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公开(公告)号：EP0072237B1
公开(公告)日：1987-04-29
申请号：EP82304196.7
申请日：1982-08-09
IPC分类号： G07D7/00
CPC分类号： G07D7/121 , G07D7/1205 , G07D7/187
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公开(公告)号：EP0070621A3
公开(公告)日：1984-03-28
申请号：EP82303129
申请日：1982-06-16
发明人： Curl, Barry John
CPC分类号： G07D7/185 , G01N21/8901 , G07D7/183
摘要： @ Apparatus for detecting missing areas or folded corners in sheets, for example banknotes (14), is disclosed. Figure 1 shows a banknote (14) being scanned in a strip along one edge of the banknote. A strip light source (12) and a strip sensor (16) are disposed on opposite faces of the banknote which is caused to move perpendicularly to the light path between the source and sensor, and perpendicularly to the plane of the drawing. A photometer (18) responds to the total amount of light transmitted through the edge strip of the banknote (14) as the banknote is scanned. A filter (20) may be inter posed in the light path to improve the sensitivity of the apparatus. The total amount of transmitted light detected by the photometer (18) is integrated over a period of the scan during which the intensity differs substantially from the mean level for an unflawed portion of the banknote. Integration is thus performed only over missing or folded areas of the banknote. It may also be limited to only the leading and trailing portions of the edge strip of the banknote, corresponding to the corners of the note. In order to compensate for the passage of a skewed banknote passing through the apparatus, integration is inhibited over the said period whenever the intensity waveform from the photometer (18) is steeper than a predetermined gradient.
摘要翻译： 公开了用于检测纸张中缺失区域或折叠角的装置，例如纸币（14）。 图。 图1示出了沿纸币的一个边缘沿条带扫描的钞票（14）。 带状光源12和条带传感器16设置在纸币的相对表面上，该纸币垂直于源和传感器之间的光路垂直移动，并垂直于图面。 当扫描纸币时，光度计（18）响应透过纸币（14）的边缘条的光的总量。 滤光器（20）可以插入在光路中以提高设备的灵敏度。 由光度计（18）检测到的透射光的总量在扫描期间被积分，在该期间，强度与纸币的未张开部分的平均水平显着不同。 因此，仅对纸币的缺失或折叠区域进行整合。 也可以仅限于纸币的边缘条的前后部分，对应于钞票的角部。 为了补偿通过设备的偏斜纸币的通过，只要来自光度计（18）的强度波形比预定斜率更陡峭，则在所述周期内就抑制积分。
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公开(公告)号：EP0072237A2
公开(公告)日：1983-02-16
申请号：EP82304196.7
申请日：1982-08-09
IPC分类号： G07D7/00
CPC分类号： G07D7/121 , G07D7/1205 , G07D7/187
摘要： Apparatus is disclosed for scanning a banknote (33). A lengthwise strip of the banknote (33) is illuminated with white light, and the banknote is moved parallel to its width. Light reflected from all regions of the lenghtwise strip is conveyed through an optical fibre fishtail array to a single photodetector, or to a spectroscope and thence to several photodetectors for colour scanning. The waveform produced by the or each photodetector is then characteristic of the surface of the banknote, and is used in an analysing circuit for banknote pattern recognition, or to sense the condition of the banknote with regard to its age or degree of soiling. The analysing circuit includes means for compressing or expanding the lenght of the waveform to give it a standard lenght for subsequent comparison with one or more stored characteristic waveforms in a memory (16). The apparatus also determines the mean level of intensity of the waveform in an integrator (9), and includes a circuit (24 to 28) for obtaining the standard deviation of selected points of the waveform from the mean value, a low standard deviation indicating a badly soiled or worn banknote.
摘要翻译： 公开了用于扫描钞票（33）的装置。 钞票（33）的纵向条被白光照亮，纸币平行于其宽度移动。 从纵向条带的所有区域反射的光通过光纤鱼尾阵列传送到单个光电检测器，或传输到分光镜，然后传送到若干光电检测器用于彩色扫描。 由该或每个光电检测器产生的波形然后是纸币表面的特征，并且用于钞票图案识别的分析电路，或者根据其年龄或污染程度来感测钞票的状况。 分析电路包括用于压缩或扩大波形长度以给予其标准长度的装置，用于随后与存储器（16）中存储的一个或多个存储的特征波形进行比较。 该装置还确定积分器（9）中的波形的平均强度水平，并且包括用于从平均值获得波形的所选点的标准偏差的电路（24至28），表示波形的平均值的低标准偏差 严重污损或损坏的钞票。
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4.发明公开Method and apparatus for inspecting sheets for flaws 无效Verfahren und Einrichtung zur Fehleruntersuchung von Bahnen。
公开(公告)号：EP0070621A2
公开(公告)日：1983-01-26
申请号：EP82303129.9
申请日：1982-06-16
发明人： Curl, Barry John
CPC分类号： G07D7/185 , G01N21/8901 , G07D7/183
摘要： @ Apparatus for detecting missing areas or folded corners in sheets, for example banknotes (14), is disclosed. Figure 1 shows a banknote (14) being scanned in a strip along one edge of the banknote. A strip light source (12) and a strip sensor (16) are disposed on opposite faces of the banknote which is caused to move perpendicularly to the light path between the source and sensor, and perpendicularly to the plane of the drawing. A photometer (18) responds to the total amount of light transmitted through the edge strip of the banknote (14) as the banknote is scanned. A filter (20) may be inter posed in the light path to improve the sensitivity of the apparatus. The total amount of transmitted light detected by the photometer (18) is integrated over a period of the scan during which the intensity differs substantially from the mean level for an unflawed portion of the banknote. Integration is thus performed only over missing or folded areas of the banknote. It may also be limited to only the leading and trailing portions of the edge strip of the banknote, corresponding to the corners of the note.
In order to compensate for the passage of a skewed banknote passing through the apparatus, integration is inhibited over the said period whenever the intensity waveform from the photometer (18) is steeper than a predetermined gradient.摘要翻译： 公开了用于检测纸张中缺失区域或折叠角的装置，例如纸币（14）。 图。 图1示出了沿纸币的一个边缘沿条带扫描的钞票（14）。 带状光源12和条带传感器16设置在纸币的相对表面上，该纸币垂直于源和传感器之间的光路垂直移动，并垂直于图面。 当扫描纸币时，光度计（18）响应透过纸币（14）的边缘条的光的总量。 滤光器（20）可以插入在光路中以提高设备的灵敏度。 由光度计（18）检测到的透射光的总量在扫描期间被积分，在该期间，强度与纸币的未张开部分的平均水平显着不同。 因此，仅对纸币的缺失或折叠区域进行整合。 也可以仅限于纸币的边缘条的前后部分，对应于钞票的角部。 为了补偿通过设备的偏斜纸币的通过，只要来自光度计（18）的强度波形比预定斜率更陡峭，则在所述周期内就抑制积分。
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公开(公告)号：EP0070621B1
公开(公告)日：1986-05-21
申请号：EP82303129.9
申请日：1982-06-16
发明人： Curl, Barry John
CPC分类号： G07D7/185 , G01N21/8901 , G07D7/183
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公开(公告)号：EP0072237A3
公开(公告)日：1983-07-06
申请号：EP82304196
申请日：1982-08-09
IPC分类号： G07D07/00
CPC分类号： G07D7/121 , G07D7/1205 , G07D7/187
摘要： Apparatus is disclosed for scanning a banknote (33). A lengthwise strip of the banknote (33) is illuminated with white light, and the banknote is moved parallel to its width. Light reflected from all regions of the lenghtwise strip is conveyed through an optical fibre fishtail array to a single photodetector, or to a spectroscope and thence to several photodetectors for colour scanning. The waveform produced by the or each photodetector is then characteristic of the surface of the banknote, and is used in an analysing circuit for banknote pattern recognition, or to sense the condition of the banknote with regard to its age or degree of soiling. The analysing circuit includes means for compressing or expanding the lenght of the waveform to give it a standard lenght for subsequent comparison with one or more stored characteristic waveforms in a memory (16). The apparatus also determines the mean level of intensity of the waveform in an integrator (9), and includes a circuit (24 to 28) for obtaining the standard deviation of selected points of the waveform from the mean value, a low standard deviation indicating a badly soiled or worn banknote.
摘要翻译： 公开了用于扫描钞票（33）的装置。 钞票（33）的纵向条被白光照亮，纸币平行于其宽度移动。 从纵向条带的所有区域反射的光通过光纤鱼尾阵列传送到单个光电检测器，或传输到分光镜，然后传送到若干光电检测器用于彩色扫描。 由该或每个光电检测器产生的波形然后是纸币表面的特征，并且用于钞票图案识别的分析电路，或者根据其年龄或污染程度来感测钞票的状况。 分析电路包括用于压缩或扩大波形长度以给予其标准长度的装置，用于随后与存储器（16）中存储的一个或多个存储的特征波形进行比较。 该装置还确定积分器（9）中的波形的平均强度水平，并且包括用于从平均值获得波形的所选点的标准偏差的电路（24至28），表示波形的平均值的低标准偏差 严重污损或损坏的钞票。
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