Relay health state on-line test system and method under multi-dimensional environmental stress field

Abstract

The invention discloses a relay health state on-line test system under a multi-dimensional environmental stress field. The relay health state on-line test system comprises a cabinet body, a power supply distribution and protection module, a switching power supply module, a to-be-tested sample placement table, a relay health state on-line test device, an environmental parameter monitoring module, an exchange unit, a PC industrial control unit and a photoelectric exchange module, the incoming power distribution and protection module is connected with the switching power supply module, the switching power supply module is respectively connected with the relay health state on-line testing device, the switching unit, the environment parameter monitoring module and the photoelectric switching module, and the PC industrial control unit is connected with the incoming power distribution and protection module. The to-be-tested sample placing table is connected with the relay health state on-line testing device; according to the scheme, online tracking of the health state and evaluation of the service life of the electrical relay in an actual environment can be realized, technical guidance can be provided for actual production, and the test efficiency of professionals in the technical field can be greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of relay online testing, and in particular to a system and method for online testing the health status of a relay under a multi-dimensional environmental stress field. Background Art

[0002] As a commonly used electrical control device, electromagnetic relays play the role of automatic adjustment, circuit protection, circuit conversion, etc. in the circuit. The health status of the relay at work determines the safety and reliability of the system. When the circuit where the relay is located is located in a more complex environment, environmental stresses including natural factors (temperature, humidity, airflow, salt spray, dust, corrosive gas, etc.) and induced environmental factors (vibration, impact, acceleration, etc.) will have physical, mechanical, and chemical effects on the relay, causing changes in its health status, reducing its reliability until failure.

[0003] At present, the relevant research on the test methods, detection equipment and other technologies of electromagnetic relays at home and abroad is very mature. Although it is possible to realize automatic detection of relay-related parameters, the detection means lack intelligent and information management. The equipment is not only large and inconvenient to carry and move, but also requires a lot of manpower and material resources. The detection cycle is long and the detection process is cumbersome. Moreover, most of the tests can only be completed in the laboratory, and it is impossible to test the performance of the relay online under the actual complex environmental stress and continuously track its health status. Summary of the invention

[0004] The purpose of the present invention is to provide a system and method for online testing the health status of a relay under a multi-dimensional environmental stress field in view of the above-mentioned shortcomings, which solves the problem that the prior art automatically detects relay-related parameters, but its detection means lack intelligent and information management. The equipment is not only large and inconvenient to carry and move, but also requires a large amount of manpower and material resources, with a long detection cycle and a cumbersome detection process. Moreover, most of the detection can only be completed in the laboratory, and it is impossible to online test the performance of the relay and continuously track its health status under the actual complex environmental stress.

[0005] In order to overcome the shortcomings of existing test methods and detection devices, the present invention provides an online testing system and method for the health status of electrical relays that are suitable for actual complex environmental stress fields. The system can realize online tracking of the health status of electrical relays and evaluation of their service life in actual environments, provide technical guidance for actual production, and greatly improve the testing efficiency of professionals in this technical field.

[0006] The present invention is achieved through the following scheme:

[0007] A relay health status online test system under a multi-dimensional environmental stress field, at least including but not limited to a cabinet, a power distribution and protection module, a switch power supply module, a test sample placement table, a relay health status online test device, an environmental parameter monitoring module, a switch group, a PC industrial control unit and a photoelectric exchange module; the power distribution and protection module is connected to the switch power supply module, the switch power supply module is respectively connected to the relay health status online test device, the switch group, the environmental parameter monitoring module and the photoelectric exchange module, the PC industrial control unit is connected to the power distribution and protection module; the test sample placement table is connected to the relay health status online test device.

[0008] Based on the structure of the online test system for the health status of a relay under the above-mentioned multi-dimensional environmental stress field, it also includes an industrial computer protection cover, test software and a heat dissipation system; the industrial computer protection cover is arranged on the PC industrial control unit to prevent the multi-dimensional environmental stress field from interfering with its normal operation; the test software is arranged in the PC industrial control unit, and the heat dissipation system is overall heat dissipation.

[0009] Based on the structure of the online test system for the health status of a relay under the above-mentioned multi-dimensional environmental stress field, the online test device for the health status of a relay includes a loading module for providing relay excitation conditions, a relay performance parameter test control module, a test power management module, a signal acquisition module, a microcontroller, test data storage and a communication interface; the power management module supplies power to the entire test device, and the loading module excites each controlled relay sample in turn according to the set frequency, and keeps it released for a period of time; the relay performance parameter test control module tests the normally open / closed contact performance parameters of the relay to be tested; the microcontroller can switch between manual test mode and automatic test mode; the signal acquisition module feeds back the loading conditions to the test control module, and the test data is collected and transmitted to the test system switch group by the test data interface; the online test device for the health status of the relay can set the working state of the relay in the actual circuit.

[0010] Based on the structure of the above-mentioned online test system for the health status of relays under a multi-dimensional environmental stress field, the working modes of the online test device for the health status of relays include: ① loading stage, each relay sample to be tested is excited in turn according to the set frequency, and maintained for a period of time before being released; ② testing stage, the performance parameters of each relay sample are tested in turn and the data is recorded; ③ it is possible to switch between manual testing and automatic testing modes; the online test device for the health status of relays is used to test various data of the relay samples to be tested.

[0011] Based on the structure of the online test system for the health status of a relay under the above-mentioned multi-dimensional environmental stress field, the online monitoring module for environmental parameters includes at least a copper environmental corrosion monitoring sensor, a silver corrosion monitoring sensor, a temperature and humidity monitoring sensor, a vibration monitoring sensor and a wind speed sensor; each sensor is arranged in a cabinet; the online monitoring module for environmental parameters is responsible for real-time monitoring of the environmental parameters of the operating environment of the electrical relay, obtaining a reasonable correlation between the environmental parameter level and the health status of the relay, and analyzing the impact of changes in environmental parameters on the health status of the relay.

[0012] Based on the structure of the above-mentioned online test system for the health status of a relay under a multi-dimensional environmental stress field, the test software includes a test system startup function, an environmental data display and export function, an environmental parameter stress field three-dimensional display function, a test program function for setting and controlling the online test device for the health status of the relay, a test data display and export function, all test data analysis and statistics functions and a relay health status diagnosis function; the test system startup function is responsible for starting the actual operation of the online test device for the health status of the relay, and the operation interface is used for technicians to input instructions to the test system.

[0013] Based on the structure of the above-mentioned online test system for the health status of relays under a multi-dimensional environmental stress field, the switch group manages all devices in the test system, establishes an internal local area network of the test system, and exchanges data with the PC industrial computer. At the same time, an interface for data exchange with external environmental monitoring equipment is reserved, and the interface can be connected to the external environmental monitoring equipment of the test system.

[0014] Based on the structure of the above-mentioned online test system for the health status of relays under a multi-dimensional environmental stress field, the PC industrial control unit is used to receive the test data of the tested electrical relay sample group, the monitoring data of the environmental parameter monitoring module, and store all the data; the optoelectronic exchange module is used for optoelectronic signal conversion and reserving a channel to maintain communication with an external server, supporting full-duplex mode optical transceiver integrated data transmission and single-mode dual-fiber LC optical port transmission.

[0015] This solution provides a method for online testing the health status of a relay under a multi-dimensional environmental stress field; an online testing system for the health status of a relay under the multi-dimensional environmental stress field described above, comprising the following steps:

[0016] S1, install the electrical relay sample group to be tested into the upper sample installation slot, and each group of samples to be tested has several parallel samples. According to the sample product structure diagram, the coil start position and the contact pair to be tested are connected to the relay health status online test device respectively;

[0017] S2, start the relay and terminal health status online monitoring device, the relay and terminal samples begin to enter the set working mode and data acquisition mode, and set the test program of the relay health status online testing device, such as coil voltage, action frequency, and parameters to be tested;

[0018] S3, start the environmental parameter monitoring module to monitor the operating environmental parameters of the electrical relay online, obtain data from multiple monitoring points in the system in real time, analyze the environmental stress state level of the electrical equipment operating area in real time, and support three-dimensional temperature distribution display style for data analysis; the monitoring data is transmitted through the network of the electrical relay health status data through the serial port / Ethernet data conversion technology of the TCP / IP protocol, and the industrial control unit performs data aggregation management and SQL database storage;

[0019] S4, starting the test program of the relay health status online test device, setting the test program of the relay health status online test device according to the working mode of the electrical relay to be tested in the actual circuit; and performing online testing on the performance of all samples on the sample placement table to be tested;

[0020] S5, the test system acquires and displays the operating status of the relay in real time, and supports manual mode and automatic mode; in the default state, the system enters the automatic mode, and the test device will perform the loading state-measurement state operation at the set time interval; click the industrial computer menu control to switch to the manual mode, all the electrical relays under test will be de-excited, the contacts will be disconnected and switched to the state to be measured; in manual mode, the industrial computer is allowed to perform parameter measurements of the relay's action time, release time, and contact resistance; the changes in the relay environment and key parameters are intuitively displayed based on the curve trend chart, and the life cycle and service life of the tested samples are dynamically analyzed.

[0021] The performance of all samples on the test sample placement table is tested online. Specifically, the performance parameters of the action time, release time, and contact resistance of all electrical relay samples on the test sample placement table are tested, and the above data are processed and displayed.

[0022] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0023] 1. The independently operated test system in this solution can personalize the corresponding loading conditions according to the working modes of different types of relays in the actual system, and obtain the online monitoring data of the health status of the relays during operation in a timely manner.

[0024] 2. This solution can realize online tracking of the health status of electrical relays and evaluation of their service life in actual environments, provide technical guidance for actual production and greatly improve the testing efficiency of professionals in this technical field.

[0025] 3. This solution can display the temperature, humidity and corrosion level distribution inside the cabinet in real time, which is helpful for technicians to intuitively obtain the changing trends and laws of the operating environment of the electrical relay. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the line test system in this scheme. DETAILED DESCRIPTION

[0027] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.

[0028] Any feature disclosed in this specification (including any additional claims and abstract), unless otherwise stated, may be replaced by other equivalent or alternative features having similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.

[0029] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "up", "down", "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a predetermined direction, be constructed and operated in a predetermined direction, and therefore cannot be understood as a limitation on the present invention.

[0030] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features.

[0031] Example 1

[0032] like Figure 1 The present invention provides a technical solution:

[0033] A relay health status online test system under a multi-dimensional environmental stress field, which at least includes but is not limited to a cabinet, a power distribution and protection module, a switch power supply module, a test sample placement table, a relay health status online test device, an environmental parameter monitoring module, a switch group, a PC industrial control unit and a photoelectric exchange module; the power distribution and protection module is connected to the switch power supply module, the switch power supply module is respectively connected to the relay health status online test device, the switch group, the environmental parameter monitoring module and the photoelectric exchange module, the PC industrial control unit is connected to the power distribution and protection module; the test sample placement table is connected to the relay health status online test device.

[0034] In this embodiment, the cabinet is mainly used as a carrier for the deployment of the hardware device and software of the integrated online test system, and is installed in the actual operation site area of ​​the tested electrical relay; the switch power supply module is powered by the power distribution and protection module, and after conversion, it provides special power for the relay health status online test device, the environmental parameter monitoring module, the switch group and the photoelectric exchange module; the sample placement table provides a test basis for the relay sample to be tested; the switch group mainly manages all the test and monitoring modules in the test system, establishes the internal local area network of the test system, and directs and forwards the destination address of the data packet according to the communication protocol to realize the data exchange between the PC industrial computer and the terminal interface of each module; the photoelectric exchange module is used for photoelectric signal conversion and reserved channels for maintaining communication with external servers. The module provides a flexible signal routing platform, supports a variety of network topologies, such as ring networks or star networks, and can connect to external servers or network layers according to needs, providing high-speed, reliable and stable data transmission services, and ensuring the quality of network services. Through this solution, the online tracking and service life evaluation of the health status of electrical relays in the actual environment can be realized, which can provide technical guidance for actual production and greatly improve the testing efficiency of professionals in this technical field.

[0035] As an example, it also includes an industrial computer protection cover, test software and a heat dissipation system; the industrial computer protection cover is set on the PC industrial computer unit to prevent the multi-dimensional environmental stress field from interfering with its normal operation; the test software is set in the PC industrial computer unit, and the heat dissipation system is for overall heat dissipation.

[0036] As an example, the relay health status online test device includes a loading module for providing relay excitation conditions, a relay performance parameter test control module, a test power management module, a signal acquisition module, a microcontroller, a test data storage and a communication interface;

[0037] The power management module supplies power to the entire test device, and the loading module excites each controlled relay sample in turn according to the set frequency and keeps it released for a period of time; the relay performance parameter test control module tests the normally open / closed contact performance parameters of the relay to be tested; the microcontroller can switch between manual test mode and automatic test mode; the signal acquisition module feeds back the loading conditions to the test control module, and the test data is collected and transmitted to the test system switch group through the test data interface; the relay health status online test device can set the working status of the relay in the actual circuit;

[0038] The working modes of the online test device for the health status of relays include: ① loading stage, each relay sample to be tested is excited in turn according to the set frequency, and is kept for a period of time before being released; ② testing stage, the performance parameters of each relay sample are tested in turn and the data are recorded; ③ it can realize switching between manual test and automatic test modes; the online test device for the health status of relays is used to test various data of the relay samples to be tested;

[0039] As an example, the environmental parameter online monitoring module includes at least a copper environmental corrosion monitoring sensor, a silver corrosion monitoring sensor, a temperature and humidity monitoring sensor, a vibration monitoring sensor and a wind speed sensor; each sensor is arranged in the cabinet;

[0040] The environmental parameter online monitoring module is responsible for real-time monitoring of the environmental parameters of the operating environment of the electrical relay. It can obtain the reasonable correlation between the environmental parameter level and the health status of the relay, and analyze the impact of changes in environmental parameters on the health status of the relay.

[0041] As an example, the test software includes test system startup function, environmental data display and export, three-dimensional display of environmental parameter stress field, setting and controlling the test program of the relay health status online test device, test data display and export, analysis and statistics of all test data and relay health status diagnosis; the test system startup function is responsible for starting the actual operation of the relay health status online test device, and the operation interface is used for technicians to input instructions to the test system.

[0042] As an example, the power distribution and protection module may include a leakage protector and a small circuit breaker; the power distribution and protection module is powered by an external power supply, is responsible for power protection of the total circuit, and then distributes power according to the actual needs of each circuit.

[0043] As an example, the switch group mainly manages all devices in the test system, establishes the internal LAN of the test system, and exchanges data with the PC industrial computer. At the same time, an interface for exchanging data with external environmental monitoring equipment is reserved. This interface can be connected to the external environmental monitoring equipment of the test system to obtain environmental monitoring data in a larger spatial area.

[0044] As an example, the PC industrial control unit is used to receive the test data of the tested electrical relay sample group, the monitoring data of the environmental parameter monitoring module, and store all the data.

[0045] As an example, the optoelectronic switching module is used for optoelectronic signal conversion and reserved channels for maintaining communication with external servers. It supports full-duplex optical transceiver data transmission, single-mode dual-fiber LC optical port transmission, with a rate of up to 1.25Gbps and a maximum distance of 40KM, ensuring the transmission quality and stability of optical signals in the optical fiber network. The optoelectronic switching module is used for optoelectronic signal conversion and reserved channels for maintaining communication with external servers.

[0046] Through the independently operated test system in this embodiment, the corresponding loading conditions can be personalized according to the working modes of different types of relays in the actual system, and the online monitoring data of the health status of the relays during operation can be obtained in a timely manner.

[0047] At the same time, this solution integrates an online monitoring system for multiple physical fields such as temperature, humidity, corrosion, vibration, and wind speed to analyze the environmental stress state level in the operating area of ​​electrical equipment in real time.

[0048] At the same time, this solution can display the temperature, humidity, and corrosion level distribution inside the cabinet in real time, which helps technicians to intuitively obtain the changing trends and laws of the operating environment of the electrical relay.

[0049] Example 2

[0050] A system based on the above embodiment 1;

[0051] A method for online testing of relay health status under a multi-dimensional environmental stress field; the method comprises the following steps:

[0052] S1, install the electrical relay sample group to be tested into the upper sample installation slot, with 5 parallel samples for each group of samples to be tested, and connect the coil start position and the contact pair to be tested to the relay health status online test device according to the sample product structure diagram;

[0053] S2, start the relay and terminal health status online monitoring device, the relay and terminal samples begin to enter the set working mode and data acquisition mode, and set the test program of the relay health status online testing device, such as coil voltage, action frequency, parameters to be tested, etc.;

[0054] S3, start the environmental parameter monitoring module to monitor the operating environment parameters of the electrical relay online, obtain data from multiple monitoring points in the system in real time, including environmental monitoring data of temperature, humidity, corrosion, and vibration, analyze the environmental stress state level of the electrical equipment operating area in real time, and support data analysis in a three-dimensional temperature distribution display style; the monitoring data is transmitted through the network of the electrical relay health status data through the serial port / Ethernet data conversion technology of the TCP / IP protocol, and the industrial control unit performs data aggregation management and SQL database storage;

[0055] S4, start the test program of the relay health status online test device, set the test program of the relay health status online test device according to the working mode of the electrical relay to be tested in the actual circuit; perform online test on the performance of all samples on the test sample placement table, specifically, test data of performance parameters such as action time, release time, contact resistance, etc. of all electrical relay samples on the test sample placement table, and process and display the above data;

[0056] S5, the test system acquires and displays the operating status of the relay in real time, and supports manual mode and automatic mode; in the default state, the system enters the automatic mode, and the test device will perform the loading state-measurement state operation at the set time interval; click the "Manual / Automatic Mode" menu control on the industrial computer web front-end interface to switch to manual mode, all electrical relays under test will be de-excited, the contacts will be disconnected and switched to the state to be measured; in manual mode, the industrial computer is allowed to perform key parameter measurements such as action time, release time, contact resistance, etc. on any electrical relay.

[0057] This method can also add and configure basic properties such as electrical relay coil voltage, rated power, action time and alarm threshold to achieve automatic control. When the sample to be tested shows abnormality or failure, the system can automatically trigger corresponding alarms and responses to achieve system alarm linkage.

[0058] This solution can configure a new electrical relay interface, fill in interface details and request instructions, and configure the interface storage data table name, store the test results of the electrical relay to be tested in the system background database, and support statistical report query and export functions of different dimensions.

[0059] Realize the "historical record" in the "data center", which can realize the graphical display of historical data, intuitively display the changes of electrical relay environment and key parameters according to the curve trend chart, and dynamically analyze the life cycle of the tested samples and the service life evaluation method.

[0060] The system provides users with data reports, which can realize the scheduled export of historical data analysis, and according to the threshold settings of key performance parameters of electrical relays, supports the setting of one or more alarm linkage rules for the variables of electrical relays to achieve unified management and automatic control. When the electrical relays in the monitoring system are abnormal or fail, the system can automatically trigger the corresponding alarms and responses to ensure production safety and immediate processing of alarm events.

[0061] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An online test system for relay health status under multi-dimensional environmental stress field, characterized in that: At least includes but is not limited to a cabinet, a power distribution and protection module, a switching power supply module, a sample placement table, an online test device for the health status of a relay, an environmental parameter monitoring module, a switch group, a PC industrial control unit and a photoelectric exchange module; the power distribution and protection module is connected to the switching power supply module, the switching power supply module is respectively connected to the online test device for the health status of the relay, the switch group, the environmental parameter monitoring module and the photoelectric exchange module, the PC industrial control unit is connected to the power distribution and protection module; the sample placement table is connected to the online test device for the health status of the relay.

2. The online test system for relay health status under a multi-dimensional environmental stress field according to claim 1, characterized in that: It also includes an industrial computer protection cover, test software and a heat dissipation system; the industrial computer protection cover is arranged on the PC industrial computer unit to prevent the multi-dimensional environmental stress field from interfering with its normal operation; the test software is arranged in the PC industrial computer unit, and the heat dissipation system is overall heat dissipation.

3. The online test system for relay health status under a multi-dimensional environmental stress field as claimed in claim 2, characterized in that: The relay health status online test device includes a loading module that provides relay excitation conditions, a relay performance parameter test control module, a test power management module, a signal acquisition module, a microcontroller, test data storage and a communication interface; the power management module supplies power to the entire test device, and the loading module excites each controlled relay sample in turn according to a set frequency, and keeps it released for a period of time; the relay performance parameter test control module tests the normally open / closed contact performance parameters of the relay to be tested; the microcontroller can switch between manual test mode and automatic test mode; the signal acquisition module feeds back the loading conditions to the test control module, and the test data is collected and transmitted to the test system switch group by the test data interface; the relay health status online test device can set the working state of the relay in the actual circuit.

4. The online test system for relay health status under a multi-dimensional environmental stress field as claimed in claim 3, characterized in that: The working modes of the online test device for the health status of relays include: ① loading stage, each relay sample to be tested is excited in turn according to the set frequency, and maintained for a period of time before being released; ② testing stage, the performance parameters of each relay sample are tested in turn and the data are recorded; ③ it is possible to switch between manual testing and automatic testing modes; the online test device for the health status of relays is used to test various data of the relay samples to be tested.

5. The online test system for relay health status under a multi-dimensional environmental stress field as claimed in claim 4, characterized in that: The environmental parameter online monitoring module includes at least a copper environmental corrosion monitoring sensor, a silver corrosion monitoring sensor, a temperature and humidity monitoring sensor, a vibration monitoring sensor and a wind speed sensor; each sensor is arranged in a cabinet; the environmental parameter online monitoring module is responsible for real-time monitoring of the environmental parameters of the operating environment of the electrical relay, obtaining a reasonable correlation between the environmental parameter level and the health status of the relay, and analyzing the impact of changes in environmental parameters on the health status of the relay.

6. The online test system for relay health status under a multi-dimensional environmental stress field according to claim 5, characterized in that: The test software includes a test system startup function, an environmental data display and export function, an environmental parameter stress field three-dimensional display function, a test program function for setting and controlling a relay health status online test device, a test data display and export function, all test data analysis and statistics functions, and a relay health status diagnosis function; the test system startup function is responsible for starting the actual operation of the relay health status online test device, and the operation interface is used for technicians to input instructions to the test system.

7. The online test system for relay health status under a multi-dimensional environmental stress field according to claim 6, characterized in that: The switch group manages all devices in the test system, establishes an internal LAN of the test system, and exchanges data with the PC industrial computer. At the same time, an interface for data exchange with external environmental monitoring equipment is reserved, and the interface can be connected to the external environmental monitoring equipment of the test system.

8. The online test system for relay health status under a multi-dimensional environmental stress field according to claim 7, characterized in that: The PC industrial control unit is used to receive the test data of the tested electrical relay sample group, the monitoring data of the environmental parameter monitoring module, and store all the data; the optoelectronic exchange module is used for optoelectronic signal conversion and reserving a channel to maintain communication with an external server, supporting full-duplex mode optical transceiver integrated data transmission and single-mode dual-fiber LC optical port transmission.

9. A method for online testing of relay health status under a multi-dimensional environmental stress field; characterized in that: An online test system for the health status of a relay under a multi-dimensional environmental stress field as described in any one of claims 1 to 8 comprises the following steps: S1, install the electrical relay sample group to be tested into the upper sample installation slot, and each group of samples to be tested has several parallel samples. According to the sample product structure diagram, the coil start position and the contact pair to be tested are connected to the relay health status online test device respectively; S2, start the relay and terminal health status online monitoring device, the relay and terminal samples begin to enter the set working mode and data acquisition mode, and set the test program of the relay health status online testing device, such as coil voltage, action frequency, and parameters to be tested; S3, start the environmental parameter monitoring module to monitor the operating environmental parameters of the electrical relay online, obtain data from multiple monitoring points in the system in real time, analyze the environmental stress state level of the electrical equipment operating area in real time, and support three-dimensional temperature distribution display style for data analysis; the monitoring data is transmitted through the network of the electrical relay health status data through the serial port / Ethernet data conversion technology of the TCP / IP protocol, and the industrial control unit performs data aggregation management and SQL database storage; S4, starting the test program of the relay health status online test device, setting the test program of the relay health status online test device according to the working mode of the electrical relay to be tested in the actual circuit; and performing online testing on the performance of all samples on the sample placement table to be tested; S5, the test system acquires and displays the operating status of the relay in real time, and supports manual mode and automatic mode; in the default state, the system enters the automatic mode, and the test device will perform the loading state-measurement state operation at the set time interval; click the industrial computer menu control to switch to the manual mode, all the electrical relays under test will be de-excited, the contacts will be disconnected and switched to the state to be measured; in manual mode, the industrial computer is allowed to perform parameter measurements of the relay's action time, release time, and contact resistance; the changes in the relay environment and key parameters are intuitively displayed based on the curve trend chart, and the life cycle and service life of the tested samples are dynamically analyzed.

10. The method for online testing of relay health status under a multi-dimensional environmental stress field according to claim 9, characterized in that: The performance of all samples on the test sample placement table is tested online. Specifically, the performance parameters of the action time, release time, and contact resistance of all electrical relay samples on the test sample placement table are tested, and the above data are processed and displayed.

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