Small, Embedded Web Server for Home Appliances with Embedded MPU and Real-time Operating System

This paper describes a small, power saving, and embeddable web server for home appliances. The proposed device has an embedded MPU and a real-time operating system to actualize small size and power-saving for consumer use. First, a T-Engine, embedded 32-bit RISC MPU was used as the hardware of the proposed system. Next, a real-time operating system designed for embedded use, T-Kernel / Standard Extension, was selected. Thirdly, a TCP/IP protocol stack and applications were developed. The prototype has 1/40 or less of the electrical power consumption of a general PC server and the software resources are approximately 1.6 MB. Finally, in order to verify the prototype system, performance tests using a general web service and a remote manipulation function via the Internet were conducted. As a result, the display of text and dynamic picture images, and remote manipulation of the server from another terminal inside the network were verified with poise.