173results about How to "Avoid Inaccurate Positioning" patented technology

The invention discloses a positioning and navigation system of an indoor robot, comprising an optical label transmitter, a wireless module, a motion control module, a motion mechanism, an optical label detector, a positioning navigation module and a wireless module, wherein the optical label transmitter is used for forming an optical label on the fixed surface, and the position of the optical label in the fixed surface corresponds to the position of the robot in the motion area in a one-to-one manner; the wireless module is used for receiving navigation signals; the motion control module is used for generating corresponding drive control signals according to the received navigation signals; the motion mechanism is used for operating and driving the robot to move according to the drive control signals; the optical label detector is used for detecting the optical label and determining a coordinate of the optical label; the positioning navigation module is used for positioning the position of the robot in the motion area according to the coordinate of the optical label, and generating navigation signals according to a target position and the position planning and the corrected moving path of the robot; and the wireless module is used for sending the navigation signals. The invention also discloses a method applying the system. The method and the system are accurate in positioning, flexible in route planning and lower in cost.

The invention discloses an automatic detection system and method of a high resolution printed circuit board. The detection system comprises a ray source, an object stage, a visible light collection camera, a ray detecting camera, a ray detecting image intensifier, a collection card, an image processing module and a control and analysis display module, wherein the object stage and the ray source are respectively connected with the control and analysis display module through a connecting line, the visible light collection camera and the ray detecting camera are respectively connected with the image processing module through the collection card, and the image processing module is connected with the control and analysis display module through a connecting circuit. The invention combines functions of visible light image navigation, X-ray detection, automatic analysis test marking and the like, is a detection for making quantification aiming to the quality of welding spots and tracing lines and realizes defect automatic detection of invisible welding spots and internal tracing lines.

The invention discloses a method for positioning a key feature point, which comprises the following steps: detecting a face in a target image and determining the face area in the target image as an image to be aligned; extracting the edge information in the image to be aligned to obtain an edge graph of the image to be aligned; detecting all candidate feature points from the edge graph according to a pre-set feature point selecting standard; and selecting a plurality of candidate feature points with the highest match degree with a set reference feature point from the candidate feature points to serve as the finally obtained key feature points. The invention further discloses a device for positioning the key feature point, which comprises an image to be aligned determining module, an edge graph acquiring module, a candidate point determining module and a key feature point determining module. The method and device of the embodiment of the invention can accurately position the key feature point in the face area, and the algorithm of the scheme has the advantages of simplicity, small calculation amount and fast implementation.

The present disclosure relates to a domain name resolution method, a device, a computer readable storage medium and an electronic device. The domain name resolution method provided by the disclosed embodiment is applied to an authoritative domain name server. The method comprises the following steps: receiving a domain name resolution request sent by a target client, wherein the domain name resolution request comprises geographic position information of the target client and a target domain name to be resolved; analyzing the domain name resolution request to obtain the geographic position information of the target client and the target domain name; acquiring geographic location information of a plurality of application servers according to the target domain name; determining a target application server closest to the target client according to the geographic location information of the target client and the geographic location information of the plurality of application servers; returning an IP address of the target application server to the target client. The domain name resolution method provided by the disclosed embodiment can improve the positioning accuracy of the target client.

Embodiments of the invention disclose a terminal positioning method and network equipment. The terminal positioning method comprises the following steps that the network equipment obtains telecommunication signal sampling information of a first terminal at the current moment, wherein the first terminal is any terminal in a target area, and the target area is a predetermined geographic area; and the network equipment predicts to obtain location information of the first terminal at the current moment according to the telecommunication signal sampling information of the first terminal at the current moment and a prediction model of the target area. In the embodiments of the invention, the prediction model is obtained by training of mass data in the target area, the fault-tolerant capability and the error correcting capability are stronger, and the relation between the telecommunication signal sampling information and the location information of the terminal can be accurately reflected, so that the positioning can be carried out according to the prediction model and the telecommunication signal sampling information of the terminal, the accuracy of terminal positioning is effectively improved, the positioning error is reduced, and the practical value is greater.

The invention relates to a servo drive system and a servo drive method for a numerically controlled tool rest. The system comprises a numerically controlled upper computer, a servo driver, a tool rest popup and withdrawal mechanism, a servo motor and a tool rest device. The numerically controlled upper computer sends out tool changing orders including a target position of an appointed tool rest. The servo driver receives the tool changing orders, calculates the rotation direction and distance of the tool rest according to the current position and the target position of the tool rest, controls the tool rest popup and withdrawal mechanism to pop up the tool rest and generate motor control signals to the servo motor so as to control the tool rest to rotate to the target position, and controls the tool rest popup and withdrawal mechanism to withdraw the tool rest. The servo driver of the servo drive system directly receives the tool changing orders to generate internal position orders instead of receiving the pulse-form orders generated by the numerically controlled upper computer, so that inaccuracy in positioning caused by loss of pulse orders can be avoided. Further, programming quantity of the numerically controlled upper computer is reduced, and a tool rest controller is omitted.

The invention relates to compound plastic forming equipment, a die transposition mechanism thereof and a positioning method for the die transposition mechanism. The compound plastic forming equipment comprises the die transposition mechanism; the die transposition mechanism comprises a fixed part and a movable part which is in director motion relative to the fixed part; a positioning device used for enabling the fixed part and the movable part to be positioned along the direction of the director motion is arranged between the fixed part and the movable part, and a locking device used for enabling the fixed part and the movable part to be in force fit along the jacking direction of a die is also arranged between the fixed part and the movable part; the movable part can be positioned on the fixed part along the direction of the director motion through the positioning device, so the positioning accuracy in the direction of the director motion is improved; the movable part and the fixed part can be in force fit along the jacking direction of the die through the locking device, so the die can be prevented from inclining during die assembly, and while the product accuracy is improved, the phenomenon that positioning is inaccurate due to the fact that the die inclines during the die assembly under the condition that the die is only positioned by the positioning device can be avoided, and the manufacturing accuracy and the product quality can be helped to increase.

The present invention provides a location method and system, and a handheld intelligent wearing device. The method comprises the steps of: obtaining GPS location data and motion state data of a handheld location device, and obtaining environment image data and a navigation map, wherein the GPS location data, the motion state data and the environment image data comprise time stamps; matching the environment image data corresponding to the current moment with the navigation map to obtain a first position of a user at the current moment; and according to the first position, performing fusion operation of the GPS location data and the motion state data to determine the orientation location information corresponding to the current moment. The location method and system, and the handheld intelligent wearing device can improve the location accuracy through combination operation of the environment image data.

The invention is applicable to the technical field of computer application, and provides a laser radar re-positioning method and a robot. The laser radar re-positioning method comprises the steps of comparing real-time image frames shot in real time with key frames in a preset key frame library, determining target key frames matched with the real-time image frames, and then determining real-time position information corresponding to the target key frames according to the corresponding relationship between position information preset in the key frame library and the key frames. By means of thelaser radar re-positioning method and the robot, the situation that positioning is inaccurate since reference substances are lacked when the position is determined through synchronous positioning andmapping, and the positioning accuracy and reliability of the robot are improved.

The invention discloses an indoor positioning navigation trolley system based on WiFi, and a positioning method thereof. The indoor positioning navigation trolley system comprises a movable trolley, a human-computer interaction interface, a speed detection module, a direction detection module, a WiFi detection module, a positioning data processing module, a map data construction module and a data storage module. The positioning method comprises that when a pedestrian pushes the movable trolley to walk in a room, the speed detection module and the direction detection module acquire the real-time movement information of the movable trolley; and the relative position of the movable trolley is continuously acquired in an iterated manner according to the movement information while online position prediction is performed by using a particle filter technology, and finally the real-time position of the movable trolley is calculated. According to the present invention, with the indoor positioning navigation trolley system and the positioning method, the indoor dynamic positioning navigation precision can be effectively improved, and the system and the method are suitable for the positioning service for the large-area and complex-environment indoor mobile device.

A switching mechanism for optical component includes: an optical component; a holder member holding the optical component; a drive mechanism having a drive motor that drives the optical component held by the holder member to rotate on a plane orthogonal to an optical axis from an optical axis position at which the optical component is on the optical axis to an evacuation position at which the optical component is off the optical axis; and a restriction member restricting a rotation of the holder member, by which at least a rotation of the optical component held by the holder member is restricted at the optical axis position. The drive mechanism includes the drive motor, a worm attached to a rotation shaft of the drive motor, and a worm wheel meshed with the worm and provided to the holder member.

The invention discloses a lifting fin plate stabilizing system. The system comprises a vertical well and fin plates located in the vertical well; hydraulic locking pins are arranged in the middles ofthe fin plates; grooves are formed in the tops of piston push rods of the hydraulic locking pins, and infrared emitting devices provided with power sources are embedded in the grooves; locking pin bases are arranged on the wall of the vertical well, limiting grooves are formed in the front ends of the locking pin bases, and the piston push rods can stretch into the limiting grooves for jacking; signal line through holes communicated with the outside of the locking pin bases are formed in the bottoms of the limiting grooves; infrared receiving devices are arranged in the through holes, the hydraulic locking pins are connected with a petroleum supply station, the petroleum supply station, the infrared emitting devices and the infrared receiving devices are connected with a control device through a communication line, pressure sensors are arranged in the limiting grooves and connected with the control device, the petroleum supply station comprises a hydraulic locking pin control system, and the hydraulic locking pin control system is connected with the hydraulic locking pins.

The present invention relates to communication technology. Disclosed are a terminal positioning method, terminal and positioning server. When determining, according to the serving cell information of a terminal, that the terminal can be positioned via a pseudolite, a positioning server transmits auxiliary data of the pseudolite to the terminal. The auxiliary data of the pseudolite in the terminal can be timely updated to avoid inaccurate positioning of the terminal due to inaccurate auxiliary data of the pseudolite, thus improving terminal positioning accuracy.

The invention discloses an intelligent automation household plate material punching device. The intelligent automation household plate material punching device comprises a base plate and a punching mechanism, wherein the base plate is placed on a horizontal plane, a placing base plate and an installation plate are parallelly arranged above the base plate in sequence, the placing base plate is usedfor placing a household plate material and is provided with a placing groove, the household plate material is embedded and fixed inside the placing groove, the two sides of the placing groove are provided with supporting columns, one ends of the supporting columns are fixedly connected to the base plate, the other ends of the supporting columns extend upwards in the direction perpendicular to thebase plate, the supporting columns are connected with the installation plate, the installation plate is provided with a lifting device, the lifting device is used for ascending and descending of thepunching mechanism and comprises a first motor, a driving gear and a driven gear, the driving gear is connected with the output end of the first motor and is in transmission connection with the drivengear, the driven gear is connected with a screw rod, the screw rod runs through the installation plate in a threaded manner and extends below the installation plate, and the bottom end of the screw rod is connected with an installation frame.

The invention provides a pseudo base station location method and device. The method comprises the steps that suspicious base station information and the user location, which are uploaded by a user, are received; whether the suspicious base station information belongs to pseudo base station information is determined; and if so, according to the user location of at least two users of a pseudo base station to which the pseudo base station information belongs, the location of the pseudo base station is calculated, wherein the user location is reported at the same time. According to the pseudo base station location method provided by the invention, the pseudo base station can be accurately located; accurate information is provided for the relevant law enforcement agencies to clean up the pseudo base station; and the pseudo base station is prevented from sending deceptive or interfering information to user equipment.

A method of positioning vehicles in an enclosed area, comprising the following steps: a. determining whether a reference object coordinate exists in the enclosed area, and if the reference object coordinate exists in the closed area, executing the step b; if no reference object coordinate exists in the closed area, executing the step c; b. calculating vehicle positioning information by an inertialnavigation sensor of a vehicle inertial navigation system; c. respectively calculating vehicle positioning information using a perception sensor and the inertial navigation sensor, wherein the perception sensor periodically corrects positioning errors of the inertial navigation system according to the reference object coordinate; and d, updating the positioning information of the vehicle.

A method for quickly measuring average critical current of a superconducting film comprises the steps of measuring the geometric dimension of a to-be-measured superconducting film sample; cooling the to-be-measured sample to a superconducting state and performing excitation; scanning and measuring a magnetic induction strength B at a geometric center area of the to-be-measured sample by means of a magnetic field measurement device; determining the coordinate of a geometric center point of the to-be-measured sample by means of a maximal value of B; fixing a magnetic field measuring device at a position right above or right below the geometric center point at a distance h for measuring a magnetic induction intensity B which is generated by the to-be-measured sample at the magnetic field measuring device fixing part; performing all above steps on a superconducting film with known average critical current Ic for obtaining the Bc value of the comparing sample; and according to a relationship among Bc, h, Ic and the geometric dimension of the superconducting film, obtaining value of the h based on the geometric dimension of the comparing sample through measurement, Bc value and the known Ic value, and introducing the value of h, the geometric dimension of the to-be-measured sample and the Bc value into the relationship, thereby obtaining the Ic value of the to-be-measured sample.

The invention provides an information processing method. The method is suitable for electronic equipment, and the electronic equipment comprises a first location unit capable of locating the electronic equipment. The method comprises the steps of obtaining a first motion parameter of the electronic equipment measured by the first location unit at the current position in the process of locating the electronic equipment through the first location unit; determining the relationship between the first motion parameter and a predetermined first threshold value; according to the relationship between the first motion parameter and the first threshold value, determining whether to start a preset auxiliary location mode at present; and according to the determined result, achieving current location of the electronic equipment. Meanwhile, the invention provides the electronic equipment. Through the information processing method and the electronic equipment, the location errors can be reduced, and the location accuracy can be improved.

The invention discloses an aircraft winding inspection device and a positioning method thereof, and a readable storage medium. The method comprises the steps: controlling the aircraft winding inspection device to operate around an aircraft, and establishing a laser radar point cloud map of an aircraft wheel under an aircraft coordinate system according to the acquired laser radar point clouds of the aircraft wheel at different moments; in the inspection process, carrying out point cloud matching on the laser radar point cloud of the airplane wheel under the coordinate system of the airplane winding inspection device and the laser radar point cloud map to obtain a conversion matrix of converting the laser radar point cloud of the airplane wheel from the coordinate system of the airplane winding inspection device to the coordinate system of the airplane; and determining the pose of the aircraft winding inspection device under the aircraft coordinate system according to the conversion matrix. The problem that in the prior art, it is inaccurate to determine the pose information of the aircraft winding inspection device through a GPS positioning method is solved.

The invention provides a printed circuit board copper embedding device and a printed circuit board processing method. The device comprises a transfer mechanism, a jacking mechanism, a bearing mechanism, a supporting frame and a clamping mechanism. The supporting frame is used for bearing a printed circuit board. The transfer mechanism comprises two sets of transfer assemblies which are symmetrically arranged and used for transferring the printed circuit board, and the jacking mechanism is arranged below the supporting frame and used for jacking the printed circuit board to a preset height. The bearing mechanism is fixed to the supporting frame and used for loading the copper block to the position below the clamping mechanism. The clamping mechanism comprises a plurality of clamping assemblies and is used for clamping copper blocks into square holes of the printed circuit board. The printed circuit board processing method comprises the following steps: manufacturing a circuit board; manufacturing a copper block; clamping the copper block into the square hole of the circuit board; injecting resin; flattening the circuit board; performing press fit; performing electroplating; drilling holes; and performing copper deposition. The printed circuit board copper embedding device is simple in structure, adapts to the requirements of different printed circuit board sizes, can avoid inaccurate positioning, is convenient to clamp, shortens the production time, and improves the production efficiency.

The invention discloses a page operation thermodynamic diagram drawing method and device. The method comprises: receiving at least one piece of operation data of a user on a page; Page elements corresponding to the operation data are determined, and operation coordinates corresponding to the operation data on the page elements are determined; and drawing a page thermodynamic diagram of the page based on the operation coordinates of the page elements and the operation data corresponding to the operation coordinates of the page elements. According to the method and the device, the operation is positioned on the page element instead of on the whole page, so that the situation of inaccurate positioning caused by position change of the page element is avoided, and the accuracy of page thermodynamic diagram drawing is improved.