If I were to create an emergency alert app, I'd make something that stayed alive and was always verifying the existence of a central entity - web site, server etc. and the fail safe is that the user would be alerted when out of range. An 'always on' executable that would have to be carefully crafted to not take up too much battery energy, yet ping headquarters for a change every few seconds, then go into alert mode when the latest check reveals the emergency.
It would be part of the routine of the wearer (fireman, whatever) to 'check in' with the server and verify correct operation, then just keep it running all day. The data would be minimal and UDP packets have incredibly low latency - even a voice alert could be sent real time - VOIP. I have no idea how the power usage would be handled in that case - the continuous pinging could drain the battery too quickly depending on how it's done. But there is the challenge! -- Stephen Barncard - Sebastopol Ca. USA - mixstream.org On Mon, Aug 14, 2017 at 3:25 PM, William Prothero via use-livecode < use-livecode@lists.runrev.com> wrote: > Thanks. Looks interesting. It also looks like I'd have to learn a lot to > get it implemented. I’ve been using cURL to access an API for water meter > readings, and it’s painful, but would probably get easier. > > This looks like a good provider, tho. > Best, > Bill P > > > On Aug 14, 2017, at 1:42 PM, Simon Smith via use-livecode < > use-livecode@lists.runrev.com> wrote: > > > > I would look at push notifications. onesignal.com looks quiet good, just > > not had a chance to play with it yet. > > > > I have found that SMS messages are too unreliable when it comes to > > emergency notifications, sometimes they come through, sometimes they > don't > > and sometimes they come through an hour or so later. > > > > Simon > > > > > > Carpe diem > > > > *Simon Smith* > > m. +27 83 306 7862 > > > > On Mon, Aug 14, 2017 at 9:19 PM, ELS prothero via use-livecode < > > use-livecode@lists.runrev.com> wrote: > > > >> I’m curious. Has anybody done much with push notifications on mobile? > >> There is a lesson on the livecode web site which is quite detailed, but > >> leaves out the server side of the equation. I have been thinking about > an > >> emergency alert app and am exploring how difficult it would be to > implement > >> various communication technologies. Texts seem pretty straighforward, > but I > >> was thinking that push notifications might get more attention. > >> > >> The goal is to get the information to the recipient’s brain. It can get > to > >> the device, but unless the last (weak link) is traversed, the alert is > >> ineffective. The target time for this is 15 minutes. > >> > >> I’ve Googled the heck out of these topics and there are really nice > >> expensive services that can do the job, but we don’t want to pay the > high > >> fees. Others are marketing oriented, not optimized for emergency > services. > >> A custom app could be ideal, especially with increasing wildfire > activity > >> worldwide. > >> > >> Ideas and info? > >> Best, > >> Bill > >> > >> William Prothero, PhD > >> Professor Emeritus > >> University of California, Santa Barbara > >> http://earthlearningsolutions.org > >> > >> _______________________________________________ > >> use-livecode mailing list > >> use-livecode@lists.runrev.com > >> Please visit this url to subscribe, unsubscribe and manage your > >> subscription preferences: > >> http://lists.runrev.com/mailman/listinfo/use-livecode > > _______________________________________________ > > use-livecode mailing list > > use-livecode@lists.runrev.com > > Please visit this url to subscribe, unsubscribe and manage your > subscription preferences: > > http://lists.runrev.com/mailman/listinfo/use-livecode > > > _______________________________________________ > use-livecode mailing list > use-livecode@lists.runrev.com > Please visit this url to subscribe, unsubscribe and manage your > subscription preferences: > http://lists.runrev.com/mailman/listinfo/use-livecode > _______________________________________________ use-livecode mailing list use-livecode@lists.runrev.com Please visit this url to subscribe, unsubscribe and manage your subscription preferences: http://lists.runrev.com/mailman/listinfo/use-livecode
