Abstract: A computer-implemented method comprises: receiving, at a first one of the first electronic devices, a first wireless signal transmitted by a second electronic device attached to a vehicle; transmitting, from the first electronic device, a second wireless signal, wherein the second electronic device determines a location of the vehicle along the transportation pathway according to the second wireless signal; receiving, at the first electronic device, a third wireless signal transmitted by a second electronic device, wherein the third wireless signal identifies the determined location of the vehicle; and transmitting, from the first electronic device, a fourth wireless signal, wherein the fourth wireless signal identifies the determined location of the vehicle, wherein other ones of the first electronic devices wirelessly relay fifth wireless signals along the transportation pathway, wherein the fifth wireless signals identify the determined location of the vehicle.

Abstract: In general, one aspect disclosed features a computer-implemented method comprising: determining whether Global Positioning System (GPS) location data are available; responsive to determining the GPS location data are available, causing transmission of a first message in National Marine Electronics Association (NMEA) format, the first message comprising the GPS location data; and responsive to determining the GPS location data are not available: determining a location based on non-GPS location data, generating a second message in NMEA format, the second message representing the determined location, and transmitting the second message.

Abstract: Enhanced transit location systems and methods are provided. A method comprises receiving, into a vehicle radio located on a vehicle traveling along a roadway, signals transmitted by wayside radios located along the roadway; and determining a location of the vehicle along the roadway based on the received signals.

Abstract: A computer-implemented method comprises: receiving, at a first one of the first electronic devices, a first wireless signal transmitted by a second electronic device attached to a vehicle; transmitting, from the first electronic device, a second wireless signal, wherein the second electronic device determines a location of the vehicle along the transportation pathway according to the second wireless signal; receiving, at the first electronic device, a third wireless signal transmitted by a second electronic device, wherein the third wireless signal identifies the determined location of the vehicle; and transmitting, from the first electronic device, a fourth wireless signal, wherein the fourth wireless signal identifies the determined location of the vehicle, wherein other ones of the first electronic devices wirelessly relay fifth wireless signals along the transportation pathway, wherein the fifth wireless signals identify the determined location of the vehicle.

Abstract: In general, one aspect disclosed features a system, comprising: a hardware processor; and a non-transitory machine-readable storage medium encoded with instructions executable by the hardware processor to perform operations comprising: identifying a seat in which a passenger is seated in a conveyance having multiple seats based on wireless signals exchanged with a device of a passenger; determining a payment status of the ticket of the passenger using the wireless signals; and generating a map of the conveyance indicating the seat in which the passenger is seated and the payment status of the ticket of the passenger.

Abstract: A computer-implemented method comprises: receiving, at a first one of the first electronic devices, a first wireless signal transmitted by a second electronic device attached to a vehicle; transmitting, from the first electronic device, a second wireless signal, wherein the second electronic device determines a location of the vehicle along the transportation pathway according to the second wireless signal; receiving, at the first electronic device, a third wireless signal transmitted by a second electronic device, wherein the third wireless signal identifies the determined location of the vehicle; and transmitting, from the first electronic device, a fourth wireless signal, wherein the fourth wireless signal identifies the determined location of the vehicle, wherein other ones of the first electronic devices wirelessly relay fifth wireless signals along the transportation pathway, wherein the fifth wireless signals identify the determined location of the vehicle.

Abstract: In general, one aspect disclosed features a system, comprising: a hardware processor; and a non-transitory machine-readable storage medium encoded with instructions executable by the hardware processor to perform operations comprising: identifying a seat in which a passenger is seated in a conveyance having multiple seats based on wireless signals exchanged with a device of a passenger; determining a payment status of the ticket of the passenger using the wireless signals; and generating a map of the conveyance indicating the seat in which the passenger is seated and the payment status of the ticket of the passenger.

Abstract: Transit location systems and methods using LIDAR are provided. In some embodiments, a computer-implemented method comprises receiving a 3D image captured from a vehicle on a pathway; transforming the 3D image into a first 2D image; and determining a location of the vehicle along the pathway, comprising: comparing the first 2D image to a plurality of second 2D images each captured at a respective known location along the pathway, selecting one or more of the second 2D images based on the comparing, and determining the location of the vehicle along the pathway based on the known location where the selected one or more of the second 2D images was captured. The 3D image may be captured by capturing LIDAR data with a LIDAR unit mounted on the vehicle.

Abstract: Transit location systems and methods using LIDAR are provided. In some embodiments, a computer-implemented method comprises receiving a 3D image captured from a vehicle on a pathway; transforming the 3D image into a first 2D image; and determining a location of the vehicle along the pathway, comprising: comparing the first 2D image to a plurality of second 2D images each captured at a respective known location along the pathway, selecting one or more of the second 2D images based on the comparing, and determining the location of the vehicle along the pathway based on the known location where the selected one or more of the second 2D images was captured. The 3D image may be captured by capturing LIDAR data with a LIDAR unit mounted on the vehicle.

Abstract: In general, one aspect disclosed features a system, comprising: a hardware processor; and a non-transitory machine-readable storage medium encoded with instructions executable by the hardware processor to perform operations comprising: identifying a seat in which a passenger is seated in a conveyance having multiple seats based on wireless signals exchanged with a device of a passenger; determining a payment status of the ticket of the passenger using the wireless signals; and generating a map of the conveyance indicating the seat in which the passenger is seated and the payment status of the ticket of the passenger.

Abstract: In general, one aspect disclosed features a computer-implemented method comprising: determining whether Global Positioning System (GPS) location data are available; responsive to determining the GPS location data are available, causing transmission of a first message in National Marine Electronics Association (NMEA) format, the first message comprising the GPS location data; and responsive to determining the GPS location data are not available: determining a location based on non-GPS location data, generating a second message in NMEA format, the second message representing the determined location, and transmitting the second message.

Abstract: In general, one aspect disclosed features an apparatus comprising: an ultra-wideband (UWB) radio configured to transmit a UWB radio signal in a frequency band; a detect circuit configured to monitor the frequency band for the presence of a second radio signal in the frequency band; and a controller configured to cause the UWB radio to transmit the UWB signal responsive to the detect circuit detecting the presence of the second radio signal in the frequency band.

Abstract: Transit location systems and methods using LIDAR are provided. In some embodiments, a computer-implemented method comprises receiving a 3D image captured from a vehicle on a pathway; transforming the 3D image into a first 2D image; and determining a location of the vehicle along the pathway, comprising: comparing the first 2D image to a plurality of second 2D images each captured at a respective known location along the pathway, selecting one or more of the second 2D images based on the comparing, and determining the location of the vehicle along the pathway based on the known location where the selected one or more of the second 2D images was captured. The 3D image may be captured by capturing LIDAR data with a LIDAR unit mounted on the vehicle.

Abstract: Enhanced transit location systems and methods are provided. A method comprises receiving, into a vehicle radio located on a vehicle traveling along a roadway, signals transmitted by wayside radios located along the roadway; and determining a location of the vehicle along the roadway based on the received signals.

Abstract: A computer-implemented method comprises: receiving, at a first one of the first electronic devices, a first wireless signal transmitted by a second electronic device attached to a vehicle; transmitting, from the first electronic device, a second wireless signal, wherein the second electronic device determines a location of the vehicle along the transportation pathway according to the second wireless signal; receiving, at the first electronic device, a third wireless signal transmitted by a second electronic device, wherein the third wireless signal identifies the determined location of the vehicle; and transmitting, from the first electronic device, a fourth wireless signal, wherein the fourth wireless signal identifies the determined location of the vehicle, wherein other ones of the first electronic devices wirelessly relay fifth wireless signals along the transportation pathway, wherein the fifth wireless signals identify the determined location of the vehicle.