CN205016210U - A LED large screen display device for information system - Google Patents
A LED large screen display device for information system Download PDFInfo
- Publication number
- CN205016210U CN205016210U CN201520760888.9U CN201520760888U CN205016210U CN 205016210 U CN205016210 U CN 205016210U CN 201520760888 U CN201520760888 U CN 201520760888U CN 205016210 U CN205016210 U CN 205016210U
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- large screen
- screen display
- central processor
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Abstract
The utility model provides a LED large screen display device for information 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 including install on the circuit board, the emitting diode of predetermined quantity, emitting diode's axis becomes predetermined angle with the direction of perpendicular to circuit board. The utility model provides a LED large screen display device for information system adopts two synergistic working methods of CPU, has reduced the running cost of system to closely viewing effect has been improved.
Description
Technical field
The utility model relates to technical field of information display, particularly a kind of LED large screen display device for infosystem.
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 be usually arranged on overhead higher place due to LED giant-screen, beholder can not see image clearly when closely watching.
Utility model content
To be solved in the utility model is high, that closely viewing effect the is bad problem of existing LED large screen display system operating cost.
For solving the problem, the utility model provides a kind of LED large screen display device for infosystem, 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 comprise installation on circuit boards, the light emitting diode of predetermined quantity, the axis of described light emitting diode becomes predetermined angular with the direction perpendicular to circuit board.
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.
Optionally, described predetermined angular is 4 degree to 6 degree.
Compared with prior art, the utility model has the following advantages:
The LED large screen display device for infosystem 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.Further, because the light emitting diode in LED array and the direction perpendicular to circuit board have certain angle, namely LED array is slightly downward-sloping, makes beholder also can see image clearly when closely watching.
Accompanying drawing explanation
Fig. 1 is the structural representation of the LED large screen display device for infosystem 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;
Fig. 4 is the structural representation of the LED array 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 large screen display device for infosystem of the utility model embodiment, and the described LED large screen display device for infosystem 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.Fig. 4 is the structural representation of described LED array 15, described LED array 15 comprise be arranged on circuit board 41, the light emitting diode 42 of predetermined quantity, the axis of described light emitting diode 42 becomes predetermined angle with the direction perpendicular to circuit board 41, and namely light emitting diode 42 has downward inclination angle.Described predetermined quantity is arranged according to the actual requirements, and described predetermined angle is 4 degree to 6 degree.Micro-downward-sloping by being set to by light emitting diode 42, add 60 degree of verticals angle of view that light emitting diode 42 self is subsidiary, beholder also can see image clearly when closely watching.
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 (6)
1. for a LED large screen display device for infosystem, it is characterized in that, comprise 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 comprise installation on circuit boards, the light emitting diode of predetermined quantity, the axis of described light emitting diode becomes predetermined angular with the direction perpendicular to circuit board.
2. the LED large screen display device for infosystem according to claim 1, is characterized in that, described random access memory is dual-port random access memory.
3. the LED large screen display device for infosystem according to claim 1, is characterized in that, described first central processor circuit is communicated with host computer by serial interface chip.
4. the LED large screen display device for infosystem according to claim 1, is characterized in that, described first central processor circuit is 8031 single chip circuits.
5. the LED large screen display device for infosystem according to claim 1, is characterized in that, described second central processor circuit is PIC16C57 single chip circuit.
6. the LED large screen display device for infosystem according to claim 1, is characterized in that, described predetermined angular is 4 degree to 6 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520760888.9U CN205016210U (en) | 2015-09-29 | 2015-09-29 | A LED large screen display device for information system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520760888.9U CN205016210U (en) | 2015-09-29 | 2015-09-29 | A LED large screen display device for information system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205016210U true CN205016210U (en) | 2016-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520760888.9U Expired - Fee Related CN205016210U (en) | 2015-09-29 | 2015-09-29 | A LED large screen display device for information system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205016210U (en) |
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2015
- 2015-09-29 CN CN201520760888.9U patent/CN205016210U/en not_active Expired - Fee Related
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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 |
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| CF01 | Termination of patent right due to non-payment of annual fee |