Electromagnetic Compatibility Testing Method, System, Device and Storage Medium for Beidou Positioning Terminal

Abstract

The present invention discloses a method, system, device and storage medium for electromagnetic compatibility testing of a Beidou positioning terminal, which record the operating state of the Beidou positioning terminal to be tested and the single-point positioning information output under test environments with different levels of electromagnetic interference. The operating state of the Beidou positioning terminal to be tested and the single-point positioning information output are recorded after different levels of electromagnetic interference end. According to the characteristics of the electromagnetic interference, the operating state of the Beidou positioning terminal to be tested recorded during and after the electromagnetic interference process, as well as the integrity, effectiveness and positioning accuracy of the output single-point positioning information, and in accordance with the established determination criteria, the highest electromagnetic immunity level of the Beidou positioning terminal to be tested is determined through analysis and calculation evaluation, completing the electromagnetic compatibility testing of the Beidou positioning terminal. This method, system, device and storage medium can perform electromagnetic compatibility testing on the Beidou positioning terminal.

Description

Technical Field

[0001] The present invention belongs to the field of Beidou terminal testing, and relates to a method, system, device and storage medium for electromagnetic compatibility testing of a Beidou positioning terminal. Background Art

[0002] The Beidou satellite navigation system (hereinafter referred to as the "Beidou system") is a global satellite navigation system independently built and operated by China in view of national security and the needs of economic and social development. It is an important national time and space infrastructure that provides all-weather, all-time, high-precision positioning, navigation and timing services for global users. The Beidou system has been fully serving all walks of life and profoundly changing people's production and living styles. As a key infrastructure related to national security and the national economy and people's livelihood, the power system has the responsibility to promote the application of the Beidou system.

[0003] The power system has application environment characteristics such as strong electric fields, strong magnetic fields, radio interference, and high ground potential. There are problems such as surge breakdown and abnormal positioning data calculation in the Beidou positioning terminal. The current national Beidou standards and Beidou special standards do not require indicators such as the pulse magnetic field immunity and power frequency magnetic field immunity of the Beidou positioning terminal, and the requirements for indicators such as electrostatic discharge immunity and electrical fast transient pulse group immunity are relatively low, and there is no specific test method for electromagnetic compatibility indicators. The relevant content of electromagnetic compatibility in the current national standards only stipulates the definitions of each electromagnetic interference level and the interference test methods, and does not stipulate the construction of the electromagnetic compatibility test environment for the Beidou positioning terminal, the performance indicators of the Beidou terminal that should be evaluated during and after the electromagnetic interference process, and the requirements that the indicators should meet. To ensure the quality of Beidou terminals applied in the power industry, it is urgent to formulate a test method for the electromagnetic compatibility parameters of power Beidou positioning terminals, carry out experimental tests on the electromagnetic compatibility performance of Beidou positioning terminals, and provide a strong support for the quality of Beidou products applied in the power industry. Summary of the Invention

[0004] The purpose of the present invention is to overcome the above-mentioned shortcomings of the prior art, and provide a method, system, device and storage medium for electromagnetic compatibility testing of a Beidou positioning terminal, which can perform electromagnetic compatibility testing on the Beidou positioning terminal.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions:

[0006] On the one hand, the present invention provides a method for electromagnetic compatibility testing of a Beidou positioning terminal, including:

[0007] Recording the operating state and the output single-point positioning information of the Beidou positioning terminal to be tested in the test environment of different levels of electromagnetic interference, and recording the operating state and the output single-point positioning information of the Beidou positioning terminal to be tested after the end of different levels of electromagnetic interference;

[0008] According to the characteristics of electromagnetic interference and the operating status of the to-be-tested Beidou positioning terminal recorded during and after the electromagnetic interference process, as well as the single-point positioning information output, determine the highest electromagnetic immunity level of the to-be-tested Beidou positioning terminal, and complete the electromagnetic compatibility test of the Beidou positioning terminal.

[0009] A further improvement of the electromagnetic compatibility test method for the Beidou positioning terminal according to the present invention lies in:

[0010] Before recording the operating status of the to-be-tested Beidou positioning terminal and the single-point positioning information output in the test environment of different levels of electromagnetic interference, and at the same time recording the operating status of the to-be-tested Beidou positioning terminal and the single-point positioning information output after different levels of electromagnetic interference end, it further includes:

[0011] Simulate satellite signals and introduce the simulated satellite signals into the test environment of different levels of electromagnetic interference.

[0012] During the process of recording the operating status of the to-be-tested Beidou positioning terminal and the single-point positioning information output in the test environment of different levels of electromagnetic interference, and recording the operating status of the to-be-tested Beidou positioning terminal and the single-point positioning information output after different levels of electromagnetic interference end, the to-be-tested Beidou positioning terminal is in a static state relative to the known point.

[0013] The specific process of determining the highest electromagnetic immunity level of the to-be-tested Beidou positioning terminal according to the characteristics of the electromagnetic interference and the recorded operating status of the to-be-tested Beidou positioning terminal and the single-point positioning information output is as follows:

[0014] For different levels of electromagnetic interference, calculate the horizontal accuracy p h and vertical accuracy p v of the single-point positioning information output by the to-be-tested Beidou positioning terminal during the electromagnetic interference process; calculate the horizontal accuracy p' h and vertical accuracy p' v of the single-point positioning information output by the to-be-tested Beidou positioning terminal after the electromagnetic interference ends;

[0015] According to the characteristics of the electromagnetic interference, the operating status of the to-be-tested Beidou positioning terminal, the integrity and effectiveness of the single-point positioning information output, and the calculated horizontal accuracy p h 、vertical accuracy p v 、horizontal accuracy p' h and vertical accuracy p' v , determine whether the to-be-tested Beidou positioning terminal passes the electromagnetic compatibility test at the current level to determine the highest electromagnetic immunity level of the to-be-tested Beidou positioning terminal.

[0016] According to the characteristics of electromagnetic interference, the operating state of the Beidou positioning terminal to be tested, the integrity and validity of the single-point positioning information output, and the calculated horizontal accuracy p h , vertical accuracy p v , horizontal accuracy p′ h and vertical accuracy p′ v , the specific process for determining whether the Beidou positioning terminal to be tested passes the current-level electromagnetic compatibility test is as follows:

[0017] When the electromagnetic interference is electrostatic discharge, electrical fast transient pulse group or surge interference, during the electromagnetic interference process, the Beidou positioning terminal to be tested does not get damaged; after the electromagnetic interference ends, the Beidou positioning terminal to be tested automatically resumes its normal operating state, the single-point positioning information output by the Beidou positioning terminal to be tested does not appear scrambled, interrupted or lost, and the single-point positioning information output by the Beidou positioning terminal to be tested is all marked as successfully resolved for positioning. At the same time, p′ h ≤5m, p′ v ≤7.5m, then the Beidou positioning terminal to be tested passes the electromagnetic compatibility test; otherwise, the Beidou positioning terminal to be tested fails the electromagnetic compatibility test;

[0018] When the electromagnetic interference is the radiation interference of pulsed magnetic field, power frequency magnetic field or radio frequency electromagnetic field, during and after the electromagnetic interference process, the Beidou positioning terminal to be tested always maintains that the single-point positioning information output does not appear scrambled, interrupted or lost, and the single-point positioning information output by the Beidou positioning terminal to be tested is all marked as successfully resolved for positioning. At the same time, p h ≤5m, p v ≤7.5m, p′ h ≤5m, p′ v ≤7.5m, then the Beidou positioning terminal to be tested passes the electromagnetic compatibility test; otherwise, the Beidou positioning terminal to be tested fails the electromagnetic compatibility test.

[0019] In the second aspect of the present invention, the present invention provides a Beidou positioning terminal electromagnetic compatibility test system, including:

[0020] An electromagnetic interference source for providing a test environment with different levels of electromagnetic interference:

[0021] A recording module for recording the operating state of the Beidou positioning terminal to be tested and the single-point positioning information output in the test environment with different levels of electromagnetic interference, and at the same time recording the operating state of the Beidou positioning terminal to be tested and the single-point positioning information output after different levels of electromagnetic interference end;

[0022] An evaluation module for determining the highest electromagnetic immunity level of the Beidou positioning terminal to be tested according to the characteristics of electromagnetic interference, the operating state of the Beidou positioning terminal to be tested recorded during and after the electromagnetic interference process, and the single-point positioning information output, and completing the electromagnetic compatibility test of the Beidou positioning terminal.

[0023] Among them, electromagnetic isolation is carried out between the electromagnetic interference source and the recording module and the evaluation module.

[0024] It further includes:

[0025] A satellite signal simulator, which is used to simulate satellite signals and introduce the simulated satellite signals into a test environment with different levels of electromagnetic interference.

[0026] A transmitting antenna is arranged on the satellite signal simulator for introducing the simulated satellite signals into a test environment with different levels of electromagnetic interference.

[0027] In a third aspect of the present invention, there is provided a computer device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. The processor, when executing the computer program, implements the steps of the electromagnetic compatibility test method for the Beidou positioning terminal.

[0028] In a fourth aspect of the present invention, there is provided a computer-readable storage medium storing a computer program, and when the computer program is executed by a processor, the steps of the electromagnetic compatibility test method for the Beidou positioning terminal are implemented.

[0029] The present invention has the following beneficial effects:

[0030] When the electromagnetic compatibility test method, system, device and storage medium for the Beidou positioning terminal of the present invention are specifically operated, according to the characteristics of electromagnetic interference and the operating state of the Beidou positioning terminal to be tested and the single-point positioning information output during and after the electromagnetic interference process recorded, the highest electromagnetic immunity level of the Beidou positioning terminal to be tested is determined, and the electromagnetic compatibility test of the Beidou positioning terminal is completed to accurately determine the immunity of the Beidou positioning terminal to be tested. It should be noted that the present invention fills the blank in the field of Beidou positioning terminal testing, detects the adaptability of the Beidou positioning terminal in special electromagnetic environments such as the power industry, provides a powerful tool for the quality of Beidou products, and improves the quality of industrial applications of the Beidou positioning terminal; at the same time, it can be used to verify the electromagnetic compatibility parameters of the Beidou positioning terminal, provide a basis for the formulation of relevant standards, and provide strong support for the design, research and development, production, network access selection and engineering application of Beidou positioning terminal products. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a flowchart of the present invention;

[0032] Figure 2 is a system diagram of the present invention;

[0033] Figure 3 is a system diagram in Embodiment 3;

[0034] Figure 4 It is the system diagram in Embodiment 4.

[0035] Among them, 1 is a satellite signal simulator, 2 is a PC, 3 is the Beidou positioning terminal to be tested, 4 is an electromagnetic interference source, and 5 is a transmitting antenna. Specific implementation manner

[0036] In order to enable those skilled in the art of the present technology to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments, and are not intended to limit the scope of the present invention disclosure. In addition, in the following description, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts disclosed in the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present invention.

[0037] The structural schematic diagrams according to the disclosed embodiments of the present invention are shown in the drawings. These figures are not drawn to scale, and for the purpose of clear expression, some details are enlarged and some details may be omitted. The shapes of various regions and layers shown in the figures, as well as their relative sizes and positional relationships, are only exemplary. In practice, there may be deviations due to manufacturing tolerances or technical limitations, and those skilled in the art can design regions / layers with different shapes, sizes, and relative positions according to actual needs.

[0038] Embodiment 1

[0039] Refer to Figure 1 , the electromagnetic compatibility test method for the Beidou positioning terminal according to the present invention includes the following steps:

[0040] 1) Simulate satellite signals and introduce the simulated satellite signals into the test environment with different levels of electromagnetic interference;

[0041] 2) Record the operating status of the Beidou positioning terminal 3 to be tested and the single-point positioning information output in the test environment with different levels of electromagnetic interference, and record the operating status of the Beidou positioning terminal 3 to be tested and the single-point positioning information output after different levels of electromagnetic interference end;

[0042] It should be noted that during the test process, the Beidou positioning terminal 3 to be tested is stationary at a known coordinate point; and according to the electromagnetic compatibility index corresponding to the current test, in accordance with the relevant regulations of the current "GB / T 17626 Electromagnetic Compatibility Testing and Measurement Techniques" standard, starting from level 1, the interference level is increased step by step, and the corresponding electromagnetic interference is applied to the Beidou positioning terminal 3 to be tested.

[0043] 3) Determine the highest electromagnetic immunity level of the to-be-tested Beidou positioning terminal 3 according to the characteristics of electromagnetic interference and the operating status of the to-be-tested Beidou positioning terminal 3 recorded during and after the electromagnetic interference process and the single-point positioning information output, and complete the electromagnetic compatibility test of the Beidou positioning terminal.

[0044] The specific operation of step 3) is as follows:

[0045] 31) For different levels of electromagnetic interference, record the operating status of the to-be-tested Beidou positioning terminal 3 and the output single-point positioning information during and after the electromagnetic interference process. Calculate the horizontal accuracy p h and vertical accuracy p v of the single-point positioning information output by the to-be-tested Beidou positioning terminal 3 during the electromagnetic interference process; calculate the horizontal accuracy p' h and vertical accuracy p' v of the single-point positioning information output by the to-be-tested Beidou positioning terminal 3 after the electromagnetic interference ends;

[0046]

[0047]

[0048] where n is the number of output positioning result data; x i , y i and z i are the respective components of the i-th positioning information in the geocentric rectangular coordinate system; x, y, and z are the respective components of the known point where the to-be-tested Beidou positioning terminal 3 is simulated in the geocentric rectangular coordinate system. Determine whether the to-be-tested Beidou positioning terminal 3 passes the current level of interference test according to the judgment criteria established in the test plan.

[0049] 32) According to the characteristics of electromagnetic interference, the operating status of the to-be-tested Beidou positioning terminal 3, the integrity and effectiveness of the single-point positioning information output by the to-be-tested Beidou positioning terminal 3, and the calculated horizontal accuracy p h , vertical accuracy p v , horizontal accuracy p' h and vertical accuracy p' v , judge whether the to-be-tested Beidou positioning terminal 3 passes the current level of electromagnetic compatibility test to determine the highest electromagnetic immunity level of the to-be-tested Beidou positioning terminal 3.

[0050] The specific operation of step 32) is as follows:

[0051] When the electromagnetic interference is electrostatic discharge, electrical fast transient burst or surge interference, during the electromagnetic interference process, the to-be-tested Beidou positioning terminal 3 does not get damaged; after the electromagnetic interference ends, the to-be-tested Beidou positioning terminal 3 automatically resumes its normal working state, and the single-point positioning information output by the to-be-tested Beidou positioning terminal 3 does not show any garbled codes, interruptions or losses, and all the single-point positioning information output by the to-be-tested Beidou positioning terminal 3 is marked as successfully resolved for positioning. At the same time, p′ h ≤5m, p′ v ≤7.5m, then the to-be-tested Beidou positioning terminal 3 passes the electromagnetic compatibility test; otherwise, the to-be-tested Beidou positioning terminal 3 fails the electromagnetic compatibility test;

[0052] When the electromagnetic interference is the radiation interference of pulsed magnetic field, power frequency magnetic field or radio frequency electromagnetic field, during and after the electromagnetic interference process, the to-be-tested Beidou positioning terminal 3 always keeps the single-point positioning information output without any garbled codes, interruptions or losses, and all the single-point positioning information output by the to-be-tested Beidou positioning terminal 3 is marked as successfully resolved for positioning. At the same time, p h ≤5m, p v ≤7.5m, p′ h ≤5m, p′ v ≤7.5m, then the to-be-tested Beidou positioning terminal 3 passes the electromagnetic compatibility test; otherwise, the to-be-tested Beidou positioning terminal 3 fails the electromagnetic compatibility test.

[0053] Embodiment 2

[0054] Reference Figure 2 , the Beidou positioning terminal electromagnetic compatibility test system described in the present invention includes:

[0055] A satellite signal simulator 1, which is used to simulate satellite signals and introduce the simulated satellite signals into the test environment with different levels of electromagnetic interference;

[0056] An electromagnetic interference source 4, which is used to provide a test environment with different levels of electromagnetic interference:

[0057] A recording module, which is used to record the operating state of the to-be-tested Beidou positioning terminal 3 and the single-point positioning information output under the test environment with different levels of electromagnetic interference, and at the same time record the operating state of the to-be-tested Beidou positioning terminal 3 and the single-point positioning information output after different levels of electromagnetic interference end;

[0058] An evaluation module, which is used to determine the highest electromagnetic immunity level of the to-be-tested Beidou positioning terminal 3 according to the characteristics of the electromagnetic interference, the operating state of the to-be-tested Beidou positioning terminal 3 recorded during and after the electromagnetic interference process, and the single-point positioning information output, and complete the electromagnetic compatibility test of the Beidou positioning terminal.

[0059] Among them, electromagnetic isolation is carried out between the electromagnetic interference source 4 and the satellite signal simulator 1, the recording module and the evaluation module.

[0060] It should be noted that a transmitting antenna 5 for introducing the simulated satellite signals into test environments with different levels of electromagnetic interference is provided on the satellite signal simulator 1. The output signal power level of the satellite signal simulator 1 is set to -125 dBm. Meanwhile, the to-be-tested Beidou positioning terminal 3 is connected to the PC terminal 2, where the PC terminal 2 consists of a recording module and an evaluation module.

[0061] The observation altitude cutoff angle of the to-be-tested Beidou positioning terminal 3 is set to 10°, ensuring that the number of effective satellites observable by the to-be-tested Beidou positioning terminal 3 is greater than 8, and the relevant data of visible satellites and positioning solution information are output to the PC terminal 2 at a frequency of 1 Hz.

[0062] Embodiment III

[0063] This embodiment is used for the electrostatic discharge immunity test. The topology diagram of the electrostatic discharge immunity test environment is as Figure 3 shown, and the specific process is as follows:

[0064] 1) Use the satellite signal simulator 1 to simulate satellite signals. Set the output signal power level of the satellite signal simulator 1 to -125 dBm, and simulate that the to-be-tested Beidou positioning terminal 3 is stationary at a certain known coordinate point. The simulated satellite signals are introduced into the test environment through the transmitting antenna 5.

[0065] 2) Connect the to-be-tested Beidou positioning terminal 3 to the PC terminal 2. Set the observation altitude cutoff angle of the to-be-tested Beidou positioning terminal 3 to 10°, ensuring that the number of effective satellites observable by the to-be-tested Beidou positioning terminal 3 is greater than 8, and the relevant data of visible satellites and positioning solution information are output to the PC terminal 2 at a frequency of 1 Hz.

[0066] 3) After the to-be-tested Beidou positioning terminal 3 normally outputs positioning information to the PC terminal 2, according to the relevant regulations of the current GB / T 17626.2 standard, the interference level is increased step by step from level 1 to level 4, and the shell, screen, and ports of the to-be-tested Beidou positioning terminal 3 are discharged.

[0067] 4) Observe the operating state of the to-be-tested Beidou positioning terminal 3 during and after the interference is applied. Record the single-point positioning data information output by the to-be-tested Beidou positioning terminal 3, and analyze the positioning data output during the interference process and at least 100 s after the interference is stopped. If there is no abnormal situation such as data scrambling, interruption, or loss, and each piece of data is marked as successfully resolved for positioning, then according to the calculated single-point positioning horizontal accuracy p h and vertical accuracy p v .

[0068] 5) During the interference period, the Beidou positioning terminal 3 to be tested does not get damaged (temporary interruption or loss of positioning data and other abnormalities are allowed). After the interference ends, the Beidou positioning terminal 3 to be tested resumes normal working state by itself, and the output positioning data has no abnormalities such as garbled codes, interruptions, or losses. Each piece of data is marked as successfully resolved for positioning, and p h ≤5m, p v ≤7.5m, then it is determined that the interference test at the current level passes; otherwise, it is determined as failed, so as to find out the highest anti-interference level of the Beidou positioning terminal 3 to be tested.

[0069] Example 4

[0070] This example is used for the power frequency magnetic field immunity test. Among them, the topological diagram of the power frequency magnetic field immunity test environment is as Figure 4 shown, and the specific process is as follows:

[0071] 1) Use the satellite signal simulator 1 to simulate satellite signals, set the output signal power level of the satellite signal simulator 1 to -125 dBm, the Beidou positioning terminal 3 to be tested is stationary at a certain known coordinate point, and introduce the simulated satellite signals into the test environment through the transmitting antenna 5.

[0072] 2) Connect the Beidou positioning terminal 3 to be tested with the PC 2, set the observation altitude cut-off angle of the Beidou positioning terminal 3 to be tested to 10°, ensure that the number of effective satellites observable by the Beidou positioning terminal 3 to be tested is greater than 8, and output the relevant data of visible satellites and positioning solution and other information to the PC 2 at a frequency of 1 Hz.

[0073] 3) Place the Beidou positioning terminal 3 to be tested into the power frequency magnetic field coil. After the Beidou positioning terminal 3 to be tested normally outputs positioning information to the PC 2, according to the relevant regulations of the GB / T 17626.8 standard, gradually increase the interference level from level 1 to level 5, and conduct the power frequency magnetic field interference test on the Beidou positioning terminal 3 to be tested.

[0074] 4) Observe the operating state of the Beidou positioning terminal 3 to be tested during the interference application process and after the interference stops, and record the single-point positioning data information output by the Beidou positioning terminal 3 to be tested. Analyze the positioning data output during the interference process and at least 100 s after the interference stops respectively. If the data has no abnormalities such as garbled codes, interruptions, or losses, and each piece of data is marked as successfully resolved for positioning, then calculate the single-point positioning horizontal accuracy p h and the vertical accuracy p v .

[0075] 5) During the interference period and after the interference ends, the Beidou positioning terminal 3 to be tested always maintains that the output positioning data has no abnormalities such as garbled codes, interruptions, or losses. Each piece of data is marked as successfully resolved for positioning, and p h ≤5m, p vIf it is ≤ 7.5m, it is determined that the current level of interference test passes; otherwise, it is determined as failed, so as to find out the highest anti-interference level of the Beidou positioning terminal 3 to be tested.

[0076] Embodiment Five

[0077] A computer device includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the steps of the electromagnetic compatibility test method for the Beidou positioning terminal. Among them, the memory may include internal memory, such as high-speed random access memory, and may also include non-volatile memory, such as at least one disk memory, etc.; the processor, network interface, and memory are interconnected through an internal bus, and this internal bus can be an Industry Standard Architecture bus, a Peripheral Component Interconnect standard bus, an Extended Industry Standard Architecture bus, etc. The bus can be divided into an address bus, a data bus, a control bus, etc. The memory is used to store programs. Specifically, the program may include program code, and the program code includes computer operation instructions. The memory may include internal memory and non-volatile memory, and provides instructions and data to the processor.

[0078] Embodiment Six

[0079] A computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, it implements the steps of the electromagnetic compatibility test method for the Beidou positioning terminal. Specifically, the computer-readable storage medium includes but is not limited to, for example, volatile memory and / or non-volatile memory. The volatile memory may include random access memory (RAM) and / or cache memory, etc. The non-volatile memory may include read-only memory (ROM), hard disk, flash memory, optical disc, magnetic disk, etc.

[0080] Those skilled in the art should understand that the embodiments of the present application can be provided as a method, a system, or a computer program product. Therefore, the present application can adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk memory, CD-ROM, optical memory, etc.) containing computer-usable program code.

[0081] This application is described with reference to the flowcharts and / or block diagrams of methods, apparatuses (systems), and computer program products according to embodiments of the present application. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, as well as the combination of flows and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to the processors of general-purpose computers, special-purpose computers, embedded processors, or other programmable data processing devices to generate a machine, such that the instructions executed by the processors of the computer or other programmable data processing devices generate means for implementing the functions specified in the Figure 1 one or more flows and / or blocks Figure 1 one or more blocks.

[0082] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to work in a specific manner, such that the instructions stored in the computer-readable memory generate a manufactured article including instruction means that implement the functions specified in the Figure 1 one or more flows and / or blocks Figure 1 one or more blocks.

[0083] These computer program instructions can also be loaded onto a computer or other programmable data processing device, such that a series of operation steps are executed on the computer or other programmable device to generate a computer-implemented process, and thus the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in the Figure 1 one or more flows and / or blocks Figure 1 one or more blocks.

[0084] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that it is still possible to modify the specific implementation manners of the present invention or make equivalent substitutions. Any modification or equivalent substitution that does not depart from the spirit and scope of the present invention shall be covered by the protection scope of the claims of the present invention.

Claims

1. A Beidou positioning terminal electromagnetic compatibility testing method, characterized in that, Including: Under test environments with different levels of electromagnetic interference, record the operating status of the Beidou positioning terminal (3) to be tested and the single-point positioning information output, and record the operating status of the Beidou positioning terminal (3) to be tested and the single-point positioning information output after different levels of electromagnetic interference end. According to the characteristics of the electromagnetic interference and the operating status of the Beidou positioning terminal (3) to be tested and the single-point positioning information recorded during and after the electromagnetic interference, determine the highest electromagnetic immunity level of the Beidou positioning terminal (3) to be tested, and complete the electromagnetic compatibility test of the Beidou positioning terminal. The specific process of determining the highest electromagnetic interference level of the Beidou positioning terminal (3) to be tested according to the characteristics of the electromagnetic interference and the operating status of the Beidou positioning terminal (3) to be tested and the single-point positioning information recorded is as follows: For different levels of electromagnetic interference, calculate the horizontal accuracy \(p\) of the single-point positioning information output by the Beidou positioning terminal (3) to be measured during the electromagnetic interference h and the vertical accuracy \(p\) v ; calculate the horizontal accuracy \(p'\) of the single-point positioning information output by the Beidou positioning terminal (3) to be measured after the electromagnetic interference ends h and the vertical accuracy \(p\) v '; According to the characteristics of electromagnetic interference, the operating state of the Beidou positioning terminal (3) to be measured, the integrity and effectiveness of the single-point positioning information output by the Beidou positioning terminal (3) to be measured, and the calculated horizontal accuracy p h , vertical accuracy p v , horizontal accuracy p h ′ and vertical accuracy p v ′, determine whether the Beidou positioning terminal (3) to be measured passes the current-level electromagnetic compatibility test to determine the highest electromagnetic immunity level of the Beidou positioning terminal (3) to be measured; According to the characteristics of electromagnetic interference, the operating state of the Beidou positioning terminal (3) to be measured, the integrity and validity of the single-point positioning information output by the Beidou positioning terminal (3) to be measured, and the calculated horizontal accuracy p h , vertical accuracy p v , horizontal accuracy p h ′ and vertical accuracy p v ′, the specific process of determining whether the Beidou positioning terminal (3) to be measured passes the current-level electromagnetic compatibility test is as follows: When the electromagnetic interference is electrostatic discharge, electrical fast transient burst or surge interference, during the electromagnetic interference process, the Beidou positioning terminal (3) under test is not damaged; after the electromagnetic interference ends, the Beidou positioning terminal (3) under test automatically resumes the normal working state, and the single-point positioning information output by the Beidou positioning terminal (3) under test does not appear garbled, interrupted or lost, and the single-point positioning information output by the Beidou positioning terminal (3) under test is all marked as successfully resolved positioning, and at the same time p h ′≤5m, p v ′≤7.5m, then the Beidou positioning terminal (3) under test passes the electromagnetic compatibility test; otherwise, the Beidou positioning terminal (3) under test fails the electromagnetic compatibility test; When the electromagnetic interference is the radiation interference of pulsed magnetic field, power frequency magnetic field or radio frequency electromagnetic field, during and after the electromagnetic interference process, the single-point positioning information output by the to-be-tested Beidou positioning terminal (3) always remains free of garbled characters, interruption and loss, and the single-point positioning information output by the to-be-tested Beidou positioning terminal (3) is all marked as successfully resolved for positioning. At the same time, p h ≤5m, p v ≤7.5m, p h ′≤5m, p v ′≤7.5m, then the to-be-tested Beidou positioning terminal (3) passes the electromagnetic compatibility test; otherwise, the to-be-tested Beidou positioning terminal (3) fails the electromagnetic compatibility test.

2. The Beidou positioning terminal electromagnetic compatibility testing method according to claim 1, characterized in that, Before the above-mentioned recording of the operating status of the Beidou positioning terminal (3) to be tested and the single-point positioning information output under test environments with different levels of electromagnetic interference, and simultaneously recording the operating status of the Beidou positioning terminal (3) to be tested and the single-point positioning information output after different levels of electromagnetic interference end, further includes: Simulate satellite signals and introduce the simulated satellite signals into test environments with different levels of electromagnetic interference.

3. The Beidou positioning terminal electromagnetic compatibility testing method according to claim 1, characterized in that, During the process of recording the operating status of the Beidou positioning terminal (3) to be tested and the single-point positioning information output under test environments with different levels of electromagnetic interference, and recording the operating status of the Beidou positioning terminal (3) to be tested and the single-point positioning information output after different levels of electromagnetic interference end, simulate that the Beidou positioning terminal (3) to be tested is stationary at a known coordinate point.

4. A Beidou positioning terminal electromagnetic compatibility testing system, characterized in that, Including: An electromagnetic interference source (4) for providing test environments with different levels of electromagnetic interference; A recording module for recording the operating status of the Beidou positioning terminal (3) to be tested and the single-point positioning information output under test environments with different levels of electromagnetic interference, and simultaneously recording the operating status of the Beidou positioning terminal (3) to be tested and the single-point positioning information output after different levels of electromagnetic interference end; An evaluation module for determining the highest electromagnetic immunity level of the Beidou positioning terminal (3) to be tested according to the characteristics of the electromagnetic interference and the operating status of the Beidou positioning terminal (3) to be tested and the single-point positioning information recorded during and after the electromagnetic interference, and completing the electromagnetic compatibility test of the Beidou positioning terminal; Among them, electromagnetic isolation is carried out between the electromagnetic interference source (4) and the recording module and the evaluation module; The specific process of determining the highest electromagnetic interference level of the Beidou positioning terminal (3) to be tested according to the characteristics of the electromagnetic interference and the operating status of the Beidou positioning terminal (3) to be tested and the single-point positioning information recorded is as follows: For different levels of electromagnetic interference, calculate the horizontal accuracy p h and vertical accuracy p v of the single-point positioning information output by the Beidou positioning terminal (3) to be measured during the electromagnetic interference calculation; calculate the horizontal accuracy p h ' and vertical accuracy p v ' of the single-point positioning information output by the Beidou positioning terminal (3) to be measured after the electromagnetic interference calculation ends; According to the characteristics of electromagnetic interference, the operating state of the Beidou positioning terminal (3) to be measured, the integrity and effectiveness of the single-point positioning information output by the Beidou positioning terminal (3) to be measured, and the calculated horizontal accuracy p h , vertical accuracy p v , horizontal accuracy p h ′ and vertical accuracy p v ′, determine whether the Beidou positioning terminal (3) to be measured passes the current-level electromagnetic compatibility test to determine the highest electromagnetic immunity level of the Beidou positioning terminal (3) to be measured; According to the characteristics of electromagnetic interference, the operating state of the Beidou positioning terminal (3) to be measured, the integrity and effectiveness of the single-point positioning information output by the Beidou positioning terminal (3) to be measured, and the calculated horizontal accuracy p h , vertical accuracy p v , horizontal accuracy p h ′ and vertical accuracy p v ′, the specific process for determining whether the Beidou positioning terminal (3) to be measured passes the current-level electromagnetic compatibility test is as follows: When the electromagnetic interference is electrostatic discharge, electrical fast transient burst or surge interference, during the electromagnetic interference process, the Beidou positioning terminal to be tested (3) does not get damaged; after the electromagnetic interference ends, the Beidou positioning terminal to be tested (3) automatically resumes the normal working state, the single-point positioning information output by the Beidou positioning terminal to be tested (3) does not appear scrambled, interrupted or lost, and the single-point positioning information output by the Beidou positioning terminal to be tested (3) is all marked as successfully resolved for positioning. At the same time, p h ′ ≤ 5m, p v ′ ≤ 7.5m, then the Beidou positioning terminal to be tested (3) passes the electromagnetic compatibility test; otherwise, the Beidou positioning terminal to be tested (3) fails the electromagnetic compatibility test. When the electromagnetic interference is the radiation interference of pulsed magnetic field, power frequency magnetic field or radio frequency electromagnetic field, during and after the electromagnetic interference process, the single-point positioning information output by the to-be-tested Beidou positioning terminal (3) always remains free of garbled characters, interruption and loss, and the single-point positioning information output by the to-be-tested Beidou positioning terminal (3) is all marked as successfully resolved positioning. At the same time, p h ≤5m, p v ≤7.5m, p' h ≤5m, p v '≤7.5m, then the to-be-tested Beidou positioning terminal (3) passes the electromagnetic compatibility test; otherwise, the to-be-tested Beidou positioning terminal (3) fails the electromagnetic compatibility test.

5. The Beidou positioning terminal electromagnetic compatibility testing system according to claim 4, characterized in that, Further including: A satellite signal simulator (1) for simulating satellite signals and introducing the simulated satellite signals into test environments with different levels of electromagnetic interference.

6. The Beidou positioning terminal electromagnetic compatibility testing system according to claim 5, characterized in that, The satellite signal simulator (1) is provided with a transmitting antenna (5) for introducing the simulated satellite signals into test environments with different levels of electromagnetic interference.

7. A computer device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the steps of the electromagnetic compatibility test method of the Beidou positioning terminal according to any one of claims 1 to 3.

8. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by a processor, it implements the steps of the Beidou positioning terminal electromagnetic compatibility testing method according to any one of claims 1 to 3.

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