Trident cable can be disassembled and replaced? How about charging


Trident cable can be disassembled and replaced? How about charging?


The tether is terminated at both ends with the tether connector for the vehicle, over-molded with a flexible plastic material. Trident is not designed or intended to be opened by end users. You can of course do this, but its warranty will be voided. Batteries are enclosed, and charged via the tether connector. We will have a battery replacement system for anyone whose Trident batteries are fully spent, we will require units be sent in so our in-house technicians replace them. As a consumer product, this is the only way we can ensure that the pressure proof housing for Trident electronics meet our standards, so we can guarantee their functionality.


Will it be charged with the 100-meter cable? How much do you charge with a volt voltage?


No - the charger uses the same connector, but is a completely different thing than the tether. Tether must be removed to attach the charger.


Oh, that every charge or to open the tether, and then can charge it? Charging interface is also need to do waterproof, right?


No - no charging should be done in a wet environment. The rubber gasket stays on the Trident, but you really should plan on charging Trident in a controlled environment.


What about the buoy’s charge? Is it also necessary to charge it alone?


The topside device is powered by the ROV, power source being the ROV batteries. Also the device is no longer a buoy, the design changed a couple months ago and it will now perform the same function, but without floating out at sea.


By the ROV power supply, then ROV power switch where? Now the buoy of the power supply is provided through the ROV, ROV inside the battery capacity to be relatively large, right?


There is no physical switch. Once the tether is connected the power runs up the tether to the topside device, so essentially the tether connection itself is the switch. The battery life averages to be about 4 hours of dive time.


Hi Nima

So just inferring from your answer. The unit is turned on by connection of the tether (I am assuming topside connection to the WiFi unit is good enough) thus if at sea on a small wet boat you can have the tether pre connected to the ROV and then make (and break as required for prolonged battery use) this topside tether connection - Is this correct?

Do you have any power usage of the “sleep” mode of the unit (so if it is connected up before heading out to sea) how long does it take for the WiFi unit and the Raspberry Pi on board the ROV (no active operation of the ROV) to run the battery down? eg if connected up in the morning on land given about 3-4 hrs of semi active normal use if it is used intermittently over say a 12hr day this may be 2-3hrs??

Thanks Scott


I understand the buoy is also with the battery, right? Buoy and ROV are on the battery, you test how long can normal use?


Hi Scott,

You are correct - you can disconnect the tether from the topside device to power off the ROV. Do mind however, that once the tether is connected to the topside device and the ROV is powered on, it takes anywhere from 1-3 minutes for both the Raspberry Pi (on the Trident) and the Topside WiFi device to be fully booted up and connected to.

We don’t have an exact calculation of how long the ROV will remain on when powering the Raspberry Pi + WiFi. Your use case could possibly work, but we don’t know. @Walt_Holm what do you think? He wants to leave the ROV on for up to 12 hrs and use it semi-actively for 3-4 hrs / day.


Have you tested how long wifi is connected?


Are you asking about the duration that the WiFi board will be able to remain powered on, or what the WiFi’s physical range is?


I mean what the WiFi’s physical range is?After all, wireless signals are generally not stable


We are yet to release final WiFi range, further testing is pending as we modify the final specifications according to various parameters as determined by FCC, CE and other regulatory bodies. However we expect the final thing will have a similar range as a standard home WiFi router.


Yes, the wireless design is your new development? Is looking forward to see trident have excellent performance.


We are not developing the WiFi board itself, but rather integrating an existing one to our Topside unit design. The software and firmware are then customized to suit out needs.


Disconnecting the tether for turning on/off the system and for charging is a bad idea , the connector will be worn and at some stage give you problems while operating in salt water…