The Application of Wireless Communication in IOT for Saving Electrical Energy Energy consumption is a huge problem in Iraq, especially in government institutions. Many devices continue operating even after working hours. In this case study, by using IOT technology, we shall show it to be more efficient if we can control the main devices that are consuming a large amount of power. xc2xa0Internet of things (IOT), therefore, is an exciting solution for managing energy consumption in Iraqi government buildings.  The proposed system has been designed to wake up the devices to start operating at 7:00 AM. 7:00 AM is the standard start of the working day in Iraq. In our proposed system, the case study has been taken based on the universities and institutions. In the universities and institutions, the working day ends at 8:00 PM. This is when our proposed system is designed to power off the main devices. In addition, after 8:00 PM and before 7:00 AM, if there is any device still in operation, the system will send a notification to the manager of the institution.  Our proposed system has been designed using Arduino mega as a main controller. Also, the module SIM800L GSM has been used to make the communication for notification cases, and the Relay 8 CH has been used as electronic switches for the devices.

Design and Implementation of Energy Saving Monitoring and Management System on Campus Based on Internet of Things Technology Campus energy consumption has many kinds with large total amount, which leads to great energysaving potential. With the rapid development of Internet of Things (IoT) technology and sensor technology, it is possible to achieve largescale campus energy management. Taking the energy saving monitoring and management platform of Shandong University at Weihai as an example, this paper designs and realizes an energy management system based on IoT. Using distributed acquisition and centralized management technology, an IoT system is established by installing data acquisition terminals in the whole campus, which can transmit realtime data through network and realize data collection, data storage, data organization, data analysis, and data publishing in real time. This paper introduces the architecture design of the platform and its software implementation, describes the key technical segments in detail, and displays some functions of the system. The establishment of the platform improved the efficiency of campus energy use, which provides technical means for upgrading the modernization level of campus energy management.