The NASA Mars Sojourner rover inspired this project
. I followed the mission
with great enthusiasm and witnessed a giant leap in robotics that day
it began roaming the Martian terrain and sending images back to earth.
Though I was in awe when the Viking missions of the 1970’s were in
progress, we didn’t see that near real-time interaction with the craft
A control system is a collection of components working together under the direction of
some machine intelligence. In most cases, electronic circuits provide the intelligence,
and electromechanical components such as sensors and motors provide the interface to
the physical world. A good example is the modern automobile. Various sensors supply
the on-board computer with information about the engine’s condition. The computer
then calculates the precise amount of fuel to be injected into the engine and adjusts the
ignition timing. T...
The scope of this electrical installation handbook is to provide the designer and
user of electrical plants with a quick reference, immediate-use working tool.
This is not intended to be a theoretical document, nor a technical catalogue,
but, in addition to the latter, aims to be of help in the correct definition of
equipment, in numerous practical installation situations.
The Network Access Quarantine Control feature of Microsoft® Windows Server™ 2003 delays normal remote
access to a private network until the configuration of the remote access computer has been examined and
validated by an administrator-provided script. This paper describes the components of Network Access Quarantine
Control, how it works, and how to deploy it using Windows Server 2003 remote access servers, the Connection
Manager Administration Kit, and, optionally, Internet Authentication Service...
This subcourse is designed to provide instruction on the concept and operation of the basic components of the hydraulic system. It also describes the various components of a typical hydraulic system, their construction and functions, and their relationship to each other.
Computers now form an integral part of most real-time control systems.With the advent of the
microprocessors and microcontrollers in the last few decades the use of computers in control
applications has been ever growing. Microcontrollers are single-chip computers which can be
used to control real-time systems. Such controllers are also referred to as embedded real-time
computers. These devices are low-cost, single-chip and easy to program.
Benefits of the PLC compared to conventional solutions such as electrical, electropneumatic or electrohydraulic solutions
Functions of system components of a PLC
Commissioning a PLC
Application criteria for mechanical, optical, capacitive and inductive proximity sensors
Sequence control and parallel logic
Systematic programming of a PLC in accordance with international standard IEC 1131-3
IEC 1131-3 programming languages: Function Block Diagram, Ladder Diagram, Statement List, Structured Text and Sequence Language
A PLC (Festo FC34, SIMATIC S7-300 or Allen ...
Temperature measurement and control are vital in many industrial processes.
Accurate control of the temperature is essential in nearly all chemical processes.
In some applications, an accuracy of around 5-10~ may be acceptable. There
are also some industrial applications which require better than 4-1 ~ accuracy.
CakePHP Framework: Cách viết 1 component trong CakePHP
.Component là những thành phần mở rộng trong CakePHP Framework. Cho phép người sử dụng tùy biến và sử dụng nó linh hoạt. Chẳng hạn như một số component hữu ích trong cakePHP mà chúng ta thường dùng như: ACL (phân quyền), mail, time, security,...
Ngoài ra, để thực hiện những mục đích riêng biệt. CakePHP cũng cho phép người sử dụng tự thêm thắt hoặc viết riêng một component để phục vụ cho ứng dụng của mình.
The amount of knowledge an electrician must possess
to be able to install and troubleshoot control systems in
today’s industry has increased dramatically in recent
years. A continuous influx of improved control components
allows engineers and electricians to design and
install even more sophisticated and complex control
systems. Industrial Motor Control presents the solidstate
devices common in an industrial environment.
Most research in robotics centers on the control and equations of motion for
multiple link and multiple degree-of-freedom armed, legged, or propelled systems. A
great amount of effort is expended to plot exacting paths for systems built from
commercially available motors and motor controllers. Deficiencies in component and
subsystem performance are often undetected until the device is well past the initial design
A PLC or programmable controller is a computer based solid state device that controls industrial equipment and processes.
Initially designed to perform the logic functions executed by relays, drum switches and mechanical timer/counters, it has
been extended to analog control as well.
A typical PLC system consists of a processor and an input/output system all mounted in a rack like system. The PLC system
is a cost effective solution for applications with a high ratio of digital to analog points in a system.
Enterprise Manager is Oracle’s single, integrated solution for administering and
monitoring targets that are based on the Oracle technology stack. See "Certified
Enterprise Manager Targets" for a list of Oracle targets and components that Enterprise
Manager can manage. This guide is written for Oracle and system administrators who want to install and
configure Oracle Enterprise Manager. You should already be familiar with Oracle and
the administrative tasks you want to perform.
This subcourse is designed to provide instruction on the concept and operation of the basic components of the hydraulic system. It also describes the various components of a typical hydraulic system, their construction and functions, and their relationship to each other. When the term hydraulics is applied to aircraft, it means a method of transmitting power from one location to another through the use of a confined fluid.
Custom controls and Web Parts can make you more productive by enabling you to create re-usable components
for your WebForms. You can package up a piece of your user interface and re-use it within your
Web site or across many Web sites. But that’s only one way that these controls make you more productive.
If you’ve ever had an ASP.NET control that you wished worked slightly differently, you can now
create the control that you want. When you build your own custom controls and Web Parts, you can
have the control do as much (or as little) as you want....
This section describes heating, ventilating, and air
conditioning (HVAC) systems and discusses characteristics and
components of automatic control systems. Cross-references
are made to sections that provide more detailed information.
A correctly designed HVAC control system can provide a
comfortable environment for occupants, optimize energy cost
and consumption, improve employee productivity, facilitate
efficient manufacturing, control smoke in the event of a fire,
and support the operation of computer and telecommunications
(BQ) Ebook Simatic Component based Automation Commissioning Systems is designed to enable you to commission the sample plant described. It is directed towards persons who work in the field of configuration, missioning and servicing automation systems.
Having discussed individual components of industrial servo drives from an operation point of view and a mathematical descriptive point of view, the next step is to combine these components into a block diagram for the complete servo drive. The block diagram is a powerful method of system analysis. In the block diagram each component in a servo system can be described by the ratio of its output to input. Thus the output of one component is the input to the next component.
In this second edition of Industrial Servo Control Systems, the chapters have been updated and expanded and a new chapter has been added on servo compensating techniques. The book continues to be dedicated to the practicing engineer making the transition from academic theory to the realworld solution of engineering problems related to the application of servo drives to industrial machines. Part I focuses on the evolution and classiﬁcation of servos, with descriptions of servo drive actuators, ampliﬁers, feedback transducers, performance, and troubleshooting techniques.
The perspective of this book is that the steady - state separation model should
also be the basis for developing the control confi guration for the column. Yes,
a steady - state model! Although the technology to do so is widely available,
extending to a dynamic model is not necessary for developing the column
control confi guration.
The most crucial component of every process control application is developing
the piping and instrumentation (P & I) diagram that defi nes the control
confi guration for the process and for each unit operation, such as distillation,
within that process.