CN2556919Y - Plant damage alarm device - Google Patents

Plant damage alarm device Download PDF

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Publication number
CN2556919Y
CN2556919Y CN 02278846 CN02278846U CN2556919Y CN 2556919 Y CN2556919 Y CN 2556919Y CN 02278846 CN02278846 CN 02278846 CN 02278846 U CN02278846 U CN 02278846U CN 2556919 Y CN2556919 Y CN 2556919Y
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China
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circuit
conductivity
plant
threshold
output
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Expired - Fee Related
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CN 02278846
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Chinese (zh)
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黄睿
余为
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Individual
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Individual
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Abstract

A plant harmed alarm relates to the electrical alarming technology, comprising a plant current electrode and a conductivity electrode, etc., which can test and amplify the plant current and conductivity by the plant electrode and circuit, and can be compared with the set plant normal threshold; the circuit can automatically, continuously, quickly and precisely alarm when the current value and the conductivity value are different from the normal one while the plants are harmed. The utility model is based on the physical and chemical responding change inside the plants after being harmed, which the physical and chemical responding change can be changed into electrical signal instantaneously and is expressed by the sound and light, etc signals and the process like mechanic sampling which can harm the plants is avoided. The utility model is characterized by small volume, light weight, convenient use, being tested quantitatively to the harmed condition, precise alarming, transmitting the alarming signals in long-distance and being able to be connected with a computer, which can be widely applied in the departments of researching, teaching, agriculture, foresting, gardening, family and environmental protecting and testing, etc.

Description

The hazard of plant alarm
Technical field
The utility model relates to the electronic alarm technology.Specifically a kind of monitoring plant is injured early stage during state, can produce the hazard of plant alarm of alarm signal quickly and accurately.
Technical background
Along with industry constantly develops, the industrial pollution in the many areas of China is serious, adds the influence of climatic damage aspect, causes hazard of corp and the underproduction as acid rain etc.Generally speaking, crops just have tangible appearance symptom after 3 days being injured, thereby are difficult in time take protection and disaster relief measure.Simultaneously, the hazard of plant degree also is difficult to quantize monitoring.At present, also do not find by retrieval to utilize class formula hazard of plant warning product, do not see the report or the related data of similar products at home and abroad yet.
Summary of the invention
Realize concrete technical scheme of the present utility model: its main design concept is as follows: the hazard of plant alarm should have a casing 1, it can be that plastics or other material are made, shape can be rectangle or other shape, and circuit is installed as suitable in the casing not influence.Be equipped with on the casing 1: plant galvanic electrode 2, conductivity electrode 3, show value options button 4, current threshold are provided with knob 5, conductivity threshold is provided with knob 6, display 7, alarm lamp 8, alarm buzzer 9, power switch 10 and attaching plug 11.Printed circuit board (PCB) 12 is installed in the casing 1, power circuit 13, current signal amplifier circuit 14 are arranged on the circuit board, conductivity signal amplifying circuit 15, current threshold is provided with circuit 16, conductivity threshold is provided with circuit 17, display circuit 18, current threshold comparison circuit 19, conductivity threshold comparison circuit 20 and warning circuit 21.
Wherein, an end of plant galvanic electrode 2 has 2 Ag-AgCI electrodes, and one is inserted in the plant root soil during use, and another inserts the plant eustipes part; The other end links to each other with current signal amplifier circuit 14 on the casing interior circuit board by the plugs and sockets on the casing.One end of conductivity electrode 3 is that model is a DJS-1 type electrode, and electrode inserts in the plant root solution during use, and the other end links to each other with conductivity signal amplifying circuit 15 on the casing interior circuit board by plugs and sockets on the casing (also shouldn't plugs and sockets).Show value options button 4 respectively with the casing interior circuit board on current signal amplifier circuit 14, conductivity signal amplifying circuit 15, current threshold are provided with circuit 16, conductivity threshold and circuit 17 etc. is set links to each other.The input of display circuit links to each other on its output and the circuit board; Current threshold is provided with knob 5 and with current threshold on the casing interior circuit board circuit 16 is set and links to each other; Conductivity threshold is provided with knob 6 and with conductivity threshold on the casing interior circuit board circuit 17 is set and links to each other.Display 7 is that group of four figures display tube constitutes, and it links to each other with display circuit 18 on the casing interior circuit board; Alarm lamp 8 is a red light emitting diodes, and it links to each other with the output of warning circuit 21 on the casing interior circuit board; To be ceramic buzzer link to each other with the output of warning circuit 21 on the casing interior circuit board alarm buzzer 9; Attaching plug 11 is three core AC250V.10A specification plug, has power circuit 13 to link to each other on power line one end and circuit board; Plug connects AC220V 50Hz civil power during use.
The power circuit 13 of casing 1 interior circuit board 12 has+and the output of 5V DC voltage-stabilizing supplies with element circuits such as 14,15,16,17,18,19,20 and 21 respectively as operating voltage; The output of current signal amplifier circuit 2 is connected to show value options button 4 and current threshold comparison circuit 19 respectively; The output of conductivity signal amplifying circuit 15 is connected to show value options button 4 and conductivity threshold comparison circuit 20 respectively; The output that current threshold is provided with circuit 16 is connected to show value options button 4 and current threshold comparison circuit 19 respectively; The output that conductivity threshold is provided with circuit 17 is connected to show value options button 4 and conductivity threshold comparison circuit 20 respectively; The output of current threshold comparison circuit 19 links to each other with warning circuit 21; The output of conductivity threshold comparison circuit 20 links to each other with warning circuit 21.
Superiority of the present utility model is that it is to reply with physics in the plant corpus behind the hazard of plant and chemistry to be changed to the basis, can instantaneously be converted to the signal of telecommunication and comes out with signal representation such as acousto-optics.The process of not having machinery sampling equivalent damage plant corpus.Can obtain replying in the plant corpus incessantly.Can transmit alarm signal at a distance, even insert computer, can quantize monitoring, characteristics such as it is accurate to report to the police the hazard of plant condition.
Description of drawings
Fig. 1 hazard of plant alarm structural representation.
Fig. 2 hazard of plant alarm circuit structure chart.
With reference to the accompanying drawings, plant galvanic electrode 2 advances veggetable electricity flow valuve input current signal amplifying circuit 14 Row amplifies and changes into voltage signal and exports show value options button 4 to, when show value options button 4 places electricity Stream is during signal value, and the voltage signal of amplification exports display circuit 18 to through 4, and display circuit 18 is 3 Digital voltmeter, the voltage signal that amplifies is changed into digital display, and (display circuit is available pointer also The formula voltmeter head is as output), simultaneously, current threshold arranges circuit 16 can be normal according to the plant electric current Threshold value is regulated and is set out the normality threshold size, show value options button 4 can be placed current threshold during adjusting One end monitors the size of regulating threshold value at display 7, and its value exports the current threshold comparison circuit to 19 with from the actual measurement value of magnification of current signal amplifier circuit 14 relatively, when hazard of plant, its electric current When signal was lower than its normal value, high level of 19 outputs was transported to warning circuit 21 as alarm signal. Another route conductivity electrode 3 inputs to conductivity signal with the conductivity signal of plant root solution and puts Big circuit 15 amplifies, and changes into voltage signal and export show value options button 4 to. Place when 4 During the conductivity signal value, the voltage signal of amplification exports display circuit 18 to through 4, demonstrates tested The electrical conductivity value of magnification. The while conductivity threshold arranges circuit 17 and can establish according to the adjusting of electrical conductivity normality threshold Put out the normality threshold size, show value options button 4 can be placed conductivity threshold one end during adjusting, Monitor the size of regulating threshold value on the display 7, its value exports conductivity threshold comparison circuit 20 to and comes The actual measurement value of magnification of self-conductance rate signal amplification circuit 15 relatively, when hazard of plant, the plant inner salt Class and organic matter ooze out from cell, cause the potassium of root solution, sodium ion to increase, on the electrical conductivity Rise, when surpassing normal value, the circuit automatic alarm. When hazard of plant, the veggetable electricity conductance will go out When existing exceptional value, its mean value are higher than its normal value greater than just often its conductivity signal of threshold value, electricity High level of conductance threshold value comparison circuit 20 output is as alarm signal, with another road from current threshold The output alarm signal of value comparison circuit 19 is transported in the warning circuit 21 together, and carry out logic and judge, when When arbitrary road was high level in the two paths of signals, warning circuit just produced drive current and exports the indication of reporting to the police to Lamp 8 and warning buzzer 9 produce light, acoustic alarm. Can increase like this accuracy and the reliability of warning.
Embodiment
According to circuit as shown in Figure 2, wherein current signal amplifier circuit 14 is by R 1, R 2, R 3, R 4, R W1, IC 1, IC 2, R 5, R 6, R 7, R 8, IC 3Constitute three amplifier accurate measurement amplifying circuits, this circuit has than high cmrr, and suppressing temperature, to float ability strong, and its multiplication factor is:
U 01＝-R 8/R 6(1+2R 3/R W1)·U 1d
U wherein 01Be A 3Output, U 1dPoor for the output voltage on 2 liang of electrodes of plant galvanic electrode, can change multiplication factor, the integrated instrument amplifier of also available INA102 by regulating Rw1.Conductivity signal amplifying circuit 15 is by R 10, R 11, R 12, R 13, R 14, R 15, R 16, IC 4Constitute, wherein 1C 4The integrated instrument amplifier of available INA102.Its multiplication factor is:
U 02＝-R 16/R 14×U 1d
U wherein 02Be A 4Output, U 1dBe the voltage difference at plant conductivity electrode 3 two ends, change R 16And R 14Value can change its multiplication factor, but should guarantee R 13=R 14, R 15=R 16
Circuit 16 is set current threshold and conductivity threshold is provided with circuit 17 respectively by R 9, R W2And R 17, R W3Constitute their available R W2, R W3Regulate (shell upper knob 5,6) respectively electric current normality threshold and electrical conductivity normality threshold are set, show value options button 4 is four to select one key switch, also other switch such as available band switch is realized, can from 14,15,16,17 4 outputs, choose one the tunnel wantonly and input to display circuit 18, display circuit 18 can adopt 3 finished product digital voltmeters, also can constitute, also can directly use the pointer voltage gauge outfit as display by discrete component and A/D converter.Current threshold compares electrical equipment 19 by IC 5Constitute IC 5Be voltage comparator, as LM311, LM339 etc. all can, IC 5Output with 14 and 16 output compare, when tested current signal equivalence amplification magnitude of voltage sets value less than current threshold, and IC 5Export a high level as alarm signal to warning circuit 21, otherwise IC 5Export a low level, do not produce alarm signal.In like manner conductivity threshold comparison circuit 20 is by IC 6Constitute IC 6Also be voltage comparator such as LM311, LM339 etc. all can, when the equivalence of tested conductivity signal is amplified magnitude of voltage and is set value greater than conductivity threshold, IC 6Export a high level as alarm signal, to warning circuit 21, otherwise IC 6Export a low level, do not produce alarm signal.Warning circuit 21 is by IC 7And 1C 8, R 18Constitute IC 7 Be 2 inputs or door, its function is to judge as alarming logic, when having one the tunnel to be high level in the two-way alarm signal, and IC 7Be output as high level, and deliver to IC as driving signal 8Input, 1C 8For Darlington display driver MC1413, can improve drive current, when IC7 is output as high level, IC 8Be low level, make alarm lamp 8LED light emitting diode forward conduction, cross current-limiting resistance R greatly for not making electric current 18Current limliting.Also flow through enough electric currents in the alarm buzzer 9 simultaneously, send the warning buzzer.
Power circuit 13 is by transformer B, full-bridge type rectifying block ZL, IC 9, IC 10, C 1, C 2, C 3, C 4, C 5, C 6Form.Transformer is transformed into low-voltage ac voltage with AC220V, after ZL does full-wave rectification, respectively through IC 9And IC 10Voltage stabilizing becomes ± 5V DC voltage, wherein IC 9Be 7805, be output as+5V IC 9Be 7905, be output as-5V, to supply with element circuit as operating voltage.
More than various element circuits all can form different circuit forms and realize desired function by electronic component, the form of its variation is a lot, has not just enumerated one by one.
Among Fig. 2, the title and the parameter of each circuit elements device are as follows:
R 1＝R 2＝220KΩ，R 3＝R 4＝100KΩ，R W1＝20KΩ，
IC 1, IC 2, IC 3Be OP07 or μ A741 etc.
R 5＝R 6＝5·1KΩ，R 7＝R 8＝510KΩ，R 9＝R 17＝10KΩ，R W2＝R W3＝10KΩ，
R 10＝R 11＝R 12＝820KΩ，R 13＝R 14＝10KΩ，R 15＝R 16＝470KΩ；
Conductivity electrode: DJS-I type, IC 5, IC 6: LM339;
31/2 bit digital voltmeter head: VP81352V IC 7: 74LS32; IC 8: LM1413
Light emitting diode: LED, Φ 6 ruddiness
Voltage buzzer: 3～5V direct drive formula IC 9: 7805 IC 10: 7905
Transformer B: two 5V1A
Rectifier bridge ZL:IN4001 * 4 C 1=C 4=0.01 μ F C 2=C 5=200 μ F/16VC 3=C 6=100 μ F/16V
The plant galvanic electrode is made
Get filamentary silver and be about 2cm, soft glass pipe 3～4cm is long, about internal diameter φ 2mm, on flame filamentary silver is enclosed in the glass tube, it is long to expose 1cm approximately, and the filamentary silver other end is drawn glass tube with lead, two silver electrodes that make are together in parallel, and as anode, a slice silver strip is as negative electrode, receive on the 1.5V battery, make electrolyte with 0.9%NaCl solution, plating one deck silver chlorate AgCl, at this moment gray on silver electrode, clean with distilled water, can become the plant electric current and use.

Claims (3)

1, a kind of hazard of plant alarm, it is characterized in that: (1) is provided with plant galvanic electrode (2) on the casing, conductivity electrode (3), show value options button (4), current threshold is provided with knob (5), conductivity threshold is provided with knob (6), display (7), alarm lamp (8), alarm buzzer (9), power switch (10) and attaching plug (11), printed circuit board (PCB) (12) is installed in the casing (1), power circuit (13) is arranged on the circuit board, current signal amplifier circuit (14), conductivity signal amplifying circuit (15), current threshold is provided with circuit (16), conductivity threshold is provided with circuit (17), display circuit (18), current threshold comparison circuit (19), conductivity threshold comparison circuit (20) and warning circuit (21).
2, according to the described hazard of plant alarm of claim 1, it is characterized in that an end of plant galvanic electrode (2) has 2 Ag-AgCI electrodes, one is inserted in the plant root soil during use, and another inserts the plant eustipes part; The other end links to each other with current signal amplifier circuit (14) on the casing interior circuit board by the plugs and sockets on the casing.One end of conductivity electrode (3) is that model is a DJS-1 type electrode, and electrode inserts in the plant root solution during use, and the other end links to each other with conductivity signal amplifying circuit (15) on the casing interior circuit board by plugs and sockets on the casing.Show value options button (4) respectively with the casing interior circuit board on current signal amplifier circuit (14), conductivity signal amplifying circuit (15), current threshold are provided with circuit (16), conductivity threshold and circuit (17) is set links to each other.The input of display circuit links to each other on its output and the circuit board, current threshold is provided with knob (5) and with current threshold on the casing interior circuit board circuit (16) is set and links to each other, conductivity threshold is provided with knob (6) and with conductivity threshold on the casing interior circuit board circuit (17) is set and links to each other, display (7) is that group of four figures display tube constitutes, and it links to each other with display circuit (18) on the casing interior circuit board; Alarm lamp (8) is a red light emitting diodes, it links to each other with the output of warning circuit (21) on the casing interior circuit board, to be ceramic buzzer link to each other with the output of warning circuit (21) on the casing interior circuit board alarm buzzer (9), attaching plug (11) is three core AC250V.10A specification plug, has power circuit (13) to link to each other on power line one end and circuit board.
3, according to the described hazard of plant alarm of claim 1, the power circuit (13) that it is characterized in that casing (1) interior circuit board (12) has+5V DC voltage-stabilizing output supply (14) respectively, (15), (16), (17), (18), (19), (20) and element circuits such as (21) as operating voltage, the output of current signal amplifier circuit (2) is connected to show value options button (4) and current threshold comparison circuit (19) respectively, the output of conductivity signal amplifying circuit (15) is connected to show value options button (4) and conductivity threshold comparison circuit (20) respectively, and the output that current threshold is provided with circuit (16) is connected to show value options button (4) and current threshold comparison circuit (19) respectively; The output that conductivity threshold is provided with circuit (17) is connected to show value options button (4) and conductivity threshold comparison circuit (20) respectively; The output of current threshold comparison circuit (19) links to each other with warning circuit (21); The output of conductivity threshold comparison circuit (20) links to each other with warning circuit (21).
CN 02278846 2002-08-19 2002-08-19 Plant damage alarm device Expired - Fee Related CN2556919Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 02278846 CN2556919Y (en) 2002-08-19 2002-08-19 Plant damage alarm device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 02278846 CN2556919Y (en) 2002-08-19 2002-08-19 Plant damage alarm device

Publications (1)

Publication Number Publication Date
CN2556919Y true CN2556919Y (en) 2003-06-25

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Application Number Title Priority Date Filing Date
CN 02278846 Expired - Fee Related CN2556919Y (en) 2002-08-19 2002-08-19 Plant damage alarm device

Country Status (1)

Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105813358A (en) * 2014-12-31 2016-07-27 西安麟字半导体照明有限公司 Current surge based plant growth lamp alarm system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105813358A (en) * 2014-12-31 2016-07-27 西安麟字半导体照明有限公司 Current surge based plant growth lamp alarm system

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C19 Lapse of patent right due to non-payment of the annual fee
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