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Honey Extractor SD1 Paper.Pdf Table of Contents 1. Executive Summary .......................................................................................... 1 2. Project Description ........................................................................................... 2 2.1. Motivation ................................................................................................... 2 2.2. Goal & Objectives ....................................................................................... 3 2.3. Requirements & Specifications................................................................... 4 2.3.1. General Requirements ......................................................................... 4 2.3.2. Mechanical Requirements .................................................................... 4 2.3.3. Heating System Requirements ............................................................ 5 2.3.4. Wireless Communication Requirements .............................................. 5 3. Research .......................................................................................................... 5 3.1. Existing Similar Projects and Products ....................................................... 5 3.1.1. Other Extractors ................................................................................... 5 3.2. Relevant Technologies ............................................................................... 8 3.2.1. Temperature/Humidity Sensors ........................................................... 8 3.2.2. Weight Sensor ................................................................................... 18 3.2.3 Valve ................................................................................................... 23 3.2.4 Wireless Communication Technologies .............................................. 24 3.2.5 Bluetooth Module ................................................................................ 26 3.2.6 Display ................................................................................................ 28 3.2.7. Micro controller Decision .................................................................... 28 3.3 Operation of Classical Honey Extractor ..................................................... 32 3.3.1 Operation of Our Honey Extractor ....................................................... 33 3.3.2 Dangers of Honey Extraction .............................................................. 34 4. Project Hardware and Software Design .......................................................... 36 4.1 Hardware Block Diagram .......................................................................... 36 4.2 Software Activity Diagram ......................................................................... 37 4.2.1 Software Development Tools .............................................................. 39 4.2.2 Software System Requirements .......................................................... 39 4.2.3 Android Application Development ....................................................... 39 4.3. Configuring and Pairing the Bluetooth ...................................................... 41 4.3.1 Integrating the Bluetooth into Circuit ................................................... 43 4.4. Heating System ........................................................................................ 44 i | P a g e Group 3 4.4.1. Coil Heating & Heating Plates ............................................................ 45 4.4.2. Flexible Heating Elements ................................................................. 46 4.4.3. Implementing the Temperature Sensor .............................................. 47 4.4.4. Powering the Heating System ............................................................ 49 4.5. Designing the Mechanical Components ................................................... 50 4.5.1. Designing the Frame Holder .............................................................. 50 4.5.2. Designing the Vat ............................................................................... 53 4.6. Sensor / Driver Interface .......................................................................... 54 4.6.1. Temperature sensor interface ............................................................ 54 4.6.2. Humidity sensor interface: .................................................................. 56 4.6.3. Weight Sensor Interface ..................................................................... 58 4.6.4. Bluetooth Interface (Android Interface) .............................................. 60 4.6.5. Display Interface ................................................................................ 61 4.6.6. Human Interface Device ..................................................................... 62 4.6.7. Motor Controller Interfacing ................................................................ 62 4.7 The Motor .................................................................................................. 63 4.7.1 Mounting the Motor ............................................................................. 64 4.8. Weight Sensor Implementation Options ................................................... 66 4.9. Printed Circuit board (PCB) ...................................................................... 67 4.9.1. Circuit Board Design .......................................................................... 67 4.9.2. Fabrication ......................................................................................... 68 4.10 Powering the Extractor ............................................................................ 69 4.11. Emergency Stop Design ......................................................................... 70 4.12. Procedure for Presentation .................................................................... 71 5. Design Summary ............................................................................................ 72 5.1. The Motor System .................................................................................... 73 5.2. The Heating System ................................................................................. 73 5.3. The Wireless Communication System ...................................................... 74 5.4. The Android System ................................................................................. 74 5.5. The Weighing System (Optional).............................................................. 75 6. Construction Process ..................................................................................... 75 7. Project Prototype Testing ............................................................................... 76 7.1. Hardware Test Environment ..................................................................... 77 7.2.1 Bluetooth Data Transfer to Android ..................................................... 77 ii | P a g e Group 3 7.2.2 Data Transfer between Android and Development Board over Bluetooth Preliminary Testing ...................................................................... 78 7.3 Android Application Software Testing ........................................................ 79 7.4. Testing the Motor ..................................................................................... 81 7.4.1 Initial Testing ....................................................................................... 81 7.4.2 Intermediate Testing ........................................................................... 82 7.4.3 Final Testing ....................................................................................... 82 7.5. Testing the Heating System ..................................................................... 82 7.5.1 Testing the Heating Element ............................................................... 82 7.5.2 Testing the Entire Heating System ...................................................... 83 7.6. Testing the Sensors ................................................................................. 83 7.6.1. General Sensor Testing Ideology ....................................................... 83 7.6.2. Weight Sensor Test ............................................................................ 85 7.6.3. Temperature Sensor Test .................................................................. 87 7.6.4. Humidity Sensor Test ......................................................................... 90 7.7. Circuit board testing ................................................................................. 95 7.8. Micro Controller Testing ........................................................................... 95 7.9. Human Interface Device Testing .............................................................. 95 7.9.1 Temperature Interface Test and Calibration ........................................ 96 7.9.2 Humidity Interface Test and Calibration .............................................. 97 7.9.3 Weight Sensor Interface Testing ......................................................... 97 7.9.4. Motor Controller Interface Testing ...................................................... 97 7.9.5. Bluetooth Interface Testing ................................................................ 98 7.10. Emergency STOP Testing .................................................................... 100 8. Administrative Content ................................................................................. 100 8.1 Project Milestones ..................................................................................
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