161results about How to "Solve the tilt" patented technology

An automatic balance regulating system and method of a hanging scaffold for vertical shaft construction is particularly suitable for a winch control system under control of PLC (programmable logic controller) and with variable frequency and regulable speed. The automatic balance regulating system comprises tension sensors arranged on suspension steel wire ropes, an attitude angle sensor installed on the hanging scaffold, a signal acquisition card and a PLC controller which is arranged in a winder chamber; PLC controller acquires signal of attitude angle of the hanging scaffold and signal of the tension of the steel ropes in real time through the attitude angle sensor and the tension sensors respectively, calculates length difference between the length of each of the four steel ropes and the average length thereof, as well as tension difference between the tension of each of the four steel ropes and the average tension thereof, then calculates regulating variables of rotating speed of four winches according to principle that length of each of the four steel ropes is closer to the average length at the same time, and tension of each of the four steel ropes is closer to the average tension at the same time, and furthermore drives the winches to regulate. According to the invention, the automatic balance regulating system can automatically regulate the hanging scaffold from an inclined pose to a horizontal state, and the distribution of tension of steel ropes from a non-uniform state to a balanced state.

The invention relates to an intelligent multifunctional three-freedom-degree cloud deck. The intelligent multifunctional three-freedom-degree cloud deck comprises a base and a camera stand, wherein the base is rotationally provided with a horizontal rotating disk provided with a first rotary motor, a second pitching motor and a third rotary motor; the first rotary motor is in transmission connection with the base through a first speed reducer, the second pitching motor is in transmission connection with a pitching shell through a second speed reducer, the third rotary motor is in transmission connection with an externally-connected flange through a third speed reducer, and the externally-connected flange is rotationally arranged on the pitching shell; the externally-connected flange is fixedly provided with the camera stand. The intelligent multifunctional three-freedom-degree cloud deck not only has all functions of a traditional two-freedom-degree electronic cloud deck, but also can perform 360-degree shooting on an object along the optical axis of a camera through rotation at the third freedom degree of the cloud deck, solves the problem that a shot image is inclined or inverted relative to a displayer or the human eyes sometimes, and improves multifunctionality and the intelligence degree. The intelligent multifunctional three-freedom-degree cloud deck is compact in structure and stable in operation, cameras with different sizes can be connected with the externally-connection flange by arranging different camera stands, and an application range is wide.

The invention relates to the field of computer visions, and proposes a face recognition method based on deep learning in a monitoring environment. The method comprises the following steps: building aface feature database, and performing feature extraction and feature comparison on faces in a video, thus face detection and face recognition are achieved based on an MTCNN network and a Sphereface network respectively; and by adding affine transformation, increasing the diversity of a data set, network clipping, network sparsification and layer-by-layer quantization, the problems of low recognition accuracy of a traditional face recognition method, differences in recognition accuracy between East and West faces, and excessive bandwidth required for the face recognition technology based on deep learning are mainly solved. Experiments show that the face recognition method proposed by the invention can be used in the monitoring environment and has higher recognition accuracy.

The invention provides a construction method for new pipe connection and original pipe plugging in large-scale sewage pipeline relocation. The construction method comprises the following steps: firstly, a new pipe receiving well is constructed beside an existing working well adjacent to the original sewage pipe, and the shaft wall of the existing working well is sawn, so that the new pipe receiving well is communicated with the existing working well; and then the original sewage pipe is temporarily plugged by adopting temporary plugging gate in the existing working well, wherein the temporaryplugging gate comprises a grille steel frame and a steel baffle. After the temporary plugging gate is installed, the diver goes down the shaft and plugs the original sewage pipe at the downstream partof the temporary plugging gate with brick masonry stone. After the plugging is completed, the underwater concrete is poured between the temporary gate valve and the plugs. The method adopts a temporary gate for temporary blocking, which can reduce the impact force of water flow on the diver and the blocking wall, reduce the operation risk, improve the blocking construction quality, and reduce theconstruction risk in the excavation process of the deep foundation pit of the metro.

The invention discloses a method and steel pipe support for construction of an arch tower of an inclined arch tower double-cable-plane prestressed concrete cable-stayed bridge. The method is characterized by comprising the steps that a main tower is vertically divided into a plurality of constructed sections according to the line shape of a construction template and the main tower, a tower body of the main tower is constructed through combination of a hydraulic creeping formwork and hanging construction of stay cables, the hydraulic creeping formwork bears construction loads of concrete of the constructed sections and transmits the construction loads to a tower column below the constructed sections, the vertical loads of the tower body are transmitted to a main tower bearing platform through the tower body, horizontal force generated due to inclination of the tower body serves as temporary cable stretch-draw balance through the stay cables which stretch or are drawn gradually along with the construction processes, and after the structure of the main tower is capped, all temporary cables stretch and are drawn primarily according to the design requirements to become working cables of the design of the cable-stayed bridge. By means of the method and steel pipe support, in the construction process of the arch tower of the inclined arch tower double-cable-plane prestressed concrete cable-stayed bridge, on the premise of ensuring the stress stability, the construction quality is ensured, and the construction schedule is improved.

The invention discloses a multifunctional dismounting and mounting device for a container semi-automatic twist lock. The device is installed on an installation disk of an industrial robot during work,through an automatic control system, the dismounting and mounting device for the semi-automatic twist lock and movement of the industrial robot can be controlled to complete automatic unlocking and dismounting or mounting and locking of the semi-automatic twist lock connected between containers, and thus the device can completely replace work of manual semi-automatic twist lock dismounting and mounting.

The invention provides a pipe fitting and shell welding method and application. According to the welding method, one end of a pipe fitting is made of a steel material and stretches into a shell from the neck portion of the shell, and the neck portion of the shell is made of a steel material; one end of the pipe fitting and the neck portion of the shell are connected through welding by means of the welding method adopting electric energy as the heat source, or one end of the pipe fitting and the neck portion of the shell are connected through welding by means of the welding method adopting electric energy as the heat source and furnace brazing.

The invention discloses a database query optimization method. The database query optimization method comprises a connection sequence selector and a self-adaptive decision network, wherein the connection sequence selector is used for selecting an optimal connection sequence in the query plan and comprises a new database query plan coding scheme, and codes are in one-to-one correspondence with the connection sequence; a value network which is used for predicting the execution time of the query plan, is trained by the query plan and the corresponding real execution time, and is used for reward feedback in Monte Carlo tree search; a Monte Carlo tree search method which is used for simulating and generating multiple different connection sequences, evaluating the quality of the connection sequences through a connection sequence value network, and returning a recommended connection sequence after preset exploration times are reached. And the adaptive decision network is used for distinguishing whether the query statement uses the connection sequence selector or not, so that the overall performance of the optimization system is improved. According to the method and the system, the limitation of a traditional query optimizer can be effectively avoided, and the database query efficiency is improved.

The invention discloses a method for aligning a partial compensating lens in aspheric nonzero-digit interference detection. The aligning device is characterized in that fine light beams emitted by a laser are expanded by a collimating beam expanding system to form parallel broad light beams; after parallel light enters a beam splitting plate plated with a semi-reflective semi-transparent film, one part of incident light is reflected, and the reflected light beam is reflected by a plane reference mirror and then returns to the beam splitting plate again; the other part of incident light is transmitted, and the transmitted light beam spreads forwards, enters an auxiliary aligning panel and then returns; the returned reflection light and the returned transmission light meet at the beam splitting plate to generate interference and form an interference pattern; the interference pattern passes through an imaging system and is imaged at a detector; and the inclination of the aligning panel and the partial compensating lens relative to the incident light is adjusted to enable the detector to obtain a zero-fringe interference pattern; and the inclined alignment of the partial compensating lens is realized by moving the aligning panel. According to the method disclosed by the invention, the problem of aligning error of the partial compensating lens in aspheric nonzero-digit interference detection is solved, and the adjustment error of the detection result caused by mistaken alignment is reduced.

A hydraulic ship lift, including: a mechanical synchronizing system; a stabilizing and equalizing hydraulic driving system; and a self-feedback stabilizing system. The stabilizing and equalizing hydraulic driving system includes first resistance equalizing members arranged at corners of branch water pipes or / and second resistance equalizing members arranged at bifurcated pipes, circular forced ventilating mechanisms arranged at front of water delivery valves of a water delivery main pipe, and pressure-stabilizing and vibration-reducing boxes arranged behind the water delivery valves. The self-feedback stabilizing system includes a plurality of guide wheels; each guide wheel of the self-feedback stabilizing system is fixed on a ship reception chamber through a supporting mechanism. The supporting mechanism includes a base connected to the ship reception chamber, a support articulated on the base, a flexible member fixedly arranged between the support and the base, and a limiting stopper arranged on the outer side of the flexible member.

The invention discloses a printing method for special-face conical bottles on common screen printing machines. The printing method comprises the steps of a, deviating the rotation circle center of a printing bottom mold from the circle center of the printing bottom mold; b, arranging a rotation shaft and a connection rod on a printing nozzle additionally; c, conveying the special-face conical bottles to the part under a screen printing plate through a bottle support clamp and clamping and fixing the special-face conical bottles through the printing bottom mold and the printing nozzle; d, driving the bottle bottoms and the bottle openings of the special-face conical bottles to swing towards different directions in the horizontal direction through the printing bottom mold and the printing nozzle, lifting the bottle openings upwards and dropping the bottle bottoms slightly in the vertical direction; and e, swinging a scraper on the screen printing plate in a similar fan-shaped mode relative to the special-face conical bottles and applying printing ink to bottle bodies of the special-face conical bottles in a scraping mode. According to the printing method for the special-face conical bottles on the common screen printing machines, the problems that the printing surfaces of the special-face conical bottles are inclined, the size deviation of the upper parts and the lower parts of the printing areas is large and printing is difficult because the conical degree of the bottle bodies is large and the printing surfaces are irregular are solved.

The invention discloses an adaptive bed load sampling device and a transport rate measuring method, and belongs to the technical field of bed load sampling. An adaptive supporting frame with a parallelogram structure is formed by a first supporting plate and a second supporting plate which are parallel as well as a first connecting plate and a second connecting plate which are parallel, and by means of rotational connection between the first connecting plate and the second connecting plate as well as rotational connection between the first supporting plate and the second supporting plate, a square door with fixed size of an existing sampler is transformed into a square door with the opening size adjustable randomly, so that the sampling device adapts to river beds with different transversegradients due to bed surface deformation; meanwhile, width of a sampling inlet can be accurately measured by an angle measuring plate which penetrates the second connection plate and is arranged on the first supporting plate, and measurement is quite convenient and simple. On the premise of adapting to the riverbeds with different transverse gradients, the transverse gradient values of the riverbeds can be determined conveniently and quickly, and the method is accurate and convenient for measurement of bed load transport rate in different positions.

The invention discloses a method for 1 / 4 land territory preassembling and overwater dispersion of large cylinder main grids of cellular steel sheet piles. According to the method, for the large cylinder main grids of the cellular steel sheet piles with the diameters of 31.194m, a special crane ship is anchored on the inner side of an island wall, four 1 / 4 circular steel sheet pile assembling sheets are hoisted on the single side, a rotating mechanism is arranged on a supporting tool, the steel sheet pile assembling sheets on the outer side of the island wall respectively rotate to be in place, and thus integral-type assembling of the steel sheet piles of a grid body is completed. After the assembling of the steel sheet piles of the grid body is completed, vibration sink is carried out gradually in a layering mode by adopting a vibration hammer to the design elevation. The technology can complete the construction of causeways of grid steel sheet piles in the land territory formation process quickly with lower construction cost under the conditions of site operation that all directions are restricted.

The invention discloses an aligning device and an aligning method for a partial compensating lens during detection of aspheric surface and nonzero digit interference. The aligning device is characterized in that a fine light beam emitted by a laser is expanded by a collimating beam expanding system to form parallel broad light beams; after parallel light enters a beam splitter on which a part reflective semitransparent film is plated, one part of incident light is reflected and the reflected light beam is reflected by a plane reference mirror and then returns to the beam splitter again; the other part of incident light is transmitted and the transmitted light beam forwards spreads and enters an auxiliary aligning panel and then returns; the returned reflection light and the returned transmission light meet at the beam splitter to generate interference and form an interference pattern; the interference pattern passes through an imaging system and images at a detector; and the inclination of the aligning panel and the partial compensating lens, which are relative to the incident light, is adjusted, so that the detector obtains a zero-fringe interference pattern; and the inclined alignment of the partial compensating lens is realized by moving the aligning panel. According to the aligning device and the aligning method disclosed by the invention, the problem of aligning error of the partial compensating lens during detection of the aspheric surface and nonzero digit interference is solved and the adjustment error of the detection result caused by mistaken alignment is reduced.

The invention discloses a watt hour meter with a fixing function. The watt hour meter with the fixing function comprises a box. The bottom of an inner cavity of the box is fixedly connected with a base. A watt hour meter body is arranged on the upper surface of the base. The bottom of one side face of the inner wall of the box is fixedly connected with a first electric telescopic rod. One end of the first electric telescopic rod is fixedly connected with a sliding rod. The bottom end of the sliding rod is connected to the interior of a first sliding groove formed in the upper surface of the base in a sliding mode. The top of the inner cavity of the box is fixedly connected with a second electric telescopic rod. Through the arrangement of the second electric telescopic rod, a supporting rod, a fixing block, a hinge pin, a first connecting rod, a second connecting rod, a squeezing board and clamping blocks, the effect of clamping and fixing the watt hour meter body in the vertical direction is achieved, so that the watt hour meter body is fixed in all directions, better fixation of the watt hour meter body is achieved, the problem that as a watt hour meter body cannot be fixed, the watt hour meter body tilts or shakes is solved, and the watt hour meter body is prevented from being damaged.

The invention provides a full-hydraulic-drive high-ground-clearance central-laying rape cutting and drying platform which is always horizontal with the ground, has the same stubble cutting height and is used for laying rape to the center after the rape is cut down. The header comprises a header frame, and a hanging mechanism composed of a transverse cutter, a reel, a conveying mechanism, a driving mechanism, a rotating frame and a fixing frame is arranged on the header frame. The rotating frame comprises a U-shaped groove and a front vertical beam; the fixing frame comprises a rear cross beam and a rear vertical beam; a main beam of the header frame is arranged in the U-shaped groove; the lower end of the front vertical beam is connected with the lower part of the rear part of the header frame through a pluggable bolt; one side wall of the U-shaped groove is rotationally connected with the rear cross beam through a pin shaft; height sensors are arranged on the two sides of the header frame. The two ends of the double-acting oil cylinder are hinged to the rotating frame and the fixed frame respectively, the height sensor is electrically connected with the controller, and the controller processes signals of the height sensor, then controls the double-acting oil cylinder to act and drives the rotating frame to rotate around the pin shaft relative to the fixed frame, so that the distances between the two sides of the header and the ground are consistent.

The invention provides a plug-in type cable head disassembling tool and relates to the technical field of power equipment, which comprising an upper clamping table. The upper clamping table is provided with a leading screw assembly. The leading screw assembly comprises a left half ring, a right half ring, a leading screw, a locking plate, a bolt and a leading screw pressing plate. The left half ring and the right half ring are provided with the locking plate. The left half ring and the right half ring are connected together through the bolt and a nut. The upper side of the left half ring and the upper side of the right half ring are provided with the leading screw pressing plate. The leading screw pressing plate is provided with a threaded hole. The leading screw spirally penetrates through the threaded hole and is inserted into a mounting hole in a lower clamping table. The leading screw is connected with an inner cone arranged below a cable plug-in type head. According to the technical scheme of the invention, the problem in the prior that the stress is not uniformly applied onto a cable terminal head can be effectively solved. Meanwhile, the offset and tilt problems of the cable terminal head of a metal armored cabinet can also be effectively solved. Moreover, the inconvenient installation problem due to the insufficient space of a cable cabin can be effectively solved.

The invention relates to a mobile phone with a camera, in particular to a mobile phone with a camera controlled by a caller. The mobile phone solves the problems that the caller can not control the zooming, rotation or inclination of the camera when the mobile phone is in a call, and the mobile phone improves the calling experience of the user. The invention also provides a method for zooming, rotating and inclining the camera during the calling process of the mobile phone, comprising the steps as follows: the mobile phone in the call receives a signal sent by the mobile phone of the caller by a mobile communication network and does the operations of zooming, rotating and inclining on the camera according to the signal.

The invention provides an adjustable shovel guide rail bracket of a tree moving machine. The adjustable shovel guide rail bracket comprises a shovel guide rail bracket body, wherein the shovel guide rail bracket body comprises a fixed front frame, a first rotary rear frame and a second rotary rear frame; the first rotary rear frame and the second rotary rear frame are hinged to the fixed front frame respectively; the adjustable shovel guide rail bracket further comprises at least three groups of leveling mechanisms; each leveling mechanism comprises a leveling hydraulic cylinder fixed block, a leveling hydraulic cylinder and a leveling cushion; the leveling hydraulic cylinder fixed blocks are arranged on the shovel guide rail bracket body; cylinder barrel ends of the leveling hydraulic cylinders are arranged on the leveling hydraulic cylinder fixed blocks; piston rod ends of the leveling hydraulic cylinders are hinged to the leveling cushions; and the leveling cushions do up-down movement through the leveling hydraulic cylinders. According to the adjustable shovel guide rail bracket of the tree moving machine, provided by the invention, at least three groups of the leveling mechanisms are coordinated, so that the shovel guide rail bracket body can still keep horizontal under the leveling effect of the leveling mechanisms; and the problems that the machine is inclined and a soil ball swings and the like when the machine works on an inclined ground are solved.

The invention discloses a pre-pressing machine. The pre-pressing machine comprises a rack, a moving cross beam, lifting oil cylinders, a plurality of main oil cylinders, synchronizing shafts, gears and racks, wherein the synchronizing shafts are rotationally arranged on the moving cross beam and parallel with a plane of the moving cross beam, and axes of the synchronizing shafts are parallel with a connecting line of the plurality of main oil cylinders; the same gears are arranged at two ends of each synchronizing shaft; and the racks are fixedly arranged on the rack of the pre-pressing machine, correspond to the gears in a one-to-one manner and are meshed with the gears. When the moving cross beam moves up and down, the gears are meshed with the racks and drive the synchronizing shafts to rotate, and rotation angles of two ends of each synchronizing shaft are equal all the time, so that two ends of the moving cross beam move up and down synchronously all the time, the problem that the two ends of the moving cross beam are inclined due to inconsistency of motions of the main oil cylinders is effectively solved, all oil cylinders connected to the moving cross beam are effectively protected, and the equipment maintenance cost is effectively reduced.

The invention discloses a drilling device used in the field of punching. The drilling device comprises an electrical drilling machine, wherein the electrical drilling machine comprises a motor base and a drilling bit horizontally arranged; a pulley is arranged on each of the upper surface and the lower surface of the motor base; the pulleys are in sliding connection with guide rails; a connecting seat is fixedly connected between the two guide rails; a first connecting rod is arranged at one end, away from the connecting seat, of each of the guide rails; a sucking disc is connected to one end, away from the guide rails, of each of the first connecting rods; a spring is connected between the motor base and the connecting seat; part of the drilling bit extends out of the sucking disc; a second connecting rod is connected to a part below the connecting seat; an air cylinder is connected to one end, away from the connecting seat, of the second connecting rod; a piston rod is connected to a part below the air cylinder; a universal wheel is arranged below the piston rod. With the adoption of the drilling device provided by the invention, the vibration of the drilling bit can be limited, and an inclined drilled hole is avoided.

The invention relates to a road extraction method based on topological information refinement, which comprises the following specific operation steps: carrying out model training, carrying out a testprocess, and comparing the influence of the combination of different hyper-parameters or loss functions on a model. According to the invention, because the expansion module and the information moduleare fused at a pixel level in an encoding and decoding structure (encoder-decoder), a road with better edge coherence can be obtained; and meanwhile, a loss function of weight combination is applied,so that the influence of sample imbalance on the model can be controlled more effectively.

The invention discloses an on-line automatic reshaping machine for palletized goods, and the on-line automatic reshaping machine provided by the invention comprises a conveyor, wherein the palletized goods are carried on the conveying plane of the conveyor; reshaping devices which are used for clamping and reshaping the palletized goods are arranged on the left and right sides of the conveying plane of the conveyor; each of the reshaping devices comprises clamping plates arranged on the left or right side of the conveying plane of the conveyor; the bottoms of the clamping plates are rotatablyconnected to a frame of the conveyor; at least one support arm is rotatably connected to the middle parts of the clamping plates; the lower end of the support arm is rotatably connected to a crank arm; and the linkage of the crank arm and the support arm is used for driving the clamping plates to clamp and reshape the palletized goods. The structure is simple and the reshaping efficiency is high.In the on-line automatic reshaping machine for the palletized goods, the reshaping devices which are used for clamping and reshaping the palletized goods are arranged on the left and right sides of the conveying plane of the conveyor, thereby reshaping the goods in a conveying process and solving the problems easily occurred in a tray conveying process that the goods are loose and bias and have inferior outlines. Besides, the on-line automatic reshaping machine has the advantages of high reshaping efficiency, safety and reliability.

The invention provides a keel mounting structure of a fabricated integrated ceiling, and relates to the technical field of ceiling keel mounting. The keel mounting structure of the fabricated integrated ceiling comprises a main keel, an auxiliary keel is arranged at the bottom of the main keel, the two ends of the outer side of the main keel are sleeved with first hanging brackets correspondingly,and adjusting mechanisms are arranged in the first hanging brackets; and each adjusting mechanism comprises a first ratchet wheel, the first ratchet wheels are arranged on the outer sides of the first hanging brackets, and first locking bolts are arranged in the first ratchet wheels. According to the keel mounting structure of the fabricated integrated ceiling, the first hanging brackets drive first pawls to rotate, so that the two first hanging brackets rotate to a proper angle to solve the problem of inclination of the main keel, then threaded columns and second locking bolts are driven tomove upwards, thus the horizontal position of the auxiliary keel can be finely adjusted, and therefore, the accurate horizontal position can be achieved during mounting in cooperation with the operation of the adjusting mechanisms.

The invention relates to a vibration absorber of an air conditioning compressor, a vibration absorbing bracket and a vehicle, which is designed to provide the vibration absorber of the vehicle air conditioning compressor used for preventing the air conditioning compressor mounted on an upper support of the vibration absorbing bracket from being tilted or overturned. The vibration absorber comprises a spiral spring and connecting pieces, wherein the connecting pieces are distributed on two opposite sides of the radial direction of the spiral spring; the connecting pieces comprise upper fixing pieces and lower fixing pieces; hole slots which are oppositely opened in an axis direction of the spiral spring are arranged on the upper fixing pieces and the lower fixing pieces, respectively; and the upper hole slots and the lower hole slots are matched with each other to form fixed holes which are in interference fit with the spiral spring to be fixedly connected with the spiral spring. As no rotation is available between the connecting pieces and the spiral spring, a problem that the air conditioning compressor mounted on the upper support of the vibration absorber is tilted or overturned is effectively solved.

The invention discloses a device and a method for accurately measuring the sediment thickness of a cast-in-situ bored pile. The device comprises an upper computer and a sediment probe, wherein the sediment probe comprises a shell, a mechanical probe and a chassis; at least four first pressure sensors are uniformly distributed on a bottom surface of the chassis; a second pressure sensor, which is used for recording a real-time pressure value when entering a sediment layer to reach the bottom of the sediment layer, is arranged at an end part of the mechanical probe; an angle sensor for measuringan inclination angle of the mechanical probe is arranged on the body of the mechanical probe; the first pressure sensors, the second pressure sensor and the angle sensor are all electrically connected with the upper computer; and a counterweight device capable of being adjusted in real time is arranged on the chassis. Through the device and the method disclosed by the invention, the position of the upper surface of the sediment layer and the sediment thickness can be accurately judged, the inclination of the mechanical probe can be measured while measuring the pressure at the bottom of the chassis and the mechanical probe, a testing result can be corrected by integrating the pressure value and the inclination value, thereby obtaining an accurate sediment thickness.

The invention discloses a fixture for brazing of a fuel manifold. The fixture comprises a circular base (1); observation ports (2) are formed in the external circumference of the circular base (1) ina uniformly-spaced manner; a plurality of pressing units distributed in a uniformly-spaced manner are arranged on the upper end face of the circular base (1); the pressing units comprise pressing blocks (5) in threaded connection with studs (6), and supporting seats (3) below the pressing blocks (5); the studs (6) are perpendicular to the upper end face of the circular base (1); and lock nuts (7)are arranged on the pressing blocks (5) and are arranged at the tail ends of the studs (6). The problem that the end face of a spout is irregularly inclined after the brazing is solved, so that the design requirement that the planeness is less than or equal to 0.3 mm is met, the subsequent correction difficulty is lowered, the correction labor-hour is shortened, and the production efficiency is improved.

The invention discloses an invoice tilt detection and geometric correction method based on image recognition, which aims at detecting a tilt angle of an invoice image. The invoice tilt detection and geometric correction method comprises the steps of: utilizing image acquisition equipment to acquire an invoice image, and performing grayscale processing on the acquired invoice image to obtain a grayscale image; then converting the grayscale image into a binary image, performing edge detection on the binary image of an invoice by utilizing a Sobel operator to obtain an edge image of the invoice;and finally adopting Hough transform on the edge image of the invoice, detecting the longest straight line in the invoice, calculating an invoice tilt angle, and rotating the invoice image to obtain the corrected invoice image. through introducing the Sobel operator and Hough transform in the field of image processing, the invoice tilt detection and geometric correction method can detect the tiltangle of invoice image precisely, carries out geometric correction on the invoice according to the tilt angle, solves the problem that invoice cannot be recognized properly because of the tilt of invoice during invoice recognition, can be applied to various kinds of invoices, and has high application value in intelligent financial reimbursement.

The invention provides a seedling-supporting transplanting apparatus and a transplanting machine. The seedling-supporting transplanting apparatus comprises a frame, an earthing wheel, a clamping supporting mechanism, a seedling pushing device, a position detection mechanism and a control system. The earthing wheel is mounted at one end of the frame; the clamping supporting mechanism is mounted atthe bottom of a ditcher of the frame; the clamping supporting mechanism is connected with a guide slide slot of the frame; the seedling pushing device is connected with the clamping supporting mechanism; the position detection mechanism is used to detect positional signals about whether pot seedlings drop into the clamping supporting mechanism; the control system controls a first driving mechanismaccording to the positional signals detected by the position detection mechanism such that the seedling pushing device drives the clamping supporting mechanism to close and to clamp the pot seedlings; the control system controls a second driving mechanism such that the seedling pushing device drives the clamping supporting mechanism to slide along the guide slide slot of the frame. The clamping supporting mechanism is driven to move in the guide slide slot through the seedling pushing device so as to simulate artificial transplanting of pot seedlings; the problem of pot seedling inclination and dodging caused by soil reflow is solved; the pot seedlings can be transplanted under better upright degree.