The screen structure, led graphic display screen is a main portion and a dot line driving circuit further includes some other circuits (and not strictly required, depending on the arrangement required can be determined and printed circuit board). The display dot matrix is ​​mostly made up of 8×8 monochrome or two-color display units. The internal components of the graphic LED display screen have balanced brightness and the product range is wider. These superior features are enough to become one of the most distinctive and developed display products.
Then how do these graphic LED screens illuminate? In the internal control system, the intelligent display unit is part of the partial LED display, which can control the brightness and contrast of the entire unit board. The subtitles are realized in the computer control terminal. Through the power control, the compiled subtitles and graphic information are reorganized to realize the synchronous transmission of information and subtitles.
In addition, in use, graphic LED display, will also involve product stability control system, peripheral waterproof coating, heat control fan, etc., these are also the premise to ensure the stable use of the display, can be conducive to the stable operation of the display, while In addition to all kinds of bad weather, it can ensure that the graphic LED display is free from outside interference.
For those who have the intention to purchase, choose the graphic LED display to pay attention to the product parameter configuration, suitable field, and environmental needs. Different applications have different requirements for graphic LED display. For example, banks, shopping malls and other advertising screens for product corporate image promotion can use low-cost φ3.75mm dual primary color display. If the display is required to be good, use a φ5mm full color display.
The main components of the graphic LED display include the following points, which can be used for reference when purchasing:
1 adapter
The host computer adopts the serial port RS232 protocol to go online through the RS232-RS485 adapter, and the adapter is optically isolated.
2 control panel
Receiving the information to be displayed and various control commands transmitted by the PC through serial communication, the control board contains a single chip and a memory, and the on-screen control board stores the information and then displays it on the LED display according to the command. Features are as follows:
a. When the number of vertical points is less than 128, the number of horizontal points can be as long as 2000 points. If the vertical direction is 16 points, the horizontal direction is up to 4000 points.
b. The large-capacity memory supports a one-two-character font Chinese character font and a large number of proprietary fonts, and has a storage capacity of 16 screens.
c. It can be controlled by computer or offline.
d. The information can be saved for 1 year after power off.
e, with a perpetual calendar real-time clock function.
3 single cable (four core)
Four-wire system: one pair of differential twisted pair reception and another pair of differential twisted pair transmission. The communication distance is 1200 meters. It adopts bus-type networking structure and has a maximum load of 32 lower-level machines.
4 PC programming software
Dedicated communication LED screen LED program programming software, in line with LED graphic display control protocol. Compilation and broadcast of text and image programs of multiple monochromatic or dual primary color led displays of different lengths and widths. Send up to 16 shows at a time.
5 graphic LED display control protocol
a. The protocol supports dot matrix monochrome and dual primary color text networking LED displays.
b. The networking form is bus type, the upper computer is a PC computer, and the lower computer is a single chip microcomputer in the LED display control board. Adopt four-wire system, the online protocol is RS485.
c. The host computer adopts the serial RS232 protocol to be converted and put online.
d. Support TCP/IP protocol transmission.
Terminal block is a kind of accessory product used to realize electrical connection, which is divided into connector category in industry. With the higher degree of industrial automation and the more strict and precise requirements of industrial control, the amount of terminal is increasing. With the development of electronic industry, more and more terminals are used, and there are more and more types.
So each part of the terminal block is very important. For example, hardware, there are all copper, copper, stainless steel and so on.
Terminal Blocks Independent Parts
Brass Terminal Block,Brass Earth Terminal,Brass Connector Block,Waterproof Terminal Block
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