CN116017635A - Frequency scanning method and server for digital U-section wireless microphone - Google Patents
Frequency scanning method and server for digital U-section wireless microphone Download PDFInfo
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- CN116017635A CN116017635A CN202211621848.7A CN202211621848A CN116017635A CN 116017635 A CN116017635 A CN 116017635A CN 202211621848 A CN202211621848 A CN 202211621848A CN 116017635 A CN116017635 A CN 116017635A
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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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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
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Abstract
The invention discloses a frequency scanning method and a server for a digital U-section wireless microphone, wherein the method comprises the following steps: s1: driving the wireless microphone to scan signals of surrounding APs, and screening the APs with the maximum current signal strength; s2: the wireless microphone is driven to interact with the AP through the WIFI, and complete frequency matching operation is carried out; s3: driving the AP to perform frequency scanning so as to acquire the signal intensity of each frequency point in the interval; s4: judging whether the signal intensity of each frequency point in the acquired interval is normally distributed by taking the current communication frequency as the center, if not, carrying out frequency scanning, reselecting the communication frequency, executing S3, and if so, executing S3. In the invention, the AP with the maximum current signal strength is selected by WiFi scanning the AP, wireless interference signals in the current environment are avoided, and the frequency with weak interference signals is selected as the communication frequency, so that the communication is optimized.
Description
Technical Field
The invention relates to the technical field of wireless communication, in particular to a frequency scanning method and a server for a digital U-section wireless microphone.
Background
With the development of technology, the conventional wired conference room cannot meet the requirements of users on various types of conferences, and particularly, the conventional wired conference room needs a step of equipment wiring, and a large amount of materials (cables, disposable consumables and the like) are consumed in the wiring process, so that manpower (the users need to perform wiring according to conference conditions) and complicated wiring seriously affect the beauty of the conference.
Therefore, the wireless conference device becomes a big spot at present, especially a wireless microphone, but the existing wireless microphone can only scan specific frequency to communicate, and can not avoid the interfered frequency band before use, and the frequency scanning, frequency cutting and frequency matching must be performed by relying on manual operation.
Disclosure of Invention
In order to overcome the defects of the prior art, one of the purposes of the invention is to provide a frequency scanning method for a digital U-section wireless microphone, which can solve the problems that the existing wireless microphone can only scan specific frequency for communication and is required to rely on manual operation for frequency scanning, frequency cutting and frequency matching.
The second purpose of the invention is to provide a frequency scanning server for a digital U-section wireless microphone, which can solve the problems that the existing wireless microphone can only scan specific frequency for communication and must rely on manual operation for frequency scanning, frequency cutting and frequency matching.
In order to achieve one of the above purposes, the technical scheme adopted by the invention is as follows:
a frequency scanning method for a digital U-section wireless microphone, comprising the steps of:
s1: driving the wireless microphone to scan signals of surrounding APs, and screening the APs with the maximum current signal strength;
s2: the wireless microphone is driven to interact with the AP through the WIFI, and complete frequency matching operation is carried out;
s3: driving the AP to perform frequency scanning so as to acquire the signal intensity of each frequency point in a preset interval;
s4: judging whether the signal intensity of each frequency point in the acquired interval is normally distributed by taking the current communication frequency as the center, if not, carrying out frequency scanning, reselecting the communication frequency, executing S3, and if so, executing S3.
Preferably, the step S1 is specifically implemented by the following steps:
s11: driving the wireless microphone to scan for signals of the surrounding APs;
s12: judging whether surrounding APs exist or not according with the agreed SSID, if not, executing S11, if so, screening the AP with the maximum current signal strength, and executing S2;
preferably, the step S2 is specifically implemented by the following steps:
s21: the wireless microphone is driven to interact with the AP with the maximum current signal strength through WIFI, and U-section communication is requested;
s22: the AP is driven to send the U-section frequency matching information to the wireless microphone through WiFi.
Preferably, the step S3 is specifically implemented by the following steps:
the AP is driven to perform interference detection, and frequency scanning is performed through a standby frequency scanning module of the AP, so that the signal intensity of each frequency point in a preset interval is obtained.
Preferably, the step S4 is specifically implemented by the following steps:
s41: judging whether the signal intensity of each frequency point in the preset interval is normally distributed by taking the current communication frequency as the center or not, if not, carrying out frequency scanning, reselecting the communication frequency, executing S3, and if so, executing S42;
s42: judging whether the signal intensity in the preset interval is suddenly reduced, if not, executing S3, and if so, executing S43;
s43: driving a standby frequency scanning module of the AP to perform frequency scanning, and reselecting the communication frequency;
s44: and judging whether the signal intensity in the preset interval has a sudden increase phenomenon, if so, executing S3, and if not, prompting the current environment that the signal is weak to the outside.
In order to achieve the second purpose, the technical scheme adopted by the invention is as follows:
a frequency scanning server for a digital U-section wireless microphone, characterized by: comprising a memory and a processor;
a memory for storing program instructions;
and a processor for executing the program instructions to perform the frequency scanning method for a digital U-band wireless microphone as described above.
Compared with the prior art, the invention has the beneficial effects that: the wireless microphone is driven to carry out frequency scanning, so that the AP with the maximum current signal intensity conforming to normal distribution is selected to avoid wireless interference signals of the current environment, and the frequency with weak interference signals is selected as the communication frequency, so that communication is optimized, and the interfered frequency band is avoided before use.
Drawings
Fig. 1 is a flow chart of a frequency scanning method for a digital U-section wireless microphone 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, a main frequency scanning module and a standby frequency scanning module are arranged in an AP, and the preset interval is a range which takes the frequency of the AP with the maximum current signal intensity as the center and extends up and down by 0.3 MHz.
Embodiment one:
as shown in fig. 1, a frequency scanning method for a digital U-section wireless microphone includes the steps of:
s1: driving the wireless microphone to scan signals of surrounding APs, and screening the APs with the maximum current signal strength;
specifically, the AP (receiver) with the appropriate and strongest screening signal performs a U-section communication connection (where the AP with the largest current signal strength refers to the AP with the largest signal strength obtained by scanning a wireless microphone in a certain channel in the current environment), and the S1 is specifically implemented by the following steps:
s11: driving the wireless microphone to scan for signals of the surrounding APs;
specifically, the wireless microphone starts WIFI scanning, scans signals of surrounding APs, and obtains information such as SSID (WIFI name) and signal intensity of the APs in the current environment.
S12: judging whether surrounding APs exist or not according with the agreed SSID, if not, executing S11, if so, screening the AP with the maximum current signal strength, and executing S2;
specifically, it is determined whether the SSID of the scanned surrounding APs is an SSID that meets a contract, for example, the contract wireless microphone is to connect to an AP having an SSID of "123", if the SSID of the scanned surrounding APs is "124" or "134" (i.e., the SSID of the surrounding APs does not meet the contract), connection is not established temporarily, S1 is returned, the signal of the surrounding APs is rescanned, if at least one SSID of the scanned surrounding APs is "123", the AP having the largest current signal strength is selected, and S2 is executed.
S2: the wireless microphone is driven to interact with the AP through the WIFI, and complete frequency matching operation is carried out;
specifically, the wireless microphone is driven to be connected with the AP through WIFI, frequency matching information interaction is carried out, complete frequency matching operation is carried out, and the S2 is specifically realized by the following steps:
s21: the wireless microphone is driven to interact with the AP with the maximum current signal strength through WIFI, and U-section communication is requested;
specifically, the wireless microphone is driven to select and connect with the AP with the maximum current signal strength, and the U-section communication is requested to the AP through WiFi communication.
S22: the AP is driven to send the U-section frequency matching information to the wireless microphone through WiFi.
Specifically, the AP is driven to send U-section frequency matching information to the wireless microphone through WiFi, and the microphone and the AP perform complete frequency matching operation.
S3: driving the AP to perform frequency scanning so as to acquire the signal intensity of each frequency point in a preset interval;
specifically, frequency scanning is performed through a standby frequency scanning module of the AP according to a preset time interval (the time interval may be 0), so as to obtain signal strength of each frequency point in the preset interval, thereby performing interference detection, in this embodiment, the step S3 is specifically implemented by the following steps:
specifically, when interference detection is performed, frequency scanning is performed through a standby frequency scanning module of the AP, and signal strength of each frequency point in a preset interval is obtained.
S4: judging whether the signal intensity of each frequency point in the preset interval is normally distributed by taking the current communication frequency as the center or not, if not, carrying out frequency scanning, reselecting the communication frequency, executing S3, and if so, executing S3.
Specifically, whether interference exists or not is determined by judging the distribution condition of the signal intensity of each frequency point in the preset interval, and in this embodiment, the step S4 is specifically implemented by the following steps:
s41: judging whether the signal intensity of each frequency point in the preset interval is normally distributed by taking the current communication frequency as the center or not, if not, carrying out frequency scanning, reselecting the communication frequency, executing S3, and if so, executing S42;
specifically, whether the signal intensity of each frequency point in the preset interval is normally distributed by taking the current communication frequency as the center is judged (wherein mu is the current communication frequency, sigma=the current communication frequency is +/-0.3 MHz), if not, the current communication frequency is judged to be subjected to adjacent frequency interference, a standby frequency scanning module is driven to perform frequency scanning, a clean frequency is selected again to serve as a U-section communication frequency, so that the main frequency scanning module establishes connection with a wireless microphone through the clean frequency, S3 is executed again, adjacent frequency interference detection is carried out, if yes, the current communication frequency is judged to be free of adjacent frequency interference, and S3 can be executed again.
S42: judging whether the signal intensity in the preset interval is suddenly reduced, if not, executing S3, and if so, executing S43;
preferably, when it is determined that the current communication frequency has no adjacent channel interference, co-channel interference detection may be further performed, specifically, it is determined whether a sudden decrease phenomenon occurs in signal strength in a preset interval (a range of 0.3MHz with the communication frequency as the center, where a radio frequency bandwidth of a general U-section microphone is 0.3 MHz), if so, it is determined that co-channel interference may exist, and S43 is performed, if not, it is determined that co-channel interference does not exist, and S3 is performed.
S43: driving a standby frequency scanning module of the AP to perform frequency scanning, and reselecting the communication frequency;
specifically, when the signal strength in the preset interval (the range of 0.3MHz with the communication frequency as the center, wherein the radio frequency bandwidth of a general U-section microphone is 0.3 MHz) is suddenly reduced, it is determined that the signal strength is weakened due to the existence of co-frequency interference or shielding of an antenna, and the like, a standby frequency scanning module is driven to perform frequency scanning, and clean frequency is selected again to be used as the U-section communication frequency, so that the main frequency scanning module is connected with the wireless microphone through the clean frequency.
S44: and judging whether the signal intensity in the preset interval has a sudden increase phenomenon, if so, executing S3, and if not, prompting the current environment that the signal is weak to the outside.
Specifically, after the clean frequency is selected again as the U-section communication frequency, because the clean frequency point after the frequency scanning is replaced under the condition that the signal of the original communication frequency point is weak, if the signal becomes strong, the original frequency point is interfered, otherwise, the signal strength in the preset interval (in the 0.3MHz range with the communication frequency as the center) is judged to be suddenly increased or not because of the weak current environment signal caused by the reasons of distance and the like, if so, the original U-section communication frequency is interfered by the same frequency, the current U-section communication frequency is the clean frequency, and the execution is returned to S3, if not, the signal is influenced by the external environment, the signal is caused, and the prompt is sent to the outside through the indication lamp or the voice prompt, so that the user is prompted to currently accept the signal if the use environment needs to be improved.
Embodiment two:
a frequency scanning server for a digital U-section wireless microphone, comprising a memory and a processor;
a memory for storing program instructions;
a processor configured to execute the program instructions to perform the frequency scanning method for a digital U-band wireless microphone as described in embodiment one.
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 (6)
1. A frequency scanning method for a digital U-section wireless microphone, comprising the steps of:
s1: driving the wireless microphone to scan signals of surrounding APs, and screening the APs with the maximum current signal strength;
s2: the wireless microphone is driven to interact with the AP through the WIFI, and complete frequency matching operation is carried out;
s3: driving the AP to perform frequency scanning so as to acquire the signal intensity of each frequency point in a preset interval;
s4: judging whether the signal intensity of each frequency point in the acquired interval is normally distributed by taking the current communication frequency as the center, if not, carrying out frequency scanning, reselecting the communication frequency, executing S3, and if so, executing S3.
2. The method for frequency scanning of a digital U-section wireless microphone according to claim 1, wherein S1 is implemented by:
s11: driving the wireless microphone to scan for signals of the surrounding APs;
s12: and judging whether surrounding APs exist according with the agreed SSID, if not, executing S11, if so, screening the AP with the maximum current signal strength, and executing S2.
3. The method for frequency scanning of a digital U-section wireless microphone according to claim 1, wherein S2 is implemented by:
s21: the wireless microphone is driven to interact with the AP with the maximum current signal strength through WIFI, and U-section communication is requested;
s22: the AP is driven to send the U-section frequency matching information to the wireless microphone through WiFi.
4. The method for frequency scanning of a digital U-section wireless microphone according to claim 1, wherein S3 is implemented by:
the AP is driven to perform interference detection, and frequency scanning is performed through a standby frequency scanning module of the AP, so that the signal intensity of each frequency point in a preset interval is obtained.
5. A frequency scanning method for a digital U-section wireless microphone according to claim 3, wherein said S4 is implemented by:
s41: judging whether the signal intensity of each frequency point in the preset interval is normally distributed by taking the current communication frequency as the center or not, if not, carrying out frequency scanning, reselecting the communication frequency, executing S3, and if so, executing S42;
s42: judging whether the signal intensity in the preset interval is suddenly reduced, if not, executing S3, and if so, executing S43;
s43: driving a standby frequency scanning module of the AP to perform frequency scanning, and reselecting the communication frequency;
s44: and judging whether the signal intensity in the preset interval has a sudden increase phenomenon, if so, executing S3, and if not, prompting the current environment that the signal is weak to the outside.
6. A frequency scanning server for a digital U-section wireless microphone, characterized by: comprising a memory and a processor;
a memory for storing program instructions;
a processor for executing the program instructions to perform the frequency scanning method for a digital U-section wireless microphone according to any of claims 1-5.
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