What is geofence?

1) What is geofence?

According to Wikipedia, geofence (also called geo-fencing),"Geo-fenceIs a virtual perimeter for a real-world geographic area ."

A geo-fence cocould be dynamically generated-as in a radius around a store or point location. or a geo-fence can be a predefined set of boundaries, like school attendance zones or neighborhood boundaries. custom-digitized geofences are also in use.

 

2) what can geofence do?

Geofencing, used with child location services, can sort y parents when a child leaves a designated area.

When a child leaves the preset range, it can trigger an event, such as sending a text message or sending an email alarm.

These geo-fences when crossed by an equipped vehicle or person can trigger a warning to the user or operator via SMS or email.

 

3) How to Implement

A)

One way is to use a different SDK, such as the location-Labs SDK, including the Android and IOS versions:

Http://geofence.locationlabs.com/code.html

 

B)

One way is to implement the corresponding functions by yourself.

Ios5 has built-in support for geofencinig,

For exampleStartmonitoringforregion: desiredaccuracy:Method of yourCllocationmanagerObject.

Android callsRequestlocationupdatesAnd other functions.

 

Self-implementation is not complicated.

 

4) References

For more geolocation-related APIs, see: 5 geolocation APIs you may not have heard