Driving device, method for driving card reader to realize card services, and self-service payment system

The invention discloses a card reader driving device, a method for driving a card reader to realize card services and a self-service payment system. The driving device comprises a unified interface layer, a service layer, a driving layer, an instruction layer and a serial port communication layer, wherein the unified interface layer calls the service layer according to a service request sent by the service platform; the service layer analyzes the service request under the calling of the unified interface layer to form instruction construction information, and sends the instruction constructioninformation to the driving layer; the driving layer calls the instruction layer according to the received instruction construction information, and sends an operation instruction provided by the instruction layer to the serial port communication layer; the instruction layer constructs an operation instruction corresponding to the service request according to the instruction construction information under the calling of the driving layer, and provides the operation instruction to the driving layer; and the serial port communication layer sends the operation instruction to the card reader, so that the card reader performs corresponding service processing on the card according to the operation instruction. Through the technical scheme of the invention, the deployment efficiency of the self-service payment system can be improved.