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Network Technology Research Centre School of Electrical and Electronic Engineering Objective To design a Bluetooth-enable Energy Meter and develop commercially sound applications to demonstrate the advantage of a Bluetooth-enabled Energy Meter. Methodology An architecture of a micro-controller based system for interfacing between the Digital Energy Meter and the Bluetooth Module is proposed. An embedded instrumentation system onboard reads the Active Energy Register values from the Digital Energy Meter. These information are then returned to the host via a wireless Bluetooth link, which will be convert to an active energy value in KWH and display in the host’s GUI. An instantaneous energy consumption graph will be plot in the host GUI. Design Architecture of Bluetooth- Enabled Energy Meter PIC18C452 Micro-controller Power Supply (+5V) RS232 Transceiver Oscillator 18.432 MHz Bluetooth BlueEZ Module UART ADE7756 Energy Meter SPI Power Supply (+3.3 V) RS232 Transceiver D-9 Connector (Male) UART D-25 Connector (female) Fig1: Embedded System PC Micro- controller Energy Meter BlueEZ (master) BlueEZ (slave) wireless link UART SPI UART Fig2: Proposed Interfacing Strategy Applications Two interesting applications have been identified. They are Automatic Meter Reading (AMR) and Automatic Polling Mechanism (APM). AMR is a mechanism whereby the Bluetooth Energy Meter sends the recorded energy consumption of a household in the certain interval of time to a ‘wirelessly’ connected reader. APM is a feature where a reader will poll each and every individual Bluetooth Digital Energy Meter automatically in order to get the meter reading of the corresponding households. Supervisor Assoc Prof Shum Ping & Assoc Prof Sng Yeow Hong Project members Cheah Sin Sheng & Koay Bee Seng FORMETERSLOCATEDI N INDIVIDUAL HOUSE FORALLMETERSLOCATE D INBASEMENTOFBUILDIN G Bluetooth Metering Solution House 1: 15.12 kWh House 2: 25.32 kWh ……

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Page 1: School of Electrical and Electronic Engineering Network ... energy meter.pdf · School of Electrical and Electronic Engineering Objective To design a Bluetooth-enable Energy Meter

Network Technology Research CentreSchool of Electrical and Electronic Engineering

Objective To design a Bluetooth-enable Energy Meter and develop commercially sound applications to demonstrate the advantage of a Bluetooth-enabled Energy Meter.

MethodologyAn architecture of a micro-controller based system for interfacing between the Digital Energy Meter and the Bluetooth Module is proposed. An embedded instrumentation system onboard reads the Active Energy Register values from the Digital Energy Meter. These information are then returned to the host via a wireless Bluetooth link, which will be convert to an active energy value in KWH and display in the host’s GUI. An instantaneous energy consumption graph will be plot in the host GUI.

Design Architecture of Bluetooth-Enabled Energy Meter

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(+ 3 .3 V )

R S 2 3 2T ra n s c e iv e r

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D -2 5 C o n n e c to r( fe m a le )

Fig1: Embedded System

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Fig2: Proposed Interfacing Strategy

ApplicationsTwo interesting applications have been identified. They are Automatic Meter Reading (AMR) and Automatic Polling Mechanism (APM). AMR is a mechanism whereby the Bluetooth Energy Meter sends the recorded energy consumption of a household in the certain interval of time to a ‘wirelessly’ connected reader. APM is a feature where a reader will poll each and every individual Bluetooth Digital Energy Meter automatically in order to get the meter reading of the corresponding households.

Supervisor Assoc Prof Shum Ping & Assoc Prof Sng Yeow Hong

Project members Cheah Sin Sheng & Koay Bee Seng

Supervisor Assoc Prof Shum Ping & Assoc Prof Sng Yeow Hong

Project members Cheah Sin Sheng & Koay Bee Seng

FOR METERS LOCATED IN INDIVIDUAL HOUSE

FOR ALL METERS LOCATEDIN BASEMENT OF BUILDING

Bluetooth Metering Solution

House 1: 15.12 kWhHouse 2: 25.32 kWh

……