Heartbeat via SMS? | Thales IoT Developer Community
April 2, 2015 - 2:57pm, 5391 views
We offer traceable watches. These are worn by users incapable of asking for help when needed. The watches can be traced using a variety of communication methods. In the areas they are used SMS seems to be the most reliable way of communicating with them. However some ***** it isn't possible to get in touch with them (mobile network errors, no coverage, SIM database error or whatever). We have plattform to contact them and check if they are available, but that isn't really useful as they may be turned off for a reason and thus we wouldn't know if we should warn or not. Thus we are looking for a simple way that relatives or carers of the user can be notified if the watch is not available. Ideally some app that would send an SMS to the watch at certain ***** of the day and then start some audible alert if it has no reply within 10 minutes. Adding to the challenge the watch must receive a specific text in order to answer. Any ideas? Or any other smart way we can solve this?
Hello,
SMS is also not 100% reliable - there's no guarantee that it would be delivered and if the other party is not available it is up to the network message service centre when it will be retransmitted.
I assume that the platform is already using some data connection (TCP socket?) and it is not enough.
Maybe UDP would be suitable for 'heart beat'. Or the voice call would also be an option?
Do you plan to use a Gemalto module inside the watch or communicate it with the watch in some other way?
Best regards,
Bartłomiej
On the other hand SMS is the technology which requires the least signal quality and time to receive and transmit a message. Maybe CSD is an option?
Exactly, for such equipment the goal is to make it work in as large geographical areas as possible and then SMS is the best option.
I see that my question was unclear. It is not from the platform we want to test if the end equipment is on and working. It is from a smartphone independently from the platform. The system is built such that even if the platform fails functionality is distributed and near fully working. So it is a way to see if the end equipment itself is working. We also want to distribute this so that it can be set up on different smart phones for different end equipment.