Abstract
The endurance performance (EP) of electric multi-rotors spraying drones (EMSDs) is a key technical indicator that ensures the completion of tasks and improves their usefulness. To improve the EP of current EMSD, a test system was designed to determine the EP based on the EMSD test platform, and the performance evaluation method was studied. Firstly, a test model was established to determine the equivalent energy dissipation using the performance-testing platform of the EMSD. Secondly, a multisensory test system was constructed. An attitude sensor, high-power DC power supply, infrared thermal imager, and serial port server were selected. The mounting fixture was designed to meet the universal mounting requirements of drone. In addition, the software LabVIEW was employed to program the code for the controller and the host computer, where functions such as data collection, data processing, communication, and graphical user interface (GUI), were performed reliably in real time. Thirdly, the test method was explored by considering factors such as the power consumption, thermal efficiency ratio, and unit load power consumption rate. In particular, a comprehensive index method and expert consultation weight method were used to evaluate the EP of the EMSD with multiple indexes. Finally, a systematic real-machine test was carried out on the three types of drones that are currently widely used in the market. The results verified the effectiveness and feasibility of the proposed method, which was employed to test and evaluate the EP based on the EMSD performance testing platform. At the same time, it can provide a reference for the development of the EMSD. Keywords: agricultural aviation, multi-rotors spraying drone, endurance performance, assessment method, virtual instrument DOI: 10.25165/j.ijabe.20191202.4348 Citation: Ming R, Zhou Z Y, Luo X W, Lan Y B, He X G, Song C C, et al. Test and evaluation method for endurance performance of electric multi-rotors spraying drones. Int J Agric & Biol Eng, 2019; 12(2): 18–28.
Highlights
Agricultural aviation is an important part of modern agriculture and is considered an important symbol that reflects the degree of agricultural modernization[1,2]
Donateo et al.[16] used simulation software to perform an in-depth analysis of all sub-systems during drone flight, and presented real-time forecasts of the drone charge-consumption model and battery life
Based on the multi-index evaluation method, this paper evaluates the endurance performance (EP) of the electric multi-rotors spraying drones (EMSDs), analyzes the test principle, builds the test system and conducts experimental research, providing a new and effective means for testing and evaluating the EP of EMSD
Summary
Donateo et al.[16] used simulation software to perform an in-depth analysis of all sub-systems during drone flight, and presented real-time forecasts of the drone charge-consumption model and battery life. There is a relatively simple test method for EP in some test standards in China[17] By using this method, the drone can hover until low battery alarm and the battery life can be obtained. The drone can hover until low battery alarm and the battery life can be obtained The limitation of this method is mainly that the actual flight situation of the drone during operation is not considered, and the EP of the drone cannot be accurately tested. Based on the existing research results, this paper analyzes the existing drone life time calculation model. Based on the multi-index evaluation method, this paper evaluates the EP of the EMSD, analyzes the test principle, builds the test system and conducts experimental research, providing a new and effective means for testing and evaluating the EP of EMSD
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