公开(公告)号：US20240068851A1

公开(公告)日：2024-02-29

申请号：US18236580

申请日：2023-08-22

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jongwoo CHOI ,  Wan Ki PARK ,  JINSOO HAN

IPC: G01F1/36 ,  G01F15/02

CPC classification number: G01F1/363 ,  G01F15/02

Abstract: Provided are a method, an apparatus, and a parameter training method for friction loss-based differential pressure flow rate measurement. The method includes receiving pipe information on a pipe through which fluid passes from a measurement sensor installed on the pipe, calculating physical properties of the fluid based on the pipe information, obtaining a first parameter related to pressure loss of the fluid that occurs in a first passing route in the pipe, obtaining a second parameter related to pressure loss of the fluid that occurs in a second passing route in the pipe, and outputting a flow rate of the fluid based on the pipe information, the physical properties of the fluid, the first parameter, and the second parameter.

公开(公告)号：US20230324210A1

公开(公告)日：2023-10-12

申请号：US17960522

申请日：2022-10-05

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jongwoo CHOI ,  Wan Ki PARK ,  JINSOO HAN

IPC: G01F1/667

CPC classification number: G01F1/668

Abstract: An ultrasonic flow meter is provided. The flow meter includes a detector that transmits a signal to a fluid and receives a signal from the fluid, a memory configured to store instructions, and a processor electrically connected to the memory and configured to execute the instructions, and when the instructions are executed by the processor, the processor calculates a first flow-rate value of the fluid using a signal transmitted to the fluid and a signal transmitted from the fluid, determines whether the first flow-rate value is missing, calculates a second flow-rate value of the fluid using a physical quantity of the fluid if the first flow-rate value is missing, and replaces the missing value with the second flow value, and the physical quantity is measured by an auxiliary sensor located installed on a pipe through which the fluid flows.

公开(公告)号：US20150115846A1

公开(公告)日：2015-04-30

申请号：US14522370

申请日：2014-10-23

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jongwoo CHOI ,  Hyunchul KANG ,  Hyunjoo KANG ,  Seonghee PARK ,  Jungsik SUNG ,  Insu KIM ,  Taegyu KANG

IPC: H01L41/04 ,  H02P29/00

CPC classification number: H01L41/042 ,  F04D27/004 ,  F04D33/00 ,  H05K7/20209

Abstract: The present invention relates to a piezoelectric cooling control apparatus and method, which set pulse parameters based on the temperature of the heating unit of a cooling target device, and thus control piezoelectric cooling. The piezoelectric cooling control apparatus includes a temperature sensing unit for sensing temperature of a heating unit of a cooling target device. A determination unit determines whether to activate piezoelectric cooling, based on the sensed temperature of the heating unit and a temperature setting range. A setting unit is configured to, if it is determined by the determination unit to activate piezoelectric cooling, set pulse parameters based on the temperature setting range and the temperature of the heating unit. A pulse control unit generates a PWM waveform based on the set pulse parameters and outputs the PWM waveform. A piezoelectric cooling unit performs piezoelectric cooling based on the PWM waveform.

Abstract translation: 本发明涉及一种基于冷却对象装置的加热单元的温度设定脉冲参数，从而进行压电冷却的压电冷却控制装置和方法。 压电冷却控制装置包括用于感测冷却目标装置的加热单元的温度的温度感测单元。 确定单元基于感测到的加热单元的温度和温度设定范围来确定是否激活压电冷却。 如果由确定单元确定激活压电冷却，则设置单元被配置为基于加热单元的温度设定范围和温度来设定脉冲参数。 脉冲控制单元根据设定的脉冲参数产生PWM波形，并输出PWM波形。 压电冷却单元基于PWM波形执行压电冷却。

公开(公告)号：US20160352125A1

公开(公告)日：2016-12-01

申请号：US14842918

申请日：2015-09-02

Applicant: Electronics and Telecommunications Research Institute

Inventor： Jongwoo CHOI ,  Il Woo LEE ,  Youn Kwae JEONG

IPC: H02J7/00

CPC classification number: H02J7/0063 ,  G06Q50/06 ,  H02J3/32 ,  H02J2007/0067

Abstract: An apparatus and method for managing energy are disclosed herein. The apparatus for managing energy includes a State-of-Health (SOH) determination unit and an energy distribution unit. The SOH determination unit collects information about energy storage systems and energy facilities, and determines the SOH of each of the energy storage systems based on the information. The energy distribution unit distributes energy stored in the energy storage system to loads inside a building based on the information and the SOH.

Abstract translation: 本文公开了一种用于管理能量的装置和方法。 用于管理能量的装置包括健康状况（SOH）确定单元和能量分配单元。 SOH决定单元收集关于能量存储系统和能源设施的信息，并且基于该信息来确定每个能量存储系统的SOH。 能量分配单元根据信息和SOH将存储在能量存储系统中的能量分配给建筑物内的负载。