Expanded DGUS touch screen device for realizing touch and control synchronization

Abstract

The invention discloses an expanded DGUS touch screen device for realizing touch and control synchronization, comprising a first MCU circuit and a second MCU circuit which are connected by a parallel communication circuit. The device further comprises a power step-down circuit used to supply power to the above circuits. The first MCU circuit includes a first on-off state detection circuit, a first RS-232 serial data communication interface, and a second RS-232 serial data communication interface. By adopting a double-MCU scheme in the invention, the complexity of MCU software is reduced, the production cost is reduced, and synchronous intelligent regulation of double DGUS touch screens can be realized in an economic and ideal way. Synchronous display and control refreshing is realized on double touch screens. Monitoring work on an industrial site is facilitated greatly. The monitoring intensity of on-site staff is reduced. The device is especially of great significance to equipment reconstruction in the chemical industry in the aspect of environmental pollution by harmful gases.

Description

technical field [0001] The invention discloses an extended DGUS touch screen device for realizing touch synchronization, and relates to the fields of detection technology and touch screen technology. Background technique [0002] DGUS (DWIN Graphical Utilized Software, DWIN Graphical Utilized Software) is a new touch screen application technology. Different from the traditional LCM that controls the display through timing or instructions, the DGUS screen adopts the direct variable drive display method, and all display and operation work based on the pre-set variable configuration files. Using DGUS for development can help users quickly develop full-graphic touch screen man-machine interface, touch screen input method, pop-up menu, slider dragging, incremental adjustment and other touch screen interaction methods and variable icons, artistic words, curve display, time variables, etc. Variable display can be easily completed with the help of PC, which can reduce a lot of prog...

AI Technical Summary

Problems solved by technology

[0003] The industrial production environment is complicated, and the staff hope to be able to monitor the operation of the field equipment in the remote office without changing the control mode of the field equipment. The most common solution is to expand two touch screens with the same serial interface, but the advantages of this solution It is cost-saving and can realize the synchronization of display, but the disadvantage is that it cannot solve the problem that the device receives the command error caused by the two touch screens sending control commands at the same time. One of the touch screens must not be able to realize the control function. This solution is common in the service industry. Computer expansion LCD screen, which is not commonly used in the expansion of touch screen in industrial occasions; another traditional method needs to redevelop the software and hardware parts of the original equipment, which is equivalent to re-creating a system, with a large workload and waste of secondary costs At the same time, there is a technical difficulty in re-development on the original equipment: the original system needs to allocate a certain amount of time to manage and distribute the display and control data flow of the two touch screens, which will affect the operating speed and work efficiency of the original equipment

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