This master’s thesis presents an upgrade of a remotely controlled battery-powered lawn mower with a safety module that shuts down the mower deck when excessive tilt is detected. The primary purpose of the developed safety module is to protect the user by switching off the blade motor and preventing it from restarting. In this way, the risk of injury is reduced in situations where the mower might roll down a steep slope or be tilted by the user during cleaning.
To return the mower to its operating state, certain safety conditions must be fulfilled, such as returning the mower to an acceptable inclination range and performing an additional confirmation action using the remote controller. The module also provides visual indication of the operating state.
For the device, we designed the complete schematic and printed circuit board and developed the software responsible for monitoring, controlling, and indicating the overall operation. Several additional functions were also implemented to improve the user experience. The device was thoroughly tested before and after installation on the mower, and its correct operation was verified.
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