A system for tracking the position of persons or items in facilities having a plurality of rooms for receiving a plurality of persons or items, such as ships, building or offshore platforms, said system comprising: - a fire detection system comprising: - a plurality of fire detection sensors arranged in said rooms, each fire detection sensor being configured to generate an alarm signal (Sal), - at least one fire data processing unit (22, 23) in signal communication with said plurality of fire detection sensors and able to receive the alarm signals (Sal) generated by the fire detection sensors, - a plurality of RFID tags, each RFID tag being able to be associated with a respective person or item, intended to move in said rooms, - a plurality of RFID readers arranged in said rooms, each RFID reader being arranged at a respective fire detection sensor and being configured to detect an RFID tag and to generate a position signal (Sp) representative of the detected RFID tag and the position of said RFID tag, - at least one position data processing unit in signal communication with said plurality of RFID readers and able to receive the position signals (Sp) generated by said RFID readers, - at least one bipolar line extending in said plurality of rooms, said at least one bipolar line being configured to: - establish signal communication between said plurality of fire detection sensors and said at least one fire data processing unit, - establish signal communication between said plurality of RFID readers and said at least one position data processing unit, - supply power to said plurality of fire detection sensors and said plurality of RFID readers, - each RFID reader being configured to generate a wake-up signal (Swake) able to activate an RFID tag in a preset area around said RFID reader, said preset area corresponding to the lobe of the wake-up signal (Swake) generated by the RFID reader; - each RFID tag being associated with an identification code, characterised in that - said wake-up signal (Swake) comprises data (PosR) representative of the position of the RFID reader that generated said wake-up signal (Swake), - upon receiving a wake-up signal (Swake) by an RFID reader, each RFID tag is configured to generate a tag signal (Stag), which comprises data representative of its own identification code and the data (PosR) representative of the position of the RFID reader which generated said wake-up signal (Swake). - a fire detection system comprising: - a plurality of fire detection sensors arranged in said rooms, each fire detection sensor being configured to generate an alarm signal (Sal), - at least one fire data processing unit (22, 23) in signal communication with said plurality of fire detection sensors and able to receive the alarm signals (Sal) generated by the fire detection sensors, - a plurality of fire detection sensors arranged in said rooms, each fire detection sensor being configured to generate an alarm signal (Sal), - at least one fire data processing unit (22, 23) in signal communication with said plurality of fire detection sensors and able to receive the alarm signals (Sal) generated by the fire detection sensors, - a plurality of RFID tags, each RFID tag being able to be associated with a respective person or item, intended to move in said rooms, - a plurality of RFID readers arranged in said rooms, each RFID reader being arranged at a respective fire detection sensor and being configured to detect an RFID tag and to generate a position signal (Sp) representative of the detected RFID tag and the position of said RFID tag, - at least one position data processing unit in signal communication with said plurality of RFID readers and able to receive the position signals (Sp) generated by said RFID readers, - at least one bipolar line extending in said plurality of rooms, said at least one bipolar line being configured to: - establish signal communication between said plurality of fire detection sensors and said at least one fire data processing unit, - establish signal communication between said plurality of RFID readers and said at least one position data processing unit, - supply power to said plurality of fire detection sensors and said plurality of RFID readers, - establish signal communication between said plurality of fire detection sensors and said at least one fire data processing unit, - establish signal communication between said plurality of RFID readers and said at least one position data processing unit, - supply power to said plurality of fire detection sensors and said plurality of RFID readers, - each RFID reader being configured to generate a wake-up signal (Swake) able to activate an RFID tag in a preset area around said RFID reader, said preset area corresponding to the lobe of the wake-up signal (Swake) generated by the RFID reader; - each RFID tag being associated with an identification code, - said wake-up signal (Swake) comprises data (PosR) representative of the position of the RFID reader that generated said wake-up signal (Swake), - upon receiving a wake-up signal (Swake) by an RFID reader, each RFID tag is configured to generate a tag signal (Stag), which comprises data representative of its own identification code and the data (PosR) representative of the position of the RFID reader which generated said wake-up signal (Swake).