Summary of the invention
The purpose of this utility model provides a kind of long apart from the long-term safety of convey coal pipe, operation efficiently for guaranteeing, is necessary for it and sets up the defeated coal main channel optical communication system of reliable, the stable long-distance pipe of a cover.
For this reason, the technical solution of the utility model is to solve like this: the defeated coal main channel optical communication system of long-distance pipe comprises Element management system, head end pipeline, 2
#~ 5
#Pumping plant, I ~ III terminal, 2.5Gbps active link, 2.5Gbps reserve link, 155Mbps link and 1 ~ No. 31 pressure detection station, special character of the present invention are that described Element management system is connected with the head end pipeline; Described head end pipeline by 2.5Gbps active link and reserve link respectively with 2
#~ 5
#Pumping plant and I number, II terminal are connected in series successively, and the described I terminal other end is connected with the III terminal; On the 155Mbps link, the first pressure detection station is connected with the head end pipeline, described head end pipeline by the 155Mbps link successively respectively with the first pressure detection station, the second pressure detection station, the 3rd pressure detection station, the 4th pressure detection station, the 5th pressure detection station, the 6th pressure detection station and 2
#Pumping plant is connected in series, and described 2
#Pumping plant successively respectively with the 7th pressure detection station, the 8th pressure detection station, the 9th pressure detection station, the tenth pressure detection station and 3
#Pumping plant is connected in series, and described 3
#Pumping plant successively respectively with the 11 pressure detection station, the 12 pressure detection station, the 13 pressure detection station, the 14 pressure detection station, the 15 pressure detection station, the 16 pressure detection station and 4
#Pumping plant is connected in series, and described 4
#Pumping plant successively respectively with the 17 pressure detection station, the 18 pressure detection station, the 19 pressure detection station, the 20 pressure detection station, the 21 pressure detection station and 5
#Pumping plant is connected in series, and described 5
#Pumping plant is connected in series with the 22 pressure detection station, the 23 pressure detection station, the 24 pressure detection station, the 25 pressure detection station, the 26 pressure detection station, the 27 pressure detection station and I terminal respectively successively, described I terminal is connected in series with the 28 pressure detection station, the 29 pressure detection station and II terminal respectively successively, and the described I terminal other end is connected in series with the 30 pressure detection station, the 31 pressure detection station and III terminal respectively successively.
The communication service kind of described Element management system is divided into 6 classes: the pipeline automation data transmission is made up of scheduling, administration telephone, industrial television, video conference, office network, emergency communication, described 6 class business arrange 73 communication lines altogether, and press website and distribute: 1~No. 4 pumping plant, 1~No. 3 terminal and each 8 tunnel, No. 5 pumping plant 9 tunnel of water stop.
It is 147.2Kbps that described pipeline automation data computation goes out service bandwidth, and scheduling, administrative voice service bandwidth are 1Mbps, and the industrial television service bandwidth is 253 Mbps, and videoconference bandwidth is 50 Mbps.
The main line light communication capacity of described active link is STM-16 or 2.5Gbps, and each valve chamber and pressure monitoring point light communication capacity are STM-1 or 155Mbps along the line, and smooth upgrade is to STM-64.
Described Element management system is connected with clock interface with optical interface, electrical interface, worker's affair and user interface, management interface, equipment alarm interface successively.
Communication service division and lane assignment:
Press convey coal pipe communication characteristics, communication service is divided into 6 classifications by the transmission content: automation data, production, power dispatching telephone, administration telephone and fax, video conference, industrial television and office network, and by these 6 classifications transmission route has been carried out distributing (seeing Table 1,2).
Table 1
#
The communication service kind is divided
Table 2
#
Technology station yard communication lane assignment
Determining of the required bandwidth of communication service:
1) automation data service bandwidth: optical communication system sends pipeline each valve chamber along the line and pressure detection data to nearest pumping plant or terminal station respectively; These data send the regulation and control center to by trunk communication again after integrating with the SCADA data in pumping plant or terminal station; After all uniform datas integration completely of regulation and control center, send total regulation and control center again to.For satisfying above-mentioned service needed, through a large amount of experimental verifications and reckoning, the SCADA data bandwidth of each pumping plant is defined as 128kbps, each valve chamber and data of monitoring point bandwidth are defined as 19.2 kbps.
2) scheduling, administrative voice service bandwidth: this business mainly is always to regulate and control the bidirectional transmission at Center-to-Field regulation and control center, and the bidirectional transmission between on-the-spot regulation and control center and pipeline each pumping plant along the line, water stop and each terminal station.This each website of business data transmission bandwidth all is set to 1Mbps.
3) industrial television service bandwidth: this business mainly is the video data transmission between pipeline each website along the line, valve chamber and pressure detection point and the on-the-spot regulation and control center.The video transmission bandwidth location 3Mbps of each valve chamber and pressure detection point; The water stop video transmission bandwidth is 12Mbps; 1~No. 5 the pumping plant bandwidth is respectively 48,30,24,21,24Mbps; 1~No. 3 terminal bandwidth is respectively 70,12,9Mbps.
4) videoconference bandwidth: this business mainly is the video data transmission between pipeline each pumping plant along the line and the on-the-spot regulation and control center.The videoconference data transmission bandwidth of 2~No. 6 pumping plants is respectively 14,12,10,8,6Mbps.
5) office system bandwidth and emergency communication bandwidth take in capacity is reserved.
The SDH optical communication system makes up:
For satisfying the needs of long-run development, the capacity decapacitation of optical communication system is satisfied outside the business demand of present stage, and the dilatation that also should be the later stage stays leeway.Therefore, according to the result of calculation of last joint bandwidth with take all factors into consideration, the main line optical communication system capacity of this convey coal pipe engineering is chosen to be STM-16(2.5Gbps), trunk line adopts 1+1 MSP protected mode, amounts to 9; Pipeline each valve chamber along the line and pressure detection point optical communication system capacity are STM-1(155Mbps), adopt SNCP or RSTP protected mode, amount to 27.Designed optical communication system main line has smooth upgrade to the ability of STM-64.
System interface arranges:
1) optical interface: reach the G.652 transport property of type optical fiber according to the communication distance between optical communication station, for this engineering being provided with meets ITU-TG.707, G.957, optical interface G.962.The adaptor union model of interface is SC/PC, connects decay≤0.5dB, reflectance coefficient≤-40db, its length configuration and optical power budget the results are shown in Table 3.
Table 3
#
Length configuration and optical power budget table
2) electrical interface: STM equipment can provide 2Mbit/s, the electrical interface of various branch roads such as 155Mbit/s, and interface features can satisfy the requirement of ITU-TG.703, and to the 2048kbit/s interface, impedance is 75 Ω.
3) public affair and user interface: the public affair line interface meets the requirement of 64kbit/s (ITU-TG.703) digital interface, and the user terminal interface meets two wires COBBAIF requirement.
4) management interface: the QX interface is Ethernet interface, meets ITU-TG.773 protocol groups B3, and the interface of SDH Network Management Equipment and upper class network management system is Q3; F interface is and the local terminal interface to adopt V.24(RS232-C) interface, transmission bit rate is 9.6kbit/s.
5) equipment alarm interface: external alert switching value input port and Local Switch amount output port are provided.
6) clock interface: SDH equipment has 2 clock input interfaces and 1 clock output interface at least, and its interface is 2048kbit/s, meets the requirement of ITU-TG.703 and ITU-TG.704.
The utility model compared with prior art, the present invention adopts the multi-service transport platform MSTP equipment based on SDH.Utilize the multi-service interface of this equipment, can satisfy TDM simultaneously, transmission and processing demands that ATM and ethernet etc. are professional, and can transmit data and the voice at this station easily, and have with characteristics:
1), complete compatible design: the full compatibility of list shelf structure designs, and can realize STM-1 in a sub-frame, STM-4, all application of STM-16.
2), have reliability and stability: the integrated level height of system, the fault isolation of taking and eliminating back have guaranteed the reliability and stability of system from safety methods such as fault-tolerant design extensive, that allow veneer hot line job, maloperation.
3), the hybrid power supply mode: the mixing of power supply mode refers to dispersion and concentration and combines, and namely the veneer of power supply sensitivity is adopted the power supply of this plate, i.e. so-called dispersion, other veneers are centrally connected power supply then, comes the reliability of further raising system with this.
4), multidirectional light path inserts: can insert 3 light directions at least, to satisfy more complicated networking requirement of later stage.
5), perfect protection mechanism: the network architecture that this project adopts, can realize that the 1+1 of point-to-point or link and the protection of 1:1 circuit switch.
6), unified perfect webmaster: the Network Element Layer of network management system and NE management layer have management functions such as system, configuration, fault, maintenance and safety, can realize the remote online upgrading of software, and non-interrupting service.
7), 155Mbps equipment can smooth upgrade to 622M, the high-order intersection is not less than 24 * 24 VC-4, low order interlace algorithm is not less than 1512 * 1512 VC-12.
8) but, 2.5Gbps equipment smooth upgrade is to 10Gbps, high-order intersects and is not less than 384 * 384 VC-4, low order interlace algorithm is not less than 16128 * 16128 VC-12, thereby has guaranteed networking and the great alerting ability of scheduling.Extensively with the defeated coal of long distance and relevant industries.
The specific embodiment
Below in conjunction with drawings and Examples the utility model content is described further.
With reference to shown in Figure 1, the defeated coal main channel optical communication system of long-distance pipe comprises Element management system, head end pipeline, 2
#~ 5
#Pumping plant, I ~ III terminal, 2.5Gbps active link, 2.5Gbps reserve link, 155Mbps link and 1 ~ No. 31 pressure detection station, described Element management system 1 is connected with head end pipeline 2; Described head end pipeline 2 by 2.5Gbps active link 3 and
reserve link 4 respectively with 2
#~ 5
#Pumping plant and I number, II terminal are connected in series successively, and the described I terminal other end is connected with the III terminal; 1. the first pressure detection station is connected with head end pipeline 2, described head end pipeline 2 by 155Mbps link 5 successively respectively with the first pressure detection station 1., the second pressure detection station 2., the 3rd pressure detection station 3., the 4th pressure detection station 4., the 5th pressure detection station 5., the 6th pressure detection station is 6. with 2
#Pumping plant is connected in series, and described 2
#Pumping plant successively respectively with the 7th pressure detection station 7., the 8th pressure detection station 8., the 9th pressure detection station 9., the tenth pressure detection station is 10. with 3
#Pumping plant is connected in series, and described 3
#Pumping plant successively respectively with the 11 pressure detection station
, the 12 pressure detection station
, the 13 pressure detection station
, the 14 pressure detection station
, the 15 pressure detection station
, the 16 pressure detection station
With 4
#Pumping plant is connected in series, and described 4
#Pumping plant successively respectively with the 17 pressure detection station
, the 18 pressure detection station
, the 19 pressure detection station
, the 20 pressure detection station
, the 21 pressure detection station
With 5
#Pumping plant is connected in series, and described 5
#Pumping plant successively respectively with the 22 pressure detection station
, the 23 pressure detection station
, the 24 pressure detection station
, the 25 pressure detection station
, the 26 pressure detection station
, the 27 pressure detection station
Be connected in series with the I terminal, described I terminal successively respectively with the 28 pressure detection station
, the 29 pressure detection station
Be connected in series with the II terminal, the described I terminal other end successively respectively with the 30 pressure detection station
, the 31 pressure detection station
Be connected in series with the III terminal.
The communication service kind of described Element management system is divided into 6 classes: pipeline automation data transmission, scheduling, administration telephone, industrial television, video conference, office network, emergency communication, described 6 class business arrange 73 communication lines altogether, and press website and distribute: 1~No. 4 pumping plant, 1~No. 3 terminal and each 8 tunnel, No. 5 pumping plant 9 tunnel of water stop.
It is 147.2Kbps that described pipeline automation data computation goes out service bandwidth, and scheduling, administrative voice service bandwidth are 1Mbps, and the industrial television service bandwidth is 253 Mbps, and videoconference bandwidth is 50 Mbps.
The main line light communication capacity of described active link is STM-16(2.5Gbps), each valve chamber and pressure monitoring point light communication capacity are STM-1(155Mbps along the line), and smooth upgrade is to STM-64.
Described Element management system is connected with clock interface with optical interface, electrical interface, worker's affair and user interface, management interface, equipment alarm interface successively.
Embodiment 1
Determining of described communication system error performance objective.
According to position and the business demand of each website of this convey coal pipe engineering, its hypothetical reference digital section length is made as 420km.HRDS bit error code index in the case sees Table 4.
Table 4
#
420km HRDS bit error code index table
According to relevant regulations, this engineering digital section conversion result of the longest 139Km can satisfy the target bit error of table 5.
Table 5
#
The long number field bit target bit error of this engineering
Embodiment 2
Determining of described communication system shake index.
The maximum jitter of SDH network delivery port should be not more than the specified value in the table 6, and the maximum jitter value of digital section delivery port should be not more than the specified value in table 6 bracket; Its input jiffer and drift tolerance limit meet the YD/T5095-2005 code requirement.Its drift tolerance value sees Table 7.
Table 6
#
The maximum output jitter that allows of SDH network delivery port
Table 7
#
Drift limit value on the STM-N interface
Embodiment 3
The estimation of cable link index.
Adopt the worst value method meter.The reality of decay constrained system can reach regenerator section and apart from computing formula be:
L=(P
S-P
r-P
P-∑A
C)/(A
f+A
s++M
C).
P in the formula
SBe s point life-span light transmitted power at the end, dBm; P
rBe r point life-span optical receiver sensitivity at the end, dBm; ∑ A
CBe s, flexible jumper loss sum between r, dB; M
CBe optical cable degree more than needed, dB/km; A
sBe the fixing fusion splice average loss of optical fiber, dB/km; A
fBe optical fiber mean attenuation coefficient, db/km; P
PBe maximum optical path power penalty.