RU240434U1 - Automatic window roller shutters with methane and formaldehyde sensors - Google Patents

Abstract

This utility model relates to protective devices installed outside a building over window openings, more specifically, to automatic window roller shutters with methane and formaldehyde sensors, which can be used to monitor methane and formaldehyde concentrations and automatically control the position of the roller shutters. The technical result—improved gas safety through an automatic response to exceeding threshold methane and formaldehyde concentrations—is achieved by automatic window roller shutters with methane and formaldehyde sensors, which comprise a frame, a flexible slatted web with sealing elements, web guides secured to the sides of the frame, a crossbar connecting the free ends of the guides, sealing elements for the guides, sealing elements at the lower and upper edges of the web adjacent to the frame surface and crossbar in the closed position, and an electromechanical drive mechanism for moving the web. Pairs of sensors, mounted within the housing of the shutter box, comprise external and internal methane and formaldehyde sensors, the sensing elements of which are located on the outer surfaces of the shutter box: one on the side facing the outside of the room to measure gas concentrations outside the room, and the other on the window side to measure gas concentrations in the space between the window and the roller shutters. A controller, mounted within the shutter box, is electrically connected to the shutter drive mechanism and is capable of analyzing the measured concentrations of the external and internal gas sensors and controlling the opening and closing of the roller shutters. Furthermore, the roller shutters comprise a wireless communications module, mounted within the shutter box, electrically connected to the controller and designed for remote monitoring, shutter control, and modification of methane and formaldehyde concentration thresholds, as well as setting a priority response to exceeding the concentrations of these gases. 1 Fig.

Description

Field of technology

This utility model relates to protective devices installed outside a building over window openings, specifically to automatic roller shutters with methane and formaldehyde sensors. The utility model can be used to monitor methane and formaldehyde concentrations and automatically control the position of the roller shutters.

State of the art

A prior art system and method for connecting to a CCTV camera, a signal lamp, and a speaker for controlling roller shutters at metro stations is described in KR 20200093476 A, dated August 5, 2020. The system comprises a 3D client connected to a 3D server, a database, a video storage server, and a roller shutter interface device. The system provides visualization on a 3D map of the station and control of raising/lowering the roller shutters, simultaneously activating a signal lamp and a speaker that broadcasts a voice message. Connection to CCTV cameras is also possible, displaying a video stream near the controlled roller shutters. This technical solution enables centralized management of metro station engineering systems, providing visual and audio control of the roller shutters. However, this solution does not include automatic air monitoring and does not provide for adjustment of the roller shutter position depending on the content of hazardous gases, in particular methane and formaldehyde, in the air. As a result, it is not possible to maintain the concentration of hazardous gases at a safe level, which limits the use of such systems in situations where it is necessary to protect people from toxic emissions and ensure sanitary and hygienic conditions in the premises.

Fire-resistant roller shutters, described in CN 203925223 U, November 5, 2014, also exist in the prior art. These shutters comprise a roller shutter frame and curtain equipped with smoke and heat sensors, as well as a cavity containing a water spray system connected to the water supply. When the smoke sensor is triggered, water sprays through openings in the curtain surface, and when a predetermined temperature is reached, the water supply is automatically stopped. This solution enables automatic fire suppression and protects people near the roller shutters from exposure to open flames. Despite its fire safety advantages, this technical solution is not designed for continuous monitoring and automatic regulation of toxic gas levels, particularly methane and formaldehyde. The lack of functions to control the position of the roller shutter curtain based on the concentration of harmful substances in the air precludes its use for ensuring gas safety in premises.

Disclosure of a utility model

Thus, the objective of the utility model is to eliminate the shortcomings of the prior art, and the technical result of the utility model is to create automatic window roller shutters that provide increased gas safety due to an automatic response to exceeding the threshold concentrations of methane and formaldehyde.

The mentioned technical result is achieved by automatic window roller shutters with methane and formaldehyde sensors, which contain

roller shutter box,

a flexible fabric consisting of interconnected slats and secured in a box with the ability to move between folded and unfolded positions,

sealing elements between the slats that prevent the penetration of outside air and ensure the tightness of the canvas,

guides fixed to the sides of the box and designed for the directed movement of the canvas,

a crossbar connecting the free ends of the guides,

sealing elements of the guides, made of elastic sealing material and ensuring the adhesion of the web to the guides in the closed position to prevent the penetration of outside air,

sealing elements of the lower and upper edges of the web, made of elastic sealing material and ensuring the adhesion of the web to the surface of the box and the crossbar in the closed position to prevent the penetration of outside air, an electromechanical drive mechanism for moving the web, located inside the box and designed with the ability to automatically roll up and roll up the web,

external and internal methane sensors fixed in the box body, the sensitive elements of which are brought out to the outer surfaces of the box, one on the side facing the outside of the room, for measuring the concentration of methane outside the room, and the other on the window side, for measuring the concentration of methane in the space between the window and the roller shutters, while the sensors are electrically connected via wire channels inside the box to the controller,

external and internal formaldehyde sensors fixed in the box body, the sensitive elements of which are brought out to the outer surfaces of the box, one on the side facing the outside of the room, for measuring the concentration of formaldehyde outside the room, and the other on the window side, for measuring the concentration of formaldehyde in the space between the window and the roller shutters, while the sensors are electrically connected via wire channels inside the box to the controller,

a controller mounted inside the box, electrically connected via a wire channel inside the box to the drive mechanism for moving the web.

The controller is designed with the ability to analyze the measured concentrations of methane and formaldehyde by external and internal sensors and control

closing the roller shutters upon detection of an excess of the threshold level of concentration of at least one of the gases outside the premises,

opening of roller shutters upon detection of an excess of the threshold concentration level of at least one of the gases on the window side of the room,

when the concentration of any of the gases is simultaneously exceeded both on the window side in the room and outside - by comparing the concentration levels and controlling the curtain in such a way that the roller shutters open if the concentration of this gas on the window side in the room exceeds or is equal to the external concentration, and close if the concentration of this gas outside exceeds the concentration on the window side in the room,

When the concentration threshold for one of the gases in the space between the window and the roller shutters and for another gas outside the room is simultaneously exceeded, the controller controls the position of the curtain based on the readings of the internal and external sensors corresponding to the gas for which the highest priority is set.

In addition, the roller shutters contain a wireless communication module, fixed inside the box, electrically connected via a wired channel inside the box to the controller and designed for remote monitoring, control of the curtain and changing the threshold levels of methane and formaldehyde concentration, as well as setting a priority order of response to exceeding the concentrations of these gases.

It should be noted that this design ensures comprehensive gas safety in relation to the concentration of harmful gases, taking into account the concentrations both outside the room and on the window side of the room, accordingly controlling the position of the roller shutter panel.

Additionally, it should be noted that the wireless communication module allows for remote monitoring and configuration of operating parameters, as well as remote control via a mobile application or other remote control interface.

Brief description of the drawings

The utility model is illustrated by a figure, which schematically illustrates automatic window roller shutters with methane and formaldehyde sensors.

Implementation of a utility model

As shown schematically in Figure 1, automatic window roller shutters with methane and formaldehyde sensors comprise a box (1) containing all the main functional components, a flexible curtain (2) consisting of interconnected slats and secured in the box (1) with the ability to move between the rolled-up and unrolled positions, sealing elements (3) between the slats ensuring the tightness of the curtain, guides (4) located on the sides of the box (1) and designed for the directed movement of the curtain (2), a crossbar (5) connecting the free ends of the guides. The box (1), slats, guides (4) and crossbar can be made of aluminum, steel, plastic, including transparent.

Sealing elements of the guides (6), made of elastic sealing material and ensuring the adhesion of the web to the guides (4), sealing elements (7) of the upper and lower edges of the web, ensuring the adhesion of the web (2) to the surface of the box (1) and the crossbar. Sealing elements (3, 6 and 7) are made of elastic sealing material, such as foamed plastic or silicone.

The electromechanical drive mechanism (8), located inside the box (1), contains an electric motor, a gearbox, and a clutch, and is designed for automatic folding and unfolding of the web (2); in addition, it may have a current sensor for determining extreme positions.

External (9) and internal (10) methane sensors, external (11) and internal (12) formaldehyde sensors, for example electrochemical ones, fixed in the body of the box (1), the sensitive elements of which, in particular, the ends with gas-collecting slots, are brought out respectively from the outside (from the side opposite to the window) and from the window side.

The controller (13), containing at least a processor and memory, is placed inside the box (1), electrically connected to the methane and formaldehyde sensors (9-12), the drive mechanism (8) and the wireless communication module (14).

Wireless communication module (14), such as GSM, Wi-Fi, Bluetooth, provides remote control and monitoring.

Automatic window roller shutters work as follows.

Initially, the canvas (2) can be in either an open (rolled) or closed (unrolled) position.

External sensors (9, 11) measure methane and formaldehyde concentrations in the outside air, while internal sensors (10, 12) measure the concentrations in the space between the window opening and the roller shutters. The resulting data is transmitted via a wired channel to the controller (13).

The controller (12) analyzes the incoming data and controls the drive mechanism (7), ensuring automatic unfolding or folding of the web (2) depending on the current conditions.

When the concentration of at least one gas outside the room exceeds a threshold, the controller (13) sends a signal to the drive (8), which deploys the curtain (2), ensuring its complete closure. Sealing elements (3, 6, and 7) between the slats, along the guides, and at the edges of the curtain ensure a hermetic seal, preventing contaminated air from entering the room.

If the concentration threshold of at least one gas on the window side is exceeded, the controller (13) sends a command to open the panel (2) to facilitate ventilation and reduce the concentration of harmful gas by diluting it with fresh air.

If an excess concentration of any gas is detected simultaneously both outside and in the space between the window and the roller shutters, the controller (13) compares the values:

if the internal concentration is equal to or higher than the external one, the canvas (2) automatically opens (or remains in the same position if it was open),

if the external concentration is higher, the canvas closes (or remains in the same position if it was closed).

When the threshold concentration level for any of the gases on the window side is simultaneously exceeded and the threshold concentration level for another gas on the outside is exceeded, the controller (13) controls the folding of the curtain based on the readings of the internal and external sensors corresponding to the gas for which the highest priority is set.

This ensures that the least harmful option for the interaction of air masses is selected.

To improve the device's stability during minor fluctuations in gas concentration and prevent frequent changes in the web position, the controller can use software data filtering and hysteresis. This means that the web position can only be changed when threshold values are consistently exceeded for a specified period of time or when a preset additional threshold (hysteresis) is exceeded. This approach ensures system stability and prevents it from being triggered by random or short-term spikes in gas concentration.

The controlled space between the window opening and the panel (2) is a buffer zone that maintains a safe gas concentration regardless of the window's position (open or closed). This space is critically important, as it serves as the first line of defense against the penetration of harmful substances into the room.

If the window is open and any of the external sensors (9, 11) detects a harmful gas concentration exceeding the permissible level, the controller (13) initiates the closing of the window panel (2). This immediately creates a hermetic barrier, preventing contaminated air from entering the room, despite the open window.

If the window is closed and the external concentration of any of the gases exceeds the threshold value, the panel (2) also moves to the closed position, forming an additional protective circuit and enhancing the tightness of the system.

If the concentration of any gas within the buffer space formed between the window opening and the curtain (2) is detected to exceed the specified level, and the window remains open, the controller (13) commands the curtain to retract. This facilitates ventilation of the room through natural air exchange with the surrounding environment.

If the window is closed and any of the internal sensors (10, 12) detects an elevated gas concentration (while the outside air remains relatively clean), the system also initiates the opening of the panel (2), providing ventilation of the buffer space between the window and the roller shutters. This helps dilute the contaminated air and prepares the room for possible ventilation after opening the window.

Similarly, controller (13) makes a decision about rolling up or rolling up the curtain (2) when an excess concentration of any gas is detected both outside and in the buffer zone. In such situations, a comparative analysis of the values is performed: if the concentration inside the buffer zone is higher than or equal to the outside concentration, curtain (2) opens or remains open to facilitate dilution of the polluted air. If the outside concentration is higher, curtain (2) closes or remains closed, preventing the entry of more polluted air. If the concentration threshold for any gas in the buffer zone and another gas outside is simultaneously exceeded, controller (13) controls the curtain based on readings from the internal and external sensors, corresponding to the gas with the highest priority.

The device's operation can be monitored and controlled remotely using a wireless communication module (14) linked to the controller (13). This module can also be used to set gas concentration thresholds, at which the position of the web (2) is automatically adjusted. This module also allows for setting gas concentration thresholds, above which the controller decides to adjust the web's position, and for setting a priority response to exceeded concentrations of these gases. Setting a priority response avoids conflicts and establishes a strict controller response when the concentration of one gas is simultaneously exceeded inside the buffer space and the other outside.

This ensures an automatic response to changes in the air composition, creating a hermetic barrier when necessary and facilitating ventilation in the event of internal contamination. This maintains a safe level of hazardous gases in the space in front of the window, without requiring constant user intervention and improving the overall gas safety of the premises.

Claims (17)

Automatic window roller shutters with methane and formaldehyde sensors contain roller shutter box, a flexible fabric consisting of interconnected slats and secured in a box with the ability to move between folded and unfolded positions, sealing elements between the slats that prevent the penetration of outside air and ensure the tightness of the canvas, guides fixed to the sides of the box and designed for the directed movement of the canvas, a crossbar connecting the free ends of the guides, sealing elements of the guides, made of elastic sealing material and ensuring the adhesion of the web to the guides in the closed position to prevent the penetration of outside air, sealing elements of the lower and upper edges of the canvas, made of elastic sealing material and ensuring the adhesion of the canvas to the surface of the box and crossbar in the closed position to prevent the penetration of outside air, an electromechanical drive mechanism for moving the web, located inside the box and designed with the ability to automatically roll up and roll up the web, external and internal methane sensors fixed in the box body, the sensitive elements of which are brought out to the outer surfaces of the box, one on the side facing the outside of the room, for measuring the concentration of methane outside the room, and the other on the window side, for measuring the concentration of methane in the space between the window and the roller shutters, while the sensors are electrically connected via wire channels inside the box to the controller, external and internal formaldehyde sensors fixed in the box body, the sensitive elements of which are brought out to the outer surfaces of the box, one on the side facing the outside of the room, for measuring the concentration of formaldehyde outside the room, and the other on the window side, for measuring the concentration of formaldehyde in the space between the window and the roller shutters, while the sensors are electrically connected via wire channels inside the box to the controller, a controller mounted inside the box, electrically connected via a wire channel inside the box to the drive mechanism for moving the web and designed with the ability to analyze the methane and formaldehyde concentrations measured by external and internal sensors and control closing the roller shutters when it is detected that at least one of the gases outside the room has exceeded the threshold level, opening of roller shutters upon detection of an excess of the threshold level of at least one of the gases on the window side of the room, and if the concentration of any of the gases on the window side in the room and outside is simultaneously exceeded, by comparing the concentration levels and controlling the shutters in such a way that the roller shutters open if the concentration on the window side in the room exceeds or is equal to the outside concentration, and close if the outside concentration exceeds the concentration on the window side in the room, when the threshold concentration level is simultaneously exceeded for one of the gases on the window side in the room and for another gas outside, the controller controls the position of the canvas based on the readings of the internal and external sensors corresponding to the gas for which the highest priority is set, a wireless communication module, mounted inside the box, electrically connected via a wired channel inside the box to the controller and designed for remote monitoring, control of the web and changing the threshold levels of methane and formaldehyde concentrations, as well as setting the priority order of response to exceeding the concentrations of these gases.