The design of active RFID for food quality and safety sensors

Nowadays the sensor market demands for new technology that can send the information of the food spoilage without physical intervention for long distances. In this case, RFID with sensors plays an important role in indicating and reporting the freshness and other conditions of the food product. Regularly food containers are dispatched through ships. At the point, when the contents in the container decay or spoiled, this can't be known by the sender. This will lead to loss in the product and subsequently declined by the end user. This circumstance might be counteracted if sensor data is accessible. The decaying organic product are ceased and replacement can be propelled in a flash. In order to avoid this circumstance a reliable, cost effective active RFID is required to overcome these issues. This paper describes the block diagram and the RFID communication protocol and its advantages over WSN in power consumption.