Intelligent Frequency Hopping Method and System for Wireless Microphones

Abstract

This invention discloses a method and system for intelligent frequency hopping in wireless microphones. The method includes: upon receiving a heartbeat packet sent by a target receiver, sending a corresponding heartbeat reply packet to the target receiver, the heartbeat reply packet including a normal heartbeat reply packet and an abnormal heartbeat reply packet; receiving a frequency hopping command packet output by the target receiver based on the abnormal heartbeat reply packet, the frequency hopping command packet including a target radio frequency point; and modifying the first current operating frequency point to the target radio frequency point in the frequency hopping command packet. Unlike existing cumbersome and inefficient manual frequency hopping methods, this invention obtains the target radio frequency point as the current operating frequency point by receiving the abnormal heartbeat reply packet from the target receiver when it detects co-channel interference. Therefore, this invention can quickly and automatically hop to a frequency point without co-channel interference without requiring manual operation by the user, improving both frequency hopping efficiency and user experience.

Description

Technical Field

[0001] This invention relates to the field of telecommunications technology, and in particular to a method and system for intelligent frequency hopping of wireless microphones. Background Technology

[0002] UHF wireless microphones are widely used due to their stable audio signal transmission, good sound quality, strong anti-interference capabilities, and availability of more effective compatible frequency points. However, UHF wireless microphones are often plagued by co-channel crosstalk, where external interference on the same frequency as the microphone causes the receiver to receive useless noise interference or crosstalk audio.

[0003] Existing technologies for reconnecting to the microphone in the presence of co-channel interference involve placing a frequency switching button on the microphone. When the user experiences interference noise or the microphone cannot connect, they manually select the frequency to be paired by pressing the frequency switching button. The receiver then passively follows the microphone after detecting that it is offline at the current frequency. Therefore, existing technologies not only suffer from excessively long frequency switching times and cumbersome operation requiring user intervention, but also the possibility that the newly switched frequency may not be free from interference, resulting in low frequency tuning efficiency. Therefore, there is an urgent need for an intelligent frequency hopping method that can quickly and automatically hop to an interference-free frequency when co-channel interference is detected in the wireless microphone.

[0004] The above content is only used to help understand the technical solution of the present invention and does not represent an admission that the above content is prior art. Summary of the Invention

[0005] The main objective of this invention is to provide a method and system for intelligent frequency hopping of wireless microphones, which aims to solve the technical problems of long frequency switching time, complex operation and low frequency modulation efficiency of existing frequency hopping technologies.

[0006] To achieve the above objectives, the present invention provides a method for intelligent frequency hopping of wireless microphones. The method includes the following steps:

[0007] Upon receiving a heartbeat packet from the target receiver, a corresponding heartbeat reply packet is sent back to the target receiver. The heartbeat reply packet includes: a normal heartbeat reply packet and an abnormal heartbeat reply packet.

[0008] Receive the frequency hopping command packet output by the target receiver based on the abnormal heartbeat response packet, wherein the frequency hopping command packet includes the target radio frequency point;

[0009] Modify the first current operating frequency to the target radio frequency in the frequency hopping instruction packet.

[0010] Optionally, after receiving a heartbeat packet sent by the target receiver, the step of sending a corresponding heartbeat reply packet to the target receiver further includes:

[0011] The received heartbeat packets are counted;

[0012] When a continuous abnormality in heartbeat packet count and the presence of at least one of the abnormal heartbeat packets are detected, the radio frequency function is turned off and the fault warning light is turned on.

[0013] Optionally, after shutting down the radio frequency module and turning on the fault warning light, the method further includes:

[0014] Recount the received heartbeat packets;

[0015] When an abnormal heartbeat count is detected and the abnormal heartbeat is not detected, the radio frequency function is activated and the fault warning light is turned off.

[0016] Optionally, the wireless microphone intelligent frequency hopping method further includes:

[0017] If no heartbeat packet is received from the target receiver, record the number of consecutive failed receptions of the heartbeat packet;

[0018] When the number of consecutive reception failures exceeds the preset number of failures, the radio frequency function is turned off and the fault warning light is turned on.

[0019] Optionally, after disabling the radio frequency function and turning on the fault warning light, the method further includes:

[0020] When the number of consecutive reception failures is detected to be less than the preset number of failures, the radio frequency function is activated and the fault warning light is turned off.

[0021] In addition, to achieve the above objectives, the present invention also proposes a wireless microphone intelligent frequency hopping system, which includes: a receiver and a wireless microphone;

[0022] The receiving end is used to select a target radio frequency point based on the signal quality of each radio frequency point when co-channel interference is detected in the wireless microphone, and send a frequency hopping command packet containing the target radio frequency point to the wireless microphone.

[0023] The wireless microphone is used to modify the first current operating frequency to the target radio frequency when it receives the frequency hopping command packet.

[0024] Optionally, the wireless microphone is also used to disable the radio frequency function and turn on the fault warning light when an abnormality is detected at the receiving end;

[0025] The wireless microphone is also used to collect the target audio signal and send the target audio signal to the receiving end when the receiving end is detected to be normal.

[0026] The receiving end is also used to play the target audio signal when it receives the target audio signal.

[0027] Optionally, the wireless microphone includes: an MCU unit, an alarm unit, and a first communication unit;

[0028] The MCU unit is connected to the warning unit, and the first communication unit is connected to both the MCU unit and the receiving end.

[0029] The MCU unit is used to send a fault signal to the warning unit when an abnormality is detected at the receiving end, and to shut down the first communication unit.

[0030] The warning unit is used to turn on the fault indicator light when the fault signal is received;

[0031] The MCU unit is further configured to modify the first current operating frequency to the target radio frequency when the target radio frequency is received;

[0032] The first communication unit is used to send the target audio signal to the receiving end based on the target radio frequency point.

[0033] Optionally, the receiving end includes: a second communication unit and a DSP unit;

[0034] The second communication unit is connected to both the wireless microphone and the DSP unit.

[0035] The DSP unit is used to select a target radio frequency point based on the signal quality of each radio frequency point when co-channel interference is detected in the wireless microphone, and send the frequency hopping command packet containing the target radio frequency point to the wireless microphone.

[0036] The DSP unit is also used to modify the second current operating frequency to the target radio frequency when co-channel interference is detected in the wireless microphone.

[0037] The second communication unit is used to receive the target audio signal based on the target radio frequency point.

[0038] Optionally, the wireless microphone further includes: a first Bluetooth communication unit;

[0039] The first Bluetooth communication unit is used to send the target radio frequency point to the receiving end after the first communication unit is turned off;

[0040] Accordingly, the receiving end further includes: a second Bluetooth communication unit;

[0041] The second Bluetooth communication unit is used to receive the target radio frequency point and send the target radio frequency point to the DSP unit, so that the DSP unit modifies the second current operating frequency point to the target radio frequency point.

[0042] This invention discloses a method and system for intelligent frequency hopping for wireless microphones. The method includes: upon receiving a heartbeat packet sent by a target receiver, sending a corresponding heartbeat reply packet to the target receiver, the heartbeat reply packet including a normal heartbeat reply packet and an abnormal heartbeat reply packet; receiving a frequency hopping command packet output by the target receiver based on the abnormal heartbeat reply packet, the frequency hopping command packet including a target radio frequency point; and modifying the first current operating frequency point to the target radio frequency point in the frequency hopping command packet. Unlike existing cumbersome and inefficient manual frequency hopping methods, this invention obtains the target radio frequency point as the current operating frequency point by receiving the abnormal heartbeat reply packet from the target receiver when co-channel interference is detected. Therefore, this invention can quickly and automatically hop to a frequency point without co-channel interference when co-channel interference is detected in the wireless microphone, without requiring manual operation by the user. Thus, this invention improves both frequency hopping efficiency and user experience. Attached Figure Description

[0043] Figure 1 This is a flowchart illustrating the first embodiment of the intelligent frequency hopping method for wireless microphones of the present invention.

[0044] Figure 2 This is a schematic diagram of the heartbeat packet content in the first embodiment of the wireless microphone intelligent frequency hopping method of the present invention;

[0045] Figure 3 This is a schematic diagram of the contents of the heartbeat response packet in the first embodiment of the wireless microphone intelligent frequency hopping method of the present invention;

[0046] Figure 4 This is a schematic diagram of the contents of the frequency hopping instruction packet in the first embodiment of the wireless microphone intelligent frequency hopping method of the present invention;

[0047] Figure 5 This is a flowchart illustrating the second embodiment of the intelligent frequency hopping method for wireless microphones of the present invention.

[0048] Figure 6 This is a structural block diagram of the first embodiment of the wireless microphone intelligent frequency hopping system of the present invention.

[0049] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0050] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0051] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0052] It should be noted that the descriptions involving "first," "second," etc., in the embodiments of the present invention are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0053] This invention provides a method for intelligent frequency hopping of wireless microphones, referring to... Figure 1 , Figure 1 This is a flowchart illustrating the first embodiment of the intelligent frequency hopping method for wireless microphones of the present invention.

[0054] In this embodiment, the intelligent frequency hopping method for wireless microphones includes the following steps:

[0055] Step S10: Upon receiving a heartbeat packet sent by the target receiver, a heartbeat reply packet corresponding to the heartbeat packet is sent back to the target receiver. The heartbeat reply packet includes: a normal heartbeat reply packet and an abnormal heartbeat reply packet.

[0056] It should be noted that the execution subject of the method in this embodiment can be a wireless microphone with audio acquisition, audio transmission, and radio frequency signal transmission and reception functions. Here, the intelligent frequency hopping method for wireless microphones provided in this embodiment and the following embodiments is specifically described using a target wireless microphone. The aforementioned target receiving end can be an audio receiving end corresponding to the aforementioned target wireless microphone. The target wireless microphone will send the acquired target audio to the target receiving end, and the target receiving end will play the received target audio.

[0057] The aforementioned heartbeat packet can be a command word that periodically notifies the target wireless microphone and the target receiver of its own status. This command word is sent from the target receiver to the target wireless microphone at certain time intervals. For ease of understanding, it is referred to as... Figure 2 Let's take an example to illustrate this. Figure 2 This is a schematic diagram of the heartbeat packet content in the first embodiment of the intelligent frequency hopping method for wireless microphones of the present invention. Figure 2It is known that the heartbeat packet content may include: packet header, heartbeat count, current channel quality, number of connected microphones, radio frequency channels of connected microphones (supporting a maximum of 8 microphones connected simultaneously), and packet tail checksum. The target wireless microphone can judge the working status of the target receiver by checking the heartbeat count, and can also obtain the current channel quality for display and obtain the channel quality of other microphones to comprehensively judge the current environment. In addition, after receiving the heartbeat packet, the target wireless microphone will send a corresponding heartbeat reply packet to the target receiver at certain time intervals. Figure 3 Let's take an example to illustrate this. Figure 3 This is a schematic diagram of the heartbeat response packet content in the first embodiment of the intelligent frequency hopping method for wireless microphones of the present invention. Figure 3 As can be seen, the heartbeat response packet can include: packet header, microphone ID, hardware version number, software version number, product model, and packet tail checksum. The target wireless microphone sends its own ID, hardware / software version number, and product model to the target receiver, allowing the receiver to determine the target wireless microphone's online status. The purpose of the aforementioned heartbeat packet and heartbeat response packet is to determine whether there is co-channel interference between the target wireless microphone and the target receiver. If there is no co-channel interference, the target receiver receives a normal heartbeat response packet; conversely, if co-channel interference exists, the target receiver receives an abnormal heartbeat response packet.

[0058] Step S20: Receive the frequency hopping command packet output by the target receiver based on the abnormal heartbeat reply packet, wherein the frequency hopping command packet includes the target radio frequency point;

[0059] It should be noted that when the target receiver detects an anomaly in the target wireless microphone's heartbeat response packet, such as five failed responses or consecutive verification errors, it can enter frequency hopping mode. This mode iterates through the signal quality of all frequency points and selects the frequency with the best signal quality as the target RF frequency. Then, it sends a frequency hopping command packet containing that target RF frequency to the target wireless microphone. Figure 4 Let's take an example to illustrate this. Figure 4 This is a schematic diagram of the contents of the frequency hopping instruction packet in the first embodiment of the wireless microphone intelligent frequency hopping method of the present invention. The contents of the frequency hopping instruction packet may include: packet header, microphone ID, target radio frequency point, transmit power, reservation and packet tail verification.

[0060] Step S30: Modify the first current operating frequency to the target radio frequency in the frequency hopping instruction packet.

[0061] It should be noted that if the target wireless microphone receives the frequency hopping command packet, the target wireless microphone will change its first current operating frequency to the target radio frequency in the frequency hopping command packet according to the frequency hopping command packet, and modify the power configuration item accordingly. The first current operating frequency is the current operating frequency of the target wireless microphone.

[0062] In the specific implementation, the target receiver periodically sends heartbeat packets to the target wireless microphone, while the target wireless microphone periodically sends heartbeat reply packets to the target receiver. When co-channel interference exists, the target receiver receives an abnormal heartbeat reply packet. The target receiver then enters frequency hopping mode, iterates through the signal quality of all frequency points, selects the frequency with the best signal quality as the target RF frequency, and then sends a frequency hopping command packet containing the target RF frequency to the target wireless microphone. Upon receiving the frequency hopping command packet, the target wireless microphone modifies its first current operating frequency to the aforementioned target RF frequency according to the frequency hopping command packet and modifies the power configuration items accordingly.

[0063] This embodiment, upon receiving a heartbeat packet from the target receiver, sends a corresponding heartbeat reply packet back to the target receiver. The heartbeat reply packet includes a normal heartbeat reply packet and an abnormal heartbeat reply packet. It then receives a frequency hopping command packet output by the target receiver based on the abnormal heartbeat reply packet, the frequency hopping command packet including the target radio frequency point. Finally, it modifies the first current operating frequency point to the target radio frequency point in the frequency hopping command packet. Unlike existing cumbersome and inefficient manual frequency hopping methods, this embodiment receives an abnormal heartbeat reply packet from the target receiver when it detects co-channel interference, and obtains the target radio frequency point from the abnormal heartbeat reply packet as the current operating frequency point. Therefore, this embodiment can quickly and automatically hop to a frequency point without co-channel interference when co-channel interference is detected in the wireless microphone, without requiring manual frequency hopping by the user. Thus, this embodiment improves both frequency hopping efficiency and user experience.

[0064] Reference Figure 5 , Figure 5 This is a flowchart illustrating the second embodiment of the intelligent frequency hopping method for wireless microphones of the present invention, based on the above. Figure 1 The illustrated embodiment presents a second embodiment of the intelligent frequency hopping method for wireless microphones of the present invention.

[0065] Understandably, in order to save power, if the target wireless microphone detects that the target receiver is powered off or malfunctioning, it can shut down its own radio frequency module and issue an alarm via an indicator light.

[0066] Therefore, further in this embodiment, step S10 is followed by:

[0067] Step S21: Count the received heartbeat packets;

[0068] Step S22: When at least one of the following is detected: continuous abnormal heartbeat packet count and abnormal heartbeat packet, the radio frequency function is turned off and the fault warning light is turned on.

[0069] Step S23: Recount the received heartbeat packets;

[0070] Step S24: When the abnormal heartbeat packet count and the absence of abnormal heartbeat packets are detected, the radio frequency function is turned on and the fault warning light is turned off.

[0071] It should be noted that the target wireless microphone continuously monitors the heartbeat count in the received heartbeat packets during operation. When it receives a heartbeat packet and finds that the count is continuously abnormal or receives an abnormal heartbeat packet (i.e., the heartbeat packet verification is continuously incorrect), it determines that the target receiver is malfunctioning. At this time, the target wireless microphone will shut down the corresponding radio frequency module and cause the fault warning light to flash as an alarm.

[0072] Understandably, once the received heartbeat packets no longer show continuous abnormality in the count and no more abnormal heartbeat packets are received, the target wireless microphone can restart the RF module and turn off the fault warning light.

[0073] Similarly, if the target wireless microphone detects that the target receiver has lost power, i.e., it cannot continuously receive heartbeat packets from the target receiver, the target wireless microphone also needs to shut down its own radio frequency module and alarm via indicator light.

[0074] The above method further includes: step S11: when no heartbeat packet is received from the target receiving end, record the number of consecutive reception failures of the heartbeat packet;

[0075] Step S12: When the number of consecutive reception failures exceeds the preset number of failures, turn off the radio frequency function and turn on the fault warning light.

[0076] Step S13: When the number of consecutive reception failures is detected to be less than the preset number of failures, the radio frequency function is turned on and the fault warning light is turned off.

[0077] It should be noted that if a heartbeat packet cannot be received, it should first be determined whether there is co-channel interference. For example, if the heartbeat packet is only missed once or only for a short period of time, it may be due to a failed heartbeat packet transmission, and interference cannot be determined at this time. Therefore, when a heartbeat packet cannot be received, the number of consecutive reception failures of the target wireless microphone can be detected to determine whether there is co-channel interference. When the number of consecutive reception failures of the target wireless microphone exceeds the preset failure number, the RF function is turned off and the fault warning light is turned on. Usually, the preset failure number is one, but other values ​​can be set according to specific circumstances. This embodiment does not impose any restrictions on this, in order to avoid the target wireless microphone frequently turning the RF module on and off during normal signal transmission fluctuations, causing unnecessary power consumption.

[0078] Understandably, when the number of consecutive reception failures is detected again and does not exceed the preset number of failures, it can be determined that the frequency switching has been completed and the co-channel interference has been eliminated, the radio frequency module is turned on, and the fault warning light is turned off accordingly.

[0079] This embodiment counts the received heartbeat packets. When at least one of the following is detected: consecutive abnormal heartbeat packet counts or the presence of abnormal heartbeat packets, the radio frequency (RF) function is disabled and the fault warning light is activated. The received heartbeat packets are then counted again. When neither an abnormal heartbeat packet count nor abnormal heartbeat packets are detected, the RF function is activated and the fault warning light is deactivated. Simultaneously, when no heartbeat packets are received from the target receiver, the number of consecutive failed heartbeat packet receptions is recorded. When the number of consecutive failed receptions exceeds a preset number, the RF function is disabled and the fault warning light is activated. Therefore, this embodiment can automatically detect faults at the target receiver and, upon detecting a fault or power failure at the target receiver, disable the high-power module of the target wireless microphone, saving battery power.

[0080] refer to Figure 6 , Figure 6 This is a structural block diagram of the first embodiment of the wireless microphone intelligent frequency hopping system of the present invention.

[0081] like Figure 6 As shown, the wireless microphone intelligent frequency hopping system proposed in this embodiment of the invention includes:

[0082] Receiver 601 and wireless microphone 602;

[0083] The receiver 601 is used to select a target radio frequency point according to the signal quality of each radio frequency point when co-channel interference is detected in the wireless microphone 602, and send a frequency hopping command packet containing the target radio frequency point to the wireless microphone 602.

[0084] It should be noted that the aforementioned receiver 601 can be a device that receives and plays the target audio signal transmitted by the aforementioned wireless microphone 602, such as... Figure 6 As shown, the receiver 601 includes a second communication unit 6011 and a DSP unit 6012. The second communication unit 6011 is connected to the wireless microphone 602 and the DSP unit 6012 respectively. The second communication unit 6011 is connected to the wireless microphone 602 via a radio frequency signal and can receive the target audio signal based on the target radio frequency point. When the DSP unit 6012 detects co-channel interference with the wireless microphone 602, it selects the best frequency point as the target radio frequency point based on the signal quality of each radio frequency point, sends a frequency hopping command packet containing the target radio frequency point to the wireless microphone 602, and modifies its own second current operating frequency point to the target radio frequency point. The target radio frequency point can be the final common operating frequency point of the receiver 601 and the wireless microphone 602.

[0085] The wireless microphone 602 is used to modify the first current operating frequency to the target radio frequency when it receives the frequency hopping instruction packet.

[0086] It should be noted that the wireless microphone 602 can collect the target audio signal and send it to the receiver 601 when the receiver 601 is functioning normally; alternatively, it can disable the radio frequency function and activate the fault warning light when the receiver 601 is detected to be malfunctioning. Figure 6 As shown, the wireless microphone 602 includes: a first communication unit 6021, an MCU unit 6022, and an alarm unit 6023. The MCU unit 6022 is connected to the alarm unit 6023, and the first communication unit 6021 is connected to both the MCU unit 6022 and the receiver 601. Specifically, the first communication unit 6021 is connected to the receiver 601 via a radio frequency signal. The first communication unit 6021 can also be connected to the second communication unit 6011 via a radio frequency signal. The first communication unit 6021 can send a target audio signal to the receiver 601 based on a target radio frequency point. The MCU unit 6022 can send a fault signal to the alarm unit 6023 and shut down the first communication unit 6021 when it detects an abnormality in the receiver 601. It can also modify the first current operating frequency point corresponding to the wireless microphone 602 to the target radio frequency point when it receives the target radio frequency point. The alarm unit 6023 can turn on a fault indicator light when it receives a fault signal.

[0087] Furthermore, when the first communication unit 6021 of the wireless microphone 602 is turned off, the wireless microphone 602 can also send the target radio frequency point to the receiving end 601 through the first Bluetooth communication unit 6024 to establish a connection between the wireless microphone 602 and the receiving end 601. Correspondingly, the receiving end 601 also includes a second Bluetooth communication unit 6013, which is used to receive the target radio frequency point of the first Bluetooth communication unit 6024 and modify the second current working frequency point to the target radio frequency point by the DSP unit 6012.

[0088] This embodiment discloses a wireless microphone intelligent frequency hopping system, including: a receiver 601 and a wireless microphone 602. The receiver 601 is used to select a target radio frequency point based on the signal quality of each radio frequency point when co-channel interference is detected in the wireless microphone 602, and send a frequency hopping command packet containing the target radio frequency point to the wireless microphone 602. The wireless microphone 602 is used to modify the first current working frequency point to the target radio frequency point when it receives the frequency hopping command packet; it is also used to disable the radio frequency function and turn on the fault warning light when an abnormality is detected in the receiver 601. Unlike existing cumbersome and inefficient manual frequency hopping methods, this embodiment automatically selects the optimal target frequency when the receiver detects co-channel interference with the wireless microphone. The wireless microphone then uses the received target frequency as its current operating frequency. Therefore, this embodiment can quickly and automatically hop to a non-interference frequency when co-channel interference is detected, without requiring manual operation by the user. This improves both efficiency and user experience. Furthermore, this embodiment can automatically detect receiver faults and shut down the high-power module of the wireless microphone when a receiver fault or power failure is detected, saving battery power.

[0089] Other embodiments or specific implementations of the intelligent frequency hopping device for wireless microphones of the present invention can be found in the above-described method embodiments, and will not be repeated here.

[0090] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or system 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 system. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or system that includes that element.

[0091] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0092] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as described above, and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of the present invention.

[0093] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural or procedural transformations made based on the description and drawings of the present invention, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of the present invention.

Claims

1. A method for intelligent frequency hopping of a wireless microphone, characterized in that, The method includes: When receiving a heartbeat packet sent by a target receiver, feedback a heartbeat response packet corresponding to the heartbeat packet to the target receiver. The heartbeat response packet includes: a normal heartbeat response packet corresponding to the absence of co-channel interference and an abnormal heartbeat response packet corresponding to the presence of co-channel interference; Receive a frequency hopping instruction packet output by the target receiver based on the abnormal heartbeat response packet. The frequency hopping instruction packet includes a target radio frequency point; Modify the first current working frequency point to the target radio frequency point in the frequency hopping instruction packet.

2. The wireless microphone intelligent frequency hopping method according to claim 1, wherein After the step of, when receiving a heartbeat packet sent by a target receiver, feedback a heartbeat response packet corresponding to the heartbeat packet to the target receiver, the method further includes: Count the received heartbeat packets; When detecting at least one of continuous abnormal heartbeat packet counting and the presence of the abnormal heartbeat response packet, turn off the radio frequency function and turn on the fault warning light.

3. The wireless microphone intelligent frequency hopping method according to claim 2, wherein After the step of turning off the radio frequency function and turning on the fault warning light, the method further includes: Re-count the received heartbeat packets; When detecting that both continuous abnormal heartbeat packet counting and the abnormal heartbeat response packet do not exist, turn on the radio frequency function and turn off the fault warning light.

4. The intelligent frequency hopping method of a wireless microphone according to claim 1, wherein, The intelligent frequency hopping method for a wireless microphone further includes: When not receiving a heartbeat packet sent by a target receiver, record the continuous reception failure times of the heartbeat packet; When the continuous reception failure times exceed a preset failure times, turn off the radio frequency function and turn on the fault warning light.

5. The intelligent frequency hopping method of a wireless microphone according to claim 4, wherein, After the step of turning off the radio frequency function and turning on the fault warning light, the method further includes: When detecting that the continuous reception failure times do not exceed the preset failure times, turn on the radio frequency function and turn off the fault warning light.

6. A wireless microphone intelligent frequency hopping system, characterized in that, The intelligent frequency hopping system for a wireless microphone includes: a receiver and a wireless microphone; The receiver is configured to, when detecting co-channel interference of the wireless microphone based on a heartbeat response packet, select a target radio frequency point according to the signal quality of each radio frequency point, and send a frequency hopping instruction packet including the target radio frequency point to the wireless microphone. The heartbeat response packet includes: a normal heartbeat response packet corresponding to the absence of co-channel interference and an abnormal heartbeat response packet corresponding to the presence of co-channel interference; The wireless microphone is configured to, when receiving the frequency hopping instruction packet, modify the first current working frequency point to the target radio frequency point.

7. The wireless microphone intelligent frequency hopping system according to claim 6, wherein The wireless microphone is further configured to turn off the radio frequency function and turn on the fault warning light when detecting an abnormality of the receiver; The wireless microphone is further configured to, when detecting that the receiver is normal, collect a target audio signal and send the target audio signal to the receiver; The receiver is further configured to play the target audio signal when receiving the target audio signal.

8. The wireless microphone intelligent frequency hopping system according to claim 7, wherein, The wireless microphone includes: an MCU unit, a warning unit, and a first communication unit; The MCU unit is connected to the warning unit, and the first communication unit is respectively connected to the MCU unit and the receiver; The MCU unit is configured to send a fault signal to the warning unit when detecting an abnormality of the receiver and turn off the first communication unit; The warning unit is configured to turn on a fault indicator light when receiving the fault signal; The MCU unit is further configured to modify the first current operating frequency to the target radio frequency when the target radio frequency is received; The first communication unit is used to send the target audio signal to the receiving end based on the target radio frequency point.

9. The wireless microphone intelligent frequency hopping system according to claim 8, wherein, The receiving end includes: a second communication unit and a DSP unit; The second communication unit is connected to both the wireless microphone and the DSP unit. The DSP unit is used to select a target radio frequency point based on the signal quality of each radio frequency point when co-channel interference is detected in the wireless microphone, and send the frequency hopping command packet containing the target radio frequency point to the wireless microphone. The DSP unit is also used to modify the second current operating frequency to the target radio frequency when co-channel interference is detected in the wireless microphone. The second communication unit is used to receive the target audio signal based on the target radio frequency point.

10. The wireless microphone intelligent frequency hopping system according to claim 9, wherein The wireless microphone further includes: a first Bluetooth communication unit; The first Bluetooth communication unit is used to send the target radio frequency point to the receiving end after the first communication unit is turned off; Accordingly, the receiving end further includes: a second Bluetooth communication unit; The second Bluetooth communication unit is used to receive the target radio frequency point and send the target radio frequency point to the DSP unit, so that the DSP unit modifies the second current operating frequency point to the target radio frequency point.

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