Wireless detection of cooked food decay

This paper presents a novel idea for detecting the Food Spoilage using low cost liquid sensors and acidity sensors and then transmitting the data through wireless communication. For the processing and transmitting of the data we use several components like the thin metal rods, thin cellophane sheets or starch sheets, Liquid sensors, IC CA3140 with its bias circuit and a symbol frequency transmitter and receiver with an interactive display unit. The main fact that makes this a novel idea is that the entire circuitry can be implemented at a very low cost and can be made available for commercial manufacturing by attaching the circuit to the containers used in the refrigerators in large catering and food processing industries. There are several other advantages in the proposed system, that a better interactive display can be added to the receiver so as to increase the user interaction and interface in the proposed system in a better manner.