Automatic Long -Length Optical Fibre Cable Installation System
description
Transcript of Automatic Long -Length Optical Fibre Cable Installation System
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ANCIT WORKSHOPTorino, 30-31 March 1998
Automatic Long -LengthOptical Fibre Cable Installation System
NTT Access Network Systems Laboratories
Jiro Sogame
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ANCIT WORKSHOPTorino, 30-31 March 1998
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
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ANCIT WORKSHOPTorino, 30-31 March 1998
Plan For Fibre To The Home In NTT
19971998
1999
yearyear
year
2010 2000
100%
50%
20%
100%
year
Plan For Fibre To The Home In NTT
Plan for FTTH
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ANCIT WORKSHOPTorino, 30-31 March 1998
Targets Of Cost ReductionTargets Of 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
Metallic line cost
ONUFOLTUser Facilities
(Excluding ONU)
Distribution Facilities
Feeder Facilities
Year0
1
5
10
1998 - 2000
Ɍ-System
FTTH
FTTH
FTTH
(Target for further cost reduction)
1997
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ANCIT WORKSHOPTorino, 30-31 March 1998
Area of This Installation SystemArea of This Installation System
distribution facilities
SLT
AURORA
FTM
ONU
Feeder facilities
customer facilities
NTT Central Office
requirement of economic or efficient underground cable installation method
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ANCIT WORKSHOPTorino, 30-31 March 1998
Hight Density Optical Fiber CableHight Density Optical Fiber Cable
3000-Core Fiber Optic Cable
1000-Core Fiber Optic Cable
Outer diameter
Cable weight
30mm
0.85kg/m
Outer diameter
Cable weight
55mm
2.5kg/m
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ANCIT WORKSHOPTorino, 30-31 March 1998
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
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ANCIT WORKSHOPTorino, 30-31 March 1998
1 One end cable pulling system
2 Distributed cable pulling system
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ANCIT WORKSHOPTorino, 30-31 March 1998
Unsuitable for optical fibre cable in long lengthUnsuitable for optical fibre cable in long length
pulling direction
several km
Cable reel Cable pulling truck
One-end cable pulling system with truck
Ten
sion
Distance
Cable allowable force Å~exceeding force for cable
Pulling force
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ANCIT WORKSHOPTorino, 30-31 March 1998
Distributed pulling system with machines
Ten
sion Cable allowable force
Distance
several km
Suitable for optical fibre cable in long length Suitable for optical fibre cable in long length
Pulling force
pulling direction
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ANCIT WORKSHOPTorino, 30-31 March 1998
Installation Of Optical fibre cable in long length
Distributed pulling system is suitable
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ANCIT WORKSHOPTorino, 30-31 March 1998
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
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ANCIT WORKSHOPTorino, 30-31 March 1998
Automatic pulling-rope winding machine
Automatic cable feeding machine
cable-pulling machine
Operator
Automatic Long -Length Optical Fiber Cable Installation SystemAutomatic Long -Length Optical Fiber Cable Installation SystemAutomatic Long -Length Optical Fiber Cable Installation SystemAutomatic Long -Length Optical Fiber Cable Installation System
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ANCIT WORKSHOPTorino, 30-31 March 1998
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
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ANCIT WORKSHOPTorino, 30-31 March 1998
Cable Pulling MachineCable Pulling Machine
Cable-pulling machine
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ANCIT WORKSHOPTorino, 30-31 March 1998
in manholeTension sensor
drive unit
control unit
Outline Of Cable Pulling MachineOutline Of Cable Pulling Machine
Pulling force
Pulling speed
2 kÇm
20 m/min
Time of setting up 10 min by 2 persons
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ANCIT WORKSHOPTorino, 30-31 March 1998
Ten
sion
DistancePulling force
cable allowable force
pulling direction
Setting Position Of Pulling MachinesSetting Position Of Pulling MachinesSetting Position Of Pulling MachinesSetting Position Of Pulling Machines
Put machines at the point of below cable allowable force
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ANCIT WORKSHOPTorino, 30-31 March 1998
installation length between machinesInstallation length between machines
Length between A and B
300-core fiber optic cable
600-core fiber optic cable
1000-core fiber optic cable 400m
600m
1000m
1st machine 2nd machine pulling direction
LengthA B
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ANCIT WORKSHOPTorino, 30-31 March 1998
1st machine 2nd machine
pulling direction
this sensor (load cell ) detects the "tension"
2st machine starts working
1st machine starts working
1st 2nd 3rdload cell
Control method for automatic cable pulling
1 Starting
time
ten
sio
n
starting point
starting value
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ANCIT WORKSHOPTorino, 30-31 March 1998
1st machine 2nd machine
pulling direction
Control method for automatic cable pulling
2 On working and Stop
Puller controls pulling speed to maintain the mark value
time
mark value
ten
sio
n acceleration
deceleration
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ANCIT WORKSHOPTorino, 30-31 March 1998
Control method for automatic cable pulling
2 Stop
stop value
mark value
ten
sio
n acceleration
deceleration
no action
this sensor (load cell ) detects the "small tension"
2st machine stops working
1st machine stops working
load cell
1st 2nd 3rd1st machine 2nd machine
pulling direction
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ANCIT WORKSHOPTorino, 30-31 March 1998
Characteristics
Jointing part between cable and rope passes through the belts on machine
We can install the cable without limit of lengthusing some machines which are interlocked
It is a safe machine for cable to stop installationin case of detecting over-load or race
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ANCIT WORKSHOPTorino, 30-31 March 1998
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
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ANCIT WORKSHOPTorino, 30-31 March 1998
Automatic Cable Feeding MachineAutomatic Cable Feeding Machine
Automatic Cable Feeding Machine
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ANCIT WORKSHOPTorino, 30-31 March 1998
Outline Of Cable Feeding MachineOutline Of Cable Feeding Machine
Cable Reel
Drive Unit
Control Unit
In Manhole
SensorOn the road
Feeding speedApplication of reel weight with cableTime of setting up
0Å`20 m/min
3000 kg
10 min by 2 persons
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ANCIT WORKSHOPTorino, 30-31 March 1998
Detection Of Cable SlackDetection Of Cable Slack
velocityof cable
velocity orderto drive unit
acceleration acceleration
uniform velocity no direction
deceleration decelerationstop stop
cablea ray sender
a ray receiver
sensorsetting position detecting way
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ANCIT WORKSHOPTorino, 30-31 March 1998
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
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ANCIT WORKSHOPTorino, 30-31 March 1998
Automatic Cable Feeding MachineAutomatic Cable Feeding Machine
Automatic pulling- rope winding machine
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ANCIT WORKSHOPTorino, 30-31 March 1998
Automatic pulling-rope winding machineAutomatic pulling-rope winding machine
Winding speedApprication of rope diameter 4Å 1̀4mm
35 m/min (max)
Time of setting up 10 (min by 2 persons)
Rope reel
Traverser
controle unit
motorOn the road
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ANCIT WORKSHOPTorino, 30-31 March 1998
Automatic Pulling-Rope Winding MachineAutomatic Pulling-Rope Winding Machine
in manhole
Motor continuously keeps pulling rope
in manhole
pulling ropepulling rope
2.pulling machine stops working1.pulling machine goes on working
1.motor can lift up the rope 2.motor can not lift up the rope
go on winding stop winding
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ANCIT WORKSHOPTorino, 30-31 March 1998
Effect
current system this system
10.9
10%
ins
tall
ati
on
co
st
Cost reduction of this system
current system
this system