CN113110636A - Temperature control method and device based on temperature curve and related equipment - Google Patents
Temperature control method and device based on temperature curve and related equipment Download PDFInfo
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Abstract
The invention discloses a temperature control method, a temperature control device and related equipment based on a temperature curve, wherein the temperature control method based on the temperature curve comprises the following steps: acquiring an internal temperature curve and an external temperature curve of a target object; obtaining deviation data based on the internal temperature curve and the external temperature curve; acquiring internal temperature data of the target object in real time; and performing temperature control on the target object based on the internal temperature data and the deviation data. Compared with the scheme of carrying out negative feedback control on the heating element directly on the basis of the temperature trend measured by the temperature sensor in the prior art, the scheme of the invention obtains the deviation data of the internal temperature curve and the external temperature curve on the basis of the internal temperature curve and the external temperature curve, and carries out temperature control on the target object on the basis of the internal temperature data and the deviation data, thereby being beneficial to maintaining the constant temperature outside the heating element and improving the user experience.
Description
Technical Field
The invention relates to the technical field of control, in particular to a temperature control method and device based on a temperature curve and related equipment.
Background
With the rapid development of science and technology and the improvement of economic level, the demand of various tools (such as hair-dressing tools like hair straightener, hair curler, etc.) is gradually increasing. For tools such as hair straighteners and hair curlers provided with heating elements, users hope that the temperature of the tools can be effectively controlled in the using process, and the requirements of the users on the temperature are met. For example, in actual use, a user desires that the temperature of a tool such as a hair straightener or a hair curler is stabilized after the temperature is increased to a desired temperature, and a constant temperature state at the desired temperature is maintained.
Conventionally, a temperature sensor is generally provided inside a heating element of the tool, and negative feedback control is performed on the heating element based on a temperature profile measured by the temperature sensor. The problem of the prior art is that the temperature sensor arranged inside the heating element is far away from the surface of the heating element, and the measured temperature trend of the temperature sensor and the actual temperature trend of the surface of the heating element possibly have deviation, so that misjudgment can be caused during temperature control, the constant temperature point of the heating element is out of control, the constant temperature of the outside of the heating element is not maintained, and the user experience is influenced.
Thus, there is still a need for improvement and development of the prior art.
Disclosure of Invention
The invention mainly aims to provide a temperature control method, a temperature control device and related equipment based on a temperature curve, and aims to solve the problems that in the prior art, the scheme of carrying out negative feedback control on a heating element through the temperature trend measured by a temperature sensor can cause misjudgment during temperature control, so that the constant temperature point of the heating element is out of control, the constant temperature outside the heating element is not favorably maintained, and the user experience is influenced.
In order to achieve the above object, a first aspect of the present invention provides a temperature control method based on a temperature profile, wherein the method comprises:
acquiring an internal temperature curve and an external temperature curve of a target object;
obtaining deviation data based on the internal temperature curve and the external temperature curve;
acquiring internal temperature data of the target object in real time;
and performing temperature control on the target object based on the internal temperature data and the deviation data.
Optionally, the obtaining an internal temperature curve and an external temperature curve of the target object includes:
and testing the target object through a temperature cruise instrument, and recording an internal temperature curve and an external temperature curve of the target object.
Optionally, the obtaining deviation data based on the internal temperature curve and the external temperature curve includes:
and acquiring the difference value of the horizontal included angle of the internal temperature curve and the external temperature curve at the corresponding moment as the deviation data.
Optionally, the obtaining the internal temperature data of the target object in real time includes:
and acquiring internal temperature data of the target object in real time through a temperature sensor arranged in the target object.
Optionally, the performing temperature control on the target object based on the internal temperature data and the deviation data includes:
correcting the temperature reference data of the target object based on the internal temperature data and the deviation data to obtain target temperature reference data;
and performing temperature control on the target object based on the target temperature reference data.
Optionally, the correcting the temperature reference data of the target object based on the internal temperature data and the deviation data to obtain target temperature reference data includes:
acquiring temperature reference data corresponding to the internal temperature data;
and correcting the temperature reference data based on the deviation data to obtain target temperature reference data.
Optionally, the correcting the temperature reference data based on the deviation data to obtain target temperature reference data includes:
when the constant temperature section of the external temperature curve is in a descending trend, the value of the temperature reference data is increased based on the deviation data, and target temperature reference data is obtained;
and when the constant temperature section of the external temperature curve is in a rising trend, reducing the value of the temperature reference data based on the deviation data to obtain target temperature reference data.
A second aspect of the present invention provides a temperature control device based on a temperature profile, wherein the device comprises:
the temperature curve acquisition module is used for acquiring an internal temperature curve and an external temperature curve of the target object;
a deviation data acquisition module for acquiring deviation data based on the internal temperature curve and the external temperature curve;
the internal temperature data acquisition module is used for acquiring the internal temperature data of the target object in real time;
and the control module is used for carrying out temperature control on the target object based on the internal temperature data and the deviation data.
A third aspect of the present invention provides an intelligent terminal, where the intelligent terminal includes a memory, a processor, and a temperature control program stored in the memory and executable on the processor, and the temperature control program, when executed by the processor, implements any one of the steps of the temperature control method based on a temperature profile.
A fourth aspect of the present invention provides a computer-readable storage medium, wherein a temperature control program is stored on the computer-readable storage medium, and when the temperature control program is executed by a processor, the computer-readable storage medium implements any one of the steps of the temperature curve-based temperature control method.
As can be seen from the above, in the scheme of the present invention, an internal temperature curve and an external temperature curve of a target object are obtained; obtaining deviation data based on the internal temperature curve and the external temperature curve; acquiring internal temperature data of the target object in real time; and performing temperature control on the target object based on the internal temperature data and the deviation data. Compared with the scheme of performing negative feedback control on the heating element directly based on the temperature trend measured by the temperature sensor in the prior art, the scheme of the invention obtains the deviation data of the internal temperature curve and the external temperature curve based on the internal temperature curve and the external temperature curve, performs temperature control on the target object based on the internal temperature data and the deviation data, corrects the deviation of the measured temperature trend through the deviation data, and avoids causing misjudgment, thereby avoiding the out-of-control constant temperature point of the heating element, being beneficial to maintaining the constant temperature outside the heating element, and improving the user experience.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a schematic flow chart of a temperature control method based on a temperature curve according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating a detailed process of step S400 in FIG. 1 according to an embodiment of the present invention;
FIG. 3 is a flowchart illustrating a detailed process of step S401 in FIG. 2 according to an embodiment of the present invention;
FIG. 4 is a flowchart illustrating the step S4012 in FIG. 3 according to an embodiment of the present invention;
FIG. 5 is a schematic view of an internal module of a hair straightener provided by an embodiment of the present invention;
FIG. 6 is a schematic diagram showing a deviation between an internal temperature curve and an external temperature curve of a heat-generating body obtained by a test according to an embodiment of the present invention;
FIG. 7 is a schematic view showing an internal temperature curve and an external temperature curve of a heating body after temperature control based on a temperature curve according to an embodiment of the present invention;
FIG. 8 is a schematic structural diagram of a temperature control device based on a temperature curve according to an embodiment of the present invention;
fig. 9 is a schematic block diagram of an internal structure of an intelligent terminal according to an embodiment of the present invention.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
As used in this specification and the appended claims, the term "if" may be interpreted contextually as "when …" or "upon" or "in response to a determination" or "in response to a detection". Similarly, the phrase "if it is determined" or "if a [ described condition or event ] is detected" may be interpreted depending on the context to mean "upon determining" or "in response to determining" or "upon detecting [ described condition or event ]" or "in response to detecting [ described condition or event ]".
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings of the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
With the rapid development of science and technology and the improvement of economic level, the demand of various tools (such as hair-dressing tools like hair straightener, hair curler, etc.) is gradually increasing. For tools such as hair straighteners and hair curlers provided with heating elements, users hope that the temperature of the tools can be effectively controlled in the using process, and the requirements of the users on the temperature are met. For example, in actual use, a user desires that the temperature of a tool such as a hair straightener or a hair curler is stabilized after the temperature is increased to a desired temperature, and a constant temperature state at the desired temperature is maintained.
Conventionally, a temperature sensor (or other temperature sensing element) is usually disposed inside a heating element of the tool, the temperature sensor detects the temperature inside the heating element, the power of the heating element is adjusted and controlled based on the trend change of the temperature, and the temperature outside the heating element is maintained by adjusting the temperature inside the heating element. Specifically, the temperature of the heating element is negatively fed back and controlled by a Micro Controller Unit (MCU) provided in the tool.
However, for some tools, especially for products such as hair straighteners and hair curlers provided with large heating elements, due to the particularity of the structure and assembly of the heating elements, the deviation phenomenon of the inside and outside temperature curves of the products may occur, that is, the deviation of the temperature curve of the position monitored by the temperature sensor inside the heating element from the actual temperature curve outside the heating element may occur. Specifically, due to the limitation of structural design, the temperature sensor of the product is often far away from the surface of the heating body, so that the ambient temperature of the temperature sensor and the surface temperature trend of the heating body are deviated, and the temperature of the surface of the heating body cannot be accurately and timely fed back to the MCU by the sensor, so that the MCU generates misjudgment. Therefore, the MCU cannot accurately control the temperature, and the actual temperature overshoot and the out-of-control constant temperature point of the product are easily caused. Wherein, the temperature overshoot occurs in the climbing stage before the external temperature of the heating element enters the constant temperature stage, and the temperature exceeds the upper limit value of the temperature. The out-of-control constant temperature point means that the temperature can not be locked in the constant temperature stage of the heating element, so that the temperature breaks through the upper limit or the lower limit of the constant temperature interval. Therefore, the problem of the prior art is that the temperature sensor disposed inside the heating element is far away from the surface of the heating element, and there may be a deviation between the measured temperature trend and the actual temperature trend of the surface of the heating element, so that a misjudgment may be caused during temperature control, and thus a constant temperature point of the heating element is out of control, which is not beneficial to maintaining the constant temperature outside the heating element and affects user experience.
In order to solve the problems of the prior art, the invention provides a temperature control method based on a temperature curve, and in the embodiment of the invention, an internal temperature curve and an external temperature curve of a target object are obtained; obtaining deviation data based on the internal temperature curve and the external temperature curve; acquiring internal temperature data of the target object in real time; and performing temperature control on the target object based on the internal temperature data and the deviation data. Compared with the scheme of performing negative feedback control on the heating element directly based on the temperature trend measured by the temperature sensor in the prior art, the scheme of the invention obtains the deviation data of the internal temperature curve and the external temperature curve based on the internal temperature curve and the external temperature curve, performs temperature control on the target object based on the internal temperature data and the deviation data, corrects the deviation of the measured temperature trend through the deviation data, and avoids causing misjudgment, thereby avoiding the out-of-control constant temperature point of the heating element, being beneficial to maintaining the constant temperature outside the heating element, and improving the user experience.
Exemplary method
As shown in fig. 1, an embodiment of the present invention provides a temperature control method based on a temperature curve, and specifically, the method includes the following steps:
step S100, an internal temperature curve and an external temperature curve of the target object are acquired.
Wherein the target is a heating element requiring temperature control. Further, the heating element may be one that needs to be controlled to a corresponding constant temperature point. Optionally, in this embodiment, the target object may be a heating element in a hair curler or a hair straightener, or may be a heating element in another tool in an actual use process, which is not specifically limited herein. The internal temperature profile is a temperature change profile of the inside of the heating element, and the external temperature profile is a temperature change profile of the surface of the heating element.
Step S200, obtaining deviation data based on the internal temperature curve and the external temperature curve.
Wherein the deviation data is data representing a difference in trend between the internal temperature profile and the external temperature profile. Specifically, when the inner temperature curve and the outer temperature curve do not run in parallel, the two curves may be considered to deviate from each other. Optionally, the deviation data may include time and corresponding temperature offset.
Step S300, acquiring the internal temperature data of the target object in real time.
Step S400, performing temperature control on the target object based on the internal temperature data and the deviation data.
Specifically, the internal temperature data of the heating element is acquired in real time, and the power of the target object can be controlled according to the internal temperature data and the corresponding deviation data, so that the temperature of the target object is controlled.
As can be seen from the above, the temperature control method based on the temperature curve provided in the embodiment of the present invention obtains the internal temperature curve and the external temperature curve of the target object; obtaining deviation data based on the internal temperature curve and the external temperature curve; acquiring internal temperature data of the target object in real time; and performing temperature control on the target object based on the internal temperature data and the deviation data. Compared with the scheme of performing negative feedback control on the heating element directly based on the temperature trend measured by the temperature sensor in the prior art, the scheme of the invention obtains the deviation data of the internal temperature curve and the external temperature curve based on the internal temperature curve and the external temperature curve, performs temperature control on the target object based on the internal temperature data and the deviation data, corrects the deviation of the measured temperature trend through the deviation data, and avoids causing misjudgment, thereby avoiding the out-of-control constant temperature point of the heating element, being beneficial to maintaining the constant temperature outside the heating element, and improving the user experience.
Specifically, in this embodiment, the step S100 includes: and testing the target object through a temperature cruise instrument, and recording an internal temperature curve and an external temperature curve of the target object.
Specifically, the heating element may be tested by a temperature cruise instrument in advance, and an internal temperature curve and an external temperature curve of the heating element may be recorded, wherein the internal temperature curve and the external temperature curve are respectively an internal temperature and an external temperature that change with a start time of the heating element. Optionally, the heating element may also be tested by other temperature testing devices, which is not specifically limited herein.
Optionally, when the target object includes a plurality of heat-generating gears, each gear may be tested, an internal temperature curve and an external temperature curve at the gear are obtained, and temperature control is performed based on each gear. In this embodiment, one gear is taken as an example for explanation, and in actual use, for the temperature control method of other gears, reference may be made to the specific method in the embodiment of the present invention, which is not specifically limited herein.
Specifically, in this embodiment, the step S200 includes: and acquiring the difference value of the horizontal included angle of the internal temperature curve and the external temperature curve at the corresponding moment as the deviation data.
The difference between the horizontal included angles of the internal temperature curve and the external temperature curve at the corresponding time is specifically a difference between the horizontal included angle of the internal temperature curve and the horizontal included angle of the external temperature curve at a target time after the internal temperature curve and the external temperature curve obtained by testing the heating element are started for the same duration. The horizontal included angle of the internal temperature curve is an included angle between the internal temperature curve after the moment and the horizontal direction by taking a point on the internal temperature curve at the moment as a vertex. The horizontal included angle of the external temperature curve is an included angle between the external temperature curve after the moment and the horizontal direction, wherein a point on the external temperature curve at the moment is taken as a vertex. The target time may be preset, or may be set and adjusted according to actual requirements, which is not specifically limited herein. For example, the corresponding target time may be obtained based on the total time length when the heating element is tested and a preset time interval, or the corresponding target time may be obtained based on the actual start-up time length of the heating element when the temperature needs to be performed.
Optionally, the deviation data may further include time, specifically, time corresponding to the starting duration of the heating element. And combining the corresponding time in the internal temperature curve and the external temperature curve and the difference value of the horizontal included angle of the internal temperature curve and the external temperature curve at the time corresponding to the time into deviation data. Therefore, the corresponding deviation data can be searched according to the starting duration of the heating element. On this basis, the deviation data may be a temperature deviation amount based on a time change, the time corresponds to the time of the internal temperature curve and the time of the external temperature curve, the deviation data may also be stored in a curve form, and the deviation data may be stored in a deviation database so as to be searched and obtained.
Specifically, in this embodiment, the step S300 includes: and acquiring internal temperature data of the target object in real time through a temperature sensor arranged in the target object.
In this embodiment, a temperature sensor is provided inside the heating element, and the internal temperature of the heating element is monitored and fed back in real time. Optionally, other devices for measuring temperature may be further disposed inside the heating element to monitor and feed back the internal temperature, which is not limited herein.
Specifically, in this embodiment, as shown in fig. 2, the step S400 includes:
step S401 corrects the temperature reference data of the target object based on the internal temperature data and the deviation data to obtain target temperature reference data.
In step S402, temperature control is performed on the target object based on the target temperature reference data.
The temperature reference data is data of a preset temperature of the target object corresponding to each gear. For example, if a certain gear of the target object is 200 degrees celsius, the corresponding temperature reference data may include 200 degrees celsius and a corresponding temperature control scheme, such as the power of the corresponding heating element or the number of ac half cycles of the operation of the heating element. The temperature reference data may only include the temperature corresponding to the constant temperature point of each gear, and the specific temperature control scheme may be calculated by the MCU. Specifically, the temperature reference data may be measured in advance by a developer (e.g., a software engineer) and stored, so as to realize temperature control of the heating element. Optionally, the temperature reference data may be stored in a temperature reference database in advance, and is not limited specifically herein.
Specifically, in this embodiment, as shown in fig. 3, the step S401 includes:
step S4011, temperature reference data corresponding to the internal temperature data is acquired.
And step S4012, correcting the temperature reference data based on the deviation data to obtain target temperature reference data.
Specifically, temperature reference data corresponding to the shift position of the heating element and the current internal temperature data is acquired, the temperature reference data is corrected based on the corresponding deviation data, and the corrected temperature reference data is used as target reference data.
Specifically, in this embodiment, as shown in fig. 4, the step S4012 includes:
and a step S40121, when the constant temperature section of the external temperature curve is in a descending trend, increasing the value of the temperature reference data based on the deviation data to obtain target temperature reference data.
Step S40122, when the constant temperature section of the external temperature curve is in the rising trend, decreasing the value of the temperature reference data based on the deviation data to obtain target temperature reference data.
The external temperature curve comprises a temperature rising section and a constant temperature section, the temperature of the heating body rises rapidly in the temperature rising section, the heating body enters the constant temperature section after reaching the temperature corresponding to the preset gear, the temperature change is gentle, and the temperature is basically kept constant. The constant temperature section may be determined according to a change rate (e.g., a slope) of an external temperature curve, for example, a constant temperature section with a slope lower than a preset slope threshold on the curve is determined. When the constant temperature section of the external temperature curve is in a descending trend, namely the temperature of the external temperature curve in the constant temperature section is reduced along with the increase of time, the value of the temperature reference data can be increased, for example, the number of alternating current half cycles of the operation of the heating element is increased, the target temperature reference data is obtained, and therefore the power of the heating element is increased, and further the temperature is increased. When the constant temperature section of the external temperature is in a rising trend, that is, when the temperature of the external temperature curve rises along with the increase of the time, the value of the temperature reference data can be reduced, for example, the number of alternating current half cycles of the operation of the heating element is reduced, the target temperature reference data is obtained, and therefore the power of the heating element is reduced, and further the temperature is reduced.
Optionally, a temperature offset corresponding to the current time in the deviation data may also be obtained, where the temperature offset may be an offset between an actual difference between an external temperature curve and an internal temperature curve corresponding to the current time and an ideal difference between the external temperature curve and the internal temperature curve in an ideal state (i.e., when no deviation occurs). For example, in an ideal state, the difference between the external temperature curve and the internal temperature curve in the constant temperature section is 20 degrees celsius, and when the difference between the external temperature curve and the internal temperature curve at the current time is 10 degrees celsius during actual measurement, the corresponding temperature offset is 10 degrees celsius. When the constant temperature section of the external temperature curve is in a descending trend, the temperature offset is added to the value of the corresponding reference temperature in the temperature reference data, and when the constant temperature section of the external temperature curve is in an ascending trend, the temperature offset is subtracted from the value of the corresponding reference temperature in the temperature reference data, so that the corresponding target reference temperature is obtained, and the regulation data (such as the power of the heating body corresponding to the target reference temperature) corresponding to the target reference temperature is obtained and used as the target reference data. Therefore, the power of the heating body is adjusted according to the trend of the external temperature curve, so that the external temperature tends to be constant and cannot be influenced by the deviation of the internal temperature curve and the external temperature curve.
Optionally, in step S402, the driving unit of the heating element is controlled by the MCU based on the corrected target temperature reference data. The driving unit consists of silicon controlled rectifier related elements and is used for driving the heating element (load) to be switched on or switched off. Specifically, the MCU can be used for adjusting the wave loss rate of the heating element based on the target temperature reference data, namely controlling the number of alternating current half cycles of the work of the heating element to adjust the power of the heating element, thereby controlling the temperature of the heating element.
In this embodiment, the temperature control method based on the temperature curve is further described based on a specific application scenario. Fig. 5 is a schematic diagram of an internal module of a hair straightener (or a hair curler) according to an embodiment of the present invention, and as shown in fig. 5, the hair straightener includes an MCU, a driving output unit, a heating element, and a heating element internal temperature monitoring unit. The MCU is provided with an internal and external temperature curve deviation database for storing deviation data, a temperature reference database for storing temperature reference data and an MCU operation control unit for operation control. Specifically, the heating body is tested firstly, an internal temperature curve and an external temperature curve of the test are obtained, deviation data are obtained, and the deviation data are stored in an internal temperature curve and external temperature curve deviation database. Fig. 6 is a schematic diagram showing a deviation between an internal temperature curve and an external temperature curve of a heating element obtained through a test according to an embodiment of the present invention, and as shown in fig. 6, in a test in which temperature control based on a temperature curve is not performed, the external temperature curve and the internal temperature curve of the heating element are not parallel in a constant temperature section, a deviation phenomenon occurs, and the constant temperature section of the external temperature curve of the heating element tends to fall. In the application scenario, the temperature of the heating element is controlled based on the temperature control method based on the temperature curve. The temperature inside the heating body is monitored in real time through the temperature monitoring unit inside the heating body and fed back to the MCU. And the MCU reads the temperature reference data and automatically corrects the temperature reference data by utilizing the deviation data in the deviation database of the internal and external temperature curves to obtain target temperature reference data. The MCU operation control unit controls the drive output unit through the target temperature reference data, so that the power of the heating body is controlled, indirect compensation is formed on the external temperature of the heating body, the purpose of controlling the external temperature of the heating body is achieved, and finally the external temperature of the heating body reaches a stable and constant state to meet the constant temperature requirement of a user on a product. FIG. 7 is a schematic view showing an internal temperature curve and an external temperature curve of a heat-generating body after temperature control based on a temperature curve according to an embodiment of the present invention, and as shown in FIG. 7, the external temperature curve of the heat-generating body tends to be stable and constant after temperature control based on a temperature curve. Specifically, in the embodiment of the present invention, a step-type compensation increasing scheme is adopted for an internal constant temperature base point in a temperature reference database based on the deviation data, and the purpose of correcting an external temperature curve is achieved by correcting the internal temperature curve, so that the external temperature of the heating element is controlled, and the external temperature of the heating element is kept constant. The internal constant temperature base point, that is, the temperature setting value of each gear in the temperature reference data, may be actually measured and stored by a developer during the development period, and is used to control the constant temperature point corresponding to each gear. As shown in fig. 6, since the external temperature curve becomes deeper as time goes by in the constant temperature section of the external curve, the temperature compensation value is gradually increased as time goes by when the temperature control is performed based on the temperature control method based on the temperature curve.
Exemplary device
As shown in fig. 8, corresponding to the temperature control method based on the temperature profile, an embodiment of the present invention further provides a temperature control device based on a temperature profile, where the temperature control device based on a temperature profile includes:
a temperature profile obtaining module 510 for obtaining an internal temperature profile and an external temperature profile of the target object.
Wherein the target is a heating element requiring temperature control. Further, the heating element may be one that needs to be controlled to a corresponding constant temperature point. Optionally, in this embodiment, the target object may be a heating element in a hair curler or a hair straightener, or may be a heating element in another tool in an actual use process, which is not specifically limited herein. The internal temperature profile is a temperature change profile of the inside of the heating element, and the external temperature profile is a temperature change profile of the surface of the heating element.
A deviation data acquiring module 520, configured to acquire deviation data based on the internal temperature curve and the external temperature curve.
Wherein the deviation data is data representing a difference in trend between the internal temperature profile and the external temperature profile. Specifically, when the inner temperature curve and the outer temperature curve do not run in parallel, the two curves may be considered to deviate from each other. Optionally, the deviation data may include time and corresponding temperature offset.
An internal temperature data obtaining module 530, configured to obtain the internal temperature data of the target object in real time.
A control module 540, configured to perform temperature control on the target object based on the internal temperature data and the deviation data.
Specifically, the internal temperature data of the heating element is acquired in real time, and the power of the target object can be controlled according to the internal temperature data and the corresponding deviation data, so that the temperature of the target object is controlled.
As can be seen from the above, in the temperature control apparatus based on a temperature curve provided in the embodiment of the present invention, the temperature curve obtaining module 510 obtains an internal temperature curve and an external temperature curve of the target object; acquiring deviation data based on the internal temperature curve and the external temperature curve through a deviation data acquisition module 520; acquiring internal temperature data of the target object in real time through the internal temperature data acquisition module 530; the target object is temperature-controlled by the control module 540 based on the internal temperature data and the deviation data. Compared with the scheme of performing negative feedback control on the heating element directly based on the temperature trend measured by the temperature sensor in the prior art, the scheme of the invention obtains the deviation data of the internal temperature curve and the external temperature curve based on the internal temperature curve and the external temperature curve, performs temperature control on the target object based on the internal temperature data and the deviation data, corrects the deviation of the measured temperature trend through the deviation data, and avoids causing misjudgment, thereby avoiding the out-of-control constant temperature point of the heating element, being beneficial to maintaining the constant temperature outside the heating element, and improving the user experience.
Optionally, in this embodiment, the temperature curve obtaining module 510 is specifically configured to: and testing the target object through a temperature cruise instrument, and recording an internal temperature curve and an external temperature curve of the target object. Specifically, the heating element may be tested by a temperature cruise instrument in advance, and an internal temperature curve and an external temperature curve of the heating element may be recorded, wherein the internal temperature curve and the external temperature curve are respectively an internal temperature and an external temperature that change with a start time of the heating element. Optionally, other temperature testing devices may also be controlled to test the heating element, which is not specifically limited herein.
Optionally, when the target object includes a plurality of heat-generating gears, each gear may be tested, an internal temperature curve and an external temperature curve at the gear are obtained, and temperature control is performed based on each gear. In this embodiment, one gear is taken as an example for explanation, and in actual use, for the temperature control method of other gears, reference may be made to the specific method in the embodiment of the present invention, which is not specifically limited herein.
Optionally, in this embodiment, the deviation data obtaining module 520 is specifically configured to: and acquiring the difference value of the horizontal included angle of the internal temperature curve and the external temperature curve at the corresponding moment as the deviation data.
The difference between the horizontal included angles of the internal temperature curve and the external temperature curve at the corresponding time is specifically a difference between the horizontal included angle of the internal temperature curve and the horizontal included angle of the external temperature curve at a target time after the internal temperature curve and the external temperature curve obtained by testing the heating element are started for the same duration. The horizontal included angle of the internal temperature curve is an included angle between the internal temperature curve after the moment and the horizontal direction by taking a point on the internal temperature curve at the moment as a vertex. The horizontal included angle of the external temperature curve is an included angle between the external temperature curve after the moment and the horizontal direction, wherein a point on the external temperature curve at the moment is taken as a vertex. The target time may be preset, or may be set and adjusted according to actual requirements, which is not specifically limited herein. For example, the corresponding target time may be obtained based on the total time length when the heating element is tested and a preset time interval, or the corresponding target time may be obtained based on the actual start-up time length of the heating element when the temperature needs to be performed.
Optionally, the deviation data may further include time, specifically, time corresponding to the starting duration of the heating element. And combining the corresponding time in the internal temperature curve and the external temperature curve and the difference value of the horizontal included angle of the internal temperature curve and the external temperature curve at the time corresponding to the time into deviation data. Therefore, the corresponding deviation data can be searched according to the starting duration of the heating element. On this basis, the deviation data may be a temperature deviation amount based on a time change, the time corresponds to the time of the internal temperature curve and the time of the external temperature curve, the deviation data may also be stored in a curve form, and the deviation data may be stored in a deviation database so as to be searched and obtained.
Optionally, in this embodiment, the internal temperature data obtaining module 530 is specifically configured to: and acquiring internal temperature data of the target object in real time through a temperature sensor arranged in the target object.
In this embodiment, a temperature sensor is provided inside the heating element, and the internal temperature of the heating element is monitored and fed back in real time. Optionally, other devices for measuring temperature may be further disposed inside the heating element to monitor and feed back the internal temperature, which is not limited herein.
Optionally, in this embodiment, the control module 540 is specifically configured to: correcting the temperature reference data of the target object based on the internal temperature data and the deviation data to obtain target temperature reference data; and performing temperature control on the target object based on the target temperature reference data.
The temperature reference data is data of a preset temperature of the target object corresponding to each gear. For example, if a certain gear of the target object is 200 degrees celsius, the corresponding temperature reference data may include 200 degrees celsius and a corresponding temperature control scheme, such as the power of the corresponding heating element or the number of ac half cycles of the operation of the heating element. The temperature reference data may only include the temperature corresponding to the constant temperature point of each gear, and the specific temperature control scheme may be calculated by the MCU. Specifically, the temperature reference data may be measured in advance by a developer (e.g., a software engineer) and stored, so as to realize temperature control of the heating element. Optionally, the temperature reference data may be stored in a temperature reference database in advance, and is not limited specifically herein.
Optionally, in this embodiment, the control module 540 is specifically configured to: acquiring temperature reference data corresponding to the internal temperature data; and correcting the temperature reference data based on the deviation data to obtain target temperature reference data.
Specifically, temperature reference data corresponding to the shift position of the heating element and the current internal temperature data is acquired, the temperature reference data is corrected based on the corresponding deviation data, and the corrected temperature reference data is used as target reference data.
Specifically, the control module 540 is configured to: when the constant temperature section of the external temperature curve is in a descending trend, the value of the temperature reference data is increased based on the deviation data, and target temperature reference data is obtained; and when the constant temperature section of the external temperature curve is in a rising trend, reducing the value of the temperature reference data based on the deviation data to obtain target temperature reference data.
The external temperature curve comprises a temperature rising section and a constant temperature section, the temperature of the heating body rises rapidly in the temperature rising section, and enters the constant temperature section after reaching the temperature corresponding to the preset gear, so that the temperature change is gentle and basically kept constant. The constant temperature section may be determined according to a change rate (e.g., a slope) of an external temperature curve, for example, a constant temperature section with a slope lower than a preset slope threshold on the curve is determined. When the constant temperature section of the external temperature curve is in a descending trend, namely the temperature of the external temperature curve in the constant temperature section is reduced along with the increase of time, the value of the temperature reference data can be increased, for example, the number of alternating current half cycles of the operation of the heating element is increased, the target temperature reference data is obtained, and therefore the power of the heating element is increased, and further the temperature is increased. When the constant temperature section of the external temperature is in a rising trend, that is, when the temperature of the external temperature curve rises along with the increase of the time, the value of the temperature reference data can be reduced, for example, the number of alternating current half cycles of the operation of the heating element is reduced, the target temperature reference data is obtained, and therefore the power of the heating element is reduced, and further the temperature is reduced.
Optionally, a temperature offset corresponding to the current time in the deviation data may also be obtained, where the temperature offset may be an offset between an actual difference between an external temperature curve and an internal temperature curve corresponding to the current time and an ideal difference between the external temperature curve and the internal temperature curve in an ideal state (i.e., when no deviation occurs). For example, in an ideal state, the difference between the external temperature curve and the internal temperature curve in the constant temperature section is 20 degrees celsius, and when the difference between the external temperature curve and the internal temperature curve at the current time is 10 degrees celsius during actual measurement, the corresponding temperature offset is 10 degrees celsius. When the constant temperature section of the external temperature curve is in a descending trend, the temperature offset is added to the value of the corresponding reference temperature in the temperature reference data, and when the constant temperature section of the external temperature curve is in an ascending trend, the temperature offset is subtracted from the value of the corresponding reference temperature in the temperature reference data, so that the corresponding target reference temperature is obtained, and the regulation data (such as the power of the heating body corresponding to the target reference temperature) corresponding to the target reference temperature is obtained and used as the target reference data. Therefore, the power of the heating body is adjusted according to the trend of the external temperature curve, so that the external temperature tends to be constant and cannot be influenced by the deviation of the internal temperature curve and the external temperature curve.
Optionally, in this embodiment, the control module 540 is further specifically configured to: and controlling a driving unit of the heating element through the MCU based on the corrected target temperature reference data. The driving unit consists of silicon controlled rectifier related elements and is used for driving the heating element (load) to be switched on or switched off. Specifically, the MCU can be used for adjusting the wave loss rate of the heating element based on the target temperature reference data, namely controlling the number of alternating current half cycles of the work of the heating element to adjust the power of the heating element, thereby controlling the temperature of the heating element.
Based on the above embodiment, the present invention further provides an intelligent terminal, and a schematic block diagram thereof may be as shown in fig. 9. The intelligent terminal comprises a processor, a memory, a network interface and a display screen which are connected through a system bus. Wherein, the processor of the intelligent terminal is used for providing calculation and control capability. The memory of the intelligent terminal comprises a nonvolatile storage medium and an internal memory. The nonvolatile storage medium stores an operating system and a temperature control program. The internal memory provides an environment for the operation of an operating system and a temperature control program in the nonvolatile storage medium. The network interface of the intelligent terminal is used for being connected and communicated with an external terminal through a network. The temperature control program when executed by the processor implements the steps of any of the temperature profile-based temperature control methods described above. The display screen of the intelligent terminal can be a liquid crystal display screen or an electronic ink display screen.
It will be understood by those skilled in the art that the block diagram of fig. 9 is only a block diagram of a part of the structure related to the solution of the present invention, and does not constitute a limitation to the intelligent terminal to which the solution of the present invention is applied, and a specific intelligent terminal may include more or less components than those shown in the figure, or combine some components, or have different arrangements of components.
In one embodiment, an intelligent terminal is provided, where the intelligent terminal includes a memory, a processor, and a temperature control program stored in the memory and executable on the processor, and the temperature control program performs the following operation instructions when executed by the processor:
acquiring an internal temperature curve and an external temperature curve of a target object;
obtaining deviation data based on the internal temperature curve and the external temperature curve;
acquiring internal temperature data of the target object in real time;
and performing temperature control on the target object based on the internal temperature data and the deviation data.
An embodiment of the present invention further provides a computer-readable storage medium, where a temperature control program is stored on the computer-readable storage medium, and when the temperature control program is executed by a processor, the steps of any one of the temperature control methods based on a temperature curve provided in the embodiment of the present invention are implemented.
It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the functional units and modules are described as examples, and in practical applications, the functions may be distributed as required by different functional units and modules, that is, the internal structure of the apparatus may be divided into different functional units or modules to implement all or part of the functions described above. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
Those of ordinary skill in the art would appreciate that the elements and algorithm steps of the examples described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus/terminal device and method may be implemented in other ways. For example, the above-described embodiments of the apparatus/terminal device are merely illustrative, and for example, the division of the above modules or units is only one logical division, and the actual implementation may be implemented by another division, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed.
The integrated modules/units described above, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium. Based on such understanding, all or part of the flow in the method according to the embodiments of the present invention may also be implemented by a computer program, which may be stored in a computer-readable storage medium and used by a processor to implement the steps of the embodiments of the method. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like. It should be noted that the contents contained in the computer-readable storage medium can be increased or decreased as appropriate according to the requirements of legislation and patent practice in the jurisdiction.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art; the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein.
Claims (10)
1. A method for temperature control based on a temperature profile, the method comprising:
acquiring an internal temperature curve and an external temperature curve of a target object;
obtaining deviation data based on the internal temperature profile and the external temperature profile;
acquiring internal temperature data of the target object in real time;
performing temperature control on the target object based on the internal temperature data and the deviation data.
2. The temperature profile-based temperature control method of claim 1, wherein the obtaining an internal temperature profile and an external temperature profile of the target object comprises:
and testing the target object through a temperature cruise instrument, and recording an internal temperature curve and an external temperature curve of the target object.
3. The temperature profile-based temperature control method of claim 1, wherein the obtaining deviation data based on the internal temperature profile and the external temperature profile comprises:
and acquiring the difference value of the horizontal included angle of the internal temperature curve and the horizontal included angle of the external temperature curve at the corresponding moment as the deviation data.
4. The temperature profile-based temperature control method according to claim 1, wherein the acquiring internal temperature data of the target object in real time includes:
and acquiring internal temperature data of the target object in real time through a temperature sensor arranged in the target object.
5. The temperature profile-based temperature control method of claim 1, wherein the temperature controlling the target object based on the internal temperature data and the deviation data comprises:
correcting the temperature reference data of the target object based on the internal temperature data and the deviation data to obtain target temperature reference data;
and performing temperature control on the target object based on the target temperature reference data.
6. The temperature control method based on the temperature profile according to claim 5, wherein the correcting the temperature reference data of the target object based on the internal temperature data and the deviation data to obtain target temperature reference data comprises:
acquiring temperature reference data corresponding to the internal temperature data;
and correcting the temperature reference data based on the deviation data to obtain target temperature reference data.
7. The temperature control method based on the temperature profile according to claim 6, wherein the correcting the temperature reference data based on the deviation data to obtain target temperature reference data comprises:
when the constant temperature section of the external temperature curve is in a descending trend, the value of the temperature reference data is increased based on the deviation data, and target temperature reference data is obtained;
and when the constant temperature section of the external temperature curve is in a rising trend, reducing the value of the temperature reference data based on the deviation data to obtain target temperature reference data.
8. A temperature control apparatus based on a temperature profile, the apparatus comprising:
the temperature curve acquisition module is used for acquiring an internal temperature curve and an external temperature curve of the target object;
a deviation data acquisition module for acquiring deviation data based on the internal temperature curve and the external temperature curve;
the internal temperature data acquisition module is used for acquiring the internal temperature data of the target object in real time;
a control module for performing temperature control on the target object based on the internal temperature data and the deviation data.
9. An intelligent terminal, characterized in that the intelligent terminal comprises a memory, a processor and a temperature control program stored on the memory and operable on the processor, wherein the temperature control program, when executed by the processor, implements the steps of the temperature profile-based temperature control method according to any one of claims 1 to 7.
10. A computer-readable storage medium, having a temperature control program stored thereon, which when executed by a processor, performs the steps of the temperature profile-based temperature control method according to any one of claims 1 to 7.
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| CN107763677A (en) * | 2017-09-28 | 2018-03-06 | 上海纯米电子科技有限公司 | The accurate temperature control method of cooking apparatus |
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