MONITORING APPARATUS
First Claim
1. An apparatus for monitoring a wearer of a breathing apparatus, comprising:
- a pressure detecting device comprising;
a pressure transducer arranged to detect a pressure of a gas supply of the breathing apparatus; and
a wireless transmitter 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; and
a mobile monitoring unit arranged to be attached to the wearer comprising;
a motion sensor arranged to monitor the motion of the wearer;
an alarm; and
a wireless receiver arranged to receive signals wirelessly transmitted by the wireless transmitter of the pressure detecting device;
wherein the mobile monitoring unit has a plurality of operational states including;
an ON state in which the alarm is activated when the motion sensor has not detected motion for a predetermined period of time; and
an OFF state; and
wherein the mobile monitoring unit is arranged to be switched from the OFF state to the ON state when the wireless receiver receives at least one ON signal from the wireless transmitter.
1 Assignment
0 Petitions
Accused Products
Abstract
There is provided an apparatus for monitoring a wearer of a breathing apparatus, comprising a pressure detecting device and a mobile monitoring unit. The pressure detecting device comprises a pressure transducer arranged to detect a pressure of a gas supply of the breathing apparatus; and a wireless transmitter 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 arranged to monitor the motion of the wearer; an alarm; and a wireless receiver arranged to receive signals wirelessly transmitted by the wireless transmitter of the pressure detecting device.
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Citations
14 Claims
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1. An apparatus for monitoring a wearer of a breathing apparatus, comprising:
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a pressure detecting device comprising; a pressure transducer arranged to detect a pressure of a gas supply of the breathing apparatus; and a wireless transmitter 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; and a mobile monitoring unit arranged to be attached to the wearer comprising; a motion sensor arranged to monitor the motion of the wearer; an alarm; and a wireless receiver arranged to receive signals wirelessly transmitted by the wireless transmitter of the pressure detecting device; wherein the mobile monitoring unit has a plurality of operational states including; an ON state in which the alarm is activated when the motion sensor has not detected motion for a predetermined period of time; and an OFF state; and wherein the mobile monitoring unit is arranged to be switched from the OFF state to the ON state when the wireless receiver receives at least one ON signal from the wireless transmitter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13)
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12. An apparatus for monitoring a wearer of breathing apparatus, comprising:
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a pressure detecting device comprising; a pressure transducer arranged to detect a pressure of a gas supply of the breathing apparatus; and a wireless transmitter arranged to wirelessly transmit a preset number of discrete and spaced apart ON signals when it is determined that the pressure of the gas supply has exceeded a predetermined on threshold; and a mobile monitoring unit arranged to be attached to the wearer comprising; a motion sensor arranged to monitor the motion of the wearer; an alarm; and a wireless receiver arranged to receive signals wirelessly transmitted by the wireless transmitter of the pressure detecting device; wherein the mobile monitoring unit has a plurality of operational states including; an ON state in which the alarm is activated when the motion sensor has not detected motion for a predetermined period of time; and an OFF state; wherein the mobile monitoring unit is arranged to be switched from the OFF state to the ON state when the wireless receiver receives at least one ON signal from the wireless transmitter; and wherein the wireless receiver periodically listens for a signal transmitted by the wireless transmitter; wherein the time period between periodic listening times of the wireless receiver and the time period between signals transmitted from the transmitter are configured such that in use the wireless receiver receives at least one signal transmitted from the wireless transmitter; and wherein the pressure detecting device is arranged for uni-directional wireless communication with the mobile monitoring unit.
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14. A breathing apparatus for use by a wearer in hazardous environments, comprising:
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a supply of breathable gas; a pressure detecting device comprising; a pressure transducer arranged to detect a pressure of the gas supply; and a wireless transmitter; wherein the wireless transmitter is 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; wherein the wireless transmitter is arranged to wirelessly transmit a preset number of OFF signals if it is determined that the pressure of the gas supply has fallen below a predetermined off threshold; and a mobile monitoring unit comprising; a motion sensor; an alarm; and a wireless receiver arranged to receive signals wirelessly transmitted by the wireless transmitter of the pressure detecting device; wherein the mobile monitoring unit has a plurality of operational states including; an ON state in which the alarm is activated when the motion sensor has not detected motion for a predetermined period of time; and an OFF state; wherein the mobile monitoring unit is arranged to be switched from the OFF state to the ON state when the wireless receiver receives at least one ON signal from the wireless transmitter; and wherein when the wireless receiver has received at least one OFF signal, the mobile monitoring unit can be manually switched from the ON state to the OFF state.
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Specification