Circular product design for small and medium-sized producing enterprises

Purpose and goal:

The project´s aim is to reduce the need for energy and chemicals when using pesticides in greenhouse cultivations. The goal has been to develop the ability to identify pest infestations earlier than possible with the naked eye, as well as develop autonomous capabilities to spray against pest infestations in a greenhouse with precision spraying. By spraying early, the pesticide has a better effect, and a smaller amount is needed.

Precision spraying also reduces the need for chemicals as the spraying can be done locally at the area of the attack. Expected results and effects:

Indirect identification of mildew has been created by analysis of chlorophyll levels. Hyperspectral camera was used to demonstrate deterioration of the affected plant´s ability to absorb sunlight before the mildew is visible to the naked eye. Thermal imaging showed similar tendencies.

The autonomous platform reaches requirements on positioning and navigation to automate spray records. Spot treatment of greenhouse is an option which reduces personnel exposure to risky exposure to chemicals. From 1 January 2026, there are requirements for electronic spray journals within EU. Approach and implementation:

Obtaining enough training data for mildew detection models has been a challenge. An existing spraying platform has been used as a base, mainly to speed up development. Delays in the development of the platform have meant that integration between the detection model, navigation, and platform has not been fully completed.

The testing has been carried out in-house and in a greenhouse environment. The project would have greatly benefited from a greenhouse as project partner. Mainly to quicker get feedback from users, but partly to have a natural point for testing and integration.