C3 HRI SYSTEM Introduction

The C3 HRI SYSTEM is a communications based system for activating Crossing Warning Devices. The system has 3 major component sub-systems, namely Locomotive, Crossing and Advanced Warning. The sub-systems work together in a fail-safe manner to provide reliable, inexpensive crossing protection for low volume grade crossings. Because the C3 HRI SYSTEM, is solar powered and compact enough to be installed on existing infrastructure, significant cost savings can be realized, both in installation and maintenance. The system provides features not found on any existing technology systems, which enhance safety and lower operating costs.

Features:

1. Reduced Installation costs.
2. Solar operation eliminates utility costs
3. Reduced maintenance costs.
4. Positive feedback to train crews of safe crossing operation.
5. Automatic notification to service personnel of unsafe crossings.
6. Automatic data logging on locomotives, tracks position, time, speed and crossing performance..
7. Self-diagnostics on crossing system prior to train arrival.
8. Dual redundant locomotive systems.
9. In cab alarm for unsafe crossing.
10. Active Advance Warning supported.

Technical Specifications

• Radio System—220 MHz Narrow Band GMSK FM TDMA digital transceivers.
• Transmission Power Monitor.
• Fail Safe shutdown.
• GPS frequency control. (1 ppm)
• Very high selectivity receiver ( >90db)
• Navigation System GPS supplemented with continuous Dead Reckoning
• Gyro, Speed and Direction Information from locomotive.
• 12 channel GPS Receiver.
• Software continuous reality check on position.
• Processor System- 16 bit CMOS Integrated Memory and I/O Single Chip
• Crossing Devices (3 processors each device)
• Main Processor has second Monitor processor checking it .continuously.
• Fail Safe Watchdog Timer.
• Reset Monitor - Fail system after 5 resets forces system shutdown
• Locomotive
• Dual systems (Primary and Backup)
• Operator Monitor (Status of 5 crossings and audio warning alarm)
• Linux data logger with Flash Memory Disk System
• Fault notification –Cellular Data modem on locomotive
• Island protection
• magnetometer with ultrasonic confirmation
• Power Supply
• Crossing 12vdc battery charged by solar panel.
• Locomotive 64vdc to 12 vdc isolated DC/DC Converter
• Crossing Flashers
• Railroad Approved LED

Environmental

-40C to +70C Operating

Installation

Crossing MASTER and SLAVE Cross Buck and Advance Warning Signs

Installation consists of:

• Electronics housing 12x12x8 Aluminum Housing pole mounted.
• Solar Panel and Antenna – pole mounted.
• Battery Box – buried alongside pole.
• Flasher LED Assembly- pole mounted.
• Conduit connecting above items.

Locomotive

Installation consists of:

• Electronics housing 24x24x10 Aluminum Housing bulkhead mounted.
• Antenna bracket assembly – mounted alongside headlight on cab exterior
• Crew Alerter Unit- mounted on bulkhead at engineers console
• Connections to Speedometer, 64vdc and Reverse indication
• Cable assemblies to interconnect above items.

Maintenance

Crossing Devices

• Monthly and quarterly on-site test as prescribed by FRA
• System operation during tests is confirmed using C3 Test Set, which is a laptop computer, connected to locomotive simulator unit.
• A monthly island test is performed using a calibrated magnetic fixture placed on electronic housing to simulate train proximity.
• Battery condition and grounds are confirmed during these tests.

Locomotive

• Reviewing log files from data logger can check system performance.
• Placing primary system in failed condition will allow secondary system to be tested.
• C3 Test Set with laptop can be used to verify proper system operation.