WO2010095920A1 - A sensor profile adjuster - Google Patents

A sensor profile adjuster Download PDF

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Publication number
WO2010095920A1
WO2010095920A1 PCT/MY2009/000210 MY2009000210W WO2010095920A1 WO 2010095920 A1 WO2010095920 A1 WO 2010095920A1 MY 2009000210 W MY2009000210 W MY 2009000210W WO 2010095920 A1 WO2010095920 A1 WO 2010095920A1
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WO
WIPO (PCT)
Prior art keywords
sensor
moisture
sensor data
database
data
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/MY2009/000210
Other languages
French (fr)
Inventor
Kim Seong Foong
Ning Yap
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mimos Bhd
Original Assignee
Mimos Bhd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mimos Bhd filed Critical Mimos Bhd
Priority to CN200980158788.6A priority Critical patent/CN102404987B/en
Publication of WO2010095920A1 publication Critical patent/WO2010095920A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G25/00—Watering gardens, fields, sports grounds or the like
    • A01G25/16—Control of watering
    • A01G25/167—Control by humidity of the soil itself or of devices simulating soil or of the atmosphere; Soil humidity sensors

Definitions

  • the present invention relates to a sensor profile adjuster, more particularly relates to a method of adjusting and converting sensor data readings in an agricultural management system.
  • the sensors in the system may degrade or provide inaccurate readings.
  • the further use of these erroneous data may lead to erroneous conclusions about the system being used.
  • a malfunction situation may escape undetected or reversely, a pseudo malfunction may be reported causing needless alarm to the user. Such events may pose a tremendous economic loss as well as a potentially dangerous situation.
  • a method of adjusting and converting sensor readings in an agricultural management system when moisture values are available includes the steps of receiving sensor data from sensor, determining if sensor data packet contains moisture, retrieving moisture reading from data packet, retrieving dependent constants based on moisture reading and storing data in system database and displayed in user interface.
  • a method of adjusting and converting sensor readings in an agricultural management system when moisture values are not available includes the steps of receiving sensor data from sensor, determining if sensor data packet contains moisture, calculating drift value for each sensor; wherein the drift value is used to calculate actual sensor data, and storing data in system database and displayed in user interface.
  • a sensor profile adjusting module wherein the module is part of an agricultural management system allows adjusting and converting of sensor readings to be stored in the database, wherein said module includes a method of moisture compensation calculation and drift value compensation calculation.
  • FIG. 1 illustrates an architectural diagram of the agriculture management system of the present invention.
  • FIG. 2 illustrates incoming process flow in the sensor profile adjuster module of the present invention.
  • the present invention relates to a sensor profile adjusting module and method of adjusting and converting sensor data.
  • this specification will describe the present invention according to the preferred embodiments of the present invention. However, it is to be understood that limiting the description to the preferred embodiments of the invention is merely to facilitate discussion of the present invention and it is envisioned that those skilled in the art may devise various modifications and equivalents without departing from the scope of the appended claims.
  • the present invention provides for a sensor profile adjusting module (10) that adjusts and converts the value of the reading sent by a sensor in the system by using a formula.
  • the formula is applied directly to all incoming sensor data from the sensor output.
  • the corrected sensor data will then be converted to a more user-friendly unit such as parts-per-million (ppm) and stored into a system database if the data from the sensor is received in other units such as millivolt.
  • the sensor profile adjusting module (10) is part of a larger agricultural management system (20) as shown in Figure 1.
  • Each sensor is assigned to a specific constant, which is dependent on the sensor type and sensor. Therefore, each sensor carries a different constant value and each sensor will be assigned to a specific constant based on its type in order to be differentiated between one another.
  • the user interface of this system (20) that links between the system (20) and the sensors enables users to modify the constants or variables on a table listing in the database using Asynchronous JavaScript and XML (AJAX) technology. This changed table will take effect immediately and will be reflected in the data stored in the database as soon as sensor data is sent to the system (20).
  • AJAX Asynchronous JavaScript and XML
  • the method of adjusting and converting the sensor data includes compensating for moisture in the soil where the sensor has been placed, drift value of the sensor data and conversion from millivolt to parts-per-million (ppm).
  • an agricultural management system (20) receives sensor data from sensor.
  • the system determines if the sensor data packet contains any moisture values.
  • the system (20) uses the moisture values to retrieve the specific constant values such as m, c and f that are used to differentiate sensors.
  • the module (10) then uses these constants to calculate the ppm values for the data packet.
  • the data is now stored into the system (20) database and displayed in a user interface of the system (20).
  • the sensor profile adjusting module (10) will then proceed to calculate the drift value that starts from a sensor's deploy time. Thus, the exact time of when the sensor was deployed is required. With this information, the drift value can be calculated. For example, a sensor was deployed at 10 a.m. and the current time is 2 p.m. The drift value is assigned to be of a value x. The sensor reading received by the system (20) at 2 p.m. is y.
  • the system (20) applies a conversion formula in the module (10) in order to convert the actual sensor data from millivolt to p.p.m and displays it on the user interface of the system (20).
  • the module (10) will store a value of 'P' in the database at the respective locations to indicate a null sensor reading.
  • the described invention can be used in any sensor system that requires an adjustment of sensor readings that needs to compensate for drift values and moisture values.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Environmental Sciences (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
  • Management, Administration, Business Operations System, And Electronic Commerce (AREA)

Abstract

A sensor profile adjusting module (10) where a method of adjusting and converting sensor readings in an agricultural management system (20) is provided, where the method includes the steps of receiving sensor data from sensor, determining if sensor data packet contains moisture, retrieving moisture reading from data packet, retrieving dependent constants based on moisture reading or calculating drift value based on lab research for each sensor and storing data in the system (20) database and displaying in a user interface.

Description

A SENSOR PROFILE ADJUSTER
FIELD OF INVENTION
The present invention relates to a sensor profile adjuster, more particularly relates to a method of adjusting and converting sensor data readings in an agricultural management system.
BACKGROUND OF INVENTION
In modern agricultural industries, accuracy and perfection is essential. Accurate record keeping and gathering of accurate data have all become crucial factors for improving overall agricultural system. Most operating agricultural systems have a plurality of sensors for monitoring various parameters during operation for control purposes.
In some occasions, the sensors in the system may degrade or provide inaccurate readings. The further use of these erroneous data may lead to erroneous conclusions about the system being used. A malfunction situation may escape undetected or reversely, a pseudo malfunction may be reported causing needless alarm to the user. Such events may pose a tremendous economic loss as well as a potentially dangerous situation.
Thus there is a need to provide for a solution that allows for compensation of inaccuracies in sensor hardware systems to ensure that these errors will not be magnified and further affect the accuracy of systems as a whole. SUMMARY OF INVENTION
Accordingly there is provided a method of adjusting and converting sensor readings in an agricultural management system when moisture values are available, said method includes the steps of receiving sensor data from sensor, determining if sensor data packet contains moisture, retrieving moisture reading from data packet, retrieving dependent constants based on moisture reading and storing data in system database and displayed in user interface.
There is also provided a method of adjusting and converting sensor readings in an agricultural management system when moisture values are not available, said method includes the steps of receiving sensor data from sensor, determining if sensor data packet contains moisture, calculating drift value for each sensor; wherein the drift value is used to calculate actual sensor data, and storing data in system database and displayed in user interface.
There is also provided a sensor profile adjusting module wherein the module is part of an agricultural management system allows adjusting and converting of sensor readings to be stored in the database, wherein said module includes a method of moisture compensation calculation and drift value compensation calculation.
The present invention consists of several novel features and a combination of parts hereinafter fully described and illustrated in the accompanying description and drawings, it being understood that various changes in the details may be made without departing from the scope of the invention or sacrificing any of the advantages of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
The present invention will be fully understood from the detailed description given herein below and the accompanying drawings which are given by way of illustration only, and thus are not limitative of the present invention, wherein:
FIG. 1 illustrates an architectural diagram of the agriculture management system of the present invention.
FIG. 2 illustrates incoming process flow in the sensor profile adjuster module of the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
The present invention relates to a sensor profile adjusting module and method of adjusting and converting sensor data. Hereinafter, this specification will describe the present invention according to the preferred embodiments of the present invention. However, it is to be understood that limiting the description to the preferred embodiments of the invention is merely to facilitate discussion of the present invention and it is envisioned that those skilled in the art may devise various modifications and equivalents without departing from the scope of the appended claims.
The following detailed description of the preferred embodiments will now be described in accordance with the attached drawings, either individually or in combination.
The present invention provides for a sensor profile adjusting module (10) that adjusts and converts the value of the reading sent by a sensor in the system by using a formula. The formula is applied directly to all incoming sensor data from the sensor output. The corrected sensor data will then be converted to a more user-friendly unit such as parts-per-million (ppm) and stored into a system database if the data from the sensor is received in other units such as millivolt. The sensor profile adjusting module (10) is part of a larger agricultural management system (20) as shown in Figure 1.
Each sensor is assigned to a specific constant, which is dependent on the sensor type and sensor. Therefore, each sensor carries a different constant value and each sensor will be assigned to a specific constant based on its type in order to be differentiated between one another. The user interface of this system (20) that links between the system (20) and the sensors enables users to modify the constants or variables on a table listing in the database using Asynchronous JavaScript and XML (AJAX) technology. This changed table will take effect immediately and will be reflected in the data stored in the database as soon as sensor data is sent to the system (20).
The method of adjusting and converting the sensor data includes compensating for moisture in the soil where the sensor has been placed, drift value of the sensor data and conversion from millivolt to parts-per-million (ppm).
As illustrated in an embodiment of the present invention in Figure 2, an agricultural management system (20) receives sensor data from sensor. The system determines if the sensor data packet contains any moisture values. When it is confirmed that the data packet does contain moisture values, the system (20) uses the moisture values to retrieve the specific constant values such as m, c and f that are used to differentiate sensors. The module (10) then uses these constants to calculate the ppm values for the data packet. The data is now stored into the system (20) database and displayed in a user interface of the system (20). The retrieved constant values from moisture readings are used to derive a formula as below: Y = [ITiX + C] x f where Y is actual sensor data and X is the final sensor data after massaged by this correction formula. In this case is the moisture reading. This value will be display in the PAMS User interface.
Conversely, if the system does not indicate moisture values from the received data from the sensors, the sensor profile adjusting module (10) will then proceed to calculate the drift value that starts from a sensor's deploy time. Thus, the exact time of when the sensor was deployed is required. With this information, the drift value can be calculated. For example, a sensor was deployed at 10 a.m. and the current time is 2 p.m. The drift value is assigned to be of a value x. The sensor reading received by the system (20) at 2 p.m. is y.
Therefore,
Actual sensor data = [Total hours x Drift value] + Sensor reading = [(4hours) x (x)\ + y = 4 x + y
Subsequently, the system (20) applies a conversion formula in the module (10) in order to convert the actual sensor data from millivolt to p.p.m and displays it on the user interface of the system (20). The retrieved constant values from moisture readings are used to derive a formula as below: Y = [mX + c] x f where m, c and f are the constant values retrieved from the moisture readings and Y is the actual sensor data.
These corrected values are stored into the system (20) database and displayed on the user interface.
In the event that the user has not configured any drift values or moisture values in the system (20), the module (10) will store a value of 'P' in the database at the respective locations to indicate a null sensor reading.
The described invention can be used in any sensor system that requires an adjustment of sensor readings that needs to compensate for drift values and moisture values.

Claims

1. A method of adjusting and converting sensor readings in an agricultural management system (20) when moisture values are available, said method includes the steps of: i. receiving sensor data from sensor; ii. determining if sensor data packet contains moisture; iii. retrieving moisture reading from data packet; iv. retrieving dependent constants based on moisture reading; and v. storing data in system (20) database and displayed in a user interface.
2. The method as claimed in claim 1 , wherein the sensor data received in millivolt is converted to parts-per-million (ppm) using the retrieved dependent constants in a sensor profile adjusting module (10).
3. The method as claimed in claim 2, wherein the converted sensor data is displayed in a user interface of the agricultural management system (20).
4. The method as claimed in claim 1 , wherein the moisture value is not configured in the system (20), the value'0' will be stored in the database.
5. A method of adjusting and converting sensor readings in an agricultural management system (20) when moisture values are not available, said method includes the steps of: i. receiving sensor data from sensor; ii. determining if sensor data packet contains moisture; iii. calculating drift value based on lab research for each sensor; wherein the drift value is used to calculate actual sensor data; and iv. storing data in system (20) database and displayed in a user interface.
6. The method as claimed in claim 5, wherein the sensor data received in millivolt is converted to parts-per-million (ppm) using the calculated drift value in a sensor profile adjusting module (10).
7. The method as claimed in claim 6, wherein the converted sensor data is displayed in a user interface of the agricultural management system (20).
8. The method as claimed in claim 5, wherein the drift value is not configured in system (20), the value'0' will be stored in the database.
9. The method as claimed in claim 1 and 5, wherein the data stored in the database is modified using Asynchronous JavaScript and XML (AJAX) technology.
10. A sensor profile adjusting module (10) wherein the module (10) is part of an agricultural management system (20) allows adjusting and converting of sensor readings to be stored in the database, wherein said module (10) includes a method of moisture compensation calculation and drift value compensation calculation.
PCT/MY2009/000210 2009-02-19 2009-12-21 A sensor profile adjuster Ceased WO2010095920A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200980158788.6A CN102404987B (en) 2009-02-19 2009-12-21 A sensor profile adjuster

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
MYPI20090651 2009-02-19
MYPI20090651 2009-02-19

Publications (1)

Publication Number Publication Date
WO2010095920A1 true WO2010095920A1 (en) 2010-08-26

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000049705A (en) * 2000-04-25 2000-08-05 한종필 Method and system for measuring water content of soil
US6691563B1 (en) * 2000-04-11 2004-02-17 The United States Of America As Represented By The Department Of Agriculture Universal dielectric calibration method and apparatus for moisture content determination in particulate and granular materials
JP2004077412A (en) * 2002-08-22 2004-03-11 Kyushu Electric Power Co Inc Moisture sensor and culture solution feeding device
WO2008031152A1 (en) * 2006-09-12 2008-03-20 Aquaspy Group Pty Ltd Soil moisture sensor with data transmitter

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1895022A (en) * 2005-07-14 2007-01-17 韩其勋 Automatic temperature and humidity regulating system for culturing orchid in greenhouse

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6691563B1 (en) * 2000-04-11 2004-02-17 The United States Of America As Represented By The Department Of Agriculture Universal dielectric calibration method and apparatus for moisture content determination in particulate and granular materials
KR20000049705A (en) * 2000-04-25 2000-08-05 한종필 Method and system for measuring water content of soil
JP2004077412A (en) * 2002-08-22 2004-03-11 Kyushu Electric Power Co Inc Moisture sensor and culture solution feeding device
WO2008031152A1 (en) * 2006-09-12 2008-03-20 Aquaspy Group Pty Ltd Soil moisture sensor with data transmitter

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Publication number Publication date
CN102404987B (en) 2013-06-12
CN102404987A (en) 2012-04-04

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