CN207571525U - A kind of agricultural environment parameter acquisition communicating circuit - Google Patents
A kind of agricultural environment parameter acquisition communicating circuit Download PDFInfo
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- CN207571525U CN207571525U CN201721816553.XU CN201721816553U CN207571525U CN 207571525 U CN207571525 U CN 207571525U CN 201721816553 U CN201721816553 U CN 201721816553U CN 207571525 U CN207571525 U CN 207571525U
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Abstract
The utility model discloses a kind of agricultural environment parameter acquisition communicating circuits, including sensor assembly, sensor interface module, MCU module, Zigbee module, power management module, the sensor assembly includes aerial temperature and humidity sensor, intensity of illumination sensor, air carbon dioxide sensor, soil temperature sensor, soil humidity sensor and P in soil H sensors, aerial temperature and humidity sensor, intensity of illumination sensor, air carbon dioxide sensor, soil temperature sensor, soil humidity sensor and P in soil H sensors are electrically connected with sensor interface module, sensor interface module and Zigbee module are electrically connected with MCU module, power management module provides operating voltage for entire circuit.Compared with prior art, the beneficial effects of the utility model be not only more further reduce power consumption, no light condition can be kept to reach 1 year lower cruise duration, and be provided with general quantity sunlight irradiation under, can realize and never power off.
Description
Technical field
The present invention relates to wisdom agricultural technology field, more particularly to a kind of agricultural environment parameter acquisition communicating circuit.
Background technology
In agricultural production scene, farm management person usually requires preferably to grasp the environmental parameter of each planting area, example
Such as aerial temperature and humidity, soil temperature and humidity, illumination, CO2 the concentration factor closely related with plant growth.Nowadays, in intelligence
The automatic management scheme for having emerged in large numbers some set environment parameter acquisitions and equipment control among the field of agricultural also slowly.
Because there is the problem of power supply is difficult in most agriculture production environments, wisdom agricultural solution that generally can be in the market
Certainly scheme would generally take two kinds.One kind be in the range of entire farm be laid with supply network be powered, so after ability
All environmental parameters and equipment in enough acquisitions and control farm.But the electric power system of long-distance large-range can cause manpower to provide
Significant wastage in terms of source, material cost for agricultural production, can cause sharply increasing for planting cost, right
Its consumption can not be born for most of agricultural producers.Another method is typically the sensor acquisition side using low-power consumption
Method avoids being laid with supply lines in farm, to save manpower and wire rod using battery powered method.But this method is same
Sample have defect because the control circuit of sensor and communicating circuit when reducing power consumption with certain limit, and pair and
For diversified parameter sensors, power consumption requirements are also diversified.On the whole, entire environmental parameter acquisition is set
It is standby to accomplish extremely low power consumption demand, so using battery powered scheme it is difficult to ensure that reaching the cruise duration of equipment 1 year
More than, the time that the producer is kept for every half a year either shorter is required to carry out frequent removable parts battery to ensure under normal conditions
Power supply.And since the particularity of agriculture production environment such as waters, apply fertilizer, spray production action or precipitation, frost, mist etc.
Changes in weather may all influence equipment work, sensing acquisition equipment is usually required with higher leakproofness, in this way to replacing
Great obstacle is caused for battery.
The mode of agricultural automation scheme early application wire communication, 485 bus of generally use or CAN bus standard arrangement
Communication network is fresh and what is be clear to is that this mode has the shortcomings that difficult wiring, efficiency be low, lost labor.It has gushed till now
Show the wireless collection scheme much based on the general free frequency range of 433M or 2.4G and apply to wisdom agricultural, but be constrained to work(
The limitation of consumption and cost, existing wireless telecommunications scheme is difficult that transmission power is made big, on a large scale (can so as to set up
Suitable for the farm of large area) communication network.
Utility model content
In order to overcome the above-mentioned deficiencies of the prior art, the present invention provides a kind of agricultural environment parameter acquisition communicating circuit,
No light condition can be kept to reach 1 year lower cruise duration, in conjunction with solar recharging, can realize and never power off substantially.And expand
The big area coverage of collection communication network, can realize the environmental parameter acquisition on most large area farms.
Technical solution is used by the utility model：A kind of agricultural environment parameter acquisition communicating circuit, including sensor
Module, sensor interface module, MCU module, Zigbee module, power management module, the sensor assembly include Air Temperature
Humidity sensor, intensity of illumination sensor, air carbon dioxide sensor, soil temperature sensor, soil humidity sensor and
P in soil H sensors, aerial temperature and humidity sensor, intensity of illumination sensor, air carbon dioxide sensor, soil moisture sensing
Device, soil humidity sensor and P in soil H sensors are electrically connected with sensor interface module, sensor interface module and
Zigbee module is electrically connected with MCU module, and power management module provides operating voltage for entire circuit.
Further, it is defeated to include battery, solar energy electroplax, solar energy input socket P3, battery for the power management module
Enter socket P4, charging management chip U1, power management chip U3, voltage conversion chip VR1, metal-oxide-semiconductor Q2-Q4, diode D7, hair
Optical diode D1-D2, resistance R23-R29, resistance R19-R20, resistance R2-R3, resistance R15, nonpolar capacitance C7, C10, C15,
C3-C5, C18, polar capacitor C2,
Solar energy electroplax is connected with solar energy input socket P3, one end of solar energy input socket P3 and the source of metal-oxide-semiconductor Q2
Extremely it is connected, the anode that the grid of metal-oxide-semiconductor Q2 and one end of resistance R23 are connected afterwards with diode D7 is connected, the cathode of diode D7,
Power input of the one end of the draining of metal-oxide-semiconductor Q2, one end of nonpolar capacitance C7 and resistance R2 with charging management chip U1
Mouth is connected, and the other end of the other end of resistance R23 and nonpolar capacitance C7 are grounded；The other end of resistance R2 respectively with shine two
The anode of pole pipe D1 is connected with the anode of light emitting diode D2, and the cathode of light emitting diode D1 and one end of resistance R25 are with filling
The charging of the open-drain output of electric managing chip U1 terminates state instruction end and is connected, the cathode and resistance of light emitting diode D2
Charged state indication end of the one end of R26 with the output of the open-drain of charging management chip U1 is connected, the other end of resistance R25
It is grounded with the other end of resistance R26；
Battery is connected with battery input socket P4, one end of battery input socket P4 respectively with one end of resistance R24, resistance
One end of R15, nonpolar capacitance C10 the positive grade of battery of one end and charging management chip U1 be connected, the other end of resistance R24
It is connected with the battery voltage detection input terminal of charging management chip U1, the other end and charging management chip of nonpolar capacitance C10
The battery temperature detection input of U1 is grounded, the constant-current charge electric current setting of one end of resistance R3 and charging management chip U1 and
Charging current monitoring side is connected, the other end of resistance R3 ground connection, the other end of resistance R15 respectively with one end of resistance R19 and electricity
One end of resistance R20 is connected, and the other end of resistance R19 is connected with one end of capacitance C15, the other end of resistance R20 and capacitance C15's
The other end is grounded；
One end of nonpolar capacitance C18, one end of resistance R28, the power input of power management chip U3, resistance R27
One end and one end for being connected afterwards with battery input socket P4 of source electrode of metal-oxide-semiconductor Q3 be connected, the other end and resistance of resistance R28
One end of R29 is connected and is connected afterwards with the battery voltage detection input terminal of power management chip U3, the other end and MOS of resistance R27
The drain electrode that the grid of pipe Q3 is connected afterwards with metal-oxide-semiconductor Q4 is connected, and the grid of metal-oxide-semiconductor Q4 is examined with the cell voltage of power management chip U3
Output terminal end is surveyed to be connected, the other end of nonpolar capacitance C18, the other end of resistance R28, power management chip U3 ground terminal with
And the source grounding of metal-oxide-semiconductor Q4；The drain electrode of metal-oxide-semiconductor Q3 is as VCC；
The power input of the anode of polar capacitor C2, one end of nonpolar capacitance C4 and voltage conversion chip VR1 is equal
It is connected with VCC, one end of power output end the output 3.3V, nonpolar capacitance C3 of voltage conversion chip VR1 and nonpolar capacitance
Power output end of the one end of C5 with voltage conversion chip VR1 is connected, the cathode of polar capacitor C2, nonpolar capacitance C4 it is another
One end, the grounding ports of voltage conversion chip VR1, the other end of nonpolar capacitance C3 and the other end of nonpolarity capacitance C5 connect
Ground.
Further, the MCU module includes processor chips U4, crystal oscillator Y1, tunnel diode DS, button S1, resistance
R10-R11, resistance R8, resistance R13, nonpolar capacitance C12, nonpolar capacitance C14, nonpolar capacitance C8, nonpolar capacitance
One end of C16-C17, one end of nonpolar capacitance C20, nonpolar capacitance C12 and nonpolar capacitance C14 are grounded, nonpolarity electricity
The other end of appearance C12 is connected with one end of crystal oscillator Y1 is followed by the input end of clock mouth of processor chips U4, nonpolar capacitance C14's
The other end is connected with the other end of crystal oscillator Y1 is followed by the output terminal of clock mouth of processor chips U4, a termination 3.3V of resistance R10,
The other end of resistance R10 is connected with one end of nonpolar capacitance C17 is followed by the reseting port of processor chips U4, nonpolar capacitance
Electricity of the one end of the other end ground connection of C17, one end of nonpolar capacitance C20 and nonpolar capacitance C16 with processor chips U4
Source input positive terminal mouth is connected, the other end and processor chips U4 of the other end of nonpolar capacitance C20 and nonpolar capacitance C16
The positive port of power input meet 3.3V；
One end of button S1 and one end of nonpolar capacitance C8 meet 3.3V, the other end of button S1, nonpolar capacitance C8
The other end, resistance R13 anode of the one end with tunnel diode DS be connected, the other end ground connection of resistance R13, two pole of tunnel
The cathode of pipe DS is connected with the I/O ports of processor chips U4, and one end of resistance R8 and one end of resistance R11 meet 3.3V, electricity
The other end of resistance R8 is connected with the I/O ports of processor chips U4, the other end of resistance R11 and the I/O ends of processor chips U4
Mouth is connected, and the power input port of processor chips U4 meets 3.3V.
Further, the Zigbee module includes wireless chip U2, polar capacitor C11, nonpolar capacitance C8-C9, electricity
Hinder R22, resistance R5, resistance R9, the anode of light emitting diode D5, polar capacitor C11, one end of nonpolar capacitance C8 and wireless
The power end of chip U2 meets 3.3V, the cathode of polar capacitor C11, the other end of nonpolar capacitance C8 and wireless chip U2
Ground terminal is grounded；One end of resistance R22 is connected with the reseting port of wireless chip U2, one end of resistance R22, resistance R15
One end and one end of nonpolar capacitance C9 intersect at a point, and another termination 3.3V of resistance R5, nonpolar capacitance C9's is another
End ground connection；The anode of light emitting diode D5 is connected with the I/O ports of wireless chip U2, cathode and the resistance R9 of light emitting diode D5
One end be connected, the other end of resistance R9 ground connection, the sending port of wireless chip U2 and the receiving port phase of processor chips U4
Even, the receiving port of wireless chip U2 is connected with the sending port of processor chips U4, the output port of wireless chip U2 and place
The input port of reason device chip U4 is connected, and the input port of wireless chip U2 is connected with the output port of processor chips U4.
Further, the sensor interface module includes resistance R14, resistance R16-R18, resistance R21, nonpolar capacitance
C19, metal-oxide-semiconductor Q1, IIC socket P5；One end of resistance R14 is connected with the other end of resistance R8, the other end and IIC of resistance R14
The data of socket P5/serial ports sending port is connected, and one end of resistance R16 is connected with the other end of resistance R8, and resistance R16's is another
End is connected with clock/serial ports receiving port of IIC sockets P5, one end of resistance R17 and the sending port phase of processor chips U4
Even, the other end of resistance R17 is connected with data/serial ports sending port of IIC sockets P5, one end and the processor core of resistance R18
The receiving port of piece U4 is connected, and the other end of resistance R18 is connected with clock/serial ports receiving port of IIC sockets P5；Resistance R21
One end and metal-oxide-semiconductor Q1 source grounding, the other end of resistance R21 and the grid of metal-oxide-semiconductor Q1 are with processor chips U4's
I/O ports are connected, and the drain electrode of metal-oxide-semiconductor Q1 is connected with the Single port of IIC sockets P5, and the power port of IIC sockets P5 meets VCC, IIC
Another power port of socket P5 connects 3.3V, one end ground connection of capacitance C19, the other end of capacitance C19 and the voltage of IIC sockets P5
Detection port is connected with the voltage detecting port of processor chips U4；
One end of aerial temperature and humidity sensor is connected with clock/serial ports receiving port of IIC sockets P5, the other end and IIC
The data of socket P5/serial ports sending port is connected；
Intensity of illumination sensor is connected with clock/serial ports receiving port of IIC sockets P5, and the other end is with IIC sockets P5's
Data/serial ports sending port is connected；
One end of air carbon dioxide sensor is connected with one end of resistance R17, one end phase of the other end and resistance R18
Even；
Soil temperature sensor is connected with intensity of illumination sensor with clock/serial ports receiving port of IIC sockets P5；
The voltage detecting port of soil humidity sensor and P in soil H sensors with IIC sockets P5 is connected.
Compared with prior art, the beneficial effects of the invention are as follows not only more further reduce power consumption, can keep unglazed
State reaches 1 year lower cruise duration, and under the sunlight irradiation for being provided with general quantity, can realize and never power off.Pass through
The control device for coordinating non-low-power consumption is router, has successfully set up the wireless communication networks of multi-hop bridge joint, has greatly expanded
Network coverage area can realize that (being increased to maximum transmission power with reference to low-power consumption scheme can for the farms of most large area
Realize 1 kilometer of communication distance, maximum can ensure the area coverage that 10 grades of bridge joints are expanded to 10 kilometers).
Description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the circuit diagram of the power management module of the utility model；
Fig. 3 is the circuit diagram of the MCU module of the utility model；
Fig. 4 is the circuit diagram of the Zigbee module of the utility model；
Fig. 5 is the circuit diagram of the sensor interface module of the utility model.
Specific embodiment
The utility model is described further below in conjunction with the accompanying drawings.
As shown in Figure 1, a kind of agricultural environment parameter acquisition communicating circuit provided by the utility model, including sensor die
Block, sensor interface module, MCU module, Zigbee module, power management module, it is warm and humid that the sensor assembly includes air
Spend sensor, intensity of illumination sensor, air carbon dioxide sensor, soil temperature sensor, soil humidity sensor and soil
Earth PH sensor, aerial temperature and humidity sensor, intensity of illumination sensor, air carbon dioxide sensor, soil temperature sensor,
Soil humidity sensor and P in soil H sensors are electrically connected with sensor interface module, sensor interface module and Zigbee moulds
Block is electrically connected with MCU module, and power management module provides operating voltage for entire circuit.Sensor assembly is by each sensor
It collects agricultural environment parameter and MCU module is passed to by sensor interface, according to the existing algorithm inside MCU, obtain air
Temperature and humidity value, illumination intensity value, air carbon dioxide values, soil moisture value, soil moisture value and P in soil H values, and pass through
These environmental parameters are uploaded to sensing chamber's (computer with radio function can be used) by Zigbee module, by the agriculture of the present invention
Industry environmental parameter acquisition communicating circuit is placed on different positions, the environmental parameter of different location is can detect, by being aggregated into inspection
Survey room, it is possible to realize the acquisition of the environmental parameter of bulk portion.
In order to further reduce power consumption, the utility model devises power management module, when sensor device enters sleep
During state, the power supply of sensor is blocked, is minimized power consumption at this time.Environmental parameter is proceeded by after sensor wake-up to adopt
During collection, opening probe power makes working sensor.Sensor output numerical value is waited for stablize, then the processing that gets parms uploads.
As shown in Fig. 2, the power management module is defeated including battery, solar energy electroplax, solar energy input socket P3, battery
Enter socket P4, charging management chip U1, power management chip U3, voltage conversion chip VR1, metal-oxide-semiconductor Q2-Q4, diode D7, hair
Optical diode D1-D2, resistance R23-R29, resistance R19-R20, resistance R2-R3, resistance R15, nonpolar capacitance C7, C10, C15,
C3-C5, C18, polar capacitor C2, solar energy electroplax are connected with solar energy input socket P3, one end of solar energy input socket P3
It is connected with the source electrode of metal-oxide-semiconductor Q2, the anode that the grid of metal-oxide-semiconductor Q2 and one end of resistance R23 are connected afterwards with diode D7 is connected, and two
The cathode of pole pipe D7, the draining of metal-oxide-semiconductor Q2, one end of nonpolar capacitance C7 and resistance R2 one end with charging management chip U1
Power input port be connected, the other end of the other end of resistance R23 and nonpolar capacitance C7 are grounded；The other end of resistance R2
The anode with the anode of light emitting diode D1 and light emitting diode D2 is connected respectively, the cathode of light emitting diode D1 and resistance R25
Charging of the one end with the output of the open-drain of charging management chip U1 terminate state instruction port and be connected, light emitting diode D2
Cathode and one end of resistance R26 be connected with the CHRG ports of charging management chip U1, the other end and resistance of resistance R25
The other end of R26 is grounded；Battery is connected with battery input socket P4, one end of battery input socket P4 respectively with resistance R24
One end, resistance R15 one end, one end of nonpolar capacitance C10 and the battery output plus terminal mouth phase of charging management chip U1
Even, the other end of resistance R24 is connected with the FB ports of charging management chip U1, the other end and charging valve of nonpolar capacitance C10
Reason chip U battery temperature detection inputs are grounded, and one end of resistance R3 is connected with the ISET ports of charging management chip U1, electricity
The other end ground connection of R3 is hindered, the one end of the other end of resistance R15 respectively with one end of resistance R19 and resistance R20 is connected, resistance
The other end of R19 is connected with one end of capacitance C15, and the other end of resistance R20 and the other end of capacitance C15 are grounded；Nonpolarity
One end of capacitance C18, one end of resistance R28, the power input of power management chip U3, one end of resistance R27 and metal-oxide-semiconductor Q3
One end for being connected afterwards with battery input socket P4 of source electrode be connected, the other end of resistance R28 and one end of resistance R29 be connected after with
The battery voltage detection input terminal of power management chip U3 is connected, the other end of resistance R27 and the grid of metal-oxide-semiconductor Q3 be connected after with
The drain electrode of metal-oxide-semiconductor Q4 is connected, and the grid of metal-oxide-semiconductor Q4 is connected with the battery voltage detection output terminal of power management chip U3, non-pole
The other end of property capacitance C18, the other end of resistance R28, the ground terminal of power management chip U3 and metal-oxide-semiconductor Q4 source electrode connect
Ground；The drain electrode of metal-oxide-semiconductor Q3 is as VCC；The anode of polar capacitor C2, one end of nonpolar capacitance C4 and voltage conversion chip
The power input of VR1 is connected with VCC, the power output end output 3.3V of voltage conversion chip VR1, nonpolar capacitance C3's
The power output end of one end and one end of nonpolar capacitance C5 with voltage conversion chip VR1 is connected, the cathode of polar capacitor C2,
The other end of nonpolar capacitance C4, the grounding ports of voltage conversion chip VR1, the other end of nonpolar capacitance C3 and nonpolarity electricity
The other end for holding C5 is grounded.Chip VR1 and its peripheral components are converted by voltage, by lithium battery output voltage stabilization to work
Voltage 3.3V, for whole system steady operation.Charging management chip U1 uses CN3063, power management chip U3 to use CN301,
Voltage conversion chip VR1 uses MCP1700.Relatively low in view of this scheme power consumption, it is 50mm* that solar energy electroplax, which selects specification,
The monocrystalline silicon of 50mm, and the lithium battery power supply for using 1500MAH to extend cruise duration as possible.Using CN3063 Charge Management cores
Piece is core, builds charge management circuit.
As shown in figure 3, the MCU module includes processor chips U4, crystal oscillator Y1, tunnel diode DS, button S1, resistance
R10-R11, resistance R8, resistance R13, nonpolar capacitance C12, nonpolar capacitance C14, nonpolar capacitance C8, nonpolar capacitance
One end of C16-C17, one end of nonpolar capacitance C20, nonpolar capacitance C12 and nonpolar capacitance C14 are grounded, nonpolarity electricity
The other end of appearance C12 is connected with one end of crystal oscillator Y1 is followed by the input end of clock mouth of processor chips U4, nonpolar capacitance C14's
The other end is connected with the other end of crystal oscillator Y1 is followed by the output terminal of clock mouth of processor chips U4, a termination 3.3V of resistance R10,
The other end of resistance R10 is connected with one end of nonpolar capacitance C17 is followed by the reseting port of processor chips U4, nonpolar capacitance
Electricity of the one end of the other end ground connection of C17, one end of nonpolar capacitance C20 and nonpolar capacitance C16 with processor chips U4
Source input port is connected, the other end and processor chips U4 of the other end of nonpolar capacitance C20 and nonpolar capacitance C16
Power input port meets 3.3V；One end of button S1 and one end of nonpolar capacitance C8 meet 3.3V, the other end of button S1,
The anode of the other end of nonpolar capacitance C8, one end of resistance R13 with tunnel diode DS is connected, the other end of resistance R13
Ground connection, the cathode of tunnel diode DS are connected with the PA0 ports of processor chips U4, one end of resistance R8 and the one of resistance R11
End meets 3.3V, and the other end of resistance R8 is connected with the PB7 ports of processor chips U4, the other end and processor of resistance R11
The PB6 ports of chip U4 are connected, and the power input port of processor chips U4 meets 3.3V.
The present invention is after low-power consumption, function, MCU resources etc. is considered, and final choice STM32F103C8T6 is as master
Control chip.In order to be preferably minimized MCU power consumptions, the standby mode least in power-consuming that is provided using STM32 closes master clock, interior
Core and peripheral hardware solely stay separate internal crystal oscillator to generate alarm clock signal and reawake MCU.
As shown in figure 4, wireless chip U2, polar capacitor C11, nonpolar capacitance C8-C9, resistance R22, resistance R5, resistance
R9, light emitting diode D5, the power end of the anode of polar capacitor C11, one end of nonpolar capacitance C8 and wireless chip U2 are equal
3.3V is met, the ground terminal of the cathode of polar capacitor C11, the other end of nonpolar capacitance C8 and wireless chip U2 is grounded；Electricity
One end of resistance R22 is connected with the reseting port of wireless chip U2, one end of resistance R22, one end of resistance R15 and nonpolarity electricity
The one end for holding C9 intersects at a point, the other end ground connection of another termination 3.3V of resistance R5, nonpolar capacitance C9；Light emitting diode
The anode of D5 is connected with the I/O ports of wireless chip U2, and the cathode of light emitting diode D5 is connected with one end of resistance R9, resistance R9
Other end ground connection, the sending port of wireless chip U2 is connected with the receiving port of processor chips U4, and wireless chip U2's connects
Receiving end mouth is connected with the sending port of processor chips U4, the output port of wireless chip U2 and the input terminal of processor chips U4
Mouth is connected, and the input port of wireless chip U2 is connected with the output port of processor chips U4.The wireless chip U2 is used
ZA2530A, but not limited to this.The acquisition for realizing wireless data by wireless chip is transmitted.
As shown in figure 5, the sensor interface module includes resistance R14, resistance R16-R18, resistance R21, nonpolarity electricity
Hold C19, metal-oxide-semiconductor Q1, IIC socket P5；One end of resistance R14 is connected with the other end of resistance R8, the other end of resistance R14 with
The data of IIC sockets P5/serial ports sending port is connected, and one end of resistance R16 is connected with the other end of resistance R8, resistance R16's
The other end is connected with clock/serial ports receiving port of IIC sockets P5, one end of resistance R17 and the transmitting terminal of processor chips U4
Mouth is connected, and the other end of resistance R17 is connected with data/serial ports sending port of IIC sockets P5, one end of resistance R18 and processing
The receiving port of device chip U4 is connected, and the other end of resistance R18 is connected with clock/serial ports receiving port of IIC sockets P5；Resistance
One end of R21 and the source grounding of metal-oxide-semiconductor Q1, the other end of resistance R21 and the grid of metal-oxide-semiconductor Q1 with processor chips U4
PB0 ports be connected, the drain electrode of metal-oxide-semiconductor Q1 is connected with the Single port of IIC sockets P5, and the power port of IIC sockets P5 meets VCC,
Another power port of IIC sockets P5 meets 3.3V, one end ground connection of capacitance C19, the other end of capacitance C19 and IIC sockets P5's
Voltage detecting port is connected with the voltage detecting port of processor chips U4；It is inserted with IIC one end of aerial temperature and humidity sensor
Clock/serial ports receiving port of seat P5 is connected, and the other end is connected with data/serial ports sending port of IIC sockets P5；Intensity of illumination
Sensor is connected with clock/serial ports receiving port of IIC sockets P5, data/serial ports sending port of the other end and IIC sockets P5
It is connected；One end of air carbon dioxide sensor is connected with one end of resistance R17, and the other end is connected with one end of resistance R18；Soil
Earth temperature sensor is connected with intensity of illumination sensor with clock/serial ports receiving port of IIC sockets P5；Soil humidity sensor
It is connected with voltage detecting port of the P in soil H sensors with IIC sockets P5；The corresponding output voltage of MCU acquisition sensors, passes through
It is wet that existing algorithm calculates current aerial temperature and humidity value, illumination intensity value, air carbon dioxide values, soil moisture value, soil
Angle value and P in soil H values.
Said program makes each sensor achieve the effect that low-power consumption to the greatest extent, and equipment is after sleep is entered
Average current has reached 7uA or so.The sleeping time of setting is longer, and the low-power consumption effect reached is better, when setting acquisition time
Between when being divided into 1 minute, the cruise duration of sensor device can reach 1 year or more.It is never powered off to realize collecting device
Mentality of designing specially manages circuit for power consumption control and adds function of solar charging.
Claims (5)
1. a kind of agricultural environment parameter acquisition communicating circuit, which is characterized in that including sensor assembly, sensor interface module,
MCU module, Zigbee module, power management module, the sensor assembly includes aerial temperature and humidity sensor, intensity of illumination passes
Sensor, air carbon dioxide sensor, soil temperature sensor, soil humidity sensor and P in soil H sensors, air are warm and humid
Spend sensor, intensity of illumination sensor, air carbon dioxide sensor, soil temperature sensor, soil humidity sensor and soil
Earth PH sensor is electrically connected with sensor interface module, and sensor interface module and Zigbee module are electrically connected with MCU module
It connects, power management module provides operating voltage for entire circuit.
A kind of 2. agricultural environment parameter acquisition communicating circuit according to claim 1, which is characterized in that the power management
Module includes battery, solar energy electroplax, solar energy input socket P3, battery input socket P4, charging management chip U1, power supply pipe
Manage chip U3, voltage conversion chip VR1, metal-oxide-semiconductor Q2-Q4, diode D7, light emitting diode D1-D2, resistance R23-R29, resistance
R19-R20, resistance R2-R3, resistance R15, nonpolar capacitance C7, C10, C15, C3-C5, C18, polar capacitor C2,
Solar energy electroplax is connected with solar energy input socket P3, one end of solar energy input socket P3 and the source electrode phase of metal-oxide-semiconductor Q2
Even, the anode that the grid of metal-oxide-semiconductor Q2 and one end of resistance R23 are connected afterwards with diode D7 is connected, cathode, the MOS of diode D7
One end of the draining of pipe Q2, one end of nonpolar capacitance C7 and resistance R2 with the power input port phase of charging management chip U1
Even, the other end of the other end of resistance R23 and nonpolar capacitance C7 are grounded；The other end of resistance R2 respectively with light emitting diode
The anode of D1 is connected with the anode of light emitting diode D2, and the cathode of light emitting diode D1 and one end of resistance R25 are and charging valve
The charging of the open-drain output of reason chip U1 terminates state instruction end and is connected, the cathode of light emitting diode D2 and resistance R26's
Charged state indication end of the one end with the output of the open-drain of charging management chip U1 is connected, the other end and electricity of resistance R25
The other end of resistance R26 is grounded；
Battery is connected with battery input socket P4, one end of battery input socket P4 respectively with one end of resistance R24, resistance R15
One end, nonpolar capacitance C10 the positive grade of battery of one end and charging management chip U1 be connected, the other end of resistance R24 with
The battery voltage detection input terminal of charging management chip U1 is connected, the other end of nonpolar capacitance C10 and charging management chip U1
Battery temperature detection input be grounded, the constant-current charge electric current setting of one end of resistance R3 and charging management chip U1 and fill
Electric current monitoring end is connected, the other end of resistance R3 ground connection, the other end of resistance R15 respectively with one end of resistance R19 and resistance
One end of R20 is connected, and the other end of resistance R19 is connected with one end of capacitance C15, and the other end of resistance R20 and capacitance C15's is another
One end is grounded；
One end of nonpolar capacitance C18, one end of resistance R28, the power input of power management chip U3, resistance R27 one
End and one end for being connected afterwards with battery input socket P4 of source electrode of metal-oxide-semiconductor Q3 are connected, the other end of resistance R28 and resistance R29's
One end is connected and is connected afterwards with the battery voltage detection input terminal of power management chip U3, the other end of resistance R27 and metal-oxide-semiconductor Q3's
The drain electrode that grid is connected afterwards with metal-oxide-semiconductor Q4 is connected, and the grid of metal-oxide-semiconductor Q4 is exported with the battery voltage detection of power management chip U3
End end be connected, the other end of nonpolar capacitance C18, the other end of resistance R28, power management chip U3 ground terminal and MOS
The source grounding of pipe Q4；The drain electrode of metal-oxide-semiconductor Q3 is as VCC；
The power input of the anode of polar capacitor C2, one end of nonpolar capacitance C4 and voltage conversion chip VR1 is and VCC
It is connected, one end of power output end the output 3.3V, nonpolar capacitance C3 of voltage conversion chip VR1 and the one of nonpolar capacitance C5
Power output end of the end with voltage conversion chip VR1 is connected, the cathode of polar capacitor C2, nonpolar capacitance C4 the other end,
The other end of the grounding ports of voltage conversion chip VR1, the other end of nonpolar capacitance C3 and nonpolar capacitance C5 is grounded.
A kind of 3. agricultural environment parameter acquisition communicating circuit according to claim 2, which is characterized in that the MCU module
Including processor chips U4, crystal oscillator Y1, tunnel diode DS, button S1, resistance R10-R11, resistance R8, resistance R13, nonpolarity
Capacitance C12, nonpolar capacitance C14, nonpolar capacitance C8, nonpolar capacitance C16-C17, nonpolar capacitance C20, nonpolar capacitance
One end of C12 and one end of nonpolar capacitance C14 are grounded, and the other end of nonpolar capacitance C12 is connected with one end of crystal oscillator Y1
The input end of clock mouth of processor chips U4 is followed by, the other end of nonpolar capacitance C14 is connected with the other end of crystal oscillator Y1 to be followed by
The output terminal of clock mouth of processor chips U4, the other end and nonpolar capacitance C17 of termination a 3.3V, resistance R10 of resistance R10
One end be connected and be followed by the reseting port of processor chips U4, the other end ground connection of nonpolar capacitance C17, nonpolar capacitance C20
One end and one end of nonpolar capacitance C16 be connected with the positive port of the power input of processor chips U4, nonpolar capacitance C20
The other end and the positive port of power input of the other end and processor chips U4 of nonpolar capacitance C16 meet 3.3V；
One end of button S1 and one end of nonpolar capacitance C8 meet 3.3V, the other end of button S1, nonpolar capacitance C8 it is another
One end, resistance R13 anode of the one end with tunnel diode DS be connected, the other end ground connection of resistance R13, tunnel diode DS
Cathode be connected with the I/O ports of processor chips U4, one end of resistance R8 and one end of resistance R11 meet 3.3V, resistance R8
The other end be connected with the I/O ports of processor chips U4, the other end of resistance R11 and the I/O ports phase of processor chips U4
Even, the power input port of processor chips U4 meets 3.3V.
A kind of 4. agricultural environment parameter acquisition communicating circuit according to claim 3, which is characterized in that the Zigbee moulds
Block includes wireless chip U2, polar capacitor C11, nonpolar capacitance C8-C9, resistance R22, resistance R5, resistance R9, light emitting diode
The power end of the anode of D5, polar capacitor C11, one end of nonpolar capacitance C8 and wireless chip U2 connects 3.3V, polarity electricity
The cathode, the other end of nonpolar capacitance C8 and the ground terminal of wireless chip U2 for holding C11 are grounded；One end of resistance R22 with
The reseting port of wireless chip U2 is connected, one end phase of one end of resistance R22, one end of resistance R15 and nonpolar capacitance C9
It meets at a bit, the other end ground connection of another termination 3.3V of resistance R5, nonpolar capacitance C9；The anode and nothing of light emitting diode D5
The I/O ports of core piece U2 are connected, and the cathode of light emitting diode D5 is connected with one end of resistance R9, another termination of resistance R9
Ground, the sending port of wireless chip U2 are connected with the receiving port of processor chips U4, the receiving port of wireless chip U2 and place
The sending port of reason device chip U4 is connected, and the output port of wireless chip U2 is connected with the input port of processor chips U4, nothing
The input port of core piece U2 is connected with the output port of processor chips U4.
5. a kind of agricultural environment parameter acquisition communicating circuit according to claim 4, which is characterized in that the sensor connects
Mouth mold block includes resistance R14, resistance R16-R18, resistance R21, nonpolar capacitance C19, metal-oxide-semiconductor Q1, IIC socket P5；Resistance R14
One end be connected with the other end of resistance R8, the other end of resistance R14 is connected with data/serial ports sending port of IIC sockets P5,
One end of resistance R16 is connected with the other end of resistance R8, the other end of resistance R16 and clock/serial ports receiving terminal of IIC sockets P5
Mouth is connected, and one end of resistance R17 is connected with the sending port of processor chips U4, and the other end of resistance R17 is with IIC sockets P5's
Data/serial ports sending port is connected, and one end of resistance R18 is connected with the receiving port of processor chips U4, and resistance R18's is another
End is connected with clock/serial ports receiving port of IIC sockets P5；One end of resistance R21 and the source grounding of metal-oxide-semiconductor Q1, resistance
The other end of R21 and the grid of metal-oxide-semiconductor Q1 are connected with the I/O ports of processor chips U4, and drain electrode and the IIC of metal-oxide-semiconductor Q1 are inserted
The Single port of seat P5 is connected, and the power port of IIC sockets P5 meets VCC, and another power port of IIC sockets P5 connects 3.3V, capacitance
One end ground connection of C19, the voltage of the other end of capacitance C19 and the voltage detecting port of IIC sockets P5 with processor chips U4
Detection port is connected；
One end of aerial temperature and humidity sensor is connected with clock/serial ports receiving port of IIC sockets P5, the other end and IIC sockets
The data of P5/serial ports sending port is connected；
Intensity of illumination sensor is connected with clock/serial ports receiving port of IIC sockets P5, and the data of the other end and IIC sockets P5/
Serial ports sending port is connected；
One end of air carbon dioxide sensor is connected with one end of resistance R17, and the other end is connected with one end of resistance R18；
Soil temperature sensor is connected with intensity of illumination sensor with clock/serial ports receiving port of IIC sockets P5；
The voltage detecting port of soil humidity sensor and P in soil H sensors with IIC sockets P5 is connected.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721816553.XU CN207571525U (en) | 2017-12-22 | 2017-12-22 | A kind of agricultural environment parameter acquisition communicating circuit |
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| CN201721816553.XU CN207571525U (en) | 2017-12-22 | 2017-12-22 | A kind of agricultural environment parameter acquisition communicating circuit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108776451A (en) * | 2018-08-01 | 2018-11-09 | 郑州源创智控有限公司 | Solar energy radio grain feelings detect extension set |
| CN109903547A (en) * | 2019-04-11 | 2019-06-18 | 山西省计量科学研究院 | Low energy consumption agricultural environment information wireless acquisition system |
| CN110161939A (en) * | 2019-06-28 | 2019-08-23 | 山西省计量科学研究院 | A kind of agricultural environment sensor-use amount control device and its control method |
-
2017
- 2017-12-22 CN CN201721816553.XU patent/CN207571525U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108776451A (en) * | 2018-08-01 | 2018-11-09 | 郑州源创智控有限公司 | Solar energy radio grain feelings detect extension set |
| CN109903547A (en) * | 2019-04-11 | 2019-06-18 | 山西省计量科学研究院 | Low energy consumption agricultural environment information wireless acquisition system |
| CN110161939A (en) * | 2019-06-28 | 2019-08-23 | 山西省计量科学研究院 | A kind of agricultural environment sensor-use amount control device and its control method |
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