Limited position-based region prewarning method

Abstract

The invention discloses a regional early warning method based on a limited location. According to the divided geographic location ranges of different danger levels, a plurality of electronic fences used to represent different danger levels are set up, and the electronic fences are polygonal; each electronic fence is established. The outermost minimum rectangle of the electronic fence; take each side of the electronic fence as a diagonal line, and establish the minimum outer rectangle for each edge, according to the smallest outer rectangle as the leaf node, the outermost smallest rectangle of the electronic fence as the root node and the preset R The tree construction rules establish an R tree; obtain the position of the target in real time, and use the ray algorithm based on the R tree index to judge whether the position of the target is located in a certain electronic fence area; according to the judgment that the target is in a certain electronic fence, In this way, the danger warning level of the target position is divided. Notifications are made through Beidou satellite signals, enabling relevant personnel to leave the dangerous area in time.

Description

technical field [0001] The invention relates to the technical field of location positioning and early warning, in particular to an area early warning method based on a limited location. Background technique [0002] In recent years, stampede incidents have occurred frequently due to the large number of people in scenic spots. On the one hand, it is the ineffective control of the flow of people. On the other hand, it also shows the lack of monitoring of the flow of tourists in the region. It was not noticed until the tragedy happened. In the marine field, according to official statistics, in the past 10 years, China's marine economic losses have accumulated to 129.42 billion. Disasters cannot be spared, but we can reduce losses through solutions. In the face of unpredictable marine disasters, divide the danger zone and give corresponding early warning information to ensure that personnel are outside the danger zone or escape from the danger zone as soon as possible, and can e...

AI Technical Summary

Problems solved by technology

At present, there are still problems that the location monitoring equipment is difficult to monitor in a small area and the ocean area is difficult to monitor and locate.

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