generally speaking, the intelligent lighting control system can be divided into three parts, namely, an input system, an output system and a logic system. The input system includes sensors and panels, while the output system includes lamps, switch modules and dimming modules. The materialized entity of the logic system is equivalent to a gateway, which is mainly used to receive signals from the input system and control the output system to do corresponding actions after processing. The specific contents include lighting logic, sensor logic and time logic.

these three parts of the traditional intelligent lighting system are strongly related to each other, and the loss or damage of one part will affect the normal work of other systems. As a decentralized network, EMN network can easily avoid these problems. The logic control of EMN network is realized locally, and the distributed logic storage architecture is adopted. If a single node fails, only the logic failure of the failed part will not affect the global network.