A positioning system, method and device

Abstract

The embodiments of the present application disclose a positioning system, method and device, wherein the system includes: a signal broadcasting device and an object to be located, the object to be located includes a signal receiving module and a position correction module; the signal broadcasting device is fixedly deployed in a target geographical location In the environment, and the location information of its deployment location is stored; the signal broadcasting device communicates with the signal receiving module in the object to be located through D2D technology; the signal broadcasting device is used to broadcast the target message, and the target message includes the signal broadcasting device. position information; the signal receiving module is used to receive the target message, parse the target message to obtain the position information, and transmit the position information to the position correction module; the position correction module is used to determine the current position of the object to be located according to the position information transmitted by the signal receiving module location information. The positioning system can accurately determine the position information of the object to be positioned in the scene that cannot be positioned based on the GPS technology.

Description

technical field [0001] The present application relates to the technical field of communication, and in particular to a positioning system, method and equipment. Background technique [0002] Nowadays, the Global Positioning System (Global Positioning System, GPS) has been widely used in various positioning scenarios, such as vehicle positioning, user positioning, and so on. However, GPS technology still has certain limitations at present, that is, GPS signals cannot be received in many scenarios (such as tunnels, etc.), and correspondingly, positioning based on GPS technology cannot be performed. [0003] For the above scenarios, currently an inertial navigation system (Inertial Navigation System, INS) is mainly used for positioning. Taking the positioning of a vehicle driving in a tunnel as an example, the INS deployed on the vehicle can determine the current position information of the vehicle based on the known initial position information, combined with information coll...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned INS-based positioning is essentially a relative positioning, and its positioning error will increase with the accumulation of time and distance. When the driving distance is too long in tunnels and other scenes where GPS signals cannot be received, a large positioning error may occur. error, it is difficult to guarantee the accuracy of the determined location information

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