117results about How to "Achieve initial positioning" patented technology

The invention discloses an automatic conveying device for sheets. The device comprises a fixed frame, a conveying mechanism, a positioning processing platform and an automatic lift positioning workbench, wherein the conveying mechanism is arranged above the automatic lift positioning workbench through the fixed frame; the positioning processing platform is positioned in the front of the conveying mechanism; the conveying device comprises a guiding sliding rail which can move longitudinally and transversely, a front cylinder sucker, a middle cylinder support plate, a rear cylinder sucker, a front push cylinder push plate, a feed roller driven by a drive motor and a sheet sliding rail support; the front cylinder sucker, the middle cylinder support plate, the rear cylinder sucker and the front push cylinder push plate are arranged on the guiding sliding rail; the front push cylinder push plate is positioned at the rear side of the middle cylinder support plate; the feed roller is positioned in the front of the guiding sliding rail; the sheet sliding rail support is positioned in the front of the feed roller; and the positioning processing platform is positioned below the sheet sliding rail support. The device has the advantages of high working efficiency, low labor intensity and safety in operation.

The invention relates to a connector device for replenishing gas and liquid on the orbit. The connector device is used for replenishing gas and liquid for a target satellite by a service satellite on the orbit. The connector device comprises an active mechanism and a passive mechanism. The service satellite and the target satellite are positioned and conveniently separated through guide devices on respective butt-joint surfaces of the active mechanism and the passive mechanism, the service satellite and the target satellite are caused to move relative to each other through a drive mechanism having the axial spacing function, and the service satellite and the target satellite are locked through a positioning locking structure, so that the service satellite and the target satellite are guaranteed to be at fixed positions relative to each other in the on-orbit gas-liquid replenishing process. Through the measures, the efficiency of the on-orbit gas-liquid replenishing process is improved, and the safety of the on-orbit gas-liquid replenishing process is guaranteed.

The invention provides a terrain auxiliary navigation method based on mixture of a terrain contour matching (TERCOM) algorithm and particle filtering, aiming at solving the problems of large initial position error and the diffusing of a wave filter when an aircraft flies at high maneuverability in a flat terrain region. The navigation method comprises a searching mode, a tracking mode, a losing mode and mode logical shift. In the searching mode, measurement information is processed in batches respectively by a mean absolute deviation (MAD) algorithm, a mean-square deviation (MSD) algorithm and a cross correlation (COR) algorithm, and initial positioning is quickly and exactly realized under the large initial position error according to a consistent voting algorithm; under the tracking mode, the measurement information is processed in a recurrence way by means of particle filtering, and the continuous matching and position can be realized under the tracking mode; and the searching mode is shifted into the tracking mode after the initial positioning is realized by the losing mode and the mode logical shift, and the tracking mode is shift to be the searching mode after pseudo positioning exists. The continuous positioning under the large initial position error can be guaranteed to be stably and reliably realized.

The invention puts forward a brain tumor image segmentation method based on multi-sequence MR (Magnetic Resonance) image correlation information. The method comprises the following steps of: S1: reading the MR images of different sequences in the same focus; S2: selecting the brain tumor area of the MR image of one sequence as a tumor seed point; S3: carrying out similarity matching on the MR images of other sequences by the selected brain tumor seed point, and searching potential brain tumor seed points and background seed points in the MR images of other sequences; and S4: taking the searched potential brain tumor seed points as priori knowledge, and utilizing an image segmentation algorithm to realize the accurate segmentation of the brain tumor area in the multi-sequence MR image.

The invention provides a novel mobile robot for picking strawberries. The robot comprises a bottom plate, a manipulator, a sensor assembly, a limit switch assembly, a walking mechanism, a power mechanism, a control system, an electromagnetic valve, an air pumping device, and an air storage tank; the manipulator comprises an arm assembly, a hand claw assembly and an electric and pneumatic cutting handle assembly, the arm assembly is installed on the bottom plate, and the hand claw assembly is installed on the arm assembly; and the control system is electrically connected with the sensor assembly, the limit switch assembly and the power mechanism, the control method adopts multithreaded programming, strawberry picking programs are downloaded to ''1+2'' mode coupled ROBO controllers through USB serial ports, and the control system controls the power mechanism to control action and positions of the manipulator and the sensor assembly. The robot provided by the invention can realize automatic perception and identification analysis of strawberries, and accurately picks the ripe strawberries

The invention discloses a portable frequency-spectrum digital star finder, which has main functions of finding a satellite position, and providing the exact satellite position when satellite antennas are installed. The portable star finder is provided with power supply units that bring great convenience for users to use and operate. The digital star finder presets a great number of satellite channel meters for the users to use; the users can measure satellite signals only by choosing names of the satellites, thereby avoiding preliminary work of searching the satellite channel meters. The digital star finder further provides satellite antenna parameters obtained according to local latitude and longitude, thereby ensuring that the users conveniently realizes the initial location to the positions of the satellite antennas, increasing star-finding speed, and downloading latest satellite channel data from instrument websites at any time, so as to ensure that the instrument storage data is consistent with the satellite channel parameters.

The invention provides a Chinese positioning, segmenting and identifying method in a natural scene image. Through a FASText model, an original picture is subjected to preliminary character positioning, a candidate character area is extracted, the candidate character area is pre-segmented, the separate word part of the pre-segmented character area is identified, and a field part can be subjected to further separate-word segmentation and identification. By use of the method, through the accurate extraction of character stroke characteristics and the powerful character identification ability of a deep residual neural network, a path tree method is combined to simply and effectively realize a purpose of Chinese positioning and identification, and the method can be applied to various natural scenes and does not need supervised training.

The invention discloses an optical super-resolution imaging system based on an inverted microscope and a micro-sphere lens which can realize optical super-resolution imaging under an inverted microscope. The optical super-resolution imaging system includes an optical mirror, a micro-sphere lens, an atomic force microscope scanning probe, a sample stage, an optical inverted microscope, and a displacement stage. The atomic force microscope scanning probe is pasted through a substrate thereof onto the optical mirror. The micro-sphere lens is fixed to a cantilever beam and a tip of the atomic force microscope scanning probe, and is positioned below the optical mirror. The optical mirror is fixed to the displacement stage above the optical mirror. The sample stage is positioned below the micro-sphere lens. The optical inverted microscope is positioned below the sample stage, and the objective lens of the optical inverted microscope is positioned right below the micro-sphere lens. The invention further provides a dynamic imaging method using the system. The system of the invention is especially suitable for observing the internal structure of living cells and other occasions.

An experimental device of a compact magnetic levitation worktable comprises a stator portion and a rotor portion. The stator portion comprises a base and a cylindrical stator housing arranged on the base, and a circular top cap is arranged at the top end of the stator housing. The rotor portion comprises a rotor arranged in the stator housing, a support column is fixed on the rotor and penetrates the top cap, and an objective table is arranged at the top of the support column. A plurality of first electromagnets used for vertical driving and a plurality of first eddy current sensors used for detecting vertical displacement are arranged on the top cap, and a plurality of second electromagnets used for horizontal driving and a plurality of second eddy current sensors used for detecting horizontal displacement are arranged on the side wall of the stator housing. The experimental device suitable for precise positioning magnetic levitation worktables is designed in order to meet the requirement on ultraprecise positioning, can be used for positioning of lithography machine wafer stages, can also be used for laser processing or other occasions needing micro-motion worktables, and is particularly suitable for occasions needing vacuum and free of friction.

The invention discloses a spliced panel welding tool. A spliced panel comprises a panel body and a splicing concave body. The welding tool comprises a supporting base plate. The front side of the supporting base plate is provided with a left edge and angle locating block, a right edge and angle locating block and first pressing devices. The rear side of the supporting base plate is provided with aleft sliding block with a locating supporting surface, a right sliding block with a locating supporting surface and locking mechanisms for locking the sliding blocks. A locating protrusion is arranged in the middle position of the supporting base plate. A second pressing device is arranged on the rear side of the supporting base plate. Before welding, the panel body is placed on the supporting base plate, and the left and right edge and corners of the panel body are located through the left and right locating blocks. The edge of the front side of the panel body is pressed through the first pressing devices. The sliding blocks are moved forwards and locked through the locking mechanisms, so that the locating supporting surfaces abut against the panel body, and the splicing concave body sleeved on the locating protrusion is pressed through the second pressing device. The spliced panel welding tool can improve the mounting and demounting efficiency and conduct quick locating on a workpiece and can also ensure the shape and dimension precision of the welding formed workpiece.

The invention discloses a noise reduction type drilling and tapping all-in-one machine. The noise reduction type drilling and tapping all-in-one machine comprises a base, a stand column, a worktable,a drilling part and a tapping part and further comprises a cross beam horizontal to the base and connected with the upper end of the stand column, the drilling part and the tapping part are connectedto the cross beam and can do reciprocating motion in the length direction of the cross beam, the cross beam is provided with a transverse moving assembly used for driving the drilling part and the tapping part to do reciprocated moving in the length direction of the cross beam, the stand column is provided with a lifting assembly for driving the cross beam to vertically lift, the worktable comprises a noise reduction chip storage box which is arranged above the base and provided with an opening in the top, and a fixing table which is arranged above the noise reduction chip storage box and usedfor fixing a workpiece to be drilled and tapped, the drill bit end of the drilling part is provided with a protection cover and / or the screw tap end of the tapping part is provided with a protectioncover, the protection cover is provided with a blowing sucking opening, and the blowing sucking opening is connected with a blowing sucking device through a pipeline. The machine is good in noise reduction effect, and can solve the waste chip splashing problem, and the waste chips are easily recycled.

The invention relates to a fabricated steel structure building assembly and a fabrication method, and belongs to the technical field of fabricated buildings. The fabricated steel structure building assembly comprises stand columns and cross beams. Connecting grooves are formed in the side faces of the stand columns, the connecting grooves are formed in the height direction of the stand columns, bearing blocks sleeve the outer walls of the stand columns, and the bearing blocks are slidably connected with the stand columns. Protruding blocks are arranged on the inner walls of the bearing blocks,the protruding blocks are slidably connected with the connecting grooves, bayonets are formed in the protruding blocks, sliding grooves are formed in the stand columns and communicate with the connecting grooves, sliding blocks are slidably connected into the sliding grooves, the sliding blocks are clamped to the bayonets, the end parts of the cross beams abut against the tops of the bearing blocks, and the stand columns are provided with first fixing pieces used for fixing the bearing blocks and second fixing pieces used for fixing the cross beams. The fabricated steel structure building assembly has the effect conveniently install the cross beams.

The invention provides an automatic binding machine and an automatic shifting workbench thereof. The automatic shifting workbench comprises a base, a working platform, a transmission component and a driving unit; a sliding groove is formed in the upper surface of the base; the working platform is provided with a front surface and a back surface; the back surface of the working platform is fixedly connected with a guide rail matched with the sliding groove; a yielding hole is formed in the base so that the transmission component is arranged; the transmission component is connected with the working platform; the transmission component and the driving unit move synchronously; and the driving unit is used for driving the transmission component to allow the working platform to discontinuously move the preset distance along the sliding groove. When the automatic shifting workbench is applied to the automatic binding machine, to-be-bound documents can be accurately drilled and bound.

The invention provides a brake disc and a vehicle provided with the same. The brake disc comprises a disc body, a disc hub and disc hub force-transferring keys, wherein a plurality of connecting clawsare arranged on an inner ring of the disc body and arranged in the circumferential direction of the inner ring at intervals, and a disc body force-transferring groove is formed between the at least two adjacent connecting claws; the disc hub is connected with the disc body and is provided with at least one disc hub force-transferring key mounting hole, and the disc hub force-transferring key mounting holes correspond to the disc body force-transferring grooves; and the first ends of the disc hub force-transferring keys are arranged in the disc body force-transferring grooves in a penetratingmode, and the second ends of the disc hub force-transferring keys are arranged in the disc hub force-transferring key mounting holes in a penetrating mode. The brake disc solves the problem that a disc body and disc hub positioning structure of a brake disc in the prior art is complex.

The invention relates to the technical field of flat screen printing equipment and provides a treadmill flat screen printing machine. The treadmill flat screen printing machine comprises a treadmill frame, wherein running gears are arranged on the two sides of the treadmill frame; a treadmill station positioning device is arranged between the treadmill frame and two guide rails; a tool rest frame is arranged in the treadmill frame; a screen frame is rotationally arranged on the inner side of the tool rest frame; a screen frame positioning device is arranged between the screen frame and the guide rails; a scraper device driven by a scraper driving device is arranged on the tool rest frame in a sliding manner; lifting devices for driving the screen frame and the scraper device to rise or fall are arranged on the two sides of the treadmill frame respectively; the signal output terminal of the treadmill station positioning device is electrically connected with a signal processing unit; the signal output terminal of the signal processing unit is electrically connected with the signal input terminals of the running gears, the lifting devices and the scraper driving device respectively. According to the invention, effective and accurate walking and stopping movements can be realized when the treadmill flat screen printing machine walks between stations, and the screen frame can be accurately positioned on each station, so that the positioning accuracy of the treadmill flat screen printing machine is ensured.

The invention belongs to the technical field of coal mining machine rocker arm mechanical transmission system fault diagnosis, and particularly relates to a coal mining machine rocker arm mechanical transmission system fault accurate positioning method. The method comprises the steps of 1, collecting rocker arm vibration signals in normal and fault states, and performing noise reduction processingon the rocker arm vibration signals through a wavelet transformation method; 2, performing FFT conversion to obtain a spectrogram of the vibration signal; 3, performing comparative analysis on the normal rocker arm spectrogram and the fault rocker arm spectrogram to obtain vibration characteristic frequency of a fault part, and performing preliminary positioning on the fault part; 4, comparing and analyzing the continuous complex Morlet wavelet envelope demodulation spectra of the normal rocker arm and the faulty rocker arm to obtain the rotation frequency of the faulty part; and 5, accurately positioning a faulty part by combining adaptive continuous complex Morlet wavelet envelope demodulation analysis with FFT. The method has important practical significance for guaranteeing safe operation of the coal mining machine, changing preventive periodic maintenance into predictive maintenance, safely and efficiently producing a coal mine, improving the maintenance efficiency and reducing the maintenance cost.

The invention discloses a low-voltage transformer area electricity larceny monitoring system based on line loss and user electricity consumption. The low-voltage transformer area electricity larceny monitoring system comprises a data acquisition function module which acquires user archive information, user electricity consumption data, line loss data and transformer area information from a metering automation system, and a data processing function module which is used for calculating a ''line loss threshold value'' of each transformer, and marking the transformer if the statistical line loss rate of the transformer is higher than the calculated line loss threshold value, wherein the marked transformer is analyzed and calculated, and whether an electricity larceny behavior exists or not is determined. An electricity larceny early warning module is included and is used for performing early warning on the user with the electricity larceny behavior in the system and reminding a system administrator through a message prompt and a short message in the system; and an early warning processing module is included and is used for realizing door-to-door check of the electricity larceny suspected user. The technical problems that in the prior art, electricity larceny users are difficult to locate, the workload of locating the electricity larceny users is large, and the real-time performance of finding the electricity larceny users is not high are solved.

The invention discloses a wheel set axis automatic positioning device for wheel set maintenance. The wheel set axis automatic positioning device comprises a rack which is provided with a positioning center and a transmission assembly, a first positioning bracket which can be slidingly connected with the rack and can move between the starting location and the positioning location of the rack under the action of a driving device, and a second positioning bracket which can be slidingly connected with the rack and is connected with the first positioning bracket through the transmission assembly, wherein the second positioning bracket and the first positioning bracket are arranged at two sides of the positioning center equidistantly, the transmission assembly receives the power of the first positioning bracket so as to drive the second positioning bracket and the first positioning bracket to perform equidistant relative displacement, and the first positioning bracket and the second positioning bracket are provided with clamping components. The wheel set axis automatic positioning device for wheel set maintenance of the invention has the advantages of simple structure and convenient operation. With the wheel set axis automatic positioning device adopted, the axis of a wheel set can be automatically positioned under the condition that any other auxiliary mechanisms and control are additionally adopted.

The invention discloses a mounting support assembly tool. A first linear guide rail and a second linear guide rail are arranged on a base plate. A first mounting plate is arranged on the first linear guide rail and the second linear guide rail. A second mounting plate is arranged on the first linear guide rail and the second linear guide rail. A first supporting plate of a mounting support is arranged on the first mounting plate through first locating pins. A second supporting plate is arranged on the second mounting plate through second locating pins. A cross beam is mounted on a third mounting plate through third locating pins. According to the mounting support assembly tool, the first locating pins and the second locating pins are coaxially arranged, so that the coaxiality of mounting holes in the first supporting plate and mounting holes in the second supporting plate is guaranteed; the first supporting plate and the second supporting plate are connected with the cross beam; the welding process is also completed on the mounting support assembly tool; under the locating action of the first mounting plate and the second mounting plate, it is guaranteed that the relative positions of the first supporting plate and the second supporting plate can not be changed in the welding process, and the assembly quality of the mounting support is ensured.

The invention discloses flanges capable of being positioned. The flanges comprise a first flange plate and a second flange plate which are arranged left and right; the left end surface of the first flange plate and the right end surface of the second flange plate are connected with pipelines correspondingly; the right end surface of the first flange plate is convex and provided with positioning convex strips; the left end surface of the second flange plate is concave and provided with positioning concave grooves; the right end surface of the first flange plate is in sealing connection with the left end surface of the second flange plate; and the positioning convex strips are clamped in the positioning concave grooves. According to the flanges capable of being positioned, the two flange plates are provided with the convex strips and the concave grooves, so that the two flange plates are preliminarily positioned and are assembled by one person.

The invention discloses a novel gear hobbing machine and belongs to the field of gear production and machining. The novel gear hobbing machine solves the problem that a gear hobbing machine clamping gear workpieces is complicated at the present stage. According to the technical scheme, the novel gear hobbing machine comprises a rack, a gear hobbing device and a clamping device used for fixing thegear workpieces. The clamping device comprises a fixture insert column, a gear workpiece placing device, a fixture base aligned with the fixture insert column and a driver used for driving the fixtureinsert column to lift to realize matching with the fixture base. The fixture insert column comprises a central shaft and an expansion component which is mounted on the central shaft and clamps and fixes the gears by expansion. The expansion component comprises a sliding sleeve which is movably arranged outside the central shaft in sleeving and sliding modes, an expansion casing pipe which is mounted at the sliding sleeve and a driving piece which is movably arranged at the central shaft in sleeving and sliding modes and can be embedded in the expansion casing pipe. The novel gear hobbing machine is capable of conveniently clamping the gear workpieces and has high clamping efficiency.

The invention discloses reactive type pressure-sensitive resin and a preparation method thereof. The reactive type pressure-sensitive resin is prepared from acrylate compounds, hyperbranched unsaturated polyester resin, functional monomers, an initiator, an organic solvent and auxiliaries through free radical polymerization. The prepared reactive type pressure-sensitive resin is modified resin with certain pressure-sensitive characteristics and potential reactivity and is subjected to further reaction under the heating or illuminating condition, bonding is enhanced, the purpose of permanent fixation is achieved, the resin can be applied to preparation of a reactive heat conducting adhesive tape product, structural adhesion and fixation are realized, and application reliability of a heat conducting adhesive tape in electronic devices and equipment is remarkably improved.

The invention discloses a spring compression aging cladding layer protection jig and a using method thereof. The protection jig comprises jig bodies (3) and an aging mandril (4). The spring compression aging cladding layer protection jig is characterized in that the aging mandril (4) can be movably provided with a plurality of jig bodies (3); the middle parts of the jig bodies (3) are provided with bulged positioning shoulders (2); the jig bodies (3) are axially provided with through holes (5); a blocking seat (1) is arranged at one side of the aging mandril (4), and is provided with one of the jig bodies (3); the jig bodies (3) are symmetrical with respect to the meso-position planes of the positioning shoulders (2). The using method is simple, feasible, efficient, practical, and reliable to operate.

The invention discloses an assembly die base and a production technology thereof and belongs to the technical field of injection model machining. According to the technical scheme, the assembly die base is characterized by comprising an upper die and a lower die; the upper die comprises a face plate and a plate A arranged on the lower surface of the face plate; the lower die comprises a bottom plate, a plate B, square iron, a face needle plate and a bottom needle plate; at least one die locking block connected with the plate A and the plate B is arranged between the upper die and the lower die; the die locking blocks are fixed to the outer side of the plate A or the plate B; a sliding groove is formed in each die locking block in the vertical direction, wherein a limiting pin A and a limiting pin B sliding in the sliding groove are arranged on the plate A and the plate B correspondingly; limiting caps are rotationally arranged on the limiting pins A and the limiting pins B; elastic clamping parts are connected to one sides of the limiting caps; and clamping connecting grooves for the elastic clamping parts to be embedded are formed in the die locking blocks. The assembly die base and the production technology thereof have the beneficial effect that the plate A and the plate B can be attached to each other tightly in the transportation process, and completeness of a die cavity is ensured.

The invention discloses a fire detection method based on a convolutional neural network, and the method comprises the steps: constructing the convolutional neural network for training, enabling the input of the convolutional neural network to be a collected fire image, and enabling the output of the convolutional neural network to be a probability value of whether an input image is a fire image; the method comprises the steps of verifying whether an input to-be-predicted picture is a fire picture, performing detection in a superpixel detection mode, performing superpixel segmentation on the to-be-predicted picture, performing binary classification detection on pixel points in each segmented superpixel region, and obtaining the shape of a fire on the to-be-predicted picture according to a detection result of each grid. Compared with a traditional target detection and positioning method, the method has the advantages that target positioning is achieved without a labeled training set, andin the aspect of accuracy, fire binary classification detection has the highest 93% accuracy in pictures and is low in complexity.

The invention discloses a color box processing system and a color box processing method thereof. The color box processing system comprises a cutting device, a printing system, a surface treatment system, a corrugation mounting device, a box rolling device, an inspection device and a packaging device. The processing process of the color box processing method sequentially comprises the steps of cutting, printing, printing inspection, surface treatment, corrugation mounting, box rolling, forming, full inspection, packaging and warehousing. The printing step comprise the steps of S1, paper tube installation, S2, printing paper positioning, S3, stable paper feeding and S4, printing operation. According to the system and the method, it can be ensured that the printed content is complete, and waste caused by the situation that content is missing or large-area paper is adopted is avoided.

The invention relates to a surface-attached type three-phase permanent magnet synchronous motor rotor magnetic pole initial position location method, which solves the problem that the existing three-phase permanent magnet synchronous motor rotor magnetic pole position initial position location method is contradiction between the location time and the location precision. According to the method, only six basic spatial voltage vectors are injected to a three-phase permanent magnet synchronous motor in a static state; a PWM full-turn-off state for switch of the voltage vectors is used as switching buffer of adjacent voltage vectors, so that the dead zone time does not need to be configured for the PWM output signal, and only the phase current response value is acquired; the variable quantityrelated to the trigonometric function of the initial position angle of the rotor magnetic pole is constructed; and the initial position of the rotor magnetic pole can be detected through calculation of the inverse trigonometric function. According to the surface-attached type three-phase permanent magnet synchronous motor rotor magnetic pole initial position location method, complicated high-frequency voltage injection or sequence pulse voltage injection is not needed, the implementation is simple, and the location speed is high; and only six basic voltage vectors are used, so that rapid and high-precision location of the initial position of the rotor magnetic pole can be achieved.

The invention discloses a child and mother vehicle, and belongs to the technical field of transportation equipment. The child and mother vehicle is used for transporting workpieces into and out of a target bin position, and comprises a motion control system; a mother vehicle, wherein the mother vehicle comprises a rack and a bearing platform arranged on the rack, the rack can move back and forth in the X direction, and the bearing platform can ascend and descend in the Z direction; a child vehicle arranged on the bearing platform, capable of ascending and descending along with the bearing platform and capable of moving back and forth in the Y direction relative to the mother vehicle; and a butt joint device, wherein the butt joint device comprises an X-direction positioning portion movablyarranged on the bearing platform, and the X-direction positioning portion is used for being in positioning butt joint with the target bin position. The workpieces can be carried to a three-dimensional warehouse, and the child vehicle does not shake when passing through rails from the bearing platform to the target bin position.

The invention relates to a hemp leaf harvesting method. The hemp leaf harvesting method comprises the following steps: moving a cutting device close to sisal hemp plants; starting a cutting device anda lifting mechanism so as to finish the harvesting of hemp leaves; driving the cutting device to move far from and hemp plants by virtue of a horizontal moving mechanism so as to finish the harvesting of partial hemp leaves; starting a hemp leaf transportation device to guide and convey the harvested hemp leaves to the subsequent processing step; and timely processing the harvested hemp leaves. According to the harvesting method, the harvesting operation of the hemp can be effectively realized, and the harvesting efficiency of the hemp is improved.