Subsea Embedded Systems

For your Subsea applications, we design tailor-made systems to integrate various functions in a watertight submersible housing, with electrical, pneumatic or hydraulic connections and on-board control electronics.
These systems are developed to measure according to your requirements and technical specifications.

This can be a housing integrating a hydraulic or pneumatic circuit, sensors, electrical distribution elements, communication hub, etc.

The principle is to embed standard technologies (sensors, solenoid valves, etc.) controlled by on-board electronics in a pressure-resistant watertight housing.

Examples of systems :

• Electrical distribution box and communication hub: this type of system enables several electrical subsea actuators to be connected. The box distributes power supply connections, electrical protection functions and a “Hub” function for communication.
• DC voltage management/adaptor box : box integrating voltage converter, bus voltage limitation systems and load resistor.
• Fluid circuit: system incorporating a hydraulic or pneumatic circuit equipped with sensors (pressure, flow, temperature) and actuators (solenoid valves, valves, flaps, etc.), all controlled by integrated, autonomous, communicating electronics.
• Adaptation box : adaptation of electrical connections or communication protocols.

Validation & tests :

All submarine modules developed by LF Technologies are fully tested in-house, eliminating the need for additional tests:

• Full functional tests: tests carried out in air and in immersion under real load;
• Rigorous tightness tests: validation of tightness up to maximum permissible pressure.
• Verification of communication protocols: checks that the protocol chosen by the customer is operating correctly (CAN, RS232, Ethernet TCP, Ethernet UDP, Modbus TCP, protocols on request).
• Full energy analysis: measurement of current and power consumption according to several usage scenarios.