CN205490539U - A wireless communication device for cable tunnel monitored control system - Google Patents
A wireless communication device for cable tunnel monitored control system Download PDFInfo
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- CN205490539U CN205490539U CN201620044963.6U CN201620044963U CN205490539U CN 205490539 U CN205490539 U CN 205490539U CN 201620044963 U CN201620044963 U CN 201620044963U CN 205490539 U CN205490539 U CN 205490539U
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- 238000004891 communication Methods 0.000 title claims abstract description 53
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Abstract
The utility model discloses a wireless communication device for cable tunnel monitored control system, include 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, the LTE system core network equipment with reveal the cable and link to each other, reveal the cable and send radio signal, it is equipped with the fluting of being convenient for spread radio signal on the cable to reveal, the sensor with reveal cable radio communication and be connected. Still include controller and collector, controller and collector link to each other, the collector with reveal cable radio communication and be connected. The LTE system core network equipment and cable tunnel monitored control system's host computer communication connection. This a wireless communication device for cable tunnel monitored control system 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 radio communication device for cable tunnel monitoring system.
Background technology
Along with the improving constantly of urban power load density, the in addition urban planning concordance to power transmission line corridor
Require more and more stricter.The highest form that cable tunnel lays as ultra-high-tension power transmission line, because of its environmental friendliness,
Section transmission capacity and the feature such as feeder number is big, be the most increasingly widely used in large-and-medium size cities power grid construction
In.
In the high tension cable Tunnel Engineering put into operation, to I haven't seen you for ages configuration surroundings condition, fire-fighting, water level, harmful
Gas detecting, gateway be antitheft and a series of sensors of detection etc., configure in units of region some comprehensively
Harvester gathers the information of these sensors, and is transmitted to master control by wired system by some harvesters
The system host of room processed, for background monitoring after Data Management Analysis.
Owing to tunnel has long-distance distributed, cause number of sensors the hugest, synthetical collection device
It is also required to configure in a large number.Actual according to engineering, sensor, the control signal cable of harvester and optical cable are invested very
To having exceeded sensor and harvester itself, 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
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,
Constrain 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, are leading
Can not play a role after machine or station level communication failure, be unsatisfactory for the requirement of power information redundancy, constrain Internet of Things
Net application in cable tunnel.
Therefore, it is necessary to design a kind of novel cable tunnel radio communication device.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of wireless for cable tunnel monitoring system
Communicator, this radio communication device being used for cable tunnel monitoring system is easy to implement, and autgmentability is strong, signal
Coverage rate is high, and capacity is big.
The technical solution of utility model is as follows:
A kind of radio communication device for cable tunnel monitoring system, including LTE system core network device,
Reveal cable and multiple sensor；Described sensor is for gathering the status information in tunnel；
LTE system core network device is connected with revealing cable；Reveal cable and send wireless signal；Reveal cable
It is provided with the fluting being easy to disseminate wireless signal；Sensor is connected with revealing cable radio communication；
Described sensor includes environmental conditions ensor, fire-fighting sensor, level sensor, harmful gas
Sensor, gateway be antitheft and at least one in detection sensor；
Environmental conditions ensor includes Temperature Humidity Sensor；Fire-fighting sensor includes that cigarette propagated sensation sensor and sensing are bright
The sensor of fire；
Harmful gas sensor is nitric oxide sensor；
Gateway is antitheft and detection sensor includes the infrared sensor for sensing human body and photographic head；
Reveal cable to be also connected with controller or the harvester radio communication of cable tunnel monitoring system；Controller with
Harvester is connected.Harvester is with radio communication function.
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, control
Device processed 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, LTE system core
The heart network equipment is integrated with the net supporting SGSN&MME, GGSN&S/P-GW, CG, DNS, HLR&HSS and PCRF
Network unit.
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 for being zoomed out by signal to far end radio frequency, passes through
Remote radio device or distributed base station RRU+BBU are coupled to another root leakage coaxial cable, and the information that completes is in leakage
Relaying in cable.I.e. LTE system core network device can be with being directly connected with leakage coaxial cable, it is also possible to
It 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 is arranged alternately
LTE system core network device is connected with the main-machine communication of cable tunnel monitoring system.
230M is that Ministry of Industry and Information authorizes the special frequency ranges of industry such as electric power, belongs to valuable low-frequency range resource, LTE standard
Ripe carrier, for Ge great operator 4G network, along with the power system development to wireless communication needs, has
Necessary by superior LTE introducing 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.At 20MHz
The peak rate of descending 100Mbit/s and up 50Mbit/s can be provided under spectral bandwidth.
System global structure figure sees Fig. 1, and LTE core network equipment is the hinge of whole system, and its one end is passed through
Ethernet access " cable tunnel monitoring system "；The other end completes sensor, collection by leaky cable
The communication exchange of the underlying device such as device.
Owing to cable tunnel is relative to other industrial buildings, its quantity of information is little and terminal is fixed, and therefore selects
Low side compact LTE system core network device, this LTE core network equipment is mainly responsible for the mobility pipe of chain of command
Reason, manages including user's context and mobile status, distributing user temporary identifications, authentication management etc..Tightly
Core net of gathering is deployed in high voltage substation communications equipment room or main control room according to power system feature, and core net sets
Multiple nets such as integrated support SGSN&MME, GGSN&S/P-GW, CG, DNS, HLR&HSS and PCRF answered by standby host cabinet
Unit, to improve the integrated level of equipment of the core network, reduces machine room and takes up an area, reduce equipment cost.
Equipment of the core network carries multiple interfaces pattern, can couple directly to leakage described in the utility model same
Shaft cable, also possesses optical fiber interface and zooms out to far-end distributed base station RRU+BBU, be coupled to institute by RRU+BBU
The leakage coaxial cable stated, 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 cable tunnel top layer
Cable bearer outer, completes transmission and the wireless transmit of signal, and tunnel whole process lays single leaky cable., real
Existing tunnel radio communication all standing.All IED equipment in tunnel(intelligent electronic device)Such as sensor, controller
All " cable tunnel prison can be accessed by the wireless signal that leaky cable disseminates by equipment of the core network with harvester
Ore-controlling Role ".
" 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 front
State equipment of the core network two-way exchange information realization and process layer devices combined network communication, all in cable tunnel the most at last
The information concentrated collection of the smart machine such as sensor, controller the system of centralized decision-making；Process layer devices is common
Configuration generally comprises: video monitoring, fire alarm, draining HVAC, gaseous environment, security protection etc., they complete
The measurement of essential information and control, such as, obtain video information or start exhaust system etc., and process layer devices passes through
Embedded or external CPE (wireless terminal accessing device) obtains the wireless communication distributed from leakage coaxial cable
Number, after two-way exchange, transmission, to aforesaid equipment of the core network, above sees off and controls layer analysis decision-making or perform descending therewith
Order.
The type selecting of leaky cable
This utility model fully takes into account the discreteness of cable tunnel monitored object, and elite insertion loss is extremely low
Distributed leakage coaxial cable, i.e. leakage coaxial cable are had the ground of information requirement by coaxial cable in cable tunnel
Side's fluting, forms the discrete type leakage coaxial cable corresponding to monitored object, and in cable tunnel, theoretical loss is about
For 0.25dB, its structure is as shown in Figure 2.
This utility model uses the leakage coaxial cable designed for special frequency range, at the frequency multi-band environment of lte230M
Under, the loss of usual fixed frequency leaky cable considers diectric attenuation+attenuation+conductor self decay,
Attenuation constant α of leakage coaxial cable can be taken as 2.2dBkm, and system loss is α max.=α s+M=α
× L+Lc+M then L=(α max.-Lc-M) ÷ α, as a example by 230Mhz, consider surplus M=45dB,
Coupling loss Lc=75, the when of design maximum system loss α max.=135dB, draws 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, it is contemplated that tunnel
Close dome structure itself 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, uses TDD duplex mode, radio-frequency channel bandwidth
8.5Mhz, can support the online user number of maximum 2000 information points, and user refers to aforesaid controller, sensing
Devices 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 spirit
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
Individual or multiple remote radio devices relay, and see Fig. 3, and remote radio device is arranged in nucleus equipment (Ru Helu
Device etc.) wire transmission is apart from interior, and remote radio device can also be connected with nucleus equipment by optical fiber, remote radio
The power supply of device takes from tunnel intraoral illumination power supply, completes signal relaying in leaky cable.
Beneficial effect:
Radio communication device for cable tunnel monitoring system of the present utility model is a communication system platform,
Have the advantage that
(1) supporting that cable tunnel acquisition layer realizes information and uploads shared with information exchange, holder is networked at electricity
Application in cable tunnel.
(2) this device is a communications platform, can solve the nothing needed for cable tunnel monitoring system with low cost
Line communication overlay problem.
(3) use the LTE core network equipment of 230M frequency range, be specifically designed to the cable tunnel channel radio of power system
Letter.
LTE230 ratifies the special frequency range of the 230M to systems such as electric power, low-frequency transmission distance, peace based on Ministry of Industry and Information
Complete and other wireless systems will not be caused frequency range electromagnetic interference.
(4) select 230Mhz surely frequency leakage coaxial cable in the case of, use this utility model agreement from
Scattering groove way, so that leakage coaxial cable transmission range is up to 7km, such covering radius is the suitableeest
Share the communications platform making cable tunnel monitoring system, take full advantage of the power industry special low frequency of distinctive 230M
Resource.
(5), this device extensibility is strong, capacity big, meets the multiple auxiliary monitoring system of large tunnel to logical
Letter real-time, the requirement of safety and reliability.
Device of the present utility model can further genralrlization in city integrated piping lane.Underground pipe gallery refers on ground, city
The lower concentration that is used for lays the municipal pipelines such as electric power, communication, radio and television, feedwater, draining, heating power, combustion gas
Public tunnel.
Accompanying drawing explanation
Fig. 1 is the population structure schematic diagram of the radio communication device for cable tunnel monitoring system；
Fig. 2 is the structural representation of leaky cable.
Fig. 3 is the population structure schematic diagram of the cable tunnel communicator 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 radio communication device for cable tunnel monitoring system, including LTE system core
The network equipment, leakage cable and multiple sensor；Described sensor is for gathering the status information in tunnel；
LTE system core network device is connected with revealing cable；Reveal cable and send wireless signal；Reveal cable
It is provided with the fluting being easy to disseminate wireless signal；Sensor is connected with revealing cable radio communication；
Described sensor includes environmental conditions ensor, fire-fighting sensor, level sensor, harmful gas
Sensor, gateway be antitheft and at least one in detection sensor；
Environmental conditions ensor includes Temperature Humidity Sensor；Fire-fighting sensor includes that cigarette propagated sensation sensor and sensing are bright
The sensor of fire；
Harmful gas sensor is nitric oxide sensor；
Gateway is antitheft and detection sensor includes the infrared sensor for sensing human body and photographic head；
Reveal cable to be also connected with controller or the harvester radio communication of cable tunnel monitoring system；Controller with
Harvester is connected.Harvester is with radio communication function.
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.
Reveal cable to be also connected with the controller radio communication of cable tunnel monitoring system；Described controller and electricity
The harvester of cable tunnel monitoring system is connected；If harvester is with radio communication function, then harvester with let out
Dew inductance energy direct wireless communication connects.
LTE system core network device is deployed in high voltage substation communications equipment room or main control room, LTE system core
The heart network equipment is integrated with the net supporting SGSN&MME, GGSN&S/P-GW, CG, DNS, HLR&HSS and PCRF
Network unit.
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 for being zoomed out by signal to far end radio frequency, passes through
Remote radio device or distributed base station RRU+BBU are coupled to another root leakage coaxial cable, and the information that completes is in leakage
Relaying in cable.I.e. LTE system core network device can be with being directly connected with leakage coaxial cable, it is also possible to
It 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 is arranged alternately；LTE system core network device leads to the main frame of cable tunnel monitoring system
Letter connects.
Claims (6)
1. the radio communication device for cable tunnel monitoring system, it is characterised in that include LTE system core network
Equipment, leakage cable and multiple sensor；Described sensor is for gathering the status information in tunnel；
LTE system core network device is connected with revealing cable；Reveal cable and send wireless signal；Reveal cable to be provided with
It is easy to disseminate the fluting of 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；
Environmental conditions ensor includes Temperature Humidity Sensor；Fire-fighting sensor includes cigarette propagated sensation sensor and the biography of sensing naked light
Sensor；
Harmful gas sensor is nitric oxide sensor；
Gateway is antitheft and detection sensor includes the infrared sensor for sensing human body and photographic head；
Reveal cable to be also connected with controller or the harvester radio communication of cable tunnel monitoring system；Controller and harvester
It is connected.
Radio communication device for cable tunnel monitoring system the most according to claim 1, it is characterised in that tunnel is complete
Journey lays single leaky cable.
Radio communication device for cable tunnel monitoring system the most according to claim 1, it is characterised in that LTE
System core network deployed with devices is in high voltage substation communications equipment room or main control room, and LTE system core network sets
The standby NE being integrated with support SGSN&MME, GGSN&S/P-GW, CG, DNS, HLR&HSS and PCRF.
Radio communication device for cable tunnel monitoring system the most according to claim 3, 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.
Radio communication device for cable tunnel monitoring system the most according to claim 1, it is characterised in that let out
Dew cable is discrete type leakage coaxial cable.
6. according to the radio communication device for cable tunnel monitoring system described in any one of claim 1-5, its feature
Being, LTE system core network device is connected with the main-machine communication of cable tunnel monitoring system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620044963.6U CN205490539U (en) | 2016-01-18 | 2016-01-18 | A wireless communication device for cable tunnel monitored control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620044963.6U CN205490539U (en) | 2016-01-18 | 2016-01-18 | A wireless communication device for cable tunnel monitored control system |
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| Publication Number | Publication Date |
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| CN205490539U true CN205490539U (en) | 2016-08-17 |
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| CN201620044963.6U Expired - Fee Related CN205490539U (en) | 2016-01-18 | 2016-01-18 | A wireless communication device for cable tunnel monitored control system |
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Cited By (2)
| 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 |
| CN115333622A (en) * | 2022-06-24 | 2022-11-11 | 江汉大学 | Tunnel construction communication system based on free space optical communication |
-
2016
- 2016-01-18 CN CN201620044963.6U patent/CN205490539U/en not_active Expired - Fee Related
Cited By (2)
| 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 |
| CN115333622A (en) * | 2022-06-24 | 2022-11-11 | 江汉大学 | Tunnel construction communication system based on free space optical communication |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 |