基于单片机的超声波测距系统的设计摘 要: 这是一种可应用于倒车雷达的超声波测距系统。本系统采纳单片机为核心, 结合发射和接受模块构成整个的测距系统。倒车雷达是用来探测车身和周围的障碍物并显示其距离, 以帮助驾驶员安全倒车或泊车的辅助电子设备, 在纵多的汽车中逐渐普及应用, 而且较多的应用了本系统设计采纳的无源探头。采纳无源探头能够降低整个系统的设计成本, 为能够更广泛的应用超声波测距系统打了坚实的基础。因此, 本系统的设计具有广泛的运用价值和意义。关键字: 超声波测距; 倒车雷达; 运用价值 Abstract: This is a reversing radar can be used in ultrasonic ranging system. The system uses a single-chip microcomputer as the core, Combination of transmitting and receiving modules constitute the entire ranging system. Reversing radar is used to detect obstacles in and around the body and displays its distance, in order to help driver safety reversing or parking and ancillary electronic equipment, in many longitudinal vehicle gradually wider application, and more applications of the system design Passive probe used. Passive probe can reduce overall design cost, in order to be able to the wider use of ultrasonic ranging system playing a solid foundation. Therefore, the design of the system has a broad application of the value and significance. Keyword: Ultrasonic Ranging; reversing radar; use Value目 录引言 ·····················································4一、 超声波测距系统主要功能的概述························4二、 超声波测距系统的主要技术指标····················4三、 超声波测距系统的原理 ·····························4四、 超声波测距系统的硬件组成·························5五、 超声波测距系统的软件设计·························9六、 超 声 波 测 距 系 统 的 测 试 ...
