Abstract: The system of defending to rob by tailing behind of double gate by the Chip Microcomputer control "introduce the principle and the design of the double gate gate-ban system of defending to rob by tailing behind fitting small bank and the cash counter which is the important and financial place systematically. This system takes the chip microcomputer as control core, and uses the TM card as identify the card key to open the door. The whole system is simple, and takes a small room. This system not only expenses few in investment, but can availably overcome the weakness of the single door of the small bank that usually use it to guard against rob, and raises the financial places safety consumedly.

Key words: Chip Microcomputer control, Defend to rob by tailing behind, Gate-Ban System

摘要： “单片机控制的双门防尾随门禁系统”系统地介绍了适合小型银行储蓄所、现金柜台等重要金融场所防尾随抢劫双门门禁系统的原理与设计。这个系统以单片机作为控制核心，使用TM卡作为开门的识别卡钥匙，使得整个系统小巧，占地方很少。此项目投资费用虽然很少，但却可以有效地克服小型银行储蓄使用的单层防范门的缺点，大大提高金融场所的安全性。

关键词: 单片机控制, 防尾随抢劫, 门禁系统