This paper presents the design and mechatronics implementation of a human stress detection system (HSDS) using a biomechanics approach. A simple, compact and easy to use system is developed and built on a 2-layer PCB....
This paper presents the design and mechatronics implementation of a human stress detection system (HSDS) using a biomechanics approach. A simple, compact and easy to use system is developed and built on a 2-layer PCB. It consists of two transducers, an LCD display and a micro-controller chip along with their respective interfacing circuits. After characterizing the two transducers, an algorithm was developed based on the measurements to classify the human stress condition. A simple classification rule that was adopted revealed that the system can detect 78% of the stressed examinees. The overall system success rate in identifying one of three states (relaxed, half stressed and stressed) was 60%. One major application for HSDS could be in the automotive industry were the driver condition is constantly monitored, and if a stress state is detected, the driver can be notified to stop the car and relax.
作者：
Wu-Ming ChenJian-Xun JinMustafa YavuzWu-Ming Chen (Center of Applied Superconductivity and Electrical Engineering
School of Automation Engineering University of Electronic Science and Technology of China Chengdu 610054 China Mechatronics Program
Mechanical Engineering Department University of Waterloo Waterloo ON N2L 3G1 Canada.) Jian-Xun Jin (Center of Applied Superconductivity and Electrical Engineering School of Automation Engineering University of Electronic Science and Technology of China Chengdu 610054 China.) Mustafa Yavuz (Mechatronics Program Mechanical Engineering Department University of Waterloo Waterloo ON N2L 3G1 Canada.)
The effects of intermediate mechanical deformation (IMD) and bending processing on Bi-2223 tapes were studied. Bi-2223 tapes were manufactured by powder-in-tube process with an IMD. Normal rolling (NR), pressing (P) a...
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The effects of intermediate mechanical deformation (IMD) and bending processing on Bi-2223 tapes were studied. Bi-2223 tapes were manufactured by powder-in-tube process with an IMD. Normal rolling (NR), pressing (P) and sandwich rolling (SR) with different reduction rate were used in the IMD. And there were an optimum reduction rate existing for the three MID techniques, at which critical current reached maximum. Critical current densities Jc of Bi-2223 crystals were measured with an applied magnetic field B respectively parallel to ab face and c axis. Relations of Jc dependences of reduction rate and superconducting materials density D were respectively studied and showed a Gaussian distribution law. Maximum pinning force density Fmax and irreversible magnetic field Birr were introduced to describe the effects of mechanical processing. Analysis of experimental results showed that Jc, Fmax and Birr were linear dependence on D. Obviously, increasing D was a vital way to enhance Jc. Bending experiments were performed for SR tapes sheathed by Ag and Ag/Sb and Ag/Mg alloy, respectively. Silver alloy sheathed tapes showed better bending properties than pure silver sheathed one. Therefore, silver alloy sheathed, optimum reduction rate of IMD, and increasing D for Bi-2223 tapes'' applications were important technical strategies to enhance their mechanical, electrical, and magnetic properties.
It is dangerous that a technician the inner parts of an oil tanker for defects and conditions because of many harmful gases, complex structures, etc. However, these inspections are necessary to many oil tankers of old...
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ISBN:
(纸本)9780889866652
It is dangerous that a technician the inner parts of an oil tanker for defects and conditions because of many harmful gases, complex structures, etc. However, these inspections are necessary to many oil tankers of old years. In this reason, we proposed the fundamental techniques of mobile robot for inspection of CAS in oil tanker. The developed CAS inspection mobile robot has four modules, a measurement module of oil tanker's thickness, a corrosion inspection module, a climbing module of the surface on a wall, and a monitoring module. In order to getting over at a right angled path, the driving control algorithm was developed. And, magnetic wheels were used to move the surface of a wall. This study constructed a communication network (Bluetooth) and the monitoring program to operate the developed mobile robot from remote sites. In order to evaluate the inspection ability, the experiments using developed mobile robot have been conducted.
This paper describes the application of real time vision system for dynamic tracking of moving objects, using image motion. The study encompasses experimental development of an Intelligent system that works in ordinar...
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This paper presents a study of the modelling of a Minibaja vehicle. The full-scale nonlinear model of the vehicle was performed with a commercial software. Additionally, some active suspension control laws have been t...
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This paper presents a study of the modelling of a Minibaja vehicle. The full-scale nonlinear model of the vehicle was performed with a commercial software. Additionally, some active suspension control laws have been tested to emphasize the performance of the proposed model.
In this paper the authors study the applicability of Artificial Neural Networks for the modelling of a widely used particular welding process in automotive industry: pulsed gas metal welding process (GMAW-P). Applying...
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In this paper the authors study the applicability of Artificial Neural Networks for the modelling of a widely used particular welding process in automotive industry: pulsed gas metal welding process (GMAW-P). Applying this artificial intelligence technology requires the introduction of input and output data to the network. To achieve this, an experiment was designed and performed. The main functions of the proposed model are: to simulate the process for purposes of training operators;to improve welding process performance by identifying regions that are insensible to variations on input parameters;and finally to increase the flexibility of a robotic welding cell. The concrete benefits obtained from the GMAW-P process model development are: optimization of critical variables of the welding process, support for development of virtual process and prototypes, definition of a robust welding procedure, quick response to product change and support in welding training.
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