217 results about "Distance measuring equipment" patented technology

The invention relates to the technical field of fault positioning, and particularly discloses a digital distribution network fault traveling wave range finder and method, and the range finder employs fault traveling wave collection devices disposed at all key nodes of a distribution network to collect fault traveling wave signals in real time, and obtains stable line mode traveling wave signals through signal filtering and line mode component extraction. Then introducing a signal processing algorithm based on deep learning to carry out time domain feature analysis on the line mode traveling wave signal of each key node so as to detect the wave head position of the signal, further determining a power distribution network section where a fault point is located by comparing the signal arrival time of each key node, and determining the fault location of the power distribution network based on a double-end traveling wave distance measurement algorithm. And calculating the distance between the fault point and the nodes at the two ends according to the signal arrival time difference of the nodes at the two ends of the section and the signal propagation speed. Thus, through deep time domain analysis of the fault traveling wave signal, the wave head position of the signal can be accurately identified, and the reliability of distribution network fault traveling wave distance measurement is improved.

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 relates to the technical field of bridge deflection monitoring equipment, in particular to a bridge state real-time monitoring device, system and method based on radar deployment. A reciprocating motion mechanism and a tooth holder are arranged on the surfaces of the two sides of the bearing plate frame respectively, and the other end of the reciprocating motion mechanism penetrates through the surface of the other side of the bearing plate frame and is provided with a wheel type pressure detection mechanism and an infrared distance meter respectively; the triangular target and the irradiation lamp are respectively arranged on the rotating disc and the surface of one end, penetrating through the other side of the bearing plate frame, of the rotating disc. The structure is reasonable, diversified monitoring means are adopted, the monitoring accuracy and reliability are effectively improved, the installation process of the triangular targets is simplified, the installation number of the triangular targets is reduced, the working efficiency is improved, damage to a bridge structure is remarkably reduced, the rapid positioning function of radar equipment is achieved, and the monitoring accuracy and reliability are improved. And the monitoring efficiency is further improved.

The embodiment of the invention provides an unmanned aerial vehicle lead sag measuring device and method, and belongs to the technical field of ground wire measurement. The sag measuring device comprises a measuring device shell which is arranged on an unmanned aerial vehicle and is driven by the unmanned aerial vehicle to move; the collimator is arranged on the front face of the measuring device shell so as to aim at the wire; the laser radar range finder is arranged on the side surface of the collimator and is used for carrying out range finding on the aimed wire; the base station shell is arranged on the unmanned aerial vehicle and is driven by the unmanned aerial vehicle to move, a base station module is arranged in the base station shell, and the base station module is used for RTK positioning difference; and the integrated circuit main board is arranged in the measuring device shell, and a measuring module is arranged in the integrated circuit main board so as to calculate the measured wire distance and the positioning of the unmanned aerial vehicle. The sag measuring device can be used for quickly and conveniently measuring the wire.

The invention discloses a pole piece lamination deviation rectification method and system, and relates to the technical field of energy storage batteries, and the method comprises the steps: S100, obtaining the position of a lamination table, and determining the preset standard position of a pole piece on a deviation rectification table; s200, acquiring a preset distance between the range finder and the pole piece at the preset standard position of the pole piece; s300, the actual distance between the distance measuring instrument and the pole piece arranged on the deviation correcting table is obtained; s400, according to the actual distance and the preset distance, the deviation rectifying table is driven to move so that the pole piece can move till the distance between the pole piece and the distance meter is equal to the preset distance; and S500, executing a pole piece lamination process. The preset standard position and the actual position of the pole piece on the deviation rectifying table are obtained through the distance measuring instrument, the deviation rectifying table is directly moved, so that the pole piece reaches the required lamination position, the edge grabbing error of the pole piece is avoided, the lamination effect is better, the accuracy is higher, and the pole pieces of various specifications can be effectively laminated.

The invention discloses a variable code rate pseudo code distance measuring device and a distance measuring method, and mainly solves the problem of super-high altitude tracking error height of a fixed code rate pseudo code distance measuring device. Comparing the height values captured twice: if the absolute value of the height difference value captured and solved twice continuously is within a pre-value range, judging that the signal is a normal signal, and outputting an effective height to the outside; if the absolute value of the height difference value obtained through continuous two times of capturing and resolving is within the superaltitude pre-value range, it is judged that the distance measuring equipment conducts internal tracking, and invalid height is output outwards; and if the absolute value of the height difference obtained by two continuous capturing and resolving is in other conditions, judging that the distance measuring equipment performs abnormal tracking, and continuously searching to ensure that the distance measuring equipment outputs normally during super-high-altitude tracking. The method can prevent the false tracking height of the pseudo code ranging equipment, improves the interference suppression capability of the ranging equipment, and can be used for measuring the flight height in aerospace crafts or radar equipment.

The invention relates to the technical field of compaction pile construction, and discloses a pile hole depth measuring device, which comprises a frame body placed on the ground on the outer side of a pile hole; the upper part of the vertical rod is hinged with the frame body through a hinged support; the balancing weight is arranged at the lower end of the vertical rod; the range finder is mounted on the lower side of the balancing weight and faces the bottom of the pile hole; the copper plate is connected to the upper end of the vertical rod; the magnet is mounted on the frame body and positioned on the upper side of the copper plate; a gap is formed between the magnet and the copper plate; the distance measuring instrument supported by the vertical rod is used for measuring the depth of the pile hole, the structure is simple, operation is convenient, a measuring rope does not need to be wound and unwound, the distance measuring instrument can be fast and stable through electromagnetic damping, meanwhile, it can be guaranteed that the measuring direction of the distance measuring instrument is vertically downward all the time, and the measuring accuracy and efficiency are improved.

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 an in-station interval multifunctional operation vehicle and a using method, the in-station interval multifunctional operation vehicle comprises a rotary telescopic mechanism and a hoisting mechanism which are installed on a walking platform, a lifting platform which lifts in the vertical direction is installed at the output end of the rotary telescopic mechanism, and the in-station interval multifunctional operation vehicle further comprises an angle monitoring module and a distance measuring instrument; hoisting operation can be carried out in a narrow operation space, an operation device integrated with an aerial work platform is integrated, the safety, efficiency and precision in the maintenance and overhaul process of the transformer substation are improved, the transformer substation can adapt to the complex environment, and manpower resources are saved; the relative positions of the hoisting mechanism and the lifting platform are automatically judged according to position data, collected in real time, of the hoisting mechanism and the lifting platform. The rotating angle is obtained through the angle monitoring module installed on the rotating shaft, the telescopic length is measured through the range finder, and the pitching angle of the hoisting mechanism is obtained through the angle sensor. By means of the data, the system calculates the lifting height of the hoisting mechanism and the lifting height of the lifting platform, and it is guaranteed that interference does not occur between the hoisting mechanism and the lifting platform.

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 invention discloses an SINS / DME / DME integrated navigation system performance evaluation method, which comprises the following steps: according to a state equation and a measurement equation of an SINS / DME / DME integrated navigation system, calculating slope distance data calculated by a position through a strapdown inertial navigation system SINS and slope distance data measured by a distance meter DME, and fusing by adopting a Kalman filtering algorithm, specifically comprising two parts of time updating and measurement updating; evaluating the performance of the SINS / DME / DME integrated navigation system based on the actual navigation performance ANP calculation model of the filtering covariance; the method has the advantages of simple calculation, credible result and the like.

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 invention relates to a main shaft error testing system based on a wireless acceleration sensor. The main shaft error testing system comprises the wireless acceleration sensor, a signal receiver, a signal processor and a data processing module, the wireless acceleration sensor is used for collecting a time domain acceleration signal; the signal receiver is used for transmitting the signal to the signal processor; the signal processor is used for storing the signal received by the signal receiver and exporting the signal to the data processing module; and the data processing module is used for calculating the time-domain acceleration data and converting the time-domain acceleration data into rotation errors of the high-precision main shaft or the rotary table. The main shaft error testing system has the advantages of being simple, easy to operate, low in cost and the like; a standard workpiece and a precise distance measuring instrument are not needed, the test can be completed only through the wireless acceleration sensor, and error separation of test data is not needed; precise distance measuring instruments such as a laser interferometer are not needed, and the environment adaptability is good.

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.

A ground slope detection method, device and computer-readable storage medium. The method includes: (S1) during landing of an aircraft, calculating a unique plane of at least three downward-looking distance detection points in a body coordinate system of the aircraft according to three-dimensional attitude data of the aircraft and distance data of at least three downward-looking rangefinders provided on the aircraft; (S2) calculating a rotation matrix of the body coordinate system to a geodetic coordinate system by the three-dimensional attitude data, and calculating a first unit normal vector of the unique plane in the geodetic coordinate system according to the rotation matrix; and (S3) calculating an included angle between a second unit normal vector of a geodetic horizontal plane in the geodetic coordinate system and the first unit normal vector, and generating a warning signal of excessive ground slope when the included angle is greater than or equal to a preset threshold. The method reduces the system hardware cost and maintenance and use difficulty of slope detection, providing effective protection for the safety of aircraft landing.

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.

The utility model discloses multifunctional measuring equipment for building construction, which belongs to the technical field of building construction measurement and comprises a mounting frame, a level gauge body, a distance measuring instrument body, a fixing rod, a sleeve, a bolt, a multifunctional switching component and a replacement component. The distance measuring instrument body is also installed in the installation frame, one end of the fixing rod is fixedly connected with the lower portion of the installation frame, the fixing rod rotates in the sleeve, the bolt is rotatably connected in the sleeve, and one end of the bolt penetrates through the sleeve and abuts against the outer surface of the fixing rod. The multifunctional switching assembly is mounted on the outer surface of the mounting frame, so that distance measurement, leveling and the like can be switched back and forth, the functionality is more, and the problem that carrying is difficult due to the fact that multiple measurement devices, supports and the like need to be carried during building measurement and too many instruments are carried 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.

The utility model discloses a lifting hook tracking distance measuring device which comprises a connecting plate, a position adjusting device, a mounting bracket, a tracking camera, a distance measuring instrument and a controller, wherein the position adjusting device is mounted on the connecting plate, the mounting bracket is connected to the position adjusting device, the tracking camera is connected to the mounting bracket, and an indication mark facing a tracking lens on the tracking camera is arranged on the lifting hook. The tracking camera is connected with the controller and is used for tracking and shooting a position image of an indication mark on the lifting hook so as to obtain real-time position information of the indication mark on the lifting hook, and the controller is connected with the position adjusting device; and the controller is used for controlling the position adjusting device to act according to the obtained real-time position information. The distance measuring device can enable the distance measuring instrument to track the shaking position of the lifting hook so as to enable the distance measuring direction of the distance measuring instrument to be aligned with the lifting hook, and further enable the distance measuring instrument to accurately measure the distance of the lifting hook.