序章
With the diversification of usage scenarios and the continuous improvement of display effects, the stability and reliability of LED表示画面 have also become the focus of people’s attention.
Redundant backup, as an effective means to improve system stability, has also been widely used in the field of LED display screens. So, does every LED display screen have to have a redundant backup? The answer is no. Please check the content of the article for specific reasons.
1. What is the role of redundant backup of LED display screens?
Redundant backup, in simple terms, is “prepare one more copy.” Just like what we usually say, “Be prepared for any eventuality,” store more food at home just in case, or bring an extra umbrella before going out, afraid of rain.
In the field of technology, redundant backup is also the same reason. That is, to prevent the system or equipment from failing, there is another set to take over to ensure that everything runs normally.
If the LED display screen fails, such as a certain place is not lit or the entire screen is black. Especially when you are going to hold an event, then redundant backup comes in handy. As we said before, prepare one more copy.
In LED display screens, redundant backup means preparing an extra copy of those key components (such as the power supply, control board, etc.). In this way, when one component fails, another component can immediately take over to ensure that the screen can still display normally.
Specifically, redundant backup has the following functions in LED display screens:
- Improve stability:
It is like adding an extra wheel to a bicycle. Although only two wheels are usually used, with an extra wheel, the bicycle is more stable and not easy to fall. The same is true for LED display screens. With more redundant backups, it is less likely to fail.
- Reduce downtime:
If a component of the LED display screen is broken and there is no redundant backup, the entire screen may have to stop for repair. However, with redundant backup, you can immediately replace the spare parts, and the screen can continue to light up without stopping for repair.
2. What are the considerations for whether LED display screens need redundant backup?
When you decide whether to add redundant backup to the LED display screen, it is actually like considering whether to buy insurance for your display screen.
This depends on where your LED display screen is used, whether the redundant backup is expensive, and whether it is technically feasible to install insurance. Let’s talk about these three aspects below.
1). Use scenarios:
1.1). Different places have different requirements for stability:
Indoor: For example, in conference rooms and shopping malls, LED display screens are like TVs in the living room of a home. They mainly play advertisements and display products.
It doesn’t matter if there are some minor problems occasionally. They can be fixed. Therefore, the demand for redundant backup in such places is not so urgent.
- 屋外：
For example, in concerts and スポーツ venues, LED display screens are like fireworks shows during the Chinese New Year. They cannot stop for a second. If they stop, they may ruin the venue. Therefore, such places must have redundant backups to ensure that everything is foolproof.
- On ステージ:
In addition to not being able to stop, the picture must be smooth, and the color must be beautiful; just like the stars on the stage, they must always be in the best condition.
1.2). The difference between key occasions and general occasions:
- Key occasions:
Just like the concerts and sports games mentioned above, the LED display screen is the protagonist at this time, and no problem is allowed. Therefore, redundant backup is necessary, just like a star must buy insurance before appearing.
- General occasions:
For example, in commercial advertisements and interior decorations, LED display screens are like paintings at home. They just need to look good.
Occasionally, there will be some minor problems that will not affect the overall situation. Therefore, redundant backup is not necessary at this time, and it can be decided according to the budget.
2). Cost considerations:
2.1). Redundant backup costs extra money:
Installing redundant backup is like buying insurance for your home, and you have to pay extra money.
This money includes the money for buying backup equipment, installation, and debugging, and it may also make the display screen larger and heavier, so you have to spend more money on the supporting structure.
2.2). Is it cost-effective:
You have to do the math to see how long the display screen can be used stably after installing redundant backup and how much loss can be avoided. If the display screen has almost no problems after installation, then the money is worth it.
If there are still frequent problems after installation, or the problem is not serious and can be repaired, then the money may not be worth it.
3). Technical feasibility:
- What is the current technical level:
The current LED display technology is very mature, just like the technology of building a house, which can ensure that the house is stable and durable. Similarly, the current redundant backup technology is also very reliable, and there are many options to choose from.
- Is it difficult to install insurance?
It is technically not difficult to add redundant backup; just like reinforcing a house, you just need to find a professional team to design and construct it. However, you still have to pay attention to some details, such as how to choose the backup power supply and how to lay the signal line.
- Choices in different situations:
If it is a high-end, large, or critical LED display, like a luxury villa or a celebrity’s home, then adding redundant backup is a must.
If it is a low-end, small, or general LED display, like a signboard of an ordinary residence or a small store, then adding redundant backup is not necessary, and you can decide according to the actual situation.
In general, when deciding whether to add redundant backup to the LED display, you have to consider the three aspects of usage scenario, cost, and technical feasibility.
Just like buying insurance, you have to see where the home is, whether the insurance is expensive, and whether it is difficult to install insurance. After careful consideration, you can make the most sensible choice.
3. Implementation methods of redundant backup of LED display screens
1). Implementation methods
1.1). Power redundancy:
Imagine that you are watching an important football game, and suddenly, the big screen in the stadium goes black!
That may be because of a power problem. But if there is a “substitute power supply” connected immediately, the screen can continue to light up, and the game can continue to be watched.
How to achieve it: Just install two or more power supplies on the LED display, one for main use and one (or several) for backup.
利点: The display is more stable, and it is not easy to go black due to power problems.
短所: It costs more money, and the installation is a little more troublesome.
Where to use it: For example, outdoor billboards, stadiums, and other places where the screen cannot go black.
1.2). Signal redundancy:
Imagine that you are watching a concert, and the picture on the big screen suddenly freezes! That may be because there is a problem with the signal transmission.
But if there is a “double insurance,” the signal can be replaced immediately with another one if it is broken, and the picture can continue to be smooth.
How to achieve it: Use two signal lines to transmit the signal, one for main use and one for backup.
利点: The picture of the display is more continuous and not easy to be interrupted due to signal problems.
短所: It also costs more money, and the wiring is slightly more complicated.
Where to use it: For example, concerts, large conferences, and other places require high picture continuity.
1.3). Control card redundancy:
The control card of the LED display is like its “brain.” If the “brain” is broken, the display will not work. Therefore, we can also equip the control card with a “substitute.”
How to achieve it: Install two or more control cards, one for the main use and one (or several) for backup.
利点: The display is more reliable and not prone to strike due to control card problems.
短所: It still costs more money, and debugging is a little more troublesome.
Where to use: For example, stage performances, high-end exhibitions, and other places with extremely high requirements for display screens.
2). How do you choose the most suitable one?
Now, we know several common ways of redundant backup of LED display screens, but how do we choose the most suitable one? In fact, it’s like buying insurance. We have to consider our own needs and budget.
- See where it is used:
If the display screen is used in a place where the screen cannot be black, or the screen cannot be broken, then we have to consider power redundancy and signal redundancy. If it is used in a place with extremely high requirements, then we have to consider control card redundancy.
- Calculate the account:
Redundant backup costs more money, so we have to see if our budget allows it. If the budget is tight, then consider adding backup to the most important part first.
- Think about whether it is technically feasible:
For example, if the wiring is too complicated or the debugging is too troublesome in some places, it may not be suitable to add some kind of redundant backup.
結論
In summary, we have come to a clear conclusion: not every LED display must have redundant backup. The use of redundant backup should be based on the actual usage scenario, cost considerations, and technical feasibility.
In critical occasions, in order to ensure the stability and reliability of the display, it is a wise choice to use redundant backup. In general occasions, we can flexibly choose whether to use redundant backup according to the actual situation.
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