实现无线连接的物联网应用在电力预算有效的方式

　　实现无线连接的物联网应用在电力预算有效的方式

　　物联网的承诺，以提供显着的变化，我们管理和互动的方式与我们的家园和办公室。它还预测，以改变企业提供服务的方式，特别是在商业和工业部门，以前资本密集型设备可以作为一个服务出租给客户交付。虽然这个概念很容易理解，但考虑到这一点，组织的影响将在很大程度上取决于许多不同数据元素的持续和可靠的数据收集。这将是一个工作的无线连接微控制器为基础的传感器，许多电池操作和长期留在原地。供应这样的传感器数据将需要设计使用超低功耗无线收发器微控制器，不仅具有极低的功率待机电流，但也采用节能技术，延长工作寿命从一个单一的硬币电池。这种技术可以实现在硬件或软件或两者的混合物，但显然有一些其他更广泛的因素，设计师需要考虑之前，准备选择个别设备。

　　One of the key factors will be the wireless protocol selected. This will， in the main， be already determined by the amount of data to be transferred at a time. While Wi-Fi is a natural choice for moving large amounts of data， it is power hungry and for typical sensing applications it will be down to methods such as Bluetooth Smart and ZigBee along with other 802.15.4 sub-GHz techniques that will be the preferred choice. When selecting devices， engineers should also be aware of the various aspects that make up the overall power consumption profile of a device. There is a balance between computing performance and the power profile. You might use a more powerful device that offers more compute resources even though it might consume more power simply in order to complete the calculation and transfer tasks much quicker. Also， do not forget some communications stacks require the radio to operate longer for a given data packet so it is not just the standing consumption of the combined wireless MCU.