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公开(公告)号：US11839156B2
公开(公告)日：2023-12-05
申请号：US16431804
申请日：2019-06-05
Applicant: YOKOGAWA ELECTRIC CORPORATION , COLLECTIVE INTELLIGENCE
Inventor： Takashi Arai , Yusaku Yoshida , Shuichi Sato , Hiroo Urabe , Yoshiyasu Takefuji
Abstract: A temperature difference power generation apparatus according to one aspect of the present invention includes a thermoelectric conversion element configured to convert thermal energy into electric energy based on a temperature difference, radiation fins which are thermally connected to a low-temperature side of the thermoelectric conversion element and contactable to outside air, and a pipe which is thermally connected to a high-temperature side of the thermoelectric conversion element and through which a high-temperature fluid at a higher temperature than the outside air is flowable.
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公开(公告)号：US20200018627A1
公开(公告)日：2020-01-16
申请号：US16504399
申请日：2019-07-08
Applicant: Yokogawa Electric Corporation
Inventor： Takashi ARAI , Yusaku Yoshida , Shuichi Sato , Ikuhiko Ishikawa
Abstract: An electromagnetic flowmeter measures a flow rate of a liquid of a measurement target that flows in a magnetic field formed within a measurement pipe. The electromagnetic flowmeter includes at least one pair of detection electrodes configured to detect an electromotive force generated due to a flow of the liquid, and configured to output a flow rate signal of a magnitude of the detected electromotive force, a measurement circuit configured to supply an alternating current between the detection electrodes and an earth electrode, and a control calculator configured to control a frequency of the alternating current to be 1 kHz or more, and configured to calculate a conductivity of the liquid whose conductivity is 1 mS/cm or more based on the flow rate signal output when the alternating current flows between the detection electrodes and the earth electrode.
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公开(公告)号：US11330350B2
公开(公告)日：2022-05-10
申请号：US15897417
申请日：2018-02-15
Applicant: Yokogawa Electric Corporation
Inventor： Takashi Arai , Yusaku Yoshida , Shuichi Sato , Ikuhiko Ishikawa
IPC: H04Q9/00 , G01D1/18 , G01D9/00 , G05B19/042
Abstract: A field device according to one aspect of the present invention includes a plurality of types of sensors, at least one converter configured to acquire measured results of the plurality of types of sensors and to convert the measured results into measured information, the measured information being a physical quantity, and an information providing device configured to acquire and store the measured information from the at least one converter and to provide the stored measured information to an outside of the field device in a case that a predetermined condition is satisfied.
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公开(公告)号：US20200036793A1
公开(公告)日：2020-01-30
申请号：US16505961
申请日：2019-07-09
Applicant: Yokogawa Electric Corporation
Inventor： Takashi Arai , Yusaku Yoshida , Shuichi Sato , Hiroo Urabe
Abstract: A communication device includes a signal acquirer, a controller, and a wireless communicator. The signal acquirer has terminals for a plurality of types of interfaces for acquiring signals from an external field device. The controller acquires the signals output from the signal acquirer and performs control for externally transmitting digital data based on the signals using wireless communication. The wireless communicator externally transmits the digital data in accordance with a wireless communication scheme based on the control performed by the controller.
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Patent Agency Ranking
公开(公告)号：US20200019138A1
公开(公告)日：2020-01-16
申请号：US16506568
申请日：2019-07-09
Applicant: YOKOGAWA ELECTRIC CORPORATION
Inventor： Takashi Arai , Yusaku Yoshida , Shuichi Sato , Hiroo Urabe
IPC: G05B19/406 , H04Q9/00
Abstract: A field instrument includes: a plurality of sensors; a converter that acquires measurement results of the sensors and converts the measurement results into measurement information. The measurement information is physical quantities; and a processor that outputs, to a control target instrument connected to the field instrument, a control instruction that controls the control target instrument based on the measurement information.
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公开(公告)号：US20200012448A1
公开(公告)日：2020-01-09
申请号：US16502130
申请日：2019-07-03
Applicant: Yokogawa Electric Corporation
Inventor： Takashi Arai , Yusaku Yoshida , Shuichi Sato , Hiroo Urabe
Abstract: A data collection system including a device having a communication function and a data collection apparatus configured to collect data transmitted from the device. The data collection apparatus includes a receiver configured to receive data transmitted from the device, a data analyzer configured to acquire analyzed data by analyzing the received data according to analysis data format different for each device, a first data storage which is a non-rewritable storage, a second data storage which is storage that can be accessed faster than the first data storage and that stores a smaller amount of data than the first data storage, a data writer configured to writes and stores the data received by the receiver to the first data storage, and writes and stores the analyzed data acquired by the data analyzer to the second data storage.
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公开(公告)号：US11461037B2
公开(公告)日：2022-10-04
申请号：US16502130
申请日：2019-07-03
Applicant: Yokogawa Electric Corporation
Inventor： Takashi Arai , Yusaku Yoshida , Shuichi Sato , Hiroo Urabe
IPC: G06F11/07 , G06F3/06 , H04L67/1097 , H04L67/125
Abstract: A data collection system including a device having a communication function and a data collection apparatus configured to collect data transmitted from the device. The data collection apparatus includes a receiver configured to receive data transmitted from the device, a data analyzer configured to acquire analyzed data by analyzing the received data according to analysis data format different for each device, a first data storage which is a non-rewritable storage, a second data storage which is storage that can be accessed faster than the first data storage and that stores a smaller amount of data than the first data storage, a data writer configured to writes and stores the data received by the receiver to the first data storage, and writes and stores the analyzed data acquired by the data analyzer to the second data storage.
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公开(公告)号：US11165867B2
公开(公告)日：2021-11-02
申请号：US16505961
申请日：2019-07-09
Applicant: Yokogawa Electric Corporation
Inventor： Takashi Arai , Yusaku Yoshida , Shuichi Sato , Hiroo Urabe
Abstract: A communication device includes a signal acquirer, a controller, and a wireless communicator. The signal acquirer has terminals for a plurality of types of interfaces for acquiring signals from an external field device. The controller acquires the signals output from the signal acquirer and performs control for externally transmitting digital data based on the signals using wireless communication. The wireless communicator externally transmits the digital data in accordance with a wireless communication scheme based on the control performed by the controller.
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公开(公告)号：US11105665B2
公开(公告)日：2021-08-31
申请号：US16504399
申请日：2019-07-08
Applicant: Yokogawa Electric Corporation
Inventor： Takashi Arai , Yusaku Yoshida , Shuichi Sato , Ikuhiko Ishikawa
Abstract: An electromagnetic flowmeter measures a flow rate of a liquid of a measurement target that flows in a magnetic field formed within a measurement pipe. The electromagnetic flowmeter includes at least one pair of detection electrodes configured to detect an electromotive force generated due to a flow of the liquid, and configured to output a flow rate signal of a magnitude of the detected electromotive force, a measurement circuit configured to supply an alternating current between the detection electrodes and an earth electrode, and a control calculator configured to control a frequency of the alternating current to be 1 kHz or more, and configured to calculate a conductivity of the liquid whose conductivity is 1 mS/cm or more based on the flow rate signal output when the alternating current flows between the detection electrodes and the earth electrode.
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