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Jan,
I think that using a buffer is a very good idea. This way you spread out the transmit time over the cable so bandwith is reduced. Also, digitizing early seems like a good idea. Digitizing in itself will help reduce errors by making the system less sensitive to noise.
My only concern is that the more electronics that are on the fish, the more upset I'll be if the cable snaps or the fish gets flooded!
One idea I had was to put a whole industrial PC down there. This would make life simple, because all kinds of values could be tweaked from the surface, using a remote control program, but suppose things went wrong?! I quickly scrapped that idea!
I guess what I am trying to say is that I feel the cheaper the fish electronics the better.
Cheaper doesn't mean less funcional though. That is why I thought of the Ethernet idea. I figured that using a standard part would give us more functionality for less.
I know virutally nothing about using fiber optic transmissin lines, but I suspect it may require expensive electronics in the fish, and/or an expensive cable.
If I am wrong then please let me know! My only point is that I want to avoid putting expensive parts where they might get damaged.
-Bob
I think that using a buffer is a very good idea. This way you spread out the transmit time over the cable so bandwith is reduced. Also, digitizing early seems like a good idea. Digitizing in itself will help reduce errors by making the system less sensitive to noise.
My only concern is that the more electronics that are on the fish, the more upset I'll be if the cable snaps or the fish gets flooded!
One idea I had was to put a whole industrial PC down there. This would make life simple, because all kinds of values could be tweaked from the surface, using a remote control program, but suppose things went wrong?! I quickly scrapped that idea!
I guess what I am trying to say is that I feel the cheaper the fish electronics the better.
Cheaper doesn't mean less funcional though. That is why I thought of the Ethernet idea. I figured that using a standard part would give us more functionality for less.
I know virutally nothing about using fiber optic transmissin lines, but I suspect it may require expensive electronics in the fish, and/or an expensive cable.
If I am wrong then please let me know! My only point is that I want to avoid putting expensive parts where they might get damaged.
-Bob
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