CN105047108A - Projection imaging device for subway glass shielded gate - Google Patents
Projection imaging device for subway glass shielded gate Download PDFInfo
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- CN105047108A CN105047108A CN201510535589.XA CN201510535589A CN105047108A CN 105047108 A CN105047108 A CN 105047108A CN 201510535589 A CN201510535589 A CN 201510535589A CN 105047108 A CN105047108 A CN 105047108A
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B31/00—Arrangements for the associated working of recording or reproducing apparatus with related apparatus
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Abstract
The invention relates to an information and advertisement projection imaging device for a subway glass shielded gate. The projection imaging device comprises a central control system, a signal sensing system, a signal transmission system, a display system, a sound system, an interaction system and a safety protection system, wherein the central control system is connected with the other six systems and provided with multiple types of safety protection interfaces. A platform area is additionally provided with a crowd density detector and an image brightness induction device. When the crowd density reaches the alarm value, a density inductor triggers the central control system, and the image of the shielded gate is switched to an evacuation tip or becomes transparent. By means of the projection imaging device, safe operation of a display system of the shielded gate can be fully guaranteed, in combination with the novelty and visual effect of the display information of the shielded gate, the information transmission rate can be increased, and economic benefits are increased.
Description
Technical field
The invention belongs to tube advertising equipment technical field, be specifically related to a kind of information on subway glass shield door and advertisement projection imaging device.
Background technology
Subway superelevation ageing is the vehicles of current people city trip prioritizing selection, and subway is because its lower network bulkily had and flow of the people are also described as the second stealthy city.Compare other mode of transportation, Metro Space relative closure, not by extraneous various environmental interference, the notice Relatively centralized of the passenger that waits, in conjunction with the waiting time of rule, information attention rate can significantly rise.
Subway existing information is issued and is divided into 2 large classes, and a class is static information, main use lamp box and paster.Another kind of is multidate information, utilizes the LCD in subway carriage, in platform, subway concourse and passage or LED screen to issue.The conventional electronic device that multidate information uses is subject to the restriction of physical characteristics and the restriction of safety of subway operation, can not be placed on passenger's residence time is the longest, concern power is strong platform glass shield door (partition).Therefore, projecting glass (film) display technique of varying degrees of transparency is current optimal display technique.
Summary of the invention
The object of the invention is to overcome the deficiency of above-mentioned traditional display technologies in shield door application, in conjunction with subway to the strict needs of safe operation, ensureing under secured premise, to realize the information displaying on glass shield door and interaction.
In order to realize foregoing invention object, the technical solution used in the present invention is as follows:
A projection imaging device on subway glass shield door, comprises central control system, signal sensory perceptual system, the information transmission system, display system, audio system and security protection system; Central control system is connected with signal sensory perceptual system, the information transmission system, display system, audio system and security protection system respectively; Described security protection system comprises platform crowd density inductor, screen intensity inductor, projector poses sensor and the urgent switch controller of physics;
Testing result for detecting platform crowd density, and is fed back to central control system by the information transmission system by described platform crowd density inductor;
Testing result for providing the brightness calibration information of display system, and is fed back to central control system by the information transmission system by described screen illumination sensors;
Described attitude sensor is used for providing projector poses adjustment information, and adjustment information is fed back to central control system by the information transmission system;
Described physics emergency governor is also connected with the power supply of described display system, opening and closedown for manual control display system.
Further, described projection imaging device also comprises interaction systems, and it is connected with central control system by the information transmission system, and described interaction systems comprises multi-point touch panel, and described multi-point touch panel adopts attachment process to be arranged in the display system of platform side.
Further, described signal sensory perceptual system comprises: train trigger sensor, metro operation signal transmission device.Wherein:
Described train trigger sensor is installed in tunnel, platform both sides, for the open and close of described display system provide triggering command; Described train trigger sensor is selected from infrared, laser, electromagnetism, audio frequency, pressure, displacement or air velocity transducer;
Described metro operation signal transmission device is for transmitting by unified train in/out station PIS information, system time service information and the urgent forewarn information provided of metro operation control center.
Further, described central control system comprises: embedded Control main frame, control protocol and control interface;
Described embedded Control main frame adopts the processing platform of technical grade and supporting operating system;
Described control protocol comprises: the agreements such as TCP_IP/RS232/422/485/MODBUS/CAN;
Described control interface comprises: the interfaces such as RJ45/IR/IO/Relay.
Further, the described information transmission system comprises control information forwarder and image information forwarder, and the transmission mode of employing comprises twisted-pair feeder, optical fiber, RF cable, WIFI and less radio-frequency mode of movement.
Further, described display system comprises projector and screen display device, and described projector is high definition projector, and sharpness is not less than 2K, is arranged in platform Gui Hang district; Described screen display device is double glazing sandwich construction, middle layer is light modulation film, or adopt the mode of Electrostatic Absorption to be fitted in by light modulation film on existing shield door glass, light modulation film is connected with power supply, realizes mist state and the clear state of light modulation film by opening and closing power supply.
Further, described audio system comprises: power amplifier and interface attaching type phonation unit; Described power amplifier uses level pressure and fixed-resistance output form; Described phonation unit uses attachment process, adheres on the shield door glass of Hang Qu side in-orbit.
For realizing object of the present invention, present invention also offers a kind of method utilizing above-mentioned projection imaging device to carry out projection imaging, being specially:
When signal sensory perceptual system column free pulled in signal feedback to central control system time, and platform crowd density inductor will have the information feed back of the passenger that waits to after central control system, central control system starts display system, audio system and/or interaction systems and runs, now screen display device switches on power, light modulation film is mist state, and projector projects image onto on the screen display device of mist state;
When train home signal is fed back to central control system by signal sensory perceptual system or after the safety value upper limit of platform crowd density inductor result of detection higher than setting, central control system will stop display system, audio system and/or interaction systems to run, now the power supply of screen display device disconnects, the transparent state of light modulation film, projector quits work, and the glass on subway shield door restores to the original state.
Further, during display system work, screen illumination sensors by the information transmission system by environment light sensation data feedback to central control system, and automatically regulate display frame brightness by central control system, improve picture comfort.
Projector is arranged in platform Gui Hang district by projection imaging device provided by the invention, by image projection on dimming glass (film).During without train, shield door display information, passenger uses touch form and shield door content interaction; When train is about to enter the station, shield door display train is about to information of arriving at a station, and now interaction function is closed, and shield door recovers transparent immediately, and after train sails out of, shield door recovers display and interactive state.
Energy-conservation in order to realize, when without train, whether detection has passenger to wait nearby by density tester, can control the switch of corresponding shield door display system voluntarily.When Density Detection value is higher than safety value, immediately by data feedback to central control system, central control system will stop Projection Display work, recover the pellucidity of shield door, guarantee that crowd does not assemble before display screen, improve safety assurance.Picture brightness induction installation will regulate shield door picture brightness automatically, to avoid interference subway staff sight line or to affect the visual effect of passenger.Consider the Hoisting Security in Gui Hang district, attitude sensor will add in lifting projector, when projector is subject to very big blast or vibrations are subjected to displacement change, and central control system alarm staff.
Projection imaging device provided by the invention, platform glass partition can be made full use of under safing prerequisite, the glass partition of subway platform can be allowed to present the image of high definition image quality, glass partition is made to become large-scale visual advertising carrier, play dynamic image to attract to wait the notice of passenger, thus realize good advertising results, create economic interests.When subway is about to enter the station, can for passenger plays the information that subway is about to enter the station on glass partition, glass partition can be allowed to recover transparent when subway enters the station, ensure that subway staff and passenger have good visual field, ensure subway circulation safety, closely agree with the needs of metro safety operation.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention;
Fig. 2 is the structured flowchart of the embodiment of the present invention;
Fig. 3 is the structural representation of light modulation projection film and light modulation projecting glass;
Fig. 4 is the principle schematic that the transparent and opaque state of light modulation projection film and light modulation projecting glass switches;
In figure, 1-screen display device, 2-multi-point touch panel, 3-projector, 4-image information forwarder, 5-attitude sensor, 6-screen illumination sensors, 7-platform crowd density detecting device, 8-light modulation film power supply, 9-control information forwarder.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
As depicted in figs. 1 and 2, a kind of information on subway glass shield door and advertisement projection imaging device, it is the light modulation optical projection system functionally constructed based on electrically-controlled liquid crystal light modulation film or electrically-controlled liquid crystal light modulation glass, wherein interaction systems adopts multi-point touch panel 2, control information forwarder 9 is connected with light modulation film power supply 8, controls the transparency conversion of light modulation film; Described projector 3 and image information forwarder 4 are installed in-orbit above row district madial wall in the lump, are rendered to by image on screen display device 1.Described control information forwarder 9 is connected with described multi-point touch panel 2, and interactive data is sent to central control system by control information forwarder 9 by described multi-point touch panel 2.Described screen illumination sensors 6 is connected with control information transmitter 9 with platform crowd density detecting device 7, detection data is sent in central control system.Described attitude sensor 5 is connected with image information transmitter 4, data is sent in central control system.
Projection pattern of the present invention is rear-projection mode, projector 3 is arranged on the top of subway tunnel madial wall, image is rendered on described screen display device 1, projection imaging is on glass partition, view and admire for platform passenger, its operation principles is, by the projection of server controls light modulation projection film whether transparent (ON state/OFF state) and projector whether (ON state/OFF state) collocation, realizes following functions:
1) when receiving subway PIS home signal or the sensor group entered the station in end tunnel triggers close to perception, show that train is about to enter the station, the light modulation film that central control system controls screen display device 1 opens pellucidity (energising), display system closedown, interactive touch function is closed, and shield door restores to the original state;
2) when receiving the sensor group in subway PIS signal leaving from station or departures end tunnel and triggering, show that train sets off, the light modulation film of central control system control screen display device 1 opens mist state (power-off), display system is resumed operation, interactive touch function is opened, and shield door cuts off and presents projected image;
3) the watchful passenger of continuous flicker of dimming glass (film) can be passed through, image information signal passengers train also can be used to be about to enter the station, safe and orderly by bus.
Information server in display system adopts the built-in player of networking, inserts USB flash disk or SD card reading data, also push resource by network shared resource server is unified, configure broadcast strategy by special software by this locality.This information service player has two sets of plan alternative:
A. hubbed mode, built-in player is placed in machine room, play content will utilize optical fiber information to be delivered to the place of projector in Gui Hang district message recipient by information generator, and 6 ~ 8 is one group, plays unified information source.
B. dispersion pattern, the projector in built-in player and Gui Hang district puts together, and pushes video data, can play various information source separately by network remote.
Signal sensory perceptual system adopts multiple sensors cascade structure, such as into and out of exit installation infrared, sound wave and magnetometric sensor group, use sound, light and electromagnetic technique comprehensive descision train in/out station, combine and can significantly reduce erroneous judgement probability, and under ensureing monomer damage situation, system can reliability service.Separately change above-mentioned triggering mode into backup according to subway side's demand to trigger, the PIS scheduling signals provided based on subway side, sensor group is auxiliary, and when guaranteeing that PIS scheduling signals lost efficacy, system is work as usual still.
In addition, central control system is also connected with the physics emergency governor in security protection system, physics emergency governor is used for when central control system causes can not realizing automatically controlling due to some part fails or other reasons, Non-follow control is used to connect screen power supplies, thus make light modulation projection screen become transparent, enable the people on subway see outside situation clearly, avoid causing danger.
Screen display device 1 adopts light modulation projection film or light modulation projecting glass as projection screen, and the break-make only needing control system 1 to control power supply just can realize whether transparent switching on light modulation film, wherein:
1) self-adhesive type light modulation projection film can direct pad pasting on existing glass partition, is adapted at the glass partition that built up uses, and surface, through cure process, reaches 3H hardness, is convenient to maintaining.
2) glass partition at new subway station can use light modulation projecting glass, and performance is consistent with self-adhesive type light modulation projection film, and intensity is higher, is easy to maintenance.
The structure of light modulation projection film and light modulation projecting glass is as shown in Figure 3: the structure of light modulation projection film or light modulation projecting glass is middle is PDLC layer, the two-layer ITO conductive layer of outer clip, the more two-layer pet layer of outside folder.The principle that the transparent and opaque state of light modulation projection film and light modulation projecting glass switches is as shown in Figure 4: when light modulation projection film or the power-off of light modulation projecting glass (closed condition), liquid crystal molecule disordered orientation, cause material microscopic refractive indices mismatch, thus produce strong light scattering, now the outward appearance of light modulation projection film or light modulation projecting glass is milky opaque state; When light modulation projection film or the energising of light modulation projecting glass (opening), under electric field action, ordered liquid crystal molecule arranges, and Refractive Index of Material reaches unanimity, and optical radiation is significantly suppressed, and now light modulation film outward appearance is water white transparency state.
The performance parameter of light modulation projection film and light modulation projecting glass is as shown in the table:
Screen display device 1 uses special light modulation projection film or light modulation projecting glass, and imaging effect is remarkable, and picture is soft, without dazzling speck, be suitable for subway glass partition.
Projector 3 is arranged on the top of subway tunnel madial wall, installs firm, can be non-maintaining.Projector 3 adopts Engineering-type high brightness, high definition projector, projector can use DLP or the LCOS display technique of main flow, technical specification is for being not less than 1080p resolution, brightness is more than 4000 lumens, standard system meets 16:9,16:10 or 4:3, and light source can use mercury lamp or laser lamp, bulb life is not less than 2,000 hour.
A kind of information on subway glass shield door provided by the invention and advertisement projection imaging device make full use of platform glass partition under safing prerequisite, the glass partition of subway platform can be allowed to present the image of high definition image quality, glass partition is made to become large-scale visual advertising carrier, play dynamic image to attract to wait the notice of passenger, thus realize good advertising results, create economic interests.When subway is about to enter the station, can for passenger plays the information that subway is about to enter the station on glass partition, glass partition can be allowed to recover transparent when subway enters the station, ensure that subway staff and passenger have good visual field, ensure subway circulation safety, closely agree with the needs of metro safety operation.
The above embodiment only have expressed embodiments of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (9)
1. the projection imaging device on subway glass shield door, is characterized in that, comprises central control system, signal sensory perceptual system, the information transmission system, display system, audio system and security protection system; Central control system is connected with signal sensory perceptual system, the information transmission system, display system, audio system and security protection system respectively;
Described security protection system comprises platform crowd density inductor, screen intensity inductor, projector poses sensor and the urgent switch controller of physics;
Testing result for detecting platform crowd density, and is fed back to central control system by the information transmission system by described platform crowd density inductor;
Testing result for providing the brightness calibration information of display system, and is fed back to central control system by the information transmission system by described screen illumination sensors;
Described attitude sensor is used for providing projector poses adjustment information, and adjustment information is fed back to central control system by the information transmission system;
Described physics emergency governor is also connected with the power supply of described display system, opening and closedown for manual control display system.
2. a kind of projection imaging device on subway glass shield door according to claim 1, it is characterized in that, described projection imaging device also comprises interaction systems, it is connected with central control system by the information transmission system, described interaction systems comprises multi-point touch panel, and described multi-point touch panel adopts attachment process to be arranged in the display system of platform side.
3. a kind of projection imaging device on subway glass shield door according to claim 1 and 2, it is characterized in that, described signal sensory perceptual system comprises train trigger sensor and metro operation signal transmission device; Wherein:
Described train trigger sensor is installed in tunnel, platform both sides, for the open and close of described display system provide triggering command; Described train trigger sensor is selected from infrared, laser, electromagnetism, audio frequency, pressure, displacement or air velocity transducer;
Described metro operation signal transmission device is for transmitting by unified train in/out station PIS information, system time service information and the urgent forewarn information provided of metro operation control center.
4. a kind of projection imaging device on subway glass shield door according to claim 1 and 2, it is characterized in that, described central control system comprises: embedded Control main frame, control protocol and control interface;
Described embedded Control main frame adopts the processing platform of technical grade and supporting operating system;
Described control protocol comprises: TCP_IP agreement, RS-232 agreement, RS-422 agreement, RS-485 agreement, MODBUS agreement or CAN protocol etc.;
Described control interface comprises: RJ45 interface, IR interface, I/O interface or Relay interface etc.
5. a kind of projection imaging device on subway glass shield door according to claim 1 and 2, it is characterized in that, the described information transmission system comprises control information forwarder and image information forwarder, and the transmission mode of employing comprises twisted-pair feeder, optical fiber, RF cable, WIFI and less radio-frequency mode of movement.
6. a kind of projection imaging device on subway glass shield door according to claim 1 and 2, it is characterized in that, described display system comprises projector and screen display device, and described projector is high definition projector, sharpness is not less than 2K, is arranged in platform Gui Hang district; Described screen display device is double glazing sandwich construction, middle layer is light modulation film, or adopt the mode of Electrostatic Absorption to be fitted in by light modulation film on existing shield door glass, light modulation film is connected with power supply, realizes mist state and the clear state of light modulation film by opening and closing power supply.
7. a kind of projection imaging device on subway glass shield door according to claim 1 and 2, it is characterized in that, described audio system comprises: power amplifier and interface attaching type phonation unit; Described power amplifier uses level pressure and fixed-resistance output form; Described phonation unit uses attachment process, adheres on the shield door glass of Hang Qu side in-orbit.
8. utilize the projection imaging device according to any one of claim 1-7 to carry out a method for projection imaging, it is characterized in that,
When signal sensory perceptual system column free pulled in signal feedback to central control system time, and platform crowd density inductor will have the information feed back of the passenger that waits to after central control system, central control system starts display system, audio system and/or interaction systems and runs, now screen display device switches on power, light modulation film is mist state, and projector projects image onto on the screen display device of mist state;
When train home signal is fed back to central control system by signal sensory perceptual system or after the safety value upper limit of platform crowd density inductor result of detection higher than setting, central control system will stop display system, audio system and/or interaction systems to run, now the power supply of screen display device disconnects, the transparent state of light modulation film, projector quits work, and the glass on subway shield door restores to the original state.
9. method according to claim 8, it is characterized in that, display system work time, screen illumination sensors by the information transmission system by environment light sensation data feedback to central control system, and automatically regulate display frame brightness by central control system, improve picture comfort.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510535589.XA CN105047108B (en) | 2015-08-27 | 2015-08-27 | One kind is used for projection imaging device on subway glass shield door |
| PCT/CN2016/096175 WO2017032286A1 (en) | 2015-08-27 | 2016-08-22 | Projection imaging apparatus used on metro glass screen door |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510535589.XA CN105047108B (en) | 2015-08-27 | 2015-08-27 | One kind is used for projection imaging device on subway glass shield door |
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| CN105047108B CN105047108B (en) | 2018-04-06 |
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| CN106205407A (en) * | 2016-09-19 | 2016-12-07 | 姜旭东 | A kind of display system for subway shield door |
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| WO2017032286A1 (en) * | 2015-08-27 | 2017-03-02 | 姜旭东 | Projection imaging apparatus used on metro glass screen door |
| CN107146562A (en) * | 2017-07-04 | 2017-09-08 | 广州米文化传媒有限公司 | Dimming glass film and laser projection timed advertising exhibiting device and its timed advertising methods of exhibiting |
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| CN109816493A (en) * | 2019-01-29 | 2019-05-28 | 济南奥维信息科技有限公司济宁分公司 | The virtual accessories recommender system of new media and method based on liquid crystal light modulation film |
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| CN105047108B (en) | 2018-04-06 |
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Effective date of registration: 20190109 Address after: 100089 1709-039, 113 Zhichun Road, Haidian District, Beijing Patentee after: Gravity video (Beijing) Technology Co., Ltd. Address before: 100195 No. 65 Xingshikou Road, Haidian District, Beijing - 128 Patentee before: Jiang Xudong |