CN-122017541-A - Relay action time measurement and test result automatic verification method and device

CN122017541ACN 122017541 ACN122017541 ACN 122017541ACN-122017541-A

Abstract

The invention discloses a relay action time measurement and test result automatic verification method and device, relating to the technical field of electrical test, wherein the method comprises the following steps of determining the type and key parameters of a relay to be tested and configuring the input trigger condition of the relay to be tested; the method comprises the steps of carrying out multichannel synchronous acquisition on an input trigger signal, an output state voltage and a mechanical contact state of a relay, carrying out timestamp correction and preprocessing on the acquired signals to obtain multi-feature action time information, and calculating the action time of the relay based on the multi-feature action time information. According to the invention, the input trigger signal, the output state voltage, the output state current and the mechanical contact state of the relay are synchronously acquired with high precision, and the accurate measurement of the action time in a complex environment is realized by combining the weighted fusion of the multi-characteristic action time information, so that the influence of measurement errors and external interference on the judgment of the action time can be effectively reduced.

Inventors

WANG SHUO
Zhuang Xiongwei
Shao Jiangnan
XU MEI
YANG KAI
CHEN HONGYIN
Lei huan
WANG WEIQIANG
LIU YINYU
JI QUANHONG

Assignees

国网新疆电力有限公司昌吉供电公司

Dates

Publication Date: 20260512
Application Date: 20250908

Claims (10)

1. A relay action time measurement and test result automatic verification method, It is characterized in that the method comprises the steps of, The method comprises the following steps: Step S1, determining the type and key parameters of the relay to be tested, configuring the input trigger condition, Step S2, carrying out multichannel synchronous acquisition on an input trigger signal, an output state voltage, an output state current and a mechanical contact state of the relay, and carrying out timestamp correction and preprocessing on the acquired signals to obtain multi-feature action time information, wherein the steps comprise the following steps: step S21, setting an independent acquisition channel for the input trigger signal, the output state voltage, the output state current and the mechanical contact state of the relay; s22, synchronizing time stamps of acquisition signals of all channels by adopting a unified clock or a trigger mark; s23, carrying out moving average filtering on the acquired signals, and marking sampling points deviating from the average value or exceeding a threshold value as abnormal; step S24, organizing the processed multichannel signals into structured data; Step S25, edge detection and threshold judgment are applied to the acquired signals of each channel to extract the action starting point, the action finishing point and the duration time characteristic; S26, analyzing, identifying and eliminating abnormal features through time difference among channels; step S27, carrying out weighted fusion on the residual features according to the channel weight to generate multi-feature action time information, Step S3, calculating the relay action time based on the multi-feature action time information, and obtaining stable relay action time through cross verification and exception handling, wherein the method comprises the following steps: Step S31, performing weighted fusion calculation on the multi-feature action time information generated in the step S27 according to the channel feature weight to generate an action time value; s32, identifying and removing abnormal data by adopting a statistical analysis method, and recalculating action time for the residual characteristics; step S33, outputting the relay action time obtained by final calculation in a structured data form, Step S4, establishing a dynamic standard model to dynamically adjust a relay action time judgment standard according to relay action time and real-time environment parameters of the relay, and automatically judging whether the relay is qualified or not, wherein the method comprises the following steps: S41, acquiring real-time environment parameters of the relay through a sensor or a data interface, wherein the real-time environment parameters comprise temperature, voltage and load conditions; step S42, calculating an adjusted relay action time judgment standard according to the relay action time and the environment parameters through a preset judgment rule or a mapping table; step S43, comparing the calculated relay action time with the dynamically adjusted judgment standard feature by feature; step S44, generating a relay pass or fail mark according to the comparison result of the step S43, recording in a data structure form, Step S5, differential analysis is carried out on the batch relay action time data after the judgment is completed, abnormal or deviation relays are identified, the analysis result is fed back to the triggering condition, the judgment rule and the dynamic standard model, The relay identification process comprises the following steps: Step S51, carrying out statistical analysis and differential calculation on the relay action time data of the same batch to identify deviation or abnormal relays; step S52, classifying the identified abnormal relay according to multi-feature comprehensive analysis, And S6, uniformly recording the relay test data, the judging result and the analysis result generated in each step, generating a batch report, supporting historical data tracing, and verifying and recording the whole test and verification process.
2. A relay operation time measurement and test result automatic verification method according to claim 1, It is characterized in that the method comprises the steps of, The step of configuring the input trigger condition in the step S1 includes: step 11, determining the type and key parameters of a relay to be tested, wherein the key parameters comprise rated voltage, rated current and contact type; Step S12, setting the level, pulse width and triggering time sequence of an input triggering signal; and S13, generating a trigger signal configuration table according to the type of the relay to be tested, so that the configured input trigger condition is matched with the subsequent multi-channel synchronous acquisition and relay action time measurement flow.
3. A relay operation time measurement and test result automatic verification method according to claim 2, It is characterized in that the method comprises the steps of, The step S6 of generating the batch report comprises the following steps: Step S61, recording the relay action time and the judging result of each relay and each batch in a structured data table form, and generating a batch report; And step S62, carrying out index and traceability management on the historical data according to the time stamp and the batch number.
4. An automatic checking device for relay action time measurement and test result, Characterized by comprising the following steps: The trigger condition configuration module is used for determining the type and key parameters of the relay to be tested and generating input trigger signal configuration; The multichannel acquisition module is used for synchronously acquiring an input trigger signal, an output state voltage, an output state current and a mechanical contact state of the relay, and performing timestamp correction, filtering and anomaly marking processing; The multi-feature action time processing module is used for extracting action starting points, finishing points and duration time features from the acquired signals and generating multi-feature action time information through fusion among channels; The action time calculation module is used for carrying out weighted fusion calculation based on the multi-feature action time information, eliminating abnormal features and generating stable action time data; the dynamic judgment module is used for adjusting the judgment standard according to the action time and the real-time environment parameter, establishing a dynamic standard model and automatically generating a relay qualification or disqualification mark; the batch analysis module is used for carrying out differential analysis on the action time data of the batch relay, identifying the abnormal relay and feeding back an analysis result to the trigger condition, the judgment rule and the dynamic standard model to form a closed loop; the data recording module is used for uniformly recording relay test data, judgment results and analysis information, generating a batch report and supporting historical data tracing.
5. A relay operation time measurement and test result automatic verification device according to claim 4, It is characterized in that the method comprises the steps of, The multi-channel acquisition module comprises a relay measuring device, The relay measuring device is used for obtaining the input trigger signal, the output state voltage, the output state current and the mechanical contact state of the relay to be measured, The relay measuring device comprises an insulating shell, an electronic switch, an inverter, a battery charging and discharging unit, a central control unit and a parameter measuring unit are arranged in the insulating shell, The electronic switch is used for controlling the power-on and power-off of the relay to be tested, The inverter is used for inverting the direct current provided by the battery charging and discharging unit into alternating current, The battery charge-discharge unit is used for providing power supply for the relay measuring device, The central control unit is used for monitoring the state and time of the normally closed/normally open contact of the relay to be tested, The parameter measuring unit is used for detecting the current, the voltage and the contact deflection time of the relay to be detected and obtaining the closed holding power of the relay coil through calculation, The insulating housing is provided with three sets of 5-core aviation plugs.
6. A relay operation time measurement and test result automatic verification device according to claim 5, It is characterized in that the method comprises the steps of, The central control unit adopts a singlechip STM32F103C8T6.
7. A relay operation time measurement and test result automatic verification device according to claim 6, It is characterized in that the method comprises the steps of, The central control unit is connected with the parameter measuring unit, The parameter measuring unit comprises an alternating current voltage control circuit, an alternating current voltage detection circuit, an alternating current voltage control circuit, a direct current voltage detection circuit, a current control circuit, a current detection circuit and a contact feedback signal detection circuit.
8. A relay operation time measurement and test result automatic verification device according to claim 6, It is characterized in that the method comprises the steps of, And a battery voltage detection circuit is also arranged in the insulating shell.
9. A relay operation time measurement and test result automatic verification device according to claim 6, It is characterized in that the method comprises the steps of, The battery charging and discharging unit is provided with a charging protection circuit.
10. A relay operation time measurement and test result automatic verification device according to claim 6, It is characterized in that the method comprises the steps of, And the central control unit is also connected with an alarm circuit.

Description

Relay action time measurement and test result automatic verification method and device Technical Field The invention relates to the technical field of electrical testing, in particular to a relay action time measurement and test result automatic verification method and device. Background Under a complex environment, the conventional relay action time test depends on a single channel or simple signal acquisition mode, lacks a multi-channel synchronization and feature fusion method, is easily affected by noise and interference, and causes inaccurate action time judgment. Therefore, it is necessary to design a method and a device for automatically checking the relay operation time and the test result to solve the above problems. Disclosure of Invention The invention aims to solve the technical problems of the prior art, provides a method and a device for automatically checking the action time measurement and test result of a relay, and aims to solve the problems of inaccurate action time judgment caused by the influence of noise and interference due to lack of a multichannel synchronization and feature fusion means in the prior art. The invention solves the technical problems by adopting the following scheme: a relay action time measurement and test result automatic verification method, The method comprises the following steps: Step S1, determining the type and key parameters of the relay to be tested, configuring the input trigger condition, Step S2, carrying out multichannel synchronous acquisition on an input trigger signal, an output state voltage and a mechanical contact state of the relay, and carrying out timestamp correction and preprocessing on the acquired signals to obtain multi-feature action time information, wherein the method comprises the following steps of: step S21, setting an independent acquisition channel for the input trigger signal, the output state voltage, the output state current and the mechanical contact state of the relay; s22, synchronizing time stamps of acquisition signals of all channels by adopting a unified clock or a trigger mark; s23, carrying out moving average filtering on the acquired signals, and marking sampling points deviating from the average value or exceeding a threshold value as abnormal; step S24, organizing the processed multichannel signals into structured data; Step S25, edge detection and threshold judgment are applied to the acquired signals of each channel to extract the action starting point, the action finishing point and the duration time characteristic; S26, analyzing, identifying and eliminating abnormal features through time difference among channels; step S27, carrying out weighted fusion on the residual features according to the channel weight to generate multi-feature action time information, Step S3, calculating the relay action time based on the multi-feature action time information, and obtaining stable relay action time through cross verification and exception handling, wherein the method comprises the following steps: Step S31, performing weighted fusion calculation on the multi-feature action time information generated in the step S27 according to the channel feature weight to generate an action time value; s32, identifying and removing abnormal data by adopting a statistical analysis method, and recalculating action time for the residual characteristics; step S33, outputting the relay action time obtained by final calculation in a structured data form, Step S4, establishing a dynamic standard model to dynamically adjust a relay action time judgment standard according to relay action time and real-time environment parameters of the relay, and automatically judging whether the relay is qualified or not, wherein the method comprises the following steps: S41, acquiring real-time environment parameters of the relay through a sensor or a data interface, wherein the real-time environment parameters comprise temperature, voltage and load conditions; step S42, calculating an adjusted relay action time judgment standard according to the relay action time and the environment parameters through a preset judgment rule or a mapping table; step S43, comparing the calculated relay action time with the dynamically adjusted judgment standard feature by feature; step S44, generating a relay pass or fail mark according to the comparison result of the step S43, recording in a data structure form, Step S5, differential analysis is carried out on the batch relay action time data after the judgment is completed, abnormal or deviation relays are identified, the analysis result is fed back to the triggering condition, the judgment rule and the dynamic standard model, The relay identification process comprises the following steps: Step S51, carrying out statistical analysis and differential calculation on the relay action time data of the same batch to identify deviation or abnormal relays; step S52, classifying the identified abnormal relay according to multi-featur