中文摘要：

随着计算机技术的飞速发展，芯片价格日益降低，可靠性稳步提升，用智能技术为人们的生产和生活提供便利成为一种迫切的需求。超声波测距作为一种便捷的无线测距手段，有效避免了测距人员与危险环境的接触，可以很好地满足无线测距的现实需求。这里设计一种可以实时测量的便捷式测距系统，该系统可对障碍物实时测量，具有操作简单，可靠性高的特点。

英文摘要：

With the rapid development of computer technology,it leads to chip prices reduction increasingly and reliability promotion steadily. It′s an urgent demand to provide convenience for people′s life and industrial production by using intelligent technology services. As a convenient wireless range?finding means,ultrasonic range?finding avoids the range?finding staff′s con?tact with dangerous environment effectively,and can better realize the demand of wireless range?finding. A portable range?finding system which can measure in real?time was design. The system can measure barrier in real?time,and has the advantages of simple operation and high reliability.