# Expert Opinions on the Intranet-Based Security System in Industrial Electrical Switchboards
## 1 Introduction
Another study [7] offered an alternative solution to control the electrical power through statistical assessment for identifying changes in consumption methodology (SAICC). The solution involved using collected databases to function the operating time of the electrical equipment in advance. However, the setting and extrapolation of operation time may face errors due to in-depth miscalculations. Additionally, studies by [8, 9] proposed another solution through a metropolitan-scale communication network to control involved electrical devices inside homes, in order to determine the workings and control of the devices. It functions automatically through an android application with the use of a long-range wide area network (LoRa) designed for connection support of low-power devices through the system of wide-area network (WAN). When compared with other solutions, the proposed solutions can be applied to the identification of operational statuses and control the devices accurately and automatically. Other than that, the study by [10] offered various methods to incorporate wireless technology such as the Zigbee protocol that can be connected wirelessly to control sensors for opening and closing doors. Further, they were applied to create a home automation system (HAS), which offers convenience and safety for the occupant of the house. Later, other studies [11, 12] applied similar automation systems to control devices within buildings remotely and introduced a way to improve the power efficiency in smart buildings. Such systems can analyze and generate paths to conserve power, through manual selection of possible solutions available. For example, room lighting, ventilation, heating, and air conditioning system can be controlled through the screen panel of an electronic control system. Additionally, numerous researchers, e.g., [13, 14, 15, 16, 17, 18] applied this technology to control power in a large number of smart homes. In addition, the authors of [14, 19] recommended a low-cost alternative to apply the technology, involving detection and monitoring power requirements and usage in households. Another study [20] also suggested a method to combine the technology of Zigbee protocol and the wireless fidelity (Wi-Fi) to overcome the limitations of software and hardware. It connects various devices through open source software, enabling control over selected devices to cooperate compatibly. The authors of [21] created a management system called the home energy management system (HEMS), through the use of open source software. HEMS connects electronic devices with other systems through an automated control system to achieve optimal power usage. Other aspects (e.g., thermal dissipation, electricity cost fluctuations throughout the day, and optimization of energy use in response to environmental variations) were taken into account. From the methods mentioned above, there are a large number of researchers proposing various solutions to effectively control electricity power management devices. However, those methods were unable to achieve accuracy and efficiency in controlling the devices under different environments. Therefore, this research presents a way to increase efficiency in energy management and interconnected electrical devices' operations, through power switchboards operating in different environments. Additionally, the facility workers' opinions toward the proposed system were examined. This research investigated how multi-devices functioned in the same environment with the addition of a thermal sensor installed into the box of switchboards. The sensor creates convenience in inspecting, detecting, checking, and monitoring the electrical statuses in a real-time operating system, which enables the system to achieve accuracy and efficiency in controlling the devices, thereby preventing damages in advance and reducing power loss. The system can also be controlled remotely; the thermal sensor system contains SoC that enables communication with the application through a central command device.