CN119556744A - A temperature controller and a control method thereof, and a temperature control device - Google Patents
A temperature controller and a control method thereof, and a temperature control device Download PDFInfo
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- CN119556744A CN119556744A CN202411576771.5A CN202411576771A CN119556744A CN 119556744 A CN119556744 A CN 119556744A CN 202411576771 A CN202411576771 A CN 202411576771A CN 119556744 A CN119556744 A CN 119556744A
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- 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
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Abstract
The invention discloses a temperature controller, a control method thereof and temperature control equipment. The temperature controller is internally provided with a temperature and humidity sensor, an air flow rate sensor and a main control chip, and the temperature and humidity sensor and the air flow rate sensor are arranged close to the detection window. According to the invention, the size of the detection window of the temperature controller can be regulated and controlled according to the movable baffle, when the temperature controller is not electrified, the baffle is closed, when the temperature controller is electrified normally, the baffle is opened and closed according to the internal heating condition, the outdoor temperature and the air flow rate condition of the temperature controller, so that heat dissipation, heat preservation or moisture prevention can be realized, the detection accuracy of a temperature and humidity sensor of the temperature controller is improved, the temperature controller is protected from being corroded by moisture, and the product quality is ensured.
Description
Technical Field
The invention relates to the technical field of temperature controllers, in particular to a temperature controller, a control method thereof and temperature control equipment.
Background
The temperature controller needs to accurately detect environmental temperature and humidity data, and then accurately controls the unit. The temperature controller is electrified for a long time to cause self heating and influence the detection accuracy of a temperature and humidity sensor of the temperature controller, or the air flow rate around the temperature controller is too high and influence the accuracy of the temperature and humidity sensor in detecting the ambient temperature and humidity, so that the control logic of the unit is incorrect and the user experience is poor.
Moreover, if the temperature and humidity detection window of the temperature controller is too large, decoration pollution is easily caused, for example, the detection window of the temperature controller is blocked by decoration materials, and the detection accuracy of the temperature controller is affected. The detection window of temperature controller is fixed in size, if lead to the inside humid environment that is in for a long time of temperature controller, then go moldy and corrode easily, lead to temperature and humidity sensor to become invalid, product quality is not good. If the air flow rate of the detection window is too large, the detection accuracy of the temperature controller can be affected.
Aiming at the problem that the size of a detection window of a temperature controller in the prior art cannot be adjusted in a self-adaptive manner, and the accuracy of temperature and humidity detection is affected, an effective solution is not proposed at present.
Disclosure of Invention
The embodiment of the invention provides a temperature controller, a control method thereof and temperature control equipment, which are used for solving the problem that the temperature and humidity detection accuracy is affected because the size of a detection window of the temperature controller cannot be adjusted in a self-adaptive manner in the prior art.
In order to solve the technical problems, the invention provides a temperature controller, wherein a detection window is arranged on a shell of the temperature controller, a movable baffle is arranged at the detection window and used for adjusting the opening size of the detection window, a temperature and humidity sensor, an air flow rate sensor and a main control chip are arranged in the temperature controller, and the temperature and humidity sensor and the air flow rate sensor are arranged close to the detection window.
The invention further provides a temperature controller control method which is applied to the temperature controller, wherein the method comprises the steps of controlling the baffle to be opened after the temperature controller is electrified, determining the opening and closing angle of the baffle according to the temperature and humidity parameters and the air flow rate during the period from the time when the temperature controller is electrified to be self-heating stable, detecting the change of the air flow rate and the change of the ambient humidity of a detection window of the temperature controller after the temperature controller is self-heating stable, and adjusting the opening and closing angle of the baffle according to the change of the air flow rate and the change of the ambient humidity.
Further, in the temperature controller is on to the temperature controller self-heating stable period, according to humiture parameter and air velocity of flow confirm the angle of opening and shutting of baffle includes:
Acquiring the temperature and humidity parameters, wherein the temperature and humidity parameters comprise the ambient temperature and ambient humidity according to a temperature and humidity sensor of the temperature controller, the air flow rate according to an air flow rate sensor of the temperature controller, the self temperature of a main control chip and the heating attenuation of the main control chip from the heating value to the temperature and humidity sensor;
And calculating to obtain the opening and closing angles of the baffle according to the ambient temperature, the ambient humidity, the self temperature of the main control chip, the heating attenuation and the air flow rate.
Further, according to the ambient temperature, the ambient humidity, the self temperature of the main control chip and the heating attenuation, the opening and closing angle of the baffle is calculated, and the opening and closing angle is realized by the following formula:
θ=α*(Tchip－Tout)-β*RH-γ*V-∈*A;
Wherein θ is an opening and closing angle, T chip is the temperature of the main control chip itself, T out is the ambient temperature, RH is the ambient humidity, V is the air flow rate, a is the heating attenuation, and α, β, γ, and e are adjustment coefficients.
Further, detecting air flow rate change and environment humidity change of a detection window of the temperature controller, and adjusting the opening and closing angle of the baffle according to the air flow rate change and the environment humidity change, wherein the method comprises the steps of detecting whether the air flow rate of the detection window of the temperature controller changes, adjusting the opening and closing angle of the baffle according to the air flow rate if the air flow rate changes, detecting environment humidity change, and adjusting the opening and closing angle of the baffle according to the environment humidity if the environment humidity exceeds a preset humidity value.
Further, the opening and closing angle of the baffle plate is adjusted according to the air flow rate, and the opening and closing angle is realized by the following formula:
And theta Rear part (S) ＝θ Front part -gamma V, wherein theta Rear part (S) is an opening and closing angle after adjustment, theta Front part is an opening and closing angle before adjustment, V is the air flow velocity, and gamma is an adjustment coefficient.
Further, the opening and closing angle of the baffle plate is adjusted according to the ambient humidity, and the opening and closing angle is realized by the following formula:
θ Rear part (S) ＝θ Front part -beta RH, wherein θ Rear part (S) is the opening and closing angle after adjustment, θ Front part is the opening and closing angle before adjustment, RH is the ambient humidity, and beta is the adjustment coefficient.
Further, detecting the change of the ambient humidity, if the ambient humidity exceeds a preset humidity value, adjusting the opening and closing angle of the baffle according to the ambient humidity, judging whether the adjusted opening and closing angle of the baffle is smaller than the preset angle and the temperature of the main control chip exceeds a preset temperature threshold, if so, determining an optimal compensation value according to the current opening and closing angle of the baffle, compensating the ambient temperature detected by a temperature and humidity sensor of the temperature controller according to the optimal compensation value, and compensating the ambient humidity detected by the temperature and humidity sensor of the temperature controller according to the optimal compensation value and the ambient temperature detected by the temperature and humidity sensor.
Further, determining an optimal compensation value according to the current opening and closing angle of the baffle plate comprises:
Tb=a (theta 0－θ)+b(Tchip－T0), wherein Tb is an optimal compensation value, a is a baffle opening and closing angle adjustment coefficient, b is a main control chip temperature adjustment coefficient, theta is the current opening and closing angle of the baffle, theta 0 is a preset angle, T chip is the self temperature of the main control chip, and T 0 is a preset temperature threshold.
Further, the environmental temperature detected by the temperature and humidity sensor of the temperature controller is compensated according to the optimal compensation value, and the compensation is realized by the following formula:
T=Tj-Tb, wherein T is the compensated ambient temperature, T b is the optimal compensation value, and T j is the ambient temperature detected by the temperature and humidity sensor.
Further, according to the optimal compensation value and the ambient temperature detected by the temperature and humidity sensor, the ambient humidity detected by the temperature and humidity sensor of the temperature controller is compensated, and the compensation is realized by the following formula:
RH=RHj*exp(4283.78*(Tj－Tb)/(243.12+Tj)/(243.12+Tb));
Wherein RH is the compensated ambient humidity, RH j is the ambient humidity detected by the temperature and humidity sensor, T b is the optimal compensation value, and T j is the ambient temperature detected by the temperature and humidity sensor.
The invention also provides temperature control equipment, wherein the temperature control equipment comprises the temperature controller.
The invention also provides a computer readable storage medium having stored thereon a computer program, wherein the program when executed by a processor implements a method as described above.
By applying the technical scheme of the invention, the size of the detection window of the temperature controller can be regulated and controlled according to the movable baffle, when the temperature controller is not electrified, the baffle is closed, when the temperature controller is electrified normally, the baffle is opened and closed according to the internal heating condition, the outdoor temperature and the air flow rate condition of the temperature controller so as to radiate heat, preserve heat or prevent moisture, improve the detection accuracy of a temperature and humidity sensor of the temperature controller, protect the temperature controller from being corroded by the moisture and ensure the product quality.
Drawings
Fig. 1 is a schematic structural view of a thermostat according to an embodiment of the present invention;
FIG. 2 is a flowchart of a thermostat control method according to an embodiment of the present invention;
Fig. 3 is a detailed flowchart of a thermostat control method according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this application 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, the "plurality" generally includes at least two.
It should be understood that the term "and/or" as used herein is merely an association relationship describing the associated object, and means that there may be three relationships, e.g., a and/or B, and that there may be three cases where a exists alone, while a and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
The words "if", as used herein, may be interpreted as "at" or "when" or "in response to a determination" or "in response to a detection", depending on the context. Similarly, the phrase "if determined" or "if detected (stated condition or event)" may be interpreted as "when determined" or "in response to determination" or "when detected (stated condition or event)" or "in response to detection (stated condition or event), depending on the context.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a product 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 product or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of additional like elements in a commodity or device comprising the element.
Alternative embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Example 1
Fig. 1 is a schematic structural view of a temperature controller according to an embodiment of the present invention, as shown in fig. 1, a housing of the temperature controller is provided with a detection window, a movable baffle is disposed at the detection window, the baffle can be controlled to move by a motor, and the movement of the baffle can adjust the opening size of the detection window. The inside of temperature controller is provided with temperature and humidity sensor, air flow rate sensor, main control chip, and temperature and humidity sensor and air flow rate sensor are close to the detection window setting, consider reducing main control chip self-heating to the influence of temperature and humidity sensor's detection accuracy as far as possible, and main control chip can set up the position of keeping away from the detection window.
The temperature controller that this embodiment provided can install in temperature control equipment for detect temperature and humidity data and air flow rate data. Devices that need to be controlled in relation to the ambient temperature are suitable, for example air conditioning units. Based on this, this embodiment still provides a temperature control equipment, including the temperature controller of introduction, temperature and humidity data and air flow rate data that can be more accurate are provided accurate data support for the control logic that temperature control equipment follows.
Example 2
According to an embodiment of the present invention, there is provided a thermostat control method embodiment, it being noted that the steps shown in the flowchart of the drawings may be performed in a computer system such as a set of computer executable instructions, and that although a logical order is shown in the flowchart, in some cases the steps shown or described may be performed in an order different from that shown or described herein.
Fig. 2 is a flowchart of a thermostat control method according to an embodiment of the present invention, which is applied to the thermostat described above, as shown in fig. 2, and includes the steps of:
Step S201, after the temperature controller is electrified, the baffle is controlled to be opened;
step S202, determining the opening and closing angles of the baffle plates according to the temperature and humidity parameters and the air flow rate during the period from the power-on of the temperature controller to the self-heating stabilization of the temperature controller;
Step S203, after the temperature controller generates heat by itself stably, detecting the air flow rate change and the environment humidity change of a detection window of the temperature controller, and adjusting the opening and closing angle of the baffle according to the air flow rate change and the environment humidity change.
In this embodiment, the detection window size of temperature controller can be according to mobilizable baffle regulation control, and when the temperature controller was not electrified, this baffle was closed, and when the temperature controller was normally electrified, the baffle would open and shut according to the inside condition of generating heat of temperature controller, outdoor temperature, air flow rate condition to heat dissipation, heat preservation or moisture proof gas, improve temperature and humidity sensor's of temperature controller detection accuracy, and protect the temperature controller not corroded by the moisture, guarantee product quality.
When the temperature controller is not electrified, the baffle keeps a closed state. After the temperature controller is normally electrified, the baffle is opened. The optimal opening angle of the baffle plate can be determined according to the temperature and humidity parameters and the air flow rate. The method comprises the steps of obtaining temperature and humidity parameters according to a temperature and humidity sensor of a temperature controller, obtaining air flow rate according to an air flow rate sensor of the temperature controller, obtaining self temperature of a main control chip, heating attenuation of the main control chip to the temperature and humidity sensor, and calculating to obtain opening and closing angles of a baffle according to the environment temperature, the environment humidity, the self temperature of the main control chip, the heating attenuation and the air flow rate. The heating attenuation, namely the attenuation value in the process that the heat of the main control chip is transferred to the temperature and humidity sensor. The circuit board of the temperature controller has the function of detecting the heat radiation average value near the main control chip and the heat radiation average value near the temperature and humidity sensor, and the difference value of the heat radiation average value near the main control chip and the heat radiation average value near the temperature and humidity sensor is the heating attenuation of heat, namely the heating attenuation = the heat radiation average value near the main control chip and the heat radiation average value near the temperature and humidity sensor, and the meaning is within a preset range. The larger the heating attenuation is, the smaller the interference of the heating quantity of the main control chip to the temperature and humidity sensor is, the opening and closing angle of the baffle can be reduced, otherwise, the larger the interference is, the opening and closing angle of the baffle needs to be increased.
Based on the above, the opening and closing angle of the baffle plate can be influenced by a series of parameters including the ambient temperature, the ambient humidity, the self temperature of the main control chip, the heating attenuation and the air flow rate, and the opening and closing angle finally confirmed based on the influencing parameters is the optimal opening and closing angle under the current state of the temperature controller, and the optimal opening and closing angle can be considered and balanced in the angles of heat dissipation, heat preservation or moisture prevention of the temperature controller.
The temperature controller is provided with a control model GreeTempModel, and the model is obtained by training data such as different environment temperatures T out, environment humidity RH, air flow velocity V near a detection window under the opening and closing degree of a baffle, self temperature T chip of a main control chip, heating attenuation A from the main control chip to a temperature and humidity sensor and the like. The main control chip controls the optimal rotation angle of the small motor, namely the optimal opening and closing angle theta of the baffle, and the basic calculation formula of the control model GreeTempModel is as follows:
θ=α*(Tchip－Tout)-β*RH-γ*V-∈*A;
Wherein θ is the opening and closing angle, T chip is the temperature of the main control chip itself, T out is the ambient temperature, RH is the ambient humidity, V is the air flow rate, and A is the heating attenuation.
Wherein α, β, γ, e are adjustment coefficients, the values of which include, but are not limited to, constants, variables or calculation formulas for balancing the influence of each adjustment parameter on the rotation angle of the motor. The adjustment coefficients are required to be obtained by training according to a large amount of experimental data and product characteristics, the above formula is optimized by using a neural network, a more complex and accurate model can be constructed, and the neural network can learn the nonlinear relation among the parameter coefficients through a large amount of data, so that a more accurate optimal rotation angle of the motor is provided, and the baffle is controlled to achieve an optimal opening and closing angle.
Formula interpretation:
and T chip－Tout, the difference value between the self temperature of the main control chip and the outdoor environment temperature. The larger the difference, the larger the rotation angle required by the motor, so that the baffle is opened by a larger angle to increase heat dissipation.
RH, outdoor ambient humidity. The opening and closing angle of the baffle needs to be reduced at high humidity, so that a smaller rotation angle is needed.
V is the air flow rate. The larger the flow velocity is, the better the heat radiation effect is, and the rotation angle of the motor can be properly reduced.
And A, the heating quantity of the main control chip reaches the heating attenuation quantity of the temperature and humidity sensor, and the larger the heating attenuation quantity is, the smaller the influence of the heating quantity of the main control chip on the temperature and humidity sensor is, and the opening and closing angle of the baffle plate can be properly reduced.
Based on the method, the optimal opening and closing angle of the baffle can be accurately calculated, so that the detection window of the temperature controller is adjusted to an optimal size, and heat dissipation, heat preservation or moisture prevention of the temperature controller are ensured on the basis of improving the accuracy of the detection data of the sensor of the temperature controller.
After the temperature controller generates heat by itself stably, the air flow rate change and the environmental humidity change of a detection window of the temperature controller are detected, and the accuracy of detection data of the temperature controller can be affected by the air flow rate change and the environmental humidity change. Therefore, the embodiment provides a preferred implementation manner, namely, whether the air flow rate of a detection window of the temperature controller is changed or not is detected, if the air flow rate is changed, the opening and closing angle of the baffle plate is adjusted according to the air flow rate, the change of the environmental humidity is detected, and if the environmental humidity exceeds a preset humidity value, the opening and closing angle of the baffle plate is adjusted according to the environmental humidity. According to the preferred embodiment, when the air flow rate changes, the opening and closing angle of the baffle plate is correspondingly adjusted, so that the optimal opening and closing size of the temperature controller detection window is ensured, and the influence of excessive wind speed on the accuracy of temperature controller detection data is avoided. When the ambient humidity is great, correspondingly reduce the angle of opening and shutting of baffle for detection window's opening diminishes, avoids the inside humid environment that is in of temperature controller, guarantees product quality and stability.
Specifically, in the above preferred embodiment, the opening and closing angle of the baffle is adjusted according to the air flow rate, by the following formula:
θ Rear part (S) ＝θ Front part - γ V, where θ Rear part (S) is the opening and closing angle after adjustment, θ Front part is the opening and closing angle before adjustment, V is the air flow rate, and γ is the adjustment coefficient.
When the air flow rate is detected to be in a non-static state, the control model GreeTempModel is combined to judge that the air blows to the temperature controller, the opening and closing angle of the baffle plate is adjusted according to the air speed, and the phenomenon that the detection temperature is lower than the actual temperature due to the fact that the heat is taken away from the detection window by the air blowing is avoided. When the air flow rate is stable, the baffle is opened by a preset angle, and the temperature and humidity data detection of the temperature controller is kept stable. When the air flow rate is static, the opening and closing angles of the baffle plates are controlled according to the temperature and humidity parameters and the air flow rate.
For example, when the self-heating of the current product is stable and no other interference source is present, the shutter is fixed in the last opened position. When the air flow speed is detected to be increased, the temperature model judges that the air blows to the temperature and humidity detection window, the angle of the baffle plate to be reduced is calculated according to the air flow speed, the fact that the temperature near the temperature and humidity detection window is rapidly reduced due to the air blowing is guaranteed not to cause inaccurate detection of the temperature and humidity sensor is avoided, and when the air flow speed is restored to a normal value, the control model gradually opens the baffle plate to an optimal angle according to the current environment condition.
Specifically, in the above preferred embodiment, the opening and closing angle of the baffle is adjusted according to the ambient humidity, which is achieved by the following formula:
θ Rear part (S) ＝θ Front part - β RH, where θ Rear part (S) is the opening and closing angle after adjustment, θ Front part is the opening and closing angle before adjustment, RH is the ambient humidity, and β is the adjustment coefficient.
When the environmental humidity is detected to be large, the control model GreeTempModel is combined to judge that the environmental humidity is large, the opening and closing angle of the baffle needs to be reduced, and the humidity is prevented from entering the temperature controller from the detection window to corrode the temperature and humidity sensor.
After the opening and closing angle of the baffle is adjusted according to the ambient humidity, the opening and closing angle of the baffle becomes smaller, and whether the phenomenon that the temperature of the main control chip is overheated or not needs to be considered at the moment, therefore, the embodiment provides a preferred implementation mode, namely whether the opening and closing angle of the adjusted baffle is smaller than a preset angle and the temperature of the main control chip exceeds a preset temperature threshold is judged, if so, an optimal compensation value is determined according to the opening and closing angle of the current baffle, ambient temperature detected by a temperature and humidity sensor of the temperature controller is compensated according to the optimal compensation value and the ambient temperature detected by the temperature and humidity sensor, and ambient humidity detected by the temperature and humidity sensor of the temperature controller is compensated according to the optimal compensation value and the ambient temperature detected by the temperature and humidity sensor.
That is, if the opening and closing of the baffle are smaller and the temperature of the main control chip is higher, the temperature value of the main control chip needs to be compensated, and the optimal compensation value is determined according to the current opening and closing angle of the baffle, which can be achieved by the following preferred embodiment, tb=a (θ 0－θ)+b(Tchip－T0), wherein Tb is the optimal compensation value, a is the baffle opening and closing angle adjustment coefficient, b is the main control chip temperature adjustment coefficient, θ is the current opening and closing angle of the baffle, θ 0 is the preset angle, T chip is the main control chip temperature, and T 0 is the preset temperature threshold. The values of the adjustment coefficients a and b described above need to be trained and calibrated through a large model with a large amount of experimental data to ensure the validity and rationality of the compensation strategy. The public meaning is that the lower the opening of the baffle is, the higher the compensation requirement on the temperature is, and the higher the heating temperature of the main control chip is, the larger the required temperature compensation is. And then, combining the control model GreeTempModel, carrying out numerical compensation on the detected ambient temperature and humidity through a formula, and avoiding that the temperature detection value is higher than the actual temperature. When the ambient humidity is recovered to a normal value, the opening and closing angles of the baffle plates are controlled according to the temperature and humidity parameters and the air flow rate.
Because the environmental humidity is too big and reduces baffle angle for temperature and humidity detection window is inside can lead to the temperature to rise because product self generates heat, has the wind to blow to the baffle angle that temperature and humidity detection window leads to reduce and can not have this condition, and the wind blows can take away heat, and in order to ensure temperature and humidity detection accuracy this moment, needs to use the formula to carry out temperature compensation. The temperature model obtained through training of each parameter calculates an optimal compensation value Tb according to the angle of the current baffle plate, and compensates the detected temperature Tj:
t=tj-Tb, where T is the compensated ambient temperature, T b is the optimal compensation value, and T j is the ambient temperature detected by the temperature and humidity sensor.
And then, according to the optimal compensation value and the ambient temperature detected by the temperature and humidity sensor, compensating the ambient humidity detected by the temperature and humidity sensor of the temperature controller, and realizing by the following formula:
RH=RHj*exp(4283.78*(Tj－Tb)/(243.12+Tj)/(243.12+Tb));
Wherein RH is the compensated ambient humidity, RH j is the ambient humidity detected by the temperature and humidity sensor, T b is the optimal compensation value, and T j is the ambient temperature detected by the temperature and humidity sensor.
Based on this, can be less in temperature controller detection window, main control chip self-heating is higher under the condition, carry out temperature and humidity data's compensation scheme, guarantee the accuracy of temperature and humidity data of the final output of temperature controller.
The embodiment provides the temperature controller with the adjustable size of the detection window and the automatic compensation of the temperature and humidity detection heating, which can achieve the effects of effectively protecting the detection window of the temperature controller from being polluted, effectively protecting a sensor of the temperature controller from being corroded by moisture and ensuring the accuracy of temperature and humidity detection data of the temperature controller.
Example 3
Fig. 3 is a detailed flowchart of a thermostat control method according to an embodiment of the present invention, as shown in fig. 3, the flowchart including:
1) The temperature controller is provided with a temperature and humidity sensor and an air flow rate sensor, and is close to the temperature and humidity detection window of the structural member, as shown in fig. 1. The temperature and humidity sensor and the air flow rate sensor are placed at proper positions according to different products.
2) The temperature and humidity detection window of the temperature controller is provided with a baffle plate which can be opened and closed, the opening and closing of the baffle plate can be controlled by a small motor, and the maximum opening angle of the baffle plate can be adjusted according to actual needs. As in fig. 1. The baffle plate is opened and closed in a circular arc type or is opened and closed by moving up and down and left and right according to different products.
3) The main control chip of the temperature controller is used as a main heating source in the product and is provided with a temperature sensor, the main control chip can send control signals to the baffle motor, and the main control chip is far away from the temperature and humidity sensor as far as possible, so that the influence of self heating on temperature detection is reduced to the greatest extent.
4) The temperature controller is provided with a control model GreeTempModel which is obtained by training data such as different environment temperatures T out, environment humidity RH, air flow velocity V near a detection window under the opening and closing degree of a baffle, main control chip self temperature T chip, heating attenuation A from the heating quantity of the main control chip to a temperature and humidity sensor, and the like, wherein the main control chip controls the optimal rotation angle of a small motor, namely the optimal opening and closing angle theta of the baffle, and a basic calculation formula of the control model GreeTempModel is as follows:
θ=α*(Tchip－Tout)-β*RH-γ*V-∈*A;
Wherein θ is the opening and closing angle, T chip is the temperature of the main control chip itself, T out is the ambient temperature, RH is the ambient humidity, V is the air flow rate, and A is the heating attenuation.
Wherein α, β, γ, e are adjustment coefficients, the values of which include, but are not limited to, constants, variables or calculation formulas for balancing the influence of each adjustment parameter on the rotation angle of the motor. The adjustment coefficients are required to be obtained by training according to a large amount of experimental data and product characteristics, the above formula is optimized by using a neural network, a more complex and accurate model can be constructed, and the neural network can learn the nonlinear relation among the parameter coefficients through a large amount of data, so that a more accurate optimal rotation angle of the motor is provided, and the baffle is controlled to achieve an optimal opening and closing angle.
Formula interpretation:
and T chip－Tout, the difference value between the self temperature of the main control chip and the outdoor environment temperature. The larger the difference, the larger the rotation angle required by the motor, so that the baffle is opened by a larger angle to increase heat dissipation.
RH, outdoor ambient humidity. The opening and closing angle of the baffle needs to be reduced at high humidity, so that a smaller rotation angle is needed.
V is the air flow rate. The larger the flow velocity is, the better the heat radiation effect is, and the rotation angle of the motor can be properly reduced.
And A, the heating quantity of the main control chip reaches the heating attenuation quantity of the temperature and humidity sensor, and the larger the heating attenuation quantity is, the smaller the influence of the heating quantity of the main control chip on the temperature and humidity sensor is, and the opening and closing angle of the baffle plate can be properly reduced.
5) When the temperature controller is not powered on, the baffle is closed to avoid pollution of finishing materials, and when the temperature controller is powered on until the temperature controller is self-heated and stabilized, the main control chip calculates the angle of controlling the motor to open the baffle according to the self temperature, the air flow rate and the control model, so that the detection temperature is lower than the actual temperature or is higher than the actual temperature due to too large heat dissipation of the detection window.
The neural network control model obtained according to each parameter can calculate and obtain the optimal opening and closing angle of the baffle plate in the current environment according to the input self temperature and air flow rate. For example, when the air flow rate is unchanged, the self-heating temperature rises, the main control chip controls the angle of the baffle to be gradually opened, so that heat dissipation is facilitated, the temperature and humidity sensor can accurately detect, and when the self-heating of a product is stable and no other interference sources appear, the baffle is fixed at the last opening position, so that the temperature and humidity detection is accurately and stably kept.
When the temperature controller generates heat by itself stably, if no interference source exists (wind blows or moisture is overlarge), the baffle is fixedly opened by a preset angle, the preset angle is calculated according to an actual temperature model, and the opened angles of different environmental conditions are different, so that the temperature and humidity detection stability is maintained.
6) When the air flow rate is detected to be in a non-static state, the control model GreeTempModel is combined to judge that the air blows to the temperature controller, the opening and closing angle of the baffle plate is adjusted according to the air speed, and the phenomenon that the detection temperature is lower than the actual temperature due to the fact that the heat is taken away from the detection window by the air blowing is avoided.
For example, when the current temperature controller generates heat by itself stably and no other interference sources appear, the baffle plate is fixed at the last opening position. When the air flow speed is detected to be increased, the temperature model judges that the air blows to the temperature and humidity detection window, the angle of the baffle plate to be reduced is calculated according to the air flow speed, the fact that the temperature near the temperature and humidity detection window is rapidly reduced due to the air blowing is guaranteed not to cause inaccurate detection of the temperature and humidity sensor is avoided, and when the air flow speed is restored to a normal value, the temperature model gradually opens the baffle plate to an optimal opening and closing angle according to the current environment condition.
And when the air flow speed is static, controlling the opening and closing angles of the baffle according to the step 5.
7) When the environmental humidity is detected to be large, the control model GreeTempModel is combined to judge that the environmental humidity is large, the opening and closing angle of the baffle needs to be reduced, and the humidity is prevented from entering the product from the detection window to corrode the temperature and humidity sensor.
At this time, if the opening and closing of the baffle are smaller and the temperature of the main control chip is higher, the temperature value compensation of the baffle needs to be performed, the numerical compensation is performed on the detected ambient temperature and humidity through a formula in combination with the control model GreeTempModel, the temperature detection value is prevented from being higher than the actual temperature, and when the ambient humidity is a normal value, the opening and closing angle of the baffle is controlled according to the step 5.
Specifically, t=tj-Tb, where T is the compensated ambient temperature, T b is the optimal compensation value, and T j is the ambient temperature detected by the temperature and humidity sensor.
And then, according to the optimal compensation value and the ambient temperature detected by the temperature and humidity sensor, compensating the ambient humidity detected by the temperature and humidity sensor of the temperature controller, and realizing by the following formula:
RH=RHj*exp(4283.78*(Tj－Tb)/(243.12+Tj)/(243.12+Tb));
Wherein RH is the compensated ambient humidity, RH j is the ambient humidity detected by the temperature and humidity sensor, T b is the optimal compensation value, and T j is the ambient temperature detected by the temperature and humidity sensor.
Based on this, can be less in temperature controller detection window, main control chip self-heating is higher under the condition, carry out temperature and humidity data's compensation scheme, guarantee the accuracy of temperature and humidity data of the final output of temperature controller.
Example 4
The embodiment provides an electronic device for a temperature controller control method, which comprises at least one processor and a memory in communication connection with the at least one processor, wherein,
The memory stores instructions executable by the one processor, the instructions being executable by the at least one processor to enable the at least one processor to:
The method comprises the steps of controlling the opening of a baffle after the temperature controller is electrified, determining the opening and closing angle of the baffle according to the temperature and humidity parameters and the air flow rate during the period from the temperature controller to the self-heating stability of the temperature controller, detecting the air flow rate change and the environment humidity change of a detection window of the temperature controller after the self-heating stability of the temperature controller, and adjusting the opening and closing angle of the baffle according to the air flow rate change and the environment humidity change.
Example 5
The embodiment of the invention provides software for executing the technical scheme described in the embodiment and the preferred implementation mode.
An embodiment of the present invention provides a non-volatile computer storage medium storing computer executable instructions that can perform the temperature controller control method in any of the above-described method embodiments.
The software is stored in the storage medium, which includes, but is not limited to, optical disk, floppy disk, hard disk, erasable memory, etc.
The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
In the foregoing embodiments of the present invention, the descriptions of the embodiments are emphasized, and for a portion of this disclosure that is not described in detail in this embodiment, reference is made to the related descriptions of other embodiments.
In the several embodiments provided in the present application, it should be understood that the disclosed technology may be implemented in other manners. The above-described embodiments of the apparatus are merely exemplary, and the division of the units, for example, may be a logic function division, and may be implemented in another manner, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interfaces, units or modules, or may be in electrical or other forms.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present invention may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied essentially or in part or all of the technical solution or in part in the form of a software product stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. The storage medium includes a U disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a removable hard disk, a magnetic disk, or an optical disk, etc. which can store the program code.
It should be noted that the above-mentioned embodiments are merely for illustrating the technical solution of the present invention, and not for limiting the same, and although the present invention has been described in detail with reference to the above-mentioned embodiments, it should be understood by those skilled in the art that the technical solution described in the above-mentioned embodiments may be modified or some technical features may be equivalently replaced, and these modifications or substitutions do not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solution of the embodiments of the present invention.
Claims (13)
1. A thermostat, characterized by comprising:
The shell of the temperature controller is provided with a detection window, and a movable baffle is arranged at the detection window and used for adjusting the opening size of the detection window;
The inside of temperature controller is provided with temperature and humidity sensor, air flow rate sensor, main control chip, temperature and humidity sensor with air flow rate sensor is close to the detection window sets up.
2. A thermostat control method applied to the thermostat of claim 1, characterized in that the method includes:
After the temperature controller is electrified, the baffle is controlled to be opened;
Determining the opening and closing angle of the baffle according to the temperature and humidity parameters and the air flow rate during the period from the power-on of the temperature controller to the self-heating stabilization of the temperature controller;
after the temperature controller generates heat by itself stably, detecting the air flow speed change and the environment humidity change of a detection window of the temperature controller, and adjusting the opening and closing angle of the baffle plate according to the air flow speed change and the environment humidity change.
3. The method of claim 2, wherein determining the opening and closing angle of the shutter according to the temperature and humidity parameter and the air flow rate during the period from the power-up of the thermostat to the stabilization of self-heating of the thermostat, comprises:
Acquiring the temperature and humidity parameters, wherein the temperature and humidity parameters comprise the ambient temperature and ambient humidity according to a temperature and humidity sensor of the temperature controller, the air flow rate according to an air flow rate sensor of the temperature controller, the self temperature of a main control chip and the heating attenuation of the main control chip from the heating value to the temperature and humidity sensor;
And calculating to obtain the opening and closing angles of the baffle according to the ambient temperature, the ambient humidity, the self temperature of the main control chip, the heating attenuation and the air flow rate.
4. The method of claim 3, wherein the opening and closing angle of the baffle is calculated according to the ambient temperature, the ambient humidity, the temperature of the main control chip and the heating attenuation, and is realized by the following formula:
θ=α*(Tchip－Tout)-β*RH-γ*V-∈*A;
Wherein θ is an opening and closing angle, T chip is the temperature of the main control chip itself, T out is the ambient temperature, RH is the ambient humidity, V is the air flow rate, a is the heating attenuation, and α, β, γ, and e are adjustment coefficients.
5. The method of claim 2, wherein detecting a change in air flow rate and a change in ambient humidity in a detection window of a thermostat, and adjusting an opening and closing angle of the shutter according to the change in air flow rate and the change in ambient humidity, comprises:
If the air flow rate changes, the opening and closing angles of the baffle plates are adjusted according to the air flow rate;
And
Detecting the change of the ambient humidity, and adjusting the opening and closing angles of the baffle plates according to the ambient humidity if the ambient humidity exceeds a preset humidity value.
6. The method of claim 5, wherein adjusting the opening and closing angle of the baffle according to the air flow rate is accomplished by the following formula:
θ Rear part (S) ＝θ Front part -γ*V;
Wherein θ Rear part (S) is the opening and closing angle after adjustment, θ Front part is the opening and closing angle before adjustment, V is the air flow velocity, and γ is the adjustment coefficient.
7. The method of claim 5, wherein adjusting the opening and closing angle of the baffle according to the ambient humidity is accomplished by the following formula:
θ Rear part (S) ＝θ Front part -β*RH;
Wherein θ Rear part (S) is the opening and closing angle after adjustment, θ Front part is the opening and closing angle before adjustment, RH is the ambient humidity, and β is the adjustment coefficient.
8. The method of claim 5, wherein detecting a change in ambient humidity, and adjusting the opening and closing angle of the shutter based on the ambient humidity if the ambient humidity exceeds a preset humidity value, further comprises:
Judging whether the opening and closing angle of the adjusted baffle is smaller than a preset angle or not, wherein the temperature of the main control chip exceeds a preset temperature threshold;
If so, determining an optimal compensation value according to the current opening and closing angle of the baffle plate;
Compensating the ambient temperature detected by a temperature and humidity sensor of the temperature controller according to the optimal compensation value;
And compensating the ambient humidity detected by the temperature and humidity sensor of the temperature controller according to the optimal compensation value and the ambient temperature detected by the temperature and humidity sensor.
9. The method of claim 8, wherein determining an optimal compensation value based on a current shutter opening and closing angle comprises:
Tb=a(θ0－θ)+b(Tchip－T0);
Wherein Tb is an optimal compensation value, a is a baffle opening and closing angle adjustment coefficient, b is a main control chip temperature adjustment coefficient, θ is a current baffle opening and closing angle, θ 0 is a preset angle, T chip is a main control chip self temperature, and T 0 is a preset temperature threshold.
10. The method according to claim 8, wherein the compensation of the ambient temperature detected by the temperature and humidity sensor of the thermostat according to the optimal compensation value is achieved by the following formula:
T=Tj-Tb;
Wherein, T is the compensated ambient temperature, T b is the optimal compensation value, and T j is the ambient temperature detected by the temperature and humidity sensor.
11. The method according to claim 8, wherein the compensating for the ambient humidity detected by the temperature and humidity sensor of the temperature controller is achieved by the following formula:
RH=RHj*exp(4283.78*(Tj－Tb)/(243.12+Tj)/(243.12+Tb));
Wherein RH is the compensated ambient humidity, RH j is the ambient humidity detected by the temperature and humidity sensor, T b is the optimal compensation value, and T j is the ambient temperature detected by the temperature and humidity sensor.
12. A temperature control device is characterized in that, the temperature control device comprises the temperature controller of claim 1.
13. A computer readable storage medium, on which a computer program is stored, characterized in that the program, when being executed by a processor, implements the method according to any of claims 2 to 11.
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| CN202411576771.5A CN119556744A (en) | 2024-11-06 | 2024-11-06 | A temperature controller and a control method thereof, and a temperature control device |
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| CN202411576771.5A CN119556744A (en) | 2024-11-06 | 2024-11-06 | A temperature controller and a control method thereof, and a temperature control device |
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| US5000381A (en) * | 1989-03-30 | 1991-03-19 | Raytheon Company | Window fan with controller |
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