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The passive electronic squeegee developed by our company conforms to the enterprise standard of China National Railways Group Corporation "Railway Electronic Squeegee Part 2: Passive Electronic Squeegee" (Q/CR 685.2-2018). Passive electronic blockade is mainly applicable to all kinds of shed trucks and containers, and is used in conjunction with ground reading device, which automatically reads the passive electronic blockade information installed on the truck when it passes, and automatically uploads it to the service platform in real time. The product is applicable to various weather and geographical environments, and can continuously read the passive electronic blockade of various installation directions at high speed, and the reading rate reaches more than 99.9%, which can improve the obvious deficiencies such as single function of blockade management, lagging response and low operation efficiency currently adopted by our railway.