CN113436648B - Bidirectional communication system with transmission channel selection function - Google Patents
Bidirectional communication system with transmission channel selection function Download PDFInfo
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- CN113436648B CN113436648B CN202110989255.5A CN202110989255A CN113436648B CN 113436648 B CN113436648 B CN 113436648B CN 202110989255 A CN202110989255 A CN 202110989255A CN 113436648 B CN113436648 B CN 113436648B
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/48—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use
- G10L25/51—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use for comparison or discrimination
- G10L25/60—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 specially adapted for particular use for comparison or discrimination for measuring the quality of voice signals
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
- G10L19/16—Vocoder architecture
- G10L19/18—Vocoders using multiple modes
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
- G10L19/16—Vocoder architecture
- G10L19/18—Vocoders using multiple modes
- G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0006—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format
- H04L1/0007—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format by modifying the frame length
Abstract
The invention relates to a two-way communication system with a transmission channel selection function, which comprises a receiving module, a receiving module and a control module, wherein the receiving module comprises a receiving unit and a first detection unit and is used for detecting the signal-to-noise ratio of received voice information; the processing module is respectively connected with the first detection unit and the second detection unit, when the output module carries out voice transmission, the transmission channel is selected according to the signal-to-noise ratio detected by the first detection unit and the coded data length, and the channel selection is corrected through the signal-to-noise ratio of the received voice information, so that the receiving module and the output module can correct the other using state according to the using state of one of the receiving module and the output module in the using process, and the service life of the receiving module and the service life of the output module tend to be consistent.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a bidirectional communication system having a transmission channel selection function.
Background
In the course of communication, one-way communication and two-way communication are generally included, and one of the one-way communication is an output side and the other is a reception side. Because of the limitation of one-way communication, the roles of the output party and the receiving party cannot be interchanged, and therefore effective interaction cannot be formed.
The two-way communication is realized by taking an earphone with a headset as an example, a receiver of the earphone is a receiving party, and the headset is an input party, so that the earphone has a two-way communication function, can receive external voice, can output the voice, can transmit the voice at the same time, cannot interfere with each other, and can realize information interaction.
However, in the two-way communication system, one party is usually the dominant party, for example, the two-way communication system with the earphone as the dominant party is abandoned when the voice cannot be received, and whether the earphone of the output party is intact or not is not considered, so that the two-way communication function of receiving and outputting cannot be maximized during the use of the two-way system.
Disclosure of Invention
Therefore, the invention provides a two-way communication system with a transmission channel selection function, which can solve the problem of low utilization efficiency of the two-way communication function.
To achieve the above object, the present invention provides a bidirectional communication system with a transmission channel selection function, comprising:
the receiving module comprises a receiving unit and a first detection unit, wherein the receiving unit is used for receiving voice information sent by other terminals, and the first detection unit is connected with the receiving unit and used for detecting the signal-to-noise ratio of the received voice information;
the output module establishes a plurality of transmission channels with other terminals, and comprises a sending unit and a second detection unit, wherein the sending unit is used for outputting the voice coded data to other receiving terminals through the transmission channels, and the second detection unit is connected with the sending unit and is used for detecting the data length of the voice coded data;
and the processing module is respectively connected with the first detection unit and the second detection unit, and selects a transmission channel according to the signal-to-noise ratio detected by the first detection unit and the coded data length when the output module carries out voice transmission.
Further, the selecting a transmission channel according to the snr and the encoded data length detected by the first detecting unit includes:
the processing module is internally provided with the serial number of each transmission channel and sequences the transmission channels according to the transmission rate of each channel, the processing module is internally provided with channel parameter values C which are in one-to-one correspondence with the codes of each transmission channel,
the channel parameter value C = a × N + b × L/L0, and a + b =1, where a denotes a weighting coefficient of a signal-to-noise ratio, N denotes a signal-to-noise ratio of a receiving module, b denotes a weighting coefficient of a data length, L denotes an encoded data length, and L0 denotes a data standard length.
Furthermore, the processing module is further provided with a first signal-to-noise ratio N1, a second signal-to-noise ratio N2, a third signal-to-noise ratio N3, N1< N2< N3, the signal-to-noise ratio N of the receiving module is continuously compared with each signal-to-noise ratio, and a correction coefficient for correcting the weighting coefficient of the signal-to-noise ratio is selected according to the comparison result.
Further, the selecting a correction coefficient for correcting the weighting coefficient of the snr according to the comparison result includes:
if the signal-to-noise ratio N of the receiving module is less than or equal to the first signal-to-noise ratio N1, correcting the weight coefficient a of the signal-to-noise ratio by adopting a first correction coefficient k 1;
if the second signal-to-noise ratio N2 is larger than or equal to the signal-to-noise ratio N of the receiving module and larger than the first signal-to-noise ratio N1, correcting the weight coefficient a of the signal-to-noise ratio by adopting a second correction coefficient k 2;
if the third signal-to-noise ratio N3 is larger than or equal to the signal-to-noise ratio N of the receiving module and larger than the second signal-to-noise ratio N2, correcting the weight coefficient a of the signal-to-noise ratio by adopting a third correction coefficient k 3;
and if the signal-to-noise ratio N of the receiving module is greater than the third signal-to-noise ratio N3, correcting the weighting coefficient a of the signal-to-noise ratio by using a fourth correction coefficient k 4.
Further, the first correction coefficient k1 corrects the weight coefficient a of the snr, and the corrected weight coefficient a1 '= a &' of the snr is stored
The second correction coefficient k2 corrects the weight coefficient a of the snr, and the corrected weight coefficient a 2' = a &isstored in the memory
The third correction coefficient k3 corrects the weight coefficient a of the snr, and the corrected weight coefficient a 3' = a × (1 + k 3) of the snr;
the fourth correction coefficient k4 corrects the snr weighting coefficient a, and the corrected snr weighting coefficient a 4' = a × (1 + k 4).
Further, when the output module outputs voice, a data discarding matrix Q (Q1, Q2, Q3) is further arranged in the processing module, wherein Q1 represents a first discarding rate, Q2 represents a second discarding rate, and Q3 represents a third discarding rate, and the processing module further comprises a discarding module for discarding the voice data and then performing encoding transmission;
before data transmission, detecting the actual network condition, and if the network condition is good, adopting a first discarding rate Q1 to discard the voice data by a discarding module;
if the network condition is medium, the voice data is discarded by the discarding module by adopting a second discarding rate Q2;
if the network condition is poor, the discarding module discards the voice data by adopting a third discarding rate Q3;
and carrying out coding transmission on the discarded data.
Further, when determining the weight coefficient b of the data length, selecting different adjustment coefficients m according to different discarding rates to adjust the weight coefficient b of the data length;
a first adjusting coefficient m1, a second adjusting coefficient m2 and a third adjusting coefficient m3 are arranged in the processing unit, and when the discarding module selects the first discarding rate, the first adjusting coefficient m1 is selected to adjust the weight coefficient b of the data length;
when the discarding module selects the second discarding rate, selecting a second adjusting coefficient m2 to adjust the weighting coefficient b of the data length;
when the discarding module selects the third discarding rate, the third adjusting coefficient m3 is selected to adjust the weighting coefficient b of the data length.
Further, when the first adjustment coefficient m1 is selected to adjust the weight coefficient b of the data length, the adjusted weight coefficient is b 1' = b × (1 + m 1);
when the second adjustment coefficient m2 is selected to adjust the weight coefficient b of the data length, the adjusted weight coefficient is b 2' = b × (1 + m 2);
when the third adjustment coefficient m3 is selected to adjust the weight coefficient b of the data length, the adjusted weight coefficient is b 3' = b × (1 + m 3).
And the power supply module is respectively connected with the first detection unit, the second detection unit and the processing module and used for supplying power to the first detection unit, the second detection unit and the processing module.
Further, still including casing and back splint, receiving module, output module and processing module all set up in the casing, the back splint sets up in the casing below.
Compared with the prior art, the method has the advantages that the using state of the receiving module is determined by the signal-to-noise ratio of the received voice information through the receiving module, the transmission channel is selected according to the signal-to-noise ratio for measuring the using state of the receiving module and the coded data length, and compared with the method that the channel is selected directly according to the coded data length in the data transmission process in the prior art, the channel selection is corrected through the signal-to-noise ratio of the voice information received by the receiving module, so that the receiving module and the output module can correct the other using state according to the using state of one of the receiving module and the output module in the using process, and the using life of the receiving module and the output module tends to be consistent.
Particularly, the channel parameter values are calculated to determine the corresponding transmission channels by setting the one-to-one correspondence relationship between the channel parameter values and the codes of each transmission channel, so that the channel selection rate is improved, and when the channel parameter values are set, the weighting coefficients of the signal-to-noise ratio and the data length are set, so that the channel parameter values can be actually adjusted according to the signal-to-noise ratio and the data length to realize the accurate selection of the transmission channels and improve the accuracy of the channel selection.
Particularly, a first signal-to-noise ratio N1, a second signal-to-noise ratio N2 and a third signal-to-noise ratio N3 are arranged in the processing module, N1 is smaller than N2 and is smaller than N3, then the signal-to-noise ratio N of the receiving module is compared with each signal-to-noise ratio, a comparison result is obtained, the range of the signal-to-noise ratio N of the receiving module is determined, and a correction coefficient for correcting the weight coefficient of the signal-to-noise ratio is selected according to the comparison result, so that the signal-to-noise ratio of the corrected receiving module is more accurate, the channel is also more matched, the matching performance of the receiving module and the output module is improved, and the consistency of the service time of the receiving module and the output module is improved.
Particularly, if the actual signal-to-noise ratio of the receiving module is smaller, the weighting coefficient a of the signal-to-noise ratio is corrected by adopting the first correction coefficient, and if the signal-to-noise ratio of the receiving module is larger, the weighting coefficient a of the signal-to-noise ratio is corrected by adopting the fourth correction coefficient, and two levels are arranged between the larger and the smaller, so that the accurate correction of the weighting coefficient a is realized, the precision of channel selection is improved, the consistency of the service time of the receiving module and the output module is improved, and the matching of the communication time of the two-way communication system is prolonged.
In particular, when the weight coefficient a is corrected, the calculation mode of the corrected weight coefficient a can be various, and the embodiment of the invention realizes the correction calculation of the weight coefficient by two calculation methods, so that the accuracy of the weight coefficient a is improved, the selection of a channel is more accurate, the consistency of the service time of a receiving module and an output module is improved, and the matching of the communication time of a two-way communication system is prolonged.
Particularly, by setting the discarding rate, voice data is discarded and simplified, the speed of voice data transmission is improved, and the discarding rate is selected according to the actual network condition, so that real-time selection is performed according to the network state in the data transmission process, and the high efficiency of data transmission is improved.
In particular, the voice data transmitted is discarded by using the discarding module, the discarding rate is set so as to realize the simplification of the voice data and the discarding of redundant data, so that the data is simplified in the transmission process, the data transmission efficiency is improved, and the data length is reduced if the discarding rate is high according to the weight coefficient b of the data length of the discarding rate, so that the channel requirement required by the transmitted data can be properly reduced.
Particularly, when the adjustment coefficient is adopted for adjustment, the adjusted weight coefficient is a multiple of the weight coefficient b of the original data length, and the corresponding multiple is determined by the adjustment coefficient, so that the accuracy of the weight coefficient b of the data length is improved, the selection of the channel is more accurate when the voice data is output, the accuracy of the output module for selecting the channel is improved, and the service time of the output module and the service time of the receiving module are consistent.
Especially, through setting up the power, realize continuously supplying power, guarantee first detecting element, second detecting element and processing module's stability, and the chip volume that charges can charge many times, used repeatedly improves the life of the two-way communication system who has transmission channel selection function, guarantees two-way communication's validity.
Particularly, the receiving module, the output module and the processing module are effectively protected by arranging the shell, the probability that the receiving module, the output module and the processing module are damaged by the outside is reduced, the service life of the two-way communication system with the transmission channel selection function is prolonged, and the service efficiency is improved.
Drawings
Fig. 1 is a schematic structural diagram of a bidirectional communication system with a transmission channel selection function according to an embodiment of the present invention.
Detailed Description
In order that the objects and advantages of the invention will be more clearly understood, the invention is further described below with reference to examples; it should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and do not limit the scope of the present invention.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1, a wireless bidirectional system according to an embodiment of the present invention includes:
the receiving module 10 comprises a receiving unit 11 and a first detecting unit 12, the receiving unit is used for receiving voice information sent by other terminals, and the first detecting unit is connected with the receiving unit and used for detecting the signal-to-noise ratio of the received voice information;
the output module 20, the output module establishes a plurality of transmission channels with other terminals, the output module includes the sending unit 21 and the second detecting unit 22, the sending unit is used to output the encoded voice to other receiving ends through the transmission channels, the second detecting unit is connected with the sending unit, and is used to detect the data length after the voice encoding;
and the processing module 30 is respectively connected with the first detection unit and the second detection unit, and selects a transmission channel according to the signal-to-noise ratio detected by the first detection unit and the coded data length when the output module performs voice transmission.
In the embodiment of the invention, the use state of the receiving module is determined by the signal-to-noise ratio of the voice information received by the receiving module, and the transmission channel is selected according to the signal-to-noise ratio for measuring the use state of the receiving module and the coded data length.
Specifically, the selecting a transmission channel according to the snr and the encoded data length detected by the first detecting unit includes:
the processing module is internally provided with the serial number of each transmission channel and sequences the transmission channels according to the transmission rate of each channel, the processing module is internally provided with channel parameter values C which are in one-to-one correspondence with the codes of each transmission channel,
the channel parameter value C = a × N + b × L/L0, and a + b =1, where a denotes a weighting coefficient of a signal-to-noise ratio, N denotes a signal-to-noise ratio of a receiving module, b denotes a weighting coefficient of a data length, L denotes an encoded data length, and L0 denotes a data standard length.
Specifically, in the embodiment of the present invention, a one-to-one correspondence relationship between a channel parameter value and a code of each transmission channel is set, the channel parameter value is calculated to determine a corresponding transmission channel, and a rate of channel selection is increased.
Specifically, the processing module is further provided with a first signal-to-noise ratio N1, a second signal-to-noise ratio N2 and a third signal-to-noise ratio N3, and the signal-to-noise ratio N of the receiving module is continuously compared with each signal-to-noise ratio, and according to the comparison result, a correction coefficient for correcting the weighting coefficient of the signal-to-noise ratio is selected.
Specifically, in the embodiment of the present invention, a first signal-to-noise ratio N1, a second signal-to-noise ratio N2, a third signal-to-noise ratio N3, N1< N2< N3, are set in a processing module, and then the signal-to-noise ratio N of a receiving module is compared with each signal-to-noise ratio to obtain a comparison result, and a range where the signal-to-noise ratio N of the receiving module is located is determined, and a correction coefficient for correcting a weight coefficient of the signal-to-noise ratio is selected according to the comparison result, so that the signal-to-noise ratio of the receiving module after correction is more accurate, and thus the selection of a channel is more matched, the matching between the receiving module and an output module is improved, and the consistency of the use time of the receiving module and the output module is improved.
Specifically, the selecting a correction coefficient for correcting the weighting coefficient of the snr according to the comparison result includes:
if the signal-to-noise ratio N of the receiving module is less than or equal to the first signal-to-noise ratio N1, correcting the weight coefficient a of the signal-to-noise ratio by adopting a first correction coefficient k 1;
if the second signal-to-noise ratio N2 is larger than or equal to the signal-to-noise ratio N of the receiving module and larger than the first signal-to-noise ratio N1, correcting the weight coefficient a of the signal-to-noise ratio by adopting a second correction coefficient k 2;
if the third signal-to-noise ratio N3 is larger than or equal to the signal-to-noise ratio N of the receiving module and larger than the second signal-to-noise ratio N2, correcting the weight coefficient a of the signal-to-noise ratio by adopting a third correction coefficient k 3;
and if the signal-to-noise ratio N of the receiving module is greater than the third signal-to-noise ratio N3, correcting the weighting coefficient a of the signal-to-noise ratio by using a fourth correction coefficient k 4.
Specifically, in the embodiment of the present invention, if the actual signal-to-noise ratio of the receiving module is small, the first correction coefficient is used to correct the weighting coefficient a of the signal-to-noise ratio, and if the signal-to-noise ratio of the receiving module is large, the fourth correction coefficient is used to correct the weighting coefficient a of the signal-to-noise ratio, and two levels are provided between the large level and the small level, so that the accurate correction of the weighting coefficient a is realized, the accuracy of channel selection is improved, the consistency of the service time of the receiving module and the output module is improved, and the matching of the communication time of the bidirectional communication system is prolonged.
Specifically, the first correction coefficient k1 corrects the weight coefficient a of the snr, and the corrected weight coefficient a 1' = a &isstored in the memory
The second correction coefficient k2 corrects the weight coefficient a of the snr, and the corrected weight coefficient a 2' = a &isstored in the memory
The third correction coefficient k3 corrects the weight coefficient a of the snr, and the corrected weight coefficient a 3' = a × (1 + k 3) of the snr;
the fourth correction coefficient k4 corrects the snr weighting coefficient a, and the corrected snr weighting coefficient a 4' = a × (1 + k 4).
Specifically, when the weight coefficient a is corrected, the calculation mode of the corrected weight coefficient a can be various, and the embodiment of the invention realizes the correction calculation of the weight coefficient by two calculation methods, so that the accuracy of the weight coefficient a is improved, the selection of a channel is more accurate, the consistency of the service time of a receiving module and an output module is improved, and the matching of the communication time of a two-way communication system is prolonged.
Specifically, when the output module outputs voice, a data discarding matrix Q (Q1, Q2, Q3) is further arranged in the processing module, wherein Q1 represents a first discarding rate, Q2 represents a second discarding rate, and Q3 represents a third discarding rate, and the processing module further comprises a discarding module, configured to discard voice data and then perform encoding transmission;
before data transmission, detecting the actual network condition, and if the network condition is good, adopting a first discarding rate Q1 to discard the voice data by a discarding module;
if the network condition is medium, the voice data is discarded by the discarding module by adopting a second discarding rate Q2;
if the network condition is poor, the discarding module discards the voice data by adopting a third discarding rate Q3;
and carrying out coding transmission on the discarded data.
Specifically, the embodiment of the invention sets the discarding rate to discard and simplify the voice data, improves the speed of voice data transmission, and selects the discarding rate according to the actual network condition, so that the real-time selection is performed according to the network state in the data transmission process, and the high efficiency of data transmission is improved.
Specifically, when determining the weight coefficient b of the data length, selecting different adjustment coefficients m according to different discarding rates to adjust the weight coefficient b of the data length;
a first adjusting coefficient m1, a second adjusting coefficient m2 and a third adjusting coefficient m3 are arranged in the processing unit, and when the discarding module selects the first discarding rate, the first adjusting coefficient m1 is selected to adjust the weight coefficient b of the data length;
when the discarding module selects the second discarding rate, selecting a second adjusting coefficient m2 to adjust the weighting coefficient b of the data length;
when the discarding module selects the third discarding rate, the third adjusting coefficient m3 is selected to adjust the weighting coefficient b of the data length.
Specifically, in the embodiment of the present invention, the discarding module is used to discard the transmitted voice data, the discarding rate is set to achieve simplification of the voice data, and redundant data is discarded, so that the data is simplified in the transmission process, and the data transmission efficiency is improved, and the data length is reduced according to the weight coefficient b of the discarding rate to the data length, so that the channel requirement required by the transmitted data can be properly reduced if the discarding rate is large.
Specifically, when the first adjustment coefficient m1 is selected to adjust the weight coefficient b of the data length, the adjusted weight coefficient is b 1' = b × (1 + m 1);
when the second adjustment coefficient m2 is selected to adjust the weight coefficient b of the data length, the adjusted weight coefficient is b 2' = b × (1 + m 2);
when the third adjustment coefficient m3 is selected to adjust the weight coefficient b of the data length, the adjusted weight coefficient is b 3' = b × (1 + m 3).
Specifically, in the embodiment of the present invention, when the adjustment coefficient is used for adjustment, the adjusted weight coefficient is a multiple of the weight coefficient b of the original data length, and the corresponding multiple is determined by the adjustment coefficient, so that the accuracy of the weight coefficient b of the data length is improved, when the voice data is output, the selection of the channel is more accurate, the accuracy of the output module in selecting the channel is improved, and the service time of the output module and the service time of the receiving module are consistent.
Specifically, the device further comprises a power module which is respectively connected with the first detection unit, the second detection unit and the processing module and used for supplying power to the first detection unit, the second detection unit and the processing module, and continuity of communication in the two-way communication process are guaranteed.
Particularly, the model of power module is CYT 5026's the chip that charges, realizes the continuous power supply of power, guarantees first detecting element, second detecting element and processing module's stability, and the chip volume that charges can charge many times, and used repeatedly improves the life of the two-way communication system who has transmission channel selection function, guarantees two-way communication's validity.
Particularly, the portable electronic device further comprises a shell and a back clamp, wherein the receiving module, the output module and the processing module are arranged in the shell, and the back clamp is arranged below the shell.
Particularly, a clamping mechanism is arranged below the shell and comprises a shaft pin, a jack, a torsion spring and a back clamp, and the back clamp is rotatably connected with the shell through the shaft pin and the torsion spring.
Specifically, the embodiment of the invention realizes effective protection of the receiving module, the output module and the processing module by arranging the shell, reduces the probability of damage of the receiving module, the output module and the processing module by the outside, prolongs the service life of the bidirectional communication system with the transmission channel selection function, and improves the use efficiency.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention; various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A two-way communication system having transport channel selection, comprising:
the receiving module comprises a receiving unit and a first detection unit, wherein the receiving unit is used for receiving voice information sent by other terminals, and the first detection unit is connected with the receiving unit and used for detecting the signal-to-noise ratio of the received voice information;
the output module establishes a plurality of transmission channels with other terminals, and comprises a sending unit and a second detection unit, wherein the sending unit is used for outputting the voice coded data to other receiving terminals through the transmission channels, and the second detection unit is connected with the sending unit and is used for detecting the data length of the voice coded data;
the processing module is respectively connected with the first detection unit and the second detection unit, and selects a transmission channel according to the signal-to-noise ratio detected by the first detection unit and the coded data length when the output module carries out voice transmission;
the selecting a transmission channel according to the signal-to-noise ratio detected by the first detection unit and the coded data length comprises:
the processing module is internally provided with the serial number of each transmission channel and sequences the transmission channels according to the transmission rate of each channel, the processing module is internally provided with channel parameter values C which are in one-to-one correspondence with the codes of each transmission channel,
the channel parameter value C = a × N + b × L/L0, and a + b =1, where a denotes a weighting coefficient of a signal-to-noise ratio, N denotes a signal-to-noise ratio of a receiving module, b denotes a weighting coefficient of a data length, L denotes an encoded data length, and L0 denotes a data standard length.
2. The two-way communication system having a transmission channel selection function according to claim 1,
the processing module is further provided with a first signal-to-noise ratio N1, a second signal-to-noise ratio N2 and a third signal-to-noise ratio N3, wherein N1 is more than N2 and less than N3, the signal-to-noise ratio N of the receiving module is continuously compared with each signal-to-noise ratio, and a correction coefficient for correcting the weight coefficient of the signal-to-noise ratio is selected according to the comparison result.
3. The two-way communication system having a transmission channel selection function according to claim 2,
the selecting a correction coefficient for correcting the weighting coefficient of the signal-to-noise ratio according to the comparison result includes:
if the signal-to-noise ratio N of the receiving module is less than or equal to the first signal-to-noise ratio N1, correcting the weight coefficient a of the signal-to-noise ratio by adopting a first correction coefficient k 1;
if the second signal-to-noise ratio N2 is larger than or equal to the signal-to-noise ratio N of the receiving module and larger than the first signal-to-noise ratio N1, correcting the weight coefficient a of the signal-to-noise ratio by adopting a second correction coefficient k 2;
if the third signal-to-noise ratio N3 is larger than or equal to the signal-to-noise ratio N of the receiving module and larger than the second signal-to-noise ratio N2, correcting the weight coefficient a of the signal-to-noise ratio by adopting a third correction coefficient k 3;
and if the signal-to-noise ratio N of the receiving module is greater than the third signal-to-noise ratio N3, correcting the weighting coefficient a of the signal-to-noise ratio by using a fourth correction coefficient k 4.
4. The two-way communication system having a transmission channel selection function according to claim 3,
the first correction coefficient k1 corrects the weight coefficient a of the snr, and the corrected weight coefficient a 1' = a &isstored in the memory
The second correction coefficient k2 corrects the weight coefficient a of the snr, and the corrected weight coefficient a 2' = a &isstored in the memory
The third correction coefficient k3 corrects the weight coefficient a of the snr, and the corrected weight coefficient a 3' = a × (1 + k 3) of the snr;
the fourth correction coefficient k4 corrects the snr weighting coefficient a, and the corrected snr weighting coefficient a 4' = a × (1 + k 4).
5. The two-way communication system having a transmission channel selection function according to claim 1,
when the output module outputs voice, a data discarding matrix Q (Q1, Q2, Q3) is further arranged in the processing module, wherein Q1 represents a first discarding rate, Q2 represents a second discarding rate, and Q3 represents a third discarding rate, and the processing module further comprises a discarding module used for discarding the voice data and then carrying out coding transmission;
before data transmission, detecting the actual network condition, and if the network condition is good, adopting a first discarding rate Q1 to discard the voice data by a discarding module;
if the network condition is medium, the voice data is discarded by the discarding module by adopting a second discarding rate Q2;
if the network condition is poor, the discarding module discards the voice data by adopting a third discarding rate Q3;
and carrying out coding transmission on the discarded data.
6. The two-way communication system having a transmission channel selection function according to claim 5,
when the weight coefficient b of the data length is determined, different adjusting coefficients m are selected according to different discarding rates to adjust the weight coefficient b of the data length;
a first adjusting coefficient m1, a second adjusting coefficient m2 and a third adjusting coefficient m3 are arranged in the processing unit, and when the discarding module selects the first discarding rate, the first adjusting coefficient m1 is selected to adjust the weight coefficient b of the data length;
when the discarding module selects the second discarding rate, selecting a second adjusting coefficient m2 to adjust the weighting coefficient b of the data length;
when the discarding module selects the third discarding rate, the third adjusting coefficient m3 is selected to adjust the weighting coefficient b of the data length.
7. The two-way communication system having a transmission channel selection function according to claim 6,
when the first adjustment coefficient m1 is selected to adjust the weight coefficient b of the data length, the adjusted weight coefficient is b 1' = b × (1 + m 1);
when the second adjustment coefficient m2 is selected to adjust the weight coefficient b of the data length, the adjusted weight coefficient is b 2' = b × (1 + m 2);
when the third adjustment coefficient m3 is selected to adjust the weight coefficient b of the data length, the adjusted weight coefficient is b 3' = b × (1 + m 3).
8. The two-way communication system having a transmission channel selection function according to any one of claims 1 to 7,
the power supply module is respectively connected with the first detection unit, the second detection unit and the processing module and used for supplying power to the first detection unit, the second detection unit and the processing module;
the receiving module, the output module and the processing module are all arranged in the shell, and the back clamp is arranged below the shell.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006038828A1 (en) * | 2004-09-29 | 2006-04-13 | Intel Corporation | Multicarrier receiver and methods of generating spatial correlation estimates for signals received with a plurality of antennas |
| CN101283559A (en) * | 2005-08-12 | 2008-10-08 | 高通股份有限公司 | Channel estimation for wireless communication |
| CN105553616A (en) * | 2015-12-18 | 2016-05-04 | 大唐联诚信息系统技术有限公司 | Channel quality indicator selection method as well as adaptive modulation and coding method and device |
| CN112953865A (en) * | 2021-04-15 | 2021-06-11 | 中国科学院微小卫星创新研究院 | Channel estimation method for large-scale multi-input multi-output system |
| CN113055110A (en) * | 2021-03-10 | 2021-06-29 | 西安电子科技大学 | Multi-carrier system link self-adaption method based on channel identification and channel classification |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US7864697B2 (en) * | 2007-08-03 | 2011-01-04 | John Papandriopoulos | Adapted method for spectrum management of digital communication systems |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006038828A1 (en) * | 2004-09-29 | 2006-04-13 | Intel Corporation | Multicarrier receiver and methods of generating spatial correlation estimates for signals received with a plurality of antennas |
| CN101283559A (en) * | 2005-08-12 | 2008-10-08 | 高通股份有限公司 | Channel estimation for wireless communication |
| CN105553616A (en) * | 2015-12-18 | 2016-05-04 | 大唐联诚信息系统技术有限公司 | Channel quality indicator selection method as well as adaptive modulation and coding method and device |
| CN113055110A (en) * | 2021-03-10 | 2021-06-29 | 西安电子科技大学 | Multi-carrier system link self-adaption method based on channel identification and channel classification |
| CN112953865A (en) * | 2021-04-15 | 2021-06-11 | 中国科学院微小卫星创新研究院 | Channel estimation method for large-scale multi-input multi-output system |
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