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2016 22nd International Conference on Automation and Computing (ICAC)最新文献

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Consensus with relative-state-dependent noises in time-varying networks 时变网络中状态相关噪声的一致性
Pub Date : 2016-09-01 DOI: 10.1109/IConAC.2016.7604910
Bo Wang, Yu-Ping Tian
This paper studies the consensus problem of discrete-time multi-agent systems with relative-state-dependent (RSD) measurement noises. Firstly, consensus is analyzed for noise-free systems under the switching topologies. Then, under a martingale-difference assumption on the noises, it is proved that, by giving a small distributed control gain, the mean square (m.s.) and almost sure (a.s.) consensus can be obtained for a class of switching topology satisfying the uniformly rooted (UR) and “period” assumption. Besides, a sufficient condition to guarantee the m.s. and a.s. consensus is given if the switching topology is UR and union-mode-finite (UMF). We also analyze the statistic properties of the final consensus point. Numerical examples are given to illustrate the effectiveness of the results.
研究了具有相对状态相关测量噪声的离散多智能体系统的一致性问题。首先,分析了切换拓扑下无噪声系统的一致性。然后,在噪声的鞅差分假设下,证明了对于一类满足一致根(UR)和周期假设的开关拓扑,通过给定较小的分布控制增益,可以获得均方(m.s.)和几乎确定(a.s.)一致性。此外,给出了交换拓扑为UR和联合模有限(UMF)时,保证m.s.和a.s.一致性的充分条件。我们还分析了最终共识点的统计性质。数值算例说明了所得结果的有效性。
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引用次数: 1
Optimization model for the power system scheduling with wind generation and compressed air energy storage combination 风电与压缩空气储能组合的电力系统调度优化模型
Pub Date : 2016-09-01 DOI: 10.1109/IConAC.2016.7604936
Yaowang Li, S. Miao, Xing Luo, Jihong Wang
When energy storage is involved in the power system scheduling, the new challenge is presented as the storage facilities can be considered as either a generator (discharging) or a load (charging). To address this challenge, the paper proposes a method of optimization of power system scheduling with the first generation of compressed air energy storage (CAES) This model takes gas consumption cost as one of the operation cost, and it can reflect inherent operation constrains of a first generation CAES plant. With simplifications of the CAES system model, the relationship between the key variables used in CAES scheduling model are identified. An optimization model for scheduling of wind generations and CAES combined system is then developed. The objective of this optimization scheduling model is to maximize the combined system operation profit which involves in selling electricity revenue, penalty for deviation from declared output and gas consumption cost of CAES. Simulation studies are carried out with the operation data of the Huntorf CAES plant. The simulation results show that the optimization model works well for power system scheduling while the CAES and wind power generations are presented.
当储能系统被纳入电力系统调度时,储能系统既可以作为发电机(放电),也可以作为负荷(充电),这就提出了新的挑战。针对这一挑战,本文提出了一种基于第一代压缩空气储能(CAES)的电力系统调度优化方法,该模型将用气成本作为运行成本之一,能够反映第一代压缩空气储能电厂固有的运行约束。通过对CAES系统模型的简化,确定了CAES调度模型中关键变量之间的关系。建立了风电机组与CAES联合调度的优化模型。该优化调度模型的目标是使联合系统的运行利润最大化,其中包括售电收入、偏离申报产量的罚款和CAES的用气成本。利用Huntorf CAES电厂的运行数据进行了仿真研究。仿真结果表明,该优化模型在CAES和风力发电情况下都能很好地解决电力系统调度问题。
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引用次数: 16
A novel model for preserving Location Privacy in Internet of Things 一种新的物联网位置隐私保护模型
Pub Date : 2016-09-01 DOI: 10.1109/IConAC.2016.7604976
Ikram Ullah, M. A. Shah
The Internet of Things (IoT) is an Internet-based architecture for the exchange of information and services amongst millions of devices. Due to massive use of IoT for various benefits, there are high security and privacy related issues which need to be addressed. Many techniques have been proposed for preserving location privacy in the context of IoT. Some of these techniques are based on anonymization and others on obfuscation. However, the existing research clearly lags in preserving location privacy in IoT and has common issues such as being specific or restricted to certain location. This research focuses on preserving location privacy in the context of IoT. In this paper, we propose an Enhanced Semantic Obfuscation Technique (ESOT) for preserving location privacy in the IoT. We compare the performance of ESOT with previously developed Semantic Obfuscation Technique (SOT). The results show that ESOT achieves better location privacy and provides a balance between privacy and utility of location services.
物联网(IoT)是一种基于互联网的架构,用于在数百万设备之间交换信息和服务。由于大量使用物联网获得各种好处,因此需要解决高度安全和隐私相关问题。在物联网环境下,已经提出了许多保护位置隐私的技术。其中一些技术是基于匿名的,另一些是基于混淆的。然而,现有的研究在保护物联网中的位置隐私方面明显滞后,并且存在特定或仅限于特定位置等常见问题。本研究的重点是在物联网环境下保护位置隐私。在本文中,我们提出了一种增强语义混淆技术(ESOT)来保护物联网中的位置隐私。我们比较了ESOT与先前开发的语义混淆技术(SOT)的性能。结果表明,ESOT实现了较好的位置隐私性,并在位置服务的隐私性和实用性之间取得了平衡。
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引用次数: 19
Segmentation of online sketching using geometric feature 基于几何特征的在线速写分割
Pub Date : 2016-09-01 DOI: 10.1109/IConAC.2016.7604935
Guanfeng Wang, Shuxia Wang
The stroke segmentation is one of the important factors for checking recognition rate of online freehand sketching that is an effective way for expressing, communicating and recording ideas during conceptual design. Strokes are divided into convex and concave stroke depending on whether is change the vector direction of preprocessing points. The paper proposes two kinds of segmentation methods for the former and analyzes their differences. To the latter, groups the preprocessing points and follows the rule that is the most of square number of the preprocessing points in unit length to segment the stroke. This paper develops a human-computer interface prototype system FSR, which makes system interface easy and friendly to user. The FRS system has been tested with a number of freehand sketches; the test results show that the algorithm achieves a satisfactory segmenting efficiency. Our method that tolerates high degrees of uncertainty and vague ideas does not rely on any domain-specific knowledge, and therefore it can be easily integrated with other high-level applications.
写意素描是概念设计过程中表达、交流和记录思想的有效方式,笔画分割是检验写意素描识别率的重要因素之一。根据是否改变预处理点的矢量方向,将笔画分为凸笔画和凹笔画。本文针对前者提出了两种分割方法,并分析了它们的区别。对于后者,将预处理点分组,并按照预处理点单位长度的平方数最多的原则分割行程。本文开发了一个人机界面原型系统FSR,使系统界面简单友好。FRS系统已经用一些手绘草图进行了测试;测试结果表明,该算法取得了满意的分割效率。我们的方法可以容忍高度的不确定性和模糊的想法,不依赖于任何特定于领域的知识,因此它可以很容易地与其他高级应用程序集成。
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引用次数: 0
Utilising Creative Computing and data mining techniques to analyse queries in a meta-search system 利用创造性计算和数据挖掘技术分析元搜索系统中的查询
Pub Date : 2016-09-01 DOI: 10.1109/IConAC.2016.7604953
Sicong Ma, Siyan Li, Hongji Yang
As the World Wide Web has a huge number of information and update rapidly, the needs of people for searching information from the web increase dramatically. Meanwhile, most of current search engines can search a query from websites, but cannot present the most relevant results to users. The main challenge for search engines and meta search engines are how to describe and analyse a query more comprehensively. In order to solve this problem, this paper presents a meta-search engine named Personlised Meta Search Engine (PMSE) that has been used to adapt the web search processes to meet users' requirement. Firstly, a technique will enrich the given query by data mining and creative computing. Secondly, a new meta-search engine is developed to make the results more relevant. Finally, an example is used to demonstrate what the proposed approach will be described more comprehensively and to produce fewer but more precise answers to individual users.
由于万维网信息量大、更新快,人们从网上搜索信息的需求急剧增加。同时,目前大多数搜索引擎都可以从网站上搜索到一个查询,但却无法将最相关的结果呈现给用户。搜索引擎和元搜索引擎面临的主要挑战是如何更全面地描述和分析查询。为了解决这一问题,本文提出了一种名为个性化元搜索引擎(PMSE)的元搜索引擎,用于调整web搜索过程以满足用户的需求。首先,该技术将通过数据挖掘和创造性计算丰富给定的查询。其次,开发了一种新的元搜索引擎,使搜索结果更具相关性。最后,使用一个示例来演示所建议的方法将被更全面地描述,并为单个用户提供更少但更精确的答案。
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引用次数: 5
Research on MAC layer communication performance model of wireless sensor networks for intelligent transportation 智能交通无线传感器网络MAC层通信性能模型研究
Pub Date : 2016-09-01 DOI: 10.1109/IConAC.2016.7604947
Z. Chu, Wei Sun, Jianping Wang
With the development of MEMS (Micro-electromechanical Systems), the wireless sensor networks (WSNs) have become an important communicating method for intelligent transportation application. Mathematics modeling, as an effective quantitative analysis method, is very important for conducting intelligent transportation performance research when WSNs are applied. Based on the channel contention mechanism of IEEE802.15.4 standard Media Access Control (MAC) layer unslotted mode, MAC layer mathematics performance model of throughput, goodput, average delay and collision rate is built by analyzing the state of node buffer, state of nodes, and the state of channel. In addtion, the MAC layer mathematics models and corresponding performance are simulated in MATLAB and QualNet respectively. The simulation results indicate that the mathematics models can be used for the real communication quantitative analysis of WSNs MAC layer communication.
随着微机电系统(MEMS)的发展,无线传感器网络(WSNs)已成为智能交通应用的重要通信手段。数学建模作为一种有效的定量分析方法,对应用无线传感器网络进行智能交通性能研究具有十分重要的意义。基于IEEE802.15.4标准MAC层无槽模式的信道争用机制,通过对节点缓冲区状态、节点状态和信道状态的分析,建立了吞吐量、goodput、平均时延和碰撞率的MAC层数学性能模型。此外,还分别在MATLAB和QualNet中对MAC层数学模型和相应性能进行了仿真。仿真结果表明,该数学模型可用于无线传感器网络MAC层通信的真实通信定量分析。
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引用次数: 7
Stability of severe slug flow in U-shape riser u型立管剧烈段塞流的稳定性
Pub Date : 2016-09-01 DOI: 10.1109/IConAC.2016.7604948
Henry Tandoh, Yi Cao, C. Avila
A typical challenge in the oil and gas industry when transporting hydrocarbon fluids, is the instabilities associated with the flow resulting from pressure and flow fluctuations. U-shape riser or platform to platform pipeline configuration also faces such difficulty and this negatively affects downstream facilities and production on the whole. This undesirable flow has stimulated several researches and investigation from time past in the quest to mitigate slugging. Active control scheme as a slug mitigation technique, operates at a greater choke valve opening than would be obtained using manual choking. This auspicious technique faces the challenge of having a controller that is robust and capable of producing the desired performance. A novel Inferential Slug Controller (ISC), an active control scheme, combines several topside measurement on a U-shape riser to produces a single control variable which is more sensitive to slug flow through a simple algebraic scheming. In this work, a method that can be used for slug control stability analysis was used to design an ISC. Further insight was drawn-out by performing several system stability analysis. The effectiveness of the proposed method was accessed using OLGA. The findings could possibly have consequences on the configuration and further expansion on the ISC technique.
油气行业在输送烃类流体时面临的一个典型挑战是由压力和流量波动引起的流动不稳定性。u型立管或平台到平台的管道配置也面临这样的困难,这对下游设施和整体生产产生了负面影响。这种不受欢迎的流动引发了一些研究和调查,以寻求减轻段塞流。主动控制方案作为一种缓解段塞流的技术,在比手动节流更大的节流阀开度下运行。这种吉祥的技术面临的挑战是拥有一个鲁棒且能够产生期望性能的控制器。一种新型的推理段塞流控制器(ISC)是一种主动控制方案,它结合了u型隔水管上的多个上层测量数据,通过简单的代数规划产生一个对段塞流更敏感的单一控制变量。本文采用一种可用于段塞流控制稳定性分析的方法设计了一种ISC。通过执行几个系统稳定性分析,进一步深入了解。通过OLGA验证了该方法的有效性。这些发现可能会对ISC技术的配置和进一步扩展产生影响。
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引用次数: 3
Benchmarking heuristic search and optimisation algorithms in Matlab 在Matlab中对标启发式搜索和优化算法
Pub Date : 2016-09-01 DOI: 10.1109/IConAC.2016.7604927
Wuqiao Luo, Yun Li
With the proliferating development of heuristic methods, it has become challenging to choose the most suitable ones for an application at hand. This paper evaluates the performance of these algorithms available in Matlab, as it is problem dependent and parameter sensitive. Further, the paper attempts to address the challenge that there exists no satisfied benchmarks to evaluation all the algorithms at the same standard. The paper tests five heuristic algorithms in Matlab, the Nelder-Mead simplex search, the Genetic Algorithm, the Genetic Algorithm with elitism, Simulated Annealing and Particle Swarm Optimization, with four widely adopted benchmark problems. The Genetic Algorithm has an overall best performance at optimality and accuracy, while PSO has fast convergence speed when facing unimodal problem.
随着启发式方法的迅速发展,如何为手头的应用选择最合适的启发式方法已成为一项挑战。本文在Matlab中对这些算法的性能进行了评价,因为它们具有问题依赖性和参数敏感性。此外,本文试图解决没有满意的基准来评估所有算法在同一标准下的挑战。本文在Matlab中测试了五种启发式算法,即Nelder-Mead单纯形搜索、遗传算法、精英遗传算法、模拟退火算法和粒子群算法,以及四种被广泛采用的基准问题。遗传算法在最优性和精度方面具有较好的综合性能,而粒子群算法在单峰问题上收敛速度较快。
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引用次数: 10
Identifying the potential of human-robot collaboration in automotive assembly lines using a standardised work description 使用标准化工作描述识别汽车装配线中人机协作的潜力
Pub Date : 2016-09-01 DOI: 10.1109/IConAC.2016.7604898
Johannes Teiwes, Timo Bänziger, A. Kunz, K. Wegener
The increased availability of sensitive and compliant lightweight robots for use in assembly lines collaborating with the human promises significant improvements of different socio-technical aspects of work. Workplaces can be reorganized to assign monotonous or unergonomic tasks to the robot. Also unproductive jobs currently done by the human can be minimized by an improved work distribution. Since there is only little experience with the new generation of collaborating robots, the implementation of workplaces shared by human and robot is often influenced by subjective perspectives. In this paper, an approach to assess the collaboration potential of workplaces is presented. Based on existing standardised work descriptions, the suitability for human-robot collaboration can be derived and therefore a more objective evaluation and comparison of the whole assembly can be achieved.
在与人类合作的装配线上使用的敏感和顺从的轻型机器人的可用性增加,承诺了工作的不同社会技术方面的重大改进。工作场所可以重新组织,将单调或不符合人体工程学的任务分配给机器人。此外,目前由人类完成的非生产性工作可以通过改进工作分配来最小化。由于新一代协作机器人的经验很少,人与机器人共享工作场所的实施往往受到主观观点的影响。本文提出了一种评估工作场所协作潜力的方法。在现有标准化工作描述的基础上,推导出人机协作的适宜性,从而对整个装配进行更客观的评价和比较。
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引用次数: 26
The study of an image-based method for product color design 基于图像的产品色彩设计方法研究
Pub Date : 2016-09-01 DOI: 10.1109/IConAC.2016.7604933
Dengkai Chen, Danping Ma, Jianjie Chu, Jintao He
This paper proposes an image-based method for product color design and constructs a color matching model on the basis of the CorelDRAW platform by establishing a reflection between the image words of colors and excellent color applications. The grey relation clustering method is applied to classify and simplify consumers' image words. Then, product color design options are found in combination with the case library to understand consumers' color requirements and improve the design efficiency. A case study of the color design of a special transportation vehicle is applied to verify the proposed method.
本文提出了一种基于图像的产品色彩设计方法,并在CorelDRAW平台的基础上,通过建立颜色图像词与优秀色彩应用之间的映射,构建了色彩匹配模型。采用灰色关联聚类方法对消费者形象词进行分类和简化。然后结合案例库寻找产品色彩设计选项,了解消费者的色彩需求,提高设计效率。以某特种运输车辆的色彩设计为例,对所提出的方法进行了验证。
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引用次数: 1
期刊
2016 22nd International Conference on Automation and Computing (ICAC)
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