JPS6224798A - Time division multiplex transmission system - Google Patents

Time division multiplex transmission system

Info

Publication number
JPS6224798A
JPS6224798A JP60164341A JP16434185A JPS6224798A JP S6224798 A JPS6224798 A JP S6224798A JP 60164341 A JP60164341 A JP 60164341A JP 16434185 A JP16434185 A JP 16434185A JP S6224798 A JPS6224798 A JP S6224798A
Authority
JP
Japan
Prior art keywords
signal
control
terminal device
polling
mode
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.)
Granted
Application number
JP60164341A
Other languages
Japanese (ja)
Other versions
JPH0646829B2 (en
Inventor
Yoshiyuki Komoda
美行 薦田
Yoshiharu Suzuki
義春 鈴木
Yuji Nakagawa
裕司 中川
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.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
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 Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP60164341A priority Critical patent/JPH0646829B2/en
Publication of JPS6224798A publication Critical patent/JPS6224798A/en
Publication of JPH0646829B2 publication Critical patent/JPH0646829B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Small-Scale Networks (AREA)
  • Selective Calling Equipment (AREA)

Abstract

PURPOSE:To improve or add system function without attending large cost-up by using the centralized control system and the decentralized control system in common in the time division multiplex transmission system adding a decentralized processing function to the centralized control system by the polling system so as to add the decentralized processing function to an optional terminal device. CONSTITUTION:When a detentralized processing terminal device 3a desires to control a terminal device 3b by the own program not by the control program of a master device 1, the master device 1 is used simply as a relay device and the control content is sent to the master device 1 as a return signal A to the polling signal together with a terminal device address to be controlled, and when the master device 1 detects that the mode signal is logical '1', the transmission of the next polling signal is stopped tentatively and the reply data part of the reply signal A is converted from the current mode into the voltage mode and it is retransmitted again as a control signal B. When grade-up control function is desired after the installation of the system, it is attained by having only to add a terminal device having the decentralized processing function.

Description

【発明の詳細な説明】 [技術分野1 本発明はポーリング方式による集中制御システムに分散
処理機能を付加した時分割多重伝送方式%式% ] 従来のポーリング方式による時分割負荷制御システムは
、各端末器の機能が比較的単純でコストが安く、ユーザ
は端末器を追加購入することにより容易に負荷数を増加
させることができるという利点がある反面、一旦納入設
置した後にシステム機能をアップすることは、親機のプ
ログラムを変更する必要があるのできわめて困難である
。また一方、すべての端末器が親機と同等の機能を持つ
分散制御方式は、納入設置後も所要のIf11能を有す
る端末器をラインに接続するだけでシステム機能をアッ
プすることができるが、各端末が親機の機能を持つため
にハード的にもソフト的にも複雑になり、システム全体
のコストが高くなるという欠点がある。
[Detailed Description of the Invention] [Technical Field 1] The present invention is a time-division multiplex transmission system in which a distributed processing function is added to a polling-based centralized control system.] A conventional polling-based time-division load control system The functions of the device are relatively simple and the cost is low, and the user can easily increase the number of loads by purchasing additional terminal devices. This is extremely difficult as it requires changing the program on the base unit. On the other hand, in a distributed control system where all terminals have the same functions as the master unit, system functionality can be increased even after delivery and installation by simply connecting terminals with the required If11 functionality to the line. Since each terminal has the function of a master device, the hardware and software become complicated, which has the disadvantage of increasing the cost of the entire system.

[発明の目的] 本発明は上記の問題点に鑑み為されたものであり、その
目的とする°ところは、集中制御方式と分数制御方式と
を併用して、任意の端末器に分散処理機能を付加するこ
とにより、大幅なコストアップを伴なわずにシステム機
能を向上もしくは追加できるような伝送方式を提供する
にある。
[Object of the Invention] The present invention has been made in view of the above-mentioned problems, and its purpose is to provide a distributed processing function to any terminal by using both a centralized control method and a fractional control method. The purpose of the present invention is to provide a transmission method that allows system functions to be improved or added without a significant increase in cost.

[発明の開示1 しかして本発明による時分割多重伝送方式は、親機から
伝送線を介して複数の端末器へ端末器アドレス及び送信
データを含む制御信号によりポーリングを行ない、ポー
リングを受けた端末器は電流信号によりm磯へ返送信号
を返信する方式の双方向伝送システムにおいて、返送信
号の先頭に通常処理モードと分散処理モードとを区別す
るモード信号を付加すると共に、親機は分散処理モード
の返送信号を受信するとポーリングを一時中止して、該
返送信号の返信データ部を電流信号から電圧信号に変換
し制御信号として再送出するようにしたものであり、分
散処理用端末器は分散処理モードの返送信号中に端末器
アドレス及び送信データを含めることにより、親機の制
御プログラムを介することなく、他の端末器を制御した
り、あるいはデータの授受を行なっrこ1)することが
できるようにした点に特徴を有するものである。
[Disclosure of the Invention 1] However, in the time division multiplex transmission system according to the present invention, polling is performed from a base unit to a plurality of terminals via a transmission line using a control signal including a terminal address and transmission data, and the polled terminals In a two-way transmission system in which the device sends a return signal to Miso using a current signal, a mode signal is added to the beginning of the return signal to distinguish between normal processing mode and distributed processing mode, and the main device is in distributed processing mode. When a return signal is received, polling is temporarily stopped, the return data part of the return signal is converted from a current signal to a voltage signal, and the signal is retransmitted as a control signal. By including the terminal address and transmission data in the mode return signal, it is possible to control other terminals or exchange data without going through the control program of the base unit. It is characterized by the fact that it is made as follows.

[実施例J 第1図は本発明方式の全体構成をブロック回路図で示し
たもので、親機1、一般端末器2および分散処理用端末
器3が伝送ライン4に接続されており、i12図に示す
ように親機からの制御信号に対してアドレスの一致した
端末器から返送信号が返信される。分散処理用端末器3
も一般端末器2と同様の動作を行なっており、例えばf
jSa図に示すように、分散処理用端末器3がアドレス
3に接続されているものとすると、ポーリング動作中の
親機1からは、アドレス1→アドレス2→アドレス3→
・・・→アドレスn−アドレス1というように、分散処
理用端末器3をも含めてすべての端末器が循環的にアク
セスされている。
[Embodiment J] Figure 1 shows the overall configuration of the system of the present invention in a block circuit diagram, in which a base unit 1, a general terminal 2, and a distributed processing terminal 3 are connected to a transmission line 4, and an i12 As shown in the figure, in response to the control signal from the parent device, a return signal is sent back from the terminal device with the matching address. Distributed processing terminal device 3
also performs the same operation as the general terminal 2, for example f
jSa As shown in the diagram, assuming that the distributed processing terminal 3 is connected to address 3, from the base device 1 during polling operation, address 1 → address 2 → address 3 →
...→address n - address 1, and all the terminals including the distributed processing terminal 3 are accessed cyclically.

第4図はポーリング時の制御信号及び返送信号の7t−
マットを示したもので、ポーリング信号は、「0」か「
1」かで通常モードか分散処理モードかを区別するモー
ド信号、端末器アドレス、大の送信データ部のデータ長
を示すバイトカウンタ、端末器への制御情報を含む送信
データ部、制御信号全体の伝送エラーをチェックするた
めのチェ・ンクサムデータで構成されており、返送信号
はモード信号、バイトカウンタ、負荷の状態や各種監視
センサの状態を返送する返信データ、チェックサムで構
成されでいる。第5図は親機からの信号波形の1例を示
したもので、パルス幅の長いものをデータ「1」、短い
ものをデータ「0」としでおり、端末器からの電流モー
ドによる返送信号も同一の41号波形を用いる。
Figure 4 shows the control signal and return signal 7t- during polling.
The polling signal is either "0" or "
1”, a mode signal that distinguishes between normal mode and distributed processing mode, a terminal device address, a byte counter indicating the data length of the large transmission data section, a transmission data section containing control information for the terminal, and a control signal for the entire control signal. It consists of check sum data to check for transmission errors, and the return signal consists of a mode signal, a byte counter, reply data that returns the load status and the status of various monitoring sensors, and a check sum. Figure 5 shows an example of the signal waveform from the base unit, with a long pulse width as data “1” and a short pulse width as data “0”. The same No. 41 waveform is also used.

親機1は第6図に示すように、CPUを内蔵したロジッ
ク部11、キーボードよりなる操作部12及VM号を送
受するドライバ部13で構成されており、ロジック部1
1にはポーリングの順序や周期、各端末器からの返送信
号に応じて行なうべき制御信号の送出あるいは表示など
がプログラムされており、親機によってシステム全体の
管理が行なわれる。また端末器2,3は第7図に示すよ
うに、ロジック部21、操作部22、ドライバ部23、
出力部24で構成されており、受信された送信データは
ロジック&!S21のCPUによって判断され、出力部
24を介して外部機器の制御、監視センサなどの状態監
視、あるいは表示などを行なうと共に、返信待機期間に
センサ情報などを返信データとして返信する。操作部2
2から入力されるデータも返送信号としてa8!へ送ら
れる。
As shown in FIG. 6, the base device 1 is composed of a logic section 11 with a built-in CPU, an operation section 12 consisting of a keyboard, and a driver section 13 for transmitting and receiving VM numbers.
1 is programmed with the polling order and cycle, and the transmission or display of control signals to be performed in response to return signals from each terminal, and the master unit manages the entire system. Further, as shown in FIG. 7, the terminal devices 2 and 3 include a logic section 21, an operation section 22, a driver section 23,
It consists of an output section 24, and the received transmission data is sent to the logic &! The determination is made by the CPU in S21, and the output unit 24 controls the external equipment, monitors the status of the monitoring sensor, or displays the information, and also sends back sensor information as reply data during the reply waiting period. Operation unit 2
The data input from 2 is also sent as a return signal from a8! sent to.

第8図は親機1のドライバ部13の回路構成を示したも
ので、送信信号送出時には、ドライバトランジスタQ、
、Q2.Q3.Q、とインバータIV、によって極性が
反転する電圧信号が信号線に送出され、返送信号受信時
には、コンパレータcp、及び電流検出抵抗Rsにより
電流信号を電圧信号に変換して、ロジック部11へ出力
される。
FIG. 8 shows the circuit configuration of the driver section 13 of the base unit 1. When sending out a transmission signal, the driver transistor Q,
, Q2. Q3. A voltage signal whose polarity is inverted is sent to the signal line by Q and inverter IV, and when a return signal is received, the current signal is converted into a voltage signal by comparator cp and current detection resistor Rs, and is output to logic section 11. Ru.

第9図は端末器2.3のドライバ部23の回路構成を示
したもので、信号受信時には信号線の電圧変化をコンパ
レータCP2によりロジックレベルに変換してロジック
部21へ出力しており、返信時にはロジック部21から
の返信信号入力によりトランジスタQ5をオンオフする
ことにより信分線間のインピーダンスを変化させ、電流
信号として親機に返送する。また端末器の消費電力は小
さく、グイオードプリツノDBで線間電圧を整流平滑す
ることにより電源の供給を受けてしする。
FIG. 9 shows the circuit configuration of the driver section 23 of the terminal device 2.3. When receiving a signal, the voltage change on the signal line is converted to a logic level by the comparator CP2 and output to the logic section 21, and a reply is sent. At times, the impedance between the signal branch lines is changed by turning on and off the transistor Q5 in response to a return signal input from the logic section 21, and the signal is sent back to the base unit as a current signal. In addition, the power consumption of the terminal device is small, and the terminal device receives power by rectifying and smoothing the line voltage with the guiode pritzno DB.

第10図は本発明の要部をなす分散処理手段の説明図で
ある。同図においで、いま分散処理用端末器3aが親機
1の制御プログラムによらずに独自のプログラムによっ
て端末器3bを制御したし1場今に、親機1を単に中継
器として利用し、その制御内容を制御すべき端末器アド
レスと共に、ポーリング信号に対する返送信号イとして
親機1へ送り出し、親機1ではモード信号が「1」であ
ることを検出す・ると、次のポーリング信号の送出を一
時停止して、この返送信号イの返信データ部分を電流モ
ードから電圧モードに変換し、これを制御信号口として
おうむ返しに再送信する。
FIG. 10 is an explanatory diagram of the distributed processing means that constitutes the essential part of the present invention. In the figure, if the distributed processing terminal 3a has just controlled the terminal 3b using its own program without using the control program of the base unit 1, then the base unit 1 is now used simply as a relay, The control content is sent to base unit 1 along with the terminal device address to be controlled as a return signal in response to the polling signal, and when base unit 1 detects that the mode signal is "1", it sends the next polling signal. Transmission is temporarily stopped, the reply data portion of this return signal A is converted from current mode to voltage mode, and this is retransmitted in return using this as a control signal port.

第11図は分散処理時の返送信号の7オーマツトを示し
たもので、このときの返信データ部は第4図に示したポ
ーリング信号と同一の7オーマツトで作成しである。し
たがって端末n3bは実質的に、第10図のハに示した
ように、端末器3aによって制御されたことになる。返
信データ中のモード信号は、親機1からの制御信号を受
けた端末器3bが、それが通常のポーリング信号か分散
処理信号かを区別するためのもので、端末器3bは必要
とあれば、第11図の7オーマツトを用いて端末器3a
へ返信データを返送すればよい、なお返信データ部中の
モード信号あるいはポーリング信号中のモード信号は必
ずしも必要ではなく、例えば第11図の送信データ部に
モード情報を書き込んでおいてもよい。
FIG. 11 shows the 7-order format of the return signal during distributed processing, and the reply data section at this time is created in the same 7-order format as the polling signal shown in FIG. Therefore, the terminal n3b is substantially controlled by the terminal device 3a, as shown in FIG. 10C. The mode signal in the reply data is used by the terminal 3b that receives the control signal from the base unit 1 to distinguish whether it is a normal polling signal or a distributed processing signal, and the terminal 3b uses the control signal if necessary. , the terminal device 3a using the 7-ohmat shown in FIG.
Note that the mode signal in the reply data section or the mode signal in the polling signal is not necessarily necessary; for example, the mode information may be written in the transmission data section shown in FIG. 11.

第12図は親W11における返送信号の処理手段を70
−チャートで示したもので、もちろん八−ドウエアでも
簡単に構成することができる。親機はポーリングに対す
る端末器からの返送信号を営信すると、そのモード信号
ビットが「1」か「0」かを判定し、「0」であれば次
の7ドレスへのポーリングを続行し、「1」であればそ
の返信データ部を制御信号として再送信し、次の返送信
号を待機する。もし次の返送信号が「モード1」であれ
ば、同様にしてその返信データ部を再送信するので、分
散処理用端末器は即座に制御信号に対する返信を受は取
ることができるのである。
FIG. 12 shows the return signal processing means in the parent W11 at 70.
-It is shown in a chart, and of course can be easily constructed using eight-doware. When the base unit transmits a return signal from the terminal device in response to polling, it determines whether the mode signal bit is “1” or “0”, and if it is “0”, it continues polling to the next 7 addresses, If it is "1", it retransmits the reply data part as a control signal and waits for the next reply signal. If the next return signal is "mode 1", the return data part is retransmitted in the same way, so that the distributed processing terminal can immediately receive and receive a reply to the control signal.

[発明の効果1 上記の構成によれば、例えばシステムを納入設置した後
に制御II&能をグレードアップしたいという要求があ
った場合、単に分散処理手段m能を有する端末器を追加
するだけでよいので、従来のように親機を取り替えたり
、it$1のプログラムROMを書き替えたりする必要
がないという利点があり、また低コストで分散処理方式
を併用することができるので、この種の伝送システムの
利用範囲を着しく拡大し得るという利点がある。
[Effect of the invention 1] According to the above configuration, for example, if there is a request to upgrade the control II & function after the system has been delivered and installed, it is sufficient to simply add a terminal device having the distributed processing means M function. This type of transmission system has the advantage of not having to replace the base unit or rewrite the IT$1 program ROM as in the past, and can also be used with a distributed processing method at low cost. This has the advantage of significantly expanding the scope of use.

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

tjSi図は本発明の一実施例を示すシステムの全体ブ
ロック図、第2図及び第3図は同上の動作説明図、第4
図は同上の通常動作時における信号の7オ一マツト図、
第5図は同上の信号波形図、第6図は同上の親機のブロ
ック図、#7図は同上の端末器のブロック図、分散制御
端末の構成を示すブロック回路図、tjSB図は親機の
ドライバ部の回路構成図、第9図は端末器のドライバ部
の回路構成図、第10図は分散処理時のシステムの動作
説明図、$11図は分散処理時の返送信号の7オ一マツ
ト図、第12図は親機の返送信号処理動作を示す70−
チャートである。 1は親機、2は通常端末器、3は分散処理用端末器、4
は伝送ライン。 代理人 弁理士 石 1)艮 七 111a!1 112図 1113図 第4図 Aピーリシク゛イを児 ite片 15m デーq°°1°+  +1++秘“°°“1°“116
図 簡7図 119図 IflO図
tjSi is an overall block diagram of the system showing one embodiment of the present invention, FIGS. 2 and 3 are operation explanatory diagrams of the same, and FIG.
The figure is a 7-ohm diagram of the signal during normal operation as above,
Figure 5 is a signal waveform diagram as above, Figure 6 is a block diagram of the base unit as above, Figure #7 is a block diagram of the terminal unit as above, block circuit diagram showing the configuration of the distributed control terminal, and tjSB diagram is the block diagram of the base unit as above. Figure 9 is a circuit diagram of the driver unit of the terminal, Figure 10 is an explanatory diagram of system operation during distributed processing, and Figure 11 is the 7-bit return signal during distributed processing. Fig. 12 shows the return signal processing operation of the base unit 70-
It is a chart. 1 is a master device, 2 is a normal terminal device, 3 is a distributed processing terminal device, 4
is the transmission line. Agent Patent Attorney Ishi 1) Ai 7111a! 1 112 Figure 1113 Figure 4
Figure 7 Figure 119 Figure IflO diagram

Claims (1)

【特許請求の範囲】[Claims] (1)親機から伝送線を介して複数の端末器へ端末器ア
ドレス及び送信データを含む制御信号によりポ−リング
を行ない、ポーリングを受けた端末器は電流信号により
親機へ返送信号を返信する方式の双方向伝送システムに
おいて、返送信号の先頭に通常処理モードと分散処理モ
ードとを区別するモード信号を付加すると共に、親機は
分散処理モードの返送信号を受信するとポーリングを一
時中止して、該返送信号の返信データ部を電流信号から
電圧信号に変換し制御信号として再送出するようにして
成ることを特徴とする時分割多重伝送方式。
(1) Polling is performed from the base unit to multiple terminals via a transmission line using a control signal that includes the terminal address and transmission data, and the terminal that receives the polling sends a return signal to the base unit using a current signal. In a two-way transmission system using a method that uses the same method, a mode signal is added to the beginning of the return signal to distinguish between normal processing mode and distributed processing mode, and when the base unit receives a return signal for distributed processing mode, it temporarily suspends polling. , a time division multiplex transmission system characterized in that the return data part of the return signal is converted from a current signal to a voltage signal and retransmitted as a control signal.
JP60164341A 1985-07-25 1985-07-25 Time division multiplex transmission system Expired - Lifetime JPH0646829B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60164341A JPH0646829B2 (en) 1985-07-25 1985-07-25 Time division multiplex transmission system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60164341A JPH0646829B2 (en) 1985-07-25 1985-07-25 Time division multiplex transmission system

Publications (2)

Publication Number Publication Date
JPS6224798A true JPS6224798A (en) 1987-02-02
JPH0646829B2 JPH0646829B2 (en) 1994-06-15

Family

ID=15791328

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60164341A Expired - Lifetime JPH0646829B2 (en) 1985-07-25 1985-07-25 Time division multiplex transmission system

Country Status (1)

Country Link
JP (1) JPH0646829B2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61245740A (en) * 1985-04-24 1986-11-01 Matsushita Electric Works Ltd Time division multiplex transmission system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61245740A (en) * 1985-04-24 1986-11-01 Matsushita Electric Works Ltd Time division multiplex transmission system

Also Published As

Publication number Publication date
JPH0646829B2 (en) 1994-06-15

Similar Documents

Publication Publication Date Title
JPS6224798A (en) Time division multiplex transmission system
GB9316003D0 (en) Information handling system
JPH02230838A (en) Method and equipment for communication of field sensor
JP2667909B2 (en) Elevator signal transmission method
JPH01500076A (en) Optional module for telephone line interface
JPS61245740A (en) Time division multiplex transmission system
JPS62193491A (en) Remote centralized control system
JPH0324112B2 (en)
JPH0374751A (en) Input/output controller
JPS6257337A (en) Data transmission equipment
JPS60230744A (en) Data transmission equipment in loop type communicating system
JPH03117244A (en) Transmission system
JPH0359756U (en)
JPS628254A (en) Signal receiving and distributing circuit
JPS6085463U (en) Time division multiplex transmission system
JPS6115527A (en) Demand controller
JPH0223185U (en)
JPH02143797A (en) Mode analyzer
JPS6138656U (en) Electronic copying machine control device
JPS61132041A (en) Demand controller
JP2001312459A (en) Control process group device
JPS63133796A (en) Constituting element managing system for key telephone system
JPS60236397A (en) Key telephone system
JPS63143639A (en) System monitoring device
JPS61177051A (en) Lsi for packet control

Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term