310 likes | 429 Views
Automatic Long -Length Optical Fibre Cable Installation System. NTT Access Network Systems Laboratories Jiro Sogame. Contents. Background of this installation system Installation method Explanation of this installation system and it’s component machines
E N D
AutomaticLong -LengthOptical Fibre Cable Installation System NTT Access Network Systems Laboratories Jiro Sogame
Contents Background of this installation system Installation method Explanation of this installation system and it’s component machines Cable pulling machine Cable feeding machine Pulling rope winding machine
year 1997 year 1998 100% 100% year 1999 50% 20% 2010 year 2000 Plan For Fibre To The Home In NTT Plan For Fibre To The Home In NTT Plan for FTTH
Targets Of Cost Reduction Targets Of Cost Reduction 10 User Facilities FTTH FOLT (Excluding ONU) ONU Distribution Facilities Feeder Facilities 5 Metallic line cost FTTH FTTH Ɍ -System 1 0 1997 1998 - 2000 Year (Target for further cost reduction) 1997 Twice as much as metric line cost (Achievement of metallic line cost by -System) 1998~2000 FTTH cost will be reduced to metallic line level
Background of this installation system Installation method Explanation of this installation system and it’s component machines Cable pulling machine Cable feeding machine Pulling rope winding machine Installation method
1 One end cable pulling system 2 Distributed cable pulling system
One-end cable pulling system with truck several km Cable pulling truck Cable reel pulling direction Cable allowable force Å~ Tension exceeding force for cable Pulling force Distance Unsuitable for optical fibre cable in long length
Distributed pulling system with machines several km pulling direction Cable allowable force Tension Pulling force Distance Suitable for optical fibre cable in long length
Distributed pulling system is suitable Installation Of Optical fibre cable in long length
Background of this installation system Installation method Explanation of this installation system and it’s component machines Cable pulling machine Cable feeding machine Pulling rope winding machine Installation method
Background of this installation system Installation method Explanation of this installation system and it’s component machines Cable pulling machine Cable feeding machine Pulling rope winding machine Installation method
Tensionsensor drive unit control unit
Setting Position Of Pulling Machines Setting Position Of Pulling Machines Put machines at the point of below cable allowable force pulling direction cable allowable force Tension Distance Pulling force
starting value tension starting point Control method for automatic cable pulling 1 Starting time
acceleration tension mark value deceleration Control method for automatic cable pulling 2 On working and Stop time Puller controls pulling speed to maintain the mark value
Control method for automatic cable pulling 2 Stop acceleration mark value tension deceleration stop value no action
Jointing part between cable and rope passes through the belts on machine We can install the cable without limit of length using some machines which are interlocked It is a safe machine for cable to stop installation in case of detecting over-load or race Characteristics
Background of this installation system Installation method Explanation of this installation system and it’s component machines Cable pulling machine Cable feeding machine Pulling rope winding machine Installation method
Automatic Cable Feeding Machine
0Å`20 m/min Feeding speed Application of reel weight with cable 3000 kg Time of setting up 10 min by 2 persons
detecting way sensor setting position cable a ray sender velocity order to drive unit velocity of cable acceleration acceleration uniform velocity no direction deceleration deceleration stop stop a ray receiver Detection Of Cable Slack Detection Of Cable Slack
Background of this installation system Installation method Explanation of this installation system and it’s component machines Cable pulling machine Cable feeding machine Pulling rope winding machine Installation method
Automatic Pulling-Rope Winding Machine Automatic Pulling-Rope Winding Machine Motor continuously keeps pulling rope 2.motor can not lift up the rope 1.motor can lift up the rope stop winding go on winding pulling rope pulling rope in manhole in manhole 1.pulling machine goes on working 2.pulling machine stops working
10% 1 0.9 installation cost current system this system Effect Cost reduction of this system current system this system