Wavecom GR64 UART Sleep Protocols Especificações Página 12
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Glossary
ADC Analogue to Digital Converter. In the context of this project, one of
the microprocessor’s on-board peripherals.
APN Access Point Name. Required for GPRS PDP context configuration.
ASCII American Standard Code for Information Interchange. Standard
referring to the binary representation of alphanumerical characters and
control codes for the purposes of electronic communication.
ASIC Application Specific Integrated Circuit. A device whose hardware is
specifically engineered to perform a single function.
AT command A standardised command issued to a modem. Short for
“attention.”
BCC Block Check Character. Texas Instruments term for CRC checksum.
CRC Checksum Cyclic Redundancy Check Checksum. A code used to
verify the integrity of e xchanged data.
EEPROM Electrically Erasable Programmable Read Only Memory. A
form of non-volatile memory which can be re-written electrically.
EM wave Electromagnetic Wave. Term used to describe a self-propagating
wave with electric and magnetic components.
FFT Fast Fourier Transform. Technique for obtaining the discreet Fourier
transform effic iently.
xii
- Low Cost 1
- Penguin RFID Reader 1
- Abstract 2
- Acknowledgements 3
- Declaration 4
- Contents 5
- List of Figures 9
- List of Tables 11
- Glossary 12
- Chapter 1 15
- Introduction 15
- 1.3 Project Timeframe 16
- 1.5 Project Challenges 18
- 1.6 Report Structure 20
- Chapter 2 21
- Analysis of Existing Solution 21
- 2.2 Power Supply 23
- 2.4 Data Delivery 25
- Chapter 3 26
- Device Specification 26
- Chapter 4 29
- Overview of Proposed Solution 29
- 4.3 Uplink Module 31
- 4.4 Interconnections 32
- 4.5 Power Supply 32
- Chapter 5 33
- RFID Reader Design 33
- 5.1.3 Operating Frequency 37
- 5.3.1 64 Data Bits 42
- 5.3.2 CRC Verification 42
- 5.4 Hardware 43
- 5.4. HARDWARE 49
- 5.4.5 Processor 53
- 5.4.6 Interface 56
- 5.4.7 PCB Layout 56
- 5.5 Software 57
- 5.5.2 Capture Stage 58
- 5.5. SOFTWARE 60
- 5.5.3 Decode Stage 61
- 5.6 Design Evaluation 63
- 5.6.4 Power Consumption 67
- Avnett Kopp, September 2006 69
- ZAR9.50 to 1 Euro 69
- Chapter 6 70
- RFID Co-ordinator 70
- 6.2 Software 71
- 6.2.1 Timers 72
- 6.2.2 RFID Reader Request FSM 72
- 6.3 Evaluation 75
- Chapter 7 76
- Uplink Design 76
- 7.3 Hardware Design 80
- 7.3.2 Processor 83
- 7.3.3 User Interface 84
- 7.3.4 Power Supply 85
- 7.4 Software De sign 88
- Except for the I 89
- Details in Section 7.4.5 89
- 7.4.2 Real Time Clock 90
- 7.4.3 User interface 90
- 7.4.4 Peripheral Poll FSM 91
- 7.4.6 Timer FSM 93
- 7.4.7 GSM FSM 94
- 7.4.8 Report Generation FSM 97
- 7.5 Reliability 98
- 7.5.1 Software 99
- 7.5.2 Hardware 100
- Chapter 8 102
- Power Supply 102
- 8.3 Regulator Selection 103
- 8.4.1 Hardware 107
- 40% of 7.5Ah 110
- 8.4.2 Software 111
- 8.5 Measurements 113
- 8.6 Conclusion 114
- Chapter 9 115
- Enclosure Selection and 115
- Mounting Methods 115
- 9.2 Recommendations 116
- Chapter 10 118
- South African Regulations 118
- 10.1 GSM Module 119
- 10.2 RFID Readers 119
- Chapter 11 120
- Conclusion and System 120
- Evaluation 120
- Appendix A 122
- Appendix: RFID Receiver 122
- DUAL-CHANNEL RECEIVER 123
- Appendix B 127
- Appendix: RFID Co-ordinator 127
- B.2. PCB LAYOUT 128
- Appendix C 130
- Appendix: Uplink Module 130
- C.2 List of Uplink Commands 131
- C.3 PCB Design 131
- C.3. PCB DESIGN 133
- Appendix D 137
- Appendix: Power Supply 137
- Appendix E 139
- Appendix: Software 139
- References 140
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