Unlock instant, AI-driven research and patent intelligence for your innovation.

An anti-electromagnetic interference analog signal long-distance transmission method

An analog signal and long-distance transmission technology, which is applied in the field of long-distance transmission of analog signals, can solve problems such as jumping and easy distortion, so as to avoid distortion and jumping, eliminate the influence of electromagnetic interference signals, and ensure long-distance transmission Effect

Active Publication Date: 2020-12-22
CHINA YANGTZE POWER
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the existing single analog signal transmission is easy to be distorted and jump phenomenon occurs

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • An anti-electromagnetic interference analog signal long-distance transmission method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] An anti-electromagnetic interference analog signal long-distance transmission method uses two analog signal output channels, the two analog signals are complementary twins, and performs numerical processing of the average value of the received two analog signals. Complementary twins of two-way analog signals, in fact, carry out differential processing on two-way analog signals.

[0016] The analog signal in the present invention not only includes the commonly used current signal of 4-20mA or 0-20mA and the voltage signal of 0-5V, but also continuously changing analog voltage and current signals of other specifications.

[0017] For the 4-20mA analog signal, the two analog signals of the complementary twin refer to the addition of the two analog signals to 20mA;

[0018] For the 0-20mA analog signal, the two analog signals of the complementary twin refer to the addition of the two analog signals to 20mA;

[0019] For 0-5V analog signals, the two analog signals of comple...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to an anti-electromagnetic interference analog quantity signal long-distance transmission method. Two analog quantity signal output channels are employed, two analog quantity signals are complementary with each other, the received two analog quantity signals are subjected to numerical averaging processing, as the two analog quantity signals are complementary with each other,the two analog quantity signals are actually processed differentially. The method is advantaged in that analog quantity signal long-distance transmission is carried out, influence of electromagnetic interference signals in the analog quantity signal transmission process can be obviously eliminated, distortion and jump change of the transmitted analog quantity signals are avoided, and long-distancetransmission of the analog quantity signals is guaranteed.

Description

technical field [0001] The invention provides an anti-electromagnetic interference analog signal long-distance transmission method, which is based on complementary twin dual-channel output signals, adopts a differential method to eliminate external electromagnetic interference, and accurately transmits analog signals. Background technique [0002] At present, the long-distance transmission of analog signals generally adopts two methods: communication and hard wiring. In the communication mode, if there is network congestion in the communication line, packet loss is prone to occur, which seriously affects the transmission quality of the analog signal, and cannot meet the requirements of real-time, accuracy and reliability. The general communication analog signal is not used for field device control; In the ordinary hard-wiring mode, the long-distance transmission of analog signals is easily affected by the electromagnetic interference of the surrounding environment, especiall...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04B15/00H04B15/02H04B3/04G08C19/00
CPCG08C19/00H04B3/04H04B15/00H04B15/02
Inventor 涂勇沈博渊帅小乐杨刚刘欢卢舟鑫
Owner CHINA YANGTZE POWER