Considerations for choosing LED video wall screen control card
As a key player in the field of security monitoring and display, LED video wall screen has a direct impact on the direction of the security industry. Outdoor LED has incomparable advantages in the development of intelligent transportation in LED industry, and it is an important development direction in LED field.
What is the LED video wall screen control card?
The LED video wall screen control card is the core component of the LED graphic display screen. It is responsible for receiving the picture display information from the computer serial port, putting it into the frame memory, and generating the serial display data and scanning control sequence required by the LED display screen according to the partition driving mode. The effect of LED video wall screen is related to it.
What are the categories of LED display control cards?
It can be divided into single and double color control cards, multi-color control cards and full-color control cards.
What should I pay attention to when using LED display control card?
Different brands of control cards and corresponding installation software are different. The same brand is also divided into different models, with great differences in functions. Simple non partition control card is commonly used for small area monochrome screen, which has high cost performance; The larger area can use the partition control card, and the price is higher.
What are the connection modes of LED display control card?
The connection modes between the control card and the computer include: network port (TCP / IP), serial port (RS232, RS485), U disk conduction, GPRS wireless connection, ZigBee wireless connection and other main modes.
How to select the LED display control card?
First, understand the specification and size of LED display screen, calculate the number of points, and know the effect you need, whether synchronous or asynchronous, whether secondary development is required; Then, determine the synchronization and asynchrony, determine the effect, determine the point range, determine the price range, and finally determine the card; The most suitable control card is not necessarily the one with high price and good quality. Finally, the software is not suitable for yourself and customers.
What if the LED display control card cannot be found?
1. Confirm that the control card is compatible with the software.
2. Check whether the connecting line falls off and is loose. Check and confirm that the serial port line used to connect the control card is matched with the control card. Some control cards use straight through (2-2, 3-3, 5-5) and some control cards use (2-3, 3-2, 5-5).
3. Ensure that the control system hardware is powered on correctly.
4. Select the correct product model, correct transmission mode, correct serial port number and correct baud rate according to the control card software and the selected control card, and correctly set the address bit and baud rate on the hardware of the control system according to the dial switch diagram provided in the software.
5. If it still fails to load after the above inspection and correction, please use a multimeter to measure whether the serial port of the connected computer or control system hardware is damaged to confirm whether it should be returned to the computer manufacturer or the control system hardware for testing.
6. If the fifth step is inconvenient, please contact the manufacturer to provide technical support.
In the future, with the progress of science and technology,
The LED display screen has a larger display area, and the advertising effect will naturally be better and better. Look forward to more wonderful products in the global advertising industry!
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