32results about How to "Solve the technical problem of low positioning accuracy" patented technology

The invention discloses a locating method and device of electronic equipment, the electronic equipment and an electronic locating system. The method comprises the steps: calculating out a prospected pose position of target electronic equipment at a second moment according to pose position information of the target electronic equipment at a first moment and state increment of target electronic equipment at the second moment relative to the first moment, wherein the first moment is ahead of the second moment; obtaining first detection data by detecting a beacon, wherein the first detection data carry relative position information of the beacon and the target electronic equipment; screening out the first detection data which can meet a first preset condition to obtain first target detection data; correcting a beacon map and the prospected pose position of the target electronic equipment at the second moment according to the first target detection data; utilizing the corrected pose position as the pose position of the target electronic equipment at the second moment. The method disclosed by the invention solves the technical problem that electronic equipment location accuracy is low in the prior art.

The invention provides a vehicle positioning system and positioning method based on a two-dimensional code, and the system comprises an image collection device, a positioning controller, and a positioning two-dimensional code disposed on a track. The image acquisition device is connected with the positioning controller. The image acquisition device is used for carrying out image acquisition on thepositioning two-dimensional code to obtain a two-dimensional code image and sending the two-dimensional code image to the positioning controller; and the positioning controller is used for receivingthe two-dimensional code image and analyzing the two-dimensional code image to obtain the position of the positioning two-dimensional code, and taking the position of the positioning two-dimensional code as the current position of the vehicle. By means of the system, vehicle positioning can be achieved according to the positioning two-dimensional code on the track, omnibearing reading is achieved.The vehicle positioning accuracy and the environment adaptability and fault-tolerant capability of the positioning system are improved, and the technical problems that in the prior art. The environment adaptability is poor, and the positioning accuracy is low are solved.

The invention provides a user locating method and device. The method comprises the steps that first audio information acquired by an audio acquisition unit is acquired, and the first audio information is analyzed so that the analysis result is acquired; when the analysis result represents that the first audio information is used for indicating mobile equipment to locate a target user, first location information between the target user and the mobile equipment is calculated according to the first audio information; first control parameters are acquired according to the first location information, and the mobile equipment is controlled to enter the tracking state according to the first control parameters; and the mobile equipment in the tracking state acquires images through an image acquisition unit and acquires second location information between the target user and the mobile equipment and / or the image acquisition unit based on the acquired images.

The invention discloses an UWB (Ultra Wideband) positioning method and system for automatic navigation and positioning of an agricultural working machine. The method comprises the following steps: adjusting the ascending and descending of a base station, measuring the distance between a base station and a mobile station in real time, and taking a height corresponding to a shortest distance as a height at which the base station and the mobile station are positioned at the same level; reading the GPS distance between base stations through a GPS / BD differential positioning system of the base station; and resolving the positioning coordinates of the base station according to the GPS distance, and resolving the coordinates of the mobile station according to the distance between the mobile station and the base station. Through adoption of the UWB positioning method and system, the technical problem of low automatic navigation and positioning accuracy in an existing agricultural working machine is solved. The base station is kept at the same horizontal plane according to the principle that the fixed point distance between the base station and the mobile station is shortest through the level change of the base station, so that the positioning coordinates of the base stations in the working areas on the same horizontal plane can be obtained accurately, and high-accuracy coordinates of the mobile station can be resolved rapidly.

The invention discloses a positioning method, device and system based on wireless communication. The method comprises the steps: positioning a target object through a GPS, and determining a preliminary position range where the target object is located, wherein the target object is a to-be-positioned object; reading a radio-frequency signal transmitted by an electronic tag in the preliminary position range through a radio-frequency reader-writer, wherein the electronic tag is disposed on the target object, and the target object is the to-be-positioned object; detecting the signal intensity of the radio-frequency signal read by the radio-frequency reader-writer; determining the relative position information of the radio-frequency reader-writer and the electronic tag according to the signal intensity of the radio-frequency signal; and carrying out the positioning of the target object according to the relative position information of the radio-frequency reader-writer and the electronic tag. According to the invention, the method, device and system solve a technical problem that the positioning precision of a target object is low.

The invention discloses a positioning method and device, a storage medium and a processor. The method comprises the steps: acquiring a positioning request of a to-be-positioned point , wherein the positioning request at least comprises feature information of the to-be-positioned point; determining a positioning parameter corresponding to the to-be-positioned point according to the feature information; analyzing the positioning parameters according to a random forest regression model, acquiring longitude and latitude coordinates of the to-be-positioned point, and acquiring the random forest regression model by training at least one set of training data through machine learning, wherein each set of training data comprises the positioning parameters and the longitude and latitude coordinates.The technical problem of low positioning precision in the prior art is solved.

The invention discloses a method for positioning a terminal, an ammeter, a server and a handheld terminal. The method comprises the following steps: receiving space position information of a first terminal reported by the first terminal, wherein the space position information comprises longitude and latitude of the first terminal, horizontal coordinate of the first terminal in a building of the first terminal and height of the first terminal from the ground; positioning the space position of the first terminal according to the space position information reported by the first terminal. The technical problem of low positioning accuracy of the existing positioning technology is solved, and the technical effect that the positioning terminal can also be accurately positioned indoors is achieved.

The invention discloses a positioning control system for an oxygen lance device. The positioning control system comprises a frequency converter, a position encoder, a programmable logic controller (PLC) and an oxygen lance motor. The position encoder is used for detecting the lance position detection value of the oxygen lance device in real time and sending the detection value back to the PLC in the process that the oxygen lance motor drives the oxygen lance device to move. The PLC is used for generating a speed control instruction and a starting and stopping instruction matched with the current lance position difference according to a current lance position set value and the lance position detection value and sending the instructions to the frequency converter. The frequency converter at least controls the oxygen lance motor according to the speed control instruction and the starting and stopping instruction, so that the oxygen lance motor drives the oxygen lance device to continuously move to the lance position corresponding to the current lance position set value. It can be guaranteed that the oxygen lance device stably and rapidly arrives at the set lance position even in times of decelerated operation, and thus the technical problem of being low in positioning accuracy when an existing oxygen lance device drive system approaches a target position is solved. Hence, the whole-process positioning accuracy of the oxygen lance device is guaranteed.

The invention discloses a terminal positioning method, a mobile terminal and a computer readable storage medium. The method comprises the steps: binding the communication connection between a GPS bracelet and a mobile terminal, and detecting whether the GPS positioning on the mobile terminal is abnormal or not: switching the mobile terminal to the GPS bracelet if the GPS positioning is abnormal, obtaining the first positioning information of the mobile terminal through the GPS bracelet, and enabling the mobile terminal to obtain the second positioning information of a network side through theInternet; finally calculating the actual location information of the mobile terminal according to the first positioning information and the second positioning information. The method achieves the purpose of achieving the precise positioning without the GPS of the terminal through the assistance of the bracelet and the network of the mobile terminal, solves a problem that the positioning accuracy of network positioning is lower in the prior art, and effectively improves the positioning accuracy.

The embodiment of the invention discloses a robot positioning method and device, a robot and a storage medium, and relates to the technical field of robots. The method comprises the steps of: acquiring laser point cloud data collected by the robot at a current frame and a first state of the current frame; drawing a first local map of the robot according to the laser point cloud data; determining alocal measurement residual error according to the first local map, the laser point cloud data, the first state and a second state of the robot in a previous frame; determining a global measurement residual error according to a global map, the laser point cloud data and the first state; determining an inertial measurement residual error according to the first state, the second state and the inertial measurement data; adding the first state into a sliding window, and constructing an optimization function according to the local measurement residual error, the global measurement residual error and the inertial measurement residual error corresponding to each frame in the sliding window; and positioning the robot according to the optimization function. By adopting the method, the technical problem of low robot positioning accuracy when the current environment changes in the prior art can be solved.

The invention discloses a method and apparatus for the positioning a satellite image. The method comprises the following steps: acquiring orbit determination and attitude determination data of the satellite image; based on the orbit determination and attitude determination data, using a secondary polynomial model for performing fitting to obtain an initial attitude angle element value; based on the initial attitude angle element value, obtaining angle elements of a connection point, performing calculation in combination with orbit determination parameters of the connection point of the satellite image and a picpointed coordinate to obtain a ground coordinate of the connection point; based on the picpointed coordinate of the connection point, the ground coordinate and the initial attitude angle element value, removing a gross error point in combination with adaptive weight distribution, performing calculation through resection to obtain an initial attitude angle element correction value; based on the initial attitude angle element correction value, correcting the initial attitude angle element value to obtain the corrected high-precision initial attitude angle element. According to the invention, the method addresses the technical problem of inability of meeting requirement for precise positioning of an object by only using the satellite to uploading and downloading data, and realizes high-precise positioning of no ground control points.

The application provides an electric power construction site positioning and monitoring system. The system comprises a mobile satellite positioning terminal, a satellite reference station and a data center platform. The satellite reference station is arranged at a power construction site; the mobile satellite positioning terminal is in communication connection with the satellite reference stationand the data center platform through the wireless communication device and is used for conducting positioning according to a received differential signal of the satellite reference station to obtain positioning information and sending fence early warning information to the data center platform when the mobile satellite positioning terminal is determined to moves across the boundary based on the positioning information; and the data center platform is used for monitoring the position of the mobile satellite positioning terminal according to the received fence early warning message. According tothe application, the satellite reference station is arranged and the differential signal is sent to the mobile satellite positioning terminal through the satellite reference station, so that the positioning accuracy of the mobile satellite positioning terminal is improved and a technical problem of low positioning precision of the existing power construction site positioning monitoring is solved.

The invention discloses an autonomous landing method and a system for an unmanned aerial vehicle based on monocular vision and an electronic device. The method comprises steps: according to an aerial image acquired in advance, a Gaussian pyramid image is acquired; edge detection is carried out on the Gaussian pyramid image to acquire an edge image; a coarse scale Hough transform method is adopted to acquire a first straight line and a second straight line from the edge image; a selective iteration random sampling consensus algorithm is adopted for the first straight line and the second straight line to acquire a third straight line and a fourth straight line; and according to the third straight line and the fourth straight line, landing parameters of the unmanned aerial vehicle are acquired to enable the unmanned aerial vehicle to perform autonomous landing. The technical problem that the unmanned aerial vehicle landing method in the prior art is not high in positioning precision can be solved.

The invention relates to the technical field of electronic communication, and provides a positioning antenna and wearable equipment. The positioning antenna comprises an annular radiator which is connected with a coupling body in a coupling manner, and the coupling body extends along the edge of the annular radiator; the positioning antenna further comprises a feed branch knot which is in couplingconnection with the annular radiator; one end, far away from the annular radiator, of the feed branch knot is used for accessing a radio frequency signal; the positioning antenna further comprises agrounding branch knot which is in coupling connection with the annular radiator; one end, far away from the annular radiator, of the grounding branch knot is used for accessing a geoelectric signal; the annular radiator of the positioning antenna can generate right-handed circular polarization radiation, so that the positioning antenna can better receive a navigation satellite signal, and meanwhile, the right-handed circular polarization radiation generated by the annular radiator can also filter the left-handed circular polarization navigation satellite signal reflected by a tall building orthe ground to reduce multipath interference; and the positioning precision of the positioning antenna of the wearable equipment is effectively improved.

The invention discloses a friction force modeling method of an electromechanical system and application thereof, and belongs to the field of electromechanical system dynamics analys. The modeling method comprises the steps that a speed threshold value is set, when the speed of the electromechanical system is between a speed zero point and the speed threshold value, linear fitting is conducted on friction force of the electromechanical system, and a low-speed-section friction model is obtained; and when the speed of the electromechanical system is greater than a speed threshold value, nonlinear fitting is carried out on the friction force of the electromechanical system to obtain a high-speed section friction model. Aiming at the condition that the direction and size of friction force at the position where the speed of the electromechanical system is zero are uncertain, a speed threshold value is set, and linear fitting is carried out between the speed zero point and the threshold value; aiming at the viscous friction attenuation condition at a high speed, nonlinear fitting is carried out on a high-speed section by introducing a viscous friction attenuation coefficient; thus, by improving the friction model, the positioning precision of the electromechanical system is improved.

The invention provides a trilateral positioning method, device and system. The method comprises the following steps: respectively acquiring distances from a plurality of base stations to a label by adopting bilateral bidirectional distance measurement, and generating a plurality of circles by taking each base station in the plurality of base stations as a circle center and taking the acquired corresponding distance as a radius; determining an intersection area of the plurality of circles, and correcting the intersection area according to an error value of the bilateral bidirectional distance measurement to obtain an effective area; and calculating an average value of the coordinate values of the plurality of points in the effective area to obtain an estimated coordinate of the label so as to position the label. According to the invention, the technical problem of low positioning accuracy caused by existence of non-line-of-sight is solved.

The invention discloses a positioning method and device and a storage medium. The method comprises the following steps: determining a first group of positioning constraint parameters at the k-th moment according to inertial sensing measurement information, measured from the (k-1)-th moment to the k-th moment, of a target terminal; determining a k-th group of position estimation parameters of the target terminal at the k-th moment according to the first group of positioning constraint parameters and a (k-1)-th group of position parameters of the target terminal at the (k-1)-th moment; determining a positioning correction parameter at the k-th moment according to the first group of positioning constraint parameters and the second group of positioning constraint parameters at the k-th moment; and according to the positioning correction parameter at the k-th moment, correcting the k-th group of position estimation parameters to obtain the k-th group of position parameters of the target terminal at the k-th moment. The technical problem of low positioning accuracy is solved, and the method can be applied to the technical fields of maps, navigation, automatic driving, intelligent transportation and the like.

The invention discloses a positioning method, device and system, a positioning signal determining method, and a terminal. The positioning method comprises the steps: obtaining a positioning signal ofa to-be-positioned terminal, wherein the positioning signal comprises a time parameter; and carrying out the positioning of the to-be-positioned terminal according to the positioning signal. Accordingto the invention, the method effectively solves a technical problem that the positioning precision is low in the prior art, and achieves the effective improving of the positioning precision.

The invention discloses a fault positioning method, device and system. The method comprises the steps that if it is detected that a system breaks down, a stack area of a kernel stack and a stack areaof a user stack are printed, and a printing result is obtained; storing the printing result, and controlling the system to be restarted; if the system is restarted, a fault type is determined based onthe print result. The technical problem of low positioning accuracy due to the fact that a fault positioning method in the prior art cannot acquire fault information in time when a fault occurs is solved.

The invention discloses a sarong yarn rod positioning method and device, a storage medium and a processor. The method comprises the steps: in the non-production process of the sarong, the positions ofa plurality of yarn rods of the sarong on a target station are detected respectively, and first position information of the yarn rods is obtained; in the production process of the sarong, a pluralityof first yarn rods are determined from the plurality of yarn rods, and the positions of the plurality of first yarn rods on the target station are detected respectively to obtain second position information of the plurality of first yarn rods; first position information of a plurality of first yarn rods is determined from the first position information of the plurality of yarn rods, and the posedeviation of the sarong is determined according to the first position information of the plurality of first yarn rods and the second position information of the plurality of first yarn rods; and target position information of each yarn rod in the production process of the sarong is determined based on the pose deviation and the first position information of each yarn rod. The technical problem that the positioning precision of the sarong in the production process is low is solved.

The invention discloses a friction force modeling method of an electromechanical system and an application thereof, belonging to the field of dynamic analysis of electromechanical systems. The frictional force of the electromechanical system is linearly fitted to obtain the friction model of the low-speed section; when the speed of the electromechanical system is greater than the speed threshold, the frictional force of the electromechanical system is nonlinearly fitted to obtain the frictional model of the high-speed section. Aiming at the situation that the direction and magnitude of the friction force at the zero speed of the electromechanical system are uncertain, the present invention sets a speed threshold, and performs linear fitting between the speed zero and the threshold. The friction attenuation coefficient is nonlinearly fitted to the high-speed section, and the friction model is improved to improve the positioning accuracy of the electromechanical system.

The embodiment of the present invention discloses a positioning method, device, device and server for a mobile terminal. When used for a mobile terminal, the method includes: acquiring auxiliary positioning information, wherein the auxiliary positioning information includes different wireless networks searched by the mobile terminal. The network identifier of the network; reporting the auxiliary positioning information to the server, so that the server obtains the current location information of the mobile terminal according to the auxiliary positioning information; receiving the current location information issued by the server. In this way, the server can obtain more available information from the mobile terminal, and use the coverage relationship of multiple wireless networks in the same area to narrow the positioning range, thereby obtaining a more accurate location of the mobile terminal, which solves the problem of mobile terminal positioning in the base station positioning service. Technical problems with low precision.

The embodiment of the invention provides a root cause positioning method and device for abnormal production, equipment, a medium and a product. The method comprises the following steps: acquiring equipment resume information and reject ratio information of a target batch of products; constructing a plurality of virtual parallel units along a target path based on resume information of a target level in the device resume information; based on the equipment resume information and the reject ratio information of the target batch of products, obtaining the defective concentration degree value of each virtual parallel unit; and determining an abnormal root cause based on the bad concentration degree value of each virtual parallel unit. The method can improve the accuracy of bad root cause positioning; especially for the situation that data is less when unexpected faults occur in the product production process, the accuracy of positioning the bad root causes can be remarkably improved, and the technical problem that the accuracy of positioning the root causes in the product production process is low is solved.