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The scanner for direct payment invoices
 

The scanner for direct payment invoices

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This is the latest project I did for the company. By reusing existing equipment we achieved new features existing only in higher class scanners costing minimum 10 times more.

This is the latest project I did for the company. By reusing existing equipment we achieved new features existing only in higher class scanners costing minimum 10 times more.

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    The scanner for direct payment invoices The scanner for direct payment invoices Presentation Transcript

    • Project scope and requirementsProject title: To streamline direct payment document approval by attaching scanned PDF file to the document in SAP.Project scope: – Design bar-code labels carrying sequential file name and path on the server. – Create external control panel equipped with the button and LCD character display for the HP ScanJet500 scanner . – Procure handheld 2D scanner to read file name and location from bar-coded label on the original invoice. – Develop control panel and server side software.Project constrains: – Users should not receive significant additional workload by using the new process. – Existing HP ScanJet 5000 scanner and the Zebra label printer should be reused. – Locate the scanner in the vicinity of the multifunctional printer unattended. – There should be no computer directly attached to the scanner or accessible by the user. – User should get the feedback about current scanning stage and outcome. – Total budget excluding the HP ScanJet 5000 and Zebra printer (which we already have ) is 2K Euro per location. 0
    • Basic process flow chart  SAP document now is directly linked to the PDF document on the server.  User takes bar-coded labels from the preprinted roll and attaches them to the direct payment File server invoices. Scanner picks up the file name and the path embedded in the barcode and enters it directly in the Accountant fills in active field as if it was required SAP data and typed from the physical while still in the “Link keyboard. to web page” filed User puts scanned scans the document documents in the locked barcode with the bin for accounting handheld scanner. department.Automatic scannersolution processes allpages and saves PDFdocuments on the server. 1
    • Detailed technical diagram• Button connected to the Arduino module transmits command to the server via USB to LAN adapter.• Upon receiving the command “ScantoPDF” software scans inserted pages and saves them on the server as PDF documents with the filename encoded in QR bar- code. Any following page without barcode is treated as next page of the same PDF document. 2
    • QR barcode label designQR 2D (Quick Response code, two dimensional ) barcodes were selected for built-in error protection and large amount of information they may carry. ScanToPdfscanner software can automatically decode information stored in the bar-code andassign appropriate file name. (http://en.wikipedia.org/wiki/QR_code) • Company logo • Department name • QR code with the file path and file name encoded • Human readable file path and name for backup purpose.Label view in Zebra Designer software Real labels printed with ZEBRA LP2844 printer. 3
    • ScanToPDF software key featuresO Image Corporation “ScanToPDF” software was selected after comparison with the main competitors by the following features - – Cost effective, 1.2 K Euro per license with all needed modules included. – Free evolution of all features (with embedded watermark). – Small, fast and light. Executable file weights only 3 Mb. The whole package with all possible modules weights only 15 Mb. – Modular design when only needed features are activated – Standard TWAIN and VIA scanner interfaces. – Ability to detect and correctly read form any angle QR barcodes labels – “Regex” rules for processing barcode values enabling any possible file naming schema. – Easy to include in the external scripting solutions thanks to the rich set of command line parameters – Ability to perform unattended 4
    • Process control script filesSoftware presented here is in beta stage – meaning that it was tested in realenvironment with sample documents. Many different test were made duringdevelopments and after, but it is still possible that under same conditions during realuse additional programming could become necessary. • Arduino code (www.arduino.cc) is responsible for sending commands to the server and processing responses displaying them on the LCD display. • Button manager LUA script (www.lua.org) is server side script communication with Arduino control panel. It initiates scanning session and returns status responses created by Events Manager PowerShell script. • EventManager Windows PowerShell script (http://bit.ly/fL1tcz) is responsible for parsing ScanToPDF application log file finding number of documents successfully processed. It also handles error conditions such as – Button was pressed without pages inserted – Pages face up or bad first bar-code 5
    • Scanner control panel bill of materialsItem name Order code Qty Price Total LVLLCD 8x2 LED yellwo 58x32x13.5 RC0802A-YHY-CSX 1 2,6 2,6Pusgbutton ON-(ON) LED green/red PB613-3F-BL-13 1 0,95 0,95 Arduino Duemilanove controller board (USB) SP.ARDUINO_2009 1 19 19Project box 15x29x44mm white Z23.WHITE 2 0,5 1Project box 24x47x66mm white Z24A.WHITE 2 0,6 1,2Ribbon cable gray 20 wires FBK28-20G 2 0,55 1,1Doubleside skotch tape 1.2mm Tesa 04957 TPDS25/12/12.04957 1 3,2 3,22.54mm pin header 1x40 WSL140 1 0,15 0,15 LVL with VAT 29,2 Eur 41,54 All above listed materials and parts are off the shelf components usually available immediately. Assembly doesnt require special tolls or equipment. Electrical requirements are 5 volts and 300 mA making it safe to use in any environment. 3D rendering of the scanner and control panel were done using free 3D modeling software “Google sketchup” (http://sketchup.google.com/). 6
    • Control panel assembly process 7
    • Control panel assembled and installed 8