An antenna system

Abstract

The application provides an antenna system, relates to the technical field of antennas, and can automatically detect the frequency band of a received signal and automatically switch filtering. The antenna system comprises a dipole unit, a detection unit, at least two filter units and a signal processing unit, the detection unit is electrically connected with the dipole unit and each filter unit, each filter unit is connected with the signal processing unit, and the passbands of the at least two filter units are different. The detection unit detects the target frequency band of a received signal received by the dipole unit, controls a target filter unit to be in communication with the dipole unit according to the target frequency band, and controls other filter units to be disconnected from the dipole unit. Each filter unit is used for filtering the received signal to obtain a filtered signal and sending the filtered received signal to the signal processing unit in the case of being in communication with the dipole unit. The signal processing unit performs signal enhancement processing on the received signal to obtain a television signal and sends the television signal to a television set.

Description

Technical Field

[0001] This application relates to the field of antenna technology, and more particularly to an antenna system. Background Technology

[0002] Currently, television transmitters in different regions broadcast television programs on corresponding frequency bands based on local communication frequency bands (e.g., frequency bands supporting 4G or 5G communication). Based on these different communication frequency bands, television antenna systems also incorporate filters for those bands to filter the signals received by the antennas and obtain the appropriate television signal.

[0003] However, existing antenna systems often incorporate filters for a single frequency band, such as 4G or 5G filters. Users need to select and purchase an appropriate antenna system based on the local communication frequency bands. Purchasing the wrong system can affect television signal reception, thus impacting the playback quality of television programs. For example, if 4G communication is supported locally, and the user chooses an antenna system with a 5G filter, some television programs on certain frequency bands will be unwatchable due to being filtered out by the 5G filter. Conversely, if 5G communication is supported locally, and the user chooses an antenna system with a 4G filter, interference signals on certain frequency bands will not be filtered out, affecting television signal reception. Summary of the Invention

[0004] In view of this, embodiments of this application provide an antenna system that can automatically detect the frequency band of the received signal and automatically switch the corresponding filtering unit, thereby improving the reception effect of television signals.

[0005] In a first aspect, embodiments of this application provide an antenna system, including: a vibrating element, a detection unit, a signal processing unit, and at least two filtering units. The detection unit is electrically connected to the vibrating element and each filtering unit, and each filtering unit is connected to the signal processing unit. The passbands of the at least two filtering units are different.

[0006] The detection unit is used to detect the target frequency band of the received signal received by the oscillator unit, and control the target filter unit to connect with the oscillator unit according to the target frequency band, and control the other filter units in at least two filter units, except for the target filter unit, to disconnect from the oscillator unit. The passband of the target filter unit is the target frequency band.

[0007] Each filtering unit is used to filter the received signal received by the oscillator unit when connected to the oscillator unit, obtain a filtered signal, and send the filtered signal to the signal processing unit;

[0008] The signal processing unit is used to perform signal enhancement and power matching processing on the received filtered signal to obtain a television signal, and then send the television signal to the television set.

[0009] Optionally, the filtering unit includes a first electronic switch and a first filter. The first electronic switch is connected to the oscillator unit, the input terminal of the first filter, and the detection unit, respectively. The output terminal of the first filter is connected to the input terminal of the signal processing unit.

[0010] The detection unit is configured to send a conduction control signal to the first electronic switch when the passband of the filter unit is the target frequency band, so as to control the first electronic switch to conduct the connection between the oscillator unit and the first filter; and to send a cut-off control signal to the first electronic switch when the passband of the filter unit is not the target frequency band, so as to control the first electronic switch to disconnect the connection between the oscillator unit and the first filter.

[0011] Optionally, the filtering unit also includes a second electronic switch, which is connected to the output of the first filter, the input of the signal processing unit, and the detection unit, respectively.

[0012] The detection unit is further configured to send a conduction control signal to the second electronic switch when the passband of the filter unit is the target frequency band, so as to control the second electronic switch to conduct the connection between the signal processing unit and the first filter; and to send a shutdown control signal to the second electronic switch when the passband of the filter unit is not the target frequency band, so as to control the second electronic switch to disconnect the connection between the signal processing unit and the first filter.

[0013] Optionally, the detection unit includes a filtering module, a decoder, and a processing module. The input of the filtering module is connected to the oscillator unit, the output of the filtering module is connected to the input of the decoder, the output of the decoder is connected to the processing module, and the processing module is connected to each electronic switch in each filtering unit.

[0014] The filtering module is used to filter and amplify the received signal to obtain a processed signal, and then send the processed signal to the decoder.

[0015] The decoder is used to decode the processed signal to obtain the transport stream TS, and then send the TS to the processing module;

[0016] The processing module is used to determine the target frequency band of the received signal based on the TS, and send a turn-on control signal to each electronic switch in the target filtering unit and a turn-off control signal to each electronic switch in other filtering units based on the target frequency band.

[0017] Optionally, at least two filtering units include a first filtering unit and a second filtering unit, and the filtering module includes a detection filter. The passband of the detection filter is a non-overlapping frequency band between the passband of the first filtering unit and the passband of the second filtering unit, and the passband of the second filtering unit includes the passband of the first filtering unit.

[0018] The target frequency band for the received signal is determined based on the TS, including:

[0019] If television program data exists in TS, then the target frequency band is determined to be the passband of the second filtering unit;

[0020] If there is no television program data in TS, then the target frequency band is determined to be the passband of the first filtering unit.

[0021] Optionally, the detection unit also includes a third electronic switch, which is connected to the input terminal of the filter module, the oscillator unit, and the processing module respectively.

[0022] The processing module also sends a conduction control signal to the third electronic switch to control the third electronic switch to conduct the connection between the oscillator unit and the filter module, and sends a shutdown control signal to the third electronic switch to control the third electronic switch to disconnect the connection between the oscillator unit and the filter module.

[0023] Optionally, the detection unit also includes a fourth electronic switch, which is connected to the input of the decoder, the output of the filter module, and the processing module, respectively.

[0024] The processing module also sends a conduction control signal to the fourth electronic switch to control the fourth electronic switch to conduct the connection between the filter module and the decoder, and sends a shutdown control signal to the fourth electronic switch to control the fourth electronic switch to disconnect the connection between the filter module and the decoder.

[0025] Optionally, the processing module includes a processing chip and a button assembly. The processing chip is connected to the output of the decoder, each button assembly, and each electronic switch in the plurality of functional units. The plurality of functional units include a detection unit and at least two filtering units.

[0026] The processing chip is used to determine the target frequency band of the received signal based on the TS sent by the decoder, and to send a turn-on control signal to each electronic switch in the target filter unit and a turn-off control signal to each electronic switch in other filter units based on the target frequency band.

[0027] The processing chip is also used to control the on / off state of each electronic switch in the multiple functional units according to the key control signals sent by the key assembly.

[0028] Optionally, the processing module also includes indicator lights that correspond one-to-one with multiple functional units, and the processing chip is connected to each indicator light.

[0029] The processing chip is also used to illuminate the indicator light corresponding to the first functional unit when each electronic switch in the first functional unit is turned on. The first functional unit is any one of multiple functional units.

[0030] Optionally, the oscillator unit includes a first oscillator module and a second oscillator module;

[0031] The first oscillator module is used to send the received signal to at least two filter units;

[0032] The second oscillator module is used to send the received signal to the detection unit.

[0033] The beneficial effects of the embodiments in this application compared with the prior art are:

[0034] The antenna system provided in this application adds a detection unit and sets up at least two filtering units. The detection unit automatically detects the frequency band of the received signal received by the vibrating element and controls the filtering unit corresponding to the frequency band of the received signal to connect with the vibrating element. This allows the antenna system to automatically switch filtering units based on different communication frequency bands, ensuring the antenna system's reception of television signals and improving the user experience. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this application, 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 this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a schematic diagram of the structure of an antenna provided in an embodiment of this application;

[0037] Figure 2 This is a schematic diagram of another antenna structure provided in an embodiment of this application;

[0038] Figure 3 This is a schematic diagram of another antenna structure provided in the embodiments of this application;

[0039] Figure 4 This is a schematic diagram of another antenna structure provided in the embodiments of this application;

[0040] Figure 5 This is a schematic diagram of the field structure of the TS output by the decoder provided in the embodiments of this application;

[0041] Figure 6 This is a schematic diagram of another antenna structure provided in the embodiments of this application;

[0042] Figure 7 This is a schematic diagram of another antenna structure provided in the embodiments of this application;

[0043] Figure 8 This is a schematic diagram of another antenna structure provided in the embodiments of this application;

[0044] Figure 9 This is a schematic diagram of another antenna structure provided in the embodiments of this application. Detailed Implementation

[0045] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application can also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0046] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0047] In this application, unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0048] It should be understood that, when used in this application specification and the appended claims, the term "comprising" indicates the presence of the described features, integrals, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or a collection thereof.

[0049] It should also be understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0050] As used in this application specification and the appended claims, the term "if" may be interpreted, depending on the context, as "when," "once," "in response to determination," or "in response to detection." Similarly, the phrase "if determined" or "if detected [the described condition or event]" may be interpreted, depending on the context, as meaning "once determined," "in response to determination," "once detected [the described condition or event]," or "in response to detection [the described condition or event]."

[0051] References to "one embodiment" or "some embodiments" in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized.

[0052] Finally, it should be noted that the terms “comprising,” “including,” or any other variations are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device, without excluding the presence of other identical elements in the process, method, article, or terminal device that includes said elements.

[0053] Therefore, this application provides an antenna system capable of automatically detecting the frequency band of the received signal and automatically switching the filter. This avoids the inconvenience caused by users manually replacing the antenna system and improves the user experience.

[0054] See Figure 1 The present invention provides a schematic diagram of the structure of an antenna system, including: a vibrating element 1, a detection unit 2, a signal processing unit 4, and at least two filtering units 3. The detection unit 2 is electrically connected to the vibrating element 1 and each filtering unit 3, and each filtering unit 3 is connected to the signal processing unit 4. The passbands of the at least two filtering units 3 are different.

[0055] The detection unit 2 is used to detect the target frequency band of the received signal received by the oscillator unit 1, and control the target filter unit to connect with the oscillator unit 1 according to the target frequency band, and control the other filter units in at least two filter units 3, except for the target filter unit, to disconnect from the oscillator unit 1.

[0056] In this embodiment of the application, the target filtering unit is the filtering unit 3 with the passband of the target frequency band among at least two filtering units 3.

[0057] Each filtering unit 3 is used to filter the received signal received by the oscillator unit 1 when connected to the oscillator unit 1, obtain a filtered signal, and send the filtered signal to the signal processing unit 4.

[0058] The signal processing unit 4 is used to perform signal enhancement and power matching processing on the received filtered signal to obtain a television signal, and then send the television signal to the television set.

[0059] The signal processing unit 4 may include an amplifier circuit and a matching unit. The amplifier circuit may be any circuit that enhances the filtered signal, and the matching unit may be any matching unit that can perform impedance matching so that the antenna system has the maximum radiated power. This application does not limit the specific matching unit.

[0060] For example, at least two filtering units 3 may include a 4G filtering unit and a 5G filtering unit. For instance, assuming the 4G communication frequency band is 470-790MHz, the passband of the 4G filtering unit is 470-790MHz. The 4G filtering unit can filter out interference signals outside the 470-790MHz frequency band in the received signal, retaining the effective signal within the 470-790MHz frequency band. For ease of description, the effective signal filtered by the 4G filtering unit will be referred to as the 4G signal. Similarly, assuming the 5G communication frequency band is 470-700MHz, the passband of the 5G filtering unit is 470-700MHz. The 5G filtering unit can filter out interference signals outside the 470-700MHz frequency band in the received signal, retaining the effective signal within the 470-700MHz frequency band. For ease of description, the effective signal filtered by the 5G filtering unit will be referred to as the 5G signal.

[0061] When detection unit 2 detects that the target frequency band is a 4G communication band, the target filtering unit becomes a 4G filtering unit. Detection unit 2 controls the 4G filtering unit to connect with the transducer unit 1 and controls the 5G filtering unit to disconnect from the transducer unit 1. The received signal received by transducer unit 1 can be transmitted to the 4G filtering unit, which filters the received signal to obtain a 4G signal, which is then transmitted to signal processing unit 4. This allows signal processing unit 4 to obtain the complete television signal transmitted within the 4G communication band from the 4G signal, preventing the 5G filtering unit from filtering out the effective signal transmitted in the 700-790MHz frequency band from the received signal.

[0062] When detection unit 2 detects that the target frequency band is a 5G communication band, the target filtering unit becomes a 5G filtering unit. Detection unit 2 controls the 5G filtering unit to connect with the transducer unit 1 and controls the 4G filtering unit to disconnect from the transducer unit 1. The received signal received by transducer unit 1 can be transmitted to the 5G filtering unit, which filters the received signal to obtain a 5G signal, which is then transmitted to signal processing unit 4. This allows signal processing unit 4 to obtain the complete television signal transmitted within the 5G communication band from the 5G signal, avoiding the 4G filtering unit retaining interference signals transmitted in the 700-790MHz band in the received signal, which could interfere with the television signal.

[0063] In summary, the antenna system provided in this application adds a detection unit and includes at least two filtering units. The detection unit automatically detects the frequency band of the received signal received by the vibrating element and controls the connection between the filtering unit corresponding to the received signal's frequency band and the vibrating element. This allows the antenna system to automatically switch filtering units based on different communication frequency bands, ensuring the antenna system's reception of television signals and improving the user experience.

[0064] In one example, the filtering unit includes a first electronic switch and a first filter. The first electronic switch is connected to the oscillator unit 1, the input terminal of the first filter, and the detection unit 2, respectively. The output terminal of the first filter is connected to the input terminal of the signal processing unit 4.

[0065] The detection unit 2 is configured to send a conduction control signal to the first electronic switch when the passband of the filter unit is the target frequency band, so as to control the first electronic switch to conduct the connection between the oscillator unit 1 and the first filter; and to send a cut-off control signal to the first electronic switch when the passband of the filter unit is not the target frequency band, so as to control the first electronic switch to disconnect the connection between the oscillator unit 1 and the first filter.

[0066] For example, at least two filtering units 3 may include a 4G filtering unit and a 5G filtering unit, such as... Figure 2The diagram shown is a schematic representation of another antenna structure provided in this application embodiment. The 4G filtering unit includes an electronic switch 301 and a 4G filter 302, and the 5G filtering unit includes an electronic switch 303 and a 5G filter 304. Specifically, electronic switches 301 and 303 are the first electronic switches in the 4G and 5G filtering units, respectively, and 4G filters 302 and 5G filters 304 are the first filters in the 4G and 5G filtering units, respectively.

[0067] For example, when the detection unit 2 detects that the target frequency band of the received signal is the 4G communication frequency band, i.e., the target filtering unit is the 4G filtering unit, it sends a conduction control signal to the electronic switch 301 in the 4G filtering unit to control the electronic switch 301 to conduct the connection between the oscillator unit 1 and the 4G filter 302. At the same time, the detection unit 2 sends a shutdown control signal to the electronic switch 303 in the 5G filtering unit to control the electronic switch 303 to disconnect the connection between the oscillator unit 1 and the 5G filter 304.

[0068] When the detection unit 2 detects that the target frequency band of the received signal is the 5G communication band, i.e., the target filtering unit is the 5G filtering unit, it sends a conduction control signal to the electronic switch 303 in the 5G filtering unit to control the electronic switch 303 to conduct the connection between the oscillator unit 1 and the 5G filter 304. At the same time, the detection unit 2 sends a shutdown control signal to the electronic switch 301 in the 4G filtering unit to control the electronic switch 301 to disconnect the connection between the oscillator unit 1 and the 4G filter 302.

[0069] Optionally, the filtering unit 3 also includes a second electronic switch, which is connected to the output terminal of the first filter, the input terminal of the signal processing unit 4, and the detection unit 2, respectively.

[0070] The detection unit 2 is also configured to send a conduction control signal to the second electronic switch when the passband of the filter unit 3 is the target frequency band, so as to control the second electronic switch to conduct the connection between the signal processing unit 4 and the first filter; and to send a shutdown control signal to the second electronic switch when the passband of the filter unit 3 is not the target frequency band, so as to control the second electronic switch to disconnect the connection between the signal processing unit 4 and the first filter.

[0071] It is understandable that when the passband of filter unit 3 is the target frequency band (i.e., filter unit 3 is the target filter unit), detection unit 2 synchronously controls the first and second electronic switches in filter unit 3 to be turned on, and synchronously controls all electronic switches in other filter units 3 to be turned off.

[0072] In this embodiment, a second electronic switch is provided between the first filter and the signal processing unit 4 to control the on / off state between them. Therefore, by disconnecting the second electronic switch between the first filter and the signal processing unit 4 in other filtering units 3, the echo signal generated between the first filter and the signal processing unit 4 in other filtering units 3 can be effectively prevented from interfering with the signal transmission between the first filter and the signal processing unit 4 in the target filtering unit, thus ensuring the stability of the filtered signal transmission.

[0073] For example, based on Figure 2 ,like Figure 3 The diagram shown is a structural schematic of another antenna system provided in this application. The 4G filtering unit further includes an electronic switch 305, which is connected to the output terminal of the 4G filter, the input terminal of the signal processing unit 4, and the detection unit 2. The 5G filtering unit further includes an electronic switch 306, which is connected to the output terminal of the 5G filter, the input terminal of the signal processing unit 4, and the detection unit 2.

[0074] When the detection unit 2 detects that the target frequency band of the received signal is the 4G communication band, it sends a conduction control signal to the electronic switches 301 and 305 in the 4G filtering unit. This simultaneously controls electronic switch 301 to connect the oscillator unit 1 to the 4G filter 302, and controls electronic switch 305 to connect the 4G filter 302 to the signal processing unit 4. At the same time, it sends a shutdown control signal to the electronic switches 303 and 306 in the 5G filtering unit to control electronic switch 303 to disconnect the oscillator unit 1 from the 5G filter 304, and controls electronic switch 306 to disconnect the 5G filter 304 from the signal processing unit 4.

[0075] In one example, the detection unit 2 includes a filtering module, a decoder, and a processing module. The input of the filtering module is connected to the oscillator unit 1, the output of the filtering module is connected to the input of the decoder, the output of the decoder is connected to the processing module, and the processing module is connected to each electronic switch in each filtering unit 3.

[0076] The filtering module is used to filter and amplify the received signal to obtain a processed signal, which is then sent to the decoder.

[0077] The decoder is used to decode the signal to obtain a transport stream (TS) and send the TS to the processing module.

[0078] In the embodiments of this application, the decoder can be any decoder capable of decoding the signal received by the oscillator unit 1 and obtaining TS, such as the MXL692 decoder, the D3004K decoder, etc. This application does not limit the type of decoder.

[0079] The processing module is used to determine the target frequency band of the received signal according to TS, and send a turn-on control signal to each electronic switch in the target filter unit 3 and a turn-off control signal to each electronic switch in the other filter units 3 according to the target frequency band.

[0080] For example, based on Figure 3 ,like Figure 4 The diagram shown is a structural schematic of another antenna system provided in this application. The detection unit 2 includes a filtering module 201, a decoder 202, and a processing module 203. The output terminal of the processing module 203 is connected to electronic switches 301 and 305 in the 4G filtering unit, and also to electronic switches 303 and 306 in the 5G filtering unit.

[0081] Assuming that when processing module 203 determines the target frequency band of the received signal to be the 4G communication band based on TS, the processing module sends conduction control signals to electronic switches 301 and 305, simultaneously controlling electronic switch 301 to conduct the connection between the oscillator unit 1 and the 4G filter 302, and controlling electronic switch 305 to conduct the connection between the 4G filter 302 and the signal processing unit 4. At the same time, it sends shutdown control signals to electronic switches 303 and 306 in the 5G filtering unit, controlling electronic switch 303 to disconnect the connection between the oscillator unit 1 and the 5G filter 304, and controlling electronic switch 306 to disconnect the connection between the 5G filter 304 and the signal processing unit 4.

[0082] In one example, at least two filter units 3 include a first filter unit and a second filter unit, and the filter module includes a detection filter. The passband of the detection filter is a non-overlapping frequency band between the passband of the first filter unit and the passband of the second filter unit, and the passband of the second filter unit includes the passband of the first filter unit.

[0083] Accordingly, the method by which the processing module 203 determines the target frequency band of the received signal based on the TS may include:

[0084] If television program data exists in TS, then the target frequency band is determined to be the passband of the second filtering unit.

[0085] If there is no television program data in TS, then the target frequency band is determined to be the passband of the first filtering unit.

[0086] For example, the field structure of the TS output by decoder 202 can be as follows: Figure 5 As shown, each TS has 188 bytes of fields, including a header and payload. The header includes an 8-bit synchronization byte (0x47), a 1-bit transmission error indicator, a 1-bit payload unit start indicator, a 1-bit transmission priority, a 13-bit packet identification number (PID), a 2-bit transmission scrambling control, a 2-bit adaptive field control, a 4-bit continuous counter, and an adaptive field.

[0087] Based on the field structure of TS, there are multiple ways to determine whether TV program data exists in TS.

[0088] In one example, the presence of television program data in the TS can be determined based on the length of bytes traversed between finding two consecutive synchronization bytes (0x47). For instance, processing module 203 records fields of the TS output by decoder 202 that are more than twice 204 bytes. Processing module 203 then searches for the synchronization byte (0x47) in the fields of the recorded TS. If the synchronization byte (0x47) is found again after 188 bytes, it is determined that television program data exists in the TS.

[0089] Digital signals often experience bit errors during transmission due to various reasons, resulting in image skipping, discontinuity, and pixelation at the receiving end. Error correction coding can be added to the TS to achieve error detection and correction at the receiving end. The error correction coding commonly used in digital television typically employs forward error correction (FEC) coding with two additional error correction codes. Reed-solomon (RS) coding is a first type of FEC coding. If the TS field is encoded with RS, it will add 16 empty packets or scrambling codes, becoming 204 bytes.

[0090] Regardless of whether the TS field is RS encoded, after finding the synchronization byte (0x47), if the synchronization byte (0x47) is found after 188 bytes, it can be determined whether there is TV program data in the TS.

[0091] Optionally, the presence of television program data can also be determined by detecting the presence of a PID in the TS. If the processing module 203 detects a PID in the TS, it determines that television program data exists; if the processing module 203 does not detect a PID in the TS, it determines that television program data does not exist.

[0092] For example, in one possible implementation, processing module 203 parses the Program Association Table (PAT) from the TS output by decoder 202 and finds the corresponding Program Map Tables (PMT) based on the PAT. Processing module 203 determines whether television program data exists by checking whether the PMT contains a PID. If the PMT contains a PID, then television program data exists; if the PMT does not contain a PID, then television program data does not exist.

[0093] The above two methods of judgment are merely illustrative examples. Other methods may also be used to determine whether television program data exists in TS. This application does not limit the method by which the processing module 203 determines whether television program data exists in TS.

[0094] For example, such as Figure 4 As shown, the second filtering unit can be a 4G filtering unit, and the first filtering unit can be a 5G filtering unit. If the passband of the 4G filtering unit is 470-790MHz and the passband of the 5G filtering unit is 470-700MHz, and the passband of the 4G filtering unit includes the passband of the 5G filtering unit, then the passband of the detection filter is the non-overlapping frequency band between the passbands of the 4G and 5G filtering units, that is, the passband of the detection filter is the 700-790MHz frequency band.

[0095] In this example, after the detection filter obtains the processed signal in the 700-790MHz frequency band, the processed signal is sent to the decoder 202 to decode it into the corresponding TS. The processing module 203 can then determine whether there is television program data in the TS. If so, it indicates that the television signal is a 4G signal, and the received signal received by the oscillator unit 1 needs to be filtered by the 4G filter 302. The processing module 203 then sends conduction control signals to the electronic switches 301 and 305 in the 4G filter unit to obtain a complete television signal within the 4G communication frequency band. At the same time, it sends shutdown control signals to the electronic switches 303 and 306 in the 5G filter unit to prevent the 5G filter unit from filtering out the television signal transmitted through the 700-790MHz frequency band.

[0096] If the processing module 203 determines that there is no television program data in the TS, it means that the television signal is a 5G signal. The received signal received by the oscillator unit 1 needs to be filtered by the 5G filter 304. The processing module 203 then sends a conduction control signal to the electronic switches 303 and 306 in the 5G filter unit to obtain the television signal transmitted within the 5G communication frequency band and avoid interference from signals outside the 5G communication frequency band. At the same time, the processing module 203 sends a shutdown control signal to the electronic switches 301 and 305 in the 4G filter unit to avoid interference from interference signals transmitted in the 700-790MHz frequency band that the 4G filter unit cannot filter.

[0097] In one example, the detection unit 2 also includes a third electronic switch, which is connected to the input terminal of the filter module 201, the oscillator unit 1 and the processing module 203 respectively.

[0098] The processing module 203 also sends a conduction control signal to the third electronic switch to control the third electronic switch to conduct the connection between the oscillator unit 1 and the filter module 201, and sends a cut-off control signal to the third electronic switch to control the third electronic switch to disconnect the connection between the oscillator unit 1 and the filter module 201.

[0099] For example, based on Figure 4 ,like Figure 6 The diagram shown is a structural schematic of another antenna system provided in this application. The third electronic switch 204 is connected to the filter module 201, the vibrator unit 1, and the processing module 203, respectively.

[0100] Assuming that when processing module 203 needs to determine the target frequency band of the received signal, it sends a conduction control signal to the third electronic switch 204, simultaneously controlling the third electronic switch 204 to conduct the connection between the oscillator unit 1 and the filter module 201. At the same time, it sends a shutdown control signal to electronic switches 301 and 305 in the 4G filter unit, controlling electronic switch 301 to disconnect the connection between the oscillator unit 1 and the 4G filter 302, and controlling electronic switch 305 to disconnect the connection between the 4G filter 302 and the signal processing unit 4. It also sends a shutdown control signal to electronic switches 303 and 306 in the 5G filter unit, controlling electronic switch 303 to disconnect the connection between the oscillator unit 1 and the 5G filter 304, and controlling electronic switch 306 to disconnect the connection between the 5G filter 304 and the signal processing unit 4.

[0101] In one example, the detection unit 2 further includes a fourth electronic switch, which is connected to the input of the decoder 202, the output of the filter module 201, and the processing module 203, respectively.

[0102] The processing module 203 also sends a conduction control signal to the fourth electronic switch to control the fourth electronic switch to conduct the connection between the filter module 201 and the decoder 202, and sends a shutdown control signal to the fourth electronic switch to control the fourth electronic switch to disconnect the connection between the filter module 201 and the decoder 202.

[0103] For example, based on Figure 6 ,like Figure 7 The diagram shown is a structural schematic of another antenna system provided in this application. The fourth electronic switch 205 is connected to the output of the filter module 201, the input of the decoder 202, and the processing module 203, respectively.

[0104] Assuming that when processing module 203 needs to determine the target frequency band of the received signal, it sends conduction control signals to the third electronic switch 204 and the fourth electronic switch 205, simultaneously controlling the third electronic switch 204 to conduct the connection between the oscillator unit 1 and the filter module 201, and controlling the fourth electronic switch 205 to conduct the connection between the filter module 201 and the decoder 202. Simultaneously, it sends shutdown control signals to the electronic switches 301 and 305 in the 4G filter unit, controlling the electronic switch 301 to disconnect the connection between the oscillator unit 1 and the 4G filter 302, and controlling the electronic switch 305 to disconnect the connection between the 4G filter 302 and the signal processing unit 4; and sends shutdown control signals to the electronic switches 303 and 306 in the 5G filter unit, controlling the electronic switch 303 to disconnect the connection between the oscillator unit 1 and the 5G filter 304, and controlling the electronic switch 306 to disconnect the connection between the 5G filter 304 and the signal processing unit 4.

[0105] In this embodiment, a fourth electronic switch 205 is provided between the filtering module 201 and the decoder 202 to control the connection and disconnection between them. Therefore, by disconnecting the fourth electronic switch 205 between the filtering module 201 and the decoder 202 in the detection unit 2, the echo signal generated between the filtering module 201 and the decoder 202 in the detection unit 2 can be effectively prevented from interfering with the signal transmission between the first filter in the target filtering unit and the signal processing unit 4, thus ensuring the stability of the filtered signal transmission.

[0106] In one example, the antenna system provided in this application can also be equipped with a button component to provide manual control functionality. For example, based on Figure 7 ,like Figure 8As shown, the processing module includes a processing chip 2031 and a button assembly 2032. The processing chip 2031 is connected to the output of the decoder 202, the button assembly 2032, and each electronic switch in the plurality of functional units. The plurality of functional units include a detection unit 2 and at least two filtering units 3.

[0107] The processing chip 2031 is used to determine the target frequency band of the received signal based on the TS sent by the decoder 202, and send a turn-on control signal to each electronic switch in the target filtering unit and a turn-off control signal to each electronic switch in the other filtering units based on the target frequency band.

[0108] The processing chip 2031 is also used to control the on / off state of each electronic switch in the multiple functional units according to the key control signal sent by the key assembly 2032.

[0109] For example, the processing chip 2031 can be an STM32 microcontroller, CH32F microcontroller, STC89 microcontroller, AT89S51 microcontroller, STC89C52 microcontroller, etc. This application does not limit the type of processing chip 2031.

[0110] The button assembly 2032 is used to send keying signals to the processing chip 2031 in response to user operation commands. The button assembly 2032 may include a control button, and when the user presses the control button, the button assembly 2032 can send a keying signal to the processing chip 2031.

[0111] In one example, the button component 2032 may include an auto-detection button and a toggle button. When the user presses the auto-detection button, the button component 2032 responds to the user's operation command and sends an auto-detection signal to the processing chip 2031. The processing chip 2031 then controls the detection unit to perform signal detection based on the auto-detection signal.

[0112] For example, when a user presses the automatic detection button, the button assembly 2032 sends an automatic detection signal to the processing chip 2031. After receiving the automatic detection signal from the button assembly 2032, the processing chip 2031 sends conduction control signals to the third electronic switch 204 and the fourth electronic switch 205 according to the received automatic detection signal. At the same time, the processing chip 2031 also sends shutdown control signals to the electronic switches 301, 305, 303 and 306 according to the received automatic detection signal, that is, simultaneously shutting down the 4G filter unit and the 5G filter unit.

[0113] When the automatic detection button is pressed, the processing chip 2031 sends a conduction control signal to all electronic switches corresponding to the detection unit and simultaneously sends a shutdown control signal to all electronic switches corresponding to all filter units to avoid interference from the filter units to the detection unit.

[0114] Optionally, the filtering unit can continue to operate while the detection unit is working, without interrupting the reception of the television signal.

[0115] When the user clicks the switch button, the button component 2032 responds to the user's operation command and sends a switching filter signal to the processing chip 2031. After receiving the switching filter signal, the processing chip 2031 switches the filter unit.

[0116] For example, when the current antenna is in 5G working state (i.e., the 5G filter unit is in the conducting state), if the user presses the switching button, the processing chip 2031 responds to the user's input switching filter command by sending a conduction control signal to the electronic switches 301 and 305 in the 4G filter unit; at the same time, it sends a shutdown control signal to the electronic switches 303, 306, the third electronic switch 204, and the fourth electronic switch 205, that is, simultaneously shutting down the detection unit and the 5G filter unit, switching the 5G filter unit to the 4G filter unit, so that the antenna switches to the state where the 4G filter 302 is working. When the user presses the switching button again, the processing chip 2031 responds to the user's input switching filter command by sending a conduction control signal to the electronic switches 303 and 306 in the 5G filtering unit; at the same time, it sends a shutdown control signal to the electronic switches 301, 305, the third electronic switch 204, and the fourth electronic switch 205, that is, simultaneously shutting down the detection unit and the 4G filtering unit, switching the 4G filtering unit to the 5G filtering unit, so that the antenna switches back to the state where the 5G filter 304 is working.

[0117] In one example, the button assembly 2032 may also include control buttons corresponding one-to-one with multiple functional units. When the user presses different control buttons, the button assembly 2032 responds to the user's operation command by sending a conduction control signal to each electronic switch in the filter unit corresponding to the user's operation command. For example, when the user presses the automatic detection button in the button assembly 2032, the button assembly sends an automatic detection signal to the processing chip 2031. After receiving the automatic detection signal sent by the button assembly, the processing chip 2031 sends conduction control signals to the third electronic switch 204 and the fourth electronic switch 205 according to the received automatic detection signal. At this time, while the detection unit is working, the filter unit is also continuing to work, and the television signal is being received normally.

[0118] The forms of control buttons in the above two button components 2032 are merely illustrative examples, and other forms may also be used. This application does not limit the form of control buttons in button components 2032.

[0119] Understandably, when a user is unsure whether the local signal is 4G or 5G, they can press the automatic detection button to allow the antenna system to automatically detect the frequency band of the received signal and switch filters accordingly. When the user knows whether the local signal is 4G or 5G, they can directly switch to the corresponding filtering unit by pressing the control button in the button assembly 2032.

[0120] In one example, the processing module also includes indicator lights that correspond one-to-one with multiple functional units, and the processing chip 2031 is connected to each indicator light.

[0121] The processing chip 2031 is also used to illuminate the indicator light corresponding to the first functional unit when each electronic switch in the first functional unit is turned on, wherein the first functional unit is any one of the multiple functional units.

[0122] In this embodiment of the application, the oscillator unit 1 may include an ultra-high frequency (UHF) oscillator.

[0123] In this example, when the processing chip 2031 sends an on control signal to each electronic switch in a certain functional unit, it simultaneously sends an off control signal to each electronic switch in other functional units besides the functional unit. That is, one unit is working while the other functional units are not working, and the oscillator unit 1 sends the received signal to the functional unit that is turned on.

[0124] For example, such as Figure 1 As shown, when the user clicks the detection button, the oscillator unit 1 connects to the detection unit 2 and sends the received signal to the detection unit 2; when the detection unit 2 controls the target filter unit to connect with the oscillator unit 1 according to the target frequency band, the oscillator unit 1 communicates with the target filter unit and sends the received signal to the target filter unit.

[0125] Optionally, oscillator unit 1 may also include two UHF oscillators.

[0126] For example, such as Figure 9 As shown, the oscillator unit 1 may include a first oscillator module 101 and a second oscillator module 102. The first oscillator module 101 is connected to the filter unit 3, and the second oscillator module 102 is connected to the detection unit 2.

[0127] The first oscillator module 101 is used to send the received signal to at least two filter units 3.

[0128] The second oscillator module 102 is used to send the received signal to the detection unit 2.

[0129] When there are two UHF oscillators in oscillator unit 1, the detection unit 2 can maintain the working state of the filter unit 3 during detection, thereby ensuring that the reception of the TV signal is not interrupted.

[0130] For example, when the antenna is currently in 5G operating mode (i.e., the first vibrator module 101 and the 5G filter unit are in a conductive state), the user presses the automatic detection button in the button assembly 2032, and the second vibrator module 102 and the detection unit 2 are in a conductive state. The detection unit 2 detects the received signal received by the second vibrator module 102. During the detection process, the first vibrator module 101 and the 5G filter unit remain in a conductive state. If the detection unit 2 detects that the target frequency band of the received signal sent by the second vibrator module 102 is the 5G filter band, then the detection unit 2 does not send a shutdown control signal or a turn-on control signal, so that the first vibrator module 101 and the 5G filter unit continue to maintain a conductive state. Alternatively, the detection unit 2 sends a turn-on control signal to each electronic switch in the 5G filter unit and a turn-off control signal to each electronic switch in the 4G filter unit, so that the first vibrator module 101 and the 5G filter unit continue to maintain a conductive state.

[0131] If the detection unit 2 detects that the target frequency band of the received signal sent by the second oscillator module 102 is the 4G filter band, the detection unit 2 sends a conduction control signal to each electronic switch in the 4G filter unit and a shutdown control signal to each electronic switch in the 5G filter unit, so that the first oscillator module 101 is disconnected from the 5G filter unit and connected to the 4G filter unit, thereby switching the 5G working state to the 4G working state.

[0132] The antenna system provided based on the above embodiments has the following advantages:

[0133] (1) The antenna system provided in this application embodiment can automatically detect the frequency band of the received signal and automatically switch the filter, thereby avoiding interference of mobile communication signals to broadcast television signals.

[0134] (2) The antenna system provided in this application embodiment can automatically switch filters and also manually adjust filters, combining the features of automatic detection and manual detection, which can improve the user experience.

[0135] Finally, it should be noted that the above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An antenna system, characterized in that, include: The system comprises an oscillator unit, a detection unit, a signal processing unit, and at least two filtering units, wherein the detection unit is electrically connected to the oscillator unit and each of the filtering units, and each of the filtering units is connected to the signal processing unit, and the passbands of at least two of the filtering units are different. The detection unit is used to detect the target frequency band of the received signal received by the oscillator unit, and control the target filtering unit to connect with the oscillator unit according to the target frequency band, and control the other filtering units among at least two filtering units except the target filtering unit to disconnect from the oscillator unit, wherein the passband of the target filtering unit is the target frequency band; The detection unit includes a filtering module, a decoder, and a processing module. The input terminal of the filtering module is connected to the oscillator unit, the output terminal of the filtering module is connected to the input terminal of the decoder, the output terminal of the decoder is connected to the processing module, and the processing module is connected to each of the filtering units. The filtering module is used to filter and amplify the received signal to obtain a processed signal, and then send the processed signal to the decoder. The decoder is used to decode the processed signal to obtain a transport stream TS, and send the TS to the processing module; The processing module is configured to determine the target frequency band of the received signal based on the TS, and send a turn-on control signal to the target filtering unit and a turn-off control signal to the other filtering units based on the target frequency band. Each of the filtering units is configured to filter the received signal received by the oscillator unit when connected to the oscillator unit, obtain a filtered signal, and send the filtered signal to the signal processing unit; The signal processing unit is used to perform signal enhancement and power matching processing on the received filtered signal to obtain a television signal, and then send the television signal to the television set.

2. The antenna system according to claim 1, characterized in that, The filtering unit includes a first electronic switch and a first filter. The first electronic switch is connected to the oscillator unit, the input terminal of the first filter, and the detection unit, respectively. The output terminal of the first filter is connected to the input terminal of the signal processing unit. The detection unit is configured to send the conduction control signal to the first electronic switch when the passband of the filter unit is the target frequency band, so as to control the first electronic switch to conduct the connection between the oscillator unit and the first filter; and to send the shutdown control signal to the first electronic switch when the passband of the filter unit is not the target frequency band, so as to control the first electronic switch to disconnect the connection between the oscillator unit and the first filter.

3. The antenna system according to claim 2, characterized in that, The filtering unit further includes a second electronic switch, which is connected to the output terminal of the first filter, the input terminal of the signal processing unit, and the detection unit, respectively. The detection unit is further configured to send the conduction control signal to the second electronic switch when the passband of the filter unit is the target frequency band, so as to control the second electronic switch to conduct the connection between the signal processing unit and the first filter; and to send the shutdown control signal to the second electronic switch when the passband of the filter unit is not the target frequency band, so as to control the second electronic switch to disconnect the connection between the signal processing unit and the first filter.

4. The antenna system according to claim 2 or 3, characterized in that, The processing module is connected to each electronic switch in each of the filtering units; The processing module is configured to send the turn-on control signal to each electronic switch in the target filtering unit and the turn-off control signal to each electronic switch in the other filtering units, according to the target frequency band.

5. The antenna system according to claim 4, characterized in that, At least two of the filtering units include a first filtering unit and a second filtering unit. The filtering module includes a detection filter. The passband of the detection filter is a non-overlapping frequency band between the passband of the first filtering unit and the passband of the second filtering unit. The passband of the second filtering unit includes the passband of the first filtering unit. Determining the target frequency band of the received signal based on the TS includes: If television program data exists in the TS, then the target frequency band is determined to be the passband of the second filtering unit; If the TV program data is not present in the TS, then the target frequency band is determined to be the passband of the first filtering unit.

6. The antenna system according to claim 4, characterized in that, The detection unit also includes a third electronic switch, which is connected to the input terminal of the filter module, the oscillator unit, and the processing module, respectively. The processing module also sends the conduction control signal to the third electronic switch to control the third electronic switch to conduct the connection between the oscillator unit and the filter module, and sends the shutdown control signal to the third electronic switch to control the third electronic switch to disconnect the connection between the oscillator unit and the filter module.

7. The antenna system according to claim 6, characterized in that, The detection unit further includes a fourth electronic switch, which is connected to the input terminal of the decoder, the output terminal of the filtering module, and the processing module, respectively. The processing module also sends the conduction control signal to the fourth electronic switch to control the fourth electronic switch to conduct the connection between the filter module and the decoder, and sends the shutdown control signal to the fourth electronic switch to control the fourth electronic switch to disconnect the connection between the filter module and the decoder.

8. The antenna system according to claim 6 or 7, characterized in that, The processing module includes a processing chip and a button assembly. The processing chip is connected to the output of the decoder, the button assembly, and each electronic switch in the plurality of functional units. The plurality of functional units include the detection unit and at least two filtering units. The processing chip is configured to determine the target frequency band of the received signal based on the TS sent by the decoder, and send the turn-on control signal to each electronic switch in the target filtering unit and the turn-off control signal to each electronic switch in the other filtering units based on the target frequency band. The processing chip is also used to control the on / off state of each electronic switch in the plurality of functional units according to the key control signal sent by the key assembly.

9. The antenna system according to claim 8, characterized in that, The processing module also includes indicator lights that correspond one-to-one with the plurality of functional units, and the processing chip is connected to each of the indicator lights; The processing chip is also used to illuminate an indicator light corresponding to the first functional unit when each electronic switch in the first functional unit is turned on, wherein the first functional unit is any one of the plurality of functional units.

10. The antenna system according to any one of claims 1-3, characterized in that, The oscillator unit includes a first oscillator module and a second oscillator module; The first oscillator module is used to send the received signal to at least two of the filtering units; The second oscillator module is used to send the received signal to the detection unit.

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