1. More than 64 logical partitions can be set at will, which can be played and displayed independently. The first area can play different data simultaneously. You can set the global page and data page playback window.

2. Support RS232/RS485 and TCP/IP communication, and can be equipped with optical fiber transceiver and wireless GPRS transmission module, with fast and stable transmission speed.

3. The system software can be upgraded online remotely, and the setup software and playback software can be used independently.

4. Using the image compression algorithm, the text can be automatically intercepted and edited line by line.

5. The self-contained operating system has a standard file management system, which is environmentally safe and reliable and will not be invaded by viruses.

6. It has secondary development. According to the different needs of users, you can add application functions at will, provide different solutions and interface protocols, and realize real-time data functions, that is, instant filling functions (such as bank funds, exchange rates, station information, etc.). ).

7. Support mass storage. CF card can be selected according to different requirements of users, with a maximum of1g.

8, CPU processing speed is fast, can accommodate a variety of different manufacturers of display boards, one card for multiple purposes, multi-person management.

9. The stunt patterns are rich, and each picture can do stunts independently, with complete patterns. Powerful, it can support forward countdown, safe day, world clock, duty watch, movie screen and other unique analog clock functions.

The price of synchronous work and energy

It supports 100 hardware scanning interfaces and is compatible with almost all display scanning interfaces in China.

Label: led asynchronous control card

Creation time of Led product display: 2011Wednesday, April 27th at 3: 29 pm | Category: | Words: 3897 | Send to my Qzone | Save as ... | Print.

Technical parameters:

1, the internal full-color LED electronic display screen is also called tricolor, that is, the smallest display unit is composed of red, green and blue, which conforms to the working principle of the computer. It can truly restore 256 gray levels of red, green and blue to form 16.7M million colors, and can display colorful dynamic images in real time. There is a one-to-one correspondence between the pixels on the screen and the pixels on the computer monitor. Panchromatic means that there are three colors (red, green and blue) in a pixel. This type of LED display screen can display all kinds of colors, and its principle and function are the same as those of computer display screen, and it can play all kinds of public information, advertisements, animations, words, pictures, VCD, TV, movies and so on. Video signals can be played. Video screen has good openness, is not limited by operating system and software, and can reflect the display of computer monitor in real time.

Scope of application:

Large stadiums, train waiting rooms, live TV programs, exhibition venues, performing arts centers, entertainment venues, large-scale cultural evenings, concerts, enterprises and institutions.

Indoor LED display system integrates photoelectric technology, communication technology, computer control technology and network technology, and realizes information dissemination and exchange through fully functional software, thus contributing to the modernization of information management.

model

p6

p7.62

P 10

P 12

Pixel composition

1R 1G 1B

1R 1G 1B

1R 1G 1B

1R 1G 1B

Pixel center distance

6mm

7.62 mm

10mm

12mm

Pixels per inch

27777 points/㎡

17220 points/㎡.

10000 points/㎡

6944 points/㎡

Maximum power consumption

400W/㎡

350 watts/㎡.

300 watts/㎡.

300 watts/㎡.

grey level

Grade 256/16M color

Grade 256/16M color

Grade 256/16M color

Grade 256/16M color

heavyweight

40 kg/㎡

30 kg/㎡

25 kg/㎡

25 kg

2. Panchromatic color is also called tricolor, that is, the smallest display unit composed of three primary colors of red, green and blue, which is consistent with the working principle of the computer. It can truly restore 256 gray levels of red, green and blue to form 16.7M million colors, and can display colorful dynamic images in real time. The picture is clear, the color is uniform, and the three-dimensional layering is strong. You can play pictures, words, radio, television, video, VCD and various three-dimensional animations at will. It can output and display synchronously with computer VGA display screen in real time, and is suitable for playing media information in real time when connecting with various Internet. The luminous brightness is strong, and when the sun shines directly on the screen surface within the visible distance, the display content is clearly visible. All-weather work, completely adapt to all kinds of harsh outdoor environment, and have strong overall performance of anticorrosion, waterproof, moisture-proof, lightning protection and earthquake resistance. Modular structure, which can be combined at will and displayed all day. Rich colors: it is composed of three primary colors (red, green and blue) display unit boxes, and 256 shades of red, green and blue constitute 16, 777 and 2 16 colors, so that the LED display screen displays dynamic images with rich colors, high saturation, high resolution and high display frequency;

▲ Functions and features

◆ High brightness: With ultra-high brightness LED, you can still see clearly from a distance under strong sunlight;

◆ Good effect: With nonlinear correction technology, the image is clearer and more layered;

Strong reliability: adopting static scanning technology and modular design technology, the reliability and stability are higher;

◆ Diversification of display modes: support multiple display modes;

Convenient operation: Universal video playback software is adopted, which makes the operation of the system very convenient.

▲ Scope of application: government square, leisure square, large entertainment square, bustling commercial center, advertising information bulletin board, commercial street, railway station, etc.

Luminous point specification

Ph10mm

Ph12mm

Ph 16 mm

PH20mm mm

PH25mm mm

pixels per inch

10000 points/square meter

6944 points/square meter

3906 points/square meter

2500 points/square meter

1600 points/m2

Maximum brightness value

7000cd/m2

7000cd/m2

7000cd/m2

7000cd/m2

7000cd/m2

Average power consumption

700 Watts/m2

650 Watts/m2

600 Watts/m2

500 Watts/m2

400W/m2

heavyweight

60 kg/m2

60 kg/m2

60 kg/m2

60 kg/m2

60 kg/m2

grey scale

1024 gray scale

Power supply demand

The input voltage is 220VAC 50Hz, three-phase five-wire system.

Frame refresh rate

Greater than 120 frame/sec

Control formula

Computer networking control, screen pixels correspond to computer monitors point by point.

Communication distance separation

Twisted pair ≤ 100m (no relay), multimode fiber ≤ 1200m.

3. This kind of LED display screen is mainly used to display characters and graphics, and generally there is no gray control. It inputs information by communicating with the computer. Compared with strip screen, monochrome screen has the advantages of rich fonts and graphics. Compared with video screen, the biggest advantage of graphic screen is that one computer can control multiple screens and display them offline. standard

Φ3.0

Φ3.75

Φ5

Single point diameter

3.0 mm

3.75 mm

5.0 mm

Single point spacing

4.0 mm

4.76 mm

7.62 mm

Pixels per inch

62,500 points/m2.

44 100 integral/m2

17200 points/㎡.

Average power consumption

200 watts/㎡.

180w/㎡.

150W/㎡

Show red

Working temperature -50-~+50.

Working voltage AC 220V 15%%.

Environmental requirements include Win95, Win 98, Win 2000 and WinXP.

Input mode computer input

Display content text, tables, geometric pictures, etc.

The frame rate is 120HZ.

The service life is more than 654.38+ 10,000 hours.

4. Semi-outdoor LED displays are divided into monochrome and bicolor displays. Semi-outdoor screen is a display screen used when the ambient brightness is high and the indoor screen cannot meet the brightness requirements. Its characteristics are high brightness and high resolution, which can meet the requirements of brightness and resolution at the same time in some occasions. Such as the indoor environment with transparent and translucent structure, the environment under the eaves of the hall, etc. standard

Φ3.75

Φ5.0

Single point diameter

3.75 mm

5.0 mm

Single point spacing

4.76 mm

7.62 mm

Pixels per inch

44 100 integral/m2

17200 points/㎡.

Average power consumption

200 watts/㎡.

180w/㎡.

Display color monochrome: display red.

Two primary colors: red, green and yellow.

All primary colors of the display gray scale are 256 levels, with nonlinear correction, and dual primary colors * * * can display 65,536 colors.

The power supply requires an input voltage of 220VAC 50Hz and single-phase three-wire system.

The system environment requires -5 ~ 45 degrees Celsius, and the temperature is 30% ~ 90%.

The control mode is computer networking control, and the screen pixels correspond to the computer monitor point by point.

Communication distance is 100 meter.

Life span exceeds 65438+ million hours.

5. The luminous body of the two-color LED electronic display adopts ultra-high brightness LED, and the display content is still clearly visible under the direct sunlight. This kind of display screen is mainly used to display characters and graphics. It inputs information by communicating with the computer. Compared with bar screen, teletext screen has the advantages of rich fonts and graphics. Compared with video screen, the biggest advantage of teletext screen is that one computer can control multiple screens and display them offline. Each light-emitting unit of outdoor dual-primary color display screen contains red and green colors, and 256 gray levels of red and green constitute 65,536 colors. The display body takes the computer as the control center and is equipped with perfect program production software and playback software. The electronic display screen and the electronic display window form a one-to-one correspondence, the display content is synchronized in real time, the screen size can be easily changed, and video signals such as VCD, VCR and TV can be received. The most remarkable feature of this control system is that the control logic is highly centralized and integrated. The front display module of the display screen mainly includes the driving circuit, and even the color matching function is completed by the main controller, so the display module circuit is extremely simple, which greatly improves the reliability and maintainability of the screen.

Scope of application:

It is used as a guiding system in transportation industries such as stations, airports and ports. It also plays an important role in shopping malls, gyms, post offices, hotels, traffic control and other environments by displaying the waiting information of exchange rates, stocks, futures and real estate transactions in banks, real estate and stock exchanges.

Specifications: Luminous point specifications PH 10, PH 12, PH 16, PH20, PH25.

Ph10mm

Ph12mm

Ph 16 mm

PH20mm mm

PH25mm mm

pixels per inch

10000 points/square meter

6944 points/square meter

3906 points/square meter

2500 points/square meter

1600 points/m2

Maximum brightness value

7000cd/m2

7000cd/m2

7000cd/m2

7000cd/m2

7000cd/m2

Average power consumption

300 Watts/m2

300 Watts/m2

200 Watts/m2

200 Watts/m2

150w/m2

heavyweight

30 kg/m2

40 kg/m2

45 kg/m2

45 kg/m

45 kg/m2

grey scale

1024 gray scale

Power supply demand

The input voltage is 220VAC 50Hz, three-phase five-wire system.

Frame refresh rate

Greater than 120 frame/sec

Control formula

Computer networking control, screen pixels correspond to computer monitors point by point.

Communication distance separation

Twisted pair ≤ 100m (no relay), multimode fiber ≤ 1200m.

6、gt； & gt product description

1) adopts dot matrix data format and can display graphics.

2) The system has a large capacity of LASH memory, which can store 16 pieces of information, and the information will not disappear after power failure. The upper computer edits and downloads the displayed information.

3) Each message has 8 import and export modes, 4-level flashing and 8-level stop options.

4) Standard 232 communication, convenient communication and easy connection.

5) The screen body and control are integrated, which not only saves space, but also avoids failures such as crash.

& gt& gt product application

LED strip screen LED strip screen LED strip screen LED strip screen

Terminology of LED display screen

1. What are pixels, pixel diameters and point spacing? Pixel: the smallest luminous unit of LED display screen, which has the same meaning as the pixel in ordinary computer display; Each light-emitting unit that can be controlled independently in the LED display screen is called a pixel. Pixel diameter: Pixel diameter ∮ refers to the diameter of each LED light-emitting pixel, in millimeters. Pixel spacing: The center distance between two pixels of LED display screen is called pixel spacing, also called dot spacing. The denser the spacing between points, the higher the pixels per inch per unit area, the higher the resolution and the higher the cost. The smaller the pixel diameter, the smaller the dot spacing.

2. What is an LED display module? LED display module: consists of several display pixels, which are structurally independent from each other and can form the smallest unit of an LED display screen. There are usually 8*8 lattice modules.

3. Cell board: It is the main unit of the display screen and consists of luminescent materials and driving circuits. Indoor screens usually consist of unit panels. Module: the smallest display unit of outdoor display screen. A plurality of light-emitting diodes are packaged in a fixed mold shell by welding, glue pouring and other processes according to a certain arrangement order to form a module. Unit box: it is the main unit of the display screen and consists of unit boards in a certain order. Outdoor screens usually consist of unit boxes.

4. What is SMT? What is SMD? SMT is the abbreviation of surface mount technology, and it is the most popular technology and process in electronic assembly industry. SMD is a surface mount device (abbreviation of surface mounted device), which is used for indoor full-color display screen, and can realize single-point maintenance and effectively overcome mosaic phenomenon.

5. What is a plug-in lamp module? What are its advantages and disadvantages? DIP-encapsulated lamps pass the lamp feet through the PCB board, and tin is filled in the lamp holes by welding. The module made by this technology is the plug-in lamp module, which has the advantages of high brightness and good heat dissipation, but the disadvantage is small pixels per inch.

6. What is a surface mount module? What are the advantages and disadvantages? Surface mount is also called SMT. SMT packaged lamps are welded on the surface of PCB by welding process, and lamp feet do not need to pass through PCB. The module made by this process is called surface mount module. Its advantages are: good display effect, large pixels per inch, suitable for indoor viewing; Its disadvantage is that the brightness is not high enough and the lamp itself is not good enough for heat dissipation.

7. What is a base module? What are the advantages and disadvantages? Surface mount is a product between DIP and SMT. The packaging surface of its LED lamp is the same as SMT, but its positive and negative pins, like DIP's, are all welded by PCB in the production process. Its advantages are high brightness and good display effect, but its disadvantages are complex technology and difficult maintenance.

8. What is three in one? What are its advantages and disadvantages? It means that SMT lamps packaged by LED chips with three different colors of RGB are vertically juxtaposed at a certain distance; Advantages of three-in-one: good effect; Disadvantages: complex technology and difficult maintenance; High cost.

9. What is three in one? Three independently packaged SMT lamps of RGB are vertically juxtaposed at a certain distance;

10. What's the difference between indoor module full-color screen and patch full-color screen? (1) light-emitting part: the display module of module full-color screen is generally yellow-green, and the pure green module is more expensive; Full-color mosaic screen generally uses pure green tube core (2) to display the effect: the visual perception of pixels on full-color module screen is rough, the brightness is low, and mosaic phenomenon is easy to appear; The patch full-color screen has good consistency and high brightness. (3) Maintenance: It is difficult to maintain the full-color module and the replacement cost of the whole module is high. The full color label is easy to maintain, and a single lamp can be repaired and replaced.

1 1, outdoor screen can use surface mount LED, why? I can't. The installation structure of outdoor screen is strict, and the SMD LED can't adapt to the harsh outdoor environment. The outdoor screen requires high brightness, and the current patch LED cannot meet the brightness requirements of the outdoor screen.

12. Why is the production cycle of outdoor screens longer? (1) procurement of raw materials: the procurement cycle of LED lamps is long, especially for imported molds, and the ordering cycle takes 4-6 weeks. (2) The manufacturing process is complicated: PCB design, shell manufacturing, glue filling and white balance are required. (3) Strict structural requirements: generally designed as a box, wind, rain and lightning protection should be considered.

What are the asynchronous and synchronous control systems for monochrome and full color led display screens?

Generally speaking, single and double color screens are door screens, column screens and other forms, and the display content is mostly characters, and the control system used is generally asynchronous. There are many kinds of asynchronous cards, such as back support, wide concept, video exhibition and so on.

Full-color screen is generally used for graphics and video playback, using synchronous system. The synchronization system belongs to Xingyu Lin;

But sometimes even a single two-color screen needs a synchronization system. For example, people who need to display real-time data (the single-color screen in the pigeon racing shed uses the synchronization system), people who are most interested in the effect and are not afraid to spend money (many screens in banks use the synchronization system even if they are two-color), and so on;

Moreover, some full-color bar screens sometimes use asynchronous cards (all full-color bar screens are at the entrance of the Construction Bank of this city).

Generally, single and double-color screens with small area and only used for displaying characters adopt asynchronous control system; Full-color screen adopts full-color synchronization system. Single and double colors also use synchronization system. Look at the requirements. If the information is updated frequently, it is best to use a synchronization system. In fact, you want to say when synchronization is needed and when asynchrony is needed. For general applications, most of them are synchronous, because not everyone can work for dozens of hours with the display screen open every day. Full-color and dual-color synchronization are mostly used in the case of gray scale, because the amount of gray scale is very large, ordinary chips can not store so much data, and it is not very fast to read U disk or SD card with single chip microcomputer.

Monochrome and bicolor have a small amount of data without gray scale. As long as real-time data is not displayed, it can be asynchronous.

If you don't know, you can use Baidu Kirin Electronics. Where can I study in the forum?

Advantages of led

Advantages:

High energy saving: energy saving and pollution-free means environmental protection. DC drive, ultra-low power consumption (single tube 0.03-0.06W), electro-optical power conversion close to 100%, the same light efficiency is more than 80% less than that of traditional light source.

Longevity: LED light source is called longevity lamp, which means a lamp that never goes out. The solid-state cold light source is encapsulated by epoxy resin, and the lamp body has no loose parts, and there are no shortcomings such as easy burning, thermal deposition and light decay of the filament. The service life can reach 60,000-65,438+10,000 hours, which is more than 10 times longer than the traditional light source.

Variety: LED light source can make use of the principle of three primary colors of red, green and blue to make the three colors have 256 shades of gray. Under the control of computer technology, it can produce 256× 256× 256 =16777216 colors, forming a combination of different light colors, and realizing colorful dynamic change effects and various images.

Environmental protection: environmental protection benefits are better. There are no ultraviolet rays and infrared rays in the spectrum, neither heating nor radiation, and the glare is small. In addition, waste can be recycled without pollution and mercury. It is a cold light source and can be safely touched. It belongs to a typical green lighting source.

High-tech: Compared with the monotonous luminous effect of traditional light source, LED light source is a low-voltage microelectronic product, which successfully combines computer technology, network communication technology, image processing technology and embedded control technology, so it is also a digital information product and a "high-tech" technology of semiconductor photoelectric devices, with the characteristics of online programming, unlimited upgrade and flexibility.