CN111258284A - Multi-greenhouse centralized control system - Google Patents
Multi-greenhouse centralized control system Download PDFInfo
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- CN111258284A CN111258284A CN202010197655.8A CN202010197655A CN111258284A CN 111258284 A CN111258284 A CN 111258284A CN 202010197655 A CN202010197655 A CN 202010197655A CN 111258284 A CN111258284 A CN 111258284A
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- 230000007613 environmental effect Effects 0.000 claims abstract description 24
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- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000008635 plant growth Effects 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 2
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 235000019256 formaldehyde Nutrition 0.000 description 2
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- 239000012855 volatile organic compound Substances 0.000 description 1
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/4183—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by data acquisition, e.g. workpiece identification
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
- G05B19/41845—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM] characterised by system universality, reconfigurability, modularity
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D27/00—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
- G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The invention relates to the technical field of greenhouse equipment, in particular to a multi-greenhouse centralized control system, which comprises: the system comprises an FPGA and a plurality of groups of adjusting mechanisms; the FPGA comprises: a control module; the control module is used for comparing the environmental data of each greenhouse with a corresponding preset threshold value in the current control period and obtaining a corresponding control variable by using a proportional control algorithm; and the adjusting mechanism is arranged in the corresponding greenhouse and used for adjusting the environmental data of the corresponding greenhouse according to the control variable of each greenhouse in the current control period. The invention can simultaneously control the environmental data of a plurality of greenhouses, and is not dependent on manual work.
Description
Technical Field
The invention relates to the technical field of greenhouse equipment, in particular to a multi-greenhouse centralized control system.
Background
In the modern cultivation process, a greenhouse technology is used for establishing a climate condition suitable for plant growth, and an artificial meteorological environment is created to eliminate the restriction of environmental factors such as temperature on the plant growth. The greenhouse can overcome the limitation of the environment on the growth of plants, and can ensure that different plant varieties can be produced in seasons which are not suitable for growth, so that the seasons do not have excessive influence on the growth of the plants, and the dependence on natural conditions is greatly reduced. However, most of cultivation environments in the greenhouse including temperature and humidity and soil environment regulation and control work are still finished manually at present, so that the efficiency is low, the regulation and control precision is low, and time and labor are wasted.
Disclosure of Invention
The multi-greenhouse centralized control system provided by the invention can simultaneously control the environmental data of a plurality of greenhouses, and is not dependent on manual operation.
The invention provides a multi-greenhouse centralized control system, which is characterized by comprising: the system comprises an FPGA and a plurality of groups of adjusting mechanisms;
the FPGA comprises: a control module;
the control module is used for comparing the environmental data of each greenhouse with a corresponding preset threshold value in the current control period and obtaining a corresponding control variable by using a proportional control algorithm;
and the adjusting mechanism is arranged in the corresponding greenhouse and used for adjusting the environmental data of the corresponding greenhouse according to the control variable of each greenhouse in the current control period.
Further, still include:
the wireless communication unit is used for transmitting the environmental data of each greenhouse to the FPGA;
and transmitting the control variables of each greenhouse to the corresponding regulating mechanism.
Still further, the FPGA further comprises:
and the receiving and decoding module is used for decoding the environment data of each greenhouse transmitted by the wireless communication unit and transmitting the decoded environment data of each greenhouse to the control module.
Still further, the FPGA further comprises:
and the data sending module is used for transmitting the control variables of the greenhouses calculated by the control module to the wireless communication unit.
Still further, the FPGA further comprises:
and the storage module is used for storing the preset threshold values of all the greenhouses.
Still further, still include:
and the multiple groups of sensors are used for periodically and correspondingly acquiring the environmental data of each greenhouse and sending the acquired environmental data of each greenhouse to the wireless communication unit.
Preferably, the method further comprises the following steps:
and the display unit is used for displaying the environmental data of each greenhouse and the working state of the adjusting mechanism in the current control period.
Preferably, the method further comprises the following steps:
and the operation unit is used for adjusting the preset threshold values of the greenhouses and inputting the preset threshold values of the greenhouses into the storage module.
Preferably, the operating unit is further used for controlling the working state of the adjusting mechanism.
In the above technical solution, the wireless communication unit includes a first peak-to-peak communication module and a plurality of second peak-to-peak communication modules;
the first purple peak communication module is respectively connected with the receiving and decoding module and the data sending module;
and each second purple peak communication module is respectively connected with the corresponding adjusting mechanism and the sensor.
In the invention, the environmental data of each greenhouse is compared with the corresponding preset threshold value by using the FPGA, and then the corresponding control variable is calculated; and then adjusting the environment data of each greenhouse by using an adjusting mechanism corresponding to each greenhouse according to the control variable, so that the environment data of each greenhouse is the same as the corresponding preset threshold value. Therefore, the invention gets rid of manual regulation on the control of each greenhouse, and can simultaneously control a plurality of greenhouses in the same control period, thereby not only improving the control efficiency, but also improving the control precision.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a system configuration according to an embodiment of the present invention;
FIG. 2 is a control flow diagram according to an embodiment of the present invention;
FIG. 3 is an interface diagram of a display unit according to an embodiment of the present invention;
FIG. 4 is an interface diagram of an interaction unit in an embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, taking the simultaneous control of n greenhouses as an example:
the multi-greenhouse centralized control system provided by the embodiment comprises: an FPGA1, sets of adjustment mechanisms 2, a wireless communication unit 3, sets of sensors 4, a display unit 5 and an operating unit 6.
The FPGA1 includes: the device comprises a control module 1.1, a receiving and decoding module 1.2, a data sending module 1.3 and a storage module 1.4;
the control module 1.1 is used for comparing the environmental data of each greenhouse with a corresponding preset threshold value in the current control period and obtaining a corresponding control variable by using a proportional control algorithm;
each group of adjusting mechanisms 2 is arranged in the corresponding greenhouse and used for adjusting the environmental data of the corresponding greenhouse according to the control variable of each greenhouse in the current control period.
In this embodiment, the FPGA1 is used to compare the environmental data of each greenhouse with the corresponding preset threshold, and then calculate the corresponding control variables; and then adjusting the environment data of each greenhouse by using the adjusting mechanism 2 corresponding to each greenhouse according to the control variable, so that the environment data of each greenhouse is the same as the corresponding preset threshold value. Therefore, the control of each greenhouse is free from manual regulation, and a plurality of greenhouses can be controlled simultaneously in the same control period, so that the control efficiency is improved, and the control precision is also improved.
In the present embodiment, each set of adjustment mechanisms 2 includes: the device comprises an exhaust fan, an air supply fan, an irrigation system and a light supplementing system. The environmental data for each greenhouse included: greenhouse temperature T, greenhouse humidity H and soil humidity HT, and light intensity L, CO2 gas concentration CCO2, CH2O gas concentration CCH2O and greenhouse TVOC (total volatile organic compounds) values.
The receiving and decoding module 1.2 is configured to decode the environment data of each greenhouse transmitted by the wireless communication unit 3, and transmit the decoded environment data of each greenhouse to the control module 1.1.
And the data sending module 1.3 is used for transmitting the control variables of the greenhouses calculated by the control module 1.1 to the wireless communication unit 3.
The storage module 1.4 is used for storing the preset threshold values of all the greenhouses; the storage module 1.4 is a RAM.
The wireless communication unit 3 is used for transmitting the environment data of each greenhouse to the FPGA 1;
and transmitting the control variables of each greenhouse to the corresponding adjusting mechanism 2;
the wireless communication unit 3 comprises a first ZigBee communication module 3.1 and a plurality of second ZigBee communication modules 3.2;
the first purple peak communication module 3.1 is respectively connected with the receiving and decoding module 1.2 and the data sending module 1.3;
each second ZIP communication module 3.2 is connected to a corresponding adjustment mechanism 2 and sensor 4, respectively.
The plurality of groups of sensors 4 are used for periodically and correspondingly acquiring the environment data of each greenhouse and sending the acquired environment data of each greenhouse to the wireless communication unit 3.
In the present embodiment, each set of sensors 4 includes: temperature sensor, humidity sensor, illumination sensor and each gas sensor.
As shown in fig. 2, during the current control cycle:
firstly, initializing preset threshold values of all greenhouse environment variables stored in an FPGA (field programmable gate array), wherein the set values are stored in a specific RAM (random access memory) area in the FPGA;
then, carrying out data decoding on the received greenhouse environment data;
after decoding, calling each greenhouse environment data from the RAM to be compared with a corresponding preset threshold value, and calculating a corresponding deviation Error;
then, the deviation value is used for calculating the control variables required by the adjusting mechanism 2 in the greenhouse;
finally, the control variable is sent to the corresponding regulating organ 2, so that the environmental data of the corresponding greenhouse are regulated.
In a control period, the system described in this embodiment will complete one environmental adjustment process, and each adjustment process operates independently.
As shown in fig. 3, the display unit 5 is used for displaying the environmental data of each greenhouse and the working state of the adjusting mechanism 2 in the current control cycle.
In the present embodiment, the display unit 5 performs real-time refresh display of environmental data of each greenhouse. The display unit 5 will present the greenhouse data and the control variables to the controller in a clear way. The display unit 5 displays the currently received ecological environment parameters of each greenhouse, such as temperature, humidity, illumination intensity, CO2 concentration, TVOC, CH2O concentration, soil humidity, and the like, and simultaneously displays the working state of each regulator in the current greenhouse.
As shown in fig. 4, the operation unit 6 is configured to adjust the preset threshold value of each greenhouse, and input the preset threshold value of each greenhouse into the storage module 1.4;
and for controlling the operating state of the adjusting mechanism 2.
The display unit 5 and the operation unit 6 are realized by an HMI (human machine interface).
The operation unit 6 can provide the controller with an operation channel according to the display content of the display unit 5. The controller switches different greenhouses through buttons and can set various environmental data parameter values of the selected greenhouse. The parameter values set by the controller are stored in RAM of the FPGA1 and replace the original preset thresholds in RAM and are immediately validated.
The operating unit 6 can also support a manual mode, i.e. the operation of the regulating organ 2 of the respective greenhouse directly opened or closed by the controller of the skipping automatic control section.
If the greenhouse environment is regulated and controlled by adopting a common micro CPU (central processing unit) such as a single chip microcomputer, the automatic control task of a small amount of greenhouses can be solved, when a large amount of greenhouse environment data are faced, the processing and control period is obviously prolonged, and the irreproducible characteristic of single chip microcomputer control resources causes the influence on the original greenhouse control when new greenhouse control is added. The cost improvement brought by monitoring and controlling the greenhouse by using the workstation type host system is very high, and the economic benefit is not high. Therefore, in this embodiment, the FPGAs 1 are used to control the greenhouses, which not only improves the control efficiency, but also improves the control accuracy.
It should be understood that the specific order or hierarchy of steps in the processes disclosed is an example of exemplary approaches. Based upon design preferences, it is understood that the specific order or hierarchy of steps in the processes may be rearranged without departing from the scope of the present disclosure. The accompanying method claims present elements of the various steps in a sample order, and are not intended to be limited to the specific order or hierarchy presented.
In the foregoing detailed description, various features are grouped together in a single embodiment for the purpose of streamlining the disclosure. This method of disclosure is not to be interpreted as reflecting an intention that the claimed embodiments of the subject matter require more features than are expressly recited in each claim. Rather, as the following claims reflect, invention lies in less than all features of a single disclosed embodiment. Thus, the following claims are hereby expressly incorporated into the detailed description, with each claim standing on its own as a separate preferred embodiment of the invention.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. To those skilled in the art; various modifications to these embodiments will be readily apparent, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
What has been described above includes examples of one or more embodiments. It is, of course, not possible to describe every conceivable combination of components or methodologies for purposes of describing the aforementioned embodiments, but one of ordinary skill in the art may recognize that many further combinations and permutations of various embodiments are possible. Accordingly, the embodiments described herein are intended to embrace all such alterations, modifications and variations that fall within the scope of the appended claims. Furthermore, to the extent that the term "includes" is used in either the detailed description or the claims, such term is intended to be inclusive in a manner similar to the term "comprising" as "comprising" is interpreted when employed as a transitional word in a claim. Furthermore, any use of the term "or" in the specification of the claims is intended to mean a "non-exclusive or".
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A multi-greenhouse centralized control system, comprising: the system comprises an FPGA (1) and a plurality of groups of adjusting mechanisms (2);
the FPGA (1) comprises: a control module (1.1);
the control module (1.1) is used for comparing the environmental data of each greenhouse with a corresponding preset threshold value in the current control period and obtaining a corresponding control variable by using a proportional control algorithm;
and the adjusting mechanism (2) is arranged in the corresponding greenhouse and used for adjusting the environmental data of the corresponding greenhouse according to the control variable of each greenhouse in the current control period.
2. The multi-greenhouse centralized control system of claim 1, further comprising:
the wireless communication unit (3) is used for transmitting the environment data of each greenhouse to the FPGA (1);
and transmitting the control variables of the greenhouses to the corresponding regulating mechanisms (2).
3. A multi-greenhouse centralized control system according to claim 2, characterized in that the FPGA (1) further comprises:
and the receiving and decoding module (1.2) is used for decoding the environment data of each greenhouse transmitted by the wireless communication unit (3) and transmitting the decoded environment data of each greenhouse to the control module (1.1).
4. A multi-greenhouse centralized control system according to claim 3, characterized in that the FPGA (1) further comprises:
and the data sending module (1.3) is used for transmitting the control variable of each greenhouse calculated by the control module (1.1) to the wireless communication unit (3).
5. A multi-greenhouse centralized control system according to claim 4, characterized in that the FPGA (1) further comprises:
and the storage module (1.4) is used for storing the preset threshold values of the greenhouses.
6. The multi-greenhouse centralized control system of claim 5, further comprising:
and the multiple groups of sensors (4) are used for periodically and correspondingly acquiring the environment data of each greenhouse and transmitting the acquired environment data of each greenhouse to the wireless communication unit (3).
7. The multi-greenhouse centralized control system of claim 6, further comprising:
and the display unit (5) is used for displaying the environmental data of each greenhouse and the working state of the adjusting mechanism (2) in the current control period.
8. The multi-greenhouse centralized control system of claim 7, further comprising:
and the operation unit (6) is used for adjusting the preset threshold value of each greenhouse and inputting the preset threshold value of each greenhouse into the storage module (1.4).
9. A multi-greenhouse centralized control system according to claim 8, characterized in that the operating unit (6) is also used to control the operating state of the adjustment mechanism (2).
10. A multi-greenhouse centralized control system according to claim 6, characterized in that the wireless communication unit (3) comprises a first purple peak communication module (3.1) and a plurality of second purple peak communication modules (3.2);
the first purple peak communication module (3.1) is respectively connected with the receiving and decoding module (1.2) and the data sending module (1.3);
each second purple peak communication module (3.2) is respectively connected with a corresponding adjusting mechanism (2) and a sensor (4).
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| CN202010197655.8A CN111258284A (en) | 2020-03-19 | 2020-03-19 | Multi-greenhouse centralized control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115220493A (en) * | 2022-08-30 | 2022-10-21 | 西北农林科技大学 | Agricultural intelligent greenhouse and internal environment regulation and control system thereof |
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