Showing posts with label Abstracts. Show all posts
Showing posts with label Abstracts. Show all posts

Wednesday, 7 January 2015

GSM BASED AUTOMATIC WIRELESS POWER METER READING RECORDING AND INFORMATION SYSTEM



AUTOMATIC POWER METER READING USING GSM NETWORK

The main aim of this project is to monitor and record the power meter reading and send the information to the mobile by using GSM technology about the power meter reading .

Now-a-days technology has developed to a large extend. At the same time the need for systems with automation and high security are preferred. So, by using one of the best technologies available i.e. GSM we are designing an automatic power meter reading system for commercial and domestic purposes. Traditional meter reading for electricity consumption and billing done by human operator from houses to houses and building to building. This requires huge number of labor operators and long working hour to achieve complete area reading and billing. Human operator billing are prone to   reading errors as  sometime the houses electricity power meter is placed in location where it is not easily accessible . Labor billing job is sometime also restricted and is slowed down by bad weather conditions. By using this project we can avoid such problems. 

This project is aimed to develop a system to provide security by intimating the condition in the form of SMS by making use of GSM technology. In this project we have two sections.

In section 1 For measuring energy consumed by the user we are going to use one digital energy meter, at the same time as it uses 1unit the count will be displayed in LCD And that particular data is stored in the eeprom. When ever the request sms received. Then, it will send the consumed number of units (meter reading) information to another section. The main objective of this project is to design a prepaid energy meter system with the help of GSM technology. In this project we are using bulbs as a load. On LCD we are going display No of units consumed in this hour.
Section 1:

In section 2 (electricity board section) this section is placed in electricity board. Here we are using the lpc2148 controller so internally rtc is there in this controller. By using this rtc hourly once we are sending the request sms to the section 1 to get the information about power meter reading. Then it will calculate the amount and sends that information to the consumer mobile (sms) through gsm modem. Here we are maintaining the last month details in a data base (in eeprom).

Section 2:
 

 Every system is automated in order to face new challenges in the present day situation. Automated systems have less manual operations, so that the flexibility, reliabilities are high and accurate. Hence every field prefers automated control systems. Especially in the field of electronics automated systems are doing better performance.  

Probably the most useful thing to know about the global system for mobile communication is that it is an international standard. If you travel in parts of world, GSM is only type of cellular service available. Instead of analog services, GSM was developed as a digital system using TDMA technology.
HARDWARE COMPONENTS:
·       Microcontroller
·       Power supply
·       GSM
·       Relay
·       Energy Meter
·       LCD
·       Buzzer
·       Opto coupler
·       keys
SOFTWARE TOOLS:    
·       Keil micro vision
·       Embedded C
·       Express PCB
APPLICATION :
            This project is very effective and can be used for recording the energy consumed by user.


Friday, 22 February 2013

MICROCONTROLLER BASED TACHOMETER



CONTACT LESS TACHOMETER USING MICROCONTROLLER

ABSTRACT

A tachometer is nothing but a simple electronic digital transducer. Normally, it is used for measuring the speed of a rotating shaft. The number of revolutions per minute (rpm) is valuable information for understanding any rotational system. For example, there is an optimum speed for drilling a particular size hole in a particular metal piece; there is an ideal sanding disk speed that depends on the material being finished. You may also want to measure the speed of fans you use.

It is a microcontroller based tachometer that is used to measuring the speed of a rotating shaft. Just point the light sensitive probe tip atop the spinning blade, disk or chunk and read the rpm. The only requirement is that we have to place a contrasting color mask. Position it such that the intensity of light reflected from the objects surface changes as it rotates. Each time the tape spins past the probe, the momentary increase in reflected light is detected by the photo transistor. The pulses picked up by the phototransistor are amplified by transistor and sensed by the internal comparator of AT89C2051 and, through software, each pulse representing one rotation of the object is detected. By counting the number of such pulses, on an average per minute basis, the RPM is evaluated. It is displayed by a software routine to light up the LED segments of the 4-digit, 7-segment display.


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