CN102622963B - Simple and universal full-hardware control system of display screen - Google Patents
Simple and universal full-hardware control system of display screen Download PDFInfo
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- CN102622963B CN102622963B CN201210107819.9A CN201210107819A CN102622963B CN 102622963 B CN102622963 B CN 102622963B CN 201210107819 A CN201210107819 A CN 201210107819A CN 102622963 B CN102622963 B CN 102622963B
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Abstract
The invention discloses a simple and universal full-hardware control system of a display screen, particularly relates to the technology of dot matrix display screen control, and belongs to the technical field of an intelligent control system. The simple and universal full-hardware control system of the display screen comprises a central processing unit (CPU) control module, a memory module (random-access memory (RAM) or electrically erasable read only memory (EEROM)), a signal control module, a row selection module, a light-emitting diode (LED) dot matrix module, a parallel to series module and a plurality of series to parallel modules. The memory module is respectively in data connection with the CPU control module, the signal control module and the parallel to series module, the control ends of the parallel to series module and the row selection module are respectively connected with the signal control module, the parallel to series module is connected with the row section module, the plurality of series to parallel modules are configured in dot matrix mode and connected with the row selection module, and the series to parallel modules which are configured in dot matrix mode is correspondingly connected with the LED dot matrix module.
Description
Technical field
The present invention relates to a kind of display screen entire hardware control system of simple general use, relate in particular to a kind of technology of dot matrix display screen control, belong to field of intelligent control technology.
Background technology
Day by day universal along with computing machine, to be made as basic information promulgating platform more and more important with computer controlled.And the control system of digital dot matrix display screen is along with user's request changes always, waste of manpower and material resources.For addressing this problem, need a general entire hardware control system of design.
Summary of the invention
The object of this invention is to provide a kind of general, simple and convenient, devices at full hardware display screen control system, this system can be met customer need easily and effectively.
For achieving the above object, the present invention adopts following technical scheme:
A display screen entire hardware control system for simple general use, is characterized in that: this system comprises CPU control module, memory module, signal controlling module, row modeling piece, LED lattice module and turns string module and multiple string and turns and module; Described memory module respectively with CPU control module, signal controlling module and and turn string module data and be connected, control end described and that turn string module and row modeling piece is connected with signal controlling module respectively, and turn string module be connected with row modeling piece, described multiple string turns and module is dot matrix and arranges and is connected with row modeling piece, and the string that dot matrix is arranged turns and the corresponding connection of module LED lattice module.
Wherein and turn string module adopt the chip into 74LS165; String turns and module adopts 74LS164 chip; Memory module adopts RAM or EEROM storer.Signal controlling module is made up of addition chip; Row modeling piece is that multichannel is selected chip composition.
the present invention compared with prior art tool has the following advantages:
The display screen entire hardware control system of a kind of simple general use of the present invention's design, the hardware control circuit designed according to invention, reads the data in memory module, with the demonstration on the mode control LED dot matrix screen of dot matrix.In the time reading in memory module data first by and turn string module data-switching become to serial data, select module controls to send to certain a line of dot matrix screen by row, the row of dot matrix screen show to be realized by serial-shift, meet after a line in data displacement, turn also module by string data are latched into dot matrix screen display.All timing control signals are generated by signal controlling modular circuit.
The present invention is that devices at full hardware realizes, the height that real-time realizes than software, and independence is good, does not take the CPU time of custom system, with low cost.
In the time that LED dot matrix size changes, without adjusting main control circuit part (comprise memory module, signal controlling module and turn string module and row modeling piece), only need to change string and turn and lattice module.
In the time of LED dot matrix resolution changing, without adjusting main control circuit part (comprise memory module, signal controlling module and turn string module and row modeling piece), also only need to change that apolegamy string turn and the quantity of lattice module.
User needs only the data that will show is delivered to the respective regions of memory module, then connects dot matrix screen module, after powering on, just can automatically show.
Progressive is also: CPU, as long as showing that data deposit respective stored module space in, just can automatically show, does not need to take CPU time and completes demonstration.
As long as change the locus that shows deposit data.
Whole system of the present invention adopts simple digital circuitry module to realize, cheap.Entire hardware control, does not use software control, and extensibility is good, and versatility is good, and hardware line is few, shows that real-time is good, and final demonstration is to adopt static demonstration, and brightness can ensure.
Brief description of the drawings
Fig. 1 is the display screen entire hardware control system construction drawing of simple general use.
Embodiment
Below in conjunction with the accompanying drawings and the specific embodiments the display screen entire hardware control system of simple general use of the present invention is described in further detail.
The display screen entire hardware control system of simple general use of the present invention, this system comprises CPU control module, memory module, signal controlling module (being made up of adder circuit), row modeling piece (being made up of adder circuit), LED lattice module and turns string module (74LS165 chip) and multiple string turns also module (74LS164 chip); Described RAM memory module respectively with CPU control module, signal controlling module and and turn string module data and be connected, control end described and that turn string module and row modeling piece is connected with signal controlling module respectively, and turn string module be connected with row modeling piece, described multiple string turns and module is dot matrix and arranges and be connected with row modeling piece, the string that dot matrix is arranged turns and the corresponding LED of connection of module lattice module (this module without driving circuit time, need separately add driving circuit).
The hardware control circuit control circuit workflow of the present invention's design is as follows:
1. general host computer needs the data of demonstration by RS232 serial port and the CPU transmission of slave computer, and by slave computer store data in the corresponding region of memory module.
2. generate row address by signal controlling module and select signal, and offer row modeling piece, select the capable data channel of open place dot matrix by row modeling piece.
3. pass through signal controlling module calculated address signal and control signal, the data reading in control store module RAM.
4. reading in memory module RAM after data, then generate control signal by signal controlling module, by and turn string module (74LS165 chip) data-switching become to serial data.
5. the demonstration of the row of dot matrix screen realizes by serial-shift, meets after a line in data displacement, turns also module (74LS164 chip) data are latched into dot matrix screen display by string.
6. transfer after the data of a byte, the totalizer in signal controlling module adds 1 by the address of controlling control store module.
7. repeating step 3-6.Complete the transmission of data line.
8. running through after the shown data of a line, to row modeling block signal, will allow it select next line data channel by signal controlling module.
9. repeating step 2-8 then, realizes the demonstration of whole screen information.Signal controlling module and row modeling block reset, get back to original state, gets back to step 2, repeats.
Claims (6)
1. a display screen entire hardware control system for simple general use, is characterized in that: this system comprises CPU control module, memory module, signal controlling module, row modeling piece, LED lattice module and turns string module and multiple string and turns and module; Described memory module respectively with CPU control module, signal controlling module and and turn string module data and be connected, control end described and that turn string module and row modeling piece is connected with signal controlling module respectively, and turn string module be connected with row modeling piece, described multiple string turns and module is dot matrix and arranges and is connected with row modeling piece, and the string that dot matrix is arranged turns and the corresponding connection of module LED lattice module;
The workflow of this system is as follows:
1) host computer needs the data of demonstration by RS232 serial port and CPU transmission, and by slave computer store data in the corresponding region of memory module;
2) generate row address by signal controlling module and select signal, and offer row modeling piece, select the capable data channel of open place dot matrix by row modeling piece;
3) by signal controlling module calculated address signal and control signal, the data reading in control store module;
4) reading in memory module after data, then generate control signal by signal controlling module, by and turn string module data-switching become to serial data;
5) demonstration of the row of dot matrix screen realizes by serial-shift, meets after a line in data displacement, turns also module data are latched into dot matrix screen display by string;
6) transfer after the data of a byte, the totalizer in signal controlling module adds 1 by the address of control store module;
7) repeating step 3-6, completes the transmission of data line;
8) running through after the shown data of a line, to row modeling block signal, allowing it select next line data channel by signal controlling module;
9) repeating step 2-8 then, realizes the demonstration of whole screen information, and signal controlling module and row modeling block reset, get back to original state, gets back to step 2, repeats.
2. the display screen entire hardware control system of simple general use according to claim 1, is characterized in that: described and turn string module adopt the chip into 74LS165.
3. the display screen entire hardware control system of simple general use according to claim 1, is characterized in that: described string turns and module adopts 74LS164 chip.
4. the display screen entire hardware control system of simple general use according to claim 1, is characterized in that: described memory module adopts RAM or EEROM storer.
5. the display screen entire hardware control system of simple general use according to claim 1, is characterized in that: described signal controlling module is made up of addition chip.
6. the display screen entire hardware control system of simple general use according to claim 1, is characterized in that: row modeling piece is that multichannel is selected chip composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210107819.9A CN102622963B (en) | 2012-04-13 | 2012-04-13 | Simple and universal full-hardware control system of display screen |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210107819.9A CN102622963B (en) | 2012-04-13 | 2012-04-13 | Simple and universal full-hardware control system of display screen |
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| Publication Number | Publication Date |
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| CN102622963A CN102622963A (en) | 2012-08-01 |
| CN102622963B true CN102622963B (en) | 2014-11-26 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106523935A (en) * | 2016-10-10 | 2017-03-22 | 深圳市康铭盛科技实业股份有限公司 | Integrated type LED light-emitting module |
| CN106409215A (en) * | 2016-10-10 | 2017-02-15 | 深圳市康铭盛科技实业股份有限公司 | LED backlight control method |
| CN107396505A (en) * | 2017-09-20 | 2017-11-24 | 上海乐野网络科技有限公司 | A kind of circuit for driving multigroup LED to show |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6593901B1 (en) * | 1998-12-15 | 2003-07-15 | Citizen Watch Co., Ltd. | Electronic device |
| CN201514738U (en) * | 2009-09-04 | 2010-06-23 | 王文杰 | LED display screen |
| CN201994040U (en) * | 2011-03-29 | 2011-09-28 | 南京信息工程大学 | Lattice LED (light-emitting diode) display system |
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2012
- 2012-04-13 CN CN201210107819.9A patent/CN102622963B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6593901B1 (en) * | 1998-12-15 | 2003-07-15 | Citizen Watch Co., Ltd. | Electronic device |
| CN201514738U (en) * | 2009-09-04 | 2010-06-23 | 王文杰 | LED display screen |
| CN201994040U (en) * | 2011-03-29 | 2011-09-28 | 南京信息工程大学 | Lattice LED (light-emitting diode) display system |
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| CN102622963A (en) | 2012-08-01 |
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