Video of Robotics Hand & IIUM Smart Room

IIUM Smart Room Prototype

This is the final product of out prototype.

From the front view, it can be seen that there are 2 lamps in front of the room, 2 lamps at the back of the room, a fan at the center, and a projector in front of the room.
All of the electronics components are connected on the breadboard.

Meeting

23 October 2009
Today, we successfully tested the design of our IIUM Smart Room circuit. This include PIR sensor, parallel circuit of the lights, and circuit to off the front light when the projector is on. After this, we will implement it with the mechanical design.

Motion Sensor: PIR Sensor (Passive Infared Sensor)

PIR Sensor Module

• To detect moving human body in specific area.
• Combined with fresnel lens

Specification:

• Supply current DC of 5V
• Voltage output: High/Low of 3.3V
• TTL Output
• With high sensitivity
• Delay time about 5s - 18minutes
• Operating temperature from 15 degree to 70 degree Celcius
• Infrared sensor: dual element
• Operating range: 5m to 7m
• 3 pins: Vcc, Out, and Gnd

IIUM Smart Room will be using this sensor to detect the presence of moving human body. Though our design are using multiple PIR sensors but for the sake of prototype, we will only use one sensor to demonstrate the outcome of the project.

*Specification based on PIR Sensor

Prosthetic Arm (Robotic Hand)

Objective:

• to hold and to carry a cup.

The equipments used in this project are listed as below:

• Acrylic Fibre
• 1 x Servomotor
• Screws and fasteners
• 2 x Potentiometers (5k)
• 555 Timer
• 2 x Rubber bends
• Toggle switch
• Resistors
• Capacitors
• Zener Diode D1N750
• 12V Battery

Result:

In the nutshell, the prototype that we designed fulfilled the objective of the project which is to design a robotic hand to hold a cup. Both of the mechanical and electronics knowledge is applied during the whole project. Discussion within the team is important so that the project follows the goal and minimizes the conflict when the prototype has started to be developed. Good teamwork can minimize the time to complete the project. It is recommended that in the future, this subject, Mechatronics System Design should have project for the students. The project can be variety so that student can do the project based on its objective.

Bill of Materials

This is the list of the main materials that we are planning to use for the prototype.

Modified Pugh's Method

To identify the best design that we should proceed with, we evaluated the 3 designs by using Modified Pugh's Method.

[Click image to enlarge]

From the chosen essential criteria, the result shows that Design 1 Multiple Motion Sensor gains the highest positive value, 55 which make this design to be our final design. Thus, we will proceed with this design for our prototype.