Mitsubishi Electric Corporation

Yasuomi Ando

Masanori Hashimoto

Koji Shibata

Katsuyoshi Takahashi

Tomoo Nakano

Kazuki Hamada

Nobuaki Tasaki

The air-conditioning system control apparatus includes an influence-degree calculation unit that calculates a degree of influence between two air-conditioning indoor units that are selected from a plurality of air-conditioning indoor units as a pair of air-conditioning indoor units, based on operation data on the pair of air-conditioning indoor units.

Air-conditioning system control apparatus using degree of influence between air-conditioning indoor units

A procedure extraction system will be provided which can extract a procedure related to determining the cause of abnormality in facility equipment from analysis procedures in accordance with which the operator analyzes the operating conditions of the facility equipment. The procedure extraction system includes an analysis log storage to store a procedure in accordance with which an operator has analyzed an operating condition of facility equipment using operation data relating to the operating condition of the facility equipment, a graph creation unit to create a graph using the operation data, a region specification unit to specify at least a region of the graph, and an output step extraction unit to extract, from among steps included in the procedure stored in the analysis log storage, a step necessary for creating the graph including the region specified by the region specification unit.

Procedure extraction system

A bridging apparatus includes an address-table managing unit configured to manage an address table in which devices connected to networks are registered, a presence-check-frame transmission control unit configured to transmit a presence check frame for checking whether a device is connected to a network, and a network transmission-reception control unit configured to call, upon receipt of a response request frame transmitted from a first device connected to a first network toward a second device connected to a second network, the address-table managing unit to register the first device in the address table and check whether the second device is registered in the address table, and when the second device is registered, transmit an acknowledgement to the first device and transfer the response request frame to the second network, whereas when the second device is not registered, instruct the presence-check-frame transmission control unit to transfer the response request frame to the second network.

Bridging apparatus

A gateway apparatus () receives a request frame transmitted from a system controller () to an indoor unit(), and determines whether a sensor specified in the request frame is a sensor-A () which is connected with the indoor unit() or a sensor-B () which is not connected with the indoor unit(). When the sensor specified in the request frame is the sensor-B (), the gateway apparatus () acquires a measurement value from the sensor-B (), and responds to the system controller () with the acquired measurement value of the sensor-B ().

Communication apparatus, communication method, and computer readable medium

A jitter occurring due to a difference in operation timing between a receiving part and a processing part is reduced. The receiving part receives reception data. The processing part processes the reception data and generates transmission data. A transmitting part transmits the transmission data at a timing at which a transmission delay time has passed since a timing at which the processing part generates the transmission data. The transmission delay time is a time obtained by subtracting a process delay time from an overall delay time. The process delay time is a time that passes since a timing at which the receiving part receives the reception data until a timing at which the processing part processes the reception data.

Relay device, communication system and relay method

A master apparatus repeatedly executes an offset value calculation notification sequence in which a calculation of an offset value for correcting a transmission path delay is implemented after communications with the plurality of slave apparatuses, and a notification of the offset value calculated to the plurality of slave apparatuses is implemented Every time the offset value calculation notification sequence is executed, the master apparatus notifies the slave apparatuses of a sequence identifier which is the identifier of the offset value calculation notification sequence. Furthermore, the master apparatus selects a sequence identifier from among two or more sequence identifiers already notified to each slave apparatus, notifies the selected sequence identifier to each slave apparatus, and instructs each slave apparatus to use, for time-synchronization, an offset value notified in the offset value calculation notification sequence corresponding to the selected sequence identifier.

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Tokyo, Japan

Yasuomi Ando