GB2432673A - Plant soil dryness detector - Google Patents

Plant soil dryness detector Download PDF

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Publication number
GB2432673A
GB2432673A GB0523859A GB0523859A GB2432673A GB 2432673 A GB2432673 A GB 2432673A GB 0523859 A GB0523859 A GB 0523859A GB 0523859 A GB0523859 A GB 0523859A GB 2432673 A GB2432673 A GB 2432673A
Authority
GB
United Kingdom
Prior art keywords
soil
detector
plant
root
dryness detector
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.)
Pending
Application number
GB0523859A
Other versions
GB0523859D0 (en
Inventor
Linda Green
Saffron Pafey
Fiona Anthony
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.)
HOLLYBUSH PRIMARY SCHOOL
Original Assignee
HOLLYBUSH PRIMARY SCHOOL
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 HOLLYBUSH PRIMARY SCHOOL filed Critical HOLLYBUSH PRIMARY SCHOOL
Priority to GB0523859A priority Critical patent/GB2432673A/en
Publication of GB0523859D0 publication Critical patent/GB0523859D0/en
Publication of GB2432673A publication Critical patent/GB2432673A/en
Pending legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G25/00Watering gardens, fields, sports grounds or the like
    • A01G25/16Control of watering
    • A01G25/167Control by humidity of the soil itself or of devices simulating soil or of the atmosphere; Soil humidity sensors
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/048Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance for determining moisture content of the material
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/24Earth materials
    • G01N33/246Earth materials for water content

Abstract

A resistive moisture detector measures the dryness of soil around the roots of a plant to indicate when the plant needs watering. The probe comprises an upper shaped section 2 having an LED indicator 4 and measurement circuitry 5-8, and a lower probe section which is pushed seep into the soil. The resistance of copper tracking 7 varies with wetness of the soil. When the soil becomes dry the LED 4 is lit. The detector may be pushed back against the soil so that water can be poured down the detector in order to directly water mid and root soil. The upper section 4 may be formed in one of a variety of shapes.

Description

<p>I</p>
<p>PLANT ROOT SOIL DRYNESS DETECTOR.</p>
<p>This invention relates to a deep soil dryness detector. Watering plants effectively is vital for plants to survive.</p>
<p>Watering plants routinely can lead to permanently wet compost and problems associated with over watering. Watering plants less frequently, but deeply and thoroughly helps them to develop healthy root systems. Soil moisture detectors indicate when the topsoil becomes dry and not the area around the roots.</p>
<p>An object of this invention is to provide a warning that indicates when the mid and root soil of a plant needs water.</p>
<p>Accordingly this invention targets the specific area of the plant that needs water -the roots. The base of the invention is pushed into the soil. When the root soil becomes dry a light will come on indicating that the plant needs watering. The detector is pushed back against the soil so that water can be poured down the detector straight into the mid and root soil. Preferably, the invention is made from foamex in a variety of shapes.</p>
<p>An example of the invention will now be described by referring to the accompanying drawings: FIGURE 1 shows a plant with a soil moisture detector; FIGURE 2 shows a plant with a root dryness detector; FIGURE 3 shows the warning light indicator; FIGURE 4 shows the circuit inside the detector; FIGURE 5 shows the rear of the detector.</p>
<p>FIGURE 6 shows the root dryness detector pushed back.</p>
<p>Figure 1 shows a plant with a soil moisture detector (1) pushed into the soil.</p>
<p>Figure 2 shows a plant root dryness detector (2) according to the invention. The probe (3) of the invention is pushed into the depth of the soil. The probes vary in length according to the size of the plant.</p>
<p>As shown in Figure 3 a Light Emitting Diode (LED) will light up (4) when the mid and root soil becomes dry.</p>
<p>Figure 4 shows the circuit, which is placed on the reverse of the invention and on the probe. The circuit consists of, an LED (4), a Lithium 3v battery (5), a resistor (6), copper tracking (7) and a transistor BC 108 (8). The two copper track strips on the probe react to changes in moisture. This resistance is high in the wet and low when in the dry. In this circuit when it gets wet the resistance of the copper track will increase. As it increases the input voltage to the transistor will go above 0.6 volts.</p>
<p>When this happens the transistor switches the LED on.</p>
<p>In Figure 5 the copper track (sensor) can be seen at the base of the detector.</p>
<p>Figure 6 shows the invention pushed back (9) to allow for plants to be watered deeply to develop healthy root systems.</p>

Claims (1)

  1. <p>CLAIMS</p>
    <p>1. A soil dryness detector which targets the area of soil around the roots of a plant.</p>
    <p>2. A plant soil dryness detector as claimed in 1 in which the probe varies in length according to the size of the plant.</p>
    <p>3. A plant soil dryness detector as claimed in 2 that can be pushed back against the soil to allow water to run down the length of the probe in order to water directly into the mid and root soil.</p>
    <p>4. A plant soil dryness detector as claimed in 2 which is made from foamex in a variety of shapes -butterfly, ladybird, flower, snail, flag, insects.</p>
GB0523859A 2005-11-24 2005-11-24 Plant soil dryness detector Pending GB2432673A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0523859A GB2432673A (en) 2005-11-24 2005-11-24 Plant soil dryness detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0523859A GB2432673A (en) 2005-11-24 2005-11-24 Plant soil dryness detector

Publications (2)

Publication Number Publication Date
GB0523859D0 GB0523859D0 (en) 2006-01-04
GB2432673A true GB2432673A (en) 2007-05-30

Family

ID=35601066

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0523859A Pending GB2432673A (en) 2005-11-24 2005-11-24 Plant soil dryness detector

Country Status (1)

Country Link
GB (1) GB2432673A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107807220A (en) * 2017-09-11 2018-03-16 河北农业大学 A kind of monitoring soil moisture device and method of changeable colour and sound warning

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4020417A (en) * 1975-11-26 1977-04-26 Turf Service Laboratories, Inc. Soil moisture indicator device
GB2221036A (en) * 1988-03-22 1990-01-24 David John Cross Soil moisture alarm
GB2353360A (en) * 1999-08-05 2001-02-21 Herbert Booth Device for monitoring soil moisture content
US20040140902A1 (en) * 2003-01-19 2004-07-22 Staples Peter Ethan Wireless soil moisture meter network
JP2004279394A (en) * 2003-03-18 2004-10-07 Asahi Micro Capsule:Kk Soil moisture detection informing management equipment
DE102004037240A1 (en) * 2003-10-16 2005-07-21 Florasys Ag Electronic measuring unit for monitoring watering requirements of potted plants etc., transmits parameters via interface, and indicates plant-specific parameters

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4020417A (en) * 1975-11-26 1977-04-26 Turf Service Laboratories, Inc. Soil moisture indicator device
GB2221036A (en) * 1988-03-22 1990-01-24 David John Cross Soil moisture alarm
GB2353360A (en) * 1999-08-05 2001-02-21 Herbert Booth Device for monitoring soil moisture content
US20040140902A1 (en) * 2003-01-19 2004-07-22 Staples Peter Ethan Wireless soil moisture meter network
JP2004279394A (en) * 2003-03-18 2004-10-07 Asahi Micro Capsule:Kk Soil moisture detection informing management equipment
DE102004037240A1 (en) * 2003-10-16 2005-07-21 Florasys Ag Electronic measuring unit for monitoring watering requirements of potted plants etc., transmits parameters via interface, and indicates plant-specific parameters

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107807220A (en) * 2017-09-11 2018-03-16 河北农业大学 A kind of monitoring soil moisture device and method of changeable colour and sound warning

Also Published As

Publication number Publication date
GB0523859D0 (en) 2006-01-04

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