CN102281169A - Cable tunnel monitoring link method based on photoelectric composite cable and monitoring system thereof - Google Patents
Cable tunnel monitoring link method based on photoelectric composite cable and monitoring system thereof Download PDFInfo
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Abstract
The invention relates to a cable tunnel monitoring link method based on a photoelectric composite cable and a monitoring system thereof. The method is characterized in that: the photoelectric composite cable is used as communication and power supply links of a monitoring system, an optical communication link uses ring network topology mode connection, and a telephonic communication link uses bus-type network topology mode connection. The system comprises a monitoring base station, monitoring terminals, the photoelectric composite cable, wherein the monitoring terminals have N sets, each set comprises M terminal actuators, the monitoring base station comprises a centralized control device and M base station actuators, the base station actuators and the terminal actuators forms ring network topology connection, the M terminal actuators of each set of monitoring terminal form bus-type network topology connection, and M base station actuators form bus-type network topology connection. The method and the system in the invention have the advantages of long monitoring distance, simple laying, simple structure, and high communication reliability.
Description
Technical field
The present invention relates to monitoring technology, be specifically related to a kind of cable tunnel monitoring link methodology and monitoring system based on optoelectronic composite cable.
Background technology
Flourish along with the modern industrialization industry, the equipment automatization management development, the cable consumption is more and more.And along with the transformation to the city overhead transmission line, the circuit of 110kV, 220kV even 500kV electric pressure changes cable into, the cable tunnel is accepted and understanding by increasing people as a kind of emerging system of laying, and the scale of cable tunnel and length are also in continuous expansion in the city.
Since reasons such as the power cable length density of operation increases, and the cable of cable tunnel is more and more, and airtight in view of the space, cable tunnel, cable bearer is numerous, and it is not smooth to ventilate, the also corresponding increase of the incidence of its power cable fire incident.In tunnel cable, it is relatively slow to be superheated to the development speed that forms fire from cable and cable joint, and temperature cycle integration time is longer, the generation that can in time scent a hidden danger, can prevent, stop this type of accident by cable and cable tunnel monitoring system.
Cable and cable tunnel monitoring system are monitored the cable temperature in the cable tunnel, ambient temperature and humidity, water level, smog, pernicious gas, fuel gas etc., and power and message transmission by optoelectronic composite cable, can realize Long-distance Control according to user's request simultaneously to blower fan, water pump, illuminator, image capturing system.
Existing cable tunnel monitoring technology has following three kinds of schemes usually:
1. based on the monitoring of RS485 bus: advantage is that communication is simple, and monitoring density is big, and shortcoming is that distance is shorter, and bandwidth is little.
2. based on the monitoring of optical cable: advantage is that communication distance is long, and bandwidth is big, and shortcoming is repeatedly to connect up.
3. based on wireless monitoring: advantage is to connect up, and it is convenient to lay, and shortcoming is that the time delay and the reliability of radio communication still has much room for improvement.
In wired solution, power line and holding wire are wanted twice wiring, and use external power supply in the wireless solution also must lay supply line, quantities is few unlike wired solution, that uses built-in power also exists the problem in useful life, its operating frequency can not be excessive.
Summary of the invention
In order to overcome the deficiencies in the prior art, one of purpose of the present invention has proposed a kind of cable tunnel monitoring link methodology based on optoelectronic composite cable, and it realizes the monitoring network of long distance, many monitoring points in the cable tunnel.
One of for the attainment of one's purpose, the technical solution adopted in the present invention is as follows:
A kind of cable tunnel monitoring link methodology based on optoelectronic composite cable may further comprise the steps:
A., optoelectronic composite cable is set, and described optoelectronic composite cable comprises optical signal line, electrical signal line and power line;
B., monitored base stations is set, and described monitored base stations comprises M base station driver, and the numbering of described M base station driver is designated as 1 respectively to M, and be designated as accordingly respectively the 1st base station driver ..., M base station driver; Monitor terminal is set, and described monitor terminal is the N group altogether, includes M terminal driver in every group, and the numbering of described M terminal driver is designated as M+1 to N*M+M respectively, and be designated as M+1 terminal driver accordingly respectively ..., N*M+M terminal driver; Wherein, M, N are positive integer;
C. each base station driver by the optical signal line in the optoelectronic composite cable respectively with every group of monitor terminal in each terminal driver constitute the ring network topology and be connected; M terminal driver in every group of monitor terminal constitutes the bus-network topology by the electrical signal line in the optoelectronic composite cable and connects; M base station driver constitutes the bus-network topology by the electrical signal line in the optoelectronic composite cable and connects, and the central controller of monitored base stations is connected with the bus-network topology link of base station driver;
D. the power line of described optoelectronic composite cable provides operating voltage for monitored base stations and monitor terminal.
As preferably, in step C, ring network topology connected mode is specially: the light-receiving port of the j base station driver of monitored base stations links to each other by the second smooth transmit port of optical signal line with the 1st group M+j terminal driver, and the second light-receiving port of the i*M+j terminal driver of i group is connected by the second smooth transmit port of optical signal line with (i+1) * M+j terminal driver of i+1 group; The second light-receiving port of the N*M+j terminal driver of N group is connected by the light transmit port of optical signal line with the j base station driver of monitored base stations; Wherein, i=1,2 ..., N-1}, j={1,2 ..., M}.
As preferably, among the described step C, the bus-network topology connected mode of terminal driver is specially: second signal of telecommunication main track port of M terminal driver in the g group monitor terminal links together by the electrical signal line of optoelectronic composite cable, second signal of telecommunication negative wire port also links together by the electrical signal line of optoelectronic composite cable, wherein, g={1,2,, N}; The bus-network topology connected mode of base station driver is specially: the signal of telecommunication main track port of the M in the monitored base stations base station driver links together by the electrical signal line of optoelectronic composite cable, and the signal of telecommunication negative wire port of base station driver also links together by the electrical signal line of optoelectronic composite cable.
As preferably, described optoelectronic composite cable also comprises standby optical signal line, standby electrical signal line and stand-by power supply line, to substitute the circuit that disconnects or go wrong, maintains easily.
Two of purpose of the present invention has also proposed a kind of cable tunnel monitoring system based on optoelectronic composite cable, and it has simple in structure, reliable communications, the simple advantage of laying.
For the attainment of one's purpose two, the technical solution adopted in the present invention is as follows:
A kind of cable tunnel monitoring system based on optoelectronic composite cable, this system comprises monitored base stations, monitor terminal, optoelectronic composite cable;
Described optoelectronic composite cable comprises optical signal line, electrical signal line and power line;
Described monitor terminal is the N group altogether, includes M terminal driver in every group, and the numbering of described M terminal driver is designated as M+1 to N*M+M respectively, and be designated as M+1 terminal driver accordingly respectively ..., N*M+M terminal driver;
Described monitored base stations comprises central controller, a M base station driver, and the numbering of described M base station driver is designated as 1 respectively to M, and be designated as accordingly respectively the 1st base station driver ..., M base station driver;
Described M, N are positive integer;
Each base station driver by the optical signal line in the optoelectronic composite cable respectively with every group of monitor terminal in each terminal driver constitute the ring network topology and be connected the ring-like link of formation optical communication; M terminal driver in every group of monitor terminal constitutes the bus-network topology by the electrical signal line in the optoelectronic composite cable and connects, and constitutes the first telecommunication bus-type link; M base station driver constitutes the bus-network topology by the electrical signal line in the optoelectronic composite cable and connects, and constitutes the second telecommunication bus-type link; Described central controller is connected with the second telecommunication bus-type link;
The power line of described optoelectronic composite cable provides operating voltage for central controller, a M base station driver, a N*M+M terminal driver respectively.
As preferably, described terminal driver has four kinds of states, comprises light upstate, electric upstate, photoelectricity upstate, photoelectricity down state; There is a token to change in the ring-like link of described optical communication, when the terminal driver receives token, puts the light upstate, the overtime light down state of then putting at wheel; One beacon is arranged at sign in the first telecommunication bus-type link and the second telecommunication bus-type link, the terminal driver receives beacon, puts electric upstate, overtimely then puts electric down state; When the terminal driver is in the available or photoelectricity upstate of light, the transfer of data that receives to the ring-like link of optical communication, when the terminal driver is in electric upstate, transfer of data to the first telecommunication bus-type link; Described monitor terminal regularly produces the beacon of self, is transferred in the first telecommunication bus-type link, and receives the telecommunications mark and the data of the second telecommunication bus-type link; The central controller of described monitored base stations regularly produces token, is transferred to the ring-like link of optical communication, obtains the data that the first telecommunication bus-type link and the ring-like link transmission of optical communication are come from the second telecommunication bus-type link.
Above-mentioned optical signal line can be optical fiber.
The present invention compares in prior art, has following beneficial effect:
1. use communication and the power supply link of optoelectronic composite cable as monitoring network.Optoelectronic composite cable concentrates on cable and optical cable in the same cable, but both power supplies, and transmission of electric signals, but also transmitting optical signal are conveniently laid repeatedly backguy.
2. has standby redundant circuit.In optoelectronic composite cable, increased as standby light signal circuit, supply line, signal of telecommunication circuit,, maintained easily to substitute the circuit that disconnects or go wrong.
3. possess optical communication link and electronic communication link, the link of staggering of optical communication link cross-packet, the electronic communication link packet bus connects, and the link between light signal, the signal of telecommunication can be communicated by letter.In optical communication link, because intersecting, staggers link, makeing mistakes of the single node of a link can not influence the operate as normal of another link; And in electronic communication link, owing to be that bus-type connects, the fault of single node can not influence the work of other nodes; Can communicate by letter between light signal, the signal of telecommunication link in the same again node, when single node failure, thereafter optical link node can transmit back central controller to data through on the same group signal of telecommunication link node by the electronic communication link bus, has increased the fault-tolerance and the robustness of system.
4. optical communication link uses ring network topology connected mode, and electronic communication link uses bus-network topology connected mode.The ring network topology connected mode of using optical communication link can reduce the quantity of photoelectric conversion module to K+1 (monitored base stations needs 1, and K monitor terminal respectively needs 1).If with other topological connected modes, (1 monitored base stations needs K as star-like, K monitor terminal respectively needs 1), (monitored base stations needs 2 to chain, each needs 2 K monitor terminal) all need the individual photoelectric conversion module of 2 (K+1), bus then needs the K+1 optical-electric module, but also need to increase various beam split converging module, increase system complexity.Electronic communication link uses bus-network topology connected mode, can reduce the connection complexity, reduces the quantity that optical fiber connects, and has reduced the cost of system.(wherein, K is a positive integer.）
5. the existence of electronic communication link, the reliability that makes system is brought up to the ^N of Mf=(1-p^M) from Me=(1-p) ^ (N*M).Me is the chain link reliability of N*M node.When failure probability p was 5%, because the existence of electronic communication link monitors nodes to 64 and be divided into 32 groups (N), every group 2 (M), system reliability had increased greatly, from 3.75%(Me) rise to 92.30%(Mf).
Description of drawings
Fig. 1 is the flow chart based on the cable tunnel of optoelectronic composite cable monitoring link methodology of the embodiment of the invention;
Fig. 2 is the structural representation based on the cable tunnel monitoring system of optoelectronic composite cable of the embodiment of the invention;
Fig. 3 is the structural representation of the optoelectronic composite cable of the embodiment of the invention;
Fig. 4 is the structural representation of the terminal driver of the embodiment of the invention;
Fig. 5 is the structural representation of the monitored base stations of the embodiment of the invention.
Embodiment
As shown in Figure 1, a kind of cable tunnel monitoring link methodology based on optoelectronic composite cable may further comprise the steps:
Step 101: as shown in Figure 3, optoelectronic composite cable 100 is set, described optoelectronic composite cable 100 comprises optical signal line 1, electrical signal line 2, power line 3, and electrical signal line 2 can be coated togather with power line 3, constitutes cable 10; Can also be provided with standby optical signal line 1A, cable in stock 10A in the described optoelectronic composite cable 100, described cable in stock 10A comprises stand-by power supply line and standby electrical signal line; Described optical signal line 1, standby optical signal line are optical fiber;
Step 102: monitored base stations is set, and described monitored base stations comprises M base station driver, and the numbering of described M base station driver is designated as 1 respectively to M, and be designated as accordingly respectively the 1st base station driver ..., M base station driver; Monitor terminal is set, and described monitor terminal is the N group altogether, includes M terminal driver in every group, and the numbering of described M terminal driver is designated as M+1 to N*M+M respectively, and be designated as M+1 terminal driver accordingly respectively ..., N*M+M terminal driver; Wherein, M, N are positive integer;
Step 103: each base station driver by the optical signal line in the optoelectronic composite cable respectively with every group of monitor terminal in each terminal driver constitute the ring network topology and be connected, be specially, the first light-receiving port of the j base station driver of monitored base stations links to each other by the second smooth transmit port of optical signal line with the 1st group M+j terminal driver, and the second light-receiving port of the i*M+j terminal driver of i group is connected by the second smooth transmit port of optical signal line with (i+1) * M+j terminal driver of i+1 group; The second light-receiving port of the N*M+j terminal driver of N group is connected by the first smooth transmit port of optical signal line with the j base station driver of monitored base stations; Wherein, i=1,2 ..., N-1}, j={1,2 ..., M};
Step 104: M terminal driver in every group of monitor terminal constitutes the bus-network topology by the electrical signal line in the optoelectronic composite cable and connects, be specially, second signal of telecommunication main track port of M terminal driver in the g group monitor terminal links together by the electrical signal line of optoelectronic composite cable, second signal of telecommunication negative wire port also links together by the electrical signal line of optoelectronic composite cable, wherein, g={1,2,, N};
Step 105:M base station driver constitutes the bus-network topology by the electrical signal line in the optoelectronic composite cable and connects, the central controller of monitored base stations is connected with the bus-network topology link of base station driver, be specially: the signal of telecommunication main track port of the M in the monitored base stations base station driver links together by the electrical signal line of optoelectronic composite cable, the signal of telecommunication negative wire port of base station driver also links together by the electrical signal line of optoelectronic composite cable, first signal of telecommunication main track port of central controller is connected with the signal of telecommunication main track port of a base station driver by electrical signal line, and first signal of telecommunication negative wire port also is connected with the signal of telecommunication negative wire port of a base station driver by electrical signal line;
Step 106: the power line of described optoelectronic composite cable provides operating voltage for monitored base stations and monitor terminal, and promptly power line is connected with each electrical appliance.
As shown in Figure 2, a kind of cable tunnel monitoring system based on optoelectronic composite cable, this system has used the link methodology of present embodiment Fig. 1, has also used optoelectronic composite cable shown in Figure 3.
Native system comprises monitored base stations 4, monitor terminal 7, optoelectronic composite cable 100;
Described monitor terminal 7 is the N group altogether, includes M terminal driver 71 in every group, and the numbering of described M terminal driver 71 is designated as M+1 to N*M+M respectively, and be designated as M+1 terminal driver accordingly respectively ..., N*M+M terminal driver;
Described monitored base stations 4 comprises central controller 41, a M base station driver 42, and the numbering of described M base station driver 42 is designated as 1 respectively to M, and be designated as accordingly respectively the 1st base station driver ..., M base station driver;
Described M, N are positive integer;
Each base station driver by the optical signal line in the optoelectronic composite cable respectively with every group of monitor terminal in each terminal driver constitute the ring network topology and be connected, constitute the ring-like link of optical communication, be specially, the light-receiving port of the j base station driver of monitored base stations links to each other by the second smooth transmit port of optical signal line with the 1st group M+j terminal driver, and the second light-receiving port of the i*M+j terminal driver of i group is connected by the second smooth transmit port of optical signal line with (i+1) * M+j terminal driver of i+1 group; The second light-receiving port of the N*M+j terminal driver of N group is connected by the light transmit port of optical signal line with the j base station driver of monitored base stations; Wherein, i=1,2 ..., N-1}, j={1,2 ..., M};
M terminal driver in every group of monitor terminal constitutes the bus-network topology by the electrical signal line in the optoelectronic composite cable and connects, constitute the first telecommunication bus-type link, be specially, second signal of telecommunication main track port of M terminal driver in the g group monitor terminal links together by the electrical signal line of optoelectronic composite cable, and second signal of telecommunication negative wire port also links together by the electrical signal line of optoelectronic composite cable, wherein, g={1,2 ..., N};
M base station driver constitutes the bus-network topology by the electrical signal line in the optoelectronic composite cable and connects, constitute the second telecommunication bus-type link, described central controller is connected with the second telecommunication bus-type link, be specially, the described second telecommunication bus-type link is: the signal of telecommunication main track port of the M in the monitored base stations base station driver links together by the electrical signal line of optoelectronic composite cable, and the signal of telecommunication negative wire port of base station driver also links together by the electrical signal line of optoelectronic composite cable;
The power line of described optoelectronic composite cable provides operating voltage for central controller, a M base station driver, a N*M+M terminal driver respectively.
In the communication network of this monitoring system, the terminal driver uses as node.
As shown in Figure 4, described terminal driver 71 comprises second processor 711, the second opto-electronic conversion bus communication module 713, sensor interface module and actuator interface module 712; The second opto-electronic conversion bus communication module 713, sensor interface module and actuator interface module 712 are connected with second processor 711 respectively; The described second opto-electronic conversion bus communication module 713 is provided with the anodal port VCC of second source, the second grounding ports GND, the second smooth transmit port FRX, the second light-receiving port FTX, second signal of telecommunication main track port ES+, second signal of telecommunication negative wire port ES-.The described second opto-electronic conversion bus communication module 713, the data of being responsible for receiving and dispatching optical communication link and electronic communication link; Sensor interface module and actuator interface module 712 are responsible for gathering various sensing datas and the control of execution exercises device; Described second processor 711 is responsible for uploading the sensing data that is collected to the upper level node, carries out the control command that central controller issues, and transmits data to the next stage node.
As shown in Figure 5, described central controller 41 comprises first processor 411, the first opto-electronic conversion bus communication module 413, GPRS interface module and ethernet interface module 412; The first opto-electronic conversion bus communication module 413, GPRS interface module and ethernet interface module 412 are connected with first processor 411 respectively; The described first opto-electronic conversion bus communication module 413 is provided with the first positive source port VCC, the first grounding ports GND, first signal of telecommunication main track port ES+, first signal of telecommunication negative wire port ES-.Certainly, described base station driver 42 also is provided with positive source port VCC, grounding ports GND, signal of telecommunication main track port ES+, signal of telecommunication negative wire port ES-, light transmit port FRX, light-receiving port FTX.The described first opto-electronic conversion bus communication module 413, the data of being responsible for receiving and dispatching optical communication link and electronic communication link; Described GPRS interface module and ethernet interface module 412 are responsible for communicating by letter with GPRS network and IP Ethernet; Described first processor 411, be responsible for converging the sensing data of monitor terminal to central controller, send out by GPRS and/or IP Ethernet, and receive the control information that GPRS and/or IP Ethernet send, driver issues control command to the base station, produces the network state that token is safeguarded optical communication link simultaneously.
Described terminal driver has four kinds of states, comprises light upstate, electric upstate, photoelectricity upstate, photoelectricity down state; There is a token to change in the ring-like link of described optical communication, when the terminal driver receives token, puts the light upstate, the overtime light down state of then putting at wheel; One beacon is arranged at sign in the first telecommunication bus-type link and the second telecommunication bus-type link, the terminal driver receives beacon, puts electric upstate, overtimely then puts electric down state; When the terminal driver is in the available or photoelectricity upstate of light, the transfer of data that receives to the ring-like link of optical communication, when the terminal driver is in electric upstate, transfer of data to the first telecommunication bus-type link.
Described monitor terminal regularly produces the beacon of self, is transferred in the first telecommunication bus-type link, and receives the telecommunications mark and the data of the second telecommunication bus-type link.Described beacon comprises current letter label, and it is and the unique number of node, and this beacon sends to electronic communication link, and other node receives this beacon and can use to determine bus links, and the intact beacon of the every transmission of monitor terminal can increase progressively current letter label.
The central controller of described monitored base stations regularly produces token, is transferred to the ring-like link of optical communication, obtains the data that the first telecommunication bus-type link and the ring-like link transmission of optical communication are come from the second telecommunication bus-type link.Described token comprises current token number, a last circulation token number, this token sends to optical communication link, each node wheel changes this token, can determine that in the time that token can be received link is normal, when central controller receives token, a last circulation token number is updated to current token number and increases progressively current token number, overtimely do not receive token then to go up a circulation token number constant but increase progressively current token number.
Monitor terminal transmits its data by available optical communication link and electronic communication link and returns monitored base stations, accepts the control command of monitored base stations, and transmits the data that received and arrive other monitor terminal.Monitored base stations converges the data of all monitor terminals, is transferred to GPRS or IP Ethernet, receives the control command that sends and is issued to monitor terminal.The network normal operation of monitoring system.
The communication means of the cable monitoring system of present embodiment has adopted based on monitoring base station 4, and monitor terminal 7 is the liaison mode of assisting.
The concrete installation method of present embodiment is as follows:
1. under the certain situation of node quantity Nm=N*M, determine N, M makes:
A) M＜=min{Le, Lf}/e, common Le=1.2Km, Lf=20Km, has M＜=12 this moment by e＜0.1Km/.
B) time delay Td=N* (Fl/W+Tp) less.Wherein Fl is a frame length, and W is a bandwidth, and Tp is a processing delay.Common Fl=32*8b, W=115200bps, Tp=100us, Td＜1s has N＜500. this moment
C) reliability Mf=(1-p^M) ^N is bigger.Wherein p is the not normal probability of single node.Common p=0.05, Wf〉90%.M is big more, and Mf is big more.
D) optical fiber consumption 4*M is less.
E) opto-electronic conversion bus communication module 413 quantity M are less in the monitored base stations 4.
F) the quantities 2M of the welding of standby optical fiber is less in the project installation.
To top several constraints, generally desirable M=2 to 4, this moment, reliability, optical fiber cost and welding quantities all had one well to trade off for the time delay of system.
2. in the site position optoelectronic composite cable is disconnected when installing,,, be free of attachment to the then welding again of optical fiber of node by the fused fiber splice wire jumper that is connected to node is connected to node for optical fiber; Then node is parallel on it for power line, optical signal line, electrical signal line.Gap is used the splice tray sealing, and the fused fiber splice place, power line and the protection of holding wire junction are therein.So far network topology has made up and has finished.
Number of packet M in the electronic communication link of present embodiment in theory without limits, the maximum communication distance of bus and optical communication single-hop communication distance and layout density restriction during concrete enforcement, computing formula is that M is smaller or equal to min{Le, Lf}/e, common Le=1.2Km, Lf=20Km, e＜0.1Km/.
The number of packet N of optical communication link is limited by bandwidth or time delay and reliability when specifically implementing in theory without limits, and computing formula time delay Td=N* (Fl/W+Tp).Wherein Fl is a frame length, and W is a bandwidth, and Tp is a processing delay.The ^N of reliability Mf=(1-p^M).Wherein p is the not normal probability of single node.Common Fl=32*8b, W=115200bps, Tp=100us, p=0.05.Td?<?5s，?Wf?>?90%。
The foregoing description is that the present invention is comparatively preferably a kind of, and simple change that those skilled in the art make in protection scope of the present invention or replacement all drop in protection scope of the present invention.
Claims (10)
1. the cable tunnel monitoring link methodology based on optoelectronic composite cable is characterized in that, may further comprise the steps:
Optoelectronic composite cable is set, and described optoelectronic composite cable comprises optical signal line, electrical signal line and power line;
Monitored base stations is set, and described monitored base stations comprises M base station driver, and the numbering of described M base station driver is designated as 1 respectively to M, and be designated as accordingly respectively the 1st base station driver ..., M base station driver; Monitor terminal is set, and described monitor terminal is the N group altogether, includes M terminal driver in every group, and the numbering of described M terminal driver is designated as M+1 to N*M+M respectively, and be designated as M+1 terminal driver accordingly respectively ..., N*M+M terminal driver; Wherein, M, N are positive integer;
Each base station driver by the optical signal line in the optoelectronic composite cable respectively with every group of monitor terminal in each terminal driver constitute the ring network topology and be connected; M terminal driver in every group of monitor terminal constitutes the bus-network topology by the electrical signal line in the optoelectronic composite cable and connects; M base station driver constitutes the bus-network topology by the electrical signal line in the optoelectronic composite cable and connects; The central controller of monitored base stations is connected with the bus-network topology link of base station driver;
The power line of described optoelectronic composite cable provides operating voltage for monitored base stations and monitor terminal.
2. the cable tunnel monitoring link methodology based on optoelectronic composite cable as claimed in claim 1, it is characterized in that, among the step C, ring network topology connected mode is specially: the light-receiving port of the j base station driver of monitored base stations links to each other by the second smooth transmit port of optical signal line with the 1st group M+j terminal driver, and the second light-receiving port of the i*M+j terminal driver of i group is connected by the second smooth transmit port of optical signal line with (i+1) * M+j terminal driver of i+1 group; The second light-receiving port of the N*M+j terminal driver of N group is connected by the light transmit port of optical signal line with the j base station driver of monitored base stations; Wherein, i=1,2 ..., N-1}, j={1,2 ..., M}.
3. the cable tunnel monitoring link methodology based on optoelectronic composite cable as claimed in claim 1, it is characterized in that, among the described step C, the bus-network topology connected mode of terminal driver is specially: second signal of telecommunication main track port of M terminal driver in the g group monitor terminal links together by the electrical signal line of optoelectronic composite cable, and second signal of telecommunication negative wire port also links together by the electrical signal line of optoelectronic composite cable, wherein, g={1,2 ..., N}; The bus-network topology connected mode of base station driver is specially: the signal of telecommunication main track port of the M in the monitored base stations base station driver links together by the electrical signal line of optoelectronic composite cable, and the signal of telecommunication negative wire port of base station driver also links together by the electrical signal line of optoelectronic composite cable.
4. as each described cable tunnel monitoring link methodology of claim 1-3, it is characterized in that described optoelectronic composite cable also comprises standby optical signal line, standby electrical signal line and stand-by power supply line based on optoelectronic composite cable.
5. the cable tunnel monitoring system based on optoelectronic composite cable is characterized in that this system comprises monitored base stations, monitor terminal, optoelectronic composite cable;
Described optoelectronic composite cable comprises optical signal line, electrical signal line and power line;
Described monitor terminal is the N group altogether, includes M terminal driver in every group, and the numbering of described M terminal driver is designated as M+1 to N*M+M respectively, and be designated as M+1 terminal driver accordingly respectively ..., N*M+M terminal driver;
Described monitored base stations comprises central controller, a M base station driver, and the numbering of described M base station driver is designated as 1 respectively to M, and be designated as accordingly respectively the 1st base station driver ..., M base station driver;
Described M, N are positive integer;
Each base station driver by the optical signal line in the optoelectronic composite cable respectively with every group of monitor terminal in each terminal driver constitute the ring network topology and be connected the ring-like link of formation optical communication; M terminal driver in every group of monitor terminal constitutes the bus-network topology by the electrical signal line in the optoelectronic composite cable and connects, and constitutes the first telecommunication bus-type link; M base station driver constitutes the bus-network topology by the electrical signal line in the optoelectronic composite cable and connects, and constitutes the second telecommunication bus-type link; Described central controller is connected with the second telecommunication bus-type link;
The power line of described optoelectronic composite cable provides operating voltage for central controller, a M base station driver, a N*M+M terminal driver respectively.
6. the cable tunnel monitoring system based on optoelectronic composite cable as claimed in claim 5, it is characterized in that, the connected mode of the ring-like link of described optical communication is: the light-receiving port of the j base station driver of monitored base stations links to each other by the second smooth transmit port of optical signal line with the 1st group M+j terminal driver, and the second light-receiving port of the i*M+j terminal driver of i group is connected by the second smooth transmit port of optical signal line with (i+1) * M+j terminal driver of i+1 group; The second light-receiving port of the N*M+j terminal driver of N group is connected by the light transmit port of optical signal line with the j base station driver of monitored base stations; Wherein, i=1,2 ..., N-1}, j={1,2 ..., M}.
7. the cable tunnel monitoring system based on optoelectronic composite cable as claimed in claim 5, it is characterized in that, the described first telecommunication bus-type link is: second signal of telecommunication main track port of M terminal driver in the g group monitor terminal links together by the electrical signal line of optoelectronic composite cable, second signal of telecommunication negative wire port also links together by the electrical signal line of optoelectronic composite cable, wherein, g={1,2,, N}; The described second telecommunication bus-type link is: the signal of telecommunication main track port of the M in the monitored base stations base station driver links together by the electrical signal line of optoelectronic composite cable, and the signal of telecommunication negative wire port of base station driver also links together by the electrical signal line of optoelectronic composite cable.
8. the cable tunnel monitoring system based on optoelectronic composite cable as claimed in claim 5 is characterized in that,
Described central controller comprises first processor, the first opto-electronic conversion bus communication module, GPRS interface module, ethernet interface module; The first opto-electronic conversion bus communication module, GPRS interface module, ethernet interface module are connected with first processor respectively; The described first opto-electronic conversion bus communication module is provided with the first positive source port, first grounding ports, first signal of telecommunication main track port, first signal of telecommunication negative wire port;
Described terminal driver comprises second processor, the second opto-electronic conversion bus communication module, sensor interface module, actuator interface module; The second opto-electronic conversion bus communication module, sensor interface module, actuator interface module are connected with second processor respectively; The described second opto-electronic conversion bus communication module is provided with the anodal port of second source, second grounding ports, the second smooth transmit port, the second light-receiving port, second signal of telecommunication main track port, second signal of telecommunication negative wire port.
9. the cable tunnel monitoring system based on optoelectronic composite cable as claimed in claim 5 is characterized in that described terminal driver has four kinds of states, comprises light upstate, electric upstate, photoelectricity upstate, photoelectricity down state; There is a token to change in the ring-like link of described optical communication, when the terminal driver receives token, puts the light upstate, the overtime light down state of then putting at wheel; One beacon is arranged at sign in the first telecommunication bus-type link and the second telecommunication bus-type link, the terminal driver receives beacon, puts electric upstate, overtimely then puts electric down state; When the terminal driver is in the available or photoelectricity upstate of light, the transfer of data that receives to the ring-like link of optical communication, when the terminal driver is in electric upstate, transfer of data to the first telecommunication bus-type link; Described monitor terminal regularly produces the beacon of self, is transferred in the first telecommunication bus-type link, and receives the telecommunications mark and the data of the second telecommunication bus-type link; The central controller of described monitored base stations regularly produces token, is transferred to the ring-like link of optical communication, obtains the data that the first telecommunication bus-type link and the ring-like link transmission of optical communication are come from the second telecommunication bus-type link.
10. as each described cable tunnel monitoring system of claim 5-9, it is characterized in that described optoelectronic composite cable also comprises standby optical signal line, standby electrical signal line and stand-by power supply line based on optoelectronic composite cable.
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