CN114244383A - Signal processing method, system, Bluetooth headset and storage medium - Google Patents
Signal processing method, system, Bluetooth headset and storage medium Download PDFInfo
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- CN114244383A CN114244383A CN202111616225.6A CN202111616225A CN114244383A CN 114244383 A CN114244383 A CN 114244383A CN 202111616225 A CN202111616225 A CN 202111616225A CN 114244383 A CN114244383 A CN 114244383A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
- H04B1/1027—Means associated with receiver for limiting or suppressing noise or interference assessing signal quality or detecting noise/interference for the received signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention provides a signal processing method, a signal processing device, a Bluetooth headset and a storage medium, wherein the method comprises the following steps: acquiring the intensity of an interference signal in the use environment of the target Bluetooth headset; acquiring the strength of an effective signal sent by a terminal device connected with a target Bluetooth headset; and judging whether the current code rate corresponding to the effective signal is adjusted or not according to the intensity of the interference signal and the intensity of the effective signal, and if so, transmitting the effective signal by using the adjusted current code rate. The current code rate of the transmitted signal is adjusted by detecting the intensity of an interference signal in the surrounding environment of the target Bluetooth headset and the intensity of an effective signal transmitted by the terminal equipment, and when the target Bluetooth headset encounters signal interference, the intensity of the interference signal is inevitably changed, so that a current code rate adjusting mechanism is triggered to transmit the effective signal by adopting a proper code rate, the packet loss rate in the transmission process is reduced, the appearance of audio frequency jamming and delay is slowed down, and the friendliness is improved.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a signal processing method and apparatus, a bluetooth headset, and a storage medium.
Background
When the existing Bluetooth headset is used, signals are transmitted by establishing Bluetooth connection between a main headset and terminal equipment, and signals are also transmitted by establishing Bluetooth connection between the main headset and a slave headset. With the popularization of the current electronic products, various radio frequency signals exist around the electronic products, for example, radio frequency signals of WIFI, bluetooth, induction cooker and the like exist in a 2.4G frequency band, and if the signals are too strong and occupy all channels, interference is inevitably caused to the wireless devices in use, for example, when a bluetooth headset is used for listening to music, the interference signals are too large, serious packet loss is caused, and music jamming and delayed appearance occur.
Disclosure of Invention
The invention provides a signal processing method, a signal processing device, a Bluetooth headset and a storage medium, and mainly aims to effectively improve the signal transmission accuracy and reduce the packet loss phenomenon when the Bluetooth headset encounters signal interference.
In a first aspect, an embodiment of the present invention provides a signal processing method, including:
acquiring the intensity of an interference signal in the use environment of the target Bluetooth headset;
acquiring the strength of an effective signal sent by terminal equipment connected with the target Bluetooth headset;
and judging whether the current code rate corresponding to the effective signal is adjusted or not according to the intensity of the interference signal and the intensity of the effective signal, and if so, sending the effective signal by using the adjusted current code rate.
Preferably, the determining whether to adjust the current code rate corresponding to the effective signal according to the strength of the interference signal and the strength of the effective signal includes:
and judging whether to adjust the current code rate according to the intensity of the interference signal, the intensity of the effective signal and the interval to which the difference value between the intensity of the interference signal and the intensity of the effective signal belongs.
Preferably, the determining whether to adjust the current code rate according to the section to which the strength of the interference signal, the strength of the effective signal, and the difference between the strength of the interference signal and the strength of the effective signal belong includes:
if the strength of the interference signal is smaller than or equal to the lowest preset interference threshold, adjusting the current code rate corresponding to the effective signal according to the interval to which the strength of the effective signal belongs;
if the strength of the interference signal is greater than the highest preset interference threshold value, adjusting the current code rate corresponding to the effective signal to a preset minimum code rate;
if the intensity of the interference signal is greater than the lowest preset interference threshold and less than or equal to the highest preset interference threshold, adjusting the current code rate corresponding to the effective signal according to the interval to which the difference between the intensity of the interference signal and the intensity of the effective signal belongs.
Preferably, if the strength of the interference signal is less than or equal to a minimum preset interference threshold, adjusting the current code rate corresponding to the effective signal according to the section to which the strength of the effective signal belongs, including:
if the strength of the effective signal is greater than a first preset effective threshold value, setting the current code rate as a default code rate;
if the strength of the effective signal is smaller than or equal to a second preset effective threshold and larger than a third preset effective threshold, reducing the current code rate to a first code rate;
and if the strength of the effective signal is less than or equal to the third preset effective threshold and greater than a fourth preset effective threshold, reducing the current code rate to a second code rate.
Preferably, the adjusting the current code rate corresponding to the effective signal according to the section to which the difference between the strength of the interference signal and the strength of the effective signal belongs includes:
if the strength of the interference signal is greater than the lowest preset interference threshold value and less than or equal to a first preset interference threshold value, and the difference value is greater than a first preset difference value threshold value, reducing the current code rate to a third code rate;
if the strength of the interference signal is greater than the lowest preset interference threshold and less than or equal to the first preset interference threshold, and the difference is greater than a second preset difference threshold and less than or equal to the first preset difference threshold, reducing the current code rate to a fourth code rate;
if the strength of the interference signal is greater than the lowest preset interference threshold value, is less than or equal to the first preset interference threshold value, and the difference value is less than or equal to the second preset difference value threshold value, setting the current code rate as the default code rate;
if the strength of the interference signal is greater than the first preset interference threshold value and less than or equal to a second preset interference threshold value, and the difference value is greater than the first preset difference value threshold value, reducing the current code rate to a fifth code rate;
if the strength of the interference signal is greater than the first preset interference threshold and less than or equal to a second preset interference threshold, and the difference is greater than the second preset difference threshold and less than or equal to the first preset difference threshold, reducing the current code rate to a sixth code rate;
if the strength of the interference signal is greater than the first preset interference threshold value, and less than or equal to a second preset interference threshold value, and the difference value is less than or equal to the second preset difference value threshold value, setting the current code rate as the default code rate;
if the strength of the interference signal is greater than the second preset interference threshold and less than or equal to the third preset interference threshold, and the difference is greater than the first preset difference threshold, reducing the current code rate to a seventh code rate;
if the strength of the interference signal is greater than the second preset interference threshold and less than or equal to the third preset interference threshold, and the difference is greater than the second preset difference threshold and less than or equal to the first preset difference threshold, reducing the current code rate to an eighth code rate;
if the strength of the interference signal is greater than the second preset interference threshold, less than or equal to the third preset interference threshold, and the difference is less than or equal to the second preset difference threshold, setting the current code rate as the default code rate;
if the strength of the interference signal is greater than the third preset interference threshold and less than or equal to the preset highest threshold, and the difference is greater than the first preset difference threshold, reducing the current code rate to a ninth code rate;
if the strength of the interference signal is greater than the third preset interference threshold and less than or equal to the preset highest threshold, and the difference is greater than the second preset difference threshold and less than or equal to the first preset difference threshold, reducing the current code rate to a tenth code rate;
and if the strength of the interference signal is greater than the third preset interference threshold value and less than or equal to the preset highest threshold value, and the difference value is less than or equal to the second preset difference value threshold value, setting the current code rate as the default code rate.
Preferably, the method further comprises the following steps:
and if the ratio of the strength of the effective signal to the strength of the interference signal is greater than a preset ratio threshold, resetting the adjusted current code rate to the default code rate.
Preferably, the method further comprises the following steps:
if not, keeping the current code rate, and sending the effective signal by using the current code rate.
In a second aspect, an embodiment of the present invention provides a signal processing system, including:
the interference module is used for acquiring the intensity of an interference signal in the use environment of the target Bluetooth headset;
the effective module is used for acquiring the strength of an effective signal sent by the terminal equipment connected with the target Bluetooth headset;
and the adjusting module is used for judging whether to adjust the current code rate corresponding to the effective signal or not according to the strength of the interference signal and the strength of the effective signal, and if so, sending the effective signal by using the adjusted current code rate.
In a third aspect, an embodiment of the present invention provides a bluetooth headset, including a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor implements the steps of the signal processing method when executing the computer program.
In a fourth aspect, an embodiment of the present invention provides a computer storage medium, which stores a computer program, and the computer program, when executed by a processor, implements the steps of the signal processing method.
According to the signal processing method, the system, the Bluetooth headset and the storage medium provided by the invention, the current code rate of the transmitted signal is adjusted by detecting the intensity of the interference signal in the surrounding environment of the target Bluetooth headset and the intensity of the effective signal transmitted by the terminal equipment, and when the target Bluetooth headset encounters signal interference, the intensity of the interference signal is inevitably changed, so that a current code rate adjusting mechanism is triggered to adopt a proper code rate to transmit the effective signal, the packet loss rate in the transmitting process is reduced, the appearance of audio frequency jamming and delay is slowed down, and the friendliness is improved.
Drawings
Fig. 1 is a flowchart of a signal processing method according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a signal processing system according to an embodiment of the present invention.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Fig. 1 is a flowchart of a signal processing method according to an embodiment of the present invention, as shown in fig. 1, the method includes:
s110, obtaining the intensity of an interference signal in the use environment of the target Bluetooth headset;
in the use process of the target Bluetooth headset, the headset is connected with the terminal equipment through Bluetooth, the terminal equipment sends signals (general and audio) to the target Bluetooth headset through Bluetooth signals, and a user can listen to activities such as the audio according to the target Bluetooth headset. In the process that the terminal equipment normally sends signals to the target Bluetooth headset, the default code rate of the sent signals is 198 kbit/s.
Because clutter interference is not avoided, the intensity of an interference signal in the surrounding environment is detected through a target Bluetooth headset, or the intensity of the interference signal in the surrounding environment is detected through signal intensity detection software and then is sent to the target Bluetooth headset, the common signal intensity detection software is WirelessMon, software carried by some mobile phones can also detect the interference signal, the specific detection method can be adjusted according to actual conditions, and the embodiment of the invention is not specifically limited.
S120, acquiring the strength of an effective signal sent by the terminal equipment connected with the target Bluetooth headset;
for the terminal equipment connected with the target Bluetooth headset, the signal sent by the terminal equipment to the target Bluetooth headset is called as an effective signal, the Bluetooth headset is provided with a function of detecting the strength of the effective signal, and the strength of the effective signal is detected through the function carried by the Bluetooth headset.
S130, judging whether the current code rate corresponding to the effective signal is adjusted or not according to the intensity of the interference signal and the intensity of the effective signal, and if so, sending the effective signal by using the adjusted current code rate.
Judging whether the current code rate of sending the effective signal needs to be adjusted or not according to the strength of the interference signal and the strength of the effective signal, wherein the difference is the strength of the interference signal, if the strength of the interference signal is very small, the interference signal in the environment can be ignored, and the effective signal is transmitted according to the normal default code rate, and the interference signal is transmitted according to the normal default code rate; if the strength of the interference signal is very high, the interference signal will affect the transmission of the effective signal, and therefore the transmission rate of the effective signal needs to be adjusted, generally, the higher the strength of the interference signal is, the lower the current code rate of the transmission signal is, because the lower the code rate is, the slower the speed of the transmission signal is, the fewer packets are transmitted in unit time, and thus the number of lost packets is also reduced; in another case, the strength of the interference signal and the strength of the effective signal are both very small, or the strength of the interference signal and the strength of the effective signal are both very high, so that the difference between the strength of the interference signal and the strength of the effective signal is compared, or the strength of the interference signal and the strength of the effective signal are compared, and the difference between the strength of the interference signal and the strength of the effective signal or the ratio of the strength of the interference signal and the strength of the effective signal can be referred to determine whether the interference signal interferes with the transmission of the effective signal and how much the interference signal affects the transmission of the effective signal, the current code rate is adjusted according to the actual situation, and the adjusted current code rate is used to transmit the effective signal.
According to the signal processing method provided by the invention, the current code rate of the transmitted signal is adjusted by detecting the intensity of the interference signal in the surrounding environment of the target Bluetooth headset and the intensity of the effective signal transmitted by the terminal equipment, and when the target Bluetooth headset encounters signal interference, the intensity of the interference signal is inevitably changed, so that a current code rate adjusting mechanism is triggered to transmit the effective signal by adopting a proper code rate, the packet loss rate in the transmitting process is reduced, the appearance of audio frequency blockage and delay is slowed down, and the friendliness is improved.
On the basis of the foregoing embodiment, preferably, the determining, according to the strength of the interference signal and the strength of the effective signal, whether to adjust the current code rate corresponding to the effective signal includes:
and judging whether to adjust the current code rate according to the intensity of the interference signal, the intensity of the effective signal and the interval to which the difference value between the intensity of the interference signal and the intensity of the effective signal belongs.
The method comprises the steps of adjusting the code rate, judging whether to adjust the current code rate or not according to the strength of an interference signal, the strength of an effective signal, the strength of the interference signal and the strength of the effective signal, and determining how to adjust the current code rate.
On the basis of the foregoing embodiment, preferably, the determining whether to adjust the current code rate according to an interval to which the strength of the interference signal, the strength of the effective signal, and a difference between the strength of the interference signal and the strength of the effective signal belong includes:
if the strength of the interference signal is smaller than or equal to the lowest preset interference threshold, adjusting the current code rate corresponding to the effective signal according to the interval to which the strength of the effective signal belongs;
if the strength of the interference signal is greater than the highest preset interference threshold value, adjusting the current code rate corresponding to the effective signal to a preset minimum code rate;
if the intensity of the interference signal is greater than the lowest preset interference threshold and less than or equal to the highest preset interference threshold, adjusting the current code rate corresponding to the effective signal according to the interval to which the difference between the intensity of the interference signal and the intensity of the effective signal belongs.
Specifically, the current bitrate adjustment rule summarized by multiple experiments is as follows:
if the strength of the interference signal is less than or equal to the lowest preset interference threshold, the current code rate is adjusted according to the position interval where the strength of the effective signal is located, the lowest preset interference threshold is determined in advance according to the actual situation, and the embodiment of the present invention is not specifically limited herein, and in the embodiment of the present invention, the lowest preset interference threshold is-90 dbm.
If the strength of the interference signal is greater than the highest preset interference threshold, the current code rate is directly adjusted to be the preset minimum code rate, the highest preset interference threshold represents a limit value with larger strength of the interference signal, if the strength of the interference signal is larger, the current code rate needs to be adjusted to be small, and the highest preset interference threshold is determined in advance according to actual conditions. The preset minimum code rate is determined in advance according to actual conditions, and the embodiment of the invention is not specifically limited herein, and in the embodiment of the invention, the preset minimum code rate is 128 kbit/s.
If the strength of the interference signal is less than or equal to the highest preset interference threshold and greater than the lowest preset interference threshold, that is, the interference signal is located between the lowest preset interference threshold and the highest preset interference threshold, it cannot be directly determined how to adjust the current code rate according to the strength of the effective signal, but it is determined how to adjust the current code rate according to the difference between the strength of the interference signal and the strength of the effective signal.
On the basis of the foregoing embodiment, preferably, if the strength of the interference signal is less than or equal to a minimum preset interference threshold, adjusting the current code rate corresponding to the effective signal according to an interval to which the strength of the effective signal belongs includes:
if the strength of the effective signal is greater than a first preset effective threshold value, setting the current code rate as a default code rate;
if the strength of the effective signal is smaller than or equal to a second preset effective threshold and larger than a third preset effective threshold, reducing the current code rate to a first code rate;
and if the strength of the effective signal is less than or equal to the third preset effective threshold and greater than a fourth preset effective threshold, reducing the current code rate to a second code rate.
In the embodiment of the present invention, when the strength of the interfering signal is less than or equal to the lowest preset interference threshold, the strength of the interfering signal is represented by a, that is, a is less than or equal to-90 dbm, and the location interval where the strength of the effective signal is located is determined. If the strength of the effective signal is greater than a first preset effective threshold, setting the current code rate as a default code rate, where the first preset effective threshold is determined in advance according to an actual situation, and the embodiment of the present invention is not specifically limited herein. If the strength of the effective signal is less than or equal to a second preset effective threshold and greater than a third preset effective threshold, setting the current code rate as a first code rate, wherein the second preset effective threshold, the third preset effective threshold and the first code rate are determined in advance according to actual conditions, and the embodiment of the invention is not limited in detail herein. If the strength of the effective signal is less than or equal to a third preset effective threshold and greater than a fourth preset effective threshold, setting the current code rate as a second code rate, where the fourth preset effective threshold and the second code rate are determined in advance according to actual conditions, and the embodiment of the present invention is not specifically limited herein.
On the basis of the foregoing embodiment, preferably, the adjusting the current code rate corresponding to the effective signal according to the section to which the difference between the strength of the interference signal and the strength of the effective signal belongs includes:
if the strength of the interference signal is greater than the lowest preset interference threshold value and less than or equal to a first preset interference threshold value, and the difference value is greater than a first preset difference value threshold value, reducing the current code rate to a third code rate;
if the strength of the interference signal is greater than the lowest preset interference threshold and less than or equal to the first preset interference threshold, and the difference is greater than a second preset difference threshold and less than or equal to the first preset difference threshold, reducing the current code rate to a fourth code rate;
if the strength of the interference signal is greater than the lowest preset interference threshold value, is less than or equal to the first preset interference threshold value, and the difference value is less than or equal to the second preset difference value threshold value, setting the current code rate as the default code rate;
if the strength of the interference signal is greater than the first preset interference threshold value and less than or equal to a second preset interference threshold value, and the difference value is greater than the first preset difference value threshold value, reducing the current code rate to a fifth code rate;
if the strength of the interference signal is greater than the first preset interference threshold and less than or equal to a second preset interference threshold, and the difference is greater than the second preset difference threshold and less than or equal to the first preset difference threshold, reducing the current code rate to a sixth code rate;
if the strength of the interference signal is greater than the first preset interference threshold value, and less than or equal to a second preset interference threshold value, and the difference value is less than or equal to the second preset difference value threshold value, setting the current code rate as the default code rate;
if the strength of the interference signal is greater than the second preset interference threshold and less than or equal to the third preset interference threshold, and the difference is greater than the first preset difference threshold, reducing the current code rate to a seventh code rate;
if the strength of the interference signal is greater than the second preset interference threshold and less than or equal to the third preset interference threshold, and the difference is greater than the second preset difference threshold and less than or equal to the first preset difference threshold, reducing the current code rate to an eighth code rate;
if the strength of the interference signal is greater than the second preset interference threshold, less than or equal to the third preset interference threshold, and the difference is less than or equal to the second preset difference threshold, setting the current code rate as the default code rate;
if the strength of the interference signal is greater than the third preset interference threshold and less than or equal to the preset highest threshold, and the difference is greater than the first preset difference threshold, reducing the current code rate to a ninth code rate;
if the strength of the interference signal is greater than the third preset interference threshold and less than or equal to the preset highest threshold, and the difference is greater than the second preset difference threshold and less than or equal to the first preset difference threshold, reducing the current code rate to a tenth code rate;
and if the strength of the interference signal is greater than the third preset interference threshold value and less than or equal to the preset highest threshold value, and the difference value is less than or equal to the second preset difference value threshold value, setting the current code rate as the default code rate.
When the strength of the interference signal is greater than the lowest preset interference threshold and less than a first preset interference threshold, adjusting the current code rate according to a position interval in which a difference between the strength of the interference signal and the strength of the effective signal is located, where the first preset interference threshold is determined in advance according to an actual situation, and the embodiment of the present invention is not specifically limited herein. The difference between the strength of the interfering signal and the strength of the valid signal is referred to as the difference, denoted a-b. If the difference is greater than a first preset difference threshold, adjusting the current rate to a third code rate, where the first preset difference threshold and the third code rate are determined in advance according to actual conditions, and the embodiment of the present invention is not specifically limited herein, in the embodiment of the present invention, the first preset difference threshold is-10 dbm, the third code rate is 170kbit/s, and when a is greater than-90 dbm and less than or equal to-80 dbm, a-b is greater than-10 dbm, and the current rate is adjusted to 170 kbit/s. If the difference is greater than a second preset difference threshold and less than or equal to the first preset difference threshold, adjusting the current rate to a fourth code rate, where the second preset difference threshold and the fourth code rate are determined in advance according to actual conditions, and the embodiment of the present invention is not specifically limited herein. If the difference is less than a second preset difference threshold, adjusting the current rate to a default code rate, and when a is greater than-90 dbm and less than or equal to-80 dbm, a-b is less than-20 dbm, and setting the current rate to 198 kbit/s.
When the strength of the interference signal is greater than a first preset interference threshold and less than a second preset interference threshold, adjusting the current code rate according to a position interval in which a difference between the strength of the interference signal and the strength of the effective signal is located, where the second preset interference threshold is determined in advance according to an actual situation, and the embodiment of the present invention is not specifically limited herein. If the difference is greater than the first preset difference threshold, adjusting the current rate to a fifth code rate, where the fifth code rate is determined in advance according to an actual situation, and the embodiment of the present invention is not specifically limited herein, in the embodiment of the present invention, the fifth code rate is 175kbit/s, and when a is greater than-80 dbm and less than or equal to-70 dbm, a-b is greater than-10 dbm, and the current rate is adjusted to 175 kbit/s. If the difference is greater than the second preset difference threshold and less than or equal to the first preset difference threshold, adjusting the current rate to a sixth code rate, where the sixth code rate is determined in advance according to an actual situation, and the embodiment of the present invention is not specifically limited herein, and in the embodiment of the present invention, the sixth code rate is 185kbit/s, and when a is greater than-90 dbm and less than or equal to-80 dbm, a-b is greater than-20 dbm and less than or equal to-10 dbm, and the current rate is adjusted to 185 kbit/s. If the difference is less than a second preset difference threshold, adjusting the current rate to a default code rate, and when a is greater than-90 dbm and less than or equal to-80 dbm, a-b is less than-20 dbm, and setting the current rate to 198 kbit/s.
In the embodiment of the present invention, the third preset interference threshold is-60 dbm, that is, when a is greater than-70 dbm and less than or equal to-60 dbm, the current code rate is adjusted according to the position interval in which the difference between the strength of the interference signal and the strength of the effective signal is located. If the difference is greater than the first preset difference threshold, adjusting the current rate to a seventh code rate, where the seventh code rate is determined in advance according to an actual situation, and the embodiment of the present invention is not specifically limited herein, in the embodiment of the present invention, the seventh code rate is 170kbit/s, and when a is greater than-70 dbm and less than or equal to-60 dbm, a-b is greater than-10 dbm, and the current rate is adjusted to 170 kbit/s. If the difference is greater than the second preset difference threshold and less than or equal to the first preset difference threshold, adjusting the current rate to an eighth code rate, where the eighth code rate is determined in advance according to an actual situation, and the embodiment of the present invention is not specifically limited herein, and in the embodiment of the present invention, the eighth code rate is 180kbit/s, and when a is greater than-70 dbm and less than or equal to-60 dbm, a-b is greater than-20 dbm and less than or equal to-10 dbm, and the current rate is adjusted to 180 kbit/s. If the difference is less than a second preset difference threshold, adjusting the current rate to a default code rate, and when a is greater than-70 dbm and less than or equal to-60 dbm, a-b is less than-20 dbm, and setting the current rate to 198 kbit/s.
And under the condition that the intensity of the interference signal is greater than a third preset interference threshold and less than a lowest preset interference threshold, adjusting the current code rate according to a position interval where a difference value between the intensity of the interference signal and the intensity of the effective signal is located, namely when a is greater than-60 dbm and less than or equal to-50 dbm, adjusting the current code rate according to the position interval where the difference value between the intensity of the interference signal and the intensity of the effective signal is located. If the difference is greater than the first preset difference threshold, adjusting the current rate to a ninth code rate, where the ninth code rate is determined in advance according to an actual situation, and the embodiment of the present invention is not specifically limited herein, and in the embodiment of the present invention, the ninth code rate is 160kbit/s, and when a is greater than-60 dbm and less than or equal to-50 dbm, a-b is greater than-10 dbm, and the current rate is adjusted to 160 kbit/s. If the difference is greater than the second preset difference threshold and less than or equal to the first preset difference threshold, adjusting the current rate to a tenth code rate, where the tenth code rate is determined in advance according to an actual situation, and the embodiment of the present invention is not specifically limited herein, and in the embodiment of the present invention, the tenth code rate is 180kbit/s, and when a is greater than-60 dbm and less than or equal to-50 dbm, a-b is greater than-20 dbm and less than or equal to-10 dbm, and the current rate is adjusted to 180 kbit/s. If the difference is less than a second preset difference threshold, adjusting the current rate to a default code rate, and when a is greater than-60 dbm and less than or equal to-50 dbm, a-b is less than-20 dbm, and setting the current rate to 198 kbit/s. Table 1 is a schematic table of current code rate adjustment in the embodiment of the present invention, which is detailed in table 1.
TABLE 1
On the basis of the above embodiment, it is preferable to further include:
and if the ratio of the strength of the effective signal to the strength of the interference signal is greater than a preset ratio threshold, resetting the adjusted current code rate to the default code rate.
If the interference signal disappears or the strength of the effective signal received by the earphone is increased, the code rate is withdrawn from the above steps until the default value is withdrawn.
On the basis of the above embodiment, it is preferable to further include:
if not, keeping the current code rate, and sending the effective signal by using the current code rate.
Fig. 2 is a schematic structural diagram of a signal processing system according to an embodiment of the present invention, as shown in fig. 2, the system includes an interference module 210, an effective module 220, and an adjustment module 230, where:
the interference module 210 is configured to obtain the strength of an interference signal in a usage environment of the target bluetooth headset;
the valid module 220 is configured to obtain the strength of a valid signal sent by a terminal device connected to the target bluetooth headset;
the adjusting module 230 is configured to determine whether to adjust a current code rate corresponding to the effective signal according to the strength of the interference signal and the strength of the effective signal, and if so, send the effective signal by using the adjusted current code rate.
The present embodiment is a system embodiment corresponding to the above method embodiment, and please refer to the above method embodiment for details, which is not described herein again.
On the basis of the above embodiment, it is preferable that the adjusting module includes a first adjusting unit, wherein:
the first adjusting unit is configured to determine whether to adjust the current code rate according to the strength of the interference signal, the strength of the effective signal, and an interval to which a difference between the strength of the interference signal and the strength of the effective signal belongs.
On the basis of the above embodiment, preferably, the first adjusting unit includes a second adjusting unit, a third adjusting unit, and a fourth adjusting unit, wherein:
the second adjusting unit is configured to adjust the current code rate corresponding to the effective signal according to the section to which the strength of the effective signal belongs if the strength of the interference signal is less than or equal to a lowest preset interference threshold;
the third adjusting unit is configured to adjust the current code rate corresponding to the effective signal to a preset minimum code rate if the strength of the interference signal is greater than a highest preset interference threshold;
the fourth adjusting unit is configured to adjust the current code rate corresponding to the effective signal according to an interval to which a difference between the strength of the interference signal and the strength of the effective signal belongs, if the strength of the interference signal is greater than the lowest preset interference threshold and is less than or equal to the highest preset interference threshold.
On the basis of the above embodiment, preferably, the second adjusting unit includes a first subunit, a second subunit, and a third subunit, wherein:
the first subunit is configured to set the current code rate to a default code rate if the strength of the effective signal is greater than a first preset effective threshold;
the second subunit is configured to reduce the current code rate to a first code rate if the strength of the effective signal is less than or equal to a second preset effective threshold and greater than a third preset effective threshold;
the third subunit is configured to reduce the current code rate to a second code rate if the strength of the effective signal is less than or equal to the third preset effective threshold and greater than a fourth preset effective threshold.
On the basis of the above embodiment, preferably, the fourth adjusting unit includes a fourth subunit, a fifth subunit, a sixth subunit, a seventh subunit, an eighth subunit, a ninth subunit, a tenth subunit, an eleventh subunit, a twelfth subunit, a thirteenth subunit, a fourteenth subunit and a fifteenth subunit, wherein:
the fourth subunit is configured to reduce the current code rate to a third code rate if the strength of the interference signal is greater than the lowest preset interference threshold and less than or equal to a first preset interference threshold, and the difference is greater than a first preset difference threshold;
the fifth subunit is configured to reduce the current code rate to a fourth code rate if the strength of the interference signal is greater than the lowest preset interference threshold and is less than or equal to the first preset interference threshold, and the difference is greater than a second preset difference threshold and is less than or equal to the first preset difference threshold;
the sixth subunit is configured to set the current code rate to the default code rate if the strength of the interference signal is greater than the lowest preset interference threshold and is less than or equal to the first preset interference threshold, and the difference is less than or equal to the second preset difference threshold;
the seventh subunit is configured to reduce the current code rate to a fifth code rate if the strength of the interference signal is greater than the first preset interference threshold and less than or equal to a second preset interference threshold, and the difference is greater than the first preset difference threshold;
the eighth subunit is configured to, if the strength of the interference signal is greater than the first preset interference threshold and less than or equal to a second preset interference threshold, and the difference is greater than the second preset difference threshold and less than or equal to the first preset difference threshold, turn down the current code rate to a sixth code rate;
the ninth subunit is configured to set the current code rate to the default code rate if the strength of the interference signal is greater than the first preset interference threshold and less than or equal to a second preset interference threshold, and the difference is less than or equal to the second preset difference threshold;
the tenth subunit is configured to reduce the current code rate to a seventh code rate if the strength of the interference signal is greater than the second preset interference threshold and less than or equal to the third preset interference threshold, and the difference is greater than the first preset difference threshold;
the eleventh subunit is configured to reduce the current code rate to an eighth code rate if the strength of the interference signal is greater than the second preset interference threshold and is less than or equal to the third preset interference threshold, and the difference is greater than the second preset difference threshold and is less than or equal to the first preset difference threshold;
the twelfth subunit is configured to set the current code rate to the default code rate if the strength of the interference signal is greater than the second preset interference threshold and less than or equal to the third preset interference threshold, and the difference is less than or equal to the second preset difference threshold;
the thirteenth subunit is configured to reduce the current code rate to a ninth code rate if the strength of the interference signal is greater than the third preset interference threshold and less than or equal to the preset highest threshold, and the difference is greater than the first preset difference threshold;
the fourteenth subunit is configured to, if the strength of the interference signal is greater than the third preset interference threshold and is less than or equal to the preset highest threshold, and the difference is greater than the second preset difference threshold and is less than or equal to the first preset difference threshold, turn the current code rate down to a tenth code rate;
the fifteenth subunit is configured to set the current code rate to the default code rate if the strength of the interference signal is greater than the third preset interference threshold and less than or equal to the preset highest threshold, and the difference is less than or equal to the second preset difference threshold.
On the basis of the above embodiment, preferably, the system further comprises a proportion module, wherein:
the proportion module is used for resetting the adjusted current code rate to the default code rate if the ratio of the strength of the effective signal to the strength of the interference signal is greater than a preset proportion threshold.
On the basis of the above embodiment, preferably, the system further includes a retraction module, wherein:
and the withdrawing module is used for keeping the current code rate and transmitting the effective signal by using the current code rate if the withdrawing module is not adjusted.
The various modules in the signal processing system described above may be implemented in whole or in part by software, hardware, and combinations thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
In an embodiment of the present invention, a bluetooth headset is provided, which includes a processor, a memory, a network interface, and a database connected via a system bus. Wherein the processor of the bluetooth headset is configured to provide computing and control capabilities. The memory of the Bluetooth headset comprises a computer storage medium and an internal memory. The computer storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for the operation of an operating system and computer programs in the computer storage media. The computer program is executed by a processor to implement a signal processing method.
In one embodiment, a computer device is provided, which includes a memory, a processor, and a computer program stored on the memory and executable on the processor, and when the processor executes the computer program, the steps of the signal processing method in the above-mentioned embodiments are implemented. Alternatively, the functions of the modules/units in this embodiment of the signal processing system are realized when the processor executes the computer program.
In an embodiment, a computer storage medium is provided, on which a computer program is stored, which, when being executed by a processor, implements the steps of the signal processing method in the above-described embodiments. Alternatively, the computer program realizes the functions of the modules/units in this embodiment of the signal processing system described above when executed by the processor.
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).
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions.
The above examples only express preferred embodiments of the present invention, 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 inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A signal processing method, comprising:
acquiring the intensity of an interference signal in the use environment of the target Bluetooth headset;
acquiring the strength of an effective signal sent by terminal equipment connected with the target Bluetooth headset;
and judging whether the current code rate corresponding to the effective signal is adjusted or not according to the intensity of the interference signal and the intensity of the effective signal, and if so, sending the effective signal by using the adjusted current code rate.
2. The signal processing method of claim 1, wherein the determining whether to adjust the current code rate corresponding to the effective signal according to the strength of the interference signal and the strength of the effective signal comprises:
and judging whether to adjust the current code rate according to the intensity of the interference signal, the intensity of the effective signal and the interval to which the difference value between the intensity of the interference signal and the intensity of the effective signal belongs.
3. The signal processing method of claim 2, wherein the determining whether to adjust the current code rate according to the section to which the strength of the interference signal, the strength of the effective signal, and the difference between the strength of the interference signal and the strength of the effective signal belong comprises:
if the strength of the interference signal is smaller than or equal to the lowest preset interference threshold, adjusting the current code rate corresponding to the effective signal according to the interval to which the strength of the effective signal belongs;
if the strength of the interference signal is greater than the highest preset interference threshold value, adjusting the current code rate corresponding to the effective signal to a preset minimum code rate;
if the intensity of the interference signal is greater than the lowest preset interference threshold and less than or equal to the highest preset interference threshold, adjusting the current code rate corresponding to the effective signal according to the interval to which the difference between the intensity of the interference signal and the intensity of the effective signal belongs.
4. The signal processing method of claim 3, wherein if the strength of the interference signal is less than or equal to a minimum preset interference threshold, adjusting the current code rate corresponding to the effective signal according to an interval to which the strength of the effective signal belongs, comprises:
if the strength of the effective signal is greater than a first preset effective threshold value, setting the current code rate as a default code rate;
if the strength of the effective signal is smaller than or equal to a second preset effective threshold and larger than a third preset effective threshold, reducing the current code rate to a first code rate;
and if the strength of the effective signal is less than or equal to the third preset effective threshold and greater than a fourth preset effective threshold, reducing the current code rate to a second code rate.
5. The signal processing method of claim 3, wherein the adjusting the current code rate corresponding to the effective signal according to the section to which the difference between the strength of the interference signal and the strength of the effective signal belongs comprises:
if the strength of the interference signal is greater than the lowest preset interference threshold value and less than or equal to a first preset interference threshold value, and the difference value is greater than a first preset difference value threshold value, reducing the current code rate to a third code rate;
if the strength of the interference signal is greater than the lowest preset interference threshold and less than or equal to the first preset interference threshold, and the difference is greater than a second preset difference threshold and less than or equal to the first preset difference threshold, reducing the current code rate to a fourth code rate;
if the strength of the interference signal is greater than the lowest preset interference threshold value, is less than or equal to the first preset interference threshold value, and the difference value is less than or equal to the second preset difference value threshold value, setting the current code rate as the default code rate;
if the strength of the interference signal is greater than the first preset interference threshold value and less than or equal to a second preset interference threshold value, and the difference value is greater than the first preset difference value threshold value, reducing the current code rate to a fifth code rate;
if the strength of the interference signal is greater than the first preset interference threshold and less than or equal to a second preset interference threshold, and the difference is greater than the second preset difference threshold and less than or equal to the first preset difference threshold, reducing the current code rate to a sixth code rate;
if the strength of the interference signal is greater than the first preset interference threshold value, and less than or equal to a second preset interference threshold value, and the difference value is less than or equal to the second preset difference value threshold value, setting the current code rate as the default code rate;
if the strength of the interference signal is greater than the second preset interference threshold and less than or equal to the third preset interference threshold, and the difference is greater than the first preset difference threshold, reducing the current code rate to a seventh code rate;
if the strength of the interference signal is greater than the second preset interference threshold and less than or equal to the third preset interference threshold, and the difference is greater than the second preset difference threshold and less than or equal to the first preset difference threshold, reducing the current code rate to an eighth code rate;
if the strength of the interference signal is greater than the second preset interference threshold, less than or equal to the third preset interference threshold, and the difference is less than or equal to the second preset difference threshold, setting the current code rate as the default code rate;
if the strength of the interference signal is greater than the third preset interference threshold and less than or equal to the preset highest threshold, and the difference is greater than the first preset difference threshold, reducing the current code rate to a ninth code rate;
if the strength of the interference signal is greater than the third preset interference threshold and less than or equal to the preset highest threshold, and the difference is greater than the second preset difference threshold and less than or equal to the first preset difference threshold, reducing the current code rate to a tenth code rate;
and if the strength of the interference signal is greater than the third preset interference threshold value and less than or equal to the preset highest threshold value, and the difference value is less than or equal to the second preset difference value threshold value, setting the current code rate as the default code rate.
6. The signal processing method according to any one of claims 1 to 5, further comprising:
and if the ratio of the strength of the effective signal to the strength of the interference signal is greater than a preset ratio threshold, resetting the adjusted current code rate to the default code rate.
7. The signal processing method according to any one of claims 1 to 5, further comprising:
if not, keeping the current code rate, and sending the effective signal by using the current code rate.
8. A signal processing system, comprising:
the interference module is used for acquiring the intensity of an interference signal in the use environment of the target Bluetooth headset;
the effective module is used for acquiring the strength of an effective signal sent by the terminal equipment connected with the target Bluetooth headset;
and the adjusting module is used for judging whether to adjust the current code rate corresponding to the effective signal or not according to the strength of the interference signal and the strength of the effective signal, and if so, sending the effective signal by using the adjusted current code rate.
9. A bluetooth headset comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor realizes the steps of the signal processing method according to any one of claims 1 to 7 when executing the computer program.
10. A computer storage medium storing a computer program, characterized in that the computer program, when executed by a processor, implements the steps of the signal processing method according to any one of claims 1 to 7.
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