42results about How to "Reduce positioning complexity" patented technology

A positioning processing method, a business platform and a network system are provided. The method includes receiving geographical location information sent by a terminal, mapping the geographical location information into a corresponding grid mark, determining whether the grid mark is in a grid index table or not, and if the grid mark is in the grid index table, positioning the geographical location information of the terminal to longitude and latitude coordinates of a grid center point corresponding to the grid mark according to a corresponding relation between each grid mark in the grid index table and longitude and latitude coordinates of a grid center point of each grid, wherein the grid mark is corresponding to longitude and latitude codes of a reference point in a corresponding grid, the longitude and latitude codes of each reference point are obtained by coding the longitude and latitude coordinates of the reference point, and longitude and latitude coordinates of points in each grid are mapped into a same grid mark. Positioning of the terminal position as the longitude and latitude coordinates of the grid center point is achieved by mapping the terminal position into the grid mark and searching the corresponding the grid mark in the grid index table, thus increasing the positioning processing efficiency.

The embodiment of the invention discloses a method for acquiring the relative distance of terminals and a terminal, and relates to the technical field of wireless communication. The method may increase distance acquisition precision, reduces manpower and material resource cost, and comprises steps that a first terminal sends a distance acquisition request to a second terminal; the first terminal acquires the terminal information of the first terminal; after acquiring the distance acquisition request, the second terminal acquires the terminal information of the second terminal and sends the terminal information to the first terminal; and after receiving the terminal information sent by the second terminal, the first terminal matches the terminal information with the terminal information of the first terminal, and calculates the relative distance between the first terminal and the second terminal according to a matching result. The method applies to terminal distance acquisition in a Wi-Fi signal field.

The invention provides a stepwise indoor three-dimensional positioning method for use in a multi-floor environment, and relates to the field of indoor positioning. Three-dimensional positioning is finished through the two steps of floor positioning and plane positioning according to stepwise and dimension reduction thoughts, and accurate positioning of an MT (Mobile Terminal) is realized through a positioning method based on a TDOA (Time Difference of Arrival). The method comprises the following steps: firstly, judging a symbol of a measured value through a judgement mechanism to finish floor positioning of the MT and determine a floor on which the MT is positioned; and then, performing plane positioning on the MT to fulfill the aim of determining the position of the MT. Compared with the prior art, the method has the advantages that three-dimensional positioning of an unknown MT is realized; positioning APs (Access Points) are arranged easily and rapidly; a positioning principle is simple; the positioning accuracy is high; the positioning complexity is low; a database does not need to be pre-established for a multi-floor building to be positioned; a positioning process is simplified; and the portability is high. The method can be applied to various positioning applications of floor information and position information.

The invention provides an indoor floor positioning method based on TOA (Time Of Arrival), and belongs to the field of positioning technology. The floor position of an MT (Mobile Terminal) to be solved can be pre-estimated according to the floor number of a positioning AP (Access Point) by controlling the transmitting power of the AP, and then the MT floor position solved by a specific algorithm is corrected to realize floor positioning of the MT to be solved, wherein a few positioning APs are adopted, so that the burden of the system is reduced, and the positioning cost is lowered; the positioning APs are arranged simply and quickly and are simple in positioning principle and high in positioning accuracy, so that the difference of transceiver gains does not need to be considered, the physical requirement for a transceiver antenna is reduced, the positioning complexity is low, a database does not need to be pre-established for a multi-floor building to be positioned, the positioning process is simplified, the portability is high, and the method can be combined with various different plane positioning methods to realize three-dimensional spatial positioning of a target to be positioned.

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 provides a method for WLAN indoor positioning Radio Map updating based on information entropy and relates to a WLAN indoor positioning method. The method solves the problem that an existing WLAN indoor positioning Radio Map updating method is poor in positioning accuracy, has complexity in positioning and is large in updating workload. AP signal strength RSS values measured in every reference point are stored in a Radio Map, APs with information entropy large are selected, mutual information entropy between every two APs is calculated; after the APs with information entropy large are selected, a Hidden Markov model is utilized to update the Radio Map at an off-line stage, a KNN algorithm is used to respectively compare positioning accuracy of the Radio Map at the off-line stage and the updated Radio Map with RSS vectors measured at an on-line stage, and the updated Radio Map is favorable for improving positioning accuracy compared with the Radio Map prior to updating. The method is suitable for WLAN indoor positioning.

The invention provides an asynchronous ultra wide band positioning method and an asynchronous ultra wide band positioning system based on two-way distance measurement. The invention has the advantages that distance between a target node unit and an anchor node unit is obtained in the step of measuring the distance between the target node unit and the anchor node unit, and then the target node unit is positioned; and by changing a repetition period of a transmission pulse, the anchor node unit and the target node unit can be conveniently identified, positioning complexity is reduced, and efficiency is improved.

Provided is a watermarking embedding and authentication method of positioning PDF electronic invoice falsification, comprising: A, watermarking generation based on a file reading page, concretely including blocking a reader page, parsing a code page file structure, generating authentication information, and generating watermarking in dependence on the authentication information; B, watermarking embedding based on file codes; C, updating of a cross reference and an end-of-file; and D, generation of a PDF electronic invoice file with watermarking, including performing E authentication information reconstruction, authentication information extraction and F falsification authentication on a PDF electronic file to be detected, and F falsification authentication including falsification authenticity determination and falsification positioning and marking. The method can guarantee invisibility of watermarking, and meanwhile control file increment within 1%. The method has the characteristics of high falsification detection accuracy, and low false drop rate, and can effectively resist replacing, adding, deleting, etc.

The invention provides a scheduling method, a scheduler, a storage medium and a system, and belongs to the technical field of communication. The scheduling method comprises the steps: acquiring an incidence relation graph and data distribution information, wherein each node in the incidence relation graph refers to one piece of data, and each directed edge is used for representing an operation request for calculating according to the data referenced by a source node to obtain the data referenced by a target node; according to a preset node sorting strategy, sequentially positioning the operation requests corresponding to the traversed nodes to any server where the data indicated by the traversed nodes are located; and sequentially scheduling at least one job request represented by at leastone directed edge to the positioned server. For the scheduling method, the incidence relation graph is used for representing the incidence relation between the data and the corresponding relation between the operation requests and the data, and the data distribution information is used for representing the data distribution condition, so that cross-node data transmission can be reduced, the operation execution time of the whole operation request is shortened, and the calculation efficiency is improved, and the system performance is improved.

The invention provides a method and a system for performing ultra-wide band asynchronous positioning under nonideal conditions. The method and the system have the advantages that the distance between a target node unit and anchor node units is obtained by a step of measuring the distance between the target node unit and the anchor node units; then the target node unit is positioned; and by changing the repetition period of transmitted pulse, the anchor node units and the target node unit can be identified conveniently, the positioning complexity is reduced and efficiency is improved.

The invention provides a model evaluation method and system. The method comprises the following steps that: a data distribution node obtains a historical access record in real time to construct a model evaluation sample set; each sample is distributed to a plurality of first-level calculation nodes; the first-level calculation nodes extract metadata required for calculating a preset evaluation index from samples, and distributes the metadata to a plurality of second-level calculation nodes; the second-level calculation nodes carry out fragmentation clustering according to the metadata, and sends a fragmentation clustering value to a central calculation node; and the central calculation node collects and aggregates the fragmentation clustering value of each second-level calculation node toobtain an evaluation value. By use of the method, the problems in the prior art that offline evaluation can not monitor the online effect of the model can not be monitored in time, online problem positioning complexity is high, the model can not be evaluated in real time and evaluation accuracy is low can be solved, the model can be evaluated according to real-time data, evaluation accuracy is improved, and the positioning complexity of online problems is lowered.

The invention belongs to the technical field of communication, and particularly relates to an algorithm, system and device for eliminating unmanned aerial vehicle positioning NLOS, and a storage medium. The algorithm comprises the following steps: obtaining an initial position of an unmanned aerial vehicle, flight information and a measured value; identifying a value having a non-line of sight error in the measured value according to the initial position of the unmanned aerial vehicle and the flight information; and eliminating the non-line of sight error according to the measured value havingthe non-line of sight error to obtain an actual position. According to the algorithm provided by the embodiment of the invention, by obtaining the measured value having the non-line of sight error and eliminating the measured value having the non-line of sight error at first, the measured value can be processed more accurately, so that the positioning result is more accurate, and the method for eliminating the non-line of sight error used in the invention can greatly shorten the positioning time.

The embodiment of the invention discloses a Wi-Fi-based distance obtaining method and system, a server and electronic equipment, relates to the technical field of wireless communication, and can improve the distance obtaining precision and reduce human and material costs. The Wi-Fi-based distance obtaining method comprises the following steps that: the server obtains information of all Wi-Fi emission sources or / and information of a mobile base station and a pre-set time threshold value in a Unicom area; a distance obtaining request of a first terminal is received, wherein the distance obtaining request includes time information of the first terminal and the acquired information of the Wi-Fi emission sources or / and the acquired information of the mobile base station; the time information is in the effective range of the time threshold value; the server matches the information of the Wi-Fi emission sources or / and the information of the mobile base station acquired by the first terminal with the information of all the Wi-Fi emission sources or / and the information of the mobile base station in the Unicom area; and the terminal distance matched with the first terminal is obtained. The Wi-Fi-based distance obtaining method and system, the server and the electronic equipment disclosed by the invention are suitable for obtaining the terminal distance in a Wi-Fi-based signal field.

The invention discloses a height difference-based wireless positioning method and a terminal and belongs to the technical field of positioning. The method comprises the following steps of: receiving a positioning signal by the terminal, wherein the positioning signal carries a navigation message and is sent by a base station and the navigation message comprises positioning information, and the positioning information at least comprises the height information and air pressure value of the base station; and acquiring the navigation message carried in the positioning signal, and positioning according to the positioning information contained in the navigation message. According to the invention, the positioning signal carrying the navigation message and transmitted by the base station is received, the navigation message is acquired according to the positioning signal, and automatic positioning can be realized according to the positioning information in the navigation message, so that the computational burden of a server counter is reduced. In addition, compared with positioning through an orthogonal frequency division multiplexing (OFDM) modulation mode, the method provided by the embodiment of the invention can improve the positioning accuracy and reduce the positioning complexity.

The invention provides a back contact solar cell module production method and a back contact solar cell module, and relates to the technical field of solar photovoltaics. The back contact solar cell module production method comprises the steps of providing a conductive connection film, wherein the conductive connecting film comprises an adhesive layer and a wire group adhered to one side of the adhesive layer, the wire group comprises a plurality of wires which are arranged at intervals, and each wire comprises a wire body and a hot melting conducting layer located on the surface of the wire body; sequentially arranging the plurality of back contact solar cells in columns to obtain a back contact solar cell column; stacking the side, provided with the wire group, of the conductive connecting film on the back surface of the back contact solar cell sheet column to form a solar cell string precursor; and laminating the solar cell string precursor, a cover plate and a packaging film layer,so that the hot melting conductive layer is melted to be electrically connected with the wire body and an electrode of the back contact solar cell. According to the invention, the connection strengthof the wire group and the back contact solar cells is enhanced, and the positioning complexity is reduced.

The disclosure provides a locating method and device of a moving object and electronic equipment, and relates to the technical field of automatic driving processing. The locating method of the movingobject includes: in a moving process of the moving object, re-determining a coordinate system by a current location of the moving object at an interval of preset duration, and thus obtaining multiplelocal coordinate systems; obtaining segmentation locating information of the moving object in an i-th local coordinate system; calculating a coordinate conversion relationship between a j-th local coordinate system and a [j+1]-th local coordinate system, wherein i and j are both positive integers; and determining target locating information of the moving object in any local coordinate system according to the coordinate conversion relationship and the segmentation locating information. Compared with related technologies, the technical solution does not rely on high-precision maps or complex algorithms, and effectively reduces locating complexity. At the same time, a flexibility degree of a locating manner provided by the solution is comparatively high.

The invention relates to a fault reporting positioning method, electronic equipment and a computer readable storage medium. The method comprises the steps: enabling a client to detect whether a control selection operation exists in a page card in a currently browsed page or not, wherein the page card is divided into a plurality of areas in advance, and each area corresponds to an area block control; if a control selection operation is detected on any regional block control, generating fault reporting data based on the control position and the fault time of the regional block control; sending the fault reporting data to a server; enabling the server to receive the fault reporting data sent by the client; querying a log record of the regional block control matched with the control position and the fault time in the running log; and determining that the log record is a fault position where a fault occurs. According to the embodiment of the invention, the fault reporting mode is more accurate and quicker, for users, the fault reporting difficulty is lower, the operation is more facilitated, the fault position determination is more accurate, the fault reporting positioning complexity isreduced, the fault reporting positioning processing efficiency is improved, and the fault reporting positioning processing period is shortened.

The invention discloses a webpage watermark generation and authentication method capable of positioning and tampering positions on a browser. The method includes: partitioning webpage source codes combining character blocks displayed by the browser to enable sub-blocks to contain browser display characters; then extracting a non-label portion and an attribute value portion in a label of each sub-block to generate 12-bit watermark information, randomly embedding the watermark information into another sub-block by a color attribute method; comparing the consistency of an extracted watermark and a reconstructed watermark of each sub-block during detection so as to judge whether the sub-block is tampered or not; and finally detecting the label of the tempered sub-block, substituting the marking attribute for all attributes of the tempered sub-block, and substituting prompt information for the display characters in the sub-block on the browser. By the method, when partial content in a webpage is tempered, no-break of Web service can be maintained, information not tempered can be used continuously, error information can be prevented from spreading timely, and negative effect and loss of reputation and business of enterprises and public institutions due to webpage tempering are reduced.

The invention provides a method for WLAN indoor positioning Radio Map updating based on information entropy and relates to a WLAN indoor positioning method. The method solves the problem that an existing WLAN indoor positioning Radio Map updating method is poor in positioning accuracy, has complexity in positioning and is large in updating workload. AP signal strength RSS values measured in every reference point are stored in a Radio Map, APs with information entropy large are selected, mutual information entropy between every two APs is calculated; after the APs with information entropy large are selected, a Hidden Markov model is utilized to update the Radio Map at an off-line stage, a KNN algorithm is used to respectively compare positioning accuracy of the Radio Map at the off-line stage and the updated Radio Map with RSS vectors measured at an on-line stage, and the updated Radio Map is favorable for improving positioning accuracy compared with the Radio Map prior to updating. The method is suitable for WLAN indoor positioning.

The embodiment of the invention discloses an operating bed management system and method. The operating bed management system comprises a positioning device and a control module, the positioning device comprises a sensor arranged at a designated position to transmit and receive detection signals and a reflection label arranged on an operating bed base to reflect the detection signals, and the sensor can obtain induction signals reflected by the reflection label and send the induction signals to the control module; the control module judges whether the operating bed moves to a preset standard position corresponding to the sensor or not according to the sensing signal; according to the system, through the sensors and the reflection labels, whether each indoor operating bed moves to the preset standard position or not is accurately judged, the problems that the indoor operating bed is complex in positioning operation and inaccurate in positioning are solved, the positioning precision of the indoor operating bed is improved, and the positioning complexity of the operating bed is reduced.

The present invention discloses a method and device for locating interference sources, which relate to the technical field of wireless communication. The method includes: all cells transmit and receive subcarriers used to carry interference source detection sequences according to system reference subcarriers. Frequency offset compensation; each cell uses the local interference source detection sequence generated locally to perform correlation processing on the interference source detection sequence carried by the subcarrier it receives; the result of the correlation processing performed by each cell is correlation When , the cell that sends the interference source detection sequence is determined as the interference source. Through the embodiment of the present invention, when there is aliasing of multiple different bandwidths in the system, it is not necessary to traverse and detect various aliasing scenarios, and only need to detect related possible sequences in the aliasing bandwidth to complete the positioning of the interfering cell, which can Reduce positioning complexity and improve calculation speed.

The present invention provides a method and apparatus for detecting memory transferring abnormity in a multi-core system, the method comprises: recording a transferring track condition of the memory in the multi-core system; detecting the abnormal condition of the memory in transferring according to the track condition. The apparatus mainly comprises a transferring track recording module for recording transferring track condition of the memory in the multi-core system; a memory transferring abnormity detecting module for detecting the abnormal condition of the memory in transferring accordingto the track condition recorded in the transferring track recording module. According to the invention, the problems that the process for detecting the memory transferring abnormity is complicated, the detecting efficiency is low and the existing method is not suitable for detecting the memory transferring abnormity condition of combined path can be solved.

The disclosure provides a scheduling method, a scheduler, a storage medium and a system, belonging to the technical field of communication. The method includes: acquiring association relationship diagram and data distribution information, each node in the association relationship diagram refers to a piece of data, and each directed edge is used to represent the data referred to by the destination node calculated according to the data referred to by the source node Job request; according to the preset node sorting strategy, sequentially locate the job request corresponding to the traversed node to any server where the data pointed to by the traversed node is located; at least one of the nodes represented by at least one directed edge Job requests are dispatched to the located servers in turn. By using the association relationship diagram to represent the relationship between data and the corresponding relationship between job requests and data, and using data distribution information to represent data distribution, data transmission across nodes can be reduced, and the job execution time of the overall job request can be shortened. Improve computing efficiency and improve system performance.

The embodiment of the invention discloses a data processing method, electronic equipment and a computer program product. The method comprises the steps that an application program and identification information of a target interface in the application program are acquired; the application program is modified based on the identification information of the target interface, so that the modified application program collects program operation information when the target interface is called in the installation and operation process, and the collected program operation information is uploaded to a cloud server side; and releasing the modified application program. According to the technical scheme, the problem positioning accuracy can be improved when the application program executes abnormally or has behavior risks, and the problem positioning complexity is reduced.