Subject:
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Questions on Search Patterns with Polaroid & IR
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Thu, 12 Dec 1996 07:42:25 GMT
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Original-From:
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Richard Vannoy <richardv@#nomorespam#abac.com>
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Viewed:
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1621 times
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With Handyboard, and the book "Mobile Robots", we want to use two Polaroids (50-60 KHz)
for long range detection/target acquisition and short range IR (40 KHz) for
a. Close in target pickup
b. Target avoidance when an object has been captured and it is being taken "home".
c. Wall following and searching.
Questions:
RANGE: Are we correct is using sonar for two feet plus and IR for zero to two feet? Or
will IR reach out more.
SEARCH: We don't really want a wall hugger because we are searching, so we want a wall
hugger that occasionally angles away from the wall somewhere in the direction of the
center so that a "target" in the center of the room is not missed. How about this for a
combination wall avoiding and searching algorithm:
Sensor looking ahead Sensor looking 45 degrees Action
have target? to right have target?
==================== ========================= ==================
NO NO No action, continue cruising
NO YES Turn 10 degrees left.
YES NO Turn 120 degrees left.
YES YES Turn 30 degrees left.
--
Richard T. Vannoy II richardv@abac.com
PO Box 103 Computer Programmer
La Mesa, CA 91944-0103 College Electronics Instructor
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