A central controller for a data network includes an input interface for receiving a request signal, a control unit for generating a control signal depending on the request signal received, and at least one output interface for transmitting the control signal to at least one participant device. The control signal is set up to actuate the at least one participant device to emit a participant output signal for identifying a physical position of the at least one participant device.

A system for online maintenance of a manufacturing apparatus, for shortening manufacturing apparatus maintenance time, including a user's data accumulator sorting information from the manufacturing apparatus into normal apparatus-management information and urgency information that is promptly sent by email to a maintenance apparatus and to relevant terminals. The system includes (1) a production line including a gateway, a manufacturing apparatus, and a data accumulator, the latter two connected to the gateway; and (2) a maintenance apparatus including a gateway server, a server, and a diagnostic device, the latter two connected to the gateway server. The data accumulator includes a data-gathering unit for accumulating manufacturing apparatus operation data, and a data-evaluation unit for determining whether there is an urgency regarding the accumulated data. If the data-evaluation unit determines that the operation data shows an abnormality and that there is an urgency, it sends an urgency-information email message to the mail server.

A system for online maintenance of a manufacturing apparatus, for shortening manufacturing apparatus maintenance time, including a user's data accumulator sorting information from the manufacturing apparatus into normal apparatus-management information and urgency information that is promptly sent by email to a maintenance apparatus and to relevant terminals. The system includes (1) a production line including a gateway, a manufacturing apparatus, and a data accumulator, the latter two connected to the gateway; and (2) a maintenance apparatus including a gateway server, a server, and a diagnostic device, the latter two connected to the gateway server. The data accumulator includes a data-gathering unit for accumulating manufacturing apparatus operation data, and a data-evaluation unit for determining whether there is an urgency regarding the accumulated data. If the data-evaluation unit determines that the operation data shows an abnormality and that there is an urgency, it sends an urgency-information email message to the mail server.

Provided is an electric machine health monitoring system that includes an electric machine, a data acquisition component, a local transmitter, a communications network, and a remote diagnostic unit that is configured to receive the time sequenced operational information, asset performance, and health status indicators from a local transmitter. The remote computational unit comprises software that is configured to perform diagnostic analysis of time sequenced operational information to determine the asset performance and health status of the electric machines.

Provided is an electric machine health monitoring system that includes an electric machine, a data acquisition component, a local transmitter, a communications network, and a remote diagnostic unit that is configured to receive the time sequenced operational information, asset performance, and health status indicators from a local transmitter. The remote computational unit comprises software that is configured to perform diagnostic analysis of time sequenced operational information to determine the asset performance and health status of the electric machines.

A remote diagnosis system is introduced herein, which is applied to at least one spa bathing equipment. The remote diagnosis system comprises a spa bathing system and a remote operating platform. The spa bathing system comprises a plurality of devices for actuating relatively to the spa bathing equipment, and a spa bathing control unit having a control unit for controlling actuations of the plurality of devices, which is used to correspondingly generate at least one partial-region information according to at least one partial-region status generated by the spa bathing system, and to actively or passively transmit the at least one partial-region information toward outside the spa bathing system.