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1.
针对网络控制系统受欺骗攻击问题,提出了事件触发器与安全控制器协同设计策略。提出了离散事件触发机制,克服了连续事件触发机制需要新增专用硬件且需要复杂计算避免芝诺现象局限。建立了有机融合欺骗攻击、事件触发机制、网络诱导延时及外部扰动多约束参数的闭环系统时滞模型,推导出了欺骗攻击下事件触发控制系统渐近稳定的充分条件,得到了事件触发器与安全控制器的协同设计条件。仿真验证了方法的有效性。  相似文献   
2.
陈珊  蔡坚  王谦  陈瑜  邓智 《半导体技术》2015,(7):542-546
介绍了数模混合高速集成电路(IC)封装的特性以及该类封装协同设计的一般分析方法.合理有效的基板设计是实现可靠封装的重要保障,基于物理互连设计与电设计协同开展的思路,采用Cadence APD工具以及三维电磁场仿真工具实现了特定数模混合高速集成电路(一款探测器读出电路)的封装设计与仿真论证,芯片封装后组装测试,探测器系统性能良好,封装设计达到预期目标.封装电仿真主要包含:封装信号传输通道S参数提取、电源/地网络评估,探测器读出芯片封装体互连通道设计能满足信号带宽为350 MHz(或者信号上升时间大于1 ns)的高速信号的传输.封装基板布线设计与基板电设计协同分析是提高数模混合高速集成电路封装设计效率的有效途径.  相似文献   
3.
ABSTRACT

We present the methodology and results of participatory design of a robot for presenting an epileptic seizure and a scenario of the educational workshop using this robot. Children with epilepsy encounter stigma and stereotypes and may receive inadequate aid when having an epileptic seizure. The goal of the larger project was to use the prototype device in a series of workshops for improving teachers' actions during an epileptic seizure and their attitudes towards epileptic students. In this paper, we show how various design goals for an educational robot were accomplished to fit the needs of all identified stakeholders, particularly people with epilepsy.

We used a co-design (participatory design) approach through a series of meetings participated by members of the association Polish Association for People Suffering from Epilepsy, students and faculty members of the biomedical engineering and robotics departments, teachers, psychologists and medical specialists (epileptologist, neurologist).

These meetings created an opportunity for a better understanding of the (functional and nonfunctional) requirements and resulting tradeoffs and led the participants to find appropriate solutions. Participation of people with epilepsy in the design process allowed them to deal with the potentially stereotyped representation of themselves. The prototype robot, therefore, combined goals of various stakeholders, such as an accurate presentation of an epileptic seizure, lightweight, ease of use and control, while preserving the dignity of people with epilepsy.

As a result of the co-designing process, an inexpensive robot was created and used in a series of 10 pilot workshops with 217 participants, mainly teachers of primary and middle schools. Teachers improved their understanding of epilepsy and suggested further improvements to the system.  相似文献   
4.
This article concerns the event-triggered fuzzy filter design for Takagi-Sugeno (T-S) fuzzy systems subject to deception attacks under the stochastic multiple time-varying delays. A sequence of random variables, which are mutually independent but obey the Bernoulli distribution, is introduced to account for the randomly occurring communication delays. In order to efficiently utilize limited network communication bandwidth resources, the event-triggering scheme is adopted. A fuzzy filter with the attacked input signal is presented. Moreover, due to communication delays caused by event-triggering schemes and transmission, the filter adopts non-synchronous premise variables with the system. Then, by utilizing a model transformation technique, the fuzzy systems are developed. Furthermore, using the piecewise Lyapunov functional method technique, the resulting criterion provides sufficient conditions to ensure that fuzzy systems under deception attacks are stochastically stable with an H performance. Accordingly, the conditions for the co-design of the fuzzy filter and event-triggering schemes are given. Finally, numerical simulation with the industrial process provided to verify the proposed event-triggered design.  相似文献   
5.
Abstract

This article introduces a case study undertaken in the indigenous Penan community of Long Lamai, Upper Baram, Sarawak, Malaysia. In this community, there is concern about the negative image other cultural groups hold of the Penan. This case study explores co-design as a means to invite community members, together with a designer, to explore the identity that they would like to present to people outside the community. In preparing for an exhibition to challenge perceptions, it turned out to be important to embrace the culture of the community to facilitate self-expression, introducing new concepts such as technological interventions and design probes to stimulate reflection and creativity. However, it was indigenous material culture, when actively and encouragingly supported by the designer, that had a key role in developing the co-design and, with it, empathic understanding between designer and community.  相似文献   
6.
ABSTRACT

For academic design programmes and research councils, finding mechanisms to measure impact and valuate co-design research projects is very difficult. The metric parameters – number of attendees, volume, shape, length – have shown to be insufficient. The subject matter, the subjects and matters, do not easily fit within these parameters, which fail to translate the value of a ‘constellation of affections’ that emerge throughout co-design processes. Emphasis on quantifiable impact derives from particular ways of understanding production, reproduction, and dissemination of knowledge. This paper understands academic design programmes as a technology to discuss axiology in co-design practices. This paper re-configures a techno-logic of value; from chain of value to value constellation, intersecting a co-design case study with readings of Simondon’s philosophy of technology and Barad’s agential realism. Ageing Playfully was a knowledge exchange project from The Creative Exchange programme, that involved people living with dementia and their caregivers co-designing interventions to boost mobility and well-being. At the core, this paper, explores an axiological move that informs a framework of emergence, a way of thinking in methods to account for the value of co-design as site of emergence.  相似文献   
7.
Ann Light 《CoDesign》2019,15(3):192-211
ABSTRACT

If municipalities were the caring platforms of the 19-20th century sharing economy, how does care manifest in civic structures of the current period? We consider how platforms – from the local initiatives of communities transforming neighbourhoods, to the city, in the form of the local authority – are involved, trusted and/or relied on the design of shared services and amenities for the public good. We use contrasting cases of interaction between local government and civil society organisations in Sweden and the UK to explore trends in public service provision. We look at how care can manifest between state and citizens and at the roles that co-design and co-learning play in developing contextually sensitive opportunities for caring platforms. In this way, we seek to learn from platforms in transition about the importance of co-learning in political and structural contexts and make recommendations for the co-design of (digital) platforms to care with and for civil society.  相似文献   
8.
热电池以其贮存和环境适应性等方面的优势,越来越广泛地应用到各种新型武器系统中。在热电池开发过程中,由于定制性的特点,若使用和研制双方缺乏有效沟通,最终可能导致其在使用中出现问题。对热电池认识误区、热电池研发过程中需要关注和考虑的因素等展开论述,并在此基础上提出了使用方与研制方共同设计的热电池研发原则,有助于获得最优设计的热电池产品。  相似文献   
9.
针对飞行器电缆传统设计方法存在效率低、偏差大、电缆走向不合理、设计阶段难以估算质量特性等问题,文中在研究电缆设计原理及Creo三维电缆设计模块的基础上,给出了一种电缆三维协同设计方法,提高飞行器电缆设计效率和电缆网布局的合理性,对飞行器电缆设计有重要的推广意义.文中以某飞行器舱段电缆设计为例,验证了该方法的可行性.  相似文献   
10.
张坤宁  赵烁  何虎  邓宁  杨旭 《计算机工程》2021,47(4):153-157
为提高卷积神经网络(CNN)的计算效率和能效,以8 bit定点数据作为输入,设计一个支持激活、批标准化以及池化等CNN网络中常见计算类型的卷积加速器,优化循环计算顺序并将其与数据复用技术相结合,以提高卷积计算的效率。基于软硬件协同设计思想,构建包含RISC-V处理器和卷积加速器的SoC系统,RISC-V处理器基于开源的指令集标准,可以根据具体的设计需求扩展指令功能。将该SoC系统部署在Xilinx ZCU102开发板上,RISC-V处理器和卷积加速器分别工作在100 MHz和300 MHz频率下,测试结果表明,该加速器的算力达到153.6 GOP/s,运行VGG16网络进行图片推理计算时加速效果较好。  相似文献   
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