Week 14: (13 May 2019 - 17 May 2019)

Activity:

1. Collecting data from the signal sensor of the system project.
2. Analyzing the performance in real-life environments

Objective:

1. To collect data result for thesis report.
2. To analyze the performance of the system project whether capable to be applied or not.

Content/Procedure:

1. The data of each the ultrasonic receiver was collected with different measurements. 
2. The reading of the transmitter signal will be read by five receivers which were in different position and performance as some of the receiver component's are not the same. 
3. The receiver will detect and read the transmitter signal with different distance(cm) and angle(°).
4. The signal will then be converted into voltage measurements using a basic formula, Voltage, V=((Ultrasonic Data Signal) /1024)*5.

Ultrasonic Transmitter placed at 30cm with 0° diversion

Ultrasonic Transmitter placed at 30cm with 20° diversion

Ultrasonic Transmitter placed at 30cm with 40° diversion

Ultrasonic Transmitter placed at 30cm with 60° diversion

Convert the Ultrasonic Signal Data into Voltage Reading

Result & Analysis:

1. Each of the receiver sensors shows difference reading while the transmitter produces a constant signal. 
2. A formula for the SHARP infrared sensor was tested as to associate the signal of the infrared with the signal of the transducer for producing a perfect algorithm and movement logic for the coding.
3. The performance of the system project was tested on a simulator room (hostel store) where the rack of the library was replaced by simple cupboards. 

Voltage Reading when Back Receiver Sensor detected the Signal

Voltage Reading when Right Receiver Sensor detected the Signal

Voltage Reading when Left Receiver Sensor detected the Signal

Voltage Reading when Front-Right Receiver Sensor detected the Signal

Voltage Reading when Front-Left Receiver Sensor detected the Signal

Conclusion:

1. Based on the signal reading by all receiver sensors, it shows that different types of components used can affect the performance of the sensor.
2. Data reading from the three sensor shows a better performance where the signal is capable of detecting the transmitter signal with appropriate reading even at more than 30°. 
3. The performance of the receiver sensor reading is higher than the others three when the signal of the transmitter was located at least 10° wide from the receiver but then the reading fell off sharply if the angle is more than 10° even with the same distance.