研制了基于單片機無線通信技術的應急交通控制系統。系統采用AT89C52 作為核心控制器，手持遙控端的AT89C52 單片機實現控制命令的判斷、編碼和經ZT-TR43S 無線數傳模塊發送；路口控制機執行預先設定的交通信號控制方案，當接收無線信號后轉入相應的
應急控制程序。本文介紹了系統的總體方案、部分硬件設計和軟件設計。
關鍵詞：交通信號；AT89C52；無線通信；智能控制
Abstract ： This paper developed traffic emergency control system based on wireless
communication technique. Single-chip microcontroller AT89C52 is core of the control system. In manual controlling equipment, the command which is judged and coded through AT89C52 will be transmitted by ZT-TR43S wireless transport module. The local controller usually performs the scheme which is preplanned. When receiving wireless signal, the local controller will perform the corresponding program. The total system, handware and software design is introduced in details.
Keywords: traffic signal；AT89C52；wireless transport；intelligent control