Fig 1.
Layout of inspection robot for belt conveyor.
1-robot walking track; 2-walking track fixed frame; 3-conveyor inspection robot; 4-conveyor roller; 5-conveyor; 6-thermal imaging camera.
Fig 2.
Schematic diagram of infrared thermal imaging.
Fig 3.
Abnormal monitoring flow of belt conveyor roller in coal mine based on thermal infrared image characteristics.
Fig 4.
Result of image preprocessing.
Fig 5.
Structure of idler identification and inspection model.
Fig 6.
CSPNet structure.
Fig 7.
Failure types of conveyor rollers.
Fig 8.
Target recognition of idler.
Fig 9.
Infrared detection image of idler.
Fig 10.
Temperature monitoring data of normal and faulty idlers.
(a) Comparison of temperature at idler bearing. (b) Comparison of surface temperature of idler.
Fig 11.
Temperature monitoring data of idlers at different belt speeds.
(a) Comparison of temperature at idler bearing. (b) Comparison of surface temperature of idler.
Table 1.
Temperature rise coefficient.