根據停車場智能化管理的需要提出了系統設計思想。系統硬件設備由入口設備、出口設備和發卡設備組成，論述了它們的硬件電路設計和軟件設計，并重點討論了IC 卡讀寫的硬、軟件設計。
關鍵詞：非接觸IC 卡；ZLG500；自動收費停車；AT89C55

Design and Development of Automatic Timing and Charging System Based on
Untouched IC Card in Parking Lots LI Hong-jia, WEI Quan-li, XU Xiao-xiao, GUO Si-wen (College of Information and Scientific Technology, Qingdao University of Science and Technology, Qingdao 266042, China) Abstract: The designing idea of the system is put forward according to demand in intelligentized management in parking lots. The whole system is composed of entrance-machine, exit-machine and card-sender and their hardware circuits and software designing are discussed. The IC card reader which is the central part of the system hardware is introduced in detail.
Key words: untouched IC card; ZLG500; automatic charging for parking; AT89C55