CN103093704B - Magnetic suspension light-emitting diode (LED) rotary display screen - Google Patents
Magnetic suspension light-emitting diode (LED) rotary display screen Download PDFInfo
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- CN103093704B CN103093704B CN201310019268.5A CN201310019268A CN103093704B CN 103093704 B CN103093704 B CN 103093704B CN 201310019268 A CN201310019268 A CN 201310019268A CN 103093704 B CN103093704 B CN 103093704B
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Abstract
The invention discloses a magnetic suspension light-emitting diode (LED) rotary display screen which comprises an LED lattice displayer, a motor, a suspended matter control cabinet and a magnetic suspension machine. The magnetic suspension machine comprises a magnetic suspension machine support, a first iron box and a second iron box, wherein the first iron box is arranged at the upper end of the support, the second iron box is arranged at the lower end of the support, an infrared distance measurement sensor is arranged inside the first iron box and used for measuring the height of suspended matter, and a first central processing module is arranged inside the second iron box and used for controlling the height of the suspended matter and controlling output currents. A wireless communication technology and a magnetic suspension technology are adopted, no matter where the display screen is arranged, the display screen can achieve that the height of the LED display screen is controllable, adjustable within a scope and arbitrarily visible within a scope of 360 degrees of a visual angle. Due to the fact that few LED lattices are used, cost of a product is reduced.
Description
Technical field
The present invention relates to magnetic levitation LED rotary display screen, particularly relate to a kind of font based on 51 single-chip microcomputer controllable height and the anglec of rotation and show, belong to the technical field of LED display.
Background technology
Display screen is used for the every nook and cranny of our daily life, and increasing businessman brings into use, and plays the object of marketing.But finished product main is in the market a kind of fixed, plane display, all be made up of LED module within the scope of display screen, LED module used is many, cost compare is high and the pixel of LED has certain restriction, its visual range is received must limit, this is that user is unwilling to accept.
Summary of the invention
The object of the invention is the deficiency in order to overcome above method, propose a kind of magnetic levitation LED rotary display screen of the controllable height based on 51 single-chip microcomputers, the reduction greatly and the visual range that realize cost expand 360 degree to, have novel unique feature.
The present invention is achieved through the following technical solutions:
A kind of magnetic levitation LED rotary display screen, comprises LED matrix display, arranges motor below LED matrix display, arrange suspension switch board below motor; Also comprise magnetic levitation device, magnetic levitation device comprises magnetic levitation device support and is positioned at the first can of pedestal upper end and the second can of lower end, infrared distance sensor is set in the first can for measuring the height of suspension, first central processing module is set in the second can, for controlling suspension height and controlling output current, namely the signal sent by receiving infrared distance sensor adjusts size of current, thus controls magnetic force size; LED matrix display is arranged in magnetic levitation device.
Described magnetic levitation LED rotary display screen, also comprises the second central processing module for the reception of font code wireless transmission and the font code controlling display translation.
Described magnetic levitation LED rotary display screen, is provided with wireless power receiver module and infrared emission receiving sensor in suspension switch board, infrared emission receiving sensor shows for the transmission of the cycle control font code that matches with the second central processing module.
Described magnetic levitation LED rotary display screen, the first central processing module also comprises AD converter.
Described magnetic levitation LED rotary display screen, comprise primary power and standby power supply, primary power output voltage provides system works; Standby power supply, after primary power power down, starts automatically, after primary power restores electricity, charges to standby power supply.
Described magnetic levitation LED rotary display screen, also comprises reseting module, and for system power-on reset, or software failure resets.
Beneficial effect of the present invention is:
A kind of magnetic levitation LED rotary display screen provided by the present invention, employ wireless communication technique, magnetic levitation technology, no matter be arranged on Anywhere, this device can realize that LED display height is controlled, visible arbitrarily within the scope of adjustable and 360 degree, visual angle in scope, owing to using less LED dot matrix, also reduce the cost of product.
Accompanying drawing explanation
Fig. 1 is the magnetic levitation device forward sight structural drawing of magnetic levitation LED rotary display screen of the present invention;
Fig. 2 is the forward sight structural drawing of the LED display of magnetic levitation LED rotary display screen of the present invention;
Fig. 3 is the overall appearance figure of magnetic levitation LED rotary display screen of the present invention;
Fig. 4 is the workflow diagram of magnetic levitation device;
Fig. 5 is the workflow diagram of LED display.
Wherein: 1, the first can; 2, magnetic levitation support; 3, second can; 4, LED matrix display; 5, second central processing module; 6, motor; 7, infrared emission receiving sensor; 8, suspension switch board; 9, lower circuit board; 10, infrared distance sensor; 11, first central processing module; 12, limit switch.
Embodiment
Now in conjunction with specific embodiments, be described technical scheme of the present invention, the present invention can also have other embodiments.All those skilled in the art under the premise without departing from the principles of the invention, by changing and retouching formed equivalently to substitute or equivalent transformation, all drop on the protection domain of application claims.
With reference to the forward sight structural drawing that figure 1 is magnetic levitation device of the present invention, Fig. 2 is the forward sight structural drawing of LED display, and the workflow diagram of Fig. 3 to be the overall appearance figure of magnetic levitation LED rotary display screen, Fig. 4 be magnetic levitation device, Fig. 5 is the workflow diagram of LED display.
Peripheral frame specifically forms as shown in Figure 1, 2, mainly comprises magnetic levitation device support, first, second CPU module, lower circuit board 9, first can 1, second can 2, motor 6, LED matrix display 4, suspension switch board 8, infrared emission receiving sensor 7, infrared distance sensor 10.Suspension switch board is used for fixed electrical machinery and places suspension device, mainly in order to stable LED display center of gravity and screen is suspended; Second central processing unit is arranged on above motor, is that the character code in order to be received by 51 single-chip microcomputers is sent to LED display module in a rotative pattern; Motor is fixed on suspension switch board, and object is can driving display screen when motor rotates, and makes the angular field of view of display screen can expand 360 degree to; The effect of magnetic levitation device support 2 is in order to fixing can; First can installation infrared distance measuring sensor 10, measure the height of suspension, the height of support is exactly the maximum lifting height of suspension; Lower circuit board, magnetic field generator and power module part is placed in second can, size of current in control electromagnet is to control the magnetic force size of electromagnet, what send due to the infrared distance sensor on support is simulating signal, add AD converter at the input end of infrared simulation signal, when making the height of LED rotary screen have any small change, the magnetic force of electromagnet all needs to adjust.
The master chip of central processing module adopts STC89S52, a high-performance 8 bit processor based on 8051 kernels, first central processing module 11 is for measuring suspension height and controlling output current, the reception of the second central processing module 5 for font code wireless transmission and the font code of control display translation, lower circuit board is that wireless power receiver module is for receiving wireless power.
Power module, LED display needs+5V power supply.First line voltage is carried out step-down through input transformer, use 7805 to obtain stable 5V voltage.Then voltage is divided into two-way, a direct supply circuit plate 1 in road works, and an other road supply circuit plate 2 works.Charge a battery when line voltage normal power supply simultaneously, when line voltage stops, then produce and interrupt being powered by accumulator.
Reseting module, the button reset function of the electrification reset of the main completion system of reseting module and system operationally user, what the present invention adopted is better simply RC circuit, system electrification by resistance to capacitor charging, when electric capacity position reaches the threshold voltage of high level, RESET end exports as high level, and system is in reset mode.When the voltage at electric capacity two ends reaches the voltage of high level, RESET end exports as low level, system worked well.When user pushes button, electric capacity two ends electric charge is released, and RESET end exports high level, and system enters reset mode, and reset key release electric capacity is in charging process, and system enters normal condition.
Principle of work of the present invention is as follows:
This invention has adjustment height, the LED display that font rotates and rotating speed is adjustable, and the function utilizing radio communication real-time update font to show by host computer can be realized, the transmission font code of the single-chip microcomputer interruption of the second central processing module, utilizes the persistence of vision of people to come Display of Chinese characters or letter.
When user needs to change the content wanting reality, only need in the host computer interface of control end, input the content that will show, then corresponding binary code is generated, then these font codes are sent in the internal data registers of the NRF24L01 on circuit board 1 by control end single-chip microcomputer, when after the synchronizing information of two ends, data are delivered to the data register of the NRF24L01 of receiving end by transmitting terminal, then set up communication with the second central processing module single-chip microcomputer, single-chip microcomputer is sent to LED display by after information processing.
When user needs the rotating speed changing display screen, only need the pulse signal that 51 single-chip microcomputers of change second central processing module produce, we normally use dutycycle be 0.6 signal, when needs change rotating speed, by what revise the initial value of timer in 51 single-chip microcomputers, the dutycycle changing pulse signal is set, then by the distribution of signal, power amplification can send into direct current generator to reach the effect controlling motor speed.
When user needs the height changing display screen, the magnetic force size of electromagnet can be changed by the size of current changed in electromagnet, namely change the adjustment limit switch of the input of solenoid input queued switches L293D, due to magnetic field force size when display screen balances and gravity equal and opposite in direction, cross and can be in equilibrium state, when changing the magnetic force size of electromagnet, suspension can rise thereupon or decline, and will enter another one equilibrium state again.Because the output signal of the infrared distance sensor installed upper in can 1 is simulating signal, a small analog quantity change is produced when the Level Change of our suspension, and now single-chip microcomputer can not identify, need to pass through AD conversion, the process of the single-chip microcomputer on central processing module 1 just can control output voltage, by driving with the effect reaching regulation output electric current, play the effect regulating suspension height.
The course of work of the present invention is as follows:
Magnetic levitation device: measure length by the infrared distance sensor in rack-mount end first can time initialized, if length equals the length of support, illustrate and now do not have object to put, then do not produce magnetic field in electromagnet, when there being object to put, the length of measurement is less than support height, 51 single-chip microcomputers now in the first central processing module can produce output signal, and convert the pulse signal of electric current to, in electromagnet, produce magnetic field, suspend to cause object.When the hoverheight of the size of object or object will be changed, can by the limit switch on adjustment second can, the magnetic force increasing magnetic field makes object hoverheight become large, if as long as the height reverse direction that in like manner will reduce suspension regulates limit switch (detailed process asks for an interview Fig. 3).
LED display: first power on to whole system, be divided into two parts, first direct supply directly to feeding electric motors now motor start rotate, second, LED display adopts wireless power technology, first be that direct current is converted to alternating current, then alternating current be converted to direct current to supply LED display use.After two aspects are above all ready, whether the infrared emission receiving sensor be arranged on suspension switch board just starts to detect the second CPU module and forwards to above it, if not, then on the second central processing module, single-chip microcomputer is waited for always and keeps the data of Last status, second CPU module forwards to above it, if, then send into next font code, reexamine whether powered-down, if it is terminate, if not, then continue to perform, the content that Circulating fibrocytes will show.
Claims (4)
1. a magnetic levitation LED rotary display screen, is characterized in that: comprise LED matrix display, arranges motor below LED matrix display, arranges suspension switch board below motor; Also comprise magnetic levitation device, magnetic levitation device comprises magnetic levitation device support and is positioned at the first can of pedestal upper end and the second can of lower end, in first can, infrared distance sensor is set, for measuring the height of suspension, first central processing module is set in the second can, for controlling suspension height and controlling output current, the signal namely sent by receiving infrared distance sensor adjusts size of current, thus controls magnetic force size; LED matrix display is arranged in magnetic levitation device; Also comprise the second central processing module, for the reception of font code wireless transmission and the font code of control display translation; Be provided with wireless power receiver module and infrared emission receiving sensor in suspension switch board, infrared emission receiving sensor shows for the transmission of the cycle control font code that matches with the second central processing module.
2. magnetic levitation LED rotary display screen as claimed in claim 1, is characterized in that: the first central processing module also comprises AD converter.
3. magnetic levitation LED rotary display screen as claimed in claim 2, it is characterized in that: comprise primary power and standby power supply, primary power output voltage provides system works; Standby power supply, after primary power power down, starts automatically, after primary power restores electricity, charges to standby power supply.
4. magnetic levitation LED rotary display screen as claimed in claim 3, is characterized in that: also comprise reseting module, and for system power-on reset, or software failure resets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310019268.5A CN103093704B (en) | 2013-01-18 | 2013-01-18 | Magnetic suspension light-emitting diode (LED) rotary display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310019268.5A CN103093704B (en) | 2013-01-18 | 2013-01-18 | Magnetic suspension light-emitting diode (LED) rotary display screen |
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| Publication Number | Publication Date |
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| CN103093704A CN103093704A (en) | 2013-05-08 |
| CN103093704B true CN103093704B (en) | 2015-03-11 |
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| CN201310019268.5A Expired - Fee Related CN103093704B (en) | 2013-01-18 | 2013-01-18 | Magnetic suspension light-emitting diode (LED) rotary display screen |
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103268725A (en) * | 2013-06-06 | 2013-08-28 | 雷建设 | High-voltage control magnetic suspension teaching demonstration instrument |
| CN105573349A (en) * | 2015-12-15 | 2016-05-11 | 华北电力科学研究院有限责任公司 | Limiting sensor and limiting device |
| CN105662025A (en) * | 2016-02-15 | 2016-06-15 | 余启佳 | Magnetic suspension air conditioner |
| CN105708242A (en) * | 2016-02-15 | 2016-06-29 | 余启佳 | Magnetic levitation air purifier |
| KR20180096078A (en) * | 2017-02-20 | 2018-08-29 | 엘지전자 주식회사 | Module type home robot |
| CN110431614A (en) * | 2017-08-06 | 2019-11-08 | 李晨冈 | Financial bubble photoelectric digital magnetic suspension shows the method that ball and financial bubble calculate |
| CN108377055A (en) * | 2018-03-30 | 2018-08-07 | 苏州容浦机电科技有限公司 | A kind of novel magnetically levitated switch reluctance servo motor |
| CN208061578U (en) | 2018-05-10 | 2018-11-06 | 京东方科技集团股份有限公司 | Support device and display equipment |
| 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 |
| CN109347366A (en) * | 2018-09-30 | 2019-02-15 | 联想(北京)有限公司 | A kind of control method, device and electronic equipment |
| CN110138280A (en) * | 2019-06-17 | 2019-08-16 | 张则羿 | It is a kind of that the floating rotary system of aspiration-type magnetic is often led based on angular momentum conservation law |
| CN111772571B (en) * | 2020-06-30 | 2023-08-22 | 江门职业技术学院 | Vision detector |
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| CN2561163Y (en) * | 2002-06-27 | 2003-07-16 | 山东科技大学济南校区 | Suction mixed magnetic suspension apparatus |
| CN2727882Y (en) * | 2004-05-23 | 2005-09-21 | 孔凡让 | Magnetic levitation system |
| CN201570185U (en) * | 2009-11-05 | 2010-09-01 | 上海第二工业大学 | Magnetic levitation tellurion demonstration model based on digital control |
| CN201569877U (en) * | 2009-12-18 | 2010-09-01 | 滕世进 | Magnetic suspension wireless power supply time display system |
| CN203118357U (en) * | 2013-01-18 | 2013-08-07 | 南京信息工程大学 | Magnetic suspension LED rotary display screen |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US8258663B2 (en) * | 2009-09-28 | 2012-09-04 | Disney Enterprises, Inc. | Magnetic levitation novelty device |
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2013
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Patent Citations (5)
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|---|---|---|---|---|
| CN2561163Y (en) * | 2002-06-27 | 2003-07-16 | 山东科技大学济南校区 | Suction mixed magnetic suspension apparatus |
| CN2727882Y (en) * | 2004-05-23 | 2005-09-21 | 孔凡让 | Magnetic levitation system |
| CN201570185U (en) * | 2009-11-05 | 2010-09-01 | 上海第二工业大学 | Magnetic levitation tellurion demonstration model based on digital control |
| CN201569877U (en) * | 2009-12-18 | 2010-09-01 | 滕世进 | Magnetic suspension wireless power supply time display system |
| CN203118357U (en) * | 2013-01-18 | 2013-08-07 | 南京信息工程大学 | Magnetic suspension LED rotary display screen |
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