JPH0646478A - Commumication control system - Google Patents

Abstract

PURPOSE:To conduct the simplification of processing and the reduction of processing time by limiting control information to be generated only to one kind of control code when plural device groups to be controlled are controlled by one controller. CONSTITUTION:The controller (a) inputs a control origin signal from a control origin signal input part 6, and generates the control information at a control information generating part C based on the control origin signal. At this time, the controller (a) generates only one kind of control code, and attaches the addresses of the devices h 1-hn to be controlled at an address attaching part (e), and transmits them to the device group (g) to be controlled as the control information. The devices h 1-hn to be controlled judge the feasibility of the control information to be received from the controller (a) by an address detecting part 1, and receive the information by a control information receiving part (j) when it is feasible, and a control information analysis part (m) analyzes a control content expected by the controller (a) from the control code in received control information, and a control execution part K executes the control of the devices h 1-hn to be controlled.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a communication control system, and more particularly to a communication control system between a control device and a controlled device.

[0002]

2. Description of the Related Art In a conventional communication control system, as shown in FIG. 3, a control device A has a control decrease signal information input section b for inputting a control decrease signal, a control data S storage section 2, a control information creating section c, It is configured to have a control information transmitting unit d, an address adding unit e, and a control completion signal receiving unit f.

Each of the controlled devices H1 to Hn has an address detecting section i for detecting the address of the control information from the control apparatus A, a control information receiving section j for receiving the control information, and a control information receiving buffer for holding the received control information. t, a control execution unit k, and a control completion signal transmission unit l.

Here, the control device A obtains control information for the input control source signal from the control data storage unit S by the number of the controlled device groups G, and as shown in FIG.
Control information including an address that determines Hn to Hn and control data is created and transmitted to the controlled device group G.

Each of the controlled devices H1 to Hn receives only the control information to be received through the address detecting section i, holds the received control information in the control reception buffer t, and based on this, the controlled device group G Then, each control is executed and the control execution is ended. The controller A requests the controlled device group G for a control completion signal in order to recognize the control execution state, and the controlled device group G transmits the control completion signal to the controller A in response to this request.

[0006]

In this conventional communication control method, when the control device A transmits control information to a plurality of controlled device groups G, the control information to be transmitted is the address and control as shown in FIG. Since the data format is arranged in the order of data, there is a drawback that it takes time to control the controlled device group G when the controlled device group G is large or the control data is long.

[0007]

A communication control system of the present invention is a communication control system comprising a plurality of controlled device groups controlled by control information from one control device,
The control device comprises control source signal input means, control information creating means, control information transmitting means, and control completion signal receiving means from the controlled device, and the controlled device receives control information from the control device. The control device includes a control information analysis unit, a control information processing unit, and a control completion signal transmission unit. The control device transmits one type of the coded control information to a plurality of controlled devices, and the controlled device includes the control device. The contents of the control information transmitted from the device is analyzed to execute each control, and when the control device requests a control completion signal, the control completion is transmitted to the control device. The feature is that the execution state of control of the device group is recognized.

[0008]

The present invention will be described below with reference to the drawings. FIG. 1 is a block diagram of an embodiment of the present invention.

In this embodiment, a control source signal input section b, a control information creating section c for creating control information, an address adding section e for adding an address, a control information sending section d for sending the created control information, and a control target. A control device a including a control completion signal reception unit f from the control device group g, a control information reception unit j that receives control information from the control device a, an address detection unit i that detects an address, and a transmitted control code. Control code analyzing unit m, control execution data storage unit r, control execution unit k
And a controlled device group g including a control completion signal transmission unit l.

Next, the operation of this embodiment will be described. The control device a receives the control source signal from the control source signal input section b, and creates control information having a frame structure as shown in FIG. 2 in the control information creating section c based on the control source signal. At this time, the control device a creates only one type of control code, and the address adding unit e adds to this control code each of the controlled devices h1 to h1.
The hn address is added and the control information is transmitted to the controlled device group g.

Each of the controlled devices h1 to hn judges whether or not the control information from the control device a should be received by the address detection unit i, and if the control information is received, the control information receiving unit j receives the control information. From the control code in the control information received by the information analysis unit m, the control content expected by the control device a is analyzed,
Based on the sequence of acquisition and creation of the control execution data based on the analysis result from the control execution data storage unit r which stores the control execution data corresponding to the control code in advance, the control execution unit k controls each controlled device h1. ~ Hn control is executed.

When the execution of the control is completed, the control completion signal transmitting unit 1 transmits the control completion signal to notify the completion of the control when the control device a requests the completion of the control. The control device a receives the control completion signal from the controlled device group g by the control completion signal transmission unit f, and recognizes whether or not the controlled device group g is correctly controlled by the transmitted control information.

[0013]

As described above, according to the present invention, when one control device controls a plurality of controlled device groups, only one type of control code is required for the control information created by the control device. Therefore, there is an effect that the processing of the control device can be simplified and the processing time can be shortened.

[Brief description of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention.

FIG. 2 is a diagram showing a structure of control information according to the present embodiment.

FIG. 3 is a block diagram of an example of a conventional communication control method.

FIG. 4 is a diagram showing a structure of control information in a conventional example.

[Explanation of symbols]

 a control device b control source signal input unit c control information creation unit d control information transmission unit e address addition unit f control completion signal reception unit g controlled device group h1 to hn controlled device i address detection unit j control information reception unit k Control execution unit l Control completion signal transmission unit m Control code analysis unit n Control execution data no Control execution data op Control execution data pq Control execution data qr, s Control execution data storage unit t Control data reception buffer

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁵ Identification number Reference number within the agency FI Technical indication location H04Q 9/14 K 7170-5K (72) Inventor Hiromitsu Watanabe 2 Raijin, Yoshioka character, Yamato-cho, Kurokawa-gun, Miyagi prefecture Address Miyagi NEC Corporation

Claims (1)

[Claims] 1. A communication control system comprising a plurality of controlled devices controlled by control information from one control device, wherein the control device comprises a control source signal input means, a control information creation means, and a control information transmission. Means, and a control completion signal receiving means from the controlled device, the controlled device receiving control information from the control device, control information analysis means,
The control device includes a control information processing unit and a control completion signal transmitting unit, the control device transmits one type of the coded control information to a plurality of controlled devices, and the controlled device transmits the control information. The contents of the control information is analyzed to execute each control, and when the control completion signal is requested from the control device, the control completion is transmitted to the control device,
A communication control method, wherein the control device recognizes a control execution state of a controlled device group.