Indoor and outdoor person seamless positioning device

Abstract

The invention relates to an indoor and outdoor person seamless positioning device. The indoor and outdoor person seamless positioning device comprises a power module, a microprocessor module, a short-distance wireless communication module, a long-distance wireless communication satellite positioning module, a signal acquisition module, a wireless fidelity (WiFi) communication module and a human-computer interface module, wherein the power module supplies power to the microprocessor module, the short-distance wireless communication module, the long-distance wireless communication satellite positioning module and the signal acquisition module; the output end of the signal acquisition module is electrically connected with the input end of the short-distance wireless communication module; the short-distance wireless communication module, the long-distance wireless communication satellite positioning module, the WiFi communication module and the human-computer interface module are in communication connection with the microprocessor module respectively; the signal acquisition module comprises an air pressure temperature sensor, an inertial sensor and a geomagnetic sensor; the output ends of the air pressure temperature sensor, the inertial sensor and the geomagnetic sensor are electrically connected with the input end of the short-distance wireless communication module respectively; the microprocessor module is used for storing indoor and outdoor map data. The indoor and outdoor person seamless positioning device is simple in structure and integrates various positioning and communication devices such as a global positioning system (GPS), the WiFi communication module, the inertial sensor and the geomagnetic sensor.

Description

technical field [0001] The invention relates to a positioning device, in particular to a seamless positioning device for indoor and outdoor personnel using composite wireless network and sensing technology. Background technique [0002] There are many kinds of indoor and outdoor positioning methods at present, such as GPS global positioning, inertial-based positioning, short-distance wireless communication-based positioning, and WIFI-based positioning. However, there are some problems in these positionings. For example, GPS global positioning is good for outdoor positioning, but its GPS signal is very weak indoors. Therefore, GPS global positioning cannot achieve accurate positioning indoors; the cumulative error based on inertial positioning is large, making The positioning effect is poor; positioning based on short-distance wireless communication can only be applied to short-distance wireless communication, and if the wireless communication distance exceeds the coverage ra...

AI Technical Summary

Problems solved by technology

However, there are some problems in these positionings. For example, GPS global positioning is good for outdoor positioning, but its GPS signal is very weak indoors. Therefore, GPS global positioning cannot achieve accurate positioning indoors; the cumulative error based on inertial positioning is relatively large, making The positioning effect is poor; positioning based on short-distance wireless communication can only be applied to short-distance wireless communication, and if the wireless communication distance exceeds the coverage range, positioning cannot be implemented; based on WIFI positioning, on the one hand, WIFI signals are susceptible to interference indoors and outside, while Affect the positioning effect; on the other hand, the strength of indoor WIFI signals is different, and there will be dead spots without WIFI signals indoors, making the positioning effect unsatisfactory

At present, there is no technical solution in China that can combine the advantages of various positioning technologies to achieve seamless indoor and outdoor positioning.

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