CN108196911B - Method and device for configuring parameters of image display expansion box - Google Patents
Method and device for configuring parameters of image display expansion box Download PDFInfo
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- CN108196911B CN108196911B CN201810001927.5A CN201810001927A CN108196911B CN 108196911 B CN108196911 B CN 108196911B CN 201810001927 A CN201810001927 A CN 201810001927A CN 108196911 B CN108196911 B CN 108196911B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/445—Program loading or initiating
- G06F9/44505—Configuring for program initiating, e.g. using registry, configuration files
- G06F9/4451—User profiles; Roaming
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/60—Software deployment
- G06F8/65—Updates
Abstract
The invention relates to a method and a device for configuring parameters of an image display expansion box, which specifically comprises the following steps: when module image data and corresponding image parameters are transmitted, all the image data and the image parameters are stored, and then the image data and the corresponding image parameters are sequentially called and transmitted to the liquid crystal display module; when the parameter configuration or program data updating and upgrading of the image display expansion box is carried out, image information of two frames before and after the image display expansion box is called in sequence and compared, the position of pixel data which is not changed is recorded, the configuration parameters of the required image display expansion box are filled to the position of the pixel data which is not changed in the next frame of image data, meanwhile, the next frame of image is sent to the image display expansion box, and the parameter configuration or program data updating and upgrading information is sent to the image display expansion box. The invention can fill the parameters to be configured for the expansion box into invalid pixels in the image, and has the advantages of reliable realization, easy operation and low price.
Description
Technical Field
The present invention relates to a method and an apparatus for configuring parameters of an image display expansion box, and more particularly, to a method and an apparatus for configuring parameters of an image display expansion box.
Background
At present, in order to reduce cost and recover early investment, liquid crystal display module manufacturers still use a large number of modules of various interfaces (such as mipi, DP, VbyOne, etc.) produced in a traditional PG box + display extension box manner. The PG box outputs standard image transmission signals (LVDS VESA/JEIDA video signals), and the LVDS signals are converted into various display interface signals through the expansion box and are sent to the module to display images. However, there is a problem in practical use: the program in the expansion box can only work for a certain module, and the video signal corresponding to the characteristic of the program is output and sent to the module for display, if another module is required to display, the program of the expansion box needs to be reconfigured or updated and upgraded before the screen can be clicked. Meanwhile, before some liquid crystal modules work or display some images, the modules need to be configured in a display mode, configuration parameters of the modules are sent to the expansion box through the PG box to be configured, and then the expansion box is configured to the modules. The currently common scheme for configuring the expansion box is that the PG box performs the configuration or update procedure for the expansion box in the blanking area between each frame of image, or performs the configuration or update procedure for the expansion box through I2C or serial lines, where the former scheme can only perform configuration in the frame blanking area, so the duration is short and discontinuous, and the latter scheme has a low transmission rate and low reliability. If a large amount of parameter configuration or a large program update upgrade is required to be performed on the expansion box, the configuration needs a long time to complete, and there is a risk of configuration data errors, which makes the factory production line unacceptable.
Disclosure of Invention
The technical problem of the invention is mainly solved by the following technical scheme:
a method for configuring parameters of an image display expansion box, comprising:
when module image data and corresponding image parameters are transmitted, all the image data and the image parameters are stored, and then the image data and the corresponding image parameters are sequentially called and transmitted to the liquid crystal display module;
when the parameter configuration or program data updating and upgrading of the image display expansion box is carried out, image information of two frames before and after the image display expansion box is called in sequence and compared, the position of pixel data which is not changed is recorded, the configuration parameters of the required image display expansion box are filled to the position of the pixel data which is not changed in the next frame of image data, meanwhile, the next frame of image is sent to the image display expansion box, and the parameter configuration or program data updating and upgrading information is sent to the image display expansion box.
In the method for configuring the parameters of the image display expansion box, when the image parameters are transmitted, the module image data and the corresponding image parameters are firstly transmitted to the image display expansion box to start the image display expansion box, and then the configuration parameters of the expansion box are sent to the image display expansion box.
In the method for configuring the parameters of the image display expansion box, after the image data is called, the RGB timing control signal is generated according to the image RGB timing parameters in the received image parameters, and the image data is matched to the RGB timing according to the control signal to generate the standard RGB image signal, and the standard RGB image signal is converted into the image transmission signal and then sent to the image display expansion box.
In the method for configuring parameters for the image display expansion box, after the image display expansion box receives the configuration parameters for the first time, all internal modules are initialized, so that all internal modules start to work; after receiving the image transmission signal, the image display expansion box firstly stores the image transmission signal, and then converts the image transmission signal into image display data required by the liquid crystal module according to the received image data and the corresponding image RGB time sequence and outputs the image display data to the liquid crystal module.
When the parameter configuration or program data update and upgrade of the image display expansion box is performed, firstly, all parameter information and the number of the parameter information or the program data update and upgrade information which need to be configured are stored, and then, image information comparison is started.
In the above method for configuring parameters of an image display expansion box, the specific process of comparing image information is as follows: sending a configuration starting information signal and the number of configuration parameters to an image display expansion box, comparing an N +1 frame image with an N +2 frame image in advance when an nth frame image is currently sent to the image display expansion box, determining a new pixel presented on the N +2 frame image and a repeated pixel continuously appearing on an N +1 frame when the N +2 frame image is transmitted, recording the coordinate of the new pixel of the N +2 frame image, sending the coordinate of the new pixel of the N +2 frame image simultaneously when the N +1 frame image is sent to the image display expansion box, filling and covering the configuration parameter or program data updating and upgrading information into the original repeated pixel coordinate of the N +2 frame image, and finally repeating the comparison process for the N +2 frame image and the N +3 frame image.
In the method for configuring the parameters of the image display expansion box, after the N +1 th frame image is sent, when the N +2 th frame image is to be sent, the output is switched to the parameter configuration, the configuration parameters are sequentially read and filled in the original repeated pixel coordinates covered on the 2 nd frame, then the output is switched to the image output, the N +2 th frame image is sent to the image display expansion box, and when the N +2 th frame image is sent, the coordinates of the new pixel of the image of the N +3 th frame are sent to the image display expansion box.
In the method for configuring the parameters of the image display expansion box, when the N +3 th frame image is sent, the configuration end information is sent to the image display expansion box, and the comparison is exited when the N +4 th frame image is sent.
When the image display expansion box receives the configuration parameters, the image display expansion box respectively stores the new pixels and the configuration parameters and then continues to receive the image data, and configures the image display expansion box according to the stored configuration parameters.
In the above method for configuring parameters of an image display expansion box, the image display expansion box performs a selection operation according to the type of the configuration parameters in the received configuration start information:
aiming at the configuration of the parameters of the liquid crystal module, reading the parameters, sending the parameters to a module configuration chip, and sending the parameters to the module;
for configuring interface chip parameters, reconfiguring the relevant interface chips of the expansion box;
reconfiguring each module in the FPGA aiming at the configuration of the FPGA parameters;
writing the parameters into an FPGA program storage chip aiming at upgrading and updating the FPGA program parameters;
and after the configuration operation is completed, resetting the image display expansion box and the module and loading the configured parameters.
An apparatus for configuring parameters of an image display expansion box, the apparatus comprising an image generator storing a computer program which, when executed by a processor, performs the steps of any of claims 1 to 10.
Therefore, the invention has the following advantages: 1. the parameter to be configured for the expansion box can be filled in the invalid pixel in the image, and the method is reliable in implementation, easy to operate and low in price. 2.A large number of parameters of the display expansion box can be rapidly configured. 3. The display picture of the expansion box is not influenced. 4. When configuring the parameters, the PG fills the parameters to be configured into the position of pixel data which is not changed in one picture, and sends the image to the extended box side display picture side receiving parameters.
Drawings
FIG. 1 is a schematic diagram of a hardware connection structure according to the present invention.
Fig. 2 is a schematic diagram (without configuration parameters) of transmitting the 0 th frame image in the embodiment of the present invention.
Fig. 3 is a schematic diagram (with configuration parameters) of transmitting the 1 st frame image in the embodiment of the present invention.
Fig. 4 is a schematic diagram (with configuration parameters) of transmitting the 2 nd frame image in the embodiment of the invention.
Fig. 5 is a schematic diagram (with configuration parameters) of transmitting the 3 rd frame image in the embodiment of the present invention.
Fig. 6 is a schematic diagram (without configuration parameters) of transmitting the 4 th frame image in the embodiment of the present invention.
Where D0-D30 represent configuration parameter data and the gray squares represent new image pixels displayed for each frame.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
Example (b):
the following describes the scheme of the invention in detail with reference to specific examples.
The invention relates to a method for configuring parameters of an image display expansion box, which specifically comprises the following steps:
1. after power-on, the upper layer software sends the image data and the image parameters (such as image RGB time sequence, channel number and image transmission bridge configuration parameters) to the ARM chip of the PG box. The chip sends the chip into the module 1 in the FPGA and stores the module 1 in the DDR memory chip 1. And then the upper layer software sends a starting command to the ARM.
And 2, the ARM firstly configures parameters for the image transmission bridge according to the upper configuration parameters so that the image transmission bridge works normally. When the bridge chip works, the configuration parameters sent to the expansion box are converted into control transmission signals through the expansion box expansion bridge chip and then sent to the expansion box through the control transmission line.
And 3, arm controls the FPGA module 1 and the module 2 to take out the image data stored in the DDR1 before and then sends the image data into the module 2, the module 2 generates RGB time sequence control signals (VSYNC, HSYNC and DEN) according to the image RGB time sequence parameters transmitted by the arm, and then under the control signals, the image data is matched with the RGB time sequence from the module 1 to become standard RGB image signals and then sent into the module 4. The module 4 sends the image signal to the image transmission bridge chip, and converts the image signal into an image transmission signal (such as LVDS VESA/JEIDA video signal or high-speed serial signal) and sends the image transmission signal to the expansion box.
4. After receiving the parameters transmitted by the arm, the fgpa module 6 in the expansion box initializes each module in the FPGA, and initializes the module display chip and the configuration chip, so that the module can be normally displayed and controlled. Meanwhile, the arm of the PG box is also configured for the image receiving bridge of the expansion box, so that the image receiving bridge can normally receive image transmission signals. When an image transmission signal is sent into the expansion box through an image transmission line, the image transmission signal is converted into a standard RGB image signal by the receiving bridge chip and sent into the module 7 in the FPGA, the module 7 caches the standard RGB image signal into the external DDR chip 4, and then the module 8 reads out image data from the module 7 and converts the image data into image display data required by the module according to an image RGB time sequence received in the module 7, such as 4lane two-split screen, 8lane four-split screen, left and right split screen and the like. The converted image signal is then sent to the module 9, which converts it into the required module interface modes, such as the mipi signal mode, the DP signal mode, the VbyOne signal, etc. The image is sent into the module to display images after being sent into the module display chip to drive, signal strengthening and impedance matching.
5. When a large amount of parameter configuration or program data update and upgrade are to be performed on the expansion box, the upper layer software issues parameter data to be configured to the arm of the PG box, the arm is stored in the DDR2 through the FPGA module 1, the number of configuration parameters to be sent is recorded, then the arm queries the FPGA module 2 to output an image frame state, when the start of a certain new frame is found (assuming that the frame is the 0 th frame), the expansion box controls the bridge chip, and a configuration start information signal and the number of configuration parameters are sent on a control transmission line, as shown in the following figure (assuming that 30 parameters are configured). Then, when the PG box sends the image data of the 0 th frame, the module 3 reads out the image data of the 1 st frame and the 2 nd frame from the DDR1 and puts the image data of the 1 st frame and the 2 nd frame into the DDR3 (note: the DDR1 in the present invention stores at least the image data of the 3 th frame), and performs comparative analysis to determine which pixels are new effective pixels and which are repeated pixels continuously appearing in the 1 st frame in the image of the 2 nd frame, records the coordinates of the new pixels in the 2 nd frame, and sends the coordinates of the new pixels to the arm. When PG transmits the 1 st frame image, arm simultaneously transmits the new pixel coordinates of the 2 nd frame image to the extension box through the control transmission line. And module 3 continues to read frame 3 image data from DDR3 into DDR3 and continues to compare frame 2 and frame 3 images to determine which coordinates of pixels in frame 3 are newly present and which are present in frame 2. The coordinates of the new pixel of frame 3 are sent to arm as well. When PG starts sending frame 2, module 3 also informs module 5 of the coordinates of the new pixel of frame 2, and module 5 reads out the configuration parameters from DDR2 in sequence to be filled in the original repeated pixel coordinates of frame 2. At this time, when the 2 nd frame is transmitted, the output is switched to the module 5 in the module 4. Similarly, while the 2 nd frame image is being transmitted, the arm also simultaneously transmits the coordinates of the new pixel of the 3 rd frame image on the control transmission line. When the 3 rd frame is sent, the configuration parameters are uploaded on the frame data, and the control transmission line sends the information of configuration end. And when the 4 th frame is transmitted, the module 4 switches back to the normal image transmission.
6. When the expansion box receives the configuration parameters, the FPGA module 6 correspondingly tells the module 7 the coordinate position of the new pixel according to the information sent from the control transmission line, and the module 7 separates the new pixel and the configuration parameters according to the coordinate position of the new pixel and stores the new pixel and the configuration parameters in the DDR4 and the DDR5 respectively. When all the configuration parameters are saved, the module 6 instructs the module 7 to resume normal image receiving operation. When all the configuration parameters are stored in the DDR5, the module 6 operates according to the type (configuration module, configuration interface chip, configuration FPGA, update and upgrade FPGA program) of the relevant configuration parameters in the configuration start information received before. If the module is configured, the module 6 reads the parameters through the module 7, sends the parameters to the module configuration chip and then sends the parameters to the module; if the interface chip is configured, the module 6 reconfigures the interface chip related to the expansion box; if the FPGA is configured, the module 6 reconfigures each module in the FPGA; if the FPGA program is updated, the module 6 writes the parameters into an FPGA program storage chip (such as flash, E2PROM and the like). When the configuration operation is completed, the expansion box and the module are powered on again to reload the configured parameters, thereby completing the configuration.
The invention also provides an apparatus comprising an image generator, which stores a computer program which, when executed by a processor, carries out all the method steps described in the first point.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (11)
1. A method for configuring parameters of an image display expansion box, comprising:
when module image data and corresponding image parameters are transmitted, all the image data and the image parameters are stored, and then the image data and the corresponding image parameters are sequentially called and transmitted to the liquid crystal display module;
when the parameter configuration or program data updating and upgrading of the image display expansion box is carried out, image information of two frames before and after the image display expansion box is called in sequence and compared, the position of pixel data which is not changed is recorded, the configuration parameters of the required image display expansion box are filled to the position of the pixel data which is not changed in the next frame of image data, meanwhile, the next frame of image is sent to the image display expansion box, and the parameter configuration or program data updating and upgrading information is sent to the image display expansion box.
2. The method as claimed in claim 1, wherein the image parameter transmission module transmits the image data and the corresponding image parameter to the image display expansion box to start the image display expansion box, and then sends the configuration parameter of the expansion box to the image display expansion box.
3. The method as claimed in claim 2, wherein after the image data is called, the RGB timing control signal is generated according to the RGB timing parameters in the received image parameters, and the image data is matched with the RGB timing according to the RGB timing control signal to generate a standard RGB image signal, which is converted into an image transmission signal and then sent to the image display expansion box.
4. The method as claimed in claim 3, wherein the image display expansion box receives the image transmission signal, stores the image transmission signal, converts the received image data and the corresponding image RGB timing sequence into image display data required by the liquid crystal module, and outputs the image display data to the liquid crystal module.
5. The method as claimed in claim 1, wherein when configuring parameters of the image display expansion box or updating and upgrading program data, all parameter information and number to be configured or program data updating and upgrading information are stored first, and then image information comparison is started.
6. The method of claim 5, wherein the specific process of comparing the image information is as follows: sending a configuration starting information signal and the number of configuration parameters to an image display expansion box, comparing an N +1 frame image with an N +2 frame image in advance when an nth frame image is currently sent to the image display expansion box, determining a new pixel presented on the N +2 frame image and a repeated pixel continuously appearing on an N +1 frame when the N +2 frame image is transmitted, recording the coordinate of the new pixel of the N +2 frame image, sending the coordinate of the new pixel of the N +2 frame image simultaneously when the N +1 frame image is sent to the image display expansion box, filling and covering the configuration parameter or program data updating and upgrading information into the original repeated pixel coordinate of the N +2 frame image, and finally repeating the comparison process for the N +2 frame image and the N +3 frame image.
7. The method of claim 6, wherein when the N +1 frame image is transmitted, that is, when the N +2 frame image is to be transmitted, the output is switched to the parameter configuration, the configuration parameters are sequentially read out to fill in the pixel coordinates of the original repetition covered on the 2 nd frame, then the output is switched to the image output, and the N +2 frame image is transmitted to the image display expansion box, and when the N +2 frame image is transmitted, the coordinates of the new pixel of the image of the N +3 frame are transmitted to the image display expansion box.
8. The method of claim 7, wherein when the N +3 th frame of image is sent, sending configuration end information to the image display expansion box, and when the N +4 th frame of image is sent, exiting the comparison.
9. The method of claim 6, wherein when the image display expansion box receives the configuration parameters, the image display expansion box stores the new pixels and the configuration parameters, and then receives the image data, and configures the image display expansion box according to the stored configuration parameters.
10. The method of claim 9, wherein the image display expansion box performs a selection operation according to the type of the configuration parameter in the received configuration start message:
aiming at the configuration of the parameters of the liquid crystal module, reading the parameters, sending the parameters to a module configuration chip, and sending the parameters to the module;
for configuring interface chip parameters, reconfiguring the relevant interface chips of the expansion box;
reconfiguring each module in the FPGA aiming at the configuration of the FPGA parameters;
writing the parameters into an FPGA program storage chip aiming at upgrading and updating the FPGA program parameters;
and after the configuration operation is completed, resetting the image display expansion box and the module and loading the configured parameters.
11. An apparatus for configuring parameters of an image display expansion box, the apparatus comprising an image generator storing a computer program which, when executed by a processor, implements the method of any of claims 1 to 10.
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| CN104867470B (en) * | 2015-06-12 | 2017-04-12 | 武汉精测电子技术股份有限公司 | Device and method for embedding geographic and documental information in logic picture based on FPGA |
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