Fire suppression device

Abstract

The utility model provides a fire suppression device, which comprises a detection unit, a processing unit and an execution unit, and is characterized in that the detection unit at least comprises an infrared temperature sensor, a camera module with a flame recognition function and a laser ranging module, the infrared temperature sensor and the camera module with the flame recognition function are used for detecting flames, the laser ranging module is used for determining an ignition point, and the detection unit sends a detected signal to the processing unit; the processing unit is used for processing the received signal, sending the signal to the laser ranging unit according to a processing result, and sending the signal to the execution unit; and the execution unit is used for receiving the signal and executing fire suppression on the ignition point. The fire suppression device is compact in structure, high in flame detection and positioning accuracy, fast in fire suppression response, low in maintenance cost and high in cost efficiency performance.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of fire fighting, especially to a fire suppression device. BACKGROUND

[0002] Deploying an automatic fire extinguishing system in a small warehouse, an electric bicycle garage and other small space environments is a main method and effective way to avoid major losses caused by fire.

[0003] An automatic fire extinguishing system can discover and extinguish flames without human supervision, and can include a spray fire extinguishing device, a dry powder fire extinguishing ball and / or a fire extinguishing water cannon and other devices, but it is difficult to achieve a good balance between flame perception, reaction speed, fire extinguishing medium and cost, and there is a defect that the comprehensive efficiency and cost performance is not high. SUMMARY

[0004] The utility model aims at providing a fire suppression device for small warehouses, electric bicycle garages and other environments, which can detect fires according to multi-modal sensor signals and automatically take fire suppression measures.

[0005] In order to achieve the above-mentioned purpose, one embodiment of the utility model provides a fire suppression device, wherein the device comprises:

[0006] a detection unit, a processing unit and an execution unit, wherein,

[0007] The detection unit comprises at least an infrared temperature sensor, a camera module with flame recognition function and a laser ranging module, wherein the infrared temperature sensor and the camera module with flame recognition function are used to detect flames, and the laser ranging module is used to determine the ignition point. The detection unit sends the detected signal to the processing unit;

[0008] The processing unit is used to process the received signal and send a signal to the laser ranging unit according to the processing result, and send a signal to the execution unit;

[0009] The execution unit is used to receive the signal and execute fire suppression on the ignition point.

[0010] Further, the processing unit comprises:

[0011] a processing circuit board comprising a microprocessor and an I2C bus hub.

[0012] Further, the model of the microprocessor comprises any of the following:

[0013] Raspberry Pi 4B;

[0014] STM32F103.

[0015] Further, the infrared temperature sensor is an MLX90640.

[0016] Further, the camera module with a flame recognition function comprises a K210 development board and a camera.

[0017] Further, the laser ranging module is an STP23.

[0018] Further, the execution unit comprises:

[0019] The dry powder fire extinguishing ball and the ejection device, wherein,

[0020] The ejection device comprises a base, a fixed structural member, a two-axis degree of freedom servo gimbal, a servo driving module, a power-off electromagnet, a MOS switch, a spring, a spring constraint structural member and an ejection barrel, wherein,

[0021] The base is fixedly connected with the fixed structural member;

[0022] The fixed structural member is fixedly connected with the detection unit, the spring, the power-off electromagnet, the two-axis degree of freedom servo gimbal and the ejection barrel respectively;

[0023] The power-off electromagnet is fixed at one end of the hollow part of the spring, and the other end of the spring is in contact with the dry powder fire extinguishing ball;

[0024] The servo driving module is electrically connected with the processing unit and the two-axis degree of freedom servo gimbal respectively;

[0025] The MOS switch is electrically connected with the processing unit and the power-off electromagnet respectively.

[0026] Further, a threading hole is formed in the fixed structural member for electrical connection wiring of the power-off electromagnet and the MOS switch.

[0027] Further, the fixed structural member is made of aluminum.

[0028] Further, the spring constraint structural member is made of 3D printing plastic by a 3D printing method of pre-embedded parts.

[0029] The working principle of the utility model is as follows:

[0030] The camera with flame identification function of the detection unit collects environmental images and performs flame identification, the infrared temperature sensor of the detection unit collects environmental temperature data and judges whether there is flame, if both confirm that there is flame, the processing unit processes after receiving the signal of the detection unit, and sends a signal to the laser ranging module of the detection unit according to the processing result, so as to determine the fire point position and process, and according to the processing result, a signal is sent to the execution unit, so as to execute the fire suppression on the fire point through the execution unit.

[0031] Compared with the prior art, the utility model has the following beneficial effects:

[0032] The fire suppression device has compact structure, high accuracy of flame identification and fire point positioning, fast fire suppression response and low maintenance cost, and has high cost performance. BRIEF DESCRIPTION OF DRAWINGS

[0033] Other features, objects and advantages of the utility model will become more apparent through reading the following detailed description of the non-limiting embodiments made with reference to the accompanying drawings:

[0034] Figure 1 A fire suppression device schematic view of one embodiment of the utility model shows;

[0035] Figure 2 An execution unit schematic view of one optional embodiment of the utility model shows;

[0036] Figure 3 A camera module schematic view of one optional embodiment of the utility model shows;

[0037] Figure 4 A fixed structure member structure schematic view of one optional embodiment of the utility model shows;

[0038] Figure 5 A spring constraint structure member structure schematic view of one optional embodiment of the utility model shows;

[0039] The same or similar reference signs in the drawings represent the same or similar parts. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings to further explain the conception, specific structure and produced technical effect of the circuit for camera module current measurement provided by the utility model, so as to fully understand the purpose, features and effect of the utility model. Wherein the embodiment and / or optional embodiment of the utility model is shown, it should be understood that the skilled in the art can modify the utility model described herein, and still achieve the beneficial effects of the utility model. Therefore, the following description should be understood as extensive knowledge for the skilled in the art, and not as a limitation on the utility model.

[0041] Further illustrated below are specific embodiments.

[0042] As Figure 1 shown in a fire suppression device schematic diagram of one embodiment of the utility model, wherein the device 1 comprises:

[0043] The detection unit 10, the processing unit 20 and the execution unit 30, wherein,

[0044] The detection unit 10 at least includes infrared temperature sensor 110, camera module 120 with flame recognition function and laser ranging module 130, wherein the infrared temperature sensor 110 and the camera module 120 with flame recognition function are used for detecting flame, and the laser ranging module 130 is used for determining the ignition point, and the detection unit 10 sends the detected signal to the processing unit 20;

[0045] The processing unit 20 is used for processing the received signal, and sending the signal to the laser ranging unit 130 and the execution unit 30 according to the processing result;

[0046] The execution unit 30 is used for receiving the signal and executing the fire suppression on the ignition point.

[0047] Among them, the detection unit 10 of the device 1 at least includes the infrared temperature sensor 110 that can find the early heating point or flame, the camera module 120 with image recognition function that can recognize the abnormal situation such as flame, the environmental temperature signal collected by the infrared temperature sensor 110 is sent to the processing unit 20, the processing unit 20 processes the acquired environmental temperature signal, judges whether there is temperature anomaly, if there is, the position of temperature anomaly is confirmed as the position where the flame may exist; The camera module 120 also identifies the collected environmental image, if the flame is identified, the related position of the flame is sent to the processing unit 20. The processing unit 20 compares and analyzes the positions sent by the two kinds of modal sensors to confirm whether it is a real flame, and then discovers the ignition point in time, which can reduce the misidentification rate and improve the accuracy of flame perception. When it is confirmed that it is a real flame, the processing unit 20 sends a signal to the laser ranging module 130 to determine the ignition point through the laser ranging module 130, and the processing unit 20 can also calculate the flight trajectory of the dry powder fire extinguishing ball according to the determined ignition point, and according to the calculation result, sends a signal to the execution unit 30 to control the execution unit 30 to launch the dry powder fire extinguishing ball to the ignition point to execute the fire suppression on the ignition point.

[0048] Among them, the device 1 further comprises a power supply unit for providing corresponding direct current stable voltage for each related unit.

[0049] Further, in an optional embodiment, the processing unit 20 comprises:

[0050] The processing circuit board 210 including the microprocessor 211 and the I2C bus hub 220.

[0051] Further, in an optional embodiment, the model of the microprocessor 211 includes any one of the following:

[0052] Raspberry Pi 4B;

[0053] STM32F103.

[0054] The processing unit 20 can include the processing circuit board 210 and the I2C bus hub 220, wherein the processing circuit board 210 should include more serial port resources and stronger computing power. The model of the microprocessor 211 included in the processing circuit board 210 can include Raspberry Pi 4B or STM32F103, both of which have perfect functions, sufficient pin resources, sufficient related data, and relatively good computing power. The programming process of Raspberry Pi 4B is relatively simple, but the programming process of STM32F103 has higher requirements for professionalism.

[0055] The infrared temperature sensor 110 can be electrically connected to the processing circuit board 210 through the I2C bus hub 220, and the camera module 120 and the laser ranging module 130 can be electrically connected to the processing circuit board through UART (Universal Asynchronous Receiver / Transmitter), respectively. The processing unit 20 can also be electrically connected to the execution unit 30 through the I2C bus hub 220 and / or GPIO (General Purpose Input / Output).

[0056] Further, in an optional embodiment, the model of the infrared temperature sensor 110 is MLX90640.

[0057] The infrared temperature sensor 110 can adopt a matrix temperature sensor module MLX90640. The matrix resolution of MLX90640 is 32*24, a 3.3V power supply voltage is used, I2C bus communication is used, data reading is relatively simple, current consumption is less than 23mA, and the working temperature range is wide (-45~85℃). The characteristics of small power, small size and large resolution of MLX90640 are very suitable for the utility model.

[0058] Further, as shown in an optional embodiment, Figure 3 The camera module 120 includes a K210 development board 121 and a camera 122.

[0059] The camera module 120 can include a K210 development board 121 and a camera 122. The K210 development board 121 adopts a RISC-V processor architecture, supports multi-modal recognition of machine vision and machine hearing, is complete in function, and is convenient for development and programming. The platform model training and specification document are well supported. The yolov2 algorithm used by the K210 development board 121 can relatively well complete the recognition task of the image collected by the camera 122, and can be widely applied to intelligent home, intelligent park, intelligent energy consumption and intelligent farm and the like. The K210 development board 121 uses a 28-nanometer advanced process of a Taiwan Semiconductor Manufacturing Company, has a dual-core 64-bit processor, and the total computing power can reach 1 TOPS. The K210 development board 121 has good power performance, stability and reliability.

[0060] Further, in an optional embodiment, the model of the laser ranging module 130 is STP23.

[0061] The laser ranging module 130 can adopt an STP23 type laser ranging module. The laser ranging module 130 has a large ranging range (the maximum measurement distance can be more than 13 meters), uses a 5V power supply voltage, can effectively avoid strong light interference, and has a minimum measurement error of millimeter level, and is suitable for use in fire scenes and the like with high-brightness flames and complex environments.

[0062] Further, in an optional embodiment as shown in Figure 2 The execution unit 30 includes:

[0063] The dry powder fire extinguishing ball and the ejection device 310, wherein,

[0064] The ejection device 310 includes a base 311, a fixed structure 312, a two-axis degree of freedom steering engine holder 313, a steering engine driving module 314, a loss-of-power electromagnet 315, a MOS switch 316, a spring 317, a spring constraint structure 318, and an ejection barrel 319, wherein,

[0065] The base 311 is fixedly connected with the fixed structure 312;

[0066] The fixed structure 312 is fixedly connected with the detection unit 10, the spring 317, the loss-of-power electromagnet 315, the two-axis degree of freedom steering engine holder 313, and the ejection barrel 319, respectively;

[0067] The loss-of-power electromagnet 315 is fixed at one end of the hollow part of the spring 317, and the other end of the spring 317 contacts the dry powder fire extinguishing ball;

[0068] The steering engine driving module 314 is electrically connected with the processing unit 20 and the two-axis degree of freedom steering engine holder 313, respectively;

[0069] The MOS switch 316 is electrically connected with the processing unit 20 and the loss-of-power electromagnet 315, respectively.

[0070] The execution unit 30 comprises a suspension type dry powder fire extinguishing ball and a launching device 310 triggered by collision. When the execution unit 30 receives a signal, the launching device 310 is aimed at the ignition point, and the suspension type dry powder fire extinguishing ball is launched to the ignition point by the launching device 310. When the suspension type dry powder fire extinguishing ball contacts the ground or the flame, the dry powder in the fire extinguishing ball is directly triggered to explode and spread to extinguish the flame. The suspension type dry powder fire extinguishing ball has low cost, long shelf life and convenient use.

[0071] The launching device 310 can comprise a base 311, a fixed structural member 312, a two-axis degree of freedom gimbal 313, a rudder drive module 314, a loss-of-power electromagnet 315, a MOS switch 316, a spring 317, a spring restraint structural member 318 and a launching barrel 319. The two-axis degree of freedom gimbal 313 is controlled in direction rotation based on a rudder controlled by a PWM (Pulse Width Modulation) signal. The two-axis degree of freedom gimbal 313 is controlled in horizontal and vertical direction rotation by two metal gear rudders. When the processing unit 20 determines the ignition point by the laser ranging module 130 and calculates the flight trajectory of the dry powder fire extinguishing ball according to the received signal, the corresponding signal is sent to the rudder drive module 314 according to the calculated flight trajectory. The rudder drive module 314 controls the two-axis degree of freedom gimbal 313 to rotate the launching barrel 319 fixed thereon in the horizontal direction to aim at the ignition point and adjust the angle in the vertical direction to ensure that the flight trajectory of the dry powder fire extinguishing ball after launching passes through the ignition point.

[0072] An exemplary microprocessor 211 can be Raspberry Pi 4B, and the rudder drive module 314 can use a 16-channel PWM rudder drive board. The Raspberry Pi 4B uses an I2C communication protocol to send a PWM drive signal to the 16-channel PWM rudder drive board through an I2C bus hub 220. The PWM rudder drive board generates a corresponding PWM signal to the two-axis degree of freedom gimbal 313 to control the two-axis degree of freedom rudder control gimbal and drive the launching barrel 319 fixed thereon to rotate in the horizontal direction and / or the vertical direction.

[0073] The base 311 is fixedly connected with the fixed structural member 312.

[0074] The base 311 can be fixed on the top of the application environment, the wall or the preset high platform according to the actual application scene environment and the demand for the device 1, and then the fixed structural member 312 is fixedly connected with the base 311 by bolts / screws.

[0075] The fixed structural member 312 is fixedly connected with the detection unit 10, the spring 317, the loss-of-power electromagnet 315, the two-axis degree of freedom gimbal 313 and the launching barrel 319.

[0076] Among them, the fixed structural component 312 is one of the most important structural components in the device 1. It is used to fix the launch tube 319, spring 317, power-off electromagnet 315, two-axis servo gimbal 313, as well as the infrared temperature sensor 110, camera module 120 and laser ranging module 130 of the detection unit 10.

[0077] An exemplary example of the fixed structural member 312 is as follows: Figure 4 As shown, the structure may include four substructures: A, B, C, and D. These substructures can be connected by screws. Spring 317 is welded to the upper surface of substructure A. Launch tube 319 is fixed via at least two screw holes 2 on the side of substructure B. Two-axis servo gimbal 313 is fixed via four screw holes 7 at the bottom of substructure C. Infrared temperature sensor 110, camera module 120, and laser ranging module 130 can be fixed to three points on substructure D via screws and / or adhesive. Substructures A, B, and C are connected via a central main screw hole 6. This main screw extends from the screw hole at the bottom of the de-energized electromagnet 315 to the large screw hole in the center of the two-axis servo gimbal 313, fixing the three substructures A, B, and C, the de-energized electromagnet 315, and the two-axis servo gimbal 313 into a single unit, preventing misalignment due to gimbal rotation. The substructures can also be fixed to each other via four screw holes 8. The D substructure is embedded in a groove on the side of the B substructure and is fixedly connected to the B substructure with screws.

[0078] In this design, the de-energized electromagnet 315 is built into the hollow middle section of the spring 317, fixed at one end near the spring 317, while the other end of the spring 317 contacts the dry powder fire extinguishing ball. The spring 317 provides the launching force for the dry powder fire extinguishing ball and requires appropriate size and force. The selection of the spring mainly involves at least the following parameters: the spring compression length and spring stiffness coefficient, which are positively correlated with the maximum elastic force; the mass of the dry powder fire extinguishing ball, the mass of the spring-suppressing structure (which is launched along with the dry powder fire extinguishing ball), and the spring mass, which are negatively correlated with the launch distance; and the launch angle (different angles result in different gravitational potential energy overcoming when the spring extends from compression to full extension). Combining these parameters, the launch velocity of the dry powder fire extinguishing ball can be determined. For example, assuming the spring compression length x, spring stiffness coefficient k, and the mass of the dry powder fire extinguishing ball m… B Mass m of the spring-suppressing structural component H spring mass m S Given the launch angle θ, according to Hooke's Law, the maximum spring force F can be calculated using the following formula (1).

[0079] F = kx (1)

[0080] The maximum elastic potential energy E of the spring can be calculated according to the following formula (2) P-all ,

[0081] E P-all = kx 2 / 2 (2)

[0082] The height h of the dry powder fire extinguishing ball rising when being launched out of the launching barrel can be calculated according to the following formula (3)

[0083] h = x sin theta (3)

[0084] The energy E consumed by the dry powder fire extinguishing ball due to the rising height when being launched out of the launching barrel can be calculated according to the following formula (4) loss ,

[0085] E loss = (m B +m H )gh + m S gh / 2 (4)

[0086] According to the energy conservation, the kinetic energy E of the dry powder fire extinguishing ball can be calculated according to the following formula (5) kB ,

[0087] E kB = E P-all -E loss (5)

[0088] Further, the speed v of the dry powder fire extinguishing ball when being launched out of the launching barrel can be calculated according to the following formula (6) B ,

[0089]

[0090] In actual deployment, once the fire suppression device provided by the present application is installed and fixed, the launching position of the dry powder fire extinguishing ball is determined, and once the flame of the fire point is detected, the fire point is determined through the laser ranging module, and the position of the fire point can also be determined. Under the condition that the launching position and the position of the fire point are determined, the execution unit of the fire suppression device can be adjusted to align with the fire point in the horizontal direction. In order to accurately launch the dry powder fire extinguishing ball to the fire point, the launching angle needs to be determined in the vertical direction, that is, the flight trajectory of the dry powder fire extinguishing ball needs to be determined in the vertical direction.

[0091] An example, in order to determine the exact angle of emission, can be combined with Euler method, by dichotomy way iterative process as follows: first, according to the dry powder fire extinguishing ball quality, launch location, launch speed, and the preset initial value of the launch angle, the trajectory parabola of the dry powder fire extinguishing ball can be calculated, and the simulation target position (the vertical direction coordinate of the simulation target position is the same as the vertical direction coordinate of the fire point) is determined; then, the simulation target position and the fire point position are compared, if the difference in the horizontal direction between the two exceeds the preset threshold, the launch angle value is adjusted, and the simulation target position is recalculated. Among them, the method of adjusting the launch angle value is as follows: if the difference in the horizontal direction between the simulation target position obtained by the current calculation and the fire point position exceeds the preset threshold, the deviation of the trajectory parabola in the vertical direction between the simulation target position obtained by the current calculation and the simulation target position obtained by the last calculation is calculated, the midpoint of the vertical direction connecting line is determined, the difference between the position corresponding to the midpoint in the horizontal direction and the fire point position is determined, and it is judged whether the absolute value of the difference is less than the preset threshold. If not, iterative calculation is performed according to the positive and negative of the difference, wherein if the difference is positive (greater than 0), it means that the simulation target position is far away, the launch angle value is adjusted by dichotomy, and the adjusted launch angle value is the current launch angle value minus half of the absolute value of the difference between the current launch angle value and the last launch angle value (if it is the first time, the last launch angle can be considered as the lower limit value of the launch angle, such as 0 degree). If the difference is negative (less than 0), it means that the simulation target position is close, the launch angle value is adjusted by dichotomy, and the adjusted launch angle value is the current launch angle value plus half of the absolute value of the difference between the current launch angle value and the last launch angle value. Iterative calculation is performed until the absolute value of the difference is less than the preset threshold. Although the method of this example has a large amount of calculation, the complexity is low, and the requirement for processing unit is not high.

[0092] Another example, the launch angle can be directly determined by the following formula (7),

[0093]

[0094] Wherein, x, y are the horizontal direction coordinate and vertical direction coordinate of the fire point respectively, v B is the launch speed.

[0095] Since the dry powder fire extinguishing ball has a certain speed during its flight along the trajectory parabola, the effect of air resistance will be more significant, which will affect the trajectory parabola (for reference, the envelope equation of projectile motion and its application published in the paper published in Physical Friends, No. 6, 2024, pp. 77-79). In actual application scenarios, the influence of air resistance should also be considered. The method of this example has high complexity and high requirement for processing unit.

[0096] The steering engine driving module 314 is electrically connected with the processing unit 20 and the two-axis freedom steering engine holder 313 respectively, used for receiving the signal sent by the processing unit 20, sending the PWM control signal according to the received signal, and controlling the two-axis freedom steering engine holder 313 to rotate in the horizontal and / or vertical direction.

[0097] The MOS switch 316 is electrically connected with the processing unit 20 and the de-energized electromagnet 315 respectively.

[0098] Further, in an optional embodiment, a threading hole is formed on the fixed structure 312 for the electrical connection of the de-energized electromagnet 315 and the MOS switch 316.

[0099] In order to optimize the structure of the device 1, a threading hole is formed on the fixed structure 312 for the electrical connection of the de-energized electromagnet 315 and the MOS switch 316. Figure 4 In the above example, a threading hole 5 is formed on the fixed structure 312 for the electrical connection of the de-energized electromagnet 315 and the MOS switch 316.

[0100] Further, in an optional embodiment, the fixed structure 312 is made of aluminum.

[0101] Since the fixed structure 312 needs to fix many components and has high requirements for structural strength, aluminum can be used as the manufacturing material, and CNC (Computer Numerical Control) or other precision machining methods can be used for machining and manufacturing.

[0102] Further, in an optional embodiment, the spring constraint structure 318 is made of 3D printed plastic and is made by the 3D printing method of pre-embedded parts.

[0103] The spring constraint structure 318 is an important structure for restraining the spring 317 (if the dry powder fire extinguishing ball is ejected, the spring constraint structure 318 can be used to constrain the spring again for repeated use, but since it will be ejected together with the fire extinguishing ball when launched, its mass may directly affect the range of the dry powder fire extinguishing ball). The material of the spring constraint structure 318 can be 3D printed plastic. In order to enhance the constraint of the spring 317 and reduce the structural strength consumption caused by the daily constraint state, the spring constraint structure 318 can be attracted by the de-energized electromagnet 315 below. In the 3D printing process of the spring constraint structure 318, the pre-embedded metal sheet printing method can be used to achieve the printing-pause-put in metal sheet-continue printing. The spring constraint structure 318 can also be manufactured by metal inlay injection molding.

[0104] One example of the spring constraint structure 318 is shown as Figure 5 As shown, a metal sheet is placed at the position of b in the 3D printing process for attraction with the de-energized electromagnet 315. The spring 317 can be in contact with the suppression groove a of the spring constraint structure 318 from below to play a suppression role. Reinforcing ribs c and other structures can also be added to strengthen the structural strength of the spring constraint structure 318.

[0105] In actual application scenarios, the fire suppression device in the above embodiments and / or optional embodiments can be set to a cruising mode, and the cruising is performed by controlling the rotation of the gimbal in the horizontal direction. When the camera module and / or the infrared temperature sensor detects a flame, the flame position data is returned to the processing unit. After the processing unit compares and confirms the flame position data returned by the camera module and the infrared temperature sensor, the processing unit controls the execution unit to point to the fire point, and determines the distance of the fire point by the laser ranging module, determines the position of the fire point, and then calculates the launch angle of the dry powder fire extinguishing ball prepared by the fire suppression device. According to the launch angle, a control signal is sent to the execution unit to launch the dry powder fire extinguishing ball. When the dry powder fire extinguishing ball flies to the fire point, the powder point of the dry powder fire extinguishing ball ignites and explodes to release dry powder to extinguish the flame. The fire suppression device can also be set to fixedly point to a certain direction, and multiple fire suppression devices can be deployed in actual application environments.

[0106] Further, the fire suppression device in the above embodiments and / or optional embodiments can also include a buzzer, which can emit different buzzer sounds to issue warnings in the state of detecting a flame, confirming a fire point position, launching a dry powder fire extinguishing ball, etc.

[0107] The fire suppression device provided by the utility model has compact structure, adopts multi-dimensional flame detection function, can determine a fire point faster and more accurately, has high flame detection and positioning accuracy, can use a dry powder fire extinguishing ball as fire extinguishing medium, can extinguish various types of flames (such as A, B, C, E, F, etc.), compared with water and other fire extinguishing medium, can more easily and safely solve an electrically induced fire, has fast fire suppression response and low maintenance cost, and has high cost performance. Meanwhile, the dry powder fire extinguishing ball has smaller launch resistance as a whole, and can cover a larger area under the premise of timely discovery, confirmation and accurate trajectory calculation of a flame.

[0108] The fire suppression device provided by the utility model has stronger running independence, does not need to rely on external water supply, can be deployed and installed in an electric bicycle parking shed and other places where a water pipeline cannot be connected, and solves the fire safety problem thereof.

[0109] It should be noted that the above content and examples are only used to illustrate the technical solutions of the present application, and do not have any limiting effect on the present application. Those skilled in the art should understand that any form of equivalent replacement or modification of the technical solutions and technical contents disclosed in the present application, without departing from the technical solutions of the present application, is within the spirit and scope of the present application, and should be covered within the protection scope of the present application.

[0110] In addition, it is clear that the word "comprising" does not exclude that the circuit, device, apparatus involved in the present application can also include other components, units or modules, circuits, devices, and the singular does not exclude the plural. The plurality of components, units or modules, circuits stated in the claims can also be implemented by one component, unit or module, circuit. The words "first", "second" and the like are used to indicate names, and do not mean any particular order.

Claims

1. A fire suppression apparatus, characterized by, The device comprises: a detection unit, a processing unit and an execution unit, wherein the detection unit comprises at least an infrared temperature sensor, a camera module with flame recognition function and a laser ranging module, wherein the infrared temperature sensor and the camera module with flame recognition function are used to detect flames, and the laser ranging module is used to determine the ignition point, and the detection unit sends the detected signals to the processing unit; the processing unit is used to process the received signals and send signals to the laser ranging module and the execution unit according to the processing results; the execution unit is used to receive signals and execute fire suppression on the ignition point.

2. The apparatus of claim 1, wherein, The processing unit comprises: a processing circuit board comprising a microprocessor and an I2C bus hub.

3. The apparatus of claim 2, wherein, The model of the microprocessor comprises any one of the following: Raspberry Pi 4B; STM32F103.

4. The apparatus of claim 1, wherein, The model of the infrared temperature sensor is MLX90640.

5. The apparatus of claim 1, wherein, The camera module with flame recognition function comprises a K210 development board and a camera.

6. The apparatus of claim 1, wherein, The model of the laser ranging module is STP23.

7. The apparatus of claim 1, wherein, The execution unit comprises: a dry powder fire extinguishing ball and an ejection device, wherein the ejection device comprises a base, a fixed structural member, a two-axis degree of freedom servo gimbal, a servo drive module, a loss-of-power electromagnet, a MOS switch, a spring, a spring restraint structural member and an ejection barrel, wherein the base is fixedly connected with the fixed structural member; the fixed structural member is fixedly connected with the detection unit, the spring, the loss-of-power electromagnet, the two-axis degree of freedom servo gimbal and the ejection barrel respectively; the loss-of-power electromagnet is fixed at one end of the hollow part of the spring, and the other end of the spring contacts the dry powder fire extinguishing ball; the servo drive module is electrically connected with the processing unit and the two-axis degree of freedom servo gimbal respectively; the MOS switch is electrically connected with the processing unit and the loss-of-power electromagnet respectively.

8. The apparatus of claim 7, wherein, A threading hole is formed in the fixed structural member for electrical connection of the loss-of-power electromagnet and the MOS switch.

9. The apparatus of claim 7, wherein, The fixed structural member is made of aluminum.

10. The apparatus of claim 7, wherein, The spring restraint structural member is made of 3D printed plastic by a 3D printing method of pre-embedded parts.

Images