Monitoring device
A wireless monitoring device, comprising: a housing ( 10 ) in which is contained a wireless communication circuit for sending and receiving wireless signals; first and second flexible band portions ( 12, 14 ) connected at respective first ends to opposing edges of said housing; at least one antenna coupled to said wireless communication circuit; a connection device ( 16 ) for connecting second ends of said first and second band portions ( 12, 14 ) together to form a flexible band configured to attach the device to a user; at least one magnet ( 22 ) positioned in said first band portion ( 12 ); and a magnetic field sensor positioned in said second band portion, wherein said magnetic field sensor ( 20 ) is arranged to detect said at least one magnet ( 22 ) when said band portions ( 12, 14 ) are connected together.
1. A wireless monitoring device, comprising a housing in which is contained a wireless communication circuit for sending and receiving wireless signals; a flexible band configured to attach the device to a user; and an antenna coupled to said wireless communication circuit; wherein said wireless communication circuit is configured to: normally operate in a low-power hibernation mode and, periodically and/or in response to a manual location request signal received from a remote location, operate in an active mode in which it searches for a location data source, wirelessly transmits location data to a remote location if a location data source is identified, and wirelessly transmits an alert signal to a remote location if a location data source is not found, before returning to said low-power hibernation mode.
2. The device according to claim 1 , wherein said antenna is positioned in said flexible band and connected to said wireless communications circuit.
3. The device according to claim 1 , wherein in said low-power hibernation mode, said wireless communication circuit and said antenna are substantially inoperative, and operative only to receive a manual location request signal.