CN-224211221-U - Wireless transmission's simple and easy buoy device of underwater sound signal collection

CN224211221UCN 224211221 UCN224211221 UCN 224211221UCN-224211221-U

Abstract

The utility model relates to the technical field of underwater detection, and discloses a wireless transmission underwater sound signal acquisition simple buoy device which comprises a floating platform floating on the water surface, wherein a solar panel supported by a fixed support is arranged on the floating platform, a waterproof box is arranged on the top surface of the floating platform, a signal acquisition module and a power supply module are arranged in the waterproof box, the signal acquisition module is electrically connected with a submerged hydrophone, a plumb for stabilizing the floating platform is arranged below the floating platform, the signal acquisition module is used for wirelessly transmitting underwater sound data acquired by the hydrophone to a far end after being stored, the solar panel charges the power supply module, and the power supply module supplies power for the signal acquisition module. The utility model adopts the FPGA and ADC architecture, and the ADC is driven in parallel to optimize the sampling rate, so that the data throughput can be improved, and the multichannel acquisition can be realized.

Inventors

LIU GUANGYU
YU GUOQING
YANG YANTING
ZHOU WEIYUN
SUN XIUGUI

Assignees

大理大学

Dates

Publication Date: 20260508
Application Date: 20250515

Claims (6)

1. A simple buoy device for collecting underwater acoustic signals through wireless transmission is characterized by comprising a floating platform floating on a water surface, a solar panel supported by a fixed support is arranged on the floating platform, a waterproof box is arranged on the top surface of the floating platform, a signal collecting module and a power supply module are arranged in the waterproof box, the signal collecting module is electrically connected with a submerged hydrophone, a plumb for stabilizing the floating platform is arranged below the floating platform, the signal collecting module is used for wirelessly transmitting underwater acoustic data collected by the hydrophone to a far end after being stored, the solar panel charges the power supply module, and the power supply module supplies power for the signal collecting module.
2. The device of claim 1, wherein the signal acquisition module comprises an ADC acquisition module, an FPGA module, a TTL-to-RS 232 module and a wireless transmission module, wherein the hydrophone acquires the underwater sound data, the underwater sound data is subjected to analog-to-digital conversion through the ADC acquisition module, buffered through DDR3 deployed on the FPGA module, then transmitted to the TTL-to-RS 232 module through an IO port, connected to the data transmission module through an RS232 bus protocol, and transmitted to a far end through the data transmission module.
3. The underwater sound signal collection simple buoy device of claim 2, wherein the FPGA module comprises an ADC_driver, a DDR_port, a State_control, a Uart_rx and a Uart_tx, wherein the ADC_driver is used for driving the ADC collection module to collect data in parallel, the DDR_port is used for driving DDR3 cache data to realize asynchronous receiving and sending, the State_control is used for controlling working states of the ADC_driver, the DDR_port, the Uart_rx and the Uart_tx, and the Uart_rx and the Uart_tx are driven through receiving and sending time sequences of a serial RS232 protocol respectively.
4. The underwater sound signal collection simple buoy device of claim 2, wherein the data transmission module is selected from an Ethernet module or a wireless transmission module.
5. The apparatus of claim 4, wherein the wireless transmission module is selected from the group consisting of Lora wireless modules.
6. The device for collecting and simply floating underwater sound signals by wireless transmission according to any one of claims 2-5, wherein the power supply module comprises a battery and a voltage division module, the battery outputs 12V power to the voltage division module, and the voltage division module outputs 3.3V, 5V and 10V to supply power to the ADC collecting module, the FPGA module and the wireless transmission module respectively.

Description

Wireless transmission's simple and easy buoy device of underwater sound signal collection Technical Field The utility model relates to the technical field of underwater detection, in particular to a simple buoy device for collecting underwater acoustic signals through wireless transmission. Background In the fields of ocean exploration, underwater communication, resource exploration and the like, underwater acoustic data acquisition is required. With the rapid development of underwater detection technology, the underwater sound data acquisition system needs to realize balance among high-precision sampling, low-power transmission and complex environment adaptability. The prior art still faces some core bottlenecks in the field of underwater data acquisition, the traditional scheme at the data acquisition end mostly adopts an MCU and low-speed ADC architecture, the sampling rate is generally lower than 100kSPS, the number of channels is limited while the high-frequency underwater acoustic signal acquisition is difficult to meet, the underwater wired transmission mode is high in cost and difficult to network, the sampling rate is low, and the number of channels is small. The existing underwater communication technology at the data transmission end has obvious defects in a single transmission mode of underwater sound and electromagnetic waves, the effective distance transmission is only in the level of kilometers and delayed by the influence of multipath effect, frequency dispersion and seawater absorbability by relying on sound waves, the underwater sonar equipment is high in power consumption, the maintenance cost is extremely high by means of a large-capacity battery and a cable if long-term monitoring of underwater data is realized, the sampling rate is optimized by adopting an FPGA (field programmable gate array) in combination with an ADC (analog to digital converter) framework, the data transmission is combined with the communication of the underwater sound electromagnetic waves by adopting an RS232 protocol in combination with the transmission of a Lora wireless module, the power consumption is reduced, the transmission distance is ensured, the networking condition is optimized, and the long-term monitoring of underwater sound signals is facilitated. Disclosure of Invention In order to overcome or alleviate one or more of the technical problems, the utility model aims to provide a simple buoy device for collecting underwater acoustic signals through wireless transmission, which adopts an FPGA and ADC architecture to drive an ADC in parallel to optimize the sampling rate, thereby not only improving the data throughput, but also realizing multi-channel collection, and solving the problems that the underwater data collection with high sampling rate, long-distance wireless transmission and low power consumption cannot be realized. Compared with the traditional underwater communication mode, the utility model adopts the Lora wireless module to realize data wireless transmission, solves the contradiction between long distance and low power consumption, has stronger self-networking flexibility and lower cost, and is more suitable for long-term deployment and multipoint collaborative ocean monitoring and lake monitoring. The utility model provides the following technical scheme: A simple buoy device for collecting underwater acoustic signals through wireless transmission comprises a floating platform floating on the water surface, a solar panel supported by a fixed support is arranged on the floating platform, a waterproof box is arranged on the top surface of the floating platform, a signal collecting module and a power supply module are arranged in the waterproof box, the signal collecting module is electrically connected with a hydrophone sinking under water, a plumb for stabilizing the floating platform is arranged below the floating platform, the signal collecting module is used for wirelessly transmitting underwater acoustic data collected by the hydrophone to a far end after being stored, the solar panel charges the power supply module, and the power supply module supplies power for the signal collecting module. Preferably, the signal acquisition module comprises an ADC acquisition module, an FPGA module, a TTL-to-RS 232 module and a wireless transmission module, wherein the underwater sound data acquired by the hydrophone is subjected to analog-to-digital conversion through the ADC acquisition module, is buffered through DDR3 deployed on the FPGA module, is then transmitted to the TTL-to-RS 232 module through an IO port, is connected to the data transmission module through an RS232 bus protocol, and is transmitted to a far end through the data transmission module. Preferably, the FPGQ module includes an adc_driver, a ddr_port, a state_control, a uart_rx, and a uart_tx, where the adc_driver is configured to drive the ADC acquisition module to implement parallel data acquisition, the ddr_port is configure