Wireless IoT Sensing Devices M2M I/O Modules Overview Introduction TheInternetofThings(IoT)isanewparadigmgainingwideglobalattentionfromacademia, industry, and government. The fundamental concept is a network of physical objects, devices, vehicles, buildings etc—denoted as things, embedded with electronics such as sensors, actuators, machine-to-machine (M2M) devices, and wireless sensor networks (WSN) that communicate and share data. Machine To Machine (M2M) Technology Machine To Machine (M2M) technology is now sufficiently mature that large numbers of companies are confident enough in its potential to launch their own projects that include innovation in services and products. The use of M2M technology is particularly well-suited to interaction with a large number of remote, and possibly mobile, devices, usually acting as the interface with an end-user. Advantech's IoT-ready Product Development Framework Wireless Sensor Networks The IoT is composed of four layers, an application layer, service layer, network layer and device layer. The application layer is the real application system, the service layer is now defined as cloud computing and the network layer is the wired/wireless network infrastructure. The device layer connects everything to the internet and is the key infrastructure of the IoT. One of the most important technologies is the Wireless Sensor Network, which is the wireless I/O and sensor solution/interface to collect and transmit analog/digital signals to the internet. The WSN is composed of two major parts; the wireless technology is based on IEEE 802.15.4 and the I/O technology. With different types of I/Os and sensors, signals can be measured in every situation. For instance, bridges can be measured through strain gauges, and buildings can be measured for energy usage. WSN is the next generation of wireless data acquisition solution. Chapter 14 Table of Contents Table of Contents