A gis-based method for evaluating the layout of monitoring points in a safe city

Abstract

The invention relates to a method for evaluating the layout of monitoring points in a safe city based on GIS, comprising: obtaining the basic geographical data of the city through a GIS interface module; obtaining the monitoring point data; The weight of the recurrence times of the point; the recurrence rate is calculated according to the road network topology and the weight of the recurrence times of each monitoring point; the position, orientation, effective coverage area, recurrence rate and corresponding of the camera of the monitoring point are displayed on the GIS map path; for cities where monitoring points have been laid out, the user judges whether the recurrence rate meets the standard according to the recurrence rate, and if the judgment result is no, the monitoring points will be improved; for newly built cities without monitoring point layout In the city, the user judges whether the recurrence rate meets the standard according to the recurrence rate, and if the judgment result is no, the monitoring points are arranged. The present invention evaluates the monitoring point layout of the city by the recurrence rate, and has high scientificity and accuracy.

Description

technical field [0001] The invention relates to the field of safe city video monitoring, in particular to a GIS-based method for evaluating the layout of safe city monitoring points. Background technique [0002] As the construction of safe cities is in full swing across the country, the social security video surveillance system is playing an increasingly important role. However, there is no objective guiding standard for the deployment of monitoring points, and the selection is often based on the experience and needs of public security personnel. There is no unified and objective evaluation index for whether it meets the actual needs in actual combat. For a certain location, there is no authoritative measurement standard for whether monitoring points should be installed. At the same time, there is no objective evaluation system for whether the monitoring point layout plan is reasonable or not. Therefore, it is necessary to establish an evaluation system and method for monit...

AI Technical Summary

Problems solved by technology

Quantitative indicators and coverage indicators can be well evaluated, but whether the monitoring points have played a role in public security prevention and control work cannot be assessed, and there is a lack of a good evaluation system

In fact, due to problems such as insufficient capital investment and insufficient application demonstration, unreasonable design of camera monitoring points has appeared in many cities, resulting in some monitoring areas being too densely laid out and causing waste, while some monitoring areas do not take into account becoming Monitoring blind area

At present, there are very few relevant researches and methods on point layout evaluation. Even if some experts and scholars have proposed some methods, most of them are based on subjective evaluation, and the scientificity and accuracy need to be improved.

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