30results about How to "Realize wireless transmission" patented technology

The invention discloses a power distribution network scene low-voltage electric quantity internet-of-things monitoring device and method, and the device comprises a sensing layer, a network layer and an application layer, the sensing layer comprises a plurality of electric quantity collection terminal nodes, and each electric quantity collection terminal node comprises a current transformer, a voltage transformer, a metering chip, a first Bluetooth Mesh communication module and a first power module. And the metering chip converts analog signals acquired by the current transformer and the voltage transformer into digital signals and calculates to obtain voltage, current, power, electric quantity, frequency and other electric quantity parameters. According to the invention, automatic acquisition, wireless transmission, remote monitoring, intelligent analysis and visual display of the electric quantity data of the low-voltage side of the power distribution network can be realized; and meanwhile, an early warning effect can be achieved, early warning can be given out for possible faults of the line, the manual field patrol intensity is reduced, and an Internet of Things solution which is low in cost, high in efficiency, easy to deploy and wide in coverage is provided for low-voltage electric quantity monitoring of the power distribution network.

The utility model relates to the technical field of supervision devices, and discloses an engineering construction progress supervision device, which solves the problem that the existing supervision device is poor in flexibility and real-time performance, and comprises a crawler-type walking vehicle, a control box is fixedly arranged at the top end of the crawler-type walking vehicle, and a solar panel is fixedly arranged at one end of the top of the control box. A monitoring unmanned aerial vehicle is arranged at the top end of the solar panel, a real-time monitoring mechanism is fixedly arranged at the other end of the top of the control box, the real-time monitoring mechanism is composed of an electric telescopic rod and a long-focus monitoring camera, the electric telescopic rod penetrates through one end of the top of the control box and is fixedly connected with the end of the top of the control box, and the long-focus monitoring camera is connected to the top end of the electric telescopic rod; through the monitoring device, remote monitoring, flexible monitoring, real-time monitoring and comprehensive monitoring of the construction site can be realized, and the use effect is improved.

The utility model provides a kind of tightening force monitoring handle and head frame installation force monitoring device, the tightening force monitoring handle can monitor tightening force.Based on the head frame installation force monitoring device of tightening force monitoring handle can be applied in ray operation head frame installation, so that doctor can see the tightening force of left and right hands at any time and adjust at any time, so as to avoid the harm of force overshoot to patient, solve the problem that different position screw tightening force is different, left and right hand tightening force is different, different doctor's tightening force is different and so on due to the screw tightening force has no specific numerical reference.

The invention discloses a data acquisition device and a data acquisition method for sensors of agricultural Internet of Things, and the acquisition device comprises a control terminal which is used for collecting data of all sensors and carrying out the analysis and control; the relay station is connected with the control terminal WIF i; the Internet of Things gateway is provided with a WI F i module and a first Bluetooth module, and the Internet of Things gateway is connected with the relay station through the Wi F i module; the multiple sensors are used for the agricultural Internet of Things, each sensor is provided with a second Bluetooth module N , and the maximum value of i is a natural number larger than 2; and the plurality of second Bluetooth modules Ni and the first Bluetooth module form mesh topology connection. According to the invention, a complicated interface is avoided, data can be distributed and collected more reasonably, and a wider area can be monitored in a unified manner.

The utility model discloses a refrigerator, and belongs to the technical field of household appliances. The refrigerator comprises a refrigerator body and a refrigerator door, a back plate of the refrigerator body is provided with a power panel and a first resonance circuit, the refrigerator door is provided with a second resonance circuit, a rectifier and a display panel, and the first resonance circuit and the second resonance circuit are the same in frequency; the output end of the power panel is connected with the input end of the first resonant circuit; the first resonant circuit is used for generating an alternating magnetic field based on electric energy provided by the power panel; the output end of the second resonant circuit is connected with the input end of the rectifier, the second resonant circuit is used for generating induced current based on the alternating magnetic field, and the rectifier is used for converting the induced current into direct current; the output end of the rectifier is connected with the power supply end of the display panel, and the rectifier is used for transmitting the direct current to the display panel to supply power to the display panel. Through wireless transmission of energy, the circuit layout of the supply circuit is simplified, and the potential safety hazard of electricity utilization caused by circuit abrasion is avoided.

This invention discloses an intelligent oil production system for electric pump wells, a tubing string, and a method of use, relating to the field of downhole communication technology. The system includes a surface control cabinet, an AC carrier cable, a wireless transceiver connector (upper and lower), a DC carrier cable, and downhole intelligent equipment. The surface control cabinet supplies power to the downhole intelligent equipment via the AC carrier cable, the wireless transceiver connector (upper and lower), and the DC carrier cable. The surface control cabinet performs bidirectional AC carrier communication with the wireless transceiver connector (upper and lower) via the AC carrier cable. The wireless transceiver connector performs bidirectional DC carrier communication with the downhole intelligent equipment via the DC carrier cable. This invention reduces the number of cables, solving the problem of the difficulty of laying multiple cables on the external tubing string during construction, while also reducing tubing string costs and production costs.

The present application discloses a battery pack monitoring method and system based on Bluetooth low-power technology, which relates to the field of wireless communication network technology, wherein the method includes: collecting initial state data of the battery pack; broadcasting the initial state data using Bluetooth low-power technology; receiving the initial state data, determining the state change model of the battery pack based on the initial state data, and determining the time point for collecting real-time state data of the battery pack in subsequent monitoring based on the state change model; collecting and broadcasting the real-time state data of the battery pack according to the time point; and evaluating the state of the battery pack based on the real-time state data. The present application uses Bluetooth low-power technology to realize the wireless transmission of battery pack state data, eliminating the trouble of wired transmission, and predicts various state data in the process of collecting state data, and only collects and transmits state data when the state data changes significantly, effectively reducing the load on the battery pack caused by wireless communication.

The application discloses an integrated stretchable flexible wearable biosensor and a preparation method thereof, and belongs to the technical field of electrochemical sensing.The integrated stretchable flexible wearable biosensor is wrapped by a PAN / SiO2 sweat absorption layer.The method comprises the following steps: preparing a stretchable conductive composite fiber; preparing an integrated stretchable flexible sensing fiber; preparing a PAN / SiO2 sweat absorption layer; and preparing a sensor.The conductive composite fiber in the application can maintain stable performance under multiple bending and twisting, the sensor is integrated with a flexible integrated circuit chip and a flexible power supply device to obtain a fabric sensing system, the fabric sensing system can process acquired sensor data, and the detection data can be uploaded to a mobile terminal and a cloud end in real time through Bluetooth technology, real-time monitoring and management of a health condition of the biosensor are realized, six specific biomarkers can be efficiently detected by using only 1 muL of sweat, the amount of sweat required for activating the biosensor is 1 / 3 of that of the prior art, and the fabric sensing system can easily adapt to a tensile strain caused by exercise.

The invention belongs to the technical field of electronic circuits, and particularly relates to a novel target person bullet hitting detection triggering device which comprises a three-dimensional target person U1, a power module U2, a sampling module U3, a single-chip microcomputer module U4 and a 4G module U5, and the power module U2, the sampling module U3, the single-chip microcomputer module U4 and the 4G module U5 are fixed to the three-dimensional target person U1. The power supply module U2 is connected with the 4G module U5, the single-chip microcomputer module U4 and the sampling module U3, and is used for providing a power supply signal. The sampling module U3 is connected with the three-dimensional target person U1 and is used for converting a physical bullet into an electric signal; the single-chip microcomputer module U4 is connected with the sampling module U3 and is used for carrying out filtering calculation on the shot-in electric signal and converting the shot-in electric signal into shot-in data with an IP address; the single-chip microcomputer module U4 is connected with the 4G module U5 and is used for transmitting a wireless signal. The method can effectively solve the problems of false target scoring, target scoring incapability and the like caused by virtual connection, short connection and adhesion of a bullet shooting part of a traditional target person.

The invention discloses a time service method and device based on underwater acoustic communication, electronic equipment and a storage medium, and relates to the field of underwater acoustic communication, the method is applied to slave equipment, and the method specifically comprises the following steps: generating multi-byte first underwater acoustic information according to local time, and sending the first underwater acoustic information to master equipment; generating a first pulse signal according to the first underwater sound information, and marking a first timestamp on the edge of the first pulse signal; generating a second pulse signal according to second underwater sound information fed back by the main equipment, and marking a second timestamp on the edge of the second pulse signal; and updating local time according to the first timestamp, the second timestamp and first time service information fed back by the master device. According to the technical scheme of the embodiment of the invention, the clock consistency between the master device and the slave device is realized, the clock signal synchronization efficiency is improved, and the signal transmission distance is greatly expanded while wireless signal transmission is realized based on a transmission mode of underwater acoustic communication.

The invention discloses detection equipment and a data processing method of refrigeration equipment, and belongs to the field of refrigeration equipment. And the detection equipment is used for receiving the first working parameter sent by the outdoor unit and executing at least one operation of storing the first working parameter and forwarding the first working parameter to a target terminal. According to the detection equipment, complex processing of the related working parameters of the refrigeration equipment based on wireless transmission can be achieved, more convenient information extraction and display of the related working parameters of the refrigeration equipment are provided, and the user experience feeling is improved.

The present application provides an intravascular ultrasound diagnostic system, which transmits an electric pulse corresponding to an ultrasonic frequency at an external part, and after an internal part receives the electric pulse, a high-frequency resonance transceiver unit generates a corresponding excitation pulse so that an ultrasonic transducer generates an ultrasonic wave, and then the ultrasonic transducer generates a corresponding ultrasonic echo signal. The high-frequency resonance transceiver unit of the internal part receives the electric signal corresponding to the ultrasonic echo signal returned from the internal part, so that the external part receives the electric signal, thereby realizing wireless transmission of signals, avoiding problems such as signal attenuation, signal interference and line delay, improving signal reception strength and thereby improving imaging effects and improving user experience.

The utility model relates to an ARM (Advanced RISC Machines) acquisition processing board of a railway freight car loading state monitoring system, which comprises an interface unit, an ARM chip, a memory, a wireless communication module and a power supply module, the ARM chip is connected with a camera through the interface unit, the ARM chip is in communication connection with the memory, and the wireless communication module is connected with the interface unit. The ARM chip is in communication connection with the wireless communication module; the ARM chip is connected with the wireless communication module through an SPI serial port. The interface unit comprises one or a combination of a USB interface and an RS232 interface; the ARM chip is in communication connection with the interface unit through a UART serial port. According to the utility model, the interface unit is combined with the ARM chip and the memory to provide a hardware basis for video signal acquisition, and wireless communication with an upper computer is realized through the wireless communication module.

The utility model relates to a wireless transmission module for a railway wagon loading state monitoring system, which comprises a support and a monitoring device arranged on the support, the monitoring device comprises a camera and a plurality of distance measuring sensors, the support comprises a cross beam and supporting legs, the supporting legs are respectively arranged on two sides of a rail, the cross beam is fixedly arranged at the top ends of the two supporting legs, and the cross beam is of a linear structure. A camera and a plurality of distance measuring sensors are arranged on the bottom surface of the cross beam, the output ends of the distance measuring sensors are connected with a conversion circuit, the conversion circuit is connected with a main control module, and the main control module is in communication connection with the camera; the master control module is provided with a wireless communication module and is connected with an upper computer through the wireless communication module. According to the utility model, the conversion circuit is arranged to collect detection signals of the plurality of distance measuring sensors, the main control module is arranged to provide a hardware basis for processing a plurality of groups of detection data, the main control module is in communication connection with the camera, and the main control module is provided with the wireless communication module to complete wireless transmission of the detection data.

The application discloses a wireless audio and video information transmission device for a high tower crane, which is characterized by comprising an audio and video collection module, an audio and video coding module, a laser communication module, an audio and video decoding module and an audio and video display module, wherein the modules are sequentially connected, that is, the audio and video collection module is connected with the audio and video coding module through a data transmission interface, the audio and video coding module is connected with the laser communication module, the laser communication module is connected with the audio and video decoding module, and the audio and video decoding module is connected with the audio and video display module, so that wireless transmission of audio and video information between the high tower crane and the ground is realized, the tower crane driver can intuitively obtain the situation of the working site, accurate operation is facilitated, and the safety and efficiency of construction are improved.

The present invention provides a wireless sensor node and a working method thereof, and a wireless sensor system, and relates to the field of sensor technology, wherein the wireless sensor node comprises: a power supply for supplying power to a sensor and a voltage-controlled oscillator; a sensor, one end of which is grounded, and the other end of which is connected to a first input end of an analog amplifier and one end of a matching resistor, the sensor generates a primary voltage according to a detection amount of a space environment, the resistance value of the matching resistor, and a power supply voltage, and inputs the primary voltage into the analog amplifier; the second input end of the analog amplifier is connected to the output end through an adjusting resistor, the output end of the analog amplifier is connected to the input end of the voltage-controlled oscillator, the analog amplifier generates a tuning voltage according to the primary voltage and the adjusting resistor, and outputs the tuning voltage to the voltage-controlled oscillator; the voltage-controlled oscillator generates a frequency signal according to the tuning voltage, radiates the frequency signal to space through a matching antenna, and enables a master control end to calculate the detection amount of the space environment according to the received frequency signal.

The invention discloses a multi-channel information fusion relay protection closed loop automatic test system and method, and the system comprises a relay protection tester, a merging unit connected with the relay protection tester, and a relay protection device connected with the merging unit. The test control terminal performs signal transmission with the relay protection tester and is used for completing relay protection closed-loop automatic test, the relay protection device is connected and communicated with the test control terminal, an optical fiber communication module is arranged in the relay protection device, and the relay protection device is connected with a test module of the relay protection tester through an optical fiber. A wireless communication module is integrated in the relay protection tester. According to the method, the universality is high, the protection regular checking efficiency is improved, the real-time performance is better, the safety of test data is better, the effectiveness, quickness, sensitivity and selectivity indexes of the relay protection device can be accurately and effectively analyzed and judged, and technical support is provided for relay protection work.

The invention discloses a wireless passive temperature measuring device used in a large-temperature-difference environment. The wireless passive temperature measuring device comprises a large-temperature-difference thermoelectric energy conversion device, an energy management and storage part, a wireless temperature measuring part and an upper computer. The large-temperature-difference thermoelectric energy conversion device is used for converting heat energy in a large-temperature-difference environment into electric energy, effective collection of energy is achieved, and the hot end of the energy conversion device can work in a high-temperature environment. The energy management and storage circuit is used for adjusting the electric energy generated by the thermoelectricity, ensuring that the output voltage is stable, and storing the electric energy in an energy storage device for a subsequent circuit to use; the temperature measuring circuit is matched with a high-precision temperature sensor and is used for monitoring and collecting temperature data in real time; the wireless communication circuit is used for monitoring and collecting temperature data in real time; and the upper computer is used for processing, displaying and storing the received temperature data in real time. According to the invention, self energy supply can be realized through energy collection in a large temperature difference environment, and high-accuracy temperature measurement and wireless data transmission are realized.

The utility model provides a force balance experiment device which comprises a vertical rod supporting piece, a lever cantilever, a first sliding block and a second sliding block. The lever cantilever is provided with a leveling assembly, a displacement sensor and a tilt angle sensor. A plurality of single contacts and a common contact are arranged on the lever cantilever, the plurality of single contacts are respectively connected with the displacement sensor, and the common contact is connected with the displacement sensor; the vertical rod supporting piece comprises a vertical rod, the lever cantilever is hinged to the vertical rod of the vertical rod supporting piece, and the first sliding block and the second sliding block are installed on the lever cantilever on the two sides of the vertical rod respectively. The displacement sensor is used for acquiring current position information of the first sliding block and the second sliding block; the tilt angle sensor is used for measuring the tilt angle of the lever cantilever. By using the device, a user can accurately measure the positions of the sliding blocks at the two ends of the lever cantilever and the inclination angle of the lever cantilever in real time, manual measurement errors are avoided, and the convenience of data measurement is improved.

The utility model provides a magnetoelastic aortic dissection immune sensing device which comprises a blood collecting device, a magnetoelastic detecting device and a magnetoelastic sensor chip testing rod, the blood collecting device comprises a blood collecting tube, a storage tube and a centrifugal tube which are respectively connected with a blood collecting needle, and the blood collecting device is used for collecting blood; the centrifugal tube can be used for carrying out centrifugal treatment on blood; the magnetoelastic detection device is provided with an integrated circuit and an induction coil device, and a magnet is arranged above the magnetoelastic detection device; the magnetoelastic sensor chip test rod is positioned in a test rod socket in the top of the magnetoelastic detection device and is provided with a plurality of grooves, and the grooves are used for placing magnetoelastic sensors and blood samples. The blood collection device and the magnetoelastic detection equipment are combined, blood collection, storage, centrifugation and detection are completed in one device, detection can be carried out immediately after blood collection, the sampling efficiency is high, the structure is simple, power consumption is small, carrying is convenient, operation is simple, and real-time monitoring can be achieved.

The invention provides a device and a method for measuring the width of a single-side opening of a welding groove. A welding groove single-face opening width measuring device comprises a main scale system and a vernier scale system, the vernier scale system is installed on the main scale system in a sliding mode, the main scale system is provided with a first reference surface and a second reference surface, the first reference surface plays a guiding and stabilizing role in the direction perpendicular to a groove, and the second reference surface plays a guiding and stabilizing role in the direction of the groove. The vernier scale system is provided with a groove single-side width measuring blade foot used for abutting against the upper edge of the groove.

The application relates to the technical field of clothes processing, and provides clothes processing equipment and a control method thereof. The clothes processing equipment comprises a box body, a clothes containing drum and a wireless energy transmission assembly, the clothes containing drum is rotationally arranged in the box body; the wireless transmission assembly comprises a transmitting part and a receiving part, the transmitting part is arranged outside the clothes containing drum, the receiving part is arranged on the clothes containing drum and rotates with the clothes containing drum, the receiving part corresponds to the transmitting part when the clothes containing drum rotates to a preset position, and the receiving part and the transmitting part inductively transmit electric energy. During the operation of the clothes processing equipment, the transmitting part does not continuously correspond to the receiving part, but corresponds to the receiving part for a short time, so that the transmitting part and the receiving part with small sizes can achieve the purpose of electric energy transmission, the cost of the transmitting part and the receiving part is reduced, and the arrangement of the transmitting part and the receiving part on the box body and the clothes containing drum is more flexible and convenient.

The utility model discloses an elevator guide rail perpendicularity detection machine, including walking mechanism, detection mechanism and control mechanism, walking mechanism includes robot car body, the four corners of robot car body are equipped with drive wheel, the inboard of robot car body is fixed with electric cylinder, the piston rod end of electric cylinder is equipped with clamping wheel, the top of robot car body is equipped with safety module and is equipped with function module in the bottom, detection mechanism includes inertia measurement unit, laser range sensor and encoder, control mechanism includes electric control box, be equipped with signal receiver, PLC and signal transmitter in electric control box. The elevator guide rail perpendicularity detection machine design is advanced, and reliable operation is realized, and a plurality of function modules are integrated, realize guide rail perpendicularity detection, clean, noise and vibration detection and the defect identification such as many functions in an organic whole, not only has improved the detection efficiency, still greatly reduced equipment cost and maintenance difficulty.

The utility model provides a pipeline annular weld detection device's imaging board, including imaging panel, communication box and connecting frame, wherein, the imaging panel includes casing and a plurality of heat dissipation blocks, the heat dissipation block is integrally formed on the casing, and a plurality of heat dissipation blocks are arranged in the matrix spacing mode, the communication box is fixed with bolt setting on the casing, and is in close contact with the heat dissipation block and is away from the one side of casing, the connecting frame is fixed setting on the casing, is used for with walking frame fixed connection. The utility model discloses a plurality of heat dissipation blocks are set up on the casing, can increase the effective heat dissipation area of imaging board, intensifies the convection heat transfer effect of imaging board position to improve the heat dissipation effect of imaging board, guarantees the normal operation of imaging board.

The invention relates to the technical field of power transmission line monitoring, discloses an intelligent spacer integrated with a high-precision galloping amplitude and vibration frequency sensor, and aims to solve the problem of online monitoring of windage yaw and galloping frequency of an existing power transmission line. The intelligent spacer is composed of a spacer body, a supporting rod and a power transmission line buckle, and is equipped with a sensor, a Bluetooth device, a GPS device, a battery and a laser range finder. And the system can communicate with a background management system to realize real-time transmission and analysis of data. During monitoring, a plurality of intelligent spacers are installed to cover key monitoring points, vibration, position information and height changes of a power transmission line are obtained through a sensor, a GPS and a laser range finder, a background management system preprocesses collected data, a spectrogram is generated through time domain and frequency domain analysis, and the spectrogram is used for monitoring the power transmission line. And the variation trend of the galloping amplitude and the vibration frequency is analyzed, and a detailed monitoring report is finally formed, so that the precision and efficiency of state monitoring of the power transmission line are improved, and the method has important significance on safe operation of the power transmission line.

The utility model provides a monitoring system of an uninterruptible power supply, which comprises a main controller, a wireless Wifi module and a power supply circuit, and is characterized in that the main controller is arranged on the uninterruptible power supply; the wireless Wifi module is arranged on the uninterruptible power supply, is in wireless communication connection with the main controller and is used for being in wireless connection with external communication equipment; the power supply circuit is electrically connected to the main controller and the wireless Wifi module. When the uninterruptible power supply is started, the power supply circuit outputs power supply voltage to the main controller and the wireless Wifi module. According to the technical scheme, the wireless Wifi module is integrated in the uninterruptible power supply, so that big data sharing and wireless transmission are realized, the remote monitoring and real-time management capabilities of a user on the operation conditions of the uninterruptible power supply and rear-end equipment thereof are enhanced, and the problem of local data storage and transmission limitation caused by the fact that an existing monitoring system depends on wired connection is solved. And meanwhile, by reducing the use of wired communication lines, the wiring of the monitoring system is simplified, and the user experience is remarkably improved.

The invention discloses a dual-wavelength laser energy information simultaneous transmission battery and a preparation method thereof, and belongs to the technical field of laser batteries, the dual-wavelength laser energy information simultaneous transmission battery comprises a 808nm laser battery and a 1064nm laser battery, the 808nm laser battery and the 1064nm laser battery are bonded together through a glass substrate to form a three-layer structure, and a grid line of the 808nm laser battery on the upper layer is aligned with a grid line of the 1064nm laser battery on the lower layer. The integration level of the energy information simultaneous transmission receiving end can be improved, the miniaturization and integration requirements of the energy information simultaneous transmission battery are met, the manufacturing process of the energy information simultaneous transmission battery is optimized, the reliability and the performance stability of the battery are improved, wireless transmission of energy and information can be achieved at the same time, and the energy information simultaneous transmission receiving end is suitable for popularization and application. And power transmission and information transmission in special and complex scenes can be solved.

This utility model discloses a torque sensor for a tightening machine, comprising a battery, a PCB board, a housing, and an elastomer. One end of the elastomer is connected to the battery. The PCB board is located between the battery and the elastomer, and integrates a WIFI chip. A groove is provided inside the end of the elastomer connected to the battery, and the PCB board is installed within the groove, connected to the battery. The elastomer includes a force-bearing platform, strain beams, strain gauges, and a hub. One end of the hub is connected to the battery, and the other end is connected to the force-bearing platform via four strain beams. Each strain beam has a strain gauge connected to its outer surface, and the strain gauge is connected to the PCB board. The housing is fitted onto the strain beams of the elastomer. Advantages: This provides a torque sensor that uses wireless transmission and is battery-powered, reducing the impact of external wiring on the tightening machine's operation.

The invention discloses a terahertz hybrid integrated resonant tunneling diode detector packaged by a metal waveguide, and belongs to the technical field of terahertz wireless transceiving, the terahertz hybrid integrated resonant tunneling diode detector comprises an RTD tube core, a substrate circuit and a metal waveguide packaging structure, the substrate circuit comprises a substrate, an A-surface circuit and a B-surface metal ground, and the A-surface circuit and the B-surface metal ground are located above and below the substrate; the A-surface circuit comprises a resonance circuit, a microstrip E-surface probe of a microstrip-waveguide conversion structure, a bias filtering structure and a bias pad which are connected in sequence; the resonance circuit comprises a double-opening resonance ring, an MIM capacitor and a shunt resistor, the MIM capacitor and the shunt resistor are located at the opening position of the double-opening resonance ring, parallel split branches are arranged in the double-opening resonance ring in the signal transmission direction, and the RTD tube core is located at the split position of the parallel split branches. According to the invention, detection and oscillation can be realized at the same time, the device can be cascaded with a mixer packaged by a metal waveguide, the device has the advantage of expandability, and compared with monolithic integration, the device has the advantages of low cost, high design flexibility, fast iteration and the like on the premise of ensuring the detection effect.

The present invention provides a disabled person's lower limb robot motion detection system and detection method. The disabled person's lower limb robot motion detection system of the present invention comprises a left leg data acquisition module, a right leg data acquisition module, an analog-to-digital conversion module 1, an analog-to-digital conversion module 2, a microprocessor module, a Bluetooth module and a computer terminal; the left leg data acquisition module is electrically connected to the analog-to-digital conversion module 1; the right leg data acquisition module is electrically connected to the analog-to-digital conversion module 2; the analog-to-digital conversion module 1 and the analog-to-digital conversion module 2 are both electrically connected to the microprocessor module; the Bluetooth module is electrically connected to the microprocessor module. The present invention can effectively improve the accuracy and stability of lower limb motion detection.