62results about How to "Avoid Positioning Mistakes" patented technology

The invention discloses an anti-winding locating device for a 360-degree rotary joint of a robot. Locating of the joint is achieved by an edge signal of a zero Hall switch, a Z-pulse signal of an incremental encoder and an edge signal of a limiting Hall switch on the basis of the zero Hall switch and the limiting Hall switch. Thus, on one hand, the precision and the automatic degree are improved when the robot carries out zero locating, and the problem that an electric lead is wound on a mechanical joint is solved; on the other hand, the problem that the electric lead is wound when the joint normally moves is solved under the situation that a work space is 360 degrees. The anti-winding locating device has the advantages of low cost, simple structure, ease in operation and high precision.

One embodiment of the present invention relates to a positioning device of a mobile communication terminal, a method for constructing wireless LAN information of the device, a positioning server of the mobile communication terminal, and a method for driving the server, wherein: mobility of an access point is determined by using the provided positioning information relative to a positioning request of the mobile communication terminal; and wireless LAN information which is prestored in a wireless LAN server is updated on the basis of a stationary access point, so that the updated information is used when a positioning service of the mobile communication terminal is provided. According to the embodiment of the present invention, the positioning device of the mobile communication terminal comprises: an access point which performs near field communication with the mobile communication terminal; a node information-based server which manages wireless environment information for a node that controls communication of said mobile communication terminal; a wireless LAN server which has a database for storing wireless LAN information on said access point; ; and a positioning server which calculates a distance between said access point and said node or a distance between said access point and said mobile communication terminal by using the positioning information, which is received in a request for the positioning to said mobile communication terminal, said wireless LAN information, and said wireless environment information, and determines that the said access point has a mobile type if said calculated distance is a certain distance or more such that the access point is removed from said database, and then provides the result of the positioning on the basis of a stationary access point stored in said database when a positioning service is provided.

General encoder and Hall component or increment type encoder capable of transmitting U, V, W signals are installed on rotor. U, V, W signals divide electrical angle of rotor position into six intervals in 60 degrees each. At strating up time of power on, magnetic vector intervals of rotor are determined through U, V, W signal states. The middle point of the interval is as position of magnetic vector of rotor. Controller outputs electrical current to three-phase winding of stator. Maximum phase error of current is only 30 degrees. When rotating rotor steps across interval, first change of U, V, W signal states occurs. Thus, accurate positioning for rotor is carried out, and normal operation begins. System checks position of rotor in every 60 degree in order to avoid positioning error in operation.

The invention provides a positioning method of an electronic display system, comprising the following steps of: arranging at least three cameras at different positions of the edge of a display screen; acquiring the information of shooting angles of the camera when opaque objects exist; according to the information of the shooting angles, obtaining the number of the shooting angles of all the cameras; according to the number of the cameras, determining the combining mode of the information of the shooting angles of the camera; obtaining a first coordinate of the opaque objects according to the combining mode of the information of the shooting angles; and carrying out positioning to the opaque objects according to the first coordinate. The positioning method of the electronic display system has low cost and simple implementation and can realize multipoint positioning.

Provided is a target tracking method based on nonparametric online clustering. The invention aims to track a specified target of interest in a given video online, predict the specific position and the bounding rectangular box of the target in a subsequent image frame, and extract the distillation characteristic of the target of interest based on a small deep network learned from a large deep network. The characteristic has strong appearance expression ability, discrimination ability and robustness. The invention further aims to perform nonparametric online clustering on the historical appearance of the target of interest, generate a target appearance template with historical information retained based on a weighted clustering center, and generate target spatial distribution using the target appearance template. Therefore, the accuracy of target tracking is increased, the risk of target drift is reduced, and the error rate is reduced.

The invention claims the protection of a pointer instrument reading recognition method of a substation inspection robot. The method includes the steps of taking a photo using preset parking of a robot at an instrument to be recognized, roughly positioning the position of the instrument, then performing edge detection for the region, next, performing circle detection using fast Hough transform to determine the position of a dial plate, extracting the dial plate region for multi-angle Gabor filtering to calculate the direction of a pointer, and calculating the reading of the instrument on that basis. The method has the characteristics of low pre-processing requirement, fewer steps, strong robustness for illumination, shadows and other interference, and high accuracy of reading instrument data.

The embodiment of the invention provides a vision-based positioning method, device and equipment. The method comprises the following steps: acquiring a plurality of images of at least two visual angles; extracting features of the plurality of images; according to the extracted features, determining matching point pairs of the plurality of images and a map database; according to the relative posesof the at least two visual angles and the matching point pairs, determining the scale information, the rotation information and the translation information between a camera coordinate system and a mapcoordinate system; and determining the position of a to-be-positioned image according to the scale information, the rotation information and the translation information. According to the method disclosed by the embodiment of the invention, the plurality of images of the at least two visual angles are obtained, a wider field of view is obtained, more matching point pairs can be obtained, and the positioning accuracy and the positioning success rate are improved.

The invention discloses a finger movement detection and positioning method based on space-time filtering and joint space Kmeans. The finger movement detection and positioning method based on space-time filtering and joint space Kmeans includes the steps: attaching 10 different colors (except for black and white) of labels to the fingers of a player, shooting the video that the fingers of the player play a keyboard musical instrument; for the input video frames, using a space-time filtering method to detect the finger movement target, and feeding back the spatial domain filtering result to guide updating of the dynamic background; and using the joint space Kmeans to perform finger movement target positioning, and by means of combination of the statistical characteristics of R, G and B histograms to decide the cluster number and the initialization clustering center adaptively, so as to realize the fingering identification and recording function with low calculating complexity, high convergence speed, high positioning accuracy, and high real time performance.

The embodiment of the invention provides a location data processing method and device, equipment and a memory medium. The method specifically comprises the steps of obtaining two pieces of location information corresponding to two positioning modes from location data uploaded by a terminal; and determining the location of the terminal according to the distance between the two pieces of location information and network type information obtained when the terminal uploads the location data. According to the embodiment of the invention, under the condition that the location data uploaded to a positioning platform comprises unreal location data, the positioning error problem can be effectively avoided, further the accuracy of LBS (Location Based Service) can be improved, and the user experience can be improved.

The invention relates to a lifting tool fulcrum rotary switching positioning mechanism. The lifting tool fulcrum rotary switching positioning mechanism is characterized in that a fulcrum rotating assembly is connected with a fixed mounting seat, a sliding bearing is arranged in an inner cavity of the fixed mounting seat, a wearproof cushion is arranged on the upper end face and connected with thefulcrum rotating assembly, the fulcrum rotating assembly penetrates into the fixed mounting seat through a rotary center shaft, the inner side of the rotary center shaft is of a cavity structure, a long hole is formed in the wall of the rotary center shaft, a fulcrum rotary positioning assembly is fixed to a rotary shaft, the rotary shaft is connected to an inner cavity of the rotary center shaft,a positioning key slides on the long hole of the rotary center shaft, an end face and slope guider is arranged on the lower portion of the inner cavity of the fixed mounting seat, a connecting plateis arranged on one side of the fixed mounting seat and connected with a lifting tool arm, a long hole is formed in the connecting plate, and a rotary bracket is arranged on the other side of the fixedmounting seat. The lifting tool fulcrum rotary switching positioning mechanism is closed and compact in structure, and clamps are accurately positioned; and the safety of the positioning assembly isimproved, the working efficiency is improved, and the production takt is quickened.

The invention discloses a device for controlling cursor movement. The device comprises a sensing module, an acquisition module and a processing module, wherein the sensing module is used for sensing a touch operation on a mobile terminal touch screen; the acquisition module is used for acquiring a movement parameter corresponding to the touch operation when the touch operation is a finger rotation operation of a user; and the processing module is used for controlling a cursor on the mobile terminal touch screen to move according to the movement parameter. The invention further discloses a method for controlling cursor movement. The cursor positioning accuracy of a mobile terminal is effectively improved.

The invention discloses a log file processing method, device and system. The log file processing method comprises the steps of receiving calling information of service access, wherein the calling information comprises a service number of a service; Storing the calling information into a log file of a log file database; Detecting the stored log file, and determining whether the access of each service is abnormal or not; And when it is determined that the access of the service is abnormal, sending alarm information. According to the method, all log information in the system can be stored in a unified mode, abnormity is automatically found through detection of the log information, and alarm information is actively sent.

The invention relates to the field of robots, in particular to a gluing method and device of a gluing robot, a storage medium and the gluing robot. The method comprises the steps that a laser emitteris controlled to project laser rays to a gluing area, and an image including the laser rays and the gluing area is acquired in real time, wherein the gluing area is located on the intersecting line oftwo adjacent building components; the first coordinates of the intersection point of the laser rays and the gluing area in a camera coordinate system are calculated according to the image; the firstcoordinates of the intersection point in the camera coordinate system are converted into second coordinates in a mechanical arm coordinate system; and a gluing track is generated according to the second coordinates, and a glue nozzle of a movable gluing head of the mechanical arm is controlled to carrying gluing work along the gluing track, wherein the laser emitter and a camera are located in front of the gluing head. According to the gluing method and device of the gluing robot, the storage medium and the gluing robot, the positioning precision of the gluing robot on the to-be-glued positions on the building components can be improved, and the quality and efficiency of the gluing work of the gluing robot are improved.

A manufacturing method for integrating a passive component within a substrate is disclosed. The manufacturing method comprises the steps of: providing a circuit layer, wherein a positioning blind hole is formed in the circuit layer; forming a conductive material in the positioning blind hole; positioning the passive component in the positioning blind hole of the circuit layer and electrically connecting the passive component to the circuit layer via the conductive material in the positioning blind hole; and laminating a core layer, the passive component, and the circuit layer as the substrate.

A coordinate positioning system with in-the-air positioning function includes an illuminator and an image sensor. The illuminator produces a directional light. The image sensor receives the directional light produced by the illuminator and produces an image corresponding to the directional light to accordingly analyze the image and obtain a rotating angle corresponding to the directional light.

The invention relates to a method for eliminating the influence of a glasses frame during human eye detection. At present, the problem that the glasses frame interferes human eye positioning exists during human eye detection. According to the method and on the basis that an AdaBoost detecting algorithm is utilized to obtain human face eye areas, firstly, vertical and horizontal gray projection is applied to the eye areas and strip-shaped areas of the left eye and the right eye are obtained according to the inherent features of the glasses frame; secondly, initial binaryzation is conducted on the strip-shaped areas of the left eye and the right eye respectively, the quasi-circular features of irises and pupils of the human eyes are utilized to adjust binaryzation threshold values through application of self-adaptive binaryzation circle fitting, and binaryzation is conducted on the strip-shaped areas of the left eye and the right eye again; iteration processing is performed, wherein circle centers finally obtained through binaryzation image circle fitting conducted on the strip-shaped areas of the left eye and the right eye are position coordinates of the left eye and the right eye of the human face. The method fully excavates the structural information of eyes and utilizes the inherent features of the glasses frame, and human eye positioning errors caused by the glasses frame are effectively avoided.

The invention discloses a corrugated steel web positioning method and an adopted bidirectional adjusting and positioning device. The corrugated steel web positioning method comprises the following steps of S1, mounting the bidirectional adjusting and positioning device of a corrugated steel web at a fixed end die; S2, obliquely hoisting the corrugated steel web into the die according to a designedslope; S3, adjusting and positioning the corrugated steel web at the fixed end die side in height direction and transverse direction of a bridge; and S4, adjusting and positioning the corrugated steel web 1 at a matched beam side opposite to the fixed end die side in height direction and transverse direction of the bridge. The corrugated steel web positioning method is convenient and quick to position, can reduce influence of external factors such as wind power and is more accurate and reliable to position.

The invention discloses a sensor-based positioning method, comprising a wireless signal broadcasting device and a mobile electronic device. The wireless signal broadcasting device broadcasts a wireless signal within a wireless coverage range of the wireless signal broadcasting device. The mobile electronic device is provided with a motion sensor and a wireless communication module, wherein the user carries the mobile electronic device, the motion sensor of the mobile electronic device collects the related motion data, and the wireless module in the mobile electronic device searches and scans the wireless signal characteristics in the coverage area and matches the set value. Compared with the prior art, the sensor-based positioning method provided by the invention has the advantages of strong practicability, long service life, small environmental impact, easy popularization, favorable customer experience and high stability. A motion sensor is used to control the start or stop of the search unit of the wireless module on the mobile device, so that the search unit of the wireless module is avoided to be in a state of on-scan for a long time, and the power consumption is large.

The invention relates to intelligent cleaning equipment, a repositioning method and device, a computer readable storage medium and electronic equipment. The intelligent cleaning equipment comprises avisual receiving device used for obtaining image information in the environment where the intelligent cleaning equipment is located, a distance sensing device which is used for acquiring the spacing distance between the intelligent cleaning equipment and an obstacle in the environment so as to construct a scene map about the environment where the intelligent cleaning equipment is located, and a control device which is used for re-determining the position information of the intelligent cleaning equipment in the scene map when the image information represents that the position of the intelligentcleaning equipment is suddenly changed Device. According to the invention, the intelligent cleaning equipment can perform cleaning according to the obtained image information. According to the invention, the equipment can determine whether the position of the intelligent cleaning equipment suddenly changes or not, and the position information of the intelligent cleaning equipment in the scene mapis re-determined when the position suddenly changes, so the condition of positioning errors of the intelligent cleaning equipment after position suddenly changes can be avoided, and the positioning accuracy of the intelligent cleaning equipment is enhanced.

The present invention discloses a positioning base plate for PCB pore forming and a positioning method thereof. Two mutually vertical slideways are processed in a positioning base plate, adjustable slide block sets capable of moving are arranged in the slideways, and a micrometer and a transmission screw are employed to perform accurate positioning of the adjustable slide block sets to achieve positioning of the PCB to be processed by employing stop bolts fixed at the upper surfaces of adjustable slide blocks. After the pore-forming processing operation of an No.1 PCB is completed, the positions of the adjustable slide blocks can be adjusted again to conveniently perform pore-forming processing of other types of PCBs, and therefore, the positioning base plate for PCB pore forming and the positioning method thereof have substantial characteristics such as one board with multiple functions, one board with common usage, avoiding of positioning errors and reduction of the manufacturing cost.

The invention belongs to the technical field of metal smelting, and particularly relates to a position calibration device of a transfer trolley for high-temperature melt. A calibration element group is arranged in a calibration section of a transfer path, the calibration element group comprises a positioning block and a communication tag which are adjacently arranged, and a proximity switch and a reader-writer are correspondingly arranged on the transfer trolley; if within the limited time range, the positioning system and the calibration system respectively collect signals to position the transfer trolley, whether positioning of the positioning system and the calibration system is matched or not is compared, and if yes, positioning of the transfer trolley is updated; and if not, the positioning system is corrected by taking the calibration system as the standard, and the positioning of the transfer trolley is updated. A positioning component different from an original signal acquisition mode is additionally arranged on a road section where the transfer trolley needs to be stopped accurately to calibrate an original positioning system, so that positioning errors of the transfer trolley caused by interference of foreign matters to the positioning system can be avoided, and use of the original positioning system is not affected; the function of accurately stopping the transfer trolley in place can be achieved at low cost on the basis of an existing positioning system.

A target tracking method based on non -parameter online clustering class, the technical problem it solves is: given a video to track online targets for a specified interested target, thereby predict the specific location of the subsequent image frame goals and external rectanglesThe box, based on the small depth network learned from the deep network, extract distillation characteristics for interested targets.This feature has strong appearance expression, judgment ability and robustness.The problem of further solution of the present invention is that: non -parameter online clustering of the historical appearance of interested goals, and a target appearance template that retains historical information based on the weighted cluster centers, and use this target appearance template to generate target space distribution, thereby improvingThe target tracking accuracy, reduce the risk of target drift, and then reduce the error rate.

The present application relates to the field of robots, and in particular to a gluing robot, a device, a storage medium, and a gluing robot. The method includes: controlling a laser emitter to project a laser line to the gluing area, and obtaining real-time information including the laser line and the gluing robot. The image of the gluing area, the gluing area is located on the intersection line of two adjacent building components; according to the image, calculate the first intersection of the laser line and the gluing area in the camera coordinate system Coordinates; convert the first coordinate of the intersection point in the camera coordinate system to the second coordinate in the mechanical arm coordinate system; generate a glue track according to the second coordinate, and control the mechanical arm to move the glue head The glue nozzle carries out the glue making operation along the glue making track, and the laser transmitter and the camera are located in front of the glue making glue head. The application can improve the positioning accuracy of the gluing robot on the position to be glued on the building accessories, and improve the quality and efficiency of the gluing robot's gluing operation.

The invention provides a special equipment employee positioning system and method for image processing. The system comprises an input module, a communication module, an RFID reader, an RFID tag, a positioning module and a confirmation module. The input module is used for inputting employee numbers of employees of the special equipment; the communication module is used for forwarding the employee numbers to the RFID reader; the RFID reader is used for generating a feedback message; the communication module is also used for transmitting the feedback message to the positioning module; the positioning module is used for determining position coordinates of the employee of the special equipment corresponding to the employee number according to the feedback message; and the confirmation module is used for confirming whether the equipment employee is in the position coordinate or not to obtain a confirmation result. The method corresponds to the system. According to the invention, the problem of wrong positioning when the RFID tag is separated from the employee of the special equipment can be avoided. The positioning accuracy of special equipment employees can be improved.

The invention discloses a grid map positioning method based on point cloud registration. The candidate pose of is used as the initial pose; the objective function T is constructed for the projection points of the laser frames P1 and P2 in the grid map * , iteratively outputs the optimal pose; the optimal pose is sent to the odometer, and the odometer completes the prediction of all particle poses; according to the observation data of the particle position, the particle weight and the total weight of the particle are calculated by using the likelihood domain; according to the particle The weight screens the particles, copies the high-weight particles, discards the low-weight particles, adds random particles, updates the particle distribution, and compares and updates the maximum weight of the particle cluster; detects whether the maximum weight of the particle cluster is greater than the set weight threshold, if detected If the result is yes, then the best pose at this time is obtained. To a certain extent, it overcomes the slippage problem of using odometer.

A total pitch deviation measurement device that determines a total pitch deviation of an annular product having at least a magnetic ring. The device providing a frame; a pallet conveyor fixed to the frame and designed to support the rotor positioning bearing unit; a spindle unit mounted in translation compared to the frame along a vertical axis, the spindle unit including a spindle shaft, a motor driving the spindle shaft, and an encoder connected to the spindle shaft; the spindle shaft having a free lower end having a tapered shape that fits into a bore of the annular product; a sensor fixed to the frame that measures a magnetic field signal at a position of the magnetic ring and transmits the signal measured to an control unit that determines the total pitch deviation of the annular product. Also, a method for carrying out the function of the intended device