282 results about "Industrial communication" patented technology

The present invention is concerned with the identification of a failed communication network component of an industrial communication network and of a substation automation system in particular. This is achieved by supervising communication paths of a communication network having components. A failure status or operating status of each communication path is determined and reported. Any network component that is part of an operating path is regarded as operating, i.e. failure-free, whereas all other network components are considered as non-operating or potentially failed. If there is more than one non-operating component, additional suitable communication paths are evaluated, until one single failed network component is identified and subsequently reported as requiring repair or replacement. The invention is particularly applicable in cases where some of the network components, i.e. the lines or some nodes of the communication paths, are passive components or non-intelligent devices that are unable to report an operating status themselves.

A machine condition monitor resides in close proximity to a machine train, such as an AC inductive electric motor coupled to a driven unit such as a centrifugal pump or fan. A plurality of sensing devices are connected to the machine and the machine condition monitor. Machine state and condition parameters sensed by these devices are utilized by the machine condition monitor to derive machine condition values for each component and for the machine train as a whole. These derived condition values are transmitted via an industrial communications network to a control center where they can be trended and monitored. With no particular knowledge of machine analysis techniques or severity of specific machine faults, and no special training, Operators and Production Planners can use the condition values to plan production schedules, adjust process parameters, and request appropriate maintenance action.

The invention relates to a real-time transmission method and device of a field layer broadband bus architecture based on the industrial Internet, belonging to the field of industrial communication. The field layer broadband bus architecture based on the industrial Internet comprises a bus controller, at least one bus terminal and a two wire bus; the bus controller and bus terminals are connected by the two wire bus to form a network; and the communication between the bus controller and any one bus terminal and the communication between the bus terminals are based on the OFDM technology, and non interference occurs between the sub carriers occupied by each bus terminal. The real-time transmission method of the field layer broadband bus architecture based on the industrial Internet comprises the following steps: the bus controller receives a fixed rate service sent by the bus terminal based on pre-assigned fixed rate service resource blocks; and in the variable rate business resource blocks, the resource blocks are assigned to the bus terminal variable rate service dynamically in real time. According to the invention, the OFDM technology is introduced to the industrial field bus, and the data service and the channel resources are divided, therefore, the reliability, high speed and real time of the data transmission is realized.