METHOD FOR MONITORING FUGITIVE GAS EMISSIONS FROM THE SOIL, VIA VERTICAL CONCENTRATION MEASUREMENTS
    31.
    发明申请
    METHOD FOR MONITORING FUGITIVE GAS EMISSIONS FROM THE SOIL, VIA VERTICAL CONCENTRATION MEASUREMENTS 有权
    通过垂直浓度测量监测来自土壤的排放气体排放的方法

    公开(公告)号:US20130208262A1

    公开(公告)日:2013-08-15

    申请号:US13823296

    申请日:2011-10-04

    Inventor: Paolo Andreussi

    Abstract: Method for the quantification of the fugitive gas flow from a dispersed source (A) by monitoring with a remote detection optical instrument mounted on an aircraft (UAV) which moves at a determined height along a plane (5) perpendicular to the direction of the wind field (u), such wind field being known through suitable positioning of meteorological stations within and in areas neighbouring the site to be monitored according to known techniques and use of commercially available diagnostic meteorological models. By this instrument discrete vertical measurements are carried out of the fugitive gas concentration averaged over said height along the whole width (W) of the plane (S) to yield corresponding mean vertical concentration values and, according to mean wind speed values detected at said discrete vertical measurements, a value of the fugitive gas flow (Q) is obtained by integrating the product of the mean vertical concentration values and of the corresponding mean wind speed values with respect to the surface of the sampling plane (5). The obtained value of the fugitive gas flow (Q) is corrected by a corrective factor (a) obtainable by comparing concentration values obtained by direct measurements and values calculated by dispersion models.

    Abstract translation: 通过用安装在飞行器(UAV)上的远程检测光学仪器进行监测来量化来自分散源(A)的短暂气体流的方法,其以垂直于风向的平面(5)在确定的高度移动 场(u),通过根据已知技术和商业上可用的诊断气象模型的使用,通过适当地定位要监测的站点内和附近的区域中的气象站,已知这种风场。 通过该仪器,沿着平面(S)的整个宽度(W)在所述高度上平均的逸散气体浓度进行离散垂直测量,以产生相应的平均垂直浓度值,并且根据在所述离散值处检测到的平均风速值 通过将平均垂直浓度值和对应的平均风速值的乘积相对于采样平面(5)的表面积分,获得短暂的气体流量(Q)的值。 通过比较通过直接测量获得的浓度值和通过色散模型计算的值可获得的校正因子(a)来校正所获得的缓释气体流量(Q)值。

    Airborne/spaceborne oil spill determining system
    32.
    发明授权
    Airborne/spaceborne oil spill determining system 失效
    机载/航天漏油决定系统

    公开(公告)号:US08395119B2

    公开(公告)日:2013-03-12

    申请号:US12611312

    申请日:2009-11-03

    Abstract: An airborne/spaceborne oil spill detection method includes the step of providing a moderate-resolution-imaging-spectroradiometer and sensing the spectral reflections from two optical bands one of which is in the near infrared range. The spectral contrast shift from two adjacent areas of water are calculated and a warning issued when an oil spill or other contaminant is detected. A system for detecting an oil spill or other contaminant on the surface of water is also disclosed.

    Abstract translation: 一种机载/航天漏油检测方法包括提供中分辨率成像光谱辐射计并感测来自两个光谱的光谱反射的步骤,其中一个处于近红外范围。 计算两个相邻区域的光谱对比度偏移,并在检测到漏油或其他污染物时发出警告。 还公开了一种用于检测水表面上的溢油或其它污染物的系统。

    System and method for remote, free-space optical detection of potential threat agent
    33.
    发明授权
    System and method for remote, free-space optical detection of potential threat agent 有权
    用于远程,自由空间光学检测潜在威胁剂的系统和方法

    公开(公告)号:US07684043B2

    公开(公告)日:2010-03-23

    申请号:US11680309

    申请日:2007-02-28

    Abstract: A system and method for free space, optical remote sensing of a potential threat agent using spectrally responsive sensor material. In one example the sensor material is formed by particles, which in one particular form are porous photonic crystals. The particles are dispersed into an area being monitored for the presence of the potential threat agent. A pair of lasers is used to generate optical light beams that are directed at the sensor particles after the particles have been dispersed. The light reflected by the sensor particles is then analyzed. The presence of the potential threat agent causes a shift in the spectral peak of light reflected from the sensor particles that can be sensed using photo detectors and a processing subsystem. The system can be tuned to remotely detect for specific chemical, biological or environmental agents that may be present within a given area.

    Abstract translation: 使用光谱响应传感器材料的自由空间,潜在威胁剂的光学遥感的系统和方法。 在一个示例中,传感器材料由颗粒形成,其在一种特定形式中是多孔光子晶体。 颗粒被分散到正在监测的潜在威胁剂的存在的区域中。 使用一对激光器在颗粒分散之后产生指向传感器颗粒的光束。 然后分析由传感器颗粒反射的光。 潜在威胁剂的存在导致从可以使用光电检测器和处理子系统感测的传感器颗粒反射的光的光谱峰值的偏移。 该系统可以被调整以远程检测可能存在于给定区域内的特定化学,生物或环境因素。

    APPARATUS AND METHOD FOR DETECTING A GAS USING AN UNMANNED AERIAL VEHICLE

    公开(公告)号:US20180209902A1

    公开(公告)日:2018-07-26

    申请号:US15506218

    申请日:2015-08-24

    Abstract: A gas detection apparatus mountable to an unmanned aerial vehicle (UAV) comprises a transceiver module, a reflector module and an electronics module. The transceiver module comprises a laser emitter and a laser receiver; the laser emitter is tunable to emit a laser spectroscopy beam that can detect at least one target gas, and the laser receiver is configured to convert the laser spectroscopy beam into absorption spectroscopy measurement data. The reflector module comprises a reflective surface capable of reflecting the laser spectroscopy beam emitted by the laser emitter to the laser receiver. The transceiver and reflector modules are mountable on parts of the UAV such that the transceiver and reflector modules are spaced apart and the laser emitter and laser receiver have an unimpeded line of sight with the reflecting surface. The electronics module is communicative with the transceiver module and with a flight computer of the UAV, and comprises a gas detection program that determines a concentration of the target gas from the measurement data received from the transceiver module; when the determined concentration of the target gas meets or exceeds an alarm threshold, the program records the received measurement data and instructs the flight computer to execute a defined flight plan for the UAV.

    Method for monitoring fugitive gas emissions from the soil, via vertical concentration measurements
    39.
    发明授权
    Method for monitoring fugitive gas emissions from the soil, via vertical concentration measurements 有权
    通过垂直浓度测量来监测来自土壤的挥发性气体排放的方法

    公开(公告)号:US08730461B2

    公开(公告)日:2014-05-20

    申请号:US13823296

    申请日:2011-10-04

    Inventor: Paolo Andreussi

    Abstract: Method for the quantification of the fugitive gas flow from a dispersed source (A) by monitoring with a remote detection optical instrument mounted on an aircraft (UAV) which moves at a determined height along a plane (S) perpendicular to the direction of the wind field (u), such wind field being known through suitable positioning of meteorological stations within and in areas neighboring the site to be monitored according to known techniques and use of commercially available diagnostic meteorological models. By this instrument discrete vertical measurements are carried out of the fugitive gas concentration averaged over said height along the whole width (W) of the plane (S) to yield corresponding mean vertical concentration values and, according to mean wind speed values detected at said discrete vertical measurements, a value of the fugitive gas flow (Q) is obtained by integrating the product of the mean vertical concentration values and of the corresponding mean wind speed values with respect to the surface of the sampling plane (S). The obtained value of the fugitive gas flow (Q) is corrected by a corrective factor (a) obtainable by comparing concentration values obtained by direct measurements and values calculated by dispersion models.

    Abstract translation: 通过用安装在飞行器(UAV)上的远程检测光学仪器进行监测来定量来自分散源(A)的短暂气体流的方法,其以垂直于风向的平面(S)在确定的高度移动 场(u),通过根据已知技术和商业上可用的诊断气象模型的使用,通过适当地定位要监测的站点内和附近的区域中的气象站,已知这种风场。 通过该仪器,沿着平面(S)的整个宽度(W)在所述高度上平均的逸散气体浓度进行离散垂直测量,以产生相应的平均垂直浓度值,并且根据在所述离散值处检测到的平均风速值 通过将平均垂直浓度值和对应的平均风速值的乘积相对于采样平面(S)的表面积分来获得短暂气体流量(Q)的值。 通过比较通过直接测量获得的浓度值和通过色散模型计算的值可获得的校正因子(a)来校正所获得的缓释气体流量(Q)值。

    Methods and systems for plume characterization
    40.
    发明授权
    Methods and systems for plume characterization 有权
    羽流表征的方法和系统

    公开(公告)号:US07840380B2

    公开(公告)日:2010-11-23

    申请号:US12039947

    申请日:2008-02-29

    Abstract: A method for mapping, in three dimensions, the contents of a plume within an area is described. The method includes distributing spectrally sensitive sensors on a first surface of a vehicle, distributing spectrally sensitive emitters on a second surface of a vehicle, causing the emitters to output a signal directed through the plume and towards the sensors, receiving at least a portion of the emitter output at the sensors, communicating an output of the sensors, the sensor output caused by the received optical emitter output, to a central processing unit, and analyzing the sensor outputs and time-based vehicle positions to characterize the plume and an area surrounding the plume in three dimensions over a period of time.

    Abstract translation: 描述了在三维中映射区域内的羽流的内容的方法。 该方法包括在车辆的第一表面上分布频谱敏感的传感器,在车辆的第二表面上分配频谱敏感的发射器,使得发射器输出引导通过羽流并朝向传感器的信号,接收至少一部分 在传感器处输出发射器,将传感器的输出,由接收到的光发射器输出引起的传感器输出传送到中央处理单元,以及分析传感器输出和基于时间的车辆位置,以表征羽流和周围的区域 在一段时间内三维羽流。

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