187results about How to "Fast positioning" patented technology

The invention relates to an intelligent video monitoring system based on a three-dimensional virtual scene, comprising a video collection subsystem, an intelligent video analysis subsystem, a comprehensive display subsystem, a calibration and positioning subsystem, a comprehensive management subsystem, a retrieval playback subsystem, and the like, wherein the video collection subsystem collects amonitoring video; the intelligent video analysis subsystem detects, identifies and tracks a movement target in the video and then classifies the movement target; the comprehensive display subsystem displays a bidimensional video and the three-dimensional virtual scene of the target, and displays the movement target category and a path thereof in the superposing manner in real time in the three-dimensional virtual scene; the calibration and positioning subsystem realizes the positioning of the bidimensional target in the three-dimensional virtual scene on the basis of acquiring parameters inside and outside a camera; the comprehensive management subsystem is responsible for managing and scheduling tasks, such as the system configuration, the log generation and retrieval, the authority hierarchical management, the defense area configuration and defense arrangement/defense withdrawing, the target video storage, the system alarming output, and the like; and the retrieval playback subsystem retrieves, edits and playbacks the target video with an event as a main line.

The invention provides a system and a method for positioning ground targets of unmanned planes based on enhanced geographic information. The system comprises an unmanned onboard system, a data transmission module and a ground station control system, wherein the unmanned plane onboard system is used for interacting information with the ground station control system by virtue of the data transmission module; the unmanned onboard system comprises a real scene collecting module, a GPS positioning module and a posture collecting module; the ground station control system comprises an electronic map database, a projection module, a positioning module and a traversal module. The system and the method have the advantages that positioning values of target points can be obtained by only matching real scene images with a three-dimensional map without the need of the complex image processing algorithm by virtue of a simple fitting method. Therefore, the ground scene targets in the large range can be accurately positioned; since the positioning algorithm is simple, the positioning rate is high; the requirements of tracking the targets in real time can be met.

The invention discloses a wireless sensor network multiple target real-time tracking system based on event drive. The system is designed by using a hierarchy logical structure, wherein a perception layer, a network communication layer and an application layer are respectively comprised. In order to avoid network conflict in a multiple target tracking process, a self-adaption clustering node scheduling strategy based on a task is used. A Calman filter positioning tracking algorithm based on event drive is disclosed. A least square method with fast convergence speed is used to modify a current Calman filter state value, and positioning tracking is carried out on a number of mobile robots in a sensor network. The system uses a double token working mode and is combined with a dynamic time slot allocation method based on a task to effectively complete a network task in real time. The system uses the self-adaption clustering node scheduling method, can automatically carry out clustering on measurement data according to a moving target, breaks a previous working mode which is limited by single target tracking, and realizes a real-time multiple target tracking function and remote feedback control based on a wireless network.

The invention discloses a motion collecting and feedback method and system based on stereoscopic vision. The method comprises the following steps that the space position of an infrared light source in an attachment position in a front space is collected, the space position is mapped into a virtual space, and the position and direction of a virtual object are controlled; when the virtual object interacts with a virtual environment, a wireless control attachment device vibrates and simulates the feedback feeling of force. The motion collecting and feedback method and system based on stereoscopic vision have the advantages that positioning is rapid and accurate, and operation is stable; the hardware is quite low in cost, simple in structure and quite small in size; force feedback is achieved and can largely improve the sense of reality of interaction behaviors, and user experience is improved; the reality function is improved, and the man-machine interaction modes are increased.

The invention discloses positioning system and method of the local discharge of a transformer, belonging to the technical field of discharge monitoring of the transformer. The positioning system comprises an ultrahigh-frequency sensor, a detector amplifier, an ultrasonic sensor array unit, a filter amplifier, a multi-channel synchronous data acquisition unit and a data processor. The positioning method comprises the following steps of: acquiring an ultrahigh-frequency electromagnetic signal and an ultrasonic signal, comparing the ultrahigh-frequency electromagnetic signal with the ultrasonic signal, determining the time-domain relation of the ultrahigh-frequency electromagnetic signal and the ultrasonic signal, and calculating the distance between a local discharge source and the geometric center of the ultrasonic sensor array unit according to the time-domain relation; then determining an azimuth angle and a pitching angle of the local discharge source relative to a plane with the ultrasonic sensor array unit positioned by utilizing the ultrasonic signal; and finally determining the specific position of the local discharge source according to the calculated distance, azimuth angle and pitching angle. The invention has high positioning speed and high positioning accuracy.

The invention discloses a robot global repositioning method, and belongs to the technical field of robots. The robot global repositioning method comprises the following steps of at the beginning, setting the situation that a robot has the same probability distribution in all positions; enabling the robot to obtain peripheral environmental information of the robot in a real-time manner and construct a partial map through carrying a laser radar; through using a method of image matching, finding possible position of the partial map in the global map and probability at the possible position, and updating positioning confidence coefficient of the robot in the global map; calculating the difference value between an updated maximum positioning confidence coefficient and a second maximum positioning confidence coefficient; and judging whether the difference value is greater than a set threshold or not, if yes, completing the positioning, or else, according to data of a speedometer carried by the robot, updating the positioning confidence coefficient of the robot. According to the robot global repositioning method disclosed by the invention, only needing a sensor carried by the robot, the robot can complete global repositioning, and has high autonomy and high adaptability; and the positioning speed is high, and the robustness is high.

The invention discloses a multi-station plug-in mounting production line and an automatic mouse PCB (printed circuit board) production line. The multi-station plug-in mounting production line comprises a PCB loading device, a plurality of sets of sequentially butted plug-in mounting equipment, a reflow welding machine arranged at the outer end of the last plug-in mounting equipment, an unloading device arranged at the material discharging end of the reflow welding machine, an upper cover conveying device which is arranged from the material discharging end of the reflow welding machine to the outer end of the last plug-in mounting equipment, and a bottom cover conveying device arranged from the material discharging end of the reflow welding machine to the PCB loading device, wherein the first plug-in mounting equipment is butted with the PCB loading device. According to the multi-station plug-in mounting production line, a bottom cover is used as a lower part of a plug-in mounting jig; after a PCB is subjected to plug-in mounting at multiple stations, an upper cover is used as an upper part of the jig; the upper cover is fixedly connected with the bottom cover, so that an electronic element can be reliably fixed on the PCB, and the electronic element which is plugged into the PCB but is not completely fixed can be reliably welded in a process of the reflow welding machine; therefore the reliability and the stability of a PCB product can be improved.

The one-dimensional displacement work table in nanometer level positioning precision includes a work table part, a position detecting part, and a driving part. The work table part includes coarse regulating work table, which is set between rolling tracks in vertical direction and has coarse displacement regulating mechanism; and fine regulating work table, which has pedestal set in the inner cavity of the coarse regulating work table via one connecting foldable flexible hinge support mechanism and has piezoelectric micro displacement unit as fine displacement regulating mechanism set between its pedestal and the coarse regulating work table. The driving part for the coarse regulating work table and the fine regulating work table is connected to the signal processing and controlling circuit. diffraction grating fixed on the work table is used as the measurement sensor for the displacement of the work table to form the displacement relevant detection signal.

The invention discloses a high-precision indoor WiFi positioning system based on the phase change characteristics of OFDM channel state information. The main equipment of the system is composed of a wireless AP running a CSI signal feature acquisition program and a positioning server running a positioning algorithm. The wireless AP module is in On the basis of ordinary wireless AP, it can extract the CSI characteristic information between the remote wireless device and the AP wireless channel in the wireless communication process, and send the relevant information to the positioning server through high-speed Ethernet; the positioning server runs the positioning algorithm, and the The CSI feature information is transformed into the location information of the mobile device to be located. In the present invention, by extracting the channel state information in the communication process, based on the phase change characteristics of the channel state information between each OFDM sub-carrier, the high-precision indoor real-time positioning problem under indoor conditions is satisfied, which meets the actual use Require.

Embodiments of the invention disclose a positioning method, an apparatus, equipment and a storage medium. The method comprises the following steps of monitoring a positioning request triggered by a user, and if the positioning request is monitored, acquiring weather information of an area where a mobile terminal is located currently; through a temperature sensor, detecting a current actual temperature value of an environment where the mobile terminal is located; according to the weather information and the current actual temperature value, acquiring current environment information of the mobile terminal and determining a positioning mode matching with the current environment information; and using the positioning mode to position the mobile terminal. In the embodiments of the invention, a condition that GPS signals are continuously searched in an indoor environment so as to achieve continuous positioning so that an electricity consumption problem is generated can be avoided; an electric quantity of the mobile terminal is saved; when the matched positioning mode is not used, time wastes are reduced; and a positioning speed is accelerated.

The embodiment of the invention relates to the technical field of wireless communication, in particular to a method and equipment for transmitting positioning information. The method and the equipment are used for solving the problem that the positioning acquisition behavior of an evolved node B (eNB) serving as a positioning request initiator is redundant in a flow to cause the waste of signaling overhead in the prior art. The method in the embodiment of the invention comprises the following steps that: the eNB is determined as the positioning request initiator; and the eNB transmits a positioning request comprising uplink-time different of arrival (UTDOA) auxiliary data to a positioning request receiver after successfully allocating sounding reference signal (SRS) resources to user equipment. For a UTDOA positioning process triggered by the eNB which serves as the initiator, the eNB directly carries the UTDOA auxiliary data at the same time of transmission of the positioning request, so that overmuch signaling overhead is avoided, and the aim of optimizing a signaling flow is fulfilled.

Provided is an indoor positioning information push method based on GNSS satellite signals. The method includes the following steps: (1) arranging a camera device indoors, taking the camera device as acoordinate system original point to divide a to-be-measured room into planar grid coordinate systems, and utilizing a moving object detection technology to obtain two-dimensional coordinate values ofa user in the room; (2) obtaining an actual geological coordinate, time service information and PPS synchronous second pulse information of an antenna through the indoor GNSS satellite signal reception antenna, and combining the two-dimensional coordinate values of the user and the geometrical parameters of the room to perform calculation and obtaining actual geological coordinate values of the user; (3) conducting regeneration of GNSS satellite signals; and (4) through the intelligent antenna technology, forming a wave beam pointing the user and broadcasting the GNSS satellite signals in a corresponding position so that a positioning apparatus of the user resolves the broadcasting position. The GNSS satellite signals are taken as a medium to perform indoor positioning. The method has theadvantages that the precision is high, the speed is fast and a reception apparatus does not need to change or add other pieces of hardware.

The invention discloses a method and system for positioning a wireless sensor network, and the method and system can be used for solving the problems of low positioning speed and low positioning precision of the existing method and system for positioning the wireless sensor network. The distance between each beacon node and a node to be detected in the system is 1-10m. The method comprises the following steps: three beacon nodes respectively utilize self IDs, data length, target addresses, data, zone bits and the like to form data frames, and the data frames are periodically broadcast in a CSMA (Carrier Sense Multiple Access) mode; the node to be detected receives broadcast signals from the three beacon nodes as well as stores and analyzes the structure of each part of each data frame; an RSSI (Received Signal Strength Indicator) value is read, the distance between a wireless sensor network node to be detected and each three beacon node is obtained through calculation by an RSSI-distance linear transformation model; and then, the coordinate of the node to be detected is obtained by virtue of trilateration so as to position the wireless sensor network node. The method and the system are suitable for positioning the wireless sensor network node.

The invention relates to a sensing device and a positioning method thereof, in particular to a magnetic array position sensing device and a positioning method thereof. The magnetic array position sensing device comprises a permanent magnetic body device 1 which is provided with a magnetic array 101 and a magnetic sensitive element device 2 which is matched with the permanent magnetic body device 1 and is provided with a magnetic sensitive element array 201, wherein the magnetic sensitive element device 2 is fixed on a main circuit board 7 which contains a distance test device 3, and the magnetic sensitive element array 201 is fixed on the magnetic sensitive element device 2 through a fixing device 4. The magnetic array position sensing device has the following advantages that: 1. an independent positioning plate is adopted, and the magnetic sensitive element is welded on the positioning plate, so the position error of the magnetic sensitive element is reduced; 2. the relationship between the width of the magnetic body array unit and the gap of the magnetic sensitive element is re-designed, so under the condition that the precision of the system is maintained, the distance between the magnetic sensitive elements is enlarged, the consumption of the magnetic sensitive element is reduced, and the cost of the device is reduced.

The invention discloses a rapid fingerprint positioning method based on a large-scale MIMO single-station system. The method comprises the following steps: designing an ADCPM fingerprint matrix for subsequent fingerprint matching; preliminarily storing the fingerprint matrix and sparsely storing the fingerprint matrix through a ternary table; performing first-order coarse classification on the fingerprint matrix based on a center angle of arrival (CAOA), and mapping the coarsely classified fingerprint matrix through a local sensitivity hash function again to obtain a second-order fine classification result; and finally, carrying out online stage fingerprint positioning on the finely classified fingerprint matrix through a weighted KNN method. By using the method provided by the invention,compared with the traditional fingerprint positioning method, the online positioning speed under a large-scale fingerprint database can be improved, and higher positioning precision can be maintained.

The invention relates to the technical field of processing of images, in particular to a real-time circular printing image defect detecting method. The method comprises the following steps: a standard template graph and an on-line real-time graph of a target to be detected, obtaining a circle point coordinate through an exponential changing and searching step-length method, calculating a circle center and semi-diameter of a circular area of each of the standard template graph and the on-line real-time graph according to a method for positioning a circle through three points, dividing each circular area into a large quantity of annular areas, counting characteristics of grey level histograms of the annular areas, and comparing the characteristics of the grey level histograms of the annular areas of the standard template graph and the on-line real-time graph to complete image defect detection. Through the adoption of the real-time circular printing image defect detecting method, the circular printing image defection speed is improved from two aspects; a practicable method is provided for on-line defect detection based on machine vision.

The invention relates to a detecting device and a detecting method for a rotation center of an angle-of-attack mechanism of a wind tunnel test section. The detecting device comprises a supporting positioning structure with a horizontal extending structure. The supporting positioning structure is provided with a guiding structure which can make the horizontal extending structure move vertically. The extending end of the horizontal extending structure is provided with a detecting positioning structure, and a measuring device which is arranged on the bent cutter supporting plate of the angle-of-attack mechanism of the wind tunnel test section correspondingly with the detecting positioning structure and can perform positive and negative angle-of-attack arc movement of the bent cutter supporting plate. The detecting device and detecting method for the rotation center of the angle-of-attack mechanism of the wind tunnel test section realize more visual and quick measurement process and furthermore establish a standard with small error and high stability. Furthermore the detecting device and the detecting method have advantages of remarkably shortening an application period, reducing number of operators, reducing labor intensity, and greatly reducing cost at each aspect.

The invention provides a mobile robot positioning system based on a hybrid navigation band, and is suitable for the robot positioning technical field. The mobile robot positioning system includes a DataMatrix code band and a color band arranged on the ground of a walking path of a mobile robot. The color band is set in a path of a high-speed motion area. The DataMatrix code band is set in a path of a precise positioning area. A circumscribed rectangle of a DataMatrix code is composed of two adjacent solid line edges and two adjacent imaginary line edges. A DataMatrix code image carries a pathdistance with calibration points; the mobile robot is provided with a camera and a positioning sensor, and the photographic plane of the camera is parallel to the ground. The positioning sensor identifies whether the DataMatrix code exists in an image based on the image captured by the camera. If the DataMatrix code exists in the image, the mobile robot is positioned based on the DataMatrix code in the image. If no DataMatrix code exists in the image, the mobile robot is positioned based on the color band. Accurate coordinate information of the robot can be obtained in an area where precise positioning is required, and stable and reliable position information of the robot can be obtained in an area where high-speed motion is required, the positioning speed is fast, and high-speed motion requirements can be met.

The embodiment of the invention discloses an antenna positioning method and apparatus, and a wireless access device, for solving the problem that the existing antenna positioning is difficult to meet accurate positioning and efficient positioning. The method disclosed by the embodiment of the invention comprises the following steps: controlling a target antenna to traverse adjustable angles of the target antenna at a preset first stepping value according to a preset first path; determining the antenna angle corresponding to the signal intensity satisfying preset conditions as a first antenna angle in the traversal process, and interrupting the traversal of the target antenna; obtaining area signal intensity of first adjustable angle areas, and determining the first adjustable angle area having the maximum area signal intensity as a better area; controlling the target antenna to traverse the better area at a preset second stepping value according to a preset second path, wherein the second stepping value is smaller than the first stepping value; determining the antenna angle corresponding to the maximum signal intensity as a second antenna angle in the traversal process of the better area; and finally positioning the target antenna to the second antenna angle.

A plate drilling equipment of the invention comprises a machine tool body, an operating floor arranged on the machine tool body, a rack connected with the machine tool body and an operating head section connected with the rack, wherein the rack is an L-shape device and comprises a beam and a pillar. One side of the machine tool body is provided with at least two tracks parallel with the surface of the operating floor. The pillar is connected in sliding with the track. The machine tool body is provided with at least one locking track parallel with the track. The pillar is connected in sliding with the locking track. A locking device is arranged between the pillar and the locking track. The plate drilling equipment of the invention results in an accurate and fast positioning, reduces the required clamping process, improves the production efficiency and adapts to the complex requirement of drilling a plurality of holes in the plate at the same time.

This invention provides one network optimization network subject three tree appearing and positioning method, which comprises steps of system initiating, getting network logic data, displaying element logic tree relationship and inputting network by user interface for above operation interface wherein, the above three trees refer to one tree structure each point including select, semi-sleet and non select status.

The invention discloses an accurate positioning method for LED chips, comprising the following steps: S1, coarsely arranging LED chips after cutting on a sticky UV film through a sorter according to a test result figure after test to form an array; S2, covering the UV film with a prefabricated net-form positioning fixture to make the arranged LED chips go into the quadrilateral cells of the net-form positioning fixture; S3, using a UV lamp to irradiate the UV film to make the UV film lose viscosity so as to release the LED chips going into the cells of the net-form positioning fixture; S4, moving the net-form positioning fixture as a whole a certain distance towards the X direction and the Y direction to make the LED chip in each cell close to the corner of the quadrangle; and S5, covering the surface of the net-form positioning fixture with a sticky film to make the LED chips accurately stuck and transferred onto the film for the subsequent process.

The invention discloses a Schmidt roof prism processing method and a positioning tool thereof, and belongs to the technical field of optical prisms. In the positioning tool, a first backrest positioning block with a first backrest positioning surface and a second backrest positioning block with a second backrest positioning surface are fixed on the upper surface of a substrate, the first backrestpositioning surface and the second backrest positioning surface are perpendicular to the upper surface of the substrate, and a prism side processing block is positioned above the substrate and provided with a prism side processing surface perpendicular to the upper surface of the substrate. The processing method includes the steps: firstly, processing a first side surface of a prism, and positioning and processing a second side surface of the prism through the positioning tool; secondly, positioning and initially processing two roof surfaces through the positioning tool; finally, taking one roof surface as a standard to grind the other reference surface, and enabling the accuracy of a roof angle to be within 1''. According to the method, process steps are optimized without changing an existing processing device, the method ensures that the processed roof angle is within 1'', the accuracy of surfaces is high, technical requirements are low, and production efficiency is high.

The invention relates to a spatial information service based on a geographical index, comprising a grid server, a mobile client and a grid agent server; the grid server is provided with a first spatial information local index mechanism; the mobile client is provided with a second information local index mechanism; the grid agent server is provided with a globally distributed index mechanism; the grid server registers on the grid agent server, and simultaneously sends the relevant information of a respective spatial resource to the grid agent server; the grid agent server stores the global index information of the spatial resource of each grid server; the mobile client sends the request of spatial information mobile grid service to the grid agent server; and the grid agent server judges which grid server of requested data to send the request to the owned grid server according to the requested place information. Compared with the prior art, the spatial information service based on the geographical index has the advantages of promoting the locating speed of spatial information resources, and the like.

The invention discloses a detachable reactive polyurethane hot melt adhesive used for bonding of mobile phone frames. The adhesive is characterized by comprising the following components, in percentages by weight: 10-30% of a polyether polyol, 30-50% of a polyester polyol, 15-35% of isocyanate, 15-30% of acrylic resin, 3-10% of tackifying resin, 1-5% of thermoplastic polyurethane (TPU), 0.1-0.5% of a stabilizing agent, 0.1-1% of a catalyst, and 1-5% of an adhesion promoter. The invention also discloses a preparation method of the adhesive. The reactive polyurethane hot melt adhesive provided by the invention has low viscosity, good fluidity, easy dispensing and no drawing; the adhesive has good stability, and the viscosity change does not exceed 50% at 120 DEG C for 24 h; the adhesive hasa fast positioning speed and short pressure holding time; the adhesive has high bonding strength and very good bonding effects on a plurality of plastics and metals; and the adhesive is detachable.

The invention relates to a satellite-based train vehicle-mounted speed measuring and positioning system and a method thereof. The system comprises a satellite positioning receiver, a wheel speed sensor and a vehicle-mounted host, and the satellite positioning receiver is responsible for receiving satellite signals in the air, performing differential correction and outputting speed and position information; the wheel speed sensor is installed on a walking shaft of a vehicle and is responsible for measuring the rotating angle of a wheel, obtaining the rotating angle speed of the wheel through periodic sampling and converting the diameter of the wheel to obtain the running speed of the vehicle; and the vehicle-mounted host is responsible for receiving and processing data of the satellite positioning receiver and the wheel speed sensor and finally outputting speed measuring and positioning results. Compared with like systems and methods in the prior art, the system and the method of the invention have the advantages of cost reduction, high positioning precision, high positioning speed and the like.

The invention relates to a positioning device, in particular to a quick positioning device for cloth cutting. The aim that the quick positioning device for cloth cutting is high in positioning speed is achieved. The quick positioning device for cloth cutting comprises a positioning plate, rotating motors, first bearing bases, first rolling cylinders, first rotating shafts, second bearing bases, fixing plates, pulling wires, winding wheels, first supporting rods, sliding sleeves, lifting rods, contact rolling wheels, connecting rods, positioning drills, sliding rails, sliding blocks, second supporting rods, a third bearing base, a second rotating shaft, a second rolling cylinder, a thumb air cylinder, a first fixed pulley, a second fixed pulley and a spring, and the fixing plates are symmetrically arranged at the left end and the right end of the front side on the positioning plate. By means of the quick positioning device for cloth cutting, the effects of being high in positioning speed, accurate in positioning and easy to operate is achieved.

The invention belongs to the field of indoor positioning and particularly relates an indoor positioning method and system and a server. The method comprises A, an offline training step of collecting training samples and establishing a fingerprint database based on the training samples; B, an online positioning step of receiving RSS data of to-be-positioned terminals, calling the fingerprint database, finishing real-time position operation according to received RSS data, and returning an operation result to the to-be-positioned terminals; and C, an running maintenance step of carrying out active and/or passive sensing on maintenance terminals in a positioning space, continuously collecting fingerprint data of the maintenance terminals, and updating the fingerprint database periodically or aperiodically based on the fingerprint data. The method, the system and the server have the advantage that the stability and accuracy of a positioning process are ensured by continuously updating the fingerprint database.

The invention discloses a method for visually positioning a tank mouth of a railway oil tank truck. The method includes the steps that the single-pixel edge of the tank mouth is extracted from an image obtained when a large loading arm just faces the tank mouth and is fit to an oval, and the coordinates and the gradient of the edge of the tank mouth are calculated through an oval formula to be fit to a shape template; image pyramid decomposition is carried out on the template and an image to be searched for; the gradient information in all pyramid layers of the image to be searched for is calculated; an interesting region matched with the tank mouth and a shape matching threshold value are set, and on the decomposed layer with the lowest image resolution ratio of the pyramid, the tank mouth is positioned with the normalized gradient mutual correlation as a shape similarity metric function. The method for visually positioning the tank mouth of the railway oil tank truck has the advantages of being high in reliability, low in implementation, high in automation degree and the like.

The invention discloses a protocol analysis method for a data packet. The protocol analysis method is used for carrying out protocol analysis on any transmitted data packet. The method comprises the following steps of acquiring a data packet to be analyzed; receiving a protocol document; generating a protocol decoding function according to the protocol document; and inputting the data packet to beanalyzed into the protocol decoding function in order to acquire a field name included in the data packet to be analyzed and a value of the field name. The invention further discloses a protocol analysis device for the data packet.