CN104935853A - Wireless projector capable of radiating heat based on temperature induction - Google Patents
Wireless projector capable of radiating heat based on temperature induction Download PDFInfo
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- CN104935853A CN104935853A CN201510354153.0A CN201510354153A CN104935853A CN 104935853 A CN104935853 A CN 104935853A CN 201510354153 A CN201510354153 A CN 201510354153A CN 104935853 A CN104935853 A CN 104935853A
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Abstract
The present invention discloses a wireless projector capable of radiating heat based on temperature induction, comprising a temperature sensor, a PWM control circuit, a fan, a wireless communication module, a storage module, a control module, an image processing module, a light modulation module and a projecting lens, wherein the fan is electrically connected with the control module through the PWM control circuit; the control module is electrically connected with the temperature sensor, the wireless communication module and the storage module; and one end of the image processing module is connected with the control module, and the other end of the image processing module is connected with the projecting lens through the light modulation module. The present invention has a simple structure, saves energy, reduces the emission, avoids the phenomenon of poor contact easy to occur in wired connection, and can autonomously set the picture proportion of a projected image.
Description
Technical field
The present invention relates to projection field, particularly relate to a kind of Wireless projector based on temperature sense heat radiation.
Background technology
Projecting apparatus, under taking in the policy of national promote domestic demands and the people background constantly promoted, the enforcement of Rural Culture ethnic minority regions has promoted the quick growth of China's Projector Market further.According to statistics, within 2010, China's Projector Market shipment amount scale reaches 1,280,000, compares 2009 and increases by 43.6%.Think, within 2011, China's Projector Market will keep quick growth, and annual shipment amount will reach 1,670,000, year rate of growth to be about projecting apparatus be 30%.The five-year, the compound growth rate of China's Projector Market will reach 17.1%.
China projector's product consumption market mainly concentrates on the large-and-medium size cities such as the more flourishing North China of economy, East China, south China.Education, commercial affairs, government, home entertaining are the four large main consumer groups supporting Chinese projector industry.Make a general survey of China's Projector Market.No matter from the quantity of product, quality or kind aspect, all reach certain maturity, the popularization and application of product makes projector change to mass product from comparatively professional display device in the psychological positioning of user, the marketing scale of industry constantly expands, 2010, China's Projector Market sales volume is 1,100,000, compares 2009 and increases by 37.5%.From this 10 years China's Projector Market developments, China's Projector Market scale increases by 18 times, and its average growth rate per annum is 39.14%, and industry is in high-speed development period.
From the development form in industry future, education is still industry future development pillar field.According to statistics, institute of total kindergarten 12.91 ten thousand, the whole nation in 2010, institute of primary school 39.42 ten thousand, general high school 7.90 ten thousand institute, institute of common medium universities and colleges 3047, institute of higher education school 1778, be equipped with a projector by each classroom to calculate, according to related data display China only education sector market capacity just reach more than 1,100 ten thousand, if calculated according to projection occupation rate, projector can account for about 14%-28% (not comprising market maintenance), and the real sales volume of education market in 2010 is less than 500,000.
Secondly, the development in commercial projection market is also the key strength of left and right projector market development.Although China's commercial affairs projection market, in rapid expansion, is estimated according to relevant survey institute, in future, medium-sized and small enterprises quantity will keep the growth rate of 7%-8%, and within 2012, medium-sized and small enterprises sum will reach 5,000 ten thousand, industry development Bright Prospect.In addition, with regard to domestic at present, wealthy family's quantity of assets more than 1,000,000 can reach more than 200 ten thousand, and some elite, white collar are comparatively large for the demand of the quality of life, amusement equipment, and following household application market has a high potential.
The wind speed of the general radiator fan of existing projecting apparatus fixing, winter or temperature lower in still operate, waste energy.The ratio of existing its projected picture of projecting apparatus generally all cannot adjust, no matter the ratio of the image of signal source is how many, the image of projection is all the same, some producer adopts the mode of front end convergent-divergent to remove to change the aspect ratio of projection output, be easy to like this cause the defects such as light leak, picture are empty, profile sawtooth is serious, greatly have impact on drop shadow effect.
In addition, during existing projecting apparatus Received signal strength source images, be all generally by wired connection, often there will be the phenomenon of loose contact.
Summary of the invention
Technical problem to be solved by this invention is for defect involved in background technology, provides a kind of Wireless projector based on temperature sense heat radiation.
The present invention is for solving the problems of the technologies described above by the following technical solutions:
Based on a Wireless projector for temperature sense heat radiation, comprise temperature sensor, pwm control circuit, fan, wireless communication module, memory module, control module, image processing module, optical modulator module and projection lens;
Described fan is electrically connected by pwm control circuit and described control module; Described control module is electrically connected with temperature sensor, wireless communication module, memory module respectively; Described image processing module one end is connected with described control module, and the other end is connected with described projection lens by optical modulator module;
Described temperature sensor is arranged on projecting apparatus inside, for responding to the temperature of projecting apparatus inside, and the temperature information sensed is passed to described control module;
Described fan is arranged on projecting apparatus inside, for projector radiating;
Described pwm control circuit is for adjusting the rotating speed of fan;
Described wireless communication module for receiving outside digital picture information, and is passed to control module;
Described memory module plays the ratio of agreement and projector picture for storing;
Described control module is used for receiving outside digital picture information according to the broadcasting protocol integrated test system wireless communication module in memory module, and is adjusted the rotating speed of described fan by pwm control circuit according to the temperature information received;
Described image processing module, for regulating the aspect ratio of the digital picture received, makes it identical with the ratio of projector picture in memory module;
Digital picture after described optical modulator module is used for image processing module process carries out light modulation;
Described projection lens is used for the light after to modulation and projects.
The adjustable range of aspect ratio is 16:10,16:9 or 4:3.For example, signal pattern resolution is 1280*720, its resolution can be converted into 1280*800 or 1024*768 by image processing module.
As a kind of further prioritization scheme of Wireless projector based on temperature sense heat radiation of the present invention, the processor of described control module adopts ARM series monolithic.
As a kind of further prioritization scheme of Wireless projector based on temperature sense heat radiation of the present invention, the processor of described control module adopts SAA7750 single-chip microcomputer.
As a kind of further prioritization scheme of Wireless projector based on temperature sense heat radiation of the present invention, described temperature sensor adopts IC temperature sensor.
As a kind of further prioritization scheme of Wireless projector based on temperature sense heat radiation of the present invention, described IC temperature sensor adopts DS18B20 type temperature sensor.
As a kind of further prioritization scheme of Wireless projector based on temperature sense heat radiation of the present invention, described broadcasting agreement adopts DLNA agreement.
The present invention adopts above technical scheme compared with prior art, has following technique effect:
1. structure is simple, easy to use;
2. wireless transmission picture, convenient, avoids the phenomenon that loose contact easily appears in wired connection;
3. according to the rotating speed of the temperature controlled fan of projecting apparatus inside, energy-saving and emission-reduction;
4. independently can set the aspect ratio of projected image.
Accompanying drawing explanation
Fig. 1 is module diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:
As shown in Figure 1, the invention discloses a kind of Wireless projector based on temperature sense heat radiation, comprise temperature sensor, pwm control circuit, fan, wireless communication module, memory module, control module, image processing module, optical modulator module and projection lens;
Described fan is electrically connected by pwm control circuit and described control module; Described control module is electrically connected with temperature sensor, wireless communication module, memory module respectively; Described image processing module one end is connected with described control module, and the other end is connected with described projection lens by optical modulator module;
Described temperature sensor is arranged on projecting apparatus inside, for responding to the temperature of projecting apparatus inside, and the temperature information sensed is passed to described control module;
Described fan is arranged on projecting apparatus inside, for projector radiating;
Described pwm control circuit is for adjusting the rotating speed of fan;
Described wireless communication module for receiving outside digital picture information, and is passed to control module;
Described memory module plays the ratio of agreement and projector picture for storing;
Described control module is used for receiving outside digital picture information according to the broadcasting protocol integrated test system wireless communication module in memory module, and is adjusted the rotating speed of described fan by pwm control circuit according to the temperature information received;
Described image processing module, for regulating the aspect ratio of the digital picture received, makes it identical with the ratio of projector picture in memory module;
Digital picture after described optical modulator module is used for image processing module process carries out light modulation;
Described projection lens is used for the light after to modulation and projects.
The processor of described control module adopts ARM series monolithic, preferential employing SAA7750 single-chip microcomputer.
Described temperature sensor adopts IC temperature sensor, preferential employing DS18B20 type temperature sensor.
Described broadcasting agreement adopts DLNA agreement.
The adjustable range of aspect ratio is 16:10,16:9 or 4:3.For example, signal pattern resolution is 1280*720, its resolution can be converted into 1280*800 or 1024*768 by image processing module.
Those skilled in the art of the present technique are understandable that, unless otherwise defined, all terms used herein (comprising technical term and scientific terminology) have the meaning identical with the general understanding of the those of ordinary skill in field belonging to the present invention.Should also be understood that those terms defined in such as general dictionary should be understood to have the meaning consistent with the meaning in the context of prior art, unless and define as here, can not explain by idealized or too formal implication.
Above-described embodiment; object of the present invention, technical scheme and beneficial effect are further described; be understood that; the foregoing is only the specific embodiment of the present invention; be not limited to the present invention; within the spirit and principles in the present invention all, any amendment made, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1., based on a Wireless projector for temperature sense heat radiation, it is characterized in that, comprise temperature sensor, pwm control circuit, fan, wireless communication module, memory module, control module, image processing module, optical modulator module and projection lens;
Described fan is electrically connected by pwm control circuit and described control module; Described control module is electrically connected with temperature sensor, wireless communication module, memory module respectively; Described image processing module one end is connected with described control module, and the other end is connected with described projection lens by optical modulator module;
Described temperature sensor is arranged on projecting apparatus inside, for responding to the temperature of projecting apparatus inside, and the temperature information sensed is passed to described control module;
Described fan is arranged on projecting apparatus inside, for projector radiating;
Described pwm control circuit is for adjusting the rotating speed of fan;
Described wireless communication module for receiving outside digital picture information, and is passed to control module;
Described memory module plays the ratio of agreement and projector picture for storing;
Described control module is used for receiving outside digital picture information according to the broadcasting protocol integrated test system wireless communication module in memory module, and is adjusted the rotating speed of described fan by pwm control circuit according to the temperature information received;
Described image processing module, for regulating the aspect ratio of the digital picture received, makes it identical with the ratio of projector picture in memory module;
Digital picture after described optical modulator module is used for image processing module process carries out light modulation;
Described projection lens is used for the light after to modulation and projects.
2. the Wireless projector based on temperature sense heat radiation according to claim 1, is characterized in that, the processor of described control module adopts ARM series monolithic.
3. the Wireless projector based on temperature sense heat radiation according to claim 2, is characterized in that, the processor of described control module adopts SAA7750 single-chip microcomputer.
4. the Wireless projector based on temperature sense heat radiation according to claim 1, is characterized in that, described temperature sensor adopts IC temperature sensor.
5. the Wireless projector based on temperature sense heat radiation according to claim 4, is characterized in that, described IC temperature sensor adopts DS18B20 type temperature sensor.
6. the Wireless projector based on temperature sense heat radiation according to claim 1, is characterized in that, described broadcasting agreement adopts DLNA agreement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510354153.0A CN104935853A (en) | 2015-06-25 | 2015-06-25 | Wireless projector capable of radiating heat based on temperature induction |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510354153.0A CN104935853A (en) | 2015-06-25 | 2015-06-25 | Wireless projector capable of radiating heat based on temperature induction |
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| CN201510354153.0A Pending CN104935853A (en) | 2015-06-25 | 2015-06-25 | Wireless projector capable of radiating heat based on temperature induction |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105317723A (en) * | 2015-11-13 | 2016-02-10 | 成都市极米科技有限公司 | Projector cooling fan control system and method |
| CN109089092A (en) * | 2018-08-09 | 2018-12-25 | 上海常仁信息科技有限公司 | A kind of automatic projection system and method based on robot |
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| CN102854725A (en) * | 2011-06-28 | 2013-01-02 | 中强光电股份有限公司 | Projection device |
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| CN204795348U (en) * | 2015-06-25 | 2015-11-18 | 苏州市英富美欣科技有限公司 | Wireless display appearance based on temperature -sensing heat dissipation |
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| CN101315511A (en) * | 2007-05-30 | 2008-12-03 | 精工爱普生株式会社 | Projector, image display system and image processing system |
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| CN101435977A (en) * | 2007-11-12 | 2009-05-20 | 鸿富锦精密工业（深圳）有限公司 | Projector and overheating protection method thereof |
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| CN109089092A (en) * | 2018-08-09 | 2018-12-25 | 上海常仁信息科技有限公司 | A kind of automatic projection system and method based on robot |
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Application publication date: 20150923 |
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