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General display driving device and method for display screen of DCS platform of nuclear power plant

A general-purpose display and drive device technology, applied in the direction of digital output to display equipment, electrical digital data processing, instruments, etc., can solve the problem of inability to display any partition of the display screen, etc., which is conducive to expansion and other applications, and has strong versatility. , the effect of easy maintenance and modification

Active Publication Date: 2022-01-28
NUCLEAR POWER INSTITUTE OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the existing problem of separate design of different partition drivers for different display requirements and the inability to achieve arbitrary partition display of the display screen, the present invention provides a universal display drive device for the display screen of the DCS platform of a nuclear power plant

Method used

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  • General display driving device and method for display screen of DCS platform of nuclear power plant
  • General display driving device and method for display screen of DCS platform of nuclear power plant
  • General display driving device and method for display screen of DCS platform of nuclear power plant

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Experimental program
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Embodiment 1

[0052] This embodiment proposes a universal display drive device for the display screen of the DCS platform of a nuclear power plant. The display drive device of this embodiment is applied to any partition of different display screens on different modules such as DCS platform MAS / AI / DO / DI / DO / COM The driver can be realized through simple configuration, so as to unify the different partition drivers of different displays on each module and reduce the development workload.

[0053] Such as figure 1 As shown, the display driving device of this embodiment mainly includes a state management module, a data processing module, an icon splicing module and a chip driving module.

[0054] Among them, the data processing module realizes the processing of the display information required by each board and converts it into the ASCII code value of the corresponding display character, and then transmits the ASCII code value to the icon splicing module.

[0055] The icon splicing module first ...

Embodiment 2

[0081] In this embodiment, the display screen control chip SSD1306 is taken as an example, the control data communication protocol is the SPI protocol, and the display pixel dot matrix can be controlled to be 64*128 points.

[0082] In this embodiment, a 64*48 pixel dot matrix is ​​used for display, so as to simulate the display effect of partial content and horizontal flipping of the screen.

[0083] The screen display area is 64*48 dot matrix, and the display screen is divided into 32 character grids, each character grid is 8*12 dot matrix, such as Figure 6 shown.

[0084] The screen displays as Figure 7 Shown:

[0085] The first line displays the fault code of the board, and displays "OK" when the board is running normally;

[0086] The remaining three lines display the configuration status, working status and real-time current value of the analog channel during the operation of the current board; when the current value displays "N / A", it means that the channel is not ...

Embodiment 3

[0089] In this embodiment, the display screen control chip SSD1306 is taken as an example, the control data communication protocol is the SPI protocol, and the display pixel dot matrix can be controlled to be 64*128 points.

[0090] In this embodiment, a 48*64 pixel dot matrix is ​​used for display, so as to simulate partial content and the vertical flip display effect of the screen.

[0091] The screen display area is 48*64 dot matrix, and the display screen is divided into 32 character grids, each character grid is 8*12 dot matrix, such as Figure 9 shown. The actual display effect obtained by using the display driving device proposed in Embodiment 1 above is as follows: Figure 10 shown.

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Abstract

The invention discloses a general display driving device and method for a display screen of a DCS platform of a nuclear power plant. The device comprises a state management module, a data processing module, an icon splicing module and a chip driving module; the data processing module converts display information required by each board card into ASCII code values of corresponding display characters; the icon splicing module calls character data of the corresponding display characters from a word stock according to a state output by the state management module and the ASCII code values output by the data processing module, performs data splicing, and then stores the character data with coordinates and an address in a built-in RAM block; any bit in the built-in RAM block can be freely controlled; the state management module performs display screen state management and transmits different data to the chip driving module according to different states; and the chip driving module transmits the data to a control chip according to a set protocol. According to the device and method, unified driving of display contents of different partitions of different display screens of various board cards can be realized through simple configuration.

Description

technical field [0001] The invention belongs to the technical field of nuclear power plant DCS display, and in particular relates to a universal display driving device and method for a display screen of a DCS platform of a nuclear power plant. Background technique [0002] Different modules of the DCS platform of nuclear power plants, such as MAS / AI / DO / DI / DO / COM, etc., in order to display the operating status of their own modules, use different types or resolutions of display screens to display the status and operating parameters according to needs; for this reason, usually different Modules have different display requirements on the display screen, resulting in different screen partitions for different modules, resulting in the need to separately design different partition drivers for different display screens of each module, and the partition design must follow the operable bit width of the storage unit corresponding to the display screen , It is impossible to display any ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/14G06F3/147
CPCG06F3/1407G06F3/147
Inventor 谌志强刘明星张文帅赵洋魏荣超水璇璇徐孝芬陈起汪亨
Owner NUCLEAR POWER INSTITUTE OF CHINA
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