In a method for identifying a danger zone to be monitored at a grade crossing, the following are performed: at least one radar sensor is situated at the danger zone; object trajectories from sequences over time of object positions of respective objects moving through the danger zone are ascertained by the radar sensor; the position of at least one traffic path is identified with the aid of an accumulation of object trajectories; the positions of barrier straight lines are ascertained with the aid of radar reflections of the closed barriers; and the danger zone is determined by linking information on the identified position of the at least one traffic path with information on the ascertained position of the barrier straight lines.

In a method for identifying a danger zone to be monitored at a grade crossing, the following are performed: at least one radar sensor is situated at the danger zone; object trajectories from sequences over time of object positions of respective objects moving through the danger zone are ascertained by the radar sensor; the position of at least one traffic path is identified with the aid of an accumulation of object trajectories; the positions of barrier straight lines are ascertained with the aid of radar reflections of the closed barriers; and the danger zone is determined by linking information on the identified position of the at least one traffic path with information on the ascertained position of the barrier straight lines.

The invention comprises: a light-transmission-side lens 12 that shapes a laser beam L emitted from a laser light source 11 into a line shape extending along a horizontal direction X; a scanner 13 that projects the line-shaped laser beam L while scanning the same in a vertical direction Y of a measurement-target area A; a light-reception-side lens 16 that receives reflected light R reflected from the measurement-target area A; a light reception line sensor 18 including a plurality of light reception cells lined up along the horizontal direction X; a light-reception-side optical system 17 that gathers the reflected light R received by the light-reception-side lens 16 toward the light reception line sensor 18, and in which the light-gathering ratio in the vertical direction Y is set so as to be greater than the light-gathering ratio in the horizontal direction X; and an information generation unit 21 that generates three-dimensional information of the measurement-target area A on the basis of a reception signal outputted by the light reception line sensor 18.

The invention comprises: a light-transmission-side lens 12 that shapes a laser beam L emitted from a laser light source 11 into a line shape extending along a horizontal direction X; a scanner 13 that projects the line-shaped laser beam L while scanning the same in a vertical direction Y of a measurement-target area A; a light-reception-side lens 16 that receives reflected light R reflected from the measurement-target area A; a light reception line sensor 18 including a plurality of light reception cells lined up along the horizontal direction X; a light-reception-side optical system 17 that gathers the reflected light R received by the light-reception-side lens 16 toward the light reception line sensor 18, and in which the light-gathering ratio in the vertical direction Y is set so as to be greater than the light-gathering ratio in the horizontal direction X; and an information generation unit 21 that generates three-dimensional information of the measurement-target area A on the basis of a reception signal outputted by the light reception line sensor 18.

A method and a structure for an Autonomous Train Control System (ATCS) are disclosed, and are based on a plurality of autonomous train control elements that operate independent of each other. An autonomous train control element operates within an allocated track space, and based on predefined rules. Further, autonomous train control elements are paired together to exchange operational data. Pursuant to the predefined rules, an autonomous train control element acquires needed track space from a paired element, and relinquishes track space that is not required for its autonomous operation to a paired element. Further, an autonomous train control element is assigned a priority level with respect to the acquisition/relinquishment of track space.

A vehicle safety railroad crossing system comprising a system for preventing collisions between trains and motor vehicles at railroad crossings. The vehicle safety railroad crossing system functions to alert the train's engineer and brakeman of the vehicle ahead obstructing the tracks, and automatically apply the train's brakes to prevent a collision.

A vehicle safety railroad crossing system comprising a system for preventing collisions between trains and motor vehicles at railroad crossings. The vehicle safety railroad crossing system functions to alert the train's engineer and brakeman of the vehicle ahead obstructing the tracks, and automatically apply the train's brakes to prevent a collision.

A circuit arrangement for revealing light signal errors, in particular for railway safety systems, includes an electronic signal generator, which can be disconnected in a reversible manner in the event of an error, and a control part, configured for incandescent lamps, for controlling and monitoring the signal generator. The device for revealing errors includes an error differentiator between the line-related interference voltage and error of the signal generator. The reliability of the error differentiation is improved and rendered independent of capacitive intermediate energy storage devices, in that the signal generator is connected to a resistance arrangement such that the signal generator voltage is greater, in high-resistance signal generators, than an interference voltage.

A method and a structure for an Autonomous Train Control System (ATCS) are disclosed, and are based on a plurality of autonomous train control elements that operate independent of each other. An autonomous train control element operates within an allocated track space, and based on predefined rules. Further, autonomous train control elements are paired together to exchange operational data. Pursuant to the predefined rules, an autonomous train control element acquires needed track space from a paired element, and relinquishes track space that is not required for its autonomous operation to a paired element. Further, an autonomous train control element is assigned a priority level with respect to the acquisition/relinquishment of track space.

Provided is a monitoring system configured such that, even when there is a deviation of a shooting region of a camera, if the deviation is within an acceptable level, an accurate vehicle detection using a recognition model can be performed without readjusting parameters or re-training the model. Based on an image of a no-entry zone and a platform zone, a processor performs a first operation for detecting a person in the no-entry zone and a second operation for detecting a vehicle in the no-entry zone; and based on detection results, determines whether an alert needs to be issued. When there is a deviation of the shooting region of a camera, the processor performs a conversion operation for converting an image of a current shooting region to an image that would be captured by the camera with an original shooting region and uses the converted image for the two detection operations.