Commercial cash register

A commercial cash register and mainframe technology, applied in the field of interface connection technology, can solve problems such as poor display effect and complicated connection operation, and achieve the effect of improving display effect, avoiding conversion process, and high reliability

Inactive Publication Date: 2009-12-30
HISENSE INTELLIGENT COMML SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the existing commercial cash register adopts the VGA interface to connect the host computer and the display, the connection operation is complicated and the display effect is not good, and a commercial cash register designed with a new interface connection mode is provided. , only one DVI dedicated cable is needed to complete the connection between the host computer and the monitor, the connection is simple and the reliability is high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment one, see figure 2 As shown, the interface adapter board of this embodiment considers that the signals that need to be transmitted between the host computer and the display include: LVDS signals (R0-, R0+; R1-, R1+; R2-, R2+, R2-, R2+, ; R3-, R3+; CK-, CK+), backlight control signal (including PWM signal for adjusting backlight brightness and pulse signal for controlling backlight switch), +12V DC power supply signal for liquid crystal display, touch button signal and The +5V DC power signal for powering the touch screen, therefore, it is preferable to use the DVI-I interface XS1 to design the interface adapter board. Specifically, the analog signal terminals in the DVI-I interface XS1 can be used to transmit touch key signals and +5V DC power signals; the digital signal terminals in the DVI-I interface XS1 can be used to transmit LVDS signals, backlight control signals and +12V DC power signal.

[0029] Among them, the touch button signal can be transmitte...

Embodiment 2

[0041] Embodiment 2, for a commercial cash register designed with a non-touch liquid crystal display, since the display does not need to feed back touch key signals to the host, and the host does not need to provide +5V DC power to the display, therefore, the interface adapter board The design of USB terminal XS4 and RS232 terminal XS5 can be omitted, and only LVDS terminal XS2 and transfer terminal XS3 are reserved. At this time, since the number of signals to be transmitted between the host and the monitor is reduced, only the 24 digital signal terminals of the DVI interface XS1 can meet the transmission requirements. Therefore, the DVI-D interface can be selected to be set on the interface adapter board , and use the DVI-D special cable to complete the connection between the host and the monitor.

[0042] Of course, using the DVI-I interface and using the DVI-I special cable can also meet the design requirements. This embodiment is not limited to the above examples.

[00...

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PUM

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Abstract

The invention discloses a commercial cash register which comprises a host computer and a display, wherein the host computer and the display are respectively internally provided with a port adapter plate, each port adapter plate is provided with a DVI port, each signal wire for connecting the display on a host computer mainboard is connected with the DVI port on the port adapter plate of the host computer, each signal wire for connecting the host computer in the display is connected with the DVI port on the port adapter plate of the display, and the DVI port of the host computer is connected with the DVI port of the display through a DVI cable, therefore, the connecting operation between the host computer and the display can be completed. The technique has simple installation and connection, less working time consumption and high reliability of signal transmission, avoids a plurality of conversion processes of video signals from digital to analogue and then to digital because the digital video signals produced by the host computer are directly transmitted to the display and are displayed, thereby remarkably improving the display effect of an image.

Description

technical field [0001] The invention belongs to the technical field of commercial cash registers, and in particular relates to an interface connection technology for connecting a host computer and a display of a commercial cash register. Background technique [0002] The existing commercial cash register designed with LCD touch display uses a VGA interface for the connection between the host and the display, which requires four cables: a VGA cable, a power cable for +12V DC voltage transmission, and a Touch screen signal cable and a power cable for +5V DC voltage. Among them, the video signal generated by the host is transmitted to the monitor through the VGA cable for display; the +12V power cable is used to output the +12V DC voltage in the host to the monitor to supply power for the monitor; the touch key signal collected through the touch screen is passed through The touch screen signal cable is transmitted to the host to respond to user instructions; the +5V power cabl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G07G1/12
Inventor 战更青
Owner HISENSE INTELLIGENT COMML SYST CO LTD
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