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Vehicle sensor FSSB 60/80 and FSSB 2/3C |
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Vehicle sensor FSSB 60/80
To enable the reliable and timely supply of information to all road users, definite location of the rail vehicles must be guaranteed. Scheidt & Bachmann’s tried and tested, maintenance-free vehicle sensor FSSB 60/80 is available for this purpose, enabling directional location even at high speeds. This modern locating system is based on the design principle of &dbquo;simple sensor, intelligent evaluation“, and combines the advantages of a simple inductive sensor with the possibilities of microprocessor technology. Inductive loops in the track and a microcomputer for information processing form the basic elements of the system.
Components:
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Inductive loop in the form of an "8“ (2 x 5 sleeper compartments)
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Double oscillator unit (DOZ-BG) for control and signal processing of 2 inductive loops
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Weathering-resistant aluminium track connection box, with rain shield for DOZ-BG
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Rail connection box for installation of the vehicle sensor in the track (resistant to tamping machines)
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Stainless steel rail foot cramps for various track shapes
Further features:
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Complete electrical isolation between track and loop
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Electrodynamic isolation from track via opposite winding directions of the two halves of the loop
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Rail currents have no effect on the loop, as induced currents are of the same level in both halves of the loop, but are in 180° phase opposition to one another
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Superstructure permits insulation, wooden and concrete sleepers required only in the direct vicinity of the loop
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No short-circuiting links or insulating joints required to limit the effective area
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Independent of axle shunts, as damping is effected via the iron ground connection
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No influencing by magnetic or eddy current brakes due to use of special cabling
Evaluation:
Vehicle sensor FSSB 2 / 3C
The use of the BUES 2000 as a modern, fully electronic safety system for level crossings has made it possible to transfer control tasks directly to the field element. This possibility has been utilised and the experience acquired with the FSSB-2/3C activation point. This unit operates as an intelligent system component and communicates with the BUES 2000 via the CAN (controller area network) bus, by means of data messages.
The vehicle sensor FSSB 2/3C can be used in the following alternatives:
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FSSB 2C Directional activating point for level crossings with signal lap (ÜS) usable for any kind of railway sleeper.
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FSSB 3C Directional activating point for level crossings with or without signal lap usable for wooden or concrete sleeper. Any directional use and parking is possible.
Components:
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Vehicle sensor A as inductive loop in the form of an &dbquo;8“ (2x5 sleeper compartments for use of 3 sensors) with:
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Rail connection box for installation of the vehicle sensor in the track (resistant to tamping machines)
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Stainless steel rail foot cramps for various track shapes
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Vehicle sensor B/C as inductive loop welded water-tight in a shock-proof plastic housing with:
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universal mounting for installation on the outside rail
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FSSB 2/3C connecting box with connecting plate and cable inlet in weathering-resistant aluminium track connection box, with rain shield for the electronic components
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Triple oscillator module (TRO-BG) to control the vehicle sensors and evaluate the sensor signals directly on the track; pluggable.
Further features:
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The features of FSSB 60/80 apply to FS A
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The activation point can be travelled over as required (stopping, turning)
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Reduced elongation in the track
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Maintenance-free system
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Continuous and intelligent evaluation of the vehicle sensors directly on the track with automatic recalibration
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Connection of several activation points via four wires (CAN bus system)
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Self-diagnosing system with automatic alarm outputs
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Connection of a switch button (UT) at the activation point
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Level crossing 
