56results about How to "Fulfill test requirements" patented technology

The invention discloses a capacitive touch key chip detection and calibration system and method. The system comprises an insertion detection and calibration module, a communication control and register configuration module, a data storage module, a key processing module, a comparison analysis module, an error processing module, a power control module and a terminal control module. The detection system and method can perform sensitivity performance measurement and clock calibration to a number of touch key chips, and achieve functions of chip insertion detection, graphical performance display of the terminal in the double-layer mode, comparative analysis, multi-voltage output control, real-time data recording and storage by control software, and system error handling and other functions.

The invention provides a soil horizontal frost-heaving visualization testing apparatus. The soil horizontal frost-heaving visualization testing apparatus comprises a sample cylinder, a loading system,a digital image measurement system, a water-supplementing system, and a temperature control system. The soil horizontal frost-heaving visualization testing apparatus can realize requirements of an experiment under different temperature conditions; performs real-time observation and analysis on moisture migration and temperature gradient change during a sample soil horizontal freezing process; performs real-time determination on frost-heaving displacement and stress during the sample soil horizontal freezing process, and realizes engraving of a horizontal segregated ice growth process in the horizontal freezing process.

The invention discloses a multifunctional PXI module integration testing instrument and a testing method of the multifunctional PXI module integration testing instrument. The combined instrument technology is adopted, nine common PXI instrument and meter functional modules including a digital multimeter, a digital oscilloscope, an arbitrary waveform generator, a radio frequency signal source, a radio frequency power meter, a spectrum analyzer, a modulation degree analyzer, an audio analyzer and a bus testing instrument are integrated into a small portal device. The modularization combination of various testing functions in the measuring and controlling field is achieved, various testing requirements can be met, a measuring and controlling system is reduced in size, energy consumption is reduced, and the control level is improved.

The invention provides a matrix comprehensive tester and a testing method. The matrix measuring instrument can achieve automatic switching of channels and can improve the testing efficiency and safety; with a built-in universal meter, an external oscilloscope, an external power source and an external resistor, many testing modes can be achieved, so that the simple instruments and apparatuses can meet the requirement for multiple kinds of tests; by designing automatic testing software and testing procedures, testing methods can be standardized and unified and the consistence of test data in all phases in an apparatus delivery period is guaranteed; test data can be interpreted and stored automatically, so that interpretation and management of test data are facilitated.

The invention relates to a portable charging pile network access detection device and a network access detection method. The device comprises a vehicle interface simulator, a communication module anda main control module. The vehicle interface simulator is externally connected to a charging pile and is connected to the main control module. The communication module is connected to the main controlmodule, which is used for the data interaction between vehicle networking and the charging pile. The main control module is used to make the vehicle interface simulator simulate an electric vehicle to carry out a network access charging test. By using the detection device of the invention, a fault analysis intelligence level is increased; through detecting the voltage and the current of the charging pile during working, whether the charging pile can work normally, and the voltage and the magnitude of current during working can be simply and rapidly detected; vehicle networking and electric vehicle charging pile network access usage detection means are enriched; and the comprehensiveness and the focusing of detection and the safety and the reliability of charging pile usage are increased,and a charging accident rate is reduced.

The invention discloses a user interface test method and device, equipment and a medium. The method comprises the steps of setting a test case in advance according to a page control of a user interface, an operation behavior of the page control and an execution result verification mode; setting a test case set corresponding to each test scene by utilizing the test cases; obtaining a target test instruction for testing the user interface; and calling a corresponding target test case set in the test case set according to the target test instruction and a preset execution script, running each test case in the target test case set, and testing the user interface to obtain a test result file. The requirement for the skill level of testers can be lowered, consumption of human resources is reduced, and the testing efficiency is improved; the reusability of the test case set and the preset execution script is high, so that the test time can be greatly saved; by calling the execution script andthe test case set, large-batch test requirements can be met, and the test efficiency is further improved.

The invention relates to an on-board firefighting capstan comprehensive testing device. The on-board firefighting capstan comprehensive testing device comprises a control system, a power mechanism, a breaking testing device, and a capstan testing device. A breaking testing oil cylinder and a first traction rope test piece are vertically fixedly connected with an experimental testing arm. The end of the first traction rope test piece is fixedly connected with a first fixing device. The capstan testing device comprises a capstan tension sensor, a capstan installation rack, and a power roller device. A tested capstan is fixedly disposed on the capstan installation rack, and two ends of a second traction rope are respectively disposed on the tested capstan and a drum in a coiled manner. The on-board firefighting capstan comprehensive testing device is advantageous in that an application range is wide; an industrial brake is adopted, and a range of carrying capacity is adjustable; the fast installation of the capstan and the adjustment of the lengths of the traction ropes are realized, and the extending angles of the traction ropes are adjustable, and testing adjustment at different angles can be simulated conveniently.

The invention discloses a large-span cantilever type triaxial posture adjustment turntable for a spacecraft. The turntable comprises a supporting platform, an omnibearing travelling wheel system, a lifting system, an overturning system and a rotating mechanism, wherein the inner side of a C-type ring of an overturning rack is connected with the outer side of a rotating ring through a roller combination, the inner side of the C-type ring surrounds the outer side of the rotating ring, the rotating ring is adjusted to be in a proper assembling, testing or experimenting state, the spacecraft is locked dead by a locking device of the rotating ring, and then related working items of the spacecraft are carried out. According to the invention, opening assembly requirements of embedded products such as a high-thrust engine and the like as well as products such as narrow space pipes and the like of the spacecraft are met, reachability and convenience of operation are achieved, and the problem ofstructural deformation in the large-span and large-mass load cantilever state is solved.

The invention provides a disconnection-free testing method for high voltage electric equipment in a transformer substation. The method includes steps of a, cutting off power of the equipment in the transformer substation, disengaging a switch on a grounding side of a circuit breaker and engaging the circuit breaker, disengaging a neutral point grounding switch of a voltage transformer, disengaging a voltage transformer side switch, moving a handcart in a switch chamber to an operation position and disengaging the grounding switch; b, measuring the integral resistance of all the equipment; c, connecting a DC leaking equipment to a high voltage side single-phase conductor of a main voltage transformer, boosting voltage slowly after wiring, maintaining for one minute after the voltage is boosted for 1 / 10 each time during the boosting process, reading the leaking current value until the leaking current value lasts for one minute in a full voltage condition; d, drawing a volt-ampere characteristic curve according to the read voltage, current and time. Since the above technical scheme is adopted, the testing duration can be reduced effectively and the working efficiency is improved. The testing demand for saving the equipment disconnection process is realized, the line power-off time is reduced and great social benefits and economic benefits are achieved.

The invention discloses a testing device for repeated positioning accuracy of a servo tool holder. The testing device comprises a magnetic base, a locating piece, a wedge block, a hollow rotary base and a rod assembly, a boss is arranged on the upper portion of the locating piece, the locating piece is fixedly connected to the magnetic base, and the wedge block is fixedly connected to the locating piece and located on the outer side of the boss. In the circumferential direction of the locating piece, an inclined face is arranged at one end of the wedge block, and a vertical face is arranged at the other end of the wedge block. The boss is sleeved with the rotary base, a gap is formed in the lower portion of the wall of the rotary base, and the gap is matched with the wedge block. The rod assembly is fixedly connected to the top face of the rotary base. The invention further discloses a testing method. According to the testing device and testing method, repeated positioning accuracy of the servo tool holder can be tested with low cost and easy operation, and meanwhile high testing accuracy can be achieved.

The invention discloses a VRU motion triggering system and a VRU motion triggering method in an automobile AEB test, which belong to the field of driving assistance systems. The VRU motion triggeringsystem comprises a controller, a radar, a driving unit, a traction device and a dummy device, wherein the radar is used for detecting a moving speed of the target vehicle and a distance between the target vehicle and the dummy device VRU; the controller is used for acquiring collision time of the target vehicle and the dummy device VRU according to the moving speed of the target vehicle and the distance between the target vehicle and the dummy device VRU, and sending a driving signal to the driving unit when the collision time is less than or equal to preset time; the driving unit is used forsending a trigger signal to the traction device after receiving the driving signal; and the traction device is used for controlling and pulling the dummy device VRU to move according to a preset speedand a preset direction under the driving action of the driving unit after receiving the trigger signal. The VRU motion triggering system and the VRU motion triggering method are low in implementationcost, and meet the requirements of AEB pedestrian tests simply and efficiently.

The invention discloses a multifunctional testing device and method for asphalt stirring, preparation and microwave aging. The device comprises a temperature control system, a stirring system, an objective table and an air blowing system; the temperature control system comprises a control box, an environment box, an infrared temperature probe, a microwave generator and a control panel, the stirring system comprises an illuminating lamp, a motor and a rotor; the rotor comprises a first rotor and a second rotor, and the air blowing system comprises an air blowing window, a draught fan, a filter,a heater and a cooler; in a process of performing microwave aging on the asphalt by using the testing device, a test mold is arranged on the objective table, the test mold is used for holding a testsample, the test sample is heated by the microwave generator, and the temperature of the test mold is monitored in real time by the infrared temperature probe. When the above testing device is used for stirring the asphalt and preparing modified asphalt, the rotor adopts the second rotor, and the second rotor is controlled to stir the test sample through the control panel. By adoption of the multifunctional testing device and method provided by the invention, the preparation efficiency and the output of the aged asphalt are improved, and the multifunctional test requirements are met.

The invention discloses a semi-automatic water pump performance test platform. The platform lifting and falling are completed by an oil cylinder, and meanwhile, a platform is positioned by four guide pillars fixed under the platform; gear and rack structures performing opposite movement are adopted, so that the four guide pillars are driven to move simultaneously, and the platform lifts or falls horizontally and is not inclined; with the adoption of thin wall sleeve structures, the guide pillars can be tightly clamped at any height, the platform and a base are connected without gaps, and the problem of vibration of the platform is completely solved; with the adoption of the pressurized oil cylinder, the guide pillars are tightly clamped by the thin wall sleeves when the system is under low working pressure; the lifting displacement is digitally displayed, the automation degree and the accuracy are high, observation is facilitated, and the operation is simple and convenient; hydraulic lifting is adopted to replace original electric screw lifting, an electric appliance fault caused by accidental water leakage is avoided, the existing defects of the water pump test platform are overcome, and the test requirements of various types of centrifugal water pumps are really met.

The invention relates to an engine laminate restrictor test board. An automatic measurement and control system and a laminate restrictor test system are installed inside a test board body. The automatic measurement and control system comprises a panel industrial personal computer, a frequency converter and a PLC which is communicated with the panel industrial personal computer. An oil tank and an anti-detonation oil pump set which is connected with the oil tank are installed inside the test board body on the lower portion of the test board. The PLC is electrically connected with a frequency conversion motor of the anti-detonation oil pump set. The laminate restrictor test system is connected with the anti-detonation oil pump set through an oil delivery pipeline. An inlet pipeline of the laminate restrictor test system is provided with a laminate restrictor inlet pressure gauge and a laminate restrictor inlet pressure transmitter which is electrically connected with the PLC. The oil tank, the anti-detonation oil pump set, the automatic measurement and control system and the laminate restrictor test system are distributed on the test board, automization of a laminate restrictor test is achieved, and the problem that a performance test cannot be carried out on a laminate restrictor in an engine fuel system adjusting device is solved.

A signal processing method of a general input / output interface is used to carry a data signal with a control signal. Firstly, a replacement digital signal is generated by replacing time sequence of the data signal. Secondly, the replaced data signal is carried with the control signal. According to the invention, two information signals are transmitted by one single pin to implement objective of using the input / output interface sufficiently.

The invention discloses an airplane seat constraint system function and airtight testing bench. The testing bench comprises a hanger, a hanging beam, a hanger rod, a bufferfly-like nut, a fixed pulley and a support, wherein the fixed pulley is fixed on the upper end of the support, one end of the hanging beam is hinged to the support through a connection assembly, the hanger is installed at the upper portion of one end, closer to the support, of the hanging beam, the hanger rod is disposed at one end, closer to the support, on the hanging beam, the hanger rod is connected with the hanging beam through the bufferfly-like nut, and the lower end of the hanger rod is suspended with a counterweight. The airplane seat constraint system function and airtight testing bench has the advantages of reasonable structural design, convenient application and the like, can rapidly and accurately realize airplane seat test requirements, is low in fault rate and convenient to operate, greatly improves the airplane seat repair efficiency, saves enormous production time, gets rid of restrictions of air pressure, hydraulic pressure and motor parts, is safe and environmentally friendly and can stably carry out product function examination.

The invention provides a receiver electric performance test device and test method for a 230MHz electric power private network communication module. The device comprises a message generation module, a baseband stream time sequence control module, a lead code generation module, a modulator module, an end code generation module, a 230MHz radio frequency generation module and transceiving message comparison module. The device and the method have the advantages that 1, receiver electric performance indexes such as receiving sensitivity and receivable frequency offset of a 230MHz private network communication module under special messages can be tested; and 2, information such as frequency and pulse length of a lead code and an end code can be adjusted according to different 230MHz electric power private network communication criteria; length, a frame format and a modulation mode of data frames can be adjusted; criterion demands of different versions can be adapted; and test demands of messages of any code pattern and length can be realized.

The invention provides a four-quadrant hydraulic pump performance optimization test system and method. The system comprises a motor / generator, a torque rotating speed sensor, a plurality of tested pumps, a plurality of one-way valves, a safety valve, a filter, a cooler, a flow sensor, a proportional overflow valve, a plurality of two-position two-way electromagnetic directional valves, a proportional throttle valve, a dynamometer system, a plurality of pressure sensors, a motor / generator controller and a test system controller. And a power module and a dynamometer system controller. A plurality of one-way valves are designed to form a hydraulic rectifier bridge, the liquid flow direction under different working conditions is automatically adjusted, the performance test of the same hydraulic system on each working condition is achieved, the performance test of the pump under various loads is achieved through a proportional overflow valve and a power measuring system, the performance parameter test of a traditional hydraulic pump is achieved, and the test efficiency is improved. And various performance tests of the pump under actual load conditions in various typical application scenarios and parameter matching optimization tests of key elements of a typical pump-controlled hybrid power system are realized.

The invention provides a hydrogen circulation testing system of a fully-automatic high-pressure hydrogen cylinder and a testing method. The system comprises a temperature tank, a high-pressure container and a tested hydrogen cylinder, wherein the high-pressure container is placed inside the temperature tank; the tested hydrogen cylinder is placed inside the high-pressure container; the tested hydrogen cylinder is connected with a hydrogen pressure unit; a liquid inlet and a liquid outlet are formed in the high-pressure container; the high-pressure container is connected with a liquid pressurecirculation unit through the liquid inlet and the liquid outlet; and pressure circulation testing on the tested hydrogen cylinder is achieved according to pressure difference change of hydrogen insidethe tested hydrogen cylinder and liquid outside of the tested hydrogen cylinder. By adopting the system, hydrogen inside the high-pressure hydrogen cylinder is pressurized, liquid pressure circulation is exerted outside the hydrogen cylinder, pressure circulation on the high-pressure hydrogen cylinder is implemented according to the pressure difference change of the hydrogen inside the tested hydrogen cylinder and the liquid outside of the tested hydrogen cylinder, and the pressure circulation testing on the high-pressure hydrogen cylinder at different temperature is also implemented, so thatthe testing cost is reduced, and the testing security is improved.

The invention discloses a high-temperature molten salt pump comprehensive test detection device and a test method. The device comprises a test table, a pump bucket, and a molten salt tank. A motor, abearing box and a molten salt tank temperature monitor are arranged on the test table, the molten salt tank is below the test table, supporting bases of a heating pipe, a molten salt pump inserting opening, a liquidometer, an in-tank pressure transmitter, and a molten salt putting opening are arranged on the upper surface of the molten salt tank, and a backflow pipe inlet is formed in the right end; temperature sensor monitoring points and vibration sensor monitoring points are arranged in an inner cavity of the molten salt tank, the pump bucket is arranged in the middle of the test table, a high-temperature molten salt pump is arranged in the middle of the pump bucket, the lower end of the high-temperature molten salt pump is arranged in the molten salt tank, an outlet of the high-temperature molten salt pump is provided with a backflow pipeline, an outlet pressure transmitter is arranged at the upper end of the backflow pipeline, a flowmeter and a flow control valve are arranged at the lower end of the backflow pipeline, and the backflow pipeline communicates with the molten salt tank through the backflow pipe inlet. The high-temperature condition test is achieved, test needs ofmolten salt pump shafts of different types and lengths can be met, and the comprehensive test and evaluation of the molten salt pump performance can be achieved.

The invention relates to the technical field of infrared imaging testing, and specifically relates to a combined-type standard testing source and method for an infrared sensor. The combined-type standard testing source is formed by the combination of a multi-mode black body and a standard black body. The biggest characteristic of the combined-type standard testing source is that the combined-type standard testing source guarantees that the temperature difference of all testing targets in a constant temperature box can nearly be neglected through the constant temperature box (multi-mode black body) capable of controlling temperature at high precision and the arrangement of the plurality of testing targets in the constant temperature box, improves the testing calibration precision, and meets different testing requirements. Meanwhile, the multi-mode black body and the standard black body are combined, thereby meeting the requirements of the conventional testing of the infrared sensor, and solving problems of temperature measurement calibration and image calibration of the infrared imaging sensor. The standard testing source achieves the automatic operation through a streamline-type transmission device, and greatly improves the testing efficiency.

The invention provides a gel mold and a preparation method and application thereof, a filler of the gel mold is in a jelly gel state, the filler is a uniform mixture of a water mold filling solution and a gel substance, and the gel substance is gelatin or agarose. The gel mold is prepared from low-cost materials and applied, and the technical problem that in the prior art, injected blood cannot beeffectively prevented from being dissolved in filling liquid, and therefore a cerebral hemorrhage model of a human body cannot be effectively simulated is solved.

The invention relates to capacitive touch screen conducting film probe type electrical testing equipment which comprises a workbench, a carrier plate used for placing a touch screen, a support arranged above the workbench, a TX testing assembly and an RX testing assembly, wherein the TX testing assembly and the RX testing assembly are arranged on the support. Vacuum adsorption nozzles which are distributed at equal intervals are arranged above the carrier plate, and the touch screen is adsorbed and fixed through the vacuum adsorption principle; the TX testing assembly and the RX testing assembly can move transversely and longitudinally relative to the workbench at the same time, and then alignment with a touch screen conductive film test position is achieved. The problem that an existing electric testing machine cannot meet the testing requirement of a touch screen conducting film or is low in testing efficiency is solved, the multiple sections of movable testing pressure heads and short-circuiting bars are adopted, transverse and longitudinal adjustment can be achieved through each testing pressure head and short-circuiting bar, switching of testing requirements of touch screen conducting films of different models is achieved, electric testing of touch screen conducting films of different models can be achieved, and the testing efficiency is greatly improved.

The invention provides a rotatable support mechanism of a thermal load test bench. The rotatable support mechanism comprises a test bench main body framework, a test bench rotation support mechanism, a support framework and a cooling water supply mechanism. The test bench rotation support mechanism comprises a left rotation support mechanism and a right rotation support mechanism which are respectively fixedly installed on left and right sides of the upper surface of the test bench main body framework. The left rotation support mechanism and the right rotation support mechanism are fixedly connected with two ends of the support framework respectively. According to the invention, thermal fatigue testing of different to-be-tested pieces can be achieved; through exchange of the support framework, support for to-be-tested pieces of a cylinder cover and a piston can be achieved, and test requirements of to-be-tested pieces with different cylinder diameters can be also achieved; through the overturn function, it can be achieved that during a test, the thermal power of the to-be-tested piece id downwards, and the combustion flame is upwards, and it can be achieved that after the thermal power of the to-be-tested piece is backwards, the gas upwards washes an air flue, and comprehensive and real simulation of working states of the to-be-tested piece can be achieved; and it can be achieved that cooling water is provided through a rotation shaft.

The invention provides an air inlet and outlet connector device for an annular radiator. The air inlet and outlet connector device comprises an air inlet connector assembly, an air outlet connector assembly and the annular radiator, the air inlet connector assembly comprises an air inlet inner barrel and an air inlet outer barrel, the air outlet connector assembly comprises an air outlet inner barrel and an air outlet outer barrel, the annular radiator is arranged between the air inlet connector assembly and the air outlet connector assembly, and the air inlet connector assembly and the air outlet connector assembly are fixed through a positioning connecting rod. According to the air inlet and outlet connector device for the annular radiator, the annular radiator can be rapidly replaced, the test environment building period is effectively shortened, the structure is simple, the performance is reliable, a movable connector is adopted, repeated utilization can be achieved, and the test requirement of the annular radiator is met at low cost.

The invention relates to the technical field of semiconductor device testing equipment, in particular to a bending testing device which is used for testing a flexible component and comprises a first clamp, a second clamp and a stroke limiting piece, the first clamp is used for clamping a first edge of the flexible component, the second clamp is used for clamping a second edge of the flexible component, and the second edge and the first edge are oppositely arranged; the stroke limiting piece is used for limiting the stroke of the second clamp moving towards the two sides of the clamping plane of the first clamp, so that the two ends of the second clamp can move towards the two sides of the clamping plane of the first clamp in an arc mode at different speeds, and the flexible component can be driven to bend towards the two sides. The bending test device provided by the embodiment of the invention can drive the flexible component to bend towards the two sides, so that inward bending and outward bending tests of the flexible component are realized.

The invention discloses comprehensive integral testing equipment for density and thermal shock damage of ceramics. A lower bottom plate of a frame is horizontally placed on a support base; a working platform surface is mounted inside the frame; support screw rods are mounted inside the frame; the frame is encircled by an outer baffle plate; a glass rotating door is arranged in the outer baffle plate; a cover is arranged at the upper part of a lifting basket; an iron block is embedded into the cover; a magnetic sucker is mounted at the front end of a cylinder; the cylinder is hung at the lower end of a rocker arm; the rocker arm is connected with a synchronous motor; heating cylinders are arranged right above auxiliary heaters and magnetic stirrers; the bottoms of cooling cylinders are arranged right above the magnetic stirrers; copper tubes are arranged on the circumferences of the cooling cylinders; the cooling cylinders contact the magnetic stirrings; temperature sensors are arranged inside the heating cylinders and the cooling cylinders; liquid level sensors are arranged inside the heating cylinders. By adopting the comprehensive integral testing equipment, conversion of testing of density and thermal shock can be achieved, testing requirements of different standards and different ceramic products can be met, precise control on temperature and movement can be achieved through the temperature sensors, the liquid level sensors and an industrial control computer, testing automation can be achieved, the workload of operators can be reduced, and testing influence can be reduced.

The invention relates to a method and device for testing a plurality of communication protocols based on an equipment manager. The method comprises the following steps: a computer equipment manager sends a restart message to a data acquisition and analysis card; the data acquisition and analysis card performs restarting after receiving the restart message; in the restarting process, the data acquisition and analysis card acquires communication protocols to be loaded preset in the registry, and runs communication protocol programs corresponding to the communication protocols to be loaded storedin a designated location of the computer through programmable devices for testing; and the programmable devices are mounted on the data acquisition and analysis card and connected to each other for communication. The method and device realize analysis and testing of various communication protocols without changing the data acquisition and analysis card of the hardware equipment, improve the use efficiency of the hardware, and greatly save resources.

The invention discloses a motor vehicle exhaust arc arrester test device which comprises a fan, a delivery pipe, an exhaust pipe silencer, intelligent flow totalizers, orifice plate flowmeters, a differential pressure gauge, a coal supply mechanism and an active carbon granule colleting device. The motor vehicle exhaust arc arrester test device is characterized in that two delivery pipelines are arranged between the exhaust pipe silencer and the active carbon granule colleting device, the orifice plate flowmeters and the intelligent flow totalizers are arranged on the two delivery pipelines, and the coal supply mechanism is adjustable and with a constant speed. The motor vehicle exhaust arc arrester test device has the advantages that the coal supply mechanism with the constant speed is adopted, the orifice plate flowmeters and the intelligent flowmeters are adopted, wherein the orifice plate flowmeters and the intelligent flowmeters are with two sizes, so that accuracy of test results is improved greatly. The motor vehicle exhaust arc arrester test device is simple in structure, high in measuring accuracy, wide in measuring range, stable in measuring and convenient to maintain.

An automatic test method for relay protection devices in intelligent substations. Testers compile a standard test plan template at the initial stage of system establishment; through the automatic test software on the PC, communication is established with test instruments and protection devices at the same time to realize closed-loop sharing of data; Real-time display and acquisition of relevant data such as measurement volume, input and output, and time during the test; based on the acquired data, based on the decision tree algorithm, automatically identify the test status of the project and obtain the test results of the project. At the same time, the test software replaces manual work to achieve A series of operations such as modifying the fixed value, throwing and withdrawing the pressure plate, and summarizing the test data; generating and filling in the test report, and ending the test. Based on the principle of closed-loop testing, the present invention interconnects automatic testing software, testing instruments and protection devices, and consists of a physical layer, a communication interface layer, a data layer, a logical layer and an application layer to form an automatic testing system, thereby realizing relay protection. automatic testing.