A system and method are described for controlled leveling of a multi-wing spray boom assembly. A multi-loop cascading controller arrangement includes a main controller that renders actuation control commands to an actuator controller for causing positioning of actuators of the multi-wing boom assembly to reduce a determined current position error of the assembly in relation to a determined contour. The main controller operates, according to a main controller repetition cycle period within which an actuation command is rendered for implementation by the actuator controller, to generate positioning commands to be carried out by the actuator controller. The actuator controller executes an actuator controller loop, independently of the main controller and in accordance with an actuator controller repetition cycle period having a duration that is independent of the main controller repetition cycle period, to generate control signals for the actuators of the multi-wing boom assembly.

An agricultural sprayer arrangement includes a chassis, at least one ground engaging traction member carried by the chassis, a liquid tank carried by the chassis, a boom carried by the chassis, a fluid conduit associated with the boom that is fluidly connected to the liquid tank, a spray nozzle that is fluidly connected to the fluid conduit and includes a nozzle body, a differential pressure sensor with a first pressure sensor in the fluid conduit associated with the spray nozzle and a second pressure sensor in the nozzle body, and an electrical processing circuit coupled to the differential pressure sensor. The differential pressure sensor is configured to output a pressure difference signal and the electrical processing circuit is configured to report a blocked nozzle when the pressure difference signal is less than a predetermined threshold value.

An irrigation system broadly comprising a number of irrigation spans and a control system configured to operate single speed drive motors of the irrigation spans in a start-up mode, full speed mode, and wind-down mode. In the start-up mode, the motor controller gradually increases the drive motor speed from 0 rpms to a full speed by ramping a voltage applied to the drive motor from a starting voltage to a full speed voltage according to a start-up voltage profile over a start-up time interval. In the full speed mode, the motor controller operates the drive motor at a full speed voltage. In the wind-down mode, the motor controller gradually decreases the drive motor speed from full speed to 0 rpms by ramping the voltage applied to the drive motor from the full speed voltage to an ending voltage according to a wind-down voltage profile over a wind-down time interval.

A vehicle platform comprises a central body that can support one or more implement configurations, such as sprayer booms, or planting row units. A plurality of adjustable legs extends downward from the central body. An arm assembly has a first end and a second end opposite the first end. The first end is pivotably coupled the central body and the second end coupled to a support beam. A plurality of nozzle assemblies is supported from the support beam. An arm actuator is arranged to control a transverse position of the support beam and the nozzle assemblies with respect to a reference point on the central body, such that each nozzle assembly may be aligned with a row of seeds or plants.

A farming machine is configured to identify and treat plants in a field. The farming machine includes one or more light sensors for measuring a characteristic of light. The one or more light sensors are coupled to the farming machine and are directed a substantially upwards orientation away from the plants. A control system adjusts settings of an image acquisition system based on a characteristic of light measured by the one or more light sensors. The image acquisition system captures an image of a plant using one or more image sensors coupled to the farming machine, the one or more image sensors directed in a substantially downwards orientation towards the plants. The control system identifies a plant in the image and actuates a treatment mechanism to treat the identified plant.

A configurable spray boom includes a boom frame that includes an upper support and a lower support that are separated from each other with respect to a vertical axis and extend parallel to a first axis. Camera frames are attached to the upper and lower supports, each camera frame including first and second supports that are separated from each other with respect to a second axis. Each camera frame has a vertical plane of symmetry. The camera frames are evenly spaced, with respect to the first axis, along the boom frame. In a first configuration a respective camera is mounted on the first support such that the respective camera is oriented in a first direction. In a second configuration the respective camera is mounted on the second support such that the respective camera is oriented in a second direction.

A fluid sprayer includes a tank containing fluid therein and a nozzle assembly in communication with the tank to receive fluid therefrom and to atomize the fluid. The fluid sprayer also includes a blower assembly positioned upstream of the nozzle assembly for dispersing the atomized fluid from the nozzle assembly into the surroundings of the fluid sprayer and a discharge chute positioned downstream of the blower assembly into which the atomized fluid from the nozzle assembly is sprayed before being discharged vertically upward and into the surroundings of the fluid sprayer. The nozzle assembly includes at least one discharge port having a discharge axis oriented perpendicular to a direction of airflow exiting the discharge chute.

A fluid sprayer includes a tank containing fluid therein and a rotary atomizer in communication with the tank to receive fluid therefrom and to atomize the fluid. The fluid sprayer also includes a blower assembly positioned upstream of the rotary atomizer for dispersing the atomized fluid from the rotary atomizer into the surroundings of the fluid sprayer and a discharge chute positioned downstream of the blower assembly into which the atomized fluid from the rotary atomizer is sprayed before being discharged upward and into the surroundings of the fluid sprayer. The rotary atomizer includes a plurality of fan blades coupled to a hub. The fan blades are operable to impart rotation to the hub in response to an airflow generated by the blower assembly flowing around the fan blades.

A vehicle platform comprises a central body that can support one or more implement configurations, such as sprayer booms, or planting row units. A plurality of adjustable legs extends downward from the central body. An arm assembly has a first end and a second end opposite the first end. The first end is pivotably coupled the central body and the second end coupled to a support beam. A plurality of nozzle assemblies is supported from the support beam. An arm actuator is arranged to control a transverse position of the support beam and the nozzle assemblies with respect to a reference point on the central body, such that each nozzle assembly may be aligned with a row of seeds or plants.

A method of operating a fluid sprayer includes supplying a first fluid selected from a group consisting of larvicide, adulticide, and a barrier repellant to a nozzle assembly at a first regulated pressure. The method further includes changing the first regulated pressure to a second regulated pressure different than the first regulated pressure. The method further includes supplying a second fluid selected from the group to the nozzle assembly at the second regulated pressure.