Daikin Industries, Ltd.

Hiroki Ueda

Eiji Kumakura

Nobuki Matsui

Hiroshi Doumae

Shin Higashiyama

Atsushi Yoshimi

Ryuhei Kaji

Hiroshi Nakayama

Tadafumi Nishimura

Masaki Tanaka

Masaki Nakayama

Yasunori Okamoto

Naotoshi Fujita

Eisaku Okubo

Daisuke Satou

Yasuyuki Aisaka

Tsutomu Iura

Tomomi Kukita

Tatsuya Shouji

Hiroshi Noda

Takuya Hanada

Yuusuke Asada

Hiroyuki Murayama

Tatsunori Tenpaku

Eisaku Ohkubo

An estimation system estimates the arrangement of objects. The estimation system includes an estimation unit. The estimation unit obtains information related to an arrangement pattern of the objects as first information and obtains, from wireless devices respectively connected to the objects, information including response times between the wireless devices as second information to estimate the arrangement of the objects based on the first information and the second information.

Estimation system and estimation method

In an air conditioner, during an operation, a gas-liquid two-phase non-azeotropic mixture refrigerant enters a receiver and accumulates in the receiver in a state where a gas phase and a liquid phase are separated. For example, when the non-azeotropic mixture refrigerant includes two components, i.e., a high-boiling refrigerant and a low-boiling refrigerant, the controller may estimate the ratio (composition ratio) between the low-boiling refrigerant and the high-boiling refrigerant in each of the gas phase and the liquid phase based on the temperature and the pressure of the non-azeotropic mixture refrigerant in the receiver. Thus, the controller may estimate the composition ratio of the liquid-phase non-azeotropic mixture refrigerant flowing out of the receiver as the composition ratio of the non-azeotropic mixture refrigerant circulating in the refrigerant circuit.

Heat pump device using a non-azeotropic mixture refrigerant

A refrigeration cycle apparatus includes a refrigeration cycle, an adsorption section, and a first bypass flow path. The refrigeration cycle includes a compressor, a radiator, an expansion mechanism, and an evaporator, and uses a non-azeotropic refrigerant mixture including a first refrigerant and a second refrigerant. The adsorption section includes an adsorbent and stores the first refrigerant adsorbed by the adsorbent. The adsorbent adsorbs the first refrigerant, and does not adsorb the second refrigerant or the adsorption performance thereof for the second refrigerant is lower than the adsorption performance thereof for the first refrigerant. The first bypass flow path connects a first end which is a high-pressure part of the refrigeration cycle and a second end which is a low-pressure part of the refrigeration cycle. The adsorption section and a valve are disposed in the first bypass flow path.

Refrigeration cycle apparatus

A communication system includes a first device, second devices, and a communication line providing a serial connection from the first device to the second devices to establish a communication connection. An address setting device of the communication system is configured to set addresses of the second devices. The address setting device includes a communication controller. The communication controller is configured to transmit a transmission signal toward the second devices through the communication line and change at least one of an amplitude or a frequency of the transmission signal, and associate the addresses of the second devices with connection precedence of the second devices to the first device based on a reception signal received through the communication line.

Address-setting device and air conditioning system

The workload in creating a document for reporting a construction status is reduced. A task support apparatus includes a first acquiring unit configured to acquire a plurality of captured images associated with pieces of attribute information from a terminal device configured to associate the captured images with the pieces of attribute information; a second acquiring unit configured to acquire an insertion rule and/or a description rule of a document for reporting a construction status; and a generating unit configured to generate image information based on the pieces of attribute information, associated with the plurality of captured images acquired by the first acquiring unit, and the insertion rule and/or the description rule acquired by the second acquiring unit. The pieces of attribute information each include a construction detail and a photographing timing.

Task support apparatus, task support program, terminal, and task support method

An air conditioning system includes an outdoor unit and an indoor unit connected to the outdoor unit through an air conditioning communication line. The outdoor unit includes: a control unit; a compressor; a fan; a compressor inverter; a fan inverter; a heat exchanger; and valves of various types. The control unit of the outdoor unit has a coupling capacitor and a noise-cutting transformer which are between a communication circuit and the air conditioning communication line.

Air conditioning system

In an air conditioner which is a refrigeration apparatus, a heat source unit has a heat-source-side heat exchanger in which a refrigerant exchanges heat with heat source water. The heat-source-side heat exchanger includes a plurality of heat exchange sections, and has a heat exchange region whose size can be adjusted through changing the number of heat exchange sections into which the refrigerant flows. The heat source unit has a controller which can adjust the size of the heat exchange region of the heat-source-side heat exchanger based on a differential pressure index value. This can broaden the temperature range of the heat source water within which the heat source unit of the refrigeration apparatus is operable.

Heat source unit for refrigeration apparatus including a heat-source-side heat exchanger having a heat exchange region of variable size

A humidity control system includes three dehumidifiers. Each of the dehumidifiers alternately switches between first batch operation in which air whose moisture has been adsorbed in a first adsorption component is supplied to a room and air heated in a heat exchanger is exhausted to outside the room through a second adsorption component, and second batch operation in which air whose moisture has been adsorbed in the second adsorption component is supplied to the room and air heated in the heat exchanger is exhausted to outside the room through the first adsorption component. The system further includes: a controller allowing the switchings of the dehumidifiers to be performed at different timings; and a chamber collecting air to be supplied from the dehumidifiers to the room.

Humidity control system

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Osaka, Japan

Hiroki Ueda