Microphone pairing method

Abstract

The invention discloses a microphone pairing method, which is characterized in that efficient connection of equipment is realized through cooperative interaction of a first communication protocol and a second communication protocol, transmitting terminal equipment transmits a verification signal containing identity verification information after triggering pairing, and a receiving terminal analyzes the verification signal and activates wireless monitoring; only authorized equipment can be ensured to be connectable through a dual verification mechanism, the problem of cross-region mispairing caused by wide wireless signal coverage in a traditional scheme is effectively solved, a pairing instruction only needs to be triggered at a single end, receiving end equipment automatically analyzes a verification signal and completes a subsequent process, and the pairing efficiency is improved. The tedious process of simultaneously operating the transmitting end and the receiving end in the traditional scheme is avoided, and the user experience is remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of wireless microphone communication, and more particularly to a microphone pairing method. Background Art

[0002] Wireless microphones and receivers are usually used as a complete set of products in audio collection scenarios, such as video shooting, live broadcasting, and audio recording. After the wireless microphone is turned on, the transmitter and receiver need to be paired quickly. Traditional pairing methods mainly rely on the following two technologies: 2.4GHz wireless pairing: Devices are connected through radio frequency signals, but the signal coverage range is wide (usually more than 10 meters), which can easily lead to mispairing of nearby devices.

[0003] Infrared-assisted pairing: Infrared signals are used to trigger the pairing process, but existing solutions only start wireless pairing through simple infrared commands, lack an information interaction mechanism, cannot verify the identity of the device, and still pose a risk of privacy leakage.

[0004] Problems in the existing wireless microphone pairing process: (1) It is necessary to press the pairing buttons of the transmitter and receiver at the same time to allow the two to complete the connection through wireless pairing, which is difficult to operate and has a poor user experience.

[0005] (2) The 2.4GHz signal has a wide coverage range, making it difficult to limit the physical distance between paired devices.

[0006] (3) There is no device information verification mechanism, which can easily lead to mispairing of non-target devices, affecting usage. Summary of the invention

[0007] In order to overcome the problems of the existing microphone pairing system that requires pressing the pairing buttons of the transmitter and receiver at the same time to allow the two to complete the connection through wireless pairing, which is difficult to operate, and the large coverage range of the 2.4GHz signal and the lack of a device information verification mechanism, the present invention provides a microphone pairing method.

[0008] The technical solution of the present invention is as follows: A microphone pairing method is applied to a wireless audio transmission system, including a transmitting end device and a receiving end device, and specifically includes the following steps: S1. In response to a pairing instruction, the transmitting device activates a pairing mode and sends a verification signal containing identity information to the receiving device based on a first communication protocol; S2, the receiving end device parses the identity information in the verification signal, and triggers the monitoring state of the second communication protocol based on the parsing result; S3, the transmitting end device sends a connection request signal through a second communication protocol, wherein the connection request signal carries identity information matching the verification signal; S4, the receiving end device compares the identity information in the verification signal and the connection request signal, and generates a pairing response signal if the consistency meets a preset threshold; S5. After receiving the pairing response signal, the transmitting device sends an encrypted confirmation signal to the receiving device, where the encrypted confirmation signal includes final identity verification information; S6. After verifying the validity of the encrypted confirmation signal, the receiving device establishes a stable communication link with the transmitting device to complete the pairing process.

[0009] According to the above scheme of the present invention, the first communication protocol is a short-range directional communication protocol, including infrared communication or Bluetooth; the second communication protocol is a wide-area wireless communication protocol.

[0010] According to the present invention of the above scheme, the identity identification information includes at least one of a device address, a dynamic pairing code or an encrypted hash value.

[0011] According to the present invention of the above scheme, the identity information includes a dynamically generated temporary pairing code, the validity period of the temporary pairing code is associated with the triggering time of the pairing instruction, and automatically expires after the pairing is completed.

[0012] According to the present invention of the above scheme, the transmission range of the verification signal is dynamically adjusted by at least one of the following methods: adjusting the signal transmission power of the first communication protocol; Modify the carrier frequency or modulation method of the first communication protocol.

[0013] According to the present invention of the above scheme, the encrypted confirmation signal is generated using an asymmetric encryption algorithm, and the verification process includes a timestamp check to prevent replay attacks.

[0014] According to the present invention of the above scheme, the pairing instruction is triggered by a single user operation, and during the operation, the verification signal is repeatedly sent at a preset interval until the receiving device completes the analysis.

[0015] According to the present invention of the above scheme, the transmission of the verification signal and the connection request signal adopts a time division duplex mechanism, which specifically includes: The transmitting end device suspends signal transmission of the second communication protocol during the period of sending the verification signal; After parsing the verification signal, the receiving device synchronously switches to the monitoring state of the second communication protocol through a preset time window to avoid signal interference.

[0016] According to the present invention of the above scheme, the microphone pairing method further includes an exception handling step: If the receiving device does not receive the encryption confirmation signal within a preset time, a retransmission request is sent to the transmitting device; The transmitting end device resends the encrypted confirmation signal in response to the retransmission request, and the number of retransmissions does not exceed a threshold.

[0017] According to the present invention of the above scheme, after completing the pairing, the receiving device stores the identity information in a non-volatile memory, and automatically initiates a fast pairing process based on the stored information when it is subsequently turned on.

[0018] The present invention according to the above scheme has the beneficial effect that a microphone pairing method of the present invention realizes efficient connection of devices through the collaborative interaction of a first communication protocol and a second communication protocol. The transmitting device transmits a verification signal containing identity authentication information after triggering the pairing, and the receiving end parses the verification signal and activates wireless monitoring. The double verification mechanism ensures that only authorized devices can be connected, which effectively solves the problem of cross-regional mispairing caused by the wide coverage of wireless signals in traditional solutions.

[0019] The present invention only requires a single-end trigger pairing command, and the receiving-end device automatically parses the verification signal and completes the subsequent process, avoiding the cumbersome process of operating the transmitting end and the receiving end at the same time in the traditional solution, and significantly improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the present invention. DETAILED DESCRIPTION

[0021] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0022] It should be noted that the terms "including" and "having" and any variations thereof in the specification and claims of the present invention are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or units that are inherent to these processes, methods, products or devices. Terms such as "disposed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral body; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. The directions or positions indicated by the terms "upper", "lower", "left", "right", "front", "back", "bottom", etc. are based on the directions or positions shown in the drawings, which are only for the convenience of description and cannot be understood as limitations on the present technical solution.

[0023] It should be noted that wireless microphones and receivers are usually used as a complete set of products in audio collection scenarios, such as video shooting, live broadcasting, and audio recording. After the wireless microphone is turned on, the transmitter and receiver need to be paired quickly. Traditional pairing methods mainly rely on the following two technologies: 2.4GHz wireless pairing: Devices are connected through radio frequency signals, but the signal coverage range is wide (usually more than 10 meters), which can easily lead to mispairing of nearby devices.

[0024] Infrared-assisted pairing: Infrared signals are used to trigger the pairing process, but existing solutions only start wireless pairing through simple infrared commands, lack an information interaction mechanism, cannot verify the identity of the device, and still pose a risk of privacy leakage.

[0025] Problems in the existing wireless microphone pairing process: (1) It is necessary to press the pairing buttons of the transmitter and receiver at the same time to allow the two to complete the connection through wireless pairing, which is difficult to operate and has a poor user experience.

[0026] (2) The 2.4GHz signal has a wide coverage range, making it difficult to limit the physical distance between paired devices.

[0027] (3) There is no device information verification mechanism, which can easily lead to mispairing of non-target devices, affecting usage.

[0028] like Figure 1As shown, this embodiment provides a microphone pairing method, which realizes efficient connection of devices through the collaborative interaction of a first communication protocol and a second communication protocol. The transmitting device transmits a verification signal containing identity authentication information after triggering the pairing, and the receiving end parses the verification signal and activates wireless monitoring. The double verification mechanism ensures that only authorized devices can connect, which effectively solves the problem of cross-regional mispairing caused by the wide coverage of wireless signals in traditional solutions.

[0029] Only a single-end trigger pairing command is required, and the receiving device automatically parses the verification signal and completes the subsequent process, avoiding the cumbersome process of operating the transmitter and receiver at the same time in traditional solutions, and significantly improving the user experience.

[0030] Specifically, the microphone pairing method is applied to a wireless audio transmission system, including a transmitting device and a receiving device, and specifically includes the following steps: S1. In response to a pairing instruction, the transmitting device activates a pairing mode and sends a verification signal containing identity information to the receiving device based on a first communication protocol; S2, the receiving device parses the identity information in the verification signal, and triggers the monitoring state of the second communication protocol based on the parsing result; S3. The transmitting end device sends a connection request signal through the second communication protocol, where the connection request signal carries identity information matching the verification signal; S4. The receiving device compares the identity information in the verification signal and the connection request signal. If the consistency meets the preset threshold, a pairing response signal is generated; if not, pairing is rejected. S5. After receiving the pairing response signal, the transmitting device sends an encrypted confirmation signal to the receiving device, where the encrypted confirmation signal includes the final identity verification information; S6. After the receiving device verifies the validity of the encrypted confirmation signal, it establishes a stable communication link with the transmitting device to complete the pairing process.

[0031] In one embodiment, the first communication protocol is a short-range directional communication protocol, including infrared communication or Bluetooth; and the second communication protocol is a wide-area wireless communication protocol.

[0032] In one embodiment, the identity information includes at least one of a device address, a dynamic pairing code, or an encrypted hash value.

[0033] In one embodiment, the identity information includes a dynamically generated temporary pairing code, the validity period of which is associated with the triggering time of the pairing instruction and automatically expires after the pairing is completed. The introduction of dynamic temporary codes in the identity information enhances security and prevents fixed addresses from being maliciously intercepted or forged. The temporary pairing code is dynamically generated based on the device's unique identifier and real-time timestamp, and the validity period is strictly bound to the pairing departure time. It automatically expires after expiration, eliminating the risk of fixed addresses being maliciously intercepted and reused.

[0034] In one embodiment, the transmission range of the verification signal is dynamically adjusted by at least one of the following methods: adjusting the signal transmission power of the first communication protocol; Modify the carrier frequency or modulation method of the first communication protocol.

[0035] By adjusting the signal strength or carrier frequency of the first communication protocol, the effective pairing distance can be limited to a range of 1-5 meters to prevent interference from long-distance devices.

[0036] In one embodiment, the encrypted confirmation signal is generated using an asymmetric encryption algorithm, and the verification process includes a timestamp check to prevent replay attacks.

[0037] The encrypted confirmation signal uses an asymmetric encryption algorithm and embeds a timestamp check to ensure the uniqueness of the key generated for each pairing and prevent attackers from forging connections by intercepting historical signals.

[0038] In one embodiment, the pairing instruction is triggered by a single user operation, and during the operation, the verification signal is repeatedly sent at a preset interval until the receiving device completes the analysis.

[0039] While the user continues to press the pairing button, the verification signal is repeatedly sent at fixed intervals to ensure that the receiving end can still successfully capture data in complex environments. The user does not need to precisely control the length of the button press, and the system automatically terminates the pairing process based on the signal reception status, lowering the operational threshold.

[0040] In one embodiment, the transmission of the verification signal and the connection request signal adopts a time division duplex mechanism, which specifically includes: The transmitting end device suspends signal transmission of the second communication protocol during the period of sending the verification signal; After parsing the verification signal, the receiving device synchronously switches to the monitoring state of the second communication protocol through a preset time window to avoid signal interference.

[0041] The timing control technology in multi-protocol collaboration scenarios can avoid spectrum interference between the first and second communication protocols by controlling the signal transmission periods of the first and second communication protocols in a time-sharing manner, thereby improving the pairing success rate. For example, the transmitter suspends wireless signal transmission when sending an infrared verification signal, and the receiver switches to wireless monitoring after the analysis is completed.

[0042] In one embodiment, the microphone pairing method further includes an exception handling step: If the receiving device does not receive the encryption confirmation signal within the preset time, it sends a retransmission request to the transmitting device; The transmitting end device resends the encrypted confirmation signal in response to the retransmission request, and the number of retransmissions does not exceed a threshold.

[0043] When the wireless signal is interfered with by the environment (such as electromagnetic noise) and the encryption confirmation signal is lost, the receiving device actively initiates a retransmission request, and the transmitting end resends the data according to the preset rules (such as a maximum of 3 retransmissions). The active retransmission strategy solves the signal loss problem and improves the robustness of the pairing process.

[0044] In one embodiment, after completing the pairing, the receiving device stores the identity information in a non-volatile memory, and automatically initiates a quick pairing process based on the stored information when the device is powered on subsequently. The receiving device stores the verified identity information in a non-volatile memory, and directly calls the stored information to initiate quick pairing when the device is powered on subsequently, skipping the infrared verification step, reducing the time for repeated pairing operations, improving the user experience, and binding the device identity to ensure long-term security.

[0045] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the appended claims of the present invention.

[0046] The above is an exemplary description of the present invention in conjunction with the accompanying drawings. It is obvious that the implementation of the present invention is not limited to the above-mentioned method. As long as various improvements are made by adopting the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A microphone pairing method, characterized in that: Applied to a wireless audio transmission system, including a transmitting device and a receiving device, specifically including the following steps: S1. In response to a pairing instruction, the transmitting device activates a pairing mode and sends a verification signal containing identity information to the receiving device based on a first communication protocol; S2, the receiving end device parses the identity information in the verification signal, and triggers the monitoring state of the second communication protocol based on the parsing result; S3, the transmitting end device sends a connection request signal through a second communication protocol, wherein the connection request signal carries identity information matching the verification signal; S4, the receiving end device compares the identity information in the verification signal and the connection request signal, and generates a pairing response signal if the consistency meets a preset threshold; S5. After receiving the pairing response signal, the transmitting device sends an encrypted confirmation signal to the receiving device, where the encrypted confirmation signal includes final identity verification information; S6. After verifying the validity of the encrypted confirmation signal, the receiving device establishes a stable communication link with the transmitting device to complete the pairing process.

2. A microphone pairing method according to claim 1, characterized in that: The first communication protocol is a short-range directional communication protocol, including infrared communication or Bluetooth; the second communication protocol is a wide-area wireless communication protocol.

3. A microphone pairing method according to claim 2, characterized in that: The identity information includes at least one of a device address, a dynamic pairing code, or an encrypted hash value.

4. A microphone pairing method according to claim 3, characterized in that: The identity information includes a dynamically generated temporary pairing code, the validity period of the temporary pairing code is associated with the triggering time of the pairing instruction, and the temporary pairing code automatically becomes invalid after the pairing is completed.

5. The microphone pairing method according to claim 1, characterized in that: The transmission range of the verification signal is dynamically adjusted by at least one of the following methods: adjusting the signal transmission power of the first communication protocol; Modify the carrier frequency or modulation method of the first communication protocol.

6. A microphone pairing method according to claim 1, characterized in that: The encrypted confirmation signal is generated using an asymmetric encryption algorithm, and the verification process includes a timestamp check to prevent replay attacks.

7. The microphone pairing method according to claim 1, characterized in that: The pairing instruction is triggered by a single user operation, and during the operation, the verification signal is repeatedly sent at a preset interval until the receiving device completes the analysis.

8. The microphone pairing method according to claim 1, characterized in that: The transmission of the verification signal and the connection request signal adopts a time division duplex mechanism, which specifically includes: The transmitting end device suspends signal transmission of the second communication protocol during the period of sending the verification signal; After parsing the verification signal, the receiving device synchronously switches to the monitoring state of the second communication protocol through a preset time window to avoid signal interference.

9. The microphone pairing method according to claim 1, characterized in that: The microphone pairing method further includes an exception handling step: If the receiving device does not receive the encryption confirmation signal within a preset time, a retransmission request is sent to the transmitting device; The transmitting end device resends the encrypted confirmation signal in response to the retransmission request, and the number of retransmissions does not exceed a threshold.

10. The microphone pairing method according to claim 1, characterized in that: After completing the pairing, the receiving device stores the identity information in a non-volatile memory, and automatically initiates a quick pairing process based on the stored information when it is subsequently powered on.

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