DESIGN 2B FINAL PROJECT REPORT

According to experts, despite some similarities between seasonal flu and COVID19, caution is needed before considering COVID19 as a seasonal disease. Moreover, following the flow of events since the first discovery of COVID19, although this is no longer a new phenomenon, it has been causing a lot of public health hazards with different variations of the COVID19 virus. It is premature to make assumptions about how COVID19 will evolve and behave in the future. This indicates that we need to shift towards sustainable management of COVID19. Given our present circumstances, medical services and telemedicine have become essential for effectively managing the COVID19 pandemic and enhancing societal wellbeing. This involves providing suitable and convenient medical devices that allow staff to monitor their health. Our product evaluates each workers health condition through temperature measurements in private office settings. Furthermore, we are developing an automated thermometer for workers, which enables them to regularly monitor their temperature and overall health status while safeguarding the individuals around them.

School of Biomedical Engineering

DESIGN 2B FINAL PROJECT REPORT

Project title

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I Introduction

1 Motivation

According to experts, despite some similarities between seasonal flu and COVID-19, caution is needed before considering COVID-19 as a seasonal disease Moreover, following the flow of events since the first discovery of COVID-19, although this is no longer a new phenomenon, it has been causing a lot of public health hazards with different variations of the COVID-19 virus It is premature to make assumptions about how COVID-19 will evolve and behave in the future This indicates that we need to shift towards sustainable management of COVID-19 Given our present circumstances, medical services and telemedicine have become essential for effectively managing the COVID-19 pandemic and enhancing societal well-being This involves providing suitable and convenient medical devices that allow staff to monitor their health Our product evaluates each worker's health condition through temperature measurements in private office settings Furthermore, we are developing an automated thermometer for workers, which enables them to regularly monitor their temperature and overall health status while safeguarding the individuals around them

2 Objective + Initial requirements (briefly explain what you want to

do)

Our design is to develop a device that can help limit the spread of the disease

to those around the infected person This system used the distance sensor E18-DD80NK to detect objects and the temperature sensor GY-906-MX90614

to measure people's temperatures When the machine detects someone with

a fever, it will alert the individual and require them to work from home to prevent the spread of the disease to others

This project aims to collect input data accurately, specifically the body temperature of consumers The purpose is to store the data and promptly detect individuals who may potentially carry the COVID virus in their bodies to test and isolate them on time from other members Our project mainly includes temperature sensors, infrared distance sensors, and notification speakers In summary, our product is aimed at consumers in enclosed office spaces to ensure their health

3 Related Works (google related works and describe some of the

related works that you found)

The GATEC Research Group at the University of Science and Technology -University of Danang is researching, manufacturing, and applying remote body temperature measuring devices to meet the urgent needs of Covid-19 prevention and control tasks The remote body temperature measuring device consists of a commonly used infrared body temperature measuring machine (or infrared temperature sensor), a webcam, a laptop or iPad, and

a smartphone to read the results The measurement results will be transmitted to the medical staff's screen through the internet Medical staff can remotely observe and measure the body temperature of guests in isolation rooms with glass doors An automatic height adjustment system is used to adjust the temperature-measuring machine-camera cluster to the appropriate height of the person being measured to ensure accuracy Therefore, the use of remote body temperature measuring devices ensures

no close contact between medical staff and those being measured, thereby minimizing the risk of cross-infection of the Covid-19 virus

4 Idea introduction

We will use the knowledge we have gained in 3D design, programming, and electrical engineering to run machine units, assemble the circuit boards, and assemble the various parts and accessories Our initial idea is to use a contactless temperature sensor, a distance sensor, and Arduino Uno R3 The distance sensor is used to detect the presence of a person needing measurement Once the sensor detects someone, it will transmit this information to the temperature sensor, and then, through the audio device and screen, it will display the employee's temperature

To accomplish the 3D design aspect, we will utilize Fusion 360, an Autodesk tool widely used for 3D design Thankfully, the student email provided by IU grants us a free license for this tool, enabling us to leverage its full range of options for our design Additionally, we will use the department's 3D printer to bring our product to life Our product must be designed for easy disassembly and assembly while being compact and handheld for user convenience

II Design specifications

1 Weight and Size

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Dept Technical reference Created by Approved by

Document type Document status

Rev Date of issue Sheet

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G R O U P 5 - A U T O M A T IC T H E R M O M E T E R _ B O D Y

Group 5

Parts List Item Qty Part Number Description Material

1 1 ARDUINO UNO R3 Steel

2 1 5V_Relay_HW-803

3 1 PAM8403 Steel

4 1 OLED-128x64-0.96.f3d v1 Steel

5 1 MLX90614XAA_Module Steel

6 1 E18-D80NK ir sensor v3 Steel

7 1

_RFID-RC522.cd1ec80f-b667-4655-b6b3-a21b5d1b7a74

3

2

1

91

25.5

Figure 1 Mechanical design and Component placing by 2D drawing

2 Power (power line or battery, if it is battery, what is the expected

battery life, is it chargeable or not? )

3 Detection Range/Working Distance…

4 Accuracy/Reliability

5 etc

III Materials & Methods

1 Materials

1.1.Arduino Uno R3

The Arduino Uno R3 is a popular microcontroller board based on the ATmega328P microcontroller It is used to receive and process information from function blocks, then send signals to the display block to give information to users

Purchase: Hshop

Specifications:

Table 1 Specifications of Arduino Uno R3

Input Voltage (limits) 6-20V

Digital I/O Pins 14 (of which 6 provide PWM output)

Flash Memory 32kB (0.5 kB is used for Bootloder)

Arduino Uno Components101 (2021, July 19)

https://components101.com/microcontrollers/arduino-uno

Figure 2 Arduino Uno R3 Pinout

1.2.Sensor Block

Function: It can confirm an employee's information by swiping their

magnetic card and identifying an object to be measured using infrared Then, it can measure the temperature of the specified object Once the measurement

is complete, the temperature value is sent to the microcontroller and displayed

on the screen

Components used:

 GY-906 MLX90614 Non-contact Infrared Temperature Sensor

Working Principle: The MLX90614 sensor can measure the temperature of

an object without requiring physical contact This is achieved by utilizing the Stefan-Boltzmann Law, which asserts that all objects and organisms emit infrared (IR) energy, and the magnitude of this emitted IR energy is directly proportional to the temperature of the object or organism Consequently, the MLX90614 sensor determines the temperature of an object by assessing the quantity of IR energy it emits (Microcontrollers Lab (2022, May 7) MLX90614 non-contact infrared temperature sensor with ESP8266 Microcontrollers Lab

https://microcontrollerslab.com/mlx90614-non-contact-infrared-temperature-sensor-esp8266/)

Purchase: Hshop

Specifications:

Table 2 Specifications of MLX90614

Distance between object and sensor 2cm – 5cm

It has low power consumption sleep mode

MLX90614 Non-Contact IR temperature sensor Components101 (2022, March 31) https://components101.com/sensors/melexis-mlx90614-contact-less-ir-temperature-sensor

Figure 3 MLX90614 Pinout

 Infrared Obstacle Avoidance Proximity Sensor E18-D80NK

Working Principle: Infrared sensors operate by emitting and sensing

infrared radiation Typically, active infrared sensors consist of two primary components: a light-emitting diode (LED) and a receiver As an object

approaches the sensor, the LED emits infrared light that gets reflected by the object Subsequently, the receiver detects the reflected infrared radiation (Cảm Ứng Hồng Ngoại Công Ty Cổ Phần SX-TM-DV Thế Bảo (n.d.)

https://kawasan.com.vn/tin-cong-nghe.html/cam-ung-hong-ngoai-kawasan.html)

Figure 4 Working Principle of Infrared Sensor Purchase: Hshop

Specifications:

Table 3 Specifications of E18-D80NK

Current consumption > 25mA (min) ~ 100mA (max)

Detection of objects Transparent or Opaque

Environment temperature -25 °C ~ 55 °C

Diffuse reflective type NPN output (normally high)

Interfacing E18-D80NK IR obstacle avoidance proximity sensor with Arduino Circuit Digest.

(2021, May 8) https://circuitdigest.com/microcontroller-projects/interfacing-e18d80nk-ir-pr oximity-sensor-with-arduino

Figure 5 E18 - D80NK Pinout

 RC522 – RFID Reader/Writer

Working principle: A reader comprises a radio frequency module and an

antenna that generates an electromagnetic field at a high frequency On the other hand, a tag is typically a passive device lacking a battery It consists of a microchip for storing and processing information and an antenna for receiving and transmitting signals The reader creates an electromagnetic field when the tag is brought into proximity As a result, electrons within the tag's antenna begin to move, thereby providing power to the microchip Once the microchip receives power from the electromagnetic field generated by the reader, it transmits its stored information back to the reader This transmission occurs as

a radio signal and is referred to as backscatter The reader then captures and interprets this backscattered signal, extracting the transmitted data Subsequently, the reader forwards this data to a computer or microcontroller, which can be further processed and utilized (Last Minute Engineers (2023, May 10) In-depth: What is RFID? how it works? interface RC522 with Arduino

Last Minute Engineers https://lastminuteengineers.com/how-rfid-works-rc522-arduino-tutorial/)

Figure 6 Principle of RFID RC522

Figure 7 Internal Construction of RFID Card and Key Fob Tags

Purchase: Hshop

Specifications:

Table 4 Specifications of RC522 - RFID Reader/Writer

13.56MHz RFID module

Power Down Mode Cónumption 10uA (min)

RC522 RFID module Components101 (2019, June 12)

https://components101.com/wireless/rc522-rfid-module

Figure 8 RC522 - RFID pinout

1.3.Display Block:

Function: Utilize the 1.3 Inch OLED screen to exhibit the body

temperature value and inform the user about the temperature measurement

Purchase: IC day roi

Specifications

Table 5 Specifications of Oled 1.3inch

Number of Points Display 128x64 points

1.3 inch OLED display (SH1106, SPI/I2C, 128x64) Smart Prototyping (n.d.)

https://icdayroi.com/man-hinh-lcd-oled12864-1-3-inch

Figure 9 Oled 1.3inch Pinout

1.4.Sound Block

Function: It is used to decode sound from the memory card and emit

sound notifications according to the pre-programmed program on the circuit board

Components used

 DFPlayer Mini MP3 Player Module

Purchase: Hshop

Specifications

Table 6 Specifications of DFPlayer Mini

Communication UART or can be controlled directly via

the IO pins Supporting audio formats MP3 and WAV

Sampling rate (Khz) 8/ 11.025/ 12/ 16/ 22.05/ 24/ 32/

44.1/ 48 with 24bit output

YX8002A so that it can be connected directly to the speaker < 2W

Full support FAT16, FAT32, TF card maximum support 32Gb

Audio files can be sorted by folder ( up to 100 items ); each item contains up to 255 songs

Thirty levels of Volume and six levels

of EQ can be adjusted

DFPlayer mini MP3 player - dfrobot wiki (n.d.) https://wiki.dfrobot.com/DFPlayer_Mini_S KU_DFR0299

Figure 10 DFPlayer Mini Mp3

Purchase: Hshop

Specifications

Table 7 Specifications of Speaker 3W

Buy 1.5 inch 4Ω (OHM) 3W power audio woofer speakerΩ (OHM) 3W power audio woofer speakerOHM) 3W power audio woofer speaker) 3W power audio woofer speakerW power audio woofer speaker Electronic Spices (n.d.) https://ele ctronicspices.com/product/1-5-inch-4%CF%89-ohm-3w-power-audio-woofer-speaker

Figure 11 Speaker 3W

Purchase: Hshop

Speacifications:

Table 8 Specification of Module Pam8403 Mini

Product Model Specifications GF1002

Admin (2022, August 13) M) 3W power audio woofer speakerini 2 Channel Digital USB Audio Amplifier Board M) 3W power audio woofer speakerodule PA

M) 3W power audio woofer speaker84Ω (OHM) 3W power audio woofer speaker03W power audio woofer speaker Datasheet Hub https://datasheethub.com/mini-2-channel-digital-usb-audio-amplifie r-board-module-pam8403/

Figure 12 Module Pam8403 Pinout

1.5.Executive block

Function: Receive control signals and execute commands.

Purchase: Hshop

Specifications:

Table 9 Specification of Solenoid 12W

d-12v-latch-lock.html

Figure 13 Solenoid 12W

2 Block diagram (your plan to connect the components)

3 Electrical Wiring/Schematics

4 Mechanical Design (Fusion 3D assembly of your device)

5 Firmware & Software

IV Testing Methodology

Describe how you determined weight, size, detection range/working distance, accuracy or reliability, battery life (if it is powered by battery) of your device after you finish building it

V Results & Discussions

VI Cost analysis

VII Conclusion & Limitation & Future works

In conclusion, the machine designed to reduce the spread of COVID-19 h

as shown promising results in reducing the number of people infected with the virus The machine can be used in homes and offices to create a safe and healt

hy environment for individuals and families It is easy to use and requires no sp ecial skills or training Overall, the machine that reduces the spread of COVID-1

9 is a valuable tool in the fight against the pandemic Its use can help save lives and prevent the further spread of the virus Significant and costly machines req

uire a substantial initial investment, which can financially strain a company Th

e high cost of the machine may also limit the number of companies that can aff ord to purchase it The maintenance cost of big and costly machines is also hig

h The machines require regular maintenance to keep them in good working co ndition The cost of maintenance, including the cost of spare parts, can add up quickly, making it a significant expense for the company Extensive and costly machines are often designed for specific tasks, making them inflexible They m

ay not be suitable for other tasks, which limits their usefulness Companies ma

y need additional machines to perform different tasks, resulting in higher costs These machines are often heavy and difficult to move Relating them to differe

nt factory areas or a new facility is challenging The cost of moving the machine

s can also be high, which can be a significant expense for the company

Moreover, it can finally become obsolete quickly Technology constantly evolves, and newer machines may be more efficient and cost-effective Compa nies that invest in extensive and costly machines may find themselves with out dated equipment that is no longer useful or efficient

In conclusion, while big and costly machines can increase productivity an

d efficiency, they also have limitations Before deciding, companies must weigh the benefits and limitations of investing in extensive and costly machines In th

e future, we will incorporate more heart rate functions to improve our app's pe rformance We will also research and develop a voice control feature instead o

f magnetic cards to help users have a better experience using our products In addition, a quick covid test can be provided when people are over 37 degrees C elsius to ensure they can continue working if they only have a common cold

VIII Task Division and Timeline

The task division and timeline are critical parameters to evaluate the ability of students in planning a project and managing workflow These matrices are used to evaluate a student outcome of ABET

“5A Develop a plan and establish goals to work on a project, coordinate among team members”, so you have to do it properly.