CN109947381A - The Multi-line linkage control method and control system of a kind of subway semi-transparent display apparatus group - Google Patents
The Multi-line linkage control method and control system of a kind of subway semi-transparent display apparatus group Download PDFInfo
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Abstract
The present invention provides a kind of Multi-line linkage control methods of subway semi-transparent display apparatus group, it applies in subway station, semi-transparent display apparatus group is installed on fixed mask door in subway station, the semi-transparent display apparatus group includes first semi-transparent display apparatus group of setting side by side up and down and the second semi-transparent display apparatus group, first semi-transparent display apparatus group is mounted on the top of second semi-transparent display apparatus group, this method comprises: step S1: by inbound communication labeled as the state that entered the station；Step S2: current inbound number is determined；Step S3: N number of transfer number threshold value in different time periods is read；Step S4: it determines when interior number of setting out in advance to make arrangements；Step S5: it determines and opens the first semi-transparent display apparatus group or the second semi-transparent display apparatus group；By obtaining transfer number and inbound number in current slot, determines number in standing, the local chip that controls is made to open the first semi-transparent display apparatus group or the second semi-transparent display apparatus group.
Description
Technical field
The present invention relates to display screen control technology fields, and in particular to a kind of subway semi-transparent display apparatus group it is multi-thread
Inter-linked controlling method and control system.
Background technique
Display (display) is also generally referred to as monitor.Display is the I/O equipment for belonging to computer, that is, is inputted defeated
Equipment out.It is that a kind of be shown to certain electronic document by specific transmission device is re-reflected into the aobvious of human eye on screen
Show tool.
Existing display largely includes screen, frame and dorsal shield, and display when does not have transparent effect, cannot be seen
It to the material object at the screen back side, cannot apply in many scenes, for example, if installation display screen plays extensively on the glass of refrigerator
It accuses, then display screen can block the sight of customer, and customer is made to cannot see that the commodity in refrigerator.Particularly, national subway is non-now
Chang Fada, the shield door inside subway, because of the shape for needing that passenger is facilitated to see clearly on subway platform or train in train arrival
Condition, thus shield door be it is transparent, can not have the thing of various blocking property on shield door, and subway station is a flow of the people
Very big occasion can do some education on subway shield door, announce, the publicity such as advertisement；With the research and development of perspective display screen
With production, the application field of transparent display screen or display device is more extensive.
Chinese Patent Application No. 2019201855433 disclose it is a kind of be installed on subway shield door can play advertisement it is transparent
Display screen, including display device main body, the display device main body are mounted on subway shield door, the display device main body from
It is disposed with tempered glass, transparent display screen and transparent light guide plate and back transparent baffle in outside, the tempered glass, thoroughly
Obvious display screen, transparent light guide plate and back transparent baffle are fixed by fixed frame；The front side of the light guide plate, rear side or
Surrounding is provided with for guide-lighting light-guiding lamp.The front side or rear side of the transparent light guide plate is provided with the reinforcement for reinforcement illumination
Lamp；The transparent display screen, light-guiding lamp and reinforcement lamp pass through electric signal and are connected with external power supply and master controller, the master control
Device processed is used to control display screen and plays unlatching and closing for tube advertising and light-guiding lamp and reinforcement lamp.By in subway shield door
On transparent display is installed, the display work when, whole display device can not only show content, but also can have an X-rayed and see ground
The material object at the iron shield door back side, it can be seen that thing in platform after shield door, can be carried out on subway shield door education and
The publicity of advertisement does not influence experiencing by bus for passenger again.And on subway shield door be equipped with display screen, carry out advertisement broadcasting or
Information transmitting, needs to control it.Since subway can need in each platform or each region by multiple platforms
The advertisement of broadcasting may be different；And in different times in section, flow of the people is changed greatly, in the broadcasting in order to make display device
Appearance reaches better advertising results or message transmission, avoids because blocking passenger's sight in the biggish situation of flow of the people, can not be more preferable
It propagates on ground.Therefore, it is necessary to propose a kind of Multi-line linkage control method of translucent device group of subway.
Summary of the invention
In order to solve the above technical problem, the present invention provides a kind of Multi-line linkage controls of subway semi-transparent display apparatus group
Method processed, this method take subway in the platform by obtaining transfer number and inbound number in current slot, determination
Number, so that the local chip controls that control be made to open the first semi-transparent display apparatus group for being located at side on the upper side or be located at shielding
Second semi-transparent display apparatus group of door intermediate region.When number is less than the second semi-transparent display apparatus group trigger value,
The second semi-transparent display apparatus group (i.e. the display device of partial below) is opened, when number is greater than the second semi-transparent display apparatus group
When group trigger value, then triggers and open a semi-transparent display apparatus group, thus when making that number reaches larger range in platform, platform
Interior passenger can have the experience of preferable viewing display device broadcasting content.
To achieve the above object, the technical solution adopted by the present invention is as follows:
A kind of Multi-line linkage control system of subway semi-transparent display apparatus group, the system comprises multiple semi-transparent obvious
Showing device group, multiple sub- control terminals and master control end；
The multiple semi-transparent display apparatus group, multiple sub- control terminals are respectively arranged on multiple subway stations, so that each
Subway station is at least provided with Liang Ge semi-transparent display apparatus group, a sub- control terminal；Set on the semi-transparent display apparatus of subway station
Group be set to the subway station sub- control terminal connect, the master control end respectively from set on different subway stations multiple sub- controls
End connection；
The semi-transparent display apparatus group includes several transversely arranged display device main bodys, several display devices
Main body is connect with one end of bus, and the other end of bus is connect with sub- control terminal；
The display device main body is mounted on subway shield door, and the display device main body is disposed with from outside to inside
Tempered glass, transparent display screen and transparent light guide plate and back transparent baffle, the tempered glass, transparent display screen are transparent to lead
Tabula rasa and back transparent baffle are fixed by fixed frame；
Liang Ge semi-transparent display apparatus group set on same a subway station is arranged side by side first translucent from top to bottom
Display device group and the second semi-transparent display apparatus group；
The display device main body of first semi-transparent display apparatus group is set on the upside of subway shield door；
In some embodiments, the display device main body upper end-face edge of first semi-transparent display apparatus group and screen
Cover a top edge alignment；The display device main body of second semi-transparent display apparatus group is set to the first semi-transparent display apparatus
The lower section of group, specifically, being set to the intermediate region of subway shield door.
The sub- control terminal includes reader device, local data base and local control chip；The reader device and local
Database connection, for carrying out data interaction；The local data base is connect with local control chip；The local control chip
It is connect with the first semi-transparent display apparatus group, the second semi-transparent display apparatus group；
The reader device includes subway card and reader；The reader is used to read the inbound communication of subway card, and
Send the data to local data base storage；
The local data base receives and stores reader, the local information for controlling chip, semi-transparent display apparatus group.
The local data base receives and stores the inbound communication from reader, and is identified to the inbound communication；
The local data base is stored with preset time threshold；The local data base is also stored with pre-set place
In the transfer number threshold value in different time sections；
The local control chip reads the data of local data base, counts, determines to identified inbound communication
Current inbound number；
Locally control chip is determined according to the current inbound number and transfer number threshold value when interior number of setting out in advance to make arrangements, and will
It is sent to local data base storage.
A kind of Multi-line linkage of the subway semi-transparent display apparatus group applied to Multi-line linkage control system as the aforementioned
Control method, which comprises
Step S1: the inbound communication of subway card user is sent to local data base storage, so that the local data base
By inbound communication labeled as the state that entered the station；
Step S2: local control chip receives the data information of the local data base, according in calculating current slot
Number with the inbound communication labeled as the state that entered the station, determines current inbound number；
Step S3: local control chip receives the data information of the local data base, reads local data base and deposits in advance
Storage is in N number of transfer number threshold value in different time periods；Wherein, N >=1；
Step S4: local control chip is determined according to the current inbound number and transfer number threshold value as people in next stop
Number, and the interior number that ought set out in advance to make arrangements is sent to local data base storage；
Step S5: local control chip according in set out in advance to make arrangements number determine the first semi-transparent display apparatus group of unlatching or the
Two semi-transparent display apparatus groups.
Preferably, in the step S3, local data base is to obtain and store by the following method transfer number threshold value
, comprising:
The local data base determines preset time threshold according to the history transfer number data stored, and according to
The subway working time is divided into N number of period by time threshold；
Determine history transfer number in current slot, wherein the length of the current slot is equal to the time threshold
Value；(even time threshold is 30min, that is, is assumed using 17:00 as time Fixed Initial Point, then current slot is 17:00-17:30,
It determines in the historical data, daily in period 17:00-17:30, the transfer number threshold value stood herein)；
According to the history transfer number in the current slot, take maximum history transfer number labeled as current
Transfer number threshold value in period；
Transfer number threshold value within N number of period is stored into local data base.
Preferably, in the step S4, the determination is when interior number of setting out in advance to make arrangements, comprising:
Obtain the current inbound number and transfer number threshold value in current slot；
According to the first formula, calculate when interior number of setting out in advance to make arrangements；
First formula are as follows: y=a+b；Wherein, y is described when interior number of setting out in advance to make arrangements for characterizing, and a is for when characterizing current
Between current inbound number in section, b is for characterizing transfer number threshold value in the current slot.
Preferably, described determining to open the first semi-transparent display apparatus group or second translucent in the step S5
Display device group, comprising:
The local control chip obtains local data base pre-stored second semi-transparent display apparatus group trigger value
And when interior number of setting out in advance to make arrangements；
It is compared described when setting out in advance to make arrangements interior number with the second semi-transparent display apparatus group trigger value, determines triggering first
Semi-transparent display apparatus group or the second semi-transparent display apparatus group；Manner of comparison is as follows:
If number≤second semi-transparent display apparatus group trigger value in set out in advance to make arrangements, the local control chip triggering the
Two semi-transparent display apparatus groups open；
If number the second semi-transparent display apparatus of > group trigger value in set out in advance to make arrangements, the local control chip triggering the
One semi-transparent display apparatus group opens.
Specifically, the second semi-transparent display apparatus group trigger value is the threshold value standard of a judgement, when as the interior people that sets out in advance to make arrangements
When number reaches trigger value or more, the local chip that controls sends control signal, closes the second semi-transparent display apparatus being below
Group, while opening in the first semi-transparent display apparatus group relatively above.For example, the numerical value of trigger value can be set as
The number that subway platform can accommodate under normal circumstances, when the number in subway platform is more than trigger value, then it represents that number in platform
More, the local chip that controls then triggers the unlatching of the first semi-transparent display apparatus group, carries out advertisement broadcasting etc..This set can be with
When making crowded in expediently iron platform, viewing sight is blocked due to avoiding more than the people, opens the display above shield door at this time
Device, it is ensured that the people in standing can see, realize good communication effect.
Invention further provides a kind of electronic device, including memory, processor and storage are on a memory and can be
The computer program run on processor when the processor executes described program, is realized such as present invention Multi-line linkage above-mentioned
Control method.
Invention further provides a kind of computer-readable mediums, are stored thereon with computer program, and the program is by processor
It is realized when execution such as present invention Multi-line linkage control method above-mentioned.
Beneficial effects of the present invention:
The present invention provides a kind of Multi-line linkage control method of subway semi-transparent display apparatus group, and this method passes through acquisition
Transfer number and inbound number in current slot determine the number that subway is taken in the platform, to make local control
Chip controls open the first semi-transparent display apparatus group for being located at side on the upper side or positioned at the second semi-transparent of shield door intermediate region
Obvious showing device group.When number is less than the second semi-transparent display apparatus group trigger value, the second translucent display dress is opened
Group (i.e. the display device of partial below) is set, when number is greater than the second semi-transparent display apparatus group trigger value, then triggering is opened
A semi-transparent display apparatus group is opened, so that the passenger in platform can have preferably when making that number reaches larger range in platform
Watch the experience of display device broadcasting content.A kind of Multi-line linkage control of subway semi-transparent display apparatus group provided by the invention
System processed, by the way that multiple sub- control terminals are arranged, realization controls semi-transparent display apparatus group in platform；When needs pair
When all platforms play same content, play instruction can be issued by master control end to each sub- control terminal, to realize multi-thread
Dynamic control, is able to achieve single control or one-to-many control.
Detailed description of the invention
Fig. 1 is the Multi-line linkage control system schematic diagram of the embodiment of the present invention；
Fig. 2 is the instation circuit schematic diagram of the Multi-line linkage control system of the embodiment of the present invention；
Fig. 3 is the flow diagram of the Multi-line linkage control method of the embodiment of the present invention.
Specific embodiment
Specific embodiments of the present invention will be further explained with reference to the accompanying drawing.
As shown in Figures 1 to 3, in the present embodiment, by taking No. three lines of Guangzhou Underground as an example；A kind of subway semi-transparent display apparatus
The Multi-line linkage control system of group, the system comprises multiple semi-transparent display apparatus groups, 16 sub- control terminals and total
Control terminal；The master control end is connected from the multiple sub- control terminals for being set to different subway stations respectively.
In the present embodiment, which is No. three line Multi-line linkage control systems of Guangzhou Underground, (assuming that in different embodiments
In, if the system is Guangzhou Underground Multi-line linkage control system by taking Guangzhou Underground as an example, sub- control terminal is Guangzhou Underground one
Number line, No. two lines, No. three lines etc., and Guangzhou Underground No.1 line also can be the master control end of each platform in Subway Line 1)；For convenience
Understand, the present embodiment is illustrated using No. three lines of Guangzhou Underground.
The multiple semi-transparent display apparatus group, 16 sub- control terminals are respectively arranged on 16 subway stations, so that
Each subway station is set there are two semi-transparent display apparatus group, a sub- control terminal；
As shown in Fig. 1~2, by taking the station of sport West Road as an example, set on two semi-transparent display apparatus of sport West Road subway station
Group connect with the sub- control terminal for being set to sport West Road subway station respectively.
The semi-transparent display apparatus group includes several transversely arranged display device main bodys, several display devices
Main body is connect with one end of bus, and the other end of bus is connect with sub- control terminal；
The display device main body is mounted on subway shield door, and the display device main body is disposed with from outside to inside
Tempered glass, transparent display screen and transparent light guide plate and back transparent baffle, the tempered glass, transparent display screen are transparent to lead
Tabula rasa and back transparent baffle are fixed by fixed frame；
Liang Ge semi-transparent display apparatus group set on sport West Road subway station is from top to bottom arranged side by side the first half
Transparent display group and the second semi-transparent display apparatus group；
The display device main body of first semi-transparent display apparatus group is set on the upside of subway shield door；Described the second half
The display device main body of transparent display group is set to the intermediate region of subway shield door.
The sub- control terminal includes reader device, local data base and local control chip；The reader device and local
Database connection, for carrying out data interaction；The local data base is connect with local control chip；The local control chip
It is connect with the first semi-transparent display apparatus group, the second semi-transparent display apparatus group；
The reader device includes subway card and reader；The reader is used to read the inbound communication of subway card, and
Send the data to local data base storage；The local data base receives and stores reader, locally controls chip, is semi-transparent
The information of obvious showing device group.
The local data base receives and stores the inbound communication from reader, and is identified to the inbound communication；
The local data base is stored with preset time threshold；The local data base is also stored with pre-set place
In the transfer number threshold value in different time sections；
The local control chip reads the data of local data base, counts, determines to identified inbound communication
Current inbound number；
Locally control chip is determined according to the current inbound number and transfer number threshold value when interior number of setting out in advance to make arrangements, and will
It is sent to local data base storage.
As shown in figure 3, a kind of subway semi-transparent display apparatus group applied to such as above-mentioned Multi-line linkage control system
Multi-line linkage control method, which comprises
Step S1: the inbound communication (i.e. subway user swipes the card at sport West Road station into the information of lock) of subway card user is passed
It send to local data base and stores, so that the local data base is by inbound communication labeled as the state that entered the station；
Step S2: local control chip receives the data information of the local data base, according in calculating current slot
(i.e. local control chip calculates in current slot at sport West Road number with the inbound communication labeled as the state that entered the station
The number of inbound), determine current inbound number；
Step S3: local control chip receives the data information of the local data base, reads local data base and deposits in advance
Storage is in N number of transfer number threshold value in different time periods；Wherein, N >=1；
Step S4: local control chip is determined according to the current inbound number and transfer number threshold value as people in next stop
Number, and the interior number that ought set out in advance to make arrangements is sent to local data base storage；
Step S5: local control chip according in set out in advance to make arrangements number determine the first semi-transparent display apparatus group of unlatching or the
Two semi-transparent display apparatus groups.
In the step S3, local data base (i.e. sport West Road station database) is to obtain and store by the following method
Transfer number threshold value, comprising:
The local data base determines preset time threshold according to the history transfer number data stored, and according to
The subway working time is divided into N number of period by time threshold；
Determine history transfer number in current slot, wherein the length of the current slot is equal to the time threshold
Value；(even time threshold is 30min, that is, is assumed using 17:00 as time Fixed Initial Point, then current slot is 17:00-17:30,
It determines in the historical data, daily in period 17:00-17:30, the transfer number threshold value stood herein)；
According to the history transfer number in the current slot, take maximum history transfer number labeled as current
Transfer number threshold value in period；
Transfer number threshold value within N number of period is stored into local data base.
In the step S4, the determination is when interior number of setting out in advance to make arrangements, comprising:
Obtain the current inbound number and transfer number threshold value in current slot；
According to the first formula, calculate when interior number of setting out in advance to make arrangements；
First formula are as follows: y=a+b；Wherein, y is described when interior number of setting out in advance to make arrangements for characterizing, and a is for when characterizing current
Between current inbound number in section, b is for characterizing transfer number threshold value in the current slot.
In the step S5, the first semi-transparent display apparatus group of the determining unlatching or the second semi-transparent display apparatus
Group, comprising:
The local control chip obtains local data base pre-stored second semi-transparent display apparatus group trigger value
And when interior number of setting out in advance to make arrangements；
It is compared described when setting out in advance to make arrangements interior number with the second semi-transparent display apparatus group trigger value, determines triggering first
Semi-transparent display apparatus group or the second semi-transparent display apparatus group；Manner of comparison is as follows:
If number≤second semi-transparent display apparatus group trigger value in set out in advance to make arrangements, the local control chip triggering the
Two semi-transparent display apparatus groups open；
If number the second semi-transparent display apparatus of > group trigger value in set out in advance to make arrangements, the local control chip triggering the
One semi-transparent display apparatus group opens.
Specifically, the second semi-transparent display apparatus group trigger value is the threshold value standard of a judgement, when as the interior people that sets out in advance to make arrangements
When number reaches trigger value or more, the local chip that controls sends control signal, closes the second semi-transparent display apparatus being below
Group, while opening in the first semi-transparent display apparatus group relatively above.
According to the disclosure and teachings of the above specification, those skilled in the art in the invention can also be to above-mentioned embodiment party
Formula is changed and is modified.Therefore, the invention is not limited to the specific embodiments disclosed and described above, to the one of invention
A little modifications and changes should also be as falling into the scope of the claims of the present invention.In addition, although being used in this specification
Some specific terms, these terms are merely for convenience of description, does not limit the present invention in any way.
Claims (10)
1. a kind of Multi-line linkage control method of subway semi-transparent display apparatus group, is applied in subway station, the subway station
Semi-transparent display apparatus group is installed on interior fixed mask door, which is characterized in that the semi-transparent display apparatus group packet
The the first semi-transparent display apparatus group and the second semi-transparent display apparatus group of setting side by side up and down are included, described first is translucent
Display device group is mounted on the top of second semi-transparent display apparatus group, this method comprises:
Step S1: the inbound communication of subway card user is sent to local data base storage, so that the local data base will enter
Information flag of standing is the state that entered the station；
Step S2: local control chip receives the data information of the local data base, has according to calculating in current slot
Labeled as the number of the inbound communication for the state of having entered the station, current inbound number is determined；
Step S3: local control chip receives the data information of the local data base, and it is pre-stored to read local data base
In N number of transfer number threshold value in different time periods；Wherein, N >=1；
Step S4: locally control chip is determined according to the current inbound number and transfer number threshold value when interior number of setting out in advance to make arrangements, and
And number is sent to local data base storage in ought setting out in advance to make arrangements；
Step S5: local control chip according in set out in advance to make arrangements number determine the first semi-transparent display apparatus group of unlatching or the second half
Transparent display group；
In the step S5, the first semi-transparent display apparatus group of the determining unlatching or the second semi-transparent display apparatus group
Group, comprising:
The local control chip obtains local data base pre-stored second semi-transparent display apparatus group's trigger value and works as
Number in setting out in advance to make arrangements；
It is compared described when setting out in advance to make arrangements interior number with the second semi-transparent display apparatus group trigger value, determines that triggering first is semi-transparent
Obvious showing device group or the second semi-transparent display apparatus group；
Its manner of comparison are as follows:
If number≤second semi-transparent display apparatus group trigger value in set out in advance to make arrangements, the local control chip triggering the second half
Transparent display group opens；
If number the second semi-transparent display apparatus of > group trigger value in set out in advance to make arrangements, the local control chip triggering the first half
Transparent display group opens.
2. Multi-line linkage control method according to claim 1, which is characterized in that in the step S3, local data
Library is to obtain and store by the following method transfer number threshold value, comprising:
The local data base determines preset time threshold, and according to the time according to the history transfer number data stored
The subway working time is divided into N number of period by threshold value；
Determine history transfer number in current slot, wherein the length of the current slot is equal to the time threshold；
According to the history transfer number in the current slot, take maximum history transfer number labeled as current time
Transfer number threshold value in section；
Transfer number threshold value within N number of period is stored into local data base.
3. Multi-line linkage control method according to claim 1, which is characterized in that in the step S4, the determination
When interior number of setting out in advance to make arrangements, comprising:
Obtain the current inbound number and transfer number threshold value in current slot；
According to the first formula, calculate when interior number of setting out in advance to make arrangements；
First formula are as follows: y=a+b；Wherein, y is described when interior number of setting out in advance to make arrangements for characterizing, and a is for characterizing current slot
Interior current inbound number, b is for characterizing transfer number threshold value in the current slot.
4. a kind of Multi-line linkage of application such as any one of claims 1 to 3 subway semi-transparent display apparatus group of the method
Control system, which is characterized in that the system comprises multiple semi-transparent display apparatus groups, multiple sub- control terminals and master control
End；
The multiple semi-transparent display apparatus group, multiple sub- control terminals are respectively arranged on multiple subway stations, so that each subway
It stands at least provided with Liang Ge semi-transparent display apparatus group, a sub- control terminal；Set on the semi-transparent display apparatus group of subway station
It is connect with the sub- control terminal for being set to the subway station, the master control end connects from the multiple sub- control terminals for being set to different subway stations respectively
It connects.
5. Multi-line linkage control system according to claim 4, which is characterized in that the semi-transparent display apparatus group packet
Include several transversely arranged display device main bodys, several display device main bodys are connect with one end of bus, bus it is another
One end is connect with sub- control terminal；
The display device main body is mounted on subway shield door, and the display device main body is disposed with tempering from outside to inside
Glass, transparent display screen and transparent light guide plate and back transparent baffle, the tempered glass, transparent display screen, transparent light guide plate
It is fixed with back transparent baffle by fixed frame.
6. Multi-line linkage control system according to claim 4, which is characterized in that two set on same a subway station are semi-transparent
Obvious showing device group is the first semi-transparent display apparatus group and the second semi-transparent display apparatus arranged side by side from top to bottom
Group；
The display device main body of first semi-transparent display apparatus group is set on the upside of subway shield door.
7. Multi-line linkage control system according to claim 6, which is characterized in that the first semi-transparent display apparatus group
The display device main body upper end-face edge of group is aligned with shield door top edge；Second semi-transparent display apparatus group is set to subway
The intermediate region of shield door.
8. Multi-line linkage control system according to claim 4, which is characterized in that the sub- control terminal includes card reading dress
It sets, local data base and local control chip；
The reader device is connect with local data base, for carrying out data interaction；
The local data base is connect with local control chip；
The local control chip is connect with the first semi-transparent display apparatus group, the second semi-transparent display apparatus group.
9. Multi-line linkage control system according to claim 8, which is characterized in that the reader device include subway card and
Reader；The reader is used to read the inbound communication of subway card, and sends the data to local data base storage；
The local data base receives and stores reader, the local information for controlling chip, semi-transparent display apparatus group.
10. Multi-line linkage control system according to claim 9, which is characterized in that the local data base is received and deposited
The inbound communication from reader is stored up, and the inbound communication is identified；
The local data base is stored with preset time threshold；The local data base is also stored with pre-set in not
With the transfer number threshold value in the period；
The local control chip reads the data of local data base, counts to identified inbound communication, determines current
Inbound number.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910154049.5A CN109947381B (en) | 2019-02-28 | 2019-02-28 | Multi-line linkage control method and control system for subway semitransparent display device group |
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| CN201910154049.5A CN109947381B (en) | 2019-02-28 | 2019-02-28 | Multi-line linkage control method and control system for subway semitransparent display device group |
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| CN109947381B CN109947381B (en) | 2023-08-25 |
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| CN109947381B (en) | 2023-08-25 |
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