Raspberry Pi based lap counter for amateur car racing
This article presents the design of a lap counter and timer that can be used in amateur car racing. Main functions of this computer to count laps, measure lap time, vehicle speed and accelerations. The system uses a GPS module, accelerometer and magnetometer sensors.
An implementation of time of arrivals location positioning technique for GSM networks
Positioning algorithms are of great importance in recent years, as the means of providing location based services (LBS) including wireless emergency services. Telecommunication engineers are frequently puzzled by the accuracy of the implemented technique in contrast with the cost. In this paper, we summarize the most known location techniques. Then we introduce a novel Time of Arrivals (TOA) location positioning method in GSM networks using three Base Stations (BSs). In order to determine the subscriber's position, the algorithm makes use of the Turin's [5] TOA positioning algorithm. The algorithm's accuracy is improved by introducing an additional weight coefficient reflecting the LOS/nLOS propagation. Finally, the cost function is simulated in a microcellular city centre environment and compared to Turin's.
Air Traffic Control Today and Tomorrow
Air Traffic Control is an all-embracing term and on occasion there is some doubt about its scope. For the present purpose it will be as defined within the internationally agreed principles set out in Annex 11 to the International Civil Aviation Convention. Here it is set out that the Air Traffic Control service is for:– (i) Expediting and maintaining an orderly flow of air traffic. (ii) Preventing collision between aircraft. (iii) Providing advice and information useful for the sake of efficient conduct of flights. (iv) Preventing collision on the manoeuvring area between aircraft and obstructions. (v) Notifying the appropriate organisations regarding aircraft in need of search and rescue and to assist such organisations as required.