MyoRun

In the past two weeks, a lot of progress was made towards our final product. During the Thanksgiving break I worked with Kayla to build the classifier that would be used to interpret the muscle input signals and classify which movement it belonged to. We integrated together the feature extraction that Kayla had been working on along with the SVM model that I had been working on. Afterwards, we integrated our classifier with the game that Alex had been developing…

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This week, I worked on improving the base models for making simulated data. I’ve found that the hyperbolic secant function is a great representation of the peaks in muscle movements, so I’ve been using linear combinations of that to make a good prior distribution function. I have also been familiarizing myself with scikit, a python package that has SVM support, and could help us with our classifier.  Part of our project involves classification of signals, and to better aid that…

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At the beginning of the week, we discussed ethics and how it relates to this class, which got us considering it in the context of our project. We were able to consider the ethical implications of our project and the kind of politics driving a need for it/the politics it would catalyse with its creation. Also in the beginning of the week, we met to discuss what we had learned from integration test #2, and talk about what we should…

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This past week, I made a lot of progress on the data collection side, and was able to take the hardware system I had been working on the past couple of weeks and record data on it. To start off, I recorded data from a single electrode, as was seen in the previous update, and used that for our first integration test. This way, we were able to confirm that our communication protocols were working smoothly and in real time,…

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This week I started off finding a way to integrate Arduino and python, such that data could be recorded in one and immediately sent to the other in real time. Using serial communication, I was able to open up a port on my computer and continuously write to it in one program and read from it in another. Once I had communication between the two programs working continuously, I wrote a python script to collect trials of pilot data. You…

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This past week, our parts arrived, so I spent most of my time playing with the hardware and sensors, and designing a system that will connect all eight sensors into the Arduino optimally. I have been soldering wires to all of the sensors individually, and connecting them together with the microcontroller. On the signal processing/software side, I have been sandboxing Arduino code to interface with the eight sensors we intend to us. I have also been exploring options for exporting…

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This past week, I got the preliminary hardware up and running, including the MyoWare Muscle Sensor System and the sandbox code for it. I tested a single electrode to verify that our chosen hardware would work before we moved forward with it. With this, we now know that our approach is valid.  Here’s some pictures of the process. This was tested on the right brachioradialis muscle, with the reference electrode put on the humeral medial epicondyle.     I also put…

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