| Full text | |
| Author(s): |
Velasquez, A. E. B.
[1]
;
Higuti, V. A. H.
[2]
;
Guerrero, H. B.
[3]
;
Gasparino, M. V.
[2]
;
Magalhaes, D. V.
[2]
;
Aroca, R. V.
[4]
;
Becker, M.
[2]
Total Authors: 7
|
| Affiliation: | [1] Univ Illinois, Dept Agr & Biol Engn, Urbana, IL 61801 - USA
[2] Univ Sao Paulo, Sao Carlos Sch Engn, Dept Mech Engn, Sao Carlos, SP - Brazil
[3] Antonio Narino Univ, Dept Elect Engn, Villavicencio, Meta - Colombia
[4] Univ Fed Sao Carlos, Dept Mech Engn, Sao Carlos, SP - Brazil
Total Affiliations: 4
|
| Document type: | Journal article |
| Source: | PRECISION AGRICULTURE; v. 21, n. 2, p. 349-368, APR 2020. |
| Web of Science Citations: | 1 |
| Abstract | |
Severe working conditions, the cost reduction need and production growth justify the adoption of technological techniques in agricultural production. Currently, Global Navigation Satellite System (GNSS) based navigation systems are very popular in agriculture. However, relying only on GNSS data and the availability of crop maps that also need to be updated may become a problem. One may face lack of GNSS satellite signal during the path and the navigation system may fail. As an alternative, this paper presents the modeling, development and validation of a reactive navigation system for agricultural fields based on a frontal light detection and ranging (LiDAR) sensor and a H infinity robust controller. A small-scale mobile robot (Helvis3) was used to validate the controllers and carry out experiments in both controlled and farm scenarios. According to the experimental results, the proposed navigation system is capable of controlling the robot displacement between crop rows, keeping it in the middle of the corresponding path with minimum error, despite environmental disturbances. (AU) | |
| FAPESP's process: | 13/07276-1 - CEPOF - Optics and Photonic Research Center |
| Grantee: | Vanderlei Salvador Bagnato |
| Support Opportunities: | Research Grants - Research, Innovation and Dissemination Centers - RIDC |
| FAPESP's process: | 17/10401-3 - Automatically balanced structure for minimally invasive monitoring rover |
| Grantee: | Mateus Valverde Gasparino |
| Support Opportunities: | Scholarships in Brazil - Master |
| FAPESP's process: | 16/09970-0 - Passive suspension rover for minimally invasive monitoring of agricultural areas |
| Grantee: | Vitor Akihiro Hisano Higuti |
| Support Opportunities: | Scholarships in Brazil - Master |