Fig 1.
Sugarcane-cutting agricultural requirements.
1. leaf scar; 2. sugarcane buds; 3. sugarcane seed; 4. node area; 5. internodes area.
Fig 2.
3D model showing the main components of the proposed machine.
Fig 3.
Laboratory test of the ASSCM prototype.
Fig 4.
Three main views of the ASSCM show the main dimensions.
Fig 5.
Main components of the sugarcane feeding mechanism.
Fig 6.
The sugarcane feeding system of the ASSCM.
(a): Sugarcane stalk between the upper and lower plastic rollers; (b) Side view of the feeding system showing the power transmission system from the stepper motor to the three lower plastic rollers.
Fig 7.
Different pins of the color sensor [39].
Fig 8.
Main components of sugarcane node cutting system.
Fig 9.
Static stress analysis of sugarcane cutting [26].
Fig 10.
Principle of operation of the SSCMU.
H is the height of the sugarcane seeds guiding tube, and D is the diameter of the guiding tube.
Fig 11.
The working process of cutting sugarcane seeds.
Table 1.
Photodiodes characteristics [33].
Fig 12.
Three sugarcane stalk samples with hand-colored node.
(a): Black hand-colored nodes; (b): Blue hand-colored nodes; and (c): Red hand-colored nodes.
Fig 13.
Three sugarcane stalk samples with hand-colored nodes.
(a): Blue hand-colored nodes with 10 mm color width; (b): Blue hand-colored nodes with 7 mm color width; and (c): Blue hand-colored nodes with 3 mm color width.
Fig 14.
Effect of black hand-colored nodes on the three-color channels (R, G and B) of the RGB color sensor.
Fig 15.
Effect of red hand-colored nodes on the three-color channels (R, G and B) of the RGB color sensor.
Fig 16.
Effect of BLUE colored nodes on the three-color channels (R, G and B) of the RGB color sensor.
Fig 17.
Effect of colored nodes (black, red and blue) on the RGB color channels (R, G and B) of the color sensor.
Fig 18.
Effect of the feeding system speed on the RGB color channels (R, G and B) of the color sensor.
Fig 19.
Effect of height of the RGB color sensors on the RGB color channels (R, G and B) of the color sensor.
Fig 20.
Effect of width of color marker (10, 7 and 3 mm) on the RGB color channels (R, G and B) of the color sensor.
Table 2.
Comparison of the obtained results of the RGB color sensors with other technologies.