| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To prevent an erroneous determination of a vehicle kind (a bicycle, a motorized bicycle and others) in a vehicle kind discrimination device used in conjunction with an automatic gate apparatus in a bicycle parking lot. <P>SOLUTION: A vehicle kind discrimination device 4 detects a degree at which oscillation frequency of a resonant circuit comprising a loop coil 41 formed of a wound electric wire and a capacitor 42 is changed by lines of magnetic force radiated from a vehicle 10, and discriminates a kind of the vehicle 10 based on the degree. In the present invention, the loop coil 41 is arranged so that a winding plane of the loop coil extends in a vertical direction and is configured so that the vehicle 10 passes through a hollow part 41h of the loop coil. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
