Testing Version 2 of the RS-485 Shield
Yesterday I received the new PCBs for Fritzing for a RS-485 Shield that will work withe Arduino Due and Maple. This shield has headers to either plug in and XBee module or Electric Imp breakout board for wireless communications. I have tested the Rs-485 communications and all is working well. Next, I will test XBee and Imp communications. Here are some pictures:
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AMPds: A Public Dataset for Load Disaggregation and Eco-Feedback Research
Last week I learnt that that my full co-authored (with co-author Fred Popowich, Lyn Bartram, Bob Gill, and Ivan Bajic) paper “AMPds: A Public Dataset for Load Disaggregation and Eco-Feedback Research” was accepted at IEEE‘s Annual Electrical Power and Energy Conference (EPEC 2013). So I will be travelling to Halifax, Nova Scotia in the Canada. Here is the paper abstract:
A home-based intelligent energy conservation system needs to know what appliances (or loads) are being used in the home and when they are being used in order to provide intelligent feedback or to make intelligent decisions. This analysis task is known as load disaggregation or non-intrusive load monitoring (NILM). The datasets used for NILM research generally contain real power readings, with the data often being too coarse for more sophisticated analysis algorithms, and often covering too short a time period. We present the Almanac of Minutely Power dataset (AMPds) for load disaggregation research; it contains one year of data that includes 11 measurements at one minute intervals for 21 sub-meters. AMPds also includes natural gas and water consumption data. Finally, we use AMPds to present findings from our own load disaggregation algorithm to show that current, rather than real power, is a more effective measure for NILM.
Keywords: Power Meter, Current, Dataset, Load Disaggregation, Eco-Feedback, Single-Measurement, Maximum a Posteriori (MAP), Energy Conservation
The dataset (and paper) can be found at http://ampds.org.
The Cognitive Power Meter: Looking Beyond the Smart Meter
Last week I learnt that that my full co-authored (with co-author Fred Popowich and Bob Gill) paper “The Cognitive Power Meter: Looking Beyond the Smart Meter” was accepted at IEEE‘s 2013 Canadian Conference on Electrical and Computer Engineering (CCECE’13). So I will be travelling to Regina, Saskatchewan in the Canada. Here is the paper abstract:
The smart meter is often heralded as the key component supporting energy displays that can notify home occupants of their energy usage. But, a smart meter is only a digital power meter with enhanced communications capabilities — it is not actually smart. We need to look beyond the smart meter and define what intelligence is needed to actually make a meter smart. One area with promise is load disaggregation. Load disaggregation can be used to determine what loads contributing to the consumption reading at the smart meter. A smart meter incorporating load disaggregation intelligence can be seen as going beyond the traditional smart meter — what we call a cognitive power meter (c-meter). However, using load disaggregation, in its current form, is not feasible. We critically review the requirements for a c-meter and provide insights as to how load disaggregation research needs to change to make the c-meters a reality.
Keywords: Power Meter, Smart Meter, Load Disaggregation, Cognitive Analysis, Demand Response, Energy Conservation
I will post a link to where you can download the paper soon…
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APMR Version 2.0 Released
Version 2.0 of the Arduino Power Meter Reader (APMR) project is now released. APMR s an open source hardware and software project. APMR reads the power (W) and energy (Wh) readings of RS485/Modbus communicating power meters at a constant interval. Readings are recorded on an SD card and/or sent over the Internet using a HTTP RESTful web service. Version 2.0 sees a number of new features and enhancements which include:
- Added feature to log readings to SD card
- Added feature to save setting/config to EEPROM using browser
- Modified JSON format and accompany web service
- Perform load testing on hardware
- Sense when network down, when up send all unsent readings
APMR has a new project website (http://smakonin.github.com/APMR/) and the project source code can be down loaded from GitHub (https://github.com/smakonin/APMR).
Special thanks to TJ Moon who worked on this project all summer long!
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New Consumption Report
So I have finally had a chance to update the My Smart Home: Consumption Report to reflect readings from the new DENT PowerScout 18 meters and a new database design. Checkout:
http://makonin.com/report_consumption.html.
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Home Occupancy Agent: Occupancy and Sleep Detection
Earlier this month I learnt that I (and co-author Fred Popowich) will have my first journal paper published in the GSTF Journal on Computing in the April/2012 edition (vol 2, no 1). Here is the paper abstract:
Smart homes of the future will have a number of different types of sensors. What types of sensors and how they will be used depends on the behaviour needed from the smart home. Using the sensors to automatically determine if a home is occupied can lead to a wide range of benefits. For example, it could trigger a change in the thermostat setting to save money, or even a change in security monitoring systems. Our prototype Home Occupancy Agent (HOA), which we present in this paper, uses a rule based system that monitors power consumption from meters and ambient light sensor readings in order to determine occupancy. The agent is also able to determine when the occupants are asleep, and thus provide the potential for further energy saving opportunities.
Keywords: Smart Home, Intelligent Agent, Occupancy Detection, Power Consumption, Ambient Light Sensors, Sleep Detection, Energy Conservation, Sustainability.
Keep your eyes peeled as there are a number of other submissions that I am either waiting on review or in the midst of writing. Write on…
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The Affect of Lifestyle Factors on Eco-Visualization Design
On Monday I learnt that my full co-authored (with Maryam H Kashani and Lyn Bartram) paper “The Affect of Lifestyle Factors on Eco-Visualization Design” was accepted at Computer Graphics International (CGI 2012). So I will be travelling to Bournemouth University in the UK. Here is the paper abstract:
As people become more concerned with the need to conserve their power consumption we need to find ways to inform them of how electricity is being consumed within the home. There are a number of devices that have been designed using different forms, sizes, and technologies. We are interested in large ambient displays that can be read at a glance and from a distance as informative art. However, from these objectives come a number of questions that need to be explored and answered. To what degree might lifestyle factors influence the design of eco-visualizations? To answer this we need to ask how people with varying lifestyle factors perceive the utility of such devices and their placement within a home. We explore these questions by creating four ambient display prototypes. We take our prototypes and subject them to a user study to gain insight as to the questions posed above. This paper discusses our prototypes in detail and the results and findings of our user study.
Keywords: eco-visualization, informative art, ambient display, power consumption, energy conservation, sustainability.
CGI 2012 received 178 papers, 111 were rejected, 35 were selected for the CGI 2012 Special Issue of The Visual Computer, 32 were selected for the Electronic Proceedings.
I will be updating the Elements of Consumption (EoC) project page soon. I plan to be releasing the project source code as an open source project along with details on how to create your own custom ambient display.
Branch Circuit Power Metering
Over the weekend I was busy replacing my 2 INO6200 meters with 2 DENT PowerScout 18 branch circuit power meters (BCPM). Instead on only monitoring 2 circuits (the main house and the heat pump), I can now monitor 24 different circuits!
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- PS18 Install – Open Panels
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- PS18 Install – Power Junction Box
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- PS18 Install – Finished Install
I will post a link to a real-time consumption report soon. I am having issue with my ModbusTCP server and a lack of time to program the report.
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Arduino RTC Shield Schematic
Arduino RTC Shield
I have now posted information on the Arduino Power Meter Reader (APMR) project page on how I created the Arduino RTC (Real Time Clock) Shield I used.
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Arduino RS485 Shield Schematic
Arduino RS485 Shield
Well I have been too busy with course work 
…but I found some time to post up the schematic for the Arduino RS485 Shield I used for my Arduino Power Meter Reader (APMR) project.
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