Hi All,
We've used a few different approaches over the years, each configuration
had to suit the capabilities of the particular computer:
Panasonic Toughbook, CF18, CF19 - has a wake from sleep function that is
controlled via the serial port. We programmed a microprocessor to send
the wake up command if the user switch (which was also the scanning
input for EzKeys) was held for more than 5 seconds.
Panasonic Tablet computer CF-H2 - This had a BIOS option that woke it
from complete shutdown when power was placed on the DC input. We
programmed a microprocessor to withdraw power and then return it if the
user switch was held for more than 5 seconds. This triggered the start
up function, but had no effect if the unit was already going as it kept
running on the internal battery.
BIOS option on power detect. Some desktop computers and most systems
capable of running as a file server have settings in the BIOS to: (a)
return to the last state when power is applied, which is used to recover
from an unexpected power failure (b) start up when power is applied (c)
do nothing - wait for manual switch press. We have had users shut down
their computer using the normal method, and then press a switch
connected to a Power Box, Power Link or similar device to turn off the
power to the computer. With the BIOS set to start on power detection,
the computer will start when power is returned via the external mains
switching unit. Be wary using an access (scanning) switch to also
activate the switching unit, as every second toggle will unconditionally
turn off the computer! A nice approach would be to detect the lowered
power consumption when the computer is gracefully shut down, and use
this to reset the switching unit. The user switch could just be an 'on'
switch in this scenario.
And finally! Many clients are OK putting the computer into sleep mode
versus complete shutdown. From this mode the computer can be returned to
full operation using a variety of options including any key press, mouse
click.
Cheers,
James Dean
([log in to unmask])
Technical Solutions Australia P/L
109 Ferndale Road, Silvan Vic 3795
Australia
Ph 61 3 9737 9000
Fax 61 3 9737 9111
www.tecsol.com.au
-----Original Message-----
From: A discussion list for Assistive Technology professionals.
[mailto:[log in to unmask]] On Behalf Of Judge Simon (BARNSLEY
HOSPITAL NHS FOUNDATION TRUST)
Sent: Saturday, 11 January 2014 12:41 AM
To: [log in to unmask]
Subject: Re: Switch BootUp of PC/Laptop
Hi Geoff,
Thanks - Interesting! Hadn't seen that - that is 'only' waking the
computer from sleep (I guess, just sending a single keystroke), not off
though... I think the switch would also do this (as a mouse click)?
Cheers
Simon
-----Original Message-----
From: A discussion list for Assistive Technology professionals.
[mailto:[log in to unmask]] On Behalf Of Harbach Geoff
Sent: 10 January 2014 10:58
To: [log in to unmask]
Subject: Re: Switch BootUp of PC/Laptop
Warning: This message contains unverified links which may not be safe.
You should only click links if you are sure they are from a trusted
source. How about
http://electronicdesign.com/power/power-switch-ics-support-new-usb-wake-
capability
I remember a big green switch that was supposed to wake up the PC ?
ECO-Button, This might do what you want.
https://www.ecobutton.com/
Geoff Harbach
ACT
WMRC
________________________________
From: A discussion list for Assistive Technology professionals.
[mailto:[log in to unmask]] On Behalf Of Judge Simon (BARNSLEY
HOSPITAL NHS FOUNDATION TRUST)
Sent: 10 January 2014 10:00
To: [log in to unmask]
Subject: Switch BootUp of PC/Laptop
---
This message was sent from an email address external to NHSmail but
gives the appearance of being from an NHSmail (@nhs.net) address. The
recipient should verify the sender and content before acting upon
information contained within.
The identified sender is [log in to unmask]
---
Hi all,
Anyone found anything that achieves this?
I know it is possible using the 'Wake on Lan' functionality of
PCs/Laptops (where it exists) - by sending a 'magic packet'(!).
Only a couple of AAC devices do this (and I guess this is how they do
it) these days... I also think there was a student project that made
something to do this but, don't think it was released.
I just want a little dongle that I can plug into the network port, put
in parallel with the users' switch, and leave.
My latest reason for asking is a client who uses a headmouse with his
laptop but relies on care staff to start it up. He doesn't want/can't
leave it on all the time.
Any ideas/products I've missed?
Cheers,
Simon
Senior Clinical Scientist
Barnsley Assistive Technology Team - Engineering Independence
[log in to unmask]
01226 432159
Visit our website to find out what we do:
www.barnsleyhospital.nhs.uk/at <http://www.barnsleyhospital.nhs.uk/at>
Subscribe to our blog for occasional news and information:
https://barnsleyat.wordpress.com/ <https://barnsleyat.wordpress.com/>
(click +Follow and add your email address )
Follow us on twitter for news and other updates:
https://twitter.com/BarnsleyAT <https://twitter.com/BarnsleyAT>
Check out our latest training:
www.barnsleyhospital.nhs.uk/services/assistive-technology/training-cours
es/
<http://www.barnsleyhospital.nhs.uk/services/assistive-technology/traini
ng-courses/>
Write to us or visit us:
Dept of Medical Physics
Block 14
Barnsley District General Hospital Foundation Trust Gawber Road Barnsley
S75 2EP
************************************************************************
********************************************
This message may contain confidential information. If you are not the
intended recipient please inform the sender that you have received the
message in error before deleting it. Please do not disclose, copy or
distribute information in this e-mail or take any action in reliance on
its contents: to do so is strictly prohibited and may be unlawful.
Thank you for your co-operation.
NHSmail is the secure email and directory service available for all NHS
staff in England and Scotland NHSmail is approved for exchanging patient
data and other sensitive information with NHSmail and GSi recipients
NHSmail provides an email address for your career in the NHS and can be
accessed anywhere
************************************************************************
********************************************
************************************************************************
********************************************
This message may contain confidential information. If you are not the
intended recipient please inform the sender that you have received the
message in error before deleting it. Please do not disclose, copy or
distribute information in this e-mail or take any action in reliance on
its contents: to do so is strictly prohibited and may be unlawful.
Thank you for your co-operation.
NHSmail is the secure email and directory service available for all NHS
staff in England and Scotland NHSmail is approved for exchanging patient
data and other sensitive information with NHSmail and GSi recipients
NHSmail provides an email address for your career in the NHS and can be
accessed anywhere
************************************************************************
********************************************
|
