为避免由于路面积水过深而造成的汽车驻车被淹事故，本文设计了一种汽车涉水远程智能报警装置，阐述了系统硬件和软件的整体设计方案、单元电路设计以及整体电路连接。该系统以低功耗AT89C52型单片机为处理器，通过光电式液位传感器监测水位高度，以SIM900A模块作为通信模块实现远程智能报警功能。当汽车驻车时，装置可以远程向车主发送报警信息。该装置整体结构简单、体积小、易于布置，适合在不同车型上推广应用。%To prevent wading accidents due to driving through deep water on roads,the paper develops a remote intelligent alarm device against vehicle wading based on the SIM900A module. The paper introduces the integral project of hardware and software,the design of unit circuits and the circuit connection of devices,respectively. The system uses the low-power microcontroller AT89C52 as the processor and applies photoelectric liquid level sensors to monitor the water level. The remote intelligent alarm function can be realized by using the SIM900A as the communication module. When a car is parking in heavy rain,the device can remotely send the alarm information to the owner to transfer the car timely,which can effectively reduce unnecessary economic losses. The device is simple in structure,small in size,easy to deploy,and can be widely used in different models.
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