FIG. 3 is a diagram showing an embodiment of the slave station according to the present invention, and FIG. The time chart, FIG. 5, is a time chart illustrating the advantages of the present invention. In the figure, 1, 1', 1'' are control ON signals transmitted by the master station, 2, 2', 2'' are control ON signals received by the slave station, 3 is a control output to the controlled object,
Reference numeral 4 designates an OFF signal transmitted by the master station, 5 a control OFF signal received by the slave station, 6 a flip-flop for storing the control ON signal, and 7 a circuit for detecting reception disconnection of the control ON signal.
Claims (1)
り、制御信号伝送路によりこれらの親局と子局と
が互いに接続されている遠隔制御方式において、
前記親局には前記制御信号伝送路を経由して、周
期的に制御ON信号を送信する手段を設け、前記
子局には該制御ON信号の受信によりセツトさ
れ、被制御対象を制御するフリツプフロツプと、
前記制御信号伝送路断による予め定めた一定時間
以上の前記制御ON信号受信断を検出し、前記フ
リツプフロツプをリセツトして前記制御を解除す
る検知器とを設けて成ることを特徴とする遠隔制
御方式。1 In a remote control system consisting of one master station and one or more slave stations, the master station and slave stations are connected to each other by a control signal transmission path,
The master station is provided with means for periodically transmitting a control ON signal via the control signal transmission path, and the slave station has a flip-flop that is set upon reception of the control ON signal and controls a controlled object. and,
A remote control system comprising: a detector that detects a failure in reception of the control ON signal for a predetermined period of time or more due to a disconnection of the control signal transmission path, and resets the flip-flop to cancel the control. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9478278A JPS5521655A (en) | 1978-08-02 | 1978-08-02 | Remote control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9478278A JPS5521655A (en) | 1978-08-02 | 1978-08-02 | Remote control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5521655A JPS5521655A (en) | 1980-02-15 |
| JPS6223516B2 true JPS6223516B2 (en) | 1987-05-23 |
Family
ID=14119648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9478278A Granted JPS5521655A (en) | 1978-08-02 | 1978-08-02 | Remote control system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5521655A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8507068D0 (en) * | 1985-03-19 | 1985-04-24 | Latimer Electronics Ltd | Remote control system |
| JPH0556946U (en) * | 1992-01-14 | 1993-07-30 | 三菱自動車工業株式会社 | Core bar quenching plug |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4878391A (en) * | 1972-01-31 | 1973-10-20 |
-
1978
- 1978-08-02 JP JP9478278A patent/JPS5521655A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4878391A (en) * | 1972-01-31 | 1973-10-20 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5521655A (en) | 1980-02-15 |
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