37 results about "Ecompass" patented technology

The utility model discloses a three-dimensional electronic compass module which is characterized in that the three-dimensional electronic compass module comprises an electronic compass main body and four groups of adjusting components respectively arranged at four corners of the electronic compass main body, mounting holes are formed in the four corners of the electronic compass main body, and each group of adjusting components comprises mounting sleeves respectively arranged in corresponding mounting interiors. When the three-dimensional electronic compass module is installed, the installation sleeve is fixedly installed on equipment, and after installation is completed, the elastic piece on the corresponding adjusting assembly can be made to stretch out and draw back by adjusting the adjusting nut on a certain adjusting assembly, so that the three-dimensional electronic compass module is installed. Therefore, the height of the corresponding angle of the electronic compass main body can be adjusted, namely the electronic compass main body can be adjusted to be in a horizontal state, so that the electronic compass main body is kept in the horizontal state after being mounted, and inaccurate data caused by inclination of the electronic compass main body after being mounted is avoided.

The application discloses a kind of underwater defect detection robot path planning and tracking control method based on multi-data fusion, to solve the problem of poor positioning accuracy, unstable path tracking and insufficient defect approaching ability in GPS denial environment.The method uses improved artificial bee colony algorithm to optimize BP neural network assisted Kalman filter, fuses INS, DVL, electronic compass and depth gauge data, realizes high-precision integrated navigation;Secondly, combined with global "bow" shape coverage and local pure tracking approaching strategy, generate full coverage scanning path and fine approach to high priority defect points;Finally, based on pre-defined time sliding mode controller, cooperate disturbance observer and adaptive mechanism, realize the fast robust tracking of path.Experiments show that the positioning error is only 0.15m after DVL failure, the local approaching accuracy is 0.05m, the path tracking convergence time is 5s, the steady-state deviation is 0.03m, which is significantly better than the traditional method.The application is suitable for automatic defect detection of underwater structures such as bridge pier, dam, submarine pipeline, etc.

This invention provides a method for measuring the verticality of a tower crane using an electronic compass, comprising the following steps: Step 1: Measurement equipment selection: including a main controller, an electronic compass, a display screen, and an alarm; Step 2: Equipment installation: Install the electronic compass at any main member position on the top of the standard section, install the main controller and display screen in the operator's cab, and install the alarm in a suitable location; Step 3: Verticality measurement: Input the coordinates of the four main members at the foundation position and the tower crane height H into the main controller. The main controller calculates the verticality of the tower crane by reading the coordinates of the electronic compass. If the verticality exceeds the standard, the alarm will sound. This method can effectively detect the verticality of the tower crane in real time. Connecting the main controller to a mobile phone allows for real-time reading of the tower crane's verticality information on the mobile phone. If the verticality exceeds the standard, the mobile phone can also issue an alarm; thus, it can promptly detect abnormalities in the verticality of the tower crane.

The utility model discloses an anti-vibration electronic compass structure, which comprises an electronic compass main body and four groups of damping components respectively arranged at four corners of the electronic compass main body, mounting holes are arranged at the four corners of the electronic compass main body, and each group of damping component comprises an outer sleeve arranged in the corresponding mounting hole. A mounting sleeve is coaxially arranged in the outer sleeve, the outer wall of the mounting sleeve is connected with the inner wall of the outer sleeve through a plurality of transverse elastic pieces, the two ends of the mounting sleeve are connected with the electronic compass main body through longitudinal elastic pieces respectively, and transverse vibration and longitudinal vibration of equipment during working can be absorbed through the transverse elastic pieces and the longitudinal elastic pieces; the vibration reduction effect is good, parts on the electronic compass main body are prevented from being damaged due to vibration, and the service life of the electronic compass is prolonged.

The invention discloses an STM32-based multi-communication technology fusion unmanned vehicle digital twin positioning system, and aims to solve the problems of insufficient positioning precision and difficulty in multi-communication technology integration caused by a multi-path effect and non-line-of-sight propagation in a complex industrial environment. The system adopts a hardware layer double-board modular design, integrates UWB, GPS / BD dual-mode satellites, IMU (MPU6050), electronic compass (QMC5883), WiFi / BT and NB-IoT modules, guarantees signal integrity and electrical isolation through PCB optimization and multi-stage LDO voltage stabilization, and constructs a multi-source sensor fusion hardware basis. According to the system, a unique digital ID of equipment is established based on an industrial internet identification analysis system to realize cross-domain secure transmission of data, an electromagnetic path is rehearsed by using a ray tracing technology based on a digital twin closed-loop optimization mechanism, multi-domain characteristic differences of physical and virtual signals are extracted through wavelet transform, and optimal position estimation is output in combination with Bayesian inference. And meanwhile, an A * / D * Lite algorithm is adopted to realize dynamic path planning and obstacle avoidance. A four-layer architecture including a hardware layer, a network layer, a data layer and an application layer is integrally constructed, and real-time interaction of a physical entity and a virtual model and iterative optimization of a positioning result are realized. The system improves the positioning precision of complex scenes, effectively inhibits multipath interference, improves the reuse rate of hardware resources, and is suitable for the high-precision positioning requirements of unmanned vehicles in the fields of intelligent logistics, industrial automation and the like.

The invention relates to the technical field of airport clearance measurement, and particularly discloses an airport clearance obstacle measurement method and device. According to the airport clearance obstacle measuring device, the laser ranging assembly, the GPS positioning module, the three-axis acceleration sensor, the electronic compass and the air pressure altitude sensor are integrated, collected data of obstacles and observation points are calculated and processed through the MCU of the main control module, and the result of whether the obstacles are too high or not can be automatically generated. Meanwhile, the calculation method disclosed by the invention does not need to carry out specific modeling on the obstacle and interference comparison on the airport flight area limiting surface, and only needs to compare the elevation of the obstacle with the limiting height of the limiting surface of the point where the obstacle is located to obtain a result, so that the calculation process is simple and can be realized with less calculation force; and the measurement and calculation processes are more efficient.

This invention discloses a parking monitoring system, including a parking monitor and a ground information system. The parking monitor is installed on a vehicle and typically includes a beacon processing unit, a parking identification unit, an information processing unit, a communication unit, and an electronic compass. The ground information system includes a parking area marking unit and an information source device. A starting information source device is installed on the ground at the parking starting point, and the starting information source device stores parking and location-related information. The beacon processing unit is a distance-limited transceiver module with beacon search and beacon broadcast functions that can be switched. Beacon processing units are interconnected; the information broadcast module of the previous parking sequence provides valid beacon information to the information search module of the next parking sequence, and the beacon broadcast searches a specific distance and / or guides to form a continuous parking order in the parking succession area. The parking monitoring system involved in this invention has the advantages of low cost, ease of use, reduced manpower assistance, simple construction, and strong socio-economic benefits.

This invention discloses a navigational ADCP measurement vessel orientation warning system based on sensor data fusion, belonging to the field of hydrological measurement technology. It includes: a sensor data acquisition module, which collects target vessel sensor data in real time based on electronic compass and gyroscope sensors; a data processing module, which uses a Kalman filter fusion algorithm to establish an attitude estimation state-space model, recursively predicts the target vessel's heading angle through state equations, and combines observation equations with real-time sensor data information to obtain the optimal estimated value of the heading angle, acquiring the real-time heading angle after data fusion; a lighting control module, which sets a heading angle threshold range to determine the real-time heading state of the vessel; if the real-time heading angle is continuously and stably within a preset angle range for more than 1 second, a corresponding color control signal is dynamically generated; and a fault self-checking module, which defines and executes a periodic self-checking and online calibration process for the electronic compass and gyroscope sensors. This invention improves the maintainability of the system.

A kind of probe for underwater pipeline depth electromagnetic method measurement and electromagnetic measurement method.The present application applies a three-component orthogonal coil group installed in a non-metallic material shell as a measurement sensor of electromagnetic signal, and a three-dimensional electronic compass, together with an embedded circuit board to form a measurement probe, for electromagnetic measurement of the position and depth of covering of underwater steel pipelines and cables.The probe is lowered into the water through a telescopic connecting rod, and is connected to a main device on the equipment of a mother ship by a umbilical cable, which is responsible for parameter setting and display and storage of measurement results.During the detection process, the probe is towed vertically along the pipeline by the mother ship in the form of a towfish, and the azimuth angle data measured by the compass are uploaded to the main device, which calculates the position of the target pipeline and the thickness of the covering layer.The present application can be widely applied to the measurement of the position and depth of covering of underwater steel pipelines and cables in rivers and oceans.

The application discloses a ground stress testing device and testing method, which comprises a pressurized water injection device, a drill pipe, an upper packer, a rotatable flow guide plate, an electronic compass and a lower packer. One end of the drill pipe is communicated with the pressurized water injection device, and the other end is communicated with a water inlet of a channel switching valve. The channel switching valve further comprises a first water outlet channel and a second water outlet channel which are selectively communicated with the water inlet. The upper packer is communicated with the first water outlet channel. The rotatable flow guide plate comprises a central flow guide pipe which is rotatably arranged between the upper packer and the lower packer, and flow guide blades which are arranged on the central flow guide pipe. A flow guide slit is arranged on the flow guide blades. When water flows into the central flow guide pipe and is sprayed through the flow guide slit, the flow guide blades rotate and drive the electronic compass to rotate, so that the automatic tracking of the water pressure crack direction is realized. The lower packer is connected with the upper packer through a rigid pipeline. The application has simple structure, low manufacturing cost, and can measure the stress size and direction of rock mass simultaneously.

The application provides a geomagnetic dynamic iron drift compensation method and device, a storage medium and a terminal device, and applies to the technical field of electronic compass calibration. The method comprises the following steps: in response to a geomagnetic iron drift compensation trigger condition, controlling an excitation coil integrated in a geomagnetic sensor package to generate an excitation magnetic field in at least three linearly independent positive and negative direction pairs in sequence according to a preset sequence; obtaining original magnetic field measurement data of the geomagnetic sensor in each direction in the at least three linearly independent positive and negative direction pairs; determining a soft iron interference matrix based on the original magnetic field measurement data in each direction and the corresponding excitation magnetic field, wherein the soft iron interference matrix represents magnetic field distortion; determining a hard iron offset vector based on the soft iron interference matrix and the original magnetic field measurement data in any direction; and compensating real-time output of the geomagnetic sensor according to the soft iron interference matrix and the hard iron offset vector. The method is used to achieve the effect of high-precision, adaptive and real-time dynamic compensation of geomagnetic iron drift.

The invention provides a geomagnetic dynamic iron drift compensation method and device, a storage medium and terminal equipment, and is applied to the technical field of electronic compass calibration. The method comprises the following steps: in response to a ground magnet drift compensation trigger condition, controlling an excitation coil integrated in a geomagnetic sensor package to sequentially generate excitation magnetic fields in at least three linearly independent positive and negative direction pairs according to a preset sequence; obtaining original magnetic field measurement data of the geomagnetic sensor in each direction of at least three linearly independent positive and negative direction pairs; based on the original magnetic field measurement data in each direction and the corresponding excitation magnetic field, a soft iron interference matrix is determined, and the soft iron interference matrix represents magnetic field distortion; determining a hard iron offset vector based on the soft iron interference matrix and the original magnetic field measurement data in any one of the directions; and compensating the real-time output of the geomagnetic sensor according to the soft iron interference matrix and the hard iron offset vector. The method is used for achieving the effect of high-precision, self-adaptive, real-time and dynamic compensation of earth magnet drift.

The invention provides a multi-module day and night dual-purpose multi-target detection telescope, which is applied to the technical field of multi-target detection, and comprises an infrared imaging module used for collecting a thermal radiation signal of a target object under a first illumination condition and processing the thermal radiation signal to generate infrared imaging data; the low-light imaging module is used for collecting a visible light signal under a second illumination condition and processing the visible light signal to generate low-light imaging data; the microwave radar module is used for transmitting a microwave signal, receiving a reflection signal and generating microwave radar detection data based on the reflection signal; the wireless transmission module is used for packaging and sending the infrared imaging data, the low-light imaging data and the microwave radar detection data; the electronic compass module is used for measuring the orientation of the multi-module day and night dual-purpose multi-target detection telescope by using a geomagnetic field induction technology and generating azimuth angle data; and the display module is used for generating target detection display data according to the infrared imaging data, the low-light imaging data, the microwave radar detection data and the azimuth angle data and displaying the target detection display data.

A large-range laser ranging and positioning instrument comprises an instrument shell (21), a key (2), a display screen (6), a TYPE-C interface (12) and a battery (15), a laser ranging module (16) and a gun sight telescope (17) are installed on a bottom plate (14) of the instrument shell (21) in parallel, and a laser emitting lens (9) and a laser receiving lens (10) of the laser ranging module (16) and an objective lens (8) of the gun sight telescope (17) are arranged on the same side of the instrument shell (21). The laser emission lens (9) is exposed through a rear panel (11) of the instrument shell (21); the rear panel (11) is also provided with a TYPE-C socket (12); and an electronic compass module (19) and a pitch angle module (20) are respectively arranged on the bottom plate (14) on the left side of the gun aiming telescope (17). The positioning distance can be more than 10 kilometers, the longitude and latitude coordinates, the slope distance, the horizontal distance, the azimuth angle and other position parameters of a target point can be quickly obtained only through simple operation, comprehensive and accurate navigation information is provided for other applications, and the method is applied to the field of position measurement.

The application belongs to the technical field of electronic compass calibration, and discloses a simple and independent calibration method and system for an electronic compass, which comprises the following steps: loading factory modification parameters, and solving the spatial posture of the device in real time; guiding the user to place the device horizontally, and completing a complete circular motion around the Z axis and the X axis or the Y axis respectively, and synchronously collecting six-axis sensor data; extracting and compensating the offset vector by using an extreme value estimation algorithm, and solving the parameters of each axis based on a linear least square method; and calculating the calibration quality score and storing the optimized parameter matrix. The application realizes the independent and rapid calibration of the electronic compass by means of two-axis spatial motion guidance and real-time state feedback without the need of external special calibration equipment, solves the problems of the existing method, such as the dependence on special equipment, the complexity of operation, and the difficulty in adapting to dynamic interference, and significantly reduces the dependence on the calibration environment, and improves the availability and operation efficiency of the on-site calibration.

The utility model discloses a module formula portable wind measuring tool belongs to wind measuring tool technical field. Including wind measuring module main part, the inside of wind measuring module main part is equipped with electronic compass sensor, and the electronic compass sensor part extends to the outside of main part, and the wind adjusting platform includes rotary position sensor and force arm mechanism, is used for automatic direction finding, and the wind measuring wind wheel includes rotary motor and calibration platform, and rotary motor stator fixedly embeds, and rotor is directly connected with wind wheel, the utility model discloses the accurate south direction data of getting through the extension type electronic compass sensor of wind measuring module main part built -in, combines the wind vane angle signal of rotary position sensor detection in the wind adjusting platform, and the real wind direction is calculated through treater, does not need to rely on artificial subjective judgment, and simultaneously cooperates the data reliability of wind vane mark strip and can be verified fast, solves the problem of the lack of direction reference, reduces the wind direction measurement error, provides accurate direction data support for wind farm inspection, construction.

The application provides a precision calibration method, a chip, an equipment, a medium and a program product. The method comprises the following steps: the method is applied to a first chip, the first chip is installed in an electronic equipment, an electronic compass is also installed in the electronic equipment, the method comprises the following steps: running a low-power mode; in response to the electronic equipment being lifted, the low-power mode is exited, and the precision of the electronic compass is calibrated to obtain a calibration result; in the case that the calibration result meets a first condition, the low-power mode is started, and the first condition comprises that the calibration result meets a calibration success condition. The running state of the low-power mode is adjusted in a timely manner according to the demand of the electronic compass, the power consumption overhead of the electronic equipment is reduced, and the power consumption space pressure of the electronic equipment is relieved.

The invention discloses a non-contact geological occurrence measuring device, a measuring method, equipment and a medium, and particularly relates to the technical field of geological survey, the technical key points are as follows: an electronic compass module is used for acquiring the geographic orientation of a measuring point; the distance measuring module is used for acquiring distance values from the measuring points to a plurality of target point positions on the to-be-measured structural surface; the attitude sensing module is used for acquiring attitude data of the measuring device; and the data processing module is used for constructing a three-dimensional space coordinate system based on the geographic orientation acquired by the electronic compass module, and calculating the geological occurrence of the to-be-measured structural plane by using the distance value measured by the distance measuring module and the attitude data acquired by the attitude sensing module in combination with the three-dimensional space coordinate system.

The present disclosure provides a deep rock mass three-dimensional ground stress measuring device and method, and relates to the technical field of geological surveying. The device comprises: a stress gauge integrated with a distributed optical fiber sensor and a three-dimensional electronic compass is installed at a predetermined depth in a borehole; the azimuth and inclination of the borehole are automatically obtained through the three-dimensional electronic compass; the reflected wavelength data is collected through the distributed optical fiber sensor before and after the full stress release operation on the borehole wall surface; the wavelength data and the directional data are transmitted to a data processing unit, which automatically calculates and outputs the three-dimensional ground stress tensor and the principal stress in the geodetic coordinate system according to the principle of full stress release of the local borehole wall surface. Thus, the problems of low efficiency, large error and difficulty in realizing multi-point synchronous in-situ monitoring caused by the complicated manual installation, the dependence on external equipment for posture measurement and the limitations of single-point measurement in the traditional method are solved, and the full-process automatic, high-precision and expandable three-dimensional ground stress in-situ measurement is realized.

The invention relates to a long-endurance underwater small target autonomous detection AUV (Autonomous Underwater Vehicle), which sequentially comprises a collision avoidance unit, a collision avoidance unit, a collision avoidance unit and a collision avoidance unit from a bow part to a tail part along the axial direction, and the collision avoidance unit comprises a collision avoidance sonar and an electronic compass; the small target detection unit comprises a flash lighting lamp and a synthetic aperture sonar, and two transducers of the synthetic aperture sonar are symmetrically installed on the broadside of the head of the AUV; the front electronic cabin unit comprises a communication sonar, a depth gauge, an exchange board, a sensing processing board, a first liquid leakage sensor and a first semicircular secondary lithium battery; and the navigation unit comprises wireless communication positioning equipment, inertial navigation equipment and a Doppler log. Through multiple means of integrating high-resolution detection load, optimizing platform energy and power efficiency, adopting light-weight and high-strength structural design and the like, the ultra-long endurance working capacity of the AUV is achieved, and the imaging quality and autonomous detection efficiency of the AUV on underwater small targets are remarkably improved.

This invention discloses a navigation method suitable for field geological surveys, specifically relating to the fields of geological exploration and navigation positioning technology. It involves collecting three-component geomagnetic field data to calculate rotational angular velocity and extracting travel cycles to calculate triaxial cross-correlation coefficients. When both rotational and correlation anomalies occur simultaneously, a geomagnetic anomaly zone is identified, and the mechanical and electronic compasses are forcibly shut down. The accurate magnetic azimuth and satellite coordinates before entering the anomaly zone are extracted as initial references. Inertial dead reckoning is initiated, and the heading change or absolute heading angle is obtained. Periodic drift corrections are performed on the dead reckoning to correct the navigation heading. This invention accurately identifies geomagnetic anomaly zones using dual anomaly detection based on geomagnetic field vector rotational angular velocity and triaxial correlation coefficients, forcibly shutting down compass output to avoid misleading information. Furthermore, by integrating inertial dead reckoning with visual or polarized light heading correction, a corrected navigation heading independent of the geomagnetic field is output, ensuring the accuracy and safety of field geological surveys.

The application relates to the technical field of wireless communication, and is a wireless communication device suitable for long distances, a control method, terminal equipment and a storage medium, which comprise an electric pan-tilt component, a high-precision three-dimensional electronic compass module, a multifunctional weather monitor and a bridge system; the electric pan-tilt component is used for bearing and stably installing the high-precision electronic compass module, the multifunctional weather monitor and the bridge system, intelligently controlling the lifting operation of the device, and accurately regulating and controlling the device posture; the high-precision three-dimensional electronic compass module is used for acquiring the azimuth angle and the pitch angle information of the current device in real time, and calculating accurate local geodetic coordinate values; the multifunctional weather monitor is used for comprehensively monitoring the weather conditions of the current environment; and the bridge system is used for ensuring that a high-quality communication link is maintained under the conditions of a complex electromagnetic environment and long-distance transmission. The application ensures the stability and reliability of data communication in field operation environments such as oil drilling, and reduces the cost.

The invention relates to a first visual angle teleoperation concrete construction system based on virtual reality, and belongs to the technical field of robot teleoperation and AR. The system comprises a concrete spreader subsystem, an integrated annular light source target, an electronic compass and a motion control module, and the enhanced teleoperation subsystem is integrated with a first visual angle motion resolving module, a teleoperation handle and AR glasses. Resolving relative poses of a tool coordinate system and a camera coordinate system by fusing annular light source target visual positioning, double electronic compass global absolute orientation data and joint angle data; meanwhile, the AR glasses render a coordinate system and state information by taking the center of the annular light source target as an original point; establishing an orientation alignment relation between coordinate systems of the two electronic compasses based on global absolute orientation data of the two electronic compasses; and mapping the first visual angle operation instruction into a target pose in a base coordinate system, and driving and executing the first visual angle operation instruction. The teleoperation of visual space mapping is realized through the first visual angle resolving module, the AR and the teleoperation, so that the operation safety is guaranteed.

1. Name of the designed product: electronic compass. 2. Use of the designed product: used for measuring the tendency, inclination and strike of geological structure surface. 3. Design points of the designed product: the combination of shape and pattern. 4. Picture or photo best showing the design points: perspective view.

The application discloses a knapsack type wide-band radiation source positioning knapsack and a positioning method thereof, and belongs to the technical field of radio orientation. The knapsack adopts modular design, and a plurality of function modules are integrated through an inner lining plate in the inside of the positioning knapsack main body. A guide head above the positioning knapsack main body is integrated with an Adcock antenna array, a seven-element omnidirectional array and an eight-element directional array, and the three-band antenna arrays operate in cooperation to realize high-sensitivity and high-precision electromagnetic signal receiving and direction finding in a 30MHz-18GHz full-band. Internal signal processing components include a microwave module, a radio frequency transceiver module, a GNSS module, a three-dimensional electronic compass and aluminum heat dissipation teeth, complete signal processing and multi-source data fusion, and output the geographic coordinates of a target radiation source. A power supply component provides overall power supply. The knapsack has the advantages of high mobility, high precision, wide-band adaptability and long endurance, and can be widely applied to radio spectrum monitoring, low-altitude safety guarantee, disaster emergency search and rescue and the like.

The present application relates to a kind of concrete core wall dam borehole three-dimensional micro flow field measuring system and its measuring method, comprising: frequency domain method flow velocity measuring instrument, time difference method flow velocity measuring instrument, depth gauge, electronic compass, take-up device, ground station system and differential antenna. By erecting differential antenna at borehole mouth and receiving GNSS signal, the measurement data of multiple boreholes is obtained in unified geodetic coordinate system;Using take-up device combined with depth gauge, the accurate three-dimensional flow velocity measurement of each depth position in borehole is realized;And through the fusion of time difference method and Doppler method and Kalman filtering processing, the flow velocity measurement precision and resolution are improved.The present application can obtain high-precision, continuous three-dimensional micro flow field flow velocity data in narrow borehole space, provide reliable basis for leakage diagnosis and dam safety evaluation, and is easy to operate, with high engineering application value.

The embodiment of the invention provides a traffic vibration monitoring method, system and equipment. The method comprises the following steps: acquiring a current attitude through an electronic compass system; wherein the current posture comprises a trend, an inclination angle and an inclination direction; acquiring three-axis direction acceleration corresponding to the current attitude through a three-axis acceleration sensing system; determining a target rotation matrix through an operation processing unit based on the trend and the inclination angle; based on the acceleration in the three-axis direction and the target rotation matrix, operation is carried out through an operation processing unit, and target acceleration is determined; determining a time reference based on a global navigation satellite system; based on a time reference, target acceleration is transmitted and stored through a data transmission and storage system, and railway traffic vibration monitoring is achieved. By adopting the scheme, the railway traffic vibration monitoring efficiency can be greatly improved.

This application discloses a calibration method, apparatus, and electronic device for an electronic compass, belonging to the field of electronic equipment technology. The method includes: acquiring the display status of a display screen when the electronic compass is in working condition; wherein the display status includes at least one of screen brightness and pixel RGB grayscale values; determining the calibration value of the electronic compass according to the correspondence between the display status and the calibration value; and calibrating the electronic compass according to the calibration value.

The invention provides a deep rock mass three-dimensional ground stress measuring device and method, and relates to the technical field of geological survey. The method comprises the steps that a stress meter integrated with a distributed optical fiber sensor and a three-dimensional electronic compass is installed at a preset depth in a drill hole; the azimuth angle and the inclination angle of a drill hole are automatically obtained through a three-dimensional electronic compass; collecting reflection wavelength data through a distributed optical fiber sensor before and after the drill hole wall surface stress is completely relieved; the wavelength data and the directional data are transmitted to a data processing unit, and the data processing unit automatically calculates and outputs three-dimensional ground stress tensor and principal stress under a geodetic coordinate system according to the principle that the local wall stress of the drill hole is completely relieved. Therefore, the problems that in a traditional method, due to the fact that manual installation is tedious, attitude measurement depends on external equipment, and single-point measurement is limited, deep rock mass crustal stress measurement is low in efficiency and large in error, and multi-point synchronous in-situ monitoring is difficult to achieve are solved, and full-process automatic, high-precision and extensible three-dimensional crustal stress in-situ measurement is achieved.

The utility model belongs to the technical field of wind measuring equipment, and discloses a laser radar wind measuring device based on electronic compass positioning, which comprises a shell. The water collecting tank is fixedly connected to one side of the outer surface of the shell; the moisture removal mechanism is arranged on one side of the inner cavity of the shell, the moisture removal mechanism comprises moisture removal holes, the moisture removal holes are fixedly connected to one side of the inner cavity of the shell, and mounting plates are fixedly mounted in the moisture removal holes; rainwater can penetrate through the water inlet pipe to enter the fixing shell and push the impeller and the worm to rotate, the worm can drive the worm gear and the moisture removal fan to rotate, moisture entering the shell can be sucked through rotation of the moisture removal fan, and then the sucked moisture can be discharged from the interior of the moisture removal holes. And finally, the rotating impeller drives the dehumidifying fan to exhaust the moisture in the shell, so that an oxidation reaction in the electronic element is avoided, and the measurement precision and stability of the device are improved.