Improvements to short-range wireless networks

摘要

A wireless sensor network of devices including a sensor and a coordinator:
the sensor comprising sensing means operable to detect values of a parameter; transmission and reception means for wireless communication with other devices in the network; and sensor control means operable to control a sleep pattern of the sensor; and
the coordinator comprising transmission and reception means for wireless communication with other devices in the network; wherein
the sensor transmission means is operable to transmit value information as to the parameter values and the coordinator transmission means is operable to transmit an indication of a suitable sensor sleep pattern taking into account the value information.