基于无线传输的车载温湿度测量系统设计

Design of Vehicle Temperature and Humidity Measuring System Based on Wireless Transmission

摘要:

为了克服传统温湿度静态点测量的局限性大、灵活性差的问题,设计了一种基于无线传输的车载温湿度测量系统;用户通过计算机来无线遥控小车,可以进行人体无法进入或带有危险性质场所的温湿度测量;使用了DHT11数字式温湿度传感器进行温湿度的测量,并利用NRF905收发模块实现了数据的无线传输;上位机采用Labview图形化开发工具,控制面板上可以进行温湿度历史数据的查询,以曲线、数字、量程三种不同的形式显示实时温湿度数据,当温湿度超过预警值时能够报警,同时能实时显示小车运动轨迹;整个系统人机界面简洁,系统工作稳定,适应性强。

Abstract:

In order to overcome the limitation of the traditional temperature and humidity measurement and the problem of flexibility, a vehicle temperature and humidity measurement system based on wireless transmission is designed.The user is able to use the computer to control the car remotely by wireless commands, which can measure the temperature and humidity in some place where people can not enter or in hazardous conditions. The DHT11 digital temperature and humidity sensor is used to measure the temperature and humidity, and the wireless transmission of data is realized by using the NRF905 transceiver module. PC uses Labview graphical development tools to write programs, the user can check the temperature and humidity history data in the control panel, and which displays real-time temperature and humidity data in three different forms, curve, digital and range, when the temperature and humidity exceeds the warning value, the utility model can alarm, and the track of the car can be displayed in real time. The man-machine interface of the whole system is simple, the system is stable, and the adaptability is strong.