Real-time control for multi-parametric data fusion and dynamic offset optimization in sensor-based variable rate nitrogen application

Heiß, Andreas; Paraforos, Dimitrios S.; Sharipov, Galibjon M.; Griepentrog, Hans W.

doi:10.1016/j.compag.2022.106893

Cited by 10 publications

(3 citation statements)

References 19 publications

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“…In big data teaching, teachers can use relevant software to build the teaching environment and make full use of the big data function. Teachers categorize the resources that students will use in learning, compile guiding outlines, guide students to establish their own learning garden, and build a ubiquitous learning platform [21][22][23][24][25]. Under the guidance of teachers, students use massive resources to learn actively and use big data to carry out discussions and exchanges to promote their own progress.…”

Section: Introductionmentioning

confidence: 99%

[Retracted] Construction and Application of College English Blended Teaching System Based on Multidata Fusion

Pan

2022

Discrete Dynamics in Nature and Society

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With the rapid development of educational information technology, “online and offline” hybrid teaching has become the main trend of foreign language teaching reform in colleges and universities. The blended teaching mode integrates the traditional teaching mode with modern educational technology and reconstructs the traditional college English teaching mode in the aspects of teaching object, teaching content, teaching method, teaching environment, and teaching evaluation. Based on the multisource data such as students’ learning situation, learning duration, and academic performance, this paper builds a student English learning analysis system that realizes the integration of multisource data, completes the unified processing and analysis of multisource data, and then displays it through the interface. The system helps English teachers to guide students in different degrees according to the students’ English learning situation and academic performance, so that English teachers have a clearer and more comprehensive understanding of students’ learning and living conditions and timely guide students with incorrect learning attitudes, so as to avoid students’ detours.

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Section: Introductionmentioning

confidence: 99%

[Retracted] Construction and Application of College English Blended Teaching System Based on Multidata Fusion

Pan

2022

Discrete Dynamics in Nature and Society

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“…Subsequently, Bayesian estimation is used to first summarize the urban environment sample information to obtain an uncertain probability. Then, it is combined with the new urban environment sample information, and the obtained prior probability is repeatedly corrected, and finally, the posterior distribution is obtained [19]. The data fusion method is commonly used in multi-sensor high-level data fusion.…”

Section: Data Fusion Algorithms Output Urban Environmental Datamentioning

confidence: 99%

Application of Multi-Data Fusion Technology in Intelligent Design of Urban Environment

Yang

2023

Applied Mathematics and Nonlinear Sciences

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This paper adopts multi-data fusion technology to design urban environmental intelligence. First, store the information collected by the reader communication module and receive and analyze the urban environmental monitoring data sent by the handheld RF reader. Secondly, calculate the mean value of environmental data by weighted average, summarize the sample information by combining it with Bayesian estimation, and fuse the values of the multi-sensor data. Finally, D-S evidence inference is utilized to expand Bayes and enhance the degree of trust in the focal element. The results show that the utilization value of multi-data fusion technology can reach 1000, with the growth of time, the public urban environment concern reaches 900 times, the level of intelligent design of the urban environment is improved faster, and the overall effect is good.

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“…A horizontal disc-type fertilizerspraying device is used for spraying with a large working width [5]. These devices have been previously studied and are widely used in countries such as Europe and America [6]. Patterson [7] conducted a study on the movement of fertilizer on a fertilizer tray.…”

Section: Introductionmentioning

confidence: 99%

Design and Test of Disturbed Fertilizer Strip-Ejection Device with Vertical Pendulum Bar Based on Discrete Element Method

Chen,

Deng,

Liu

et al. 2024

Agriculture

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Fertilizer can improve the yield of crops per unit area, and uniform fertilizer discharge can improve the fertilizer utilization rate. Therefore, it is meaningful to improve the performance of fertilizer-discharge devices in order to improve the modernization level of crop field fertilizer management. To address the problems of operational smoothness, stability and poor uniformity of fertilizer discharge, and other difficult problems encountered with strip fertilizer-discharge devices, this study designs a disturbed fertilizer strip-discharge device with a vertical pendulum. The main factors affecting the performance of fertilizer discharge were the wedge angle of the push-disturbing main pendulum bar (PMPB), the inclination angle of the aided-stirring pendulum pick (APP), the flow gap of the pendulum bar (FGPB), and the operation frequency of the swing-rod combination (SRC). The discrete element method (DEM) was used to establish a simulation model of the fertilizer device to explore the influence of the main factors on the performance of fertilizer discharge, with the coefficient of variation (CV) of fertilizer discharge uniformity and fertilizer discharge accuracy (FDA) used as the evaluation indices. The results show that the factors affecting the CV of fertilizer discharge uniformity and FDA were, in order of priority, the operation frequency of the SRC, the FGPB, the wedge angle of the PMPB, and the inclination angle of the APP. The optimal parameters after rounding were as follows: the wedge angle of the PMPB was 45°, the inclination angle of the APP was 46°, the operation frequency of the SRC was 188 times/min, and the FGPB was 4.5 mm. At this point, the model predicted that the CV of fertilizer discharge uniformity would be 10.53%, and that the FDA would be 3.19%. Using the optimal parameters for bench test verification, it was found that the wedge angle of the PMPB was 45°, the inclination angle of the APP was 46°, the operation frequency of the SRC was 188 times/min, the FGPB was 4.5 mm, the CV of the uniformity of the fertilizer discharge was 11.06%, and the FDA was 3.51%. In the test, the fertilizer-discharge device was stable and had good adaptability to different fertilizers. The results of this study can provide a theoretical reference for the development of precision strip-fertilizer application devices.

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Real-time control for multi-parametric data fusion and dynamic offset optimization in sensor-based variable rate nitrogen application

Cited by 10 publications

References 19 publications

[Retracted] Construction and Application of College English Blended Teaching System Based on Multidata Fusion

[Retracted] Construction and Application of College English Blended Teaching System Based on Multidata Fusion

Application of Multi-Data Fusion Technology in Intelligent Design of Urban Environment

Design and Test of Disturbed Fertilizer Strip-Ejection Device with Vertical Pendulum Bar Based on Discrete Element Method

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