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Goals
Background and strategic fit
Assumptions
Requirements
We want to design a vehicle dashboard that acts as an instrument panel to the driver
The dashboard design should provide the pertinent information at a glance
Assumptions
- This will be displayed on a LCD display mounted on the vehicle, which will be visible to the driver.
Requirements
The driver display should show the following
| # | Title | User Story | Importance | Notes |
|---|---|---|---|---|
| 1 | Speed | How fast the car is moving | ||
| 2 | State of car | Drive/Park/Reverse | ||
| 3 | Power Usage Percentage and Charge | A bar that scales based on how much of your peak power you're using If you're using regen, and how much you're generating | ||
| 4 | Fault Information | Communicate errors to the user | ||
| 5 | Turn Signals/Hazards | Indicators for turn signals | ||
| 6 | "Car is Ready to Drive" | Some indicator that the car is ready to drive |
Design
User interaction and design
Questions
Below is a list of questions to be addressed as a result of this requirements document:
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It is our belief that as an electric vehicle, we should showcase and design to accentuate the strengths that an electric vehicle has. This is not to say that we want to present a completely novel user-experience that throws away any preconceptions of how a vehicle should run—rather, we wish to build upon preconceived notions of a "normal" car, and adjust certain areas of the User Experience to better match with the user's expectations. For the majority of of our drivers, they have not driven in an electric vehicle, and the goal is to present an experience such that we can take "anyone off the street, put them in our car, and they can drive it." This means our interface should remain familiar to the driver, and retain design hinting or provide hints.
Given that this information is being rendered on an LCD display, rather than applying skeuomorphic design principles, we rather embrace the fact that this is an electric vehicle, and provide a cleaner interface that provides the necessary information at a glance—this means that we question whether we want to add a feature purely "because it is cool", and focus on a simple and elegant interface that displays the necessary information. The electronic display inspires a design of the future, with its capabilities of producing clean and colourful sharp displays.
A lot of our user interface design draws inspiration from Andrew Kim's Toyota Doko design project.
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The driver display will share its backend with the telemetry server. Since none of us have experience working with Qt or other frontend frameworks, we will use JavaScript (TypeScript, to make things less painful) and subscribe to a websocket that the Raspberry Pi server exposes.