虚块信令

虚块信令 ​is a safety-critical SIL 4, CENELEC-compliant product that provides the safety-critical delivery of Mandatory Directives (movement authorities and restrictions) to trains in electronic-only mode (elimination of read and repeat).

除了, 虚块信令 ​ensures vital overlap protection of electronic and verbal authorities in Track Warrant Control (TWC) operation. Train-control solutions based on IVOC require minimal wayside components installation, reducing the CAPEX and OPEX cost for signaling of new railway lines or existing ones to be rehabilitated.

虚块信令 ​provides the following key functions:

• Electronic-only delivery of movement authorities and restrictions to trains in electronic-only mode, 提供无纸化出租车
• Restriction mapping to movement authorities for trains in both CTC and TWC territories
• Movement authority overlap validation
• Will permit overlaps for contingent authorities when marked as contingent
• Authority-verbiage validation to ensure verbal authorities known to the crew is what IVOC is protecting
• Alternate protection to ensure accidental removal of a movement authority leaving the entity unprotected
• Enter Main Track (EMT) overlap protection for hand-thrown switches
• Pass Signal at Stop (PSS) overlap protection if another vehicle is already authorized for that section of track
• Crew-initiated rollup and release to allow crew to rollup movement authority in conjunction with TMC to allow IVOC or dispatcher to authorize next train for that section of track
• PIN protection for verbal authorities giving ownership of movement authority to crew as to when it can be released
• Improved train location reporting in dark territory
• Improved authority-violation reporting by reducing bandwidth, only sending report to CAD and violated train if train violation overlaps that train’s movement authority

未来的功能:

• Remote control of switches in dark territory
• Unmonitored switch status determined by handling reports and onboard traversal reporting
• Automatic rollup of movement authority with inclusion of GPS-enabled End of Train (EOT) device
• Dynamic authority where movement authority will be sent to a train as the leading train releases track
• Restricted speed collision avoidance in CTC territory