A dual-link simultaneous interpretation system based on optical wireless and electromagnetic wave wireless

Abstract

The present invention provides a dual-link simultaneous interpretation system based on optical wireless and electromagnetic wave wireless, and relates to the technical field of simultaneous interpretation. The present invention selects a dual-path transmitting front end capable of transmitting dual-path carrier signals, and transmits dual-path carrier signals; and receives the dual-path carrier signals in real time through a dual-path receiving back end. Through the dual-link setting, when a single link fails, the normal simultaneous interpretation is not affected. In addition, the dual-link communication can also improve the quality and stability of communication, and can operate well in different occasions; the present invention frames the dual-path simultaneous interpretation signal through a data framing module, obtains a framing mark sequence through a framing mark module, and injects each framing into a buffer in real time. When switching, the next framing to be played can be found, and by switching the next framing, the channel switching can be completed without affecting the existing communication, and there is no delay or loss.

Description

Technical Field

[0001] The invention relates to the technical field of simultaneous interpretation, and in particular to a dual-link simultaneous interpretation system based on optical path wireless and electromagnetic wave wireless. Background Art

[0002] Simultaneous interpretation is a type of interpretation in which the interpreter continuously translates the speaker's speech to the audience without interrupting the speaker.

[0003] The biggest advantage of simultaneous interpretation is its high efficiency. It can ensure the coherence of speeches without affecting or interrupting the speaker's train of thought, which is conducive to the audience's understanding of the entire speech. As an emerging system in the field of audio conferencing technology, it continues to play a key role in various important meetings.

[0004] With the development of science and technology, our simultaneous interpretation technology is also constantly updated. The existing dual-link simultaneous interpretation system can receive simultaneous interpretation signals from different interpretation channels and distribute them to people with different language listening needs. However, the simultaneous interpretation backend often only provides a single signal reception method. When a single-channel signal is interfered with, such as infrared signals being blocked and other light wave interference problems, electromagnetic wave signals being unstable, and interference problems. The obstruction of a single-channel signal will directly affect the quality of simultaneous interpretation.

[0005] To this end, the publication number: CN110677406A provides a network-based simultaneous interpretation method and system, the system includes a field server, a cloud server, an interpreter terminal, and a user terminal; the field server is unidirectionally connected to the field mixer, and the voice input signal is received from the field mixer; the field server is bidirectionally connected to the interpreter terminal through a wireless local area network; the field server is bidirectionally connected to the user terminal through a wireless local area network; the field server is bidirectionally connected to the cloud server through the Internet. The method includes: the field server receives the voice input signal from the field mixer, pre-processes the received voice input signal, performs multi-language audio and multi-language text processing on the pre-processed original audio signal, and transmits the processed multi-language audio and multi-language text data to the user terminal; the user terminal plays and displays the received multi-language audio and multi-language text, and responds to the user's language switching command in real time, and plays and displays the voice and text of the language selected by the user.

[0006] This application is based on the Internet and can achieve long-distance transmission compared to the existing infrared interpretation network. However, its network channel is under great pressure and does not have advantages in close-range simultaneous interpretation and multiple nodes.

[0007] In addition, the application cannot solve the problem of brief call interruption when the dual-link data of the dual-channel simultaneous interpretation system is switched, and cannot guarantee the continuity of the simultaneous interpretation data. In addition, the application has not considered the function of automatic / manual channel switching when the quality of a single signal is poor.

[0008] Therefore, it is necessary to provide a new dual-link data switching processing method for a dual-link simultaneous interpretation system to solve the above technical problems. Summary of the invention

[0009] To solve one of the above technical problems, the present invention provides a dual-link simultaneous interpretation system based on optical wireless and electromagnetic wave wireless, including a dual-path transmitting front end for transmitting dual-path carrier signals and a dual-path receiving back end for receiving dual-path carrier signals.

[0010] Specifically, the dual-channel transmission front end includes a plurality of interpreters, a simultaneous interpretation host, a multi-channel decoder and a dual-channel transmission host; the plurality of interpreters are electrically connected to the simultaneous interpretation host respectively, and the simultaneous interpretation host is electrically connected to the multi-channel decoder; wherein the interpreters are responsible for collecting the voices translated by each simultaneous interpreter and converting them into input electrical signals; the simultaneous interpretation host is responsible for receiving the input electrical signals sent by each interpreter and obtaining multi-channel simultaneous interpretation signals; the multi-channel decoder is used for performing multi-channel simultaneous decoding on the multi-channel simultaneous interpretation signals to obtain multi-channel simultaneous data; the dual-channel transmission host is used for performing dual-channel data synchronous encoding and synchronous transmission on the multi-channel simultaneous data, including an optical transmission link and an electromagnetic wave transmission link, the optical transmission link is used for generating an optical carrier signal, and the electromagnetic wave transmission link is used for generating an electromagnetic carrier signal.

[0011] More specifically, the dual-path receiving backend includes an optical path receiving module, an electromagnetic wave receiving module, a processing unit, a codec processing module, a link switching unit and a power supply unit; the codec processing module is a dual-path codec processing module, and is respectively connected to 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 codec processing module is electrically connected to the processing unit; the link switching unit and the power supply unit are also electrically connected to the processing unit; the processing unit includes a processor and a buffer, the processor is electrically connected to the buffer, and the buffer includes an optical path buffer and an electromagnetic buffer.

[0012] As a further solution, 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 transmission signal; the buffer is used to provide data cache space for the processor, the processor is used to perform data processing on the dual-path simultaneous transmission signal to obtain an output optical path digital signal and an electromagnetic wave digital signal, and the link switching unit is used to switch the optical path digital signal and the electromagnetic wave digital signal to a single signal output.

[0013] As a further solution, the optical path transmission link includes a multi-channel optical encoding module for receiving multi-channel simultaneous data and performing optical communication encoding, an optical path carrier generation module for generating an optical path carrier, an optical path carrier modulation module for modulating the multi-channel optical encoding with the optical path carrier, and an optical path generator for generating communication light; the optical path carrier modulation module is electrically connected to the optical path carrier generation module and the optical path carrier modulation module respectively, and the optical path generator is electrically connected to the optical path carrier modulation module.

[0014] Furthermore, the electromagnetic wave transmission link includes a multi-channel electromagnetic wave encoding module, an electromagnetic carrier generation module, an electromagnetic carrier modulation module and an electromagnetic wave generator; the electromagnetic carrier modulation module is electrically connected to the multi-channel electromagnetic wave encoding module and the electromagnetic carrier generation module respectively, and the electromagnetic wave generator is electrically connected to the electromagnetic carrier modulation module.

[0015] As a further solution, the dual-path receiving backend is also provided with an optical path frequency selection module and an electromagnetic wave frequency selection module, the optical path frequency selection module is electrically connected to the optical path receiving module; the electromagnetic wave frequency selection module is electrically connected to the electromagnetic wave receiving module.

[0016] As a further solution, the two-way transmitting front end and the two-way receiving back end perform simultaneous interpretation through the following steps:

[0017] Dual-channel transmitter front end:

[0018] A1 Each simultaneous interpreter performs simultaneous interpretation and converts the interpreted speech into input electrical signals through the interpreter machine;

[0019] A2 Each interpreter machine sends the input electrical signal to the simultaneous interpretation host and performs multi-channel sampling to obtain multi-channel simultaneous interpretation signals;

[0020] A3 sends the multi-channel simultaneous translation signals to the multi-channel decoder and performs multi-channel simultaneous decoding to obtain multi-channel simultaneous data;

[0021] A4 sends multi-channel simultaneous data to the dual-channel transmitting host and performs dual-channel carrier modulation to obtain optical carrier signals and electromagnetic carrier signals;

[0022] A5 transmits the optical carrier signal and the electromagnetic carrier signal through the optical generator and the electromagnetic wave generator respectively;

[0023] A6 Repeat steps A1 to A5 until the simultaneous interpretation is finished;

[0024] Dual-channel receiving backend:

[0025] The B1 processor reads the frequency selection frequencies of the optical path frequency selection module and the electromagnetic wave frequency selection module, and the processor reads the selection link of the link switching unit;

[0026] B2 receives the optical carrier signal and electromagnetic carrier signal transmitted by the dual-channel transmitting front end through the optical receiving module and the electromagnetic wave receiving module, and obtains the dual-channel simultaneous transmission signal by selecting the frequency signal through the frequency selection frequency;

[0027] B3 processes the dual-channel simultaneous transmission signals through a processor to obtain output optical digital signals and electromagnetic wave digital signals;

[0028] B4 selects the output optical path digital signal and the electromagnetic wave digital signal through the selection link set by the link switching unit to output a single signal output;

[0029] B5 Repeat steps B1 to B4 until the simultaneous interpretation is completed.

[0030] As a further solution, the buffer is a ring buffer; the processor is a micro MCU processor, the dual-channel simultaneous transmission signal includes an optical path input signal and an electromagnetic wave input signal, the optical path input signal and the electromagnetic wave input signal use a unified time axis, and the link switching unit is a dual-mode switching switch.

[0031] Specifically, a data framing module is provided in the dual-channel transmitting host; the data framing module is used to frame the input signal according to a preset frame length, and the preset frame length is based on the time axis to cut the input signal to obtain a plurality of frame segments;

[0032] More specifically, a frame marking module is provided in the dual-channel transmission host; the frame marking module generates frame marks according to the time axis, and marks the frame segments with frame marks corresponding to the time axis respectively.

[0033] As a further solution, a communication data synchronization switching module is provided in the processor, and the communication data synchronization switching module implements the communication data synchronization switching through the following steps:

[0034] S1 collects dual-channel simultaneous transmission signals through the optical receiving module and the electromagnetic wave receiving module;

[0035] S2 unpacks the dual-channel simultaneous transmission signal and extracts a frame data sequence, wherein the frame data sequence includes an optical path frame segment and an electromagnetic wave frame segment;

[0036] S3 unpacks the dual-channel simultaneous transmission signal and extracts the frame marking sequence;

[0037] S4 injects the optical path frame segments and the electromagnetic wave frame segments into the ring buffer in real time;

[0038] The S5 processing unit outputs the optical path digital signal / electromagnetic wave digital signal according to the link currently selected by the dual-mode switching switch, obtains the current output digital signal, and uses the unoutput digital signal as the switched output digital signal;

[0039] S6 When the processor detects that the dual-mode switch is switched, the current frame mark and the next frame mark are recorded;

[0040] S7 searches the ring buffer for the optical path frame segment and the electromagnetic wave frame segment corresponding to the current frame mark and the next frame mark;

[0041] S8 splices the switching output digital signal corresponding to the next frame mark after the current frame mark of the current output digital signal to obtain a communication data synchronous switching digital signal;

[0042] S9 outputs the communication data synchronous switching digital signal as the current output digital signal to complete the communication data synchronous switching.

[0043] As a further solution, a link indicator light is further provided, wherein 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 electrically connected to the processing unit respectively.

[0044] As a further solution, a CODEC is also provided, which is electrically connected to the processing unit and is used 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.

[0045] As a further solution, the optical path transmission link is an infrared transmission link, and infrared light is selected as the transceiver carrier, the electromagnetic wave transmission link is a WIFI transmission link, and a WIFI signal with a frequency of 2.4GHz or 5GHz is selected as the transceiver carrier; the optical path receiving module is an infrared receiving module, and the electromagnetic wave receiving module is a WIFI receiving module.

[0046] Compared with the related art, the dual-link simultaneous interpretation system based on optical wireless and electromagnetic wave wireless provided by the present invention has the following beneficial effects:

[0047] 1. The present invention selects a transmitting front end capable of transmitting dual-channel carrier signals to transmit dual-channel carrier signals; and receives the dual-channel carrier signals in real time through a dual-channel receiving back end. Through the dual-link setting, when a single link fails, the normal simultaneous interpretation will not be affected. In addition, the dual-link communication can also improve the quality and stability of communication, and can operate well in different occasions.

[0048] 2. The present invention is also provided with an optical frequency selection module and an electromagnetic wave frequency selection module to select a frequency signal through a frequency selection frequency to achieve the effect of selecting a translation language; the analog signal output obtained by processing by a CODEC codec can be directly played through a loudspeaker;

[0049] 3. The present invention divides the dual-channel simultaneous transmission signal into frames through a data framing module, obtains a framing mark sequence through a framing mark module, and injects each frame into a buffer in real time. When switching, the next frame to be played can be found. By switching the next frame, the channel switching can be completed without affecting the existing communication, and there is no delay or loss.

[0050] 4. The present invention uses infrared signals and WIFI signals as dual-channel carriers, which can adapt to many scenarios such as long-distance communication, short-range communication, communication in restricted environments, and communication in open environments, greatly enhancing the applicable scenarios of the device and greatly improving the communication quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 A schematic diagram of a preferred system of a dual-link simultaneous interpretation system based on optical wireless and electromagnetic wave wireless provided by an embodiment of the present invention;

[0052] Figure 2 A schematic diagram of a preferred system of a multi-channel transmission host provided by an embodiment of the present invention;

[0053] Figure 3 A schematic diagram of a dual-path switching process provided by an embodiment of the present invention Figure 1 ;

[0054] Figure 4 A schematic diagram of a dual-path switching process provided by an embodiment of the present invention Figure 2 . DETAILED DESCRIPTION

[0055] The present invention will be further described below in conjunction with the accompanying drawings and implementation modes.

[0056] like Figures 1 to 4 As shown, this embodiment provides a dual-link simultaneous interpretation system based on optical wireless and electromagnetic wave wireless, including a dual-path transmitting front end for transmitting dual-path carrier signals and a dual-path receiving back end for receiving dual-path carrier signals.

[0057] It should be noted that: the traditional simultaneous interpretation backend often only provides a single-mode signal reception, and the signal transmitting unit also only transmits a single-channel signal; when a single-channel signal is interfered with, for example, there are problems such as shielding and other light wave interference with infrared signals, and electromagnetic wave signals may have signal instability and interference problems. The obstruction of a single-channel signal will directly affect the quality of simultaneous interpretation. Therefore, this embodiment selects a dual-channel transmitting front end that can transmit a dual-channel carrier signal to transmit a dual-channel carrier signal; and the dual-channel receiving back end receives the dual-channel carrier signal in real time. Through the dual-link setting, when a single link fails, it will not affect the normal progress of simultaneous interpretation. In addition, dual-link communication can also improve the quality and stability of communication, and can operate well in different occasions.

[0058] Specifically, the dual-channel transmission front end includes a plurality of interpreters, a simultaneous interpretation host, a multi-channel decoder and a dual-channel transmission host; the plurality of interpreters are electrically connected to the simultaneous interpretation host respectively, and the simultaneous interpretation host is electrically connected to the multi-channel decoder; wherein the interpreters are responsible for collecting the voices translated by each simultaneous interpreter and converting them into input electrical signals; the simultaneous interpretation host is responsible for receiving the input electrical signals sent by each interpreter and obtaining multi-channel simultaneous interpretation signals; the multi-channel decoder is used for performing multi-channel simultaneous decoding on the multi-channel simultaneous interpretation signals to obtain multi-channel simultaneous data; the dual-channel transmission host is used for performing dual-channel data synchronous encoding and synchronous transmission on the multi-channel simultaneous data, including an optical transmission link and an electromagnetic wave transmission link, the optical transmission link is used for generating an optical carrier signal, and the electromagnetic wave transmission link is used for generating an electromagnetic carrier signal.

[0059] It should be noted that: the simultaneous interpretation host can involve multiple interpreters, each of which can correspond to a simultaneous language translation. The simultaneous interpretation host can summarize and transmit the electrical signals collected by each interpreter. The simultaneous interpretation host used in this embodiment can adopt an existing multi-channel signal collector to collect multiple electrical signals and upload them to a multi-channel decoder; the multi-channel decoder can decode each signal of the multiple simultaneous interpretation signals separately, and the multi-channel decoder can use a multi-channel audio codec with a model of WM8595.

[0060] More specifically, the dual-path receiving backend includes an optical path receiving module, an electromagnetic wave receiving module, a processing unit, a codec processing module, a link switching unit and a power supply unit; the codec processing module is a dual-path codec processing module, and is respectively connected to 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 codec processing module is electrically connected to the processing unit; the link switching unit and the power supply unit are also electrically connected to the processing unit; the processing unit includes a processor and a buffer, the processor is electrically connected to the buffer, and the buffer includes an optical path buffer and an electromagnetic buffer.

[0061] It should be noted that: the optical path receiving module can be set using a BRM-15S8 infrared receiving head, the electromagnetic wave receiving module can use a WIFI receiving module with model CC113LRGPR; the processing unit uses an MCU processing unit; the encoding and decoding processing module can be a soft decoding module and implemented through the processing unit, or it can be externally connected to a separate decoding chip, and the link switching unit can be set using a rocker switch; the power supply module uses an existing 5v or 12v DC power supply unit.

[0062] As a further solution, 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 transmission signal; the buffer is used to provide data cache space for the processor, the processor is used to perform data processing on the dual-path simultaneous transmission signal to obtain an output optical path digital signal and an electromagnetic wave digital signal, and the link switching unit is used to switch the optical path digital signal and the electromagnetic wave digital signal to a single signal output.

[0063] As a further solution, the optical path transmission link includes a multi-channel optical encoding module for receiving multi-channel simultaneous data and performing optical communication encoding, an optical path carrier generation module for generating an optical path carrier, an optical path carrier modulation module for modulating the multi-channel optical encoding with the optical path carrier, and an optical path generator for generating communication light; the optical path carrier modulation module is electrically connected to the optical path carrier generation module and the optical path carrier modulation module respectively, and the optical path generator is electrically connected to the optical path carrier modulation module.

[0064] Furthermore, the electromagnetic wave transmission link includes a multi-channel electromagnetic wave encoding module, an electromagnetic carrier generation module, an electromagnetic carrier modulation module and an electromagnetic wave generator; the electromagnetic carrier modulation module is electrically connected to the multi-channel electromagnetic wave encoding module and the electromagnetic carrier generation module respectively, and the electromagnetic wave generator is electrically connected to the electromagnetic carrier modulation module.

[0065] It should be noted that: Figure 2 As shown, the optical path generator can 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 can be modulated by an AND gate circuit, the electromagnetic wave generator can be set by a 2.4G / 5.0G wireless module, and the multi-channel optical encoding module can use an infrared encoder / decoder of model MCP2120; the electromagnetic wave encoding module can use a WIFI encoding module with a built-in wireless network protocol IEEE802.11b.gn protocol stack and a TCP / IP protocol stack. Each carrier generation circuit can use an existing SPWM wave generator.

[0066] As a further solution, the dual-path receiving backend is also provided with an optical path frequency selection module and an electromagnetic wave frequency selection module, the optical path frequency selection module is electrically connected to the optical path receiving module; the electromagnetic wave frequency selection module is electrically connected to the electromagnetic wave receiving module.

[0067] As a further solution, the two-way transmitting front end and the two-way receiving back end perform simultaneous interpretation through the following steps:

[0068] Dual-channel transmitter front end:

[0069] A1 Each simultaneous interpreter performs simultaneous interpretation and converts the interpreted speech into input electrical signals through the interpreter machine;

[0070] A2 Each interpreter machine sends the input electrical signal to the simultaneous interpretation host and performs multi-channel sampling to obtain multi-channel simultaneous interpretation signals;

[0071] A3 sends the multi-channel simultaneous translation signals to the multi-channel decoder and performs multi-channel simultaneous decoding to obtain multi-channel simultaneous data;

[0072] A4 sends multi-channel simultaneous data to the dual-channel transmitting host and performs dual-channel carrier modulation to obtain optical carrier signals and electromagnetic carrier signals;

[0073] A5 transmits the optical carrier signal and the electromagnetic carrier signal through the optical generator and the electromagnetic wave generator respectively;

[0074] A6 Repeat steps A1 to A5 until the simultaneous interpretation is finished;

[0075] Dual-channel receiving backend:

[0076] The B1 processor reads the frequency selection frequencies of the optical path frequency selection module and the electromagnetic wave frequency selection module, and the processor reads the selection link of the link switching unit;

[0077] B2 receives the optical carrier signal and electromagnetic carrier signal transmitted by the dual-channel transmitting front end through the optical receiving module and the electromagnetic wave receiving module, and obtains the dual-channel simultaneous transmission signal by selecting the frequency signal through the frequency selection frequency;

[0078] B3 processes the dual-channel simultaneous transmission signals through a processor to obtain output optical digital signals and electromagnetic wave digital signals;

[0079] B4 selects the output optical path digital signal and the electromagnetic wave digital signal through the selection link set by the link switching unit to output a single signal output;

[0080] B5 Repeat steps B1 to B4 until the simultaneous interpretation is completed.

[0081] It should be noted that: Figure 1As shown, the effect of selecting the translation language is achieved by selecting the frequency signal through the frequency selection frequency.

[0082] As a further solution, the buffer is a ring buffer; the processor is a micro MCU processor, the dual-channel simultaneous transmission signal includes an optical path input signal and an electromagnetic wave input signal, the optical path input signal and the electromagnetic wave input signal use a unified time axis, and the link switching unit is a dual-mode switching switch.

[0083] Specifically, a data framing module is provided in the dual-channel transmitting host; the data framing module is used to frame the input signal according to a preset frame length, and the preset frame length is based on the time axis to cut the input signal to obtain a plurality of frame segments;

[0084] More specifically, a frame marking module is provided in the dual-channel transmission host; the frame marking module generates frame marks according to the time axis, and marks the frame segments with frame marks corresponding to the time axis respectively.

[0085] It should be added that: the dual-channel simultaneous interpretation signal received by this embodiment comes from the dual-channel transmission front end, which packages the transmission data and then transmits it remotely through the dual-channel carrier; the digital simultaneous interpretation system unpacks it; and obtains various data in the data packet, wherein the data packet includes a frame data sequence and a frame mark sequence, the frame data sequence from the electromagnetic wave link is composed of electromagnetic wave frame segments, and the frame data sequence from the optical wave link is composed of optical path frame segments.

[0086] As a further solution, a communication data synchronization switching module is provided in the processor, and the communication data synchronization switching module implements the communication data synchronization switching through the following steps:

[0087] S1 collects dual-channel simultaneous transmission signals through the optical receiving module and the electromagnetic wave receiving module;

[0088] S2 unpacks the dual-channel simultaneous transmission signal and extracts a frame data sequence, wherein the frame data sequence includes an optical path frame segment and an electromagnetic wave frame segment;

[0089] S3 unpacks the dual-channel simultaneous transmission signal and extracts the frame marking sequence;

[0090] S4 injects the optical path frame segments and the electromagnetic wave frame segments into the ring buffer in real time;

[0091] The S5 processing unit outputs the optical path digital signal / electromagnetic wave digital signal according to the link currently selected by the dual-mode switching switch, obtains the current output digital signal, and uses the unoutput digital signal as the switched output digital signal;

[0092] S6 When the processor detects that the dual-mode switch is switched, the current frame mark and the next frame mark are recorded;

[0093] S7 searches the ring buffer for the optical path frame segment and the electromagnetic wave frame segment corresponding to the current frame mark and the next frame mark;

[0094] S8 splices the switching output digital signal corresponding to the next frame mark after the current frame mark of the current output digital signal to obtain a communication data synchronous switching digital signal;

[0095] S9 outputs the communication data synchronous switching digital signal as the current output digital signal to complete the communication data synchronous switching.

[0096] It should be noted that: the existing system generally has the problem of temporary communication loss, interruption, and flickering when the signal is switched. The reason is that when the traditional dual-channel system switches channels, the channels are different in decoding rate, transmission rate, and carrier characteristics, which leads to the inability to synchronize the timing of each channel. There is always one signal that is too fast or too slow. When the switching channel is slower than the current channel, the information corresponding to the timing will be lost; when the switching channel is faster than the current channel, the information corresponding to the timing will flicker; when the timing of the channels differs too much, the signal cannot be switched, resulting in communication interruption.

[0097] Therefore, this embodiment proposes a switching processing step for a dual-link simultaneous interpretation system to solve the problems of temporary communication loss, interruption, flickering, etc. that occur when switching dual-channel channels. This embodiment frames the dual-channel simultaneous interpretation signal through a data framing module, obtains a framing mark sequence through a framing mark module, and injects each frame into a buffer in real time. When switching, it can find the next frame to be played. By switching the next frame, the channel switching can be completed without affecting the existing communication, and there is no delay or loss. In addition, the addition of a buffer makes digital simultaneous interpretation smoother. Manual switching mode can meet specific communication needs, provide users with the freedom to choose channels, and make the device more practical.

[0098] As a further solution, a link indicator light is further provided, wherein 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 electrically connected to the processing unit respectively.

[0099] As a further solution, a CODEC is also provided, which is electrically connected to the processing unit and is used 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.

[0100] As a further solution, the optical path transmission link is an infrared transmission link, and infrared light is selected as the transceiver carrier, the electromagnetic wave transmission link is a WIFI transmission link, and a WIFI signal with a frequency of 2.4GHz or 5GHz is selected as the transceiver carrier; the optical path receiving module is an infrared receiving module, and the electromagnetic wave receiving module is a WIFI receiving module.

[0101] It should be noted that using infrared signals and WIFI signals as dual-channel carriers can adapt to many scenarios such as long-distance communication, short-range communication, communication in restricted environments, and communication in open environments, which greatly enhances the applicable scenarios of the device and greatly improves the communication quality.

[0102] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A dual-link simultaneous interpretation system based on optical wireless and electromagnetic wave wireless, characterized in that: It includes a dual-path transmitting front end for transmitting dual-path carrier signals and a dual-path receiving back end for receiving dual-path carrier signals; The dual-channel transmission front end includes a plurality of interpreters, a simultaneous interpretation host, a multi-channel decoder and a dual-channel transmission host; the plurality of interpreters are electrically connected to the simultaneous interpretation host respectively, and the simultaneous interpretation host is electrically connected to the multi-channel decoder; wherein the interpreters are responsible for collecting the voices translated by each simultaneous interpreter and converting them into input electrical signals; the simultaneous interpretation host is responsible for receiving the input electrical signals sent by each interpreter and obtaining multi-channel simultaneous interpretation signals; the multi-channel decoder is used for performing multi-channel simultaneous decoding on the multi-channel simultaneous interpretation signals to obtain multi-channel simultaneous data; the dual-channel transmission host is used for performing dual-channel data synchronous encoding and synchronous transmission on the multi-channel simultaneous data, including an optical transmission link and an electromagnetic wave transmission link, the optical transmission link is used for generating an optical carrier signal, and the electromagnetic wave transmission link is used for generating an electromagnetic carrier signal; The dual-path receiving backend includes an optical path receiving module, an electromagnetic wave receiving module, a processing unit, a codec processing module, a link switching unit and a power supply unit; the codec processing module is a dual-path codec processing module, and forms an optical carrier data link and an electromagnetic carrier data link with the optical path receiving module and the electromagnetic wave receiving module respectively, and the codec processing module is electrically connected to the processing unit; the link switching unit and the power supply unit are also electrically connected to the processing unit; the processing unit includes a processor and a buffer, the processor is electrically connected to the buffer, and the buffer includes an optical path buffer and an electromagnetic buffer; The optical carrier data link and the electromagnetic carrier data link respectively collect and decode the optical carrier signal and the electromagnetic carrier signal to obtain a dual-channel simultaneous transmission signal; The buffer is a ring buffer; the processor is a micro MCU processor; the dual-channel simultaneous transmission signal includes an optical input signal and an electromagnetic wave input signal, the optical input signal and the electromagnetic wave input signal use a unified time axis, and the link switching unit is a dual-mode switching switch; The dual-channel transmitting host is provided with a data framing module; the data framing module is used to frame the input signal according to a preset frame length, the preset frame length is based on the time axis, and the input signal is cut to obtain a plurality of frame segments; The dual-channel transmitting host is provided with a frame marking module; the frame marking module generates frame marks according to the time axis, and marks the frame segments with frame marks corresponding to the time axis respectively; The processor is provided with a communication data synchronous switching module, and the communication data synchronous switching module implements the communication data synchronous switching through the following steps: S1 collects dual-channel simultaneous transmission signals through the optical receiving module and the electromagnetic wave receiving module; S2 unpacks the dual-channel simultaneous transmission signal and extracts a frame data sequence, wherein the frame data sequence includes an optical path frame segment and an electromagnetic wave frame segment; S3 unpacks the dual-channel simultaneous transmission signal and extracts the frame marking sequence; S4 injects the optical path frame segments and the electromagnetic wave frame segments into the ring buffer in real time; The S5 processing unit outputs the optical path digital signal / electromagnetic wave digital signal according to the link currently selected by the dual-mode switching switch, obtains the current output digital signal, and uses the unoutput digital signal as the switched output digital signal; S6 When the processor detects that the dual-mode switch is switched, the current frame mark and the next frame mark are recorded; S7 searches the ring buffer for the optical path frame segment and the electromagnetic wave frame segment corresponding to the current frame mark and the next frame mark; S8 splices the switching output digital signal corresponding to the next frame mark after the current frame 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 to complete the communication data synchronous switching.

2. A dual-link simultaneous interpretation system based on optical wireless and electromagnetic wave wireless according to claim 1, characterized in that: The buffer is used to provide data cache space for the processor, the processor is used to process the dual-channel simultaneous transmission signal to obtain output optical path digital signals and electromagnetic wave digital signals, and the link switching unit is used to switch the optical path digital signals and electromagnetic wave digital signals to single signal output.

3. A dual-link simultaneous interpretation system based on optical wireless and electromagnetic wave wireless according to claim 2, characterized in that: The optical transmission link includes a multi-channel optical encoding module for receiving multi-channel simultaneous data and performing optical communication encoding, an optical carrier generation module for generating an optical carrier, an optical carrier modulation module for modulating the multi-channel optical encoding with the optical carrier, and an optical generator for generating communication light; the optical carrier modulation module is electrically connected to the optical carrier generation module and the optical carrier modulation module respectively, and the optical generator is electrically connected to the optical carrier modulation module; The electromagnetic wave transmission link includes a multi-channel electromagnetic wave encoding module, an electromagnetic carrier generation module, an electromagnetic carrier modulation module and an electromagnetic wave generator; the electromagnetic carrier modulation module is electrically connected to the multi-channel electromagnetic wave encoding module and the electromagnetic carrier generation module respectively, and the electromagnetic wave generator is electrically connected to the electromagnetic carrier modulation module.

4. A dual-link simultaneous interpretation system based on optical wireless and electromagnetic wave wireless according to claim 3, characterized in that: The dual-path receiving back end is also provided with an optical path frequency selection module and an electromagnetic wave frequency selection module. The optical path frequency selection module is electrically connected to the optical path receiving module; the electromagnetic wave frequency selection module is electrically connected to the electromagnetic wave receiving module.

5. A dual-link simultaneous interpretation system based on optical wireless and electromagnetic wave wireless according to claim 4, characterized in that: The two-way transmitting front end and the two-way receiving back end perform simultaneous interpretation through the following steps: Dual-channel transmitter front end: A1 Each simultaneous interpreter performs simultaneous interpretation and converts the interpreted speech into input electrical signals through the interpreter machine; A2 Each interpreter machine sends the input electrical signal to the simultaneous interpretation host and performs multi-channel sampling to obtain multi-channel simultaneous interpretation signals; A3 sends the multi-channel simultaneous translation signals to the multi-channel decoder and performs multi-channel simultaneous decoding to obtain multi-channel simultaneous data; A4 sends multi-channel simultaneous data to the dual-channel transmitting host and performs dual-channel carrier modulation to obtain optical carrier signals and electromagnetic carrier signals; A5 transmits the optical carrier signal and the electromagnetic carrier signal through the optical generator and the electromagnetic wave generator respectively; A6 Repeat steps A1 to A5 until the simultaneous interpretation is finished; Dual-channel receiving backend: The B1 processor reads the frequency selection frequencies of the optical path frequency selection module and the electromagnetic wave frequency selection module, and the processor reads the selection link of the link switching unit; B2 receives the optical carrier signal and electromagnetic carrier signal transmitted by the dual-channel transmitting front end through the optical receiving module and the electromagnetic wave receiving module, and obtains the dual-channel simultaneous transmission signal by selecting the frequency signal through the frequency selection frequency; B3 processes the dual-channel simultaneous transmission signals through a processor to obtain output optical digital signals and electromagnetic wave digital signals; B4 selects the output optical path digital signal and the electromagnetic wave digital signal through the selection link set by the link switching unit to output a single signal output; B5 Repeat steps B1 to B4 until the simultaneous interpretation is completed.

6. A dual-link simultaneous interpretation system based on optical wireless and electromagnetic wave wireless according to claim 5, characterized in that: A link indicator light is also provided, and 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 electrically connected to the processing unit respectively.

7. A dual-link simultaneous interpretation system based on optical wireless and electromagnetic wave wireless according to claim 6, characterized in that: A CODEC is also provided, which is electrically connected to the processing unit and is used 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 the speaker.

8. The dual-link simultaneous interpretation system based on optical wireless and electromagnetic wave wireless according to claim 7, characterized in that: The optical path transmitting link is an infrared transmitting link, and infrared light is selected as the transceiver carrier; the electromagnetic wave transmitting link is a WIFI transmitting link, and a WIFI signal with a frequency of 2.4 GHz or 5 GHz is selected as the transceiver 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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