| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a security device which is placed on an article in a vehicle or the like, securely monitors a thief, and makes it extremely difficult to release the monitoring state. <P>SOLUTION: The security device comprises: a control means built in a polyhedron 1 for determining whether or not each of predetermined multiple faces 1-6 of the polyhedron 1 becomes an upper face of the polyhedron 1 by changing directions thereof in a predetermined sequence; an alarming and reporting means for alarming and/or reporting outside the polyhedron 1 when it is determined by the control means that the each of the predetermined multiple faces 1-6 of the polyhedron 1 does not become the upper face of the polyhedron 1 by changing their directions in the predetermined sequence. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
