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2804 results about "Positioning equipment" patented technology

Head support guide system for transcranial magnetic stimulation

A method, system, and apparatus for a head guide support system for use in measuring a transcranial magnetic stimulation (TMS) treatment coil on a patient's head are described herein. The coil positioning apparatus, also called a coil positioning device or a coil angle guide, may include a support structure supported by the patient's head; a first instrument configured to indicate a position angle for placement of the TMS coil; a second instrument configured to indicate a distance from the support structure for placement of the TMS coil; and / or a third instrument configured to indicate an orientation angle for rotation of the TMS coil.
Owner:NEURONETICS INC

Industrial equipment fault early warning analysis method and system based on graph neural network

The invention discloses an industrial equipment fault early warning analysis method and system based on a graph neural network, and relates to the technical field of intelligent fault diagnosis and equipment state monitoring, and the method comprises the steps: constructing a time slice data tensor, and forming a graph neural network input structure; on the basis of the graph neural network input structure, feature learning and correlation analysis of the graph neural network are executed, and node-level embedding representation is obtained; and based on the node-level embedding representation, calculating fault relevance response distribution of the nodes, evaluating propagation risks and positioning equipment fault sources. According to the method, the problem that a traditional method cannot effectively express a spatial structure or a cooperative relationship between measuring points in an early modeling stage is solved, the spatial perception capability of overall modeling is improved, so that a data foundation is laid for subsequent feature extraction and anomaly analysis, and the reconstruction accuracy is improved by comparing an embedded reconstruction value with an original observation value and calculating a node-level reconstruction error. Fault influence range evaluation and traceability positioning are realized, and quantitative support is provided for early warning response and maintenance decision.
Owner:南京朗坤苏畅工业互联网有限公司

Unmanned aerial vehicle intelligent inspection method for construction site operation safety

The invention relates to the technical field of unmanned aerial vehicles, and discloses an unmanned aerial vehicle intelligent inspection method for construction site operation safety, which comprises the following steps: step 1, deploying an unmanned aerial vehicle, personnel positioning equipment and a base station, and establishing a time synchronization network and a space coordinate conversion model through the base station; step 2, when the unmanned aerial vehicle executes an inspection task, detecting a shielding area in an image in real time based on a preset route, and generating a dynamic obstacle avoidance path according to the three-dimensional model to control the unmanned aerial vehicle to perform multi-view supplementary shooting; and step 3, carrying out space-time alignment on the multi-view supplementary shooting image and positioning data acquired by the personnel positioning equipment. According to the invention, the technical scheme of dynamic shielding perception and multi-view adaptive supplementary shooting is adopted, a high-precision space coordinate system constructed by a reference station and a real-time shielding detection mechanism are combined with dynamic obstacle avoidance path planning, and comprehensive coverage inspection of a high-altitude and hidden operation area is realized.
Owner:BEIJING SHENGTAI JIEDA TECH DEV CO LTD

Construction site intelligent safety management system and method based on BIM technology

The invention discloses a construction site intelligent safety management system and method based on a BIM technology, and relates to the technical field of constructional engineering, and the method comprises the following steps: S100, building a three-dimensional digital model of a construction site by using BIM software, and collecting construction site data by deploying a video camera, personnel positioning equipment and an environment sensor; s200, preprocessing the acquired data, and performing potential safety hazard identification and environment detection on the construction site; s300, fusing and displaying the generated BIM three-dimensional digital model and the processed data through spatial alignment, data mapping and dynamic updating; s400, calculating the probability of occurrence of potential safety hazards on the construction site and a comprehensive decision score; and S500, carrying out quantitative assessment on the potential safety hazards of the construction site by constructing a risk assessment model, sorting the calculated risk scores of the potential safety hazards, and determining the priority processing sequence of the potential safety hazards of the construction site, so that intelligent safety management of the construction site is realized.
Owner:CHINA CONSTRUCTION INDUSTRIAL & ENERGY ENGINEERING GROUP CO LTD

In-tunnel construction vehicle meeting scheduling system based on positioning equipment

The invention discloses an in-tunnel construction vehicle meeting scheduling system based on positioning equipment. The system comprises a basic service module which is used for storing basic data for business service analysis in an acquisition and collection mode; the business service module is used for carrying out detailed analysis of the corresponding service through the data acquired by the basic service, and providing an analysis result to the display end for display; and the display end module is used for displaying the analysis result of the business service module, wherein the display modes comprise a mobile phone APP, a webpage large screen, an LED panel, a tunnel loudspeaker and a tunnel traffic light. The system carries out weight grading on vehicle and personnel positioning labels by standardizing a tunnel construction process, and integrates data of avoidance points of a transverse tunnel. And in combination with an intelligent technology, efficient vehicle meeting scheduling, intelligent construction path planning and avoidance point path planning of the construction area are realized.
Owner:CHINA TRANSPORT INFORMATION TECH GRP CO LTD

Unmanned aerial vehicle low-altitude three-dimensional data acquisition method and system

The invention discloses a low-altitude three-dimensional data acquisition method and system for an unmanned aerial vehicle, and particularly relates to the field of three-dimensional data acquisition, and the method comprises the steps: selecting a four-rotor unmanned aerial vehicle, carrying a laser radar, a high-resolution camera and high-precision positioning equipment, and carrying out the low-altitude flight; the laser radar collects surface information, and the camera shoots a ground image; then, processing the acquired data, including abnormal value removal, missing value supplementation, image denoising and image enhancement; thirdly, converting the processed data into three-dimensional point cloud data, and identifying an image to obtain an actual appearance and a name of a target object; and finally, performing high-precision topographic surveying and mapping and three-dimensional modeling according to the processed three-dimensional point cloud data to generate a final three-dimensional model.
Owner:ZHEJIANG DIANCHUANG INFORMATION TECH CO LTD

Gravel foundation bed leveling device and method suitable for shallow water area

The invention belongs to the technical field of foundation bed leveling, and particularly relates to a gravel foundation bed leveling device and method suitable for a shallow water area. The gravel foundation bed leveling device comprises a leveling frame, a measuring device, an adjusting device and a scraper, the leveling frame comprises two longitudinal beams and a plurality of cross beams, and a leveling bin is formed between every two adjacent cross beams; the measuring device comprises four measuring rods detachably connected to the four corners of the leveling frame, and positioning equipment is installed at the top ends of the measuring rods. The adjusting device comprises four height adjusting screw rods and four screw sleeves, the four screw sleeves are arranged near the four measuring rods and fixedly connected into the leveling frame, and the height adjusting screw rods are connected into the screw sleeves in a one-to-one threaded mode and penetrate through the leveling frame; the two ends of the scraper in the length direction are detachably connected to the top faces of the cross beams on the two sides of the leveling bin in a pressed mode respectively. The novel leveling device is provided for manual leveling of the gravel foundation bed in the shallow water area, and the leveling precision of the gravel foundation bed in the shallow water area can be improved.
Owner:CCCC FIRST HARBOR ENGINEERING CO LTD +1

Audio processing device and method, augmented reality device, equipment and storage medium

The invention provides an audio processing device and method, an augmented reality device, equipment and a storage medium, and belongs to the technical field of virtual reality display and sensing. The audio processing device comprises a positioning device which is configured to track and position a user in a real space in real time, determine positioning information of the user and send the positioning information to a processor; the processor is configured to determine target positioning information of the user based on pre-established spatial information and the real-time positioning information of the user; determining association relationship information between the user and a virtual sound source in a virtual space based on pre-established space information and real-time target positioning information of the user; obtaining human body parameters of the user, and determining an audio filtering result matched with the user based on the association relationship information, the human body parameters and the audio frequency of the virtual sound source; and reconstructing the audio to be played based on the audio configured for the virtual sound source in advance and the audio filtering result.
Owner:BOE TECHNOLOGY GROUP CO LTD +1

Power plant operation management method based on three dimensions

The invention discloses a power plant operation management method based on three dimensions, and belongs to the technical field of power plant operation management, and the management method comprises the following specific steps: Q1, building a power plant three-dimensional model and dividing functional regions according to the civil engineering structure and equipment layout of a power plant; q2, accessing video monitoring, personnel positioning, equipment data and operation information into the three-dimensional model, and performing information linkage; according to the method, the prediction accuracy is improved, the false report rate and the missing report rate are reduced, dynamic data can be analyzed in real time, a prediction result can be quickly generated, early warning can be given out, the deployment cost is reduced, the response efficiency of the system is improved, and the complexity of multi-model development and maintenance is reduced; resource waste or risk omission caused by local optimization can be effectively avoided, potential problems caused by improper resource scheduling are reduced, and the overall resource utilization rate and team cooperation efficiency are improved.
Owner:GUANGZHOU CHINASOFT INFORMATION TECH

Personnel trajectory drawing method and system based on AI algorithm

The invention discloses a personnel trajectory drawing method and system based on an AI algorithm. The method comprises the following steps: acquiring a positioning equipment signal and monitoring video data; performing dynamic Kalman filtering denoising processing on the positioning equipment signal to obtain first track data, and performing adaptive illumination compensation enhancement processing on the monitoring video data to obtain first video data; performing trajectory prediction compensation on the signal interruption segment based on an LSTM neural network; personnel motion posture features and scene semantic features are extracted; constructing a space-time correlation graph by adopting a graph convolutional neural network to obtain enhanced trajectory data; performing multi-scale trajectory reconstruction based on an improved Transform architecture to generate final personnel trajectory information; and outputting a visual trajectory report including trajectory precision evaluation, abnormal behavior marking and an electronic fence trigger event. According to the method, deep fusion of multi-source heterogeneous data and accurate reconstruction of the trajectory are realized, and continuity and reliability of personnel trajectory drawing in a complex scene are remarkably improved.
Owner:HENGFENG INFORMATION TECH CO LTD

Air-ground cooperation system and air-ground cooperation method based on own intelligence

The invention discloses an air-ground cooperation system and an air-ground cooperation method based on intelligence, and relates to the field of intelligent unmanned system control. The system comprises an intelligent unit, a multi-element sensing unit, a communication unit and a task execution unit. Based on a Vision-Language-Action (VLA) framework, an intelligent unit with a body realizes end-to-end analysis of a natural language instruction and a visual instruction, fuses sensing data of an unmanned aerial vehicle and an unmanned vehicle, generates a joint feature code with time-space alignment, and dynamically allocates a cooperative task. The communication unit supports low-delay end-to-end communication and real-time data synchronization between clusters, and ensures efficient interaction between agents. The multi-element sensing unit is integrated with a visual camera, a laser radar and high-precision positioning equipment, and air-ground environment multi-mode sensing is achieved. And the task execution unit supports the unmanned aerial vehicle to complete coordination actions in a complex scene. According to the scheme, the problems of insufficient multi-mode perception, limited natural language interaction and low dynamic cooperation efficiency of the existing system are solved, and the cooperation capability and system robustness of the unmanned aerial vehicle and the unmanned aerial vehicle in a complex environment are remarkably improved.
Owner:NANJING UNIV

Welding positioning equipment for sliding guide shoe of elevator

The invention discloses welding positioning equipment for an elevator sliding guide shoe, and relates to the technical field of welding positioning. A plurality of positioning holes are symmetrically formed in the top of the base at equal intervals. A driving assembly is arranged on the left side of the base. An electric sliding rail is arranged at the top of one end of the back face of the base. A control assembly is arranged in the electric sliding rail. A transmission assembly is arranged above the control assembly. An anti-gap device is arranged on the top of the base. Fixed-point and fixed-position welding of workpieces is achieved, horizontal limiting is conducted on the two sides of the outer walls of the workpieces through L-shaped straight plates, it is guaranteed that the workpieces are horizontally arranged side by side and combined for welding work, meanwhile, limiting and stabilizing are conducted by means of the outer walls of telescopic positioning columns matched with bolt holes of the workpieces, and vibration generated during equipment operation is avoided; and a tiny gap is generated between the two workpieces to be welded, so that the welding firmness is reduced.
Owner:JIANGXI XINGYU ELEVATOR CO LTD

Dual-mode digital key positioning method and device, positioning equipment and storage medium

The embodiment of the invention relates to the technical field of digital key positioning, and discloses a dual-mode digital key positioning method and device, positioning equipment and a storage medium. The method comprises the following steps: acquiring positioning information of BLE and UWB dual-mode anchor points at a preset position on a vehicle on a digital key; a Bluetooth judgment result is obtained according to the RSSIBLE, and when an effective UWB signal exists, a UWB judgment result is obtained by adopting multiple judgment conditions according to the positioning information; when the effective UWB signal does not exist, counting the loss duration of the UWB signal and obtaining a UWB judgment result at the last moment before the UWB signal is lost; and a compensation judgment result is obtained according to the TimeLostUWB, the Bluetooth judgment result and the Area LastValidUWB. Through the combination of the positioning information collected by the dual-mode single anchor point and the multi-dimensional judgment condition, the good positioning performance can be achieved, and meanwhile the cost is reduced.
Owner:SHANGHAI INGEEK CYBER SECURITY CO LTD

Dual-mode dual-anchor digital key positioning method and device, and positioning equipment

The embodiment of the invention relates to the technical field of digital key positioning, and discloses a dual-mode dual-anchor digital key positioning method and device, positioning equipment and a storage medium. The method comprises the following steps: acquiring positioning information of UWB and Bluetooth dual-mode and dual-anchor points at a preset position on a vehicle, and adopting multiple judgment conditions according to the positioning information of UWB master and slave anchor points to obtain a judgment result inside and outside the vehicle; executing a plurality of groups of judgment conditions corresponding to the UWB master anchor point, the UWB master anchor point and the slave anchor point according to a preset sequence, and if the inside and outside judgment result is outside the vehicle, respectively obtaining respective corresponding outside area judgment results according to the positioning information of the UWB master anchor point and the UWB slave anchor point; and obtaining an out-of-vehicle area judgment result according to the out-of-vehicle area judgment result of the UWB master anchor point and the UWB slave anchor point, the NLOS conditions of the UWB master anchor point and the UWB slave anchor point and the Bluetooth judgment result. Through combination of positioning information collected by dual-mode and dual-anchor points and multi-dimensional judgment conditions, good positioning performance can be achieved, and cost is reduced at the same time.
Owner:SHANGHAI INGEEK CYBER SECURITY CO LTD

Human-assisted positioning equipment for mounting prefabricated wall panel

The invention discloses manual auxiliary positioning equipment for prefabricated wallboard installation, and relates to the technical field of prefabricated wallboard installation, the manual auxiliary positioning equipment comprises two fixing plates used for being installed at the two ends of a formwork, supporting frames are fixedly connected to the tops of the two fixing plates, and supporting frames used for supporting wallboards are arranged on one sides of the two supporting frames; a supporting piece used for positioning is arranged between the supporting frame and the supporting frame. The semi-ring positioning frame drives the hoisted prefabricated wall panel to move by clamping the mounting piece on the positioning plate, the prefabricated wall panel is in a hoisting state and is supported by the supporting frame, so that the prefabricated wall panel can be driven to move without relatively large thrust, and a reinforcing steel bar smoothly penetrates through the semi-ring positioning frame to be inserted into a reinforcing steel bar hole by descending the prefabricated wall panel; the positioning of the prefabricated plate is completed, the steel bar holes and the steel bars can be quickly inserted in a hole alignment mode, repeated observation by personnel is not needed, and the installation efficiency of the prefabricated wall plate is improved.
Owner:NO 1 CONSTR ENG CO FUJIAN PROV

Partial discharge positioning method, partial discharge positioning equipment, partial discharge positioning device and readable storage medium

The invention relates to a partial discharge positioning method, equipment and device and a readable storage medium. The method comprises the following steps: collecting a visible light image and an infrared image of a to-be-detected area containing a partial discharge phenomenon, fusing the visible light image and the infrared image to generate a double-spectrum positioning map, collecting a sound wave signal of the to-be-detected area through a spiral microphone array, carrying out fusion processing on the double-spectrum positioning map and a sound source thermodynamic diagram of the sound wave signal, and obtaining a sound source thermodynamic diagram of the sound wave signal. Generating a comprehensive discharge positioning map, adopting a clustering algorithm to identify a plurality of features of the visible light image, the infrared image and the sound wave signal, determining the discharge position and the discharge type of the partial discharge phenomenon in the comprehensive discharge positioning map based on the plurality of features, and outputting the comprehensive discharge positioning map. Marking the discharge position and the discharge type of the partial discharge phenomenon in the comprehensive discharge positioning map; the optical, thermal and acoustic multi-mode information of the discharge is integrated, the positioning precision of the partial discharge is greatly improved, the fault condition can be conveniently and quickly judged, and the quick inspection requirement is met.
Owner:SHUOHUANG RAILWAY DEV +1

Indoor positioning method and system based on vision, geomagnetism and inertial navigation

The invention provides an indoor positioning method and system based on vision, geomagnetism and inertial navigation, and the method comprises the steps: obtaining inertial navigation data, and determining a local region where a target object is located in an indoor space according to the inertial navigation data; wherein the inertial navigation data is obtained by a positioning device carried by a target object; obtaining a visual image of the local area, and determining the position of the target object in a pre-constructed spatial model according to the visual image to obtain a first position; determining a target range according to the first position, and simulating an environment magnetic field around the target object under the condition that the magnetic disturbance object exists in the target range; real-time magnetic field data is obtained, the real-time magnetic field data is obtained through measurement of magnetic field measurement equipment carried by the target object, the real-time magnetic field data is matched with the environment magnetic field, the specific position of the target object in the local area is determined, and a second position is obtained. According to the invention, multiple positioning technologies are fused, and the indoor positioning accuracy can be further improved.
Owner:GUANGDONG ZHONGKE KAIZER INFORMATION TECH CO LTD

Heterogeneous multi-sensor information fusion method and system for accurate positioning of underground coal mine mining equipment

The invention provides a heterogeneous multi-sensor information fusion method and system for accurate positioning of coal mine underground mining equipment, and the method comprises the steps: S1, collecting inertial navigation information, and extracting the pose information of a heading machine; s2, inputting the pose information of the heading machine into a millimeter wave radar; s3, distance measurement information of the laser radar and the millimeter wave radar is collected; s4, extracting target position information from the target library; s5, constructing first branch information and second branch information; s6, performing information fusion on the collected inertial navigation information, the first branch information and the second branch information by adopting a fusion technology based on a factor graph to form fusion information; s7, returning and transmitting the fusion information to the inertial navigator; and S8, the inertial navigator carries out navigation information correction according to the fusion information. According to the invention, a multi-sensor fusion scheme which takes inertial navigation as a basis and takes a laser radar and a millimeter-wave radar as main auxiliary equipment is adopted, so that positioning equipment which can completely adapt to performance requirements of underground operation of a coal mine is provided.
Owner:XIJING UNIV

Icing detection method for power transmission line

The invention discloses a power transmission line icing detection method, and belongs to the field of power transmission lines. In order to solve the problems that only partial ice coating calculation can be carried out on ice coating of a power transmission line through an image, the influence of ice coating on the whole line in a span cannot be judged, and meanwhile, the applicability of ice coating detection is improved. A plurality of sensors such as the first line detection equipment, the second line detection equipment, the first tower positioning equipment and the second tower positioning equipment are arranged. According to the coordinates of the plurality of sensors, in combination with a power transmission line parabolic model, the horizontal stress of the line and the vertical stress of a suspension point as well as the icing load and the icing average thickness of the whole span under the conditions with ice and without wind and without ice and without wind are obtained in real time, and the influence of icing on the power transmission line is determined more comprehensively.
Owner:SHANDONG SENTER ELECTRONICS

Method for creating a model for positioning, and a method for positioning

A method is provided for positioning of a device within an environment. The device may access a positioning model stored on the device, wherein the positioning model is based on training of positioning in the environment and represents characteristics of wireless signals in an area in which the device is located. The device may acquire sensor data by one or more sensors of the device, wherein the sensor data comprises position-dependent measurements for one or more positions of the device, wherein each position-dependent measurement relates to a wireless signal transmitted between the device and a radio transmitter arranged in the environment. The device may determine a location of the device within the environment based on inputting of the sensor data to the positioning model.
Owner:COMBAIN MOBILE AB

Construction site personnel positioning method and device, electronic equipment and storage medium

The embodiment of the invention discloses a construction site personnel positioning method and device, electronic equipment and a storage medium. Acquiring a satellite positioning signal, a barometer signal and an inertial navigation signal; judging whether the strength of the satellite positioning signal is normal; and if not, determining the current floor and the current indoor position of the positioning equipment wearer in the building according to the barometer signal and the inertial navigation signal. According to the embodiment of the invention, the accuracy of personnel positioning in the building construction site is improved.
Owner:THE UNIV OF NOTTINGHAM NINGBO CHINA

Cable positioning equipment for power grid construction

The invention relates to the technical field of power grid construction, and particularly discloses a power grid construction cable positioning device which comprises a device body and further comprises a bending assembly arranged at the side end of the device body and used for bending a cable; and the limiting assembly is arranged on the bending assembly, and the limiting assembly is used for limiting the bending angle of the cable by the bending assembly. By means of the bending assembly, when the conveying direction of the cable needs to be adjusted, the cable does not need to be bent manually, the directional conveying direction of the cable can be adjusted through the bending assembly so that the cable can be conveyed and laid in a steering mode, and workers can use the cable conveniently; according to the cable bending device, the bending angles of cables with different thicknesses can be limited when the cables are bent through the bending assembly, so that the cables are prevented from being excessively bent to cause damage to the cables, and the cables can be prevented from being excessively bent possibly when the cables are bent manually.
Owner:SUIXI COUNTY POWER SUPPLY CO OF STATE GRID ANHUI ELECTRIC POWER CO LTD

Indoor and outdoor high-precision positioning equipment for airport

The utility model relates to the technical field of positioning systems, in particular to an airport indoor and outdoor high-precision positioning device, which comprises an outdoor Beidou differential base station, an indoor pseudo satellite base station, a high-precision Beidou positioning terminal and an installation assembly, and the installation assembly is connected with the indoor pseudo-satellite base station, so that seamless connection with an outdoor satellite navigation system can be realized, and indoor and outdoor integrated high-precision positioning navigation is realized.
Owner:CHONGQING JIANGBEI INT AIRPORT

Low-altitude fire fighting system and method based on urban CIM and Beidou positioning

The invention relates to the technical field of urban fire safety rescue, in particular to a low-altitude fire fighting system and method based on urban CIM and Beidou positioning. According to the system and the method, full space-time accurate positioning is realized through the Beidou differential base station and the UWB indoor positioning equipment; integrating the urban information model system and unmanned aerial vehicle cluster data, and constructing a multi-source heterogeneous data set; a coordinate system is unified based on a space-time reference calibration module, and fire behavior prediction, path planning and resource scheduling are realized through AI computing nodes; the unmanned aerial vehicle task distribution module is used for realizing multi-vehicle cooperative rescue; and iteratively optimizing system parameters through a closed-loop adaptive optimization module. The method is suitable for fire emergency rescue in an urban complex building environment, and the rescue response speed, the decision-making precision and the cooperative combat capability are remarkably improved.
Owner:HUBEI POST TELECOMM PLANNING DESIGN

Chip picking and positioning equipment for chip packaging

The invention discloses chip picking and positioning equipment for chip packaging, and relates to the technical field of chip packaging. The equipment comprises a case, a mounting frame, a conveying assembly and a picking and positioning structure, an adsorption air channel, a screw hole pipe, a limiting air pipe and other parts are arranged in an adsorption arm in the picking and positioning structure, and movement and function control of an adsorption rod are achieved through spiral transmission connection of the screw hole pipe and a spiral ribbon rod and the synergistic effect of the limiting air pipe, a piston compensation air pipe and the like; the screw hole pipe is connected with the track rolling body, and the track rolling body moves in the nearly-surrounding movement track to drive an activating agent roll coating pen and a glue rolling wheel rod on the activating piece and the glue rolling piece to perform activating and glue rolling treatment at chip welding spots and bonding positions, so that the problem that a substrate is not synchronously activated when a chip is picked up and positioned is solved, and the chip picking and positioning efficiency is improved. The connection reliability of the chip and the substrate is improved, integration of multiple functions is realized, time and space are saved, and the stability, reliability and production efficiency of chip packaging are improved.
Owner:YEYIMIAO (NANJING) TECHNOLOGY CO LTD

Positioning device

The utility model provides a positioning device. The positioning device comprises a shell, a shading block and a circuit module arranged in the shell, the circuit module comprises a first circuit board, a communication module, a positioning module, a control module and a light sensor, and the communication module, the positioning module and the light sensor are all in electric signal connection with the control module; the shell is provided with an installation face used for being attached to equipment to be positioned, a light through hole is formed in the shell wall, close to one side of the installation face, of the shell, the light sensor corresponds to the light through hole, and the light shading block is movably arranged in the light through hole to block the light through hole; when the shell is detached from the to-be-positioned equipment, the shading block is separated from the light through hole, the light sensor receives external light through the light through hole, converts a light signal into an electric signal and transmits the electric signal to the control module, and the control module controls the communication module to send alarm information to a mobile terminal of a preset emergency contact person. The positioning device provided by the utility model has a dismounting alarm function, so that the safety is improved.
Owner:SHENZHEN CHEZHIJIE INTERNET OF VEHICLES CO LTD