164 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 invention relates to a vehicle-mounted radar height adjustment method and device based on composite distance measurement and machine vision, and the method comprises the steps: collecting the composite ground clearance information of a vehicle-mounted ground penetrating radar through a composite distance measurement module based on a millimeter-wave radar range finder and a single-point laser range finder in a vehicle driving process, acquiring driving condition information through a machine vision acquisition module; based on a weighted terrain clearance algorithm, the composite terrain clearance information is fused and calculated, and a composite average terrain clearance and a composite advancing pitch angle are obtained; road surface dangerous targets are detected and classified according to the driving condition information based on a machine vision model; and according to the composite average ground clearance, the composite advancing pitch angle and the detection result of the road surface dangerous target, performing adaptive ground clearance adjustment of the vehicle-mounted ground penetrating radar based on a composite distance measurement-dangerous target double-reduction mechanism. Compared with the prior art, unmanned, automatic and precise effects are achieved, and meanwhile the safety and stability of equipment are guaranteed.

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 utility model belongs to the technical field of temperature measuring and distance measuring instruments, and particularly relates to a three-kilometer distance measuring instrument with temperature measuring and distance measuring functions, which comprises a temperature measuring and distance measuring instrument main body and an eyepiece arranged on the temperature measuring and distance measuring instrument main body, and a micro motor is arranged on the top surface of the front end of the temperature measuring and distance measuring instrument main body. The micro motor is electrically connected with a control system in the temperature and distance measuring instrument body, the output end of the micro motor is fixedly connected with a connecting block, and one end of the connecting block is integrally connected with a cover plate matched with the front end of the temperature and distance measuring instrument body. According to the utility model, through mutual cooperation among the micro motor, the connecting block and the cover plate, automatic overturning of the cover plate at the front end of the temperature and distance measuring instrument main body can be realized, so that the front end of the temperature and distance measuring instrument main body can be covered, and a good protection effect is achieved.

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 utility model discloses an auxiliary device for logging a range finder, relates to the field of geological logging, and aims to solve the problems that a tape in the prior art is aged and inaccurate in measurement information after being used for a long time, and the measurement distance of the tape flatly laid on the ground has errors due to the unevenness of the ground of a roadway. And meanwhile, accumulated water and sludge on the ground of the roadway can cause the pollution of a tape, so that the reading is difficult, and the geological record is greatly influenced and inaccurate. A geological structure line is arranged on the inner side wall of the first roadway, a second roadway is connected to one side of the first roadway, a starting measuring point is arranged in the second roadway, a distance measuring instrument is fixedly arranged on the starting measuring point, and a plurality of wall fixing devices are fixedly connected to the inner side wall of the first roadway and the geological structure line. One end of each wall fixing device is connected with a telescopic rod, and one end of each telescopic rod is connected with a signal receiving baffle.

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.

The utility model relates to the technical field of distance measuring instruments for electric power construction, in particular to a distance measuring device for electric power construction. According to the technical scheme, the device comprises a mounting frame and a laser range finder, the mounting frame comprises a mounting plate, a placement plate is arranged on one side of the mounting plate, a mounting table is arranged above the placement plate, a large gear is arranged at the position, located below a reinforcing rib plate, above the placement plate, and an adjusting gear is arranged on one side of the periphery of the large gear; a positioning mechanism is arranged at the position, located below the adjusting gear, of one side of the containing plate, and a mounting clamping base is arranged above the large gear. According to the utility model, the laser range finder is matched with the mounting rack, so that an operator can quickly mount and position the device during power construction, the stability of the device in an operation state is ensured, and the operator can accurately adjust the measurement angle according to the operation requirement through the positioning mechanism matched with the large gear and the adjusting gear; therefore, accurate measurement can be better carried out during power construction operation.

Provided is a three-dimensional data measuring system including a measuring module including a prism, an electronic distance meter configured to measure an irradiated point, an inertial measurement unit detecting posture information, a notification unit, a communication unit, and a control arithmetic unit configured to calculate own position coordinates and the irradiated point position coordinates, and a surveying instrument configured to acquire the prism position coordinates, and transmit the prism position coordinates to the communication unit. The control arithmetic unit is configured to partition the measurement range into mesh-like partitioned areas and acquire three-dimensional data for each partitioned area, and determine whether a partitioned area satisfies at least one condition for each time acquiring a measurement value, and, when the partitioned area satisfies the condition, instruct the notification unit to issue a warning and re-partition a condition-satisfying area into a plurality of areas with dimensions smaller than initial dimensions.

The invention is suitable for the technical field of ship detection, and provides ship detection equipment, which comprises a guide strip connected with a ship through a mounting plate; the detection box is in sliding connection with the guide strip through a guide assembly, the top of the guide strip is provided with a second range finder used for detecting the distance between the top of the detection box and the mounting plate, and the top of the detection box is further provided with a hanging hook used for being connected with a traction rope; the buoyancy part is arranged at the bottom of the detection box; the sea wave induction type control assembly is used for adjusting the working state of the range finder II and is arranged in the detection box; and the driving assembly is used for driving the sea wave induction type control assembly to work. The detection precision can be effectively prevented from being easily influenced by sea waves.

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.

To provide a three-dimensional data measurement system capable of measuring three-dimensional data with good accuracy.SOLUTION: Provided is a three-dimensional data measurement system comprising: a measurement module including a prism, a light wave range finder for detecting the distance to an irradiation point, an inertial measurement device for detecting attitude information, a notification unit for issuing an alarm, a communication unit for receiving the position coordinate of the prism, and a control arithmetic unit constituted to calculate the position coordinate of the position itself and calculate the position coordinate of the irradiation point on the basis of the position coordinate of the prism and the attitude information; and a surveying instrument for measuring the distance and angle of the prism to acquire the position coordinate of the prism and transmitting it to the communication unit. The control arithmetic unit divides a measurement range into meshes and acquires three-dimensional data for each divided region, confirms whether or not a condition is met each time a measurement value is acquired in the divided region and causes the notification unit to issue an alarm when the condition is met, and re-divides a region applicable to the condition into a plurality of smaller regions.SELECTED DRAWING: Figure 6

The application discloses a converter liquid level measuring device and method, and belongs to the technical field of converter liquid level measurement. The application comprises a base plate, the upper end of the base plate is provided with a base, the top of the base is provided with a main cross arm, the lower part of the main cross arm is provided with a telescopic air cylinder; the telescopic end of the telescopic air cylinder is connected with a protective cover, the inside of the protective cover is symmetrically provided with a radar range finder; the front part of the base plate is symmetrically provided with two lifting air cylinders, the upper end of the lifting air cylinder is rotationally connected with the main cross arm. The main cross arm is driven to ascend and lock by the lifting air cylinder and the locking air cylinder, the protective cover and the radar range finder are driven to telescope by the telescopic air cylinder and the measuring task is completed, the radar range finder automatically implements the liquid level measuring action, the whole measuring period is short, the liquid level measuring frequency can be improved, the production efficiency is improved, the measurement does not need to be manually performed, the personnel risk can be reduced, the safety is ensured, and the liquid level height measuring accuracy of the converter is significantly improved.

The present invention provides a rangefinder mounting and adjustment mechanism and a rangefinder photographing device using the same. The rangefinder mounting and adjustment mechanism includes: a rangefinder mounting frame; an adjustment frame connected to the rangefinder mounting frame, one of the adjustment frame and the rangefinder mounting frame being provided with a guide rail and the other being provided with a guide groove, so that the rangefinder mounting frame is supported on the adjustment frame and can be guided and moved; and a positioning structure for positioning the rangefinder mounting frame after it is moved into position; a fixed frame connected to the adjustment frame, one of the fixed frame and the adjustment frame being provided with a slide rail and the other being provided with a slide groove, so that the adjustment frame is supported on the fixed frame and can be guided and moved; and a fixing structure for positioning the rangefinder mounting frame after it is moved into position; one of the guide rail and the slide rail extending in the front-to-back direction, and the other extending in the left-to-right direction. Advantageous Effects: When adjusting the positions of the rangefinder mounting frame and the adjustment frame, manual support is not required, which can reduce labor intensity and facilitate adjustment operations.

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.