Newborn babies stolen in the hospital is a "troubling ailment", which brings both material and spiritual dual loss to the hospital and the family, and causes adverse social influence. Constructing an economical, effective and practical smart protection system can avoid to the same problems occur in hospital. A smart protection infants system in the hospital is designed using RFID ( Radio Frequency Identification) , access control facilities and the modern computer network. As to body safety consideration, the reader of the scheme is put forward using Cryptag Census RFID products that run in the low frequency, and the data transmission system based on combination of the TCP/IP protocol Internet network and 485 bus is proposed for improving the system's real-time performance and stability. Finally the protection infants from abduction system mainly with RFID instead of traditional system makes the hospital security greatly improved, reduces the manpower, and improves the management efficiency of the hospital.%新生婴儿在医院被盗是一个困扰医院的"顽疾",给医院、家庭带来物质和精神的双重损失,同时也造成不良的社会影响.构建经济、高效实用的防盗系统,从技术上可以避免医院今后类似问题的发生.应用无线射频技术(RFID),结合门禁控制设施,利用现代计算机网络,设计一种医院婴儿智能防盗系统.基于人体安全考虑,提出使用Cryptag Census系列低频感应射频识别产品进行防盗系统中读卡器的设计;同时提出TCP/IP协议Internet网络和RS485总线相结合的数据传输体系,提高系统的实时性和稳定性.最终实现以RFID技术为主的防盗系统代替传统的人防系统,使得防盗安全系数大大提高,减少了人力,提高了医院的管理效率.
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