In deep-sea exploration, the use of various sensors heavily relies on high-precision time signals. However, GNSS signals from satellites cannot reach underwater. Traditional solutions rely on Oven-Controlled Crystal Oscillators (OCXOs) to provide time and frequency signals for exploration node sensors. However, OCXOs do not perform ideally in terms of long-term stability and power consumption.

        Chip-level atomic clocks can better meet the requirements of exploration nodes in these aspects. They offer wider temperature ranges and are the preferred choice for future ocean exploration node time synchronization.