Azimuthal orientation-based positioning and monitoring device and indoor positioning system

Abstract

The invention provides an azimuthal orientation-based positioning and monitoring device and an indoor positioning system. The positioning and monitoring device implement sending of a positioning and monitoring signal by virtue of a Bluetooth beacon module, is low in power consumption and long in cruise duration, can be matched with mainstream personal mobile devices in the market at present, by virtue of functions of shielding isolation and reflecting surface orientation of an electromagnetic shielding case, and in combination of signal intensity detection and distance measurement of Bluetooth wireless communication, positioning accuracy is well guaranteed, and the problem in the prior art that indoor positioning technology is difficult to satisfy an indoor positioning application requirement, and thus promotion and development of the indoor positioning technology are restricted is solved. At the same time, by use of the azimuthal orientation-based positioning and monitoring device provided by the invention, by virtue of a positioning processor having a data processing function, an azimuthal orientation-based indoor positioning system can be formed through combination and construction, construction forms are various, and thus requirements of various different indoor positioning application environments can be satisfied.

Description

technical field [0001] The present invention relates to the field of indoor positioning technology and bluetooth short-distance wireless communication technology, and in particular to an azimuth-based positioning monitoring device. The present invention also relates to an indoor positioning system using the azimuth-based positioning monitoring device. Background technique [0002] In indoor space, due to the weak signal strength when the satellite signal reaches the ground and the inability to penetrate buildings, etc., satellite positioning cannot be used. Therefore, it is necessary to realize the positioning of people, objects, etc. technology. [0003] Indoor positioning technology refers to the positioning technology that mainly adopts wireless communication, base station positioning, inertial navigation positioning and other technologies to form an indoor positioning system in the indoor environment to determine the location of people and objects in the indoor space. A...

AI Technical Summary

Problems solved by technology

Indoor positioning with the help of cellular base stations also involves the problem of poor positioning performance due to cellular signals being blocked by buildings

Indoor positioning with the help of infrared rays or RFID, mainly by installing several infrared optical sensors or radio frequency receivers distributed indoors to receive infrared rays or radio frequency signals emitted by mobile devices for positioning, can solve the problem of indoor positioning; but , because infrared rays cannot pass through obstacles, infrared rays can only propagate at line-of-sight and are easily interfered by other lights, while radio frequency signals can pass through obstacles, but their operating distance is relatively short (generally the longest is only a few dozen meters), and both of these positioning methods rely on the deployment of a large number of detection receivers indoors to sense signals, and then calculate the positioning position with the help of a multi-point positioning algorithm (similar to the base station positioning algorithm). A large number of detection receivers not only lead to The increase in the hardware cost of the indoor positioning system also requires a relatively complex power supply wiring design for each detection receiver indoors. The overall cost is high, and the multi-point positioning calculation process is relatively complicated. If there is a fault, it is prone to large positioning errors, and the accuracy of positioning and orientation is not stable enough

More importantly, neither infrared ray transmitters nor RFID radio frequency transmitters are easy to integrate into mobile devices commonly used by the public (such as mobile phones), and it is difficult to communicate with mainstream personal mobile devices on the market, which greatly limits indoor positioning. Promotion, application and development of technology

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