摘要
有了合适的协议以后(如ZigBee),无需经常与外界交流的传感器就不会消耗过多能量。有时,一节碱性电池就可以为它们提供长达十年的能量。
With a suitable protocol,such as Zigbee,sen- sors that don't have a lot to say or hear needn't consume much energy to keep in touch. Sometimes,an alkaline cell can provide all the power they need for as long as a decade.
