One aspect of the present invention pertains to an article management system for detecting the presence or absence of an article, said system comprising: an oscillating member capable of oscillating between a first position and a second position; a torque generating member for generating a torque that causes the oscillating member to oscillate from the second position toward the first position; a communication device; a sheet-like radiowave shielding member that, when coming close to the communication device, shields radio waves generated from the communication device; and a control apparatus that acquires a result as to communication possibility by a wireless apparatus with the communication device, and determines, on the basis of said result as to the communication possibility, whether an article is present on a reference surface. Either the communication device or the radiowave shielding member is mounted to the oscillating member. When the oscillating member is situated at the...

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