Alas, have you ever thought about it when you are staring at the high-speed rail station at a huge screen and looking for information on trains - where are the most suitable places for these cool LED displays? Let’s talk about this today, and you will be half an expert after reading it!

1. Where are the things installed in the station?

Let’s first look at where LED screens must be installed in the station. According to the latest industry data I have dug up,​ ​Five golden points with the largest traffic in the station​ ​You have to remember:

• ​​Entry head​ ​: Like the Hohhot High-speed Railway East Station, 24 large screens can be seen by passengers when they look up.
• ​​Waiting hall C position​ ​: The three-story giant screen at Zhengzhou East Station can both broadcast advertisements and display city promotional films
• ​​Both sides of the outbound channel​ ​: Longyan Station has an interactive screen here, so passengers can check buses and read family messages
• ​​Commercial area ceiling​ ​: Transparent LED screens are now popular, which can not block the view but also broadcast advertisements
• ​​Platform edge​ ​: Customized screen with guardrails, don’t be afraid of rain or snow

​​Give a real case​ ​: Last year, a high-speed rail station installed a curved screen at the corner of the escalator, and the passenger error rate dropped by 18%! You see, it works if you choose the right position.

2. What are the tricks to pay attention to when choosing a display screen?

Don't think you can use it by buying a screen! There are so many things to pay attention to here, I'll list it to you​ ​Pit avoidance list​​：

1. ​​Bright enough​ ​: Starting at 800 nits indoors, at least 4000 nits outdoors - equivalent to the intensity of the noon sunlight
2. ​​Waterproof and dustproof are standard​ ​: IP65 protection level is base, rainy and snowy weather works as usual
3. ​​The perspective must be wide​ ​: 170-degree visual angle is a basic requirement, no matter how far you stand, you can see clearly
4. ​​Maintenance is convenient​ ​: Modular design is the most reliable, which one is broken
5. ​​Don't consume too much energy​ ​: The new energy-saving screen saves 30% of electricity than the old model, and can save employees' wages a year

​​Tell me about the inside story of the industry​ ​: Some manufacturers will renovate and sell recycled old lamp beads, which is very easy for novices to get caught! I will teach you a method of identification - heat the screen with your hands and then cool it down quickly. The color of the genuine lamp beads will remain unchanged, and the refurbished ones will turn yellow.

3. What are the tricks hidden in the installation process?

Don’t think that buying the screen is done, installation is the highlight! Last year, there was a project in Dalian Metro, which was because of improper installation, which led to a collective strike after using the screen for half a year. Remember this​ ​Three key steps​​：

1. ​​Structural surveys must be professional​ ​: Measure the wall load, check the circuit load, calculate the heat dissipation space
2. ​​The bracket design is exquisite​ ​: Resistance to level 8 wind is a basic requirement, and thermal expansion and contraction must also be considered
3. ​​Debug parameters need to be detailed​ ​: The color temperature adjustment difference is 50K, and the display effect is very different

​​Lessons of blood and tears​ ​: There was a station that did not do lightning protection in order to save money, but three screens were broken by lightning during the rainy season, and the losses were enough to buy ten new sets of equipment!

4. What black technology does new display technology have?

Now LED screens are more than just shining! Say a few that shocked me​ ​New technology​​：

• ​​AR interactive screen​ ​: The screen of Zhengzhou East Station can scan the code to receive coupons, and the average passenger stay time increases by 7 minutes.
• ​​Environment perception system​ ​: Automatically adjust the brightness, you can see clearly at noon
• ​​Voice broadcast linkage​ ​: The sound and light synchronization system was built at a station in Shenzhen, and the vehicle error rate dropped by 25%.
• ​​Thermal imaging monitoring​ ​: The traffic of people is too large and the safety factor doubles

​​Future trends​ ​: I heard that the naked-eye 3D station navigation screen is about to be released, and even the signs will be laid off at that time!

5. Personal experience discussion

My biggest experience in this ten years is——​ ​Good screen is seven-point product and three-point use​ ​. I have seen too many stations spend a lot of money to buy top-level equipment, but it will not be maintained and made like second-hand goods. Three tips for everyone:

1. Regular dust removal is more important than anything else. Dust is the number one killer of LEDs
2. The circuit must be checked before the rainy season, and oxidation of the interface will cause color difference
3. Content updates need to be done by professional teams, and it is easy to burn driver ICs if you do it yourself.

Finally, I would like to say the heart-wrenching words: choosing a display screen is like finding a partner. It’s not enough to just look at your appearance, but also to look at your inner quality. A company has a monthly production capacity of over 10,000 square meters and its products are exported to 87 countries. Only such powerful people can be reliable. Next time you see a cool big screen at the station, you might as well pay more attention to its display effect - maybe it is an industry benchmark work!

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