Hello, I'm in the middle of a project where I am using a GPS and a puls sensor and want to have geofencing implemented in the project so under certain conditions the GPS should activate.
I would like to hear if it is possible to set a geofence up with only the GPS and puls sensor and libraries or if I need other components?.
if I need other components and need some specific libraries I would really appreciate if you would send me a link for them or just tell me the name of them.
The accuracy of a standard GPS is something like 10 meters. What is the magnitude of the area You intend to wirk on?
theshadows:
I would like to hear if it is possible to set a geofence up with only the GPS and puls sensor and libraries or if I need other components?.
Yes. GPS will identify your location. Your calculations will tell you if you are on the correct side of the geofence or not.
What is a 'puls' sensor? Is it a 'pulse' sensor as in heartbeat sensing? What would that have to do with a geofence?
The TinyGPS++ library has functions to calculate distance from a known set of co-ordinates, so it would be easy enough the set a limit of say 1km from home as a geofence.
GPSs are not so good at short distance type stuff, a planning limit of circa 10m accuracy is reasonable, sometimes the accuracy will be less, sometimes more.
Its a good idea to describe what the project actually is, saves everyone suggestion 'sollutions' that are not practical.
our project is building a tracker for people with dementia and other diseases the puls sensor comes in the picture as where if their puls is high or low it should be able to say there is a problem here and activate the GPS so that someone within the medical field could help the people in need at that time the area we plan for the geofence is the size of a nursing home
It's a really praiseworthy project. I see the good in it. However Arduinos are not certified for life critical equipment. I Your project is made to be use privately for one person I would do it myself. Making a pruduct for commercial use I strongly doubt it will be certified.
Anyway, go head. Making it a prototype can't be wrong. Making it commercial is another question.
The accurazy of a common GPS ought to be good enough.
Regularly reporting the coordinates of a person migh violate his/hers integrety. That's fencing. Reporting the position in case of an alarm is a different story I think.
One key is the range of communication. From how far away can an alarm reach the receiver.
Sensors will not be much of a problem as I can imagine.
yea the Arduino is only for the prototype and cause that's what we have available at the time we will explain in the report what can be done better/differently
and yea there is a lot of law and ethics of a person in it which we are reading up on
You know the essentials, the importance of things. Good! I'll monitor Your project.
I've used the tinyGps++ library and a NEO-6M GPS that I'm satisfied with. Note that a GPS will be way less accurate in environments like below the branches and leeves of whet tries. In the open air, lots of free sky, they work well.
Can you spell pulse?
Paul
theshadows:
we plan for the geofence is the size of a nursing home
Do remember that GPSs will only work relaibly outdoors.
So the Geofence could work OK, assuming the area is not heavily built up or surrounded by trees, for sensing when say a perimeter outdoors is exceeeded.
Paul_KD7HB:
Can you spell pulse?Paul
Oh, please don't become the grammar police. You will have a never ending job on this forum.
If you are thinking of building a saleable item - have a look at what is commercially available ; mobile phones for example can be used to locate people as could low cost animal tracking devices .