303results about How to "Accurate and stable positioning" patented technology

The embodiment of the invention discloses a magnetic-field measurement device and a manufacturing method thereof as well as a magnetic-field measurement method. The magnetic-field measurement device comprises a combined optical fiber, monocrystal diamond particles, a microwave transmission line, a microwave generator, a laser device and a spectrometer, wherein the combined optical fiber is prepared by connecting two optical fibers; the monocrystal diamond particles are packaged between the end faces of the two optical fibers and provided with single NV colour centers; the microwave transmission line is arranged at the external wall of the combined optical fiber; the microwave generator is connected with the microwave transmission line; the laser device is connected with one end of the combined optical fiber; and the spectrometer is connected with the other end of the combined optical fiber; and exciting lights are input from one end of the combined optical fiber, and fluorescent lights of single NV colour centers are received from the other end of the combined optical fiber. In the invention, through carrying out measurement on magnetic fields by using the single NV colour centerspackaged in the optical fiber, the application of a confocal microscope system is avoided, the cost for finding the single NV colour centers is reduced, and the time and manpower are saved; and meanwhile, the magnetic-field measurement can be conveniently performed by using the single NV colour centers in any magnetic-field environment without being limited by the confocal microscope system.

A method of manufacturing a solenoidal magnet structure, includes the step of providing a collapsible accurate mold in which to wind the coils winding wire into defined positions in the mold, placing a mechanical support structure over the coils so wound, impregnating the coils and the mechanical support structure with a thermosetting resin, allowing the thermosetting resin to harden, and collapsing the mold and removing the resultant solenoidal magnet structure formed by the resin impregnated coils and the mechanical support structure from the mold as a single solid piece.

The invention relates to a reinforced concrete shear wall with a positioning prefabricated member inside and a construction method of the reinforced concrete shear wall. The construction method includes: manufacturing the prefabricated member; arranging the prefabricated member on a floor slab structure; making positioning ladder rebars; binding rebars; mounting the prefabricated member; mounting steel formworks; setting up a steel formwork inclined strut. During constructing the reinforced concrete shear wall, vertical ladder rebars and horizontal ladder rebars are adopted as a positioning supporting frame for rebar binding, and the positioning prefabricated member is clamped in horizontally-vertically-distributed rebars, so that thickness of a protection layer is guaranteed and connection of rebar nets is enhanced; the assembly steel formworks are arranged on two sides of the rebar nets, oppositely-puling threaded rods penetrate connecting steel pipes to be fastened on embedded members of the steel formwork inclined strut and the floor slab structure through screws, and concrete is poured to form a shear wall structure. By using the construction method, construction site order and construction efficiency are improved, related measures guarantee construction quality of the shear wall, rebar positioning accuracy and thickness accuracy of the protection layer are improved remarkably, and the construction method has good technical and economic benefit.

The invention discloses an RPA robot intelligent element positioning and picking method and system. According to the method, firstly a problem that a remote desktop, a virtual system and other elements cannot be positioned and operated is solved through employing a computer vision technology combining template matching, OCR and image retrieval, and a proposed new scheme can more accurately and stably locate and pick up the positions and contents of the elements on the picture; secondly, an element positioning scheme based on template matching is adopted, a large number of labeling samples arenot needed, and the scheme is more stable and controllable; thirdly, pixel point features, corner point features and convolution features of a deep neural network are fused, so that the template matching effect is more accurate and stable, and meanwhile, the OCR technology can further assist in positioning elements with text information; and finally, a template library retrieval engine is constructed by adopting an image retrieval technology, and which application the page picture to be processed belongs to can be accurately judged, so that the problem of low retrieval and matching speed caused by template library growth in multiple scenes is solved.

The invention belongs to the technical field of geotechnical engineering model test equipment. The proposed geotechnical engineering anti-explosion structure model test device is composed of a side-limited box body and an explosion pit at the lower part, and is equipped with a matching wave-eliminating mechanism, a locking mechanism and a sliding Positioning mechanism; wave dissipation mechanism includes aluminum wave dissipation grid (21) and wooden wave dissipation plate (20); sliding positioning mechanism includes two-way jack cylinder (15), guide rail (17) and limit block (19); locking The mechanism is composed of a locking pull rod (3), a side limit connecting block (18) and a nut (2). The invention can simulate different explosion forms in equipment with moderate size; meet the convenient and feasible requirements for excavation of caverns, installation of enclosure structures and measurement equipment; it can be reused, and it is beneficial to observe the damage of structures in the test; The results can provide an important basis for underground explosion-resistant engineering design and scientific research.

The invention provides a vertical type ground hinge mechanism. An upper hinge and a lower hinge adopt a sliding friction pair comprising a pair of vertical annular meshing teeth, a meshing surface is a helical surface, the lateral end surfaces of the meshing teeth are vertical stopping surfaces, and the mutual meshing teeth are provided with positioning tooth sockets so as to form the vertical type ground hinge mechanism. The vertical type ground hinge mechanism converts the rotational motion of a hinge mechanism into straight line motion and has the advantages of simple structure, excellent firmness and duration, heavy load-bearing weight and accurate and steady positioning, and can be widely used in opened hinge mechanisms, such as doors, windows, and the like.

The invention discloses a positioning tool for welding a transformer tank, and relates to the technical field of welding and positioning tools. The positioning tool comprises a bottom plate, wherein an inner side positioning mechanism and an outer side positioning mechanism are arranged on the bottom plate. The inner side positioning mechanism is as follows: a plurality of first fixing plates which are vertically arranged are arranged on the bottom plate; a 7-shaped body is arranged on each first fixing plate, and is hinged with each first fixing plate through a first rotating shaft; the vertical section of each 7-shaped body is arranged at one side close to the side of the bottom plate, and is arranged at the upper side of a transverse section; the inner end of the transverse section is hinged with a vertical bar; the bottom end of the vertical bar is connected with a cross bar; the cross bar is connected with a piston rod of a cylinder; the bottom end of the vertical bar is also connected with a spring. The outer side positioning mechanism is as follows: a plurality of second fixing plates which are arranged along the extension direction of the side of the bottom plate are arranged on the edge of the bottom plate; and quick clamps are arranged on the second fixing plates. The tool is capable of quickly positioning an oil tank side plate to be welded, so that the welding is quick and accurate, and is carried out in place.

The invention discloses a tipping device of a molten iron tank pouring station. The tipping device comprises a foundation assembly, a base assembly, a dipping frame assembly and a driving cylinder. The foundation assembly is fixed in the ground through concrete casting. The base assembly is fixedly connected to the upper surface of the foundation assembly, and is provided with a support table, a frame hinge part and a cylinder hinge part. The dipping frame assembly is provided with a first hinge part, a second hinge part, a molten iron tank positioning support device and a support surface; the first hinge part is rotationally connected withe the frame hinge part; and the molten iron tank positioning support device is used for positioning and supporting molten iron tanks. A cylinder body of the driving cylinder is rotationally connected with the cylinder hinge part; and the end part of an extension rod is rotationally connected with the second hinge part. The tipping device is convenient to plan support points and hinge points thereon according to demands through a structure arrangement mode, and guarantees to achieve the function of pouring the molten iron tanks with lower investment and smaller floor area. A guide plate can quickly put and lift the molten iron tanks in and out of the dipping frame assembly to achieve the positioning accuracy.

The invention provides a lifting supporting type elevator shaft formwork device. A bottom supporting start device comprises a rectangular bottom plate, a rectangular barrel, a hydraulic station, a control box and a positioning supporting assembly. An elevator shaft formwork assembly is provided with a rectangular platform plate, vertical folding plates, a rectangular connecting plate, a rectangular connecting frame, a cross-shaped supporting frame and a lifting hook. Multiple horizontally-arranged hydraulic cylinders are further arranged. The execution ends of the hydraulic cylinders are vertically hinged to a rectangular downhole formwork formed by two front and rear first planar formworks, two left and right second planar formworks and four right-angle formworks. Through the combinationof the bottom supporting start device and the elevator shaft formwork assembly, the formworks in an elevator shaft are conveniently laid, a protective platform is formed in the elevator shaft, throughlifting of a tower crane, the above elevator shaft continues to be supported through inserted connection of the positioning supporting assembly and a drum body for facilitating formwork erecting, andthe technical problems that formwork erecting in an existing elevator shaft is inconvenient and not safe, and the formworks are prone to deform during formwork removal are solved.

The invention discloses an electromagnetic fuel injection valve, which comprises a spray pipe inlet. An iron core is arranged in the spray pipe inlet, and a coil is wound on the iron core; the coil is connected with an electrode plate; a spring is arranged in the iron core; one end of the spring is pressed in the iron core, while the other end is pressed on a magnet; a spray pipe main body is sleeved outside the magnet; the spray pipe main body is in sealed connection with the spray pipe inlet; a valve seat is arranged in the spray pipe main body and is provided with a valve hole; and the front end of the magnet is fixed with a steel ball which is matched with the valve hole and is used for closing and opening the valve hole. The injection valve has the advantages of accurate control of oil injection, quick dynamic response, high product stability, simple structure and low processing cost.

The invention discloses an elastic force manipulating structure of a tilt-up door of furniture, which comprises an upturning device, wherein the upturning device comprises a fixed seat, a hinge arm, a spring, a connecting arm assembly and an adjusting assembly which is used for adjusting the magnitude of opening and close force of the upturning device; the connecting arm assembly at least comprises a first connecting arm and a second connecting arm; one end of the first connecting arm is hinged to the fixed seat; the other end of the first connecting arm is hinged to one end of the second connecting arm; the other end of the second connecting arm is hinged to the fixed seat and/or the hinge arm; the first connecting arm and the second connecting arm are hinged by a first pin shaft; a groove is formed in the first pin shaft; one end of the spring acts on the groove; the other end of the spring acts on the second pin shaft of the adjusting assembly; the spring generates displacement relative to the fixed seat by the adjusting assembly under the effect of a tool, and finally, the magnitude adjustment of opening and closing force of the upturning device can be realized. The elastic force manipulating structure of the tilt-up door of furniture has the characteristics that the structure is simple and reasonable, the performance is reliable, the production is easy, the implementation is easy, the adjustment is rapid, the operation is convenient, the use range is wide, the opening and closing are smooth, the collision is small, the noise is low and the like.

The invention discloses a method for performing precision grinding to the end surface of a super-large cylindrical roller. The method is as follows: one end surface of the cylindrical roller is closely adsorbed by a magnetic pole, the rolling surface of the cylindrical roller is positioned on a positioning mechanism which forms a certain angle to the vertical line, the roller rotates in the driving manner of rotating magnetic pole adsorption, the centre line of the roller is parallel to the rotating centre line of the grinding wheel while the roller and the grinding wheel rotate around the separate centre lines; a grinding head provided with the grinding wheel performs axial movement to grind; after the end surface of the roller is grinded, the grinding head moves backward, the processed workpiece is taken down; and another workpiece to be processed is arranged, the above steps are repeated to perform the next processing cycle. Compared with the prior art, the method of the invention can be used to position the workpiece stably and accurately; and the workpiece can operate steadily during processing, the grinding wheel is convenient for dressing, and the feeding position is easy to control.

The invention discloses a modular sensor and a manufacturing technique thereof. The modular sensor comprises a cavity module, a framework module, a circuit board, a Hall chip and a cover plate, the top of the cavity module is opened, a positioning groove is formed in the bottom of the cavity module, and the cavity is integrally injected and molded with PIN needle module; strip through holes are formed in the rear end of the framework module, two position spacing tables are arranged on the upper end surface of the framework module, a positioning lug boss is arranged on the lower end surface of the framework module, and a clamp groove comprising two buckles and one support table and used for accommodating the hall chip is formed in the outer part of the front end of the framework module. The buckle adopts an inner side interference pointed hook part and an end surface hot riveting spur, so as to enable the hall chip to be fixed and confined in the space; the elasticity of the metal PIN needle and the matching structure of the cavity module and the framework module guarantee the framework module to be accurately positioned and fixedly connected in the cavity body module, and prevent the electric element from being damaged after glue flowing uncontrolled cover the electronic element temperature shock; the front end surface of the hall chip and the front cavity surface of the cavity module are closely pressed, but the compression force is not so large as to cause deformation and damage of the cavity module front end, so as to effectively guarantee sensor information.

The invention discloses a lift car positioning device which comprises a positioning device assembly and a limiting sleeve assembly. The positioning device assembly is used for being mounted on a frame of a lift car, and the positioning sleeve assembly is used for being mounted on a steel framework corresponding to the stopping position of the lift car in a parking layer of a stereo garage. The positioning device assembly comprises a hydraulic system, a hydraulic cylinder, a supporting seat and a positioning shaft. The hydraulic system is connected with the hydraulic cylinder, the hydraulic cylinder is fixed on the supporting seat, the positioning shaft is telescopically mounted in the supporting seat, and an extension rod of the hydraulic cylinder is connected with the positioning shaft in the axial direction. The positioning sleeve assembly comprises a positioning sleeve tube, a conical containing space is arranged in the positioning sleeve tube, and the front end of the positioning shaft is matched with the containing space. The invention further discloses the stereo garage with the lift car positioning device. According to the lift car positioning device and the stereo garage, it is guaranteed that the lift car is stably positioned on the parking layer, so that it is ensured that vehicles can come in and out of the parking layer stably and safely.

The present invention discloses an indoor and outdoor integrated positioning and navigation method and system, and relates to the field of positioning fusion. The method comprises: step 1: obtaining GPS, Bluetooth and inertial positioning data; step 2: after performing adaptive weighting, Kalman filtering and distance-based correction on the positioning data to complete positioning solving to obtain a final positioning point; step 3: performing point set division on a navigation line to obtain a reference point for projection calculation, and using a sliding window and curve geometric projection to project the final positioning point onto the reference point of the navigation line to obtain a projection point; and step 4: using the projection point for navigation and map display. Accordingto the technical scheme of the present invention, an adaptive weighting and Kalman filtering model is used to obtain a smooth positioning result, and distance-based correction is performed on the result to obtain stable and accurate positioning, so that the difficulties of the calculation amount, the real-time performance and stability caused by the fusion of inertial positioning, Bluetooth positioning and GPS positioning are overcome, and smooth indoor and outdoor integrated positioning and navigation can be achieved.

The invention discloses a high-performance low-voltage power distribution cabinet remote and on-site monitoring system. The system comprises a low-voltage power distribution cabinet monitoring center,a battery electric quantity remote monitoring system, an on-site diagnosis display system and a low-voltage power distribution cabinet state remote monitoring node. According to the invention, modular splicing is adopted, corresponding modules are selected according to the complexity of controlled equipment, and the system is built by taking a central processing module as the primary and each peripheral module as the auxiliary; a whole network communication module and an Ethernet network module are adopted, so that the optionality of data transmission paths is diversified, wireless 4G/3G/2G and wired Ethernet communication are realized, and the whole network communication module integrates a Beidou and a GPS positioning system and can receive Beidou and GPS signals and provide three-dimensional position information; and the integration level is high, interference resistance is achieved, and stable and accurate positioning can be achieved in a complex environment, a 7-inch touch display screen is adopted, various kinds of collected information and fault information can be displayed, a solution can be displayed when a fault occurs, and fault processing is facilitated.

The invention provides a fully-automatic truck loading method. A fully-automatic truck loader comprises a supporting base device, a main body arm device, a telescopic arm device, a barrel-loading lifting mechanism device, a fall transporting mechanism device and a left-right mechanical truck loading arm device, wherein the main body arm device is fixed above the supporting base device; the telescopic arm device is arranged in the main body arm device; the barrel-loading lifting mechanism device is positioned at the rear end of the main body arm device; the fall transporting mechanism device is fixed above the front end of the main body arm device; the left-right mechanical truck loading arm device is positioned at the rear end of the telescopic arm device. The fully-automatic truck loading method has the benefits that the truck loader is high in degree of automation; the truck loading labor is greatly reduced; the truck loader is controlled under the driving of a servo motor and has an accurate and stable positioning function; barreled water can be handled gently by the truck loader in a similar mode of grabbing an object by an arm of a person, the fatigue feeling is avoided, the influence of a working attitude is eliminated, and the breakage rate of sample barrels is minimized.

The invention discloses a balance calibration loading sleeve. In modes of pin positioning and threaded pressing, a loading nail of the balance calibration loading sleeve disclosed by the invention isfixed on a sliding block, then the position of a loading point can be relatively precise and solid, and through continuous movement of the sliding block in a chute, continuous adjustment and continuous accurate positioning of the position of the balance calibration loading point can be achieved. By adopting the balance calibration loading sleeve disclosed by the invention, in unit calibration of anormal force and a lateral force, interference caused by relatively large additional pitch moments and yawing moments can be avoided; in multi-element calibration, the position of the loading point can be controlled, and the moments can be accurately adjusted according to requirements of a loading table; and by using the balance calibration loading sleeve disclosed by the invention, the positionprecision of the balance calibration loading point can be improved to 0.05mm.

A soft custom ear mold (300) comprising: an inner ear mold part (100) consisting of a first bushing (101), a sound tube (102) and an ear wax guard bushing (103), and an outer ear mold part (200) that is adapted to fit an individual ear canal and comprises a sound conduit having holding means adapted to engage said inner part (100). The holding means defines the correct positioning of said inner part (100) in the sound conduit of said outer part (200) whereby a precise and stable positioning of the ear wax guard bushing (103) in the soft custom ear mold (300) is provided. The invention also relates to a hearing aid comprising such an ear mold (300, 900), a method for manufacturing such an ear mold and a tool for carrying out a part of said manufacturing method.