Description

MA2012 Introduction to Mechatronics System Design

Assessment 1

Assessment Instructions:

⦁ You have received this assessment lab document at least 24 hours prior to the assessment lab session.

⦁ On the actual assessment day, you will commence at 4:30 pm and will end at 6:00 pm. Admission to the lab is at 4:25pm.

⦁ This hands-on assessment has a total of 20 marks.

⦁ 13 marks will be allocated to the tasks described in this document.

⦁ 7 marks will be allocated to new tasks stated on the grading sheet given to you at the start of the assessment lab session. 

⦁ This assessment will make up 20% of the final result.

⦁ Write the names of all group members on the provided assessment grading sheet. Please leave the grading sheet on the lab bench upon completion.

⦁ You need to submit the source code by email to ⦁ wtang@ntu.edu.sg before 10:00 am on 09 Mar 2021.

Assessment Description:

⦁ You are going to design a control system of a lift of a 3-storey building using the Arduino UNO MCU. 

⦁ The basic components and circuitry have been provided to you. The schematic diagram is shown in Figure 1.

⦁ The operations of the lift are as follow:

⦁ The keypad is configured as follow:

⦁ Keys ‘A’ - ‘C’ are call buttons outside of the lift on each level

⦁ Level 1: ‘A’;

⦁ Level 2: ‘B’;

⦁ Level 3: ‘C’.

⦁ Keys ‘E’ and ‘F’ are Door Open and Door Close buttons respectively inside the lift car.

⦁ Keys ‘1’ – ‘3’ are floor buttons inside the lift car.

⦁ The other keys have no function.

⦁ The lift door is controlled by the Servomotor. 

⦁ Fully opened  135°; Fully closed  45°.

⦁ Lift door operations:

⦁ While the lift door is closed and the lift car is not moving, 

⦁ Outside Lift: If the same floor call button is pressed, open the lift door, remain opened for 10s and then close the lift door.

⦁ Inside Lift: If Key ‘E’ is pressed, open the lift door, remain opened for 10s and then close the lift door.

⦁ While the lift door is opened,

⦁ If Key ‘E’ (Inside Lift) OR the same floor call button (Outside Lift) is pressed, the door shall remain opened for an additional 10s;

⦁ If Key ‘F’ is pressed, the door shall close immediately;

⦁ If the Opto-Switch senses occlusion, the door shall remain opened, pressing Key ‘F’ has no effect on the door;

Instruction Files