CN110784294A - Background sound self-adaptive sound wave distribution network method, system, equipment and storage medium - Google Patents
Background sound self-adaptive sound wave distribution network method, system, equipment and storage medium Download PDFInfo
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- H—ELECTRICITY
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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Abstract
The application relates to a background sound self-adaptive sound wave distribution network method, a system, equipment and a storage medium. The method comprises the following steps: acquiring background sound signals in a distribution network environment, acquiring background sound frequency information according to the background sound signals, finding a channel with the least background sound frequency information distribution in each transmission channel, and taking the channel as a transmission channel; the distribution network information required by the distribution network target equipment is converted into sound waves and then is sent to the distribution network target equipment through the transmission channel, and the distribution network target equipment can obtain the distribution network information according to the received sound waves to complete distribution network. By adopting the method, the interference of background sound to sound waves bearing the distribution network information can be reduced, the accuracy of the distribution network information acquired by the distribution network target equipment is improved, and the success rate of the distribution network is further improved.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a method, a system, a device, and a storage medium for an acoustic wave network.
Background
With the development of wireless technology, intelligent internet of things equipment based on a wireless distribution network is widely applied. The intelligent Internet of things equipment is connected to the access point through the wireless link and then connected to the Internet to realize functions of the intelligent Internet of things equipment. Most of intelligent internet of things devices such as intelligent cameras and intelligent sound boxes are free of external input devices such as keyboards, and the network distribution must be carried out through other auxiliary methods or auxiliary devices. In the distribution network method for the equipment, the smartconfig distribution network success rate is low, and extra special hardware is needed for NFC and Bluetooth to increase the production cost, so that the sound wave distribution network scheme is widely applied, and the sound wave distribution network refers to that distribution network information is transmitted to equipment needing distribution in a sound wave mode.
However, there are many background sounds in the frequency band of the sound waves used for transmitting the distribution network information, such as human speaking sound, television sound, animal calling sound, vehicle sound, and so on. The background sound and the sound wave carrying the distribution network information are overlapped with each other at a high probability, and at the moment, the sound of the distribution network information is difficult to be correctly separated by the equipment to be distributed, so that the distribution network fails.
Disclosure of Invention
Therefore, it is necessary to provide a background sound adaptive sound wave distribution network method, system, device and storage medium that can reduce the influence of background sound on the sound wave carrying the distribution network information and improve the distribution network success rate, in view of the above technical problems.
In order to achieve the purpose, the invention adopts the following background sound self-adaptive sound wave distribution network method, which comprises the following steps:
a background sound adaptive sound wave network distribution method comprises the following steps:
acquiring background sound signals of the environment where the distribution network auxiliary equipment and the distribution network target equipment are located, wherein the distribution network auxiliary equipment is used for assisting the distribution network target equipment to carry out distribution;
acquiring background sound frequency information according to the background sound signal, acquiring a channel with the least background sound frequency distribution according to the background sound frequency information, and setting the channel as a transmission channel;
the method comprises the steps of obtaining distribution network information aiming at distribution network target equipment, converting the distribution network information into sound waves, and sending the sound waves to the distribution network target equipment through the transmission channel, wherein the sound waves are used for distribution network of the distribution network target equipment.
The background sound self-adaptive sound wave distribution network method acquires background sound signals in the distribution network environment and obtains background sound frequency information according to the background sound signals, finds a channel with the least distribution of the background sound frequency information in each transmission channel, and takes the channel as the transmission channel; the distribution network information required by the distribution network target equipment is converted into sound waves and then is sent to the distribution network target equipment through the transmission channel, and the distribution network target equipment can obtain the distribution network information according to the received sound waves to complete distribution network. According to the method, the distribution network auxiliary equipment sends the distribution network information to the distribution network target equipment through the channel with the least background sound interference, so that the interference of background sound on sound waves bearing the distribution network information is reduced, the accuracy of the distribution network information acquired by the distribution network target equipment is improved, and the success rate of distribution networks is further improved.
In one embodiment, acquiring a channel with the least background sound frequency distribution according to the background sound frequency information, and setting the channel as a transmission channel includes:
and carrying out channel division on the sound wave frequency band for data transmission to obtain a plurality of alternative channels, comparing the distribution situation of background sound frequency in the frequency range of the plurality of alternative channels, and taking the alternative channel with the minimum background sound frequency distribution as a transmission channel.
In one embodiment, acquiring a channel with the least background sound frequency distribution according to the background sound frequency information, and setting the channel as a transmission channel includes:
and when the channel with the least background sound frequency distribution is more than one channel, selecting the channel with the frequency band with the least stimulation to the human ear as the transmission channel.
In one embodiment, converting the distribution network information into sound waves includes:
and carrying out coding modulation on the lead code and the distribution network information on a transmission channel to obtain sound waves, wherein the lead code comprises an identifier of the transmission channel, and the distribution network information comprises a service set identifier and a password.
In one embodiment, the transmitting the sound wave to the distribution network target device through the transmission channel includes:
in case the background sound intensity in the transmission channel is smaller than a preset threshold value, the amplitude of the sound wave is reduced, i.e. the loudness of the sound is reduced.
In one embodiment, after acquiring a channel with the least background sound frequency distribution according to the background sound frequency information and setting the channel as a transmission channel, the method further includes:
recording the transmission channel as a first channel, judging whether the background sound in the first channel exceeds a preset interference threshold value when the distribution network target equipment is assisted to carry out distribution again, and if not, selecting the first channel as the transmission channel.
The background sound self-adaptive sound wave distribution network method comprises the steps of carrying out channel division on a sound wave frequency band used for data transmission to obtain a plurality of alternative channels, and comparing the distribution situation of background sound frequency in the plurality of alternative channels to obtain an alternative channel with the least background sound frequency distribution as a transmission channel; when the channel with the least background sound frequency distribution is more than one, selecting the channel with the frequency band with the least stimulation to the human ear as a transmission channel; the sent sound waves are added with lead codes besides distribution network information such as service set identification and passwords required by the distribution network target equipment, and the lead codes comprise identification of transmission channels and can help the distribution network target equipment to identify the transmission channels; reducing the amplitude of the transmitted sound wave under the condition that the background sound intensity in the transmission channel is smaller than a preset threshold value; and after the transmission channel is selected, recording that the transmission channel is a first channel, judging whether the background sound in the first channel exceeds a preset interference threshold value when the distribution network target equipment is assisted again to carry out distribution, and if not, selecting the first channel as the transmission channel. According to the method, the transmitted sound wave background sound has small interference, and the stimulation to human ears is reduced under the condition that the condition allows; the lead code is added to the sent sound wave, the distribution network target equipment can identify a transmission channel according to the lead code, and the distribution network information can be recovered more accurately; in addition, the transmission channel is recorded, the transmission channel is preferentially considered when the network is distributed again, and when the network is connected and disconnected unexpectedly and needs to be distributed again, the efficiency of the distribution network can be improved.
A background sound adaptive sound wave network distribution method comprises the following steps:
receiving sound waves, and identifying a transmission channel through the sound waves, wherein the transmission channel is a channel which is obtained by acquiring background sound signals of the environment where the distribution network auxiliary equipment and the distribution network target equipment are located by the distribution network auxiliary equipment, acquiring background sound frequency information according to the background sound signals, and acquiring the background sound frequency with the minimum distribution according to the background sound frequency information; and acquiring distribution network information from the sound wave according to the transmission channel, and completing distribution network according to the distribution network information.
The background sound self-adaptive sound wave distribution network method receives sound waves, identifies a transmission channel through the sound waves, acquires distribution network information from the sound waves according to the transmission channel, and completes distribution network according to the distribution network information, wherein the transmission channel acquires background sound signals of environments where distribution network auxiliary equipment and distribution network target equipment are located for the distribution network auxiliary equipment, acquires background sound frequency information according to the background sound signals, and acquires a channel with the least distribution of background sound frequency according to the background sound frequency information. By the method, background sound interference when the distribution network target equipment receives the distribution network information is reduced, the accuracy of the distribution network information obtained after demodulation and decoding is improved, and the success rate of the distribution network is improved.
In one embodiment, acquiring distribution network information from the sound wave according to the transmission channel, and after completing distribution of the network according to the distribution network information, the method further includes:
recording that the transmission channel is a second channel, judging whether the second channel is the transmission channel or not through the received sound wave when receiving the distribution network information of the distribution network auxiliary equipment again, and receiving the sound wave through the transmission channel if the second channel is the transmission channel.
In one embodiment, identifying the transmission channel by acoustic waves includes:
the method comprises the steps of identifying a lead code in a received sound wave, traversing all channels, and judging that a channel corresponding to the lead code is a transmission channel, wherein the lead code comprises an identification of the transmission channel.
According to the background sound self-adaptive sound wave distribution network method, after the distribution network target equipment receives the sound wave sent by the distribution network auxiliary equipment, the lead codes in the received sound wave are identified, all channels are traversed, the channels corresponding to the lead codes are identified, and the distribution network target equipment can demodulate and decode the received sound wave according to the channels, so that distribution network information can be obtained more accurately; in addition, the identified transmission channel is recorded, the channel is preferentially identified as the transmission channel when the distribution network is distributed again, and the method can improve the efficiency of the distribution network when the distribution network is connected and disconnected unexpectedly and needs to be distributed again.
A background sound adaptive acoustic wave distribution network system, comprising:
the background sound processing module is used for acquiring background sound signals of environments where the distribution network auxiliary equipment and the distribution network target equipment are located, wherein the distribution network auxiliary equipment is used for assisting the distribution network target equipment to carry out distribution;
the channel selection module is used for acquiring background sound frequency information according to the background sound signal, acquiring a channel with the least background sound frequency distribution according to the background sound frequency information, and setting the channel as a transmission channel;
the sound wave sending module is used for obtaining distribution network information aiming at the distribution network target equipment, converting the distribution network information into sound waves and sending the sound waves to the distribution network target equipment through a transmission channel, wherein the sound waves are used for the distribution network target equipment to carry out distribution.
In one embodiment, the channel selection module is further configured to perform channel division on a sound wave frequency band used for data transmission to obtain a plurality of candidate channels, compare distribution conditions of background sound frequencies in a frequency range of the plurality of candidate channels, and use the candidate channel with the smallest background sound frequency distribution as the transmission channel.
In one embodiment, the channel selection module is further configured to select, as the transmission channel, a channel in which a frequency band with the least stimulation to the human ear is located when the channel with the least background sound frequency distribution is greater than one.
In one embodiment, the sound wave sending module is further configured to perform code modulation on a transmission channel by using a preamble and distribution network information to obtain the sound wave, where the preamble includes an identifier of the transmission channel, and the distribution network information includes a service set identifier and a password.
In one embodiment, the sound wave sending module is further configured to reduce the amplitude of the sound wave if the background sound intensity in the transmission channel is smaller than a preset threshold.
In one embodiment, the channel selection module is further configured to record that the transmission channel is the first channel, determine whether a background sound in the first channel exceeds a preset interference threshold when the distribution network target device is assisted to perform distribution again, and select the first channel as the transmission channel if the background sound in the first channel does not exceed the preset interference threshold.
A background sound adaptive acoustic wave distribution network system, comprising:
the sound wave acquisition module is used for receiving sound waves;
the channel identification module is used for identifying a transmission channel through sound waves, wherein the transmission channel is a channel which is obtained by acquiring background sound signals of the environment where the distribution network auxiliary equipment and the distribution network target equipment are located by the distribution network auxiliary equipment, acquiring background sound frequency information according to the background sound signals, and acquiring the background sound frequency with the minimum distribution according to the background sound frequency information;
and the distribution network module is used for acquiring distribution network information from the sound wave according to the transmission channel and completing distribution network according to the distribution network information.
In one embodiment, the channel identification module is further configured to record that the transmission channel is a second channel, and when the distribution network information of the distribution network auxiliary device is received again, determine whether the second channel is the transmission channel according to the received sound wave, and if so, receive the sound wave through the transmission channel.
In one embodiment, the channel identification module is further configured to identify a preamble in the received sound wave, traverse all channels, and determine that a channel corresponding to the preamble is a transmission channel, where the preamble includes an identifier of the transmission channel.
A background sound self-adaptive sound wave distribution network device comprises a first intelligent device, wherein the first intelligent device acquires background sound signals of environments where a distribution network auxiliary device and a distribution network target device are located; acquiring background sound frequency information according to the background sound signal, acquiring a channel with the least background sound frequency distribution according to the background sound frequency information, and setting the channel as a transmission channel; the method comprises the steps of obtaining distribution network information aiming at distribution network target equipment, converting the distribution network information into sound waves, and sending the sound waves to the distribution network target equipment through a transmission channel, wherein the distribution network auxiliary equipment is used for assisting the distribution network target equipment to carry out distribution network, and the sound waves are used for the distribution network target equipment to carry out distribution network.
A background sound self-adaptive sound wave distribution network device comprises a second intelligent device, wherein the second intelligent device receives sound waves and identifies a transmission channel through the sound waves, wherein the transmission channel is a channel which is used for acquiring background sound signals of environments where distribution network auxiliary devices and distribution network target devices are located by the distribution network auxiliary devices, acquiring background sound frequency information according to the background sound signals and acquiring the background sound frequency distribution with the least background sound frequency according to the background sound frequency information; and acquiring distribution network information from the sound wave according to the transmission channel, and completing distribution network according to the distribution network information.
A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the method for acoustic distribution network with background sound adaptation as described above.
The background sound self-adaptive sound wave distribution network system, the device and the storage medium acquire background sound frequency information according to background sound signals in a distribution network environment, find a channel with the least distribution of the background sound frequency information in each transmission channel, and use the channel as a transmission channel; the distribution network information required by the distribution network target equipment is converted into sound waves and then is sent to the distribution network target equipment through the transmission channel, and the distribution network target equipment can obtain the distribution network information according to the received sound waves to complete distribution network. According to the method, the distribution network auxiliary equipment sends the distribution network information to the distribution network target equipment through the channel with the least background sound interference, so that the interference of background sound on sound waves bearing the distribution network information is reduced, the accuracy of the distribution network information acquired by the distribution network target equipment is improved, and the success rate of distribution networks is further improved.
Drawings
FIG. 1 is a flow diagram of a method for acoustic distribution of background acoustic adaptation in one embodiment;
FIG. 2 is a flow chart of a method for acoustic distribution of background acoustic adaptation in another embodiment;
FIG. 3 is a diagram of a background acoustic adaptive acoustic wave distribution network system in one embodiment;
FIG. 4 is a schematic diagram of a background acoustic adaptive acoustic wave distribution network system in another embodiment;
FIG. 5 is a schematic diagram of a background acoustic adaptive acoustic wave distribution network device in one embodiment;
fig. 6 is a schematic diagram of a background sound adaptive acoustic wave distribution network device in another embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
The background sound self-adaptive sound wave network distribution method can be applied to an application environment that network distribution target equipment is connected to a wireless access point through a wireless link under the assistance of network distribution auxiliary equipment, and the network distribution target equipment can be intelligent Internet of things equipment such as an intelligent camera and an intelligent sound box.
In one embodiment, as shown in fig. 1, a background sound adaptive acoustic wave distribution network method is provided, which includes the following steps:
step S102, acquiring background sound signals of the environment where the distribution network auxiliary equipment and the distribution network target equipment are located, wherein the distribution network auxiliary equipment is used for assisting the distribution network target equipment to carry out distribution.
In this step, the distribution network auxiliary device collects background sound signals in the environment where the device and the distribution network target device are located, such as human speaking sound, music sound, television sound or sound generated by vehicle passing, and the like, where the background sound signals are the set of all background sounds in the environment, and do not refer to one of the background sounds listed above.
Step S104, obtaining background sound frequency information according to the background sound signal, obtaining a channel with the least background sound frequency distribution according to the background sound frequency information, and setting the channel as a transmission channel.
In this step, the frequency distribution of the background sound is obtained according to the collected background sound signal, for example, a spectrogram of the background sound signal is obtained, then a channel with the minimum background sound distribution is found from available channels, and the channel is set as a transmission channel.
Step S106, obtaining distribution network information aiming at the distribution network target equipment, converting the distribution network information into sound waves, and sending the sound waves to the distribution network target equipment through the transmission channel, wherein the sound waves are used for the distribution network target equipment to carry out distribution.
In this step, after the distribution network auxiliary device acquires the distribution network information required by the distribution network target device, the distribution network auxiliary device encodes and modulates the distribution network device into a section of sound wave, and sends the sound wave to the distribution network target device through the transmission channel.
In this embodiment, the distribution network auxiliary device acquires background sound in a distribution network environment and obtains a frequency distribution condition of the background sound, compares all available channels, selects a channel with the least background sound distribution as a transmission channel, modulates distribution network information required by a distribution network target device, such as a Service Set Identifier (SSID) and a password of a wireless access point, into a section of sound wave, and transmits the sound wave to the distribution network target device through the transmission channel. Through the embodiment, the distribution network auxiliary equipment sends the distribution network information to the distribution network target equipment through the channel with the least background sound interference, so that the interference of background sound to sound waves bearing the distribution network information is reduced, the accuracy of the distribution network information acquired by the distribution network target equipment is improved, and the success rate of distribution networks is further improved.
In one embodiment, acquiring a channel with the least background sound frequency distribution according to the background sound frequency information, and setting the channel as a transmission channel includes:
and carrying out channel division on the sound wave frequency band for data transmission to obtain a plurality of alternative channels, comparing the distribution situation of background sound frequency in the frequency range of the plurality of alternative channels, and taking the alternative channel with the minimum background sound frequency distribution as a transmission channel.
In the embodiment, the channels are divided according to the sound wave frequency band capable of being used for data transmission, the channels can be divided in various modes, and can be reasonably divided according to actual application scenes such as distribution network environment, equipment power and the like, as long as the distribution network auxiliary equipment and the distribution network target equipment are preset to be the same parameters. For example, one preferred implementation is shown in table 1:
TABLE 1
| Channel numbering | Frequency range |
| 1 | 1001Hz～3000Hz |
| 2 | 3001Hz～5000Hz |
| 3 | 5001Hz～7000Hz |
| 4 | 7001Hz～9000Hz |
| 5 | 9001Hz～11000Hz |
| 6 | 11001Hz～13000Hz |
| 7 | 13001Hz～15000Hz |
| 8 | 15001Hz～17000Hz |
| 9 | 17001Hz～19000Hz |
The division conforms to the frequency range of sound waves which can be emitted by the sound emitting unit of the general distribution network auxiliary equipment and can be identified by the sound collecting unit of the distribution network target equipment. Dividing the channels according to the actual application environment is beneficial to finding out the channel with small background acoustic interference in the environment, and is beneficial to transmitting the distribution network information more accurately and without interference.
In one embodiment, acquiring a channel with the least background sound frequency distribution according to the background sound frequency information, and setting the channel as a transmission channel includes:
and when the channel with the least background sound frequency distribution is more than one channel, selecting the channel with the frequency band with the least stimulation to the human ear as the transmission channel.
In this embodiment, when there is more than one channel with the least background sound frequency distribution, the channel with the frequency band with the least stimulus to the human ear is selected as the transmission channel, for example, sound in some frequency bands may bring a sharp and harsh feeling to the human, and when the channel with the least background sound frequency distribution includes the channel in the frequency band and the channels in other frequency bands, the channels in other frequency bands are preferably selected. Through the embodiment, a preferential selection scheme is provided when more than one channel with the least background sound frequency distribution is provided, and meanwhile, the background sound self-adaptive distribution network scheme is more practical.
In one embodiment, converting distribution network information into sound waves comprises:
and carrying out coding modulation on the lead code and the distribution network information on a transmission channel to obtain sound waves, wherein the lead code comprises an identifier of the transmission channel, and the distribution network information comprises a service set identifier and a password.
In this embodiment, when the distribution network accessory transmits the distribution network information, a preamble is also added to the transmitted content, where the preamble is identification information with a fixed length, and is used to identify a channel used for transmission, for example: assuming that a channel N is selected, the channel frequency range is MHz-M +2000Hz, each 500Hz channel is divided into one frequency point, for example, MHz is a frequency point A, M +500Hz is a frequency point B, M +1000Hz is a frequency point C, M +1500Hz is a frequency point D, and M +2000Hz is a frequency point E; assuming that the preamble is ABCDAEBCDDE, each frequency point lasts for 50 milliseconds, and a period of 500ms sound wave can be formed. And adding the sound wave modulated by the lead code to the sound wave of the distribution network information, and sending the sound wave to the distribution network target equipment through a transmission channel, wherein the sound wave of the distribution network information is formed by encoding and modulating SSID (service set identifier) and password contents contained in the distribution network information. Through the implementation, the distribution network target equipment can identify the transmission channel through the lead code, so that the distribution network information can be recovered more accurately.
In one embodiment, the transmitting the sound waves to the distribution network target device through the transmission channel includes:
and reducing the amplitude of the sound wave under the condition that the background sound intensity in the transmission channel is less than a preset threshold value.
In this embodiment, when the background sound intensity in the transmission channel is smaller than a preset threshold, the amplitude of the transmitted sound wave is reduced, and the threshold can be obtained according to previous experience summary, and the reduction of the amplitude of the sound wave can reduce stimulation to human ears on one hand, and can reduce the working power when the auxiliary equipment of the distribution network transmits the sound wave on the other hand, thereby saving resources.
In one embodiment, after acquiring a channel with the least background sound frequency distribution according to the background sound frequency information and setting the channel as a transmission channel, the method further includes:
recording the transmission channel as a first channel, judging whether the background sound in the first channel exceeds an interference threshold value when the distribution network target equipment is assisted to carry out distribution again, and if not, selecting the first channel as the transmission channel.
In this embodiment, the distribution network auxiliary device records that the transmission channel is the first channel, when the distribution network target device needs to be redistributed due to disconnection caused by power failure, crash and the like, the distribution network auxiliary device firstly judges whether the background sound interferes with the first channel, and if the background sound in the first channel is found not to reach an interference threshold, the channel is used as the transmission channel, so that the speed of selecting the transmission channel is increased, and the distribution network efficiency is further improved.
In one embodiment, as shown in fig. 2, a background sound adaptive acoustic wave distribution network method is provided, which includes the following steps:
step S202, receiving sound waves, and identifying a transmission channel through the sound waves, wherein the transmission channel is a channel which is used for acquiring background sound signals of the environment where the distribution network auxiliary equipment and the distribution network target equipment are located by the distribution network auxiliary equipment, acquiring background sound frequency information according to the background sound signals, and acquiring the background sound frequency distribution with the minimum background sound frequency according to the background sound frequency information;
in this step, the distribution network target device receives the sound wave, and identifies the transmission channel through the sound wave, where the transmission channel is a background sound signal acquired by the distribution network auxiliary device and the environment where the distribution network auxiliary device and the distribution network target device are located, obtains a background sound frequency distribution situation according to the background sound signal, sequentially identifies the distribution situations of the background sound frequency information in different channels, finds a channel with the least background sound frequency distribution as the transmission channel, and in addition, the distribution network auxiliary device also sends the sound wave obtained by encoding and modulating the information of the transmission channel to the distribution network target device, and the distribution network target device can identify the transmission channel according to the part of the sound wave.
And S204, acquiring distribution network information from the sound wave according to the transmission channel, and completing distribution network according to the distribution network information.
In this step, the distribution network target device receives the sound wave according to the transmission channel, demodulates and decodes the sound wave, and recovers the distribution network information carried in the sound wave, such as SSID and password information, and then the distribution network target device can access the wireless access point according to the distribution network information to complete distribution network.
In this embodiment, the distribution network target device identifies the transmission channel according to the received sound wave, and then performs corresponding demodulation and decoding on the received sound wave according to the transmission channel to restore distribution network information such as an SSID (service set identifier) and a password, and the distribution network target device completes distribution of the network according to the distribution network information, so that background sound interference received when the distribution network target device receives the distribution network information is reduced, the accuracy of the distribution network information obtained after demodulation and decoding is improved, and the success rate of distribution network is further improved.
In one embodiment, the method for acquiring the distribution network information from the sound wave according to the transmission channel, and after completing the distribution network according to the distribution network information, further includes:
recording that the transmission channel is a second channel, judging whether the second channel is the transmission channel or not through the received sound wave when receiving the distribution network information of the distribution network auxiliary equipment again, and receiving the sound wave through the transmission channel if the second channel is the transmission channel.
In this embodiment, the distribution network target device records that the transmission channel is the second channel, when the distribution network target device needs to be newly distributed due to disconnection caused by power failure, crash and the like, the distribution network target device firstly judges whether the second channel is the transmission channel according to the received sound wave, and if the second channel is found to be the transmission channel indicated in the received sound wave, the received sound wave is demodulated and decoded by using the channel information, so that the speed of identifying the transmission channel is increased, and the distribution network efficiency is further improved.
In one embodiment, identifying a transmission channel by acoustic waves includes:
the method comprises the steps of identifying a lead code in a received sound wave, traversing all channels, and judging that a channel corresponding to the lead code is a transmission channel, wherein the lead code comprises an identification of the transmission channel.
In this embodiment, the sound wave received by the distribution network target device includes a preamble, where the preamble is identification information with a fixed length, and is used to identify a channel used for transmission. And the lead code is coded and modulated by a coding mode predicted by the distribution network auxiliary equipment and the distribution network target equipment, and the obtained sound wave is added in front of the sound wave of the distribution network information and is sent to the distribution network target equipment. After the distribution network target device demodulates and decodes the section of sound wave, all channels are traversed and circulated, and then the channel corresponding to the lead code can be judged to be a transmission channel.
In one embodiment, a background sound adaptive acoustic wave distribution network system is provided, as shown in fig. 3, including:
the background sound processing module 302 is configured to acquire background sound signals of environments where the distribution network auxiliary device and the distribution network target device are located, where the distribution network auxiliary device is used to assist the distribution network target device in carrying out distribution;
a channel selection module 304, configured to obtain background sound frequency information according to the background sound signal, obtain a channel with the least background sound frequency distribution according to the background sound frequency information, and set the channel as a transmission channel;
the sound wave sending module 306 is configured to acquire distribution network information for the distribution network target device, convert the distribution network information into sound waves, and send the sound waves to the distribution network target device through a transmission channel, where the sound waves are used for the distribution network of the distribution network target device.
In one embodiment, the channel selecting module 304 is further configured to perform channel division on a sound wave frequency band used for data transmission to obtain a plurality of candidate channels, compare distribution conditions of background sound frequencies in a frequency range of the plurality of candidate channels, and use the candidate channel with the smallest background sound frequency distribution as a transmission channel.
In one embodiment, the channel selecting module 304 is further configured to select, as the transmission channel, a channel in a frequency band with the least stimulation to the human ear when the channel with the least background sound frequency distribution is greater than one.
In one embodiment, the sound wave sending module 306 is further configured to perform code modulation on a transmission channel by using a preamble and distribution network information to obtain a sound wave, where the preamble includes an identifier of the transmission channel, and the distribution network information includes a service set identifier and a password.
In one embodiment, the sound wave sending module 306 is further configured to reduce the amplitude of the sound wave if the background sound intensity in the transmission channel is smaller than a preset threshold.
In one embodiment, the channel selecting module 304 is further configured to record that the transmission channel is the first channel, determine whether a background sound in the first channel exceeds an interference threshold when the distribution network target device is assisted to perform distribution again, and select the first channel as the transmission channel if the background sound in the first channel does not exceed the interference threshold.
The background sound self-adaptive sound wave distribution network system reduces the interference of background sound to sound waves bearing distribution network information, improves the accuracy of the distribution network information acquired by the distribution network target equipment, and further improves the success rate of distribution networks.
In one embodiment, a background sound adaptive acoustic wave distribution network system is provided, as shown in fig. 4, including:
an acoustic wave acquisition module 402 for receiving acoustic waves;
the channel identification module 404 is configured to identify a transmission channel through sound waves, where the transmission channel is a channel in which the distribution network auxiliary device acquires background sound signals of environments in which the distribution network auxiliary device and the distribution network target device are located, acquires background sound frequency information according to the background sound signals, and acquires the background sound frequency distribution minimum according to the background sound frequency information;
and the distribution network module 406 is configured to acquire distribution network information from the sound wave according to the transmission channel and complete distribution network according to the distribution network information.
In one embodiment, the channel identification module 404 is further configured to record that the transmission channel is a second channel, and when the distribution network information of the distribution network auxiliary device is received again, determine whether the second channel is the transmission channel according to the received sound wave, and if so, receive the sound wave through the transmission channel.
In one embodiment, the channel identification module 404 is further configured to identify a preamble in the received sound wave, traverse all channels, and determine that a channel corresponding to the preamble is a transmission channel, where the preamble includes an identifier of the transmission channel.
The background sound self-adaptive sound wave distribution network system reduces the interference of background sound to sound waves bearing distribution network information, improves the accuracy of the distribution network information acquired by the distribution network target equipment, and further improves the success rate of distribution networks.
In one embodiment, a background sound adaptive sound wave distribution network device is provided, which includes a first intelligent device, wherein the first intelligent device acquires background sound signals of an environment where a distribution network auxiliary device and a distribution network target device are located; acquiring background sound frequency information according to the background sound signal, acquiring a channel with the least background sound frequency distribution according to the background sound frequency information, and setting the channel as a transmission channel; the method comprises the steps of obtaining distribution network information aiming at distribution network target equipment, converting the distribution network information into sound waves, and sending the sound waves to the distribution network target equipment through a transmission channel, wherein the distribution network auxiliary equipment is used for assisting the distribution network target equipment to carry out distribution network, and the sound waves are used for the distribution network target equipment to carry out distribution network.
In one embodiment, a background sound adaptive sound wave distribution network device is provided, and includes a second intelligent device, where the second intelligent device receives a sound wave and identifies a transmission channel through the sound wave, where the transmission channel is a channel where a distribution network auxiliary device collects background sound signals of an environment where the distribution network auxiliary device and a distribution network target device are located, obtains background sound frequency information according to the background sound signals, and obtains a background sound frequency distribution minimum according to the background sound frequency information; and acquiring distribution network information from the sound wave according to the transmission channel, and completing distribution network according to the distribution network information.
In one embodiment, a computer readable storage medium is provided having a computer program stored thereon, which when executed by a processor, performs the method for the background sound adaptive acoustic wave distribution network of claim.
The background sound adaptive sound wave distribution network system, the device and the storage medium can realize the background sound adaptive sound wave distribution network method, reduce the interference of background sound to sound waves bearing distribution network information, improve the accuracy of distribution network information acquired by distribution network target devices, and further improve the success rate of distribution networks.
In a specific embodiment, the logic unit of the distribution network auxiliary device is shown in fig. 5, and the device performs the following steps:
the first sound wave acquisition unit 502 acquires background sound of the environment where the distribution network equipment is located;
the background sound judgment unit 504 converts the background sound into frequency information and identifies a channel with the least background sound frequency information;
the first control unit 506 is a control unit of the distribution network auxiliary device, and is configured to obtain an SSID and a password of a wireless router input by a user from a human-computer interaction interface (e.g., a touch input screen of a mobile phone), and send the SSID and the password and a channel selected by the background sound determination unit 504 to the encoding and adjustment unit 508;
the coding and modulation unit 508 uses the prior art, and uses the channel information sent by the first control unit 506 to code and modulate, and converts the content of SSID and password into audio;
since which channel is adopted by the distribution network auxiliary device is uncertain, if the distribution network target device wants to recover the SSID and password, it must know the channel used by the distribution network auxiliary device after modulation, so that the channel marking unit 510 uses the same channel before the modulated audio, and adds a fixed piece of identification information called a preamble, and the preamble needs to be configured to the distribution network target device in advance;
the auxiliary intelligent equipment of the distribution network plays the finally formed audio file through the sound production unit 512 and conducts through sound waves.
The logic unit of the distribution network target device is shown in fig. 6, and the device executes the following steps:
the second sound wave acquisition unit 602 is a sound wave acquisition unit of the distribution network target equipment, and after the distribution network is started, the distribution network target equipment acquires sound wave information through the second sound wave acquisition unit;
the channel identification unit 604 cyclically traverses each channel, and determines that the channel used for modulation by the first intelligent device is a channel used for modulation if the received lead code and each channel are successfully matched with the preset lead code;
the demodulation and decoding unit 606 restores the contents of SSID and password using the existing technology matching 508;
the second control unit 608 sends the SSID and password to 610 and controls 610 to start connecting to the wireless access point;
the wifi unit 610 connects the wifi wireless access point according to the SSID and password sent by the second control unit 608.
By the embodiment, the interference of background sound to sound waves bearing distribution network information is reduced, the accuracy of the distribution network information acquired by the distribution network target equipment is improved, and the success rate of a distribution network is improved.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database, or other medium used in the embodiments provided herein may include non-volatile and/or volatile memory, among others. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (14)
1. A background sound adaptive sound wave network distribution method is characterized by comprising the following steps:
acquiring background sound signals of environments where distribution network auxiliary equipment and distribution network target equipment are located, wherein the distribution network auxiliary equipment is used for assisting the distribution network target equipment in carrying out distribution;
acquiring background sound frequency information according to the background sound signal, acquiring a channel with the least background sound frequency distribution according to the background sound frequency information, and setting the channel as a transmission channel;
the method comprises the steps of obtaining distribution network information aiming at distribution network target equipment, converting the distribution network information into sound waves, and sending the sound waves to the distribution network target equipment through a transmission channel, wherein the sound waves are used for distribution network of the distribution network target equipment.
2. The background acoustic adaptive sound wave network distribution method according to claim 1, wherein obtaining a channel with least background acoustic frequency distribution according to the background acoustic frequency information, and setting the channel as a transmission channel comprises:
and carrying out channel division on the sound wave frequency band for data transmission to obtain a plurality of alternative channels, comparing the distribution situation of the background sound frequency in the frequency range of the alternative channels, and taking the alternative channel with the minimum background sound frequency distribution as a transmission channel.
3. The background acoustic adaptive sound wave network distribution method according to claim 1, wherein the obtaining a channel with least background acoustic frequency distribution according to the background acoustic frequency information, and setting the channel as a transmission channel comprises:
and when the channel with the least background sound frequency distribution is more than one channel, selecting the channel with the frequency band with the least stimulation to the human ear as the transmission channel.
4. The background acoustic adaptive acoustic wave network distribution method according to claim 1, wherein the converting the network distribution information into acoustic waves comprises:
and performing code modulation on a lead code and the distribution network information on the transmission channel to obtain the sound wave, wherein the lead code comprises an identifier of the transmission channel, and the distribution network information comprises a service set identifier and a password.
5. The background acoustic adaptive sound wave distribution network method according to claim 1, wherein the sending the sound wave to a distribution network target device through the transmission channel comprises:
and reducing the amplitude of the sound wave under the condition that the background sound intensity in the transmission channel is less than a preset threshold value.
6. The background acoustic adaptive sound wave network distribution method according to claim 1, wherein the obtaining a channel with a minimum background acoustic frequency distribution according to the background acoustic frequency information, and after setting the channel as a transmission channel, further comprises:
recording the transmission channel as a first channel, judging whether the background sound in the first channel exceeds a preset interference threshold value when the distribution network target equipment is assisted to carry out distribution again, and if not, selecting the first channel as the transmission channel.
7. A background sound adaptive sound wave network distribution method is characterized by comprising the following steps:
receiving sound waves, and identifying a transmission channel through the sound waves, wherein the transmission channel is a channel which is obtained by acquiring background sound signals of the environment where a distribution network auxiliary device and a distribution network target device are located by the distribution network auxiliary device, obtaining background sound frequency information according to the background sound signals, and obtaining the minimum background sound frequency distribution according to the background sound frequency information;
and acquiring distribution network information from the sound wave according to the transmission channel, and completing distribution network according to the distribution network information.
8. The background acoustic adaptive acoustic wave distribution network method according to claim 7, wherein the receiving the acoustic wave, after identifying the transmission channel by the acoustic wave, further comprises:
recording that the transmission channel is a second channel, judging whether the second channel is the transmission channel or not through the received sound wave when receiving the distribution network information of the distribution network auxiliary equipment again, and if so, receiving the sound wave through the transmission channel.
9. The background acoustic adaptive acoustic wave distribution network method according to claim 7, wherein the identifying a transmission channel by the acoustic wave comprises:
and identifying a lead code in the received sound wave, traversing all channels, and judging that the channel corresponding to the lead code is a transmission channel, wherein the lead code comprises an identifier of the transmission channel.
10. A background sound adaptive sound wave distribution network system is characterized by comprising:
the background sound processing module is used for acquiring background sound signals of environments where the distribution network auxiliary equipment and the distribution network target equipment are located, wherein the distribution network auxiliary equipment is used for assisting the distribution network target equipment in carrying out distribution;
a channel selection module, configured to obtain background sound frequency information according to the background sound signal, obtain a channel with the least background sound frequency distribution according to the background sound frequency information, and set the channel as a transmission channel;
the sound wave sending module is used for acquiring distribution network information aiming at the distribution network target equipment, converting the distribution network information into sound waves and sending the sound waves to the distribution network target equipment through the transmission channel, wherein the sound waves are used for the distribution network target equipment to carry out distribution.
11. A background sound adaptive sound wave distribution network system is characterized by comprising:
the sound wave acquisition module is used for receiving sound waves;
the channel identification module is used for identifying a transmission channel through the sound wave, wherein the transmission channel is a channel which is obtained by acquiring background sound signals of the environment where the distribution network auxiliary equipment and the distribution network target equipment are located by the distribution network auxiliary equipment, obtaining background sound frequency information according to the background sound signals, and obtaining the background sound frequency distribution with the minimum background sound frequency according to the background sound frequency information;
and the distribution network module is used for acquiring distribution network information from the sound wave according to the transmission channel and completing distribution network according to the distribution network information.
12. A background sound adaptive sound wave distribution network device is characterized by comprising a first intelligent device, wherein the first intelligent device acquires background sound signals of environments where a distribution network auxiliary device and a distribution network target device are located; acquiring background sound frequency information according to the background sound signal, acquiring a channel with the least background sound frequency distribution according to the background sound frequency information, and setting the channel as a transmission channel; the method comprises the steps of obtaining distribution network information aiming at distribution network target equipment, converting the distribution network information into sound waves, and sending the sound waves to the distribution network target equipment through a transmission channel, wherein the distribution network auxiliary equipment is used for assisting the distribution network target equipment to carry out distribution network, and the sound waves are used for the distribution network target equipment to carry out distribution network.
13. A background sound self-adaptive sound wave distribution network device is characterized by comprising a second intelligent device, wherein the second intelligent device receives sound waves and identifies a transmission channel through the sound waves, wherein the transmission channel is a channel which is used for acquiring background sound signals of environments where distribution network auxiliary devices and distribution network target devices are located by distribution network auxiliary devices, obtains background sound frequency information according to the background sound signals, and obtains the background sound frequency with the minimum distribution according to the background sound frequency information; and acquiring distribution network information from the sound wave according to the transmission channel, and completing distribution network according to the distribution network information.
14. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 9.
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103957220A (en) * | 2014-05-19 | 2014-07-30 | 刘飞 | Data transmission method and system based on frequency conversion sound waves |
| CN104717601A (en) * | 2014-08-22 | 2015-06-17 | 深圳市智美达科技有限公司 | Wireless network login method and system of wireless monitoring device |
| CN105337670A (en) * | 2014-08-13 | 2016-02-17 | 国民技术股份有限公司 | Wireless sound wave communication method and device thereof |
| CN106102047A (en) * | 2016-05-24 | 2016-11-09 | 深圳聚点互动科技有限公司 | A kind of self adaptation sound wave wireless network configuration method |
| CN107124230A (en) * | 2017-04-25 | 2017-09-01 | 腾讯科技（深圳）有限公司 | Sound wave communication method, terminal and server |
| CN107483113A (en) * | 2017-08-23 | 2017-12-15 | 谢锋 | A kind of gateway distribution method and system based on hand-held intelligent equipment |
| CN108718460A (en) * | 2018-06-19 | 2018-10-30 | 广东美的制冷设备有限公司 | Communication means, communication device and the intelligent electronic device of WLAN |
| CN109195143A (en) * | 2018-08-29 | 2019-01-11 | 南昌努比亚技术有限公司 | Method for network access, mobile terminal and readable storage medium storing program for executing |
| CN109451502A (en) * | 2018-12-27 | 2019-03-08 | 广东美的厨房电器制造有限公司 | Household appliance matches network method, network distribution device and computer readable storage medium |
| CN109714782A (en) * | 2017-10-26 | 2019-05-03 | 阿里巴巴集团控股有限公司 | Method, apparatus and electronic equipment for smart machine distribution |
-
2019
- 2019-09-20 CN CN201910891346.8A patent/CN110784294B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103957220A (en) * | 2014-05-19 | 2014-07-30 | 刘飞 | Data transmission method and system based on frequency conversion sound waves |
| CN105337670A (en) * | 2014-08-13 | 2016-02-17 | 国民技术股份有限公司 | Wireless sound wave communication method and device thereof |
| CN104717601A (en) * | 2014-08-22 | 2015-06-17 | 深圳市智美达科技有限公司 | Wireless network login method and system of wireless monitoring device |
| CN106102047A (en) * | 2016-05-24 | 2016-11-09 | 深圳聚点互动科技有限公司 | A kind of self adaptation sound wave wireless network configuration method |
| CN107124230A (en) * | 2017-04-25 | 2017-09-01 | 腾讯科技（深圳）有限公司 | Sound wave communication method, terminal and server |
| CN107483113A (en) * | 2017-08-23 | 2017-12-15 | 谢锋 | A kind of gateway distribution method and system based on hand-held intelligent equipment |
| CN109714782A (en) * | 2017-10-26 | 2019-05-03 | 阿里巴巴集团控股有限公司 | Method, apparatus and electronic equipment for smart machine distribution |
| CN108718460A (en) * | 2018-06-19 | 2018-10-30 | 广东美的制冷设备有限公司 | Communication means, communication device and the intelligent electronic device of WLAN |
| CN109195143A (en) * | 2018-08-29 | 2019-01-11 | 南昌努比亚技术有限公司 | Method for network access, mobile terminal and readable storage medium storing program for executing |
| CN109451502A (en) * | 2018-12-27 | 2019-03-08 | 广东美的厨房电器制造有限公司 | Household appliance matches network method, network distribution device and computer readable storage medium |
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|---|---|
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