An Opto-Electronic Sensor for Detecting Soil Microarthropods and Estimating Their Size in Field Conditions

Gedeon, Csongor I.; Flórián, Norbert; Liszli, Péter; Hambek-Oláh, Beáta; Bánszegi, Oxana; Schellenberger, Judit; Dombos, Miklós

doi:10.3390/s17081757

Cited by 13 publications

(9 citation statements)

References 37 publications

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“…However, the accuracy of detection depends on the size, shape, and even on the movement pattern of the given specimen [11]. In our previous work [35,36], we found that the morphology of arthropods (pigmentation, color, hairs, and appendages) influenced the detectability. These differences in detectability could be seen in the current experiments as well.…”

Section: Discussionmentioning

confidence: 84%

“…The earlier version of our infrared sensor [35,36] was built for soil microarthropods with small body sizes and reached a 90%-95% detection rate only at 1 mm body size. In contrast, the new IRSR-2 sensor-ring detected smaller (>0.6 mm) individuals with high accuracy.…”

Section: Discussionmentioning

confidence: 99%

“…Our previous prototype, called EDAPHOLOG, is a monitoring device that operates with opto-electronic sensors and can detect the activity of animals living in the soil [35]. We have previously developed another type of infrared sensor for soil microarthropods that was also used in EDAPHOLOG probes [36]. Based on this prototype and other prototypes developed in the frame of the INSECTLIFE project (zoolog.hu/insectlife), we present a universal sensor-ring that fits into several types of traps.…”

Section: Introductionmentioning

confidence: 99%

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An Opto-Electronic Sensor-Ring to Detect Arthropods of Significantly Different Body Sizes

Balla

Flórián

Gergócs

et al. 2020

Sensors

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Arthropods, including pollinators and pests, have high positive and negative impacts on human well-being and the economy, and there is an increasing need to monitor their activity and population growth. The monitoring of arthropod species is a time-consuming and financially demanding process. Automatic detection can be a solution to this problem. Here, we describe the setup and operation mechanism of an infrared opto-electronic sensor-ring, which can be used for both small and large arthropods. The sensor-ring consists of 16 infrared (IR) photodiodes along a semicircle in front of an infrared LED. Using 3D printing, we constructed two types of sensor-ring: one with a wider sensing field for detection of large arthropods (flying, crawling, surface-living) in the size range of 2–35 mm; and another one with a narrower sensing field for soil microarthropods in the size range of 0.1–2 mm. We examined the detection accuracy and reliability of the two types of sensor-ring in the laboratory by using particles, and dead and living arthropods at two different sensitivity levels. For the wider sensor-ring, the 95% detectability level was reached with grain particles of 0.9 mm size. This result allowed us to detect all of the macroarthropods that were applied in the tests and that might be encountered in pest management. In the case of living microarthropods with different colors and shapes, when we used the narrower sensor-ring, we achieved the 95% detectability level at 1.1 mm, 0.9 mm, and 0.5 mm in the cases of F. candida, H. nitidus, and H. aculeifer, respectively. The unique potential of arthropod-detecting sensors lies in their real-time measurement system; the data are automatically forwarded to the server, and the end-user receives pest abundance data daily or even immediately. This technological innovation will allow us to make pest management more effective.

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Section: Discussionmentioning

confidence: 84%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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An Opto-Electronic Sensor-Ring to Detect Arthropods of Significantly Different Body Sizes

Balla

Flórián

Gergócs

et al. 2020

Sensors

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“…Previously, the so-called EDAPHOLOG probe was developed to reduce energy consumption and human effort and to gain more information about the activity of soil-dwelling microarthropods [20]. In this probe, an infrared (IR) sensor was optimized for detecting soil-living microarthropods [21]. The previous version of EDAPHOLOG had several small drawbacks that need to be solved and corrected.…”

Section: Introductionmentioning

confidence: 99%

Detecting Soil Microarthropods with a Camera-Supported Trap

Flórián¹,

Gránicz²,

Gergócs³

et al. 2020

Insects

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There is an increasing need to monitor activity and population growth of arthropods; however, this is a time-consuming and financially demanding process. Using sensors to detect arthropods in the field can help to follow their dynamics in time. Improving our earlier device, we developed a new camera-supported probe to detect soil microarthropods. An opto-electronic sensor ring detects the caught microarthropod individuals what activates a camera. The camera takes pictures of a specimen when it arrives in the camera chamber. A vacuum device was built into the probe which pumps up the specimen from the probe to a sample container. Here, we describe the construction and operation of the probe. We investigated the precision of the process in a laboratory experiment using living microarthropods and evaluated the accuracy of the probes in a semi-natural investigation when environmental noise was present. Under semi-natural conditions, the percentages of success, i.e., the photographed specimens compared to the caught ones, were between 60% and 70% at the investigated taxa. The automatic camera shooting helped in distinguishing insects from irrelevant detections while collecting the trapped insects allowed species-level determination. This information together serves as a basis for the automatic visual recognition of microarthropod species.

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“…Our contribution is a special case in our [18][19][20], among others [21,22]; it is our long lasting goal to establish automated insect surveillance at global scale. This work is about a novel accelerometerbased sensor that transmits short vibration clips stemming from an internal part of the tree to a remote server (e.g.…”

Section: Introductionmentioning

confidence: 99%

In-Vivo Acoustic Surveillance of Trees in the Context of IoT

Potamitis¹,

Rigakis²,

Tatlas³

et al. 2019

Preprint

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This work introduces a device for long term systematic monitoring of trees against borers. A widely applied way to detect wood-boring insects is to insert a piezoelectric probe with uncoated waveguide in the tree trunk and listen for locomotion or feeding sounds through headphones. This approach has several shortcomings: a) frequent manual inspection of trees is costly and impractical to be scaled to hundreds or thousands of trees, b) the larvae could be present but inactive during the inspection time and, c) when the trees are in urban environments the background noise can be significant and can mask the feeble sounds of wood-boring insects even with the use of specialized headphones. We introduce a remotely controlled device that records and wirelessly transmits on a scheduled basis short recordings of the internal vibrations of a tree to a server. The user can listen remotely or process the recording automatically to infer the infestation state of the tree with woodboring insects that feed or move inside the tree. When integrated within the IoT framework this device can scale up to automatically monitoring the trees of the entire city. The proposed approach led to detection results in field trials of the pests Xylotrechus chinensis and Rhynchophorus ferrugineus.

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An Opto-Electronic Sensor for Detecting Soil Microarthropods and Estimating Their Size in Field Conditions

Cited by 13 publications

References 37 publications

An Opto-Electronic Sensor-Ring to Detect Arthropods of Significantly Different Body Sizes

An Opto-Electronic Sensor-Ring to Detect Arthropods of Significantly Different Body Sizes

Detecting Soil Microarthropods with a Camera-Supported Trap

In-Vivo Acoustic Surveillance of Trees in the Context of IoT

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