109 results about "Gps antenna" patented technology

The utility model discloses a cylindrical launch folding wing unmanned aerial vehicle which comprises an unmanned aerial vehicle body, the unmanned aerial vehicle body comprises a square fuselage and a conical nose cover, a concave platform is arranged below the middle rear section of the fuselage, foldable wings are arranged in the concave platform, foldable empennages are arranged on the two side faces, close to the tail, of the fuselage, and the tail of the fuselage is connected with the tail of the fuselage. A foldable propeller is arranged at the tail of the fuselage, two blades of the propeller can be folded and retracted into an upper arc-shaped groove and a lower arc-shaped groove, close to the tail, of the fuselage respectively, a pod, a parachute cabin and a GPS antenna cabin are integrated in the nose cover, and a load cabin, a battery cabin and an equipment cabin are sequentially arranged at the front section, the middle section and the rear section of the fuselage. According to the cylindrical launching folding wing unmanned aerial vehicle, the design of the conical nose cover, the square fuselage, the lower single wing and the V-shaped empennage is adopted, launching is carried out through the square launching cylinder during launching, a plurality of cabin sections are designed in the square fuselage, each cabin section is fully utilized under the condition that the gravity center of the unmanned aerial vehicle is proper, and the assembly efficiency is greatly improved.

A fixed-wing aircraft flutter excitation and testing system and method. The fixed-wing aircraft flutter excitation and testing system comprises an excitation apparatus and a testing system; the excitation apparatus comprises miniature excitation rockets arranged at excitation points of wingtips of elastic structures on an aircraft, and an ignition control system electrically connected to the miniature excitation rockets; the testing system comprises an airborne signal acquisition subsystem and a vibration signal acquisition subsystem; the airborne signal acquisition subsystem comprises a data acquisition recorder and a GPS antenna, and is used for recording flight state parameters and GPS time of the aircraft; and the vibration signal acquisition subsystem comprises low-frequency vibration acceleration sensors arranged at testing points of rigid planes of the elastic structures on the aircraft, and a data acquisition recorder. According to the fixed-wing aircraft flutter excitation and testing system and method, various flutter modes can be accurately, conveniently and efficiently obtained by means of the excitation apparatus, and flight state parameters and vibration parameters required for flutter analysis are obtained by means of the testing system.

The invention discloses a lightning stroke observation system and method based on a dynamic visual sensor, and the system comprises the dynamic visual sensor which continuously obtains a dynamic sensing image of an observation region; the CMOS image sensor is used for continuously acquiring observation images of the observation area; the computer is used for continuously measuring and calculating the average brightness of the observation images of the two adjacent frames to obtain the change amplitude of the average brightness; when it is judged that the average brightness change amplitude exceeds a set threshold value, trigger signals are sent to the dynamic vision sensor and the CMOS image sensor; the dynamic vision sensor and the CMOS image sensor store a dynamic sensing image and an observation image through a computer based on a trigger signal; a lightning stroke observation message is generated based on the dynamic sensing image, the observation image, the triggering time and the like; the GPS antenna is used for recording the triggering time when the triggering signal is sent out; and the collector is used for collecting the electric field signal of the plate capacitor antenna, storing the electric field signal through the computer, and judging the polarity of the electric field signal.

The utility model discloses an unmanned aerial vehicle antenna support and an unmanned aerial vehicle, the unmanned aerial vehicle antenna support comprises a pedestal, a support frame, a mounting seat, a locking member and an anti-loosening member, and the support frame is movably connected with the pedestal; the mounting seat is arranged at one end of the base and is used for mounting a GPS antenna; the locking piece is movably connected to the supporting frame and used for being matched with the base to lock the supporting frame to the base. The anti-loosening piece is arranged outside the supporting frame and / or the base and used for being in abutting contact with the inner side of the locking piece and the outer side of the supporting frame and / or the base when the supporting frame is locked to the base through the locking piece. The height difference exists between the GPS antenna and the unmanned aerial vehicle body through the supporting frame, signals of the GPS antenna are prevented from being weakened due to the influence of the unmanned aerial vehicle body, the distance for receiving the signals is ensured, the supporting frame and the base are stably installed through the anti-loosening piece, and the anti-loosening effect is good. The antenna bracket of the unmanned aerial vehicle is not easy to loosen in the flight process of the unmanned aerial vehicle, and the signal receiving capability of the GPS antenna is prevented from becoming poor.

The utility model relates to the technical field of GPS (Global Positioning System) antenna production, in particular to full-automatic production equipment for a GPS antenna, which realizes surface cleaning, double-sided printing, pin insertion, solder paste brushing and welding, process processing and blanking and placing of a substrate, is high in automation degree, reduces the labor cost and the labor intensity, and greatly improves the production efficiency of the GPS antenna.

The utility model relates to electronic equipment technical field discloses a kind of radio frequency circuit and electronic equipment, radio frequency circuit includes: cellular communication antenna;First GPS antenna;Second GPS antenna, compared with first GPS antenna, with higher spatial isolation between the cellular communication antenna;Radio frequency switching circuit, the input of the radio frequency switching circuit is connected the first GPS antenna and second GPS antenna, the output of the radio frequency switching circuit is connected GPS demodulator;Control module is connected with cellular communication module, for according to the interference state of cellular communication module output, control the radio frequency switching circuit switching and the connection state of the first GPS antenna and second GPS antenna. By the interference state of cellular communication module output dynamic adjustment antenna path, to enhance overall anti-interference capability. It is favorable to provide more stable GPS receiving path in the scene where cellular interference exists.

A server of a mobile communication base station comprises a GPS module, a plurality of GPS antennas, a processing unit and a switch. The GPS antennas are used for receiving GPS signals, and the frequencies of the GPS signals received by the GPS antennas are different. The processing unit is coupled to the GPS module and is used for providing a selection signal. The switch is coupled to the processing unit, the GPS module and the plurality of GPS antennas, and is used for selectively providing one of the plurality of GPS signals to the GPS module according to the selection signal.

The utility model provides a non-contact power transmission network fault diagnosis device and system, and the device comprises an electric field collection board which is used for sensing and collecting a power frequency voltage magnetic field change signal of a power transmission line; the current sensor is used for sensing and collecting power frequency current and traveling wave current magnetic field change signals in the power transmission line; the main board is in signal communication connection with the electric field acquisition board and the current sensor through coaxial cables, and is used for receiving acquired power frequency voltage magnetic field change signals, power frequency current and traveling wave current magnetic field change signals which are used for judging whether a fault occurs in the line or not and judging the fault type; the GPS antenna is used for providing positioning information so as to judge the fault position on the line; the 4G antenna is used for reporting various information acquired by the device and a judgment result to the cloud platform master station; the energy storage battery provides electric energy for the whole device through the power supply board and the power supply protection board; the power panel is used for independently supplying power to the whole device, and the power protection board is used for providing EMC electromagnetic protection for the whole device.

The invention relates to the technical field of geographic information technology and hydraulic engineering digitization, and discloses a river exploration information transmission device which comprises a front cover, and a rear cover is arranged on the back face of the front cover. According to the invention, through the arrangement of the front cover, the rear cover, the voice switch, the sound box interface, the GPS antenna interface, the GPS data transmission interface and the GPS signal interaction device, the device can complete the precise positioning of the survey ship through the GPS signal interaction device and the GPS antenna interface in the operation process. After the accurate information of the survey ship is obtained, the user can check information of other water areas by pressing the voice switch, so that remote information transmission is realized, the user can report the information without investigating the position of the survey ship on site, and the flow of related information transmission in the water conservancy industry is simplified; and multi-azimuth information is displayed on one screen, so that a professional analysis report can be retrieved through intelligent response, and the practicability and the application value of the device are further improved.

The utility model discloses a GPS antenna retractable installation structure, which comprises an installation plate and a signal antenna, the surface of the installation plate is provided with a first installation groove, the lower surface of the first installation groove is provided with a second installation groove, and the bottom of the second installation groove is fixedly connected with a plurality of first springs. A clamping rod is fixedly connected to the upper end of the first spring, a plurality of rotating rods are fixedly connected to the interior of the first mounting groove, the clamping rod is rotatably arranged on the surfaces of the rotating rods, an inserting hole is formed in the surface of the mounting plate, inserting pieces are symmetrically arranged at the bottom of the inserting hole, and each inserting piece comprises an inserting block; third mounting grooves are formed in the two sides of the inserting block correspondingly, second springs are fixedly connected to the interiors of the third mounting grooves, and a fixing protruding block is fixedly connected to one end of each second spring. And by arranging the plug connector, the plug groove and the fixing groove, the mounting seat and the signal antenna can be conveniently plugged and fixed, so that folding and unfolding adjustment is convenient, and the use is convenient.

The artificial intelligence (AI) drone shooting device according to the present invention comprises: a drone aircraft (100) equipped with a radar that identifies and tracks a target; and a shooting control device (200) attached to the lower part of the drone to control automatic shooting. The drone aircraft (100) includes a GPS antenna unit (110) for determining the current location of the drone; a radar transceiver unit (120) for detecting elevation, azimuth, and distance values ​​of a target object; and a communication antenna unit (130) capable of communicating with a remote control unit. The radar transceiver unit (120) is installed on the drone aircraft in a vertical structure with a radar transmitter (Tx) and a receiver (Rx) to facilitate target detection and tracking even when the tracked target rapidly ascends or descends. The fire control device (200) includes a camera unit (210) composed of an optical (EO) camera, a TOD camera, and a laser rangefinder (LRF) to capture images of the target object; and a firing device (220) including a gun support and a firing device.

The rescue unmanned ship capable of carrying the amphibious unmanned aerial vehicle comprises a ship body, a rescue box and an airborne platform, and the ship body comprises a waterproof pan-tilt camera, a searchlight, a GPS antenna, a cooling fan, an underwater motor, a ship body mounting column, a cabin cover plate, a rotary steering engine and the like; the rescue box comprises a rescue box side door, a side door switch, a rescue box lower door, a lifesaving device and the like. If a plurality of persons are drowning and the rescue capacity of one amphibious unmanned aerial vehicle is limited, the amphibious unmanned aerial vehicle can be carried for rescue, after the amphibious unmanned aerial vehicle is used for rescuing one person, the person can be dragged to the position near the rescue unmanned ship, the rescue box can release the lifesaving device, and the amphibious unmanned aerial vehicle continues to rescue the next person; the overall rescue efficiency is improved, and the best rescue time is prevented from being missed.

The utility model discloses a built-in structure of a vehicle-mounted GPS (Global Positioning System) antenna device, which relates to the technical field of vehicle-mounted GPSs and comprises a shell, a control chip is internally connected with a connecting wire, the shell is internally provided with an accommodating cavity, the inner wall of the accommodating cavity is fixedly provided with a partition plate, one side of the partition plate is fixedly provided with a fixing ring, and the other side of the partition plate is fixedly provided with a connecting wire. A connecting plate is fixedly mounted on one side of the partition plate, a mounting plate is fixedly mounted on one side of the connecting plate, a moving rod is slidably connected to the interior of the mounting plate, a connecting block is fixedly mounted at one end of the moving rod, and a spring, a fixing ring and a supporting rod are matched, so that the connecting wire is fixed by the fixing ring when the connecting wire is connected; when the external connecting line is greatly pulled, buffering is reserved, the connecting position is prevented from loosening, vibration of the connecting line can be buffered, stable connection of the connecting line connector is achieved, and the connecting line can be prevented from loosening when being vibrated or pulled.

The present application provides a testing device, system, method and electronic device for an automatic emergency braking system, the device comprising: a control module, an inertial navigation system, a first GPS antenna and a first differential positioning module; the inertial navigation system collects the acceleration of a test vehicle relative to a target vehicle during braking; the first GPS antenna obtains first vehicle positioning information of the test vehicle, and obtains the relative speed of the test vehicle to the target vehicle during braking; the first differential positioning module obtains second vehicle positioning information of the test vehicle, processes the first vehicle positioning information using the second vehicle positioning information, and receives first base station positioning information from a positioning base station; the control module determines the distance between the test vehicle and the target vehicle based on the processed first vehicle positioning information, the first base station positioning information and the position information of the target vehicle, and performs a performance test on the automatic emergency braking system based on the distance, acceleration and relative speed.

The utility model discloses a GPS antenna with a wire harness structure, which comprises a GPS main body, a wire body arranged on the GPS main body, a protective wire harness mechanism arranged on the GPS main body, and a guide reset mechanism connected to the protective wire harness mechanism, the protection bunching mechanism comprises an external shell and a limiting plate, the external shell is arranged on the side wall of the GPS main body, the side wall of the external shell is open, limiting grooves are formed in the top wall and the bottom wall of the external shell, the limiting plate is movably arranged between the two limiting grooves, the limiting plate is connected with a guide reset mechanism, and the guide reset mechanism is connected with the external shell. A winding rod is arranged on the limiting plate, and a baffle is connected to the winding rod. The utility model belongs to the technical field of GPS antennas, and particularly relates to a GPS antenna with a wire harness structure.

The utility model discloses a water quality on-line detection system, including power supply module, singlechip, sensor module, serial port circuit and android host, the power supply module is used for the singlechip and android host power supply, the connecting end of singlechip and the connecting end of sensor module two-way electrical connection, the serial port circuit is connected with the android host. The connecting end of the single-chip microcomputer is bidirectionally and electrically connected with the connecting end of the serial port circuit, the connecting end of the serial port circuit is bidirectionally and electrically connected with the connecting end of the Android host, the Android host is bidirectionally communicated with a server through 4G, the Android host is positioned through a GPS antenna, the Android host is provided with three USB ports, and the USB ports are connected with the server. And the three USB ports are respectively connected with the USB flash disk, the ultra-wide angle camera and the mouse. The water quality online detection device has the beneficial effects that a detection environment can be conveniently photographed when water quality online detection is carried out, water quality detection data can be exported to a USB flash disk in an off-line manner in a network-free environment, and a mouse can be used for operation when touch screen operation is inconvenient to carry out on an Android host.

This utility model discloses a hermetically sealed combination antenna for 4G and GPS in wellbore applications, relating to the field of combined antenna technology. It includes a screw sleeve fixedly mounted on a housing, through which the GPS antenna and 4G antenna pass and are electrically connected to the housing. A rubber post, encasing the GPS and 4G antennas, is fixedly mounted inside the screw sleeve. This hermetically sealed combination antenna for 4G and GPS in wellbore utilizes the rubber post encasing the two antennas within the screw sleeve to seal and enclose the inner side of the screw sleeve, thereby improving the sealing line between the inner side of the screw sleeve and the antennas. This prevents external moisture from entering the inner side of the housing along the inner side of the screw sleeve and the antenna surface, improving the protection of the internal circuitry.

The application discloses a system for verifying the time precision of a TB time stamp recording device and a method thereof, which comprises a GPS antenna, a GPS receiver module, a microprocessor and a NAND gate; the GPS antenna is used for receiving signals transmitted by GPS satellites and transmitting the signals to the GPS receiver module; the GPS receiver module is used for outputting time service second pulses to the microprocessor and the NAND gate respectively after receiving the signals transmitted by the GPS antenna; the microprocessor is used for outputting a pulse control signal to the NAND gate according to a time information control instruction after receiving the time service second pulses transmitted by the GPS receiver module; and the NAND gate is used for outputting corresponding second pulses to the TB time stamp recording device for recording according to the received pulse control signal. The application is used for solving the technical problem that the precision of the TB time stamp recording device cannot be verified, so as to achieve the purpose of ensuring the precision of the TB time stamp recording device.

The utility model discloses a robot with a detachable navigation positioning module structure, which comprises a mobile robot, a round mounting seat and a top tray, a driver is mounted on the mobile robot, an assembly cap is mounted on the driver, a bayonet is arranged on the surface of the assembly cap, the top tray is screwed in the assembly cap, and the round mounting seat is fixed on the top tray. A plurality of springs are installed on the surface of the top disc, a clamping plate is connected into the assembling cap in a sliding mode, the clamping plate is provided with an inserting rod, a plurality of inserting holes are formed in the surface of the circular mounting base, the circular mounting base is connected into a bayonet in a sliding mode, and a GPS antenna group is installed on the circular mounting base; the GPS antenna group is connected with the assembly cap through the circular mounting seat, so that the GPS antenna group is detachably connected with the mobile robot, the GPS antenna group is positioned outside the mobile robot when the mobile robot is used for coping with a complicated indoor terrain, the signal strength is better ensured, and the GPS antenna group is more convenient to replace.

The utility model discloses an intelligent watch with a metal shell as a GPS antenna, which comprises a bottom shell, a watch mainboard is arranged in the bottom shell, a metal surface cover used as an antenna is fixed on the upper surface of the bottom shell, a display screen connected with the watch mainboard is mounted on the metal surface cover, a plurality of antenna feed points are arranged on the watch mainboard, and the antenna feed points are connected with the metal surface cover. Each antenna feed point is welded with a plurality of conductive elastic sheets which are used for being in contact with the metal surface cover after the bottom shell and the metal surface cover are assembled, and the metal surface cover is made of a metal material for manufacturing an antenna material; according to the utility model, the metal surface cover is used as the antenna of the watch mainboard, so that the antenna is not required to be arranged, excessive space is not occupied, the miniaturization of the intelligent watch is facilitated, and the signal of the built-in antenna is easily shielded by the hardware shell material.

The application discloses a kind of road surface bumping fast intelligent detection equipment, including driving vibration acquisition terminal and GPS antenna array, driving vibration acquisition terminal has hardware layer, drive layer, middle layer and application layer;The specific steps of detection method are as follows: S1, PC end parameter setting;S2, equipment sampling frequency configuration;S3, the installation of intelligent acquisition equipment;S4, the fixation and power supply of intelligent detection equipment;S5, road surface performance intelligent detection, satellite positioning module data and acceleration sensor module data are read in process, obtain positioning data and speed data, and calculate road surface bumping judgment value with 10 meters driving distance as interval;S6, the viewing and export of detection result.The application adopts the above structure and step of a kind of road surface bumping fast intelligent detection equipment and detection method, can detect the vibration in the process of road surface driving, and the setting of road surface bumping judgment threshold value is carried out intelligent detection of road surface bumping by driving speed normalization processing.

The utility model relates to an automobile ADAS test target object carrying platform which comprises an external target object fixing mechanism, a driving motor, a GPS antenna, a control system, a shell, a battery pack and a base. The battery packs are arranged on the two sides of the middle of the carrying platform. The GPS antenna and the control system are respectively arranged on two sides of the battery pack; the driving motor is arranged on the other side of the GPS antenna; the external target object fixing mechanism is mounted on the edge of one side of the carrying platform driving motor; the external target object fixing mechanism comprises a tray and an external platform; the external platform is fixedly connected with the carrying platform and the base through screws, and the tray is installed on the side, away from the carrying platform, of the external platform. An external target object fixing mechanism is used, a target object is fixed in front of the platform, and damage to the platform during collision is avoided; and through screw connection, external platforms with different lengths are convenient to replace, the adaptability of the carrying platform is improved, and meanwhile, disassembly and maintenance are also convenient.

The utility model discloses equipment for real-time acquisition and calibration of satellite signals, which comprises a shell, and a data processing module, a satellite signal transceiving module, a fakra connector and a USB (Universal Serial Bus) connector which are arranged in the shell and are connected through a circuit, the satellite signal transceiving module is mounted at the bottom of the data processing module; the fakra connector and the USB connector are arranged at the two ends of the data processing module respectively. The device and the vehicle-mounted recorder can use the GPS antenna at the same position to control the variable of the detection process, and the built-in network module of the handheld device can carry out data mutual transmission and bidirectional verification with a cloud data center, so that the positioning of the GPS is accurately calibrated.

The utility model provides a five-in-one vehicle-mounted antenna. The five-in-one vehicle-mounted antenna provided by the utility model comprises a bottom plate; the cover body is connected to the bottom plate, an accommodating space is formed between the cover body and the bottom plate, and two LTE (Long Term Evolution) antennas, two WIFI (Wireless Fidelity) antennas and a GPS (Global Positioning System) antenna which are not in contact with each other are arranged in the accommodating space; wherein the LTE antennas, the WIFI antennas and the GPS antenna are all vertically installed on the bottom plate, the two LTE antennas and the two WIFI antennas are all located at the end portion of the bottom plate, and the GPS antenna is located at the center of the bottom plate. According to the five-in-one vehicle-mounted antenna provided by the utility model, five-in-one of two LTE antennas, two WIFI antennas and one GPS antenna is realized, the internal structure of the antenna is more compact, various key technologies are fused to meet the requirements of modern intelligent automobiles, and the cover body adopts a shark fin-shaped structure, so that the overall appearance of the antenna is attractive and practical.

The utility model discloses an antenna support convenient to telescope and rotate, which is arranged on an iron tower and relates to the technical field of base station antennas. Comprising a rotating mechanism, a telescopic mechanism and a fixing mechanism, the rotating mechanism is fixed on the iron tower through the fixing mechanism; the telescopic mechanism is fixedly connected with the rotating mechanism; the rotating mechanism and the telescopic mechanism are used for controlling the position change of the antenna; and the fixing mechanism is used for fixing the antenna bracket on an iron tower. The rotating mechanism and the telescopic mechanism are combined, so that the convenience and safety of pulling the antenna holding pole to the tower body ladder stand are improved, the use requirements of the ladder stand in all directions of the tower body are met, and the working difficulty of GPS antenna installation and later maintenance is reduced.

The utility model discloses a satellite navigation receiving antenna, and relates to the technical field of GPS antennas. Comprising an antenna body and a supporting assembly, the antenna body is installed in the supporting assembly in a magnetic attraction mode, the antenna body comprises a packaging shell, a low-noise signal module, a ceramic antenna and a cable, the low-noise signal module is installed in the packaging shell, and the ceramic antenna is electrically connected to the low-noise signal module. According to the satellite navigation receiving antenna, the antenna body and the supporting assembly are used in cooperation, the fixing cassette in the supporting assembly is used for containing the antenna body, the first supporting arm, the second supporting arm, the back plate and the damping rotating shaft are used for folding and supporting, and multi-directional angle adjustment can be conducted according to needs, so that the GPS antenna has the advantage of being capable of being folded and adjusted; the problems that a traditional GPS antenna is generally directly installed on the surface of a carrier, the GPS antenna cannot be folded and unfolded, and inconvenience is easily caused are solved.

The utility model discloses a GPS antenna structure for an automobile data recorder product, the GPS antenna structure comprises a host, a flip assembly and a mounting bracket, the flip assembly is fixed on the mounting bracket, a GPS antenna module is fixedly mounted in the flip assembly, the host is rotatably connected with the flip assembly, a mainboard chip is mounted in the host, and the mainboard chip is connected with the flip assembly. And the mainboard chip is in communication connection with the GPS antenna module. According to the automobile data recorder, the GPS antenna part is independently placed at the position of the mounting bracket and is far away from a metal piece, other circuits and various chips in the host, so that the GPS antenna part can be close to an automobile windshield during mounting and is convenient to mount, and the GPS antenna can be kept immobile when the host of the automobile data recorder rotates; therefore, the problems of interference and signal instability are solved, the GPS positioning performance is improved, and the performance stability of the GPS antenna is ensured.

The application discloses a tramcar-mounted control system, a first car-mounted control host, a first communication unit and a first GPS antenna installed on a roof; the first car-mounted control host is connected with the first communication unit through a cable, and the first car-mounted control host is connected with the first GPS antenna through a first GPS feeder cable. The tramcar-mounted control system can reduce the economic cost of track construction of a tramcar.

The invention provides a terminal surrounding type antenna distribution structure and corresponding electronic equipment, a first antenna is located on one side of a fixed support, and a second antenna is located on one side of a first antenna support. The first 5G transmitting antenna, the second 5G transmitting antenna and the first antenna are connected to the same side of the fixing support, the first 5G receiving antenna is located on the other side of the first antenna support relative to the second antenna, and the second 5G transmitting antenna is connected with the second antenna support. The NFC antenna is located in the middle of the fixing support, and the GPS antenna is located on the other side of the fixing support relative to the first antenna. The first WIFI antenna is located on the other side of the fixing support relative to the first antenna, the second WIFI antenna is connected with the second antenna support, and the first antenna, the first 5G transmitting antenna, the second 5G transmitting antenna, the second 5G receiving antenna, the second antenna, the first 5G receiving antenna, the second WIFI antenna, the first WIFI antenna and the GPS antenna are sequentially arranged in the circumferential direction of the shell.

A measurement apparatus for the braking distance of a mine fall arrester, the measurement apparatus comprising a housing (1), wherein a display screen (2) is provided on the housing (1); an optical observation window (3), indicator lights (5), functional operation buttons (6), a mode switch (7), a memory card slot (8), and a data transmission interface (9) are provided on the front face of the housing (1); a cubic neodymium magnet (10) is provided on the back face of the housing (1); an optical glass column (11), a laser ranging module (13), a measurement LED fill light module (14), an imaging module (15), and an outwardly-flared metal shielding cover (16) are provided at the lower portion of the housing (1); and a central control module (17), a GPS module (18), an active ceramic GPS antenna (19), a wireless receiver module (20), a wireless transmitter module (21), a 315MHz control module (22), a 433MHz communication output module (23), a nine-axis accelerometer and gyroscope module (24), a power supply module, and a loudspeaker module (26) are provided in the housing (1). Further provided is a measurement method for the braking distance of a mine fall arrester.