CN109424365A - A kind of optical cable sensor-based system for personnel positioning rescue information - Google Patents
A kind of optical cable sensor-based system for personnel positioning rescue information Download PDFInfo
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- CN109424365A CN109424365A CN201710790759.8A CN201710790759A CN109424365A CN 109424365 A CN109424365 A CN 109424365A CN 201710790759 A CN201710790759 A CN 201710790759A CN 109424365 A CN109424365 A CN 109424365A
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- optical cable
- tunnel
- cable
- based system
- personnel
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- 230000003287 optical effect Effects 0.000 title claims abstract description 41
- 238000012544 monitoring process Methods 0.000 claims abstract description 14
- 230000006698 induction Effects 0.000 claims abstract description 11
- 230000009429 distress Effects 0.000 claims abstract description 8
- 238000005516 engineering process Methods 0.000 claims abstract description 7
- 230000005540 biological transmission Effects 0.000 claims abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 239000013307 optical fiber Substances 0.000 description 3
- 230000001427 coherent effect Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- WLRMANUAADYWEA-NWASOUNVSA-N (S)-timolol maleate Chemical compound OC(=O)\C=C/C(O)=O.CC(C)(C)NC[C@H](O)COC1=NSN=C1N1CCOCC1 WLRMANUAADYWEA-NWASOUNVSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000003862 health status Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000012549 training Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F11/00—Rescue devices or other safety devices, e.g. safety chambers or escape ways
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Business, Economics & Management (AREA)
- Health & Medical Sciences (AREA)
- Emergency Management (AREA)
- Pulmonology (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention discloses the optical cable sensor-based systems that a kind of trapped person in pit, tunnel positions rescue information, belong to monitoring technology field.The present invention uses an optical cable, places along the bottom side in mine, tunnel.Optical cable itself collects the transmitting, reception, the three-in-one function of transmission of personnel positions signal, is not required to additionally mounted any other equipment, does not also need to power.When encounter collapse accident after, the trapped person of any position need to only touch the induction optical cable placed in advance tunnel bottom side in tunnel, the accurate information of individual position can be sent back ground monitoring room at any time, timely and accurately carry out pick-up operation for rescue worker.Present invention installation and maintenance are simple, positioning and distress signals can be provided for the trapped person in various pits, tunnel, easy to operate, application prospect is extensive.
Description
Technical field
The invention belongs to monitoring technology fields, and in particular to sense system to a kind of optical cable for personnel positioning rescue information
System.
Background technique
Construction personnel in mine, tunnel may face the various risk factors such as landslide, explosion to be confined in ground end depth
Place.The information such as position, number, the health status of trapped person are determined accurately and in time, ground rescue worker are formulated effective
Rescue method, it is extremely important.
Existing mine, tunnel personnel location system, generally use the wireless location technologies such as WIFI, RF.It is small-sized when wearing
When the personnel of sender unit are by near reception device scheduled in tunnel, Association Identity signal passes through communication line for people
Member's location information automatically delivers go back to ground monitoring room.But such technology, there are many potential problems, the reliability of system is being closed
The key moment is unexpected frequent occurrence, such as: tunnel collapses that rear wireless signal is blocked, signal transmission/reception breaks down (electricity
Pond exhausts, equipment is intake), positioning device separate men from machines (cause rescue personnel judge by accident position, work hard but to no avail) etc..And it sets
Standby to need periodic maintenance, service life is not grown.
In view of the above technical problems, a kind of simple and reliable personnel positioning rescue information information system is invented, is greatly improved
Rescue efficiency has very urgent realistic meaning.
The Distributed Optical Fiber Sensing Techniques occurred in recent years, very sensitive for the vibration signal on optical cable, optical cable has
Very low transmission loss, monitoring distance have registration, high sensitivity, reliable up to tens kilometers and not needing to power
Property height, strong antijamming capability, adaptable, electromagnetism interference the advantages that, be particularly suitable for the vibration signal induction of long range and pass
It is defeated.Transmission mechanism and laser signal modulation-demo-demodulation method are incuded by vibration signal appropriate, and full-automatic prison in real time may be implemented
Survey the vibration signal that any one position generates on optical cable.
By taking traditional optics closed circuit interference ring as an example, the light that laser issues is clockwise and inverse through 2x2 coupler point
Hour hands both direction enters optics closed circuit, incudes optical fiber by disturbing signal and 2x2 coupler converges to detector shape again
At interference signal.Any disturbance is applied on optics closed circuit, can all cause propagate light phase variation Φ (t), and this
The length of position and optics closed circuit on optics closed circuit is occurred by disturbance for the time difference that a variation reaches detector
It determines.Time difference is bigger, and the interference curent change that detector detects is bigger
I (t)=I0(2-2cos(ΔΦ(t)+Φ0)),
ΔΦ (t)=Φ (t-t in above formula1)-Φ(t-t2),L is the length of optics closed circuit
Degree, x are the distance that middle disturbance point arrives 2x2 coupler clockwise, and L-x is disturbance point counter clockwise direction in optics closed circuit
To the distance of 2x2 coupler, c is the speed that light is propagated in a fiber, I0It is defeated for one without detector from coupler when interfering
The light intensity that outlet receives, Φ0It is initial phase difference, 2x2 coupler will bring the difference of π.
Assuming that the disturbance being applied on sensor fibre when t=0 betides at x；Detector will be after disturbance occurs
Time point observes the variation of coherent signal, and another detector will beTime point observes the variation of coherent signal.Meter
After calculating (t1-t2), the position for disturbing generation can be by x=(L-c (t1-t2))/2 find out；Meanwhile disturbing the signal that position occurs
Feature can obtain I (t) in real time by high-speed data acquisition equipment, then by special signal mode recognizer come into one
Step demodulates the phase change ΔΦ (t) of disturbing signal.
Summary of the invention
It is an object of the invention to use Distributed Optical Fiber Sensing Techniques, provide a kind of for stranded in pit, tunnel
The optical cable sensor-based system of personnel positioning rescue information, to replace the wireless personnel positioning equipment of traditional WIFI or RF or machine
Tool is checked card equipment, to solve the problems mentioned in the above background technology.
Specifically, the technical scheme adopted by the invention is that:
1. sensitive to a vibration signal distributed induction optical cable is mounted in the cable duct of tunnel bottom side, when encountering
After collapsing accident, the trapped person of any position need to only touch above-mentioned induction optical cable in tunnel, can be at any time current location
Accurate information send back ground monitoring room, timely and accurately carry out pick-up operation for rescue worker.Trapped person can also lead to
Preparatory training and learning is crossed, by prespecified special skill touch sensing optical cable when stranded, generate and transmits on optical cable
Morse code sends back the rescue informations such as ambient conditions, health condition in ground monitoring room.
2. further characteristic of the invention is: the optical cable uses the distribution type fiber-optic sensitive to vibration signal and incudes
Technology can accurately transmit location information and distress signal, and cable length can be more than 40 kilometers, and positioning accuracy is less than 1 meter.
3. further characteristic of the invention is: described optical cable itself collects the transmitting, reception, transmission three of personnel positions signal
Unify function, is not required to additionally mounted any other equipment in tunnel, does not also need to power.
4. further characteristic of the invention is: trapped person can be generated and be transmitted Morse code, transmitting by optical cable
Various distress signals return monitoring room.
5. further characteristic of the invention is: the cable duct can store optical cable in slot, and about bundle cable does not escape out
Personnel's normal operation is influenced outside slot.
6. further characteristic of the invention is: this system is also applied for the spy such as ground cave, boundary line, jungle, desert
The related personnel such as danger, travelling, patrol send position and distress signal when stranded.Optical cable can be placed in slot local official, and what is convenient
Position.
Compared with prior art, the beneficial effects of the present invention are:
1. an optical cable can cover 40 kilometers or more of pit area, within 1 meter of positioning accuracy.
2. current location can accurately be sent back to monitoring room whenever and wherever possible, without carrying any equipment.
3. trapped person can generate Morse code by optical cable, emits various distress signals and return monitoring room.
4. power supply is not needed in tunnel in addition to an optical cable and any other cable, construction maintenance are very easy.
5. can be according to tunnel formation, running fix optical cable to new tunnel position at any time.
6. system remains to normally be accurately positioned after optical cable ring type structure can guarantee that optical cable is completely cut through by the waist.
7. optical cable waterproof, antirust, exempts from electromagnetic interference at anti-corrosion, and underground service life 20 years or more.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the schematic perspective view of invention.
In figure: 1 tunnel wall, 2 cable ducts, 3 optical cables, 4 ground.
Specific embodiment
Embodiment one:
As shown in Figures 1 and 2, the optical cable that a kind of trapped person in pit, tunnel positions rescue information senses system
System, characterized in that distributed induction optical cable (3) sensitive to vibration signal is placed in the cable duct of tunnel (1) bottom side
(2) in, when encounter collapse accident after, the trapped person of any position need to only touch above-mentioned induction optical cable, Ji Kesui in tunnel
When the accurate information of current location sent back ground monitoring room, timely and accurately carry out pick-up operation for rescue worker.Optical cable
It only needs to guarantee to reside in cable duct, does not influence personnel's normal operation in tunnel, do not need specially with other cards
Nail is fixed in slot, is installed very convenient.Optical cable can move at any time new tunnel with coordinative construction progress, that is, change
Monitoring area.
Embodiment two:
Embodiment two is slightly different with embodiment one, and the main distinction is: induction optical cable can also be placed on all kinds of spies
In danger or tourist orientation, rescue signal is sent for injured, tired trapped person.
Embodiment three:
Embodiment three is slightly different with embodiment one, and the main distinction is: induction optical cable can also be placed on jungle, sand
By the unfrequented road such as desert, rescue signal is sent for injured, tired, resource exhaustion trapped person.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (6)
1., will the invention discloses the optical cable sensor-based system that a kind of trapped person in pit, tunnel positions rescue information
Piece distributed induction optical cable (3) sensitive to vibration signal is mounted in the cable duct (2) of tunnel (1) bottom side, collapses when encountering
After the accident of falling into, the trapped person of any position need to only touch above-mentioned induction optical cable in tunnel, can be at any time current location
Accurate information sends back ground monitoring room, timely and accurately carries out pick-up operation for rescue worker.
2. personnel positioning rescue information sensor-based system according to claim 1, it is characterized in that: the optical cable (3) uses
The distribution type fiber-optic induction technology sensitive to vibration signal, can accurately transmit location information and distress signal, cable length can
With more than 40 kilometers, positioning accuracy is less than 1 meter.
3. personnel positioning rescue information sensor-based system according to claim 1, it is characterized in that: the optical cable (3) itself collects
The transmitting of personnel positions signal, transmits three-in-one function at reception, is not required to additionally mounted any other equipment in tunnel, is also not required to
It powers.
4. personnel positioning rescue information sensor-based system according to claim 1, it is characterized in that: trapped person can pass through light
Cable (3) generates and transmission Morse code, emits various distress signals and returns monitoring room.
5. personnel positioning rescue information sensor-based system according to claim 1, it is characterized in that: the cable duct (2) can
Optical cable (3) are stored in slot, about bundle cable, which does not escape out, influences personnel's normal operation outside slot.
6. personnel positioning rescue information sensor-based system according to claim 1, it is characterized in that: this system is also applied for ground
The related personnel such as the exploration such as cave, boundary line, jungle, desert, travelling, patrol send position and distress signal when stranded.Light
Cable can be placed in what convenient position of slot local official.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710790759.8A CN109424365A (en) | 2017-09-05 | 2017-09-05 | A kind of optical cable sensor-based system for personnel positioning rescue information |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710790759.8A CN109424365A (en) | 2017-09-05 | 2017-09-05 | A kind of optical cable sensor-based system for personnel positioning rescue information |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109424365A true CN109424365A (en) | 2019-03-05 |
Family
ID=65513433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710790759.8A Pending CN109424365A (en) | 2017-09-05 | 2017-09-05 | A kind of optical cable sensor-based system for personnel positioning rescue information |
Country Status (1)
| Country | Link |
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| CN (1) | CN109424365A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114207389A (en) * | 2019-08-13 | 2022-03-18 | 日本电气株式会社 | Optical fiber sensing system, optical fiber sensing device and rescue request detection method |
-
2017
- 2017-09-05 CN CN201710790759.8A patent/CN109424365A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114207389A (en) * | 2019-08-13 | 2022-03-18 | 日本电气株式会社 | Optical fiber sensing system, optical fiber sensing device and rescue request detection method |
| EP4016015A4 (en) * | 2019-08-13 | 2022-09-21 | NEC Corporation | Optical fiber sensing system, optical fiber sensing device, and rescue request detection method |
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Application publication date: 20190305 |