Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Method and device for testing network cable failure

A fault testing and cable technology, which is applied in the direction of fault location, selection device, electrical components, etc., to achieve the effect of high test resolution, high cost performance and simple operation

Inactive Publication Date: 2010-02-03
UNIV OF ELECTRONICS SCI & TECH OF CHINA
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the current network cables mostly use Category 5 or Super Category 5 cables, and the transmission signals are groundless differential signals.
However, the transmission pulse used by the pulse reflection method is a narrow pulse signal referenced to the ground, so it is not suitable to use the pulse reflection method based on a narrow pulse to test the length of network cables.

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
  • Method and device for testing network cable failure
  • Method and device for testing network cable failure
  • Method and device for testing network cable failure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] The present invention is further described in detail below by way of examples, but does not limit the scope of the present invention in any way.

[0037] The detection pulse width can be selected according to the required test range for the generation and transmission of the detection pulse. If the detection pulse width is unreasonable, the transmission pulse and the reflected echo will not form a superposition, which will increase the difficulty of detection, and it is impossible to distinguish whether it is a short circuit. Fault or short circuit fault. The formation of the detection pulse (completed by a high-speed timer) is recommended to use a high-performance programmable logic device (FPGA) to ensure the steep rising edge characteristics of the detection pulse. Use a high-speed single-ended-differential converter to convert the single-ended detection pulse into a differential detection pulse, and then send it to the cable under test after being driven by a high-s...

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 utility model provides a fault testing proposal over network cables. Wider differential detection pulses are sent out from a testing end. When encountering a break point on the cable, the detection pulses are reflected, and the reflected pulses are transmitted back to the sending end along the cable. The sending signal and the reflected signal are mutually superposed, and the time interval between the sending and reflected signals is calculated by measuring the time width of the superposed part; then the position and cause of the failure can be analyzed out. The proposal in the utility model also provides a relevant network cable tester. Four pairs of twisted network cables can be tested just by connecting any end of the network cable with the tester. The tester in the utility model has advantages of simple operation, high resolution and negligible environmental impact. Beside application in network cable fault testing, the testing proposal and device in the utility model can be also used in coaxial cable fault testing.

Description

technical field [0001] The invention relates to the field of network cable testing, in particular to a technical method capable of effectively testing the length of network cables and a device thereof. Background technique [0002] With the development and popularization of computer networks, network security is particularly important for various industries. However, failures of some networks due to design reasons or improper maintenance often bring huge economic losses and catastrophic consequences. Among them, faults caused by network cables account for a large part. Damage or misconnection of network cables will lead to data transmission confusion and network failure, which seriously affects the use and safety of computer communication networks. [0003] The network cable tester can verify the twisted pair. It can measure the length of the twisted pair, find the location and reason of the breakpoint, and test the wiring diagram (short circuit, open circuit) of the netwo...

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): H04Q1/20G01R31/08
Inventor 王厚军田书林肖寅东刘科李飞雄
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com