CN114389763A - Double-link simultaneous interpretation system based on optical path wireless and electromagnetic wave wireless - Google Patents
Double-link simultaneous interpretation system based on optical path wireless and electromagnetic wave wireless Download PDFInfo
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Abstract
The invention provides a double-link simultaneous interpretation system based on optical path wireless and electromagnetic wave wireless, and relates to the technical field of simultaneous interpretation. The invention selects a double-path transmitting front end which can transmit double-path carrier signals, and transmits the double-path carrier signals; the double-path receiving back end receives the double-path carrier signals in real time, and the double-path communication can not influence the normal operation of different acoustic interpretation when a single link fails, and can improve the quality and stability of communication and operate well in different occasions; the invention divides the two-way simultaneous transmission signal into frames through the data frame dividing module, obtains the frame dividing mark sequence through the frame dividing mark module, and injects each path of frame into the buffer memory in real time, when switching, the next frame to be played can be searched, and the channel switching can be completed without influencing the existing communication through switching the next frame, and the invention has no delay and no loss.
Description
Technical Field
The invention relates to the technical field of simultaneous interpretation, in particular to a double-link simultaneous interpretation system based on optical path wireless and electromagnetic wave wireless.
Background
Simultaneous interpretation is simultaneous interpretation, which is a kind of oral interpretation mode that an interpreter continuously interprets the speech content to audience without interrupting the speech of a speaker.
The biggest advantage of simultaneous interpretation is high efficiency, can ensure that the speech is continuously spoken, does not influence or interrupt the thinking of a speaker, is beneficial to the audience to understand the whole speech, and continuously plays a key role in each important conference as a new system in the technical field of audio conferences.
With the development of science and technology, our simultaneous interpretation technology is continuously updated, and the existing dual-link simultaneous interpretation system can receive simultaneous interpretation signals of different interpretation channels and distribute the simultaneous interpretation signals to people with different language listening requirements for listening. However, the present co-transmission interpretation back end usually only provides a single-mode signal reception, and when a single-channel signal receives interference, for example, infrared signals have the problem of shielding and other light wave interference, electromagnetic wave signals have the problem of possible instability of signals, and the problem of interference. And the simultaneous interpretation quality is directly influenced by the obstruction of the single-path signal.
For this reason, the publication numbers are: CN110677406A provides a simultaneous interpretation method and system based on network, the system includes a site server, a cloud server, an interpreter terminal and a user terminal; the on-site server is connected with the on-site sound console in a one-way mode, and a voice input signal is accessed from the on-site sound console; the site server is connected with the translator end in a bidirectional way through a wireless local area network; the site server is connected with the user side in a two-way mode through the wireless local area network; the field server is connected with the cloud server in a two-way mode through the Internet. The method comprises the following steps: the on-site server receives a voice input signal from the on-site sound console, preprocesses the received voice input signal, processes multilingual audio and multilingual words aiming at the preprocessed original voice audio signal, and transmits the processed multilingual audio and multilingual word data to a user side; the user end plays and displays the received multilingual audio and multilingual words, responds to the language switching command of the user in real time, and plays and displays the voice and words of the language selected by the user.
The application is based on the network, and compared with the existing infrared interpretation network, the remote transmission can be realized, but the pressure of a network channel is high, and the application has no advantages in short-distance simultaneous interpretation and multi-node.
In addition, the application cannot solve the problem that the conversation is temporarily interrupted when the double-link data of the double-path simultaneous transmission system is switched, the continuity of the simultaneous transmission data cannot be ensured, and in addition, the application does not consider the function of automatically/manually switching the channel when the single signal quality is poor.
Therefore, there is a need to provide a new method for processing dual-link data handover for a dual-link simultaneous interpretation system to solve the above technical problem.
Disclosure of Invention
In order to solve one of the above technical problems, the present invention provides a dual-link simultaneous interpretation system based on optical path wireless and electromagnetic wave wireless, which includes a dual-path transmitting front end for transmitting a dual-path carrier signal and a dual-path receiving back end for receiving the dual-path carrier signal.
Specifically, the two-way transmitting front end comprises a plurality of interpreters, a simultaneous interpretation host, a multi-channel decoder and a two-way transmitting host; the plurality of interpreters are respectively electrically connected with the simultaneous interpretation host, and the simultaneous interpretation host is electrically connected with the multi-channel decoder; the translator is used for collecting the voice translated by each simultaneous translator and converting the voice into an input electric signal; the simultaneous interpretation host is responsible for receiving input electric signals sent by each interpreter and obtaining a plurality of paths of simultaneous interpretation signals; the multi-channel decoder is used for carrying out multi-channel simultaneous sound decoding on the multi-channel simultaneous sound translation signals to obtain multi-channel simultaneous sound data; the dual-channel emission host is used for carrying out dual-channel data synchronous coding and synchronous emission on the multi-channel simultaneous acoustic data and comprises an optical path emission link and an electromagnetic wave emission link, wherein the optical path emission link is used for generating an optical path carrier signal, and the electromagnetic wave emission link is used for generating an electromagnetic carrier signal.
More specifically, the two-way receiving rear end comprises an optical path receiving module, an electromagnetic wave receiving module, a processing unit, an encoding and decoding processing module, a link switching unit and a power supply unit; the encoding and decoding processing module is a double-path encoding and decoding processing module and is respectively connected with the optical path receiving module and the electromagnetic wave receiving module to form an optical carrier data link and an electromagnetic carrier data link, and the encoding and decoding processing module is electrically connected with the processing unit; the link switching unit and the power supply unit are electrically connected with the processing unit; the processing unit comprises a processor and a buffer, the processor is electrically connected with the buffer, and the buffer comprises an optical path buffer and an electromagnetic buffer.
As a further solution, the optical carrier data link and the electromagnetic carrier data link respectively acquire and decode the optical path carrier signal and the electromagnetic carrier signal to obtain two paths of simultaneous transmission signals; the buffer is used for providing a data buffer space for the processor, the processor is used for carrying out data processing on the two-way simultaneous transmission signal to obtain an output optical path digital signal and an electromagnetic wave digital signal, and the link switching unit is used for carrying out single signal output switching on the optical path digital signal and the electromagnetic wave digital signal.
As a further solution, the optical path transmitting link includes a multi-path optical coding module for receiving multi-path simultaneous acoustic data and performing optical communication coding, an optical path carrier generating module for generating an optical path carrier, an optical path carrier modulating module for modulating the multi-path optical coding and the optical path carrier, and an optical path generator for generating communication light; the optical path carrier modulation module is electrically connected with the optical path carrier generation module and the optical path carrier modulation module respectively, and the optical path generator is electrically connected with the optical path carrier modulation module.
Furthermore, the electromagnetic wave transmitting link comprises a multi-path electromagnetic wave coding module, an electromagnetic carrier generating module, an electromagnetic carrier modulating module and an electromagnetic wave generator; the electromagnetic carrier modulation module is electrically connected with the multi-path electromagnetic wave coding module and the electromagnetic carrier generation module respectively, and the electromagnetic wave generator is electrically connected with the electromagnetic carrier modulation module.
As a further solution, the two-way receiving rear end is further provided with a light path frequency selection module and an electromagnetic wave frequency selection module, and the light path frequency selection module is electrically connected with the light path receiving module; the electromagnetic wave frequency selection module is electrically connected with the electromagnetic wave receiving module.
As a further solution, the two-way transmitting front-end and the two-way receiving back-end perform simultaneous interpretation by:
two-way transmission front end:
a1 each simultaneous translator carries out simultaneous translation, and the translated voice is converted into an input electric signal through a translator;
a2, each interpreter sends the input electric signal to the simultaneous interpretation host, and multi-channel sampling is carried out to obtain a plurality of paths of simultaneous interpretation signals;
a3, sending the multi-channel simultaneous interpretation signals to a multi-channel decoder, and performing multi-channel simultaneous decoding to obtain multi-channel simultaneous data;
a4 sending the multi-channel simultaneous acoustic data to a two-way emission host, and carrying out two-way carrier modulation to obtain an optical path carrier signal and an electromagnetic carrier signal;
a5 transmitting the optical path carrier signal and the electromagnetic carrier signal through an optical path generator and an electromagnetic wave generator respectively;
a6 repeating the steps A1 to A5 until the simultaneous interpretation is finished;
two-way receiving back end:
b1 processor reads the frequency selection frequency of the optical path frequency selection module and the electromagnetic wave frequency selection module, processor reads the selection link of the link switching unit;
b2 receiving the optical path carrier signal and the electromagnetic carrier signal transmitted by the two-way transmitting front end through the optical path receiving module and the electromagnetic wave receiving module, and selecting the frequency signal through the frequency selecting frequency to obtain two-way simultaneous transmission signals;
b3, processing data of the two-way simultaneous transmission signal by a processor to obtain an output optical path digital signal and an electromagnetic wave digital signal;
b4, the output optical path digital signal and the electromagnetic wave digital signal are output and selected through a selection link arranged by a link switching unit, and single signal output is obtained;
b5 repeats the steps B1-B4 until the simultaneous interpretation is finished.
As a further solution, the buffer is a ring buffer; the processor is a micro MCU processor, the two-way simultaneous transmission signals comprise an optical path input signal and an electromagnetic wave input signal, the optical path input signal and the electromagnetic wave input signal use a uniform time axis, and the link switching unit is a dual-mode switch.
Specifically, a data framing module is arranged in the two-way transmitting host; the data framing module is used for framing the input signal according to a preset frame length, the preset frame length takes a time axis as a reference, and the input signal is cut to obtain a plurality of framing segments;
more specifically, a framing marking module is arranged in the two-way transmitting host; the framing mark module generates framing marks according to a time axis, and marks the framing marks corresponding to the time axis for the framing clips respectively.
As a further solution, a communication data synchronous switching module is disposed in the processor, and the communication data synchronous switching module implements communication data synchronous switching by:
s1, collecting two-way simultaneous transmission signals through the optical path receiving module and the electromagnetic wave receiving module;
s2 unpacking the two-way simultaneous transmission signal and extracting a framing data sequence, wherein the framing data sequence comprises an optical path framing segment and an electromagnetic wave framing segment;
s3 unpacking the two-way simultaneous transmission signal and extracting a framing marker sequence;
s4, injecting the light path framing segment and the electromagnetic wave framing segment into an annular buffer in real time;
the S5 processing unit outputs the optical path digital signal/electromagnetic wave digital signal according to the current selection link of the dual-mode selector switch to obtain the current output digital signal, and the digital signal which is not output is used as the switching output digital signal;
s6, when the processor detects that the dual-mode switch is switched, recording the current framing mark and the next framing mark;
s7, finding the optical path framing segment and the electromagnetic wave framing segment corresponding to the current framing mark and the next framing mark in the annular buffer;
s8, splicing the switching output digital signal corresponding to the next framing mark with the current framing mark of the current output digital signal to obtain a communication data synchronous switching digital signal;
s9 outputs the communication data synchronous switching digital signal as the current output digital signal, thereby completing the communication data synchronous switching.
As a further solution, a link indicator light is further provided, the link indicator light comprises an optical link indicator light and an electromagnetic wave link indicator light, and the optical link indicator light and the electromagnetic wave link indicator light are respectively electrically connected with the processing unit.
As a further solution, a CODEC coder-decoder is also provided, the CODEC coder-decoder is electrically connected with the processing unit and is used for converting the single signal output of the processing unit into an analog signal output, and the analog signal output can be directly played through a loudspeaker.
As a further solution, the optical path transmitting link is an infrared transmitting link, and infrared light is selected as a transceiving carrier, the electromagnetic wave transmitting link is a WIFI transmitting link, and a WIFI signal with a frequency of 2.4GHz or 5GHz is selected as a transceiving carrier; the optical path receiving module is an infrared receiving module, and the electromagnetic wave receiving module is a WIFI receiving module.
Compared with the related technology, the double-link simultaneous interpretation system based on optical path wireless and electromagnetic wave wireless provided by the invention has the following beneficial effects:
1. the invention selects the transmitting front end which can transmit the double-path carrier signal, and transmits the double-path carrier signal; the double-path receiving back end receives the double-path carrier signals in real time, and the double-path communication can not influence the normal operation of different acoustic interpretation when a single link fails, and can improve the quality and stability of communication and operate well in different occasions;
2. the invention is also provided with a light path frequency selection module and an electromagnetic wave frequency selection module, which can achieve the effect of selecting translation languages through selecting frequency signals; the analog signal output obtained by the processing of the CODEC can be directly played through a loudspeaker;
3. the invention divides the two-way simultaneous transmission signal into frames through the data frame dividing module, obtains the frame dividing mark sequence through the frame dividing mark module, and injects each path of frame into the buffer memory in real time, when switching, the next frame to be played can be searched, and the channel switching can be completed without influencing the existing communication by switching the next frame, and no delay and no loss exist;
4. the infrared signal and the WIFI signal are used as the double-path carrier wave, so that the device can adapt to various scenes such as long-distance communication, short-range communication, limited environment communication, open environment communication and the like, the applicable scene of the device is greatly enhanced, and the communication quality is also greatly improved.
Drawings
Fig. 1 is a schematic diagram of a preferred system of a dual-link simultaneous interpretation system based on optical path wireless and electromagnetic wave wireless according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a preferred system for a multi-channel transmitter host according to an embodiment of the present invention;
fig. 3 is a first schematic diagram of a two-way handover process according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a two-way switching process according to an embodiment of the present invention.
Detailed Description
The invention is further described with reference to the following figures and embodiments.
As shown in fig. 1 to fig. 4, the present embodiment provides a dual-link simultaneous interpretation system based on optical path wireless and electromagnetic wave wireless, which includes a dual-path transmitting front end for transmitting a dual-path carrier signal and a dual-path receiving back end for receiving a dual-path carrier signal.
It should be noted that: the traditional simultaneous interpretation back end only provides signal receiving in a single mode, and the signal transmitting unit only transmits single-channel signals; when a single-path signal is interfered, for example, an infrared signal has the problems of shielding and other light wave interference, an electromagnetic wave signal has the problems of possible instability of the signal, and interference. And the simultaneous interpretation quality is directly influenced by the obstruction of the single-path signal. Therefore, the embodiment selects the two-way transmitting front end capable of transmitting the two-way carrier signal and transmits the two-way carrier signal; and the double-path receiving rear end receives the double-path carrier signals in real time, and the double-path communication can not influence the normal operation of different acoustic interpretation when a single link fails, and can improve the quality and stability of communication and operate well in different occasions.
Specifically, the two-way transmitting front end comprises a plurality of interpreters, a simultaneous interpretation host, a multi-channel decoder and a two-way transmitting host; the plurality of interpreters are respectively electrically connected with the simultaneous interpretation host, and the simultaneous interpretation host is electrically connected with the multi-channel decoder; the translator is used for collecting the voice translated by each simultaneous translator and converting the voice into an input electric signal; the simultaneous interpretation host is responsible for receiving input electric signals sent by each interpreter and obtaining a plurality of paths of simultaneous interpretation signals; the multi-channel decoder is used for carrying out multi-channel simultaneous sound decoding on the multi-channel simultaneous sound translation signals to obtain multi-channel simultaneous sound data; the dual-channel emission host is used for carrying out dual-channel data synchronous coding and synchronous emission on the multi-channel simultaneous acoustic data and comprises an optical path emission link and an electromagnetic wave emission link, wherein the optical path emission link is used for generating an optical path carrier signal, and the electromagnetic wave emission link is used for generating an electromagnetic carrier signal.
When needing to be explained: the simultaneous interpretation host can be used for collecting and transmitting the electric signals collected by the interpreters through the simultaneous interpretation host, and collecting and uploading the multi-channel electric signals to a multi-channel decoder; the multi-channel decoder can independently decode each signal of the multi-channel simultaneous translation signals, and the multi-channel decoder can use a multi-channel audio codec with the model of WM 8595.
More specifically, the two-way receiving rear end comprises an optical path receiving module, an electromagnetic wave receiving module, a processing unit, an encoding and decoding processing module, a link switching unit and a power supply unit; the encoding and decoding processing module is a double-path encoding and decoding processing module and is respectively connected with the optical path receiving module and the electromagnetic wave receiving module to form an optical carrier data link and an electromagnetic carrier data link, and the encoding and decoding processing module is electrically connected with the processing unit; the link switching unit and the power supply unit are electrically connected with the processing unit; the processing unit comprises a processor and a buffer, the processor is electrically connected with the buffer, and the buffer comprises an optical path buffer and an electromagnetic buffer.
It should be noted that: the optical path receiving module can be set by adopting a BRM-15S8 infrared receiving head, and the electromagnetic wave receiving module can be a WIFI receiving module with the model of CC113 LRGPR; the processing unit adopts an MCU processing unit; the coding and decoding processing module can be a soft decoding module and realized through a processing unit, and can also be externally connected with a separate decoding chip, and the link switching unit can be set by using a rocker switch; the power supply module uses an existing 5v or 12v direct current power supply unit.
As a further solution, the optical carrier data link and the electromagnetic carrier data link respectively acquire and decode the optical path carrier signal and the electromagnetic carrier signal to obtain two paths of simultaneous transmission signals; the buffer is used for providing a data buffer space for the processor, the processor is used for carrying out data processing on the two-way simultaneous transmission signal to obtain an output optical path digital signal and an electromagnetic wave digital signal, and the link switching unit is used for carrying out single signal output switching on the optical path digital signal and the electromagnetic wave digital signal.
As a further solution, the optical path transmitting link includes a multi-path optical coding module for receiving multi-path simultaneous acoustic data and performing optical communication coding, an optical path carrier generating module for generating an optical path carrier, an optical path carrier modulating module for modulating the multi-path optical coding and the optical path carrier, and an optical path generator for generating communication light; the optical path carrier modulation module is electrically connected with the optical path carrier generation module and the optical path carrier modulation module respectively, and the optical path generator is electrically connected with the optical path carrier modulation module.
Furthermore, the electromagnetic wave transmitting link comprises a multi-path electromagnetic wave coding module, an electromagnetic carrier generating module, an electromagnetic carrier modulating module and an electromagnetic wave generator; the electromagnetic carrier modulation module is electrically connected with the multi-path electromagnetic wave coding module and the electromagnetic carrier generation module respectively, and the electromagnetic wave generator is electrically connected with the electromagnetic carrier modulation module.
It should be noted that: as shown in fig. 2, the optical path generator may be set by an infrared pulse laser tube SPL PL90-3 laser diode, the electromagnetic carrier modulation module and the optical path carrier modulation module may both be modulated by an and circuit, the electromagnetic wave generator may be set by a 2.4G/5.0G wireless module, and the multi-path optical coding module may use an infrared encoder/decoder of MCP 2120; the electromagnetic wave coding module can use a built-in wireless network protocol IEEE802.11b.g.n protocol stack and a WIFI coding module of a TCP/IP protocol stack. The carrier generation circuits may employ existing SPWM wave generators, for example.
As a further solution, the two-way receiving rear end is further provided with a light path frequency selection module and an electromagnetic wave frequency selection module, and the light path frequency selection module is electrically connected with the light path receiving module; the electromagnetic wave frequency selection module is electrically connected with the electromagnetic wave receiving module.
As a further solution, the two-way transmitting front-end and the two-way receiving back-end perform simultaneous interpretation by:
two-way transmission front end:
a1 each simultaneous translator carries out simultaneous translation, and the translated voice is converted into an input electric signal through a translator;
a2, each interpreter sends the input electric signal to the simultaneous interpretation host, and multi-channel sampling is carried out to obtain a plurality of paths of simultaneous interpretation signals;
a3, sending the multi-channel simultaneous interpretation signals to a multi-channel decoder, and performing multi-channel simultaneous decoding to obtain multi-channel simultaneous data;
a4 sending the multi-channel simultaneous acoustic data to a two-way emission host, and carrying out two-way carrier modulation to obtain an optical path carrier signal and an electromagnetic carrier signal;
a5 transmitting the optical path carrier signal and the electromagnetic carrier signal through an optical path generator and an electromagnetic wave generator respectively;
a6 repeating the steps A1 to A5 until the simultaneous interpretation is finished;
two-way receiving back end:
b1 processor reads the frequency selection frequency of the optical path frequency selection module and the electromagnetic wave frequency selection module, processor reads the selection link of the link switching unit;
b2 receiving the optical path carrier signal and the electromagnetic carrier signal transmitted by the two-way transmitting front end through the optical path receiving module and the electromagnetic wave receiving module, and selecting the frequency signal through the frequency selecting frequency to obtain two-way simultaneous transmission signals;
b3, processing data of the two-way simultaneous transmission signal by a processor to obtain an output optical path digital signal and an electromagnetic wave digital signal;
b4, the output optical path digital signal and the electromagnetic wave digital signal are output and selected through a selection link arranged by a link switching unit, and single signal output is obtained;
b5 repeats the steps B1-B4 until the simultaneous interpretation is finished.
It should be noted that: as shown in fig. 1, the frequency signal is selected by the frequency selection frequency to achieve the effect of selecting the translation language.
As a further solution, the buffer is a ring buffer; the processor is a micro MCU processor, the two-way simultaneous transmission signals comprise an optical path input signal and an electromagnetic wave input signal, the optical path input signal and the electromagnetic wave input signal use a uniform time axis, and the link switching unit is a dual-mode switch.
Specifically, a data framing module is arranged in the two-way transmitting host; the data framing module is used for framing the input signal according to a preset frame length, the preset frame length takes a time axis as a reference, and the input signal is cut to obtain a plurality of framing segments;
more specifically, a framing marking module is arranged in the two-way transmitting host; the framing mark module generates framing marks according to a time axis, and marks the framing marks corresponding to the time axis for the framing clips respectively.
What needs to be supplemented is: the two-way simultaneous transmission signals received by the embodiment are from a two-way transmitting front end, and the two-way transmitting front end packs transmitting data and then carries out remote transmission through two-way carrier waves; unpacking the digital synchronous transmission system by the digital synchronous transmission system; and obtaining various items of data in the data packet, wherein the data packet comprises a framing data sequence and a framing mark sequence, the framing data sequence from the electromagnetic wave link is composed of electromagnetic wave framing segments, and the framing data sequence from the optical wave link is composed of optical path framing segments.
As a further solution, a communication data synchronous switching module is disposed in the processor, and the communication data synchronous switching module implements communication data synchronous switching by:
s1, collecting two-way simultaneous transmission signals through the optical path receiving module and the electromagnetic wave receiving module;
s2 unpacking the two-way simultaneous transmission signal and extracting a framing data sequence, wherein the framing data sequence comprises an optical path framing segment and an electromagnetic wave framing segment;
s3 unpacking the two-way simultaneous transmission signal and extracting a framing marker sequence;
s4, injecting the light path framing segment and the electromagnetic wave framing segment into an annular buffer in real time;
the S5 processing unit outputs the optical path digital signal/electromagnetic wave digital signal according to the current selection link of the dual-mode selector switch to obtain the current output digital signal, and the digital signal which is not output is used as the switching output digital signal;
s6, when the processor detects that the dual-mode switch is switched, recording the current framing mark and the next framing mark;
s7, finding the optical path framing segment and the electromagnetic wave framing segment corresponding to the current framing mark and the next framing mark in the annular buffer;
s8, splicing the switching output digital signal corresponding to the next framing mark with the current framing mark of the current output digital signal to obtain a communication data synchronous switching digital signal;
s9 outputs the communication data synchronous switching digital signal as the current output digital signal, thereby completing the communication data synchronous switching.
It should be noted that: the reason why the conventional system generally has the situations of short communication loss, interruption and flashover during signal switching is that when the conventional bi-pass system switches channels, the time sequences of the channels cannot be synchronized due to different decoding rates, transmission rates and carrier characteristics of the channels, one channel of signal is always too fast or too slow, and when the switched channel is slower than the current channel, the situation that information corresponding to the time sequence is lost occurs; when the switching channel is faster than the current channel, the situation of information flashover corresponding to the time sequence can occur; when the timing difference of each channel is too large, the signals cannot be switched, thereby causing communication interruption.
The embodiment provides a switching processing step for a dual-link simultaneous interpretation system to solve the problems of short communication loss, interruption, flash and the like during dual-channel switching. In addition, the buffer is added, so that the simultaneous transmission of the numbers is more smooth. The manual switching mode can meet specific communication requirements, provides a free selection right of channels for a user, and enables the device to have higher practicability.
As a further solution, a link indicator light is further provided, the link indicator light comprises an optical link indicator light and an electromagnetic wave link indicator light, and the optical link indicator light and the electromagnetic wave link indicator light are respectively electrically connected with the processing unit.
As a further solution, a CODEC coder-decoder is also provided, the CODEC coder-decoder is electrically connected with the processing unit and is used for converting the single signal output of the processing unit into an analog signal output, and the analog signal output can be directly played through a loudspeaker.
As a further solution, the optical path transmitting link is an infrared transmitting link, and infrared light is selected as a transceiving carrier, the electromagnetic wave transmitting link is a WIFI transmitting link, and a WIFI signal with a frequency of 2.4GHz or 5GHz is selected as a transceiving carrier; the optical path receiving module is an infrared receiving module, and the electromagnetic wave receiving module is a WIFI receiving module.
When needing to be explained: the infrared signal and the WIFI signal are used as double-path carrier waves, so that the device can adapt to a plurality of scenes such as remote communication, short-range communication, limited environment communication, open environment communication and the like, the applicable scene of the device is greatly enhanced, and the communication quality is also greatly improved.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A double-link simultaneous interpretation system based on optical path wireless and electromagnetic wave wireless is characterized by comprising a double-path transmitting front end used for transmitting double-path carrier signals and a double-path receiving rear end used for receiving the double-path carrier signals;
the two-way transmitting front end comprises a plurality of interpreters, a simultaneous interpretation host, a multi-channel decoder and a two-way transmitting host; the plurality of interpreters are respectively electrically connected with the simultaneous interpretation host, and the simultaneous interpretation host is electrically connected with the multi-channel decoder; the translator is used for collecting the voice translated by each simultaneous translator and converting the voice into an input electric signal; the simultaneous interpretation host is responsible for receiving input electric signals sent by each interpreter and obtaining a plurality of paths of simultaneous interpretation signals; the multi-channel decoder is used for carrying out multi-channel simultaneous sound decoding on the multi-channel simultaneous sound translation signals to obtain multi-channel simultaneous sound data; the dual-channel emission host is used for performing dual-channel data synchronous coding and synchronous emission on multi-channel simultaneous acoustic data and comprises an optical path emission link and an electromagnetic wave emission link, wherein the optical path emission link is used for generating an optical path carrier signal, and the electromagnetic wave emission link is used for generating an electromagnetic carrier signal;
the double-path receiving rear end comprises an optical path receiving module, an electromagnetic wave receiving module, a processing unit, an encoding and decoding processing module, a link switching unit and a power supply unit; the encoding and decoding processing module is a double-path encoding and decoding processing module and is respectively connected with the optical path receiving module and the electromagnetic wave receiving module to form an optical carrier data link and an electromagnetic carrier data link, and the encoding and decoding processing module is electrically connected with the processing unit; the link switching unit and the power supply unit are electrically connected with the processing unit; the processing unit comprises a processor and a buffer, the processor is electrically connected with the buffer, and the buffer comprises an optical path buffer and an electromagnetic buffer.
2. The dual-link simultaneous interpretation system based on optical path wireless and electromagnetic wave wireless as claimed in claim 1, wherein the optical carrier data link and the electromagnetic carrier data link respectively collect and decode the optical path carrier signal and the electromagnetic carrier signal to obtain a dual-path simultaneous interpretation signal; the buffer is used for providing a data buffer space for the processor, the processor is used for carrying out data processing on the two-way simultaneous transmission signal to obtain an output optical path digital signal and an electromagnetic wave digital signal, and the link switching unit is used for carrying out single signal output switching on the optical path digital signal and the electromagnetic wave digital signal.
3. The dual-link simultaneous interpretation system based on optical path wireless and electromagnetic wave wireless as claimed in claim 2, wherein the optical path transmitting link comprises a multi-path optical coding module for receiving multi-path simultaneous interpretation data and performing optical communication coding, an optical path carrier generating module for generating an optical path carrier, an optical path carrier modulating module for modulating the multi-path optical coding and the optical path carrier, and an optical path generator for generating communication light; the optical path carrier modulation module is electrically connected with the optical path carrier generation module and the optical path carrier modulation module respectively, and the optical path generator is electrically connected with the optical path carrier modulation module;
the electromagnetic wave transmitting link comprises a multi-path electromagnetic wave coding module, an electromagnetic carrier generating module, an electromagnetic carrier modulating module and an electromagnetic wave generator; the electromagnetic carrier modulation module is electrically connected with the multi-path electromagnetic wave coding module and the electromagnetic carrier generation module respectively, and the electromagnetic wave generator is electrically connected with the electromagnetic carrier modulation module.
4. The dual-link simultaneous interpretation system based on optical path wireless and electromagnetic wave wireless as claimed in claim 3, wherein the dual-path receiving back end is further provided with an optical path frequency selection module and an electromagnetic wave frequency selection module, and the optical path frequency selection module is electrically connected with the optical path receiving module; the electromagnetic wave frequency selection module is electrically connected with the electromagnetic wave receiving module.
5. The system according to claim 4, wherein the two-way transmitting front end and the two-way receiving back end perform simultaneous interpretation by the following steps:
two-way transmission front end:
a1 each simultaneous translator carries out simultaneous translation, and the translated voice is converted into an input electric signal through a translator;
a2, each interpreter sends the input electric signal to the simultaneous interpretation host, and multi-channel sampling is carried out to obtain a plurality of paths of simultaneous interpretation signals;
a3, sending the multi-channel simultaneous interpretation signals to a multi-channel decoder, and performing multi-channel simultaneous decoding to obtain multi-channel simultaneous data;
a4 sending the multi-channel simultaneous acoustic data to a two-way emission host, and carrying out two-way carrier modulation to obtain an optical path carrier signal and an electromagnetic carrier signal;
a5 transmitting the optical path carrier signal and the electromagnetic carrier signal through an optical path generator and an electromagnetic wave generator respectively;
a6 repeating the steps A1 to A5 until the simultaneous interpretation is finished;
two-way receiving back end:
b1 processor reads the frequency selection frequency of the optical path frequency selection module and the electromagnetic wave frequency selection module, processor reads the selection link of the link switching unit;
b2 receiving the optical path carrier signal and the electromagnetic carrier signal transmitted by the two-way transmitting front end through the optical path receiving module and the electromagnetic wave receiving module, and selecting the frequency signal through the frequency selecting frequency to obtain two-way simultaneous transmission signals;
b3, processing data of the two-way simultaneous transmission signal by a processor to obtain an output optical path digital signal and an electromagnetic wave digital signal;
b4, the output optical path digital signal and the electromagnetic wave digital signal are output and selected through a selection link arranged by a link switching unit, and single signal output is obtained;
b5 repeats the steps B1-B4 until the simultaneous interpretation is finished.
6. The system according to claim 5, wherein the buffer is a ring buffer; the processor is a micro MCU processor, the two-way simultaneous transmission signals comprise an optical path input signal and an electromagnetic wave input signal, the optical path input signal and the electromagnetic wave input signal use a uniform time axis, and the link switching unit is a dual-mode switch;
the double-path transmitting host is internally provided with a data framing module; the data framing module is used for framing the input signal according to a preset frame length, the preset frame length takes a time axis as a reference, and the input signal is cut to obtain a plurality of framing segments;
a framing marking module is arranged in the two-way transmitting host; the framing mark module generates framing marks according to a time axis, and marks the framing marks corresponding to the time axis for the framing clips respectively.
7. The dual-link simultaneous interpretation system based on optical path wireless and electromagnetic wave wireless as claimed in claim 6, wherein the processor is provided with a communication data synchronous switching module, and the communication data synchronous switching module implements synchronous switching of communication data by:
s1, collecting two-way simultaneous transmission signals through the optical path receiving module and the electromagnetic wave receiving module;
s2 unpacking the two-way simultaneous transmission signal and extracting a framing data sequence, wherein the framing data sequence comprises an optical path framing segment and an electromagnetic wave framing segment;
s3 unpacking the two-way simultaneous transmission signal and extracting a framing marker sequence;
s4, injecting the light path framing segment and the electromagnetic wave framing segment into an annular buffer in real time;
the S5 processing unit outputs the optical path digital signal/electromagnetic wave digital signal according to the current selection link of the dual-mode selector switch to obtain the current output digital signal, and the digital signal which is not output is used as the switching output digital signal;
s6, when the processor detects that the dual-mode switch is switched, recording the current framing mark and the next framing mark;
s7, finding the optical path framing segment and the electromagnetic wave framing segment corresponding to the current framing mark and the next framing mark in the annular buffer;
s8, splicing the switching output digital signal corresponding to the next framing mark with the current framing mark of the current output digital signal to obtain a communication data synchronous switching digital signal;
s9 outputs the communication data synchronous switching digital signal as the current output digital signal, thereby completing the communication data synchronous switching.
8. The dual-link simultaneous interpretation system based on optical path wireless and electromagnetic wave wireless as claimed in claim 7, further comprising link indicating lamps, wherein the link indicating lamps comprise an optical link indicating lamp and an electromagnetic wave link indicating lamp, and the optical link indicating lamp and the electromagnetic wave link indicating lamp are respectively electrically connected with the processing unit.
9. The dual-link simultaneous interpretation system based on optical path wireless and electromagnetic wave wireless as claimed in claim 8, further comprising a CODEC electrically connected to the processing unit and configured to convert the single signal output of the processing unit into an analog signal output, and the analog signal output can be directly played through a speaker.
10. The dual-link simultaneous interpretation system based on optical path wireless and electromagnetic wave wireless as claimed in claim 9, wherein the optical path transmitting link is an infrared transmitting link and selects infrared light as a transceiving carrier, the electromagnetic wave transmitting link is a WIFI transmitting link and selects a WIFI signal with a frequency of 2.4GHz or 5GHz as a transceiving carrier; the optical path receiving module is an infrared receiving module, and the electromagnetic wave receiving module is a WIFI receiving module.
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