摘要:
The present invention relates to a terminal and a terminal location providing method. The terminal for selectively accessing a plurality of base stations supporting different communication systems includes a first network interface card that is turned on when the terminal is turned on, a second network interface card that is turned on or activated when receiving the terminal's location information request, a power controller for controlling power of the first and second network interface cards, and a processor for receiving the terminal's location information request and controlling the power of the first and second network interface cards through the power controller.
摘要:
Provided are a method for detecting a received signal and an apparatus for detecting a satellite navigation received signal using the same. The present invention provides cells where a correlation value obtained through parallel signal detection is a predetermined signal detection threshold value or more are selected and time domain correlation is performed on the cells so that the correlation value is verified. The cells having the predetermined verified threshold value or more are detected as a final received signal.
摘要:
An apparatus for determining a position of a terminal calculates distances between a terminal and a plurality of base stations by using time information acquired by a reference station among the plurality of base stations through unidirectional communication between the terminal and the base stations and between the base stations, and determines a position of the terminal by using the calculated distances.
摘要:
Provided is a fingerprint database generating method and device for wireless location. Signal strength is estimated by using access points on a numerical map, position coordinates of grid points, and a radio wave attenuation model so as to generate a fingerprint database. A simulation error is computed based on actual survey data measured in the real space, and the estimated signal strength is corrected by using the computed simulation error to thus generate a fingerprint database.
摘要:
Provided is a method for estimating a position of a mobile terminal in a wireless network. In the method according to the present invention, difference values between squared signal arrival times of base stations are used to estimate the position of the mobile terminal.
摘要:
An apparatus for providing driving information for a vehicle based on high speed movement long distance impulse radio-ultra wideband (IR-UWB) is provided. The apparatus includes an IR-UWB module configured to generate a packet based on high speed movement long distance IR-UWB, transmit the generated packet, and interpret a received packet and a controller operationally coupled to the IR-UWB module. The controller is configured for the step of estimating a distance between an own vehicle and a different vehicle, estimating a relative location of the own vehicle with respect to the different vehicle based on the distance and generating driving information including the distance and the relative location.
摘要:
A position estimation server estimates the position of a target mobile node by using position information of a minimum number of anchor nodes knowing their position, distance information estimated between mobile nodes or between the anchor nodes and the mobile nodes, and connectivity information.