Wiki
Version 9 (Niranjini Rajagopal, 01/28/2013 06:59 pm)
1 | 1 | Anthony Rowe | h1. Building Energy Optimization |
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2 | 1 | Anthony Rowe | |
3 | 2 | Niranjini Rajagopal | h2. Project Description |
4 | 2 | Niranjini Rajagopal | |
5 | 2 | Niranjini Rajagopal | The Building Energy Optimization System is a sensor network consisting of several power and environmental sensors to monitor and understand energy usage patterns with the objective of giving the user feedback on reducing the energy consumption. |
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7 | 2 | Niranjini Rajagopal | h2. System Components |
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9 | 3 | Niranjini Rajagopal | The network architecture is shown in the figure below. |
10 | 3 | Niranjini Rajagopal | |
11 | 6 | Niranjini Rajagopal | !Energy_Sensor_Network4.jpg! |
12 | 3 | Niranjini Rajagopal | |
13 | 7 | Niranjini Rajagopal | The Three-phase energy meter is used to measure the aggregate energy consumption of all appliances. Each plug-through power meter measures the energy of an individual appliance. Every magnetic-field based energy sensor is placed in the proximity of an appliance, and detects the state change when the appliance turns on or off. The environmental sensors measure the ambient light, temperature, audio, pressure, acceleration and humidity and detect human motion in the proximity. The thermal sensor is mounted on the ceiling and generates a thermal map upon scanning the entire room. The thermal and the environmental sensors data can be correlated with the per-appliance energy consumption and can give useful information on usage patterns, and can also help detect building and appliance faults. |
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15 | 2 | Niranjini Rajagopal | Each of the sensors are described briefly below: |
16 | 1 | Anthony Rowe | * Environmental sensors |
17 | 9 | Niranjini Rajagopal | The figure below shows the environment sensing board with all its sensors labeled. |
18 | 1 | Anthony Rowe | |
19 | 1 | Anthony Rowe | !ff3-env-sensor.jpg! |
20 | 1 | Anthony Rowe | |
21 | 9 | Niranjini Rajagopal | * Thermal Sensor |
22 | 1 | Anthony Rowe | * Three-phase energy meter |
23 | 8 | Niranjini Rajagopal | !3phase-meter.jpg! !3phase-bottom.jpg! |
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25 | 8 | Niranjini Rajagopal | * Plug-through energy meter |
26 | 9 | Niranjini Rajagopal | ** 1 outlet (110-240VAC) |
27 | 9 | Niranjini Rajagopal | ** Mechanical relay switching |
28 | 9 | Niranjini Rajagopal | ** RMS Current, RMS Voltage, True Power, Apparent Power, Reactive Power, Power Factor |
29 | 9 | Niranjini Rajagopal | ** 2KHz Sampling Rate |
30 | 9 | Niranjini Rajagopal | ** 1W resolution with 1700W max load |
31 | 9 | Niranjini Rajagopal | ** Local processing support asynchronous pushing of power events on change |
32 | 9 | Niranjini Rajagopal | !ff3-plug-front.jpg! !ff3-plug-back.jpg! |
33 | 9 | Niranjini Rajagopal | |
34 | 2 | Niranjini Rajagopal | * Magnetic-field based energy meter |