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Documentation by video and data surveillance Print E-mail
Saturday, 03 September 2016 19:45

ATP – ASFA Digital: ASFA DIGITAL System is a semicontinue ATP System, being its main fuction to achieve a continues supervision of the speed of the train by the information read in the beacons.
ATP System controls the speed on startup and gives an over speed protection, free track control, stop announcement control, pre-announcement stop control, detour gait detection, stop control signals detection, protected detour gait detection, nonprotected detour gait detection, temporal speed limitation and event records.
The ATP system is programmed with different speed curves predefined by the Administrator of Railway Infrastructures. The speed curve for each railway section is stablished depending on the different signals received from the beacons. With these parameters, the ATP System indicates the speed of the train in each point of the railway line by the request of different signals defined and the representation of them in the different displays. In case of dismatch, the system activates the brakes of the train.
A sensor receives the frequency of the beacons and an aperiodic amplifier that generates permanent frequency, and these signals are sent to the control unit.
The Speed is calculated using a tachometer attached to the axle or a speed sensor in phonic wheel.
All the information is displayed to the driver: speed of the last control, effectiveness, last information of the ATP, overspeed, etc. There are also an additional Buttons Panel which is used for recognition of signals by passing through the signals.

Event Recorder: Event Recorder (ER) is an onboard data recorder that records data about the operation of train controls and performance in response to those controls and other train control systems.. Data storage is provided by crashworthy non-volatile EEPROM or Flash Memory overwritten in a FIFO continuous loop. The data is intended for use in the investigation of accidents and incidents but is also used to monitor the general state of the train over a determined period of time. ER is also responsible to calculate the distance covered, the real speed of the train and each information to the driver.

Video Black Box: The term“black box” became commonly known in connection with airline crashes. These devices record very specific information about a vehicle’s operation for a period of time prior to a crash, which almost always plays a significant part in determining the cause of an accident. Over time, the black box concept was applied to other forms of transportation, obviously including rail transport . And parallel to this evolution it included a black box dedicated to recording video images from the cameras installed in the train, called Video Black Box.The analysis of the recorded images is crucial in determining the causes of any accident or incident occurring

Video Surveillance: New CCTV systems make rail travels are safe for passengers and goods thanks to our DVR on-board equipment which fits perfectly with any specific environment of rail transport. Take the control and manage the Digital Video Recorder for a proper storage of images and control of video images visualization taken from the cameras of the train.

 


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