452results about How to "Improve test accuracy" patented technology

The invention discloses a fiber bragg grating (FBG) testing device and a testing method for rock three-dimensional stress state. The testing device comprises a data processing module consisting of an FBG network demodulator and a computer, three FBG sensors and a substrate for mounting the FBG sensors; the substrate can be deformed with the deformation of rocks; the three FBG sensors are respectively fixed in three-dimensional directions on the surface of the substrate; and the signal output ends of the three FBG sensors are connected with the signal input ends of the FBG network demodulator. The invention can measure the deformation amount of microstrain, so responses can be made in time before rock masses are damaged; the high-precision measurement of three-dimensional stress in rocks can be realized, so that the long-term and effective monitoring for large project rock masses can be realized, and disasters are prevented.

The invention relates to the mobile communication field, in particular to a testing system for a mobile terminal and a testing method for the mobile terminal. The testing system for the mobile terminal comprises a testing machine frame, a testing adapter, a test box, a programmable power supply, and a PC (personal computer) which controls the work of the whole system and displays the testing results, wherein the test box is arranged on the testing machine frame and provided with a manipulator module, a pneumatic control model, a vision system module, an acoustic system module, a master control board and an interface back plate, wherein the manipulator module and the pneumatic control module are electrically connected with the master control board, respectively; the vision system module, the acoustic system module and the testing adapter are connected with the master control board through the interface back plate respectively; the testing adapter can slidingly pass in and out of the test box; and the programmable power supply and the PC are electrically connected with the master control board through the interface back plate respectively. The testing system provided by the invention is stable and reliable, has high integration degree, and can automatically carry out the tests on all of the integrated functions of the mobile terminal.

The invention discloses a full-tensor magnetic gradiometer, belonging to the technical field of measurement. The full-tensor magnetic gradiometer is characterized by being composed of a multi-probe detection device, a switch converter and a magnetometer, wherein the multi-probe detection device is composed of eight probes, which are arranged in an array of eight cubic top points; and the switch converter is composed of a power supply, a microprocessor, a communication interface and an 8*1 matrix electronic switch. The full-tensor magnetic gradiometer has the effects and advantages that: nine parameters, invariant and modulus of magnetic field gradient tensor can be measured; and the full-tensor magnetic gradiometer is simple in structure and high in precision, and can be applied to underwater object positioning, metal object detection, water area detection, urban engineering object detection, archaeology and geophysical prospecting.

The invention discloses a method for measuring the mixing uniformity of tobacco shreds of cigarettes, comprising the following steps: (1) selecting expanded tobacco shreds as tracers; (2) sampling; (3) separating; (4) drying; and (5) calculating the mixing uniformity. The use of the expanded tobacco shreds as the tracers has the following advantages that 1, the particle size and the distribution uniformity of the expanded tobacco shreds have little difference from other tobacco shreds, thus the expanded tobacco shreds can well represent the motion of the integral body, and can be used as the tracers; 2, the expanded tobacco shreds are one of common raw materials of a cigarette formula, and most cigarette formulas contain more than 3% of the expanded tobacco shreds; and 3, the expanded tobacco shreds have much smaller density than leaf shreds, stem shreds and papermaking sheet tobacco shreds, thus the expanded tobacco shreds can be completely separated by using the density difference through floating method. The separation solution used in the invention is a non-polar solution, thus the density changes of the components of the tobacco shreds caused by the intersolubility of the separation solution and the water in the tobacco shreds are avoided. The method has high measuring precision, and the precision is 0.08-0.66 %.

The invention discloses an indoor power drainage consolidation testing system and method, relating to an indoor rock mechanics testing system and method. The system is composed of shock load applying device, straining three-axis pressure room, stress and strain senor, dynamic resistance strain meter, floating engineering dynamic meter, PC, and pressure frame; and the method includes the steps: (1) according to the diameter size of a sample, drilling a bore along the axis of the sample in proportion, and filling fine sand into it; (2) placing the drilled sample in the pressure room for reversal pressure saturation; (3) installing the shock load applying device on a force transferring pole, and installing the stress and strain sensor for testing aperture water pressure, shock stress and axial strain; (4) using data collector to make dynamic signal collection, transmission and recording.

The invention discloses a fluid structure interaction coal rock shear-seepage test device which comprises a loading device and a shear box, wherein the loading device comprises a rack; a vertical hydraulic cylinder is arranged at the upper part of the rack; a horizontal hydraulic cylinder is arranged on one side of the rack; the shear box comprises an upper box body and a lower box body which are fixedly connected with each other; the upper box body and the lower box body are provided with a cavity for accommodating a test piece; the upper box body is fixedly connected with an upper cover; the lower box body is fixedly connected with a lower cover; the lower cover is fixedly connected with a base plate; the upper cover is internally matched with a pressure bar; the end part, close to the test piece, of the pressure bar is connected with a test piece pressure head by screw threads; the end part, close to the test piece, of the test piece pressure head is matched with a test piece joint by screw threads; a first sealing ring is arranged on the end face, facing towards the upper box body, of the lower box body; and the lower box body is provided with a fluid circuit on the inner side of the first sealing ring, and is provided with a second fluid joint and a third fluid joint which are communicated with the fluid circuit on the left side and the right side respectively. The test device can simulate the practical operating condition more actually, and can improve the test accuracy.

The invention relates to a distribution type multi-parameter deep electromagnetic section imaging system and a measuring method thereof. The system consists of a main control station and N numbered acquisition stations, and the main control station and the N numbered acquisition stations are in bus type network connection by multi-core multiplexing cables; and each multi-core multiplexing cable comprises a communication bus, an induced polarization (IP power supply wire and a measuring electrode lead. The main control station integrates functions of main control center and acquisition, ensures that man-machine interaction is carried out by a liquid crystal screen and a keyboard, and controls the acquisition stations to perform parameter setting, data acquisition and data postback. When in measurement, the system ensures that IP and controlled source audio-frequency magnetotelluric (CSAMT) measurements can be carried out in sequence on a same measuring line without need of changing the positions of a transmitting system and a receiving system, thus one instrument has two functions, and multiple points are distributed at a time and synchronously received; the main control station measures signals of an electric field and a magnetic field, and the acquisition stations only measure the signals of the electric field, therefore, various parameters of a geologic body are obtained; and parameters obtained by different measuring methods can be verified mutually, so the accuracy, efficiency and reliability of measurement are improved, and the equipment investment and the field working cost are reduced.

The invention relates to a photoelectric testing method for the detonating speed of a detonating fuse and a device thereof. The device is characterized in that the device at least comprises two multimode fibre probes inserted into the detonating fuse in certain distance, a fibre coupling connector, a PIN integrated photoelectric detector, a power supply, an FPGA high-speed data acquisition module and a liquid crystal display screen; the PIN integrated photoelectric detector is used to carry out time sharing processing on the temporal fore-and-aft relation of optical signals acquired by the probes in time; optical signals of a plurality of probes are converted into pulse electric signals and are transported to the FPGA high-speed data acquisition module; the input pulse electric signals are subjected to sampling, calculation processing, control and caching; the distance of each two probes of the plurality of the probes and the measured time are subjected to calculation processing to seek an average speed; the detonating speed and relevant data of the detonating fuse are transmitted to the liquid crystal display screen and are displayed; and the photoelectric testing method has the advantages of high testing precision, strong antijamming capacity, small volume, simple operation and the like.

The invention discloses a non-invasive power load monitoring and decomposition method and system based on ensemble learning. The method comprises the following steps: acquiring voltage and current data at the power load inlet; the characteristics of active power, current harmonics, power factor angle and current harmonics distortion rate at the power load entrance being calculated, and the sampleset is constructed; the sample set being randomly divided into training set and prediction set, and the ensemble learner being trained by a training set; when the ensemble training is completed, the prediction set being used to test the categories of samples in the sample set. The method and system has high test accuracy, strong reliability and more stable effect.

The invention provides a physique test machine. The physique test machine comprises a camera, a vertical jump testing unit, an eye-closed and single-legged standing testing unit, a sit-and-reach testing unit, a step testing unit, a sit-up or push-up testing unit and a processing unit, wherein the camera continuously shoots body posture images of a tester in each testing unit at a constant frame rate, and the processing unit receives the body posture images shot by the camera and analyzes body posture change to obtain a test value. According to implementation of the physique test machine, intelligent and automatic tests to the vertical jump test, the eye-closed and single-legged standing test, the sit-and-reach test, the step test and the sit-up or push-up test can be realized based on body posture image processing; compared with the existing physique testing measures, the physique test machine has the advantage that not only the testing efficiency but also the test precision is improved.

The invention discloses a method for calibrating double orthogonal high-precision accelerometers, and relates to the improved method for identifying an error model of the double orthogonal high-precision accelerometers, and aims to solve the problem of inaccurate accelerometer error parameter calibration caused by an angular error. The method comprises the following steps of: sleeving a polyhedral prism onto a main shaft of a grating dividing head, fixing two miniature high-precision accelerometers to be measured onto a mounting fixture in a way that the two accelerometers are vertical to each other, and fixing the mounting fixture onto the main shaft of the grating dividing head; making a light beam passing through a photoelectric auto-collimator irradiate the polyhedral prism, precisely determining zero offset terms in coefficients of the model of the accelerometers with readings at the positions of between 0 and 180 degrees, and for the positions of between 90 and 270 degrees, adopting the same method; and then obtaining each parameter of the error model by an orthogonal double-accelerometer method to finish the calibration. The method has the advantage of improving the testing precision of a gravitational field, and is particularly suitable for occasions of testing the accelerometers with precision higher than 1 mu g.

This invention relates to laser divergence angle measurement device, which comprises the following: one rotation micro-adjusting frame fixed on the socket; one two-dimensional adjusting frame on the rotation frame; one column counterpart fixed on the two-dimensional frame with a round groove on it; one three-dimensional adjusting frame fixed on the socket; one conical fiber on the three-dimensional frame; one constant power fixed on the socket; one power meter connected to the optical fiber and fixed on the socket.

The invention discloses a lip synchronization detection device and a lip synchronization detection method, which are used for detecting lip synchronization error of an audio and video player. The device comprises an audio and video signal generator, a photoelectric sensor and a detector, wherein the audio and video signal generator is used for generating a video signal and an audio signal and periodically outputting the video signal and the audio signal to the audio and video player at the same frequency, so that the audio and video player correspondingly plays a video test signal and an audio test signal; the photoelectric sensor is used for receiving the video test signal and converting the video test signal into an electric signal from an optical signal; and the detector is used for receiving the audio test signal from the audio and video player, receiving the video test signal from the photoelectric sensor and determining the lip synchronization error of the audio and video player by comparing the curves for changes of the voltages of the audio test signal and the video test signal over time. The lip synchronization detection device and the lip synchronization detection method have the advantages of quick detection response, high test accuracy and capabilities of directly reflecting whether the lip synchronization error exists in data and obtaining a specific value of the lip synchronization error.

The invention discloses a tri-axial testing device for testing the water content distribution of a soil sample. The device comprises a constant current alternating current source, a dynamic voltage tester, a computer and a plurality of groups of sheet electrodes, wherein the sheet electrodes correspond to the layers of the columnar tri-axial soil sample; each group comprises four sheet electrodes which are sequentially adhered to the corresponding layer of the soil sample and a tri-axial membrane at an interval of 45 degrees along the circumferential direction of the corresponding layer of the soil sample; the farthest two sheet electrodes and the middle two sheet electrodes in each group are alternately connected with the two electrodes of the constant current alternating current source and the two input ends of the dynamic voltage tester; the output end of the dynamic voltage tester is connected with the computer. According to the device, the van der Pauw principle is used for dynamically measuring the water content of the soil sample in real time; due to the adoption of the flexible sheet electrodes, the influence on the mechanical properties of the soil sample is avoided, and the testing accuracy of the water content of the soil sample is greatly improved.

The invention relates to a detection method of plane digit fuel measurement control system and a relative device, which comprises (1) inputting the fuel level simulation signal of all oil tanks, instant consumption simulation signal of four engines and the fuel temperature compensation simulation signal of each fuel box into the fuel measurement control system of plane, (2), inputting the simulation control signals of plane feed pump, transmission pump, injection pump and accelerator into the fuel measurement control system of plane in the detection, (3), using a 429 bus communication board to pick up the data of 32-bit ARINC420 aviation data bus sent from the fuel measurement computer of the fuel measurement control system, calculating and displaying the data on a panel. The invention can avoid large plane wing model in the test of fuel measurement control system, while the simulator can be independently used in plane external field, with high test accuracy, consist experiment conditions, high test speed, reduced operator number and improved working efficiency.

The invention discloses three-directional dynamic performance test equipment for a vehicle suspension leaf spring, and the application thereof. The test equipment comprises a power source, a test bed and a software control system. The test bed comprises a base, four stand columns and a fixing plate. A steel plate spring suspension is inverted, coiled lugs at the two ends thereof are fixed on a plate spring bearer 1 and a plate spring bearer 2. The bottoms of the plate spring bearer 1 and the plate spring bearer 2 are matched with sliding rails on the base and fixed on the sliding rails through a guide rail locking device. An inverted simulated vehicle axle is fixed above the middle part of the steel plate spring suspension. The side surface of the steel plate spring suspension is horizontally provided with a longitudinal loading mechanism. The side surface of the simulated vehicle axle is horizontally provided with a transverse loading mechanism, and a vertical loading mechanism connected with the fixing plate is arranged above the simulated vehicle axle. The power source provides power, and controls the longitudinal loading mechanism, the transverse loading mechanism and the vertical loading mechanism to conduct the three-direction synchronous loading operation onto the steel plate spring suspension by adopting the static step-by-step loading method and the dynamic harmonic excitation method through the software control system.

The invention discloses a vehicle-mounted controller testing system, which relates to the technical field of fault detection and comprises an upper computer, a speed testing device, a data communication system (DSC) testing device and a power source testing device, wherein the speed testing device, the DSC testing device and the power source testing device are connected with the upper computer. The upper computer is used for testing a communication board, an input board and an output board of a vehicle-mounted controller, for controlling the speed testing device to test a speed board of the vehicle-mounted controller, for controlling the DSC testing device to test a DSC board of the vehicle-mounted controller and for controlling the power source testing device to test a power source board of the vehicle-mounted controller. By integrating a plurality of testing parts, the system can achieve automatic ergoidc testing on all board cards of the vehicle-mounted controller, generates a testing report, improves testing accuracy and testing speed and has wide application prospect.

The invention discloses a continuously variable transmission oil pump performance detection test apparatus used for detecting the performance parameters of an automobile continuously variable transmission oil pump at different working conditions. The performance detection test apparatus comprises a test work bench, a hydraulic part and a control part; the hydraulic part is connected with a tube of the test work bench, the control part is connected with the test work bench and a hydraulic part line, the test work bench is provided with a machine frame which is provided with a drive motor, a transmission shaft and a detected oil pump, a torsionmeter is arranged between the transmission shaft and the detected oil pump, and the drive motor drives the transmission shaft for rotation to realize the rotation of the detected oil pump. In the performance detection test apparatus, an electromechanical and hydraulic combination mode is adopted to be capable of detecting main performance parameters, such as load flow, leakage flow, volumetric efficiency and the like of the continuously variable transmission oil pump at different temperatures, rotating speeds, torque moments and load pressures. The performance detection test apparatus has high test precision, and can help realize the full automation of the test process according to the proposed scheme.

The invention discloses an interface tension and contact angle test device and method based on an analytical balance. The device comprises a lifting system, a lifting system bracket, a constant-temperature sample pool, a sample table and a weighing system, wherein the weighing system comprises a platinum plate, a platinum plate bracket, a hook bracket, a sample bracket and the analytical balance; one side of the sample table is fixedly mounted at the output end of the lifting system; the constant-temperature sample pool is mounted on the sample table; the platinum plate is arranged in the constant-temperature sample pool and mounted at the top end of the sample bracket through the platinum bracket and the hook bracket; the bottom end of the sample bracket is mounted on the analytical balance. The device can be widely applied to the industry fields of daily chemicals, pesticides, petrochemical engineering, surfactant research, fire control, electricity and the like, and has a very high promotion value.

The invention discloses a test device for the performance of an overhead line fault indicator, which belongs to the technical field of the testing of fault indicators. In the test device, a tester is connected with a current boosting coil and a booster respectively; an oscillograph is connected with a voltage transformer and a current transformer respectively; the booster is connected with the voltage transformer by an insulation cable; the current transformer and the current boosting coil are assembled together; overhead line simulation equipment consists of the tester, the current boosting coil, the booster and the insulation cable; the fault indicator is arranged on the current boosting coil; and the booster and the voltage transformer are connected to the ground. In the test device, various states of an overhead line are simulated by the overhead line simulation equipment, and the functions and electric properties of the fault indicator are detected according to related data recorded by the oscillograph. The test device has the advantages that: the test accuracy and test efficiency are improved, and powerful support can be provided for the development of novel fault indicators.

The invention provides a device for measuring the damping ratio of a damper, belonging to the technical field of space application equipment. The device comprises a measuring support, an rzeppa synchronizing universal coupling, a magnetic fluid sealing device, a coupling, a torque sensor, a loading device, a sensor support, a base, a temperature controller and an angle coder, wherein both the loading device and the sensor support are fixedly connected with the base; the torque sensor is connected with the loading device and the magnetic fluid sealing device; the rzeppa synchronizing universal coupling is connected with the measuring support; and the measurement data measured by the torque sensor and the angle coder is accessed to a PC (personal computer) machine via a data wire to acquire the measurement data. The device of the invention is capable of measuring the damping ratio of a damper assembly at minus100 to 70 DEG C and working stably within the vacuum, high-temperature or low-temperature environment; the device has the advantages of high measurement accuracy and high load matching performance; and the torque sensor has low temperature drifting.

The invention discloses a dialogue topic partitioning method and system based on the context correlation. The method comprises the steps of collecting multi-dialogue data and performing random sampling to obtain a training data set; performing vectoring processing on the training data set to obtain a corpus vector space corresponding to the training data set; arranging the corpus vector space into a sentence sequence; calculating the correlation between adjacent sentences; according to the correlation between the adjacent sentences, recognizing the topic boundary of the multi-dialogue data to form a topic partitioning model, and achieving topic partitioning of the multi-dialogue data. The topic partitioning method has the advantages of being high in testing accuracy, high in reliability and stable.

The invention relates to the technical field of optical precise measurement, especially a method for measuring the sub-surface affected layer depth and morphology of an optical material. The method comprises the steps: firstly enabling a sample to be clamped on a clamping mechanism in uniform motion; controlling the clamping mechanism to enable the HF acid solution to immerse in the sample till the sample is completely merged in the solution; quickly extracting the sample from the solution, and employing a probe-type contourgraph to measure a corroded profile, thereby obtaining the profile curves in the longitudinal depth direction of a crack and the vertical movement direction of the sample; calculating the height difference between a critical point or a pole point and a starting point or the height difference between the critical point projected on an original surface or a pole point on the original surface and a starting point on the original surface through the critical point or the pole point and the starting point recorded in a measurement process, wherein the critical point or the pole point are the points where data obtained on the curves starts to level off, and the height difference is the sub-surface affected layer depth D of the sample; and employing an optical microscope to observe the three-dimensional shape of a corroded plane. The method provided by the invention is simple, quick and accurate, can measure the sub-surface affected layer depth and the three-dimensional shape, is high in testing precision, is low in cost, is high in visualization, and exerts low requirements on testing equipment.

The invention relates to a nondestructive detection method for detecting damage of metal material, which comprises the follow steps of: (1) applying AC voltage onto the two ends of AB section of the metal material to be detected; (2) maintaining the amplitude of the AC voltage not to be changed, and conforming the initial frequency of the applied AC current; (3) detecting the measured value of CD section to be detected in the metal material to be detected, and recording the data, wherein the CD section is positioned inside the AB section, and the length of the CD section is shorter than that of the AB section; (4) changing the frequency of the AC current applied on the AB section, recording the measured valve corresponding to the CD section at the same time, and obtaining numerical value curve of the change of the measured valve of the CD section along with the frequency change of the AB section; and (5) comparing the obtained numerical value curve with the nondestructive numerical value curve. The nondestructive detection method has simple and convenient operation as well as high measurement accuracy, can visually reflect the damage degree of the metal material to be detected, and has stronger project practical value.

Some embodiments provide a method for training a machine-trained (MT) network that processes images using multiple network parameters. The method propagates a triplet of input images through the MT network to generate an output value for each of the input images. The triplet includes an anchor first image, a second image of a same category as the anchor image, and a third image of a different category as the anchor image. The method calculates a value of a loss function for the triplet that is based on a probabilistic classification of an output value for the anchor image compared to output values for the second and third images. The method uses the calculated loss function value to train the network parameters.

The invention relates to a comprehensive property testing system for a stepping motor. The testing system is composed of a servo motor (101), a motor mounting bracket (102), a first coupling unit (103), a, torque sensor (104), a second coupling unit (105), a switching shaft (106), a to-be-tested motor mounting bracket (107), an adapting flange (108), a first sliding block (109), a second sliding block (110), a third sliding block (111), a guide rail (112), a mounting flange (201), a motor bracket (202), a connecting shaft (203), an input coupling unit (204), a load torque sensor (205), an output coupling unit (206), a hysteresis brake (207), a hysteresis mounting bracket (208), a hysteresis sliding block (209), a torque sensor sliding block (210), a motor sliding block (211), a slide rail (212) and a controller. According to the invention, the testing precision of the system is high; and characteristics testing requirements of positioning/maintaining torques and loads having different precisions, levels, and ranges can be met by selecting torque sensors with different torque ranges and different precision and resolution ratios and servo motors.

The invention discloses a device and a method for measurement testing of load of a valve rocker of an engine valve mechanism. The testing device comprises a control cabinet, a motor, a coder, a belt pulley, the measured valve mechanism, a lubricating oil tank, a strain foil, a dynamic strain meter, a data acquisition card and an upper computer. The method includes static calibration and dynamic measurement, wherein static calibration testing includes that the strain foil is adhered at the rocker valve end of the to-be-measured valve mechanism, the strain foil is connected with the dynamic strain meter, and one end of a lever is abutted against the rocker valve end while the other end of the lever is loaded with weights; and dynamic measurement testing includes that a camshaft of the measured valve mechanism is connected with the motor through the belt pulley, the strain foil is adhered on the rocker of the measured valve mechanism, the other end of the strain foil is connected with the dynamic strain meter, and the coder and the dynamic strain meter are connected with the data acquisition card which is connected with the upper computer. By the aid of the device and the method, only one simple testing device is needed, and rocker load measurement is completed by simulating an operating state of an engine so that testing requirements are achieved.

The invention relates to the technical field of an impedance test method and an impedance test device, in particular to an impedance test method and an impedance test device for a battery pole piece. The impedance test method for the battery pole piece comprises the following steps of: testing by using an impedance tester, testing an inner resistance of the impedance tester and a total resistanceof an upper pressing head and a lower pressing head, and changing pressure on the pole piece frequently and measuring a resistance of the pole piece for many times. An impedance test device for the battery pole piece comprises a stander and a fixing mechanism, wherein the fixing mechanism comprises a pressurizing mechanism, the upper pressing head, the lower pressing head and a base plate; the upper pressing head comprises a pressing head and an insulation ring; a protrusion is formed at one end of the pressing head; the insulation ring matched with the protrusion is sleeved on the protrusion; a positioning slot matched with the upper pressing head is formed at one end of the lower pressing head; the base plate is fixed on the stander; a sliding slot is formed on the base plate; and the other end, matched with the sliding slot, of the lower pressing head is arranged in the sliding slot. The invention has the advantages of high test precision, high consistency of the test data, simple operation, high reliability and avoiding of interferences of human factors.

The invention discloses a drain leakage current testing circuit and method in a field effect transistor breakdown voltage characteristic. The circuit comprises a test voltage source and a tested fieldeffect transistor; a current/voltage conversion amplification module is arranged between a positive electrode of the test voltage source and a drain D of a field effect transistor; a voltage output signal of the current/voltage conversion amplification module is transmitted to a signal input end of an isolation amplifier module; the current/voltage conversion amplification module is composed of an operational amplifier and a sampling resistor; and an isolation output end of the isolation amplifier module is connected to a microprocessor unit. A current-voltage conversion circuit is used to replace a directly arranged ammeter on the drain side, a set of voltmeter test hardware is used to be connected to the current-voltage conversion circuit to realize the test of the leakage current; thedrain leakage current testing circuit is simple, is high in test precision, can achieve parallel test of N tested devices in a multi-station condition on the basis of one set of voltmeter test hardware, can improve the test precision and efficiency, and can save the hardware cost.

The invention relates to a device for recognizing a human lower limbs movement posture by virtue of a combined sensor. The device comprises a data acquisition module, a signal conditioning module, a micro-controller module and a wireless communication transmission module, and further comprises a wireless communication receiving module and a posture analyzer, wherein the data acquisition module, the signal conditioning module, the micro-controller module and the wireless communication transmission module are sequentially connected by virtue of a lead wire, and the data acquisition module is used for acquiring a human lower limbs movement posture signal, the signal conditioning module is used for processing the data signal, the micro-controller module is used for controlling and coordinating the entire system and the wireless communication transmission module is used for transmitting data; the data acquisition module, the signal conditioning module, the micro-controller module and the wireless communication transmission module are respectively connected to a power module which is used for supplying power to the modules so that the modules can work normally by virtue of lead wires; the wireless communication receiving module is used for receiving the data; and the posture analyzer is connected to the wireless communication receiving module by virtue of a data line. The device disclosed by the invention is reliable to use, and is capable of acquiring human lower limbs movement posture information; and the device has the characteristics of being concise and convenient.