Mitsubishi Electric Corporation

Mitsubishi Denki Kabushiki Kaisha

Mitsubishi Electric Company

Shinichiro Tsudaka

Mitsunobu Yoshinaga

Koichi Nakagawa

Masayo Nakagawa

Hideo Nakata

Tadashi Oi

Tomoyuki Nagata

Hiroki Konaka

Akira Sugimoto

Keigo Yoshida

Natsuko Maeda

Ryuichi Kobune

A control logic diagram analysis device that efficiently creates a control logic diagram, and a method thereof. The control logic diagram analysis device includes a control logic diagram analysis rule application unit, a control logic diagram template component generation unit, and a control logic diagram project-specific part extraction unit. The control logic diagram analysis rule application unit sequentially applies a control logic diagram analysis rule to the control logic diagram from a lower layer level. The control logic diagram template component generation unit acquires the control logic diagram analysis rule having an agreement section within the control logic diagram. The control logic diagram project-specific part extraction unit extracts an element in the control logic diagram corresponding to the control logic diagram analysis rule having the agreement section within the control logic diagram.

Control logic diagram analysis device and control logic diagram analysis method

An apparatus includes: a similar plant information retrieval unit retrieving plant information of a similar plant similar to a creation object plant from plant information versus control logic diagram association information stored in a plant information versus control logic diagram association information storage unit; a plant information difference detector comparing the plant information of the creation object plant with the plant information of the similar plant to acquire difference information; a plant information editor that, based on the difference information, deletes an element included in the similar plant but unnecessary for the creation object plant, and retrieves an element included in the creation object plant but not included in the similar plant from the plant information versus control logic diagram association information storage unit to add the retrieved element; and a plant information editing result display displaying a result of the plant information editor.

Control logic diagram creation support apparatus

This test device for a monitoring control device includes an input/output controller, a logic controller, a logic connector, a logic executing simulator, a test target indication unit, an apparatus characteristic receiver, a logic managing simulator, and a logic connection information generator. Using an apparatus characteristic obtained by the apparatus characteristic receiver, the logic managing simulator specifies a simulation logic appropriate for a control logic on the basis of a simulation logic management rule. The logic connector connects the control logic and the simulation logic, by using logic connection information generated on the basis of a logic connection rule.

Test device for monitoring control device

A control unit of a plant facilities testing apparatus implements a first step of obtaining unupdated screen information and updated screen information, a second step of obtaining an unupdated test-item table file, a third step of comparing the unupdated screen information with the updated screen information and extracting a change item and an addition item while categorizing a difference thereinto, a fourth step of creating a test-item table file for an addition portion based on the addition item, a fifth step of creating a test-item table file for a change portion based on the change item and the unupdated test-item table file, and a sixth step of creating an updated test-item table file by combining the test-item table file for an addition portion with the test-item table file for a change portion.

Plant facilities testing apparatus

A technique capable of estimating an error point in a logic diagram appropriately. A logic diagram display device includes: a signal line correctness/incorrectness determining unit that determines for each test whether each signal line in the logic diagram is correct or incorrect based on a signal line status value of each signal line and a test table; and a signal line correctness/incorrectness result summarizing unit that calculates a correctness/incorrectness result summarized value of each signal line based on a result of determination about the correctness or incorrectness of each signal line. The logic diagram display device further includes: an error signal line estimating unit that estimates an error in each signal line based on the correctness/incorrectness result summarized value of each signal line; and a display that displays each signal line in the logic diagram in a display style responsive to the error in each signal line.

Device for and method of estimating error point in logic diagram

A logic diagram processing device has a logic diagram relocating unit which relocates operation elements while maintaining control logics equivalently so that the operation elements as compared overlap in the case where a plurality of designated logic diagrams are overlapped, and a logic diagram overlapping unit which overlaps the plurality of designated logic diagrams in which the operation elements are relocated by the logic diagram relocating unit. The logic diagram processing device also includes a display unit which displays the plurality of designated logic diagrams overlapped by the logic diagram overlapping unit in a predetermined display method by which a common part or the difference of the operation elements can be discriminated, and a display control unit which switches the predetermined display method to display in the display unit in accordance with an instruction from the outside.

Logic diagram processing device and logic diagram processing method

An execution sequence decision device is capable of efficiently and appropriately determining the execution sequence of processing modules even in a case where those have a closed circuit in the input/output dependencies. A dependence evaluation sub-unit and an anti dependence evaluation sub-unit evaluate the dependence and anti dependence of each processing module in a processing module group. A priority evaluation sub-unit determines the priority of each processing module in the processing module group based on the dependence and anti dependence. An execution order allocation sub-unit allocates the top of execution sequence to one processing module that has the highest priority obtained by the priority evaluation sub-unit. An execution sequence allocation unit causes the respective sub-units to repeatedly execute the above-mentioned process every time the order of execution sequence of one processing module is determined, and then sequentially allocates the orders of execution sequence to the respective processing modules.

Execution order decision device

A logic diagram search device of the present invention includes a movement amount estimation section, a computation element/signal line correspondence calculation section, and a similarity degree calculation section. The movement amount estimation section estimates a diagram movement amount between a criterion diagram and a comparative diagram based on a coordinates variation amount. The computation element/signal line correspondence calculation section generates correspondence between a signal line in the criterion diagram connecting the computation elements that have been objects of a correspondence generation operation and a signal line in the comparative diagram connecting the computation elements that have been objects of the correspondence generation operation. The similarity degree calculation section calculates the degree of similarity between the criterion diagram and the comparative diagram based on the computation elements and the signal lines for which the correspondence is generated.

Logic diagram search device

The objective of the present invention is to efficiently create a test table in a monitoring control system. There are provided a logic drawing analysis unit () that analyzes a logic drawing (LG) stored in a logic drawing storage device (); an input value creation unit () that creates an input value for each of the input value types into which analogue values are categorized, based on an input point () of the logic drawing (LG) derived by the logic drawing analysis unit () and an input specification (ITB) for the logic drawing (LG) stored in an input specification storage device (); an output value creation unit () that creates the respective expected values corresponding to the input values created in the input value creation unit (), for the output points () that correspond to the types of arithmetic elements derived by the logic drawing analysis unit (); and a table creation unit () that creates a test table (TTB), based on the input value created by the input value creation unit () and the expected value created by the output value creation unit ().

Test table creation system and test table creation method

A user interface designing apparatus capable of easily designing a user interface which can change over display parts in accompanying state transitions for events by adding/deleting states and editing the display part and event handling in each state. The apparatus includes a state set editing means for adding/deleting states of a composite display part having a plurality of states, an event handling editing means for describing an event handling for state transition in each state of the composite display part, an elementary display part storing means for storing elementary display parts designed previously, and a state display editing means for adding/deleting elementary display parts to be displayed in each state of the composite display part.

User interface designing apparatus

A power line carrier communication system includes a power line, a first communication device, a second communication device, the first and second communication devices being arranged on the power line and performing a communication via the power line, a storage section that stores information on a physical position of a first communication device, a detecting section that detects a communication state between the first and second communication devices, a relative position calculating section that calculates a relative position between the first and second communication devices based on the communication state, and an arithmetic operation section that calculates a physical position of the second communication device from the relative position and the information on the physical position of the first communication device stored in the storage section, and stores information on the calculated physical position of the second communication device into the storage section.

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Tokyo, Japan

Shinichiro Tsudaka