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How to detect the absence of coffee beans in a coffee bean grinder
How to detect the absence of coffee beans in a coffee bean grinder
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机译:如何在咖啡豆研磨机中检测到咖啡豆的缺失
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摘要
A method for detecting a state of a coffee bean grinder includes providing a supply voltage to a motor of a grinding apparatus, and monitoring with a motor stall detection sensor at least one operating parameter of the motor. The method further includes determining whether a motor stall has been detected based on monitoring the at least one operating parameter. The method also includes measuring using a weight sensor a weight of coffee grounds that have been ground by the grinding apparatus, and determining that no beans are present in a hopper that feeds coffee beans to the grinding apparatus when no motor stall has been detected and no change in weight has been detected at the weight sensor for a predetermined amount of time. A coffee bean grinder is also disclosed.
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