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Integrated high-reliability and high-precision long-term monitoring system

A monitoring system, high-precision technology, applied in general control systems, control/regulation systems, instruments, etc., can solve problems such as complex composition of system equipment, low precision, and insufficient long-term reliability, so as to reduce system complexity and equipment Composition, improve the effect of continuous working time

Active Publication Date: 2017-02-08
BEIJING INST OF ASTRONAUTICAL SYST ENG +1
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Problems solved by technology

[0003] The purpose of the present invention is to overcome the above-mentioned defects of the prior art, and provide an integrated high-reliability and high-precision long-term monitoring system, through the improvement and innovation of traditional data collection, encoding, transmission, and demodulation processing methods, based on the serial communication interface and industrial Ethernet, which solves the problems of complex composition of system equipment, low precision and insufficient long-term reliability, and realizes the functions of high reliability, high precision and long-term monitoring of the system

Method used

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  • Integrated high-reliability and high-precision long-term monitoring system

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Embodiment 1

[0075] 1. System topology design

[0076] The long-term monitoring system is mainly composed of sensors / converters, converter acquisition and editing units, integrated controllers, remote monitoring computers and switches. figure 1 The technical application block diagram is given.

[0077] The sensor is responsible for converting the temperature, pressure, concentration, flow and other physical quantities of the measured environment into a 0-5V analog voltage signal and outputting it to the collection terminal.

[0078] The converter acquisition unit provides ±15V and +5V power supplies, is responsible for the power supply of the sensor, collects the analog voltage output by the sensor and converts it into a digital signal, and receives serial data from other field devices, and packs all the acquired data information into a specific frame format , And send to two integrated controllers with dual redundant serial communication interface.

[0079] The integrated controller executes the ...

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Abstract

The invention relates to an integrated high-reliability and high-precision long-term monitoring system which comprises the components of two alternate acquiring-and-coding units, two integrated controllers, a switch, two monitoring computers, a plurality of first sensors and a plurality of second sensors. According to the integrated high-reliability and high-precision long-term monitoring system, through improvement and innovation of a traditional data acquisition, coding, transmission and demodulation processing method, based on a serial communication interface and an industrial Ethernet, problems of complicated system equipment structure, low precision and insufficient long-term reliability are settled, and advantages of high reliability, high precision and long-term monitoring are realized. According to the integrated high-reliability and high-precision long-term monitoring system, in an integration aspect, integrated design is performed on key equipment of the system, number of equipment components is reduced and system complexity is reduced; in a transmission real-time performance aspect, data transmission is finished based on a serial bus and the Ethernet, thereby ensuring no performance reduction in actual use caused by transmission delay time; and in a long-term reliability aspect, through utilizing a redundancy design and other reliability design measures on the key equipment, continuous operation time of the product is prolonged.

Description

Technical field [0001] The invention relates to an integrated high-reliability and high-precision long-term monitoring system, belonging to the technical field of monitoring and monitoring, and applied to real-time monitoring and alarming in the industrial field. Background technique [0002] Fieldbus provides an effective information channel for field-level equipment, environmental information and control management equipment in the production process, and is an important component of industrial data communication networks. There are as many as dozens of fieldbus standards commonly used internationally. According to the characteristics of the application field, each type of bus is not suitable for all industrial field applications. However, for industrial fields (such as water conservancy, mine monitoring, etc.) that need to achieve long-term monitoring of field equipment operating conditions and environmental data, each terminal device (including sensors) is equipped with a pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/042
CPCG05B19/0428G05B2219/25314
Inventor 王锋李皓伟冯敏洁章思严万端华厉力连彦泽韩洁耿胜男张青学王晓君龙骁王颖王宁李薇李铎王丹关咏梅辛海华李亚群彭雪艳魏双成
Owner BEIJING INST OF ASTRONAUTICAL SYST ENG
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