摘要
本文设计的食堂售饭机,在实现消费金额手动输入功能的基础上,根据需求增加了定额消费功能。为不同用户的需要,提供矩阵式键盘和PS/2键盘以供选择。通过RC522对IC卡进行读写,消费记录安全存储在掉电保护的FLASH存储器上,便于用户后期查询和结账。本售饭机读卡速度快,误读率低,支持挂失卡消费报警,已成功应用于多个企事业单位的食堂消费场合,使用状态良好。
The selling-machine of canteen is designed by this paper. The consuming amount can be input not only manually but also automatically. In order to meet different kinds of customer＇s need, both matrix keyboard and PS2 keyboard are provided. IC card is read and written by RC522 chip. All the consuming records are saved on FLASH memory, which can be checked and settled. There are a lot of advantages on this machine such as quickly operating IC card, low misreading rate, automatically alarm on loss card and so on. This machine has been used in many canteens of enterprises and institutions, it works well.
出处
《自动化技术与应用》
2016年第9期149-152,共4页
Techniques of Automation and Applications
基金
2013年度西安工业大学校长基金项目(编号XAGDXJJ13 12)
陕西省自然科学基础研究计划(编号2014JM2-6093)
