100 results about "Distance measuring equipment" patented technology

Tracked distance measuring device, systems, and methods for determining and mapping point of interest for use in utility locating operations and other mapping applications are disclosed. A tracked distance measuring device embodiment includes simultaneously triggered rangefinder and positioning elements to measure a distance and determine location and pose, optionally in conjunction with a utility locator.

The invention discloses an error compensation method based on laser distance measuring equipment and related equipment, and relates to the technical field of data processing, and the method comprises the steps: responding to an error compensation instruction, determining target equipment to be subjected to error compensation, determining the distance measuring range of the target equipment and preset distance measuring precision, and based on the distance measurement range, the preset distance measurement precision and a preset correction interval division strategy, dividing the distance measurement range to obtain a plurality of target correction intervals, determining an error compensation value corresponding to each target correction interval, and based on the error compensation values, performing error compensation on the target equipment. The correction intervals are divided according to the ranging distance and the ranging precision, the corresponding error compensation values are set according to the different correction intervals, the compensation effect is optimized, and the overall ranging precision is improved.

The utility model discloses an inter-mountain ranging auxiliary device, which relates to the technical field of geological exploration and comprises a bottom plate and a clamping plate, a partition plate is fixedly connected outside a vertical plate, scale plates are fixedly connected to two sides of the partition plate, a fixing plate is fixedly connected outside the vertical plate, and a driving motor is fixedly connected outside the fixing plate. A rotating rod is fixedly connected to one side of the driving motor, a rotating plate is fixedly connected to the exterior of the rotating rod, a mounting box is fixedly connected to the tail end of the rotating plate, a reading groove is formed in the exterior of the rotating plate, inclined planes are symmetrically formed in the exteriors of the two clamping plates, and a clamping mechanism is mounted between the exteriors of the clamping plates and the inner side of the mounting box; and a quick release mechanism is mounted outside the mounting box. According to the device, rapid and stable installation and convenient disassembly of the distance measuring equipment are achieved through the design of the spring and the slope, the distance between two points in a mountain land is accurately calculated through angle data of the rotating plate and direct reading of the distance measuring equipment, and a safe and efficient distance measuring solution is provided for geological exploration.

The invention discloses a static leveling instrument calibration device and method, a storage medium and a controller. The static leveling instrument calibration device comprises a liquid level communication tank; a first reference liquid level tank; a second reference liquid level tank; a liquid supply metering module; the first movable distance measuring module comprises a first moving assembly and a first laser distance measuring instrument; the second movable distance measuring module comprises a second moving assembly and a second laser distance measuring instrument; the controller is used for controlling the liquid supply metering module to perform quantitative liquid injection for multiple times, and according to a first current liquid level value measured by the laser range finder after each time of liquid injection, a second current liquid level value measured by the second laser range finder and an output value generated by each to-be-calibrated static force level gauge, calibration parameters of each to-be-calibrated static force level gauge are determined; and when the measuring range of the to-be-calibrated hydrostatic level gauge is greater than that of the first laser range finder, controlling the moving assembly to adjust the measuring range of the laser range finder according to the current liquid level value, and controlling the second moving assembly to adjust the measuring range of the second laser range finder according to the second current liquid level value.

The present invention comprises: a plurality of light-emitting elements; a plurality of light receiving elements; and a determination means for determining, as a time of flight of the signal light for distance measurement, a time from emission of light from any of the plurality of light-emitting elements to reception of reflected light of the emitted signal light from any of the plurality of light-receiving elements. Among the plurality of light-receiving elements, a first light-receiving element receives reflected light and ambient light, the reflected light being signal light that has been emitted by a first light-emitting element among the plurality of light-emitting elements and has been reflected by the subject, each of the plurality of light-receiving elements including a plurality of sub-light-receiving elements, and a determination section obtaining a reference value from a measurement result of the time of flight measured using the detection signal of a first sub-light-receiving element, the first sub-light-receiving element being a portion of the first light-receiving element, the reference value indicating a measurement result of the ambient light that has been measured for each light-receiving element, and determining a time of flight of signal light for ranging in relation to the subject by using both: a reference value; and a measurement result of the time of flight measured using a detection signal of a second sub-light-receiving element that is included in the first light-receiving element and is different from the first sub-light-receiving element.

1. Name of the product in this design: Engineering Distance Meter. 2. Purpose of this design: for distance measurement at engineering construction sites. 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 utility model discloses a geological radar antenna support for advanced detection of a coal mine driving face, which comprises a transmitting antenna support, a receiving antenna support, a horizontal support rod horizontally arranged between the transmitting antenna support and the receiving antenna support, and two ends of the horizontal support rod are fixedly connected with the transmitting antenna support and the receiving antenna support respectively; the distance measuring instrument is mounted in the middle of the horizontal supporting rod, is equal to the geological radar transmitting antenna and the geological radar receiving antenna in distance and is used for measuring the distance from the central positions of the geological radar transmitting antenna and the geological radar receiving antenna to the side wall of the roadway; further, the geologic structure under the roadway ground can be conveniently measured for multiple times at equal intervals along the section of the roadway; according to the utility model, the moving distance of the transmitting antenna support and the receiving antenna support can be measured in real time through the laser range finders, measuring point positions do not need to be arranged in advance during underground detection, and the distance between the midpoints of the transmitting antenna support and the receiving antenna support and the side wall of a roadway can be directly measured in real time.

The invention discloses a K-band inter-satellite range finder data quality assessment method and system, and relates to the technical field of data quality assessment, and the method comprises the steps: obtaining a K-band radio frequency phase noise sequence and multispectral visual data of an inter-satellite range finder; generating a position coding feature vector and a direction coding feature vector according to the radio frequency phase noise sequence and the multispectral visual data, and fusing the position coding feature vector and the direction coding feature vector to generate an interference dynamic distribution diagram; constructing a three-dimensional convolution kernel, inputting the interference dynamic distribution map into the three-dimensional convolution kernel, and generating a K-band interference intensity prediction sequence by constraining the three-dimensional convolution kernel; calculating a data reliability evaluation index according to the K-band interference intensity prediction sequence, and marking a reliability label; and generating a control instruction based on the reliability label, executing the control instruction and recording an evaluation report. According to the method, the position coding feature vector and the direction coding feature vector are generated through coding, and the problem of multi-source data collaborative correction missing is solved.

An aerial drone (1) comprising a fixed structure (2), a motorized drone propulsion and orientation assembly (3), an optronic rangefinder (6), and an electronic guidance unit (5) connected to the motorized assembly (3) and the optronic rangefinder (6) to control the motorized assembly (3) based on signals emitted by the optronic rangefinder (6). The device (6) includes an optical system (6.1) and an optronic sensor (6.2) that are fixed in orientation relative to the fixed structure (2). The electronic guidance unit (5) is arranged to control the motorized assembly (3) to move the drone over an exploration area by having the optronic sensor (6.2) scan the exploration area until it detects electromagnetic radiation emitted by a target, and then to guide the drone to the target using rangefinders. (Figure from the summary: Fig. 1)

The application is suitable for the field of intelligent traffic technology, and provides a positioning method, device and system based on a laser radar, a vehicle and a computer readable storage medium. The method comprises the following steps: obtaining coordinate values of at least two targets arranged on a second working vehicle, wherein the coordinate values of each target are the same as the coordinate values of a prism arranged on the target, and the coordinate values of the prism are obtained by tracking the prism with a total station; obtaining a first distance between a laser radar and the target, wherein the laser radar is arranged on a first working vehicle; and determining first pose information of the first working vehicle according to the first distance of at least two targets and the coordinate values of the targets. The application does not depend on GPS signals, and does not need to configure mobile base stations, laser range finders, infrared thermometers and electronic fences and other equipment, and does not need to refer to road ditches or road edges, and has high flexibility. The positioning accuracy of the automatic total station and the laser radar is high.

This invention discloses a non-contact attitude measurement device and method for towed model boats. The device includes a towing frame mounted above the test model, a towing bracket mounted on the towing frame, and the test model clamped at the lower end of the towing bracket. A laser trigger is mounted on the side wall of the test pool. Laser rangefinders are mounted on the bow and stern of the test model, and a light shield is mounted on the towing frame. A navigation board and an inclination sensor are mounted on the test model. The laser rangefinder is fixed on a rotating shaft and connected to a servo motor. The servo motor, inclination sensor, and laser trigger are respectively connected to a controller. When the test model passes the laser trigger, the trigger signal is transmitted to the controller via first and second wireless communication modules. The controller, combined with the inclination data of the test model collected by the inclination sensor, adjusts the angle of the laser rangefinder by rotating the servo motor. This solution can calculate the heave and sag of the model based on the change in distance measured by the laser rangefinder, and the measurement is convenient, accurate, reliable, and highly automated.

The invention relates to a radio wave distance measurement technology, in particular to a radio frequency distance measurement device capable of crossing obstacles and a distance measurement method, and the device comprises a reference plane and a lifting foundation which can alternately move up and down along the height direction of the reference plane; a plurality of trigger blocks are fixedly arranged on the reference plane in the height direction of the reference plane, the trigger blocks are arranged side by side to form a column of contact sets, the contact sets are located on one side of the lifting foundation, a swing arm is arranged on the lifting foundation in a deflection mode, and a radio frequency range finder is fixedly installed on the swing arm; the lifting base is further provided with a transposition mechanism used for being matched with the contact set, and the transposition mechanism is connected with the swing arm. According to the invention, a common programmable time sequence control system is abandoned, and a physical structure is adopted to control the plane orientation of the radio frequency range finder, so that the environmental interference noise of a wireless radio frequency electric wave signal in the propagation process is reduced, and the probability of data distortion and decoding errors is reduced.

1. Name of the product in this design: Rangefinder and its main body. 2. Purpose of the products of this design: Products of Design 1 and Design 2 are used for measuring terrain and distance, and products of Design 3 are used for measuring terrain and distance in whole and in part. 3. The key design feature of this product is its shape. 4. The picture or photo that best illustrates the key design points: Design 1 3D diagram 1. 5. Design 1 is designated as the basic design. 6. Other situations requiring explanation: Design 3 requests protection for the partial appearance design of the product. The part indicated by the dotted line in the figure of Design 3 is the part that does not require protection.

The utility model relates to the technical field of mine gob-side entry retaining equipment, in particular to a gob-side entry retaining self-moving concrete pump which comprises a crawler chassis, two sets of crawler frames are arranged on the two sides of the crawler chassis respectively, and two sets of driving wheels driven by crawler motors are arranged on the two sets of crawler frames respectively. The pumping assembly is connected above the crawler chassis, and the pumping assembly is provided with a liftable hopper at the tail part of the crawler chassis; the hydraulic assembly comprises a hydraulic oil tank, an explosion-proof motor and a hydraulic pump set which is driven by the explosion-proof motor to provide power for action parts; according to the device, the function of automatic walking or automatic pumping control can be achieved by remotely sending an instruction through the remote control transmitter, the reliability of underground walking and operation is guaranteed through cooperation of the radar, the camera, the distance measuring instrument and the like, the height position of the lifting type hopper can be adjusted, and the device is convenient to use. And the discharge port can be in butt joint with various devices, so that the universality is higher.

The application discloses a multi-ground ranging instrument positioning method based on carrier and pseudo-range, and utilizes the carrier and pseudo-range to combine the positioning of the multi-ground ranging instrument, and utilizes high-precision carrier phase observation to improve the DME positioning precision. m The technical scheme of the application comprises the following steps: positioning is performed by using the first to m ground ranging instruments DME1 to DME m ; observation equations of single-difference carrier phase and pseudo-range observation of DME1 and DME2 are constructed; the single-difference observation equations of all visible DMEs at the current time are solved to obtain the user position, wherein the single-difference integer ambiguity is obtained through orthogonal transformation. When the integer ambiguity of the carrier is solved, multi-epoch recursion is adopted to further improve the solving precision of the single-difference integer ambiguity, and meanwhile, the influence of the excessive calculation amount on the real-time performance of the algorithm is avoided.

The application relates to a disconnecting switch closing process state detection method and device and a self-detecting disconnecting switch. The method synchronously controls a laser range finder to rotate from a first support to a second support upon receiving a closing signal, then acquires distance data collected by the laser range finder during the rotation, and can determine a disconnecting switch closing detection result based on matching between the distance data and corresponding reference distance data. Therefore, the disconnecting switch closing process state detection method observes the closing condition of the disconnecting switch from the data dimension, and determines the disconnecting switch closing detection result based on the measured distance data and the corresponding reference distance data, so that automatic disconnecting switch closing process state detection is realized, and the reliability of the disconnecting switch closing detection result is improved.

The invention discloses an alignment detection method and system for a watertight structure of a ship. The method comprises the steps that if an alignment detection task of a watertight structure is detected, the distance between a sample punching point and a first side plate is obtained through the sample punching point of distance measurement equipment on a watertight wall; the sample punching point is positioned on the watertight wall at a position which is away from the second side plate by a preset length; and determining an alignment detection result of the watertight structure according to a comparison result of the distance from the sample punching point to the first side plate and the preset length. According to the scheme, the problem of poor reliability of alignment detection of the watertight structure is solved, the sample punching points are arranged at the positions, away from the second side plate by the preset length, on the watertight wall, distance measuring equipment is fixed at the sample punching points to measure the distance from the sample punching points to the first side plate, the distance from the sample punching points to the first side plate is compared with the preset length, and the alignment detection reliability of the watertight structure is improved. Whether the watertight structure is aligned or not is accurately judged, measurement errors caused by manual operation can be avoided, and the reliability of alignment detection of the watertight structure is improved.

This application provides a laser ranging apparatus, a rangefinder and a ranging method. The apparatus includes a processor, a first pulse generator, a second pulse generator, a mixer, and a laser transceiver module; the processor controls the first pulse generator to output a first pulse signal and controls the second pulse generator to output a second pulse signal; the mixer is configured to combine the first and second pulse signals to generate a reference intermediate frequency signal; the laser transceiver module is configured to emit a laser pulse toward a measured object based on the first pulse signal and obtain a target intermediate frequency signal for distance calculation based on the first and second pulse signals and a measurement pulse signal; the processor verifies the target intermediate frequency signal according to the reference intermediate frequency signal and calculates a distance to the measured object using verified target intermediate frequency signal.

This application discloses a directional high-frequency guided wave automatic control method and system for steel structure weld inspection, relating to the field of steel structure weld inspection technology. This method controls the inspection device to move along a travel track, and combines an infrared rangefinder and distance correction algorithm to ensure the inspection device moves along a predetermined route on the test piece without deviating from the route, thus guaranteeing the accuracy of the inspection signal. Simultaneously, an encoder is used for assisted positioning, recording the correspondence between probe displacement and signal in real time, providing parameters for subsequent data processing. The method also employs a bidirectional ultrasonic guided wave probe to simultaneously inspect welds on both sides, improving inspection efficiency. Furthermore, it can display the waveform detected by the probe in real time, facilitating rapid determination of the defect location. Finally, an intelligent recognition network is used to quickly identify whether the steel structure contains defects, the type of defect, and the location of the defect within the steel structure.

The invention relates to the technical field of tower crane posture monitoring equipment, in particular to a tower crane posture detection device for a bridge and a using method thereof.The tower crane posture detection device comprises a mounting base, the position of the posture detection device can be remotely controlled to be adjusted through a detection assembly, and meanwhile when an electric cylinder operates, the electric cylinder is driven to rotate; the electric cylinder adjusts the displacement angle of the stressed end of the fixing plate, so that the fixing plate drives the laser range finder to adjust the position, and the angle of the laser range finder can be adjusted; a laser signal emitted by the laser range finder is emitted to the surface of the laser range finding signal receiving end for data processing, and when the posture of the cargo boom of the tower crane deviates, the distance between the cargo boom and the basic section also changes; the wireless controller monitors the distance data between the four corners of the standard section of the tower crane and the ground, and the posture of the tower crane can be monitored only by referring to numerical values before and after posture change.

The invention relates to the field of radio distance measurement, in particular to a distance measurement device based on radio wave positioning for electric power engineering construction. Comprising a supporting disc, an adjusting supporting leg is rotationally connected to the supporting disc in the circumferential direction, a supporting bracket is fixedly connected to the side, away from the adjusting supporting leg, of the supporting disc, the supporting bracket is fixedly connected with an outer supporting ring through a stabilizing ball, an adjusting ball is arranged in the outer supporting ring, the adjusting ball is fixedly connected with a distance measuring instrument through a shell, and the distance measuring instrument is fixedly connected with an antenna; the supporting disc is provided with a locking assembly used for fixing. The height of the distance measuring instrument is adjusted through the supporting device, the distance measuring instrument is kept horizontal, the capacity of the device for adapting to different working positions is enhanced, the follow-up measurement accuracy is improved, the first sliding rod is locked through the locking assembly, the transverse contact area between the device and the ground is increased, and the device is further stabilized; measurement errors caused by deviation in the subsequent measurement process are prevented, the stability in subsequent use is ensured, and the measurement accuracy is improved.

The utility model discloses a portable safety guard distance measuring equipment relates to ranging equipment technical field, including protection box body and laser range finder, the lower extreme of laser range finder is connected with lifting rod through screw thread, the lower extreme of protection box body is set with the position of corresponding position of lifting rod and has the through slot, lifting rod and the through slot sliding connection, the side wall of protection box body and the position of corresponding position through screw thread are connected with fastening bolt, one side middle position of protection box body is rotatably connected with no.

The utility model relates to the technical field of laser measuring equipment, and particularly discloses handheld three-dimensional space distance measuring equipment which comprises a shell, a laser distance measuring module, an inertial navigation module, a communication module and a storage module which are electrically connected with a controller are installed in the shell, and a battery and a cooling fan are further installed in the shell; the input end of the controller is electrically connected with the laser ranging module, the inertial navigation module and the binocular camera, the output end of the controller is electrically connected with the storage module and the communication module, and after the controller receives an external instruction, distance information, space positioning information and three-dimensional information stored in the storage module are sent outwards through the communication module. According to the scheme, the problems that in existing three-dimensional space measurement work, when different types of data need to be collected, a total station, a laser scanner and other monitoring devices are inconvenient to carry, and when small devices are adopted, the devices need to be sequentially used for collecting the data, and then the data of the devices are exported, so that time cost is high can be solved.

The application discloses a polar coordinate-based range finder transmitting device and method. The device comprises a baseband signal processing module, an amplitude drive control module, a phase signal processing module and a power amplification module. The baseband signal processing module obtains a baseband signal, and generates amplitude and phase signals through decomposition and conversion, and transmits the signals to the amplitude drive control module and the phase signal processing module respectively. The amplitude drive control module performs pulse width modulation and voltage amplification on the amplitude signal to obtain a pulse width modulation signal. The phase signal processing module performs phase offset and digital-to-analog conversion on the phase signal to obtain a radio frequency signal. The power amplification module receives the pulse width modulation signal and the radio frequency signal, and transmits a target transmitting signal after drain amplification and switch mode amplification. Through dual-mode amplification, the efficiency of the device is improved, the heat of the device is reduced, and the reliability of the device is improved.

The invention discloses a ground calibration method and device based on a space two-dimensional scanning mechanism, and relates to the technical field of aerospace, and the method comprises the steps: turning on a laser range finder; a two-dimensional scanning mechanism is started, and a laser ranging result is obtained; recording a return voltage parameter S1 of the linear motor, a starting voltage parameter S2 of the linear motor and an accumulated voltage parameter S3 of the linear motor; rotating the whole ground calibration device by 90 degrees to a horizontal state, observing a laser ranging result, measuring a difference value of constant gravity in the horizontal state and the vertical state, and recording an output voltage value S4; the difference value of the S1 and the S4 is used as an output voltage value A, the difference value of the S2 and the S4 is used as an output voltage value B, the S3 is used as an accumulated voltage value C, and A, B and C are ground calibration results. The device comprises a vertical test support, a laser range finder and a two-dimensional scanning mechanism. According to the method, the inversion precision of the temperature and humidity profile of the infrared photoelectric remote sensing instrument is improved, and the on-orbit quantification level of the infrared photoelectric remote sensing instrument is improved.

To improve measurement accuracy by accurately capturing reflected waves from a tunnel wall surface even when a radar range finder is used as a distance measuring device in a spray nozzle device equipped with a distance measuring device for measuring the distance to the tunnel wall surface.SOLUTION: In a spray nozzle device 5 comprising a base plate 7 arranged perpendicular to the spray direction at a base end of the spray nozzle 27, a plurality of distance measuring devices 6 are mounted on the base plate 7 at appropriate intervals around the circumference, a circular covering plate 10 made of a material that transmits radio waves from the distance measuring devices 6 is mounted at a distance from the base plate 7 and is rotatable around its central axis to cover the plurality of distance measuring devices 6, and rotation means 11 is provided for rotating the covering plate 10. A radar range finder is used as the distance measuring device 6, and the radar range finder 6 is positioned at an angle so that the radio waves from the radar range finder 6 are incident at an angle oblique to the covering plate 10.SELECTED DRAWING: Figure 4

The utility model belongs to the technical field of infrared distance measuring equipment, and particularly relates to a vertical infrared distance measuring device which comprises a supporting rod, a connecting block is fixedly connected to the bottom of the supporting rod, a vertical rod is fixedly connected to the bottom of the connecting block, two sets of positioning grooves are formed in the vertical rod, and a reinforcing rod is hinged to the arc-shaped surface of the connecting block. When the device is used outdoors, by adjusting the position of an adjusting ring, a rubber positioning block enters a positioning groove in the upper portion, the position of the adjusting ring is fixed, and a connecting rod is fixed to be in a transverse flat state, so that three sets of reinforcing rods form a triangular shape on the outer side of a vertical rod, an anti-skid pad makes direct contact with the ground, and the friction force between the device and the ground can be increased; the stability of the vertical infrared distance measuring device can be improved when the vertical infrared distance measuring device is used outdoors through the cooperation of the vertical support and the infrared distance measuring device, infrared signal fluctuation caused by wind vibration during outdoor measurement is avoided, the distance measuring standard deviation can be reduced through the stable support, and then the measurement accuracy of the vertical infrared distance measuring device can be improved.