CN-117289741-B - Temperature and humidity adjusting method and system

CN117289741BCN 117289741 BCN117289741 BCN 117289741BCN-117289741-B

Abstract

The invention relates to a temperature and humidity regulation method and system, relates to the technical field of temperature and humidity regulation, and solves the problem that the prior art lacks an automatic temperature and humidity regulation mode aiming at setting a temperature and humidity interval and capable of avoiding frequent start and stop of equipment. A temperature and humidity adjusting method comprises the steps of collecting temperature and humidity in a controlled device at each sampling moment, adjusting the humidity in the controlled device based on a humidity difference between the humidity at the current sampling moment and the humidity upper limit of the controlled device if the humidity at the current sampling moment is higher than the humidity upper limit of the controlled device, adjusting the temperature in the controlled device by taking the temperature upper limit of the controlled device minus a value of a temperature deviation set value as a temperature-increasing adjusting target if the temperature at the current sampling moment is lower than the temperature lower limit of the controlled device, and adjusting the temperature in the controlled device by taking the temperature lower limit of the controlled device plus the value of the temperature deviation set value as a temperature-decreasing adjusting target if the temperature at the current sampling moment is higher than the temperature upper limit of the controlled device.

Inventors

WANG YUNFENG
GUO WEIYUN
ZHANG ZHONGNAN
ZHENG HAORAN
Ma Wenmiao

Assignees

北京机械设备研究所

Dates

Publication Date: 20260505
Application Date: 20220617

Claims (9)

1. A method of temperature and humidity regulation, the method comprising: at each sampling moment, collecting the temperature and humidity in the controlled device; if the humidity at the current sampling time is higher than the upper humidity limit of the controlled device, adjusting the humidity in the controlled device based on the humidity difference between the humidity at the current sampling time and the upper humidity limit of the controlled device; If the temperature at the current sampling moment is lower than the temperature lower limit of the controlled device, taking the value obtained by subtracting the temperature deviation set value from the temperature upper limit of the controlled device as a temperature rise regulation target, and carrying out temperature rise regulation in the controlled device; If the temperature at the current sampling moment is higher than the upper temperature limit of the controlled device, taking the value of the lower temperature limit of the controlled device plus the temperature deviation set value as a cooling regulation target, and carrying out cooling regulation in the controlled device; The heating adjustment in the controlled device comprises the following steps: If at first Temperature at each sampling instant Lower than the lower temperature limit of the controlled device Obtain the first Temperature rise difference at each sampling time : (1) Indicating the upper temperature limit of the controlled device, Indicating the temperature deviation set point, ; If it is Obtain the first according to formula (2) Temperature rise pulse width modulation signal of each sampling time : (2) Wherein, the A warm-up pulse width modulation signal representing full power operation; A first temperature deviation threshold value representing temperature rise adjustment, matching with ; A second temperature deviation threshold value representing temperature rise adjustment, matching with ; ; ; According to And (5) performing temperature rise adjustment in the controlled device.
2. The method of claim 1, wherein the adjusting humidity in the controlled device comprises: Acquisition of the first Humidity difference at each sampling instant : (3) Wherein, the Represent the first The humidity at the time of the sample, Is an integer greater than 0 and is selected from the group consisting of, Representing the upper humidity limit; If it is Based on humidity pulse width modulation signal at full power operation Regulating humidity in the controlled device; If it is Stable at the humidity in the controlled device For the humidity adjusting target, the humidity in the controlled device is adjusted, wherein, Indicating humidity deviation.
3. The method according to claim 2, wherein when When the humidity in the controlled device is adjusted, the method further comprises the following steps: If it is Calculate the first according to equation (4) Humidity pulse width modulation signal at each sampling instant : (4) According to And adjusting the humidity in the controlled device.
4. A temperature and humidity adjustment method according to claim 3, wherein the performing temperature rise adjustment in the controlled device further comprises: When (when) Or 2, if The temperature rise adjustment in the controlled device is not performed; When (when) When in use, if Calculate the first according to equation (5) Temperature rise pulse width modulation signal of each sampling time : (5) (6) Wherein, the 、、 Respectively representing the proportion, integral and differential coefficients of temperature rise regulation; 、 Respectively represent the first 、 The temperature at each sampling instant; represent the first The rising temperature difference at each sampling instant.
5. The method of claim 4, wherein the performing temperature reduction adjustment in the controlled device comprises: If at first Temperature at each sampling instant Is higher than the upper temperature limit of the controlled device Obtain the first Temperature drop difference at each sampling time : (7) If it is Obtain the first according to formula (8) Cooling pulse width modulation signal of each sampling moment : (8) Wherein, the A cool down pulse width modulation signal representing full power operation; A first temperature deviation threshold value representing cooling adjustment, which is matched with ; A second temperature deviation threshold representing cooling regulation, matching with ; ; ; According to And cooling and adjusting the temperature in the controlled device.
6. The method of temperature and humidity regulation according to claim 5, wherein the performing temperature reduction regulation in the controlled device further comprises: When (when) Or 2, if The temperature reduction adjustment in the controlled device is not performed; When (when) When in use, if Calculate the first according to equation (9) Cooling pulse width modulation signal of each sampling moment : (9) (10) Wherein, the 、、 Respectively representing the proportion, integral and differential coefficients of the cooling adjustment; represent the first The temperature difference is reduced at each sampling instant.
7. A temperature and humidity regulation system, characterized in that it is realized according to the temperature and humidity regulation method according to any one of claims 1 to 6, said system comprising: The temperature and humidity acquisition module acquires the temperature and humidity in the controlled device at each sampling moment; the humidity adjusting module is used for adjusting the humidity in the controlled device based on the humidity difference between the humidity at the current sampling moment and the humidity upper limit of the controlled device if the humidity at the current sampling moment is higher than the humidity upper limit of the controlled device; The temperature rise adjusting module is used for carrying out temperature rise adjustment in the controlled device by taking the value obtained by subtracting the temperature deviation set value from the upper temperature limit of the controlled device as a temperature rise adjusting target if the temperature at the current sampling moment is lower than the lower temperature limit of the controlled device; And the cooling adjusting module is used for carrying out cooling adjustment in the controlled device by taking the value of the temperature lower limit of the controlled device plus the temperature deviation set value as a cooling adjusting target if the temperature at the current sampling moment is higher than the temperature upper limit of the controlled device.
8. The system of claim 7, wherein the means for regulating humidity in the controlled device comprises: Acquisition of the first Humidity difference at each sampling instant : (11) Wherein, the Represent the first The humidity at the time of the sample, Is an integer greater than 0 and is selected from the group consisting of, Representing the upper humidity limit; If it is Based on humidity pulse width modulation signal at full power operation Regulating humidity in the controlled device; If it is Stable at the humidity in the controlled device For the humidity adjusting target, the humidity in the controlled device is adjusted, wherein, Indicating humidity deviation.
9. The temperature and humidity conditioning system of claim 8 wherein, when When the humidity in the controlled device is adjusted, the method further comprises the following steps: If it is Calculate the first according to equation (12) Humidity pulse width modulation signal at each sampling instant : (12) According to And adjusting the humidity in the controlled device.

Description

Temperature and humidity adjusting method and system Technical Field The invention relates to the technical field of temperature and humidity regulation, in particular to a temperature and humidity regulation method and system. Background Some special vehicles mainly used for transportation are designed with temperature and humidity control systems, and automatic temperature and humidity adjustment in the transportation process can be realized. According to the setting, the temperature and humidity can be stabilized at a certain fixed value or controlled within a certain range. When the temperature and humidity are not sensitive to the temperature and the humidity, if the temperature is set to be a fixed value, the equipment is required to be in an on state all the time, and once the temperature and the humidity deviate from the set value, the equipment can be frequently started to work, so that small impact is brought to a power supply system of a vehicle. And the temperature and the humidity are stabilized in a certain range, so that the equipment can be prevented from being started and stopped frequently, the power consumption can be reduced, and the long-distance transportation is facilitated. Therefore, how to realize automatic temperature and humidity regulation aiming at setting a temperature and humidity interval and capable of avoiding frequent start and stop of equipment is a problem to be solved urgently. Disclosure of Invention In view of the above analysis, the embodiment of the invention aims to provide a temperature and humidity adjusting method and a temperature and humidity adjusting system, which are used for solving the problem that the prior art lacks an automatic temperature and humidity adjusting mode aiming at setting a temperature and humidity interval and capable of avoiding frequent start and stop of equipment. In one aspect, the invention provides a temperature and humidity adjustment method, which comprises the following steps: at each sampling moment, collecting the temperature and humidity in the controlled device; if the humidity at the current sampling time is higher than the upper humidity limit of the controlled device, adjusting the humidity in the controlled device based on the humidity difference between the humidity at the current sampling time and the upper humidity limit of the controlled device; If the temperature at the current sampling moment is lower than the temperature lower limit of the controlled device, taking the value obtained by subtracting the temperature deviation set value from the temperature upper limit of the controlled device as a temperature rise regulation target, and carrying out temperature rise regulation in the controlled device; And if the temperature at the current sampling moment is higher than the upper temperature limit of the controlled device, taking the value of the lower temperature limit of the controlled device plus the temperature deviation set value as a cooling regulation target, and carrying out cooling regulation in the controlled device. Based on the method, the invention also makes the following improvements: further, the adjusting humidity in the controlled device includes: acquiring a humidity difference delta H (k) at a kth sampling time: ΔH(k)=H(k)-Hset (1) wherein H (k) represents the humidity at the kth sampling time, k is an integer greater than 0, and H set represents the upper humidity limit; If delta H (k) >0.5, regulating the humidity in the controlled device according to a humidity pulse width modulation signal PWM_H during full power operation; If 0< delta H (k) is less than or equal to 0.5, the humidity in the controlled device is regulated by taking the humidity in the controlled device stabilized at H set-σH as a humidity regulation target, wherein sigma H represents humidity deviation. Further, when σ H =5%, the adjusting humidity in the controlled device further includes: if 0< delta H (k) is less than or equal to 0.5, calculating a humidity pulse width modulation signal PWM_H (k) at a kth sampling time according to a formula (2): PWM_H(k)=[1.818*ΔH(k)+0.0909]*PWM_H (2) And regulating the humidity in the controlled device according to the PWM_H (k). Further, the performing temperature rise adjustment in the controlled device includes: If the temperature T (k) at the kth sampling time is lower than the temperature lower limit T test1 of the controlled device, obtaining the temperature rise difference Δt up (k) at the kth sampling time: ΔTup(k)＝Ttest2-σT-T(k) (3) T test2 denotes the upper temperature limit of the controlled device, σ T denotes the temperature deviation set point, σ T＜Ttset2-Ttest1; If a 1＜ΔTup(k)≤b1, the warming pulse width modulation signal pwm_t up (k) at the kth sampling time is obtained according to formula (4): Wherein PWM_HOT represents a warming pulse width modulation signal in full power operation, a 1 represents a first temperature deviation threshold of warming adjustment, which is m