Control device for excavator

Abstract

A control device for an excavator is disclosed. The excavator includes an upper slewing body, an attachment provided on the upper slewing body, a slewing mechanism, a lower traveling body, and a blade provided on the lower traveling body. The control device includes circuitry configured to receive an input of an operation command for instructing an operation of the attachment, determine whether a person is detected around the excavator, and cause the excavator to perform an operation of lowering the blade when the person is not detected.

What is claimed is: 
     
         1 . A control device for an excavator, the excavator including an upper slewing body, an attachment provided on the upper slewing body, a slewing mechanism, a lower traveling body, and a blade provided on the lower traveling body, the control device comprising:
 circuitry configured to receive an input of an operation command for instructing an operation of the attachment, determine whether a person is detected around the excavator, and cause the excavator to perform an operation of lowering the blade when the person is not detected.   
     
     
         2 . The control device according to  claim 1 , wherein the circuitry is configured to prohibit the excavator from traveling while performing the operation of lowering the blade. 
     
     
         3 . The control device according to  claim 1 , wherein the circuitry is configured to receive an input of a travel command for instructing the excavator to travel, and cause the excavator to perform an operation of raising the blade. 
     
     
         4 . The control device according to  claim 3 , wherein the circuitry is configured to determine whether both ends of a tip portion of the blade are in contact with a ground after the operation of lowering the blade is performed, and output an alarm when the both ends are not in contact with the ground. 
     
     
         5 . The control device for an excavator according to  claim 4 , wherein the circuitry is configured to output an alarm for avoiding contact between the blade and the attachment in accordance with a distance between the blade and the attachment when the operation indicated by the operation command is an operation by which an end attachment included in the attachment is located below the lower traveling body. 
     
     
         6 . The control device for an excavator according to  claim 1 , wherein the circuitry is configured to receive an input of a travel command for instructing the excavator to travel, and cause the attachment to perform an operation of raising the attachment.