304 results about "Controlled ventilation" patented technology

The invention relates to the technical field of granary ventilation and energy consumption optimization, in particular to an intelligent granary ventilation and energy consumption optimization decision-making method based on reinforcement learning, and the method comprises the steps: obtaining the internal and external multi-dimensional state data of a granary, respectively constructing a basic state vector, a space correlation feature vector and a grain condition change trend vector based on the multi-dimensional state data inside and outside the granary; combining the basic state vector, the space correlation feature vector and the grain condition change trend vector into a space-time feature tensor, inputting the space-time feature tensor into a space-time topology perception decision model based on a graph attention network, and outputting an optimal composite action vector for controlling ventilation equipment; and analyzing and converting the optimal composite action vector to drive ventilation equipment of the granary to execute control. According to the method, through fusion of space-time topology perception and deep reinforcement learning, accurate prediction and active regulation and control of the granary state are realized, and energy consumption of a ventilation system can be reduced to the greatest extent while grain storage safety is ensured.

The invention relates to the technical field of mine mining, and discloses an underground multi-parameter environment monitoring method, which comprises the following steps of: acquiring equipment pose, vibration spectrum and environment parameters in real time through a multi-source sensor, performing space-time alignment, filtering noise reduction and feature extraction on original data, outputting a standardized state vector, and performing data processing on the standardized state vector; fusing the pose data, the vibration signals and the environmental parameters under a unified space-time reference to construct a multi-dimensional feature matrix; and carrying out dimension reduction and redundant information elimination by adopting principal component analysis, and outputting a fused equipment state vector. According to the method, through real-time fusion of the equipment pose and the airflow dynamic state, the ventilation equipment is cooperatively regulated and controlled, the interference of mechanical vibration on the gas monitoring precision is eliminated and the reliability of gas concentration detection is guaranteed based on coupling modeling of vibration spectrum and pose drift and intelligent compensation of sensor reading errors, and through space correlation analysis and dynamic air volume optimization, the gas concentration detection accuracy is improved. Wind speed sudden drop caused by tramcar passing is actively eliminated, and roadway global continuous monitoring is achieved.

The invention provides a mobile henhouse ventilation regulation and control method and system based on an environment model, and relates to the technical field of intelligent breeding, and the method comprises the steps: obtaining original temperature data, original humidity data, a three-dimensional space wind speed component, an opening geometric distribution data set, and original latitude and longitude coordinate data and time data; calculating a dynamic environment weight coefficient matrix according to the original latitude and longitude coordinate sequence and the time data; generating a self-adaptive heat exchange flow field according to the dynamic environment weight coefficient matrix, the original temperature data and the original humidity data; according to the self-adaptive heat exchange flow field and the trepanning geometric distribution data set, a ventilation compensation amount demand curve is obtained through calculation; generating a ventilation intensity adjusting instruction set according to the ventilation compensation amount demand curve; and according to the ventilation intensity adjusting instruction set, outputting an optimal ventilation control parameter. According to the method, ventilation response self-adaptive accurate matching, airflow dead zone self-suppression and energy consumption-effect dynamic balance under the moving sudden change working condition are achieved.

The invention belongs to the technical field of highway tunnel ventilation control, and provides a highway tunnel ventilation control method and system. The method comprises the following steps of multi-source heterogeneous data acquisition, multi-source data fusion, state estimation, traffic flow prediction, dynamic pollution index calculation and multi-target weight generation, rolling optimization with constraints, control execution, model updating and feedback correction. The state sensing precision is improved through multi-source data fusion, real-time accurate estimation and error reduction of a pollutant concentration field and a traffic flow state are realized through a heterogeneous sensor and a Rayleigh fusion technology, the problem of sensing deviation caused by single data in a traditional method is solved, future traffic flow is predicted based on a graph neural network, and the traffic flow sensing accuracy is improved. The fan power is optimized through model prediction control, the ventilation intensity is adjusted in advance, pollutants are prevented from exceeding the standard, the response speed is increased compared with threshold value control, and energy consumption is reduced.

The invention provides a method and system for controlling ventilation cooling type permafrost subgrade based on energy dynamic balance, wherein the method comprises the steps of constructing a heat absorption predicting model; and inputting an operating condition combination of a permafrost subgrade into the heat absorption predicting model to produce a predicted heat absorption for the permafrost subgrade, and controlling a cooling system to operate based on the predicted heat absorption. The heat absorption predicting model is constructed based on a seed point algorithm of formula matrix, which comprises the steps of producing a known fitting formula; establishing a formula matrix; and calculating a predictive fitting formula corresponding to a new seed point by known seed points in the formula matrix and an index formula, and then calculating the predicted heat absorption based on the predictive fitting formula.

This invention relates to the field of mining technology and discloses a method for multi-parameter environmental monitoring underground. The method includes the following steps: real-time acquisition of equipment pose, vibration spectrum, and environmental parameters through multi-source sensors; spatiotemporal alignment, filtering and noise reduction, and feature extraction of the raw data; outputting a standardized state vector; fusing pose data, vibration signals, and environmental parameters under a unified spatiotemporal reference to construct a multi-dimensional feature matrix; and using principal component analysis to reduce dimensionality and remove redundant information, outputting the fused equipment state vector. This invention achieves real-time fusion of equipment pose and airflow dynamics, collaboratively controlling ventilation equipment. Based on coupled modeling of vibration spectrum and pose drift, it intelligently compensates for sensor reading errors, eliminates the interference of mechanical vibration on gas monitoring accuracy, and ensures the reliability of gas concentration detection. Through spatial correlation analysis and dynamic airflow optimization, it proactively eliminates sudden drops in wind speed caused by mine car passage, achieving continuous monitoring throughout the roadway.

The invention relates to the technical field of tunnel monitoring, and particularly discloses a tunnel monitoring method based on machine vision, which comprises the following steps: S1, dividing sub-periods, acquiring a monitoring image at the starting point of the sub-periods, identifying a target vehicle in the monitoring image, and determining a minimum enclosing rectangle in the monitoring image; calculating a vehicle type score based on the minimum enclosing rectangle, calculating an exhaust emission index, determining a total emission amount in the sub-time period, and if the total emission amount is smaller than a total emission amount threshold value, obtaining a new total emission amount in the next sub-time period; if the total discharge amount is greater than or equal to the total discharge amount threshold value, taking the starting point of the corresponding sub-time period as an adjustment time point; s3, calculating a theoretical distance, determining a target position, and determining a target line; and when the sub-tunnel belongs to any tunnel part, adding 1 to the selection number of the sub-tunnel, determining the total selection number of the single sub-tunnel, and controlling the ventilation system based on the total selection number. The energy consumption of the ventilation system in the tunnel can be reduced.

The invention belongs to the technical field of building ventilation, and particularly discloses an intelligent building ventilation energy-saving system based on AI dynamic adjustment, and the system is characterized in that the system comprises a sensing layer which is used for collecting indoor and outdoor environment parameters in real time; the data transmission layer transmits various data acquired by the sensing layer to a central control system in real time through an Internet of Things communication technology, and is provided with a data caching mechanism; the central control system comprises a data processing module and is used for preprocessing the received data; the AI analysis module is used for establishing an indoor air quality prediction model, a personnel activity mode prediction model and a ventilation system energy consumption model by applying a machine learning algorithm; the control decision module generates an optimal ventilation control strategy; and the execution layer comprises a fresh air fan and an exhaust fan which adopt a frequency conversion technology, and an air supply outlet and an exhaust outlet which are provided with electric air valves, and further comprises a function of receiving a control instruction of the central control system and controlling ventilation equipment in real time.

The invention relates to the technical field of ventilation control, in particular to a ventilation control method and system for an intelligent ventilation cabinet, a medium and a product, and the method comprises the steps: obtaining a monitoring environment parameter of a to-be-controlled ventilation cabinet in a current monitoring time period, and carrying out the control of the ventilation cabinet based on the monitoring environment parameter and a preset strategy mapping relation; determining an initial ventilation strategy of the to-be-controlled ventilation cabinet in the current monitoring time period; based on the monitored environment parameters, determining historical maintenance time periods corresponding to the monitored environment parameters from historical ventilation records; determining an observation time period, an observation adjustment parameter and an observation adjustment value corresponding to the observation adjustment parameter based on the historical maintenance time period and the monitoring environment parameter, and generating a target ventilation strategy based on the observation time period, the observation adjustment parameter, the observation adjustment value corresponding to the observation adjustment parameter and the initial ventilation strategy; and performing ventilation control on the to-be-controlled ventilation cabinet in the current monitoring time period and the observation time period based on the target ventilation strategy. The timeliness and accuracy in the ventilation control process can be improved conveniently.

The utility model discloses a composite cabin ventilation system meeting dynamic positioning redundancy requirements, which comprises an exhaust shutter, an air inlet shutter and a fan which are positioned in an upper cabin, a structural air duct positioned in a middle cabin and a diesel generator set positioned in a lower cabin, and the air inlet shutter, the fan, the structural air duct and a cavity of the lower cabin are sequentially communicated. The cavity of the lower-layer cabin is communicated to an exhaust shutter through a chimney; and an air brake for controlling the ventilation quantity is arranged between the fan and the structural air duct. According to the utility model, a water cooling mode is utilized to completely replace the heat dissipation air volume of a main part during the design of a conventional cabin ventilation system, and the discharge capacity of a ventilation fan and the size of an air duct are reduced. The internal circulation cooling jet fan does not need to be started, normal operation of the ship can be guaranteed through the frequency conversion fans with the small number and power, and energy conservation and emission reduction are achieved. All the frequency conversion fans and the internal circulation cooling jet fans can work at the same time, the use requirements of tropical areas under extremely hot working conditions are met, and the working condition adaptability of ships is improved.

The invention provides an underground coal mine ventilation control method and device, electronic equipment and a storage medium, and belongs to the technical field of mine ventilation. The method comprises the steps that the type and concentration characteristics of harmful gas in a target area are determined according to data collected by a biosensor array; determining time sequence data of the harmful gas according to the concentration of the harmful gas, and determining a target concentration change rate of the harmful gas according to the time sequence data; according to the concentration of the harmful gas, the target concentration change rate and the current underground acoustic wave characteristics of the coal mine, the target air volume of the target area is determined; according to the target air volume of the target area, the ventilation resistance of the target area and the current opening degree of the ventilation valve, the opening degree of the ventilation valve is controlled, and the ventilation air volume is determined. According to the coal mine underground ventilation control method and device, the electronic equipment and the storage medium, the ventilation quantity can be accurately and timely adjusted.

The invention relates to the field of operating room ventilation, in particular to a ventilation and purification control system based on an intelligent operating room, and aims to solve the problem that a ventilation system running at constant power cannot cope with a complex and changeable dust and bacterium environment, so that the ventilation and purification efficiency is inappropriate. Comprising an air volume management and control unit, a purification rate management and control unit, a ventilation task management unit, a ventilation environment acquisition unit, a purification environment supervision unit and a purification equipment supervision unit. According to the invention, intelligent analysis is carried out according to the dust environment in the operating room and the idle time of the operating room, so that the purification work of the operating room does not influence the normal use of the operating room, the microbial environment in the operating room is monitored, and the operation of the sterilization equipment is intelligently controlled according to the microbial monitoring result; quantitative analysis is carried out according to the dust environment and the microbial environment, air volume control is achieved, the air volume can meet the rapid ventilation requirement of the dust environment, and the ventilation speed can be controlled to guarantee the sterilization effect.

The invention discloses an energy-saving type ventilation curtain wall and a construction method thereof. The ventilation curtain wall comprises a frame, a mounting piece, an inner-layer curtain wall body, an outer-layer curtain wall body, a shutter, a first meshing piece, a second meshing piece, a driven wheel, a driven piece, a multi-class sensor, a flow guide piece, a ventilation opening, an adjusting piece, a linear driving assembly and a purification assembly. A main control chip is arranged on the outer side of the inner-layer curtain wall; a flow guide piece on the inner side of a frame guides airflow; a ventilation opening and an adjusting piece are matched to control the ventilation quantity; a purification assembly purifies air; the construction method comprises the steps of S1, preparation before construction, S2, base layer treatment, S3, installation of the frame and the inner-layer curtain wall, S4, installation of the outer-layer curtain wall and the flow guide part, S5, installation of the power mechanism, S6, installation of the sensor and the purification assembly and S7, system debugging. Excessive exchange of indoor and outdoor heat can be reduced, energy consumption is reduced, the system adapts to different climates, construction is easy and convenient, and efficiency is high.

The utility model belongs to the technical field of drying equipment, and particularly relates to a ventilation structure of a multifunctional dryer. An upper air pipe is arranged at the top of an inner cavity of the shell, a lower air pipe is arranged at the bottom of the inner cavity of the shell, an air outlet of the fan is connected with the upper air pipe and the lower air pipe through a three-way pipe, the three-way pipe comprises an upper air pipe, a lower air pipe and an air inlet pipe, the upper air pipe is connected with the upper air pipe, the lower air pipe is connected with the lower air pipe, and the air inlet pipe is connected with the air outlet of the fan. The upper air pipe and the lower air pipe are provided with gate assemblies for controlling ventilation of the upper air pipe and the upper air pipe and ventilation of the lower air pipe and the lower air pipe respectively, and the side walls of the upper air pipe and the lower air pipe are provided with a plurality of ventilation openings for ventilation towards an inner cavity of the shell in the length direction of the upper air pipe and the lower air pipe. The drying device can guide hot air flow and is good in drying effect.

The invention provides a control method for linkage equipment matched with a generator set, the linkage equipment comprises generator sets, signal modules, a cooling circulating water system and a ventilation system, and each generator set is in signal connection with the cooling circulating water system and the ventilation system through the signal modules; the cooling circulating water system comprises a cooling water pump control box and a plurality of groups of cooling water pumps, and each generator set outputs a group of starting or stopping signals to the cooling water pump control box through a signal module; after the generator set is started, the cooling water pump control box determines the corresponding number of water pumps which are put into operation according to the group number of starting signals output by the generator set; after the generator set is shut down, the cooling water pump control box determines that the corresponding number of water pumps are shut down according to the group number of the shut-down signals output by the generator set; the generator set outputs starting or stopping signals to the ventilation system through the signal module, and the ventilation system is controlled to start ventilation or stop ventilation. The overall operation efficiency of the generator set is improved.

The invention relates to novel ventilation and air exchange equipment which comprises a ventilation and air exchange module used for achieving circulation and exchange of indoor and outdoor air and energy recovery. The natural energy recovery module is used for collecting natural energy in the natural environment and converting the natural energy into electric energy; the energy management module is connected with the natural energy recovery module and an external power grid, is used for coordinating distribution of renewable energy and power supply of the power grid to supply energy to equipment, and is provided with an energy storage unit for storing redundant electric energy generated by the natural energy recovery module; the AI dynamic air volume adjusting module is used for predicting the predicted air demand reference quantity in the future 30 minutes by analyzing historical environment data and real-time personnel distribution, and calibrating the predicted air demand reference quantity regularly in the execution process; and the intelligent control module is in communication connection with the user intelligent wearable device, collects real-time body data of the user and generates a personalized air supply strategy to control the ventilation module to supply air. The ventilation system has the low-energy-consumption and high-comfort ventilation effect.

The invention discloses an intelligent monitoring ventilation control method and system, an electronic device and a storage medium, and the control comprises the steps: obtaining detection data of at least two types of sensors, the different types of sensors being used for detecting different environmental data in a scene, and the detection data of the different types of sensors corresponding to different standard exceeding thresholds; judging whether at least one item of the detection data exceeds the corresponding standard exceeding threshold value or not; if yes, increasing the power of the ventilation system. According to the technical scheme provided by the invention, the technical problems that a ventilation system in the prior art cannot accurately control the power of the ventilation system and cannot timely ventilate the environment can be solved.

A ventilation hood includes a main frame which faces an appliance accessible from a front of the appliance, the main frame defining a through-hole passing through the main frame, a motor module on the main frame and configured to suck in air through the through-hole, the motor module including a duct, a motor having an axis, and an exhaust fan driven by the motor and defining a blowing direction perpendicular to the axis of the motor, and a controller configured to control operation of the ventilation hood and a rotation velocity of the exhaust fan. The axis of the motor is in a direction from the front of the appliance to a rear of the appliance which is opposite to the front. The controller is on the main frame and at a front of the duct which corresponds to the front of the appliance.

The invention relates to a method for controlling a ventilation device (2), the ventilation device (2) having an inlet (4) for receiving an inlet air (5), a regulating section (9) for regulating the received inlet air (5), an outlet (6) for discharging an outlet air (7), and a control device (8). The method comprises the following steps: determining a setpoint window for at least one air parameter of the outlet air (7), preferably by means of the control device (8); the control device (8) controls the adjustment of the inlet air (5) in the adjustment section (9) on the basis of the setpoint window. The invention also relates to a ventilation device (2) and a device (1) with a ventilation device (2).

The utility model belongs to the technical field of medical first-aid equipment, and discloses a full-automatic breathing balloon pressing device which comprises a breathing balloon body and a support, the breathing balloon body comprises a balloon, one end of the balloon is connected with a connecting pipe communicated with an inner cavity of the balloon, and the inner wall of the connecting pipe is connected with a pressure sensor and a flow meter respectively. According to the scheme, manual operation is replaced with the automatic pressing structure, and the problems that a traditional breathing balloon is unstable in pressing frequency, uneven in force, fatigue and the like are solved; a pressure sensor and a flow meter are combined to realize real-time monitoring and intelligent regulation and control, so that the ventilation pressure and the tidal volume are effectively controlled, and the safety is improved; the adjustable fixing assembly adapts to various balloon sizes, and stable pressing is ensured; the common and advanced modes adapt to different treatment requirements and are widely applied to pre-hospital first aid and intensive care, and the respiratory support efficiency and reliability are remarkably improved.

Method for controlling a ventilation system, ventilation system, and associated ventilation installation. This method for controlling a ventilation system includes a remote control and a ventilation grille, which includes battery-powered receiving means. Cyclically, the ventilation grille switches between a sleep phase (ΔTs), during which the receiving means are off, and a wake-up phase (ΔTr), during which the receiving means are on and ready to receive a control signal sent by the remote control. The control method also includes actuation of the remote control by a user, so as to send a control signal for a transmission time (ΔTt) that is longer than the sleep time (ΔTs). Figure for the abstract: Figure 2

1. The name of the design product: pipe valve (DN250). 2. The use of the design product: for controlling the opening and closing of the ventilation pipe of toxic gas. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1.

The present invention provides a temperature control device and method for a low-voltage switch cabinet, including a cabinet body. An installation groove is formed inside the cabinet body. A plurality of strip-shaped openings for ventilation are equally spaced and formed on both side walls of the cabinet body. Two baffles for closing the plurality of strip-shaped openings are symmetrically arranged inside the installation groove. A driving mechanism for driving the two baffles to move is arranged inside the cabinet body. A ventilation opening is formed at the bottom of the cabinet body. A ventilation mechanism is arranged inside the ventilation opening. A first sliding cavity is further formed inside the cabinet body. An elastic mechanism that cooperates with the driving mechanism and is used to control the start of the ventilation mechanism is arranged inside the first sliding cavity. A filter plate is further installed inside the ventilation opening. The present invention can ensure that the upper and lower ends of the two baffles are located on the same vertical section to ensure stability during the movement process, and can also blow external air into the inside of the installation groove to complete ventilation inside the installation groove.

The objective of the present invention is to provide a ventilation system, a ventilation method and a program capable of sufficiently reducing the concentration of a chemical substance in a room while suppressing ventilation in consideration of adsorptive building materials.　A ventilation system (10) includes a ventilation facility (20) for ventilating a room (40), an adsorptive building material (41) installed in the room (40) to adsorb a chemical substance, a chemical substance concentration sensor (52) installed in the room (40) to detect the concentration of the chemical substance, and a control device (21), in which the control device (21) includes: a required ventilation amount calculating means for calculating an amount of ventilation required to suppress the concentration of the chemical substance to or below a predetermined reference concentration, on the basis of a concentration detected by the chemical substance concentration sensor (52); a corresponding ventilation amount calculating means for calculating a corresponding ventilation amount that is a ventilation amount corresponding to an effect of reducing the concentration of the chemical substance by means of the adsorptive building material (41); and a control means for controlling the operation of the ventilation facility (20) on the basis of the amount of ventilation required and the corresponding ventilation amount.

The disclosure provides a method of operating a (HVAC) system. The method includes measuring a concentration of a gas in the target space, and determining that the concentration exceeds a gas concentration threshold. The method includes determining that operation of the HVAC system in a ventilation mode is indicated to reduce the concentration of the gas. The method includes determining a total capacity of the HVAC system, and determining a current capacity of the HVAC system. The method includes causing the HVAC system to operate in the ventilation mode after validating that the total capacity is greater than the current capacity during operation of the HVAC system in the ventilation mode.

A humidity control system comprising: an air conditioning duct (10) through which air can flow from a vehicle interior or from a vehicle exterior; a ventilation fan (20) arranged in the air conditioning duct (10), the ventilation fan (20) being capable of adjusting a flow rate of air flowing through the air conditioning duct; and a humidity control device (30) comprising: a honeycomb structure (31) with an outer perimeter wall (32) and partitions (35) arranged on an inner surface of the outer perimeter wall (32), the partitions (35) defining a plurality of cells (34), each of the cells (34) extending from a first end surface (33a) to a second end surface (33b) to form a flow path for the air; and a moisture-absorbing layer (36) formed on each surface of the partitions (35).wherein the humidity control device (30) is arranged in the air conditioning duct on a downstream side of the ventilation blower (20). On a downstream side of the humidity control device (30), the air conditioning duct (10) branches into a first flow path (11), which allows air to flow into the vehicle interior, and a second flow path (12), which allows air to flow to an exterior of the vehicle. The first flow path (11) is provided with a first valve (51) capable of adjusting the amount of air flowing through it. The second flow path (12) is provided with a second valve (52) capable of adjusting the amount of air flowing through it. The vehicle humidity control system further comprises a control unit (40) for controlling the ventilation blower (20), the first valve (51), and the second valve (52).

Disclosed is a personal sauna booth. A personal sauna booth according to one aspect of the present invention may comprise: a fixed frame having an inner space; a movable frame movably installed on the fixed frame so that the inner space is expanded; a ventilation fan for generating fluid flow so that a fluid filled in the inner space is discharged to the outside; and a controller for controlling the operation of the ventilation fan, wherein the controller can control so that the ventilation fan operates after a sauna session ends.

The invention relates to the technical field of curtain wall ventilation, and discloses a double-layer energy-saving curtain wall ventilation structure which comprises an upper wall body and a lower wall body, connecting pieces are installed on the upper wall body and the lower wall body, and an outer curtain wall and an inner curtain wall are installed on the connecting pieces; a flowing air cavity is formed between the inner curtain wall and the outer curtain wall; the upper wall body and the lower wall body are further provided with air pipe assemblies used for air inflow. According to the double-layer energy-saving curtain wall ventilation structure, active flow pushing can be conducted on air between the inner curtain wall and the outer curtain wall through the arranged ventilation assembly, rapid replacement of airflow is achieved, active operation of the ventilation assembly can be controlled in the hot time period in summer to achieve airflow pushing, rapid flowing of the internal airflow is guaranteed, and the ventilation effect is improved. Cooling of the double-layer curtain wall is achieved, the service life of the curtain wall is prolonged, and meanwhile the indoor environment temperature is reduced.

This invention discloses a method, apparatus, equipment, and medium for controlling a tunnel ventilation fan based on tunnel environment monitoring, relating to the field of automated energy-saving control technology. The method includes: acquiring a vehicle model image set and vehicle images and spectral imaging images of vehicles entering the tunnel, wherein the vehicle model image set includes sample images of several different vehicle models; identifying the vehicle model; using the spectral imaging image of each vehicle as input, monitoring exhaust emissions according to the vehicle model using a vehicle exhaust emission model, obtaining exhaust emission monitoring values, and controlling the operating state of the tunnel ventilation fan based on the exhaust emission monitoring values. This solves the problems of existing ventilation methods for long-distance tunnels, which cannot be individually controlled according to the tunnel environment, resulting in high energy consumption and high maintenance and operating costs.