A GIS-based Earthquake and Tsunami Emergency Command System for Seaside Cities

In this paper the geographical information system （GIS） is applied to earthquake and tsunami emergency work and an earthquake and tsunami emergency command system （ETECS） for seaside cities is developed which is composed of a basic database and six subsystems. By employing this system, the responsible municipal departments can make rapid prediction before the occurrence of earthquake or tsunami, make commanding decisions concerning the disaster-fight during the disastrous event, and make rapid estimates of the casualties and economic losses. So that the government could conduct relief work in time and planning for future disaster reduction and prevention.

A framework of force of information influence and application for C4KISR system

The subversive nature of information war lies not only in the information itself, but also in the circulation and application of information. It has always been a challenge to quantitatively analyze the function and effect of information flow through command, control, communications, computer, kill, intelligence,surveillance, reconnaissance (C4KISR) system. In this work, we propose a framework of force of information influence and the methods for calculating the force of information influence between C4KISR nodes of sensing, intelligence processing,decision making and fire attack. Specifically, the basic concept of force of information influence between nodes in C4KISR system is formally proposed and its mathematical definition is provided. Then, based on the information entropy theory, the model of force of information influence between C4KISR system nodes is constructed. Finally, the simulation experiments have been performed under an air defense and attack scenario. The experimental results show that, with the proposed force of information influence framework, we can effectively evaluate the contribution of information circulation through different C4KISR system nodes to the corresponding tasks. Our framework of force of information influence can also serve as an effective tool for the design and dynamic reconfiguration of C4KISR system architecture.

Command filtered integrated estimation guidance and control for strapdown missiles with circular field of view

In this paper,an integrated estimation guidance and control(IEGC)system is designed based on the command filtered backstepping approach for circular field-of-view(FOV)strapdown missiles.The threedimensional integrated estimation guidance and control nonlinear model with limited actuator deflection angle is established considering the seeker's FOV constraint.The boundary time-varying integral barrier Lyapunov function(IBLF)is employed in backstepping design to constrain the body line-of-sight(BLOS)in IEGC system to fit a circular FOV.Then,the nonlinear adaptive controller is designed to estimate the changing aerodynamic parameters.The generalized extended state observer(GESO)is designed to estimate the acceleration of the maneuvering targets and the unmatched time-varying disturbances for improving tracking accuracy.Furthermore,the command filters are used to solve the"differential expansion"problem during the backstepping design.The Lyapunov theory is used to prove the stability of the overall closed-loop IEGC system.Finally,the simulation results validate the integrated system's effectiveness,achieving high accuracy strikes against maneuvering targets.

Central Command Architecture for High-Order Autonomous Unmanned Aerial Systems

This paper is the first in a two-part series that introduces an easy-to-implement central command architecture for high-order autonomous unmanned aerial systems. This paper discusses the development and the second paper presents the flight test results. As shown in this paper, the central command architecture consists of a central command block, an autonomous planning block, and an autonomous flight controls block. The central command block includes a staging process that converts an objective into tasks independent of the vehicle (agent). The autonomous planning block contains a non-iterative sequence of algorithms that govern routing, vehicle assignment, and deconfliction. The autonomous flight controls block employs modern controls principles, dividing the control input into a guidance part and a regulation part. A novel feature of high-order central command, as this paper shows, is the elimination of operator-directed vehicle tasking and the manner in which deconfliction is treated. A detailed example illustrates different features of the architecture.

Key technologies and applications of intelligent dispatching command for high-speed railway in China

Purpose–The intelligent Central Traffic Control(CTC)system plays a vital role in establishing an intelligent high-speed railway(HSR)system.As the core of HSR transportation command,the intelligent CTC system is a new HSR dispatching command system that integrates the widely used CTC in China with the practical service requirements of intelligent dispatching.This paper aims to propose key technologies and applications for intelligent dispatching command in HSR in China.Design/methodology/approach–This paper first briefly introduces the functions and configuration of the intelligent CTC system.Some new servers,terminals and interfaces are introduced,which are plan adjustment server/terminal,interface for automatic train operation(ATO),interface for Dynamic Monitoring System of Train Control Equipment(DMS),interface for Power Supervisory Control and Data Acquisition(PSCADA),interface for Disaster Monitoring,etc.Findings–The key technologies applied in the intelligent CTC system include automatic adjustment of train operation plans,safety control of train routes and commands,traffic information data platform,integrated simulation of traffic dispatching and ATO function.These technologies have been applied in the Beijing-Zhangjiakou HSR,which commenced operations at the end of 2019.Implementing these key intelligent functions has improved the train dispatching command capacity,ensured the safe operation of intelligent HSR,reduced the labor intensity of dispatching operators and enhanced the intelligence level of China’s dispatching system.Originality/value–This paper provides further challenges and research directions for the intelligent dispatching command of HSR.To achieve the objectives,new measures need to be conducted,including the development of advanced technologies for intelligent dispatching command,coping with new requirements with the development of China’s railway signaling system,the integration of traffic dispatching and train control and the application of AI and data-driven modeling and methods.

Could Military Commanders’ Good LeadershipInfluence Subordinates’ Smartphone Overdependence? A Serial Mediation Analysis

Owing to the ubiquitous use of smartphones by soldiers, military researchers have an increasing interest in potentially problematicside effects such as smartphone overdependence. This raises a question regarding the psychological mechanisms underlying thepotentially self-damaging use of smartphones. Here, we address this question by analyzing how heterogeneity in commander’sgood leadership explains subordinate soldiers’ differences in self-control and smartphone use. Specifically, we found thatsubordinate soldiers who thought their commander's leadership was good were self-regulated, less dependent on smartphones,less stressed, and finally had good mental health. This result indicates that commander’s good leadership can be used toestimate whether subordinate soldiers exert control over their impulses and use their smartphones properly. Thus, the currentfindings help to identify external factors that lead to a better understanding of problematic smartphone use and can potentiallyhelp to design appropriate preventive mechanisms or interventions that target commander’s good leadership.

Tianjin Earthquake Emergency Command Technical System Composition And The Working Process

This paper introduced the composing and frame on the Tianjin earthquake emergency command technical system.It introduced the central function and the technical target.It evaluated the emergency and the applying prospect on the system.

EWS收购Command Tooling Systems公司

近日，EWS Weigele机床有限责任公司宣布，收购了美国的Command Tooling Systems公司。据EWS公司介绍，这家位于美国Minneapolis市的机床生产厂共有75名员工，生产车间面积5000m^2，是美国技术领先的铣床加工系统，铣、镗加工解决方案的供应商。EWS公司是一家在全球范围内从事车铣加工中心刀具系统生产制造的企业，在韩国拥有目己的生产基地，在法国拥有自己的授权销售代理商，在中国的上海有一个售后服务中心。

C2SIM互操作标准发展关键问题研究

针对联合作战信息交换需求和多军兵种作战数据互联互通问题,采用指挥控制系统与仿真系统之间交互性标准(command and control systems-simulation systems interoperation,C2SIM)标准指导实现指挥控制系统、仿真系统和无人系统之间的高效互操作。概述C2SIM的地位、作用和开发概况;介绍C2SIM逻辑数据模型开发方法;从C2SIM核心本体、领域本体扩展、本体到XML Schema的转换和参考实现等方面,分析C2SIM的关键技术问题;探讨C2SIM标准在北约近年中实兵演习中的应用情况;总结C2SIM的发展和影响,为我军标准化互操作技术的构建提供方法和技术上的启发和借鉴。结果表明,该研究可有效提高军事信息系统的开发能力和质量。

冬奥会态势感知与运行指挥系统研究

全面保障北京冬奥会的安全运行面临3大核心问题:城市和赛事运行风险耦合关联辨识难、城市运行和疫情全局时空风险监测难、三区办赛和部门协同跨区域指挥保障难。为突破耦合风险辨识难题,构建冬奥会链式耦合风险评估技术,揭示耦合风险的传导放大机制,填补大型活动全局风险辨识的技术空白;为攻克风险时空监测难题,建立城市运行域关键生命线保障大数据监测预警模型,开发社交接触域的疫情传播风险分析技术;为解决协同指挥保障难题,首创“数据+任务”联合驱动的指挥模式,建立混合现实可视化和协同会商系统。并以张家口赛区过暖融雪预警作为具体案例详细展示系统的实际应用效果。研究相关成果为冬奥会提供了坚实的安全保障,同时为其他大型活动和城市安全建设提供重要参考。

指挥信息系统韧性度量评估研究

指挥信息系统是现代战争体系的中枢,度量指挥信息系统的韧性,可以评估其在面对不确定性攻击扰动下的系统性能及作战能力,更好地保障作战任务的完成。分析了指挥信息系统韧性度量指标体系。针对指挥信息系统的网络化、面临威胁种类的多样化和作战任务的动态化等特征,从网络拓扑结构性质、威胁场景试验驱动以及作战任务完成能力等不同视角,总结归纳了当前指挥信息系统韧性度量评估方法,在此基础上进行深入分析和评述。考虑指挥信息系统的特点和发展趋势,指出未来指挥信息系统韧性度量评估值得关注的研究方向。

预警机装备形态演变的新特征

自1945年投入使用以来,预警机装备经过近80年的发展,其在作战体系和杀伤链构建中,经历了从低空补忙雷达向空中C2节点的转变。现今,一方面,有人预警机的核心节点作用愈发凸显,主要担负空战场管理任务;另一方面,无人化预警机形态正在加速出现,重点发挥预警探测而不是指挥控制作用,作为有人预警机的重要补充。在产品形态上,未来的预警机将具备敏捷性、协同性以及自主性等重要特征。

面向韧性的指挥信息系统节点重要性度量方法

为增强指挥信息系统韧性,提升资源使用效费比,必须把有限资源投入到对系统韧性影响最为显著的重要节点上。分析指挥信息系统韧性过程,以攻击发生后指挥信息系统在规定恢复时间内的平均功能水平来评估其韧性;建立指挥信息系统模型和节点模型,根据各个节点韧性增加/减少相同比率时,对系统韧性的影响程度来度量节点重要性,提出基于蒙特卡罗仿真的节点重要性计算方法;通过仿真实验对指挥信息系统韧性过程,节点重要性度量方法及其性能、应用场景等进行验证。实验结果表明,该度量方法能有效区分指挥信息系统节点的重要性,且在单调性和精确性方面具有一定优势,可应用于指挥信息系统规划设计、运维管理、应急抢修等阶段的韧性增强。

带有指令滤波的电力弹簧系统反步控制

针对新能源发电系统因间接性和不确定性导致的电压波动问题,文中首次将反步控制策略应用于电力弹簧(electric spring,ES)系统,并提出一种带有指令滤波的ES反步控制策略。根据ES的数学模型利用反步法设计控制器,并加入指令滤波器,以解决ES反步控制中的计算膨胀问题,同时设计误差补偿信号,并利用Lyapunov稳定性理论验证系统稳定性。通过仿真模拟新能源发电系统网侧电压波动时,ES对关键负载(critical load,CL)电压稳定的效果,以及不同系统参数对文中控制策略的敏感性分析。与传统的比例积分(proportional-integral,PI)控制对比,CL电压动态响应速度提高0.07 s,CL电压畸变率降低31%,参数敏感性分析中CL电压最大偏差率为0.318%,能承受的最大电压幅值波动范围提高52.9 V。仿真结果验证了文中所提出的控制策略具有响应速度快、谐波含量低、抗干扰能力强的优势。

美国海军海洋学业务体系概述

美国海军海洋学通过对海洋环境的观测和预报,为海上军事行动提供评估和决策。本文详细梳理负责海洋学业务的美国海军气象海洋司令部及其下属的四级和五级指挥部业务体系。以美国海军海洋学业务部门参加一次军事演习为例,阐述各业务部门的职责。最后,对军事海洋学的发展提出了意见建议。

基于G71外圆粗车复合循环指令的对刀原理

以CJK6032教学型数控车床车削轴肩为例,针对常用的G71外圆粗车复合循环指令的使用特点及工件坐标系与机床坐标系的转换关系,详细论述了该指令的数控编程方法及对刀原理,为提高数控编程效率及加工精度、掌握对刀技巧提供参考。

关于消防救援指挥体系建设的思考

改革转隶后,国家综合性消防救援队伍的职能定位从传统的消防监督、火灾扑救为主向应对“全灾种、大应急”拓展。为进一步适应新形势下应急救援任务需要,提升消防救援队伍作战能力素养,健全队伍“灭大火、打大仗”的能力,本文以消防救援指挥体系为研究对象,对当前消防救援指挥体系现状及问题进行分析研究,提出了牢固树立“全灾种、大应急”意识、强化信息化手段应用、多途径缓解执勤压力、推动灭火救援岗位职业资格认定、科学制定力量编成、探索推行专业指挥模式6项对策,为消防救援队伍指挥体系建设提供一定的理论支撑。

美军联合全域指挥与控制的投资

阐述美军联合全域指挥与控制(JADC2)的概念内涵、当前工作内容以及未来发展方向。结合美国国防部2024财年预算请求及Govini公司研究报告,进一步介绍JADC2支出的核算方法,并系统解析美国在JADC2上的资金投入和市场情况、美军联合全域指挥与控制当前面临的挑战。当前,全球安全环境正在发生飞速变化,局部冲突时有发生,搜集、解析和传递信息以保持决策优势的能力将是主导战争胜负的关键。美国国防部提出JADC2战略,旨在构建一个在战场上可以将各部门互联互通的安全网络,以期实现所有战域之间的充分、实时的信息交换。目前美国通过技术研发、合作演习等方式在各个层面积极推动JADC2的建设,并已取得一定阶段性成果。

耦合相变储能的火电机组集成系统控制策略优化及效果分析

提升火电机组调峰调频能力是构建新型电力系统的重要举措。该文从锅炉-汽轮机能流解耦角度出发,设计抽取部分中压缸排汽进行储热的相变储能系统,与火电机组耦合后形成机-炉-储集成系统,提出重构机-炉-储三主体负荷指令的控制策略,并以某660 MW(P_(e0)=660 MW)超超临界机组为例进行效果评估。考虑中压缸排汽参数后,选取融化温度为117.7℃的赤藓糖醇为储能材料,研究抽汽比例对机组降负荷性能的影响。结果表明:当中压缸排汽的抽汽比例由0.00变为0.85时,机组等效降负荷速率由2.00%P_(e0)/min提升至5.13%P_(e0)/min,柔性明显增强;储能系统中储热量最大为118.73 GJ,储(火用)量最大为28.97 GJ;负荷指令重构后,系统瞬态过程中热效率增加,最大增加了1.85%,(火用)效率降低,最大降低了2.23%。

基于复杂网络的防空反导体系拓扑特性

信息技术和军用物联网技术的发展不断推动着作战样式的变革,网络复杂性正逐渐成为研究的重要问题之一。基于复杂网络理论,构建防空反导网络模型,并对网络模型的拓扑特性进行仿真分析。结果表明,防空反导网络模型具有较大的平均集群系数和较小的平均路径长度,符合小世界特性,且网络效能系数与网络模型结构有较大关系。仿真结果对防空反导网络模型的建立并揭示其内部机理具有一定的理论意义。