LEARNING DIAGNOSTIC SYSTEM, STATE DIAGNOSTIC DEVICE, AND STATE LEARNING DEVICE FOR WORKING MACHINE
First Claim
1. A learning diagnostic system for a working machine that includes a machine body mounted with a working implement, the learning diagnostic system detecting a state quantity of the working machine with a sensor and inputting the data as running data to thereby detect a fault in an operating state of the working machine using the running data, the system comprising:
- a state learning device for sorting the inputted running data into running data when the operating state of the working machine is a steady operating state and running data when the operating state of the working machine is a transient operating state, learning the operating state of the working machine based on the sorted running data, and generating steady state information and transient state information, each including a permissible error; and
a state diagnostic device for determining, using the inputted running data and the steady state information including the permissible error and generated in the state learning device, whether the operating state of the working machine related to the inputted running data is the steady operating state or the transient operating state, making a fault determination in the determined steady operating state, and using the transient state information including the permissible error and generated in the state learning device to make a fault determination in the determined transient operating state.
1 Assignment
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Accused Products
Abstract
A learning diagnostic system for a working machine is capable of making a fault diagnosis of the working machine universally relative to various types of sensor information, and preventing a failure in the working machine by enabling a fault diagnosis even in a transient operating state that represents a transitional state between operating states.
- A state learning device 201 sorts inputted sensor data 101a into one under a steady operating state and one under a transient operating state, and generates, through learning, steady state data 102a and intermediate state data 103a, each including a permissible error. A state diagnostic device 202 uses the steady state data 102a to determine whether an operating state of the working machine related to the inputted sensor data is the steady operating state or the transient operating state, and make a fault determination in the steady operating state. The state diagnostic device 202 also uses the intermediate state data 103a to make a fault determination in the determined transient operating state. The intermediate state data 103a also includes intermediate point information.
26 Citations
14 Claims
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1. A learning diagnostic system for a working machine that includes a machine body mounted with a working implement, the learning diagnostic system detecting a state quantity of the working machine with a sensor and inputting the data as running data to thereby detect a fault in an operating state of the working machine using the running data, the system comprising:
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a state learning device for sorting the inputted running data into running data when the operating state of the working machine is a steady operating state and running data when the operating state of the working machine is a transient operating state, learning the operating state of the working machine based on the sorted running data, and generating steady state information and transient state information, each including a permissible error; and a state diagnostic device for determining, using the inputted running data and the steady state information including the permissible error and generated in the state learning device, whether the operating state of the working machine related to the inputted running data is the steady operating state or the transient operating state, making a fault determination in the determined steady operating state, and using the transient state information including the permissible error and generated in the state learning device to make a fault determination in the determined transient operating state. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A state learning device for a working machine, which is used in a learning diagnostic system, the working machine including a machine body mounted with a working implement, the learning diagnostic system detecting a state quantity of the working machine with a sensor and inputting the data as running data to thereby detect a fault in an operating state of the working machine using the running data, the state learning device comprising:
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means for generating steady state information including a permissible error based on the running data when the operating state of the working machine is a steady operating state by sorting the inputted running data into running data when the operating state of the working machine is the steady operating state and running data at other time; and means for generating the transient state information including a permissible error based on the running data at other time as sorted in the steady state information generating means, the running data being used as running data when the working machine is in the transient operating state. - View Dependent Claims (8, 9, 10)
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11. A state diagnostic device for a working machine, which is used in a learning diagnostic system, the working machine including a machine body mounted with a working implement, the learning diagnostic system detecting a state quantity of the working machine with a sensor and inputting the data as running data to thereby detect a fault in an operating state of the working machine using the running data and steady state information and transient state information, each including a permissible error and generated in a state learning device, the state diagnostic device comprising:
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steady state determining means for determining whether the operating state of the working machine related to the inputted running data is a steady operating state or a transient operating state by using the steady state information generated in the state learning device, and making a fault determination in the determined steady operating state; transient state retrieving means for searching through the transient state information generated in the state learning device by using the running data in the steady operating state determined in the steady state determining means, and extracting corresponding transient state information; supplementary state generating means for generating supplementary data based on the transient state information extracted in the transient state retrieving means; and supplementary state determining means for making a fault determination based on the running data in the transient operating state determined in the steady state determining means and the supplementary data generated in the supplementary state generating means. - View Dependent Claims (12, 13, 14)
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Specification