CN106226932A - The control system of liquid crystal light modulation film and method - Google Patents
The control system of liquid crystal light modulation film and method Download PDFInfo
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- CN106226932A CN106226932A CN201610589158.6A CN201610589158A CN106226932A CN 106226932 A CN106226932 A CN 106226932A CN 201610589158 A CN201610589158 A CN 201610589158A CN 106226932 A CN106226932 A CN 106226932A
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
- G02F1/13318—Circuits comprising a photodetector
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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Abstract
The invention discloses a kind of control system and the method for liquid crystal light modulation film.Wherein, described control system includes: preset multiple nodes of mailing address, and the central controller being connected with each multi-node wireless communication；Wherein, described node includes: at least one sense node, for sensing the environmental information around liquid crystal light modulation film；The small power supply plate node being connected with liquid crystal light modulation film, for adjusting the light transmittance of liquid crystal light modulation film based on the brightness adjustment control instruction received；Described central controller is configured with the mailing address of each node, for according to each mailing address configured, obtain described environmental information and described environmental information is analyzed, generate brightness adjustment control instruction based on analysis result, and according to each mailing address configured, described brightness adjustment control instruction correspondence is sent.The present invention not only efficiently solves the problem that circuit leaks outside, circuit arranges of connection, moreover it is possible to control the light transmittance of liquid crystal light modulation film according to environmental information.
Description
Technical field
The present embodiments relate to control technology, particularly relate to control system and the method for a kind of liquid crystal light modulation film.
Background technology
Liquid crystal light modulation film (PDLC) is PDLC light modulation film.When having outside applying external voltage, liquid crystal light modulation film
Light transmittance can be adjusted, thus full impregnated, the impermeable and change of middle gray can be realized.Owing to light transmittance is adjustable, liquid crystal light modulation film should
The fields such as decorating for commercial space, decoratees in hotel, projection displaying.
For the light transmittance of more flexible control PDLC light modulation film, and then different light transmittance is utilized to realize and actual applied field
Control that scape matches application (such as advertisement putting and projection displaying etc.), the set-up of control system of liquid crystal light modulation film polytype
Node, as liquid crystal light modulation film small power supply plate node, control device etc..But the increase of node is in requisition for line attachment even
Connect.For glass curtain wall being transformed into the engineering of the controlled printing opacity of liquid crystal light modulation film, the side of existing wired connection
Formula have impact on the finishing effect of the scene such as market, meeting room, and control device and need to manually start and close.Accordingly, it would be desirable to it is right
The control system of existing liquid crystal light modulation film improves.
Summary of the invention
The present invention provides a kind of control system and the method for liquid crystal light modulation film, to solve the liquid crystal light modulation film to glass curtain wall
For improvement project, each node line connects the circuit caused and leaks outside and cannot automatically control printing opacity according to environmental change
The problems such as rate.
First aspect, embodiments provides the control system of a kind of liquid crystal light modulation film, including: preset mailing address
Multiple nodes, and the central controller being connected with each multi-node wireless communication；Wherein, described node includes: at least one sense
Answer node, for sensing the environmental information around liquid crystal light modulation film；The small power supply plate node being connected with liquid crystal light modulation film, for base
The light transmittance of liquid crystal light modulation film is adjusted in the brightness adjustment control instruction received；Described central controller is configured with each node
Mailing address, for according to each mailing address configured, obtains described environmental information and is analyzed described environmental information,
Generate brightness adjustment control instruction based on analysis result, and according to each mailing address configured, described brightness adjustment control instruction correspondence is sent out
Send.
Second aspect, the embodiment of the present invention additionally provides the control method of a kind of liquid crystal light modulation film, including: based on channel radio
Letter mode, obtains the environmental information around the liquid crystal light modulation film that at least one sense node is sensed；Described environmental information is entered
Row is analyzed, and generates brightness adjustment control instruction based on analysis result, and according to the small power supply plate being connected with liquid crystal light modulation film configured
Described brightness adjustment control instruction correspondence is sent by the mailing address of node；Wherein, described small power supply plate node is according to the tune received
Photocontrol instruction adjusts the light transmittance of liquid crystal light modulation film.
The present invention utilizes the communication of each node and central controller, not only efficiently solves connection
Circuit leaks outside, circuit arranges problem, moreover it is possible to control the light transmittance of liquid crystal light modulation film according to environmental information.
Accompanying drawing explanation
Fig. 1 is the structural representation of the control system of a kind of liquid crystal light modulation film in the embodiment of the present invention one；
Fig. 2 is the structural representation of the control system of the another kind of liquid crystal light modulation film in the embodiment of the present invention one；
Fig. 3 is the flow chart of the control method of the liquid crystal light modulation film in the embodiment of the present invention two.
Detailed description of the invention
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention, rather than limitation of the invention.It also should be noted that, in order to just
Part related to the present invention is illustrate only rather than entire infrastructure in description, accompanying drawing.
Embodiment one
The structural representation of the control system of the liquid crystal light modulation film that Fig. 1 provides for the embodiment of the present invention one, the present embodiment can
It is applicable to carry out the situation of multimedia control on the glass surface of the outer glass surface of commercial building or meeting room.Wherein at glass
Liquid crystal light modulation film is pasted on face.Described control system specifically includes: presets multiple nodes of mailing address, and leads to each node wireless
The central controller that letter connects.Wherein, the mode of described radio communication includes but not limited to: wifi etc..For the ease of node
Adjusting and adapt to the scene without WiFi, the mode of described radio communication preferably employs radio communication based on ZigBee.Wherein, respectively
Node is preset with address information based on wireless communication protocol, and the address information of described central controller.Such as, nothing
Line communication mode uses Zigbee protocol, and the address information preset in the most each node is short address.For the ease of address maintenance, skill
Art personnel can be according to the function of each node, for each function distribution short address section, have identical function multiple nodes shortly
Location is positioned at corresponding short address section.
Described node includes: at least one sense node 11 and the small power supply plate node 12 being connected with liquid crystal light modulation film 2.
In a kind of alternative, described node also includes player node 14.As shown in Figure 2.
Described sense node 11 is for sensing the environmental information around liquid crystal light modulation film 2.Wherein, described sense node 11 is wrapped
Include but be not limited to: photoinduction node 111 and/or distance sense node 112.As shown in Figure 2.
Described photoinduction node 111 is exemplified as comprising photosensitive sensors and the device of ZigBee communication module, and it can be arranged
Side at liquid crystal light modulation film.If the quantity of liquid crystal light modulation film is multiple, the most described photoinduction node 111 may be provided at all liquid
The side of brilliant light modulation film, or between two of which liquid crystal light modulation film.According to actual application scenarios, described photoinduction node 111 can
To be arranged in meeting room, it is also possible to be disposed in the outdoor.Described photoinduction node 111 is used for institute according to default time interval
The light sensation information of the liquid crystal light modulation film place environment of sensing is sent to central controller 13 by communication.
The device that described distance sense node 112 is exemplified as comprising infrared sensor and ZigBee communication module its can arrange
Side at liquid crystal light modulation film.If the quantity of liquid crystal light modulation film is multiple, the most described distance sense node 112 may be provided at all
Between the side of liquid crystal light modulation film, or two of which liquid crystal light modulation film.Described distance sense node 112 is used for sensing external object
And the range information between liquid crystal light modulation film, and it is sent to central controller 13 by communication.Wherein, outside described
Boundary's object can be the article etc. entrained by pedestrian, pedestrian.Described distance sense node 112 can according to actual application scenarios (as
Meeting room or business's outdoor glass etc.), in the middle part of the region that multiple liquid crystal light modulation films are spliced/bottom water horizontal line on, arrange at least
One distance sense node 112.
Described player node 14 is exemplified as comprising the device of projector equipment and wireless communication module, for based on being received
Broadcasting control instruction broadcast program list in multimedia file.Wherein, described broadcasting control instruction can comprise with down to
Few a kind of information: play instruction, pause instruction, halt instruction and played file information.Described multimedia file includes but does not limits
In: image, slide files, video and audio frequency and video etc..
Small power supply plate node 12 is the control circuit of liquid crystal light modulation film 2, and it comprises for controlling liquid crystal light modulation film 2 light transmittance
Circuit and wireless communication module, for based on received brightness adjustment control instruction adjust liquid crystal light modulation film 2 light transmittance.Each
Liquid crystal light modulation film 2 one small power supply plate node 12 of corresponding configuration.When multiple liquid crystal light modulation films are combined into a big screen, little electricity
Source plate node 12 is arranged in four limits of screen.
Described central controller 13 is configured with the mailing address of each node, for according to configured each the most communicatedly
Location, obtains described environmental information and is analyzed described environmental information, determines that control instruction is play in generation based on analysis result
And/or brightness adjustment control instruction, and according to each mailing address configured, described broadcasting control instruction and/or brightness adjustment control are instructed
Corresponding transmission.Wherein, described central controller 13 includes but not limited to: embedded device or computer equipment etc..Wherein,
Embedded device includes but not limited to: remote controller, single-chip microcomputer etc..
Here, have configuration file in described central controller 13, in configuration file according to default form (as
XML) corresponding relation of the mailing address of each node, nodal information is set.Described central controller 13 is by reading configuration literary composition
Part determines the mailing address of each node, thus determines the implication of received environmental information.
If the environmental information that described central controller 13 is received is light sensation information, by the light sensation information that received with pre-
If light sensation threshold value compare, and according to comparative result output comprise printing opacity or lighttight brightness adjustment control instruction, work as output
When comprising the instruction of lighttight brightness adjustment control, also send to described player node 14 and play control instruction.
Such as, liquid crystal light modulation film is arranged on the glass wall of market, and photoinduction node 111 is in real time to central controller 13
Send light sensation information.When described central controller 13 detects that current light sensation information higher than the light sensation threshold value preset, is then assert and worked as
Front is daytime, and described central controller 13 is according to the address information of pre-configured each small power supply plate node 12, to each small power supply
Plate node 12 sends the brightness adjustment control instruction comprising printing opacity, and enters light transmission state.Described small power supply plate node 12 control regulation phase
The light transmittance of the liquid crystal light modulation film 2 answered is maximum.When the result detected by described central controller 13 is from current light sensation information
When transferring, higher than the light sensation threshold value preset, the light sensation threshold value that current light sensation information is not higher than preset to, described central controller 13 enters
Enter light tight state, meanwhile, send to each small power supply plate node 12 and comprise the instruction of lighttight brightness adjustment control, cause described
The light transmittance that small power supply plate node 12 control regulates corresponding liquid crystal light modulation film 2 is minimum.Meanwhile or sending brightness adjustment control refer to
After order, described central controller 13 sends to described player node 14 and plays control instruction.So, described liquid crystal light modulation
Film 2 will become for presenting multimedia screen.
It is only for example it should be noted that the light transmittance of above-mentioned liquid crystal light modulation film 2 adjusts mode, rather than the limit to the present invention
System.It practice, central controller 13 can be each by judging the correspondence preset that currently received photoinduction information is fallen into
The light sensation threshold interval of light transmittance grade, generates the brightness adjustment control instruction comprising concrete light transmittance.
Also, it should be noted above-mentioned application scenarios is also applied for indoor.
If described central controller 13 receiving range information, then by the range information received and the distance threshold preset
Comparing, when determining described range information less than or equal to distance threshold, output comprises the brightness adjustment control instruction of printing opacity.
A kind of mode is, described central controller 13 real-time reception range information, and by the range information that received with
The distance threshold preset compares, and when determining described range information more than distance threshold, does not carry out subsequent treatment, continues inspection
Surveying new range information, when determining described range information less than or equal to distance threshold, the brightness adjustment control that output comprises printing opacity refers to
Order.
Another way is, described central controller 13 during light tight state, just real-time reception range information, and
Carry out above-mentioned comparison, and the comparative result according to current distance information Yu distance threshold, it is determined whether output comprises printing opacity
Brightness adjustment control instructs.
Such as, multiple liquid crystal light modulation films 2 splice on indoor glass wall.Central controller 13 is in the different light state phases
Between, detect current distance information less than distance threshold, before illustrating that someone stands in glass wall.In order to provide transparent glass to this people
Glass wall, in order to he sees the scenery outside glass wall clearly, described central controller 13 is according to pre-configured each small power supply plate node 12
Address information, sends the brightness adjustment control instruction comprising printing opacity to each small power supply plate node 12.
When the quantity of liquid crystal light modulation film 2 and small power supply plate node 12 is multiple, a kind of alternative is that described center is controlled
In device 13 processed between mailing address and the mailing address of small power supply plate node 12 of the most pre-configured distance sense node 112
Pair relationhip, for when determining described range information less than or equal to distance threshold, according to pre-configured distance sense node 112
Mailing address and the mailing address of small power supply plate node 12 between pair relationhip, to pairing small power supply plate node 12 send
Comprise the brightness adjustment control instruction of printing opacity.
Such as, in the configuration file of central controller 13, the mailing address of distance sense node A1 and little electricity have been preset
With this, the corresponding relation of the mailing address of source plate node B1, illustrates that the range information when distance sense node A1 being detected is less than
When distance threshold, described central controller 13 is to the mailing address according to small power supply plate node B1, to small power supply plate node
B1 sends the brightness adjustment control instruction comprising printing opacity, without sending the instruction of this brightness adjustment control to all small power supply plates.
Here, described central controller 13 communication based on ZigBee, logical with what each node communicated
Letter agreement can self-defining.Wireless communication module based on ZigBee in described central controller 13 and each node is according in advance
Data are packaged and transmit by the unified communication protocol first set.
It should be noted that above-mentioned pair relationhip is only for example, rather than limitation of the present invention.The most above-mentioned pairing is closed
System can be one-to-many, it might even be possible to have the mode of overlapping pairing.
The present embodiment utilizes the communication of each node and central controller, efficiently solves the line of connection
The problems such as road leaks outside, circuit arrangement.Meanwhile, the environmental information provided according to sense node controls the printing opacity of liquid crystal light modulation film
Rate, it is possible to automatically control player node and small power supply plate node matches, allow people watch multimedia file.It addition, utilize
The range information that distance sense node is provided, the light transmittance controlling the part small power supply plate node corresponding liquid crystal light modulation film of regulation is
Maximum, it is possible to for the position having people to be stood, to provide the user the demand seeing glass opposite side scene through liquid crystal light modulation film.
Embodiment two
The flow chart of the control method of the liquid crystal light modulation film that Fig. 3 provides for the embodiment of the present invention two, the present embodiment is applicable
The situation of multimedia control is carried out on the glass surface at the outer glass surface of commercial building or meeting room.Wherein on glass surface
Patch liquid crystal light modulation film.Described control method is mainly performed by control system.Wherein, described control system includes: preset communication
Multiple nodes of address, and the central controller being connected with each multi-node wireless communication.Wherein, the mode bag of described radio communication
Include but be not limited to: wifi etc..For the ease of knot adjustment with adapt to without the scene of WiFi, the mode of described radio communication is preferably adopted
By radio communication based on ZigBee.Wherein, each node is preset with address information based on wireless communication protocol, and described
The address information of central controller.Such as, communication uses Zigbee protocol, the address letter preset in the most each node
Breath is short address.For the ease of address maintenance, technical staff can distribute short address according to the function of each node for each function
Section, the short address of multiple nodes with identical function is positioned at corresponding short address section.
Described node includes: at least one sense node and the small power supply plate node being connected with liquid crystal light modulation film.One can
Selecting in scheme, described node also includes player node.
Described sense node is for sensing the environmental information around liquid crystal light modulation film.Wherein, described sense node include but
It is not limited to: photoinduction node and/or distance sense node.
Described photoinduction node is exemplified as comprising photosensitive sensors and the device of ZigBee communication module, and it may be provided at liquid
The side of brilliant light modulation film.If the quantity of liquid crystal light modulation film is multiple, the most described photoinduction node may be provided at all liquid crystal light modulations
Between the side of film, or two of which liquid crystal light modulation film.According to actual application scenarios, described photoinduction node can be arranged on meeting
View indoor, it is also possible to be disposed in the outdoor.Described photoinduction node is for adjusting the liquid crystal sensed according to default time interval
The light sensation information of light film place environment is sent to central controller by communication.
The device that described distance sense node is exemplified as comprising infrared sensor and ZigBee communication module its may be provided at
The side of liquid crystal light modulation film.If the quantity of liquid crystal light modulation film is multiple, the most described distance sense node may be provided at all liquid crystal
Between the side of light modulation film, or two of which liquid crystal light modulation film.Described distance sense node is used for sensing external object and liquid crystal
Range information between light modulation film, and it is sent to central controller by communication.Wherein, described external object can
To be the article etc. entrained by pedestrian, pedestrian.Described distance sense node can be according to actual application scenarios (such as meeting room or business
Outdoor glass etc.), in the middle part of the region that multiple liquid crystal light modulation films are spliced/bottom water horizontal line on, at least one distance perspective is set
Answer node.
Described player node is exemplified as comprising the device of projector equipment and wireless communication module, for based on being received
Play multimedia file in control instruction broadcast program list.Wherein, described broadcasting control instruction can comprise following at least
A kind of information: play instruction, pause instruction, halt instruction and played file information.Described multimedia file includes but does not limits
In: image, slide files, video and audio frequency and video etc..
Small power supply plate node is the control circuit of liquid crystal light modulation film, and it comprises the electricity for controlling liquid crystal light modulation film light transmittance
Road and wireless communication module, for adjusting the light transmittance of liquid crystal light modulation film based on the brightness adjustment control instruction received.Each liquid crystal
Light modulation film correspondence one small power supply plate node of configuration.When multiple liquid crystal light modulation films are combined into a big screen, small power supply plate saves
Point is arranged in four limits of screen.
Each step in described control method, is mainly performed by the central controller in control system, and each node is joined
Close described central controller and realize control process.
Wherein, described central controller is configured with the mailing address of each node.
Step S110, described central controller, according to each mailing address configured, obtain by the way of radio communication
Take described environmental information.
Described environmental information is analyzed by step S120, described central controller, determines generation based on analysis result
Play control instruction and/or brightness adjustment control instruction, and according to each mailing address configured by described broadcasting control instruction and/or
Brightness adjustment control instruction correspondence sends.Wherein, described central controller includes but not limited to: embedded device or computer set
Standby etc..Wherein, embedded device includes but not limited to: remote controller, single-chip microcomputer etc..
Here, have configuration file in described central controller, according to default form (such as XML) in configuration file
The corresponding relation of the mailing address of each node, nodal information is set.Described central controller is true by reading configuration file
The mailing address of fixed each node, thus determines the implication of received environmental information.
If the environmental information that described central controller is received is light sensation information, by the light sensation information that received with preset
Light sensation threshold value compare, and according to comparative result output comprise printing opacity or lighttight brightness adjustment control instruction, when output bag
When instructing containing lighttight brightness adjustment control, also send to described player node and play control instruction.
Such as, liquid crystal light modulation film is arranged on the glass wall of market, and photoinduction node sends light to central controller in real time
Sense information.When described central controller detects current light sensation information higher than the light sensation threshold value preset, then assert to be currently white
My god, described central controller, according to the address information of pre-configured each small power supply plate node, sends to each small power supply plate node
Comprise the brightness adjustment control instruction of printing opacity, and enter light transmission state.Described small power supply plate node control regulates corresponding liquid crystal light modulation film
Light transmittance maximum.When the result detected by described central controller from current light sensation information higher than the light sensation threshold value preset
When transferring the light sensation threshold value that current light sensation information is not higher than preset to, described central controller enters light tight state, same with this
Time, send to each small power supply plate node and comprise the instruction of lighttight brightness adjustment control, cause described small power supply plate node control to regulate phase
The light transmittance of the liquid crystal light modulation film answered is minimum.Meanwhile or send brightness adjustment control instruction after, described central controller
Send to described player node and play control instruction.So, described liquid crystal light modulation film will become for presenting multimedia screen
Curtain.
It is only for example it should be noted that the light transmittance of above-mentioned liquid crystal light modulation film adjusts mode, rather than the limit to the present invention
System.It practice, central controller can be each by judging the correspondence preset that currently received photoinduction information is fallen into
The light sensation threshold interval of light rate grade, generates the brightness adjustment control instruction comprising concrete light transmittance.
Also, it should be noted above-mentioned application scenarios is also applied for indoor.
If described central controller receiving range information, then the range information received is entered with the distance threshold preset
Row comparison, when determining described range information less than or equal to distance threshold, output comprises the brightness adjustment control instruction of printing opacity.
A kind of mode is, described central controller real-time reception range information, and by the range information that received with pre-
If distance threshold compare, when determining described range information more than distance threshold, do not carry out subsequent treatment, continue detection
New range information, when determining described range information less than or equal to distance threshold, output comprises the brightness adjustment control instruction of printing opacity.
Another way is, described central controller during light tight state, just real-time reception range information, go forward side by side
The above-mentioned comparison of row, and the comparative result according to current distance information Yu distance threshold, it is determined whether output comprises the tune of printing opacity
Photocontrol instructs.
Such as, the splicing of multiple liquid crystal light modulation films is on indoor glass wall.Central controller during different light states,
Detect current distance information less than distance threshold, before illustrating that someone stands in glass wall.In order to provide transparent glass to this people
Wall, in order to he sees the scenery outside glass wall clearly, described central controller is according to pre-configured each small power supply plate node address letter
Breath, sends the brightness adjustment control instruction comprising printing opacity to each small power supply plate node.
When the quantity of liquid crystal light modulation film and small power supply plate node is multiple, a kind of alternative is that described center controls
Pair relationhip between mailing address and the mailing address of small power supply plate node of the most pre-configured distance sense node in device,
For when determining described range information less than or equal to distance threshold, according to the mailing address of pre-configured distance sense node with
Pair relationhip between the mailing address of small power supply plate node, sends, to the small power supply plate node of pairing, the light modulation control comprising printing opacity
System instruction.
Such as, in the configuration file of central controller, mailing address and the small power supply of distance sense node A1 have been preset
With this, the corresponding relation of the mailing address of plate node B1, illustrates that the range information when distance sense node A1 being detected is less than or equal to
During distance threshold, described central controller, to the mailing address according to small power supply plate node B1, is sent out to small power supply plate node B1
Send the brightness adjustment control instruction comprising printing opacity, without sending the instruction of this brightness adjustment control to all small power supply plates.
Here, described central controller communication based on ZigBee, the communication communicated with each node
Agreement can self-defining.Wireless communication module based on ZigBee in described central controller and each node is according to setting in advance
Data are packaged and transmit by fixed unified communication protocol.
It should be noted that above-mentioned pair relationhip is only for example, rather than limitation of the present invention.The most above-mentioned pairing is closed
System can be one-to-many, it might even be possible to have the mode of overlapping pairing.
Note, above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The invention is not restricted to specific embodiment described here, can carry out for a person skilled in the art various obvious change,
Readjust and substitute without departing from protection scope of the present invention.Therefore, although by above example, the present invention is carried out
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
Other Equivalent embodiments more can be included, and the scope of the present invention is determined by scope of the appended claims.
Claims (10)
1. the control system of a liquid crystal light modulation film, it is characterised in that including: preset mailing address multiple nodes, and with respectively
The central controller that multi-node wireless communication connects；
Wherein, described node includes:
At least one sense node, for sensing the environmental information around liquid crystal light modulation film；
The small power supply plate node being connected with liquid crystal light modulation film, for adjusting liquid crystal light modulation film based on the brightness adjustment control instruction received
Light transmittance；
Described central controller is configured with the mailing address of each node, for according to each mailing address configured, obtains
Described environmental information is also analyzed by described environmental information, generates brightness adjustment control instruction based on analysis result, and according to being joined
Described brightness adjustment control instruction correspondence is sent by each mailing address put.
The control system of liquid crystal light modulation film the most according to claim 1, it is characterised in that described node also includes:
The pre-configured player node of mailing address, for based on many in the broadcasting control instruction broadcast program list received
Media file；
Corresponding, described central controller and described player multi-node wireless communication, it is additionally operable to generate institute based on analysis result
State broadcasting control instruction, and described broadcasting control instruction is sent to described according to the mailing address of pre-configured player node
Player node.
The control system of liquid crystal light modulation film the most according to claim 1 and 2, it is characterised in that described radio communication includes:
Radio communication based on ZigBee.
The control system of liquid crystal light modulation film the most according to claim 1, it is characterised in that described sense node includes:
Photoinduction node, for sensing the light sensation information around liquid crystal light modulation film；
And/or, distance sense node, for sensing the range information between external object and liquid crystal light modulation film.
The control system of liquid crystal light modulation film the most according to claim 4, it is characterised in that described central controller is used for
The light sensation information received is compared with the light sensation threshold value preset, and comprises printing opacity or light tight according to comparative result output
Brightness adjustment control instruction.
6. according to the control system of the liquid crystal light modulation film described in claim 4 or 5, it is characterised in that described central controller
For the range information received is compared with the distance threshold preset, when determining that described range information is less than or equal to distance
During threshold value, output comprises the brightness adjustment control instruction of printing opacity.
The control system of liquid crystal light modulation film the most according to claim 6, it is characterised in that liquid crystal light modulation film and small power supply plate
The quantity of node is multiple, and described central controller is additionally operable to when determining described range information less than or equal to distance threshold,
The pair relationhip between mailing address and the mailing address of small power supply plate node according to pre-configured distance sense node, to joining
To small power supply plate node send comprise printing opacity brightness adjustment control instruction.
8. the control method of a liquid crystal light modulation film, it is characterised in that including:
Based on communication, obtain the environmental information around the liquid crystal light modulation film that at least one sense node is sensed；
Described environmental information is analyzed, generates brightness adjustment control instruction based on analysis result, and according to configured and liquid crystal
Described brightness adjustment control instruction correspondence is sent by the mailing address of the small power supply plate node that light modulation film is connected；Wherein, described small power supply
Plate node adjusts the light transmittance of liquid crystal light modulation film according to the brightness adjustment control instruction received.
The control method of liquid crystal light modulation film the most according to claim 8, it is characterised in that described environmental information is being carried out
After analysis, also include:
Generate based on described analysis result and play control instruction, and according to the mailing address of pre-configured player node by described
Play control instruction and be sent to corresponding player node；Wherein, described player node is based on the broadcasting control instruction received
Multimedia file in broadcast program list.
The control method of liquid crystal light modulation film the most according to claim 8, it is characterised in that described environmental information includes: use
Light sensation information around sensing liquid crystal light modulation film；
Corresponding, described environmental information is analyzed, generates brightness adjustment control instruction based on analysis result, including: will be received
Light sensation information with preset light sensation threshold value compare, and according to comparative result generate comprise printing opacity or lighttight light modulation control
System instruction；
And/or, described environmental information includes: for sensing the range information between external object and liquid crystal light modulation film；
Corresponding, described environmental information is analyzed, generates brightness adjustment control instruction based on analysis result, including: will be received
Range information with preset distance threshold compare, when determine described range information less than or equal to distance threshold time, generate
Comprise the brightness adjustment control instruction of printing opacity.
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| CN201610589158.6A CN106226932A (en) | 2016-07-25 | 2016-07-25 | The control system of liquid crystal light modulation film and method |
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Application publication date: 20161214 |