41 results about "Compass" patented technology

The invention relates to a device for reflecting daylight in a fixed direction chosen by the user, despite the sun's movement. The device is distinguished by its ability to be placed in any position and requires no calibration by the user. It positions itself in the Earth's frame of reference using an accelerometer coupled to a solar sighting system, which allows it to determine its position in the Earth's frame of reference and orient the mirror to maintain a constant direction of the reflected beam. The beam is unaffected by any cast shadows, and the system's accuracy is increased compared to compass-based devices. (Shorthand figure: Figure 1)

This invention discloses a three-component microseismic sensor fixing and orientation device and its working method. The three-component microseismic sensor is fixed in a sensor arrangement chamber, with its three components perpendicular to each other. Simultaneously, the directions of the three components are consistent with the calibration directions of the three-axis coordinates on the azimuth detection assembly cover. The arrangement chamber sleeve is placed inside the borehole and tightly connected to the surrounding area. The sensor arrangement chamber is placed inside the arrangement chamber sleeve. An inclination sensor installed inside the sensor arrangement chamber reads the inclination data of the current sensor arrangement chamber. Simultaneously, using the azimuth detection assembly cover, through rotation and leveling, the coordinate cover and compass cover are aligned on the same horizontal plane, and the azimuth data of the compass is read. This data is combined with the inclination data to accurately determine the azimuth and attitude of the three-component microseismic sensor. This ensures the consistency of the placement of multiple microseismic sensors, ultimately providing accurate data support for subsequent microseismic monitoring and processing.

The application discloses a surface layer alignment assembly system for a compass operating unit, which is used for aligning and assembling a surface layer on an aluminum panel of the compass operating unit and comprises a clamping assembly and a positioning driving assembly; the clamping assembly is slidably connected with the positioning driving assembly; the clamping assembly can clamp and hold the aluminum panel to extend horizontally and transversely; the surface layer can be clamped at the lower end of the positioning driving assembly; the positioning driving assembly can be aligned and assembled with the clamping assembly and can align and assemble the surface layer on the aluminum panel; and the application can solve the technical problem that the surface layer of the compass operating unit is manually assembled by an assembler, which can easily cause position deviation during the surface layer assembly.

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.

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.

1. The name of the design product: compass. 2. The use of the design product: the design product is used as a tool for drawing circles or arcs in learning or working. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The invention relates to the technical field of spaceflight, and discloses an astronomical compass attitude drift correction method, device and equipment and a medium, the method comprises the following steps: determining a first measurement error corresponding to an accelerometer in an astronomical compass and a second measurement error corresponding to a sun sensor; determining an initial weight according to the first measurement error and the second measurement error; obtaining observation data of the astronomical compass in a preset time period; determining the attitude drift distance of the astronomical compass according to the initial weight and the observation data; determining whether the attitude drift amount meets a preset correction condition; if the attitude drift amount does not meet the preset correction condition, adjusting the initial weight to obtain an adjusted weight; and recalculating the attitude drift distance based on the adjusted weight until the recalculated attitude drift distance meets a preset correction condition. The correction precision of the astronomical compass can be improved.

The utility model relates to the technical field of compasses, in particular to a pair of compasses capable of automatically storing a central needle, which comprises a fixed foot and a rotating foot, the top ends of the fixed foot and the rotating foot are rotatably connected, the bottom end of the fixed foot is provided with an inner groove, and a needle head assembly is mounted in the inner groove and comprises a pressing rod. A retreating groove is formed in one side of the middle of the pressing rod, an elastic clamping rod is installed at the retreating groove, a lower clamping opening is formed in the lower portion of one side of the inner groove and matched with the elastic clamping rod in a clamped mode, a fixing piece is installed at the position, close to the elastic clamping rod, of the rotating foot, and a driving column is slidably arranged in the middle of the fixing piece. According to the compasses capable of automatically storing the center needle, through ingenious mechanical design, the automatic storage function of the center needle is achieved. After the compasses are used, the needle head assembly can be automatically driven to retract only by simply closing the fixed foot and the rotating foot, manual operation is not needed, and the storage process is greatly simplified.

1. Name of the product in this design: Compass. 2. Purpose of this design: A compass used for drawing. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the key design points: Design 1 3D view. 5. Design 1 is designated as the basic design.

1. The name of the design product: compass. 2. The use of the design product: used as a compass for drawing a circle in mathematics. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1.

This utility model discloses an auxiliary orientation device for the deployment of a three-dimensional seismic sensor, comprising a longitudinal support module, a lateral adjustment module, a parallel linkage adjustment module, and an auxiliary orientation module. The top of the longitudinal support module is threadedly connected to the bottom of the lateral adjustment module. A parallel linkage adjustment module is installed on the upper part of the lateral adjustment module, and the auxiliary orientation module is installed at both ends of the parallel linkage adjustment module. The auxiliary orientation module includes a compass and a pointing plate. A compass is installed at one end of the parallel linkage adjustment module, and a pointing plate parallel to the north-south scale of the compass is installed at the other end. This auxiliary orientation device can effectively reduce the influence of various factors such as field station deployment conditions, the alignment of the north-south equipment with the reference line, the parallelism / coincidence of the reference line with manual visual inspection, and the differences in the technical level of the deployment personnel. This utility model has the characteristics of cost saving, simple use, convenient transportation, and easy maintenance, and can be applied to the deployment of field stations with good application prospects.

The invention discloses a medium wave navigation simulation method based on Hilbert change analog signals, and relates to the field of radio navigation, the method comprises the following steps: S1, setting working signal parameters, and initializing the orientation of a radio compass; s2, the electromagnetic propagation model calculates signal amplitude and phase information received by the omnidirectional antenna and the loop antenna under the current aircraft attitude; s3, carrying out carrier wave reconstruction, and generating an annular modulation signal; s4, superposing the signals; s5, calculating envelope modulation depth, and judging whether the direction of the current loop antenna is the real azimuth angle of the navigation station according to whether the modulation depth approaches zero; s6, if yes, outputting an azimuth angle; and if not, adjusting the pointing angle of the loop antenna, and repeating the steps S2 to S5. According to the method, the fundamental process of direction finding logic is reconstructed from the phase level, so that the simulation system can still keep stable direction finding performance in a complex multi-path environment, and the engineering practicability and environmental adaptability of the method are enhanced.

The application discloses a compass, which comprises a compass base, a first supporting leg and a second supporting leg, the head of the first supporting leg and the head of the second supporting leg are rotationally connected to form a joint end, the joint end is rotationally installed in the compass base, a locking rod is installed on the first supporting leg, the locking rod is provided with a pressing part which is movably connected with the joint end, when the locking rod is in a locking position, the pressing part abuts against the joint end to rotationally lock the head of the first supporting leg and the head of the second supporting leg, when the locking rod is forced to move to an unlocking position, the locking rod drives the pressing part to move to reduce the acting force on the joint end, so that the head of the first supporting leg and the head of the second supporting leg are rotationally unlocked, a user only needs to exert a certain force on the locking rod, and then the unlocking operation can be quickly completed, without the need of complicated adjusting steps, additional parts are reduced, and the structure of the whole compass is more compact.

This utility model relates to the field of compasses and provides a compass with a pointer dial. It includes a compass head, pins and lead feet rotatably mounted on the compass head, connected by a transmission mechanism that allows the pins and lead feet to open and close opposite to each other. Each pin or lead foot has a connecting portion with a first tooth. The compass head has a first rotating shaft with a second tooth, which meshes with each other. The compass head also has a pointer dial with graduations and a first notch. A pointer slide is mounted on the first rotating shaft, with its tip extending through the first notch to the outer surface of the pointer dial. The tip of the pointer slide points to the graduation value of the compass opening. The compass can read the graduations through the pointer dial and pointer slide without the need for a ruler, improving the efficiency of drawing circles and solving the technical problem of low efficiency in drawing circles with a compass.

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.

A method for determining the locations of sensor devices in a sensor array in a structure is disclosed. The method may include determining, by a mobile communication device, a compass direction from a first sensor device to a base station and an elevation angle from the first sensor device to the base station. A distance between the first sensor device and the base station may be determined. Based at least on the compass direction from the first sensor device to the base station, the elevation angle from the first sensor device to the base station, and the distance between the first sensor device and the base station, a location of the first sensor device may be determined. The location of the first sensor device may be caused to be stored with an identifier of the first sensor device.

1. The name of the design product: compass. 2. The use of the design product: the design product is used as a tool for drawing circles or arcs in learning or working. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

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 invention discloses a multifunctional measuring scale rack for forestry quadrat investigation, and relates to the technical field of measuring scales, and the multifunctional measuring scale rack comprises a tripod which comprises a supporting disc and three groups of foot stands rotatably installed on the bottom surface of the supporting disc; marking rods; the measuring assembly comprises a compass fixedly mounted on the upper surface of the supporting disc, a central groove formed in the central axis of the upper surface of the compass, a gradienter, a compass and azimuth scales which are arranged on the surface of the central groove, four groups of measuring tapes mounted on the surface of the compass in a circumferential array manner, and four groups of laser emission heads mounted on the peripheral side of the compass in a circumferential array manner; compass scales are arranged on the surface of the compass; according to the measuring scale frame, the tripod, the marker post and the measuring assembly are arranged, so that the measuring scale frame can be flexibly adapted to various complex field terrains, a compass provides an accurate reference orientation, directional indication of a laser emission head is matched, the layout of four sets of measuring tapes is matched, the whole quadrat laying process is independently completed by a single person, cooperation of multiple persons is not needed, manpower dependence is greatly reduced, and working efficiency is improved. And the quadrat layout efficiency is 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.

This invention discloses a device and method for determining the stratigraphic attitude in an exploration well. A circular track is circumferentially arranged on the inner wall of the housing. The orientation sensing component includes a compass located below the housing and a first rotating and moving mechanism connected to the compass. The first rotating and moving mechanism is mounted on the circular track and can move along the track, driving the compass to move circumferentially along the inner wall of the exploration well, ensuring that the compass dial is always parallel to the inner wall at the corresponding position. The image acquisition component includes a camera module located below the housing and a second rotating and moving mechanism connected to the camera module. The second rotating and moving mechanism is mounted on the circular track and can move along the track, driving the camera module to move circumferentially along the inner wall of the exploration well, ensuring that the camera module is always perpendicular to the compass dial. This invention provides a complete and accurate description of stratigraphic attitude, eliminating the need for geotechnical technicians to personally enter the exploration well for observation.

The invention discloses a controller of a vertical shaft rotating sun tracking frame. The controller comprises a main control chip, a satellite navigation module, an electronic compass module, a magnetic declination calibration module, a communication module, a motor control module, a motor and a power management module. The main control chip calculates true sun time according to sun tracking frame position information and clock information received from the satellite navigation module; the true sun start-stop time and the start-stop azimuth angle of the sun-tracking frame are determined according to the true sun start-stop time and the start-stop azimuth angle of the sun from east to west, the rotation angular velocity of the sun-tracking frame is determined according to the rotation angular velocity of the sun, and the motor controls and manages the motor to rotate the sun-tracking frame according to the angular velocity; calibrating the sun tracking frame azimuth angle output by the electronic compass module and the magnetic declination obtained by the communication module from the server; and the main control chip takes the sun-tracking rack azimuth angle of 12: 00 in true sun time as the positive south, the time from the last half of sun tracking to the extremely west is completed by taking the sun-tracking rack azimuth angle as the starting point, then the sun-tracking rack is continuously reversed to the positive south for azimuth angle stroke calibration, and then the sun-tracking rack is continuously reversed according to the stroke time to the extremely east.

1. Name of the product in this design: Compass (jf057). 2. Purpose of this design: For use with compasses. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

The invention relates to a three-axis rotating inertial navigation system rotating shaft inclination angle compensation method which comprises the following steps: fixing a rotating inertial navigation system and an optical compass, keeping the relative position of the rotating inertial navigation system and the optical compass unchanged, and respectively accessing a second pulse signal 1PPS to the rotating inertial navigation system and the optical compass through a second pulse generator, using a data recording device to record synchronous navigation information of the rotary inertial navigation system and the optical compass; respectively calibrating an inner shaft rotating shaft inclination angle sum of the rotary inertial navigation system, a middle shaft rotating shaft inclination angle sum of the rotary inertial navigation system and an outer shaft rotating shaft inclination angle sum of the rotary inertial navigation system; calculating the attitude matrix of the rotary inertial navigation system, and compensating the inclination angle of the rotary shaft. According to the method, the inclination angle of the rotating shaft of the three-axis rotating inertial navigation system in the mooring state can be accurately calibrated, the calculated attitude fluctuation error of the rotating inertial navigation system is reduced, and the method has important significance in improving the maintainability of the rotating inertial navigation system.

The application provides a 10-meter buoy current correction method based on an external GNSS, a medium and a system, and belongs to the technical field of current correction.The application is characterized in that a heading angle is used to replace a built-in magnetic compass heading in real time;then a heading correction amount and a current velocity vector correction amount of each depth layer are jointly optimized by an artificial intelligence multi-task joint estimation correction model, loss weights are dynamically adjusted in combination with a channel credibility evaluation function, and a weak sensor link in terms of credibility is isolated through a fault isolation algorithm based on the maximum flow and minimum cut theorem of a flow graph;finally, sea current profile data with a data quality grade identifier are output through direction consistency verification and a flow velocity direction consistency index adaptive adjustment. Thus, the technical problem that, when a buoy integrates an acoustic Doppler current profiler, magnetic interference causes heading angle distortion and further causes a serious deviation of a sea current profile flow direction, and existing means cannot continuously and reliably correct the heading angle in complex sea conditions is solved.

1. Name of the designed product: magnetic compass. 2. Use of the designed product: for ship navigation instrument. 3. Design points of the designed product: in shape. 4. Picture or photo that best shows the design points: perspective view.

1. Name of the designed product: compass (SP011-2 round 2.0). 2. Use of the designed product: for indicating direction. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: perspective view.

1. Name of the product in this design: Compass. 2. Purpose of this design: For drawing circles or arcs during study or work. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The present application relates to the technical field of magnetic navigation, in particular to a dual-mode neuromorphic magnetic navigation device and a navigation method, which mainly solves the technical problem that the existing magnetic navigation device has low sensitivity, slow response and is difficult to balance long-distance fast orientation and short-distance high-precision positioning. The device comprises a magnetic sensing substrate, a plurality of array-distributed magnetic sensing pixel modules, an array microwave antenna and a microwave source; the magnetic sensing substrate is internally provided with a neural network architecture circuit and a signal conditioning circuit; each magnetic sensing pixel module comprises a regulation and control substrate and at least three fluorescent sensing units, and each fluorescent sensing unit comprises an NV color center, a filter, a photodetector and a laser. The application also discloses a navigation method based on the above device. The application adopts a magnetic compass and a magnetic map dual-mode to work cooperatively, realizes the continuous transition of long-distance rough navigation and short-distance accurate navigation, and has the beneficial effects of high sensitivity, fast response speed and low power consumption.

1. Name of the designed product: compass. 2. Use of the designed product: for measuring direction. 3. Design points of the designed product: in shape. 4. Picture or photo best showing the design points: perspective view 1.