PAPER SHEET DETECTION DEVICE, PAPER SHEET DETECTION METHOD, AND PAPER SHEET PROCESSING DEVICE

• Main Authors: TAKAHASHI HITOSHI, IGARASHI OSAMU, INAGE TORU
• Format: Patent
• Language: English; Japanese
• Published: 17.09.2020
• Subjects: CHECKING-DEVICES; CONVEYING; HANDLING OF COINS OR OF PAPER CURRENCY OR SIMILAR VALUABLEPAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING,DISPENSING, CHANGING OR DEPOSITING; HANDLING THIN OR FILAMENTARY MATERIAL; HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES; PACKING; PERFORMING OPERATIONS; PHYSICS; STORING; TRANSPORTING

To provide a paper sheet detection device, a paper sheet detection method, and a paper sheet processing device that enable presence/absence of a paper sheet to be detected favorably.SOLUTION: The paper sheet detection device includes: an optical sensor 101 having a light emitting part 102 and a light receiving part 103; a storage unit 63 that stores a first threshold value to be used for determination as to whether there is a paper sheet S, a target light receiving level set as a target value at a light receiving level in the light receiving part 103 in a case where there is no paper sheet S, and a second threshold value set at a value more than or equal to the first threshold value and less than the target light receiving level; an estimation unit 111 that estimates presence/absence of the paper sheet S; and a light amount adjustment unit 112 that, when it is estimated by the estimation unit 111 that there is no paper sheet S in a case where the light receiving level in the light receiving part 103 is more than or equal to the first threshold value and less than the second threshold value, adjusts the amount of light emitted from the light emitting part 102 such that the light receiving level in the light receiving part 103 becomes the target light receiving level.SELECTED DRAWING: Figure 3 【課題】紙葉類の有無を良好に検知することが可能となる紙葉類検知装置、紙葉類検知方法および紙葉類処理装置を提供する。【解決手段】発光部１０２と受光部１０３とを有する光学センサ１０１と、紙葉類Ｓがあるか否かの判断に用いられる第１閾値と、紙葉類Ｓが存在しない場合の受光部１０３での受光レベルの目標値として設定された目標受光レベルと、第１閾値以上かつ目標受光レベル未満の値に設定された第２閾値と、を記憶する記憶部６３と、紙葉類Ｓの有無を推定する推定部１１１と、受光部１０３での受光レベルが第１閾値以上かつ第２閾値未満である場合に、推定部１１１により紙葉類Ｓが無いと推定されると、受光部１０３での受光レベルが目標受光レベルとなるように発光部１０２から照射される光の光量を調整する光量調整部１１２と、を有する。【選択図】図３