A real-time wireless transmission method of positioning data for sudden high-load situations

Abstract

The invention discloses a location data real-time wireless transmission method for burst high load condition. The location data real-time wireless transmission method comprises the following steps: (1), setting two threshold values c1 and c2 for number of connections for communication AP, wherein c1 and c2 are natural numbers, c1 is smaller than c2, k is larger than 0 and smaller than 1, k is a real number and is 0.7 generally; C2 is the maximum channel number for wireless protocol support; and (2), selecting the communication AP with the minimum load for connection according to the position of positioning equipment at present and the load of all APs in a range of taking the position as a circle center and semidiameter as r by the positioning equipment, and then uploading location data to the AP. The method is successfully applied to a monitoring system based on wireless indoor positioning; and the practice shows that an indoor positioning system configured with the method can be good in real-time performance in dense crowd monitoring.

Description

technical field [0001] The invention belongs to the technical field of network communication, and in particular relates to a real-time wireless transmission method of positioning data aimed at sudden high load situations. Background technique [0002] With the rapid development of wireless network technology and the increasing demand for location services, wireless location technology has received more and more attention. GPS (Global Position System, Global Positioning System) is a space satellite navigation and positioning system developed by the United States in the 1970s to provide real-time, all-weather and global navigation services in the three major fields of land, sea and air. For the open outdoor environment where the signal is easy to reach, GPS can provide high-precision positioning information. As for the indoor environment, due to the occlusion of the building itself and the internal structure of the building including walls, doors and windows, various furnish...

AI Technical Summary

Problems solved by technology

Usually, the number of people monitored by hospitalized patients or prisoners reaches hundreds of thousands of people, and a large number of people often appear in a small space due to activities such as dinners and meetings, which will cause a large load on the communication AP and channel, resulting in channel congestion. and increased transmission delay

[0007] (2) The regional mobility of personnel is relatively large

Due to the complex indoor space structure and the limited coverage of communication APs, personnel frequently switch between communication areas of different APs, resulting in delays in accessing the network

[0008] After the existing products on the market are networked, when the number of monitoring nodes in a local area reaches more than 500, the delay is as high as 23 seconds

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