| 摘要 |
In some embodiments, techniques for processing an alert may include receiving a specification of a region, wherein the specification of the region includes a first location and a radius; creating an alert; associating information relating to the region with the alert; determining a first current location as a second location; determining that the second location is outside the region, based at least in part on the first location and the radius; determining a second current location as the third location; determining that the third location is within the region, based at least in part on the first location and the radius; and responsive to determining that the second location is outside the region and that the third location is within the region, sending an indication that the alert has been triggered, wherein the indication that the alert has been triggered includes an identifier associated with the alert. |
