We review the networked mobile robot systems and suggest taxonomy based on three levels of control commands. The performance analysis result shows that direct has potential difficulty for implementation due to unpredicted transmission delay network. To tackle this problem, we have suggested behavior-programming concept avoid disturbances Internet latency. For purpose, primitive local intelligence is grouped into motion planner, executor, assistant, where each a group treated as an agent....

Intelligent robotic systems have been extensively applied in factory automation, space exploration, intelligent buildings, surgery, military service, and also our daily life. Various remote control methods performed for systems, such as radio, microwave, computer networks, etc. Nowadays, the network services broadly used life, FTP, Telnet, World Wide Web, e-mail, Consequently, it is very convenient to use Internet robot, users will increase future. In past few years, many researchers using a...

Abstract Track irregularity from rail alternate side wear is manifested as uneven waveforms alternating in the left and right rails with equal intervals, which will cause carbody sway behaviour of railway vehicles greatly influences passenger comfort. In this work, mechanism due to track possible solutions issue were studied by field testing numerical calculation approaches. First, an urban transit train introduced full-scale tests, through characterized formatted are presented. Then,...

A simple and more-accurate nonlinear rubber spring model is proposed for railway vehicle dynamics analysis. The characteristics of dynamic stiffness damping are investigated through both simulations lab tests with various displacement amplitude frequency. Similar to the existing models, contains three components, an elastic force, damper force Maxwell element, which used present frequency- amplitude-dependence. has four inputs, determined by test results. In order utilise all results under...

In order to solve the problem of low accuracy and premature falling into local optimal solution when multi-sensor is measuring accurate targets. this paper, a mathematical model detection coalition proposed established, improved whale algorithm formed. The uses random or seeking agent, combined with forbidden avoid prematurely. And then air combat environment simulated after used problem. Under same conditions, comprehensive evaluation both gray wolf ant colony inferior that algorithm,...

The dynamic performance of a high-speed railway vehicle operating in low-temperature environments was studied through simulations using stochastic, parameter-based, model. This model considered the random distribution design and operational parameters due to variations conditions manufacturing errors, as well maintenance procedure. effects ambient temperature on properties suspensions, such rubber-made elements, hydraulic dampers air springs, were determined laboratory tests. results suggest...

The aim of this paper is to establish a simple and accurate nonlinear model yaw damper for the dynamic numerical simulation high-speed trains. An improved proposed based on traditional Maxwell model. It comprises piecewise linear force–displacement spring force–velocity in series. These inputs are retrieved from performance tests damper, curves further modified improve modelling accuracy according test results. can accurately simulate damper's stiffness damping characteristics with respect...

The security system of home and building is an important issue to human daily life. We develop a multiple remote interface (MRlSS), that integrated with intelligent robot (ISR), supervise computer, GSM module, RF appliances control module. can detect abnormal dangerous situation notify us through Internet, or send the message cellular phone MRISS appliance module using wireless interface. user cell too. feedback reaction result phone. First, we communication protocol in MRISS, design robot,...

In this article, a two-degree-of-freedom model for the disc brake system is set up by considering vertical motion of unit and pitch bogie frame, sliding friction interface between lining included in model. Using Hurwitz determinants, an algebraic criterion determining Hopf bifurcation point proposed. The vehicle speed at defined as critical where equilibrium position loses stability limit cycle emerges. order to investigate system, parametric studies are undertaken. It shown that mass unit,...

Wheel-rail geometric parameters are crucial for determining wheel wear in high-speed trains. Under the action of a wheel-rail load, both and rail suffer elastic deformation, which affects contact relationship further influences profile its evolution. In this study, field test was conducted on train operating at 250 km/h, worn profiles curves were continuously measured one reprofiling cycle. Subsequently, vehicle dynamics model is built using prediction based integrated USFD algorithm. model,...

This paper introduces the intelligent security robot developed by National Chung Cheng University (NCCU). The is named "Security Warrior" and consists of six systems including vision, motion, arms, power estimation, remote supervise sensory systems. vision system used to carry out human detection tracking. motion built using embedded achieve planning in real time. arms are useful devices for robot. Equipped with our can perform more tasks such as gesture expression or grasp functions. In...

The damping ratios of suspension systems on a railway vehicle were estimated in terms the free-decay responses obtained by applying logarithmic-decrement method to data wedge tests. characteristics measured both for motor and trailer cars experiencing either tare loading (AW0) or crush (AW3) condition inflated deflated air springs. considered cases included bouncing, pitching, rolling lateral motions. A dynamic model was established simulation results compared with experimental results. For...

A generalized railway vehicle model is built to study the coupled vibrations between a flexible car body (CB) and equipment suspended beneath it by taking complex suspension characteristics of into consideration. Associated theories for determination parameters CB are summarized systematically, including vibration isolation methods dynamic absorber (DVA) both undamped damped cases. The then grouped four categories weight, location, excitation that subjected to. general principle proposed...

With rapid growth of computer technology, Internet-based teleoperation robotic systems has created new opportunities in resources sharing, long-distance learning, and remote experimentation. This paper presents a basic architecture its functional components for control systems. A variety modes existing were surveyed the Internet transmission latency was discussed. An illustrative application used to demonstrate effectiveness proposed scheme. Experimental results clearly indicate that...

Investigating the seismic behavior and safety of structures subjected to near-fault ground motions is vital. Cases involving damages or failure during earthquakes provide valuable opportunities achieve aforementioned goal, as these are actual results in situ tests full-scale structures. The Baihua Bridge, a concrete continuous-curved girder bridge, was located at epicenter area 2008 Wenchuan earthquake China, it collapsed partially quake. This study focuses on exploring collapse mechanism...