CN207588873U - A kind of underwater sound communication processing module - Google Patents
A kind of underwater sound communication processing module Download PDFInfo
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- CN207588873U CN207588873U CN201721358172.1U CN201721358172U CN207588873U CN 207588873 U CN207588873 U CN 207588873U CN 201721358172 U CN201721358172 U CN 201721358172U CN 207588873 U CN207588873 U CN 207588873U
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Abstract
The utility model provides a kind of underwater sound communication processing module, including being mainly made of shielding case and signal processing circuit, the shielding case is covered in the front of signal processing circuit board, the both ends of shielding case side are respectively equipped with spanner, heat-conducting block is equipped in shielding case, the heat-conducting block is in contact with the processor in signal processing circuit by heat conductive pad.The utility model shielding case side is each up and down, and there are one spanners, facilitate the plug of communication processing circuit；There are one radiating block in shielding case, for the heat dissipation of signal processor；Shielding case plays a dual role of shielding noise and heat dissipation.
Description
Technical field
The utility model belongs to technical field of underwater acoustic communication, and in particular to a kind of underwater sound communication processing module.
Background technology
Sound wave is the known media that can uniquely carry out remote information transmission under water, along with ocean development activity
Increasing and Military Application needs, underwater sound communication are increasingly valued by people, and application includes speech underwater and leads to
Letter, the telecommand transmission of underwater robot and offshore platform, transmission of sea floor exploration data and image etc., with business application
It is extensive, the commercial value of underwater sound communication highlights.
The underwater acoustic receiver of early stage is substantially amplified received signal, is shown or listened to after detection, does not have
Have or seldom use signal processing technology.On the one hand it is because people recognize not the difference of Underwater Acoustic Environment and wireless radio wave environment
Foot, causes the signal processing technology successfully used in radar and radio communication that cannot successfully be answered in underwater sound communication
With.On the other hand, the signal processing method having been developed, it is difficult to be realized or realized with analog circuit and is excessively complicated.With micro-
The appearance of processor and new signal processor so that many to need to carry out being implemented as the signal processing method of a large amount of operations
It may.
Utility model content
The utility model is related to a kind of underwater sound communication processing module, which can realize quick heat dissipation, and operation side
Just.
The technical scheme for implementing the utility model is as follows：
A kind of underwater sound communication processing module, including being mainly made of shielding case and signal processing circuit, the shielding covers
It covers in the front of signal processing circuit board, the both ends of shielding case side are respectively equipped with spanner, heat-conducting block is equipped in shielding case, described
Heat-conducting block is in contact with the processor in signal processing circuit by heat conductive pad.
Further, signal processing circuit described in the utility model include power circuit, controller, processor, memory,
CODEC circuits and agc circuit
Power circuit provides required power supply for other modules for the signal processing circuit；
Controller, for controlling the state of its peripheral circuit；
Processor is modulated demodulation, digital filtering, at Fast Fourier Transform (FFT) for the digital audio and video signals to reception
It is exported after reason；
Memory for storing and running the control software of controller, stores and runs the processing software of processor；
CODEC circuits, for the analog audio signal that agc circuit inputs to be converted to digital signal, and processor is defeated
The digital audio and video signals gone out are converted to analog signal；
Agc circuit after externally input analog audio signal is carried out dynamic range compression, exports and gives CODEC moulds
Block；
Further, controller described in the utility model selects the S3C2440A chips of Samsung, and the processor is adopted
With the TMS320C6713BGDP chips of TI companies, the memory portion includes storing the Flash of program and for journey
The SDRAM of sort run.
Further, the utility model further includes RS485 remote data transmissions circuit, level shifting circuit and output driving electricity
Road, for mutually being communicated between host computer.
Advantageous effect
The utility model shielding case side is each up and down, and there are one spanners, facilitate the plug of signal processing circuit；In shielding case
There are one radiating block, for the heat dissipation of signal processor；Shielding case plays a dual role of shielding noise and heat dissipation.
The utility model signal processing circuit is realized simply, has been used two kinds of devices of ARM and DSP, has been played respective excellent
Gesture, and be easily achieved.
Description of the drawings
Fig. 1 is the outside schematic diagram of the utility model shielding case；
Fig. 2 is the utility model shielding case schematic internal view；
Fig. 3 is the schematic diagram of the utility model signal processing circuit.
Specific embodiment
It elaborates below in conjunction with the accompanying drawings to the embodiment of the utility model.
A kind of underwater sound communication processing module of the utility model, is mainly made of shielding case and signal processing circuit, such as Fig. 1-2
It is shown：
The shielding case 1 is covered in the front of signal processing circuit board, plays the role of shielding and heat dissipation, shielding case side
Both ends be respectively equipped with spanner 2, play the role of facilitating that signal processing module is promoted card slot and pull-out；It is equipped with and leads in shielding case
Heat block 3 is that (processor) signal processing chip in one piece of protrusion, with signal processing circuit on shielding case passes through heat conductive pad phase
Contact leads the heat that signal processing chip generates on shielding case, while shielding case also acts as the effect of shielding noise.
Since the main task of Underwater acoustic signal processing is in the case of background interference, samples, carry out to underwater sound field space-time
Room and time converts, to improve the ability of detection desired signal, so generally needing to do on digital signal processor quick
The complicated algorithms such as Fourier transformation (FFT), digital filter, digital beam froming, this is just to the processing energy of signal processing platform
Power proposes certain requirement.Its major function includes two aspects：First, controller, as input IO detections, output state controls,
And data communication function uses；Second is that signal processor, as modulation and demodulation algorithm, digital filtering algorithm, fast Fourier
The complex calculations functions such as transformation use.
As shown in figure 3, preferably, the utility model signal processing circuit is mainly by power circuit, control chip
S3C2440A, digital signal processing chip TMS320C6713, NAND FLASH circuits, SDRAM circuits, NOR FLASH circuits,
RS485 remote data transmissions circuit, 3.3V-5V level shifting circuits, output driving circuit, capacitor filtering resistance pull-up circuit, CODEC
Circuit and agc circuit.Wherein
Power circuit, for giving control chip S3C2440A and digital signal processing chip TMS320C6713 power supplies, specifically
For 5V voltages are converted to 1.4V, 1.3V and 3.3V by power circuit, and wherein 1.4V and 3.3V are to digital signal processing chip
TMS320C6713 powers, and 1.3V and 3.3V give the S3C2440A power supplies of control chip.
Chip S3C2440A is controlled, is controlled for detection panel on off state and to peripheral circuit state.Connection
To digital signal processing chip TMS320C6713, for controlling which kind of signal processing algorithm TMS320C6713 enables；It is connected to
RS485 remote data transmission circuits, for receiving host computer instruction and uploading oneself state to host computer；It is connected to 3.3V-5V level
Output control level is converted to 5V by conversion circuit by 3.3V；Be connected to capacitor filtering resistance pull-up circuit, by incoming level into
Row filters laggard line level detection, and judges which kind of state be currently at.
Digital signal processing chip TMS320C6713, connection CODEC chip are used to the audio signal of acquisition being modulated
Demodulation, digital filtering, Fast Fourier Transform (FFT), and pass through CODEC chips and be converted to analog signal and export again；Connection control chip
S3C2440A receives the order which kind of signal processing algorithm its control enables.
NAND FLASH circuits, connection control chip S3C2440A, for storing its control software.
SDRAM circuits, connection control chip S3C2440A, for running its control software.
NOR FLASH circuits connect digital signal processing chip TMS320C6713, for storing its signal processing software.
RS485 remote data transmission circuits, connection control chip S3C2440A are turned the instruction that need to be uploaded by 3.3V Transistor-Transistor Logic levels
RS485 level is changed to, and is exported to host computer, the RS485 level commands received by host computer are converted into 3.3V TTL electricity
It is flat.
3.3V-5V level shifting circuits, connection control chip S3C2440A, the control signal that will be exported is by 3.3V TTL
Level conversion is 5V Transistor-Transistor Logic levels.
Output driving circuit connects 3.3V-5V level shifting circuits, is realized by buffer, drive is provided for 5V Transistor-Transistor Logic levels
Kinetic force.
Capacitor filtering resistance pull-up circuit, connection control chip S3C2440A, by externally input panel-switch signal into
It is exported after row filtering and resistance pull-up to S3C2440A.
CODEC circuits connect digital signal processing chip TMS320C6713, and inside is made of AD/DA, and function is will be outer
The analog audio signal of portion's input is converted to digital signal, and the TMS320C6713 digital audio and video signals exported are converted to mould
Intend signal.
Agc circuit, connect CODEC circuits, function be by externally input analog signal carry out dynamic range compression after, it is defeated
Go out and carry out A/D conversions to CODEC circuits.
To sum up, the signal stream handled by signal processing circuit is specific as follows including three：
With host computer signal of communication stream, complete machine working condition input detection and output control signal stream, Audio Signal Processing
Signal stream.
Host computer signal of communication stream, it is long-range that workflow is that PC control data through corresponding connectors enter RS485
Number conducts electricity roads, by RS485 level conversions to be entered after 3.3V Transistor-Transistor Logic levels in control chip S3C2440A, by control software into
Generation is sent to the instruction of host computer after row branch process, this instruction is sent to RS485 remote data transmissions circuit by 3.3V TTL electricity
Flat turn is changed to RS485 level, and is sent to host computer.
Complete machine working condition input detection is input to capacitor filtering electricity with output control signal stream, panel-switch status signal
Pull-up circuit is hindered, 3.3V Transistor-Transistor Logic levels are converted to after input signal is filtered and is pulled up, are input to control chip
Level detection is carried out in S3C2440A, and judges which kind of working condition current hosts are in, and passes through and controls chip S3C2440A
Control IO output 3.3V TTL control level signals, this 3.3V control signals are input to 3.3V-5V level shifting circuits and turn
5V control signals are changed to, 5V control signals are output to output driving circuit, are exported after improving driving force by corresponding connectors
To peripheral actuator.
Audio Signal Processing signal stream, analog audio signal enter agc circuit by corresponding input interface and carry out dynamic range
Compression, the audio analog signals of output enter CODEC circuits and carry out A/D conversions, and transformed digital audio and video signals are sent to
After digital signal processing chip TMS320C6713 carries out digital filtering, demodulation, the processing of FFT scheduling algorithms, it is then forwarded to CODEC electricity
Road carries out D/A conversions, is reduced to the analog audio signal after demodulation and is output to the corresponding interface.
In conclusion the above is only the preferred embodiments of the present utility model only, it is not intended to limit the utility model
Protection domain.Within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should all wrap
Containing being within the protection scope of the utility model.
Claims (4)
1. a kind of underwater sound communication processing module, which is characterized in that be mainly made of shielding case and signal processing circuit, the shielding
Cover (1) is covered in the front of signal processing circuit, and the both ends of shielding case side are respectively equipped with spanner (2), are equipped with and lead in shielding case
Heat block (3), the heat-conducting block (3) are in contact with the processor in signal processing circuit by heat conductive pad.
2. underwater sound communication processing module according to claim 1, which is characterized in that the signal processing circuit includes power supply electricity
Road, controller, processor, memory, CODEC circuits and agc circuit
Power circuit provides required power supply for other modules for the signal processing circuit；
Controller, for controlling the state of its peripheral circuit；
Processor, after being modulated demodulation, digital filtering, Fast Fourier Transform (FFT) processing for the digital audio and video signals to reception
Output；
Memory for storing and running the control software of controller, stores and runs the processing software of processor；
CODEC circuits, for the analog audio signal that agc circuit inputs to be converted to digital signal, and processor is exported
Digital audio and video signals are converted to analog signal；
Agc circuit after externally input analog audio signal is carried out dynamic range compression, exports and gives CODEC circuits.
3. underwater sound communication processing module according to claim 2, which is characterized in that the controller selects Samsung
S3C2440A chips, the processor use the TMS320C6713BGDP chips of TI companies, and the memory portion includes being used for
Store the Flash and the SDRAM for program operation of program.
4. underwater sound communication processing module according to claim 2, which is characterized in that further include RS485 remote data transmissions circuit, electricity
Flat conversion circuit and output driving circuit, for mutually being communicated between host computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721358172.1U CN207588873U (en) | 2017-10-20 | 2017-10-20 | A kind of underwater sound communication processing module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721358172.1U CN207588873U (en) | 2017-10-20 | 2017-10-20 | A kind of underwater sound communication processing module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207588873U true CN207588873U (en) | 2018-07-06 |
Family
ID=62729125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721358172.1U Active CN207588873U (en) | 2017-10-20 | 2017-10-20 | A kind of underwater sound communication processing module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207588873U (en) |
-
2017
- 2017-10-20 CN CN201721358172.1U patent/CN207588873U/en active Active
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