CCHRC Seminar Alan Mitchell Analysis North May 6, 2014

Overview Data Collection Technologies AHFC Web Application for Data Collection and Analysis Data Analysis and Modeling Tools based on the Python Programming Language

Data Collection Technologies Monnit Wireless Sensors – Battery Powered 5+ Year Battery Life typical w/ AA Batteries – No Configuration on Site – Inexpensive $84 for External Temperature Sensor $230 for Ethernet Gateway $1-3 / year per sensor for Online Storage/Mangement – Many Sensor Types: Temperature, Humidity, Motion, Light, Pulses, Pressure, Switch Closure, Voltage – Accuracy sometimes not Great. Some issues with Noise Interference.

Monnit Wireless Sensors, cont’d

Related Technologies – Motor Sensor Simple Installation, No Wiring Required Record every On and Off of the Motor – Option Cloudgate Cellular Internet Gateway Supports all major US Cellular Carriers. $10/mo GCI Plan. Can Deliver Internet to non-Monnit Devices as Well Can remotely mount Antenna for poor Signal Areas – Monnit Cellular Gateways CDMA (ACS, Verizon) Sensor Gateway. No Village Coverage. GSM Sensor Gateway under Development. GCI in the Villages. $300 w/o Data Plan

“Free” Sensors Internet Weather Services – National Weather Service – Weather Underground + others. Generally Free for low usage, but Charges for moderate/high usage – Generally High Quality Data Building Control Systems Smart Boiler and Variable Speed Drive Controllers w/ Computer Interfaces

Raspberry Pi Linux Computer Runs Debian Linux – 10s of thousands of Free Software Packages available $40 for bare board. $70 w/ case, power supply, and SD Card “hard drive”. Can copy SD card to Replicate a System. 2+ million Sold. Tons of Info on the Web. Data Collection Possibilities – Serial Connection to Boiler Controls – 1-Wire Sensor Interface – Labjack – Most any USB Device Python is Main Programming Language for the Pi

AHFC Data Collection Web App Can collect Data from: – Monnit Wireless Sensors – Building Control Systems (e.g. AHFC HQ) – Internet Weather Services – Any source that can make HTTP requests (e.g. Raspberry Pi computer) Extensive Analysis Tools Requests for Use to AHFC

Things to Demo Glacierview Dashboard AHFC HQ – Current Sensor Values – Gas Meter New Zoom Daily Averages, 1 month Add Outdoor Temperature – R2D2 Conference Room Light Hourly Profile Look at just Mon-Fri, Sat, & Sun Manor DHW Flow Rate Histogram – Max 10 min reading = 14 gpm. Max 1 hour = 8 gpm. 2 x 35 gpm installed Manor Gas vs. Outdoor Temp XY, 8 hour averages – Snowmelt Energy Use – Peak Sizing and Summertime Sizing. 4 x 1.7 MMBtu/hr boilers Download to Excel – Manor Gas and Outdoor Temperature