CN112631356A - Intelligent ventilation method and system for grain depot - Google Patents
Intelligent ventilation method and system for grain depot Download PDFInfo
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- CN112631356A CN112631356A CN202011478489.5A CN202011478489A CN112631356A CN 112631356 A CN112631356 A CN 112631356A CN 202011478489 A CN202011478489 A CN 202011478489A CN 112631356 A CN112631356 A CN 112631356A
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Abstract
The invention discloses an intelligent ventilation method and an intelligent ventilation system for a grain depot, which comprise the following steps: acquiring temperature and humidity data of the granary, temperature and humidity data of each grain pile in the granary and environment data in real time by using different types of sensors; the analysis equipment compares the temperature and humidity data of the granary, the temperature and humidity data of each grain pile and the environmental data with preset ventilation rules of different types, determines the position information of the granary or the grain pile needing ventilation, and determines ventilation early warning information to the control terminal according to the position information of the granary or the grain pile needing ventilation and the type of the at least one ventilation rule which is met; after a ventilation confirmation instruction sent by the control terminal is received, selecting a matched ventilation scheme from a ventilation knowledge base according to the type of the ventilation early warning message, and sending the selected matched ventilation scheme to the control terminal; and when the matched ventilation scheme is executed after the confirmation sent by the control terminal is received, ventilating the granary or the grain pile needing to be ventilated.
Description
Technical Field
The invention relates to the technical field of grain depot management, in particular to an intelligent grain depot ventilation method and system.
Background
The grain storage in China has the characteristics of large storage capacity, long storage period and the like, and the accurate operation management and intelligent control of the grain depot is the key for realizing the macroscopic regulation and control of the grain and maintaining the national grain safety. In the grain storage process, in order to reduce the loss of the quality and quantity of grains and control the quality deterioration of the grains, the environment in the granary needs to be adjusted in real time according to the change of the grain situation. The intelligent grain storage ventilation technology is characterized in that a sensor and a computer are used for collecting and monitoring grain condition information in real time, the opening and closing of a ventilation opening, a ventilation window and various ventilation facilities are controlled according to factors such as the ventilation purpose, the stored grain seeds, the states of ventilation equipment and facilities and the like, and the ventilation of a granary is carried out according to a corresponding intelligent ventilation strategy, so that the intelligent and scientific management of grain storage ventilation is realized.
However, since the intelligent ventilation is limited by the current detection method and the shortage of grain depot infrastructure, complete intelligent ventilation is difficult to achieve, and therefore, an intelligent ventilation method for the grain depot, which combines an intelligent ventilation strategy with personnel operation and is complementary with automatic control and manual judgment, is needed.
Disclosure of Invention
The invention provides an intelligent ventilation method and system for a grain depot, and aims to solve the problem of how to realize the intelligent ventilation of the grain depot.
In order to solve the above problems, according to an aspect of the present invention, there is provided a grain depot intelligent ventilation method, comprising:
the method comprises the following steps of acquiring temperature and humidity data of a granary, temperature and humidity data of each grain pile in the granary and environment data in real time by using different types of sensors, and sending the temperature and humidity data of the granary, the temperature and humidity data of each grain pile and the environment data to an analysis device;
the analysis equipment compares the temperature and humidity data of the granary, the temperature and humidity data of each grain pile and the environment data with preset ventilation rules of different types, when the temperature and humidity data of the granary or a certain grain pile are determined to meet at least one ventilation rule, the position information of the granary or the grain pile needing ventilation is determined, and a ventilation early warning message is determined to be sent to the control terminal according to the position information of the granary or the grain pile needing ventilation and the type of the at least one ventilation rule meeting the ventilation rule, so that a relevant responsible party is notified;
after a ventilation confirmation instruction sent by the control terminal is received, selecting a matched ventilation scheme from a ventilation knowledge base according to the type of the ventilation early warning message, and sending the selected matched ventilation scheme to the control terminal;
and when the matched ventilation scheme is executed after the confirmation sent by the control terminal is received, ventilating the granary or the grain pile needing to be ventilated.
Preferably, wherein the different types of ventilation rules comprise: cooling and ventilation rules, precipitation and ventilation rules, conditioning and ventilation rules and/or heat accumulation and ventilation rules in the row bins.
Preferably, the cooling and ventilating rules include: when the grain moisture is higher than a preset grain storage safe moisture threshold, if the difference between the average temperature of the grain pile and the temperature outside the warehouse is not less than a preset temperature difference threshold; if the humidity condition meets the condition that the equilibrium absolute humidity of the grains at the instant grain temperature is greater than the instant atmospheric absolute humidity or the equilibrium relative humidity of the grain pile is greater than the relative humidity of the air at the grain pile temperature, the cooling and ventilation rules are determined to be met;
the precipitation ventilation rule comprises: when the grain pile temperature is higher than the atmospheric dew point temperature and the humidity condition meets the atmospheric absolute humidity which is lower than the moisture value of the grain after the moisture is reduced by a first preset percentage and the balance absolute humidity obtained by checking the instant atmospheric temperature value, determining that the precipitation and ventilation rules are met;
the conditioning ventilation rule comprises: if the temperature condition is that the average temperature of the grain pile is higher than the atmospheric dew point temperature, and the maximum temperature of the ventilated grain pile does not exceed the safe storage temperature of the grains after the moisture is added; and the humidity condition is that the instant atmospheric absolute humidity is larger than the equilibrium absolute humidity found by the moisture value of the grain after the moisture is increased by the second preset percentage and the instant atmospheric temperature value, and then the modulation ventilation rule is determined to be satisfied;
arrange storehouse interior accumulated heat ventilation rule, include: and if the temperature difference between the air temperature and the granary is larger than a preset second temperature difference threshold value and the current time is night, determining that the parameter-arranging internal heat accumulation ventilation rule is met.
Preferably, wherein the method further comprises:
and when receiving the ventilation scheme modified by the related responsible party sent by the control terminal, ventilating according to the modified ventilation scheme, and storing the modified ventilation scheme into the knowledge base.
Preferably, wherein the method further comprises:
the passing job information is recorded in real time, and when the execution condition of the ventilation scheme is changed, the execution of the ventilation scheme is stopped.
According to another aspect of the present invention, there is provided a grain depot intelligent ventilation system, the system comprising:
the system comprises a data acquisition unit, an analysis device and a control unit, wherein the data acquisition unit is used for acquiring temperature and humidity data of the granary, temperature and humidity data of each grain pile in the granary and environment data in real time by using different types of sensors, and sending the temperature and humidity data of the granary, the temperature and humidity data of each grain pile and the environment data to the analysis device;
the ventilation rule judging unit is used for enabling the analysis equipment to compare the temperature and humidity data of the granaries, the temperature and humidity data of each grain pile and the environment data with preset ventilation rules of different types, when the temperature and humidity data of the granaries or a certain grain pile are determined to meet at least one ventilation rule, the position information of the granaries or the grain piles needing ventilation is determined, and a ventilation early warning message is determined to be sent to the control terminal according to the position information of the granaries or the grain piles needing ventilation and the type of the at least one ventilation rule meeting the ventilation rule, so that a relevant responsible party is notified;
the ventilation scheme determining unit is used for selecting a matched ventilation scheme from a ventilation knowledge base according to the type of the ventilation early warning message after receiving a ventilation confirmation instruction sent by the control terminal, and sending the selected matched ventilation scheme to the control terminal;
and the ventilation unit is used for ventilating the granary or the grain pile to be ventilated when receiving the confirmation sent by the control terminal to execute the matched ventilation scheme.
Preferably, wherein the different types of ventilation rules comprise: cooling and ventilation rules, precipitation and ventilation rules, conditioning and ventilation rules and/or heat accumulation and ventilation rules in the row bins.
Preferably, the cooling and ventilating rules include: when the grain moisture is higher than a preset grain storage safe moisture threshold, if the difference between the average temperature of the grain pile and the temperature outside the warehouse is not less than a preset temperature difference threshold; if the humidity condition meets the condition that the equilibrium absolute humidity of the grains at the instant grain temperature is greater than the instant atmospheric absolute humidity or the equilibrium relative humidity of the grain pile is greater than the relative humidity of the air at the grain pile temperature, the cooling and ventilation rules are determined to be met;
the precipitation ventilation rule comprises: when the grain pile temperature is higher than the atmospheric dew point temperature and the humidity condition meets the atmospheric absolute humidity which is lower than the moisture value of the grain after the moisture is reduced by a first preset percentage and the balance absolute humidity obtained by checking the instant atmospheric temperature value, determining that the precipitation and ventilation rules are met;
the conditioning ventilation rule comprises: if the temperature condition is that the average temperature of the grain pile is higher than the atmospheric dew point temperature, and the maximum temperature of the ventilated grain pile does not exceed the safe storage temperature of the grains after the moisture is added; and the humidity condition is that the instant atmospheric absolute humidity is larger than the equilibrium absolute humidity found by the moisture value of the grain after the moisture is increased by the second preset percentage and the instant atmospheric temperature value, and then the modulation ventilation rule is determined to be satisfied;
arrange storehouse interior accumulated heat ventilation rule, include: and if the temperature difference between the air temperature and the granary is larger than a preset second temperature difference threshold value and the current time is night, determining that the parameter-arranging internal heat accumulation ventilation rule is met.
Preferably, wherein the system further comprises:
and the ventilation scheme storage unit is used for carrying out ventilation according to the modified ventilation scheme and storing the modified ventilation scheme into the knowledge base when receiving the ventilation scheme modified by the related responsible party sent by the control terminal.
Preferably, wherein the system further comprises:
and a ventilation job recording unit for recording the passing job information in real time and stopping the execution of the ventilation scheme when the execution condition of the ventilation scheme is changed.
The invention provides an intelligent ventilation method and system for a grain depot, which comprehensively consider a plurality of factors such as grain bulk temperature, grain storage moisture, atmospheric temperature and humidity, grain species and the like, determine a proper ventilation rule, give an optimal grain situation processing scheme and report the scheme to related personnel, and the related personnel adjust the scheme according to information and then execute the scheme; putting the executed scheme into a knowledge base so that the scheme can be referenced later for similar cases; the link of manual confirmation is added in front of automatic control, so that safety accidents or grain storage accidents caused by insufficient comprehensive grain situation information parameters, inaccurate operation information and limitation of infrastructure are avoided, the optimal scheme is really used for regulation and control, and the grain quality is guaranteed.
Drawings
A more complete understanding of exemplary embodiments of the present invention may be had by reference to the following drawings in which:
fig. 1 is a flow chart of a grain depot intelligent ventilation method 100 according to an embodiment of the invention;
fig. 2 is a schematic structural diagram of an intelligent ventilation system 200 for grain depot according to an embodiment of the invention.
Detailed Description
The exemplary embodiments of the present invention will now be described with reference to the accompanying drawings, however, the present invention may be embodied in many different forms and is not limited to the embodiments described herein, which are provided for complete and complete disclosure of the present invention and to fully convey the scope of the present invention to those skilled in the art. The terminology used in the exemplary embodiments illustrated in the accompanying drawings is not intended to be limiting of the invention. In the drawings, the same units/elements are denoted by the same reference numerals.
Unless otherwise defined, terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Further, it will be understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense.
Fig. 1 is a flowchart of an intelligent ventilation method 100 for a grain depot according to an embodiment of the invention. As shown in fig. 1, in the intelligent ventilation method for the grain depot provided by the embodiment of the invention, a plurality of factors such as grain bulk temperature, stored grain moisture, atmospheric temperature and humidity, grain species and the like are comprehensively considered, a proper ventilation rule is determined, an optimal grain condition processing scheme is given and reported to related personnel, and the related personnel adjust the scheme according to information and then execute the scheme; putting the executed scheme into a knowledge base so that the scheme can be referenced later for similar cases; the link of manual confirmation is added in front of automatic control, so that safety accidents or grain storage accidents caused by insufficient comprehensive grain situation information parameters, inaccurate operation information and limitation of infrastructure are avoided, the optimal scheme is really used for regulation and control, and the grain quality is guaranteed. The grain depot intelligent ventilation method 100 provided by the embodiment of the invention starts from step 101, collects temperature and humidity data of a grain depot, temperature and humidity data of each grain pile in the grain depot and environment data in real time by using different types of sensors in step 101, and sends the temperature and humidity data of the grain depot, the temperature and humidity data of each grain pile and the environment data to an analysis device.
In step 102, the analysis equipment compares the temperature and humidity data of the granary, the temperature and humidity data of each grain pile and the environmental data with preset ventilation rules of different types, when the temperature and humidity data of the granary or a certain grain pile are determined to meet at least one ventilation rule, the position information of the granary or the grain pile needing ventilation is determined, and a ventilation early warning message is determined to be sent to the control terminal according to the position information of the granary or the grain pile needing ventilation and the type of the at least one ventilation rule meeting the ventilation rule, so that a relevant responsible party is notified.
Preferably, wherein the different types of ventilation rules comprise: cooling and ventilation rules, precipitation and ventilation rules, conditioning and ventilation rules and/or heat accumulation and ventilation rules in the row bins.
Preferably, the cooling and ventilating rules include: when the grain moisture is higher than a preset grain storage safe moisture threshold, if the difference between the average temperature of the grain pile and the temperature outside the warehouse is not less than a preset temperature difference threshold; if the humidity condition meets the condition that the equilibrium absolute humidity of the grains at the instant grain temperature is greater than the instant atmospheric absolute humidity or the equilibrium relative humidity of the grain pile is greater than the relative humidity of the air at the grain pile temperature, the cooling and ventilation rules are determined to be met;
the precipitation ventilation rule comprises: when the grain pile temperature is higher than the atmospheric dew point temperature and the humidity condition meets the atmospheric absolute humidity which is lower than the moisture value of the grain after the moisture is reduced by a first preset percentage and the balance absolute humidity obtained by checking the instant atmospheric temperature value, determining that the precipitation and ventilation rules are met;
the conditioning ventilation rule comprises: if the temperature condition is that the average temperature of the grain pile is higher than the atmospheric dew point temperature, and the maximum temperature of the ventilated grain pile does not exceed the safe storage temperature of the grains after the moisture is added; and the humidity condition is that the instant atmospheric absolute humidity is larger than the equilibrium absolute humidity found by the moisture value of the grain after the moisture is increased by the second preset percentage and the instant atmospheric temperature value, and then the modulation ventilation rule is determined to be satisfied;
arrange storehouse interior accumulated heat ventilation rule, include: and if the temperature difference between the air temperature and the granary is larger than a preset second temperature difference threshold value and the current time is night, determining that the parameter-arranging internal heat accumulation ventilation rule is met.
The method of the invention is realized based on a grain depot management system, and the grain depot management system comprises: the system has the functions of early warning condition setting, early warning condition detection, ventilation early warning confirmation, a ventilation scheme knowledge base, ventilation operation information, warehouse equipment control, control information tracing and the like.
According to the ventilation of the functions of cooling and ventilation, precipitation and ventilation, tempering and ventilation, heat accumulation in the discharging bin and the like, the invention performs the prefabricated regulation according to expert knowledge. Meanwhile, the function of making rules according to various parameter information of grain conditions and various parameters of meteorological conditions is provided for special conditions of each grain depot.
Wherein, for the cooling and ventilation rules, the ventilation and cooling are carried out under certain temperature and humidity conditions, wherein when the grain moisture is higher than the safe moisture of local grain storage, the starting condition of ventilation is that the difference between the average temperature of a grain pile and the temperature outside the warehouse is not less than 8 ℃, and the temperature in subtropical regions is 6 ℃; the humidity condition is such that the equilibrium absolute humidity of the grain at the instant grain temperature is greater than the absolute humidity of the instant atmosphere, or the equilibrium relative humidity of the grain pile is greater than the relative humidity of the air at the grain pile temperature.
For the precipitation and ventilation rule, the temperature condition for allowing precipitation and ventilation needs to meet the condition that the average temperature of the grain pile is greater than the dew point temperature of the atmosphere, and the humidity condition needs to meet the condition that the absolute humidity of the atmosphere is smaller than the balance absolute humidity obtained by checking the moisture value of the grain after the moisture is reduced by one percentage point and the instant atmospheric temperature value.
For the conditioning ventilation rule, the temperature condition allowing conditioning ventilation is that the average temperature of the grain pile is greater than the atmospheric dew point temperature, and the maximum temperature of the ventilated grain pile does not exceed the safe storage temperature of the grain after moisture is added; the humidity condition of conditioning ventilation is the equilibrium absolute humidity which is found by the moisture value and the instant atmospheric temperature value after the instant atmospheric absolute humidity is larger than the moisture of the grain and the moisture of the grain is increased by 2.5 percentage points.
For the heat accumulation and ventilation rule in the granary, the heat accumulation and ventilation are suitable for being carried out at night when the temperature and the temperature difference between the granary is more than 2 ℃.
In the invention, corresponding ventilation rules are formulated according to various parameters of grain conditions, such as bin temperature, bin humidity, highest temperature, lowest temperature and average temperature, and various parameters of meteorological conditions, such as air temperature, humidity, wind direction, wind power and air pressure.
Then, whether the early warning condition is achieved or not is mainly achieved through grain condition detection and grain condition analysis. The grain condition detection mainly depends on a grain condition sensor to collect grain piles, grain bins, atmospheric temperature and humidity, grain storage pests and microorganism information, and data are uploaded to a main control computer through equipment such as a measurement and control extension set, a deconcentrator and the like; the grain condition analysis is to analyze whether the condition of needing ventilation is met by inducing the grain temperature, the bin temperature and the climate change rule of the local area according to historical detection data. And if the condition is met, sending out a ventilation early warning notice.
In step 103, after receiving the ventilation confirmation instruction sent by the control terminal, selecting a matching ventilation scheme from a ventilation knowledge base according to the type of the ventilation early warning message, and sending the selected matching ventilation scheme to the control terminal.
And 104, ventilating the granary or the grain pile to be ventilated when receiving the ventilation scheme which is sent by the control terminal and confirms to execute the matching.
Preferably, wherein the method further comprises:
and when receiving the ventilation scheme modified by the related responsible party sent by the control terminal, ventilating according to the modified ventilation scheme, and storing the modified ventilation scheme into the knowledge base.
Preferably, wherein the method further comprises:
the passing job information is recorded in real time, and when the execution condition of the ventilation scheme is changed, the execution of the ventilation scheme is stopped.
In the present invention, confirmation of the ventilation warning is required. And after the condition of the ventilation rule is met, a ventilation early warning notice is sent to related responsible personnel. The person in charge confirms whether ventilation is to be performed and how ventilation is to be performed. The system will provide pre-manufactured solutions (e.g., natural ventilation, mechanical ventilation, etc.) to the customer, who can adjust the solutions as desired. The adjusted scheme is recorded in a knowledge base for subsequent use by a client. The ventilation scheme knowledge base stores ventilation conditions and executed schemes, can acquire knowledge, revise and supplement the knowledge in a man-machine interaction and system self-learning mode, finally has various data and experience knowledge related to mechanical ventilation and grain storage safety, and establishes a corresponding database and a corresponding model base.
And after the ventilation scheme is determined, performing ventilation operation and recording information. The ventilation work information is an execution record of executing the ventilation scheme. It is possible to see which schemes are currently executing and how effective the schemes are executing. If the execution conditions of the ventilation scheme change, the execution of the scheme may be stopped here.
The invention can also realize warehouse equipment control and control information tracing. And controlling corresponding warehouse equipment according to the content of the ventilation scheme, and recording the control operation for later-stage tracing. And meanwhile, collecting grain conditions and weather conditions according to a scheme, and recording the grain conditions and the weather conditions into ventilation operation information as a record of the ventilation effect.
The ventilation method of the present invention has significant advantages over conventional ventilation systems. The traditional mechanical ventilation technology is widely applied as a necessary means for guaranteeing the grain storage safety, but the judgment of the ventilation condition requires a manual judgment process to be more complicated, the actual operation is often completed by depending on experience, certain subjectivity exists, and the phenomena of ineffective ventilation, low-efficiency ventilation and even harmful ventilation are easily caused. The general intelligent ventilation system is limited by the current detection method and the shortage of grain depot infrastructure, and the like, so that the practical application of the intelligent ventilation technology has many problems to be solved. The intelligent ventilation strategy management system combines intelligent ventilation and manual judgment, can avoid the problem of misjudgment caused by instability of various parameters, and can also avoid the safety problem caused by untimely information update. Through constantly perfecting the ventilation scheme knowledge base, the grain condition analysis technology and the knowledge base system can be more integrated, so that the given scheme is closer to reality and is more practical and efficient.
Fig. 2 is a schematic structural diagram of an intelligent ventilation system 200 for grain depot according to an embodiment of the invention. As shown in fig. 2, the grain depot intelligent ventilation system 200 provided by the embodiment of the present invention includes: a data acquisition unit 201, a ventilation rule judgment unit 202, a ventilation scheme determination unit 203, and a ventilation unit 204.
Preferably, the data acquisition unit 201 is configured to acquire temperature and humidity data of a granary, temperature and humidity data of each grain pile in the granary, and environmental data in real time by using different types of sensors, and send the temperature and humidity data of the granary, the temperature and humidity data of each grain pile, and the environmental data to the analysis device.
Preferably, the ventilation rule determining unit 202 is configured to enable an analysis device to compare the temperature and humidity data of the grain bin, the temperature and humidity data of each grain pile and the environment data with preset ventilation rules of different types, determine the position information of the grain bin or the grain pile to be ventilated when it is determined that the temperature and humidity data of the grain bin or a certain grain pile meet at least one ventilation rule, and determine a ventilation warning message to the control terminal according to the position information of the grain bin or the grain pile to be ventilated and the type of the at least one ventilation rule met, so as to notify a relevant responsible party.
Preferably, wherein the different types of ventilation rules comprise: cooling and ventilation rules, precipitation and ventilation rules, conditioning and ventilation rules and/or heat accumulation and ventilation rules in the row bins.
Preferably, the cooling and ventilating rules include: when the grain moisture is higher than a preset grain storage safe moisture threshold, if the difference between the average temperature of the grain pile and the temperature outside the warehouse is not less than a preset temperature difference threshold; if the humidity condition meets the condition that the equilibrium absolute humidity of the grains at the instant grain temperature is greater than the instant atmospheric absolute humidity or the equilibrium relative humidity of the grain pile is greater than the relative humidity of the air at the grain pile temperature, the cooling and ventilation rules are determined to be met;
the precipitation ventilation rule comprises: when the grain pile temperature is higher than the atmospheric dew point temperature and the humidity condition meets the atmospheric absolute humidity which is lower than the moisture value of the grain after the moisture is reduced by a first preset percentage and the balance absolute humidity obtained by checking the instant atmospheric temperature value, determining that the precipitation and ventilation rules are met;
the conditioning ventilation rule comprises: if the temperature condition is that the average temperature of the grain pile is higher than the atmospheric dew point temperature, and the maximum temperature of the ventilated grain pile does not exceed the safe storage temperature of the grains after the moisture is added; and the humidity condition is that the instant atmospheric absolute humidity is larger than the equilibrium absolute humidity found by the moisture value of the grain after the moisture is increased by the second preset percentage and the instant atmospheric temperature value, and then the modulation ventilation rule is determined to be satisfied;
arrange storehouse interior accumulated heat ventilation rule, include: and if the temperature difference between the air temperature and the granary is larger than a preset second temperature difference threshold value and the current time is night, determining that the parameter-arranging internal heat accumulation ventilation rule is met.
Preferably, the ventilation scheme determining unit 203 is configured to select a matching ventilation scheme from a ventilation knowledge base according to the type of the ventilation early warning message after receiving a ventilation confirmation instruction sent by the control terminal, and send the selected matching ventilation scheme to the control terminal.
Preferably, the ventilation unit 204 is configured to ventilate the granary or grain bulk to be ventilated when receiving the confirmation sent by the control terminal to execute the matched ventilation scheme.
Preferably, wherein the system further comprises:
and the ventilation scheme storage unit is used for carrying out ventilation according to the modified ventilation scheme and storing the modified ventilation scheme into the knowledge base when receiving the ventilation scheme modified by the related responsible party sent by the control terminal.
Preferably, wherein the system further comprises:
and a ventilation job recording unit for recording the passing job information in real time and stopping the execution of the ventilation scheme when the execution condition of the ventilation scheme is changed.
The grain depot intelligent ventilation system 200 of the embodiment of the invention corresponds to the grain depot intelligent ventilation method 100 of another embodiment of the invention, and is not described herein again.
The invention has been described with reference to a few embodiments. However, other embodiments of the invention than the one disclosed above are equally possible within the scope of the invention, as would be apparent to a person skilled in the art from the appended patent claims.
Generally, all terms used in the claims are to be interpreted according to their ordinary meaning in the technical field, unless explicitly defined otherwise herein. All references to "a/an/the [ device, component, etc ]" are to be interpreted openly as referring to at least one instance of said device, component, etc., unless explicitly stated otherwise. The steps of any method disclosed herein do not have to be performed in the exact order disclosed, unless explicitly stated.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.
Claims (10)
1. An intelligent grain depot ventilation method is characterized by comprising the following steps:
the method comprises the following steps of acquiring temperature and humidity data of a granary, temperature and humidity data of each grain pile in the granary and environment data in real time by using different types of sensors, and sending the temperature and humidity data of the granary, the temperature and humidity data of each grain pile and the environment data to an analysis device;
the analysis equipment compares the temperature and humidity data of the granary, the temperature and humidity data of each grain pile and the environment data with preset ventilation rules of different types, when the temperature and humidity data of the granary or a certain grain pile are determined to meet at least one ventilation rule, the position information of the granary or the grain pile needing ventilation is determined, and a ventilation early warning message is determined to be sent to the control terminal according to the position information of the granary or the grain pile needing ventilation and the type of the at least one ventilation rule meeting the ventilation rule, so that a relevant responsible party is notified;
after a ventilation confirmation instruction sent by the control terminal is received, selecting a matched ventilation scheme from a ventilation knowledge base according to the type of the ventilation early warning message, and sending the selected matched ventilation scheme to the control terminal;
and when the matched ventilation scheme is executed after the confirmation sent by the control terminal is received, ventilating the granary or the grain pile needing to be ventilated.
2. The method of claim 1, wherein the different types of ventilation rules comprise: cooling and ventilation rules, precipitation and ventilation rules, conditioning and ventilation rules and/or heat accumulation and ventilation rules in the row bins.
3. The method of claim 2, wherein the cooling ventilation rule comprises: when the grain moisture is higher than a preset grain storage safe moisture threshold, if the difference between the average temperature of the grain pile and the temperature outside the warehouse is not less than a preset temperature difference threshold; if the humidity condition meets the condition that the equilibrium absolute humidity of the grains at the instant grain temperature is greater than the instant atmospheric absolute humidity or the equilibrium relative humidity of the grain pile is greater than the relative humidity of the air at the grain pile temperature, the cooling and ventilation rules are determined to be met;
the precipitation ventilation rule comprises: when the grain pile temperature is higher than the atmospheric dew point temperature and the humidity condition meets the atmospheric absolute humidity which is lower than the moisture value of the grain after the moisture is reduced by a first preset percentage and the balance absolute humidity obtained by checking the instant atmospheric temperature value, determining that the precipitation and ventilation rules are met;
the conditioning ventilation rule comprises: if the temperature condition is that the average temperature of the grain pile is higher than the atmospheric dew point temperature, and the maximum temperature of the ventilated grain pile does not exceed the safe storage temperature of the grains after the moisture is added; and the humidity condition is that the instant atmospheric absolute humidity is larger than the equilibrium absolute humidity found by the moisture value of the grain after the moisture is increased by the second preset percentage and the instant atmospheric temperature value, and then the modulation ventilation rule is determined to be satisfied;
arrange storehouse interior accumulated heat ventilation rule, include: and if the temperature difference between the air temperature and the granary is larger than a preset second temperature difference threshold value and the current time is night, determining that the parameter-arranging internal heat accumulation ventilation rule is met.
4. The method of claim 1, further comprising:
and when receiving the ventilation scheme modified by the related responsible party sent by the control terminal, ventilating according to the modified ventilation scheme, and storing the modified ventilation scheme into the knowledge base.
5. The method of claim 1, further comprising:
the passing job information is recorded in real time, and when the execution condition of the ventilation scheme is changed, the execution of the ventilation scheme is stopped.
6. The intelligent ventilation system for the grain depot is characterized by comprising:
the system comprises a data acquisition unit, an analysis device and a control unit, wherein the data acquisition unit is used for acquiring temperature and humidity data of the granary, temperature and humidity data of each grain pile in the granary and environment data in real time by using different types of sensors, and sending the temperature and humidity data of the granary, the temperature and humidity data of each grain pile and the environment data to the analysis device;
the ventilation rule judging unit is used for enabling the analysis equipment to compare the temperature and humidity data of the granaries, the temperature and humidity data of each grain pile and the environment data with preset ventilation rules of different types, when the temperature and humidity data of the granaries or a certain grain pile are determined to meet at least one ventilation rule, the position information of the granaries or the grain piles needing ventilation is determined, and a ventilation early warning message is determined to be sent to the control terminal according to the position information of the granaries or the grain piles needing ventilation and the type of the at least one ventilation rule meeting the ventilation rule, so that a relevant responsible party is notified;
the ventilation scheme determining unit is used for selecting a matched ventilation scheme from a ventilation knowledge base according to the type of the ventilation early warning message after receiving a ventilation confirmation instruction sent by the control terminal, and sending the selected matched ventilation scheme to the control terminal;
and the ventilation unit is used for ventilating the granary or the grain pile to be ventilated when receiving the confirmation sent by the control terminal to execute the matched ventilation scheme.
7. The system of claim 6, wherein the different types of ventilation rules comprise: cooling and ventilation rules, precipitation and ventilation rules, conditioning and ventilation rules and/or heat accumulation and ventilation rules in the row bins.
8. The system of claim 7, wherein the cooling and ventilation rules comprise: when the grain moisture is higher than a preset grain storage safe moisture threshold, if the difference between the average temperature of the grain pile and the temperature outside the warehouse is not less than a preset temperature difference threshold; if the humidity condition meets the condition that the equilibrium absolute humidity of the grains at the instant grain temperature is greater than the instant atmospheric absolute humidity or the equilibrium relative humidity of the grain pile is greater than the relative humidity of the air at the grain pile temperature, the cooling and ventilation rules are determined to be met;
the precipitation ventilation rule comprises: when the grain pile temperature is higher than the atmospheric dew point temperature and the humidity condition meets the atmospheric absolute humidity which is lower than the moisture value of the grain after the moisture is reduced by a first preset percentage and the balance absolute humidity obtained by checking the instant atmospheric temperature value, determining that the precipitation and ventilation rules are met;
the conditioning ventilation rule comprises: if the temperature condition is that the average temperature of the grain pile is higher than the atmospheric dew point temperature, and the maximum temperature of the ventilated grain pile does not exceed the safe storage temperature of the grains after the moisture is added; and the humidity condition is that the instant atmospheric absolute humidity is larger than the equilibrium absolute humidity found by the moisture value of the grain after the moisture is increased by the second preset percentage and the instant atmospheric temperature value, and then the modulation ventilation rule is determined to be satisfied;
arrange storehouse interior accumulated heat ventilation rule, include: and if the temperature difference between the air temperature and the granary is larger than a preset second temperature difference threshold value and the current time is night, determining that the parameter-arranging internal heat accumulation ventilation rule is met.
9. The system of claim 6, further comprising:
and the ventilation scheme storage unit is used for carrying out ventilation according to the modified ventilation scheme and storing the modified ventilation scheme into the knowledge base when receiving the ventilation scheme modified by the related responsible party sent by the control terminal.
10. The system of claim 6, further comprising:
and a ventilation job recording unit for recording the passing job information in real time and stopping the execution of the ventilation scheme when the execution condition of the ventilation scheme is changed.
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