Transcript
Application Note
Electronic Point of Sale System (ePOS)
Overview
Electronic Point of Sale (ePOS) Architecture
There is a clear move in the industry to employ electronic point of sale systems which enables faster service and increased efficiency in product management. Popular ePOS solutions include the following:
The key feature of a POS terminal revolves around the reading of contact and contactless cards while securely transmitting the information, including the transaction, to a server for authentication and approval. Today, most POS systems transmit transactions to their network over a tethered connection but there is a growing demand for a portable / mobile solution. The optimized device is suitable for markets such as retail, healthcare, hospitality, education and more.
: Secured Data terminal : Point of Sale : Bar code scanner : RFID reader : Electronic Shelf Label : Contact based and contactless Smart Card Reader : Magnetic Card Reader This application note illustrates the development of an Electronic Point of Sale (ePOS) system based on the ARM Cortex Ax processor.
Key Specifications of ePOS system : Hardware ! ARM Cortex Ax Processor ! Flash Memory – 2GB for application and OS Storage ! SDRAM DDR3 – 512MB for application and OS program execution ! Magnetic Card Reader ! Contact Based Smart Card Reader ! Contactless Smart Card Reader ! Bar code Scanner ! Tamper proof security control for confidential data Storage ! Thermal Printer with motor control via VFD ! Ambient Light Sensor ! 12 bit General Purpose ADC (SAR) and DAC ! Power Management ICs : Electrical Interfaces
! Wi-Fi / 3G Module ! 3.5”- 7” LCD Display with Capacitive Touch Screen ! 10/100/1000-T Ethernet interfaces ! RS232 Interface ! USB interface ! SD Card interface (for optional Storage & Boot Source) ! Four wire interface for stepper motor
LCD WITH CAPACITIVE TOUCH
SPEAKER
BACKLIGHT CONTROL
MAGNETIC CARD READER
AUDIO DAC
SMART CARD READER
FLASH MEMORY
BAR CODE READER
DDR3
Wi-Fi
THERMAL PRINTER
MPU
USB
MOTOR DRIVER
RFID / NFC RS232 ETHERNET SECURITY CHIP WITH NVRAM
SD CARD
MESH NETWORK TAMPER DETECTION SECTION
POWER MANAGEMENT UNIT DC SUPPLY
BACKUP BATTERY
KEYPAD
Block diagram for an ePOS System application : Software ! Diagnostic software for all the interfaces ! X-Loader porting to custom platform ! U-Boot porting to the custom platform
! OS support for Linux, Android and WinCE ! Event generation through e-mails/data logging ! GUI application for data monitoring and statistical data representations ! System Integration and Testing
Smart Features The ePOS systems enable several intelligent features such as: Tamper proof Security: Certain tamper proof features can be realized using Hardware components or middleware or a combination of both. Tamper proof security features can be implemented via SoC if the tamper interface is available in SoC or using external hardware components or middleware. : Hardware: The ePOS system has Tamper Proof Security arrangements for detecting ! Mechanical ID breakage ! Signal Probing ! Drill on PCB and Mechanical ID (i.e) Drill Proof
: Software ! Confidential data can be encrypted in the device before storing it in the database or storage device and can be decrypted while reading back from the data base or storage device. ! The access via Smart Card Reader is internally controlled and authenticated by SAM interface. Display Brightness Control: An ambient Light Sensor is used to control the LCD brightness automatically depending on the environment where unit used is being operated. Power Management: An efficient power management IC is used that allows the loaded software to optimize power consumption through switching between various modes like power save mode, idle mode and sleep mode depending on usage.
Benefits : Increase transaction speed and quality of service ! Easy-to-use touch screen EPOS allows products to be found quicker, operators can be led through a transaction and training times are often reduced. Reduced Paperwork : ! POS systems help reduce paperwork significantly and also saves time doing stock takes or reporting.
Reduce fraud and shrinkage : ! While stock levels are carefully monitored by POS systems, the chances of fraud & shrinkage of stock is greatly reduced. Better Staff productivity :
Mistral has a broad array of concepts and support to help you design your portable point of sale solution. Mistral’s expertise in ePOS designs includes: : Customized Product Architecture
! Orders are automatically relayed to the kitchen or warehouses directly from the POS terminal or wireless order pad, leaving staff with more time to interact with customers. Stock Management : ! Businesses have the ability to quickly review their current levels of stock and easily identify areas in which a greater level of stock is required.
: Design Consultation and Review : Hardware Design and Development ! Smart Display with Capacitive multi-touch ! Connectivity – WiFi, 10M/100M/1G Ethernet, USB, WWAN – 2G/3G modem ! Sensors (Accelerometer, Gyro) : Power Optimization and Battery Management
Reporting : ! Reports from a basic analysis of daily or annual profit margins, to an identification of the top selling products or services in a company’s range can be made.
: Product Certifications and Deployment ! FCC, CE, UL certification : Application Design and Development ! Biometric Authentication (Fingerprint, IRIS)
Summary
! Smart Card Reader
Leveraging on 15+ years of expertise in design and development of embedded systems, Mistral delivers robust, high-performance solutions for electronic point of sale equipment. Mistral has designed and developed solutions for Electronic Labeling, PDT Handhelds, Biometric Authentication, POS Terminals, Digital Signage, Portable Barcode scanners & other AIDC Technologies.
! Tamper Detection ! GPS navigation : Software Design and Development ! Android / Embedded Linux/ Windows Embedded Firmware ! Board Support Package and Device drivers ! Sensor and third-party module integration.
About Mistral
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