Intelligent targeted ejection fire extinguishing device based on visual precise recognition

Abstract

The invention discloses an intelligent targeted ejection fire extinguishing device based on visual precise recognition, and relates to the field of fire extinguishing. The problems that an existing fire extinguishing bomb type fire extinguishing device is low in automation degree, a fire extinguishing bomb needs to leak in a manual or electronic control mode or other modes, the operation risk is large, and control is complex are solved. The lifting mechanism is used for driving the launching mechanism to move left and right relative to the chassis and further used for controlling the pitching angle of the launching mechanism. The processor is used for positioning a heat source position in an infrared thermal imaging picture acquired by the infrared thermal imager, generating a corresponding driving signal according to a positioning result, and generating a launching driving signal to control the launching mechanism to launch the fire extinguishing bomb after rotating and pitching control is performed on the lifting mechanism; the temperature sensing shell of the fire extinguishing bomb is damaged when the temperature exceeds a temperature threshold value in the moving process, so that the fire extinguishing powder in the temperature sensing shell leaks, and fire extinguishing is achieved. The fire extinguishing device is used for realizing automatic remote accurate fire extinguishing.

Description

Technical Field

[0001] The present invention relates to the field of fire extinguishing. Background Art

[0002] Existing fire extinguishing devices are generally gas fire extinguishing systems and water fire extinguishing systems. Their defects are that most of the fire extinguishing systems on the market are currently controlled manually, which may cause failure to start or difficulty in starting when facing a fire. The fire pump body may also crack and crack, and the packing may leak seriously, resulting in the inability to effectively respond to the fire when facing a fire. The fire hose may not be a ship inspection approved product, with partial damage and leakage at the joints, which greatly increases the maintenance cost.

[0003] The gas fire extinguishing system extinguishes the fire by releasing gas (such as carbon dioxide, heptafluoropropane, etc.). The equipment, installation and maintenance costs of the gas fire extinguishing system are usually high, especially for large or complex systems. Some gas extinguishing powders (such as carbon dioxide) may have adverse effects on the human body when released, such as suffocation, poisoning, etc. Therefore, the fire extinguishing system needs to be started after the personnel have evacuated, and there is a possibility of leakage causing harm to personnel. Some gas fire extinguishing systems have strict requirements on the environmental conditions for storage and release, such as temperature, pressure, etc., which limits their scope of application. In addition, gas fire extinguishing systems (such as electronically controlled systems) rely on power supply to start and operate, so they may not work properly in the event of a power outage.

[0004] Some of the ejection-type fire extinguishing devices currently available on the market also have some shortcomings. The stability and durability of most systems may not have been fully verified, which may lead to malfunctions or failures under certain extreme conditions. In addition, the operation of the ejection-type fire extinguishing system is relatively complicated, requiring users to have certain professional knowledge and operating skills, and to extinguish the fire by letting the fire extinguishing bombs leak through manual or electronic control. The control method is complex and the degree of intelligence is low. It also increases the training cost and time of operators, and also increases the risks during operation. If the operator fails to correctly master the usage method or operates improperly, it may result in poor fire extinguishing effect or even cause a safety accident. In addition, fire extinguishing materials leak during storage, transportation or use, which may cause potential harm to the environment and human health. If the system is not properly installed or maintained, it may cause its protective ability to decline or even fail. Therefore, the above problems need to be solved urgently. Summary of the invention

[0005] The purpose of the present invention is to solve the problems that the existing fire extinguishing bomb type fire extinguishing device has a low degree of automation and requires manual or electronic control to allow the fire extinguishing bomb to leak, resulting in high operating risks and complex control. The present invention provides an intelligent targeted ejection fire extinguishing device based on visual precise identification.

[0006] An intelligent targeted ejection fire extinguishing device based on precise visual recognition includes a chassis, a lifting mechanism and a launching mechanism arranged in sequence from bottom to top, as well as an infrared thermal imager, a fire extinguishing bomb and a processor;

[0007] The lifting mechanism is arranged on the chassis, and the launching mechanism is arranged on the lifting mechanism;

[0008] The lifting mechanism is used to drive the launching mechanism to move left and right relative to the chassis, and is also used to control the pitch angle of the launching mechanism;

[0009] The processor locates the heat source in the infrared thermal image captured by the infrared thermal imager, generates a corresponding driving signal according to the positioning result, and after rotating and pitching the lifting mechanism, generates a launching driving signal to control the launching mechanism to launch the fire extinguishing bomb;

[0010] When the temperature of the fire extinguishing bomb exceeds the threshold value during its movement, its temperature-sensitive shell is damaged, causing the fire extinguishing powder in the temperature-sensitive shell to leak out, thus achieving fire extinguishing.

[0011] Preferably, the launching mechanism has a bullet changing function, and the launching mechanism includes a profile frame, a conveying mechanism, a push plate, 4 acceleration motors, 4 friction wheels, a door-type connecting frame, a front single guide rail and a rear double guide rail mechanism;

[0012] The front single guide rail and the rear double guide rail mechanism are arranged in sequence from front to back along the length direction of the profile frame, and the front single guide rail is fixed on the profile frame, and the rear double guide rail mechanism can move left and right along the width direction of the profile frame; fire extinguishing bombs are arranged on both guide rails in the rear double guide rail mechanism, and the fire extinguishing bombs are slidably connected to the guide rails through a slider;

[0013] After the rear double-track mechanism moves, one of the guide rails in the rear double-track mechanism is spliced ​​with the front single guide rail to form a launch guide rail;

[0014] Four accelerating motors are fixed in an array at the front end of the profile frame, and the four accelerating motors are rotatably connected to the four friction wheels respectively. A door-type connecting frame is arranged across the four accelerating motors distributed in an array, and an infrared thermal imager is fixed on the upper surface of the crossbeam of the door-type connecting frame.

[0015] An acceleration channel is formed between two rows of friction wheels corresponding to two rows of acceleration motors among the four acceleration motors;

[0016] The conveying mechanism is arranged on one side of the profile frame, and the push plate is fixed on the conveying mechanism. The movement of the conveying mechanism drives the push plate arranged thereon to push the fire extinguishing bomb to move forward along the launching guide rail, enter the accelerating channel, accelerate and then be fired.

[0017] Preferably, the launching mechanism further comprises a height limiting wheel, and the height limiting wheel is fixed to the lower surface of the crossbeam of the door-type connecting frame, and is used to limit the height of the fire extinguishing bomb.

[0018] Preferably, the launching mechanism further comprises two left and right limiting wheels, forming left and right limiting channels between the two wheels, both of which are fixed on the profile frame and close to the entrance of the acceleration channel;

[0019] The left and right limit channels are used to align with the acceleration channel.

[0020] Preferably, at least one fire extinguishing bomb is provided on each guide rail in the rear end double guide rail mechanism.

[0021] Preferably, the infrared thermal imager is fixed on the transmitting mechanism, and the processor is fixed on the lifting mechanism.

[0022] Preferably, the temperature sensing housing is 3D printed using PETG material.

[0023] Preferably, the fire extinguishing powder component is a mixture formed by ammonium phosphate, ammonium chloride, sodium carbonate and silicate.

[0024] Preferably, the tail of the fire extinguishing bomb is realized by a four-blade tail wing.

[0025] Preferably, the filling rate of the fire extinguishing powder is 30% to 50%.

[0026] Advantages of the present invention:

[0027] The hardware part of the intelligent targeted ejection fire extinguishing device based on visual precise identification is realized by a processor and an infrared thermal imager. It has a simple and reliable structure and does not require excessive maintenance costs. The entire identification and fire extinguishing process is completed by the device itself, without the need for human control. It has a high degree of automation and avoids operational errors caused by human control that lead to leakage of fire extinguishing powder and errors in the fire extinguishing system.

[0028] The fire extinguishing device of the present invention uses the temperature change of the external environment of the infrared thermal imager to find the fire source and respond to the launch of fire extinguishing bombs. It can monitor the temperature change of the site in real time. If the fire source is found, it can respond to extinguish the fire in a very short time, thereby preventing the fire from expanding and causing more losses when it is unattended.

[0029] The temperature-sensitive shell of the fire extinguishing bomb is very sensitive to temperature. It remains hard at room temperature and is damaged when the temperature threshold is exceeded, causing the fire extinguishing powder in the temperature-sensitive shell to leak out, thereby extinguishing the fire.

[0030] Intelligent identification and aiming: The fire extinguishing device of the present invention can automatically identify the fire target through thermal imaging recognition technology and intelligent algorithm control, realize automatic aiming and the launch of fire extinguishing bombs, and effectively prevent the fire from spreading.

[0031] Improve firefighting safety: By reducing the number of times firefighters enter dangerous areas, reducing their risk of injury, and avoiding exposure to dangerous environments such as high temperature and thick smoke, the safety of firefighting operations can be significantly improved.

[0032] Accurate fire extinguishing in dense smoke environment: The infrared thermal imager equipped in this device can accurately lock the location of the fire source in dense smoke environment without being affected by obstructed vision, thereby improving the accuracy and efficiency of fire extinguishing.

[0033] Long-distance delivery capability: With long-distance delivery capability, it can accurately lock the distant fire source, and accurately deliver the fire-extinguishing bomb to the fire source through the launching mechanism, so as to achieve long-distance and efficient fire extinguishing. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a three-dimensional structural schematic diagram of the intelligent targeted ejection fire extinguishing device based on visual precise identification according to the present invention;

[0035] Figure 2 and Figure 3 All of them are schematic diagrams of the structure of the launching mechanism 3 at different viewing angles. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0038] Source of the concept of the invention: The intelligent targeted ejection fire extinguishing device based on visual precise identification described in the invention is designed to have high flexibility and positioning accuracy, and is independent of manual control, can launch fire extinguishing bombs at different angles and distances, and integrate it with vision, which can help accurately deliver the fire extinguishing bomb to the fire point to achieve the fire extinguishing effect. The fire extinguishing bomb is a specially designed device with fire extinguishing powder inside. When the fire extinguishing bomb is delivered to the fire scene, the fire extinguishing powder therein will effectively extinguish the flame. The temperature-sensitive shell of the fire extinguishing bomb 5 is very sensitive to temperature, remains hard at room temperature, and is damaged when the temperature threshold is exceeded, causing the fire extinguishing powder in the temperature-sensitive shell to leak, thereby achieving fire extinguishing.

[0039] Specific implementation method 1. See Figure 1The present embodiment is described. The intelligent targeted ejection fire extinguishing device based on visual precise identification described in the present embodiment includes a chassis 1, a lifting mechanism 2 and a launching mechanism 3 arranged in sequence from bottom to top, and also includes an infrared thermal imager 4, a fire extinguishing bomb 5 and a processor;

[0040] The lifting mechanism 2 is arranged on the chassis 1, and the launching mechanism 3 is arranged on the lifting mechanism 2;

[0041] The lifting mechanism 2 is used to drive the launching mechanism 3 to move left and right relative to the chassis 1, and is also used to control the pitch angle of the launching mechanism 3;

[0042] The processor locates the heat source position in the infrared thermal image captured by the infrared thermal imager 4, and generates a corresponding driving signal according to the positioning result, and after rotating and pitching the lifting mechanism 2, generates a launching driving signal to control the launching mechanism 3 to launch the fire extinguishing bomb 5;

[0043] When the temperature of the fire extinguishing bomb 5 exceeds a threshold value during its movement, its temperature-sensitive outer shell is damaged, causing the fire extinguishing powder in the temperature-sensitive outer shell to leak, thereby achieving fire extinguishing.

[0044] In specific applications, the filling rate of fire extinguishing powder is 30% to 50%.

[0045] In this embodiment, the hardware part of the intelligent targeted ejection fire extinguishing device based on visual precise identification is realized by a processor and an infrared thermal imager. It has a simple and reliable structure and does not require excessive maintenance costs. The entire identification and fire extinguishing process is completed by the device itself, and no human control is required. The degree of automation is high. At the same time, it also avoids operational errors caused by human control, which in turn leads to leakage of fire extinguishing powder and errors in the fire extinguishing system.

[0046] The fire extinguishing device of the present invention uses the temperature change of the external environment of the infrared thermal imager 4 to find the fire source and react to launch the fire extinguishing bomb. It can monitor the temperature change of the site in real time. If the fire source is found, it can react to extinguish the fire in a very short time, thereby preventing the fire from expanding and causing more losses when it is unattended.

[0047] The temperature-sensitive shell of the fire extinguishing bomb 5 is very sensitive to temperature and remains hard at room temperature. It is damaged when the temperature threshold is exceeded, causing the fire extinguishing powder in the temperature-sensitive shell to leak, thereby achieving fire extinguishing.

[0048] See also Figure 2 and Figure 3 The launching mechanism 3 has a bullet changing function, and the launching mechanism 3 includes a profile frame 3-1, a transmission mechanism 3-2, a push plate 3-3, four acceleration motors, four friction wheels 3-4, a door-type connecting frame 3-5, a front single guide rail 3-6 and a rear double guide rail mechanism 3-7;

[0049] The front single guide rail 3-6 and the rear double guide rail mechanism 3-7 are arranged in sequence from front to back along the length direction of the profile frame 3-1, and the front single guide rail 3-6 is fixed on the profile frame 3-1, and the rear double guide rail mechanism 3-7 can move left and right along the width direction of the profile frame 3-1; the two guide rails in the rear double guide rail mechanism 3-7 are both provided with fire extinguishing bombs 5, and the fire extinguishing bombs 5 are slidably connected to the guide rails through a slider;

[0050] After the rear double-guide rail mechanism 3-7 moves, one of the guide rails in the rear double-guide rail mechanism 3-7 is spliced ​​with the front single guide rail 3-6 to form a launch guide rail;

[0051] Four accelerating motors are fixed in an array at the front end of the profile frame 3-1, and the four accelerating motors are rotatably connected to the four friction wheels 3-4 respectively. A door-type connecting frame 3-5 is arranged across the four accelerating motors distributed in an array, and an infrared thermal imager 4 is fixed on the upper surface of the crossbeam of the door-type connecting frame 3-5.

[0052] An acceleration channel is formed between two rows of friction wheels 3-4 corresponding to two rows of acceleration motors among the four acceleration motors;

[0053] The conveying mechanism 3-2 is arranged on one side of the profile frame 3-1, and the push plate 3-3 is fixed on the conveying mechanism 3-2. The movement of the conveying mechanism 3-2 drives the push plate 3-3 arranged thereon to push the fire extinguishing bomb 5 to move forward along the launching guide rail, enter the acceleration channel, accelerate and then be fired.

[0054] In specific applications, the rear double-track mechanism 3-7 can be controlled by the sliding component to move left and right along the width direction of the profile frame 3-1, so as to achieve effective track replacement of the two tracks in the rear double-track mechanism 3-7 and replace the fire extinguishing bomb 5.

[0055] The processor controls the motor in the transmission mechanism 3-2 and the four acceleration motors to boost the fire extinguishing bomb 5 into the acceleration channel, and accelerates the fire extinguishing bomb 5 through the friction wheel 3-4 to achieve firing.

[0056] And after testing, the four friction wheels of the acceleration channel can achieve a firing life of 5,000 fire extinguishing bombs, effectively solving the stability and durability problems of the ejection fire extinguishing devices currently on the market.

[0057] See also Figure 2 and Figure 3 The launching mechanism 3 also includes a height limiting wheel, and the height limiting wheel is fixed to the lower surface of the beam of the door-type connecting frame 3-5, which is used to limit the height of the fire extinguishing bomb 5.

[0058] In the preferred embodiment, by providing a height limiting wheel, the fire extinguishing bomb 5 entering the acceleration channel is prevented from flying away during the acceleration process and escaping from the acceleration channel from above, thereby ensuring the accuracy of projection.

[0059] See also Figure 2 and Figure 3 The launching mechanism 3 also includes two left and right limit wheels 3-8, which form left and right limit channels, both of which are fixed on the profile frame 3-1 and close to the entrance of the acceleration channel; the left and right limit channels are used to align with the acceleration channel.

[0060] In this preferred embodiment, in order to ensure that the fire extinguishing bomb can accurately extinguish the fire, two left and right limiting wheels 3-8 are provided to limit the left and right positions of the fire extinguishing bomb 5, thereby ensuring that the fire extinguishing bomb can enter the acceleration channel at the same position and ensure accurate projection.

[0061] See also Figure 2 and Figure 3 At least one fire extinguishing bomb 5 is arranged on each guide rail of the rear end double guide rail mechanism 3-7, so that at least one or more fire extinguishing bombs 5 are fired simultaneously each time, thereby ensuring the efficiency and effect of fire extinguishing.

[0062] In specific application, the infrared thermal imager 4 is fixed on the transmitting mechanism 3, and the processor is fixed on the lifting mechanism 2, which can make the infrared thermal imager 4 have a wider viewing angle.

[0063] Furthermore, the temperature-sensing shell is 3D printed using PETG material, and the fire-extinguishing powder is a mixture of ammonium phosphate, ammonium chloride, sodium carbonate and silicate.

[0064] In this preferred embodiment, the temperature-sensitive shell is 3D printed with PETG material, which is very sensitive to temperature. At room temperature, it remains hard and covers the fire extinguishing powder, and the molecular state of the entire material can be maintained for several years. However, at the fire temperature, the entire shell will respond quickly and melt at a relatively fast speed, releasing the fire extinguishing powder to extinguish the fire.

[0065] Furthermore, the tail of the fire extinguishing bomb 5 is realized by a four-blade tail. This design can reduce the pressure difference resistance, avoid stress concentration and enhance the strength of the fire extinguishing bomb body. The bomb body is made of PETG material, which has high hardness and low melting point. In addition, it contains a large amount of fire extinguishing powder, which melts in a high temperature environment when it is close to the fire point to achieve the purpose of fire extinguishing.

[0066] Although the present invention is described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. It should therefore be understood that many modifications may be made to the exemplary embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that the various dependent claims and features described herein may be combined in a manner different from that described in the original claims. It should also be understood that features described in conjunction with individual embodiments may be used in other described embodiments.

Claims

1. An intelligent targeted ejection fire extinguishing device based on visual precise identification, comprising a chassis (1), a lifting mechanism (2) and a launching mechanism (3) arranged in sequence from bottom to top, characterized in that: It also includes an infrared thermal imager (4), a fire extinguishing bomb (5) and a processor; The lifting mechanism (2) is arranged on the chassis (1), and the launching mechanism (3) is arranged on the lifting mechanism (2); The lifting mechanism (2) is used to drive the launching mechanism (3) to move left and right relative to the chassis (1), and is also used to control the pitch angle of the launching mechanism (3); The processor locates the heat source position in the infrared thermal image captured by the infrared thermal imager (4), generates a corresponding driving signal according to the positioning result, performs rotation and pitch control on the lifting mechanism (2), and then generates a firing driving signal to control the firing mechanism (3) to fire the fire extinguishing bomb (5); During the movement of the fire extinguishing bomb (5), the temperature-sensitive outer shell is damaged when the temperature exceeds a threshold value, so that the fire extinguishing powder in the temperature-sensitive outer shell leaks, thereby achieving fire extinguishing.

2. The intelligent targeted ejection fire extinguishing device based on visual precise recognition according to claim 1 is characterized in that: The launching mechanism (3) has a bullet changing function, and comprises a profile frame (3-1), a transmission mechanism (3-2), a push plate (3-3), four acceleration motors, four friction wheels (3-4), a door-type connecting frame (3-5), a front single guide rail (3-6) and a rear double guide rail mechanism (3-7); The front single guide rail (3-6) and the rear double guide rail mechanism (3-7) are arranged in sequence from front to back along the length direction of the profile frame (3-1), and the front single guide rail (3-6) is fixed on the profile frame (3-1), and the rear double guide rail mechanism (3-7) can move left and right along the width direction of the profile frame (3-1); both guide rails in the rear double guide rail mechanism (3-7) are provided with fire extinguishing bombs (5), and the fire extinguishing bombs (5) are slidably connected to the guide rails through a slider; After the rear double guide rail mechanism (3-7) moves, one guide rail in the rear double guide rail mechanism (3-7) is spliced ​​with the front single guide rail (3-6) to form a launch guide rail; Four accelerating motors are fixed in an array at the front end of the profile frame (3-1), and the four accelerating motors are rotatably connected to the four friction wheels (3-4) respectively; a door-shaped connecting frame (3-5) is arranged across the four accelerating motors distributed in an array, and an infrared thermal imager (4) is fixed on the upper surface of the crossbeam of the door-shaped connecting frame (3-5); An acceleration channel is formed between two rows of friction wheels (3-4) corresponding to two rows of acceleration motors among the four acceleration motors; The conveying mechanism (3-2) is arranged on one side of the profile frame (3-1), and the push plate (3-3) is fixed on the conveying mechanism (3-2). The movement of the conveying mechanism (3-2) drives the push plate (3-3) arranged thereon to push the fire extinguishing bomb (5) to move forward along the launching guide rail, enter the accelerating channel, accelerate, and then be launched.

3. The intelligent targeted ejection fire extinguishing device based on visual precise recognition according to claim 2 is characterized in that: The launching mechanism (3) also includes a height limiting wheel, and the height limiting wheel is fixed to the lower surface of the crossbeam of the door-shaped connecting frame (3-5) and is used to limit the height of the fire extinguishing bomb (5).

4. The intelligent targeted ejection fire extinguishing device based on visual precise recognition according to claim 2 is characterized in that: The launching mechanism (3) also includes two left and right limiting wheels (3-8), which form left and right limiting channels between them, and are both fixed on the profile frame (3-1) and close to the entrance of the acceleration channel; The left and right limit channels are used to align with the acceleration channel.

5. The intelligent targeted ejection fire extinguishing device based on visual precise recognition according to claim 2 is characterized in that: At least one fire extinguishing bomb (5) is arranged on each guide rail in the rear end double guide rail mechanism (3-7).

6. The intelligent targeted ejection fire extinguishing device based on visual precise identification according to claim 1 is characterized in that: The infrared thermal imager (4) is fixed on the transmitting mechanism (3), and the processor is fixed on the lifting mechanism (2).

7. The intelligent targeted ejection fire extinguishing device based on visual precise recognition according to claim 1 is characterized in that: The temperature sensing shell is made of PETG material through 3D printing.

8. The intelligent targeted ejection fire extinguishing device based on visual precise recognition according to claim 1 is characterized in that: The fire extinguishing powder is a mixture of ammonium phosphate, ammonium chloride, sodium carbonate and silicate.

9. The intelligent targeted ejection fire extinguishing device based on visual precise recognition according to claim 1 is characterized in that: The tail of the fire extinguishing bomb (5) is realized by adopting a four-leaf tail wing.

10. The intelligent targeted ejection fire extinguishing device based on visual precise recognition according to claim 1 is characterized in that: The filling rate of fire extinguishing powder is 30% to 50%.

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