GBVM without dual sensor / SNR 120 or 020 (‘old’ version)
GBVM with dual sensor / SNR 121 or 021 (‘old’ version)
The performance indicators:
Return rate: percentage of entered notes (1st pass) which were returned to the enduser
o Overall return rate (including cancelled transactions)
o Return rate due to ‘misrecognised’ notes
Reject rate: percentage of deposited notes (2nd pass) / and or dispensed notes which were moved to the reject bin
Unfit / damage rate: percentage of deposited notes (cat4b) which were categorized on the 2nd pass as cat4b
Suspect rate: percentage of entered / deposited notes – could be on 1st or 2nd pass depending on the module settings – which were categorized as suspect (cat3)
Calculation performance indicators
The calculation of the performance indcators is depending on the mode the module is working in (e.g. ECB / non ECB).
Return rate due to ‘misrecognized’ notes = (IV_transport_errors + IV_recognition_errors + IV_note_errors + (IV_suspect – depending on setting to return or capture suspect notes)) / IV_total * 100%.
Example (see figure x): return rate = (22 + 406 + 111) / 5’606 * 100% = 9.6%
(Overall) return rate = (IV – DP)/ IV * 100%
Example: (5’606 – 3’592) / 5’606 * 100% = 36% (which is very very high)
Reject rate = (DP_transport_errors + DP_recognition_errors + DP_note_errors + WC_transport_errors + WC_recognition_errors + WC_note_errors + (WC_unfit – depending on application settings – by default these notes will be dispensed)) / (DP + WC) *100%
Example (see figure x): (6 + 30 + 16) / 3’592 * 100% = 4.84%
In case of deposit a percentage larger than 2% might – dependent on the rejected note quality – cause a reject bin full before the cassettes are full. For a recycler it might be required to have a reject rate lower than 2% while from the recycling cassettes the notes will be dispensed again and the cassettes will longer to go full.
Unfit / damage rate = DP_damaged / DP * 100%
Example: 138 / 3’592 = 3.84%
Suspect rate = DP_suspect / DP