Its role is not limited to this, in addition to civilian use, it also plays a more critical role in many fields.

　　Taking sea freight as an example, let alone these giant ships that need to be guided by GPS during navigation, and even when lifting containers during unloading, cranes need to use GPS to determine which container they should lift.

　　Modern agriculture also relies heavily on global navigation systems. This system can assist farmers in agricultural vehicle navigation, leveling, precise sowing, spraying, fertilization, data management, crop vitality detection and variable control, and other tasks. Whether in terms of efficiency or accuracy, it is much higher than manual management.

　　Of course, the global navigation system also plays a very important role, which is its military significance. Firstly, the guidance of missiles requires the use of GPS and other systems for navigation, in order to accurately hit the target. In addition to missiles, drones also need to determine the location of attack targets based on the navigation of satellite systems. In military operations, the military can also use navigation systems to determine its position and direction of travel.

　　The London School of Economics once conducted an assessment that if GPS was interrupted for 5 days, it would cause up to 5.1 billion pounds (approximately 6.5 billion US dollars) in economic losses to the UK! For the United States, the daily loss of GPS malfunction will also be as high as $1 billion. If it happens between April and May, which is the planting season for agriculture, the daily loss can even reach up to 1.5 billion US dollars!

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