Inertial navigation peripheral/System design: Difference between revisions

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=== Python "Driver" Class ===
=== Python "Driver" Class ===

The driver class for the Locograph will be a Python class called "Locograph". Locograph will handle connecting to the USB device using libusb, meaning a user of this class merely needs to instantiate one and start asking it for values.

Here is something like a UML diagram for Locograph:

'''Locograph'''
A Locograph has the following attributes:
[*] '''position''': A tuple of length three - (x, y, z) - expressing coordinate change relative to the laptop in the global Cartesian space.
[*] '''bearing''': A number - 0 to 1 - expressing how much of a rotation the laptop has completed in the global Cartesian space.

A Locograph offers the following methods:
[*] '''getPosition()''': returns self.position
[*] '''getBearing()''': returns self.bearing
[*] '''_updateFromDevice()''': polls the USB device for new values.
[*] '''_mapDevice()''': sets up the USB device originally.
[*] '''reset()''': client asks for coordinate reset.
[*] '''_reset()''': ask USB device for coordinate reset.


=== Python "Game" App ===
=== Python "Game" App ===

Revision as of 23:46, 4 November 2008

System schematics

OlinInterialNavigationSystemDiagram.png

note: Greg fails at typing "inertial"

Software Systems

OlinInertialNavigationSoftwareOverview.png

Microcontroller

Python "Driver" Class

The driver class for the Locograph will be a Python class called "Locograph". Locograph will handle connecting to the USB device using libusb, meaning a user of this class merely needs to instantiate one and start asking it for values.

Here is something like a UML diagram for Locograph:

Locograph A Locograph has the following attributes: [*] position: A tuple of length three - (x, y, z) - expressing coordinate change relative to the laptop in the global Cartesian space. [*] bearing: A number - 0 to 1 - expressing how much of a rotation the laptop has completed in the global Cartesian space.

A Locograph offers the following methods: [*] getPosition(): returns self.position [*] getBearing(): returns self.bearing [*] _updateFromDevice(): polls the USB device for new values. [*] _mapDevice(): sets up the USB device originally. [*] reset(): client asks for coordinate reset. [*] _reset(): ask USB device for coordinate reset.

Python "Game" App

Form factor

(insert sketches)

(include sketch model picture)