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公开(公告)号：US11615686B2
公开(公告)日：2023-03-28
申请号：US17542811
申请日：2021-12-06
发明人： Kenji Mizutani
摘要： An apparatus includes a measuring device, a position specifying circuit, and a determining circuit. The measuring device measures a plurality of subjects by radiating a detecting wave toward the plurality of subjects. The position specifying circuit specifies positions of the plurality of subjects on a basis of information obtained by the measuring device. The determining circuit determines at least one of: a next subject suitable as a subject to be visited next by a monitoring person among the plurality of subjects; and a movement path along which the monitoring person moves from a position of the monitoring person to the next subject on a basis of the positions of the plurality of subjects specified by the position specifying circuit. A method performs the operations of the measuring device, and the circuits.
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公开(公告)号：US11227475B2
公开(公告)日：2022-01-18
申请号：US17000431
申请日：2020-08-24
发明人： Kenji Mizutani
摘要： A monitoring support apparatus according to an aspect of the present disclosure is for supporting work of a monitoring person who monitors subjects by sequentially visiting the subjects and includes a measuring device that measures the subjects and the monitoring person by radiating a detecting wave toward the subjects and the monitoring person, a position specifying circuit that specifies positions of the subjects and a position of the monitoring person on the basis of information obtained by the measuring device, and a decision circuit that decides at least one selected from a group consisting of a next subject suitable as a subject to be visited next by the monitoring person among the subjects and a movement path along which the monitoring person moves from the position of the monitoring person to the next subject on the basis of the positions of the subjects and the position of the monitoring person.
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公开(公告)号：US09531317B2
公开(公告)日：2016-12-27
申请号：US14761542
申请日：2014-01-10
发明人： Yuji Kudoh , Kenji Mizutani , Nobuyuki Otsuka
CPC分类号： H02P27/16 , H02M5/293 , H02M5/297 , H02M2005/2932 , H02P27/045 , H02P2207/01 , H02P2209/05
摘要： An efficient and reliable power conversion method for converting an input voltage which is a single-phase AC voltage into output voltages forming a two-phase AC voltage includes: receiving an input voltage; designating, as a first target voltage representing consecutive target values of a first-phase output voltage and a second target voltage representing consecutive target values of a second-phase output voltage, AC voltages forming a two-phase AC voltage and having (i) an amplitude 1/√2 times smaller than an amplitude of the input voltage, and (ii) phase differences of +45 degrees and −45 degrees relative to the input voltage; and designating a frequency other than a frequency twice a frequency of the input voltage, as a frequency of the first target voltage and the second target voltage.
摘要翻译： 用于将作为单相交流电压的输入电压转换为形成两相交流电压的输出电压的有效且可靠的功率转换方法包括：接收输入电压; 指定表示表示第二相输出电压的连续目标值的第一目标电压和表示第二相输出电压的连续目标值的第二目标电压，形成两相AC电压的AC电压，并具有（i） 幅度比输入电压的幅度小1 /√2，和（ii）相对于输入电压+45度和-45度的相位差; 并将第二目标电压和第二目标电压的频率指定为不同于输入电压频率两倍的频率。
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4.发明授权Power conversion apparatus, power conversion method, motor system, and three-phase motor 有权电力转换装置，电力转换方法，电机系统和三相电动机公开(公告)号：US09543849B2
公开(公告)日：2017-01-10
申请号：US14783311
申请日：2014-03-28
发明人： Kenji Mizutani , Yuji Kudoh , Nobuyuki Otsuka
CPC分类号： H02M5/04 , H02M5/297 , H02M2005/2932 , H02P27/16
摘要： A power conversion method including: receiving, by a pair of input terminals, an input voltage in which is a single-phase AC voltage; designating a first target voltage ref1, a second target voltage ref2, and a third target voltage ref3 respectively representing consecutive target values of first-phase, second-phase, and third-phase output voltages forming a three-phase AC voltage; and cyclically connecting and disconnecting (i) the input terminals and first output terminals at a duty cycle corresponding to |ref1/in| when an instantaneous value of |in| is greater than an instantaneous value of |ref1|, (ii) the input terminals and second output terminals at a duty cycle corresponding to |ref2/in| when the instantaneous value of |in| is greater than an instantaneous value of |ref2|, and (iii) the input terminals and third output terminals at a duty cycle corresponding to |ref3/in| when the instantaneous value of |in| is greater than an instantaneous value of |ref3|.
摘要翻译： 一种电力转换方法，包括：通过一对输入端子接收作为单相交流电压的输入电压; 指定分别表示形成三相AC电压的第一相，第二相和第三相输出电压的连续目标值的第一目标电压ref1，第二目标电压ref2和第三目标电压ref3; 并且以对应于| ref1 / in |的占空比周期性地连接和断开（i）输入端子和第一输出端子 当| in |的瞬时值 大于| ref1 |的瞬时值，（ii）输入端子和第二输出端子的占空比对应于| ref2 / in | 当| in |的瞬时值 大于| ref2 |的瞬时值，以及（iii）输入端子和第三输出端子，其占空比对应于| ref3 / in | 当| in |的瞬时值 大于瞬时值| ref3 |。
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