479 results about "Dual axis" patented technology

A device for inspection during the opening and closing of an umbrella, relating to the technical field of umbrella inspection. The device comprises a case (1); a raising / lowering mechanism (2) and a servo driven mechanism (7) are respectively mounted at the top of the case (1); dual-axis rotating mechanisms (3) are mounted on a raising / lowering member of the raising / lowering mechanism (2) and at the top of the raising / lowering mechanism (2); a clamping head (4) is fixedly connected to the movable end of the dual-axis rotating mechanism (3) located at the top of the raising / lowering mechanism (2); a pressing air cylinder (13) for fixing the top end of an umbrella is mounted inside the clamping head (4); a telescopic rod (5) is fixedly connected to the output end of the dual-axis rotating mechanism (3) located on the raising / lowering member. The top of the umbrella is fixed by means of the pressing air cylinder (13), the servo driven mechanism (7) and a two-level angle adjuster (6) are used to adjust the position and angle of an umbrella handle clamping mechanism (8), and by means of cooperation of the other dual-axis rotating mechanism (3) and the telescopic rod (5) as well as the other two-level angle adjuster (6), the position of a middle slot clamp (9) is determined, so that the angle of the umbrella can be changed to perform testing during opening and closing, and a plurality of industrial cameras (10, 12) can record states during the opening and closing of the umbrella.

According to the unmanned aerial vehicle image small target detection method and device based on biaxial feature interaction, four context awareness interaction stages (CAI Stage) are cascaded, and each stage comprises two context awareness interaction blocks (CAI Blocks). And each CAI Block realizes feature extraction through a biaxial parallel architecture, and performs feature interaction by adopting a key element fusion module (KEF Module) to finally form a detection network with a self-adaptive multi-scale perception capability. According to the CAI-DETR provided by the invention, through an innovative architecture design and a feature interaction mechanism, the constructed biaxial one-dimensional convolution architecture decouples feature learning in horizontal and vertical directions, and calculation redundancy is greatly reduced while the receptive field coverage capability is ensured. The lightweight design enables the network to be more focused on the extraction of the essential features of the target, and especially for the ubiquitous tiny target in the unmanned aerial vehicle image, the coupling relationship between the local texture and the overall contour of the tiny target is enhanced through an adaptive sampling strategy.

A dual axis slider hinge has a fixing base, two sliders, two holders, and a link unit. The fixing base has two sockets and a positioning hole, and each of the two sockets has two straight tracks. Each of the sliders has two lateral sliding grooves, a holder connecting portion, and an inner sliding slot. The sliders are respectively mounted in the sockets, and the lateral sliding grooves engage with the straight tracks. Each of the holders has a connecting plug and a combining portion, and the connecting plug is pivotably connected to the holder connecting portion. The link unit has two connecting portions and a rotating portion. Each of the connecting portions has a connecting pin. The connecting pins are movably mounted in the inner sliding slots respectively, thereby synchronizing the two holders via the link unit to flip simultaneously.

The invention provides a double-axis scanning type laser radar device, and relates to the technical field of laser radars. The laser radar device comprises a laser emitting unit, a reflecting unit, a receiving unit and a data processing unit, the laser emitting unit is used for generating and emitting a laser beam; the reflection unit is used for realizing independent deflection of the laser beam in the horizontal and vertical directions; and the receiving unit is used for receiving the echo signal and the reference signal which are reflected by the target object, performing coherent superposition on the reference signal and the echo signal and then transmitting the reference signal and the echo signal to the data processing unit for demodulation and analysis, thereby extracting the distance, shape and motion information of the target object. The laser radar device has the advantages of being high in scanning precision, wide in detection range, high in environmental adaptability and the like, and can keep high measurement precision and data processing efficiency under various complex environmental conditions.

The invention provides an omni-directional following type reversing support which comprises a supporting assembly, an adjusting assembly and a protection assembly, the supporting assembly is composed of a stand column, a transmission shaft is arranged on the side wall of the top of the stand column, the surface of the transmission shaft is movably sleeved with a sleeve, a linkage mechanism is arranged in the top end of the stand column, and the adjusting assembly is composed of a transverse plate and a photovoltaic plate. The bottom of the photovoltaic panel is connected with the transverse plate through a rotating frame, the rotating shaft is rotationally connected with the interior of the annular plate, the protection assembly is composed of a fixing base, a gear ring is arranged in the fixing base, and one end of the supporting plate is fixedly connected with a connecting gear. The angle of the photovoltaic panel is adjusted in a double-shaft adjusting mode, the omni-directional following function is achieved to improve the light conversion efficiency as much as possible, transmission with the adjacent reversing supports is achieved, synchronous control over the angles of the supports in the same row is achieved through connection of the sleeves, and synchronous control over the multiple supports is achieved; the driving mechanism can be used for driving the supporting plate to rotate and supporting the two sides of the photovoltaic panel, and the use strength of the reversing support is improved.

The invention discloses a low-coupling biaxial silicon micro-resonant accelerometer. The low-coupling biaxial silicon micro-resonant accelerometer comprises an upper-layer micro-accelerometer structure and a lower-layer glass substrate with a signal lead, the micro-accelerometer structure is composed of two separated mass blocks, two pairs of identical tuning fork resonators and eight identical primary amplification levers. The two separated mass blocks are fixed on the same group of anchor points through U-shaped beams in different directions and are respectively used for measuring the acceleration of X / Y axes, and the whole structure is in a symmetrical figure. The four tuning fork resonators are distributed in a central symmetry mode and used for detecting the acceleration of the X axis and the acceleration of the Y axis. The X-axis and the Y-axis adopt the separated mass blocks, the sensitive mass blocks of the X-axis and the Y-axis are not connected, complete decoupling of the two detection axes is achieved, the lever structure can effectively amplify inertia force generated by the mass blocks, the sensitivity of the accelerometer is improved, and high-precision double-axis acceleration measurement is easy to achieve.

The invention discloses a method and a device for measuring orthogonality of an orthogonal rotary shaft system, and belongs to the technical field of orthogonal rotary shaft system detection. The orthogonal rotary shaft system comprises a first rotary shaft system and a second rotary shaft system; the method comprises the following steps: carrying out axis inclination angle rotation error measurement and attitude fine adjustment by using a CCD (Charge Coupled Device) double-axis autocollimator, and a cubic reference prism and a double-sided optical flat which are respectively fixed with a first rotation shaft system and a second rotation shaft system; setting a reference cross line XY through the double-sided optical flat by using a second rotary shaft system; the cross curve of the reflected light beam of the cubic reference prism is overlapped with the reference cross curve XY by adjusting the mounting positions of the two rotary shaft systems; and rotating the first rotating shaft system, recording an angular deviation value and calculating an orthogonality value of the two rotating shaft systems. According to the invention, the reference drift error of mutual aiming of the two autocollimators is eliminated, the interference of the rotation error of the shaft system on orthogonality measurement is eliminated, and the precision and reliability of the orthogonality measurement of the shaft system are improved on the whole.

A portable information handling system supports a flexible OLED display film over housing portions rotationally coupled by a hinge by folding the OLED display film over the hinge. Hinge brackets that couple to the housing portions each have a helical member that extends into an associated helical guide of the hinge main body. Hinge bracket rotation translates through the helical guides for synchronized housing rotation. The hinge main body has first and second circular portions extending along its length to define first and second rotation axes about which the hinge brackets pivot so that the display film has space to fold in the closed position.

The invention provides a nonlinear elimination-based linear secondary tracking control method for a fast reflector. The method comprises the following steps of S1, establishing a biaxial depth coupling dynamic model structure according to dynamic characteristics of a piezoelectric driving fast reflector and a deep learning technology; s2, training a biaxial depth coupling dynamic model through input and output data; s3, designing a rolling horizon optimized secondary tracking controller based on the biaxial depth coupling dynamics model; s4, based on the structure of the biaxial depth coupling dynamic model, designing an approximate optimal secondary tracking controller based on nonlinear compensation; and high-speed and high-precision tracking control is realized. The method mainly aims at the control problem caused by nonlinear dynamic and double-axis coupling of the fast reflecting mirror driven by the piezoelectric actuator, and can overcome the problem of precision reduction caused by different tracks of double axes of the fast reflecting mirror.

The invention relates to the technical field of pipeline welding, and discloses a thick-wall pipeline all-position laser automatic welding device and a matched welding method.The thick-wall pipeline all-position laser automatic welding device comprises a supporting base which is of a device foundation supporting structure, a first lifting table and a second lifting table are installed on the upper end face of the supporting base, and a closed-loop alloy steel rail is installed at the upper end of the first lifting table; and the closed-loop alloy steel track is a welding walking path of the laser welding equipment. According to the full-position automatic laser welding device for the thick-wall pipeline and the matched welding method of the full-position automatic laser welding device, precise adaptation is achieved through cooperation of a laser vision sensor and a multi-dimensional adjusting mechanism, the laser vision sensor collects weld joint contour data in real time, and when deviation is detected, a control system drives a longitudinal telescopic table and a double-shaft angle adjusting frame; the laser welding device is subjected to three-axis position adjustment and double-axis angle compensation, when the ovality of the pipeline causes deviation of a welding seam, the first longitudinal telescopic table can move in the direction perpendicular to the axis of the pipeline, and the double-axis angle adjusting frame synchronously adjusts the angle of a welding head.

The invention relates to the technical field of performance lighting equipment, in particular to a double-shaft omni-directional steering unmanned aerial vehicle laser lamp and a control method thereof. The unmanned aerial vehicle laser lamp structure comprises a transmission device and a motor, the unmanned aerial vehicle laser lamp structure can rotate by 360 degrees along the X axis and the Y axis, magnetic fluid sealing rings are adopted for packaging, high waterproofness can be achieved, the unmanned aerial vehicle laser lamp is hung below a four-axis or six-axis unmanned aerial vehicle, a space light beam system capable of freely rotating is formed, all-dimensional irradiation is achieved, and the rich three-dimensional light beam effect is created. In addition, the flight control system of the unmanned aerial vehicle can be compatible with a small unmanned aerial vehicle performance control system, so that the unmanned aerial vehicle can be accurately integrated with other unmanned aerial vehicles and cooperate with formation performance. The visual level of unmanned aerial vehicle light show is improved, compared with traditional unmanned aerial vehicle laser equipment, the system can flexibly adjust the height and the angle, the defect that existing unmanned aerial vehicle air show lacks space light beams is effectively overcome, and a more dynamic and immersive light and shadow effect can be constructed in the air in combination with fine control.

Various optical systems for use in a light pulse atomic interferometer (LPAI)-based one-, two-, or three-axis accelerometer or gyroscope are disclosed. As an LPAI accelerometer or gyroscope may employ many different laser beams to implement the LPAI functionality, ways of combining these different laser beams to thereby simplify the optical systems are desired. The cooling laser beam portion of the optical system may be simplified using one or more reflective grating chips. The Raman laser beam optics may be simplified using combiners and separators. For LPAI systems sensing along three axes, various optical switching schemes may be employed, including ones that generate variable data-rates with a primary sensing axis having a higher data-rate than the secondary sensing axes. Further, by combining various laser beams in a time-multiplexed manner, the number of optical fiber tethers to a sensor head may be reduced.

The invention discloses a double-Y-axis 360-degree surrounding type laser cutting machine which comprises a movable base, a movable cutting device is arranged at the upper end of the movable base, a cooling device is arranged on one side of the movable cutting device, a feeding clamping device is arranged on one side of the cooling device, a discharging device is arranged on the other side of the movable cutting device, and the movable base comprises a supporting framework. First sliding rails are arranged at the upper ends of the two sides of the supporting framework, first racks are arranged at the ends, close to the first sliding rails, of the inner side of the upper end of the supporting framework, and multiple supporting feet are evenly arranged at the bottom of the supporting framework at equal intervals. The double-Y-axis 360-degree rotating laser cutting machine has the beneficial effects that the double-Y-axis 360-degree rotating laser cutting machine can conduct multi-angle cutting around an object under the condition that the position of a workpiece is not changed, materials of different shapes and sizes can be adapted to when 360-degree surrounding cutting is conducted, when four-face or multi-face cutting is conducted, a double-Y-axis laser head can be lifted and dropped more quickly, and the cutting efficiency is improved. And the speed is higher when the cutting is carried out after each time of returning, so that more working hours are shortened.

The invention provides a synchronous control method based on biaxial mass damping difference mapping as unbalanced output, and relates to the technical field of automatic control theories and motor control, the method is mainly applied to a moving beam type gantry motion platform, and a dynamic characteristic model of biaxial mass damping is adopted to obtain the unbalanced output based on the biaxial mass damping difference mapping. And calculating unbalanced forces which need to be output by the two shafts respectively for inhibiting the synchronization error, and designing one-to-one mapping parameters of the controller according to the output unbalanced forces of the two shafts and realizing self-adaptive adjustment. The method does not need to decouple biaxial characteristics (the decoupling calculation amount is relatively large), does not need to collect asynchronous errors as control quantities in real time, carries out theoretical analysis directly aiming at biaxial dynamic characteristic inconsistency, carries out controller design and real-time adjustment according to the theoretical analysis, is clear and clear in physical significance and easy to realize, and is suitable for large-scale popularization and application. And one-to-one mapping of controller parameters can be directly carried out according to different mechanical characteristics, and active controller design is realized.

The utility model provides a laser sensor mounting support capable of adjusting the angle of double shafts, and particularly relates to the technical field of supports, comprising a mounting plate, a first adjusting seat which is connected with the mounting plate and can rotate, and a second adjusting seat which is arranged in the first adjusting seat and can rotate; by adopting the structural design of double-shaft linkage angle adjustment, angle adjustment in two mutually vertical axial directions can be realized, so that the laser sensor can realize accurate positioning and measurement in a wider application scene, the application effect of the laser sensor in the fields of industrial automation, robot navigation, three-dimensional scanning and the like is improved, and meanwhile, the laser sensor can be applied to the fields of industrial automation, robot navigation, three-dimensional scanning and the like. Due to the flexible adjustability of the support structure, the difficulty and the cost of installation and debugging are reduced.

The invention relates to a disassembly-free online self-calibration double-shaft laser gyroscope strapdown inertial navigation implementation method, which designs a modulation working mode based on double-shaft rotation, according to the design, a double-shaft rotating mechanism is additionally arranged on an inertial navigation unit, and the inertial navigation unit respectively rotates around three gyroscope sensitive shafts by utilizing an outer horizontal shaft and an inner azimuth shaft; exciting a navigation error generated by a scale factor error and an installation error of the laser gyroscope; sensitive shafts of the three accelerometers are enabled to point to the sky respectively, and navigation errors generated by scale factor errors, installation errors and zero positions of the accelerometers are excited; and then obtaining the navigation errors by taking external reference information as a benchmark, establishing an error relation model between the navigation errors and parameters needing to be calibrated, and completing estimation of each calibration parameter by adopting a Kalman filtering algorithm, so as to realize disassembly-free online self-calibration of the double-shaft laser gyroscope strapdown inertial navigation.

The invention discloses a double-shaft tracking device, a double-shaft tracking support and a photovoltaic street lamp, the double-shaft tracking device comprises a base bottom plate, a pitch angle adjusting assembly, an azimuth angle adjusting assembly and a rotation supporting assembly, the pitch angle adjusting assembly comprises a first driving mechanism, a first turbine, a first connecting rod shaft and a gear transmission mechanism; the azimuth angle adjusting assembly comprises a second driving mechanism, a second turbine and a second connecting rod shaft; the first driving mechanism is used for driving the first turbine to rotate, the first turbine is connected with one end of the first connecting rod shaft, the other end of the first connecting rod shaft is connected with the gear transmission mechanism, and the gear transmission mechanism is connected with the rotary supporting assembly; the second driving mechanism is used for driving the second turbine to rotate, the second turbine is connected with one end of the second connecting rod shaft, and the other end of the second connecting rod shaft is connected with the rotating supporting assembly; the first connecting rod shaft penetrates through the second connecting rod shaft; the device is compact in structure in the height direction and high in space utilization rate.

The utility model discloses a color three-dimensional optical scanner which comprises a lower base, four corners of the upper surface of the lower base are fixedly provided with secondary seats through supporting columns, a servo motor is arranged between the lower base and the secondary seats, the secondary seats are fixedly provided with a cross-shaped outer cylinder, the interior of the cross-shaped outer cylinder is of a hollow-out cross-shaped structure, and the cross-shaped outer cylinder is of a hollow-out cross-shaped structure. A threaded screw rod is arranged in the center of the interior of the cross-shaped outer cylinder, and the bottom end of the threaded screw rod is fixedly connected with an output shaft of the servo motor, and the height of the optical scanner in the Y-axis direction can be freely adjusted through a threaded transmission structure. The working extension length of the optical scanner on the X axis can be freely adjusted through the movable inner insertion rod, through the cooperative use of the two structures, the comprehensive free linear adjustment work on the X axis, the Y axis and the two-dimensional plane biaxial direction of the optical scanner in the installation state can be completed, and the optical scanner can be suitable for different working environments and working requirements; the structure is convenient to adjust and high in adjusting flexibility.

The invention relates to the technical field of aerospace equipment detection, and discloses an intelligent detection device and method for defects of the inner wall of a complex porous shell. The double-shaft rotating platform is arranged on the base, a hydraulic shell clamping tool is arranged on the double-shaft rotating platform, and the double-shaft rotating platform can drive the hydraulic shell clamping tool to rotate in the horizontal direction and the vertical direction; a precise ball screw guide rail is arranged at the moving end of the six-degree-of-freedom mechanical arm; the detection assembly is slidably connected with the precision ball screw guide rail, and the end of the detection assembly is provided with a camera. Through the synergistic effect of the double-shaft rotating platform and the six-degree-of-freedom mechanical arm, the detection assembly can correspond to any hole channel of the to-be-detected hydraulic shell, and then comprehensive detection of the hole channel of the to-be-detected hydraulic shell is achieved; meanwhile, the precise ball screw guide rail is used for controlling the detection assembly to precisely feed along a straight line, so that precise image acquisition can be carried out on a complex pore channel, and the comprehensiveness and accuracy of pore channel defect identification are improved.

The invention relates to the technical field of optical three-dimensional measurement and metering, and discloses a single-camera three-dimensional coordinate measurement method and system based on full-field distance measurement, and the method comprises the following steps: S1, building a calibration field containing a control point, shooting an image of the calibration field through a monocular camera, extracting the image coordinate of the control point, carrying out the camera calibration, and obtaining a calibration field; obtaining internal parameters and external orientation parameters of the camera; and S2, controlling the laser range finder to aim at the control point in the calibration field through the non-orthogonal double-axis turntable. Submillimeter-level high-precision measurement can still be realized under the condition of a short baseline, and the problems that the precision in the depth direction is insufficient, the baseline requirement is long, parameters are easy to drift and the like in traditional stereoscopic vision measurement are effectively solved. By introducing a non-orthogonal double-shaft turntable and a visual guidance laser aiming mechanism, autonomous, rapid and accurate measurement of multiple measurement points in a large field of view is realized, and the automation degree and reliability of measurement in a complex environment are remarkably improved.

The invention discloses an intelligent laser collimation system, which realizes automatic collimation of a laser beam through cooperative control of double reflectors, a high-precision electric actuator and an SAC reinforcement learning algorithm, adopts a cage type integrated structure design of double reflectors and a coaxial connecting rod, realizes rigid constraint and rapid alignment of a light path, and improves the accuracy of laser collimation. A reflector double-axis precise automatic adjusting mechanism based on a miniature electric actuator is developed, an SAC reinforcement learning algorithm is applied to an optical collimation system for the first time, a dynamic reward function design based on light spot offset is proposed, a double-reflector cooperative control model, a light spot offset real-time feedback mechanism and a self-adaptive parameter adjusting strategy are creatively adopted, and the optical collimation system is optimized. Alignment and collimation of laser beams are achieved, a geometric parametric modeling method based on a reflector is developed, related offset can be obtained through theoretical calculation without additional detection through geometric parametric modeling, the adjustment precision is improved to the micron order, and the operation complexity is remarkably reduced.

Flexure structures, assemblies incorporating flexure structures, and methods utilizing flexure structures to support objects are provided. A flexure structure as disclosed can be formed monolithically from a single piece of material, includes a center aperture to accommodate at least portions of other elements or structures, allows for rotation of a supported object in two axes with very little translational movement of the supported object, provides mounting fixtures on opposite sides of the flexure structure, and has a relatively high load capacity. Flexure structures include base mounts that can each be joined to a first side of an interconnect structure by flexure blades, and object mounts that are each joined to a second side of the interconnect structure by flexure blades. The flexure structure can be a generally annular structure, with the center aperture formed or defined at least in part by the interconnect structure.

The invention concerns an apparatus for scanning the optical properties of materials using a stationary sample stage and a dual-axis rotational system. The apparatus includes motors for azimuthal and polar rotation, supporting an optical system with adjustable lenses and filters to collect data from multiple angles. This design is particularly advantageous for photo-excited materials using linearly polarized sources, as it maintains static pump polarization, eliminating the need for additional motors or optical elements to align the pump with the sample's rotation. This avoids complications with halfwave plates and broadband retarders, which may not preserve linear polarization across all wavelengths. The modular system accommodates various detectors, ensuring versatility while enabling precise, high-resolution spectral imaging. The stationary sample stage prevents alignment issues and distortion, providing consistent and accurate measurements of materials' optical properties across a range of experimental setups.

The utility model provides a rapid reflector optical axis verification device, and relates to the technical field of optical machine installation and adjustment, and the device comprises an out-cabin measurement assembly disposed outside a high-low temperature box, and an in-cabin test assembly disposed in the high-low temperature box. The extravehicular measuring assembly comprises a lifting platform, and a first autocollimator and a second autocollimator are adjustably arranged on the lifting platform; the in-cabin test assembly comprises a double-shaft rotary table and a quick reflecting mirror fixing assembly which is detachably arranged; the fast reflecting mirror fixing assembly comprises a fast reflecting mirror adapter for mounting a fast reflecting mirror and a microcrystal for forming a reference; the first autocollimator is used for being aligned with the fast reflecting mirror, and the second autocollimator is used for being aligned with the microcrystal. Through the combination of the in-cabin test assembly and the out-cabin measurement assembly, the device can quantitatively measure the optical axis change conditions of the fast reflecting mirror in high and low temperature environments, can measure the optical axis change conditions of fast reflecting mirrors of different specifications in high and low temperature environments through matching with different adapters, and has good versatility.

The invention relates to the technical field of spacecrafts, in particular to a pointing and vibration isolation integrated flexible parallel platform which comprises a fixed platform assembly, a movable platform assembly and six voice coil motor actuator assemblies. The other end of each voice coil motor actuator assembly is fixedly connected to the movable platform through a hinge base, the voice coil motor actuator assemblies adopt flexible double-shaft hinges and flexible three-shaft hinges to replace traditional rigid rotating hinges, and each voice coil motor actuator assembly comprises a grating ruler system and a force sensor. Through closed-loop feedback of the flexible double-shaft hinge, the flexible three-shaft hinge, the voice coil motor and the three sensors, six-degree-of-freedom micro-vibration isolation and high-precision tracking pointing are achieved, the influence of a traditional hinge rotation gap on micro-vibration isolation and high-precision pointing is overcome, and the pointing precision of the flexible parallel platform is improved.

The invention discloses a photovoltaic power generation double-shaft tracking device which comprises a base, a stand column rotationally arranged on the base, a cross beam rotationally arranged on the stand column and a mounting frame arranged on the cross beam, and a solar cell panel is arranged on the mounting frame; a cleaning mechanism is arranged on the mounting frame and comprises a pair of racks, a dust collection barrel, a pair of rotating shafts, a supporting plate, a water storage barrel, a plurality of dust collection pipe sets, a plurality of water spraying pipe sets and a plurality of cleaning brushes. According to the photovoltaic power generation double-shaft tracking device, the outer surface of the solar cell panel can be efficiently cleaned, meanwhile, the solar cell panel cannot be scratched and damaged, and it is guaranteed that sunlight is fully absorbed by the solar cell panel.

The invention discloses a granular material micromechanics test platform and method based on an optical measurement technology, the test platform is provided with a polarized light source, a polarizer, a biaxial loading device, an LED light source, an analyzer and an image acquisition system from left to right in sequence, and the optical platform is also provided with a control system. And the control system is electrically connected with the biaxial loading device. The granular material micromechanics test platform is based on an optical measurement technology, shearing of a two-dimensional dense particle system is achieved through movement of the adjustable biaxial loading device, switching between a polarized light field and an unpolarized light field can be achieved by rotating the polarization analyzer, so that test images under different light fields are obtained, and the test precision is improved. A photoelastic technology and a digital image related technology are combined to carry out contact force and dynamics analysis; according to the granular material micromechanics test platform, contact force and dynamic information of the granular material can be visually and synchronously obtained through a high-precision and high-acquisition-frequency image acquisition technology without contact.

The invention relates to the technical field of dredging devices, in particular to a river channel dredging device and method for hydraulic engineering. Comprising a fixing frame, the fixing frame is provided with a multi-beam depth finder, a microcontroller and an angle-adjustable carrying frame, the carrying frame is provided with a double-shaft motion platform, the double-shaft motion platform is connected with a desilting frame capable of synchronously horizontally and vertically reciprocating, and the microcontroller is in data connection with the multi-beam depth finder and adjusts the reciprocating frequency and the reciprocating stroke of the desilting frame. A bidirectional buffering anti-collision mechanism is installed on the desilting frame and connected with a positioning seat. The device has the advantages that through linkage of the multi-beam depth finder, the microcontroller and the double-axis motion platform, the problem that a traditional device lacks real-time monitoring and dynamic adjustment is solved, the multi-beam depth finder captures sludge thickness distribution, river bottom terrain and obstacle positions in real time, and after data is directly transmitted to the microcontroller, real-time monitoring and dynamic adjustment are achieved. And the horizontal and vertical reciprocating frequency and stroke of the desilting frame can be accurately adjusted.

The invention discloses an intelligent assembling method of a glass reference mirror, which utilizes an intelligent mechanical arm to complete the assembling of the glass reference mirror, utilizes a set of six-degree-of-freedom intelligent mechanical arm to complete the accurate position control of the glass reference mirror, and utilizes two sets of double-shaft photoelectric autocollimators to measure the orientation of the reference mirror. The position of the mechanical arm is adjusted through a central control closed-loop algorithm, and the glued surface of the reference mirror is aligned with the reference mirror mounting surface of the inertial attitude sensor, so that the reading of a reference collimator is the lowest, namely the precision is the highest, and the actual measurement precision can be within 15 seconds of arc. Meanwhile, by using the system, the thickness of the epoxy adhesive layer can be controlled through a known reference surface, and the temperature cycle of-35 DEG C to 70 DEG C can be resisted when the thickness of the adhesive film is 0.20 mm to 0.60 mm through test verification.