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Changes for page Basic design

Last modified by nfl on 2025/01/30 12:05
From version 7.1
edited by nbw
on 2014/06/22 18:50
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To version 5.1
edited by nbw
on 2014/06/20 09:36
Change comment: There is no comment for this version

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1 -= Basic design =
2 2  
3 3  
4 -
5 5  {{toc/}}
6 6  
7 7  We compose our railway controller from several train controllers, combined with controllers for mutual exclusion.
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16 16  
17 17  **For each controlled train** one state and the corresponding transitions are added.
18 18  
19 -A train **must** signal the wish to enter a segment by setting the variable **bool <segment>_req[trainNum] **to true.
20 -The right to enter a segement is given to the train by setting the variable **int <segment>_perm** to the train number.
21 -After leaving a segment the train **must** remove his request by setting <segment>_req[trainNum] to false again.
22 -
23 23  For a free track the *_perm variable is set to -1 and all tracks, apart from starting positions, are initialised with -1. For the starting positions the *_perm variables are set to the corresponding train number and the *_req variable for the train is set to true.
24 24  
25 25  **A train must not enter a segment or alter the settings of a segment without holding the lock for the segment. No exceptions from this rule are allowed.**
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1 -9471042
1 +9471036
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1 -https://rtsys.informatik.uni-kiel.de/confluence//wiki/spaces/SS14Railway/pages/9471042/Basic design
1 +https://rtsys.informatik.uni-kiel.de/confluence//wiki/spaces/SS14Railway/pages/9471036/Basic design