Event estimation system and event estimation method

An event estimation system, comprising:

• an upper device;
• and
• a lower controller device comprising first circuitry configured to acquire operation information of a control target device connected to the lower controller device, estimate a presence or absence of an abnormality based on the operation information, hold the operation information for a certain time period, and transmit, based on the presence or absence of an abnormality and to the upper device, the operation information related to the estimation of the presence or absence of the abnormality,
• wherein the upper device has second circuitry configured to receive the operation information from the lower controller device, and operate according to the presence or absence of the abnormality, input, using an upper neural network model, the operation information, output event information, and estimate an event, and
• wherein the upper device is provided separately from an upper controller device comprising third circuitry configured to indirectly control the control target device.

An event estimation method, comprising:

• acquiring, using a lower controller device, operation information of a control target device connected to the lower controller device;
• estimating, using a lower controller device, a presence or absence of an abnormality based on the operation information;
• holding, using a lower controller device, the operation information for a certain time period;
• based on the presence or absence of the abnormality, transmitting, to an upper controller device, the operation information related to the estimation of the presence or absence of the abnormality, the upper controller device being configured to indirectly control the control target device;
• receiving, using the upper controller device, the operation information from the lower controller device;
• and
• estimating, using the upper controller device, an event by causing an upper neural network model to input the operation information and output event information according to the presence or absence of the abnormality.