Intelligent fire monitor

Abstract

The utility model relates to the field of ship fire fighting, concretely relates to an intelligent fire monitor, through setting up pressure sensor, real -time monitoring the reaction force produced by high pressure injection and transmission to control system, and control system receives signal and automatically adjusts the hydraulic pressure of hydraulic cylinder oil flow to balance the reaction force, reduces the reaction impact amplitude of fire monitor body to below 5%. Control system constructs 3D fire source distribution map according to the multiple detection data provided by multimode fire source detection module. Control system detects the rotation angle of fire monitor body through angle sensor, and control system controls the angle adjustment of electric device drive fire monitor body to realize accurate fire extinguishing. The utility model solves the problem that the traditional water cannon is influenced by the reaction force when high pressure injection, and the overall fire extinguishing efficiency is reduced.

Description

Technical Field

[0001] This utility model relates to the field of marine fire protection technology, and in particular to an intelligent fire monitor. Background Technology

[0002] In shipboard firefighting systems, marine fire monitors are key firefighting equipment, widely used in critical areas such as decks, engine rooms, and cargo holds to achieve rapid response and efficient fire suppression. Traditional marine fire monitors mostly use high-pressure water jets, possessing a certain firefighting capability and coverage area. However, with the trend of ships becoming larger and more complex, traditional fire monitors have gradually revealed a series of problems in practical applications, failing to meet the needs of current vessels.

[0003] The enormous reaction force generated by traditional water cannons during high-pressure jetting not only affects their own spray accuracy but also interferes with the overall stability of the ship. This problem is closely related to limitations in fire source detection, insufficient intelligent control, and limited coverage in large areas. For example, due to the lack of an intelligent feedback mechanism, it is impossible to dynamically adjust the spray angle and intensity according to changes in the fire source location, and the need to control recoil limits the range, accuracy, and coverage of traditional water cannons.

[0004] Therefore, there is an urgent need for an intelligent fire monitor that can reduce the impact of reaction forces and improve the overall fire extinguishing efficiency. Utility Model Content

[0005] To address the issue that the reaction force of traditional water cannons under high-pressure jets reduces their overall fire extinguishing efficiency.

[0006] This utility model provides an intelligent fire monitor, including a fire monitor body, a stable base, a multimodal fire source detection module, and a control system. The fire monitor body includes a water pump, a DC spray nozzle, an angle sensor, and an electric actuator. The water pump is connected to the inlet of the fire monitor body, and the DC spray nozzle is connected to the outlet of the fire monitor body. The stable base is rotatably connected to the fire monitor body and includes a hydraulic cylinder and pressure sensors installed on both sides of the hydraulic cylinder. The multimodal fire source detection module is used to accurately locate the fire source position and includes an infrared thermal imager, a lidar, and a visual inspection camera installed on the fire monitor body. The control system is electrically connected to the water pump, the DC spray nozzle, the angle sensor, the electric actuator, the hydraulic cylinder, the pressure sensor, the infrared thermal imager, the lidar, and the visual inspection camera, respectively. The control system is used to realize adaptive path planning and mode switching of the fire monitor body.

[0007] Preferably, the fire monitor body includes a front part of the monitor body, a rear part of the monitor body, a vertical rotation joint, and a horizontal rotation joint. One end of the rear part of the monitor body is rotatably connected to the front part of the monitor body in a vertical direction via the vertical rotation joint, and the other end of the rear part of the monitor body is rotatably connected to the stable base in a horizontal direction via the horizontal rotation joint. The DC spray nozzle is connected to the water outlet of the front part of the monitor body. Two angle sensors are provided, which are used to detect the horizontal rotation angle and the vertical rotation angle of the fire monitor, respectively. Two electric actuators are provided, which are used to drive the rear end of the monitor body to rotate in a horizontal direction and drive the front end of the monitor body to rotate in a vertical direction, respectively.

[0008] Preferably, a pressure gauge is provided at the rear of the gun barrel to monitor the internal pressure at the rear of the gun barrel in real time.

[0009] Preferably, the stabilizing base also includes a flexible metal joint and anti-loosening bolts.

[0010] Preferably, the multimodal fire source detection module also includes a gas sensor installed on the fire monitor body, and the gas sensor and the control system are electrically connected.

[0011] Preferably, the control system is electrically connected to a hydraulic platform control unit, a fire pump control unit, and a spray control unit; the hydraulic platform control unit is electrically connected to the hydraulic cylinder and the pressure sensor respectively; the fire pump control unit is electrically connected to the water pump; and the spray control unit is electrically connected to the electric actuator and the angle sensor respectively.

[0012] Preferably, the control system includes a main control chip, which is used for multi-task parallel processing.

[0013] Preferably, the control system includes a communication unit for data interaction with external systems, and the communication unit supports CAN, RS485, IIC or SPI protocols.

[0014] Preferably, the control system integrates AI positioning algorithm and PID algorithm. The AI ​​positioning algorithm uses a convolutional neural network to fuse and analyze multi-source data to achieve fire source location.

[0015] Preferably, the fire source location error of the AI ​​positioning algorithm does not exceed 0.5 meters.

[0016] The beneficial effects of this utility model are as follows: 1) By setting a pressure sensor, the reaction force generated by the high-pressure jet is monitored in real time and transmitted to the control system. The control system receives the signal and automatically adjusts the hydraulic oil flow of the hydraulic cylinder to balance the reaction force and reduce the impact amplitude of the reaction force of the fire monitor body to less than 5%.

[0017] 2) By setting up an infrared thermal imager to penetrate smoke and detect the temperature distribution of the fire source, the high-temperature area can be located; by scanning three-dimensional space with lidar, the precise coordinates of the fire source location can be constructed; and by using a visual camera to assist in identifying the shape and dynamic changes of the fire source.

[0018] 3) The control system constructs a 3D fire source distribution map based on various detection data provided by the multimodal fire source detection module, and obtains accurate fire source coordinates after processing. The control system detects the rotation angle of the fire monitor body through an angle sensor, and controls the electric device to drive the angle adjustment of the fire monitor body to achieve precise fire extinguishing.

[0019] 4) The control system automatically switches between direct current, atomization, or mixed spray modes based on temperature data obtained from the infrared thermal imager and the temperature gradient to improve fire extinguishing efficiency. Direct current mode is used when facing large-area fires, while atomization mode is used when facing localized high-temperature points.

[0020] This solves the problem of reduced overall fire extinguishing efficiency caused by the reaction force of high-pressure jets in traditional water cannons. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of an intelligent fire monitor provided by this utility model.

[0022] Figure 2 The present invention provides a circuit connection structure block diagram of an intelligent fire monitor.

[0023] In the diagram: 1-Fire monitor body; 11-Water pump; 12-DC spray nozzle; 13-Angle sensor; 14-Electric actuator; 15-Front part of the monitor; 16-Rear part of the monitor; 17-Vertical rotation joint; 18-Horizontal rotation joint; 19-Pressure gauge; 2-Stabilizing base; 21-Hydraulic cylinder; 22-Pressure sensor; 23-Flexible metal joint; 3-Multimodal fire source detection module; 31-Infrared thermal imager; 32-LiDAR; 33-Visual inspection camera; 34-Gas sensor; 4-Control system; 41-Hydraulic platform control unit; 42-Fire pump control unit; 43-Spray control unit; 44-Communication unit. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] Reference Figures 1-2An intelligent fire monitor includes a fire monitor body 1, a stabilizing base 2, a multimodal fire source detection module 3, and a control system 4. The fire monitor body 1 includes a water pump 11, a DC spray nozzle 12, an angle sensor 13, and an electric actuator 14. The water pump 11 is connected to the inlet of the fire monitor body 1, and the DC spray nozzle 12 is connected to the outlet of the fire monitor body 1. The stabilizing base 2 is rotatably connected to the fire monitor body 1. The stabilizing base 2 includes a hydraulic cylinder 21 and pressure sensors 22 installed on both sides of the hydraulic cylinder 21. The multimodal fire source detection module 3 is used to accurately locate the fire source. The multimodal fire source detection module 3 includes an infrared thermal imager 31, a lidar 32, and a visual inspection camera 33 installed on the fire monitor body 1. The control system 4 is electrically connected to the water pump 11, the DC spray nozzle 12, the angle sensor 13, the electric actuator 14, the hydraulic cylinder 21, the pressure sensor 22, the infrared thermal imager 31, the lidar 32, and the visual inspection camera 33, respectively. The control system 4 is used to realize adaptive path planning and mode switching of the fire monitor body 1.

[0026] By setting a pressure sensor 22, the reaction force generated by the high-pressure jet is monitored in real time and transmitted to the control system 4. The control system 4 receives the signal and automatically adjusts the hydraulic oil flow of the hydraulic cylinder 21 to balance the reaction force, reducing the impact amplitude of the reaction force of the fire monitor body 1 to below 5%. By setting an infrared thermal imager 31, the fire source temperature distribution is detected through smoke to locate high-temperature areas; a lidar 32 scans three-dimensional space to construct the precise coordinates of the fire source location; and a visual camera assists in identifying the shape and dynamic changes of the fire source. Based on the various detection data provided by the multimodal fire source detection module 3, the control system 4 constructs a 3D fire source distribution map, and after processing, obtains the precise coordinates of the fire source. The control system 4 detects the rotation angle of the fire monitor body 1 through the angle sensor 13, and controls the electric device 14 to drive the angle adjustment of the fire monitor body 1 to achieve precise fire extinguishing. Based on the temperature data obtained by the infrared thermal imager 31, the control system 4 automatically switches between direct current, atomization, or mixed spray modes according to the temperature gradient to improve fire extinguishing efficiency. When facing a large-area fire, the direct current mode is used, and when facing local high-temperature points, the atomization mode is used. This solves the problem of reduced overall fire extinguishing efficiency caused by the reaction force of high-pressure jets in traditional water cannons.

[0027] Specifically, the hydraulic cylinder 21 has an accuracy of ±0.1°, and the electric actuator 14 is a dual-axis motor that supports horizontal spray angles of 0~355° and vertical spray angles of 0~120°. The infrared thermal imager 31 is specifically model FLIRA615, with a resolution of 640×480 and a temperature measurement range of -20℃~1500℃. The lidar 32 can perform 360-degree omnidirectional scanning in the horizontal direction, and its scanning angle range in the vertical direction is 30 degrees. The point cloud density of the lidar 32 is 1.3MHz. The angle sensor 13 (grating) is used to detect the rotation angle of the fire monitor: the angle sensor 13 converts mechanical displacement into light signal changes through the relative movement of the grating ruler and the photoelectric reading head, and then outputs the angle value through photoelectric conversion and signal processing.

[0028] In some embodiments, the fire monitor body 1 includes a front part 15, a rear part 16, a vertical rotation joint 17, and a horizontal rotation joint 18. One end of the rear part 16 is rotatably connected to the front part 15 in the vertical direction via the vertical rotation joint 17, and the other end of the rear part 16 is rotatably connected to the stable base 2 in the horizontal direction via the horizontal rotation joint 18. The DC spray nozzle 12 is connected to the outlet of the front part 15. Two angle sensors 13 are provided, which are used to detect the horizontal rotation angle and the vertical rotation angle of the fire monitor, respectively. Two electric devices 14 are provided, which are used to drive the rear end of the monitor to rotate in the horizontal direction and drive the front end of the monitor to rotate in the vertical direction, respectively.

[0029] The rear section 16 of the fire monitor is connected to the front section 15 of the fire monitor via a vertical rotation joint 17, allowing the front section 15 to rotate freely in the vertical direction. The other end of the rear section 16 is connected to the stable base 2 via a horizontal rotation joint 18, allowing the rear section 16 to drive the front section 15 to rotate freely in the horizontal direction, thus achieving 360-degree coverage without blind spots. Two angle sensors 13 monitor the horizontal and vertical rotation angles of the fire monitor body, respectively, and feed the data back to the control system 4 in real time. The control system 4 calculates the current attitude of the fire monitor body 1 based on the data transmitted by the angle sensors 13, compares it with the target angle, and dynamically adjusts the output of the electric device 14. During high-pressure spraying, the fire monitor body 1 is affected by recoil, and the spray angle changes. The feedback from the angle sensors 13 ensures that the water outlet of the front section 15 of the fire monitor body is always aimed at the fire source.

[0030] The front section 15, rear section 16, vertical rotating joint 17, and horizontal rotating joint 18 of the gun barrel are made of 316L stainless steel with an IP68 protection rating to adapt to the high salt spray environment of the ocean. The horizontal rotating joint can be a rotary bearing or a gear set, and the vertical rotating joint can be a hinge or a worm gear mechanism.

[0031] Preferably, a pressure gauge 19 is provided in the rear section 16 of the gun barrel, which is used to monitor the internal pressure of the rear section 16 of the gun barrel in real time.

[0032] By setting pressure gauge 19, it is easy to manually check the pressure at the rear of the fire monitor and troubleshoot any malfunctions in a timely manner.

[0033] In some embodiments, the stabilizing base 2 also includes a flexible metal joint 23 and anti-loosening bolts.

[0034] Ships vibrate during navigation due to wave impacts or mechanical operation. The flexible metal joint 23 can absorb this vibration energy and reduce its transmission to the fire monitor body 1. In the high-frequency vibration environment of the ship deck, ordinary bolts may loosen due to vibration, while the locking force of the anti-loosening bolts can maintain a stable connection between the fire monitor body 1 and the ship deck.

[0035] In some embodiments, the multimodal fire source detection module 3 also includes a gas sensor 34 disposed on the fire monitor body 1, and the gas sensor 34 is electrically connected to the control system 4.

[0036] Gas sensor 34 is used to detect smoke concentration. When the smoke concentration exceeds a threshold, control system 4 can automatically activate the intelligent fire monitor. When the smoke concentration changes, control system 4 can control the DC spray nozzle 12 to switch modes, such as switching from DC mode to atomization mode to continue firefighting. In addition, by setting the gas sensor 34 to introduce smoke parameters, combined with the temperature data obtained by infrared thermal imager 31, the spatial coordinate data obtained by lidar 32, and the visual camera to assist in identifying the shape and dynamic changes of the fire source, control system 4 can more accurately locate the fire source.

[0037] In some embodiments, the control system 4 is electrically connected to a hydraulic platform control unit 41, a fire pump control unit 42, and a spray control unit 43; the hydraulic platform control unit 41 is electrically connected to the hydraulic cylinder 21 and the pressure sensor 22 respectively; the fire pump control unit 42 is electrically connected to the water pump 11; and the spray control unit 43 is electrically connected to the electric actuator 14 and the angle sensor 13 respectively.

[0038] By setting up a hydraulic platform control unit 41, the control system 4 achieves closed-loop dynamic adjustment of the hydraulic cylinder 21, and dynamically adjusts the hydraulic oil flow rate based on the data from the pressure sensor 22 to balance the reaction force. By setting up a fire pump control unit 42, the control system 4 adjusts the water pressure and flow rate according to the fire situation. By setting up a spray control unit 43, the control system 4 adjusts the elevation and horizontal angles of the fire monitor body 1 in real time.

[0039] In some implementations, the control system 4 includes a master control chip for performing multi-task parallel processing.

[0040] The specific model of the main control chip is NVIDIA Jetson AGX Xavier. The main control chip can simultaneously handle multiple independent tasks such as sensor data acquisition, communication protocol parsing, and actuator control through multi-task scheduling such as thread-level parallelism (TLP) or data-level parallelism (DLP).

[0041] In some embodiments, the control system 4 includes a communication unit 44 for data interaction with external systems, and the communication unit 44 supports CAN, RS485, IIC or SPI protocols.

[0042] By setting up communication unit 44, the control system 4 can be integrated with other fire protection systems on the ship to achieve joint fire suppression.

[0043] In some implementations, the control system 4 integrates an AI positioning algorithm and a PID algorithm. The AI ​​positioning algorithm uses a convolutional neural network to fuse and analyze multi-source data to locate the fire source.

[0044] The convolutional neural network can fuse data from devices such as infrared thermal imager 31, lidar 32, visual inspection camera 33, and gas sensor 34 to extract the spatiotemporal features of the fire source; it learns nonlinear features about flame shape and smoke diffusion patterns through training data; and it can accurately identify the location of the fire source even under strong interference from background light and obstruction. The PID algorithm has low computational complexity and is suitable for the high-frequency sampling and rapid response scenarios of this intelligent fire monitor. The PID algorithm achieves dynamic balance with millisecond-level response, reducing the impact amplitude of the reaction force of the fire monitor body 1 to below 5%.

[0045] Preferably, the fire source location error of the AI ​​positioning algorithm does not exceed 0.5 meters. This ensures that the fire source is quickly extinguished by the intelligent fire monitor. In dense fog or nighttime scenarios, a positioning error of 0.5 meters can be accurately identified by the infrared thermal imager 31.

[0046] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "assembly" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0047] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this invention. It will be clearly understood by those skilled in the art that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0048] 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. An intelligent fire monitor, characterized in that: include: The fire monitor body includes a water pump, a DC spray nozzle, an angle sensor, and an electric actuator. The water pump is connected to the inlet of the fire monitor body, and the DC spray nozzle is connected to the outlet of the fire monitor body. The stable base is rotatably connected to the fire monitor body and includes a hydraulic cylinder and pressure sensors installed on both sides of the hydraulic cylinder; The multimodal fire source detection module is used to accurately locate the fire source. The multimodal fire source detection module includes an infrared thermal imager, a lidar and a visual inspection camera installed on the fire monitor body. The control system is electrically connected to the water pump, DC spray nozzle, angle sensor, electric actuator, hydraulic cylinder, pressure sensor, infrared thermal imager, lidar and visual inspection camera. The control system is used to realize the adaptive path planning and mode switching of the fire monitor body.

2. The intelligent fire monitor according to claim 1, characterized in that: The fire monitor body includes a front part of the monitor body, a rear part of the monitor body, a vertical rotation joint, and a horizontal rotation joint. One end of the rear part of the monitor body is rotatably connected to the front part of the monitor body via the vertical rotation joint in a vertical direction, and the other end of the rear part of the monitor body is rotatably connected to the stable base via the horizontal rotation joint in a horizontal direction. The DC spray nozzle is connected to the water outlet at the front part of the monitor body. Two angle sensors are provided, which are used to detect the horizontal rotation angle and the vertical rotation angle of the fire monitor, respectively. Two electric actuators are provided, which are used to drive the rear end of the monitor body to rotate in a horizontal direction and drive the front end of the monitor body to rotate in a vertical direction, respectively.

3. The intelligent fire monitor according to claim 2, characterized in that: A pressure gauge is installed at the rear of the gun barrel, which is used to monitor the internal pressure at the rear of the gun barrel in real time.

4. The intelligent fire monitor according to claim 1, characterized in that: The stabilizing base also includes a flexible metal joint and anti-loosening bolts.

5. The intelligent fire monitor according to claim 1, characterized in that: The multimodal fire source detection module also includes a gas sensor installed on the fire monitor body, and the gas sensor and the control system are electrically connected.

6. The intelligent fire monitor according to claim 1, characterized in that: The control system is electrically connected to a hydraulic platform control unit, a fire pump control unit, and a spray control unit; The hydraulic platform control unit is electrically connected to the hydraulic cylinder and the pressure sensor, respectively; The fire pump control unit is electrically connected to the pump; The injection control unit is electrically connected to the electric actuator and the angle sensor, respectively.

7. The intelligent fire monitor according to claim 1, characterized in that: The control system includes a main control chip, which is used for multi-task parallel processing.

8. The intelligent fire monitor according to claim 1, characterized in that: The control system includes a communication unit for data interaction with external systems. The communication unit supports CAN, RS485, IIC, or SPI protocols.

9. The intelligent fire monitor according to claim 1, characterized in that: The control system integrates AI positioning algorithm and PID algorithm. The AI ​​positioning algorithm uses a convolutional neural network to fuse and analyze multi-source data to achieve fire source location.

10. The intelligent fire monitor according to claim 9, characterized in that: The AI ​​positioning algorithm has a fire source positioning error of no more than 0.5 meters.

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