Reference Sheet
Client: RATP
Equipment:
Project start: February 2007
Start of manufacture of the DOF1: July 2007
Start of bringing DOF1 into operation on site: March 2008
Start of operation of DOF1 with Landing doors: May 2008 (projected)
Project end: 2011 (end of automation of the line, withdrawal of the DOF1
system)
Standards: 61508, EN50126, EN50128, EN50129
Safety level: SIL3/SIL4 on the inopportune opening failure of the doors
In the context of the "Paris Subway Line 1 Automation"
project, the SIL4 DOF1 safety system, which is independent from the automatic
train system, will command the opening and closing of the landing doors
installed on all the line's platforms. This system will be used with existing trains and will be compatible
with the new automatic trains that will progressively replace the current ones. DOF1
also prevents the train doors on the opposite side of the platform from
opening.
DOF1 will then be disassembled when all the automatic trains are in
operation on Line 1.
The
DOF1 system includes an embedded portion on the train that processes the train
door opening and closing commands made by the conductor and sends the command
to the portion located in the platform’s technical office. The command to open
the door is processed and sent to the landing doors.
The
train/ground link is effected via a mat installed on the rails, which creates a
magnetic loop with a sensor installed on the train’s bogie.
This system is
SIL4-level safe to ensure the landing doors can only be opened when the train
has reached the platform. The solution is based on Siemens SIL3 automatons.
Clearsy is the Project Manager and responsible for the study and
manufacturing of equipment series to be installed throughout the line. It
is working in partnership with TLTI, more specifically responsible for the
production of equipment, mechanical and electronic parts.
Capture of graphic animation carried out with Brama
Clearsy
adopted an original method to submit to the call to tender: a B model of the specifications was performed with the Composys tool,
then graphically animated with the Brama tool. We were therefore able to define the needs of the RATP by transcribing
our understanding of the system into a model and then validating this
understanding by animating the system in various scenarios viewed on the
screen. Questions could therefore be asked and a detailed response provided, as
the system must be designed in only six months.
Like
the Coppilot system, Clearsy uses a development process that integrates
the B method, from the system specifications up to the code stage. The B models developed participate in demonstrating the system's safety
and the level of availability of the system that must be very high in order to
ensure fluid traffic.
The animation system is available on Brama's site: www.brama.f
