GNSS Positioning and Navigation - A Foundational Element of Digital Farming

Tran, Hieu; Cao, Wei; Reutemann, Marcus; Dai, Liwen; Ostermeier, Ralph; Kormann, Georg

doi:10.23919/enc48637.2020.9317529

Cited by 3 publications

(1 citation statement)

References 13 publications

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“…This technology has become an integral part of modern farms. PA has evolved along with GNSS, placing greater demands on navigation systems (Tran et al, 2020). Some manufacturers have modernized systems by switching from DGNSS to Precise Point Positioning (PPP) (Zumberge et al, 1997),a technique that is widely used in PA as well as naval and aviation applications.…”

Section: Introductionmentioning

confidence: 99%

A comparative analysis of the performance of various GNSS positioning concepts dedicated to precision agriculture

Kowalczyk,

Hadas

2024

Reports on Geodesy and Geoinformatics

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Automated guidance systems for precision agriculture rely on Global Navigation Satellite Systems (GNSS) and correction services for high accuracy and precision in field operations. This study evaluates the performance of selected GNSS positioning services for precision agriculture in a field experiment. We use three correction services: SF1, SF3, and RTK, which apply varying positioning concepts, i.e., Wide Area Differential GNSS, Precise Point Positioning, and Real-Time Kinematics, respectively. The tractor is autonomously steered along multiple predefined paths located in open-sky areas as well as near the heavy tree cover. The reference route of the vehicle is determined by classical surveying. Tractor trajectories, a SF1 and SF3 corrections, are shifted from predefined straight paths, unlike in the case for RTK. Offsets of up to several decimeters are service- and area-specific, indicating an issue with the stability of the reference frame. Additionally, the varying performance of the correction services implies that environmental conditions limit the precision and accuracy of GNSS positioning in precision agriculture. The pass-to-pass analysis reveals that SF1 improves the declared accuracy, while SF3 is less reliable in obstructed areas. RTK remains a stable source for determining position. Under favorable conditions, the pass-to-pass accuracy at 95% confidence level is better than 11.5 cm, 8.5 cm, and 4.5 cm for SF1, SF3, and RTK, respectively. In the worst-case scenario, the corresponding accuracies are: 25.5 cm, 65.5 cm, and 22.5 cm.

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Section: Introductionmentioning

confidence: 99%

A comparative analysis of the performance of various GNSS positioning concepts dedicated to precision agriculture

Kowalczyk,

Hadas

2024

Reports on Geodesy and Geoinformatics

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Traditional Food Plants in the Face of Global Change: Past, Present, and Future

Anju

Kumar

2022

Annual Plant Reviews Online

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Traditional food plant s ( TFP s) are highly nutritious and contain health beneficial metabolites, vitamins, minerals, and other nutrients. Various communities across the globe, especially in the rural areas, rely on the locally available TFPs for their nutritional and health‐related needs. The TFPs are considered important because they are locally available alternative sources of food and nutrition. However, they remain largely neglected to date despite their huge nutritional importance and potential. Interest in TFPs has recently increased especially because of the disruptions of the food supply chains caused by recurrent lockdowns during the COVID‐19 pandemic. Interruptions to long‐distance food supply chains expose the vulnerabilities associated with the globalised interconnected food systems. Recent literature suggests that localised food systems are more resilient, sustainable, and adaptive especially during times of pandemics, civil unrest, and conflicts. Since TFPs offer several benefits over the globalised mainstream food systems, it is important to explore their roles and develop research strategies to provide insights and to support their more widespread use in future. Scientists and food and nutrition experts also suggest that the post‐pandemic situation will compel food scientists, breeders, and crop bioengineers to realign their approach towards food production and consumption systems that are more locally suited. Significant knowledge has been gained through basic research on the diversity and availability of a plethora of TFPs in various parts of the world, including India, Africa, and South America. Limited genetic and genomic studies have also been performed with TFPs, and they provide very important insights into important genes and other regulators governing nutritional and stress‐resilient traits in neglected crops. Some crops are shown to have better traits than the currently available mainstream crops. Many studies have pointed towards cultivation, domestication, and improvement of regionally important TFPs for better climate resilience, sustainability, and adaptability. While very few TFPs have been genetically edited successfully, and gene‐edited TFPs are not commercially available yet, there is increasing evidence that there is a huge potential for the revitalisation and introduction of these ancient crops to the mainstream food baskets of the public. In this review article, we critically examine the TFPs and their regional importance in the local traditional food systems. The richness of TFPs during the ancient period and various reasons for their disappearance from the food basket, the re‐emergence of TFPs by recognising their importance in the present scenario, and the criteria for utilisation of TFPs to attain food security in the future are discussed comprehensively in the review. We provide a futuristic outlook on the importance, scope, and progress on the improvement of TFPs for valuable traits for ensuring food security of the burgeoning global population.

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Sensors Enabling Precision Spraying in Agriculture: A Case Study

Mitragotri

2023

2023 16th International Conference on Sensing Technology (ICST)

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GNSS Positioning and Navigation - A Foundational Element of Digital Farming

Cited by 3 publications

References 13 publications

A comparative analysis of the performance of various GNSS positioning concepts dedicated to precision agriculture

A comparative analysis of the performance of various GNSS positioning concepts dedicated to precision agriculture

Traditional Food Plants in the Face of Global Change: Past, Present, and Future

Sensors Enabling Precision Spraying in Agriculture: A Case Study

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