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Crop Water Stress Index camera

The Workswell WIRIS Agro R is the first device of its kind. Designed to map water stress across large areas, the Agro has a critical role to play in the field of precision agriculture. The device facilitates the determination of the water stress value in a given stand of plants. This information can then be used to determine yield maps, optimize irrigation, and fine-tune water management strategies.



In the dry season, precision farmers want to measure the actual effect of drought on their crops. However, this can be difficult to identify. For example, crops may respond differently to drought if they have access to groundwater, and each plant has a different root system. These factors make it hard to tell how much a particular crop might be suffering during a given drought. That’s where the WIRIS Agro comes in. This thermal camera makes real-time measurements of the actual effects of drought on a crop.


Colour Map Overview

The WIRIS Agro R offers four different color maps. In terms of data processing, it is not important which map you choose, but a suitable palette choice can enhance data visualization. Each color map is defined as follows: the palette is black and white as you move away from both the 0 value (negative values below the range), and the 100% value (values above the range).

WIRIS Agro R – main benefits

Although it has many uses, we can divide the main WIRIS Agro functions into these three categories:

✅ Water status monitoring – Water stress is the plant’s response to deficiencies in the water supply during the growing season, regardless of whether the crops are irrigated or not. To enhance monitoring, the AGRO creates special color maps, “Crop” and “CropStep.”

✅ Irrigation Management – This facilitates irrigation system optimization both in terms of determining optimal locations for soil sensors, and in terms of structure optimization. The special color maps, “Water” and “WaterStep,” are available for this use.

✅ Phenotyping – Plant varieties respond differently to the amount of water available to them. The WIRIS Agro will help you determine how often the plants of a given species are in water stress, compared to plants of other species.

CWSI Analyzer software

The CorePlayer CWSI Analysis Software is a desktop software used for processing, analyzing, and exporting CWSI RAW data images and videos. It allows the user to set a variety of parameters and models that are necessary for the correct calculation of the CWSI Index, and it facilitates later processing if the input data sent to the camera needs to be adjusted.

For data processing into 2D or 3D visualizations, we recommend the most commonly used SW tools such as Pix4D and Agisoft. Each image or video frame shot with the Agro includes GPS information for processing.

The software is supplied free of charge with the WIRIS Agro.

Technical information & documents

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