信息紐扣iButtonTM 構建的微網絡是一種主從式網絡，它使用接地的單一數據線進行通
信，成本低廉、構造簡單且從設備無需自備電源，可廣泛應用在多點數據采集的場合。本文介紹了iButtonTM 以及其構建的微網絡，并在此基礎上，給出了一多點數據采集系統的設計實例——自動鑰匙管理系統的設計要點。

關鍵詞：iButtonTM；微網絡；一線驅動器；可定位地址開關

The Application of iButtonTM MicroLAN in Automatic Key Management System BAI Yan , ZENG Guangyu (PLA Institute of Information Engineering, Information Engineering University, zhengzhou,china 450002)
【Abstract】 The MicroLAN is a master-slave network using a single data line plus ground reference for digital communication. It provides digital information at very low cost iButtonTM and simple structure. It can be used in the system needed multi-point data collecting. This paper introduces iButtonTM and MicroLAN, and then gives the design of an instance of multi-point data collecting——automatic key management system.
Keyword： iButtonTM; MicroLAN; 1-Wire driver; Addressable switch