The document summarizes the results of a two-year Internet of Things project funded by TSB to monitor energy savings in 26 highly instrumented homes across the UK. Data was collected from the homes every minute via Wattbox devices and totaled over 800 million records over two years. A cloud-based solution was developed to compress, encrypt, transmit, process, and format the data for delivery to two separate databases. The solution successfully delivered over 70% of the data to the central database, and all 26 Wattbox properties were included upon completion of the monitoring period. Initial analysis of the data is now available online.

1. Results of our TSB
funded IoT project

2. About Me
John Nunn
Tortrix Ltd
Solutions Architect / Managing Director
john@tortrix.net
@johnnunn
tortrixltd

3. Our Clients

4. Our Projects
Retrofit for the Future Internet of Things
Convergence

5. Retrofit for the Future
Lead: Wattbox Ltd
2 year monitoring project
Compare & Contrast energy saving building improvements
26 Highly Instrumented Homes across the UK
Data to be imported into central database EMBED.
Average of 30 different data points per property
Data captured every minute
26x30x(60x24) = 1,123,200 data points per day or nearly 820 million data records in
two years

6. Challenges
Data needed to be supplied to two locations:
 EMBED (AMEE) – for the EST
 Oswald Consultancy – for in depth analysis
A large amount of data (5 million data points per day), we were also going to be
managing the entire fleet of Wattbox devices (over 100).
Widely spaced locations (UK wide)
Unreliable connectivity (mostly 3G)

7. 1. Data is compressed on the Wattbox
and transmitted across the internet in
an encrypted format to the Tortrix
cloud service.
2. The Tortrix Service receives the data,
decrypts the transmission and
uncompressed the data.
3. The Tortrix Cloud service processes the
data and transforms it into the correct
formats for both the EMBED Database
and Oswald Consultancy’s analysis
System, removing unnecessary data
points.
4. The newly formatted data is
transmitted to the EMBED database by
the Tortrix Service.
5. The correctly formatted data is
transmitted to the Oswald Consultancy
analysis system by the Tortrix Service.
Solution

8. Use of Cloud
Large Volume of data
5 million data points per day
3.6 billion data points in 2 years
High Availability
Elastic computing power
High usage 1am – 4am
Low usage 5am – 12pm
Windows Azure hosted Web
service for Data Import from
Wattbox.
SQL Azure database for received
data.
Windows Azure based service for
processing the data and sending to
embed & Oswald Consultancy.
Widows Azure hosted Web Site for
configuration and management of
Wattboxes.

9. Results
The monitoring period has come to an end.
Currently only 37 properties in the database.
All 26 Wattbox based properties included (100%).
>70% of the data stored in embed came via our solution.
First analysis available http://www.retrofitanalysis.org/

10. Questions?