Work machine remote control system

Abstract

A work machine remote control system includes a sensor data reception unit that receives detection data of an attitude of working equipment included in a work machine operated by an operation signal from a remote place, an alarm control unit that outputs an alarm control signal when it is determined, based on the detection data, that the working equipment is approaching or has reached an end position in a movable range, and an alarm device that is provided in the remote place and outputs an alarm based on the alarm control signal from the alarm control unit.

1 . A work machine remote control system comprising:
 a sensor data reception unit configured to receive detection data of an attitude of working equipment included in a work machine operated by an operation signal from a remote place;   an alarm control unit configured to output an alarm control signal when it is determined, based on the detection data, that the working equipment is approaching or has reached an end position in a movable range; and   an alarm device provided in the remote place and configured to output an alarm based on the alarm control signal from the alarm control unit.   
     
     
         2 . The work machine remote control system according to  claim 1 , wherein
 when the working equipment is approaching the end position in an end zone including the end position in the movable range, a speed of the working equipment is reduced, and   the alarm control unit outputs the alarm control signal when it is determined, based on the detection data, that the working equipment is approaching the end position in an alarm zone adjacent to the end zone.   
     
     
         3 . The work machine remote control system according to  claim 2 , wherein
 the alarm control unit outputs the alarm control signal when it is determined, based on the detection data, that the working equipment is approaching the end position in the end zone.   
     
     
         4 . The work machine remote control system according to  claim 2 , wherein
 the alarm control unit outputs the alarm control signal when it is determined, based on the detection data, that the working equipment has reached the end position.   
     
     
         5 . A work machine remote control system comprising:
 a sensor data reception unit configured to receive detection data related to working equipment included in a work machine operated by an operation signal from a remote place;   an alarm control unit configured to output an alarm control signal when it is determined, based on the detection data, that a level of an impact acting on the working equipment is equal to or greater than a threshold; and   an alarm device provided in the remote place from the work machine and configured to output an alarm based on the alarm control signal from the alarm control unit.   
     
     
         6 . The work machine remote control system according to  claim 5 , wherein
 the work machine includes a working equipment attitude sensor that detects an attitude of the working equipment, and   the alarm control unit determines whether the level of the impact is equal to or greater than the threshold based on detection data of the working equipment attitude sensor.   
     
     
         7 . The work machine remote control system according to  claim 6 , wherein
 the work machine includes a hydraulic cylinder that drives the working equipment based on hydraulic oil supplied from a hydraulic pump, and a pressure sensor that detects a pressure of the hydraulic oil in the hydraulic cylinder, and   the alarm control unit determines whether the level of the impact is equal to or greater than the threshold based on detection data of the pressure sensor.