246 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 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.

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 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 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 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.

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 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.

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.

The invention relates to the field of building energy conservation, in particular to a control method and system for a flat-urgent combined ventilation air conditioning unit and a storage medium. The control method comprises the steps that the set air supply amount of an air supply outlet of the unit into a room is set, and a particulate matter concentration control target C0 is set; detecting particulate matter concentrations C1 and C2 in real time; if C1 is smaller than or equal to C0, the opening degree of the first air valve and the opening degree of the second air valve are fully closed, and the opening degree of the third air valve and the opening degree of the fourth air valve are fully opened; if C1 is larger than C0, the optimal air valve opening degree combination is solved by taking the minimum total resistance of air flowing through the bypass air duct and the deep filtering air duct as the target, and the air valve opening degree is adjusted to the optimal air valve opening degree; the current air supply amount is detected in real time, and the fan rotating speed is adjusted to the target rotating speed; if C2 is smaller than or equal to C0, the current air valve opening is kept for operation, and otherwise, the steps are repeated till C2 is smaller than or equal to C0. Accurate and stable output of the air supply amount is achieved, it can be guaranteed that the indoor air quality accurately meets the control requirement, and the operation energy consumption of the ventilation and air conditioning system can be remarkably reduced.

Method for controlling a ventilation system (1, 1') allowing smoke from a fire to be evacuated, implementing: A step of closing a contactor (K1); An insulation control step in which a first measuring device (2) measures an image (Id) of a leakage current (If) while at least one phase of a motor (4) of the fan is powered so as to apply a nominal voltage to the at least one phase (U1, U2, U3), and a zero differential voltage of the at least one phase (U1, U2, U3); A step of comparing the image (Id) of the leakage current (If) and a leakage current threshold; A step of controlling the ventilation system (1) Figure 1

The utility model relates to a fireproof ventilating window, and relates to the field of ventilating equipment. The device comprises a frame used for being fixed to a target device, a ventilation opening is formed in the frame, a fireproof plate is movably arranged on the frame, the fireproof plate can control the ventilation opening to be opened and closed through movement, and a control assembly used for controlling the fireproof plate to turn over is arranged on the frame. The fireproof and fire-retardant effects of the ventilation window can be improved.

The invention relates to a subway tunnel hydrogen energy vehicle high-pressure hydrogen leakage monitoring and hydrogen discharging method. The method comprises the steps that hydrogen sensors are arranged on a subway tunnel ceiling at preset intervals; the hydrogen concentration measured by each hydrogen sensor is obtained, and the hydrogen sensor with the hydrogen concentration larger than or equal to a first preset threshold value is marked as a target hydrogen sensor; determining a tunnel where the target hydrogen sensor is located, marking the tunnel as a leakage tunnel, and determining a tunnel type of the leakage tunnel; hydrogen storage pressure of a high-pressure hydrogen storage tank of the hydrogen energy vehicle is obtained, and corresponding ventilation information is obtained in a preset database according to the tunnel type and the hydrogen storage pressure; and based on the obtained ventilation information, the leakage tunnel is controlled to conduct ventilation in the obtained ventilation mode, and the ventilation wind speed is controlled to be the basic wind speed till the hydrogen concentration is reduced to be below a preset safety threshold value. Hydrogen is effectively prevented from being accumulated on the tunnel vault to form explosive mixed cloud, the explosion risk is greatly reduced, and operation safety of the underground space is guaranteed.

The blade angle adjustable ventilation device comprises a ventilation frame, positioning plates are vertically installed on the two sides of the ventilation frame, a supporting plate is fixedly installed on the upper portion of an inner cavity of the ventilation frame, blades are transversely installed below the supporting plate at equal intervals, a supporting shaft is fixedly installed at the center of the top of each blade, and the supporting shaft is fixedly installed on the lower portion of the inner cavity of the ventilation frame. The upper end of the supporting shaft penetrates through the supporting plate and extends to the position above the supporting plate to be fixedly provided with a gear, a gear ring is installed outside the gear in a meshed mode, and an adjusting block is fixedly installed in the middle of the front face of the gear ring. The angle of the blades can be conveniently and quickly adjusted by rotating the adjusting rotating disc, so that the ventilation quantity and the ventilation direction are flexibly controlled according to actual requirements, the practicability and the applicability of the ventilation device are greatly improved, the adjusting rotating disc with the adjusted angle can be locked and fixed through the arrangement of a locking rod and an annular fixing groove, and the practicability is high. The threaded rod is prevented from rotating under the influence of external force, and the ventilation effect stability is ensured.

The invention relates to the technical field of medical instruments, in particular to a hand-operated machine-controlled switching valve device and an anaesthesia machine, and the hand-operated machine-controlled switching valve device comprises a valve seat (1) which is provided with a soda lime tank connector (16), an air outlet connector (2), a machine-controlled ventilation inlet (11), a hand-operated ventilation inlet (12) and a valve port (14); the valve rod (4) is arranged in the valve seat (1); the sealing gasket (10) is installed on the valve rod (4) and used for being in sealing fit with the first valve port side or the second valve port side of the valve port (14) when the valve rod (4) moves to the first position or the second position; and a driving source; under the action of a driving source, the valve rod (4) moves to a first position, so that the sealing gasket (10) closes the manual ventilation inlet (12) and opens the mechanical control ventilation inlet (11); and under the action of a driving source, the valve rod (4) returns to the second position from the first position, so that the sealing gasket (10) closes the mechanical control ventilation inlet (11) and opens the manual ventilation inlet (12), and automatic switching of ventilation channels is achieved.

The invention relates to the technical field of coal mine dust treatment, and particularly discloses an underground construction dust treatment device which comprises a bottom plate, a slope table is transversely arranged on the upper side of the bottom plate, two side shells are arranged at the two ends of the slope table in a sliding mode, two top shells are arranged between the two side shells, two fans are installed at the bottom of one top shell, and the other fan is installed at the bottom of the other top shell. The same ends of the two fans are fixedly connected with one connecting cavity; a movable seat is arranged in the connecting cavity, two filter screen cylinders are symmetrically arranged on the movable seat, the two filter screen cylinders are coaxially aligned with the two draught fans respectively, an air outlet is formed in the middle of the side, away from the two draught fans, of the connecting cavity, a ventilation pipe fitting is arranged at the air outlet in a matched mode, and a control mechanism used for controlling the ventilation pipe fitting is installed at the bottom of the connecting cavity. According to the device, the ventilation pipeline body can be efficiently installed, the working efficiency is high, and the influence on underground production is effectively reduced.

The invention discloses an intelligent bathroom monitoring method, a server and a medium, and relates to the technical field of intelligent homes. The method comprises the following steps: acquiring a user control instruction and real-time environment data; when the user control instruction is to start the ventilation equipment, or the real-time humidity exceeds a preset humidity threshold value, or the harmful gas concentration exceeds a preset threshold value, the ventilation equipment is controlled to operate; when the ventilation equipment conducts ventilation operation, if the real-time harmful gas concentration is within the normal range, the first operation power of the warm air blower is determined; when the warm air blower operates, a first gas flowing track of warm air and the gas temperature and the wind speed of each track point are determined; predicting a second gas flow track of the moisture and the moving speed of each track point, and determining a target air outlet and second operating power of the ventilation equipment in combination with the real-time humidity; and controlling the target air outlet of the ventilation equipment to work according to the second operation power. By implementing the technical scheme, the influence of the operation of the warm air equipment on the moisture emission efficiency of the ventilation equipment is reduced.

The present invention relates to a method for controlling a ventilation system (2), wherein the ventilation system (2) comprises an inlet (4) for receiving inlet air (5), a conditioning section (9) for conditioning the received inlet air (5), an outlet (6) for discharging outlet air (7), and a control device (8). The method comprises the following steps: defining a setpoint window for at least one air parameter of the outlet air (7), preferably by the control device (8); and controlling the conditioning of the inlet air (5) in the conditioning section (9) based on the setpoint window by the control device (8). Furthermore, the present invention relates to a corresponding ventilation system (2) and a system (1) with such a ventilation system (2).

The invention discloses a switching mechanism and an anaesthesia machine. The switching mechanism comprises a supporting frame rotating piece and a switching valve, the switching valve comprises a valve seat and a valve element, and the supporting frame and the valve seat are both suitable for being installed on a main body of the anesthesia machine; a valve cavity is formed in the valve seat, the valve seat is further provided with a first air channel, a second air channel and a third air channel which are arranged at intervals, and the first air channel, the second air channel and the third air channel all communicate with the valve cavity. The rotating piece is rotationally connected to the supporting frame and drives the valve element to be switched from the first position to the second position, and when the valve element is located at the first position, the valve element can temporarily block the second air channel; when the rotating piece drives the valve element to be switched from the first position to the second position, the valve element can relieve blocking of the second air channel and temporarily block the third air channel. The valve element is driven by the rotating piece to be switched between the two positions in the valve seat, convenient switching between mechanical control ventilation and manual ventilation is achieved, and the manufacturing cost of the anesthesia machine is effectively reduced.

The invention discloses a density self-adaptive intelligent ventilation control system and a control method thereof, and relates to the technical field of ventilation and air conditioning. The system comprises a gas monitoring module, a control decision module, an execution adjustment module and a visual interaction module, wherein the gas monitoring module is used for detecting gas density data in a target environment in real time; the control decision module is in communication connection with the gas monitoring module and is used for judging a predefined interval to which the gas density data belongs based on the gas density data and generating a corresponding ventilation control instruction according to the interval; the execution adjustment module is in communication connection with the control decision module and used for controlling ventilation equipment to operate according to the ventilation control instruction; and the visual interaction module is in communication connection with the gas monitoring module and the control decision module, and is used for displaying the system state and supporting manual intervention. Through density self-adaptive intelligent control, precision and dynamic optimization of a ventilation strategy are realized, and the ventilation efficiency, the environmental stability and the energy utilization efficiency are effectively improved.