CN103279080B - Intelligent cinema environment adjustment device - Google Patents
Intelligent cinema environment adjustment device Download PDFInfo
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- CN103279080B CN103279080B CN201310156001.0A CN201310156001A CN103279080B CN 103279080 B CN103279080 B CN 103279080B CN 201310156001 A CN201310156001 A CN 201310156001A CN 103279080 B CN103279080 B CN 103279080B
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Abstract
The invention relates to an intelligent cinema environment adjustment device. The intelligent cinema environment adjustment device comprises a weight detection module, a plurality of exhaust fans, a plurality of air conditioning devices, a plurality of audio playback speaker devices, a movie projector projecting region adjustment device, a plurality of brackets, a controller device and a display, wherein the controller device is connected with the weight detection module, the exhaust fans, the air conditioning devices, the audio playback speaker devices, the movie projector projecting region adjustment device, the brackets and the display respectively. According to the intelligent cinema environment adjustment device, the number of audiences in a certain region of a lifting grandstand of a cinema can be determined according to judgment results on whether an audience exists on each seat or not, and then, whether services, such as exhausting, air conditioning, audio playback and additional supporting, are required to be provided for the audiences in the certain region or not is decided, so that the playback cost of the cinema is reduced on one hand, the noise interference to the audiences watching movies caused by the operation of equipment is reduced on the other hand, and thus, the comfort during watching is increased.
Description
Technical field
The present invention relates to a kind of intelligent cinema environment adjustment device, particularly relate to a kind of intelligent cinema environment adjustment device of Intelligent adjustment movie theatre internal environment of the up-down movable grandstand around movie theatre, when spectators watch film, can according to the situation respectively of the spectators on up-down movable grandstand, intelligent opening or close corresponding exhaust, air-conditioning, audio frequency play and support frame device, automatically the projection centre of projector can also be adjusted, save movie theatre operation cost, ensure the self-adaptative adjustment of theatre environment, also improve the security of the up-down movable grandstand of movie theatre.
Background technology
Movie theatre is the place for spectators show a film.Film, at the generation initial stage, in the projection of the place such as coffee shop, teahouse, along with the progress and development of film, occurs specially for showing a film and the movie theatre built.The development of film, from noiseless to sound and even stereo, from black-and-white film to colored film, from common screen to wide-screen and even vault curtain, ring curtain, makes the body of movie theatre, size, ratio and acoustic technique all there occurs great changes.The development of movie theatre progressively meets the technological requirement of motion picture projection, for broad masses of the people provide good visual and auditory effect.
But, theatre environment design of the prior art has following defect: the spectators' distribution situation can not watching film according to reality, each service equipment in dynamic conditioning movie theatre, but generally allow armamentarium open simultaneously, like this, when only having a small amount of spectators to come to watch, both consuming a large amount of operation costs, having brought unnecessary electric equipment running noises to spectators again; And the projection center of projector is fixing, can not adjust according to the actual situation respectively of spectators; Meanwhile, have employed up-down movable grandstand in most movie theatre to ensure the diversity that space uses, like this, necessary extra support is not provided as a certain region overconcentration of power in the managerial system spectators of up-down movable grandstand, easily causes the major accident that grandstand subsides.
Therefore, need a kind of intelligence degree high, theatre environment can be adjusted flexibly, the intelligent cinema environment adjustment device of the extensible movable stand safe handling of movie theatre can be ensured again, with the real-time distribution situation according to spectators, the startup of all kinds of service equipment of dynamic conditioning and closedown, the projection center of dynamic conditioning projector, to save movie theatre expense, for spectators provide warm service.
Summary of the invention
In order to solve the problem, the invention provides a kind of up-down movable grandstand around movie theatre intelligent cinema environment adjustment device, make the supervision that movie theatre operator need not ensure bleacherite's number and distribution situation in the moment, just can open or close unnecessary service equipment in time, the expansion of the extra support frame of self-adaptative adjustment movie theatre up-down movable grandstand and projector projection center, meet the viewing demand of spectators, ensure the safe handling of movie theatre up-down movable grandstand.
According to an aspect of the present invention, provide a kind of intelligent cinema environment adjustment device of the up-down movable grandstand around movie theatre, comprise weight detecting module, multiple vent fan, multiple aircondition, multiple audio frequency plays speaker unit, film projector screening area regulating device, multiple bracing frame, control device and display, control device connects weight detecting module respectively, multiple vent fan, multiple aircondition, multiple audio frequency plays speaker unit, film projector screening area regulating device, multiple bracing frame and display, with on each seat judging the up-down movable grandstand of movie theatre according to the output of weight detecting module with or without spectators, and determine multiple vent fan according to judged result, multiple aircondition, multiple audio frequency plays speaker unit, the operation of film projector screening area regulating device and multiple bracing frame, relevant information display will be operated over the display.
More specifically, described intelligent cinema environment adjustment device comprises further: weight detecting module, under being arranged on each seat of the up-down movable grandstand of movie theatre, for detecting the weight of seat carrying, when the weight of seat carrying is more than or equal to setting weight threshold value, send and there is spectators' control signal, when the weight of seat carrying is less than setting weight threshold value, send without spectators' control signal, wherein said setting weight threshold value is judge seat has the weight of people, the described spectators' of existence control signal or without the positional information also comprising seat place in spectators' control signal, multiple vent fan, is distributed on the wall of the multiple areas adjacent of up-down movable grandstand of movie theatre, and each vent fan drives fan blade rotary actuation air-flow by motor, and indoor-outdoor air is exchanged, to remove indoor vitiated air, multiple aircondition, is distributed on the wall of the multiple areas adjacent of up-down movable grandstand of movie theatre, regulates the temperature of air in this movie theatre, to meet human comfort's demand, multiple audio frequency plays speaker unit, is distributed in the multiple region of up-down movable grandstand of movie theatre, plays the audio-frequency information that movie theatre reflection film is corresponding, film projector screening area regulating device, connects film projector and regulates film projector to project to the center in the region on screen, to meet spectators' visual demand, multiple bracing frame, between the pedestal and supporting traverse of the up-down movable grandstand of movie theatre, is arranged in multiple regions of the up-down movable grandstand of movie theatre, and each bracing frame is used for the extra up-down movable grandstand for corresponding region and provides support, control device, under being arranged on the pedestal of up-down movable grandstand of movie theatre, connect the weight detecting module under each seat, multiple vent fan, multiple aircondition, multiple audio frequency plays speaker unit and film projector screening area regulating device, receive spectators' control signal that weight detecting module under each seat exports or without spectators' control signal, from described spectators' control signal or without the positional information parsed spectators' control signal with or without spectators and seat on corresponding seat, to judge the spectator attendance in up-down movable grandstand regional, when the spectator attendance in certain region of up-down movable grandstand is more than or equal to predetermined threshold, open the vent fan that described certain region of up-down movable grandstand is corresponding, aircondition and audio frequency play speaker unit, to provide service to the spectators being arranged in described certain region of up-down movable grandstand, and the bracing frame that described in starting, certain region is corresponding provides support with the up-down movable grandstand additionally for certain region described, when the spectator attendance in certain region of up-down movable grandstand is less than predetermined threshold, close the vent fan that described certain region of up-down movable grandstand is corresponding, aircondition and audio frequency play speaker unit, and close bracing frame corresponding to certain region described, in addition, spectators' control signal that control device also exports according to the weight detecting module under each seat or project to the center in the region on screen without the film projector that spectators' control signal determination film projector screening area regulating device regulates, display, be arranged in movie theatre pulpit, connect described controller to receive the positional information with or without spectators and seat on each seat, receive the startup/closed condition information of multiple vent fan, multiple aircondition, multiple audio frequency broadcasting speaker unit and multiple bracing frame, and receive the center location information that film projector that film projector screening area regulating device regulates projects to the region on screen, and by each information dynamic similation display of receiving on a display screen, wherein, described up-down movable grandstand comprises pedestal, supporting traverse, bedstead and seat, supporting traverse is incline structure and has multiple cam, supporting traverse is positioned on pedestal, bedstead is sandwich construction and splits on supporting traverse with having drop, every layer of bedstead is fixed with multiple seat, and every layer of bedstead is contacted with the cam of correspondence position on supporting traverse by roller, wherein, seat adopts motorized motions mode, drive during operation and have hand-control device, have telechiric device again, seat bottom structure adopts mechanical support system to ensure quiet, dynamic load requirement, and the feet of seat adopts mechanical type synchronous feedback plant, ensure seat synchronization telescope, avoid the directed sideslip of sliding seat, seat is replied by seat deadweight simultaneously, and when packing up, angle is less than 20 degree, wherein, display screen is LCD liquid crystal display screen curtain, can be any one in static drive (Static) LCDs, simple matrix driving (Simple Matrix) LCDs and active matrix drive (Active Matrix) LCDs.
More specifically, described intelligent cinema environment adjustment device comprises further: described weight detecting module obtains by the quality measuring spectators on seat the weight that pressure detects vehicle seat carrying.
More specifically, described intelligent cinema environment adjustment device comprises further: every layer of bedstead is contacted with the cam of correspondence position on supporting traverse by roller, by changing the curve shape of cam, can change relative height required between every layer of bedstead.
More specifically, described intelligent cinema environment adjustment device comprises further: described active matrix drive (Active Matrix) LCDs can be thin-film transistors type (Thin Film Transistor; And two-terminal diode-type (Metal/Insulator/Metal TFT); MIM) any one in.
Accompanying drawing explanation
Below with reference to accompanying drawing, embodiment of the present invention are described, wherein:
The block diagram of the intelligent cinema environment adjustment device that Fig. 1 illustrates according to an embodiment of the present invention.
Embodiment
Below with reference to accompanying drawings the embodiment of intelligent cinema environment adjustment device of the present invention is described in detail.
Fig. 1 illustrates the block diagram of the intelligent cinema environment adjustment device illustrated according to an embodiment of the present invention.Intelligent cinema environment adjustment device wherein around the up-down movable grandstand of movie theatre comprises: weight detecting module, multiple vent fan, multiple aircondition, multiple audio frequency plays speaker unit, film projector screening area regulating device, multiple bracing frame, control device and display, control device connects weight detecting module respectively, multiple vent fan, multiple aircondition, multiple audio frequency plays speaker unit, film projector screening area regulating device, multiple bracing frame and display, with on each seat judging the up-down movable grandstand of movie theatre according to the output of weight detecting module with or without spectators, and determine multiple vent fan according to judged result, multiple aircondition, multiple audio frequency plays speaker unit, the operation of film projector screening area regulating device and multiple bracing frame, relevant information display will be operated over the display.Wherein, weight detecting module, under being arranged on each seat of the up-down movable grandstand of movie theatre, for detecting the weight of seat carrying, when the weight of seat carrying is more than or equal to setting weight threshold value, send and there is spectators' control signal, when the weight of seat carrying is less than setting weight threshold value, send without spectators' control signal, wherein said setting weight threshold value is judge seat has the weight of people, the described spectators' of existence control signal or without the positional information also comprising seat place in spectators' control signal, multiple vent fan, is distributed on the wall of the multiple areas adjacent of up-down movable grandstand of movie theatre, and each vent fan drives fan blade rotary actuation air-flow by motor, and indoor-outdoor air is exchanged, to remove indoor vitiated air, multiple aircondition, is distributed on the wall of the multiple areas adjacent of up-down movable grandstand of movie theatre, regulates the temperature of air in this movie theatre, to meet human comfort's demand, multiple audio frequency plays speaker unit, is distributed in the multiple region of up-down movable grandstand of movie theatre, plays the audio-frequency information that movie theatre reflection film is corresponding, film projector screening area regulating device, connects film projector and regulates film projector to project to the center in the region on screen, to meet spectators' visual demand, multiple bracing frame, between the pedestal and supporting traverse of the up-down movable grandstand of movie theatre, is arranged in multiple regions of the up-down movable grandstand of movie theatre, and each bracing frame is used for the extra up-down movable grandstand for corresponding region and provides support, control device, under being arranged on the pedestal of up-down movable grandstand of movie theatre, connect the weight detecting module under each seat, multiple vent fan, multiple aircondition, multiple audio frequency plays speaker unit and film projector screening area regulating device, receive spectators' control signal that weight detecting module under each seat exports or without spectators' control signal, from described spectators' control signal or without the positional information parsed spectators' control signal with or without spectators and seat on corresponding seat, to judge the spectator attendance in up-down movable grandstand regional, when the spectator attendance in certain region of up-down movable grandstand is more than or equal to predetermined threshold, open the vent fan that described certain region of up-down movable grandstand is corresponding, aircondition and audio frequency play speaker unit, to provide service to the spectators being arranged in described certain region of up-down movable grandstand, and the bracing frame that described in starting, certain region is corresponding provides support with the up-down movable grandstand additionally for certain region described, when the spectator attendance in certain region of up-down movable grandstand is less than predetermined threshold, close the vent fan that described certain region of up-down movable grandstand is corresponding, aircondition and audio frequency play speaker unit, and close bracing frame corresponding to certain region described, in addition, spectators' control signal that control device also exports according to the weight detecting module under each seat or project to the center in the region on screen without the film projector that spectators' control signal determination film projector screening area regulating device regulates, display, be arranged in movie theatre pulpit, connect described controller to receive the positional information with or without spectators and seat on each seat, receive the startup/closed condition information of multiple vent fan, multiple aircondition, multiple audio frequency broadcasting speaker unit and multiple bracing frame, and receive the center location information that film projector that film projector screening area regulating device regulates projects to the region on screen, and by each information dynamic similation display of receiving on a display screen, wherein, described up-down movable grandstand comprises pedestal, supporting traverse, bedstead and seat, supporting traverse is incline structure and has multiple cam, supporting traverse is positioned on pedestal, bedstead is sandwich construction and splits on supporting traverse with having drop, every layer of bedstead is fixed with multiple seat, and every layer of bedstead is contacted with the cam of correspondence position on supporting traverse by roller, wherein, seat adopts motorized motions mode, drive during operation and have hand-control device, have telechiric device again, seat bottom structure adopts mechanical support system to ensure quiet, dynamic load requirement, and the feet of seat adopts mechanical type synchronous feedback plant, ensure seat synchronization telescope, avoid the directed sideslip of sliding seat, seat is replied by seat deadweight simultaneously, and when packing up, angle is less than 20 degree, wherein, display screen is LCD liquid crystal display screen curtain, can be any one in static drive (Static) LCDs, simple matrix driving (Simple Matrix) LCDs and active matrix drive (Active Matrix) LCDs.
Wherein, up-down movable grandstand, adopt multiple different array pitch and rank high come the requirement of meeting spatial and sight line, its stretch mode is divided into manual, semi-automatic and electronic three kinds of operations, because its dirigibility makes it have multiple different collecting method, wall type, stand alone type, movable type, wall receive formula and reversible.Can be widely used in various large-scale stadium, school and the multifunctional conference Room, exhibition center, cinema, music hall etc., up-down movable grandstand allows and uses the place of movable stand to be functionally able to maximum performance, to meet the diversified demand of various venue.
Wherein, film projector comprises film movie projector and d-cinema projectors, and film projector is just progressively eliminated by digital projector, film projector advantage is that color is good, image stabilization, and digital projector advantage is non-jitter, not easily occur projection accident, projection cost is low.Film movie projector, from use copy, can be divided into 8 millimeters of projectors (eliminating), 16 millimeters of projectors (eliminating), 35 millimeters of projectors and 70 millimeters of projectors (IMAX); Bag machine (flow mechanism), fixing machine can be divided into and sit machine purposes.D-cinema projectors is divided into 4K from high in the end, 2k, 1.3k, 0.8k, be specifically distinguished as, 4K(teaching machine resolution is 4096 × 2016,8250000 pixels) be most significant end, big city is all few, and the film that 4K can be synchronous, 2K has, and the screen that the equipment of 4K is only wide more than 20 meters just can find out the weak effect distance with 2K; 2K(teaching machine resolution is 2048 × 1080,2,210,000 pixels) be international standard machine; 1.3K(teaching machine resolution is 1280 × 1024,1,310,000 pixels) be national standard machine; 0.8K(teaching machine resolution is 1024 × 768,78.6 ten thousand pixels) be rural area projector.
In addition, described intelligent cinema environment adjustment device comprises further: described weight detecting module obtains by the quality measuring spectators on seat the weight that pressure detects vehicle seat carrying.Particularly, weight detecting module is enabled/is removed indicating device by the electronic control module be arranged on bottom seat cushion and sensor unit, wire harness and airbag and forms.
In addition, described intelligent cinema environment adjustment device comprises further: every layer of bedstead is contacted with the cam of correspondence position on supporting traverse by roller, by changing the curve shape of cam, can change relative height required between every layer of bedstead.
In addition, described intelligent cinema environment adjustment device comprises further: described active matrix drive (Active Matrix) LCDs can be thin-film transistors type (Thin Film Transistor; And two-terminal diode-type (Metal/Insulator/Metal TFT); MIM) any one in.The manufacturer of intelligent cinema environment adjustment device can select the one of above-mentioned LCDs to add in described intelligent cinema environment adjustment device according to the cost requirement of movie theatre operator.
Wherein, LCDs, English is commonly referred to as LCD(Liquid Crystal Display), be the one belonging to flat-panel screens, for the screen display of televisor and computing machine.LCD display employs two panels polarization material, is liquid crystal solution between which.Electric current rearranges by making crystal during this liquid, to make light cannot through them.Therefore, each crystal, just as window shutter, can allow light to pass and can obstruct the light.Scientific and technical information product is all towards the development of light, thin, short, little target at present for liquid crystal display (LCD), and the display product having long history in computing machine periphery is certainly no exception.Be easy to carry and carrying as under front topic, traditional display mode, as CRT crt display and LED display board etc., is all limited by the factors such as the excessive or power consumption of volume is very huge, cannot reaches the actual demand of user.And the development of lcd technology just in time suits the trend of current information products, be no matter the advantages such as little or zero radiation of right angle display, low power consumption, volume, user can be allowed to enjoy best visual environment.
Adopt intelligent cinema environment adjustment device of the present invention, substantially increase the intelligence degree of traditional cinema ambient intelligence regulating device, meet the theatre environment self-adaptative adjustment to different spectators' distribution situation, by checking that the spectators on each seat exist situation, judge whether to open many services equipment startup activity and begin a theatrical performance safety supports service, on the one hand, decrease the unnecessary expense of movie theatre operator, on the other hand, decrease too much equipment and run noise, for the spectators watching film provide the most warm special project service.
Be understandable that, although the present invention with preferred embodiment disclose as above, but above-described embodiment and be not used to limit the present invention.For any those of ordinary skill in the art, do not departing under technical solution of the present invention ambit, the technology contents of above-mentioned announcement all can be utilized to make many possible variations and modification to technical solution of the present invention, or be revised as the Equivalent embodiments of equivalent variations.Therefore, every content not departing from technical solution of the present invention, according to technical spirit of the present invention to any simple modification made for any of the above embodiments, equivalent variations and modification, all still belongs in the scope of technical solution of the present invention protection.
Claims (5)
1. an intelligent cinema environment adjustment device, described device comprises:
Weight detecting module, multiple vent fan, multiple aircondition, multiple audio frequency plays speaker unit, film projector screening area regulating device, multiple bracing frame, control device and display, control device connects weight detecting module respectively, multiple vent fan, multiple aircondition, multiple audio frequency plays speaker unit, film projector screening area regulating device, multiple bracing frame and display, with on each seat judging the up-down movable grandstand of movie theatre according to the output of weight detecting module with or without spectators, and determine multiple vent fan according to judged result, multiple aircondition, multiple audio frequency plays speaker unit, the operation of film projector screening area regulating device and multiple bracing frame, relevant information display will be operated over the display.
2. intelligent cinema environment adjustment device as claimed in claim 1, comprises further:
Weight detecting module, under being arranged on each seat of the up-down movable grandstand of movie theatre, for detecting the weight of seat carrying, when the weight of seat carrying is more than or equal to setting weight threshold value, send and there is spectators' control signal, when the weight of seat carrying is less than setting weight threshold value, send without spectators' control signal, wherein said setting weight threshold value is judge seat has the weight of people, the described spectators' of existence control signal or without the positional information also comprising seat place in spectators' control signal;
Multiple vent fan, is distributed on the wall of the multiple areas adjacent of up-down movable grandstand of movie theatre, and each vent fan drives fan blade rotary actuation air-flow by motor, and indoor-outdoor air is exchanged, to remove indoor vitiated air;
Multiple aircondition, is distributed on the wall of the multiple areas adjacent of up-down movable grandstand of movie theatre, regulates the temperature of air in this movie theatre, to meet human comfort's demand;
Multiple audio frequency plays speaker unit, is distributed in the multiple region of up-down movable grandstand of movie theatre, plays the audio-frequency information that movie theatre reflection film is corresponding;
Film projector screening area regulating device, connects film projector and regulates film projector to project to the center in the region on screen, to meet spectators' visual demand;
Multiple bracing frame, between the pedestal and supporting traverse of the up-down movable grandstand of movie theatre, is arranged in multiple regions of the up-down movable grandstand of movie theatre, and each bracing frame is used for the extra up-down movable grandstand for corresponding region and provides support;
Control device, under being arranged on the pedestal of up-down movable grandstand of movie theatre, connect the weight detecting module under each seat, multiple vent fan, multiple aircondition, multiple audio frequency plays speaker unit and film projector screening area regulating device, receive spectators' control signal that weight detecting module under each seat exports or without spectators' control signal, from described spectators' control signal or without the positional information parsed spectators' control signal with or without spectators and seat on corresponding seat, to judge the spectator attendance in up-down movable grandstand regional, when the spectator attendance in certain region of up-down movable grandstand is more than or equal to predetermined threshold, open the vent fan that described certain region of up-down movable grandstand is corresponding, aircondition and audio frequency play speaker unit, to provide service to the spectators being arranged in described certain region of up-down movable grandstand, and the bracing frame that described in starting, certain region is corresponding provides support with the up-down movable grandstand additionally for certain region described, when the spectator attendance in certain region of up-down movable grandstand is less than predetermined threshold, close the vent fan that described certain region of up-down movable grandstand is corresponding, aircondition and audio frequency play speaker unit, and close bracing frame corresponding to certain region described, in addition, spectators' control signal that control device also exports according to the weight detecting module under each seat or project to the center in the region on screen without the film projector that spectators' control signal determination film projector screening area regulating device regulates,
Display, be arranged in movie theatre pulpit, connect described controller to receive the positional information with or without spectators and seat on each seat, receive the startup/closed condition information of multiple vent fan, multiple aircondition, multiple audio frequency broadcasting speaker unit and multiple bracing frame, and receive the center location information that film projector that film projector screening area regulating device regulates projects to the region on screen, and by each information dynamic similation display of receiving on a display screen;
Wherein, described up-down movable grandstand comprises pedestal, supporting traverse, bedstead and seat, supporting traverse is incline structure and has multiple cam, supporting traverse is positioned on pedestal, bedstead is sandwich construction and splits on supporting traverse with having drop, every layer of bedstead is fixed with multiple seat, and every layer of bedstead is contacted with the cam of correspondence position on supporting traverse by roller;
Wherein, seat adopts motorized motions mode, drive during operation and have hand-control device, have telechiric device again, seat bottom structure adopts mechanical support system to ensure quiet, dynamic load requirement, and the feet of seat adopts mechanical type synchronous feedback plant, ensure seat synchronization telescope, avoid the directed sideslip of sliding seat, seat is replied by seat deadweight simultaneously, and when packing up, angle is less than 20 degree;
Wherein, display screen is LCD liquid crystal display screen curtain, can be any one in static drive (Static) LCDs, simple matrix driving (Simple Matrix) LCDs and active matrix drive (ActiveMatrix) LCDs.
3. intelligent cinema environment adjustment device as claimed in claim 2, comprises further: described weight detecting module obtains by the quality measuring spectators on seat the weight that pressure detects vehicle seat carrying.
4. the intelligent cinema environment adjustment device as described in as arbitrary in claim 2-3, comprise further: every layer of bedstead is contacted with the cam of correspondence position on supporting traverse by roller, by changing the curve shape of cam, relative height required between every layer of bedstead can be changed.
5. intelligent cinema environment adjustment device as claimed in claim 4, comprises: described active matrix drive (Active Matrix) LCDs can be thin-film transistors type (Thin FilmTransistor further; And two-terminal diode-type (Metal/Insulator/Metal TFT); MIM) any one in.
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| CN103217965A (en) * | 2013-05-03 | 2013-07-24 | 浙江大丰实业有限公司 | Intelligent cinema environment adjustment method |
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| CN210488303U (en) * | 2016-11-10 | 2020-05-08 | 炼马机电（东莞）有限公司 | Cinema seat control system |
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| CN108156184A (en) * | 2018-03-16 | 2018-06-12 | 中影数字巨幕（北京）有限公司 | A kind of audio-visual control method for playing back and system |
| CN108769867B (en) * | 2018-06-04 | 2020-02-14 | 镇江视程影视有限公司 | Audio control device and system for cinema |
| CN108895592A (en) * | 2018-06-04 | 2018-11-27 | 镇江视程影视有限公司 | Movie theatre ventilation controller and system |
| CN108954693B (en) * | 2018-08-06 | 2024-02-09 | 珠海格力电器股份有限公司 | Central air conditioner with sound amplifying function and working method thereof |
| CN109412825A (en) * | 2018-12-07 | 2019-03-01 | 合肥诺必达信息技术有限责任公司 | A kind of intelligent meeting management system based on participant |
| CN113157081A (en) * | 2020-01-07 | 2021-07-23 | 种红侠 | Display screen driving system and method based on angle detection |
| CN114572784B (en) * | 2022-01-27 | 2024-04-05 | 北京声智科技有限公司 | Method and device for detecting number of passengers in elevator, electronic equipment and storage medium |
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Address after: 315400 Ningbo Province, Yuyao City, new North Road, No. 737, No. Applicant after: ZHEJIANG DAFENG INDUSTRY COMPANY LTD. Address before: 315400 Ningbo Province, Yuyao City, new North Road, No. 737, No. Applicant before: Zhejiang Dafeng Industrial Co., Ltd. |
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