Azimuth angle calibration method and azimuth angle calibration device for lightning detection assembly

Abstract

The invention provides an azimuth angle calibration method and calibration device for a thunder and lightning detection assembly, and the method comprises the following steps: enabling the thunder and lightning detection assembly to rotate to a current detection position, enabling an electric field antenna and magnetic field antenna assembly to collect a magnetic field signal which is released outwards by thunder and lightning signal simulation equipment, and obtaining the current detection position where the thunder and lightning detection assembly is located; calling a preset calibration azimuth angle when the thunder and lightning detection assembly is located at the current detection position; obtaining a current azimuth angle of the magnetic field antenna assembly at the current detection position; and comparing the current azimuth angle with the calibrated azimuth angle, and if the current azimuth angle is judged to be inconsistent with the calibrated azimuth angle, adjusting the current azimuth angle to be consistent with the calibrated azimuth angle. According to the invention, the azimuth angle of the lightning detection assembly can be accurately calibrated, so that the precision and reliability of the lightning detection assembly are ensured.

Description

Technical Field

[0001] The invention relates to a calibration method, in particular to an azimuth calibration method and a calibration device for a lightning detection component. Background Art

[0002] The formation and occurrence of lightning are accompanied by a variety of physical effects, including changes in the atmospheric electric field caused by the formation and occurrence of lightning, flashes, strong electromagnetic radiation, and large currents generated during lightning discharge. These physical effects caused by lightning can cause serious harm to people's production and life in the fields of electricity, communications, transportation, petrochemicals, etc.

[0003] Ground-based atmospheric electric field detection equipment is one of the important equipment for lightning warning. In ground-based atmospheric electric field detection equipment, lightning detection components are one of the important components for lightning signal detection, and the azimuth measurement accuracy of lightning detection components plays a vital role in its performance. However, due to the processing errors of lightning detection components themselves, environmental factors and the limitations of measurement equipment, there are often certain errors in azimuth measurement.

[0004] Therefore, how to provide a method for calibrating the azimuth angle to ensure the accuracy and reliability of the lightning detection component is a technical problem that needs to be solved urgently. Summary of the invention

[0005] In view of the shortcomings existing in the above problems, the present invention provides an azimuth angle calibration method and a calibration device of a lightning detection assembly, which can accurately calibrate the azimuth angle of the lightning detection assembly to ensure the accuracy and reliability of the lightning detection assembly.

[0006] To achieve the above object, in a first aspect, the present invention provides an azimuth calibration method for a lightning detection assembly, comprising the following steps:

[0007] After the lightning detection component is rotated to the current detection position, the electric field antenna and the magnetic field antenna component collect the magnetic field signal released outward by the lightning signal simulation device, and obtain the current detection position of the lightning detection component;

[0008] Calling the preset calibration azimuth when the lightning detection component is in the current detection position;

[0009] Obtaining the current azimuth angle when the magnetic field antenna assembly is at the current detection position;

[0010] The current azimuth is compared with the calibrated azimuth. If it is determined that the current azimuth is inconsistent with the calibrated azimuth, the current azimuth is adjusted to be consistent with the calibrated azimuth.

[0011] In one of the embodiments, the calling of the preset calibration azimuth when the lightning detection component is in the current detection position includes:

[0012] According to the current detection position of the lightning detection component, the preset calibration azimuth corresponding to the current detection position stored in the fourth processor is called.

[0013] In one of the embodiments, the calling of the preset calibration azimuth when the lightning detection component is in the current detection position includes:

[0014] The electric field antenna component inputs the received magnetic field signal into the third processor to obtain a corresponding third magnetic field signal value;

[0015] According to the current detection position of the lightning detection component, calling the preset calibration magnetic field signal value corresponding to the current detection position stored in the fourth processor;

[0016] The third magnetic field signal value is compared with the calibration magnetic field signal value. If the third magnetic field signal value is greater than the calibration magnetic field signal value, the calibration azimuth corresponding to the current detection position pre-stored in the fourth processor is called.

[0017] In one embodiment, obtaining the current azimuth angle when the magnetic field antenna assembly is in the current detection position includes:

[0018] The magnetic field antenna component inputs the received magnetic field signal into the first processor and the second processor respectively to obtain a first magnetic field signal value and a second magnetic field signal value;

[0019] The current azimuth angle of the magnetic field antenna component when it is at the current detection position is obtained according to the first magnetic field signal value and the second magnetic field signal value.

[0020] In a second aspect, the present invention further provides a calibration device for implementing the above-mentioned azimuth calibration method of the lightning detection assembly, comprising:

[0021] Lightning signal simulation equipment generates and releases a set magnetic field signal according to input instructions;

[0022] A rotating component is fixed inside the lightning signal simulation device and rotates the lightning detection component to a current detection position;

[0023] A lightning detection component is fixed on the rotating component, and includes an electric field antenna and a magnetic field antenna component. The electric field antenna is fixed on the top end surface of the magnetic field antenna component, wherein the electric field antenna and the magnetic field antenna component are both used to collect the magnetic field signal released outward by the lightning signal simulation device;

[0024] A processor, configured to obtain at least a first magnetic field signal value, a second magnetic field signal value, a preset calibration azimuth corresponding to a current detection position, and a preset calibration magnetic field signal value;

[0025] Obtaining a current azimuth according to the first magnetic field signal value and the second magnetic field signal value;

[0026] The current azimuth is compared with the calibrated azimuth, and if it is determined that the current azimuth is inconsistent with the calibrated azimuth, the current azimuth is adjusted to be consistent with the calibrated azimuth.

[0027] In one embodiment, the magnetic field antenna assembly includes a top plate, a bottom plate, a first vertical orthogonal induction antenna, a second vertical orthogonal induction antenna and a circuit board, the top plate and the bottom plate are respectively fixed on the top and bottom of the first vertical orthogonal induction antenna and the second vertical orthogonal induction antenna, and the circuit board is arranged on the bottom plate, wherein the first vertical orthogonal induction antenna collects the first magnetic field signal released outward by the lightning signal simulation device, and the second vertical orthogonal induction antenna collects the second magnetic field signal released outward by the lightning signal simulation device.

[0028] In one embodiment, the first vertical orthogonal sensing antenna includes a first column a, a first column b and a first sensing antenna, wherein the first column a and the first column b are opposite to each other and spaced apart, the first sensing antenna is distributed on the first column a and the first column b, and both ends of the first sensing antenna are connected to the circuit board;

[0029] The second vertical orthogonal sensing antenna includes a second column a, a second column b and a second sensing antenna, wherein the second column a and the second column b are opposite to each other and arranged at an interval, the second sensing antenna is distributed on the second column a and the second column b, and both ends of the second sensing antenna are connected to the circuit board.

[0030] In one embodiment, the circuit board is solidified with a first interface a, a first interface b, a second interface a, a second interface b, a first connecting column a, a first connecting column b, a second connecting column a and a second connecting column b, wherein the first interface a and the first interface b are respectively connected to the first connecting column a and the first connecting column b, the second interface a and the second interface b are respectively connected to the second connecting column a and the second connecting column b, the first sensing antenna is connected to the processor via the first interface a and the first connecting column a, and the first interface b and the first connecting column b, and the second sensing antenna is connected to the processor via the second interface a and the second connecting column a, and the second interface b and the second connecting column b.

[0031] In one embodiment, the processor includes a first processor, a second processor and a fourth processor, wherein the first processor receives the first magnetic field signal and obtains a first magnetic field signal value according to the first magnetic field signal;

[0032] The second processor receives the second magnetic field signal, and obtains a second magnetic field signal value according to the second magnetic field signal;

[0033] The fourth processor stores a plurality of the calibrated azimuths and a plurality of the calibrated magnetic field signal values, and calls the corresponding calibrated azimuth or the calibrated magnetic field signal value according to the received current detection position, and obtains the current azimuth according to the first magnetic field signal value and the second magnetic field signal value, and compares the current azimuth with the calibrated azimuth. If it is determined that the current azimuth is inconsistent with the calibrated azimuth, the current azimuth is adjusted to be consistent with the calibrated azimuth.

[0034] In one embodiment, the processor further includes a third processor, which receives a third magnetic field signal collected by the electric field antenna, and obtains a third magnetic field signal value according to the third magnetic field signal;

[0035] The fourth processor compares the third magnetic field signal value with the calibrated magnetic field signal value. If it is determined that the third magnetic field signal value is greater than the calibrated magnetic field signal value, the current azimuth is compared with the calibrated azimuth. If it is determined that the current azimuth is inconsistent with the calibrated azimuth, the current azimuth is adjusted to be consistent with the calibrated azimuth.

[0036] In one embodiment, the rotating assembly includes a rotating mechanism, a dial, a tray and a pointer, wherein the dial is fixed on the rotating mechanism, the tray is rotatably connected to the rotating mechanism and is arranged on the dial, the pointer is fixed on the tray with its bottom end adjacent to the dial, and the lightning detection assembly is fixed on the tray.

[0037] Compared with the prior art, the present invention has one of the following advantages:

[0038] The present invention can accurately calibrate the azimuth of the lightning detection component to ensure that the current azimuth is the same as the calibrated azimuth, thereby ensuring the accuracy and reliability of the lightning detection component. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 is a flow chart of the calibration method of the present invention;

[0040] Figure 2 is a flow chart of a first embodiment of the calibration method of the present invention;

[0041] Figure 3 is a flow chart of a second embodiment of the calibration method of the present invention;

[0042] Figure 4 A three-dimensional diagram of an embodiment of a calibration device in the present invention;

[0043] Figure 5 for Figure 4 A three-dimensional image of the lightning detection assembly.

[0044] The main reference numerals are as follows:

[0045] 1-lightning signal simulation device; 2-electric field antenna; 3-magnetic field antenna; 301-end; 302-bottom plate;

[0046] 303 - first column a; 304 - first column b; 305 - first sensing antenna; 306 - first upper support a;

[0047] 307-first lower support a; 308-first upper support b; 309-first lower support b; 310-second column a; 311-second column b; 312-second sensing antenna; 313-second upper support a; 314-second lower support a; 315-second lower support b; 316-circuit board; 4-rotating assembly; 401-bottom fixing member; 402-shaft assembly; 403-dial; 404-tray; 405-pointer. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] like Figure 1 As shown, the present invention provides an azimuth calibration method for a lightning detection assembly, comprising the following steps:

[0050] S1. After the lightning detection component is rotated to the current detection position, the electric field antenna and the magnetic field antenna component collect the magnetic field signal released outward by the lightning signal simulation device, and obtain the current detection position of the lightning detection component;

[0051] S2, calling the preset calibration azimuth when the lightning detection component is in the current detection position;

[0052] S3, obtaining the current azimuth angle when the magnetic field antenna assembly is at the current detection position;

[0053] S4. Compare the current azimuth with the calibrated azimuth. If it is determined that the current azimuth is inconsistent with the calibrated azimuth, adjust the current azimuth to be consistent with the calibrated azimuth.

[0054] The above calibration method can be used to accurately calibrate the azimuth of the lightning detection component to ensure that the current azimuth is the same as the calibrated azimuth, thereby ensuring the accuracy and reliability of the lightning detection component.

[0055] Embodiment 1

[0056] like Figure 2 As shown, this embodiment provides an azimuth calibration method for a lightning detection component, comprising the following steps:

[0057] S100: After the lightning detection component is rotated to the current detection position, the electric field antenna and the magnetic field antenna component collect the magnetic field signal released outward by the lightning signal simulation device, and obtain the current detection position of the lightning detection component.

[0058] Specifically, after the lightning detection component is placed on the rotatable tray, the lightning detection component is located above the dial, and the lightning detection component is horizontally rotated to the specified current detection position through the pointer on the tray. At this time, the current detection position can be manually input or automatically input into the external control part through the acquisition device.

[0059] The lightning signal simulation device generates and releases a set magnetic field signal according to the input instruction of the control part. Since the rotating component is fixed inside the lightning signal simulation device, when the lightning signal simulation device releases the set magnetic field signal, the electric field antenna and the magnetic field antenna component collect the magnetic field signal released by the lightning signal simulation device.

[0060] S101, calling a preset calibration azimuth when the lightning detection component is in a current detection position.

[0061] Specifically, after receiving the input of the current detection position, the control part calls the preset calibration azimuth angle θ` corresponding to the current detection position stored in the fourth processor according to the current detection position of the lightning detection component.

[0062] S102, obtaining a first magnetic field signal value and a second magnetic field signal value.

[0063] Specifically, the magnetic field antenna assembly includes a first vertical orthogonal induction antenna, a second vertical orthogonal induction antenna and a circuit board. The first vertical orthogonal induction antenna is connected to the first processor in the control part through the circuit board and the first transmission line in sequence, and the second vertical orthogonal induction antenna is connected to the second processor in the control part through the circuit board and the second transmission line in sequence.

[0064] After the first processor and the second processor receive the first magnetic field signal and the second magnetic field signal respectively, the fourth processor uses the existing magnetic field signal value calculation algorithm to obtain the first magnetic field signal value E respectively. X and the second magnetic field signal value E Y . Among them, this patent application does not limit the existing magnetic field signal value calculation algorithm.

[0065] S103: Obtain the current azimuth angle when the magnetic field antenna assembly is in the current detection position.

[0066] Specifically, the control part includes a fourth processor, which obtains the first magnetic field signal value E X and the second magnetic field signal value E Y Then, the current azimuth angle θ is obtained using the following formula:

[0067]

[0068] S104: Compare the current azimuth with the calibrated azimuth. If it is determined that the current azimuth is inconsistent with the calibrated azimuth, adjust the current azimuth to be consistent with the calibrated azimuth.

[0069] Specifically, if it is determined that the current azimuth angle θ is inconsistent with the calibrated azimuth angle θ`, the current azimuth angle is adjusted to be consistent with the calibrated azimuth angle, including but not limited to the following two situations.

[0070] Case 1:

[0071] S1041, determining whether the current detection position of the lightning detection component obtained by the control part and the calibration azimuth angle θ' corresponding to the current detection position are accurate, if so, executing step S1042, if not, adjusting to be accurate;

[0072] S1042, adjusting relevant detection parameters according to the difference between the current azimuth angle θ and the calibration azimuth angle θ' (for example, including but not limited to increasing the sensitivity and accuracy of collecting magnetic field signals of the first sensing antenna and / or the second sensing antenna, etc.);

[0073] S1043, the magnetic field antenna component receives the magnetic field signal again, and after obtaining the current first magnetic field signal value and the current second magnetic field signal value, compares the current first magnetic field signal value with the previous first magnetic field signal value, and the current second magnetic field signal value with the previous second magnetic field signal value; if it is determined that the current first magnetic field signal value and the previous first magnetic field signal value, and the current second magnetic field signal value and the previous second magnetic field signal value are the same, repeat the above steps until it is determined that at least one of the current first magnetic field signal value and the previous first magnetic field signal value, and the current second magnetic field signal value and the previous second magnetic field signal value is different;

[0074] If it is determined that there is a difference between the current first magnetic field signal value and the previous first magnetic field signal value, and between the current second magnetic field signal value and the previous second magnetic field signal value, the current azimuth angle θ is obtained according to the current first magnetic field signal value and the current second magnetic field signal value, and the current azimuth angle θ is compared with the calibrated azimuth angle θ`. If it is determined that the two are different, the above steps are repeated until the current azimuth angle θ is adjusted to be consistent with the calibrated azimuth angle θ`.

[0075] Case 2:

[0076] S1041`, replacing the corresponding first sensing antenna and / or second sensing antenna according to the difference between the current azimuth angle θ and the calibrated azimuth angle θ`;

[0077] S1042`, adjusting the current detection position of the replaced lightning detection component to the previous detection position, and after ensuring that the current detection position is the same as the previous detection position, obtaining the current detection position and the calibration azimuth angle θ` corresponding thereto;

[0078] S1043`, judging whether the current detection position of the lightning detection component obtained by the control part and the calibration azimuth angle θ` corresponding to the current detection position are accurate, if so, executing step S1042`, if not, adjusting to be accurate;

[0079] S1044`, the magnetic field antenna component receives the magnetic field signal again, and after obtaining the current first magnetic field signal value and the current second magnetic field signal value, compares the current first magnetic field signal value with the previous first magnetic field signal value, and the current second magnetic field signal value with the previous second magnetic field signal value; if it is determined that the current first magnetic field signal value and the previous first magnetic field signal value, and the current second magnetic field signal value and the previous second magnetic field signal value are the same, repeat the above steps until it is determined that at least one of the current first magnetic field signal value and the previous first magnetic field signal value, and the current second magnetic field signal value and the previous second magnetic field signal value is different;

[0080] If it is determined that there is a difference between the current first magnetic field signal value and the previous first magnetic field signal value, and between the current second magnetic field signal value and the previous second magnetic field signal value, the current azimuth angle θ is obtained according to the current first magnetic field signal value and the current second magnetic field signal value, and the current azimuth angle θ is compared with the calibrated azimuth angle θ`. If it is determined that the two are different, the above steps are repeated until the current azimuth angle θ is adjusted to be consistent with the calibrated azimuth angle θ`.

[0081] Embodiment 2

[0082] like Figure 3 As shown, this embodiment provides an azimuth calibration method for a lightning detection component, comprising the following steps:

[0083] S200: After the lightning detection component is rotated to the current detection position, the electric field antenna and the magnetic field antenna component collect the magnetic field signal released outward by the lightning signal simulation device, and obtain the current detection position of the lightning detection component.

[0084] Specifically, after the lightning detection component is placed on the rotatable tray, the lightning detection component is located above the dial, and the lightning detection component is horizontally rotated to the specified current detection position through the pointer on the tray. At this time, the current detection position can be manually input or automatically input into the external control part through the acquisition device.

[0085] The lightning signal simulation device generates and releases a set magnetic field signal according to the input instruction of the control part. Since the rotating component is fixed inside the lightning signal simulation device, when the lightning signal simulation device releases the set magnetic field signal, the electric field antenna and the magnetic field antenna component collect the magnetic field signal released by the lightning signal simulation device.

[0086] S201. Obtain a third magnetic field signal value.

[0087] Specifically, the electric field antenna assembly is connected to the third processor in the control part through the third transmission line. After receiving the third magnetic field signal, the third processor can use the existing magnetic field signal value calculation algorithm to obtain the third magnetic field signal value E Z . Among them, this patent application does not limit the existing magnetic field signal value calculation algorithm.

[0088] S202, calling a preset calibration magnetic field signal value.

[0089] Specifically, after receiving the input current detection position, the control part calls the preset calibration magnetic field signal value E corresponding to the current detection position stored in the fourth processor according to the current detection position of the lightning detection component. Z` .

[0090] S203: call the calibration azimuth corresponding to the current detection position pre-stored in the fourth processor.

[0091] Specifically, for the third magnetic field signal value E Z and the calibration magnetic field signal value E Z` Compare, if it is determined that the third magnetic field signal value E Z Greater than the calibration magnetic field signal value E Z` , then call the calibration azimuth θ` corresponding to the current detection position pre-stored in the fourth processor; if it is determined that the third magnetic field signal value E Z Not greater than the calibration magnetic field signal value E Z` , then return to step S200.

[0092] S204, obtaining a first magnetic field signal value and a second magnetic field signal value.

[0093] Specifically, the magnetic field antenna assembly includes a first vertical orthogonal induction antenna, a second vertical orthogonal induction antenna and a circuit board. The first vertical orthogonal induction antenna is connected to the first processor in the control part through the circuit board and the first transmission line in sequence, and the second vertical orthogonal induction antenna is connected to the second processor in the control part through the circuit board and the second transmission line in sequence.

[0094] After the first processor and the second processor obtain the first magnetic field signal and the second magnetic field signal respectively, the fourth processor uses the existing magnetic field signal value calculation algorithm to obtain the first magnetic field signal value E respectively. X and the second magnetic field signal value E Y . Among them, this patent application does not limit the existing magnetic field signal value calculation algorithm.

[0095] S205: Obtain the current azimuth angle when the magnetic field antenna assembly is in the current detection position.

[0096] Specifically, the fourth processor obtains the first magnetic field signal value E X and the second magnetic field signal value E Y Then, the current azimuth angle θ is obtained using the following formula:

[0097]

[0098] S206: Compare the current azimuth with the calibrated azimuth. If it is determined that the current azimuth is inconsistent with the calibrated azimuth, adjust the current azimuth θ to be consistent with the calibrated azimuth θ`.

[0099] Specifically, if it is determined that the current azimuth angle is inconsistent with the calibrated azimuth angle, the current azimuth angle θ is adjusted to be consistent with the calibrated azimuth angle θ`, including but not limited to the following two situations.

[0100] Among them, the implementation steps of situation one are the same as the implementation steps S1041 to S1043 recorded in embodiment one, and the implementation steps of situation two are the same as the implementation steps S1041` to S1044` recorded in embodiment one.

[0101] The present invention provides a calibration device for implementing Figure 1 The calibration method described in , including:

[0102] Lightning signal simulation equipment generates and releases a set magnetic field signal according to input instructions;

[0103] The rotating component is fixed inside the lightning signal simulation device and rotates the lightning detection component to a current detection position;

[0104] A lightning detection component is fixed on the rotating component, and includes an electric field antenna and a magnetic field antenna component. The electric field antenna is fixed on the top end surface of the magnetic field antenna component. The electric field antenna and the magnetic field antenna component collect the magnetic field signal released outward by the lightning signal simulation device.

[0105] A processor, configured to obtain at least a first magnetic field signal value, a second magnetic field signal value, a preset calibration azimuth corresponding to a current detection position, and a preset calibration magnetic field signal value;

[0106] Obtaining a current azimuth angle according to the first magnetic field signal value and the second magnetic field signal value;

[0107] The current azimuth is compared with the calibrated azimuth. If it is determined that the current azimuth is inconsistent with the calibrated azimuth, the current azimuth is adjusted to be consistent with the calibrated azimuth.

[0108] The azimuth of the lightning detection component can be accurately calibrated by the calibration device to ensure that the current azimuth is the same as the calibrated azimuth, thereby ensuring the accuracy and reliability of the lightning detection component.

[0109] Embodiment 3

[0110] like Figure 4 and Figure 5 As shown, this embodiment provides a calibration device for implementing Figure 2 The calibration method described in the specification includes a lightning signal simulation device 1, a rotating component 4, a lightning detection component and a processor.

[0111] In this embodiment, the lightning signal simulation device 1 may adopt, but is not limited to, a Helmholtz coil.

[0112] Preferably, when the lightning signal simulation device 1 uses a Helmholtz coil, it generates and releases a set magnetic field signal to the outside according to an input instruction of the control part.

[0113] In this embodiment, the electric field antenna 2 may be, but is not limited to, an electric field fast-varying antenna, an electric field slow-varying antenna, or an electric field induction antenna.

[0114] Preferably, the electric field antenna 2 is an electric field fast-changing antenna, which generates a third magnetic field signal after collecting the magnetic field signal released outward by the Helmholtz coil.

[0115] In this embodiment, the magnetic field antenna 3 component includes a top plate, a bottom plate 302, a first vertical orthogonal induction antenna, a second vertical orthogonal induction antenna and a circuit board 316. The top plate and the bottom plate 302 are respectively fixed on the top and bottom of the first vertical orthogonal induction antenna and the second vertical orthogonal induction antenna. The circuit board 316 is fixed on the bottom plate 302. The first vertical orthogonal induction antenna collects the first magnetic field signal released outward by the lightning signal simulation device 1, and the second vertical orthogonal induction antenna collects the second magnetic field signal released outward by the lightning signal simulation device 1.

[0116] Specifically, the top plate is in the shape of a cross structure, and a plurality of supporting protrusions are provided on the top end surface of each end 301 in the cross structure. The electric field antenna 2 is arranged on the top of the top plate through the plurality of supporting protrusions and faces the lightning signal simulation device 1 .

[0117] Specifically, the shape of the bottom plate 302 is roughly similar to a cross-shaped structure. The circuit board 316 is fixed on the bottom plate 302 through support columns and fasteners and is located at the center of the bottom plate 302.

[0118] Furthermore, the bottom plate 302 includes a square platform and extensions connected to the side walls of the platform, wherein the extensions are located directly below the end portions 301 .

[0119] Specifically, the first vertical orthogonal induction antenna includes a first column a303, a first column b304 and a first induction antenna 305, wherein the first column a303 and the first column b304 have the same structure and are correspondingly connected to the top plate and the bottom plate 302 respectively through fasteners, the first induction antenna 305 is distributed on the first column a303 and the first column b304, and both ends of the first induction antenna 305 are connected to the circuit board 316.

[0120] Further, the first column a303 includes a first middle part a, a first upper end a, a first lower end a, a first upper support member a306 and a first lower support member a307, and the first upper end a and the first lower end a are fixed at the two ends of the first middle part a accordingly. Among them, the first upper end a includes a first upper through hole a and a first upper connecting end a, and the first upper end a is connected to the adjacent end 301 through the first connecting end a. The first lower end a includes a first lower through hole a and a first lower connecting end a, and the first lower end a is connected to the adjacent extension end through the first lower connecting end a. A slot for clamping the first sensing antenna 305 is formed on the first upper support member a306. A portion of the first upper support member a306 is fixed on the first upper end a, and the other portion is placed on the first upper through hole a. A slot for clamping the first sensing antenna 305 is formed on the first lower support member a307. A portion of the first lower support member a307 is fixed on the first lower end a, and the other portion is placed on the first lower through hole a.

[0121] Further, the first column b304 includes a first middle portion b, a first upper end b, a first lower end b, a first upper support member b308 and a first lower support member b309, and the first upper end b and the first lower end b are fixed to the two ends of the first middle portion b accordingly. Among them, the first upper end b includes a first upper through hole b and a first upper connecting end b, and the first upper end b is connected to the adjacent end 301 through the first connecting end b. The first lower end b includes a first lower through hole b and a first lower connecting end b, and the first lower end b is connected to the adjacent extension end through the first lower connecting end b. A slot for clamping the first sensing antenna 305 is formed on the first upper support member b308. A portion of the first upper support member b308 is fixed on the first upper end b, and the other portion is placed on the first upper through hole b. A slot for clamping the first sensing antenna 305 is formed on the first lower support member b309. A portion of the first lower support member b309 is fixed on the first lower end b, and the other portion is placed on the first lower through hole b.

[0122] Specifically, the second vertical orthogonal induction antenna includes a second column a310, a second column b311 and a second induction antenna 312, wherein the second column a310 and the second column b311 have the same structure and are correspondingly connected to the top plate and the bottom plate 302 respectively through fasteners, the second induction antenna 312 is distributed on the second column a310 and the second column b311, and both ends of the second induction antenna 312 are connected to the circuit board 316.

[0123] Further, the second column a310 includes a second middle portion a, a second upper end portion a, a second lower end portion a, a second upper support member a313 and a second lower support member a314, and the second upper end portion a and the second lower end portion a are fixed to the two ends of the second middle portion a accordingly. Among them, the second upper end portion a includes a second upper through hole a and a second upper connecting end a, and the second upper end portion a is connected to the adjacent end portion 301 through the second connecting end a. The second lower end portion a includes a second lower through hole a and a second lower connecting end a, and the second lower end portion a is connected to the adjacent extension end through the second lower connecting end a. A slot for clamping the second sensing antenna 312 is formed on the second upper support member a313. A portion of the second upper support member a313 is fixed on the second upper end portion a, and the other portion is placed on the second upper through hole a. A slot for clamping the second sensing antenna 312 is formed on the second lower support member a314. A portion of the second lower support member a314 is fixed on the second lower end portion a, and the other portion is placed on the second lower through hole a.

[0124] Further, the second column b311 includes a second middle portion b, a second upper end b, a second lower end b, a second upper support member b and a second lower support member b315, and the second upper end b and the second lower end b are fixed to the two ends of the second middle portion b accordingly. Among them, the second upper end b includes a second upper through hole b and a second upper connecting end b, and the second upper end b is connected to the adjacent end 301 through the second connecting end b. The second lower end b includes a second lower through hole b and a second lower connecting end b, and the second lower end b is connected to the adjacent extension end through the second lower connecting end b. A slot for clamping the second sensing antenna 312 is formed on the second upper support member b. A portion of the second upper support member b is fixed on the second upper end b, and the other portion is placed on the second upper through hole b. A slot for clamping the second sensing antenna 312 is formed on the second lower support member b315. A portion of the second lower support member b315 is fixed on the second lower end b, and the other portion is placed on the second lower through hole b.

[0125] In this embodiment, the circuit board 316 is solidified with a first interface a, a first interface b, a second interface a, a second interface b, a first connecting column a, a first connecting column b, a second connecting column a and a second connecting column b, wherein the first interface a and the first interface b are connected to the first connecting column a and the first connecting column b respectively, and the second interface a and the second interface b are connected to the second connecting column a and the second connecting column b respectively.

[0126] The circuit board is fixed on the top end surface of the bottom plate, which can reduce the volume of the orthogonal magnetic loop antenna.

[0127] In one embodiment, the first ends of the first connecting pillar a, the first connecting pillar b, the second connecting pillar a and the second connecting pillar b are solidified on the circuit board 316, and the second ends of the connecting pillars are wiring terminals and face toward the top plate.

[0128] In another embodiment, a plurality of threading holes are opened on the base plate 302, and the first ends of the first connecting column a, the first connecting column b, the second connecting column a and the second connecting column b are solidified on the circuit board 316, and the second end of each connecting column is a wiring terminal, and the second end of each connecting column corresponds to an adjacent threading hole.

[0129] In this embodiment, the first sensing antenna 305 is connected to the first processor through the first interface a and the first connecting column a, the first interface b and the first connecting column b, and the first transmission line, and the second sensing antenna 312 is connected to the second processor through the second interface a and the second connecting column a, the second interface b and the second connecting column b, and the second transmission line.

[0130] Specifically, the first end of the first sensing antenna 305 passes through the first lower through hole a and is placed in the first interface a. The second end of the first sensing antenna 305 extends along the first lower support member a307, the outer wall of the first column a303, the first upper support member a306, the first upper through hole a, the distance between the first column a303 and the first column b304, the first upper support member b308, the first upper through hole b, the outer wall of the first column b304, the first lower support member b309, and the first lower through hole b to the position of the first interface b and is placed in the first interface b. The first end of the second sensing antenna 312 passes through the second lower through hole a and is placed in the second interface a. The second end of the second sensing antenna 312 extends along the second lower support member a314, the outer wall of the second column a310, the second upper support member a313, the second upper through hole a, the distance between the second column a310 and the second column b311, the second upper support member b, the second upper through hole b, the outer wall of the second column b311, the second lower support member b315, and the second lower through hole b to the position of the second interface b and is placed in the second interface b.

[0131] Preferably, the first sensing antenna 305 and the second sensing antenna 312 are both in a strip structure, and the first sensing antenna 305 and the second sensing antenna 312 adopt the above method, so that the first sensing antenna 305 and the second sensing antenna 312 form a ring structure. Compared with the prior art in which the conductive coil is only wound around the first column a303, the first column b304, the second column a310 and the second column b311, the installation method of the first sensing antenna 305 and the second sensing antenna 312 can be simplified, and the range of the set collection area can be expanded. In the later stage, the sensitivity of the first sensing antenna 305 and the second sensing antenna 312 can be adjusted through the control part and the relevant program, thereby increasing the sensitivity when collecting magnetic field signals.

[0132] In addition, in this embodiment, the first vertical orthogonal induction antenna is an east-west antenna, which mainly senses magnetic field signals in the east-west direction, and the second vertical orthogonal induction antenna is a north-south antenna, which mainly senses magnetic field signals in the north-south direction.

[0133] In addition, in this embodiment, in order to prevent the first sensing antenna 305, the second sensing antenna 312 and the circuit board 316 from being damaged, protective plates are installed at least on the top of the bottom plate 302, the outer wall surface of the first column a303, the outer wall surface of the first column b304, the outer wall surface of the first column a303 and the outer wall surface of the first column b304. The protective plates can be made of conductive materials or materials containing conductive substances, so that the first sensing antenna 305 and the second sensing antenna 312 can still collect the magnetic field signal released outward by the lightning signal simulation device 1 through the protective plates.

[0134] In this embodiment, the rotating component 4 includes a rotating mechanism, a dial 403, a tray 404 and a pointer 405, wherein the bottom of the rotating mechanism is fixed on the Helmholtz coil, the dial 403 is fixed on the rotating mechanism, the tray 404 is rotatably connected to the rotating mechanism and is arranged on the dial 403, the pointer 405 is fixed on the tray 404, and its bottom end is adjacent to the dial 403, and the lightning detection component is fixed on the tray 404.

[0135] Furthermore, the rotating mechanism includes a bottom fixing member 401, and a rotating shaft assembly 402 mounted on the bottom fixing member 401, a dial 403 is sleeved and fixed on the outside of the rotating shaft assembly 402, a tray 404 is fixed on the top of the rotating shaft assembly 402, and a pointer 405 is fixed on the outer wall of the tray 404. Since the diameter of the tray 404 is smaller than the diameter of the dial 403, it is convenient to check the position indicated by the pointer 405, so as to understand the current position of the lightning detection assembly.

[0136] In this embodiment, the processor includes a first processor, a second processor and a fourth processor, wherein the first processor receives a first magnetic field signal and obtains a first magnetic field signal value according to the first magnetic field signal.

[0137] The second processor receives the second magnetic field signal and obtains a second magnetic field signal value according to the second magnetic field signal. The fourth processor stores a preset calibration azimuth and a preset calibration magnetic field signal value corresponding to the current detection position, obtains a current azimuth according to the first magnetic field signal value and the second magnetic field signal value, and compares the current azimuth with the calibration azimuth. If it is determined that the current azimuth is inconsistent with the calibration azimuth, the current azimuth is adjusted to be consistent with the calibration azimuth.

[0138] Specifically, after the first processor and the second processor obtain the first magnetic field signal and the second magnetic field signal respectively, they can use the existing magnetic field signal value calculation algorithm to obtain the first magnetic field signal value E respectively. X and the second magnetic field signal value E Y .

[0139] The fourth processor obtains the first magnetic field signal value E X and the second magnetic field signal value E Y Then, the current azimuth angle θ is obtained using the following formula:

[0140]

[0141] Furthermore, after obtaining the current detection position of the lightning detection component on the rotating component 4, the fourth processor obtains the corresponding preset calibration azimuth θ` according to the current detection position, and compares the current azimuth θ with the calibration azimuth θ`. If it is determined that the current azimuth θ is inconsistent with the calibration azimuth θ`, the current azimuth θ is adjusted to be consistent with the calibration azimuth θ`.

[0142] Exemplarily, if it is determined that the current azimuth is inconsistent with the calibrated azimuth, the current azimuth is adjusted to be consistent with the calibrated azimuth, including but not limited to the following two situations.

[0143] Among them, the implementation steps of situation one are the same as the implementation steps S1041 to S1043 recorded in embodiment one, and the implementation steps of situation two are the same as the implementation steps S1041` to S1044` recorded in embodiment one.

[0144] In this embodiment, a control part is also included. The control part is connected to the lightning signal simulation device 1, and controls the lightning signal simulation device 1 to generate and release a set magnetic field signal according to an input instruction. The processor is placed inside the control part, and the electric field antenna 2 and the magnetic field antenna 3 components are respectively connected to the control part through transmission lines, so that the electric field antenna 2 and the magnetic field antenna 3 components are connected to the processor. In addition, the current detection position of the lightning detection component after rotation can be manually input or automatically input into the control part through an acquisition device.

[0145] In this embodiment, the processor is preferably a circuit board having the first processor, the second processor and the fourth processor solidified thereon.

[0146] Embodiment 4

[0147] This embodiment provides a calibration device for implementing Figure 3 The calibration method described in the above embodiment is different from the calibration device in the above embodiment in that:

[0148] The processor also includes a third processor, which is connected to the electric field antenna assembly through a third transmission line, receives a third magnetic field signal collected by the electric field antenna, and obtains a third magnetic field signal value.

[0149] The fourth processor stores a preset calibration magnetic field signal value corresponding to the current detection position. The third magnetic field signal value is compared with the calibration magnetic field signal value. If it is determined that the third magnetic field signal value is greater than the calibration magnetic field signal value, the current azimuth is compared with the calibration azimuth. If it is determined that the current azimuth is inconsistent with the calibration azimuth, the current azimuth is adjusted to be consistent with the calibration azimuth.

[0150] Further, the third processor receives the third magnetic field signal, and obtains a third magnetic field signal value E according to the third magnetic field signal. Z , and the third magnetic field signal value E Z and the calibration magnetic field signal value E Z` If the third magnetic field signal value E is determined Z Greater than the calibration magnetic field signal value E Z` , then call the calibration azimuth θ` with the current detection position.

[0151] In this embodiment, after the first processor, the second processor and the third processor obtain the first magnetic field signal, the second magnetic field signal and the third magnetic field signal respectively, they can use the existing magnetic field signal value calculation algorithm to obtain the first magnetic field signal value E respectively. X , the second magnetic field signal value E Y and the third magnetic field signal value E Z .

[0152] Further, the fourth processor is based on the first magnetic field signal value E X and the second magnetic field signal value E Y The current azimuth angle θ is obtained, and it is determined whether the current azimuth angle θ is consistent with the calibration azimuth angle θ`. If the current azimuth angle θ is inconsistent with the calibration azimuth angle θ`, the current azimuth angle is adjusted to be consistent with the calibration azimuth angle.

[0153] Exemplarily, if it is determined that the current azimuth is inconsistent with the calibrated azimuth, the current azimuth is adjusted to be consistent with the calibrated azimuth, including but not limited to the following two situations.

[0154] Among them, the implementation steps of situation one are the same as the implementation steps S1041 to S1043 recorded in embodiment one, and the implementation steps of situation two are the same as the implementation steps S1041` to S1044` recorded in embodiment one.

[0155] In this embodiment, the processor is preferably a circuit board having a first processor, a second processor, a third processor and a fourth processor solidified thereon.

[0156] The above description is only a preferred embodiment of the present invention, which is only illustrative and not restrictive of the present invention. Those skilled in the art understand that many changes, modifications, and even equivalences may be made to the present invention within the spirit and scope defined by the claims of the present invention, but all of them will fall within the scope of protection of the present invention.

Claims

1. A method for calibrating the azimuth angle of a lightning detection component, characterized in that: The following steps are involved: After the lightning detection component is rotated to the current detection position, the electric field antenna and the magnetic field antenna component collect the magnetic field signal released outward by the lightning signal simulation device, and obtain the current detection position of the lightning detection component; Calling the preset calibration azimuth when the lightning detection component is in the current detection position; Obtaining the current azimuth angle when the magnetic field antenna assembly is at the current detection position; The current azimuth is compared with the calibrated azimuth. If it is determined that the current azimuth is inconsistent with the calibrated azimuth, the current azimuth is adjusted to be consistent with the calibrated azimuth.

2. The azimuth calibration method of a lightning detection assembly according to claim 1, characterized in that: In the calling of the preset calibration azimuth when the lightning detection component is in the current detection position, it includes: According to the current detection position of the lightning detection component, the preset calibration azimuth corresponding to the current detection position stored in the fourth processor is called.

3. The azimuth calibration method of a lightning detection assembly according to claim 1, characterized in that: In the calling of the preset calibration azimuth when the lightning detection component is in the current detection position, it includes: The electric field antenna component inputs the received magnetic field signal into the third processor to obtain a corresponding third magnetic field signal value; According to the current detection position of the lightning detection component, calling the preset calibration magnetic field signal value corresponding to the current detection position stored in the fourth processor; The third magnetic field signal value is compared with the calibration magnetic field signal value. If the third magnetic field signal value is greater than the calibration magnetic field signal value, the calibration azimuth corresponding to the current detection position pre-stored in the fourth processor is called.

4. The azimuth calibration method of a lightning detection assembly according to claim 2 or 3, characterized in that: The step of obtaining the current azimuth angle when the magnetic field antenna assembly is at the current detection position includes: The magnetic field antenna component inputs the received magnetic field signal into the first processor and the second processor respectively to obtain a first magnetic field signal value and a second magnetic field signal value; The current azimuth angle of the magnetic field antenna component when it is at the current detection position is obtained according to the first magnetic field signal value and the second magnetic field signal value.

5. A calibration device, characterized in that: The azimuth calibration method for implementing the lightning detection assembly according to any one of claims 1 to 4 comprises: Lightning signal simulation equipment generates and releases a set magnetic field signal according to input instructions; A rotating component is fixed inside the lightning signal simulation device and rotates the lightning detection component to a current detection position; A lightning detection component is fixed on the rotating component, and includes an electric field antenna and a magnetic field antenna component. The electric field antenna is fixed on the top end surface of the magnetic field antenna component, wherein the electric field antenna and the magnetic field antenna component are both used to collect the magnetic field signal released outward by the lightning signal simulation device; A processor, configured to obtain at least a first magnetic field signal value, a second magnetic field signal value, a preset calibration azimuth corresponding to a current detection position, and a preset calibration magnetic field signal value; Obtaining a current azimuth according to the first magnetic field signal value and the second magnetic field signal value; The current azimuth is compared with the calibrated azimuth, and if it is determined that the current azimuth is inconsistent with the calibrated azimuth, the current azimuth is adjusted to be consistent with the calibrated azimuth.

6. The calibration device according to claim 5, characterized in that: The magnetic field antenna assembly includes a top plate, a bottom plate, a first vertical orthogonal induction antenna, a second vertical orthogonal induction antenna and a circuit board, wherein the top plate and the bottom plate are respectively fixed on the top and bottom of the first vertical orthogonal induction antenna and the second vertical orthogonal induction antenna, and the circuit board is arranged on the bottom plate, wherein the first vertical orthogonal induction antenna collects a first magnetic field signal released outwardly by the lightning signal simulation device, and the second vertical orthogonal induction antenna collects a second magnetic field signal released outwardly by the lightning signal simulation device.

7. The calibration device according to claim 6, characterized in that: The first vertical orthogonal sensing antenna includes a first column a, a first column b and a first sensing antenna, wherein the first column a and the first column b are opposite to each other and spaced apart, the first sensing antenna is distributed on the first column a and the first column b, and both ends of the first sensing antenna are connected to the circuit board; The second vertical orthogonal sensing antenna includes a second column a, a second column b and a second sensing antenna, wherein the second column a and the second column b are opposite to each other and arranged at an interval, the second sensing antenna is distributed on the second column a and the second column b, and both ends of the second sensing antenna are connected to the circuit board.

8. The calibration device according to claim 7, characterized in that: The circuit board is cured with a first interface a, a first interface b, a second interface a, a second interface b, a first connecting column a, a first connecting column b, a second connecting column a and a second connecting column b, wherein the first interface a and the first interface b are connected to the first connecting column a and the first connecting column b respectively, the second interface a and the second interface b are connected to the second connecting column a and the second connecting column b respectively, the first sensing antenna is connected to the processor via the first interface a and the first connecting column a, and the first interface b and the first connecting column b, and the second sensing antenna is connected to the processor via the second interface a and the second connecting column a, and the second interface b and the second connecting column b.

9. The calibration device according to claim 5, characterized in that: The processor includes a first processor, a second processor and a fourth processor, wherein the first processor receives the first magnetic field signal and obtains a first magnetic field signal value according to the first magnetic field signal; The second processor receives the second magnetic field signal, and obtains a second magnetic field signal value according to the second magnetic field signal; The fourth processor stores a plurality of the calibrated azimuths and a plurality of the calibrated magnetic field signal values, and calls the corresponding calibrated azimuth or the calibrated magnetic field signal value according to the received current detection position, and obtains the current azimuth according to the first magnetic field signal value and the second magnetic field signal value, and compares the current azimuth with the calibrated azimuth. If it is determined that the current azimuth is inconsistent with the calibrated azimuth, the current azimuth is adjusted to be consistent with the calibrated azimuth.

10. The calibration device according to claim 9, characterized in that: The processor also includes a third processor, which receives a third magnetic field signal collected by the electric field antenna and obtains a third magnetic field signal value according to the third magnetic field signal; The fourth processor compares the third magnetic field signal value with the calibrated magnetic field signal value. If it is determined that the third magnetic field signal value is greater than the calibrated magnetic field signal value, the current azimuth is compared with the calibrated azimuth. If it is determined that the current azimuth is inconsistent with the calibrated azimuth, the current azimuth is adjusted to be consistent with the calibrated azimuth.

11. The calibration device according to claim 5, characterized in that: The rotating assembly includes a rotating mechanism, a dial, a tray and a pointer, wherein the dial is fixed on the rotating mechanism, the tray is rotatably connected to the rotating mechanism and is arranged on the dial, the pointer is fixed on the tray, and its bottom end is adjacent to the dial, and the lightning detection assembly is fixed on the tray.

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