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59results about How to "Fast alignment" patented technology

Transfer alignment method capable of estimating and compensating wing deflection deformation

The invention discloses a transfer alignment method capable of estimating and compensating wing deflection deformation. The method comprises steps as follows: binding navigation information, namely, the speed, the posture and the position, of a main inertial navigation system to an auxiliary inertial navigation system to finish coarse alignment; constructing the observed quantity by using speed and posture information sent by the main inertial navigation system to the auxiliary inertial navigation system at the fixed frequency as well as speed and posture information of the auxiliary inertial navigation system; introducing correlated variables of a wing deflection deformation model into a state equation, and establishing a system state equation and an observation equation by using a measurement misalignment angle and speed matching method; performing iterative solution by using conventional Kalman filtering, estimating information such as the posture misalignment angle, the speed error and the like of the auxiliary inertial navigation system, and correcting the speed and the posture of the auxiliary inertial navigation system with the information to obtain initial navigation information of the auxiliary inertial navigation system to finish transfer alignment. The transfer alignment is realized with the measurement misalignment angle and speed matching method, and the method has the advantages that the method is small in calculated amount, simple in form, easy to understand and the like.
Owner:NANJING UNIV OF SCI & TECH

Antenna alignment method and device

The invention belongs to the technical field of communication, and provides an antenna alignment method and device, and the method comprises the steps: obtaining first longitude and latitude information and attitude information of a local communication terminal antenna; acquiring second longitude and latitude information of a target communication terminal antenna; calculating a first alignment angle according to the first longitude and latitude information and the second longitude and latitude information; controlling the local communication terminal antenna to rotate to a first azimuth according to the attitude information and the first alignment angle; determining azimuth information of the strongest signal through fine adjustment according to the first azimuth; and aligning the local communication terminal antenna with the target communication terminal antenna according to the azimuth information of the strongest signal. According to the embodiment of the invention, the antenna canbe automatically rotated to the first azimuth, then the azimuth information of the strongest signal is determined, and the local communication terminal antenna and the target communication terminal antenna are aligned according to the azimuth information of the strongest signal, so that the alignment speed is high, the alignment precision is high, the manual participation is less, and the antennaalignment efficiency is effectively improved.
Owner:SHENZHEN TONGCHUANG COMM

Line-scan digital camera adjusting device

The invention relates to a line-scan digital camera adjusting device. The device comprises a first support, a second support and an adjuster, wherein the first support is used for installed either a line-scan digital camera or a linear light source, and the second support is used for installing the other one of the line-scan digital camera and the linear light source; the first support is connected to the adjuster, the adjuster can rotate and transversely move the first support and comprises a rotation adjusting component and a transverse movement adjusting component, the rotation adjusting component can drive the first support to rotate, and the transverse movement adjusting component can drive the first support to move transversely; when the line-scan digital camera and the linear light source are installed on the first support and the second support, the longitudinal axis of the line-scan digital camera and the longitudinal axis of the linear light source are located in the same plane. For a linear type photographing device, alignment of the shooting line of the line-scan digital camera and light of the linear light source is achieved through the adjuster, the alignment process is simple, the alignment speed is high, and the alignment precision is high.
Owner:BEIJING UNIV OF TECH +1

LED lamp installation device based on gravity stabilization

The invention discloses an LED lamp installation device based on gravity stabilization. The LED lamp installation device structurally comprises a telescopic rod, a telescopic rod sleeve, the anti-skidsleeve, the fixator connecting seat and a bulb fixing structure, the LED lamp mounting device is combined with the bulb converter through the fixed grabbing stabilizer, when the LED lamp bulb is picked and installed, the operator tilts the handheld mounting device, the bulb fixing claw and the ground are kept in a vertical state, an operator can quickly align the bulb on the bulb fixing claw withthe lamp holder, the situation that a worker needs to stand below the lamp holder by a vertical handheld mounting device is avoided, the situation that the lamp holder is installed at the position ofthe lamp holder is greatly observed, neck fatigue caused by installation of the LED lamp is reduced, and meanwhile, the alignment speed is accelerated, the situation that the bulb is collided and damaged due to the fact that the arm pain shakes due to long-time hand-held is avoided, the new LED bulb can be directly installed after the old bulb is taken down through the bulb converter, so that theinstallation operation time is shortened, and the working efficiency of LED lamp installation is accelerated.
Owner:福建惠安新然石材有限公司

Mobile CT intelligent scanning positioning system, positioning method and storage medium

The invention discloses a mobile CT intelligent scanning positioning system, a positioning method and a storage medium, the system comprises an image acquisition module, a distance detection module, a geometric calibration module, an intelligent analysis module, a motion control module and a projection module, the geometric calibration module is used for calculating a coordinate transformation relationship among the projection module, the image acquisition module and a mobile CT machine; the intelligent analysis module is used for carrying out intelligent analysis on the image acquired by the image acquisition module and acquiring a human body template part area and human body center line information; the projection module is used for projecting the contour of the to-be-scanned area and an auxiliary positioning line on the sickbed according to the information of the to-be-scanned area. The scanning area is positioned through auxiliary vision, an operator is guided to move the examination bed to be aligned with the scanning rack, or the scanning rack is guided to be aligned with the examination bed to complete positioning, a target scanning area can be quickly scanned to obtain a CT image without scanning a positioning image, and time and power consumption for scanning the positioning image are saved.
Owner:NANJING ANKE MEDICAL TECH CO LTD

Novel cantilever steel scaffold and construction process thereof

The invention discloses a novel cantilever steel scaffold and a construction process thereof. The novel cantilever steel scaffold comprises an upper floor, a lower floor, a positioning and supporting mechanism, a cantilever reinforcing mechanism and a scaffold mechanism; the positioning and supporting mechanism comprises embedded positioning pieces, four sets of I-shaped steel, L-shaped supporting plates and sliding sleeve pieces; the top of the upper floor and the top of the lower floor are each provide width two sets of I-shaped steel; and the embedded positioning pieces are embedded in the two ends of one side of the top of the interior of the upper floor and the two ends of one side of the top of the interior of the lower floor. Through mutual cooperation of the sliding sleeve pieces and the L-shaped supporting plates, prefabricated pieces and the I-shaped steel can be welded into a whole in advance, so that the binding faces for supporting and positioning of external walls and internal walls of the upper floor and the lower floor are reinforced through connection of the sliding sleeve pieces and the L-shaped supporting plates, a bidirectional supporting system is formed between the structure and the walls, and the load and stress strength of a scaffold body above the I-shaped steel are greatly enhanced.
Owner:THE SIXTH CONSTR CO LTD OF CHINA NAT CHEM ENG

SINSDVL alignment correction method and system, medium and equipment

The invention belongs to the technical field of navigation systems, and discloses an SINSDVL alignment correction method and system, a medium and equipment, and the SINSDVL alignment correction method comprises the steps: constructing a reference speed and a DVL output speed into two point sets, and converting a calibration problem into a Wahba problem; introducing a particle swarm algorithm into an error estimation problem, and establishing an estimation model based on the particle swarm algorithm; and establishing a particle swarm algorithm fitness function according to the installation error and the scale factor error between the SINS and the DVL sensor, estimating a constant error matrix, and further estimating a scale factor and an installation misalignment angle between the SINS and the DVL sensor. Simulation experiment and semi-physical experiment results show that the correction method can quickly and accurately estimate the scale factor and the installation misalignment angle between the SINS and the DVL sensor, so that the integrated navigation precision is greatly improved, the carrier does not need to do special motion or uniform-speed motion, and the coorection method is simple and high in alignment speed.
Owner:NAVAL UNIV OF ENG PLA

Novel vacuum suction cup lifting appliance

The invention relates to the technical field of carrying equipment, and discloses a novel vacuum suction cup lifting appliance aiming at the defect that a traditional suction cup lifting appliance cannot realize smooth separation. The novel vacuum suction cup lifting appliance comprises a rack connected with a crown block; the rack comprises a main beam; at least one group of vacuum suction cup devices and at least one group of separation suction cup devices are arranged in the length direction of the main beam through cross beam hanging pieces; each group of vacuum suction cup devices comprises at least two common suction cup structures which are uniformly distributed in the width direction of the main beam; each group of separation suction cup devices comprises at least two separation suction cup structures which are uniformly distributed in the width direction of the main beam; each common suction cup structure and each separation suction cup structure are each provided with a suction cup lifting device capable of independently controlling the suction cups to move up and down; and the separation suction cup devices are arranged close to the end of the main beam. The arrangement of the separation suction cup devices is added; meanwhile, each suction cup structure is independently provided with one suction cup lifting device; separation operation of a plurality of overlapped plates can be rapidly achieved; and the carrying operation efficiency is improved.
Owner:湖南天桥嘉成智能科技有限公司

Panoramic unmanned aerial vehicle image splicing method

The invention discloses a panoramic unmanned aerial vehicle image splicing method. The method comprises the steps of image input, image feature extraction, image feature matching, image matching, image splicing and spliced image output. The image input is an image shot by a plurality of unmanned aerial vehicles at the same time, and the image feature extraction utilizes an improved geometric algebra-scale invariant feature conversion algorithm an adaptive threshold algorithm is adopted for image feature matching, and a homography estimation algorithm which is robust through random sampling consistency is adopted for image matching. According to the method, an optimized geometric algebra scale invariant feature conversion algorithm is adopted to realize rapid feature extraction and featurematching; The limitation problems of large calculation amount and high splicing time cost are solved by applying a self-adaptive threshold method through large feature point extraction and splicing work; A random sample consistency method is adopted to estimate image transformation parameters, and a solution with the best consistency with data is determined. According to the image splicing method,the alignment speed of the images is greatly increased, and a satisfactory image splicing result is generated.
Owner:STATE GRID HENAN ELECTRIC POWER COMPANY ZHENGZHOU POWER SUPPLY +2

Self-sealing manhole cover plate dismounting tool for power station container equipment

The invention belongs to the technical field of mechanical design and particularly relates to a self-sealing manhole cover plate dismounting tool for power station container equipment The self-sealingmanhole cover plate dismounting tool comprises manhole flange mounting bases, a lifting lead screw, an overturning lead screw, a supporting pipe, a sliding supporting base and a manhole cover plate mounting base; the manhole flange mounting bases are fixed to a high-pressure heater manhole flange; the lifting lead screw is mounted in a sleeve of the manhole flange mounting base; the lifting leadscrew is used for adjusting the positions of a tool and a manhole cover plate in the vertical direction; the supporting pipe is mounted in a horizontal sleeve of the sliding supporting base; the overturning lead screw is mounted in the supporting pipe; the bottom end of the supporting pipe and the bottom end of the overturning lead screw are fixed into two holes of the manhole cover plate mountingbase through bolts respectively; and the manhole cover plate mounting base is fixed to the manhole cover plate through screws. According to the self-sealing manhole cover plate dismounting tool for the power station container equipment, the field work efficiency can be improved, and the safety risk of the operation industry is reduced.
Owner:JIANGSU NUCLEAR POWER CORP

Directional antenna alignment system and method for wireless communication system of stacker-reclaimer

The invention discloses a directional antenna alignment system and method for a wireless communication system of a stacker-reclaimer, and relates to the field of Ethernet communication. The directional antenna alignment system for the wireless communication system of the stacker-reclaimer comprises an antenna support, a ground calibration platform, a bidirectional vertical laser beam projection component, a perpendicularity measuring component and a reflector alignment assembly, wherein the antenna support is used for fixing a directional antenna at the appropriate position of the stacker-reclaimer and the ground; the ground calibration platform is used for providing a ground benchmark reference; the bidirectional vertical laser beam projection component is used for projecting bidirectional laser beams which are perpendicular to each other to form laser surfaces which are perpendicular to each other; the perpendicularity measuring component is used for adjusting the directional antennaplane to be perpendicular to the horizontal plane; and the reflector alignment assembly is used for displaying a laser projection line, enhancing a visual effect of the bottom edge of the directionalantenna plane and prolonging the bottom edge line of the directional antenna plane to improve the alignment precision. According to the technical scheme, accurate alignment of the directional antennais achieved, and the alignment method has the advantages of being high in alignment accuracy, simple in operation procedure, low in cost and easy to master by the field maintenance personnel.
Owner:BEIJING DEBAI LITAI TECH

Novel ring-on-ring biaxial bending strength test clamp and positioning cover thereof

The invention discloses a novel ring-on-ring biaxial bending strength test clamp and a positioning cover thereof. A containing cavity is formed in the bottom of the positioning cover, and the size ofthe containing cavity corresponds to a test sample; an installing mechanism is arranged at the bottom of the positioning cover; a channel is formed in the top of the positioning cover, and the size ofthe channel corresponds to the size of a loading ring installing part; the channel position is designed as follows: when the positioning cover is installed on a supporting ring installing part through the installing mechanism, the middle shaft of a loading ring is overlapped with the middle shaft of a supporting ring; the position of the containing cavity is designed as follows: when the positioning cover is installed on the supporting ring installing part through the installing mechanism, and the middle shaft of the containing cavity is overlapped with the middle shaft of the supporting ring. The clamp comprises the positioning cover, the supporting ring, the supporting ring installing part, the loading ring and the loading ring installing part. According to the positioning cover in theinvention, the middle shafts of the loading ring, the supporting ring and the test sample can be aligned rapidly and accurately, the test efficiency and the accuracy rate of the test result are improved; the clamp can be used for storing sample fragments and preventing the sample fragments from being sputtered.
Owner:SICHUAN UNIV

A fan blade installation device for wind power generators using the principle of connecting rods

The invention relates to the field of new energy technology, and discloses a fan blade installation device for a wind power generator using the principle of a connecting rod, which includes a fixing seat, and a wheel hub installation groove and a fan blade installation groove are opened inside the fixing seat. The outside of the hub installation groove is fixedly connected with a hub clamping mechanism, the bottom of the fan blade installation groove is provided with a movable chute, and the inside of the fan blade installation groove is slidably connected with two fan blade fixing mechanisms. A connecting rod is fixedly connected between the leaf fixing mechanism, the first air pressure rod is fixedly connected to the outside of the blade fixing mechanism, the first air pressure cylinder is fixedly connected to the outside of the first air pressure rod, and the inside of the fixing seat There is a second pneumatic cylinder fixedly connected, through the cooperation of the hub installation groove and the fan blade installation groove, the positional relationship between the fan blade and the hub can be determined, the adjustment process can be reduced, the alignment time can be reduced, and the working efficiency of fan blade installation can be increased. .
Owner:冯忠贤
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