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Investigating Cost-effective RF-based Detection of Drones 研究具有成本效益的基于射频的无人机检测
Phuc Nguyen, M. Ravindranathan, Anh Nguyen, Richard O. Han, Tam N. Vu
Beyond their benign uses, civilian drones have increasingly been used in problematic ways that have stirred concern from the public and authorities. While many anti-drone systems have been proposed to take them down, such systems often rely on a fundamental assumption that the presence of the drone has already been detected and is known to the defender. However, there is a lack of an automated cost-effective drone detection system. In this paper, we investigate a drone detection system that is designed tao autonomously detect and characterize drones using radio frequency wireless signals. In particular, two technical approaches are proposed. The first approach is active tracking where the system sends a radio signal and then listens for its reflected component. The second approach is passive listening where it receives, extracts, and then analyzes observed wireless signal. We perform a set of preliminary experiments to explore the feasibility of the approaches using WARP and USRP software-defined platforms. Our preliminary results illustrate the feasibility of the proposed system and identify the challenges for future research.
除了良性用途之外,民用无人机越来越多地被用于有问题的用途,引起了公众和当局的关注。虽然已经提出了许多反无人机系统来击落它们,但这些系统通常依赖于一个基本假设,即无人机的存在已经被检测到,并且防御者已经知道了。然而,缺乏一种具有成本效益的自动化无人机检测系统。在本文中,我们研究了一种无人机检测系统,该系统设计用于使用射频无线信号自主检测和表征无人机。特别提出了两种技术方法。第一种方法是主动跟踪,即系统发送无线电信号,然后监听其反射成分。第二种方法是被动监听,它接收、提取,然后分析观察到的无线信号。我们进行了一组初步实验,以探索使用WARP和USRP软件定义平台的方法的可行性。我们的初步结果说明了所提出的系统的可行性,并确定了未来研究的挑战。
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引用次数: 139
UAV Multilevel Swarms for Situation Management 无人机多级蜂群态势管理
M. Rosalie, Grégoire Danoy, P. Bouvry, S. Chaumette
The development and usage of Unmanned Aerial Vehicles (UAVs) quickly increased in the last decades, mainly for military purposes. Nowadays, this type of technology is used in non-military contexts mainly for civil and environment protection: search & rescue teams, fire fighters, police officers, environmental scientific studies, etc. Although the technology for operating a single UAV is now mature, additional efforts are still necessary for using UAVs in fleets (or swarms). This position paper presents the ASIMUT project (Aid to SItuation Management based on MUltimodal, MUltiUAVs, MUltilevel acquisition Techniques). The challenges of this project consist of handling several fleets of UAVs (swarms) including communication, networking and positioning aspects. This motivates the development of novel multilevel cooperation algorithms which is an area that has not been widely explored, especially when autonomy is an additional challenge. Moreover, we will provide techniques to optimize communications for multilevel swarms. Finally, we will develop distributed and localized mobility management algorithms that will cope with conflicting objectives such as connectivity maintenance and geographical area coverage.
无人驾驶飞行器(uav)的发展和使用在过去几十年中迅速增加,主要用于军事目的。如今,这种类型的技术主要用于非军事环境,主要用于民用和环境保护:搜救队,消防员,警察,环境科学研究等。虽然操作单个无人机的技术现在已经成熟,但是在编队(或蜂群)中使用无人机仍然需要额外的努力。本文介绍了ASIMUT项目(基于多模式、多无人机、多水平采集技术的态势管理辅助)。该项目的挑战包括处理多个无人机舰队(蜂群),包括通信、网络和定位方面。这激发了新的多层协作算法的发展,这是一个尚未广泛探索的领域,特别是当自治是一个额外的挑战时。此外,我们将提供优化多层次群体通信的技术。最后,我们将开发分布式和本地化的移动性管理算法,以应对连接维护和地理区域覆盖等相互冲突的目标。
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引用次数: 11
A Security Framework for a Drone Delivery Service 无人机送货服务的安全框架
Seung-Hyun Seo, Jongho Won, E. Bertino, Yousung Kang, Dooho Choi
Delivery drones are unmanned aerial vehicles (UAV) utilized to transport packages, food, medicine, or other goods. With high demand for a prompt and efficient delivery, a drone delivery system can be an effective solution for timely deliveries and especially for emergency management. However, current delivery drone systems lack crucial security functions. Drones may have to operate in unsupervised hostile areas, and therefore be vulnerable to physical capture in addition to conventional cyber attacks. A captured drone can be analyzed by a white-box attack model in which the attacker has full control over the execution environment of cryptographic modules in static and dynamic methods including all side-channel information. In this paper, we propose and evaluate a security framework which utilizes white-box cryptography in order to protect critical data and cryptographic keys in delivery drones from white-box attacks. The experimental results show that the proposed framework is cost effective in terms of resource usage and thus is suitable even for resource-limited UAV.
送货无人机是用于运输包裹、食品、药品或其他货物的无人驾驶飞行器(UAV)。由于对快速高效的送货要求很高,无人机送货系统可以成为及时送货,特别是应急管理的有效解决方案。然而,目前的送货无人机系统缺乏关键的安全功能。无人机可能必须在无人监督的敌对地区操作,因此除了常规的网络攻击外,还容易受到物理捕获。捕获的无人机可以通过白盒攻击模型进行分析,攻击者可以通过静态和动态方法完全控制加密模块的执行环境,包括所有的侧信道信息。在本文中,我们提出并评估了一个利用白盒加密的安全框架,以保护无人机中的关键数据和加密密钥免受白盒攻击。实验结果表明,该框架在资源利用方面具有成本效益,甚至适用于资源有限的无人机。
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引用次数: 32
Autonomous Mobile Drone Mesh Networks 自主移动无人机网状网络
K. Lin
The popularity of drones has grown rapidly, and this increasing popularity has inspired numerous attractive applications, such as aerial photography, environment monitoring, rescue, tracking, and terrain modeling. Most of existing applications, however, still rely on single or multiple drones operating independently. One might look forward to more exciting applications if multiple drones can form clusters and cooperate with each other to broaden their coverage and capability. A practical challenge is how to connect those drones as a self-organizing wireless network as they move to accomplish the assigned task and change the topology dynamically over time. Mesh networks is usually thought of a preferable choice as a self-organizing structure because of its scalability, reliability, efficiency and low maintenance cost as compared to ad-hoc networks. However, traditional mesh networks are usually constructed as a fixed infrastructure that serves mobile devices locating nearby. Such a static infrastructure can hardly support drones, which are usually highly dynamic and fly around a large terrain. In this talk, I will introduce a new class of mesh networks called Autonomous Mobile Mesh Network (AMMNET). Unlike conventional meshes, the mobile mesh nodes of an AMMNET are capable of following the drones in the application terrain, while organizing themselves into a suitable network topology to ensure good connectivity. AMMNET's mobile infrastructure can hence serve highly-dynamic drones and enable reliable team collaboration.
无人机的普及迅速增长,这种日益普及的启发了许多有吸引力的应用,如航空摄影,环境监测,救援,跟踪和地形建模。然而,大多数现有的应用仍然依赖于单个或多个无人机独立运行。如果多架无人机能够形成集群并相互合作以扩大其覆盖范围和能力,人们可能会期待更多令人兴奋的应用。一个实际的挑战是如何将这些无人机连接成一个自组织的无线网络,当它们移动完成分配的任务并随时间动态改变拓扑结构时。与ad-hoc网络相比,Mesh网络通常被认为是自组织结构的优选,因为它具有可伸缩性、可靠性、效率和低维护成本。然而,传统的网状网络通常被构建为一个固定的基础设施,为附近的移动设备提供服务。这种静态的基础设施很难支持无人机,因为无人机通常是高度动态的,在很大的地形上飞行。在这次演讲中,我将介绍一类新的网状网络,称为自主移动网状网络(AMMNET)。与传统网格不同,AMMNET的移动网格节点能够在应用地形中跟随无人机,同时将自己组织成合适的网络拓扑结构,以确保良好的连通性。因此,AMMNET的移动基础设施可以为高动态无人机提供服务,并实现可靠的团队协作。
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引用次数: 0
PI in the Sky 天空中的PI
Jongwon Yoon, Peng Liu, Suman Banerjee, SangHyeog Kim
We explore a new application domain; live streaming service with aerial vehicles, drone. The performance of real-time streaming application highly affected by the variant wireless network. To provide stable and satisfactory streaming service, we propose real-time video transcoding solution. Our system uses channel-aware approach to realize efficient video bitrate adaptation for broadcasting live stream. We implement hardware-assisted video transcoding on a single-board computer, Raspberry Pi, and mount it on the drone for live streaming application.
我们探索一个新的应用领域;有无人机的直播服务。无线网络的变化对实时流媒体应用的性能影响很大。为了提供稳定、满意的流媒体服务,我们提出了实时视频转码解决方案。我们的系统采用通道感知的方法来实现高效的视频比特率自适应直播。我们在单板计算机Raspberry Pi上实现硬件辅助视频转码,并将其安装在无人机上用于直播应用程序。
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引用次数: 1
Drones in the Smart City and IoT: Protocols, Resilience, Benefits, and Risks 智慧城市和物联网中的无人机:协议、弹性、收益和风险
J. Sterbenz
Drones have quickly become ubiquitous for both recreational and serious use. As is frequently the case with new technology in general, their rapid adoption already far exceeds our legal, policy, and social ability to cope with such issues as privacy and interference with well-established commercial and military air space. While the FAA has issued rulings, they will almost certainly be challenged in court as disputes arise, for example, when property owners shoot drones down. It is clear that drones will provide a critical role in smart cities and be connected to, if not directly a part of the IoT (Internet of Things). Drones will provide an essential role in providing network relay connectivity and situational awareness, particularly in disaster assessment and recovery scenarios. As is typical for new network technologies, the deployment of the drone hardware far exceeds our research in protocols -- extending our previous understanding of MANETs (mobile ad hoc networks) and DTNs (disruption tolerant networks) -- and more importantly, management, control, resilience, security, and privacy concerns. This keynote address will discuss these challenges and consider future research directions.
无论是娱乐用途还是严肃用途,无人机都迅速变得无处不在。正如一般新技术经常出现的情况一样,它们的迅速采用已经远远超出了我们处理隐私和干扰已建立的商业和军事空域等问题的法律、政策和社会能力。尽管美国联邦航空局已经发布了裁决,但随着争议的出现,这些裁决几乎肯定会在法庭上受到质疑,例如,当业主击落无人机时。很明显,无人机将在智慧城市中发挥关键作用,即使不是直接成为物联网(IoT)的一部分,也会与之相连。无人机将在提供网络中继连接和态势感知方面发挥重要作用,特别是在灾难评估和恢复场景中。作为典型的新网络技术,无人机硬件的部署远远超出了我们对协议的研究——扩展了我们以前对manet(移动自组织网络)和dtn(中断容忍网络)的理解——更重要的是,管理、控制、弹性、安全和隐私问题。本主题演讲将讨论这些挑战并考虑未来的研究方向。
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引用次数: 14
Enhancing TV White-Spaces Database with Unmanned Aerial Scanning Vehicles (UASVs) 利用无人机扫描机(uasv)增强电视空白数据库
A. Trotta, L. Bedogni, M. D. Felice, L. Bononi, E. Natalizio
After the digital TV switch-over, national spectrum regulators are considering opportunistic spectrum access techniques in the TV White Spaces (TVWS) frequency band. At present, the reference solution envisages the utilization of geolocation spectrum databases (GLDBs), in which spectrum availability is computed through complex propagation models. However, recent studies indicate that the used path loss model in GLDBs could be either inaccurate or too much conservative, possibly reducing the use of TVWS for opportunistic use by secondary networks. In this paper, we investigate the possibility to enhance the estimation accuracy of GLDBs with sensing reports produced by a swarm of Unmanned Aerial Scanning Vehicles (UASVs). These latter are able to explore the scenario in both space and frequencies, and to build a fine-grained shadowing map which can be used to tune the accuracy of propagation model used by GLDB. A novel distributed mobility algorithm is described for the sensing coverage of the scenario, and an aggregation mechanism for the map creation is illustrated. Simulation results confirm the effectiveness of our scheme in terms of TVWS detection accuracy and scenario coverage issues.
数字电视转换后,国家频谱监管机构正在考虑在电视白色空间(TVWS)频段的机会性频谱接入技术。目前,参考方案设想利用地理定位频谱数据库(gldb),其中频谱可用性通过复杂的传播模型计算。然而,最近的研究表明,在gldb中使用的路径损耗模型要么不准确,要么过于保守,这可能会减少二次网络对TVWS的使用。在本文中,我们研究了利用一群无人机扫描飞行器(uasv)产生的传感报告来提高gldb估计精度的可能性。后者能够在空间和频率上探索场景,并构建一个细粒度的阴影映射,该映射可用于调整GLDB使用的传播模型的准确性。描述了一种新的分布式移动算法,用于场景的感知覆盖,并说明了地图创建的聚合机制。仿真结果验证了该方案在TVWS检测精度和场景覆盖方面的有效性。
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引用次数: 0
Model-based Real-time Testing of Drone Autopilots 无人机自动驾驶仪基于模型的实时测试
Andrea Patelli, L. Mottola
Key to the operation of robot drones is the autopilot software that realizes the low-level control. The correctness of autopilot implementations is currently mainly verified based on simulations. These may overlook the timing aspects of control loop executions, which are however fundamental to dependable operation. We report on our experience in applying model-based real-time testing to Ardupilot, a widely adopted autopilot. We describe our approach at deriving a model of Ardupilot's core functionality and at reducing the model to enable practical testing. Our work reveals that Ardupilot may fail in meeting the time constraints associated to critical functionality, such as enabling fail-safe operation. Through controlled experiments, we demonstrate the real-world occurrence of such erroneous executions.
机器人无人机运行的关键是实现底层控制的自动驾驶软件。目前主要是通过仿真来验证自动驾驶仪实现的正确性。这些可能忽略了控制回路执行的定时方面,然而,这是可靠运行的基础。我们报告了我们将基于模型的实时测试应用于广泛采用的自动驾驶仪Ardupilot的经验。我们描述了我们在推导Ardupilot的核心功能模型和减少模型以实现实际测试的方法。我们的工作表明,Ardupilot可能无法满足与关键功能相关的时间限制,例如启用故障安全操作。通过对照实验,我们证明了这种错误执行在现实世界中的发生。
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引用次数: 17
Towards Single-Failure-Tolerant Multicopters 迈向单故障容忍度多旋翼机
David Mirk, A. Janecek, H. Hlavacs
The increasing use of multicopters and other unmanned aerial vehicle (UAV) systems has caused the need for appropriate security measures. Such measures are usually country-specific and differ significantly from each other. In Europe, several national aviation regularities have implemented national registration processes whose non-compliance constitutes a violation of law and may be prosecutable. In this paper we summarize briefly the current situation regarding UAV licensing in Europe, and then present a self-developed redundancy board that was required by Austria's national aviation agency Austro Control to get the license for flying over densely populated areas. The redundancy board is capable of automatically switching between two built-in flight controllers in case of problems of the primary flight controller. We present the board and its inner workings.
越来越多地使用多旋翼飞机和其他无人驾驶飞行器(UAV)系统导致需要采取适当的安全措施。这些措施通常是针对具体国家的,彼此差别很大。在欧洲,一些国家航空规则执行了国家登记程序,不遵守这些程序即构成违法,可受到起诉。本文简要总结了欧洲无人机许可的现状,然后介绍了自行开发的冗余板,该冗余板是奥地利国家航空机构Austro Control要求的,以获得在人口稠密地区飞行的许可证。当主飞行控制器出现问题时,冗余板能够在两个内置飞行控制器之间自动切换。我们介绍董事会及其内部运作。
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引用次数: 0
Virtual Space Boxes and Drone-as-Reference-Station Localisation for Drone Services: an Approach Based on Signal Strengths 无人机服务的虚拟空间盒和无人机作为参考站定位:基于信号强度的方法
S. Loke, Majed M. Alwateer, V. Don
This paper proposes and discusses two key concepts for controlling the movement of drones in the context of providing drone services: the use of virtual space boxes (a 3D finer-grained analogue to geofencing) and drone-as-reference-station localization. We outline our initial prototype and experimentation with these concepts.
本文提出并讨论了在提供无人机服务的背景下控制无人机运动的两个关键概念:使用虚拟空间盒(3D细粒度模拟地理围栏)和无人机作为参考站定位。我们概述了我们最初的原型和实验与这些概念。
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引用次数: 15
期刊
Proceedings of the 2nd Workshop on Micro Aerial Vehicle Networks, Systems, and Applications for Civilian Use
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