Azimuth calibration method and calibration device for lightning detection assembly

Abstract

The present invention provides an azimuth calibration method and device for a lightning detection assembly, comprising the following steps: after the lightning detection assembly is rotated to a current detection position, an electric field antenna and a magnetic field antenna assembly collect magnetic field signals released outwardly by a lightning signal simulation device, and obtain the current detection position of the lightning detection assembly; calling a preset calibration azimuth when the lightning detection assembly is in the current detection position; obtaining the current azimuth when the magnetic field antenna assembly is in the current detection position; comparing the current azimuth with the calibration azimuth, and if it is determined that the current azimuth is inconsistent with the calibration azimuth, adjusting the current azimuth to be consistent with the calibration azimuth. The present invention can accurately calibrate the azimuth of the lightning detection assembly, thereby ensuring the accuracy and reliability of the lightning detection assembly.

Description

Technical Field

[0001] The present 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 lightning formation and occurrence, as well as flashes, strong electromagnetic radiation, and high currents generated by lightning discharges. These physical effects can severely harm production and daily life in industries such as electricity, communications, transportation, and petrochemicals.

[0003] Ground-based atmospheric electric field detection equipment is a crucial component in lightning early warning systems. The lightning detection component is a crucial component for detecting lightning signals, and the azimuth angle measurement accuracy of the lightning detection component is crucial to its performance. However, due to manufacturing errors within the lightning detection component itself, environmental factors, and limitations of the measurement equipment, azimuth angle measurements often exhibit certain errors.

[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 order to solve the above-mentioned problems, the present invention provides a method and device for calibrating the azimuth angle 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 objectives, in a first aspect, the present invention provides a method for calibrating the azimuth angle of a lightning detection assembly, comprising the following steps:

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

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

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

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

[0011] In one embodiment, 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 embodiment, 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] calling, according to the current detection position of the lightning detection component, a 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 of the magnetic field antenna assembly when it is in the current detection position includes:

[0018] The magnetic field antenna assembly 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 assembly is fixed inside the lightning signal simulation device and rotates the lightning detection assembly to a current detection position;

[0023] a lightning detection assembly, fixed to the rotating assembly, comprising an electric field antenna and a magnetic field antenna assembly, wherein the electric field antenna is fixed to the top end surface of the magnetic field antenna assembly, wherein both the electric field antenna and the magnetic field antenna assembly collect magnetic field signals 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 angle according to the first magnetic field signal value and the second magnetic field signal value;

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

[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 induction antenna includes a second column a, a second column b and a second induction antenna, wherein the second column a and the second column b are opposite to each other and spaced apart, the second induction antenna is distributed on the second column a and the second column b, and both ends of the second induction 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, and 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 through 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 through 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 several calibrated azimuths and several calibrated magnetic field signal values, and calls the corresponding calibrated azimuths or the calibrated magnetic field signal values ​​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 that 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 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 angle is compared with the calibration azimuth angle. If it is determined that the current azimuth angle is inconsistent with the calibration azimuth angle, the current azimuth angle is adjusted to be consistent with the calibration azimuth angle.

[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, ensuring 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 This 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 perspective view of an embodiment of a calibration device according to 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-Baseboard;

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

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

[0048] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts 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 assembly is rotated to the current detection position, the electric field antenna and the magnetic field antenna assembly collect the magnetic field signal released outward by the lightning signal simulation device and obtain the current detection position of the lightning detection assembly;

[0051] S2. Calling the preset calibration azimuth when the lightning detection component is at the current detection position;

[0052] S3. Obtaining the current azimuth angle of the magnetic field antenna assembly when it is at the current detection position;

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

[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 calibration azimuth, thereby ensuring the accuracy and reliability of the lightning detection component.

[0055] Example 1

[0056] like Figure 2 As shown, this embodiment provides a method for calibrating the azimuth angle of a lightning detection assembly, comprising the following steps:

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

[0058] Specifically, after the lightning detection component is placed on the rotatable tray, the lightning detection component is located above the dial. 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 equipment.

[0059] The lightning signal simulator generates and releases a set magnetic field signal based on input from the control unit. Because the rotating assembly is fixed inside the lightning signal simulator, when the lightning signal simulator releases the set magnetic field signal, the electric field antenna and magnetic field antenna assembly collect the magnetic field signal released by the lightning signal simulator.

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

[0061] Specifically, after receiving the input 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: Obtain 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 The present patent application does not limit the existing magnetic field signal value calculation algorithm.

[0065] S103: Obtain the current azimuth angle of the magnetic field antenna assembly when it is at 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, use the following formula to get the current azimuth angle θ:

[0067]

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

[0069] Specifically, if it is determined that 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, 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 and the calibration azimuth angle θ' corresponding to the current detection position obtained by the control part are accurate; if so, executing step S1042; if not, adjusting them to be accurate;

[0072] S1042. Adjust 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 the magnetic field signal collected by the first sensing antenna and / or the second sensing antenna, etc.);

[0073] S1043. The magnetic field antenna assembly 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, or 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, or between the current second magnetic field signal value and the previous second magnetic field signal value, the current azimuth angle θ is obtained based on 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 calibration azimuth angle θ';

[0077] S1042`, adjusting the current detection position of the replaced lightning detection assembly 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 corresponding calibration azimuth angle θ`;

[0078] S1043: Determine whether the current detection position of the lightning detection component and the calibration azimuth angle θ' corresponding to the current detection position obtained by the control part are accurate. If so, execute step S1042; if not, adjust 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, or 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, or between the current second magnetic field signal value and the previous second magnetic field signal value, the current azimuth angle θ is obtained based on 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] Example 2

[0082] like Figure 3 As shown, this embodiment provides a method for calibrating the azimuth angle of a lightning detection assembly, comprising the following steps:

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

[0084] Specifically, after the lightning detection component is placed on the rotatable tray, the lightning detection component is located above the dial. 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 equipment.

[0085] The lightning signal simulator generates and releases a set magnetic field signal based on input from the control unit. Because the rotating assembly is fixed inside the lightning signal simulator, when the lightning signal simulator releases the set magnetic field signal, the electric field antenna and magnetic field antenna assembly collect the magnetic field signal released by the lightning signal simulator.

[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 The present 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 and determine 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 The present patent application does not limit the existing magnetic field signal value calculation algorithm.

[0095] S205: Obtain the current azimuth angle of the magnetic field antenna assembly when it is at 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, use the following formula to get the current azimuth angle θ:

[0097]

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

[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 methods described in the , 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 the current detection position;

[0104] A lightning detection assembly is fixed to the rotating assembly and includes an electric field antenna and a magnetic field antenna assembly. The electric field antenna is fixed to the top end surface of the magnetic field antenna assembly. The electric field antenna and the magnetic field antenna assembly 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 angle is compared with the calibration azimuth angle. If it is determined that the current azimuth angle is inconsistent with the calibration azimuth angle, the current azimuth angle is adjusted to be consistent with the calibration azimuth angle.

[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 calibration azimuth, thereby ensuring the accuracy and reliability of the lightning detection component.

[0109] Example 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 invention 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 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 assembly 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 to the top and bottom of the first vertical orthogonal induction antenna and the second vertical orthogonal induction antenna, and 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 shaped like a cross, and a plurality of supporting protrusions are provided on the top end face of each end 301 in the cross. 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 structure. The circuit board 316 is fixed to 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 sidewalls of the platform, wherein the extensions are located directly below the end portions 301 .

[0119] Specifically, the first vertical orthogonal sensing antenna includes a first column a303, a first column b304 and a first sensing 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 sensing antenna 305 is distributed on the first column a303 and the first column b304, and both ends of the first sensing antenna 305 are connected to the circuit board 316.

[0120] Furthermore, the first column a303 includes a first middle portion a, a first upper end portion a, a first lower end portion a, a first upper support member a306, and a first lower support member a307. The first upper end portion a and the first lower end portion a are fixed to the ends of the first middle portion a, respectively. The first upper end portion a includes a first upper through-hole a and a first upper connecting end a, and the first upper end portion a is connected to the adjacent end portion 301 via the first connecting end a. The first lower end portion a includes a first lower through-hole a and a first lower connecting end a, and the first lower end portion a is connected to the adjacent extended end via the first lower connecting end a. The first upper support member a306 is formed with a slot for retaining the first sensing antenna 305. A portion of the first upper support member a306 is fixed to the first upper end portion a, while the remaining portion is positioned in the first upper through-hole a. The first lower support member a307 is formed with a slot for retaining the first sensing antenna 305. A portion of the first lower support member a307 is fixed to the first lower end portion a, while the remaining portion is positioned in the first lower through-hole a.

[0121] Furthermore, 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. The first upper end b and the first lower end b are fixed to the ends of the first middle portion b, respectively. 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 via 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 extended end via the first lower connecting end b. The first upper support member b308 is formed with a slot for retaining the first sensing antenna 305. A portion of the first upper support member b308 is fixed to the first upper end b, while the remaining portion is positioned in the first upper through-hole b. The first lower support member b309 is formed with a slot for retaining the first sensing antenna 305. A portion of the first lower support member b309 is fixed to the first lower end b, while the remaining portion is positioned in the first lower through-hole b.

[0122] Specifically, the second vertical orthogonal sensing antenna includes a second column a310, a second column b311 and a second sensing 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 sensing antenna 312 is distributed on the second column a310 and the second column b311, and both ends of the second sensing antenna 312 are connected to the circuit board 316.

[0123] Furthermore, 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. The second upper end portion a and the second lower end portion a are fixed to the ends of the second middle portion a, respectively. 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 via 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 extended end via the second lower connecting end a. The second upper support member a313 is formed with a slot for retaining the second sensing antenna 312. A portion of the second upper support member a313 is fixed to the second upper end portion a, while the remaining portion is positioned in the second upper through-hole a. The second lower support member a314 is formed with a slot for retaining the second sensing antenna 312. A portion of the second lower support member a314 is fixed to the second lower end portion a, while the remaining portion is positioned in the second lower through-hole a.

[0124] Furthermore, 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. The second upper end b and the second lower end b are fixed to the ends of the second middle portion b, respectively. 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 via 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 extended end via the second lower connecting end b. The second upper support member b is formed with a slot for retaining the second sensing antenna 312. A portion of the second upper support member b is fixed to the second upper end b, while the remaining portion is positioned in the second upper through-hole b. The second lower support member b315 is formed with a slot for retaining the second sensing antenna 312. A portion of the second lower support member b315 is fixed to the second lower end b, while the remaining portion is positioned in 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 wire 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 the adjacent wire 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, both the first sensing antenna 305 and the second sensing antenna 312 employ a strip-shaped structure. By employing the aforementioned arrangement, the first sensing antenna 305 and the second sensing antenna 312 form a ring-shaped structure. Compared to the prior art method of simply wrapping a conductive coil around the first pillar a303, the first pillar b304, the second pillar a310, and the second pillar b311, this simplifies the installation of the first sensing antenna 305 and the second sensing antenna 312, expands the range of the set collection area, and later adjusts the sensitivity of the first sensing antenna 305 and the second sensing antenna 312 through the control unit and related programs, thereby increasing the sensitivity of collecting magnetic field signals.

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

[0133] Furthermore, in this embodiment, to prevent damage to the first sensing antenna 305, the second sensing antenna 312, and the circuit board 316, protective plates are installed on at least the top of the base plate 302, the outer wall of the first column a 303, the outer wall of the first column b 304, the outer wall of the first column a 303, and the outer wall of the first column b 304. The protective plates can be made of a conductive material or a material containing a conductive substance, so that the first sensing antenna 305 and the second sensing antenna 312 can still collect the magnetic field signal emitted by the lightning signal simulation device 1 through the protective plates.

[0134] In this embodiment, the rotating assembly 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 assembly 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 to the outside of the rotating shaft assembly 402. A tray 404 is fixed to the top of the rotating shaft assembly 402. A pointer 405 is fixed to the outer wall of the tray 404. Because the diameter of the tray 404 is smaller than that of the dial 403, it is easy to check the position indicated by the pointer 405, thereby understanding 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 based on 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 based on the first magnetic field signal value and the second magnetic field signal value, compares the current azimuth with the calibration azimuth, and adjusts the current azimuth to be consistent with the calibration azimuth if it is determined that the current azimuth is inconsistent 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 angle θ` based on the current detection position, and compares the current azimuth angle θ with the calibration azimuth angle θ`. If it is determined that the current azimuth angle θ is inconsistent with the calibration azimuth angle θ`, the current azimuth angle θ is adjusted to be consistent with the calibration azimuth angle θ`.

[0142] Exemplarily, if it is determined that the current azimuth angle is inconsistent with the calibrated azimuth angle, the current azimuth angle is adjusted to be consistent with the calibrated azimuth angle, 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] This embodiment also includes a control unit. The control unit 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 based on input instructions. A processor is located within the control unit. The electric field antenna 2 and magnetic field antenna 3 components are each connected to the control unit via transmission lines, thereby connecting the electric field antenna 2 and magnetic field antenna 3 components to the processor. Furthermore, the current detection position of the lightning detection component after rotation can be manually input into the control unit or automatically input via a data acquisition device.

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

[0146] Example 4

[0147] This embodiment provides a calibration device for implementing Figure 3 The calibration method described in the preceding embodiment differs from the calibration device in the following aspects:

[0148] The processor also includes a third processor, which is connected to the electric field antenna component through a third transmission line, receives the 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, compares the third magnetic field signal value with the calibration magnetic field signal value, and if it is determined that the third magnetic field signal value is greater than the calibration magnetic field signal value, compares the current azimuth with the calibration azimuth, and if it is determined that the current azimuth is inconsistent with the calibration azimuth, adjusts the current azimuth to be consistent with the calibration azimuth.

[0150] Furthermore, 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` Compare. 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] Furthermore, the fourth processor generates a signal according to the first magnetic field signal value E. X and the second magnetic field signal value E Y Obtain the current azimuth angle θ and determine 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', adjust the current azimuth angle to be consistent with the calibration azimuth angle.

[0153] Exemplarily, if it is determined that the current azimuth angle is inconsistent with the calibrated azimuth angle, the current azimuth angle is adjusted to be consistent with the calibrated azimuth angle, 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 on which the first processor, the second processor, the third processor, and the fourth processor are solidified.

[0156] The above description is merely a preferred embodiment of the present invention and is intended to be illustrative rather than restrictive of the present invention. Those skilled in the art will appreciate that many changes, modifications, and even equivalents may be made to the present invention within the spirit and scope of the claims, all of which 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 azimuth calibration method is implemented based on an azimuth calibration device, which includes: a lightning signal simulation device that generates and releases a set magnetic field signal according to an input instruction; a rotating component that is fixed inside the lightning signal simulation device and rotates the lightning detection component to a current detection position; a lightning detection component that is fixed to the rotating component and includes an electric field antenna and a magnetic field antenna component, wherein the electric field antenna is fixed to the top end surface of the magnetic field antenna component, wherein the electric field antenna and the magnetic field antenna component both collect the magnetic field signal released outward by the lightning signal simulation device; 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 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 spaced apart, 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; The azimuth calibration method comprises the following steps: After the lightning detection assembly is rotated to the current detection position, the electric field antenna and the magnetic field antenna assembly collect the magnetic field signal released outward by the lightning signal simulation device and obtain the current detection position of the lightning detection assembly; Calling the preset calibration azimuth when the lightning detection component is in the current detection position; Obtaining the current azimuth angle of the magnetic field antenna assembly when it is at the current detection position; The current azimuth angle is compared with the calibration azimuth angle. If it is determined that the current azimuth angle is inconsistent with the calibration azimuth angle, the current azimuth angle is adjusted to be consistent with the calibration azimuth angle.

2. The azimuth calibration method of a lightning detection assembly according to claim 1, characterized in that: The preset calibration azimuth angle when calling the lightning detection component to be in the current detection position 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: The preset calibration azimuth angle when calling the lightning detection component to be in the current detection position 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; calling, according to the current detection position of the lightning detection component, a 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 assembly 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. The azimuth calibration method of a lightning detection assembly according to claim 1, characterized in that: The azimuth calibration device also includes: 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 angle according to the first magnetic field signal value and the second magnetic field signal value; The current azimuth angle is compared with the calibrated azimuth angle. If it is determined that the current azimuth angle is inconsistent with the calibrated azimuth angle, the current azimuth angle is adjusted to be consistent with the calibrated azimuth angle.

6. The azimuth calibration method of a lightning detection assembly according to claim 5, characterized in that: 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.

7. The azimuth calibration method of a lightning detection assembly according to claim 6, characterized in that: 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 are cured on the circuit board, 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. The first sensing antenna is connected to the processor through 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 through the second interface a and the second connecting column a, and the second interface b and the second connecting column b.

8. The azimuth calibration method of a lightning detection assembly 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 several calibrated azimuths and several calibrated magnetic field signal values, and calls the corresponding calibrated azimuths or the calibrated magnetic field signal values ​​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.

9. The azimuth calibration method of a lightning detection assembly according to claim 8, characterized in that: The processor further includes a third processor that 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 calibration magnetic field signal value, and if it is determined that the third magnetic field signal value is greater than the calibration magnetic field signal value, calls a calibration azimuth corresponding to the current detection position; The fourth processor compares the current azimuth with the calibrated azimuth, and if it is determined that the current azimuth is inconsistent with the calibrated azimuth, adjusts the current azimuth to be consistent with the calibrated azimuth.

10. The azimuth calibration method of a lightning detection assembly 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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