Electromagnetic shielding device implanted in tent and parameter configuration method thereof

Abstract

The invention provides an electromagnetic shielding device implanted in a tent and a parameter configuration method thereof, and belongs to the technical field of electromagnetic shielding, the electromagnetic shielding device implanted in the tent comprises a plurality of stand columns, the lower side of the surface of each stand column is provided with two rotating surfaces; the multiple sets of connecting mechanisms are arranged, the multiple sets of connecting mechanisms are connected with the multiple stand columns correspondingly, and each set of connecting mechanism comprises a rotating column, a connecting sleeve, a sliding rod, a connecting rotating block and a U-shaped rotating block; by using the device, compared with a traditional scheme, the electromagnetic shielding device does not need to be installed on the surface of a framework in a tent, and the device is quite convenient to install and store through the arranged connecting mechanism.

Description

Technical Field

[0001] The invention belongs to the technical field of electromagnetic shielding, and in particular relates to an electromagnetic shielding device implanted in a tent and a parameter configuration method thereof. Background Art

[0002] An electromagnetic shield is an electronic device used to reduce or eliminate electromagnetic interference (EMI). The working principle of an electromagnetic shield is to cancel the effects of an interfering electromagnetic field by generating an opposite electromagnetic field. Electromagnetic shields are usually made of conductive materials, such as metal or conductive coatings, to create a shielded area to prevent the propagation of electromagnetic waves.

[0003] Implanting electromagnetic shielding in a tent is a protective measure used to prevent external electromagnetic wave interference or prevent internal electromagnetic waves from leaking out; electromagnetic shielding is usually achieved through metal materials because metal can absorb or reflect electromagnetic waves; installing an electromagnetic shielding device in a tent can protect the electronic equipment inside the tent from external interference and prevent sensitive information from leaking out in the form of electromagnetic waves;

[0004] In the prior art, the electromagnetic shielding device implanted in the camping tent is usually installed on the surface of the tent frame. For the tent whose frame is located in the tent interlayer, the electromagnetic shielding device cannot be installed, and the tent does not have the electromagnetic shielding function, and its function is limited. Summary of the invention

[0005] The purpose of the present invention is to provide an electromagnetic shielding device implanted in a tent and a parameter configuration method thereof, aiming to solve the problem that in the prior art, the electromagnetic shielding device implanted in a camping tent is usually installed on the surface of the tent frame. For a tent with a frame located in the tent interlayer, the electromagnetic shielding device cannot be installed, and the tent does not have the electromagnetic shielding function and its function is limited.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] An electromagnetic shielding device embedded in a tent, comprising:

[0008] There are multiple upright posts, and the lower sides of the surfaces of the upright posts are each provided with two rotating surfaces;

[0009] A connection mechanism, which is provided with multiple groups, wherein the multiple groups of connection mechanisms are respectively connected to multiple columns, each group of connection mechanisms includes a rotating column, a connecting sleeve, a sliding rod, a connecting rotating block and a U-shaped rotating block, wherein two rotating columns, two connecting sleeves and two sliding rods are each provided, the two rotating columns are respectively rotatably connected to the surfaces of two adjacent rotating surfaces, the two connecting sleeves are respectively rotatably connected in the two rotating columns, the two sliding rods are respectively slidably connected in the two connecting sleeves, the connecting rotating block is fixedly connected to one end of one of the sliding rods, the U-shaped rotating block is fixedly connected to one end of the other sliding rod, and the U-shaped rotating block is rotatably connected in the connecting rotating block; and

[0010] The electromagnetic shielding device is provided in plurality, and the plurality of electromagnetic shielding devices are respectively arranged in a plurality of pillars.

[0011] As a preferred solution of the present invention, inner sleeves are fixedly connected inside the plurality of columns, and electromagnetic shielding devices are slidably connected inside the plurality of inner sleeves.

[0012] As a preferred solution of the present invention, the lower ends of the plurality of columns are fixedly connected with anti-slip sheets.

[0013] As a preferred solution of the present invention, the upper ends of the plurality of electromagnetic shielding devices are fixedly connected with handles.

[0014] As a preferred solution of the present invention, a certain friction force is provided between each inner sleeve and the electromagnetic shielding device.

[0015] As a preferred solution of the present invention, the length of each connecting sleeve is set to 60 cm.

[0016] As a preferred solution of the present invention, the height of the column is set to 25 cm.

[0017] As a preferred solution of the present invention, a plurality of the uprights and the connecting mechanisms form a rectangular frame.

[0018] As a preferred solution of the present invention, a plurality of the connecting sleeves are each provided with a limit block.

[0019] As a preferred solution of the present invention, the lengths of the plurality of electromagnetic shielding devices are all set to 17 cm.

[0020] As a preferred solution of the present invention, in order to further improve the electromagnetic shielding effect of the present invention, an intelligent algorithm is used to optimize the configuration and working mode of the electromagnetic shielding device in real time based on different electromagnetic environment parameters to achieve the best shielding effect; the specific steps of an electromagnetic shielding device implanted in a tent and its parameter configuration method are as follows:

[0021] Step 1: Sensor network layout

[0022] 1. Sensor type:

[0023] Electromagnetic spectrum sensor: used to measure the frequency of electromagnetic waves in different frequency bands;

[0024] Intensity sensor: used to measure the intensity of electromagnetic waves;

[0025] Positioning sensor: used to locate the direction and position of the electromagnetic interference source;

[0026] 2. Sensor layout:

[0027] Poles: Place sensors on the poles at the four corners of the tent to ensure that the entire area of ​​the tent is covered;

[0028] Top: A sensor is placed in the center of the top of the tent to monitor the overall electromagnetic environment;

[0029] Ground: Place sensors on the ground of the tent to monitor electromagnetic interference from the ground;

[0030] Step 2: Data preprocessing

[0031] Data cleaning: processing sensor failure or false alarm data points, removing outliers and noise data;

[0032] Detect and remove outliers using statistical methods and time series analysis;

[0033] Data normalization: Use Min-Max normalization to convert data of different dimensions and map the data to the [0, 1] interval:

[0034]

[0035] Among them, x is the original data, x′ is the normalized data, and x min and x max are the minimum and maximum values ​​in the data set, respectively;

[0036] Feature extraction: extract key features from raw data and construct feature vectors as input for machine learning;

[0037] Frequency characteristics: electromagnetic wave intensity in different frequency bands

[0038] Time characteristics: time series characteristics of electromagnetic intensity;

[0039] Spatial characteristics: electromagnetic intensity and frequency characteristics at different sensor locations;

[0040] Step 3: Improved ANFIS model training

[0041] 1. Choice and definition of nonlinear membership function

[0042] Logistic membership function:

[0043]

[0044] in, is the membership function value, indicating the input value x i , belongs to the fuzzy set A i The membership degree ranges from 0 to 1; x i is the input variable, indicating the specific value of the membership to be calculated; α is the control parameter, which determines the steepness of the membership function; a larger α value will make the membership function steeper in (x i -c i ) changes faster when changing; c i is the central parameter, which indicates the central point of the membership function, that is, when x i =c i When , the membership function value reaches 0.5;

[0045] Sigmoid membership function:

[0046]

[0047] in, For input x i Belongs to the fuzzy set A i The membership degree ranges from 0 to 1, indicating that the input x i Belongs to set A i The degree of x i is the input variable, indicating the specific value that needs to be fuzzy processed; γ is the parameter that controls the steepness of the membership function. The larger the γ value, the steeper the change of the membership function, that is, the faster the change near the middle value; δ i is the central value of the membership function, indicating that the function is at x i =δ i When the membership degree reaches 0.5, it is the symmetric center of the membership function;

[0048] 2. Fuzzy rule generation:

[0049] Combining data-driven and expert knowledge to generate fuzzy rules, the form of fuzzy rules is:

[0050] R i :I fx1 isA 1i andx2 i sA 2i and...theny i =f i (x)

[0051] Among them, R i represents the i-th fuzzy rule;

[0052] x1, x2, x3…are input variables, representing the specific values ​​that need to be fuzzy processed; A 1i , A 2i , A 3i …is a fuzzy set, indicating the fuzzy sets to which the input variables belong respectively; y i is the output variable, indicating the output result of the i-th fuzzy rule; f i (x) is the function f i represents the output value calculated according to the fuzzy rule of the input variable x;

[0053] 3. Rule layer output calculation

[0054] Calculate the activation w of each rule i :

[0055]

[0056] Among them, w i represents the activation (weight) of the ith rule, which is used to measure the degree of activation of the rule under given input conditions; Π represents the multiplication symbol, which is used to represent the product of all product terms; j represents the index of the input variable, ranging from 1 to n; n represents the total number of input variables; represents the input variable, which belongs to the fuzzy set A ji The degree of membership;

[0057] 4. Normalization layer output

[0058] Normalize the activations:

[0059]

[0060] in, represents the normalized activation of the rule; the normalized activation is the activation w i The ratio of the activation degree of all rules to the total activation degree of all rules; w i represents the activation degree of the i-th rule; represents the sum of activations of all rules, where k represents the index of the rule, ranging from 1 to m; m represents the total number of fuzzy rules;

[0061] 5. Output layer calculation

[0062] Output the final result:

[0063]

[0064] f i (x) = p i x1+q i x2+...+r i

[0065] Among them, y represents the final output result of the fuzzy system; represents the normalized activation of the ith rule; f i (x) represents the output function of the i-th rule, which calculates the output value based on the input variable x; pi ， q i , ..., r i represents the linear coefficient of the i-th rule, which is used to calculate the output value; x1, x2, ... represent the input variables;

[0066] Step 4: Multi-objective optimization

[0067] 1. Optimize target definition

[0068] Introducing multi-objective optimization, objective function:

[0069] Minimize J=α1E+α2C+α3S

[0070] J represents the value of the optimization objective function; MinimizeJ is to minimize J; E represents the electromagnetic shielding effect; C represents energy consumption, the lower the energy consumption, the lower the value of C; S represents stability, the higher the stability, the lower the value of S; α1, α2, α3 represent weight coefficients, which are used to balance the importance of different objectives;

[0071] 2. NSGA-II algorithm

[0072] Use NSGA-II algorithm to optimize and select the optimal solution;

[0073] Step 5: Adaptive learning rate

[0074] 1. Adam Optimizer

[0075] Update the parameters using the Adam optimizer:

[0076]

[0077] θ t represents the value of the parameter at the tth iteration; θ t+1 represents the value of the parameter at the t+1th iteration, η represents the learning rate, which is a hyperparameter that controls the step size of each parameter update; represents the bias-corrected value of the first-order moment estimate at the t-th iteration; represents the bias correction value of the second-order moment estimate at the tth iteration; ∈ represents a small constant used to prevent division by zero errors, which is usually very small;

[0078] Step 6: Real-time optimization and adjustment

[0079] 1. Real-time data input

[0080] The sensor network continuously monitors changes in the electromagnetic environment and feeds real-time data into the pre-trained ANFIS model;

[0081] 2. Dynamic Adjustment

[0082] The ANFIS model makes predictions based on real-time input data and outputs the optimal configuration and working mode of the electromagnetic shield. The optimized configuration instructions output by the ANFIS model are sent to the electromagnetic shield to dynamically adjust the shield's operating frequency, strength and other parameters to achieve the best shielding effect.

[0083] Compared with the prior art, the present invention has the following beneficial effects:

[0084] 1. In this solution, by using this device, compared with the traditional solution, there is no need to install the electromagnetic shielding device on the frame surface inside the tent. The provided connection mechanism makes the installation and storage of this device very convenient.

[0085] 2. In this solution, when the electromagnetic shielding device is pulled out from the inner sleeve, the friction force needs to be overcome. After the electromagnetic shielding device is pulled out from the inner sleeve, the electromagnetic shielding device is positioned by the friction force, which is used to improve the stability of the electromagnetic shielding device when it is used.

[0086] 3. In this solution, the rectangular frame is adjusted by a connecting mechanism, which is suitable for the shapes of most tents and has high adaptability.

[0087] 4. In this scheme, the improved ANFIS algorithm is used and nonlinear membership functions are adopted to enhance the adaptability to complex electromagnetic environments, ensuring that a stable electromagnetic shielding effect can be provided in a changing environment.

[0088] 5. In this scheme, by introducing a multi-objective optimization algorithm (such as NSGA-II), the electromagnetic shielding effect, energy consumption and system stability are optimized at the same time to achieve an improvement in comprehensive performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0089] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0090] Figure 1 It is a first perspective stereogram of the present invention;

[0091] Figure 2 It is a second viewing angle stereogram of the present invention;

[0092] Figure 3 For the present invention Figure 2 A partial enlarged view of the middle A;

[0093] Figure 4For the present invention Figure 2 A partial enlarged view of point B in the middle;

[0094] Figure 5 It is a third perspective stereogram of the present invention;

[0095] Figure 6 is a three-dimensional diagram of the storage mechanism of the present invention;

[0096] Figure 7 An exploded view of the storage mechanism of the present invention;

[0097] Figure 8 It is a flow chart of the intelligent algorithm in the present invention.

[0098] In the figure: 1. column; 101. rotating surface; 102. anti-slip sheet; 103. inner sleeve; 104. electromagnetic shielding device; 105. handle; 2. rotating column; 3. connecting sleeve; 4. sliding rod; 5. connecting rotating block; 6. U-shaped rotating block. DETAILED DESCRIPTION

[0099] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0100] Example 1

[0101] See also Figure 1-Figure 7 , the present invention provides the following technical solutions:

[0102] An electromagnetic shielding device embedded in a tent, comprising:

[0103] There are multiple columns 1, and the lower sides of the surfaces of the multiple columns 1 are each provided with two rotating surfaces 101;

[0104] A connection mechanism is provided with multiple groups, wherein the multiple groups of connection mechanisms are respectively connected to multiple columns 1, each group of connection mechanisms includes a rotating column 2, a connecting sleeve 3, a sliding rod 4, a connecting rotating block 5 and a U-shaped rotating block 6, and there are two rotating columns 2, two connecting sleeves 3 and two sliding rods 4, and the two rotating columns 2 are respectively rotatably connected to the surfaces of two adjacent rotating surfaces 101, the two connecting sleeves 3 are respectively rotatably connected in the two rotating columns 2, the two sliding rods 4 are respectively slidably connected in the two connecting sleeves 3, the connecting rotating block 5 is fixedly connected to one end of one of the sliding rods 4, the U-shaped rotating block 6 is fixedly connected to one end of the other sliding rod 4, and the U-shaped rotating block 6 is rotatably connected in the connecting rotating block 5; and

[0105] There are multiple electromagnetic shielding devices 104 , and the multiple electromagnetic shielding devices 104 are respectively arranged in the multiple pillars 1 .

[0106] In a specific embodiment of the present invention, the column 1 is made of metal, the upper part of which is a cylinder and the lower part is a support leg. The cylinder is used to store the electromagnetic shielding device 104, and the lower support leg is used to support the ground. The connecting mechanism is provided with four groups, which are respectively used to connect the four columns 1. The four columns 1 and the four groups of connecting mechanisms form a rectangle. The two rotating columns 2 in the connecting mechanism are respectively rotatably connected to the two rotating surfaces 101, and the connecting sleeve 3 is rotatably connected to the rotating column 2. Through the rotational connection, it is convenient to adjust the connection angle and position, which is convenient for setting up the device. The sliding rod 4 slides in the connecting sleeve 3, and the distance between the two columns 1 is adjusted through its sliding. The connecting block 5 and the U-shaped rotating block 6 are also rotatably connected, which is convenient for adjusting the connection angle and position. Angle, convenient for building the device, when the tent is set up, the four pillars 1 are respectively placed at the positions of the four legs of the tent, the sliding rod 4 is pulled up, the distance between the two pillars 1 is adjusted, and then the electromagnetic shielding device 104 is pulled out from the pillar 1. The electromagnetic shielding device 104 realizes the electromagnetic shielding function during operation. This solution is used for building the tent after the tent is set up, and it fits the four legs in the tent. When in use, there is no need to install the electromagnetic shielding device 104 on the frame surface in the tent. Through the set connection mechanism, the installation and storage of the device are very convenient. The electromagnetic shielding device 104 is a prior art. The specific model of 104 can be selected according to actual needs, and no further details will be given here.

[0107] For details, please refer to Figure 1-Figure 7 Inner sleeves 103 are fixedly connected inside the plurality of columns 1 , and electromagnetic shielding devices 104 are slidably connected inside the plurality of inner sleeves 103 .

[0108] In this embodiment: the inner sleeve 103 is used to accommodate the electromagnetic shielding device 104. A certain friction force is provided between the inner sleeve 103 and the electromagnetic shielding device 104. When the electromagnetic shielding device 104 is used and the electromagnetic shielding device 104 is pulled out from the inner sleeve 103, the friction force needs to be overcome. After the electromagnetic shielding device 104 is pulled out from the inner sleeve 103, the electromagnetic shielding device 104 is positioned by the friction force, so as to improve the stability of the electromagnetic shielding device 104 when in use.

[0109] For details, please refer to Figure 1-Figure 7 The lower ends of the plurality of columns 1 are fixedly connected with anti-slip sheets 102 .

[0110] In this embodiment, the anti-slip sheet 102 is used to increase the friction between the column 1 and the ground, thereby improving the stability of the device when it is set up on the ground inside the tent.

[0111] For details, please refer to Figure 1-Figure 7 The upper ends of the plurality of electromagnetic shielding devices 104 are fixedly connected with a handle 105 .

[0112] In this embodiment, the handle 105 is provided to facilitate pulling the electromagnetic shielding device 104 out of the inner sleeve 103 , thereby facilitating the use of the electromagnetic shielding device 104 .

[0113] For details, please refer to Figure 1-Figure 7 There is a certain friction force between each inner sleeve 103 and the electromagnetic shielding device 104.

[0114] In this embodiment, when the electromagnetic shielding device 104 is pulled out from the inner sleeve 103, the friction force needs to be overcome. After the electromagnetic shielding device 104 is pulled out from the inner sleeve 103, the electromagnetic shielding device 104 is positioned by the friction force to improve the stability of the electromagnetic shielding device 104 when in use.

[0115] For details, please refer to Figure 1-Figure 7 , the length of each connecting sleeve 3 is set to 60cm.

[0116] In this embodiment, the length of the connecting sleeve 3 is set to 60 cm, which is suitable for accommodating the sliding rod 4. By adjusting the lengths of the connecting sleeve 3 and the sliding rod 4, the device can be suitable for tents of most specifications and has high applicability.

[0117] For details, please refer to Figure 1-Figure 7 , the height of column 1 is set to 25cm.

[0118] In this embodiment, the height of the column 1 is set to 25 cm, which is suitable for the use of the electromagnetic shielding device 104, so that the electromagnetic shielding device 104 is located at the optimal shielding height.

[0119] For details, please refer to Figure 1-Figure 7 , multiple columns 1 and connecting mechanisms form a rectangular frame.

[0120] In this embodiment, the formed rectangular frame is adjusted through the connecting mechanism, suitable for the shapes of most tents, and has high adaptability.

[0121] For details, please refer to Figure 1-Figure 7 , a plurality of connecting sleeves 3 are each provided with a limit block.

[0122] In this embodiment: the limiting block is used to prevent the sliding rod 4 from sliding out of the connecting sleeve 3.

[0123] For details, please refer to Figure 1-Figure 7 The lengths of the multiple electromagnetic shields 104 are all set to 17 cm.

[0124] In this embodiment, the length of the electromagnetic shielding device 104 is 17 cm. When the electromagnetic shielding device 104 is pulled out from the inner sleeve 103, the maximum height from the ground is 30 cm, which is suitable for the electromagnetic shielding device 104 to function.

[0125] The working principle and use process of the present invention are as follows: when using the present solution, the tent is first erected. After the tent is erected, the present device is erected according to the structure inside the tent so that the upright posts 1 are located at the four corners inside the tent. Then the sliding rod 4 is pulled to pull the sliding rod 4 out of the connecting sleeve 3. Through the connecting mechanism, the present device is fitted to the edge position inside the tent and will not hinder people's activities inside the tent. Finally, the electromagnetic shielding device 104 is pulled out of the inner sleeve 103 through the handle 105 to complete the construction of the device. By using the present device, compared with the traditional solution, there is no need to install the electromagnetic shielding device 104 on the frame surface inside the tent. Through the provided connecting mechanism, the installation and storage of the present device are very convenient.

[0126] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0127] Example 2

[0128] Step 1: Data collection and preprocessing

[0129] Assume that the electromagnetic environment parameters collected by the sensor network and the corresponding optimal shielding configuration are as follows

[0130] Input feature matrix X (including frequency, intensity and interference source location)

[0131]

[0132] Output target vector Y (optimal shielding configuration)

[0133]

[0134] Step 2: Improved ANFIS model training

[0135] 1. Choice and definition of nonlinear membership function

[0136] Select the Logistic membership function:

[0137]

[0138] Assume α = 1 and c i =3

[0139] Membership calculation for input feature x1=2.5

[0140]

[0141] 2. Fuzzy rule generation

[0142] Suppose there are two fuzzy rules:

[0143] R1: Ifx1isA 11 andx2isA 12 ,theny1=f1(x)

[0144] R2: Ifx1isA 21 andx2isA 22 ,theny2=f2(x)

[0145] 3. Rule layer output calculation

[0146] Assume that the Logistic membership function is used for calculation:

[0147]

[0148] The activation degree is:

[0149]

[0150] 4. Normalization layer output

[0151] Assuming there is only one fuzzy rule, the normalized activation is:

[0152]

[0153] 5. Output layer calculation

[0154] Assume f1(x)=p1x1+q1x2+r1, where p1=0.5, q1=0.3, r1=0.2, then:

[0155]

[0156] Step 3: Multi-objective optimization

[0157] 1. Optimize target definition

[0158] Assume that the electromagnetic shielding effect E is the sum of squares of the errors between the actual shielding effect and the target value, the energy consumption C is the power consumption of the shielding device, and the stability S is the system stability.

[0159] Minimize J=α1E+α2C+α3S

[0160] Assume α1 = 0.5, α2 = 0.3, α3 = 0.2, initial condition = 0.1, C = 0.05, S = 0.01: J = 0.5 0.1 + 0.3 0.05 + 0.2 0.01 = 0.05 + 0.015 + 0.002 = 0.067

[0161] 2. NSGA-I algorithm

[0162] Use NSGA-II algorithm to optimize and select the parameter combination that minimizes J

[0163] Step 4: Adaptive Learning Rate

[0164] 1. Adam Optimizer

[0165] Assuming the initial learning rate η = 0.001, the parameter update is:

[0166]

[0167] Assume that the initial parameter θ t =0.5, first-order moment estimate Second moment estimate

[0168]

[0169] Step 5: Real-time optimization and adjustment

[0170] 1. Real-time data input

[0171] Assume that the real-time input data is x new =[3.5, 4.2, 2.8]

[0172] 2. Dynamic Adjustment

[0173] Prediction using the trained ANFIS model:

[0174]

[0175] The predicted optimization configuration instructions Send to the electromagnetic jammer to adjust the jammer parameters.

Claims

1. An electromagnetic shielding device embedded in a tent, characterized in that: include: The pillar (1) is provided with a plurality of pillars, and the lower side of the surface of each of the plurality of pillars (1) is provided with two rotating surfaces (101) A connection mechanism, wherein the connection mechanisms are provided in a plurality of groups, wherein the plurality of connection mechanisms are respectively connected to a plurality of columns (1), wherein each group of connection mechanisms comprises a rotating column (2), a connecting sleeve (3), a sliding rod (4), a connecting rotating block (5) and a U-shaped rotating block (6), wherein the rotating column (2), the connecting sleeve (3) and the sliding rod (4) are each provided with two, wherein the two rotating columns (2) are respectively rotatably connected to the surfaces of two adjacent rotating surfaces (101), the two connecting sleeves (3) are respectively rotatably connected to the inside of the two rotating columns (2), the two sliding rods (4) are respectively slidably connected to the inside of the two connecting sleeves (3), the connecting rotating block (5) is fixedly connected to one end of one of the sliding rods (4), the U-shaped rotating block (6) is fixedly connected to one end of the other sliding rod (4), and the U-shaped rotating block (6) is rotatably connected to the inside of the connecting rotating block (5); and A plurality of electromagnetic shielding devices (104) are provided, and the plurality of electromagnetic shielding devices (104) are respectively arranged in a plurality of upright posts (1).

2. The electromagnetic shielding device embedded in a tent according to claim 1, characterized in that: An inner sleeve (103) is fixedly connected inside each of the plurality of upright posts (1), and an electromagnetic shielding device (104) is slidably connected inside each of the plurality of inner sleeves (103).

3. The electromagnetic shielding device embedded in a tent according to claim 2, characterized in that: The lower ends of the plurality of upright posts (1) are all fixedly connected with anti-slip sheets (102).

4. The electromagnetic shielding device embedded in a tent according to claim 3, characterized in that: The upper ends of the plurality of electromagnetic shielding devices (104) are all fixedly connected with a handle (105).

5. The electromagnetic shielding device embedded in a tent according to claim 4, characterized in that: A certain friction force is provided between each inner sleeve (103) and the electromagnetic shielding device (104).

6. The electromagnetic shielding device embedded in a tent according to claim 5, characterized in that: The length of each connecting sleeve (3) is set to 60 cm.

7. The electromagnetic shielding device embedded in a tent according to claim 6, characterized in that: The height of the column (1) is set to 25 cm.

8. The electromagnetic shielding device embedded in a tent according to claim 7, characterized in that: A plurality of upright posts (1) and a connecting mechanism form a rectangular frame.

9. The electromagnetic shielding device embedded in a tent according to claim 8, characterized in that: A plurality of the connecting sleeves (3) are each provided with a limiting block.

10. The electromagnetic shielding device embedded in a tent according to claim 9, characterized in that: The lengths of the plurality of electromagnetic shielding devices (104) are all set to 17 cm.

11. The parameter configuration method for an electromagnetic shielding device embedded in a tent according to claim 9, characterized in that: Based on different electromagnetic environment parameters, the configuration and working mode of the electromagnetic shielding device are optimized in real time to achieve the best shielding effect; the specific steps are: Step 1: Sensor network layout 1. Sensor type: Electromagnetic spectrum sensor: used to measure the frequency of electromagnetic waves in different frequency bands; Electromagnetic wave intensity sensor: used to measure the intensity of electromagnetic waves; Positioning sensor: used to locate the direction and position of the electromagnetic interference source; 2. Sensor layout: Poles: Place sensors on the poles at the four corners of the tent to ensure that the entire area of ​​the tent is covered; Top: A sensor is placed in the center of the top of the tent to monitor the overall electromagnetic environment; Ground: Place sensors on the ground of the tent to monitor electromagnetic interference from the ground; Step 2: Data preprocessing Data cleaning: processing sensor failure or false alarm data points, removing outliers and noise data; Detect and remove outliers using statistical methods and time series analysis; Data normalization: Use Min-Max normalization to convert data of different dimensions and map the data to the [0, 1] interval: Among them, x is the original data, x′ is the normalized data, and x min and x max are the minimum and maximum values ​​in the data set, respectively; Feature extraction: extract key features from raw data and construct feature vectors as input for machine learning; Frequency characteristics: electromagnetic wave intensity in different frequency bands Time characteristics: time series characteristics of electromagnetic intensity; Spatial characteristics: electromagnetic intensity and frequency characteristics at different sensor locations; Step 3: Improved adaptive neuro-fuzzy inference ANFIS model training 1. Choice and definition of nonlinear membership function Logistic membership function: in, is the membership function value, indicating the input value x i , belongs to the fuzzy set A i The membership degree ranges from 0 to 1; x i is the input variable, indicating the specific value of the membership to be calculated; α is the control parameter, which determines the steepness of the membership function; a larger α value will make the membership function steeper in (x i -c i ) changes faster when changing; c i is the central parameter, which indicates the central point of the membership function, that is, when x i =c i When , the membership function value reaches 0.5; Sigmoid membership function: Among them, γ is a parameter that controls the steepness of the membership function. The larger the γ value, the steeper the change of the membership function, that is, the faster the change near the middle value; δ i is the central value of the membership function, indicating that the function is at x i =δ i When the membership degree reaches 0.5, it is the symmetric center of the membership function; 2. Fuzzy rule generation: Combining data-driven and expert knowledge to generate fuzzy rules, the form of fuzzy rules is: R i :Ifx1 isA 1i andx2 i sA 2i and...theny i =f i (x) in, R i represents the i-th fuzzy rule; x1, x2, x3…are input variables, representing the specific values ​​that need to be fuzzy processed; A 1i , A 2i , A 3i …is a fuzzy set, indicating the fuzzy sets to which the input variables belong respectively; y i is the output variable, indicating the output result of the i-th fuzzy rule; f i (x) is the function f i represents the output value calculated according to the fuzzy rule of the input variable x; 3. Rule layer output calculation Calculate the activation w of each rule i : Among them, w i represents the activation (weight) of the ith rule, which is used to measure the degree of activation of the rule under given input conditions; Π represents the multiplication symbol, which is used to represent the product of all product terms; j represents the index of the input variable, ranging from 1 to n; n represents the total number of input variables; represents the input variable, which belongs to the fuzzy set A ji The degree of membership; 4. Normalization layer output Normalize the activations: in, represents the normalized activation of the rule; the normalized activation is the activation w i The ratio of the activation degree of all rules to the total activation degree of all rules; w i represents the activation degree of the i-th rule; represents the sum of activations of all rules, where k represents the index of the rule, ranging from 1 to m; m represents the total number of fuzzy rules; 5. Output layer calculation Output the final result: f i (x)=p i x1+q i x2+...+r i Among them, y represents the final output result of the fuzzy system; represents the normalized activation of the ith rule; f i (x) represents the output function of the i-th rule, which calculates the output value based on the input variable x; p i ,q ij ..., r i represents the linear coefficient of the i-th rule, which is used to calculate the output value; x1, x2, ... represent the input variables; Step 4: Multi-objective optimization 1. Optimize target definition Introducing multi-objective optimization, objective function: Minimize J=α1E+α2C+α3S J represents the value of the optimization objective function; Minimize J is to minimize J; E represents the electromagnetic shielding effect; C represents energy consumption, the lower the energy consumption, the lower the value of C; S represents stability, the higher the stability, the lower the value of S; α1, α2, α3 represent weight coefficients, which are used to balance the importance of different objectives; 2. NSGA-II algorithm Use NSGA-II algorithm to optimize and select the optimal solution; Step 5: Adaptive learning rate 1. Adam Optimizer Update the parameters using the Adam optimizer: θ t represents the value of the parameter at the tth iteration; θ t+1 represents the value of the parameter at the t+1th iteration, η represents the learning rate, which is a hyperparameter that controls the step size of each parameter update; represents the bias-corrected value of the first-order moment estimate at the t-th iteration; Represents the bias correction value of the second-order moment estimate at the tth iteration; ∈ represents a small constant used to prevent division by zero errors, and is usually very small; Step 6: Real-time optimization and adjustment 1. Real-time data input The sensor network continuously monitors changes in the electromagnetic environment and feeds real-time data into the pre-trained ANFIS model; 2. Dynamic Adjustment The ANFIS model makes predictions based on real-time input data and outputs the optimal configuration and working mode of the electromagnetic shield. The optimized configuration instructions output by the ANFIS model are sent to the electromagnetic shield to dynamically adjust the shield's operating frequency, strength and other parameters to achieve the best shielding effect.

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