Autonomous hydrographic and bathymetric surveys USV
The APACHE 4 is an Unmanned Surface Vehicle (USV) that supports a wide variety of Acoustic Doppler Current Profiler (ADCP) systems available on the market. It offers an unmanned operation solution with a shallow draft, high navigational accuracy and stable hovering for hydrologists when measuring water flow velocity and discharge of a current section.
Adaptive water flow straight-line and hovering technology
The APACHE 4 control system enables navigation straight along the cross-section according to the profile view when the flow rate, turbulence, etc. change. The hovering technology can make APACHE 4 hover stably in the turbulent flow at the start and endpoints of ADCP observation, thereby improving the accuracy of flow estimation.
Versatile. Carries up to 30 kg of payload
The APACHE 4 central access shaft design provides unmanned cross-sectional flow measurement solutions for the leading ADCPs on the market. The APACHE 4 is particularly suited for hydrologists using ADCP sensors such as the M9, RTDP 1200, RiverPro, and RiverRay who are looking for an integrated, portable, and affordable unmanned solution. It does not only carry the ADCP but also provides its positioning, orientation, power, waterproofing, network, and 4G transmission solutions.
Expand your unmanned survey capability
Single beam sounding data can be used to verify the accuracy of ADCP bottom tracking data, and even fed directly into the ADCP flow measurement software to compensate for the unavailability of ADCP data, and at the same time provide water depth profile data associated with the flow velocity of profile measurement.
Uninterrupted positioning with GNSS+IMU
APACHE 4 provides a stable position and heading to the ADCP and autopilot. Its IMU sensor ensures the availability of position data even during momentary GNSS signal loss. The obstacle avoidance radar system and live video feed ensure safe operations in case of loss of visibility or difficult environmental conditions. Completely autonomous, the APACHE 4 is safely operated from the shore. The AutoPlanner and HydroSurvey software suite allow the operator to define the entire mission, from the survey area to the export of the results.
The APACHE 4 is an Unmanned Surface Vehicle (USV) that supports a wide variety of Acoustic Doppler Current Profiler (ADCP) systems available on the market. It offers an unmanned operation solution with a shallow draft, high navigational accuracy, and stable hovering for hydrologists when measuring water flow velocity and discharge of a current section.
Designed for efficient hydrographic, bathymetric, and hydrological surveys, the APACHE 4 USV brings together the best high-accuracy positioning and automated navigation control technology, built around the operator's habits when conducting ADCP hydrographic cross-section flow measurements. The built-in adaptive water flow and hovering navigation technology significantly improve the accuracy of flow estimation. Even when GNSS positioning might be degraded by obstructed environments, the internal GNSS+IMU module continues to provide a reliable position and heading for the ADCP and autopilot controller.
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