Intelligent outdoor box dehumidification system based on multi-modal cooperative dehumidification

Abstract

The application relates to the technical field of outdoor electrical equipment protection, and discloses an intelligent outdoor box dehumidification system based on multi-modal cooperative dehumidification, which is composed of an environment sensing module, a central intelligent control module and a multi-modal dehumidification execution module, wherein the environment sensing module collects original data of the environment inside and outside the box through multiple sensors in real time; the central intelligent control module is internally provided with a wet air thermodynamic calculation formula, receives sensing data of internal temperature and humidity, external temperature and humidity and condensation signals for real-time operation, and outputs multiple driving signals in combination with preset determination thresholds, so as to make decisions and execute the optimal dehumidification mode; the multi-modal dehumidification execution module receives the driving signals, selectively starts condensation dehumidification, ventilation, heating condensation prevention and condensate discharge actions, and causes changes of the box environment parameters after operation, the changes are continuously collected by the environment sensing module and fed back to the central intelligent control module, so that dynamic closed-loop self-adaptive regulation is realized.

Description

Technical Field

[0001] This invention relates to the field of outdoor electrical equipment protection technology, specifically to an intelligent outdoor enclosure dehumidification system based on multimodal collaborative dehumidification. Background Technology

[0002] Outdoor enclosures (such as power distribution boxes, communication base station boxes, and photovoltaic inverter boxes) are exposed to complex atmospheric environments for extended periods, and their internal electrical components have strict requirements regarding the temperature and humidity of the operating environment. However, in rainy seasons, high-humidity areas, or areas with large diurnal temperature variations, moisture can easily infiltrate the enclosure due to the "breathing effect": when the external ambient temperature rises, the air inside the enclosure expands due to heat and some of it is expelled; when the temperature drops, the air pressure inside the enclosure decreases, and humid air from outside is drawn in through the enclosure's gaps. Simultaneously, when the internal air temperature drops, water vapor condenses on the enclosure walls and the surfaces of electrical components after reaching its dew point, forming liquid water. This condensation phenomenon can lead to serious malfunctions such as corrosion of metal parts, deterioration of insulation material performance, short circuits, and even equipment burnout, significantly reducing the operational reliability and service life of the outdoor enclosure.

[0003] To address the aforementioned moisture problem, the following dehumidification methods are currently mainly used: 1) Heating method: Installing heating elements such as PTC heating pads inside the chamber to reduce relative humidity by raising the air temperature inside. However, this method has significant drawbacks: First, continuous heating consumes a large amount of power, which is not conducive to energy-saving operation; second, heating can only reduce the relative humidity of the air, but cannot reduce the absolute moisture content in the air, and condensation will still occur when the temperature drops again; third, local high temperatures may accelerate the aging of surrounding non-heat-resistant components (such as plastic insulation parts, electronic components, etc.), thus shortening the equipment's lifespan. 2) Physical adsorption method: Placing desiccants such as silica gel and molecular sieves inside the chamber to absorb moisture from the air through physical adsorption. This method is passive dehumidification with limited moisture absorption capacity. When the desiccant reaches saturation, the dehumidification effect drops sharply, and it requires regular manual replacement or regeneration, resulting in high maintenance costs and low intelligence, making it difficult to meet the needs of unattended scenarios. 3) Ventilation method: Opening ventilation holes or installing small fans in the chamber to remove moisture through airflow. However, the effectiveness of this method is highly dependent on external environmental conditions. When the external air humidity is higher (such as rainy days, foggy days, or high humidity seasons), ventilation will actually introduce more moisture, causing the humidity inside the chamber to rise further, and the dehumidification effect is extremely unstable.

[0004] In summary, existing dehumidification methods all have their limitations and cannot simultaneously meet the comprehensive requirements of active dehumidification, intelligent control, high efficiency and energy saving, and maintenance-free or low maintenance. Therefore, there is an urgent need for an intelligent dehumidification system based on a multimodal collaborative dehumidification mechanism that can adaptively select the optimal dehumidification strategy according to the environmental parameters inside and outside the enclosure, fundamentally solving the moisture and condensation problems inside outdoor enclosures and ensuring the safe and stable operation of electrical equipment. Summary of the Invention

[0005] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides an intelligent outdoor enclosure dehumidification system based on multimodal collaborative dehumidification. It has the advantages of strong active dehumidification capability, low power consumption, adaptive dehumidification strategy, low maintenance cost, and wide environmental adaptability. It solves the problems of existing heating methods that can only reduce relative humidity and have high power consumption, physical adsorption methods that have limited dehumidification capacity and require frequent manual maintenance, ventilation methods that are limited by the external environment and have unstable dehumidification effect, and existing technologies that cannot intelligently select the optimal dehumidification strategy according to real-time environmental conditions.

[0006] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: an intelligent outdoor enclosure dehumidification system based on multimodal collaborative dehumidification, the system consisting of a three-level architecture of an environmental sensing module, a central intelligent control module, and a multimodal dehumidification execution module; The environmental sensing module collects raw environmental data inside and outside the box in real time through internal temperature and humidity sensors, external temperature and humidity sensors and condensation sensors, and transmits the collected signals to the central intelligent control module. The central intelligent control module has a built-in thermodynamic calculation formula for humid air. It performs real-time calculations based on the sensing data of internal temperature and humidity, external temperature and humidity, and condensation signals. It also outputs multiple drive signals in combination with preset judgment thresholds to determine and execute the optimal dehumidification mode. The multimodal dehumidification execution module is responsible for receiving the drive signal from the central intelligent control module and selectively activating the built-in unit to perform condensation dehumidification, ventilation, heating to prevent condensation and condensate discharge. After operation, it causes changes in the environmental parameters of the cabinet. These changes are continuously collected by the environmental sensing module and fed back to the central intelligent control module to achieve dynamic closed-loop adaptive adjustment.

[0007] Preferably, the internal temperature and humidity sensor is built-in: (1) Electronic temperature sensor and electronic humidity sensor, used to collect temperature and humidity values ​​inside the box and monitor the temperature and humidity of the air inside the box; (2) External temperature and humidity sensors: Electronic temperature sensors and electronic humidity sensors are installed in the ventilation area outside the enclosure to collect the temperature and humidity values ​​outside the enclosure to monitor the temperature and humidity of the external environment; (3) Condensation sensor: It is installed directly on the inner wall of the box or near the key electrical components. It has a built-in humidity-sensitive element and outputs a signal directly when water droplets form on the surface to detect whether condensation has occurred.

[0008] Preferably, the multimodal dehumidification execution module integrates an active condensation dehumidification unit, an intelligent ventilation unit, an auxiliary heating unit, and a drainage system.

[0009] Preferably, the active condensation dehumidification unit consists of a semiconductor cooling chip, heat dissipation fins and a fan. Its cold end is used to condense water vapor in the air, convert water vapor into liquid water and discharge it outside the box, when the absolute humidity inside the box is ≥70% or the humidity outside the box is higher than that inside the box.

[0010] Preferably, the intelligent ventilation unit consists of an intake and exhaust fan and a dust and insect screen. When the system determines that the internal humidity is ≥60% and the external air is drier than the internal air, the system automatically starts the intake and exhaust fans to exchange air.

[0011] Preferably, the auxiliary heating unit is composed of a low-power PTC heater, used to assist the active condensation dehumidification unit in defrosting under low-temperature conditions.

[0012] Preferably, the drainage system is used to collect the water generated by the active condensation dehumidification unit and discharge it outside the box through a conduit.

[0013] Preferably, the central intelligent control module incorporates a humid air thermodynamic algorithm to collect temperature and humidity data inside the chamber every 30 seconds. , Temperature and humidity outside the box , Based on the condensation sensor signal, the saturated vapor pressure is calculated. Actual water vapor pressure Dew point temperature absolute humidity Condensation temperature difference With moisture content It automatically switches the dehumidification mode based on the calculation results to achieve closed-loop intelligent control.

[0014] Preferably, the parameters in the central intelligent control module are calculated as follows: (1) Saturated water vapor pressure a. Normal temperature T≥0℃: b. Low temperature T < 0℃: in, The pressure is saturated water vapor pressure, and T is the air temperature. (The last part, "taken from inside the box," appears to be a typo and can be left as is.) / Outside the box ; (2) Actual water vapor pressure : in, This is the actual water vapor pressure. To measure relative humidity, the measurements were divided into those taken inside the chamber. With the outside of the box ; (3) Dew point temperature inside the chamber : Intermediate comprehensive parameters of dew point formula : Then the dew point temperature inside the chamber can be obtained. : in, The dew point temperature inside the chamber is used to assess the risk of condensation. (4) Absolute humidity : in, Absolute humidity, absolute humidity is measured in separate boxes. , outside the box This is used to compare the total amount of water vapor inside and outside the container. (5) Temperature difference condensation risk : in, The difference between the internal temperature and the dew point is used to determine the value. The rule for determining this is: when the threshold value is reached... At ≤3℃, there is a risk of condensation. (6) Moisture content : in, Moisture content =1013.25 hPa standard atmosphere.

[0015] Preferably, the multimodal dehumidification mode determination criteria of the central intelligent control module are as follows: (1) Pattern A, when the following conditions are met simultaneously: When the outside air is drier and there is no risk of condensation, the system automatically starts the ventilation unit. (2) Mode B: When the condensation sensor signal = 1 or If this indicates that condensation has been detected or the humidity inside the chamber is too high, the system will automatically start semiconductor refrigeration dehumidification. (3) Pattern C, when the following conditions are met simultaneously: If the humidity meets the standard but is close to the dew point, the system will automatically start the 5W PTC heating to raise the temperature to prevent condensation and defrost. (4) Pattern D: When and At ≤3℃, it is an extreme working condition of high humidity and low temperature near dew point. At this time, the condenser and heating units will operate synchronously.

[0016] Compared with existing technologies, this invention provides an intelligent outdoor enclosure dehumidification system based on multimodal synergistic dehumidification, which has the following beneficial effects: 1. This invention achieves the beneficial effects of reducing the absolute humidity inside the chamber from the source, thoroughly dehumidifying without relying on fluctuations in relative humidity by combining the synergistic effect of intelligent ventilation and active condensation, and by using a semiconductor cooling chip to directly condense water vapor in the air into liquid water and discharge it outside the chamber.

[0017] 2. This invention uses a central intelligent control module to make real-time decisions based on internal and external temperature and humidity and condensation signals. It prioritizes the use of low-power ventilation mode and only activates the condensation or heating unit when necessary. At the same time, it introduces a condensation sensor to achieve precise and proactive intervention before or at the beginning of condensation. This results in a significant reduction in overall system energy consumption while improving the real-time performance and reliability of protection.

[0018] 3. This invention, through its built-in multimodal adaptive switching strategy, can automatically select the optimal dehumidification mode according to different climatic conditions such as high temperature and humidity in summer, low temperature and humidity in winter, and alternating dry and wet conditions in spring and autumn. It does not require frequent replacement of consumables such as desiccant, and only requires daily cleaning of the dust filter. It achieves the beneficial effects of strong robustness to complex outdoor environments and extremely low long-term operation and maintenance costs. Attached Figure Description

[0019] Figure 1 This is a system framework diagram of the present invention; Figure 2 This is a flowchart of the system control method of the present invention; Figure 3 This is a schematic diagram of the installation of the system of the present invention inside an outdoor enclosure; The components include: ① temperature and humidity sensor and condensation sensor; ② intake fan; ③ active condensation dehumidification unit, where the cold end of the semiconductor cooling chip is inside the chamber and the hot end is outside the chamber; ④ auxiliary heating unit (PTC heater); ⑤ water collection tank; ⑥ drain pipe; ⑦ exhaust fan; and ⑧ external temperature and humidity sensor. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figures 1-3An intelligent outdoor enclosure dehumidification system based on multimodal collaborative dehumidification is proposed. The system consists of a three-level architecture: an environmental sensing module, a central intelligent control module, and a multimodal dehumidification execution module, forming a closed-loop control link of "acquisition-computation-execution-feedback". The system execution flow is as follows: Step 1: The environmental perception module collects raw data of the internal and external environment of the enclosure through multiple sensors and transmits it to the central intelligent control module (microcontroller) in the form of signal input. Step 2: The central intelligent control module has a built-in thermodynamic calculation formula for humid air, performs real-time calculations on the sensed data, and outputs multiple drive signals in combination with preset judgment thresholds. Step 3: The drive signal is input to the multimodal dehumidification execution module, which selectively activates the condensation, ventilation, heating, and drainage units to carry out dehumidification operations. After the multimodal dehumidification execution module starts running, changes occur in the cabinet environment. The environmental sensing module continuously collects and updates environmental parameters and generates feedback signals. Step 4: The central intelligent control module enables dynamic closed-loop adaptive adjustment.

[0022] By integrating multiple dehumidification mechanisms through the above steps, and having an intelligent controller dynamically select or combine the optimal dehumidification mode based on real-time monitoring of the internal and external environmental parameters, a balance between efficient dehumidification and low power consumption is achieved.

[0023] (1) Environmental data acquisition stage (signal output of environmental sensing module) The environmental sensing module includes three types of sensing elements: an internal temperature and humidity sensor, an external temperature and humidity sensor, and a condensation sensor; the microcontroller triggers a full data acquisition every 30 seconds at a fixed interval. The internal temperature and humidity sensor collects the temperature inside the chamber in real time. Relative humidity inside the box ; External temperature and humidity sensors collect real-time data on the outside temperature of the enclosure. Relative humidity outside the box ; The condensation sensor outputs a switch signal to directly determine whether condensation has occurred on the tank wall; All the above-mentioned raw sensor data are transmitted in parallel to the central intelligent control module (microcontroller) through the signal input channel.

[0024] (2) Parameter calculation and mode decision-making stage of central intelligent control module: The calculation and control process of central intelligent control module: The controller collects temperature, humidity and condensation signals at regular intervals → calculates the saturated water vapor pressure inside and outside the box and the actual water vapor pressure respectively → solves the dew point inside the box, the absolute humidity inside and outside the box and the condensation temperature difference → matches the judgment conditions and outputs the corresponding execution unit drive signal → continuously collects and updates parameters for dynamic adjustment to form a closed-loop intelligent dehumidification control.

[0025] Specifically as follows: After receiving the sensor data, the microcontroller calls the built-in complete set of humidity calculation formulas to complete the numerical calculations in sequence: Substitute the internal and external temperatures and humidity values ​​into the chamber to calculate the saturated vapor pressure inside the chamber. , external saturated water vapor pressure ; Solve for the actual water vapor pressure inside the box. Actual water vapor pressure outside the box ; Calculate the dew point temperature inside the chamber. Further solve the temperature difference that poses a risk of condensation. ; Calculate the absolute humidity inside the chamber Absolute humidity outside the box And to assist in calculating moisture content Verify water vapor load; All calculation results are compared with preset judgment inequalities, and the current optimal working mode (intelligent ventilation / active condensation / auxiliary heating / multimodal collaboration) is automatically matched. Based on the selected operating mode, generate corresponding multi-channel drive output signals.

[0026] (3) Dehumidification actuator drive stage (central control → multi-modal actuator signal input): The central intelligent control module sends the drive signal to the multi-modal dehumidification execution module through multiple signal input channels. The unit drive logic is as follows: The intelligent ventilation unit consists of intake and exhaust fans and a dust and insect screen. Upon receiving the ventilation mode drive signal, it simultaneously starts the intake and exhaust fans to achieve air exchange between the inside and outside of the box. This unit is suitable for spring and autumn when the outdoor humidity is low. When the system determines that the internal humidity is high (≥60%) and the outside air is drier than the inside air, it starts the intake and exhaust fans to exchange air. The active condensation dehumidification unit consists of a semiconductor cooling chip (Peltier effect), heat sink fins, and a fan. It is responsible for receiving the condensation / cooperative mode drive signal, turning on the semiconductor cooling chip for power, and simultaneously turning on the heat sink fins and the matching cooling fan. Water vapor condenses on the surface of the cooling chip. This unit is suitable for high temperature and high humidity environments in summer, where the absolute humidity inside the chamber is high (humidity ≥ 70%) or the humidity outside the chamber is higher than that inside the chamber. The auxiliary heating unit consists of a low-power PTC heater. Upon receiving the heating / cooperative mode drive signal, the low-power PTC heater is activated to raise the overall temperature inside the chamber, eliminate the risk of condensation, and defrost the condenser cooling plate. This unit is mainly used to slightly raise the temperature inside the chamber in low-temperature winter environments to prevent condensation and assist the condenser dehumidification unit in defrosting. Drainage system: The drainage system is triggered synchronously when the condensing unit is running to collect the condensation droplets on the cooling plates and discharge them to the outside of the cabinet to prevent water accumulation and secondary moisture.

[0027] Through intelligent judgment, the system prioritizes the use of low-power ventilation mode and only activates the energy-intensive condensation mode when necessary, resulting in a total system energy consumption that is far lower than that of continuous heating solutions.

[0028] (4) Environmental feedback closed-loop adjustment stage (feedback signal transmission link): After the multimodal dehumidification execution module is started, the temperature, humidity and condensation state inside the cabinet continue to change, forming a feedback signal loop; The environmental sensing module continuously collects the temperature inside the new chamber after dehumidification in real time. Relative humidity inside the box External temperature Relative humidity outside the box Condensation sensor status (The introduction of condensation sensors enables proactive protection by "intervening before condensation risks occur" or "handling condensation as soon as it occurs," which is more accurate and reliable than simply relying on temperature and humidity calculations). The updated sensor data is sent back to the central intelligent control module as a feedback signal; The microcontroller re-executes the full set of parameter calculations, dynamically corrects the dehumidification working mode, and adjusts the start and stop status of each execution unit; The system continuously executes the "collection-calculation-drive-feedback" process, always keeping the humidity and condensation risk inside the box within a safe threshold. When there is no risk of moisture, the system automatically enters a low-power sleep mode.

[0029] The purpose of this invention is to overcome the shortcomings of the prior art and provide a multimodal collaborative dehumidification system that integrates detection, decision-making, and execution, and can intelligently select the best dehumidification strategy according to environmental conditions.

[0030] Example Taking an outdoor protection terminal box as an example: the control module uses a low-power embedded microcontroller (such as the STM32 series); the semiconductor cooling chip is a small device with a power of 15W and a power of 12V, with its cold side facing inward and its hot side equipped with heat sink fins and a fan facing outward; the internal / external temperature and humidity sensor is a general-purpose DHT22 model; the condensation sensor uses a resistive condensation sensor chip; the PTC heater has a power of 5W and is installed at the bottom of the box; the ventilation fan is a DC12V miniature fan.

[0031] Work process: The controller collects data every 30 seconds. During autumn and winter nights, the internal temperature is 10℃, the humidity is 85%, and the calculated dew point is 7.5℃. At this time, the external temperature is 5℃ and the humidity is 95%, with the external absolute humidity being higher than the internal humidity.

[0032] The system does not meet the ventilation requirements: The controller judges that the temperature inside the chamber (10℃) is very close to the dew point (7.5℃), and there is a risk of condensation.

[0033] When there is a risk of condensation, the following measures should be taken in sequence: (1) The system first briefly starts the auxiliary heating unit for 2 minutes to raise the air temperature inside the box to 12°C to eliminate the risk of instantaneous condensation.

[0034] (2) The system restarts the active condensation dehumidification unit and runs for 10 minutes to condense and discharge the water vapor in the air inside the box until the internal humidity drops below 60% and then enters the hibernation state.

[0035] The above measures combine the advantages of ventilation (economical) and condensation (powerful) dehumidification methods, which can directly remove moisture from the air and fundamentally reduce absolute humidity.

[0036] Process and Appendix Figure 1 (System Framework Diagram) Correspondence Summary: Left arrow: Environmental perception module → Signal input → Central intelligent control module (data acquisition uplink); Central arrow: Central intelligent control module → Signal input → Multimodal dehumidification execution module (drive output downlink); Bottom arc arrow: Multimodal dehumidification execution module → Feedback signal → Environmental perception module (closed-loop feedback loop); The central frame serves as the core for computational decision-making, connecting front-end sensing and back-end execution, and achieving fully autonomous intelligent adjustment based on built-in thermodynamic formulas.

[0037] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A smart outdoor enclosure dehumidification system based on multimodal synergistic dehumidification, characterized in that, The system consists of a three-tier architecture: an environmental sensing module, a central intelligent control module, and a multimodal dehumidification execution module. The environmental sensing module collects raw data of the internal and external environment of the box in real time through internal temperature and humidity sensors, external temperature and humidity sensors and condensation sensors, and transmits the collected signals to the central intelligent control module. The central intelligent control module has a built-in thermodynamic calculation formula for humid air. It performs real-time calculations based on the sensing data of internal temperature and humidity, external temperature and humidity, and condensation signals. It also outputs multiple drive signals in combination with preset judgment thresholds to determine and execute the optimal dehumidification mode. The multimodal dehumidification execution module is responsible for receiving the drive signal from the central intelligent control module and selectively activating the built-in unit to perform condensation dehumidification, ventilation, heating to prevent condensation and condensate discharge. After operation, it causes changes in the environmental parameters of the cabinet. These changes are continuously collected by the environmental sensing module and fed back to the central intelligent control module to achieve dynamic closed-loop adaptive adjustment.

2. The intelligent outdoor enclosure dehumidification system based on multimodal synergistic dehumidification according to claim 1, characterized in that, The internal temperature and humidity sensor is built-in: (1) Electronic temperature sensor and electronic humidity sensor, used to collect temperature and humidity values ​​inside the box and monitor the temperature and humidity of the air inside the box; (2) External temperature and humidity sensors: Electronic temperature sensors and electronic humidity sensors are installed in the ventilation area outside the enclosure to collect the temperature and humidity values ​​outside the enclosure to monitor the temperature and humidity of the external environment; (3) Condensation sensor: It is installed directly on the inner wall of the box or near the key electrical components. It has a built-in humidity-sensitive element and outputs a signal directly when water droplets form on the surface to detect whether condensation has occurred.

3. The intelligent outdoor enclosure dehumidification system based on multimodal synergistic dehumidification according to claim 1, characterized in that, The multimodal dehumidification execution module integrates an active condensation dehumidification unit, an intelligent ventilation unit, an auxiliary heating unit, and a drainage system.

4. The intelligent outdoor enclosure dehumidification system based on multimodal synergistic dehumidification according to claim 3, characterized in that, The active condensation dehumidification unit consists of a semiconductor cooling chip, heat dissipation fins, and a fan. Its cold end is used to condense water vapor in the air, converting water vapor into liquid water and discharging it outside the box, when the absolute humidity inside the box is ≥70% or the humidity outside the box is higher than that inside the box.

5. The intelligent outdoor enclosure dehumidification system based on multimodal synergistic dehumidification according to claim 3, characterized in that, The intelligent ventilation unit consists of intake and exhaust fans and a dust and insect screen. When the system determines that the internal humidity is ≥60% and the external air is drier than the internal air, the system automatically starts the intake and exhaust fans to exchange air.

6. The intelligent outdoor enclosure dehumidification system based on multimodal synergistic dehumidification according to claim 3, characterized in that, The auxiliary heating unit consists of a low-power PTC heater, which is used to assist the active condensation dehumidification unit in defrosting under low-temperature conditions.

7. The intelligent outdoor enclosure dehumidification system based on multimodal synergistic dehumidification according to claim 3, characterized in that, The drainage system is used to collect the water generated by the active condensation dehumidification unit and discharge it outside the box through a conduit.

8. The intelligent outdoor enclosure dehumidification system based on multimodal synergistic dehumidification according to claim 1, characterized in that, The central intelligent control module incorporates a humid air thermodynamics algorithm, collecting temperature and humidity data inside the chamber every 30 seconds. , Temperature and humidity outside the box , Based on the condensation sensor signal, the saturated vapor pressure is calculated. Actual water vapor pressure Dew point temperature absolute humidity Condensation temperature difference With moisture content It automatically switches the dehumidification mode based on the calculation results to achieve closed-loop intelligent control.

9. The intelligent outdoor enclosure dehumidification system based on multimodal synergistic dehumidification according to claim 6, characterized in that, The parameters in the central intelligent control module are calculated as follows: (1) Saturated water vapor pressure a. Normal temperature T≥0℃: b. Low temperature T < 0℃: in, The pressure is saturated water vapor pressure, and T is the air temperature. (The last part, "taken from inside the box," appears to be a typo and can be left as is.) / Outside the box ; (2) Actual water vapor pressure : in, This is the actual water vapor pressure. To measure relative humidity, the measurements were divided into those taken inside the chamber. With the outside of the box ; (3) Dew point temperature inside the chamber : Intermediate comprehensive parameters of dew point formula : Then the dew point temperature inside the chamber can be obtained. : in, This is the dew point temperature inside the chamber, used to assess the risk of condensation. (4) Absolute humidity : in, Absolute humidity, absolute humidity is measured in separate boxes. , outside the box This is used to compare the total amount of water vapor inside and outside the container. (5) Temperature difference condensation risk : in, The difference between the internal temperature and the dew point is used to determine the value. The rule for determining this is: when the threshold value is reached... At ≤3℃, there is a risk of condensation. (6) Moisture content : in, Moisture content, =1013.25 hPa standard atmosphere.

10. The intelligent outdoor enclosure dehumidification system based on multimodal synergistic dehumidification according to claim 1, characterized in that, The multimodal dehumidification mode determination criteria of the central intelligent control module are as follows: (1) Pattern A, when the following conditions are met simultaneously: When the outside air is drier and there is no risk of condensation, the system automatically starts the ventilation unit. (2) Mode B: When the condensation sensor signal = 1 or If this indicates that condensation has been detected or the humidity inside the chamber is too high, the system will automatically start semiconductor refrigeration dehumidification. (3) Pattern C, when the following conditions are met simultaneously: If the humidity meets the standard but is close to the dew point, the system will automatically start the 5W PTC heating to raise the temperature to prevent condensation and defrost. (4) Pattern D: When and At ≤3℃, it is an extreme working condition of high humidity and low temperature near dew point. At this time, the condenser and heating units will operate synchronously.

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