公开(公告)号：US20230294744A1

公开(公告)日：2023-09-21

申请号：US17700103

申请日：2022-03-21

Applicant: Yokogawa Electric Corporation

Inventor： Naoyuki Fujimoto

IPC: B61C13/00 ,  H02J50/20 ,  H02J7/00 ,  B60L53/12 ,  B61C3/00 ,  H01Q13/20

CPC classification number: B61C13/00 ,  H02J50/20 ,  H02J7/0042 ,  B60L53/12 ,  B61C3/00 ,  H01Q13/203 ,  B60L2200/26 ,  G01M99/00

Abstract: Implementations are described herein for operating rail-mounted robots in hazardous conditions. In various implementations, a rail-mounted robot configured to inspect a plant with an explosion proof area may include: an actuator to propel the rail-mounted robot along a rail; a battery to provide power to the actuator; a charger to draw power from a power terminal integral with the rail while the rail-mounted robot is in motion, and to charge the battery using the drawn power; and logic to localize the rail-mounted robot based on readings from location indicia distributed along the rail.

公开(公告)号：US10264617B2

公开(公告)日：2019-04-16

申请号：US15246688

申请日：2016-08-25

Applicant: YOKOGAWA ELECTRIC CORPORATION

Inventor： Naoyuki Fujimoto ,  Masato Yamaji ,  Kenichi Takeda ,  Haruka Yamada

IPC: H04W76/16 ,  H04W76/18 ,  G05B19/418 ,  H04W12/04 ,  H04B7/155 ,  H04W48/10 ,  H04W48/18 ,  H04W4/00 ,  H04W4/70 ,  H04L29/08 ,  H04W84/04

Abstract: A wireless relay device that performs relay of data over a wireless network includes: a manager that manages a second wireless network different from a first wireless network that the own device joins; and a transfer controller that transfers data transmitted to the own device over the second wireless network, to a preset transfer destination over the first wireless network.

公开(公告)号：US09681364B2

公开(公告)日：2017-06-13

申请号：US14437248

申请日：2013-10-07

Applicant: YOKOGAWA ELECTRIC CORPORATION

Inventor： Naoyuki Fujimoto ,  Masato Yamaji

IPC: H04W4/00 ,  H04W48/16 ,  H04W48/18 ,  H04W52/02 ,  H04W72/04

CPC classification number: H04W48/16 ,  H04W48/18 ,  H04W52/0206 ,  H04W72/0446 ,  Y02D70/00

Abstract: A wireless communication system includes a wireless device configured to make a request to join a wireless network in a case that a first estimated joining time is reached, the first estimated joining time being a time to join the wireless network. In addition, the wireless communication system includes a management device configured to cause the wireless device that made a joining request to join the wireless network, and cause the wireless device to leave the wireless network, the leave of the wireless device being caused in a case that a wireless communication by the wireless device via the wireless network is completed.

公开(公告)号：US20180343147A1

公开(公告)日：2018-11-29

申请号：US15986249

申请日：2018-05-22

Applicant: YOKOGAWA ELECTRIC CORPORATION

Inventor： Naoyuki Fujimoto

IPC: H04L12/66 ,  H04B7/14

Abstract: A wireless gateway system includes a gateway apparatus having a gateway function and including an antenna that wirelessly communicates with a wireless field device, and a power supply apparatus separated from the gateway apparatus. The power supply apparatus converts a voltage from an external power supply to a predetermined internal voltage, supplies the internal voltage to the gateway apparatus, and relays a wired signal in conformance with a first wired communication protocol between an external controller and the gateway apparatus. The gateway apparatus operates using the internal voltage supplied from the power supply apparatus, converts a wireless signal in conformance with a wireless communication protocol received from the wireless field device to a wired signal in conformance with the first wired communication protocol, and transmits the converted wired signal to the power supply apparatus.

公开(公告)号：US09992743B2

公开(公告)日：2018-06-05

申请号：US15136410

申请日：2016-04-22

Applicant: YOKOGAWA ELECTRIC CORPORATION

Inventor： Masato Yamaji ,  Kenichi Takeda ,  Masaki Shioya ,  Naoyuki Fujimoto ,  Minoru Midorikawa

IPC: H04W52/02 ,  H04W88/16 ,  H04L12/24 ,  G08C17/02 ,  H04B5/00 ,  H04W72/04 ,  H04L12/10 ,  H04L12/12

CPC classification number: H04W52/0235 ,  G08C17/02 ,  G08C2200/00 ,  G08C2201/12 ,  H04B5/0037 ,  H04B5/0056 ,  H04L12/10 ,  H04L12/12 ,  H04L41/0813 ,  H04L41/24 ,  H04W4/80 ,  H04W72/0446 ,  H04W88/16 ,  Y02D70/00 ,  Y02D70/1222 ,  Y02D70/144 ,  Y02D70/162 ,  Y02D70/166 ,  Y02D70/42

Abstract: A wireless device that performs an operation based on setting information includes a wireless communicator configured to perform wireless communication over a wireless network, a near field communicator comprising a memory storing the setting information and configured to perform transmission and reception of the setting information stored in the memory by near field communication, and a controller configured to control at least the wireless communicator.

公开(公告)号：US10361929B2

公开(公告)日：2019-07-23

申请号：US15111519

申请日：2015-01-14

Applicant: YOKOGAWA ELECTRIC CORPORATION

Inventor： Hirokazu Sasaki ,  Naoyuki Fujimoto

IPC: H04L12/26 ,  G05B19/042

Abstract: An information displaying device has a display and a display controller. The display controller displays, on the display, statistic information associated with device identification information for identifying a field device. The statistic information is obtained by an information processing device which statistically processes communication quality information over a predetermined period. The communication quality information representing a communication quality between the field device installed in a plant and the information processing device.

公开(公告)号：US10270629B2

公开(公告)日：2019-04-23

申请号：US15238179

申请日：2016-08-16

Applicant: YOKOGAWA ELECTRIC CORPORATION

Inventor： Haruka Yamada ,  Naoyuki Fujimoto ,  Minoru Midorikawa ,  Masato Yamaji ,  Kenichi Takeda

IPC: H04B7/212 ,  H04L25/20 ,  H04W16/24 ,  H04L12/891 ,  H04W88/04 ,  H04W88/16

Abstract: A wireless relay device for relaying packets via a wireless network includes an aggregator and a transfer controller. The aggregator is configured to aggregate a plurality of sets of data respectively included in a plurality of first packets transmitted from a plurality of wireless devices in the wireless network and under the wireless relay device to generate a second packet. The plurality of first packets is addressed to the wireless relay device. The transfer controller is configured to transfer the second packet to a transfer destination.

公开(公告)号：US10104552B2

公开(公告)日：2018-10-16

申请号：US15081138

申请日：2016-03-25

Applicant: Yokogawa Electric Corporation

Inventor： Naoyuki Fujimoto ,  Masato Yamaji ,  Kenichi Takeda ,  Masaki Shioya ,  Yota Furukawa

IPC: H04L29/06 ,  H04W12/10 ,  H04B7/155 ,  H04W12/02 ,  H04W88/04

Abstract: A wireless relay device for relaying encrypted data via a wireless network according to one aspect of the present invention includes a relay controller and an encryption processor. The relay controller is configured to relay a first data to a predetermined relay destination as a second data via the wireless network. The first data is transmitted to the wireless relay device via the wireless network and is addressed to the wireless relay device. The encryption processor is configured to decrypt the first data into a decrypted first data and to input the decrypted first data into the relay controller, and encrypt the second data to be relayed by the relay controller.

公开(公告)号：US09854610B2

公开(公告)日：2017-12-26

申请号：US14767999

申请日：2014-01-15

Applicant: YOKOGAWA ELECTRIC CORPORATION

Inventor： Naoyuki Fujimoto

IPC: H04W72/00 ,  H04W76/02 ,  H04B1/7143 ,  H04W72/04 ,  H04L12/24 ,  H04W84/18

CPC classification number: H04W76/02 ,  H04B1/7143 ,  H04L41/08 ,  H04W72/04 ,  H04W72/0446 ,  H04W76/10 ,  H04W84/18

Abstract: A management apparatus for managing a wireless network includes a storage storing unset communication links other than previously set communication links for a wireless communication via the wireless network among previously prepared communication links and a manager configured to divide each communication link stored in the storage into a plurality of communication links and to set the plurality of communication links in accordance with a setting request of communication links.

公开(公告)号：US20240103528A1

公开(公告)日：2024-03-28

申请号：US17950791

申请日：2022-09-22

Applicant: Yokogawa Electric Corporation

Inventor： Naoyuki Fujimoto

IPC: G05D1/02 ,  G01C21/20

CPC classification number: G05D1/0274 ,  G01C21/206

Abstract: Implementations are described herein for inspecting industrial facilities using remote sensor packages and wireless access points (WAPs) carried by mobile robots. In various implementations, aspect(s) of an industrial process facility may be monitored using sensor package(s). The sensor package(s) may generate one or more sensor signals, and based on the one or more sensor signals, detect anomal(ies) of the monitored aspect(s) of the industrial facility. Responsive to detecting anomal(ies), the sensor package(s) may modulate a long-range low-bandwidth (LR-LB) signal to indicate detection of the anomal(ies) in the monitored aspect(s) of the industrial process facility. Another component of the industrial facility may identify LR-LB signal(s) representing detection of anomal(ies) by sensor package(s) and instruct mobile robot(s) to travel to area(s) of the industrial facility to receive sensor data carried by a short-range high-bandwidth (SR-HB) signal emanating from that area.