JPH0453739U - - Google Patents

Description

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of an automatic optical double detection device for a paper sheet counter according to an embodiment of the present invention;
Fig. 2 is a diagram showing the sensor characteristic function curve of this embodiment, Fig. 3a is a flowchart showing the sensor characteristic function automatic setting mode of this embodiment, and Fig. 3b is a diagram showing the sensor characteristic function manual setting of this embodiment. FIG. 4 is a flowchart showing the double detection of paper sheets in this embodiment. 1...Light emission control unit (light emission control means), 2...Sensor (detection means), 2A...Light emitter (light emission unit),
2B... Light receiver (light receiving section), 3... Characteristic function storage section (characteristic function storage means), 4... Setting button, 5...
Light reception level storage section (reference level storage means), 6...
. . . calculation section (calculation means), 7 . . . comparison and judgment section (comparison and judgment means), 8 .

Claims (1)

[Scope of Claim for Utility Model Registration] (1) In a paper sheet counting machine configured to convey and count paper sheets fed out one by one through a conveyance path, a detection means having a light-emitting part that emits light for the paper sheet, and a light-receiving part that receives transmitted light from the paper sheet; a light-emission control means that controls the amount of light emitted from the light-emitting part of the detection means; a characteristic function storage means for setting and storing a characteristic function indicating the relationship between the level of the amount of light received by the light receiving section when the amount of light emitted by the light receiving section is lowered from the maximum level, and the level of the amount of received light and the opacity of the paper sheet; a calculation means for calculating a standard received light amount level based on the characteristic function stored in the characteristic function storage means when the light receiving section of the means receives transmitted light from the first conveyed paper sheet; a reference level storage means for storing a reference received light amount level, and when the light receiving section of the detection means receives the transmitted light of the second and subsequent transported paper sheets, the received light amount of the second and subsequent transported paper sheets is determined; The level is compared with the reference received light amount level stored in the reference level storage means, and based on the comparison result, it is determined whether the conveyed sheet is double conveyed or the conveyed sheet before the conveyed sheet is Comparison and determination means for determining whether double conveyance is occurring or whether both of the conveyed sheets are normally conveyed, and outputting a control signal based on the determination result to a sheet counting control mechanism. Automatic optical double detection device for paper sheet counting machines. (2) In a paper sheet counting machine configured to convey and count paper sheets fed out one by one through a conveyance path, a light emitting unit disposed within the conveyance path and emitting light to the paper sheets; a detection means having a light receiving section that receives transmitted light from the paper sheet; and a setting that is pressed each time an additional paper sheet is inserted between the light emitting sections of the detection means. a button, characteristic function storage means for setting and storing a characteristic function indicating a relationship between the level of light received by the light receiving section of the detection means when the setting button is pressed, and the level of light received and the opacity of the paper sheet; a calculation means for calculating a standard received light amount level based on the characteristic function stored in the characteristic function storage means when the light receiving section of the means receives transmitted light from the first conveyed paper sheet; a reference level storage means for storing a reference received light amount level, and when the light receiving section of the detection means receives the transmitted light of the second and subsequent transported paper sheets, the received light amount of the second and subsequent transported paper sheets is determined; The level is compared with the reference received light amount level stored in the reference level storage means, and based on the comparison result, it is determined whether the conveyed sheet is double conveyed or the conveyed sheet before the conveyed sheet is Comparison and determination means for determining whether double conveyance is occurring or whether both of the conveyed sheets are normally conveyed, and outputting a control signal based on the determination result to a sheet counting control mechanism. Automatic optical double detection device for paper sheet counting machines.