如何将传感器接入物联网

　　如何将传感器接入物联网

　　传感器是高度连接的“物联网”网络的一个关键元素，越来越多地被用于“智能城市”和“智能电网”设计。最新传感器的数字接口，从温度传感器从模拟设备和压力传感器，从测量专业到湿度传感器，从GE传感，正在简化接口的物联网，以提高系统的可靠性和功能性。

　　物联网始于测量。能够从世界各地的设备上获取数据，通过互联网连接到“大数据”信息系统，为控制和优化提供了基础。这是世界智能城市和智能电网发展的核心所在。

　　在某些情况下连接传感器到物联网是相对简单的，而在其他情况下需要更多的考虑。CMOS工艺和封装技术的改进使集成度更高，这样传感器就可以为微控制器提供可接受的协议。然后将数据分组为物联网，采用IPv6协议直接连接。临时措施分组数据用于本地网络，然后使用本地网关将数据包的头到IPv6广泛接入互联网。

　　The connection from the microcontroller can be handled in a number of ways， from wired Ethernet to power-line links over the existing power cabling. However， the most common approach is to use a wireless transceiver connected to the microcontroller to provide a link back to a central hub and then onto the Internet. While this has been a common approach to date， the emphasis of the Internet of Things is to have more direct access to the sensor node. This allows sensors to be added to a network more easily， rather than be limited by the address space of a hub device. The different architectures have an impact on the choice of the microcontroller. Simple 8-bit devices can be used for direct links to a wired network to a hub， but for handling higher-level protocols such as Ethernet or IPv6， 32-bit processor cores able to handle a protocol stack are required. These are increasingly common and are now adding general-purpose analog-to-digital converters （ADCs）， which can be used to simplify the design of the sensor node.