Experimental Physics and Industrial Control System
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Hi Bob,
Using radiating cable instead of classical antennas is a nice
solution for the wireless connection. The access points stay outside
the tunnel, and the radiating cable along the inside of the tunnel
creates an equally strong WLAN connection around the ring.
Lots of suppliers, search for "radiating cable wifi".
Cheers,
~Ralph
On 22/09/2015 22:53, Bob Gunion wrote:
Hi all,
At the ALS we have a lack of adequate temperature
monitoring on our magnet coils. We would like to address
this, but the cost of wiring to all the thermocouple modules,
between power and serial or ethernet communications, is quite
high, so we though we might try some wireless devices. There
are some on the market (see the links below) that can handle
4-16 thermocouples apiece and run on batteries, eliminating
all wiring except to the thermocouples themselves. A
self-healing mesh network like Zigbee or Wireless-HART would
be ideal, but we are also considering 802.11b/g-type wireless
(which has the added benefit of providing laptop/tablet access
inside the tunnel during shutdowns).
So, I'm soliciting advice and experience from the
community:
- Has anyone tried a solution like this in other
accelerators?
- Have any particular devices worked well, or not?
- Have any radiation damage issues been addressed using
shielding?
Here's some links to candidate devices:
Thanks,
Bob Gunion
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ANJ, 16 Dec 2015 |
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