Seems rather difficult...
Best way for electronics to detect a seizure would be wearing an EEG-monitor all day.
Having E. myself, I guess that probably isn't an option, it isn't comfortable to wear a cap
all day and you might get false readings every now and then. One ofcourse also needs to be
familliar with brainwave patterns to be able to read a pattern as seizure.
Never the less, in case you're interested, it is possible to build an diy EEG-monitorhttp://openeeg.sourceforge.net/doc/
I don't know whether it is a good idea, perhaps you could do something with RFID. By more or less
paving the floor with rfid tags and giving her a sensor in the form of a necklace, you could detect
that she's close to /laying on the ground. That would ofcourse not work when she gets a seizure somewhere else and expecting someone to stay put in the same room from 9-5 or limiting her acces to specific RFID-enabled locations might change her workingplace into a "prison".
It might also be possible to let her play an active role, but I'm not fond of that one as well. When she has a seizure her mind is absent and by letting her push a button every 3 minutes a system could detect she doesn't have a seizure. But once again, it's inviting false readings, when she doesn't press the button for some other reason, her co-workers may think she has a seizure.
One could prevent that by letting the device beep after 150 seconds warning she still has 30 secs
to push the button. I don't know how frequently she has seizures, pushing a button isn't hard, but if you have to do it every 3 minutes and have a seizure once a month, she's confronted with her epilepsy day in day out.
As suggested I would not just make a system, but contact her neurologist as well, look at legal
implications and perhaps get in contact with an E-support group as well.
Getting an official "medical approved" label for a device you want to make probably costs a factor 1000
more as the costs of components, design, programming and assembly. First goal is of course to help her, but I... would like to be a 100% certain a device like that won't result in a giant lawsuit from one of all parties involved.
Finding someone who also feels comfortable in a colder environment and would work side by side would imo be the best idea.
One thing that wonders me is how she... thinks of working alone and what the real danger of working
alone is in her case. I am fortunate to have all my seizures in bed. Some people with E indeed can't
work alone because a seizure might even kill them, but I also know others that have less severe seizures, avoid stuff like heavy machinery and think the occasional bump on the head is a very small price to live a normal life.