29 results about "Test complexity" patented technology

The invention relates to a thermal management system test bench and a test method, and the method comprises the steps: enabling a direct cooling heat management system, a direct cooling battery pack and a heat supply ventilation and air conditioning system to form a linkage test system through the cooperative arrangement of a high and low temperature working condition environment simulation device, an external radiator simulation device, a charge and discharge simulation system and a passenger compartment environment simulation device; core working conditions related to vehicle thermal management can be reproduced in a laboratory scene without depending on a real vehicle, and the limitation that a traditional vehicle test is limited by environmental conditions and high in complexity is broken through. The cooperative performance verification and thermal management calibration work of the direct cooling and heating management system, the direct cooling battery pack and the heat supply ventilation and air conditioning system can be carried out without waiting for the completion of the assembly of a real vehicle, thereby reducing the dependence on the whole vehicle test, reducing the cost investment caused by the high complexity of the whole vehicle test and the difficulty in environmental adaptation, and improving the test efficiency. The test period prolonging caused by the limitation of the real road test environment is avoided, and efficient and controllable test support is provided for the development and verification of the direct cooling and heating management system.

This invention relates to the field of aircraft strength testing technology, and discloses a load reduction device and method for aircraft wing top-mounted strength testing. It utilizes the lever principle to apply a downward load reduction load to the wing to balance the upward top-mounted load borne by the wing top point, thus reducing the overall load on the aircraft to zero and achieving the purpose of load reduction. This invention uses the lever principle to reduce the output load of the hydraulic actuator, achieving small load balancing of extremely large loads. Furthermore, for extremely large single-point loads at a single top point, only a few load reduction load application points need to be applied, reducing the loading channels for the load reduction load and lowering the test complexity. By using the small load of the hydraulic actuator to balance the extremely large load at the top point, the safety and reliability of the test are improved, solving the reliability and safety problems of balancing extremely large single-point loads in wing top-mounted strength testing.

The invention discloses a vehicle-mounted audio performance testing method, system and device and a storage medium, and relates to the technical field of automatic testing, and the method comprises the steps: an upper computer sends a parameter setting instruction to a signal generator, and enables the signal generator to generate and output a radio frequency signal to a to-be-tested model machine; meanwhile, an ADB instruction is sent to the prototype, the prototype is controlled to respond to the radio frequency signal to execute function operation, and an audio signal is generated and output. The upper computer sends a control instruction to the audio analyzer, so that the audio analyzer receives the audio signal and measures the audio signal to obtain a measurement parameter; and the upper computer reads the parameter, executes judgment and control based on a power measurement result, adjusts the volume of the prototype through an ADB instruction until the output power reaches a preset target power, and finally obtains and records a distortion degree value under the target power as a performance measurement parameter. According to the scheme, the signal generator, the to-be-tested prototype and the audio analyzer are integrally controlled through the upper computer, the automatic vehicle-mounted audio performance test process is achieved, the test complexity is effectively reduced, and the measurement efficiency is improved.

The invention relates to an FPGA (Field Programmable Gate Array)-based ADC (Analog to Digital Converter) verification device and a verification method thereof. The FPGA-based ADC verification device comprises an ADC board card interface module, a clock module, an FPGA module and a power module, the output end of the ADC board card interface module is connected with the FPGA module; the output end of the clock module is connected with the FPGA module; and the output end of the power supply module is connected with the FPGA module. According to the method, the batch full-automatic test of the verification parameters of the ADC sampling board card is realized, and the final channel verification parameter value is calculated and sent to the upper computer, so that the test complexity is simplified, the test efficiency is greatly improved, and the labor cost is reduced.

The invention discloses an RCS (radar cross section) single-double station composite testing device and method based on multi-probe spherical distribution, and belongs to the technical field of radar cross section testing. According to the invention, through a sampling strategy of multi-probe array electronic scanning, the single-station and double-station RCS test efficiency is greatly improved, and the effect is more obvious when the method is applied to the double-station wide-angle-domain RCS test of a coupling scattering target; the scale of a test scene is compressed through a spatial multiplexing mechanism, and a single-station / double-station composite test function is integrated while the compactness of the system is improved; the channel self-calibration method for the multi-probe RCS test is provided for the first time, channel calibration steps are synchronously integrated into the test process, channel amplitude and phase errors are calibrated in real time through measured data, and the test complexity is remarkably simplified. Through an innovative sampling strategy, a flexible architecture design and an efficient test method, a solid technical support is provided for rapid test of the target stealth performance.

The embodiment of the application discloses a test data processing system, an algorithm graph generator, a storage chip automatic test device, a link protection code generation method, a test data processing method and a computer program product, and belongs to the technical field of storage chip testing. The system comprises: a configuration register group, used for storing static preset parameters of a current test mode, wherein the static preset parameters at least comprise a storage interface protocol rule used by the current test mode; a burst context extraction circuit, used for detecting a start signal of burst transmission in a dynamic running process of an algorithm graph generator, extracting dynamic burst information and original test data of current burst transmission; and a link protection code generation circuit, used for analyzing the dynamic burst information and the original test data according to the storage interface protocol rule obtained from the configuration register group, and dynamically generating a link protection code of current burst transmission. The application can greatly reduce test complexity and significantly improve test efficiency.

This invention provides a hub device. The hub device includes: a base, a first connecting assembly having a first through hole, a rotating member having a second through hole, and a second connecting assembly; the rotating member is disposed in the first through hole of the first connecting assembly, and the second connecting assembly is disposed in the second through hole of the rotating member; the rotating member is rotatable on the base; the first connecting assembly includes multiple access ports, each access port for connecting a device under test (DUT); the second connecting assembly is used for connecting to an external device; the sidewall of the rotating member has a conductive structure; when the rotating member is rotated until the conductive structure aligns with a target access port among the multiple access ports, the conductive structure connects the target DUT connected to the target access port and the external device. This invention, by operating the rotating member to rotate, can control the connection of an external device to different DUTs, allowing the DUTs to be quickly switched in a short time, thereby reducing testing complexity and improving testing efficiency.

The invention relates to a rock drill impact hour data collection device which comprises a main containing cavity and an auxiliary containing cavity which are kept communicated through a plurality of channels, and the channels can be adjusted in an on-off mode. The input end is configured to extrude the main accommodating cavity and extrude the auxiliary accommodating cavity in the twisting process; the main containing cavity and the auxiliary containing cavity are used for packaging pressed fluid, and the collecting end is at least used for obtaining the pressure of the main containing cavity and the auxiliary containing cavity and obtaining the passing amount of the pressed fluid in the channel. Through the respective pressure bearing effect and the mutual circulation effect of the main containing cavity and the auxiliary containing cavity, the whole equipment can obtain impact force, torque and torsion amplitude input by a drill bit in the process of being matched with a rock drill for testing, compared with the prior art, in the multiple testing processes, the testing equipment does not need to be replaced many times, and the testing efficiency is improved. And the test complexity is reduced, and the equipment cost is reduced at the same time.

This invention relates to the field of engine control systems, and more specifically, to an electromagnetic testing method and system for engine control systems based on an open-loop mode. The method includes the following steps: calibrating the test environment according to the electromagnetic test requirements of the engine control system; setting relevant state parameters for the control system's operating mode, adjusting the drive unit speed to ensure the alternator operates at a specified speed, and setting the excitation device to cause the speed sensor to output a specified signal; monitoring and recording the controller's transmission data; applying test-level electromagnetic excitation to the control system; monitoring changes in key signals during the test, and sequentially completing the test at all test points; stopping the application of the electromagnetic excitation signal, and repeating the above steps according to the control system's operating mode until the electromagnetic test of the control system is completed. This invention improves test safety, reduces test complexity, and increases the efficiency of electromagnetic compatibility design and test verification for engine control systems.

The invention relates to the technical field of high-speed interface verification and system-level prototype verification, in particular to an FPGA prototype verification platform based on an MIPI loop, which comprises an upper computer PC, an FPGA main control chip, a PCIe interface module, a Decoder module, an MIPI sending module, an MIPI physical interface module, an MIPI receiving module and a verification module. The MIPI sending module and the MIPI receiving module are in direct loop connection through a dual-channel FPC flat cable. The verification module is a configurable verification area and is used for deploying a to-be-tested MIPI protocol module on the FPGA to realize function and performance verification of the to-be-tested MIPI protocol module in a closed-loop environment; the verification module can load different circuit modules, and performs on-line verification on data sending, receiving and time sequence logic of the different circuit modules; verification data is sent through the upper computer, enters the FPGA through the high-speed PCIe interface, and enters the MIPI sending module through the decoding module. According to the platform, functional verification and performance evaluation of any module based on the MIPI protocol can be completed under the condition of not depending on external real equipment, and the test complexity and cost are greatly reduced.

The utility model provides an audio power amplifier electromagnetic compatibility test device and a vehicle, and relates to the technical field of testing, a digital signal processing chip is connected with an automobile audio bus chip, and a sound source signal generated by the digital signal processing chip can be sent to the automobile audio bus chip; the automobile audio bus chip converts the sound source signal into an A2B signal and transmits the A2B signal to the audio power amplifier to be tested through the automobile audio bus interface. By introducing the digital signal processing chip, sound source signals can be automatically generated, external sound source input is not needed, the design of the audio power amplifier electromagnetic compatibility test equipment is simplified, and the EMC problems such as signal crosstalk caused by interface exposure are prevented from influencing the EMC test result of the audio power amplifier to be tested. The stability and reliability of equipment are improved, the risk of electromagnetic interference is reduced, and the high standard of EMC is ensured. In addition, equipment required by testing can be reduced, the testing complexity is reduced, and the testing cost is reduced.

The invention relates to the technical field of aircraft strength tests, and discloses an aircraft wing jacking strength test load shedding device and method, which utilize the lever principle to apply a downward load shedding load to a wing so as to balance an upward jacking load borne by a wing jacking point, so that the load borne by the whole aircraft is zero, and the purpose of load shedding is achieved. According to the invention, the output load of the hydraulic actuator cylinder is reduced by using the lever principle, the balancing of a small load and an ultra-large load is realized, and for an ultra-large single-point load of a single top starting point, the load shedding load only needs to be applied to fewer load shedding load acting points, so that the loading channels of the load shedding load are reduced, the test complexity is reduced, and the test efficiency is improved. The small load of the hydraulic actuator cylinder is used for balancing the ultra-large load of the top starting point, so that the safety and reliability of the test are improved, and the problems of reliability and safety of ultra-large single-point load balancing in the wing jacking strength test are solved.

The invention relates to the field of adhesive tape performance testing equipment, in particular to an adhesive tape peel strength testing machine. According to the adhesive tape peel strength testing machine disclosed by the invention, a plurality of testing substrates made of different materials are mounted on the polygonal column of the first electric turntable, the testing substrates can be quickly switched only by rotating the polygonal column, so that the adhesive tape peel strength test can be performed on different materials, and in addition, an electric suction machine and a roller from which cleaning water can permeate are also arranged, so that the test efficiency is improved. According to the adhesive tape testing device, the adhesion firmness of an adhesive tape on a testing substrate can be improved, the adhesion effect of the adhesive tape on the testing substrate in a humid environment can be simulated, the cleaning efficiency of residual glue on the surface of the testing substrate can be improved by utilizing an electric suction machine and a roller capable of seeping cleaning water, and the repeated utilization rate of the testing substrate is improved; the technical defects that test substrates made of different materials need to be frequently replaced by adhesive tape peel strength test equipment, and the test complexity and the time cost are increased are overcome.

The embodiment of the invention provides a front-end application test system, and a test method, device and equipment thereof. The system comprises a view layer, a service layer and an interface control layer, the view layer comprises an atomic component extracted from a business page of the front-end application so as to execute a page rendering test of the front-end application; the service layer comprises a business micro-service formed by packaging independent business functions extracted from the front-end application so as to execute a business function test of the front-end application; the interface control layer comprises component controllers which are in one-to-one correspondence with organism components consisting of a plurality of atomic components in the view layer, and the component controller corresponding to each organism component is associated with at least one business micro-service in the service layer so as to execute a business interaction test of the front-end application. According to the method and the device, accurate layered testing of the front-end application can be realized, the testing complexity and the testing difficulty of the front-end application are greatly reduced, and the high efficiency and the accuracy of the front-end application testing are improved.

The embodiment of the present application relates to a kind of based on module image recognition's communication module switching method and equipment, the method includes: continuously listening to control instruction;When instruction code is switching instruction code, test circuit type, test-switching relationship table and test-module relationship summary table are extracted;Call camera to generate corresponding first image by shooting the overhead view of spring needle array that communication module is pressed into;And image recognition is carried out to first image to obtain panoramic segmentation graph;According to panoramic segmentation graph, test circuit type and test-module relationship summary table, the connection of communication module and spring needle array is confirmed and the connection of test circuit and communication module is confirmed;According to test-switching relationship table, module-switching relationship table and test-module relationship table, switching switch of switching module is switch on or off or disconnecting operation.It can reduce test complexity, improve test efficiency, save test cost by the present application.

The embodiment of the invention discloses a crimping jig for testing and a detection device, the crimping jig for testing comprises a pressing assembly and a testing assembly, and the testing assembly comprises a first testing assembly and a second testing assembly; the first test assembly comprises a first probe group and a first conductive block; the second test assembly comprises a second probe group; at the first stage position, the first end of the first conductive block is spaced from the first contact end of the first probe group, and the second end of the first conductive block and the first contact end of the second probe group are respectively propped against two opposite sides of the first test part and are electrically matched with each other, so that a first functional test is carried out on the to-be-tested product; and at the second stage position, the first end of the first conductive block is abutted against and electrically matched with the first contact end of the first probe group so as to perform a second functional test on the to-be-tested product. According to the invention, two kinds of heterogeneous tests can be continuously completed without frequently replacing a jig, the test complexity is reduced, the two tests are ensured not to interfere with each other, and the overall test efficiency is greatly improved.

The utility model relates to the technical field of position sensor testing, in particular to a throttle position sensor testing tool, and aims to solve the problem that an existing testing process is tedious. The throttle position sensor testing tool comprises a main body support, a rotating shaft is rotationally arranged on the main body support, and the two ends of the rotating shaft extend to the outside of the main body support; the rotating shaft is provided with a scale calibration sleeve for displaying scales, the main body support is provided with an indicator corresponding to the scales of the scale calibration sleeve, the main body support is provided with an assembly hole for installing a throttle valve position sensor, and the assembly hole is arranged at one end of the rotating shaft. The assembling hole and the circle center of the rotating shaft are located on the same axis, and a rotating mechanism used for driving the rotating shaft is arranged on the main body support. The method has the advantages that the testing process of the throttle valve position sensor is simplified, the steps of manual operation are reduced, the tediousness of testing is reduced, and the overall testing efficiency is improved.

The invention relates to the technical field of engine control system tests, in particular to an engine control system radio frequency test method and system. The method comprises the following steps: integrating a plurality of accessories to obtain a to-be-tested engine control system; setting operation modes of a plurality of engine control systems according to the operation conditions of the engine to be tested; arranging an interference signal measuring device at a measuring point of the engine control system, and measuring an electromagnetic interference signal emitted by the engine control system at the corresponding measuring point; recording electromagnetic interference related signals under each frequency in the frequency range; replacing the measuring point position for repeated measurement; replacing the operation mode of the engine control system, and repeating the test; and comparing the recorded electromagnetic interference related signal with a test criterion, and carrying out optimization design of the engine control system. By setting a plurality of control system operation modes, electromagnetic interference signals at a plurality of measuring points are measured and recorded, the test complexity is reduced, and the test safety is improved.

This invention relates to the field of aircraft structural design technology, specifically disclosing an aileron testing device and method for simulating wing deformation. The aileron testing device includes a base, multiple connectors, and multiple drive components. Utilizing this aileron testing device, the drive components move the connectors, which in turn move the aileron joint under test. This simple control process effectively shortens the overall aircraft testing cycle for ailerons. While achieving ground-based bench testing of aileron deformation, it reduces the workload of aileron loading and measurement, simplifies testing complexity, saves testing costs, and shortens the overall aircraft testing cycle.

The invention provides a test method and a test system for a printed circuit board. The test system comprises an upper computer and an accompanying test board, and the method comprises the following steps: responding to a signal triggered by a test fixture when the printed circuit board is placed on the test fixture, and sending a test starting signal to the upper computer by the accompanying test board; in response to the test starting signal, the upper computer generates a test control instruction according to preset configuration information and sends the test control instruction to the test accompanying board; the test accompanying board performs test operation on the printed circuit board according to the test control instruction, obtains test data of the printed circuit board and sends the test data to the upper computer, and the test data comprises external measurement data and internal operation data of the printed circuit board; and the upper computer determines the rationality of the test data according to a judgment rule defined by the configuration information, and obtains a test result of the printed circuit board. By using the method, the test complexity can be reduced, the debugging time can be shortened, and the test efficiency can be improved.

The application discloses a kind of verification device of FIFO buffer module based on UVM.Therein, the device includes: top module, for instantiating design unit verification DUV and interface;Interface module, for defining the format of input and output signal;Component class module, for initializing the infrastructure of the verification device;Component class agent module, for proxy creation each module of UVM;Data class module, for simulating the basic item of test sequence;Data class sequence module, data class sequence is defined by the method in data class module;Component class driver module, for stimulating DUV;Component class monitor module, for sensing DUV signal by the task provided by BFM.Compared with prior art, the application can improve verification efficiency and strengthen the flexibility of test environment, when verifying complex modules such as asynchronous FIFO, UVM can better manage test complexity, and provide rich functions and methods to realize comprehensive verification.

The invention relates to the technical field of storage testing, and discloses a DDR testing method, device and equipment and a computer readable storage medium. The method comprises the following steps: acquiring a bus signal of a test DDR, determining a first read address based on the bus signal, and reading first data from the test DDR based on the first read address; performing address mapping on the first read address on the basis of a preset unified logic address space and the type of a preset standard DDR to obtain a second read address, and reading second data from the preset standard DDR on the basis of the second read address; and comparing the first data with the second data to determine a test result for testing the DDR. The read data of the test DDR have the read data of the corresponding preset standard DDR, accidental errors occurring in a real scene are covered, meanwhile, only the read data of the test DDR and the read data of the standard DDR need to be compared, the accuracy of the DDR test is improved, and the complexity of the DDR test is reduced.

The application discloses an eMMC instant read-write verification method and device, a readable storage medium and electronic equipment. A Java reflection mechanism is used to obtain a flag for direct input and output, a bottom access interface including a bottom access function set is defined in a Java application layer, the bottom access function set includes an opening function, a reading function, a writing function and a memory alignment allocation function, a direct access eMMC operation class is defined in the Java application layer, and the bottom access interface is integrated by using the direct access eMMC operation class. Based on the flag, the direct access eMMC operation class is used to perform instant read-write verification on the eMMC, and a verification result is obtained. In this way, a tester does not need to perform C / C++ coding, and can perform instant read-write verification on the eMMC without caching in the Android Java application layer. The eMMC verification is transferred from the development level to the application level, the time for writing and debugging the bottom driver is saved, the eMMC performance is tested more efficiently, and the test complexity is reduced.

The invention provides a tester performance analysis method and device and electronic equipment, and belongs to the technical field of software testing. The method comprises the following steps: performing function point identification on a target software system to obtain a data function and an interaction function of the target software system; determining a modification proportion of the data function based on the data modification amount of the data function, and determining a modification proportion of the interaction function based on the data modification amount of the interaction function; determining a demand scale of the data function based on the modification proportion of the data function, and determining a demand scale of the interaction function based on the modification proportion of the interaction function; and calculating the test execution efficiency of the test personnel based on the demand scale of the target function, the test effective scheduling duration and the system test complexity coefficient. The method is used for solving the problem that the existing index system cannot objectively measure the execution efficiency of different testers, so that the analysis accuracy of the execution efficiency of the testers is not high.

The invention provides an efficient automatic measurement system and method for a transparent transmission clock of a deterministic Ethernet, and belongs to the technical field of deterministic networks. The method can be applied to development of related equipment of the deterministic Ethernet, and compared with traditional manual calibration for each link, the risk of manual operation errors under a large amount of work is avoided, and the test complexity is greatly reduced; the system-level transparent transmission clock is obtained in a localized mode, and construction of a complex deterministic network of high-precision time synchronization is simplified; according to the invention, on the basis of not influencing the existing time synchronization protocol and implementation, the automatic measurement of all physical link transparent transmission clocks in the network is realized at the lowest overhead. The method has the characteristics of universality, usability, high efficiency and the like, can be transplanted to other products, and has a wide application prospect.

The invention provides a data testing method and device, equipment, a storage medium and a program product, and relates to the technical field of communication. The method comprises the following steps: executing preset three-layer attribute mapping according to an attribute initial value input by a user, and determining an input parameter initial value of a three-layer application programming interface; judging the message type according to the return parameter of the three-layer application programming interface; and corresponding response messages are generated for different message types according to a preset mode, and data testing is completed. According to the method and the device, the initial data is converted into the input parameter initial value of the three-layer application programming interface through the preset three-layer attribute mapping, so that the problem of high data test complexity caused by the fact that the three-layer application programming interface is developed by different platforms is solved.

The application discloses a reliability test method and system of an optical communication device, and relates to the technical field of optical communication devices.The method comprises the following steps: an integrated test device;scanning the barcode of a target optical communication device, matching a plurality of connection devices for the target optical communication device, and obtaining a plurality of docking test groups; matching a plurality of preset test parameters corresponding to the plurality of docking test groups; the test device sequentially performs insertion loss, return loss and polarization-dependent loss tests according to the plurality of preset test parameters, outputs a plurality of test data sets, compares the plurality of test data sets with a plurality of preset performance thresholds, and obtains performance test results.The technical problem of the prior art that the test program needs to be specifically docked with different elements, thereby increasing test complexity and resulting in insufficient reliability test efficiency and accuracy is solved, and the technical effect of improving the efficiency and accuracy of reliability testing is achieved.