| 摘要 |
<p>PROBLEM TO BE SOLVED: To perform accurate measurement of running with simple facilities.SOLUTION: A measurement mat is to be used in a running measurement system which measures a running time on the basis of radio signals received from IC tags attached to a runner. The measurement mat comprises: a plurality of antenna units which receive radio signals output from the IC tags; and a reader unit which supplies power to the plurality of antenna units. The reader unit supplies power by changing the supply target antenna units in order to inhibit the neighboring antenna units from generating magnetic fields at the same time.</p> |
