1650 results about "Combined test" patented technology

A comprehensive testing method and testboard of train monitor device. The method is a comprehensive testing system based on computer integrated control. It adopts multi-communication mode to complete data exchange. On one hand, according to the vehicle condition simulated by comprehensive testbord, various high precision actuating signal are generated for normal working of control device, including analog, digital and communication signal. On the other hand, test various output signal of monitor device. Finally, test device by combining function relationship, board and channel grade of tested device. Three objects are communicated by computer directly, including programmed power, testboard host machine and card testing adapter. Communication from computer to programmed power and card testing adapter adopts RS232 mode, to testboard host machine adopts USB1.0 mode. Main control panel and communication management penal in testboard host machine adopts two-gate RAM to change data.

The invention discloses a soil one-dimensional consolidation, penetration, stressing relaxation combined test instrument and usage, which posits punch inside a punch cavity at the bottom of pressure container. It can do consolidation and compression to the same soil sample K0, it also can do soil sample penetration test and stressing relaxation test directly and simultaneously. It can test the soil sample's value of coefficient of static lateral pressure K0 and the process of pore water pressure followed by time. The test instrument and method can arrange soil's consolidation characteristic parameter by test outcome and using theoretical formula penetration method. It can do soil's theological behavior analysis by the outcome of stressing relaxation test.

A multi-wireless access technology based over-the-air test system, used for evaluating over-the-air index of a wireless terminal device, has the principle of putting a device to be tested in a three-dimensional space, and establishing a communication link with a base station simulator (namely wireless communications test set); controlling Phi, Theta axles (two axles perpendicular to each other) to rotate according to set step, performing measurement on various angle positions; measuring spherical effective Total Radiated Power of a moving station in the three-dimensional space and Total Isotropic Sensitivity of a receiver. The system mainly comprises a darkroom, a high-accuracy positioning system and its controller(including a rotating axle controller and a polarization controller), a radio frequency test instrument and a main control terminal computer with automatic test program, wherein the radio frequency instruments comprises a wireless communications test set, a spectrum analyzer, a network analyzer and a radio frequency unit.

The invention discloses a comprehensive test method of a small satellite power subsystem. In the method, a solar cell array is replaced by a solar matrix simulator; a ground wired test and control platform of a satellite comprehensive test system is used to transmit wired instructions and collect important parameters; and ground test and control equipment, a remote measurement and control front end and a test computer are used to transmit remote control instructions and collect remote test data. After the satellite is electrified, the on operation time, off operation time and remote control command transmission time of the solar matrix simulator are reasonably controlled, the working state of a power subsystem is set, various parameters and states are monitored and interpreted, and thus, various test items are accomplished. In addition, a method of injecting normal or fault data blocks and program blocks is adopted to test the up injection function, reliability and fault tolerance are tested. The method has high test coverage, clear and definite flow, simple and reliable operation and convenient construction.

The invention discloses a performance testing system and method for an autonomous vehicle. The method comprises the steps: obtaining a testing demand, and generating an offline testing parameter and/or online testing parameter according to the testing demand, wherein the offline testing parameter is used for configuring the offline simulation test of equipment on a to-be-tested vehicle, and the online testing parameter is used for configuring the real drive test of the to-be-tested vehicle; carrying out the offline simulation test of the to-be-tested vehicle based on the offline testing parameter, and obtaining a testing result; carrying out the real drive test of the to-be-tested vehicle based on the online testing parameter, and obtaining a testing result. The system and method providedby the invention can achieve the integrated test, comprising the offline test and the real drive test, of the autonomous vehicle according to the actual testing demand. Compared with the prior art, the system and method can obtain a more accurate and complete testing result.

A comprehensive test experiment device for dynamic and static properties of a rolling bearing-main shaft system comprises a main shaft in which the front end is installed on a front end bearing support saddle; the end surface of the front end bearing support saddle is provided with three laser displacement sensor test probes; the front end bearing support saddle is internally provided with an experiment bearing; load is carried out through a radial load hydraulic tank and an axial load hydraulic tank; the back end of the main shaft is assembled on a back end bearing support saddle, and the back end bearing support saddle is configured to be paired angle contact bearings, and both an integrated monitoring ring and a pre-tightening push block are installed between the angle contact bearings to realize self-adapting pre-tightening of the bearing; the main shaft is provided with an eccentric quality shock excitation disk for applying bearing shock excitation; and the main shaft is driven by a variable-frequency electric motor. The comprehensive test experiment device for dynamic and static properties of a rolling bearing-main shaft system is used for detecting the influence on the dynamic and static properties of multiple types of bearings and the main shaft system, thereby overcoming the defect that the existing rolling bearing-main shaft experiment platform has the characteristics of single-type tested bearing, too low integration degree and rough single processing, being capable of carrying multiple experimental researches, and improving the flexibility of the rolling bearing-main shaft experiment platform.

The invention discloses a comprehensive experimental device for the coal and gas burst, comprising a coal sample chamber, a terrestrial stress simulation loading system and an atmospheric pressure loading device, wherein the terrestrial stress simulation loading system is provided with a force applying capsule and a loading device in a sealed container, the atmospheric pressure loading device is provided with an atmospheric pressure loading channel that communicates with the wall interlayer of the capsule, the loading device comprises at least two loading blocks, the coal sample chamber is enclosed by the loading blocks between which a gap is arranged, and the force applying capsule is sleeved at outside of the coal sample chamber. According to the experimental result observed by a pressure acquisition device and a camera, the invention is capable of simultaneously inspecting the actions of the gas pressure and terrestrial stress in the initiation, start and development of the coal and gas burst through the simulation of coaction of the terrestrial stress and atmospheric pressure to provide the theoretical foundation of forecasting and preventing the coal and gas burst; during the use, the pressure value is capable of being regulated to observe the experimental results under different pressure and the simulation of terrestrial stress or gas pressure only, so that the device is flexible in use.

The invention discloses a system and a method for testing the performance of an AP (Access Point) in a WLAN (Wireless Local Area Network). The system comprises a throughput testing server, two gold machines, two adjustable attenuators, two measuring antennas and a throughput testing client, wherein the throughput testing server is connected to the two gold machines; the two gold machines are respectively connected to the two antennas through the two adjustable attenuators; and the throughput testing client is connected to a to-be-measured AP. The system and the method for testing the performance of the AP in the WLAN can test the wireless coverage performance on the whole, and comprehensively test the wireless coverage performance and direction performance of a product from point to surface.

The invention relates to a laser parameter integrated test system, comprising a wedge spectroscope, a concave spherical reflector, a digital plane array charge coupled device (CCD) camera, a silicon photoelectric diode, a photoelectric detector, an energy probe, a spectrometer, an adjustable attenuator, a stepping motor and a computer with an acquisition card and a control card. A laser to be tested is incident upon the plane reflector; the monopulse energy, the pulse width, the repetition frequency and the wavelength of the laser beam are measured by means of the transmission light of the plane reflector; the wedge spectroscope splits the reflection light of the plane reflector into two beams, wherein one beam of laser is used for observing a near field laser spot, and the other beam of laser is used for measuring the M2 factor, the far field divergent angle, the beam waist diameter and the pointing stability of the laser beam. The laser parameter integrated test system can carry out integrating, precise and stable measurements on the monopulse energy, the wavelength, the pulse width, the repetition frequency, the M2 factor and the pointing stability of the laser beam.

The invention discloses a dynamic driving environment human physiological characteristics and biomechanics test platform which mainly consists of a dynamic excitation system, a three-dimensional digital adjustable seat system, a three-dimensional adjustable driving mechanism and a human physiological characteristics and biomechanics test system. The invention can simulate the dynamic environment (vibration environment) of automobiles, which means to implement the stepless frequency conversion, the amplitude, the frequency fixation and frequency sweep vibration for the variable acceleration; simulate the posture operation of the automobiles in various driving environment; measure the human physiological character indexes of the human electromyography signals, the human arterial blood flow, the human blood pressure response, the human heartbeat number of a driver, etc., and the vibration response of every human part, the contact stress of a human-chair interface and the body pressure distribution of human buttock and back; study and comprehensively test the human physiological characteristics and the human biomechanics of the driving postures of different populations. Through the stimulation on a dynamic driving environment human physiological characteristics and biomechanics test system, scientific data required by the automobile human-machine interface design for populations with different shapes can be obtained.

The invention relates to a mobile communication terminal radio frequency testing system, which belongs to the field of mobile communication terminal radio frequency test. The system comprises a comprehensive tester, a frequency spectrum analyzer, a vector signal source, a wideband signal source, a power meter, a direct current source, a temperature control box, a switch control unit and a controller thereof , and a system control platform, wherein the system control platform is connected with the controller of the switch control unit, the temperature control box, the comprehensive tester, the frequency spectrum analyzer, the vector signal source, the wideband signal source, the power meter and the direct current source respectively; and the comprehensive tester, the frequency spectrum analyzer, the vector signal source and the wideband signal source are connected with the switch control unit and a terminal to be tested respectively. The system has the advantages of simple operating flow, clear testing process, quick testing, serious processing on testing result, and good reliability and stability; in addition, the system can quickly and accurately develop a test case meeting self requirement, realize diverse and standard test, also can flexibly extend to the control on other instruments and meters, and realize flexible configuration of the system.

The invention discloses a vehicle-mounted transformer comprehensive test system. The system is characterized by comprising an industrial personal computer (IPC), a communication module, a hub conversion plate, a short-circuit impedance short connector, a load switch adjuster, and a comprehensive test device, wherein the IPC carries out data communication with each test device of the comprehensive test device through the communication module; each test device of the comprehensive test device is connected with the hub conversion plate through an internal connection wire; the hub conversion plate is connected with a tested transformer through a test wire; a medium-voltage short-circuit impedance short connector and a low-voltage short-circuit impedance short connector are respectively connected with the medium-voltage side and the low-voltage side of the tested transformer through the test wire; the load switch adjuster is connected with a load switch adjusting device of the tested transformer through the test wire. The comprehensive test system provided by the invention can complete all of the test items by a single connection, thereby avoiding frequent replacement of instruments and connection wires.

The invention relates to a technology for performing foundation pile quality detection and geology survey by adopting a single tube longitudinal wave method. The technology is relevant to comprehensive testing of the actual using effect of a foundation pile and is characterized in that longitudinal wave transmitting downwards along a pile body is generated by knocking the top surface of the foundation pile, the longitudinal wave velocity and pile length of the foundation pile can be accurately measured by detecting the time difference of arrival of the longitudinal wave in a sounding pipe, and the quality of pile body concrete can be judged; actual measurement on the time difference of arrival of the longitudinal wave which is transmitted from the pile side soil along the knocked pile body can be conducted in adjacent pipelines or geological bore holes, and the length of the foundation pile, the pile body quality and the chambering degree can be measured; and the wave length of a geological soil layer can be measured, the condition of the geological soil layer around the pile can be judged, and the rock-inlet condition of the foundation pile can be analyzed. By means of the technology for performing foundation pile quality detection and geology survey by adopting the single tube longitudinal wave method, a signal processor can be configured externally or inserted in on the basis of the existing low-strain ultrasonic detection devices and the like, the technology can achieve foundation pile quality nondestructive testing and geology survey, is an economic and ready-made pile foundation nondestructive testing auxiliary validation method and can remarkably improve accuracy and service level of pile foundation quality decision.

The invention discloses a comprehensive test platform and a comprehensive test method for a dynamic system of a fuel cell hybrid electric vehicle. The platform comprises an industrial control console operation unit, a lithium cell pack unit, a fuel cell unit, a direct-current/direct-current (DC/DC) converter, a tested motor unit, an alternating-current power dynamometer unit, a switching execution unit and a resistive electronic controllable load, wherein the industrial control console operation unit communicates with all the other units through a data acquisition card, a controller area network (CAN) card and a CAN bus, and simulates to manage the whole comprehensive test platform. According to the comprehensive test platform and the comprehensive test method, comprehensive test functions of testing the performance of a fuel cell system, a lithium cell pack and a tested motor and managing the energy of the dynamic system is realized.

The invention provides a bogie performance parameter combined test stand of a rail vehicle. The test stand comprises a mechanical analog detection device and a test signal transmitting and processing system; the mechanical analog detection device mainly comprises a frame, a shifting platform, a loading beam, a vertical loading actuator, a horizontal loading actuator, a wheel pair clamping actuator and a track; and the test signal transmitting and processing system contains an industrial control computer, a laser distance meter, a load sensor, a transmitting channel of the load sensor used for generating signals and a data processing software. By using the test stand of the invention, the simulation of the loading of the vehicle body corbel of the overall bogie of the rail vehicle,, the rotation of the bogie and the traverse movement of the wheel pair can be realized; the installed test signal transmitting and processing system can realize fast, accurate and comprehensive detections of various items and ensure the reliability of the dynamic performance parameters of the bogie; and the safety performance of the rail vehicle can be increased and the requirements of the related rules of the ministry of railway can be satisfied.

The invention discloses a test device for integration testing service at E1, T1 interfaces. The device includes interface configuration database, error code database of telephone channel, calling service database, load control module, protocol emulation module, protocol monitoring module, speech recognition and telephone channel check module, error code testing module, message encoding module, message decoding module, and interface module. Through cooperation and interaction among above said modules realize following functions and parallel processing: unity of monitor and emulation, interface configuration, protocol stack, different kinds of types speech path test, signaling flow and calling service, DTMF dispatching number, identification of cue tone, and error code testing etc. The invention makes possible to enter performance testing, conformance testing and synthesis aptitude test from single functional test executed at currently.

The invention discloses a system and method for carrying out in-situ light/electrical/thermal comprehensive testing on a plurality of light-emitting diode devices while carrying out accelerated aging on the light-emitting diode devices. The detection system comprises a light-emitting diode loading circuit board (1), an electrical parameter generating and testing device (2), a multi-channel drive control device (3), a light detection device (4), a light detection control device (5), a light signal processing analysis device (6), a constant temperature control device (7), a temperature detection device (8) and a central monitoring and processing computer (9). By using the system and method disclosed by the invention, a plurality of light-emitting diodes can be subjected to accelerated aging, and the electrical, optical and thermal properties of each light-emitting diode device can be tested one by one through setting time nodes by the computer so as to comprehensively understand the overall physical properties of the light-emitting diode (LED) devices.

The invention provides a battery simulating system, which comprises a battery simulator controlled by a single chip machine, and further comprises a battery management system which collects the voltage, temperature and current information output by the battery simulator and feeds the information back to an upper computer; and an upper computer for setting the battery simulator, displaying the work state and output information of the battery simulator and displaying the voltage, temperature and current information fed back by the battery management system. The battery simulator further comprises a voltage module consisting of DA chips, a temperature module and a current module. The single chip machine can control the gating and the output of the voltage module, the temperature module and the current module according to a battery parameter setting command and a switch parameter setting command of the upper computer. The upper computer, the battery management system and the battery simulator are connected through a CAN bus. The invention can simulate and output the voltage, temperature and current information of the battery and provide a comprehensive test platform for debugging, calibrating, diagnosing and testing the battery management system.

A flexible integrated test system of dynamic and static properties of a combination automotive body-in-white comprises a portal frame, a support restraint device, an adjustable concentrated force loading device, a torsion pendulum frame loading device and a measuring appliance assembly. The support restraint device for supporting the automotive body-in-white to be tested is fixed on the portal frame, the measuring appliance assembly is fixed on the portal frame by a support or directly fixed on the portal frame, the adjustable concentrated force loading device and the torsion pendulum frame loading device which loads stress on the automotive body-in-white to be tested are fixed on the portal frame or arranged on the peripheral side of the portal frame. The flexible integrated test system of dynamic and static properties of the combination automotive body-in-white has the advantages of simple and compact structure, reasonable layout, convenient operation, comprehensive function, wide application and good expansibility.

The testing device is in use for measuring photoelectric properties of photovoltaic conversion materials and parts. In the device, xenon lamp simulates sunlight source. Optical fiber (21) of guiding light beam connects grating monochromator with xenon lamp, and optical fiber (22) of guiding light beam connects grating monochromator with testing dark box, where there are photocell and sensor of photometer inside. Output end of photocell is connected to voltage/current meter. Output end of sensor of photometer is connected to photometer. Output ends of photometer and voltage/current meter through data acquisition interface is connected to computer for in site measuring luminous intensity irradiated on photocell. Sensor of photometer is placed on the position the photocell located.

The invention relates to an integrated testing system for aviation fuel accessories. The integrated testing system comprises an electric control cabinet, a mechanical operating platform, an integrated pump station, a flow proportion testing platform, a pneumatic testing system and a fuel testing system, wherein the mechanical operating platform is connected with a pressurizing oil delivery gas storage tank through the pneumatic testing system; the integrated pump station is connected with the fuel testing system through an oil delivery pipeline; the pneumatic testing system is connected with the fuel testing system through a pneumatic pipeline; the flow proportion testing platform is connected with a pressure refueling joint testing oil tank; and the electric control cabinet is electrically connected with the mechanical operating platform, the integrated pump station, the flow proportion testing platform, the pneumatic testing system, the fuel testing system, the pressurizing oil delivery gas storage tank and the pressure refueling joint testing oil tank. The integrated testing system can perform performance test on all accessories of an aircraft fuel system, is high in integrity,convenient to maintain, compact in structure, small in occupation area and low in cost and expenditure, and is in accordance with specific using environment and support conditions under the field condition of an aviation equipment support army.