CN109814456A - A kind of LED illumination control system of plant factor - Google Patents
A kind of LED illumination control system of plant factor Download PDFInfo
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- CN109814456A CN109814456A CN201910103994.2A CN201910103994A CN109814456A CN 109814456 A CN109814456 A CN 109814456A CN 201910103994 A CN201910103994 A CN 201910103994A CN 109814456 A CN109814456 A CN 109814456A
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Abstract
This application discloses a kind of LED illumination control systems of plant factor, it include: driving power and controller, the output cathode and output negative pole of driving power are parallel with N branch, each branch road is in series with first switch tube and for providing the LED illumination lamp group of illumination for the plant in target plant factory, also, the on or off of the first switch tube of N item branch road is controlled by controller.Because being in this application the on or off state for controlling each LED illumination lamp group in target plant factory by a driving power, a controller and N number of first switch tube, so the design cost of LED illumination control system can be substantially reduced by the application.
Description
Technical field
The present invention relates to intelligent lighting technical field, in particular to a kind of LED illumination control system of plant factor.
Background technique
Plant factor, which refers to, carries out high-precision control to the growing environment of plant by computer or sensor, and is come with this
Shorten the growth cycle of plant.In existing plant factor, for the photosynthesis of simulating plant, it usually needs in plant work
A LED illumination lamp group is set in each cultivation space of factory, then connects a driving electricity in each LED illumination lamp group
Then source by opening or closing to control the on or off of LED illumination lamp group for driving power, and is come with this for cultivation
Plant in space provides corresponding growing environment.But in this kind of LED illumination control system, need for each LED photograph
Bright lamp group provides a driving power, not only will increase the usage quantity of driving power in LED illumination control system in this way, and
And it can also greatly increase the design cost of LED illumination control system.
It is this it can be seen that kind of mode to reduce the design cost of the LED illumination control system of plant factor by
Field technical staff's urgent problem to be solved.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of LED illumination control system of plant factor, to reduce LED
The design cost of lighting control system.Its concrete scheme is as follows:
A kind of LED illumination control system of plant factor, comprising: driving power and controller, the driving power it is defeated
Anode and output negative pole are parallel with N branch out, and each branch road is in series with first switch tube and for being target plant
Plant in factory provides the LED illumination lamp group of illumination, also, the on or off of the first switch tube of branch road described in N item
It is controlled by the controller；N≥2.
Preferably, the driving power is specially constant-voltage driving power source.
Preferably, the constant-voltage driving power source includes rectifier bridge, Boost circuit and LLC circuit；
Wherein, the first end of the rectifier bridge and the second end of the rectifier bridge are connected with power grid respectively, the rectifier bridge
Third end be connected with the first end of the Boost circuit, the second end at the 4th end and the Boost circuit of the rectifier bridge
It is connected, the third end of the Boost circuit is connected with the first end of the LLC circuit, the 4th end of the Boost circuit and institute
The second end for stating LLC circuit is connected；
Correspondingly, output cathode of the third end of the LLC circuit for the driving power, the 4th of the LLC circuit the
End is the output negative pole of the driving power.
Preferably, the Boost circuit include the first inductance, first diode, second switch, the first electrolytic capacitor,
Pfc circuit, the first amplifier, first resistor and first capacitor；
Wherein, the second end of first inductance is connected with the first diode anode, and the first diode is born
Pole is connected with the anode of the electrolytic capacitor, and the cathode of the electrolytic capacitor is connected with one end of the second switch, described
The other end of second switch is connected with the second end of the inductance, the control terminal of the second switch and the pfc circuit
Output end be connected, the input terminal of the pfc circuit is connected with the output end of first amplifier, the amplifier forward direction input
End for receiving the first reference voltage, the reverse input end of the amplifier respectively with the cathode of the first diode and described the
The anode of one capacitor is connected, and the cathode of the first capacitor is connected with the first end of the first resistor, the first resistor
Second end is connected with the output end of the amplifier；
The first end of first inductance is the first end of the Boost circuit, and one end of the second switch is institute
The second end of Boost circuit is stated, the cathode of the first diode is the third end of the Boost circuit, first electrolysis
The cathode of capacitor is the 4th end of the Boost circuit；
The LLC circuit includes third switching tube, the 4th switching tube, the second inductance, the second capacitor, transformer, the two or two
Pole pipe, third diode, the second electrolytic capacitor, the second amplifier, second resistance, third capacitor and for controlling three switching tube
With the control circuit of the 4th switching tube alternate conduction or shutdown；
Wherein, the control terminal of the third switching tube is connected with the first end of the control circuit, the third switching tube
One end be connected with one end of the 4th switching tube, the second end of the control terminal of the 4th switching tube and the control circuit
It is connected, the first end of second inductance is connected with one end of the third switching tube, the second end of second inductance and institute
The first end for stating transformer is connected, and the other end of the 4th switching tube is connected with the anode of second capacitor, and described second
The cathode of capacitor is connected with the second end of the transformer, the positive phase at the third end of the transformer and second diode
Even, the 4th end of the transformer is connected with the anode of the third diode, the cathode of the third diode and described the
The cathode of two diodes is connected, and the 5th end of the transformer is connected with the cathode of second electrolytic capacitor, second electricity
The anode of solution capacitor is connected with the cathode of second diode, and the third end of the control circuit is defeated with second amplifier
Outlet is connected, and the positive input of second amplifier is for receiving the second reference voltage, the reversed input of second amplifier
End is connected with the cathode of the anode of the third capacitor and second diode respectively, the cathode of the third capacitor with it is described
The first end of second resistance is connected, and the second end of the second resistance is connected with the output end of second amplifier；
The other end of the third switching tube is the first end of the LLC circuit, and the other end of the 4th switching tube is
The second end of the LLC circuit, the third end of the just extremely described LLC circuit of second electrolytic capacitor, second electrolysis
The cathode of capacitor is the 4th end of the LLC circuit.
It preferably, further include the current-limiting circuit for being in preset value for controlling the electric current of the first switch tube.
Preferably, the current-limiting circuit includes third amplifier and 3rd resistor；
Wherein, the output end of the third amplifier is connected with the control terminal of the first switch tube, the third amplifier
Positive input is connected with the controller, the reverse input end of third amplifier one end with the first switch tube respectively
It is connected with the first end of the 3rd resistor, the second end of the 3rd resistor is connected with the output negative pole of the driving power,
The other end of the first switch tube is connected with one end of the LED illumination lamp group, the other end of the LED illumination lamp group and institute
The output cathode for stating driving power is connected；
Alternatively, the output end of the third amplifier is connected with the control terminal of the first switch tube, the third amplifier
Positive input is connected with the controller, the reverse input end of third amplifier one end with the first switch tube respectively
It is connected with the first end of the 3rd resistor, the second end of the 3rd resistor is connected with one end of the LED illumination lamp group, institute
The other end for stating LED illumination lamp group is connected with the output negative pole of the driving power, the other end of the first switch tube and institute
The output cathode for stating driving power is connected.
Preferably, the controller includes:
For according to all first switch tubes in target plant factory described in default control rule alternating or Interleaved control
The operation controller of on or off.
Correspondingly, being applied to aforementioned disclosed plant the invention also discloses a kind of LED illumination control method of plant factor
Controller in the LED illumination control system of object factory, this method comprises:
According to the conducting of all first switch tubes in target plant factory described in default control rule alternating or Interleaved control
Or shutdown.
Preferably, described to be opened according in target plant factory described in default control rule alternating or Interleaved control all first
Close the process of the on or off of pipe, comprising:
Illumination previously according to plant in the target plant factory needs to set each LED in the target plant factory
The opening time of lighting lamp group and unlatching period；
Based on LED illumination lamp groups all in target plant factory alternating or principle staggeredly in the conductive state, root
The mesh is set according to the opening time, the quantity for opening LED illumination lamp group in period and the target plant factory
Mark the first switch tube opening time in the conductive state；Wherein, the target first switch tube is the target plant factory
In any one first switch tube；
The on or off of all first switch tubes in the target plant factory is successively controlled according to the opening time.
Preferably, described alternately or to be staggeredly on shape based on LED illumination lamp groups all in the target plant factory
The principle of state, according to the opening time, the quantity for opening LED illumination lamp group in period and the target plant factory
Set the process of target first switch tube opening time in the conductive state, comprising:
If the illumination needs of the plant in the target plant factory are all the same, using described in object module setting unlatching
The time interval of any two adjacent LED lighting lamp group in target plant factory；
Wherein, the expression formula of the object module are as follows:
In formula, t is the time interval, TonFor the opening time of target LED illumination lamp group, T is target LED illumination lamp group
The unlatching period, N be the target plant factory in LED illumination lamp group quantity；
The target first switch tube opening time in the conductive state is determined according to the time interval.
As it can be seen that being by a driving electricity in the LED illumination control system of plant factor provided by the present invention
Source, a controller and N number of first switch tube replace N number of driving power in the prior art, to control target plant work
The on or off of N number of LED illumination lamp group in factory, due to making for a controller, a driving power and N number of first switch tube
Valence cost is far smaller than the cost of N number of driving power, so, LED photograph can be substantially reduced on the whole through the invention
The design cost of bright control system.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is a kind of structure chart of the LED illumination control system of plant factor provided in an embodiment of the present invention；
Fig. 2 is a kind of structure chart of constant-voltage driving power source provided in an embodiment of the present invention；
Fig. 3 is the structure chart of the LED illumination control system of another plant factor provided in an embodiment of the present invention；
Fig. 4 is the schematic diagram that a kind of two groups of LED illumination lamp groups provided in an embodiment of the present invention are alternately opened；
Fig. 5 is the schematic diagram that a kind of three groups of LED illumination lamp groups provided in an embodiment of the present invention are alternately opened.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1, being a kind of LED illumination control system of plant factor provided in an embodiment of the present invention, the system packet
It includes:
Driving power and controller, the output cathode and output negative pole of driving power are parallel with N branch, each branch
On be in series with first switch tube and for providing the LED illumination lamp group of illumination, also, N for the plant in target plant factory
The on or off of the first switch tube of item branch road is controlled by controller；N≥2.
As shown in Figure 1, being the structure chart of LED illumination control system provided in this embodiment, within the system, driving power
Output cathode be connected respectively with the first end of N number of LED illumination lamp group, the second end of N number of LED illumination lamp group is respectively with N number of
One end of one switching tube is connected, and the other end of N number of first switch tube is connected with the output negative pole of driving power respectively, and N number of first
The control terminal of switching tube is connected with controller respectively.
It should be noted that in the present embodiment, LED in parallel branch between driving power output cathode and output negative pole
The link position relationship of lighting lamp group and first switch tube in practical application can be interchanged, that is, the output of driving power
Anode either first be connected with LED illumination lamp group, be also possible to elder generation and be connected with first switch tube, the present embodiment to it not
Make specific limit.
In the present embodiment, it is connected at driving power both ends N number of for providing illumination for the plant in target plant factory
LED illumination lamp group L1, L2 ... Ln, wherein this N number of LED illumination lamp group L1, L2 ... Ln, can also be with either series connection
Parallel connection, the present embodiment are not construed as limiting it.
Later, N number of first switch tube S1, N number of first switch tube S1 and N number of LED illumination are also connected in driving power
Lamp group L1, L2 ... Ln is connected to the rear class of driving power after connecting respectively, wherein the control terminal of N number of first switch tube S1
It is both connected to the output end of controller, and controls by controller that N number of first switch tube is in the conductive state or off state, this
Sample one, so that it may so that N number of LED illumination lamp group L1, L2 ... Ln is in the open state or closed state.
It should be noted that each cultivation space in target plant factory is arranged in each LED illumination lamp group
Inside cultivates at each and plants plant in space, mutually indepedent between each cultivation space, also, in each cultivation
Equipment required for cultivated plant, such as cultivating stand, Planting board, nutrient solution and illumination equipment can also be set in space.
It is also contemplated that in the present embodiment, N number of LED illumination lamp can be driven simultaneously using the same driving power
The illumination of group L1, L2 ... Ln, then, controller passes through the on or off for controlling N number of first switch tube, to control N number of LED
Lighting lamp group L1, L2 ... Ln's is switched on or off, and so, LED illumination control system can control target plant work
Plant in factory in each cultivation space is alternately in illumination conditions or dark state, and thus comes in target plant factory
Plant carries out growth control.
Obviously, compared with the prior art, pass through the LED illumination control system provided in this implementation, it is thus only necessary to one
Driving power, a controller and N number of first switch tube can control N number of LED illumination lamp group L1, L2 ... Ln conducting or
Shutdown, so, in this way, the usage quantity of driving power in LED illumination control system can be greatly reduced, in this way
One, it is greatly lowered the whole design cost of LED illumination control system, moreover, controlling N number of LED illumination by controller
Lamp group L1, L2 ... Ln is alternately or staggeredly in the open state, can also reduce the general power of driving power output.
As it can be seen that being by a driving electricity in the LED illumination control system of the plant factor provided by the present embodiment
Source, a controller and N number of first switch tube replace N number of driving power in the prior art, to control target plant work
The on or off of N number of LED illumination lamp group in factory, due to making for a controller, a driving power and N number of first switch tube
Valence cost is far smaller than the cost of N number of driving power, so, LED can be substantially reduced on the whole through this embodiment
The design cost of lighting control system.
Based on the above embodiment, the present embodiment is further described and optimizes to technical solution.Specifically, driving power
For constant-voltage driving power source.
It is understood that constant-voltage driving power source refers to the constant driving power of the voltages keep constant of output.Because permanent
Pressure driving power has the advantages that good in anti-interference performance, DC ripple are small, work efficiency is high, so, in the present embodiment, it will drive
Dynamic power supply is set as constant-voltage driving power source, it is ensured that the safety and stability of LED illumination control system in the process of running.
Based on the above embodiment, the present embodiment is further described and optimizes to technical solution.As shown in Fig. 2, being this
A kind of structure chart for constant-voltage driving power source that embodiment provides.
As a preferred embodiment, constant-voltage driving power source includes rectifier bridge, Boost circuit and LLC circuit；
Wherein, the first end of rectifier bridge and the second end of rectifier bridge are connected with power grid respectively, the third end of rectifier bridge with
The first end of Boost circuit is connected, and the 4th end of rectifier bridge is connected with the second end of Boost circuit, the third end of Boost circuit
It is connected with the first end of LLC circuit, the 4th end of Boost circuit is connected with the second end of LLC circuit；
Correspondingly, the third end of LLC circuit is the output cathode of driving power, the 4th end of LLC circuit is driving power
Output negative pole.
In the present embodiment, there is provided a kind of structure charts of specific constant-voltage driving power source.In the constant-voltage driving power source
In, rectifier bridge is used for the alternating voltage V for exporting power gridinBe converted to DC voltage Vac, Boost circuit is used for rectifier bridge is defeated
DC voltage V outacIt is converted into steady dc voltage Vbus, DC voltage V of the LLC circuit for exporting Boost circuitbus
It is converted into the DC voltage of constant amplitude.
As it can be seen that constant-voltage driving power source provided by through this embodiment, may further ensure that constant-voltage driving power source exports
DC voltage stability.
Specifically, Boost circuit includes the first inductance, first diode, second switch, the first electrolytic capacitor, PFC electricity
Road, the first amplifier, first resistor and first capacitor；
Wherein, the second end of the first inductance is connected with first diode anode, the cathode and electrolytic capacitor of first diode
Anode be connected, the cathode of electrolytic capacitor is connected with one end of second switch, the of the other end of second switch and inductance
Two ends are connected, and the control terminal of second switch is connected with the output end of pfc circuit, the input terminal of pfc circuit and the first amplifier
Output end is connected, and the positive input of amplifier is for receiving the first reference voltage, and the reverse input end of amplifier is respectively with the one or two
The cathode of pole pipe is connected with the anode of first capacitor, and the cathode of first capacitor is connected with the first end of first resistor, first resistor
Second end be connected with the output end of amplifier；
The first end of first inductance is the first end of Boost circuit, and one end of second switch is the second of Boost circuit
End, the cathode of first diode are the third end of Boost circuit, and the cathode of the first electrolytic capacitor is the 4th end of Boost circuit；
LLC circuit include third switching tube, the 4th switching tube, the second inductance, the second capacitor, transformer, the second diode,
Third diode, the second electrolytic capacitor, the second amplifier, second resistance, third capacitor and for control three switching tubes and the 4th open
Close the control circuit of pipe alternate conduction or shutdown；
Wherein, the control terminal of third switching tube is connected with the first end of control circuit, one end of third switching tube and the 4th
One end of switching tube is connected, and the control terminal of the 4th switching tube is connected with the second end of control circuit,
The first end of second inductance is connected with one end of third switching tube, and the first of the second end of the second inductance and transformer
End is connected, and the other end of the 4th switching tube is connected with the anode of the second capacitor, the cathode of the second capacitor and the second end of transformer
It is connected, the third end of transformer is connected with the anode of the second diode, the 4th end of transformer and the positive phase of third diode
Even, the cathode of third diode is connected with the cathode of the second diode, the cathode at the 5th end and the second electrolytic capacitor of transformer
It is connected, the anode of the second electrolytic capacitor is connected with the cathode of the second diode, and the third end of control circuit is defeated with the second amplifier
Outlet is connected, the positive input of the second amplifier for receiving the second reference voltage, the reverse input end of the second amplifier respectively with
The anode of third capacitor is connected with the cathode of the second diode, and the cathode of third capacitor is connected with the first end of second resistance, the
The second end of two resistance is connected with the output end of the second amplifier；
The other end of third switching tube is the first end of LLC circuit, and the other end of the 4th switching tube is the second of LLC circuit
End, the just extremely third end of LLC circuit of the second electrolytic capacitor, the cathode of the second electrolytic capacitor are the 4th end of LLC circuit.
In the present embodiment, there is provided the structure charts of a kind of specific Boost circuit and LLC circuit, as shown in Fig. 2,
In the Boost circuit of the constant-voltage driving power source, the first inductance L1, first diode D1, the electrolysis of second switch S2 and first
Capacitor C4 forms the first main power circuit, and the first amplifier, first resistor R1 and first capacitor C1 form a feedback loop, the feedback
The DC voltage V that ring can export Boost circuitbusSampled value and the first reference voltage Vref1It is compared, and will output
Signal is sent to pfc circuit and is corrected, and later, pfc circuit can export control second switch S2 according to the output signal
The driving control signal of on or off, so, so that it may so that Boost circuit is realized PFC function and exported stable
DC voltage Vbus。
In addition, in the LLC circuit of the constant-voltage driving power source, third switching tube S3, the 4th switching tube S4, the second inductance
L2, transformer, the second diode D2, third diode D3 and the second electrolytic capacitor C5 form the second main power circuit, the second fortune
It puts, second resistance R2 and third capacitor C3 composition Voltage loop, which can be by the DC voltage V of LLC circuit output0With second
Reference voltage Vref2It is compared, then, is exported at control third switching tube S3 and the 4th switching tube S4 alternating to control circuit
In the control signal of on or off state, so, so that it may so that the DC voltage of LLC circuit output amplitude stability
V0。
Based on the above embodiment, the present embodiment is further described and optimizes to technical solution.As shown in figure 3, for this
The structure chart of the LED illumination control system for another plant factor that inventive embodiments provide.Specifically, above-mentioned LED illumination control
System processed further include:
Electric current for controlling first switch tube is in the current-limiting circuit of preset value.
In the present embodiment, it in order to guarantee the stability of LED illumination control system in the process of running, is also shone in the LED
The current-limiting circuit for being in preset value for controlling the electric current of first switch tube S1 is provided in bright control system, so, just
It can guarantee that the current value flowed through in first switch tube S1 is more stable, and thereby ensure that LED illumination lamp group is shone to plant
Stability during bright.
Optionally, current-limiting circuit includes third amplifier and 3rd resistor；
Wherein, the output end of third amplifier is connected with the control terminal of first switch tube, the positive input of third amplifier with
Controller is connected, and the reverse input end of third amplifier is connected with the first end of one end of first switch tube and 3rd resistor respectively,
The second end of 3rd resistor is connected with the output negative pole of driving power, the other end of first switch tube and the one of LED illumination lamp group
End is connected, and the other end of LED illumination lamp group is connected with the output cathode of driving power；
Alternatively, the output end of third amplifier is connected with the control terminal of first switch tube, the positive input of third amplifier with
Controller is connected, and the reverse input end of third amplifier is connected with the first end of one end of first switch tube and 3rd resistor respectively,
The second end of 3rd resistor is connected with one end of LED illumination lamp group, and the other end of LED illumination lamp group and the output of driving power are negative
Extremely it is connected, the other end of first switch tube is connected with the output cathode of driving power.
As shown in figure 3, being the structure chart of the LED illumination control system of another plant factor provided in this embodiment.?
In LED illumination control system shown in Fig. 3, current-limiting circuit includes third amplifier and 3rd resistor；Current-limiting circuit includes third fortune
It puts and 3rd resistor, third amplifier can acquire the electric current for flowing through first switch tube S1, and the electric current is input to third amplifier
Reverse input end is compared with the reference voltage of positive input, is exported corresponding control signal, is opened so that flowing through first
The electric current for closing pipe S1 does not exceed current value set by reference signal, so, so that it may guarantee in first switch tube
Electric current is in preset value.
In addition, it is necessary to explanation, the link position of LED illumination lamp group and first switch tube can be into the structure chart
Row exchanges, and working principle is no difference, so, working principle of another current-limiting circuit is not repeated specifically at this.
As it can be seen that through this embodiment provided by current-limiting circuit, it is ensured that current-limiting circuit in actual operation can be real
Shi Xing.
Optionally, current-limiting circuit is specially IGBT.
In practical applications, current-limiting circuit can also be set to IGBT (Insulated Gate Bipolar
Transistor, insulated gate bipolar transistor) because IGBT can not only play the metering function to first switch tube S1,
Moreover, because IGBT also has many advantages, such as that energy conservation, heat dissipation is stable, safety operation area is big, so, it sets current-limiting circuit to
IGBT can also further increase the safety of LED illumination control in the process of running.
Optionally, current-limiting circuit is specially metal-oxide-semiconductor.
In practical applications, metal-oxide-semiconductor can also be set by current-limiting circuit, opened because metal-oxide-semiconductor can also be played first
The metering function of pipe S1 is closed, moreover, it is the long service life of metal-oxide-semiconductor, light-weight, small in size, so, it will be able to opposite to reduce
Dimensional footprint of the current-limiting circuit to LED illumination control system.
Based on the above embodiment, the present embodiment is further described and optimizes to technical solution.Specifically, above-mentioned control
Device includes:
For the conducting according to all first switch tubes in default control rule alternating or Interleaved control target plant factory
Or the operation controller of shutdown.
In practical applications, can also be arranged in the controller for according to preset rules Interleaved control target plant factory
In all first switch tubes be on or the operation controller of off state, that is, controlling driving by operation controller
The N number of LED illumination lamp group connected on power supply is alternately or staggeredly on or off state, so that in target plant factory
The opening and closing of all LED illumination lamp groups are alternately or staggeredly to carry out, so that the plant in target plant factory can
In environment alternately in light and dark.
It should be noted that enabling to all LED illumination lamp group alternatings in target plant factory in practical application
Or staggeredly setting method in the conductive state is varied, so, the setting method of default control rule is also varied.Cause
This, the present embodiment is not construed as limiting the specific setting method of default control rule, as long as enabling in target plant factory
Each LED illumination lamp group alternately or is staggeredly on or off state.
In the present embodiment, since the LED illumination lamp group in target plant factory is alternating or staggeredly in the conductive state,
In compared with the prior art, while the method for opening LED illumination lamp group, it can substantially reduce and drive electricity in target plant factory
General power consumed by source.
Correspondingly, also disclosing a kind of LED illumination control method of plant factor in the present embodiment, it is applied to aforementioned public affairs
Controller in the LED illumination control system of the plant factor opened, this method comprises:
Conducting or pass according to all first switch tubes in default control rule alternating or Interleaved control target plant factory
It is disconnected.
In the present embodiment, according to all first switches in default control rule alternating or Interleaved control target plant factory
The content of pipe on or off, reference can be made to above-described embodiment disclosure of that, this is no longer being repeated.
Based on the above embodiment, the present embodiment is further described and optimizes to technical solution, specifically, above-mentioned step
It is rapid: according to the mistake of the on or off of all first switch tubes in default control rule alternating or Interleaved control target plant factory
Journey, comprising:
Illumination previously according to plant in target plant factory needs to set each LED illumination lamp group in target plant factory
Opening time and open the period；
Alternately or principle staggeredly in the conductive state based on LED illumination lamp groups all in target plant factory, according to opening
Open duration, the quantity setting target first switch tube of opening LED illumination lamp group in period and target plant factory is on
The opening time of state；
Wherein, target first switch tube is any one first switch tube in target plant factory；
The on or off of all first switch tubes in target plant factory is successively controlled according to the opening time.
It is understood that since each LED illumination lamp group is that cultivation space different in target plant factory is arranged in
In the middle, so, the unlatching period and opening time of each LED illumination lamp group in target plant factory, it should be by target plant
The growth phase of plant is determined in each cultivation space in factory.
So being to be needed the illumination of plant for target plant work according to target plant factory first in the present embodiment
Each of factory LED illumination lamp group sets opening time Ton1、Ton2、…、TonNWith unlatching cycle T1、T2、…、Tn, then, then
The quantity of LED illumination lamp group in combining target plant factor, and based on LED illumination lamp groups all in target plant factory alternately or
Staggeredly principle in the conductive state, when going target first switch tube unlatching in the conductive state in setting target plant factory
Between, finally, successively being controlled all in target plant factory according to the target first switch tube opening time in the conductive state
The on or off of one switching tube, it is clear that the method in through this embodiment can make LED all in target plant factory
Lighting lamp group is alternately or staggeredly in the conductive state.
Further, it should be noted that the method in through this embodiment, available at multiple target first switch tubes
In the opening time of on state, so, specifically set how many for the opening time of target first switch tube, it can be according to reality
Depending on the situation of border, the present embodiment is not especially limited it.
As it can be seen that the method in through this embodiment, ensure that staff is whole in setting default control procedure of rule
Body reliability.
Specifically, above-mentioned steps: alternately or being staggeredly on shape based on LED illumination lamp groups all in target plant factory
The principle of state sets target first according to the quantity of LED illumination lamp group in opening time, unlatching period and target plant factory
The process of switching tube opening time in the conductive state, comprising:
If the illumination needs of the plant in target plant factory are all the same, target plant is opened using object module setting
The time interval of any two adjacent LED lighting lamp group in factory；
Wherein, the expression formula of object module are as follows:
In formula, t is time interval, TonFor the opening time of target LED illumination lamp group, T is opening for target LED illumination lamp group
It opens the period, N is the quantity of LED illumination lamp group in target plant factory；
The target first switch tube opening time in the conductive state is determined according to time interval.
It in the present embodiment, is that list target first switch tube in a kind of setting target plant factory in the conductive state
Opening time method.Specifically, if when the illumination of plant in target plant factory needs all the same, target
The unlatching cycle T and opening time T of each LED light group in plant factoronAlso should be all identical, under such state, so that it may root
The time interval of any two adjacent LED lighting lamp group in target plant factory is set according to object module.
It is also contemplated that if determining that any two adjacent LED illuminates in target plant factory according to object module
After the time interval of lamp group, as long as setting the opening time of any one LED illumination lamp group in target plant factory, so that it may
Determine the opening time of all LED illumination lamp groups in target plant factory, later, controller can be according to target plant work
The opening time of all LED illumination lamp groups successively opens all LED illumination lamp groups in target plant factory in factory, thus may be used
So that LED illumination lamp group all in target plant factory is alternately or staggeredly in the conductive state.
Moreover, can guarantee to drive in target plant factory to the full extent according to method provided by the present embodiment
The power total value of power supply output is relatively minimal, is illustrated below to the process of driving power output power.
Assuming that the value range for the time interval t that any two adjacent LED lighting lamp group is opened in target plant factory are as follows:
So, the general power of driving power are as follows:
P=[N*Ton/T]*P0；
In formula, P is the general power of driving power, P0The power of single led lighting lamp group, [N*T are driven for driving poweron/
T] it is N*TonThe max-int of/T calculated result, for example, N=3, Ton=3h, T=5h, N*TonWhen=1.8, then to [N*Ton/
T] take max-int 2.
As shown in figure 4, the schematic diagram alternately opened for two groups of LED illumination lamp groups provided in an embodiment of the present invention.If
There are two groups of LED illumination lamp groups in target plant factory, the misphase time t that this two groups of LED illumination lamp groups are opened012h is set as,
And T is set by the opening time of this two groups of LED illumination lamp groupson1=Ton2=12h, unlatching period are set as T1=T2=for 24 hours,
So, it is as shown in Figure 4 to open situation for the misphase of this two groups of LED illumination lamp groups.
In this example, it is assumed that the power of each group of LED illumination lamp group is identical in above-mentioned two groups of LED illumination lamp groups, and
The power of each group of LED illumination lamp group is set as P0, driving power power be set as P, then, through this embodiment in side
Method, driving power needed for driving power are P=P0.If according to the method in the prior art, each group of LED illumination lamp group
It is required to a driving power driving, at this point, driving power needed for driving power is P=2P0。
As shown in figure 5, the schematic diagram alternately opened for three groups of LED illumination lamp groups provided in an embodiment of the present invention.If
There are three groups of LED illumination lamp groups in target plant factory, the misphase time t that this three groups of LED illumination lamp groups are opened08h is set as,
T is set by the opening time of this three groups of LED illumination lamp groupson1=Ton2=Ton3=16h, unlatching period are set as T1=T2=T3
=for 24 hours, then, it is as shown in Figure 5 that the misphase of this three groups of LED illumination lamp groups opens situation.
In this example, it is assumed that the power of each group of LED illumination lamp group is identical in above-mentioned three groups of LED illumination lamp groups, and
The power of each group of LED illumination lamp group is set as P0, driving power power be set as P, then, through this embodiment in side
Method, driving power needed for driving power are P=2P0.If according to the method in the prior art, each group of LED illumination lamp
Group is required to a driving power driving, at this point, driving power needed for driving power is P=3P0。
It can be seen that power consumed by driving power can not only be reduced by the method in the application, moreover,
The design cost of LED illumination control system can be reduced on the whole.
It is to be said to the alternating or Interleaved control method of LED illumination lamp group each in LED illumination control system above
Bright, for the time interval t of any two adjacent LED lighting lamp group in target plant factory selection can pass through following sides
Method is calculated, specific:
WhenWhen for integer,
WhenWhen not being integer,
In formula, k is natural number, and T is the unlatching period of LED illumination lamp group, TonFor the opening time of LED illumination lamp group, t is
The time interval of any two adjacent LED lighting lamp group in target plant factory.
In specific implementation, N is to determine value, is the quantity of LED illumination lamp group in LED illumination control system, f (x)=1
Indicate that LED illumination lamp group is in the open state, f (x)=0 indicates that LED illumination lamp group is in close state.
Specifically, it is desirable that the x for substituting into operation can take any positive number, when equation is set up, only one change of entire equation
T is measured, so, the value range of variable t can be calculated.In practical application, in order to save computing resource, if T and Ton
Value be as unit of integer hour, then, the value of t need to only take all integer hours in a T.
It should be noted that in practical application, for the simplicity of calculating process, whenWhen for integer, t's is taken
Value isWhenWhen cannot be divided evenly, the value of t be
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with it is other
The difference of embodiment, same or similar part may refer to each other between each embodiment.Since each embodiment discloses
Method it is corresponding, so being described relatively simple, reference may be made to the description of the method.
Finally, it is to be noted that, herein, relational terms such as first and second and the like be used merely to by
One entity or operation are distinguished with another entity or operation, without necessarily requiring or implying these entities or operation
Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant meaning
Covering non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes that
A little elements, but also including other elements that are not explicitly listed, or further include for this process, method, article or
The intrinsic element of equipment.In the absence of more restrictions, the element limited by sentence "including a ...", is not arranged
Except there is also other identical elements in the process, method, article or apparatus that includes the element.
A kind of LED illumination control system of plant factor provided by the present invention is described in detail above, herein
In apply that a specific example illustrates the principle and implementation of the invention, the explanation of above example is only intended to sides
Assistant solves method and its core concept of the invention；At the same time, for those skilled in the art, think of according to the present invention
Think, there will be changes in the specific implementation manner and application range, in conclusion the content of the present specification should not be construed as pair
Limitation of the invention.
Claims (10)
1. a kind of LED illumination control system of plant factor characterized by comprising driving power and controller, the driving
The output cathode and output negative pole of power supply are parallel with N branch, each branch road be in series with first switch tube and for for
Plant in target plant factory provides the LED illumination lamp group of illumination, also, the first switch tube of branch road described in N item is led
Logical or shutdown is controlled by the controller；N≥2.
2. LED illumination control system according to claim 1, which is characterized in that the driving power is specially that constant pressure is driven
Dynamic power supply.
3. LED illumination control system according to claim 2, which is characterized in that the constant-voltage driving power source includes rectification
Bridge, Boost circuit and LLC circuit；
Wherein, the first end of the rectifier bridge and the second end of the rectifier bridge are connected with power grid respectively, and the of the rectifier bridge
Three ends are connected with the first end of the Boost circuit, the 4th end of the rectifier bridge and the second end phase of the Boost circuit
Even, the third end of the Boost circuit is connected with the first end of the LLC circuit, the 4th end of the Boost circuit with it is described
The second end of LLC circuit is connected；
Correspondingly, the third end of the LLC circuit is the output cathode of the driving power, the 4th end of the LLC circuit is
The output negative pole of the driving power.
4. LED illumination control system according to claim 3, which is characterized in that the Boost circuit includes the first electricity
Sense, first diode, second switch, the first electrolytic capacitor, pfc circuit, the first amplifier, first resistor and first capacitor；
Wherein, the second end of first inductance is connected with the first diode anode, the cathode of the first diode with
The anode of the electrolytic capacitor is connected, and the cathode of the electrolytic capacitor is connected with one end of the second switch, and described second
The other end of switching tube is connected with the second end of the inductance, and the control terminal of the second switch is defeated with the pfc circuit
Outlet is connected, and the input terminal of the pfc circuit is connected with the output end of first amplifier, and the positive input of the amplifier is used
In receiving the first reference voltage, the reverse input end of the amplifier respectively with the cathode of the first diode and first electricity
The anode of appearance is connected, and the cathode of the first capacitor is connected with the first end of the first resistor, and the second of the first resistor
End is connected with the output end of the amplifier；
The first end of first inductance is the first end of the Boost circuit, and one end of the second switch is described
The second end of Boost circuit, the cathode of the first diode are the third end of the Boost circuit, the first electrolysis electricity
The cathode of appearance is the 4th end of the Boost circuit；
The LLC circuit include third switching tube, the 4th switching tube, the second inductance, the second capacitor, transformer, the second diode,
Third diode, the second electrolytic capacitor, the second amplifier, second resistance, third capacitor and for controlling three switching tube and institute
State the control circuit of the 4th switching tube alternate conduction or shutdown；
Wherein, the control terminal of the third switching tube is connected with the first end of the control circuit, and the one of the third switching tube
End is connected with one end of the 4th switching tube, the second end phase of the control terminal and the control circuit of the 4th switching tube
Even, the first end of second inductance is connected with one end of the third switching tube, the second end of second inductance with it is described
The first end of transformer is connected, and the other end of the 4th switching tube is connected with the anode of second capacitor, second electricity
The cathode of appearance is connected with the second end of the transformer, the positive phase at the third end of the transformer and second diode
Even, the 4th end of the transformer is connected with the anode of the third diode, the cathode of the third diode and described the
The cathode of two diodes is connected, and the 5th end of the transformer is connected with the cathode of second electrolytic capacitor, second electricity
The anode of solution capacitor is connected with the cathode of second diode, and the third end of the control circuit is defeated with second amplifier
Outlet is connected, and the positive input of second amplifier is for receiving the second reference voltage, the reversed input of second amplifier
End is connected with the cathode of the anode of the third capacitor and second diode respectively, the cathode of the third capacitor with it is described
The first end of second resistance is connected, and the second end of the second resistance is connected with the output end of second amplifier；
The other end of the third switching tube is the first end of the LLC circuit, and the other end of the 4th switching tube is described
The second end of LLC circuit, the third end of the just extremely described LLC circuit of second electrolytic capacitor, second electrolytic capacitor
Cathode be the LLC circuit the 4th end.
5. LED illumination control system according to claim 1, which is characterized in that further include being opened for controlling described first
The electric current for closing pipe is in the current-limiting circuit of preset value.
6. LED illumination control system according to claim 5, which is characterized in that the current-limiting circuit includes third amplifier
And 3rd resistor；
Wherein, the output end of the third amplifier is connected with the control terminal of the first switch tube, the forward direction of the third amplifier
Input terminal is connected with the controller, the reverse input end of the third amplifier respectively with one end of the first switch tube and institute
The first end for stating 3rd resistor is connected, and the second end of the 3rd resistor is connected with the output negative pole of the driving power, described
The other end of first switch tube is connected with one end of the LED illumination lamp group, the other end of the LED illumination lamp group and the drive
The output cathode of dynamic power supply is connected；
Alternatively, the output end of the third amplifier is connected with the control terminal of the first switch tube, the forward direction of the third amplifier
Input terminal is connected with the controller, the reverse input end of the third amplifier respectively with one end of the first switch tube and institute
The first end for stating 3rd resistor is connected, and the second end of the 3rd resistor is connected with one end of the LED illumination lamp group, described
The other end of LED illumination lamp group is connected with the output negative pole of the driving power, the other end of the first switch tube with it is described
The output cathode of driving power is connected.
7. LED illumination control system according to any one of claims 1 to 6, which is characterized in that the controller includes:
For the conducting according to all first switch tubes in target plant factory described in default control rule alternating or Interleaved control
Or the operation controller of shutdown.
8. a kind of LED illumination control method of plant factor, which is characterized in that it is described in any item to be applied to claim 1 to 7
Controller in the LED illumination control system of plant factor, this method comprises:
Conducting or pass according to all first switch tubes in target plant factory described in default control rule alternating or Interleaved control
It is disconnected.
9. LED illumination control method according to claim 8, which is characterized in that described to replace according to default control rule
Or in target plant factory described in Interleaved control the on or off of all first switch tubes process, comprising:
Illumination previously according to plant in the target plant factory needs to set each LED illumination in the target plant factory
The opening time of lamp group and unlatching period；
Based on LED illumination lamp groups all in target plant factory alternating or principle staggeredly in the conductive state, according to institute
State opening time, the quantity for opening LED illumination lamp group in period and the target plant factory sets the target the
The one switching tube opening time in the conductive state；Wherein, the target first switch tube is to appoint in the target plant factory
It anticipates a first switch tube；
The on or off of all first switch tubes in the target plant factory is successively controlled according to the opening time.
10. according to the method described in claim 9, it is characterized in that, described shone based on LED all in the target plant factory
Bright lamp group alternating or principle staggeredly in the conductive state, according to the opening time, the unlatching period and the target
The quantity of LED illumination lamp group sets the mistake of target first switch tube opening time in the conductive state in plant factor
Journey, comprising:
If the illumination needs of the plant in the target plant factory are all the same, the target is opened using object module setting
The time interval of any two adjacent LED lighting lamp group in plant factor；
Wherein, the expression formula of the object module are as follows:
In formula, t is the time interval, TonFor the opening time of target LED illumination lamp group, T is opening for target LED illumination lamp group
It opens the period, N is the quantity of LED illumination lamp group in the target plant factory；
The target first switch tube opening time in the conductive state is determined according to the time interval.
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Cited By (1)
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| CN114868542A (en) * | 2022-04-11 | 2022-08-09 | 四维生态科技（杭州）有限公司 | Environment processing method, device and system for strawberry planting |
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