CN205490540U - Cable tunnel monitored control system based on LTE wireless broadband - Google Patents
Cable tunnel monitored control system based on LTE wireless broadband Download PDFInfo
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- CN205490540U CN205490540U CN201620045771.7U CN201620045771U CN205490540U CN 205490540 U CN205490540 U CN 205490540U CN 201620045771 U CN201620045771 U CN 201620045771U CN 205490540 U CN205490540 U CN 205490540U
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Abstract
The utility model discloses a cable tunnel monitored control system based on LTE wireless broadband, include monitored control system host computer, the LTE system core network equipment, reveal cable and a plurality of sensor, the sensor be used for gathering the state information in the tunnel, monitored control system host computer, the LTE system core network equipment and to reveal the cable consecutive, the sensor include the ambient condition sensor, for fire control sensor, level sensor, harmful gas sensor, access & exit theftproof and detect the sensor in at least a. This cable tunnel monitored control system based on LTE wireless broadband easy to carry out, the expansibility is strong, and the signal coverage rate is high, and is capacious.
Description
Technical field
This utility model relates to a kind of cable tunnel based on LTE WiMAX monitoring system.
Background technology
Along with the improving constantly of urban power load density, in addition urban planning are more and more stricter to the coherence request of power transmission line corridor.The highest form that cable tunnel lays as ultra-high-tension power transmission line, because of features such as its environmental friendliness, section transmission capacity and feeder number are big, is the most increasingly widely used in the power grid construction of large-and-medium size cities.
In the high tension cable Tunnel Engineering put into operation, and detection antitheft to I haven't seen you for ages configuration surroundings condition, fire-fighting, water level, harmful gas detection, gateway etc. a series of sensors, in units of region, configure some synthetical collection devices gather the information of these sensors, and by some harvesters system host by wired system transmission to main control room, for background monitoring after Data Management Analysis.
Owing to tunnel has long-distance distributed, causing number of sensors the hugest, synthetical collection device is also required to configure in a large number.Actual according to engineering, sensor, the control signal cable of harvester and optical cable investment have been even more than sensor and harvester itself, and construction efficiency is low.
Current cable tunnel monitor supervision platform has a following defect:
1. sensor and harvester all by convergence to the host process decision-making of master control room, inefficiency redundancy is low.
2. wiring amount is big, and it is high that affiliated facility accounts for gross investment ratio, and repair and maintenance workload is big.
3. function expansibility is poor, if sensor to be increased newly or harvester, needs new route and installs communication equipment, constraining opening and the autgmentability of system.
4. sensor and harvester are owing to being all uploaded to master control room main frame, lack information sharing between sensor, can not play a role, be unsatisfactory for the requirement of power information redundancy, constrain Internet of Things application in cable tunnel after main frame or station level communication failure.
Therefore, it is necessary to design a kind of novel cable tunnel communication system.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of cable tunnel based on LTE WiMAX monitoring system, and this cable tunnel based on LTE WiMAX monitoring system is easy to implement, and autgmentability is strong, and signal coverage rate is high, and capacity is big.
The technical solution of utility model is as follows:
A kind of cable tunnel based on LTE WiMAX monitoring system, including monitoring system main frame, LTE system core network device, reveals cable and multiple sensor；Described sensor is for gathering the status information in tunnel；
Monitoring system main frame, LTE system core network device are sequentially connected with revealing cable；Reveal cable and send wireless signal；Reveal cable and be provided with the fluting being easy to disseminate wireless signal；Sensor is connected with revealing cable radio communication；
Described sensor includes that environmental conditions ensor (such as Temperature Humidity Sensor), fire-fighting sensor are (such as cigarette propagated sensation sensor, the sensor etc. of sensing naked light), level sensor, harmful gas sensor (such as nitric oxide sensor etc.), gateway be antitheft and at least one in detection sensor (human body sensor, such as infrared sensor etc.).
Cable tunnel monitoring system also includes controller and harvester；Reveal cable to be connected with controller and the harvester radio communication of cable tunnel monitoring system；Described controller is connected with the harvester of cable tunnel monitoring system.
Tunnel whole process lays single leaky cable.
The working frequency range 223.025-235Mhz of cable tunnel communication system, uses TDD duplex mode, radio-frequency channel bandwidth 8.5Mhz.
Acquisition controlling is cable tunnel monitoring system, and harvester refers to that gathering cable tunnel runs initial data, and controller refers to collect multiple harvester data and be controlled by.
LTE system core network device is deployed in high voltage substation communications equipment room or main control room, and LTE system core network device is integrated with the NE supporting SGSN&MME, GGSN&S/P-GW, CG, DNS, HLR&HSS and PCRF.
LTE system core network device has the interface of energy direct-coupling leaky cable, it is also equipped with optical fiber interface, described optical fiber interface zooms out device or distributed base station RRU+BBU for being zoomed out by signal to far end radio frequency, it is coupled to another root leakage coaxial cable, the information that completes relaying in leaky cable by remote radio device or distributed base station RRU+BBU.I.e. LTE system core network device can be with being directly connected with leakage coaxial cable, it is also possible to is connected with leaky cable by optical fiber interface.
Revealing cable is discrete type leakage coaxial cable.It is divided into multistage the most along its length, slotted section and do not have slotted section to be arranged alternately.
LTE system core network device and the communication connection of cable tunnel monitoring system.
230M is that Ministry of Industry and Information authorizes the special frequency ranges of industry such as electric power, belong to valuable low-frequency range resource, the ripe carrier of LTE standard is for Ge great operator 4G network, along with the power system development to wireless communication needs, it is necessary to superior LTE is introduced electrical network automation field.
LTE is the abbreviation of English Long Term Evolution.LTE is also referred to as 3.9G by popular, has the data download capabilities of 100Mbps, is considered from 3G to the mainstream technology of 4G evolution.It improves and enhances the aerial access technology of 3G, uses OFDM and MIMO as the sole criterion of its wireless network evolution.The peak rate of descending 100Mbit/s and up 50Mbit/s can be provided under 20MHz spectral bandwidth.
System global structure figure sees Fig. 1, and LTE core network equipment is the hinge of whole system, and Ethernet access " cable tunnel monitoring system " is passed through in its one end；The communication that the other end completes the underlying device such as sensor, harvester by leaky cable exchanges.
Owing to cable tunnel is relative to other industrial buildings, its quantity of information is little and terminal is fixed, therefore low side compact LTE system core network device is selected, this LTE core network equipment is mainly responsible for the mobile management of chain of command, manage including user's context and mobile status, distributing user temporary identifications, authentication management etc..Compact core net is deployed in high voltage substation communications equipment room or main control room according to power system feature, equipment of the core network rack answers multiple network elements such as integrated support SGSN&MME, GGSN&S/P-GW, CG, DNS, HLR&HSS and PCRF, to improve the integrated level of equipment of the core network, reduce machine room to take up an area, reduce equipment cost.
Core net sets；Carry multiple interfaces pattern, leakage coaxial cable described in the utility model can be coupled directly to, also possess optical fiber interface to zoom out to far-end distributed base station RRU+BBU, be coupled to described leakage coaxial cable by RRU+BBU, the information that completes transmission in leaky cable.
Leaky cable is by its slotted eye outwardly radiated electromagnetic wave thus exchanges information, is arranged in top layer cable bearer outer, cable tunnel, completes transmission and the wireless transmit of signal, and tunnel whole process lays single leaky cable, it is achieved tunnel radio communication all standing.All IED equipment in tunnel( Intelligent electronic device )As sensor, controller and harvester all can access " cable tunnel monitoring system " by the wireless signal that leaky cable disseminates by equipment of the core network.
" cable tunnel monitoring system " refers to the most a set of computer supervisory control system, is generally divided into station level equipment and process layer devices.Wherein station level equipment contains various processing servers, communication interface server, by with aforementioned equipment of the core network two-way exchange information realization and process layer devices combined network communication, the most at last the information concentrated collection of the smart machine such as all the sensors, controller the system of centralized decision-making in cable tunnel；The common configuration of process layer devices generally comprises: video monitoring, fire alarm, draining HVAC, gaseous environment, security protection etc., they complete measurement and the control of essential information, such as obtain video information or start exhaust system etc., process layer devices obtains the wireless signal distributed from leakage coaxial cable by embedded or external CPE (wireless terminal accessing device), after two-way exchange, transmission is to aforesaid equipment of the core network therewith, and above see off control layer analysis decision-making or execution down order.
The type selecting of leaky cable
This utility model fully takes into account the discreteness of cable tunnel monitored object, the distributed leakage coaxial cable that elite insertion loss is extremely low, i.e. leakage coaxial cable is had the local fluting of information requirement in cable tunnel by coaxial cable, form the discrete type leakage coaxial cable corresponding to monitored object, in cable tunnel, theoretical loss is about 0.25dB, and its structure is as shown in Figure 2.
This utility model uses the leakage coaxial cable designed for special frequency range, under the frequency multi-band environment of lte230M, the generally loss of fixed frequency leaky cable considers diectric attenuation+attenuation+conductor self decay, attenuation constant α of leakage coaxial cable can be taken as 2.2dBkm, system loss is α max.=α s+M=α × L+Lc+M then L=(α max.-Lc-M) ÷ α, as a example by 230Mhz, considering surplus M=45dB, coupling loss Lc=75, the when of design maximum system loss α max.=135dB, draw L=(135dB-75dB-45dB) ÷ 2.2dB/KM=6.82km；
By above theory analysis, the theoretical effectively coverage distance of monomer system is about 6.82km, closing dome structure itself in view of tunnel and leaky cable coupling performance is helped increasing effect, actual transmissions Distance Theory value, up to about 7km, can meet the requirement of cable tunnel, most cities.
Specifications
Utility model works frequency range 223.025-235Mhz, use TDD duplex mode, radio-frequency channel bandwidth 8.5Mhz, the online user number of maximum 2000 information points can be supported, user refers to that aforesaid controller, sensor etc. need the terminal unit of radio communication, design sensitivity-120dB, terminal cpe side hardware circuit solution 1.85Mbps.Can meet all process layer devices in cable tunnel monitoring system to transmission bandwidth, quality and the requirement of sensitivity.
For the cable tunnel that distance is longer, owing to one section of transmission range revealing cable is limited, need to use one or more remote radio device to relay, see Fig. 3, remote radio device is arranged in nucleus equipment (such as combiner etc.) wire transmission apart from interior, remote radio device can also be connected with nucleus equipment by optical fiber, and the power supply of remote radio device takes from tunnel intraoral illumination power supply, completes signal relaying in leaky cable.
Beneficial effect:
Cable tunnel based on LTE WiMAX of the present utility model monitoring system is a communication system platform, has the advantage that
(1) support that cable tunnel acquisition layer realizes information and uploads shared with information exchange, holder networking application in cable tunnel.
(2) native system solves the radio communication covering needed for cable tunnel monitoring system with low cost.
(3) use the LTE core network equipment of 230M frequency range, be specifically designed to the cable tunnel radio communication of power system.
LTE230 ratifies the special frequency range of the 230M to systems such as electric power based on Ministry of Industry and Information, low-frequency transmission distance, safety and other wireless systems will not cause frequency range electromagnetic interference.
(4) in the case of selecting 230Mhz frequency leakage coaxial cable surely, use the discrete fluting way of this utility model agreement, so that leakage coaxial cable transmission range is up to 7km, such covering radius is highly suitable as the communications platform of cable tunnel monitoring system, takes full advantage of the power industry special low-frequency resources of distinctive 230M.
(5), the system expandability is strong, capacity is big, meets the multiple auxiliary monitoring system of large tunnel to real-time communication, the requirement of safety and reliability.
System of the present utility model can further genralrlization in city integrated piping lane.Underground pipe gallery refers at Urban Underground for concentrating the public tunnel laying the municipal pipelines such as electric power, communication, radio and television, feedwater, draining, heating power, combustion gas.
Accompanying drawing explanation
Fig. 1 is the population structure schematic diagram of cable tunnel based on LTE WiMAX monitoring system；
Fig. 2 is the structural representation of leaky cable.
Fig. 3 is the population structure schematic diagram of cable tunnel based on the LTE WiMAX monitoring system possessing radio frequency remoto module.
Detailed description of the invention
Below with reference to the drawings and specific embodiments, this utility model is described in further details:
Embodiment 1:
Such as Fig. 1-3, a kind of cable tunnel based on LTE WiMAX monitoring system, including monitoring system main frame, LTE system core network device, reveal cable and multiple sensor；Described sensor is for gathering the status information in tunnel；
Monitoring system main frame, LTE system core network device are sequentially connected with revealing cable；Reveal cable and send wireless signal；Reveal cable and be provided with the fluting being easy to disseminate wireless signal；Sensor is connected with revealing cable radio communication；
Described sensor includes that environmental conditions ensor (such as Temperature Humidity Sensor), fire-fighting sensor are (such as cigarette propagated sensation sensor, the sensor etc. of sensing naked light), level sensor, harmful gas sensor (such as nitric oxide sensor etc.), gateway be antitheft and at least one in detection sensor (human body sensor, such as infrared sensor etc.).
Cable tunnel monitoring system also includes controller and harvester；Reveal cable to be connected with controller and the harvester radio communication of cable tunnel monitoring system；Described controller is connected with the harvester of cable tunnel monitoring system.
Tunnel whole process lays single leaky cable.
The working frequency range 223.025-235Mhz of cable tunnel communication system, uses TDD duplex mode, radio-frequency channel bandwidth 8.5Mhz.
Acquisition controlling is cable tunnel monitoring system, and harvester refers to that gathering cable tunnel runs initial data, and controller refers to collect multiple harvester data and be controlled by.
LTE system core network device is deployed in high voltage substation communications equipment room or main control room, and LTE system core network device is integrated with the NE supporting SGSN&MME, GGSN&S/P-GW, CG, DNS, HLR&HSS and PCRF.
LTE system core network device has the interface of energy direct-coupling leaky cable, it is also equipped with optical fiber interface, described optical fiber interface zooms out device or distributed base station RRU+BBU for being zoomed out by signal to far end radio frequency, it is coupled to another root leakage coaxial cable, the information that completes relaying in leaky cable by remote radio device or distributed base station RRU+BBU.I.e. LTE system core network device can be with being directly connected with leakage coaxial cable, it is also possible to is connected with leaky cable by optical fiber interface.
Revealing cable is discrete type leakage coaxial cable.It is divided into multistage the most along its length, slotted section and do not have slotted section to be arranged alternately；LTE system core network device and the communication connection of cable tunnel monitoring system.
Claims (5)
1. cable tunnel based on a LTE WiMAX monitoring system, it is characterised in that include monitoring system main frame, LTE
System core network equipment, leakage cable and multiple sensor；Described sensor is for gathering the state in tunnel
Information；
Monitoring system main frame, LTE system core network device are sequentially connected with revealing cable；Reveal cable and send wireless communication
Number；Reveal cable and be provided with the fluting being easy to disseminate wireless signal；Sensor is connected with revealing cable radio communication；
Described sensor include environmental conditions ensor, fire-fighting sensor, level sensor, harmful gas sensor,
Gateway is antitheft and detects at least one in sensor；
Cable tunnel monitoring system also includes controller and harvester；Reveal the controller of cable and cable tunnel monitoring system
Connect with harvester radio communication；Described controller is connected with the harvester of cable tunnel monitoring system.
Cable tunnel based on LTE WiMAX the most according to claim 1 monitoring system, it is characterised in that tunnel is complete
Journey lays single leaky cable.
Cable tunnel based on LTE WiMAX the most according to claim 1 monitoring system, it is characterised in that LTE system
Core network device is deployed in high voltage substation communications equipment room or main control room, and LTE system core network device is integrated with
Support the NE of SGSN&MME, GGSN&S/P-GW, CG, DNS, HLR&HSS and PCRF.
Cable tunnel based on LTE WiMAX the most according to claim 3 monitoring system, it is characterised in that
LTE system core network device has the interface of energy direct-coupling leaky cable, is also equipped with optical fiber interface, described optical fiber
Interface zooms out device or distributed base station RRU+BBU, by remote radio device or distribution for being zoomed out by signal to far end radio frequency
Formula base station RRU+BBU is coupled to another root leakage coaxial cable, the information that completes relaying in leaky cable.
5. according to cable tunnel based on the LTE WiMAX monitoring system described in any one of claim 1-4, its feature
Being, revealing cable is discrete type leakage coaxial cable.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620045771.7U CN205490540U (en) | 2016-01-18 | 2016-01-18 | Cable tunnel monitored control system based on LTE wireless broadband |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620045771.7U CN205490540U (en) | 2016-01-18 | 2016-01-18 | Cable tunnel monitored control system based on LTE wireless broadband |
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| CN205490540U true CN205490540U (en) | 2016-08-17 |
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| CN201620045771.7U Expired - Fee Related CN205490540U (en) | 2016-01-18 | 2016-01-18 | Cable tunnel monitored control system based on LTE wireless broadband |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020124503A1 (en) * | 2018-12-20 | 2020-06-25 | 舍弗勒技术股份两合公司 | Detection system and wind driven generator |
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- 2016-01-18 CN CN201620045771.7U patent/CN205490540U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020124503A1 (en) * | 2018-12-20 | 2020-06-25 | 舍弗勒技术股份两合公司 | Detection system and wind driven generator |
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Granted publication date: 20160817 |
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| CF01 | Termination of patent right due to non-payment of annual fee |