CN107342031A - Front projection type subway shield door projection multimedia system - Google Patents
Front projection type subway shield door projection multimedia system Download PDFInfo
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- CN107342031A CN107342031A CN201710358910.0A CN201710358910A CN107342031A CN 107342031 A CN107342031 A CN 107342031A CN 201710358910 A CN201710358910 A CN 201710358910A CN 107342031 A CN107342031 A CN 107342031A
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- subway train
- liquid crystal
- light modulation
- crystal light
- modulation film
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Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F19/00—Advertising or display means not otherwise provided for
- G09F19/12—Advertising or display means not otherwise provided for using special optical effects
- G09F19/18—Advertising or display means not otherwise provided for using special optical effects involving the use of optical projection means, e.g. projection of images on clouds
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/70—Door leaves
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
- E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS 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
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
- G03B21/56—Projection screens
- G03B21/60—Projection screens characterised by the nature of the surface
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F21/00—Mobile visual advertising
- G09F21/04—Mobile visual advertising by land vehicles
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Accounting & Taxation (AREA)
- Marketing (AREA)
- Theoretical Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Liquid Crystal (AREA)
Abstract
The present invention relates to projection art.Front projection type subway shield door projection multimedia system, including a projecting apparatus and projection screen, in addition to a shield door door body, a liquid crystal light modulation film is stained with front side of shield door door body, projection screen is used as using liquid crystal light modulation film；Projecting apparatus is located at the front of projection screen, and the projecting direction of projecting apparatus is towards projection screen；Also include one to be used to sense the subway train induction system whether subway train rests in platform, the signal output part of subway train induction system connects a processor system, the signal output part connection liquid crystal light modulation film control module of processor system, liquid crystal light modulation film control module connection liquid crystal light modulation film；Processor system connects the power switch of projecting apparatus.When subway train induction system senses that subway train rests in platform, processor system control liquid crystal light modulation film be in "on" position, and then control liquid crystal light modulation film is in pellucidity, is easy to subway train driver observation to arrive at a station interior situation.
Description
Technical field
The present invention relates to the optical projection system of projection art, more particularly to shield door.
Background technology
Subway is the conventional vehicles of contemporary city people trip, flourishing convenient due to subway transportation, more and more
People trip when will pay the utmost attention to subway.Advertising is carried out on subway has obvious advantage, because metro environment is
The space of one relative closure, and very boring during train of awaiting a subway, passenger to the notice of advertisement can significantly on
Rise.
The shield door of subway platform is transparent that the shield door of subway platform is not yet utilized effectively to do at present at present
Advertisement, advertising of the passenger when waiting subway train can not be realized.
The content of the invention
It is an object of the present invention to provide front projection type subway shield door projection multimedia system, with solve it is above-mentioned at least
One technical problem.
Technical problem solved by the invention can be realized using following technical scheme：
Front projection type subway shield door projection multimedia system, including a projecting apparatus and projection screen, it is characterised in that also
Including a shield door door body, a liquid crystal light modulation film is stained with front side of the shield door door body, using the liquid crystal light modulation film as
The projection screen；
The projecting apparatus is located at the front of the projection screen, and the projecting direction of the projecting apparatus is towards the projection screen
Curtain；
Also include one to be used to sense the subway train induction system whether subway train rests in platform, the subway train
The signal output part of induction system connects a processor system, and the signal output part of the processor system is also connected with liquid crystal light modulation
Film control module, the liquid crystal light modulation film control module connect the liquid crystal light modulation film；
The signal output part of the processor system is also connected with the power switch of the projecting apparatus.
When subway train induction system senses that subway train rests in platform, processor system control liquid crystal light modulation film
In "on" position, and then control liquid crystal light modulation film to be in pellucidity, be easy to subway train driver observation to arrive at a station interior situation.This
Invention is used as projection screen, liquid crystal light modulation film, in the case of no electric field action, at liquid crystal light modulation film by liquid crystal light modulation film
In opaque state, it is easy to projecting apparatus to carry out advertising to projection image on liquid crystal light modulation film；When being passed through alternating current, liquid crystal
Molecule realizes ordered arrangement, and at this moment, just never transparent state (OFF state) is converted to transparent state (ON state) to liquid crystal light modulation film.
When subway train induction system senses that subway train rests in platform, processor system control projecting apparatus is in
Closed mode, conversely, projecting apparatus is opened.Signified front of the invention refers to shield door door body away from subway train driving track
Side.
Liquid crystal light modulation film control module includes the controlling switch of a control liquid crystal light modulation film "on" position, and controlling switch is located at
On the line of liquid crystal light modulation film and power supply.
The projecting apparatus is the ultrashort out-of-focus projection's instrument of laser.Realization closely projects.
Also include a human body sensing system, whether the front that the human body sensing system includes being used to detect projection screen has
The pyroelectric infrared sensor of people, the pyroelectric infrared sensor are arranged in shield door door body；
The human body sensing system connects the processor system.
When subway train does not rest in platform, and human body sensing system senses front someone of projection screen, processing
Device system opens projecting apparatus, is projected to liquid crystal light modulation film；When subway train does not rest in platform, and human body sensing system
When sensing front nobody of projection screen, processor system closes projecting apparatus.And then save the electricity that projecting apparatus is opened for a long time
Energy.
The movable end of pyroelectric infrared sensor connection one scan actuating mechanism, the scanning motion mechanism it is non-live
Moved end connects a support.Support is provided with the installed part for being used for being arranged in shield door door body.
The scanning motion mechanism includes motor, and the reciprocally swinging part with the motor linkage, the heat are released
Electric infrared sensor is fixed on the reciprocally swinging part.So that pyroelectric infrared sensor is swept in scanning range reciprocally swinging
Retouch.
As a kind of preferred scheme, the subway train induction system includes active infra-red sensor, described active
Infrared sensor is arranged on subway train parking orbit, and the active infra-red sensor includes an infrared launcher, one
Infrared receiving device, down, the sensing of the infrared receiving device is directed downward the light emission direction of the infrared launcher；
The infrared launcher is each attached to the downside of an installing plate with the infrared receiving device；
At least three screwed holes are offered on the installing plate.
The present invention is easy to realize the fixation of active infra-red sensor through screw by screwed hole.
The upper end of the installing plate is provided with the downward cylindrical bump of at least three projected directions, and adjacent cylindrical is raised
Spacing be 3cm-5cm；
The installing plate is weldingly connected with magnet layer made of a magnet, and the magnet layer, which is provided with, to be used for through the circle
The through hole of columnar projections；
The depth of the through hole is identical with the length of the cylindrical bump, and the cylindrical bump is plugged in the through hole
It is interior, and the cylindrical bump and the through hole gluing；
The upper surface of the magnet layer and the cylindrical bump is coated with an adhesive layer, is covered in front of the adhesive layer
It is stamped an off-style paper layer.
In addition, combination of the present invention by magnet layer, and adhesive layer, realizes magnetic absorption and the effect of adhesion, and then
Improve the fixed effect of active infra-red sensor.In addition, the present invention is carried by the combination provided with cylindrical bump and through hole
The high connective stability of magnet layer and installing plate, when coating adhesive layer, between adhesive layer is penetrated between cylindrical bump and through hole
Gap, and then improve the connective stability of magnet layer and installing plate.Active infra-red sensor is in use, tear off-style paper layer off
It is adhered to by adhesive layer on the inwall in tunnel, screwed hole is then passed through by screw, improves fixed effect.
The infrared launcher is provided with three, and the infrared receiving device is provided with one；
Three infrared launchers are annularly arranged on the periphery of the infrared receiving device.
The present invention by by the active infra-red sensor of a traditional infrared launcher and an infrared receiving device,
The number of infrared launcher is had additional, prevents the failure of single infrared launcher, in addition, preventing some infrared ray from running into barrier
When hindering the thing reflex circuit to shift, infrared receiving device remains to receive the reflection that other infrared launchers send infrared ray
Light, ensure monitoring accuracy.
Light barrier is provided between the infrared launcher and the infrared receiving device, the height of the light barrier is little
In 15mm, and it is not less than 8mm.
The present invention ensures the induction precision of infrared receiving device by baffle plate plate, prevents the transmitting light of infrared launcher
Directly received not in contact with to barrier by infrared receiving device.
The annular via for light barrier installation is offered on installing plate, the lateral wall of baffle plate is provided with external screw thread, baffle plate
Madial wall be provided with internal thread, the internal ring wall of annular via is provided with the external screw thread to match with the internal thread, and ring-type is led to
The external annulus in hole are provided with the internal thread to match with the external screw thread.Infrared launcher, infrared receiving device are easy to implement,
The threaded adjustment of light barrier relative position.
As another preferred scheme, the subway train induction system includes at least three infrared lasers, at least three
Individual infrared receiving device, the infrared launcher are oppositely arranged on subway train parking orbit with the infrared receiving device
Both sides；
The arragement direction of at least three infrared lasers parallel to the subway train parking orbit channeling direction, it is adjacent
Infrared launcher spacing be in 1 meter to 2 meters in the range of.
The present invention is oppositely arranged by multiple infrared lasers with infrared receiving device, is easy to ensure subway train sensing system
The monitoring accuracy of system.
Also include one and be arranged on subway train parking orbit channeling direction end for sensing what whether subway train entered the station
Subway train enters the station sensor；
The subway train sensor that enters the station connects the processor system；
The subway train enter the station shield door door body described in sensor distance spacing be 20 meters -40 meters.
Sensor is entered the station when subway train is not stopped by subway train, monitors the letter that subway train will be stopped
Breath, realize making a response in advance for liquid crystal light modulation film and projecting apparatus.
Processor system connects a warning device；
When subway train enter the station Sensor monitoring entered the station to subway train after, processor system control projecting apparatus close shape
State, liquid crystal light modulation film are in "on" position；
When subway train induction system senses that subway train rests in platform, processor system control projecting apparatus is closed
State, liquid crystal light modulation film are in "on" position；
When the subway train sensor sensing that enters the station enters the station to subway train, and subway train inductive pick-up and it is not sensed by
When resting in platform, processor system control projecting apparatus closed mode, liquid crystal light modulation film is in "on" position, also, dress of alarming
Work is put, reminds maintenance；
Sensor and it is not sensed by subway train when subway train enters the station and enters the station, and subway train inductive pick-up senses
When resting in platform, processor system control projecting apparatus closed mode, liquid crystal light modulation film is in "on" position, also, dress of alarming
Work is put, reminds maintenance；
When subway train induction system senses that subway train does not rest in platform, processor system control projecting apparatus is opened
Open, liquid crystal light modulation film is in obstructed electricity condition, and projecting apparatus is to liquid crystal light modulation film projection image.
The shield door door body includes fixed door, a movement door, and the liquid crystal light modulation film is adhered to the one of the fixed door
Side.Prevent liquid crystal light modulation film to be arranged on the frequent motion of mobile door on mobile door, influence the control effect of liquid crystal light modulation film.Institute
The front or behind of liquid crystal light modulation film can be located at by stating projecting apparatus.
The liquid crystal light modulation film is adhered to the front side of the shield door door body, and the front side of the liquid crystal light modulation film is covered with one
Touch membrane, the signal output part of the touch membrane connect a touch signal processing module, the touch signal processing module connection
Control system, control system connect the projecting apparatus.Touch interaction is easy to implement, changes the picture that projecting apparatus plays.Control system
System can be a PC main frames.It can also be single-chip microcomputer.
The liquid crystal light modulation film is arranged on the front side of shield door door body, and the rear side of the shield door door body is provided with a curtain,
Around being located in first rotating shaft, the lower end of the curtain is connected with the upper end of wire for the upper end of the curtain, the lower end of wire
Around being located in the second rotating shaft；
The first rotating shaft is connected with the pto of the first motor；
Second rotating shaft is connected with the pto of the second motor；
The first rotating shaft is identical with the second rotating shaft direction of rotation, and first rotating shaft is arranged on the upper of the second rotating shaft
Side.
The present invention frequently as curtain by that provided with curtain, when preventing liquid crystal light modulation film failure, just can not use, in addition, originally
Invention is by provided with a curtain, it is achieved thereby that light barrier properties, prevent the picture that projecting apparatus transmits from passing through curtain.The rear table of curtain
Face is coated with a reflexed light film.Prevent light from passing through curtain.When first rotating shaft and the second axis of rotation, if desired for progress advertisement
Projection, curtain is in the rear of liquid crystal light modulation film, when advertisement projection need not be carried out, first rotating shaft, the second axis of rotation,
Wire is in the rear of liquid crystal light modulation film.
Brief description of the drawings
Fig. 1 is a kind of structural representation under installment state of the present invention；
Fig. 2 is a kind of structural representation of active infra-red sensor of the present invention；
Fig. 3 is another structural representation under active infra-red sensor vertical view state of the present invention.
Embodiment
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, tie below
Conjunction, which is specifically illustrating, is expanded on further the present invention.
Referring to Fig. 1, Fig. 2, Fig. 3, front projection type subway shield door projection multimedia system, including a projecting apparatus 2 and projection
Screen, in addition to a shield door door body, be stained with a liquid crystal light modulation film 1 on front side of shield door door body, using liquid crystal light modulation film 1 as
Projection screen；Projecting apparatus is located at the front of projection screen, and the projecting direction of projecting apparatus is towards projection screen；Also it is used for including one
Whether sensing subway train rests in the subway train induction system of platform, the signal output part connection of subway train induction system
One processor system, the power switch of the signal output part connection projecting apparatus 2 of processor system, the signal output of processor system
End is also connected with the control module of liquid crystal light modulation film 1, the control module of liquid crystal light modulation film 1 connection liquid crystal light modulation film 1.
When subway train induction system senses that subway train rests in platform, processor system control liquid crystal light modulation film
1 is in "on" position, and then controls liquid crystal light modulation film 1 to be in pellucidity, is easy to subway train driver observation to arrive at a station interior situation.
The present invention is used as projection screen by liquid crystal light modulation film 1, liquid crystal light modulation film 1, in the case of no electric field action, liquid crystal light modulation
Film 1 is in opaque state, is easy to projecting apparatus 2 to carry out advertising to projection image on liquid crystal light modulation film 1；When being passed through alternating current
When, liquid crystal molecule realizes ordered arrangement, and at this moment, just never transparent state (OFF state) is converted to transparent state (ON state) to liquid crystal light modulation film 1.
When subway train induction system senses that subway train rests in platform, processor system control projecting apparatus 2, which is in, closes shape
State.
Also include a human body sensing system, front that human body sensing system includes being used for detecting projection screen whether someone
Pyroelectric infrared sensor 4, pyroelectric infrared sensor 4 are arranged in shield door door body；Human body sensing system connects processor
System.When subway train does not rest in platform, and human body sensing system senses front someone of projection screen, processor system
System opens projecting apparatus 2, is projected to liquid crystal light modulation film 1；When subway train does not rest in platform, and human body sensing system sense
When should arrive front nobody of projection screen, processor system closes projecting apparatus 2.And then save the electricity that projecting apparatus 2 is opened for a long time
Energy.Signified front of the invention refers to shield door door body away from subway train driving rail side.Pyroelectric infrared sensor connects
The movable end of one scan actuating mechanism is connect, the inactive side of scanning motion mechanism connects a support.Scanning motion mechanism includes electricity
Motivation, and the reciprocally swinging part with motor linkage, pyroelectric infrared sensor are fixed on reciprocally swinging part.It is so that hot
Electric infrared sensor is released to scan in scanning range reciprocally swinging.
As a kind of preferred scheme, subway train induction system includes active infra-red sensor 3, active infra-red sensing
Device 3 is arranged on subway train parking orbit, and active infra-red sensor 3 includes an infrared launcher 31, an infrared receiver
Device 32, down, the sensing of infrared receiving device 32 is directed downward the light emission direction of infrared launcher 31；Infrared launcher
31 are each attached to the downside of an installing plate with infrared receiving device 32；At least three screwed holes 33 are offered on installing plate.This hair
It is bright by screwed hole 33, be easy to realize the fixation of active infra-red sensor 3 through screw.
The upper end of installing plate is provided with the downward cylindrical bump of at least three projected directions, between adjacent cylindrical is raised
Away from for 3cm-5cm；Installing plate is weldingly connected with magnet layer 36 made of a magnet, and magnet layer 36, which is provided with, to be used for through cylindric
Raised through hole；The depth of through hole is identical with the length of cylindrical bump, and cylindrical bump is plugged in through hole, and cylindric convex
Rise and through hole gluing；The upper surface of magnet layer and cylindrical bump is coated with a screwed hole 34, the front covering of screwed hole 34
There is an off-style paper layer 35.In addition, the present invention realizes magnetic absorption and adhesion by magnet layer, and the combination of screwed hole 34
Effect, and then improve the fixed effect of active infra-red sensor 3.In addition, the present invention by provided with cylindrical bump with it is logical
The combination in hole, improves the connective stability of magnet layer and installing plate, and during coated thread hole 34, screwed hole 34 penetrates into cylindric convex
The gap between through hole is played, and then improves the connective stability of magnet layer and installing plate.Active infra-red sensor 3 in use,
Tearing off-style paper layer 35 off can be adhered on the inwall in tunnel by screwed hole 34, then passed through screwed hole 33 by screw, carried
High fixed effect.
Infrared launcher 31 is provided with three, and infrared receiving device 32 is provided with one；Three infrared launchers 31 are in ring
Shape is arranged on the periphery of infrared receiving device 32.The present invention is by by a traditional infrared launcher 31 and an infrared receiver
The active infra-red sensor 3 of device 32, the number of infrared launcher 31 is had additional, prevent single infrared launcher 31
Failure, in addition, when preventing from some infrared ray from running into barrier reflex circuit shifting, infrared receiving device 32 remains to receive
Other infrared launchers 31 send the reflection light of infrared ray, ensure monitoring accuracy.
Light barrier is provided between infrared launcher 31 and infrared receiving device 32, the height of light barrier is not more than 15mm,
And it is not less than 8mm.The present invention ensures the induction precision of infrared receiving device 32 by baffle plate plate, prevents infrared launcher 31
Transmitting light is directly received not in contact with to barrier by infrared receiving device 32.
As another preferred scheme, subway train induction system includes at least three infrared lasers, at least three red
Infrared receiving device, infrared launcher are oppositely arranged on the both sides of subway train parking orbit with infrared receiving device；At least three
The arragement direction of individual infrared laser parallel to subway train parking orbit channeling direction, between adjacent infrared launcher
Away from the range of 1 meter to 2 meters.The present invention is oppositely arranged by multiple infrared lasers with infrared receiving device, is easy to protect
Demonstrate,prove the monitoring accuracy of subway train induction system.
Also include one and be arranged on subway train parking orbit channeling direction end for sensing what whether subway train entered the station
Subway train enters the station sensor；Subway train enter the station sensor connection processor system；Subway train enters the station sensor distance screen
The spacing for covering a door body is 20 meters -40 meters.Sensor is entered the station when subway train is not stopped by subway train, monitors ground
The information that iron train will be stopped, realize making a response in advance for liquid crystal light modulation film and projecting apparatus.
Processor system connects a warning device；When subway train enter the station Sensor monitoring entered the station to subway train after, place
Device system control projecting apparatus closed mode is managed, liquid crystal light modulation film is in "on" position；When subway train induction system senses ground
When iron train rests in platform, processor system control projecting apparatus closed mode, liquid crystal light modulation film is in "on" position；Work as subway
The train sensor sensing that enters the station enters the station to subway train, and subway train inductive pick-up and is not sensed by when resting in platform,
Processor system controls projecting apparatus closed mode, and liquid crystal light modulation film is in "on" position, also, warning device works, and reminds dimension
Repair；Sensor and it is not sensed by subway train when subway train enters the station and enters the station, and subway train inductive pick-up senses stop
In platform, processor system control projecting apparatus closed mode, liquid crystal light modulation film is in "on" position, also, warning device work
Make, remind maintenance；When subway train induction system senses that subway train does not rest in platform, processor system control projection
Instrument is opened, and liquid crystal light modulation film is in obstructed electricity condition, and projecting apparatus is to liquid crystal light modulation film projection image.
Shield door door body includes fixed door, a movement door, and liquid crystal light modulation film is adhered to the side of fixed door.Prevent liquid crystal from adjusting
Light film is arranged on the frequent motion of mobile door on mobile door, influences the control effect of liquid crystal light modulation film.
Liquid crystal light modulation film is adhered to the front side of shield door door body, and the front side of liquid crystal light modulation film touches covered with a touch membrane
The signal output part of film connects a touch signal processing module, touch signal processing module connection control system, and control system connects
Connect projecting apparatus.Touch interaction is easy to implement, changes the picture that projecting apparatus plays.Control system can be a PC main frames.Can also
For single-chip microcomputer.
Or in addition to a touch-control system, touch-control system include the infrared light supply and infrared photography one towards projection screen
Machine, thermal camera connect an image analyzer, image analyzer connection control system；Control system connects projecting apparatus.It is easy to
Realize and indicate that control system changes the projected picture of projecting apparatus according to the gesture of user.
Liquid crystal light modulation film is arranged on the front side of shield door door body, and the rear side of shield door door body is provided with a curtain, curtain it is upper
Around being located in first rotating shaft, the lower end of curtain is connected with the upper end of wire at end, and the lower end of wire is around being located in the second rotating shaft；
First rotating shaft is connected with the pto of the first motor；Second rotating shaft and the pto of the second motor connect
Connect；First rotating shaft is identical with the second rotating shaft direction of rotation, and first rotating shaft is arranged on the top of the second rotating shaft.The present invention is by setting
There is curtain, when preventing liquid crystal light modulation film failure, just can not be used frequently as curtain, in addition, the present invention is by provided with a curtain, from
And light barrier properties are realized, prevent that the picture that projecting apparatus transmits from passing through curtain, improve drop shadow effect.The rear surface of curtain is coated with
One reflexed light film.Prevent light from passing through curtain.When first rotating shaft and during the second axis of rotation, if desired for the projection for carrying out advertisement,
Curtain is in the rear of liquid crystal light modulation film, when advertisement projection need not be carried out, first rotating shaft, the second axis of rotation, and wire
In the rear of liquid crystal light modulation film.
The front side of liquid crystal light modulation film is provided with an overcoat.Realize the protection to liquid crystal light modulation film.Also include a pair of overcoats
The purging system cleaned.Purging system is fixed on the front side of shield door door body.As a kind of preferred scheme, purging system bag
A water injector, a blowning installation are included, the water spraying direction of water injector is prevented towards overcoat, the blowing direction direction of blowning installation
Sheath.And then the cleaning to overcoat is realized, prevent overcoat dust stratification from influenceing projection quality.Purging system also includes one and wiped
Cloth, around being located in first rotating shaft, first rotating shaft is located at the top of overcoat, the lower section of cleaning wiping cloth and two ropes for the upper end of cleaning wiping cloth
The upper end of son is connected, and the lower ends of two ropes is around being located in the second rotating shaft；The horizontal spacing of two ropes is more than overcoat
Horizontal spacing.First rotating shaft passes through the second motor-driven rotation by the first motor-driven rotation, the second rotating shaft.First rotating shaft is real
Existing when tightening up of cleaning wiping cloth, the second rotating shaft control two ropes to loosen.First rotating shaft realizes when loosening of cleaning wiping cloth, the second rotating shaft
Two ropes of control are tightened up.When purging system works, after spraying water first, dried up by blowning installation, then pass through wiping
Cloth, wipe, improve cleaning effect.First rotating shaft and the rotation of the second rotating shaft, it is possible to achieve what cleaning wiping cloth wiped on overcoat
At the same time it can also realize replacing that both cleaning wiping cloth and rope are on front side of overcoat.
The general principle and principal character and advantages of the present invention of the present invention has been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (10)
1. front projection type subway shield door projection multimedia system, including a projecting apparatus and projection screen, it is characterised in that also wrap
A shield door door body is included, a liquid crystal light modulation film is stained with front side of the shield door door body, institute is used as using the liquid crystal light modulation film
State projection screen；
The projecting apparatus is located at the front of the projection screen, and the projecting direction of the projecting apparatus is towards the projection screen；
Also include one to be used to sense the subway train induction system whether subway train rests in platform, the subway train sensing
The signal output part of system connects a processor system, the signal output part connection liquid crystal light modulation film control of the processor system
Module, the liquid crystal light modulation film control module connect the liquid crystal light modulation film；
The signal output part of the processor system is also connected with the power switch of the projecting apparatus.
2. front projection type subway shield door projection multimedia system according to claim 1, it is characterised in that also including one
Human body sensing system, whether the rpyroelectric infrared of someone passes in the front that the human body sensing system includes being used to detect projection screen
Sensor, the pyroelectric infrared sensor are arranged in shield door door body；
The human body sensing system connects the processor system.
3. front projection type subway shield door projection multimedia system according to claim 2, it is characterised in that the subway
Train induction system includes active infra-red sensor, and the active infra-red sensor is arranged on subway train parking orbit
On, the active infra-red sensor includes an infrared launcher, an infrared receiving device, the hair of the infrared launcher
Down, the sensing of the infrared receiving device is directed downward light direction；
The infrared launcher is each attached to the downside of an installing plate with the infrared receiving device；
At least three screwed holes are offered on the installing plate.
4. front projection type subway shield door projection multimedia system according to claim 3, it is characterised in that the installation
The upper end of plate is provided with the downward cylindrical bump of at least three projected directions, and the raised spacing of adjacent cylindrical is 3cm-5cm；
The installing plate is weldingly connected with magnet layer made of a magnet, and the magnet layer, which is provided with, to be used for through described cylindric
Raised through hole；
The depth of the through hole is identical with the length of the cylindrical bump, and the cylindrical bump is plugged in the through hole,
And the cylindrical bump and the through hole gluing；
The upper surface of the magnet layer and the cylindrical bump is coated with an adhesive layer, the front of the adhesive layer covered with
One off-style paper layer.
5. front projection type subway shield door projection multimedia system according to claim 3, it is characterised in that described infrared
Emitter is provided with three, and the infrared receiving device is provided with one；
Three infrared launchers are annularly arranged on the periphery of the infrared receiving device；
Light barrier is provided between the infrared launcher and the infrared receiving device, the height of the light barrier is not more than
15mm, and it is not less than 8mm.
6. front projection type subway shield door projection multimedia system according to claim 1, it is characterised in that the subway
Train induction system includes at least three infrared lasers, at least three infrared receiving devices, the infrared launcher and institute
State the both sides that infrared receiving device is oppositely arranged on subway train parking orbit；
For the arragement direction of at least three infrared lasers parallel to the channeling direction of the subway train parking orbit, adjacent is red
The spacing of outer emitter is in the range of 1 meter to 2 meters.
7. front projection type subway shield door projection multimedia system according to claim 1, it is characterised in that also including one
It is used to sensing the subway train whether subway train enter the station installed in subway train parking orbit channeling direction end to enter the station sensing
Device；
The subway train sensor that enters the station connects the processor system；
The subway train enter the station shield door door body described in sensor distance spacing be 20 meters -40 meters.
8. front projection type subway shield door projection multimedia system according to claim 7, it is characterised in that processor system
System one warning device of connection；
When subway train enter the station Sensor monitoring entered the station to subway train after, processor system control projecting apparatus closed mode, liquid
Brilliant light modulation film is in "on" position；
When subway train induction system senses that subway train rests in platform, processor system control projecting apparatus closes shape
State, liquid crystal light modulation film are in "on" position；
When the subway train sensor sensing that enters the station enters the station to subway train, and subway train inductive pick-up and it is not sensed by stop
In platform, processor system control projecting apparatus closed mode, liquid crystal light modulation film is in "on" position, also, warning device work
Make, remind maintenance；
Sensor and it is not sensed by subway train when subway train enters the station and enters the station, and subway train inductive pick-up senses stop
In platform, processor system control projecting apparatus closed mode, liquid crystal light modulation film is in "on" position, also, warning device work
Make, remind maintenance；
When subway train induction system senses that subway train does not rest in platform, processor system control projecting apparatus is opened,
Liquid crystal light modulation film is in obstructed electricity condition, and projecting apparatus is to liquid crystal light modulation film projection image.
9. front projection type subway shield door projection multimedia system according to claim 1, it is characterised in that the liquid crystal
Light modulation film is adhered to the front side of the shield door door body, and the front side of the liquid crystal light modulation film is covered with a touch membrane, the touch
The signal output part of film connects a touch signal processing module, and the touch signal processing module connects control system, the control
System processed connects the projecting apparatus.
10. front projection type subway shield door projection multimedia system according to claim 1, it is characterised in that the throwing
Shadow instrument is the ultrashort out-of-focus projection's instrument of laser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710358910.0A CN107342031A (en) | 2017-05-19 | 2017-05-19 | Front projection type subway shield door projection multimedia system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710358910.0A CN107342031A (en) | 2017-05-19 | 2017-05-19 | Front projection type subway shield door projection multimedia system |
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| CN107342031A true CN107342031A (en) | 2017-11-10 |
Family
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|---|---|---|---|
| CN201710358910.0A Pending CN107342031A (en) | 2017-05-19 | 2017-05-19 | Front projection type subway shield door projection multimedia system |
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Application publication date: 20171110 |