Alarm signal generating and transmitting method for e.g. deep flying satellite, involves generating alarm signal, on detecting system failure, using error message and navigation satellites signals, and transmitting alarm signal to station

摘要

The method involves instantly generating an alarm signal, when a serious system failure e.g. failure of sensor, on board a satellite (9) is detected by a communication unit (1) provided on the satellite. The alarm signal is generated using error message of a computer and using signals from navigation satellites (7, 8). The alarm signal is transmitted to a receiving station (11) by a Galileo satellite (6), where the receiving station receives the alarm signal. The alarm signal is forwarded to a satellite control center that is responsible for operation of the satellite. An independent claim is also included for a device for generation and transmission of an alarm signal on board of a satellite.