CN108777597A - A kind of underwater acoustic communication equipment and method - Google Patents
A kind of underwater acoustic communication equipment and method Download PDFInfo
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- CN108777597A CN108777597A CN201810996072.4A CN201810996072A CN108777597A CN 108777597 A CN108777597 A CN 108777597A CN 201810996072 A CN201810996072 A CN 201810996072A CN 108777597 A CN108777597 A CN 108777597A
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- 238000004891 communication Methods 0.000 title claims abstract description 128
- 238000000034 method Methods 0.000 title claims abstract description 56
- 230000003321 amplification Effects 0.000 claims description 49
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 49
- 230000005236 sound signal Effects 0.000 claims description 23
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 6
- 230000006855 networking Effects 0.000 claims description 5
- 238000005538 encapsulation Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 5
- 238000001914 filtration Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B11/00—Transmission systems employing sonic, ultrasonic or infrasonic waves
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B13/00—Transmission systems characterised by the medium used for transmission, not provided for in groups H04B3/00 - H04B11/00
- H04B13/02—Transmission systems in which the medium consists of the earth or a large mass of water thereon, e.g. earth telegraphy
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
A kind of underwater acoustic communication equipment and method that the embodiment of the present invention proposes, master control borad, pre-amplifier, power amplifier and supply unit in underwater acoustic communication equipment are stacked composition multilayer circuit board stacked structure, have the advantages of small, light-weight, saving installation space.
Description
Technical field
The present embodiments relate to technical field of underwater acoustic communication, and in particular to a kind of underwater acoustic communication equipment and method.
Background technology
Underwater sound communication is the communication mode for the unique feasible for carrying out long range wireless communication under water so far.
Most underwater wireless networking application scenes (such as the networking of underwater hiding-machine) are to mobility, ocean complex environment
Adaptability, energy saving (using battery powered) etc. have higher requirements.In order to meet above-mentioned requirements, it is therefore necessary to provide one
Small, the high and low power consumption of flexibility of kind and the underwater acoustic communication equipment for having networking function.
Invention content
In order to solve the above-mentioned technical problem above-mentioned technical problem or is at least partly solved, an embodiment of the present invention provides
A kind of underwater acoustic communication equipment and method.
In view of this, in a first aspect, the embodiment of the present invention provides a kind of underwater acoustic communication equipment, including：Underwater acoustic transducer, master
Control plate, pre-amplifier, power amplifier and supply unit；
The supply unit is connect with the underwater acoustic transducer, master control borad, pre-amplifier and power amplifier respectively, is used
In power supply；
The output end of the underwater acoustic transducer and the input terminal of pre-amplifier connect；The input terminal of the underwater acoustic transducer
It is connect with the output end of power amplifier；
The master control borad is connect with the input terminal of the output end of the pre-amplifier and power amplifier respectively；
The master control borad, pre-amplifier, power amplifier and supply unit are stacked composition multilayer circuit board and stack
Structure.
Optionally, the master control borad includes digital analog converter, analog-digital converter, dsp processor and external communication interface；
The input terminal of the analog-digital converter is connect with the pre-amplifier output end, the output of the analog-digital converter
End is connect with the dsp processor；
The input terminal of the digital analog converter is connect with the dsp processor, the output end of the digital analog converter and institute
State the input terminal connection of power amplifier；
The dsp processor is also connect with the external communication interface.
Optionally, the dsp processor includes modulation /demodulation module and first communication module；
The modulation /demodulation module is connect with the first communication module；
The modulation /demodulation module is also connect with the analog-digital converter, digital analog converter and external communication interface respectively.
Optionally, the master control borad further includes：
Arm processor, the arm processor are connect with the first communication module, the external communication interface respectively.
Optionally, the arm processor includes network protocol stack module and second communication module；
The network protocol stack module is connect with the second communication module；
The network protocol stack module is also connect with external communication interface；
The second communication module is also connect with the first communication module.
Optionally, the network protocol stack module includes：Agreement submodule, switch module and modulation /demodulation driver；
The switch module is connect with the agreement submodule and modulation /demodulation driver respectively；
The modulation /demodulation driver is connect with the modulation /demodulation module.
Second aspect, the embodiment of the present invention also provide a kind of underwater acoustic communication method, are applied to underwater acoustic communication equipment, the water
Acoustic communication method includes：Point-to-point Communication Method；
The Point-to-point Communication Method includes：
Underwater acoustic transducer receives underwater sound signal, and converts underwater sound signal to electric signal；
Pre-amplifier carries out power amplification to the electric signal；
Master control borad handles the electric signal after the power amplification and is sent to external equipment；
The Point-to-point Communication Method further includes：
Master control borad receives the raw information that external equipment is sent and processing, obtains electric signal；
Power amplifier carries out power amplification to obtained electric signal；
Underwater acoustic transducer converts the electric signal after the power amplification to underwater sound signal and emits.
Optionally, master control borad handles the electric signal after the power amplification, including：
Analog-digital converter on the master control borad carries out analog-to-digital conversion to the electric signal after the power amplification, obtains number
Signal；
Dsp processor on the master control borad is demodulated and parsed to obtain valid data to the digital signal；
The valid data are sent to external equipment by the external communication interface on the master control borad.
Optionally, master control borad receives the raw information and processing that external equipment is sent, including：
External communication interface on the master control borad receives the raw information that external equipment is sent；
Dsp processor on the master control borad is encoded and is modulated to raw information, and digital signal is obtained；
Digital analog converter on the master control borad carries out digital-to-analogue conversion to the digital signal, obtains analog signal, and will
The analog signal is sent to the power amplifier.
Optionally, the underwater acoustic communication method further includes：Group-net communication method；
The group-net communication method includes：
External communication interface on the master control borad receives the raw information that external equipment is sent；
Network protocol stack module in arm processor on the master control borad compresses the raw information, splits,
Coding, encapsulation process obtain independent data packet；
Dsp processor on the master control borad is modulated to obtain digital signal to the data packet；
The digital signal is converted into analog signal by the digital analog converter on the master control borad；
The power amplifier carries out power amplification to the analog signal；
The analog signal after power amplification is converted to underwater sound signal and emitted by the underwater acoustic transducer.
Optionally, the group-net communication method further includes：
Underwater acoustic transducer converts the underwater sound signal of reception to electric signal；
The pre-amplifier carries out power amplification to electric signal；
Electric signal after power amplification is converted into digital signal by the analog-digital converter on the master control borad；
Dsp processor on the master control borad demodulates the digital signal；
Network protocol stack module in arm processor on the master control borad parses the digital signal after demodulation；
The data parsed are sent to external equipment by the external communication interface on the master control borad.
Optionally, the group-net communication method further includes：Relay communication method；
The relay communication method includes：
Underwater acoustic transducer converts the underwater sound signal of reception to electric signal；
The pre-amplifier carries out power amplification to electric signal；
Electric signal after power amplification is converted into digital signal by the analog-digital converter on the master control borad；
Dsp processor on the master control borad demodulates the digital signal；
Network protocol stack module in arm processor on the master control borad parses the digital signal after demodulation,
Then it is encapsulated again, obtains data packet；
Dsp processor on the master control borad is modulated to obtain digital signal to the data packet；
Digital analog converter on the master control borad converts digital signals into analog signal；
The power amplifier carries out power amplification to the analog signal；
The analog signal after power amplification is converted to underwater sound signal and emitted by the underwater acoustic transducer.
Compared with prior art, a kind of underwater acoustic communication equipment that the embodiment of the present invention proposes, master control borad, pre-amplifier, work(
Rate amplifier and supply unit are stacked composition multilayer circuit board stacked structure, have small, light-weight, saving installation sky
Between the advantages of.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be in embodiment or description of the prior art
Required attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the present invention
Example is applied, it for those of ordinary skill in the art, without having to pay creative labor, can also be attached according to these
Figure obtains other attached drawings.
Fig. 1 is underwater acoustic communication equipment structural schematic diagram provided in an embodiment of the present invention；
Fig. 2 is a kind of schematic diagram of master control borad provided in an embodiment of the present invention；
Fig. 3 is the schematic diagram of another master control borad provided in an embodiment of the present invention；
Fig. 4 is the schematic diagram of dsp processor provided in an embodiment of the present invention and arm processor；
Fig. 5 is the method for reseptance flow chart of point-to-point communication provided in an embodiment of the present invention；
Fig. 6 is the sending method flow chart of point-to-point communication provided in an embodiment of the present invention；
Fig. 7 is the sending method flow chart of group-net communication provided in an embodiment of the present invention；
Fig. 8 is the method for reseptance flow chart of group-net communication provided in an embodiment of the present invention；
Fig. 9 is relay communication method flow chart provided in an embodiment of the present invention.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The every other embodiment that member is obtained without making creative work, shall fall within the protection scope of the present invention.
Referring to Fig.1, Fig. 1 is a kind of underwater acoustic communication equipment structural schematic diagram provided in an embodiment of the present invention, and the underwater sound is logical
Believe that equipment includes：
Underwater acoustic transducer 1, master control borad 2, supply unit 3, pre-amplifier 4 and power amplifier 5；
The supply unit 3 connects with the underwater acoustic transducer 1, master control borad 2, pre-amplifier 4 and power amplifier 5 respectively
It connects, for powering；
The output end of the underwater acoustic transducer 1 is connect by pre-amplifier 4 with the input terminal of the master control borad 2；It is described
The input terminal of underwater acoustic transducer 1 is connect by power amplifier 5 with the output end of the master control borad 2；
The underwater acoustic transducer 1, for converting underwater sound signal to electric signal and converting electrical signals to underwater sound signal；
The pre-amplifier 4 is connect with the underwater acoustic transducer 1, the electricity for receiving the transmission of the underwater acoustic transducer 1
Signal, and power amplification is carried out to the electric signal；
The master control borad 2 is connect with the pre-amplifier 4, is received through 4 amplified electric signal of the pre-amplifier；
The power amplifier 5 is connect with the master control borad 2, receives the signal of the transmission of the master control borad 2, and to the letter
Number carry out power amplification；
The underwater acoustic transducer 1 is connect with the power amplifier 5, receives the signal of the transmission of the power amplifier 5, and
Emit the signal；
The master control borad 2, pre-amplifier 4, power amplifier 5 and supply unit 3 are stacked composition multilayer circuit board
Stacked structure.
This multilayer circuit board stacked structure, small volume save installation space.
Further, in certain embodiments, the multilayer circuit board stacked structure is that multi-layer circular circuit board stacks knot
Structure, such as：In view of underwater acoustic communication equipment is widely used in underwater underwater untethered submersible, the underwater big portion of underwater untethered submersible
It is all class cylindrical shape to divide and space is limited, and multilayer circle may be used in the board structure of circuit of underwater acoustic communication equipment provided by the present application
Shape circuit board stacked structure, can greatly reduce equipment installation volume.
Further, in certain embodiments with reference to Fig. 2, master control borad 2 includes digital analog converter 210, analog-digital converter
220, dsp processor 230 and external communication interface 240；The dsp processor is digital signal processor (digital
signal processor)。
The input terminal of the analog-digital converter 220 is connect with the pre-amplifier 4, output end successively with dsp processor
230 and external communication interface 240 connect；The analog-digital converter 220 receives the signal of the transmission of the pre-amplifier 4, to letter
Number analog-to-digital conversion is carried out, and the signal after analog-to-digital conversion is sent to dsp processor 230, dsp processor 230 carries out signal
Valid data are demodulated and parsed, valid data are sent to external equipment finally by external communication interface 240.
The input terminal of the digital analog converter 210 is connect with dsp processor 230 and external communication interface 240 successively, output
End is connect with the power amplifier 5；External communication interface 240 receives the raw information that external equipment is sent, by raw information
It is sent to dsp processor 230, dsp processor 230 carries out coding to raw information and modulation obtains digital signal, and number is believed
It number is sent to digital analog converter 210, digital analog converter 210 carries out digital-to-analogue conversion to digital signal, by the simulation after digital-to-analogue conversion
Signal is sent to power amplifier 5 and carries out power amplification, and the analog signal after power amplification is sent to underwater acoustic transducer 1, by
Underwater acoustic transducer 1 is launched.
Further, in certain embodiments, it is provided between the pre-amplifier 4 and the analog-digital converter 220
Low-pass filter, for filtering out noise and interference signal outside band.
Further, in certain embodiments, be provided between the digital analog converter and the power amplifier low pass/
Bandpass filter, for filtering.
Further, with reference to Fig. 3, in certain embodiments, the master control borad 2 further includes arm processor 250, ARM processing
Device 250 is Advanced RISC Machines, is a 32 bit reduced instruction set computers；
The arm processor 250 is connect with the dsp processor 230, the external communication interface 240 respectively.
Further, with reference to Fig. 4, in certain embodiments, the dsp processor 230 includes the modulatedemodulate being connected with each other
Mode transfer block 231 and first communication module 232；
The arm processor 250 includes the network protocol stack module 251 being connected with each other and second communication module 252；
The network protocol stack module 251 is connect with the external communication interface 240；
The second communication module 252 is also connect with the first communication module 232.
Further, in certain embodiments, the network protocol stack module 251 includes：Agreement submodule, interchanger mould
Block and modulation /demodulation driver；
The switch module is connect with the agreement submodule and modulation /demodulation driver respectively；
The modulation /demodulation driver is connect with the modulation /demodulation module 231.
Further, in certain embodiments, the network protocol stack module 251 includes：Agreement submodule, interchanger mould
Block and modulation /demodulation driver；
The switch module is connect with the agreement submodule and modulation /demodulation driver respectively；
The modulation /demodulation driver is communicated to connect with the dsp processor 230.
Further, in certain embodiments, the agreement submodule includes：Mac-layer protocol unit, network layer protocol list
Member, transport layer protocol unit and application layer protocol unit.
Multiple agreements in each protocol element can be carried out at the same time, therefore each protocol element can be envisioned as respectively
From the protocol pool of function.When initializing an agreement submodule, next layer of agreement of its connection is specified.For example, one
Dynamic routing module can confirm that agreements of the UW-Aloha as mac-layer protocol unit.Unlike it is traditional based on can only with it is upper and lower
The layer structure that layer is communicated, one level agreement unit of permission of network protocol stack module 251 passes through with other level agreement units to be exchanged
Machine module direct communication (communication across layers).For example, application layer protocol unit can send message to ask to network layer protocol unit
Information is sought, if network layer protocol unit can handle this message, corresponding response will be made, otherwise will abandon this
Request.
Further, the switch module can receive information from other modules, and forward the information to corresponding reception
Machine, this receiver can be agreement submodules, can also be modulation /demodulation driver.Interchanger mould in network protocol stack module
Other modules other than block are connected to switch module by web socket, and switch module, which serves as, receives client connection
Server, client include agreement submodule and modulation /demodulation driver.In this way, same level agreement unit is multiple
Agreement can be run parallel, and to form different protocol packages, the failure of single agreement is to whole network protocol stack module
Influence is preferably minimized, and an agreement can not interfere other agreements and be replaced or restart, and take into account flexibility and safety
Property.Network protocol stack module realizes that communication across layers, shared drive are initialized by switch module by shared drive, in network
It is shared between protocol stack module, the important parameter information of each level agreement unit and modulation /demodulation driver can be stored.It is stored in altogether
It should be the parameter that those are frequently accessed to enjoy the parameter in memory.For example, module can be by switch module and shared
Memory accesses to ask the signal-tonoise information in modulation /demodulation driver.
Further, in certain embodiments, the dsp processor 230 further includes：
Transceiver toggle switch, the working condition for switching the underwater acoustic transducer 1, the working condition include receiving shape
State and transmission state；
Configuration module, for providing configuration information for the modulation /demodulation module 231；
Algoritic module, for providing algorithm for the modulation /demodulation module 231.
Further, in certain embodiments, the network protocol stack module 251 further includes remote control submodule, institute
Remote control submodule is stated to communicate to connect with the agreement submodule, switch module and modulation /demodulation driver respectively；
The remote control module receives the order that user sends；
The remote control module includes command interpreter (CI), Command Filters (CF) and series of orders processor
(CH)。
The CI takes charge of the explanation order, if not finding syntax error, passes it to CF.The remote control mould
Order in the block follows format identical with general Linux command, usually consists of two parts：Command name and by space-separated
Parameter.If there is space in parameter, parameter must be separated by a pair of of quotation marks.
After the CF receives translated order from CI, the correctness of the order is checked, eliminate to underwater acoustic communication equipment just
Harmful order is often operated, and forwards it to corresponding CH and goes to execute.
Each CH is responsible for an order, and CH is responsible for the order that operation receives.
CI and CF in remote control module can eliminate invalid order.
When being exchanged into line command between different remote control modules, the remote control module for belonging to sender inputs a life
It enables to CI, after CI is explained, is transmitted to CF, order normalizer is transmitted to after CF is filtered, order normalizer unites command format
The remote control module for belonging to recipient is sent to after one, then belong to the CF of the remote control module of recipient to order again into
Row filtering, is finally transmitted to corresponding CH to execute the order.Command format uniformly eliminates redundant space, reduces network flow
Amount.
Underwater acoustic communication equipment provided by the embodiments of the present application has double-core (DSP and ARM cores) processor, and integrated level is high, and
With considerable flexibility and networking function.
When carrying out underwater sound communication using underwater acoustic communication equipment provided in an embodiment of the present invention, the method packet of the underwater sound communication
It includes：Point-to-point Communication Method and group-net communication method；
Further, with reference to Fig. 5, when underwater acoustic communication equipment is in reception state, the Point-to-point Communication Method includes：
Underwater acoustic transducer receives underwater sound signal, and converts underwater sound signal to electric signal；
Pre-amplifier carries out power amplification to the electric signal；
Master control borad handles the electric signal after the power amplification and is sent to external equipment.
Specifically, the master control borad handles the electric signal after the power amplification, including：
Analog-digital converter on the master control borad carries out analog-to-digital conversion to the electric signal after the power amplification, obtains number
Signal；
Dsp processor on the master control borad is demodulated and parsed to obtain valid data to the digital signal；
The valid data are sent to external equipment by the external communication interface on the master control borad.
The Point-to-point Communication Method further includes：After pre-amplifier carries out power amplification to the electric signal, pass through
Low-pass filter is filtered the electric signal after the power amplification, filters out noise and interference signal outside band.
Further, with reference to Fig. 6, when underwater acoustic communication equipment is in transmission state, the Point-to-point Communication Method includes：
Master control borad receives the raw information that external equipment is sent and processing, obtains electric signal；
Power amplifier carries out power amplification to obtained electric signal；
Underwater acoustic transducer converts the electric signal after the power amplification to underwater sound signal and emits.
Specifically, the master control borad receives the raw information that external equipment is sent and processing, including：
External communication interface on the master control borad receives the raw information that external equipment is sent；
Dsp processor on the master control borad is encoded and is modulated to raw information, and digital signal is obtained；
Digital analog converter on the master control borad carries out digital-to-analogue conversion to the digital signal, obtains analog signal, and will
The analog signal is sent to the power amplifier.
The Point-to-point Communication Method further includes：Before the analog signal is sent to the power amplifier, pass through
Low pass/bandpass filter is filtered the analog signal.
Further, with reference to Fig. 7, when the underwater acoustic communication equipment is in transmission state, the group-net communication method packet
It includes：
External communication interface on the master control borad receives the raw information that external equipment is sent；
Network protocol stack module in arm processor on the master control borad compresses the raw information, splits,
Coding, encapsulation process obtain independent data packet；
Dsp processor on the master control borad is modulated to obtain digital signal to the data packet；
The digital signal is converted into analog signal by the digital analog converter on the master control borad；
The power amplifier carries out power amplification to the analog signal；
The analog signal after power amplification is converted to underwater sound signal and emitted by the underwater acoustic transducer.
Further, with reference to Fig. 8, when the underwater acoustic communication equipment is in reception state, the group-net communication method packet
It includes：
Underwater acoustic transducer converts the underwater sound signal of reception to electric signal；
The pre-amplifier carries out power amplification to electric signal；
Electric signal after power amplification is converted into digital signal by the analog-digital converter on the master control borad；
Dsp processor on the master control borad demodulates the digital signal；
Network protocol stack module in arm processor on the master control borad parses the digital signal after demodulation；
The data parsed are sent to external equipment by the external communication interface on the master control borad.
Further, with reference to Fig. 9, the relay communication method of the group-net communication includes：
Underwater acoustic transducer converts the underwater sound signal of reception to electric signal；
The pre-amplifier carries out power amplification to electric signal；
Electric signal after power amplification is converted into digital signal by the analog-digital converter on the master control borad；
Dsp processor on the master control borad demodulates the digital signal；
Network protocol stack module in arm processor on the master control borad parses the digital signal after demodulation,
Then it is encapsulated again, obtains data packet；
Dsp processor on the master control borad is modulated to obtain digital signal to the data packet；
Digital analog converter on the master control borad converts digital signals into analog signal；
The power amplifier carries out power amplification to the analog signal；
The analog signal after power amplification is converted to underwater sound signal and emitted by the underwater acoustic transducer.
It should be noted that herein, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that process, method, article or device including a series of elements include not only those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or device institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including this
There is also other identical elements in the process of element, method, article or device.
It these are only the preferred embodiment of the present invention, be not intended to limit the scope of the invention, it is every to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (12)
1. a kind of underwater acoustic communication equipment, which is characterized in that including：Underwater acoustic transducer, master control borad, pre-amplifier, power amplification
Device and supply unit；
The supply unit is connect with the underwater acoustic transducer, master control borad, pre-amplifier and power amplifier respectively, for supplying
Electricity；
The output end of the underwater acoustic transducer and the input terminal of pre-amplifier connect；The input terminal and work(of the underwater acoustic transducer
The output end of rate amplifier connects；
The master control borad is connect with the input terminal of the output end of the pre-amplifier and power amplifier respectively；
The master control borad, pre-amplifier, power amplifier and supply unit are stacked composition multilayer circuit board stacked structure.
2. underwater acoustic communication equipment according to claim 1, which is characterized in that the master control borad includes digital analog converter, mould
Number converter, dsp processor and external communication interface；
The input terminal of the analog-digital converter is connect with the pre-amplifier output end, the output end of the analog-digital converter with
The dsp processor connection；
The input terminal of the digital analog converter is connect with the dsp processor, the output end of the digital analog converter and the work(
The input terminal of rate amplifier connects；
The dsp processor is also connect with the external communication interface.
3. underwater acoustic communication equipment according to claim 2, which is characterized in that the dsp processor includes modulatedemodulate mode transfer
Block and first communication module；
The modulation /demodulation module is connect with the first communication module；
The modulation /demodulation module is also connect with the analog-digital converter, digital analog converter and external communication interface respectively.
4. underwater acoustic communication equipment according to claim 3, which is characterized in that the master control borad further includes：
Arm processor, the arm processor are connect with the first communication module, the external communication interface respectively.
5. underwater acoustic communication equipment according to claim 4, which is characterized in that the arm processor includes network protocol stack
Module and second communication module；
The network protocol stack module is connect with the second communication module；
The network protocol stack module is also connect with external communication interface；
The second communication module is also connect with the first communication module.
6. underwater acoustic communication equipment according to claim 5, which is characterized in that the network protocol stack module includes：Agreement
Submodule, switch module and modulation /demodulation driver；
The switch module is connect with the agreement submodule and modulation /demodulation driver respectively；
The modulation /demodulation driver is connect with the modulation /demodulation module.
7. a kind of underwater acoustic communication method, it is applied to underwater acoustic communication equipment, which is characterized in that the underwater acoustic communication method includes：Point
Point to-point communication method；
The Point-to-point Communication Method includes：
Underwater acoustic transducer receives underwater sound signal, and converts underwater sound signal to electric signal；
Pre-amplifier carries out power amplification to the electric signal；
Master control borad handles the electric signal after the power amplification and is sent to external equipment；
The Point-to-point Communication Method further includes：
Master control borad receives the raw information that external equipment is sent and processing, obtains electric signal；
Power amplifier carries out power amplification to obtained electric signal；
Underwater acoustic transducer converts the electric signal after the power amplification to underwater sound signal and emits.
8. underwater acoustic communication method according to claim 7, which is characterized in that master control borad is to the telecommunications after the power amplification
It number is handled, including：
Analog-digital converter on the master control borad carries out analog-to-digital conversion to the electric signal after the power amplification, obtains digital letter
Number；
Dsp processor on the master control borad is demodulated and parsed to obtain valid data to the digital signal；
The valid data are sent to external equipment by the external communication interface on the master control borad.
9. underwater acoustic communication method according to claim 7, which is characterized in that master control borad receives the original of external equipment transmission
Information is simultaneously handled, including：
External communication interface on the master control borad receives the raw information that external equipment is sent；
Dsp processor on the master control borad is encoded and is modulated to raw information, and digital signal is obtained；
Digital analog converter on the master control borad carries out digital-to-analogue conversion to the digital signal, obtains analog signal, and will be described
Analog signal is sent to the power amplifier.
10. underwater acoustic communication method according to claim 7, which is characterized in that the underwater acoustic communication method further includes：Networking
Communication means；
The group-net communication method includes：
External communication interface on the master control borad receives the raw information that external equipment is sent；
Network protocol stack module in arm processor on the master control borad is compressed the raw information, is split, is compiled
Code, encapsulation process obtain independent data packet；
Dsp processor on the master control borad is modulated to obtain digital signal to the data packet；
The digital signal is converted into analog signal by the digital analog converter on the master control borad；
The power amplifier carries out power amplification to the analog signal；
The analog signal after power amplification is converted to underwater sound signal and emitted by the underwater acoustic transducer.
11. underwater acoustic communication method according to claim 10, which is characterized in that the group-net communication method further includes：
Underwater acoustic transducer converts the underwater sound signal of reception to electric signal；
The pre-amplifier carries out power amplification to electric signal；
Electric signal after power amplification is converted into digital signal by the analog-digital converter on the master control borad；
Dsp processor on the master control borad demodulates the digital signal；
Network protocol stack module in arm processor on the master control borad parses the digital signal after demodulation；
The data parsed are sent to external equipment by the external communication interface on the master control borad.
12. underwater acoustic communication method according to claim 10, which is characterized in that the group-net communication method further includes：In
After communication means；
The relay communication method includes：
Underwater acoustic transducer converts the underwater sound signal of reception to electric signal；
The pre-amplifier carries out power amplification to electric signal；
Electric signal after power amplification is converted into digital signal by the analog-digital converter on the master control borad；
Dsp processor on the master control borad demodulates the digital signal；
Network protocol stack module in arm processor on the master control borad parses the digital signal after demodulation, then
It is encapsulated again, obtains data packet；
Dsp processor on the master control borad is modulated to obtain digital signal to the data packet；
Digital analog converter on the master control borad converts digital signals into analog signal；
The power amplifier carries out power amplification to the analog signal；
The analog signal after power amplification is converted to underwater sound signal and emitted by the underwater acoustic transducer.
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