Device for preventing antenna mismatch in intelligent frequency selection system

Abstract

The utility model belongs to the technical field of wireless communication, and discloses a device for preventing antenna mismatch in an intelligent frequency selection system, which comprises an intelligent frequency selection processor, a signal generating and transmitting device, a signal receiving and analyzing device, a signal strength detection module, a control module, an alarm module, a communication interface module and a power supply module, the signal generating and sending device, the signal receiving and analyzing device, the signal strength detection module, the alarm module, the communication interface module and the power supply module are all electrically connected with the control module, and the intelligent frequency selection processor is in communication connection with the signal generating and sending device and the signal strength detection module. According to the utility model, whether the antenna is mismatched or not is detected before intelligent frequency selection, so that normal operation of the intelligent frequency selection system is ensured, frequency selection errors caused by antenna mismatching are avoided, and the reliability and stability of the system are improved.

Description

Technical Field

[0001] This utility model belongs to the field of wireless communication technology, and in particular relates to a device for preventing antenna mismatch in an intelligent frequency selection system. Background Technology

[0002] In intelligent frequency selection systems, node devices scan the surrounding electromagnetic environment within a set operating frequency band and select the frequency point or band with the least interference as the operating frequency point or band. However, in practical applications, external antenna mismatch can lead to an inaccurate electromagnetic environment scanned by the node device, resulting in frequency selection errors and causing the node device to operate abnormally. For example, if the node device's operating frequency band is 1400MHz~1500MHz, but the antenna's frequency band is 1450MHz~1550MHz, the antenna cannot cover the entire operating frequency band of the node device, resulting in antenna mismatch. Therefore, there is an urgent need for a device capable of detecting antenna mismatch to ensure the effective operation of the intelligent frequency selection system. Utility Model Content

[0003] The purpose of this invention is to provide a device for preventing antenna mismatch in an intelligent frequency selection system, so as to solve the above-mentioned technical problems.

[0004] To achieve the above objectives, the specific technical solution of this utility model for a device to prevent antenna mismatch in an intelligent frequency selection system is as follows:

[0005] A device for preventing antenna mismatch in an intelligent frequency selection system includes an intelligent frequency selection processor, a signal generation and transmission device, a signal receiving and analysis device, a signal strength detection module, a control module, an alarm module, a communication interface module, and a power supply module; the signal generation and transmission device, the signal receiving and analysis device, the signal strength detection module, the alarm module, the communication interface module, and the power supply module are all electrically connected to the control module, and the intelligent frequency selection processor is communicatively connected to the signal generation and transmission device and the signal strength detection module;

[0006] The intelligent frequency selection processor is used to determine the operating frequency point or frequency band set of the node device;

[0007] The signal generation and transmission device is used to sequentially select frequency bands within the operating frequency band of the node device and transmit radio frequency signals of a certain strength.

[0008] The signal receiving and parsing device is used to receive radio frequency signals in the corresponding frequency band;

[0009] The signal strength detection module is used to determine whether the antenna is mismatched based on the strength of the received signal.

[0010] The control module is used to control the operation of the signal generation and transmission device and the signal receiving and parsing device, and to determine whether the antenna is mismatched based on the detection results of the signal strength detection module.

[0011] Furthermore, the signal generation and transmission device includes a frequency synthesizer and a power amplifier; the frequency synthesizer is used to generate radio frequency signals in different frequency bands, and the power amplifier is used to amplify the radio frequency signals to a certain intensity.

[0012] Furthermore, the signal receiving and parsing device includes a low-noise amplifier and a mixer; the low-noise amplifier is used to amplify the received radio frequency signal, and the mixer is used to convert the received radio frequency signal into an intermediate frequency signal.

[0013] Furthermore, the signal strength detection module includes a detector and an analog-to-digital converter; the detector is used to detect the strength of the received signal, and the analog-to-digital converter is used to convert the analog signal into a digital signal.

[0014] Furthermore, the control module includes a microprocessor and a memory; the microprocessor is used to control the operation of the signal generation and transmission device and the signal receiving and parsing device, and the memory is used to store the detection results and preset thresholds.

[0015] Furthermore, the device also includes an alarm module; the alarm module is used to issue an alarm signal when the antenna mismatch occurs.

[0016] Furthermore, the alarm module includes LED indicator lights and a buzzer.

[0017] Furthermore, the device also includes a communication interface module; the communication interface module is used to transmit the detection results to an external device.

[0018] Furthermore, the communication interface module is an RS232 interface, a USB interface, or a wireless communication module.

[0019] Furthermore, the device also includes a power module; the power module is used to provide power to the entire device.

[0020] The present invention provides a device for preventing antenna mismatch in an intelligent frequency selection system, which has the following advantages: By adding an antenna mismatch detection device to the intelligent frequency selection system, the present invention can detect whether the antenna is mismatched before the start of intelligent frequency selection, thereby ensuring the normal operation of the intelligent frequency selection system, avoiding frequency selection errors caused by antenna mismatch, and improving the reliability and stability of the system. Attached Figure Description

[0021] Figure 1 This is a structural block diagram of the present invention;

[0022] Figure 2 This is a flowchart illustrating the process of this utility model. Detailed Implementation

[0023] To better understand the purpose, structure, and function of this utility model, the following detailed description, in conjunction with the accompanying drawings, provides a device for preventing antenna mismatch in an intelligent frequency selection system.

[0024] like Figure 1 As shown, the device of this utility model includes an intelligent frequency selective processor, a signal generating and transmitting device, a signal receiving and parsing device, a signal strength detection module, a control module, an alarm module, a communication interface module, and a power supply module. The signal generating and transmitting device, the signal receiving and parsing device, the signal strength detection module, the alarm module, the communication interface module, and the power supply module are all electrically connected to the control module, and the intelligent frequency selective processor is communicatively connected to the signal generating and transmitting device and the signal strength detection module.

[0025] The intelligent frequency selection processor is used to determine the operating frequency or set of frequency bands of the node device. The signal generation and transmission device is used to sequentially select frequency bands within the operating frequency band of the node device and transmit radio frequency signals of a certain strength. The signal receiving and parsing device is used to receive radio frequency signals. The signal strength detection module is used to determine whether the antenna is mismatched based on the strength of the received signal. The control module is used to control the operation of the signal generation and transmission device and the signal receiving and parsing device. The alarm module is used to issue an alarm signal when the antenna is mismatched. The communication interface module is used to transmit the detection results to external devices. The power supply module is used to provide power to the entire device.

[0026] Specifically, the signal generation and transmission device includes a frequency synthesizer and a power amplifier; the frequency synthesizer is used to generate radio frequency signals in different frequency bands, and the power amplifier is used to amplify the radio frequency signals to a certain intensity.

[0027] The signal receiving and parsing device includes a low-noise amplifier and a mixer; the low-noise amplifier is used to amplify the received radio frequency signal, and the mixer is used to convert the received radio frequency signal into an intermediate frequency signal.

[0028] The signal strength detection module includes a detector and an analog-to-digital converter; the detector is used to detect the strength of the received signal, and the analog-to-digital converter is used to convert the analog signal into a digital signal.

[0029] The control module includes a microprocessor and a memory; the microprocessor is used to control the operation of the signal generation and transmission device and the signal receiving and parsing device, and the memory is used to store the detection results and preset thresholds.

[0030] The alarm module includes LED indicators and a buzzer.

[0031] The communication interface module can be an RS232 interface, a USB interface, or a wireless communication module.

[0032] Working principle: Before intelligent frequency selection begins, the control module controls the signal generation and transmission device to sequentially select frequency bands within the operating frequency band and transmit radio frequency signals of a certain strength. The signal receiving and parsing device receives the radio frequency signals of the corresponding frequency bands, and the signal strength detection module determines whether the antenna is mismatched based on the strength of the received signal. If the strength of the received signal is lower than a preset threshold, it is determined that the antenna is mismatched, and the control module issues an alarm signal through the alarm module to notify the user of antenna mismatch.

[0033] like Figure 2 As shown, the workflow of this utility model is as follows:

[0034] Step 1: Determine the operating frequency or frequency band set of the node devices: First, determine the operating frequency or frequency band set of the node devices.

[0035] Step 2: Select frequency points or frequency bands from the set in sequence: Select one frequency point or frequency band from the set in sequence for processing.

[0036] Step 3: The signal generation and transmission device transmits radio frequency signals: The signal generation and transmission device transmits radio frequency signals at the selected frequency point or frequency band.

[0037] Step 4: The signal receiving and parsing device receives and parses the radio frequency signal: The signal receiving and parsing device receives and parses the radio frequency signal at the same frequency point or frequency band.

[0038] Step 5: Determine if the frequency point or band is suitable:

[0039] If the frequency point or band is suitable, it will be added to the intelligent frequency selection candidate set.

[0040] If it is not suitable, add it to the smart frequency selection rejection set.

[0041] Step 6: Check whether all frequency points or frequency bands in the set have been detected:

[0042] If not all frequency points or bands in the set have been detected, return to step 2 and continue selecting the next frequency point or band.

[0043] If all frequency points or frequency bands in the set have been detected, proceed to the next step.

[0044] Step 7: Perform intelligent frequency selection based on the intelligent frequency selection candidate set: Perform the final intelligent frequency selection process based on the frequency points or frequency bands in the intelligent frequency selection candidate set.

[0045] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A device for preventing antenna mismatch in an intelligent frequency selection system, characterized in that, It includes an intelligent frequency selective processor, a signal generating and transmitting device, a signal receiving and parsing device, a signal strength detection module, a control module, an alarm module, a communication interface module, and a power supply module; the signal generating and transmitting device, the signal receiving and parsing device, the signal strength detection module, the alarm module, the communication interface module, and the power supply module are all electrically connected to the control module, and the intelligent frequency selective processor is communicatively connected to the signal generating and transmitting device and the signal strength detection module; The intelligent frequency selection processor is used to determine the operating frequency point or frequency band set of the node device; The signal generation and transmission device is used to sequentially select frequency bands within the operating frequency band of the node device and transmit radio frequency signals of a certain strength. The signal receiving and parsing device is used to receive radio frequency signals in the corresponding frequency band; The signal strength detection module is used to determine whether the antenna is mismatched based on the strength of the received signal. The control module is used to control the operation of the signal generation and transmission device and the signal receiving and parsing device, and to determine whether the antenna is mismatched based on the detection results of the signal strength detection module.

2. The apparatus according to claim 1, characterized in that, The signal generation and transmission device includes a frequency synthesizer and a power amplifier; the frequency synthesizer is used to generate radio frequency signals in different frequency bands, and the power amplifier is used to amplify the radio frequency signals to a certain intensity.

3. The apparatus according to claim 1, characterized in that, The signal receiving and parsing device includes a low-noise amplifier and a mixer; the low-noise amplifier is used to amplify the received radio frequency signal, and the mixer is used to convert the received radio frequency signal into an intermediate frequency signal.

4. The apparatus according to claim 1, characterized in that, The signal strength detection module includes a detector and an analog-to-digital converter; the detector is used to detect the strength of the received signal, and the analog-to-digital converter is used to convert the analog signal into a digital signal.

5. The apparatus according to claim 1, characterized in that, The control module includes a microprocessor and a memory; the microprocessor is used to control the operation of the signal generation and transmission device and the signal receiving and parsing device, and the memory is used to store the detection results and preset thresholds.

6. The apparatus according to claim 1, characterized in that, The device also includes an alarm module; the alarm module is used to issue an alarm signal when the antenna mismatch occurs.

7. The apparatus according to claim 6, characterized in that, The alarm module includes LED indicator lights and a buzzer.

8. The apparatus according to claim 1, characterized in that, The device also includes a communication interface module; the communication interface module is used to transmit the detection results to external devices.

9. The apparatus according to claim 8, characterized in that, The communication interface module is an RS232 interface, a USB interface, or a wireless communication module.

10. The apparatus according to claim 1, characterized in that, The device also includes a power module; the power module is used to provide power to the entire device.

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