公开(公告)号：US20060226995A1

公开(公告)日：2006-10-12

申请号：US11385759

申请日：2006-03-22

申请人： Takatoshi Yamagishi ,  Kazuhisa Nakano ,  Hidesato Morita

发明人： Takatoshi Yamagishi ,  Kazuhisa Nakano ,  Hidesato Morita

IPC分类号： G08B17/12

CPC分类号： G01J5/602 ,  F23N5/082 ,  F23N5/242 ,  F23N2029/00 ,  G08B17/12

摘要： Provided is a flame detector capable of simple and reliable determination of the occurrence or nonoccurrence of fire resulting from a flame based on waveforms detected from detection signals from infrared sensors. The flame detector includes an infrared sensor for detecting an infrared ray, a RAM serving as a waveform storing unit for storing a plurality of waveforms detected from an output signal from the infrared sensor, and a CPU serving as a wavelength determining unit for determining succession of waveforms when at least a first predetermined number of waveforms stored in the RAM are produced for a first predetermined time and at least a second predetermined number of waveforms different from the first predetermined number of waveforms are produced for a second predetermined time different from the first predetermined time.

摘要翻译： 提供了一种火焰探测器，其能够基于从红外传感器的检测信号检测到的波形，简单可靠地确定火焰产生或不发生。 火焰检测器包括用于检测红外线的红外传感器，用作波形存储单元的RAM，用于存储从红外传感器的输出信号检测的多个波形，以及用作波长确定单元的CPU，用于确定 在第一预定时间产生存储在RAM中的至少第一预定数量的波形的波形，并且产生与第一预定数量的波形不同的至少第二预定数量的波形，与第一预定时间不同的第二预定时间 时间。

公开(公告)号：US07297970B2

公开(公告)日：2007-11-20

申请号：US11385759

申请日：2006-03-22

申请人： Takatoshi Yamagishi ,  Kazuhisa Nakano ,  Hidesato Morita

发明人： Takatoshi Yamagishi ,  Kazuhisa Nakano ,  Hidesato Morita

IPC分类号： G08B17/12

CPC分类号： G01J5/602 ,  F23N5/082 ,  F23N5/242 ,  F23N2029/00 ,  G08B17/12

摘要： A flame detector having the following features is capable of simple and reliable determination of the occurrence or nonoccurrence of fire resulting from a flame based on waveforms detected from detection signals from infrared sensors. The flame detector includes an infrared sensor for detecting an infrared ray, a RAM serving as a waveform storing unit for storing a plurality of waveforms detected from an output signal from the infrared sensor, and a CPU serving as a wavelength determining unit for determining succession of waveforms when at least a first predetermined number of waveforms stored in the RAM are produced for a first predetermined time and at least a second predetermined number of waveforms different from the first predetermined number of waveforms are produced for a second predetermined time different from the first predetermined time.

摘要翻译： 具有以下特征的火焰检测器能够基于从红外传感器的检测信号检测到的波形，简单可靠地确定由火焰产生的火焰的发生或不发生。 火焰检测器包括用于检测红外线的红外传感器，用作波形存储单元的RAM，用于存储从红外传感器的输出信号检测的多个波形，以及用作波长确定单元的CPU，用于确定 在第一预定时间产生存储在RAM中的至少第一预定数量的波形的波形，并且产生与第一预定数量的波形不同的至少第二预定数量的波形，与第一预定时间不同的第二预定时间 时间。

公开(公告)号：US08208723B2

公开(公告)日：2012-06-26

申请号：US12578850

申请日：2009-10-14

申请人： Takatoshi Yamagishi ,  Kazuhisa Nakano ,  Kenji Terada

发明人： Takatoshi Yamagishi ,  Kazuhisa Nakano ,  Kenji Terada

IPC分类号： G06K9/00

CPC分类号： G08B17/125

摘要： Provided is a smoke detecting apparatus capable of detecting occurrence of smoke at high sensitivity while suppressing an effect of disturbance. The smoke detecting apparatus for detecting occurrence of smoke by subjecting an image captured by a monitoring camera to image processing includes: an image memory (10) for storing a plurality of images captured by the monitoring camera in a time series; and a smoke detection area selecting portion (20) for calculating a luminance histogram of the same pixel for each predetermined pixel a plurality of times in a past predetermined period based on the plurality of images stored in the image memory (10), detecting presence or absence of a luminance value that has been newly generated due to occurrence of one of an intrusive object and smoke based on the luminance histogram, and identifying candidate regions to be subjected to the image processing.

摘要翻译： 提供一种能够在抑制干扰的效果的同时高灵敏度地检测烟雾的发生的烟雾检测装置。 用于通过使由监视摄像机拍摄的图像经受图像处理来检测烟雾的烟雾检测装置包括：图像存储器，用于以时间序列存储由监视摄像机捕获的多个图像; 以及烟雾检测区域选择部分（20），用于基于存储在图像存储器（10）中的多个图像，在过去的预定时段内，针对每个预定像素多次计算相同像素的亮度直方图，检测存在或 基于亮度直方图，不存在由于发生侵入物体和烟雾中的一个而新产生的亮度值，并且识别要进行图像处理的候选区域。

公开(公告)号：US5926280A

公开(公告)日：1999-07-20

申请号：US901074

申请日：1997-07-28

申请人： Takatoshi Yamagishi ,  Misaki Kishimoto

发明人： Takatoshi Yamagishi ,  Misaki Kishimoto

IPC分类号： H04N7/18 ,  G08B13/196 ,  G08B17/00 ,  G08B17/12 ,  G08B21/00 ,  G01B11/00

CPC分类号： G08B17/125

摘要： A fire detection system extracts fire (flame) portions from images produced by a monitoring camera while eliminating portions depicting artificial light sources. Portions depicting a light source that emits light are extracted from images produced by the monitoring camera. The system judges whether or not pairs of the extracted portions of images produced with the passage of time have a relationship of correspondence. If the extracted portions are contained in images produced for a given period of time, the light source is judged not to be the lamps of a moving vehicle, and is therefore identified as a fire. An area of an overlapping part of the extracted portions of images produced at different time instants, and an overall area of the extracted portions are computed, and the ratio of the area of the overlapping part to the overall area, that is, the area ratio between the extracted portions is computed. Incorrect alarming due to a vehicle at a standstill or a rotating lamp can be prevented.

摘要翻译： 火灾检测系统从监视摄像机产生的图像中提取火焰（火焰）部分，同时消除描绘人造光源的部分。 从监控摄像机产生的图像中提取描绘发光光源的部分。 系统判断随着时间的推移产生的图像的提取部分的对是否具有对应关系。 如果提取的部分被包含在给定时间段内产生的图像中，则将光源判断为不是移动车辆的灯，因此被识别为火灾。 计算在不同时刻产生的图像的提取部分的重叠部分的区域和提取部分的总面积，并且重叠部分的面积与总面积的比率，即面积比 计算提取部分之间的距离。 可以防止由于停在车辆或旋转灯处的车辆引起的不正确的报警。