关键字：双MCU 无线传输 双色LED点阵 优化设计
ABSTRACT
This design take the monolithic integrated circuit as a core, uses main from the double MCU structure, takes the direct acting by the bi-color LED photo tube arrow and about the corner instructed, instructed by the LED nixietube as the countdown, takes the pedestrian general instruction by the bi-color LED lattice, realizes the special purpose vehicle examination by the digital coding wireless mode of transmission, has completed topic request all functions. Based on this, we additionally built the high resolution (320×240) large screen LCD real time display system each condition, simultaneously show date and time; Additionally built the pedestrian to pass through also matches by the image animation and the warm voice prompt; Additionally built has been possible to establish the branch separately according to the traffic congestion situation and the inferior yang or male principle general time, and carried on the optimization design to the system mechanism, the integrity has been good, user-friendly was strong, the reliability was high.
Key words: Double MCU Wireless transmission Bi-color LED lattice Optimization design 目 录
摘要 2
引 言 5
第1章 方案设计与论证 6
1.1 总体方案设计与比较 6
第2章 系统硬件设计 8
2.1 总体设计 8
2.2 各功能模块硬件设计及实现 9
2.2.1 交通灯四种通行模式及行车方向指示 9
2.2.2 行人通行指示及其实现 11
2.2.3 特种车检测及其实现 13
2.2.4 键盘与状态显示及其实现 13
2.2.5 语音提示及其实现 15
2.2.6 主次干道单独时间设置功能 16
2.2.7 紧急情况处理功能及其实现 16
2.2.8 倒计时计数功能及其实现 16
2.2.9 日历及时间显示功能及其实现 16
第3章 系统软件设计 17
3.1 软件总体流程图 17
3.2 软件主要子程序流程 18
3.2.1 紧急状态子程序 18
3.2.2 设置状态子程序 18
3.2.3 键盘模块程序流程 19
第4章 系统调试与测试结果分析 20
4.1 系统操作说明 20
4.2 调试 20
4.3 指标测试 21
4.3.1 测试仪器 21
4.3.2 各模块测试 22
第5章 设计总结 23
第6章 参考文献 24
