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Unread 14-02-2004, 13:35
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Re: IR Sensor questions

Quote:
Originally Posted by hedgehogger
Can someone help me interpret the comment at the top of tracker.c?
IR sensor 1 is the left sensor on the left tracker
IR sensor 2 is the right sensor on the left tracker
IR sensor 3 is the left sensor on the right tracker
IR sensor 4 is the right sensor on the right tracker
This seems to make some design assumptions that I have not read somewhere? If I were to diagram this looking at the robot from the top - would it look something like this?

IR2 IR3
+-----------------+
|------front-------|
IR1|-----------------|IR4
|-----ROBOT------|
|-----------------|
|-----------------|
|------back-------|
+-----------------+
No, each servo motor has two infrared sensors mounted on them. Each one of these assemblies is called a "tracker". You'll need at least two trackers, spaced as far apart as you can get them, before you can triangulate a heading and distance to the beacon(s). This is from the FAQ:

Q: Got any photos of an example tracking assembly?
A: Glad you asked. Have a look here.


-Kevin
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Kevin Watson
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