Title:
COIN-SHAPED DETECTION OBJECT IDENTIFICATION DEVICE AND CONTROL METHOD FOR COIN-SHAPED DETECTION OBJECT IDENTIFICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/119193
Kind Code:
A1
Abstract:
Provided is a coin-shaped detection object identification device capable of appropriately identifying objects to be detected, even if a plurality of coin-shaped objects to be detected pass continuously therethrough with no interval. This coin-shaped detection object identification device comprises a control unit (29) having connected therein detection coils (9, 10) configuring a first sensor (4), and a second sensor (5) arranged further upstream than the first sensor (4) in the direction that the objects to be detected pass. Coil output signals (SG1, SG2) on the basis of output signals from the detection coils (9, 10) are input into the control unit (29). The control unit (29): stores a reference signal value being a signal level for the coil output signals (SG1, SG2) as at the time the second sensor (5) has detected a detection object; holds the reference signal value from when the identification of the detected object has been completed until a prescribed time has passed; and identifies the detected body on the basis of the difference between the reference signal value and a peak value for the coil output signals (SG1, SG2) as at the time the detected object passes the first sensor (4).
Inventors:
MOMOSE SHOGO (JP)
Application Number:
PCT/JP2013/084657
Publication Date:
August 07, 2014
Filing Date:
December 25, 2013
Export Citation:
Assignee:
NIDEC SANKYO CORP (JP)
International Classes:
G07D5/08; G01B7/287
Foreign References:
| JPS61221990A | 1986-10-02 | |||
| JPS56168871U | 1981-12-14 | |||
| JPH11175795A | 1999-07-02 | |||
| JPS5824870U | 1983-02-17 | |||
| JPS57155682A | 1982-09-25 | |||
| JPS5991594A | 1984-05-26 | |||
| JPS57148272U | 1982-09-17 |
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