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

Impedance adaptive matching method and device for long-distance communication lines

An adaptive matching and communication line technology, which is applied in the direction of line transmission components, gearbox control/balance, etc., can solve the problems of difficult manual impedance adjustment, and achieve the effect of eliminating operational complexity, improving debugging, and improving communication quality

Active Publication Date: 2021-01-15
GREE ELECTRIC APPLIANCES INC
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problem that manual adjustment of impedance is difficult in the prior art, the present invention proposes an impedance adaptive matching method and device for long-distance communication lines

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
  • Impedance adaptive matching method and device for long-distance communication lines
  • Impedance adaptive matching method and device for long-distance communication lines
  • Impedance adaptive matching method and device for long-distance communication lines

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] The principles and embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0027] like figure 1 , figure 2 As shown, the impedance adaptive matching device of the communication line of the present invention is connected in parallel with the communication line between two communication devices. The communication lines referred to in the present invention are all differential communication lines, such as buses, network cables, etc., differential The communication line usually has at least two signal lines, that is, the impedance adaptive matching device is respectively connected to the two signal lines in parallel to obtain the voltage signal of the communication line. Specifically, the device specifically includes an adjustment unit, a detection unit and a control unit. figure 2 What is shown is a specific embodiment of the device, wherein the adjusting unit adopts a digitally controlled potentiometer, a...

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 discloses an impedance self-adaptive matching method and device for a long-distance communication line. The impedance self-adaptive matching method of the communication line comprises the following steps: endowing two ends of the communication line with an initial resistance value; detecting signal change data of the communication line, and comparing the signal change data with preset data; and adjusting the resistance value of the communication line according to a comparison result until the signal change data is consistent with qualified data in preset data. According to the invention, the matching impedance of the communication line can be automatically adjusted, the debugging process is simplified, and the debugging efficiency is improved.

Description

technical field [0001] The invention relates to an impedance self-adaptive matching method and device for communication lines. Background technique [0002] With the rapid development of electrical equipment, there are more and more communications between electrical equipment, and the distance is getting longer and longer. The extension of the communication distance will easily cause the signal distortion of the communication line to be seriously distorted, and the quality of communication will decline. In order to ensure the quality of communication, it is necessary to adjust the two The matching resistance of the terminal reduces signal distortion. [0003] At present, the on-site installation personnel generally adjust the matching resistance value manually to debug the signal quality, but due to the complex environment of the project site, it is impossible to calculate the best matching resistance value through an effective mathematical model, and the manual adjustment o...

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): H04B3/04
CPCH04B3/04
Inventor 莫飞凡牟桂贤申伟刚
Owner GREE ELECTRIC APPLIANCES INC