CN112256067A - Temperature control method, temperature control device, electronic equipment and storage medium - Google Patents
Temperature control method, temperature control device, electronic equipment and storage medium Download PDFInfo
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- G05D23/193—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces
- G05D23/1931—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces to control the temperature of one space
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Abstract
The invention provides a temperature control method, a temperature control device, electronic equipment and a storage medium, wherein the method comprises the following steps: obtaining the average change rate of the temperature of the last first time domain and the last second time domain; if the temperature change is judged to be unstable according to the temperature of the last first time domain, acquiring the control quantity of the current first time domain according to the average change rate of the temperatures of the last first time domain and the last second time domain; the second time domain is composed of a preset number of first time domains. The temperature control method, the temperature control device, the electronic equipment and the storage medium provided by the embodiment of the invention can be used for microscopically analyzing the temperature trend based on the temperature of the first time domain to quickly adjust the increment, and can be used for macroscopically analyzing the temperature trend based on the second time domain to judge the control effect, so that the temperature trends of different time domains can be counted, the output can be timely adjusted, the aim of more stable temperature control can be fulfilled, and more stable and more accurate temperature control can be realized.
Description
Technical Field
The present invention relates to the field of computer technologies, and in particular, to a temperature control method and apparatus, an electronic device, and a storage medium.
Background
Temperature control belongs to a hysteresis system, unstable temperature control often occurs in control, and general PID control has good control effect on a system with slow heating and heat dissipation and can often be controlled within a range of +/-1 ℃.
The general PID design algorithm comprises three parts: proportional, integral, derivative. The proportion control mainly has the function of quick adjustment, but can generate overshoot; the integral control is to reduce error (or noise) and make the curve tend to be stable; differential control can improve the dynamic performance of the system, but often causes over-excited oscillation, which is the most difficult part to adjust in the three parts. The PID control is generally used in the aspect of industrial control, but for systems such as lag systems, strong disturbance systems, etc., which are rapid in heating and rapid in heat dissipation, overshoot is often generated, which results in too frequent adjustment of temperature control equipment, poor control effect, and inaccurate and stable performance.
Disclosure of Invention
The invention provides a temperature control method, a temperature control device, electronic equipment and a storage medium, which are used for overcoming the defect that the temperature control in the prior art is not accurate and stable enough and realizing more accurate and stable temperature control.
The invention provides a temperature control method, which comprises the following steps:
obtaining the average change rate of the temperature of the last first time domain and the last second time domain;
if the temperature change is judged to be unstable according to the temperature of the last first time domain, acquiring the control quantity of the current first time domain according to the average change rate of the temperatures of the last first time domain and the last second time domain;
the second time domain is composed of a preset number of first time domains.
According to the temperature control method provided by the present invention, the specific step of obtaining the average change rate of the previous first time domain temperature includes:
acquiring a temperature change model of the previous first time domain according to the temperature acquired at each sampling moment in the previous first time domain;
and obtaining the average change rate of the temperature of the last first time domain according to the temperature change model of the last first time domain.
According to the temperature control method provided by the invention, the specific step of obtaining the average change rate of the temperature in the last second time domain comprises the following steps:
acquiring a temperature change model of the previous second time domain according to the average temperature of each first time domain included in the previous second time domain;
and obtaining the average change rate of the temperature of the last second time domain according to the temperature change model of the last second time domain.
According to the temperature control method provided by the present invention, the specific step of obtaining the temperature change model of the previous first time domain according to the temperature obtained at each sampling time in the previous first time domain includes:
and fitting the temperature obtained at each sampling moment in the last first time domain based on a least square method to obtain a temperature change model of the last first time domain.
According to a temperature control method provided by the present invention, the specific step of obtaining an average change rate of the temperature of the previous first time domain according to the temperature change model of the previous first time domain includes:
acquiring the temperature change rate of each sampling moment in the previous first time domain according to the temperature change model of the previous first time domain;
and acquiring the average change rate of the temperature of the last first time domain according to the temperature change rate of each sampling moment in the last first time domain.
According to the temperature control method provided by the present invention, the specific step of obtaining the temperature change model of the previous second time domain according to the average temperature of each first time domain included in the previous second time domain includes:
and fitting the average temperature of each first time domain included in the previous second time domain based on a least square method to obtain a temperature change model of the previous second time domain.
According to the temperature control method provided by the present invention, the specific step of obtaining the average change rate of the temperature in the previous second time domain according to the temperature change model in the previous second time domain includes:
obtaining wide-range temperature change rates corresponding to the first time domains included in the previous second time domain according to the temperature change model of the previous second time domain;
and obtaining the average change rate of the temperature of the last second time domain according to the wide-range temperature change rate corresponding to each first time domain included in the last second time domain.
The present invention also provides a temperature control device, comprising:
the temperature control device comprises a change rate acquisition module, a temperature control module and a temperature control module, wherein the change rate acquisition module is used for acquiring the average change rate of the temperature of a last first time domain and a last second time domain;
the control quantity obtaining module is used for obtaining the control quantity of the current first time domain according to the average change rate of the temperatures of the previous first time domain and the previous second time domain if the temperature change is judged to be unstable according to the temperature of the previous first time domain;
the second time domain is composed of a preset number of first time domains.
The invention also provides an electronic device, which comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the processor executes the computer program to realize the steps of any one of the temperature control methods.
The invention also provides a non-transitory computer readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the temperature control method as any one of the above.
According to the temperature control method, the temperature control device, the electronic equipment and the storage medium, the control quantity of the next narrow time domain is obtained according to the average change rate of the temperatures of different time domains, the temperature is controlled according to the control quantity of the next narrow time domain, trend analysis is carried out on the temperature from the microcosmic aspect on the basis of the temperature of the first time domain, increment can be adjusted rapidly, trend analysis is carried out on the temperature from the macroscopic aspect on the basis of the second time domain, the control effect can be judged, therefore, the temperature trends of different time domains can be counted, the output can be adjusted in time, the purpose of controlling the temperature more stably can be achieved, and more stable and more accurate temperature control can be achieved.
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In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a schematic flow diagram of a temperature control method provided by the present invention;
FIG. 2 is a schematic structural diagram of a temperature control device provided by the present invention;
fig. 3 is a schematic structural diagram of an electronic device provided in the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and not order.
In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.
In order to overcome the problems in the prior art, the invention provides a temperature control method, a temperature control device, electronic equipment and a storage medium.
Fig. 1 is a schematic flow chart of a temperature control method provided by the present invention. The temperature control method of the embodiment of the present invention is described below with reference to fig. 1. As shown in fig. 1, the method includes: step 101, obtaining an average change rate of the temperature in the last first time domain and the last second time domain.
The second time domain is composed of a preset number of first time domains.
In particular, the first time domain t may be2As time granularity for temperature control.
The first time domain is a time period with a preset duration.
For two adjacent first time domains, the ending time of the previous first time domain is the starting time of the next first time domain.
A predetermined number of successive first time domains forming a second time domain t3。
The preset number can be set according to actual conditions. The embodiment of the present invention is not particularly limited to the specific value of the preset number.
It is understood that the first time domain is a narrow time domain and the second time domain is a wide time domain or a wide time domain.
The last second time domain is the second time domain of the last first time domain.
After the ending time of the previous first time domain is reached, the average change rate of the temperature of the previous first time domain can be obtained according to the change condition of the temperature in the previous first time domain, and the average change rate of the temperature of the previous second time domain can be obtained according to the change condition of the temperature in the previous second time domain.
And 102, if the temperature change is judged to be unstable according to the temperature of the last first time domain, acquiring the control quantity of the current first time domain according to the average change rate of the temperatures of the last first time domain and the last second time domain.
Specifically, the area where the difference e (k) is located may be determined according to the difference e (k) between the ending time temperature of the last first time domain (i.e., the k-1 st first time domain) and the target temperature. Wherein k is a positive integer.
If the difference e (k) is not in the stationary phase, the temperature control can be performed by the following equation.
In the formation of a control formula, a proportion part and an integral part of classical increment PID control are reserved, and a differential part which is easy to generate overexcitation oscillation is removed.
The final closed-loop control formula is
Wherein the content of the first and second substances,
and
respectively representing the average change rate of the temperature in the last first time domain and the last second time domain;
and
respectively represent
And
the weight of (c);
、
、
is a preset control parameter;
is an increment determined from the average rate of change of temperature over the last first time domain and the last second time domain; u (k) represents the output of the temperature control device in the current first time domain (i.e., the kth first time domain), i.e., the control amount in the current first time domain.
If the difference e (k) is in the stable period, it can be removed from the closed-loop control formula
。
It is understood that after u (k) is obtained, temperature control may be performed according to u (k).
During the adjustment, from a narrow time domain t2And a wide time domain t3Starting from this, a determination is made of the trend of the change in temperature value (i.e., trend analysis is performed), and based thereon, an increment of the trend determination is formed
. According to changing the weight of both
And
the effect of both with respect to the increment is adjusted, thereby increasing the degree of freedom of control.
In addition, the judgment of the control stability can be made macroscopically through the judgment of the unevenness of the temperature change function in the last first time domain, and the quantity of the unevenness points outside the stability definition range can be counted. Based on the stability determination, parameters may be adjusted manually/automatically
、
、
Providing a basis to reduce overshoot.
Various condition judgments are added on the basis of the traditional PID control algorithm, so that the control is more accurate.
It should be noted that the temperature control method provided by the embodiment of the present invention is suitable for temperature control of a system with rapid heating and heat dissipation, for example, temperature control of a semiconductor exhaust gas treatment device. The heating rod of the semiconductor waste gas treatment equipment has larger power, and because a large amount of gas flows in the cavity, a large amount of heat can be taken away at high temperature, so that the characteristics of quick heating and quick heat dissipation are formed.
According to the embodiment of the invention, the control quantity of the next narrow time domain is obtained according to the average change rate of the temperatures of different time domains, the temperature control is carried out according to the control quantity of the next narrow time domain, the trend analysis is carried out on the temperature from the microcosmic aspect on the basis of the temperature of the first time domain, the increment can be rapidly adjusted, the trend analysis is carried out on the temperature from the macroscopic aspect on the basis of the second time domain, the control effect can be judged, the temperature trends of different time domains can be counted, the output can be timely adjusted, the aim of controlling the temperature more stably can be fulfilled, and the more stable and more accurate temperature control can be realized.
Based on the content of any of the above embodiments, the specific step of obtaining the average change rate of the last first time domain temperature includes: and acquiring a temperature change model of the previous first time domain according to the temperature acquired at each sampling moment in the previous first time domain.
In particular, the temperature sensor is used at an interval t1The output is u and the interrupt time of the output is t2，t2I.e. the first time domain.
Each first time domain has N1At each sampling instant, N can be obtained1Sampled values of each temperature.
Wherein, T2Representing a first time domain t2The length of time of; []Indicating rounding.
Establishing a sequence of sample arrays
The abscissa is 1,2,3, … N1。
The temperature obtained at each sampling time in the previous first time domain can be fitted to obtain a temperature change model of the previous first time domain.
And the temperature change model of the last first time domain is used for describing the change rule of the temperature of the last first time domain.
The temperature variation model of the first time domain may be a quadratic fit curve, expressed as y = ax2+bx+c。
And obtaining the average change rate of the temperature of the last first time domain according to the temperature change model of the last first time domain.
Specifically, since the temperature change model of the previous first time domain describes the change rule of the temperature of the previous first time domain, the average change rate of the temperature of the previous first time domain can be obtained according to the change rule of the temperature described by the temperature change model of the previous first time domain.
According to the embodiment of the invention, the temperature change model of the previous first time domain is obtained through the temperature obtained at each sampling moment in the previous first time domain, the average change rate of the temperature of the previous first time domain is obtained according to the temperature change model of the previous first time domain, so that the control quantity of the current first time domain can be obtained according to the average change rates of the temperatures of different time domains, the temperature is controlled according to the control quantity of the current first time domain, and more stable and more accurate temperature control can be realized.
Based on the content of any of the above embodiments, the specific step of obtaining the average change rate of the last second time domain temperature includes: and obtaining a temperature change model of the previous second time domain according to the average temperature of each first time domain included in the previous second time domain.
Specifically, the average temperature in the first time domain may be obtained according to the temperature obtained at each sampling time in the first time domain.
The average temperature in the first time domain is calculated as
Wherein the content of the first and second substances,
represents an average temperature in a first time domain; n is a radical of1Representing the number of sampling instants in a first time domain;
representing the temperature acquired at the ith sampling instant in the first time domain.
Each second time domain t3Comprising N2A first timeIn the second time domain t3Having N therein2An
The numerical value of (c). N is a radical of2I.e. a preset number.
Wherein, T3Representing a second time domain t3The length of time of; t is2Representing a first time domain t2The length of time of; []Indicating rounding.
Establishing array sequences
The abscissa is 1,2,3, … N2。
The average temperature of each first time domain included in the previous second time domain may be fitted to obtain a temperature change model of the previous second time domain.
And the temperature change model of the last second time domain is used for describing the change rule of the temperature of the last second time domain.
The temperature variation model of the second time domain may be a quadratic fit curve, expressed as Y = AX2+BX+C。
And obtaining the average change rate of the temperature of the previous second time domain according to the temperature change model of the previous second time domain.
Specifically, since the temperature change model of the previous second time domain describes the change rule of the temperature of the previous second time domain, the average change rate of the temperature of the previous second time domain can be obtained according to the change rule of the temperature described by the temperature change model of the previous second time domain.
According to the embodiment of the invention, the temperature change model of the previous second time domain is obtained through the average temperature of each first time domain included in the previous second time domain, the average change rate of the temperature of the previous second time domain is obtained according to the temperature change model of the previous second time domain, so that the control quantity of the current second time domain can be obtained according to the average change rates of the temperatures of different time domains, the temperature control is carried out according to the control quantity of the current second time domain, and more stable and more accurate temperature control can be realized.
Based on the content of any of the above embodiments, the specific step of obtaining the temperature change model of the previous first time domain according to the temperature obtained at each sampling time in the previous first time domain includes: and fitting the temperature obtained at each sampling moment in the last first time domain based on a least square method to obtain a temperature change model of the last first time domain.
Specifically, the fitting is figuratively speaking a series of points on a plane connected by a smooth curve. Because of the myriad possibilities for this curve, there are various methods of fitting. The fitted curve can be generally represented by a function, and different fitting names are provided according to the function.
The temperature obtained at each sampling moment in a first time domain can be fitted by using a least square method, i.e. a curve is found for discrete points, and the sum of the distances from each point to the curve, i.e. the sum of squared deviations, is minimized.
Solve the above formula
The partial derivatives and simplification of the coefficients are carried out to obtain the normal equations about a, b and c, the G matrix of the required method equation is solved uniquely, and the numerical values of the coefficients a, b and c are finally obtained as follows
Iterating according to the temperature obtained at each sampling time in the previous first time domain to obtain the values of a, b and c, and obtaining the temperature change model y = ax of the previous first time domain2+bx+c。
According to the embodiment of the invention, the quadratic fit curve is established on the basis of the temperature value of the first time domain, the curve has the function of filtering noise, the increment can be established by analyzing the trend of the curve, and both stability and rapidity are taken into consideration.
Based on the content of any of the above embodiments, the specific step of obtaining the average change rate of the temperature in the previous first time domain according to the temperature change model in the previous first time domain includes: and acquiring the temperature change rate of each sampling moment in the previous first time domain according to the temperature change model of the previous first time domain.
Specifically, a temperature change model y = ax of the last first time domain is obtained2After + bx + c, the curve described by the temperature variation model with the abscissa of 1,2,3, … N can be obtained1The slope (i.e. gradient or reciprocal) of (A) is taken as the temperature change rate of each sampling time in the last first time domain, respectively
And obtaining the average change rate of the temperature of the last first time domain according to the temperature change rate of each sampling moment in the last first time domain.
Specifically, the temperature change rate at each sampling time in the previous first time domain may be counted based on a mathematical statistical method to obtain an average change rate of the temperature in the previous first time domain.
Can obtain the last oneThe average value of the temperature change rate (i.e. the average value of the acquired slope) at each sampling time in a time domain is used as the average change rate of the temperature in the last first time domain
。
Wherein the content of the first and second substances,
representing a rate of change of temperature at an ith sampling time within the first time domain; n is a radical of1Representing the number of sampling instants in the first time domain.
The average slope is calculated, and the peak interference of the feedback signal to the model can be filtered out, so that a certain effect on the stability of the model is achieved.
According to the embodiment of the invention, the average change rate of the temperature of the last first time domain is obtained by obtaining the temperature change rate of each sampling time in the last first time domain and according to the temperature change rate of each sampling time in the last first time domain, so that the control model can be better stabilized, and more stable and more accurate temperature control can be realized.
Based on the content of any of the above embodiments, the specific step of obtaining the temperature change model of the previous second time domain according to the average temperature of each first time domain included in the previous second time domain includes: and fitting the average temperature of each first time domain included in the previous second time domain based on a least square method to obtain a temperature change model of the previous second time domain.
Specifically, the average temperature of each first time domain included in a second time domain can be fitted by using a least square method, that is, a curve is found for discrete points, and the sum of the distances from the points to the curve, that is, the sum of squared deviations is minimized.
The method step of fitting the average temperature of each first time domain included in the second time domain by using the least square method is similar to the method step of fitting the temperature obtained at each sampling time in the first time domain by using the least square method, and is not repeated here.
It should be noted that, a quadratic fit curve is established based on actual values of different time domains, the curve itself has the function of filtering noise, and the trend of the curve is analyzed to establish an increment, taking stability and rapidity into consideration.
The stability of the control system is guaranteed through calculation of the fitting curve and the mean value, and the system can quickly reach a set value when the system is in oscillation due to the advance judgment of the trend analysis.
According to the embodiment of the invention, the quadratic fit curve is established on the basis of the temperature value of the second time domain, the curve has the function of filtering noise, the increment can be established by analyzing the trend of the curve, and both stability and rapidity are taken into consideration.
Based on the content of any of the above embodiments, the specific step of obtaining the average change rate of the temperature in the previous second time domain according to the temperature change model in the previous second time domain includes: and obtaining wide-range temperature change rates corresponding to the first time domains included in the previous second time domain according to the temperature change model of the previous second time domain.
Specifically, the temperature change model Y = AX of the last second time domain is obtained2After + BX + C, the curve described by the temperature change model with the abscissa of 1,2,3, … N can be obtained2The slope (i.e. gradient or derivative) of (A) is taken as the wide-range temperature change rate corresponding to each first time domain included in the previous second time domain, respectively
Wherein the content of the first and second substances,
respectively represent the 1 st, 2 nd, 3 rd and … th N in a second time domain2And wide-range temperature change rate corresponding to the first time range.
And obtaining the average change rate of the temperature of the last second time domain according to the wide-domain temperature change rate corresponding to each first time domain included in the last second time domain.
Specifically, the wide-range temperature change rate corresponding to each first time domain included in the previous second time domain may be counted based on a mathematical statistical method to obtain an average change rate of the temperature of the previous second time domain.
An average value of the wide-range temperature change rate (i.e., an average value of the slope) corresponding to each first time domain included in the previous second time domain may be obtained as the average change rate of the temperature of the previous second time domain
。
Wherein the content of the first and second substances,
the wide-range temperature change rate corresponding to the ith first time range in the second time range is represented; n is a radical of2Indicating the number of first time domains comprised by the second time domain.
According to the embodiment of the invention, the average change rate of the temperature of the previous second time domain is obtained by obtaining the wide-domain temperature change rate corresponding to each first time domain included in the previous second time domain and according to the wide-domain temperature change rate corresponding to each first time domain included in the previous second time domain, so that the control model can be better stabilized, and more stable and more accurate temperature control can be realized.
The temperature control device provided by the present invention is described below, and the temperature control device described below and the temperature control method described above may be referred to in correspondence with each other.
Fig. 2 is a schematic structural diagram of a temperature control device according to an embodiment of the present invention. Based on the content of any of the above embodiments, as shown in fig. 2, the apparatus includes a change rate acquisition module 201 and a control amount acquisition module 202, wherein:
a change rate obtaining module 201, configured to obtain an average change rate of the temperature in the last first time domain and the last second time domain;
a control quantity obtaining module 202, configured to obtain a control quantity of a current first time domain according to an average change rate of temperatures of a previous first time domain and a previous second time domain if it is determined that a temperature change is unstable according to a temperature of the previous first time domain;
the second time domain is composed of a preset number of first time domains.
Specifically, the change rate acquisition module 201 and the control amount acquisition module 202 are electrically connected.
After the ending time of the previous first time domain is reached, the change rate obtaining module 201 may obtain the average change rate of the temperature of the previous first time domain according to the change condition of the temperature in the previous first time domain, and may obtain the average change rate of the temperature of the previous second time domain according to the change condition of the temperature in the previous second time domain.
The control quantity obtaining module 202 may determine a region where a difference e (k) between the end time temperature of the previous first time domain and the target temperature is located; if the difference e (k) is not in the stable period, the proportion and integral parts of the classical increment PID control can be reserved in the formation of the control formula, the differential part which is easy to generate the overexcitation oscillation is removed, and the increment is added
(ii) a And obtaining u (k) according to a control formula, and performing temperature control according to u (k).
The change rate acquisition module 201 may include:
and the narrow-region acquisition submodule is used for acquiring the average change rate of the temperature in the last first time region.
And the wide-range obtaining submodule is used for obtaining the average change rate of the temperature in the last second time range.
The narrow-area acquisition sub-module may include:
the first modeling unit is used for acquiring a temperature change model of the previous first time domain according to the temperature acquired at each sampling moment in the previous first time domain;
and the narrow-range obtaining unit is used for obtaining the average change rate of the temperature of the last first time range according to the temperature change model of the last first time range.
The wide-area acquisition submodule may include:
the second modeling unit is used for acquiring a temperature change model of the previous second time domain according to the average temperature of each first time domain included in the previous second time domain;
and the wide-range obtaining unit is used for obtaining the average change rate of the temperature of the last second time range according to the temperature change model of the last second time range.
And the first modeling unit is specifically used for fitting the temperature obtained at each sampling moment in the last first time domain based on a least square method to obtain a temperature change model of the last first time domain.
The narrow-area acquisition unit may include:
the first slope obtaining subunit is configured to obtain, according to the temperature change model of the previous first time domain, a temperature change rate at each sampling time in the previous first time domain;
and the first average slope obtaining subunit is configured to obtain an average change rate of the temperature in the previous first time domain according to the temperature change rate at each sampling time in the previous first time domain.
And the second modeling unit is specifically used for fitting the average temperature of each first time domain included in the previous second time domain based on a least square method to obtain a temperature change model of the previous second time domain.
The wide area acquisition unit may include:
the second slope obtaining subunit is configured to obtain, according to the temperature change model of the previous second time domain, wide-domain temperature change rates corresponding to the first time domains included in the previous second time domain;
and the second average slope obtaining subunit is configured to obtain an average change rate of the temperature in the previous second time domain according to the wide-domain temperature change rate corresponding to each first time domain included in the previous second time domain.
The temperature control device provided in the embodiment of the present invention is used for executing the temperature control method of the present invention, and the implementation manner of the temperature control device is consistent with that of the temperature control method provided in the present invention, and the same beneficial effects can be achieved, and details are not described here.
The temperature control device is used in the temperature control method of each of the foregoing embodiments. Therefore, the description and definition in the temperature control method in the foregoing embodiments can be used for understanding the execution modules in the embodiments of the present invention.
According to the embodiment of the invention, the control quantity of the next narrow time domain is obtained according to the average change rate of the temperatures of different time domains, the temperature control is carried out according to the control quantity of the next narrow time domain, the trend analysis is carried out on the temperature from the microcosmic aspect on the basis of the temperature of the first time domain, the increment can be rapidly adjusted, the trend analysis is carried out on the temperature from the macroscopic aspect on the basis of the second time domain, the control effect can be judged, the temperature trends of different time domains can be counted, the output can be timely adjusted, the aim of controlling the temperature more stably can be fulfilled, and the more stable and more accurate temperature control can be realized.
Fig. 3 illustrates a physical structure diagram of an electronic device, which may include, as shown in fig. 3: a processor (processor)310, a communication Interface (communication Interface)320, a memory (memory)330 and a communication bus 340, wherein the processor 310, the communication Interface 320 and the memory 330 communicate with each other via the communication bus 340. The processor 310 may invoke logic instructions stored in the memory 330 and executable on the processor 310 to perform the temperature control method provided by the various method embodiments described above, the method comprising: obtaining the average change rate of the temperature of the last first time domain and the last second time domain; if the temperature change is judged to be unstable according to the temperature of the last first time domain, acquiring the control quantity of the current first time domain according to the average change rate of the temperatures of the last first time domain and the last second time domain; the second time domain is composed of a preset number of first time domains.
In addition, the logic instructions in the memory 330 may be implemented in the form of software functional units and stored in a computer readable storage medium when the software functional units are sold or used as independent products. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The processor 310 in the electronic device provided in the embodiment of the present invention may call the logic instruction in the memory 330, and the implementation manner of the processor is consistent with the implementation manner of the temperature control method provided in the present invention, and the same beneficial effects may be achieved, and details are not described here.
In another aspect, an embodiment of the present invention further provides a computer program product, where the computer program product includes a computer program stored on a non-transitory computer-readable storage medium, the computer program includes program instructions, and when the program instructions are executed by a computer, the computer can execute the temperature control method provided by the above-mentioned method embodiments, where the method includes: obtaining the average change rate of the temperature of the last first time domain and the last second time domain; if the temperature change is judged to be unstable according to the temperature of the last first time domain, acquiring the control quantity of the current first time domain according to the average change rate of the temperatures of the last first time domain and the last second time domain; the second time domain is composed of a preset number of first time domains.
When the computer program product provided by the embodiment of the present invention is executed, the above-mentioned temperature control method is implemented, and the specific implementation manner of the method is consistent with the implementation manner described in the embodiment of the foregoing method, and the same beneficial effects can be achieved, which is not described herein again.
In yet another aspect, an embodiment of the present invention further provides a non-transitory computer-readable storage medium, on which a computer program is stored, where the computer program is implemented by a processor to execute the temperature control method provided in the foregoing embodiments, and the method includes: obtaining the average change rate of the temperature of the last first time domain and the last second time domain; if the temperature change is judged to be unstable according to the temperature of the last first time domain, acquiring the control quantity of the current first time domain according to the average change rate of the temperatures of the last first time domain and the last second time domain; the second time domain is composed of a preset number of first time domains.
When the computer program stored on the non-transitory computer readable storage medium provided in the embodiments of the present invention is executed, the temperature control method is implemented, and the specific implementation manner of the method is consistent with the implementation manner described in the embodiments of the method, and the same beneficial effects can be achieved, which is not described herein again.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A method of temperature control, comprising:
obtaining the average change rate of the temperature of the last first time domain and the last second time domain;
if the temperature change is judged to be unstable according to the temperature of the last first time domain, acquiring the control quantity of the current first time domain according to the average change rate of the temperatures of the last first time domain and the last second time domain;
the second time domain is composed of a preset number of first time domains.
2. The method according to claim 1, wherein the step of obtaining the average rate of change of the last first time domain temperature comprises:
acquiring a temperature change model of the previous first time domain according to the temperature acquired at each sampling moment in the previous first time domain;
and obtaining the average change rate of the temperature of the last first time domain according to the temperature change model of the last first time domain.
3. The temperature control method according to claim 1 or 2, wherein the step of obtaining the average change rate of the last second time domain temperature comprises:
acquiring a temperature change model of the previous second time domain according to the average temperature of each first time domain included in the previous second time domain;
and obtaining the average change rate of the temperature of the last second time domain according to the temperature change model of the last second time domain.
4. The method according to claim 2, wherein the step of obtaining the temperature change model of the previous first time domain according to the temperature obtained at each sampling time in the previous first time domain comprises:
and fitting the temperature obtained at each sampling moment in the last first time domain based on a least square method to obtain a temperature change model of the last first time domain.
5. The method according to claim 4, wherein the step of obtaining the average rate of change of the temperature in the last first time domain according to the model of the temperature change in the last first time domain comprises:
acquiring the temperature change rate of each sampling moment in the previous first time domain according to the temperature change model of the previous first time domain;
and acquiring the average change rate of the temperature of the last first time domain according to the temperature change rate of each sampling moment in the last first time domain.
6. The method according to claim 3, wherein the step of obtaining the temperature variation model of the previous second time domain according to the average temperature of each first time domain included in the previous second time domain comprises:
and fitting the average temperature of each first time domain included in the previous second time domain based on a least square method to obtain a temperature change model of the previous second time domain.
7. The method according to claim 6, wherein the step of obtaining the average change rate of the temperature in the previous second time domain according to the temperature change model in the previous second time domain comprises:
obtaining wide-range temperature change rates corresponding to the first time domains included in the previous second time domain according to the temperature change model of the previous second time domain;
and obtaining the average change rate of the temperature of the last second time domain according to the wide-range temperature change rate corresponding to each first time domain included in the last second time domain.
8. A temperature control apparatus, comprising:
the temperature control device comprises a change rate acquisition module, a temperature control module and a temperature control module, wherein the change rate acquisition module is used for acquiring the average change rate of the temperature of a last first time domain and a last second time domain;
the control quantity obtaining module is used for obtaining the control quantity of the current first time domain according to the average change rate of the temperatures of the previous first time domain and the previous second time domain if the temperature change is judged to be unstable according to the temperature of the previous first time domain;
the second time domain is composed of a preset number of first time domains.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the steps of the temperature control method according to any of claims 1 to 7 are implemented when the processor executes the program.
10. A non-transitory computer readable storage medium, on which a computer program is stored, wherein the computer program, when executed by a processor, implements the steps of the temperature control method according to any one of claims 1 to 7.
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