共查询到20条相似文献,搜索用时 31 毫秒
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刘文杰 《数字社区&智能家居》2006,(11):110-114
中国科学院自动化研究所智能住宅(Smart Home)因体现了人类生活的舒适境界而倍受瞩目,其最大的特点就是方便舒适和无处不在的信息流动,因此也被称为信息家庭iHOME。目前,智能住宅在世界各国都在竞相发展。[编者按] 相似文献
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IP层在TCP/IP体系结构中具有非常重要的意义,但由于其设计中的“友好”性导致其安全问题也非常明显。对IP层的安全问题进行了分析,并对其安全体系结构IPSec的原理进行了研究,主要介绍了其体系结构的模型、安全协议、安全策略和安全通信机制等问题。 相似文献
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IP层在TCP/IP体系结构中具有重要的地位和作用,该层的安全问题也非常突出。文章介绍了IP层安全体系结构IPSec的原理,包括IPSec体系结构模型、安全协议、安全策略等内容,重点研究了IPSec的安全通信机制。 相似文献
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设计构思 电子商务化后的企业必须能够对所有的网上客户给予满意的服务,不但要服务于大的商家,更多的是服务予一家一户,也就是说网上经营的主体还应该是零售业。但是商家往往认为零售业会导致配送点的散乱使平均运费过高而使单件商品的价格上升,客户就不能接受 相似文献
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住宅暖通空调系统通常耗用大量能源,同时也极大地影响居住者的热舒适性。目前,强化学习广泛应用于优化暖通空调系统,然而这一方法需要投入大量时间和数据资源。为了解决该问题,提出了一个新的基于事件驱动的马尔可夫决策过程(event-driven Markov decision process,ED-MDP)框架,并在此基础上,提出了基于事件驱动的深度确定性策略梯度(event-driven deep deterministic policy gradient,ED-DDPG)方法,通过事件触发优化控制,结合强化学习算法求解最优控制策略。实验结果显示,与基准方法相比,ED-DDPG在提升学习速度和减少决策频率方面表现出色,并在节能和维持热舒适方面取得了显著成果。经过实验验证,该方法在优化住宅暖通空调控制方面展现出强大的鲁棒性和适应性。 相似文献
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本文以某小区的现代化住宅为例,从其温度标准确定、基于人体热舒适性指标PMV的控制系统、合理选择冷冻机规模、新风量的计算确定等方面来阐述现代化住宅暖通空调设计的要素。 相似文献
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The entropy layer on a blunt-nosed cone is analyzed, in view of the difficulties it produces in numerical computations. A rule is given to determine at what distance from the nose the entropy layer is a given fraction of the shock layer, for a given free stream Mach number.A simple and very efficient way of computing flows with strong entropy layer effects is given. It is essentially based on the insertion of a line representing a locus of rapid changes in entropy derivatives, and on forbiding certain differentiations across such a line. 相似文献
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Computer graphics artists often resort to compositing to rework light effects in a synthetic image without requiring a new render. Shadows are primary subjects of artistic manipulation as they carry important stylistic information while our perception is tolerant with their editing. In this paper we formalize the notion of global shadow, generalizing direct shadow found in previous work to a global illumination context. We define an object's shadow layer as the difference between two altered renders of the scene. A shadow layer contains the radiance lost on the camera film because of a given object. We translate this definition in the theoretical framework of Monte‐Carlo integration, obtaining a concise expression of the shadow layer. Building on it, we propose a path tracing algorithm that renders both the original image and any number of shadow layers in a single pass: the user may choose to separate shadows on a per‐object and per‐light basis, enabling intuitive and decoupled edits. 相似文献
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The Method of Layers 总被引:1,自引:0,他引:1
Rolia J.A. Sevcik K.C. 《IEEE transactions on pattern analysis and machine intelligence》1995,21(8):689-700
Distributed applications are being developed that contain one or more layers of software servers. Software processes within such systems suffer contention delays both for shared hardware and at the software servers. The responsiveness of these systems is affected by the software design, the threading level and number of instances of software processes, and the allocation of processes to processors. The Method of Layers (MOL) is proposed to provide performance estimates for such systems. The MOL uses the mean value analysis (MVA) linearizer algorithm as a subprogram to assist in predicting model performance measures 相似文献
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We present an O(n log n)-time algorithm
to solve the three-dimensional layers-of-maxima problem.
This is an improvement over the prior
O(n log n log log n)-time solution.
A previous claimed O(n log n)-time solution
due to Atallah et al.
has technical flaws.
Our algorithm is based on a common framework
underlying previous work,
but to implement it
we devise a new data structure to solve
a special case
of dynamic planar point location in a staircase
subdivision.
Our data structure itself relies on a new extension
to dynamic fractional cascading
that allows vertices of high degree in the control graph. 相似文献
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