Diving Waterproof Housing Pressure Sensing for Seal Verification

The patent implements feedback mechanisms through visual indicators (LED lights) that provide real-time information about the housing's fastening status and operational mode. The system continuously monitors pressure data and provides feedback to the user through different lighting patterns, enabling users to confirm proper fastening and control functions even underwater where touch recognition is difficult.

The system performs self-diagnosis and self-validation by automatically monitoring internal pressure changes to determine whether the housing is properly sealed. The control unit continuously checks pressure data and autonomously determines the fastening status without requiring user intervention, thereby solving the problem of difficult fastening verification underwater.

The pressure sensor serves multiple functions: it detects fastening status by monitoring internal pressure, determines whether the device is above or below water based on pressure thresholds, and triggers appropriate operational modes. This multi-functionality reduces the need for separate sensors for each detection purpose, thereby limiting the increase in device complexity while achieving multiple measurement objectives.

The system uses changes in pressure parameters to determine different states: internal pressure indicates fastening status, while external pressure thresholds distinguish between above-water and underwater environments. By utilizing parameter changes rather than adding dedicated sensors for each state, the system achieves accurate detection with minimal additional hardware.