CN221173607U - Underwater glider acoustic holographic data acquisition equipment - Google Patents
Underwater glider acoustic holographic data acquisition equipment Download PDFInfo
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- CN221173607U CN221173607U CN202323161300.1U CN202323161300U CN221173607U CN 221173607 U CN221173607 U CN 221173607U CN 202323161300 U CN202323161300 U CN 202323161300U CN 221173607 U CN221173607 U CN 221173607U
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- holographic data
- acquisition device
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Abstract
The utility model relates to an underwater glider acoustic holographic data acquisition device, which comprises: a plurality of parallel single-ended input ports configured to access acquired data of the hydrophone; the signal processing component is connected with each single-ended input port and is configured to conduct differential, filtering and A/D conversion processing on acquired data; and the parallel port is configured to be respectively connected with a plurality of output ends of the signal processing component and an external master controller. The underwater glider acoustic holographic data acquisition equipment provided by the utility model is provided with a plurality of parallel single-ended input ports, can support the data input of a plurality of hydrophones, so that the acquired signals of the plurality of hydrophones are acquired in water at each depth simultaneously and comprise the processing of difference, filtering and AD conversion, the stability and the anti-interference performance of the signals are improved, the error signals are reduced, and a foundation is laid for obtaining more comprehensive and accurate acoustic holographic data.
Description
Technical Field
The utility model relates to the technical field of underwater acoustic data acquisition, in particular to underwater glider acoustic holographic data acquisition equipment.
Background
The conventional acoustic data acquisition device is difficult to cope with signal input of a plurality of signal sensors such as hydrophones in the process of acquiring acoustic holographic data, requires a great deal of manpower, material resources and time cost, and has the problems of low data precision, non-real time, complex operation and the like.
Disclosure of utility model
First, the technical problem to be solved
In view of the above-mentioned drawbacks and deficiencies of the prior art, the present utility model provides an underwater glider acoustic holographic data acquisition device, which solves the technical problem that the conventional acoustic data acquisition device is difficult to cope with signal input of a plurality of signal sensors such as hydrophones in the process of acquiring acoustic holographic data.
(II) technical scheme
In order to achieve the above purpose, the main technical scheme adopted by the utility model comprises the following steps:
In a first aspect, an embodiment of the present utility model provides an acoustic holographic data acquisition apparatus for an underwater glider, including:
A plurality of parallel single-ended input ports configured to access acquired data of the hydrophone;
The signal processing component is connected with each single-ended input port and is configured to conduct differential, filtering and A/D conversion processing on acquired data;
And the parallel port is configured to be respectively connected with a plurality of output ends of the signal processing component and an external master controller.
Optionally, the signal processing component comprises: the single-ended to differential module, the filter and the A/D conversion chip are connected in sequence.
Alternatively, the single-ended-to-differential module employs a voltage feedback amplifier.
Optionally, the filter employs a low pass filter.
Alternatively, the a/D conversion chip employs a 4-channel 24-bit synchronous sampling chip.
Optionally, each channel of the a/D conversion chip integrates a sigma-delta modulator and a digital filter.
Optionally, the plurality of parallel single-ended input ports, the signal processing component, and the parallel ports are all disposed on a circuit board.
Optionally, the circuit board is a cylinder.
Optionally, the circuit board is provided on an underwater glider provided with a hydrophone.
(III) beneficial effects
The beneficial effects of the utility model are as follows: the underwater glider acoustic holographic data acquisition equipment provided by the utility model is provided with a plurality of parallel single-ended input ports, can support the data input of a plurality of hydrophones, so that the acquisition signals of the plurality of hydrophones are acquired in water at each depth simultaneously and comprise the processing of difference, filtering and AD conversion, the stability and the anti-interference performance of the signals are improved, the error signals are reduced, and a foundation is laid for obtaining more comprehensive and accurate acoustic holographic data.
Drawings
FIG. 1 is a schematic diagram of the composition of an underwater glider acoustic holographic data acquisition device provided by the utility model;
FIG. 2 is a schematic block diagram of a single-ended slip differential circuit of an underwater glider acoustic holographic data acquisition device provided by the utility model;
fig. 3 is a schematic diagram of a PCB board of an underwater glider acoustic holographic data acquisition device provided by the utility model.
Detailed Description
The utility model will be better explained for understanding by referring to the following detailed description of the embodiments in conjunction with the accompanying drawings.
As shown in fig. 1, an acoustic holographic data acquisition device for an underwater glider according to an embodiment of the present utility model includes: a plurality of parallel single-ended input ports configured to access acquired data of the hydrophone; the signal processing component is connected with each single-ended input port and is configured to conduct differential, filtering and A/D conversion processing on acquired data; and the parallel port is configured to be respectively connected with a plurality of output ends of the signal processing component and an external master controller.
The underwater glider acoustic holographic data acquisition equipment provided by the utility model is provided with a plurality of parallel single-ended input ports, can support the data input of a plurality of hydrophones, so that the acquisition signals of the plurality of hydrophones are acquired in water at each depth simultaneously and comprise the processing of difference, filtering and AD conversion, the stability and the anti-interference performance of the signals are improved, the error signals are reduced, and a foundation is laid for obtaining more comprehensive and accurate acoustic holographic data.
In order to better understand the above technical solution, exemplary embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art.
First, the signal processing component includes: the single-ended to differential module, the filter and the A/D conversion chip are connected in sequence.
The signal processing assembly performs three-stage processing on signals transmitted by the hydrophone, wherein the first-stage processing is differential conversion processing based on a single-end rotating differential module, the stability and anti-interference performance of the signals are improved, the second-stage processing is filtering processing of a filter, and the third-stage processing is analog-to-digital conversion processing of an A/D conversion chip.
Furthermore, the single-ended-to-differential module adopts voltage feedback type amplifiers with dual channels, low noise and rail-to-rail input and output, as shown in fig. 2, the single-ended-to-differential module is connected with a single-ended signal Vin and a common-mode signal Vcm through the positive input end of one amplifier, the positive input end of the other amplifier is connected with the common-mode signal Vcm, and the two amplifiers are complemented to realize differential amplification, thereby playing roles of improving the gain of the differential signals and inhibiting the common-mode noise, and if necessary, the feedback resistors RF1 and RF2 in the circuit can be adjusted, so that the gain of 10V/V can be realized at maximum.
And, the filter adopts a low-pass filter, and performs filtering processing.
Furthermore, the AD conversion chip adopts a 4-channel 24-bit synchronous sampling AD conversion chip, can integrate a sigma-delta modulator and a digital filter for each channel, supports synchronous sampling of alternating current and direct current signals, and has the following advantages and characteristics:
(1) 4-way synchronous sampling, 24-bit sampling.
(2) The sample rate is maximally supported by 256kSps.
(3) Dynamic range: 108dB.
(4) Programmable input bandwidth/sampling rate.
(5) Selectable power consumption, speed and input Bandwidth (BW) mode, at highest speed, power consumption per channel does not exceed 51.5mW.
In addition, the underwater glider acoustic holographic data acquisition device provided by the utility model further comprises: the circuit board is provided with a plurality of parallel single-ended input ports, signal processing components and parallel ports. Preferably, as shown in fig. 3, in order to reduce the space occupied by the collection board, the PCB board adopts a cylindrical design.
Therefore, the circuit board is provided on an underwater glider provided with a hydrophone. Wherein the parameters of the hydrophone include: frequency: 20 Hz-10 kHz, amplitude range: -400mV to +400mV, resolution: not greater than 10uV.
In summary, the utility model provides an underwater glider acoustic holographic data acquisition device, which specifically comprises a plurality of parallel single-end input ports, a signal processing assembly, a four-channel 24-bit synchronous acquisition AD conversion chip and parallel ports, wherein the underwater glider acoustic holographic data acquisition device is applied to an underwater glider with a hydrophone and is used for acquiring acoustic holographic data of the underwater glider and transmitting the acquired acoustic holographic data to an external master controller for further processing and analysis.
Therefore, the underwater glider acoustic holographic data acquisition equipment has advantages over the prior art in the aspect of the concurrence of multiple acquisition channels and the anti-interference of signals, and has certain practical popularization significance.
Since the system/device described in the foregoing embodiments of the present utility model is a system/device used for implementing the method of the foregoing embodiments of the present utility model, those skilled in the art will be able to understand the specific structure and modification of the system/device based on the method of the foregoing embodiments of the present utility model, and thus will not be described in detail herein. All systems/devices used in the methods of the above embodiments of the present utility model are within the scope of the present utility model.
It will be appreciated by those skilled in the art that embodiments of the present utility model may be provided as a method, system, or computer program product. Accordingly, the present utility model may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present utility model may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present utility model is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the utility model. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions.
It should be noted that in the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The utility model may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The use of the terms first, second, third, etc. are for convenience of description only and do not denote any order. These terms may be understood as part of the component name.
Furthermore, it should be noted that in the description of the present specification, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with the embodiment or example being included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
While preferred embodiments of the present utility model have been described, additional variations and modifications in those embodiments may occur to those skilled in the art upon learning the basic inventive concepts. Therefore, the appended claims should be construed to include preferred embodiments and all such variations and modifications as fall within the scope of the utility model.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, the present utility model should also include such modifications and variations provided that they come within the scope of the following claims and their equivalents.
Claims (9)
1. An underwater glider acoustic holographic data acquisition device, comprising:
A plurality of parallel single-ended input ports configured to access acquired data of the hydrophone;
The signal processing component is connected with each single-ended input port and is configured to conduct differential, filtering and A/D conversion processing on acquired data;
And the parallel port is configured to be respectively connected with a plurality of output ends of the signal processing component and an external master controller.
2. The underwater glider acoustic holographic data acquisition device of claim 1, wherein the signal processing assembly comprises: the single-ended to differential module, the filter and the A/D conversion chip are connected in sequence.
3. The underwater glider acoustic holographic data acquisition device of claim 2, wherein the single-ended to differential module employs a voltage feedback amplifier.
4. An underwater glider acoustic holographic data acquisition device as claimed in claim 2 in which the filter is a low pass filter.
5. The underwater glider acoustic holographic data acquisition device of claim 2, wherein the a/D conversion chip employs a 4-channel 24-bit synchronous sampling chip.
6. An underwater glider acoustic holographic data acquisition device as in claim 5, in which each channel of the a/D conversion chip integrates a sigma delta modulator and a digital filter.
7. An underwater glider acoustic holographic data acquisition device as claimed in any of claims 1 to 6, in which a plurality of parallel single ended input ports, signal processing components and parallel ports are provided on a circuit board.
8. The underwater glider acoustic holographic data acquisition device of claim 7, wherein the circuit board is cylindrical.
9. The underwater glider acoustic holographic data acquisition device of claim 7, wherein the circuit board is disposed on an underwater glider having a hydrophone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323161300.1U CN221173607U (en) | 2023-11-23 | 2023-11-23 | Underwater glider acoustic holographic data acquisition equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323161300.1U CN221173607U (en) | 2023-11-23 | 2023-11-23 | Underwater glider acoustic holographic data acquisition equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221173607U true CN221173607U (en) | 2024-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323161300.1U Active CN221173607U (en) | 2023-11-23 | 2023-11-23 | Underwater glider acoustic holographic data acquisition equipment |
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| CN (1) | CN221173607U (en) |
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2023
- 2023-11-23 CN CN202323161300.1U patent/CN221173607U/en active Active
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