KAVACH
Indian Railways' Automated Train Protection System (IR-ATP) also known as Train Collision Avoidance System (TCAS) also called KAVACH (AE09) is a fail-safe, reliable, and easy-to-use 2 x 2oo2 architecture-based system. . In terms of both life and property safety, KAVACH is an advanced, cost-effective SIL 4 product. In preparation for Independent Safety Accessor (ISA) certification from an RDSO-accredited international agency, it is being developed to comply with CENELEC SIL-4 standards EN50126, 50128, 50129, and 50159 Part A and B.
Kavach prevents Signal Passing At Danger (SPAD), controls the speed of the train within specified limits, indicates Movement Authority or/and displays Signal Aspect on the DMI in the Loco Pilot's Cab, and with proper functioning of Kavach, certain non-signaling-based protections are utilized to minimize the probability of train collisions within block sections and on running lines at stations. The plans call for carrying out EMC / EMI tests in accordance with EN61000 and EN55016. An extension of the chassis can handle a maximum of 2048 inputs on the station KAVACH AE09. Each of the SKAVACH and LKAVACH systems incorporates two CPU modules working on a 2x 2oo2 architecture in a hot standby configuration.
In addition to providing train protection, Areca's KAVACH system also prevents collisions.
All equipment is designed to comply with the RDSO/SPN/144 standard.
