i am using SIM7600G GSM module to get the location information without using GPS in it. Anyone know about how to find the location from GPRS SIM itself?!
If such information could have been obtained from a device it wouldn't be the SIM but the GSM hardware. What you can hope to get is the cell ID of the serving cell, typically using AT commands, but this is not always true for all devices.
Depending on your country, you can find the position (longitude, latitude) of the site bearing that cell (there exist some databases). Depending on site location, urban zone or rural zone, you can approximate the position of the device within the coverage area of the cell from some hundreds meters (urban) to few tens of kilometers (rural zone where the network is usually much less dense), the theoretical maximum being 35Km...
The only way to have a precise position is by using the GPS
Related
I m using google distance matrix api to calculate estimated arrival time everytime the location is updated. However the result duration sometimes become longer as the api consider me at the other side of road and have to make a u turn... So the duration become longer
May i know how to fix this problem?
Actually i build the travel app which helps to track the user location but if there is no internet how can i store the location ?is there any trick to findout the location with GSM ?
Yes It is very much possible but gets useless to you.
You can get the approximate (lati & longi) position(if operator allows, I dont think they do) but what would you do because It wouldn't be possible to communicate back to traveler/user. At most you can do is send user SMS.
Mobile network is consisting of up of a number of adjacent radio cells, each of which is characterized by an identifier made up of four data items:
Cell ID
LAC, or Local Area Code
MCC, an acronym for Mobile Country Code
MNC, or Mobile Network Code, which obviously identifies the phone company itself
For this reason, once a cell name and coordinates(latitude and longitude) are known, and considering the maximum distance allowed between this cell and a phone before the phone connects to a new cell, it is possible to find out, approximately, the most distant position of the phone itself.
Its not possible to use GSM.GSM service providers can get the location details but they don't share those data to public.
How to implement this to show ALWAYS street name? Now i have only sometimes street name, but always City Name. How it works?
I'm using CLLocationManagerDelegate in my class, and i want to have:
Warsaw, Mickiewicza
But sometimes in the same location i'm getting only:
Warsaw
The geocoding will try to return its 'best guess' as to the user's location. This depends on factors such as the available accuracy, nearby landmarks and so on. If it is not returning a street name, perhaps the GPS accuracy is insufficient to estimate the nearest street, and there are no other landmarks nearby in the database. The GPS subsystem needs a few minutes to "warm up" and get an accurate lock.
Try waiting a short time and retrying the geocoding lookup. Note though that reverse geocoding is quite expensive, and the servers will often throttle your client if you make requests too frequently.
Location Awareness Programming Guide
My question is regarding the creation of regions for regionMonitoring in iOS 5. Can new regions be created based on user of the app's current location? Or do all regions need to be predefined by the developer in the applications binary?
I know you can have certain regions register based on the users current location, because the os puts a limit on the number of regions that the phone/app can be monitoring at one time, and you should only register the regions within close proximity to the users current location... but can a region (previously undefined) be created on the fly based on the users location?
use case example:
users app spins up coreLocation to get an accurate set of coordinates, once we have accurate coords, corelocation shuts down to save battery. An event needs to occur when the user leaves the area so we want to know when the user moves x units of distance. Can a region be created x units of distance around this users current location, so we can start monitoring for did exit region?
I put in a good amount of research but could not find an answer... and unfortunately I am not very familiar with regionMonitoring.
Thanks :)
Theoretically, You can monitor any region any time, these regions don't need to be predefined, you may use following code to create and monitor your required regions pragmatically,
CLLocationCoordinate2D center = CLLocationCoordinate2DMake(location.coordinate.latitude, location.coordinate.longitude);
CLRegion *region = [[CLRegion alloc] initCircularRegionWithCenter:center radius:50.0f identifier:identifier];
[self.locationManager startMonitoringForRegion:region desiredAccuracy:kCLLocationAccuracyBest];
PS: Region monitoring implementation is not as much useful as apple advertise, to my understanding it relies on cell change events (again to save the battery). I'm not happy even with the results of default Reminders app (location based reminders) both on iPhone 4 and 4s.
I have a bunch of computers in an area and I want to know positions of those computer. The place is wified so only thing through which they can be distinguished is by the IP address. Output would be coordinate of the computer given its IP address in context to the pre-defined origin.
So, this is kind of LPS (Local) as opposed to GPS.
I am seeing if Sun Spot can be used, but I have no idea how this can be accomplished.Any directions would be appreciated.
Thanks
Karan
You could use the access points (AP) BSSID (that is the MAC address) for tracking. If you don't have the data available, you can collect the data with Kismet. Then you can create a table that maps AP addresses to rooms.
If you have GPS reception in your rooms (for example if they have windows and are not in the inner of the building), you can also connect Kismet with gpsd to connect GPS coordinates with location. Yes, this is a 3D coordinate, if your GPS unit supports height data. Here is an example output:
<gps-point bssid="00:2F:F6:40:3C:C4" source="00:2F:6f:40:3C:C4"
time-sec="1314046060" time-usec="483219"
lat="23.144650" lon="78.417402" spd="0.000000" heading="179.680801"
fix="3" alt="541.559021"
signal_dbm="-26" noise_dbm="0"/>
For details on how to set up your GPS, see the documentation on Kismet homepage.