Welcome to check the frequently asked questions about underwater ROV. It covers common daily issues including device connection, video stuttering, thrusters, umbilical cables and troubleshooting, helping you resolve basic malfunctions independently.
Question Categories
Quick Self-troubleshooting Tips
- Prior check the tight connection of power supply, network cable, USB and umbilical cable ports
- Set the computer static Ethernet IP to: 192.168.2.1
- Allow the app through Windows Defender Firewall or turn the firewall off (not recommended)
- Check interference caused by strong magnetic fields and cable tangling on site
- Power off and restart the device once abnormalities occur, then inspect hardware connections item by item
Underwater ROV Troubleshooting Guide
- IP Address: Set the Ethernet IPV4 to 192.168.2.1 and the subnet mask to 255.255.255.0 on your computer.
- Firewall: Allow the app through Windows Defender Firewall.
- Check ROV Power-Up: Listen carefully when powering on. The ROV must emit two clear startup tones. If you do not hear them, the system has failed to complete its initialization.
- Inspect Cable Reel Joint: Verify the connection at the cable reel slip ring/joint. Ensure it is tightly locked and free of debris.
- Examine Umbilical Cable & Ports: Check the entire length of the tether for any visible physical cuts or breaks. Re-plug and secure the port connection leading into the surface communication box.
- Check Environmental Interference: Avoid operating near strong magnetic sources such as subsea steel bars, large iron structures, or high-voltage power cables on site, as these can degrade tether data transmission.
- Inspect Tether Management: Ensure the umbilical cable is completely untangled, free of knots, and not subjected to excessive tension or sharp bends during deployment.
- Verify Hardware & Decoding Compatibility: Video stuttering or mosaic lag can occur due to GPU decoding incompatibilities on certain laptops (e.g., specific Lenovo models). Try toggling the hardware acceleration settings in the ground station software or updating your graphics card drivers.
- Verify Power Supply & USB Link: Ensure the surface communication box is properly powered on. Check that the external USB power supply cable is firmly plugged in and delivering stable voltage.
- Check Wired Cable Connections: Unplug and firmly re-seat both the network (Ethernet) cable and the USB cables connected to the surface communication box. Inspect the ports for any dust or corrosion.
- Inspect Cable Reel Slip Ring: Total loss of telemetry and video often points to the slip ring inside the cable reel. Spin the reel gently to see if connection fluctuates, or use a multimeter to check the continuity and contact stability of the internal slip ring channels.
- Check for Physical Obstructions: Inspect the propellor and duct closely. Ensure the thruster is completely clear of any trapped sand, salt crystals, or residual underwater debris (such as water plants or fishing nets) from previous dives.
- Perform Manual Rotation Test: With the power completely OFF, gently rotate the propeller by hand to check for smooth movement. If it feels jammed or unusually stiff, do not force-power it on desktop to avoid permanent motor burnout.
- Verify Signal & Binding: If the propeller spins freely by hand but fails to rotate during the desktop software test, check the thruster's PWM control cable connection and verify if the specific thruster ID is correctly assigned in the ground station.
- Understand the Water-Cooling Design: The ROV thruster motors are specifically engineered for underwater operation, relying on surrounding water for lubrication and cooling.
- Adhere to Air-Testing Limits: Only low-power and short-duration (a few seconds) testing in the air is permitted. Prolonged dry running on a desktop can lead to overheating or component damage.
- Identify Normal Noise Levels: A slight friction or humming sound during air operation is completely normal due to the lack of water dampening. If the noise is accompanied by severe vibration or manual jamming, power off immediately and check for internal particle ingress.
- Enforce Immediate Stop Policy: Continuous operation with a visibly damaged or compromised umbilical cable is strictly prohibited. Cease deployment immediately upon detecting any outer jacket tears or cuts.
- Understand the Risk of Failure: A damaged tether loses its pressure resistance, leading to rapid water ingress along the internal conductors. This can cause severe short circuits, communication failure, or catastrophic damage to the main electronics pod.
- Execute Prompt Replacement: Replace the damaged tether segment or the entire cable assembly before the next dive. Do not rely on temporary electrical tape fixes for underwater high-pressure environments.
- Cut Surface Power Immediately: If the ROV loses all data/video but keeps moving out of control, immediately shut off the power to the surface communication box. This cuts the physical power loop to the thrusters and prevents the vehicle from driving itself into obstacles or breaking the tether.
- Recover the Vehicle Manually: Hand-haul the umbilical cable gently but firmly to recover the ROV to the surface. Do not use the cable reel's electric motor if it shares the compromised power source.
- Perform Ground Inspection: Once the ROV is safely on deck, keep it powered off. Thoroughly inspect all physical connections, check the tether for hidden damage, reboot your ground station computer, and restart the software before attempting any desktop diagnostics.
- Perform a Hard Hardware Reset: For any transient glitches or undefined system freezes, a master hardware reboot is the most effective solution. Power down the entire system, safely disconnect or remove the onboard battery unit from the ROV, and wait for 30 seconds to allow all internal capacitors to discharge completely.
- Clear Software & Link Caches: While the ROV is powering down, close the ground station software, unplug the surface control connection, and restart your operating system to clear any temporary network or USB communication stacks.
- Re-establish the Telemetry Loop: Reinsert the fully charged battery pack, seal the battery pod properly, power on the surface communication box first, and then launch the ground station software to re-establish a clean, synchronized data and video link.
Technical Support
For professional faults unsolved via FAQ, please contact official after-sales team: support@charpierov.com
Tip: Click Frequently Asked Questions to view complete solutions and detailed troubleshooting procedures.