Robozac Lineup

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Thursday, March 11, 2010

Robot Parts


INTRODUCTION

Parts of robot :-

  • 1 NXT Brick with rechargeable battery pack
  • 2 Pairs of large tires with hub
  • 2 pairs of large hub
  • 3 NXT Interactive Servo motors
  • 3 Changeable equipments

EXPLAINATION


NXT Brick with Rechargeable Battery Pack

This robot uses only one NXT Brick with Rechargeable Battery Pack which enough to attach 3 NXT Servo Motors. We decided to use rechargeable battery because it is more efficient, affordable and use less energy. In our minds, if we use more than 1 NXTs, our invention might be bigger in size and face difficulties in movement. Thus, it might not fit to pass through under the bridge.  

 

 

 

2 Pairs of large tires with hub

 

­­­­­­This pairs we used it at the back. We found it more grip and stable if we put it with hub and placed it at the back.

 

 

2 Pairs of hub

 

This types of part we put it at the front part of the robot. We decide to use without tires, robot easily change its direction as friction turn less.

 

 

3 Interactive servo motors

 

 

 Two of the motors we used in the movement of the robot. The remaining motor used for the equipment to move. Sensor, not be used as it makes the robot slower. We prefer programming it based on its rotation, degrees and second.

3 changeable equipment:-

  • CAGE

      It is very functional equipment. It can complete up to 4 missions         

      smoothly. It has a huge base area to increase it capacity to take

      more loops efficiently.

  •    LOOPS PICKER

It has long vertical lego design is specialized to take the higher situated loops.

     It also has  horizontal lego design is specialized to take lower situated loops.  

  • BUMPER

 


Wednesday, March 10, 2010

Robozac's Project

…DEFINE COMMUNITY…

Sekolah Menengah Sains Muzaffar Syah, or formerly known as Sekolah Menengah Sains Melaka, was built on top of a hill with the height of 121.9 metres above sea level. Its area is 12.9 hectare.

Our school consists of 613 students, 356 of them are boys and the rest 275 students are girls. The staffs of our school are around 104 people.

LIST OF WAYS HOW PEOPLE MOVE AROUND THROUGH THE COMMUNITY

  • Walk
  • Bicycle
  • Bus
  • Car & Motorcycle

IDENTIFYING THE PROBLEM

There are several things that made our mode of transportation dangerous. Serious accident that cause death may occur as the movement of transportation is going down the hill. In addition, when a car travels up a hill, it will consume more fuel.

On the other hand, most of the students complain about getting tired going up and down the hill especially during the Friday prayer of the Muslim students. To make things worse, the T-shirt wore by the students during outing will get wet with irritative sweat. Besides, it takes a long time to reach down the hill, about 5 minutes. Based on the research that we make, we found out that we will use more energy by walking. This may cause tiredness or sleepy in class. The calculation of the power (Watt) of a student going up a hill was calculated as shown below:-

Work done, J = mass X g X height of stair X number of stairs

= 55 X 10 X 0.1 X 273

= 15015 J / 15.015 kJ

Power, W = Work done, J

Time taken,s

= 15015

360

= 41.7083 Watt

INNOVATIVE SOLUTION

Based on the questionnaire result, we had found out that aero rail transit system is the best solution to fix the problem. This is because, aero rail is a revolutionary high speed transit system with its passenger vehicles suspended below the guide way beam. Aero rail technology is a reconfiguration of tested and proven components currently in service in electric rail transit systems and heavy highway construction.

Aero rail has the benefit of being constructed in air space over existing publicly owned right-of-way. This benefit not only greatly reduces or eliminates the need to acquire costly right-of-way, but often reduces or eliminates the need for Environmental Impact Studies.

imagen38246171.jpgAero rail uses steel wheels on steel rails to improve speed, eliminate "tire sing," and to use COTS (Commercial Off-The-Shelf) technology so important in holding down transit system costs. To reduce vibration, these wheels have an electrometric component between the hub and steel tire.

So what will it take to make this solution happen?

The school will acquire a large sum of money for the construction of the aero rail transit system from the top of the hill, going down the hill. The government via the Ministry of Education could help in providing the money.

With the existence of such a high-speed transit system, of course it will be easier for the students to move up and down the hill, no more tiredness. The teachers and the other school staffs may as well use the aero rail, which will benefit them in term of reducing the expenditure on petrol. They can park their cars downhill and go uphill via the aero rail. This will also decrease the percentage of air pollution. In this case, the construction of aero rail in the school area will also help in maintaining the quality of the environment.

Movement will become more comfortable, easier and indeed, safer. A student has only to wait for his turn to go inside the cozy aero rail compartment, either from downhill to uphill or the opposite direction. Students’ energy usage could be reduced and no sweating. In addition, students can avoid injuries as the result of falling down the stairs.

We share with our community by;

  • Pass out brochures/flyers
  • Creating a blog; http://www.robozac.blogspot.com
  • Creating posters
  • Choral speaking presentation