The basic principle of POS system is to create commodity data in a computer file, directly read the barcode on the commodity through the online structure of the computer cash register and the optical reading device on the cash register equipment (or directly input the code through the keyboard), and then display the commodity information (unit price, department, discount ...) immediately, so as to speed up the cash register and correct it.
The detailed information of each commodity sale (price, department, time period and customer level) is automatically recorded and then sent back to the computer by the online framework. Through computer calculation and processing, various sales statistics and analysis information can be generated as the basis for management.
The POS machine reads the magnetic stripe information on the cardholder's bank card through the card reader, the POS machine operator inputs the transaction amount, and the cardholder inputs the personal identification information (i.e. password). The POS machine sends the information to the issuing bank system through the UnionPay center to complete the online transaction, give the information of success or failure, and print the corresponding bill.
The application of POS realizes the online consumption of credit cards, debit cards and other bank cards, ensures the safety, rapidity and accuracy of transactions, avoids complicated labor such as manual blacklist inquiry and bill pressing, and improves work efficiency.
The design requirements of magnetic stripe card module meet the needs of three-track magnetic cards, that is, the module should be able to read magnetic cards with 1/2, 2/3 and 1/2/3 tracks.
1. Fixed POS machine
Advantages: 1, convenient software upgrade and maintenance; 2, network dialing mode, fast dialing speed; 3. It is easier to clear POS transactions.
Disadvantages: online operation is required, and guests need to pay at the cashier.
Merchants suitable for integrating transformation projects.
2. Wireless POS machine
Advantages: 1, wireless operation, free payment place; 2. Small size.
Disadvantages are: 1, unstable communication signal; 2. Data is easily lost; 3. The cost is high.
Applicable to the type of merchants who collect money at the guest's residence.
Suitable for large and medium-sized supermarkets, chain stores, hypermarkets, large and medium-sized hotels and all high-level retail enterprises.
With the function of IC card, you can use membership card to issue IC cards and securities internally.
You can talk and show off.
Can be connected with a variety of peripherals such as scanning guns and printers.
It has the management functions of front-end and back-end sales, warehousing and distribution of large supermarket chains.
The catering type has the function of catering service, and can be externally connected with various peripherals such as multiple kitchen printers and handheld ordering machines.
It can realize unattended remote communication and data download with PC.
It has the function of Ethernet communication, and constitutes the real-time management system of the head office and branch network through ADSL broadband.