Wake-up apparatus and wake-up method for low power sensor node

摘要

Provided are a wake-up apparatus and wake-up method for a low power sensor node, and more particularly, to a wake-up apparatus and wake-up method for a low power sensor node, which can extend the battery life of the sensor node and minimize the amount of power consumed by an entire sensor network power by minimizing unnecessary power consumption of the sensor node. The wake-up apparatus for a low power sensor node includes: a wake-up signal detector receiving and detecting a wake-up signal of a sensor node; a wake-up radio frequency (RF) circuit unit filtering and amplifying the wake-up signal; and a wake-up baseband transducer detecting a wake-up address from the wake-up signal and comparing and verifying the wake-up address with a wake-up address that is provided from a server managing the sensor node. The wake-up apparatus outputs an interrupt signal for transmitting a sensing event of the sensor node or outputs a wake-up address of another sensor node in an area where the interrupt signal is to be sensed if errors are not detected when the wake-up address is verified.

主权项

1. A wake-up apparatus for a low power sensor node, the apparatus comprising:
a wake-up signal detector receiving and detecting a wake-up signal of a sensor node; a wake-up radio frequency (RF) circuit unit filtering and amplifying the wake-up signal; and a wake-up baseband transducer detecting a wake-up address from the wake-up signal and comparing and verifying the wake-up address with a wake-up address that is provided from a server managing the sensor node, and outputting an interrupt signal for transmitting a sensing event of the sensor node or outputting a wake-up address of another sensor node in an area where the interrupt signal is to be sensed if errors are not detected when the wake-up address is verified, wherein the wake-up signal comprises: a start packet region indicating the received signal is a wake-up signal; and a wake-up address information region comprising a mode information region storing a wake-up mode method of the sensor node and a region storing a wake-up address of the sensor node, wherein start packet region information, indicating that the received signal is a wake-up signal, is output as a reversed value of 0 or 1 and has an output form of one of 2 bits, 8 bits, and 16 bits.