Design of handheld positioning tracker based on GPS/GSM

GPS positioning technology and GSM wireless communication technology have been widely used in the military field and urban transportation and other civilian areas. Aiming at the singularity of handheld positioner function on the market, this paper designs a combination device of handheld positioner and tracker. By extracting GPS navigation information frame parameters and GSM wireless data transmission. The realization of the tracker in the TFT LCD screen real-time display itself and the tracking side (i.e., the position of the relative position information) function, completed conversion from latitude and longitude coordinates to Cartesian coordinates. The device can be used for the loss of items, the elderly children tracking and geo-location data mapping, data accuracy, easy operation.