Research Of Multifunctional Data Collection And Transmission Device Based On Embedded System

Cold chain logistics, which is mainly used in protecting the perishable food in transportation and storage, is a key part of China’s food safety system, having a great significance for the construction of sustainable society. This paper puts forward a design of remote monitoring system under the current research situation of cold chain logistics, and the research is based on data collection and transmission, designs and implements a multifunctional data collection and transmission device which combines with embedded system and wireless communication technologies.This paper raises a design of the entire frame work of remote monitoring system, sets the refrigerated temperature and humidity, and the position of the vehicle as the goal of real-time monitoring, using ZigBee and GPRS technology as the means of wireless communication, and finishes all the hardware and software designs including schematic circuit design, PCB design, welding and application program developing.This device mainly realizes the following functions:collection, analysis, storage and sending of data, receiving and executing of orders and SMS processing. Key information can also be displayed on the screen and people can control it conveniently by touching screen. The final test indicates that the collected data can match the precision request and the device is reliable for long time work.The whole designing process also fits the modular design concept, can be transferred and expanded easily, functions can be customized according to the applying field, and the hardware and software designing won’t take long. Although this paper is mainly focus on the application of cold chain logistics, the device can also be taken to other applications such as grain agriculture, tobacco storage and medical field.