Arm Processor Project Report Using Rfid

7835 Words Feb 16th, 2011 32 Pages
CHAPTER 1
INTRODUCTION
Under considerations to regional surroundings, laws and regulations, communication efficiency, interference and transmission cost, this study proposes a wireless ARM-based automatic meter reading and control system (WAMRCS). The WAMRCS uses sampling circuits and A/D convertor to transfer analog signal of voltage and current into digital data. The digital data then send to embedded system to compute power parameters. This embedded system will send power parameters to regional monitoring and control center of utility company via wireless module connected with it. This WAMRCS applied on distribution automation can save personnel expense of hiring reading-meter workers and can be free from human involvement; more
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CHAPTER 4
89C51 MICROCONTROLLER
4.1 FEATURES: ➢ Compatible with MCS-51 Products ➢ 4 Kbytes of In-System Reprogrammable Flash Memory. Endurance 1,000 Write/Erase Cycles ➢ Fully Static Operation: 0 Hz to 24 MHz ➢ Three-Level Program Memory Lock ➢ 128 x 8-Bit Internal RAM ➢ 32 Programmable I/O Lines ➢ Two 16-Bit Timer/Counters ➢ Six Interrupt Sources ➢ Programmable Serial Channel ➢ Low Power Idle and Power Down Modes 4.2 DESCRIPTION: The AT89C51 is a low-power, high-performance CMOS 8-bit microcomputer with 4 Kbytes of Flash Programmable and Erasable Read Only Memory (PEROM). The device is manufactured using Atmel’s high density nonvolatile memory technology and is compatible with the industry standard MCS-51 instruction set and pin out. The on-chip Flash allows the program memory to be reprogrammed in-system or by a conventional nonvolatile memory programmer. By combining a versatile 8-bit CPU with Flash on a monolithic chip, the Atmel AT89C51 is a powerful microcomputer which provides a highly flexible and cost effective solution to many embedded control applications. The AT89C51 provides the following standard features: 4Kbytes of Flash, 128 bytes of RAM, 32 I/O lines, two 16-bit timer/counters, five
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