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1261 results about "Latitude" patented technology

In geography, latitude is a geographic coordinate that specifies the north–south position of a point on the Earth's surface. Latitude is an angle (defined below) which ranges from 0° at the Equator to 90° (North or South) at the poles. Lines of constant latitude, or parallels, run east–west as circles parallel to the equator. Latitude is used together with longitude to specify the precise location of features on the surface of the Earth. On its own, the term latitude should be taken to be the geodetic latitude as defined below. Briefly, geodetic latitude at a point is the angle formed by the vector perpendicular (or normal) to the ellipsoidal surface from that point, and the equatorial plane. Also defined are six auxiliary latitudes which are used in special applications.

Method for judging and positioning pseudo base station based on reported information of terminal

A method for judging and positioning a pseudo base station based on reported information of a terminal includes the steps that after receiving a message, the terminal judges whether the message is a spam message or not according to key words and a mobile phone number; if yes, a message or voice service is triggered immediately; if network connection fails, the position is judged to be a suspected covering area of the pseudo base station; the longitude and latitude of the position are recorded through a GPS chip of the terminal, when network coverage recovers, the covering position of the suspected pseudo base station is uploaded to a base station; if the terminal supports a route test function, the updating time of the position area, retention and reselection parameters and area codes are stored at the same time, so that a network monitoring server accurately discriminates and draws the covering area of the suspected pseudo base station according to a great deal of information such as the longitude and latitude of the covering position of the suspected pseudo base station, wherein the information is reported by the base station and comes from the terminal or a route test terminal, and then the position where the pseudo base station is located is judged rapidly and accurately. The method is easy and convenient to operate, high in efficiency and good in accuracy and does not increase interfaces and signaling loads of the base station or a core network, and it is necessary to modify hardware configuration of the terminal and an existing communication protocol.
Owner:CHINA ACADEMY OF INFORMATION & COMM +1

A fast handover method of a td-lte communication system based on target cell pre-carrying

Aiming at the requirements of frequent cell handover, short handover time and high handover success rate in high-speed railway TD-LTE communication system, a fast handover method of TD-LTE communication system based on target cell pre-carrying is proposed. According to the train's running position, speed and direction, after the network planning is completed, a list of neighboring cells is generated in advance, and the switching position of each switching zone is preset, that is, the longitude and latitude position information. Before the train enters the overlapping area of ​​switching between two cells , when the distance from entering the handover zone is a certain value L, the source base station eNodeB determines and sends the pre-bearer information to the target base station eNodeB according to the measurement report of the user terminal UE, and the target base station eNodeB performs the evolution packet system ( Evolved Packet System (EPS) resources to bear the load, when the train enters the handover zone, if the train meets the handover criteria, the train will be handed over from the source cell to the target cell. Therefore, this method reduces the handover delay and is beneficial to improve the handover success rate. The method can dynamically adjust the switching method according to the mobile speed of the UE, solve the problem of fast switching in a high-speed mobile environment, reduce the number of communication drops, improve the success rate of switching, enhance the service quality of high-speed broadband mobile services, and promote high-speed railway trains. The development of domestic multimedia broadband mobile Internet services meets the growing needs of passengers for mobile communication services.
Owner:BEIJING UNIV OF POSTS & TELECOMM

Method for rapidly detecting and positioning illegal base station intrusion

The invention provides a method for rapidly detecting and positioning illegal base station intrusion. According to the method, basic network parameters such as LAC, CI and field intensity, acquired by a common user handset and user business behaviors are utilized to determine whether parameter change and the business behaviors are in accordance with various pre-set early warning characteristic conditions, summation of weights in accordance with the characteristic conditions is carried out, whether the present situation belongs to early warning of illegal base station intrusion is determined according to the total weight; when existence of the early warning is determined, a GPS switch of a user is in an open state, present GPS latitude and longitude information of a position of the user is recorded, first-level early warning information is transmitted to a remote central processing unit; report information of multiple terminals are classified by the central processing unit according to LAC codes before attack, secondary integrated alarm analysis on one type of early warning information is carried out to determine whether pre-set alarm characteristic conditions are satisfied, summation of weights in accordance with the alarm characteristic conditions is carried out, whether the present situation belongs to illegal base station intrusion alarm is determined according to the total weight, after existence of the alarm is determined, an illegal base station position during the present illegal base station intrusion is calculated, and real-time alarm is carried out.
Owner:BEIJING UNION UNIVERSITY

Resident trip information obtaining method based on intelligent mobile phone

The invention relates to a resident trip information obtaining method based on an intelligent mobile phone. The method comprises the following steps: (1), a mobile phone client detecting whether a GPS and a Network are opened; (2), the mobile phone client uploading user registration information and home / work place coordinate information to a web server; (3), the web server receiving the registration information and the coordinate information; (4), the mobile phone client acquiring tracing point latitude and longitude information and time information of a user in accordance with specific time intervals and uploading the information to a local place; (5), the mobile phone client automatically uploading the tracing point information stored in the local place at user specific time or uploading the information when the user clicks a hand-operated transmission button; (6), the web server receiving tracing point data and storing the data in a traveler locus table in a database; and (7), the web server determining an algorithm according to information compiled in advance, and through combination with POI information, analyzing to obtain a trip chain of a resident. Compared to the prior art, the method provided by the invention has the advantages of wide application scope, low cost, simple process, high information accuracy and the like.
Owner:TONGJI UNIV

Mobile registration using a service area identifier or plurality of service area identifiers

A method of registering a mobile device in a mobile telecommunications network comprises the device's receiving power from a power source and transmitting a registration request signal including mobile device identification data, an associated mobile network determining a set of latitude and longitude location coordinates for the transmitting mobile device, comparing the determined set of latitude and longitude location coordinates with a table for matching the location coordinates with a service area code, determining a service area code responsive to the comparison, and storing the service area code, the mobile device identification data, the determined service area code and a location area code of the associated public mobile network for registering the mobile device in the associated mobile network. A related mobile device comprises a power source, a processor for determining whether power has been actuated, a global positioning system for determining a set of latitude and longitude location coordinates for the transmitting mobile device, the processor for comparing the determined set of latitude and longitude location coordinates with a table for matching the location coordinates with a service area code, determining a service area code responsive to the comparison and storing the service area code in memory of the mobile device.
Owner:CINGULAR WIRELESS II LLC

Multidimensional model based oil and gas resource data key system implementation method and system

The invention discloses a multidimensional model based oil and gas resource data key system implementation method and system. According to the multidimensional model based oil and gas resource data key system implementation system, sorting, cleaning, classification and systematization are performed on source data of oil and gas resources, cleaning, transformation and integration are performed based on an ETL (Extract-Transform-Load) framework, the source data are loaded into a data warehouse or a market to form a core database, and the data processing efficiency is improved and data mining is performed through establishment of a multidimensional model. According to the multidimensional model based oil and gas resource data key system implementation method, different latitudes of the data can be flexibly combined, the custom analysis on core data such as the oil price, the yield, reserves, the quantity of the resources, import and export and the mining right is achieved, integrated management and visual display of statements, graphics, texts and maps are supported, interfaces and function modules of the system are based on a configuration scheme, and accordingly the configuration is flexible, the extension can be performed, the use is easy, the display form of the data is enriched, and the retrieval efficiency is improved.
Owner:CHINA UNIV OF GEOSCIENCES (BEIJING)
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