公开(公告)号：US08924031B1

公开(公告)日：2014-12-30

申请号：US13403091

申请日：2012-02-23

Applicant: Steven R. Evett ,  Susan A. O'Shaughnessy ,  Robert Troy Peters

Inventor： Steven R. Evett ,  Susan A. O'Shaughnessy ,  Robert Troy Peters

IPC: G05D11/00

CPC classification number: A01G25/16 ,  G05B2219/23435 ,  G05B2219/2625 ,  Y02A40/24

Abstract: Irrigation of plants or crops is effected using plant canopy temperature measurements. The process and device include an irrigation scheduling algorithm based on an integrated water stress index (WSI) and an integrated WSI set-point. A WSI is calculated at repeated time intervals and compared to an encoded threshold WSI value that is crop and region specific. If the calculated WSI is greater than the encoded WSI value, a unit of integrated WSI (IWSI) is accumulated. If the time integral exceeds the encoded value for a 24 hour period, an irrigation signal is produced, directing the irrigation system where, when and how much to irrigate. The process and device will automatically schedule crop irrigations when the crop is water stressed and may control a moving or static irrigation system to apply the irrigation. Moreover, irrigation applications can be selectively varied over specified control areas or management zones.

Abstract translation: 使用植物冠层温度测量实现植物或作物的灌溉。 该过程和设备包括基于综合水分胁迫指数（WSI）和综合WSI设定点的灌溉调度算法。 以重复的时间间隔计算WSI，并与作物和区域特异性的编码阈值WSI值进行比较。 如果所计算的WSI大于编码的WSI值，则累积集成WSI（IWSI）的单位。 如果时间积分超过24小时的编码值，则产生灌溉信号，指导灌溉系统在哪里，何时和多少进行灌溉。 当作物受水压力时，过程和装置将自动安排作物灌溉，并可以控制移动或静态灌溉系统施加灌溉。 此外，灌溉应用可以在指定的控制区域或管理区域选择性地变化。

公开(公告)号：US09451745B1

公开(公告)日：2016-09-27

申请号：US13785500

申请日：2013-03-05

Applicant: Susan A. O'Shaughnessy ,  Steven R. Evett ,  Martin A. Hebel ,  Paul D. Colaizzi

Inventor： Susan A. O'Shaughnessy ,  Steven R. Evett ,  Martin A. Hebel ,  Paul D. Colaizzi

IPC: G01J5/00 ,  A01G9/24 ,  A01G25/16 ,  G01J5/02

CPC classification number: A01G7/00 ,  G01J3/36 ,  G01J3/42 ,  G01J5/007 ,  G01J5/025 ,  G01J5/026 ,  G01J5/028 ,  G01J5/04

Abstract: Plant canopy temperature and multi-spectral reflectance are measured with a wireless multi-band sensor, and the temperature data are qualified and the spectral reflectance measurements are classified. The multi-band sensor includes sensors for measuring plant canopy temperature radiation and spectral reflectance over five bands, a microprocessor to receive and store measured data, and a wireless transmitter for transmitting data from the microprocessor to a remote receiver, all enclosed within a single housing. The data are used to detect variations in spectral signature due to plant stress (e.g., disease, water stress) and due to soil background and to qualify temperature data accordingly. The data provide information for decision support algorithms related to the initiation of automatic irrigation scheduling as a function of crop canopy cover, qualification of temperature data used in automatic irrigation scheduling algorithms, and detection of diseased crops for the purpose of withholding irrigations when yield potential is compromised.

Abstract translation: 使用无线多频带传感器测量植物冠层温度和多光谱反射率，并对温度数据进行鉴定，并对光谱反射率测量进行分类。 多波段传感器包括用于测量五个波段的植物冠层温度辐射和光谱反射率的传感器，用于接收和存储测量数据的微处理器，以及用于将数据从微处理器传输到远程接收器的无线发射器，全部封装在单个壳体内 。 该数据用于检测植物胁迫（例如疾病，水分胁迫）和由于土壤背景引起的光谱特征的变化，并相应地限定温度数据。 数据提供了与启动自动灌溉调度相关的决策支持算法的信息，作为作物冠层覆盖的函数，自动灌溉调度算法中使用的温度数据的鉴定，以及为了在收获潜力为 妥协

公开(公告)号：US08947102B1

公开(公告)日：2015-02-03

申请号：US13404491

申请日：2012-02-24

Applicant: Steven R. Evett ,  Scott K. Anderson ,  Joaquin J. Casanova ,  Robert C. Schwartz

Inventor： Steven R. Evett ,  Scott K. Anderson ,  Joaquin J. Casanova ,  Robert C. Schwartz

IPC: G01R27/04

CPC classification number: G01N33/246 ,  G01N27/223

Abstract: Soil water content and bulk electrical conductivity may be determined by time domain reflectometry at multiple depths in the soil such that the entire soil profile from the surface to a user-selected depth may be characterized. A short rise-time pulse is passed into an electrode and the reflected pulse is captured at multiple times. A waveform of reflection coefficient versus time is determined, which may be used to determine the pulse travel time, effective frequency and reflection coefficients at times necessary for the determination of the soil water content and bulk electrical conductivity.

Abstract translation: 土壤水含量和体电导率可以通过土壤中多个深度的时域反射测定来确定，从而可以表征从表面到用户选择深度的整个土壤剖面。 短的上升时间脉冲进入电极，反射的脉冲被多次捕获。 确定反射系数对时间的波形，其可用于确定测定土壤含水量和体电导率所需的时间的脉冲行进时间，有效频率和反射系数。