| 摘要 |
There is provided an apparatus for monitoring a wearer of breathing apparatus, comprising a pressure detecting device 10 and a mobile monitoring unit 40. The pressure detecting device comprises a pressure transducer 12 arranged to detect a pressure of a gas supply of the breathing apparatus; and a wireless transmitter 14 arranged to wirelessly transmit a preset number of ON signals when it is determined that the pressure of the gas supply has exceeded a predetermined on threshold. The mobile monitoring unit is arranged to be attached to the wearer and comprises a motion sensor 42 arranged to monitor the motion of the wearer; an alarm 44, 46; and a wireless receiver 50 arranged to receive signals wirelessly transmitted by the wireless transmitter of the pressure detecting device. The mobile monitoring unit 40 has a plurality of operational states including: an ON state in which the alarm 44, 46 is activated when the motion sensor 42 has not detected motion for a predetermined period of time; and an OFF state. The mobile monitoring unit 40 is arranged to be switched from the OFF state to the ON state when the wireless receiver 50 receives at least one ON signal from the wireless transmitter 14. |
