JPH08223248A - Polling processing system - Google Patents

Polling processing system

Info

Publication number
JPH08223248A
JPH08223248A JP7030452A JP3045295A JPH08223248A JP H08223248 A JPH08223248 A JP H08223248A JP 7030452 A JP7030452 A JP 7030452A JP 3045295 A JP3045295 A JP 3045295A JP H08223248 A JPH08223248 A JP H08223248A
Authority
JP
Japan
Prior art keywords
station
polling
secondary station
primary
data
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
JP7030452A
Other languages
Japanese (ja)
Inventor
Yoshiyuki Saito
義之 齋藤
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.)
Hitachi Software Engineering Co Ltd
Hitachi Ltd
Original Assignee
Hitachi Software Engineering Co Ltd
Hitachi 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 Hitachi Software Engineering Co Ltd, Hitachi Ltd filed Critical Hitachi Software Engineering Co Ltd
Priority to JP7030452A priority Critical patent/JPH08223248A/en
Publication of JPH08223248A publication Critical patent/JPH08223248A/en
Pending legal-status Critical Current

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  • Small-Scale Networks (AREA)
  • Communication Control (AREA)

Abstract

PURPOSE: To improve the processing efficiency through the processing of another channel without being monopolized by channel processing by setting an interval from the reception of polling by a secondary station side till a reply is returned in the case of the polling from a primary station to the secondary station to relieve an overhead due to consecutive idle polling. CONSTITUTION: A primary station 10 is connected to a secondary station 12 and polling is made between the primary station 10 and the secondary station 12. The primary station 10 is controlled by a polling circuit 11 of the primary station and the secondary station 12 is controlled by a polling circuit 13 of the secondary station. Then the primary station 10 sends an RR.P to the secondary station 12 and awaits a reply from the secondary station 12. If no transmission data are in existence in the secondary station 12, the secondary station 12 returns an RR.F to the primary station 10 after a designated time interval. When the data to be sent are produced in the secondary station 12 during the interval, the secondary station 12 stops the interval and sends the data immediately.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は、１次局が２次局からの
メッセージを受信するための手段（ポーリング）におい
ての２次局側でのポーリング処理方式に係り、特にオン
ラインシステムに好適なポーリング処理方式に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a polling processing method on the secondary station side in a means (polling) for a primary station to receive a message from a secondary station, and is particularly suitable for an online system. Regarding the polling processing method.

【０００２】[0002]

【従来の技術】ポーリング処理方式においては、例えば
特開昭６１−１５７１３２号公報に示されるように、利
用率の低い２次局に対してはポーリングを行う側（１次
局）の制御によってポーリング頻度を少なくして空ポー
リングによるオーバヘッドを削減するという方式があっ
た。2. Description of the Related Art In a polling processing method, as shown in, for example, Japanese Patent Laid-Open No. 61-157132, polling is performed by a side (primary station) that polls a secondary station having a low utilization rate. There was a method of reducing the frequency to reduce the overhead due to empty polling.

【０００３】[0003]

【発明が解決しようとする課題】しかし、上記従来技術
では、１次局に対して多数の２次局がある場合は考慮さ
れているが、２次局が少数の場合については考慮されて
いないため、ポーリング頻度を少なくしている時に、２
次局で送信するデータが発生してもすぐに送信すること
ができない事があるという問題があった。However, in the above prior art, the case where there are a large number of secondary stations with respect to the primary station is taken into consideration, but the case where the number of secondary stations is small is not taken into consideration. Therefore, when the polling frequency is low, 2
There was a problem that even if there was data to be transmitted at the next station, it could not be transmitted immediately.

【０００４】本発明の目的は、空ポーリングによるオー
バヘッドを減らし２次局から送信するデータが発生した
場合すぐにデータを送信できるようにしてシステム全体
の処理効率を向上させる。An object of the present invention is to reduce the overhead due to empty polling so that the data can be transmitted immediately when the data to be transmitted from the secondary station occurs, thereby improving the processing efficiency of the entire system.

【０００５】[0005]

【課題を解決するための手段】上記目的は２次局でポー
リングシーケンスを受信した時、一定時間インターバル
をとることにより達成される。The above object is achieved by taking a fixed time interval when the secondary station receives the polling sequence.

【０００６】[0006]

【作用】本発明のポーリング処理方式は、１次局側から
のポーリングに対して２次局側で送信するデータがない
場合、２次局側で指定時間インターバルをおいた後、１
次局に応答を送信することによって、空ポーリングの連
続によるオーバヘッドを軽減させる。また２次局でデー
タが発生した場合、データをすぐに送信することができ
る。According to the polling processing method of the present invention, when there is no data to be transmitted on the secondary station side in response to the polling from the primary station side, after a designated time interval is set on the secondary station side, 1
By sending a response to the next station, the overhead due to continuous empty polling is reduced. Further, when data is generated in the secondary station, the data can be transmitted immediately.

【０００７】[0007]

【実施例】以下、本発明の１実施例を、図面を参照して
説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

【０００８】図１は、本発明によるオンラインシステム
の１構成例である。１次局１０は２次局１２に接続さ
れ、１次局１０と２次局１２との間でポーリングが行わ
れている。１次局１０は１次局側ポーリング回路１１に
よって制御され、２次局１２は２次局側ポーリング回路
１３によって制御されている。図２は２次局で送信する
データがない場合のポーリングシーケンス例である。図
３は２次局で送信するデータがある場合のポーリングシ
ーケンス例である。図４はインターバル中に送信するデ
ータが発生した場合のポーリングシーケンス例である。
本実施例ではＨＤＬＣ手順を使用している。FIG. 1 shows an example of the configuration of an online system according to the present invention. The primary station 10 is connected to the secondary station 12, and polling is performed between the primary station 10 and the secondary station 12. The primary station 10 is controlled by the primary station side polling circuit 11, and the secondary station 12 is controlled by the secondary station side polling circuit 13. FIG. 2 shows an example of a polling sequence when there is no data to be transmitted by the secondary station. FIG. 3 is an example of a polling sequence when there is data to be transmitted by the secondary station. FIG. 4 shows an example of a polling sequence when data to be transmitted occurs during the interval.
The HDLC procedure is used in this example.

【０００９】１次局１０は２次局１２に対してRR.Pの送
信を行い、２次局１２からの応答を待つ。もし２次局１
２で送信するデータがない場合は指定された時間インタ
ーバルをおいてから１次局１０に対してRR.Fを返す。
（図２）RR.Pを受信した時に送信するデータがある場合
はすぐに送信を行う。（図３）またインターバルをおい
ている間に送信するデータが２次局側で発生した場合は
インターバルをおくのを中止してすぐにデータを送信す
る。（図４） 本実施例によればインターバルをおくことによって、空
ポーリングの連続によるオーバヘッドを軽減させる事が
出来る。また２次局で送信するデータが発生した場合す
ぐに送信することができ、システム全体の処理効率を向
上することが出来る。The primary station 10 transmits RR.P to the secondary station 12 and waits for a response from the secondary station 12. If the secondary station 1
If there is no data to be transmitted in 2, the RR.F is returned to the primary station 10 after a designated time interval.
(Fig. 2) If there is data to be sent when RR.P is received, it will be sent immediately. (FIG. 3) If data to be transmitted occurs on the secondary station side during the interval, the interval is stopped and the data is immediately transmitted. (FIG. 4) According to the present embodiment, by setting an interval, it is possible to reduce the overhead due to continuous empty polling. Further, when data to be transmitted is generated in the secondary station, it can be transmitted immediately, and the processing efficiency of the entire system can be improved.

【００１０】以上の説明では、ＨＤＬＣ手順を例に述べ
たが、本方式は、これに限定されるものではなく、他の
手順であってもポーリング方式を使用する手順であれば
利用可能である。In the above description, the HDLC procedure has been described as an example, but the present method is not limited to this, and any other procedure can be used as long as the procedure uses the polling method. .

【００１１】[0011]

【発明の効果】本発明によれば、ポーリング終了後にイ
ンターバルをおくことで空ポーリングの連続によるオー
バヘッドを軽減させ、当該回線の処理に専有されること
なく他の回線の処理を行い処理効率を向上させる事がで
きる。According to the present invention, by setting an interval after the end of polling, the overhead due to continuous empty polling is reduced, and the processing efficiency is improved by processing other lines without being dedicated to the processing of the line concerned. You can let me do it.

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

【図１】本発明によるオンラインシステムの構成例。FIG. 1 is a configuration example of an online system according to the present invention.

【図２】２次局で送信するデータがない場合のポーリン
グ例。FIG. 2 is an example of polling when there is no data to be transmitted by the secondary station.

【図３】２次局で送信するデータがある場合のポーリン
グ例。FIG. 3 is an example of polling when there is data to be transmitted by the secondary station.

【図４】インターバル中に送信するデータが発生した場
合のポーリング例。FIG. 4 is an example of polling when data to be transmitted occurs during an interval.

【符号の説明】[Explanation of symbols]

１０…１次局、 １１…１次局側ポーリング回路、
１２…２次局、１３…２次局側ポーリング回路。10 ... Primary station, 11 ... Primary station side polling circuit,
12 ... Secondary station, 13 ... Secondary station side polling circuit.

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】１次局（メッセージの送受信を制御する
局）から２次局（１次局によって制御される従属的な
局）に対して行われるポーリングで、２次局側がポーリ
ングされてから応答を返すまでの間に２次局でインター
バルをおくことを特徴としたポーリング処理方式。1. Polling performed from a primary station (station controlling message transmission / reception) to a secondary station (subordinate station controlled by the primary station) after polling the secondary station side. A polling processing method characterized in that the secondary station sets an interval before returning a response.
JP7030452A 1995-02-20 1995-02-20 Polling processing system Pending JPH08223248A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7030452A JPH08223248A (en) 1995-02-20 1995-02-20 Polling processing system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7030452A JPH08223248A (en) 1995-02-20 1995-02-20 Polling processing system

Publications (1)

Publication Number Publication Date
JPH08223248A true JPH08223248A (en) 1996-08-30

Family

ID=12304310

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7030452A Pending JPH08223248A (en) 1995-02-20 1995-02-20 Polling processing system

Country Status (1)

Country Link
JP (1) JPH08223248A (en)

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