Edge device, connection establishment system, connection establishment method, and non-transitory computer-readable medium

Abstract

An edge device that automatically establishes a connection with a remote monitoring device when an abnormality has occurred in a plant is provided. The edge device includes a controller configured to detect an abnormality on the basis of data regarding an observation target device, and a connection establishment unit configured to establish a connection with a remote monitoring device such that the remote monitoring device is able to remotely access the edge device when the controller has detected the abnormality and determined that the detected abnormality matches a predetermined condition, wherein the remote access is a connection for remotely checking a state of the observation target device, or for enabling a remote manipulation of the observation target device.

1 . An edge device comprising:
 a controller configured to detect an abnormality on the basis of data regarding an observation target device; and   a connection establishment unit configured to establish a connection with a remote monitoring device such that the remote monitoring device is able to remotely access the edge device when the controller has detected the abnormality and determined that the detected abnormality matches a predetermined condition,   wherein the remote access is a connection for remotely checking a state of the observation target device, or for enabling a remote manipulation of the observation target device.   
     
     
         2 . The edge device according to  claim 1 , further comprising a transmitter configured to transmit data regarding the observation target device or information regarding the abnormality. 
     
     
         3 . The edge device according to  claim 2 , wherein the controller is configured to determine a degree of the abnormality on the basis of the data regarding the observation target device,
 the connection establishment unit is configured to establish the connection when the degree of the abnormality determined by the controller is severe, and   the transmitter is configured to transmit the information regarding the abnormality to a preset destination address when the degree of the abnormality determined by the controller is not severe.   
     
     
         4 . The edge device according to  claim 2 , wherein each degree of the abnormality is associated with a preset destination address, and
 the transmitter is configured to transmit preset data content to a destination address corresponding to the degree of the abnormality determined by the controller.   
     
     
         5 . The edge device according to  claim 2 , wherein each degree of the abnormality is associated with preset data content, and
 the transmitter is configured to transmit data content corresponding to the degree of the abnormality determined by the controller to a preset destination address.   
     
     
         6 . The edge device according to  claim 2 , wherein each degree of the abnormality is associated with a preset period, and
 the transmitter is configured to transmit data of a period corresponding to the degree of the abnormality determined by the controller to a preset destination address.   
     
     
         7 . The edge device according to  claim 2 , wherein the data regarding the observation target device stores an observed value and a prediction algorithm,
 the controller is configured to determine whether or not an error between a predicted value based on the prediction algorithm and the observed value is greater than an allowable value,   the connection establishment unit is configured to establish a connection with the remote monitoring device when the error is greater than the allowable value,   the transmitter is configured to transmit information regarding the error to the remote monitoring device,   the edge device further comprises a receiver configured to receive, from the remote monitoring device, update information of the prediction algorithm that the remote monitoring device has generated using the information regarding the error, and   the controller is configured to update the prediction algorithm using the update information.   
     
     
         8 . The edge device according to  claim 2 , wherein the data regarding the observation target device stores an observed value and a prediction algorithm,
 the controller is configured to determine whether or not an error between a predicted value based on the prediction algorithm and the observed value is greater than an allowable value,   the connection establishment unit is configured to establish a connection with the remote monitoring device when the error is greater than the allowable value,   the transmitter is configured to transmit notification regarding the error to the remote monitoring device, such that the remote monitoring device is able to remotely access the edge device and to update the prediction algorithm using information regarding the error.   
     
     
         9 . The edge device according to  claim 1 , wherein the edge device is further connected to a router configured to establish a connection with an external network,
 power of the router is normally off, and   the connection establishment unit is configured to activate the router and establish a connection with the external network when the controller has detected the abnormality.   
     
     
         10 . The edge device according to  claim 1 , further comprising a display unit configured to display data regarding the observation target device. 
     
     
         11 . A connection establishment system comprising:
 a remote monitoring device; and   the edge device according to  claim 1 .   
     
     
         12 . A connection establishment method comprising:
 detecting an abnormality on the basis of data regarding an observation target device; and   establishing a connection with a remote monitoring device such that the remote monitoring device is able to remotely access the edge device when the abnormality has been detected and the detected abnormality has been determined to match a predetermined condition,   wherein the remote access is a connection for remotely checking a state of the observation target device, or for enabling a remote manipulation of the observation target device.   
     
     
         13 . A non-transitory computer-readable medium that stores a program causing a computer of an edge device to execute:
 detecting an abnormality on the basis of data regarding an observation target device; and   establishing a connection with a remote monitoring device such that the remote monitoring device is able to remotely access the edge device when the abnormality has been detected and the detected abnormality has been determined to match a predetermined condition,   wherein the remote access is a connection for remotely checking a state of the observation target device, or for enabling a remote manipulation of the observation target device.