683results about "Humidity control" patented technology

The invention provides a multi-region independent temperature control intelligent frequency conversion refrigeration and preservation method and system, and relates to the technical field of refrigeration and preservation. A region division module, a temperature control module, an environment monitoring module, a data analysis module, an intelligent frequency conversion control module and a user interface module work cooperatively; fine temperature control management of different areas in the refrigeration equipment is realized, the system adopts three-dimensional laser scanning and multispectral image acquisition technologies to automatically divide temperature areas, a quantum-level precision thermistor array and an intelligent fuzzy PID controller ensure accurate temperature control, and meanwhile, humidity and air flow are monitored to optimize a storage environment, so that the temperature control efficiency is improved. The data analysis module is combined with deep learning and an association rule mining algorithm to provide decision support for frequency conversion control and realize energy consumption optimization, the user interface module provides visual operation experience, and the whole scheme improves the intelligence, accuracy and energy efficiency of refrigeration and preservation, and is suitable for various cold chain scenes.

The invention relates to the technical field of humidity compensation, in particular to a humidity gradient compensation method and device for an alternating humidity heat test box. The method comprises the following steps: acquiring test box state monitoring parameters based on a multi-dimensional sensor array; performing spatial humidity gradient distribution analysis on the state monitoring parameters of the test box, performing discrete interpolation fitting, and constructing a three-dimensional humidity gradient trend network; carrying out internal dynamic airflow diffusion analysis on the alternating damp heat test box so as to generate dynamic airflow diffusion data of the test box; carrying out dynamic humidity diffusion path mining on the three-dimensional humidity gradient trend network based on the dynamic airflow diffusion data of the test box, and constructing a dynamic humidity diffusion twin model; acquiring external environment monitoring parameters of the test box; and carrying out environment change association mining on the three-dimensional humidity gradient trend network based on the test box external environment monitoring parameters so as to generate humidity gradient change association data under environment fluctuation. According to the invention, efficient and accurate humidity gradient compensation is realized.

The invention relates to the technical field of drying temperature control, in particular to a temperature self-adaptive control system and method applied to drying of traditional Chinese medicinal materials, and the system comprises a humidity gradient monitoring module, a heat-humidity ratio regulation and control module, an evaporation latent heat calculation module, an energy supply matching module and an air quantity balance optimization module. According to the device, the humidity gradient in the cavity is monitored and analyzed in real time, the humidity condition is accurately adjusted, dynamic humidity control is achieved, the accuracy of the drying process is enhanced, the energy utilization efficiency is optimized through dynamic adjustment of the heat-humidity ratio and cooperation of the water evaporation characteristic, energy consumption is reduced, the influence of water vapor partial pressure is considered for latent heat compensation, and the drying efficiency is improved. The matching degree of heat supply and demand is improved, the drying quality is ensured, energy supply matching and wind field balance optimization are combined with air flow direction data, the regional matching of wind speed and heating power is improved, uniform distribution of a drying medium is ensured, and the overall drying efficiency and uniformity are improved.

The invention relates to the technical field of intelligent irrigation, in particular to an agricultural water-saving irrigation intelligent regulation and control system which comprises a growth stage recognition module, a moisture monitoring module, a meteorological data synchronization module, an irrigation strategy scheduling module and a feedback correction module. According to the method, high-precision identification of crop stage states, improvement of stage judgment accuracy, screening of key growth period blocks, focusing of regulation and control targets, improvement of resource utilization efficiency, layered acquisition and trend comparison of humidity data and construction of a deep and shallow layer dynamic response structure are realized through time sequence analysis of rice key growth parameter amplification; the method comprises the following steps of: enhancing moisture change resolution, synchronously fitting a humidity rhythm and weather prediction, improving regulation and control perspectiveness, eliminating a rainfall interference window, combining with a water demand gear, realizing block precise irrigation, feeding back a regulation and control result through double indexes of humidity and leaf chromatic aberration, constructing set mapping, forming a closed-loop regulation and control mechanism, and enhancing adaptability and execution precision.

The invention discloses a straw drying state monitoring method based on multiple sensors, particularly relates to the field of straw drying state monitoring and control, and aims to solve the problems of low drying efficiency, inconsistent quality and inaccurate control caused by uneven stacking density and poor airflow permeability. A dry bottleneck area is accurately identified; accurately predicting drying parameters of each region by using a regional drying demand model; an intelligent optimization algorithm and real-time feedback control are combined, and dynamic adjustment and accurate matching of the drying process are achieved; by means of the straw drying device, the straw drying efficiency and uniformity are remarkably improved, the problem of insufficient drying or excessive drying caused by density and permeability differences is solved, meanwhile, energy consumption and safety risks in the drying process are effectively reduced, and the consistency of drying quality and the reliability of equipment operation are ensured.

The invention relates to the field of automatic control, in particular to a humidity control method and system for a switch cabinet, and the method comprises the steps: obtaining the temperature values and humidity values of a plurality of time points in the switch cabinet, and calculating the dew point temperature in the switch cabinet based on the temperature value and humidity value of a high-temperature region at the current moment. In consideration of unbalanced temperature distribution in the switch cabinet, whether condensate water is generated in the low-temperature area is mainly considered, and the temperature of the low-temperature area is mainly influenced by the heat transfer effect of the high-temperature area and the environment where the low-temperature area is located. Therefore, the temperature range of the low-temperature region is estimated on the basis of a pre-constructed temperature distribution model, the temperature value of the high-temperature region, and the ambient temperature. And determining whether the temperature of the low-temperature area is lower than the dew point temperature or not through trend analysis and dew point temperature comparison. And if the possibility exists, the water vapor condensation risk is speculated to exist. When water vapor condensation risks exist in the low-temperature area of the switch cabinet, the dehumidification module is controlled to dehumidify the interior of the switch cabinet, and water vapor condensation is avoided.

The invention provides a sterilizer humidification control method, system, equipment and medium, and relates to the technical field of sterilizer control, and the sterilizer humidification control method comprises the following steps: obtaining environmental parameters and equipment data in a sterilizer, inputting the equipment data into a three-dimensional computer design model, and constructing a geometric model; the method comprises the following steps: inputting a geometric model and environmental parameters of the sterilizer by utilizing computational fluid dynamics software, and carrying out numerical simulation treatment to obtain a steam flow form and distribution data in the sterilizer; identifying a cold spot area in the sterilizer through an algorithm, and analyzing the relationship between the cold spot area and the humidification control parameters to obtain an identification result; the humidification amount is dynamically adjusted through a feedback control mechanism, and control parameters are optimized; performance evaluation and adjustment are carried out on the optimized control parameters according to real-time monitoring data and user feedback, and then humidification control over the sterilizer is completed. The quality and the efficiency of the sterilization process are improved, and meanwhile, the energy consumption and the operation cost are reduced.

The invention discloses a citrus orchard interplanting pest and disease prevention and control method, which comprises the following steps: installing a drip irrigation facility in a citrus orchard, and uniformly distributing drippers of the drip irrigation facility between each citrus tree and green manure planting rows; soil humidity sensors are buried in multiple positions of the citrus orchard to monitor soil humidity data in real time through the soil humidity sensors; and determining whether to start the drip irrigation facility based on the soil humidity data acquired by the plurality of soil humidity sensors and the position relationship among the plurality of soil humidity sensors. Therefore, whether the irrigation facility is started or not can be automatically decided by monitoring the soil humidity of different positions in the citrus garden in real time, and the intelligent control mode is beneficial to timely discovering and processing the soil water shortage condition; the problems that in a traditional mode, whether irrigation is carried out or not cannot be judged according to the actual humidity condition of soil, and irrigation hysteresis exists are solved, and then a basis is provided for citrus orchard interplanting pest and disease prevention and control management.

The invention provides an intelligent agricultural system and an agricultural greenhouse humidity intelligent control method. The method comprises the following steps: firstly, acquiring a humidity sampling data sequence in a specified monitoring time window before a current regulation and control period in an agricultural greenhouse, and calculating a humidity change trend index; comparing the humidity change trend index with a dynamic trend threshold value, distributing a weight for each humidity sampling point, and performing weighted fusion based on the weights to obtain a weighted fusion result; and then generating a humidity regulation and control reference value of the current regulation and control period based on the weighted fusion result, the current real-time humidity and the external environment parameters. And finally, the deviation between the target humidity of the crop growth model and the current real-time humidity and the humidity regulation and control reference value are input into a controller to generate a dynamic regulation and control instruction, and operation parameters of a humidity execution mechanism are regulated according to the dynamic regulation and control instruction. According to the scheme, the robustness of accurate regulation and control of the humidity of the agricultural greenhouse can be improved.

The invention provides a surge bin dehumidification system, which relates to the field of intelligent dehumidification and comprises a water tower, a dehumidifier, a cooling water pipe, a humidity sensor and a central control system. The central control system obtains a time queue of real-time humidity values, compares the real-time humidity values with preset expected humidity values, and then carries out segmentation and local time sequence mode coding, so that brake starting judgment of the dehumidifier is achieved according to humidity deviation dynamic causal transmission representation between humidity expected deviation local time sequence mode characteristics. Therefore, the accurate expected humidity value is set, and the time sequence trend and mode of the actual humidity deviation change can be accurately identified, so that an over-sensitive response mechanism is avoided, and the control precision is improved. And meanwhile, misjudgment caused by noise is reduced, so that more efficient, more accurate and more energy-saving humidity control is realized.

The invention relates to the technical field of industrial control, and discloses a real-time dynamic tuning system for a microwave drying process, which is characterized in that temperature distribution, microwave power intensity, humidity gradient and material deformation parameters in a drying cavity are acquired in real time, and time-space alignment and noise suppression are carried out on data of a multi-source sensor based on a Kalman filtering algorithm; generating a drying state matrix, generating a three-dimensional regulation and control instruction containing microwave emission frequency, power partition and drying time according to the drying state matrix by adopting a mixed algorithm of model predictive control and fuzzy logic, and taking the deviation between a final moisture content detection value of the material and a model predictive value as a loss function through an online error back propagation model. The weight coefficient of the microwave-thermal-mass transfer coupling model is dynamically corrected, the microwave energy ratio is optimized based on the improved particle swarm optimization, and the three-dimensional gradient field intensity distribution matched with the material morphology is generated according to the three-dimensional regulation and control instruction, so that the efficiency of the microwave drying process during real-time dynamic regulation and optimization is improved.

The invention provides an electric control cabinet heating and dehumidifying control method, which comprises the following steps: after power-on initialization of an electric control cabinet is completed, acquiring a first temperature value and a power-off time difference in the electric control cabinet, and heating the electric control cabinet and starting control power-on according to the first temperature value and the power-off time difference in the electric control cabinet; acquiring a first humidity value in the electric control cabinet, and dehumidifying the electric control cabinet according to the first humidity value; a second temperature value and a second humidity value in the electric control cabinet are obtained, and if the second temperature value and the second humidity value are both larger than the preset values, the electric control cabinet executes the starting program. According to the invention, the problem of unstable operation of the electric control cabinet in a low-temperature and high-humidity environment in the prior art is solved.

The invention discloses a humidity control method for a gas storage of a large-scale compressed air energy storage power station, and belongs to the technical field of intelligent control of energy storage power stations. The method comprises the following steps: acquiring a power grid dispatching instruction and real-time working condition data of a power station, performing rolling time domain optimization by adopting a pre-configured PCE agent model, and calculating an instantaneous optimal humidity set point; obtaining sparse real measurement data, calculating a prediction error, identifying an equipment degradation stage based on error statistical characteristics, and generating a self-adaptive update weight; based on a PCE coefficient coupling constraint matrix which is constructed offline and contains the law of conservation of thermodynamics, constructing and solving an optimization problem with physical constraints and adaptive weights so as to cooperatively correct coefficients of a PCE proxy model; and issuing and executing the optimal humidity set point. According to the invention, the self-adaption and high fidelity of the control model in the whole life cycle are realized, and the safety and economy of the operation of the energy storage power station are obviously improved.

The invention discloses a method and a device for testing dry and wet wear resistance of a textile. A method and device for testing dry and wet wear resistance of a textile belong to the technical field of material testing, and the method comprises the following steps: adjusting a test environment to a dry state, and recording initial state data of a textile sample; infiltrating the plurality of groups of textile samples to different degrees, and recording initial infiltrating state data of the textile samples; the stress condition in actual use is simulated; respectively performing reciprocating friction of the same operation on the surfaces of the dry textile sample and the wet textile sample, and recording the friction frequency and the abrasion condition; performing data preprocessing on the initial state data, the initial infiltration state data and the test result to obtain preprocessed data; and establishing a mathematical model according to the preprocessed data to analyze the dry-wet wear resistance. By testing the wear resistance in the dry and wet states, the dry and wet properties of the textile product can be measured in multiple aspects, and the problem of incomplete testing in the prior art is solved.

The invention relates to an indoor full-cable power distribution station house dehumidification and condensation prevention method and system, and the method comprises the steps: collecting temperature and humidity data in a power distribution station house, predicting the temperature and humidity change trend in the station house based on a deep learning model, and building a dynamic temperature and humidity change model; establishing a self-adaptive thermal regulation phase change material anti-condensation unit; according to the easily-condensed area information identified in the dynamic temperature and humidity change model and the operation state data of the ventilation system, the phase-change material anti-condensation unit is arranged at the anti-condensation position of the power distribution station house, and an anti-condensation network and corresponding anti-condensation effect data are obtained; according to the dynamic temperature and humidity change model and the anti-condensation effect data, an active anti-condensation guarantee mechanism based on the PTC heating element is established; and a comprehensive control system is established through a multi-objective optimization algorithm, and dehumidification and condensation prevention are carried out on the power distribution station house through the comprehensive control system. Through dynamic temperature and humidity prediction, phase change material anti-condensation and active heating technologies, the energy consumption is reduced, and the anti-condensation effect is improved.

The invention discloses a multi-mode environment coupling regulation and control intelligent shelter and a dynamic goods shelf. The intelligent shelter comprises a shelter body, a dynamic rotary humidification module, a circulating airflow module, a dynamic airflow regulation mechanism and a controller. The dynamic rotary humidifying module is in meshing transmission with a driven wheel through a driving wheel, and rotary nozzles distributed in the circumferential direction are driven to form a global atomization network; a centrifugal fan of the circulating airflow module extracts air in the cabin through a suction pipe, and the air is redistributed through a spiral air outlet of a rotary distributor which is coaxially linked, so that the airflow flowability is enhanced; the dynamic airflow adjusting mechanism controls the movable baffle and the reciprocating lead screw to adjust the air outlet range based on data of the humidity sensor, and the air outlet range is dynamically matched with the humidification rate. And furthermore, efficient operation of the system is realized through coordinated work of all modules in the controller. According to the scheme, the problems of non-uniform humidification, airflow stagnation and regulation and control lag of a traditional square cabin are solved, and the uniformity and stability of a culture environment are remarkably improved.

The invention discloses a power distribution room anti-condensation dehumidification method adopting an optical radiation technology energy-saving dehumidification device, and relates to the technical field of power distribution room dehumidification, and the method comprises the following steps: dividing a power distribution room into a plurality of monitoring areas, installing environment monitoring sensors and intelligent adjustment equipment in the monitoring areas, and configuring a communication gateway; building a local communication network; based on the Internet of Things and node communication technology, a dynamic environment control system fusing a distributed environment monitoring sensor and intelligent adjusting equipment is constructed, environment data and equipment state data of each monitoring area in a power distribution room are monitored and collected in real time, and a digital model containing spatial-temporal characteristics is established; and based on a preset power distribution room dehumidification task standard, comparing the environment data monitored at the current moment, and identifying an abnormal monitoring area. According to the invention, by integrating the optical radiation technology energy-saving dehumidification device and the dynamic environment control system, the cooling and dehumidification effects in the power distribution room are greatly improved, and a more stable and reliable environmental guarantee is provided for power distribution equipment.

The invention provides an electrical cabinet humidity real-time control device and method, and the device comprises an electrical cabinet, and also comprises a controller; the humidity sensor is electrically connected with the controller and is used for detecting the air humidity in the electrical cabinet; the ionic membrane dehumidifier is arranged on the cabinet body wall of the electrical cabinet; the ionic membrane dehumidifier comprises an ionic membrane, a first electrode and a second electrode, and the first electrode and the second electrode are located inside and outside the electrical cabinet respectively; the controller is used for controlling the first electrode and the second electrode of the ionic membrane dehumidifier to be switched between the cathode and the anode. The humidity value in the electrical cabinet can be detected in real time, when the humidity value in the electrical cabinet is not within a set reasonable range, humidification and dehumidification can be achieved by controlling polarity conversion of the two electrodes of the ionic membrane dehumidifier, the humidity in the electrical cabinet is adjusted to be within the set reasonable range, and the electrical cabinet is convenient to use. Therefore, the normal use and the use safety of the electrical cabinet can be effectively ensured, and the service life of the electrical cabinet can be effectively prolonged.

The invention discloses a switchgear control device and method based on an electrolytic dehumidification membrane with a wide working range, which relates to the technical field of moisture-proof dehumidification equipment. The wide working range (−10 to 70° C., 20%-100% RH) is applicable in cold, hot, and other extreme environments, with no icing, frosting, or damage due to supercooling, overheating, and other issues.

The invention relates to an electrical equipment room environment humidity control method and system based on difference comparison. The method comprises the following steps: acquiring original humidity signal data through a humidity sensing array, and performing noise elimination processing to obtain humidity data; calculating a humidity change rate based on the humidity data, comparing the humidity change rate with a preset threshold value, and evaluating the environmental humidity complexity; establishing an equipment humidity demand evaluation model and generating an equipment humidity demand matrix in combination with the physical position, the humidity demand and the environmental humidity complexity of the electrical equipment; based on the matrix, fusing environment state parameters and equipment operation state parameters, and calculating a target comprehensive humidity value by adopting a dynamic weight distribution method; the deviation between the target comprehensive humidity value and the actual humidity data is calculated through a feedback control algorithm, and a humidity control instruction is generated to drive humidity adjusting equipment to execute operation. According to the method, through multi-dimensional parameter fusion and dynamic weight distribution, the accuracy and adaptability of humidity control in a complex environment are improved.

The invention provides an intelligent irrigation method based on a leaf area index and environmental parameters, and the method comprises the steps: calculating a crop coefficient through obtaining the leaf area index of a crop, then measuring the growth environmental parameters of the crop in a breeding shed, and further calculating the transpiration of the crop, and enabling the ratio of the actual water demand of the crop to the transpiration of the crop to be the crop coefficient. The actual water demand of the crops can be obtained through the product of the crop coefficient and the transpiration of the crops, the transpiration of the crops is influenced by factors such as solar radiation, environment temperature and wind speed, and the minimum value and the maximum value of the actual water demand of the crops are obtained through calculation. By comparing the actual irrigation amount with the minimum value of the actual water demand of the crops and comparing the actual soil humidity with the preset soil humidity of the crops, the actual irrigation amount can be controlled to achieve precise irrigation of the crops in different growth periods, and meanwhile the purpose of saving agricultural water is achieved.

The invention relates to the technical field of hydrogen production, and discloses an adjusting method for improving hydrogen humidity of a hydrogen production equipment product, which comprises the following steps: initially setting hydrogen production equipment to obtain basic hydrogen humidity data; on the basis of the basic hydrogen humidity data, optimizing the hydrogen humidity by adjusting parameters of hydrogen production equipment so as to obtain the optimized hydrogen humidity; the hydrogen production equipment is readjusted through the optimized hydrogen humidity, so that the hydrogen humidity is further improved; and recording and analyzing the adjusted hydrogen humidity data to determine whether the required humidity standard is reached or not. The hydrogen humidity of the hydrogen production equipment can be accurately controlled, so that the hydrogen production efficiency and the product quality are improved, and meanwhile, the energy consumption and the cost are reduced.

A method for determining a drying of a food waste disposer contains steps of: saving a comparison table of a pressure temperature of a saturated water vapor in a control unit of the food waste disposer; starting drying process; and calculating. The method further contains a step of judging automatically, after calculating the current target humidity value Ub, the control unit compares the current relative humidity U1 with the current target humidity value Ub and automatically determines a drying status of the food waste disposer and controls a working status of the drying device based on a comparison result.

The invention discloses a storage cabinet with multiple storage chambers, a first storage chamber and a second storage chamber which are separated by a separation part are formed in the storage cabinet, and the storage cabinet is further provided with a humidifying device which comprises the separation part, a first water storage box, a first humidifying fan and a second humidifying fan. The first water storage box, the first humidifying fan and the second humidifying fan are all arranged in the separation part, the first water storage box is provided with a first air outlet facing the first storage chamber and a second air outlet facing the second storage chamber, and the first humidifying fan supplies air to the first water storage box when being started to operate; humidified air in the first water storage box is guided to the first storage chamber through the first air outlet; and the second humidifying fan supplies air to the first water storage box when being started to run, and humidified air in the first water storage box is guided to the second storage chamber through the second air outlet. By the adoption of the humidifying module, humidity adjustment of the multiple storage chambers can be achieved through one humidifying water storage box, and the manufacturing cost of the humidifying module is reduced.

The invention discloses a green and low-carbon constructed wetland thermal insulation system capable of realizing intelligent control. The system comprises a modular wetland unit, a hydroelectric generation module, a thermal insulation heating module, an intelligent control module and an energy storage and standby power supply module, the modularized wetland unit comprises a modularized shell as well as a plant covering layer, a water inlet layer, a wetland bed layer and a water outlet layer which are positioned in the shell and are sequentially arranged from top to bottom; the hydroelectric generation module is mounted on one side of the modularized wetland unit and comprises a water power module shell and a turbine pipeline type hydroelectric generator; electric energy output by the turbine pipeline type hydroelectric generator is supplied to the heat preservation heating module or stored in the energy storage and standby power supply module for standby application; the heat preservation heating module comprises a heat conduction layer arranged at the bottom of the modular shell and located below the water outlet layer, and an electric heating plate located below the heat conduction layer. The intelligent control module is used for analyzing the running state of the wetland in real time and dynamically optimizing the power generation and heating modes. The energy consumption can be reduced, and efficient and stable operation can be achieved.

The invention belongs to the field of dehumidification, and particularly discloses a rotary dehumidifier applied to an outdoor electrical cabinet, which comprises a shell, a dehumidification mechanism, a regeneration mechanism and a controller, the dehumidification mechanism comprises a middle frame arranged in the shell, a containing groove is formed in the middle frame, a dehumidification rotating wheel is movably arranged in the containing groove, and an exhaust fan is arranged between a cover plate at the front end of the dehumidification rotating wheel and the middle frame. The regeneration mechanism comprises a synchronous motor arranged at the input end of the dehumidification rotating wheel, a shell is installed on the portion, on one side of the periphery of the dehumidification rotating wheel, of the middle frame, a heater is arranged in the portion, at the front end of the dehumidification rotating wheel, of the shell, a fan is fixedly installed at an air inlet of the shell through an air duct, and an air outlet pipe is fixedly installed at the rear end of the shell. The rotating wheel dehumidification principle is utilized, moisture in the cabinet body is discharged out, the influence of the environment temperature is small, and the rotating wheel dehumidification cabinet is suitable for being used in outdoor electrical cabinets.

The invention relates to the technical field of detection equipment, in particular to a temperature and humidity regulation and control method and device and computer equipment. The system comprises a box body, a temperature regulation and control assembly and a humidity regulation and control assembly. The method comprises the steps that the temperature in a box and the humidity in the box are obtained, and the temperature difference between the temperature in the box and the preset target temperature and the humidity difference between the humidity in the box and the preset target humidity are determined; formulating a temperature and humidity regulation and control strategy according to the plurality of temperature regulation and control stages in the temperature difference shortening process and the plurality of humidity regulation and control stages in the humidity difference shortening process; the temperature and humidity regulation and control strategy is used for selecting one of regulation and control modes according to a temperature regulation and control stage or a humidity regulation and control stage; the regulation and control modes comprise feed-forward regulation and feedback regulation; controlling a temperature regulation and control assembly and a humidity regulation and control assembly to act according to the temperature and humidity regulation and control strategy; the problem that the control precision is easily reduced due to the influence of external factors can be effectively avoided.

The invention relates to the field of irrigation valve control, in particular to an intelligent valve group for irrigation of hydraulic engineering and a control system. According to the system, firstly, humidity data of different soil depths of an irrigation area where each sprinkling irrigation valve is located at each moment and the valve opening degree of each sprinkling irrigation valve during last irrigation are obtained, and for each irrigation area, the humidity data of different soil depths are divided to obtain an irrigation period of each soil depth; obtaining the moisture demand degree of each soil depth based on the change of the humidity data in each irrigation period of each soil depth, and obtaining the optimal valve opening degree of each irrigation area according to the difference of the moisture demand degrees of the same soil depth between each irrigation area and other irrigation areas and the valve opening degrees of the other irrigation areas. And the crops are irrigated. The opening degree of the sprinkling irrigation valve can be accurately controlled, so that the requirement of current crops for water is met, and the irrigation effect is improved.

The utility model discloses a humidity control device for a high-voltage cabinet of a power distribution room, and belongs to the field of electrical technology. The humidity control device comprises a control circuit arranged in the high-voltage cabinet, a raindrop detection circuit electrically connected with the control circuit and arranged outside the power distribution room, a first humidity detection circuit arranged in the power distribution room and a second humidity detection circuit arranged in a cable trench of the high-voltage cabinet; the control circuit is further electrically connected with an air heating circuit arranged in the high-voltage cabinet, and the control circuit receives humidity or raindrop signals and starts the air heating circuit. The humidity inside and outside the cabinet is detected in real time through the humidity detection sensor, and the air heating circuit is controlled to heat air in the high-voltage cabinet, so that air pressure in the cabinet is higher than that outside the cabinet, moisture outside the cabinet is difficult to enter the cabinet, and due to temperature rise in the cabinet, the dew point temperature in the cabinet can be increased, the problem of dew formation is reduced, and the humidity in the cabinet is reduced. And the insulation effect in the cabinet is improved.

The invention relates to a low-voltage cable branch box convenient for heat dissipation, and belongs to the technical field of cable branch boxes, the low-voltage cable branch box comprises a box body, heat dissipation holes are formed in the box body, a sealing mechanism for sealing the heat dissipation holes is arranged on the box body, a water cooling mechanism is arranged on the box body, and a humidity sensor is arranged on the outer side of the box body; the control unit is configured to control opening and closing of the closing mechanism and start and stop of the water cooling mechanism according to a humidity signal detected by the humidity sensor; when the humidity exceeds a preset threshold value, the sealing mechanism seals the heat dissipation holes, and the water cooling mechanism is started; and when the humidity is within the preset range, the sealing mechanism opens the heat dissipation holes and the water cooling mechanism is closed. By arranging the humidity sensor and the control unit, automatic switching of the heat dissipation mode based on the environment humidity is achieved, and when the environment humidity is normal, the heat dissipation holes are opened for heat dissipation; and when the humidity exceeds a preset threshold value, a water cooling mode is adopted and the heat dissipation holes are closed, moisture invasion is blocked, the use safety of equipment is improved, and the service life of the equipment is prolonged.