Unmanned underwater vehicles (UUVs) are core equipment for deep-sea resource exploration, seabed topography mapping, and military reconnaissance. Their operational capabilities are highly dependent on the energy system. Traditional submersibles need to return to the mother ship or shore for charging, resulting in over 90% of the time spent on round-trip voyages and extremely low mission efficiency. The wireless charging solution for unmanned submersibles launched by WIRELESSPT, through the "underwater base station + autonomous docking + intelligent energy replenishment" mode, has increased the effective operation time of submersibles by 300%, redefining the "spatiotemporal boundary" of deep-sea exploration.

Industry Dilemma: The "Endurance Curse" of Submersibles

According to a certain Marine scientific research data, the single diving operation time of a traditional AUV (Autonomous Underwater Vehicle) is usually 2,448 hours, among which the time spent on charging accounts for more than 60%. Take the 3,000-meter deep-sea exploration as an example. The submersible needs to consume 15% of its battery capacity for each round trip to the mother ship, which seriously restricts the exploration range and the amount of data collected. In addition, manual recycling and charging carry operational risks and may even lead to the loss of equipment in harsh sea conditions.

The Shandong-Chongqing Plan: Building a "trinity" supply system

The wireless charging solution for the WIRELESSPT unmanned submersible consists of three core components:

1. Deep-sea charging base station: It adopts a bottom-sitting or suspended design, equipped with a pressure-resistant cabin (at a water depth of 6,000 meters) and a hybrid power supply system of solar energy and energy storage batteries, enabling long-term deployment (≥2 years).

2. Autonomous docking system: The submersible is equipped with a sonar positioning module and an electromagnetic guidance device, achieving centimeter-level positioning within a distance of 100 meters. The entire docking process is fully autonomous, with a success rate of over 99%.

3. Intelligent energy management Platform: Remote monitoring is achieved through satellite communication, supporting time-of-use charging scheduling for multiple underwater vehicles. Combined with battery health (SOH) analysis, the charging curve is optimized to extend battery life.

Technical parameters: Hardcore indicators support deep-sea operations

Charging power: Adjustable from 1KW to 5KW to meet the needs of submersibles of different tonnages.

Transmission efficiency: The efficiency at a distance of 30cm underwater is ≥85%, meeting the IEC 619801:2021 standard.

Connection time: Less than 5 minutes from positioning to starting charging. It will automatically disengage when fully charged.

Environmental adaptability: Operating temperature range: 2℃ to 45℃, salinity tolerance: 3040‰, water flow velocity resistance: 1.2m/s.

Typical case: Pipeline Inspection Project for Oil and gas fields in the South China Sea

In a certain deep-sea oil and gas field pipeline inspection project, the client adopted two AUVs equipped with the LuYu wireless charging solution, in combination with one submarine charging base station, to achieve continuous monitoring of 200 kilometers of pipelines. Compared with the traditional homework mode:

Operation cycle: Shortened from 15 days per time to 3 days per time;

Data volume: The daily defect detection data has been increased from 500 groups to 2,000 groups.

Comprehensive cost: The leasing cost of the mother ship has been reduced by 70%, and the labor cost has been reduced by 80%.

Future upgrade: Evolving towards the "Energy Internet"

WIRELESSPT is developing the next-generation "underwater energy Internet" system, planning to interconnect charging base stations with the seabed observation network and underwater sensor nodes to achieve two-way transmission of energy and data. The director of the company's Deep-sea Technology Research Institute stated: "Future deep-sea operations will adopt a collaborative model of 'submersible clusters + distributed energy + cloud platforms'. Our goal is to enable unmanned submersibles to act like' deep-sea couriers', independently completing tasks and replenishing energy, truly achieving continuous exploration of the deep sea." "