The remote control system using the Internet is very useful for the area where it is difficult to approach due to the limitation of time, space and location. The previous conventional remote control equipments have a difficulty in applying to the LAN environment, especially Ethernet environment transmission scheme. because they use asynchronous communication like RS232/422A/485. Therefore such equipments need interconnecting device between the asynchronous method and CSMA/CD.
In this paper, a remote monitoring and controlling system accessible in the Internet is designed and implemented.
The developed system consists of monitoring system that operates under the Windows operating system and microprocessor system(80C196KC) mounting Ethernet NIC compatible with NE2000. The protocol used in this system is UDP/IP. A set of experiments is carried out to verify the effectiveness of the developed system.