CN108717370B

CN108717370B - Gray image GUI design method for cooling and heating imaging movement startup picture

Info

Publication number: CN108717370B
Application number: CN201810428491.8A
Authority: CN
Inventors: 袁秀阳; 李鹏; 王宇星; 任雪丽
Original assignee: Jinan Hope Wish Photoelectronic Technology Co ltd
Current assignee: Jinan Hope Wish Photoelectronic Technology Co ltd
Priority date: 2018-05-07
Filing date: 2018-05-07
Publication date: 2020-12-11
Anticipated expiration: 2038-05-07
Also published as: CN108717370A

Abstract

The invention relates to a method for designing a gray level image GUI (graphical user interface) of a starting picture of a refrigerating and heating imaging machine core, which comprises the following steps: defining a word stock file and compiling a memory read-write function; the method comprises the steps of modifying position data of video data stored in a memory, and displaying temperature change, time and progress bars on a screen.

Description

Gray image GUI design method for cooling and heating imaging movement startup picture

Technical Field

The invention belongs to the technical field of refrigeration and thermal imaging, and particularly relates to a gray image GUI (graphical user interface) design method for a startup picture of a refrigeration and thermal imaging machine core.

Background

The heating and cooling imaging movement can be normally displayed only by reducing the temperature to a certain numerical value, the movement needs to be started to display the temperature change and the temperature reduction progress in the process, the nios ii CPU has limited processing capacity, the memory allocated to the CPU in the FPGA design is small, and if the existing GUIs such as the CPU/GUI are directly transplanted, the GUI display refreshing is slow, the visual effect is poor, and a large memory is needed. This is a disadvantage of the prior art.

Disclosure of Invention

The invention aims to overcome the problem of the existing GUI migrating to nios ii, and designs a grayscale image GUI for a startup picture of a refrigerating and heating imager core.

The technical scheme of the invention is as follows:

the method for designing the gray image GUI of the starting picture of the refrigerating and heating imager core comprises the following steps:

defining a word stock file and compiling a memory read-write function;

and modifying the position data of the video data stored in the memory to generate the GUI content to be displayed.

Further, the word stock file is an array comprising an array of ASCII characters and a character horizontal start length and a horizontal length.

Further, the step of modifying the location data of the video data stored in the memory, and generating the GUI content to be displayed includes: and modifying the position data of the video data stored in the memory, and displaying the temperature change, the time and the progress bar on the screen.

Further, the implementation process of writing the memory read-write function is as follows:

the method comprises the steps of searching a library file array of a character array according to an input character string by defining an initial address of a character or a character string in an image, writing a corresponding position in a memory into a background pixel value or a foreground pixel value according to elements in the library file array, and displaying the background pixel value or the foreground pixel value on a screen when the image is read;

defining the display initial position and the width and the height of the progress bar in the image, writing the corresponding position in the memory into a first pixel value, writing the corresponding position in the memory into a second pixel value according to the progress requirement, the initial position and the width are unchanged, the length is in accordance with the progress, reading the numerical value of the image in the memory, and transmitting the numerical value to the display to display the progress bar.

Further, the first pixel value and the second pixel value are different.

Further, the step of modifying the position data of the video data stored in the memory and displaying the temperature change, the time and the progress bar on the screen includes the following specific implementation steps:

s6-1: writing a fixed value in the position of the image data stored in the memory through a memset function;

s6-2: reading the current temperature as an initial temperature;

s6-3: calling a GUI main function, displaying fixed characters and numbers, and displaying the bottom color of the progress bar to be completely black;

s6-4: if the read current temperature is higher than the set temperature, calling a GUI main function to display a changed temperature value, a changed time value, calculating a cooling progress according to the current temperature value, an initial temperature value and the set temperature value, and configuring different progress bar white foreground lengths and display percentages;

s6-5: and reading the data at the fixed position in the memory, and sending the data to a display for display.

Further, the step of modifying the location data of the video data stored in the memory and displaying the temperature change, time and progress bar on the screen further includes:

s6-6: if the read current temperature is less than or equal to the set temperature, writing a fixed value in the position of the image data stored in the memory through a memset function; and (5) stopping the GUI display picture after the temperature reduction is finished, and normally displaying by the cooling and heating imaging camera.

Further, the position of the image data stored in the memory is written with a fixed value by the memset function, and the fixed value is consistent with the background color.

The method has the advantages that through the nios ii cpu software program, the word stock file is defined, the memory read-write function is compiled, the data of the position where the video data are stored in the memory are modified, and GUI content needing to be displayed is generated.

In addition, the invention has reliable design principle, simple structure and very wide application prospect.

Therefore, compared with the prior art, the invention has prominent substantive features and remarkable progress, and the beneficial effects of the implementation are also obvious.

Drawings

Fig. 1 is a flowchart of a method for designing a gray-scale image GUI for a startup picture of a cooling/heating camera according to an embodiment of the present invention.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings by way of specific examples, which are illustrative of the present invention and are not limited to the following embodiments.

The embodiment of the invention provides a gray image GUI design method for a starting picture of a refrigerating and heating imaging movement, which comprises the following steps:

defining a word stock file and compiling a memory read-write function;

In this embodiment, the font library file is an array, and includes an ASCII character array, a character horizontal start length, and a horizontal length; the ASCII character array is an array which is fixed longitudinally and changes transversely according to the number of bytes (for example, the character transversely occupies one byte, the character array transversely is 1), each element represents that 8 pixels transversely display background color or foreground color, and the foreground colors of the whole array are combined together to display the character; because each character does not fill the whole character array in the horizontal direction, the starting position of the character foreground in the horizontal direction of the character array and the horizontal size of the character need to be known when the character string is displayed, and the consistent interval between the characters is ensured.

The function of reading and writing the memory can display characters or character strings, and the process is as follows:

by defining the initial address of the character or the character string in the image, searching the library file array of the character array according to the input character string, writing the corresponding position in the memory into a background pixel value or a foreground pixel value (the pixel value is a number from 0 to 255) according to the elements in the library file array, and displaying the background pixel value or the foreground pixel value on a screen when the hardware module reads the image.

The function of reading and writing the memory can also display the progress bar, and the process is as follows:

the method comprises the steps of defining the display initial position and the width and the height of a progress bar in an image, writing the corresponding position in a memory into a first pixel value completely, writing the corresponding position in the memory into a second pixel value according to the progress requirement, wherein the initial position and the width are unchanged, the length is larger than the progress, the corresponding position in the memory is written into the second pixel value, the first pixel value is different from the second pixel value, reading the numerical value of the image in the memory continuously through hardware, and transmitting the numerical value to a display to display the progress bar.

As shown in fig. 1, the specific steps of the nios ii-based GUI design method according to the embodiment of the present invention are as follows:

step 1: assigning a background color to the location where the video data is stored in the memory by a memset function, the value being 128;

step 2: reading the current temperature of the detector as an initial temperature;

and step 3: calling GUI _ DispHarAt by a GUI main function, and writing a character 'Hope-Wish' in a corresponding position of a memory; "TFPA: xxx K" (xxx is the three digit decimal number of the initial temperature); "Time: 00:00: 00"; "0%"; calling the GUI _ RectangleFill, writing 0 in a corresponding address of a memory, and generating a black rectangle with the length of 200 pixels and the width of 25 pixels to represent a progress bar;

and 4, step 4: reading the current temperature of the detector, comparing the current temperature with the set temperature, if the current temperature is higher than the set temperature, executing the step 5, and if not, executing the step 7;

and 5: the GUI main function calls GUI _ DispHarAt to change the "xxx" in the character "TFPA: xxx K" (xxx is the three-digit decimal number of the current temperature) in the corresponding position in the memory; three xx (three xx respectively represent Time, minutes and seconds and are counted by a timer) in the "Time: xx: xx: xx" are provided; "xxx" (xxx represents a number from 0 to 100, and if the high order is 0, the high order is not displayed) in the "xxx%", calling GUI _ RectangleFill, writing 255 in a corresponding address in a memory, generating a white rectangle with the length multiplied by 200 pixels according to a cooling proportion and the width of 25 pixels, and representing a progress bar;

step 6: reading the data of the fixed position in the memory by the FPGA hardware program, sending the data to the display for displaying, and executing the step 4 again;

and 7: a fixed value is written to the location of the memory storing image data by the memset function, and this value coincides with the background color.

And 8: and (5) stopping the GUI display picture after the temperature reduction is finished, and normally displaying by the cooling and heating imaging camera.

The above disclosure is only for the preferred embodiments of the present invention, but the present invention is not limited thereto, and any non-inventive changes that can be made by those skilled in the art and several modifications and amendments made without departing from the principle of the present invention shall fall within the protection scope of the present invention.

Claims

1. The method for designing the gray image GUI of the starting picture of the refrigerating and heating imager core is characterized by comprising the following steps of:

defining a word stock file and compiling a memory read-write function;

modifying the position data of the video data stored in the memory to generate GUI content to be displayed; the step of modifying the location data of the stored video data in the memory, generating GUI content to be displayed includes: modifying the position data of the video data stored in the memory, and displaying temperature change, time and progress bars on a screen;

the step of modifying the position data of the video data stored in the memory and displaying the temperature change, the time and the progress bar on the screen comprises the following specific implementation steps:

s6-2: reading the current temperature as an initial temperature;

2. The method according to claim 1, wherein the library file is an array including an ASCII character array and a character horizontal start length and a horizontal length.

3. The method for designing the gray image GUI for the cooling/heating imager core startup picture according to claim 2, wherein writing the memory read/write function is implemented as follows:

4. The method according to claim 3, wherein the first pixel value and the second pixel value are different from each other.

5. The method according to claim 4, wherein said step modifies the position data of the video data stored in the memory and displays the temperature change, time and progress bar on the screen, and further comprises:

6. The method for designing a grayscale image GUI of a cooling/heating imager core startup picture according to claim 5, wherein the position of the memory storage image data is written with a fixed value by the memset function, and the fixed value is consistent with the background color.