CN112148045B - Glass greenhouse temperature control method and device, electronic equipment and readable storage medium - Google Patents
Glass greenhouse temperature control method and device, electronic equipment and readable storage medium Download PDFInfo
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- CN112148045B CN112148045B CN202011024369.8A CN202011024369A CN112148045B CN 112148045 B CN112148045 B CN 112148045B CN 202011024369 A CN202011024369 A CN 202011024369A CN 112148045 B CN112148045 B CN 112148045B
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- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
- G05D23/24—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor
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Abstract
The application relates to a glass greenhouse temperature control method, a device, electronic equipment and a readable storage medium, belonging to the technical field of greenhouse temperature control and used for solving the problem of hysteresis of a temperature control system in the related technology.
Description
Technical Field
The present disclosure relates to the field of greenhouse temperature control, and more particularly, to a method and an apparatus for controlling a glass greenhouse temperature, an electronic device and a readable storage medium.
Background
The traditional greenhouse temperature control system generally adopts a PID (proportion integration differentiation) regulation mechanism, namely the greenhouse temperature control system can regulate the indoor temperature of the greenhouse after the indoor temperature of the greenhouse exceeds a target temperature range, and the time lag can cause the indoor temperature of the greenhouse to exceed the target temperature range suitable for crop growth and influence the crop growth in the greenhouse.
Disclosure of Invention
In order to facilitate the greenhouse temperature to be stable in a target temperature range suitable for crop growth, the embodiment of the application discloses a glass greenhouse temperature control method, a device, electronic equipment and a readable storage medium.
In a first aspect, the embodiment of the application discloses a glass greenhouse temperature control method. The method comprises the following steps:
acquiring outdoor temperature information, indoor temperature information and a target temperature range;
generating a periodic temperature control scheme according to the outdoor temperature information and the target temperature range; the periodic temperature control scheme comprises temperature control speed, temperature control time and temperature control frequency; when the indoor temperature is in the target temperature range, the temperature control scheme can balance the influence of the outdoor temperature on the indoor temperature, so that the indoor temperature is dynamically stabilized in the target temperature range;
adjusting the periodic temperature control scheme according to the indoor temperature information and the target temperature range; under the temperature control scheme, the speed of the change of the indoor temperature to the target temperature range is accelerated.
Through above technical scheme, because the periodic temperature control scheme is confirmed according to outdoor temperature and target temperature scope, if the indoor temperature is in the target temperature scope, then the periodic temperature control scheme can be better with indoor temperature stable at the target temperature scope, if the indoor temperature surpasses the target temperature scope, under the periodic temperature control scheme, indoor temperature itself can change towards the target temperature scope, periodic temperature control scheme still according to indoor temperature and target temperature scope in addition some adjustments for the speed that indoor temperature changes towards the target temperature scope. The method adopts a temperature pre-adjustment mechanism determined according to the steady state condition, well overcomes the time lag existing in the traditional PID adjustment mechanism, can enable the indoor temperature to be well stabilized in the target temperature range suitable for the growth of crops, and is beneficial to the growth of the crops.
Preferably, the method for generating the periodic temperature control scheme according to the outdoor temperature information and the target temperature range includes:
determining steady state difference value information according to the outdoor temperature information and the target temperature range; the steady state difference value information is the magnitude and the direction of the outdoor temperature exceeding the target temperature range;
determining steady-state speed information according to the steady-state difference information; the steady state speed information is the change speed of the indoor temperature under the influence of the outdoor temperature when the indoor temperature is in the target temperature range;
and generating the periodic temperature control scheme according to the steady-state speed information.
Preferably, the method for adjusting the periodic temperature control scheme according to the indoor temperature information and the target temperature range includes:
determining actual difference value information according to the indoor temperature information and the target temperature range; the actual difference information is the size and the direction of the indoor temperature exceeding the target temperature range;
determining temperature control variable information according to the actual difference information; the temperature control variable information is a temperature variable required by the indoor temperature to change to a target temperature range;
adjusting the periodic temperature control scheme according to the temperature control variable information; each cycle of the periodic temperature control scheme is also used to implement a temperature control variable at a preset ratio.
Preferably, the method further comprises:
acquiring indoor illumination intensity information;
generating photo-thermal speed information according to the indoor illumination intensity information; the photo-thermal speed information is the temperature rise speed of the indoor temperature under the indoor illumination intensity;
and adjusting the periodic temperature control scheme according to the photo-thermal speed information.
In a second aspect, the embodiment of the application discloses a glass greenhouse temperature control device. The device includes:
the data acquisition module is used for acquiring outdoor temperature information, indoor temperature information and a target temperature range;
the scheme generation module is used for generating a periodic temperature control scheme according to the outdoor temperature information and the target temperature range; the periodic temperature control scheme comprises temperature control speed, temperature control time and temperature control frequency; when the indoor temperature is in the target temperature range, the temperature control scheme can balance the influence of the outdoor temperature on the indoor temperature, so that the indoor temperature is dynamically stabilized in the target temperature range;
the scheme adjusting module is used for adjusting the periodic temperature control scheme according to the indoor temperature information and the target temperature range; under the temperature control scheme, the speed of the change of the indoor temperature to the target temperature range is accelerated.
Through adopting above-mentioned technical scheme, outdoor temperature can be acquireed to the data acquisition module, indoor temperature and target temperature scope, scheme generation module can generate periodic temperature control scheme, periodic temperature control scheme can be when indoor temperature is in the target temperature scope with the room temperature stable at the target temperature scope, so under periodic temperature control scheme, if indoor temperature is in the target temperature scope, then indoor temperature can be better stable at the target temperature scope, if indoor temperature surpasss the target temperature scope, then indoor temperature can be close to the target temperature scope under periodic temperature control scheme, scheme adjustment module can be according to indoor temperature and target temperature scope adjustment periodic temperature control scheme, make the indoor temperature scope can be faster change to the target temperature scope. The device adopts a temperature pre-adjustment mechanism determined according to the steady state condition, well overcomes the time lag existing in the traditional PID adjustment mechanism, can ensure that the indoor temperature is well stabilized in the target temperature range suitable for the growth of crops, and is beneficial to the growth of the crops.
Preferably, the scheme generation module is further configured to:
determining steady state difference value information according to the outdoor temperature information and the target temperature range; the steady state difference value information is the magnitude and the direction of the outdoor temperature exceeding the target temperature range;
determining steady-state speed information according to the steady-state difference information; the steady state speed information is the change speed of the indoor temperature under the influence of the outdoor temperature when the indoor temperature is in the target temperature range;
and generating the periodic temperature control scheme according to the steady-state speed information.
Preferably, the scheme adjustment module is further configured to:
determining actual difference value information according to the indoor temperature information and the target temperature range; the actual difference information is the size and the direction of the indoor temperature exceeding the target temperature range;
determining temperature control variable information according to the actual difference information; the temperature control variable information is a temperature variable required by the indoor temperature to change to a target temperature range;
adjusting the periodic temperature control scheme according to the temperature control variable information; each cycle of the periodic temperature control scheme is also used to implement a temperature control variable at a preset ratio.
Preferably, the data acquisition module is further configured to acquire indoor illumination intensity information;
the device further comprises a photo-thermal determining module, wherein the photo-thermal speed determining module is used for generating photo-thermal speed information according to the indoor illumination intensity information; the photo-thermal speed information is the temperature rise speed of the indoor temperature under the indoor illumination intensity;
the scheme adjustment module is further configured to adjust the periodic scheme information according to the photothermal velocity information.
In a third aspect, an embodiment of the application discloses an electronic device. The electronic device includes: a memory having a computer program stored thereon and a processor implementing the method as disclosed in the first aspect of embodiments of the present application when executing the program.
In a fourth aspect, embodiments of the present application disclose a computer-readable storage medium, on which a computer program is stored, which, when executed by a processor, implements the method as disclosed in the first aspect of embodiments of the present application.
It should be understood that what is described in this summary section is not intended to limit key or critical features of the embodiments of the application, nor is it intended to limit the scope of the application. Other features of the present application will become apparent from the following description.
Drawings
The above and other features, advantages and aspects of various embodiments of the present application will become more apparent by referring to the following detailed description when taken in conjunction with the accompanying drawings. In the drawings, like or similar reference characters designate like or similar elements, and wherein:
FIG. 1 illustrates a schematic diagram of an exemplary operating environment in which embodiments of the present application can be implemented;
FIG. 2 shows an exemplary flowchart of a method for controlling the temperature of a glass greenhouse in an embodiment of the present application;
FIG. 3 shows an exemplary block diagram of a glass greenhouse temperature control apparatus in an embodiment of the present application;
fig. 4 shows a schematic structural diagram of a terminal device or a server suitable for implementing the embodiments of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all 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 application.
In addition, the term "and/or" herein is only one kind of association relationship describing an associated object, and means that there may be three kinds of relationships, for example, a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
The present application is described in further detail below with reference to figures 1 to 4.
The control of the temperature in the greenhouse is generally achieved by a temperature control system which controls the temperature in the greenhouse within a target temperature range suitable for the growth needs of the crops in the greenhouse so that the growth of the crops is not limited by the natural temperature environment.
In the related art, a temperature control system generally includes a temperature acquisition device, a temperature control device, and a control system. Wherein, temperature acquisition device and temperature control device all set up in the greenhouse, and temperature acquisition device can gather greenhouse indoor temperature, and temperature control device can control greenhouse indoor temperature. The control system adopts a PID regulating mechanism, controls the temperature control device to heat the greenhouse when the indoor temperature of the greenhouse is lower than the target temperature range through presetting the target temperature range, and controls the temperature control device to cool the greenhouse when the indoor temperature of the greenhouse is higher than the target temperature range, thereby realizing the purpose of stabilizing the indoor temperature of the greenhouse in the target temperature range.
In the above related art, on one hand, the PID adjusting mechanism is used to control the indoor temperature of the greenhouse, which has a certain time lag, so that the indoor temperature of the greenhouse is easily beyond the target temperature range suitable for the growth of the crops in the greenhouse, and the growth of the crops in the greenhouse is affected, on the other hand, the number of the temperature collecting devices and the temperature control devices is limited, that is, the temperature collecting devices can only collect the temperature of the temperature environment in the greenhouse, and the temperature control devices can only control the temperature of the indoor temperature environment, and in addition, the PID adjusting mechanism is limited by the sensitivity of the temperature collecting devices, and the time lag defect can be amplified, and the influence of the crops in the greenhouse is further affected.
The glass greenhouse is a novel greenhouse and is formed by enclosing glass on the whole. Because the thermal isolation of the glass is worse than that of the wall of the traditional greenhouse, the indoor temperature of the glass greenhouse is easier to change under the influence of the outdoor temperature, the variation of the indoor temperature of the glass greenhouse is more under the same degree of time lag, namely, the traditional temperature control system is applied to the glass greenhouse, the time lag defect of a PID (proportion integration differentiation) adjusting mechanism in the temperature control system is amplified, and the influence on the growth of crops in the glass greenhouse is larger.
In order to stably control the temperature in the glass greenhouse within a target temperature range and avoid influencing crops in the glass greenhouse, the embodiment of the application discloses a glass greenhouse temperature control method and device, electronic equipment and a readable storage medium.
FIG. 1 illustrates a schematic diagram of an exemplary operating environment 100 in which embodiments of the present application can be implemented. Referring to fig. 1, operating environment 100 includes a control system 110, a temperature acquisition device 120, and a temperature control device 130.
The temperature acquisition device 120 may include a temperature sensor, and may also include other components with temperature acquisition functions, such as a temperature transmitter, a thermistor, and the like. The temperature acquisition device 120 may include only one type of element having a temperature acquisition function, or may include a plurality of types of elements having a temperature acquisition function. The temperature acquisition device 120 is disposed inside and/or outside the glass greenhouse, and is capable of acquiring the temperature inside and/or outside the glass greenhouse in real time and outputting or respectively outputting a temperature acquisition signal.
The temperature control device 130 may include a heating device and a cooling device, which may be integrated into a piece of equipment, such as the temperature control device 130 configured as an air conditioner, or the heating device and the cooling device may be separately configured, such as the heating device configured as an air heater and the cooling device configured as an air cooler. The temperature control device 130 is also provided in the glass greenhouse, and can control the temperature in the glass greenhouse.
The control system 110 may include a single chip controller, a PLC controller, an FPGA programmable controller, or other controllers, and the control system 110 may be an integrated controller or a distributed control system. The control system 110 is connected with the temperature acquisition device 120 and can receive the indoor temperature information acquired by the temperature acquisition device 120, and the control system 110 is also connected with the temperature control device 130 and controls the change of the indoor temperature of the glass greenhouse by controlling the temperature control device 130.
The operating environment 100 can also include other collection terminals such as a light intensity collection device 140 and other execution terminals such as an outer canvas system 150, an inner canvas system 160, and a windowing system 170 to collect other data.
The light intensity collecting device 140 may include a photo-resistor or the like capable of collecting light intensity.
The function of the outer curtain system 150 is to shade the glass greenhouse with the outer curtain to prevent the temperature of the glass greenhouse from rising further when the outdoor temperature is high. The function of the inner screen system 160 is to apply the inner screen to insulate the glass greenhouse, and the inner screen can prevent the indoor air flow from directly contacting the glass wall, reducing the possibility that the indoor temperature is affected by the outdoor temperature. The windowing system 170 functions to communicate the indoor air environment with the outdoor air environment of the glass greenhouse to prevent overheating and over-wetting in the glass greenhouse and to ventilate and replenish carbon dioxide.
Of course, the light intensity collecting device 140 described above or other collecting terminals not described above, the outer canvas system 150, the inner canvas system 160, and the windowing system 170 described above or other executing terminals not described above are all connected to the control system 110, the collecting terminal transmits the collected information to the control system 110, and the control system 110 controls the executing terminal to act.
FIG. 2 shows an example flow chart of a glass greenhouse temperature control method 200 in an embodiment of the present application. Referring to FIG. 2, a method 200 may be performed by the control system 110 of FIG. 1.
In block 210, the control system 110 obtains outdoor temperature information, indoor temperature information, target temperature range, and illumination intensity information.
The outdoor temperature information may be collected by the temperature collecting device 120 disposed outside the glass greenhouse, and the indoor temperature information may be collected by the temperature collecting device 120 disposed inside the glass greenhouse.
The target temperature range may be a fixed range in which both the upper limit and the lower limit are determined, or may be a variable range in which both the upper limit and the lower limit are varied, for example, the target temperature range may be a first temperature range from 6 hours to 18 hours on a certain day, and a second temperature range from 0 hours to 6 hours and from 18 hours to 24 hours, and the upper limit and the lower limit of the target temperature range may be varied in real time in consideration of the time-varying differential of the target temperature range, that is, the upper limit and the lower limit of the target temperature range may each be represented by a curve determined according to time. The target temperature range may be pre-stored in the control system 110, or may be input into the control system 110 by a worker through an external input device such as a keyboard, and/or a mouse, and/or a touch screen.
The glass greenhouse can generate heat when receiving sunlight, and the higher the illumination intensity is, the higher the generated heat is correspondingly. The purpose of obtaining the illumination intensity information is to consider the influence of heat generated when the glass greenhouse receives sunlight on the temperature in the glass greenhouse, where the illumination intensity refers to the illumination intensity actually received in the glass greenhouse, so the illumination intensity information is generally realized by the light intensity collecting device 140 arranged in the glass greenhouse, of course, considering that the loss of sunlight passing through the glass is small, the illumination intensity information can also be collected by the light intensity collecting device 140 arranged on the outer surface of the glass greenhouse, and the control system 110 directly reflects the collected light intensity information as the illumination intensity received in the glass greenhouse, or reduces the light intensity by a preset proportion to be used as the illumination intensity received in the glass greenhouse.
In block 220, the control system 110 generates a periodic temperature control scheme based on the outdoor temperature information and the target temperature range.
The periodic temperature control scheme is a temperature control scheme for controlling the indoor temperature of the glass greenhouse, and the scheme has periodicity.
The periodic temperature control scheme includes temperature control speed, temperature control time and temperature control frequency. The temperature control speed is the speed for changing the indoor temperature of the glass greenhouse and comprises the direction and the magnitude, the direction of the temperature control speed is positive and negative, the positive temperature control speed is heating, the negative temperature control speed is cooling, the magnitude of the temperature control speed is in direct proportion to the working power of the temperature control device 130, the larger the working power of the temperature control device 130 is, the larger the magnitude of the temperature control speed is, the smaller the working power of the temperature control device 130 is, and the smaller the magnitude of the temperature control speed is.
In the method of this step, the control system 110 first determines the steady state difference information according to the outdoor temperature information and the target temperature range, where the steady state difference information is the difference between the outdoor temperature and the indoor temperature of the glass greenhouse, which is obtained by subtracting the target temperature range from the outdoor temperature, or subtracting the outdoor temperature from the target temperature range, for example, when the outdoor temperature is higher than the target temperature range, the steady state difference information may be the difference obtained by subtracting the upper limit of the target temperature range from the outdoor temperature, and when the outdoor temperature is lower than the target temperature range, the steady state difference information may be the difference obtained by subtracting the outdoor temperature from the lower limit of the target temperature range from the outdoor temperature.
In an actual scene, the outdoor temperature environment can be considered as a constant temperature environment instantaneously, the glass greenhouse controls the temperature in the constant temperature environment of the outdoor temperature, when the steady state difference information is determined, the acquired outdoor temperature is used as the constant temperature environment, the upper limit or the lower limit (specifically determined by whether the outdoor temperature is higher than the target temperature range or lower than the target temperature range) of the target temperature range is determined as the temperature environment to be controlled, and the temperature environment to be controlled approaches the temperature of the constant temperature environment at a speed of a specified size in the constant temperature environment, namely the steady state speed information is determined. The steady-state speed information also comprises the magnitude and the direction, the direction of the steady-state speed information is that the indoor temperature is close to the target temperature range, the temperature is increased to be positive, the temperature is decreased to be negative, and the magnitude of the steady-state speed information is that the indoor temperature is close to the target temperature range.
The periodic temperature control scheme is finally determined by the steady-state speed information, and the periodic temperature control scheme can balance the steady-state speed information, namely when the balance or partial balance indoor temperature is in a target temperature range, the indoor temperature changes under the influence of the outdoor temperature. The balance is combined with the threshold range of the target temperature range for fuzzification processing, namely when the indoor temperature is in the target temperature range, the calculated indoor temperature does not exceed the target temperature range under a periodic temperature control scheme.
In some examples, if the target temperature range is 20 ℃ to 25 ℃ and the outdoor temperature information reflects an outdoor temperature of 16 ℃, the control system 110 may determine that the indoor temperature has a temperature change rate of-2 ℃/h under the influence of the outdoor temperature of 16 ℃ when the indoor temperature is at 20 ℃ to 25 ℃, according to a temperature influence curve pre-stored in the control system 110. In determining the periodic temperature control scheme, the room temperature may be considered to be any temperature value between 20 ℃ and 25 ℃, for example, 20 ℃, 23 ℃, or 25 ℃.
When the indoor temperature is defined as 20 ℃, the indoor temperature immediately exceeds the target temperature range when being reduced, so that the periodic temperature control scheme can be started immediately, and the periodic temperature control scheme can be as follows: the temperature control speed is 3 ℃/h, the temperature control time is 5h, the temperature control frequency is 1/7.5h, and the scheme II comprises the following steps: the temperature control speed is 5 ℃/h, the temperature control time is 1h, the temperature control frequency is 1/2.5h, and the scheme III: the temperature control speed is 4 ℃/h, the temperature control time is 1h, and the temperature control frequency is 1/3 h. In the above temperature control scheme, under the temperature control speed and the steady state speed, the indoor temperature of the glass greenhouse changes at the sum of the temperature control speed and the steady state speed, for example, in the first scheme, the temperature control speed is 3 ℃/h, the steady state speed is-2 ℃/h, in one period of the temperature control scheme, the temperature change speed in the glass greenhouse is 1 ℃/h, namely the indoor temperature of the glass greenhouse rises by 1 hour, under the temperature control time of 5h, the indoor temperature of the glass greenhouse rises by 5 ℃, namely in one period, the temperature in the glass greenhouse changes from 20 ℃ to 25 ℃, the temperature control frequency is 1/7.5h, namely in 7.5h, the temperature control scheme is carried out for one temperature control period, the indoor temperature of the glass greenhouse changes by 5 hours at the temperature rise speed of 1 ℃, and changes by the remaining 2.5 hours at the steady state speed, namely-2 ℃/h, the indoor temperature of the glass greenhouse is varied within a target temperature range of 20 ℃ to 25 ℃.
When the indoor temperature is defined as 23 ℃ or 25 ℃, the control system 110 may generate a temperature control scheme according to the above principle, and dynamically stabilize the calculated indoor temperature within the target temperature range.
Considering the influence of the illumination intensity on the indoor temperature, the periodic temperature control scheme is also generated according to the illumination intensity information. Specifically, the control system 110 firstly acquires the indoor illumination intensity information through the light intensity acquisition device 140 or calculates the acquired indoor illumination intensity information, and because the light receiving area of the glass greenhouse is fixed, the heat generated in the glass greenhouse is correspondingly fixed under the illumination of a certain light intensity, the speed of the heat generated in the glass greenhouse due to the illumination, namely the photo-thermal speed information, can be determined through the illumination intensity information. In considering the photothermal speed information, the photothermal speed information may be given to the steady-state speed information, and considering the periodic temperature control scheme, for example, the photothermal speed information is 0.2 ℃/h, and referring to the foregoing example, the temperature speed of influence of the outdoor temperature on the indoor temperature is-2 ℃/h, and the steady-state speed information may be considered as the photothermal speed information and the temperature speed of influence of the outdoor temperature on the indoor temperature is-1.8 ℃/h. And then according to the principle in the previous example, generating a periodic temperature control scheme according to the steady-state speed information of-1.8 ℃/h.
In this step, according to the periodic temperature control scheme determined by the outdoor temperature and the target temperature range, when the indoor temperature is within the target temperature range, the indoor temperature can be stabilized within the target temperature range, and when the indoor temperature is not within the target temperature range, the indoor temperature can naturally approach the target temperature range under the periodic temperature control scheme, and finally a stable state stabilized within the target temperature range is achieved.
In block 230, the control system 110 adjusts the periodic temperature control scheme based on the indoor temperature information and the target temperature range.
In order to reduce the time from the indoor temperature change to the target temperature range, the periodic temperature control scheme needs to adjust according to the indoor temperature information and the target temperature range, so that the indoor temperature not in the target temperature range is changed to the target temperature range more rapidly.
In the method of this step, the control system 110 first determines actual difference information based on the indoor temperature information and the target temperature range. The indoor temperature is the actual indoor temperature acquired, and if the acquired indoor temperature is not in the target temperature range, a difference exists between the indoor temperature and the target temperature range, namely actual difference information. In one example, when the indoor temperature is in the target temperature range, the control system 110 determines that the actual difference is 0; when the indoor temperature is lower than the target temperature range, the control system 110 determines the actual difference as the difference between the lower limit of the target temperature range and the indoor temperature; when the indoor temperature is higher than the target temperature range, the control system 110 determines the actual difference as the difference between the indoor temperature and the upper limit of the target temperature range. Of course, the actual difference information may also be determined in other manners, for example, the control system 110 first determines a midpoint value of the target temperature range, and then directly determines the difference between the indoor temperature and the midpoint value of the target temperature range as the actual difference information, and only the determined actual difference information can reflect the relative relationship between the indoor temperature and the target temperature range.
After obtaining the actual difference information, the control system 110 determines temperature control variable information based on the actual difference information. The temperature control variable information is specifically a temperature variable required by the change of the indoor temperature to a target temperature range, specifically, the space capacity in the glass greenhouse is constant, so that the heat required by the glass greenhouse to change a certain temperature or the heat required to be absorbed is also constant, and the temperature control variable information is heat value information determined according to actual difference information.
After the temperature control variable information is determined, the control system 110 adjusts the periodic temperature control scheme according to the temperature control variable information. The control system 110 re-determines the steady-state speed information according to the preset rule and the temperature control variable information, and then re-generates the periodic temperature control scheme according to the steady-state speed information, thereby realizing the adjustment of the periodic temperature control scheme. The preset rule may be any reasonable rule, for example, the preset rule is selected as a preset proportion, if the temperature control variable information is 5 ℃ obtained by subtracting the indoor temperature from the lower limit of the target temperature range, and the preset proportion is 0.12, the steady state change parameter is determined to be 0.6 ℃ according to the temperature control variable information and the preset proportion, the negative steady state change parameter and the obtained steady state speed information are summed, the obtained result is redefined as the steady state speed information, and the periodic temperature control scheme is regenerated according to the redefined steady state speed information; if the temperature control variable information is 5 ℃ obtained by entering the upper limit of the target temperature range of the indoor temperature, and the preset proportion is 0.1, the steady-state change parameter can be determined to be 0.5 ℃ according to the temperature control variable information and the preset proportion, the steady-state change parameter and the steady-state speed information are summed, the steady-state change parameter and the steady-state speed information are determined again according to the obtained result, and then the periodic temperature control scheme is generated again according to the determined steady-state speed information.
The preset rule may be a preset ratio in the above example, or may be any other function, but the temperature control variable information is used to determine the steady-state speed information again, and generally, the temperature control variable increases the original steady-state speed by a preset ratio along the original direction. Of course, in addition to the influence of the temperature control target information on the steady-state speed information, the influence of the temperature control target information on the temperature control speed, the temperature control time and the temperature control frequency of the generated periodic temperature control scheme can also be considered, and the temperature control target can increase the temperature control speed, prolong the temperature control time and reduce the temperature control frequency according to a preset proportion.
In the method, the glass greenhouse is in a relatively closed state and is not communicated with an outdoor environment, only the relatively fixed heat conduction efficiency of the glass wall is considered, and the inner curtain and the outer curtain of the glass greenhouse are not pulled up, so that the outer curtain can not block sunlight to enter the glass greenhouse, and the inner curtain can not influence the heat exchange between the interior and the exterior of the glass greenhouse through the glass wall.
In some extreme environments, such as when the outdoor temperature is far lower than the target temperature range, the control system 110 can control the inner curtain system 160 to pull up and close the windowing system 170, so as to reduce the temperature drop effect of the outdoor temperature on the indoor temperature to the maximum extent; if the outdoor temperature is far higher than the target temperature range, the control system can control the outer curtain system to pull up and close the windowing system 170, so as to reduce the temperature rise effect brought by the outdoor temperature to the indoor temperature to the maximum extent.
It should be noted that, for simplicity of description, the above-mentioned method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present application is not limited by the order of acts described, as some steps may occur in other orders or concurrently depending on the application. Further, those skilled in the art should also appreciate that the embodiments described in the specification are exemplary embodiments and that the acts and modules referred to are not necessarily required in this application.
The above is a description of method embodiments, and the embodiments of the present application are further described below by way of apparatus embodiments.
Fig. 3 shows an example block diagram of a glass greenhouse temperature control apparatus 300 in the embodiment of the present application. The apparatus 300 may be included in the control system 110 of fig. 1 or implemented as the operating environment 100. As shown in fig. 3, the apparatus 300 includes:
a data obtaining module 310, configured to obtain outdoor temperature information, indoor temperature information, and a target temperature range;
the scheme generation module 320 is used for generating a periodic temperature control scheme according to the outdoor temperature information and the target temperature range; the periodic temperature control scheme comprises temperature control speed, temperature control time and temperature control frequency; when the indoor temperature is in the target temperature range, the temperature control scheme can balance the influence of the outdoor temperature on the indoor temperature, so that the indoor temperature is dynamically stabilized in the target temperature range;
a scheme adjusting module 330, configured to adjust temperature control scheme information according to the indoor temperature information and the target temperature range; under the temperature control scheme, the speed of the change of the indoor temperature to the target temperature range is accelerated.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working process of the described module may refer to the corresponding process in the foregoing method embodiment, and is not described herein again.
Fig. 4 shows a schematic structural diagram of a terminal device or a server suitable for implementing the embodiments of the present application.
As shown in fig. 4, the terminal device or server 400 includes a Central Processing Unit (CPU)401 that can perform various appropriate actions and processes in accordance with a program stored in a Read Only Memory (ROM)402 or a program loaded from a storage section 408 into a Random Access Memory (RAM) 403. In the RAM 403, various programs and data necessary for the operation of the system 400 are also stored. The CPU 401, ROM 402, and RAM 403 are connected to each other via a bus 404. An input/output (I/O) interface 405 is also connected to bus 404.
The following components are connected to the I/O interface 405: an input section 406 including a keyboard, a mouse, and the like; an output section 407 including a display device such as a Cathode Ray Tube (CRT), a Liquid Crystal Display (LCD), and the like, and a speaker; a storage section 408 including a hard disk and the like; and a communication section 409 including a network interface card such as a LAN card, a modem, or the like. The communication section 409 performs communication processing via a network such as the internet. A driver 410 is also connected to the I/O interface 405 as needed. A removable medium 411 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, or the like is mounted on the drive 410 as necessary, so that a computer program read out therefrom is mounted into the storage section 408 as necessary.
In particular, according to embodiments of the present application, the process described above with reference to the flowchart fig. 2 may be implemented as a computer software program. For example, embodiments of the present application include a computer program product comprising a computer program embodied on a machine-readable medium, the computer program comprising program code for performing the method illustrated in the flow chart. In such an embodiment, the computer program may be downloaded and installed from a network through the communication section 409, and/or installed from the removable medium 411. The above-described functions defined in the system of the present application are executed when the computer program is executed by a Central Processing Unit (CPU) 401.
It should be noted that the computer readable medium shown in the present application may be a computer readable signal medium or a computer readable storage medium or any combination of the two. A computer readable storage medium may be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the foregoing. More specific examples of the computer readable storage medium may include, but are not limited to: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In the present application, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device. In this application, however, a computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, for example, in baseband or as part of a carrier wave. Such a propagated data signal may take many forms, including, but not limited to, electro-magnetic, optical, or any suitable combination thereof. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to: wireless, wire, fiber optic cable, RF, etc., or any suitable combination of the foregoing.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
The units or modules described in the embodiments of the present application may be implemented by software or hardware. The described units or modules may also be provided in a processor, and may be described as: a processor includes a data acquisition module, a scenario generation module, and a scenario adjustment module. The names of the units or modules do not constitute a limitation to the units or modules themselves in some cases, and for example, the data acquisition module may also be described as a "module for acquiring indoor and outdoor temperature data and temperature control target data of a glass greenhouse".
As another aspect, the present application also provides a computer-readable storage medium, which may be included in the electronic device described in the above embodiments; or may be separate and not incorporated into the electronic device. The computer-readable storage medium stores one or more programs that, when executed by one or more processors, perform the methods of controlling glass greenhouse temperature described herein.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by those skilled in the art that the scope of the disclosure herein is not limited to the particular combination of features described above, but also encompasses other arrangements formed by any combination of the above features or their equivalents without departing from the spirit of the disclosure. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (8)
1. A glass greenhouse temperature control method is characterized by comprising the following steps:
acquiring outdoor temperature information, indoor temperature information and a target temperature range;
determining steady state difference value information according to the outdoor temperature information and the target temperature range; the steady state difference value information is the magnitude and the direction of the outdoor temperature exceeding the target temperature range;
determining steady-state speed information according to the steady-state difference information, specifically:
determining a temperature-controlled temperature environment by taking the acquired outdoor temperature as a constant temperature environment, wherein the upper limit or the lower limit of a target temperature range is determined according to whether the outdoor temperature is higher than the target temperature range or lower than the target temperature range, the temperature-controlled temperature environment approaches to the temperature of the constant temperature environment at a speed of a specified magnitude under the constant temperature environment, the speed of the temperature-controlled temperature environment approaching to the temperature of the constant temperature environment under the constant temperature environment is steady-state speed information, and the steady-state speed information is the change speed of the indoor temperature under the influence of the outdoor temperature when the indoor temperature is in the target temperature range;
generating a periodic temperature control scheme according to the steady-state speed information; the periodic temperature control scheme comprises temperature control speed, temperature control time and temperature control frequency; when the indoor temperature is in the target temperature range, the temperature control scheme can balance the influence of the outdoor temperature on the indoor temperature, so that the indoor temperature is dynamically stabilized in the target temperature range;
adjusting the periodic temperature control scheme according to the indoor temperature information and the target temperature range; under the temperature control scheme, the speed of the change of the indoor temperature to the target temperature range is accelerated.
2. The method of claim 1, wherein the method of adjusting the periodic temperature control scheme based on the indoor temperature information and a target temperature range comprises:
determining actual difference value information according to the indoor temperature information and the target temperature range; the actual difference information is the size and the direction of the indoor temperature exceeding the target temperature range;
determining temperature control variable information according to the actual difference information; the temperature control variable information is a temperature variable required by the indoor temperature to change to a target temperature range;
adjusting the periodic temperature control scheme according to the temperature control variable information; each cycle of the periodic temperature control scheme is also used to implement a temperature control variable at a preset ratio.
3. The method of claim 1, further comprising:
acquiring indoor illumination intensity information;
generating photo-thermal speed information according to the indoor illumination intensity information; the photo-thermal speed information is the temperature rise speed of the indoor temperature under the indoor illumination intensity;
and adjusting the periodic temperature control scheme according to the photo-thermal speed information.
4. A glass greenhouse temperature control device, characterized by comprising:
a data acquisition module (310) for acquiring outdoor temperature information, indoor temperature information and a target temperature range;
a scenario generation module (320) for determining steady state difference information based on the outdoor temperature information and the target temperature range; the steady state difference value information is the magnitude and the direction of the outdoor temperature exceeding the target temperature range; determining steady-state speed information according to the steady-state difference information, specifically:
determining a temperature-controlled temperature environment by taking the acquired outdoor temperature as a constant temperature environment, wherein the upper limit or the lower limit of a target temperature range is determined according to whether the outdoor temperature is higher than the target temperature range or lower than the target temperature range, the temperature-controlled temperature environment approaches to the temperature of the constant temperature environment at a speed of a specified magnitude under the constant temperature environment, the speed of the temperature-controlled temperature environment approaching to the temperature of the constant temperature environment under the constant temperature environment is steady-state speed information, and the steady-state speed information is the change speed of the indoor temperature under the influence of the outdoor temperature when the indoor temperature is in the target temperature range;
generating a periodic temperature control scheme according to the steady-state speed information; the periodic temperature control scheme comprises temperature control speed, temperature control time and temperature control frequency; when the indoor temperature is in the target temperature range, the temperature control scheme can balance the influence of the outdoor temperature on the indoor temperature, so that the indoor temperature is dynamically stabilized in the target temperature range;
a schedule adjustment module (330) for adjusting the periodic temperature control schedule based on the indoor temperature information and a target temperature range; under the temperature control scheme, the speed of the change of the indoor temperature to the target temperature range is accelerated.
5. The apparatus of claim 4, wherein the scheme adjustment module (330) is further configured to:
determining actual difference value information according to the indoor temperature information and the target temperature range; the actual difference information is the size and the direction of the indoor temperature exceeding the target temperature range;
determining temperature control variable information according to the actual difference information; the temperature control variable information is a temperature variable required by the indoor temperature to change to a target temperature range;
adjusting the periodic temperature control scheme according to the temperature control variable information; each cycle of the periodic temperature control scheme is also used to implement a temperature control variable at a preset ratio.
6. The apparatus of claim 4, wherein the data acquisition module (310) is further configured to acquire indoor illumination intensity information;
the device further comprises a photo-thermal speed determination module (340), wherein the photo-thermal speed determination module (340) is used for generating photo-thermal speed information according to the indoor illumination intensity information; the photo-thermal speed information is the temperature rise speed of the indoor temperature under the indoor illumination intensity;
the scheme adjusting module (330) is further configured to adjust the periodic temperature control scheme according to the photothermal velocity information.
7. An electronic device comprising a memory and a processor, the memory having stored thereon a computer program, wherein the processor, when executing the program, implements the method of any of claims 1-3.
8. A computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, carries out the method according to any one of claims 1 to 3.
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| CN103034263B (en) * | 2013-01-10 | 2015-01-07 | 中国科学院国家天文台南京天文光学技术研究所 | Heat preservation method and heat preservation equipment of instrument applied to low-temperature environment |
| CN104238592B (en) * | 2014-09-15 | 2016-08-24 | 北京东方计量测试研究所 | A kind of fast constant temperature case self-adaptation control method and control system |
| CN105739570A (en) * | 2016-04-15 | 2016-07-06 | 浙江大学 | Multi-mode temperature control experiment teaching apparatus |
| CN106444909A (en) * | 2016-10-31 | 2017-02-22 | 深圳前海弘稼科技有限公司 | Greenhouse environment regulation and control method and apparatus |
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