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- Path: sparky!uunet!mcsun!sunic!chalmers.se!news.chalmers.se!dtek.chalmers.se!d2bohre
- From: d2bohre@dtek.chalmers.se (Henrik Bohre)
- Newsgroups: comp.robotics
- Subject: Re: Tracked mobile robot dead-reckoning
- Keywords: mobile robots
- Message-ID: <d2bohre.728047517@dtek.chalmers.se>
- Date: 26 Jan 93 11:25:17 GMT
- Sender: news@news.chalmers.se
- Organization: Chalmers University of Technology, Gothenburg Sweden
- Lines: 35
- Nntp-Posting-Host: hacke5.dtek.chalmers.se
-
-
- feng@srvr1 (Liqiang Feng, ) writes:
-
- >I am working on the navigation problem for a tracked vehicle. The dead-reckonin
- g
- >based on drive motor encoders does not work really well because of the slippage
- and
- >skid when the robot turns. I do not have much experience working with tracked v
- ehicles.
- >Are there any good solutions to this problem? Have anyone used those absolute
- >velocity sensor or accelerometers to measure the absolute motion of the vehicle
-
- >directly? Any good or bad experience with them? Has anyone used some cheap gyro
- s,
- >such as those used in model planes, to measure the orientation of a robot? Any
- >experience or reference with them? Thanks a lot.
-
- >My E-mail address: feng@engin.umich.edu
-
- >L. Feng
-
- How is your mobile platform constituted?
- o The turtle style - Two wheels with a motor each, steered by differentiating
- the speed of the weels.
- o The car style - One (or more) steerable wheels.
- o Others?
- o What kind of precision do you need (dm, inch, cm)?
-
- I don't have any great solution to this problem, but I guess it's hard to get
- high precision without any feedback from external sensors. I'd be interested
- to know if you get some response from people who knows more about this.
-
- Greetings Henrik
-
- @>-+--
-