Power line carrier comprehensive testing system and testing method

A power line carrier and comprehensive testing technology, applied in distribution line transmission system, line transmission monitoring/testing, line transmission components, etc., to achieve the effect of simple system platform, multiple detection functions, and low cost

Active Publication Date: 2018-11-06
WAHLAP TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the shortage of limited testing equipment in the prior art, and many testing equipments can only test a single item, the present invention provides a power line carrier comprehensive test with various detection functions, complete carrier test items, simple system platform and low cost System and Test Method

Method used

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  • Power line carrier comprehensive testing system and testing method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] like figure 1 The illustrated embodiment is a power line carrier comprehensive test system, including a first power filter 1, a first artificial power network 2, a first centimeter 3, a first carrier attenuator 4, a spectrum analyzer 5, and a first program-controlled switch 6. The device under test 7, the third centimeter 18, the noise generator 19 and the first cabinet 20; the first artificial power network is electrically connected to the first power filter, the first centimeter and the first program-controlled switch respectively, and the first A program-controlled switch is electrically connected to the device under test, the first carrier attenuator is electrically connected to the first centimeter and the spectrum analyzer respectively, and the third centimeter is electrically connected to the first artificial power network, the first centimeter and the noise generator respectively; Both the first centimeter and the third centimeter are two-in-one centimeters; the...

Embodiment 2

[0059] Embodiment 2 includes all the structures in Embodiment 1, and Embodiment 2 also includes a second power filter 8, a second artificial power network 9, a second centimeter 10, a second carrier attenuator 11, and a second programmable switch 12 , resistance load 13, copy controller 14, ammeter 15, oscilloscope and second cabinet machine 21; The second artificial power supply network is electrically connected with the second power supply filter, the second centimeter and the first program-controlled switch respectively, and the second program-controlled switch It is electrically connected with the copy controller and the electric meter respectively, the second carrier attenuator is electrically connected with the second centimeter and the first dichotomer respectively, and the second centimeter is electrically connected with the resistive load; the second centimeter is a two-in-one centimeter ; The second carrier attenuator is a program-controlled attenuator; the second pow...

Embodiment 3

[0070] Embodiment 3 includes all the structures of Embodiment 1 and Embodiment 2. Embodiment 3 also includes a third program-controlled switch 16 and a carrier load 17; connection; the third program-controlled switch and the carrier load are located in the first cabinet.

[0071] A method for testing the carrier load capacity of a power line carrier comprehensive test system, the specific steps are as follows: setting the multiple of the program-controlled attenuator, setting the carrier load, and opening the third program-controlled switch; the carrier load continuously sends read and write commands, and the spectrum analyzer is turned on. Set the resolution of the peak detector of the spectrum analyzer to 200Hz; find the center frequency and level value corresponding to the highest point of the peak in the carrier frequency band.

[0072] A test method for the durability of a power line carrier comprehensive test system, which also includes a multi-channel temperature inspec...

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PUM

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Abstract

The invention discloses a power line carrier comprehensive testing system and testing method. The testing system comprises a first power supply filter, a second manual power supply network, a first power divider, a first carrier attenuator, a spectrometer, a first program-controlled switch, a second power supply filter, a second manual power supply network, a second power divider, a second carrierattenuator, a second program-controlled switch, a resistor load, a copy controller and an ammeter; the first manual power supply network is electrically separately connected the first power supply filter, the first power divider and the first program-controlled switch; the first carrier attenuator is electrically separately connected with the first power divider and the spectrometer; the second manual power supply network is electrically separately connected with the second power supply filter, the second power divider and the first program-controlled switch; the second carrier attenuator iselectrically separately connected with the second power divider and a first riffle, and the second power divider is electrically connected with the resistor load. The testing system disclosed by the invention has the advantages of being simple in platform, low in cost, capable of realizing multiple carrier testing projects and multiple in detection functions.

Description

technical field [0001] The invention relates to the technical field of power line carrier testing, in particular to a power line carrier comprehensive testing system and testing method with various detection functions, complete carrier testing items, simple system platform and low cost. Background technique [0002] At present, there are many implementation schemes for carrier communication technology, and the carrier signal modulation method, center frequency point, routing protocol and signal coupling method are different. While each technology has its unique advantages, it also has its disadvantages. As far as domestic products are concerned, they have entered the era of diversification, and the performance of carrier communication modules of various manufacturers is different. The performance indicators of meter reading products provided by manufacturers usually meet the standards. However, due to the limited test equipment, many test equipment can only be tested for a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B3/46H04B3/54
CPCH04B3/46H04B3/54
Inventor 张日取陈超
Owner WAHLAP TECH CO LTD
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