Fail-safe 2x2oo2 microcontroller-based axle counting system for the High Availability section proving in Railways. It can be configured to various versions using a fool-proof method thus prevents the wrong configuration at the site, ensures the highest degree of safety. An operating mode like preparatory, clear and occupied, configuration status, wheel counts and error messages are constantly displayed on the system LCD status panel and interactive Reset box.
Dual Redundant Magnetic sensors detect the axle counts and direction of train movements that are transmitted to the other end of the system to verify and clear the block. Wheel sensed at one DP will clear at any DP. The section status can be fed directly to further controlling systems through vital relay contacts. Each section has two or three detection points based on configurations. The system unit is housed near the track with its DP placed at a variable distance of 15 Mts.
System
- Microprocessor-based fail-safe embedded system
- Detection of axles and direction of train movement
- Fixed pair communication, CRC check & unique addressing of units ensures fail-safety
- User-friendly GUI aids to download events via RS232 port
- Units are housed in location boxes near the tracks
Axle Detectors
- Web mounted on track works with 90-R, 52Kg, 60Kg rails
- Phase detection principle employed
- Signals fed at 21Khz and 25Khz to Tx coils at 60V RMS
- Axles above 550mm are detected
Dual Reset Box
- Amended as per RDSO Ver 2.0 Specification
- Interactive RESET Box with Separate status LCD display for individual axle counting system on single quad cable multidrop mode and common Resetting
- Independent system status and combined parallel Section
- Stores events locally to download at station only