Network expansion method for application software based on serial device and self-service terminal

A technology of application software and self-service terminal, which is applied in the field of computer communication, can solve the problems of poor security and high cost, and achieve the effect of high cost, low cost performance and non-destructive upgrade

Inactive Publication Date: 2018-08-07
曲旭光
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method I invented breaks the routine and finds a new way to adopt a new programming idea. It provides a way to expand and upgrade the network of general-purpose serial port applicat...

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  • Network expansion method for application software based on serial device and self-service terminal
  • Network expansion method for application software based on serial device and self-service terminal
  • Network expansion method for application software based on serial device and self-service terminal

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Embodiment Construction

[0033] The virtual serial port is a software serial port (COM port) fabricated out of thin air at the operating system level using the virtual driver technology of the operating system. Compared with the hardware physical serial port (COM1, etc.) of the computer itself, the virtual serial port does not really exist, but from the operating system It can also be seen, set and used in the hardware device manager of . All computer application software can use the virtual serial port as the hardware serial port. For the serial port application software, there is no difference between the virtual serial port and the hardware serial port.

[0034] The purpose and significance of using a virtual serial port instead of a physical serial port is to change the traditional inherent mode of data transfer from software to hardware of the serial port (COM port), making it a de facto software-to-software transfer, so that the serial port application software can be conditionally The communica...

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Abstract

The invention relates to the field of computer communication and the field of application software programming development, in particular to a network expansion method for computer application software based on a serial device and a universal self-service terminal device, and discloses a universal network expansion method suitable for application software based on a serial device and a universal self-service terminal device constructed based on the method. The difficulty of expansion and upgrade of serial application software of many small and medium-sized management units is overcome. According to the core idea of the method, a virtual serial programming technology is adopted for transmitting-receiving and transferring serial communication data between the application software and the serial device, a traditional development concept limited to hardware and database platforms in the past is broken through, and the method has good feasibility, versatility and compatibility. On the basisof making full use of existing software and hardware, time-sharing multi-terminal network expansion of existing standalone-version serial application software of many small and medium-sized management units and service upgrade integrated with third-party platforms can be quickly realized at a low cost.

Description

technical field [0001] The present invention relates to the field of computer communication and application software programming development, in particular to the network expansion of computer application software based on serial port equipment and general-purpose self-service terminal equipment. Background technique [0002] A serial port device refers to a computer connected to a computer through a serial interface (English serial port is also called a serial communication interface or COM interface, and the appearance is usually a 9-pin trapezoid) and uses a serial communication protocol (commonly used are RS232, RS422, RS485, etc.) An electronic device external to a computer for data communication. [0003] In recent years, with the advancement of technology, a new USB-to-serial device connection mode has been derived, which uses PL2303 and other processing chips to convert serial data and USB data to each other through the USB (Universal Serial Bus) interface. Although...

Claims

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Application Information

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IPC IPC(8): G06F13/10G06F9/455H04L29/08
CPCG06F9/45558G06F13/102H04L67/34
Inventor 不公告发明人
Owner 曲旭光
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