Method and apparatus for positioning reliability weak links of intelligent electric energy meter

A technology of smart energy meters and weak links, applied in the direction of measuring devices, measuring electrical variables, instruments, etc., can solve problems such as major faults, affecting user satisfaction and brand reputation

Inactive Publication Date: 2019-11-05
STATE GRID CHONGQING ELECTRIC POWER CO ELECTRIC POWER RES INST +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This will lead to a large number of failures after the smart energ...

Method used

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  • Method and apparatus for positioning reliability weak links of intelligent electric energy meter
  • Method and apparatus for positioning reliability weak links of intelligent electric energy meter
  • Method and apparatus for positioning reliability weak links of intelligent electric energy meter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0153] During this test, the tested product had 5 faults, and the faults are shown in the table below:

[0154] Fault Summary Table

[0155]

[0156] Quickly locate weak points:

[0157] Fault 1:

[0158] Fault phenomenon: the 5th cycle of the comprehensive environmental stress test of the smart energy meter, the temperature rises to 85°C, the vibration is 55g, the smart energy meter, serial number: 180180101107, 485 communication is abnormal, the success rate of 100 communications is 0, power off and restart the system , the fault persists.

[0159] Weak link positioning analysis: Thermistor (model: MZ11-06E151~251RM / 10D391) internal fracture of welding leg.

[0160] Suggestions for improvement: Dispensing glue to stabilize the soldering feet of the thermistor.

[0161] Fault 2:

[0162] Fault phenomenon: After the comprehensive environmental stress test of the smart energy meter, the smart energy meter, serial number: 180180101107, the LCD backlight display does not ...

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PUM

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Abstract

The invention provides a method and apparatus for quickly positioning reliability weak links of an intelligent electric energy meter. The apparatus comprises a temperature stepping test module, a vibration stepping test module, a temperature cycling test module and an environmental stress test module. The specific method is as follows: 1) performing a temperature stepping test on the intelligent electric energy meter to be tested to determine a temperature weak link of the intelligent electric energy meter; performing a vibration stepping test on the intelligent electric energy meter to be tested to determine a vibration weak link of the intelligent electric energy meter; and 2) performing a temperature cycling test on the intelligent electric energy meter to determine a temperature weak link of the intelligent electric energy meter; and performing an environmental stress test on the intelligent electric energy meter to determine an environment weak link of the intelligent electric energy meter. The weak links of the intelligent electric energy meter are positioned, and the stability of the intelligent electric energy meter is improved.

Description

technical field [0001] The invention relates to the technical field of intelligent electric energy meter detection, in particular to a method for locating the weak links in the reliability of the intelligent electric energy meter. Background technique [0002] Existing smart energy meters do not have special weak link rapid location tests. Generally, when relevant functional performance testing and related development tests are carried out in the development stage of smart energy meters, some weak links may be exposed. However, since the purpose of this detection or test is not to determine the weak links of the smart energy meter, the number of weak links that can be exposed is limited. This will lead to a large number of failures after the smart energy meter is put into use, affecting user satisfaction and brand reputation. Contents of the invention [0003] One of the purposes of the present invention is to provide a method for quickly locating weak links in the reliab...

Claims

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Application Information

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IPC IPC(8): G01R35/04
CPCG01R35/04
Inventor 杨芾藜郑可张晓勇刘型志宫林
Owner STATE GRID CHONGQING ELECTRIC POWER CO ELECTRIC POWER RES INST
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