CN102902504A - Connection system and connection method for computer base map signal of embedded image control platform - Google Patents
Connection system and connection method for computer base map signal of embedded image control platform Download PDFInfo
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- CN102902504A CN102902504A CN201210382791XA CN201210382791A CN102902504A CN 102902504 A CN102902504 A CN 102902504A CN 201210382791X A CN201210382791X A CN 201210382791XA CN 201210382791 A CN201210382791 A CN 201210382791A CN 102902504 A CN102902504 A CN 102902504A
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Abstract
The invention discloses a connection system and a connection method for a computer base map signal of an embedded image control platform. The connection system comprises the embedded image control platform, a network access server, a command bus and a data bus, wherein the embedded image control platform is in charge of accessing a signal source and providing multiple output signals, and the network access server adopts an industrial personal computer platform of a PC (personal computer) framework, is in charge of loading and running rich user applications and comprises all network-related interactive services, wherein two channels are erected between the embedded image control platform and the network access server; the command bus is in charge of sending a control command to the embedded image control platform through the network access server and receiving a feedback from the embedded image control platform; and the data bus is a high-speed image output channel for outputting image signals generated in the network access server to the embedded image control platform in a user-defined format in real time. According to the connection system and the connection method, the PC framework is combined with an embedded framework, and integrating the advantages of two control platforms.
Description
Technical field
The present invention relates to a kind of giant-screen control system, relate in particular to a kind of connected system of embedded image control platform computing machine base map signal.In addition, the invention still further relates to a kind of method of attachment of embedded image control platform computing machine base map signal.
Background technology
In large screen display control system field, the function of control end is more and more enriched powerful, and develops towards the angle of industry segmentation, field segmentation, application segmentation.How taking full advantage of the functional performance of control system, improve more efficiently the utilization rate of large screen display system, provide better user to experience and the lower equipment of energy consumption, is target and the direction that industry is generally pursued.
In the giant-screen control system, the control platform that long-term existence two classes are different:
1. based on the control platform of embedded system
The characteristics of this mode are, design is with integrated circuit (IC) chip and FPGA(Field-Programmable Gate Array, it is field programmable gate array, it is the product that further develops on the basis of the programming devices such as PAL, GAL, CPLD) for the hardware structure on basis, multi-disc image pick-up card and output card are accessed in the backplane bus side by side.Under the driving of embedded system or Single Chip Microcomputer (SCM) system, realize that the picture signal that will collect outputs in the corresponding output channel by assigned address.
The advantage of this mode has been to adopt succinct hardware structure, and cost is lower, makes the main application of large screen system---reading and showing of signal source, under the powerful process chip of performance drives, can efficiently finish fast.
The drawback of this mode is this system architecture based on embedded or single-chip microcomputer, can't satisfy in higher level other interaction demands of user.For example, this control platform can't move the software of framework complexity, and then can't carry out access to netwoks and control operation.And the environment that giant-screen uses exactly mostly is the workbench of multiple person cooperational formula, and this drawback has just weakened the availability of large screen system widely.
2. based on the control platform of conventional P C framework
The characteristics of this mode are, have adopted conventional P C framework, take arithmetical unit, processor as core, and the relatively independent functional module that complete industrial computer system is used as in collection and the output of image.Can finish the integrated circuit board of image acquisition, multi-screen output by special configuration, make the control platform possess the function same with embedded system control platform.
The advantage of this mode is that the control platform of PC framework has powerful software service access capability.Based on this platform, the demand of multiplicity of subscriber can greatly be met by disposing the correlation function module.
The drawback of this mode is that than embedded system the PC framework is more complicated, and is more to the restriction of input-output device, and then has certain gap at the aspect such as collection signal quantity, harmless display stream medium frame per second and embedded platform.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of connected system of embedded image control platform computing machine base map signal, and the PC framework is combined with embedded architecture, has concentrated two kinds of control platforms advantage separately.For this reason, the present invention also provides a kind of method of attachment of embedded image control platform computing machine base map signal.
In order to solve the problems of the technologies described above, the invention provides a kind of connected system of embedded image control platform computing machine base map signal, this system comprises:
Embedded image control platform is responsible for the access signal source and multipath output signals is provided;
Network access server, the industrial computer platform of employing PC framework is responsible for loading the abundant user's application of operation, comprises the interactive service that all are relevant with network;
Set up two passes between described embedded image control platform and the described network access server: command line and data bus; Described command line is responsible for sending control command to embedded image control platform by network access server, and receives the feedback of this embedded image control platform; Described data bus is the high speed image output channel, and it transmits service for network access server provides high speed image, and all picture signals that generate in network access server are outputed on the embedded image control platform in real time with self-defining form.
Described command line is responsible for network access server and is sent control command to embedded image control platform, and this control command comprises input channel instruction, the instruction of adjustment video parameter, the image demonstration request of opening.
Described network access server is responsible for loading the abundant user of operation and is used, and this user uses from deployed environment and is divided into local the application and network application; The local application is the application that directly is deployed in the network access module; Network application is to be deployed in network access server other computer systems in addition, with the form of network packet, image and data is sent in the network access module, is presented at the application of large screen system.
Described embedded image control platform comprises acquisition module, output module, image processing module; Described acquisition module is used for the view data of identification input channel, sends it in the image processing module, and products for further is processed; Described output module is used for that the data communication device of output channel is crossed data cable and outputs to display device; Described image processing module reaches the data that transmit into by the high speed image output channel for the treatment of the data from acquisition module, and treatment types comprises location, seizure, adjusts signal quality.
Described network access server comprises image processing module, network access module; Described network access module is responsible for dispatching extraneous input, analyzes input content, and input content is distributed in the described image processing module; Described image processing module is used for receiving the extraneous input content from network access module, judge showing request, legal demonstration request is carried out calculating and the splicing of target location, transmit display command and data in embedded image control platform, the state of Real-time Obtaining embedded image control platform, and the self-adaptation output resolution ratio is provided.
In addition, the present invention also provides a kind of method of attachment of embedded image control platform computing machine base map signal, comprises the steps:
(1) system initialization: at first embedded image control platform carries out initialization; Then embedded image control platform reads output pixel value from output module, it is passed to network access server, network access server is adjusted the output resolution ratio of display chip according to the pixel value that receives, the output pixel that makes itself and embedded image control platform is complementary; Then network access server passes to embedded image control platform with the output of display chip by the high speed image output channel, after embedded image control platform receives data, this view data is sent in the output channel, replaces original acquiescence base map output picture;
(2) capture when an extraneous input signal is embedded into formula image control platform, at first ask the judgement of legitimacy; When outer input signal not by the judgement of legitimacy, then abandon; Passed through the judgement of legitimacy when input signal, then be converted into a legal demonstration request, this shows that request is received by the network access server image processing module, and this module is called the corresponding interface in the display chip by the content of request, at the target location synthetic image;
(3) network access server is transferred to embedded image control platform with the image that generates by the high speed image output channel subsequently, by embedded image control platform the picture material that receives is sent in the output channel, finishes the to external world procedure for displaying of input signal.
In the step (1), described embedded image control platform carries out initialization, this initialization procedure comprises whether platform self check acquisition module, output module start normally, the acquiescence base map that output module begins embedded image is controlled platform is sent in the output channel, acquisition module begins to detect in input channel the signal source of whether existence activity, if exist, then detect the attribute (comprising signal resolution, signal frequency, signal area etc.) of this signal source, carry out the preparation of collection.
In the step (1), described display chip belongs to display driver chip, itself has the ability that generates the high resolution output picture, this chip and embedded image control platform between carry out data communication after, obtain the output pixel of embedded image control platform, next according to this output pixel value, adjust self display resolution, the output that makes itself and embedded image control platform is complementary, thereby accomplishes the resolution self-adaptation.
In the step (2), the judgement of described request legitimacy mainly is divided into logic legitimacy and pixel legitimacy by the foundation of judging; This logic validity judgement comprises judges whether the content that this input signal is asked is thought meaningful by system; This pixel validity judgement occurs in after the logic validity judgement, refers to for a significant request, whether system can display it.Described logic validity judgement comprises: judge whether input channel exists, whether user's application of demonstration is correctly installed and is had authority to call; Described pixel validity judgement comprises: judge that target area that request shows whether can be by the detection of ColorKey, whether within the scope that system's output resolution ratio is contained.The detection of described ColorKey specifically comprises the steps:
At first, the target location of embedded image control detection of platform input signal namely in this input signal, extracts image display position information;
Then, after obtaining positional information, embedded image control platform at first detects the present show state in this position, namely judges whether to exist ColorKey to cover, and the result of detection divides following three kinds of situations:
One, this band of position is not covered by ColorKey at present;
Two, this band of position is covered by ColorKey fully at present;
Three, at present this band of position some covered by ColorKey;
In the first situation, owing on the target area, not detecting the existence of ColorKey, can judge that then the target area is illegal, give up this and show request; In the second situation, because the target area is covered by the ColorKey gamut, can judge that then the target area gamut can show, continue to carry out the operation that shows image; In the third situation, need to calculate the position that is covered by ColorKey in the target area, and be updated to new target area according to the result who detects, continue to carry out the operation that shows image.
Beneficial effect of the present invention is:
1. the present invention is combined the PC framework with embedded architecture, has concentrated two kinds of control platforms advantage separately.The input and output of image are all finished at embedded image control platform, with relative isolation of network access server of adopting the PC framework, thereby have guaranteed a large amount of signal source windows are carried out high efficiency and the security of Control and Schedule.The network access server module provides the PC framework hardware and software platform of standard, makes the sector application of mass customization and the access of software service on the giant-screen control system become possibility.
2. embedded image control platform adopts the platform data switching technology of user-defined format, so that can obtain the PC platform output picture of equal resolution.The data of transmitting in the high speed image output channel come from the customization display chip in the network access server.Its bus in embedded image control platform can accurately be docked, and has the adaptive ability of output resolution ratio.This chip belongs to display driver chip, itself has the ability that generates the high resolution output picture.This chip and " embedded image control platform " between carry out data communication after, obtain the output pixel of " embedded image control platform ", next according to this output pixel value, adjust self display resolution, its output with " embedded image control platform " is complementary, thereby accomplishes the resolution self-adaptation.Change in case detect the output resolution ratio of embedded image control platform, the high speed image output channel possesses the ability that improves at any time self transmission display resolution.
Adopt in the industry at present the case of embedded image control platform, the high-resolution video cards of third party that use directly access in the embedded image control platform more, the output resolution ratio that can't guarantee like this embedded image control platform is identical with the transmission resolution of high score video card, the situation that image stretch or compression namely can occur has been lost the powerful display capabilities of large screen display system itself widely.
3. utilize the ColorKey technology so that the signal source window of the application window on the PC framework and embedded platform can be on vertical dimension mutual additive fusion.The ColorKey technology is the technology of extensively being used in computer video processing and image demonstration.In the embedded image of the present invention control console module, for the seamless stack of graphic picture that further generates with network access server, in processing, image used the ColorKey technology.(processing procedure is seen flow chart description) so that the output content of the image content in the network access server and embedded platform can superpose mutually, arranged in this way flexibly, experiences for the user provides with the identical user of all-in-one.
4. but the embedded image of independent operating is controlled platform, for whole control system provides high security.From integral body, loaded a large amount of third party's application and the network access module of network service, in most cases, be the source that causes system problem.And adopt this framework, and can make the control platform in the situation that network access module temporarily loses response, still the input and output of image kept normal operation.In some industry field of video monitoring higher to security requirement (such as the energy, electric power), or the long-range demonstration field higher to requirement of real-time (such as finance, traffic), this framework can guarantee the availability of system under abnormal conditions to the full extent.
5. system architecture described in the invention is so that two parts of control system all can upgrade and safeguard easily.On the magnitude of image acquisition and output, can be undertaken by the spare and accessory parts of standalone upgrade, replacing embedded image control platform; On network access server host performance and network service access capability, can finish by each component configuration of changing network access server.
Description of drawings
Fig. 1 is the structural representation of system of the present invention;
Fig. 2 is the process flow diagram that ColorKey detects in the inventive method;
Fig. 3 is the overall flow figure of the inventive method.
Embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.
As shown in Figure 1, the connected system of a kind of embedded image control of the present invention platform computing machine base map signal mainly is divided into two modules:
1. embedded image control platform is responsible for the access signal source, and multipath output signals is provided.Described embedded image control platform comprises acquisition module, output module, image processing module; Described acquisition module is used for the view data of identification input channel, sends it in the image processing module, and products for further is processed; Described output module is used for that the data communication device of output channel is crossed data cable and outputs to display device; Described image processing module reaches the data that transmit into by the high speed image output channel for the treatment of the data from acquisition module, and treatment types comprises location, seizure, adjusts signal quality.
2. network access server for adopting the industrial computer platform of PC framework, is responsible for loading the abundant user of operation and is used, and comprises the interactive service that all are relevant with network.These users use, and divide from deployed environment, can be divided into local the application and network application.The local application is the application that directly is deployed in the network access module.In the industries such as traffic, water treatment, large screen system usually needs to show some high-resolution Business flows and process monitoring picture.Network application is to be deployed in network access server other computer systems in addition, with the form of network packet, image and data is sent in the network access module, is presented at the application of large screen system.Industries such as finance, electric power generally adopts the mode of long-range demonstration to show in real time the contents such as all kinds of Real-time Data Models on large screen system.Described network access server comprises image processing module, network access module; Described network access module is responsible for dispatching extraneous input, analyzes input content, and input content is distributed in the described image processing module; Described image processing module is used for receiving the extraneous input content from network access module, judge showing request, legal demonstration request is carried out calculating and the splicing of target location, transmit display command and data in embedded image control platform, the state of Real-time Obtaining embedded image control platform, and the self-adaptation output resolution ratio is provided.
Set up two passes between above-mentioned two modules (embedded image control platform and network access server), the command line on the left side is responsible for sending control command (or being called steering order) to embedded image control platform by network access server, and receives the feedback of this embedded image control platform.Control command comprises input channel instruction, the instruction of adjustment video parameter, the image demonstration request etc. of opening; The high speed image output channel on the right is data bus, and it transmits service for network access server provides high speed image, and all picture signals that generate in network access server are outputed on the embedded image control platform in real time with self-defining form.
Fig. 2 is the process flow diagram that ColorKey detects in the inventive method, and Fig. 2 has described the process of image call and demonstration.As shown in Figure 2, ColorKey detects and comprises the steps:
At first, control platform by the network access server sending controling instruction to embedded image; Embedded image control platform has received a steering order that comprises image display operations, has namely initiated a request that image shows.
Then, embedded image control detection of platform target location namely in this steering order, extracts image display position information.
Then, after obtaining positional information, embedded image control platform at first detects the present show state in this position, namely judges whether to exist ColorKey to cover.The result who detects divides three kinds of situations:
One, this band of position is not covered by ColorKey at present;
Two, this band of position is covered by ColorKey fully at present;
Three, at present this band of position some covered by ColorKey.
In the first situation, owing on the target area, not detecting the existence of ColorKey, can judge that then the target area is illegal, give up this and show request (being " the rejecting request " among Fig. 2); In the second situation, because the target area is covered by the ColorKey gamut, can judge that then the target area gamut can show, continue to carry out the operation that shows image; In the third situation, need to calculate the position (being " the calculating output area " among Fig. 2) that is covered by ColorKey in the target area, and be updated to new target area according to the result who detects, continue to carry out the operation that shows image.
Fig. 3 is the overall flow figure of the method for attachment of a kind of embedded image control of the present invention platform computing machine base map signal.Be divided into two and start the source: " system's startup " and " extraneous input signal ".The below introduces respectively:
1. take " system's startup " as starting point, the descriptive system initialization procedure.
1) at first embedded image control platform carries out initialization.Initialization procedure comprises whether platform self check acquisition module, output module start normally, the acquiescence base map that output module begins embedded image is controlled platform is sent in the output channel, acquisition module begins to detect in input channel the signal source of whether existence activity, if exist, then detect its attribute (comprising signal resolution, signal frequency, signal area etc.), carry out the preparation of collection.
2) embedded image control platform reads output pixel value from output module, and it is passed to network access server.Network access server is received this notice, determines that embedded image control platform normally starts.And adjust the output resolution ratio of display chip according to the pixel value that receives, the output pixel that makes itself and embedded image control platform is complementary.This display chip belongs to display driver chip, itself has the ability that generates the high resolution output picture.This chip and embedded image control platform between carry out data communication after, obtain the output pixel of embedded image control platform, next according to this output pixel value, adjust self display resolution, the output that makes itself and embedded image control platform is complementary, thereby accomplishes the resolution self-adaptation.
3) network access server passes to embedded image control platform with the output of display chip by the high speed image output channel.After the latter receives data, this view data is sent in the output channel, replaces original acquiescence base map output picture.So far, initialization procedure finishes.
2. take " extraneous input signal " as starting point, descriptive system receives the processing procedure of extraneous input.
1) captures when an extraneous input signal is embedded into formula image control platform, at first ask the judgement of legitimacy.This deterministic process more complicated mainly can be divided into logic legitimacy and pixel legitimacy by the foundation of judging.The logic validity judgement comprises judges whether the content that this input signal is asked is thought meaningful by system.For example, whether input channel exists, and whether user's application of demonstration is correctly installed and had authority to call etc.The pixel validity judgement occurs in after the logic validity judgement, refers to for a significant request, whether system can display it.Whether for example, whether the target area that request shows can be by the detection of ColorKey, within the scope that system's output resolution ratio is contained etc.
2) when input signal not by the judgement of legitimacy, then abandon; Pass through the judgement of legitimacy when input signal, then be converted into a legal demonstration request.This shows that request is received by the network access server image processing module.This module is called the corresponding interface in the display chip by the content of request, at the target location synthetic image.
3) network access server is transferred to embedded image control platform with the image that generates by the high speed image output channel subsequently.By embedded image control platform the picture material that receives is sent in the output channel, finishes the to external world procedure for displaying of input signal.
Claims (12)
1. the connected system of an embedded image control platform computing machine base map signal is characterized in that, this system comprises:
Embedded image control platform is responsible for the access signal source and multipath output signals is provided;
Network access server, the industrial computer platform of employing PC framework is responsible for loading the abundant user's application of operation, comprises the interactive service that all are relevant with network;
Set up two passes between described embedded image control platform and the described network access server: command line and data bus; Described command line is responsible for sending control command to embedded image control platform by network access server, and receives the feedback of this embedded image control platform; Described data bus is the high speed image output channel, and it transmits service for network access server provides high speed image, and all picture signals that generate in network access server are outputed on the embedded image control platform in real time with self-defining form.
2. the system as claimed in claim 1, it is characterized in that, described command line is responsible for network access server and is sent control command to embedded image control platform, and this control command comprises input channel instruction, the instruction of adjustment video parameter, the image demonstration request of opening.
3. the system as claimed in claim 1 is characterized in that, described network access server is responsible for loading the abundant user of operation and is used, and this user uses from deployed environment and is divided into local the application and network application; The local application is the application that directly is deployed in the network access module; Network application is to be deployed in network access server other computer systems in addition, with the form of network packet, image and data is sent in the network access module, is presented at the application of large screen system.
4. the system as claimed in claim 1 is characterized in that, described embedded image control platform comprises acquisition module, output module, image processing module; Described acquisition module is used for the view data of identification input channel, sends it in the image processing module, and products for further is processed; Described output module is used for that the data communication device of output channel is crossed data cable and outputs to display device; Described image processing module reaches the data that transmit into by the high speed image output channel for the treatment of the data from acquisition module, and treatment types comprises location, seizure, adjusts signal quality.
5. the system as claimed in claim 1 is characterized in that, described network access server comprises image processing module, network access module; Described network access module is responsible for dispatching extraneous input, analyzes input content, and input content is distributed in the described image processing module; Described image processing module is used for receiving the extraneous input content from network access module, judge showing request, legal demonstration request is carried out calculating and the splicing of target location, transmit display command and data in embedded image control platform, the state of Real-time Obtaining embedded image control platform, and the self-adaptation output resolution ratio is provided.
6. the method for attachment of an embedded image control platform computing machine base map signal is characterized in that, comprises the steps:
(1) system initialization: at first embedded image control platform carries out initialization; Then embedded image control platform reads output pixel value from output module, it is passed to network access server, network access server is adjusted the output resolution ratio of display chip according to the pixel value that receives, the output pixel that makes itself and embedded image control platform is complementary; Then network access server passes to embedded image control platform with the output of display chip by the high speed image output channel, after embedded image control platform receives data, this view data is sent in the output channel, replaces original acquiescence base map output picture;
(2) capture when an extraneous input signal is embedded into formula image control platform, at first ask the judgement of legitimacy; When outer input signal not by the judgement of legitimacy, then abandon; Passed through the judgement of legitimacy when input signal, then be converted into a legal demonstration request, this shows that request is received by the network access server image processing module, and this module is called the corresponding interface in the display chip by the content of request, at the target location synthetic image;
(3) network access server is transferred to embedded image control platform with the image that generates by the high speed image output channel subsequently, by embedded image control platform the picture material that receives is sent in the output channel, finishes the to external world procedure for displaying of input signal.
7. method as claimed in claim 6, it is characterized in that, in the step (1), described embedded image control platform carries out initialization, and this initialization procedure comprises whether platform self check acquisition module, output module start normally, and the acquiescence base map that output module begins embedded image is controlled platform is sent in the output channel, acquisition module begins to detect in input channel the signal source of whether existence activity, if exist, then detect the attribute of this signal source, carry out the preparation of collection.
8. method as claimed in claim 7 is characterized in that, the attribute of described signal source comprises signal resolution, signal frequency, signal area.
9. method as claimed in claim 6, it is characterized in that, in the step (1), described display chip belongs to display driver chip, itself has the ability that generates the high resolution output picture, this chip and embedded image control platform between carry out data communication after, obtain the output pixel of embedded image control platform, next according to this output pixel value, adjust self display resolution, the output that makes itself and embedded image control platform is complementary, thereby accomplishes the resolution self-adaptation.
10. method as claimed in claim 6 is characterized in that, in the step (2), the judgement of described request legitimacy mainly is divided into logic legitimacy and pixel legitimacy by the foundation of judging; This logic validity judgement comprises judges whether the content that this input signal is asked is thought meaningful by system; This pixel validity judgement occurs in after the logic validity judgement, refers to for a significant request, whether system can display it.
11. method as claimed in claim 10 is characterized in that, described logic validity judgement comprises: judge whether input channel exists, whether user's application of demonstration is correctly installed and is had authority to call; Described pixel validity judgement comprises: judge that target area that request shows whether can be by the detection of ColorKey, whether within the scope that system's output resolution ratio is contained.
12. method as claimed in claim 11 is characterized in that, the detection of described ColorKey specifically comprises the steps:
At first, the target location of embedded image control detection of platform input signal namely in this input signal, extracts image display position information;
Then, after obtaining positional information, embedded image control platform at first detects the present show state in this position, namely judges whether to exist ColorKey to cover, and the result of detection divides following three kinds of situations:
One, this band of position is not covered by ColorKey at present;
Two, this band of position is covered by ColorKey fully at present;
Three, at present this band of position some covered by ColorKey;
In the first situation, owing on the target area, not detecting the existence of ColorKey, can judge that then the target area is illegal, give up this and show request; In the second situation, because the target area is covered by the ColorKey gamut, can judge that then the target area gamut can show, continue to carry out the operation that shows image; In the third situation, need to calculate the position that is covered by ColorKey in the target area, and be updated to new target area according to the result who detects, continue to carry out the operation that shows image.
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| CN109478314B (en) * | 2016-06-14 | 2023-07-25 | 雷蛇(亚太)私人有限公司 | Image processing apparatus, method of controlling image processing apparatus, and computer-readable medium |
| CN108259829A (en) * | 2018-01-24 | 2018-07-06 | 中国航空工业集团公司洛阳电光设备研究所 | A kind of imaging processing device and display equipment |
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| CN102902504B (en) | 2015-06-10 |
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