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Data collection and transmission method in distributed measurement and control system

A technology of data collection, measurement and control system, applied in the field of communication, can solve the problems of long polling period and low overall efficiency of group data transmission, and achieve the effect of saving cost, shortening polling period, and improving data communication efficiency.

Inactive Publication Date: 2018-09-28
HOLUX TECH
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  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of the existing technology is that the polling period is long and the overall efficiency of group data transmission is low

Method used

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  • Data collection and transmission method in distributed measurement and control system
  • Data collection and transmission method in distributed measurement and control system
  • Data collection and transmission method in distributed measurement and control system

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Embodiment

[0036] refer to Figure 1-6 , a data collection and transmission method in a distributed measurement and control system, comprising the following steps:

[0037] S1: Add a data collection module to the front-end and back-end data transceivers, and use the data collection module to obtain data from each data supply end in advance, actively, and orderly, and buffer them. After the data collection is completed, when the data demand end requests the data of each data supply end in a polling manner, the back-end data transceiver will fetch the ready-made data from the buffer and give a response as fast as possible;

[0038] S2: Three relatively independent and parallel data communication subsystems are formed between the data supply end and the front-end data transceiver, between the front-end and back-end data transceivers, and between the data demand end and the back-end data transceiver;

[0039] S3: In the communication subsystem between the data supply end and the front-end d...

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Abstract

The invention discloses a data collection and transmission method in a distributed measurement and control system. The method comprises the following steps that S1, data collection modules are additionally arranged in a front-end data transceiver and a rear-end data transceiver, data is actively and orderly acquired from each data supply end in advance through the data collection modules and the data is buffered, before a data demand end requests the data, the required data is collected, and when the data demand end requests the data of each data supply end in a polling mode, the rear-end datatransceiver takes out the existing data from a buffer area and gives a response as fast as possible; and S2, three data communication subsystems are formed between the data supply ends and the front-end data transceiver, between the front-end data transceiver and the rear-end data transceiver and between the data demand end and the rear-end data transceiver. According to the method, the polling period in the distributed measurement and control system is greatly shortened, the overall efficiency of group data transmission is improved, and wired communication can be rapidly changed into wireless communication at low cost.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a data collection and transmission method in a distributed measurement and control system. Background technique [0002] In the distributed measurement and control system, the host computer exchanges data with the modules distributed at each measurement point through the bus to achieve the purpose of remote measurement and control. The distributed measurement and control system is mainly composed of a distributed host and various measurement and control sub-stations. The distributed host is mainly used to manage each sub-station, and the sub-stations complete data collection and control. For the data acquisition-based system, the measurement and control sub-station or the front-end measurement module is the data supply end, and the distributed host or its upper computer is the data demand end. Between the data supply end and the data demand end, one or more stages of data...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/403H04L12/911H04L12/26
CPCH04L12/403H04L43/10H04L47/822
Inventor 王炳华游政
Owner HOLUX TECH
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