Abstract: Methods and devices for monitoring and maintaining a health state of an electrical device. The methods can include obtaining a first operation state of the electrical device; rendering a holographic image of the electrical device and a first health state of the electrical device indicated by the first operation state by using a mixed reality device; detecting an action of a first user by using the mixed reality device; in response to that an operation performed by the first user on the electrical device has been detected, performing the operation on an image model of the electrical device in the holographic image to obtain a second operation state after the electrical device is operated; and updating the first health state to a second health state indicated by the second operation state.

Abstract: In some embodiments, there is provided a method for updating a gateway in a substation. The method includes receiving, at a gateway from a server, an update package assigned with a first identifier, the update package including at least one of: a configuration associated with at least one monitoring device connected to the gateway; and an application configurable to collect data from the at least one monitoring device; in response to receiving the update package, determining whether the first identifier matches a second identifier of the gateway; and in response to determining that the first identifier matches the second identifier of the gateway, updating the gateway with the received update package.

Abstract: Embodiments of the present disclosure relate to a data transmission method and associated devices. In the method, data collected by at least one monitoring device in a substation is received at a gateway. Further, a status of a connection between the gateway and a first network is detected, where the first network enables communication between the gateway and a server. Further, in response to detecting a disconnection between the gateway and the first network, the data is sent to a user device via a second network hosted by the gateway to enable the user device to forward the data to the server.

Abstract: In some embodiments, there is provided a method for updating a gateway in a substation. The method includes receiving, at a gateway from a server, an update package assigned with a first identifier, the update package including at least one of: a configuration associated with at least one monitoring device connected to the gateway; and an application configurable to collect data from the at least one monitoring device; in response to receiving the update package, determining whether the first identifier matches a second identifier of the gateway; and in response to determining that the first identifier matches the second identifier of the gateway, updating the gateway with the received update package.

Abstract: Embodiments of the present disclosure relate to a data transmission method and associated devices. In the method, data collected by at least one monitoring device in a substation is received at a gateway. Further, a status of a connection between the gateway and a first network is detected, where the first network enables communication between the gateway and a server. Further, in response to detecting a disconnection between the gateway and the first network, the data is sent to a user device via a second network hosted by the gateway to enable the user device to forward the data to the server.