基于FM的低压电力线门禁系统设计  

Design of low voltage power-line access control system based on FM

作　　者：丁漩[1,2] 肖东海[3] 仲元昌[3] 周田[3] 

机构地区：[1]重庆邮电大学法学院,重庆400065 [2]重庆大学机械工程学院,重庆400044 [3]重庆大学通信工程学院,重庆400044

出　　处：《信息化纵横》2009年第16期34-37,共4页

摘　　要：介绍了一种基于FM的低压电力线门禁系统实现方法,在分析并建立FM数学模型的基础上,设计了FM调频发射机与FM调频接收机。该系统可以解决目前专线门禁系统和无线门禁系统的不足,进一步推进了门禁系统的实用性。实际应用结果证明,该门禁系统成本低、灵活、可靠。This paper presents an implementation method of low-voltage power line access control system based on FM. In the analysis and setting up FM mathematical model, designs FM transmitter and FM receiver. In the communication protocol support, MCU controls signal generation and decodes of the received signal. The system can resolve the current shortcomings of special communication line and wireless access control system, further advance the usefulness of the access control system. The practical application of the results show that the access control system are low cost, flexible and reliable.

关 键 词：门禁 低压电力线 直接调频 双音多频 

分 类 号：TP237[自动化与计算机技术—检测技术与自动化装置]