JPS58201450A - Terminal controlling system - Google Patents

Terminal controlling system

Info

Publication number
JPS58201450A
JPS58201450A JP57085245A JP8524582A JPS58201450A JP S58201450 A JPS58201450 A JP S58201450A JP 57085245 A JP57085245 A JP 57085245A JP 8524582 A JP8524582 A JP 8524582A JP S58201450 A JPS58201450 A JP S58201450A
Authority
JP
Japan
Prior art keywords
carrier signal
terminal
carrier
terminal control
received
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.)
Pending
Application number
JP57085245A
Other languages
Japanese (ja)
Inventor
Kazuyuki Fukuda
和之 福田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP57085245A priority Critical patent/JPS58201450A/en
Publication of JPS58201450A publication Critical patent/JPS58201450A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/02Details
    • H04L12/10Current supply arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Sources (AREA)
  • Communication Control (AREA)

Abstract

PURPOSE:To prevent the application of power supply to a terminal device due to noise, by adding a device monitoring and processing a carrier signal to a terminal controlling device so as to discriminate whether or not a signal is the carrier signal reported by noise. CONSTITUTION:The terminal controlling device 3 waits for the carrier signal from a modulation and demodulation device 2. In receiving the carrier signal from the modulation and demodulation device 2, a carrier signal monitoring timer is started for the discrimination of the carrier signal in this case. If no carrier signal is received, it is discriminated that the received carrier signal comes from noise, and when the carrier signal is received, the discrimination by the carrier monitoring timer is executed. When the carrier monitoring timer reaches the timeout, since it is evident that the carrier signals are received continuously for an arbitrary set time of the carrier monitoring timer after the start of receiving of the carrier signal, the power supply is applied to a terminal device 4 by the result.

Description

【発明の詳細な説明】 本発明は端末制御システムに係り、特に通信回線な使用
してデータ通信な行なう端末装置において、通信回線か
らの電源投入信号を受信して端末装置の電源を投入する
喝未制御システムに関するものである。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a terminal control system, and particularly to a terminal device that performs data communication using a communication line. It is about uncontrolled systems.

従来この種の端末制御システムとしては、第1図に示さ
れるものが知られている。第1図は従来の端末制御シス
テムを示すブロック構成図である。
As a conventional terminal control system of this type, the one shown in FIG. 1 is known. FIG. 1 is a block diagram showing a conventional terminal control system.

第1図において、lは通信回線、λは変復調装置、3は
端末制御装置、ダは端末装置、Sは端末装置ダに接続さ
れる通信制御装置である。第2図は第1図における端末
制御装置の動作タイミングを示す図であり、変復調装置
2からのキャリア信号     □(電源投入信号)を
受信したことにより、直ちに端末装置すの電源(図示し
ない)な投入することを示している。
In FIG. 1, l is a communication line, λ is a modem, 3 is a terminal control device, DA is a terminal device, and S is a communication control device connected to the terminal device DA. FIG. 2 is a diagram showing the operation timing of the terminal control device in FIG. Indicates that it will be invested.

次に動作について説明する。第1図に示される変復調装
置2は、通信回線lに相手側からの電源投入信号が発生
したことな検出すると、キャリア信号な端末制御装置3
へ報告する。端末制御装置3は上記キャリア信号な受信
したことにより、端末装置ダの電源な投入する。ところ
が、時として通信回@/に不要な雑音が発生される場合
に、変復調装置2から畝りのキャリア信号な端末制御装
置3へ報告することがあり、この場合においても、端末
制御装置3は鴻末装置参の電源を投入して誤動作な起す
ことがある。
Next, the operation will be explained. When the modulation/demodulation device 2 shown in FIG.
Report to. Upon receiving the carrier signal, the terminal control device 3 turns on the power of the terminal device. However, sometimes when unnecessary noise is generated in the communication channel @/, the modulation/demodulation device 2 may report a carrier signal of a ridge to the terminal control device 3. Even in this case, the terminal control device 3 Malfunctions may occur when the power is turned on to the Kosue equipment.

従来の端末制御システムにおける端末制御装置は以上の
ように構成されているので、キャリア信号が変復調装置
から報告された瞬間に端末装置の電源を投入するために
、不要な雑音によっても、端末制御装置の制御により端
末装置の電源な誤投入してしまうという欠点があった。
Since the terminal control device in the conventional terminal control system is configured as described above, in order to turn on the power of the terminal device at the moment when the carrier signal is reported from the modem, the terminal control device is This has the drawback that the power to the terminal device may be turned on incorrectly due to this control.

本発明は上記のような従来のものの欠点を除去するため
になされたもので、端末制御装置にキャリア信号な監視
処理する装置を付加することにより、雑音によって報告
されたキャリア信号かどうかを判定して、雑音による端
末装置の電源の投入を防止するようにしてなる端末制御
システムを提供することな目的としている。
The present invention was made in order to eliminate the drawbacks of the conventional ones as described above, and by adding a device for monitoring and processing carrier signals to the terminal control device, it is possible to determine whether or not the carrier signal is reported due to noise. Therefore, it is an object of the present invention to provide a terminal control system that prevents power-on of a terminal device due to noise.

以下、本発明の一実施例を図について説明する。An embodiment of the present invention will be described below with reference to the drawings.

本発明の一実施例である端末制御システムのブロック構
成は、上記第1図に示す従来の端末制御システムのブロ
ック構成図のものと同じである。第3図は本発明の一実
施例である端末制御システムにおける端末制御装置の動
作タイミングな示す図、第1図は第3図における端末制
御装置の動作タイミングを発生させるための概略動作な
示すフローチャートである。
The block configuration of the terminal control system that is an embodiment of the present invention is the same as the block configuration diagram of the conventional terminal control system shown in FIG. 1 above. FIG. 3 is a diagram showing the operation timing of the terminal control device in the terminal control system which is an embodiment of the present invention, and FIG. 1 is a flowchart showing the general operation for generating the operation timing of the terminal control device in FIG. It is.

上記のようにして構成された端末制御システムの端末制
御装置の動作について、第1図、第3図及び第ダ図な用
いて説明する。第1図に示す端末制御装置3は変復調装
置2からのキャリア信号な、第ダ図のステップ、?Oa
で示すように、キャリア信号を受信するまで待ち続ける
。今、変復調装置2からキャリア信号を受信すると、ス
テップ、10 bで示すようにキャリア信号監視タイマ
なスタートし、ステップ30Cでこの時のキャリア信号
の判定を行なう。もし、キャリア信号を受信していなか
ったならば、ステップ10aで受信したキャリア信号は
雑音によるものと判定し、再度ステップ、70aに戻る
。ステップ10Qでキャリア信号を受信していたならば
、ステップ、?Odで示すようにキャリア信号監視タイ
マ判定な行なう。この時、タイムアウトになっていなけ
ればステップ30Cに戻り、同様の処理す繰り返す。ス
テップ?Odでタイムアウトになった時は、キャリア信
号受信開始後キャリア信号監視タイマの任意の設定時間
内、連続してキャリア信号な受信していたので、ステッ
プ10eに示すように端末装置ダの電源な投入する。(
第3図参照) 以上のような処理により、通信回線lに発生した雑音の
ために端末装置ダの電源が投入されることがなくなり、
端末装置参に対して無駄な処理な実行させないで済むこ
とになる0 なお、上記実施例ではデータ通信を行なう通信回線から
の雑音に対する対策について説明したが、電話回線を用
いる通信回線においても同じく利用できる。この場合、
間違い電話が掛かつてきた時に、相手側からの話し声又
は交換機からの話中音などの信号により、変復調装置か
ら報告されるキャリア信号では、端末装置の電源な投入
しないようにキャリア信号監視タイマな設定しておけば
、端末装置の電源の誤投入防止かでき、上記実施例と同
様の効果を奏する。
The operation of the terminal control device of the terminal control system configured as described above will be explained using FIG. 1, FIG. 3, and FIG. The terminal control device 3 shown in FIG. 1 receives the carrier signal from the modulation/demodulation device 2. Oa
Continue waiting until a carrier signal is received, as shown in . Now, when a carrier signal is received from the modulator/demodulator 2, a carrier signal monitoring timer is started as shown in step 10b, and the carrier signal at this time is determined in step 30C. If no carrier signal has been received, it is determined in step 10a that the received carrier signal is due to noise, and the process returns to step 70a again. If the carrier signal is received in step 10Q, step ? Carrier signal monitoring timer determination is performed as indicated by Od. At this time, if the timeout has not occurred, the process returns to step 30C and the same process is repeated. Step? When the timeout occurred at Od, the carrier signal was continuously received within the arbitrary setting time of the carrier signal monitoring timer after carrier signal reception started, so turn on the power to the terminal device as shown in step 10e. do. (
(See Figure 3) Through the above process, the terminal equipment will not be powered on due to noise generated on the communication line.
This eliminates the need for unnecessary processing to be performed on the terminal device.In the above embodiment, countermeasures against noise from communication lines for data communication have been explained, but they can also be used for communication lines using telephone lines. can. in this case,
When a wrong call is received, the carrier signal that is reported from the modulator/demodulator due to the voice of the other party or the busy tone from the exchange is set as a carrier signal monitoring timer so that the power to the terminal equipment is not turned on. By doing so, it is possible to prevent the terminal device from being erroneously turned on, and the same effect as in the above embodiment can be achieved.

以上のように、本発明に係る端末制御システムによれば
、端末制御装置がキャリア信号な任意に設定された時間
の間、連続して報告されたことな確認したとき、端末装
置の電源な投入するように構成したので、通信回線に発
生した雑音により端末装置の電源な誤投入することが防
止され、極めて信頼性の高い端末制御システムを安価に
得られるという優れた効果を奏するものである0
As described above, according to the terminal control system according to the present invention, when the terminal control device confirms that a carrier signal has been continuously reported for an arbitrarily set time, the power of the terminal device is turned on. This configuration prevents the terminal device from being turned on incorrectly due to noise generated in the communication line, and has the excellent effect of providing an extremely reliable terminal control system at a low cost.

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

第1図は従来の端末制御システムを示すブロック構成図
、第2図は第1図における端末制御装置の動作タイミン
グを示す図、第3図は本発明の一実施例である端末制御
システムにおける端末制御装置の動作タイミングな示す
図、第弘図は第3図における端末制御装置の動作タイミ
ングな発生させるための概略動作な示すフローチャート
である。 l・・・通信回線、2・・・変復調装置、3・・・端末
制御装置、ダ・・・端末装置、S・・・通信制御装置。 なお、図中、同一符号は同一、又は相当部分を示す。 代理人  葛  野   信  −
FIG. 1 is a block configuration diagram showing a conventional terminal control system, FIG. 2 is a diagram showing the operation timing of the terminal control device in FIG. 1, and FIG. 3 is a terminal in a terminal control system that is an embodiment of the present invention. FIG. 3 is a flowchart showing the general operation for generating the operation timing of the terminal control device in FIG. 3. l... Communication line, 2... Modulation/demodulation device, 3... Terminal control device, D... Terminal device, S... Communication control device. In addition, in the figures, the same reference numerals indicate the same or equivalent parts. Agent Shin Kuzuno −

Claims (1)

【特許請求の範囲】[Claims] 変復調装置、端末制御装置及び端末装置とから構成され
る端末制御システムにおいて、前記変復調装置からのキ
ャリア信号な任意に設定された時間の間0、連続して受
信したことを確認したとき、前記端末制御装置によって
前記端末装置の電源を投入するようにしてなる構成とし
たことを特徴とする端末制御システム0
In a terminal control system comprising a modem, a terminal control device, and a terminal, when the terminal confirms that it has continuously received a carrier signal from the modem for an arbitrarily set time, the terminal A terminal control system 0 characterized in that the terminal device is configured to be powered on by a control device.
JP57085245A 1982-05-20 1982-05-20 Terminal controlling system Pending JPS58201450A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57085245A JPS58201450A (en) 1982-05-20 1982-05-20 Terminal controlling system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57085245A JPS58201450A (en) 1982-05-20 1982-05-20 Terminal controlling system

Publications (1)

Publication Number Publication Date
JPS58201450A true JPS58201450A (en) 1983-11-24

Family

ID=13853174

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57085245A Pending JPS58201450A (en) 1982-05-20 1982-05-20 Terminal controlling system

Country Status (1)

Country Link
JP (1) JPS58201450A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6130845A (en) * 1984-07-24 1986-02-13 Matsushita Electric Ind Co Ltd Serial transfer device
EP0289253A2 (en) * 1987-04-25 1988-11-02 Sharp Kabushiki Kaisha System and method for controlling terminal equipment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6130845A (en) * 1984-07-24 1986-02-13 Matsushita Electric Ind Co Ltd Serial transfer device
EP0289253A2 (en) * 1987-04-25 1988-11-02 Sharp Kabushiki Kaisha System and method for controlling terminal equipment

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