| 摘要 |
<p>A weight detecting apparatus for a crane includes a base machine (A) comprising a lower traveling body (1) and an upper rotating body (2); weights (6) mounted on this base machine (A); ID (identification) tags (9,10,11,12,13) which are installed on the respective weights (6a,6b,6c) and in which ID information on weight mounting conditions has been written; and an ID reader (14) for reading the ID information. In this weight detecting apparatus, the mounting conditions of the weights (6a,6b,6c) are detected by wireless communications between the ID reader (14) and the ID tags (9-13).
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