CN201429944Y - Display for railway vehicles - Google Patents
Display for railway vehicles Download PDFInfo
- Publication number
- CN201429944Y CN201429944Y CN2009200146987U CN200920014698U CN201429944Y CN 201429944 Y CN201429944 Y CN 201429944Y CN 2009200146987 U CN2009200146987 U CN 2009200146987U CN 200920014698 U CN200920014698 U CN 200920014698U CN 201429944 Y CN201429944 Y CN 201429944Y
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- signal
- display
- mainboard
- transmission
- motherboard
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Abstract
The utility model relates to a display for railway vehicles, which belongs to the technical field of displays, and comprises an LCD screen, a motherboard, a power board, and a high-voltage section, wherein the input end of the motherboard is connected with a signal conversion board, and the signal conversion board carries out the gain compensation and drive for the attenuated signals during transmission; and the output end of the signal conversion board is connected with the motherboard, and the signal conversion board converts differential signals into single-ended signals to provide drive for the motherboard. The utility model has the advantages that the display is suitable for high-bandwidth and long-distance transmission; and being different from the traditional video signal display, the product transmits and receives in every subway through differential signals so as to greatly improve effective transmission bandwidth, accordingly, the display effect is especially clear and smooth, and smaller characters can be displayed.
Description
Technical field
The utility model belongs to the display technology field, relates to a kind of used for rail vehicle display.
Background technology
In today of electronic science and technology high speed development, we have stepped into the information age, and various forms of media are come thick and fast.Because the dullness brought to the passenger of overlong time, dull, market proposes new requirement again to the passenger traffic instrument, has both enriched media information, makes the loneliness of journey become enjoyment on the road.
The widescreen vehicle LCD is a kind of more novel media terminal equipment.What traditional vehicle-mounted product mainly adopted is that the VIDEO signal receives, because the restriction of its physical transfer bandwidth, image effect is very poor, can only be used for playing low line and count video information, can't realize the output of high definition picture, can't realize that more Word message shows in detail, therefore become the bottleneck of such product promotion.
The utility model content
In order to solve for above problem, the utility model provides a kind of used for rail vehicle display, can be used for subway, train, steamer and public place as advertising media.
The technical solution adopted in the utility model is: comprise liquid crystal display, mainboard, power panel, high-pressure section, the input end of mainboard is connected with signal transducer, the input end of signal transducer receives the analog difference signal of transmission in the rail vehicle, the signal that transmission course has been decayed carries out gain compensation and driving, the output terminal of signal transducer is connected with mainboard, differential signal is converted to single-ended signal provides driving for mainboard.
Described signal transducer adopts chip AD8128, and the input end of its chips AD8128 receives the analog difference signal of transmission in the rail vehicle, and the output terminal of chip AD8128 is connected to mainboard.
The output terminal of described chip AD8128 connects the input end of mainboard by repeating resistance.
The input end of mainboard is connected with signal transducer, and signal transducer mainly plays the adaptive and standard signal output function of bus.Input end receives the analog difference signal of transmission in the rail vehicle, and the signal that its transmission course has been decayed carries out gain compensation and driving, after the innernal CPU overall treatment, forms the standard VGA signal and provides driving for mainboard.Described signal transducer acp chip AD8128.
The beneficial effects of the utility model: be fit to high bandwidth, long Distance Transmission.Be different from traditional video (VIDEO) Signal Monitor, this product transmits by differential signal in every row subway and receives, and has improved effective transmission bandwidth greatly, thereby makes especially clear and smooth of display effect, can show less Word message.
This product has incorporated the solution of high bandwidth transmission technology, the standard VGA signal that computing machine produces can be modulated, to separate R G the B signal modulate, be implemented in the common netting twine and transmit with the physical form of multichannel difference, compare with video standard signal and to have stronger anti-common mode interference ability, solved the signal transmission difficulty of the high bandwidth of longer distance on the train, in every main frame, transmission signals is carried out demodulation, recovering signal effectively raises image sharpness.
Description of drawings
Fig. 1 structured flowchart of the present utility model;
Fig. 2 signal transducer circuit diagram of the present utility model.
Embodiment
In conjunction with the accompanying drawings the utility model is described further:
As shown in Figure 1, structured flowchart of the present utility model, the explanation of complete machine theory of constitution: the complete machine electric part is made up of liquid crystal display, mainboard, power panel, high-pressure section, signal transducer five major parts.
1, liquid crystal display: be the complete machine imaging terminal, under the support of other circuit, demonstrate video pictures.
2, mainboard: be the servo circuit of processing of VGA signal central authorities and liquid crystal display, major function is regulated video parameter (as brightness, contrast, white balance etc.) for coordinating complete machine work, the VGA signal being carried out the LVDS signal that treatment conversion becomes to drive liquid crystal display.
3, power panel: the importation is the 110VDC power supply of train standard, is converted to 12VDC (1.8A) and 5VDC (1.6A) two-way DC voltage.Normal input service electric current is about 300mA, 32W.
4, high-pressure section: under mainboard control, power by inverter output 650V simple alternating current.The display backlight power supply is provided.
5, signal transducer: this part is the featured function of complete machine, can receive the analog difference signal that is applicable to long Distance Transmission, the treated standard separation simulation vision signal (VGA) that can be exchanged into.
The circuit diagram of Fig. 2 signal transducer of the present utility model.The analog difference signal of transmission is inserted by connector J1 in the rail vehicle, be connected to U4 (as schematic diagram AD8128) input port, behind the analog difference signal entering signal change-over panel of transmission, the signal that its transmission course has been decayed carries out gain compensation and driving in the car body, and form form be R G B Hs Vs standard VGA signal, output terminal (the R0 of AD8128, G0 is B0) by resistance (R22, R23, R24) and connector J2 output to mainboard, can directly provide driving for mainboard.
Claims (3)
1, a kind of used for rail vehicle display, comprise liquid crystal display, mainboard, power panel, high-pressure section, the input end that it is characterized in that mainboard is connected with signal transducer, the input end of signal transducer receives the analog difference signal of transmission in the rail vehicle, the signal that transmission course has been decayed carries out gain compensation and driving, the output terminal of signal transducer is connected with mainboard, differential signal is converted to single-ended signal provides driving for mainboard.
2, according to the described used for rail vehicle display of claim 1, it is characterized in that described signal transducer adopts chip AD8128, the input end of its chips AD8128 receives the analog difference signal of transmission in the rail vehicle, and the output terminal of chip AD8128 is connected to mainboard.
3,, it is characterized in that the output terminal of described chip AD8128 connects the input end of mainboard by repeating resistance according to the described used for rail vehicle display of claim 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200146987U CN201429944Y (en) | 2009-06-19 | 2009-06-19 | Display for railway vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200146987U CN201429944Y (en) | 2009-06-19 | 2009-06-19 | Display for railway vehicles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201429944Y true CN201429944Y (en) | 2010-03-24 |
Family
ID=42033684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200146987U Expired - Lifetime CN201429944Y (en) | 2009-06-19 | 2009-06-19 | Display for railway vehicles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201429944Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102074217A (en) * | 2011-01-27 | 2011-05-25 | 浙江宇松科技有限公司 | Extending method of image view angle of liquid crystal display (LCD) and liquid crystal display (LCD) thereof |
| CN102280086A (en) * | 2011-08-22 | 2011-12-14 | 青岛四方车辆研究所有限公司 | Railway vehicle display |
| WO2014205992A1 (en) * | 2013-06-28 | 2014-12-31 | 京东方科技集团股份有限公司 | Multi-terminal synchronous display method, display apparatus, and display apparatus cascading system |
| CN105100643A (en) * | 2014-08-06 | 2015-11-25 | 天津高清科技有限公司 | Video transmission and playing structure with multiple terminals and transmission method |
-
2009
- 2009-06-19 CN CN2009200146987U patent/CN201429944Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102074217A (en) * | 2011-01-27 | 2011-05-25 | 浙江宇松科技有限公司 | Extending method of image view angle of liquid crystal display (LCD) and liquid crystal display (LCD) thereof |
| CN102280086A (en) * | 2011-08-22 | 2011-12-14 | 青岛四方车辆研究所有限公司 | Railway vehicle display |
| WO2014205992A1 (en) * | 2013-06-28 | 2014-12-31 | 京东方科技集团股份有限公司 | Multi-terminal synchronous display method, display apparatus, and display apparatus cascading system |
| US9766851B2 (en) | 2013-06-28 | 2017-09-19 | Boe Technology Group Co., Ltd. | Multi-terminal synchronous display method, display apparatus and display apparatus cascading system |
| CN105100643A (en) * | 2014-08-06 | 2015-11-25 | 天津高清科技有限公司 | Video transmission and playing structure with multiple terminals and transmission method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Free format text: FORMER OWNER: SHENZHEN BIGTIDE TECHNOLOGY CO., LTD. |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20100701 Address after: Yaoyang road 18-6B Shenbei New Area Huishan Economic Development Zone of Shenyang City, Liaoning province 110164 Patentee after: Shenyang Torch-Bigtide Digital Technology Co., Ltd. Address before: Yaoyang road 18-6B Shenbei New Area Huishan Economic Development Zone of Shenyang City, Liaoning province 110164 Co-patentee before: Shenzhen Juchao Technology Co., Ltd. Patentee before: Shenyang Torch-Bigtide Digital Technology Co., Ltd. |
|
| ASS | Succession or assignment of patent right |
Owner name: SHENZHEN JUCHAO TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: SHENYANG TORCH-BIGTIDE DIGITAL TECHNOLOGY CO., LTD. Effective date: 20120426 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 110164 SHENYANG, LIAONING PROVINCE TO: 518000 SHENZHEN, GUANGDONG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20120426 Address after: 2, Shenzhen, Guangdong, Nanshan District Ping Shan Road, Tai Ping Industrial Park, 10 to 5 floor, 518000 floor Patentee after: Shenzhen Juchao Technology Co., Ltd. Address before: Yaoyang road 18-6B Shenbei New Area Huishan Economic Development Zone of Shenyang City, Liaoning province 110164 Patentee before: Shenyang Torch-Bigtide Digital Technology Co., Ltd. |
|
| C56 | Change in the name or address of the patentee |
Owner name: SHENZHEN BIGTIDE TECHNOLOGY CO., LTD. Free format text: FORMER NAME: SHENZHEN JUCHAO TECHNOLOGY CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 518000 Guangdong Province, Shenzhen New District of Longhua City, Huarong Road No. 397 Fu Long Industrial Zone 8 Patentee after: SHENZHEN BIGTIDE TECHNOLOGY CO., LTD. Address before: 2, Shenzhen, Guangdong, Nanshan District Ping Shan Road, Tai Ping Industrial Park, 10 to 5 floor, 518000 floor Patentee before: Shenzhen Juchao Technology Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100324 |
|
| CX01 | Expiry of patent term |