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root / trunk / code / projects / mapping / robot / multi_robot_behavior.txt @ 965

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/**
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Optimal Behavior for Mapping
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Desired Properties
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- Overlapping maps
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- Shared origin
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 * robots must know where they are in relation to each other
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Actual Behavior
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- make BOM contact with another robot
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 * estimated distance reading would help
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- try to follow another robot
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 * could parallel path but moved over slightly 
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   to give a wider view while also corroborating data
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 * then treat as leader/follower in actions
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 * get groups to link up with each other and then separate to 
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   establish meeting point between maps
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Thoughts on improving overall efficiency
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Robot:
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- use a shorter polling interval for rangefinders, 
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  then average readings between wireless polling intervals
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- if the rangefinder value = MAX, then mark it as -1
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  so the program doesn't draw that point
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- try bursts of data every second or farther apart
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  containing multiple data points
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 * this reduces stress on wireless timing and allows for 
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   overhead created by token ring
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- one solution to the 'master origin' problem for multiple robots
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  is to start each robot at the same point with the same orientation
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 * this isn't very useful and takes effort, but it works
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 * could also establish an initial offset in robots,
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   but accurate initial placement would still be an issue
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Server:
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- if the rangefinder value = MAX or -1, don't use that point
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  or set it to infinity
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- if robots have linked as leader/follower pair, use
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  one point of origin for both robots
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- when two or more robots meet, set one robot as the 
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  master coordinates, and modify all other robots to use
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  those master coordinates
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 * easiest is to start a new map with one robot at the origin and
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   all others starting based off that robot
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 * backdating the coordinate change would be better
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 * using both approaches is likely most accurate
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*/