Development of an Internet home automation system

This paper presents the design and implementation of an Internet home automation system that can monitor and control home appliances via the World Wide Web. The system consists of an embedded controller and a PC-based home Web server. The embedded controller is connected to the home Web server via RS232 serial port. The home appliances are connected to the input/output ports and the sensors are connected to the analog/digital converter channels of the embedded controller. The home automation Website residing on the home Web server is based on the combination of Java Server Pages and JavaBeans. Dynamic DNS service technology is taken to fix the dynamic IP address to a static domain name to allow the server to be more easily accessible and the password protection is used to block the unauthorized user from accessing to the server. The home appliances can be monitored and controlled locally via the embedded controller, or remotely by a web browser. The system is scalable and allows additional appliances and sensors to be added to it with little changes to its core.