Underwater exploration innovation

Underwater exploration is not only time-consuming, but is often very dangerous —— life-threatening.

But that is changing rapidly with the development of underwater robotics (ROV) technology.

VideoRay Is a leader in underwater ROV, whose differentiated product line can quickly adapt to the most difficult underwater tasks.

Their advanced systems and proprietary modular design methods help them quickly configure and deploy ROVs to customized tasks.

From mine confrontation and underwater search and rescue to port security surveillance, the VideoRay ROV is helping to achieve results faster and more safely.

Design flexibility and high-density requirements

The VideoRay modular design method provides unprecedented high flexibility for the rapid design of ROV, which can fully meet the customized task requirements. To provide the best performance for each task, a highly adaptable modular power supply system is needed to meet the different payloads and other requirements of each different ROV.

VideoRay ROV Carefully designed to perform a variety of difficult tasks with size, weight, and deployment speed constraints, differentiated by strong thrust, longer wiring, higher resolution video, and interchangeable modular systems. In addition, to ensure higher mobility in deeper locations, each new configuration requires a high-density power supply and a high-efficiency conversion to meet mission requirements.

The modular power supply of the modular ROV

VideoRay Flexible ROV design can be supplied in three ways: short, long, or airborne battery without wire, even if the airborne electronic equipment remains unchanged. In order to adapt to this modular method, VideoRay makes full use of the advantages of the modular power supply network. This power supply network is realized by the Vicor high-density and high-efficiency power supply module. The 48V power supply from the Vicor DCM DC-DC converter is available from either 400V long wire or 72V short wire, while the PRM regulator provides 48V power to the same onboard electrical system. High efficiency fixed ratio BCM for the Pro 4 main controller unit of VideoRay, can convert 48V into the voltage required for electronic equipment and payload.

The universal BCM module can also be used for the top system to generate a tie-up voltage. BCM uses Vicor's proprietary sinusoidal amplitude converter topology to expand the input voltage from 48V to 800V through various K factors to accommodate a wide range of applications. High voltage BCM can not only achieve peak efficiency of 98% and power density of 2,400W / in³, but also can be easily combined into high power array, so the output can be connected in series to achieve higher output voltage.

Power supply network

For longer tethers, the 400V output from the rectifier may be supplied directly to the tether. On ROV, tie voltage is isolated through DCM DC-DC converter and stabilized to 48V. This design uses a DCM with different inputs depending on different tether voltages. The regulator 48V directly powers the propeller, while two BCM DC-DC transformers with an efficiency of 95% can provide 24V and 12V output for other airborne electronic devices.

When the ROV is powered by 2 redundant 48V batteries, a set of PRM regulators can stabilize the 48V output of each battery, and then combine these outputs. In these three cases, the onboard control electrical system is the same, and only the 48V power supply network changes to accommodate the power supply.

For short tie lines, the AC power supply can be rectified and converted to 72V tie voltage.

DCM48AP480T320A50 320W DC-DC Converter

Input: 48V (36 – 75V)

Output: 48V (28.8 – 52.8V)

Diemsion: 38.7 x 22.8 x 7.2 mm

BCM48BF240T300A00 300W Bus Converter

Input: 48V (38 – 55V)

Output: 24V (19.0 – 27.5V)

Dimension: 32.5 x 22.0 x 6.73 mm

PRM48BF480T600A00 600W PRM Manostat

Input: 45V (38 – 55V)

Output: 48V (5 – 55V)

Dimension: 32.5 x 22.0 x 6.73 毫米