Modern embedded system design philosophy is heavily dependent on simulation. Simulation provides a means to model an embedded system, perform experiments with the model, test, and evaluate the designs prior to committing to implementation, thus allowing design flaws to be detected and corrected early in the design process. As increasingly more complex embedded systems are being considered for design, their design and validation is proving a Herculean task. Innovative applications demand stringent requirements, necessitating improvements in technologies and system design methodologies. It is where simulation and modeling come in to picture. In this paper, planning for design for Modular Controller Discharge System (MCDS) – an embedded system using simulation is proposed which is a modernized toilet system for trains to avoid the spillage at undesired places or at railway platforms. Speed sensors help to dump the waste at a suitable distance from the railway station. Intermediate tank is used under the toilet seat and it is designed using simulation. A microcontroller or PLC is used to control the action of storage tank.

Embedded system microcontroller design process simulation retention tank