Sistema de controle de velocidade sincronizada entre dois veículos agrícolas

Baldo, Rodrigo Fernando Galzerano; Magalhães, Paulo Sérgio Graziano

doi:10.1590/s0103-84782012005000001

Cited by 3 publications

(1 citation statement)

References 7 publications

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“…You should also pay attention to control of directional stability [11] and velocity of movement [12]. Not only one combine harvester can work simultaneously on the field, but it is also possible to use several harvesters, and, therefore, a monitoring and control system designed for group interaction is needed [12,13,14,15]. Each control unit must be directly located at each harvester with an active drive, with which technological operations are performed [16].…”

Section: Introductionmentioning

confidence: 99%

Simulation of the dynamic processes of a low-capacity combine harvester movement

et al. 2020

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To automate the process of harvesting crops, different types of harvesting machines are required. The most common type of machines used to automate ingathering are harvesters. The use of harvesters for collecting grain crops is rational in fields from 2 hectares. On smaller areas it is not profitable and difficult to apply. For applications in small areas, low-capacity harvesters with a throughput of the thresher up to 1 kg/s (small-sized) may be suitable. The purpose of this study is to analyze the cushioning mass control system of a low-capacity unmanned combine harvester using computer simulation, as well as the simulation of directional stability and turning. To calculate vertical vibrations in the Matlab/Simulink software package, a model of a cushioning system for a wheeled agricultural combine was prepared. In the same software package, simulation of directional stability and turning implementation was carried out. The parameters of vibration displacement, vibration velocity and acceleration, as well as the vibration frequency indicators on the operator's seat are determined. Comparison of the simulation results of the initial and corrected direction of movement of the harvester showed that for this model the maximum deviation from the planned path is a maximum of 10%, which is within acceptable limits. The maximum deviation of the harvester from the course does not exceed the permissible values, which is acceptable accuracy to ensure directional stability.

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Section: Introductionmentioning

confidence: 99%

Simulation of the dynamic processes of a low-capacity combine harvester movement

et al. 2020

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Perfil De Carga Do Motor De Colhedoras De Cana-De-Açúcar Antes E Após Adequações

et al. 2016

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RESUMO: O monitoramento do desempenho das colhedoras de cana-de-açúcar ao longo da colheita torna-se essencial para garantir o seu funcionamento e para determinar as adequações do produto para melhor otimizar a operação. Neste sentido, objetivou-se neste trabalho avaliar o perfil de carga do motor de colhedoras de cana-de-açúcar por um determinado período antes e após a adequação do produto às normas do fabricante. O experimento foi realizado utilizando-se quatro colhedoras, sendo os dados coletados pela rede de interconexões entre as diferentes partes da colhedora, podendo ser caracterizados com módulos atuantes durante a coleta de dados. As análises foram baseadas em dois momentos distintos: 0 a 23 dias sem adequação do produto e 25 a 48 dias com a adequação do produto as normas do fabricante. Foi realizada a análise de variância aplicando-se o teste F de Snedecor, com nível de significância de 1%, para se verificar a existência ou não de diferenças antes e após as adequações. A adequação das colhedoras para a operação de colheita em virtude dos fatores estabelecidos pelos fabricantes torna-se fundamental para a otimização do processo. A colhedora 3 trabalhou 36% do tempo com perfil de carga do motor superior a 90%, podendo resultar na não utilização do Fieldcruise e no aumento do consumo horário de combustível por atuar próximo a faixa de rotação de potência máxima.

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Differential correction systems in autopilot RTK differential and geostationary and quality of the sowing pneumatic and mechanical

et al. 2021

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Such as differential correction systems, which are essential for the accuracy of the parallelism of vehicle guidance systems as for the quality of the seeding operation. Therefore, the objective of this work was to evaluate the accuracy of the autopilot - guided passes under RTK differential and geostationary satellite systems involved in pneumatic and mechanical sowing of corn; as well as to analyze the quality of the sowing operation using the plant stand as indicator. Two treatments were analyzed: autopilot RTK (Real Time Kinematic) and geostationary satellites, used in sowing operations. The evaluations were carried out under field. The use of autopilot with RTK differential correction in corn sowing operations offers greater accuracy between passes than that obtained with satellite correction. As to the quality of the sowing operation, the pneumatics show a better regularity in the distribution of corn seeds.

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Sistema de controle de velocidade sincronizada entre dois veículos agrícolas

Cited by 3 publications

References 7 publications

Simulation of the dynamic processes of a low-capacity combine harvester movement

Simulation of the dynamic processes of a low-capacity combine harvester movement

Perfil De Carga Do Motor De Colhedoras De Cana-De-Açúcar Antes E Após Adequações

Differential correction systems in autopilot RTK differential and geostationary and quality of the sowing pneumatic and mechanical

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