WORK MACHINE, CONTROL SYSTEM FOR WORK MACHINE, AND CONTROL METHOD FOR WORK MACHINE
First Claim
1. A work machine including a tank which stores liquid, the work machine comprising:
- a calculation unit configured to obtain a difference between an amount of the liquid inside the tank acquired at a first timing when the work machine stops operating and an amount of the liquid inside the tank acquired at a second timing after a timing when a key switch of the work machine is turned ON for a first time after the first timing; and
a notification unit configured to notify abnormality information indicating occurrence of abnormal reduction of the liquid inside the tank in a case where an operating time of the work machine during a period from the first timing to the second timing is equal to or smaller than a first threshold and also the difference is equal to or larger than a second threshold, and further configured not to notify the abnormality information in a case where the operating time is larger than a first threshold.
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Accused Products
Abstract
A work machine includes a tank that stores liquid. The work machine includes a calculation unit configured to obtain a difference between an amount of the liquid inside the tank acquired at a first timing and an amount of the liquid inside the tank acquired at a second timing after the first timing, and a notification unit configured to notify abnormality information indicating occurrence of abnormality related to the tank in the case where an operating time of the work machine during a period from the first timing to the second timing is equal to or smaller than a first threshold and also the difference is equal to or larger than a second threshold, and further configured not to notify the abnormality information in the case where the operating time is larger than a second threshold.
8 Citations
12 Claims
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1. A work machine including a tank which stores liquid, the work machine comprising:
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a calculation unit configured to obtain a difference between an amount of the liquid inside the tank acquired at a first timing when the work machine stops operating and an amount of the liquid inside the tank acquired at a second timing after a timing when a key switch of the work machine is turned ON for a first time after the first timing; and a notification unit configured to notify abnormality information indicating occurrence of abnormal reduction of the liquid inside the tank in a case where an operating time of the work machine during a period from the first timing to the second timing is equal to or smaller than a first threshold and also the difference is equal to or larger than a second threshold, and further configured not to notify the abnormality information in a case where the operating time is larger than a first threshold. - View Dependent Claims (2, 3, 4, 5)
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6. A work machine including a tank which stores liquid, comprising:
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a calculation unit configured to obtain a difference between an amount of the liquid inside the tank acquired at a first timing when a key switch of the work machine is turned OFF and an amount of the liquid inside the tank acquired at a second timing after a timing when the key switch is turned ON for a first time after the key switch was turned OFF; a notification unit configured to notify abnormality information indicating occurrence of abnormal reduction of the liquid inside the tank in a case where an operating time of the work machine during a period from the first timing to the second timing is equal to or smaller than a first threshold and also the difference is equal to or larger than a second threshold, and further configured not to notify the abnormality information in a case where the operating time is larger than a first threshold; a position detector configured to detect a position of the work machine; and a communication device configured to communicate with outside of the work machine, wherein the notification unit notifies the outside of the work machine of the abnormality information and the positional information via the communication device.
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7. A control system for a work machine, comprising:
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a work machine including a tank configured to store liquid, a calculation unit configured to obtain a difference between an amount of the liquid inside the tank acquired at a first timing and an amount of the liquid inside the tank acquired at a second timing after the first timing, a first notification unit configured to notify abnormality information indicating occurrence of abnormal reduction of the liquid inside the tank in a case where an operating time of the work machine from the first timing to the second timing is equal to or smaller than a first threshold and the difference is equal to and larger than a second threshold, and also configured not to notify the abnormality information in a case where the operating time is larger than a first threshold, and a first communication device configured to transmit the abnormality information notified by the notification unit; and a control device including a second communication device configured to receive the abnormality information transmitted from the first communication device, and a second notification unit configured to notify the abnormality information received by the second communication device. - View Dependent Claims (8, 9)
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10. A control method for a work machine including a tank which stores liquid, comprising:
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obtaining a difference between an amount of the liquid inside the tank acquired at a first timing and an amount of the liquid inside the tank acquired at a second timing after the first timing; notifying abnormality information indicating occurrence of abnormal reduction of the liquid inside the tank in a case where an operating time of the work machine during a period from the first timing to the second timing is equal to or smaller than a first threshold and the difference is equal to or larger than a second threshold; and not notifying the abnormality information in a case where the operating time of the work machine is larger than a first threshold. - View Dependent Claims (11, 12)
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Specification