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Trains are one of the most common modes of transport in India. They provide employment to 1.54 million people according to the recent statistics [1]. The aim of this paper is to shed some light on the matter of waste management and disposal on trains. Ranjan et al. (2016) wrote in India Today, that Indian Railways generate around 10-15 tons of garbage on major stations every single day [2]. This number is not only appalling but also quite dangerous to the society and the environment. To contribute to the above issue and to ease the pain of hard working laborers in the Railway sector, automation is extremely important. Highly advanced countries like China and Japan have worked hard to bring about huge changes in their sanitation, waste management and quality in the past decade. Hence, this paper pivots around the function, application and implication of an Automatic Garbage Compressor which has been meticulously designed for a safe, modern and hygienic method of garbage disposal using Control Systems and Simulation. The Automatic Garbage Compressor consists of an electro-pneumatic compressor which functions automatically to compress the overflowing garbage in the dustbin (60cmx40cm) to its minimal size, repeatedly until it has to be disposed of. This allows a considerable delay in garbage disposal which makes it convenient for the workers. It is equipped with an emergency stop button and is essentially a fully automatic mechanism. The piston detects the level of garbage with the assistance of a shortrange reed switch. This, in turn, activates the piston which further compresses the garbage for about 30 seconds. The piston then returns to the initial position which makes space for more garbage intake. The material for the garbage can (Aluminum 6061) and the piston (Sheet Metal) was selected with its correlation to stress-yield range and considering engineering properties like stress analysis, the force exerted by piston, safety and other fabrication processes. Keywords— Control systems, Garbage Compressor, Electro pneumatics, Automatic Compression

DESIGN AND FABRICATION OF AN AUTOMATIC GARBAGE COMPRESSOR FOR INDIAN RAILWAYS: USING PRINCIPLES OF ELECTRO-PNEUMATIC AND CONTROL THEORY