A high frequency antenna system and working method thereof

Abstract

The present invention relates to the technical field of antenna systems, and specifically to a high-frequency antenna system and a working method thereof. Through the integrated design of the system and the automatic adjustment mechanism, the problem of insufficient frequency adjustment system in the prior art is effectively solved, adaptive response to complex environments is achieved, and signal reception quality and communication stability of the system are improved. During the adjustment process, the working frequency of an RFID identification module is first adjusted to achieve a signal quality that meets the requirements, and then the working frequency of a multi-band antenna body is adjusted to a target frequency that meets the requirements, thereby avoiding multiple adjustments that lead to a reduction in the communication quality of the multi-band antenna body and the occurrence of abnormal operation.

Description

Technical Field

[0001] The present invention relates to the technical field of antenna systems, and more particularly to a high-frequency antenna system and a working method thereof. Background Art

[0002] With the continuous development of wireless communication technology, the requirements for frequency band utilization and signal transmission quality are getting higher and higher. Especially in complex electromagnetic environments, how to effectively identify connected devices and adjust signal frequencies accordingly to ensure the stability and reliability of communication has become a hot research issue;

[0003] In the prior art, although multi-band antenna systems can cover a wider frequency range, they often lack the necessary automatic adjustment mechanism, resulting in reduced signal quality and communication interruption when the electromagnetic environment changes. In small exhibition halls, RFID tags are often installed on protective exhibits or security monitoring facilities, and RFID communication is used to achieve identification, tracking and management. The antenna communicates with the communication device with the RFID tag to view information such as location status, but when there are multiple wireless devices around, such as exhibitors' mobile phones, cameras and other wireless devices, the interference between them will also significantly affect the communication performance, and the antenna's operating frequency cannot be adjusted in real time according to the actual effective connection requirements of the device. Therefore, it is of great significance to develop a high-frequency antenna system that can monitor environmental signals in real time and adaptively adjust the operating frequency. Summary of the invention

[0004] In view of the deficiencies in the prior art, an object of the present invention is to provide a high-frequency antenna system and a working method thereof to solve the problems existing in the above-mentioned background technology.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: a multi-band antenna body, comprising a plurality of radiating units; the radiating units adopt a microstrip antenna structure and can operate within the frequency band range of 900MHz to 5GHz; an RFID identification module, used to identify, detect and analyze other wireless device signals in the surrounding electromagnetic environment; the RFID identification module is arranged on the multi-band antenna body; an intelligent control unit, used to collect data from the RFID identification module, analyze signal strength and interference, and automatically adjust the operating frequency of the radiating unit according to the analysis results; the intelligent control unit is arranged on the system terminal; the intelligent control unit is respectively communicated with the multi-band antenna body and the RFID identification module.

[0006] Optionally, the multi-band antenna body includes: an antenna shell, a fixing bracket for fixing the antenna shell, an antenna substrate and a feeding network for transmitting signals to several of the radiating units; the antenna substrate is arranged in the antenna shell; the fixing bracket is detachably connected to the antenna shell; several of the radiating units are arranged on the antenna substrate; the radiating unit adopts a microstrip patch structure; a dielectric layer is arranged between the microstrip patch and the antenna substrate to reduce radiation loss and improve radiation efficiency; the feeding network is arranged on the antenna substrate; the feeding network is electrically connected to the radiating unit and the intelligent control unit respectively; the feeding network transmits the signal to several of the radiating units in the form of a microstrip line or a stripline; the feeding network uses a single feeding or a distributed feeding method to achieve effective excitation of different frequency bands.

[0007] Optionally, the RFID identification module includes: a plurality of RFID readers; the plurality of RFID readers are arranged on the antenna substrate; the plurality of RFID readers are electrically connected to the feeding network and the intelligent control unit respectively.

[0008] Optionally, the intelligent control unit includes: a data processing module, which is used to receive signal data transmitted by the RFID identification module and analyze the signal strength and interference; a frequency adjustment module, which calculates the optimal operating frequency based on the collected data and analysis results, and generates adjustment instructions; the data processing module is communicatively connected to the RFID identification module; and the frequency adjustment module is communicatively connected to the RFID identification module and the multi-band antenna body respectively.

[0009] Optionally, the intelligent control unit further includes: an adaptive learning module; the adaptive learning module optimizes the frequency adjustment algorithm through historical signal data to adapt to interference-free operation in different environments.

[0010] A working method of a high frequency antenna system based on the above high frequency antenna system, comprising:

[0011] Step A: Scan the environment where the multi-band antenna body is located through the RFID identification module, detect the RFID tags in the surrounding environment, and obtain and record the signal strength and frequency information emitted by the surrounding wireless devices;

[0012] Step B: transmitting the acquired RFID data and signal information to the intelligent control unit in real time via wireless connection;

[0013] Step C: The intelligent control unit analyzes the data collected in step B and evaluates the signal quality of the current operating frequency, including signal strength, noise level and interference level, to determine whether frequency adjustment is required;

[0014] Step D: If it is determined that the signal quality of the current operating frequency is poor or encounters severe interference, the intelligent control unit sends an instruction to the adjustment mechanism to adjust the operating frequency of the RFID identification module to a new target frequency, and the new target frequency is selected based on a preset frequency database or real-time analysis results;

[0015] Step E: Continuously monitor the signal quality at the new target frequency and return it to the intelligent control unit through feedback signals to verify the performance of the new frequency band; if the signal quality meets expectations, the adjustment mechanism is triggered to adjust the operating frequency of the multi-band antenna body to the new target frequency; if the signal quality still does not meet the requirements, repeat steps C to E accordingly to form a closed-loop feedback mechanism.

[0016] Optionally, the step A further comprises:

[0017] Start the RFID identification module and set the scanning frequency range , =900 MHz~5GHz;

[0018] The RFID recognition module transmits signals, receives response signals from nearby RFID tags, and collects the signal strength of each responding RFID tag. and frequency information , ,in is an indication of the strength of the RFID tag, It is the corresponding frequency information of the RFID tag;

[0019] The RFID identification module creates a signal database, which stores the information of each detected RFID tag, including ID, signal strength and frequency. ,in .

[0020] Optionally, the step C further comprises:

[0021] After receiving the data from the RFID identification module, the intelligent control unit selects the valid devices connected to the RFID identification module and analyzes the signal quality through the data processing module: the signal strength and noise level of the signal data are analyzed. and interference intensity ;

[0022] The signal quality is calculated by the formula , and the signal quality at this time is obtained and by setting the threshold Make comparisons;

[0023] like , it is determined that the frequency needs to be adjusted; if , it is determined that there is no need to adjust the frequency; Expressed as the minimum signal quality required for the system to operate under normal operating conditions.

[0024] Optionally, the step D further comprises:

[0025] The frequency adjustment module uses the preset frequency database Select a new target frequency in , through the control command signal, trigger the adjustment mechanism to change the working frequency of the RFID recognition module to .

[0026] Optionally, the step E also includes:

[0027] After changing the operating frequency of the RFID recognition module, monitor the signal quality after the change ,Will Transmitted to the data processing and analysis module, through If , then return to step C; if , then the adjustment mechanism is triggered to adjust the operating frequency of the multi-band antenna body to the target frequency , the working frequency adjustment of the multi-band antenna main body is completed.

[0028] In summary, the present invention has the following beneficial effects:

[0029] 1. Through the integrated design and automated adjustment mechanism of the system, the problem of insufficient frequency adjustment system in the existing technology is effectively solved, adaptive response to complex environments is achieved, and the signal reception quality and communication stability of the system are improved.

[0030] 2. During the adjustment process, the operating frequency of the RFID identification module is adjusted first to achieve the required signal quality, and then the operating frequency of the multi-band antenna body is adjusted to the required target frequency to avoid multiple adjustments that may cause the communication quality of the multi-band antenna body to decrease and cause abnormal operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a flow chart of the method steps of the present invention;

[0032] Figure 2 It is a principle diagram of the method for adjusting the frequency of antenna operation of the system of the present invention. DETAILED DESCRIPTION

[0033] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings. Several embodiments of the present invention are shown in the accompanying drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. The terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0035] In the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, the first feature being "above", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature. The terms "vertical", "horizontal", "left", "right", "above", "below" and similar expressions are for illustrative purposes only, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0036] The present invention is described in detail below in conjunction with the accompanying drawings and embodiments.

[0037] The present invention provides a high frequency antenna system and a working method thereof, such as Figure 1As shown, the multi-band antenna body includes a plurality of radiating units; the radiating units adopt a microstrip antenna structure and can operate in the frequency band range of 900MHz to 5GHz; an RFID identification module is used to identify, detect and analyze other wireless device signals in the surrounding electromagnetic environment; the RFID identification module is arranged on the multi-band antenna body; an intelligent control unit is used to collect data from the RFID identification module, analyze signal strength and interference, and automatically adjust the operating frequency of the radiating unit according to the analysis results; the intelligent control unit is arranged on the system terminal; the intelligent control unit is respectively communicated with the multi-band antenna body and the RFID identification module.

[0038] Specifically, a multi-band antenna body has multiple radiating units deployed on it, each radiating unit is specially optimized to transmit and receive signals of a specific frequency, so the working frequency can be adjusted individually according to the actual connected device. The RFID recognition module is integrated with the antenna body to identify the signals of other wireless devices in the surrounding environment in real time; the intelligent control unit can optimize and adjust the working frequency of each radiating unit according to the signal data identified by the RFID recognition module to achieve better communication quality;

[0039] In embodiment 1, there are several wireless devices within the coverage range of the antenna system, and the optimal frequencies adapted to each wireless device are different. The RFID identification module and the intelligent control unit are used to identify and detect the working frequency of each wireless device under the best communication quality. The intelligent control unit adjusts the working frequencies of several radiation units on the multi-band antenna body one by one to achieve the best working condition.

[0040] Furthermore, the multi-band antenna body includes: an antenna housing, a fixing bracket for fixing the antenna housing, an antenna substrate and a feeding network for transmitting signals to several of the radiating units; the antenna substrate is arranged in the antenna housing; the fixing bracket is detachably connected to the antenna housing; several of the radiating units are arranged on the antenna substrate; the radiating unit adopts a microstrip patch structure; a dielectric layer is arranged between the microstrip patch and the antenna substrate to reduce radiation loss and improve radiation efficiency; the feeding network is arranged on the antenna substrate; the feeding network is electrically connected to the radiating unit and the intelligent control unit respectively; the feeding network transmits the signal to several of the radiating units in the form of a microstrip line or a stripline; the feeding network uses a single feeding or distributed feeding feeding method to achieve effective excitation of different frequency bands.

[0041] Specifically, the outer shell of the antenna body is made of weather-resistant material and fixed by a fixed bracket; the feeding network is embedded in the antenna substrate, and the feeding network is designed to flexibly support multiple microstrip lines connected to the radiation unit; in order to achieve efficient radiation, each radiation unit adopts a microstrip patch structure, and the dielectric layer separates the microstrip chip from the antenna substrate, effectively reducing the radiation loss of electromagnetic waves.

[0042] Furthermore, the RFID identification module includes: a plurality of RFID readers; the plurality of RFID readers are arranged on the antenna substrate; the plurality of RFID readers are electrically connected to the feeding network and the intelligent control unit respectively.

[0043] Specifically, the RFID identification module includes multiple RFID readers, which are integrated at different positions of the antenna substrate; each RFID reader is electrically connected to the feeding network and the intelligent control unit, so that the reader can independently obtain the signal of the nearby RFID tag and transmit the data to the intelligent control unit for subsequent analysis and processing.

[0044] Furthermore, the intelligent control unit includes: a data processing module, which is used to receive the signal data transmitted by the RFID identification module and analyze the signal strength and interference; a frequency adjustment module, which calculates the optimal operating frequency based on the collected data and analysis results and generates adjustment instructions; the data processing module is communicatively connected to the RFID identification module; and the frequency adjustment module is communicatively connected to the RFID identification module and the multi-band antenna body respectively.

[0045] Specifically, the data processing module receives signal data transmitted from the RFID identification module. The data processing module uses a preset algorithm to analyze the received signal strength and interference conditions, calculates the current signal quality, and evaluates whether frequency adjustment is required.

[0046] Furthermore, the intelligent control unit also includes: an adaptive learning module; the adaptive learning module optimizes the frequency adjustment algorithm through historical signal data to adapt to interference-free work in different environments.

[0047] Specifically, the frequency adjustment strategy is optimized based on the historical signal data of the device and using a machine learning algorithm; if a specific frequency works better in a specific environment, the system can record and give priority to this frequency as the operating frequency, thereby improving the adaptive adjustment capability.

[0048] A working method of a high frequency antenna system based on the above high frequency antenna system, comprising:

[0049] Step A: Scan the environment where the multi-band antenna body is located through the RFID identification module, detect the RFID tags in the surrounding environment, and obtain and record the signal strength and frequency information emitted by the surrounding wireless devices;

[0050] In the specific implementation process, the RFID tag is set on the effective connection device within the coverage range of the antenna system; the RFID identification module is started and the scanning frequency range is set , =900 MHz~5GHz; the frequency range is the same as the operating frequency of the multi-band antenna body to facilitate adjustment;

[0051] The RFID recognition module transmits signals, receives response signals from nearby RFID tags, and collects the signal strength of each responding RFID tag. and frequency information , ,in is an indication of the strength of the RFID tag, It is the corresponding frequency information of the RFID tag; for example, the signal strength of the RFID tag with ID "Tag1" in the 3.2GHz frequency band is -45dBm, and the RFID identification module stores this information in the signal database;

[0052] The RFID identification module creates a signal database, which stores the information of each detected RFID tag, including ID, signal strength and frequency. ,in The signal database is created on the RAM server to facilitate timely query of the recorded information of each device and to facilitate future review and audit.

[0053] Step B: transmitting the acquired RFID data and signal information to the intelligent control unit in real time via wireless connection;

[0054] Specifically, a wireless (such as Wi-Fi, Bluetooth) transmission method is selected, and a suitable communication protocol is selected to ensure low-latency data transmission. The collected data is formatted into JSON, XML and other formats for transmission to facilitate parsing; the data is sent to the intelligent control unit through the selected communication channel.

[0055] Step C: The intelligent control unit analyzes the data collected in step B and evaluates the signal quality of the current operating frequency, including signal strength, noise level and interference level, to determine whether frequency adjustment is required;

[0056] Specifically, after receiving the data sent by the RFID identification module, the intelligent control unit screens out the valid devices connected to the RFID identification module, and analyzes the signal quality through the data processing module: the signal strength and noise level of the signal data are analyzed. and interference intensity ;

[0057] The signal quality is calculated by the formula , and the signal quality at this time is obtained and by setting the threshold Make comparisons;

[0058] like , indicating that the current signal quality is not good enough, which may cause communication failure or poor quality, and it is judged that the frequency needs to be adjusted; if , indicating that the current frequency is working normally, it is determined that there is no need to adjust the frequency; Expressed as the minimum signal quality required for the system to operate under normal operating conditions; Dynamic adjustments can be made based on actual experience data or through experiments to reduce frequency adjustments caused by slight fluctuations in signal quality and prevent unnecessary resource consumption and potential connection instability caused by frequent frequency switching of the system.

[0059] Noise Level Refers to the intensity of background noise in the current environment. Noise will reduce the effectiveness of the signal and affect the identifiability of the signal; interference intensity Refers to the loss of signal quality due to interference from other signal sources (such as signals on adjacent channels, other wireless devices, etc.).

[0060] Step D: If it is determined that the signal quality of the current operating frequency is poor or encounters severe interference, the intelligent control unit sends an instruction to the adjustment mechanism to adjust the operating frequency of the RFID identification module to a new target frequency, and the new target frequency is selected based on a preset frequency database or real-time analysis results;

[0061] Specifically, the frequency adjustment module uses a preset frequency database Select a new target frequency in , through the control command signal, trigger the adjustment mechanism to change the working frequency of the RFID recognition module to ; The data range is 900 MHz~5GHz, which is in line with the operating frequency range of the RFID identification module;

[0062] Step E: Continuously monitor the signal quality at the new target frequency and return the feedback signal to the intelligent control unit to verify the performance of the new frequency band; if the signal quality meets the expectations, trigger the adjustment mechanism to adjust the operating frequency of the multi-band antenna body to the new target frequency; if the signal quality still does not meet the requirements, repeat steps C to E accordingly to form a closed-loop feedback mechanism;

[0063] Specifically, after changing the operating frequency of the RFID recognition module, the signal quality after the change is monitored. ,Will Transmitted to the data processing and analysis module, through If , then return to step C; if , then the adjustment mechanism is triggered to adjust the operating frequency of the multi-band antenna body to the target frequency , the working frequency adjustment of the multi-band antenna main body is completed.

[0064] A high-frequency antenna system and a working method thereof of the present invention effectively solve the problem of insufficient frequency adjustment system in the prior art through the integrated design of the system and the automatic adjustment mechanism, realize adaptive response to complex environments, and improve the signal reception quality and communication stability of the system; in the adjustment process, the working frequency of the RFID identification module is first adjusted to achieve the required signal quality, and then the working frequency of the multi-band antenna body is adjusted to the required target frequency, so as to avoid the communication quality of the multi-band antenna body being reduced due to multiple adjustments and the occurrence of abnormal operation.

[0065] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A high frequency antenna system, characterized in that: include: The multi-band antenna body comprises a plurality of radiating units; the radiating units adopt a microstrip antenna structure and can operate in the frequency range of 900 MHz to 5 GHz; An RFID identification module, used for identifying, detecting and analyzing other wireless device signals in the surrounding electromagnetic environment; the RFID identification module is arranged on the multi-band antenna body; An intelligent control unit, used to collect data from the RFID identification module, analyze signal strength and interference, and automatically adjust the operating frequency of the radiation unit according to the analysis results; the intelligent control unit is arranged on the system terminal; the intelligent control unit is respectively connected to the multi-band antenna body and the RFID identification module for communication; The multi-band antenna body comprises: an antenna housing, a fixing bracket for fixing the antenna housing, an antenna substrate and a feeding network for transmitting signals to a plurality of the radiation units; The antenna substrate is arranged in the antenna housing; the fixing bracket is detachably connected to the antenna housing; A plurality of the radiation units are arranged on the antenna substrate; the radiation unit adopts a microstrip patch structure; a dielectric layer is arranged between the microstrip patch and the antenna substrate to reduce radiation loss and improve radiation efficiency; The feeding network is arranged on the antenna substrate; the feeding network is electrically connected to the radiating units and the intelligent control unit respectively; the feeding network transmits signals to several of the radiating units in the form of microstrip lines or strip lines; the feeding network uses a single feeding or distributed feeding method to achieve effective excitation of different frequency bands.

2. A high frequency antenna system according to claim 1, characterized in that: The RFID identification module includes: a plurality of RFID readers; A plurality of the RFID readers are arranged on the antenna substrate; and the plurality of the RFID readers are electrically connected to the feeding network and the intelligent control unit respectively.

3. A high frequency antenna system according to claim 1, characterized in that: The intelligent control unit comprises: A data processing module, used to receive the signal data transmitted by the RFID identification module and analyze the signal strength and interference; The frequency adjustment module calculates the optimal operating frequency based on the collected data and analysis results, and generates adjustment instructions; The data processing module is communicatively connected to the RFID identification module; the frequency adjustment module is communicatively connected to the RFID identification module and the multi-band antenna body respectively.

4. A high frequency antenna system according to claim 3, characterized in that: The intelligent control unit also includes: an adaptive learning module; the adaptive learning module optimizes the frequency adjustment algorithm through historical signal data to adapt to interference-free operation in different environments.

5. A working method of the high frequency antenna system according to any one of claims 1 to 4, characterized in that: include: Step A: Scan the environment where the multi-band antenna body is located through the RFID identification module, detect the RFID tags in the surrounding environment, and obtain and record the signal strength and frequency information emitted by the surrounding wireless devices; Step B: transmitting the acquired RFID data and signal information to the intelligent control unit in real time via wireless connection; Step C: The intelligent control unit analyzes the data collected in step B and evaluates the signal quality of the current operating frequency, including signal strength, noise level and interference level, to determine whether frequency adjustment is required; Step D: If it is determined that the signal quality of the current operating frequency is poor or encounters severe interference, the intelligent control unit sends an instruction to the adjustment mechanism to adjust the operating frequency of the RFID identification module to a new target frequency, and the new target frequency is selected based on a preset frequency database or real-time analysis results; Step E: Continuously monitor the signal quality at the new target frequency and return it to the intelligent control unit through feedback signals to verify the performance of the new frequency band; if the signal quality meets expectations, the adjustment mechanism is triggered to adjust the operating frequency of the multi-band antenna body to the new target frequency; if the signal quality still does not meet the requirements, repeat steps C to E accordingly to form a closed-loop feedback mechanism.

6. A method for operating a high frequency antenna system according to claim 5, characterized in that: The step A also includes: Start the RFID identification module and set the scanning frequency range , =900 MHz~5GHz; The RFID recognition module transmits signals, receives response signals from nearby RFID tags, and collects the signal strength of each responding RFID tag. and frequency information , ,in is an indication of the strength of the RFID tag, It is the corresponding frequency information of the RFID tag; The RFID identification module creates a signal database, which stores the information of each detected RFID tag, including ID, signal strength and frequency. ,in .

7. The working method of a high frequency antenna system according to claim 5, characterized in that: The step C also includes: After receiving the data from the RFID identification module, the intelligent control unit selects the valid devices connected to the RFID identification module and analyzes the signal quality through the data processing module: the signal strength of the signal data is analyzed. , Noise Level and interference intensity ; The signal quality is calculated by the formula , and the signal quality at this time is obtained and by setting the threshold Make comparisons; like , it is determined that the frequency needs to be adjusted; if , it is determined that there is no need to adjust the frequency; Expressed as the minimum signal quality required for the system to operate under normal operating conditions.

8. The working method of a high frequency antenna system according to claim 5, characterized in that: The step D also includes: The frequency adjustment module uses the preset frequency database Select a new target frequency in , through the control command signal, trigger the adjustment mechanism to change the working frequency of the RFID identification module to .

9. The working method of a high frequency antenna system according to claim 7, characterized in that: The step E also includes: After changing the operating frequency of the RFID recognition module, monitor the signal quality after the change ,Will Transmitted to the data processing and analysis module, through If the comparison , then return to step C; if , then the adjustment mechanism is triggered to adjust the operating frequency of the multi-band antenna body to the target frequency , the working frequency adjustment of the multi-band antenna main body is completed.

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