Have you ever seen a meteorological monitoring station at 3 a.m.? Those display screens that remain motionless in the heavy rain and the warning information that is still clearly visible in the hail are supported by the specially customized LED screen. Let's talk about it today,​What are the tricks for meteorological display screens?​, if you choose the wrong one, you may not even display the typhoon path clearly.

1. Why can’t ordinary screens withstand it?

(Show you the real story first) Last year, the screen suddenly blacked out during a heavy rain alarm in a weather station in a coastal city. The monitoring found that raindrops penetrated water on the shell, causing a short circuit. This leads to the first knowledge point:

​​The three required subjects for meteorological screen​​：

1. Waterproof and rust-proof like a submarine—it must reach IP65 protection level, and you won’t be afraid of heavy rains and hails.
2. Be blinded by the strong light - the brightness of the outdoors starts at least 4000cd/m², and you can still see clearly under the sun at noon
3. No strikes alternately between hot and cold - it must be able to work normally between -30℃ and 60℃

For example, the display screen installed by a certain International Meteorological Bureau last year was installed. After working in a sandstorm for 72 hours, it was opened and found that the interior was spotless, relying on a special sealing structure.

2. Hidden skills of professional weather screens

Do you think it's just showing a weather map? The weather screens are now all "hexagonal warriors":

• ​​Refresh in seconds​: The typhoon path is updated every 3 seconds, the ordinary screen will be stuck in PPT, and the professional screen refresh rate will be ≥1920Hz
• ​Intelligent dimming​: Automatically adjust light during the day and automatically darken at night. This function saves electricity bills of a meteorological center by 25%.
• ​Multi-source switching​: Radar map, satellite cloud map, and early warning information seamlessly switches within three seconds, as smooth as the TV station's cutting lens

I have a cold knowledge:​A truly professional display screen can be pre-installed with weather data interface​​, when the red warning is encountered, it will automatically flash in full screen, which is more than 15 seconds faster than manual operation.

3. Guide to avoid pits when purchasing

(Comrades who are preparing to purchase should pay attention) Remember these three "must not save":

1. ​​Protection level​: It is better to spend 20,000 more than choose IP65 certification. Save this money and may lose the entire set of equipment.
2. ​​View angle​: It must reach more than 160 degrees before the slope terrain of the mountain observation station can be seen clearly
3. ​Maintenance interface​: I have to bring the front and rear double maintenance doors. Last time I saw my master repairing the screen at minus 20℃, and almost frozen into an ice sculpture.

Here is a comparison table:

普通商用屏 | 专业气象屏
使用寿命3年 | 至少8年起跳
手动调亮度 | 自动感光调节
单一信号输入 | 六路信号备份

4. The installation location is in particular

(This is the experience of blood and tears teaching) Have you ever seen a weather station with screens installed in the air outlet? As a result, the screen has to be changed twice a year. The correct operation should be:

• Avoid the dominant wind direction 30 meters
• The ground height is 2.5-3 meters most suitable
• The foundation must be built with 1.5 meters deep piles (especially in typhoon-prone areas)

The case of an island weather station last year was the most convincing: it was equipped with a "twin screen", with the main screen facing southeast and the backup screen facing northwest, and used alternately during the typhoon season to perfectly solve the problem of view occlusion.

5. The metaphysics of maintenance

Let me tell you about the inside story of the industry: If the screen of the same model is maintained, it will last for ten years, and if it cannot be maintained, it will be scrapped after three years. Note these three key points:

• Ash must be cleaned every month (blow with compressed air, not wiped!)
• Check the power module every quarter (focus on capacitor bulge)
• Have a comprehensive physical examination immediately after extreme weather

There is a counterexample: the screen at a northern meteorological station has been fine for five years, but it was not deiced in time last winter, and the snow crushed the cooling holes, and the screen went on a black strike in the spring.

6. Watch the future trend first

(High-energy warning in the front) These new technologies have been circulating in the industry recently:

1. ​Self-cleaning screen​: The surface is coated with nanomaterials, and the rainwater takes away dust by itself
2. Photovoltaic power supply system: integrated solar panels on the top of the screen, which can last for 72 hours on cloudy days
3. Augmented reality display: Use your mobile phone to scan the screen and jump out of the 3D cloud analysis diagram

I heard that some manufacturers are testing anti-hail coatings. If the ice hockey hits it, it will bounce off by itself. If this is done, how many outdoor monitoring stations will have to be saved.

Editor's opinion: To be honest, many units are still using ordinary commercial screens to make do with it. When encountering extreme weather, something big will happen if you lose your chain at critical moments. Choosing a professional weather screen is like buying insurance. It looks expensive at ordinary times and can help you at critical moments. Those with​Intelligent environment adaptation system​andMultiple signal backupAlthough the screen is 30% more expensive, it is more cost-effective after ten years. Remember, the clouds in the sky are unpredictable, and the display screen on the ground must be as stable as Mount Tai!

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