Indoor and outdoor positioning and navigation system and method

Abstract

The invention relates to an indoor and outdoor positioning and navigation system and method. The indoor and outdoor positioning and navigation system comprises a terminal board card, a transmission device and a server, wherein the terminal board card acquires angular velocity data, acceleration data and geomagnetic data, and a satellite signal as well, conducts differential positioning on the satellite signal to obtain differential positioning data. The angular velocity data, the acceleration data, the geomagnetic data and the differential positioning data are transmitted to the server throughthe transmission device and are stored. The server acquires indoor accurate position information and outdoor positioning information. Map information is acquired and combined with the indoor accurateposition information and the outdoor positioning information to obtain positioning map information which is transmitted to the terminal board card to be displayed through the transmission device. Compared with the prior art, the indoor and outdoor positioning and navigation system transmits angular velocity data, the acceleration data, the geomagnetic data and the differential positioning data through the transmission device to the server for matching, thereby realizing accurate positioning, facilitating using by workers, and preventing course drift.

Description

technical field [0001] The invention relates to the technical field of navigation, in particular to an indoor and outdoor positioning and navigation system and method. Background technique [0002] With the development of society, indoor and outdoor navigation and positioning has always been an increasingly popular topic. Outdoor satellite navigation and positioning technology is constantly maturing, which can provide us with reliable positioning, speed measurement, timing and other functions. Indoor positioning methods vary. [0003] The indoor and outdoor navigation technology in the prior art requires a large number of signal nodes to be arranged in advance, which is only suitable for use by centralized management personnel, and is not conducive to the use of free personnel. Furthermore, outdoor GPS positioning is used, and PDR dead reckoning positioning is used in the absence of GPS signals, but it is not considered that the accuracy of a single GPS positioning module i...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an indoor and outdoor positioning and navigation system and method. The technical problem to be solved is: a large number of signal nodes need to be arranged in advance, which is only suitable for centralized management personnel, which is not conducive to the use of free personnel; Within the range of 3-5 meters, and the PDR dead reckoning will accumulate errors to avoid the situation of heading drift

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