CN101511145A - Intelligent operation method of high-power LED lighting lamp - Google Patents
Intelligent operation method of high-power LED lighting lamp Download PDFInfo
- Publication number
- CN101511145A CN101511145A CNA2009101132613A CN200910113261A CN101511145A CN 101511145 A CN101511145 A CN 101511145A CN A2009101132613 A CNA2009101132613 A CN A2009101132613A CN 200910113261 A CN200910113261 A CN 200910113261A CN 101511145 A CN101511145 A CN 101511145A
- Authority
- CN
- China
- Prior art keywords
- led illuminating
- illuminating lamp
- lamp
- chip microcomputer
- lighting lamp
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention discloses an intelligent running method of a high power LED lighting lamp which includes steps as follows: a singlechip detects the working temperature, brightness of a LED lighting lamp according with a temperature sensor, a brightness sensor and a timer installed on the LED lighting lamp, if one of the working temperature vale and the brightness value is higher than a pre-set value, the singlechip limits the working current of the LED lighting lamp through PWM end by the singlechip for reducing the power consumption of the lighting lamp, otherwise, the singlechip monitors the timer time, if the time reaches, reducing the working current of the LED lighting lamp for reducing the power consumption, if not, then detecting the working temperature and brightness of the lighting lamp repeatedly, in this way, working repeatedly. The method can control the LED lighting lamp working condition efficiently, and make the LED lighting lamp running with low power consumption.
Description
Technical field
The invention belongs to the operation control technology field, the particularly method of high-power LED illuminating lamp intelligent operation of LED illuminating lamp.
Background technology
The whole world is used for artificially lighting electric power and will consumes 2,000,000,000,000 Kwh (electric weight that is equivalent to power station, 24 Three Gorges) every year, produces the CO that these electric power will discharge tens00000000 tons
2SO with more than 1,000 ten thousand tons
2, electric lighting has also consumed a large amount of energy and environment for human survival has been caused serious pollution in for human benefiting.At global energy crisis, under the situation that environmental requirement improves constantly, low-power consumption, long-life semiconductor lighting have been known as a kind of important channel of energy-conserving and environment-protective by the whole world.That semiconductor lighting has is low in energy consumption, the life-span is long, light efficiency is high, photochromic pure, advantages such as reaction is fast, stability is high, fail safe is good, radiationless, pollution-free, antidetonation, anti-strike, and semiconductor lighting has become 21 century and had most one of high-tech sector of development prospect.Along with the development of production technology, higher light efficiency, more the high-power LED chip is constantly released, the semiconductor lighting of China is just entering fast-developing period, how to allow the efficient energy-saving more of high-power LED illuminating lamp work, and is more safe and reliable, life-span is longer, will be a new research topic.
Summary of the invention
The object of the present invention is to provide a kind of method of high-power LED illuminating lamp intelligent operation, can effectively control the working condition of LED illuminating lamp, it is moved with power save mode all the time.
The object of the present invention is achieved like this: a kind of method of high-power LED illuminating lamp intelligent operation, and its step is as follows:
(1), at first on the LED illuminating lamp, installs temperature sensor, luminance sensor, voltage sensor and current sensor respectively, signal output part with described each transducer links to each other with the analog quantity input of single-chip microcomputer respectively then, single-chip microcomputer links to each other with the constant current switch power supply of said LED illuminating lamp by its PWM output interface, and single-chip microcomputer links to each other with host computer by communication interface;
(2), single-chip microcomputer monitors the temperature and the luminance signal of LED illuminating lamp successively, if at first the working temperature of LED illuminating lamp is lower than set point in the single-chip microcomputer, then directly forwards next step (3) to; If the working temperature of LED illuminating lamp is higher than set point, then export the constant current switch power supply of a new pwm control signal by the PWM output interface to lamp by single-chip microcomputer, reduce the operating current of lamp;
(3), then monitor the luminance signal of LED illuminating lamp, if luminance signal less than the set point in the single-chip microcomputer, then directly forwards next step (4) to; If LED illuminating lamp surrounding environment light is brighter, luminance signal is greater than set point, then exports the constant current switch power supply of a new pwm control signal to lamp by single-chip microcomputer by the PWM output interface, reduces the operating current of lamp;
(4), at last monitor the timer of LED illuminating lamp, timer is arranged in the single-chip microcomputer or is arranged in the LED illuminating lamp, does not arrive as timing, then forwards above-mentioned steps (2) to, does circulation next time; If timing arrives, then export the constant current switch power supply of a new pwm control signal by the PWM output interface to lamp by single-chip microcomputer, reduce the operating current of lamp, thereby the LED illuminating lamp is moved with power save mode.
The inventive method has realized that high-power LED illuminating lamp is to the adaptive Based Intelligent Control of environment energy of living in, be mainly reflected in two aspects: 1, energy-conservation, utilization is installed in the light luminance transducer of LED lamp top, illumination situation in the monitoring lamp environment of living in, if light is dark, the LED lamp moves full power, with the illumination that is up to state standards and requires.If surrounding environment light is bright, certain illumination is arranged, then do not need LED lamp full power operation, thereby reach the high-power LED illuminating lamp purpose of energy saving that is in operation.The outdoor lighting high-power LED illuminating lamp, utilize a timer of its inside, when timing arrives, high-power LED illumination can change the half-power operating state over to, as Pedestrians and vehicles after midnight when rare, suitably reduce the illumination of high-power LED illuminating lamp, make lamp be in half-power illumination work state, reach purpose of energy saving.2, reliable, though the led chip life-span is long, working temperature can not be too high, otherwise with very fast generation light decay, when temperature reaches 120 °, led chip will lose efficacy.In order to ensure led chip be in operation not too high generation light decay of Yin Wendu and inefficacy, must prevent firmly that the led chip condition of overhigh temperature from taking place, this just must be at the run duration of whole LED lamp, ceaselessly monitor the temperature of lamp, as when reaching set point, then should reduce the operating current of LED lamp immediately, and otherwise stop circulatory monitoring and control, in the scope of temperature in set point.
This method by single-chip microcomputer by being installed in the temperature sensor on the LED illuminating lamp, luminance sensor and timer, successively to the working temperature of LED illuminating lamp, brightness detects respectively, if working temperature and brightness value have one to be higher than set point, then limit by the operating current of PWM port the LED illuminating lamp by single-chip microcomputer, reduce the power consumption of illuminating lamp, otherwise again by the timing of single-chip microcomputer monitor timer, if timing arrives, then reduce the operating current of LED illuminating lamp, reduce its power consumption, if timing does not arrive, the working temperature of duplicate detection illuminating lamp more then, brightness, so periodic duty.Thereby make the inventive method can effectively control the working condition of LED illuminating lamp all the time, accomplish low power operation.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing.
Fig. 1 is a syndeton block diagram of the present invention;
Fig. 2 is the control flow chart of the inventive method.
Embodiment
A kind of method of high-power LED illuminating lamp intelligent operation, its step is as follows:
(1), as shown in Figure 1 and Figure 2, at first on the LED illuminating lamp, install temperature sensor, luminance sensor, voltage sensor and current sensor respectively, signal output part with described each transducer links to each other with the analog quantity input of single-chip microcomputer respectively then, single-chip microcomputer links to each other with the constant current switch power supply of said LED illuminating lamp by its PWM output interface, and single-chip microcomputer links to each other with host computer by communication interface.
The communication interface that adopts has two effects; 1, can monitor operating current, operating voltage, radiator temperature, the ambient brightness of operating high-power LED illuminating lamp at any time, thereby judge whether operation control has deviation, if finding has deviation, can make amendment to database, so that operation control can be more accurate.2, can form a dcs with host computer, carry out the digital management of high-power LED illuminating lamp, as monitoring the ruuning situation of every lamp in real time; Can adjust the illumination of every lamp arbitrarily; Can realize lighting successively and extinguishing successively of lamp; Outside light can be according to the time that length was adjusted bright lamp and turned off the light automatically sunshine.
(2), single-chip microcomputer monitors the temperature and the luminance signal of LED illuminating lamp successively, if at first the working temperature of LED illuminating lamp is lower than set point in the single-chip microcomputer, then directly forwards next step (3) to; If the working temperature of LED illuminating lamp is higher than set point, then calculate the difference of measured value and set point, and the nearest deviation that monitors measured temperature for twice, data in they and the database are compared, make best response strategy then, promptly export the constant current switch power supply of a new pwm control signal by the PWM output interface, reduce the operating current of lamp to lamp by single-chip microcomputer;
(3), then monitor the luminance signal of LED illuminating lamp by single-chip microcomputer, if luminance signal less than the set point in the single-chip microcomputer, then directly forwards next step (4) to; If LED illuminating lamp surrounding environment light is brighter, luminance signal is greater than set point, then calculate the difference of brightness value and set point, and the nearest luminance deviation that monitors for twice, data in they and the database are compared, make best response strategy then, promptly export the constant current switch power supply of a new pwm control signal to lamp, the operating current of reduction lamp by the PWM output interface by single-chip microcomputer;
(4), at last monitored the timer of LED illuminating lamp by single-chip microcomputer, timer is arranged in the single-chip microcomputer or is arranged in the LED illuminating lamp, does not arrive as timing, then forwards above-mentioned steps (2) to, does circulation next time; If timing arrives, then export the constant current switch power supply of a new pwm control signal by the PWM output interface to lamp by single-chip microcomputer, reduce the operating current of lamp, the LED illuminating lamp has just entered half-power illumination work state like this, has reached to make the purpose of LED illuminating lamp with the power save mode operation when people late at night is rare.
Claims (1)
1, a kind of method of high-power LED illuminating lamp intelligent operation is characterized in that:
(1), at first on the LED illuminating lamp, installs temperature sensor, luminance sensor, voltage sensor and current sensor respectively, signal output part with described each transducer links to each other with the analog quantity input of single-chip microcomputer respectively then, single-chip microcomputer links to each other with the constant current switch power supply of said LED illuminating lamp by its PWM output interface, and single-chip microcomputer links to each other with host computer by communication interface;
(2), single-chip microcomputer monitors the temperature and the luminance signal of LED illuminating lamp successively, if at first the working temperature of LED illuminating lamp is lower than set point in the single-chip microcomputer, then directly forwards next step (3) to; If the working temperature of LED illuminating lamp is higher than set point, then export the constant current switch power supply of a new pwm control signal by the PWM output interface to lamp by single-chip microcomputer, reduce the operating current of lamp;
(3), then monitor the luminance signal of LED illuminating lamp, if luminance signal less than the set point in the single-chip microcomputer, then directly forwards next step (4) to; If LED illuminating lamp surrounding environment light is brighter, luminance signal is greater than set point, then exports the constant current switch power supply of a new pwm control signal to lamp by single-chip microcomputer by the PWM output interface, reduces the operating current of lamp;
(4), at last monitor the timer of LED illuminating lamp, timer is arranged in the single-chip microcomputer or is arranged in the LED illuminating lamp, does not arrive as timing, then forwards above-mentioned steps (2) to, does circulation next time; If timing arrives, then export the constant current switch power supply of a new pwm control signal by the PWM output interface to lamp by single-chip microcomputer, reduce the operating current of lamp, thereby the LED illuminating lamp is moved with power save mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101132613A CN101511145A (en) | 2009-03-19 | 2009-03-19 | Intelligent operation method of high-power LED lighting lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101132613A CN101511145A (en) | 2009-03-19 | 2009-03-19 | Intelligent operation method of high-power LED lighting lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101511145A true CN101511145A (en) | 2009-08-19 |
Family
ID=41003363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009101132613A Pending CN101511145A (en) | 2009-03-19 | 2009-03-19 | Intelligent operation method of high-power LED lighting lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101511145A (en) |
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101841962A (en) * | 2010-06-07 | 2010-09-22 | 上海合亚经贸有限公司 | LED lamp control method and device without light decay |
| CN102045930A (en) * | 2010-08-25 | 2011-05-04 | 李志明 | Light-emitting diode (LED) illuminating lamp monitoring and managing system |
| CN102128368A (en) * | 2010-11-03 | 2011-07-20 | 映瑞光电科技(上海)有限公司 | LED illumination device and drive method thereof |
| CN102170733A (en) * | 2011-05-05 | 2011-08-31 | 深圳市银盾科技开发有限公司 | Large power LED numerically controlled lighting method |
| CN102448212A (en) * | 2010-09-30 | 2012-05-09 | 苏州大学 | Roadhead control device and system for road lamps |
| CN102444819A (en) * | 2010-10-08 | 2012-05-09 | 瑞普韩国有限公司 | Lamp comprising temperature control and heat radiation functions |
| CN102595738A (en) * | 2012-03-07 | 2012-07-18 | 吉林建筑工程学院 | Illumination and energy-saving control system based on photoelectric sensor and pyroelectric technology |
| CN102591277A (en) * | 2012-01-31 | 2012-07-18 | 得实半导体照明(江门)有限公司 | Intelligent environment monitoring system |
| CN102685968A (en) * | 2011-03-15 | 2012-09-19 | 克拉玛依地威诺节能有限责任公司 | Switching power supply having communication, data collection and dimming control functions and used for LED lamp |
| CN101778514B (en) * | 2010-02-09 | 2013-03-27 | 浙江金基电子技术有限公司 | LED street lamp energy conversion and energy saving control device |
| CN103269546A (en) * | 2013-05-23 | 2013-08-28 | 中国科学院自动化研究所 | System and method for LED street lamp intelligent control |
| CN103298179A (en) * | 2012-02-22 | 2013-09-11 | 北京同步科技有限公司 | LED illuminating device and light failure control method thereof |
| CN103344924A (en) * | 2013-07-22 | 2013-10-09 | 石庆生 | Wireless transmission device and method of single LED lamp state detection in expressway tunnel |
| CN103458575A (en) * | 2013-08-22 | 2013-12-18 | 广西奥顺仪器有限公司 | Digital linear dimming method for high-power LED |
| WO2014071612A1 (en) * | 2012-11-09 | 2014-05-15 | Yao Wenbin | Device for improving luminous efficiency of led |
| CN103841712A (en) * | 2012-11-27 | 2014-06-04 | 中国科学院沈阳自动化研究所 | System and method for controlling LED light source |
| CN105407568A (en) * | 2015-11-24 | 2016-03-16 | 贵州剑河县复兴节能照明设备有限公司 | Method for reducing LED headlamp luminous decay |
| CN105636301A (en) * | 2014-10-31 | 2016-06-01 | 天津津航技术物理研究所 | Large-current switching amplification circuit employing PWM control |
| CN107452341A (en) * | 2017-06-30 | 2017-12-08 | 联想(北京)有限公司 | Screen luminance adjustment method and electronic equipment |
| CN107830475A (en) * | 2017-12-05 | 2018-03-23 | 国网安徽省电力公司池州供电公司 | A kind of intelligent wireless emergency light |
| CN114281106A (en) * | 2018-07-23 | 2022-04-05 | 深圳市大疆创新科技有限公司 | Searchlight control method and device, searchlight control device, aircraft and flight system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101078476A (en) * | 2007-06-08 | 2007-11-28 | 武汉盛世华龙科技有限公司 | Energy-saving LED road lamp head |
| CN101173757A (en) * | 2007-09-25 | 2008-05-07 | 东莞勤上光电股份有限公司 | Superheating protection method for LED road lamp |
| CN101334133A (en) * | 2007-06-29 | 2008-12-31 | 富士迈半导体精密工业（上海）有限公司 | Exterior illumination system |
-
2009
- 2009-03-19 CN CNA2009101132613A patent/CN101511145A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101078476A (en) * | 2007-06-08 | 2007-11-28 | 武汉盛世华龙科技有限公司 | Energy-saving LED road lamp head |
| CN101334133A (en) * | 2007-06-29 | 2008-12-31 | 富士迈半导体精密工业（上海）有限公司 | Exterior illumination system |
| CN101173757A (en) * | 2007-09-25 | 2008-05-07 | 东莞勤上光电股份有限公司 | Superheating protection method for LED road lamp |
Cited By (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101778514B (en) * | 2010-02-09 | 2013-03-27 | 浙江金基电子技术有限公司 | LED street lamp energy conversion and energy saving control device |
| CN101841962B (en) * | 2010-06-07 | 2013-06-19 | 上海合亚经贸有限公司 | LED lamp control method and device without light decay |
| CN101841962A (en) * | 2010-06-07 | 2010-09-22 | 上海合亚经贸有限公司 | LED lamp control method and device without light decay |
| CN102045930A (en) * | 2010-08-25 | 2011-05-04 | 李志明 | Light-emitting diode (LED) illuminating lamp monitoring and managing system |
| CN102448212A (en) * | 2010-09-30 | 2012-05-09 | 苏州大学 | Roadhead control device and system for road lamps |
| CN102444819A (en) * | 2010-10-08 | 2012-05-09 | 瑞普韩国有限公司 | Lamp comprising temperature control and heat radiation functions |
| CN102128368A (en) * | 2010-11-03 | 2011-07-20 | 映瑞光电科技(上海)有限公司 | LED illumination device and drive method thereof |
| CN102128368B (en) * | 2010-11-03 | 2013-03-27 | 映瑞光电科技(上海)有限公司 | LED illumination device and drive method thereof |
| CN102685968A (en) * | 2011-03-15 | 2012-09-19 | 克拉玛依地威诺节能有限责任公司 | Switching power supply having communication, data collection and dimming control functions and used for LED lamp |
| CN102170733A (en) * | 2011-05-05 | 2011-08-31 | 深圳市银盾科技开发有限公司 | Large power LED numerically controlled lighting method |
| CN102591277A (en) * | 2012-01-31 | 2012-07-18 | 得实半导体照明(江门)有限公司 | Intelligent environment monitoring system |
| CN103298179B (en) * | 2012-02-22 | 2016-03-02 | 北京同步科技有限公司 | LED light device and light decay control method thereof |
| CN103298179A (en) * | 2012-02-22 | 2013-09-11 | 北京同步科技有限公司 | LED illuminating device and light failure control method thereof |
| CN102595738A (en) * | 2012-03-07 | 2012-07-18 | 吉林建筑工程学院 | Illumination and energy-saving control system based on photoelectric sensor and pyroelectric technology |
| WO2014071612A1 (en) * | 2012-11-09 | 2014-05-15 | Yao Wenbin | Device for improving luminous efficiency of led |
| CN103841712A (en) * | 2012-11-27 | 2014-06-04 | 中国科学院沈阳自动化研究所 | System and method for controlling LED light source |
| CN103841712B (en) * | 2012-11-27 | 2015-09-09 | 中国科学院沈阳自动化研究所 | A kind of LED light source control system and method |
| CN103269546B (en) * | 2013-05-23 | 2015-10-28 | 中国科学院自动化研究所 | A kind of LED street lamp intelligent control and method thereof |
| CN103269546A (en) * | 2013-05-23 | 2013-08-28 | 中国科学院自动化研究所 | System and method for LED street lamp intelligent control |
| CN103344924B (en) * | 2013-07-22 | 2015-11-18 | 石庆生 | Freeway tunnel single LED lamp state-detection radio transmitting device and method |
| CN103344924A (en) * | 2013-07-22 | 2013-10-09 | 石庆生 | Wireless transmission device and method of single LED lamp state detection in expressway tunnel |
| CN103458575A (en) * | 2013-08-22 | 2013-12-18 | 广西奥顺仪器有限公司 | Digital linear dimming method for high-power LED |
| CN103458575B (en) * | 2013-08-22 | 2016-05-18 | 广西奥顺仪器有限公司 | Great power LED digital linear light-dimming method |
| CN105636301A (en) * | 2014-10-31 | 2016-06-01 | 天津津航技术物理研究所 | Large-current switching amplification circuit employing PWM control |
| CN105407568A (en) * | 2015-11-24 | 2016-03-16 | 贵州剑河县复兴节能照明设备有限公司 | Method for reducing LED headlamp luminous decay |
| CN107452341A (en) * | 2017-06-30 | 2017-12-08 | 联想(北京)有限公司 | Screen luminance adjustment method and electronic equipment |
| CN107830475A (en) * | 2017-12-05 | 2018-03-23 | 国网安徽省电力公司池州供电公司 | A kind of intelligent wireless emergency light |
| CN114281106A (en) * | 2018-07-23 | 2022-04-05 | 深圳市大疆创新科技有限公司 | Searchlight control method and device, searchlight control device, aircraft and flight system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101511145A (en) | Intelligent operation method of high-power LED lighting lamp | |
| CN202603009U (en) | Internet of things LED streetlight energy saving control system | |
| CN103269546B (en) | A kind of LED street lamp intelligent control and method thereof | |
| CN101621873B (en) | Intelligent driving system and energy-saving control method of street lamp based on LED array | |
| CN201001214Y (en) | Intelligent wireless network type LED road lamp | |
| CN204598421U (en) | A kind of intelligent power saving LED street lamp control system | |
| CN201805574U (en) | Intelligent energy-saving lamp | |
| CN203104866U (en) | Energy-saving street lamp control device | |
| CN103889122B (en) | A kind of control system of solar street light | |
| CN103096585A (en) | Light emitting diode (LED) intelligent lighting and energy saving control system based on web of things and method | |
| CN201039533Y (en) | A time division and automatic LED road lamp controller | |
| CN201967192U (en) | Energy-saving control system for LED (light-emitting diode) road lamps | |
| CN104684206A (en) | LED (Light-Emitting Diode) street lamp illumination system and LED street lamp illumination method | |
| CN201582689U (en) | Intelligent electricity-saving LED street lamp | |
| CN203261530U (en) | Light modulation color modulation type LED solar energy street lamp controller | |
| CN215268793U (en) | Intelligent illumination control system for night street lamp | |
| CN201491334U (en) | Device for wirelessly controlling lamplight | |
| CN204733412U (en) | A kind of novel intelligent LED street lamp | |
| CN203301813U (en) | Led street lamp intelligent control system | |
| CN202958026U (en) | Energy-saving outdoor illumination control system | |
| CN201688296U (en) | Illuminance streetlight system | |
| CN202475874U (en) | Light-operated switch with operational amplifier in cooperation with silicon controlled rectifier | |
| CN204291522U (en) | Solar street lamp controller | |
| CN205179440U (en) | Urban road lamp controller | |
| CN204498421U (en) | A kind of Intelligent LED lighting system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20090819 |