Boots – shoes – and leggings
Patent
1998-02-19
2000-06-13
Ellis, Christopher P.
Boots, shoes, and leggings
209534, G06F 1700
Patent
active
060740817
DESCRIPTION:
BRIEF SUMMARY
This invention relates to an apparatus and method for processing sheet material such as bank notes.
DE 27 60 166 shows such an apparatus which is constructed from different units. In a singler the sheet material present in a stack is singled sheet for sheet and delivered to a transport path which transports the singled sheet material through the apparatus.
Along the transport path a plurality of sensor units are mounted, each sensor unit detecting certain features of the sheet material and combining them into a measuring result. The structure of the sensor units used here is shown in DE-PS 27 60 165. Each sensor unit has a transducer which detects certain features of the sheet material and converts them into an electric signal. This signal is transformed in a signal processing stage. The usually analog signal is generally converted into digital measuring data here. The measuring data are finally transformed into yes-or-no information in an evaluation unit of the sensor unit. This information constitutes the sensor unit's measuring result and is stored in a main memory.
The main memory is used as a connection for data exchange between the units of the apparatus. It can be accessed by all units which write or read the data necessary for processing the sheet material. In the main memory one data record is stored for several sheets in each case.
From the sensor units' measuring results stored in the main memory for each sheet material, evaluation information is first produced in a central evaluation unit. A decision table stored in the evaluation unit is used to determine from the evaluation information the destination units for the relevant sheet material.
The destination units can be for example stackers for stacking the sheet material or shredders for destroying the sheet material. The destination units for the corresponding sheet material are stored in the main memory. With reference to the stored destination unit the sheet material is accordingly guided and deposited by the transport unit. After transport of the sheet material to the destination unit the transport unit writes positive or negative information about the outcome of processing in the main memory.
The processing operation in the apparatus is controlled by a control unit. This unit also accesses the main memory and can monitor and log the processing operation with reference to the information deposited there. Further, the control unit serves to initialize the units of the apparatus in accordance with an operating mode adjusted by the operator. This includes for example storing the correct decision table for the selected operating mode in the central evaluation unit.
In the known system each sensor unit can derive its measuring result only from the sheet material measuring data received by it.
On these premises, the invention is based on the problem of proposing an apparatus for processing sheet material which permits the quality of derivation of the sensor units' measuring result to be improved.
The basic idea of the invention is substantially to derive a sensor unit's measuring result using data from other sensor units about the corresponding sheet material. For this purpose at least one sensor unit is provided with a memory in which data records of a plurality of sheets can be managed. Each of these data records is provided with areas in which data from at least one other sensor unit can be stored.
The advantage of the invention is that the sensor unit has data from other sensor units available which it can take into account when deriving its own measuring result. Knowledge of these data enables the sensor unit to derive its measuring result from these data faster and more exactly.
The sensor unit preferably has a measuring unit and an evaluation unit, the memory of the sensor unit being provided in the evaluation unit. Further, the measuring results of the sensor unit are not restricted to yes-or-no information but equipped with a higher information content. The measuring results can be for example the length or width of the sheet material i
REFERENCES:
patent: 4749087 (1988-06-01), Buttifant
patent: 5310036 (1994-05-01), Hell
patent: 5563393 (1996-10-01), Coutts
patent: 5649627 (1997-07-01), Wako
Herrmann Walter
Smith Paul
Stein Dieter
Wunderer Bernd
Ellis Christopher P.
Giesecke & Devrient GmbH
Tran Khoi H.
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