检索结果-内蒙古大学图书馆

126th ASEE Annual conference and exposition: Charged Up for the Next 125 Years, ASEE 2019

作者： Currie, Edward H. Craig, Kevin C. Hofstra University United States

Mechanisms have been around for millennia dating back to the Egyptians. More recently, the slider-crank mechanism was invented by Leonardo da Vinci over 500 years ago. Up until 30 years ago, the design of mechanisms was mechanical, but in the present mechatronic age, the design is multidisciplinary, i.e., mechanical, electrical, electro-mechanical, hydraulic, and pneumatic. Mechatronics is the synergistic integration of physical systems, electronics, controls, and computers through the design process, and is the best practice for synthesis by engineers driven by the needs of industry and human beings. One of the most common mechanisms in the world is the slider crank. Its most common application is the internal combustion engine, but it is also used in an automatic toothbrush. A mechatronic approach to the design and implementation of any mechanism has been developed and is applied in a case study to the slider crank. The approach reflects both the traditional mechanism analysis and synthesis methods together with the best industry practices, e.g., Rockwell Automation, Procter & Gamble. The mechatronic mechanism design process was implemented, and a slider crank was built to accomplish a prescribed task. This process was used in Mechanical engineering Senior Capstone design during the fall 2018 semester. Seven design teams, with four students in each team, created four-bar mechanism applications using this mechatronic process, first creating a MatLab Simulink virtual prototype of the complete system, and then building a working prototype with LabVIEW and the NI myRIO. The 7 four-bar mechanisms were: robot gripper, quick return, pick and place, windshield wiper, landing gear, flipping mechanism, and straight line. This paper documents this capstone design experience, including extensive student evaluation of the course. © American Society for engineering Education, 2019.

关键词： Mechanisms

来源：评论

学校读者我要写书评

暂无评论

A Tool for modeling JsonLogic based Business Process Rules 1

A Tool for Modeling JsonLogic based Business Process Rules

引用

1st International Informatics and Software engineering conference, IISEC 2019

作者： Soleymanzadeh, Katira Bul, Yigit Bagci, Sarper Kardas, Geylani Hermes Iletisim Pasaport Izmir Turkey Ege University International Computer Institute Izmir35100 Turkey

ISBN: (纸本)9781728139920

JsonLogic structures, based on JavaScript Object Notation (JSON), are used in software applications in order to create business process rules. However, JsonLogic's textual syntax is different from the general purpose programming languages and it causes difficulties on the formalization of complex business rules. This unfamiliar way of rule creation may also lead to a time-consuming and error-prone development process. In this paper, we introduce a web based visual modeling tool which facilitates the construction of such business rules by following a model-driven engineering methodology. Inside this tool, the developers can visually design business rules with the block programming approach and corresponding JsonLogic codes are automatically generated. Moreover, changes made in these auto-generated codes can be reflected automatically to the related models inside the tool without any human intervention. Hence the synchronization between JsonLogic models and codes is provided. It has also been found that JsonLogic business rules can be created with significantly fewer visual components and hence with simpler models in comparison with the unique editor currently available for the similar purpose. The modeling tool is now used by Hermes Iletisim company during the development of various commercial software products. © 2019 IEEE.

关键词： modeling languages

来源：评论

学校读者我要写书评

暂无评论

Runtime Safety Assurance Using Reinforcement Learning

Runtime Safety Assurance Using Reinforcement Learning

引用

conference on digital Avionics Systems (DASC)

作者： Christopher Lazarus James G. Lopez Mykel J. Kochenderfer Stanford University Stanford CA GE Research Niskayuna NY

ISBN: (数字)9781728198255

ISBN: (纸本)9781728180885

The airworthiness and safety of a non-pedigreed autopilot must be verified, but the cost to formally do so can be prohibitive. We can bypass formal verification of non-pedigreed components by incorporating Runtime Safety Assurance (RTSA) as mechanism to ensure safety. RTSA consists of a meta-controller that observes the inputs and outputs of a non-pedigreed component and verifies formally specified behavior as the system operates. When the system is triggered, a verified recovery controller is deployed. Recovery controllers are designed to be safe but very likely disruptive to the operational objective of the system, and thus RTSA systems must balance safety and efficiency. The objective of this paper is to design a meta-controller capable of identifying unsafe situations with high accuracy. High dimensional and non-linear dynamics in which modern controllers are deployed along with the black-box nature of the nominal controllers make this a difficult problem. Current approaches rely heavily on domain expertise and human engineering. We frame the design of RTSA with the Markov decision process (MDP) framework and use reinforcement learning (RL) to solve it. Our learned meta-controller consistently exhibits superior performance in our experiments compared to our baseline, human engineered approach.

关键词： Safety Control systems Switches Aircraft Atmospheric modeling Aerospace control Reinforcement learning

来源：评论

学校读者我要写书评

暂无评论

Engagement in practice (EIP): An engineering service-learning course in collaboration with an art 2D design course to serve young people on the autism spectrum using the touch board™ 126

Engagement in practice (EIP): An engineering service-learnin...

引用

126th ASEE Annual conference and exposition: Charged Up for the Next 125 Years, ASEE 2019

作者： Yan, Yanjun LaFratta, Mary Anna Jack, Hugh Perry, Lane Graves Western Carolina University United States

This course is the first designated "Service-Learning Course" from the College of engineering and Technology at Western Carolina University. The course is offered in the Spring semester (Jan-May) 2019 and is the first Service-Learning project between the School of engineering + Technology and the School of Art and design. The service-learning project involves interdisciplinary student teams consisting of upper-level engineering and technology students and entry-level art and design students working together to mentor young clients on the autism spectrum at a not-for-profit organization, Full Spectrum Farm (FSF), in the local community. The course will use Touch Boards (https://***/shop/touch-board/) manufactured by Bare Conductive Touch Boards are essentially Arduino boards with capacitive sensing capabilities (https://***/) that are programmed with the Arduino IDE (Integrated design Environment) for user-friendly interfaces. Commonly these boards are used with conductive paint that is applied with a brush to create an artistic drawing resulting in a circuit that reacts to human touch to trigger a user-specified sound or other actions. The team has created a sample design and used it at outreach activities, demonstrating that the Touch Boards will be manageable for new learners under our students' mentoring. The authors met with the FSF clients in Summer 2018 and have hosted the clients on campus to work with our students three times in Spring 2019, with a few more meetings scheduled. The project will provide novel avenues of expression for the autistic clients and opportunities for the engineering and art students to learn to apply their discipline knowledge in real-world applications, practice collaboration, develop mentoring skills, critically reflect upon their learning, and integrate sound, technology and visual graphics into interactive two-dimensional compositions. For the FSF clients, it is an opportunity for them to work direct

关键词： Students

来源：评论

学校读者我要写书评

暂无评论

Impact of bioinspired robots on veterans pursuing sTEM degrees 126

Impact of bioinspired robots on veterans pursuing sTEM degre...

引用

126th ASEE Annual conference and exposition: Charged Up for the Next 125 Years, ASEE 2019

作者： Popescu, Otilia Jovanovic, Vukica M. Kaipa, Krishnanand Arcaute, Karina Dean, Anthony W. Old Dominion University United States

The gap in the area of advanced manufacturing skilled workforce and the efforts in guiding veterans towards STEM careers are merged in the NSF funded project presented in this paper. While most of the products and STEM educational programs focused on a maker concept that are currently available are specifically designed for young population, at various K-12 grade levels, to increase their interest in STEM and engineering careers in particular, there is a limited availability of such programs to address adult population. The study presented in this paper focuses on developing and implementing a series of workshops for veterans, using bio-inspired robots as a learning platform. The design, making and controlling of bio-inspired robots require knowledge of mechanical, electrical, computer, and material science engineering, and have the potential to spark interest in a wide variety of engineering pathways. The paper discusses the topics covered by the workshops, the scaffolding of the activities, and the assessment conducted on how the bio-inspired robotics activities may influence veterans' attitude towards advanced manufacturing careers. © American Society for engineering Education, 2019.

关键词： Machine design

来源：评论

学校读者我要写书评

暂无评论

Low-Power HWAccelerator for AI Edge-Computing in human Activity Recognition Systems

Low-Power HWAccelerator for AI Edge-Computing in Human Activ...

引用

IEEE International conference on Artificial Intelligence Circuits and Systems (AICAS)

作者： Antonio De Vita Danilo Pau Claudio Parrella Luigi Di Benedetto Alfedo Rubino Gian Domenico Licciardo Department of Industrial Engineering University of Salerno Fisciano SA Italy System Research and Applications STMicroelectronics Agrate Brianza MI Italy Microcontrollers and Digital-IC STMicroelectronics Arzano NA Italy

ISBN: (数字)9781728149226

ISBN: (纸本)9781728149233

In this paper, an energy efficient HW accelerator for AI edge-computing in human Activity Recognition is proposed. The system processes samples from a tri-axial accelerometer and classifies the human activities by using a novel Hybrid Neural Network (HNN) topology, which has been designed to reduce the computational complexity of the system while preserving its accuracy. The HW design improves the characteristics of the HNN by means of an architecture that is aimed to reduce the allocated physical resources and the memory accesses. While accuracy measured on ad-hoc dataset is 97.5 %, measurements from synthesis with CMOS 65 nm standard cells report power consumption of 6.3 μW when the sensor output data rate is 25 Hz, normally used for HAR.

关键词： Neural networks Computational modeling Acceleration Activity recognition Accelerometers Legged locomotion Field programmable gate arrays

来源：评论

学校读者我要写书评

暂无评论

Longitudinal Flying Qualities Evaluation Method for Receiver in Probe and Drogue Aerial Refueling

Longitudinal Flying Qualities Evaluation Method for Receiver...

引用

International conference on Mechanical and Aerospace engineering (ICMAE)

作者： Chang Lu Lixin Wang Ting Yue Hailiang Liu School of Aeronautic Science and Engineering Beihang University Beijing China

ISBN: (数字)9781728183220

ISBN: (纸本)9781728183237

The receiver aircraft needs to have the ability to accurately track the flight path during the probe and drogue aerial refueling, but the conventional military flying qualities standards are insufficient. In this paper, a man-machine closed-loop system for the probe and drogue refueling task is established, and a digital virtual flight simulation method is used to simulate closed-loop tracking tasks. Based on the task-dependent handling-quality metric derived by simulation results, the pilot's perception of task difficulty is evaluated, so as to reflect the flying qualities of the receiver to track the flight path. By comparing the handling-quality metric with the Cooper-Harper rating obtained from the mission-based human-in-the-loop flight test, quantitative requirements for handling-quality metric are proposed. The conclusions can provide important theoretical reference for the design of flight control laws for the probe and drogue refueling mode and the simulation method proposed in this paper has an extensive application prospect in the prediction of flying qualities.

关键词： Task analysis Atmospheric modeling Aircraft Receivers Probes Standards Aerospace control

来源：评论

学校读者我要写书评

暂无评论

design and Development of Cyber Physical System for Real-Time Web-based Visualization and Control of Robot Arm

Design and Development of Cyber Physical System for Real-Tim...

引用

IEEE International conference on Control and Robotics engineering (ICCRE)

作者： Suwanan Khrueangsakun Santi Nuratch Panuthat Boonpramuk Embedded Computing and Control Laboratory Faculty of Engineering KMUTT Bangkok Thailand

ISBN: (数字)9781728167916

ISBN: (纸本)9781728167923

Since Cyber-Physical System or CPS currently takes part in industrial, there is a lot of research for developing this system. From the survey and the trend of CPS research, a human user interface for control and monitor was highlighted as digital Twins where VR and AR are introduced to improve the visualization for easier system interpretation. This paper introduces the proposed design of real-time control web-based monitor and control of 4-DoF robotic arm system where the robotic arm represents a physical part and web-based visualization as a cyber-part. The 4-DoF robotic arm was utilized from MeArm robot and was controlled via ESP32 WROOM with Wi-Fi module in order to pursue wireless data transmission. WebSocket protocol will be exploited to connect between the physical and cyber-part where the virtual model was displayed and controlled via web-browser, the virtual model of the robot was created with 3D blender and operated with WebGL-based 3D application which can be integrated and run on web-browser without extension. The proposed design was evaluated with operational time and error between the controlled virtual model and actual physical angle, the result achieved 278.772 ms for average operational time and 0.32% in error of angle between virtual and actual. As a result, the proposed design provided two-way communication, real-time control, and monitor which can be applied in industrial applications.

关键词： Manipulators Solid modeling Three-dimensional displays Real-time systems Servers Service robots

来源：评论

学校读者我要写书评

暂无评论

human digital modeling and RULA analysis for an office chair user in computer work environment – A case study in Indian context

引用

AIP conference Proceedings 2021年第1期2316卷

作者： M. Math Mahantesh K. V. S. Rajeswara Rao Jaydeep Mandal 1Department of Mechanical Engineering Rashtreeya Vidyalaya College of Engineering Bengaluru Karnataka India 2Department of Industrial Engineering and Management Rashtreeya Vidyalaya College of Engineering Bengaluru Karnataka India

The global market size of office chair is around $10.69 billion and it is slowly increasing in all industries, institutes, schools, and universities, etc. Reports of research studies indicate that excessive sitting and improper sitting postures on the chair hurts the health of human and cause low back pain, musculoskeletal disorders in large scale. In this context, very few works have been done. The objective of this work is to design the ergonomic office chair and perform the Rapid Upper Limb Analysis (RULA) for computer users. The design of the chair was modeled based on Indian anthropometric standard data in CATIA-V5 software. The human digital model (HDM) was designed by considering Indian anthropometric data. In RULA analysis, the final scorecard was generated in both left as well as right side for HDM at the intermittent condition. The score card indicates 2 of HDM. The score 2 represent low risk. The new office chair design is expected to reduce computer work related MSD’s.

关键词：

来源：评论

学校读者我要写书评

暂无评论

FPGA Implementation of Bio-Inspired Computing Architecture Based on Simple Neuron Model

FPGA Implementation of Bio-Inspired Computing Architecture B...

引用

International Symposium on Artificial Intelligence and Signal Processing (AISP)

作者： B.U.V Prashanth Mohammed Riyaz Ahmed School of Electronics and Communication Engineering REVA University Bengaluru India

ISBN: (数字)9781728144580

ISBN: (纸本)9781728144597

The processor architecture families are under power, thermal, and area constraints and considers allowing optimization of chip throughput for a specific device technology by an appropriate model for performance, memory sub-systems and interconnects for various technology architectures. The system level design framework provides the best possible design trade-off for different technology and choice of processor architectures. The aim of Bio-Inspired engineering is to reverse engineer the human brain using VLSI as well as analog electronics circuits. This research manuscript depicts the demonstration of brain-inspired computing architecture based on Leaky-Integrate-and-File (LIF) neuron model for neuromorphic computing system is implemented on the Field Programmable Gate Array (FPGA). The reconfigurable and event driven parameters are considered to design a field-programmable neuromorphic computing system. The register transfer logic (RTL) results of implementation and hardware synthesis are presented as a proof of concept. The neuron model is explored in Xilinx-ISE software with utilizing Verilog code, considering digital implementation, aiming at high-speed low-cost large-scale systems.

关键词： Computer architecture Neuromorphics Hardware Field programmable gate arrays Neurons Clocks Computational modeling

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：