基于超声波的测距方案设计

Design of Ultrasonic- based Scheme of Distance Detection

设计是在超声波传感器基础上，实现自行检测、自动判断、自动短信通知的功能。设计中通过超声波进行距离检测并给出信号，由单片机对采集信号进行整理，针对采集结果对手机模块工作状态进行调整，采集信号小于标准信号，手机模块工作，若大于标准信号，则手机模块处于等待状态。经验证，在无人操控下，项目完成预期功能。本次设计实现的自动检测及自动短信功能，可用于多方面使用：安防、自动刹车、自动避障等。

The design, based on the ultrasonic sensor, has the following functions ： self - testing, automatic judgment, automatic SMS notification, etc. In the design, Ultrasonic is applied to detect the distance and send out signals, and then these signals are collected and sorted by SCM. According to the results, the working state of the mobile phone modules is adjusted. If the signal acquisition is less than the standard requirements, the phone modules work ; otherwise, they are in a waiting state. Having been verified, the project without any operation worked smoothly as expected. The functions of automatic detection and SMS in the design can be applied in many aspects, such as security, automatic braking, automatic obstacle avoidance, etc.