公开(公告)号：US20050195086A1

公开(公告)日：2005-09-08

申请号：US10913276

申请日：2004-08-06

申请人： John King

发明人： John King

IPC分类号： G01J5/00 ,  G08B17/12 ,  G01J5/02

CPC分类号： G01J5/0014

摘要： To detect flames burning carbon-free hydrogen-bearing fuels, first, second, and third sensors sense first, second and third regions of an infrared water emission band, and generate first, second, and third signals. A processor generates an alarm when the sensors indicate flame. The first region low cut-off wavelength may be lower than the second region low cut-off wavelength. The third region high cut-off wavelength may be higher than the second region high cut-off wavelength. The combined regions may include nearly the entire water emission band. The processor may discriminate distances to flames using the sensor signals. A fourth sensor may sense moisture concentration, and the processor may discriminate distances based thereon. The regions may be defined such that for a fire, all three regions receive substantial energy, with second region to first region energy ratio less than 1:1 and a second region to third region energy ratio less than 1:1.

摘要翻译： 为了检测燃烧无碳氢的燃料的火焰，第一，第二和第三传感器感测红外线水发射带的第一，第二和第三区域，并且产生第一，第二和第三信号。 当传感器指示火焰时，处理器会产生报警。 第一区域低截止波长可以低于第二区域低截止波长。 第三区域高截止波长可以高于第二区域高截止波长。 组合区域可以包括几乎整个水排放带。 处理器可以使用传感器信号来区分与火焰的距离。 第四传感器可以感测水分浓度，并且处理器可以基于此区分距离。 这些区域可以被定义为使得对于火灾，所有三个区域都接受相当大的能量，其中第二区域到第一区域能量比小于1:1，第二区域到第三区域能量比小于1:1。

公开(公告)号：US20030044042A1

公开(公告)日：2003-03-06

申请号：US10143386

申请日：2002-05-10

申请人： Detector Electronics Corporation

发明人： John D. King ,  Paul M. Junck

IPC分类号： G06K009/00

CPC分类号： G08B17/125

摘要： An apparatus and method for performing first and second imaging processes contemporaneously, in particular where one of the processes is detecting fires based on images of the flames. The apparatus includes an image sensor for producing a video image, a frame grabber for capturing first frames and second frames, a processor for processing the data within the frames, and an output device. The apparatus may also include an adjustment mechanism for adjusting the image settings of the image sensor between settings suitable for flame imaging and non-flame imaging, and a control mechanism for controlling the image settings of the image sensor. In the method at least two first frames are obtained, and a plurality of second frames are obtained. The first and second frames are used for first and second processes. The first and second processes are contemporaneous, so that they are carried out within the same time period without interfering with one another. When the first process is flame detection, individual pairs of pixels having a property such as intensity that meets a first threshold are identified within the first frames, and are assembled into blobs. Additional properties of the pixel pairs and the blobs overall are evaluated in relation with additional thresholds. Blobs or pixels that do not meet the thresholds are excluded. Any blobs remaining after all evaluations are considered fires.

摘要翻译： 一种用于同时执行第一和第二成像过程的设备和方法，特别是其中一个过程基于火焰的图像来检测火灾。 该装置包括用于产生视频图像的图像传感器，用于捕获第一帧和第二帧的帧抓取器，用于处理帧内的数据的处理器和输出装置。 该装置还可以包括用于在适于火焰成像和非火焰成像的设置之间调整图像传感器的图像设置的调节机构和用于控制图像传感器的图像设置的控制机构。 在该方法中，获得至少两个第一帧，并且获得多个第二帧。 第一和第二帧用于第一和第二进程。 第一和第二过程是同时期的，使得它们在相同的时间段内进行而不会彼此干扰。 当第一过程是火焰检测时，在第一帧内识别具有满足第一阈值的强度等性质的各个像素对，并被组装成斑块。 与附加阈值相关地评估像素对和总体的附加属性。 排除不符合阈值的Blob或像素。 所有评估后剩余的任何斑点都被视为火灾。

公开(公告)号：US5218201A

公开(公告)日：1993-06-08

申请号：US696810

申请日：1991-05-07

申请人： Kenneth C. Cormier

发明人： Kenneth C. Cormier

IPC分类号： F23N5/08 ,  G01J1/04 ,  G01J1/44

CPC分类号： F23N5/082 ,  G01J1/04 ,  G01J1/0437

摘要： The linearity of a photoresistive device at varying levels of radiant signal is improved by masking the sensitive area of the photoresistive device so that only a portion of the sensitive area is illuminated. The masking prevents exposure of the entire surface area of the cell, which increases the dynamic range, allowing a more linear, small signal sensitivity over wide variations in brightness.

摘要翻译： 通过掩蔽光致抗蚀剂装置的敏感区域，使得只有敏感区域的一部分被照亮，改善了辐射信号水平变化的光致抗蚀剂装置的线性。 掩蔽防止电池的整个表面区域的暴露，这增加了动态范围，允许在宽泛的亮度变化下更线性，小的信号灵敏度。

公开(公告)号：US4162425A

公开(公告)日：1979-07-24

申请号：US811573

申请日：1977-06-30

申请人： Theodore E. Larsen ,  James M. Celt

发明人： Theodore E. Larsen ,  James M. Celt

IPC分类号： G01J1/42 ,  G01T1/18 ,  G01J1/46

CPC分类号： G01T1/18

摘要： Circuitry directed to the rapid de-ionization of ultraviolet detectors by increasing the mobility of the ionized gases within the tubes which will enable the tubes to more effectively operate at low temperatures. The circuitry includes connecting circuitry for shorting the elements of the tube such that they will be at the same potential immediately after firing and also includes circuitry for the shunting of the tube immediately after firing to limit the number of ions generated in the discharge process. The shorting of the elements increases the surface area of negative electrodes for the recapture of the ions and the distance through which the ions must travel is reduced by a factor of one-half.

摘要翻译： 电路旨在通过增加管内电离气体的迁移率来快速去除紫外线检测器，这将使管能够在低温下更有效地运行。 电路包括连接电路，用于短路管的元件，使得它们在点火之后将处于相同的电位，并且还包括用于在烧制之后立即分流管的电路，以限制在放电过程中产生的离子数。 这些元件的短路会增加负极的表面积，以便重新捕获离子，离子必须行进的距离减少一半。

公开(公告)号：US07155029B2

公开(公告)日：2006-12-26

申请号：US10143386

申请日：2002-05-10

申请人： John D. King ,  Paul M. Junck

发明人： John D. King ,  Paul M. Junck

IPC分类号： G06K9/00

CPC分类号： G08B17/125

摘要： An apparatus and method for performing first and second imaging processes contemporaneously, in particular where one of the processes is detecting fires based on images of the flames. The apparatus includes an image sensor for producing a video image, a frame grabber for capturing first frames and second frames, a processor for processing the data within the frames, and an output device. The apparatus may also include an adjustment mechanism for adjusting the image settings of the image sensor between settings suitable for flame imaging and non-flame imaging, and a control mechanism for controlling the image settings of the image sensor. In the method at least two first frames are obtained, and a plurality of second frames are obtained. The first and second frames are used for first and second processes. The first and second processes are contemporaneous, so that they are carried out within the same time period without interfering with one another. When the first process is flame detection, individual pairs of pixels having a property such as intensity that meets a first threshold are identified within the first frames, and are assembled into blobs. Additional properties of the pixel pairs and the blobs overall are evaluated in relation with additional thresholds. Blobs or pixels that do not meet the thresholds are excluded. Any blobs remaining after all evaluations are considered fires.

公开(公告)号：US5434560A

公开(公告)日：1995-07-18

申请号：US62803

申请日：1993-05-11

申请人： John D. King ,  Richard A. Kevitt

发明人： John D. King ,  Richard A. Kevitt

IPC分类号： G08B17/02 ,  G08B17/12

CPC分类号： G08B17/02

摘要： A system for detecting randomly occurring signals, particularly signals representative of a fire condition, having a radiation detector for receiving the signals, peak detector circuits for identifying the peak values of the received signals, peak duration signals for determining the time between adjacent peak signals, and a collection buffer for accumulating values representative of successive peak durations. The peak duration times are compared and evaluated to determine whether regularly occurring patterns of the received signals exist, or whether the received signals are randomly occurring, and an output signal is generated whenever the comparison indicates that the received signals are random in nature.

摘要翻译： 用于检测随机出现的信号，特别是代表火情的信号的系统，具有用于接收信号的辐射检测器，用于识别接收信号的峰值的峰值检测器电路，用于确定相邻峰值信号之间的时间的峰值持续时间信号， 以及用于累加表示连续峰值持续时间的值的收集缓冲器。 对峰值持续时间进行比较和评估，以确定是否存在接收信号的定期出现的模式，或者接收到的信号是否随机发生，并且每当比较表明接收到的信号本质上是随机的时，就产生输出信号。

公开(公告)号：US07726177B2

公开(公告)日：2010-06-01

申请号：US11715252

申请日：2007-03-06

申请人： Morton Lee Schlesinger ,  Anthony Charles Young ,  John Dee King

发明人： Morton Lee Schlesinger ,  Anthony Charles Young ,  John Dee King

IPC分类号： G01N19/10

CPC分类号： G01N27/122 ,  G01N33/0044

摘要： An apparatus for sensing a constituent in an environment including a sensor circuit and a suppression circuit. The sensor circuit has a sensor element and an operating state control element. The sensor element senses the constituent by presenting an electrical parameter which varies as a function of a degree of the constituent. The control element maintains the sensor at a preferred operating state. A detected electrical parameter of said sensor element is subject to error resulting from a leakage of electrical current between the control element and the sensor element. The suppression circuit reduces or stops the leakage to reduce the error.

摘要翻译： 一种在包括传感器电路和抑制电路的环境中检测构件的装置。 传感器电路具有传感器元件和操作状态控制元件。 传感器元件通过呈现根据构件的程度而变化的电参数来感测构件。 控制元件将传感器保持在优选的操作状态。 所述传感器元件的检测到的电参数由于控制元件和传感器元件之间的电流泄漏而产生错误。 抑制电路减少或停止泄漏以减少误差。

公开(公告)号：US20030147080A1

公开(公告)日：2003-08-07

申请号：US10359526

申请日：2003-02-05

申请人： Detector Electronics Corporation

发明人： Randall G. Sarkis ,  John M. Jarvis

IPC分类号： G01N021/00

CPC分类号： G01N21/359 ,  G01N21/3504

摘要： An apparatus and method for open-path gas detection. The apparatus includes a radiation source and first and second radiation detectors sensitive to radiation in first and second spectral bands. The long cut-off wavelength of the second spectral band is longer than the long cut-off wavelength of the first spectral band, and the short cut-off wavelength of the second spectral band is shorter than the short cut-off wavelength of the short spectral band, such that the second spectral band is wider than and completely overlaps the first spectral band. Radiation from the radiation source passes through the area to be checked for gas, and is partially absorbed if gas is present. The path between the radiation source and the first and second radiation detectors need not be enclosed, and may exceed 100 meters in length. A processor compares intensity signals from the radiation detectors with a threshold value, and generates an output signal indicating a presence of gas based on the comparison. The method includes the steps of passing radiation through an area, and sensing radiation that has passed through the area within first and second spectral bands, wherein the long cut-off wavelength of the second spectral band is longer than the long cut-off wavelength of the first spectral band, and the short cut-off wavelength of the second spectral band is shorter than the short cut-off wavelength of the short spectral band. The intensities in the spectral bands are compared with a threshold value, and the presence of gas is indicated based on the comparison.

摘要翻译： 用于开放式气体检测的装置和方法。 该装置包括辐射源和对第一和第二光谱带中的辐射敏感的第一和第二辐射检测器。 第二光谱带的长截止波长比第一光谱带的长截止波长长，第二光谱带的短截止波长短于短截止波长 使得第二光谱带宽于第一光谱带并且与第一光谱带完全重叠。 来自辐射源的辐射通过要检查的气体的区域，并且如果存在气体则被部分吸收。 辐射源与第一和第二辐射探测器之间的路径不需要被封闭，并且长度可能超过100米。 处理器将来自辐射检测器的强度信号与阈值进行比较，并且基于该比较产生指示气体存在的输出信号。 该方法包括以下步骤：使辐射通过一个区域，并感测已经穿过第一和第二光谱带内的区域的辐射，其中第二光谱带的长截止波长比长截止波长长 第一光谱带和第二光谱带的短截止波长比短光谱带的短截止波长短。 将光谱带中的强度与阈值进行比较，并且基于比较来指示气体的存在。

公开(公告)号：US5804825A

公开(公告)日：1998-09-08

申请号：US852981

申请日：1997-05-07

申请人： Frederick J. Schuler

发明人： Frederick J. Schuler

IPC分类号： G08B17/12

CPC分类号： G08B17/12

摘要： A radiation detector having wide-range sensitivity is provided. In accordance with one embodiment of the invention, a radiation detector for detecting a radiation condition is provided. The radiation detector includes a plurality of sensors each of which detect radiation in a spectral band and output an analog signal in response to the amount of radiation in the spectral band, a converter system associated with each of the sensors for converting each analog signal to a digital signal, and a processor coupled to the converter system for using the digital signals to output a detection signal. The converter system has a sensitivity range which includes a minimum magnitude and a maximum magnitude of the analog signals. The processor can detect the radiation condition in an environment which concurrently induces the minimum magnitude in the analog signal of one of the sensors, and the maximum magnitude in the analog signal of a different one of the sensors. The radiation detector may, for example, be a fire detector which detects fire conditions such as unwanted or potentially dangerous fires or flames.

摘要翻译： 提供了具有宽范围灵敏度的放射线检测器。 根据本发明的一个实施例，提供了一种用于检测放射状况的辐射检测器。 辐射检测器包括多个传感器，每个传感器检测光谱带中的辐射并响应于光谱带中的辐射量输出模拟信号，与每个传感器相关联的转换器系统，用于将每个模拟信号转换为 数字信号和耦合到转换器系统的处理器，用于使用数字信号输出检测信号。 转换器系统具有包括模拟信号的最小幅度和最大幅度的灵敏度范围。 处理器可以在同时引起传感器之一的模拟信号中的最小幅度以及不同传感器的模拟信号中的最大幅度的环境中检测辐射状况。 例如，辐射检测器可以是火灾探测器，其检测诸如不需要的或潜在危险的火焰或火焰的火情。

公开(公告)号：US5475222A

公开(公告)日：1995-12-12

申请号：US349931

申请日：1994-12-05

申请人： John D. King

发明人： John D. King

IPC分类号： G01N21/03 ,  G01N21/35 ,  G01N21/61 ,  G01N21/17

CPC分类号： G01N21/03 ,  G01N21/3504 ,  G01N21/61

摘要： A ruggedized gas detector having two or more perforated concentric cylinders and having a concentric screen inside the innermost cylinder. A pair of perforated tubes are positioned inside the perforated screen, and an infrared light source is placed adjacent one end of one of the tubes and an infrared sensor is placed adjacent the other tube. A pair of inclined mirrors are positioned adjacent the respective other ends of the two tubes, and an optical light path is created from the IR source through a first tube, reflected by the mirrors to a return optical path through the second tube and ultimately to the IR sensor.

摘要翻译： 具有两个或多个穿孔同心圆筒并且在最内圆筒内具有同心筛网的坚固气体检测器。 一对穿孔管定位在穿孔筛内，红外光源邻近一根管的一端放置，红外传感器放置在另一根管附近。 一对倾斜镜位于两个管的相应另一端附近，并且从IR源通过第一管产生光学光路，第一管被反射镜反射回到通过第二管的返回光路，并最终到达 红外传感器