汽车多功能行车护航仪通过为驾驶人提供汽车电池电压检测、水平和坡度检测、电子罗盘、温度测量等功能,起到保护驾驶人安全,保证正常行车的作用。介绍一种通过使用倾斜传感器、磁阻传感器、温度传感器等芯片实现精确测量相关数据,有效保障行车安全的设计方案。 Car multi-purpose driving escort instrument to provide drivers with battery voltage detection, level and slope detection, electronic compass, temperature measurement and other functions, to protect the driver’s safety and ensure the normal driving role. This paper introduces a design scheme that can effectively measure the driving safety by using the chip of tilt sensor, magnetoresistive sensor and temperature sensor to realize the accurate measurement of relevant data.