Mitsubishi Heavy Industries Limited

Isao Sagawa

Katsunori Tanaka

Masumi Nomura

Hideaki Emoto

Yujiro Shimizu

Yasuhiko Ikegami

Katsuhiko Toda

Tsutomu Sakagami

Ikuyo Abe

Shigeo Okamoto

Data is transmitted certainly even if some trouble happens on one of the communicating lines and masking effect of the information is enhanced. In the case that data including A, B and C stored in a device at a place transmits to another devicelocated at a different place, communicating lines including at least three lines are connected and divided data portions AB, BC and CA are transmitted through the communicating lines, respectively.

Distributed communicating system, distributed communication data, distributed transmitting means and distributed receiving means

The state of combustion oscillation in the combustor of a turbine of a power plant is monitored from a remote monitoring center. To monitor the combustion oscillation state, combustion oscillation data on the combustor is separated into two types of data: the first data obtained on a real-time basis, and the second data including representative values within a predetermined period of time obtained from the first data. In the normal state, a low-speed communications mode is used to send the second data, which is monitored at the monitoring center. If an abnormal state is predicted as a result of monitoring the second data, the high-speed communications mode is used to send the first data, and more detailed combustion oscillation data is monitored at the monitoring center. When a critical state is predicted, an instruction is sent to the local site to switch the operation mode over to the low load operation mode.

Method for remote monitoring of gas turbine

The objective of this invention is to provide an automatic reverse method for reversing and displaying the black-white image into the white-black image under the predetermined condition, and a printer unit using the same method, specially a printer unit used in a plant operation. According to this invention, it would allow the printing operation to be accomplished merely by actuating a print button on operation device The judgment of whether to reverse the black-and-white components, which was the responsibility of the operator in the prior art design, would be made automatically, and the human errors would be eliminated. The proportion of the black monochrome portion among the received black-and-white entire monochrome image. It displays either the received black-and-white monochrome image without any reversal if the proportion does not exceed a given value, or the reversed white-and-black monochrome image if the proportion exceeds the given value.

Automatic reverse method for reversing the black-and-white monochrome image, and printer unit using the same

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Takasago, Japan

Isao Sagawa