39 results about "Point localisation" patented technology

The invention discloses a positioning method and device, a storage medium and electronic equipment. The method comprises the following steps: determining longitude and latitude data of a to-be-positioned point, and obtaining a target digital signature corresponding to the to-be-positioned point based on the longitude and latitude data; the target digital signature is used for searching index feature information of an area where the to-be-positioned point is located; determining whether the target digital signature exists in geographic position information stored in a target storage space or not; if yes, a target matching area corresponding to the target digital signature is obtained, and a target area where the to-be-positioned point is located is determined based on the target matching area; and outputting region information corresponding to the target region. According to the invention, the technical problems of poor real-time performance and low positioning accuracy of a positioning method in the prior art are solved.

The application provides a tunnel positioning method, device, equipment, medium and product, the method comprises the following steps: obtaining a plurality of network parameters reported by a user terminal when the user terminal is at a to-be-positioned point in a tunnel, predicted position data of the to-be-positioned point output by an inertial navigation system, and tunnel position data; based on the plurality of network parameters and the tunnel position data, a plurality of first MR fingerprint data are matched from an MR fingerprint library; similarity analysis is performed based on the plurality of first MR fingerprint data and the predicted position data, and MR fingerprint positioning data of the to-be-positioned point is obtained; and position data correction is performed based on the MR fingerprint positioning data and the predicted position data, and actual positioning data of the to-be-positioned point is obtained. The tunnel positioning method provided by the application can accurately calculate the positioning data of a user in a tunnel environment through an algorithm without the need to separately deploy a positioning device in the tunnel environment and without the need to be limited by hardware devices, so that the flexibility is improved while the accuracy is ensured.

The invention discloses a model prediction direct position control method based on point-to-point trajectory planning, and belongs to the technical field of motor control. The method comprises the following steps: measuring a three-phase current signal, a rotating speed signal and a position signal of the PMSM; converting the three-phase current signal into a current component under a two-phase static coordinate system through Clark conversion; performing Park transformation to obtain a d-q coordinate system current signal; and performing voltage prediction to generate a d-q axis voltage control signal. Planning a target curve trajectory; and performing online prediction and rolling optimization. According to the invention, bandwidth limitation of a traditional cascade structure is broken through, position loop time delay is reduced, speed oscillation and position overshoot near a target positioning point are suppressed, stability of a control system is improved, multi-target collaborative optimization of position, rotating speed and current is realized, and economical efficiency and engineering practicability are both realized.

The invention relates to a positioning method and device, electronic equipment and a storage medium. The positioning method comprises the following steps: determining a target distance between a to-be-positioned point and network equipment; determining a plurality of candidate reference points based on the target distance; determining a fingerprint matching degree between the position fingerprint of each candidate reference point and the position fingerprint of the to-be-positioned point; and determining the geographic position of the to-be-positioned point based on the fingerprint matching degree. The positioning method is high in accuracy, can realize indoor high-precision positioning, carries out positioning by means of network equipment, is wide in applicability, and does not need extra power consumption.

1. The name of the design product: cloud control function interaction graphical user interface for electronic devices. 2. The use of the design product: for electronic devices. 3. The design points of the design product: the interface interaction mode and content of the graphical user interface in the screen. 4. The picture or photo that best indicates the design points: design 1 front view. 5. Design 1 is designated as the basic design. 6. The use of the graphical user interface: for building on electronic devices with screens to display information and human-computer interaction interfaces. Design 1 front view is the initial graphical user interface of the cloud control function, users can zoom and move the picture in any direction on this interface, slide the circular cloud control focus on the left side of design 1 front view to the right, enter the graphical user interface as shown in design 1 interface change state diagram 1, the interface shows the effect of the picture moving left as a whole; Design 2 front view is the initial graphical user interface of the cloud control function, users can zoom and move the picture in any direction on this interface, slide the circular cloud control focus on the left side of design 2 front view upwards, enter the graphical user interface as shown in design 2 interface change state diagram 1, the interface shows the effect of the picture moving downwards as a whole; Design 3 front view is the initial graphical user interface of the cloud control function, users can zoom and move the picture in any direction on this interface, slide the circular cloud control focus on the left side of design 3 front view to the left and downwards, enter the graphical user interface as shown in design 3 interface change state diagram 1, the interface shows the effect of the picture moving to the right and upwards as a whole; Design 4 front view is the initial graphical user interface of the cloud control function, users can zoom and move the picture in any direction on this interface, click "+" above "Zoom" on the right side of the interface, enter the graphical user interface as shown in design 4 interface change state diagram 1, the interface shows the effect of the picture zooming in as a whole, click "P+" in the upper right corner of the interface, users can add positioning to the adjusted picture according to their needs to save the real-time position of the picture, such as entering the graphical user interface as shown in design 4 interface change state diagram 2, "P1" positioning point is added in the upper right corner, after further adjusting the picture, click "P1" positioning point to return to the graphical user interface as shown in design 4 interface change state diagram 2, click the circular positioning button in the upper left corner of the interface, return to the initial graphical user interface in design 4 front view.

The present application relates to a posture mapping method, device, computer equipment, computer-readable storage medium and computer program product, which can be applied to various scenarios such as cloud technology, artificial intelligence, smart transportation, and assisted driving. The method includes: obtaining the relative position relationship between multiple positioning points of a physical object, and determining the posture mapping object of the physical object; matching each point of the posture mapping object with each positioning point, and determining the target point that fails to match among each point; based on the relative position relationship, performing position interpolation processing on the target point according to the spatial position constraints between each point, and obtaining the interpolation position information of the target point; based on the relative position relationship and the interpolation position information, performing posture configuration on the posture mapping object, and obtaining the posture mapping result of the physical object. The above method can be used to expand the application scenarios of the posture mapping method.

This invention provides a method and system for extracting structured data from certificates and licenses, applied in the field of data processing technology. This application determines the layout by using the first 5 characters of the first line in the machine-readable area and features of the visually readable area. It dynamically records any unconfigured new layouts, generates new layout configurations and annotations, completes the extraction of structured data for the new layout, and updates the training dataset in real time. A three-level positioning algorithm fusion strategy is employed, using machine-readable area information as a reference to calculate the consistency score of surname and given name groups, the accuracy score of date data, the proportion of structured data acquisition, and the positioning point deviation value. A preset priority ranking is used, and Hough transform and SIFT feature matching are applied to process image deviations, generating a comprehensive positioning processing result. Using verified accurate data from the machine-readable and visually readable areas as a reference, abnormal certificate data is automatically corrected and completed to generate data to be detected. Based on a target dual-channel OCR model, the data to be detected is processed to generate target certificate and license structured data.

The invention discloses a device and method for transmitting multi-point GNSS positioning signals in an indoor distribution system, and relates to the technical field of indoor distribution systems and satellite positioning, the device is adaptive to the tree topology indoor distribution system, and comprises a GNSS signal simulation unit, a frequency generation unit, a combination transmission unit, a terminal processing unit and a positioning broadcast unit; the simulation unit generates GNSS positioning signals GPn of different virtual positioning points through at least two simulators, the frequency generation unit generates local oscillation signals LIN through frequency generators in one-to-one correspondence and performs frequency conversion with the GPn, and the combination transmission unit combines the frequency conversion GNSS signals and the LIN and then broadcasts the frequency conversion GNSS signals and the LIN in a unified manner through POI and indoor distribution feeder lines. The tail end processing unit screens matched signals through a conditioning circuit and recovers GNSS navigation signals of correct frequency points, and the positioning broadcasting unit broadcasts the navigation signals through a newly-added antenna. On the basis of the device, multi-point GNSS positioning signal transmission and broadcasting under the feeder non-power-supply condition are achieved, the problem that a traditional indoor distribution system is difficult to integrate the positioning function is solved, and indoor precise positioning is achieved.

The application provides a method and device, equipment and medium for navigation playback based on user logs, which comprises the following steps: obtaining navigation logs of a user in a playback period; obtaining a set of trajectory point data and a set of route data according to the navigation logs; obtaining positioning points and route update data according to the set of trajectory point data and the set of route data; sending the positioning points and route update data to a navigation engine to execute a navigation task to simulate playback of user navigation, and cutting off new positioning points and route update data received by the navigation engine during the process of simulating playback of user navigation by the navigation engine. The method introduces an automatic playback engine, which facilitates a team to quickly verify a solution to a problem, reduces the need for manual operation, improves the efficiency of problem troubleshooting, and the navigation playback is generated based on user logs, so that the playback is basically consistent with the original navigation site, and even if the problem involves user experience and interface, the problem can be quickly and accurately troubleshooted.

The invention discloses an object identifier image, a decoding method and electronic equipment, in each code point area, m columns and n rows of code point units are arranged, each code point unit is provided with a data point, each code point area is provided with a plurality of positioning points, the size of the positioning points is different from that of the data points, m and n are positive integers greater than or equal to 4, and n is a positive integer greater than or equal to 4. According to the method, the m columns and n rows of code point units are arranged in each code point area, each code point unit is provided with one data point, and the multiple positioning points are arranged in each code point area, so that the information density is higher, the sizes of the positioning points are different from the sizes of the data points, the positioning points can be recognized more quickly, and the positioning accuracy is improved. In the subsequent decoding, each code point area is segmented more accurately, and accurate image correction is realized, so that the decoding efficiency and accuracy are improved.

The invention relates to a form and position code and distance measurement method with an identification and positioning function, comprising a two-dimensional code, a central positioning point, a data check point and a graphic code, the central positioning point is located in the middle of the two-dimensional code, the data check point is located on the side of the two-dimensional code, when the two-dimensional code is scanned, the central positioning point is determined by acquiring the data check point, and the graphic code is scanned; the graphic code is in a preset geometrical shape, and the graphic code is arranged at a preset position on the outer side of the two-dimensional code. The form and position code can be used for the portable pattern recognition equipment to quickly obtain the actual distance from a target point location, and data or point location docking of the pattern recognition equipment in a system model is quickly realized after distance data and system data are exchanged through the data two-dimensional code. And rapid butt joint between model data or a digital twin system and an actual working condition is facilitated.

The invention relates to the technical field of map data, and discloses a degradation compensation-based multi-robot positioning mapping method and system, a terminal and a storage medium, and the method comprises the steps: carrying out the feature extraction of a tunnel environment through employing a main robot and a beacon robot through employing a leapfrog strategy, and if the feature collected by the main robot is judged to have a degradation condition, carrying out the positioning mapping of the main robot; and if not, performing fusion processing by using the highly locatable points acquired by the beacon robot to restrain error accumulation of the main robot so as to optimize the degraded tunnel map. According to the method, the positioning accuracy of the longitudinal translation dimension of the tunnel is improved, decimeter-level accurate positioning is realized, and the mapping robustness and the accuracy of the generated image are improved.

1. The name of the design product: electronic device driver real-time location viewing graphical user interface. 2. The use of the design product: for an electronic device. 3. The design features of the design product: the interface content and layout of the graphical user interface. 4. The picture or photo that best indicates the design features: front view. 5. The use of the graphical user interface: the interface is an interactive interface for viewing the real-time location of drivers based on the team leader. The team leader can visually see the driver information by clicking on the positioning point on the map, and can strengthen the control of the drivers who have been in an idle state for a long time according to the distribution of the driver state. The front view is the main interface for viewing the real-time location of drivers based on the team leader. After clicking on the "positioning point" of the front view, the interface changes to the state diagram. 6. Other circumstances that need to be explained: the map is only for display purposes and is not within the scope of protection.

The invention discloses a method, a device, equipment and a product for determining positioning information in a three-dimensional model. The method comprises the following steps: determining one surface of the three-dimensional model as a reference surface; key characters are set, nodes are selected in the three-dimensional model, and positioning points are created at the nodes which contain the key characters and are characterized by points; establishing direction lines of the positioning points, wherein the direction lines respectively point to the extension directions of two ends in the horizontal direction, two ends in the vertical direction and two ends in the normal direction of the reference surface. The invention discloses a method, a device, equipment and a product for determining positioning information in a three-dimensional model, which can quickly create a positioning point for the three-dimensional model. The method has the advantages that the repeated labor intensity of related personnel for creating the positioning points is reduced, missed selection and wrong selection of the positioning points are avoided as much as possible, the working efficiency is improved, and the method is suitable for three-dimensional models of various types of products.

The invention discloses a method for establishing a six-point positioning coordinate system. The method comprises the steps of performing data preprocessing to obtain a scanning data grid model and a design data grid model; performing rough matching to obtain a scanning data grid model subjected to rough matching; performing fine matching to obtain six fine matching points and a scanning data grid model subjected to fine matching, wherein algorithm errors between the six fine matching points and the six positioning points specified on the design data grid model reach a convergence standard on the scanning data grid model subjected to rough matching; performing six-point iterative correction to obtain a final transformation matrix on the scanning data grid model subjected to fine matching, wherein the distance error between the final transformation matrix and the six positioning points reaches a convergence standard; and applying the final transformation matrix to the scanning data grid model to obtain a scanning data grid model subjected to six-point iteration correction, thereby obtaining a six-point positioning coordinate system of the scanning data grid model.

The invention relates to a method for realizing automatic visualization processing for C-V2X roadside messages. The method comprises the following steps: extracting messages which can be used for visually presenting a traffic environment from C-V2X messages; analyzing the message, and calculating longitude and latitude values according to a rule; classifying the data into three geometrical shapes of points, lines and surfaces; positioning the data position of the point, endowing a corresponding icon or filling a color, and taking the text content in the message as the label field of the point; positioning data positions of the lines, and endowing line segments with different styles and colors; and positioning the data position of the surface, and endowing the surface with different styles and colors. By the adoption of the method and device for achieving automatic visualization processing of the C-V2X roadside message, the processor and the computer readable storage medium, traffic environment information can be presented more efficiently and visually, and the data information analysis efficiency of a user is improved; the dynamic process of data can be displayed, a user is helped to judge traffic environment changes, meanwhile, abnormal values are easy to perceive, and problems can be found quickly.

The application relates to a point cloud sequence data processing method and device, computer equipment and a storage medium. The method comprises the following steps: acquiring point cloud sequence data of an area where a moving object is located in a target scene, locating obstacle points of each frame of point cloud sequence in the point cloud sequence data, projecting the obstacle points of each frame of point cloud sequence to obtain occupancy grid map sequence data, each occupancy grid map carrying a time parameter and position information of the moving object when the occupancy grid map is constructed, correcting the occupancy grid map at the current time based on the time parameter and the position information of the moving object, and determining the motion obstacle points of the occupancy grid map at the current time and the motion information of the motion obstacle points. According to the scheme, multi-frame point cloud data is processed, and an accurate occupancy grid map at the current time can be obtained, so that the accuracy of the drivable area detection is improved.

The invention provides a method and a device for navigation playback based on a user log, equipment and a medium. The method comprises the following steps: acquiring a navigation log of a user in a to-be-played-back period; obtaining a track point data set and a route data set according to the navigation log; according to the track point data set and the route data set, positioning points and route updating data are obtained; and sending the positioning point and route update data to a navigation engine to execute a navigation task so as to simulate playback of user navigation, and intercepting new positioning point and route update data received by the navigation engine in a process of simulating the playback of user navigation by the navigation engine. According to the method, an automatic playback engine is introduced, a solution of a team to quickly verify problems is facilitated, the need of manual operation is reduced, the efficiency of troubleshooting of the problems is improved, navigation playback is generated based on user logs and is basically consistent with an original navigation site during playback, and even if problems related to user experience and interfaces are solved, the navigation playback efficiency is greatly improved. And the troubleshooting can be carried out more quickly and accurately.

A method for marking a hybrid model of an object implemented by a marking system (1, 2), said hybrid model comprising at least a physical model (4) of the object in a physical environment and a digital model (5) of the object, the method comprising the following steps: - collecting (340) positioning data of a physical point of interest of the physical model (4) in a first predefined (X, Y, Z) three-dimensional coordinate system, - identifying (360), in real time, a position of a virtual point of interest on the digital model (5) in a second predefined (x, y, z) coordinate system, said virtual point of interest being associated with the physical point of interest and said position being obtained from the collected positioning data, - generating (370) a digital marking associated with said position on the digital model (5) of the object. Abstract figure: Figure 1

The invention discloses an electrified railway contact line multi-point state monitoring device, and relates to the technical field of pantograph-catenary systems, the electrified railway contact line multi-point state monitoring device comprises a monitoring group, the monitoring group comprises an area-array camera, a data acquisition instrument and a local upper computer, the area-array camera is arranged towards a positioning point and a dropper point of a contact line, and the data acquisition instrument is connected with the local upper computer; the horizontal height of the area-array camera is higher than or lower than that of the contact line, and the area-array camera is electrically connected with a local upper computer through a data acquisition instrument; according to the invention, the area-array camera can be used for synchronously monitoring the positioning point and the dropper point to obtain the dynamic characteristics of the multi-point position, so that the monitoring effect is improved, and meanwhile, the area-array camera does not need to be arranged on the pantograph, can be arranged on one side of the contact line, is not restricted by vehicle movement and plans, can be used for monitoring in real time, and improves the application range.

The application discloses a three-dimensional panoramic super-resolution positioning data splicing method and device, equipment and medium, relates to the technical field of image processing, the positioning point of three-dimensional panoramic image is layered, the layered positioning point is aggregated based on the optimal neighborhood range, the spatial geometric structure is determined, the multi-head self-attention module is used for feature aggregation and semantic information propagation of the spatial geometric structure, the attention weight is calculated, the local spatial geometric feature is adaptively reweighted and iteratively updated, the local spatial geometric feature and the updated feature are fused, and the semantic feature is obtained; the first semantic feature is matched in geometric structure and semantic feature, the matching confidence between the first semantic features is calculated, and the second semantic feature is screened; the spatial offset is calculated by using the weighted centroid, so that the target positioning point is spliced, the splicing misplacement problem caused by the density heterogeneity of the splicing joint positioning data is solved, and the accuracy and efficiency of the three-dimensional panoramic super-resolution positioning data splicing are improved.

The application provides a thematic map frame finishing method and system, and belongs to the field of map making. The method is to obtain a base map range file, a rectangular base map and left and right lower corner note instructions through a windowed interactive interface, analyze the base map range file to obtain base map information, obtain geographical coordinates of four corner points of an inner frame according to the base map information, obtain document coordinates of the four corner points after coordinate conversion, draw a latitude and longitude grid, the inner frame and an outer frame, place the rectangular base map into the inner frame according to the calculated positioning points, realize the fitting of the actual base map and the inner frame, group and rotate the inner frame, the outer frame, the latitude and longitude grid and the rectangular base map together and place them flat, finally generate a map name, left and right lower corner texts and a scale, and output the thematic map after frame finishing. The application solves the defects of lack of standardization and flexibility of automatic frame finishing of commercial GIS software, realizes one-step standardization frame finishing, and improves the production efficiency and automation level.

The invention provides an indoor positioning method, which belongs to the technical field of wireless positioning, and comprises the following steps: collecting position fingerprint data of each reference point, and constructing an offline position fingerprint database; collecting real-time position fingerprint data of the to-be-positioned point; calculating a fingerprint similarity difference based on the real-time position fingerprint data of the to-be-positioned point and an offline position fingerprint database; according to the fingerprint similarity difference and a preset difference threshold value, determining a target K value through an adaptive weighted K-nearest neighbor algorithm; transforming the distance corresponding to the fingerprint similarity difference based on a soft range limitation algorithm to obtain a transformed distance; according to the target K value and the transformed distance, K reference points are selected from the offline position fingerprint database, and the position of the to-be-positioned point is obtained through calculation. Compared with the prior art, the method has the advantages that the traditional KNN algorithm is replaced by the adaptive weighted K-nearest neighbor algorithm and the soft range limitation algorithm, and the indoor positioning precision in a complex scene is improved. The system has the same beneficial effects.

The invention provides a control method, a control device, an assembling system and electronic equipment, relates to the technical field of computer vision, and aims to solve the problem of poor positioning precision and efficiency. The control method comprises the following steps: acquiring current spatial pose information of a preset surface of a target object through a first type of camera; according to the current space pose information and the reference information of the preset surface of the target object, driving the target object to move in any direction, so that the preset surface is located on a reference surface indicated by the reference information; under the condition that the preset surface is located on the reference surface, obtaining an image of the preset surface through a second-class camera; the image comprises a positioning point; determining position information of a positioning point on the preset surface in the image; and according to the position information of the positioning point in the image, driving the target object to move in the direction parallel to the reference surface and / or vertical to the reference surface, so that the positioning point is located at a preset position.

The invention provides a point cloud lane line marking method and device, a storage medium and electronic equipment, and is applied to the technical field of intelligent driving. According to the method, the point cloud lane line map is constructed by integrating the multi-frame image data acquired by the target positioning point, the lane line data of each image frame is accurately acquired and converted by using the positioning information, and batch marking of the point cloud lane lines is realized on the cloud marking platform, so that the precision and efficiency of point cloud lane line marking are improved.

The present application relates to the technical field of industrial automation plate positioning, and specifically relates to a method for acquiring a six-point clamping jaw fixing point of a general rigid plate, which comprises the following steps: (1) configuring a file and importing a standard DXF file containing a graph, analyzing and acquiring a processing graph; determining whether the processing graph is connected at the beginning and the end and closed; if yes, the next step is entered; (2) determining whether the processing graph is legal; if yes, a limiting position is drawn, and a calculation auxiliary line is generated for user dragging; (3) segmenting the legal processing graph, and acquiring graph data after segmentation; after the graph data after segmentation is offset and expanded outward according to the radius of a positioning clamp or a positioning wheel, a round corner compensation is performed, a moving path of the positioning clamp or the positioning wheel is obtained, an auxiliary line that can be moved by a user is generated, and a positioning point is determined. The method can realize high-precision, simple operation, strong universality and intuitive calculation process of plate positioning for supporting complex special-shaped plates.

1. The name of the design product: graphical user interface for electronic device auxiliary positioning. 2. The use of the design product: an electronic device. 3. The design points of the design product: in the graphical user interface. 4. The picture or photo that best indicates the design points: interface change state diagram 2. 5. The use of the graphical user interface: for smart device auxiliary positioning operation on cleaning device. 6. The human-computer interaction mode of the graphical user interface: the main view is the interface that displays the cleaning map auxiliary dotting state, the user touches the "auxiliary dotting" button of the main view, the interface jumps to the type operation list interface of interface change state diagram 1 auxiliary dotting, the user touches the "positioning point" button in interface change state diagram 1, the cleaning device judges the positioning accuracy, the interface jumps to the operation instruction interface of interface change state diagram 2 reflective sticker auxiliary positioning, the user operates according to the operation instruction, touches the "start marking" button of interface change state diagram 2, the interface jumps to the "marking success" interface of interface change state diagram 3, and the interface displays the position and state of the current positioning point marking. 7. Other circumstances that need to be explained: the schematic map in each view belongs to the content picture and will change with different use areas.

The present application discloses a positioning method, apparatus, device, chip, and storage medium. The method includes: determining M candidate positioning points; selecting N candidate positioning points from the M candidate positioning points based on at least one scoring metric; and clustering the N candidate positioning points to determine a target positioning point. This method not only improves positioning accuracy but also reduces the computational complexity of the subsequent clustering algorithm.

The invention relates to a positioning method and device, electronic equipment, a storage medium and a computer program product. The method comprises the following steps: acquiring information of a plurality of track points of movement of the terminal equipment, and determining part of the track points as first positioning points; in response to the first instruction, determining and displaying a reference motion track according to the plurality of first positioning points; the reference motion trail comprises a reference motion direction. And acquiring a track point of the terminal device along the reference motion direction as a second positioning point. And determining and displaying the current movement track state according to the position relationship between the reference movement track and the second positioning point. In this way, the number of the screened first positioning points is small, the calculation amount of the reference movement track is reduced, and the sensitivity and accuracy of judging whether the current movement track is yawed or not based on the reference movement track can be improved.

The present invention discloses an indoor positioning method, device and system. The method includes obtaining an offline coordinate fingerprint library corresponding to different positioning regions, where each offline coordinate fingerprint library includes reference point coordinates and RSSI values corresponding to each reference point; respectively training a DAE model and an RNN model based on the data in each offline coordinate fingerprint library; determining the positioning region where the point to be located is located, and screening out the trained DAE model and RNN model corresponding to this positioning region; obtaining the RSSI value of the point to be located, and sequentially sending it to the screened DAE model and RNN model to calculate the coordinates of the point to be located. The present invention first performs regional positioning, and then uses the combination of fingerprint positioning and neural network for accurate position positioning, which can effectively resist environmental interference.