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A Method of Dynamic Prediction of Illegal Parade Path Based on Scene Dependence

A technology of dynamic forecasting and routing, applied in forecasting, instrumentation, data processing applications, etc., can solve the problem of not being able to provide correct decision-making basis, not being able to accurately predict the full-cycle evolution of illegal parade events, and not fully understanding illegal parade group events Issues such as the evolution law of the subject's time and space, to achieve the effect of enhancing accuracy

Active Publication Date: 2021-08-31
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Through the above analysis, it can be found that the existing research methods only carry out risk assessment, early warning and simulation of events based on the internal evolution law of the main body of the procession, and do not fully understand the time-space evolution law of the main body of the illegal procession group event in a specific scene, resulting in the inability to realize the illegal process. Accurate prediction of the full-cycle evolution of parade events, but cannot provide correct decision-making basis for relevant departments
At present, there is still a lack of a dynamic prediction method for illegal parade paths supported by scene dependence

Method used

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  • A Method of Dynamic Prediction of Illegal Parade Path Based on Scene Dependence
  • A Method of Dynamic Prediction of Illegal Parade Path Based on Scene Dependence
  • A Method of Dynamic Prediction of Illegal Parade Path Based on Scene Dependence

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Embodiment 1

[0077] Such as figure 1 A method for dynamic prediction of illegal parade paths based on scene dependence is shown, including the following steps:

[0078] Step 101: Obtain urban road network data, POI data and police station data, and perform preprocessing operations on the data;

[0079] Step 102: constructing an undirected road network graph according to the urban road network data;

[0080] Step 103: Constrain POIs (excluding police stations) and police stations to the road network;

[0081] Step 104: Calculate the influence of different types of POIs (excluding police stations), road sections and police stations on illegal parades;

[0082] Step 105: Perform dimensionless processing on each index data by means of averaging method;

[0083] Step 106: Carry out the section weight calculation for different sections, and construct the arc section weight matrix of the road network undirected graph G according to the calculated section weights;

[0084] Step 107: Dynamicall...

Embodiment 2

[0138] This embodiment uses the road network, POI and police station distribution data of Wuchang District, Wuhan City, my country to illustrate the specific implementation of the present invention. The specific implementation steps of the present invention to assist in solving public safety-related problems will be described in detail below in conjunction with examples:

[0139] 1) Data preprocessing. For the road network data in the study area, check whether there are topology errors in the road network data, and if so, perform topology repair.

[0140] 2) Construct the road network undirected graph. The road network of cities in the study area is abstracted into an undirected graph structure G=(E, V), where E represents the arc set of roads, and V represents the node set of roads.

[0141] 3) Match POI points (excluding police station points) and police station points to the road network.

[0142] 4) The position of the parade group is initialized. At t=13:00, the initia...

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Abstract

The invention discloses a method for dynamically predicting the path of an illegal parade based on scene dependence, which includes the following steps: Step 101: Obtain urban road network data, POI data and police station data, and perform preprocessing operations on the data; Step 102: According to Described urban road network data builds road network undirected graph; Step 103: POI (not including police station) and police station are constrained to road network; Step 104: Calculate different types of POI (not including police station), road section and police station Influence on illegal parades; Step 105: Use the averaging method to perform dimensionless processing on each index data; Step 106: Calculate the weight of different road sections, and construct a road network undirected graph G according to the calculated weight of the road section The arc segment weight matrix; step 107: dynamically predict the known path of the parade end point; step 108: dynamically predict the unknown path of the parade end point; step 109: dynamically update the path of the parade in real time.

Description

technical field [0001] The invention relates to the field of spatio-temporal data mining and public security, in particular to a method for dynamic prediction of illegal parade paths based on scene dependence. Background technique [0002] Illegal parade is a sudden group activity that endangers public safety and disrupts social order. Illegal demonstrations are generally non-spontaneous events with a certain organizational structure. Participants in illegal parades generally gather in specific public places within a certain period of time, and carry out a certain scale of crowd movement along the main roads of the city. During the process of parade activities, conflicts are prone to occur, which are destructive to a certain extent and affect normal social life. Practice has proved that the main participants of the illegal parade activities will carry out certain preparations in advance, and under the instigation of the organizers, there will be echoers during the parade p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/04G06F16/29G06Q50/26
CPCG06Q10/04G06Q50/265G06F16/29
Inventor 邓敏陈袁芳徐亮石岩刘宝举罗靓蔡建南
Owner CENT SOUTH UNIV
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