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Power line carrier comprehensive test system and test method

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

Active Publication Date: 2021-07-20
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 test system and test method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Such as 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; ...

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 within 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 in...

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Abstract

The invention discloses a power line carrier comprehensive test system and a test method, including a first power filter, a first artificial power network, a first centimeter, a first carrier attenuator, a spectrum analyzer, a first program-controlled switch, and a second power supply filter, the second artificial power network, the second centimeter, the second carrier attenuator, the second program-controlled switch, resistive load, copy controller and ammeter; the first artificial power network is connected with the first power filter and the first centimeter respectively The device is electrically connected with the first program-controlled switch, and the first carrier attenuator is electrically connected with the first centimeter and the spectrum analyzer respectively; 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 , the second carrier attenuator is electrically connected to the second divider and the first divider respectively, and the second divider is electrically connected to the resistive load. The invention has the following beneficial effects: the system platform of the invention is simple and the cost is low; various carrier test items can be realized and the detection functions are many.

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 Patents(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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