A method and system for temperature and humidity conditioning

Abstract

This invention relates to a temperature and humidity control method and system, belonging to the field of temperature and humidity control technology, and solves the problem of the lack of an automatic temperature and humidity control method in the prior art that can avoid frequent start-ups and shutdowns of equipment within a set temperature and humidity range. A temperature and humidity control method includes: at each sampling moment, collecting the temperature and humidity within a controlled device; if the humidity at the current sampling moment is higher than the upper humidity limit of the controlled device, adjusting the humidity within the controlled device based on the humidity difference between the current sampling moment's humidity and the upper humidity limit of the controlled device; if the temperature at the current sampling moment is lower than the lower temperature limit of the controlled device, using the upper temperature limit of the controlled device minus a set temperature deviation value as the target for temperature increase adjustment within the controlled device; if the temperature at the current sampling moment is higher than the upper temperature limit of the controlled device, using the lower temperature limit of the controlled device plus a set temperature deviation value as the target for temperature decrease adjustment within the controlled device.

Description

Technical Field

[0001] This invention relates to the field of temperature and humidity control technology, and in particular to a temperature and humidity control method and system. Background Technology

[0002] Some specialized vehicles primarily used for transportation are equipped with temperature and humidity control systems that enable automatic temperature and humidity adjustment during transport. Depending on the settings, the temperature and humidity can be stabilized at a fixed value or controlled within a certain range. When transporting goods that are not very sensitive to temperature and humidity, if the temperature is set to a fixed value, the equipment needs to be constantly on. If the temperature or humidity deviates from the set value, it will frequently start and stop, placing a significant strain on the vehicle's power supply system. Stabilizing the temperature and humidity within a certain range avoids frequent start-stop operations, reduces power consumption, and is beneficial for long-distance transportation.

[0003] Therefore, how to achieve automatic temperature and humidity control within a set temperature and humidity range, and avoid frequent start-ups and shutdowns of the equipment, is an urgent problem to be solved. Summary of the Invention

[0004] Based on the above analysis, the embodiments of the present invention aim to provide a temperature and humidity regulation method and system to solve the problem that the prior art lacks an automatic temperature and humidity control method that can avoid frequent start-up and shutdown of equipment for a set temperature and humidity range.

[0005] On one hand, the present invention provides a method for regulating temperature and humidity, the method comprising:

[0006] At each sampling moment, the temperature and humidity inside the controlled device are collected;

[0007] If the humidity at the current sampling time is higher than the humidity limit of the controlled device, the humidity inside the controlled device is adjusted based on the humidity difference between the humidity at the current sampling time and the humidity limit of the controlled device.

[0008] If the temperature at the current sampling time is lower than the lower limit of the temperature of the controlled device, the target for temperature adjustment is the upper limit of the temperature of the controlled device minus the temperature deviation setting value, and the temperature adjustment is performed in the controlled device.

[0009] If the temperature at the current sampling time is higher than the upper limit of the temperature of the controlled device, the temperature adjustment target is the lower limit of the temperature of the controlled device plus the temperature deviation setting value, and the temperature adjustment is performed in the controlled device.

[0010] Based on the above method, the present invention also makes the following improvements:

[0011] Furthermore, the method of regulating the humidity within the controlled device includes:

[0012] Obtain the humidity difference ΔH(k) at the k-th sampling time:

[0013] ΔH(k)=H(k)-H set (1)

[0014] Where H(k) represents the humidity at the k-th sampling time, and k is an integer greater than 0. set This indicates the upper limit of humidity;

[0015] If ΔH(k)>0.5, the humidity inside the controlled device is adjusted according to the humidity pulse width modulation signal PWM_H during full-power operation;

[0016] If 0 < ΔH(k) ≤ 0.5, the humidity inside the controlled device is stabilized at H. set -σ H The humidity is adjusted to achieve the target humidity level; where σ H This indicates humidity deviation.

[0017] Furthermore, when σ H When the humidity is 5%, the method for regulating the humidity within the controlled device further includes:

[0018] If 0 < ΔH(k) ≤ 0.5, calculate the humidity pulse width modulation signal PWM_H(k) at the kth sampling time according to formula (2):

[0019] PWM_H(k)=[1.818*ΔH(k)+0.0909]*PWM_H (2)

[0020] The humidity inside the controlled device is adjusted according to PWM_H(k).

[0021] Furthermore, the temperature regulation within the controlled device includes:

[0022] If the temperature T(k) at the kth sampling time is lower than the lower limit T of the controlled device test1 Obtain the temperature difference ΔT at the k-th sampling time. up (k):

[0023] ΔT up (k)=T test2 -σ T -T(k) (3)

[0024] T test2 σ represents the upper temperature limit of the controlled device. T This represents the temperature deviation setpoint, σ. T <T tset2 -T test1 ;

[0025] If a1 < ΔT up(k)≤b1, obtain the heating pulse width modulation signal PWM_T at the kth sampling time according to formula (4). up (k):

[0026]

[0027] Wherein, PWM_HOT represents the pulse width modulation signal for heating during full-power operation; a1 represents the first temperature deviation threshold for heating regulation, matched to 30% * PWM_HOT; b1 represents the second temperature deviation threshold for heating regulation, matched to PWM_HOT; 0 < a1 < b1 < T test2 -σ T -T test1 ;

[0028]

[0029] According to PWM_T up (k) Perform temperature regulation within the controlled device.

[0030] Furthermore, the method of adjusting the temperature within the controlled device also includes:

[0031] When k = 1 or 2, if 0 ≤ ΔT up (k)≤a1, no temperature adjustment is performed in the controlled device;

[0032] When k≥3, if 0≤ΔT up (k)≤a1, calculate the heating pulse width modulation signal PWM_T at the kth sampling time according to formula (5). up (k):

[0033]

[0034] ΔPWM_T up (j)=[Kph*ΔT up (j)-Kih*[T(j)-T(j-1)]+Kdh*[T(j-1)-T(j-2)] (6)

[0035] Where Kph, Kih, and Kdh represent the proportional, integral, and derivative coefficients of the temperature rise adjustment, respectively; T(j-1) and T(j-2) represent the temperatures at the (j-1)th and (j-2)th sampling times, respectively; ΔT up (j) represents the temperature difference at the j-th sampling time.

[0036] Furthermore, the cooling regulation within the controlled device includes:

[0037] If the temperature T(k) at the kth sampling time is higher than the upper temperature limit T of the controlled device test2Obtain the temperature difference ΔT at the k-th sampling time. down (k):

[0038] ΔT down (k)=T test1 +σ T -T(k) (7)

[0039] If b2≤ΔT down (k) < a2, obtain the cooling pulse width modulation signal PWM_T at the kth sampling time according to formula (8). down (k):

[0040]

[0041] Wherein, PWM_COLD represents the cooling pulse width modulation signal during full-power operation; a2 represents the first temperature deviation threshold of the cooling regulation, matched with 30% * PWM_COLD; b2 represents the second temperature deviation threshold of the cooling regulation, matched with PWM_COLD;

[0042]

[0043] According to PWM_T down (k) Cooling and regulating the temperature inside the controlled device.

[0044] Furthermore, the cooling regulation within the controlled device also includes:

[0045] When k = 1 or 2, if a2 < ΔT down (k)≤0, no cooling adjustment is performed in the controlled device;

[0046] When k≥3, if a2<ΔT down (k)≤0, calculate the cooling pulse width modulation signal PWM_T at the kth sampling time according to formula (9). down (k):

[0047]

[0048] ΔPWM_T down (j)=[Kpc*ΔT down (j)-Kic*[T(j)-T(j-1)]+Kdc*[T(j-1)-T(j-2)](10)

[0049] Where Kpc, Kic, and Kdc represent the proportional, integral, and derivative coefficients of the cooling regulation, respectively; ΔT down (j) represents the temperature difference at the j-th sampling time.

[0050] On the other hand, the present invention also discloses a temperature and humidity control system, the system comprising:

[0051] The temperature and humidity acquisition module collects the temperature and humidity inside the controlled device at each sampling moment;

[0052] The humidity control module adjusts the humidity within the controlled device based on the humidity difference between the current sampling humidity and the upper limit of the controlled device's humidity if the humidity at the current sampling time is higher than the upper limit of the controlled device's humidity.

[0053] The temperature control module, if the temperature at the current sampling time is lower than the lower limit of the temperature of the controlled device, uses the upper limit of the temperature of the controlled device minus the temperature deviation set value as the temperature control target, and performs temperature control within the controlled device.

[0054] The cooling adjustment module, if the temperature at the current sampling time is higher than the upper temperature limit of the controlled device, uses the lower temperature limit of the controlled device plus the temperature deviation setting value as the cooling adjustment target to perform cooling adjustment within the controlled device.

[0055] Based on the above solution, the following improvements were made:

[0056] Furthermore, the method of regulating the humidity within the controlled device includes:

[0057] Obtain the humidity difference ΔH(k) at the k-th sampling time:

[0058] ΔH(k)=H(k)-H set (11)

[0059] Where H(k) represents the humidity at the k-th sampling time, and k is an integer greater than 0. set This indicates the upper limit of humidity;

[0060] If ΔH(k)>0.5, the humidity inside the controlled device is adjusted according to the humidity pulse width modulation signal PWM_H during full-power operation;

[0061] If 0 < ΔH(k) ≤ 0.5, the humidity inside the controlled device is stabilized at H. set -σ H The humidity is adjusted to achieve the target humidity level; where σ H This indicates humidity deviation.

[0062] Furthermore, when σ H When the humidity is 5%, the method for regulating the humidity within the controlled device further includes:

[0063] If 0 < ΔH(k) ≤ 0.5, calculate the humidity pulse width modulation signal PWM_H(k) at the kth sampling time according to formula (2):

[0064] PWM_H(k)=[1.818*ΔH(k)+0.0909]*PWM_H (12)

[0065] The humidity inside the controlled device is adjusted according to PWM_H(k).

[0066] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0067] This invention provides a method for regulating temperature and humidity, which has the following advantages:

[0068] For controlled devices with set temperature and humidity ranges, instead of directly using boundary values ​​as the target value for adjustment, a certain value within the range is used as the target value for adjustment, thereby avoiding frequent start-ups and shutdowns during the temperature and humidity adjustment process of the equipment.

[0069] Meanwhile, for humidity regulation, temperature rise regulation, and temperature drop regulation, the adjustment methods corresponding to different deviations are fully considered. The overall idea is to ensure the speed of adjustment when the deviation is large and the stability of adjustment when the deviation is small, to avoid frequent start-ups and shutdowns of the equipment, reduce power consumption, and provide specific adjustment formulas to facilitate better implementation of this solution by those skilled in the art.

[0070] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages may become apparent from the description or be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained from what is particularly pointed out in the description and drawings. Attached Figure Description

[0071] The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Throughout the drawings, the same reference numerals denote the same parts.

[0072] Figure 1 This is a flowchart of the temperature and humidity control method provided in Embodiment 1 of the present invention;

[0073] Figure 2 This is a schematic diagram of the temperature and humidity control system provided in Embodiment 1 of the present invention. Detailed Implementation

[0074] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0075] Example 1

[0076] A specific embodiment of the present invention discloses a method for regulating temperature and humidity, the flowchart of which is shown below. Figure 1 As shown, the method includes the following steps:

[0077] Step S1: At each sampling moment, collect the temperature and humidity inside the controlled device;

[0078] Step S2: If the humidity at the current sampling time is higher than the humidity limit of the controlled device, adjust the humidity inside the controlled device based on the humidity difference between the humidity at the current sampling time and the humidity limit of the controlled device;

[0079] Step S3: If the temperature at the current sampling time is lower than the lower limit of the temperature of the controlled device, the upper limit of the temperature of the controlled device minus the temperature deviation setting value is used as the temperature rise adjustment target, and the temperature rise adjustment in the controlled device is performed.

[0080] Step S4: If the temperature at the current sampling time is higher than the upper limit of the temperature of the controlled device, the temperature adjustment target is the lower limit of the temperature of the controlled device plus the temperature deviation setting value, and the temperature adjustment is performed in the controlled device.

[0081] Preferably, in step S2, adjusting the humidity within the controlled device includes:

[0082] Step S21: Obtain the humidity difference ΔH(k) at the kth sampling time:

[0083] ΔH(k)=H(k)-H set (1)

[0084] Where H(k) represents the humidity at the k-th sampling time, and k is an integer greater than 0. set This indicates the upper limit of humidity;

[0085] Step S22: If ΔH(k)>0.5, it indicates that the humidity difference is large. In this case, in order to improve the dehumidification speed, in this embodiment, the humidity in the controlled device is adjusted according to the humidity pulse width modulation signal PWM_H when running at full power.

[0086] Step S23: If 0 < ΔH(k) ≤ 0.5, stabilize the humidity in the controlled device at H. set -σ H The humidity is adjusted to achieve the target humidity level; where σ H This indicates humidity deviation.

[0087] In this embodiment, if 0 < ΔH(k) ≤ 0.5, it indicates that the humidity difference is not large. In this case, the focus is on the problem that the device may frequently start when the humidity value is at the critical state. To avoid the device frequently starting when at the critical state, the final humidity can be stabilized at H according to the adjustment law. set -σ H.

[0088] Specifically, when σ H When = 5%, if 0 < ΔH(k) ≤ 0.5, calculate the humidity pulse width modulation signal PWM_H(k) at the kth sampling time according to formula (2):

[0089] PWM_H(k)=[1.818*ΔH(k)+0.0909]*PWM_H (2)

[0090] Step S24: Adjust the humidity inside the controlled device according to PWM_H(k).

[0091] It should be noted that the two values ​​in formula (2) are determined in the following way:

[0092] Assuming that the coefficient before PWM_H in formula (2) is expressed in the form of A1x+B1, then x corresponds to ΔH(k);

[0093] When ΔH(k) = 0.5, x = 0.5, and we hope that A1x + B1 = 1, that is, full power operation;

[0094] Since the ultimate goal of humidity stability is H set -σ H When σ H When the humidity is 5%, ΔH(k) = 0.05, x = -0.05, and we want A1x + B1 = 0, that is, to stop humidity adjustment;

[0095] United Thus obtain The expression in formula (2) can then be obtained; therefore, according to formula (2), adaptive humidity regulation can be achieved in the process of 0 < ΔH(k) ≤ 0.5.

[0096] Preferably, in step S3, the temperature adjustment within the controlled device includes:

[0097] Step S31: If the temperature T(k) at the kth sampling time is lower than the lower limit T of the controlled device test1 Obtain the temperature difference ΔT at the k-th sampling time. up (k):

[0098] ΔT up (k)=T test2 -σ T -T(k) (3)

[0099] T test2 σ represents the upper temperature limit of the controlled device. T This represents the temperature deviation setpoint, σ. T <T tset2 -Ttest1 This parameter can be set according to actual engineering practice and temperature control requirements. For example, σ T 0.5 is acceptable;

[0100] Step S32: If a1 < ΔT up (k)≤b1, obtain the heating pulse width modulation signal PWM_T at the kth sampling time according to formula (4). up (k):

[0101]

[0102] Wherein, PWM_HOT represents the pulse width modulation signal for heating during full-power operation; a1 represents the first temperature deviation threshold for heating regulation, matched to 30% * PWM_HOT; b1 represents the second temperature deviation threshold for heating regulation, matched to PWM_HOT; 0 < a1 < b1 < T test2 -σ T -T test1 a1 and b1 can be set according to the specific temperature adjustment requirements, which will not be elaborated here.

[0103]

[0104] In the interval a1 < ΔT up Within (k)≤b1, due to the large temperature difference, in order to achieve rapid convergence, the temperature is adjusted based on the method in formula (4). The principle is: the Sigmoid function is a smooth curve, and its output changes continuously with the input. This function has a good trend of change in the interval [-4,0], which is very close to the ideal temperature control curve of this embodiment. Therefore, in this embodiment, when a1<ΔT up When (k)≤b1, the Sigmoid function is used as the temperature control curve. Its control method is shown in formula (4), which guarantees:

[0105] When ΔT up When (k) = b1, the output is controlled by PWM_HOT;

[0106] When ΔT up When (k) decreases to a1, the output PWM_HOT is close to 30% of full power.

[0107] Based on the above principles, the values ​​in formula (4) are determined in the following way:

[0108] Assume that the coefficient before PWM_HOT in formula (4) is expressed as In this form, x and x1(k) correspond;

[0109] When ΔT upWhen (k) = b1, x1(k) = 0, x = 0. hope That is, operating at full power;

[0110] When ΔT up When (k) = a1, x1(k) = -4, x = -4. At this moment, hope That is, it operates at 30% of full power;

[0111] United Thus obtain The expression in formula (4) can then be obtained.

[0112] Step S33: When k = 1 or 2, if 0 ≤ ΔT up (k)≤a1, no temperature adjustment is performed in the controlled device;

[0113] When k≥3, if 0≤ΔT up (k)≤a1, calculate the heating pulse width modulation signal PWM_T at the kth sampling time according to formula (5). up (k):

[0114]

[0115] ΔPWM_T up (j)=[Kph*ΔT up (j)-Kih*[T(j)-T(j-1)]+Kdh*[T(j-1)-T(j-2)] (6)

[0116] Where Kph, Kih, and Kdh represent the proportional, integral, and derivative coefficients of the temperature rise adjustment, respectively; T(j-1) and T(j-2) represent the temperatures at the (j-1)th and (j-2)th sampling times, respectively; ΔT up (j) represents the temperature difference at the j-th sampling time.

[0117] In the interval 0≤ΔT up Within (k)≤a1, since the temperature control is close to the target value, PWM_T can be adjusted using step S33. up (k). When PWM_T up When (k) is adjusted to 0, the temperature T(k) falls between the lower limit and the upper limit of the controlled device, and the temperature adjustment can be ended.

[0118] Step S34: According to PWM_T up (k) Perform temperature regulation within the controlled device.

[0119] In step S4, the cooling adjustment within the controlled device includes:

[0120] Step S41: If the temperature T(k) at the kth sampling time is higher than the upper temperature limit T of the controlled device... test2 Obtain the temperature difference ΔT at the k-th sampling time. down (k):

[0121] ΔT down (k)=T test1 +σ T -T(k) (7)

[0122] Step S42: If b2≤ΔT down (k)≤a2, obtain the cooling pulse width modulation signal PWM_T at the kth sampling time according to formula (8). down (k):

[0123]

[0124] Wherein, PWM_COLD represents the cooling pulse width modulation signal during full-power operation; a2 represents the first temperature deviation threshold for cooling adjustment, matched to 30% * PWM_COLD; b2 represents the second temperature deviation threshold for cooling adjustment, matched to PWM_COLD; a2 and b2 can be specifically set according to the heating adjustment requirements, which will not be elaborated here; T test1 +σ T -T test2 <b2<a2<0,

[0125] The method for determining the parameters in formula (8) is the same as that for determining the parameters in formula (4), and will not be repeated here.

[0126] Step S43: When k = 1 or 2, if a2 < ΔT down (k)≤0, no cooling adjustment is performed in the controlled device; when k≥3, if a2<ΔT down (k)≤0, calculate the cooling pulse width modulation signal PWM_T at the kth sampling time according to formula (9). down (k):

[0127]

[0128] ΔPWM_T down (j)=[Kpc*ΔT down (j)-Kic*[T(j)-T(j-1)]+Kdc*[T(j-1)-T(j-2)](10)

[0129] Where Kpc, Kic, and Kdc represent the proportional, integral, and derivative coefficients of the cooling regulation, respectively; ΔT down (j) represents the temperature difference at the j-th sampling time.

[0130] The adjustment method in step S43 is consistent with the adjustment approach in step S33.

[0131] Step S44: According to PWM_T down (k) Cooling and regulating the temperature inside the controlled device.

[0132] In summary, compared with the prior art, the temperature and humidity control method provided in this embodiment has the following advantages:

[0133] For controlled devices with set temperature and humidity ranges, instead of directly using boundary values ​​as the target value for adjustment, a certain value within the range is used as the target value for adjustment, thereby avoiding frequent start-ups and shutdowns during the temperature and humidity adjustment process of the equipment.

[0134] Meanwhile, for humidity regulation, temperature rise regulation, and temperature drop regulation, the adjustment methods corresponding to different deviations are fully considered. The overall idea is to ensure the speed of adjustment when the deviation is large and the stability of adjustment when the deviation is small, to avoid frequent start-ups and shutdowns of the equipment, reduce power consumption, and provide specific adjustment formulas to facilitate better implementation of this solution by those skilled in the art.

[0135] Example 2

[0136] Embodiment 2 of the present invention provides a temperature and humidity control system, as shown in the schematic diagram. Figure 2 As shown, the system includes:

[0137] The temperature and humidity acquisition module collects the temperature and humidity inside the controlled device at each sampling moment;

[0138] The humidity control module adjusts the humidity within the controlled device based on the humidity difference between the current sampling humidity and the upper limit of the controlled device's humidity if the humidity at the current sampling time is higher than the upper limit of the controlled device's humidity.

[0139] The temperature control module, if the temperature at the current sampling time is lower than the lower limit of the temperature of the controlled device, uses the upper limit of the temperature of the controlled device minus the temperature deviation set value as the temperature control target, and performs temperature control within the controlled device.

[0140] The cooling adjustment module, if the temperature at the current sampling time is higher than the upper temperature limit of the controlled device, uses the lower temperature limit of the controlled device plus the temperature deviation setting value as the cooling adjustment target to perform cooling adjustment within the controlled device.

[0141] Since Embodiments 1 and 2 of this invention are implemented based on the same technical concept, relevant aspects can be referenced from each other, and will not be repeated here. The same technical effects can be obtained.

[0142] Those skilled in the art will understand that all or part of the processes of the methods described in the above embodiments can be implemented by a computer program instructing related hardware, and the program can be stored in a computer-readable storage medium. The computer-readable storage medium may be a disk, optical disk, read-only memory, or random access memory, etc.

[0143] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A method for regulating temperature and humidity, characterized in that, The method includes: At each sampling moment, the temperature and humidity inside the controlled device are collected; If the humidity at the current sampling time is higher than the humidity limit of the controlled device, the humidity inside the controlled device is adjusted based on the humidity difference between the humidity at the current sampling time and the humidity limit of the controlled device. If the temperature at the current sampling time is lower than the lower limit of the temperature of the controlled device, the target for temperature adjustment is the upper limit of the temperature of the controlled device minus the temperature deviation setting value, and the temperature adjustment is performed in the controlled device. If the temperature at the current sampling time is higher than the upper temperature limit of the controlled device, the temperature adjustment target is the lower temperature limit of the controlled device plus the temperature deviation set value, and the temperature adjustment is performed in the controlled device. The process of adjusting the temperature within the controlled device includes: If the first Temperature at each sampling time Below the temperature limit of the controlled device , obtain the Temperature difference at each sampling time : (1) Indicates the upper temperature limit of the controlled device. This indicates the temperature deviation setting value. ; like According to formula (2), the first... The heating pulse width modulation signal at each sampling time : (2) in, This indicates the heating pulse width modulation signal during full-power operation; This indicates the first temperature deviation threshold for temperature adjustment, matched to ; This represents the second temperature deviation threshold for temperature regulation, matched to... ; ; ; according to To regulate the temperature within the controlled device.

2. The temperature and humidity control method according to claim 1, characterized in that, The method of regulating the humidity within the controlled device includes: Get the Humidity difference at each sampling time : (3) in, Indicates the first Humidity at each sampling time, Integers greater than 0 This indicates the upper limit of humidity; like Based on the humidity pulse width modulation signal during full-power operation Adjust the humidity inside the controlled device; like The humidity inside the controlled device is stabilized at To achieve the humidity control target, the humidity within the controlled device is adjusted; whereby... This indicates humidity deviation.

3. The temperature and humidity control method according to claim 2, characterized in that, when At the same time, the method of regulating humidity within the controlled device further includes: like Calculate the first according to formula (4) Humidity pulse width modulation signal at each sampling time : (4) according to Adjust the humidity inside the controlled device.

4. The temperature and humidity control method according to claim 3, characterized in that, The method of regulating the temperature within the controlled device also includes: when Or 2, if No temperature regulation is performed within the controlled device; when At that time, if Calculate the first according to formula (5) The heating pulse width modulation signal at each sampling time : (5) (6) in, , , These represent the proportional, integral, and derivative coefficients of the temperature adjustment, respectively. , They represent the first , Temperature at each sampling time; Indicates the first The temperature difference at each sampling time.

5. The temperature and humidity control method according to claim 4, characterized in that, The cooling regulation within the controlled device includes: If the first Temperature at each sampling time Temperature above the upper limit of the controlled device , obtain the Temperature difference at each sampling time : (7) like According to formula (8), the first... Cooling pulse width modulation signal at each sampling time : (8) in, This represents the cooling pulse width modulation signal during full-power operation. This indicates the first temperature deviation threshold for cooling regulation, matched to ; This represents the second temperature deviation threshold for cooling regulation, matched to ; ; ; according to The temperature inside the controlled device is adjusted by cooling.

6. The temperature and humidity control method according to claim 5, characterized in that, The cooling regulation within the controlled device also includes: when Or 2, if No cooling adjustment is performed within the controlled device; when At that time, if Calculate the first according to formula (9) Cooling pulse width modulation signal at each sampling time : (9) (10) in, , , These represent the proportional, integral, and derivative coefficients of the cooling regulation, respectively. Indicates the first The temperature difference at each sampling time.

7. A temperature and humidity control system, characterized in that, The system implements the temperature and humidity control method according to any one of claims 1-6, and the system comprises: The temperature and humidity acquisition module collects the temperature and humidity inside the controlled device at each sampling moment; The humidity control module adjusts the humidity within the controlled device based on the humidity difference between the current sampling humidity and the upper limit of the controlled device's humidity if the humidity at the current sampling time is higher than the upper limit of the controlled device's humidity. The temperature control module, if the temperature at the current sampling time is lower than the lower limit of the temperature of the controlled device, uses the upper limit of the temperature of the controlled device minus the temperature deviation set value as the temperature control target, and performs temperature control within the controlled device. The cooling adjustment module, if the temperature at the current sampling time is higher than the upper temperature limit of the controlled device, uses the lower temperature limit of the controlled device plus the temperature deviation setting value as the cooling adjustment target to perform cooling adjustment within the controlled device.

8. The temperature and humidity control system according to claim 7, characterized in that, The method of regulating the humidity within the controlled device includes: Get the Humidity difference at each sampling time : (11) in, Indicates the first Humidity at each sampling time, Integers greater than 0 This indicates the upper limit of humidity; like Based on the humidity pulse width modulation signal during full-power operation Adjust the humidity inside the controlled device; like The humidity inside the controlled device is stabilized at To achieve the humidity control target, the humidity within the controlled device is adjusted; whereby... This indicates humidity deviation.

9. The temperature and humidity control system according to claim 8, characterized in that, when At the same time, the method of regulating humidity within the controlled device further includes: like Calculate the first according to formula (12) Humidity pulse width modulation signal at each sampling time : (12) according to Adjust the humidity inside the controlled device.

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