Our new generation of seafloor robots
Our robots are regularly operating at 900 m water depth for 12 – 18 months since 2010.
These highly reliable tele-operated systems have been regularly improved and after 10 years of development we can now offer our latest version. This small robot offers a higher payload with enhanced control electronics and can be deployed down to 6000 m water depth.
Modern marine survey technologies utilze a toolbox of robotic infrastructure including ROVs , AUVs, Glider and sea floor crawlers which grant maximum success when specifically applied.
|Main Frame and caterpillar section||PEHD-500|
|Vehicle||LWH 140x 100x 85 cm|
|Weight in air||280 kg approx.|
|Control unit||carbon fibre with titanium grade 5 caps|
|Payload||120 kg approx|
|Max depth||6000 m|
|Buoyancy||Solid cell structure|
|Power input||48 V|
|Motors||Dunker, 600 W|
|Speed approx||0.1 to 0.5 m/s|
|Camera||Wisenet XNP-6040H or similar|
|Camera 2, option||Low light Sony camera, 0,05 lux|
|Lights, standard||Up to 140 Watt neutral white light|
|Sensors||CTD, ADCP, turbidity, chlorophyll, methane, and others on demand|
|Sony low light camera, 3 D laser camera for navigation and mapping, micro-optodes|
|Manipulator Electric 5e manipulator|
|Surface buoy for tele-operations from ship or shore|
|Full autonomy package (2020)|
Comparison Crawler / AUV, Glider / ROV
Crawler typically monitor areas of 0.1 to 1 km2 size
Applicability and Safety
- simpler technology in terms of complexity, costs, and robustness, less personal intensive
- missions can be transferred via internet onto the ship before deployment
- can safely be switched off, energy efficient, stays on the spot.
- qualifies for longterm operation both regarding robustness and energy efficiency
- solid base from which to work and sample. Sensors can be placed more precisely than with swimming robots
- a robotic arm (on demand) allows direct access into complex habitats such as reefs (teleoperated mode)
- not affected by current flow conditions and can return to resample locations easier
- less personal bias in sampling. Can be operated with one person
- at cabled observatories, experts can drive and analyze via internet
Payload and instrumentation
- Crawlers have a very high pay load capacity exceeding ROVs, AUVs and Glider by a factor of 10 to 15.
- sensors and profilers can precisely penetrate the seafloor; by mounting such systems at the front of a crawler, undisturbed areas can be profiled for oxygen, pH, methane, CO2, etc
- very detailed transect analyses of sediment surfaces with laser guided habitat mapping.