{"title":"Effectiveness of optical, digital and hybrid zoom equipped drones for use in reading livestock ear tags for individual animal identification.","authors":"John S Church, Mathis Gegout, Paul J Adams","doi":"10.1139/dsa-2023-0041","DOIUrl":"https://doi.org/10.1139/dsa-2023-0041","url":null,"abstract":"Predicting how advertised zoom capabilities of commercially available drones being deployed for animal management will perform can be difficult, as promotional and marketing materials supplied by the manufacturer do not necessarily reflect real world performance. We compared our ability to read livestock ear tags used for individual animal identification using various drone models with differing zoom capabilities. Drone models were assessed at various distances using a veterinary bovine head model to determine their ability to read livestock ear tags of various colors and sizes, and to establish observational distance limits. Results indicate that while drones that primarily utilize optical zoom are preferable, newer model drones equipped with hybrid zoom cameras that utilize computational photography are superior to five-year-old drone models equipped with only digital zoom cameras. Recently released drone models are now capable of reading livestock ear tags at distances exceeding sixty meters and perform equivalent to binoculars in terms of discerning numbers printed on various colored livestock ear tags.","PeriodicalId":202289,"journal":{"name":"Drone Systems and Applications","volume":" 40","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138963640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ting-Kai Hong, Chung-Yan Lin, Huan-Jung Lin, N. Ruseno
{"title":"Taiwan Solar-Powered UAV Flight Endurance Record","authors":"Ting-Kai Hong, Chung-Yan Lin, Huan-Jung Lin, N. Ruseno","doi":"10.1139/dsa-2023-0014","DOIUrl":"https://doi.org/10.1139/dsa-2023-0014","url":null,"abstract":"Solar-powered UAVs possess a unique capability to maintain continuous flight for hours, days, weeks, or even months. This research aims to develop a solar-powered UAV that can fly at low altitudes with extended endurance to establish a new record for full-day continuous flight in Taiwan. The UAV was designed with a 4.7-meter wingspan and a T-tail configuration to achieve this goal, utilizing materials and components available in the current market. The flight test was conducted on June 2, 2022, resulting in a remarkable 21 hours and 50 minutes of flight endurance, setting a record in Taiwan. While the full-day flight endurance target was not met, the UAV demonstrates the potential to achieve greater endurance with improvements in its construction and operational aspects.","PeriodicalId":202289,"journal":{"name":"Drone Systems and Applications","volume":"30 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138587809","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
K. Bierlich, Drummond Wengrove, C. N. Bird, Robert Davidson, Todd Chandler, Leigh G Torres, Mauricio Cantor
{"title":"LidarBoX: a 3D-printed, open-source altimeter system to improve photogrammetric accuracy for off-the-shelf drones","authors":"K. Bierlich, Drummond Wengrove, C. N. Bird, Robert Davidson, Todd Chandler, Leigh G Torres, Mauricio Cantor","doi":"10.1139/dsa-2023-0051","DOIUrl":"https://doi.org/10.1139/dsa-2023-0051","url":null,"abstract":"Drones provide a privileged birds’-eye view for collecting high-resolution imagery for morphometric and behavioral sampling of animals. Biologically meaningful measurements extracted from overhead images require an accurate estimate of altitude, but current commercial drones include inaccurate barometer estimates. Recent proposals for coupling altimeter systems to drones have provided customized, open-source solutions; yet assembling such altimeter systems requires advanced technical skills, thereby potentially limiting their use. Here, we built upon recent advances to provide a 3D printed enclosure for an altimeter system that is inexpensive, self-contained, easy to set-up, and transferable across commercial drones. We depart from a published, successful data logger system composed of a GPS and LiDAR sensor, and design a more compact and self-powered version (“LidarBoX”) that easily attaches to a variety of commercial drones. We compare flight times with/without LidarBoX attached, test flight maneuverability and performance, and validate reliability of measurement accuracy. To make LidarBoX accessible, we provide an open-source repository with design code and files and a how-to assemble guide for non-specialists. We hope this work helps popularize LiDAR altimeter systems on commercial drones to improve the accuracy and reliability of drones as a sampling platform for ecology and wildlife research.","PeriodicalId":202289,"journal":{"name":"Drone Systems and Applications","volume":"139 13","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138598904","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
B. Dorin, Andrew G. Reynolds, Hyun-Suk Lee, Marilyne Carrey, A. Shemrock, M. Shabanian
{"title":"Detecting cool-climate Riesling vineyard variation using unmanned aerial vehicles and proximal sensors","authors":"B. Dorin, Andrew G. Reynolds, Hyun-Suk Lee, Marilyne Carrey, A. Shemrock, M. Shabanian","doi":"10.1139/dsa-2023-0024","DOIUrl":"https://doi.org/10.1139/dsa-2023-0024","url":null,"abstract":"The ability to detect and respond to vineyard spatial variation can lead to improved management – a practice known as precision viticulture. The goal of this study was to determine if remote sensors can enhance precision viticulture applications by detecting vineyard spatial variation. The hypothesis was that differences in vine spectral reflectance, as detected by remote sensors, would be associated with variation in viticultural variables due to known relationships with vine size, structure, and pigmentation. Riesling grapevines were geolocated within six commercial vineyards across Niagara, Ontario. Water status, vine size, winter hardiness, virus titer, yield components, and berry composition were measured from these vines. Remote sensing technologies subsequently collected multispectral data by unmanned aerial vehicle (UAV) and by proximal sensing technology (GreenSeeker™) which were transformed into the Normalized Difference Vegetation Index (NDVI). Direct relationships between NDVI and vine size, water status, yield, berry weight, and titratable acidity were observed as well as inverse relationships between NDVI and Brix and potentially-volatile terpenes. Remote sensing demonstrated the ability to detect vineyard areas differing in measures of vine health, yield, and berry composition in certain sites and years, however, more research is needed to determine when these technologies should be used for precision viticulture applications.","PeriodicalId":202289,"journal":{"name":"Drone Systems and Applications","volume":"24 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138602449","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Cooperative Aerial Search by an Innovative Optimized Map Sharing Algorithm","authors":"Samin Karimi, F. Saghafi","doi":"10.1139/dsa-2023-0025","DOIUrl":"https://doi.org/10.1139/dsa-2023-0025","url":null,"abstract":"In this paper, the problem of cooperative search and tracking by multiple flying vehicles is studied. An algorithm is proposed based on an optimal planning by minimizing a suitably defined cost function. In order to define the cost function, three maps are proposed: uncertainty map, detection probability map, and emitter map. In the uncertainty map, the geometrical status of the vehicle with respect to the region is considered and its suitability is measured. The detection probability map is defined such that the group of vehicles can detect new emitters that appear in their sensors’ coverage. Finally, the emitter map is a tool to keep tracking the detected emitters with acceptable error, while searching the region. The assumption of the vehicles being equipped with only one commonly used radar range indicator sensor, makes the proposed algorithms more applicable in the real world for a cost effective system. The efficiency of the proposed method from the search, detection and tracking points of view is verified through simulations.","PeriodicalId":202289,"journal":{"name":"Drone Systems and Applications","volume":"32 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139229531","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Adam Mathews, Kunwar K. Singh, Anthony R. Cummings, Stephanie R. Rogers
{"title":"Fundamental practices for drone remote sensing research across disciplines","authors":"Adam Mathews, Kunwar K. Singh, Anthony R. Cummings, Stephanie R. Rogers","doi":"10.1139/dsa-2023-0021","DOIUrl":"https://doi.org/10.1139/dsa-2023-0021","url":null,"abstract":"Drone remote sensing research has surged over the last few decades as the technology has become increasingly accessible. Relatively easy to operate drones put data collection directly in the hands of the remote sensing community. While an abundance of remote sensing studies using drones in myriad areas of application (e.g., agriculture, forestry, geomorphology) have been published, little consensus has emerged regarding best practices for drone usage and incorporation into research. Therefore, this paper synthesizes relevant literature, supported by the collective experiences of the authors, to propose ten fundamental practices for drone remote sensing research including: (1) focus on your question, not just the tool, (2) know the law and abide by it, (3) respect privacy and be ethical, (4) be mindful consumers of technology, (5) develop or adopt a data collection protocol, (6) treat Structure from Motion (SfM) as a new form of photogrammetry, (7) consider new approaches to analyze hyperspatial data, (8) think beyond imagery, (9) be transparent and report error, and (10) work collaboratively. These fundamental practices, meant for all remote sensing researchers using drones regardless of area of interest or disciplinary background, are elaborated upon and situated within the context of broader remote sensing research.","PeriodicalId":202289,"journal":{"name":"Drone Systems and Applications","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125704149","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jurjen van der Sluijs, E. Saiet, C. Bakelaar, Andrew Wentworth, R. Fraser, S. Kokelj
{"title":"Beyond visual-line-of-sight (BVLOS) drone operations for environmental and infrastructure monitoring: a case study in northwestern Canada","authors":"Jurjen van der Sluijs, E. Saiet, C. Bakelaar, Andrew Wentworth, R. Fraser, S. Kokelj","doi":"10.1139/dsa-2023-0012","DOIUrl":"https://doi.org/10.1139/dsa-2023-0012","url":null,"abstract":"Aerial drones typically operate over small geographic areas (<5 km2), yet environmental and infrastructure monitoring applications often require collection of data over larger areas. Challenges to drone deployments, in areas with people and frequent air traffic, include aviation regulations that require missions to adhere to within-visual-line-of-sight (VLOS) conditions, thereby limiting mission extents. The performance and fuel consumption of longer drone missions could justify investment to advance future beyond-visual-line-of-sight (BVLOS) data acquisitions. This work summarizes airspace deconfliction techniques, which allowed testing of BVLOS capabilities in relatively busy airspace in northwestern Canada. Drone missions were conducted with a Griffon SeaHunter capturing high resolution imagery covering more than 550 km2 along 6200 km of flight lines, increasing conventional drone data coverage by two orders of magnitude. BVLOS hourly endurance was nearly double relative to light aviation mapping aircraft, providing a suitable range for extended monitoring operations (1,000-1,200 km). Fuel consumption (L/100km) also differed substantially, with SeaHunter using 9 % to 16 % of conventional mapping aircraft (84% to 91% savings). Finally we summarize lessons learned to further stimulate BVLOS adoption internationally. Opportunities will arise as BVLOS drones will increasingly be operated within a global context of transitions towards low-carbon emission economies.","PeriodicalId":202289,"journal":{"name":"Drone Systems and Applications","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114917798","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Effects of Non-Planar Slicing Techniques and Carbon Fibre Material Additives on Mechanical Properties of 3D-Printed Drone Propellers","authors":"M. Palmer, J. Laliberté","doi":"10.1139/dsa-2023-0007","DOIUrl":"https://doi.org/10.1139/dsa-2023-0007","url":null,"abstract":"Propeller parameters and geometry can dramatically influence the performance of a drone and its ability to complete a mission. Though many off-the-shelf propeller choices exist, operators in the field may not be able to stock suitable options for any possible scenario and are often forced to fly with a sub-optimal propeller. Modern desktop 3D printers are relatively portable, highly capable, and simple to operate, offering the chance to rapidly manufacture propellers tailored to specific missions. This research evaluates how two recent advances in fused filament fabrication (FFF) 3D printing could affect the mechanical viability of printed propellers. Non-planar slicing is a model slicing technique which attempts to address roughness issues when printing the shallow three-dimensional curvature found on many propeller blades. For further improvement, polymer filaments with short-chopped carbon fibre additives were compared against their fibre-free counterparts. Test coupons were subjected to tests simulating the thrust and impact loads a propeller might experience during flight. Under thrust loading, the material with carbon fibre additives showed a significant performance advantage. During impact tests, both non-planar slicing (65% average improvement) and carbon fibre material additives (20% average improvement) demonstrated performance gains over their more traditional counterparts.","PeriodicalId":202289,"journal":{"name":"Drone Systems and Applications","volume":"106 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122623832","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. Saied, Mohammad Kassem, H. Mazeh, H. Shraim, C. Francis
{"title":"Fault Tolerance Evaluation of Model-Free Controllers With Application To Unmanned Aerial Vehicles","authors":"M. Saied, Mohammad Kassem, H. Mazeh, H. Shraim, C. Francis","doi":"10.1139/dsa-2022-0048","DOIUrl":"https://doi.org/10.1139/dsa-2022-0048","url":null,"abstract":"Although important improvements in the area of robust control of nonlinear systems have been presented in the literature, most of the developed controllers suffer from complexity and large dependency on accurate mathematical formulation of the models. Recently, model-free robust control techniques were introduced and have shown good performance when applied to multi-input multi-output systems. The model-free approach is characterized by the nonuse of any prior knowledge about the underlying structure and/or associated parameters of the dynamical system. Therefore, the major criteria for assessing the effectiveness of these controllers are related to their ability to handle unknown inputs and disturbances, as well as achieving the desired tracking performance in presence of faults and malfunctions. This work considers the development of robust fault-tolerant controllers based on the model-free approach and their application to multirotor unmanned aerial vehicles systems. The different controllers based on intelligent proportional-derivative (iPD), intelligent backstepping (iBackstepping) and adaptive control are compared in terms of performance, ease of implementation and parameters tuning. The simulated results, tested on Matlab/Simulink on a full nonlinear model of a hexarotor UAV, validate the theoretical advantages of the adaptive approach with respect to multiple criteria such as improved tracking performance in case of existence of actuators faults when compared to the iPD and iBackstepping control methods at the cost of increased complexity","PeriodicalId":202289,"journal":{"name":"Drone Systems and Applications","volume":"1 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124531059","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
I. Fasterholdt, M. Knudsen, Nicolai From, M. Frederiksen
{"title":"Future Healthcare Logistics: A Survey of the Public Opinion on Drones in Denmark","authors":"I. Fasterholdt, M. Knudsen, Nicolai From, M. Frederiksen","doi":"10.1139/dsa-2022-0050","DOIUrl":"https://doi.org/10.1139/dsa-2022-0050","url":null,"abstract":"Drones are expected to become widespread in society, making public readiness an important prerequisite for successfully unleashing drones. This article investigates Danish citizens’ opinions on drones across varying fields of application and, specifically, six potential cases of healthcare logistics. Survey data representative of age, gender and geography were collected and included information about respondents’ background, knowledge level of drones and opinions on different drone use cases. Data were analysed with frequency tables and bivariate cross-tabulation. 1,004 Danish adults completed the survey. Although other fields of application received higher levels of support, a majority of the respondents were positive towards using drones for healthcare logistics. Transportation of medicine and blood samples between hospitals were the most accepted healthcare use cases. Support varies across age with the highest support found in the eldest age group. Also, the more citizens report to know about drones, the more they tend to support using them. The results suggest that policymakers and firms must be attentive towards the public opinion on drones and seek insights into what citizens regard as noble purposes of using drones. Moreover, citizens must become more acquainted with drones, as this will likely boost public support.","PeriodicalId":202289,"journal":{"name":"Drone Systems and Applications","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128865013","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}