In one embodiment, a method includes identifying, by an image detection tool, a tank within an image of a railway environment and identifying, by the image detection tool, a railroad track within the image of the railway environment. The method also includes determining, by the image detection tool, a distance between the tank and the railroad track and comparing, by the image detection tool, the distance between the tank and the railroad track to a predetermined threshold distance. The method further includes determining, by the image detection tool, that the tank presents a hazard to the railway environment in response to comparing the distance between the tank and the railroad track to the predetermined threshold distance.

A communication system includes communication units onboard a vehicle system. A first unit receives satellite positioning data and correction data based on phase measurements of satellite signals. A second unit receives the satellite positioning data. One or more processors determine a first geographical position of the first unit based on the position correction data and the satellite positioning data. The processors communicate the position correction data or a copy thereof to the second unit. The processors determine second geographical position data of the second unit based on the position correction data and the satellite positioning data. The one or more processors communicate the second geographical position data that is determined to the first communication unit.

Navigating a transportation network by receiving an equipment identifier, querying a section of interest database to obtain at least one section of interest associated, accessing geolocation data from one or more geolocation sensors, querying a one section of interest using geolocation data to identify a next section of interest. With geolocation data, calculating at least one of a time to a next section of interest or a distance to a next section of interest, and determining that a reduction in speed is required, where a reduced speed is an amount of speed by which the speed must be reduced in order for the equipment to achieve a target speed associated with the next section of interest, and providing an alert configured to escalate to the user interface.

Examples relate to digital context aware (DCA) data collection. In some examples, a DCA start location component is positioned at a first location along a travel route, and a DCA end location component is positioned at a second location along the travel route. In response to using a wireless interface to detect the DCA start location component, data collection of measurements by a sensor are initiated. In response to using the wireless interface to detect the DCA end location component, the data collection by the sensor is halted.

System and methods are provided for warning a worker of a rail vehicle, or an operator of the rail vehicle of the worker. The system includes a worker device, a vehicle device, and a central server. The devices and server operate on one or a combination of actual or simulated satellite navigational signals, and beacon signals to determine the position of the devices, to generate a warning. The position determination may prioritize beacon signals over satellite navigation signals. The position determination may involve correcting a calculated position based on a measured power level of the beacon signal received from the beacon transmitter, an elapsed time since a previous beacon signal was last received by the device from the beacon transmitter, an elapsed time since a previous satellite navigation signal was received by the device, or an accuracy of the position of the device based on the satellite navigation signal.

In order to locate points or lines of interest (A, B, C, D, A, B, C, D, 162, 163, 164) of a railway track (22), by means of a railway locating system (12), progressing on the railway track (22), a linear camera (26) pointing at the railway track (22) repeatedly acquires instantaneous linear optical data along an instantaneous measurement line (50), and an orientation device (52) of the railway locating system (12) repeatedly acquires orientation data of the railway locating system (12) with respect to a reference line (22A) of the railway track (22). By processing at least the instantaneous linear optical data, a potentially distorted bitmap image is constructed of a zone of the surface of the railway track (22), then points or lines of interest (A, B, C, D, A, B, C, D, 162, 163, 164) are identified in the potentially distorted bitmap image, before determining rectified coordinates of the points or lines of interest (A, B, C, D, A, B, C, D, 162, 163, 164), as a function of potentially distorted coordinates of the points or lines of interest (A, B, C, D, A, B, C, D, 162, 163, 164) in a reference system of the potentially distorted bitmap image and orientation data.

In order to position a set of one or more tools supported by a railway intervention vehicle progressing on a railway track (22), data is received characterising a curvilinear abscissa of a spatial indexation marker (56) of known signature, and a positioning of the spatial indexation marker (56) with respect to a reference line (122A, 122B, 222) of the railway track (22), and coordinates of points or lines of interest (A, B, C, D, A, B, C, D, 162, 163, 164) in a two-dimensional locating reference system linked to the spatial indexation marker (56) and to the reference line (122A, 122B, 222), one or more transposition matrix cameras (44) acquire a set of one or more transposition bitmap images in a spatial reference system of the transposition system (16), fixed with respect to the transposition chassis (45), and an odometer (28) acquires progression data of the transposition system with respect to the railway track (22). Then the spatial indexation marker (56) in the set of one or more transposition bitmap images is identified as a function of the progression data and curvilinear abscissa data, which makes it possible to determine data characteristic of the spatial indexation marker (56) and the reference line (122A, 122B, 222) in the spatial reference system of the transposition chassis, and to calculate transposed coordinates of the points or lines of interest (A, B, C, D, A, B, C, D, 162, 163, 164) in the spatial reference system of the transposition system (16), as a function of data characteristic of the spatial indexation marker (56) and the reference line (22A) in the spatial reference system of the transposition system, and coordinates of the points or lines of interest (A, B, C, D, A, B, C, D, 162, 163, 164) in the locating reference system.

A method for forming 3D image data representative of the subsurface of infrastructure located in the vicinity of a moving vehicle. The method includes: rotating a directional antenna, mounted to the moving vehicle, about an antenna rotation axis; performing, using the directional antenna whilst it is rotated about the antenna rotation axis, a plurality of collection cycles in which the directional antenna emits RF energy and receives reflected RF energy; collecting, during each of the plurality of collection cycles performed by the directional antenna.

In order to locate points or lines of interest A, B, C, D on a railway track 22, by means of a railway locating system 12 comprising a linear camera 26 and an odometer 28 progressing on the railway track 22 in a direction of progression 100, the odometer 28, repeatedly acquires instantaneous positioning data of the linear camera 26 with respect to the railway track 22 in the direction of progression 100, and the linear camera 26 pointing at the railway track 22 repeatedly acquires instantaneous linear optical data along an instantaneous measurement line 50. Then, by processing at least the instantaneous linear optical data and the instantaneous positioning data, a bitmap image is constructed of a zone of the surface of the railway track 22, and, in the bitmap image, at least one spatial indexing marker 56 of predetermined signature and its positioning relative to a reference rail 22A of the railway track 22 is identified. Points or lines of interest A, B, C, D are identified in the bitmap image, and the coordinates of the points or lines of interest are determined in a two-dimensional locating reference system O, x, y linked to the spatial indexing marker 56 and to the reference line 22A.

Systems and methods are provided for worker protection. A safety vest may be configured to support worker protection receiver function in worker protection systems. Components used in conjunction with the receiver functions may be integrated into the safety vest. The components may include one or more antennas, radio receiver (or transceiver) circuitry, integrated power supply source, indication components, and acknowledgement components. The safety vest may generate safety alerts in response to receiving signals from peer transmitter devices in the worker protection systems.