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1. 发明申请

US20220322149A1 WIRELESS MANAGEMENT SYSTEM AND WIRELESS MANAGEMENT METHOD 有权
公开(公告)号：US20220322149A1
公开(公告)日：2022-10-06
申请号：US17672881
申请日：2022-02-16
申请人： Hitachi, Ltd.
发明人： Kenichi Mizugaki
IPC分类号： H04W28/20 , H04W72/04 , H04W72/08 , H04W28/22
摘要： A wireless management system manages a wireless system including a base station and terminals. The wireless management system includes a computer that includes an arithmetic device that executes predetermined arithmetic processing, and a storage device connected to the arithmetic device. The arithmetic device calculates a usage rate of radio resources used by the terminal based on positional information of the terminals and the number of terminals communicating with the base station at the time of communication between the terminals and the base station.

2. 发明授权

US11133900B2 Sensor device management method and sensor device management system 有权
公开(公告)号：US11133900B2
公开(公告)日：2021-09-28
申请号：US16272525
申请日：2019-02-11
申请人： Hitachi, Ltd.
发明人： Rintaro Katayama , Kenichi Mizugaki , Ryosuke Fujiwara
IPC分类号： H04W8/00 , H04L1/20 , H04W4/38 , H04W76/14 , H04L12/26 , H04L29/08 , H04W24/06 , H04W4/70 , H04W4/80 , H04W4/02 , H04W4/50 , G06K19/06 , G06K19/07
摘要： An object of the present invention is to prevent wrong registration due to an operation error and an input error in installation work of a sensor device. A terminal acquires a first identifier which the sensor device has and further, acquires positional information using a positioning device. The terminal transmits the first identifier and the positional information respectively acquired to a management server. The sensor device transmits a second identifier held by itself to the management server. The management server correlates the second identifier and the positional information when the management server judges that the first identifier and the second identifier are located in predetermined relation, registers them in a storage, and the management server notifies the sensor device of a result of the judgment.

3. 发明授权

US09325368B2 Gateway wireless communication instrument, wireless communication system, and communication control method 有权
标题翻译：网关无线通信仪器，无线通信系统和通信控制方法
公开(公告)号：US09325368B2
公开(公告)日：2016-04-26
申请号：US13758419
申请日：2013-02-04
申请人： Hitachi, Ltd.
发明人： Yasutaka Serizawa , Takashi Yano , Masayuki Miyazaki , Kenichi Mizugaki
IPC分类号： H04B1/00 , H04B1/713 , H04B7/26
CPC分类号： H04B1/713 , H04B7/2656
摘要： A period is defined to execute the sequences (processes) of communication data acquisition, measuring communication quality, communication quality data acquisition, and channel change. Processing is controlled to execute each process within a time limit set for each process and execute all processes in one cycle. This avoids that a delayed sequence influences and delays other sequences and can suppress delays. If processing fails to finish a sequence, it will resume the same sequence in the next cycle. For communication stations sharing timeslots, there are provided offset periods differing in length before the start of carrier sense in the timeslots for these stations. Consequently, even under a condition in which packet collision may occur, the collision of packets can be avoided by detecting a packet sent to another station by carrier sense. Moreover, by controlling sending priority of packets in the send queue of the gateway, sending delay can be avoided.
摘要翻译：定义一个时期来执行通信数据采集，测量通信质量，通信质量数据采集和信道变化的序列（过程）。控制处理以在为每个进程设置的时间限制内执行每个进程，并在一个周期内执行所有进程。这避免延迟的序列影响和延迟其他序列并且可以抑制延迟。如果处理无法完成序列，它将在下一个周期恢复相同的序列。对于共享时隙的通信站，在这些站的时隙中提供在载波侦听开始之前长度不同的偏移周期。因此，即使在可能发生分组冲突的情况下，也可以通过检测通过载波侦听发送到另一个站的分组来避免分组的冲突。此外，通过控制网关发送队列中的报文发送优先级，可以避免发送延迟。

4. 发明授权

US10996076B2 Sensor device management method and sensor device management system 有权
公开(公告)号：US10996076B2
公开(公告)日：2021-05-04
申请号：US16408498
申请日：2019-05-10
申请人： Hitachi, Ltd.
发明人： Rintaro Katayama , Kenichi Mizugaki , Ryosuke Fujiwara
IPC分类号： G06F15/00 , G01D21/00 , G01D9/00 , G01D7/00 , G01D1/04 , G01D1/10 , G01D9/04 , H04W4/38 , H04L29/08
摘要： A management server 103 holds a parameter of a sensor device 101 and change management information related to a change in the parameter, and transmits the changed parameter and the change management information to the sensor device. The sensor device 101 holds the parameter and the change management information transmitted from the management server, and transmits the change management information to the management server together with measurement data. The management server collates the received change management information and preliminarily-held change management information to determine the change in the parameter on the basis of a result of the collation.

5. 发明授权

US11778512B2 Wireless management system and wireless management method 有权
公开(公告)号：US11778512B2
公开(公告)日：2023-10-03
申请号：US17672881
申请日：2022-02-16
申请人： Hitachi, Ltd.
发明人： Kenichi Mizugaki
IPC分类号： H04W28/20 , H04W28/22 , H04W72/52 , H04W72/543
CPC分类号： H04W28/20 , H04W28/22 , H04W72/52 , H04W72/543
摘要： A wireless management system manages a wireless system including a base station and terminals. The wireless management system includes a computer that includes an arithmetic device that executes predetermined arithmetic processing, and a storage device connected to the arithmetic device. The arithmetic device calculates a usage rate of radio resources used by the terminal based on positional information of the terminals and the number of terminals communicating with the base station at the time of communication between the terminals and the base station.

6. 发明授权

US10923793B2 Antenna device, manhole cover equipped with antenna device, and power distribution panel equipped with same 有权
公开(公告)号：US10923793B2
公开(公告)日：2021-02-16
申请号：US16276652
申请日：2019-02-15
申请人： Hitachi, Ltd.
发明人： Masami Oonishi , Kenichi Mizugaki , Ryosuke Fujiwara , Rintaro Katayama
IPC分类号： H01Q1/04 , H01Q1/46 , H01Q1/22 , H01Q1/40 , E02D29/14 , H01Q19/06 , H01Q9/28 , H01Q9/06 , H01Q9/04 , H01Q25/00 , H01Q15/08
摘要： An object of the present invention is to improve an antenna for IoT services intended for things that constitute an internal space. There is provided an antenna device including an antenna and a dielectric body. In an internal space which is constituted by plural faces including a first face which is an electrically conductive body, the antenna device is adapted to have a shape to be fit inside a hole in the first face. The antenna device is installed, not protruding from the hole to an outer space. The antenna and the dielectric body are placed in series between the internal space and the outer space.

7. 发明申请

US20190296866A1 Sensor Device Management Method and Sensor Device Management System 审中-公开
公开(公告)号：US20190296866A1
公开(公告)日：2019-09-26
申请号：US16272525
申请日：2019-02-11
申请人： Hitachi, Ltd.
发明人： Rintaro Katayama , Kenichi Mizugaki , Ryosuke Fujiwara
IPC分类号： H04L1/20 , H04W8/00 , H04W4/38 , H04W76/14 , H04L29/08 , H04W24/06 , H04L12/26
摘要： An object of the present invention is to prevent wrong registration due to an operation error and an input error in installation work of a sensor device. A terminal acquires a first identifier which the sensor device has and further, acquires positional information using a positioning device. The terminal transmits the first identifier and the positional information respectively acquired to a management server. The sensor device transmits a second identifier held by itself to the management server. The management server correlates the second identifier and the positional information when the management server judges that the first identifier and the second identifier are located in predetermined relation, registers them in a storage, and the management server notifies the sensor device of a result of the judgment.

8. 发明授权

US11544111B2 Sensor device, sensor device management system, and sensor device management method 有权
公开(公告)号：US11544111B2
公开(公告)日：2023-01-03
申请号：US16789472
申请日：2020-02-13
申请人： Hitachi, Ltd.
发明人： Rintaro Katayama , Ryosuke Fujiwara , Kenichi Mizugaki
IPC分类号： G06F11/34 , G06F9/54 , G06F9/48 , G01M3/00 , G01V1/00 , G01V1/02 , G01V1/16 , G01V1/22 , G06F11/36 , G06F11/30 , G01V1/24
摘要： A processor of a sensor device performs measurement processing by one or a plurality of sensors and transmission processing of sensor data generated by the measurement processing. The sensor device includes a processing routine table that stores a processing routine configured to include, corresponding to an identifier for identifying processing performed by a processor, a type of the processing, an execution trigger of the processing, and trigger information that prescribes a trigger for transmitting the sensor data. The processor controls processing in a processing routine of the processing routine table, based on trigger information, so that the sensor data subjected to measurement processing is immediately transmitted, or temporarily stored in a buffer and transmitted after a predetermined time.

9. 发明申请

US20130235905A1 GATEWAY WIRELESS COMMUNICATION INSTRUMENT, WIRELESS COMMUNICATION SYSTEM, AND COMMUNICATION CONTROL METHOD 有权
标题翻译：网关无线通信仪器，无线通信系统和通信控制方法
公开(公告)号：US20130235905A1
公开(公告)日：2013-09-12
申请号：US13758419
申请日：2013-02-04
申请人： HITACHI, LTD.
发明人： YASUTAKA SERIZAWA , Takashi Yano , Masayuki Miyazaki , Kenichi Mizugaki
IPC分类号： H04B1/713
CPC分类号： H04B1/713 , H04B7/2656
摘要： A period is defined to execute the sequences (processes) of communication data acquisition, measuring communication quality, communication quality data acquisition, and channel change. Processing is controlled to execute each process within a time limit set for each process and execute all processes in one cycle. This avoids that a delayed sequence influences and delays other sequences and can suppress delays. If processing fails to finish a sequence, it will resume the same sequence in the next cycle. For communication stations sharing timeslots, there are provided offset periods differing in length before the start of carrier sense in the timeslots for these stations. Consequently, even under a condition in which packet collision may occur, the collision of packets can be avoided by detecting a packet sent to another station by carrier sense. Moreover, by controlling sending priority of packets in the send queue of the gateway, sending delay can be avoided.
摘要翻译：定义一个时期来执行通信数据采集，测量通信质量，通信质量数据采集和信道变化的序列（过程）。控制处理以在为每个进程设置的时间限制内执行每个进程，并在一个周期内执行所有进程。这避免延迟的序列影响和延迟其他序列并且可以抑制延迟。如果处理无法完成序列，它将在下一个周期恢复相同的序列。对于共享时隙的通信站，在这些站的时隙中提供在载波侦听开始之前长度不同的偏移周期。因此，即使在可能发生分组冲突的情况下，也可以通过检测通过载波侦听发送到另一个站的分组来避免分组的冲突。此外，通过控制网关发送队列中的报文发送优先级，可以避免发送延迟。

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