199results about How to "Improve location accuracy" patented technology

A system and method for determining the position of people and / or objects, whether mobile or stationary, is presented herein. The system uses fixed and / or portable FM transmitters to transmit synchronized signals. These signals are acquired by a Receiver device which uses the signal timing to perform Time Difference of Arrival calculations to determine the Receiver's location. Then, using some arbitrary communications method, such as wireless communications, the Receiver device can forward its location to some arbitrary type of application system.

The invention provides a power system three-dimensional device scene modeling method which comprises the following steps: establishing all sorts of three-dimensional device assembly models in the three-dimensional scene by adopting the virtual technology; uploading the three-dimensional device assembly models into a three-dimensional assembly library through a client side; accessing to a server side through the client side, and acquiring the three-dimensional device assembly models needed by the three-dimensional scene modeling from the three-dimensional assembly library; building a three-dimensional device scene model by adopting the three-dimensional device assembly models; guiding the built three-dimensional device scene model into a power system simulating system, and carrying out simulating training and visual display or virtual test. Because the modeling process comprises the assembly modeling stage and the scene assembling stage, the scene modeling difficulty is reduced, the scene modeling efficiency is improved, the models have high reusability, particularly the team can carry out modeling cooperatively, the position of the device assembly is accurate in the virtual scene, the later maintenance workload is low, and the later maintenance process is simple and not difficult.

Provided is a method for correcting a non-line-of-sight (NLOS) error in a wireless positioning system that enhances the location accuracy of a mobile station by correcting location error caused by NLOS propagation when the mobile station is positioned in a wireless mobile communication environment, and a computer-readable recording medium for recording a program that implements the method. The method checks out the location of the MS in the above environment and provides diverse services by correcting the location error caused by NLOS propagation included in a received signal. That is, a user can enjoy a high-quality location service by receiving the location information only within the radius which user wants, such as traveler's information, vehicle tracking, location service, and location-based advertisements, because the location of the user's MS is detected precisely.

An eye location method and device includes: receiving a face image; locating a position of a nose and positions of eyes in the face image; determining a facial symmetry axis according to the position of the nose; and regulating the positions of the eyes by the facial symmetry axis to obtain target positions of the eyes. By the method and the device, the problem of poorer eye location accuracy in the conventional art is solved, and the effect of improving eye location accuracy is further achieved.

The invention provides a stent conveying device, which comprises a connecting part, an outer tube, an inner tube and a balloon. The outer tube is connected with the balloon and the connecting part, the inner tube penetrates through the inside of the outer tube and the inside of the balloon, the connecting part is communicated with the balloon via a joint of the connecting part and through an inner cavity between the outer tube and the inner tube, the outer tube comprises a far outer tube portion and a near outer tube portion, the far outer tube portion is located at a far end of the outer tube, and the near outer tube portion is located at the near end of the outer tube. The stent conveying device is characterized in that at least one of the far outer tube portion and the near outer tube portion comprises at least two layers, and materials and structures of the at least two layers can strengthen positioning accuracy of the stent conveying device. According to the invention, an outer tube structure with the special design is provided, and accordingly, the positioning accuracy of the stent conveying device can be improved.

This disclosure provides methods and systems for locating wireless mobile devices in an area, for example, using an unmanned aerial vehicle. An unmanned aerial vehicle may receive a wireless signal with identification information from a mobile device. The unmanned aerial vehicle may fly in wireless communication range with the mobile device; measuring, representative parameters related to the received wireless signal and associating the value of measured representative parameters with the mobile device identification and with the location of the unmanned aerial vehicle at the time the wireless signal was received and estimating, the location of the mobile device in the area based on the value of measured representative parameters and the location of the unmanned aerial vehicle at the time it received the wireless signal. The measurement of the representative parameters may be time-stamped and the location of the unmanned aerial vehicle at the time the wireless signal was received may be calculated based on the time stamp and flight information of the unmanned aerial vehicle.

The invention provides a feeding device of a packaging machine. The feeding device comprises a hopper. The feeding device is characterized by further comprising a bag opening expanding mechanism and a bag opening pressing mechanism, wherein the bag opening expanding mechanism comprises at least one left moving sheet and at least one right moving sheet; the left moving sheets are rotatably arranged on the left side edge of a discharge hole of the hopper, and the right moving sheets are rotatably arranged on the right side edge of the discharge hole of the hopper; the bag opening expanding mechanism further comprises a moving sheet driving mechanism for driving the left moving sheets and the right moving sheets to rotate; the bag opening pressing mechanism comprises at least one left pressing block and at least one right pressing block; the left pressing blocks are equal to the right moving sheets and are correspondingly matched with the right moving sheets; the left pressing blocks are equal to the right moving sheets and are correspondingly matched with the right moving sheets; and the bag opening pressing mechanism further comprises a pressing block translation mechanism. The feeding device for the packaging machine can ensure that materials in the hopper are fed into packaging bags smoothly, and bag openings can be kept stable during feeding; and the feeding device also can avoid the phenomenon of dislocation or twisting of the packaging bags, thereby ensuring high position precision and flatness of the follow-up procedure of sealing of the openings.

The invention relates to the technical field of electronic product processing equipment, particularly to a feeding method capable of changing a bulk material into a tubed material. In the method, a special-shaped component arranging packing machine packages electronic components in bulk in feeding boxes, and places the feeding boxes on a feeding mechanism of a special-shaped component plug-in machine for feeding. In comparison with the prior art, the method is characterized in that the special-shaped components are orderly placed in each guide rail of the feeding boxes through a vibration disk of the special-shaped component arranging packing machine, a feeding box left-to-right moving mechanism can drive the feeding boxes to move from left to right, the components in bulk are fed in a more regular tubing manner, so that the components can be plugged by the plug-in machine conveniently, and the feeding boxes are placed on the feeding mechanism for supplying the components to the plug-in machine, so that the components are avoided from being supplied to the plug-in machine directly through a vibration feeder, and position accuracy of the electronic components can be improved.

The embodiment of the invention provides a method and a device for acquiring navigation information. The method comprises the steps of acquiring the information of a navigation route of a terminal on which a client is arranged, acquiring a target reference aiming at the position of the change of direction, and acquiring the navigation information according to the direction indication information corresponding to the target reference and the position of the change of the direction. According to the technical scheme, the problem that the navigation information cannot be accurately acquired in time in the prior art can be avoided, and the reliability of the navigation information can be improved.

The invention provides an image table exporting method and system, a storage medium and equipment. The method comprises the steps: obtaining contour information of a table in a scanned image; performing row and column division on the table based on the contour information to obtain row and column information and row and column index serial numbers of the table; comparing the row and column index serial numbers with the row and column information, and judging whether rows and columns of the table have a merging relationship; and if so, splitting the table according to the row and column index serial numbers and the row and column information and outputting the table. According to the scheme, by detecting the contour information of the table in the scanned image, dividing the table into rowsand columns of cells and intercepting the divided row and column information for recognition, the accuracy and position accuracy of character recognition are effectively improved; in addition, the merging relation of the cells is calculated, so that an identification result can be exported as a table file for a user to perform further data analysis; and the technical problem that in the prior art, a scheme for determining the table position through the intersection relation of straight lines cannot identify cell merging information is solved.

An autonomous system with no Customer Network Investment is described, wherein the system is configurable to operate on a band other than the LTE band. Such system allows the definition of hybrid operations to accommodate the positioning reference signals (PRS) of LTE and already existing reference signals. The system can operate with PRS, with other reference signals such as cell-specific reference signals (CRS), or with both signal types. As such, the system provides the advantage of allowing network operator(s) to dynamically choose between modes of operation depending on circumstances, such as network throughput and compatibility.

The invention provides a power system three-dimensional device scene modeling method which comprises the following steps: establishing all sorts of three-dimensional device assembly models in the three-dimensional scene by adopting the virtual technology; uploading the three-dimensional device assembly models into a three-dimensional assembly library through a client side; accessing to a server side through the client side, and acquiring the three-dimensional device assembly models needed by the three-dimensional scene modeling from the three-dimensional assembly library; building a three-dimensional device scene model by adopting the three-dimensional device assembly models; guiding the built three-dimensional device scene model into a power system simulating system, and carrying out simulating training and visual display or virtual test. Because the modeling process comprises the assembly modeling stage and the scene assembling stage, the scene modeling difficulty is reduced, the scene modeling efficiency is improved, the models have high reusability, particularly the team can carry out modeling cooperatively, the position of the device assembly is accurate in the virtual scene, the later maintenance workload is low, and the later maintenance process is simple and not difficult.

The invention discloses an unpowered automatic limiting and adjusting device based on conveying equipment. The unpowered automatic limiting and adjusting device comprises angle adjusting and installing bases, horizontal adjusting supports, vertical supports and limiting mechanisms, wherein each angle adjusting and installing base is a plate, one side of each angle adjusting and installing base comprises a first surface and a second surface, groove openings are formed in the other opposite side of each angle adjusting and installing base, each horizontal adjusting support is of an angular shape, each vertical support is of an angular shape, and a guide column is fixed on one surface of each vertical support and is provided with a through hole with a single freedom degree in the axial direction. According to the unpowered automatic limiting and adjusting device, an object positioning and conveying device is designed for the existing conveying equipment, the position of an object is adjusted by arranging the angle adjusting and installing bases, the horizontal adjusting supports, the vertical supports and the limiting mechanisms, so that the object moves along a straight line, the position of the object is conveyed according to a set route, and the position accuracy of object conveying is improved.

An improved two-way tagging tracking and locating system uses time of arrival (TOA), Doppler, and angle of arrival (AOA) in conjunction with remote tags and a locator. The locator's antenna is tethered to a central point, and moved in a constrained motion so that it describes a roughly circular horizontal path. The locator transmits and receives sets of complex radio sequences to / from the tag(s) so that the tag(s) emit signals which are phase, chip, and symbol coherent with the received locator signals. This enables the locator to determine the distances and Doppler shifts between itself and the tag(s) at various positions in its path such that, by post correlation processing of complex captured signal sequences, aims a virtual phased array antenna at the tag(s), resulting in enhanced distance and direction measurements. The angular position of the orbiting locator's antenna may be measured using an electronic compass packaged with the antenna.

The invention relates to the field of positioning, and discloses a positioning method and device of a mobile terminal. The positioning method of the mobile terminal comprises the steps of obtaining a scanning fingerprint of a wireless signal at the position where the mobile terminal is; matching a fingerprint database based on the scanning fingerprint to obtain N anchor points with the highest matching score; generating a particle group based on the N anchor points; performing particle filtration on the particle group based on inertial navigation information to obtain alternative particle groups; determining the current movement model of the mobile terminal and performing particle scoring on the alternative particle groups based on the characteristics of the movement model; and obtaining a positioning solution of the mobile terminal based on the particle scoring result. The drifting and jumping probability of the positioned position can be reduced, the positioning track is enabled to be continuous, and the position positioning is accurate.

The invention relates to a mounting bracket capable of being regulated in multiple directions for a spray head of an ink-jet printing machine. The mounting bracket comprises a bracket base, a horizontal lead screw pair, a perpendicular lead screw pair, a spray head connecting plate and a hinge clamping device, wherein a bracket carriage is inserted into the bracket base; the horizontal lead screw pair is arranged on the bracket carriage; the horizontal lead screw pair comprises a horizontal lead screw, a horizontal lead screw base, a horizontal carriage and a horizontal hand wheel; the horizontal hand wheel drives the horizontal lead screw and drives the horizontal carriage to move front and back; the perpendicular lead screw pair is arranged on the horizontal carriage; the perpendicular lead screw pair comprises a perpendicular lead screw, a perpendicular lead screw base, a perpendicular carriage and a perpendicular hand wheel; the perpendicular hand wheel drives the perpendicular lead screw and drives the perpendicular carriage to move up and down; and the hinge clamping device is arranged on the perpendicular carriage and is detachably connected with the spray head connecting plate. The mounting bracket is reasonable in structure, is simple to operate, is accurate in spraying positioning, is quick in regulating direction and is low in production cost.

The invention discloses an appointment vehicle parking and picking-up method and system for a three-dimensional parking garage, and belongs to the field of mechanical parking device control methods. According to the appointment vehicle parking and picking-up method and system for a three-dimensional parking garage, a three-dimensional parking garage is improved, a pre-parking device is arranged onthe bottom layer of the three-dimensional parking garage, and vehicles can directly drive in or drive out of the pre-parking device. When the vehicle is parked, the vehicle can be parked on the pre-parking device in advance, a vehicle owner does not need to wait for a parking space before parking, the parking time of the vehicle owner is saved, the vehicle can be transferred to the pre-parking device in advance when the vehicle is taken, the waiting time for the vehicle owner to take the vehicle is shortened, the intelligent appointment vehicle parking and picking-up function is achieved, thevehicle parking and picking-up efficiency is greatly improved, and the flexibility and practicability of parking and picking up the vehicle in the three-dimensional parking garage are improved.

The invention discloses a system for achieving the real-time exchange of the outdoor monitoring data of a hydrological environment, and the system is characterized in that the system comprises a hydrological environment monitoring instrument, a mobile terminal, a central database, an overall processing module, a geographical information database, a task database, a task processing module, an employee database, a personal task list, a short message gateway cross certification system, and an instrument database. The invention relates to the field of hydrological environment outdoor monitoring, especially the system for carrying out real-time data exchange in the outdoor monitoring of the hydrological environment. The beneficial effects of the invention are that the system technically guarantees the real-time synchronism and safety of data; the system improves the position precision of section measurement; the system enables the monitoring data to be corrected and checked in real time, reduces the invalidation and repeated measurement of emergency monitoring data, improves the reliability of emergency monitoring data, and prolongs the forecast period of pollutant dispersion.

The invention relates to a semiconductor structure and a forming method thereof. The forming method comprises the steps of: providing a base comprising a substrate and a plurality of discrete fins onthe substrate, wherein the base comprises adjacent device regions and a single diffusion break region; forming a plurality of discrete gate structures across the fins, wherein the gate structures cover part of the top portions and part of the side walls of the fins of the device regions and the single diffusion break region; forming source and drain doped regions in the fins on two sides of the gate structures of the device regions; forming first dielectric layers covering the side walls of the gate structures on the substrate after forming the source and drain doped regions; sequentially etching the gate structure of the single diffusion break region, the fins positioned at the lower portions of the gate structures and the substrate with partial thickness, wherein the first dielectric layers, the fins and the residual substrate of the single diffusion break region form a groove; forming a single diffusion break structure in the groove. By forming the source and drain doped regions firstly, the position accuracy of the groove can be improved, so that the isolation effect of the single diffusion break structure is improved.

The invention discloses auxiliary welding equipment for a box type steel component and a machining process of the auxiliary welding equipment, and relates to the technical field of steel structure machining. The auxiliary welding equipment for the box type steel component comprises a jig frame and further comprises a main body positioning device, a welding supporting device and a control system; the main body positioning device is used for fixing and positioning a bottom plate and a top plate; the welding supporting device is used for temporarily fixing and positioning partition plates and side plates; and the control system is a programmable logic controller and is electrically connected with the positioning device and the welding supporting device. In the auxiliary welding equipment, the design positions of all parts of the box-type steel component are programmed in the control system, then the main body positioning device and the welding supporting device are controlled to work through the control system, and all the parts of the box-type steel component are positioned, so that the position accuracy of all the parts of the box-type steel component is improved, and the product quality of the box type steel component is ensured; and the processing efficiency is greatly improved.

The invention discloses a shaft gravity type stock bin. The stock bin comprises a supporting frame, a storage bin installed on the supporting frame and a jacking feeding mechanism installed in the front end face of the storage bin, a fixed side plate and an adjusting side plate are arranged in the storage bin in parallel, and the position of the adjusting side plate is adjustable, so that a widthadjustable feeding bin is formed between the adjusting side plate and the fixed side plate; the feeding mechanism comprises a jacking air cylinder, a telescopic rod of the jacking air cylinder is connected with a sliding block, an adjusting plate is connected with the sliding block through a connecting block, a feeding base is installed at the upper end of the adjusting plate, a discharging platform plate is obliquely installed at the top of the front end face of the storage bin, a V-shaped material frame is installed at the front end of the discharging platform plate, and the jacking air cylinder is cooperated with the feeding base, the oblique bottom face and the feeding platform plate. Thus, a bar material rolls into the V-shaped material frame through the dead weight of the bar material itself, and automatic feeding of the bar material is realized effectively.

The invention discloses position request processing equipment and method, position information acquiring equipment and method, a mobile terminal and a position information processing system. The position request processing equipment and method and the position information acquiring equipment and method are aimed to overcome the problem that the prior art is incapable of actively acquiring the geographic positions of the other users. The position information acquiring equipment comprises a request sending unit suitable for sending position request information to a requested party in a predetermined form, a reply receiving unit suitable for receiving reply information from the requested party, a reply judging and analyzing unit suitable for judging whether the reply information is position reply information and analyzing the reply information if the reply information is position reply information, and a storage unit suitable for storing position information of the requested party in the analyzed result. The position request processing equipment comprises a request receiving unit, a request judging and analyzing unit, an acquiring unit and a position information sending unit. The position request processing equipment and method and the position information acquiring equipment and method can be used for the communication field.

The invention discloses automatic leaf spring locking equipment for heaters. The automatic leaf spring locking equipment for the heaters comprises a frame, wherein an operating platform is arranged on the frame; an indexing disc is arranged on the surface of the operating platform; a rotating mounting plate is arranged on the indexing disc; heater shelves are uniformly arranged on the surface of the rotating mounting plate along the same circumference; and a feeding part, a dislocated supply mechanism, an automatic screw locking mechanism, a defective product capturing mechanism and a non-defective product capturing mechanism are further successively arranged on the operating platform along the periphery of the rotating mounting plate. The automatic leaf spring locking equipment for the heaters is reasonable in design and compact in structure, can automatically finish feeding and locking, and is high in degree of automation, high in yield and high in speed.

The invention relates to the field of construction of underwater reinforced concrete precast slab piles, in particular to a piling device and method for construction of an underwater reinforced concrete precast slab pile. The piling device comprises a hull, a piling machine and a positioning device, a square receding groove is formed in the hull, and the piling machine is fixed to the upper part of the hull and located at one end of the receding groove; and a horizontal guide rail is fixedly arranged on the hull, the guide rail is flush with the receding groove in direction, the positioning device comprises a moving positioning mechanism, the moving positioning mechanism comprises a sliding block, a guiding sleeve, a moving positioning pile and a fastening structure, the sliding block is slidably connected with the guide rail, the fastening structure is used for maintaining the relative position between the sliding block and the guide rail, the guiding sleeve is fixedly connected withthe sliding block, and the moving positioning pile is vertically and slidably connected with the guiding sleeve. The hull is fixed relative to the river bottom through the moving positioning pile andother fixing structures, then the slab pile is hoisted and driven into the river bottom through the piling machine, the purpose of overwater piling is realized, the construction cost is greatly lowered, and the construction time is shortened greatly.

The invention provides an ultrasonic navigation system and method, and relates to the technical field of ultrasonic assisted scanning. The ultrasonic navigation system comprises ultrasonic equipment used for performing scanning to obtain a target section image, a pose acquisition device used for acquiring real-time pose information of an ultrasonic probe, and a data processing device used for processing the target section image according to a standard section image to obtain offset position information. During the first scanning, the offset position information is fed back to the ultrasonic equipment as the current offset data of the ultrasonic probe, and an operator adjusts the scanning position according to the current offset data, carries out processing to obtain current offset data ofthe current scanning position according to the offset position information and the real-time pose information of the current scanning position and the offset position information and the real-time pose information of the previous scanning position, and feeds back the current offset data to the ultrasonic equipment until the current offset data meets a preset offset threshold value, thereby finishing a scanning navigation process. The system and the method have the advantages that real-time ultrasonic navigation information is provided for operators, and dependence on ultrasonic scanning experience of the operators is not needed.

The invention provides a bearing apparatus and semiconductor processing equipment. A pedestal and a bearing component are included. The pedestal comprises a first bearing surface used for bearing a wafer. The bearing component adopts a one-piece structure and comprises a center shaft and a support portion. On the pedestal, a through hole is arranged at a center position of the first bearing surface. The center shaft vertically passes through the through hole and can carry out lifting motion relative to the pedestal. The support portion is arranged on a top end of the center shaft. A concave portion is arranged on the first bearing surface. When the center shaft is dropped to a lowest position, the support portion is located in the concave portion, and the support portion is not higher than the first bearing surface. When the center shaft is risen to a highest position, the support portion is located above the first bearing surface. By using the bearing apparatus, precision of wafer taking and placing can be increased, position accuracy of the wafer can be increased too, and machining and an electrical design are simple and easy to perform so that the apparatus and the equipment can be applied to a multi-chip system.

The invention relates to the field of automatic cone yarn packaging equipment, in particular to a cone yarn packaging line. The cone yarn packaging line comprises a counterweight mechanism used for cone yarn grouping and selecting, a film sleeving mechanism used for wrapping packaging films on cone yarns and a bagging mechanism used for automatically bagging the cone yarns, wherein the counterweight mechanism, the film sleeving mechanism and the bagging mechanism are sequentially arranged. According to the cone yarn packaging line, the packaging tasks of a series of procedures of counterweight, overturning, film covering, bagging and stacking can be completed; the produced cone yarns are subjected to weight screening, grouping counterweight is carried out according to the screening result,and the packaging counterweight precision is improved; staggered overturning is completed in the cone yarn conveying process, subsequent packaging is facilitated, and meanwhile, the cone yarn conveying efficiency is not affected; and during film covering, a conveying mode that a conveying belt replaces the intermittent movement of an air cylinder is adopted, and the conveying efficiency of the cone yarns and the position accuracy in the conveying process are improved.