CN115884321B - WiFi communication method and server for automatic frequency matching of wireless microphone - Google Patents
WiFi communication method and server for automatic frequency matching of wireless microphone Download PDFInfo
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention discloses a WiFi communication method and a server for automatically frequency-matching a wireless microphone, wherein the method drives an AP and the wireless microphone to automatically frequency-matching operation through a WiFi communication function, a U-section communication function is realized, the trouble of manually frequency-matching is avoided, the AP and the wireless microphone are connected and keep regular WiFi communication, when the U-section communication is disconnected due to interference, a wireless microphone system can automatically avoid the interference to reestablish the U-section communication, and the optimal AP is automatically selected for communication.
Description
Technical Field
The invention relates to the technical field of wireless communication, in particular to a WiFi communication method and a server for automatic frequency matching of a wireless microphone.
Background
At present, most conference occasions are provided with wireless microphone systems so as to reduce field wiring, however, the conventional wireless microphone systems need to manually send frequency alignment instructions to the frequency and are completed by infrared signals, manual frequency alignment is needed between a wireless microphone and an AP, operation is complex and time-consuming, the infrared frequency alignment distance is short, the distance between the wireless microphone and the AP is limited, meanwhile, an infrared receiving port of the AP needs to be aligned with an infrared emitting port of the wireless microphone, layout setting of the wireless microphone and the AP is limited, and unnecessary troubles are easily caused for practical conference place arrangement and use in a conference.
Disclosure of Invention
In order to overcome the defects of the prior art, one of the purposes of the invention is to provide a WiFi communication method for automatically frequency-matching a wireless microphone, which can solve the problems of complicated manual frequency-matching and infrared frequency-matching operation and limited communication distance of the existing wireless microphone system.
The second objective of the present invention is to provide a WiFi communication server for automatically frequency-matching wireless microphone, which can solve the problems of complicated manual frequency-matching and infrared frequency-matching operation and limited communication distance of the existing wireless microphone system.
In order to achieve one of the above purposes, the technical scheme adopted by the invention is as follows:
a WiFi communication method for automatic frequency matching of a wireless microphone comprises the following steps,
s1: the wireless microphone is driven to scan the AP through WiFi, and the U-section communication is requested to the AP which accords with the convention and has the strongest signal strength;
s2: judging whether the wireless microphone receives the U-section frequency matching information replied by the AP, if not, driving the wireless microphone to disconnect the WiFi connection with the AP, and executing S1, if so, executing S3;
s3: judging whether the information replied by the AP is U-section frequency matching information, if so, driving the wireless microphone and the AP to complete U-section frequency matching operation, establishing U-section communication connection, executing S4, if not, driving the wireless microphone to disconnect the WiFi connection with the AP, storing the MAC code of the AP, and executing S1;
s4: closing WiFi of the wireless microphone, restarting WiFi after the first time interval, and sending query information to the AP;
s5: judging whether the AP replies the query information of the wireless microphone, if not, executing S1, and if so, executing S6;
s6: judging whether the U-section communication is disconnected, if not, executing S4, and if so, executing S7;
s7: and judging whether the WiFi intensity of the AP exceeds a threshold value, if so, driving the AP to perform frequency scanning, retransmitting frequency matching information to the wireless microphone, performing U-section frequency matching operation, establishing U-section communication connection, executing S4, and if not, disconnecting the wireless microphone from the WiFi of the AP, and executing S1.
Preferably, the following steps are further included between S1 and S2:
s11: driving the AP to start the U-section scanning to obtain clean frequency for standby so that the existing clean frequency is available when a frequency matching request of wireless microphone U-section communication is received;
s12: judging whether the AP has other wireless microphones occupying U-section communication rights, if not, driving the AP to send U-section frequency matching information to the wireless microphones, executing S2, and if so, executing S13;
s13: and judging whether the signal intensity of the wireless microphone exceeds a threshold value, if so, driving the AP to send a refusing U-section communication request to the wireless microphone, executing S2, if not, driving the AP to start U-section scanning, obtaining clean frequency standby, and sending U-section frequency matching information to the wireless microphone, and executing S2.
Preferably, the step S5 is specifically implemented by the following steps:
s51: the AP is driven to judge whether a new wireless microphone requests U-section communication, if yes, the U-section communication is carried out according to the priority of the wireless microphone, the query information of the wireless microphone is replied, if no, the U-section communication condition is checked, and the query information of the wireless microphone is replied;
s52: judging whether the wireless microphone acquires the query information replied by the AP, if not, executing S53, and if so, executing S54;
s53: driving the wireless microphone to repeatedly send query information to the AP for N times, judging whether the wireless microphone acquires the query information replied by the AP, if not, executing S1, and if so, executing S54;
s54: and judging whether the current wireless microphone loses the U-section communication right with the AP, if so, driving the wireless microphone to disconnect the WiFi connection with the AP, storing the MAC code of the AP, and if not, executing S6.
Preferably, the step S4 is specifically implemented by the following steps:
s41: restarting WiFi after the WiFi interval of the wireless microphone is closed for the first time, and sending query information to the AP;
s42: judging whether the AP receives the query information of the wireless microphone, if so, executing S5, and if not, executing S43;
s43: and judging whether the AP receives the query information of the wireless microphone in the second time, if so, executing S5, and if not, driving the AP to start U-section scanning to obtain clean frequency for standby.
Preferably, the step S2 is specifically implemented by the following steps:
s21: judging whether the wireless microphone receives the AP reply information, if not, executing S22, if so, executing S3
S22: and driving the wireless microphone to repeatedly request the U-section communication for N times to the AP, judging whether the wireless microphone receives the information replied by the AP, if not, driving the wireless microphone to disconnect the WiFi connection with the AP, executing S1, and if so, executing S3.
In order to achieve the second purpose, the technical scheme adopted by the invention is as follows:
a WiFi communication server for automatic frequency pairing of a wireless microphone, comprising a memory and a processor;
a memory for storing program instructions;
and the processor is used for running the program instructions to execute the WiFi communication method for the wireless microphone automatic frequency matching.
Compared with the prior art, the invention has the beneficial effects that: the wireless microphone system can automatically avoid interference to reestablish the U-section communication and automatically select the optimal AP for communication when the U-section communication is disconnected due to interference.
Drawings
Fig. 1 is a flowchart of a WiFi communication method for wireless microphone automatic frequency pairing according to the present invention.
Fig. 2 is a flowchart of a practical application of the wireless microphone according to the present invention.
Fig. 3 is a flowchart of an actual application of the AP according to the present invention.
Detailed Description
The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The invention will be further described with reference to the accompanying drawings and detailed description below:
in the invention, the AP is a U-section receiver, the wireless microphone and the AP are connected in two wireless modes at the same time, and the U-section (approximately refers to the frequency range of 400MHz-900MHz and used for voice communication) and WiFi (used for information interaction). The wireless microphone needs to set the same frequency, ID code, etc. as the AP (U-section receiver) to communicate with the AP (U-section receiver). The operation of the microphone and the information of the AP (U-band receiver) synchronous frequency, ID code and the like is U-band frequency matching.
Embodiment one:
as shown in fig. 1-3, a WiFi communication method for automatic frequency pairing of a wireless microphone, comprising the steps of,
s1: the wireless microphone is driven to scan the AP through WiFi, and the U-section communication is requested to the AP which accords with the convention and has the strongest signal strength;
specifically, the wireless microphone is started up to perform WiFi scanning, information such as SSID codes, wiFi signal intensity values and the like of all APs in the received signal range in the environment is searched for an AP with SSID conforming to the convention, and a U-section communication is requested to the AP with the strongest signal intensity, and in the embodiment, the wireless microphone automatically selects the optimal AP (U-section receiver) to perform communication; meanwhile, when a plurality of wireless microphones all request communication, the AP (U-section receiver) automatically selects the optimal wireless microphone to communicate.
The method further comprises the following steps between S1 and S2:
s11: driving the AP to start the U-section scanning to obtain clean frequency for standby so that the existing clean frequency is available when a frequency matching request of wireless microphone U-section communication is received;
specifically, when the wireless microphone is started, the AP initializes and starts WiFi, U-section frequency scanning is started, clean frequency standby is obtained, and the clean frequency standby is used for responding to a U-section communication frequency matching request of the wireless microphone.
S12: judging whether the AP has other wireless microphones occupying U-section communication rights, if not, driving the AP to send U-section frequency matching information to the wireless microphones, executing S2, and if so, executing S13;
specifically, when the AP receives a U-section communication frequency matching request of the wireless microphone, whether other wireless microphones occupy the U-section communication right is checked, if not, the AP is driven to send the U-section frequency matching information to the wireless microphone, and if so, the signal intensity of the wireless microphone using the U-section communication right is preempted.
S13: and judging whether the signal intensity of the wireless microphone exceeds a threshold value, if so, driving the AP to send a refusing U-section communication request to the wireless microphone, executing S2, if not, driving the AP to start U-section scanning, obtaining clean frequency standby, and sending U-section frequency matching information to the wireless microphone, and executing S2.
Specifically, if the signal strength of the U section is large enough, namely the communication distance is also close, and the large probability is that the U section is in use, the communication right of the U section is maintained; otherwise, the communication distance is far, the new microphone is directly kicked off to communicate with the AP in the U section. The threshold is dependent on the requirements, here the reference value is-50 dBm; in this embodiment, it is determined whether the signal strength of the line microphone that is occupied first exceeds a threshold, if yes, the AP is driven to send a request for rejecting the U-section communication to the wireless microphone that requests the U-section communication, if no, the line microphone that is occupied first is kicked off, the AP is driven to start the U-section scanning, a clean frequency reserve is obtained, and the U-section frequency pairing information is sent to the wireless microphone.
S2: judging whether the wireless microphone receives the U-section frequency matching information replied by the AP, if not, driving the wireless microphone to disconnect the WiFi connection with the AP, and executing S1, if so, executing S3;
in this embodiment, the step S2 is specifically implemented by the following steps:
s21: judging whether the wireless microphone receives the AP reply information, if not, executing S22, if so, executing S3
Specifically, whether the wireless microphone receives the information replied by the AP is judged, if not, S22 is executed, the request is repeatedly sent for a plurality of times, if yes, S3 is executed, and the U-section frequency matching operation is carried out.
S22: and driving the wireless microphone to repeatedly request the U-section communication for N times to the AP, judging whether the wireless microphone receives the information replied by the AP, if not, driving the wireless microphone to disconnect the WiFi connection with the AP, executing S1, and if so, executing S3.
Specifically, when the wireless microphone cannot receive the U-section frequency matching information replied by the AP, the request information is sent to the AP again, and repeating is performed for 3 times at most, if the wireless microphone still does not receive the information replied by the AP, the wireless microphone is driven to disconnect the WiFi connection with the AP, wiFi scanning is performed again, and if the wireless microphone receives the information replied by the AP, S3 is performed to perform frequency matching operation.
S3: judging whether the information replied by the AP is U-section frequency matching information, if so, driving the wireless microphone and the AP to complete U-section frequency matching operation, establishing U-section communication connection, executing S4, if not, driving the wireless microphone to disconnect the WiFi connection with the AP, storing the MAC code of the AP, and executing S1;
specifically, after the wireless microphone receives the information replied by the AP, if the information fed back to the wireless microphone by the AP is informing the wireless microphone that the current U-section communication right is occupied, the wireless microphone is driven to disconnect the WiFi connection with the AP, the MAC code of the AP is saved, the AP is skipped when scanning is performed next time, S1 is executed, the AP is scanned again through the WiFi, if the information fed back to the wireless microphone by the AP is the U-section frequency matching information, the wireless microphone and the AP are driven to complete the U-section frequency matching operation, and the U-section communication connection is established.
S4: closing WiFi of the wireless microphone, restarting WiFi after the first time interval, and sending query information to the AP;
specifically, after establishing the U section communication between wireless microphone and AP, close wiFi to reduce the energy consumption, prolong the duration of battery. However, in order to realize the functions of interference detection, automatic switching of the U-band frequency when interference is encountered, and allocation of priority usage rights when a plurality of microphones are realized, the WiFi function needs to be periodically turned on to keep WiFi communication with the AP, in this embodiment, the step S4 is specifically realized by the following steps:
s41: restarting WiFi after the WiFi interval of the wireless microphone is closed for the first time, and sending query information to the AP;
specifically, after establishing the U-section communication between the wireless microphone and the AP, the WiFi can be turned off to reduce the energy consumption, and after one second of interval, the wireless microphone is driven to restart the WiFi, and query information is sent to the AP through the WiFi.
S42: judging whether the AP receives the query information of the wireless microphone, if so, executing S5, and if not, executing S43;
specifically, the AP determines whether the wireless microphone transmits the query information to the AP and receives the query information from the wireless microphone, if so, S5 is executed, and if not, S43 is executed.
S43: and judging whether the AP receives the query information of the wireless microphone in the second time, if so, executing S5, and if not, driving the AP to start U-section scanning to obtain clean frequency for standby.
Specifically, if the AP does not receive the query information of the wireless microphone after the first time interval, the AP continues to wait for the second time interval, if the AP still does not receive the query information of the wireless microphone in the second time interval, the AP is driven to start the U-section scanning to obtain clean frequency for standby, the U-section frequency matching is performed with the new wireless, if the AP receives the query information of the wireless microphone in the second time interval, S5 is executed, and whether the current AP has a new wireless microphone to request the U-section communication is determined.
S5: judging whether the AP replies the query information of the wireless microphone, if not, executing S1, and if so, executing S6;
in this embodiment, the step S5 is specifically implemented by the following steps:
s51: the AP is driven to judge whether a new wireless microphone requests U-section communication, if yes, the U-section communication is carried out according to the priority of the wireless microphone, the query information of the wireless microphone is replied, if no, the U-section communication condition is checked, and the query information of the wireless microphone is replied;
specifically, if a new wireless microphone requests the U-section communication from the AP, the U-section communication is performed according to the priority of the wireless microphone, wherein the priority can refer to whether the WiFi intensity meets a preset threshold value, if the priority of the new wireless microphone is higher, the U-section communication with the current wireless microphone is disconnected, the U-section communication with the new wireless microphone is performed, the query information of the current wireless microphone is replied, if the priority of the current wireless microphone is higher, the connection request of the new wireless microphone is refused, the query information of the current wireless microphone is replied, and if no new wireless microphone requests the U-section communication from the AP, the query information of the current wireless microphone is directly replied.
S52: judging whether the wireless microphone acquires the query information replied by the AP, if not, executing S53, and if so, executing S54;
specifically, if the wireless microphone does not receive the inquiry information replied by the AP, S53 is executed to perform the inquiry request for multiple times, and if the wireless microphone receives the inquiry information replied by the AP, S54 is executed to determine the communication right of the U segment.
S53: driving the wireless microphone to repeatedly send query information to the AP for N times, judging whether the wireless microphone acquires the query information replied by the AP, if not, executing S1, and if so, executing S54;
specifically, if the wireless microphone does not receive the query information replied by the AP, repeatedly transmitting N times of query information (N may be 3) to the AP through the wireless microphone, then judging whether the wireless microphone obtains the query information replied by the AP, if the wireless microphone still does not receive the query information replied by the AP, executing S1, scanning the AP again through WiFi, and if the wireless microphone receives the query information replied by the AP at this time, executing S54, and judging the communication right of the U-section
S54: and judging whether the current wireless microphone loses the U-section communication right with the AP, if so, driving the wireless microphone to disconnect the WiFi connection with the AP, storing the MAC code of the AP, and if not, executing S6.
Specifically, according to the query information replied by the AP, judging whether the current wireless microphone loses the U-section communication right with the AP, if so, driving the wireless microphone to disconnect the WiFi connection with the AP, storing the MAC code of the AP, and if not, executing S6.
S6: judging whether the U-section communication is disconnected, if not, executing S4, and if so, executing S7;
specifically, if the current wireless microphone does not lose the communication right of the U section with the AP, judging whether the U section is disconnected, if the U section is normal, returning to S4, driving the wireless microphone to communicate with the AP in the U section, maintaining the periodic WiFi communication, automatically judging the connection state between the wireless microphone and the AP, so as to realize timely scanning to obtain clean frequency and re-frequency alignment, and re-establishing the U section communication.
S7: and judging whether the WiFi intensity of the AP exceeds a threshold value, if so, driving the AP to perform frequency scanning, retransmitting frequency matching information to the wireless microphone, performing U-section frequency matching operation, establishing U-section communication connection, executing S4, and if not, disconnecting the wireless microphone from the WiFi of the AP, and executing S1.
Specifically, when the U-section communication between the wireless microphone and the AP is disconnected, whether the WiFi intensity of the AP exceeds a threshold value (preferably-70 dBm) is further judged, if so, the WiFi signal is strong, the U-section communication is interfered, the AP is driven to perform frequency scanning, frequency matching information is resent to the wireless microphone, U-section frequency matching operation is performed, U-section communication connection is established, S4 is returned, after the wireless microphone and the AP are driven to communicate in the U-section, regular WiFi communication is kept, the connection state between the wireless microphone and the AP is automatically judged, so that clean frequency is obtained through timely scanning and frequency matching is achieved again, the U-section communication is reestablished, if not, the WiFi signal is weak, the WiFi signal is long, the WiFi connection between the wireless microphone and the AP is disconnected, the wireless microphone scans the AP through the WiFi, and new connection is established.
Embodiment two:
a WiFi communication server for automatic frequency pairing of a wireless microphone, comprising a memory and a processor;
a memory for storing program instructions;
and the processor is used for running the program instructions to execute the WiFi communication method for automatic frequency matching of the wireless microphone.
It will be apparent to those skilled in the art from this disclosure that various other changes and modifications can be made which are within the scope of the invention as defined in the appended claims.
Claims (5)
1. A WiFi communication method for automatic frequency alignment of a wireless microphone, comprising the steps of:
s1: the wireless microphone is driven to scan the AP through WiFi, and the U-section communication is requested to the AP which accords with the convention and has the strongest signal strength;
s2: judging whether the wireless microphone receives the U-section frequency matching information replied by the AP, if not, driving the wireless microphone to disconnect the WiFi connection with the AP, and executing S1, if so, executing S3;
s3: judging whether the information replied by the AP is U-section frequency matching information, if so, driving the wireless microphone and the AP to complete U-section frequency matching operation, establishing U-section communication connection, executing S4, if not, driving the wireless microphone to disconnect the WiFi connection with the AP, storing the MAC code of the AP, and executing S1;
s4: closing WiFi of the wireless microphone, restarting WiFi after the first time interval, and sending query information to the AP;
s51: the AP is driven to judge whether a new wireless microphone requests U-section communication, if yes, the U-section communication is carried out according to the priority of the wireless microphone, the query information of the wireless microphone is replied, if no, the U-section communication condition is checked, and the query information of the wireless microphone is replied;
s52: judging whether the wireless microphone acquires the query information replied by the AP, if not, executing S53, and if so, executing S54;
s53: driving the wireless microphone to repeatedly send query information to the AP for N times, judging whether the wireless microphone acquires the query information replied by the AP, if not, executing S1, and if so, executing S54;
s54: judging whether the current wireless microphone loses the U-section communication right with the AP, if so, driving the wireless microphone to disconnect the WiFi connection with the AP, storing the MAC code of the AP, and if not, executing S6;
s6: judging whether the U-section communication is disconnected, if not, executing S4, and if so, executing S7;
s7: and judging whether the WiFi intensity of the AP exceeds a threshold value, if so, driving the AP to perform frequency scanning, retransmitting frequency matching information to the wireless microphone, performing U-section frequency matching operation, establishing U-section communication connection, executing S4, and if not, disconnecting the wireless microphone from the WiFi of the AP, and executing S1.
2. The WiFi communication method for automatic frequency pairing of wireless microphones according to claim 1, further comprising the steps between S1 and S2 of:
s11: driving the AP to start the U-section scanning to obtain clean frequency for standby so that the existing clean frequency is available when a frequency matching request of wireless microphone U-section communication is received;
s12: judging whether the AP has other wireless microphones occupying U-section communication rights, if not, driving the AP to send U-section frequency matching information to the wireless microphones, executing S2, and if so, executing S13;
s13: and judging whether the signal intensity of the wireless microphone exceeds a threshold value, if so, driving the AP to send a refusing U-section communication request to the wireless microphone, executing S2, if not, driving the AP to start U-section scanning, obtaining clean frequency standby, and sending U-section frequency matching information to the wireless microphone, and executing S2.
3. The WiFi communication method for automatic frequency pairing of wireless microphones according to claim 1, wherein S4 is specifically implemented by the following steps:
s41: restarting WiFi after the WiFi interval of the wireless microphone is closed for the first time, and sending query information to the AP;
s42: judging whether the AP receives the query information of the wireless microphone, if so, executing S5, and if not, executing S43;
s43: and judging whether the AP receives the query information of the wireless microphone in the second time, if so, executing S5, and if not, driving the AP to start U-section scanning to obtain clean frequency for standby.
4. The WiFi communication method for automatic frequency pairing of wireless microphones according to claim 1, wherein S2 is specifically implemented by the following steps:
s21: judging whether the wireless microphone receives the AP reply information, if not, executing S22, and if so, executing S3;
s22: and driving the wireless microphone to repeatedly request the U-section communication for N times to the AP, judging whether the wireless microphone receives the information replied by the AP, if not, driving the wireless microphone to disconnect the WiFi connection with the AP, executing S1, and if so, executing S3.
5. A wiFi communication server for wireless microphone is automatic to frequency, its characterized in that: comprising a memory and a processor;
a memory for storing program instructions;
a processor for executing the program instructions to perform the WiFi communication method for wireless microphone automatic frequency pairing according to any of claims 1-4.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH066751A (en) * | 1992-06-19 | 1994-01-14 | Olympus Optical Co Ltd | Fm receiver-recorder and fm transmitter |
| CN105430541A (en) * | 2015-10-28 | 2016-03-23 | 杨子忠 | Wireless microphone automatic frequency matching method and device |
| CN214851794U (en) * | 2021-06-08 | 2021-11-23 | 宁波升维信息技术有限公司 | System for automatically switching channels of three types of microphones |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH066751A (en) * | 1992-06-19 | 1994-01-14 | Olympus Optical Co Ltd | Fm receiver-recorder and fm transmitter |
| CN105430541A (en) * | 2015-10-28 | 2016-03-23 | 杨子忠 | Wireless microphone automatic frequency matching method and device |
| CN214851794U (en) * | 2021-06-08 | 2021-11-23 | 宁波升维信息技术有限公司 | System for automatically switching channels of three types of microphones |
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