CN105700276B - It is automatically positioned projecting apparatus and automatic positioning method - Google Patents

It is automatically positioned projecting apparatus and automatic positioning method Download PDF

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Publication number
CN105700276B
CN105700276B CN201610211049.0A CN201610211049A CN105700276B CN 105700276 B CN105700276 B CN 105700276B CN 201610211049 A CN201610211049 A CN 201610211049A CN 105700276 B CN105700276 B CN 105700276B
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CN
China
Prior art keywords
projecting apparatus
camera lens
module
light sensor
white light
Prior art date
Application number
CN201610211049.0A
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Chinese (zh)
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CN105700276A (en
Inventor
李飞浪
韩涛
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浙江大学
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Priority to CN201610211049.0A priority Critical patent/CN105700276B/en
Publication of CN105700276A publication Critical patent/CN105700276A/en
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Publication of CN105700276B publication Critical patent/CN105700276B/en

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    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00Projectors or projection-type viewers; Accessories therefor
    • G03B21/14Details
    • G03B21/142Adjusting of projection optics

Abstract

Projecting apparatus and automatic positioning method, including projecting apparatus fuselage, camera lens, camera adjusting mechanism, light sensor and communication module are automatically positioned the invention discloses one kind;The camera lens is arranged in camera adjusting mechanism, and the camera adjusting mechanism is arranged on projecting apparatus fuselage;The camera lens is connected with projecting apparatus fuselage;The light sensor is connected with communication module, and communication module with projecting apparatus fuselage by being wirelessly connected.The present invention can realize the automatic calibration of projector position, without manually adjusting projecting apparatus before each use, be easy to use quick, and be automatically positioned accurate simple.

Description

It is automatically positioned projecting apparatus and automatic positioning method

Technical field

Projecting apparatus and automatic positioning method are automatically positioned the present invention relates to a kind of projecting apparatus, more particularly to one kind.

Background technology

The today popularized in projector equipment, projecting apparatus has been introduced into all trades and professions, and school sessions, company's meeting, project is answered Debate, be required to use projecting apparatus under various occasions.And present projecting apparatus does not have self-calibration function, each projecting apparatus or screen Position is required for manually being aligned with after being moved, and the crooked situation of picture often occurs, using comparatively laborious.

The content of the invention

For existing technological deficiency, the present invention provides one kind and is automatically positioned projecting apparatus and automatic positioning method, projecting apparatus Come automatic correction projector position by the light sensor on projection screen, picture completely, is clearly projected to projection Device on curtain.

In order to achieve the above object, the technical solution adopted in the present invention is as follows:One kind is automatically positioned projecting apparatus, including throws Shadow instrument fuselage, camera lens, camera adjusting mechanism, light sensor and communication module;The camera lens is arranged in camera adjusting mechanism, The camera adjusting mechanism is arranged on projecting apparatus fuselage;The camera lens is connected with projecting apparatus fuselage;The light sensor with Communication module is connected, and communication module with projecting apparatus fuselage by being wirelessly connected.

The further camera adjusting mechanism include horizontal mobile mechanism, movable mechanism, vertical shift mechanism and Lens bracket;The horizontal mobile mechanism includes moving horizontally guide rail and the first micromachine, and the first micromachine is installed on throwing Shadow instrument fuselage interior;Move horizontally guide rail and be installed on projecting apparatus front fuselage, be connected by rack-and-pinion with the first micromachine, Realization is moved horizontally;The movable mechanism includes movable guide rail and the second micromachine;Second micromachine Fuselage interior is installed on, the movable guide rail, which is installed on, to be moved horizontally on guide rail, passes through rack-and-pinion and the second micro electric Machine is connected, and realizes movable;The vertical shift mechanism includes lens bracket and miniature steering wheel, and the miniature steering wheel is installed on On movable guide rail;The lens bracket is installed on the steering wheel of miniature steering wheel, and miniature steering wheel can be followed to rotate;The mirror Head is installed on lens bracket;First micromachine, miniature steering wheel and the second micromachine are connected with projecting apparatus fuselage.

Further, the projector instrument fuselage include optical texture module, radiating module, governor circuit module, Motor control module and wireless communication module;Wherein, the optical texture module, radiating module, motor control module and wireless Communication module is connected with governor circuit module;The governor circuit module control image is exported and according to wireless telecommunications information Regulation motor control signal;The optical texture module is connected with camera lens, and the electronic signal of governor circuit module is converted into light Signal is learned to project on projection screen by camera lens;The radiating module radiates for body;The wireless communication module and communication Module is connected, for the communication between projection screen and projecting apparatus;The motor control module respectively with the first micromachine, miniature Steering wheel and the second micromachine are connected, and are moved according to the signal control motor of governor circuit module.

A kind of automatic positioning method using above-mentioned projecting apparatus, specifically includes following steps:

(1) four light sensors are installed in the corner of projection screen, projecting apparatus be fixed on close in front of projection screen center The position of focal length;

(2) projecting apparatus is started, camera lens sends four summits that four road white lights point to rectangle first, if light sensor does not connect White light is received, then the first micromachine of motor control module controlled level travel mechanism and the miniature steering wheel of vertical shift mechanism Rotate, carry out whole audience scanning, specific method is as follows:

(2.1) camera lens is first moved to most lower left, then vertical shift mechanism moves up camera lens to the top;

(2.2) being moved right again with horizontal mobile mechanism, it is most lower camera lens to be moved to vertical shift mechanism again after certain length Side;

(2.3) repeat step (2.1) and step (2.2) are until there is a light sensor to receive white light or move horizontally Mechanism reaches rightmost;

(2.4) if horizontal mobile mechanism reaches rightmost still without white light is received, movable device is utilized by mirror Head one segment distance of reach, again repeat step (2.1) and step (2.2);

(2.5) after thering is a light sensor to receive white light;

The movable device of (2.5.1) adjustment, makes track out, when the light sensor for receiving white light originally connects again When can not receive, stop the movable device of adjustment;

(2.5.2) makes camera lens be adjusted by a small margin with vertical two direction in level using horizontally moving device and vertical shift device It is whole, until receiving white light again;

And then repeat step (2.5.1) and step (2.5.2) are until there is two light sensors to receive white light (2.6);

(3) after having two light sensors to receive white light, in the case where length-width ratio is constant, rectangular position is Determine completely, i.e., lens location has been adjusted, now adjusting hot spot on lens focus, projecting apparatus can mutually strain big or diminish, Illumination intensity is received according to light sensor and can determine whether focal length situation;Reached when light sensor receives intensity of illumination During to maximum, illustrate that Focussing is completed, projecting apparatus completes the work that is automatically positioned and focuses.

The present invention has an advantageous effect in that compared with background technology:The automatic calibration of projector position, nothing can be realized Projecting apparatus is manually adjusted before needing each use, is easy to use quick, and is automatically positioned accurate simple.

Brief description of the drawings

Fig. 1 is the front view of projecting apparatus of the present invention;

Fig. 2 is the side view of projecting apparatus of the present invention;

Fig. 3 is the top view of projecting apparatus of the present invention;

Fig. 4 is the plan of projection screen of the present invention;

Wherein:It is projecting apparatus fuselage 1, horizontal mobile mechanism 2, vertical shift mechanism 3, camera lens 4, the first micromachine 5, front and rear Travel mechanism 6, curtain 7, light sensor 8, communication module 9, miniature steering wheel 10, the second micromachine 11.

Embodiment

The present invention is further illustrated with reference to the accompanying drawings and examples.

As Figure 1-3, the present invention includes projecting apparatus fuselage 1, camera lens 4, camera adjusting mechanism, light sensor 8 and led to Interrogate module 9;The camera lens is arranged in camera adjusting mechanism, and the camera adjusting mechanism is arranged on projecting apparatus fuselage 1;It is described Camera lens is connected with projecting apparatus fuselage 1;The light sensor 8 is connected with communication module 9, communication module 9 by wirelessly with projection Instrument fuselage 1 is connected.

The camera adjusting mechanism includes horizontal mobile mechanism 2, vertical shift mechanism 3, movable mechanism 6 and camera lens branch Frame;The horizontal mobile mechanism 2 includes moving horizontally guide rail and the first micromachine 5, and the first micromachine 5 is installed on projecting apparatus Inside fuselage 1;Move horizontally guide rail and be installed on the front end of projecting apparatus fuselage 1, be connected by rack-and-pinion with the first micromachine 5, Realization is moved horizontally;The movable mechanism 6 includes movable guide rail and the second micromachine 11;Second micro electric Machine 11 is installed on fuselage interior, and the movable guide rail, which is installed on, to be moved horizontally on guide rail, micro- with second by rack-and-pinion Type motor 11 is connected, and realizes movable;The vertical shift mechanism 3 includes lens bracket and miniature steering wheel 10, described miniature Steering wheel 10 is installed on movable guide rail;The lens bracket is installed on the steering wheel of miniature steering wheel 10, can be followed miniature Steering wheel 10 is rotated;The camera lens 4 is installed on lens bracket;First micromachine 5, the micro electric of miniature steering wheel 10 and second Machine 11 is connected with projecting apparatus fuselage 1.

The projector instrument fuselage 1 includes optical texture module, radiating module, governor circuit module, motor control Module and wireless communication module;Wherein, the optical texture module, radiating module, motor control module and wireless communication module It is connected with governor circuit module;The governor circuit module control image is exported and according to wireless telecommunications information regulation motor Control signal, the TQFP100 that can be produced using Texas Instrument, but not limited to this;The optical texture module and the phase of camera lens 4 Even, the electronic signal of governor circuit module is converted into optical signalling and projected to by camera lens 4 on projection screen, Dezhou can be selected The 1910-6103W modules of instrument production, but not limited to this;The radiating module radiates for body, can be assisted using Taiwan auspiciousness The AD0612HX-H93 type radiator fans of production, but not limited to this;The wireless communication module is connected with communication module 9, is used for Communication between projection screen and projecting apparatus, the NRF24L01 model chips that can be produced using Risym companies, but not limited to this; The motor control module is connected with the first micromachine 5, the micromachine 11 of miniature steering wheel 10 and second respectively, according to master control The signal control motor motion of circuit module, can use ST Microelectronics's L298N control chips, but not limited to this.

As shown in figure 4, be respectively mounted four light sensors 8 in the corner of projection screen 7, and it is mounted with top communication Module 9, communication module 9 is inputted by light sensor 8, and will export the wireless telecommunications mould being wirelessly sent in projecting apparatus fuselage 1 Block;The NRF24L01 model chips that communication module 9 can be produced using Risym companies, but not limited to this.

The course of work of the present invention is as follows:

(1) four light sensors 8 are installed in the corner of projection screen 7, projecting apparatus is fixed in front of projection screen center and connect The position of nearly focal length;

(2) projecting apparatus is started, camera lens 4 sends four summits that four road white lights point to rectangle first, if light sensor 8 is not White light is received, then the first micromachine 5 of motor control module controlled level travel mechanism 2 and vertical shift mechanism 3 is micro- Type steering wheel 10 is rotated, and carries out whole audience scanning, and specific method is as follows:

(2.1) camera lens 4 is first moved to most lower left, then vertical shift mechanism 3 moves up camera lens 4 to the top;

(2.2) moved right and camera lens 4 vertical shift mechanism 3 moved to again after certain length with horizontal mobile mechanism 2 again Bottom;

(2.3) repeat step (2.1) and step (2.2) are until there is a light sensor 8 to receive white light or level shifting Motivation structure reaches rightmost;

(2.4), will using movable device 6 if horizontal mobile mechanism 2 reaches rightmost still without white light is received Camera lens 4 moves forward a segment distance, again repeat step (2.1) and step (2.2);

(2.5) after thering is a light sensor 8 to receive white light;

The movable device 6 of (2.5.1) adjustment, makes to move after camera lens 4, when receiving the light sensor 8 of white light originally again It is secondary when not receiving, stop the movable device 6 of adjustment;

(2.5.2) makes camera lens 4 small size in level and vertical two direction using horizontally moving device 2 and vertical shift device 3 Degree adjustment, until receiving white light again;

And then repeat step (2.5.1) and step (2.5.2) are until there is two light sensors 8 to receive white light (2.6);

(3) after thering are two light sensors 8 to receive white light, in the case where length-width ratio is constant, rectangular position Determine completely, i.e. the position of camera lens 4 has been adjusted, now adjusting hot spot on the focal length of camera lens 4, projecting apparatus can mutually strain big or become It is small, illumination intensity is received according to light sensor 8 and can determine whether focal length situation;When light sensor 8 receives illumination When intensity reaches maximum, illustrate that Focussing is completed, projecting apparatus completes the work that is automatically positioned and focuses, can begun to use.

Claims (1)

1. a kind of be automatically positioned being automatically positioned and focus adjustment method for projecting apparatus, the projecting apparatus that is automatically positioned includes projecting apparatus machine Body, camera lens, camera adjusting mechanism, light sensor and communication module;The camera lens is arranged in camera adjusting mechanism, the mirror Head governor motion is arranged on projecting apparatus fuselage;The camera lens is connected with projecting apparatus fuselage;The light sensor and communication mould Block is connected, and communication module with projecting apparatus fuselage by being wirelessly connected;
The camera adjusting mechanism includes horizontally moving device, movable device, vertical shift device and lens bracket;It is described Horizontally moving device includes moving horizontally guide rail and the first micromachine, and the first micromachine is installed on projecting apparatus fuselage interior; Move horizontally guide rail and be installed on projecting apparatus front fuselage, be connected by rack-and-pinion with the first micromachine, realization is moved horizontally Guide rail is moved horizontally;The movable device includes movable guide rail and the second micromachine;Second micro electric Machine is installed on projecting apparatus fuselage interior, and the movable guide rail, which is installed on, to be moved horizontally on guide rail, passes through rack-and-pinion and the Two micromachines are connected, and realize the movable of movable guide rail;The vertical shift device includes lens bracket and miniature Steering wheel, the miniature steering wheel is installed on movable guide rail;The lens bracket is installed on the steering wheel of miniature steering wheel, can be with Miniature steering wheel is followed to rotate;The camera lens is installed on lens bracket;First micromachine, miniature steering wheel and second are miniature Motor is connected with projecting apparatus fuselage;
The projecting apparatus fuselage includes optical texture module, radiating module, governor circuit module, motor control module and channel radio Interrogate module;Wherein, the optical texture module, radiating module, motor control module and wireless communication module be and governor circuit Module is connected;The governor circuit module control image is exported and according to wireless telecommunications information regulation motor control signal;Institute State optical texture module with camera lens to be connected, the electronic signal of governor circuit module is converted into optical signalling is projected to by camera lens On projection screen;The radiating module is used for the radiating of projecting apparatus fuselage;The wireless communication module is connected with communication module, is used for Communication between projection screen and projecting apparatus;The motor control module respectively with the first micromachine, miniature steering wheel and second Micromachine is connected, and is moved according to the motor control signal controlled motor of governor circuit module;
Characterized in that, specifically including following steps:
(1)A light sensor is respectively mounted at each angle of the corner of projection screen, projecting apparatus is fixed in projection screen Close to the position of focal length in front of the heart;
(2)Start projecting apparatus, camera lens sends four road white lights and points to projection screen first, and per pass white light points to one jiao of projection screen, if Light sensor does not receive white light, then the first micromachine and vertical shift of motor control module controlled level mobile device The miniature steering wheel of device is rotated, and carries out whole audience scanning, and specific method is as follows:
(2.1)Camera lens is first moved to most lower left, then camera lens is moved up to the top with vertical shift device;
(2.2)Horizontally moving device is moved right after certain length, then camera lens moved to bottom with vertical shift device;
(2.3)Horizontally moving device is moved right after certain length, then camera lens moved to the top with vertical shift device;
(2.4)Repeat step(2.2)And step(2.3)Until there is a light sensor to receive white light or horizontally moving device Reach rightmost;
(2.5)If horizontally moving device reaches rightmost still without white light is received, using movable device by before camera lens A segment distance is moved, again repeat step(2.1)And step(2.3);
(2.6)After thering is a light sensor to receive white light;
(2.6.1)The movable device of adjustment, makes track out, when the light sensor for receiving white light originally is received not again During to white light, stop the movable device of adjustment;
(2.6.2)Camera lens is set to be adjusted by a small margin with vertical two direction in level using horizontally moving device and vertical shift device, Until the light sensor for receiving white light originally receives white light again;
(2.7)Then repeat step(2.6.1)And step(2.6.2)Until there is two light sensors to receive white light;
(3)After having two light sensors to receive white light, in the case where length-width ratio is constant, rectangular position is complete It is determined that, i.e., lens location has been adjusted, and now adjusting hot spot on lens focus, projecting apparatus can mutually strain big or diminish, according to Light sensor receives illumination intensity and can determine whether focal length situation;Reached most when light sensor receives intensity of illumination When big, illustrate that Focussing is completed, projecting apparatus completes the work that is automatically positioned and focuses.
CN201610211049.0A 2016-04-06 2016-04-06 It is automatically positioned projecting apparatus and automatic positioning method CN105700276B (en)

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Application Number Priority Date Filing Date Title
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CN105700276B true CN105700276B (en) 2017-11-07

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Publication number Priority date Publication date Assignee Title
CN107087148A (en) * 2017-06-30 2017-08-22 合肥久能图文科技有限公司 A kind of projector monitors self-adjusting system
CN108282944B (en) * 2018-01-22 2019-06-25 京东方科技集团股份有限公司 Indoor light adjustment equipment, regulating system and method based on projector state

Family Cites Families (7)

* Cited by examiner, † Cited by third party
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KR0132983B1 (en) * 1994-10-26 1998-04-16 배순훈 Apparatus for regulating projection angles for projector
JP3690402B2 (en) * 2003-03-28 2005-08-31 セイコーエプソン株式会社 Image processing system, projector, program, information storage medium, and image processing method
WO2007098764A1 (en) * 2006-03-01 2007-09-07 Martin Professional A/S Lighting fixture having a mechanism for pivoting an additional optical component into the light beam
CN202522837U (en) * 2012-03-30 2012-11-07 日立数字映像(中国)有限公司 Automatic focusing and automatic keystone correction device of projector
US9316890B2 (en) * 2012-08-01 2016-04-19 Ricoh Company, Ltd. Projector positioning
CN104834150A (en) * 2014-02-11 2015-08-12 索尼公司 Lens adjusting device and projection device provided therewith
CN104360567A (en) * 2014-10-11 2015-02-18 苏州合欣美电子科技有限公司 Projection brightness adjustment method of adaptive projection system

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