45results about How to "Avoid inaccurate testing" patented technology

The invention relates to the field of automatic test technology and provides a test task automatic management method and device, equipment and a storage medium. The test task automatic management method comprises the steps that a to-be-executed test task is acquired, and a corresponding test package is acquired according to the test task; according to a newly-added code in a system, codes in the test package are updated to acquire a test package in a latest version; and a test environment where the test task is about to be executed is verified, and when it is determined that the test environment meets a test condition, the test task is executed according to the test package in the latest version. According to the method, when the test environment meets the test condition, the test task isexecuted according to the latest test package, therefore, the problems that the test package has a wrong version and testing is inaccurate due to the fact that the test environment is changed are avoided, test efficiency is improved, usage of a test machine is arranged reasonably and effectively, and manpower resources are saved.

The invention relates to a VDMOS (Vertical Double-diffusing Metal-Oxide-Semiconductor) transistor testing structure which belongs to the technical field of semiconductors and comprises a semiconductor substrate, an epitaxial layer, a first source doping region, a second source doping region, a channel region and an interlevel dielectric layer, a metal layer covering the upper surface of the semiconductor substrate and used for leading out two source electrodes and grid electrodes and a back metal layer covering the bottom surface of the semiconductor substrate, wherein the channel region positioned below the source doping region is mutually separated to form double channels, and the source electrode positioned on the surface of the epitaxial layer is mutually cut off to be respectively used as a test source electrode and a test drain electrode. Under the control of the voltage of the grid electrode, the test is carried out by using the test source electrode and the test drain electrode as output electrodes, the invention effectively realizes that the on resistance of the VDMOS transistor is tested, overcomes the difficulty of superficial characteristics after grinding and unifies the test program, thereby further lowering the maintenance and development cost, and improving the product test and feedback efficiency.

The invention relates to a thermal resistance test circuit and method for a reverse conducting IGBT. The circuit comprises a control circuit, a gate voltage source, a test current source and a heatingcurrent source. The gate voltage source, the test current source and the heating current source are connected with the control circuit. The gate voltage source, the test current source, the heating current source and the control circuit are connected with the reverse conducting IGBT to be tested. The control circuit controls the test current source, the heating current source and the gate voltagesource to provide reverse test current, forward heating current and gate voltage respectively. When heating is carried out, after the reverse conducting IGBT to be tested is in forward conduction, power heating is carried out. When testing is carried out, the reverse conducting IGBT integrates a reverse diode, and reverse test current is input to record the cooling curve of the reverse conductingIGBT to be tested. A thermal resistance value is acquired according to the cooling curve and a temperature-sensitive coefficient. The problem of inaccurate test caused by a rebound phenomenon duringa forward test is avoided. The thermal resistance test is highly accurate.

The invention relates to the technical field of high-temperature grid bias tests, and discloses a high-temperature grid bias test method of a SiC MOSFET device, a computer device and a storage medium. When electrical parameter tests are carried out on the SiC MOSFET device in different test nodes for carrying out the high-temperature grid bias test on the SiC MOSFET device, if the measurement of the SiC MOSFET device is not completed in time, stress interruption time of the SiC MOSFET device can be evaluated, extra stress application time of the SiC MOSFET device can be obtained according to a pre-obtained function relation between a threshold voltage drift change rate of the SiC MOSFET device and the stress interruption time and the extra stress application time after interruption, the bias stress of the extra stress application time is applied to the SiC MOSFET device, so that after a threshold voltage on the SiC MOSFET device is recovered to a preset threshold value, and the SiC MOSFET device is measured in time, thereby guaranteeing that the measured threshold voltage can represent the real drift condition of the SiC MOSFET device at the moment.

The present invention discloses a signal bias amplification type gearbox test system based on self-gain control. The system is formed by a gearbox (1), a driving module (2) which is connected to the gearbox (1), a resistance system (3), a vibration sensor (6), a temperature sensor (5), a torque sensor (4), a torque signal processing module (8) which is connected to the torque sensor (4), a bias amplifier circuit (9) which is connected to the torque signal processing module (8) and a single chip microcomputer (7) which is connected to the temperature sensor (5) and the vibration sensor (6). The system is characterized in that a self-gain control circuit (10) is arranged between the bias amplifier circuit (9) and the single chip microcomputer (7), a torque signal is more stable through the effect of the self-gain control circuit, thus the precision of a torque test is improved, and the evaluation of the performance of the gearbox by test personnel is facilitated.

The invention discloses a hydrophobicity detection method of a power transmission line vulcanized silicone rubber coating. The method comprises the following steps: adopting a suspension type detection device with a walk mechanism, lifting the suspension type detection device to a to-be-detected line by use of a multi-rotor type aircraft, and remotely controlling the suspension type detection device through an operator so as to suspend the detection device on the line; the device can directly walk on the line and acquire and analyze the actual condition of the line through a front image acquisition module arranged on the device, if the condensation occurs on the line, a drying mechanism arranged on the detection device is used for drying the line so as to guarantee the accuracy of the water spray detection; through the mutual synergistic effect of a lifting mechanism and other mechanisms, the detection device can be easily hung on the high-altitude line, and continuously works on the line through the walk mechanism, so that the real data of the line hydrophobicity can be more comprehensively acquired. The method disclosed by the invention is worthy of application and popularization.

The invention relates to a page testing method, a device, a readable medium and electronic equipment. The method comprises the steps of obtaining an image of a to-be-tested page; determining a targetreference page matched with the to-be-tested page from the plurality of reference pages; according to images of a plurality of reference controls of a target reference page, which are stored in a database, determining an image area corresponding to each reference control from the image of the to-be-detected page, the database further storing a verification angle of at least one target reference control, the verification angle being used for representing an angle of the target reference control relative to other reference controls, and the target reference control being one of the plurality ofreference controls; and under the condition that the image area corresponding to each reference control is determined, determining a test result of the control layout of the page to be tested according to the verification angle of the target reference control. Through the technical scheme, the comprehensiveness of page testing is ensured, and the efficiency and accuracy of page testing are improved.

The invention provides an optical material transmittance testing system and a testing method thereof. The testing system comprises: a light source emitting light along a first direction to obtain incident light for test; at least two measured samples, wherein the first measured sample is used for receiving the incident light, an angle is between the incident light and the surface of the first measured surface, first refracted light is obtained after the incident light penetrates through the first measured sample, the second measured sample is used for receiving the first refracted light, second refracted light is obtained after the first refracted light penetrates through the second measured sample and is transmitted along a second direction, the first direction and the second direction are positioned in a same linear line, and the specifications of the first measured sample are same to the specifications of the second measured sample; and a detector used for receiving the second refracted light and detecting to obtain the light intensity I of the second refracted light. The two measured samples are arranged, so the transmittance of the samples can be obtained through repeated refraction of the incident light during angle incidence, thereby the transmittance test problem during the angle incidence is solved.

The invention provides a chip testability design program code generation device and method, and the device comprises a chip design file processing module which is used for receiving a chip design file; the testability design circuit generating and marking module is used for adding a test point and an observation point in a circuit of the chip according to a testability design rule of the chip; the resource dynamic calculation module is used for dynamically generating a pseudo netlist according to the flattening rule; the virtual device modeling module is used for modeling a virtual device and recording an FPGA model generated when the pseudo netlist is generated; the simulation and testability design collaborative optimization module is used for generating a simulation code of the verification platform according to the program code completion degree of the chip design file and performing simulation; and the design data sharing module is used for storing the shared chip design file. The invention further provides a method for implementing the device. According to the method, the efficiency of designing the chip test circuit can be improved, and the flexibility and usability of collaborative design of tools in different design stages of the chip are improved.

The invention relates to the technical field of steel frame anti-seismic detection. The invention particularly relates to a work control method of steel frame anti-seismic detection equipment. The equipment includes a base, and the equipment further comprises a controller, a fixing mechanism, a lifting mechanism and a traction mechanism. The fixing mechanism comprises a plurality of positioning assemblies. The lifting mechanism comprises a lifting plate, a driving assembly and two sets of jacking assemblies. The traction mechanism comprises a sliding plate, an attaching assembly, a connectingassembly and a transmission assembly. The driving assembly, the connecting assembly and the transmission assembly are electrically connected with the controller. The invention discloses steel frame anti-seismic detection equipment and a detection method. A two-section type loading process is adopted when loading force is applied to the steel frame; according to the invention, a buffer process canbe provided for a to-be-tested steel frame and the transmission assembly such that inaccurate testing caused by the sudden application of a large load value is avoided, the service life of the transmission assembly is prolonged, the deviation of tested steel frame anti-seismic data is avoided, the accuracy of the tested data is further ensured, and the practicability of the equipment is improved.

Airplane bus cable test equipment and a test method are disclosed. The equipment comprises a portable case, a detection host and a detection sub-machine are arranged in the case, and the detection host comprises a power supply module, a man-machine interaction interface, a comprehensive test module, a host communication module and a test port. The detection sub-machine comprises at least one bus test signal transmitter, the bus test signal transmitter comprises a power supply module, a signal generation module, a sub-machine communication module and a test signal transmitting port, and during testing, a test instruction is input through the human-computer interaction interface of the detection host, the signal generation module of the detection sub-machine generates a matched standard test signal, the comprehensive test module analyzes the test signal to obtain a test result, and then the test result is sent to the human-computer interaction interface to be displayed.

The invention discloses a motor service life testing tool. The motor service life testing tool comprises a base for positioning a motor, a pressing mechanism which consists of a connecting rod and a tension spring and is used for pressing the motor on the upper surface of the base, and a detecting circuit is connected to the input and the input end of the motor and used for monitoring the rotating speed and working current of the motor on real time; the fixing end of the connecting rod can be rotatably fixed on the base; one end of the tension spring is fixed and while the other end of the tension spring is fixed on the connecting rod; the free end of the connecting rod faces the base to press the motor. According to the motor service life testing tool, the motor can be reliably fixed, and the rotating speed and the working current of the motor can be monitored on real time; the working performance of the motor can be accurately analyzed according to the detection data, so that the service life of the motor can be determined; in addition, the inaccurate test caused by noise interface or falling of a welding wire due to the vibration of a motor body during testing the service life of the motor can be effectively avoided.

The embodiment of the invention discloses an ACL capacity test method and device and a computer storage medium. The method comprises the following steps: generating a discrete ACL rule based on a discrete routing pool, and generating verification traffic and black hole traffic; wherein the black hole flow represents the flow which is not covered by the discrete ACL rule; sending the ACL rule, theverification flow and the ACL black hole flow to a tested port of tested equipment, so that the tested port of the tested equipment performs data matching based on the ACL rule, the verification flowand the black hole flow; and obtaining the matching number of the ACL rules of the tested equipment, and determining the ACL capacity based on the matching number.

The invention discloses a method and device for testing the system performance of terminal equipment. The method comprises the following steps: receiving a test instruction for testing the system performance of the terminal equipment; according to the test instruction, recording values of the influence of resource occupying factors on the system performance of the terminal equipment, wherein the resource occupying factors are factors occupying the resource of the terminal equipment. According to the invention, the values of the influence of the resource occupying factors on the system performance of the terminal equipment are recorded, so that the system performance of the terminal equipment can be tested based on the application of the terminal equipment; the method disclosed by the invention solves the problem that a test is incorrect due to the fact that the performance of the terminal equipment is tested only based on hardware in the prior art, so that the purpose that the system performance of the terminal equipment can be correctly detected is achieved.

The invention discloses a sounding device of a rotary drilling rig, including a center plate and an photoelectric switch. The center plate is arranged on the side wall of a drum of the rotary drillingrig, the photoelectric switch is arranged on a rack of a main winch of the rotary drilling rig, and the photoelectric switch and the center plate are arranged in an alignment mode. The photoelectricswitch needs to be kept close to the center plate to reach the purpose of signal collecting. The working condition of the drilling rig is very bad, once the relative movement of the center plate and the photoelectric switch occurs, the photoelectric switch can be damaged. The photoelectric switch is arranged on the frame of the main winch, no axial relative movement between the center plate and the photoelectric switch is generated, so the failure rate of the photoelectric switch is greatly reduced, and the maintenance cost of the drilling rig is lowered. At the same time, the problem of testinaccuracy caused by pulley slipping is avoided. The electric switch cannot be collided, and the failure rate is reduced. At the same time, no problem of inaccurate sounding caused by the pulley slipping is generated. The damage problem of the photoelectric switch caused by vibration is avoided, the failure rate is reduced, and sounding accuracy is improved.

An embodiment of the invention discloses a fish-eye lens MTF test method, which is characterized by calculating an optical center and radius of an effective light-emitting zone obtained when a sphere light source fisheye lens camera module shoots a sphere light source; according to the optical center and the radius, determining a detection zone in a preset field of view, the shape of the detection zone being determined according to position relation between the detection zone and the effective light-emitting zone; and finally, testing MTF of a fish-eye lens in the detection zone. The method prevents the phenomenon of MTF test inaccuracy caused by scene distortion due to distortion of the fish-eye lens, improves MTF test accuracy of the fish-eye lens, helps users to judge the imaging quality of the lens more accurately and visually, helps to improve camera quality detection accuracy and improves MTF test efficiency of the fish-eye lens. Besides, the embodiment of the invention also provides a corresponding realization device, thereby further enabling the method to have higher practicality. The device has the corresponding advantages above.

The invention relates to the field of vehicle chassis testing, and provides a vehicle chassis testing method, device and equipment, and a storage medium. According to the method, a test item file and a chassis interaction protocol of a vehicle chassis are obtained, a test script is constructed based on the test item file and the chassis interaction protocol, a test interface is generated by using the test script, and a user updates the test script after setting and adjusting test parameters in the test interface. And the updated test script is executed to control each actuator in the vehicle chassis so as to realize an automatic test of each component on the chassis, test data generated in the test process is recorded, and analyzing is performed to generate a test report so that a tester can judge the test performance after the test is completed. In this way, the generation efficiency of the use case is improved, the actual parameters are adjusted through the test interface, the comprehensiveness and accuracy of the use case parameters are guaranteed, and the problem that the test is inaccurate due to the fact that test items are omitted is solved.

The present invention relates to the technical field of detection devices, and discloses a connectivity detection device for a connector and a flat wire harness, including a base plate and a flat wire harness, wherein a clamping mechanism is disposed on the top of the base plate, a circulation mechanism is disposed on the top of the base plate, and a switching mechanism is disposed on the top of the base plate; the clamping mechanism is used to clamp and fix the flat wire harness, and the circulation mechanism is used to push the flat wire harness to move back and forth for reciprocating plug-in and pull-out testing. The connectivity detection device for the connector and the flat wire harness, using the clamping mechanism, places the port of the flat wire harness on the lower clamping plate, and enables the cylindrical through hole of the flat wire harness to be plugged into the positioning column of the lower clamping plate to ensure limiting. The pressing force applied by the limiting member to the serrated member is adjusted to avoid damage to the port of the flat wire harness due to excessive pressure; protecting the integrity of the test equipment can ensure that the test conditions are consistent each time, and reduce fluctuations in test results caused by equipment damage.

The invention provides a manual-transmission testing device capable of controlling the swing angle of a shift lever and acquiring signals of dragline travel distance and shift-lever handfeel at the angle. The manual-transmission testing device comprises a control unit, a manual-transmission mounting seat (1), a first swing mechanism, a second swing mechanism and a stay wire sensor (3). A first electric cylinder (6) is used for driving a first supporting piece (5) to swing around a first rotating shaft (4), and the first rotating shaft (4) is connected with a first rotating sensor (7). A second electric cylinder (10) is used for driving a second supporting piece (9) to swing around a second rotating shaft (8), and the second rotating shaft (8) is connected with a second rotating sensor (11). The second supporting piece (9) is provided with a manipulator used for fixing a gear-shifting handle (12) of a manual transmission (2). The manipulator is provided with a force sensor (14). The first rotating shaft (4) is perpendicular to the second rotating shaft (8). The stay wire sensor (3) is electrically connected with the control unit.

The invention discloses a photovoltaic device testing device and method, relates to a testing instrument in the photovoltaic field, and aims to monitor the uniformity of light intensity and timely discover the drifting of the uniformity of the light intensity in the production process so as to avoid inaccurate batch testing. The photovoltaic device testing device comprises a testing platform usedfor placing a photovoltaic device to be tested, a plurality of light intensity measuring units are arranged on the testing platform, and the light intensity measuring units are used for collecting light intensity information of a target testing point of the testing platform; the testing device further comprises a controller, the plurality of light intensity measuring units are connected with the controller, and the controller is used for calculating the light intensity uniformity of the testing platform according to the output of the plurality of light intensity measuring units.

Embodiments of the present application provide a mobile terminal testing method, device, storage medium, and mobile terminal. The method includes: responding to the first boot instruction triggered by touching the power button of the mobile terminal, waking up the processor of the mobile terminal, and The processor detects whether the pre-started software version in the mobile terminal is a test software version; if the pre-started software version in the mobile terminal is a test software version, then detects whether there is an external power supply for powering the mobile terminal; The external power supply for power supply starts the boot program of the mobile terminal, so that the mobile terminal enters the power-on state; in the power-on state, the mobile terminal is tested based on the test software version. In the embodiments of the present application, by using an external power supply to test the power supply of the mobile terminal, the problem of inaccurate testing caused by using a fake battery to test the power supply of the mobile terminal is avoided, and the accuracy and efficiency of the mobile terminal test are improved.

The invention relates to a device and a testing method for accurately measuring the heat of dissolution of energetic materials, belonging to the field of physical and chemical testing. Including furnace body, connecting wire and recorder, also includes reference unit and test unit; test unit includes rotating cover, sealing cover, connecting rod, reaction pool, turbine blade, ejection pellet; the present invention avoids puncture, friction and other dangerous operations, while solving the problem of inaccurate testing caused by the shrinkage of the isolation film, the device and method improve the efficiency of testing heat of dissolution of energetic materials and reduce the risk of testing.

The invention discloses a motor life testing tool, which comprises: a base for placing the motor; a pressing mechanism, including a connecting rod and a tension spring, for pressing the motor on the upper surface of the base; a detection circuit connected to the motor The input and output ends are used to monitor the speed and working current of the motor in real time; the fixed end of the connecting rod is rotatably fixed on the base, one end of the extension spring is fixed, and the other end of the extension spring is fixed on the On the connecting rod, have the free end of the connecting rod press the motor towards the base. The invention designs a motor life testing tool, which can reliably fix the motor, and monitor the speed and working current of the motor in real time, and can accurately analyze the working performance of the motor through the detection data, so as to judge the working life of the motor, and can Effectively avoid the inaccurate test caused by noise interference caused by non-motor body vibration or welding wire falling off during the motor life test.

The embodiment of the invention discloses an ACL capacity testing method, equipment and computer storage medium. The method includes: generating discrete ACL rules based on a discrete routing pool, and generating verification traffic and blackhole traffic; the black hole traffic represents traffic not covered by the discrete ACL rules; combining the ACL rules, the verification traffic, and The ACL black hole traffic is sent to the port under test of the device under test, so that the port under test of the device under test performs data matching based on the ACL rule, the verification traffic, and the black hole traffic; The matching quantity of the ACL rule of the device, and the ACL capacity is determined based on the matching quantity.

The utility model relates to concrete strength test technical field, concretely is a kind of concrete strength field tester, including bottom plate, the bottom plate top is provided with locking mechanism, the locking mechanism includes sliding cylinder, the sliding groove is established in sliding cylinder inboard, the sliding groove is fixedly installed with sliding rod, the sliding rod outside is equipped with contraction spring, the sliding rod upper side is located in the movable mounting of contraction spring top end with connecting rod, the connecting rod front end is fixedly installed with the clamping plate, the clamping plate middle is established with the clamping slot, the clamping slot is provided with test mechanism, the utility model increases supporting surface by bottom plate and makes the stable sliding of clamping plate, so that when carrying out strength test, can make the resilient structure keep stable pressure state, avoid the inaccuracy caused by inclination when pressing, and the locking mechanism and test structure are separate structure, so it can be freely selected according to use environment when using, avoid being limited by environment.

The invention relates to the technical field of freeze-thaw environment moisture migration testing, in particular to a freeze-thaw environment moisture migration testing device which comprises: a testing cavity, wherein a sample cavity, an inductance assembly directly arranged on the outer side wall of the sample cavity and temperature control assemblies arranged at the two ends of the sample cavity are arranged in the testing cavity, and wherein the temperature control assembly is used for carrying out double-end control on a sample in the sample cavity; the resonance unit that is arranged onthe outer side of the test cavity, wherein the resonance unit is connected with the inductance assembly. The inductance assembly is directly arranged on the outer side wall of the sample cavity, so that a nuclear magnetic resonance signal of a sample can be directly measured, and the test accuracy is improved; the resonance unit is arranged on the outer side of the testing cavity, so that the influence of the temperature change of the resonance unit on a nuclear magnetic resonance signal can be avoided, and the test result is more accurate; the temperature control assemblies are arranged at the two ends of the sample cavity, the freeze-thaw environment needed by testing can be truly simulated, and therefore the testing accuracy is improved.

The invention discloses a relay transceiver, which comprises a shell, an upper joint, a signal transceiver and a lower joint; the upper joint, the signal transceiver and the lower joint are arranged in the shell, wherein the upper joint and the lower joint are respectively arranged at both ends of the relay transceiver, the signal transceiver is arranged between the upper joint and the lower joint and electrically connected with the upper joint and the lower joint respectively; the upper joint is connected with a cable and used for receiving an order sent by a data receiving processor through the cable, sending the order to the signal transceiver, and receiving pressure and temperature information sent by the signal transceiver; and the lower joint is electrically connected with a data collecting and wireless transceiving short joint, and used for receiving pressure and temperature information collected by the data collecting and wireless transceiving short joint, sending the pressure and temperature information to the signal transceiver, receiving an order sent by the signal transceiver and sending the order to the data collecting and wireless transceiving short joint. By adopting the relay transceiver, the underground pressure and temperature information can be observed in real time, so that the problem that the underground temperature and pressure information cannot be read in real time to cause incorrect testing is avoided.

The invention discloses a crop monitoring system based on an unmanned aerial vehicle and a method of the crop monitoring system. The crop monitoring system based on the unmanned aerial vehicle comprises the unmanned aerial vehicle and a sensor. A material holding box is arranged on the lower part of the unmanned aerial vehicle, the material holding box is internally provided with a controller, a hydraulic pump is arranged on the lower left part of the controller, a hydraulic rod is connected to the right side of the hydraulic pump, a vertical rod is arranged on the right side of the hydraulicrod, a side groove is formed in the outer surface of the vertical rod, a rotary motor is arranged on the right side of the vertical rod, a rotary roller is connected to the right side of the rotary motor, a winding device is arranged on the right side of the rotary roller, a base is installed on the lower part of the sensor, an extracting pipe is arranged on the left side of the base, a spring isinstalled on the inner surface of the extracting pipe, and a cross plate is connected to the lower part of the spring. The crop monitoring system based on the unmanned aerial vehicle has the main characteristics that the crop is monitored by using the arrival and departing of the unmanned aerial vehicle, manpower using is saved, monitoring devices can be transported to areas where human beings arenot prone to arriving, and the working efficiency is greatly improved.