geofencing
noun [ U ] uk/ˈdʒiː.əʊ.fen.sɪŋ/ us/ˈdʒiː.oʊ.fen.sɪŋ/
地理围栏，电子围篱
technology that allows the movements of a person, vehicle, etc. to be recorded or limited using satellite signals
Geofencing can be used to notify parents if a child leaves a designated area. 地理围栏可以在小孩子离开某个特定区域的时候提示父母注意。
Why did they not deploy anti-drone technology such as geofencing? 他们为什么不采用地理围栏这样的技术来对抗无人机？
- More examples
- With geofencing, an alert is sent if the vehicle is stolen.
- Geofencing enables employers to be alerted when a worker either enters or exits a particular area, and can monitor when and how long a worker stays at a specific location.
- There is also a geofencing application that alerts managers when a driver is off the scheduled route.
- The Senator proposed requiring drone manufacturers to build geofencing constraints into the system that would prevent the device from flying into protected airspace.