Certificates for the Microsoft MyDotNetStory competition
I received the certificates for the Microsoft "My DotNet Story" competition today.
The Blog of Ian Mercer.
Related Stories
Time Series Data Compression
This new technique to compress the time series data collected by my home automation system seems to be working really well.
Ian Mercer
Home Automation
I've been working on home automation for over 15 years and I'm close to achieving my goal which is a house that understands where everyone is at all times, can predict where you are going next and can control lighting, heating and other systems without you having to do or say anything. That's a true "smart home".
Ian Mercer
Home Automation Sensors
An overview of the many sensors I've experimented with for home automation including my favorite under-floor strain gauge, through all the usual PIR, beam and contact sensors to some more esoteric devices like an 8x8 thermal camera.
Ian Mercer
Collinearity test for sensor data compression
One way to reduce the volume of sensor data is to remove redundant points. In a system with timestamped data recorded on an irregular interval we can achieve this by removing co-linear points.
Ian Mercer
Event blocks
Home automation systems need to respond to events in the real world. Sometimes it's an analog value, sometimes it's binary, rarely is it clean and not susceptible to problems. Let's discuss some of the ways to convert these inputs into actions.
Ian Mercer
Logistic function - convert values to probabilities
Another super useful function for handling sensor data and converting to probabilities is the logistic function 1/(1+e^-x). Using this you can easily map values onto a 0.0-1.0 probability range.
Ian Mercer
ATAN curve for probabilities
In a home automation system we often want to convert a measurement into a probability. The ATAN curve is one of my favorite curves for this as it's easy to map overything onto a 0.0-1.0 range.
Ian Mercer
Probabilistic Home Automation
A probabilistic approach to home automation models the probability that each room is occupied and how many people are in that room.
Ian Mercer
Multiple hypothesis tracking
A statistical approach to understanding which rooms are occupied in a smart house
Ian Mercer
A state machine for lighting control
An if-this-then-that style rules machine is insufficient for lighting control. This state machine accomplishes 90% of the correct behavior for a light that is controlled automatically and manually in a home automation system.
Ian Mercer
Home Automation States
Understanding the many different 'states' a house can have is critical to creating great home automation
Ian Mercer
Graphing gigabytes of home automation data with tableau
Some interesting charts from the gigabytes of data my home automation system produces
Ian Mercer
iBeacon meetup in Seattle - January 2015
My notes on the iBeacon meetup in Seattle held in January 2015
Ian Mercer
Home Automation Systems as a Graph
Using nodes and links to represent a home and all the devices in it
Ian Mercer
N-Gram Analysis of Sensor Events in Home Automation
Using n-gram analysis to spot patterns in sensor activations
Ian Mercer
Xamarin Forms Application For Home Automation
Building a Xamarin Forms application to control my home automation system
Ian Mercer
Showing home status with just a single RGB LED
Multicolored LEDs can convey a lot of information in a small space
Ian Mercer
A wireless sensor network using Moteino boards
The diminutive Arduino boards include a powerful transmitter/receiver
Ian Mercer
JSON Patch - a C# implementation
Ian Mercer
A RESTful API for sensor data
POSTing data to a home automation system from Arduino devices
Ian Mercer
Dynamically building 'Or' Expressions in LINQ
How to create a LINQ expression that logically ORs together a set of predicates
Ian Mercer
VariableWithHistory - making persistence invisible, making history visible
A novel approach to adding history to variables in a programming language
Ian Mercer
A Quantified House - My Talk to the Seattle Quantified Self Meetup
My talk to the Seattle Quantified Self meetup
Ian Mercer
Integrating an Android phone into my home automation system
Some new features for my home automation using an Android phone
Ian Mercer
A simple state machine in C#
State machines are useful in many contexts but especially for home automation
Ian Mercer
Convert a property getter to a setter
Ian Mercer
Task Parallel Library: A scheduler with priority, apartment state and maximum degree of parallelism
Ian Mercer
MongoDB Map-Reduce - Hints and Tips
Ian Mercer
What does a Smart House do at Halloween?
My favorite home automation features for Halloween
Ian Mercer
Exception: An object with the same key already exists in the ObjectStateManager. The ObjectStateManager cannot track multiple objects with the same key.
Help with this exception
Ian Mercer
Singleton tasks: A TaskFactory for the Task Parallel Library with 'run-only-one' semantics
Ian Mercer
Lengthening short Urls in C#
Ian Mercer
The relationship could not be changed because one or more of the foreign-key properties is non-nullable
Ian Mercer
ASP.NET MVC SEO - Solution Part 1
Ian Mercer
Home Automation Block Diagram
Ian Mercer
Building sitemap.xml for SEO ASP.NET MVC
Ian Mercer
World's Smartest House Demonstration
Ian Mercer
Tip: getting the index in a foreeach statement
A tip on using LINQ's Select expression with an index
Ian Mercer
Future proof your home with a new conduit system?
Running conduit can be expensive but maybe you don't need one to every room
Ian Mercer
404 errors on IIS6 with ASP.NET 4 Beta 2
Ian Mercer
Mixed mode assembly errors after upgrade to .NET 4 Beta 2
Fixing this error was fairly simple
Ian Mercer
The EntityContainer name could not be determined
How to fix the exception "the entitycontainer" name could not be determined
Ian Mercer
Shortened URLs should be treated like a Codec ...
Expanding URLs would help users decide whether or not to click a link
Ian Mercer
A great site for developing and testing regular expressions
Just a link to a site I found useful
Ian Mercer
Entity Framework in .NET 4
Ian Mercer
Exception Handling using Exception.Data
My latest article on CodeProject covers the lesser known Exception.Data property
Ian Mercer
ASP.NET Custom Validation
How to solve a problem encountered with custom validation in ASP.NET
Ian Mercer
Cache optimized scanning of pairwise combinations of values
Using space-filling curves to optimize caching
Ian Mercer
