65 results about "Big Dipper" patented technology

The invention discloses a double-machine cooperative hoisting operation guiding system and method based on Beidou positioning, and the system comprises a coordinate data implantation unit which is used for pre-storing a standardized coordinate template with environment compensation parameters; the sensor network is used for acquiring crane position, load and environment data in real time; the crane positioning and guiding unit is used for generating a multi-dimensional environment correction factor, dynamically comparing coordinates, weighting and calculating deviation, and planning a synchronous walking path through a multi-objective optimization algorithm; and the hoisting control unit is used for constructing a synchronous control model containing moment balance and kinematics constraint and adjusting hoisting parameters by adopting a closed-loop algorithm. According to the method, millimeter-level positioning guiding and double-machine load self-adaptive balancing can be achieved, segment inclination and wind disturbance influences are effectively restrained, hoisting synchronization precision and operation safety are remarkably improved, high-steady-state anti-inclination control can be completed without newly adding hardware, and the method has high engineering practicability and popularization value.

The invention discloses a real-time positioning method, system and device supporting multi-frequency Beidou signals and a medium. The method comprises the steps that multi-frequency observation is collected in parallel, and quality features are generated; performing distribution alignment of risk perception based on the quality features to obtain equivalent observation; generating a causal weight by adopting anti-fact evaluation based on influence approximation; in the cross-frequency fusion model, taking multiple paths as potential disturbance quantities, only implementing group stripping on suspicious stars, frequencies or time periods, and solving and outputting a positioning result in combination with robust constraint and increment; a confidence radius is generated on line, the confidence radius is used as a main control signal to execute risk-driven self-adaptive control, and the risk-driven self-adaptive control comprises weight adjustment, measurement subset selection and front-end loop and frequency chain working state adjustment; and implementing topological consistency goalkeeping on a multi-frequency phase level, and triggering time domain virtual array suppression and feeding back to the fusion model when abnormity occurs. The system can significantly improve the precision, robustness and integrity of Beidou multi-frequency real-time positioning.

The utility model discloses a static leveling instrument cable-stayed bridge monitoring device based on Beidou positioning, and relates to the technical field of monitoring. The static leveling instrument comprises a static leveling instrument, the bottom of the static leveling instrument is fixedly connected with a support, the bottom of the support is rotationally connected with a supporting rod, the front side of the support is fixedly connected with a transverse rod through a connecting piece, and the front side of the support is provided with a camera. By arranging the static level gauge, the support, the supporting rod, the rotating block, the fixing ring, the transverse rod and the signal transceiver, the supporting rod and the transverse rod form an extending support through the rotating block and the fixing ring, the signal transceiver is erected to an unshielded area on the outer side of a pier, it is ensured that Beidou satellite signals are stably received, and the static level gauge provides local settlement data; the method is integrated with the absolute coordinate data of Beidou positioning and the deformation data of the cross bar, compensates the limitation of a single sensor through an algorithm, improves the precision of settlement monitoring in a complex environment, and guarantees the long-term monitoring reliability.

The utility model discloses a Beidou positioning device for a life jacket. The Beidou positioning device comprises a Beidou No.3 RDSS communication chip; a single Beidou positioning module; an antenna; a water falling trigger chip; the self-consumption battery is low; an indicator light; a key; a back buckle wearing structure; the life jacket Beidou positioning device is accessed to a network through Beidou No.3, is networked with a background management platform, can send alarm information and position information to the management platform when encountering water or being manually triggered, is applied to a safety guarantee product for water operation personnel, automatically gives an alarm when falling into water, and is convenient to use. And uploading the position information and the state of the equipment to a management platform.

The application relates to the technical field of early warning systems, in particular to an early warning method and system based on Beidou short message communication, which comprises the following steps: collecting meteorological, seabed geological plate monitoring data and offshore platform data, matching time stamps, calculating disaster intensity through regression, analyzing exposure degree, dividing grid areas, generating risk values, sequencing and numbering, binding terminals to form a task queue, matching disaster types and risk avoidance instructions, compressing and sending short messages, comparing new and old risk values, adjusting the sending order when the threshold is exceeded, and generating early warning results. In the application, meteorological, seabed geological plate monitoring data and offshore platform data are fused and matched with time stamps, disaster intensity is calculated, marine area exposure degree is analyzed, risk distribution is refined, terminals are sequenced and bound, a priority task queue is generated, early warning information is compressed and transmitted through a satellite, the sending order is dynamically adjusted to ensure risk priority response, and the information transmission accuracy, efficiency and cross-region stability are improved.

The utility model relates to the technical field of intelligent livestock breeding, in particular to a Bluetooth collecting and positioning device based on Beidou communication and a necklace, which comprise a Beidou communication circuit, a Bluetooth host scanning circuit, a positioning circuit and a processing circuit. The device is compact and simple in structure, low in weight and low in cost, can be worn by cattle, sheep, horses, camels and other livestock in field grazing, scans matched Bluetooth node necklace broadcast data around the device through the Bluetooth host scanning circuit, obtains current position coordinate information through the positioning circuit, uploads the position coordinate information to a Beidou satellite through the Beidou communication circuit, and sends the position coordinate information to the Beidou satellite through the Beidou communication circuit. And the domestic Beidou communication system can ensure that the livestock can accurately report the positioning information in an outdoor area without signal coverage.

The utility model discloses an outdoor multifunctional base station based on Beidou and ultra wide band fusion, comprising a base station housing, one side of the base station housing is provided with a sealing pedestal, one side of the sealing pedestal is provided with a holder, the side wall of the base station housing is provided with two symmetrically arranged splicing frames, and the splicing frames are connected with the holder. The base station comprises a base station shell, a splicing frame is arranged on one side of the base station shell, a supporting mechanism used for supporting the splicing frame is arranged on one side of the base station shell, two symmetrically-arranged fastening frames are fixedly connected to one side of the splicing frame, a swing rod is rotationally connected between the two fastening frames on the same side, and a sliding pipe is slidably connected to the side wall of the swing rod. According to the utility model, the splicing frame, the protection plate, the swing rod, the sliding pipe, the connecting frame and other structures are arranged, and through adjustable connection of the fastening frame, the swing rod and the sliding pipe, the angle adjustment of the connecting frame and the fastening frame bracket can be realized, the angle adjustment of the base station in the installation process is convenient, and the problem of angle errors is avoided.

The utility model discloses a tower inclination monitoring device based on Beidou positioning, which relates to the technical field of power transmission line monitoring and comprises an unmanned aerial vehicle carrying an image recognition device and a laser range finder and a recognition mechanism mounted at the top end of a tower body, and the recognition mechanism comprises a recognition ball, a support rod and a mounting sleeve. A tower number is arranged on the surface of the recognition ball, the recognition ball is vertically fixed to the top end of the mounting sleeve through a supporting rod, the top end of the tower body is sleeved with the mounting sleeve, and a positioning hole is formed in the side end of the mounting sleeve to be matched with a bolt so that the mounting sleeve and the tower body can be fixed. The position of the identification ball relative to the tower body is not easy to deviate, and the monitoring precision is ensured; the recognition mechanism further comprises a cleaning structure, the cleaning structure is installed on the installation sleeve to keep the surface of the recognition ball clean, and therefore the unmanned aerial vehicle can conveniently recognize the tower number through an image recognition method.

The utility model discloses a supply chain material multi-mode positioning and tracking device, which belongs to the technical field of supply chain management and comprises a positioning component, a damping component and a positioning and tracking component, the positioning component comprises a workbench, and the positioning and tracking component is placed on the upper surface of the workbench. Through the cooperation of a signal processing module, a Beidou satellite signal receiving module, a GPS satellite signal receiving module, a power supply module, a storage module and a wireless signal receiving and transmitting module, the coverage range of a communication network of the equipment is wider, so that the positioning and tracking effects of the equipment are better. The shock absorption assembly can buffer impact force generated in the vehicle moving process, so that protection of the positioning tracking assembly is completed, a bidirectional lead screw and a positioning plate are arranged, people can conveniently disassemble and assemble the positioning tracking assembly, people can conveniently carry out daily maintenance on the positioning tracking assembly, and a stabilizing plate, a sliding rod and a sliding pipe are arranged, so that the stability of the positioning tracking assembly is improved. Auxiliary positioning can be carried out on the positioning tracking assembly.

The application discloses a kind of power grid facilities intelligent inspection system and method based on unmanned aerial vehicle and big dipper technology, it is related to unmanned aerial vehicle inspection management field, including map signal sensing module, route planning module, signal enhancement module and signal broken chain module, the present application is combined with accurate signal coverage model, intelligent path planning, attitude fine adjustment and fault detection module, realizes efficient, accurate power grid inspection. Positioning and environmental data are obtained by big dipper technology, signal initial coverage estimation map is generated, and signal strength is corrected in real time by Gaussian process, according to image quality constraint parameters and signal coverage data, the inspection route is optimized, and the attitude fine adjustment strategy ensures that the unmanned aerial vehicle is adaptively adjusted in the weak signal area, to maximize the inspection efficiency. The automation and intelligent level of power grid inspection is improved, and the inspection quality and task execution efficiency are improved.

The utility model relates to the technical field of vehicle-mounted Beidou equipment, in particular to a vehicle-mounted Beidou host with indicating lamps, which comprises the indicating lamps and a light guide assembly, the plurality of indicating lamps are mounted on a circuit board in a linear array manner, and the side edges of the indicating lamps emit light sources which are used for displaying and reflecting the working state of the circuit board through different colors; the light guide assembly is installed on the main machine shell and located right in front of a light source of the indicator lamp. The light guide assembly is used for transmitting and displaying the light source of the indicator lamp on the outer surface of the main body shell. The front end of the light guide assembly and the main machine shell are both made of 6061 aluminum alloy materials. The front end of the light guide assembly makes contact with the host shell to form the sealed electromagnetic compatibility space, the horizontally-installed indicator light is arranged on the circuit board, light is guided through the light guide column, and therefore the problem that the sealing performance and the electromagnetic compatibility performance of the indicator light are poor in the compact space is solved.

The present application relates to a kind of based on point source list and big product source flow direction modeling method of big product source, belong to traffic and environmental management technical field.It includes: constructing big cargo source database, using 5G positioning and big dipper trajectory data, by time-space fusion algorithm cleaning and reconstruction trajectory, identify key transport stop point;Dynamic spatial matching model is built to optimize correlation strategy, based on graph neural network integrates production plan and demand forecast generates potential path, through double-dimensional evaluation system planning candidate route;Adopt block chain technology to collect multi-source heterogeneous data, through intelligent prediction model realizes path classification and scheme formulation, and utilize adversarial generative network and expert knowledge graph to verify and update rule;Based on digital twinning technology realizes the dynamic mapping of transport path, through time-space big data analysis and causal inference model mining logistics correlation and forecast optimization direction.The accurate modeling and decision support of source-flow-direction relationship are realized.

1. Name of the designed product: Toy (Tianpi transformation robot). 2. Use of the designed product: Toy. 3. Design points of the designed product: in shape. 4. Picture or photo that best shows the design points: front view.

The invention discloses a cable well lid state monitoring system based on the Beidou position information technology, and relates to the technical field of cable state monitoring, and the system comprises a well lid state information obtaining module which obtains the comprehensive state data of a well lid in real time; the displacement judgment module judges the displacement of the well lid; the well lid state data analysis module is used for establishing a cable well lid state monitoring model based on the comprehensive state data of the well lid and predicting the state of the cable well lid at the next moment; and the early warning module analyzes the prediction data of the cable well lid at the next moment, calculates the abnormal probability of the cable well lid, and judges whether the cable well lid is abnormal or not based on the abnormal probability of the cable well lid. According to the invention, comprehensive monitoring, accurate prediction and intelligent early warning of the state of the cable well lid are realized by integrating Beidou position information and data of the attitude sensor and the vibration sensor and combining machine learning and deep learning technologies, and occurrence of safety accidents is effectively avoided.

The application discloses a tunnel scene LoRa-Mesh self-organizing network Beidou positioning system, comprising: a tunnel scene modeling module, which is used for generating a tunnel three-dimensional structure model and outputting structure deviation correction parameters; a deployment parameter generation module, which is used for generating a LoRa-Mesh backbone node deployment coordinate set, a Beidou positioning signal transmitting unit deployment coordinate set and a coverage parameter set; a LoRa-Mesh backbone node self-organizing network module, which is used for completing deployment and constructing a LoRa-Mesh network; a Beidou positioning signal transmitting module, which is used for completing deployment and reporting, via LoRa-Mesh, the deployment coordinates and working state data of a transmitting unit; a Beidou positioning signal simulation generation module, which is used for generating adaptive pseudo data one by one in combination with Beidou satellite original data; and a pseudo data issuing and transmitting control module, which is used for issuing pseudo data and controlling a transmitting unit to transmit Beidou radio frequency positioning signals. The application realizes stable coverage and continuous transmission of Beidou positioning signals in a tunnel, and improves positioning precision, system reliability and tunnel scene adaptation capability.

The utility model discloses a Beidou receiver portable terminal. The portable terminal comprises an explosion-proof box body and an explosion-proof box cover, wherein the explosion-proof box body is hinged with the explosion-proof box cover; a Beidou receiver and a panel are arranged in the explosion-proof box body; the panel is arranged above the Beidou receiver and is detachably fixed in the explosion-proof box body; a plurality of antenna slots, a plurality of data transmission interfaces, a power interface and a power switch are arranged on the panel, and the data transmission interfaces are in communication connection with the Beidou receiver; the power interface is electrically connected with the power switch, and the power switch is electrically connected with the Beidou receiver. And the plurality of antennas are installed in the corresponding antenna slots, and the plurality of antennas are respectively in communication connection with the Beidou receiver. According to the utility model, the antenna and the data transmission interface are integrated in the explosion-proof box body through the panel, so that efficient integration of the receiver and the antenna is realized, and limitation of a fixed fusion mode of a ground station is avoided; and the early-stage test efficiency of the unmanned aerial vehicle system is greatly improved, and the research and development process of the unmanned aerial vehicle is accelerated.

The utility model relates to the technical field of supporting frames, and particularly discloses a supporting frame for state detection of Beidou positioning equipment, which comprises a support body, a Beidou positioning device is movably arranged on one side of the top of the support body, and a light sensation monitor is arranged on one side far away from the Beidou positioning device; one side of the middle of the support body is fixedly connected with a connecting plate, the end of the connecting plate is fixedly connected with a boss, the bottom side of the end of the connecting plate is fixedly connected with a base, the bottom wall of the base is flush with the bottom wall of the support body, a driving assembly is arranged in the base, a rotating rod is arranged in the middle of the boss, and a protective film is wound around the middle of the rotating rod. A group of protective films which can be wound and contracted are arranged at the end part of the bracket body, and the protective films can perfectly cover the surfaces of the Beidou locator and the light sensation monitor after being stretched, so that the waterproof and dustproof effects are achieved, and the protective effect on the Beidou locator during outdoor use is improved; and the overall service life is prolonged.

The invention relates to the technical field of wireless communication and positioning, and discloses a low-power-consumption battery-free Bluetooth base station based on micro energy collection and Beidou positioning, which comprises an MCU module, a micro energy collection module, a control module, a Beidou positioning module, a Bluetooth communication module and a storage module. Wherein the micro energy collection module provides stable power supply for the other modules, the control module coordinates the working time sequence and data transmission logic of the modules, and the Bluetooth communication module adopts a radio frequency wake-up mechanism and is in a dormant state when not in communication. According to the invention, through efficient interaction between the SPI interface and the control module, rapid transmission of information such as positioning data and equipment state is supported, a plurality of base stations can realize data intercommunication through the MESH ad-hoc network, and communication parameters can be dynamically adjusted and communication efficiency and power consumption can be balanced according to energy states and communication requirements.

The utility model discloses a handheld machine of big dipper no. 3 charging device relates to handheld machine of big dipper no. 3 technical field, including handheld machine body, its bottom is equipped with the spigot, back -clamping type charger, its bottom is equipped with the plug, the utility model has the advantageous effects that: through the interlocking structure of back -clamping type charger and handheld machine body, linkage V -shaped fin, elastic heat conduction pad and cooling fan form high -efficient heat dissipation system, when the engagement, V -shaped fin extrusion heat conduction pad makes the contact surface deformation convex, and the baffle restraint deformation direction, both enhance and handheld machine body's close adhesion compactness to promote the heat conduction efficiency, and expand the contact area with airflow, make V -shaped fin and guide vane guide the airflow that cooling fan drives orderly flow in the passage, and the patch that extends to the groove outside strengthens heat exchange, and the heat dissipation effect is improved significantly, effectively solve the heating problem when handheld machine charges, improve the equipment stability and service life.

The utility model discloses a mounting device for port operation environment monitoring equipment based on Beidou positioning, which belongs to the technical field of monitoring equipment mounting equipment, and comprises a base, the top of the base is fixedly connected with two connecting plates which are symmetrically arranged, and the two connecting plates are fixedly connected with the top of the base. A supporting plate is fixedly connected between the tops of the two connecting plates, linear guide rails are fixedly connected to the bottoms of the two ends of the supporting plate correspondingly, a lead screw can be driven to rotate through an adjusting knob, and under the action of the moving blocks, the connecting rods and the linear guide rails, the distance between clamps on the two moving frames can be rapidly adjusted; meanwhile, the two arc-shaped flow guide plates, the flow guide channels and the flow guide holes are additionally arranged, the wind direction is changed to reduce wind pressure and wind load turbulent flow interference, and the stability of the whole structure is improved.

The present application relates to the technical field of robot cluster control, and particularly relates to a cluster inspection robot task coordination and scheduling method based on Beidou short message communication, comprising the following steps: S1, a scheduling center generates a task list according to an inspection area and task demand, assigns a task number, target coordinates and effective time to each task, forms a task instruction set and issues the task instruction set to each robot through Beidou short message; S2, each robot calibrates a local clock according to a Beidou time signal after receiving the task instruction set, generates a local task queue and executes a corresponding task in an effective time window. In the present application, a multi-node relay system and an adaptive relay selection algorithm are constructed, so that the Beidou short message is cascadedly forwarded by multiple robots under complex terrains such as mountainous areas, gorges and tunnels; even if the direct connection signal between a single robot and a satellite is blocked, the inspection data and task instructions can still be transmitted through a relay link established by adjacent robots.

The invention relates to a bulk product source flow direction modeling method based on a point source list and a Beidou track, and belongs to the technical field of traffic transportation and environment management. The method comprises the steps that a bulk goods source place database is constructed, 5G positioning and Beidou trajectory data are utilized, reconstructed trajectories are cleaned through a space-time fusion algorithm, and key transportation staying points are identified; constructing a dynamic space matching model optimization association strategy, integrating a production plan and demand prediction based on a graph neural network to generate a potential path, and planning a candidate path through a two-dimensional evaluation system; a block chain technology is adopted to collect multi-source heterogeneous data, path classification and scheme making are realized through an intelligent prediction model, and a generative adversarial network and an expert knowledge graph are utilized to verify and update rules; dynamic mapping of a transportation path is realized based on a digital twinning technology, and logistics association is mined and an optimization direction is predicted through space-time big data analysis and a causal inference model. And accurate modeling and decision support of the source-flow-direction relationship are realized.

The invention discloses an authorization control type protective safety belt based on Beidou positioning and an intelligent lockset, the intelligent lockset is integrated on the outer side of a waist support of a safety belt main body, and the safety belt main body is provided with a back D-shaped ring and a waist D-shaped ring. A first lock catch, a second lock catch and a third lock catch of the intelligent lock are arranged on the left side, the right side and the rear side of an intelligent lock body correspondingly, a numeric keyboard, a fingerprint recognition area, a buzzer and a warning lamp are sequentially arranged on the upper surface of the intelligent lock body from left to right, and a charging interface is formed in the front side of the intelligent lock body. A Beidou positioning communication module, an identity recognition module, a Bluetooth communication module, an acceleration sensor, a control module, an early warning prompt module and a power supply module are integrated in the intelligent lock body. According to the safety belt, authorization management and control are conducted on a user and the application range, the situation that unauthorized personnel use the safety belt in the cross-border range is avoided, the risk of illegal operation and accident occurrence is reduced, and traceable informatization management is achieved.

The utility model belongs to satellite positioning and data transmission technical field, and disclose a data acquisition processing integrated equipment based on big dipper orientation, include: acquisition processor body, the acquisition processor body inside integrated big dipper orientation module, data acquisition module, data processing module, data storage module, wireless transmission module and power management module, big dipper orientation module and data acquisition module inside all integrated data line, the configuration joint is had on the data line, the joint can with real -time data processing module and carry out plug -in type connection, data processing module realizes the connection with data storage module, wireless transmission module and power management module through internal communication link, the utility model provides a kind of data acquisition, processing, storage and wireless transmission equipment based on big dipper orientation, solve the positioning accuracy low in prior art, data processing efficiency is poor, and wireless transmission is not stable and so on.

The utility model provides a dual-mode antenna for Beidou satellite positioning, which comprises an antenna assembly and a dual-mode antenna module, and is characterized in that the antenna assembly comprises an antenna pedestal with a built-in buzzer, an end cover and a fixing rod; wherein the end cover is in threaded connection with the top of the antenna pedestal through a bolt, the fixing rod is in threaded connection with the bottom of the antenna pedestal, the dual-mode antenna module is installed on the upper surface of the antenna pedestal, and a sealing mechanism is installed at the bottom of the outer side wall of the antenna pedestal; through the built-in dual-mode antenna module, the communication antenna has a dual-mode communication function, the communication modes of the antenna are increased, the antenna has the characteristics of high gain and good signals, and then the sealing mechanism is used for improving the sealing performance between the fixed rod and the antenna pedestal, so that the communication efficiency is improved. Moreover, the antenna can be connected with external equipment through the six-core watertight joint, and the sealing performance of the connection part is improved, so that the antenna is more suitable for the marine environment, and the service life of the antenna is ensured.

A kind of ground wire tension threshold early warning type anti-drop reinforcing device based on big dipper positioning system, including extension pull rod and big dipper positioning module, one end of extension pull rod is connected with DB adjusting plate located at one end of ground wire by force sensor, the other end of extension pull rod is connected with the middle part of ground wire by wire clamp, force sensor and big dipper positioning module are electrically connected with controller in common;Isolation component is arranged between extension pull rod and ground wire, isolation component includes connecting ring, two coaxial settings and opposite screw directions fixed bolts are arranged on connecting ring, one end of fixed bolt located outside connecting ring is rotatably connected with mounting block, through hole for accommodating extension pull rod or ground wire is formed in mounting block;The utility model avoids the generation of failure due to the contact between extension pull rod and ground wire.

The utility model discloses a big dipper intelligent terminal relates to vehicle mounted equipment technical field, including main part structure, including base, one side of base is provided with terminal body, one side of terminal body is provided with cooling fan, and, installation component, including the mounting panel of setting in the other side of terminal body, one side of cooling fan is fixedly connected with mounting panel, the bottom fixed connection of mounting panel one side has lower bracket, and the top of lower bracket is in contact with terminal body, and the top of terminal body is provided with the clamping piece, and the other side of mounting panel is provided with the connecting piece, through installation component, discarded traditional bolt mounting mode, need not tool to be able to complete the installation of terminal body fast, greatly simplifies the installation process, improves installation efficiency, can overcome the poor problem of elastic clamping firmness simultaneously, significantly enhanced the firmness of terminal installation, ensures that equipment can stably operate under various use environment.

The invention relates to the technical field of environmental pollution source supervision data processing. According to the environmental pollution source supervision data processing method and system based on Beidou positioning, Beidou signals sent by a monitoring terminal in real time are received, and monitoring position information, pollution information and signal physical characteristics in the Beidou signals are extracted; the Beidou signals are then compared with an environmental reference pattern established for the monitoring point location to determine a consistency score. The environment reference mode is established according to the environment information of the monitoring site and historical Beidou signals, and is used for representing the expected range of the signal physical characteristics of the monitoring site in a normal state. And finally, according to the consistency score, judging whether the Beidou signal is a real signal or has a deception risk, and triggering an alarm. Therefore, false data is prevented from being misjudged as effective data, and authenticity and effectiveness of environmental pollution source supervision data are ensured.

The application provides a power monitoring data general transmission method and system based on a Beidou short message, and relates to the technical field of a power monitoring system. The method comprises the following steps: a substation collects power monitoring data of a power system, classifies and evaluates the power monitoring data, and assigns priorities to the power monitoring data to generate classified monitoring data with priority marks; the substation determines the data item values of the corresponding power monitoring data based on the priority marks, screens out corresponding data combinations that maximize transmission efficiency, encapsulates the data combinations into transmission frames with an LPDU frame structure, and the transmission efficiency is formed by the superposition of the data item values corresponding to the power monitoring data included in the data combinations; the substation sends the transmission frame to a master station by using an adaptive transmission strategy model; and the master station performs intention analysis and intention verification on the transmitted power monitoring data, generates a control instruction, and then issues the control instruction to the substation. The application solves the problem of efficient coding of data under the limitation of frame length.

The utility model provides an underground roadway space measuring device based on Beidou positioning and orientation, which comprises a centering rod, the top of the centering rod is fixedly provided with a circular level bubble, and the bottom of the centering rod is supported on an underground roadway; the Beidou positioning and orientation module is arranged at the top of the centering rod and comprises a compass and a Beidou GNSS receiver; the data acquisition module is arranged at the bottom of the centering rod and above the water surface in the underground roadway and comprises an underground searchlight, a visible light camera, a range finder and a handheld SLAM scanner, and all the devices are coaxial with a compass; and the telescopic centering supporting rods are provided with three-stage telescopic structures, are arranged in the middle of the centering rod and are supported on the foundation, and the three telescopic centering supporting rods are arranged with the centering rod as the center. The underground roadway space measurement device based on Beidou positioning and orientation can obtain space measurement data and visible light camera videos, and realizes high-precision underground roadway three-dimensional space measurement.