Roof support monitoring for longwall system

摘要

#$%^&*AU2019200834B220200723.pdf#####ABSTRACT A method of monitoring a roof support of a longwall mining system, the method comprising: obtaining, with an electronic processor, pressure information for the roof support; determining, with the electronic processor, whether the pressure information is indicative of a first type of pressure failure of the roof support by determining whether the roof support achieved set pressure within a first predetermined amount of time; determining, with the electronic processor, whether the pressure information is indicative of a second type of pressure failure of the roof support, the second type of pressure failure being different than the first type of pressure failure; and generating, with the electronic processor, an alert in response to determining that the pressure information is indicative of at least one selected from the group consisting of the first type of pressure failure and the second type of pressure failure. 11069121_1 (GHMatters) P100832.AU.112/20 RECEIVE TIME PERIOD TO ACHIEVE * TARGET PRESSURE AFTER ROOF B 805, SUPPORT LOWERING RECEIVE DATA FILE FROM THE LAST 810- MONITORING CYCLE FROM EACH ROOF SUPPORT DETERMINE ROOF SUPPORT 815, PRESSURE FOR ALL ROOF SUPPORTS AT EACH TIME POINT IDENTIFY TIME POINTS AT WHICH 820- EACH ROOF SUPPORT BEGINS LOWERING 845 ROOF NO SUPPORTS FAILING TO ACHIEVE TARGET PRESSURE W/IN TIME PERIOD IDENTIFIED? YES 870, GENERATE FLAGGING EVENT FOR FAILED ROOF SUPPORTS) FIG. 10A