28results about How to "Simple test operation" patented technology

The invention relates to the technical field of software testing, and provides a GUI testing method and device of an application program, electronic equipment and a storage medium. In the process of running the to-be-tested application program, multiple pieces of GUI state information are collected; for each piece of GUI state information, obtaining each piece of matched target test knowledge from a test knowledge base according to the GUI state information, and generating a corresponding test prompt word in combination with the GUI state information; and generating a test strategy based on the GUI state information and the corresponding test cue word by using the multi-modal large model, and carrying out GUI test on the to-be-tested application program according to the test strategy by using the test tool so as to carry out GUI traversal test on the to-be-tested application program. Related test knowledge is obtained through the test knowledge base and cue words are generated to guide the multi-modal large model to output the test strategy so as to explore more interaction paths to carry out GUI test, so that the test operation is simplified, and the test efficiency and coverage rate are improved.

A horizontal double-ball quasi-optical cavity testing device for measuring the electromagnetic performance of a thin film material relates to the field of electromagnetic characteristic parameter testing, in particular to a quasi-optical cavity method testing system, and comprises a vector network analyzer (1), a frequency doubling module (2), a waveguide (3), a quasi-optical cavity (4), a sample clamp (5), a bidirectional transmission screw rod (6), a shielding frame (7), a displacement platform (8), a base (9) and a supporting block (10). The quasi-optical cavity (4) is of a double-spherical-cavity structure, is connected with the vector network analyzer (1) in a horizontal manner, and tests a sample by utilizing a resonance method; the sample clamp (5) adjusts the position of the sample by using a displacement platform (8); the shielding frame (7) can restrain miscellaneous molds, and the restraining effect is adjusted through the two-way transmission lead screw (6). The device has the advantages that the double-ball-cavity sensitivity is high, and the device is suitable for thin-film material testing; the horizontal structure is beneficial to connection of the vector network analyzer and the quasi-optical cavity; the double-ball cavity can measure the electromagnetic performance of the thin film material according to different odd and even modes.

The invention belongs to the field of battery testing, and particularly relates to a method for rapidly evaluating the performance of a silicon-carbon negative electrode material of a lithium ion battery, which comprises the following steps: (1) testing the specific surface area SA of a material to be tested; (2) carrying out a pressurization test on the material powder to be tested according to a set compaction density; (3) testing the specific surface area of the sample after pressure, and recording the specific surface area as SB; and (4) calculating the change value delta S = SB / SA-1 of the specific surface area of the sample before and after pressurization, and comparing the delta S with a reference value delta S0 to judge the material performance. The method has the advantages of simple sample treatment and test operation, convenience, rapidness and good feasibility, and can be used for rapidly evaluating the performance of the lithium ion battery silicon-carbon negative electrode material.

The invention discloses an Indel site related to soybean stem diameter, a molecular marker and application of the Indel site and the molecular marker, and belongs to the field of molecular marker assisted breeding. Carrying out PCR (Polymerase Chain Reaction) amplification and detection by using an amplification primer of the molecular marker 17-10.64 by taking the molecular marker 17-10.64 as a template; when the product fragment is 199bp, judging that the soybean to be identified is a soybean strain with thin stalks; and when the product fragment is 255bp, judging that the to-be-identified soybean is a soybean strain with thicker stalks. The molecular marker 17-10.64 contains an Indel site related to the soybean stem diameter, the Indel site is located at the No.17 chromosome 1, 064, 063 bp of the soybean, and the polymorphism is an amplified fragment difference of 56bp. According to the method, the soybean breeding time is shortened, the soybean breeding efficiency is improved, and powerful support is provided for efficiently developing and utilizing wild soybean germplasm resources and rapidly breeding lodging-resistant high-quality soybean varieties with thick and strong stalks.

The utility model discloses a three-point bending test device for a test sample. The three-point bending test device comprises a bearing assembly, a locking assembly and a bending mechanism, the bearing assembly is provided with a base, a first bearing piece, a second bearing piece and a stop piece. The first bearing piece and the second bearing piece are oppositely arranged on the base. The first bearing member and the second bearing member bear the test sample. The stop piece is arranged on the first bearing piece and the second bearing piece. And the long edge of one side of the test sample sheet is propped against the stop piece. The locking assembly is provided with a locking piece and an adjusting piece. The locking piece is located on the side, away from the second bearing piece, of the first bearing piece. And the adjusting piece is connected with the locking piece. The adjusting piece adjusts the distance between the locking piece and the first bearing piece, and the short edge of one side of the test sample piece abuts against the locking piece. The bending mechanism is arranged above the bearing assembly. The bending mechanism is provided with a lifting assembly and a bending pressing head. The lifting assembly is connected with the bending pressing head. The bending pressing head is located between the first bearing piece and the second bearing piece. According to the utility model, the test operation is simplified, and the test efficiency is improved.

The invention relates to a method and a device for automatically testing SPI peripherals, which are based on a designed upper computer and lower computer test architecture and test mode, the test flexibility is high, parameters can be customized according to requirements, and various SPI signals can be flexibly generated; the test is more comprehensive, random data is supported to better verify the pressure resistance and robustness of the SPI peripherals, potential boundary conditions and abnormal conditions can be found, and the stability and reliability of a vehicle-mounted system are ensured; the application range is wide, the reusability is high, and the MCU with SPI (Serial Peripheral Interface) equipment can be tested; the test operation is simple, the test efficiency is high, the cost is low, and a single chip can be self-tested to reduce interference.

The utility model relates to the technical field of interface strength testing, in particular to an interface plugging strength testing jig which comprises a clamping assembly and a testing assembly. The clamping assembly comprises a fixed clamp and a rotating structure, the fixed clamp is used for clamping a to-be-tested product, the rotating structure is connected with the fixed clamp, and the rotating structure is used for driving the fixed clamp to rotate along a set angle so as to adjust the angle of a plug on the to-be-tested product; the testing assembly comprises a moving structure, a testing sensor and a testing head, one end of the testing sensor is connected with the testing head, the other end is connected with the moving structure, and the testing head is adjusted through the moving structure to press the plug. According to the technical scheme, automatic testing is adopted, in the testing process, the pressure for testing is constant, the testing accuracy is higher, testing operation is easy, the used time is shorter, the efficiency is higher, manual operation is not needed in the testing process, and safety is higher.

The invention belongs to the field of metallogy and heat treatment, and relates to a martensite hot work die steel austenite grain size detection method. The method comprises the following specific steps: (1) primary sample preparation; (2) sample heat treatment; (3) secondary sample preparation; (4) corroding; and (5) taking a metallograph and grading the grain size. Compared with an existing method for detecting other grain sizes of the medium-carbon medium-alloy martensitic hot work die steel, the method has the advantages that an oxidation method, a corrosion method and a metallographic method are comprehensively applied, so that the test process is more environment-friendly, convenient and reliable; the problems that in the prior art, the austenite grain size of the martensite type hot work die steel is difficult to detect, the grain boundary obtained through a single oxidation method is prone to being abraded off, and the grain boundary is not clear in appearance are solved, the austenite grain size is effectively graded more accurately and reliably, and therefore the objective experiment result is truly reflected, and the test efficiency is improved. And an effective reference is provided for subsequent experiment detection and engineering application evaluation.

The present invention belongs to the field of flow field testing technology, and specifically relates to a probe for measuring all parameters of a two-dimensional steady-state flow field in the boundary layer of the inner wall of a casing, including a probe head, a temperature sensor, a heat-insulating seal, a temperature sensor cable lead-out channel, a pressure measuring hole, a pressure-leading pipe channel, a probe support rod, a temperature sensor cable and a pressure-leading pipe. The probe head is cylindrical, and a pressure measuring middle hole, a pressure measuring left hole and a pressure measuring right hole that are not connected to each other are opened on the windward surface. A trapezoidal groove is opened axially on the leeward side facing away from the pressure measuring middle hole. The temperature sensor is placed in the trapezoidal groove and is located in the low-speed separation zone on the leeward side of the probe head. The probe for measuring all parameters of a two-dimensional steady-state flow field in the boundary layer of the inner wall of the casing of the present invention can simultaneously measure the total temperature, total pressure, static temperature, static pressure, Mach number, deflection angle, speed and density of the two-dimensional steady-state flow field in the boundary layer of the inner wall of the casing, and has the characteristics of small size, large airflow insensitivity angle, high reliability, high spatial resolution, high measurement accuracy and fast response time.

This application relates to the field of insulation testing and discloses an insulation testing connection device and an insulation testing system. The insulation testing connection device includes a housing, a switch assembly, a control assembly, and a power supply assembly. The housing includes a wall and a first chamber and a second chamber formed by the wall. The wall includes terminals for the device under test and terminals for the testing instrument. The switch assembly is located in the second chamber and connected between the terminals for the device under test and the testing instrument, used to control the on / off state of the terminals for the device under test and the testing instrument. The control assembly is located in the first chamber and connected to the switch assembly. This solution addresses the problems of complex operation and susceptibility to errors. By setting the control assembly to control the on / off state of the switch assembly, and thus controlling the on / off state of the terminals for the device under test and the testing instrument, selective testing between the device under test and the testing instrument is performed without the need for repeated plugging and unplugging, simplifying operation.

The invention discloses a method for predicting tensile strength of a metal material through Brinell hardness, which comprises the following steps: preparing a Brinell hardness test sample, and carrying out standard Brinell hardness tests of different test forces F1 and F2 on the surface of the test sample to obtain Brinell hardness values HBW1 and HBW2; s2, calculating plastic displacements hr1 and hr2 corresponding to different rated test forces by using the Brinell hardness values HBW1 and HBW2; s3, calculating elastic displacements he1 and he2 corresponding to different rated test forces by using the elastic modulus E and the Poisson ratio v of the material; s4, calculating total displacements h1 and h2 corresponding to different rated test forces F1 and F2 by using the plastic displacements hr1 and hr2 and the elastic displacements he1 and he2; and S5, calculating the tensile strength Rm of the material by using the test forces F1 and F2 and the total displacements h1 and h2. According to the method, the theory and finite element simulation analysis are combined, the relation model between the Brinell hardness and the tensile strength is established, and the method is suitable for obtaining the tensile strength of the ductile metal material through Brinell hardness prediction when a tensile test cannot be carried out.

The utility model discloses an inflatable cushion detection device which comprises a rack composed of a plurality of hollow square tubes and a workbench arranged on one side of the rack, an automatic rolling mechanism is arranged on the top of the rack and comprises a movable frame, a driving motor, a rolling wheel, a rack and a gear, the movable frame is movably connected to the top of the rack, and the driving motor is arranged on the rack. The driving motor is fixedly connected to one side of the machine frame, the rolling wheel is movably connected to the front end of the movable frame, the rack is fixedly connected to the bottom of the movable frame, the gear is movably connected to an output shaft of the driving motor and meshed with the rack, and the driving motor, the rack and the gear form a driving mechanism. The rolling wheel is controlled to roll on the inflatable cushion through the driving mechanism, automatic rolling testing is carried out on the inflatable cushion, complex testing operation is simplified, and working efficiency is improved.

The present invention discloses a centrifugal load test device for a hub, which comprises a base, a connecting bracket, a hub, a blade simulation part, a pulley, a steel wire rope and a test oil cylinder, wherein the connecting bracket is fixedly connected to the top of the base, and the hub is fixed to the top of the connecting bracket; the blade simulation parts are grouped in pairs and are respectively relatively fixedly connected to the two sides of the hub; a pulley is rotatably provided at one end of the blade simulation part away from the hub, the test oil cylinder is divided into two groups and respectively corresponds to the two blade simulation parts one by one, a tension sensor is fixedly provided at the free end of the test oil cylinder, a connecting roller is provided on the elastic body of the tension sensor, and the pulley at one end of the hub adjacent to the test oil cylinder is fixedly connected by the steel wire rope; the test oil cylinder and the tension sensor are respectively electrically connected to an external servo control system, and the test of the present invention is convenient for testing and has accurate measurement results.

The present invention belongs to the technical field of flow field testing, and specifically relates to a multi-point full-parameter long-life measurement device for supersonic two-dimensional flow fields, which is composed of a device head and a device support rod. The device head includes seven test units, and each test unit is composed of a temperature sensor, a heat-insulating seal, a temperature sensor cable lead-out channel, a pressure measuring middle hole, a pressure measuring left hole, a pressure measuring right hole, a pressure pipe channel, a temperature sensor cable, and a pressure pipe. After the device of the present invention is calibrated by a calibration wind tunnel, a device calibration curve can be obtained; in actual measurement, based on the data measured by the pressure measuring hole and the temperature sensor, and then according to the calibration coefficient curve and formula obtained by the calibration wind tunnel calibration, through data processing, the total temperature, total pressure, static temperature, static pressure, Mach number, deflection angle, speed, and density parameters of the measured two-dimensional steady-state flow field can be obtained at the same time, which increases the life of the temperature sensor and the airflow insensitive angle range, and improves the measurement space resolution and measurement accuracy.

This invention provides a six-degree-of-freedom simulator for low-gravity landing cushioning, comprising a landing leg assembly, a frame, an IMU, an air-bearing ball bearing, and a connecting column forming an attitude control platform and a translational platform. Four landing leg assemblies are evenly arranged on the frame. An air-bearing ball bearing is located in the middle of the frame, with an IMU mounted above it. The lower part of the air-bearing ball bearing is connected to the translational platform via the connecting column. A control component is also provided on the frame, and the landing leg assemblies and IMU are connected to the control component. The planar air cushion of the translational platform is used for support on a simulated tilting platform, and the landing leg assemblies act on the simulated landing surface. This invention can record attitude changes and the force and torque values ​​of the landing legs during landing, and compare the experimental data with simulation results from a full-physics simulation test.

The present invention provides a universal impact tester for bicycles, comprising: a bottom plate in the tester is arranged on a bottom fixing plate, feet are installed at the four corners of the bottom fixing plate, a rear axle support frame is fixed on the bottom plate, an outer cover shell is fixed on the upper part of the bottom fixing plate, linear guide rods are fixed on the left and right sides of the inner part of the outer cover shell, impact weights, electromagnets, and lightweight rollers are fixed on the linear guide rods through linear bearings, a wire rope winch, a servo motor reducer integrated component, and an encoder driven wheel are fixed on the upper cover shell at the top of the outer cover shell, the servo motor is connected to the encoder, the wire rope winch is connected to the servo motor reducer integrated component, the wire rope on the wire rope winch bypasses the encoder driven wheel and is connected to the electromagnet from the lower wire rope release port of the upper cover shell; a touch screen is arranged on the control cabinet, the touch screen is connected to the encoder and the electromagnet, and the touch screen is connected to the test module. The universal impact tester for bicycles described in the present invention can accurately control the magnitude of the impact force, simplify the test operation, and improve the test efficiency.

The present invention belongs to the field of flow field testing technology, and specifically relates to a probe for measuring all parameters of a subsonic three-dimensional steady-state flow field, including a probe head, a temperature sensor, a convection heat exchange groove, an insulating seal, five pressure measuring holes, a pressure pipe channel, a probe support rod, a pressure pipe and a temperature sensor cable. The probe head is cylindrical, and the top of the cylinder has a concave ball socket structure perpendicular to the center line of the cylinder. The inner wall of the ball socket is provided with a pressure measuring middle hole, a pressure measuring upper hole, a pressure measuring lower hole, a pressure measuring left hole and a pressure measuring right hole that are not connected to each other, and a cross-shaped convection heat exchange groove is provided on the back of the ball socket. The temperature sensor is placed in the convection heat exchange groove and faces the center line of the pressure measuring middle hole. The probe of the present invention can simultaneously measure the total temperature, total pressure, static temperature, static pressure, Mach number, deflection angle, pitch angle, speed, density and other parameters of a subsonic three-dimensional steady-state flow field, and has the characteristics of small size, long life, wide airflow insensitive angle, high reliability, high spatial resolution and high measurement accuracy.

The utility model belongs to the technical field of metro vehicle detection, particularly relates to a relay testing device for a metro, and provides the following scheme for solving the problem that the testing efficiency is greatly reduced in the testing process due to the fact that testing personnel need to frequently disassemble, place and reinstall a relay shell during detection and testing operation. Comprising a test equipment body and a relay body, the top of the test equipment body is fixedly connected with a mounting frame, the mounting frame is provided with a convenient test module, and the top of the mounting frame is provided with a resistance test module. The relay testing device for the subway has the function of improving the testing efficiency of the relay for the subway, the external shell of the relay can be automatically disassembled and removed through the device when the relay testing device is used, reset installation can be carried out after testing, the operation complexity degree of testing operation is reduced, testing operation is simplified, and the testing efficiency is improved. And the use effect of the device is improved.

The present invention discloses a discharge mechanism for short-circuit discharge test of high-voltage and large-capacity DC support capacitors. The discharge mechanism is mainly composed of a first connection busbar, a second connection busbar, a copper braided wire, a hinge, a third connection busbar, a first fixed plate, a spring, a cylinder assembly, a support member and a second fixed plate. The second connection busbar, the copper braided wire and the hinge are connected and fixed by nuts, the hinge, the copper braided wire and the third connection busbar are connected and fixed by nuts, the copper braided wire is close to the outer surface of the hinge, the third connection busbar and the first fixed plate are connected and fixed by nuts, the two ends of the spring are respectively connected to the first fixed plate and the second fixed plate, the piston rod of the cylinder is connected to the support member by a latch, and the bottom of the support member is connected to the second fixed plate. The present invention has a simple structure and can meet the requirements of large current impact discharge test of DC support capacitors in terms of operation.

The utility model provides a temperature control performance test system comprising a clamp assembly comprising a limiting block and an adjusting piece, the limiting block is used for fixedly abutting against a chip platform, and the adjusting piece moves in at least a first direction to adjust the distance and abutting force between the adjusting piece and the chip platform so as to adjust the temperature of the chip platform; the limiting block and the adjusting piece are used for jointly clamping and fixing the chip platform; the electric control assembly is used for being electrically connected with the chip platform and outputting a temperature control signal to control the chip platform to be heated or cooled; the data processing assembly is electrically connected with the electric control assembly and used for collecting and analyzing temperature control data of the chip platform in real time, and the temperature control data comprises the current temperature value of the chip platform. The temperature control performance test system is simple in overall system structure, easy to test and operate and high in compatibility.

The present invention discloses a method and device for obtaining differential coverage of application code, and relates to the field of computer technology. A specific implementation of the method includes: based on a basic image, deploying an application according to a tested code, testing the deployed application, recording the execution track of the tested code, and monitoring and counting the execution track by a coverage test tool agent included in the basic image; based on a version control algorithm, compiling the tested code through a project object model to obtain a class file; running a structure analyzer on the class file to obtain differential code between the tested code and the baseline code; mapping the differential code and the execution track to the tested code to obtain the differential coverage of the application code. This implementation improves the efficiency of software development and testing.

The present invention relates to a double-sided device testing device and method, the device comprises a test frame, a test needle plate, a test tray cover plate, a test adapter plate, an adapter plate with springs, a test tray and a test base, the test tray is provided with grooves for embedding two adapter plates with springs and a test adapter plate at positions corresponding to the positive and negative electrode pads and connectors of a PCB board to be tested, the corresponding adapter plates with springs and the test adapter plate are embedded in the grooves, so that when the PCB board is installed on the test tray, the two adapter plates with springs are respectively in contact with the positive and negative electrode pads of the PCB board, and the test adapter plate is snap-connected with the connector of the PCB board to transfer the test point on the front side of the PCB board to the back side. The device and method are conducive to simplifying the test operation, improving the test efficiency, and reducing the tooling design, processing difficulty and manufacturing cost.

The invention relates to the technical field of motor speed measurement, in particular to a motor rotating speed working curve acquisition method and device for a rotating Stirling cryocooler, and the method comprises the steps: building a rotating Stirling cryocooler motor rotating speed acquisition test bed, obtaining a refrigerator assembly current working curve through a data acquisition system, and obtaining a rotating speed working curve of the rotating Stirling cryocooler based on the current working curve; acquiring a motor working mode switching time point; according to the target method, motor rotating speeds of the refrigerator in different working states are determined; and generating a motor rotating speed working curve based on the motor working mode switching time point and the motor rotating speeds of the refrigerator in different working states. By applying the method, the rotating speed working curve of the direct-current brushless motor in the working process of the rotating Stirling cryocooler can be established on the premise that a motor shell is not disassembled.

The invention discloses a test method for testing the durability of an HL tire bead. The test method comprises the following steps: mounting a tire on a rim and inflating; the tire rim assembly is parked at the specified environment temperature; mounting the tire and rim assembly on a testing machine; the method comprises the following steps: selecting typical endurance test load and air pressure of an HL tire in combination with HL tire market use conditions, carrying out a static load test, obtaining deformation conditions of the tire under different test loads and air pressures through static load analysis, adjusting and determining test conditions, and setting an HL tire bead endurance test program; adjusting the test air pressure and starting the testing machine to automatically run until the tire is damaged and the machine is stopped or the program operation is finished; and checking the appearance of the tire, dismounting the tire and ending the test. According to the method, the fault of the tire bead part of the HL tire can be rapidly and accurately detected, and compared with an existing method, the method does not need to grind a tire tread and do not need to punch a test hole in the tire shoulder part of the tire, so that the test operation is simple, and the time and the cost are saved.

The invention relates to a comprehensive fatigue test tool for a scaling pod propeller davit, which is characterized in that a vertical plate of a fixed support member is fixedly connected with the scaling pod propeller davit through a fastener, the scaling pod propeller davit is fixedly connected with a simulation connection member, the simulation connection member is connected with an adapter through a pin shaft, and the adapter is fixedly connected with the scaling pod propeller davit. And an MTS fatigue testing machine is connected through the adapter. According to the invention, on the premise that a fatigue testing machine is not changed, the fatigue test of the davit sample piece in multiple modes can be realized by rotating the angles of the davit sample piece, the adapter and the simulation connecting component, and the actual stress condition of the davit of the pod propeller can be really simulated; the size of the load applied by the fatigue testing machine can be adjusted through the data of the strain gauges, so that the load value borne by each key part of the davit sample piece meets the test requirement, the fatigue testing machine does not need to be replaced, and if a fatigue life test under multi-mode superposition needs to be carried out, the davit sample piece and the adapter are rotated by a proper angle.

The invention discloses an OTA performance test method and system for an antenna of an unmanned aerial vehicle, relates to the technical field of unmanned aerial vehicle testing, and solves the technical problem that the OTA performance of the antenna of the unmanned aerial vehicle is difficult to accurately test. The method comprises the steps that a simulation base station is placed above a tested unmanned aerial vehicle, and the tested unmanned aerial vehicle is in a ground take-off state; rotating the controllable rotating table for multiple times at a first pitch angle and / or a preset azimuth angle to obtain multiple groups of equivalent omnidirectional radiation power values EIRP, and calculating a circumferential total radiation power value CTRP and a power coverage rate in a ground takeoff state; the simulation base station is placed below the tested unmanned aerial vehicle, and the tested unmanned aerial vehicle is in an air flight state; and rotating the controllable rotating table for multiple times at a second pitch angle and / or a preset azimuth angle to obtain a plurality of groups of equivalent omnidirectional radiation power values EIRP, and calculating a circumferential total radiation power value CTRP and a power coverage rate in an air flight state. The antenna OTA performance of the unmanned aerial vehicle in the ground take-off state and the high-altitude flight state is tested, and the antenna OTA performance can be obtained more accurately.

The present invention belongs to the field of flow field testing technology, and specifically relates to a probe for measuring all parameters of a transonic three-dimensional steady-state flow field, including a probe head, a temperature sensor, a convection heat exchange hole, an insulating seal, a temperature sensor cable lead-out channel, a pressure measuring hole, a pressure pipe channel, a probe support rod, a pressure pipe and a temperature sensor cable. The probe head is cylindrical, and a truncated cone structure extends from the top of the cylinder perpendicular to the center line of the cylinder. A pressure measuring middle hole is provided on the top surface of the truncated cone, and mutually unconnected pressure measuring upper holes, pressure measuring lower holes, pressure measuring left holes and pressure measuring right holes are evenly provided on the side of the truncated cone. Six circular convection heat exchange holes are provided on the leeward side of the probe head facing away from the truncated cone, and are distributed in the low-speed separation zone on the leeward side of the probe head. The probe of the present invention can simultaneously measure the total temperature, total pressure, static temperature, static pressure, Mach number, deflection angle, pitch angle, speed and density of a transonic three-dimensional steady-state flow field, and has the characteristics of small size, large airflow insensitive angle, high reliability, high spatial resolution and high measurement accuracy.

The present invention discloses a holographic joint monitoring method and device for the prestress and internal defects of an existing structure. By installing a piezoelectric ultrasonic transducer at the end of the prestressed tendon of an internal prestressed concrete structure, an ultrasonic guided wave method is used to detect the internal corrosion and grouting void defects of the structure. The method has the advantages of long detection distance, high detection accuracy, fast detection speed, and no need to repeatedly move the transducer. The present invention takes into account the influence of different prestress levels on the ultrasonic guided wave group velocity, and uses the grouting void coefficient and the corrosion coefficient to achieve simultaneous monitoring of the above two types of damage; finally, the present invention combines holographic simulation means to restore the monitoring signal and damage characteristics and improve the monitoring accuracy. Therefore, the joint monitoring method of the present invention has a simple process, is easy to operate, and has a low cost. It can be used for the detection of prestressed tendons, corrosion, and grouting voids in internal prestressed concrete structures of different specifications. It has strong applicability and is conducive to popularization and application.