Abstract: Disclosed are a system and a method for monitoring a relative position of a moving object. The system essentially includes at least one positioning and transmitting device and a signal receiving and processing device, each equipped with a radio frequency identification (RFID) signal transceiver. The RFID signal transceiver of the signal receiving and processing device receives radio signals transmitted by the RFID signal transceiver of each of the positioning and transmitting devices, thus enabling the signal receiving and processing device to track one or more moving objects each carrying one such positioning and transmitting device and determine the position or positions of the one or more moving objects relative to the signal receiving and processing device.