95 results about "Stadimeter" patented technology

The invention discloses a building interior wall flatness detection device and method, and belongs to the field of wall flatness detection. A building interior wall flatness detection device comprises a moving seat, the bottom of the moving seat is fixedly connected with multiple groups of moving wheels, the top of the moving seat is fixedly connected with a lifting frame, the building interior wall flatness detection device further comprises a lifting plate, and the lifting plate is slidably connected between the inner walls of the two sides of the lifting frame; according to the invention, through rotation of the vertical screw rod and the horizontal screw rod, the optical range finder detects the whole wall surface, so that the detection efficiency and accuracy are effectively improved; floating ash impurities attached to the wall surface are swept away by using a cleaning brush, so that the influence of dust impurities and the like on a detection result is reduced, and the detection accuracy is further improved; and in the moving process of the translation sleeve, the outer magnetic plate and the inner magnetic plate are utilized to generate a flow guide effect in the piston box, so that the floating ash scraped and swept by the cleaning brush moves directionally, interception and collection of the floating ash are realized, and the environmental quality in a detection area is effectively improved.

The utility model discloses a bridge ship collision prevention active protection device which comprises a laser range finder, a control assembly, a main bridge pier, a main bridge bearing platform, a separation type ship collision prevention facility structure, a polyurethane foam rotary drum and a riverbed, the laser range finder and the control assembly are arranged on the upper portion of the main bridge pier, and the main bridge bearing platform is arranged at the bottom of the main bridge pier. A plurality of separated ship collision prevention facility structures are arranged on the periphery of the main bridge bearing platform on the main bridge piers, polyurethane foam rotating cylinders are arranged on the separated ship collision prevention facility structures, and the other ends, away from the polyurethane foam rotating cylinders, of the separated ship collision prevention facility structures are used for being buried in a riverbed to be fixed. When the distance between the ship and the main bridge pier is detected to be smaller than a certain range through the optical distance measuring instrument, the control assembly controls the gas generator to inflate the gas bag to generate buoyancy, the polyurethane foam rotating drum is pulled to the water surface through the buoyancy to make contact with the ship, and the situation that the ship collides with the main bridge pier and consequently the main bridge pier is damaged is prevented.

1. Name of the product in this design: Handheld Cooled Day and Night Observation Instrument. 2. Purpose of this design: For observation, and can be used with observation instruments such as thermal imagers, night vision devices, telescopes, and rangefinders. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

The invention discloses a ground source heat pump pipeline settlement detection system and method, belongs to the technical field of underground energy facility safety monitoring, and mainly solves the problems that a traditional underwater environment detection means is low in precision and difficult to implement. The device is fixed to the inner pipe wall of the ground source heat pump through a waterproof protection shell, an integrated underwater laser range finder vertically emits laser to the inner wall of an outer pipe, and the settlement distance is calculated in real time based on the formula d = c * t / 2; meanwhile, the inclination angle of the inner pipe is monitored through a gyroscope chip, the output voltage U and the angular speed omega meet the condition that U = K * omega, and inclination changes are analyzed through the angular acceleration alpha = delta omega / delta t; geospatial data are collected in combination with a GIS module, pipeline features are uploaded to a server by a handheld terminal, and a settlement positioning map is generated; the electronic equipment sets threshold values dmax and theta max, and when the real-time data exceed the threshold values, sound-light alarm is triggered. The system is used for monitoring pipeline settlement displacement and inclination angle changes in a high-precision mode, and automatic fault early warning and precise positioning maintenance are achieved.

The invention discloses a real-time positioning system and method of an underwater glider and the underwater glider, and belongs to the technical field of underwater detection equipment. The real-time positioning system comprises an acoustic positioning system, an inertial navigation unit, an electromagnetic ocean current meter and a control unit. The acoustic positioning system is composed of an ultra-short baseline range finder electronic cabin and an ultra-short baseline electroacoustic transducer and used for emitting acoustic signals and carrying out underwater position calculation through a tracking ship. The inertial navigation unit comprises a gyroscope, an accelerometer and a magnetometer; the electromagnetic ocean current meter is used for acquiring ocean current speed data; and the control unit is used for receiving and fusing data of the acoustic positioning system, the inertial navigation unit and the electromagnetic current meter, and optimizing real-time position estimation of the underwater glider through a fusion algorithm based on Kalman filtering. According to the system, the path and the track of the underwater glider for executing the observation task can be accurately obtained, and the ocean observation and detection accuracy is greatly improved.

1. The name of the design product: hand-held telescope range finder (SW-1000X). 2. The use of the design product: for long-distance observation and has ranging function. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

A distance measuring device according to the present disclosure comprises: a light reception unit that outputs a pixel signal in response to received light; an optical element that changes and emits an optical path of incident light; and a distance measuring unit that performs distance measurement on the basis of the time at which light is emitted from a light source and the time at which the light is received by the light reception unit. The optical element is provided on an optical path from emission of light from the light source to reception of reflected light by the light reception unit, the reflected light being produced by said light being reflected by an object. The optical path is changed in accordance with the distance between the light source or the light reception unit and the object.

The invention provides a portable low-cost millimeter wave radiation imaging system and system. The system comprises a millimeter wave radiometer, an IMU module, a range finder, an optical camera, an acquisition module, a wireless transceiver module, a power supply module, an equipment appearance tool, client equipment and a detachable portable support rod. The millimeter wave radiometer is used for acquiring a millimeter wave radiation brightness temperature value of an observation scene, the IMU module is used for acquiring azimuth angle and pitch angle information of the meter wave radiometer, the range finder is used for acquiring the distance to the observation scene or a target, and the optical camera is used for acquiring an optical image of the observation scene; synchronously acquiring the data through an acquisition module; the collected data is transmitted to client equipment through the wireless receiving and transmitting module; performing two-dimensional uniform interpolation on the non-uniform azimuth angle and pitch angle on the client device; performing corresponding interpolation processing on the millimeter wave radiation brightness temperature value to generate a homogenized millimeter wave radiation image; and performing registration and fusion display on the millimeter wave radiation image and the optical image.

The invention discloses an underwater binocular camera calibration method based on laser assistance, and the method comprises the steps: firstly constructing an underwater stereoscopic vision binocular refraction-removing imaging model according to the Snell's law, and correcting an underwater imaging error; secondly, acquiring a camera internal reference matrix by using a Zhang Zhengyou calibration method; then, a laser range finder is used for projecting laser to the calibration plate to form a light spot, the center pixel coordinate of the light spot is extracted through a gray gravity center method, the three-dimensional coordinate of the light spot is calculated in combination with laser ranging data, and the initial value of an external parameter matrix of the binocular camera is solved; and finally, introducing a Bayesian optimization algorithm, and optimizing the constraint equation by taking minimization of a three-dimensional coordinate calculation error as a target so as to obtain an exact solution of an external parameter matrix of the camera. Through organic combination of a deep learning technology and binocular stereo vision, the parameter calibration precision of the underwater binocular stereo vision camera is improved, a reliable technical guarantee is provided for subsequent underwater concrete structure defect quantification, and the fine monitoring requirement in a complex water environment is met.

This invention belongs to the field of water environment monitoring technology, specifically relating to an in-situ spectral measurement device and method for shallow lakes. The measurement device includes a housing and a water-passing grid module. A vertical rangefinder, an adjustable mounting bracket, a fixed mounting bracket, and a communication module are mounted on the top of the housing. The adjustable and fixed mounting brackets are used to mount the light source and the spectrometer, respectively. A water inlet is vertically opened in the middle of the side wall of the housing. The water-passing grid module includes a light-blocking baffle and a traction ring. The light-blocking baffle is slidably mounted on the side wall of the housing and is correspondingly positioned to the water inlet. The traction ring is installed on top of the light-blocking baffle and is used to move the light-blocking baffle up and down along the water inlet as it floats with the water level. A signal trigger is located on the side wall of the housing near the top of the water inlet. This invention achieves fully automatic spectral measurement and combines the in-situ characteristics of field acquisition with the illumination stability of darkroom acquisition.

A 3D scanning device includes a distance measuring module, a scanning platform, a control module and a power source module that are accommodated in a space defined by a shell that is operable to open and close. The distance measuring module includes a bracket detachably mounted on the shell, and multiple optical rangefinders on the bracket. The scanning platform includes a stepper motor in the space, and a support base rotatable by the stepper motor. The control module is communicatively connected to the optical rangefinders and the stepper motor. The power source module provides electric power to the optical rangefinders, the stepper motor and the control module.

The invention discloses a multi-beam image sonar and underwater optical image fusion-based comprehensive acquisition device, belongs to the field of underwater acoustic detection, and aims to solve the problem that the cooperative work accuracy of an existing multi-beam image sonar and an underwater optical image device is affected due to the fact that the working frequency of the existing multi-beam image sonar and the working focal length of the underwater optical image device are difficult to achieve ideal adaptation. The system comprises a sonar mechanism, an image acquisition mechanism, a calibration mechanism, a front end fixing block and a horizontal range finder. A wiring pipe is arranged in the center of the front end of the underwater propeller, and one end of the wiring pipe communicates with the interior of the underwater propeller; the front-end fixing block is mounted at the other end of the wiring pipe, and a horizontal range finder is mounted on the front side of the front-end fixing block; the sonar mechanism, the image acquisition mechanism and the calibration mechanism are arranged around the front-end fixing block at equal angles in the circumferential direction, the sonar mechanism and the image acquisition mechanism are both installed on the front-end fixing block, and the calibration mechanism is installed on the wiring pipe in a sleeving mode. The device is mainly used for collecting data of a target object during underwater detection.

This observation device (1) comprises a mechanical structure, a display module (5), an optical combiner (7), and an optical system (9) configured to direct an image from the display module (5) to the optical combiner (7). The optical combiner (7) directs to an observation area (11) the superposition of, on the one hand, a light beam from an observed scene (15) via a direct optical path (3) and, on the other hand, the image from the display module (5). The observation device (1) comprises a rangefinder (27) configured to emit and receive laser radiation to and from the observed scene (15) by passing said laser radiation through the direct optical path (3). Figure for the abbreviation: Fig. 1

The invention discloses a high-precision detection device and method for a large well chamber, and relates to the field of geotechnical engineering detection and test.The detection device comprises a host, a well mouth tripod, a depth step counting wheel, a motor and a spherical machine, and an optical range finder, a sonar probe, a camera and a depth sensor are integrated in the spherical machine; the host controls the motor to drive the depth pedometer wheel to control the lifting of the spherical machine, and the detection mode can be automatically switched; the invention further comprises a detection method based on the device. The method comprises the steps of controlling the spherical machine to ascend and descend, switching detection modes, collecting space information, conducting fusion processing to generate a three-dimensional digital model of the well chamber and the like. According to the invention, digital acquisition and three-dimensional model reconstruction of the spatial contour and the internal structure attribute of the large well chamber are realized, the detection modes can be automatically switched according to the well chamber environment, and the detection precision and efficiency are improved.

The utility model discloses a tower crane tower body inclination monitoring device which comprises an installation support used for being connected with the top of a tower body, a first photoelectric distance measuring instrument and a second photoelectric distance measuring instrument are installed on the installation support, and the first photoelectric distance measuring instrument and the second photoelectric distance measuring instrument are installed in a mutually perpendicular and crossed mode. The first electro-optical distance meter and the second electro-optical distance meter are respectively provided with a level bubble, when the level bubble on the first electro-optical distance meter is centered, the measuring light of the first electro-optical distance meter is parallel to the vertical line of the tower body, and when the level bubble on the second electro-optical distance meter is centered, the measuring light of the second electro-optical distance meter is parallel to the vertical line of the tower body. And the measuring light of the second photoelectric range finder is parallel to the mounting surface of the tower body. According to the utility model, the gradient and the settlement value of the tower body of the tower crane can be continuously monitored, so that the tipping accident of the tower body is avoided.

The invention relates to an observation device (1) which comprises a mechanical structure, a display module (5), an optical combiner (7) and an optical system (9) which is configured to direct an image output from the display module (5) towards the optical combiner (7), the optical combiner (7) directing, towards an observation zone (11), the overlay of a light beam originating from an observed scene (15) via a direct optical path (3) and the image output from the display module (5), the observation device (1) comprising a rangefinder (27) which is configured to emit and receive a laser beam towards and from the observed scene (15) by passing the laser beam through the direct optical path (3).

The utility model relates to the technical field of range finders, and discloses a range finder for measuring distance through refraction, which comprises a placing frame, a range finder body is arranged in the placing frame, a working box is fixedly arranged on one side of the range finder body, a limiting assembly is arranged on one side of the working box, the limiting assembly comprises a limiting hole, and the limiting hole is communicated with the working box. The limiting holes are formed in the peripheral side of the limiting disc, and the limiting disc is fixedly connected with the rotating shaft. According to the working box, the limiting assembly is arranged and used for limiting and fixing the rotating shaft, so that the rotating shaft cannot deflect when shaking, and the situation that the reflection angle of a lens in the working box is changed due to shaking is avoided.

1. The name of the design product: multi-sensor integrated monitoring sighting device. 2. The use of the design product: used with observation instruments such as thermal imager, night vision device, telescope and range finder. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

1. The name of the design product: multifunctional thermal imager. 2. The use of the design product: used as observation and aiming instruments, such as AR glasses, infrared thermal imagers, cameras, telescopes, range finders, scopes, etc. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1.

The invention discloses a testing device, and relates to the technical field of testing devices.The testing device comprises a workbench, a positioning tool, a moving assembly, a distance measuring instrument, a lead screw and a hysteresis brake, the positioning tool is installed on the workbench, the moving assembly comprises a sliding frame, a calibration piece, a nut and a force sensor, and the sliding frame comprises a first support and a second support; the first support is connected with a moving block of a to-be-detected workpiece, the second support is slidably mounted on the workbench, the nut is connected with the second support, and the calibration piece is mounted on the first support or the second support and can slide along with the first support or the second support; the range finder is used for measuring the sliding distance of the calibration piece; one end of the screw rod is rotationally mounted on the workbench, and the nut is in threaded connection with the screw rod; the hysteresis brake is connected with the other end of the lead screw and used for providing resistance for preventing the lead screw from rotating. According to the invention, the displacement adjustment precision of the lens of the intelligent wearable device can be improved.

The present invention discloses a spiral angle measuring device for a rectangular compression spring of equal pitch and a measuring method thereof. In the mid-diameter measuring mechanism of the present invention, the linear slide module 1 drives the claw group to translate, and the transmitting end and the receiving end of the light curtain micrometer are respectively located on both sides of the linear slide module 1. In the initial state, the two claws are symmetrically arranged about the vertical light curtain emitted by the transmitting end; in the number of turns measuring mechanism, the horizontal moving mechanism drives the electric telescopic frame to translate, the electric telescopic frame drives the inner support fixture to translate, and the linear slide module 2 drives the annular frame to translate; in the height measuring mechanism, the linear slide module 3 drives the annular pressure plate to translate, and the laser rangefinder is fixed to the frame through the fixed frame 1. The present invention realizes the detection of the outer diameter, inner diameter, total number of turns, free length and compressed length of the spring to be detected through the mid-diameter measuring mechanism, the number of turns measuring mechanism and the height measuring mechanism, provides data for the calculation of the spring spiral angle, and further provides a basis for judging whether the size of the spring spiral angle is qualified.

A night vision device, a range finder, a sighting device, or a scope, with a more useful night vision image during use. Night vision images of a scene are obtained at different illuminations and mergi

The utility model relates to the technical field of lens detection, and discloses a range finder lens eccentricity detection device which comprises a workbench, a clamping assembly is arranged on the surface of the workbench, the clamping assembly comprises a fixing disc, the fixing disc is fixedly connected with a soft cushion through a sliding block, and the sliding block is rotationally connected with a rotating piece through a connecting rod. The sliding block is fixedly connected with a connecting rod through a lengthening rod, the lengthening rod is fixedly connected with a hydraulic rod through the connecting rod, a protective box is arranged on the surface of the workbench, a sliding groove matched with the sliding block is formed in the protective box, and the clamping size can be adjusted through the arranged clamping assembly; the four sets of sliding blocks can slide together, so that the distance between the sliding blocks can be freely adjusted to the needed size, the compatibility of the device is greatly improved, the number of adjusted angles is large, the clamping tightness is improved, and the stability of the device is improved.

The invention provides a method and a system for detecting inclination and eccentricity error separation of an optical mirror surface, and belongs to the technical field of optical detection. According to the method, a non-contact range finder is used for measuring height data of a mirror surface to be measured when the mirror surface rotates for a circle at two different calibers, a relational expression of height data change and inclination and eccentricity is established through a least square method, and accurate measurement and separation of inclination and eccentricity errors are achieved. The system comprises an air floating rotary table, a non-contact measuring head and test software, the rotary table rotates during measurement, the measuring head collects data, and the software processes and outputs a result. The method solves the problem of mutual conversion between inclination and eccentricity when a traditional method is used for measuring the aspherical mirror, improves the measurement precision and the adjustment efficiency, and is suitable for detection and adjustment of the high-precision aspherical mirror.

The invention discloses a 360-degree laser radar range finder, and the range finder comprises an optical outer cover which is of a polyhedral structure and is installed on a pedestal assembly, and the optical outer cover and the pedestal assembly form an internal installation cavity; the internal optical module is arranged in the internal mounting cavity and comprises a laser ranging module and a wireless power supply amp; the motor module and the laser ranging module are rotationally mounted on the wireless power supply amp; a motor module; a wireless power supply amp; the motor module is installed on the base assembly. The sealing connection position of the optical outer cover and the base assembly comprises a first rib position, a second rib position and a sealing ring, and the first rib position and the second rib position are oppositely arranged up and down and press the sealing ring up and down. According to the invention, accurate distance measurement, navigation and obstacle avoidance are realized, the system can be stably used, and related scenes such as underwater, high-pressure and low-pressure industrial construction laboratories, negative pressure areas caused by high flow velocity difference, negative pressure isolation wards in the medical field and other conventional scenes are involved.

This application relates to a rangefinder, aiming device, and shooting aid. The rangefinder includes: a housing for detachably fixing to a scope; and a power supply, control module, laser rangefinder module, visible laser designator, display module, and optical diopter adjustment system housed within the housing. The visible laser designator is coaxial with the laser rangefinder module and is used to indicate the position when the rangefinder module's aiming position coincides with the center of the scope's dividing plate. The image displayed by the display module is adjusted by the optical diopter adjustment system to suit the observation habits of different users and to make the rangefinder data visible within the eyepiece field of view of the scope. The rangefinder provided by this application allows users to use the scope normally according to their original usage habits, and can directly observe the rangefinder data within the original scope's eyepiece field of view without any modification or adjustment to the original scope. It is simple, convenient, and cost-effective.

The utility model discloses an optical axis adjusting device and an adjustable range finder, and relates to the field of instrument measurement, the optical axis adjusting device comprises a support, a spherical hinge support, a support block and an adjusting assembly, the spherical hinge support is matched with a first quadrant, and the support can make spherical hinge rotation; the supporting block is matched with the second quadrant of the bracket to form a gap between the second quadrant of the bracket and the shell; when pitching adjustment is conducted through the up-down adjuster, the support is adjusted in a swinging mode with the connecting line of the supporting block and the spherical hinge support as a rotating shaft. When the left-right adjuster rotates left and right for adjustment, the support swings transversely with the spherical hinge support as the center. A first elastic component in a second quadrant enables the supporting block to always contact with the bracket and the shell; the second elastic assembly in the third quadrant applies vertical elastic force and transverse elastic force to the support; a third elastic assembly of the fourth quadrant applies vertical elastic force to the fourth quadrant of the support, so that the support is returned when the up-down regulator and the left-right regulator return; a spherical hinge structure does not need to be arranged outside the support, and space occupation of the optical axis adjusting structure is reduced.