Fire extinguishing bomb, throwing control method, related equipment and unmanned aerial vehicle

Abstract

The invention relates to the field of fire extinguishing bomb related equipment, in particular to a fire extinguishing bomb, a throwing control method, related equipment and an unmanned aerial vehicle, the fire extinguishing bomb is conveyed to a fire extinguishing position by the unmanned aerial vehicle and detonated, and the fire extinguishing bomb comprises a barrel; the central pipe is arranged in the cylinder body, a material placing cavity is formed in the central pipe, and a detonation control line is led out of the central pipe; the controller is arranged in the barrel body and used for being connected with the unmanned aerial vehicle in a wired and / or wireless connection mode; and one end of the redundancy protection socket is connected with a control port of the detonation control line, and the other end of the redundancy protection socket is connected with an output port of the controller so as to connect or disconnect the control port and the detonation control line. The method has the effect of improving the safety and reliability of the whole life cycle of the fire extinguishing bomb.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of fire extinguishing bomb related equipment, and in particular to a fire extinguishing bomb, a launching control method, related equipment and a UAV. BACKGROUND

[0002] Forest fire prevention and control is a worldwide problem, especially for large-area fire sites with complex terrain and difficult for personnel to quickly reach, the efficient firefighting means is very limited. The unmanned aerial vehicle (UAV) with its excellent mobility and non-terrain limited delivery capability has become an important development direction in forest fire extinguishing equipment. Among them, the fire extinguishing method of UAV carrying fire extinguishing bomb for accurate throwing and air explosion is considered by the industry as one of the cutting-edge solutions to deal with major forest fires due to its fast response speed, wide coverage, and avoidance of personnel casualties. The related technology research and product innovation are active.

[0003] At present, the fire extinguishing bomb applied in this field mainly depends on two kinds of explosion control methods. One is fixed delay blasting, the fire extinguishing bomb is built-in fixed delay device, which requires the UAV to fly to a specific calculated height for launching to achieve rough position explosion. The second is fixed height blasting, this kind of fire extinguishing bomb usually needs to establish real-time data communication with the UAV, by obtaining the height information of the carrier and calculating the delay time required before landing in the bomb body, so as to realize the accurate fixed height air explosion. In addition, in order to improve safety, common fire extinguishing bombs are usually equipped with simple passive protection structures such as mechanical safety pins.

[0004] However, the above-mentioned prior art has obvious limitations in safety, adaptability and reliability. On the one hand, the fire extinguishing bomb faces many accidental triggering risks such as static electricity accumulation, electromagnetic interference, accidental impact or vibration during production, assembly, transportation, storage and mounting on the UAV standby stage. Only relying on a single measure such as mechanical safety pin, it is difficult to fully prevent accidental explosion, and there are significant safety hazards. On the other hand, its function implementation is severely dependent on the specific performance of the UAV, such as fixed height blasting which must rely on the real-time communication support of the UAV, while many industrial UAVs do not have such external communication interface, resulting in limited application platform range of high-performance fire extinguishing bomb and poor universality. Therefore, there is an urgent need for a fire extinguishing bomb solution with built-in active safety mechanism, which can adapt to various UAV platforms and provide all-round protection in the whole process, in order to improve its overall safety level and operational adaptability. SUMMARY

[0005] In order to solve one or more technical problems mentioned above, the present application provides a fire extinguishing bomb, a launching control method, related equipment and a UAV, in order to solve the above problems.

[0006] The fire extinguishing bomb, the launching control method, the related equipment and the UAV provided by the present application adopt the following technical solutions:

[0007] In a first aspect, the application provides a fire extinguishing bomb, which is delivered to a fire extinguishing position by a UAV and is detonated, and the fire extinguishing bomb further comprises:

[0008] a barrel;

[0009] a central pipe arranged inside the barrel, a material placing cavity is arranged in the central pipe, and a detonation control line is led out from the central pipe;

[0010] a controller arranged inside the barrel, which is connected to the UAV through wired and / or wireless connection;

[0011] a redundant protection socket, one end of which is connected to a control port of the detonation control line, and the other end is connected to an output port of the controller, so as to connect or cut off the connection between the control and the detonation control line.

[0012] In a possible manner, the detonation control line comprises a first control line and a second control line, and when the redundant protection socket is in a protection state, the first control line and the second control line are in a short-circuit connection state.

[0013] By adopting the above technical solution, the fire extinguishing bomb provided by the application has made significant progress in view of the defects of insufficient safety and adaptability of the fire extinguishing bomb in the prior art. First, the controller supports multiple connection modes such as wired and wireless connection, which breaks through the dependence of the fire extinguishing bomb on the communication interface of a specific type of UAV, so that it can be flexibly adapted to various UAV platforms from basic type to intelligent type, greatly improving the versatility and combat deployment flexibility of the equipment. Secondly, the redundant protection socket architecture forms an intrinsically safe design through the double insurance mechanism of physically isolating the control signal and short-circuit connecting the detonation line in the non-working state, effectively resisting the risk of accidental activation caused by static electricity accumulation, electromagnetic interference, mechanical vibration and accidental impact in the production, transportation, storage and standby stages. The integrated design scheme fundamentally improves the safety and reliability of the fire extinguishing bomb throughout its life cycle, while taking into account the functional implementation requirements in different application scenarios.

[0014] In a possible manner, the redundant protection socket comprises a three-pin female socket and a male head;

[0015] The three-pin female socket comprises a first pin, a second pin and a third pin;

[0016] The first pin is connected to any one of the first control line and the second control line, the third pin is connected to the other one of the first control line and the second control line, and the second pin is fixedly connected to the third pin;

[0017] The male head is connected to the output port of the controller at one end, and is used for being inserted into the three-pin female socket at the other end;

[0018] wherein, when the male head is not inserted, the first pin and the second pin are in automatic communication, causing the first control line and the third control line to be short-circuited, and when the male head is inserted, the first pin and the second pin are disconnected and form a path to the controller.

[0019] By adopting the technical scheme, the redundant protection socket adopts a three-pin female socket and a male head cooperation structure, and a double safety protection mechanism is realized through a clever electrical connection design. When the male head is not inserted, the automatic communication of the first pin and the second pin causes the two detonation control lines to be short-circuited, effectively reducing the potential difference of the detonation line to zero, and fundamentally eliminating the risk of misdetonation caused by static electricity accumulation, electromagnetic interference or accidental current leakage. When the male head is inserted, the mechanical structure drives the first pin and the second pin to be disconnected, and at the same time, a reliable path to the controller is established, ensuring that the system enters a normal working state. This hardware-level protection based on physical connection not only provides absolute safety guarantee during transportation and storage, but also solves the technical defects of response delay and insufficient reliability of traditional software and hardware protection schemes, significantly improving the intrinsic safety level of the fire extinguishing bomb in the whole life cycle.

[0020] One possible way is that the male head includes a first pin and a second pin;

[0021] When the male head is inserted into the three-pin female socket, the first pin is in contact with any one of the first pin and the third pin, and the second pin is in contact with the other one of the first pin and the third pin, thereby connecting the output port of the controller to the first pin and the third pin to form a detonation control loop.

[0022] By adopting the technical scheme, the male head structure forms a polarity-independent reliable connection when connected with the female socket through the specific layout of the first pin and the second pin: when the male head is inserted, the first pin automatically establishes contact with one of the first pin or the third pin, and the second pin forms a path with the remaining pin, thereby ensuring that the output signal of the controller can be loaded to both ends of the detonation control line without distinction. This symmetrical connection design not only eliminates the risk of system failure caused by incorrect insertion polarity, but also realizes the synchronous activation of the working loop and the control signal through physical interlocking, further enhancing the connection reliability of the system in complex electromagnetic environments. The design not only ensures easy operation, but also provides double redundancy protection for the establishment of the detonation control loop, significantly improving the anti-interference ability and operational reliability of the system in complex electromagnetic environments.

[0023] One possible way is that the first pin of the three-pin female socket is connected with an elastic metal sheet;

[0024] When the male head is not inserted, the elastic metal sheet is in contact with the second pin under the action of its own elastic force, connecting the first pin and the second pin;

[0025] When the male head is inserted, the elastic metal sheet is separated from the second pin under the action of the first pin or the second pin, thereby breaking the connection between the first pin and the second pin.

[0026] When the female seat is inserted, the first pin of the male head contacts the third pin of the female seat, and the second pin of the male head contacts the first pin of the female seat, thereby connecting the output port of the controller to the first and third pins of the female seat through the male head, forming an explosion control loop.

[0027] By adopting the above technical solution, the elastic metal sheet structure realizes automatic switching between the safe state and the working state through mechanical elastic force: when the male head is not inserted, the elastic metal sheet maintains reliable contact with the second pin by relying on its own elastic force, forming a stable short-circuit protection loop to ensure the absolute safety of the fire extinguishing bomb in the non-use state; when the male head is inserted, the mechanical pressure of the pin forces the elastic metal sheet to separate from the second pin, simultaneously completing the release of the short-circuit connection and the establishment of the control loop. This mechanical linkage design not only eliminates the risk of misoperation of the electronic switch, but also realizes millisecond-level response of the safety protection and working mode conversion, greatly improving the action reliability of the system in the emergency fire extinguishing scene. At the same time, through the specific contact cooperation of the male head pin and the female seat pin (the first pin connects the third pin, and the second pin connects the first pin), a complete explosion control loop is directly built at the moment of insertion, further optimizing the connection efficiency and anti-interference performance of the system.

[0028] In a second aspect, the embodiments of the present application provide a fire extinguishing bomb launching control method, which is used to control the fire extinguishing bomb as described in the first aspect, and determines the launching mode of the fire extinguishing bomb in the following manner:

[0029] Detection step: after system initialization, it is detected whether a communication connection is successfully established with an external device, and a currently set explosion height value is obtained;

[0030] Judgment step: it is judged whether the explosion height value is valid, wherein a valid explosion height value needs to be within a preset explosion height threshold range;

[0031] Execution step: according to the detection and judgment results, a corresponding explosion mode is selected and executed.

[0032] By adopting the technical scheme, the intelligent mode switching mechanism effectively solves the problem that the existing fire extinguishing bomb has a single function and cannot be flexibly adapted to different combat platforms. The method autonomously selects a fixed height explosion or a fixed delay explosion mode by detecting the communication connection state and parameter validity: when the communication is normal and the parameters are valid, the optimal fire extinguishing effect is achieved by acquiring height data in real time and accurately calculating the delay time based on an adaptive algorithm; when the communication is interrupted or the parameters are abnormal, the basic function is guaranteed by automatically downgrading to the fixed delay mode, which significantly improves the adaptability and task completion rate of the fire extinguishing bomb in complex battlefield environments. The method upgrades the traditional single-function fire extinguishing bomb to an intelligent controllable multi-mode combat unit, which greatly enhances the robustness and reliability of the system while ensuring the accuracy of the explosion.

[0033] One possible way is that if the communication connection is successful and the explosion height value is valid, the fixed height explosion mode is entered, which includes:

[0034] Acquiring the current height of the unmanned aerial vehicle in real time;

[0035] When the unhooking signal is received, the current height value is saved as the release height;

[0036] Based on the release height and the preset explosion height, the delay time of the detonation is automatically calculated by an adaptive calculation formula;

[0037] Starting the countdown and performing the fixed height explosion;

[0038] If the communication connection fails or the explosion height value is invalid, the fixed delay explosion mode is automatically switched to, which includes:

[0039] Starting the countdown according to the preset fixed delay time;

[0040] Performing the fixed delay explosion.

[0041] By adopting the technical scheme, the fixed height explosion mode acquires the height of the unmanned aerial vehicle in real time and locks the release height at the moment of unhooking, and dynamically generates accurate delay parameters based on an adaptive calculation formula, effectively solving the defect that the traditional fixed height explosion relies on continuous communication and achieving accurate control under single communication triggering. The fault-tolerant mechanism of automatically switching to the fixed delay explosion mode when communication fails or parameters are invalid ensures the basic combat capability of the fire extinguishing bomb in extreme working conditions through dual-mode redundancy. This intelligent mode switching strategy not only significantly improves the adaptability of the fire extinguishing bomb to different unmanned aerial vehicle platforms, but also realizes the unity of explosion accuracy and system reliability through software algorithm optimization.

[0042] One possible way is that the method further includes a safety judgment step:

[0043] In the fixed-height blasting mode, when the unhooking signal is received, if the obtained real-time release height is lower than the preset release height safety threshold, it is determined that the height is invalid, the system is forced to switch from the fixed-height blasting mode to the fixed-delay blasting mode, and a fixed delay countdown of no less than 1 second is started.

[0044] By adopting the above technical scheme, the safety determination step effectively solves the low-altitude detonation risk caused by the unmanned aerial vehicle ranging error, communication interference or operation error by monitoring the logical relationship between the release height and the preset safety threshold in real time. When the system detects that the real-time height is lower than the safety threshold, the mode forced switching mechanism is triggered immediately, and the system is seamlessly switched from the fixed-height blasting mode to the fixed-delay blasting mode, and a fixed delay countdown of no less than 1 second is started. This hierarchical safety strategy not only prevents the equipment damage or fire intensification caused by the detonation of the fire extinguishing bomb in the dangerous low-altitude state, but also guarantees the safe separation distance between the bomb body and the carrier through the preset minimum delay, thereby significantly improving the fault tolerance and overall reliability of the system in the complex combat environment. The design embodies the concept of software and hardware collaborative protection, and provides multiple safety protection for the intelligent fire extinguishing equipment.

[0045] In a third aspect, an embodiment of the present application provides a fire extinguishing bomb related device, which is applied to the fire extinguishing bomb of the first aspect, and comprises a radar range finder or a release device with communication function; the related device is connected with a serial communication interface of a controller of the fire extinguishing bomb, and is used to provide real-time height data for the fire extinguishing bomb, so that the fire extinguishing bomb executes the fixed-height blasting mode.

[0046] In a fourth aspect, an embodiment of the present application provides an unmanned aerial vehicle, which is applied to the fire extinguishing bomb of the first aspect, and is connected with a controller of the fire extinguishing bomb through wired and / or wireless communication connection, and is used to provide real-time height data for the fire extinguishing bomb, receive state information and transmit control instructions, so that the fire extinguishing bomb executes the fixed-height blasting mode.

[0047] In summary, the present application has at least one of the following beneficial technical effects:

[0048] 1. Addressing the shortcomings of existing fire extinguishing bombs in terms of safety and adaptability, significant progress has been made through multi-level technological innovation. Firstly, the controller supports multiple connection methods, including wired and wireless, breaking the dependence of the fire extinguishing bomb on specific UAV communication interfaces. This allows it to flexibly adapt to various UAV platforms, from basic to intelligent models, greatly improving the equipment's versatility and operational deployment flexibility. Secondly, the adopted redundant protection socket architecture, through a dual insurance mechanism of physical isolation of control signals and short-circuit connection of the detonation circuit in the non-operating state, forms an inherently safe design, effectively resisting the risks of accidental activation caused by static electricity accumulation, electromagnetic interference, mechanical vibration, and accidental impacts during production, transportation, storage, and standby phases. This integrated design fundamentally improves the safety and reliability of the fire extinguishing bomb throughout its entire lifecycle, while also considering the functional requirements of different application scenarios.

[0049] 2. The redundant protection socket adopts a three-pin female and male connector structure, achieving a dual safety protection mechanism through ingenious electrical connection design. When the male connector is not inserted, the automatic connection between the first and second pins creates a short circuit between the two detonation control lines, effectively reducing the potential difference of the detonation circuit to zero and fundamentally eliminating the risk of accidental detonation caused by static electricity accumulation, electromagnetic interference, or accidental current leakage. When the male connector is inserted, the mechanical structure drives the first and second pins to disconnect, simultaneously establishing a reliable path with the controller, ensuring the system enters normal operating condition. This hardware-level protection method based on physical connection not only provides absolute safety during transportation and storage but also solves the technical defects of traditional software and hardware protection schemes, such as response delay and insufficient reliability, significantly improving the intrinsic safety level of the fire extinguishing bomb throughout its entire life cycle.

[0050] 3. The male connector structure, through the specific layout of the first and second pins, forms a reliable connection independent of polarity when mating with the female connector: when the male connector is inserted, the first pin automatically makes contact with either the first or third pin, while the second pin forms a path with the remaining pins, thus ensuring that the controller's output signal can be uniformly applied to both ends of the detonation control line. This symmetrical connection design not only eliminates the risk of system failure due to incorrect insertion polarity but also achieves synchronous activation of the working circuit and control signal through physical interlocking, further enhancing the system's connection reliability in combat environments. This design, while ensuring ease of operation, provides dual redundancy for establishing the detonation control circuit, significantly improving the system's anti-interference capability and operational reliability in complex electromagnetic environments.

[0051] 4. The intelligent mode switching mechanism effectively solves the problem of single function of existing fire extinguishing bombs and inability to adapt to different combat platforms. The method detects the communication connection state and parameter validity, and autonomously selects the fixed height blasting or fixed delay blasting mode: when the communication is normal and the parameters are valid, the height data is obtained in real time and the delay time is accurately calculated based on the adaptive algorithm to achieve the optimal fire extinguishing effect; when the communication is interrupted or the parameters are abnormal, the system is automatically degraded to the fixed delay mode to ensure the basic function, which significantly improves the adaptability and task completion rate of the fire extinguishing bomb in complex battlefield environment. The method upgrades the traditional single-function fire extinguishing bomb to an intelligent controllable multi-mode combat unit, which greatly enhances the robustness and reliability of the system while ensuring the blasting accuracy. BRIEF DESCRIPTION OF DRAWINGS

[0052] Figure 1 is a structural schematic diagram of an embodiment of the present application;

[0053] Figure 2 is a structural schematic diagram of an embodiment of the present application embodying a three-pin female socket;

[0054] Figure 3 is a structural schematic diagram of an embodiment of the present application embodying a male head;

[0055] Figure 4 is a flowchart of a fire extinguishing bomb launching control method in an embodiment of the present application;

[0056] Figure 5 is a flowchart of a fire extinguishing bomb blasting mode in an embodiment of the present application;

[0057] Figure 6 is a flowchart of a fire extinguishing bomb fixed height blasting mode in an embodiment of the present application;

[0058] Figure 7 is a flowchart of a fire extinguishing bomb fixed delay blasting mode in an embodiment of the present application.

[0059] BRIEF DESCRIPTION OF DRAWINGS

[0060] 1. barrel;

[0061] 2. center tube; 21, detonation control line; 211, first control line; 212, second control line;

[0062] 3. controller;

[0063] 4. redundant protection socket; 41, three-pin female socket; 411, first pin; 412, second pin; 413, third pin; 414, elastic metal sheet; 42, male head; 421, first pin; 422, second pin. DETAILED DESCRIPTION

[0064] For the purposes of making the objectives, technical solutions and advantages of the embodiments of the present application clearer, the following will combine the drawings of the embodiments of the present application to make a clear and complete description of the technical solutions of the embodiments of the present application. Figure 1 - the drawings Figure 7 , the technical solutions of the embodiments of the present application are described clearly and completely.

[0065] The embodiments of the present application disclose a fire extinguishing bomb, a launching control method, related equipment and a UAV.

[0066] With reference to Figure 1 , Figure 2 and Figure 3 , in a first aspect, the present application provides a fire extinguishing bomb, which is delivered to a fire extinguishing position by a UAV and is detonated, and the fire extinguishing bomb further comprises: a barrel 1; a central pipe 2 which is arranged inside the barrel 1, and the central pipe 2 is provided with a material placing cavity and a detonation control line 21 is led out; a controller 3 which is arranged inside the barrel 1 and is used for being connected with the UAV in a wired and / or wireless connection mode; a redundant protection socket 4 which is connected with a control port of the detonation control line 21 at one end and is connected with an output port of the controller 3 at the other end, so as to connect or cut off the connection between the control and the detonation control line 21.

[0067] One possible way is that the detonation control line 21 comprises a first control line 211 and a second control line 212, and the first control line 211 and the second control line 212 are in a short-circuit connection state when the redundant protection socket is in a protection state.

[0068] By adopting the above technical solution, the fire extinguishing bomb provided by the present application has made significant progress through multi-level technical innovation in view of the defects of insufficient safety and adaptability of the fire extinguishing bomb in the prior art. First, the controller 3 supports multiple connection modes of wired and wireless, which breaks through the dependence of the fire extinguishing bomb on the communication interface of a specific type of UAV, so that it can be flexibly adapted to multiple UAV platforms from basic to intelligent, greatly improving the versatility and combat deployment flexibility of the equipment. Secondly, the redundant protection socket 4 architecture adopted forms an intrinsically safe design through the double insurance mechanism of physically isolating the control signal and short-circuiting the connection of the detonation line in the non-working state, effectively resisting the risk of accidental activation caused by static electricity accumulation, electromagnetic interference, mechanical vibration and accidental impact in the production, transportation, storage and standby stages. This integrated design fundamentally improves the safety and reliability of the fire extinguishing bomb throughout its life cycle, while taking into account the functional implementation requirements in different application scenarios.

[0069] One possible way is that the redundant protection socket 4 comprises a three-pin female socket 41 and a male head 42.

[0070] The three-pin female socket 41 comprises: a first pin 411, a second pin 412 and a third pin 413.

[0071] The first pin 411 is connected with any one of the first control line 211 and the second control line 212, the third pin 413 is connected with the other one of the first control line 211 and the second control line 212, and the second pin 412 is fixedly connected with the third pin 413;

[0072] The male head 42 is connected with an output port of the controller 3 at one end and is used for being inserted into the three-pin female socket 41 at the other end;

[0073] When the male head 42 is not inserted, the first pin 411 is automatically connected with the second pin 412, so that the first control line 211 and the third control line are short-circuited, and when the male head 42 is inserted, the first pin 411 is disconnected with the second pin 412 and forms a passage with the controller 3.

[0074] By adopting the technical scheme, the redundant protection socket 4 adopts the cooperation structure of the three-pin female socket 41 and the male head 42, and realizes the double safety protection mechanism through the ingenious electrical connection design. When the male head 42 is not inserted, the automatic connection of the first pin 411 and the second pin 412 forms a short-circuit connection of the two detonation control lines 21, effectively reduces the potential difference of the detonation line to zero, and fundamentally eliminates the risk of misdetonation caused by static accumulation, electromagnetic interference or accidental current leakage. When the male head 42 is inserted, the mechanical structure drives the first pin 411 and the second pin 412 to be disconnected, and at the same time, a reliable passage with the controller 3 is established, so as to ensure that the system enters a normal working state. This hardware-level protection mode based on physical connection not only provides absolute safety guarantee in the transportation and storage stage, but also solves the technical defects of response delay and insufficient reliability of the traditional software and hardware protection scheme, and significantly improves the intrinsic safety level of the fire extinguishing bomb in the whole life cycle.

[0075] One possible way is that the male head 42 includes a first pin 421 and a second pin 422;

[0076] When the male head 42 is inserted into the three-pin female socket 41, the first pin 421 is in contact with any one of the first pin 411 and the third pin 413, and the second pin 422 is in contact with the other one of the first pin 411 and the third pin 413, so as to connect the output port of the controller 3 to the first pin 411 and the third pin 413 and form a detonation control loop.

[0077] By adopting the above technical solution, the male head 42 structure forms a reliable connection regardless of polarity when it is connected with the female seat through the specific layout of the first and second pins 421 and 422: when the male head 42 is inserted, the first pin 421 automatically establishes contact with one of the first and third pins 411 and 413, while the second pin 422 forms a path with the remaining pin, thereby ensuring that the output signal of the controller 3 can be loaded to both ends of the detonation control line 21 without distinction. This symmetrical connection design not only eliminates the risk of system failure caused by incorrect plug-in polarity, but also achieves the synchronous activation of the working circuit and the control signal through physical interlocking, further enhancing the connection reliability of the system in the actual combat environment. This design not only ensures easy operation, but also provides double redundancy protection for the establishment of the detonation control circuit, significantly improving the anti-interference ability and operational reliability of the system in complex electromagnetic environments.

[0078] One possible way is that the first pin 411 of the three-pin female seat 41 is connected with a flexible metal sheet 414;

[0079] When the male head 42 is not inserted, the flexible metal sheet 414 maintains contact with the second pin 412 under the action of its own elasticity, connecting the first pin 411 with the second pin 412;

[0080] When the male head 42 is inserted, the flexible metal sheet 414 is separated from the second pin 412 under the action of the first or second pin 421 or 422, thereby disconnecting the first pin 411 from the second pin 412.

[0081] Wherein, when the female seat is inserted, the first pin 421 of the male head 42 contacts the third pin 413 of the female seat, and the second pin 422 of the male head 42 contacts the first pin 411 of the female seat, thereby connecting the output port of the controller 3 to the first and third pins 413 of the female seat through the male head 42, forming a detonation control circuit.

[0082] By adopting the technical scheme, the elastic metal sheet 414 realizes automatic switching between the safe state and the working state through mechanical elasticity: when the male head 42 is not inserted, the elastic metal sheet 414 keeps reliable contact with the second pin 412 by relying on its own elasticity, forms a stable short-circuit protection loop, and ensures absolute safety of the fire extinguishing bomb in a non-use state; when the male head 42 is inserted, the mechanical pressure of the pin forces the elastic metal sheet 414 to separate from the second pin 412, and simultaneously completes the release of the short-circuit connection and the establishment of the control loop. This mechanical linkage design not only eliminates the risk of misoperation of the electronic switch, but also realizes millisecond-level response of the safety protection and working mode conversion, greatly improving the action reliability of the system in the emergency fire extinguishing scene. At the same time, through the specific contact cooperation of the male head 42 pin and the female seat pin (the first pin 421 connects the third pin 413, and the second pin 422 connects the first pin 411), a complete detonation control loop is directly built at the moment of insertion, further optimizing the connection efficiency and anti-interference performance of the system.

[0083] In a second aspect, the embodiments of the present application provide a fire extinguishing bomb launching control method.

[0084] With reference to Figure 4 The above method is used for controlling the fire extinguishing bomb as in the first aspect, and the launching mode of the fire extinguishing bomb is determined in the following manner:

[0085] S10: detection step: after system initialization, whether a communication connection is successfully established with an external device is detected, and a current set explosion height value is obtained.

[0086] In the embodiments provided in the present application, the external device includes a UAV control system or an externally-mounted distance measuring module that establishes a communication connection with the controller 3 of the fire extinguishing bomb. If the communication connection is successful, the controller 3 receives the height parameter transmitted in real time by the external device through a serial communication interface (such as UART, CAN or a wireless module); if the communication connection fails, a preset default explosion height value stored in the controller 3 is called, and the value can be set in advance locally through a man-machine interface (such as a key and a digital tube combination) and stored in a non-volatile memory.

[0087] S20: judgment step: judging whether the explosion height value is valid, wherein the valid explosion height value needs to be within a preset explosion height threshold range;

[0088] In the embodiments provided in the present application, the explosion height value in the present application is preferably 30-50 meters.

[0089] S30: execution step: according to the detection and judgment results, a corresponding explosion mode is selected and executed.

[0090] The intelligent mode switching mechanism effectively solves the problem of single function of existing fire extinguishing bombs and inability to adapt to different combat platforms. By detecting the communication connection state and parameter validity, the high fixed blasting or delay blasting mode is selected: when the communication is normal and the parameter is valid, the height data is obtained in real time and the delay time is accurately calculated based on the adaptive algorithm to realize the optimal fire extinguishing effect; when the communication is interrupted or the parameter is abnormal, the delay mode is automatically degraded to ensure the basic function, which significantly improves the adaptability and task completion rate of the fire extinguishing bomb in complex battlefield environment. The method upgrades the traditional single-function fire extinguishing bomb to an intelligent controllable multi-mode combat unit, which greatly enhances the robustness and reliability of the system while ensuring the blasting accuracy.

[0091] With reference to Figure 5 , the fire extinguishing bomb selects the blasting mode as follows:

[0092] S301: If the communication connection is successful and the blasting height value is valid, enter the high fixed blasting mode.

[0093] With reference to Figure 6 , the fire extinguishing bomb executes the high fixed blasting mode as follows:

[0094] S3011: Real-time acquisition of the current height of the unmanned aerial vehicle;

[0095] S3012: When the unhooking signal is received, save the current height value as the release height;

[0096] S3013: Based on the release height and the preset blasting height, automatically calculate the detonation delay time through the adaptive calculation formula;

[0097] S3014: Start the countdown and execute the high fixed blasting.

[0098] The high fixed blasting mode acquires the height of the unmanned aerial vehicle in real time and locks the release height at the unhooking moment, and dynamically generates accurate delay parameters through the adaptive calculation formula, effectively solving the defect of traditional high fixed blasting relying on continuous communication, and realizing accurate control under single communication triggering.

[0099] S302: If the communication connection fails or the blasting height value is invalid, automatically switch to the delay blasting mode.

[0100] With reference to Figure 7 , the fire extinguishing bomb executes the delay blasting mode as follows:

[0101] S3021: Start the countdown according to the preset fixed delay time;

[0102] S3022: Execute the delay blasting.

[0103] The fault-tolerant mechanism of automatically switching to the fixed delay blasting mode when communication fails or parameters are invalid ensures the basic combat capability of the fire extinguishing bomb under extreme working conditions through double-mode redundancy guarantee. This intelligent mode switching strategy not only significantly improves the adaptability of the fire extinguishing bomb to different unmanned aerial vehicle platforms, but also realizes the unification of blasting precision and system reliability through software algorithm optimization.

[0104] One possible way is that the method further includes a safety determination step:

[0105] In the fixed height blasting mode, when the unhooking signal is received, if the obtained real-time dropping height is lower than the preset dropping height safety threshold, it is determined that the height is invalid, the system is forced to switch from the fixed height blasting mode to the fixed delay blasting mode, and a fixed delay countdown of no less than 1 second is started.

[0106] In the embodiments provided in the application, the safety determination step effectively solves the low-altitude detonation risk caused by unmanned aerial vehicle ranging errors, communication interference or operation errors by monitoring the logical relationship between the real-time dropping height and the preset safety threshold. When the system detects that the real-time height is lower than the safety threshold, the mode forced switching mechanism is triggered immediately, seamlessly switching from the fixed height blasting mode to the fixed delay blasting mode, and starting a fixed delay countdown of no less than 1 second. This hierarchical safety strategy not only prevents the device damage or fire intensification caused by the detonation of the fire extinguishing bomb at a dangerous low altitude, but also guarantees the safe separation distance between the bomb body and the carrier through the preset minimum delay, significantly improving the fault tolerance and overall reliability of the system in complex combat environments. The design embodies the concept of software and hardware collaborative protection, providing multiple safety guarantees for intelligent fire extinguishing equipment.

[0107] In a third aspect, the embodiments of the present application provide a related device for a fire extinguishing bomb, the related device being applied to the fire extinguishing bomb of the first aspect, and the related device comprising a radar range finder or a dropper with communication function; the device is connected with a serial communication interface of a controller 3 of the fire extinguishing bomb, and is used to provide real-time height data to the fire extinguishing bomb, so that the fire extinguishing bomb executes the fixed height blasting mode.

[0108] In a fourth aspect, the embodiments of the present application provide an unmanned aerial vehicle, the unmanned aerial vehicle being applied to the fire extinguishing bomb of the first aspect, and the unmanned aerial vehicle and the controller 3 of the fire extinguishing bomb establishing wired and / or wireless communication connection, and being used to provide real-time height data to the fire extinguishing bomb, receive state information and transmit control instructions, so that the fire extinguishing bomb executes the fixed height blasting mode.

[0109] The above described embodiments of the application have been described. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims can be performed in a different order and still accomplish desirable results. Additionally, the processes depicted in the accompanying figures do not necessarily require the particular order shown or sequential order in order to achieve the desired results. In some implementations, multitasking and parallel processing can be advantageous.

[0110] In the description of embodiments of the application reference has been made to descriptive terms, such as, "one embodiment", "some embodiments", "an example", "a specific example" or "some examples" etc. which are intended to mean that a particular feature, structure, material or characteristic being described is included in at least one embodiment or example of the application. Such appearances of such terms in various places in the specification are not necessarily intended to be referring to the same embodiment or example of the application. Furthermore, where a particular feature, structure, material or characteristic is described in connection with an embodiment or example, it will be generally understood that this feature, structure, material or characteristic can be included in any other embodiment or example, whether or not it is mentioned in connection with that particular embodiment or example. Additionally, the description can use perspective-based terminology in connection with the various described structures. Such terminology can be understood to encompass the various possible viewing angles relating to a particular structure, such that a structure that is described from one viewing angle can also be understood to include a corresponding structure that is described from another viewing angle.

[0111] Furthermore, the terms "first", "second", and the like, do not necessarily denote any ordinal, chronological or other temporally-defined relation. It is possible that, in accordance with the embodiments of the present application, a structure or a feature referred to as "first" can be implemented before a structure or a feature referred to as "second". Furthermore, the terms "first", "second", etc. are used only for descriptive purposes and do not have to be taken in a literal sense. Thus, features labeled with "first", "second", etc. can include, explicitly or implicitly, at least one of such features. In the description of embodiments of the application, the term "plurality" means at least two, such as two, three, etc., unless explicitly specified otherwise.

[0112] Any process or method described in a flowchart or otherwise described herein can be understood as representing a module, segment, or portion of code that includes one or more executable instructions for implementing the specified logical functions or steps, and the various embodiments of the application include additional or fewer processes, steps, or portions of code. The application embodiments can also be embodied in computer-readable code on a computer-readable medium for execution by or to control the operation of a computer, or computer module. The program code can comprise one or more instructions that, when executed by a computer, carry out the steps, processes or procedures described herein. The program code can be stored in a computer-readable medium, which can be any medium, including a storage device or memory, readable by a computer.

[0113] Depending on the context, the word "if' can be interpreted to mean "when" or "upon" or "in response to determining" or "in response to detecting", as the context dictates. Similarly, the phrase "if it is determined" or "if a detected (recited condition or event)" can be interpreted to mean "upon determining" or "in response to determining" or "upon detecting (the recited condition or event)" or "in response to detecting (the recited condition or event)", as the context dictates.

[0114] It should be noted that the terminal involved in the embodiments of the present application can include, but is not limited to, a personal computer (PC), a personal digital assistant (PDA), a wireless handheld device, a tablet computer, a mobile phone, an MP3 player, an MP4 player, and the like.

[0115] In several embodiments provided by the embodiments of the present application, it should be understood that the disclosed system, device and method can be implemented by other ways. For example, the device embodiments described above are only schematic, and for example, the division of the units is only a logical function division, and there can be another division manner in actual implementation, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interface, device or unit, and can be electrical, mechanical or other forms.

[0116] In addition, each function unit in each embodiment of the embodiments of the present application can be integrated into a processing unit, or each unit can exist alone physically, or two or more units can be integrated into one unit. The integrated unit can be realized in the form of hardware, or in the form of hardware plus software function unit.

[0117] The integrated unit realized in the form of software function unit can be stored in a computer readable storage medium. The software function unit stored in the storage medium includes a plurality of instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute part of the steps of the method of each embodiment of the embodiments of the present application. The storage medium mentioned above includes a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various media that can store program codes.

[0118] The above is only the preferred embodiment of the embodiments of the present application, and is not used to limit the embodiments of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the embodiments of the present application shall be included in the protection scope of the embodiments of the present application.

[0119] In the description of the application, it should be understood that the terms "vertical", "horizontal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, only for the purpose of facilitating the description of the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the application.

Claims

1. A fire extinguishing bomb, wherein the fire extinguishing bomb is delivered to the fire location by a drone and detonated, characterized in that, The fire extinguishing bomb also includes: cylindrical body; A central tube is placed inside the cylinder, and a material placement cavity is provided inside the central tube and an ignition control line is led out from it. A controller, located inside the cylinder, is used to connect to the drone via a wired and / or wireless connection. A redundant protection socket is provided, with one end connected to the control port of the detonation control line and the other end connected to the output port of the controller, so as to connect or disconnect the connection between the controller and the detonation control line.

2. The fire extinguishing bomb according to claim 1, characterized in that, The detonation control line includes a first control line and a second control line, and when the honor protection socket is in the protected state, the first control line and the second control line are short-circuited.

3. The fire extinguishing bomb according to claim 2, characterized in that, The redundant protection socket includes a three-pin female connector and a male connector; The three-pin female connector includes: a first pin, a second pin, and a third pin; The first pin is connected to either the first control line or the second control line, and the third pin is connected to the other of the first control line and the second control line. The second pin and the third pin are fixedly connected. One end of the male connector is connected to the output port of the controller, and the other end is used to insert into the three-pin female connector; When the male connector is not inserted, the first pin and the second pin are automatically connected, short-circuiting the first control line and the third control line. When the male connector is inserted, the first pin and the second pin are disconnected, forming a path with the controller.

4. The fire extinguishing bomb according to claim 3, characterized in that, The male connector includes a first pin and a second pin; When the male connector is inserted into the three-pin female connector, the first pin contacts either the first pin or the third pin, and the second pin contacts the other of the first pin and the third pin, thereby connecting the controller's output port to the first pin and the third pin to form a detonation control loop.

5. The fire extinguishing bomb according to claim 4, characterized in that, The first pin of the three-pin female connector is connected to a flexible metal sheet; When the male connector is not inserted, the elastic metal sheet remains in contact with the second pin under its own elastic force, so that the first pin is connected to the second pin; When the male connector is inserted, the elastic metal strip disengages from the second pin under the action of the first or second pin, thereby breaking the connection between the first and second pins. When the female connector is inserted, the first pin of the male connector contacts the third pin of the female connector, and the second pin of the male connector contacts the first pin of the female connector, thereby connecting the output port of the controller to the first and third pins of the female connector via the male connector, forming an ignition control circuit.

6. A method for controlling the deployment of fire extinguishing bombs, characterized in that, The method is used to control the fire extinguishing bomb according to any one of claims 1 to 5, and the method of releasing the fire extinguishing bomb is determined in the following manner: Detection steps: After system initialization, check whether a communication connection has been successfully established with external devices and obtain the currently set blasting height value; Judgment step: Determine whether the blasting height value is valid, wherein a valid blasting height value must be within the preset blasting height threshold range; Execution steps: Based on the detection and judgment results, select and execute the corresponding blasting mode.

7. The method for controlling the deployment of fire extinguishing bombs according to claim 6, Its features are, in, If the communication connection is successful and the blasting height value is valid, the system enters the fixed-height blasting mode, which includes: Get the drone's current altitude in real time; When a release signal is received, the current height value is saved as the deployment height; Based on the aforementioned deployment height and the preset blasting height, the detonation delay time is automatically calculated using an adaptive calculation formula; Start the countdown and execute the fixed-height blast; If the communication connection fails or the blasting height value is invalid, the system will automatically switch to the time-delay blasting mode, which includes: The countdown begins based on a preset fixed delay time; Perform a time-delayed blast.

8. The method for controlling the deployment of fire extinguishing bombs according to claim 7, characterized in that, The method also includes a security determination step: In the fixed-height blasting mode, when a decoupling signal is received, if the real-time delivery height is lower than the preset delivery height safety threshold, the height is determined to be invalid, and the system forcibly switches from the fixed-height blasting mode to the fixed-delay blasting mode and starts a fixed delay countdown of not less than 1 second.

9. A fire extinguishing bomb-related device, characterized in that, The related equipment is applied to the fire extinguishing projectile according to any one of claims 1 to 5. The related equipment includes a radar rangefinder or a dispenser with communication function. The related equipment is connected to the serial communication interface of the controller of the fire extinguishing projectile to provide real-time altitude data to the fire extinguishing projectile so that the fire extinguishing projectile can perform a fixed-altitude blasting mode.

10. A drone, characterized in that, The drone is used in the fire extinguishing bomb according to any one of claims 1 to 5. The drone establishes a wired and / or wireless communication connection with the controller of the fire extinguishing bomb to provide real-time altitude data to the fire extinguishing bomb, receive status information and transmit control commands so that the fire extinguishing bomb performs a fixed-altitude blasting mode.

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