Embedded dual-computer redundant system design with-high reliability and heterogeneous structure

2009 ◽  
Vol 29 (8) ◽  
pp. 2143-2145
Author(s):  
Meng-hua MAN ◽  
Liang YUAN ◽  
Guo-liang DING ◽  
Zheng-quan JU ◽  
Liang SONG
Keyword(s):  
System Design ◽  
High Reliability ◽  
Heterogeneous Structure ◽  
Redundant System

Evolution of Fault Self-Repairing Circuit with High Reliability

2013 ◽  
Vol 462-463 ◽  
pp. 654-657
Author(s):  
Jian An Lou ◽  
Yang Li ◽  
Jian Hua Yu
Keyword(s):  
Evolutionary Algorithm ◽  
System Design ◽  
Continuous Improvement ◽  
High Reliability ◽  
Structure And Function ◽  
Digital System ◽  
Electronic Systems ◽  
Electromagnetic Environment ◽  
Digital System Design ◽  
And Function

With the continuous improvement of the complexity of the microelectronic system, its reliability risk is becoming more and more obvious. In order to improve the reliability of electronic systems in complex electromagnetic environment, this paper proposes a new fault self-repairing method; the idea is to realize controllable silicon evolution on the FPGA. A MicroBlaze CPU and VRC array are designed, and the CPU runs the evolutionary algorithm to configure the VRC array, dynamically changing the structure and function of the circuit, so as to obtain high reliability of the digital fault self-repairing circuit. Evolving fault self-repairing technology provides a new way for the high reliability of the digital system design.

Based on Vector Control of All-Electric Injection Molding Machine Control System Design

2012 ◽  
Vol 490-495 ◽  
pp. 2210-2214
Author(s):  
Ming Hui Li ◽  
Zheng Qi Li
Keyword(s):  
Control System ◽  
Injection Molding ◽  
Vector Control ◽  
System Design ◽  
High Reliability ◽  
Permanent Magnet Synchronous Motor ◽  
Control System Design ◽  
Molding Machine ◽  
Injection Molding Machine ◽  
Machine Control

According to the all-electric injection molding machine control system requirements, the vector control applied to the permanent magnet synchronous motor control, we propose a fully electric injection molding machine control system design, through analysis and research that can further improve the program precise all-electric injection molding machine control, its stability, high reliability, to better meet the all-electric injection molding machine of precision and stability requirements.

High Reliability Electronic Throttle System Design

2003 ◽  
Author(s):  
Eiji Hashimoto ◽  
Tetsuya Ishiguro ◽  
Yuji Yasui ◽  
Shusuke Akazaki
Keyword(s):  
System Design ◽  
High Reliability ◽  
Electronic Throttle

Regional Prevention System Design for the Photoelectric Sensor

2011 ◽  
Vol 268-270 ◽  
pp. 1874-1878
Author(s):  
Ling Qiang Wang ◽  
Chen Xi Yan
Keyword(s):  
System Design ◽  
High Reliability ◽  
Complex Structure ◽  
Security System ◽  
Office Buildings ◽  
User Needs ◽  
Alarm System ◽  
Prevention System ◽  
Photoelectric Sensor

Regional safety alarm system is a security system widely used in enterprises and institutions, residential districts and office buildings, which has a complex structure and higher costs. This design is mainly to use SCM and some simple photoelectric sensors to achieve a regional safety alarm system with high reliability and low misoperation, and its size can be easily extended according to user needs.

The Research on Dynamic Friction Tester of Pavement

2010 ◽  
Vol 40-41 ◽  
pp. 711-716
Author(s):  
Deng Feng Li ◽  
Li Min Guan ◽  
Qi Ming Zhang ◽  
Cai Xia Zhao
Keyword(s):  
Friction Coefficient ◽  
System Design ◽  
Control Method ◽  
High Reliability ◽  
Low Cost ◽  
Skid Resistance ◽  
Dynamic Friction ◽  
Slip Ratio ◽  
Measuring Device ◽  
Friction Tester

As to the pavement test, with the slip-based control method, a new pavement mobile type of measuring device was designed to obtain the continuous friction coefficient parameters in this paper. The operation principles and the concrete completion methods of slip ratio control were introduced in detail. 89C52 was adopted as the center chip to achieve the system design of hardware and software. After the pavement tests, the prototype is of high reliability, low cost, and simple operation, meanwhile, meets the requirements of pavement skid resistance.

Lightweight System Design Optimization of High Reliability Compact Air Independent PEMFC Power Systems for Aerial and Space Vehicles

2016 ◽  
Author(s):  
Robert Utz ◽  
Bob Wynne ◽  
Scott Ferguson ◽  
Mike Miller ◽  
Bob Sievers ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Energy Density ◽  
Power Systems ◽  
System Design ◽  
High Reliability ◽  
Pem Fuel Cell ◽  
Operating Conditions ◽  
Membrane Electrode ◽  
Fuel Cell Stack ◽  
Continuous Power

Demand has increased for high reliability mobile power systems for space and aerial vehicles in military, scientific, and commercial applications. Batteries have traditionally supplied power in these applications, but the desire to extend mission duration and expand vehicle capabilities would require an energy density increase that is difficult for batteries to achieve. The use of pure hydrogen and oxygen reactants with high efficiency membrane electrode assemblies and novel design concepts for the fuel cell stack bipolar plates and balance of plant (BOP) components has the potential to meet the desired system energy density. This paper reviews subsystem and integrated testing of a lightweight PEM fuel cell system design for implementation into an aerial vehicle or space mission. The PEM fuel cell stack is designed for optimum efficiency at 2 kWe of power during standard operation with the capacity to provide over 5 kWe of continuous power. The passive flow control and water management subsystems provide the gas flow and humidification necessary for efficient operation and remove excess water produced by the stack under all operating regimes. Work is in progress to test the fully integrated system under expected operating conditions for potential lightweight PEMFC applications.

Evolving Design Model Synchronization for System Health Management Using Laplace Approximation

2014 ◽  
Author(s):  
Pingfeng Wang ◽  
Adebayo O. Adewunmi ◽  
Zequn Wang
Keyword(s):  
System Design ◽  
Model Updating ◽  
Health Management ◽  
High Reliability ◽  
Laplace Approximation ◽  
Design Model ◽  
Model Parameters ◽  
Design Models ◽  
Model Synchronization ◽  
Engineered Systems

Lifecycle health management plays an increasingly important role in realizing resilience of aging complex engineered systems since it detects, diagnoses, and predicts system-wide effects of adverse events, therefore enables a proactive approach to deal with system failures. To address an increasing demand to develop high-reliability low-cost systems, this paper presents a new platform for operational stage system health management, referred to as Evolving Design Model Synchronization (EDMS), which enables health management of aging engineered systems by efficiently synchronizing system design models with degrading health conditions of actual physical system in operation. A Laplace approximation approach is employed for the design model updating, which can incorporate heterogeneous operating stage information from multiple sources to update the system design model based on the information theory, thereby increases the updating accuracy compared with traditionally used Bayesian updating methodology. The design models synchronized over time using sensory data acquired from the system in operation can thus reflect system health degradation with evolvingly updated design model parameters, which enables the application of failure prognosis for system health management. One case study is used to demonstrate the efficacy of the proposed approach for system health management.

scholarly journals Research and Analysis of Cooling System for Diesel Locomotive

2018 ◽  
Vol 1 (1) ◽  
Author(s):  
Wenbin Qiu
Keyword(s):  
System Design ◽  
Heat Dissipation ◽  
Cooling System ◽  
Design Method ◽  
High Reliability ◽  
Water System ◽  
Cooling Water ◽  
Diesel Locomotive ◽  
System Pressure ◽  
Conventional Cooling

With the continuous development of diesel locomotives in the direction of single power, the heat dissipation ofthe locomotive cooling system is getting bigger and bigger, and its performance directly affects the economy andreliability of the locomotive. Due to the limitation of locomotive axle load and structural space size, there is a greattechnical problem between the cooling system design and the arrangement of the cooling device and the overalllayout of the locomotive. The increase in the number of radiators, making the number of cooling system processesare correspondingly increased, resulting in locomotive cooling system water resistance and water system pressure aregreatly improved. The traditional cooling system form and the radiator structure are diffi cult to meet the developmentrequirements of high power locomotive. Based on the conventional cooling system design method, a multi-processradiator is proposed. The multi-process cooling system has the advantages of high cooling effi ciency, simple structure,small auxiliary power consumption of the pump and high reliability of the cooling system components. In this paper,the cooling system and its function, the existing cooling technology and the multi-process radiator are studied andanalyzed, and the three-process radiator and the single-process radiator are tested and compared. In this paper, a newmulti-process radiator structure scheme is proposed for the design requirements of CKD9 diesel locomotive coolingsystem. The program eff ectively uses the radiator cooling water and cooling air temperature diff erence, to achieve thepurpose of increasing heat dissipation.

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