What is LeapBox?
LeapBox consists of valves, modules, a controller, and a modem to control the nozzles. The LeapBox system is capable of spraying how you would imagine it in a perfect world, with no compromises in precision and variation accepted. Farming On Plant Level requires the rate needs to be accurate, but, more importantly, the correct spraying distribution for the entire speed range and all duty cycles.
LeapBox regulates the application rate based on a fixed pressure, which means that the optimal droplet size is always maintained. Moreover, the rate is turn compensated and also prepared for compensation of movement of the boom relative to the machine.
How it works – Open & Closing time
The system is capable of working at 100Hz (each nozzle, not Blended PWM or bPWM). So the valve is extremely fast, which minimizes the opening and closing time, i.e. the time between the valve is completely open and completely closed. This allows the system to always maintain a large application rate range, even at high spraying speeds.
Zero-compromise spraying quality is maintained at low and high driving speeds. The very high switching speed of the valves makes this possible, providing stepless rate regulation at low driving speed for each nozzle from 2% to 98%. At higher driving speed (24km/h) the stepless rate regulation range only slightly decreases, providing 15% up to 85%. At 36km/h still 18 to 82% is available. Completely open (100%) and completely closed (0%) is always available. All rates with the correct spray distribution.
The system is designed for 250 spraying positions, which makes it suitable for a 60 meter wide boom with 25cm nozzle spacing. Each spraying position can have more than one valve, e.g. A/B line switching. LeapBox is capable of changing the rate per nozzle within 10cm at 36km/h. Other PWM systems do this with a minimum of 100cm (10Hz system). The requested application rate can be the same over the whole boom, a variable rate for groups of nozzles, a variable rate per nozzle, and a spot spray system.
“LeapBox is 10 times faster than the competition. With a higher frequency and the shortest opening and closing time, provides Leapbox the shortest spraying cycle ever. The working range of application rates is therefore extraordinary broad.”
Martijn van Alphen – Leap Creator
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