| 摘要 |
A temporary storage device temporarily stores image data acquired by an imaging device. Each of a plurality of sensors detects a plurality of physical quantities relating to an operation state of a shovel. A control device performs an operation abnormality determination based on detection values detected by the sensors. When an operation is determined to be abnormal, the control device transmits the image data, which corresponds to a period from a first time prior to a time at which the operation is determined to be abnormal to at least the time at which the operation is determined to be abnormal, from the temporary storage device to the abnormality information storage device. Therefore, it is easy to specify a cause of abnormality of the operation state of the shovel. |
