topic Re: Setting Conditions with A*STAR Navigation in FlexSim Forum

Setting Conditions with A*STAR Navigation

evelyn_c2 — Tue, 16 Nov 2021 03:01:46 GMT

[ FlexSim 21.2.4 ]

I have multiple lanes that each ends in a dead-end, and 3-5 AGVs moving around at any point of time. Currently my robots are getting stuck when one AGV is trying to get out of the lane while the other is trying to get in.

Is there any way to implement conditions such as 1 AGV in each lane at any point of time with ASTAR navigation?

Either by:

1. Wait outside the lane

Or:

2. Pre-calculate the zones of each AGV based on destination of transport jobs

(If the zone of the first assigned transport job is going to be occupied by another AGV, choose the next available job)

Re: Setting Conditions with A*STAR Navigation

moehlmann_fe — Wed, 17 Nov 2021 08:17:04 GMT

I am not aware of such a feature. I'm afraid you would have to manually restrict access to the lane. I believe the path of an A* traveller is only blocked a fixed distance ahead of the traveller.

For example, use process flow to control the movement and move in two steps. First to the entry of the lane, then acquire the lane as a resource and only then move the final distance. Afterwards, only release the lane once the task executer has travelled to the entry point again.

Re: Setting Conditions with A*STAR Navigation

ryan_c10 — Mon, 22 Nov 2021 19:15:30 GMT

Hi @cheecheongfun, was Felix Möhlmann's answer helpful? If so, please click the "Accept" button at the bottom of their answer. Or if you still have questions, add a comment and we'll continue the conversation.

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