Variable focus visual detector for fire fighting

Abstract

The utility model discloses a special variable focus visual detection instrument of fire control, including visual detection instrument's shell body and back shell, the inside of shell body is provided with control circuit board, and control circuit board is connected with the camera component for gathering fire scene inside image through conductive connection band, and camera component includes the visible light camera head and thermal imaging camera head of setting in back shell side, is located visible light camera head and is provided with the zoom module for adjusting focal length, and zoom module includes focusing motor, and the output of focusing motor is connected with the lens group of visible light camera head through transmission part, to make focusing motor drive the lens group of visible light camera head along optical axis through transmission part, and the focal length of visible light camera head is adjusted. The utility model discloses through setting zoom module, can according to actual detection demand, adjusts the focal length of visible light camera head.

Description

Technical Field

[0001] This utility model relates to a fire-fighting-specific variable-focus visual detection instrument. Background Technology

[0002] In the field of fire protection, fire scene detection is of paramount importance for ensuring the safety of firefighters and improving the efficiency of fire fighting and rescue.

[0003] Traditional fire detection equipment can only provide limited visible light image acquisition capabilities. In harsh environments such as dense smoke and darkness, the image clarity is poor, making it difficult to accurately determine key information such as the location of the fire source, the direction of fire spread, and the location of trapped personnel.

[0004] In addition, many devices lack effective zoom capabilities, making it impossible to flexibly observe the details of distant fire sources or close-up burning materials. Firefighters often need to get closer to the fire source to obtain clearer images, which undoubtedly increases the operational risks.

[0005] Therefore, a variable-focus visual detection instrument for fire protection is proposed. Utility Model Content

[0006] The purpose of this invention is to provide a fire-fighting-specific variable-focus visual detection device to solve the problem mentioned in the background art that traditional fire detection equipment lacks effective zoom function and cannot flexibly observe fire scene images.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a fire-fighting-specific variable-focus visual detection device, comprising an outer shell and a back shell. A control circuit board is disposed inside the outer shell. The control circuit board is connected via a conductive connecting strip to a camera assembly for acquiring images of the interior of a fire scene. The camera assembly includes a visible light camera and a thermal imaging camera disposed on the side of the back shell. A zoom module for adjusting the focal length is provided at the visible light camera. The zoom module includes a focusing motor. The output end of the focusing motor is connected to the lens group of the visible light camera through a transmission component, so that the focusing motor drives the lens group of the visible light camera to move along the optical axis through the transmission component, thereby adjusting the focal length of the visible light camera (the focusing motor driving the lens to move through the transmission component is existing technology and will not be described in detail).

[0008] Preferably, the visible light camera and the thermal imaging camera are snapped together between the outer shell and the back shell via a back cover.

[0009] Preferably, a display screen is provided on the outer casing, and operation buttons are provided at the bottom of the display screen to enable firefighters to interact with the detection device through the display screen.

[0010] Preferably, the control circuit board includes a controller and a power supply, and the visible light camera, thermal imaging camera, focusing motor, display screen and power supply are all connected to the controller.

[0011] Preferably, an inner liner is provided on the inner wall side of the back shell, and two sets of connecting grooves are provided at the inner liner. Ribs are provided on the outer periphery of the two sets of connecting grooves. The enclosing area of ​​the ribs cooperates with the visible light camera and the thermal imaging camera respectively, so that the visible light camera and the thermal imaging camera are snapped to the inner liner side by the ribs.

[0012] Preferably, both the back shell and the inner liner shell are provided with through holes to cooperate with the visible light camera and the thermal imaging camera, so that the visible light camera and the thermal imaging camera can collect images of the interior of the fire scene through the through holes.

[0013] Preferably, a bolt channel is provided on the side of the inner liner shell away from the back shell, so that the bolts are connected to the outer shell shell in sequence through the back shell, the inner liner shell, and the outer shell shell.

[0014] Compared with the prior art, the beneficial effects of this utility model are: This invention integrates a visible light camera and a thermal imaging camera. The visible light camera can clearly capture the fire environment in well-lit areas, while the thermal imaging camera can penetrate obstacles such as dense smoke and darkness to accurately locate the fire source, detect the distribution of heat sources, and find trapped personnel. This provides firefighters with more comprehensive and accurate fire information and makes up for the shortcomings of traditional single-camera detection equipment in complex fire environments.

[0015] By incorporating a zoom module and utilizing a focusing motor to drive the lens assembly of the visible light camera, precise focal length adjustment is achieved. The focal length of the visible light camera can be adjusted according to actual detection needs, enabling both long-distance observation of the overall fire situation and close-up examination of burning details. This effectively reduces the risks for firefighters approaching the fire source, overcomes the limited zoom capabilities of traditional equipment, and expands the application range of the equipment in complex fire scene detection. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the back side structure of an embodiment of the present utility model; Figure 3 This is a schematic diagram of the camera component structure according to an embodiment of the present utility model; Figure 4 This is a first-view schematic diagram of the internal structure of an embodiment of the present utility model; Figure 5 This is a second-view schematic diagram of the internal structure of an embodiment of the present utility model; Figure 6 This is a third-view structural diagram of the internal structure of an embodiment of the present utility model; Figure 7 This is a schematic diagram of the inner shell structure of an embodiment of the present utility model.

[0017] In the diagram: 1. Outer shell; 2. Back shell; 3. Inner shell; 21. Connecting groove; 22. Rib; 24. Bolt channel; 4. Control circuit board; 5. Conductive connecting strip; 6. Camera assembly; 61. Visible light camera; 62. Thermal imaging camera; 7. Zoom module; 71. Focusing motor; 8. Through hole; 9. Display screen; 10. Operation buttons. Detailed Implementation

[0018] To address the problem that traditional fire detection equipment lacks effective zoom capabilities and cannot flexibly observe fire scene images, this utility model provides a fire-specific variable-focus visual detection instrument. The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0019] Please see Figure 1-7 This utility model provides a fire-fighting-specific variable-focus visual detection instrument, including an outer shell 1 and a back shell 2. The control circuit board 4 is installed inside the outer shell 1. The control circuit board 4 is connected to a camera component 6 for acquiring images of the interior of a fire scene via a conductive connecting strip 5. The camera component 6 includes a visible light camera 61 and a thermal imaging camera 62 disposed on the side of the back shell 2. The visible light camera 61 and the thermal imaging camera 62 are snapped between the outer shell 1 and the back shell 2 through the back shell 2.

[0020] A zoom module 7 for adjusting the focal length is provided at the visible light camera 61. The zoom module 7 includes a focusing motor 71. The output end of the focusing motor 71 is connected to the lens group of the visible light camera 61 through a transmission component, so that the focusing motor 71 drives the lens group of the visible light camera 61 to move along the optical axis through the transmission component, thereby adjusting the focal length of the visible light camera 61.

[0021] The outer casing 1 is equipped with a display screen 9, and the lower part of the display screen 9 is equipped with operation buttons 10, so that firefighters can interact with the detection device through the display screen 9.

[0022] The control circuit board 4 includes a controller and a power supply. The visible light camera 61, the thermal imaging camera 62, the focusing motor 71, the display screen 9, and the power supply are all connected to the controller.

[0023] An inner liner shell 3 is provided on the inner wall of the back shell 2. Two sets of connecting grooves 21 are provided on the inner liner shell 3, and ribs 22 are provided on the outer periphery of the two sets of connecting grooves 21. The enclosed areas of the ribs 22 respectively cooperate with the visible light camera 61 and the thermal imaging camera 62, so that the visible light camera 61 and the thermal imaging camera 62 are snapped to the inner liner shell 3 through the ribs 22. Both the back shell 2 and the inner liner shell 3 are provided with through holes 8 to cooperate with the visible light camera 61 and the thermal imaging camera 62, so that the visible light camera 61 and the thermal imaging camera 62 can collect images of the interior of the fire scene through the through holes 8. A bolt channel 24 is provided on the side of the inner liner shell 3 away from the back shell 2, so that bolts can be connected to the outer shell 1 in sequence through the back shell 2 and the inner liner shell 3.

[0024] The working principle of the fire-fighting variable-focus visual detection device provided by this utility model is as follows: After the firefighter arrives at the fire scene with the detection device, he starts the detection device, and the power supply provides power to the control circuit board 4, camera, focusing motor 71, display screen 9 and other components.

[0025] In well-lit fire areas, the visible light camera 61 captures visible light images of the fire through its lens. The captured image signals are converted into electrical signals and transmitted to the control circuit board 4 via the conductive connecting strip 5.

[0026] The thermal imaging camera 62 uses an infrared detector to sense the infrared radiation emitted by objects in the fire scene, converts the infrared signal into an electrical signal, and transmits it to the control circuit board 4 via the conductive connecting strip 5. Even in environments with poor visible light imaging, such as dense smoke or darkness, the thermal imaging camera 62 can effectively capture infrared information about the fire source, heat source distribution, and trapped personnel.

[0027] Firefighters send zoom commands to the controller via button 10 based on actual reconnaissance needs. Upon receiving the command, the controller sends a drive signal to the focusing motor 71. The focusing motor 71 drives the lens assembly inside the visible light camera 61 to move along the optical axis, thereby changing the focal length. Adjusting the focal length allows the visible light camera 61 to flexibly adjust its imaging range, enabling long-distance observation of the overall fire situation or close-up examination of burning details.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fire-fighting-specific variable-focus visual detection device, characterized in that: The device includes an outer shell (1) and a back shell (2) for a visual detector. A control circuit board (4) is installed inside the outer shell (1). The control circuit board (4) is connected to a camera assembly (6) for collecting images inside a fire scene via a conductive connecting strip (5). The camera assembly (6) includes a visible light camera (61) and a thermal imaging camera (62) installed on the side of the back shell (2). A zoom module (7) for adjusting the focal length is provided at the visible light camera (61). The zoom module (7) includes a focusing motor (71). The output end of the focusing motor (71) is connected to the lens group of the visible light camera (61) through a transmission component, so that the focusing motor (71) drives the lens group of the visible light camera (61) to move along the optical axis through the transmission component, thereby adjusting the focal length of the visible light camera (61).

2. The fire-fighting-specific variable-focus visual detection device according to claim 1, characterized in that: The visible light camera (61) and the thermal imaging camera (62) are located between the outer shell (1) and the back shell (2).

3. The fire-fighting-specific variable-focus visual detection device according to claim 2, characterized in that: A display screen (9) is provided on the outer casing (1), and an operation button (10) is provided at the lower part of the display screen (9) so that firefighters can interact with the detection device through the display screen (9).

4. A fire-fighting-specific variable-focus visual detection device according to claim 3, characterized in that: The control circuit board (4) includes a controller and a power supply. The visible light camera (61), thermal imaging camera (62), focusing motor (71), display screen (9) and power supply are all connected to the controller.

5. A fire-fighting-specific variable-focus visual detection device according to claim 1, characterized in that: The inner wall of the back shell (2) is provided with an inner liner shell (3). Two sets of connecting grooves (21) are provided at the inner liner shell (3). Ribs (22) are provided on the outer periphery of the two sets of connecting grooves (21). The enclosed area of ​​the ribs (22) cooperates with the visible light camera (61) and the thermal imaging camera (62) respectively, so that the visible light camera (61) and the thermal imaging camera (62) are snapped to the inner liner shell (3) by the ribs (22).

6. A fire-fighting-specific variable-focus visual detection device according to claim 5, characterized in that: Both the back shell (2) and the inner liner shell (3) are provided with through holes (8) to cooperate with the visible light camera (61) and the thermal imaging camera (62), so that the visible light camera (61) and the thermal imaging camera (62) can collect images of the interior of the fire scene through the through holes (8).

7. A fire-fighting-specific variable-focus visual detection device according to claim 5, characterized in that: A bolt channel (24) is provided on the side of the inner liner (3) away from the back shell (2) so that the bolts can be connected to the outer shell (1) in sequence through the back shell (2), the inner liner (3).

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