Author Topic: Sensor talk  (Read 4111 times)

Louis L

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Sensor talk
« on: January 10, 2017, 01:45:20 PM »
We need to start thinking about potential sensor uses.
- what is the use?
- when is it used?
- what kind of sensor do we need for that use?

Use case: Placing a gear on the lift during autonomous. The gear is pre-loaded prior to the match.
Sensor: navigation & camera to locate lift. Camera for final alignment. Tactile to detect if we hit wall of airship.

Use case: Shooting "fuel" into "boiler" during autonomous. Fuel is pre-loaded. Things could vary depending on when and where we do this.
Sensor: camera / vision tracking to locate boiler. Steering or turret rotation for alignment.

Use case: Shooter is shooting "fuel" to the upper boiler. For some reason, it jams and won't spin.
Sensor: Test for stall condition by checking current loading of motor via power distribution board.

Use case: Shooting "fuel" into upper goal. To get consistent shots we want the shooting wheel to be at roughly the same speed each time we use it.
Sensor: rotational speed of shooting wheel.

« Last Edit: January 21, 2017, 11:25:51 AM by Louis L »

Rakesh V

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Re: Sensor talk
« Reply #1 on: January 14, 2017, 04:20:07 PM »
Gear System
Light/Color Sensor for gear mechanism,

Pot for angle of shooter hood
Pot for turret rotation, maximum of 1 DIO

4 encoders for swerve drive, maximum of 4 PWM inputs used

Proximity Sensor for starting to climb(aligning with rope),maybe to recognize when near top


Louis L

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Re: Sensor talk
« Reply #2 on: January 15, 2017, 09:29:36 PM »
We tested the Pixy camera over the weekend and it was pretty impressive. It can track multiple objects and perform location calculations at ridiculous speeds. The best part is that it can do all this without involving the host it's connected to. So we can track objects with no software overhead on the roboRio.

If we're going to use this camera, we need to figure out how to use it and where to use it on the playing field.