Patent ID: 7984694

Claim:
An animal feeder, comprising: at least one fodder bin, for storing at least one kind of fodder, and each said at least one fodder bin having a fodder outlet, for outputting the fodder from the at least one fodder bin; a fodder mixing device, for controlling the output of the fodder in each said at least one fodder bin comprising: a first turntable, having at least one fodder inlet, and a passage at the bottom of the fodder inlet comprising a containing space and a sensor for detecting the quantity of fodder in the passage; a second turntable, having at least one hole for receiving fodder from at least the passage; and a driving device, for rotating the first turntable and the second turntable asynchronously; a control module, for controlling the operation of the animal feeder; a radio frequency identification (RFID) system; and an audio frequency device, for outputting an audio frequency.