Multi Rail Lock

Multi-section axle counting and secure data transmission block

MULTI RAIL LOCK is an innovative Multi-section Axle Counting and Secure Data Transmission Block developed by ECM. The system, based on a WAN via FO or S-HDSL network, enables the central unit of the system (ACU) to check the status of the entire section.

MULTI RAIL LOCK is an innovative Multi-section Axle Counting and Secure Data Transmission Block developed by ECM. The system, based on a WAN via FO or S-HDSL network, enables the central unit of the system (ACU) to check the status of the entire section.The versatility of the vital I/O switches on the central and peripheral units (IOMANFS) ensure simultaneous transmission of block reports (in addition to the actuation of the controls) from station to station or from station to location case or any other I/O status using the WAN by means of secure data transmission, with obvious benefits of availability and lower cost of installation and maintenance. The count points (ACP) located along the line process and store the transit information. The configurability of the system software gives it considerable flexibility and makes it adaptable to diverse needs.

Multi rail lock: l’innovativo sistema Blocco conta assi multisezione e Trasmissione dati in sicurezza sviluppato da ECM

Multi Rail Lock®was developed to find space in existing and established ACEI facilities as well as to be integrated into innovative and futuristic situations, such as the new generation ACC systems (HMR9®) by ECM.

The use of an Ethernet ring implemented on copper (S-HDSL) or optical fiber to connect the station unit (Area Control Unit) to the various digital pedals installed in-line (WDD) and robust data communication protocols allow the system a considerable increase in performance in terms of availability; moreover, along these lines the system can handle functional redundancy on its peripheral points.

The Axle Counter Block system is fully reconfigurable and upgradeable by remote and has a mechanism for integrated diagnostics through which it is possible to use all the information regarding the system itself. Use of hardware platforms that are already well established and tested by ECM ensures the safety requirements of the system, developed in accordance with CENELEC standards EN50126, EN50128, EN50129 with an integrity level of SIL4.

The product offers the following functions:

  • Determination of the occupancy status of one or more sections (Multi-section) on a track section;
  • Determination of the occupancy state of one or more sections of a line;
  • Block relay control;
  • Managing release keys, conditioned and unconditioned;
  • The SDT (Secure Data Transmission) enables the transfer of the block reports or in general the status of the relay contacts; this function can be implemented in both the presence and absence of the ACBS functionalities;
  • Auto-reconfiguration function in multi-section applications in the presence of a fault;
  • Self-release functions in the presence of incorrect counting;
  • Diagnostic tools with synoptic for operative representation of the MMI;
  • Integrated diagnostics supervision;
  • Redundancy;
  • ETH interface of communication between subsystems on copper (S-HDSL) or optical fiber.

The ACBS-M/TDS system is composed of the following devices:

  • UCA (Area Control Unit;
  • IOMANFS (In/Out Manager Fail Safe);
  • PCA (Axle Count Point);
  • WAN (Wide Area Network).

UCA (Area Control Unit)

The UCA is a fail-safe system that performs the following functions:

  • Management of WAN and communication with PCA and IOMANFS;
  • Reconfiguration of section and self-release function;
  • Management (acquisition/actuation) of block reports;
  • Acquisition and management of the release keys;
  • Management of the synoptic;
  • Management of diagnostics and the relative historical recording of events.
Multi Rail Lock: UCA

Through the relay interface with the station apparatus, the ACU communicates the status of occupancy of the section, determined according to the information received by the PCA. UCA also determines and controls the state of occupancy of block relays (if any) placed along the line; finally, it manages the artificial release commands of the section.

Dimension Rack 19” 3U
Weight 6.5kg
Power Consumption 80W from 90 to 240Vac
Interfaces

Two ETH via FO or S-HDSL sockets for direct WAN management

Eight auxiliary ETH sockets

16 vital outputs

32 vital inputs

External GPS

Integrated Diagnostics Display

Working temperature -25°C / +70° C
Storage Temperature -40°C / +70° C
Installation Environment A5 Conforms to IS402

IOMANFS (I/O Manager Fail-Safe)

The IOMANFS is a fail-safe system installed in a sentry box or in the station that performs the following functions:

  • Piloting of the block relays of the intermediate post or nearby station (according to the instructions received by the ACU via the communication network)
  • Actuation and acquisition of the block relationships between station and station or between station and ILP (Intermediate Block Post)
  • Actuation and acquisition of the relay statuses for general purposes
  • Acquisition of the release keys.
Dimension Rack 19” 3U
Weight 6kg
Power Consumption 60W from 90 to 240Vac
Interfaces

Two FO-type ETH or S-HDSL sockets for direct WAN management

Eight auxiliary ETH sockets

32 vital outputs

64 vital inputs

Working temperature -25°C / +70° C
Storage Temperature -40°C / +70° C
Installation Environment A5 Conforms to IS402

PCA (Axle Count Point)

The ACP is a fail-safe device that interfaces with the WDDs and with the WAN.

  • The PCA manages 1/2 WDD for counting the axles; it acquires and processes the data supplied by the pedals in order to determine the axle-in-transit event, its direction and speed.
  • Store and send information collected by the WDD to UCA through WAN.
  • Store and send diagnostic and vitality information to UCA.
Multi Rail Lock: UCA

The PCA can detect the number of axles transited on WDD, their direction and instantaneous speed.

The ACP is able to manage a simple count point (single WDD) or redundant count point (two WDD that perform the same function), or two count points (WDD that perform different functions). It can be installed along the line in the vicinity of the track (distance ≥ 1m) and is able to manage 2 WDD anchored to the rail placed at a limit distance of 30m.

Dimension h=450mm 400x260
Weight 13kg
Power Consumption 20W 48Vdc - 150Vac (other supply voltages on demand, integrated isolation transformer)
Interfaces

Two remotable WDD from 1 to 30m

Two FO-type ETH or S-HDSL sockets for direct WAN management

IN/OUT power supply

Splice for integrated optics junctions

IP 65
Working temperature from -25°C to +70° C
Storage Temperature from -40°C to +70° C
Installation Environment A6 Conforms to IS402

WDD (Wheel Double Detector)

The WDD is a proximity sensor of exceptional compactness and reliability consisting of a double transducer which exploits the principle of the variation of the electromagnetic field induced by the passage of the train wheel flange.

The dual sensor has a high degree of immunity to electromagnetic interference, ensuring detection of the direction and speed of the rolling stock in addition to counting the number of axles transited up to a speed of approximately 360km/h (compatible with High Speed environment).

Multi Rail Lock: WDD

The sensor is controlled by a microprocessor with 2oo2 architecture resident on the ACP which, with it’s advanced diagnostics system, is capable of detecting detachment from the rail or incorrect positioning and operative abnormalities of the rail.

The installation is much easier thanks to the use of a spacer (plastic template) that ensures correct positioning of the WDD with ease, rapidity and precision; it is positioned at a distance of 45mm from the rolling plane.

The anchoring mechanism provides a mechanical clamp which is fastened to the rail foot (UNI60, UNI50, FS46) without the need to drill the rail shank.

The sampling by the ACP of the status of the two sensors in the WDD and the real-time processing of the data acquired through proprietary SW algorithms makes it possible to determine various wheel parameters: direction of movement, speed, diameter and thickness of the flange.

The SW algorithms comparing the data acquired on both sensors are also able to recognize the transit of an axle with respect to an event of undue occupancy.

Sensor size 60x270x150 mm
Weight 8.5 kg including the anchoring system
Power Consumption 1W 12Vdc
Interfaces

30m cable for connection to UG

Ultra fast anchorage to rail with adjustable clamp (no perforation of the rail), compatible UIC60, UIC50, FS46

IP 68 (2m)
Working temperature from -25°C to +70° C
Storage Temperature from -40°C to +70° C
Installation Environment A9 Conforms to IS402

ACBS-M/TDS Diagnostics

Particular attention was paid to developing system maintainability.

Multi Rail Lock: Diagnostica BCA-M/TDS

The minimization of the LRUs, the parameters for configuration of the equipment in non-volatile memories with the devices themselves make the LRUs interoperable between different devices, facilitating rapid maintenance operations without requiring special tools.

Extensive diagnostics make it possible to locate and highlight any abnormality promptly, thereby ensuring targeted intervention. A synoptic panel compliant with the requirements of MMI for ACBS makes the system extremely usable and the diagnostic information remotely accessible via client/server SW.