| 摘要 |
FIELD: radio engineering, communication.SUBSTANCE: environment sensor data are received in a first processor, wherein the environment sensor data are not data based on a satellite positioning system. Then, in the first processor, based on the received environment sensor data, it is determined whether a second processor should be awoken from sleep mode, and the second processor is instructed to wake up if it has to be awoken from sleep mode. Awakening the second processor is carried out if environment sensor data exceed a predetermined threshold.EFFECT: reducing power consumption, operating the processor only during periods when the processor is needed, thereby avoiding low efficiency during such idle periods.40 cl, 8 dwg |
