CN114520668A - Signal transmission method, signal transmission system and computer storage medium - Google Patents
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- 230000008054 signal transmission Effects 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 38
- 238000012545 processing Methods 0.000 claims abstract description 44
- 238000005070 sampling Methods 0.000 claims abstract description 34
- 238000004891 communication Methods 0.000 claims abstract description 24
- 230000008569 process Effects 0.000 claims abstract description 17
- 238000006243 chemical reaction Methods 0.000 claims abstract description 14
- 230000009467 reduction Effects 0.000 claims abstract description 14
- 238000005538 encapsulation Methods 0.000 claims abstract description 9
- 230000008030 elimination Effects 0.000 claims abstract description 5
- 238000003379 elimination reaction Methods 0.000 claims abstract description 5
- 230000005236 sound signal Effects 0.000 claims description 39
- 238000012544 monitoring process Methods 0.000 claims description 17
- 230000005540 biological transmission Effects 0.000 claims description 11
- 238000004590 computer program Methods 0.000 claims description 5
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 9
- 230000006870 function Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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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
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/3822—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving specially adapted for use in vehicles
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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
- G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/0208—Noise filtering
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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
- G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/0208—Noise filtering
- G10L2021/02082—Noise filtering the noise being echo, reverberation of the speech
Abstract
The application discloses a signal transmission method, a signal transmission system and a computer storage medium, wherein the signal transmission system comprises at least two split machines and a host, the split machines receive at least one input signal and process the input signal to obtain a data packet to be transmitted, a first processor in the split machines samples the input signal to obtain a sampling signal, and performs noise reduction or echo elimination processing to obtain a processed sampling signal; the second processor performs encapsulation processing and signal conversion processing on the processed sampling signal to obtain a data packet to be transmitted; the host machine processes the data packet to be transmitted to obtain an output signal, and outputs the output signal to other split machines and/or external equipment based on the receiver information carried in the output signal, so as to realize communication between at least two split machines or communication between the split machines and the external equipment. By means of the mode, the split type air conditioner can improve the utilization rate of the split type air conditioner, reduce cost and achieve long-distance transmission of signals.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a signal transmission method, a signal transmission system, and a computer storage medium.
Background
At present, the vehicle-mounted private network wireless interphone is widely applied to police law enforcement official vehicles, police dispatch control centers, special material transport vehicles, subway trains and the like, one vehicle-mounted interphone is installed on one vehicle under some conditions, but a plurality of interphones are needed in some special conditions, the dispatching control centers are needed to dispatch to ensure that effective communication can be carried out between the interphones, but a host and a control panel of the current dispatching control center are separated, a longer networking line is needed, the number of connecting cores of the current dispatching control center is large, the wire diameter is large, the wiring cost is high, and the large-scale use is not facilitated.
Disclosure of Invention
The application provides a signal transmission method, a signal transmission system and a computer storage medium, which can realize the communication between a split computer and other split computers/external equipment by using one host, improve the utilization rate of the split computer, reduce the cost and realize the long-distance transmission of signals.
In order to solve the technical problem, the technical scheme adopted by the application is as follows: the signal transmission system comprises at least two split machines and a host, wherein the split machines are used for receiving at least one input signal and processing the input signal to obtain a data packet to be transmitted, each split machine comprises a first processor and a second processor which are connected with each other, the first processor is used for sampling the input signal to obtain a sampling signal, and performing noise reduction or echo elimination processing on the sampling signal to obtain a processed sampling signal; the second processor is used for carrying out encapsulation processing and signal conversion processing on the processed sampling signals to obtain data packets to be transmitted; the host is connected with each split machine and used for processing the data packet to be transmitted to obtain an output signal and outputting the output signal to other split machines and/or external equipment based on the receiver information carried in the output signal so as to realize communication between at least two split machines or communication between the split machines and the external equipment.
In order to solve the technical problem, the technical scheme adopted by the application is as follows: a signal transmission method is provided, where the signal transmission method is applied to the signal transmission system, where the signal transmission system includes a host and at least two split devices connected to the host, and the method includes: the split machine receives at least one input signal and processes the input signal to obtain a data packet to be transmitted, wherein the split machine comprises a first processor and a second processor which are connected with each other, the first processor samples the input signal to obtain a sampling signal, and performs noise reduction or echo cancellation processing on the sampling signal to obtain a processed sampling signal; the second processor performs encapsulation processing and signal conversion processing on the processed sampling signal to obtain the data packet to be transmitted; the host computer processes the data packet to be transmitted to obtain an output signal, and outputs the output signal to other split computers and/or external equipment based on the receiver information carried in the output signal, so as to realize communication between at least two split computers or communication between the split computers and the external equipment.
In order to solve the technical problem, the technical scheme adopted by the application is as follows: there is provided a computer storage medium for storing a computer program for implementing the signal transmission method described above when executed by a processor.
Through the scheme, the beneficial effects of the application are that: the signal transmission system comprises a host and at least two split machines connected with the host, wherein each split machine comprises a first processor and a second processor, the first processor can sample an input signal to generate a sampling signal, and then the sampling signal is subjected to noise reduction or echo elimination processing to filter an interference component in the sampling signal; the second processor can carry out encapsulation and signal conversion on the processed sampling signal to generate a data packet to be transmitted; when at least two split machines or the split machines and external equipment need to communicate, the host can process a data packet to be transmitted sent by the split machines to generate an output signal, and the output signal is output to other split machines or the external equipment according to receiver information in the output signal, so that communication connection between the at least two split machines or the split machines and the external equipment is realized, and because one host is utilized to establish communication connection between the at least two split machines or the split machines and the external equipment, the use amount of the host can be reduced, the use rate of the split machines is improved, the cost is reduced, and resource saving is facilitated; and because the analog signal is converted into the digital audio signal suitable for the long-distance constant, the signal can be transmitted for a longer distance, and the signal transmission distance is effectively increased.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts. Wherein:
fig. 1 is a schematic structural diagram of an embodiment of a signal transmission system provided in the present application;
fig. 2 is a schematic structural diagram of another embodiment of a signal transmission system provided in the present application;
fig. 3 is a schematic structural diagram of another embodiment of a signal transmission system provided in the present application;
fig. 4 is a schematic flowchart of an embodiment of a signal transmission method provided in the present application;
fig. 5 is a schematic structural diagram of a signal transmission system according to still another embodiment of the present application;
FIG. 6 is a schematic structural diagram of an embodiment of a computer storage medium provided in the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In a subway application scene, in order to facilitate turning around, a subway is provided with a head and a tail, the head and the tail are respectively provided with one interphone when the interphones are installed, so that the cost is increased, and one interphone is always in an idle state in a train running stage, so that resources are wasted; in an application scene of a dispatching center, the dispatching center is provided with an interphone for each dispatching person, a plurality of dispatching persons in a close distance are arranged in the same group, and when the interphones are configured according to the prior art, the use efficiency of the interphones is not high, the arrangement of the antennae is dense, and the mutual interference is large; in addition, the split machine of current platform has the core number that the network deployment is wired many, the line footpath is big, the wiring is difficult and the cost is higher problem, and a host computer can only be joined in marriage a control panel, and audio signal handles and has put the host computer end, has a serious drawback: the connection of the split-type telephone cannot be too long, otherwise, the echo cannot be completely eliminated due to too long delay when the duplex talks, and the call quality is seriously influenced.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an embodiment of a signal transmission system provided in the present application, the signal transmission system including: at least two split machines 11 and a main machine 12.
The split machine 11 is configured to receive at least one input signal, process the input signal, and obtain a data packet to be transmitted, where the input signal may be an analog signal, and the generated data packet to be transmitted is a signal suitable for long-distance transmission. Specifically, the split-body machine 11 includes a first processor 111 and a second processor 112 connected to each other, the first processor 111 is configured to sample an input signal to obtain a sampled signal, and perform noise reduction or echo cancellation processing on the sampled signal to eliminate or reduce an interference component in the sampled signal to obtain a processed sampled signal; the second processor 112 performs encapsulation processing and signal conversion processing on the processed sampling signal to obtain a data packet to be transmitted.
The host 12 is connected to each split device 11, and is configured to process a data packet to be transmitted to obtain an output signal; specifically, the host 12 may perform encoding, decoding, or mixing on a data packet to be transmitted, so as to obtain a processed signal, i.e., an output signal.
The host 12 is further configured to output the output signal to other split devices and/or external devices based on the receiver information carried in the output signal after the output signal is generated, so as to implement communication between at least two split devices 11 or communication between the split devices 11 and the external devices; specifically, the receiver information may be an address of the receiver, the host 12 may output the output signal to another split device matched with the receiver information, so that the split device 11 that sends the data packet to be transmitted to the host 12 is in communication connection with the other split device, or the host 12 sends the output signal to an external device matched with the receiver information, so that the split device 11 is in communication connection with the external device, and the external device may be another host, the split device 11 connected with another host, or another device; it is understood that the receiver information may also be an identifier of the receiver, and the identifier may be previously assigned to each split computer 11 and all external devices to distinguish different split computers 11 from external devices, so as to facilitate subsequent signal transmission.
The embodiment provides a signal transmission system, which can be applied to a wireless vehicle-mounted terminal interphone or a control center dispatching interphone, the signal transmission system comprises a host 12 and at least two split-body machines 11 connected with the host 12, and the split-body machines 11 can perform noise reduction, echo cancellation, packaging processing or signal conversion processing to generate a data packet to be transmitted; when at least two split computers 11 need to communicate, the host 12 can process a data packet to be transmitted sent by the split computers 11, generate an output signal and output the output signal to other split computers, so that communication connection between different split computers 11 mounted on the same host 12 is realized, or communication connection between the split computers 11 mounted on different host computers 12 is realized, and because one host 12 is used to connect at least two split computers 11 or the split computers 11 with external equipment, the usage amount of the host 12 is reduced, the utilization rate of the split computers 11 is improved, the cost is reduced, and resource saving is facilitated; and because the analog signal is converted into the digital audio signal suitable for the long-distance constant, the signal can be transmitted for a longer distance, and the signal transmission distance can be effectively increased.
Referring to fig. 2, fig. 2 is a schematic structural diagram of another embodiment of a signal transmission system provided in the present application, the signal transmission system including: at least two split machines 21 and a main machine 22.
Each split machine 21 includes a first processor 211 and a second processor 212 connected to each other; the first processor 211 is configured to sample an input signal to obtain a sampled signal, and perform noise reduction or echo cancellation processing on the sampled signal to obtain a processed sampled signal; specifically, the input signal may be a video signal or an audio signal, and the sampling signal is a discrete signal. The second processor 212 is configured to perform signal conversion processing on the processed sampling signal to obtain a digital audio signal, and package the digital audio signal according to a preset Protocol to generate a data packet to be transmitted, where the preset Protocol includes a TCP/IP (Transmission Control Protocol/Internet Protocol), an RS485 Protocol, or a USB (Universal Serial Bus) Protocol; in addition, the second processor 212 may encode or decode the processed sampling signal.
The host 22 comprises a third processor 221, and the third processor 221 is connected with the split machine 21; specifically, the third processor 221 is connected to the second processor 212, and the third processor 221 is configured to monitor, encode, and decode a data packet to be transmitted or mix at least two data packets to be transmitted to obtain an output signal.
In a specific embodiment, as shown in fig. 2, the host 22 further includes a transmitting circuit 222, the transmitting circuit 222 is connected to the third processor 221, and the transmitting circuit 222 is configured to transmit the signal output by the third processor 221 to other split devices and/or external devices.
In another specific embodiment, as shown in fig. 2, the host 22 further includes a receiving circuit 223, where the receiving circuit 223 is configured to receive the radio frequency signal sent by another split device and send the radio frequency signal to the third processor 221; the third processor 221 is further configured to process the radio frequency signal to obtain a monitoring signal, and send the monitoring signal to the split machine 21, so that the split machine 21 plays the monitoring signal.
In another embodiment, the input signal is an audio signal, and referring to fig. 2 and fig. 3 in combination, the at least two splitters 21 include a first splitter 21a and a second splitter 21b, the first processor 211 is an audio processing circuit, the second processor 212 is an audio signal codec circuit, the third processor 221 includes a first codec 2211, a mixer 2212 and a second codec 2213 connected in sequence, the third processor 221 may be connected to the second processor 212 through a signal line, and the signal line may transmit the audio signal and the control signal at the same time.
The first split machine 21a and the second split machine 21b are near to each other, so that not only can the input audio signal be collected, but also the audio signal can be played, and the audio processing circuit 221 can be used for operations such as noise reduction or echo cancellation, and the processed audio signal is not limited to transmission delay and can be transmitted for a longer distance; the host 22 is at a remote end, and the host 22 can encode, decode, multiplex or sound effect process the audio signal; when the first split device 21a communicates with the second split device 21b, the first split device 21a may send the audio signal to the host 22, and the host 22 forwards the audio signal to the second split device 21b, so as to implement communication between the first split device 21a and the second split device 21 b.
In this embodiment, under the condition of having one host 22, at least two split devices 21 can be collocated, at least two split devices 21 can utilize the host 22 to realize one-to-one or one-to-many calling, the split devices 21 have higher use efficiency, the use cost can be reduced, multi-path time-sharing talkback can be realized, the interference of an antenna is smaller, and the problems of low use efficiency of a single wireless terminal and intensive mutual interference of the antennas in a control center can be solved; because the control signal and the audio signal share one signal wire for transmission, the number of cores of the wire can be obviously reduced, and the wiring cost is reduced.
Referring to fig. 4 to 5, fig. 4 is a schematic flowchart of an embodiment of a signal transmission method provided in the present application, and fig. 5 is a schematic structural diagram of a further embodiment of a signal transmission system provided in the present application, where the signal transmission method is applied to the signal transmission system, the signal transmission system includes a host 52 and at least two split machines 51 connected to the host 52, and the method includes:
step 41: the split machine receives at least one input signal and processes the input signal to obtain a data packet to be transmitted.
The split machine 51 may sample the input signal to obtain a sampled signal, and perform noise reduction or echo cancellation processing on the sampled signal to obtain a processed sampled signal; then, performing signal conversion on the processed sampling signal to obtain a data packet to be transmitted; specifically, the split-body machine 51 includes a first processor 511 and a second processor 512 connected to each other, where the first processor 511 is configured to sample an input signal to obtain a sampled signal, and perform noise reduction or echo cancellation processing on the sampled signal to eliminate or reduce an interference component in the sampled signal to obtain a processed sampled signal; the second processor 512 performs encapsulation processing and signal conversion processing on the processed sampling signal to obtain a data packet to be transmitted.
Step 42: the host machine processes the data packet to be transmitted to obtain an output signal, and outputs the output signal to other split machines and/or external equipment based on the receiver information carried in the output signal, so as to realize communication between at least two split machines or communication between the split machines and the external equipment.
In a specific embodiment, the host 52 may monitor, encode, and decode the data packets to be transmitted or mix at least two data packets to be transmitted to obtain an output signal, and then transmit the output signal or send the output signal to other split devices; or the host 52 may receive the radio frequency signals sent by other split devices, process the radio frequency signals, and obtain monitoring signals; the listening signal is then sent to the split 51 so that the split 51 plays the listening signal.
For example, the split-body unit 51 performs simplex group calling, the split-body unit 51 may first send the collected audio signal to the audio processing circuit 511 for noise reduction or echo cancellation, and then output the processed audio signal to the audio signal codec circuit 512 to convert the processed audio signal into a signal suitable for long-distance transmission; specifically, the processed audio signal may be converted into a digital audio signal, the digital audio signal is encapsulated by using a TCP/IP, RS485 protocol, or USB protocol, and the to-be-transmitted data packet is sent to the host 52, where the to-be-transmitted data packet includes the audio signal to be transmitted and receiver information, and the receiver information is used to identify a device that receives the audio signal.
The host 52 may perform operations such as mixing, monitoring, encoding or decoding on the received audio signal transmitted over a long distance; for example, when split phone a and split phone B are currently talking, if split phone C calls split phone a, a call alert tone is generated, and the call alert tone is used as a mixed tone and can be heard by the user of split phone a; the host 52 may then transmit the processed audio signal through the transmit/receive circuit 522.
In addition, the host 52 may convert the audio signal when receiving the audio signal, so that the audio signal becomes an audio monitoring signal capable of long-distance transmission, and is sent to other split devices, and the other split devices may process and play the audio monitoring signal after receiving the audio monitoring signal.
In the embodiment, the split-body machine 51 is used at the near end to process the audio signal, so that noise reduction or echo cancellation processing and the like can be performed on the audio signal, the transmission of the audio signal is not limited, and the transmission distance of the audio signal can be prolonged; the host 52 is utilized to carry out post-processing on the audio signal at the far end, so that the audio function is more complete, the functions of multi-channel mutual monitoring and the like are realized, one-to-one or one-to-many calling can be realized between at least two split machines 51, the realization is simple, the installation of the vehicle platform is more flexible, and the cost of the vehicle platform can be reduced due to the realization that one host 52 is provided with at least two split machines 51; in addition, the audio signals are transmitted by sharing the control signal transmission line, so that the diameter of the wire is reduced, and the cost is reduced.
Referring to fig. 6, fig. 6 is a schematic structural diagram of an embodiment of a computer storage medium provided in the present application, the computer storage medium 60 is used for storing a computer program 61, and the computer program 61 is used for implementing the signal transmission method in the foregoing embodiment when being executed by a processor.
The computer storage medium 60 may be a server, a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and various media capable of storing program codes.
In the several embodiments provided in the present application, it should be understood that the disclosed method and apparatus may be implemented in other manners. For example, the above-described apparatus embodiments are merely illustrative, and for example, a division of modules or units is merely a logical division, and an actual implementation may have another division, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed.
Units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The above embodiments are merely examples, and not intended to limit the scope of the present application, and all modifications, equivalents, and flow charts using the contents of the specification and drawings of the present application, or those directly or indirectly applied to other related arts, are included in the scope of the present application.
Claims (10)
1. A signal transmission system, comprising:
the split type data transmission system comprises at least two split type machines, a data transmission unit and a data transmission unit, wherein the split type machines are used for receiving at least one input signal and processing the input signal to obtain a data packet to be transmitted, each split type machine comprises a first processor and a second processor which are connected with each other, the first processors are used for sampling the input signal to obtain a sampling signal, and performing noise reduction or echo elimination processing on the sampling signal to obtain a processed sampling signal; the second processor is used for performing encapsulation processing and signal conversion processing on the processed sampling signal to obtain the data packet to be transmitted;
and the host is connected with each split machine and used for processing the data packet to be transmitted to obtain an output signal and outputting the output signal to other split machines and/or external equipment based on receiver information carried in the output signal so as to realize communication between at least two split machines or communication between the split machines and the external equipment.
2. Signal transmission system according to claim 1,
the second processor is used for performing signal conversion processing on the processed sampling signal to obtain a digital audio signal, and packaging the digital audio signal according to a preset protocol to generate the data packet to be transmitted.
3. Signal transmission system according to claim 1,
the host comprises a third processor, and the third processor is connected with the split machine and is used for monitoring, encoding and decoding the data packets to be transmitted or mixing at least two data packets to be transmitted to obtain the output signal.
4. Signal transmission system according to claim 3,
the host further comprises a transmitting circuit, wherein the transmitting circuit is connected with the third processor and is used for transmitting the signal output by the third processor to the other split machine and/or the external equipment.
5. Signal transmission system according to claim 3,
the host machine further comprises a receiving circuit, which is used for receiving the radio frequency signals sent by the other split machines and sending the radio frequency signals to the third processor; and the third processor is also used for processing the radio frequency signal to obtain a monitoring signal and sending the monitoring signal to the split machine, so that the split machine plays the monitoring signal.
6. A signal transmission method applied to the signal transmission system according to any one of claims 1 to 5, the signal transmission system including a host and at least two split machines connected to the host, the method comprising:
the split machine receives at least one input signal and processes the input signal to obtain a data packet to be transmitted, wherein the split machine comprises a first processor and a second processor which are connected with each other, the first processor samples the input signal to obtain a sampling signal, and performs noise reduction or echo elimination processing on the sampling signal to obtain a processed sampling signal; the second processor performs encapsulation processing and signal conversion processing on the processed sampling signal to obtain the data packet to be transmitted;
and the host machine processes the data packet to be transmitted to obtain an output signal, and outputs the output signal to other split machines and/or external equipment based on receiver information carried in the output signal so as to realize communication between at least two split machines or communication between the split machines and the external equipment.
7. The signal transmission method according to claim 6, wherein the step of performing encapsulation processing and signal conversion processing on the processed sampling signal to obtain the data packet to be transmitted includes:
and performing signal conversion processing on the processed sampling signal to obtain a digital audio signal, and packaging the digital signal according to a preset protocol to generate the data packet to be transmitted.
8. The signal transmission method according to claim 7, wherein the step of processing the data packet to be transmitted to obtain an output signal, and outputting the output signal to another split device and/or an external device based on receiver information carried in the output signal includes:
receiving radio frequency signals sent by other split machines, and processing the radio frequency signals to obtain monitoring signals;
and sending the monitoring signal to the split machine so that the split machine plays the monitoring signal.
9. The signal transmission method according to claim 6, wherein the step of processing the data packet to be transmitted to obtain an output signal comprises:
and monitoring, encoding and decoding the data packets to be transmitted or mixing at least two data packets to be transmitted to obtain the output signal.
10. A computer storage medium storing a computer program, characterized in that the computer program, when being executed by a processor, is adapted to carry out the signal transmission method of any one of claims 6-9.
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