135results about How to "Comprehensive test function" patented technology

The invention discloses a laser satellite-ground communication link test system suitable for a remote sensing satellite. The satellite-ground laser communication link test system suitable for the remote sensing satellite comprises a ground terminal analog system, a signal demodulation processing system and a data display terminal. A verification test system designed by the invention mainly satisfies the function and performance test of the satellite under the state of an assembly plant and a large environment test, an uplink dynamic laser signal matched with on-satellite receiving is provided, a normal satellite-ground communication link is established with an on-satellite terminal, a ground laser communication station is simulated to send an uplink beacon signal, a demodulation satellite downlink laser communication signal is received, an uplink and downlink link optical signal transmission bit error rate test, a data rate test and optical energy measurement can be finished, the test of emission wavelength and emission power can be finished, and the test system has comprehensive test functions.

The invention provides a test platform of a drive system of an electric vehicle motor. The test platform comprises an industrial personal computer, a dynamometer system, a voltage / current sampling circuit, a torque / rotating speed sampling circuit and a power supply simulation system. When the test platform works, a road situation simulation system is used for reproducing real acceleration and deceleration conditions of vehicle driving; a load simulation, tracking, and controlling system based on model prediction control is used for realizing rapid response and precise tracking and controlling on load simulation by the dynamometer system; and then a performance analysis system is used for realizing comprehensive performance testing and analysis of the motor drive system. The test platform provided by the invention is capable of detecting the motor performance in real time to obtain data needed by drive motor studying and developing timely and effectively, so that the research and development time of the drive motor can be shortened. Therefore, the test platform plays an important role in leading standardized and information development of motor testing.

The invention relates to an embedded multimedia LED display screen control system, comprising a single board hardware circuit which comprises a program memory, an application data memory, a high-speed memory, a CPU, a safety encrypting protection module, an ultra-large scale field programmable gate array (FPGA) integrated circuit, a high-speed upper screen time-sequence separation driving module, a large-capacity high-speed display memory, a high fidelity solid audio stream output module, a network driving interface, a USB extension interface, a serial driving interface, a clock calendar management module, and a high-class power management module. The embedded multimedia LED display screen control system employs mature and advanced 32-bit SOC (system on chip) high-speed processor and millions of ultra-large scale programmable integrated circuit FPGA as LED display scanning time-sequence signal generators, uses Linux real-time multi-task operation system with open sound code as for software to integrate electrons, software, memory, communication, graphs and images, audio / video decoding, and the like into a whole, and brings qualitative leap for the LED display system.

The invention discloses an NFC bluetooth adapter and a bluetooth product test system and test method. The NFC bluetooth adapter comprises an NFC module which adopts an NFC technology to read an NFC tag arranged in a bluetooth product under connection and acquires a unique identifier of the bluetooth product under connection stored in the NFC tag; and a bluetooth module which establishes bluetooth connection with the bluetooth product under connection according to the unique identifier of the bluetooth product under connection acquired by the NFC module. The bluetooth product test system comprises an upper computer and the NFC bluetooth adapter. The bluetooth adapter guarantees the uniqueness of connection of the bluetooth product so that speed and accuracy of connection of the bluetooth adapter and the bluetooth product can be effectively enhanced. According to the bluetooth product test system, the NFC bluetooth adapter is combined with the upper computer with no requirement for additional complex special test equipment or complex manual operation so that various tests of the bluetooth product can be simply and rapidly controlled, and thus the bluetooth product test system has the advantages of being simple in test method and easy to operate.

The invention relates to a test device for testing the performance of a compliant foil gas journal bearing, which comprises an asynchronous motor with a frequency converter, wherein the asynchronous motor is connected with a test rotor, and one end of the test rotor is provided with a neck journal; the outer side of the neck journal is provided with a bearing holder, and the tested compliant foil gas journal bearing is arranged in the bearing holder; a hanging ring is arranged on the bearing holder, and one end of a static force loading device is connected with the hanging ring through a rope; a weight is hung at the other end of the static force loading device, and a vibration exciter is connected with the bearing holder; and a sensor probe is arranged on a sensor support. The test rotor and the neck journal are driven by the asynchronous motor, and the compliant foil gas journal bearing is contacted with the neck journal at the beginning; when the rotary speed of the neck journal reaches the takeoff rotary speed of the compliant foil gas journal bearing, the compliant foil gas journal bearing is not contacted with the neck journal; the tested signals are transmitted into a computer by a sensor to be processed, so that a series of static and dynamic performances of the bearing are obtained. The invention has the characteristics of full test functions, convenient assembly and disassembly of the tested bearing, achievable performance tests of series bearings and high test precision.

The invention relates to a test device and a test method for a full-bridge module of a high-voltage DC circuit breaker. The test device includes a charging circuit, a capacitor C1, a reactor L, a full-bridge module unit, an energy absorber Rz, and a thyristor T; wherein the charging circuit includes DC charging power supply, current limiting resistor R, isolation switch K, discharge resistor R off , Release switch K2. The test method charges the low-voltage large capacitor through the DC power supply. After the completion, the thyristor triggers the test circuit. The test current is injected into the full-bridge module after being adjusted by the reactance. When the expected breaking current or the maximum breaking time is reached, the breaking is completed. Energy absorbers absorb and limit overvoltages. The topology of the test circuit is simple, the control is simple, the test capacity is low, the test current is large, the breaking current amplitude and di / dt are flexible and adjustable, the test equivalent is high, and it has the ability to comprehensively test the design rationality and operational reliability of the full-bridge module unit ability.

The invention discloses a self-service evaluation system of organism physiological statuses, solving the problem that the discrimination of all-terrain uniform standard suspected cases cannot be realized in the prior art by aiming at the prevention and control of novel transmitted diseases. The self-service evaluation system comprises more than one user terminal device and a remote control center, wherein the user terminal devices comprise data processing and controlling units, first input units, first output units, first transmission units, expense settlement units, data detection units and user identification units, wherein the first input units, the first output units, the first transmission units, the expense settlement units, the data detection units and the user identification units are all connected with the data processing and controlling units, and the first transmission units are connected with the remote control center. The invention also provides an evaluation method of the system. According to the evaluation system and the evaluation method, an all-terrain uniform suspected case discrimination standard can be provided for 24 hours a day, and when an epidemic situation occurs, the quick screening of suspected cases can be realized so as to reduce the epidemic situation spread risk; and users can be guided to finish medical detection and evaluation by selves so as to know the body health conditions at any time and prevent and treat diseases, and the medical cost is reduced.

The invention discloses an OTDR device and method based on coded pulse optical signals. The OTDR device and method are used for detecting an optical fiber to be detected. The OTDR device comprises a light emitting unit, a light receiving unit, a master control unit and a coupling unit. The master control unit respectively controls the light emitting unit and the light receiving unit. The light emitting unit is used for sending the coded pulse optical signals to the optical fiber to be detected. The light receiving unit is used for receiving backscattering signals from the optical fiber to be detected. The OTDR device and method have the advantages that multiple sets of encoded pulses are utilized, high-resolution encoding can be carried out on the near-distance optical fiber, large-dynamic-range encoding is carried out on the long-distance optical fiber, different coded pulses are used for events at different distances for test analysis, and therefore the optimal effect of the measurement on the events at all distances can be achieved, and the relevant OTDR performance is comprehensively improved.

The invention discloses a multifunctional critical-current uniformity non-destructive and continuous detection device of a superconducting band material. The multifunctional critical-current uniformity non-destructive and continuous detection device is characterized in that a pay-off disc and a take-up disc are respectively arranged above the left upper part and the right upper part of an opened Dewar bottle which contains liquid nitrogen; the pay-off disc, the take-up disc and the Dewar bottle are respectively arranged in a sealing box; the Dewer bottle is internally provided with a guide wheel I, a guide wheel II, an excitation device, a magnetic-field measuring instrument and a guide wheel III in sequence from left to right; a height-adjustable top guide wheel is also arranged between the guide wheel I and the guide wheel II; an encoder is arranged above the left side of the guide wheel I or the right side of the guide wheel III of the Dewar bottle; and the excitation device, the magnetic-field measuring instrument, the encoder, a laser range finder I and a laser range finder II are respectively and electrically connected with a monitoring and controlling system. The multifunctional critical-current uniformity non-destructive and continuous detection device disclosed by the invention has the advantages that on the basis of testing the critical-current uniformity of the superconducting band material in a non-contact and continuous manner, the length of the band material also can be measured, the destructed position is accurately positioned, the change of the characteristic of the critical current of the band material can be tested when the tension and the bending degree are variable, and the destruction to the superconducting band material is less in testing.

The invention discloses a combustible liquid vapor explosion and explosion suppression characteristic test system. The system comprises an explosion tank, a double heating temperature-control system, a gas distribution system, a double ignition delay explosion suppression system, and a data test and acquisition system. The explosion tank is provided with a window and six through holes. The explosion tank is covered by a heating sheet of the double heating temperature-control system on the explosion tank. An insulation material is covered on the heating sheet. The temperature-control system is connected with the heating sheet and an air heater. An air compressor of the gas distribution system communicates with a through hole I through the air heater, an ejector, and an ejector pipe. A gas discharge pipe communicates with a through hole II. A vacuum pump communicates with a through hole III. A static pressure sensor communicates with a through hole IV. An ignition electrode of the double ignition delay explosion suppression system is arranged in the explosion tank, and is connected with a delay circuit and a high-voltage power source through the through hole V. An explosion suppression tank is arranged on the top of the explosion tank. A gas generator is arranged in the explosion suppression tank. A nozzle is arranged on the bottom of the explosion suppression tank. A dynamic pressure sensor of the data test and acquisition system is arranged on the through hole VI, and is connected with an oscilloscope through a signal amplifier. The system provided by the invention has the advantages of simple application, multiple test functions, and high precision.

The invention discloses a full-graduation concrete fracture expanding test testing machine under the action of high water pressure and mobile load. The full-graduation concrete fracture expanding test testing machine comprises an MTS testing machine actuation head A, a wedge-shaped loading frame, a neodymium iron boron rare earth permanent magnet, a pressure pulling force transmission steel shaft, a pre-burying bearing, a pressure pulling support piece, a sample support steel bar, a high pressure seal cylinder, a sealing cylinder cover plate, a sealing cylinder connecting rod, a non-contacting type optical measurement window and a high water pressure pump, wherein a wedge-shaped loading frame on which the neodymium iron boron rare earth permanent magnet is fixed, the pressure pulling force transmission steel shaft and the pressure pulling support piece form a closed magnetic field loop; and a dynamic loading part, a supporting part, a high pressure seal cavity part and the high water pressure pump jointly form the testing machine. The full-graduation concrete fracture expanding test testing machine provided by the invention can test crack initiation, extension and unstability processes of the water conservancy projection structure full-graduation concrete fracture under the action of high pressure and mobile load, overcome the defects that the existing testing machine only can perform a full-graduation concrete fracture expanding test under anhydrous pressure or hydrostatic pressure, the high water pressure and the mobile load can not be simultaneously applied and a concrete fracture expanding process can not be tested; and the full graduation concrete fracture expanding test testing machine provided by the invention has the characteristics that the structural design is simple, and the test function is various and the testing process is stable and controllable.

The invention, which belongs to the field of precise scientific instruments, relates to a material mechanical property in-situ test instrument and method under a high-temperature complex mechanical load. A support frame module of the instrument is used for realizing stable support and effective vibration isolation of each functional module of the instrument. A high-frequency fatigue loading moduleis used for realizing high-frequency fatigue loading of a tested sample. A static and dynamic mechanical load loading module is used for realizing combined loading of static and dynamic stretching / compressing / bending loads of the tested sample. A high / low-temperature loading module is used for realizing variable temperature environment loading on the tested sample from a low temperature to a hightemperature. An in-situ monitoring module can integrate a surface deformation damage measurement assembly, a three-dimensional strain measurement assembly, a microstructure measurement assembly and an internal damage detection assembly according to actual test requirements to realize parallel accurate in-situ measurement of a micromechanics behavior, a deformation damage mode and a performance evolution law of the tested sample. The material mechanical property in-situ test instrument and method have advantages of complex load environment, rich test content, high measurement precision and thelike.

The invention relates to an integrated test system for a battery system. The integrated test system includes an automatic detection device, a high voltage control device and a charge and discharge test device. The high voltage control device is provided with a static test channel and a dynamic test channel. The static test and dynamic test on the battery system can be realized by the control of one host computer alone, without a change in the test system, through the control of the on and off of the dynamic test channel connected between the charge and discharge device and the battery system and the control of the on and off of the static test channel connected between the automatic test device and the battery system. The comprehensive test functions are gained, and the test cost is greatly reduced while the test speed and efficiency are ensured.

The invention discloses an electrical property measuring apparatus. The cabinet of the electrical property measuring apparatus comprises a control module, a voltage and current waveform sampling module and an electronic starting switch. The electronic starting switch and the voltage and current waveform sampling module is synchronously controlled, so that the starting transient electrical property of all kinds of electronic equipment can be measured conveniently. The electrical property measuring apparatus can measure the input static electrical property, output static electrical property, transient electrical property, timing sequence electrical property, protection electrical property, pulse electrical property and the like of all kinds of electric equipment, and has the advantages of complete test functions, low cost and small size.

The invention discloses a multi-stage compression rate adjustable static sealing test experiment device. The device comprises a leak detection port, a sealing end cover, an experimental box body, a medium inlet, a medium outlet, a test sealing ring 1, a test sealing ring 2, a test sealing ring 3, a gas sensor, and external seal. The experimental box body is fixed on a workbench, and the sealing end cover is fixedly connected with the experimental box body. A plurality of sealing grooves are arranged at a conical surface of the sealing end cover to achieve a sealing performance test of single channel sealing rings with different outer ring diameters and cross-sectional dimensions, and multi-stage sealing of two-channel and multi-channel O-shaped rings. A gasket between the sealing end cover and the box body is replaced to adjust a distance between the two so as to realize sealing performance detection under different pre-compression ratios.

Disclosed are a multi-rotor unmanned aerial vehicle dynamic experimental device and an experimental method. An experimental platform can be built on the basis of a rotor aircraft model comprising an airframe, arms and motors, and the power, current, voltage, total tension and vibration acceleration of power sources, electronic speed controllers, motors and propellers of dynamic systems of different rotor aircrafts with different axes can be detected. According to the invention, by arranging the structure reasonably, a power system is arranged as high as possible, the reliability of the structure during an experiment is guaranteed and the tension is accurately transmitted; and the influence of the ground effect on the airflow of propellers is decreased, and the interference of experimentalplatform equipment and the ground effect to the operating conditions of the propellers is also decreased. The experimental method can test the dynamic parameters of four-axis rotor aircrafts, six-axisrotor aircrafts and eight-axis rotor aircrafts, and qualitatively measure the parameters of the rotor aircrafts with different axle bases and different axes by changing the axle bases, has the characteristics of complete test functions and high test accuracy, has great practical significances for optimizing the overall layout of the rotor aircrafts and improving the performance of the rotor aircrafts, and also has great market potentials.

The invention discloses a UHV DC protection field test method, device and system based on full process operation characteristic simulation, and the method comprises the steps: constructing an AC-DC primary loop model of a UHV DC transmission project and a DC control system equivalent model; performing model parameter configuration according to a required operation mode of the UHV DC transmission project; performing protection test configuration according to the functional logic of the tested protection; using a configured model for transient simulation operation calculation to obtain simulation operation data; extracting and processing the simulation operation data, and finally obtaining an AC analog simulation signal, a digital simulation signal, a switching value simulation signal and acontrol bus simulation signal which are outputted to a tested protection device; acquiring the protection exit action information of the tested protection device, and storing the information. The method can guarantee the testing reliability of the UHV DC protection function through the full process operation characteristic simulation of the UHV DC transmission project.

The invention discloses a device and a method for testing the impact resistance of a plastic pipe. The invention belongs to the technical field of pipe performance testing. The device comprises a device frame, and a supporting plate is movably mounted in the device frame; the top end of the supporting plate is fixedly connected with a C-shaped hanging rod; two electromagnets are fixedly mounted on the inner wall of the top of the device frame; two iron blocks are fixedly connected to the top of the hanging rod, a driving motor is fixedly installed at the top of the device frame, a bobbin is fixedly connected to the output end of the driving motor, a hanging rope is wound around the outer wall of the bobbin, a fixed pulley is fixedly installed on one side of the driving motor, and the hanging rope is in transmission connection with the fixed pulley. According to the invention, diversified test functions can be realized, adaptive adjustment can be carried out according to use scenes andimpact resistance requirements of different pipes, the test result is comprehensive, the structure is simple, the operation is convenient, and the test method is convenient to implement.

The invention discloses a semi-physical test platform for a train vehicle control network. The platform includes: a train control unit VCU, a human-computer interaction interface HMI, a vehicle network relay device, a vehicle IO module, a driver control device, a virtual control device, and a physical object. Control equipment, semi-physical simulation equipment, simulated scene, train vehicle communication network, train line, physical control equipment and semi-physical simulation equipment signal conversion device, virtual control equipment communication network, power supply and protection device; solve the problem of existing train vehicle The control network hardware-in-the-loop test method has the technical problems of poor flexibility, high cost, and poor versatility of using real objects. It has realized the technical effect of low cost of the test platform, good flexibility and versatility, and various test functions.

The invention provides an automobile transmission torsion testing machine and a testing method thereof. The automobile transmission torsion testing machine has the advantages of large measurement range, convenient use and accurate gear judgment, and comprises a tailstock, a transmission bracket and a speed reducer which are coaxially arranged on a working platform, wherein the lower part of the tailstock is arranged on the working platform in a sliding manner, and the tailstock is connected with an output end of a measured transmission through a second torquemeter; an output end of the transmission bracket is connected with an input end of the measured transmission, and an input end is connected with an output end of the speed reducer through a first torquemeter; power input is provided for the speed reducer by a driving motor, and an output shaft of the speed reducer is provided with an angle encoder; the measuring range of the first torquemeter is smaller than the measuring range of the second torquemeter; and output ends of the first torquemeter, the second torquemeter and the angle encoder are connected to an input end of an upper computer. Through arranging the torquemeters with different measuring ranges at the front and rear ends, the same static torsion testing machine can be compatible with both small-torque transmission and large-torque transmission, and is wide in coverage.

The invention discloses a hardware-in-loop test simulator for a dynamic positioning control system and an operating method of the test simulator. The simulator comprises a real-time I / O (Input / Output) interface and a simulation module of the dynamic positioning control system, wherein the simulation module of the dynamic positioning control system comprises a power management system module, a propelling device module, a ship or offshore floating platform motion module, a position reference system module, a fault simulation module, a marine environment simulation module and a human-machine interaction interface; the simulation module of the dynamic positioning control system conducts real-time data exchange with a to-be-tested dynamic positioning control system through the real-time I / O interface, receives expected command signals of a propelling system transmitted by the to-be-tested dynamic positioning control system, and sends simulated output signals of the dynamic positioning control system to the to-be-tested dynamic positioning control system. The hardware-in-loop test simulator can avoid the risks of actual ship tests, and saves the test cost. The hardware-in-loop test simulator comprises the real-time I / O interface to be directly connected with the to-be-tested dynamic positioning control system, so as to be used conveniently.

The invention discloses an apparatus and a method for measuring the reflection characteristic of a material. The apparatus comprises a hollow excitation source, a monitoring device and a measuring device, wherein light emitted by the hollow excitation source shines on a sample to be measured, the measuring device receives reflected light which is reflected by the sample to be measured and passes through the hollow part of the hollow excitation source, the monitoring device monitors the spectral information of the light emitted by the hollow excitation source, and by using the corresponding measuring method disclosed by the invention, the comprehensive spectral reflection characteristic of the sample to be measured can be obtained through measuring and calculating. The apparatus and method disclosed by the invention are clever in design and simple in light path, can realize the rapid and accurate measurement of the luminosity, chroma and spectral characteristics of retro-reflection of materials without using an optical darkroom, and has the characteristics of powerful functions, high measurement accuracy, small volume, low cost, design integration, and the like.

The invention relates to a pressure-bearing broken residual coal permeability evolution and spontaneous combustion characteristic testing device. A coal sampling mill comprises a coal sampling mill cavity, a piston pressure head and a lower plug head. The coal sampling mill cavity is fixed to a supporting frame of the pressure-bearing broken residual coal permeability evolution and spontaneous combustion characteristic testing device. The coal sampling mill cavity is of a cylindrical hollow structure. The piston pressure head is arranged at the upper portion of the coal sampling mill cavity. The lower plug head is arranged at the lower portion of the coal sampling mill cavity. A heating temperature control device is arranged on the periphery of the coal sampling mill cavity. A first sensor and a second sensor are arranged inside the coal sampling mill cavity. A pressure control system is arranged on the top of the coal sampling mill cavity. A gas inlet formed inside the piston pressure head is provided with a pipeline to be connected with a pressure testing system. A gas outlet formed inside the lower plug head is provided with a pipeline to be connected with a gas detection unit. Axial loading stress and temperature control are adopted for solving the technical problem that a traditional coal spontaneous combustion testing device cannot achieve stress load.

The invention discloses a Beidou radio frequency baseband product testing device. The Beidou radio frequency baseband product testing device comprises a signal simulation module, an interference module, a processing module, a wireless testing module and a wired testing module. The signal simulation module comprises a GNSS signal simulator, an RDSS signal simulator, a power divider and a satellitesignal transponder. The interference module comprises an interference signal simulator; the processing module comprises an inbound receiver, an interface adaptation unit and a data processing terminal; the wireless test module comprises a microwave darkroom, and a tested product turntable, a receiving antenna and a transmitting antenna which are arranged in the microwave darkroom; the wired test module comprises a tested product programmable power supply and a power control unit. All devices in all the modules are connected in order and cooperate with one another. According to the Beidou radiofrequency baseband product testing device provided by the embodiment of the invention, the whole testing device is simple in structure, and the product testing accuracy can be effectively improved.

The invention discloses a hydraulic servomotor performance test device special for a turbine set. The hydraulic servomotor performance test device special for the turbine set comprises a first quick-closing electromagnetic valve, a second quick-closing electromagnetic valve, a first cartridge valve, a second cartridge valve, a servo valve, a filter, an oil pump, an oil tank, a valve, a spring, an oil cylinder, an oil discharging opening, a buffer oil opening, a displacement sensor, an industrial personal computer and a servo card. The hydraulic servomotor performance test device is used for testing the parameters of the quick closing time, the switching on and switching off performance and the magnitude of spring force of the hydraulic servomotor and the magnitude of the friction force between a piston of the hydraulic servomotor and the oil cylinder, analyzing and calculating the parameters and then storing the parameters in the device in the form of report forms, and storage and access of the parameters are convenient. The hydraulic servomotor performance test device has complete test functions on the hydraulic servomotor, the tested data are accurate, and the practicability is high.

The invention relates to the technical field of automobile part testing, and particularly relates to a magneto-rheological damper performance testing device. The magneto-rheological damper performance testing device comprises a power unit, a guide mechanism, a force sensor and a displacement sensor, and is characterized in that the power unit is used for enabling a magneto-rheological damper to be tested to move in a reciprocating manner along a guide direction of the guide mechanism; the force sensor is used for detecting information of a damping force generated by the magneto-rheological damper to be tested when the magneto-rheological damper to be tested moves in the reciprocating manner; and the displacement sensor is used for detecting displacement information of the magneto-rheological damper to be tested when the magneto-rheological damper to be tested moves in the reciprocating manner. The performance testing device is diversified in test function, and can meet a test requirement of excitation adjustability of the magneto-rheological damper and test inclusivity for different models of magneto-rheological dampers.

The invention provides an MEMS-based human body physiological parameter detection device. The human body physiological parameter detection device comprises an integrated circuit chip integrated on the basis of an MEMS technology and a wrist strap, wherein the wrist strap is worn on a wrist when the device is used; the integrated circuit chip is divided into a front face and a reverse face; the reverse face is a face which faces the wrist; the front face is a face which backs on to the wrist; a blood sugar concentration detection sensor, a blood oxygen saturation detection sensor and a pulse detection sensor are integrated on the reverse face of the integrated circuit chip; a heart rate detection sensor and a respiration detection sensor are integrated on the front face of the integrated circuit chip. The invention provides the MEMS-based human body physiological parameter detection device, which has the advantages of small size, easiness in carrying, various testing functions, easiness in operation, low cost and the like.

The invention provides a trimming and testing circuit for a power supply management chip and a power supply management chip. The circuit is used for trimming a packaged finished product chip and comprises a data transmission module, a control module and a feedback unit. The data transmission module is connected with a first pin, and transmits a pulse trigger signal input from the first pin by using asynchronous logic. The control module is connected with the data transmission module, receives the pulse trigger signal, and controls the read-write of a fuse wire read-write unit on the power supply management chip. The circuit also comprises the feedback unit connected with the control module. The feedback unit feeds the signal after the circuit is trimmed back to the first pin for outputting the signal. Key indexes of the packaged finished product chip are tested and trimmed through the trimming and testing circuit for the power supply management chip, and the cost is greatly saved.

The invention relates to a test system of user lines and user circuits and a method. The system includes a single chip, a relay test combination, a signal collection interface, an A / D conversion module, a CPLD, a benchmark power, and a serial port; when testing user lines, the system focuses on external wires; when testing user circuit, the system focuses on internal wires; the single chip receives test orders sent from a network management platform through the serial port, and carries out the corresponding test steps. Through the CPLD, the system connects user line or circuit with the relay test combination so as to test a plurality of items; at last, the single chip sends test results to the network management platform for maintenance personnel. With simple structure and complete functions, the system can be used for the tests of user line and user circuit at the same time.

This invention discloses a multi-wave band photoelectricity field on-line test device and comprises the following structure: to connect the white weak light division object and shining and comparing and pattern-scanning control circuit to form intelligent program control division board; to connect face source black object with temperature difference control circuit to form infrared target generator; to connect infrared spot object and laser impulse field analogue light source and power control and code control circuit to form infrared spot light source and laser field analogue emitter. The control circuit of the above three parts are separately connected to the engineer unit series ports and there locates a circuit interface of photoelectricity system of the light to be measured to reflect the result.