Self-locating remote monitoring systems

(57) A summary system (750) is equipped with a surveillance base station (754) and a remote unit (752), and a remote unit, The navigation receiver (756) which gives the position (759) of a remote unit, and the transmitter (758) for communicating to a base station (754) for a display (772) of the above-mentioned position (759) are included. A remote unit (752) contains the sensor (760) which supervises a remote position. When a sensor state (761) changes, a state and a position are transmitted to a base station (754), and this base station includes the alarm (776) and the display (772) which answer change of a state. Various enforcement forms form the system for victims of a fall from a ship, the fence system which is not visible, and a weather observation system.