Week 15: (20 May 2019 - 24 May 2019)

Activity:

1. Collect data and plot the graph of the Sensor signal.
2. Drafting and checking the contents of the Final Report for Chapter 4 & Chapter 5.

Objective:

1. Updating the progress report for Chapter 4 which is the content for result discussion and data analysis.
2. Meeting with Supervisor for seeking guidance in drafting the contents for Chapter 5 as well as checking my progress report for other chapters.
3. Rechecking and improving the contents and index of other chapters.
4. Creates a caption for all Figure & Table contained in the Thesis Report and citation for each cited paragraph/words according to the number order at the References list.

Content/Procedure:

1. The data reading of all Five Receiver Sensor with different manipulated variables was tabulated and the graph for each Sensor reading was plotted.
2. By plotting the reading of the signal, it can show the performance of each Receiver Sensor to detect then return the transmit signal with a different condition or position of the Transmitter signal. Five tables below show the reading voltage for each Receiver sensor

Voltage Reading for Back Receiver

Angle (°) Distance(cm)	0°	20°	40°	60°
30	4.62	3.71	2.19	1.04
60	4.17	3.04	1.87	0.61
90	3.66	2.11	1.19	0.34
120	3.19	1.14	0.33	0.07
150	2.65	0.33	0.11	0
180	2.19	0.08	0	0
210	1.82	0	0	0
240	1.04	0	0	0
270	0.33	0	0	0
300	0.13	0	0	0

Voltage Reading for Right Receiver

Angle (°) Distance(cm)	0°	20°	40°	60°
30	4.95	3.86	1.99	1.88
60	4.75	3.77	1.76	1.06
90	4.4	2.95	1.21	0.54
120	4.01	1.99	1.01	0.23
150	3.86	1.76	0.73	0
180	3.39	0.75	0.41	0
210	2.82	0.3	0.11	0
240	1.97	0.06	0.01	0
270	1.72	0	0	0
300	1.56	0	0	0

Voltage Reading for Left Receiver

Angle (°) Distance(cm)	0°	20°	40°	60°
30	4.85	4.22	3.29	1.48
60	4.51	3.97	2.57	1.19
90	3.99	3.1	1.69	0.67
120	3.61	2.71	1.45	0.25
150	2.99	2.26	1.19	0.09
180	2.57	1.59	0.86	0.03
210	1.9	1.1	0.54	0
240	1.73	0.4	0.28	0
270	1.28	0.28	0.12	0
300	0.91	0.7	0	0

Voltage Reading for Front-Right Receiver

Angle (°) Distance(cm)	0°	20°	40°	60°
30	4.63	3.9	2.82	1.44
60	4.24	3.6	2.17	1.05
90	3.8	2.91	1.62	0.86
120	3.64	2.3	1.28	0.56
150	3.11	1.62	1	0.23
180	2.5	1.28	0.88	0.06
210	1.97	0.76	0.18	0.02
240	1.44	0.18	0.03	0
270	1.05	0.07	0	0
300	0.76	0.01	0	0

Voltage Reading for Front-Left Receiver

Angle (°) Distance(cm)	0°	20°	40°	60°
30	4.83	4.07	2.97	1.46
60	4.54	3.84	2.33	1.24
90	4.07	3.25	1.73	0.86
120	3.82	2.64	1.46	0.66
150	3.33	2.13	1.01	0.17
180	2.64	1.46	0.88	0.09
210	2.13	1.02	0.39	0.02
240	1.68	0.39	0.15	0
270	1.46	0.13	0.02	0
300	0.91	0.01	0	0

1. Dr. Alipah suggests me to analyze and discuss the difference of the performance for each Receiver Sensor used on the system based on the Plot Graph reading. She advised me to explain the result data that can answer my Objective based on Chapter 1: Introduction.
2. As for Chapter 5, she told me to conclude all the objectives of the project which is whether the operation of the system project meets the purpose that I have stated in my objectives of the project. If my system project does not meet the desired requirements, I must justify the reason.
3. For Recommendation and Future Work, Dr. Alipah gives a few ideas to apply to the system;
• Speeding up or slowing down the speed of Motor based on the distance of the Transmitter signal (user) or the weight of the load carried by the system (books).
• Use a global localization method (GPS) instead of the split sensor module for the system to locate its user. With the GPS module, the user can use a mobile phone for establishing a connection with the system using Bluetooth. Then the mobile phone can send the signal to the system in which contained the user coordinates periodically.
• Apply a Load Cell (Weight Sensor) with LCD (Liquid Crystal Display) function at the system to show or display the total weight of the load (books) carried by the system in order for the user to know the total weight of the books that been placed and alert for the maximum weight suggestion for the system to carried. 

Result & Analysis:

1. The figure below shows five Plot Graph of all Receiver Sensor that been placed on the system project for detecting and locating the Ultrasound signal from the Transmitter Sensor. 
2. The graph shows the voltage reading of the Receiver Sensor after its detect and returns the signal from the Transmitter in which the Transmitter was placed at different distance and angle from the Receivers, which were placed on a  fixed position.

Back Receiver Sensor

Right Receiver Sensor

Left Receiver Sensor

Front-Right Receiver Sensor

Front-Left Receiver Sensor

1. The x-axis for the graph represents the voltage reading (V) of the Receivers and the Y-axis represent the distance (cm) of the Transmitter from the Receiver from 30cm to 300cm, while the different color for the line graph represents the different angle of the Transmitter from the Receiver which is;
• Blue Line      =   0°
• Orange Line = 20°
• Grey Line = 40°
• Yellow Line = 60°
2. The performance for all Receivers based on the graph can be arranged from best to worse;
• Front-Left Receiver Sensor
• Front-Right Receiver Sensor
• Left Receiver Sensor
• Right Receiver Sensor
• Back Receiver Sensor
3. Front-Left, Front-Right, and Left Receiver Sensor give a more precise reading and wider-range detection as they were capable to detect the Transmitter signal even when the Transmitter was positioned at more than 100cm with an angle diverse at 60° from them. The Right and Back Receiver however couldn’t or at least gives a ‘poor reading’ when the signal was placed more than 150cm or more than 30° angle diversion.

Conclusion:

1. From the data analysis that been observed and the discussion that been argued, one of the significant factors that affect the Sensor signal detection readings was the different type of components used for assembling and creating the Sensor module.
2. The figure below shows all Five Receiver Sensor with three of it used a Polyester Capacitor; (Left Receiver, Right Receiver, and Back Receiver Sensor) and the two others used a Ceramic Capacitor (Front-Left & Front-Right).

Ultrasonic Receiver Sensor