One of the key points in engineering application is to extend the working life by reducing energy consump-tion of wireless posture sensor nodes. Buffer sampling was designed in our study to prolong the sleep period of sensornodes,thus saving energy significantly. A wake-up radio receiver was applied to realize indirect listening to reducethe energy consumption in continuous listening,which was a solution to the problem of the loss of energy consumptionin idle listening.An ultra-low power wireless sensor nod...