Ultrasonic range finder usually has some problems such as it is susceptible to temperature and ranging issues such as small angle range.With the environmental temperature compensation and steering angle wide angle adjustment ranging ultrasonic ranging programs and CC1 1 00 wireless communications and voice broad-cast functions,we find the improved ultrasonic range finder is better,with higher accuracy and a wider angle measurements.%针对超声波测距仪易受温度影响和测距角度范围小等问题，提出了环境温度补偿和舵机调整测距角的宽角度超声波测距方案，增加了CC1100无线通信和语音播报等功能，使得超声波测距仪功能更加完善，测量精度更高，测量角度更宽。
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