435 results about "Systematic testing" patented technology

The inveniton relates to a method and system of automatic testing of electric automobile charging facilities. The testing method comprises the following steps that a device to be tested is connected to a detection platform; the device to be tested is detected according to a testing project; data detected by the detection platform are collected; collected data are analyzed; an analyzing result is output. Compared with the prior art, the method of automatic testing of the electric automobile charging facilities can conduct comprehensive testing on functional characteristics and performance indexes of an alternating current charging pile, a non-vehicle-mounted charger , a charger module and the like. Intelligentized centralized control is adopted, combination and batch execution of multiple testing projects can be achieved, a whole testing process can be executed by a centralized control platform automatically, and after testing is finished, a test report is generated automatically. A testing device can be used independently, and can be integrated to achieve systematic testing, and post-maintenance and post-calibration can be conducted conveniently. The method and the system of automatic testing of the electric automobile charging facilities can construct a fixed testing platform or a vehicle-mounted mobile testing platform.

A disposable immunodiagnostic test system tests for marker proteins in a sample and includes intimately contacting passage, protein, and absorbent layers. The passage layer is non-porous and has an aperture therethrough. The protein layer is porous, has combinable proteins immobilized thereon, and enables passage of the sample therethrough. The protein layer has an active surface aligned with the passage layer aperture. The sample is introduced onto the protein layer through the passage layer aperture. In positive results, the marker proteins are bound to the combinable proteins and immobilized relative to the protein layer. In negative results, the sample passes through the protein layer, and is absorbed by the absorbent layer. A housing may also be provided, as may a wash structure. The system may be constructed of combustible materials that produce non-toxic by-products upon incineration, preferably enabling ecologically responsible disposal after diagnostic use of the system.

A timing calibration system for a wafer level integrated circuit (IC) tester is disclosed. The tester includes a set of probes for contacting pads on a surface of an IC and having a plurality of tester channels. Each channel generates a TEST signal at a tip of a corresponding probe in response to a periodic CLOCK signal with a delay adjusted by drive calibration data supplied as input to the tester channel. The TEST signal produced by each channel includes edges occurring in a timing pattern controlled by programming data provided as input to each tester channel. To calibrate test signal timing of all channels, each channel is programmed to generate a test signal having the same repetitive edge timing pattern at the tester channel's corresponding probe tip. The test signal produced at each probe tip is then cross-correlated to a periodic reference signal having the same repetitive edge timing pattern. The drive calibration data of each channel is then iteratively adjusted to determine a value which maximizes the cross-correlation between its output test signal and the reference signal. To maximize the accuracy of the timing calibration, each repetition of the test and reference signal edge pattern provides pseudo-randomly distributed time intervals between successive signal edges.

The invention discloses a multi-terminal in-loop virtual-real combined traffic comprehensive scene simulation test system and method. A virtual three-dimensional scene is constructed and comprises a vehicle, a road, a building, a tree, a lateral clearance, a wading road section and a portal frame, and people, animals, a weather environment, an illumination condition, signal lamps and traffic flowdata generated by microscopic traffic simulation software in the scene are used as virtual objects; driving data transmitted by a manually-controlled simulation driving vehicle, a vehicle-mounted unitof an intelligent network connection vehicle in a real environment, a road side unit and an unmanned vehicle rack are used as real objects; the three parts jointly form a traffic simulation test system with a closed-loop form, and the functions of the test system mainly comprise performance evaluation of a main body object, driving behavior analysis and the like.

The invention provides an intelligent substation panoramic simulation and test system with good test effect, belonging to the substation simulation test field. The system comprises: a panoramic simulation device used for simulating the scene of an intelligent substation to realize the dynamic simulation of the primary system of the intelligent substation; a minimum configuration area of a secondary system of the intelligent substation used to reflect the operation of the secondary system of the intelligent substation of 500 kV, 220 kV and 110 kV, wherein the protection interval of each voltagelevel is configured with the minimum configuration; a test platform used for control that interaction and testing between the panoramic simulation device and the minimum configuration area of the secondary system of the intelligent station. The invention can simulate the operation of the primary system of the intelligent substation, and can arbitrarily adjust the operation mode of the power gridin which the substation is located, different wiring forms of the substation, substation maintenance and other different scenarios, support the whole-station-level intelligent substation systematic testing, and support the intelligent substation accident reappearance and responsibility identification function; the test is comprehensive and the effect is close to the reality.

The invention discloses a test machine for a capacitive touch screen system, comprising a Z-directional moving mechanism; the Z-directional moving mechanism comprises a Z-directional slide shaft, an electric motor and a probe; the probe is connected to the Z-directional slide shaft, and the Z-directional slide shaft is adjoined with the electric motor via a rotating mechanism. The electric motor of the test machine for the capacity touch screen system drives the Z-directional slide shaft to rotate via the rotating structure, thus realizing the functions of the curved line and multi-point test.

The invention relates to a real-time overall test method of a network system. The network system comprises a test center system and a client terminal loopback response system. The method comprises the following steps: the test center system sends test packets to a network terminal; after the client terminal system receives the test packets, the client terminal system returns the received test packets to the test center system immediately; the test center system carries out loop detection on all the returned test packets: calculation of a delay packet and a jitter packet, and detection of a delayed packet, a repeated packet, an out-of-order packet and a lost packet; the test center system records the generated basic information of a single client terminal in a database of the center system; and all the test data of the client terminal in the database of the test center system are analyzed to obtain the status of network channels at test time intervals. The method in the invention can be carried out in real time under a network running state, and has the advantages of simple test operation, high network test coverage rate and low test cost; and test results can show the real state of the network channels.

The invention discloses a large-diameter radian bending method of a steel pipe and a large-bend pipe bender. A propelling oil cylinder is adopted to push a steel pipe clamping device to move horizontally; one end of the steel pipe is clamped by the steel pipe clamping device, and the other end of the steel pipe is clamped by a locating piece on a top bending mechanism; a bent part of the steel pipe is heated by utilizing a heating device; a lateral movement distance and a longitudinal movement distance of the steel pipe are tested through a distance measurement control system; the distance measurement control system comprises two distance measuring instruments; and one distance measuring instrument is mounted on a slide rail seat of the top bending mechanism to test data of the lateral movement distance of the steel pipe, and the other distance measuring instrument is mounted above the steel pipe to test data of the longitudinal movement distance of the steel pipe. After the lateral and the longitudinal movement distances and the set diameter of the steel pipe are operated by using a mixed logic, up-down movement of the locating piece and/or left-right horizontal movement of the top bending mechanism are timely adjusted, and finally, a set bend radius radian is achieved and accurate bending of the large-diameter radian of the steel pipe is completed.

The invention discloses a method and a device for testing a microcomputer control system of a diesel locomotive. A CAN bus or a serial bus is used for communication with an host computer to receive a test command from the host computer, and an inter CAN bus is used to receive the test command and transmits the test command to internal signal generation modules which generate a corresponding test signal according to the test command and transmit the test signal to equipment to be tested through an adapter cable; a signal detection module of a testing device detects an output signal of the equipment to be tested and transmits the output signal to a CPU board through the CAN bus, and the CAN bus or serial bus transmits the output signal to the host computer; and the host computer compares a given signal with the detected signal to realize the fully automatic closed loop test of the equipment to be tested. The fully automatic closed-loop test is a fully automatic loop test of the equipment to be tested which is implemented in a way that: the inside of the testing device adopts a distribution type module based on the CAN bus, the CPU board is connected with a digital quantity input and output board, a frequency board, a constant-current source board and a DA board through the internal CAN bus, and the testing device uses the external CAN bus or serial bus of the CPU board to communicate with the host computer and to realize the automatic circulating test of the equipment to be tested.

The invention discloses a visible light scattering dynamic characteristic testing system of a space target. The visible light scattering dynamic characteristic testing system comprises a testing guide rail, a posture analog system, a solar simulator, a panorama testing vehicle, a detection system and a central control system. The testing guide rail is a vertical type arc plate guide rail, the panorama testing vehicle is mounted on the testing guide rail, and the detection system is mounted on the panorama testing vehicle. The posture analog system is mounted at the center of the circle of the vertical type arc guide rail. The solar simulator is mounted on the connecting line of three points including the center of the circle of the vertical type arc guide rail, the position forming an angle of 0 degree with the testing guide rail and the position forming an angle of 180 degrees with the testing guide rail. The central control system is mounted at the position, not irradiated by the solar simulator, of a laboratory where the testing system is placed. The visible light scattering dynamic characteristic testing system of the space target solves the visible light scattering dynamic characteristic problem for simulating observed targets of testing space at different observation azimuth and elevation positions under different sun irradiating azimuth and elevation conditions in the laboratory, testing results can supply rational suggestions to space ontrack experimental task planning, and a basis is provided for developing visible light detection sensors.

The invention discloses a spatial light modulator modulation performance testing device and method based on a 4F interference system. The testing device comprises a laser, a polarizing film, an objective lens, a needle hole, an optical lens, a beam splitter prism, a reflection-type liquid crystal spatial light modulator, a reflector, two Fourier lenses, a CCD camera and a computer. The two Fourier lens are combined to form the 4F interference system, and pixels of the spatial light modulator correspond to pixels of the CCD camera in a one-by-one mode. According to spatial light modulator modulation performance testing device and method, the phase modulation performance of the spatial light modulator can be tested, mutual crosstalk among pixels of the spatial light modulator can be tested, actual phase modulation amount of SLM pixels is measured after phase distribution with given loading phase types is carried out, the deviation between the actual phase modulation amount and a theoretical value is analyzed, the corresponding correction method is studied, the actual phase modulation amount of the SLM pixels meets the theoretical value, and accordingly the holographic photoelectric reproductive image quality is improved.

The invention provides a development and test system and method for whole vehicle in-the-loop automatic driving in a laboratory. The system comprises a four-wheel-drive road simulation dynamometer, a dynamometer control system, a front wheel restraint system, a steering resistance simulation system, a vehicle, a virtual scene simulation system, a scene projector, an annular curtain automatic driving real-time controller, a radar signal simulation system, a test system control cabinet, an automatic driving algorithm development and test management system, a network communication switch, a radar simulation signal camera obscura, and a 5G Internet of Things information simulation system. Accurate road load simulation, including simulation of different loads of wheels under different road surfaces, is realized by using a real tested vehicle and utilizing a road load simulation system, and an automatic ADAS test result and a control algorithm based on a VIL environment are closest to a real application scene. The development of the VIL automatic driving platform and the application of the test platform can greatly shorten the time and cost of the ADAS vehicle road test.

The invention discloses a medium and high speed sensor network testing system, comprising a data packet generator, a data packet analyzer, a network management proxy, a service emulator, a network topology emulator and a central platform, wherein the central platform comprises an emulation server, an application server, a data server and a master processing server, and the application server and the data server are simultaneously connected with the master processing server and the emulation server. According to the embodiment of the invention, targeting on the characteristics of uncertainty of the application environment of the medium and high speed sensor network, the dynamic nature of the network system and the unreliability of wireless communication, a set of complete testing system structure is built, the central platform uniformly sends test commands, and the test data are uniformly collected in the central platform, thus, different test environments can be emulated, functions of systemic test and verification, network performance test analysis, network monitoring and fault diagnosis for the medium and high speed sensor networks are realized, and the medium and high speed sensor network testing system can be adapted to the test on the low speed sensor network.

The invention discloses an LED (Light Emitting Diode) device chroma spatial distribution quick tester and a test method. A retractable box cover is arranged on a camera obscura of the tester; a fibre-optics probe for collecting and transmitting light rays sent by the LED device, a spectrograph connected with the fibre-optics probe, raster plates allowing part of the light rays to go through, C-Gamma shaft rotary devices for placing the to-be-tested LED device, a clamp and a control system are arranged in the camera obscura. The test method comprises the following steps: placing test tools such as the to-be-tested LED device, the fibre-optics probe for collecting and transmitting optical signals and a constant current power supply for supplying power to the to-be-tested LED device in the camera obscura; mounting the to-be-tested LED device in the test clamp to be rotated with two shafts to form a semi-spherical surface direction to test. The tester and the method have the advantages that an instrument and a method for measuring the LED spatial chroma distribution are provided; chroma data acquisition of a plurality of light-emitting surfaces to the to-be-tested LED can be automatically carried out; the structure is simple; the cost is low; the testing efficiency is high; the universality is good; the detection precision is high; the manual work can be replaced; the labor intensity and labor cost can be reduced.

The invention provides a SCANeR-based man-machine mixed driving automatic driving virtual test platform, and relates to the technical field of automatic driving vehicles. The SCANeR-based man-machinemixed driving automatic driving virtual test platform comprises a SCANeR system and a driving simulator, wherein the SCANeR system is in communication connection with the driving simulator through a process; and the SCANeR system comprises a vehicle driving environment generation subsystem, a vehicle dynamics model, a virtual sensor simulation subsystem, a measurement and control subsystem and a test result analysis and evaluation subsystem. The test modes of the automatic driving vehicles mainly comprise a virtual test mode, a closed test site test mode and a public road test mode; and due tothe reasons of rich scenes, high calculation speed, high test efficiency, low resource consumption, good repeatability, capability of being embedded into various links of vehicle development and thelike of the virtual test, each vehicle enterprise and research institution gradually focus on the virtual test.

The invention discloses a device and method for measuring the electrical strength of material under the stress condition. The device comprises an insulating oil tank used for encapsulating a sample to be tested, test electrodes, an electrical strength testing device and a stress generation system, wherein the test electrodes are arranged at the two sides of the sample to be tested and are connected with the electrical strength testing device by electrode leads; and the stress generation system comprises a clamping device used for clamping the sample to be tested. The method for measuring the electrical strength of the material under the stress condition comprises the following steps of: firstly encapsulating the sample in the insulating oil tank, and installing the test electrodes; then, leading the sample to be clamped on the stress generation system and connected with the electrical strength testing device, and fully filling insulating oil; starting the stress generation system for providing a load; after that, starting the electrical strength testing device, and recording the voltage values of the tested sample which is broken down along with the rise of output voltage; and finally, obtaining the electrical strength of the sample. The measurement device is simple in structure and convenient in assembly and operation, the test method is simple and convenient, the test cost is lower, and test results is accurate.

The invention discloses a test method of a carrier rocket electrical system based on an FC AE 1553 high-speed bus. The method comprises the following steps that S1, a test program starts, a ground host is initialized to be a network controller of the FC-AE-1553 high-speed bus, and other devices of the electrical system are initialized to be network terminal devices of the FC-AE-1553 high-speed bus; S2, after test indexes of each device of a rocket and the ground are qualified, a ground host delivers a control right to a comprehensive control computer; S3, the ground host sends a primary engineignition instruction to a comprehensive actuator, and the comprehensive control computer globally broadcasts a takeoff moment to the FC-AE-1553 high-speed bus after receiving takeoff and enters navigation guidance and rocket attitude control; and S4, a data management center collects measurement data of a carrier rocket, then evaluates a health degree of the rocket and sends an evaluation resultto the comprehensive control computer.

The invention provides a universal chip test system, a universal chip test method and a storage medium. The chip test system comprises a main control device, a test mainboard, N daughter board connecting pieces, a plurality of test daughter boards and a plurality of test suites. The test mainboard is connected with the main control device, the test suites and the test daughter boards; the test daughter boards match the test suites, and the test daughter boards are connected with the test mainboard through daughter board connecting pieces. The universal chip test system provided by the invention can quickly and accurately verify and test functions and performances before and after chip design, can meet test tasks of function verification, performance test and reliability test before chip manufacturing, adopts a modular design, is high in expandability, and test automation can be realized.