83 results about "Geographical distance" patented technology

A wireless device and method for providing location updates to a wireless network includes determining a current location of the wireless device, comparing the current location to a second location and transmitting a location update, including presence information, to the wireless network when the current location differs from the second location by at least a predetermined geographical distance. The predetermined geographical distance is determined in accordance with at least one of subscription information associated with the subscriber unit, including a subscription fee paid, an enabled service and a network state. The current location may be determined via GPS, wireless network based position determination or other method.

A system and method for dynamic zoning are provided. Travel demand data is received for a network which includes a set of points. The travel demand data includes values representing demand from each point to each of other point. Destination-distance values are computed which reflect the similarity between points in a respective pair, based on the travel demand data. For each pair of the points, a geo-distance value is generated which reflects the distance between locations of the points in the pair. An aggregated affinity matrix is formed by aggregating the computed geo-distance values and destination-distance values. The aggregated affinity matrix is used by a clustering algorithm to assign each of the points in the set to a respective one of a set of clusters. A representation of the clusters can be generated in which each of a set of zones encompasses the points assigned to its respective cluster.

The invention relates to a vehicular network RSU (Roadside Unit) deploy method and a data forwarding method thereof. The vehicular network RSU deploy method comprises the following steps: adjacent RSUs are put in respective wireless transmission ranges and can forward data packets directly, and a plurality of RSUs are arranged along the road to form a 'backbone link' for providing connectivity for two positions with farther geographical distance; further, multiple 'backbone links' are utilized to connect all 'hotspot' areas to form a 'backbone network', and the RSUs add self identifiers and geographical positions in a beacon message to broadcast and send periodically; vehicle nodes receiving the information of the RSUs spread the information by using a probability flooding method; and when forwarding the data packets, the vehicle nodes check whether the information of the RSUs is received firstly, if not, the vehicle node with nearest distance to a destination node is selected as a next-hop relay for forwarding, and if so, whether the RSUs are utilized to assist forwarding of the data packets is determined according to the minimum distance principle. The vehicle network RSU deploy method and the data forwarding method thereof disclosed by the invention have the advantages that the connectivity of the whole network is remarkably improved, and the performance of remote data distribution is enhanced.

A storage resource operation managing method in a storage network arranged by a node for transmitting an access request via a network to a storage and by a plurality of storage groups which receive the access request so as to execute a content of the access request includes the following steps, a logical distance defined from the node to the storage resource is acquired, alternatively, geographical distances among the respective storage resources are acquired, alternatively, in such a case that both the logical distance and the geographical distance are acquired, requests with respect to the respective distances are acquired, and a storage resource is selected, an acquired requirement range is entered into a selection factor so as to select a desirable storage resource.

The invention discloses a method for acquiring neighborhood information. The method comprises the steps as follows: a terminal transmits a service request to a position-neighborhood server, wherein the service request carries the PLMN identification, frequency point and cell identification of the current residence system of the terminal, and current geographical location information of the terminal; the terminal receives the neighborhood information returned by the position-neighborhood server, wherein the neighborhood information is the information of neighborhoods within a preset geographical distance from the terminal, the position-neighborhood server screens the corresponding relationships of the geographical location information, PLMN identifications, frequency points and cell identifications maintained by the position-neighborhood server according to the current geographical location information of the terminal to obtain the neighborhood information, and the neighborhood information comprises the PLMN identifications, frequency points and cell identifications of the neighborhoods. The invention further discloses a method for providing neighborhood information, a corresponding terminal and a corresponding server. By applying the technical scheme disclosed by the application, the terminal can be supported to independently select one of all possible communication modes under current network coverage. Thus, the terminal can independently select other networks for communication when a coverage dead zone or a fault occurs to the network.

In a method of simplifying simulation of a wireless communication network, the network may be divided into one or more neighborhoods. A neighborhood may be represented by a given cell to be evaluated and possibly one or more neighbor cells of the given cell. A desired simulation of one or more of the neighborhoods may be implemented in order to evaluate network performance. The neighborhood may be determined as a function of reverse link interference information, path loss information, or on a geographic distance between cells.

A system and method for precisely locating a mobile device at a precise geographical distance and messaging to communication devices carried by persons in specific areas is disclosed. The method utilizes at least two elements, a mobile device and at least one location tag. When activated, the mobile device will interact with all of the location tags in range and determine the location tag most practically near. The mobile device will then download detailed local information from the location tag most practically near. The messaging system may be used to selectively send messages to communication devices known to be within range of location transmitters or tags in a predetermined area.

The invention provides a method for obtaining distribution of wind resources capable of power generation. The method mainly comprises the following steps: step S10, obtaining historical wind speed data of previous six hours of each wind measuring tower; step S20, at each full hour time point, according to wind speed data correlation of the previous six hours, performing clustering on the wind measuring towers; step S30, assuming that there are n wind measuring towers at a wind power base, calculating a geographical distance Ri between a to-be-calculated point and all the wind measuring towers Ti(i=1,2, ..., N); step S40, finding a smallest wind measuring tower Ti(i=1,2, ..., N) of the Ri; step S50, according to calculation results in the step S20 and the step S40, determining other wind measuring towers in a group which a wind measuring tower Ti belongs to; and step S60, carrying out interpolation on selected wind measuring towers by use of an inverse distance weighting method to obtain wind speed and wind direction estimation values of known points.

The invention discloses an LBS based riding appointment and cyclist recommendation method and system for riding enthusiasts. The method comprises the following steps: based on a road book route uploaded by a user during each travel riding, obtaining user travel demand information; analyzing the road book route uploaded by the user, computing geographical distances of road book routes uploaded by different users, and finding out users meeting a condition that the distances between starting points and stop points are all within a set threshold; according to computing results, generating a list of users with similar travel routes for each user; recommending the users in the list after sorting to users searching for riding companions; and recommending other cyclists leaving place record information near the users for the users by utilizing geographical position information of the users. According to the recommendation method and system, personalized recommendation of a riding app is realized, the practicality of recommendation is enhanced, user experience is improved, and the benefit of retaining old users and attracting new users is brought for software.

In a method of providing real time difference determination for a mobile terminal in a telecommunication system, comprising a plurality of eNodeBs in communication with a core network, each eNodeB having a plurality of associated cells, each cell potentially servicing one or more mobile terminals, determining S1O a first timing advance value representative of a first geographical distance measure between the mobile terminal and a first serving eNodeB prior to a handover to a second serving eNode B, determining S20 a second timing advance value representative of a second geographical distance measure between the mobile terminal and the second eNodeB after the handover. Subsequently, determining S30 a time of arrival measure between the mobile terminal and at least two eNodeBs, and signaling S40 representations of the determined first and second geographical distance measures and the determined time of arrival measures for said mobile terminal to at least said second eNodeB, together with a respective unique identification parameter of the at least two eNodeBs, wherein determination of real time differences is enabled based on at least the signaled representations.

The present disclosure provides a group positioning method; the method includes: acquiring position information corresponding to positioned user identifiers in a group, to obtain a position information set; and determining a group central position according to the position information set, the number of geographical distance values that are less than or equal to a preset distance threshold among geographical distance values between the group central position and geographical positions represented by position information in the position information set being maximized. With the group positioning method provided by the present disclosure, the number of group members carrying out activities in a circular area that uses the group central position as the center and the preset distance threshold as the radius is maximized.

The invention discloses a positioning method for abnormal events, relates to the field of mobile communication, and is used for providing precise position information for abnormal events. The method provided by the invention comprises the following steps of: when a service flow has abnormal release, recording abnormal event information, and reporting the abnormal event information to a data analysis processing unit when a reporting condition is satisfied; by the data analysis processing unit, determining position of each abnormal event information in a RSCP (Received Signal Code Power) and EcIo two-dimensional coordinate system according to the RSCP and EcIo two-dimensional coordinate system and RSCP and EcIo values respectively recorded by each abnormal event information; calculating geographical distance between every two coordinate points in a single quadrant according to A-GPS information of each coordinate point, and taking a region formed by all the coordinate points from which the distance to the same coordinate point is smaller than a preset threshold as an occurrence region of the same type of abnormal events. The positioning method and the positioning system for abnormal events are suitable for being used in an issue positioning scene.

The invention provides a moving target activity range recording method based on a local grid. According to the local grid, any longitude and latitude point serves as a grid starting point, the longitude line where the point is located serves as a grid center line, grid lines with the equal geographic distance are expanded towards the two sides, grid lines with the equal geographic distance are expanded in the latitude increasing direction of the starting point, a geographic space is divided into a plurality of grid units with the equal geographic distance, and a boundary is constructed to determine a grid code. Based on the subdivided grid area, the grid unit code and time information passed by the moving target are recorded in real time. According to the method, the geographic space is subdivided based on the equal geographic distance, and the longitude lines are considered as the grid center lines. The geographic distance of each grid unit can be defined, and the data storage capacity of the moving target activity range can be effectively reduced by combining a dynamic coding method and a mode of representing vector points by grid data, so that the activity range of the moving target can be visually displayed and quickly queried.

Methods are described for operating a social network server wherein the server receives a plurality of annotations. Candidate tags are determined from the annotations by removing commonly occurring words. Tag probabilities are determined based on social distance between an annotation contributor and an owner of the image, geographical distance between an annotation contributor and capture location of the image, and the size and position of an annotation contributor.

A system and method for efficiently and intelligently matching student enrollment records is disclosed. The method may be used, for example, to track student progress from secondary to postsecondary institutions and generate statistics about aggregate college enrollment rates to inform policy decisions. In exemplary embodiments, the matching algorithm accounts for common variations in student names and geographical distances between secondary institutions and the student's current known address to generate higher confidence matches.

The present disclosure relates to a feedback method, apparatus, and storage medium, in which a geographical distance between a data receiving end and a data transmitting end is determined to exceed aquality of service (QoS) communication distance; and sending out the out-of-range feedback information, wherein the out-of-range feedback information is used for representing that the geographic distance between the data receiving end and the data sending end exceeds the QoS communication distance. And detecting the out-of-range feedback information, and determining whether to retransmit the dataaccording to the detection result of the out-of-range feedback information. By the method and the device, the fact that the geographic distance between the data receiving end and the data sending endexceeds the QoS communication distance can be determined, the probability of occurrence of the phenomenon that data are retransmitted under the condition that the data are not required to be retransmitted can be reduced, and resource waste is avoided.

The invention provides a map model construction method based on coordinate transformation. The map model construction method comprises the steps of selecting an arbitrary coordinate point A and an arbitrary coordinate point B from a map, obtaining pixel coordinates of the arbitrary coordinate point A and the coordinate point B, and measuring the longitudes and latitudes of the coordinate point A and the coordinate point B by adopting a field instrument; calculating an included angle a1 between a connecting line of the coordinate point A and the coordinate point B and the north, and a geographic distance s1 between the coordinate point A and the coordinate point B; calculating an included angle a2 between a connecting line of the coordinate point A and the coordinate point B and a Y axis, and a pixel distance s2 between the coordinate point A and the coordinate point B; calculating a deflection angle a3 of the Y axis and the north of the current map; calculating a measuring scale C of the current map; according to the measuring scale C of the current map, the included angle a1 between the connecting line of the coordinate point A and the coordinate point B and the north, the included angle a2 between the connecting line of the coordinate point A and the coordinate point B and the Y axis, carrying out modeling by combining the aerial photography real scene of an unmanned aerial vehicle, and thus obtaining a map model based on coordinate transformation. The invention also provides a map model construction system based on coordinate transformation.

The invention proposes an imperialism-competition-based algorithm for solving the problem of workshop worker dispatching. The algorithm comprises the steps that an improved imperialist algorithm is used to optimize dispatching of job and machines; the imperial data and the like of the optimal result of the algorithm are used as parameters to solve the dispatching problem of workers and machines; and the parameters of the machine processing capacity, the geographical distance between machines and workers and the like are combined to establish a new imperialism competition algorithm model to solve the dispatching problem of workers and machines. According to the invention, workers are directly defined as an empire, and machines are defined as a colony; uncertainties caused by a randomly produced initial solution are avoided; the algorithm running time is reduced; and the distance between machines and workers to describe the relative force of imperialist countries, which is simple and convenient.