Distributed real-time testing method and system for strong electromagnetic pulse radiation field

Abstract

The invention discloses a distributed real-time test method and system for a strong electromagnetic pulse radiation field, and the system comprises an electric field probe, a test receiver, a test unmanned plane, a test unmanned plane remote controller, and a terminal computer. The test unmanned aerial vehicle remote controller controls the test unmanned aerial vehicle to carry the electric field probe to a specified test position in a collection environment, and the electric field probe sends intensity data to the test receiver after acquiring the intensity data of the specified test position; and the test receiver transmits the intensity data to a terminal computer for processing. The collected intensity data is subjected to secondary processing through the test receiver and the terminal computer, the total field radiation intensity value and the comprehensive radiation intensity value are calculated, the maximum position of the electromagnetic radiation intensity of the strong electromagnetic pulse can be rapidly and accurately measured, and the problem that large-range, high-field-intensity and high-precision electromagnetic radiation intensity detection cannot be realized is solved. And the problem of real-time testing of a large dynamic strong electromagnetic pulse radiation field is solved.

Description

Technical Field

[0001] The invention belongs to the field of electromagnetic field testing, and in particular relates to a distributed real-time testing method and system for a strong electromagnetic pulse radiation field. Background Art

[0002] When a strong electromagnetic pulse device radiates a strong electromagnetic pulse through an antenna, it will generate radiation fields of different magnitudes in the surrounding area. Due to the large fluctuations in the radiation field of the near-field electromagnetic radiation, the near-field radiation electric field intensity of the strong electromagnetic pulse device is unevenly distributed and fluctuates significantly. The existing testing methods and systems require a large number of tests, and due to the limitations of the dynamic test range of the test antenna, the test antenna needs to be replaced multiple times, resulting in a huge testing workload.

[0003] For example, the patent document with the publication number CN107741541A specifically discloses a near-field test method for the electromagnetic field strength inside a rail transit vehicle. First, by collecting the electromagnetic signal at the target position when the rail transit vehicle is running, the electromagnetic signal corresponding to the radiation intensity of any specified position in the electromagnetic field environment where each component in the rail transit vehicle is located is obtained; then, the electromagnetic signal is subjected to interference removal, frequency mixing conversion, filtering and detection processing to obtain an effective electromagnetic signal, and the electromagnetic field strength value corresponding to the effective electromagnetic signal is obtained, which can provide a reference for the tester. However, during the test process, the signal processing process is complicated, the test volume is large, and the scope of application is targeted.

[0004] In summary, the existing test methods and systems are difficult to meet the needs of fast, convenient and accurate testing of the radiation field of strong electromagnetic pulse equipment. There is an urgent need for a system and method that can be used to obtain the electric field radiation distribution of the near field of electromagnetic radiation of strong electromagnetic pulse equipment to solve the technical problems of large test workload and inability to achieve large-scale, high-field-strength, and large-dynamic strong electromagnetic pulse radiation field real-time testing. Summary of the invention

[0005] In order to solve the above technical problems, the present application provides a distributed real-time testing system for a strong electromagnetic pulse radiation field, comprising:

[0006] The electric field probe is used to collect the strong electromagnetic pulse radiation field intensity data in the environment. The strong electromagnetic pulse radiation field is generated by the strong electromagnetic pulse equipment. The collection environment refers to the relevant position range of the continuous pulses radiated by the strong electromagnetic pulse equipment. The intensity data includes the horizontal polarization radiation intensity E H Data and vertical polarization radiation intensity E V data;

[0007] A test receiver, used for receiving the intensity data acquired by the electric field probe, calculating the total field radiation intensity E data according to the intensity data, and transmitting the total field radiation intensity E data to the terminal computer;

[0008] A test drone, used to carry the electric field probe to a designated test location in a collection environment;

[0009] A test drone remote controller, used to control the position and attitude of the test drone;

[0010] The terminal computer is used to receive the total field radiation intensity E data transmitted by the test receiver, and calculate the comprehensive radiation intensity value E through the acquired total field radiation intensity E data. A , and display the test results of strong electromagnetic pulse radiation field;

[0011] When executing a test task, the test drone remote control controls the test drone carrying the electric field probe to a designated test location in the collection environment. After the electric field probe obtains the intensity data of the designated test location, it sends the intensity data to the test receiver; the test receiver transmits the intensity data to the terminal computer for processing.

[0012] Furthermore, the test system prepares for testing before executing the test task, including:

[0013] Setting the elevation angle of the radiation antenna of the strong electromagnetic pulse device to zero;

[0014] The test drone remote controller controls the test drone carrying the electric field probe to hover at an initial test position in sequence along the main axis direction of the strong electromagnetic pulse device radiation antenna.

[0015] Furthermore, the number of the electric field probes is at least 5, and each of the test drones is equipped with one electric field probe.

[0016] Furthermore, when there are five electric field probes, the initial test position is:

[0017] The hovering height is consistent with the center height of the strong electromagnetic pulse device radiation antenna.

[0018] Wherein, D is the diameter of the electromagnetic pulse device radiation antenna, unit: m; λ is the radiation wavelength of the electromagnetic pulse device, unit: m.

[0019] Furthermore, the test receiver sets the number of receiving channels corresponding to the number of the electric field probes, and can independently receive the test data of all the electric field probes at the same time.

[0020] Furthermore, the test drone is an electromagnetically reinforced multi-rotor drone.

[0021] Furthermore, the total field radiation intensity E is calculated as follows:

[0022]

[0023] Where E is the total field radiation intensity, in kV / m; E V is the vertical polarization radiation intensity, unit is kV / m; E H It is the horizontal polarization radiation intensity, unit is kV / m.

[0024] Furthermore, the comprehensive radiation intensity value E A , the calculation method is:

[0025]

[0026] Among them, E A is the comprehensive radiation intensity, in kV / m; n is the number of pulses continuously radiated by the strong electromagnetic pulse equipment, E i is the total field radiation intensity of the ith pulse, in kV / m, and the value of i ranges from 1 to n.

[0027] The present invention also provides a testing method for a strong electromagnetic pulse radiation field distributed real-time testing system, comprising the following steps:

[0028] S1100: Preparation for the strong electromagnetic pulse radiation field test, including setting the pitch angle of the strong electromagnetic pulse device radiation antenna to zero, and controlling the test drone to hover at the initial position in turn through the test drone remote control;

[0029] S1200: Strong electromagnetic pulse radiation field test, including setting the strong electromagnetic pulse device to continuously radiate n pulses, and obtaining the horizontal polarization radiation intensity E of the strong electromagnetic pulse device at the position of the test drone through the electric field probe H Data and vertical polarization radiation intensity E V The data are transmitted back to the test receiver respectively;

[0030] S1300: strong electromagnetic pulse radiation field test data processing and display, including, the test receiver according to the horizontal polarization radiation intensity E at each position H Data and vertical polarization radiation intensity E V The total field radiation intensity E of each pulse at each position is calculated by the data. The test receiver uploads the total field radiation intensity E value of the current test position to the terminal computer. The terminal computer calculates each group of comprehensive radiation intensity values ​​E by obtaining the total field radiation intensity E data. A , and display and save in a two-dimensional rectangular coordinate system chart;

[0031] S1400: Control all the test drones through the test drone remote control to move forward 2m each time along the main axis direction of the strong electromagnetic pulse device radiation antenna, and repeat steps S1200 to S1300 until all the test drones move forward to the end position respectively, and the test is completed.

[0032] Furthermore, when there are five test drones, the final positions of the test drones are:

[0033] The beneficial effects of the present invention are as follows: by adopting a test drone equipped with an electric field probe to collect radiation intensity data of a strong electromagnetic pulse radiation field environment, the collected intensity data is subjected to secondary processing by a test receiver and a terminal computer, and the total field radiation intensity value and the comprehensive radiation intensity value are respectively calculated, so that the maximum position of the electromagnetic radiation intensity of the strong electromagnetic pulse can be measured quickly and accurately, thereby solving the problem of being unable to realize large-scale, high-field-strength, and large-dynamic strong electromagnetic pulse radiation field real-time testing, and then the near-field radiation electric field intensity envelope curve of the strong electromagnetic pulse device can be drawn, which can be used as a basis for selecting the placement position of other devices that need to be placed close to the strong electromagnetic pulse device, and also provides a reference for setting the safety distance of personnel when the strong electromagnetic pulse device is working. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 2 is a schematic diagram of the system structure of a distributed real-time testing system for a strong electromagnetic pulse radiation field according to an embodiment of the present invention;

[0035] Figure 2 It is a test interface block diagram of a distributed real-time test system for a strong electromagnetic pulse radiation field of a terminal computer according to an embodiment of the present invention;

[0036] Figure 3 It is a test flow chart of a distributed real-time test method for a strong electromagnetic pulse radiation field according to an embodiment of the present invention. DETAILED DESCRIPTION

[0037] The technical solution of the present invention is further described below, but the scope of protection claimed is not limited to the description.

[0038] The embodiment of the present invention provides a distributed real-time test method and system for a strong electromagnetic pulse radiation field. The system includes an electric field probe, a test receiver, a test drone, a test drone remote control, and a terminal computer. The radiation intensity data of the strong electromagnetic pulse radiation field environment is collected by using a test drone equipped with an electric field probe. The collected intensity data is processed secondary by the test receiver and the terminal computer, and the total field radiation intensity value and the comprehensive radiation intensity value are calculated respectively. The maximum position of the electromagnetic radiation intensity of the strong electromagnetic pulse can be measured quickly and accurately, solving the problem of being unable to realize large-scale, high-field-strength, and large-dynamic strong electromagnetic pulse radiation field real-time testing. The specific implementation method of the present invention is described in detail below in conjunction with the drawings of the specification.

[0039] The embodiment of the present invention provides a distributed real-time testing system for a strong electromagnetic pulse radiation field. Figure 1 As shown, including:

[0040] The electric field probe is used to collect the strong electromagnetic pulse radiation field intensity data in the environment. The strong electromagnetic pulse radiation field is generated by the strong electromagnetic pulse equipment. The collection environment refers to the relevant position range of the continuous pulses radiated by the strong electromagnetic pulse equipment. The intensity data includes the horizontal polarization radiation intensity E H Data and vertical polarization radiation intensity E V Data. Because the intensity of the strong electromagnetic pulse radiation field is a vector and is distributed in both the vertical and horizontal directions, it is necessary to collect values ​​in two directions for vector synthesis;

[0041] A test receiver, used for receiving the intensity data acquired by the electric field probe, calculating the total field radiation intensity E data according to the intensity data, and transmitting the total field radiation intensity E data to the terminal computer;

[0042] A test drone, used to carry the electric field probe to a designated test location in a collection environment;

[0043] A test drone remote controller, used to control the position and attitude of the test drone;

[0044] The terminal computer is used to receive the total field radiation intensity E data transmitted by the test receiver, and calculate the comprehensive radiation intensity value E through the acquired total field radiation intensity E data. A , and displaying the strong electromagnetic pulse radiation field test results, the terminal computer is connected to the test receiver via a network cable.

[0045] When executing a test task, the test drone remote control controls the test drone carrying the electric field probe to a designated test location in the collection environment. After the electric field probe obtains the intensity data of the designated test location, it sends the intensity data to the test receiver; the test receiver transmits the intensity data to the terminal computer for processing.

[0046] In this embodiment, the test preparation of the test system before executing the test task includes:

[0047] Setting the elevation angle of the radiation antenna of the strong electromagnetic pulse device to zero;

[0048] The test drone remote controller controls the test drone carrying the electric field probe to hover at an initial test position in sequence along the main axis direction of the strong electromagnetic pulse device radiation antenna.

[0049] In this embodiment, the number of electric field probes is at least 5, and each test drone carries one electric field probe. The electric field probe is made of lithium niobate crystal material. The more the number is, the faster the test is, but the cost of the test system is also higher. Therefore, based on the balance of test workload, efficiency and test system cost, it is preferred to set the number of electric field probes to 5.

[0050] In this embodiment, when there are five electric field probes, the initial test position is:

[0051] The hovering height is consistent with the center height of the strong electromagnetic pulse device radiation antenna.

[0052] Wherein, D is the diameter of the electromagnetic pulse device radiation antenna, unit: m; λ is the radiation wavelength of the electromagnetic pulse device, unit: m.

[0053] The initial test positions are set with the near-field distance and the far-field boundary distance as unit lengths, and the distances from the strong electromagnetic pulse device being tested are 0.06 unit lengths, 0.1 unit lengths, 0.14 unit lengths, 0.18 unit lengths, and 0.22 unit lengths, respectively. These are typical local extreme points in the area of ​​violent near-field fluctuations. It is necessary to start from these positions and step forward and backward to test quickly to quickly find the maximum electric field strength in the local area, so as to accurately draw the near-field electric field strength distribution envelope. The specific unit lengths are different for different radiation antennas and radiation wavelengths of strong electromagnetic pulse devices.

[0054] In this embodiment, the test receiver sets the number of receiving channels corresponding to the number of the electric field probes, and can independently receive the test data of all the electric field probes at the same time.

[0055] In this embodiment, the test drone is an electromagnetically reinforced multi-rotor drone.

[0056] In this embodiment, the total field radiation intensity E is calculated as follows:

[0057]

[0058] Where E is the total field radiation intensity, in kV / m; E V is the vertical polarization radiation intensity, unit is kV / m; E H It is the horizontal polarization radiation intensity, unit is kV / m.

[0059] In this embodiment, the comprehensive radiation intensity value E A , the calculation method is:

[0060]

[0061] Among them, EA is the comprehensive radiation intensity, in kV / m; n is the number of pulses continuously radiated by the strong electromagnetic pulse equipment, E i is the total field radiation intensity of the ith pulse, in kV / m, and the value of i ranges from 1 to n.

[0062] Strong electromagnetic pulse equipment has a service life. Since the radiation fluctuates each time, multiple pulses need to be tested. If the values ​​of multiple pulses are not much different, the maximum value of multiple tests is taken. Generally, n is 3, or more, but less than 3 will reduce accuracy.

[0063] When n=3, the comprehensive radiation intensity value E A The calculation formula is:

[0064]

[0065] Among them, E A is the comprehensive radiation intensity, unit is kV / m;

[0066] E i is the total field radiation intensity of the ith pulse, in kV / m, and the value of i ranges from 1 to 3.

[0067] In the implementation of the present invention, a test method for a distributed real-time test system for a strong electromagnetic pulse radiation field is also provided. The test drone is controlled to move by a test drone remote control, and a test receiver and an electric field probe are controlled by a terminal computer to perform a strong electromagnetic pulse radiation field test, and a strong electromagnetic pulse radiation field test result is obtained, such as Figure 3 As shown, the following steps are included:

[0068] S1100: Conduct preparation work for the strong electromagnetic pulse radiation field test, including setting the pitch angle of the strong electromagnetic pulse equipment radiation antenna to zero, and controlling the test drone to hover at the initial position in turn through the test drone remote control;

[0069] S1200: Perform a strong electromagnetic pulse radiation field test, including setting a strong electromagnetic pulse device to continuously radiate n pulses, and obtaining the horizontal polarization radiation intensity E of the strong electromagnetic pulse device at the position of the test drone through an electric field probe. H Data and vertical polarization radiation intensity E V The data are transmitted back to the test receiver respectively;

[0070] S1300: Processing and displaying the strong electromagnetic pulse radiation field test data, including: processing and displaying the strong electromagnetic pulse radiation field test data, including: the test receiver detects the horizontal polarization radiation intensity E at each position. H Data and vertical polarization radiation intensity E VThe total field radiation intensity E of each pulse at each position is calculated by the data. The test receiver uploads the total field radiation intensity E value of the current test position to the terminal computer. The terminal computer calculates each group of comprehensive radiation intensity values ​​E by obtaining the total field radiation intensity E data. A , and display and save in a two-dimensional rectangular coordinate system chart;

[0071] The format of the saved data is 5 rows and 2 columns. The first column is the distance value of the location of the 5 test drones relative to the electromagnetic pulse equipment radiation antenna, in meters. The second column is the comprehensive radiation intensity value measured at the corresponding distance of the 5 test drones, in kV / m. Figure 2 shown.

[0072] S1400: Control all the test drones through the test drone remote control to move forward 2m each time along the main axis direction of the strong electromagnetic pulse device radiation antenna, and repeat steps S1200 to S1300 until all the test drones move forward to the end position respectively, and the test is completed.

[0073] In this embodiment, when there are 5 test drones, the end positions of the test drones are:

[0074] The end point position is also set with the near-field distance and the far-field boundary distance as the unit length. The distances from the strong electromagnetic pulse device being measured are 0.02 unit lengths, 0.0.06 unit lengths, 0.1 unit lengths, 0.14 unit lengths, and 0.18 unit lengths, respectively. The specific unit lengths are different for different radiation antennas and radiation wavelengths of different strong electromagnetic pulse devices.

[0075] The above disclosure is only a specific embodiment of the present invention, but the present invention is not limited thereto, and any changes that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A distributed real-time testing system for strong electromagnetic pulse radiation field, characterized in that: include: The electric field probe is used to collect the strong electromagnetic pulse radiation field intensity data in the environment. The strong electromagnetic pulse radiation field is generated by the strong electromagnetic pulse equipment. The collection environment refers to the relevant position range of the continuous pulses radiated by the strong electromagnetic pulse equipment. The intensity data includes the horizontal polarization radiation intensity E H Data and vertical polarization radiation intensity E V data; A test receiver, used for receiving the intensity data acquired by the electric field probe, calculating the total field radiation intensity E data according to the intensity data, and transmitting the total field radiation intensity E data to the terminal computer; A test drone, used to carry the electric field probe to a designated test location in the collection environment; A test drone remote controller, used to control the position and attitude of the test drone; The terminal computer is used to receive the total field radiation intensity E data transmitted by the test receiver, and calculate the comprehensive radiation intensity value E by obtaining the total field radiation intensity E data. A , and displaying the test results of the strong electromagnetic pulse radiation field; When executing a test task, the test drone remote controller controls the test drone to carry the electric field probe to a designated test location in the acquisition environment. After the electric field probe obtains the intensity data of the designated test location, the intensity data is sent to the test receiver. The test receiver transmits the intensity data to a terminal computer for processing.

2. The strong electromagnetic pulse radiation field distributed real-time testing system according to claim 1, characterized in that: The test preparation of the test system before executing the test task includes: Setting the elevation angle of the radiation antenna of the strong electromagnetic pulse device to zero; The test drone remote controller controls the test drone carrying the electric field probe to hover at an initial test position in sequence along the main axis direction of the strong electromagnetic pulse device radiation antenna.

3. The strong electromagnetic pulse radiation field distributed real-time testing system as claimed in claim 2, characterized in that: The number of the electric field probes is at least 5, and each of the test drones is equipped with one electric field probe.

4. The strong electromagnetic pulse radiation field distributed real-time testing system as claimed in claim 3, characterized in that: When there are five electric field probes, the initial test position is: The hovering height is consistent with the center height of the strong electromagnetic pulse device radiation antenna. Wherein, D is the diameter of the electromagnetic pulse device radiation antenna, unit: m; λ is the radiation wavelength of the electromagnetic pulse device, unit: m.

5. The strong electromagnetic pulse radiation field distributed real-time testing system as claimed in claim 4, characterized in that: The test receiver sets the number of receiving channels corresponding to the number of the electric field probes, and can independently receive the test data of all the electric field probes at the same time.

6. The strong electromagnetic pulse radiation field distributed real-time testing system as claimed in claim 1, characterized in that: The test drone is an electromagnetically reinforced multi-rotor drone.

7. The distributed real-time testing method of strong electromagnetic pulse radiation field according to claim 1, characterized in that: The total field radiation intensity E is calculated as follows: Where E is the total field radiation intensity, in kV / m; E V is the vertical polarization radiation intensity, unit is kV / m; E H It is the horizontal polarization radiation intensity, unit is kV / m.

8. The distributed real-time testing method of strong electromagnetic pulse radiation field according to claim 1, characterized in that: The comprehensive radiation intensity value E A , the calculation method is: Among them, EA is the comprehensive radiation intensity, unit is kV / m; n is the number of pulses continuously radiated by the strong electromagnetic pulse equipment, Ei is the total field radiation intensity of the i-th pulse, unit is kV / m, and i ranges from 1 to n.

9. A testing method for a distributed real-time testing system of a strong electromagnetic pulse radiation field, characterized in that: The following steps are involved: S1100: Preparation for strong electromagnetic pulse radiation field test, Including, setting the pitch angle of the strong electromagnetic pulse device radiation antenna to zero, and controlling the test drone to hover at the initial position in sequence through the test drone remote control; S1200: Strong electromagnetic pulse radiation field test, including setting the strong electromagnetic pulse device to continuously radiate n pulses, and obtaining the horizontal polarization radiation intensity E of the strong electromagnetic pulse device at the position of the test drone through an electric field probe H Data and vertical polarization radiation intensity E V The data are transmitted back to the test receiver respectively; S1300: strong electromagnetic pulse radiation field test data processing and display, including, the test receiver according to the horizontal polarization radiation intensity E at each position H Data and vertical polarization radiation intensity E V The total field radiation intensity E of each pulse at each position is calculated by the data. The test receiver uploads the total field radiation intensity E value of the current test position to the terminal computer. The terminal computer calculates each group of comprehensive radiation intensity values ​​E by obtaining the total field radiation intensity E data. A , and display and save in a two-dimensional rectangular coordinate system chart; S1400: Control all the test drones through the test drone remote control to move forward 2m each time along the main axis direction of the strong electromagnetic pulse device radiation antenna, and repeat steps S1200 to S1300 until all the test drones move forward to the end position respectively, and the test is completed.

10. The distributed real-time testing method of strong electromagnetic pulse radiation field according to claim 9, characterized in that: When there are 5 test drones, the final positions of the test drones are:

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