DESINING OF GSM BASED MONTHLY ELECTRICITY ENERGY METER BILLING WITH

SMS AND DISPLAY TO THE USER

RAVI KUMAR.D - 52810106036 NITHIYANANDHAN.G - 52810106304VELU.C - 52810106309

ABSTRACT • The main objective of the project is to develop a wireless

energy meter.• The microcontroller takes the reading from the energy meter

and displays the reading on the LCD.• The reading of the energy meter is also sent to the cell phone of the user by a message through GSM modem.• DTMF tone command so received from any phone to

remotely switch any electrical load such as agricultural pump, domestic and industrial loads

• This project is powered by an on-board power supply takes the ac power and converts it into dc power that is fed to on-board devices and integrated circuits.

INTRODUCTION

• Domestic electricity consumed is displayed in terms of rupees.

• It is daily and monthly basis to the user.• It uses a standard digital energy meter that

delivers output pulses to the microcontroller to perform counting for necessary action. On receiving command it can switch ON/OFF the loads.

• Billing details sent over GSM network for the user.

Literature Review 1Wireless Electricity Theft Detection SystemUsing Zigbee TechnologyOutline:

This system consists of microcontroller, energy meter and a ZIGBEE module to check

for the theft of electricity and then to send a message to the authorized agency which looks after the electricity consumed

Author: Virendra Pandey, Simrat Singh Gill, Amit sharma

Limitation

• ZIGBEE has range between 10 m to 2 km, so long range theft cannot detected.

• After a long time only the theft can be identified.

• Microcontroller 89S51 is used if there is the change in the value of the resistance the supply would cut off and LCD shows that the meter is tempered,

Literature Review 2Electricity Theft Prediction on Low Voltage Distribution System Using Autoregressive TechniqueOutline:

In this paper a new approach of detecting electricity theft on low voltage distribution systems, either single or three phase, based on the advanced signal processing using linear prediction is presented. Consumer data were analyzed using Autoregressive (AR) model in order to predict the quantity of power consumed within the specified interval and consequently.

Author:A.I.Abdullateef, M.J.E.Salami, M.A.Musse, A.M.Aibinu,

Limitation

• Since it is a prediction method after a long time only the theft can be identified.

• It is similar to Find the electricity theft by identifying losses(power) from the production.

• The theft can be identify only by analyzing the consumer’s prervious data.

Existing system

• Manual can making a reading.• Only for operating in office use only.• Doc in manual.

Proposed system

• The user and EB office monthly meter reading.• Doc in DTMF based.• Avoid the EB theft.

BLOCK DIAGRAM

BLOCK DESCRIPTION

MC (MICRO CONTROLLER 89C51)It is an eight bit micro controller works with 5 v dc, operates at 11.0592MHZ

CURRENT DRIVER :It is a transistor with high current capacity up to 8 amperes. It isolates the power section of the micro controller and the power section of the relay.

POWER SUPPLY The microcontroller consists of several circuits which have different

operating voltage levels, this can because its out of control performance.LCD Display:

Used to display the output parameters like voltage current etc.

BLOCK DESCRIPTION

Relay Drivers:A relay operates on +12V DC. But the Microcontroller delivers +5V TTL signal. So this relay driver circuit is used to drive the relay using the +5V DC signal.

Relay:Is a electromagnetic switch used to provide power supply to the motor through it.

Power Supply:Generates +5V Power supply from the given 230VAC

Dual Power Supply:Generates+12V and –12V DC power supply for opamp circuits

CIRCUIT DIAGRAM

COMPONENTS

•Hardware requirementsHardware requirements

•Software requirementsSoftware requirements

HARDWARE REQUIREMENTS

• TRANSFORMERS • VOLTAGE REGULATOR (LM7805) • RECTIFIER• MICROCONTROLLER (AT89S52/C51) • GSM MODEM• LCD DISPLAY • MAX-232• DB9 CONNECTOR• ENERGY METER• OPTOCOUPLER• RESISTOR• CAPACITOR

SOFTWARE REQUIREMENTS:

• Kiel compiler

• Language: Embedded C or Assembly• Willpro.

BLOCK DESCRIPTION

MC (MICRO CONTROLLER 89C51)It is an eight bit micro controller works with 5 v dc, operates at 11.0592MHZ

CURRENT DRIVER :It is a transistor with high current capacity up to 8 amperes. It isolates the power section of the micro controller and the power section of the relay.

LCD DISPLAY A liquid crystal display (LCD) is a thin, flat display device made up of any

number of color or monochrome pixels arrayed in front of a light source or reflector. It is utilized in battery-powered electronic devices as it uses very small amounts of electric power

POWER SUPPLY The microcontroller consists of several circuits which have different

operating voltage levels, this can because its out of control performance.

GSM Communication

GSM Based Communication

• GSM modem• Antenna

GSM Modem• Dual Band or Triband GSM GPRS modem (EGSM

900/1800MHz) / (EGSM 900/1800 / 1900 MHz )• Designed for GPRS, data, fax, SMS and voice applications • Fully compliant with ETSI GSM Phase 2+ specifications

(Normal MS)• Interfaces• RS-232 through D-TYPE 9 pin connector• Power supply through Molex 4 pin connector• SMA antenna connector• Toggle spring SIM holder• Red LED Power on• Green LED status of GSM / GPRS module

GSM Network In AMR

• Utilizing an existing cellular network for data transportation requires no additional equipment or software, resulting in a significant savings in both time and capital.

• Cellular technology utilizes an encryption technique to prevent an outside source from receiving the transmitted data.

• The cellular network provides full two-way communications, allowing scheduled reads, demand reads, alarm and event reporting, power outage reporting and power restoration reporting.

POWER SUPPLY

1 0 0 0 m ic ro F

1 k7 8 0 5

1 3V I N V O U T

J U M P E R 2L E D

1 N 4 0 0 7

1 2

1 N 4 0 0 7

1 2 GND

AC I/P230V/50HZ

5V

Power Supply Brown out is a potentially dangerous state which occurs at the moment the

microcontroller is being turned off or when power supply voltage drops to the lowest level due to electric noise.

As the microcontroller consists of several circuits which have different operating voltage levels, this can cause its out of control performance. In order to prevent

The microcontroller usually has a circuit for brown out reset built-in. This circuit immediately resets the whole electronics when the voltage level drops below the lower limit.

Heart of our project

Data Concentrator Unit (DCU)

• The Data Concentrator sits on the loop of secondary of the distribution transformer.

Collects meter readings from all the meters using Power Line Communication System at predefined intervals.

• The DCU and all the meters connected to it can be considered as a sub-system of the HCS. The sub-system is set up with a DCU monitoring the low voltage power zone downstream of a Distribution Transformer.

Advantages

Smart automated processes instead of manual work Accurate information from the network load to optimise

maintenance and investments Customized rates and billing dates. Streamlined high bill investigations. Detection of tampering of Meters. Accurate measurement of transmission losses. Better network performance and cost efficiency. Demand and distribution management. More intelligence to business planning.Better company credibility.

CONCLUSION

We got that this technology is very useful in present and future demand. AMR served well for commercial or industrial accounts. What was once a need for monthly data became a need for daily and even hourly readings of the meters. Consequently, the sales of drive-by and telephone AMR has declined in the US, while sales of fixed networks has increased. It is use in remote areas and measuring reading from water meter, energy meter, gas meter etc. It can be modified to control many meter reading by TDM system.

Thank you