A device and method for visualizing fire smoke information monitoring in a building

Abstract

The present invention discloses a device and method for visualizing fire smoke information monitoring in a building, which includes a smoke monitoring rod, which is arranged vertically and horizontally on the side wall of a corridor. The smoke monitoring rod includes a rotating seat, a rotating regulator and a laser detection rod. The rotating seat is embedded and fixed in a top plate, and an installation shell is connected and installed between the upper and lower rotating seats. The two ends of the laser detection rod are respectively rotatably assembled with the upper and lower rotating seats, and the rotating regulator is installed in the upper rotating seat for regulating the rotational movement of the laser detection rod.

Description

Technical Field

[0001] The present invention relates to the field of fire fighting technology, and in particular to a device and method for visually monitoring fire smoke information in a building. Background Art

[0002] Smoke detection typically uses sensors to monitor smoke concentration for fire prevention. However, these sensors are only suitable for detecting smoke reaching alarm concentrations indoors or at close range. For medium- and long-range detection, one approach uses multispectral methods to detect specific smoke spectra, while another uses medium-wave infrared (MWIR) to detect the wavelengths in which smoke is present. However, these methods can only detect the presence of smoke, not its spread within the fire scene, making it difficult to provide safe and effective information for evacuation and firefighting.

[0003] Therefore, those skilled in the art provide a device and method for visually monitoring fire smoke information in a building to solve the problems raised in the above background technology. Summary of the Invention

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a device for visualizing fire smoke information in a building, comprising a smoke monitoring rod, which is arranged vertically and horizontally on the side wall of the corridor, and the smoke monitoring rod comprises a rotating seat, a rotating regulator and a laser detection rod, the rotating seat is embedded and fixed in the top plate, and an installation shell is connected and installed between the upper and lower rotating seats, the two ends of the laser detection rod are respectively rotatably assembled with the upper and lower rotating seats, and the rotating regulator is installed in the upper rotating seat for regulating the rotation movement of the laser detection rod.

[0005] Furthermore, a cylindrical cavity with a strip-shaped detection port is provided in the installation shell, and a cleaning strip that is in close contact with the outer wall of the laser detection rod is provided at the edge end of the strip-shaped detection port.

[0006] Furthermore, the laser detection rod includes a cylindrical shell, a laser detection strip bundle is embedded in the outer wall of the cylindrical shell, sealing disks are sealed at both ends of the cylindrical shell, an inlet gate is opened on the shell wall of the cylindrical shell, a discharge arc is provided on the shell wall of the cylindrical shell near the side of the top plate, and an exhaust pump is provided in the cylindrical shell cavity near the bottom of the discharge arc, and a smoke concentration monitor is provided in the cylindrical shell cavity.

[0007] Furthermore, four groups of laser detection heads are evenly distributed on the laser detection beam.

[0008] Furthermore, a camera for collecting images is provided between adjacent laser detection heads.

[0009] Furthermore, the inlet grilles are provided in multiple groups along the inner cavity of the column shell from bottom to top, and a smoke concentration monitor is arranged in the inner cavity of the column shell above each group of the inlet grilles.

[0010] Furthermore, the plurality of groups of inlet gates are arranged in a spiral staggered manner from bottom to top.

[0011] A method for visually monitoring fire smoke information in a building, comprising:

[0012] S100: A smoke monitoring model is formed by establishing X-axis coordinates according to the transverse direction of the corridor, Z-axis coordinates according to the number of floors in the corridor, and Y-axis coordinates according to the width of the corridor. All smoke monitoring rods installed on the side walls of the corridor are recorded in the plane of the XZ axes in the smoke monitoring model.

[0013] S101: Obtaining the position information of the laser detection head for detecting and sensing smoke and feeding it back to the smoke monitoring model for recording and marking;

[0014] S102: Obtain the smoke range image and location information captured by the camera and feed it back to the smoke monitoring model for recording and marking;

[0015] S103: Whenever the laser detection head for detecting and sensing smoke and the camera for capturing and capturing smoke images complete a recording mark, the controller is rotated to drive the laser detection rod to rotate. Simultaneously, the exhaust pump extracts gas from the inner cavity of the column shell, allowing smoke in the corridor to flow into the inner cavity through the inlet grille. The smoke concentration of the smoke flowing in through the inlet grille is monitored by a smoke concentration monitor, and then discharged through the discharge arc port. The monitoring value of the smoke concentration monitor is recorded.

[0016] S104: filling the smoke range image captured by the smoke density monitor at the corresponding position with color gamuts of different shades according to the size of the area monitoring value.

[0017] Furthermore, the rotation controller regulates the rotation of the laser detection rod by intermittent drive, and the intermittent drive angle is set to the arc center angle of the inlet gate.

[0018] Compared with the existing technology, the present invention provides a device and method for visualizing fire smoke information monitoring in buildings, which has the following beneficial effects:

[0019] 1. In the present invention, on the basis of ensuring safety, the installation and layout are embedded in the side wall of the corridor to avoid affecting the needs of wall decoration, etc., and it has good self-protection safety, thereby improving its normal operation rate in a fire environment. At the same time, it also avoids the positive opposition to the high-temperature smoke, thereby reducing the smoke dust adhering to the surface of the smoke monitoring rod, affecting the normal monitoring of the smoke monitoring rod, and causing large errors in the monitoring data. In particular, it can reduce the serious data errors caused by the smoke dust adhering to the surface of the smoke monitoring rod.

[0020] 2. In the present invention, when the laser detection rod is driven to rotate by rotating the controller, the outer surface of the laser detection rod can be cleaned by the cleaning strip to ensure the normal operation of the laser detection rod. Moreover, it makes the cleaning of the smoke detection rod more convenient. In particular, when a fire occurs, the smoke dust attached to the outer surface of the laser detection rod can be removed in time, thereby greatly improving the accuracy of smoke shooting, improving the effectiveness of smoke monitoring information data, and making the smoke monitoring model obtained for smoke spread simulation more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of the smoke monitoring rod of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the smoke monitoring rod of the present invention;

[0023] Figure 3 It is a schematic diagram of the column shell structure of the present invention;

[0024] Figure 4 This is a flow chart of visual monitoring of fire smoke information in a building according to the present invention;

[0025] Figure 5 This is a schematic front view of a visualization monitoring simulation of fire smoke information in a building according to the present invention;

[0026] In the figure: 1. Corridor side wall; 2. Ceiling; 3. Smoke monitoring rod; 31. Rotating controller; 32. Rotating seat; 33. Mounting shell; 34. Cleaning strip; 35. Laser detection rod; 331. Cylindrical cavity; 351. Cylindrical shell; 352. Laser detection strip bundle; 353. Sealing disk; 354. Smoke concentration monitor; 355. Exhaust pump; 3511. Inlet gate; 3512. Discharge arc; 3521. Laser detection head; 3522. Camera. DETAILED DESCRIPTION

[0027] Reference Figure 1-5The present invention provides a technical solution: a visual monitoring device for fire smoke information in a building, which includes a smoke monitoring rod 3, which is arranged vertically and horizontally on the corridor side wall 1, and the smoke monitoring rod 3 includes a rotating seat 32, a rotating regulator 31 and a laser detection rod 35. The rotating seat 32 is embedded and fixed in the top plate 2, and a mounting shell 33 is connected and installed between the upper and lower rotating seats 32. The two ends of the laser detection rod 35 are respectively rotatably assembled with the upper and lower rotating seats 32, and the rotating regulator 31 is installed in the upper rotating seat 32 for regulating the rotation movement of the laser detection rod 35. In this structure, on the basis of ensuring safety, it is installed and laid out by being embedded in the side wall of the corridor, avoiding affecting the requirements of wall decoration, etc., and has good self-protection safety, thereby improving its normal operation rate in a fire environment. At the same time, it also avoids the positive opposition to the high-temperature smoke, thereby reducing the smoke dust adhering to the surface of the smoke monitoring rod, affecting the normal monitoring of the smoke monitoring rod, and causing large errors in the monitoring data, especially when the smoke dust adheres to the surface of the smoke monitoring rod, causing serious data errors, and as a preferred embodiment, the horizontal spacing distance of the smoke monitoring rod is set in the range of 1-2 meters.

[0028] In this embodiment, a cylindrical cavity 331 with a strip-shaped detection port is provided in the mounting shell 33, and a cleaning strip 34 that is in close contact with the outer wall of the laser detection rod 35 is provided at the edge end of the strip-shaped detection port near the strip-shaped detection port. Specifically, when the laser detection rod is driven to rotate by rotating the controller, the outer surface of the laser detection rod can be cleaned by the cleaning strip to ensure the normal operation of the laser detection rod. Moreover, it makes the cleaning of the smoke monitoring rod more convenient, and especially when a fire occurs, the smoke dust attached to the outer surface of the laser detection rod can be removed in time, thereby greatly improving the accuracy of smoke shooting, improving the effectiveness of the smoke monitoring information data, and making the smoke monitoring model of the smoke spread simulation more accurate.

[0029] In this embodiment, the laser detection rod 35 includes a cylindrical shell 351, the outer shell wall of the cylindrical shell 351 is embedded with a laser detection beam 352, the two ends of the cylindrical shell 351 are sealed with sealing disks 353, the cylindrical shell 351 is provided with an inlet gate 3511 on the shell wall, the cylindrical shell 351 is provided with a discharge arc 3512 on the shell wall of the cylindrical shell 351 near the side of the top plate 2, and the cylindrical shell 351 near the bottom of the discharge arc 3512 is provided with an exhaust pump 355, and the cylindrical shell 351 is provided with an exhaust pump 355 in the cylindrical cavity. A smoke concentration monitor 354 is provided; four groups of laser detection heads 3521 are equidistantly distributed on the laser detection beam 352; a camera 3522 for collecting images is provided between adjacent laser detection heads 3512; multiple groups of inlet gates 3511 are provided along the inner cylinder cavity of the cylindrical shell 351 from bottom to top, and a smoke concentration monitor 354 is provided above each group of inlet gates 3511 in the inner cylinder cavity of the cylindrical shell 351; and multiple groups of inlet gates 3511 are arranged in a spiral staggered arrangement from bottom to top;

[0030] Specifically, the arc angle of the laser detection beam is set to 90°, the arc center angle of the inlet gate is set to 40°, and a group of inlet gates are set between the laser detection head and the camera. Figure 2 、 Figure 3 As shown, the left end in the accompanying drawings is set as the lower end and the right end is set as the upper end. When the rotary regulator drives the column shell to rotate, multiple groups of inlet gates arranged from bottom to top will pass through the strip detection port in sequence and when passing through the strip detection port, there is only one group of inlet gates located in the strip detection port area, thereby improving the smoke concentration monitor's monitoring accuracy of the smoke, and further making the upper and lower layer concentration difference of the monitoring simulation more accurate, which is beneficial to improving the visualization accuracy of the smoke monitoring model obtained for the smoke spread simulation.

[0031] When implemented specifically, it includes:

[0032] S100: A smoke monitoring model is formed by establishing X-axis coordinates based on the corridor's transverse direction, Z-axis coordinates based on the number of floors in the corridor, and Y-axis coordinates based on the corridor's width. All smoke monitoring rods installed on the corridor's side walls are recorded in the X-axis and Z-axis planes of the smoke monitoring model to simulate a visual smoke spread model. This allows real-time monitoring of smoke spread and distribution in the corridors and floors during firefighting, making firefighting more efficient and safer.

[0033] S101: Obtaining the position information of the laser detection head for detecting and sensing smoke and feeding it back to the smoke monitoring model for recording and marking;

[0034] S102: Obtain the smoke range image and location information captured by the camera and feed it back to the smoke monitoring model for recording and marking;

[0035] S103: Whenever the laser detection head for detecting and sensing smoke and the camera for capturing and capturing smoke images complete a recording mark, the controller is rotated to drive the laser detection rod to rotate. Simultaneously, the exhaust pump extracts gas from the inner cavity of the column shell, allowing smoke in the corridor to flow into the inner cavity through the inlet grille. The smoke concentration of the smoke flowing in through the inlet grille is monitored by a smoke concentration monitor, and then discharged through the discharge arc port. The monitoring value of the smoke concentration monitor is recorded.

[0036] S104: filling the smoke range image captured by the smoke density monitor at the corresponding position with color gamuts of different shades according to the size of the area monitoring value.

[0037] In this embodiment, the rotation controller regulates the rotation of the laser detection rod by intermittent driving, and the intermittent driving angle is set as the arc center angle of the inlet gate.

[0038] The above description is only a preferred specific embodiment of the invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A visual monitoring device for fire smoke information in a building, comprising a smoke monitoring rod (3), characterized in that: The smoke monitoring rod (3) is arranged vertically and horizontally on the corridor side wall (1), and the smoke monitoring rod (3) includes a rotating seat (32), a rotating regulator (31) and a laser detection rod (35). The rotating seat (32) is embedded and fixed in the top plate (2), and a mounting shell (33) is connected and installed between the upper and lower rotating seats (32). The two ends of the laser detection rod (35) are respectively rotatably assembled with the upper and lower rotating seats (32), and the rotating regulator (31) is installed in the upper rotating seat (32) for regulating the rotation movement of the laser detection rod (35); The laser detection rod (35) includes a cylindrical shell (351), the outer shell wall of the cylindrical shell (351) is embedded with a laser detection beam (352), both ends of the cylindrical shell (351) are sealed with sealing disks (353), an inlet gate (3511) is opened on the cylindrical shell wall of the cylindrical shell (351), a discharge arc port (3512) is provided on the cylindrical shell wall of the cylindrical shell (351) near the side of the top plate (2), and an exhaust pump (355) is provided in the cylindrical cavity of the cylindrical shell (351) below the discharge arc port (3512), and a smoke concentration monitor (354) is provided in the cylindrical cavity of the cylindrical shell (351); Four groups of laser detection heads (3521) are evenly distributed on the laser detection beam (352); A camera (3522) for collecting images is provided between adjacent laser detection heads (3521); The inlet gates (3511) are provided in multiple groups along the inner cavity of the column shell (351) from bottom to top, and a smoke concentration monitor (354) is provided in the inner cavity of the column shell (351) above each group of the inlet gates (3511).

2. A visual monitoring device for fire smoke information in a building according to claim 1, characterized in that: A cylindrical cavity (331) with a strip-shaped detection opening is provided in the mounting housing (33), and a cleaning strip (34) is provided at the edge of the strip-shaped detection opening close to the outer wall of the laser detection rod (35).

3. The visual monitoring device for fire smoke information in a building according to claim 1, characterized in that: Furthermore, the plurality of groups of inlet gate ports (3511) are arranged in a spiral staggered manner from bottom to top.

4. A method for visualizing fire smoke information monitoring in a building, using a visualizing fire smoke information monitoring device in a building according to any one of claims 1 to 3, characterized in that: include: S100: A smoke monitoring model is formed by establishing X-axis coordinates according to the transverse direction of the corridor, Z-axis coordinates according to the number of floors in the corridor, and Y-axis coordinates according to the width of the corridor. All smoke monitoring rods installed on the side walls of the corridor are recorded in the plane of the XZ axes in the smoke monitoring model. S101: Obtaining the position information of the laser detection head for detecting and sensing smoke and feeding it back to the smoke monitoring model for recording and marking; S102: Obtain the smoke range image and location information captured by the camera and feed it back to the smoke monitoring model for recording and marking; S103: Whenever the laser detection head for detecting and sensing smoke and the camera for capturing and capturing smoke images complete a recording mark, the controller is rotated to drive the laser detection rod to rotate. Simultaneously, the exhaust pump extracts gas from the inner cavity of the column shell, allowing the smoke in the corridor to flow into the inner cavity through the inlet grille. The smoke concentration of the smoke flowing in through the inlet grille is monitored by a smoke concentration monitor, and then discharged through the discharge arc port. The monitoring value of the smoke concentration monitor is recorded. S104: filling the smoke range image captured by the smoke density monitor at the corresponding position with color gamuts of different shades according to the size of the area monitoring value.

5. A method for visualizing fire smoke information monitoring in a building according to claim 4, characterized in that: The rotation controller regulates the rotation of the laser detection rod by intermittent driving, and the intermittent driving rotation angle is set as the arc center angle of the inlet gate.

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