2621results about How to "Improve test accuracy" patented technology

The invention discloses an intelligent software testing method and system based on automatic script generation, and relates to the technical field of software testing, and the method comprises the following steps: deploying a distributed data acquisition probe, dynamically adjusting sampling frequency, collecting software operation data, and extracting data features based on a deep learning model; based on the data features, establishing a behavior pattern classification system, and mapping behavior patterns to realize hierarchical behavior classification; the method comprises the steps of constructing a test scene, generating test data, executing a test task, monitoring a test execution state in real time, calculating a test efficiency index, evaluating and feeding back a test effect, and dynamically adjusting a feature extraction strategy. According to the method, deep learning and reinforcement learning technologies are utilized, accurate recognition and classification of software behavior modes are achieved, and comprehensiveness and effectiveness of testing are guaranteed through multi-dimensional coverage rate analysis and a closed-loop optimization mechanism; and meanwhile, the automation level and the intelligent degree of software testing are remarkably improved, and a powerful guarantee is provided for improving the software quality.

The invention relates to the technical field of wire harness intelligent evaluation, in particular to a wire harness connection performance intelligent test method and system. The method comprises the following steps: collecting wire harness test data generated by a wire harness test device and a wire harness sensor in real time through an edge computing node; performing electrical performance detection extraction and mechanical performance detection extraction according to the wire harness test data to respectively obtain wire harness electrical performance detection data and wire harness mechanical performance detection data; performing electrical performance deep evaluation according to the wire harness electrical performance detection data to obtain wire harness electrical performance evaluation data, and performing mechanical performance deep evaluation on the wire harness mechanical performance detection data to obtain wire harness mechanical performance evaluation data; and performing environment pressure cross reference according to the wire harness electrical performance evaluation data and the wire harness mechanical performance evaluation data to obtain wire harness connection performance test evaluation data. According to the method, the accuracy of wire harness performance evaluation is improved, and reliable performance data can be obtained in different application fields.

The invention discloses a method for testing the dynamic response characteristic of a power supply by simulating the load change of the power supply, and relates to the technical field of power supply testing, and the method comprises the steps: generating a simulation load change sequence based on a preset load change mode, and enabling each load value to correspond to a specific time point; inputting the simulated load change sequence into the power supply to be tested, and controlling the power supply to be tested to work according to the simulated load change sequence by using the multi-channel synchronous test system so as to simulate the load change in the actual use process; a high-precision data acquisition module is used for acquiring and recording output voltage values, output current values and corresponding timestamps of the to-be-tested power supply under different load conditions at a sampling rate not lower than a first set value, and a dynamic response data set is formed; and processing the dynamic response data set by using a preset data calibration algorithm, and calculating dynamic response parameters of the to-be-tested power supply at each load change point. The motor power supply testing device has the effect of improving motor power supply testing precision.

The invention relates to the technical field of audio testing, and discloses an intelligent audio testing system frequency response analysis method, device and equipment, and the method comprises the steps: carrying out the audio parameter initialization of an intelligent audio testing system, and obtaining a testing parameter matrix and an excitation signal; performing dual-channel acquisition and time-frequency feature extraction to obtain a time-frequency feature data set; executing double-branch processing of time domain noise reduction and frequency domain enhancement to obtain a purified feature data set and a feature weighting matrix; performing segmented recursive calculation and feature aggregation to obtain a frequency response feature vector; decomposing the frequency response feature vector according to a test frequency band, and performing environment compensation and nonlinear calibration to obtain a standard frequency response data set; and inputting the standard frequency response data set into the deep neural network for feature recognition and mode classification to obtain a frequency response curve and a phase characteristic curve, thereby improving the test precision, the anti-interference capability, the automation degree and the adaptability of the intelligent audio test system.

The invention relates to the technical field of textile tension tensile test, in particular to a tensile degree detection mechanism for textile processing, comprising: a positioning base; a closed machining rack is assembled on the positioning base in an annular angle adjusting mode, and a stretching annular transmission structure and a longitudinal clamping stretching structure are symmetrically assembled along the middle of the inner side of the closed machining rack. The stretching annular transmission structure is matched with the longitudinal clamping stretching structure to carry out stretching detection on the cut textile; the device has a dynamic stretching test function, a servo motor drives a worm, a worm gear, a nut and a screw to perform spiral transmission, so that the clamping plate frames clamping textile cloth are far away from each other to perform stretching test, and a stretching annular transmission structure is matched with the servo motor rotating in the opposite direction to realize twisting stretching test on the textile cloth; more complex stress conditions are simulated, and the equipped monitoring camera is used for carrying out visual picture recording on textile cloth in a stretching test, so that a basis for real-time test monitoring and subsequent analysis is provided.

The invention discloses an electrostatic discharge immunity automatic test management method and system. The method comprises the steps that real-time environment state data in an experimental environment are collected in real time, then redundancy mechanism and check algorithm processing is carried out, and discharge parameters of an electrostatic generator are calculated and adjusted in real time through a multi-dimensional nonlinear self-adaptive control algorithm; performing electrostatic discharge based on the adjusted discharge parameters of the electrostatic generator, generating electrostatic interference of specified parameters, simulating an actual scene of electrostatic discharge, further transmitting a generated electrostatic discharge interference signal to test equipment, and generating a corresponding response signal; the response signals and the interference signals are preprocessed and then subjected to deep spectrum analysis, key features are extracted, and the immunity of the test equipment is intelligently evaluated through a neural network model. The control precision of the electrostatic generator is improved, the electrostatic generator can dynamically adapt to the change of the experimental environment, and it is ensured that the discharging condition is always in the optimal state.

The invention discloses an automatic test method based on natural language processing, which comprises the following steps: S1, generating a test case: performing semantic analysis on a software requirement document or a test requirement by utilizing a natural language processing technology, extracting key information, and combining the extracted test information and a preset test case template to generate a test case; a preliminary test case is automatically generated; the key information comprises a test purpose, an operation step and an expected result; s2, analyzing the test case; s3, generating a test script; s4, executing the test script; and S5, analyzing a test result. According to the automatic test method based on natural language processing, the test requirements described by the natural language can be automatically analyzed, the test case is generated, the test is automatically executed, and the test report is finally generated, so that the software test efficiency is improved, the workload of manually compiling and executing the test case is reduced, and the test efficiency is improved. And the coverage rate and the accuracy of the test are improved, more software defects can be found, and the quality of software products is guaranteed.

The invention relates to the technical field of semiconductor power device testing, in particular to a dynamic reverse bias testing method and system for a semiconductor power device, which can accurately evaluate the performance of the device under a dynamic reverse bias condition and improve the testing efficiency and accuracy. The method comprises the following steps: acquiring a plurality of electrical characteristic data of a to-be-detected semiconductor power device to obtain an electrical characteristic data set; inputting the electrical characteristic data set into a dynamic reverse bias test model to obtain a first dynamic reverse bias test result; transmitting a fast changing backward voltage pulse signal to the to-be-detected semiconductor power device to obtain an output signal after the backward voltage pulse signal passes through the to-be-detected semiconductor power device; judging whether the output signal exceeds a preset abnormal threshold value or not; if not, outputting the first dynamic reverse bias test result as a dynamic reverse bias test result of the semiconductor power device; and if yes, extracting the obtained abnormal output signal, and inputting the abnormal output signal into the dynamic reverse bias failure analysis model.

The invention discloses a garment fabric color fastness detection method and system, and relates to the technical field of fabric detection.The method comprises the steps that initial color information and initial texture information of a to-be-detected garment fabric are integrated; simulating the action factors of the to-be-detected garment fabric in the various preset scenes so as to perform color fastness testing on the to-be-detected garment fabric in the various preset scenes; wherein the action factors in the multiple preset scenes comprise friction, water washing, raining, insolation, illumination, seawater impregnation, saliva impregnation, water stains and sweat stains; collecting a reference color information set and a reference texture information set of the to-be-detected garment fabric subjected to the color fastness test in the various preset scenes; analyzing the initial color information and the reference color information set after the color fastness test in various preset scenes; and evaluating the color fastness of the to-be-detected garment fabric according to the calculated color difference condition and the change condition of the surface structure of the to-be-detected garment fabric.

The invention discloses an underground compressed air energy storage cycle test system and a test method thereof, and the system comprises a triaxial ground stress loading assembly, a model box, a heat exchanger assembly, a pressurization assembly and a chamber. The model box is arranged in the triaxial ground stress loading assembly; the heat exchanger assembly comprises a heat exchanger outer unit and a heat exchanger inner unit, the heat exchanger inner unit is arranged in the model box, and the heat exchanger outer unit communicates with the chamber; the chamber is arranged in the model box and further communicates with the pressurizing assembly. A surrounding rock material layer is further filled in the model box and outside the chamber, and the volume of the accommodating cavity in the model box is adjustable; the chamber comprises a cylindrical lining, a first flange plate and a second flange plate, the first flange plate and the second flange plate are arranged at the two ends of the cylindrical lining, an air bag is arranged in the cylindrical lining, and the heat exchanger inner unit is arranged in the air bag. The heat exchanger indoor unit and the air bag are communicated with the corresponding heat exchanger outdoor unit and the pressurizing assembly through the corresponding through channels in the second flange plate respectively. The invention aims to improve the test accuracy.

The invention discloses a method for testing the content of platinum in a platinum compound solution, and belongs to the technical field of analytical testing. According to the test method, an ammonium chloride precipitation gravimetric method is replaced by a hydrogen reduction gravimetric method, platinum ions in a platinum compound solution are reduced into elemental platinum in a hydrogen reduction mode, and the content of platinum in the solution is calculated by weighing the weight of a reduced platinum sinter and subtracting the content of impurity elements in the platinum sinter at the same time. According to the method, the platinum content in the platinum compound solution can be accurately and quantitatively analyzed, the operation process is simple, good repeatability is achieved, the range of multiple analysis results of the same sample is smaller than or equal to 0.05% and is far lower than the repeatability limit 0.2% of a national standard method, the analysis accuracy is guaranteed, and meanwhile the analysis efficiency is greatly improved.

The invention discloses a lithium battery instantaneous heat production power measurement method, which comprises the following steps of: spraying blackbody paint on the surface of a lithium battery sample, and placing the lithium battery sample on a heat insulation bracket of a constant-temperature box; the lithium battery sample is connected with a charging and discharging device, and surface temperature change in the heat production process of the lithium battery sample and surface temperature drop data after charging and discharging are measured through a thermal infrared imager; calculating an equivalent surface heat exchange coefficient of the lithium battery sample according to the surface temperature drop data of the lithium battery sample; and establishing a thermal simulation model according to the thermophysical parameters of the lithium battery, and dynamically optimizing the heating power data according to the goodness of fit between the simulation temperature change and the actually measured temperature change to obtain the instantaneous heat production power data of the lithium battery sample. According to the method, the infrared non-contact temperature measurement technology is used for recording the surface temperature rise data of the lithium battery in the charging and discharging states, the thermal simulation model is established according to the thermophysical parameters, the instantaneous heat production power of the lithium battery is calculated by using the dynamic parameter optimization algorithm, the calculation process is rapid, and the test precision is high.

The invention discloses a trigger test device with a calibration function and a test method. The test device comprises a bottom plate; the device comprises a mounting module, a detection assembly and an adjusting assembly, the detection assembly comprises a probe and a pressure sensor matrix, the pressure sensor matrix is arranged on the probe and covers a detection part of the probe, and the pressure sensor matrix is used for detecting the offset and the pressure value between the detection part and a to-be-detected area; the probe is driven by the adjusting assembly to carry out displacement and angle adjustment on the X axis, the Y axis and the Z axis, the offset between the detection part and the to-be-measured area is corrected, and the measurement precision is improved.

The invention relates to a non-signaling test-based frequency offset calibration method, system and device and a medium, and the method comprises the steps: carrying out the parallel non-signaling frequency offset test of a plurality of target chips, collecting the output waveforms of the target chips, and determining the frequency offset values of the target chips according to the output waveforms; performing deviation analysis on the frequency deviation value, and calculating a corresponding frequency deviation calibration value based on the frequency deviation value and a preset frequency calibration coefficient under the condition that the frequency deviation value reaches a preset frequency limit range; writing the frequency offset calibration value into a corresponding target chip, and performing parallel frequency offset calibration; and carrying out calibration degree verification on the target chip after frequency offset calibration so as to confirm whether the frequency offset value of the target chip accords with a preset standard frequency. The method and the device have the effect of improving the frequency offset calibration efficiency of the chip.

The invention discloses a large indoor direct shear tester for geotechnical engineering, and relates to the technical field of geotechnical shear tests.The large indoor direct shear tester for geotechnical engineering comprises a sample container system, a shear loading system, a data acquisition control system and a base protection system.The sample container system is formed by splicing a plurality of modular sample containers; the modularized sample container is connected through a detachable connecting fastener, a replaceable lining plate is arranged in the container and is used for adjusting the size and interface conditions of the sample container, and an embedded porous pressure plate is arranged at the bottom of the container and is used for measuring the pore pressure change in the sample seepage process. By installing the base, the protection system and the normal loading system, the function of uniformly applying normal force in the shearing process is achieved, the problem that the test result is affected by eccentric errors in the shearing process is solved, and the precision and stability of the shearing test are improved.

The invention discloses a semiconductor probe card electrical parameter extraction method and system based on an MEMS technology, and relates to the technical field of semiconductor testing, the method comprises the following components: initialization setting: aligning an MEMS probe card to a target test area on a wafer to be tested, firmly fixing the probe card and the wafer together by using a mechanical clamping device, and setting the MEMS probe card and the wafer to be tested; by integrating the decision tree model and the genetic algorithm, accurate mapping and optimization of semiconductor wafer surface features and optimal probe contact parameters are achieved, the intelligent level of testing is improved, the test time is shortened, the test efficiency is improved, and the test cost is reduced. The self-adaptability and stability of the testing process are remarkably enhanced, real-time adjustment of probe contact parameters is ensured through a dynamic monitoring and closed-loop control mechanism, the testing error is effectively reduced, the testing precision is improved, the optimal contact parameter combination is found through an optimization algorithm, the testing period is further shortened, and the testing efficiency is improved.

The invention belongs to the technical field of industrial robot body rigidity testing, and particularly relates to a large-load robot transmission rigidity calibration device and method. The device comprises a switching frame, a fixed cross beam, a test torque cross beam, a counterweight mechanism, a measuring instrument, a locking mechanism and a position changing machine, the switching frame is connected with a position changing rotating disc of the position changing machine, a to-be-calibrated robot joint is installed on the switching frame, and an output shaft of the to-be-calibrated robot joint and the position changing rotating disc are coaxial. An input shaft of the to-be-calibrated robot joint is locked through a locking mechanism; the test torque cross beam is connected with an output shaft of a to-be-calibrated robot joint, and counterweight mechanisms are arranged at two ends of the test torque cross beam; the fixed beam is connected to an output end shell of a to-be-calibrated robot joint, the measuring instrument is arranged at one end of the fixed beam, one end of the test torque beam is loaded, the torsion angle of the other end of the test torque beam is measured through the measuring instrument, and therefore rigidity calibration of the robot joint is achieved. The rigidity testing device is simple in structure, capable of effectively controlling rigidity testing errors, accurate in testing result and low in cost.

The invention discloses a simulation test device and method of a battery management system and a readable storage medium, and belongs to the technical field of vehicle test equipment.The simulation test device of the battery management system comprises an upper computer system and a simulation platform, the simulation test device of the battery management system generates a test signal through the upper computer system, and the test signal is transmitted to the simulation platform through the simulation platform; a test signal is sent to the simulation platform, the simulation platform operates a simulation work model through the vehicle simulation module according to the test signal and generates model data, and the board card module generates a working condition simulation signal according to the model data and then sends the working condition simulation signal to the battery management system; the battery management system can generate test data according to the working condition simulation signal, and the upper computer system generates a test report according to the test data, so that whether the thermal runaway function operates normally or not is judged conveniently, the thermal runaway function does not need to be tested by a real vehicle, automatic test is realized, and test accuracy and test efficiency are effectively improved.

The invention provides an automatic testing method and system for full-performance electromagnetic compatibility immunity, relates to the technical field of electronic equipment testing, and aims to accurately simulate electromagnetic interference signals and propagation characteristics thereof through real-time monitoring and data preprocessing in combination with a dynamic modulation function and a recursive coupling model, so that the testing precision and reliability are improved. By introducing a global feedback mechanism and disturbance integration, the immunity evaluation is dynamically optimized, the stable response of the tested equipment under various interferences is ensured, and the comprehensiveness of the evaluation is enhanced. Besides, a self-adaptive dynamic response model is further designed, the test system can dynamically adapt to response changes of equipment through self-adaptive adjustment of test parameters, the test efficiency is improved, errors are reduced, and the advantages of high efficiency and accuracy are shown in an electromagnetic compatibility test.

The invention relates to the field of battery module reserved gap testing, in particular to a battery cell reserved gap determination method and a battery pack. According to the determination method, a battery cell is circulated without external pressure, and the thickness change corresponding to the battery cell circulation diving inflection point position is tested; the reasonability of the design width of the reserved gap of the battery cell is verified through the numerical value of the thickness change, and a method for determining the size of the reserved gap is provided; the method for determining the reserved gap of the battery cell has the advantages that the test accuracy is high, the judgment method is simple, the design width of the reserved gap of the battery cell can be quickly found, and it is guaranteed that the expansion force and the service life of the battery cell in a designed module are both within a controllable range, the module design time can be shortened, and the use safety and stability of the battery module are guaranteed; the reserved gap of the battery pack is determined through the method for determining the reserved gap of the battery cell, so that the cycle life of the battery pack is prolonged, and the stability of the battery pack is improved.

A compressed air energy storage underground cavern model test system designed according to a preset joint disclosed by the present invention comprises a simulation cavern, a loading system, a measurement system and a protection device, the measurement system comprises a plurality of temperature sensors, a plurality of pressure sensors, a plurality of crack meters and a plurality of optical fiber gas sensors, and the simulation cavern comprises a steel cylinder sealed by a sealing door. A deformation simulation layer, a lining layer, a leveling layer, a geotechnical cloth layer and a flexible sealing layer are arranged on the inner wall of the steel cylinder, a plurality of longitudinal exhaust pipelines are embedded in the joint of the deformation simulation layer and the lining layer, a plurality of exhaust pipes are inserted into the cylinder wall of the steel cylinder, each exhaust pipe is communicated with one longitudinal exhaust pipeline, a plurality of longitudinal prefabricated cracks are distributed in the lining layer, and the longitudinal prefabricated cracks are communicated with the geotechnical cloth layer. A crack meter is embedded in the middle of each longitudinal prefabricated crack, and the simulation cavern is communicated with the loading system through an air inlet in the sealing door. The test system is low in cost, convenient to operate, large in scale, comprehensive in test item, high in test precision and high in reference value for actual engineering.

The invention relates to the technical field of geotechnical engineering testing, in particular to a gravity type multifunctional in-situ testing device and a gravity type multifunctional in-situ testing method, and the testing device consists of three parts, namely a penetration system, a shearing system and a power system. The penetration system comprises a spindle-shaped full-flow penetration probe and a motion sensor. The shearing system comprises two arc-shaped shearing plates, a power shaft and a torque sensor. The power system comprises a moving empennage, a motor, a storage battery and an information collector. The device is hoisted to a test point to be thrown, so that the device freely falls and can penetrate into a soft soil layer, motion parameters of the device in the process of penetrating into the soft soil are tested and recorded, and the characteristics of the soil layer are obtained; and the arc-shaped shear plate is opened and rotated, so that the undrained shear strength of the soft soil layer is obtained. The test platform is convenient to arrange and high in test efficiency and accuracy. Excessive manpower is not needed, and the automation degree is high. Therefore, the technical problems that a test platform of an existing in-situ test device is difficult to arrange and low in automation degree can be solved.

The invention provides a horizontal sliding bearing test bed, which belongs to the field of sliding bearing safety operation and detection and comprises a main transmission system, a driving system, a radial loading system, a heating system and a hydraulic system. A sliding bearing seat in the radial loading system is inversely fixed on a lower loading plate and is detachably sleeved and fixed on a test bearing, and a test bed applies pressure to the lower loading plate through a hydraulic cylinder to apply radial load to a test sliding bearing. A rotary swing hydraulic oil cylinder in the main transmission system provides power to test the horizontal sliding bearing. The hydraulic system is connected with the rotary swing hydraulic oil cylinder and the radial loading oil cylinder and can achieve closed-loop control over torque and radial loading force. The heating system simulates a high-temperature working condition through a heating box, and a test bearing can be set to be tested at a specific high temperature. According to the invention, large load detection can be realized, working condition simulation is accurate, data such as bearing working torque and service life can be detected, and comprehensive and multi-size adaptability is realized.

The invention belongs to the technical field of PCB detection equipment, particularly relates to a flying probe test probe deviation compensation method, device and equipment and a medium, and provides a method for directly calculating and compensating deviation through a flying probe machine camera system. According to the method, the center of the driving end of the probe serves as a reference point, the probe is controlled to move in the preset direction till the visual center position coincides with the preset position of a target plate, related coordinates and distance values are obtained through a camera system, the motion compensation value of the probe to be compensated is calculated and determined, and finally the driving end is controlled to move to complete deviation compensation. According to the invention, external tools are not needed, rapid and accurate needle point deviation compensation is realized, and the test efficiency and precision of the flying probe machine are improved.

The embodiment of the invention discloses a wafer test result generation method and device, electronic equipment and a storage medium, and relates to the technical field of semiconductor chips, and the method comprises the steps: obtaining a plurality of test files generated by carrying out multiple tests on the same wafer; integrating the plurality of test files, and only reserving an optimal test result for a plurality of test results of the same semiconductor chip on the wafer; and obtaining a final test result of the wafer based on the integrated test file. The technical scheme provided by the embodiment of the invention can be suitable for a wafer test scene, and can solve the problems of low wafer test data processing efficiency and inaccurate test result extraction in the prior art.

The invention discloses lithium battery safety performance detection equipment, and relates to the technical field of detection equipment. A fixing mechanism is arranged above the rotating plate, a vibrating mechanism is arranged between the fixing mechanism and the rotating plate, a supporting frame is fixedly connected to the upper end of the workbench, a sealing cover is arranged on the inner side of the supporting frame, an impacting mechanism is arranged on the rear side of the sealing cover, and an air blower, a heater and a refrigerating mechanism are arranged below the workbench. The equipment integrates a plurality of testing functions such as rotation, vibration, falling and impact, can comprehensively evaluate the safety performance of the lithium battery under various extreme conditions, and improves the testing efficiency and accuracy; in the fixing mechanism, clamping plates on the two sides are matched to clamp and fix the lithium battery, and the distance between the two clamping plates is adjustable, so that different types of batteries can be tested conveniently. And by adopting the design of the sealing cover, the fixing mechanism and the like, the stability and the safety of the lithium battery in the testing process are ensured, and the pollution and the damage to the surrounding environment in the testing process are prevented at the same time.

The invention relates to the technical field of FFC wire rod conductivity testing, in particular to testing equipment and a testing method for FFC wire rod processing. Comprising a base and supporting legs on the lower surface of the base. The upper surface of the base is fixedly connected with a vertical plate; one side of the vertical plate is fixedly connected with a controller; an upper driving roller and an upper driven roller are rotationally connected to the side, away from the controller, of the vertical plate at the same horizontal height. The upper driving roller is driven by an upper motor; the outer walls of the upper driving roller and the upper driven roller are in transmission connection with an upper conveying belt; a lower driving roller and a lower driven roller are rotationally connected to the side, deviating from the controller, of the vertical plate at the same horizontal height; according to the FFC wire testing device, FFC wires are continuously placed through the storage grooves in the lower conveying belt, and the testing device can continuously test the FFC wires through transmission of the upper conveying belt and the lower conveying belt, so that the testing is more continuous, and the testing efficiency of the existing processed FFC wires is improved.

The real-time blood glucose monitoring device comprises a shell, and the shell is provided with a containing space and a mounting opening communicating the containing space with the outside; the monitoring assembly is arranged in the accommodating space and comprises an electronic unit and a detection unit; the puncture assembly is arranged in the containing space and comprises a puncture part, and the puncture part partially penetrates through the monitoring assembly so that the detection unit can be partially contained in the puncture part; the bottom cover is detachably connected with the shell to seal the mounting opening, the bottom cover is provided with a matching wall which is arranged in the containing space in a protruding and extending mode, the matching wall is provided with a first sealing piece which abuts against the bottom face of the monitoring assembly in a sealing mode to form a sealing cavity, and part of the detection unit and part of the puncturing piece are arranged in the sealing cavity; the area defined by the first sealing piece is smaller than the area of the cross section of the sealing cavity. And the cross section area of the sealing cavity is larger than the area enclosed by the first sealing element, so that the airtightness test is easier to carry out on the basis of ensuring the sealing effect, and the test precision and accuracy are improved.

The invention provides an automatic driving test system and method for a special vehicle, and the system comprises an environment simulation module which is used for constructing different simulation scenes required by the test of the special vehicle; the sensor simulation module is used for simulating sensor data collected by a sensor in the special vehicle based on the simulation scene; the controller is used for controlling the automatic driving system to perform automatic driving test on the special vehicle model in the same simulation scene according to the sensor data in the simulation scene; the monitoring module is used for monitoring operation data of the automatic driving system in the test in the simulation scene; and the data processing module is used for receiving test data generated by different simulation scenes in the test, performing performance analysis on the automatic driving system according to the test data and generating an optimization report of the automatic driving system based on an analysis result, and the test data comprises simulation scene data, sensor data and operation data. Therefore, the development efficiency and the test precision of the automatic driving technology of the special vehicle are remarkably improved.

The invention belongs to the field of thermostatic bath cavities, and provides a thermostatic bath cavity structure and a magnetic type surface temperature sensor calibration system. Wherein the thermostatic bath cavity structure comprises a stirring cavity and a working cavity which are mutually independent; connecting channels are arranged at the upper parts and the lower parts of the stirring cavity and the working cavity; a temperature sensor is arranged in each connecting channel and is used for detecting the temperature field change condition in the stirring cavity and transmitting the temperature field change condition to the controller; the top of the working cavity is connected with a sunken flange plate, a working surface is arranged in the sunken flange plate, and at least two detected sensor stations are distributed on the working surface; a stirring mechanism, a heating coil and a refrigerating coil are arranged in the stirring cavity; the controller is used for controlling the working states of the stirring mechanism, the heating coil and the refrigerating coil according to the temperature field change condition in the stirring cavity, so that the temperature field in the stirring cavity is uniformly maintained at a set temperature.