CN104217558B - Distributed optical fiber sensing alarm system and data obtaining and processing method thereof - Google Patents
Distributed optical fiber sensing alarm system and data obtaining and processing method thereof Download PDFInfo
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Abstract
The invention belongs to the technical field of communication and discloses a data obtaining and processing method of a distributed optical fiber sensing alarm system. The data obtaining and processing method comprises the following steps of obtaining sensing signals at the tail ends of distributed optical fibers and converting the sensing signals into real-time monitoring data; demodulating alarm information in the real-time monitoring data; calculating position coordinates of alarm points according to the alarm information and marking the alarm points on a map interface through the position coordinates; sending map information including the alarm points to mobile terminals through a mobile network or a broadband network to complete warming. By means of the method, a data obtaining and processing structure of the distributed optical fiber sensing alarm system is optimized, accordingly the warning efficiency is improved, the intelligence degree is improved, manual participation is reduced, and the demand of human resources is reduced.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of distributing optical fiber sensing warning system and its data acquisition
With processing method.
Background technology
Optical fiber sensing technology is widely used in field of communication transmission, is a kind of important fiber optic applications technology;But giving birth to
The practical application in living is produced, it is also somewhat limited.
Its main cause is the acquisition of Fibre Optical Sensor information and processes relative complex;More particularly to concrete application, for example
Distributed optical fiber sensor is often limited to data acquisition and treatment effeciency in the application in security alarm field, application
Prospect is limited;Or the high of use cost is caused, need substantial amounts of human input.
The content of the invention
The technical problem to be solved is to provide a kind of distributing optical fiber sensing alert data that lifted and obtains and place
Reason efficiency, reduces the system and method for human input.
For solve above-mentioned technical problem, the invention provides a kind of data acquisition of distributing optical fiber sensing warning system with
Processing method, comprises the following steps:
Obtain the induced signal of distributed fiberoptic sensor end and be converted into Real-time Monitoring Data;
Demodulate the warning message in the Real-time Monitoring Data;
The distance of alarm point is calculated by the warning message, and by the distance of the alarm point by the alarm point
It is labeled on virtual map interface;
Mobile terminal will be sent to by mobile network or broadband network including the cartographic information of alarm point, complete report
It is alert.
Further, the distance of the alarm point is the alarm point range distribution formula Fibre Optical Sensor end and sensing master
The distance between machine.
Further, the end number of distributed fiberoptic sensor uniquely corresponds to respectively a node of the map;Dividing
In the case of the end sensing output alarm signal of cloth Fibre Optical Sensor, pass with the distribution type fiber-optic on the virtual map
The corresponding node in end of sensor, exports warning message, shows on a monitor.
Further, the warning message is characterized by the form that pop-up or contact color state change.
Further, the step of calculating the virtual map node by the distance of alarm point includes:
The distance of alarm point is made into difference with the distance of i-th node and obtains difference cz;
In the case where cz is 0, i-th node is the alarm point corresponding node on the virtual map;
In the case where cz is not 0, the distance of remaining node is gradually compared, until determining the alarm point described virtual
Corresponding node on map;
Wherein, i is natural number;The distance of all nodes on virtual map pre-sets.
A kind of distributing optical fiber sensing warning system, it is characterised in that include:
Distributed optical fiber sensing system, for the monitoring in security protection region, returns in real time Monitoring Data;
Data processing module, for demodulating the Monitoring Data;
Central server, for calculating the distance of alarm point and realizing associating for alarm point and the node on virtual map,
And output warning message;
Terminal is obtained, the warning message that central server sends is received;
Wherein, the distance of the alarm point is the distance between the alarm point and sensing main frame;
The step of calculating the virtual map node by the distance of alarm point includes:
The distance of alarm point is made into difference with the distance of i-th node and obtains difference cz;
In the case where cz is 0, i-th node is the alarm point corresponding node on the virtual map;
In the case where cz is not 0, with cz as threshold value, the distance of remaining node is gradually compared;When new difference is than cz hour,
With new difference as threshold value;Until new difference can determine that the alarm point corresponding section on the virtual map more than threshold value
Point;
Wherein, i is natural number;The distance of all nodes on virtual map pre-sets.
Further, the distributed optical fiber sensing system includes:Distributed fiberoptic sensor and sensing main frame;
The distributed fiberoptic sensor is arranged at the point each to be monitored in security protection region, and monitoring variable is returned in real time;
The sensing main frame receives the monitoring variable of distributed fiberoptic sensor, and changes and store into real time data.
Further, the data processing module is the data processing module based on Lab View.
Further, the central server is Web server.
Further, the acquisition terminal is mobile terminal or fixed terminal equipment.
The acquisition that the Data acquisition and Proclssing method of the distributing optical fiber sensing warning system that the present invention is provided passes through system
The Real-time Monitoring Data of distributed fiberoptic sensor, and demodulated by data, associate virtual map and send to reception
The mode of terminal, the intelligence degree of alarm system for lifting is lifting early warning performance, while substantially reducing artificial participation, reduces
Human input;Coordinate distributed optical fiber sensing system simultaneously, efficient distributing optical fiber sensing warning system is set up, as warning
Application platform, realizes efficient, early warning information acquisition, processes and sends, and greatly improves early warning performance.
Description of the drawings
Fig. 1 is node algorithm schematic diagram provided in an embodiment of the present invention;
Fig. 2 is distributing optical fiber sensing warning system structural representation provided in an embodiment of the present invention;
Fig. 3 is distributed optical fiber sensing system schematic diagram provided in an embodiment of the present invention;
Fig. 4 is distributed optical fiber sensing system on-line condition monitoring algorithm schematic diagram provided in an embodiment of the present invention.
Specific embodiment
A kind of Data acquisition and Proclssing method of distributing optical fiber sensing warning system provided in an embodiment of the present invention, including
Following steps:
Obtain the induced signal of distributed fiberoptic sensor end and be converted into Real-time Monitoring Data;
Warning message in demodulation Real-time Monitoring Data;
The distance of alarm point is calculated by warning message, and is labeled in alarm point virtually by the distance of alarm point
On figure interface;
Mobile terminal will be sent to by mobile network or broadband network including the cartographic information of alarm point, complete report
It is alert.
Distributed optical fiber sensing system realizes sensor alarming by the polarized light detection of optical fiber link, by the light pulse of sensing
Change passback, by opto-electronic conversion and analog digital conversion, exports finally by data collecting card storage, realizes sensing process.This
Embodiment provides distributed optical fiber sensing system and senses as the monitoring in security protection region, is waiting to supervise by distal optical fiber link configuration
Measuring point, implementing monitoring is reported to the police.
During monitor in real time, the continual optical signal by optical fiber link of distributed optical fiber sensing system is returned,
Detection, conversion storage output;By the sensing data of demodulation passback in real time, warning message is obtained.
When certain point has alarm condition, demodulated by data, the particular location of alarm point can be accurately obtained, in view of
The structural relation of optical fiber link, be usually expressed as and sense main frame distance, i.e., certain point Distance-sensing main frame distance, using as
The parameter of mark alarm point;Obtained apart from parameter by calculating warning message, so as to obtain the information of alarm point, clearly reported to the police
Point.
For the ease of understanding, all distributed optical fiber sensing systems can be depicted as virtual map, on virtual map
Monitoring alarm point in security protection region is marked, it is vivid by the corresponding node on virtual map after the information of clear and definite alarm point
Display alarm position.
In order to realize reliability and the promptness reported to the police, can be sent to terminal by mobile network or broadband network
Warning message.
The form of warning message can be chosen according to practical situation, it is preferred that can be become by the color state of virtual map node
Change the state of the optical signal of the optical fiber link for representing corresponding with node, to characterize warning message;Or shown in the form of pop-up
Show on virtual map, illustrate the information such as the location designation of alarm point.
Referring to Fig. 1, include the step of calculate virtual map node by the distance of alarm point:
The distance of alarm point is made into difference with the distance of i-th node and obtains difference cz;
In the case where cz is 0, i-th node is the alarm point corresponding node on the virtual map;
In the case where cz is not 0, with cz as threshold value, the distance of remaining node is gradually compared;When new difference is than cz hour,
With new difference as threshold value;Until new difference can determine that the alarm point corresponding section on the virtual map more than threshold value
Point;
Wherein, i is natural number;The distance of all nodes on virtual map pre-sets.
The distance of alarm point is the distance between the alarm point range distribution formula Fibre Optical Sensor end and sensing main frame.
One node of the unique correspondence map of end number difference of distributed fiberoptic sensor;Feel in the end of distributed fiberoptic sensor
In the case of answering output alarm signal, node corresponding with the end of distributed fiberoptic sensor on virtual map, output is reported to the police
Information, shows on a monitor.
Referring to Fig. 2, the present embodiment also provides a kind of distributing optical fiber sensing warning system, including:
Distributed optical fiber sensing system, for the monitoring in security protection region, returns in real time Monitoring Data;
Data processing module, for demodulating the Monitoring Data;
Central server, for calculating the distance of alarm point and realizing associating for alarm point and the node on virtual map,
And output warning message;
Terminal is obtained, the warning message that central server sends is received;
Wherein, the distance of the alarm point is the distance between the alarm point and sensing main frame;
The step of calculating the virtual map node by the distance of alarm point includes:
The distance of alarm point is made into difference with the distance of i-th node and obtains difference cz;
In the case where cz is 0, i-th node is the alarm point corresponding node on the virtual map;
In the case where cz is not 0, with cz as threshold value, the distance of remaining node is gradually compared;When new difference is than cz hour,
With new difference as threshold value;Until new difference can determine that the alarm point corresponding section on the virtual map more than threshold value
Point;
Wherein, i is natural number;The distance of all nodes on virtual map pre-sets.
Referring to Fig. 3, distributed optical fiber sensing system includes:Distributed fiberoptic sensor and sensing main frame;
Distributed fiberoptic sensor is arranged at the point each to be monitored in security protection region, and monitoring variable is returned in real time;
Sensing main frame receives the monitoring variable of distributed fiberoptic sensor, and changes and store into real time data.
Its concrete structure includes:Light-pulse generator, sensor fibre link, analyzer, circulator, photo-detector, analog digital conversion
Circuit, data collecting card and sensing main frame;Flange is used between analyzer and circulator and between analyzer and photo-detector
Disk connects, and fibre-optical splice needs to add wire jumper switching when mismatching.BNC- is used between analog to digital conversion circuit and data collecting card
SMA patchcords connect.Turn Serial Port Line connection using RS-485 between data collecting card and computer.Distributing optical fiber sensing link
System of laying can be designed according to practical application;For fence, the preferred application in enclosure wall class viewing area or shallow embedding method, to electricity
The pipeline-like region such as cable tunnel, petroleum pipeline is preferably embedded to lay method.
Data processing module is the data processing module based on Lab View.
Central server is Web server.
It is mobile terminal or fixed terminal equipment to obtain terminal.
Referring to Fig. 4, the realization of distributed optical fiber sensing system on-line condition monitoring function needs data-acquisition system and Web
Between server ceaselessly question and answer realizing:Timing 3s sends an interrogation signal first on distributed optical fiber sensing system;
Then Web server will point out the former online after interrogation signal is received with green light, and remove last timing, retime
10s;If not receiving interrogation signal in 10s, server can point out the former to go offline in the form of red light early warning;Server after 2s
The former is pointed out to go offline again in the form of to play frame.
The acquisition that the Data acquisition and Proclssing method of the distributing optical fiber sensing warning system that the present invention is provided passes through system
The Real-time Monitoring Data of distributed fiberoptic sensor, and demodulated by data, associate virtual map and send to reception
The mode of terminal, the intelligence degree of alarm system for lifting is lifting early warning performance, while substantially reducing artificial participation, reduces
Human input;Coordinate distributed optical fiber sensing system simultaneously, efficient distributing optical fiber sensing warning system is set up, as warning
Application platform, realizes efficient, early warning information acquisition, processes and sends, and greatly improves early warning performance.
It should be noted last that, above specific embodiment only to illustrate technical scheme and unrestricted,
Although being described in detail to the present invention with reference to example, it will be understood by those within the art that, can be to the present invention
Technical scheme modify or equivalent, without deviating from the spirit and scope of technical solution of the present invention, it all should cover
In the middle of scope of the presently claimed invention.
Claims (8)
1. a kind of Data acquisition and Proclssing method of distributing optical fiber sensing warning system, it is characterised in that comprise the following steps:
Obtain the induced signal of distributed fiberoptic sensor end and be converted into Real-time Monitoring Data;
Demodulate the warning message in the Real-time Monitoring Data;
The distance of alarm point is calculated by the warning message, and is marked the alarm point by the distance of the alarm point
On virtual map interface;
Mobile terminal will be sent to by mobile network or broadband network including the cartographic information of alarm point, complete to report to the police;
Wherein, the distance of the alarm point is the distance between the alarm point and sensing main frame;
The step that the alarm point is labeled on the virtual map interface is included by the distance of alarm point:
The distance of alarm point is made into difference with the distance of i-th node and obtains difference cz;
In the case where cz is 0, i-th node is the alarm point corresponding node on the virtual map;
In the case where cz is not 0, with cz as threshold value, the distance of remaining node is gradually compared;When new difference is than cz hour, with new
Difference is threshold value;Until new difference can determine that the alarm point corresponding node on the virtual map more than threshold value;
Wherein, the node is the position on the virtual map;I is natural number;The distance of all nodes on virtual map
Pre-set.
2. the Data acquisition and Proclssing method of distributing optical fiber sensing warning system as claimed in claim 1, it is characterised in that:
The end of distributed fiberoptic sensor uniquely corresponds to respectively a node of the map;In the end of distributed fiberoptic sensor
In the case of sensing output alarm signal, section corresponding with the end of the distributed fiberoptic sensor on the virtual map
Point, exports warning message, shows on a monitor.
3. the Data acquisition and Proclssing method of distributing optical fiber sensing warning system as claimed in claim 2, it is characterised in that:
The warning message is characterized by the form that pop-up or node color state change.
4. a kind of distributing optical fiber sensing warning system, it is characterised in that include:
Distributed optical fiber sensing system, for the monitoring in security protection region, returns in real time Monitoring Data;
Data processing module, for demodulating the Monitoring Data;
Central server, for calculating the distance of alarm point and realizing associating for alarm point and the node on virtual map, and
Output warning message;
Terminal is obtained, the warning message that central server sends is received;
Wherein, the distance of the alarm point is the distance between the alarm point and sensing main frame;
The step that the alarm point is labeled on the virtual map interface is included by the distance of alarm point:
The distance of alarm point is made into difference with the distance of i-th node and obtains difference cz;
In the case where cz is 0, i-th node is the alarm point corresponding node on the virtual map;
In the case where cz is not 0, with cz as threshold value, the distance of remaining node is gradually compared;When new difference is than cz hour, with new
Difference is threshold value;Until new difference can determine that the alarm point corresponding node on the virtual map more than threshold value;
Wherein, i is natural number;The distance of all nodes on virtual map pre-sets.
5. distributing optical fiber sensing warning system as claimed in claim 4, it is characterised in that the distributing optical fiber sensing system
System includes:Distributed fiberoptic sensor and sensing main frame;
The distributed fiberoptic sensor is arranged at the point each to be monitored in security protection region, and monitoring variable is returned in real time;
The sensing main frame receives the monitoring variable of distributed fiberoptic sensor, and changes and store into real time data.
6. distributing optical fiber sensing warning system as claimed in claim 5, it is characterised in that the data processing module is base
In the data processing module of Lab View.
7. distributing optical fiber sensing warning system as claimed in claim 5, it is characterised in that the central server is Web
Server.
8. distributing optical fiber sensing warning system as claimed in claim 5, it is characterised in that the acquisition terminal for it is mobile eventually
End or fixed terminal equipment.
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CN109595470B (en) * | 2019-01-15 | 2020-08-04 | 广东聚源管业实业有限公司 | Distributed pipeline detection method |
CN110032668A (en) * | 2019-04-19 | 2019-07-19 | 广东聚源管业实业有限公司 | A kind of underground pipe network visualization method for early warning and device based on network big data |
CN110715609B (en) * | 2019-09-27 | 2021-01-01 | 广东聚源管业实业有限公司 | Method and system for monitoring airflow surging state in pipeline based on Brillouin scattering |
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CN102809421A (en) * | 2011-06-01 | 2012-12-05 | 电子科技大学 | Multi-point localizable distribution-type optical-fiber vibration sensor based on polarization-state differential detection |
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