CPC B61L 25/025 (2013.01) [B61L 15/0018 (2013.01); B61L 15/0027 (2013.01); B61L 27/70 (2022.01); G01S 5/01 (2020.05); G01S 5/017 (2020.05); G01S 19/14 (2013.01); G01S 19/34 (2013.01); G01S 19/50 (2013.01); H04W 4/42 (2018.02); H04W 52/0274 (2013.01); B61L 2205/04 (2013.01); G01S 19/071 (2019.08); G01S 19/396 (2019.08); G01S 19/426 (2013.01); Y02D 30/70 (2020.08)] | 60 Claims |
1. An apparatus for locating a mobile railway asset, the apparatus comprising:
a limited power source;
global navigation satellite system (GNSS) circuitry configured to utilize electrical power from the limited power source to receive GNSS data from satellites of a GNSS;
a controller operatively coupled to the limited power source and the GNSS circuitry, wherein the controller has:
a power saving mode wherein the controller inhibits the GNSS circuitry from receiving GNSS data;
a standard accuracy mode wherein the controller permits the GNSS circuitry to receive GNSS data for a first time period; and
a higher accuracy mode wherein the controller permits the GNSS circuitry to receive GNSS data for a second time period longer than the first time period;
the controller configured to enter the higher accuracy mode and permit the GNSS circuitry to receive GNSS data for the second time period in response to a determination of a mobile railway asset event;
communication circuitry operatively coupled to the controller; and
the controller configured to, in response to the determination of the mobile railway asset event, control the communication circuitry to communicate to a remote computing device data indicative of a location of the mobile railway asset based at least in part on the GNSS data received during the second time period of the higher accuracy mode.
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