Project of Cell Fone Link With a Remote Control Robort
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Project of Cell Fone Link With a Remote Control Robort
Table of Contents- Abstract.......................................... ........ 2
- Table of Contents...................................... 3
- Table of Figures ..................................... 4
- Introduction...................................... ........... 5
- Objective ........................................... 5
- Specifications.................................... .......... 6
- Design ............................................ 7
- Transmitter (Richard)..................................... 9
- Approach to solution.................................... 9
- Establishing a Control Signal through the Cell Phones (Michael) ................. 11
- Received Signal (Michael)............................. 13
- Filtering of the Received Signal ........................ 13
- High-Pass Filter ......................................... 14
- Low-Pass Filter ............................ 16
- Speed Control System (Raj)................ 17
- Comparator Circuit ............................. 18
- Microcontroller Circuit ............................. 18
- Control Circuit ................................... 22
- H-Bridge and Rear Motor .................................... 22
- Steering Control System (Justin) ................... 23
- Reverse Engineering ........................... 23
- Solution:......................................... ...... 24
- PIC Program.......................................... 25
- H-Bridge ................................ 25
- Power (Justin) .............................. 26
- Results and Conclusions ..................................... 27
- References........................................ ........ 28
- APPENDIX A................................................. .... 29
- APPENDIX B.......................................... 40
- APPENDIX C........................................... 43
- APPENDIX D............................................. 47
- APPENDIX E ......................... 60
- APPENDIX F.......................................... 62
- APPENDIX G........................................... 67
- APPENDIX H........................................... 82
- Table of Figures
- Figure 1 - Project Idea. ............................ 5
- Figure 2 - Block Diagram ......................... 8
- Figure 3 – Control Signal to Phone Connection ................... 11
- Figure 4 - Speed Control Logic ..................................... 17
- Table 1 - Frequency Vs Duty Cycle. .......................... 20
- Figure 5 - Duty Cycle Vs Frequency ............... 20
- Figure 6 - Duty Cycle Vs Count ................................. 21
- Table 2 - Control Bit Value and Pulses ........................... 22
- Figure 7 - Diagram of Steering system................ 23
- Figure A.1 – Transmitter Block Diagram.............................. 30
- Figure A.2 – Preliminary Design for a Sine Wave Generator (Not Used in Final Design) ......... 30
- Figure A.3 – Second Preliminary Design for Sine Wave Generator ............................................ 30
- Figure A.4 – Pseudo Sine Wave Generator (Used in Final Design).......... 31
- Figure A.5 – Output of One Pseudo Sine Wave Generator (High Frequency Channel) .............. 31
- Figure A.6 – Voltage Divider and Operational Amplifier Buffer ........... 31
- Figure A.7 – Summing Amplifier................ 32
- Figure A.8 – Control Signal Generator (Transmitter) Schematic............ 32
- Figure A.9 – Comparator Circuit................. 33
- Figure A.10 - Low-to-High Transition Interrupts................ 33
- Figure A.11 - Flow Chart for Acquiring Number of Counts from Timer upon
- Interrupts........... 33
- Figure A.12 - Servo Motors Control Circuit............ 34
- Figure A.13 – UAF42A Universal Active Filter IC Circuit Diagram ........ 34
- Figure A.14 – UAF42A Typical Application Circuit .......... 34
- Figure A.15 – Actual High-Pass (Band-Pass) Filter Frequency
- Response................................... 35
- Figure A.16 – Maxim MAX291 8th Order Low-Pass Filter Typical Circuit ................................ 35
- Figure A.17 – Low-Pass Filter Actual Frequency Response Plot ................................................ 35
- Figure A.18 – Theoretical Low-Pass Filter Response From MAX291 Datasheet[2]................... 36
- Figure A.19 – Generated Final Control Signal .................................................. ........................... 36
- Figure A.20 – Signal Generated (Top) and Signal Received ...... 37
- Figure A.21 – Latency of about 300ms between the Signal Generated and Signal Received...... 37
- Figure A.22 - Receiver Board................... 38
- Figure A.23 - ADC Setup ...................... 39
- Figure B.1 – Joystick and Signal Generator Box............. 41
- Figure B.2 – Female Two Pin Headset Cord to Circuit Connector ..... 41
- Figure B.4 - A Typical Servo Motor....................... 42
- Figure C.1 – Band-Pass Filter with center frequency of 2.2 kHz................ 44
- Figure C.2 – Program Indicates Nearly -3dB Attenuation at Low Cut-off Frequency ...... 44
- Figure C.3 – Program Indicates Nearly -3dB Attenuation at High Cut-off
- Frequency...... 45
- Figure C.4 – Resistance Values for Use with Figure A.15 to Build Filter .... 45
- Figure C.5 – Cascade Layout to Obtain a 4th Order Filter Using Two UAF42As ... 46
- Figure C.6 – Theoretical High-Pass Filter Frequency Response..... 46
- Figure E.1: Budget.................... 61
waqas- Monstars
-
Posts : 283
Join date : 2011-02-13
Age : 37
Re: Project of Cell Fone Link With a Remote Control Robort
If anyone have any info then please post here!
waqas- Monstars
-
Posts : 283
Join date : 2011-02-13
Age : 37
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