摘要:
A method of controlling a banknote store comprising at least one winding means and at least one elongate support means which can be wound and/or unwound from the winding means for storing and/or transporting a banknote, comprises determining the radius or diameter of a spool comprising at least the winding means using the degree of rotation of the winding means and the corresponding linear amount of movement of the elongate support means.
摘要:
A module (28) for sensing the edges of a banknote as it passes through the module. The module consists of an array of LEDs (32) optically coupled to a light diffusing element (36) past which the banknote moves. A CCD array (40) has photoelectric conversion elements coupled to the path in which the banknote moves by a self-focusing fibre-optic lens array (38). The CCD array consists of four segments (42,44,46,48) having individual shift registers which are read out in parallel, and converted to digital signals by a number of comparators (56). The comparators compare the CCD pixel output with individual threshold levels which are stored in a digital memory (54). The pixel threshold levels are converted to an analog signal for comparison with the CCD output signals by digital to analog converters (54). The digital data streams produced are divided into series of data which are analysed to determine the presence of an optical transition in the corresponding pixel series of the CCD arrays. If a transition is identified, the location of the pixel series is transmitted to a memory (58) for use in banknote validation.
摘要:
For the classification of a pattern in particular on a banknote or a coin, a receiving system detects, by a measurement procedure, vectors of a test item, a pre-processing system transforms the measured vectors into local feature vectors ALCi(l) and a learning classification system carries out a plurality of testing operations. A first activity compares in a first testing operation each of the local feature vectors ALCi(l) to a vectorial reference value. It is only if the first testing operation takes place successfully that the first activity, by means of first estimates which are stored in a data base, links the local feature vectors ALC(l) to provide global line feature vectors AGIi. In a second testing operation a third activity compares the global line feature vectors AGIi to corresponding reference values and, if the second testing operation is successful, computes a single global surface vector AGF of which a fourth activity. in a third testing operation, compares its distance in accordance with Mahalanobis relative to an estimated surface vector to a reference value. The test item is reliably classified if all three testing operations take place successfully.
摘要:
For the classification of a pattern in particular on a banknote or a coin, a receiving system detects, by a measurement procedure, vectors of a test item, a pre-processing system transforms the measured vectors into local feature vectors ALCi(l) and a learning classification system carries out a plurality of testing operations. A first activity compares in a first testing operation each of the local feature vectors ALCi(l) to a vectorial reference value. It is only if the first testing operation takes place successfully that the first activity, by means of first estimates which are stored in a data base, links the local feature vectors ALC(l) to provided global line feature vectors AGIi. In a second testing operation a third activity compares the global line feature vectors AGIi to corresponding reference values and, if the second testing operation is successful, computes a single global surface vector AGF of which a fourth activity, in a third testing operation, compares its distance in accordance with Mahalanobis relative to an estimated surface vector to a reference value. The test item is reliably clasified if all three testing operations take place successfully.