Abstract: A method is provided that can include activating at least two wireless communication channels in parallel, between a first wireless transceiver and a second wireless transceiver. Each of the at least two wireless communication channels can operate at a different radio carrier frequency, and the first wireless transceiver may be part of a first vehicle. The method can also include transmitting, by the first wireless transceiver, common information in parallel on the at least two wireless communication channels to the second wireless transceiver and deactivating the at least two wireless communication channels.

Abstract: A computer-implemented method is provided that includes obtaining a first secret and a first public key, and obtaining a second secret a second public key. The method may also include authenticating the first public key of the first vehicle based on a first private key associated with the first vehicle, and authenticating the second public key of the second vehicle based on a second private key associated with the second vehicle. The method may also include preventing a man-in-the-middle attack, by securing at least one of a first vehicle-to-central office communication, a central office-to-first vehicle communication, or a first vehicle-to-second vehicle, wherein the first vehicle-to-central office communication and the central office-to-first vehicle communication are authenticated based on a determined private key associated with a respective first vehicle on-board computer, and sending a message, with the central office server, to a vehicle associated with a conditional movement authority.

Abstract: A control system and a related method includes determining an access state of a vehicle and communicating a locking command message from an off-board control system to remotely change the access state of the vehicle between a locked state and an unlocked state. In the locked state, an operator is unable to one or more of access a location of the vehicle, access an area internal to the vehicle, change a power setting of a component of the vehicle, or engage a propulsion system of the vehicle. The operator onboard the vehicle may be prohibited from changing the access state from the locked state to the unlocked state without assistance from the off-board control system, but the operator may be allowed to change the access state from the unlocked state to the locked state without assistance from the off-board control system.

Abstract: A control system and a related method includes determining an access state of a vehicle and communicating a locking command message from an off-board control system to remotely change the access state of the vehicle between a locked state and an unlocked state. In the locked state, an operator is unable to one or more of access a location of the vehicle, access an area internal to the vehicle, change a power setting of a component of the vehicle, or engage a propulsion system of the vehicle. The operator onboard the vehicle may be prohibited from changing the access state from the locked state to the unlocked state without assistance from the off-board control system, but the operator may be allowed to change the access state from the unlocked state to the locked state without assistance from the off-board control system.

Abstract: A computer-implemented method is provided that includes obtaining a first secret and a first public key, and obtaining a second secret a second public key. The method may also include authenticating the first public key of the first vehicle based on a first private key associated with the first vehicle, and authenticating the second public key of the second vehicle based on a second private key associated with the second vehicle. The method may also include preventing a man-in-the-middle attack, by securing at least one of a first vehicle-to-central office communication, a central office-to-first vehicle communication, or a first vehicle-to-second vehicle, wherein the first vehicle-to-central office communication and the central office-to-first vehicle communication are authenticated based on a determined private key associated with a respective first vehicle on-board computer, and sending a message, with the central office server, to a vehicle associated with a conditional movement authority.