Patent ID: 7242318
Filing Date: 2007-07-10
Classification: A61B,G01D,G16H,H04L,H04W,Y10S

Abstract:
1. A data receiver station for use with a data acquisition and transfer device, the data acquisition and transfer device having first and second sensors each responsive to a change of a predetermined nature and a transmitter for transmitting over a mobile phone network data concerning an occurrence of each change to the data receiver station, wherein the data receiver station comprises: a transmitter configured to send a first polling signal over the mobile phone network to the data acquisition and transfer device requesting data associated with a change detected by the first sensor, and a second polling signal over the mobile phone network to the data acquisition and transfer device requesting data associated with a change detected by the second sensor; a receiver configured to receive the data associated with the first and second sensors over the mobile phone network; and a controller configured to determine a time for sending the second polling signal depending upon a content of the first data and to control the transmitter to send the second polling signal at the determined time.