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Joined: 28-Oct-2013
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Quote Prithvi Replybullet Topic: Currency Counter and Fake Note Detector
    Posted: 28-Oct-2013 at 7:38pm
I want to implement a project on"currency counter and fake note detector".Can you provide with necessory circuit diagrams and components required?

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Quote LokeshNash Replybullet Posted: 29-Nov-2013 at 2:05pm
Currency Counter

Block diagram (SBD) for a Currency Counter supporting ultraviolet, infrared, and magnetic sensing, and CIS / CID imaging for banknote verification, and a powerful processor or microcontroller analytics processing for banknote verification.

Design Considerations:

Currency Counters not only count, they also function as a high speed counterfeit banknote detector. With the advanced printing, copying and electronic scanning technologies available today, the need to validate currency authenticity has increased dramatically, increasing the demand for continuous improvement of counterfeit detection technologies.

The electronics, are a highly a mixed-signal system driven by a DSP or MCU for system processing, which is surrounded by a high performance analog products.

Ultraviolet, infrared & magnetic sensing are the typical detection techniques used today to verify the inherent characteristics of banknotes. More advanced systems, capture the banknote images with a CIS or CCD scan, enabling the recognition of denomination, serial number and other aspects of each note.

    * Fluorescence detection uses UV light to check for missing marks & irradiation response of the fake notes.
    * Magnetic ink & different patterns of security strip can be detected by using the magnetic head with a precision amplification scheme.
    * Infrared penetration is used to the thickness detection of the banknote & the absorption of infrared signals to identify the genuine banknotes.

The response signals of these various transducers are low level signals which are very sensitive to system noise. As such a high performance signal conditioning design is required. Multiple channel input, high resolution data converters help simplify the design layout & ensure the accurate measurement.

For those systems which require banknote imaging, in addition to high performance analog signal chains, a system processor such as DSP or ARM combined with a CIS/CCD AFE, capable of complicated algorithmic calculations would be required. The additional processing capability allows the system to perform denomination classification, OCR recognition & banknote fitness detection, etc.

Understandably, there are design trade offs between sheer counting speed and amount of banknote validation that can be done. However, improved motor control and drive designs can help with overall system optimization. Especially as many designs are migrating to BLDC & Stepper motors, due to their low-maintenance, precision & controllability characteristics.

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Quote Prithvi Replybullet Posted: 04-Dec-2013 at 6:55pm
thank you
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Quote Avinash Replybullet Posted: 04-Jun-2014 at 4:09pm
Currency Counting Machine with Fake Note Detection

The currency counting machine or CCM is one of the miracle of the science. The CCM works on the principle on the breadth of the bundle of currency and there in an roller which has rods in an continuous pattern and the roller moves these rods with a particular speed.

The speed remains constant as like in the ATM machine counting machine and these rollers moves on the bundle of the currency and just move out the single currency one by one at a constant and high speed and there is an transducers which detect that how many single currency has passed out in front of it.

Download Project - Currency Counting Machine with Fake Note Detection.pdf
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