设计说明书
总字数：13000+
摘要
随着城市公共交通的快速发展，公交车作为市民出行的重要工具，其报站的准确性和及时性直接影响着乘客的出行体验。不准确或延迟的报站信息可能导致乘客坐过站、错过换乘等问题，给乘客带来不便。因此，研发一种能精准、高效进行公交车报站的系统十分必要。
本设计提出了一种基于 STM32F103C8T6 单片机的公交车报站系统。系统主要功能包括：通过 GPS 模块获取当前的位置信息；借助 TTS 语音播报模块播报不同的站点信息；用户通过按键修改站台经纬度，确保站点定位准确；通过 OLED 显示屏显示当前站台及相关信息；利用两个 LED 分别代表上行和下行指示，方便乘客识别行驶方向；同时，系统通过 ECBO2 蓝牙模块将相关数据发送到手机端，便于管理人员进行监控和管理。
该公交车报站系统的作用在于，为公交车提供了一种精准、便捷的报站工具。通过实时的位置获取、准确的语音播报和清晰的信息显示，能够帮助乘客及时了解站点信息，提升出行体验，同时也便于管理人员对公交线路进行高效管理。
关键词：单片机；公交车报站；GPS 定位；TTS 语音播报；OLED 显示
Bus stop announcement based on microcontroller
Abstract
With the rapid development of urban public transportation, buses, as an important tool for citizens to travel, have a direct impact on the accuracy and timeliness of station announcements, which directly affects passengers’ travel experience. Inaccurate or delayed station announcement information may lead to issues such as passengers passing through stations or missing transfers, causing inconvenience to passengers. Therefore, it is necessary to develop a system that can accurately and efficiently announce bus stops.
This design proposes a bus stop announcement system based on STM32F103C8T6 microcontroller. The main functions of the system include: obtaining current location information through the GPS module; Using TTS voice broadcasting module to broadcast different site information; Users can modify the latitude and longitude of the station by pressing buttons to ensure accurate positioning of the station; Display the current platform and related information through OLED display screen; Using two LEDs to represent the up and down directions respectively, making it convenient for passengers to identify the direction of travel; At the same time, the system sends relevant data to the mobile phone through the ECBO2 Bluetooth module, making it easier for management personnel to monitor and manage.
The purpose of this bus stop announcement system is to provide a precise and convenient tool for buses to announce their stops. Through real-time location acquisition, accurate voice broadcasting, and clear information display, it can help passengers timely understand station information, improve travel experience, and also facilitate efficient management of bus routes by management personnel.
Keywords： microcontroller; Bus stop announcement; GPS positioning; TTS voice broadcast; OLED display
目 录
1 绪论
1.1 研究背景及意义
1.2 国内外研究现状
1.3 主要内容
2 系统总体方案设计
2.1系统总体设计
2.2 主要模块方案选择
3 系统硬件设计
3.1 总体硬件框架
3.2 主控模块电路设计
3.3 GPS 模块电路设计
3.4 TTS 语音播报模块电路设计
3.5 按键模块电路设计
3.6 OLED 显示模块电路设计
3.7 LED 指示模块电路设计
3.8 蓝牙模块电路设计
4 系统程序设计
4.1 编程软件介绍
4.2 主程序流程设计
4.3 独立按键
4.4 OLED显示流程设计
5 实物制作与功能测试
5.1 实物制作
5.2 GPS 定位与 OLED 显示功能测试
5.3 TTS 语音播报功能测试
5.4 按键修改与 LED 方向指示功能测试
5.5 蓝牙数据传输功能测试
6 总结
参考文献
致谢
附录A 原理图
附录B PCB
附录C 主程序
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