CN106353005A - Chicken farm remote temperature monitoring system based on source electrode follower circuit - Google Patents
Chicken farm remote temperature monitoring system based on source electrode follower circuit Download PDFInfo
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- CN106353005A CN106353005A CN201610885859.4A CN201610885859A CN106353005A CN 106353005 A CN106353005 A CN 106353005A CN 201610885859 A CN201610885859 A CN 201610885859A CN 106353005 A CN106353005 A CN 106353005A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
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Abstract
The invention discloses a chicken farm remote temperature monitoring system based on a source electrode follower circuit. The chicken farm remote temperature monitoring system is characterized by being mainly composed of a microcontroller, a GPRS (General Packet Radio Service) wireless transmission module, a signal transmitting and processing module, an analog-digital conversion module, a temperature sensor and a mobile terminal; wherein the GPRS wireless transmission module and the signal transmitting and processing module are respectively connected with the microcontroller, the analog-digital conversion module is connected with the signal transmitting and processing module, the temperature sensor is connected with the analog-digital conversion module, and the mobile terminal is connected with the GPRS wireless transmission module through a wireless network. The chicken farm remote temperature monitoring system can filter out interference signals in detection signals and eliminate effects of the interference signals, so that the detection signals which are transmitted to the mobile terminal through the wireless network are more accurate; thus, a farmer can accurately know the temperature situation in a barton and adjust the temperature accurately and timely, and the healthy growth of chickens is facilitated.
Description
Technical field
The present invention relates to home poultry raising field, specifically refer to a kind of chicken farm remote temperature based on source follower
Monitoring system.
Background technology
Chicken contacts and environment between in every way in growth course and influences each other, and wherein, temperature is to chicken
Growth promoter and health have extremely close relationship.People need to understand the temperature in hen house in real time during poultry
Situation, is timely adjusted to the temperature of hen house when too high or too low for temperature.In order to anywhere or anytime to hen house temperature
Degree is monitored, and current raiser is generally monitored to the temperature in hen house using remote temperature monitoring system, and according to prison
Survey result timely the temperature in hen house to be adjusted.However, existing remote temperature monitoring system can not be well to prison
The interference signal surveyed in signal is processed, so that the temperature information that raiser receives is inaccurate, leads to the raiser cannot
Accurately the temperature in hen house is adjusted, the health of impact chicken.
Content of the invention
It is an object of the invention to overcoming the existing remote temperature monitoring system can not be well to dry in monitoring signals
Disturb the defect that signal is processed, a kind of chicken farm remote temperature monitoring system based on source follower is provided.
The purpose of the present invention is achieved through the following technical solutions: a kind of chicken farm based on source follower remotely temperature
Degree monitoring system, mainly by microcontroller, at the gprs wireless transport module being connected with microcontroller respectively and signal transmission
Reason module, the analog-to-digital conversion module being connected with process of signal transmission module, the temperature sensing being connected with analog-to-digital conversion module
Device, and the mobile terminal composition being connected with gprs wireless transport module by wireless network；Described process of signal transmission mould
Block by amplifier p3, amplifier p4, amplifier p5, audion vt2, negative pole is connected with the outfan of amplifier p3, positive pole with
The electric capacity c6 that the base stage of audion vt2 is connected, negative pole is connected with the negative pole of electric capacity c6, the current collection of positive pole and audion vt2
The electric capacity c7 that pole is connected, negative pole is sequentially connected with the negative pole of electric capacity c6 after resistance r4 through resistance r5, positive pole and amplifier
The electric capacity c9 that the positive pole of p4 is connected, positive pole is connected with the colelctor electrode of audion vt2, negative pole is connected with the negative pole of electric capacity c9
Electric capacity c8, the electric capacity c10 that negative pole is connected with the outfan of amplifier p4, positive pole is connected with microcontroller, plus earth,
The electric capacity c11 that negative pole is sequentially connected with the negative pole of electric capacity c10 after resistance r6 through potentiometer r7, the positive pole phase with amplifier p3
The source follower connecting, the high-pass filtering circuit being connected with source follower, and be connected with high-pass filtering circuit
The low-pass filter circuit composition connecing；The outfan of described amplifier p5 is connected with the negative pole of electric capacity c9, its negative pole and its export
End is connected, its positive pole is then connected with the control end of potentiometer r7；The negative pole of described amplifier p4 is connected with its outfan；
The negative pole of described amplifier p3 is connected with its outfan；The input of described low-pass filter circuit is connected with analog-to-digital conversion module
Connect.
Further, described source follower is by field effect transistor mos, audion vt3, positive pole and field effect transistor mos
The electric capacity c12 that grid is connected, negative pole is connected with high-pass filtering circuit, one end is connected with the positive pole of electric capacity c12, the other end
Meet the resistance r8 of power supply, negative pole is connected, positive pole is grounded after resistance r9 electric capacity c13, negative pole and field with the positive pole of electric capacity c12
The electric capacity c14 that the source electrode of effect pipe mos is connected, positive pole is connected with the colelctor electrode of audion vt3, negative pole and audion vt3
Emitter stage be connected, the electric capacity c15 of plus earth, p pole is connected with the positive pole of electric capacity c15, n pole sequentially through resistance r12 and
The Zener diode d4 being connected with the base stage of audion vt3 after resistance r10, n pole is connected with the drain electrode of field effect transistor mos, p
The diode d5 that pole is connected with the junction point of resistance r10 and resistance r12 after resistance r11, and p pole is with electric capacity c14 just
The diode d3 composition that pole is connected, n pole is connected with the positive pole of amplifier p3.
By amplifier p2, positive pole is connected described high-pass filtering circuit with the positive pole of amplifier p2, negative pole and amplifier p2
The electric capacity c4 that is connected of outfan, negative pole is connected with the negative pole of amplifier p2, positive pole is connected with the outfan of amplifier p2
The electric capacity c5 connecing, one end is connected with the positive pole of amplifier p2, the resistance r3 of other end ground connection, and negative pole is with amplifier p2's
The electric capacity c3 composition that positive pole is connected, positive pole is connected with low-pass filter circuit；The outfan of described amplifier p2 and electric capacity c12
Negative pole be connected.
Described low-pass filter circuit is by amplifier p1, audion vt1, n pole positive pole phase with amplifier p1 after resistance r1
Connect, the diode d1 that is connected with analog-to-digital conversion module of p pole, positive pole is connected with the n pole of diode d1, negative pole and amplifier
The electric capacity c1 that the outfan of p1 is connected, is serially connected in the resistance r2 between the negative pole of amplifier p1 and outfan, and positive pole with
The electric capacity c2 composition that the negative pole of amplifier p1 is connected, negative pole is connected with the base stage of audion vt1；Described audion vt1's
Colelctor electrode is connected with the outfan of amplifier p1, grounded emitter；The outfan of described amplifier p1 and the positive pole of electric capacity c3
It is connected.
Described amplifier p1～p5 is tl061 type amplifier.
The present invention compared with the prior art, has advantages below and a beneficial effect:
The process of signal transmission module of the present invention can filter to the interference signal in detection signal, and exclusive PCR is believed
Number impact so that by wireless network be sent to mobile terminal detection signal more accurate, raiser can be accurate
Temperature conditionss in solution hen house, and timely, accurate adjustment is carried out to temperature, it is beneficial to growing up healthy and sound of chicken.
Brief description
Fig. 1 is the overall structure figure of the present invention.
Fig. 2 is the structure chart of the process of signal transmission module of the present invention.
Fig. 3 is the structure chart of the source follower of the present invention.
Specific embodiment
With reference to embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited to
This.
Embodiment
As shown in figure 1, the present invention is mainly by microcontroller, process of signal transmission module, analog-to-digital conversion module, temperature sensing
Device, gprs wireless transport module and mobile terminal composition.
This temperature sensor is arranged in hen house, for gathering the temperature in hen house and exporting corresponding analogue signal to mould
Number modular converter, it is real that it adopts the fst600-101 type temperature sensor that Hunan Fierst sensor company limited produces
Existing.The analogue signal that this analog-to-digital conversion module is used for exporting temperature sensor is converted to digital signal and exports to signal transmission
Reason module, this analog-to-digital conversion module to be realized using ad7810 modulus conversion chip, the vin+ of this ad7810 modulus conversion chip
Pin is connected with the signal output interface of temperature sensor with vin- pin, its dout pin then with process of signal transmission module
Input be connected.
As the processing center of the present invention, it is carried out this microcontroller to the detection signal of process of signal transmission module output
It is sent to gprs wireless transport module after coding；This microcontroller to be realized using at89s51 single-chip microcomputer, this at89s51 monolithic
The p1.0i/o interface of machine is connected with the outfan of process of signal transmission module, and its p2.1i/o interface is then wirelessly transferred with gprs
The signal input interface of module is connected.This gprs wireless transport module is connected with mobile terminal by wireless network, and it can
So that detection signal is sent to mobile terminal by wireless network, it adopts kelink-2010 wireless transport module to realize.Should
Mobile terminal is then mobile phone or computer, and raiser can understand the temperature conditionss in hen house in real time by mobile phone or computer.
During work, temperature sensor gathers the real time temperature signal in hen house, and exports corresponding analogue signal to modulus
Modular converter.This analog-to-digital conversion module is transferred to process of signal transmission module, signal after converting analog signals into digital signal
Transmission process module is transferred to microcontroller after being processed digital signal.After this microcontroller is to encoding digital signals
It is sent to gprs wireless transport module, this gprs wireless transport module then sends a signal to mobile terminal by wireless network.
In order to preferably process to detection signal, as shown in Fig. 2 this process of signal transmission module is by amplifier p3,
Amplifier p4, amplifier p5, audion vt2, negative pole is connected with the outfan of amplifier p3, the base of positive pole and audion vt2
The electric capacity c6 that pole is connected, the electric capacity that negative pole is connected with the negative pole of electric capacity c6, positive pole is connected with the colelctor electrode of audion vt2
C7, negative pole is sequentially connected with the negative pole of electric capacity c6 after resistance r4 through resistance r5, positive pole is connected with the positive pole of amplifier p4
Electric capacity c9, the electric capacity c8 that positive pole is connected with the colelctor electrode of audion vt2, negative pole is connected with the negative pole of electric capacity c9, negative pole
Be connected with the outfan of amplifier p4, electric capacity c10 that positive pole is connected with microcontroller, plus earth, negative pole are sequentially through electricity
Position the device r7 and electric capacity c11 being connected with the negative pole of electric capacity c10 after resistance r6, the source electrode being connected with the positive pole of amplifier p3 with
With circuit, the high-pass filtering circuit being connected with source follower, and the low-pass filtering being connected with high-pass filtering circuit
Circuit forms；The outfan of described amplifier p5 is connected with the negative pole of electric capacity c9, its negative pole is connected with its outfan, its just
Pole is then connected with the control end of potentiometer r7；The negative pole of described amplifier p4 is connected with its outfan；Described amplifier p3
Negative pole be connected with its outfan；The input of described low-pass filter circuit is connected with analog-to-digital conversion module.
Wherein, this amplifier p4, amplifier p5, resistance r6, potentiometer r7, electric capacity c9, electric capacity c8, electric capacity c7, electric capacity c6,
Audion vt2, resistance r4 and resistance r5 are collectively forming a trap circuit, and this trap circuit can be to signals collecting and transmission
During Hz noise filtered, make detection signal more stable during transmission and process, improve mobile terminal
The accuracy of the detection signal receiving.This amplifier p3～p5 is all using tl061 type amplifier, this amplifier p5, resistance r6
And potentiometer r7 then constitutes the positive-feedback circuit of amplifier p4, this positive-feedback circuit is used for carrying out impedance conversion.This audion
Model 3dg6 of vt2, the capacitance of this electric capacity c6～c9 is 0.047 μ f, and the capacitance of electric capacity c10 and electric capacity c11 is 0.1 μ
F, model 1n4001 of diode d2, the resistance of resistance r4～r6 is 15k ω, and the maximum value of potentiometer r7 is 2k ω.
This high-pass filtering circuit is made up of amplifier p2, electric capacity c3, electric capacity c4, electric capacity c5 and resistance r3.Wherein, this electricity
The positive pole holding c4 is connected with the positive pole of amplifier p2, and negative pole is connected with the outfan of amplifier p2.The negative pole of electric capacity c5 with
The negative pole of amplifier p2 is connected, and positive pole is connected with the outfan of amplifier p2.One end of resistance r3 is with amplifier p2 just
Pole is connected, and the other end is grounded.The negative pole of electric capacity c3 is connected with the positive pole of amplifier p2, and positive pole is connected with low-pass filter circuit
Connect.The outfan of described amplifier p2 is connected with source follower.
This amplifier p2, electric capacity c4 and electric capacity c5 collectively form a high pass filter；From low-pass filter circuit output
Detection signal be input to high pass filter after electric capacity c3, by high pass filter to the High-frequency Interference being entrained in detection signal
Signal is filtered.Model tl061 of this amplifier p2, the capacitance of electric capacity c4 and electric capacity c5 is 10 μ f, this high-pass filtering
The cut-off frequency of device is 100hz.The capacitance of this electric capacity c3 is 0.1 μ f, and the resistance of resistance r3 is then 22k ω.
In addition, this low-pass filter circuit is by amplifier p1, audion vt1, resistance r1, resistance r2, electric capacity c1, electric capacity c2 with
And diode d1 composition.
During connection, the n pole of diode d1 is connected with the positive pole of amplifier p1 after resistance r1, p pole and analog digital conversion mould
Block is connected.The positive pole of electric capacity c1 is connected with the n pole of diode d1, and negative pole is connected with the outfan of amplifier p1.Resistance
R2 is serially connected between negative pole and the outfan of amplifier p1.Electric capacity c2 positive pole is connected with the negative pole of amplifier p1, negative pole and three
The base stage of pole pipe vt1 is connected.The colelctor electrode of described audion vt1 is connected with the outfan of amplifier p1, grounded emitter.
The outfan of described amplifier p1 is connected with the positive pole of electric capacity c3.
This amplifier p1, audion vt1, electric capacity c1, electric capacity c2, resistance r1 and resistance r2 are collectively forming a low pass filtered
Ripple device, this low pass filter can filter to the low-frequency interference signal being entrained in detection signal.The type of this amplifier p1
Number it is tl061, the model of audion vt1 is then 3dg6, and the capacitance of this electric capacity c1 and electric capacity c2 is 0.047 μ f, resistance r1's
Resistance is 10k ω, and the resistance of resistance r2 is then 24k ω, and the cut-off frequency of this low pass filter is 0.05hz.This diode d1's
Model 1n4001.
As shown in figure 3, this source follower is by field effect transistor mos, audion vt3, resistance r8, resistance r9, resistance
R10, resistance r11, resistance r12, electric capacity c12, electric capacity c13, electric capacity c14, electric capacity c15, diode d3, Zener diode d4 and
Diode d5 forms.
During connection, the positive pole of electric capacity c12 is connected with the grid of field effect transistor mos, the outfan of negative pole and amplifier p2
It is connected.One end of resistance r8 is connected with the positive pole of electric capacity c12, another termination 9v.The negative pole of electric capacity c13 is with electric capacity c12's
Positive pole is connected, and positive pole is grounded after resistance r9.The negative pole of electric capacity c14 is connected with the source electrode of field effect transistor mos, positive pole and three
The colelctor electrode of pole pipe vt3 is connected.The negative pole of electric capacity c15 is connected with the emitter stage of audion vt3, plus earth.Voltage stabilizing two
The p pole of pole pipe d4 is connected with the positive pole of electric capacity c15, the n pole sequentially base stage with audion vt3 after resistance r12 and resistance r10
It is connected.The n pole of diode d5 is connected with the drain electrode of field effect transistor mos, p pole after resistance r11 with resistance r10 and resistance
The junction point of r12 is connected.The p pole of diode d3 is connected with the positive pole of electric capacity c14, and n pole is connected with the positive pole of amplifier p3
Connect.
Wherein, this field effect transistor mos constitutes source follower；This audion vt3, electric capacity c15, Zener diode d4, electricity
Resistance r12, resistance r11 and diode d5 then constitute a constant-current circuit, ensure that the stability of source follower.This
Effect pipe mos adopts 2sk15 type field effect transistor, and audion vt3 then adopts 2sc400 type audion, the capacitance of electric capacity c12～c15
It is 0.1 μ f, the resistance of this resistance r8 and resistance r9 is 100k ω, and the resistance of resistance r10 is 1.2k ω, resistance r11 and electricity
The resistance of resistance r12 is 18k ω, and the model of diode d3～d5 is 1n4001.This source follower can be to detection letter
Number frequency be adjusted, its output detection signal more stable, so that subsequent conditioning circuit is preferably processed to detection signal.
This process of signal transmission module can be carried out to the low-frequency interference signal in detection signal and high-frequency interferencing signal
Filter, the impact excluding the interference signal so that by wireless network be sent to mobile terminal detection signal more accurate, raiser
The temperature conditionss in hen house can accurately be understood, and temperature is carried out with timely, accurate adjustment, be beneficial to the health one-tenth of chicken
Long.
As described above, the present invention just can be realized well.
Claims (5)
1. a kind of chicken farm remote temperature monitoring system based on source follower it is characterised in that main by microcontroller
Device, the gprs wireless transport module being connected with microcontroller respectively and process of signal transmission module, with process of signal transmission mould
The analog-to-digital conversion module that block is connected, the temperature sensor being connected with analog-to-digital conversion module, and by wireless network with
The mobile terminal composition that gprs wireless transport module is connected；Described process of signal transmission module by amplifier p3, amplifier p4,
Amplifier p5, audion vt2, negative pole is connected with the outfan of amplifier p3, positive pole is connected with the base stage of audion vt2
Electric capacity c6, the electric capacity c7 that negative pole is connected with the negative pole of electric capacity c6, positive pole is connected with the colelctor electrode of audion vt2, negative pole is suitable
Secondary be connected with the negative pole of electric capacity c6 after resistance r4 through resistance r5, electric capacity c9 that positive pole is connected with the positive pole of amplifier p4,
The electric capacity c8 that positive pole is connected with the colelctor electrode of audion vt2, negative pole is connected with the negative pole of electric capacity c9, negative pole and amplifier p4
Outfan be connected, electric capacity c10 that positive pole is connected with microcontroller, plus earth, negative pole are sequentially through potentiometer r7 and electricity
The electric capacity c11 being connected with the negative pole of electric capacity c10 after resistance r6, the source follower being connected with the positive pole of amplifier p3, with
The high-pass filtering circuit that source follower is connected, and the low-pass filter circuit composition being connected with high-pass filtering circuit；
The outfan of described amplifier p5 is connected with the negative pole of electric capacity c9, its negative pole is connected with its outfan, its positive pole then with electricity
The control end of position device r7 is connected；The negative pole of described amplifier p4 is connected with its outfan；The negative pole of described amplifier p3 with
Its outfan is connected；The input of described low-pass filter circuit is connected with analog-to-digital conversion module.
2. a kind of chicken farm remote temperature monitoring system based on source follower according to claim 1, it is special
Levy and be, described source follower by field effect transistor mos, audion vt3, positive pole is connected with the grid of field effect transistor mos,
The electric capacity c12 that negative pole is connected with high-pass filtering circuit, one end is connected with the positive pole of electric capacity c12, the electricity of another termination power
Resistance r8, the electric capacity c13 that negative pole is connected with the positive pole of electric capacity c12, positive pole is grounded after resistance r9, negative pole and field effect transistor mos
Source electrode be connected, electric capacity c14 that positive pole is connected with the colelctor electrode of audion vt3, the emitter stage phase of negative pole and audion vt3
Connect, the electric capacity c15 of plus earth, p pole is connected with the positive pole of electric capacity c15, n pole sequentially after resistance r12 and resistance r10 and
The Zener diode d4 that the base stage of audion vt3 is connected, n pole is connected with the drain electrode of field effect transistor mos, p pole is through resistance r11
The diode d5 being connected with the junction point of resistance r10 and resistance r12 afterwards, and p pole be connected with the positive pole of electric capacity c14, n pole
The diode d3 composition being connected with the positive pole of amplifier p3.
3. a kind of chicken farm remote temperature monitoring system based on source follower according to claim 2, it is special
Levy and be, by amplifier p2, positive pole is connected with the positive pole of amplifier p2 described high-pass filtering circuit, negative pole and amplifier p2
The electric capacity c4 that outfan is connected, negative pole is connected with the negative pole of amplifier p2, positive pole is connected with the outfan of amplifier p2
Electric capacity c5, one end is connected with the positive pole of amplifier p2, the resistance r3 of other end ground connection, and negative pole and amplifier p2 are just
The electric capacity c3 composition that pole is connected, positive pole is connected with low-pass filter circuit；The outfan of described amplifier p2 is with electric capacity c12's
Negative pole is connected.
4. a kind of chicken farm remote temperature monitoring system based on source follower according to claim 3, it is special
Levy and be, described low-pass filter circuit is connected with the positive pole of amplifier p1 by amplifier p1, audion vt1, n pole after resistance r1
Connect, diode d1 that p pole is connected with analog-to-digital conversion module, positive pole is connected with the n pole of diode d1, negative pole and amplifier p1
The electric capacity c1 that is connected of outfan, be serially connected in the resistance r2 between the negative pole of amplifier p1 and outfan, and positive pole with put
The electric capacity c2 composition that the negative pole of big device p1 is connected, negative pole is connected with the base stage of audion vt1；The collection of described audion vt1
Electrode is connected with the outfan of amplifier p1, grounded emitter；The outfan of described amplifier p1 and the positive pole phase of electric capacity c3
Connect.
5. a kind of chicken farm remote temperature monitoring system based on source follower according to claim 4, it is special
Levy and be, described amplifier p1～p5 is tl061 type amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610885859.4A CN106353005A (en) | 2016-10-11 | 2016-10-11 | Chicken farm remote temperature monitoring system based on source electrode follower circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610885859.4A CN106353005A (en) | 2016-10-11 | 2016-10-11 | Chicken farm remote temperature monitoring system based on source electrode follower circuit |
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| Publication Number | Publication Date |
|---|---|
| CN106353005A true CN106353005A (en) | 2017-01-25 |
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ID=57866436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610885859.4A Pending CN106353005A (en) | 2016-10-11 | 2016-10-11 | Chicken farm remote temperature monitoring system based on source electrode follower circuit |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101904088A (en) * | 2007-12-18 | 2010-12-01 | 高通股份有限公司 | Amplifier with dynamic bias |
| CN201853116U (en) * | 2010-08-25 | 2011-06-01 | 河北农业大学 | Automatic monitoring system for henhouse environment |
| CN203385430U (en) * | 2013-07-12 | 2014-01-08 | 精量电子（深圳）有限公司 | Sensing circuit and sensor |
| CN203502819U (en) * | 2013-10-26 | 2014-03-26 | 付廷斌 | Hen house control system |
| CN105897264A (en) * | 2016-05-11 | 2016-08-24 | 英特格灵芯片(天津)有限公司 | Quick on/ off source follower |
-
2016
- 2016-10-11 CN CN201610885859.4A patent/CN106353005A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101904088A (en) * | 2007-12-18 | 2010-12-01 | 高通股份有限公司 | Amplifier with dynamic bias |
| CN201853116U (en) * | 2010-08-25 | 2011-06-01 | 河北农业大学 | Automatic monitoring system for henhouse environment |
| CN203385430U (en) * | 2013-07-12 | 2014-01-08 | 精量电子（深圳）有限公司 | Sensing circuit and sensor |
| CN203502819U (en) * | 2013-10-26 | 2014-03-26 | 付廷斌 | Hen house control system |
| CN105897264A (en) * | 2016-05-11 | 2016-08-24 | 英特格灵芯片(天津)有限公司 | Quick on/ off source follower |
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