CN204332323U - A kind of electronic stop plate - Google Patents
A kind of electronic stop plate Download PDFInfo
- Publication number
- CN204332323U CN204332323U CN201420747842.9U CN201420747842U CN204332323U CN 204332323 U CN204332323 U CN 204332323U CN 201420747842 U CN201420747842 U CN 201420747842U CN 204332323 U CN204332323 U CN 204332323U
- Authority
- CN
- China
- Prior art keywords
- stop plate
- display screen
- electronic stop
- control module
- brightness
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The utility model relates to a kind of electronic stop plate, especially relates to a kind of electronic stop plate that can carry out self-adaptation adjusting backlight luminance according to external environment.Technical problem to be solved in the utility model overcomes electronic stop plate in prior art to expend the energy and the shortcoming of poor visual effect, a kind of electronic stop plate is provided, comprise information display screen, described information display screen adopts back lighting, also comprise optical inductor, A/D modular converter, central processing unit, graphic process unit and brightness control module, described A/D modular converter is connected with central processing unit and optical inductor respectively, graphic process unit is connected with central processing unit, brightness control module and information display screen respectively, and brightness control module is connected with information display screen again.The beneficial effects of the utility model are: structure is simple, practical, can realize automatically controlling the induction of the brightness of electronic stop plate, improve human eye comfort level, reduce energy consumption, economize energy.The utility model is applicable to existing electronic stop plate.
Description
Technical field
The utility model relates to a kind of electronic stop plate, especially relates to a kind of electronic stop plate that can carry out self-adaptation adjusting backlight luminance according to external environment.
Background technology
Conveniently numerous citizen, the display screen of the electronic stop plate at station is all generally 24 hours light yellows so that when night or light bad, everybody also can see the information that station board shows clearly.But for a long time with high brightness display information, cause the significant wastage of the energy.And when carrying out display information with same brightness, when the strong or display screen of sunlight has a reflective phenomenon by day, likely citizen do not see the information shown by Chu; And dusk or light source darker in, user likely experiences dazzling, eyes fatiguability, and makes display screen send too much heat, affects its serviceable life.Therefore a kind of electronic stop plate that can carry out self-adaptation adjusting backlight luminance according to the brightness of external environment is needed badly.
Utility model content
Technical problem to be solved in the utility model overcomes electronic stop plate in prior art to expend the energy and the shortcoming of poor visual effect, a kind of electronic stop plate is provided, this electronic stop plate can carry out self-adaptation adjusting backlight luminance according to the brightness of external environment, and effective economize energy, increases the service life.
The utility model solves the technical scheme that its technical matters adopts: a kind of electronic stop plate, comprise display screen, described display screen adopts back lighting, also comprise optical inductor, A/D modular converter, central processing unit, graphic process unit and brightness control module, described A/D modular converter is connected with central processing unit and optical inductor respectively, graphic process unit is connected with central processing unit, brightness control module and display screen respectively, and brightness control module is connected with display screen again.
Concrete, also comprise brilliance control button, described brilliance control button is connected with brightness control module.
Further, the brightness of described display screen is more than or equal to 1000cd/m
2.
Concrete, described display screen comprises information display screen and ad display screen.
Further, environmental monitoring probe is also comprised.
The beneficial effects of the utility model are: structure is simple, practical, can realize automatically controlling the induction of the brightness of electronic stop plate, improve human eye comfort level, and reduce screen heating, economize energy, increases the service life.The utility model is applicable to existing electronic stop plate.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further illustrated.
As shown in Figure 1, a kind of electronic stop plate of the present utility model, comprise display screen, described display screen adopts back lighting, also comprise optical inductor, A/D modular converter, central processing unit, graphic process unit and brightness control module, described A/D modular converter is connected with central processing unit and optical inductor respectively, and graphic process unit is connected with central processing unit, brightness control module and display screen respectively, and brightness control module is connected with display screen again.
Optical inductor is made up of two assemblies and light projector and light-receiving device, light projector is utilized to be focused on by lens by light, be transferred in the lens of light-receiving device, then received by reception inductor and light signal is converted to electric signal, this electric signal can make various different switch and control action further, and namely its ultimate principle has been used various Automated condtrol to the signal that the light between light projector light-receiving device does shelter acquisition.
Graphic process unit (Graphics Processing Unit, GPU), also known as display core, vision processor or display chip, be a kind of specially at the microprocessor of PC, workstation, game machine and some mobile devices (as panel computer, smart mobile phone etc.) epigraph operation.Its purposes required display information is carried out conversion to drive, and provide line scan signals to display, controls the correct display of display.
Namely brightness control module is the unit regulating brightness of display screen, adopts existing brightness control module can realize the function regulated brightness.A/D modular converter carries out the conversion of simulating signal and digital signal, adopts existing A/D modular converter can realize its function.
The principle of work of above-mentioned electronic stop plate is: according to the brightness conditions of surrounding outer environment, and optical inductor exports the DC level of certain value, and this DC level signal converts digital signal to by A/D modular converter, and delivers to central processing unit.On the one hand by central processing unit according to program setting, export the PWM square-wave signal of specific period and dutycycle, after filtering with shaping after, become certain DC level, as the brightness control signal of brightness control module, changed the electric current of display backlight again by brightness control module, thus change the brightness size of display screen; Central processing unit is according to the setting of program on the other hand, the brightness register value of adjustment graphic process unit, thus changes the size outputting to the data luminance of display screen.From image processor output adaptive brightness data signal and adaptive brightness control signal to brightness control module, thus final realization controls automatically to the induction of the brightness of electronic stop plate.
In order to improve human eye comfort level, the brightness of described display screen is more than or equal to 1000cd/m
2.Display screen specifically comprises information display screen and ad display screen, and described information display screen can show the information such as vehicle pull-in, leaving from station or distance.
For the ease of strengthening manual control, make citizen can environmentally manual adjustment brightness voluntarily, as existing manual key on television can degree of lightening just like that, also be provided with manual brilliance control button changing on electronic stop plate, described brilliance control button is connected with brightness control module, can increase or reduce the brightness of display screen.
For the ease of monitoring information such as the temperature near website, humidity, water loggings, record ambient conditions, this electronic stop plate also comprises environmental monitoring probe.
Claims (5)
1. an electronic stop plate, comprise display screen, described display screen adopts back lighting, it is characterized in that, also comprise optical inductor, A/D modular converter, central processing unit, graphic process unit and brightness control module, described A/D modular converter is connected with central processing unit and optical inductor respectively, and graphic process unit is connected with central processing unit, brightness control module and display screen respectively, and brightness control module is connected with display screen again.
2. a kind of electronic stop plate as claimed in claim 1, is characterized in that, also comprises brilliance control button, and described brilliance control button is connected with brightness control module.
3. a kind of electronic stop plate as claimed in claim 1 or 2, is characterized in that, the brightness of described display screen is more than or equal to 1000cd/m
2.
4. a kind of electronic stop plate as claimed in claim 3, is characterized in that, described display screen comprises information display screen and ad display screen.
5. want a kind of electronic stop plate in 1 or 2 described in any one according to right, it is characterized in that, also comprise environmental monitoring probe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420747842.9U CN204332323U (en) | 2014-12-03 | 2014-12-03 | A kind of electronic stop plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420747842.9U CN204332323U (en) | 2014-12-03 | 2014-12-03 | A kind of electronic stop plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204332323U true CN204332323U (en) | 2015-05-13 |
Family
ID=53168652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420747842.9U Expired - Fee Related CN204332323U (en) | 2014-12-03 | 2014-12-03 | A kind of electronic stop plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204332323U (en) |
-
2014
- 2014-12-03 CN CN201420747842.9U patent/CN204332323U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150513 Termination date: 20171203 |