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.

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 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 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.

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 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 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.