CN1750069A - Display system for persistance of vision and its method for realizing display - Google Patents
Display system for persistance of vision and its method for realizing display Download PDFInfo
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- CN1750069A CN1750069A CN 200510100156 CN200510100156A CN1750069A CN 1750069 A CN1750069 A CN 1750069A CN 200510100156 CN200510100156 CN 200510100156 CN 200510100156 A CN200510100156 A CN 200510100156A CN 1750069 A CN1750069 A CN 1750069A
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Abstract
The display system for persistence of vision includes PC, mobile control platform and display screen device. The display method includes converting the text or graph to be displayed into digital signal in the PC; transmitting the digital signal in wired or wireless mode to the display screen device and controlling the LEDs' on-off state with the monolithic computer in the display screen device; and driving the LED line to rotate or oscillate with the driving mechanism so as to form annular or planar display screen smartly by means of the vision persistence of human eyes. The present invention has the features of simple structure, unique visual angle, novel design, convenient use, etc. and has display content changeable at will.
Description
Technical field
The present invention relates to electronic display, especially utilize human eye vision to persist effect produces continuous video to discontinuous light display screen.
Background technology
The LED dot matrix is as a kind of novel display material, and development in recent years is very fast, good market prospects.Wherein the LED big screen display screen is widely used in fields such as industry, traffic, commercial advertisement, news briefing, sports tournament, electronics object simulation.But existing LED giant-screen, LED that requested number is numerous and chip for driving, and control is complicated, makes display screen cost an arm and a leg, and not easy to operate.
The patent No. is that 03257185.2 Chinese utility model discloses a kind of " multilayer array light source mobile imaging display device ", it is characterized in that on movable support, electronic control circuit being installed, and the luminous array of several diverse locations is set in the method direction of the direction of motion of movable support, these several luminous array can be vertical bar shaped or various geometrical curve shape, makes it do displacement movement on plane of setting or curved surface by telecontrol equipment.Each pointolite of luminous array is under electronic circuit control in the motion process, lights or extinguishes by preset program, and because of human eye vision persists effect, the observer just can see having that different multilayer is nested or depth thickness solid graph text information.This display device is a fixed cycles, can not change displaying contents as required immediately.
Summary of the invention
The method that the purpose of this invention is to provide a kind of persistence of vision display system and realize showing can change displaying contents as required at any time.
For reaching above-mentioned purpose, persistence of vision display system of the present invention comprises PC, moves control platform and display screen part;
Have in the described PC needs content displayed delivery and digitized software, the serial ports of PC and mobile console or display screen partly carry out data transmission;
Described mobile control platform comprises a serial ports transmission circuit that is connected with PC, the single chip machine controlling circuit that is connected with the serial ports transmission circuit and the LCDs that is connected with single chip machine controlling circuit respectively, operating key, wireless sending module, RAM and EEPROM;
Described display screen partly comprises wireless receiving module, the single chip machine controlling circuit that is connected with wireless receiving module, the EEPROM that is connected with single chip machine controlling circuit, the Multi-bit LED that forms a line respectively, and the driving mechanism that drives these row LED rotation or swing.
The preferred AT89C55 of single-chip microcomputer in the described mobile control platform.
The preferred AT89S52 of single-chip microcomputer in the described display screen part.
The described LED that forms a line has 64 or 32.
In order to make simple to operateization of control platform, the operating key in the described mobile control platform has 4, is connected respectively to four I/O mouths of corresponding single-chip microcomputer.
Persistence of vision display system of the present invention realizes the method for demonstration, can transmit based on cable data, also can be based on wireless data transmission.
Method based on wireless data transmission is:
In PC, the literal or the figure that will show are converted to digital signal;
Digital signal is transferred in the serial ports transmission circuit that moves the control platform by serial line interface, be transferred in the single chip machine controlling circuit that moves the control platform by the serial ports transmission circuit again, send in the wireless receiving module of display screen part by wireless sending module again;
In the single chip machine controlling circuit of display screen part, single chip machine controlling circuit is controlled the light on and off state of each LED to wireless receiving module the digital data transmission that receives;
Drive mechanism permutation LED rotation or swing.
Method based on the cable data transmission is:
In PC, the literal or the figure that will show are converted to digital signal;
Digital signal directly is transferred in the display screen single chip machine controlling circuit partly by serial line interface is wired, and single chip machine controlling circuit is controlled the light on and off state of each LED;
Drive mechanism permutation LED rotation or swing.
In described PC, English that show and numerical character are decomposed into 16 * 32 dot matrixs, the Chinese character that show is decomposed into 32 * 32 dot matrixs, the figure that show is decomposed into 64 * 64 dot matrixs.
The method that display system of the present invention and realization thereof show, utilize the human eye vision persistence characteristic to form the display screen of ring-like or plane dexterously, can realize the identical display effect of extensive LED screen with Multi-bit LED once row, greatly reduce the quantity of LED and chip for driving, effectively control cost.High-speed radio transmission data make display screen and PC input system not be subjected to space constraint, are convenient to installing and using of display screen; By moving control platform switching display content in real time, change display effect; By the delivery software of self-editing special use, realization character or getting of figure are touched, and can hand-written input want content displayed, and system can realize the demonstration of arbitrary graphic.The present invention has simple in structure, visual angle uniqueness, modern design, characteristics such as easy to use.
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment of the present invention is further described.
Fig. 1 is a hardware block diagram of the present invention.
Fig. 2 is the main circuit block diagram of display screen part.
Fig. 3 is wanting content displayed to transfer the main program flow of digital signal in PC.
Fig. 4 is a character delivery subroutine flow chart.
Fig. 5 is a figure delivery subroutine flow chart.
Fig. 6 is the master routine block scheme that moves the control platform.
Fig. 7 is the serial ports interruption subroutine process flow diagram that moves the control platform.
Fig. 8 is the wireless transmission subroutine flow chart.
Fig. 9 is a display screen part main program flow chart.
Figure 10 is the wireless receiving subroutine flow chart.
Embodiment
Embodiment one:
As shown in Figure 1, hardware comprises PC, moves control platform and display screen part three parts.In PC, realize and content displayed to convert digital signal to.The mainly responsible PC of reception of mobile control platform holds software to get and touches data, adding control character and preservation.Move the control platform simultaneously and can also partly send specific control command to display screen, switching display content changes display effect.The display screen part mainly is by Electric Machine Control rotating speed and Single-chip Controlling LED display text, figure or animation etc.
The mainly responsible PC of reception of mobile control platform holds digital signal, adding steering order and the preservation that transmits, and adopts unique design assurance data can not lose because of outage.When needs show, can access data and radio to display screen, realize upgrading in time of displaying contents.Move the control platform simultaneously and can send specific control command to display screen, switching display content changes display effect.
Moving the control platform is to consist of the following components:
1, single chip computer AT 89C55.Controller adopts AT89C55, is a kind of low-power consumption, high performance CMOS microcontroller.System has adopted menu function, and amount of ram is bigger, so select the bigger single chip computer AT 89C55 of Flash Memory for use.
2, serial ports transmission circuit.The serial ports transmission circuit utilizes ripe serial transceiving chip MAX232 to form.
3, wireless sending module.Native system adopts the RFW102 chipset.The RFW102 chipset is the wireless transceiver IC of a kind of half-duplex DSSS, and it adopts the ASK modulation system, and frequency of operation is at 2.4GHz.This chipset is short-distance radio transmitting-receiving IC, and it is made up of three chips, has simple digital serial I/O interface simultaneously.Its typical output power is 2dBm, and maximum transmission rate is 1Mb/s, the transmission range of RFW102 (indoor is 20 meters, outdoor reach 80 to 100 meters) far away.This chipset comprises an antenna that is imprinted on the printed circuit board (PCB), thereby very easy to use.
4, keyboard.Operating key is made up of four keys, is respectively " determining ", " withdrawing from ", " moving to left ", " moving to right ".Because bond number is less, so directly receive four I/O mouths respectively.
5, LCDs.This LCDs is selected for use is 128 * 64 liquid crystal.128 * 64 LCD MODULE are 128 * 64 dot matrix type LCD MODULE, can show various characters and figure, can with the CPU direct interface, have 8 normal data buses, 6 control lines and power lead.Adopt KS0107 control IC.Mcu programming adopts the menu display mode, can select function corresponding by the function key of keyboard.Make that moving the control platform is easy to use.Liquid Crystal Module can show the whole system operation state in real time.When moving the control platform when display screen sends data, the content that liquid crystal also can corresponding demonstration transmission data.
Powerful remote control Control-Menu has been formed in keyboard and liquid crystal display.By control " withdrawing from ", " determining ", " moving to left ", " moving to right " four keys, realize accepting data, preserving powerful kinetic energy such as data, wireless transmission data from PC.Move the control platform by this and can also select to decide screen, roll screen display mode.Should move the control platform and make the domestic electrical equipment remote controller size.
Display screen partly consists of the following components:
1, wireless receiving module.Adopt the RFW102 chipset.
2, driving mechanism.Driving mechanism is made up of adjustable speed direct current generator, DC speed regulator and brush.
The adjustable speed direct current generator.The selected direct current motor of the present invention is the direct current generator of the Panasonic company a adjustable-speed of being produced, and its rated operational voltage is 220V, and the adjustable speed scope is 0～6000r/min.The method of speed governing can be found out in the mechanical characteristic equation by motor:
In following formula, when torque M constant (being that load is constant), what influence the motor revolution has supply voltage U, an armature resistance r
aWith three factors of main flux Φ, as long as change one of them, the rotating speed of motor just can obtain adjusting.The governing system of native system adopts and changes the terminal voltage speed regulation method.The terminal voltage U that changes armature can improve or reduce the revolution of direct current motor accordingly, and this speed regulating method principle is simple, realizes good stability easily.
DC speed regulator.Its rated voltage of the DC speed regulator of selecting for use is 220V, and rated current is 8A, and adjustable output dc voltage is 0～110V, and its principle of work is regulated output voltage by regulating controllable silicon.
Brush.Brush is to design voluntarily by the power supply brush of using for reference motor internal.Moderns are satisfied for the power supply effect.
3, the row dot matrix of forming by 64 ultra-high brightness LEDs.English character adopts 16 * 32 dot matrix ways during demonstration, and Chinese character is 32 * 32 dot matrix ways, and figure then adopts 64 * 64 dot matrix ways, can also realize dynamic display of functional simultaneously.
4, single chip machine controlling circuit.As shown in Figure 2, single chip machine controlling circuit is mainly by a slice single chip computer AT 89S52, EEPROM 28C256, and some latchs 373 and wireless receiving circuit module are formed.Single-chip microcomputer receives after the data useful data storage in EEPROM, so also can obliterated data after the outage.Expanded 8 373 in the bus of single-chip microcomputer in addition, 8 LED lamps of each 373 control, so the monolithic function is controlled the light on and off state of 64 LED flexibly.
Software section of the present invention is described below:
The software of PC adopts the VB programming, and major function is will content displayed be converted to digital signal on PC in real time, and sends data.English or numeral are decomposed into 16 * 32 dot matrix ways, and Chinese character is 32 * 32 dot matrix ways, and figure then adopts 64 * 64 dot matrix ways.The application software of independent development can directly get type matrix, send data, and friendly interface is simple to operate, need not any specialized knowledge and just can use.
Software in the PC of the present invention adopts real-time mode delivery:
Data → figure → data.
By introduce this intermediate quantity of figure, make extract that type matrix becomes flexibly, no matter any font, symbol can be realized instant conversion.Flow process is shown in Fig. 3,4,5.
Character pattern delivery process, see Fig. 4:
When being chosen as character pattern, graphing capability is set to lock-out state, is state of activation but only stay graphing capability master button.Text box only occur on the interface this moment, waits for user input text.
The content of text box is set to sky when the user clicks text box, clicks text box afterwards again and can not empty operation again.The backstage is provided with a picture box for forever hiding, only as the intermediate variable operation, to the user without any effect.Treat that input finishes, the user presses the delivery button, and program judges that at first inlet is type matrix or figure.
Automatically jump into character font section code when being defined as the type matrix pattern.
The single character that takes out is mapped to picture box.Judging that current character is that Chinese character also is non-Chinese character, be to adopt 32 * 32 delivery during the Chinese character delivery, but not Chinese character then adopts 16 * 32 deliverys.
Delivery partly adopts the intersection point delivery.After character maps to picture box, carry out the intersection point color and judge that black is judged to 0, white is judged to 1.And the delivery data are outputed to the output text box.
Press when sending the type matrix button, the content that at first will export text box is sent to the transmission buffer zone of COM, and com port directly is sent to data on the EEPROM that moves control platform single-chip microcomputer in definite can the transmission and stores.
The text input frame is cleared when pressing " all resetting " button, and number of clicks is set to 0 and show to wait for the printed words of input in the input text frame, and all simultaneously arrays are all put 0, and the transmission buffering of COM is cleared.
Character continuation function is not enough at 32 * 32 dot matrix sizes, some point can not show to design when getting Song typeface, this function is as the mode of extension of character pattern and exist, when having opened this function, what get look singly is not 32 * 32 intersection points, but each intersection point and be that one of the center point in is among a small circle got look with this intersection point, in case when certain the some color in this scope was judged as black, the Boolean at this intersection point place was set to 0.Boldface type is a default font, does not need to open this function.
Graphic model delivery process, see Fig. 5:
1) when being chosen as graphic model, character delivery function setting is locking, but only stays character function master button for state of activation, only occurs graphical boxes above the interface, and the user can draw or be written into image.
2) drop on the drawing frame and drawing button when being pressed when user's mouse, paintbrush is set to black, enters the drawing state, can draw arbitrary graphic; When user's mouse drops on the drawing frame and wiping figure button when being pressed, paintbrush is set to white, enters erase status, can wipe the figure on the drawing frame.
3) treat that input finishes, the user presses the delivery button, and program judges that at first inlet is type matrix or figure.
Automatically jump into figure type matrix section code when 4) being defined as graphic model.
5) delivery partly adopts the intersection point delivery.After figure maps to picture box, carry out the intersection point color and judge that black is judged to 0, white is judged to 1.And the delivery data are outputed to the output text box.
Gained delivery data are sent in the single-chip microcomputer that moves the control platform by the serial ports transmission circuit.
In the single-chip microcomputer that moves the control platform, after program one powers on,, the state of waiing upon such as be in through after the initialization.The interrupt priority level that serial ports interrupts is the highest.So no matter what single-chip microcomputer handling, and arrives when serial ports interrupts one, all can interrupt by the priority processing serial ports.Sending wireless data is by button, menu control.Select to carry out the transmission wireless data by menu.The main program process flow diagram is Fig. 6, Fig. 7, Fig. 8, Fig. 9.
By the light on and off of Single-chip Controlling LED and the reception of wireless data.After data received by wireless module, the serial line interface by single-chip microcomputer passed in the single-chip microcomputer.When wireless data arrives, can priority processing receive data.As Figure 10.
The present invention utilize cleverly the human eye vision persistence characteristic can clear demonstration dot character, figure and dynamic menu, have simple in structure, the visual angle is unique, characteristics such as novel in design, easy to use.Can be widely used in the aspects such as persistence of vision phenomena demonstration testing of commercial advertisement, notice of meeting, poster, environmental decoration and high physics teaching, very high social using value is arranged.
Embodiment two:
Use display system of the present invention, when the close together of PC and display screen part, hardware can not selected for use and move the control platform, and PC transmits by wired realization with the display screen partial data.In the present embodiment, the single chip machine controlling circuit wired connection of the serial ports of PC and display screen part, the display screen part receives data by wired mode from PC, and operation can be changed displaying contents or display mode on display screen in PC.All the other are with embodiment one.
Claims (8)
1, a kind of persistence of vision display system comprises PC, moves control platform and display screen part;
Have in the described PC needs content displayed delivery and digitized software, PC serial ports and mobile console or display screen partly carry out data transmission;
Described mobile control platform comprises a serial ports transmission circuit that is connected with PC, the single chip machine controlling circuit that is connected with the serial ports transmission circuit and the LCDs that is connected with single chip machine controlling circuit respectively, operating key, wireless sending module, RAM and EEPROM;
Described display screen partly comprises wireless receiving module, the single chip machine controlling circuit that is connected with wireless receiving module, the EEPROM that is connected with single chip machine controlling circuit, the Multi-bit LED that forms a line respectively, and the driving mechanism that drives these row LED rotation or swing.
2, display system according to claim 1 is characterized in that: the single-chip microcomputer in the described mobile control platform adopts AT89C55.
3, display system according to claim 1 is characterized in that: the single-chip microcomputer in the described display screen part adopts AT89S52.
4, display system according to claim 1 is characterized in that: the described LED that forms a line has 64 or 32.
5, display system according to claim 2 is characterized in that: the operating key in the described mobile control platform has 4, is connected respectively to four I/O mouths of corresponding single-chip microcomputer.
6, a kind of display system according to claim 1 realizes the method for demonstration, it is characterized in that:
In PC, the literal or the figure that will show are converted to digital signal;
Digital signal is transferred in the serial ports transmission circuit that moves the control platform by serial line interface, be transferred in the single chip machine controlling circuit that moves the control platform by the serial ports transmission circuit again, send in the wireless receiving module of display screen part by wireless sending module again;
In the single chip machine controlling circuit of display screen part, single chip machine controlling circuit is controlled the light on and off state of each LED to wireless receiving module the digital data transmission that receives;
Drive mechanism permutation LED rotation or swing.
7, a kind of display system according to claim 1 realizes the method for demonstration, it is characterized in that:
In PC, the literal or the figure that will show are converted to digital signal;
Digital signal directly is transferred in the display screen single chip machine controlling circuit partly by serial line interface is wired, and single chip machine controlling circuit is controlled the light on and off state of each LED;
Drive mechanism permutation LED rotation or swing.
8, according to claim 6 or 7 described methods, it is characterized in that: in described PC, English that will show and numerical character are decomposed into 16 * 32 dot matrixs, the Chinese character that show is decomposed into 32 * 32 dot matrixs, the figure that show is decomposed into 64 * 64 dot matrixs.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2005101001568A CN100361173C (en) | 2005-10-10 | 2005-10-10 | Display system for persistance of vision and its method for realizing display |
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| CNB2005101001568A CN100361173C (en) | 2005-10-10 | 2005-10-10 | Display system for persistance of vision and its method for realizing display |
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| CN1750069A true CN1750069A (en) | 2006-03-22 |
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| CN104978904A (en) * | 2015-06-29 | 2015-10-14 | 刘兴华 | Variable-speed rotating LED display system and method for displaying the same |
| CN104991749A (en) * | 2015-06-29 | 2015-10-21 | 刘兴华 | Wireless communication method for vision persistence based LED display apparatus |
| CN107978269A (en) * | 2018-01-19 | 2018-05-01 | 安徽极光照明工程有限公司 | Multilayer LED array stereo display method and its control system based on POV |
| CN108711380A (en) * | 2018-05-30 | 2018-10-26 | 云谷（固安）科技有限公司 | Display panel and display device |
| CN108832949A (en) * | 2018-07-24 | 2018-11-16 | 华勤通讯技术有限公司 | The exchange method of electronic equipment and electronic equipment |
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| SE447399B (en) * | 1985-03-22 | 1986-11-10 | Husqvarna Ab | EQUIPMENT DEVICE IN ELECTRONIC SEWING MACHINE |
| CN2277548Y (en) * | 1995-02-16 | 1998-04-01 | 陈荫慈 | Array light-source movable imaging display |
| CN2283908Y (en) * | 1995-12-06 | 1998-06-10 | 沈阳东宇电子技术研究所 | Single luminous diode array display device |
| CN2318680Y (en) * | 1998-01-01 | 1999-05-12 | 陈实芬 | Array light source back- and forth moving imaging display screens |
| CN2492922Y (en) * | 2001-03-15 | 2002-05-22 | 刘继军 | New-type optoelectronic display unit |
| US6639571B2 (en) * | 2001-09-27 | 2003-10-28 | Dynascan Technology Corp. | Rotating display with design of surrounding a column |
| CN2679723Y (en) * | 2003-05-06 | 2005-02-16 | 陈实午 | Multilayer array light source shifting imaging display |
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| WO2014056230A1 (en) * | 2012-10-14 | 2014-04-17 | Wang Shujie | Special cheer board |
| CN104978904A (en) * | 2015-06-29 | 2015-10-14 | 刘兴华 | Variable-speed rotating LED display system and method for displaying the same |
| CN104991749A (en) * | 2015-06-29 | 2015-10-21 | 刘兴华 | Wireless communication method for vision persistence based LED display apparatus |
| WO2017000522A1 (en) * | 2015-06-29 | 2017-01-05 | 深圳市悦创空间科技有限公司 | Led display system capable of rotating at variable speed and display method thereof |
| CN104991749B (en) * | 2015-06-29 | 2018-05-08 | 深圳市悦创空间科技有限公司 | A kind of wireless communication method for the LED display that view-based access control model persists |
| CN107978269A (en) * | 2018-01-19 | 2018-05-01 | 安徽极光照明工程有限公司 | Multilayer LED array stereo display method and its control system based on POV |
| CN108711380A (en) * | 2018-05-30 | 2018-10-26 | 云谷（固安）科技有限公司 | Display panel and display device |
| CN108711380B (en) * | 2018-05-30 | 2020-11-20 | 云谷（固安）科技有限公司 | Display panel and display device |
| CN108832949A (en) * | 2018-07-24 | 2018-11-16 | 华勤通讯技术有限公司 | The exchange method of electronic equipment and electronic equipment |
| CN109903572A (en) * | 2018-10-23 | 2019-06-18 | 广东省路桥建设发展有限公司 | Novel tunnel intelligent transportation state indicating device |
| CN109857028A (en) * | 2019-02-19 | 2019-06-07 | 南京维丽森无损检测有限公司 | A kind of intelligent guiding device for wheel rotation imaging |
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| CN100361173C (en) | 2008-01-09 |
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