Design of College Canteen Ordering System Based on Cortex-A9 and Android

In this paper, given the problems of manual pricing errors, low ordering efficiency, and lack of data analysis capabilities in the traditional college canteen ordering method, a Cortex-A9 and Android-based college canteen ordering and pricing statistics system is designed. The system uses the Cortex-A9 microprocessor that builds the Android operating system as the host, the circuit board that builds the STM32 minimum system and the additional rocker button as the trigger, the ZigBee wireless network as the internal communication, the Android terminal as the client, and the cloud server as the data transmission and storage tool. The system realizes two ordering modes: local trigger ordering at the buttery hatch and mobile application ordering on the Internet, which can perform statistical analysis on the catering data.