With KK-FBPT-S30 buoy as the carrier, the system integrates high sensitivity underwater noise analyzer, hydrophone node/array and other equipment. Through data acquisition and communication technology, acoustic data is transmitted to the cloud platform in real time; The system uses the MEINS marine equipment intelligent networking system as a data management and visualization platform, which supports equipment management, location tracking, data browsing, historical query, data download and visual analysis, etc. Users can easily access, query, download and analyze data.
The application of the system contributes to a better understanding of various sounds and sound sources in the marine environment, including ocean background noise, ocean engineering facility noise, surface ship noise, underwater target radiation noise, marine organism vocalization and acoustic tracking of marine mammals. It is of great significance for protecting marine ecosystems and biodiversity, preventing marine disasters and ensuring maritime security.
Functional Characteristics
Broadband Monitoring of Underwater Noise
The system is equipped with broadband digital hydrophone and noise recorder, and the general monitoring frequency is 20Hz~20kHz (optional 20Hz~160kHz), which can cover all kinds of sounds in the underwater environment.
Acoustic Spectrum is Transmitted in Real Time
Noise recorder can accurately collect the intensity, frequency, time and other data of underwater acoustic signal, and use the communication module to transmit the signal spectrum in real time.

Support Underwater Acoustic Vertical Array
The hydrophone vertical linear array can be selected to support underwater acoustic profile monitoring within 500m depth. Compared with a single node, it has the advantages of high gain and strong directivity.
Distributed Collaborative Networking
In a specific sea area (such as offshore wind farms, marine biological reserves), multiple buoys can be distributed networking, synchronous acoustic data acquisition, the use of underwater sound field comprehensive analysis of acoustic characteristics of the sea area or marine biological tracking.
Supports Multiple Communication Methods
Buoy support a variety of data transmission methods, generally choose Beidou or Iridium communication, in the offshore mobile network coverage area, it can choose 4G communication mode, or choose several communication parallel, effectively ensure the stable return of acoustic data.
Extend Other Parameters
The system adopts an open design, in addition to the noise sensor, it can also carry a variety of modular hydrological and meteorological monitoring equipment, and realize the one-stop observation of sea surface hydrological and meteorological elements.
Each sensor can be customized to customer needs
Sensor | Parameter | Function |
UNAS Single Point Noise Analyzer | Hydrophone Sensitivity | -208dB re 1V/uPa(20Hz~160kHz) high frequency -194dB re 1V/uPa (20Hz~20kHz) general |
Magnification | 0/20/26/30dB adjustable | |
Sampling Rate | 32kHz~512kHz high frequency; 2kHz~128kHz general | |
Resolution Ratio | 24Bit | |
Dynamic Range | ≥105dB | |
Equivalent Self-noise | ≤36dB@1kHz | |
Withstand Pressure Depth | 200m | |
MARS Underwater Acoustic Array Analyzer | Array Element Sensitivity | -196±1.5dB re 1V/uPa(20Hz~20kHz) |
Array Element Spacing | Customizable | |
Number of Array Element | 4~128 unit | |
Phase Equalization | ≤2°@1kHz | |
Magnification | 26dB | |
Self Noise | ≤40dB@1kHz | |
Sampling Channel | 1~32, it can be cascaded | |
Sampling Rate | 16kHz~512kHz | |
Resolution Ratio | 24Bit | |
Dynamic Range | ≥105dB | |
Array Configuration | oil-filled array/solid array | |
Withstand Voltage Depth | 500m | |
Others | Customizable according to requirements |
Specification Parameter
Buoy Body | Size | Diameter: 3.0m; Total height: 6.5m; Draft: about 2.4m |
Weight* | Approx. 1.5t | |
Material | Out shell: CCSB grade steel; Mast: aluminum alloy; Lower bracket: CCSB grade steel | |
Coating | Anticorrosive Paint | |
Anchor | Composition* | Nylon/polypropylene cable + Counterweight/high grip anchor |
Specification | Customized according to the actual application environment | |
Power Supply Life | Type | Solar charging system (photovoltaic panel + controller + battery) |
Photovoltaic Panel | Maximum charging power 480W(80W×6) | |
Storage Battery | Maintenance-free lead-acid battery (Standard capacity 800Ah, can be expanded to 1600Ah) | |
Battery Life | Under normal lighting conditions, the support system lasts one year; Under continuous cloudy conditions, the flight lasts for 15 days | |
Data Acquisition Communication | Gathering | By default, it is updated every 30 minutes. The collection interval can be customized |
Storage | Local SD card, 32GB | |
Communication | Beidou/Iridium Star /4G/HF optional | |
Security and Collision Avoidance | Collision Avoidance Aids | Equipped with AIS transponder, beacon light, lightning rod, angle reflector |
Alarm | Support water leakage alarm, offset alarm, opening alarm, optional marking alarm | |
Cloud Platform | Name | MEINS marine equipment intelligent networking system |
Function | Device management: status query, location tracking Data management: browsing, historical query, download and visual analysis Other features: support customization | |
Access Mode | Internet cloud access (customizable PC local version) | |
*Note: Depending on the equipment and configuration, the weight and size will vary |
Yantai Kekan Ocean Technology Co., Ltd. is a technology-based small and medium-sized enterprise that integrates the researchand production of marine observation and monitoring equipment, marine environmental services,and the development of key supporting systems for marine engineering. Adhering to the spirit of "scientfic management and exploration of the deep sea", it focuses on the research and development of intelligent marine observation and monitoring equipment and the safety guarantee of offshore engineering.
The R&D team of the company is led by Professor You Zajin, an academician of the European Academy of Sciences. He has been engaged in research on ocean dynamics, numerical model construction,and has led projects funded by the Natonal Young Scholars Fund, the Ministry of Sclence and Technology's key R&D project, the National Key Fund, and multiple Australian Key Fund projects.The core personnel of the team also include multiple doctoral and high-end managemert talents in the marine field, with complementary professional backgrounds and a solid foundation for cooperation. They have jointy cariedout muliple related projects/research projects and possess the strength of product design, manufacturing, and sales. Since its establishment, the company has applied for more than 30 patents and softworks, of which 13 have been authorized, possessing exclusive intellectual property rights and strong technical barriers.
The company's main products are intelligent marine environmental element observation and monitoring equipment and high-precision early warning and forecasting system, among which the intelligent observation and monitoring equipment has the function of self-positioning, which can adjust the positioning based on real-time sea conditions and relying on low-power power system; The submarine winch has the advantages of small size, strong traction and good sealing, which can better adapt to the complexity of the seabed work; The high-precision marine hydrological element early warning and prediction system provides wave, tide, storm surge and sediment transport data, solves the problems of unclear physical mechanism and low simulation accuracy of current numerical simulaton, and can provide a solid guarantee for marine enginering.
Kekan Ocean is a creative and dynamic team. We are committed to providing more users at home and abroad with the best quality products and services.



Q: Are you a manufacturer?
Yes, our company independently manufactures, research and develop a variety of technical products.
Q: Do you offer customized services?
A: Yes, we offer a variety of products and services according to different needs of customers.
Q: Can we order one set as sample?
A: Yes, the minimum order quantity is one set.
Q: What's the order delivery time?
A: The order delivery times vary according to the type and quantity of the product. Some products are in stock, other products need about 1 month in the off-season, 1-3 months in the peak season. Generally, it takes about 15-20 days after the order is ready.
Q: Why choose Yantai Kekan Ocean Technology Co., Ltd?
A: Our company has the independent R&D team to provide high-quality products. We can adjust the product parameters and offer customized services according to different needs. We also provide reliable after-sales service.