Intelligent Transportation System, ITS (Intelligent Railway System, IRS) IRS 2.35. IRS IRS IRS IRS IRS
IRS IRS 1. IRS 2. IRS 3.. GPS IRS IRS 1. 2. 3.
IRS IRS 1
1 2 3 4 A B C E F D a b c 1 IRS IRS FTAFEMA IRS (Time-Behavior) FTA Markov
1 FMEAFTA Markov Analysis FMEA FTA Markov Analysis 1. IRS (Time-dependent Behavior) 2. IRS 1 10 123 45 1
23 FTA IRS 1. 2. 3. 4. 5. 2 2 IRS
. GPS 3 3 1. 2. GPS
25 25 120~130 1200~1500 60 800 3. (1) ( ) (2) JPEG 4
4 FTA 5 GPS ATW/ ATS
FTA 6
6 FTA FTA 1-11-21-32-12-22-32-42-5 1234 Step.1 RBD Series Step.2 ( ) ( ) ( ) Step.3 Step.4
RBD Failure Rate 1 2 FTA t( ) 3 1 4 2 0 0 0 0 0 0 1 0.2 0.019174308 0.066396896 0.03221516 0.046651183 0.0030974940.996902506 0.4 0.038604063 0.130819265 0.064439398 0.093476499 0.0122285270.987771473 0.6 0.058269418 0.193352567 0.096659052 0.140448261 0.0271560320.972843968 0.8 0.078151443 0.254078203 0.128860819 0.187539727 0.0476497570.952350243 1 0.098232075 0.313073706 0.161031764 0.234725086 0.0734862530.926513747
1.2 0.118494084 0.370412924 0.193159326 0.281979444 0.10444883 0.89555117 1.4 0.138921026 0.426166194 0.225231321 0.329278808 0.1403274960.859672504 1.6 0.159497214 0.480400509 0.257235946 0.376600071 0.180918866 0.819081134 1.8 0.180207677 0.533179676 0.289161779 0.423920995 0.2260260590.773973941 2 0.201038132 0.584564467 0.320997786 0.471220194 0.2754585820.724541418 2.2 0.221974946 0.634612763 0.352733313 0.518477121 0.3290321980.670967802 2.4 0.243005114 0.683379693 0.38435809 0.565672042 0.3865687860.613431214 2.6 0.264116223 0.730917762 0.415862231 0.612786029 0.4478961930.552103807 2.8 0.285296431 0.777276981 0.447236226 0.659800934 0.5128480780.487151922 3 0.306534439 0.822504982 0.478470943 0.706699375 0.5812637560.418736244 5-44 t( ) 1 2 0 0.2 0.4 0.6 0.8 1 0 0 0 1 0.055254762 0.100343304 0.005544445 0.994455555 0.108659144 0.193802022 0.021058362 0.978941638 0.160297223 0.280907219 0.045028647 0.954971353 0.210249033 0.362147635 0.07614119 0.92385881 0.258590752 0.437973081 0.113255788 0.886744212 0.305394893 0.508797569 0.155384179 0.844615821
1.4 0.350730469 0.575002192 0.201670788 0.798329212 1.6 1.8 2 2.2 2.4 2.6 2.8 3 0.394663165 0.636937762 0.251375873 0.748624127 0.437255495 0.694927246 0.303860757 0.696139243 0.478566952 0.749268 0.358574903 0.641425097 0.518654152 0.800233825 0.415044596 0.584955404 0.557570974 0.848076857 0.472863039 0.527136961 0.595368687 0.893029304 0.531681684 0.468318316 0.632096078 0.935305047 0.591202652 0.408797348 0.66779957 0.975101106 0.651172099 0.348827901 7 8 2.3479
2.3479 8.77631%2.3479 80% 1.38665 1.38665 80% 1.68201 9 2-3 2-2
9 Minimum Cuts 15 (1) (2) (3) (4) (5) (6) (7) (8) (9) (10) (11) (12) (13)
(14) (15) 10 minimum cut (3) minimum cut (1)minimum cut (5) min cut (13) min cut (2) 0.05 ( R ( t) R ( t)) dt R(t) R (t) GPS 2.6
3.8 GPS 3.9. 1. IRS IRS 2. 3. (1) a. 1.39 80% 1.68
b. 2.35 2.35 8.77% (2) a. 3000 16.35% b. GPS 2.6 GPS 3.8 ~ 3.9 (3) a. GPS b. 2.35 1 3