Table 1 Sensor installation scheme.

From: Intelligent evaluation of coal mine solid filling effect using fuzzy logic and improved D-S evidence theory

Perceived Object

Sensor

Measurement Variable

Filling

Material

Radar Distance Sensor

Material Accumulation Height

Ultrasonic Sensor

Position of Filling Material

Weight Sensor

Amount of Filling Material Dispensed

Hydraulic

Support

Base Angle Sensor

Base Inclination Angle

Four-Link 1 Angle Sensor

Four-Link 1 Inclination Angle

Four-Link 1 Stroke Sensor

Four-Link 1 Extension

Four-Link 2 Angle Sensor

Four-Link 2 Inclination Angle

Four-Link 2 Stroke Sensor

Four-Link 2 Extension

Compaction

Mechanism

Angle Sensor

Pushing Angle

Speed Sensor

Pushing Speed

Stroke Sensor

Compaction Mechanism Extension