多角度障碍物检测系统.docx

PAGE 17 摘要 随着社会的发展，车辆自身体积及车辆数值均越来越大，如此带来的后果是驾驶员对车辆四周的距离感知变弱，由此可能造成经常性的刮擦事故的发生，因此利用现代技术手段对汽车周围障碍物进行检测非常有必要。 为了对多个方向的距离进行测定，本文设计了一套可用于多角度测距的方案。本套设计方案采用STM32系列单片机作为系统的主控芯片，搭配超声波测距传感器、蜂鸣器、语音播报模块以及其它外围I/O设备，通过方案论证，最终确定本文设计方案。 在对设计出的硬件进行测试时，通过从各个方向模拟不同的距离可对语音播报模块设置不同的语音，其语音可自定义，更加扩宽了本设计的使用场景，并且在距离过近时启动蜂鸣器报警。最终测试结果表明，本文所设计的多角度障碍物检测系统符合设计要求。 关键词：多角度；障碍物检测；超声测距模块；语音播报  Abstract With the development of society, the size of the vehicle itself and the value of the vehicle are getting larger and larger. The consequence of this is that the driver’s perception of the distance around the vehicle becomes weaker, which may cause frequent scratching accidents. Therefore, use Modern technology is necessary to detect obstacles around the car. In order to measure the distance in multiple directions, this paper designs a set of programs that can be used for multi-angle ranging. This design plan adopts STM32 series single-chip microcomputer as the main control chip of the system, with ultrasonic ranging sensor, buzzer, voice broadcast module and other peripheral I/O devices. Through the demonstration of the plan, the design plan of this article is finally determined. When testing the designed hardware, different voices can be set for the voice broadcast module by simulating different distances from various directions. The voice can be customized, which further expands the use scenarios of the design, and when the distance is too close Start the buzzer to alarm. The final test results show that the multi-angle obstacle detection system designed in this paper meets the design requirements. Keywords: multi-angle; obstacle detection; ultrasonic ranging module; voice broadcast  目 录 TOC \o 1-3 \h \z \u 摘要 I Abstract II 1 绪论 1 1.1 论文研究的背景及意义 1 1.2 国内外研究现状 1 1.3 本文主要研究内容及论文结构安排 1 2 系统方案论证 3 2.1 系统设计方案 3 2.2 主控模块选型 3 2.3 测距传感器模块选项 4 2.4 语音播报模块 6 2.5 设计语言选择 6 3 硬件电路的设计 7 3.1 单片机 7 3.1.1 单片机的应用 7 3.1.2 单片机最小系统 8 3.1.3 系统时钟电路 8 3.1.4 系统复位电路 9