30results about How to "Wide range of positioning" patented technology

The invention relates to a planar spiral microphone array. The planar helix microphone array comprises an array camera, an array main body which are arranged at the center position and a plurality of microphones which are arranged on the array main body; the array main body is a plurality of planar spiral rigid spokes; the planar spiral microphone array is characterized in that: the microphones are distributed on cross nodes of n*n groined lines which are spaced uniformly in a plane, wherein n is an integral multiple of 15 or 21. The number of the planar spiral rigid spokes is 8, each rigid spoke is provided with 8 array elements, and the 64 array elements are distributed on the cross nodes of the 15*15 groined lines. The planar spiral microphone array has a simple and reliable structure,the number of support arms which are connected to each node is a few, influence on a sound field is less, and the detection precision is improved; the planar spiral microphone array adopts a fully rigid structure and is stable and reliable, so that an error which is caused by changes of an effective aperture because of flexible connection is avoided; and the planar spiral microphone array has theadvantages of multiple array element microphones, large information acquisition capacity, high positioning accuracy and wide positioning range.

The invention relates to an automatic guiding system and method applied to an unmanned freight car in an enclosed place, belongs to the field of unmanned driving, and aims at solving the problem that application of unmanned driving to enclosed places as a harbor is high in the reconstruction cost and low in accuracy of automatic driving navigation. Main and auxiliary positioning systems obtain pose information of the central point of the car in real time; a sensing time monitors lanes by detecting, identifying and classifying barriers and determining the running speed; a decision system receives data uploaded by the positioning and sensing systems, makes a decision, and plans a local path; and a control system calculates a control command including the target angle and speed of wheels according to reference point information of the local path planned by the decision system, and issues the control command to an execution mechanism. The system and method are suitable for reconstruction automatic guidance of unmanned driving in the enclosed place, and is high in navigation precision.

The invention provides an automatic quick centring clamping mechanism dedicated for an axle type or cover type part. The automatic quick centring clamping mechanism can carry out automatic centring clamping on the axle type or cover type part and has the advantages of high clamping speed and wide positioning range. The automatic quick centring clamping mechanism comprises a seat body of which the section is of a U shape; a cylinder is arranged below the base; a sliding connecting rod shaft is movably arranged in a chute in the lower end surface of the seat body; the cylinder is connected with the sliding connecting rod shaft via a piston rod; two sliding blocks are symmetrically arranged on the left and the right in an upper slideway of the seat body; the seat body above the two sliding blocks is provided with a platen; two connecting rods are symmetrically arranged in the inner cavity of the seat body; one end of each connecting rod is connected with the sliding connecting rod shaft via a hinge pin; the other ends of the connecting rod are respectively connected with two sliding blocks via hinge pins; the two sliding blocks are respectively movably provided with two centring elements via T-shaped grooves; the two centring elements are respectively fixedly arranged on two sliding blocks via two locking blocks and locking bolts.

The invention disclose a mechanical processing positioning device, which comprises a base (1), an adjusting support assembly and an adjustable clamping mechanism, wherein the adjusting support assembly comprises a cylindrical taper pin (5), a compression spring A (6) and a screw plug (7), the cylindrical taper pin (5) is arranged in an inner cavity (2), the adjustable clamping mechanism comprises an adjusting screw rod (10), a press plate (11) and a compression spring B (12), the press plate (11) and the compression spring B (12) are sheathed outside the adjusting screw rod (10), and the adjusting screw rod (10) penetrates through a through hole (3) arranged on the base (1) and is fixed by a locking screw bolt (16). The mechanical processing positioning device has the beneficial effects that the diameter of the large end of a cone front part (8) is greater than the diameter of a blank hole, the wider positioning range is realized, the cylindrical taper pin (5) is tightly matched with the blank hole by the adjusting support assembly via the extension and retraction of the compression spring A (6), the influence of size and roundness errors of the blank hole can be overcome, the matching clearance is eliminated, and the positioning error is greatly reduced.

The invention relates to a device for robot hole making positioning and normal direction measurement, comprising an array photosensitive and infrared light emitting module, the array light emitting module can be adjusted to emit light intensity signals of different frequencies and different powers; The light from the emitting unit is sent to the surface of the measured object; the TOF array photosensitive distance detection module provides the distance data between the surface point of the measured object and the array photosensitive device, and the normal direction of the object surface can be calculated from the array distance value; the fine-tuning mechanism is driven , through normal measurement to determine the verticality deviation between the actuator and the hole-making position, and feed back the determined deviation to the drive fine-tuning mechanism to meet the verticality requirements of the hole-making machining axis. The sensing device in the present invention can provide more accurate and robust hole-making positioning and normal measurement data in the spatial area of ​​the surface of a special object, such as the edge and the vicinity of the porous surface, by using the depth image processing method.

The embodiment of the invention discloses a positioning communication device, a positioning method and a computer storage medium. The positioning communication device comprises at least two positioning antenna groups and at least one positioning signal for receiving a beacon transmission, wherein the positioning antenna group comprises two positioning antennas which are separated and arranged, andthe positioning ranges of different positioning antenna groups are at least partially different; a selection switching module which is respectively connected with the at least two positioning antennagroups. The positioning communication device also comprises a processing module which is connected with the positioning antenna group through the selection switching module. The processing module isused for controlling the positioning antenna group which is conducted by the selection switching module according to the orientation information of the first time of the beacon, and the orientation information of the current time of the beacon is determined according to the positioning signals received by the conductive positioning antenna group.

The invention relates to the field of machining, in particular to a positioning pin. The positioning pin comprises a base and an adjustable clamping mechanism. The positioning pin is characterized in that a sliding groove is formed in the base; a cylinder capable of sliding in the sliding groove is arranged in the sliding groove; a compression spring is arranged at the bottom of the cylinder; and a circular truncated cone is arranged above the compression spring and is in sliding fit with the cylinder. The adjustable clamping mechanism comprises a blind hole in the base. An adjusting screw is fixedly arranged at the bottom of the blind hole. The adjusting screw is sequentially sleeved with an adjusting screw, a tubular body and an adjusting nut from bottom to top. A flat panel is arranged at the upper end of the tubular body. Sawteeth are arranged on the side, facing the sliding groove, of the tubular body and the lower surface of the flat panel. A vertical vent hole is formed in the circular truncated cone. The positioning pin is not affected by the size of a blank hole or the circularity error, the fit clearance between the blank hole and the positioning pin can be eliminated, positioning errors are reduced, and the positioning pin is convenient to use, capable of saving time and labor and firm in positioning.

The invention discloses a three-dimensional display system based on spatial positioning. The three-dimensional display system comprises a desktop three-dimensional display module and a spatial positioning module, the desktop three-dimensional display module comprises a binocular projection assembly and a three-dimensional host assembly. The space positioning module comprises a tracker positioningassembly and a base station positioning assembly; the tracker positioning assembly is connected with the base station positioning assembly and the three-dimensional host assembly. The three-dimensional host assembly is connected with the binocular projection assembly. The tracker positioning assembly is used for feeding back the position of a viewer in real time and sending an ultra-wideband pulsesignal to the base station positioning assembly. According to the three-dimensional display system, the interactivity and the viewing angle of the display system can be enhanced, the application scene of three-dimensional display is expanded, meanwhile, multiple problems existing in the space positioning technology are solved, and the space positioning system which is high in positioning speed, wide in positioning range, low in cost and high in precision is achieved.

The invention relates to an adjusting type automatic positioning device for a bottle blowing machine. The automatic positioning device comprises a supporting base, a supporting plate, a guide plate, an air cylinder and a control signal input end, the automatic positioning device is characterized by further comprising a positioning adjusting part, wherein the front end of the positioning adjustingpart is provided with a screw joint end opening and a supporting connection end, the screw joint end opening is used for connecting with a piston rod of the air cylinder, and the supporting connectionend is used for connecting with a guide rod to form a sliding support structure of the positioning adjusting part; the rear end of the positioning adjusting part is connected with a positioner, a front and back position adjusting connecting structure is arranged at the joint of the positioning adjusting part and the positioner to form one of front and back position adjusting structures, and the piston rod is connected with the screw joint end opening through an adjusting nut to form the second of the front and back adjusting structures; the guide rod penetrates through the guide plate to be connected with the supporting connection end, and the guide plate is fixed on a cylinder body of the cylinder; and a control input end communicates with a cylinder control input end to form an adjusting type automatic positioning structure. The adjusting type automatic positioning device for the bottle blowing machine has the characteristics of being adjustable in positioning position, applicable to multi-specification product positioning, wide in application range and the like.

The invention discloses a material damage positioning device, a positioning method and a verification method. The positioning device comprises at least two sensor groups and a position calculation module; each sensor group comprises at least three acoustic emission sensors, a first sensor group is arranged at a first preset distance from a to-be-detected area, and a second sensor group is arranged at a position with a second preset distance from the to-be-detected area; and the position calculation module is connected with the acoustic emission sensors in the sensor group and is used for calculating the damage position according to the signals received by the sensor group. The method is low in cost, does not need to consume more manpower and material resources, is simple in equipment, is small in number of sensors, is simple in layout of the sensors, is wide in positioning range, does not need priori knowledge, is suitable for the composite material, and does not need to know the propagation velocity distribution and mode of a damage signal in the anisotropic composite material compared with a conventional positioning algorithm, and a nonlinear system equation does not need to be solved.

The invention discloses a television broadcast signal forwarding and positioning method and device. Positioning is achieved by building a television broadcast signal forwarding system. The method comprises the following steps of: original and forwarded television broadcast signals are used for positioning; one or more television broadcast signal forwarding stations are erected outside a building;when a forwarding station is erected, signals of at least two television broadcast transmitting stations are forwarded; at least two paths of television broadcast signals are received by using the precise positions of all transmitting stations and then receiving at least two paths of television broadcast signals by using a receiver, and obtaining the propagation time difference of each path of signals through related processing, namely a TDOA (Time Difference Of Arrival) measurement value, so as to finally realize positioning. According to the invention, a television broadcast signal can be independently used for positioning, assistance of other external radiation source signals is not needed, a large amount of pre-measurement is not needed before positioning, real-time positioning can berealized, the positioning range is wide, and the practicability is high.

The invention discloses a multi-antenna RFID reader-writer, and belongs to the field of RFID ultrahigh frequency reader-writers. The multi-antenna RFID reader-writer comprises a PDA terminal, a positioning module, an MCU processor, a high-frequency module, a radio frequency control unit and an antenna matrix. A plane-coordinate system is constructed through the antenna matrix, and all tag information read by the antenna matrix is sorted to form an information sorting table of each tag; after a target tag is selected, an antenna unit where the target tag is located is determined through an information sorting table of the target tag, three read-write antennas with the first three RSSI signal strength values of the target tag are determined, and then a unique target antenna unit can be determined; after the target antenna unit where the target tag is located is determined, six read-write antennas of the target antenna unit are measured and calculated through an LANDMARC algorithm, and the position of the target tag can be accurate. The method is wide in positioning range, low in missed reading rate and missed degree rate, and beneficial to market promotion.

A glass fiber reinforced plastic pipeline positioning instrument comprises a rack, an air pressure assembly, a horizontal plane positioning assembly and pipeline positioning assemblies. The air pressure assembly and the horizontal plane positioning assembly are arranged on the rack; and the pipeline positioning assemblies are arranged at the positioning end of the rack and communicate with the air pressure assembly. According to the glass fiber reinforced plastic pipeline positioning instrument, the air pressure assembly and the pipeline positioning assemblies are arranged, telescopic air bags are inflated through a sliding plate and an inflation part at the position of a grip, buffer plates and positioning plates conduct positioning according to the shape of a glass fiber reinforced plastic pipeline, the positioning efficiency and accuracy are improved, by locking the telescopic air bags and closing an air valve, the shape of the glass fiber reinforced plastic pipeline is integrally transferred out, and observation and measurement are facilitated; by arranging the horizontal plane positioning assembly, the whole device is positioned, by arranging telescopic plates, the positioning range of a horizontal plate is wider, and the universal applicability of the device is higher; and by arranging a diameter measuring assembly, a worker can conveniently record basic data of the glass reinforced plastic pipeline while positioning the glass reinforced plastic pipeline, and the working efficiency is improved.

The invention discloses a method and device for positioning user equipment, and a server, is used for the technical field of communication, and can solve the problem in the prior art that a UE positioning method is relatively narrow in range of application and is unsuitable for UE positioning in other ordinary LTE network cells. The method includes estimating related data of a base station antennain a serving cell based on obtained original drive test data of the serving cell; obtaining a measurement report MR sent by user equipment to be positioned; preprocessing the MR according to a presetpropagation model to obtain related data of the base station antenna corresponding to the MR; and positioning the user equipment based on the related data of the base station antenna corresponding tothe MR, estimated related data of the base station antenna and original drive test data.