IR Tracker - Revision history

AliceZhao: /* Electrical Design */

2008-03-21T10:24:30Z

Electrical Design

← Older revision		Revision as of 05:24, 21 March 2008
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	[[image:Circuit_Diagram.jpg\|left\|IR Tracker Schematic\|thumb\|500px]]		[[image:Circuit_Diagram.jpg\|left\|IR Tracker Schematic (includes original H-Bridge in design --> use MOSFETs instead)\|thumb\|500px]]
	[[image:Circuit_Top_View.jpg\|right\|IR Tracker Top View\|thumb\|500px]]		[[image:Circuit_Top_View.jpg\|right\|IR Tracker Top View\|thumb\|500px]]

2008-03-21T10:22:10Z

Electrical Design

← Older revision		Revision as of 05:22, 21 March 2008
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	<br clear=all>		<br clear=all>

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	<b>PIC </b>		<b>PIC </b>

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	The PIC is the central controller of the IR Tracker.		The PIC is the central controller of the IR Tracker.

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	<b> MOSFETs </b>		<b> MOSFETs </b>

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	The MOSFETs are used as intermediate components between the PIC and the servo motors. It allows the Pittman motors to run in one direction.		The MOSFETs are used as intermediate components between the PIC and the servo motors. It allows the Pittman motors to run in one direction.

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	<b> Inverting Schmidt Trigger </b>		<b> Inverting Schmidt Trigger </b>

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	The Schmidt Trigger acts as an intermediate between both the PIC to the encoders on the motors and the PIC to the Hall Sensors. It helps filter out noisy signals and invert signals to be readable for the PIC.		The Schmidt Trigger acts as an intermediate between both the PIC to the encoders on the motors and the PIC to the Hall Sensors. It helps filter out noisy signals and invert signals to be readable for the PIC.

2008-03-21T10:21:41Z

Electrical Design

← Older revision		Revision as of 05:21, 21 March 2008
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	<font size = -1>		<font size = -1>
	The Schmidt Trigger acts as an intermediate between both the PIC to the encoders on the motors and the PIC to the Hall Sensors. It helps filter out noisy signals and invert signals to be readable for the PIC.		The Schmidt Trigger acts as an intermediate between both the PIC to the encoders on the motors and the PIC to the Hall Sensors. It helps filter out noisy signals and invert signals to be readable for the PIC.

	<br clear=all>

	==Code==		==Code==

2008-03-21T10:20:48Z

Electrical Design

← Older revision		Revision as of 05:20, 21 March 2008
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	* 2 IR Detector / Emitter Pairs		* 2 IR Detector / Emitter Pairs
	* 2 Hall Sensors & Small Magnets		* 2 Hall Sensors & Small Magnets
			* 2 MOSFETs
	* 1 H-Bridge (L298)
	* 1 Inverting Schmidt Trigger (74HC14)		* 1 Inverting Schmidt Trigger (74HC14)

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	<font size = -1>		<font size = -1>
	The Schmidt Trigger acts as an intermediate between both the PIC to the encoders on the motors and the PIC to the Hall Sensors. It helps filter out noisy signals and invert signals to be readable for the PIC.		The Schmidt Trigger acts as an intermediate between both the PIC to the encoders on the motors and the PIC to the Hall Sensors. It helps filter out noisy signals and invert signals to be readable for the PIC.

			<br clear=all>

	==Code==		==Code==

2008-03-20T17:44:22Z

Problems Encountered

← Older revision		Revision as of 12:44, 20 March 2008
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	* (Electrical) We added Schmidt Triggers to clean up the noisy signals from the servo motors to the PICs.		* (Electrical) We added Schmidt Triggers to clean up the noisy signals from the servo motors to the PICs.
	* (Code) Originally coded to track direction of change of the IR emitter and supposed to move accordingly. We encountered a lot of noise. We changed the code to find the exact position of the IR emitter instead.		* (Code) Originally coded to track direction of change of the IR emitter and supposed to move accordingly. We encountered a lot of noise. We changed the code to find the exact position of the IR emitter instead.
	* (Electrical) The ~~Schmidt~~ ~~Triggers~~ ended up heating up the entire circuit. In our final design, we chose to use MOSFETS in their place.		* (Electrical) The L298N H-bridge ended up heating up the entire circuit. In our final design, we chose to use MOSFETS in their place.

	===Future Work===		===Future Work===

2008-03-20T17:43:06Z

Hall Sensors

← Older revision		Revision as of 12:43, 20 March 2008
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	<font size = +1>		<font size = +1>
	<b> ~~H-Bridge~~ </b>		<b> MOSFETs </b>

	<font size = -1>		<font size = -1>
	The ~~H-Bridge~~ is an intermediate ~~component~~ between the PIC and the servo motors. It allows the ~~servo~~ motors to run ~~forwards~~ ~~and~~ ~~backwards~~.		The MOSFETs are used as intermediate components between the PIC and the servo motors. It allows the Pittman motors to run in one direction.

	<font size = +1>		<font size = +1>
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	<font size = -1>		<font size = -1>
	The Schmidt Trigger acts as an intermediate between both the PIC to the motors and the PIC to the Hall Sensors. It helps filter out noisy signals and invert signals to be readable for the PIC~~, respectively~~.		The Schmidt Trigger acts as an intermediate between both the PIC to the encoders on the motors and the PIC to the Hall Sensors. It helps filter out noisy signals and invert signals to be readable for the PIC.

	==Code==		==Code==

2008-03-20T16:42:38Z

Final Design

← Older revision		Revision as of 11:42, 20 March 2008
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	===Final Design===		===Final Design===

⚫	[[image:Final_Design.jpg\|600px\|center]]

		⚫	[[image:Final_Design.jpg\|600px\|center]]

	===Video===		===Video===

2008-03-20T16:40:17Z

Electrical Design

← Older revision		Revision as of 11:40, 20 March 2008
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	<b>PIC </b>		<b>PIC </b>

			<font size = -1>
	The PIC is the central controller of the IR Tracker.		The PIC is the central controller of the IR Tracker.

			<font size = +1>
	<b> H-Bridge </b>		<b> H-Bridge </b>

			<font size = -1>
	The H-Bridge is an intermediate component between the PIC and the servo motors. It allows the servo motors to run forwards and backwards.		The H-Bridge is an intermediate component between the PIC and the servo motors. It allows the servo motors to run forwards and backwards.

			<font size = +1>
	<b> Inverting Schmidt Trigger </b>		<b> Inverting Schmidt Trigger </b>

			<font size = -1>
	The Schmidt Trigger acts as an intermediate between both the PIC to the motors and the PIC to the Hall Sensors. It helps filter out noisy signals and invert signals to be readable for the PIC, respectively.		The Schmidt Trigger acts as an intermediate between both the PIC to the motors and the PIC to the Hall Sensors. It helps filter out noisy signals and invert signals to be readable for the PIC, respectively.

2008-03-20T16:39:11Z

Electrical Design

← Older revision		Revision as of 11:39, 20 March 2008
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	<br clear=all>		<br clear=all>

			<font size = +1>

	<b> PIC </b>		<b>PIC </b>

	The PIC is the central controller of the IR Tracker.		The PIC is the central controller of the IR Tracker.

2008-03-20T16:37:22Z

Mechanical Design

← Older revision		Revision as of 11:37, 20 March 2008
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	* Mirror		* Mirror
	* Plexiglas		* Plexiglas


	[[image:Mechanical_Design.jpg\|center\|Mechanical Design\|700px]]		[[image:Mechanical_Design.jpg\|center\|Mechanical Design\|700px]]