142results about "Compasses" patented technology

The invention belongs to the field of avionics system design, and particularly relates to a large amphibious aircraft radio compass deviation calibration method, which comprises the following steps of: completing installation, calibration and power-on inspection according to the size of an aircraft and part of airborne equipment, and calibrating a site environment state, coordinates of a ground omnidirectional beacon station and the like. The invention provides a compass deviation calibration method for the radio compass of the aircraft, so that the radio compass compass deviation calibration of the aircraft can be more efficiently completed in a general assembly base, the cost is reduced, and the production efficiency is improved.

This utility model provides a multifunctional boat-shaped compass box, comprising: a hull and a magnet; wherein the hull is placed horizontally, and the magnet is disposed inside the hull; the multifunctional boat-shaped compass box is one or more of the following: a compass box, a threaded compass box, a floating compass box, a pin-type compass box, and a magnetic powder compass box. This multifunctional boat-shaped compass box, by equipping it with a neodymium iron boron perforated plate, a bar magnet, a razor blade, magnetic powder, etc., can be made into compasses of various shapes and types, allowing for various games based on compass characteristics, increasing the fun of teaching and improving teaching efficiency.

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 invention belongs to the technical field of geological mineral exploration tools, and particularly relates to a geological compass for geological mineral exploration, which comprises a compass and further comprises a fixed block, the fixed block is fixedly connected to the bottom surface of the compass, a movable groove communicated with the outside is formed in the fixed block, and a movable block is movably connected in the movable groove; the two limiting grooves are formed in the movable block and communicate with the movable groove, and first extrusion blocks are slidably connected into the two limiting grooves correspondingly; the first sliding grooves are formed in the movable blocks and communicate with the two limiting grooves, extrusion rods are slidably connected into the first sliding grooves, and the top ends of the extrusion rods make contact with the ends, close to each other, of the two first extrusion blocks. The compass can still be normally used on the uneven ground, the problem that the pointing reading of the magnetic needle is deviated is prevented, and the accuracy of data measured by the compass is improved.

This disclosure describes a method for calibrating a magnetic sensor of a client device. The method may include receiving a set of magnetic field measurements, each magnetic field measurement including the device position, the orientation of the client device, and the observed magnetic field vector measured by the magnetic sensor. The method may include calculating a device correction vector for the client device based on the set of magnetic field measurements. For each magnetic field measurement, the method includes determining the world magnetic field vector at the device position of the magnetic field measurement, calculating the expected measured magnetic field vector at the device position, accessing an estimated device correction vector for the client device, calculating the expected adjusted vector for the client device, comparing the observed magnetic field vector associated with the magnetic field measurement with the expected adjusted vector, and calculating a device correction vector based on the comparison.

The present disclosure describes a method for calibrating a magnetic sensor of a client device. The method may include receiving a set of magnetic field measurements, each of which includes a device location, an orientation of the client device, and an observed magnetic field vector measured by the magnetic sensor. The method may include computing a device correction vector for the client device based on the set of magnetic field measurements. For each magnetic field measurement, the method includes determining a world magnetic field vector at the device location of the magnetic field measurement, computing an expected measured magnetic field vector at the device location, accessing an estimated device correction vector for the client device, computing an expected adjusted vector for the client device, comparing the observed magnetic field vector associated with the magnetic field measurement and the expected adjusted vector, and computing the device correction vector based on the comparison.

The application discloses a kind of magnetic compass's calibration device and method, the device includes cylindrical rotating table, azimuth circle and azimuth marker post assembly, the cylindrical rotating table is used to fix the compass bowl of magnetic compass at its rotation center, the azimuth circle is coaxially fixed on the upper surface of the compass bowl, and the azimuth marker post assembly is axially arranged on the peripheral circumference concentric with the cylindrical rotating table;The cylindrical rotating table is suitable for rotating to drive the compass bowl and the azimuth circle to rotate synchronously, and the pointing accuracy of the magnetic compass is calibrated by aligning the azimuth circle to the azimuth marker post assembly.The application adopts multi-azimuth calibration method, which can greatly improve the installation accuracy of the scale disc and the pointing magnet, thereby improving the pointing accuracy of the magnetic compass.

An electronic device [100] generates a summary map [265] of a scene based on data representative of objects having a high utility [245] for identifying the scene when estimating a current pose [275] of the electronic device and localizes the estimated current pose with respect to the summary map. The electronic device identifies scenes based on groups of objects [215] appearing together in consistent configurations over time, and identifies utility weights for objects appearing in scenes, wherein the utility weights indicate a predicted likelihood that the corresponding object will be persistently identifiable by the electronic device in the environment over time and are based at least in part on verification by one or more mobile devices. The electronic device generates a summary map of each scene based on data representative of objects having utility weights above a threshold.

The invention provides a magnetic azimuth angle measurement method and device, electronic equipment and a storage medium, and relates to the technical field of measurement. The method comprises the following steps: for each magnetometer in a plurality of magnetometers, acquiring magnetic field intensity data of each sample point in a current environment based on the magnetometer so as to calibrate the magnetometer, and calculating a fluctuation value of the magnetic field intensity data corresponding to the magnetometer; wherein the fluctuation value is used for representing the dispersion degree of the magnetic field intensity data among the sample points; according to the fluctuation value corresponding to each magnetometer in the plurality of magnetometers, determining a target magnetometer in the plurality of magnetometers; and measuring a magnetic azimuth angle of the electronic equipment based on the target magnetometer. According to the embodiment of the invention, the magnetic field interference degree of the magnetometers can be measured through the fluctuation value, and the magnetometer with the minimum magnetic field interference is selected from the plurality of magnetometers as the target magnetometer, so that the magnetic azimuth angle of the electronic equipment can be measured, and the measurement accuracy of the magnetic azimuth angle is improved.

This utility model discloses a multifunctional outdoor device, including a housing, a radiation detection device, a power supply device, and a circuit board installed on the front side inside the housing. The circuit board integrates a main control chip. The power supply device includes a solar panel, a hand-cranked generator assembly, and a battery assembly installed inside the housing. The radiation detection device includes a cover tube installed inside the housing and a cover tube detection plate located behind the cover tube. The solar panel includes a solar panel installed on the upper side of the housing and a charging control circuit integrated on the circuit board. The hand-cranked generator assembly includes a rotating component rotatably installed on the rear side of the housing, an operating handle connected to the rotating component, and a hand-cranked generator installed inside the housing. The rotation input part of the hand-cranked generator is installed on the rotating component. The battery assembly includes a lithium battery pack, a battery controller, and a charging / discharging interface. Thus, this utility model offers multiple functions and reduces the user's carrying burden.

Display assemblies with monitoring features, along with related systems and methods, are disclosed. The display assembly includes a display unit having an electronic display movably mounted to a frame. A controller includes an orientation detection device in connection with a processor. The controller receives data from the orientation detection device and determines, from time to time, a state of the display assembly based, at least in part, on data received from the orientation detection device.

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 utility model discloses a drawing model ruler for mountain geology surveying and mapping engineering, which belongs to the technical field of surveying and mapping engineering equipment and comprises a folding model ruler and a ruler shell, one end of the folding model ruler is provided with a disc-shaped front clamping plate and a disc-shaped rear clamping plate, and a plurality of ruler strips are connected between the front clamping plate and the rear clamping plate through a rotating part of a rotating bearing seat. The non-rotating part of the rotating bearing seat is embedded and mounted on the surfaces of the front clamping plate and the rear clamping plate, the ruler strips comprise ruler strips with legends of different shapes machined on the surfaces and measuring ruler strips, and a compass and a liquid level gauge are embedded and mounted on the surfaces of the measuring ruler strips. A semicircular angle ruler is fixedly welded to the upper end of the front side face of the front clamping plate, a finger lifting notch is formed in the inner side of the semicircular angle ruler, and reset magnetic attraction strips are embedded into the outer ends of the surfaces of the ruler strips. The drawing model ruler is of a folding structure, small in size, convenient to carry outdoors, good in durability, long in service life and good in economic benefit.

The utility model discloses multifunctional forest compass equipment, which relates to the technical field of compasses and comprises a compass main body, a compass cover is rotatably connected onto the compass main body in a damping manner, a fixing groove is formed in the middle of the top surface of the compass cover, a photovoltaic panel is embedded in the fixing groove, and a storage battery is arranged in the compass cover. The photovoltaic panel can convert solar energy into electric energy to be stored in the storage battery, an illumination groove is formed in the compass body, a plurality of LED illumination lamps are evenly distributed along the inner wall of the illumination groove, the storage battery can provide power for the LED illumination lamps, a protection assembly is further arranged on the top face of the compass cover, and the compass cover is rotated by a certain angle and kept. When the compass is used at night, the LED illuminating lamp is turned on through the control switch, so that the LED illuminating lamp illuminates the dial plate of the compass main body, and by utilizing the structure, an emergency power supply can be obtained by solar power generation in emergency, so that the functionality and the practicability of the compass are improved.

The utility model belongs to the technical field of calibration, and discloses a calibration device for a magnetic compass, which comprises a calibration mechanism comprising a rotating platform for driving the magnetic compass to rotate horizontally, a magnet assembly, and four groups of upright guide rails which are respectively positioned on the periphery of the rotating platform, a magnet block capable of sliding along the vertical direction of the vertical guide rail is arranged on the vertical guide rail; compared with the prior art, the magnetic compass has the following beneficial effects that through the design of the magnet assembly, when the magnetic compass rotates on the rotating platform, the height is adjusted by enabling the peripheral magnet blocks to slide up and down along the vertical guide rail, so that the height of the magnetic compass can be adjusted according to the autodyne condition when the magnetic compass rotates to different directions on the rotating platform; and the magnetic field action intensity between the magnet block and the magnetic compass is adjusted. Therefore, the autodyne of the magnetic compass can be corrected in a targeted manner, the calibration precision is improved, the operation of the sliding adjustment mode is more convenient, the time and labor cost required by calibration are reduced, and the working efficiency is improved.

The invention provides field geological survey equipment integrating a multi-source function, the field geological survey equipment comprises a lower end connecting rod, an upper end connecting rod, a soil sampler, a handle jack, a connection locking mechanism, a locking block, a transverse locking mechanism, a compass and a laser range finder, the lower surface of the lower end connecting rod is provided with the soil sampler, and the upper surface of the lower end connecting rod is provided with the connection locking mechanism; the upper surface of the upper end connecting rod is provided with a locking block, the circumferential surface of the lower end connecting rod and the circumferential surface of the upper end connecting rod are each provided with a handle inserting hole, and through the design, the problems that when an original device is carried, large space is occupied, other tools cannot be assembled and used in a centralized mode, and consequently the other tools are troublesome to use at the same time are solved. Through mutual cooperation of the connection locking mechanism and the transverse locking mechanism, rapid disassembly and assembly of the soil sampler are achieved, the carrying size can be reduced, meanwhile, the installation speed can be increased, and the compass and the laser range finder can be more conveniently combined for use.

A current sensor for detecting a target current using a shunt resistor (4) includes a resistance correction circuit (17, 63) and a power supply circuit (10). The resistance correction circuit (17, 63) includes: a correction resistor (5); a signal application unit (6, 62) for applying an AC signal to a series circuit of the shunt resistor and the correction resistor; a voltage detection unit (20) for detecting the terminal voltages of the shunt resistor and the correction resistor; and a correction unit (16) for calculating the resistance value of the shunt resistor and correcting the detection resistance value. The power supply circuit (10) includes: a first power generation unit (18) for generating a first power supply for the signal application unit from an externally supplied input power supply; and a second power generation unit (19) for generating a second power supply for the voltage detection unit.

In one embodiment, a method includes collecting, by a magnetic navigation device, magnetic measurements of a particular geographical region in accordance with a position and trajectory of the magnetic navigation device; accessing a global navigation satellite system (GNSS) signal status and a network connection status on the magnetic navigation device; determining an operational mode for the magnetic navigation device based on the GNSS signal status and the network connection status; determining whether to transmit the magnetic measurements to a server or store the magnetic measurements locally on the magnetic navigation device based on the operational mode; and performing navigation or localization operations using the operational mode.

A system for providing an element on a UE including foldable portions, is provided. The system includes: a processor configured to: identify an angular orientation between first and second foldable portions; detect the element of an application running on the first foldable portion; identify, based on the element being detected as running on the first foldable portion, whether the first foldable portion includes sensors; determine whether the element is displayed on the first foldable portion, based on identifying the first foldable portion does not have the sensors; fuse, based on determining the first foldable portion does not have the sensors, data from the sensors to data corresponding to the element of the application; and control display of the element based on the fused data to provide a correct format of the at least one element on the first foldable portion.

The invention relates to the technical field of spatial calibration, and discloses a calibration device and method for spatial calibration of a magnetic compass of an airborne display, the calibration device and method for rapid spatial calibration of the magnetic compass of the airborne display only need to fix and dismount the airborne display once in the whole calibration process, and the calibration efficiency is greatly improved. Spatial calibration can be quickly performed on the magnetic compass in the product, the spatial calibration precision and efficiency are improved, the calibrated magnetic compass can generate a more accurate course, and the precision of the output attitude of the product is ensured.

The application discloses a kind of based on wave motor's chip-based north seeker, including comprehensive control circuit board, wave motor type rotating platform based on MEMS chip, MEMS gyroscope assembly bin, upper limit cover plate, display module interface and three-section shell;Wherein comprehensive control circuit board completes whole rotation modulation north-seeking control and true north direction solution;Rotating platform completes multi-angle step rotation or continuous rotation under the operation of comprehensive control circuit, drives the rotation of MEMS gyroscope assembly bin and upper limit cover plate installed on rotating platform, realizes the rotation of gyroscope sensitive axis;Display module interface is realized north-seeking state and result display by external display.This application is based on the chip wave motor type rotating platform of flattening, the volume and mass of whole north seeker are greatly reduced, and the energy consumption of wave motor is low, the energy consumption of whole system is reduced, and based on comprehensive control circuit, the constant error compensation effect of rotating modulation technology to gyroscope is ensured, and the north-seeking precision is improved.

The utility model relates to the technical field of geological exploration equipment, in particular to a geological survey compass, which solves the technical problems that the operation is inconvenient during locking, the operation is difficult when a driving handle is shifted, a compass is easy to slip to cause damage, and small tools are easy to lose, and comprises a measurement box, an upper cover is mounted on the measurement box in a hinged manner, and a measurement device is mounted in the measurement box. An ejector pin is mounted above the measuring device, a magnetic needle is mounted on the ejector pin, a locking device is mounted below the magnetic needle, the locking device comprises a lever, one end of the lever is slidably mounted on the ejector pin, a pressing plate is integrally fixed to the other end of the lever, a through hole is formed in the pressing plate, a mounting groove located in the inner wall of the measuring box is formed outside the pressing plate, and a transverse shaft is fixedly mounted in the mounting groove; according to the utility model, the locking device is additionally arranged, so that the pointer can be locked only by pressing a locking button, an operator does not need to continuously press the pointer, and the technical problem that the pointer is inconvenient to operate during use is solved.

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.

An azimuth measurement device (1) comprises a first angular velocity sensor (11) that has a first detection axis (11D) extending along the horizontal direction and detects a first angular velocity with the first detection axis (11D) as the center of rotation, a rotation mechanism (13) that has a rotation axis (13R) extending along the vertical direction and rotates the first detection axis (11D) of the first angular velocity sensor (11) with a rotation axis (13R) as the center of rotation, and a second angular velocity sensor (12) that is used to correct the rotation angle (alpha) of the first detection axis (11D) in the rotation mechanism (13), the second angular velocity sensor (12) having a second detection axis (12D) extending along the vertical direction and detecting a second angular velocity having the second detection axis (12D) as the center of rotation.

The invention relates to a method for determining an azimuth angle (α) between a sensitive axis (z) of a quantum-based NMR gyroscope (100) and a geographic north direction (N), the method comprising aligning the sensitive axis (z) of the quantum-based NMR gyroscope (100) in a first measurement direction, which in particular runs substantially parallel to an Earth's surface, and determining a first Earth rotation (ω). R ), aligning the sensitive axis (z) of the quantum-based NMR gyroscope (100) in at least one second measurement direction, which in particular is essentially parallel to the Earth's surface and which differs from the first measurement direction, and determining at least one second Earth rotation, and determining the azimuth angle (α) from the first Earth rotation (ω) R ) and at least one second Earth rotation. The invention further relates to a gyrocompass (10).

The present disclosure relates to a sensor device for monitoring an environment of the sensor device, comprising: a housing; one or more sensors for detecting sensor data relating to the environment; a communication interface for wirelessly communicating sensor information based on sensor data; and a control device for controlling the sensor device; wherein the sensor device has an energy storage device for operating the sensor device, the sensor device has a mounting portion on the housing, and wherein the mounting portion is designed to reversibly arrange the sensor device securely on the ground at, on and / or in an external foundation.

The utility model discloses an intelligent seeding robot, and relates to the technical field of seeding. The robot adopts the autorotation driving assembly and the two-stage connecting rod mechanism, the first steering engine drives the first steering turntable to rotate, and the connecting rod assembly drives the second steering turntable to realize four-wheel in-situ steering, so that the technical bottlenecks of low steering precision and large turning radius of the existing seeding machine are overcome. The robot is based on a vehicle body frame, integrates an advancing mechanism, a multi-path seed metering mechanism, a seeding mechanism, a counting module, an identification module, a star flash SLE module, a navigation module, a control module and a remote controller, has real-time detection and feedback functions, and can dynamically adjust steering and seeding parameters according to an operation state, so that the seeding quality and the operation efficiency are remarkably improved.

The invention discloses a strong pumping bilateral resonance modulation-demodulation magnetic sensitivity enhancement method of a quantum magnetic compass. The method comprises the following steps: constructing a quantum magnetic compass platform comprising a sensing unit and external optical and microelectronic devices; quantum state enhanced reading containing magnetic vector information is realized by using a pumping enhancement mode; a standard diamond is used, the thermal conductivity and the light transmission of the diamond are utilized, the initialization of a quantum state is realized by using near-saturation external pump light, the line width is narrowed, and the magnetic measurement sensitivity is improved; noise in the environment is filtered out in a modulation and demodulation mode, and high-robustness extraction of quantum information is achieved. By enhancing the laser pumping power, the emission speed of the solid-state quantum color center ensemble fluorescence photons is increased, the full width at half maximum of a magnetic resonance curve is compressed, and the measuring capacity of the solid-state quantum color center to a magnetic field is improved; accurate measurement of external magnetic field signals through the solid quantum color center in the diamond is realized.

The application relates to a measurement precision correction method for a digital geological compass. The method comprises the following steps: determining the magnetic field stability of a target position according to the difference between the total magnetic field strengths in a first interval; determining the magnetic field interference coefficient of each moment according to the difference between the total magnetic field strength of each moment and the total magnetic field strength of a target moment; determining the point source model fitting degree of a previous moment according to the difference between the magnetic field interference coefficients of each adjacent moment and the time length interval between each adjacent moment and an initial moment; determining a target time length according to the magnetic field interference coefficients in a second interval and the time length interval between each moment and the initial moment, and correcting the magnetic field data of each axis of the compass according to the difference between the magnetic field data of each axis of the target moment and the magnetic field data of the axis in the first interval and the target time length; and performing azimuth calibration on the compass according to the corrected magnetic field data of each axis and the latitude and longitude of the target position. The method can improve the accuracy of geological measurement.