Week 8: (1 April 2019 - 5 April 2019)

Activity:

1. Hardware design/casing for Ultrasonic Sensor module.
2. Assembling and combining the Ultrasonic Sensor module (with casing) with the external body hardware.

Objective:

1. Proceed on designing the hardware for the system project.
2. Analyzing the performance of the system hardware.

Content/Procedure:

1. The casing for the Ultrasonic Transmitter and Receiver was design using PVC pipes and perspex to protect the Sensor Module while giving it a proper body.

Receiver Sensor with its Casing

Result & Analysis:

1. The design for the system external hardware/body is normally just to shows the operation for the proposed system project as the design was constructed to look a little bit like a trolley.
2. The performance of the Ultrasonic Sensor Module was tested after combining it with external hardware.
3. Five Ultrasonic Receiver sensor was positioned on the top of the hardware with different angle position.
• Front-Left Receiver Sensor..................135°
• Front-Right Receiver Sensor..................45°
• Left Receiver Sensor............................180°
• Right Receiver Sensor..........................270°
• Back Receiver Sensor......................360°/0°

Position of Ultrasonic Receiver Sensor

System Design for the Project

Conclusion:

The constructing and designing the external hardware must be completed first before I can proceed into designing the coding as I need to analyze the position and the angle of the Receiver sensor. I've encountered a few problems during the designing progress;

1. The L298N Motor Driver was unable to operate four DC Motor.
2. The current supply is insufficient for drawing the DC Motor as all four DC Motor shows different speed.
3. The performance for the Ultrasonic Transmitter was lesser as it is unable to generate the required signal power.

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