公开(公告)号：US20140307096A1

公开(公告)日：2014-10-16

申请号：US14223797

申请日：2014-03-24

Applicant: Electronics and Telecommunications Research Institute

Inventor： Kang-Ho PARK ,  Sung Q. LEE

IPC: G01S15/02 ,  H04N7/18

CPC classification number: G01S15/02 ,  G01S15/04 ,  G08B13/1672 ,  G08B17/04 ,  G08B19/00 ,  H04N7/18

Abstract: Provided is a security surveillance system and method capable of separately detecting fire and intrusion situations on the basis of a sound field variation, including a sound generating device outputting, into a set security surveillance space, a multi-tone sound wave formed of a linear sum of sine waves having a plurality of frequency components, a sound receiving device obtaining sound field information for each frequency represented as sound pressure and a phase from a sound wave received in the security surveillance space, and a sound field signal processing device storing sound field information for each frequency obtained from the sound receiving device in a preparation mode, comparing the stored sound field information with current sound field information for each frequency output from the sound receiving device in a surveillance mode, and determining occurrence of a security situation.

Abstract translation: 提供一种安全监视系统和方法，其能够基于声场变化单独地检测火灾和入侵情况，包括发声装置将设置的安全监视空间输出由线性和 具有多个频率分量的正弦波的声音接收装置，获取表示为声压的每个频率的声场信息的声音接收装置和来自安全监视空间中接收的声波的相位的声音信号处理装置，以及存储声场信息的声场信号处理装置 对于在准备模式下从声音接收装置获得的每个频率，将所存储的声场信息与在监视模式下从声音接收装置输出的每个频率的当前声场信息进行比较，并确定安全情况的发生。

公开(公告)号：US20150003207A1

公开(公告)日：2015-01-01

申请号：US14192508

申请日：2014-02-27

Applicant: Electronics and Telecommunications Research Institute

Inventor： Sung Q. LEE ,  Gunn HWANG ,  WooSub YOUM

IPC: G10K11/18

CPC classification number: H02J50/15 ,  H02J7/025 ,  H02J17/00 ,  H02J50/90

Abstract: Provided is a wireless power transmission apparatus. The apparatus includes an ultrasound transmitter generating an ultrasound signal in response to an external source voltage and transmitting the generated ultrasound signal to a medium layer and an ultrasound receiver receiving the ultrasound signal through the medium layer and converting the received ultrasound signal into a driving voltage. The ultrasound transmitter and receiver are manufactured to control impedance values thereof to be matched with each other and a distance between the ultrasound transmitter and receiver is controlled according to predetermined distance conditions.

Abstract translation: 提供一种无线电力传输装置。 该装置包括：超声波发射器，响应于外部源电压产生超声信号，并将产生的超声信号传输到介质层;以及超声波接收器，通过介质层接收超声波信号，并将接收到的超声信号转换为驱动电压。 制造超声波发射器和接收器以控制其阻抗值彼此匹配，并且根据预定距离条件来控制超声波发射器和接收器之间的距离。

公开(公告)号：US20130250729A1

公开(公告)日：2013-09-26

申请号：US13783185

申请日：2013-03-01

Applicant: Electronics and Telecommunications Research Institute

Inventor： Kang-Ho PARK ,  Sung Q. LEE

IPC: G01S15/88

CPC classification number: G01S15/88 ,  G01S15/04 ,  G08B17/00

Abstract: Disclosed are a method and a system for monitoring a fire based on a detection of sound field variation. The system for monitoring a fire based on a detection of sound field variation includes: a sound generator outputting a sound wave within a defined space according to input voltage; a sound receiver receiving the sound wave within the defined space and obtaining a sound pressure from the received sound wave; and a fire monitor using a sound transfer function representing a ratio of the sound pressure obtained by the sound receiver to input voltage of the sound generator in a preparation mode to calculate reference sound pressure information, using the sound transfer function in a monitoring mode to calculate current sound pressure information, and comparing the reference sound pressure information with the current sound pressure information to determine whether a fire occurs.

Abstract translation: 公开了一种基于声场变化检测来监视火灾的方法和系统。 基于声场变化检测来监视火灾的系统包括：声音发生器，根据输入电压在限定的空间内输出声波; 在所述定义的空间内接收所述声波并从所接收的声波获得声压的声音接收器; 以及火灾监视器，其使用表示在准备模式中由声音接收器获得的声压与声音发生器的输入电压的比率的声音传递函数，以使用监视模式中的声音传递函数来计算参考声压信息，以计算 当前声压信息，并且将参考声压信息与当前声压信息进行比较，以确定是否发生火灾。