Wiki
Version 22 (Niranjini Rajagopal, 10/16/2013 05:45 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. |
6 | 2 | Niranjini Rajagopal | |
7 | 2 | Niranjini Rajagopal | h2. System Components |
8 | 2 | Niranjini Rajagopal | |
9 | 6 | Niranjini Rajagopal | !Energy_Sensor_Network4.jpg! |
10 | 3 | Niranjini Rajagopal | |
11 | 14 | 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 electromagnetic-field based (EMF) 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 scanner 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. |
12 | 2 | Niranjini Rajagopal | |
13 | 1 | Anthony Rowe | Each of the sensors are described briefly below: |
14 | 14 | Niranjini Rajagopal | |
15 | 16 | Niranjini Rajagopal | # *Environmental sensors* |
16 | 10 | Niranjini Rajagopal | |
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 | 1 | Anthony Rowe | |
22 | 18 | Niranjini Rajagopal | |
23 | 16 | Niranjini Rajagopal | # *Thermal Scanner* |
24 | 14 | Niranjini Rajagopal | ** Low-Cost Thermal Scanner |
25 | 1 | Anthony Rowe | ** Distributed Scanning |
26 | 14 | Niranjini Rajagopal | ** 3D model construction |
27 | 16 | Niranjini Rajagopal | |
28 | 1 | Anthony Rowe | !Thermal-scanner.jpg! !Thermal-scanner-3D.jpg! |
29 | 1 | Anthony Rowe | |
30 | 14 | Niranjini Rajagopal | |
31 | 18 | Niranjini Rajagopal | |
32 | 16 | Niranjini Rajagopal | # *Three-phase energy meter* |
33 | 13 | Niranjini Rajagopal | ** 3-Phase Circuit Panel Meter (110-240VAC) |
34 | 13 | Niranjini Rajagopal | ** RMS Current, RMS Voltage, True Power, Apparent Power, Reactive Power, Power Factor |
35 | 1 | Anthony Rowe | ** 2KHz Output Rate |
36 | 13 | Niranjini Rajagopal | ** 1W resolution with 20KW max load |
37 | 13 | Niranjini Rajagopal | ** Local processing support asynchronous pushing of power events on change |
38 | 16 | Niranjini Rajagopal | |
39 | 1 | Anthony Rowe | !3phase-meter.jpg! !3phase-bottom.jpg! |
40 | 22 | Niranjini Rajagopal | (Details of the current and voltage connections to the meter are present in pdf at the end of this page) |
41 | 1 | Anthony Rowe | |
42 | 8 | Niranjini Rajagopal | |
43 | 18 | Niranjini Rajagopal | |
44 | 16 | Niranjini Rajagopal | # *Plug-through energy meter* |
45 | 9 | Niranjini Rajagopal | ** 1 outlet (110-240VAC) |
46 | 9 | Niranjini Rajagopal | ** Mechanical relay switching |
47 | 1 | Anthony Rowe | ** RMS Current, RMS Voltage, True Power, Apparent Power, Reactive Power, Power Factor |
48 | 9 | Niranjini Rajagopal | ** 2KHz Sampling Rate |
49 | 9 | Niranjini Rajagopal | ** 1W resolution with 1700W max load |
50 | 1 | Anthony Rowe | ** Local processing support asynchronous pushing of power events on change |
51 | 1 | Anthony Rowe | |
52 | 21 | Anthony Rowe | !plug-front.jpg! |
53 | 18 | Niranjini Rajagopal | |
54 | 14 | Niranjini Rajagopal | |
55 | 9 | Niranjini Rajagopal | |
56 | 17 | Niranjini Rajagopal | # *Electromagnetic-field (EMF) sensor* |
57 | 17 | Niranjini Rajagopal | ** Contact-less sensing of current |
58 | 17 | Niranjini Rajagopal | ** Automatic gain adjustment every 100ms |
59 | 20 | Niranjini Rajagopal | ** Transmits gain value to indicate strength of measured field |
60 | 19 | Niranjini Rajagopal | |
61 | 19 | Niranjini Rajagopal | !emf-sensor.jpg! |