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High-reliability multi-type electric power front-end temperature acquisition device and system

A collection device and multi-type technology, applied in the field of high-reliability multi-type power front-end temperature collection devices and systems, can solve the problems of lack of anti-interference function, inability to meet temperature measurement requirements, single signal type, etc., and achieve large time and cost. Advantages, the effect of ensuring highly reliable operation and strong anti-interference characteristics

Pending Publication Date: 2022-05-13
ZHEJIANG SUPCON TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a highly reliable and multi-type power front-end temperature acquisition device and system, which solves the problem that the signal types collected by the existing signal acquisition device are relatively single and cannot meet the requirements of more complex measurements. temperature requirements and does not have a good anti-interference function of the technical problem

Method used

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  • High-reliability multi-type electric power front-end temperature acquisition device and system
  • High-reliability multi-type electric power front-end temperature acquisition device and system
  • High-reliability multi-type electric power front-end temperature acquisition device and system

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Embodiment Construction

[0048] In order to better explain the present invention and facilitate understanding, the present invention will be described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0049] Such as figure 1 As shown, a high-reliability multi-type power front-end temperature acquisition device proposed by the embodiment of the present invention includes: a power supply and a system-side circuit and a field-side circuit connected to the power supply. The circuit is powered by the circuit on the field side, and the circuit on the system side is connected to the circuit on the field side; the circuit on the field side is used to control the conduction of the signal acquisition channel corresponding to each detection signal according to the signal detection information, and preprocess the detection signal. The preprocessed detection signal and the precision resistance signal provided by the field side circuit are sent to the system side circuit;...

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Abstract

The invention relates to a high-reliability multi-type electric power front-end temperature acquisition device and system.The device comprises a power supply, a system side circuit and a field side circuit, the system side circuit and the field side circuit are connected with the power supply, and the power supply supplies power to the system side circuit and the field side circuit after being subjected to voltage transformation and isolation; the system side circuit and the field side circuit are in communication connection; the field side circuit is used for controlling signal acquisition channels corresponding to detection signals to be conducted according to signal detection information, preprocessing the detection signals, and sending the preprocessed detection signals and precision resistance signals provided by the interior of the field side circuit to the system side circuit; and the system side circuit is used for comparing and processing the processed detection signal with the precision resistance signal to obtain a field temperature value to be detected. According to the invention, multiple types of signals such as millivolt signals, resistance signals, thermocouples and thermal resistors can be configured, and the anti-interference characteristic is very good.

Description

technical field [0001] The invention relates to the technical field of automation and instrumentation, in particular to a highly reliable multi-type power front-end temperature acquisition device and system. Background technique [0002] In the field of industrial control, the power front-end signal acquisition device is an important module of the input signal of the field control station, and the type of signal it can collect and the reliability of the device are very important. Domestic medium and large thermal power plants usually adopt a centralized control system, but the on-site signals are relatively scattered. In practical applications, there are often too many temperature analog signal collection points and the cost is huge. [0003] Signal acquisition devices are often used to collect signals from temperature sensors in production sites and public works. Currently, analog signal input devices can collect signals of a single type, which cannot meet complex temperatu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/042G01K7/02
CPCG05B19/0423G01K7/021G01K2219/00G01K2215/00G05B2219/24215
Inventor 许祥杰翁佳炳董丹娜贺挺挺
Owner ZHEJIANG SUPCON TECH
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