An interactive layout design system with real-time logical verification and extraction of layout parasitics

10.1109/4.308 ◽  
1988 ◽  
Vol 23 (3) ◽  
pp. 698-704 ◽  
Author(s):  
I. Rugen ◽  
C. Schrock-Pauli ◽  
M. Gerbershagen
Keyword(s):  
Real Time ◽  
Layout Design ◽  
Design System

A NEW LAYOUT DESIGN SYSTEM FOR MULTICHIP MODULES

1995 ◽  
Vol 06 (03) ◽  
pp. 509-538 ◽  
Author(s):  
BERNHARD M. RIESS ◽  
ANDREAS A. SCHOENE
Keyword(s):  
Efficient Algorithm ◽  
State Of The Art ◽  
Layout Design ◽  
The State ◽  
Design System ◽  
Multichip Modules ◽  
Analytical Technique ◽  
Cut Method ◽  
First Time ◽  
Three Components

A new layout design system for multichip modules (MCMs) consisting of three components is described. It includes a k-way partitioning approach, an algorithm for pin assignment, and a placement package. For partitioning, we propose an analytical technique combined with a problem-specific multi-way ratio cut method. This method considers fixed module-level pad positions and assigns the cells to regularly arranged chips on the MCM substrate. In the subsequent pin assignment step the chip-level pads resulting from cut nets are positioned on the chip borders. Pin assignment is performed by an efficient algorithm, which profits from the cell coordinates generated by the analytical technique. Global and final placement for each chip is computed by the state-of-the-art placement tools GORDIANL and DOMINO. For the first time, results for MCM layout designs of benchmark circuits with up to 100,000 cells are presented. They show a small number of required chip-level pads, which is the most restricted resource in MCM design, and short total wire lengths.

An Automated Layout Design System for Industrial Plant Piping

1991 ◽  
Author(s):  
N. Narikawa ◽  
S. Fujimoto ◽  
N. Sasaki ◽  
S. Azuma
Keyword(s):  
Expert Knowledge ◽  
Routing Algorithm ◽  
Layout Design ◽  
Memory Storage ◽  
Industrial Plant ◽  
Design System ◽  
Small Computer ◽  
Phase Step ◽  
New Approach ◽  
Weak Constraints

Abstract This paper describes a new approach to an automated layout design system for industrial plant piping. The routing system, which is the main part of this layout system, is composed of three steps, according to the practical layout design process. By dividing the layout design into the optimal routing phase (Step 1, Step 2) and the arrangement phase (Step 3), it is possible to design without depending on the routing order, and with small computer memory storage capacities. The optimal route is obtained by using the routing algorithm and heuristic search, based on expert knowledge. The arrangements are made by applying the enumeration method, taking the strong and weak constraints into account.

Development of an Adaptive Layout Design System for ELV (End-of-Life Vehicle) Dismantling Plant

2014 ◽  
Vol 510 ◽  
pp. 133-138 ◽  
Author(s):  
Young Tae Sohn ◽  
Myon Woong Park
Keyword(s):  
Environmental Pollution ◽  
End Of Life ◽  
Software Tool ◽  
Resource Depletion ◽  
Industrial Applications ◽  
Layout Design ◽  
Interactive Design ◽  
Design System ◽  
Valuable Resource ◽  
Effective Implementation

In accordance with the increased awareness of resource depletion and environmental pollution, the importance of eco-friendly disposal and recycling of vehicles as a potentially valuable resource is emphasized; in particular, this is important as automobile production and demand continues steadily. In this paper, a systematic dismantling system is proposed to minimize the quantity of ASR by dismantling End-of-Life Vehicles (ELVs) rationally and efficiently. An adaptive layout design system is also provided to aid for the effective implementation of the proposed dismantling system to industrial applications. The proposed dismantling system is based on eco-friendly dismantling and improves not only the recyclability of ELVs, but also the efficiency of the dismantling operations. The adaptive layout design system is a software tool, which allows a layout of a dismantling plant according to the specific requirements of the customers, and estimates the overall figures and capacity of an intended plant by simulation of the dismantling process. This interactive design system can be useful for testing alternative layouts of a dismantling plant customized to meet particular recycling needs.

A Layout Design System for Complex Made-to-order Products

1996 ◽  
Vol 7 (4) ◽  
pp. 363-375 ◽  
Author(s):  
N. SMITH ◽  
W. HILLS ◽  
G. CLELAND
Keyword(s):  
Layout Design ◽  
Design System

scholarly journals A study on the layout design of the domestic portal site APPS

2018 ◽  
Vol 7 (3.3) ◽  
pp. 115
Author(s):  
Hyun JuLee
Keyword(s):  
Real Time ◽  
Smart Phone ◽  
Weather Forecast ◽  
Layout Design ◽  
Search Window ◽  
Main Menu ◽  
The Real ◽  
Portal Site ◽  
Main Page ◽  
Left And Right

Background/Objectives: Even just a few years ago, we took care of a lot of things through PC, from writing simple documents to checking our email and doing online shopping. But many of these tasks are now done on smart phones.Methods/Statistical analysis: It has become difficult to imagine a world without smart phones these days. This has led to all websites considering a smart phone environment when designing their sites. The layout which has the greatest range of change depending on the screen size is now an important element in design. As such, a comparative analysis was conducted on the layout design of the main screens of Naver and Daum, two of the leading portals in Korea.Findings: The layout of the mobile portal site by Naver and Daum had similar menus without a big difference. However, there was a slight difference to the menu laid out around the search window. First, Naver had the search window located immediately below the site name and the menu was laid out so that news could be viewed by category. The menu can be moved left and right to enter into the categories. Major articles are shown under the menu. Scrolling the entire window up and down allows you to move to a screen to see more information. Under major articles are photos considered hot topics under ‘hot menu items’. Below the photo is weather forecast in a large font size, which would be of interest to many users. Daum, too, has the search window under the main logo but unlike Naver, has the real-time search ranking under the search menu instead of the main menu. In addition, the main menu located under the real time search words draw attention with its head font and color of the logo. This can be moved left and right to expand the menu. The remaining structure is similar to that of Naver, consisting of major news, hot topic photos and weather forecasts.Improvements/Applications: There were almost no ornamental elements on the main page of Naver or Daum. There were only text and information, as well as related photos.  

Key Technologies of Development of Intelligent Overall Layout Design System for Bus Body

2011 ◽  
Vol 121-126 ◽  
pp. 928-932
Author(s):  
Jing Xin Chen ◽  
Jing Xian Chen ◽  
Jing Zhang
Keyword(s):  
Three Dimensional ◽  
Layout Design ◽  
Parametric Modeling ◽  
Secondary Development ◽  
Design System ◽  
Database Access ◽  
Body Development ◽  
Development Technology ◽  
Bus Body ◽  
Function Module

Based on the requirements and characters of overall layout design of bus body, development process, overall structure, function module and deduction network of Intelligent Overall Layout Design System for Bus Body were built. It is illustrated systematically how the object-oriented modeling technology, deduction technology based on knowledge, secondary development technology based on CATIA, three dimensional parametric modeling methods and technology of database access etc were applied to the design and development of the system. The function of the system was verified through a case of specific bus body overall layout design.

Implementation and Analysis of a Mechanics Simulation Module for Use in a Conceptual Design System

2000 ◽  
Author(s):  
Johan Jansson ◽  
Imre Horváth ◽  
Joris S. M. Vergeest
Keyword(s):  
Real Time ◽  
Conceptual Design ◽  
Time Complexity ◽  
Design System ◽  
Mechanics Model ◽  
Time Simulation ◽  
Expected Performance ◽  
System Time ◽  
Better Than ◽  
Simplified Form

Abstract Previously, we have described the theory of a general mechanics model for non-rigid solids (Jansson, Vergeest, 2000). In this paper, we will describe and analyze the implementation, i.e. algorithms and analysis of their time complexity. We will reason that a good (better than O(n2), where n is the number of elements in the system) time complexity is mandatory for a scalable real time simulation system. We will show that, in simplified form, all our algorithms are O(n lg n). We have not been able to formally analyze the algorithms in non-simplified form, we will however informally discuss the expected performance. The entire system will be empirically shown to perform slightly worse than O(n lg n), for a specific range and typical input. We will also present a working prototype implementation and show it can be used for real time evaluation of reasonably complex systems. Finally we will reason about how such a system can be used in the conceptual design community as a simulation of traditional design tools.

4MDS: A Geometric Constraint Based Motion Design Software for Synthesis and Simulation of Planar Four-Bar Linkages

2014 ◽  
Author(s):  
Anurag Purwar ◽  
Abhijit Toravi ◽  
Q. J. Ge
Keyword(s):  
Real Time ◽  
Geometric Constraints ◽  
Geometric Constraint ◽  
Design System ◽  
Dimensional Synthesis ◽  
Complete Control ◽  
Dimensional Changes ◽  
Design Software ◽  
Four Bar Linkage ◽  
Motion Design

This paper presents our recent work on designing and developing a geometric constraint based motion design software system for planar four-bar linkages. Given a motion task, the software computes possible four-bar linkage topologies as well as its dimensions. This capability to analyze the given task and find the best type of the linkage and the dimensions simultaneously sets it apart from any other linkage design software. The Four-Bar Motion Design System (4MDS) makes the synthesis and simulation capabilities available to mechanism designers in an intuitive graphical user interface (GUI) environment. Instead of taking a black box approach to mechanism design, wherein the user simply enters the motion requirements and the software outputs parameters of mechanisms, this software facilitates a dialog with the designer by providing various paths to simulation and synthesis in a design session. The designer has complete control over the specification of motion task, interactive tweaking of the motion, choice of linkage topology computed, dimensional changes, and their apparent effect on motion, all done in real time. This interactivity enhances designers kinematic experience. The underlying theoretical foundation of this paper is based on our earlier work on a task-driven approach to unified type and dimensional synthesis of planar four-bar linkage mechanisms. Instead of treating a planar four-bar mechanism as a set of connected rigid links and joints, we treat them as line or circle constraint generators. With that view, the synthesis problem is reduced to extracting geometric constraints hidden in a given motion task and the simulation is reduced to assembling constraints realizable by mechanical dyads. The algorithm employed is simple and efficient and permits real-time computation, and thus precludes using a limiting database-oriented approach. This tool should make innovation of mechanical motion generating devices accessible to novice and experienced designers alike.

scholarly journals Layout Design of Human-Machine Interaction Interface of Cabin Based on Cognitive Ergonomics and GA-ACA

2016 ◽  
Vol 2016 ◽  
pp. 1-12 ◽  
Author(s):  
Li Deng ◽  
Guohua Wang ◽  
Suihuai Yu
Keyword(s):  
Ant Colony Algorithm ◽  
Fitness Function ◽  
Layout Design ◽  
Design System ◽  
Human Machine Interaction ◽  
Cognitive Characteristics ◽  
Cognitive Ergonomics ◽  
Drilling Rig ◽  
Interaction Interface ◽  
Machine Interaction

In order to consider the psychological cognitive characteristics affecting operating comfort and realize the automatic layout design, cognitive ergonomics and GA-ACA (genetic algorithm and ant colony algorithm) were introduced into the layout design of human-machine interaction interface. First, from the perspective of cognitive psychology, according to the information processing process, the cognitive model of human-machine interaction interface was established. Then, the human cognitive characteristics were analyzed, and the layout principles of human-machine interaction interface were summarized as the constraints in layout design. Again, the expression form of fitness function, pheromone, and heuristic information for the layout optimization of cabin was studied. The layout design model of human-machine interaction interface was established based on GA-ACA. At last, a layout design system was developed based on this model. For validation, the human-machine interaction interface layout design of drilling rig control room was taken as an example, and the optimization result showed the feasibility and effectiveness of the proposed method.

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