14-05-2012, 05:07 PM
DEVELOPMENT OF GSM BASED EMBEDDED SYSTEM FOR PREPAID ENERGY METER
[attachment=22031]
Introduction: -
The concept of this project is similar as any mobile communication & this project is based on the embedded system. Embedded system means it is one that has computer hardware with the software embedded in the ROM.
According to industrial report, India ranks sixth in Global Electricity Consumption Index with 606 units of per – Capita, consumption every year. This is the estimate to be scaled up to 1000 unit by 2012.
EMBEDDED SYSTEM:
An embedded system is a combination of computing H/W & S/W, and perhaps additional mechanical or other parts, designed to perform a specific function. An embedded is a component with in some larger system.
By definition, all embedded system contents a processor and software but what other feature do they have in common? Certainly, in order to have software, there must be a placed to store the executable coed and temporary storage for run time data manipulation. This take the form of ROM and RAM, respectively; any embedded system will have the sum of the both.
APPLICATIONS:
• Precision timing
• Pulse generation
• Sequential timing
• Time delay generation
• Pulse width modulation
MICROCONTROLER:
The8051 is the original member of the MCW-51 family, and is the core for allMCS-51 devices. The features of the8051 core is -
• 8-bit CPU optimized for control applications
• Extensive Boolean processing (Single-bit logic) capabilities
• 64K Program Memory address space
• 64K Data Memory address space
• 4K bytes of on-chip Program Memory
• 128 bytes of on-chip Data RAM
• 32 bidirectional and individually addressable 1/0 lines
• Two 16-bit timer/counters
• Full duplex UART
• 6-source/5-vector interrupts structure with two priority levels
• On-chip clock oscillator
• The basic architectural structure of this 8051 core is shown in Figure :
SFR :
A Map of the on-chip memory area called the Special Function Register (SFR) space is
shown in Figure . Note that in the SFRs not all of the addresses are occupied. Unoccupied addresses are not implemented on the chip. Read accesses to these addresses will in general return random data, and write accesses will have no effect. User software should not write 1s to these unimplemented locations, since they may be used in other 80C51 Family derivative products to invoke new features.
[attachment=22031]
Introduction: -
The concept of this project is similar as any mobile communication & this project is based on the embedded system. Embedded system means it is one that has computer hardware with the software embedded in the ROM.
According to industrial report, India ranks sixth in Global Electricity Consumption Index with 606 units of per – Capita, consumption every year. This is the estimate to be scaled up to 1000 unit by 2012.
EMBEDDED SYSTEM:
An embedded system is a combination of computing H/W & S/W, and perhaps additional mechanical or other parts, designed to perform a specific function. An embedded is a component with in some larger system.
By definition, all embedded system contents a processor and software but what other feature do they have in common? Certainly, in order to have software, there must be a placed to store the executable coed and temporary storage for run time data manipulation. This take the form of ROM and RAM, respectively; any embedded system will have the sum of the both.
APPLICATIONS:
• Precision timing
• Pulse generation
• Sequential timing
• Time delay generation
• Pulse width modulation
MICROCONTROLER:
The8051 is the original member of the MCW-51 family, and is the core for allMCS-51 devices. The features of the8051 core is -
• 8-bit CPU optimized for control applications
• Extensive Boolean processing (Single-bit logic) capabilities
• 64K Program Memory address space
• 64K Data Memory address space
• 4K bytes of on-chip Program Memory
• 128 bytes of on-chip Data RAM
• 32 bidirectional and individually addressable 1/0 lines
• Two 16-bit timer/counters
• Full duplex UART
• 6-source/5-vector interrupts structure with two priority levels
• On-chip clock oscillator
• The basic architectural structure of this 8051 core is shown in Figure :
SFR :
A Map of the on-chip memory area called the Special Function Register (SFR) space is
shown in Figure . Note that in the SFRs not all of the addresses are occupied. Unoccupied addresses are not implemented on the chip. Read accesses to these addresses will in general return random data, and write accesses will have no effect. User software should not write 1s to these unimplemented locations, since they may be used in other 80C51 Family derivative products to invoke new features.