Workswell’s WIRIS Agro is the first device of its kind designed to map water stress across large areas in the field of precision agriculture. The aim of this method and device is to determine the value of water stress in the plant stand. For example, this information may be used to determine yield maps, optimize irrigation, or control water management remedies. Camera offers LWIR band sensor (640×512) and 10x optical zoom RGB camera with resolution full HD (1920 x 1080 px).
800 x 600 px
LWIR Band Sensor
10X
Optical Zoom
1920 x 1080 px
Full HD Resolution
800 x 600 px
LWIR Band Sensor
10X
Optical Zoom
1920 x 1080 px
Full HD Resolution
Crop Water Stress Index
ACCESSIBLE CROP WATER MANAGEMENT
The crop water stress index (CWSI) was developed (in 1981) as a normalized index to quantify stress and overcome the effects of other environmental parameters affecting the relationship between stress and plant temperature.
MEASURING WATER STRESS
CROP DROUGHT, ACTUAL AND REAL VALUE
In the dry season what we are usually interested in is the actual effects of drought on crops. These impacts are not only dependent on the condition of the so-called climatic drought, but also on the groundwater drought, the size of the plant root system, etc. Measuring the water stress of plants with WIRIS Agro will help you to determine the actual and real effects of drought on the crop.
A CWSI of 0 indicates no water stress, and a value of 1 represents maximum water stress. The cropwater stress that signals the need for irrigation is crop specific and should consider factors such as yield response to water stress, probable crop price, and water cost. Reginato and Howe (1985) found that cotton yield showed the first signs of decline when the CWSI average during the season was greater than 0.2.
POTENTIAL YIELD MAPS
Based on the value of water stress, an approximate potential yield map can be determined. Obviously, the more plants are hit by drought, the lower their yield. Worksell CWSI Analyzer software, that comes in bundle with WIRIS Agro, makes it possible to generate potential yield maps from a large number of images across many hectares in a very short time (Challenging calculations common, for example, for orthophotogramers are not needed).
With WIRIS Agro you can get actual values of crop water stress during the flight, or you can use the collected data to create an overview map. By comparing yields from different years depending on water stress, a potential yield map can be created according to the current water stress value.
POTENTIAL YIELD MAPS
Based on the value of water stress, an approximate potential yield map can be determined. Obviously, the more plants are hit by drought, the lower their yield. Worksell CWSI Analyzer software, that comes in bundle with WIRIS Agro, makes it possible to generate potential yield maps from a large number of images across many hectares in a very short time (Challenging calculations common, for example, for orthophotogramers are not needed).
With WIRIS Agro you can get actual values of crop water stress during the flight, or you can use the collected data to create an overview map. By comparing yields from different years depending on water stress, a potential yield map can be created according to the current water stress value.
MONITOR WATER STATUS
To monitor water stress, ie. the lack of water that the crop is exposed to during the growing season. And regardless of whether the crops are irrigated or not. Special colour map “Crop” and “CropStep” are available.
To monitor water stress, ie. the lack of water that the crop is exposed to during the growing season. And regardless of whether the crops are irrigated or not. Special colour map “Crop” and “CropStep” are available.
MANAGE IRRIGATION MANAGEMENT
Irrigation system optimization both in terms of determining suitable locations for the location of soil sensors and in terms of structure optimization. Special colour map “Water” and “WaterStep” for that application are available.
PHENOTYPING
Different plant varieties are susceptible to the amount of water available. 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.
Different plant varieties are susceptible to the amount of water available. 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.
SOFTWARE INCLUDED
CWSI ANALYZER
Workswell CWSI Analyzer is a desktop software used to processing of CWSI images. It allows setting of individual parameters necessary for correct calculation of CWSI, both tabular and additional measurement. The software includes predefined most common crops where table values are entered directly. The big advantage of the software is the ability to process hundreds of images at once (mass data processing).
The software is supplied free of charge to the WIRIS Agro.
SPECIAL FEATURES
WIRIS OS – MAXIMIZE THE FULL POTENTIAL
Operating system WIRIS® OS has been in development for over 4 years now (and tested on the previous generations of the Workswell WIRIS® cameras) and therefore allows you to maximize the full potential of sensoric and computing hardware and thus get the functionalities which the similar products with no operating system cannot even come close to
DURABLE DESIGN
WIRIS® Agro is protected by a rugged case made of lightweight aluminium. In addition, its most sensitive part, i.e. the thermal camera lens, is protected by a replaceable protective cap made of germanium.
256 GB OR 512 SSD DISK, EXTERNAL USB DISK OR MICROSD CARD
Workswell WIRIS® Agro camera is equipped with an internal SSD disc with 128 GB or 256 GB memory for recording. It is also possible to save data to external USB disk or microSD card.
WEIGHT AND DIMENSIONS
WIRIS® Agro weighs less than 430 g, which very convenient for drone usage.
- WEIGHT: < 430 g
- DIMENSIONS : L83 x W85 x H68 mm
SPECS |
|
CWSI onboard processing |
Evaluation of Crop Water Stress Index onboard |
Operating onboard system |
CSWI OS for full real-time data streaming and evaluation during flight
|
10x Optical Antivibration zoom |
Full HD 10x optical zoom camera with anti-vibration compensation |
CSWI camera specification |
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| CSWI sensor resolution | 640 x 512 pixels |
| CSWI evaluation | Workswell patented CWSI camera technology based on crop water stress index (normalized to value from 0 to 1) brings information about the crop stress and crop water management on large areas. The information can then be used to determine yield maps, manage irrigation or implement water management related remedies. |
| FPA active sensor size | 1.088 x 0.8705 cm |
| Type of sensor | LWIR band sensor |
| CWSI evaluation range | 0 – 1 (1 means very stressed) |
| Temperature sensitivity | 0.03 °C (30 mK) |
| CWSI calibration | Yes, calibrated for different ambient temperatures |
| Field of view of the lens | 45° |
| CWSI Colour-map | 4 colour maps for CWSI and Water management evaluation |
| CWSI range settings | Automatic, manual or span |
| CWSI calibration | 1 – 14x continuous |
| Software CWSI analyzer | Yes, included in the package |
Digital visual camera |
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| Resolution | 1 920 x 1 080 pixels (Full HD), 1/3” sensor, Auto white balance, Wide dynamic range, Backlight compensation, Exposure and Gamma control |
| Optical zoom | 10x optical zoom with vibration compensation and image stabilisation |
| View angle | Ultra zoom 6.9° – extra wide 58.2°, focal 33.0 mm – 3.3 mm |
| Noise reduction | Special 3D noise reduction function |
| Focus | Autofocus with Direct Focus Zoom synchronization |
Memory and data recording |
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| Memory |
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| Image and video formats |
|
| GPS tagging (image & video) | MavLink or External GPS or DJI A3 controllers compatible via CAN bus |
Interfaces & real-time remote control |
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| 10-pin digital port |
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| Ethernet (RJ-45) port | Video streaming and camera control (optional on request only) |
| Micro USB 2.0 port | Mass storage Camera control and video streaming (optional on request only) |
| USB 2.0 port | Keyboard connection for in-house WIRIS camera control |
| Remote control system | CWSI OS ensures real-time control of all camera functions during the flight |
| Remote control options | S.BUS protocol CAN bus for real-time control on DJI M600 and GPS geo-tagging RJ-45 for wireless uplink installation (video streaming and camera control) |
| Protective filter on lens | Filter protects the lens against external damage during the flight |
| Camera functions | Measurement functions:
Periodic capturing:
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| Camera modes visualization | Full-screen mode, Picture-in-Picture, Full Dual-screen, Dual-screen |
| Micro HDMI video output | 1 280 x 720 pixels (720p), Aspect ratio 16:9, Micro HDMI video output |
Software & SDK |
|
| Desktop software | Advanced Workswell CWSI analyzer for CWSI evaluation |
Power supply, weight & dimensions |
|
| Input supply voltage | 9 – 36 VDC, Coaxial 2 x 6.4 mm, outer shell – GND |
| Power dissipation (avg.) | 12 W |
| Weight | < 430 grams |
| Dimensions (L x W x H) | 83 mm x 85 mm x 68 mm |
| Mounting | 2 x 1/4-20 UNC thread (1x bottom side, 1x upper side) |
| Housing material | Durable aluminium body for long-time measurement stability |
Environmental |
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| Operating temperature range | -10 °C to +50 °C |
| Storage temperature range | -30 °C to +60 °C |