Construction tunnel fire detection and alarm device and method thereof

Abstract

The invention relates to the technical field of tunnel safety protection, and particularly discloses a construction tunnel fire detection alarm device and a method thereof.The construction tunnel fire detection alarm device comprises a tunnel, a mounting frame is arranged at the top of the middle of the tunnel, a camera is connected to the bottom of the mounting frame, a temperature detector is connected to the top of the mounting frame, and a rotating ring is connected to one end of the camera; a cleaning assembly is arranged at the top of the rotating ring and swings along the shaft through rotation of the rotating ring. The camera and the temperature detector arranged in the device can be used for monitoring pictures and temperature in the tunnel, then fire spreading, temperature change and personnel existence are distinguished through an AI program to determine the occurrence of a fire, and misinformation caused by spark and temperature rise during welding construction in the tunnel is avoided. The problem that when welding is carried out in a tunnel, due to the occurrence of sparks and temperature rise, alarms of a camera and alarms of a temperature detector are easily triggered, and consequently false alarms are generated is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel safety protection, and in particular to a construction tunnel fire detection and alarm device and method thereof. Background Art

[0002] Tunnel safety protection refers to the measures and devices used to ensure the safety of construction workers in tunnels.

[0003] The occurrence of fire is detected by the camera, and then the personnel are warned through image detection. Warnings are also given through temperature changes. However, this can easily lead to welding construction in the tunnel, because the appearance of sparks will also be recorded by the camera and detected as flames, thereby sounding an alarm. At the same time, the temperature increase during welding will also affect the temperature detection and trigger the alarm, so it is easy to cause false alarms. Summary of the invention

[0004] The purpose of the present invention is to provide a construction tunnel fire detection alarm device and method thereof, which solves the problem that when welding is carried out in the tunnel, the appearance of sparks and the increase in temperature easily trigger the alarm of the camera and the alarm of the temperature detector, thereby generating a false alarm.

[0005] The present invention is achieved through the following technical solutions:

[0006] The present invention provides a construction tunnel fire detection alarm device and method thereof, comprising a tunnel, a mounting frame is arranged at the middle top of the tunnel, a camera is connected to the bottom of the mounting frame, a temperature detector is connected to the top of the mounting frame, one end of the camera is connected to a rotating ring, a cleaning component is arranged on the top of the rotating ring, and the cleaning component swings along the axis through the rotation of the rotating ring.

[0007] Preferably, the camera and the temperature detector are connected to an external control terminal via electrical signals.

[0008] Preferably, the camera includes a transmission motor and a transmission rod, the transmission motor is arranged on one side of the camera, and the transmission rod is connected to one side of the transmission motor.

[0009] Preferably, the transmission rod extends into the interior of the camera, and one end of the transmission rod is provided with a gear meshing with the bottom of the rotating ring.

[0010] Preferably, the cleaning assembly includes a cleaning block, a shrinkage groove, a shrinkage block, an extrusion ball, a deflection shaft, a stop block and an extrusion protrusion, the cleaning block is connected to the top of the rotating ring, the shrinkage groove is arranged on one side of the cleaning block, the shrinkage block is connected to the middle of the shrinkage groove, the extrusion ball is connected to the middle of the shrinkage groove, the deflection shaft is connected to one end of the cleaning block, the stop block is arranged on one side of the camera, and the extrusion protrusion is arranged on one side of the stop block.

[0011] Preferably, the cleaning block is a plurality of arc-bent long strips connected to the top of the rotating ring through a deflection shaft at one end, and the top of the deflection shaft is connected to a groove torsion spring at one end of the cleaning block.

[0012] Preferably, the shrink block is a block connected to the shrink groove by a spring, the extrusion ball contacts the shrink block, and the diameter of the extrusion ball is smaller than the opening of the shrink groove.

[0013] Preferably, the stop block is connected to one side of the camera in an inclined state, the stop block covers the rotating ring, the stop block is close to one end of each cleaning block away from the deflection axis, and the extrusion protrusion is a semicircular protrusion on one side of the stop block.

[0014] Preferably, a brush is provided at the bottom of the cleaning block.

[0015] The technical solution of the present invention has at least the following advantages and beneficial effects:

[0016] 1. The camera and temperature detector installed in the device can monitor the image and temperature in the tunnel, and then use the AI ​​program to distinguish the spread of fire, temperature changes and the presence of people to determine the occurrence of fire, avoiding false alarms due to sparks and increased temperature during welding construction in the tunnel.

[0017] 2. The device is also provided with a cleaning component, through which the camera at a high position in the tunnel can be cleaned automatically. The cleaning block can swing in accordance with the lens through the rotation of the cleaning component, thereby completing the cleaning of the lens.

[0018] 3. The extrusion ball provided in the device can generate a certain vibration when the cleaning block is deflected for cleaning, so as to better clean, and also prevent dust and impurities from adhering to the brush and causing secondary pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 It is a front view structural schematic diagram of the camera of the present invention.

[0021] Figure 3 For the present invention Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0022] Figure 4 It is a schematic diagram of the side cross-sectional structure of the camera of the present invention.

[0023] Figure 5 For the present invention Figure 4 Schematic diagram of the enlarged structure at point B in the middle.

[0024] Figure markings: 1-tunnel, 2-mounting frame, 201-camera, 202-rotating ring, 203-cleaning block, 2031-contraction groove, 2032-contraction block, 2033-extrusion ball, 2034-deflection shaft, 204-block, 2041-extrusion protrusion, 3-temperature detector, 4-transmission motor, 401-transmission rod. DETAILED DESCRIPTION

[0025] Combine the following Figures 1 to 5 The present invention is described in detail.

[0026] A construction tunnel fire detection alarm device and method thereof, comprising a tunnel 1, a mounting frame 2 is arranged at the middle top of the tunnel 1, a camera 201 is connected to the bottom of the mounting frame 2, a temperature detector 3 is connected to the top of the mounting frame 2, one end of the camera 201 is connected to a rotating ring 202, a cleaning component is arranged on the top of the rotating ring 202, the cleaning component is swung along the axis through the rotation of the rotating ring 202, and the camera 201 and the temperature detector 3 are connected to an external control terminal through electrical signals.

[0027] First, the camera 201 is installed on the top of the tunnel 1 through the mounting bracket 2 for monitoring. Then, if a fire occurs in the tunnel and the flame spreads, the camera 201 will detect the spread of the flame through the image of the AI ​​program and record it. Then, when the flame spreads to different objects and causes the temperature to change, the temperature detector 3 will detect it, and then it will also be collected through the control terminal. Finally, the AI ​​program is used to identify whether there are people in the picture through the record of the camera 201. If not, the three elements are met, and then the alarm device is controlled to sound an alarm, thereby avoiding false alarms caused by sparks and increased temperature when construction workers in the tunnel are performing welding work.

[0028] Further, the camera 201 includes a transmission motor 4 and a transmission rod 401, the transmission motor 4 is arranged on one side of the camera 201, the transmission rod 401 is connected to one side of the transmission motor 4, the transmission rod 401 extends into the interior of the camera 201, and one end of the transmission rod 401 is provided with a gear meshing with the bottom of the rotating ring 202, the cleaning assembly includes a cleaning block 203, a contraction groove 2031, a contraction block 2032, an extrusion ball 2033, a deflection shaft 2034, a stop block 204 and an extrusion protrusion 2041, the cleaning block 203 is connected to the top of the rotating ring 202, the contraction groove 203 1 is arranged on one side of the cleaning block 203, the contraction block 2032 is connected to the middle of the contraction groove 2031, the extrusion ball 2033 is connected to the middle of the contraction groove 2031, the deflection shaft 2034 is connected to one end of the cleaning block 203, the stop block 204 is arranged on one side of the camera 201, the extrusion protrusion 2041 is arranged on one side of the stop block 204, the cleaning block 203 is a plurality of arc-bent long strips connected to the top of the rotating ring 202 through a deflection shaft 2034 at one end, the top of the deflection shaft 2034 is connected to the groove torsion spring at one end of the cleaning block 203, and a brush is arranged at the bottom of the cleaning block 203.

[0029] During the operation of the camera 201, the transmission motor 4 is controlled to operate to drive the transmission rod 401 to rotate. When the transmission rod 401 rotates, it engages with the bottom of the rotating ring 202, so that the rotating ring 202 is also driven to rotate. The rotating ring 202 is connected to one side of the camera 201 by a circular protrusion on the side wall, so that it will not separate when rotating.

[0030] When the rotating ring 202 rotates, the cleaning block 203 will also be driven to rotate and move along with the rotating ring 202. When the cleaning block 203 is driven to move, one end will abut against the abutment 204. Through the contact and cooperation between the inclined surface of the abutment 204 and the arc of the cleaning block 203, pressure will be applied to the cleaning block 203, forcing the cleaning block 203 to deflect along the deflection axis 2034 at one end, so that the cleaning block 203 is deflected toward the center of the lens of the camera 201. Then, during the deflection process, the brush at the bottom of the cleaning block 203 will clean the lens. At the same time, several cleaning blocks 203 arranged on the rotating ring 202 can be deflected at the same time to clean the lens conveniently, so as to prevent a large amount of dust and impurities generated during the construction process in the tunnel from adhering to the lens and affecting the image recording of the camera 201.

[0031] Furthermore, the shrinkage block 2032 is a block connected to the shrinkage groove 2031 by a spring, the extrusion ball 2033 is in contact with the shrinkage block 2032, and the diameter of the extrusion ball 2033 is smaller than the opening of the shrinkage groove 2031, the stop block 204 is connected to one side of the camera 201 in an inclined state, the stop block 204 covers the rotating ring 202, the stop block 204 is close to one end of each cleaning block 203 away from the deflection shaft 2034, and the extrusion protrusion 2041 is a semicircular protrusion on one side of the stop block 204.

[0032] At the same time, when the cleaning block 203 is fitted with the abutment block 204 for deflection, the extrusion ball 2033 connected to the contraction groove 2031 will abut against the extrusion protrusion 2041, forcing the cleaning block 203 to move when it is deflected through the abutment between the extrusion ball 2033 and the extrusion protrusion 2041, and then the extrusion protrusion 2041 moves between the two extrusion balls 2033 to vibrate the cleaning block 203, so that the dust is cleaned more effectively, and at the same time, it will not attach to the brush in large quantities, resulting in secondary attachment. At the same time, the rolling of the extrusion ball 2033 can also reduce the friction of the cleaning block 203 fitting the abutment block 204 and then reset through the spring connection of the contraction block 2032.

[0033] The following is a specific implementation process of the present invention. First, the camera 201 is installed on the top of the tunnel 1 through the mounting bracket 2 for monitoring. Then, if a fire occurs in the tunnel and the flame spreads, the camera 201 will detect the spread of the flame through the image of the AI ​​program and record it. Then, when the flame spreads to different objects and causes the temperature to change, the temperature detector 3 will detect it, and then it will also be collected through the control terminal. Finally, the AI ​​program is used to identify whether there are people in the picture through the record of the camera 201. If not, the three elements are met, and then the alarm device is controlled to alarm and remind, so as to avoid false alarms caused by sparks and temperature increases when the construction workers in the tunnel are performing welding work. During the operation of the camera 201, the transmission motor 4 is controlled to operate to drive the transmission rod 401 to rotate. When the transmission rod 401 rotates, it engages with the bottom of the rotating ring 202, so that it drives the rotating ring 2 02 also rotates, and the rotating ring 202 is connected to one side of the camera 201 through the circular protrusion of the side wall, so that it will not separate when rotating. When the rotating ring 202 rotates, it will drive the cleaning block 203 to rotate and move with the rotating ring 202. When the cleaning block 203 is driven to move, one end will abut against the stop block 204, and the contact and cooperation between the inclined surface of the stop block 204 and the arc of the cleaning block 203 will exert pressure on the cleaning block 203, forcing The cleaning block 203 will deflect along the deflection axis 2034 at one end to allow the cleaning block 203 to deflect toward the center of the lens of the camera 201, and then during the deflection process, the brush at the bottom of the cleaning block 203 will clean the lens. At the same time, several cleaning blocks 203 arranged on the rotating ring 202 can deflect at the same time to clean the lens conveniently, thereby preventing a large amount of dust and impurities generated during the construction process in the tunnel from adhering to the lens and affecting the image recording of the camera 201.

Claims

1. A construction tunnel fire detection alarm device, comprising a tunnel (1), wherein a mounting frame (2) is provided at the top of the middle portion of the tunnel (1), characterized in that: The bottom of the mounting frame (2) is connected to a camera (201), the top of the mounting frame (2) is connected to a temperature detector (3), one end of the camera (201) is connected to a rotating ring (202), the top of the rotating ring (202) is provided with a cleaning component, and the cleaning component is swung along the axis through the rotation of the rotating ring (202).

2. A construction tunnel fire detection alarm device according to claim 1, characterized in that the camera (201) and the temperature detector (3) are connected to an external control terminal via electrical signals.

3. A construction tunnel fire detection alarm device according to claim 1, characterized in that the camera (201) includes a transmission motor (4) and a transmission rod (401), the transmission motor (4) is arranged on one side of the camera (201), and the transmission rod (401) is connected to one side of the transmission motor (4).

4. A construction tunnel fire detection alarm device according to claim 3, characterized in that the transmission rod (401) extends into the interior of the camera (201), and one end of the transmission rod (401) is provided with a gear that meshes with the bottom of the rotating ring (202).

5. A construction tunnel fire detection alarm device according to claim 1, characterized in that the cleaning component comprises a cleaning block (203), a contraction groove (2031), a contraction block (2032), an extrusion ball (2033), a deflection shaft (2034), a stop block (204) and an extrusion protrusion (2041), wherein the cleaning block (203) is connected to the top of the rotating ring (202), the contraction groove (2031) is arranged on one side of the cleaning block (203), the contraction block (2032) is connected to the middle of the contraction groove (2031), the extrusion ball (2033) is connected to the middle of the contraction groove (2031), the deflection shaft (2034) is connected to one end of the cleaning block (203), the stop block (204) is arranged on one side of the camera (201), and the extrusion protrusion (2041) is arranged on one side of the stop block (204).

6. A construction tunnel fire detection alarm device according to claim 5, characterized in that the cleaning block (203) is a plurality of arc-bent long strips connected to the top of the rotating ring (202) through a deflection shaft (2034) at one end, and the top of the deflection shaft (2034) is connected to a groove torsion spring at one end of the cleaning block (203).

7. A construction tunnel fire detection alarm device according to claim 5, characterized in that the shrinkage block (2032) is a block connected to the shrinkage groove (2031) by a spring, the extrusion ball (2033) is in contact with the shrinkage block (2032), and the diameter of the extrusion ball (2033) is smaller than the opening of the shrinkage groove (2031).

8. A construction tunnel fire detection alarm device according to claim 5, characterized in that the stop block (204) is connected to one side of the camera (201) in an inclined state, the stop block (204) covers the rotating ring (202), the stop block (204) is close to one end of each cleaning block (203) away from the deflection axis (2034), and the extrusion protrusion (2041) is a semicircular protrusion on one side of the stop block (204).

9. A construction tunnel fire detection alarm device according to claim 5, characterized in that a brush is provided at the bottom of the cleaning block (203).

10. The construction tunnel fire detection and alarm method according to any one of claims 1 to 9, wherein the steps are as follows: The first step is to install a camera (201) in the tunnel for health monitoring. When a fire occurs in the tunnel, the images recorded by the camera (201) will be transmitted to the control terminal for identification through AI. If the fire spreads and expands, one of the factors will be determined; The second step is to detect the temperature change of the flame spreading to various objects by using the temperature detector (3) when a fire occurs in the tunnel, so as to determine the second factor by the change of the flame temperature; In the third step, when the camera (201) records the image, transmits it to the control terminal and then uses AI for identification, it will also identify whether there are people in the image. If not, the third factor is satisfied. By satisfying the three factors, it is determined that there are no people in the tunnel, and an alarm is triggered when a fire occurs, thereby avoiding false alarms caused by high temperature and sparks when construction workers are performing welding construction in the tunnel; In the first and third steps, while the camera (201) is recording, the operation of the transmission motor (4) is controlled to drive the rotating ring (202) to rotate, thereby driving the cleaning component to swing to clean the lens, thereby preventing dust and impurities in the construction environment from adhering to the lens and affecting the recording of the picture and the image recognition of AI.

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