Progress update since 10/6/2015

Last week our group had a presentation. The feedback is not that good. Our sub-group has to confirm the design of the bogie and present it later in the second presentation.

Progress update

Since last meeting, our team looked at the small-scale bogie design. The switching mechanism is operated by a servo and piano strings. When we try to move it, the string is not working smoothly. Therefore, we think a more solid connections will have a better performance. Also, we want the bogie design look more alike to the real design. Some modifications will be needed.

I talked about this project with one of my friends during conversations. He told me about some tracking methods that can be implemented. Although our group has already decided which method for this project, I think there are still some more ideas can be tried in the future. One of them is called Triangulation.

https://en.wikipedia.org/wiki/Triangulation#/media/File:Triangulation-boat.png

The concept of triangulation is to determine the location of a point by measuring angles to it from known points at either end of a fixed baseline, rather than measuring  distances to the point directly. The point can then be fixed as the third point of a triangle with one known side and two known angles. (Wikipedia) This method can let us track the cart when it transmit signals to the two reference points.