CN108279719B - Temperature control method and device - Google Patents
Temperature control method and device Download PDFInfo
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- CN108279719B CN108279719B CN201810089158.9A CN201810089158A CN108279719B CN 108279719 B CN108279719 B CN 108279719B CN 201810089158 A CN201810089158 A CN 201810089158A CN 108279719 B CN108279719 B CN 108279719B
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
- G05D23/24—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor
Abstract
The embodiment of the invention provides a temperature control method and device. In one embodiment, the temperature control method includes: acquiring the current temperature acquired by the temperature acquisition equipment at a specified time node; calculating the temperature difference between the current temperature and a preset target temperature; calculating to obtain a control value according to the temperature difference and a preset initialization parameter; and sending the control value to the temperature adjusting equipment so that the temperature adjusting equipment heats according to the control value.
Description
Technical Field
The invention relates to the field of temperature control, in particular to a temperature control method and device.
Background
In the aspect of temperature control, a thermistor temperature control is adopted in a temperature control algorithm commonly used at home and abroad, the structure is simple and convenient, but the temperature control precision is far insufficient to adapt to the temperature control required in some scenes with higher quality requirements.
Disclosure of Invention
In view of the above, an object of the embodiments of the present invention is to provide a temperature control method and apparatus.
The temperature control method provided by the embodiment of the invention is applied to control equipment, and the control equipment is in communication connection with temperature acquisition equipment and temperature regulation equipment; the temperature control method comprises the following steps:
acquiring the current temperature acquired by the temperature acquisition equipment at a specified time node;
calculating the temperature difference between the current temperature and a preset target temperature;
calculating to obtain a control value according to the temperature difference and a preset initialization parameter; and
and sending the control value to the temperature adjusting equipment so that the temperature adjusting equipment carries out heating according to the control value.
The embodiment of the invention also provides a temperature control device, which is applied to the control equipment, wherein the control equipment is in communication connection with the temperature acquisition equipment and the temperature regulation equipment; the temperature control device includes:
the temperature acquisition module is used for acquiring the current temperature acquired by the temperature acquisition equipment at a specified time node;
the temperature difference calculation module is used for calculating the temperature difference between the current temperature and a preset target temperature;
the control value calculating module is used for calculating to obtain a control value according to the temperature difference and a preset initialization parameter; and
and the control value sending module is used for sending the control value to the temperature adjusting equipment so as to heat the temperature adjusting equipment according to the control value.
Compared with the prior art, the temperature control method and the temperature control device provided by the embodiment of the invention have the advantages that the temperature difference between the current temperature and the preset target temperature is utilized; calculating to obtain a control value according to the temperature difference and a preset initialization parameter; the temperature adjusting device is enabled to use the control value to adjust the temperature, so that the adjusted temperature can meet the actual requirement, and the adjusted temperature is more accurate.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic diagram illustrating interaction between a control device and other devices according to an embodiment of the present invention.
Fig. 2 is a block diagram of a control device according to an embodiment of the present invention.
Fig. 3 is a flowchart of a temperature control method according to an embodiment of the present invention.
Fig. 4 is a partial flowchart of an embodiment of a temperature control method according to an embodiment of the present invention.
Fig. 5 is a partial flowchart of another embodiment of a temperature control method according to an embodiment of the present invention.
Fig. 6 is a partial flowchart of a temperature control method according to still another embodiment of the present invention.
FIG. 7 is a schematic diagram of the temperature measured during the PID temperature control cycle in one example of the simulation.
Fig. 8 is a schematic diagram of functional modules of a temperature control device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present invention, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.
Fig. 1 is a schematic diagram illustrating interaction between a control device and other devices according to a preferred embodiment of the present invention. The control device 100 is in communication connection with one or more temperature collection devices 200 and temperature adjustment devices 300 through a network to perform data communication or interaction. The control device 100 may be a network server, a database server, or a Personal Computer (PC), a tablet computer, a smart phone, or a Personal Digital Assistant (PDA); and may be also one chip of monochip computer and other integrated circuit chip.
In this embodiment, the temperature acquisition device 200 may be a temperature sensor. In one example, the temperature sensor may be digital DS18B 20. The temperature sensor contains an AD converter which can output digital quantity and is directly communicated with the singlechip.
Fig. 2 is a block diagram of the control device 100. The control apparatus 100 includes a temperature control device 110, a memory 111, a memory controller 112, and a processor 113. It will be understood by those of ordinary skill in the art that the structure shown in fig. 2 is merely an illustration and is not intended to limit the structure of the control apparatus 100. For example, the control device 100 may also include more or fewer components than shown in FIG. 2, or have a different configuration than shown in FIG. 2.
The memory 111, the memory controller 112, and the processor 113 are electrically connected to each other directly or indirectly to realize data transmission or interaction. For example, the components may be electrically connected to each other via one or more communication buses or signal lines. The temperature control device 110 includes at least one software function module which may be stored in the memory 111 in the form of software or firmware (firmware) or solidified in an Operating System (OS) of the control apparatus 100. The processor 113 is configured to execute executable modules stored in the memory, for example, software functional modules or computer programs included in the temperature control device 110.
The Memory 111 may be, but is not limited to, a Random Access Memory (RAM), a Read Only Memory (ROM), a Programmable Read-Only Memory (PROM), an Erasable Read-Only Memory (EPROM), an electrically Erasable Read-Only Memory (EEPROM), and the like. The memory 111 is configured to store a program, and the processor 113 executes the program after receiving an execution instruction, and the method executed by the control device 100 defined by the process disclosed in any embodiment of the present invention may be applied to the processor 113, or implemented by the processor 113.
The processor 113 may be an integrated circuit chip having signal processing capabilities. The Processor 113 may be a general-purpose Processor, and includes a Central Processing Unit (CPU), a Network Processor (NP), and the like; but may also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
Taking domestic similar temperature control devices as an example, most of the devices use a single temperature control meter, and only refrigeration and heating parameters can be set on the temperature control meter, so that the water pump needs to be additionally controlled, and the control integration cannot be realized, so that the operation is inconvenient, the problems of delay, large error and the like exist, and the product quality cannot be ensured; the common refrigeration equipment has no 120-second time delay protection, and the temperature control precision can only reach +/-0.5 ℃. In addition. Mechanical switch and button input are adopted in the input, mechanical equipment operating time is long and contact failure easily produces, and the output adopts the pilot lamp to show, can't accurate description quality situation, lacks the direct impression of vision. The existing partial functional software can only work normally under a windows 98 system and a display resolution of 800 x 600, and cannot adapt to the application scene under the current system and high resolution.
Referring to fig. 3, a flowchart of a temperature control method applied to the control device shown in fig. 2 according to a preferred embodiment of the invention is shown. The specific flow shown in fig. 3 will be described in detail below.
And S101, acquiring the current temperature acquired by the temperature acquisition equipment at a specified time node.
Since the temperature decreases due to external factors (e.g., heat dissipation), temperature control is performed again at a designated time node. In this embodiment, the temperature control method is performed at each designated time node to realize temperature control at each designated time node.
In one embodiment, the designated time node may be every five minute time node. In one example, the start time node may be any time node, each time node after the start being all time nodes that are a five minute multiple of the start time node.
And step S102, calculating the temperature difference between the current temperature and a preset target temperature.
The preset target temperature can be set arbitrarily by a user, and the preset target temperature can be any temperature such as 30 ℃, 35 ℃, 28 ℃, 33 ℃ and the like.
And step S103, calculating to obtain a control value according to the temperature difference and a preset initialization parameter.
In this embodiment, a pid (proportion Integration differentiation) control algorithm may be used to control the temperature. The preset initialization parameters may include a proportionality coefficient (P), an integral constant (I), and a differential constant (D) in the PID control algorithm. It is understood that a person skilled in the art can set the preset initialization parameters according to the environmental requirements.
In this embodiment, the control value may be calculated by using different calculation formulas, and the calculation is performed in two different embodiments.
In an embodiment, the calculating the control value according to the temperature difference and the preset initialization parameter is implemented by:
wherein K ispRepresents a scaling factor; e represents a difference signal, e-TsetWhere T represents the current temperature, TsetRepresenting a preset target temperature; t isiAs an integration constant, TdIs a differential constant; v0And V0-1And the control values of the current state and the previous designated time node are obtained.
In another embodiment, the calculation of the control value according to the temperature difference and the preset initialization parameter is implemented in the following manner:
wherein K ispRepresents a scaling factor; e represents a difference signal, e-TsetWhere T represents the current temperature, TsetRepresenting a preset target temperature; e.g. of the typei，ei-1，ei-2Difference signals respectively representing a current state, a previous state and a next previous state obtained in one period; t isiAs an integration constant, TdIs a differential constant; viAnd Vi-1And the control values of the current state and the previous designated time node are obtained.
And step S104, sending the control value to the temperature adjusting equipment so that the temperature adjusting equipment heats according to the control value.
In this embodiment, the method further includes determining the working current during the heating process, and when the working current is stable, the heating may be stopped, so that the temperature of the stabilizing and adjusting device is kept at a stable temperature when the working current is stable. In one example, a formula is used
When calculating the control value, temperature control can be understood as two processes: input and output. Inputting: initializing parameters, namely initializing the parameter K by using PID empirical valuep，TI，Td(ii) a Initialization TsetThe first two state difference signals are set to 0, e1＝e 00, i-2; and (3) outputting: whether the operating current reaches a steady state.
The following is a description of various embodiments, with specific descriptions below.
In one embodiment, as shown in fig. 4, the method further comprises the following steps.
Step S201, acquiring real-time temperature of the temperature adjusting device in the heating process.
Step S202, calculating the working current of the temperature regulating equipment according to the real-time temperature and the circuit data of the previous appointed time node.
In one embodiment, the push controlCalculating the operating current I of the thermostat by the control characteristic of the current source0And ei。
Step S203, determining whether the working current is stable.
In one embodiment, the delay is 0.1-0.3 seconds and a check is made to see if a shutdown condition has been reached. In this embodiment, the shutdown condition may be checking the operating current I of the temperature adjustment device0Whether to stabilize and control the value ViWhether it is stable. The shutdown condition may be checking the operating current I of the temperature regulation device0Whether or not to stabilize or control the value ViWhether it is stable.
And S204, when the working current is unstable, calculating to obtain an updated control value according to the real-time temperature, and sending the updated control value to the temperature regulating equipment so that the temperature regulating equipment heats according to the control value.
Then steps S201 and S203 are executed in a loop, specifically, the loop iteration number i is i +1, and e may be madei-2＝ei-1,ei-1＝eiSo as to update the difference signal of the current state, the previous state and the next previous state. And controlling the temperature adjusting equipment to stop heating until the working current is stable, and stopping circularly executing the steps S201 and S203. In particular, the operating current of the temperature regulating device may be set to zero to stop heating.
Further, when the working current reaches a stable state, a control value of the temperature regulating device is obtained according to real-time temperature calculation when the working current is stable, and the control value is used as circuit data of the specified time node.
In another embodiment, as shown in fig. 5, the method further comprises the following steps.
And S205, acquiring the real-time temperature of the temperature adjusting equipment in the heating process.
Step S206, calculating the working current and the updated control value of the temperature regulating equipment according to the real-time temperature and the circuit data of the previous appointed time node.
Step S207, determining whether the operating current is stable.
In one embodiment, the delay is 0.1-0.3 seconds and a check is made to see if a shutdown condition has been reached. In this embodiment, the shutdown condition may be checking the operating current I of the temperature adjustment device0Whether to stabilize and control the value ViWhether it is stable. The shutdown condition may be checking the operating current I of the temperature regulation device0Whether or not to stabilize or control the value ViWhether it is stable.
And step S208, when the working current is unstable, sending the updated control value to the temperature regulating equipment so that the temperature regulating equipment is heated according to the control value.
And then steps S205 and S207 are executed in a loop. Specifically, the loop iteration number i is i +1, and e may be set toi-2＝ei-1,ei-1＝eiSo as to update the difference signal of the current state, the previous state and the next previous state. And controlling the temperature adjusting device to stop heating until the working current is stabilized, and stopping circularly executing the steps S205 and S207. In particular, the operating current of the temperature regulating device may be set to zero to stop heating.
In this embodiment, when the operating current reaches a steady state, the updated control value is used as the circuit data of the designated time node.
In yet another embodiment, as shown in fig. 6, the method further comprises the following steps.
And step S209, acquiring the real-time temperature of the temperature adjusting equipment in the heating process.
Step S2010, calculating a working current of the temperature adjustment device according to the real-time temperature and the circuit data of the previous designated time node.
In one embodiment, the delay is 0.1-0.3 seconds and a check is made to see if a shutdown condition has been reached. In this embodiment, the shutdown condition may be checking the operating current I of the temperature adjustment device0Whether it is stable.
Step S2011, determining whether the operating current is stable.
When the operating current is unstableThen, steps S209 and S2011 are executed in a loop. Specifically, the loop iteration number i is i +1, and e may be set toi-2＝ei-1,ei-1＝eiSo as to update the difference signal of the current state, the previous state and the next previous state. Until the operating current is unstable to control the temperature adjustment device to stop heating, the cyclic execution of steps S209 to S2011 is stopped. In particular, the operating current of the temperature regulating device may be set to zero to stop heating.
In this embodiment, when the working current reaches a stable state, the control value of the temperature adjustment device is calculated according to the real-time temperature when the working current is stable, and the control value is used as the circuit data of the specified time node.
In industrial production, different heating powers are needed due to the influence of external environment temperature, for example, the same temperature is controlled in summer and winter, and oscillation is easily generated in the control process due to certain time delay of water temperature measurement.
The technical effect of the temperature control method is described in a simulation experiment.
Firstly, setting an experimental environment:
the temperature acquisition equipment can use a temperature sensor to adopt a digital DS18B20, an AD converter contained in the temperature sensor can directly output digital quantity, and the temperature acquisition equipment is directly communicated with a single chip microcomputer, so that temperature measurement data can be conveniently read. The temperature measuring element of the temperature sensor adopts a platinum thermal resistor Pt100 sensor, and the temperature of the 400W electric heating cup is controlled by switching on and off the relay. The control device may be externally connected with an input unit, and the preset target temperature is set in through a keyboard. In one embodiment, the control device may be further externally connected with a display unit for displaying real-time temperature data of the temperature adjustment device. In one example, the display unit may be an LCD1602 screen displaying the current temperature.
When the temperature acquisition equipment acquires the temperature value, in order to prevent the system stability from being reduced due to D/A conversion errors and interference errors, a method for comparing the difference value of the thermistor and the reference voltage is also adopted in the experiment. In order to verify the precision and experimental effectiveness of the temperature control system, a 6-bit half multimeter is adopted to measure the voltage change on the thermistor and record the corresponding temperature change and stabilization time. Because six half multimeters can measure 5 bits after the decimal point of the voltage value, the temperature measurement precision can reach 0.005 ℃.
TABLE 1 PID temperature control Algorithm comparison experiment
| Setting temperature of | 35 | 45 | 65 | 80 |
| Directly measured control times/min | 16.8 | 20.6 | 16.4 | 18.5 |
| Adjustment time/min for algorithms herein | 7.6 | 7.8 | 7.3 | 8.3 |
The data in table 1 were performed at room temperature and 20 ℃. The stabilization time is the time when the measured voltage value is stabilized within the range of +/-0.5 ℃, each group of temperature experiments are repeated for 5 times, and the recorded data are 5 times of average values.
In another example, at a preset target temperature of 15 ℃, samples are taken every 20 seconds and two decimal places are reserved. The measured voltage was converted to the corresponding temperature as shown in fig. 7.
As can be seen from fig. 7, after about 7 minutes, the voltage fluctuation value tends to be stable, the temperature value calculated from the voltage also tends to be stable, and the measured temperature value vibrates within the range of 15 ℃ ± 0.1 (within the two black line band regions shown in the figure).
As can be seen from fig. 7, the temperature can be controlled between 14.9 ℃ and 15.1 ℃ by the temperature control unit in the embodiment of the present invention.
According to the temperature control method, the temperature difference between the current temperature and the preset target temperature is used; calculating to obtain a control value according to the temperature difference and a preset initialization parameter; the temperature adjusting device is enabled to use the control value to adjust the temperature, so that the adjusted temperature can meet the actual requirement, and the adjusted temperature is more accurate.
Fig. 8 is a schematic diagram of functional modules of the temperature control device 110 shown in fig. 2 according to a preferred embodiment of the present invention. The various modules in the temperature control device 110 in this embodiment are used to perform the various steps in the above-described method embodiments. The temperature control device 110 includes a temperature obtaining module 1101, a temperature difference calculating module 1102, a control value calculating module 1103, and a control value sending module 1104.
The temperature obtaining module 1101 is configured to obtain, at a specified time node, a current temperature collected by the temperature collecting device.
The temperature difference calculating module 1102 is configured to calculate a temperature difference between the current temperature and a preset target temperature.
The control value calculating module 1103 is configured to calculate a control value according to the temperature difference and a preset initialization parameter.
The control value sending module 1104 is configured to send the control value to the temperature adjustment device, so that the temperature adjustment device heats according to the control value.
In this embodiment, the temperature control device 110 further includes: a real-time obtaining module 1105, a current calculating module 1106, a current judging module 1107 and a control value updating module 1108.
The real-time obtaining module 1105 is configured to obtain a real-time temperature of the temperature adjustment device during a heating process.
The current calculating module 1106 is configured to calculate the operating current and the updated control value of the temperature adjusting device according to the real-time temperature and the circuit data of the previous designated time node.
The current determining module 1107 is configured to determine whether the working current is stable.
The control value updating module 1108 is configured to send the updated control value to the temperature adjustment device when the operating current is unstable, so that the temperature adjustment device heats according to the control value.
In this embodiment, the temperature control apparatus 110 further includes a stabilization control module 1109, configured to obtain a control value of the temperature adjustment device according to real-time temperature calculation when the working current is stabilized when the working current reaches a stable state, and use the control value as circuit data of the specified time node.
In this embodiment, the control value calculating module 1103 is implemented as follows:
wherein K ispRepresents a scaling factor; e represents a difference signal, e-TsetWhere T represents the current temperature, TsetRepresenting a preset target temperature; t isiAs an integration constant, TdIs a differential constant; v0And V0-1And the control values of the current state and the previous designated time node are obtained.
In this embodiment, the control value calculating module 1103 is implemented as follows:
wherein K ispRepresents a scaling factor; e represents a difference signal, e-TseT, T represents the current temperature, TsetRepresenting a preset target temperature; e.g. of the typei，ei-1，ei-2Difference signals respectively representing a current state, a previous state and a next previous state obtained in one period; t isiAs an integration constant, TdIs a differential constant; viAnd Vi-1And the control values of the current state and the previous designated time node are obtained.
For other details of the present embodiment, reference may be further made to the description of the above method embodiment, which is not repeated herein.
According to the temperature control device provided by the embodiment of the invention, the temperature difference between the current temperature and the preset target temperature is utilized; calculating to obtain a control value according to the temperature difference and a preset initialization parameter; the temperature adjusting device is enabled to use the control value to adjust the temperature, so that the adjusted temperature can meet the actual requirement, and the adjusted temperature is more accurate.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method can be implemented in other ways. The apparatus embodiments described above are merely illustrative, and for example, the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present invention. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, the functional modules in the embodiments of the present invention may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer readable storage medium. 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. It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. The temperature control method is characterized by being applied to control equipment, wherein the control equipment is in communication connection with temperature acquisition equipment and temperature regulation equipment; the temperature control method comprises the following steps:
acquiring the current temperature acquired by the temperature acquisition equipment at a specified time node;
calculating the temperature difference between the current temperature and a preset target temperature;
calculating to obtain a control value according to the temperature difference and a preset initialization parameter; and
sending the control value to the temperature adjusting equipment so that the temperature adjusting equipment can heat according to the control value;
a. acquiring the real-time temperature of the temperature adjusting equipment in the heating process;
b. calculating the working current and the updated control value of the temperature regulating equipment according to the real-time temperature and the circuit data of the previous appointed time node, wherein the circuit data of the appointed time node is the control value of the temperature regulating equipment obtained by calculating the real-time temperature when the working current is stable when the working current reaches a stable state;
c. judging whether the working current is stable or not;
and when the working current is unstable, sending the updated control value to the temperature regulating equipment so that the temperature regulating equipment is heated according to the control value, and then circularly executing the steps a and c until the working current stably controls the temperature regulating equipment to stop heating.
2. The method of claim 1, wherein the calculating of the control value based on the temperature difference and a predetermined initialization parameter is performed by:
wherein K ispRepresents a scaling factor; e represents a difference signal, e-TsetWhere T represents the current temperature, TsetRepresenting a preset target temperature; t isiAs an integration constant, TdIs a differential constant; v0And V0-1And the control values of the current state and the previous designated time node are obtained.
3. The method of claim 1, wherein the calculating of the control value based on the temperature difference and a predetermined initialization parameter is performed by:
wherein K ispRepresents a scaling factor; e represents a difference signal, e-TsetWhere T represents the current temperature, TsetRepresenting a preset target temperature; e.g. of the typei，ei-1，ei-2Respectively representing the current state obtained in one cycleA difference signal of a previous state and a next previous state; t isiAs an integration constant, TdIs a differential constant; viAnd Vi-1And the control values of the current state and the previous designated time node are obtained.
4. The temperature control device is characterized by being applied to control equipment, wherein the control equipment is in communication connection with temperature acquisition equipment and temperature regulation equipment; the temperature control device includes:
the temperature acquisition module is used for acquiring the current temperature acquired by the temperature acquisition equipment at a specified time node;
the temperature difference calculation module is used for calculating the temperature difference between the current temperature and a preset target temperature;
the control value calculating module is used for calculating to obtain a control value according to the temperature difference and a preset initialization parameter; and
the control value sending module is used for sending the control value to the temperature adjusting equipment so that the temperature adjusting equipment can be heated according to the control value;
the real-time acquisition module is used for acquiring the real-time temperature of the temperature adjusting equipment in the heating process;
the current calculation module is used for calculating the working current and the updated control value of the temperature regulation equipment according to the real-time temperature and the circuit data of the previous appointed time node;
the current judging module is used for judging whether the working current is stable or not;
the control value updating module is used for sending the updated control value to the temperature adjusting equipment when the working current is unstable so as to enable the temperature adjusting equipment to heat according to the control value;
and the stability control module is used for calculating a control value of the temperature regulating equipment according to the real-time temperature when the working current is stable when the working current reaches a stable state, and taking the control value as the circuit data of the specified time node.
5. The temperature control apparatus of claim 4, wherein the control value calculation module is implemented by:
wherein K ispRepresents a scaling factor; e represents a difference signal, e-TsetWhere T represents the current temperature, TsetRepresenting a preset target temperature; t isiAs an integration constant, TdIs a differential constant; v0And V0-1And the control values of the current state and the previous designated time node are obtained.
6. The temperature control apparatus of claim 4, wherein the control value calculation module is implemented by:
wherein K ispRepresents a scaling factor; e represents a difference signal, e-TsetWhere T represents the current temperature, TsetRepresenting a preset target temperature; e.g. of the typei，ei-1，ei-2Difference signals respectively representing a current state, a previous state and a next previous state obtained in one period; t isiAs an integration constant, TdIs a differential constant; viAnd Vi-1And the control values of the current state and the previous designated time node are obtained.
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| CN112155434B (en) * | 2020-08-19 | 2022-03-08 | 北京旷视科技有限公司 | Temperature control method, temperature control device, control equipment, storage medium and heater |
| SE544494C2 (en) * | 2020-10-21 | 2022-06-21 | Senseair Ab | Temperature controller for a temperature control mechanism |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384532A (en) * | 2010-08-30 | 2012-03-21 | 现代自动车株式会社 | Air conditioning system for a vehicle |
| CN102650890A (en) * | 2012-04-24 | 2012-08-29 | 湖南迪斯生物技术有限公司 | Self-adaptive PID (proportion integration differentiation) temperature control method |
| CN103076827A (en) * | 2012-12-30 | 2013-05-01 | 安徽问天量子科技股份有限公司 | High-precision temperature control device within small range |
| CN104236018A (en) * | 2014-09-05 | 2014-12-24 | 美的集团武汉制冷设备有限公司 | Air conditioner control method and air conditioner control device |
| CN105774469A (en) * | 2016-03-07 | 2016-07-20 | 无锡职业技术学院 | Air conditioner controller used for pure electric automobile and based on fuzzy control algorithm |
| CN106292766A (en) * | 2016-10-24 | 2017-01-04 | 中国科学院上海应用物理研究所 | A kind of big thermal inertia working medium loop apparatus Temperature Fuzzy Control method and system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004356449A (en) * | 2003-05-29 | 2004-12-16 | Keyence Corp | Method for controlling peltier element and control circuit for peltier circuit |
| CN100582987C (en) * | 2007-07-27 | 2010-01-20 | 吉林大学 | Precision thermostatic control laboratory box |
| CN101377686A (en) * | 2007-08-31 | 2009-03-04 | 沈阳芯源微电子设备有限公司 | Intelligent heat tray temperature controller and temperature control method thereof |
| JP2015095099A (en) * | 2013-11-12 | 2015-05-18 | 日本電波工業株式会社 | Temperature control device, and oscillation device |
| CN103837464B (en) * | 2014-04-01 | 2017-02-15 | 常州必达科生物科技有限公司 | Constant-temperature control device based on photon detection module of flow cytometry |
-
2018
- 2018-01-30 CN CN201810089158.9A patent/CN108279719B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384532A (en) * | 2010-08-30 | 2012-03-21 | 现代自动车株式会社 | Air conditioning system for a vehicle |
| CN102650890A (en) * | 2012-04-24 | 2012-08-29 | 湖南迪斯生物技术有限公司 | Self-adaptive PID (proportion integration differentiation) temperature control method |
| CN103076827A (en) * | 2012-12-30 | 2013-05-01 | 安徽问天量子科技股份有限公司 | High-precision temperature control device within small range |
| CN104236018A (en) * | 2014-09-05 | 2014-12-24 | 美的集团武汉制冷设备有限公司 | Air conditioner control method and air conditioner control device |
| CN105774469A (en) * | 2016-03-07 | 2016-07-20 | 无锡职业技术学院 | Air conditioner controller used for pure electric automobile and based on fuzzy control algorithm |
| CN106292766A (en) * | 2016-10-24 | 2017-01-04 | 中国科学院上海应用物理研究所 | A kind of big thermal inertia working medium loop apparatus Temperature Fuzzy Control method and system |
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