Abstract: A monitoring and operation image integrating system include: a display signal synthesizing unit to which a display signal from a plurality of safety equipments and that from non-safety equipment are inputted, and which synthesizes a display signal from the plural safety equipments and a display signal from the non-safety equipment; display signal switching unit to which a state signal showing an operation state of whether or not each monitoring and operation screen image of the plural safety equipments displays an operating device of the equipment, is inputted, and which switches a display signal from a safety equipment to be synthesized by the display signal synthesizing unit based on the inputted state signals; and an integrated monitoring and operation screen display that displays a display signal synthesized by the display signal synthesizing unit as an integrated monitoring and operation screen of a plant.

Abstract: An object of the invention is to provide a plant information display device which deforms and displays drawing data without hiding all pieces of information necessary for plant monitoring and plant instrument operation while visibility is not lowered.

Abstract: An object of the invention is to provide a plant information display device which deforms and displays drawing data without hiding all pieces of information necessary for plant monitoring and plant instrument operation while visibility is not lowered.

Abstract: A monitoring and operation image integrating system include: a display signal synthesizing unit to which a display signal from a plurality of safety equipments and that from non-safety equipment are inputted, and which synthesizes a display signal from the plural safety equipments and a display signal from the non-safety equipment; display signal switching unit to which a state signal showing an operation state of whether or not each monitoring and operation screen image of the plural safety equipments displays an operating device of the equipment, is inputted, and which switches a display signal from a safety equipment to be synthesized by the display signal synthesizing unit based on the inputted state signals; and an integrated monitoring and operation screen display that displays a display signal synthesized by the display signal synthesizing unit as an integrated monitoring and operation screen of a plant.

Abstract: A power amount control method includes inputting for storage both a customer's contracted power amount and the customer's actually consumed power amount, visually displaying via network links a power amount difference between the contracted power amount and the consumed power amount, and obtaining such power amount difference between the contracted power amount and the consumed power amount for execution of either price setting of the contracted power amount or a contract breach process in accordance with the power amount difference.

Abstract: A power amount control method in accordance with this invention includes the steps of inputting for storage both a customer's contracted power amount and the customer's actually consumed power amount, visually displaying via network links the information concerning a power amount difference between the contracted power amount and the consumed power amount, and obtaining such power amount difference between the contracted power amount and the consumed power amount for execution of either price setting of the contracted power amount or contract breach processing in accordance with this power amount difference.

Abstract: An electric power marketing method using a computer system in accordance with this invention includes the steps of displaying a marketing menu screen via a network to solicit plural electric power buyers; gathering information relating to electric power purchases by the plural electric power buyers; an electric power purchase compiling for combining electric power purchases by the plural electric power buyers based on information relating to their individual electric power purchases to compile an aggregated electric power purchase with high added value for a marketer; and contracting with the marketer to complete the aggregated electric power purchase.