CN208536846U - Landmark locations acquisition device - Google Patents
Landmark locations acquisition device Download PDFInfo
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- CN208536846U CN208536846U CN201820850918.9U CN201820850918U CN208536846U CN 208536846 U CN208536846 U CN 208536846U CN 201820850918 U CN201820850918 U CN 201820850918U CN 208536846 U CN208536846 U CN 208536846U
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- optical fiber
- terrestrial reference
- landmark locations
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Abstract
The utility model relates to a kind of landmark locations acquisition device, and for obtaining the landmark locations of Fibre Optical Sensor point, which includes that the first acquisition module, the second acquisition module and third obtain module；First acquisition module, the second acquisition module and third obtain module and are sequentially connected；If the first acquisition module is used to obtain the endpoint terrestrial reference of the main section of composition optical fiber；Second acquisition module is for line segment where obtaining Fibre Optical Sensor point；Third obtains the terrestrial reference that module is used to obtain the Fibre Optical Sensor point according to the endpoint terrestrial reference of line segment where the Fibre Optical Sensor point；The landmark locations acquisition methods and device of the utility model, the method for obtaining the landmark locations of Fibre Optical Sensor point by manual measurement completely instead of tradition, the difficulty that the cost and Fibre Optical Sensor point terrestrial reference for greatly reducing fiber deployment obtain.
Description
Technical field
The utility model relates to landmark locations acquiring technology field more particularly to a kind of landmark locations acquisition device.
Background technique
Optical fiber sensing technology is using based on the certain optical characteristics of fiber medium, and acquisition is subjected to environment temperature when fiber medium
When degree and stress variation, caused temperature and the variation of stress meter amount；Compared with other method for sensing, Fibre Optical Sensor has transmission
The unique advantages such as, sensing point scale more and completely passive detection sensings wider apart from longer, measurement geographic range；For example,
Distributing optical fiber sensing (DTS) system of standard can support 20000 meters of transmission range, be equivalent to along optical line by can be with
Support up to 20000 sensing points；The sensing point and its large-scale sensing data of such multi-quantity can be corresponded to smoothly very much
A sensing mapping out, wherein optical line on geographical location by that can carry out visualization display, and each sensing point
It can successively be shown along optical fiber route.
In this process, a key and challenging problem are how to will be indicated as each sensing points of distance
It is converted into the actual geographic coordinate position indicated by two dimension or three-dimensional coordinate；Geographical coordinate is that (three-dimensional is also wrapped with latitude, longitude
Include height above sea level) indicate the terrestrial reference in earth coordinates, hereinafter referred to as " terrestrial reference "；It is shown on terrestrial reference map or generalized information system
The process of sensing points P (i), first task are first to find the landmark locations of P (i).
Conventional method usually requires a field technician, after system is installed, need to allow each Fibre Optical Sensor point
It is subjected to temperature or strain variation, sensing host is allowed to calculate the fiber distance of the point.And along optical fiber route hand-held
Terrestrial reference positioning device record the map terrestrial reference of each sensing point；Then map terrestrial reference and fiber distance are corresponded to each other and defeated
Enter database.To establish configuration relation required for map denotation.
However, the method for above-mentioned manual testing's sensing point is a very time-consuming process, it is also easy to malfunction；And
In the actual environment, the optical fiber where sensing point often loses label, therefore, prevent sensing point is from accurately being identified.
Thus, need it is a kind of reduction cost of labor, reduce landmark locations obtain difficulty landmark locations acquisition methods and
Device.
Utility model content
Based on this, it is necessary to which artificial telephone expenses are more when obtaining for current progress Fibre Optical Sensor point and sensing point is easy to lose
Mistake causes to be not easy the problem of taking landmark locations, provides a kind of ground for reducing cost of labor, reducing landmark locations acquisition difficulty
Cursor position acquisition device.
Purpose according to the present utility model provides a kind of landmark locations acquisition device, for obtaining the ground of Fibre Optical Sensor point
Cursor position, the device include that the first acquisition module, the second acquisition module and third obtain module；First obtains module, second
It obtains module and third obtains module and is sequentially connected；
First obtains module, if the endpoint terrestrial reference of the main section for obtaining composition optical fiber；
Second obtains module, for line segment where obtaining Fibre Optical Sensor point；
Third obtains module, for obtaining the Fibre Optical Sensor according to the endpoint terrestrial reference of line segment where the Fibre Optical Sensor point
The terrestrial reference of point.
Further, the first acquisition module further comprises first acquisition unit, and first acquisition unit is described for obtaining
Optical fiber inflection point terrestrial reference.
Further, the first acquisition module further comprises second acquisition unit, and second acquisition unit is for obtaining optical fiber
Several homogeneous section endpoint terrestrial references.
Further, the first acquisition module further comprises third acquiring unit, and third acquiring unit is for obtaining optical fiber
The coordinate of map where sensing point.
Further, the spatial resolution of sensor-based system where the length of homogeneous section is less than optical fiber.
Further, the first acquisition module includes in first acquisition unit, second acquisition unit and third acquiring unit
One or more；First acquisition unit is for obtaining optical fiber inflection point terrestrial reference；Second acquisition unit is several for obtaining optical fiber
Homogeneous section endpoint terrestrial reference；Third acquiring unit is used to obtain the coordinate of Fibre Optical Sensor point map.
It further, further include intelligent terminal module；Intelligent terminal module is equipped with APP execution module；APP execution module
For executing the endpoint terrestrial reference for obtaining optical fiber.
It further, further include positioning device, positioning device is used for along optical fiber route record position information, thus into one
Step obtains the endpoint terrestrial reference of optical fiber line segment.
It further, further include having optical time domain reflectometer；Optical time domain reflectometer be used to obtain the optics of Fibre Optical Sensor point away from
From.
The beneficial effects of the utility model include: the landmark locations acquisition device of the utility model, form light by obtaining
If the endpoint terrestrial reference of fine main section, by line segment where judging Fibre Optical Sensor point, then according to where the Fibre Optical Sensor point
The endpoint terrestrial reference of line segment obtains the terrestrial reference of the Fibre Optical Sensor point；The landmark locations acquisition device of the utility model, instead of tradition
The method for obtaining the landmark locations of Fibre Optical Sensor point by manual measurement completely, greatly reduces the cost and optical fiber of fiber deployment
The difficulty that sensing point terrestrial reference obtains.
Detailed description of the invention
Fig. 1 is the landmark locations acquisition device schematic diagram of an embodiment of the present invention；
Fig. 2 is the landmark locations acquisition methods flow chart of an embodiment of the present invention；
Fig. 3 is the diagram that the utility model calculates sensing point terrestrial reference by the terrestrial reference of consecutive points.
Specific embodiment
As described above, conventional method usually requires a field technician, after system is installed, each light need to be allowed
Fine sensing point is subjected to temperature or strain variation, and sensing host is allowed to calculate the fiber distance of the point；And along optical fiber route
The map terrestrial reference of each sensing point is recorded with the terrestrial reference positioning device of hand-held；Then map terrestrial reference and fiber distance is mutual
Corresponding and input database；To establish configuration relation required for map denotation；And the landmark locations of the utility model obtain
Method and device manually directly acquire Fibre Optical Sensor point instead of script by obtaining the position of the predetermined point on optical fiber
Landmark locations are respectively provided with fiber position node on general optical fiber, save artificial the step of finding sensing point, are also prevented from because passing
Sense point position record disappears the problem of causing sensing point that can not find, and reduces the difficulty of sensing point landmark locations acquisition.
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing to this reality
It is illustrated with the specific embodiment of the temperature acquisition system of new embodiment；It should be appreciated that specific reality described herein
It applies example to be only used to explain the utility model, is not used to limit the utility model.
With reference to Fig. 1, the utility model further includes a kind of landmark locations acquisition device 200, for obtaining Fibre Optical Sensor point
Landmark locations；The device obtains sensing point terrestrial reference by using following landmark locations acquisition methods 100；The device 200 specifically wraps
It includes the first acquisition module 220, second and obtains module 240 and third acquisition module 260；First, which obtains module 220, second, obtains
Module 240 and third obtain module 260 and successively communicate to connect；
If first obtains the endpoint terrestrial reference that module 220 obtains the main section of composition optical fiber；Second, which obtains module 240, obtains light
Line segment where fine sensing point；Third obtains module 260 according to the endpoint terrestrial reference acquisition of line segment where the Fibre Optical Sensor point
The terrestrial reference of Fibre Optical Sensor point；
Wherein, the first acquisition module 220 includes: first acquisition unit 222, for obtaining optical fiber inflection point terrestrial reference.
Preferably, in other examples, the first acquisition module 220 can further include: second acquisition unit
224, for obtaining several homogeneous section endpoint terrestrial references of optical fiber；Wherein, the length of homogeneous section is less than sensor-based system where optical fiber
Spatial resolution.
Preferably, in other examples, the first acquisition module 220 can further include: third acquiring unit
226, the coordinate for map where obtaining Fibre Optical Sensor point.
Wherein, it is above-mentioned first acquisition module 220 may include above-mentioned first acquisition unit 222, second acquisition unit 224 with
And one or more in third acquiring unit 226；Any mode is used in this way, can be specifically chosen according to the actual situation
Calculate the terrestrial reference of sensing point.
Preferably, in conjunction with above scheme, in the present embodiment, landmark locations acquisition device further includes intelligent terminal module；Intelligence
Energy terminal module is equipped with APP execution module；APP execution module is used to execute the endpoint terrestrial reference for obtaining optical fiber.
Preferably, in conjunction with above scheme, in the present embodiment, landmark locations acquisition device further includes having optical time domain reflectometer；
Optical time domain reflectometer is used to obtain the optical distance of Fibre Optical Sensor point.
It correspondingly, is one landmark locations acquisition methods 100 of the utility model, for obtaining with reference to Fig. 2 in conjunction with above scheme
Take the landmark locations of Fibre Optical Sensor point.
The landmark locations acquisition methods are related to optical fiber sensing system, including but not limited to distributed temperature sensing (DTS), point
Cloth strain sensing (DSS), distributed acoustics sensor (DAS) and distribution type fiber-optic Bragg grating sensing；The present embodiment with
For distributed temperature sensor, this method 100 includes the following steps:
Step S120: if obtaining the endpoint terrestrial reference of the main section of composition optical fiber.
If optical fiber is divided into main section, the terrestrial reference of the endpoint of these line segments is then obtained.
Using the above method, handheld positioning device can be used along optical fiber route record position by field technician
Information, to further obtain the endpoint landmark information of optical fiber line segment；Method and step provided by the present application, technical staff need to only make
Terrestrial reference is recorded periodically with uniform distance interval with the preparatory automatic setting control function of positioning device, or only records optical line
The inflection point terrestrial reference of line；Optical fiber line segment refers to for optical fiber being divided into several straightways close to straight line in step S120, specifically can be with
If optical fiber is divided into main section, the available optical fiber inflection point terrestrial reference, if optical fiber is divided into including following methods
Do equidistant line segment.
When optical fiber laying structure is simple, for example, have the straightway region of large area, inflection point it is less when, can choose and directly obtain
The inflection point terrestrial reference for taking optical fiber, can greatly reduce labor workload；At this point, entire optical line is by being considered as by optical fiber starting point
What many line segments between terminal formed；The points to be collected by optical line by practical topology determine；If route is straight
Line then only needs the beginning and end two o'clock of collection path；Also, in order to further increase efficiency, application scheme can pass through
Above-mentioned steps are executed using APP on smart phone.
In other optical fiber laying structures, it can choose with uniform distance interval, periodically record optical fiber terrestrial reference；Once
Technical staff from the beginning record reach optical line by end, then this step complete；Wherein, the length of above-mentioned homogeneous section is preferably small
The spatial resolution of sensor-based system where the optical fiber；In order to the optical fiber route topological most accurately reflected on map,
It should will be set to be equal to or less than the spatial resolution of optical fiber sensing system；For example, if spatial resolution is 3 meters,
Interval can be set to 2 meters or 3 meters.
If landmark locations acquisition device provided by the utility model by the endpoint for the main section for obtaining optical fiber be it is effective,
Because the point quantity that it requires field technician to be recorded wants much less, or the landmark locations acquisition device provided can be by
Positioning device is automatically recorded with preset distance interval.
If above-mentioned steps S120 obtains the step of endpoint terrestrial reference of the main section of composition optical fiber, can be directly acquire it is described
The coordinate of map where Fibre Optical Sensor point, and replace using the coordinate of map the terrestrial reference of Fibre Optical Sensor point；In certain deployment
In the case of, field technician possibly can not set foot in optical line by field in；For example, optical line coil holder is set to skyscraper
Or the top of railway；In this case, optical line is parallel as the street where being likely to rail route or skyscraper；Cause
This, landmark locations acquisition device provided by the utility model can be directly using railway or the map terrestrial reference in street using this method
To replace actual optical fiber route terrestrial reference；Clearly this reduces the record of technical staff points, so in some cases, it is practical
Optical line by, can by the route of institute's monitoring objective (such as railway) route completely substitution.
Step S140: line segment where Fibre Optical Sensor point is obtained.
The step obtains the optical distance information of Fibre Optical Sensor point first；That is, Fibre Optical Sensor point is sensed apart from starting point
The distance of host position；The range information of Fibre Optical Sensor point can be directly acquired by optical time domain reflectometer (OTDR)；So
Afterwards, judge which line segment its specific location is set in.
Step S160: the ground of the Fibre Optical Sensor point is obtained according to the endpoint terrestrial reference of line segment where the Fibre Optical Sensor point
Mark.
Above-mentioned line segment is the line segment close to straight line, can be by geometric operation method, by where Fibre Optical Sensor point
The endpoint terrestrial reference of line segment, calculates the terrestrial reference of Fibre Optical Sensor point.
Specifically, the terrestrial reference of Fibre Optical Sensor point can according to circumstances, for two-dimentional (longitude, dimension) or three-dimensional (longitude, latitude
Degree, height above sea level)；Below by taking most complicated three-dimensional situation as an example, circular be can be such that
OTDR can be used using this method to obtain along optical line in landmark locations acquisition device provided by the utility model
The optical distance of each sensing points of line；This is the auto-programming for not needing human intervention.
The distance of each sensing point is defined as the optical distance with starting point (this is also the position for sensing host)；
The sensing data and terrestrial reference of its sensing point are shown as follows:
OTDR[N]{
distance；
sensing_data；
map_x；
map_y；
map_z；}
Wherein, in above structure, N is defined as total sensing points on optical fiber；Wherein, X-axis indicates that longitude, Y-axis indicate latitude
Degree, Z axis indicate height above sea level.
Using similar definition, the optical line of acquisition is recorded by the following seal of endpoint of upper line segment:
ROUTE[M]{
distance；
map_x；
map_y；
map_z；}
Note: wherein M is the total points recorded by technical staff along optical fiber route；Wherein, X-axis indicates longitude, Y-axis table
Show that latitude, Z axis indicate height above sea level.
Firstly, being based on the optical distance of specific sensing points [m] (OTDR [m] distance), two phases of the optical line in are obtained
Adjoint point:
ROUTE [n] .distance < OTDR [m] .distance < ROUTE [n+1] .distance
Wherein, n and n+1 indicates optical line by two adjacent points, and specific sensing points are on optical fiber in point n and point n+1
Between.
As shown in figure 3, the relative distance calculating between three points is as follows, it is sensing points [m] terrestrial reference X-axis numerical value meter below
It calculates:
L(n, m)=OTDR [m] .distance-ROUTE [n] .distance
L(n, n+1)=ROUTE [n+1] .distance-ROUTE [n] .distance
L(n_x, m_x)=OTDR [m] .map_x-ROUE [n] .map_x
L(n_x, n+1_x)=ROUTE [n+1] .map_x-ROUTE [n] .map_x
Wherein, L (n, m) indicates the distance of point m to point n, and L (n, n+1) indicates the distance of point n+1 to point n, L (n_x, m_x)
M point and n point are indicated in the projector distance of X-axis, L (n_x, n+1_x) indicates n point and n+1 point in the projector distance of X-axis.
Relationship between these relative distances can be indicated with following formula:
To which sensing points [m] terrestrial reference X-axis numerical value can pass through following formula derivation:
Similar, Y-axis and Z axis numerical value can be calculated with identical method and be obtained；
However, the route of optical fiber is a two-dimentional integration system in most of deployment scenarios；Such
In scene, Z axis terrestrial reference is not required；One special scene is exactly that the route of optical fiber is straight line；For example,
DTS fiber deployment is in a tunnel environment；The scene of such simplification, only X terrestrial reference are necessary；So in one-dimensional coordinate system
In, sensing point [m] X-axis terrestrial reference calculates as follows:
OTDR [m] .map_x=ROUTE [n] .map_x+L(n, m)
The landmark locations acquisition device and method of the utility model, if passing through the endpoint for the main section for obtaining composition optical fiber
Then terrestrial reference is obtained by line segment where judging Fibre Optical Sensor point according to the endpoint terrestrial reference of line segment where the Fibre Optical Sensor point
The terrestrial reference of the Fibre Optical Sensor point；And the landmark locations acquisition methods and device of the utility model are completely logical instead of tradition
The method that manual measurement obtains the landmark locations of Fibre Optical Sensor point is crossed, the cost and Fibre Optical Sensor point of fiber deployment are greatly reduced
The difficulty that terrestrial reference obtains.
Landmark locations acquisition device provided by the utility model requires field technician's point quantity to be recorded to lack
It is more, or can be automatically recorded by positioning device with preset distance interval；It is capable of sensing point on the determination map of high precision
Position；The process for eliminating using trouble matches the needs of sensing points manually, to use Fibre Optical Sensor host by passing through optical fiber
The distance of sensing point is found by temperature or strain variation.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it should not be understood as limiting the scope of the patent of the utility model.It should be pointed out that for the common of this field
For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to
In the protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (9)
1. a kind of landmark locations acquisition device, for obtaining the landmark locations of Fibre Optical Sensor point, which is characterized in that obtained including first
Modulus block, second obtain module and third acquisition module；Described first obtains module, described second obtains module and described
Third obtains module and is sequentially connected；
If the first acquisition module is used to obtain the endpoint terrestrial reference of the main section of composition optical fiber；
The second acquisition module is for line segment where obtaining Fibre Optical Sensor point；
The third obtains module and is used to obtain the Fibre Optical Sensor according to the endpoint terrestrial reference of line segment where the Fibre Optical Sensor point
The terrestrial reference of point.
2. landmark locations acquisition device according to claim 1, which is characterized in that the first acquisition module is further wrapped
Include first acquisition unit；The first acquisition unit is for obtaining the optical fiber inflection point terrestrial reference.
3. landmark locations acquisition device according to claim 1, which is characterized in that the first acquisition module is further wrapped
Include second acquisition unit；The second acquisition unit is for obtaining several homogeneous section endpoint terrestrial references of the optical fiber.
4. landmark locations acquisition device according to claim 1, which is characterized in that the first acquisition module is further wrapped
Include third acquiring unit；The coordinate of map where the third acquiring unit is used to obtain the Fibre Optical Sensor point.
5. landmark locations acquisition device according to claim 3, which is characterized in that the length of the homogeneous section is less than institute
The spatial resolution of sensor-based system where stating optical fiber.
6. landmark locations acquisition device according to claim 1, which is characterized in that described first, which obtains module, includes first
One or more in acquiring unit, second acquisition unit and third acquiring unit；The first acquisition unit is for obtaining
Take the optical fiber inflection point terrestrial reference；The second acquisition unit is for obtaining several homogeneous section endpoint terrestrial references of the optical fiber；It is described
The coordinate of map where third acquiring unit is used to obtain the Fibre Optical Sensor point.
7. landmark locations acquisition device according to claim 1, which is characterized in that further include intelligent terminal module；It is described
Intelligent terminal module is equipped with APP execution module；The APP execution module is used to execute the endpoint terrestrial reference for obtaining optical fiber.
8. landmark locations acquisition device according to claim 1, which is characterized in that it further include positioning device, the positioning
Device is used for along optical fiber route record position information, to further obtain the endpoint terrestrial reference of optical fiber line segment.
9. landmark locations acquisition device according to claim 1, which is characterized in that further include having optical time domain reflectometer；Institute
Optical time domain reflectometer is stated for obtaining the optical distance of Fibre Optical Sensor point.
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| CN201820850918.9U CN208536846U (en) | 2018-06-04 | 2018-06-04 | Landmark locations acquisition device |
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| CN201820850918.9U CN208536846U (en) | 2018-06-04 | 2018-06-04 | Landmark locations acquisition device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109995426A (en) * | 2019-03-25 | 2019-07-09 | 深圳供电局有限公司 | The long localization method of cable sheath and optical fiber vibration detection system |
-
2018
- 2018-06-04 CN CN201820850918.9U patent/CN208536846U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109995426A (en) * | 2019-03-25 | 2019-07-09 | 深圳供电局有限公司 | The long localization method of cable sheath and optical fiber vibration detection system |
| CN109995426B (en) * | 2019-03-25 | 2020-11-27 | 深圳供电局有限公司 | Optical cable skin length positioning method and optical fiber vibration detection system |
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