An antenna signal adjusting method, a wireless switch panel and a storage medium

Abstract

The application discloses an antenna signal adjusting method applied to a wireless switch panel, wherein the wireless switch panel comprises a wireless communication device and an antenna, and the method comprises the following steps: acquiring a return loss change curve varying with a communication frequency between the wireless communication device and the antenna respectively based on the condition that the wireless switch panel is installed in different medium types; dividing a communication frequency of the wireless communication device into multiple frequency bands, determining a frequency band where a minimum return loss in a communication frequency range is located according to the return loss change curve, and matching the frequency band with a corresponding medium type; detecting a frequency band where a resonant frequency of the current antenna is located in the communication frequency range, and adaptively adjusting based on the matching result. The application further discloses a wireless switch panel and a computer readable storage medium, which can adaptively adjust a network signal.

Description

Technical Field

[0001] This invention relates to the field of Internet technology, and in particular to an antenna signal adjustment method, a wireless switch panel, and a storage medium. Background Technology

[0002] For aesthetic purposes, interior decoration often uses materials such as cement, wood, glass, and metal on walls. When wireless switch panels are installed on these walls, the resonant frequency of their antennas will be affected to varying degrees.

[0003] The current industry practice is to leave enough bandwidth for the antenna to cope with the resonant frequency shift under different wall material environments.

[0004] Generally, the larger the bandwidth of an antenna, the larger its size. Current product designs prioritize miniaturization and thinness, severely limiting antenna space and making it difficult to manufacture antennas that meet requirements. Summary of the Invention

[0005] In view of this, the purpose of this invention is to propose an antenna signal conditioning method that uses adaptive matching network technology to automatically switch the matching network in different environments, so that the resonant frequency of the antenna is kept at a relatively ideal position.

[0006] To achieve the above-mentioned technical objectives, the technical solution adopted by this invention is as follows:

[0007] This invention provides an antenna signal modulation method applied to a wireless switch panel, the wireless switch panel including a wireless communication device and an antenna, the method comprising:

[0008] Based on the installation of the wireless switch panel on different media types, the return loss variation curves between the wireless communication device and the antenna as a function of communication frequency were obtained respectively.

[0009] The communication frequency of the wireless communication device is divided into multiple frequency bands. The frequency band in which the device is located is determined based on the minimum return loss value of the return loss variation curve within the communication frequency range, and then matched with the corresponding medium type.

[0010] The resonant frequency of the current antenna is detected within the frequency band of the communication frequency range, and adaptive adjustment is performed based on the matching result.

[0011] Furthermore, the step of determining the frequency band of the return loss based on the minimum return loss value within the communication frequency range of the return loss variation curve, and matching it with the corresponding medium type, further includes:

[0012] The relative position of the frequency band within the communication frequency range is determined based on the minimum return loss value, and the relative position of the frequency band within the communication frequency range is matched with the corresponding medium type.

[0013] Furthermore, detecting the frequency band within the communication frequency range where the current resonant frequency of the antenna falls specifically includes:

[0014] Based on all communication channels of the wireless communication device, target communication channels for each frequency band are selected respectively.

[0015] Obtain the signal strength values ​​of each of the target communication channels;

[0016] The resonant frequency of the current antenna is determined within the communication frequency range based on the target communication channel with the highest signal strength value.

[0017] Furthermore, the process of selecting target communication channels for each frequency band specifically includes:

[0018] The communication channel that is closest to the center frequency of each frequency band among all communication channels is taken as the target communication channel.

[0019] Furthermore, the adaptive adjustment based on the matching result specifically includes:

[0020] The control signal of the wireless communication device is coupled to an adaptive antenna network matching module, which has multiple matching networks that can adapt to different media types.

[0021] The corresponding matching network is selected based on the matching result, thereby adjusting the resonant frequency of the antenna.

[0022] Furthermore, the matching network includes a switch having electrical characteristics adjustable by the control signal and at least one reactive element.

[0023] Furthermore, the control signal selects the corresponding reactive element by controlling the state of the multiple switches, thereby adjusting the resonant frequency of the antenna.

[0024] Furthermore, the parameters of the reactive elements in the plurality of matching networks are at least set to adapt to dielectrics of different dielectric constants, and the selection of the corresponding matching network based on the matching result specifically includes:

[0025] Based on the dielectric constant level of the dielectric type in the matching result, the control signal selects the corresponding reactive element.

[0026] The present invention also provides a wireless switch panel, the wireless switch panel including a wireless communication device and an antenna, the wireless communication device further including a matching unit, a detection unit and an adjustment unit; wherein, the wireless communication device is communicatively connected to the antenna;

[0027] The matching unit is configured to divide the communication frequency of the wireless communication device into multiple frequency bands, determine the frequency band it belongs to based on the minimum return loss value of the return loss variation curve between the wireless communication device and the antenna within the communication frequency range, and match it with the corresponding medium type.

[0028] The detection unit is configured to detect the frequency band in which the current resonant frequency of the antenna falls within the communication frequency range;

[0029] The adjustment unit is configured to perform adaptive adjustment based on the matching result.

[0030] The present invention also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements an antenna signal modulation method as described above.

[0031] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0032] This invention utilizes adaptive matching network technology to automatically switch matching networks under different environments. Multiple matching networks are used to form different wall patterns. The signal strength at high, medium, and low frequencies determines the wall material against which the wireless switch panel is located. When the antenna's resonant frequency is determined to be slightly above the medium frequency, it indicates the optimal matching position is reached, and the position and parameters remain unchanged without switching. When the antenna's resonant frequency is determined to be slightly below the low frequency, it indicates the dielectric constant of the corresponding wall material is too low, requiring the switch to select the appropriate reactive component to appropriately increase the antenna's resonant frequency, maintaining it at a more ideal position. When the antenna's resonant frequency is determined to be slightly above the high frequency, it indicates the dielectric constant of the corresponding wall material is too high, requiring the switch to select the appropriate reactive component to appropriately decrease the antenna's resonant frequency, maintaining it at a more ideal position. This adjustment method allows for automatic adjustment of the antenna's resonant frequency under different wall material conditions without changing the antenna size, ensuring it remains at a relatively ideal position. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is an execution diagram of an antenna signal conditioning method provided by the present invention.

[0035] Figure 2 This is a schematic diagram of the antenna parallel resonant equivalent circuit provided by the present invention.

[0036] Figure 3 This is a schematic diagram of the antenna signal conditioning device provided by the present invention.

[0037] Figure 4 This is an execution diagram of an antenna signal conditioning method provided in an embodiment of the present invention.

[0038] Figure 5 This is a graph showing the relationship between the antenna resonant frequency and the antenna return loss as a function of frequency, provided by the present invention.

[0039] Figure 6 This is a schematic diagram of a computer-readable storage medium provided by the present invention.

[0040] Explanation of the labels in the diagram:

[0041] Wireless communication device 1, antenna 2, adaptive antenna network matching module 3, first matching network 31, second matching network 32, third matching network 33. Detailed Implementation

[0042] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be particularly noted that the following embodiments are for illustrative purposes only and do not limit the scope of the invention. Similarly, the following embodiments are only some, not all, embodiments of the present invention, and all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] like Figure 1 As shown, an antenna signal modulation method is applied to a wireless switch panel, the wireless switch panel including a wireless communication device 1 and an antenna 2, the method comprising:

[0044] Based on the installation of the wireless switch panel on different media types, the return loss variation curves between the wireless communication device 1 and the antenna 2 as a function of communication frequency are obtained respectively; these return loss variation curves can be obtained by simulation using HFSS software or a vector network analyzer.

[0045] The communication frequency of the wireless communication device 1 is divided into multiple frequency bands. The frequency band is determined based on the minimum return loss within the communication frequency range according to the return loss variation curve, and matched with the corresponding media type. Here, "frequency band" refers to high, medium, or low frequency, which is relative within a communication frequency range and not a fixed range. For example, the minimum return loss for a wooden wall medium occurs in a relatively low frequency band within the 2G-3G communication frequency range, not necessarily around 2.4G. If the communication frequency range is narrowed to 2.4G-2.5G, then the minimum return loss for the wooden wall medium might occur around 2.44G. Furthermore, a communication frequency range can be flexibly divided into multiple frequency bands based on the number of different media types, and is not limited to high, medium, and low.

[0046] The resonant frequency of the current antenna 2 is detected within the frequency band of the communication frequency range, and adaptive adjustment is performed based on the matching result.

[0047] Preferably, determining the frequency band based on the minimum return loss value within the communication frequency range of the return loss variation curve, and matching it with the corresponding medium type, further includes:

[0048] The relative position of the frequency band containing the minimum return loss within the communication frequency range is determined based on the minimum return loss value, and this relative position is then matched with the corresponding medium type. This is to ensure that the frequency band containing the minimum return loss value is a relative position within a communication frequency range, rather than a fixed frequency band range.

[0049] Preferably, detecting the frequency band within the communication frequency range where the current resonant frequency of the antenna 2 falls specifically includes:

[0050] Based on all communication channels of the wireless communication device 1, target communication channels for each frequency band are selected respectively.

[0051] The signal strength values ​​of each of the target communication channels are obtained respectively.

[0052] The resonant frequency of antenna 2 within the communication frequency range is determined based on the target communication channel with the highest signal strength value. This step is to further define which frequency band antenna 2 is biased towards based on the maximum signal strength value. It should be noted that this detects the position of the resonant frequency of antenna 2 within the communication frequency range.

[0053] Preferably, the selection method for the target communication channel specifically includes:

[0054] The communication channel closest to the center frequency of each frequency band among all communication channels is selected as the target communication channel. This step is to further limit the selection of target communication channels based on their center frequencies.

[0055] Preferably, the adaptive adjustment based on the matching result specifically includes:

[0056] The control signal of the wireless communication device 1 is coupled to the adaptive antenna network matching module 3, which has multiple matching networks that can adapt to different media types.

[0057] Based on the matching result, the corresponding matching network is selected to adjust the resonant frequency of the antenna 2. This step is to further limit the adaptive adjustment performed by the adaptive antenna network matching module 3.

[0058] Preferably, the matching network includes a switch with electrical characteristics adjustable by the control signal and at least one reactive element. This step is to further define the structure of each matching network. It should be noted that the reactive element in each path is one or more connected in series and / or parallel.

[0059] Preferably, the control signal controls the state of the multiple switches to select the corresponding reactive element, thereby adjusting the resonant frequency of the antenna 2.

[0060] Preferably, the switch is a radio frequency switch, and the reactive element is an inductor and / or a capacitor.

[0061] Preferably, the adaptive antenna network matching module 3 further includes a capacitor C and an inductor L. The two ends of the inductor C are coupled to the control signal of the wireless communication device 1. One end of the inductor L is connected to one end of the wireless communication device 1. The other end of the inductor L is connected to one end of the switch in each matching network and the antenna 2, respectively. The other end of the switch in each matching network is connected to the other end of the wireless communication device 1 through a corresponding reactive element.

[0062] Preferably, the parameters of the reactive elements in the plurality of matching networks are at least set to adapt to dielectrics with different dielectric constants, and the step of selecting the corresponding matching network according to the matching result specifically includes:

[0063] Based on the dielectric constant level of the dielectric type in the matching result, the control signal selects the corresponding reactive element.

[0064] The design concept of this invention is as follows:

[0065] When antenna 2 resonates, from a circuit perspective, antenna 2 can be equivalent to a parallel resonant circuit, such as... Figure 2 As shown.

[0066] In parallel resonance, we have: ω = 2πf;

[0067] Where ω represents the angular frequency of the alternating current, f represents the resonant frequency, C represents the capacitance, and L represents the inductance;

[0068] From the formula, we can derive that for parallel resonance:

[0069] Assuming L and ω remain constant, if the capacitive reactance is increased... If C increases, ωC increases. In order to maintain the resonance condition, i.e., ωC = 1 / ωL must hold again, 1 / ωL must increase and ωL must decrease. If L remains constant, ω must decrease, and the resonant frequency f needs to decrease.

[0070] Assuming C and ω remain constant, if the inductive reactance ωL is increased, in order to maintain the resonance condition, i.e., for ωC=1 / ωL to hold again, ωC needs to be reduced. With C remaining constant, the resonant frequency f needs to be reduced.

[0071] Therefore, by changing the equivalent capacitive reactance or inductive reactance of antenna 2, the resonant frequency of antenna 2 can be changed. The change in capacitance C is inversely proportional to the change in resonant frequency f of antenna 2. Therefore, when the resonant frequency f of antenna 2 is too high, to lower the resonant frequency f, the value of capacitance C needs to be increased; when the resonant frequency f of antenna 2 is too low, to raise the resonant frequency f, the value of capacitance C needs to be decreased. Similarly, the change in inductance L is inversely proportional to the change in resonant frequency f of antenna 2. Therefore, when the resonant frequency f of antenna 2 is too high, to lower the resonant frequency f, the value of inductance L needs to be increased; when the resonant frequency f of antenna 2 is too low, to raise the resonant frequency f, the value of inductance L needs to be decreased.

[0072] Assuming the wavelength of radio waves (electromagnetic waves) in a vacuum is λ0; the propagation speed of radio waves in a vacuum is V0; and the frequency of radio waves is f, then:

[0073]

[0074] When electromagnetic waves propagate in different media, the frequency remains constant, but the wavelength differs, resulting in different speeds. The speed of electromagnetic wave propagation in a vacuum is V0 ≈ 3 * 10^8 meters per second. The propagation speed in different materials is affected by the relative permittivity ε of the material.

[0075] In a material with a relative permittivity of ε, the propagation speed of electromagnetic waves is:

[0076]

[0077] The wavelength of electromagnetic waves is:

[0078]

[0079] The wavelength of electromagnetic waves in a vacuum is:

[0080]

[0081] It is evident that materials with higher relative permittivity ε exhibit shorter wavelengths of electromagnetic waves.

[0082] Taking monopole antenna 2 as an example, according to the empirical formula, the length of antenna 2 is:

[0083]

[0084] If the dielectric constant ε increases, then the propagation speed V ε Slow down, wavelength λ ε Shortening the antenna 2 corresponds to a shorter antenna 2 size L', allowing for resonance with the electromagnetic wave frequency used in communication using a smaller antenna 2. However, once the antenna 2 is manufactured, its size is fixed. With the antenna 2 size unchanged, the resonant frequency of the antenna 2 will change due to the change in the dielectric constant. If the dielectric constant ε increases, the resonant frequency f of the antenna 2 increases. To maintain resonance, adjustments are needed to lower the resonant frequency f of the antenna 2.

[0085] When the wireless switch panel is installed on the wall, antenna 2 is also close to the wall. Different wall materials have different dielectric constants, which will cause the resonant frequency of antenna 2 to shift. When the resonant frequency of antenna 2 shifts, the resonant frequency of antenna 2 can be adjusted to the ideal position by modifying the matching device of antenna 2.

[0086] Since the material of the wall surface on which the user installs the antenna cannot be specified, it is difficult to establish a fixed parameter for the matching of antenna 2. The solution of this invention is to use a switch to switch the matching network.

[0087] Although there are many different building materials, the materials for walls are relatively limited, with the most common being brick walls, reinforced concrete walls, and wooden walls.

[0088] Common wall materials such as plastic and wood have dielectric constants between 1.6 and 4, brick walls have dielectric constants between 4 and 6, and reinforced concrete walls have dielectric constants between 6 and 12.

[0089] Please see Figure 3 The present invention provides an antenna signal conditioning device, which includes a wireless communication device 1, an antenna 2, and an adaptive antenna network matching module 3.

[0090] The adaptive antenna network matching module 3 includes an inductor L, a capacitor C, and multiple sets of matching networks. Each set of matching networks includes a switch and a reactive element. The capacitor C is connected in parallel to both ends of the wireless communication device 1. One end of the inductor L is connected to one end of the wireless communication device 1. The other end of the inductor L is connected to one end of the switch in each set of matching networks and the antenna 2. The other end of the switch in each set of matching networks is connected to the other end of the wireless communication device 1 through a corresponding reactive element.

[0091] In this embodiment, three matching networks are used. The antenna signal conditioning device includes a wireless communication device 1, an antenna 2, an inductor L, a capacitor C, a first matching network 31, a second matching network 32, and a third matching network 33. The first matching network 31 includes a first switch S1 and a first reactive element X1. The second matching network 32 includes a second switch S2 and a second reactive element X2. The third matching network 33 includes a third switch S3 and a third reactive element X3.

[0092] The capacitor C is connected in parallel to both ends of the wireless communication device 1. One end of the inductor L is connected to one end of the wireless communication device 1. The other end of the inductor L is connected to one end of the first switch S1, one end of the second switch S2, one end of the third switch S3, and the antenna 2, respectively. The other end of the first switch S1 is connected to the other end of the wireless communication device 1 through the first reactance element X1. The other end of the second switch S2 is connected to the other end of the wireless communication device 1 through the second reactance element X2. The other end of the third switch S3 is connected to the other end of the wireless communication device 1 through the third reactance element X3.

[0093] Wherein, the first reactive element X1 is an inductor or a capacitor, the second reactive element X2 is an inductor or a capacitor, and the third reactive element X3 is an inductor or a capacitor.

[0094] like Figure 3The signal emitted by wireless communication device 1 is transmitted by antenna 2 after passing through adaptive antenna network matching module 3, or antenna 2 receives spatial signals and reaches wireless communication device 1 after passing through adaptive antenna network matching module 3. Adaptive antenna network matching module 3 consists of capacitor C, inductor L, switches (S1~S3) and reactive elements (X1~X3). Since the equivalent capacitive reactance or inductive reactance of antenna 2 can be changed, the resonant frequency of antenna 2 can be changed. Therefore, the resonant frequency of antenna 2 can be adjusted by using reactive elements.

[0095] Since cement, bricks, and reinforced concrete are the three most common wall materials, this application employs three sets of matching networks to address these three different wall materials. The number of matching networks can also be set according to the type of wall material, such as four, five, etc., with the specific structure depending on the specific wall material. Figure 2 Similarly, I won't go into details here.

[0096] like Figure 4 As shown, the present invention provides an antenna signal conditioning method, comprising the following steps:

[0097] Step 1: Install an adaptive antenna network matching module 3 between the wireless communication device 1 and the antenna 2;

[0098] In this embodiment, the adaptive antenna network matching module 3 includes an inductor L, a capacitor C, and multiple sets of matching networks. Each set of matching networks includes a switch and a reactive element. The capacitor C is connected in parallel to both ends of the wireless communication device 1. One end of the inductor L is connected to one end of the wireless communication device 1, and the other end of the inductor L is connected to one end of the switch in each set of matching networks and the antenna 2. The other end of the switch in each set of matching networks is connected to the other end of the wireless communication device 1 through a corresponding reactive element. By installing the adaptive antenna network matching module 3 between the wireless communication device 1 and the antenna 2, when transmitting a signal from the antenna 2 to the wireless communication device 1, the signal is first adjusted by the adaptive antenna network matching module 3; and when transmitting a signal from the wireless communication device 1 to the antenna 2, the signal is first adjusted by the adaptive antenna network matching module 3. The adaptive antenna network matching module 3 can adjust the resonant frequency of the antenna 2, improve the network quality, and thus ensure signal stability.

[0099] Step 2: Configure the number of matching network groups according to different wall materials, and install the corresponding number of matching networks on the adaptive antenna network matching module 3 to form different wall patterns;

[0100] In this embodiment, step 2 specifically includes:

[0101] Step 21: The wall materials include at least wood panels, bricks, and reinforced concrete. The number of matching network groups is configured according to the type of wall material, and the multiple matching network groups include at least three matching network groups.

[0102] Step 22: Install multiple matching networks in the adaptive antenna network matching module 3 according to the configured number of groups; the three matching networks include a first matching network 31, a second matching network 32, and a third matching network 33. The first matching network 31 includes a first switch S1 and a first reactance element X1, the second matching network 32 includes a second switch S2 and a second reactance element X2, and the third matching network 33 includes a third switch S3 and a third reactance element X3; one end of the first switch S1, one end of the second switch S2, and one end of the third switch S3 are all connected to an inductor L, the other end of the first switch S1 is connected to the wireless communication device 1 through the first reactance element X1, the other end of the second switch S2 is connected to the wireless communication device 1 through the second reactance element X2, and the other end of the third switch S3 is connected to the wireless communication device 1 through the third reactance element X3.

[0103] Step 23: Based on different wall materials, set the first matching network 31 to the wood panel wall mode, the second matching network 32 to the brick wall mode, and the third matching network 33 to the reinforced concrete wall mode. After determining the wall material, the resonant frequency of antenna 2 can be adjusted by switching the corresponding wall mode. This can be achieved simply by closing the corresponding switch. The operation is simple and the network adjustment efficiency is high.

[0104] Step 24: Set different adjustment parameters for the first reactor element X1, the second reactor element X2, and the third reactor element X3 according to different wall types.

[0105] Specifically, an adaptive antenna network matching module 3 is assembled using capacitor C, inductor L, and a matching network in the corresponding number of groups. An antenna signal conditioning device is assembled using wireless communication device 1, adaptive antenna network matching module 3, and antenna 2. The antenna signal conditioning device is installed on a wireless antenna panel, which is then installed on a wall. Therefore, the resonant frequency of antenna 2 in the wireless antenna panel will shift due to the different wall materials, affecting the network quality. Thus, it is necessary to intervene and adjust the resonant frequency of antenna 2.

[0106] Step 3: Select one set of wall patterns corresponding to the matching network as the default mode;

[0107] In this embodiment, step 3 specifically involves setting the brick wall mode as the default mode. Since the resonant frequency of antenna 2 is at a relatively ideal position under brick wall material, no switching switch is needed when the wall material is determined to be brick; however, a switching switch is required when the wall material is determined to be non-brick. Therefore, prioritizing the brick wall mode as the default mode is more reasonable. Other modes can also be set as the default mode according to user preference.

[0108] Step 4: The wireless switch panel enters the default mode;

[0109] In this embodiment, step 4 specifically includes:

[0110] Step 41: Install the first switch S1, the second switch S2 and the third switch S3 on the wireless switch panel;

[0111] Step 42: Close the second switch S2 via the wireless switch panel to enter the default mode. Mode switching can be achieved simply by opening and closing the switch; operation is straightforward.

[0112] Step 5: Connect the wireless switch panel to the gateway to obtain all communication channels;

[0113] Step 6: Divide all communication channels into high-frequency channels, intermediate-frequency channels, and low-frequency channels, and obtain the signal strength of the target high-frequency channel, the target intermediate-frequency channel, and the target low-frequency channel;

[0114] In this embodiment, step 6 specifically includes:

[0115] Step 61: Divide the resonant frequency range generated when the wireless switch panel performs wireless communication into different frequency segments according to the frequency level: high frequency segment, mid frequency segment, and low frequency segment; for example, when the resonant frequency range under communication conditions is set to 0 to 1, the range of resonant frequency in the range of 0 to 1 / 3 is set as the low frequency segment, the range of resonant frequency in the range of 1 / 3 to 2 / 3 is set as the mid frequency segment, and the range of resonant frequency in the range of 2 / 3 to 1 is set as the high frequency segment.

[0116] Step 62: Determine the frequency band based on the resonant frequencies of all communication channels;

[0117] Step 63: Divide the communication channels according to the frequency range to which the resonant frequency belongs, into high-frequency channels, medium-frequency channels and low-frequency channels. Among all communication channels, the communication channel with the resonant frequency in the high-frequency range is the high-frequency channel, the communication channel with the resonant frequency in the medium-frequency range is the medium-frequency channel, and the communication channel with the resonant frequency in the low-frequency range is the low-frequency channel.

[0118] Step 64: Select one high-frequency channel from multiple high-frequency channels as the target high-frequency channel, select one intermediate-frequency channel from multiple intermediate-frequency channels as the target intermediate-frequency channel, and select one low-frequency channel from multiple low-frequency channels as the target low-frequency channel.

[0119] Step 65: The wireless switch panel acquires the first signal strength corresponding to the target high-frequency channel, the second signal strength corresponding to the target intermediate-frequency channel, and the third signal strength corresponding to the target low-frequency channel.

[0120] For example, a WiFi device has a resonant frequency of 2402MHz to 2483MHz, divided into 14 communication channels. These 14 channels need to be divided into high, medium, and low frequency bands. First, the 2402MHz to 2483MHz frequency range is divided into three segments: high frequency, mid frequency, and low frequency. The low frequency band is 2402MHz to 2429MHz, the mid frequency band is 2429MHz to 2456MHz, and the high frequency band is 2456MHz to 2483MHz. Then, the corresponding frequency band is assigned based on the resonant frequency value of each communication channel. For example, if a communication channel has a resonant frequency of 2412MHz, located in the low frequency band, it is classified as a low-frequency channel; if a communication channel has a resonant frequency of 2442MHz, located in the mid frequency band, it is classified as a mid-frequency channel; if a communication channel has a resonant frequency of 2472MHz, located in the high frequency band, it is classified as a high-frequency channel. This process can be repeated for all communication channels. Next, from multiple high-frequency channels, the high-frequency channel with the resonant frequency closest to the center frequency of the high-frequency band (2472MHz) is selected as the target high-frequency channel. From multiple intermediate-frequency channels, the intermediate-frequency channel with the resonant frequency closest to the center frequency of the intermediate-frequency band (2442MHz) is selected as the target intermediate-frequency channel. From multiple low-frequency channels, the low-frequency channel with the resonant frequency closest to the center frequency of the low-frequency band (2412MHz) is selected as the target low-frequency channel. Then, the signal strength of the target high-frequency channel is obtained as the first signal strength, the signal strength of the target intermediate-frequency channel is obtained as the second signal strength, and the signal strength of the target low-frequency channel is obtained as the third signal strength.

[0121] This example uses a wireless switch panel with 2.4GHz Wi-Fi communication. Figure 5 These are curves showing the return loss of antenna 2 as a function of frequency for the wireless switch panel installed on a wooden wall (dashed line), a brick wall (solid line), and a reinforced concrete wall (dots). The horizontal axis represents the resonant frequency in GHz, and the vertical axis represents the return loss of antenna 2. The lower the return loss, the higher the energy radiated by antenna 2, the better the performance of antenna 2, and the stronger the signal strength received by the receiver.

[0122] As can be seen, when the brick wall is used as the initial state of antenna 2, the signal strength is strongest in the intermediate frequency channel, followed by the low and high frequencies. With the wooden wall, due to the resonant frequency shifting to lower frequencies, the signal strength of antenna 2 decreases from high to low, resulting in low frequency, intermediate frequency, and high frequency. With the concrete wall, due to the resonant frequency shifting to higher frequencies, the signal strength of antenna 2 decreases from high frequency, intermediate frequency, and low frequency. In other words, there is a certain correlation between the resonant frequency and signal strength under different wall materials. This is the basis for step 7 to determine the wall material to which antenna 2 is attached by using the signal strength magnitude.

[0123] This allows us to determine the wall material on which the wireless switch panel is installed, and then switch S1 to S3 to open or close based on the wall material, thereby adjusting the resonant frequency of antenna 2.

[0124] Step 7: Compare the signal strengths of the target high-frequency channel, the target mid-frequency channel, and the target low-frequency channel. Based on the comparison results, determine whether the current switch position corresponding to the wireless switch panel is in the optimal matching position. If so, maintain the currently used matching network and do not switch. If not, switch to another matching network for network adjustment based on the comparison results.

[0125] In this embodiment, step 7 specifically includes:

[0126] Step 71: Compare the first signal strength, the second signal strength, and the third signal strength. If the first signal strength > the second signal strength > the third signal strength, proceed to step 72. If the second signal strength > the first signal strength, the second signal strength > the third signal strength, and the first signal strength ≈ the third signal strength, proceed to step 73. If the first signal strength < the second signal strength < the third signal strength, proceed to step 74. The wireless antenna panel can identify the type of wall it is installed on by the magnitude of the first signal strength, the second signal strength, and the third signal strength.

[0127] Step 72: If it is determined that the wall material on which the wireless switch panel is installed is wood, then the dielectric constant of the wall material is low and the resonant frequency of antenna 2 is low. The second switch 2 is turned off and the first switch 1 is closed to enter the wood wall mode. The resonant frequency of antenna 2 is adjusted up by the first reactive element X1.

[0128] Step 73: If it is determined that the wall material on which the wireless switch panel is installed is brick, then the current switch position of the wireless switch panel is in the optimal matching position. Therefore, the second switch S2 is kept closed and no switching is performed.

[0129] Step 74: If it is determined that the wall material on which the wireless switch panel is installed is reinforced concrete, then the dielectric constant of the wall material is high and the resonant frequency of antenna 2 is too high. Open the second switch S2 and close the third switch S3, and lower the resonant frequency of antenna 2 through the third reactive element X3.

[0130] In this embodiment, the first reactive element X1 is an inductor or a capacitor, the second reactive element X2 is an inductor or a capacitor, and the third reactive element X3 is an inductor or a capacitor.

[0131] During operation, only the first switch S1 is closed for wooden walls; only the second switch S2 is closed for brick walls; and only the third switch S3 is closed for reinforced concrete walls. This allows for the formation of three matching networks to accommodate three different wall materials.

[0132] Example 1:

[0133] When the first reactive element X1, the second reactive element X2, and the third reactive element X3 are all inductors, and the first signal strength RSSI1 > the second signal strength RSSI2 > the third signal strength RSSI3, it is determined that the wall material is wood. Compared with a brick wall (which is closer to the ideal network state), the wood has a lower dielectric constant, and the resonant frequency of antenna 2 is also lower. Therefore, the resonant frequency of antenna 2 needs to be increased using the first reactive element X1. This can be achieved by reducing the inductance value; that is, the inductance value used in the first reactive element X1 should be less than the inductance value used in the second reactive element X2. Similarly, when the first signal strength RSSI1 < the second signal strength RSSI3, the wall material is determined to be wood. When RSSI2 is less than RSSI3, the wall material is determined to be reinforced concrete. Compared to a brick wall (which is closer to the ideal network state), reinforced concrete has a higher dielectric constant, and the resonant frequency of antenna 2 is also higher. Therefore, the resonant frequency of antenna 2 needs to be lowered by using the third reactance element X3. This can be achieved by increasing the inductance value, i.e., the inductance value used in the third reactance element X1 should be greater than the inductance value used in the second reactance element X2. In summary, when using inductance to adjust the frequency, the inductance value needs to satisfy: first reactance element X1 < second reactance element X2 < third reactance element X1. This will enable the resonant frequency adjustment function.

[0134] Example 2:

[0135] When the first reactive element X1, the second reactive element X2, and the third reactive element X3 are all capacitors, and the first signal strength RSSI1 > the second signal strength RSSI2 > the third signal strength RSSI3, it is determined that the wall material is wood. Compared with a brick wall (which is closer to the ideal network state), the wood has a lower dielectric constant, and the resonant frequency of antenna 2 is also lower. Therefore, the resonant frequency of antenna 2 needs to be increased using the first reactive element X1. This can be achieved by reducing the capacitance value; that is, the capacitance value used in the first reactive element X1 should be less than the capacitance value used in the second reactive element X2. Similarly, when the first signal strength RSSI1 < the second signal strength RSSI3, the wall material is determined to be wood. When RSSI2 is less than RSSI3, the wall material is determined to be reinforced concrete. Compared to a brick wall (which is closer to the ideal network state), reinforced concrete has a higher dielectric constant, and the resonant frequency of antenna 2 is also higher. Therefore, the resonant frequency of antenna 2 needs to be lowered by using the third reactive element X3. This can be achieved by increasing the capacitance value, i.e., the capacitance value used in the third reactive element X1 should be greater than the capacitance value used in the second reactive element X2. In summary, when using capacitors to adjust the frequency, the capacitance values ​​need to satisfy: first reactive element X1 < second reactive element X2 < third reactive element X1. This will enable the resonant frequency adjustment function.

[0136] Example 3:

[0137] When the first reactive element X1 is an inductor, the second reactive element X2 is an inductor, and the third reactive element X3 is a capacitor, and the first signal strength RSSI1 > the second signal strength RSSI2 > the third signal strength RSSI3, it is determined that the wall material is wood. Compared with a brick wall (which is closer to the ideal network state), the wood has a lower dielectric constant, and the resonant frequency of antenna 2 is also lower. Therefore, the resonant frequency of antenna 2 needs to be increased by using the first reactive element X1. This can be achieved by reducing the inductance value; that is, the inductance value used in the first reactive element X1 should be less than the inductance value used in the second reactive element X2. Similarly, when the first signal strength RSSI1 < the second signal strength RSSI2 < the third signal strength RSSI3, the wall material is determined to be a reinforced concrete wall. Compared to a brick wall (which is closer to the ideal network state), reinforced concrete has a higher dielectric constant, resulting in a higher resonant frequency for antenna 2. Therefore, the resonant frequency of antenna 2 needs to be lowered using the third reactive element X3. This can be achieved by increasing the inductance value. However, since the second and third reactive elements X2 use different reactances, the specific values ​​should be set according to the situation, ensuring that the resonant frequency of the reinforced concrete wall mode decreases after adjustment. This achieves the resonant frequency adjustment function.

[0138] Example 4:

[0139] When the first reactive element X1 is an inductor, the second reactive element X2 is a capacitor, and the third reactive element X3 is a capacitor, and the first signal strength RSSI1 > the second signal strength RSSI2 > the third signal strength RSSI3, it is determined that the wall material is wood. Compared with a brick wall (which is closer to the ideal network state), the wood has a lower dielectric constant, and the resonant frequency of antenna 2 is also lower. Therefore, the resonant frequency of antenna 2 needs to be increased using the first reactive element X1. However, since the first reactive element X1 and the second reactive element X2 use different reactances, the specific values ​​are set according to the situation to meet the requirements of the adjusted wood. The resonant frequency of the wall mode will increase. Similarly, when the first signal strength RSSI1 < the second signal strength RSSI2 < the third signal strength RSSI3, it is determined that the wall material is a reinforced concrete wall. Compared with a brick wall (which is closer to the ideal network state), the resonant frequency of antenna 2 is also higher due to the higher dielectric constant of reinforced concrete. The resonant frequency of antenna 2 needs to be lowered by the third reactive element X3. This can be achieved by increasing the value of the capacitor. That is, the capacitor value used in the third reactive element X1 should be greater than the capacitor value used in the second reactive element X2. This will enable the resonant frequency adjustment function.

[0140] Example 5:

[0141] When the first reactive element X1 is a capacitor, the second reactive element X2 is an inductor, and the third reactive element X3 is an inductor, and the first signal strength RSSI1 > the second signal strength RSSI2 > the third signal strength RSSI3, it is determined that the wall material is wood. Compared with a brick wall (which is closer to the ideal network state), the wood has a lower dielectric constant, and the resonant frequency of antenna 2 is also lower. Therefore, the resonant frequency of antenna 2 needs to be increased using the first reactive element X1. However, since the first reactive element X1 and the second reactive element X2 use different reactances, the specific values ​​are set according to the situation to meet the requirements of the adjusted wood. The resonant frequency of the wall mode will increase. Similarly, when the first signal strength RSSI1 < the second signal strength RSSI2 < the third signal strength RSSI3, it is determined that the wall material is a reinforced concrete wall. Compared with a brick wall (which is closer to the ideal network state), the resonant frequency of antenna 2 is also higher due to the higher dielectric constant of reinforced concrete. The resonant frequency of antenna 2 needs to be lowered by the third reactance element X3. This can be achieved by increasing the value of the inductance. That is, the inductance value used in the third reactance element X1 should be greater than the inductance value used in the second reactance element X2. This will enable the resonant frequency adjustment function.

[0142] Example 6:

[0143] When the first reactive element X1 is a capacitor, the second reactive element X2 is a capacitor, and the third reactive element X3 is an inductor, and given that the first signal strength RSSI1 > the second signal strength RSSI2 > the third signal strength RSSI3, the wall material is determined to be wood. Compared to a brick wall (which is closer to the ideal network state), wood has a lower dielectric constant, resulting in a lower resonant frequency for antenna 2. Therefore, the resonant frequency of antenna 2 needs to be increased using the first reactive element X1. This can be achieved by reducing the capacitance value; that is, the capacitance value of the first reactive element X1 should be smaller than that of the second reactive element X2. Similarly, when the first signal strength RSSI1 < the second signal strength RSSI2 < the third signal strength RSSI3, it is determined that the wall material is a reinforced concrete wall. Compared with a brick wall (which is closer to the ideal network state), the resonant frequency of antenna 2 is also higher due to the higher dielectric constant of reinforced concrete. It is necessary to lower the resonant frequency of antenna 2 through the third reactive element X3. However, since the first reactive element X1 and the second reactive element X2 use different reactances, the specific values ​​can be set according to the situation. The goal is to make the resonant frequency of the adjusted wooden wall mode smaller, thus realizing the resonant frequency adjustment function.

[0144] Example 7:

[0145] When the first reactive element X1 is a capacitor, the second reactive element X2 is an inductor, and the third reactive element X3 is also a capacitor, and the first signal strength RSSI1 > the second signal strength RSSI2 > the third signal strength RSSI3, the wall material is determined to be wood. Compared with a brick wall (which is closer to the ideal network state), the wood has a lower dielectric constant, and the resonant frequency of antenna 2 is also lower. Therefore, the resonant frequency of antenna 2 needs to be increased using the first reactive element X1. However, since the first reactive element X1 and the second reactive element X2 use different reactances, the specific values ​​are set according to the situation to meet the requirements of the adjusted wood wall mode. The resonant frequency will increase. Similarly, when the first signal strength RSSI1 < the second signal strength RSSI2 < the third signal strength RSSI3, it is determined that the wall material is a reinforced concrete wall. Compared with a brick wall (which is closer to the ideal network state), the resonant frequency of antenna 2 is also higher due to the higher dielectric constant of reinforced concrete. It is necessary to lower the resonant frequency of antenna 2 through the third reactance element X3. However, since the first reactance element X1 and the second reactance element X2 use different reactances, the specific values ​​can be set according to the situation. The goal is to make the resonant frequency of the adjusted wooden wall mode smaller, thus realizing the resonant frequency adjustment function.

[0146] Example 8:

[0147] When the first reactive element X1 is an inductor, the second reactive element X2 is a capacitor, and the third reactive element X3 is also an inductor, and the first signal strength RSSI1 > the second signal strength RSSI2 > the third signal strength RSSI3, the wall material is determined to be wood. Compared to a brick wall (which is closer to the ideal network state), the wood has a lower dielectric constant, and the resonant frequency of antenna 2 is also lower. Therefore, the resonant frequency of antenna 2 needs to be increased using the first reactive element X1. However, since the first reactive element X1 and the second reactive element X2 use different reactances, the specific values ​​are set according to the situation to meet the requirements of the adjusted wood wall mode. The resonant frequency will increase. Similarly, when the first signal strength RSSI1 < the second signal strength RSSI2 < the third signal strength RSSI3, it is determined that the wall material is a reinforced concrete wall. Compared with a brick wall (which is closer to the ideal network state), the resonant frequency of antenna 2 is also higher due to the higher dielectric constant of reinforced concrete. It is necessary to lower the resonant frequency of antenna 2 through the third reactance element X3. However, since the first reactance element X1 and the second reactance element X2 use different reactances, the specific values ​​can be set according to the situation. The goal is to make the resonant frequency of the adjusted wooden wall mode smaller, thus realizing the resonant frequency adjustment function.

[0148] The present invention also provides a wireless switch panel, the wireless switch panel including a wireless communication device 1 and an antenna 2, the wireless communication device 1 further including a matching unit, a detection unit and an adjustment unit; wherein, the wireless communication device 1 is communicatively connected to the antenna 2;

[0149] The matching unit is configured to divide the communication frequency of the wireless communication device 1 into multiple frequency bands, determine the frequency band it belongs to based on the minimum return loss value in the communication frequency range of the return loss variation curve between the wireless communication device and the antenna, and match it with the corresponding medium type.

[0150] The detection unit is configured to detect the frequency band in which the resonant frequency of the current antenna 2 falls within the communication frequency range;

[0151] The adjustment unit is configured to perform adaptive adjustment based on the matching result.

[0152] like Figure 6 As shown, this embodiment of the invention also provides a computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the above-described antenna signal modulation method.

[0153] Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0154] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) or processor to execute all or part of the steps of the methods of various embodiments of this invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0155] The above description is only a part of the embodiments of the present invention and does not limit the scope of protection of the present invention. Any equivalent device or equivalent process transformation made based on the content of the present invention specification and drawings, or direct or indirect application in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. An antenna signal conditioning method, characterized in that, The method, applied to a wireless switch panel including a wireless communication device and an antenna, comprises: Based on the installation of the wireless switch panel on different media types, the return loss variation curves between the wireless communication device and the antenna as a function of communication frequency were obtained respectively. The communication frequency of the wireless communication device is divided into multiple frequency bands. The frequency band where the antenna is located is determined according to the minimum return loss value in the communication frequency range of the return loss variation curve, and matched with the corresponding medium type. Detecting the frequency band within the communication frequency range where the current antenna's resonant frequency falls, and adaptively adjusting it based on the matching results, specifically including: The control signal of the wireless communication device is coupled to an adaptive antenna network matching module, which has multiple matching networks that can adapt to different media types. The corresponding matching network is selected based on the matching result, thereby adjusting the resonant frequency of the antenna.

2. The antenna signal conditioning method according to claim 1, characterized in that, The step of determining the frequency band of the antenna based on the minimum return loss value within the communication frequency range according to the return loss variation curve, and matching it with the corresponding medium type, further includes: The relative position of the antenna within the communication frequency range is determined based on the minimum return loss value, and the relative position of the frequency band within the communication frequency range is matched with the corresponding medium type.

3. The antenna signal conditioning method according to claim 1, characterized in that, The detection of the frequency band within the communication frequency range where the current antenna's resonant frequency falls specifically includes: Based on all communication channels of the wireless communication device, target communication channels for each frequency band are selected respectively. Obtain the signal strength values ​​of each of the target communication channels; The resonant frequency of the current antenna is determined within the communication frequency range based on the target communication channel with the highest signal strength value.

4. The antenna signal conditioning method according to claim 3, characterized in that, The process of selecting target communication channels for each frequency band specifically includes: The communication channel that is closest to the center frequency of each frequency band among all communication channels is taken as the target communication channel.

5. The antenna signal conditioning method according to claim 1, characterized in that, The matching network includes a switch whose electrical characteristics are adjusted by the control signal and at least one reactive element.

6. The antenna signal conditioning method according to claim 5, characterized in that, The control signal selects the corresponding reactive element by controlling the state of the multiple switches, thereby adjusting the resonant frequency of the antenna.

7. The antenna signal conditioning method according to claim 6, characterized in that, The parameters of the reactive elements in the plurality of matching networks are at least set to adapt to dielectrics with different dielectric constants. The step of selecting the corresponding matching network based on the matching result specifically includes: Based on the dielectric constant level of the dielectric type in the matching result, the control signal selects the reactive element corresponding to one path.

8. A wireless switch panel, characterized in that, The wireless switch panel includes a wireless communication device and an antenna. The wireless communication device further includes a matching unit, a detection unit, and an adjustment unit. The wireless communication device is communicatively connected to the antenna. The matching unit is configured to divide the communication frequency of the wireless communication device into multiple frequency bands, determine the frequency band where the antenna is located based on the minimum return loss value within the communication frequency range of the return loss variation curve between the wireless communication device and the antenna, and match it with the corresponding medium type. The detection unit is configured to detect the frequency band in which the current resonant frequency of the antenna falls within the communication frequency range; The adjustment unit is configured to perform adaptive adjustment based on the matching result, specifically including: The control signal of the wireless communication device is coupled to an adaptive antenna network matching module, which has multiple matching networks that can adapt to different media types. The corresponding matching network is selected based on the matching result, thereby adjusting the resonant frequency of the antenna.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the program is executed by the processor, it implements an antenna signal conditioning method as described in any one of claims 1 to 7.

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