CN205016211U - Led large screen information display system - Google Patents
Led large screen information display system Download PDFInfo
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- CN205016211U CN205016211U CN201520761075.1U CN201520761075U CN205016211U CN 205016211 U CN205016211 U CN 205016211U CN 201520761075 U CN201520761075 U CN 201520761075U CN 205016211 U CN205016211 U CN 205016211U
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- central processor
- circuit
- display system
- processor circuit
- screen information
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Abstract
The utility model provides a LED large screen information display system, includes a central processing unit circuit, the 2nd central processing unit circuit, ram, drive circuit and LED array, a central processing unit circuit is suitable for communicates by letter with the host computer to be responsible for control entire system's initialization and animation display mode, the 2nd central processing unit circuit is suitable for control display frame's dynamic refresh, ram is suitable for the storage to wait the information data who shows, drive circuit is suitable for rightly the LED array drives, the LED array is suitable for drive circuit's drive shows down information data. The utility model provides a LED large screen information display system adopts two synergistic working methods of CPU, has reduced the running cost of system.
Description
Technical field
The utility model relates to technical field of information display, particularly a kind of LED big screen information display system.
Background technology
Infosystem is by computer hardware, network and communication apparatus, computer software, information resources, the human-machine system for the purpose of processing information flow of information user and rules and regulations composition, its main task is the information management maximally utilising modern computer and network communications technology reinforcement enterprise, by the manpower had enterprise, material resources, financial resources, equipment, correct data are set up in investigating of the resources such as technology, processing processes and is compiled into various information material and is supplied to managerial personnel in time, to carry out correct decision-making, improve constantly management level and the economic benefit of enterprise.
In order to the various data (user data, system data, business datum etc.) of infosystem process are presented in face of people intuitively, require that display system can issue with multimedia form the information of sharing, and can with different patterns, according to zoning display situation, text, form and video image information.The control circuit of the LED large screen display system of current extensive application, mostly adopts the plate based on PC bus and coordinates the original hardware resource of PC to complete the display refreshing of screen-picture, display driver and data communication.This kind of design make use of the powerful software and hardware resources of PC, makes system development relatively easy.But because it can not add the operating cost of system by offline operation, and during owing to running, PC can not away from displaying scene, also for system installation brings inconvenience.
Utility model content
To be solved in the utility model is the problem that existing LED large screen display system operating cost is high, install inconvenience.
For solving the problem, the utility model provides a kind of LED big screen information display system, comprises the first central processor circuit, the second central processor circuit, random access memory, driving circuit and LED array; Described first central processor circuit is suitable for communicating with host computer, and is responsible for the initialization and the animation display mode that control whole system; Described second central processor circuit is suitable for the dynamic refresh controlling display frame; Described random access memory is suitable for storing information data to be shown; Described driving circuit is suitable for driving described LED array; Described LED array is suitable under the driving of described driving circuit, show described information data.
Optionally, described random access memory is dual-port random access memory.
Optionally, described first central processor circuit is communicated with host computer by serial interface chip.
Optionally, described first central processor circuit is 8031 single chip circuits.
Optionally, described second central processor circuit is PIC16C57 single chip circuit.
Compared with prior art, the utility model has the following advantages:
The LED big screen information display system that the utility model provides, adopt the working method that dual processors is collaborative, be responsible for carrying out communicating with host computer by the first central processor circuit and control initialization and the animation display mode of whole system, be responsible for by the second central processor circuit the dynamic refresh controlling display frame, make display system can depart from PC independent operating to reduce the cost of system.Owing to having departed from PC when running, thus also facilitate the installation of system.
Accompanying drawing explanation
Fig. 1 is the structural representation of the LED big screen information display system of the utility model embodiment;
Fig. 2 is the structural representation of the first central processor circuit of the utility model embodiment;
Fig. 3 is the structural representation of the random access memory of the utility model embodiment.
Embodiment
Below in conjunction with embodiment and accompanying drawing, to the detailed description further of the utility model do, but embodiment of the present utility model is not limited thereto.
Fig. 1 is the structural representation of the LED big screen information display system of the utility model embodiment, and described LED big screen information display system comprises the first central processor circuit 11, second central processor circuit 12, random access memory 13, driving circuit 14 and LED array 15.
Particularly, described first central processor circuit 11 is connected with described second central processor circuit 12 and described random access memory 13, is suitable for communicating with host computer, and is responsible for the initialization and the animation display mode that control whole system.In the present embodiment, described first central processor circuit 11 is 8031 single chip circuits.Fig. 2 is the structural representation of described first central processor circuit 11; CPU adopts 8031 single-chip microcomputers; extending out a slice PSD311 as program storage and mouth line expansion 74LS245 is bus driver; its effect improves the driving force of bus and host CPU circuit and Bus isolation, protects host CPU when the miscellaneous part in bus breaks down.Described first central processor circuit 11 is communicated with host computer by serial interface chip, such as, can adopt the serial interface chip 202E serial communication five line connected modes of MAXM company.Host CPU circuit is the core of whole system, the long-time unavoidable impact not being subject to external interference that runs without interruption.Therefore, add watchdog circuit in the circuit of this embodiment, the antijamming capability of intensifier circuit, improve the reliability of host CPU circuit long-time running.
Described second central processor circuit 12 is connected with described random access memory 13 and described driving circuit 14, is suitable for the dynamic refresh controlling display frame.In the present embodiment, described second central processor circuit 12 is PIC16C57 single chip circuit.Information data to be shown is write described random access memory 13, PIC16C57 single chip circuit by current time screen image structure by address/data bus and is responsible for the information data in described random access memory 13 to be mapped on described LED array 15 by described the one the second central processor circuit 11.Those skilled in the art know the peripheral circuit of PIC16C57 single-chip microcomputer, do not repeat them here.
Described random access memory 13 is suitable for storing information data to be shown.In the present embodiment, described random access memory 13 is dual-port random access memory.Fig. 3 is the structural representation of described random access memory 13, and memory array is made up of the non-volatile RAM of 8 32K bytes, has the storage space of 256 bytes for showing the storage of data and display information.Display data are the core image of this screen displaying contents, and display information is the information such as display mode, translational speed, the residence time of this screen.Adopt non-volatile RAM to preserve display data, system PC can be made to run, even if having a power failure once in a while also can not cause loss of data.
Described driving circuit 14 is connected with described central processor circuit 12 and described LED array 15, is suitable for driving described LED array 15, and described LED array 15 is suitable for showing described information data under the driving of described driving circuit 14.Described driving circuit 14 is identical with prior art with the structure of described LED array 15, does not repeat them here.
The above; it is only preferred embodiment of the present utility model; not do any pro forma restriction to the utility model, every any simple modification, equivalent variations done above embodiment according to technical spirit of the present utility model, all falls within protection domain of the present utility model.
Claims (5)
1. a LED big screen information display system, is characterized in that, comprises the first central processor circuit, the second central processor circuit, random access memory, driving circuit and LED array;
Described first central processor circuit is suitable for communicating with host computer, and is responsible for the initialization and the animation display mode that control whole system;
Described second central processor circuit is suitable for the dynamic refresh controlling display frame;
Described random access memory is suitable for storing information data to be shown;
Described driving circuit is suitable for driving described LED array;
Described LED array is suitable under the driving of described driving circuit, show described information data.
2. LED big screen information display system according to claim 1, is characterized in that, described random access memory is dual-port random access memory.
3. LED big screen information display system according to claim 1, is characterized in that, described first central processor circuit is communicated with host computer by serial interface chip.
4. LED big screen information display system according to claim 1, is characterized in that, described first central processor circuit is 8031 single chip circuits.
5. LED big screen information display system according to claim 1, is characterized in that, described second central processor circuit is PIC16C57 single chip circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520761075.1U CN205016211U (en) | 2015-09-29 | 2015-09-29 | Led large screen information display system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520761075.1U CN205016211U (en) | 2015-09-29 | 2015-09-29 | Led large screen information display system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205016211U true CN205016211U (en) | 2016-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520761075.1U Expired - Fee Related CN205016211U (en) | 2015-09-29 | 2015-09-29 | Led large screen information display system |
Country Status (1)
| Country | Link |
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| CN (1) | CN205016211U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105260150A (en) * | 2015-09-29 | 2016-01-20 | 成都贝发信息技术有限公司 | Dual-CPU control based information display system |
| CN110364127A (en) * | 2018-04-10 | 2019-10-22 | 普天信息技术有限公司 | The adaptive display method and device of intelligent large screen system |
-
2015
- 2015-09-29 CN CN201520761075.1U patent/CN205016211U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105260150A (en) * | 2015-09-29 | 2016-01-20 | 成都贝发信息技术有限公司 | Dual-CPU control based information display system |
| CN110364127A (en) * | 2018-04-10 | 2019-10-22 | 普天信息技术有限公司 | The adaptive display method and device of intelligent large screen system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160203 Termination date: 20160929 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |