Anti-electromagnetic interference testing method and system for intelligent charging socket

Abstract

The present invention discloses an anti-electromagnetic interference test method and system for a smart charging socket, which relates to the technical field of electrical equipment, including: ensuring that the smart charging socket is in a normal working state, placing it in an electromagnetic shielding room for testing; evaluating the electrostatic discharge immunity of the smart charging socket by simulating the electrostatic discharge generated when a human body or other objects contacts the smart charging socket; evaluating the radio frequency electromagnetic field radiation immunity of the smart charging socket by simulating the radio frequency disturbance signal in space; evaluating the electrical fast transient pulse group immunity of the smart charging socket by simulating the transient pulse generated when the inductive load is switched or the high-voltage switch is switched; evaluating the surge immunity of the smart charging socket by simulating the fault in the power grid and the surge voltage generated by lightning. The anti-electromagnetic interference capability of the smart charging socket can be comprehensively evaluated by setting a test preparation module and a scoring calculation module.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical equipment, and in particular to an anti-electromagnetic interference testing method and system for a smart charging socket. Background Art

[0002] In order to ensure the safe and stable operation of smart charging sockets in the power system, it is necessary to meet the requirements of electromagnetic compatibility standards and pass a variety of electromagnetic immunity tests. Among them, transient electromagnetic interference such as electrical fast transient pulse group disturbance and lightning waves caused by switching operations are the most serious interference to smart charging sockets. Therefore, smart charging sockets must pass electrostatic discharge immunity tests, radio frequency electromagnetic field radiation immunity tests, electrical fast transient pulse group immunity tests, and surge immunity tests before being put into operation.

[0003] In practical applications, the main problems currently faced are how to comprehensively evaluate the anti-electromagnetic interference capability of smart charging sockets, how to comprehensively evaluate the anti-interference score of smart charging sockets through different anti-interference test results, and how to select appropriate test items and parameters according to specific needs and standards to ensure the stability and reliability of the equipment. Summary of the invention

[0004] In order to solve the above technical problems, a method and system for testing the anti-electromagnetic interference of a smart charging socket are provided. This technical solution solves the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the present invention is:

[0006] An anti-electromagnetic interference test method for a smart charging socket, comprising:

[0007] Make sure the smart charging socket is in normal working condition and place it in an electromagnetic shielding room for testing;

[0008] The electrostatic discharge immunity of the smart charging strip is evaluated by simulating the electrostatic discharge generated when the human body or other objects touch the smart charging strip;

[0009] Evaluate the RF electromagnetic field radiation immunity of the smart charging socket by simulating RF interference signals in space, where the RF interference signals include electromagnetic fields generated by mobile phones and radio transmitters;

[0010] By simulating transient pulses generated when inductive loads are switched or high-voltage switches are switched, the immunity of the smart charging strip to electrical fast transient pulse groups is evaluated;

[0011] Evaluate the surge immunity of the smart charging strip by simulating faults in the power grid and surge voltages generated by lightning strikes;

[0012] Based on the electrostatic discharge immunity, radio frequency electromagnetic field radiation immunity, electrical fast transient pulse group immunity and surge immunity of the smart charging socket, the comprehensive score of the electromagnetic interference test of the smart charging socket is calculated using a comprehensive scoring formula.

[0013] Preferably, the step of evaluating the electrostatic discharge immunity of the smart charging socket by simulating the electrostatic discharge generated when a human body or other object contacts the smart charging socket specifically includes:

[0014] Mark the touch screen and button areas of the smart charging strip as touch-sensitive areas;

[0015] Setting operating parameters of the electrostatic discharge generator, the operating parameters including discharge voltage, discharge polarity and discharge number;

[0016] Place the metal probe at the contact sensitive part to ensure good discharge coupling;

[0017] Based on the set operating parameters of the electrostatic discharge generator, electrostatic discharge is performed on the contact sensitive parts;

[0018] Determine whether the display screen of the smart charging socket is distorted. If so, record the display screen distorted recovery time and use the scoring formula to calculate the score of the contact sensitive part. If not, record the score of the contact sensitive part as 100%;

[0019] Determine whether data transmission is interrupted during the test. If so, record the data transmission interruption recovery time and use the scoring formula to calculate the data transmission stability score of the smart charging socket. If not, record the data transmission stability score of the smart charging socket as 100%;

[0020] Calculate the average score of the data transmission stability score and the scores of each contact sensitive part, and output it as the electrostatic discharge immunity of the smart charging socket;

[0021] The scoring formula is: ,

[0022] In the formula, To rate the test, For recovery time.

[0023] Preferably, the evaluating the radio frequency electromagnetic field radiation immunity of the smart charging socket by simulating the radio frequency interference signal in the space specifically includes:

[0024] Preset the power of the signal generator and the test time;

[0025] Turn on the signal generator to generate a radio frequency signal;

[0026] Turn on the power amplifier to amplify the RF signal to a preset field strength level;

[0027] The radio frequency electromagnetic field is radiated to the smart charging socket through the antenna to simulate the radio frequency interference signal in the space;

[0028] Record the ground distance between the antenna and the smart charging socket and the height of the antenna;

[0029] Observe and record the current changes of the smart charging socket during the test time;

[0030] Use the radio frequency electromagnetic field radiation immunity formula to calculate the radio frequency electromagnetic field radiation immunity of the smart charging socket;

[0031] The radio frequency electromagnetic field radiation immunity formula is: ,

[0032] In the formula, The radio frequency electromagnetic field radiation immunity of the smart charging socket. , are the ground distance between the antenna and the smart charging socket and the height of the antenna, is the variance of the current data of the smart charging strip during the test time, is the power amplifier gain, is the power of the signal generator, It's time for testing.

[0033] Preferably, the evaluating the electrical fast transient pulse group immunity of the smart charging socket by simulating the transient pulse generated when the inductive load is switched or the high-voltage switch is switched specifically includes:

[0034] Preset transient pulse related parameters, wherein the transient pulse related parameters include repetition frequency, pulse group period and pulse duration;

[0035] Install a coupling network to transmit the transient pulse signal of the pulse generator to the smart charging socket;

[0036] Based on the preset transient pulse related parameters, the pulse generator is started to apply a transient pulse signal to the smart charging socket;

[0037] Observe and record the operating current of the smart charging socket before, during and after the transient pulse signal is applied;

[0038] The electrical fast transient pulse group immunity formula is used to calculate the electrical fast transient pulse group immunity of the smart charging socket;

[0039] The electrical fast transient pulse group immunity formula is: ,

[0040] In the formula, The electrical fast transient pulse group immunity of the smart charging socket. is the pulse repetition frequency, is the pulse duration, , , The operating currents before, during and after the transient pulse signal is applied to the smart charging socket are respectively: is the pulse group period.

[0041] Preferably, the evaluating the surge immunity of the smart charging socket by simulating the surge voltage generated by the fault in the power grid and the lightning strike specifically includes:

[0042] Preset the waveform of the surge generator;

[0043] Connect the surge generator to the input port of the smart charging socket through a coupling network;

[0044] Based on the waveform of the preset surge generator, the surge generator is started to apply a surge voltage of positive and negative polarity to the smart charging socket;

[0045] After the test, conduct a comprehensive inspection of the smart charging socket;

[0046] Determine whether the structure of the smart charging socket is intact. If so, the surge immunity of the output smart charging socket is 100%. If not, the surge immunity of the output smart charging socket is 0%.

[0047] Preferably, the electrostatic discharge immunity, radio frequency electromagnetic field radiation immunity, electrical fast transient pulse group immunity and surge immunity of the smart charging socket are used to calculate the comprehensive score of the electromagnetic interference test of the smart charging socket using a comprehensive scoring formula, which specifically includes:

[0048] Obtain the electrostatic discharge immunity, radio frequency electromagnetic field radiation immunity, electrical fast transient pulse group immunity and surge immunity of the smart charging socket;

[0049] Preset the scoring weights for each immunity level;

[0050] The comprehensive scoring formula is used to calculate the comprehensive score of the anti-electromagnetic interference test of the smart charging socket;

[0051] Determine whether the comprehensive score of the anti-electromagnetic interference test of the smart charging socket is greater than a preset threshold. If so, output that the quality of the smart charging socket is qualified; if not, output that the quality of the smart charging socket is unqualified;

[0052] The comprehensive scoring formula is: ,

[0053] In the formula, Comprehensive score for the anti-electromagnetic interference test of the smart charging socket. , , , They are the electrostatic discharge immunity, radio frequency electromagnetic field radiation immunity, electrical fast transient pulse group immunity and surge immunity of the smart charging socket. , , , are the corresponding scoring weights for each immunity level.

[0054] Furthermore, an anti-electromagnetic interference test system for a smart charging socket is proposed, which is used to implement the anti-electromagnetic interference test method for a smart charging socket as described above, including:

[0055] A test preparation module, which is used to ensure that the smart charging socket is in normal working condition and place it in an electromagnetic shielding room for testing;

[0056] A scoring calculation module is used to evaluate the electrostatic discharge immunity of the smart charging socket by simulating the electrostatic discharge generated when the human body or other objects contact the smart charging socket, evaluate the radio frequency electromagnetic field radiation immunity of the smart charging socket by simulating the radio frequency interference signal in the space, evaluate the electrical fast transient pulse group immunity of the smart charging socket by simulating the transient pulses generated when the inductive load is switched or the high-voltage switch is switched, evaluate the surge immunity of the smart charging socket by simulating the surge voltage generated by faults in the power grid and lightning strikes, and calculate the comprehensive score of the anti-electromagnetic interference test of the smart charging socket using a comprehensive scoring formula based on the electrostatic discharge immunity, radio frequency electromagnetic field radiation immunity, electrical fast transient pulse group immunity and surge immunity of the smart charging socket.

[0057] Optionally, the score calculation module specifically includes:

[0058] A first anti-interference calculation unit, the first anti-interference calculation unit is used to evaluate the electrostatic discharge immunity of the smart charging socket by simulating the electrostatic discharge generated when a human body or other objects contacts the smart charging socket;

[0059] A second immunity calculation unit, the second immunity calculation unit is used to evaluate the radio frequency electromagnetic field radiation immunity of the smart charging socket by simulating the radio frequency disturbance signal in the space;

[0060] A third anti-interference calculation unit, the third anti-interference calculation unit is used to evaluate the electrical fast transient pulse group immunity of the smart charging socket by simulating transient pulses generated when an inductive load is switched or a high-voltage switch is switched;

[0061] A fourth anti-interference calculation unit, the fourth anti-interference calculation unit is used to evaluate the surge immunity of the smart charging socket by simulating a fault in the power grid and a surge voltage generated by a lightning strike;

[0062] A comprehensive score calculation unit is used to calculate the comprehensive score of the electromagnetic interference test of the smart charging socket based on the electrostatic discharge immunity, radio frequency electromagnetic field radiation immunity, electrical fast transient pulse group immunity and surge immunity of the smart charging socket using a comprehensive score formula.

[0063] Compared with the prior art, the present invention has the following beneficial effects:

[0064] Through the above test methods, the anti-electromagnetic interference ability of the smart charging strip can be comprehensively evaluated. In practical applications, appropriate test items and parameters can be selected according to specific needs and standards to ensure the stability and reliability of the equipment. At the same time, problems found in the test can be rectified and optimized in a timely manner to improve the overall performance of the equipment, ensure that electronic equipment such as smart charging strips can work stably in complex electromagnetic environments, and provide users with a more reliable and safe product experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] Figure 1 This is a flow chart of the anti-electromagnetic interference testing method for the smart charging socket of the present invention;

[0066] Figure 2 is a flow chart of the electrostatic discharge immunity evaluation method of the present invention;

[0067] Figure 3 It is a flow chart of the radio frequency electromagnetic field radiation immunity evaluation method of the present invention;

[0068] Figure 4 It is a flow chart of the electrical fast transient pulse group immunity evaluation method of the present invention;

[0069] Figure 5 is a flow chart of the surge immunity evaluation method of the present invention;

[0070] Figure 6 This is a flow chart of the method for calculating the comprehensive score of the anti-electromagnetic interference test of the present invention. DETAILED DESCRIPTION

[0071] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0072] Reference Figure 1 As shown, a method for testing the anti-electromagnetic interference of a smart charging socket includes:

[0073] Make sure the smart charging socket is in normal working condition and place it in an electromagnetic shielding room for testing;

[0074] The electrostatic discharge immunity of the smart charging strip is evaluated by simulating the electrostatic discharge generated when the human body or other objects touch the smart charging strip;

[0075] Evaluate the RF electromagnetic field radiation immunity of the smart charging socket by simulating RF interference signals in space, where the RF interference signals include electromagnetic fields generated by mobile phones and radio transmitters;

[0076] By simulating transient pulses generated when inductive loads are switched or high-voltage switches are switched, the immunity of the smart charging strip to electrical fast transient pulse groups is evaluated;

[0077] Evaluate the surge immunity of the smart charging strip by simulating faults in the power grid and surge voltages generated by lightning strikes;

[0078] Based on the electrostatic discharge immunity, radio frequency electromagnetic field radiation immunity, electrical fast transient pulse group immunity and surge immunity of the smart charging socket, the comprehensive score of the electromagnetic interference test of the smart charging socket is calculated using a comprehensive scoring formula.

[0079] Reference Figure 2 As shown in the figure, by simulating the electrostatic discharge generated when the human body or other objects touch the smart charging socket, the electrostatic discharge immunity of the smart charging socket is evaluated, including:

[0080] Mark the touch screen and button areas of the smart charging strip as touch-sensitive areas;

[0081] Setting operating parameters of the electrostatic discharge generator, the operating parameters including discharge voltage, discharge polarity and discharge number;

[0082] Place the metal probe at the contact sensitive part to ensure good discharge coupling;

[0083] Based on the set operating parameters of the electrostatic discharge generator, electrostatic discharge is performed on the contact sensitive parts;

[0084] Determine whether the display screen of the smart charging socket is distorted. If so, record the display screen distorted recovery time and use the scoring formula to calculate the score of the contact sensitive part. If not, record the score of the contact sensitive part as 100%;

[0085] Determine whether data transmission is interrupted during the test. If so, record the data transmission interruption recovery time and use the scoring formula to calculate the data transmission stability score of the smart charging socket. If not, record the data transmission stability score of the smart charging socket as 100%;

[0086] Calculate the average score of the data transmission stability score and the scores of each contact sensitive part, and output it as the electrostatic discharge immunity of the smart charging socket;

[0087] The scoring formula is: ,

[0088] In the formula, To rate the test, For recovery time.

[0089] Electrostatic discharge is a natural phenomenon. When people walk on synthetic fiber carpets, the friction between the shoes and the carpet can accumulate more than 6 coulombs of charge on the human body after just a few steps. When studying the electrostatic discharge generated by different human bodies, there will be many different current pulses. Electrostatic discharge often occurs when the human body contacts semiconductor devices, which may cause the breakdown of several layers of semiconductor materials and cause irreparable damage. Electrostatic discharge and the subsequent changes in the electromagnetic field may endanger the normal operation of electronic equipment.

[0090] Reference Figure 3 As shown in the figure, by simulating the RF interference signal in the space, the RF electromagnetic field radiation immunity of the smart charging socket is evaluated, including:

[0091] Preset the power of the signal generator and the test time;

[0092] Turn on the signal generator to generate a radio frequency signal;

[0093] Turn on the power amplifier to amplify the RF signal to a preset field strength level;

[0094] The radio frequency electromagnetic field is radiated to the smart charging socket through the antenna to simulate the radio frequency interference signal in the space;

[0095] Record the ground distance between the antenna and the smart charging socket and the height of the antenna;

[0096] Observe and record the current changes of the smart charging socket during the test time;

[0097] Use the radio frequency electromagnetic field radiation immunity formula to calculate the radio frequency electromagnetic field radiation immunity of the smart charging socket;

[0098] The radio frequency electromagnetic field radiation immunity formula is: ,

[0099] In the formula, The radio frequency electromagnetic field radiation immunity of the smart charging socket. , are the ground distance between the antenna and the smart charging socket and the height of the antenna, is the variance of the current data of the smart charging strip during the test time, is the power amplifier gain, is the power of the signal generator, It's time for testing.

[0100] The interference of radio frequency radiation electromagnetic field on equipment is often caused by the use of electromagnetic radiation sources such as mobile phones, radio stations, TV transmitters, mobile radio engines, etc. by equipment operators, maintenance personnel and safety inspectors. The parasitic radiation generated by automobile ignition devices, welding machines, thyristor rectifiers and fluorescent lamps at work will also produce radio frequency radiation interference. The purpose of the test is to establish a common standard to evaluate the ability of electrical and electronic products or systems to resist radio frequency radiation electromagnetic field interference. Mobile phones, which are indispensable in people's lives, have been considered as the focus of radiation sources by the standards. On the one hand, this is because the current use of mobile phones is very common. On the other hand, the distance between the user of the mobile phone and the device is relatively close, so the radiation interference generated by the mobile phone to the equipment is very strong in the local area.

[0101] Reference Figure 4 As shown in the figure, by simulating the transient pulses generated when the inductive load is switched or the high-voltage switch is switched, the electrical fast transient pulse group immunity of the smart charging socket is evaluated, including:

[0102] Preset transient pulse related parameters, wherein the transient pulse related parameters include repetition frequency, pulse group period and pulse duration;

[0103] Install a coupling network to transmit the transient pulse signal of the pulse generator to the smart charging socket;

[0104] Based on the preset transient pulse related parameters, the pulse generator is started to apply a transient pulse signal to the smart charging socket;

[0105] Observe and record the operating current of the smart charging socket before, during and after the transient pulse signal is applied;

[0106] The electrical fast transient pulse group immunity formula is used to calculate the electrical fast transient pulse group immunity of the smart charging socket;

[0107] The electrical fast transient pulse group immunity formula is: ,

[0108] In the formula, The electrical fast transient pulse group immunity of the smart charging socket. is the pulse repetition frequency, is the pulse duration, , , The operating currents before, during and after the transient pulse signal is applied to the smart charging socket are respectively: is the pulse group period.

[0109] Electrical fast transient pulse group test immunity is a test that couples a pulse group consisting of many fast transient pulses to the power port, signal and control port of electrical and electronic equipment and observes the degree to which the equipment under test maintains its original performance when subjected to these pulse interferences.

[0110] Reference Figure 5 As shown in the figure, by simulating the faults in the power grid and the surge voltage generated by lightning, the surge immunity of the smart charging strip is evaluated, including:

[0111] Preset the waveform of the surge generator;

[0112] Connect the surge generator to the input port of the smart charging socket through a coupling network;

[0113] Based on the waveform of the preset surge generator, the surge generator is started to apply a surge voltage of positive and negative polarity to the smart charging socket;

[0114] After the test, conduct a comprehensive inspection of the smart charging socket;

[0115] Determine whether the structure of the smart charging socket is intact. If so, the surge immunity of the output smart charging socket is 100%. If not, the surge immunity of the output smart charging socket is 0%.

[0116] When lightning strikes, strong current and the electromagnetic pulse it generates can generate overvoltage in electronic equipment through conduction, induction, coupling, etc. When the overvoltage is transmitted along the power line or signal line, a lightning surge is formed. Usually, lightning will induce a higher voltage on the exposed power line. This voltage will not only be transmitted directly to the equipment, but the surge current generated by it will be coupled to the surrounding signal lines when it is transmitted in the power line. Such surges will cause great damage to electronic products, so the product is required to have a certain surge immunity capability.

[0117] Reference Figure 6 As shown in the figure, based on the electrostatic discharge immunity, radio frequency electromagnetic field radiation immunity, electrical fast transient pulse group immunity and surge immunity of the smart charging socket, the comprehensive scoring formula is used to calculate the comprehensive score of the electromagnetic interference test of the smart charging socket, which specifically includes:

[0118] Obtain the electrostatic discharge immunity, radio frequency electromagnetic field radiation immunity, electrical fast transient pulse group immunity and surge immunity of the smart charging socket;

[0119] Preset the scoring weights for each immunity level;

[0120] The comprehensive scoring formula is used to calculate the comprehensive score of the anti-electromagnetic interference test of the smart charging socket;

[0121] Determine whether the comprehensive score of the anti-electromagnetic interference test of the smart charging socket is greater than a preset threshold. If so, output that the quality of the smart charging socket is qualified; if not, output that the quality of the smart charging socket is unqualified;

[0122] The comprehensive scoring formula is: ,

[0123] In the formula, Comprehensive score for the anti-electromagnetic interference test of the smart charging socket. , , , They are the electrostatic discharge immunity, radio frequency electromagnetic field radiation immunity, electrical fast transient pulse group immunity and surge immunity of the smart charging socket. , , , are the corresponding scoring weights for each immunity level.

[0124] Through the above calculation method, the anti-electromagnetic interference capability of the smart charging strip can be comprehensively evaluated to ensure that electronic devices such as the smart charging strip can work stably in a complex electromagnetic environment, providing users with a more reliable and safe product experience.

[0125] Furthermore, based on the same inventive concept as the anti-electromagnetic interference test method for the above-mentioned smart charging socket, the present solution also proposes an anti-electromagnetic interference test system for the smart charging socket, comprising:

[0126] A test preparation module, which is used to ensure that the smart charging socket is in normal working condition and place it in an electromagnetic shielding room for testing;

[0127] A scoring calculation module is used to evaluate the electrostatic discharge immunity of the smart charging socket by simulating the electrostatic discharge generated when the human body or other objects contact the smart charging socket, evaluate the radio frequency electromagnetic field radiation immunity of the smart charging socket by simulating the radio frequency interference signal in the space, evaluate the electrical fast transient pulse group immunity of the smart charging socket by simulating the transient pulses generated when the inductive load is switched or the high-voltage switch is switched, evaluate the surge immunity of the smart charging socket by simulating the surge voltage generated by faults in the power grid and lightning strikes, and calculate the comprehensive score of the anti-electromagnetic interference test of the smart charging socket using a comprehensive scoring formula based on the electrostatic discharge immunity, radio frequency electromagnetic field radiation immunity, electrical fast transient pulse group immunity and surge immunity of the smart charging socket.

[0128] The scoring calculation module specifically includes:

[0129] A first anti-interference calculation unit, the first anti-interference calculation unit is used to evaluate the electrostatic discharge immunity of the smart charging socket by simulating the electrostatic discharge generated when a human body or other objects contacts the smart charging socket;

[0130] A second immunity calculation unit, the second immunity calculation unit is used to evaluate the radio frequency electromagnetic field radiation immunity of the smart charging socket by simulating the radio frequency disturbance signal in the space;

[0131] A third anti-interference calculation unit, the third anti-interference calculation unit is used to evaluate the electrical fast transient pulse group immunity of the smart charging socket by simulating transient pulses generated when an inductive load is switched or a high-voltage switch is switched;

[0132] A fourth anti-interference calculation unit, the fourth anti-interference calculation unit is used to evaluate the surge immunity of the smart charging socket by simulating a fault in the power grid and a surge voltage generated by a lightning strike;

[0133] A comprehensive score calculation unit is used to calculate the comprehensive score of the electromagnetic interference test of the smart charging socket based on the electrostatic discharge immunity, radio frequency electromagnetic field radiation immunity, electrical fast transient pulse group immunity and surge immunity of the smart charging socket using a comprehensive score formula.

[0134] Furthermore, the present solution also proposes a computer-readable storage medium on which a computer-readable program is stored. When the computer-readable program is called, the above-mentioned anti-electromagnetic interference test method for the smart charging socket is executed.

[0135] It is understandable that the storage medium may be a magnetic medium, such as a floppy disk, a hard disk, or a magnetic tape; an optical medium, such as a DVD; or a semiconductor medium, such as a solid state drive (SSD).

[0136] To sum up, the advantages of the present invention are: through the above testing method, the anti-electromagnetic interference ability of the smart charging socket can be comprehensively evaluated. In practical applications, appropriate test items and parameters can be selected according to specific needs and standards to ensure the stability and reliability of the equipment. At the same time, problems found in the test can be rectified and optimized in time to improve the overall performance of the equipment, ensure that electronic devices such as smart charging sockets can work stably in complex electromagnetic environments, and provide users with a more reliable and safe product experience.

[0137] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A method for testing the anti-electromagnetic interference of a smart charging socket, characterized in that: include: Make sure the smart charging socket is in normal working condition and place it in an electromagnetic shielding room for testing; The electrostatic discharge immunity of the smart charging strip is evaluated by simulating the electrostatic discharge generated when the human body or other objects touch the smart charging strip; Evaluate the RF electromagnetic field radiation immunity of the smart charging socket by simulating RF interference signals in space, where the RF interference signals include electromagnetic fields generated by mobile phones and radio transmitters; By simulating transient pulses generated when inductive loads are switched or high-voltage switches are switched, the immunity of the smart charging strip to electrical fast transient pulse groups is evaluated; Evaluate the surge immunity of the smart charging strip by simulating faults in the power grid and surge voltages generated by lightning strikes; Based on the electrostatic discharge immunity, radio frequency electromagnetic field radiation immunity, electrical fast transient pulse group immunity and surge immunity of the smart charging socket, the comprehensive score of the electromagnetic interference test of the smart charging socket is calculated using a comprehensive scoring formula; The evaluation of the electrostatic discharge immunity of the smart charging socket by simulating the electrostatic discharge generated when a human body or other object contacts the smart charging socket specifically includes: Mark the touch screen and button areas of the smart charging strip as touch-sensitive areas; Setting operating parameters of the electrostatic discharge generator, the operating parameters including discharge voltage, discharge polarity and discharge number; Place the metal probe at the contact sensitive part to ensure good discharge coupling; Based on the set operating parameters of the electrostatic discharge generator, electrostatic discharge is performed on the contact sensitive parts; Determine whether the display screen of the smart charging socket is distorted. If so, record the display screen distorted recovery time and use the scoring formula to calculate the score of the contact sensitive part. If not, record the score of the contact sensitive part as 100%; Determine whether data transmission is interrupted during the test. If so, record the data transmission interruption recovery time and use the scoring formula to calculate the data transmission stability score of the smart charging socket. If not, record the data transmission stability score of the smart charging socket as 100%; Calculate the average score of the data transmission stability score and the scores of each contact sensitive part, and output it as the electrostatic discharge immunity of the smart charging socket; The scoring formula is: , In the formula, To rate the test, For recovery time; The method of evaluating the radio frequency electromagnetic field radiation immunity of the smart charging socket by simulating the radio frequency interference signal in the space specifically includes: Preset the power of the signal generator and the test time; Turn on the signal generator to generate a radio frequency signal; Turn on the power amplifier to amplify the RF signal to a preset field strength level; The radio frequency electromagnetic field is radiated to the smart charging socket through the antenna to simulate the radio frequency interference signal in the space; Record the ground distance between the antenna and the smart charging socket and the height of the antenna; Observe and record the current changes of the smart charging socket during the test time; Use the radio frequency electromagnetic field radiation immunity formula to calculate the radio frequency electromagnetic field radiation immunity of the smart charging socket; The radio frequency electromagnetic field radiation immunity formula is: , In the formula, The radio frequency electromagnetic field radiation immunity of the smart charging socket. , are the ground distance between the antenna and the smart charging socket and the height of the antenna, is the variance of the current data of the smart charging strip during the test time, is the power amplifier gain, is the power of the signal generator, It's time for testing.

2. The anti-electromagnetic interference test method for a smart charging socket according to claim 1, characterized in that: The evaluation of the electrical fast transient pulse group immunity of the smart charging socket by simulating the transient pulse generated when the inductive load is switched or the high-voltage switch is switched specifically includes: Preset transient pulse related parameters, wherein the transient pulse related parameters include repetition frequency, pulse group period and pulse duration; Install a coupling network to transmit the transient pulse signal of the pulse generator to the smart charging socket; Based on the preset transient pulse related parameters, the pulse generator is started to apply a transient pulse signal to the smart charging socket; Observe and record the operating current of the smart charging socket before, during and after the transient pulse signal is applied; The electrical fast transient pulse group immunity formula is used to calculate the electrical fast transient pulse group immunity of the smart charging socket; The electrical fast transient pulse group immunity formula is: , In the formula, The electrical fast transient pulse group immunity of the smart charging socket. is the pulse repetition frequency, is the pulse duration, , , The operating currents before, during and after the transient pulse signal is applied to the smart charging socket are respectively: is the pulse group period.

3. The anti-electromagnetic interference test method for a smart charging socket according to claim 2, characterized in that: The evaluation of the surge immunity of the smart charging strip by simulating the surge voltage generated by the fault in the power grid and the lightning strike specifically includes: Preset the waveform of the surge generator; Connect the surge generator to the input port of the smart charging socket through a coupling network; Based on the waveform of the preset surge generator, the surge generator is started to apply a surge voltage of positive and negative polarity to the smart charging socket; After the test, conduct a comprehensive inspection of the smart charging socket; Determine whether the structure of the smart charging socket is intact. If so, the surge immunity of the output smart charging socket is 100%. If not, the surge immunity of the output smart charging socket is 0%.

4. The anti-electromagnetic interference test method for a smart charging socket according to claim 3, characterized in that: The electrostatic discharge immunity, radio frequency electromagnetic field radiation immunity, electrical fast transient pulse group immunity and surge immunity of the smart charging socket are used to calculate the comprehensive score of the electromagnetic interference test of the smart charging socket using a comprehensive scoring formula, which specifically includes: Obtain the electrostatic discharge immunity, radio frequency electromagnetic field radiation immunity, electrical fast transient pulse group immunity and surge immunity of the smart charging socket; Preset the scoring weights for each immunity level; The comprehensive scoring formula is used to calculate the comprehensive score of the anti-electromagnetic interference test of the smart charging socket; Determine whether the comprehensive score of the anti-electromagnetic interference test of the smart charging socket is greater than a preset threshold. If so, output that the quality of the smart charging socket is qualified; if not, output that the quality of the smart charging socket is unqualified; The comprehensive scoring formula is: , In the formula, Comprehensive score for the anti-electromagnetic interference test of the smart charging socket. , , , They are the electrostatic discharge immunity, radio frequency electromagnetic field radiation immunity, electrical fast transient pulse group immunity and surge immunity of the smart charging socket. , , , are the corresponding scoring weights for each immunity level.

5. An anti-electromagnetic interference test system for a smart charging socket, used to implement the anti-electromagnetic interference test method for a smart charging socket as described in any one of claims 1 to 4, characterized in that: include: A test preparation module, which is used to ensure that the smart charging socket is in normal working condition and is placed in an electromagnetic shielding room for testing; A scoring calculation module is used to evaluate the electrostatic discharge immunity of the smart charging socket by simulating the electrostatic discharge generated when the human body or other objects contact the smart charging socket, evaluate the radio frequency electromagnetic field radiation immunity of the smart charging socket by simulating the radio frequency interference signal in the space, evaluate the electrical fast transient pulse group immunity of the smart charging socket by simulating the transient pulses generated when the inductive load is switched or the high-voltage switch is switched, evaluate the surge immunity of the smart charging socket by simulating the surge voltage generated by faults in the power grid and lightning strikes, and calculate the comprehensive score of the anti-electromagnetic interference test of the smart charging socket using a comprehensive scoring formula based on the electrostatic discharge immunity, radio frequency electromagnetic field radiation immunity, electrical fast transient pulse group immunity and surge immunity of the smart charging socket.

6. The anti-electromagnetic interference test system for a smart charging socket according to claim 5, characterized in that: The score calculation module specifically includes: A first anti-interference calculation unit, the first anti-interference calculation unit is used to evaluate the electrostatic discharge immunity of the smart charging socket by simulating the electrostatic discharge generated when a human body or other objects contacts the smart charging socket; A second immunity calculation unit, the second immunity calculation unit is used to evaluate the radio frequency electromagnetic field radiation immunity of the smart charging socket by simulating the radio frequency disturbance signal in the space; A third anti-interference calculation unit, the third anti-interference calculation unit is used to evaluate the electrical fast transient pulse group immunity of the smart charging socket by simulating transient pulses generated when an inductive load is switched or a high-voltage switch is switched; A fourth anti-interference calculation unit, the fourth anti-interference calculation unit is used to evaluate the surge immunity of the smart charging socket by simulating a fault in the power grid and a surge voltage generated by a lightning strike; A comprehensive score calculation unit is used to calculate the comprehensive score of the electromagnetic interference test of the smart charging socket based on the electrostatic discharge immunity, radio frequency electromagnetic field radiation immunity, electrical fast transient pulse group immunity and surge immunity of the smart charging socket using a comprehensive score formula.

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