Airborne digital precise delay control fire extinguishing bomb system and use method

Abstract

The invention discloses an airborne digital precise delay control fire extinguishing bomb system which comprises an airborne control box and a fire extinguishing bomb. The airborne control box is electrically connected with the fire extinguishing bomb; the fire extinguishing bomb is electrically connected with a delay control module, and the delay control module is used for controlling the fire extinguishing bomb to realize digital precise explosion control; an explosive unit is arranged in the center inside the fire extinguishing bomb, an ignition head is arranged on one side of the explosive unit, part of the ignition head is inserted into the explosive unit, and the ignition head is electrically connected with the delay control module; according to the invention, by arranging the delay control module, the explosion time is accurately controlled, the precision can reach 1 millisecond, and by arranging a safety catch mechanism, the safety, high reliability and high safety of personnel and the unmanned aerial vehicle are guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of fire extinguishing bomb control, and more specifically, to an airborne digital precise time-delay control fire extinguishing bomb system. Background Art

[0002] Forest and grassland fires not only seriously damage forest resources and the ecological environment, but also cause great harm to people's lives and property and public safety, and pose a huge threat to the sustainable development of the national economy and ecological livability. Therefore, early monitoring is particularly important for preventing forest and grassland fires, and how to quickly and efficiently extinguish early fire sources has become a difficulty. At present, domestic forest and grassland fire extinguishing products mainly use technologies such as hand throwing, single-tube rocket launcher firing, mortar gun firing and machine-mounted throwing. In actual application, they have poor maneuverability and low fire extinguishing efficiency, especially when the fire extinguishing bomb fails to trigger, it becomes a safety hazard, which is easy to injure follow-up firefighting personnel, and it is difficult to accurately control the explosion delay time during the throwing process, affecting the fire extinguishing effect. Summary of the invention

[0003] In order to solve at least one of the above technical problems, the present invention proposes an airborne digital precision delay control fire extinguishing bomb system and a use method.

[0004] A first aspect of the present invention provides an airborne digital precision time-delay controlled fire extinguishing bomb system, comprising: an airborne control box and a fire extinguishing bomb;

[0005] The onboard control box is electrically connected to the fire extinguishing bomb;

[0006] The onboard control box is electrically connected to the delay control module inside the fire extinguishing bomb, and the delay control module is used to control the ignition head so that the fire extinguishing bomb can achieve digital and precise control of explosion;

[0007] An explosive unit and an ignition head are arranged at the center of the fire extinguishing bomb. The explosive unit is excited by the ignition head part, and as the only excitation source, the ignition head part is inserted into the explosive unit, and the ignition head is electrically connected to the delay control module.

[0008] In a preferred embodiment of the present invention, two plug-in interfaces are arranged in parallel on one side of the delay control module, and the onboard control box can be electrically connected to the two plug-in interfaces.

[0009] In a preferred embodiment of the present invention, the onboard control box is installed under a body frame of an unmanned aerial vehicle or a manned aircraft or suspended at a high altitude, and two physical connection lines are arranged under the body frame, and the plug-in interface includes a first plug-in connector and a second plug-in connector, wherein one physical connection line is connected to the first plug-in connector, and the other physical connection line is connected to the second plug-in connector.

[0010] In a preferred embodiment of the present invention, a short-circuit connection structure is provided inside the second plug-in connector. After the second plug-in connector is inserted, two connection points of the ignition head of the delay control module are short-circuited or a large resistor is connected in series between the two connection points, so that the ignition head cannot ignite. The second plug-in connector acts as a safety bolt to ensure that it cannot ignite after insertion.

[0011] In a preferred embodiment of the present invention, a physical user interface is provided on one side of the onboard control box, and the physical user interface includes a switch, a button and a screen.

[0012] In a preferred embodiment of the present invention, the onboard control box communicates with the drone via a serial port, thereby achieving real-time binding and control in the air.

[0013] In a preferred embodiment of the present invention, one side of the onboard control box is connected to a power supply, and the power supply is an independent battery power supply or an external power supply provided by the drone.

[0014] The second aspect of the present invention provides a method for using an airborne digital precision time-delay control fire extinguishing bomb, which is applied to an airborne digital precision time-delay control fire extinguishing bomb system, comprising the following steps:

[0015] Insert the two plug connectors connected to the control box into the two plug-in interfaces above the fire extinguisher bomb body, and put the fire extinguisher bomb into the bomb bay of the drone or hang it on the hook of the drone;

[0016] Based on the communication with the fire extinguishing bomb, the control box determines the electrical connection status with the fire extinguishing bomb, the status of whether the safety pin is inserted or not, and the real-time working status and parameter setting information of the fire extinguishing bomb;

[0017] Based on the bombing altitude, set the time parameters of the delay control module before takeoff. The time parameters are based on the bombing altitude minus the airburst altitude (generally about 2 meters above the ground), and calculate the free fall time value with an accuracy better than 0.1 second. After everything is set, control the takeoff and prepare for bombing;

[0018] After takeoff, the drone is controlled to move along the warning trajectory to directly above the fire source and fly to the predetermined designated height. Finally, the bomb bay or the unhooking mechanism is opened to release the fire extinguishing bomb. After the fire extinguishing bomb is off the line, the delay timer starts. When the time is up, it is generally exploded in the air at a height of about 2 meters above the ground to extinguish the fire.

[0019] In a preferred embodiment of the present invention, the delayed explosion time of the fire extinguishing bomb is set on the time setting interface of the control box based on the bombing height of the drone, and the fire extinguishing bomb is controlled to be dropped, specifically including:

[0020] Based on the fire situation, choose the appropriate drone bombing altitude;

[0021] Based on the bomb dropping height of the drone plus the air explosion height of about 2 meters, the delay control detonation time is calculated using the free fall height. The appropriate delay control time is set through the user interface or real-time communication with the drone so that the fire extinguishing bomb is about 2 meters before landing, and the delay control fire extinguishing bomb explodes and extinguishes the fire.

[0022] The above technical solution of the present invention has the following advantages compared with the prior art:

[0023] This application sets a delay control module to accurately control the explosion time, achieve air explosion above fire, and have a good fire extinguishing effect with an accuracy of up to 1 millisecond. It is safer by setting a safety pin mechanism and digital control method, and is not prone to accidental explosion caused by misoperation, thus ensuring the safety of personnel and drones, with high reliability and high security. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, some of the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 1 is a schematic diagram of the overall framework of an airborne digital precision time-delay control fire extinguishing bomb system according to an embodiment of the present invention;

[0026] Figure 2 This is a schematic diagram of the connection between the plug-in interface, control box, and drone of the airborne digital precision time-delay control fire extinguishing bomb system according to an embodiment of the present invention;

[0027] Figure 3 The present invention discloses a table showing the relationship between the free fall height, free fall time and the predetermined bombing height of the fire extinguishing bomb in the airborne digital precise time-delay control fire extinguishing bomb system. DETAILED DESCRIPTION

[0028] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with specific embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0030] Embodiment 1

[0031] See also Figure 1-Figure 3 As shown, the present invention proposes an airborne digital precision delay control fire extinguishing bomb system, comprising: an airborne control box and a fire extinguishing bomb; the airborne control box is electrically connected to the fire extinguishing bomb; the airborne control box is electrically connected to a delay control module inside the fire extinguishing bomb, and the delay control module is used to control the ignition head so that the fire extinguishing bomb can achieve digital precision control explosion;

[0032] An explosive unit and an ignition head are arranged at the center of the fire extinguishing bomb. The explosive unit is ignited by the ignition head part, and as the only excitation source, the ignition head part is inserted into the explosive unit. The ignition head is electrically connected to the delay control module. There is no power supply unit on the fire extinguishing bomb, which further improves the safety of use.

[0033] Specifically, the fire extinguishing bomb system in the present application is used for early-stage forest / grassland fires or for emergency rescue personnel at fire scenes to open survival routes or other fire extinguishing applications, and has a wide range of application scenarios.

[0034] According to an embodiment of the present invention, the airborne control box is installed under a body frame of an unmanned aerial vehicle or a manned aircraft or suspended at a high altitude, and two physical connection lines are arranged under the body frame, and the plug-in interface includes a first plug-in connector and a second plug-in connector, wherein one physical connection line is connected to the first plug-in connector, and the other physical connection line is connected to the second plug-in connector.

[0035] Specifically, the two physical connection lines provide the function of pulling out the plug connector when the fire extinguishing bomb falls, so that the electrical connection lines of the two plug connectors will not be subjected to excessive tension during repeated throwing operations, thereby improving the durability of the overall system.

[0036] Specifically, the first plug connector is a CD plug, the second plug connector is a headphone plug, one physical connection line is connected to the DC plug, and the other physical connection line is connected to the headphone plug.

[0037] In a preferred embodiment of the present invention, a short-circuit connection structure is provided inside the second plug-in connector. After the second plug-in connector is inserted, two connection points of the ignition head of the delay control module are short-circuited or a large resistor is connected in series between the two connection points, so that the ignition head cannot ignite. The second plug-in connector acts as a safety bolt to ensure that it cannot ignite after insertion.

[0038] It should be noted that two plug-in interfaces are arranged in parallel on one side of the delay control module. The onboard control box can be electrically connected to the two plug-in interfaces through a two-wire power cord or a two-wire communication cord. The two-wire power cord or the two-wire communication cord is used for detection, power supply, charging, high voltage application, delay setting and other operations of the delay control module.

[0039] Specifically, the first plug connector adopts a two-wire connection, and provides power and communication functions for the delay control module of the fire extinguishing bomb. The second plug connector adopts a single-wire or multi-wire connection, and provides a function of sensing whether the second plug connector is inserted into the delay control module.

[0040] Specifically, it also includes bomb controller, bomb controller, and precise time control of fire extinguishing bombs;

[0041] Main features of bomb controller:

[0042] Easy and fast operation, setting time, high precision, convenient for fast and continuous operation.

[0043] Intrinsically safe: During the ground operation phase, personnel are close to the system and low-voltage communication and control are used, which does not reach the ignition voltage, thus fundamentally ensuring the safety of personnel.

[0044] The controller integrates attitude sensor, heading sensor, and air pressure altitude sensor to ensure the safety of bombing. It also integrates multiple communication methods such as Bluetooth / 4G, which is intuitive and convenient.

[0045] Furthermore, by using an onboard digital precise time-delay control system to set up a fire-extinguishing bomb, the operation is simple and fast, and the UAV can perform multiple operations with a short loading time each time.

[0046] According to an embodiment of the present invention, one side of the onboard control box is connected to a power supply, and the power supply is an independent battery power supply or an external power supply provided by the drone.

[0047] Specifically, the functions of the onboard control box are as follows: the onboard control box has nine-axis attitude detection; the air pressure altitude sensor obtains altitude information to ensure that there is no detonation on the ground; Bluetooth communication provides a complex setting interface for mobile phones, and one onboard control box has 2-4 fire extinguisher bomb controls; GPS obtains positioning information; 4G networking function, authorized detonation, detonation record upload and other functions.

[0048] According to an embodiment of the present invention, the onboard control box communicates with the drone via a serial port, thereby achieving real-time binding and control in the air.

[0049] According to an embodiment of the present invention, a physical user interface is provided on one side of the onboard control box.

[0050] Specifically, two delay setting / controlled detonation modes are realized by setting the drone serial port communication or physical user interface operation.

[0051] Specifically, the control box is installed and fixed on the drone, and the two connecting wires connected to the fire extinguishing bomb are connected, one is responsible for power supply and communication, and the other is responsible for the safety pin. Both connecting wires have electrical functions and are equipped with plugs, which are responsible for connecting to the fire extinguishing bomb. In addition, there are two non-elastic connecting ropes without electrical functions. One end of them is fixed on the two plugs, and the other end is fixed on the drone. The length of the two connecting ropes is slightly shorter than the two connecting wires with electrical functions. The reason is that the two ropes are responsible for pulling out the plugs, and the length is shorter than the electrical connecting wires, which can avoid the two electrical function connecting wires from being damaged due to pulling during repeated bombing operations.

[0052] According to an embodiment of the present invention, the physical user interface includes a switch, a button and a screen.

[0053] Specifically, two physical connecting wires are bound to the drone body frame and are used to unplug the plug after dropping the bomb. Because the connecting wires are shorter than the electrical signal wires, the electrical signal wires will not be pulled.

[0054] Furthermore, the drone only needs to be equipped with one control box, which can be reused. One control box has the ability to operate multiple fire bombs at the same time. It has the ability to communicate with the drone flight control in real time (optional / not required). Under normal circumstances, the control box does not need to communicate with the drone flight control. Before takeoff, the time for the delayed detonation after dropping can be set. After dropping the bomb, the fire bomb automatically starts timing and detonates.

[0055] A safety pin and a bridge wire are arranged inside the earphone plug. The safety pin is inserted to ensure that the safety bomb will not explode. The safety pin and the bridge wire are short-circuited; or, a large resistor is connected in series with the bridge wire for protection.

[0056] Furthermore, the safety pin has a signal feedback line to provide feedback information on whether the safety pin is inserted. If the onboard control box finds that the safety pin is not inserted during the user's operation, there is a risk. The onboard control box will have an alarm message and will not allow operations such as adding high voltage / detonation. After the user completes the operation, the safety pin inspection mechanism is canceled.

[0057] Furthermore, the fire extinguishing bomb has no battery unit, and the fire extinguishing bomb can be thrown by hook or by bomb bay. There are two pluggable interfaces on the fire extinguishing bomb (similar to DC power plug or headphone plug, etc.), so that when the bomb is thrown, the two connectors will be pulled out due to gravity. One plug is responsible for connecting with the control box, which can be a two-wire, sufficient to provide power and control instructions. The other plug is a safety pin, which can ensure the inherent safety of the fire extinguishing bomb when inserted. The insertion / extraction status of the safety pin can be read by the control box, and the control box can know the real-time status of the safety pin, because the ignition mechanism is connected in series with a large resistor or is disconnected, ensuring that it will not detonate even in the event of misoperation.

[0058] Embodiment 2

[0059] The second aspect of the present invention provides a method for using an airborne digital precision time-delay control fire extinguishing bomb, which is applied to an airborne digital precision time-delay control fire extinguishing bomb system, comprising the following steps:

[0060] Insert the two plug connectors connected to the control box into the two plug-in interfaces above the fire extinguisher bomb body, and put the fire extinguisher bomb into the bomb bay of the drone or hang it on the hook of the drone;

[0061] Based on the communication with the fire extinguishing bomb, the control box determines the electrical connection status with the fire extinguishing bomb, the status of whether the safety pin is inserted or not, and the real-time working status and parameter setting information of the fire extinguishing bomb;

[0062] Based on the bombing altitude, set the time parameters of the delay control module before takeoff. The time parameters are based on the bombing altitude minus the airburst altitude (generally about 2 meters above the ground), and calculate the free fall time value with an accuracy better than 0.1 second. After everything is set, control the takeoff and prepare for bombing;

[0063] After takeoff, the drone is controlled to move along the warning trajectory to directly above the fire source and fly to the predetermined designated height. Finally, the bomb bay or the unhooking mechanism is opened to release the fire extinguishing bomb. After the fire extinguishing bomb is off the line, the delay timer starts. When the time is up, it is generally exploded in the air at a height of about 2 meters above the ground to extinguish the fire.

[0064] According to an embodiment of the present invention, the delayed explosion time of the fire extinguishing bomb is set on the time setting interface of the control box based on the bombing height of the drone, and the release of the fire extinguishing bomb is controlled, specifically including:

[0065] Based on the fire situation, choose the appropriate drone bombing altitude;

[0066] Based on the bombing height of the drone plus the air explosion height of 1.5 to 2 meters, the delay control detonation time is calculated using the free fall height. The appropriate delay control time is set through the user interface or real-time communication with the drone so that the fire extinguishing bomb is about 1.5 to 2 meters before landing, and the fire extinguishing bomb is exploded and the fire is extinguished with delay control.

[0067] According to an embodiment of the present invention, it also includes:

[0068] Get the communication information between the control box and the fire extinguisher bomb;

[0069] Analyze the connection status between the control box and the fire extinguisher bomb based on the communication information;

[0070] Determine whether the connection status is successful;

[0071] If successful, the drone is controlled to fly;

[0072] If unsuccessful, an alarm message is generated, and a connection abnormality alarm is issued based on the alarm message.

[0073] According to an embodiment of the present invention, it also includes:

[0074] Get the safety bolt operation status information;

[0075] Compare the safety bolt operation status information with the set status information to obtain the status deviation rate;

[0076] Determine whether the state deviation rate is greater than or equal to the set deviation rate threshold;

[0077] If it is greater than or equal to the set state deviation rate, it is determined that the safety bolt is not connected and a safety bolt abnormality alarm message is generated;

[0078] If it is less than the set state deviation rate, it is determined that the safety lock is operating normally.

[0079] In summary, this application accurately controls the explosion time by setting a delay control module with an accuracy of up to 1 millisecond, and ensures the safety of personnel and drones by setting a safety bolt mechanism, with high reliability and high security.

[0080] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0081] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to the above embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the above embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

[0082] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. An airborne digital precision time-delay control fire extinguishing bomb system, comprising: Aircraft control box and fire extinguishing bomb; characterized in that, The onboard control box is electrically connected to the fire extinguishing bomb; The onboard control box is electrically connected to the delay control module inside the fire extinguishing bomb, and the delay control module is used to control the ignition head so that the fire extinguishing bomb can achieve digital and precise control of explosion; An explosive unit and an ignition head are arranged at the center of the fire extinguishing bomb. The explosive unit is excited by the ignition head part, and as the only excitation source, the ignition head part is inserted into the explosive unit, and the ignition head is electrically connected to the delay control module.

2. The airborne digital precision time-delay control fire extinguishing bomb system according to claim 1, characterized in that: Two plug-in interfaces are arranged in parallel on one side of the delay control module, and the onboard control box can be electrically connected to the two plug-in interfaces.

3. The airborne digital precision time-delay control fire extinguishing bomb system according to claim 2 is characterized in that: The onboard control box is installed under a body frame of an unmanned aerial vehicle, a manned aircraft or a high-hanging aircraft. Two physical connection lines are arranged under the body frame. The plug-in interface includes a first plug-in connector and a second plug-in connector. One physical connection line is connected to the first plug-in connector, and the other physical connection line is connected to the second plug-in connector.

4. The airborne digital precision time-delay control fire extinguishing bomb system according to claim 3 is characterized in that: A short-circuit connection structure is provided inside the second plug-in connector. After the second plug-in connector is inserted, the two connection points of the ignition head of the delay control module are short-circuited or a large resistor is connected in series between the two connection points, so that the ignition head cannot ignite. The second plug-in connector acts as a safety bolt to ensure that it cannot ignite after insertion.

5. The airborne digital precision time-delay control fire extinguishing bomb system according to claim 1 is characterized in that: A physical user interface is provided on one side of the onboard control box, and the physical user interface includes switches, buttons and a screen.

6. The airborne digital precision time-delay control fire extinguishing bomb system according to claim 1, characterized in that: The onboard control box communicates with the drone via a serial port, thereby achieving real-time binding and control in the air.

7. The airborne digital precision time-delay control fire extinguishing bomb system according to claim 1, characterized in that: One side of the onboard control box is connected to a power source, and the power source is an independent battery power source or an external power source provided by the drone.

8. A method for using an airborne digital precision time-delay controlled fire extinguishing bomb, applied to the airborne digital precision time-delay controlled fire extinguishing bomb system as claimed in any one of claims 1 to 7, characterized in that: The steps include: Insert the two plug connectors connected to the control box into the two plug-in interfaces above the fire extinguisher bomb body, and put the fire extinguisher bomb into the bomb bay of the drone or hang it on the hook of the drone; Based on the communication with the fire extinguishing bomb, the control box determines the electrical connection status with the fire extinguishing bomb, the status of whether the safety pin is inserted or not, and the real-time working status and parameter setting information of the fire extinguishing bomb; Based on the bombing altitude, set the time parameters of the delay control module before takeoff. The time parameters are based on the bombing altitude minus the airburst altitude, and the free fall time is calculated. Once everything is set, control the takeoff and prepare for bombing. After takeoff, the drone is controlled to move along the warning trajectory to directly above the fire source and fly to the predetermined designated height. Finally, the bomb bay or the unhooking mechanism is opened to release the fire extinguishing bomb. After the fire extinguishing bomb is off the line, the delay timer starts. When the time is up, the fire is extinguished by air explosion at a height of about 2 meters above the ground.

9. The airborne digital precision time-delay control fire extinguishing bomb system according to claim 8, characterized in that: Based on the bombing height of the drone, set the delayed explosion time of the fire bomb in the time setting interface of the control box, and control the release of the fire bomb, including: Based on the fire situation, choose the appropriate drone bombing altitude; Based on the bomb dropping height of the drone plus the air explosion height of about 2 meters, the delay control detonation time is calculated using the free fall height. The appropriate delay control time is set through the user interface or real-time communication with the drone so that the fire extinguishing bomb is about 2 meters before landing, and the delay control fire extinguishing bomb explodes and extinguishes the fire.

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