Among all one popular wireless medium for local network communication is the nrf24l01 these modules operate on 2 4ghz ism band with baud rate from 250kbps to.
Wireless energy meter using rf communication.
This is perhaps not too surprising since light is actually very high frequency emr.
This technology mainly saves utility providers the expense of periodic trips to each physical location to read a meter.
The technologies listed in the table below differ in the distance over which they can transfer power efficiently whether the transmitter must be aimed directed at the receiver and in the type of electromagnetic energy they use.
Wireless power transfer is a generic term for a number of different technologies for transmitting energy by means of electromagnetic fields.
This system helps to give a quick reference to the users.
A clear line of sight is not required.
This reduces revenue cost and reduces the human errors and problems like over running of the meter over load.
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These are the frequencies at which energy from an oscillating.
Several types of wireless devices make use of radio frequency fields like cordless cell phones radio tv broadcast stations satellite communication systems bluetooth module and wi fi and also two way radios all work in the rf spectrum.
Federal communications commission fcc in the united states the fcc sets safety guidelines that limit rf energy exposure.
All hand held wireless devices sold in the united states must comply with these limits.
But the nature of optical transmission highlights what is perhaps the definitive advantage offered by rf communication.
They license transmitters and facilities that generate rf energy.
Conclusion wireless prepaid energy meter using rf and arduino is easy to install and beneficial for both energy provider and customer.
The only wireless communication medium that can compete with emr is light.
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Implementation of wireless prepaid energy meter v.
Automatic meter reading amr is the technology of automatically collecting consumption diagnostic and status data from water meter or energy metering devices gas electric and transferring that data to a central database for billing troubleshooting and analyzing.
Radio frequency rf is the oscillation rate of an alternating electric current or voltage or of a magnetic electric or electromagnetic field or mechanical system in the frequency range from around 20 khz to around 300 ghz this is roughly between the upper limit of audio frequencies and the lower limit of infrared frequencies.
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In addition other appliances external communications comprising garage door openers and microwave ovens function at radio frequencies.
The fcc has adopted exposure limits for rf energy.
Energy meter reading on pc over wireless communication the purpose of this project is to read the energy meter reading and transmit the reading to pc through zigbee based wireless transmission.
And the selection of medium depends on the type of application it is being used in.
