检索结果-南通市图书馆

Monocular Distance Estimated Based on PTZ Camera

Computers, Materials & Continua 2024年第5期79卷 3417-3433页

作者： Qirui Zhong Xiaogang Cheng Yuxin Song Han Wang Bell Honors School Nanjing University of Posts and Telecommunications Nanjing210003China College of Telecommunications and Information Engineering Nanjing University of Posts and TelecommunicationsNanjing210003China College of Automation and College of Artificial Intelligence Nanjing University of Posts and TelecommunicationsNanjing210003China

This paper introduces an intelligent computational approach for extracting salient objects fromimages and estimatingtheir distance information with PTZ (Pan-Tilt-Zoom) cameras. PTZ cameras have found wide applications innumerous public places, serving various purposes such as public securitymanagement, natural disastermonitoring,and crisis alarms, particularly with the rapid development of Artificial Intelligence and global infrastructuralprojects. In this paper, we combine Gauss optical principles with the PTZ camera’s capabilities of horizontal andpitch rotation, as well as optical zoom, to estimate the distance of the object.We present a novel monocular objectdistance estimation model based on the Focal Length-Target Pixel Size (FLTPS) relationship, achieving an accuracyrate of over 95% for objects within a 5 km range. The salient object extraction is achieved through a simplifiedconvolution kernel and the utilization of the object’s RGB features, which offer significantly faster computingspeeds compared to Convolutional Neural Networks (CNNs). Additionally, we introduce the dark channel beforethe fog removal algorithm, resulting in a 20 dB increase in image definition, which significantly benefits distanceestimation. Our system offers the advantages of stability and low device load, making it an asset for public securityaffairs and providing a reference point for future developments in surveillance hardware.

关键词： public security location information PTZ camera image processing

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Exploration of Influencing Factors of public security

引用

Journal of Landscape Research 2022年第4期14卷 33-38页

作者： SUN Shuai GAO Debin LI Ziying North China University of Technology Beijing 100144China

Taking 5 types of cases affecting public security in District B of City A as the main research objects,this study explored the significant differences in the factors that influence the occurrence of the cases in different cases.The paper collected cases from 2018 to 2020 in the study area,extracted effective information through BML,combined cluster analysis and OLS analysis,and analyzed the factors that generate cases according to environmental behaviors and criminal geography.It was concluded that case occurrence and influencing factors were correlated in District B of City A.

关键词： public security Case Influencing factors

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Implementation of a Comprehensive Information Management Platform for public security Based on Java Technology

引用

计算机科学与技术汇刊（中英文版） 2023年第1期10卷 11-16页

作者： Jin Xue Yali Yuan Hebei North University ZhangjiakouHebei075000China

Due to the rapid development of electronic information technology,the development of Internet technology and system software development technology has become more and more common.Especially,along with the development of public security,there are more and more provisions for standard administrative department management system,improving office efficiency and enhancing decision encouragement.Therefore,it is of great practical value to design and complete a comprehensive public security business information system.Based on java technology,this paper designs and builds a comprehensive information management platform for public security through the analysis of comprehensive public security business,and also gets good feedback during the actual test,which confirms the feasibility of the system.

关键词： public security Comprehensive Business Information System Java Workflow Web Information security

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

The COVID-19 and the“European Solution”of Data-based Approach to Governance:public security or Data Protection?

引用

The Journal of Human Rights 2022年第3期21卷 483-503页

作者：刘洋李益斌 NIU Huizi(Translated) School of Marxism Lanzhou University Institute of Central Asian Studies and the School of Politics and International Relations Lanzhou University 不详

To cope with the challenges of CoViD-19,europe has adopted relevant measures of a data-based approach to governance,on which scholars have huge differences,and the related researches are conducive to further discussion on the differences.By sorting out the challenges posed by the pandemic to public security and data protection in europe,we can summarize the“european Solution”of the data-based approach to governance,including legislation,instruments,supervision,international cooperation,and continuity.The“Solution”has curbed the spread of the pandemic to a certain extent.However,due to the influence of the traditional values of the EU,the“Solution”is too idealistic in the balance between public security and data protection,which intensifies the dilemma and causes many problems,such as ambiguous legislation,inadequate effectiveness and security of instruments,an arduous endeavor in inter national cooperation,and imperfect regulations on digital green certificates.Therefore,in a major public health crisis,there is still a long way to go in exploring a balance between public security and data protection.

关键词： European solution data-based approach to governance data protection public security

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Research on Management of Social public security in China

Research on Management of Social Public Security in China

引用

2007 International Conference on public Administration（ICPA 3rd）

作者： WU Man-yi CHANG Ning School of Political Science and public Administration University of Electronic Science and Technology of China

With the rapid development of society,problems on social public security become vital and prominent day after day,which calls for much more attention to its management.Via the discussion on the basic questions about management of social public security (MSPS) and analysis on its definition,features and construction,this article puts forward some technical frames and methods can be carried out in management process

关键词： Society public security Management

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

public security Early Warning Model Based on Crime Hot Spot

Public Security Early Warning Model Based on Crime Hot Spot

引用

作者： Juan LUO Jian-ying XIONG Jiangxi Police College

Crimes have specific distribution characteristics in time, space. It is very important for the public security department to pay attention to and analyze the crime hot spots, especially for the daily life of citizens. This work designs an early warning system for the police and public people through displaying the traditional crime data in a multi-dimensional visual. The dynamic way in time and space is conducive to assisting the decision-making of public security protection. It generated early warning information according to the hot spot map, assisted dispatch police force distribution, and improve the execution of public security work. According to the hot data of crime, it can help to prompt the public security situation and improve personal safety protection awareness based on LBS technology.

关键词： public security Crime hot spots Early warning Police force distribution

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

The Routine and Emergency Coordinated Management of public security

引用

Frontiers of Engineering Management 2015年第4期2卷 331-338,393-394页

作者： Ning Liu The Ministry of Water Resources of the People’s Republic of China

The paper presents a study based on the observation of public security programme situations.Nowadays, public security management is faced with challenges such as the increase in non-traditional safety threats, high occurrence probability, obvious complex chain reactions, high security demand, vulnerable bearing systems and world-wide influences. For the new adapted requirements of public security management, this paper puts forward the concept of the coordinated routine and emergency management, which combines the routine management at normal status and the emergency management at the abnormal status based on the whole process of public security management. This paper analyzes the coordinated management system and establishes the decision-making objectives, decision-making model and constraints. In addition, this paper proposes the basic strategy of achieving the coordinated management of public security.

关键词： public security routine management emergency management coordinated management

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Visualized uranium rapid monitoring system based on self-enhanced electrochemiluminescence-imaging of amidoxime functionalized polymer nanoparticles

引用

Chinese Chemical Letters 2022年第7期33卷 3456-3460页

作者： Ziyu Wang Hang Gao Peng Liu Xinqi Wu Qian Li Jing-Juan Xu Daoben Hua State Key Laboratory of Radiation Medicine and Protection School for Radiological and Interdisciplinary Sciences(RAD-X)Soochow UniversitySuzhou 215123 China State Key Laboratory of Analytical Chemistry for Life Science School of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210023China Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions Soochow UniversitySuzhou 215123China

The development of uranyl ion detection technology has exhibited its significance in public security and environmental fields for the radioactivity and chemical toxicity of uranyl ion.The WHO standard of uranyl ion makes it necessary to develop highly sensitive uranyl rapid warning system in drinking water monitoring.Herein,a visualized rapid warning system for trace uranyl ion is carried out based on electrochemiluminescence(ECL) imaging technology to give an ultra-low limit of detection(LOD) and high selectivity.Amidoxime,a bi-functional group with both uranyl ion capturing and co-reactive functions,is modified on a conjugated polymer backbone with strong ECL signal to be prepared into three-in-one polymer nanoparticles(PNPs) with self-enhanced ECL property.The captured uranyl ion can enhance the ECL signal of PNPs via resonance energy transfer process to give the LOD as 0.5 ng/L,which is much lower than the known luminescent uranyl sensors.Furthermore,ECL imaging technology is introduced into realizing visualized uranyl rapid warning,and can be successfully applied on natural water samples.This study provides a novel strategy for uranyl rapid warning,and shows its potential meaning in public security and environmental fields.

关键词： Visualized monitoring Electrochemiluminescence Amidoxime Uranium public security

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

我国大型体育赛事公共安全面临的问题及应对机制

引用

体育 2008年第10期 14-17页

作者：孙麒麟张建新

在阐述大型体育赛事建立公共安全应对体系必要性的基础上，分析了我国大型体育赛事公共安全所面临的现行公共安全应急法制不健全、公众安全意识淡薄、经济和社会转型带来的风险、公共安全信息管理系统有待完善等问题，并从建立大型体育... 详细信息

在阐述大型体育赛事建立公共安全应对体系必要性的基础上，分析了我国大型体育赛事公共安全所面临的现行公共安全应急法制不健全、公众安全意识淡薄、经济和社会转型带来的风险、公共安全信息管理系统有待完善等问题，并从建立大型体育赛事公共安全的预警机制、反馈机制、处理机制等3个方面提出了相关应对思路。

关键词：大型体育赛事公共安全预警机制 big sports event public security early warning mechanism

来源：人大复印报刊资料评论

在线全文

人大复印报刊资料

学校读者我要写书评

暂无评论

习近平总书记关于公安工作论述的理论维度解读

公安学

引用

公安学 2021年第3期

作者：苏忻

习近平总书记关于公安工作的论述是习近平新时代中国特色社会主义思想的公安篇。在公安事业发展站在了新的历史起点的大背景下，习近平总书记在对公安工作科学谋划、精心布局下作出了一系列重要论述，实现了马克思历史唯物主义、辩证唯... 详细信息

习近平总书记关于公安工作的论述是习近平新时代中国特色社会主义思想的公安篇。在公安事业发展站在了新的历史起点的大背景下，习近平总书记在对公安工作科学谋划、精心布局下作出了一系列重要论述，实现了马克思历史唯物主义、辩证唯物主义、国家理论、政党理论的有机统一，为新时代公安工作指明了方向，实现了党的公安工作指导理论的创新发展。

关键词：公安工作国家安全理论创新 public security national security social stability theoretical innovation

来源：人大复印报刊资料评论

在线全文

人大复印报刊资料

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：