Alas, some of the car advertising screens running all over the streets are as bright as searchlights, and some of the videos are stuck in PPTs. Is your company also in a hurry to buy smart car screens, but isn't you afraid of being cheated? Last month, I helped the logistics fleet purchase, and the supplier asked for a price of 8,000 per square meter. As a result, snowflakes appeared three months after loading!​​Today we will break it apart and talk about how deep is the water on this smart car screen?​​

1. Four parameters determine whether your screen is treasure or grass

​​"Don't be fooled by sales!"​​Before buying the screen, please suck this set of numbers first:

1. ​​Brightness must be divided into scenes​：

• City buses choose 4000-5000 nits (equivalent to 1/3 of the brightness of the noon sun)
• Long-distance freight can reach 6000+ nits (otherwise, it will be turned into a mirror under the sun in seconds)

1. ​​Refresh rate ≥1920Hz is the bottom line​：

• Shooting mobile ads? Below this number, even the traffic trajectory cannot be grasped
• Do real-time navigation? At least 3840Hz is required to avoid dragging

1. ​​Protection level IP65 starts​：

• Have you ever seen a short circuit in the screen of a express delivery vehicle on rainy days?
• Northern customers focus on low-temperature start-up performance of -30℃

​Say something real​: Last year, a chain of milk tea carts bought a non-standard screen with cheap pictures. It rained in summer and the internal circuit board was rusted, and the maintenance fee was more expensive than buying a new screen!

The advantages and disadvantages of the second and third procurement channels are revealed

​​"Direct sales from manufacturers may not be the most cost-effective!"​​Check the seat according to your usage:

• ​​Small and medium-sized fleet (＜50 vehicles)​​：
  Find a local system integrator (save shipping costs and can also save on debugging services)
• ​​National Logistics Network (200+ vehicles)​​：
  Direct connection to the factory (be careful of the "Official Brand OEM" trap, and focus on checking whether the monthly production capacity exceeds 10,000 square meters)
• ​Government Transportation Projects​：
  Need to bid for more than three companies (remember to check ISO9001 and CCC certification)

​​Lessons of blood and tears​​: I have seen the purchasing manager being fooled by the "own factory" and found that it was assembled by the iron shed when the goods arrived - at critical moments, we have to look at the regular army with a full-process quality inspection system!

Three or five contract traps and pit Xiaobai

​​"Three-year warranty? Maybe a word game!"​​Wear a magnifying glass when signing the contract:

1. Pixel spacing is written to death (such as P6.0±0.01mm)
2. The warranty must include a power module (have you seen only light beads but not drivers?)
3. Brightness attenuation clause (no >5% per year)
4. Maintenance response ≤4 hours (high-speed anchorage cannot be delayed)
5. Software upgrade service (including at least three free iterations)

​​Anomalous truth​: Don’t think that imported goods are reliable! A cross-border logistics vehicle has to wait three months for shipping to replace the receiving card, and now I regret it!

4. Three maintenance tips to extend screen life

​​"The screen is the beginning of the test!"​​Maintenance tips that veteran drivers won’t say:

1. Turn on at least 24 hours a month (long-term power outage is prone to aging)
2. Use neutral solvent for cleaning (alcohol wipes the screen? Wait for degumming!)
3. The bumpy road section has a speed of 30% lower speed (no matter how good the shock absorption is, you will be afraid of continuous impact)

Recently, there was a tough operation: installing a vibration sensor on the screen bracket, the mobile phone can monitor abnormal vibrations in real time - it is said that it saves 150,000 yuan in repair costs in two years!

The editor's eight years of experience in trampling on tricks

I have seen too many purchases and car crashes, so I say something to my heart:

1. ​​Low bright high-gray technology is the kingdom​: 1920Hz refresh rate and intelligent dimming, you can see clearly during the day and not dazzling at night
2. ​​The quick disassembly structure must be welded to the end​: The aluminum-magnesium-zinc box is three times more resistant to fabrication than ordinary iron frames
3. ​24-hour response is not a gimmick​: Last year's Double Eleven logistics vehicle blacked out in the early morning, and the engineer arrived with the backup module for 20 minutes

Recently, a new trend has emerged in the industry - a smart screen with environmental perception can automatically adjust brightness. Last month, the visibility of this screen screen increased by 40% on rainy days, and the power consumption decreased by 15%. So, you can’t just look at the price when buying a screen, but you have to look at the technical precipitation!

Finally, an industry secret was revealed: A truly reliable manufacturer dares to show you the live broadcast of the production workshop! Before the next purchase, you might as well ask for a video factory inspection - after all, a 10,000-square-meter automated production base will not lie, do you think so?

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