CN111337116A - Method and device for determining position of disturbance source, storage medium and electronic device - Google Patents
Method and device for determining position of disturbance source, storage medium and electronic device Download PDFInfo
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- CN111337116A CN111337116A CN201811550189.6A CN201811550189A CN111337116A CN 111337116 A CN111337116 A CN 111337116A CN 201811550189 A CN201811550189 A CN 201811550189A CN 111337116 A CN111337116 A CN 111337116A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H9/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
- G01H9/004—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means using fibre optic sensors
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H9/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H9/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
- G01H9/002—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means for representing acoustic field distribution
Abstract
The invention provides a method and a device for determining the position of a disturbance source, a storage medium and an electronic device, wherein the method comprises the following steps: determining the disturbance intensity of the detection optical fiber from a disturbance source; the detection optical fiber is distributed around an object to be detected and comprises a plurality of optical fiber sections; and determining the spatial position of a disturbance source in the object to be detected according to the spatial geometrical relationship between the disturbance intensity and the plurality of optical fiber sections included in the detection optical fiber. According to the invention, the problem that errors are easy to occur due to the fact that the operation condition can only be determined through manual observation in the concrete pouring process in the related technology is solved, and the efficiency of concrete pouring is improved.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to a method and an apparatus for determining a location of a disturbance source, a storage medium, and an electronic apparatus.
Background
In the concrete pouring process, the vibration of the concrete has normative requirements, and the requirements comprise: the displacement distance of the inserted vibrator is not more than 1.5 times of the action radius of the vibrator, the distance between the inserted vibrator and the side mold is kept between 50 and 100mm, and the depth of the inserted vibrator inserted into the lower-layer concrete is preferably between 50 and 100 mm; the vibration time of each vibration point is preferably 20-30s, and the degrees of stopping the concrete sinking, no bubbles and floating slurry on the surface are taken as the degrees. However, the above-mentioned demand has not been able to achieve a standardized detection by an effective detection technique in the prior art. The actual operation process is completed through manual observation, and the manual observation has a plurality of subjective and objective problems, such as: the radius of action of the displacement, the depth of insertion, cannot meet the specification without actual measurement relying solely on human eye observation.
In view of the above problems in the related art, no effective solution exists at present.
Disclosure of Invention
The embodiment of the invention provides a method and a device for determining the position of a disturbance source, a storage medium and an electronic device, which are used for at least solving the problem that errors are easy to occur because the operation condition can only be determined through manual observation in the concrete pouring process in the related technology.
According to an embodiment of the present invention, there is provided a method for determining a location of a perturbed source, including: determining the disturbance intensity of the detection optical fiber from a disturbance source; the detection optical fiber is distributed around an object to be detected and comprises a plurality of optical fiber sections; and determining the spatial position of the disturbance source in the object to be detected according to the space geometric relationship between the disturbance intensity and the plurality of optical fiber sections included in the detection optical fiber.
According to still another aspect of the embodiments of the present invention, there is provided an apparatus for determining a location of a perturbation source, including: the first determination module is used for determining the disturbance intensity of the detection optical fiber from a disturbance source; the detection optical fiber is distributed around an object to be detected and comprises a plurality of optical fiber sections; and the second determining module is used for determining the spatial position of the disturbance source in the object to be detected according to the spatial geometrical relationship between the disturbance intensity and the plurality of optical fiber sections included in the detection optical fiber.
According to a further embodiment of the present invention, there is also provided a storage medium having a computer program stored therein, wherein the computer program is arranged to perform the steps of any of the above method embodiments when executed.
According to yet another embodiment of the present invention, there is also provided an electronic device, including a memory in which a computer program is stored and a processor configured to execute the computer program to perform the steps in any of the above method embodiments.
In the embodiment of the invention, the disturbance intensity from the disturbance source to which the detection optical fiber is subjected is determined; the detection optical fiber is distributed around an object to be detected and comprises a plurality of optical fiber sections; and the spatial position of the disturbance source in the object to be detected is determined according to the space geometric relationship between the disturbance intensity and the plurality of optical fiber sections included in the detection optical fiber, so that the problem that errors are easy to occur in the concrete pouring process in the related technology due to the fact that the operation condition can only be determined through manual observation is solved, and the concrete pouring efficiency is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a flow diagram of a method of determining a location of a perturbed source according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a fiber perturbation system according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a coordinate system established by a transverse fiber distribution method according to an embodiment of the invention;
FIG. 4 is a diagram illustrating a mirror structure of a disturbance source according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a longitudinal fiber distribution method for establishing a coordinate system according to an alternative embodiment of the invention;
FIG. 6 is a schematic diagram of an apparatus for determining a location of a perturbation source according to an embodiment of the present invention;
fig. 7 is a schematic diagram of an alternative structure of an apparatus for determining a location of a perturbation source according to an embodiment of the present invention.
Detailed Description
The invention will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
Example 1
In the present embodiment, a method for determining a location of a perturbed source is provided, and fig. 1 is a flowchart of a method for determining a location of a perturbed source according to an embodiment of the present invention, as shown in fig. 1, the flowchart includes the following steps:
step S102, determining the disturbance intensity of the detection optical fiber from a disturbance source; the detection optical fiber is distributed around an object to be detected and comprises a plurality of optical fiber sections;
and step S104, determining the spatial position of a disturbance source in the object to be detected according to the space geometric relationship between the disturbance intensity and the plurality of optical fiber sections included in the detection optical fiber.
Determining the disturbance intensity from the disturbance source to which the detection optical fiber is subjected based on the step S102 and the step S104; the detection optical fiber is distributed around an object to be detected and comprises a plurality of optical fiber sections; and the spatial position of the disturbance source in the object to be detected is determined according to the space geometric relationship between the disturbance intensity and the plurality of optical fiber sections included in the detection optical fiber, so that the problem that errors are easy to occur in the concrete pouring process in the related technology due to the fact that the operation condition can only be determined through manual observation is solved, and the concrete pouring efficiency is improved
It should be noted that the optical fiber segment may be a straight line segment formed by optical fibers, and the detection optical fiber may be a polygonal structure formed by connecting a plurality of optical fiber segments end to end, or a combination of the polygonal structure and/or the polygonal structure, for example, a three-dimensional space mesh structure.
It should be noted that the three-dimensional model of the spatial structure in this embodiment at least includes: cuboid, cube, cylinder, elliptic cylinder.
In an optional implementation manner of this embodiment, the manner of determining the intensity of the disturbance from the disturbance source to the detection optical fiber involved in step S102 of this embodiment may be implemented by the following method steps:
s102-11, determining a three-dimensional model of the detection optical fiber and relative spatial coordinate values of end points of a plurality of edges corresponding to a plurality of optical fiber sections in the three-dimensional model, wherein the three-dimensional model represents the spatial structure of the detection optical fiber;
step S102-12, a point with the maximum disturbance intensity on each edge of the edges and a first coordinate value of the point with the maximum disturbance intensity are obtained.
In step S102-11, the method for determining the relative spatial coordinate values of the end points of the edges corresponding to the optical fiber segments in the three-dimensional model may be implemented as follows: establishing a first space rectangular coordinate system based on a three-dimensional model of the detection optical fiber; the detection optical fiber is composed of a plurality of optical fiber layers, planes where the optical fiber layers are located are parallel to each other, and the optical fiber layers comprise regular plane geometric figure optical fibers composed of a plurality of optical fiber sections; and determining a plurality of relative spatial coordinate values of the end points of the plurality of edges according to the first spatial rectangular coordinate system.
Based on the above steps S102-11 and S102-12, the manner for determining the spatial position of the disturbance source in the object to be measured according to the spatial geometric relationship between the disturbance intensity and the plurality of optical fiber segments included in the detection optical fiber in step S104 in this embodiment can be implemented as follows:
step S104-11, determining an endpoint of the mirror symmetry of the point of the first coordinate values and any endpoint of the edges based on the disturbance source; wherein, the point of a second coordinate value and four end points of any end point of an edge form a plane geometric figure;
step S104-12, acquiring a plurality of first difference values between energy representation values at any two connected ends in a plurality of plane geometric figures forming mirror symmetry, and a plurality of second difference values between energy loss values between end points at any two connected ends and a disturbance source;
s104-13, determining a plurality of second coordinate values of the disturbance source according to the plurality of first difference values, the plurality of second difference values and the lengths of two ends connected in the first space rectangular coordinate system in the plane geometric figure forming mirror symmetry;
and step S104-14, selecting a second coordinate value from the plurality of second coordinate values as the space position of the disturbance source.
The method of selecting one second coordinate value from the plurality of second coordinate values as the spatial position of the disturbance source may be selected in a least square method, that is, in step S104-14, the plurality of second coordinate values may be subjected to a spatial distance operation, and a spatial point is selected such that the spatial point satisfies the coordinate value of the least square method as the final disturbance source position point.
Through the steps S104-11 to S104-14, the space formed by the optical fiber may be divided into a plurality of subspaces, so as to respectively establish a rectangular coordinate system according to the plurality of subspaces, and further, a plurality of coordinate values (a first coordinate value and a plurality of second coordinate values) may be obtained, so that an optimal coordinate value is selected as a final coordinate value of the disturbance source.
In yet another optional implementation manner of this embodiment, the method of this embodiment may further include:
step S106, after the spatial position of the disturbance source in the object to be detected is determined according to the space geometric relationship between the disturbance intensity and the plurality of optical fiber sections included in the detection optical fiber, a point which is closest to the spatial position of the disturbance source in the spatial structure is obtained;
and step S108, extracting the phase of the disturbance source according to the nearest point from the disturbance source and carrying out spectrum analysis.
The present application will be illustrated with reference to specific embodiments of this example;
based on the blank of the existing concrete pouring vibration monitoring field, the specific implementation mode takes a distributed optical fiber vibration detection technology as a technical basis, and adopts a special optical fiber laying mode and a side mold input module to assist in completing accurate tracking of vibrator displacement; the signal is redrawn by setting the optimal disturbance monitoring point so as to characterize the characteristics of the concrete after vibration; and (4) finishing the real-time monitoring of the finished condition of the concrete pouring layered vibration specification, clearly marking the up-to-standard area and the down-to-standard area, and making conclusive judgment on the overall conforming condition.
FIG. 2 is a schematic structural diagram of an optical fiber perturbation system according to an embodiment of the present invention, as shown in FIG. 2, the system comprising: the concrete pouring model modeling input module, the disturbance source spatial position identification and optimization unit, the vibration source signal phase and real-time frequency spectrum analysis unit and the vibration source spatial displacement condition and vibration source signal characteristic simulation unit (the unit can analyze the current spatial position of the disturbance source, the vibration source energy characteristic and the vibration source vibration signal characteristic in real time to represent the concrete pouring vibration condition characteristic).
In the present embodiment, when laying the optical fiber, a fiber distribution manner that the lateral concrete pouring side mold is a space structure (rectangular parallelepiped structure) as shown in fig. 3 (for example, fig. 5 is a longitudinal fiber distribution manner) is adopted at the detection point, but not limited to the rectangular parallelepiped structure (may also be a cylinder, an elliptic cylinder, etc.), and in the fiber distribution manner, the lengths of the sides, width, and height of the rectangular parallelepiped are determined; and optical fiber distribution, wherein the number of layered layers is determined, a vertex of the cuboid, such as a point B in fig. 3, is used as a reference point, three intersected edges are used as a coordinate system, the calculation geometry of the disturbance spatial position can be modeled to a rectangular coordinate system (or a polar coordinate system) by the fiber distribution mode and the establishment of the coordinate system, and the strength ratio of the detection signal is used as the side length ratio of a geometric figure, so that the problem of accurate calculation of the spatial position of the disturbance source is solved.
Where (x, y, z, a (t), θ (t)), which is a spatial point with coordinates (x, y, z), is located within the fiber winding.
The detection optical fiber is laid according to a specific mode, such as a modeling mode of a cylinder, a square column and the like, and the modeling mode has the advantage that the coordinate point of each region (point) can be completely from the port of the test system A to the first vertex B (x) of the winding1,y1,z1,A1(t),θ1(t)), establishing a rectangular coordinate system by using the edges of the cuboid in the detection system, determining a position with a distance L1 vertically above the origin of coordinates as a point B and L1 as a layer spacing when distributing fibers, and determining the length and the width of the cuboid as L2 and L3 respectively, so that the middle point of each edge of the cuboid and the top point of each layer can be confirmed relative to the original coordinates.
Assuming that any point (x, y, z) in space is a vibration source, the energy modulus is represented by a (t), i.e. it is a function of time t, and the phase of the signal generated by the vibration source is represented by θ (t), i.e. the phase is a function of time t. The vibration source acts on the sensing optical fiber after being transmitted through a medium in the form of a disturbance field. The disturbance source signal is an acoustic wave signal, and the transmission loss of the acoustic wave signal in a uniform medium is delta. B, C, D, E, F, G on the vibration source and the detection fiber form right triangles Δ OGD, Δ OFC, and Δ OEB, respectively.
As shown in fig. 3, two points of a vertex D, H of the layer of a segment DH are points for fixing probe signals, where a point G is an undetermined point, an O-point vibration signal arrives on the segment DH, a disturbance signal can be detected at any point of the DH of the optical fiber, the point with the strongest intensity is a point G (OG is perpendicular to DH), a fixed point in the model in the system is a fixed probe point, and a point G is a non-determined probe point, in the detection system, taking the segment DH optical fiber as an example, the system is to sort the signal capacities acquired by distributed sampling points of the DH segment, take the largest point as a record, the point is an equivalent point of the point G, and the other points are discarded. The attenuation of the disturbance is proportional to the distance and therefore has
AG-AE＝δdOG-δdOE(1)
AE-AE`＝δdOE-δdOE`(2)
AG`-AG＝δdO|G`-δdOG(3)
AE`-AG`＝δdOE`-δdOG`(4)
Wherein A isG、AG`、AE、AE`Representing the characteristic value of disturbance energy detected at points G, G 'and E, E', dOG、dOE、dOE`、dOG`The lengths of the OG, OE ', OG' line segments are shown.
Let the X coordinates of points G ', E and G on each edge be the same as shown in fig. 2, where point G is queried by the system in a distributed traversal over the GH edge and comparing its energy radian, where the traversal over the edge is confirmed for each distributed point coordinate, and when the received perturbation energy is found to be strongest, the point is confirmed, connecting the four points into a rectangle, such as the rectangle in fig. 3GEE ' G '.
dOE＝dOE`(sinβ/sinα) (5)
dEE`＝dOE`(sin(π-α-β)/sinα) (6)
Because the coordinates G, E, E 'and G' are determined by distributed detection, and the point G is the point with the strongest energy on the DH line segment, the X coordinate of the disturbance point O should be the same as the X coordinate of the point G;
in addition, the HI edge is also checked for the strongest disturbance energy intensity point, and as shown in fig. 3, an energy point J is obtained, the spatial coordinate of which is known, and the Y coordinate of the J point is consistent with the coordinate of the disturbance source O point.
As shown in fig. 4, the disturbance source O (x, y, z) has its coordinates with respect to the origin, and x and y are measured when the most intense disturbance energy point in the DH line segment and the HI line segment is measured. In triangle OEE':
z＝sinα*dOE (7)
y＝cosα*dOE (8)
z＝sinβ*dOE`(9)
dEE`-y＝cosβ*dOE` (10)
whereindEE`、y、AG、AG`、AE、AE`The method comprises the following steps of (1) knowing; 8 unknowns and 10 equations, wherein equations (5) and (6) can be obtained by converting (7), (8) and (9), so that the matrix rank actually formed by the 10 equations is 8, that is, 8 unknowns and 8 linear equations, and a unique set of solutions can be obtained. Therefore, the coordinates of the point O can be solved, and in conclusion, the detection device completes the positioning of the position of the disturbance point.
In the above alternative embodiment, the laid optical fiber is a rectangular parallelepiped, and other spatial configurations can be realized according to the above steps S102 to S112.
In addition, because disturbance source O point is not ideal mass point but an object with a certain volume, the disturbance that it produced is receiving whole object influence on being surveyed the point, further can lay the mode of optic fibre layering with a plurality of little cuboids of cuboid layering, not only can accomplish the monitoring of concrete pouring in-process layering vibration, can do the position optimization of disturbance source O point simultaneously, the concrete scheme is: after each cube finishes the position location of the O point, the output result is subjected to space distance operation, and a space point is taken to enable the space point to meet the coordinate value of the least square method, namely the point is considered as the final disturbance source position point.
It should be noted that, after the optimal spatial displacement point is completed, a point is regressed and searched in the laid optical fiber segment so that the position of the point is closest to the disturbance source, the point is used as the phase of the disturbance source to extract the frequency spectrum of the disturbance source for analysis, and if the driving signal characteristic of the disturbance source is stable, the ideal condition of the recovery signal tends to be stable and similar to the signal characteristic of the disturbance element. The instability of the recovery signal can be directly caused by the fact that the dynamic changes such as no settlement, unevenness, bubbles and the like are not achieved in the concrete pouring vibration effect. Therefore, whether the effect characteristics of concrete pouring and vibrating meet the standard requirements or not is reversely deduced.
Through the above description of the embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but the former is a better implementation mode in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (such as a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.
Example 2
In this embodiment, a device for determining a location of a perturbation source is further provided, and the device is used to implement the foregoing embodiments and preferred embodiments, which have already been described and are not described again. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.
Fig. 6 is a schematic structural diagram of an apparatus for determining a location of a perturbation source according to an embodiment of the present invention, as shown in fig. 6, the apparatus includes: a first determining module 62, configured to determine a disturbance intensity of the detection optical fiber from a disturbance source; the detection optical fiber is distributed around an object to be detected and comprises a plurality of optical fiber sections; and the second determining module 64 is coupled to the first determining module 62 and configured to determine a spatial position of a disturbance source in the object to be detected according to a spatial geometric relationship between the disturbance intensity and the plurality of optical fiber segments included in the detection optical fiber.
Optionally, the first determining module 62 may further include: the first determining module includes: the device comprises a first determining unit, a second determining unit and a third determining unit, wherein the first determining unit is used for determining a three-dimensional model of the detection optical fiber and relative spatial coordinate values of end points of a plurality of edges corresponding to a plurality of optical fiber sections in the three-dimensional model, and the three-dimensional model represents the spatial structure of the detection optical fiber; the first acquisition unit is used for determining a three-dimensional model of the detection optical fiber and relative spatial coordinate values of end points of a plurality of edges corresponding to the plurality of optical fiber sections in the three-dimensional model, wherein the three-dimensional model represents the spatial structure of the detection optical fiber.
Wherein the first determination unit includes: the building subunit is used for building a first space rectangular coordinate system based on the three-dimensional model of the detection optical fiber; the detection optical fiber is composed of a plurality of optical fiber layers, planes where the optical fiber layers are located are parallel to each other, and the optical fiber layers comprise regular plane geometric figure optical fibers composed of a plurality of optical fiber sections.
Optionally, the second determining module includes: the second determining unit is used for determining an end point of the mirror symmetry of the point of the first coordinate values and any end point of the edges based on the disturbance source; wherein, the point of a second coordinate value and four end points of any end point of an edge form a plane geometric figure; the second acquisition unit is used for acquiring a plurality of first difference values between energy representation values at any two connected ends in a plurality of plane geometric figures forming mirror symmetry and a plurality of second difference values between energy loss values between end points at any two connected ends and a disturbance source; a third determining unit, configured to determine a plurality of second coordinate values of the disturbance source according to the plurality of first difference values, the plurality of second difference values, and lengths of two ends connected in the first rectangular spatial coordinate system in the plane geometry forming mirror symmetry; and the selecting unit is used for selecting a second coordinate value from the plurality of second coordinate values as the spatial position of the disturbance source.
Fig. 7 is a schematic diagram of an alternative structure of an apparatus for determining a location of a perturbation source according to an embodiment of the present invention, as shown in fig. 7, the apparatus includes: an obtaining module 72, coupled to the second determining module 64, configured to obtain a point in the three-dimensional model closest to a spatial position of the disturbance source after determining the spatial position of the disturbance source in the object to be detected according to the spatial geometric relationship between the disturbance intensity and the plurality of optical fiber segments included in the detection optical fiber; and the processing module 74 is coupled to the obtaining module 72, and is configured to extract the phase of the disturbance source according to the nearest point to the disturbance source and perform spectrum analysis.
It should be noted that, the above modules may be implemented by software or hardware, and for the latter, the following may be implemented, but not limited to: the modules are all positioned in the same processor; alternatively, the modules are respectively located in different processors in any combination.
Example 3
Embodiments of the present invention also provide a storage medium having a computer program stored therein, wherein the computer program is arranged to perform the steps of any of the above method embodiments when executed.
Alternatively, in the present embodiment, the storage medium may be configured to store a computer program for executing the steps of:
s1, determining the disturbance intensity of the detection optical fiber; the detection optical fiber is distributed around an object to be detected and comprises a plurality of optical fiber sections;
and S2, determining the spatial position of the disturbance source in the object to be detected according to the spatial geometrical relationship between the disturbance intensity and the plurality of optical fiber sections included in the detection optical fiber.
Optionally, in this embodiment, the storage medium may include, but is not limited to: various media capable of storing computer programs, such as a usb disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk.
Embodiments of the present invention also provide an electronic device comprising a memory having a computer program stored therein and a processor arranged to run the computer program to perform the steps of any of the above method embodiments.
Optionally, the electronic apparatus may further include a transmission device and an input/output device, wherein the transmission device is connected to the processor, and the input/output device is connected to the processor.
Optionally, in this embodiment, the processor may be configured to execute the following steps by a computer program:
s1, determining the disturbance intensity of the detection optical fiber from the disturbance source; the detection optical fiber is distributed around an object to be detected and comprises a plurality of optical fiber sections;
and S2, determining the spatial position of the disturbance source in the object to be detected according to the spatial geometrical relationship between the disturbance intensity and the plurality of optical fiber sections included in the detection optical fiber.
Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation manners, and this embodiment is not described herein again.
It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the principle of the present invention should be included in the protection scope of the present invention.
Claims (12)
1. A method of determining a perturbed source location, comprising:
determining the disturbance intensity of the detection optical fiber from a disturbance source; the detection optical fiber is distributed around an object to be detected and comprises a plurality of optical fiber sections;
and determining the spatial position of the disturbance source in the object to be detected according to the space geometric relationship between the disturbance intensity and the plurality of optical fiber sections included in the detection optical fiber.
2. The method of claim 1, wherein determining the strength of the disturbance from the disturbance source to which the detection fiber is subjected comprises:
determining a three-dimensional model of the detection optical fiber and relative spatial coordinate values of end points of a plurality of edges corresponding to a plurality of optical fiber sections in the three-dimensional model, wherein the three-dimensional model represents a spatial structure of the detection optical fiber;
and acquiring a point with the maximum disturbance intensity on each edge of the edges and a first coordinate value of the point with the maximum disturbance intensity.
3. The method of claim 2, wherein determining relative spatial coordinate values of the endpoints of the plurality of edges corresponding to the plurality of fiber segments in the three-dimensional model comprises:
establishing a first space rectangular coordinate system based on the three-dimensional model of the detection optical fiber; the detection optical fiber is composed of a plurality of optical fiber layers, planes where the optical fiber layers are located are parallel to each other, and the optical fiber layers comprise regular plane geometric figure optical fibers composed of a plurality of optical fiber sections;
and determining a plurality of relative spatial coordinate values of the end points of the plurality of edges according to the first spatial rectangular coordinate system.
4. The method of claim 3, wherein determining the spatial position of the disturbance source in the object to be tested according to the spatial geometrical relationship between the disturbance intensity and the plurality of optical fiber segments included in the detection optical fiber comprises:
determining an end point of a plurality of points of the first coordinate values and any end point of a plurality of edges in mirror symmetry based on the disturbance source; wherein, the point of a second coordinate value and four end points of any end point of an edge form a plane geometric figure;
acquiring a plurality of first difference values between energy representation values at any two connected ends in a plurality of plane geometric figures forming mirror symmetry, and a plurality of second difference values between energy loss values between end points at any two connected ends and the disturbance source;
determining a plurality of second coordinate values of the disturbance source according to the plurality of first difference values, the plurality of second difference values and the lengths of two connected ends in the first space rectangular coordinate system in a plane geometry figure forming mirror symmetry;
and selecting a second coordinate value from a plurality of second coordinate values as the spatial position of the disturbance source.
5. The method according to any one of claims 2 to 4, wherein after determining the spatial position of the disturbance source in the object to be tested from the spatial geometrical relationship between the disturbance intensity and the plurality of optical fiber segments comprised by the detection optical fiber, the method further comprises:
acquiring a point which is closest to the spatial position of the disturbance source in the three-dimensional model;
and extracting the phase of the disturbance source according to the nearest point to the disturbance source and carrying out spectrum analysis.
6. An apparatus for determining a location of a perturbed source, comprising:
the first determination module is used for determining the disturbance intensity of the detection optical fiber from a disturbance source; the detection optical fiber is distributed around an object to be detected and comprises a plurality of optical fiber sections;
and the second determining module is used for determining the spatial position of the disturbance source in the object to be detected according to the spatial geometrical relationship between the disturbance intensity and the plurality of optical fiber sections included in the detection optical fiber.
7. The apparatus of claim 6, wherein the first determining module comprises:
the optical fiber detection device comprises a first determining unit, a second determining unit and a control unit, wherein the first determining unit is used for determining a three-dimensional model of the detection optical fiber and relative spatial coordinate values of end points of a plurality of edges corresponding to a plurality of optical fiber sections in the three-dimensional model, and the three-dimensional model represents the spatial structure of the detection optical fiber;
the first obtaining unit is used for obtaining a point with the maximum disturbance intensity on each edge of the edges and a first coordinate value of the point with the maximum disturbance intensity.
8. The apparatus according to claim 7, wherein the first determining unit comprises:
the establishing subunit is used for establishing a first space rectangular coordinate system based on the three-dimensional model of the detection optical fiber; the detection optical fiber is composed of a plurality of optical fiber layers, planes where the optical fiber layers are located are parallel to each other, and the optical fiber layers comprise regular plane geometric figure optical fibers composed of a plurality of optical fiber sections;
and the determining subunit is used for determining a plurality of relative spatial coordinate values of the end points of the plurality of edges according to the first spatial rectangular coordinate system.
9. The apparatus of claim 8, wherein the second determining module comprises:
a second determining unit, configured to determine, based on the disturbance source, an end point where a point of the plurality of first coordinate values is mirror-symmetrical to any end point of the plurality of edges; wherein, the point of a second coordinate value and four end points of any end point of an edge form a plane geometric figure;
the second acquisition unit is used for acquiring a plurality of first difference values between energy representation values at any two connected ends in a plurality of plane geometric figures forming mirror symmetry and a plurality of second difference values between energy loss values between end points at any two connected ends and the disturbance source;
a third determining unit, configured to determine a plurality of second coordinate values of the disturbance source according to the plurality of first difference values, the plurality of second difference values, and lengths of two ends of a plane geometry that forms mirror symmetry in the first spatial rectangular coordinate system;
and the selecting unit is used for selecting a second coordinate value from the second coordinate values as the space position of the disturbance source.
10. The apparatus of any one of claims 7 to 9, further comprising:
an obtaining module, configured to obtain a point in the stereoscopic model closest to a spatial position of a disturbance source after determining the spatial position of the disturbance source in an object to be detected according to a spatial geometric relationship between the disturbance intensity and a plurality of optical fiber segments included in the detection optical fiber;
and the processing module is used for extracting the phase of the disturbance source according to the nearest point to the disturbance source and carrying out spectrum analysis.
11. A storage medium, in which a computer program is stored, wherein the computer program is arranged to perform the method of any of claims 1 to 5 when executed.
12. An electronic device comprising a memory and a processor, wherein the memory has stored therein a computer program, and wherein the processor is arranged to execute the computer program to perform the method of any of claims 1 to 5.
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| PCT/CN2019/126419 WO2020125692A1 (en) | 2018-12-18 | 2019-12-18 | Method and device for determining position of disturbance source, storage medium, and electronic device |
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| CN112361960A (en) * | 2020-11-17 | 2021-02-12 | 苏交科集团检测认证有限公司 | Concrete vibrator accurate positioning method and system based on intelligent optical fiber sensing |
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