CN111580152A - Method and device for positioning point source interference source in seismic ground electric field observation - Google Patents
Method and device for positioning point source interference source in seismic ground electric field observation Download PDFInfo
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Abstract
The invention relates to a method and a device for positioning a point source interference source in seismic ground field observation, which respectively obtain a first real-time electric field intensity expression, a second real-time electric field intensity expression and a third real-time electric field intensity expression of at least three electrode pairs, wherein the three electrode pairs are determined by combining a reference electrode and at least two measuring electrodes in pairs, and the reference electrode and the at least two measuring electrodes form a polygonal shape; respectively determining a first interference electric field intensity expression, a second interference electric field intensity expression and a third interference electric field intensity expression of the three electrode pairs according to the first real-time electric field intensity expression, the second real-time electric field intensity expression and the third real-time electric field intensity expression; and positioning the position of the point source interference source according to the first interference electric field intensity expression, the second interference electric field intensity expression and the third interference electric field intensity expression, thereby timely eliminating the influence of the interference source on the observation of the earthquake ground electric field and ensuring the waveform accuracy of the ground electric field observation.
Description
Technical Field
The invention relates to the technical field of seismic ground electric field interference source detection, in particular to a method and a device for positioning a point source interference source in seismic ground electric field observation.
Background
With the development of urbanization in China, the conditions of industrial and agricultural electricity utilization around the earthquake ground electric field observation station are more and more complex, the electric leakage of the industrial and agricultural electricity utilization around the station to the ground can cause interference to the ground electric field observation, the interference signal is superposed in the normal ground electric field change to cause large disturbance to the observation data, the ground electric field observation form is distorted in severe cases, the ground resistivity observation variance is increased, and the observation data quality and the application efficiency are further influenced. The interference sources can be divided into dipole sources and approximate point sources according to the interference types encountered by the actual stations, and the interference sources are distributed on the earth surface.
Therefore, how to quickly and accurately locate the position information of the point source interference source is a technical problem to be solved for those skilled in the art.
Disclosure of Invention
In view of this, the present invention aims to overcome the deficiencies of the prior art, and provides a method and an apparatus for positioning a point source interference source in seismic ground field observation, and a point source interference source is discovered in time, a leakage position is found, and the accuracy of seismic ground field observation is ensured.
In order to achieve the purpose, the invention adopts the following technical scheme:
on one hand, the method for positioning the point source interference source in the seismic geoelectric field observation comprises the following steps:
respectively obtaining a first real-time electric field intensity expression, a second real-time electric field intensity expression and a third real-time electric field intensity expression of at least three electrode pairs, wherein the three electrode pairs are determined by combining a reference electrode and at least two measuring electrodes in pairs, and the reference electrode and the at least two measuring electrodes form a polygonal shape;
respectively determining a first interference electric field intensity expression, a second interference electric field intensity expression and a third interference electric field intensity expression of the three electrode pairs according to the first real-time electric field intensity expression, the second real-time electric field intensity expression and the third real-time electric field intensity expression;
and positioning the position of the point source interference source according to the first interference electric field strength expression, the second interference electric field strength expression and the third interference electric field strength expression.
Optionally, before the obtaining the first real-time electric field intensity expression, the second real-time electric field intensity expression, and the third real-time electric field intensity expression of the at least three electrode pairs, respectively, the method further includes:
measuring a first natural potential difference, a second natural potential difference and a third natural potential difference between the electrodes in each of the electrode pairs;
acquiring a first distance, a second distance and a third distance between electrodes in each electrode pair;
determining a first self-heating electric field intensity expression in the three electrode pairs according to the first self-potential difference and the first distance;
determining a second self-heating electric field intensity expression in the three electrode pairs according to the second self-potential difference and the second distance;
and determining a third self-heating electric field intensity expression in the three electrode pairs according to the third self-potential difference and the third distance.
Optionally, the determining a first disturbing electric field strength expression, a second disturbing electric field strength expression and a third disturbing electric field strength expression of the three electrode pairs according to the first real-time electric field strength expression, the second real-time electric field strength expression and the third real-time electric field strength expression respectively includes:
calculating the difference between the first real-time electric field intensity expression and the first natural electric field intensity expression to obtain a first interference electric field intensity expression;
calculating the difference between the second real-time electric field intensity expression and the second natural electric field intensity expression to obtain a second interference electric field intensity expression;
and calculating the difference between the third real-time electric field intensity expression and the third natural electric field intensity expression to obtain a third interference electric field intensity expression.
Optionally, the locating the position of the point source interference source according to the first expression of the interference electric field strength, the second expression of the interference electric field strength, and the third expression of the interference electric field strength includes:
determining coordinate information of each measuring electrode based on a rectangular coordinate system;
and respectively inputting the coordinate information of each measuring electrode to the first interference electric field intensity expression, the second interference electric field intensity expression and the third interference electric field intensity expression to obtain the coordinate information of the point source interference source.
Optionally, before determining the coordinate information of each measuring electrode based on the rectangular coordinate system, the method further includes:
and establishing a rectangular coordinate system by taking the reference electrode as a coordinate origin.
In another aspect, a positioning device for a point source interference source in seismic geoelectric field observation includes:
the acquisition module is used for respectively acquiring a first real-time electric field intensity expression, a second real-time electric field intensity expression and a third real-time electric field intensity expression of at least three electrode pairs, wherein the three electrode pairs are determined by combining a reference electrode and at least two measuring electrodes in pairs, and the reference electrode and the at least two measuring electrodes form a polygonal shape;
a determining module, configured to determine a first interference electric field intensity expression, a second interference electric field intensity expression, and a third interference electric field intensity expression of the three electrode pairs according to the first real-time electric field intensity expression, the second real-time electric field intensity expression, and the third real-time electric field intensity expression, respectively;
and the positioning module is used for positioning the position of the point source interference source according to the first interference electric field strength expression, the second interference electric field strength expression and the third interference electric field strength expression.
Optionally, the positioning apparatus further includes a natural electric field strength determining module, configured to:
measuring a first natural potential difference, a second natural potential difference and a third natural potential difference between the electrodes in each of the electrode pairs;
acquiring a first distance, a second distance and a third distance between electrodes in each electrode pair;
determining a first self-heating electric field intensity expression in the three electrode pairs according to the first self-potential difference and the first distance;
determining a second self-heating electric field intensity expression in the three electrode pairs according to the second self-potential difference and the second distance;
and determining a third self-heating electric field intensity expression in the three electrode pairs according to the third self-potential difference and the third distance.
Optionally, the determining module is specifically configured to:
calculating the difference between the first real-time electric field intensity expression and the first natural electric field intensity expression to obtain a first interference electric field intensity expression;
calculating the difference between the second real-time electric field intensity expression and the second natural electric field intensity expression to obtain a second interference electric field intensity expression;
and calculating the difference between the third real-time electric field intensity expression and the third natural electric field intensity expression to obtain a third interference electric field intensity expression.
Optionally, the positioning module is specifically configured to:
determining coordinate information of each measuring electrode based on a rectangular coordinate system;
and respectively inputting the coordinate information of each measuring electrode to the first interference electric field intensity expression, the second interference electric field intensity expression and the third interference electric field intensity expression to obtain the coordinate information of the point source interference source.
Optionally, the positioning apparatus further includes a coordinate system establishing module, configured to:
and establishing a rectangular coordinate system by taking the reference electrode as a coordinate origin.
The invention discloses a method and a device for positioning a point source interference source in seismic ground field observation, which comprises the following steps: respectively obtaining a first real-time electric field intensity expression, a second real-time electric field intensity expression and a third real-time electric field intensity expression of at least three electrode pairs, wherein the three electrode pairs are determined by combining a reference electrode and at least two measuring electrodes in pairs, and the reference electrode and the at least two measuring electrodes form a polygonal shape; respectively determining a first interference electric field intensity expression, a second interference electric field intensity expression and a third interference electric field intensity expression of the three electrode pairs according to the first real-time electric field intensity expression, the second real-time electric field intensity expression and the third real-time electric field intensity expression; according to the first interference electric field intensity expression, the second interference electric field intensity expression and the third interference electric field intensity expression, the position of the point source interference source is positioned, so that the position information of the point source interference source can be accurately obtained, the influence of the electric field of the point source interference source on the ground electric field observation waveform is timely eliminated, and the accuracy of the seismic observation data is ensured.
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In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic flow chart of a method for positioning a point source interference source in a seismic geoelectric field observation according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the arrangement of electrodes in the positioning method of the point source interference source in the seismic geoelectric field observation in FIG. 1;
FIG. 3 is a schematic illustration of a point source of interference radiating electric fields;
FIG. 4 is a schematic diagram of a power source interference source location;
fig. 5 is a schematic structural diagram of a positioning device for a point source interference source in a seismic geoelectric field observation according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
Fig. 1 is a schematic flow chart of a method for positioning a point source interference source in a seismic geoelectric field observation according to an embodiment of the present invention.
As shown in fig. 1, the method for positioning a point source interference source in an observation of a geodetic seismic field of the present embodiment includes the following steps:
s11, respectively obtaining a first real-time electric field intensity expression, a second real-time electric field intensity expression and a third real-time electric field intensity expression of at least three electrode pairs, wherein the three electrode pairs are determined by combining a reference electrode and at least two measuring electrodes in pairs, and the reference electrode and the at least two measuring electrodes form a polygonal shape.
Specifically, the method generally further includes, before the real-time acquisition: measuring a first natural potential difference, a second natural potential difference and a third natural potential difference between the electrodes in each electrode pair; acquiring a first distance, a second distance and a third distance between electrodes in each electrode pair; determining a first self-heating electric field intensity expression in the three electrode pairs according to the first self-potential difference and the first distance; determining a second self-heating electric field intensity expression in the three electrode pairs according to the second self-potential difference and the second distance; and determining a third self-heating electric field intensity expression in the three electrode pairs according to the third self-potential difference and the third distance. The measuring electrodes and the reference electrodes are arranged in advance, and the positions of the measuring electrodes are fixed, namely, the distance between the measuring electrodes is fixed, namely, after the reference electrodes and the measuring electrodes are buried on the ground, the distance between the electrodes is fixed, and the natural electric field intensity between the electrodes is also fixed. The potential difference between two electrodes is measured, and then since the distance between the two electrodes is a known quantity, the ratio of the potential difference to the distance is an electric field intensity expression of the current electrode pair, and a first natural electric field intensity expression, a second natural electric field intensity expression and a third natural electric field intensity expression can be obtained in the same way. Similarly, when the real-time electric field intensity between the electrode pairs is measured, the same method can be adopted, the potential difference between the electrode pairs is measured, and then the ratio of the potential difference to the distance value is calculated, so that the first real-time electric field intensity expression, the second real-time electric field intensity expression and the third real-time electric field intensity expression can be obtained.
S12, respectively determining a first interference electric field strength expression, a second interference electric field strength expression and a third interference electric field strength expression of the three electrode pairs according to the first real-time electric field strength expression, the second real-time electric field strength expression and the third real-time electric field strength expression.
Because the interference of point source interference source, make the electric field intensity value between the electrode pair change, when point source interference source disturbs, it is in order radial production electric field, thereby realized disturbing the stack of electric field and natural electric field, the change of having led to measuring real-time electric field, it says reversely, the real-time electric field intensity value that measures just is the sum of natural electric field intensity value and disturbing electric field intensity value, consequently, utilize real-time electric field intensity value to subtract natural electric field intensity value alright obtain disturbing field intensity value, for the follow-up specific position of being convenient for calculate the interference source, can express with the expression, specifically can be: performing difference calculation on the first real-time electric field intensity expression and the first natural electric field intensity expression to obtain a first interference electric field intensity expression; and performing difference calculation on the second real-time electric field intensity expression and the second natural electric field intensity expression to obtain a second interference electric field intensity expression, and performing difference calculation on the third real-time electric field intensity expression and the third natural electric field intensity expression to obtain a third interference electric field intensity expression.
S13, positioning the point source interference source according to the first interference electric field strength expression, the second interference electric field strength expression and the third interference electric field strength expression.
Specifically, before positioning, a rectangular coordinate system is established by taking the reference electrode as an origin of coordinates, and then since the positions among the electrodes are fixed, when the reference electrode is taken as the origin of coordinates, the coordinate information of each measuring electrode can be directly obtained; the specific unit value can be any value set by a user, and the relative unit value is relative, so that the determination of the coordinate is not influenced by the value, and the relative position can be more accurately represented. And then respectively inputting the coordinate information of each measuring electrode to a first interference electric field intensity expression, a second interference electric field intensity expression and a third interference electric field intensity expression to obtain the coordinate information of the point source interference source.
FIG. 2 is a schematic diagram of the arrangement of electrodes in the positioning method of the point source interference source in the seismic geoelectric field observation in FIG. 1. In order to make the present solution more clearly understood, the present solution can be explained from the perspective of reverse demonstration, as shown in fig. 2, four electrode arrangement manners as shown in the figure can be adopted, one of them can be selected for measurement in actual station observation, taking (d) electrode arrangement manner as an example for explanation, there are one reference electrode O1 or O2 and four measurement electrodes a1, a2, B1, B2 as an example for explanation of a certain small region, and an "L" electrode arrangement manner is adopted at the same time. The central common electrode O1/O2 is disposed at the same position, and can be used simultaneously or only one electrode is used as a spare, and the following description is based on the fact that only O1 and O2 are used as the spare, and the other four electrodes A1, A2, B1, B2 and the common electrode O1 form 6 groups of ground electric field observation in three directions, namely a north-south direction two group (B1O1 and B2O1), an east-west direction two group (A1O1 and A2O1) and an oblique direction two group (A1B1 and A2B 2).
According to the principle of observing the earth electric field, the potentials of five electrodes are respectively set as UO、UA1、UA2、UB1And UB2From the electric field definition, 4 sets of electric field values can be obtained, namely:
in the formula (1), the numerator is the potential difference between two electrodes, the denominator is the distance between two electrodes, E1-E4The value of the electric field observed by the instrument is a known quantity and has the unit of mV/km.
Fig. 3 is a schematic illustration of a point source interference source radiating electric field.
As shown in fig. 3, when a point source of interference Q leaks current I from the ground surface, the electric field generated by the current lines in the ground is distributed radially around Q. In order to calculate the influence of a point source interference source Q on each electrode in the earth electric field observation, a potential value which is R meters away from a point source interference source Q point needs to be calculated, if any one electrode in the earth electric field observation is P, P is at the earth surface position, the distance from P to the point source interference source Q is R, the potential and the electric field intensity of the P point are respectively:
in actual observation, all 5 measuring points of the electrode distribution area are influenced by a stable current field formed by the point source. Setting interference source Q to any measuring point P on earth surfaceiAre each Ri(i-1.2.3.4.5 in m), and the potentials of the interference source at the measurement points PO, PA2, PA1, PB2 and PB1 are U'O、U′A1、U′A2、U′B1And U'B2According to the formula (2), the interference amplitude of Q generated by different distance electrodes is calculated and obtained, and the interference amplitude is superposed on the original potential UO、UA1、UA2、UB1And UB2Thus, the electric field value affected by the interference can be obtained.
In the formula (4), I is leakage current, rho is resistivity value of the observation region, and are all constant values, and are set
Equation (4) can be simplified to:
in the earth electric field observation, the normal observation electric field value E, the interference electric field value E' and the distance between the electrodes are known quantities, and the constant C can be eliminated by dividing the equation of the formula (5) by two to obtain an equation set (6) consisting of three equations.
In the formula (6), Ki(i 1, 2, 3) is a known quantity, and the distances Ro, R from the interference source Q to the measuring electrodesA1、RB1、RA2And RB2Are five unknowns.
FIG. 4 is a schematic diagram of a point source interference source location; therefore, in order to obtain the five unknowns, the position relationship between the point source of the point source interference source and each electrode observed by the earth field is placed in the same rectangular coordinate system, as shown in fig. 4, in one rectangular coordinate system, the position of the measuring electrode is fixed, the relative position coordinate is known, the coordinate of the O point is (0,0), the coordinate of the Q point source interference source is (x, y), the distance from the interference source Q to each measuring electrode can be calculated by using the interference source coordinate and the position coordinate of each measuring electrode, the calculation mode of the formula (7) is adopted, and the formula (7) is substituted into the formula (6), so that the values of x and y can be calculated, and therefore, the position of the interference source is located.
The method for positioning the point source interference source in the seismic ground field observation adopted by the embodiment comprises the following steps: respectively obtaining a first real-time electric field intensity expression, a second real-time electric field intensity expression and a third real-time electric field intensity expression of at least three electrode pairs, wherein the three electrode pairs are determined by combining a reference electrode and at least two measuring electrodes in pairs, and the reference electrode and the at least two measuring electrodes form a polygonal shape; respectively determining a first interference electric field intensity expression, a second interference electric field intensity expression and a third interference electric field intensity expression of the three electrode pairs according to the first real-time electric field intensity expression, the second real-time electric field intensity expression and the third real-time electric field intensity expression; according to the first interference electric field intensity expression, the second interference electric field intensity expression and the third interference electric field intensity expression, the position of the point source interference source is positioned, so that the position information of the point source interference source can be accurately obtained, the influence of the electric field of the point source interference source on the ground electric field observation waveform is timely eliminated, and the accuracy of the seismic observation data is ensured.
Fig. 5 is a schematic structural diagram of a positioning device for a point source interference source in a seismic geoelectric field observation according to an embodiment of the present invention.
As shown in fig. 5, the present embodiment provides a positioning device for a point source interference source in geodetic seismology observation, including:
an obtaining module 10, configured to obtain a first real-time electric field intensity expression, a second real-time electric field intensity expression, and a third real-time electric field intensity expression of at least three electrode pairs, where the three electrode pairs are determined by combining two reference electrodes and at least two measurement electrodes, and the reference electrodes and the at least two measurement electrodes form a polygon shape;
a determining module 20, configured to determine a first interference electric field strength expression, a second interference electric field strength expression, and a third interference electric field strength expression of the three electrode pairs according to the first real-time electric field strength expression, the second real-time electric field strength expression, and the third real-time electric field strength expression, respectively;
and the positioning module 30 is configured to position the position of the point source interference source according to the first interference electric field strength expression, the second interference electric field strength expression and the third interference electric field strength expression.
The invention discloses a positioning device of a point source interference source in seismic ground field observation, which comprises: respectively obtaining a first real-time electric field intensity expression, a second real-time electric field intensity expression and a third real-time electric field intensity expression of at least three electrode pairs, wherein the three electrode pairs are determined by combining a reference electrode and at least two measuring electrodes in pairs, and the reference electrode and the at least two measuring electrodes form a polygonal shape; respectively determining a first interference electric field intensity expression, a second interference electric field intensity expression and a third interference electric field intensity expression of the three electrode pairs according to the first real-time electric field intensity expression, the second real-time electric field intensity expression and the third real-time electric field intensity expression; according to the first interference electric field intensity expression, the second interference electric field intensity expression and the third interference electric field intensity expression, the position of the point source interference source is positioned, so that the position information of the point source interference source can be accurately obtained, the influence of the electric field of the point source interference source on the ground electric field observation waveform is timely eliminated, and the accuracy of the seismic observation data is ensured.
Further, the above positioning apparatus further includes a natural electric field strength determining module, configured to:
measuring a first natural potential difference, a second natural potential difference and a third natural potential difference between the electrodes in each electrode pair;
acquiring a first distance, a second distance and a third distance between electrodes in each electrode pair;
determining a first self-heating electric field intensity expression in the three electrode pairs according to the first self-potential difference and the first distance;
determining a second self-heating electric field intensity expression in the three electrode pairs according to the second self-potential difference and the second distance;
and determining a third self-heating electric field intensity expression in the three electrode pairs according to the third self-potential difference and the third distance.
Further, the determining module 20 is specifically configured to:
performing difference calculation on the first real-time electric field intensity expression and the first natural electric field intensity expression to obtain a first interference electric field intensity expression;
performing difference calculation on the second real-time electric field intensity expression and the second natural electric field intensity expression to obtain a second interference electric field intensity expression;
and performing difference calculation on the third real-time electric field intensity expression and the third natural electric field intensity expression to obtain a third interference electric field intensity expression.
Further, the positioning module 30 is specifically configured to:
and establishing a rectangular coordinate system by taking the reference electrode as a coordinate origin.
Determining coordinate information of each measuring electrode based on the rectangular coordinate system;
and respectively inputting the coordinate information of each measuring electrode to a first interference electric field intensity expression, a second interference electric field intensity expression and a third interference electric field intensity expression to obtain the coordinate information of the point source interference source.
The embodiments of the apparatus parts described above have been explained in detail and explicitly in the corresponding method embodiments, and therefore they will not be described again and can be understood by referring to each other.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.
It should be noted that the terms "first," "second," and the like in the description of the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, in the description of the present invention, the meaning of "a plurality" means at least two unless otherwise specified.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. A method for positioning a point source interference source in seismic geoelectric field observation is characterized by comprising the following steps:
respectively obtaining a first real-time electric field intensity expression, a second real-time electric field intensity expression and a third real-time electric field intensity expression of at least three electrode pairs, wherein the three electrode pairs are determined by combining a reference electrode and at least two measuring electrodes in pairs, and the reference electrode and the at least two measuring electrodes form a polygonal shape;
respectively determining a first interference electric field intensity expression, a second interference electric field intensity expression and a third interference electric field intensity expression of the three electrode pairs according to the first real-time electric field intensity expression, the second real-time electric field intensity expression and the third real-time electric field intensity expression;
and positioning the position of the point source interference source according to the first interference electric field strength expression, the second interference electric field strength expression and the third interference electric field strength expression.
2. The method according to claim 1, wherein before the obtaining the first, second and third real-time electric field intensity expressions of the at least three electrode pairs, respectively, further comprises:
measuring a first natural potential difference, a second natural potential difference and a third natural potential difference between the electrodes in each of the electrode pairs;
acquiring a first distance, a second distance and a third distance between electrodes in each electrode pair;
determining a first self-heating electric field intensity expression in the three electrode pairs according to the first self-potential difference and the first distance;
determining a second self-heating electric field intensity expression in the three electrode pairs according to the second self-potential difference and the second distance;
and determining a third self-heating electric field intensity expression in the three electrode pairs according to the third self-potential difference and the third distance.
3. The method according to claim 2, wherein said determining a first, a second and a third disturbing electric field strength expressions for three said electrode pairs respectively according to said first, said second and said third real-time electric field strength expressions comprises:
calculating the difference between the first real-time electric field intensity expression and the first natural electric field intensity expression to obtain a first interference electric field intensity expression;
calculating the difference between the second real-time electric field intensity expression and the second natural electric field intensity expression to obtain a second interference electric field intensity expression;
and calculating the difference between the third real-time electric field intensity expression and the third natural electric field intensity expression to obtain a third interference electric field intensity expression.
4. The method according to claim 1, wherein the locating the position of the point source interference source according to the first, second and third representations of the interfering electric field strength comprises:
determining coordinate information of each measuring electrode based on a rectangular coordinate system;
and respectively inputting the coordinate information of each measuring electrode to the first interference electric field intensity expression, the second interference electric field intensity expression and the third interference electric field intensity expression to obtain the coordinate information of the point source interference source.
5. The positioning method according to claim 4, wherein before determining the coordinate information of each of the measuring electrodes based on the rectangular coordinate system, the method further comprises:
and establishing a rectangular coordinate system by taking the reference electrode as a coordinate origin.
6. A positioning device for a point source interference source in seismic ground field observation is characterized by comprising:
the acquisition module is used for respectively acquiring a first real-time electric field intensity expression, a second real-time electric field intensity expression and a third real-time electric field intensity expression of at least three electrode pairs, wherein the three electrode pairs are determined by combining a reference electrode and at least two measuring electrodes in pairs, and the reference electrode and the at least two measuring electrodes form a polygonal shape;
a determining module, configured to determine a first interference electric field intensity expression, a second interference electric field intensity expression, and a third interference electric field intensity expression of the three electrode pairs according to the first real-time electric field intensity expression, the second real-time electric field intensity expression, and the third real-time electric field intensity expression, respectively;
and the positioning module is used for positioning the position of the point source interference source according to the first interference electric field strength expression, the second interference electric field strength expression and the third interference electric field strength expression.
7. The positioning apparatus according to claim 6, further comprising a natural electric field strength determination module for:
measuring a first natural potential difference, a second natural potential difference and a third natural potential difference between the electrodes in each of the electrode pairs;
acquiring a first distance, a second distance and a third distance between electrodes in each electrode pair;
determining a first self-heating electric field intensity expression in the three electrode pairs according to the first self-potential difference and the first distance;
determining a second self-heating electric field intensity expression in the three electrode pairs according to the second self-potential difference and the second distance;
and determining a third self-heating electric field intensity expression in the three electrode pairs according to the third self-potential difference and the third distance.
8. The positioning apparatus according to claim 7, wherein the determining module is specifically configured to:
calculating the difference between the first real-time electric field intensity expression and the first natural electric field intensity expression to obtain a first interference electric field intensity expression;
calculating the difference between the second real-time electric field intensity expression and the second natural electric field intensity expression to obtain a second interference electric field intensity expression;
and calculating the difference between the third real-time electric field intensity expression and the third natural electric field intensity expression to obtain a third interference electric field intensity expression.
9. The positioning device according to claim 6, wherein the positioning module is specifically configured to:
determining coordinate information of each measuring electrode based on a rectangular coordinate system;
and respectively inputting the coordinate information of each measuring electrode to the first interference electric field intensity expression, the second interference electric field intensity expression and the third interference electric field intensity expression to obtain the coordinate information of the point source interference source.
10. The positioning device of claim 9, further comprising a coordinate system establishing module configured to:
and establishing a rectangular coordinate system by taking the reference electrode as a coordinate origin.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114817862A (en) * | 2022-05-26 | 2022-07-29 | 江苏省地震局 | Method and device for positioning electromagnetic interference source |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205647532U (en) * | 2015-12-07 | 2016-10-12 | 中国石油天然气股份有限公司 | Interference source detection device |
| CN107942194A (en) * | 2017-11-16 | 2018-04-20 | 广东电网有限责任公司佛山供电局 | A kind of regions and areas's direct current fluctuation sources localization method based on sensitivity analysis |
| US20180120472A1 (en) * | 2016-10-28 | 2018-05-03 | Korea Institute Of Geoscience And Mineral Resources | Apparatus and method for localizing underwater anomalous body |
| CN109683203A (en) * | 2019-02-15 | 2019-04-26 | 中国地震局地壳应力研究所 | A kind of earthquake ground dipole interference source localization method and system in electricity observation |
| US10501181B1 (en) * | 2018-08-20 | 2019-12-10 | Electric Power Research Institute, Inc. | Method and apparatus for aerial scanning and detection of contact voltages and distinguishing between normal and abnormal sources of electric fields |
-
2020
- 2020-05-19 CN CN202010425234.6A patent/CN111580152A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205647532U (en) * | 2015-12-07 | 2016-10-12 | 中国石油天然气股份有限公司 | Interference source detection device |
| US20180120472A1 (en) * | 2016-10-28 | 2018-05-03 | Korea Institute Of Geoscience And Mineral Resources | Apparatus and method for localizing underwater anomalous body |
| CN107942194A (en) * | 2017-11-16 | 2018-04-20 | 广东电网有限责任公司佛山供电局 | A kind of regions and areas's direct current fluctuation sources localization method based on sensitivity analysis |
| US10501181B1 (en) * | 2018-08-20 | 2019-12-10 | Electric Power Research Institute, Inc. | Method and apparatus for aerial scanning and detection of contact voltages and distinguishing between normal and abnormal sources of electric fields |
| CN109683203A (en) * | 2019-02-15 | 2019-04-26 | 中国地震局地壳应力研究所 | A kind of earthquake ground dipole interference source localization method and system in electricity observation |
Non-Patent Citations (2)
| Title |
|---|
| 张宇 等: ""地电观测中电磁干扰源定位方法研究"", 《地震学报》 * |
| 张宇 等: ""地电观测中电磁干扰源定位方法研究"", 《地震学报》, vol. 39, no. 3, 31 May 2017 (2017-05-31), pages 368 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114817862A (en) * | 2022-05-26 | 2022-07-29 | 江苏省地震局 | Method and device for positioning electromagnetic interference source |
| CN114817862B (en) * | 2022-05-26 | 2023-09-26 | 江苏省地震局 | Method and device for positioning electromagnetic interference source |
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