Close range real-time accurate positioning method integrating multiple algorithms

Abstract

The invention relates to a close range real-time accurate positioning method integrating multiple algorithms. The method includes the steps that a comprehensive access base station is arranged under a mine, and comprehensive access base stations with the ultrasonic ranging function are arranged at key positions; the positions of the comprehensive access base stations are initialized through a ground control center; positioning labels send positioning data to the comprehensive access base stations; each comprehensive access base station calculates the distance d from the each positioning label to the comprehensive access base station; the figured-out distances together with Ids of the comprehensive access base stations and Ids of the positioning labels are transmitted to an intelligent heterogeneous internet of things gateway through the comprehensive access base stations; information data and position data of the positioning labels are transmitted to the ground control center; the ground control center filters and corrects the positions of the positioning labels to obtain precise position information. According to the method, the positions of the positioning labels can be precisely measured, positioning precision is improved, and cost is saved.

Description

Technical field [0001] The invention relates to a wireless positioning technology, in particular to a short-range real-time precise positioning method integrating multiple algorithms. Background technique [0002] In recent years, with the rapid development of the national economy, coal mines and gold mines have developed vigorously. However, there are more and more major and extremely large mine accidents. At present, there are widespread difficulties in the management of underground personnel and the inability to monitor the construction personnel Specific location. [0003] The shortcomings of some personnel positioning systems in the prior art are as follows: [0004] (1) The current Zigbee positioning technology has poor positioning accuracy. Using the RSSI positioning model, when the fixed signal acquisition device is uniformly deployed every 50m, the highest positioning accuracy can generally only reach 7m~10m, which is far from reaching the requirements of precise positionin...

AI Technical Summary

Problems solved by technology

[0004] (1) The current Zigbee positioning technology has relatively poor positioning accuracy. Using the RSSI positioning model, when fixed signal acquisition devices are evenly deployed every 50m, the highest positioning accuracy can generally only reach 7m~10m, which is far from meeting the requirements of precise positioning;

[0005] (2) At present, the technology with high positioning accuracy is UWB technology. A set of small-scale UWB positioning equipment is about 100,000 yuan, which is expensive and high in cost; increase business costs

[0006] (3) Apply RFID technology to mark the passing personnel at the wellhead of the mine or some key places. The problem with this method is that the anti-interference ability is poor, the missed detection rate is high, and the location of personnel cannot be tracked in real time.

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