针对现代应用需要,研究了超声波二维定位技术,提出了以NXP LPC1768为主控平台的超声波精确定位方案,并给出了硬件、软件设计及核心程序。这种定位技术数据处理难度低、定位精度高,适用于低成本自动控制系统。 In order to meet the needs of modern applications, the ultrasonic two-dimensional positioning technology is studied. The ultrasonic positioning scheme based on NXP LPC1768 is proposed. The hardware and software design and the core program are also given. This positioning technology data processing low difficulty, high positioning accuracy, suitable for low-cost automatic control system.