Abstract: In some embodiments, a data processing apparatus includes a communications unit configured to collect data items from data acquisition apparatuses and transmit the collected data items to clients; and a control unit configured to determine event data from among the collected data items, select the determined event data, compare the selected event data with reference event data to transmit only event data that meets predetermined conditions to the clients.

Abstract: Disclosed herein is an electric power control system including a communication apparatus, a server, and a client, wherein the communication apparatus includes a communication unit operative to communicate with the client and server included in the electric power system to relay the service request received from the client to the server and relay the response to the service request received from the server to the client, a comparison/determination unit operative to compare a timeout time taken for the client to wait for the response to the service request with a processing time taken for the server to process the service request, and a controller operative to control the communication unit and the comparison/determination unit and to announce to the client that the processing time is longer than the timeout time when the processing time is longer than the timeout time.

Abstract: Disclosed embodiments relate to apparatuses, systems, and methods for transmitting/receiving data. In some embodiments, a system includes a server operative to collect data from remote apparatuses and transmit the collected data to a client group, and at least one client group including at least one client, the client group checking data received from the server and acquiring data requested by the client.

Abstract: Disclosed herein is an electric power control system including a communication apparatus, a server, and a client, wherein the communication apparatus includes a communication unit operative to communicate with the client and server included in the electric power system to relay the service request received from the client to the server and relay the response to the service request received from the server to the client, a comparison/determination unit operative to compare a timeout time taken for the client to wait for the response to the service request with a processing time taken for the server to process the service request, and a controller operative to control the communication unit and the comparison/determination unit and to announce to the client that the processing time is longer than the timeout time when the processing time is longer than the timeout time.

Abstract: In some embodiments, a data processing apparatus includes a communications unit configured to collect data items from data acquisition apparatuses and transmit the collected data items to clients; and a control unit configured to determine event data from among the collected data items, select the determined event data, compare the selected event data with reference event data to transmit only event data that meets predetermined conditions to the clients.

Abstract: Disclosed embodiments relate to apparatuses, systems, and methods for transmitting/receiving data. In some embodiments, a system includes a server operative to collect data from remote apparatuses and transmit the collected data to a client group, and at least one client group including at least one client, the client group checking data received from the server and acquiring data requested by the client.