State determination device
A state determination device includes: a primary determination learning model that has learned an outline of a state of a manufacturing device based on a state variable acquired from a manufacturing operation of a product of the manufacturing device; and a secondary determination learning model that has learned a state of the manufacturing device based on a state variable acquired from a predetermined operation pattern set in advance and maintenance information. Then, a primary determination is made on the outline of the state of the manufacturing device using the primary determination learning model based on the state variable acquired from the manufacturing operation of the product, and further, a secondary determination is made on the state of the manufacturing device using the secondary determination learning model based on the state variable acquired from the predetermined operation pattern.
1. A state determination device for determining a state of a manufacturing device based on internal and external state variables acquired from an operation of the manufacturing device, the state determination device comprising:
a processor configured to implement:
a primary determination learning model that has learned an outline of the state of the manufacturing device based on the internal and external state variables acquired from the operation of the manufacturing device for manufacturing a product,
a secondary determination learning model that has learned a state of the manufacturing device based on the internal and external state variables acquired from the operation of the manufacturing device in a predetermined operation pattern set in advance and information on maintenance of the manufacturing device, and
a determination result output unit configured to carry out
a primary determination on the outline of the state of the manufacturing device using the primary determination learning model based on the internal and external state variables acquired from the operation of the manufacturing device for manufacturing the product, and
a secondary determination on the state of the manufacturing device using the secondary determination learning model based on the internal and external state variables acquired from the operation of the manufacturing device in the predetermined operation pattern set in advance executed at a predetermined opportunity,
wherein the processor is configured to control the operation of the manufacturing device based on results of the primary determination and the secondary determination, and
the internal and external state variables for the secondary determination include a detection value of a sensor, the detection value being not included in the internal and external state variables for the primary determination.
2. The state determination device according to claim 1 , wherein
the predetermined opportunity is at least any of within a predetermined period from a time when the primary determination is carried out, within a predetermined number of times of product manufacturing operations of the manufacturing device, and within a predetermined number of times of operations of the manufacturing device.
3. The state determination device according to claim 1 , wherein the state determination device is configured as a part of a controller of the manufacturing device.
4. The state determination device according to claim 1 , wherein the state determination device is configured as a part of a computer connected to a plurality of the manufacturing devices via a network.