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Sunday, July 24, 2011

Yogyakarta Students Join Robot Contest in Taman Pintar Yogyakarta

Hundreds of students show ingenuity in Yogyakarta assemble robot in Taman Pintar Yogyakarta on Saturday (1 / 11). Smart Robot Contest with the theme 'I'm Proud Robot Pintar Yogyakarta' was attended by 90 teams from junior high and high school students / K as the city of Yogyakarta. Mayor opened the contest Yogyakarta H. Herry Zudianto, the Mayor hopes that events like this can provide a form of expression for the gifted students to develop their creativity.
 
According to the Head of Unit Taman Pintar, Dra Christina Tri Maryatun, Activities Robot Contest was held in line with the goal of Smart Park as a means of learning science for students, supports educational curricula, and assist teachers in developing teaching in science and as a form of activity that could support the vision Smart Park as a subordinate expression, appreciation and creation science in a fun atmosphere.

Expected applications of science and technology activities for the students, besides functioning as a means of learning about robotics for students, also supports the image as a cultural city of Yogyakarta, a city of education and student city

The competition is divided into several categories: Junior, Senior and Expert. Junior category is intended to equalize wheeled robot for the search light (LSR), senior category is intended to pursue a line (line follower) and category expert for the wheeled robot to pursue the line (line follower) whose construction has been using automation with microcontroller applications.


source: http://tourism.jogja.go.id 

Posted on 5:27 PM / 8 komentar / Read More

Sunday, July 10, 2011

News: Indonesia Intelligent Robot Contest (KRCI) 2011

After a few months ago to discuss some robot contests such as the RoboCup 2011 in Istanbul and the RoboCup 2010 in Singapore. Now turn to discuss the robot contest in their own country, namely Indonesia Indonesia Intelligent Robot Contest.
Intelligent Robot Contest Indonesia (KRCI) held the first held in 2004 by the Directorate General of Higher Education (Higher Education). Previous Higher Education also held a similar event called Indonesian Robot Contest (KRI).
The main reason that pushed Higher Education held an event like this which is to encourage the mastery of advanced technology for the engineering students in Indonesia. After that the selected entries can be adapted to real life which can certainly facilitate the work.

Posted on 10:20 AM / 3 komentar / Read More

Thursday, June 30, 2011

Physical Configuration: Robot and Its Classification

Robot and Its Classification

 picture source: http://robotics.youngester.com

Robot can be classified in many ways. Some of them are as follows:
A.      Based on Level of Sophistication
Their generation as are:
1.       First generation robot. Most of the industrial robots currently being used belong to this group.
2.       Second generation robots. These robot have capability to understand the environment by acquiring data.
3.       Third generation robots. These are intelligence robots of the future with characteristic as yet hardly understood.  
B.      Base on Manipulative Function
The robots are classified under three following major headings:
1.       Pick and plate robots. This is simple robot along with a simple gripper designed for clamping an unclamping or parts.
2.       Special purpose. This is designed to perform a specific function such as spray painting, etc welding or features to make them suitable for the intended functions.
3.       Universal Robots. Unlike special purpose robot can be used to perform manipulative type of functions.
C.      Based on Manipulator Geometry
This classification these are:
1.       Cartesian, XYZ
2.       Cylindrical
3.       Polar
4.       Jointed Arm
D.      Base on Motion Characteristics
They are as follow:
1.       Point to point robots capable of taking the end effector from one point to another without attaching any importance in the parts.
2.       Continuous  path robots where the tool moves along a desire path
E.       Base on Type of Control
Robots are classified into two group:
1.       Non servo controlled robots which do not employ feedback control for their drive units making them cheaper and at the same time less expensive.
2.       Servo Controlled robots sense the arm configuration and this information is feedback to the controller for comparison with the desired position.
F.       On the Basis of Technology involved
Robot are classified  as under:
1.       Simple Robot. Simple robot are also called pick and place devices and limited sequence manipulator. These are low cost, easy to maintain, fast and accurate devices and can increase productivity.
2.       Medium Technology Robot. Medium technology robot have a greater memory capacity and are easier to teach than simple robots. Such robots having four to six degrees of freedom with servo control are used for machine loading, palletizing etc.
3.       Sophisticated Industrial Robot. It  has highly flexible programmable manipulators and utilize controller that exemplify the highest level of artificial intelligence used in industry automation.-+
G.     According to Method of Input of Information and Teaching
Robot are classified as under:
1.       Manual Manipulator. Robot having controller and actuators for mobility and or manipulation remotely controlled by human operator. As this is worked by an operator it is called manual manipulator.
2.       Fixed Sequence Robot. A manipulator that performs a given operation an a predetermined sequence, condition and position and whose set information cannot be easily changed is known as fixed sequence robot.
3.       Variable sequence robot. It is manipulator that repetitively performs successive steps of a given operating according to predetermined sequence, condition and position and whose set of information can changed easily.
4.       Playback robot. It is robot that repeats an operation from memory on the basis of interactions concerning sequence, condition and other information imparted by moving the robot under operating control.
5.       Numerically controlled (NC) Robot. It is robot that can execute the commend operation in compliance with information or by programmable without being moved.
6.       Intelligent robot. A robot that can determine it is own action through artificial intelligence.   

By: Heru Susanto
Reference:
Kumar, Dr. Surrender and Mukerje, Dr. S.K, “Robotic Engineering”, Satya Prakashan, New Delhi, 2001. 
Posted on 7:36 AM / 1 komentar / Read More

Wednesday, June 29, 2011

Robot Technology: The Robot System

The Robot System

Picture Source: http://robotics.youngester.com

For the purpose of testing, maintenance and safety robot system may be considered to be compose of the following:
a.       The Mechanical System
It is the most visible aspect from a casual observer’s point of view and consists of levers, pivots, beams links and bearings.

b.      The Motive System
It is consists of motors and actuators that convert the energy supplied from prime power source (e.g. the electric mains) into motions of the mechanical system.

c.       The Control System
It behaves rather like the human sensing system (i.e., smell, sight, touch, hear etc.) giving feedback in analogue or digital signals to the computer system about the status of the robot system.

d.      The Computer and Software System
It is the processing element and has to coordinate the activities of the robot system to ensure that the system as a whole is responding in the desired manner. Software system co-ordinates the activity of the computer system behaving rather like a human brain.

e.      The Interface System
It is the communication network that enable the robot to talk to the outside world and vice versa.


By: Heru Susanto
Reference:
Kumar, Dr. Surrender and Mukerje, Dr. S.K, “Robotic Engineering”, Satya Prakashan, New Delhi, 2001. 
Posted on 8:13 AM / 2 komentar / Read More

Basic Concepts: Purpose and Motives of Robotisation

Purpose and Motives of Robotisation

 Picture source: http://robotics.youngester.com
 
 These are identified as under:
a.       Productivity Improvement
With conventional machine a large proportion of time is spend tool changing and inter operation delays. Use of robot, when properly interfaced with machining system cut down idle time cost, increase production speed and thereby brings improvement in productivity. Experiments on robots manufactured by HMT Bangalore reveal that productivity improved by 45% who a robot attends to machines tool. 

b.      Overall Safety
Indeed all hazardus and dangerous jobs like forging, furnace work, painting welding can be handed over to the robot thereby making work environment a safer and batter place. A most of the accident occur because of the negligence of the worker, lost of concentration and fatigue such accidents will be minimized as robots don’t have these human limitations.
c.      Quality Improvement
The world market has seen a fast improvement in quality in recent part because of new and better technology. Robotics bring consistency and betterment in quality. Even string quality parameters can be achieved because robots are programmed and they work as per given instructions. Chances of errors are minimized.    

d.      Saving in Energy and Material
The robots held saving energy and material consumption as the adopt the best possible sequence which is most effective and efficient as well. Air conditioning, extra light are not required in case of robots as they remind unaffected by very high and low temperatures and can also work well in dark with the help of infer red and vision sensors. Robot also perform 100% inspection on parts end components received for assembly.  

e.      Wastage and Defect
Defects rate reduce from 1% to 0.02% inserting cases due to use of robots. 

f.        Boosting Company’s Image
Use of robots boost company’s image which helped them in securing more orders from quality conscious customers and thereby more profits.

g.       Multi Product Batch or Mixed Flow Line
In period of technological advancement when products life has shortened robots help in mixed flow line production. They process different parts and component with speed and accuracy.  

h.      Export Considerations
Many industries adopted robot to help in achieving quality at economic cost which helped them to export their product by competing over their competitors.

By: Heru Susanto
Reference:
Kumar, Dr. Surrender and Mukerje, Dr. S.K, “Robotic Engineering”, Satya Prakashan, New Delhi, 2001.  
Posted on 6:26 AM / 1 komentar / Read More

Tuesday, June 28, 2011

Basic Concepts: Industrial Robots and FMS

Industrial Robots and FMS

 picture source: http://www.festo-didactic.com
          Industrial robots and flexible manufacturing system (FMS) share a common characteristic: “Flexibility”. The two technologies are not, however, interchangeable: robots can be an element of FMS but are not , of themselves, flexible manufacturing system. Robot as an element can perform a number of operations such us work piece, fixture and pallet handling function, inspections, cleaning, tool changing (AGV to transport racks of cutting tools between robot tool changer and the tool room), deburring, finishing etc. within the flexible system. Robots can also be used in flexible assembly system, performing insertion, inspection, fastening and dispensing tasks.
          FMS is a computer – integrated group or cluster of multiple NC machines or work stations linked together by work transfer devices, for the complete automatic processing of differing product parts or the assembly of parts into differing units. The work stations or manufacturing cells will be located along a central material transfer system, such as conveyor, on which a variety of different work pieces and parts are moving. When a specific work piece approaches the required cell on the conveyor, the corresponding robot will pick it and load it into a CNC machine in the cell. After processing in that cell, the robot will return the semi finished or finished part to the conveyor. The part will move on the conveyor until it approaches a subsequent cell in which its processing can be continued. The corresponding robot will pick up and load into the machine. This sequence will be repeated along the conveyor, until at the end only finished parts will be moving. Then they can be routed to an automatic inspection station and subsequently unloaded from the FMS. The co-ordination among the cell and the flow of parts will be accomplished under the supervision of the central computer.
         The designer of any effective FMS ought to consider:
a.       a. How will the system receive its instructions as which products and how many to make?
b.      b. What the technical information will be required so that the system generates the required geometry and other physical characteristics?
c.       c. How will material, tooling and consumables be provisioned?
d.      d. What happens when something goes wrong or changes?
          The long term evolution of FMS is toward the automatic factory, but the potential of an FMS especially the one making maximum use of robotics, is to drive batch manufacturing efficiencies to near the level of transfer line automation. The improvement in efficiency in metal cutting and related process may be of the order of 60 to 80 percent.
by:  Kumar Surender, Dr and Mukherjee, K. S. Dr  : from: robotic and engineering book

Posted on 10:12 PM / 1 komentar / Read More

Thursday, June 9, 2011

Basic Concepts: Robot and Robotics

Robot and Robotics
   

  In Czech the word "Robota"  means "forced labour" or simply worker. Robots were often endowed with super-human strength and power, subhuman intelligence etc. The most commonly used definition is given by the Robot Institute  of America as " A robot is reprogrammable multifunctional manipulator". It is designed  to move materials, parts, tools or special devices through variable programmed motions for the performance of a variety of tasks. If offers flexibility, since it is programmable, which is not the case with the older and more conventional automated production line systems. for changing the task it does not required expensive tooling every time. The robot is concept of computer coupled with a flexible manipulator and this combination has helped to open the door for new manufacturing methods. It possesses certain anthropomorphic characteristics, such as arm and gripper.
Robotics is a branch of technology which concerns about problems design, development and application of robots. there are certain areas which share most of the technology and are as follows:
Prosthesis is artificial replacements for part of the human body.




Exoskeletons is frames which surrounds human limbs or frames, which amplify the available power.







Telecherics is subject of remote manipulation


 
 





Locomotion devices are machines for walking on legs.   

Posted on 8:15 AM / 2 komentar / Read More

Thursday, June 2, 2011

Robot Building: A ROBOT BUILDER SYSTEM

SYSTEM OF A ROBOT BUILDER



Robot Builder Illustration

In this post we will explain about the systems needed to build a robot. construction of a robot covering several important matters that should exist, namely:


1. Robotic Mechanical Systems
     
Robotic mechanical systems include how to choose materials robot builders. how to obtain material for a beginner can obtained by looking at the documentation on robots that can sometimes broadcast on television. Another way is to surf the internet or search using the search engine data. After know about materials science, we must create a model or physical design of the robot that we wish to build. cursory build a robot looks simple, but without a design that reflected (printed) on paper we might be experiencing difficulties. in designing a robot we do not have to use a computer aid. to build a simple robot, simply use the paper to scribble our robot design drawings. if we can use the advanced CAD, the design can be in a picture with the help of computers so the result will look more attractive.

robot design


2. Robot Electronic Systems
     
The second part in designing a robotic system is a system of electronic robot. robot electronics system includes a series of major controller, a series of sensors, actuators and also the driver circuit. electromechanical actuator is a power of motion. in the design of a robot must also use the actuator because the actuator serves to drive the robot so that a robot can complete the task as a robot. robot actuator generally can use DC motors, both permanent magnet DC motors, DC stepper motor or DC servo motor. other than motor robot may also use pnumatik and hydraulic actuators.

motor

3. Software / Programming Language (for a robot that uses a microcontroller).
     
software used in the construction of a robot with programmable components, such as the IC microcontroller / microprocessor, or also use programmable logic controllers (PLCs). programmable component is a component made of semiconductor materials and an integration Adri various electronic components in them and can be reprogrammed for the purpose of controlling a robot. programmable components used by robots created to perform tasks automatically. so for a simple robot using only analog or digital circuit regular.
Posted on 4:08 PM / 1 komentar / Read More
 
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