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

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 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 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 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.

Embodiments of the present application provide a root cause location method, device, equipment, medium, and product for abnormal production. The method obtains equipment history information and defect rate information of the target batch of products; based on the target level in the equipment history information, history information, construct a plurality of virtual parallel units along the target path; based on the equipment history information and defect rate information of the target batch of products, obtain the defect concentration value of each virtual parallel unit; based on each of the virtual parallel units Bad concentration values ​​for cells to determine the root cause of the anomaly. This method can improve the accuracy of the location of the root cause of the defect; especially for the situation where there is less data when there is a sudden defect in the product production process, it can significantly improve the accuracy of the root cause location of the defect, and solve the problem of the location accuracy of the root cause of the product production process. Low technical issues.

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 discloses a positioning method, device and system, a positioning signal determination method and a terminal, wherein the positioning method includes: acquiring a positioning signal of a terminal to be positioned, wherein the positioning signal includes: a time parameter; according to the positioning The signal is used to locate the terminal to be located. The invention effectively solves the technical problem of low positioning accuracy in the prior art, and achieves the technical effect of effectively improving the positioning accuracy.

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 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 provides a geographic information positioning partitioning method and device based on deep learning. According to the method, a Geology API is used as a mapping tool; the problem that split attributes cannot be selected originally is solved; on this basis, a foundation is provided, A pre-pruning method and a PEP pruning method are designed; a decision tree model of the accurate positioning partition is obtained by combining data and Geology API characteristics and improving based on a decision tree C4.5 algorithm; and according to a preset information gain rate solving algorithm,a split attribute is selected from the solved attribute values, a prediction result obtained through a preset deep learning model is further positioned and partitioned through a preset decision treemodel, accurate partition information is obtained, and the technical effect that the positioning partition precision is not high is achieved.

The invention discloses a positioning method, device and storage medium. Wherein, the method includes: according to the inertial sensing measurement information of the target terminal measured from the k-1th moment to the kth moment, determining the first group of positioning constraint parameters at the kth moment; parameters and the k-1th group of position parameters of the target terminal at the k-1th moment, determine the 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 the k-th Two sets of positioning constraint parameters, determine the positioning correction parameters at the kth moment; modify the kth group of position estimation parameters according to the positioning correction parameters at the kth moment, and obtain the kth group of the target terminal at the kth moment positional parameters. The invention solves the technical problem of low positioning accuracy, and can be applied to technical fields such as maps, navigation, automatic driving, and intelligent transportation.