自行车传感器测量行驶里程。

The bike sensor measures miles ridden.

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以里程计作为外部传感器，建立了运动状态下初始对准的数学模型，分析了系统状态的可观测性，并进行了仿真研究。

By selecting an odometer as the system's external sensor, the mathematical model for the alignment in the moving state is established and the observability of the system is analyzed.

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包括单片机控制、电源、传感器、油量报警、油量显示、车速信息、里程信息、LED显示等模块设计和软件的设计。

It consists of MCU control, power, sensor, oil amount warning, oil amount show, LED display and the software design.

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