Is the global GPS positioning system really free?vehicle gps tracker webfleet solutions

　　Some friends often ask about the charging of GPS. Some people say that the use of GPS on the Internet is completely free, and some people say that using GPS cost money, which makes friends who first know GPS confused. I don’t know who said who said it. It makes sense.

　　So what does GPS collect? In fact, the answers to this question from different angles are different. First of all, it should be clear that the GPS signal is broadcast. The scientific name is the source of no source. Like the radio broadcast, the emission signal is the accurate time and the location information of the satellite. The GPS modules on our mobile phones and cars also have accurate time. Use four satellite broadcast information to locate. Therefore, it is not a satellite to transmit signals for a certain GPS user machine, which is covered with no difference. In other words, GPS is like broadcasting. As long as there is a acceptance end, it can be received. Therefore, the US government does not charge a direct charge.

　　However, like a radio station, it is free to receive the broadcast signal, but the broadcast equipment needs to be purchased by itself. Although the ICD file of the GPS is open, the GPS signal requires GPS receiver or GPS chip, and GPS chip manufacturers and GPS receiver manufacturers need to pay GPS patent fees for legalized production. At the end The superposition is on the product sold to users. In addition, companies that develop GPS software will also pay some costs of GPS operators. From this point of view, GPS indirectly charges users a certain fee. However, with the global popularization and development of GPS, these patent authorization costs are getting lower and lower, and it is almost equivalent to free to each user.

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