AMR. Automatic Meter Reader. By: Power Communication Systems (PCS, Inc.). Team Members. #1Advisor. Dr. Noel Schulz. “ The Fab-Five ”. Members: Daven Carter,, Samuel Jefferson III, Derrick Cherry, & Brian Wells Team Leader: Marc Lewis. Problem:.
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Automatic Meter Reader
Power Communication Systems (PCS, Inc.)
Dr. Noel Schulz
“ The Fab-Five ”
Members: Daven Carter,, Samuel Jefferson III, Derrick Cherry, & Brian Wells
Team Leader: Marc Lewis
The existing automatic meter reading systems used
to monitor power usage are extremely expensive.
Hex Schmitt-Trigger Inverter
Wireless Communication Module
PIC w/ built-in A/D Converter
Creatalink 2XT Module (Motorola)
1.AC Voltage:The system will be powered by the 220 VAC service entering the power meter.
2. Emission: The infrared emitter/detector must be at a distance of 1 cm away from the disk in order for the proper amount of light power to be detected by the phototransistor.
3. Performance: The system will detect 97% correct events at 16 RPM under normal operational conditions.
4.Signal Quality of Input to Transducer: The output of the sensor must be filtered in order for the modulated 40 kHz signal so that the SNR will be at least 16 dB.
5. Interface Between PIC and Wireless Board: The PIC and the Creatalink will be interfaced using three-wire RS232 Serial Communication protocol. The flow control between the two devices will be a software addition to the PIC.
6. Durability: This device must operate at the temperature range of -30 to 85 C. It must be protected against 1000 surges of 3000 A. It must also be waterproof and rust proof for up to 1 year per application of an anticorrosive chemical.
7.Packaging: Our device will be around 3 ½ x 1.5 inches and will be retrofitted into the case that holds existing watt meters, which has a circular area of 19.5 in².
8. Battery Back Up: Battery back up must be able to comply with the typical annual time of outages for most utilities: 4.08 hours
9. Cost: Typical AMR-related savings can be anywhere from $200 to $400 per meter per year, depending upon utility size, geography, labor rates, and meter accessibility
10. Longevity: The retrofit device has a lifetime
expectancy of 25 years
Light being detected by sensor
Our solution is less expensive and
quicker to install than alternatives.
Our system offers comparable control and reporting capabilities as the competition.
Our system is more appealing to small utilities.
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