Design of Chirp Signal Based on NIOS

2014 ◽  
Vol 889-890 ◽  
pp. 881-885
Author(s):  
Ling Gang Zeng ◽  
Shou Liang Yang ◽  
Xing Xing Mu
Keyword(s):  
Design Process ◽  
Low Cost ◽  
Hardware Design ◽  
Signal Generator ◽  
Frequency Resolution ◽  
Design Solution ◽  
Chirp Signal ◽  
Frequency Bandwidth ◽  
Matlab Simulink ◽  
Dsp Builder

This paper analyzes the function of chirp. A design solution based on SOPC technology chirp signal put forward after the function had been studied both the hardware design and implement method. The chirp signal generator based on SOPC is designed according to the design process of Matlab/Simulink/DSP Builder/ QuartusII. The generator can produce the chirp signal well which is verified by the Matlab/Simulink and QuartusII. The starting frequency, bandwidth, and frequency resolution of chirp signal can be revamped by utilizing SOPC technology. This method is easier to implement since it is simple to design, easy to modify, low cost, no programming.

scholarly journals Messagerunner: Gamifying Behavioural Change Through Mobile Media

2021 ◽  
Author(s):  
◽  
Xudong Cheng
Keyword(s):  
Physical Activity ◽  
Design Process ◽  
Transtheoretical Model ◽  
Mobile Apps ◽  
Low Cost ◽  
Behavioural Change ◽  
Design Solution ◽  
Behavioural Intervention ◽  
Activity Promotion ◽  
Persuasive Technologies

<p>This research proposes a design solution that integrates gamification and behavioural change theories into a mobile fitness application to promote and maintain physical activity for young adults. This research proposes that the usability of mobile apps on behavioural modification can be improved by integrating psychological interventional methods into the product design. The design output, Messagerunner, will provoke critical reflection about the future design of mobile fitness applications. During the design process, I identified and collected related theories to analyse existing precedents, and then extracted design methods and criteria. Various methodologies including literature analysis, contextual inquiry, and iterative prototyping support the design solution.   Messagerunner seeks to balance the tedious exercise routine with the enjoyment from gamification. It uses widely accepted theories and methods on behavioural intervention to promote physical activity. This research was started by analysing the benefits and cost of behavioural intervention counselling and mobile persuasive technologies. Mobile applications have the benefits of being low cost and easy to access, compared to counselling. However, the existing applications have limits compared to professional intervention. Design solutions that combine intervention methods with persuasive technologies could lead to a better management for sedentary lifestyles.   Messagerunner adopts activity promotion methods drawn from a range of theories. These includes the transtheoretical model (TTM), the theory of planned behaviour (TPB) , and flow theory. The design of the app is inspired by three precedents: Pokémon Go, Habitica, and Run An Empire. To test the method, the design process includes contextual inquiry, prototyping, and user testing. The design outcomes apply to users worldwide and reflect on the design of current commercial fitness apps. The outputs produce a concept and UI design for the final iteration of Messagerunner. This research will provide insightful perspectives for future designs for fitness applications.</p>

scholarly journals Design and Analysis of a Low Cost Wave Generator Based on Direct Digital Synthesis

2015 ◽  
Vol 2015 ◽  
pp. 1-17 ◽  
Author(s):  
Jian Qi ◽  
Qun Sun ◽  
Xiaoliang Wu ◽  
Chong Wang ◽  
Linlin Chen
Keyword(s):  
Low Cost ◽  
Signal Generator ◽  
Frequency Resolution ◽  
Direct Digital Synthesis ◽  
Basic Principles ◽  
Display Module ◽  
Output Amplitude ◽  
Digital Synthesis ◽  
System Module ◽  
Minimum System

Signal generators are widely used in experimental courses of universities. However, most of the commercial tests signal generators are expensive and bulky. In addition, a majority of them are in a fixed working mode with many little-used signals. In order to improve this situation, a small sized and highly accurate economic signal generator based on DDS technology has been developed, which is capable of providing wave signals commonly used in experiments. Firstly, it is introduced the basic principles of DDS and is determined the overall scheme of the signal generator. Then, it proposes a design of the hardware, which include power supply module, display module, keyboard module, waveform generating module based on DDS chip, and the minimum system module based on C8051F010. The signal generator was designed to output sine and square waveforms, and the other achieved performances included the frequency range 0.1 Hz–12.5 MHz, the frequency resolution 0.05 Hz–0.1 Hz, the output amplitude 1.0–4.5 V, the frequency accuracyKfmin=94.12% andKfmax=99.99%, and the signal distortionRTHDmin=0.638% andRTHDmax=11.67%.

scholarly journals Messagerunner: Gamifying Behavioural Change Through Mobile Media

2021 ◽  
Author(s):  
◽  
Xudong Cheng
Keyword(s):  
Physical Activity ◽  
Design Process ◽  
Transtheoretical Model ◽  
Mobile Apps ◽  
Low Cost ◽  
Behavioural Change ◽  
Design Solution ◽  
Behavioural Intervention ◽  
Activity Promotion ◽  
Persuasive Technologies

<p>This research proposes a design solution that integrates gamification and behavioural change theories into a mobile fitness application to promote and maintain physical activity for young adults. This research proposes that the usability of mobile apps on behavioural modification can be improved by integrating psychological interventional methods into the product design. The design output, Messagerunner, will provoke critical reflection about the future design of mobile fitness applications. During the design process, I identified and collected related theories to analyse existing precedents, and then extracted design methods and criteria. Various methodologies including literature analysis, contextual inquiry, and iterative prototyping support the design solution.   Messagerunner seeks to balance the tedious exercise routine with the enjoyment from gamification. It uses widely accepted theories and methods on behavioural intervention to promote physical activity. This research was started by analysing the benefits and cost of behavioural intervention counselling and mobile persuasive technologies. Mobile applications have the benefits of being low cost and easy to access, compared to counselling. However, the existing applications have limits compared to professional intervention. Design solutions that combine intervention methods with persuasive technologies could lead to a better management for sedentary lifestyles.   Messagerunner adopts activity promotion methods drawn from a range of theories. These includes the transtheoretical model (TTM), the theory of planned behaviour (TPB) , and flow theory. The design of the app is inspired by three precedents: Pokémon Go, Habitica, and Run An Empire. To test the method, the design process includes contextual inquiry, prototyping, and user testing. The design outcomes apply to users worldwide and reflect on the design of current commercial fitness apps. The outputs produce a concept and UI design for the final iteration of Messagerunner. This research will provide insightful perspectives for future designs for fitness applications.</p>

scholarly journals Mechatronic Design of a Robot for Upper Limb Rehabilitation at Home

2021 ◽  
Vol 18 (4) ◽  
pp. 857-871
Author(s):  
Elio Matteo Curcio ◽  
Giuseppe Carbone
Keyword(s):  
Design Process ◽  
Upper Limb ◽  
Experimental Tests ◽  
Design Solution ◽  
Upper Limb Rehabilitation ◽  
Potential Benefits ◽  
Significant Cost Reduction ◽  
Dynamics Models ◽  
Limb Rehabilitation ◽  
At Home

AbstractThis paper addresses the design of a novel bionic robotic device for upper limb rehabilitation tasks at home. The main goal of the design process has been to obtain a rehabilitation device, which can be easily portable and can be managed remotely by a professional therapist. This allows to treat people also in regions that are not easily reachable with a significant cost reduction. Other potential benefits can be envisaged, for instance, in the possibility to keep social distancing while allowing rehabilitation treatments even during a pandemic spread. Specific attention has been devoted to design the main mechatronic components by developing specific kinematics and dynamics models. The design process includes the implementation of a specific control hardware and software. Preliminary experimental tests are reported to show the effectiveness and feasibility of the proposed design solution.

scholarly journals From Evidence to Design Solution—On How to Handle Evidence in the Design Process of Sustainable, Accessible and Health-Promoting Landscapes

2021 ◽  
Vol 13 (6) ◽  
pp. 3249
Author(s):  
Marie C. Gramkow ◽  
Ulrik Sidenius ◽  
Gaochao Zhang ◽  
Ulrika K. Stigsdotter
Keyword(s):  
Design Process ◽  
Process Model ◽  
Design Solution ◽  
Design Criteria ◽  
Evidence Based ◽  
Design Program ◽  
Evidence Collection ◽  
Health Promoting ◽  
Development Goals ◽  
Programming Step

The work of landscape architects can contribute to the United Nation’s Sustainable Development Goals and the associated ‘Leave no one behind’ agenda by creating accessible and health-promoting green spaces (especially goals 3, 10 and 11). To ensure that the design of green space delivers accessibility and intended health outcomes, an evidence-based design process is recommended. This is a challenge, since many landscape architects are not trained in evidence-based design, and leading scholars have called for methods that can help landscape architects work in an evidence-based manner. This paper examines the implementation of a process model for evidence-based health design in landscape architecture. The model comprises four steps: ‘evidence collection’, ‘programming’, ‘designing’, and ‘evaluation’. The paper aims to demonstrate how the programming step can be implemented in the design of a health-promoting nature trail that is to offer people with mobility disabilities improved mental, physical and social health. We demonstrate how the programming step systematizes evidence into design criteria (evidence-based goals) and design solutions (how the design criteria are to be solved in the design). The results of the study are presented as a design ‘Program’, which we hope can serve as an example for landscape architects of how evidence can be translated into design.

Design of Human Machine Interface Based on ARM and Linux

2012 ◽  
Vol 241-244 ◽  
pp. 2714-2717
Author(s):  
Kun Zhang ◽  
Xi Wei Peng
Keyword(s):  
Low Cost ◽  
Hardware Design ◽  
Control Unit ◽  
Embedded Linux ◽  
Human Machine Interface ◽  
Device Drivers ◽  
Machine Interface ◽  
Micro Control Unit

In order to provide more convenient options for users and developers, the design of Human Machine Interface (HMI) based on ARM and embedded Linux is put forward. It makes full use of multiple peripherals of ARM and flexibility of Linux OS. Firstly, hardware design of the HMI system is presented. Then methods of embedded Linux transplanting and the device drivers programming are discussed. Finally, running results and applications of the designed HMI are considered. The design combines the features of traditional HMI and Micro Control Unit (MCU) HMI, including low cost, rich interfaces and easy programming.

Functional Design Methodology Based on Knowledge Databases Achievements

2015 ◽  
Vol 809-810 ◽  
pp. 865-870
Author(s):  
Manuela Roxana Dijmărescu ◽  
Dragoș Iliescu ◽  
Marian Gheorghe
Keyword(s):  
Design Process ◽  
Design Methodology ◽  
Design Solution ◽  
Functional Design ◽  
Design Solutions ◽  
Early Phases

Various architectures exposing certain phases of the design process have been developed. A closer analysis of the presented timelines is leading more to postpone the design solution rather than advancing it in the early phases. This paper advances a new architecture for the design process with the main emphasize on the product functional design, based on functional-constructive knowledge stored in databases, and on the principle of selecting design solutions in an incipient phase and developing them during the further design process stages.

Design and Analysis of Hybrid Fused Filament Fabrication Apparatus for Fabrication of Composites

2021 ◽  
Vol 14 ◽  
Author(s):  
Aniket Yadav ◽  
Piyush Chohan ◽  
Ranvijay Kumar ◽  
Jasgurpreet Singh Chohan ◽  
Raman Kumar
Keyword(s):  
Additive Manufacturing ◽  
Composite Materials ◽  
Design Process ◽  
Low Cost ◽  
Matrix Material ◽  
Fabrication Process ◽  
Layer By Layer ◽  
Fused Filament Fabrication ◽  
Composite Manufacturing ◽  
Tool Paths

Background: Additive manufacturing is the most famous technology which requires materials or composites to be fabricated with layer by layer deposition strategy. Due to its lower cost, higher accuracy and less material wastage; this technology is used in almost every sector. But in many applications there is a need to alter the properties of a product in a certain direction with the help of some reinforcements. With the use of reinforcements, composite layers can be fabricated using additive manufacturing technique which will enhance the directional properties. A novel apparatus is designed to spray the reinforcement material into the printed structures in a very neat and precise manner. This spray nozzle is fully automated, which works according to tool-paths generated by slicing software. The alternate deposition of layers of reinforcement and build materials helped to fabricate customized composite products. Objective: The objective of present study is to design and analyze the working principle of novel technique which has been developed to fabricate composite materials using additive manufacturing. The apparatus is numerically controlled by computer according to CAD data which facilitates the deposition of alternate layers of reinforcement and matrix material. The major challenges during the design process and function of each component has been explored. Methods: The design process is initiated after comprehensive literature review performed to study previous composite manufacturing processes. The recent patents published by different patent offices of the world are studied in detail and analysis has been used to design a low cost composite fabrication apparatus. A liquid dispensing device comprises a storage tank attached with a pump and microprocessor. The microprocessor receives the signal from the computer as per tool paths generated by slicing software which decides the spray of reinforcements on polymer layers. The spraying apparatus moves in coordination with the primary nozzle of the Fused Filament Fabrication process. Results: The hybridization of Fused Filament Fabrication [process with metal spray process has been successfully performed. The apparatus facilitates the fabrication of low cost composite materials along with flexibility of complete customization of composite manufacturing process. The anisotropic behaviour of products can be easily controlled and managed during fabrication which can be used for different applications.

Categorization of Information Loss During the Dissemination of Design Ideas

2018 ◽  
Author(s):  
Victoria Zhao ◽  
Conrad S. Tucker
Keyword(s):  
Engineering Design ◽  
Design Process ◽  
Information Source ◽  
Information Loss ◽  
Design Solution ◽  
Sources Of Information ◽  
Comprehensive Review ◽  
Engineering Design Process ◽  
Design Idea ◽  
Design Ideas

Information is transferred through a process consisting of an information source, a transmitter, a channel, a receiver and its destination. Unfortunately, during different stages of the engineering design process, there is a risk of a design idea or solution being incorrectly interpreted due to the nonlinearity of engineering design. I.e., there are many ways to communicate a single design idea or solution. This paper provides a comprehensive review and categorization of the possible sources of information loss at different stages of the engineering design process. Next, the authors present an approach that seeks to minimize information loss during certain stages of the engineering design process. The paper i) explores design process and dissemination methods in engineering design; ii) reviews prior work pertaining to these stages of the engineering design process and iii) proposes an information entropy metric that designers can utilize in order to quantify information loss at different stages of the engineering design process. Knowledge gained from this work will aid designers in selecting a suitable dissemination solution needed to effectively achieve a design solution.

Sign in / Sign up

Export Citation Format

Share Document