A safety guarantee method in a forest fire extinguishing bomb storage, carrying and mounting process

By using a triaxial accelerometer and a microcontroller unit to determine the safety status of the fire extinguishing bombs, the problem of accidental detonation during storage and transportation is solved, ensuring the safety and effectiveness of the fire extinguishing bombs during loading and deployment.

CN117228246BActive Publication Date: 2026-05-01SHANXI DIAOPU TECH CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANXI DIAOPU TECH CO LTD
Filing Date
2023-10-26
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Forest fire extinguishing bombs are prone to accidental detonation due to misoperation or mechanical problems during storage and transportation, and may also explode unexpectedly during loading, affecting safety and effectiveness.

Method used

A three-axis accelerometer is used to detect the acceleration value and free fall time of the fire extinguishing bomb. Combined with a microcontroller unit, the safety status of the fire extinguishing bomb is determined. The safety status of the fire extinguishing bomb is determined by setting thresholds and time.

Benefits of technology

It ensures the safety of fire extinguishing bombs during storage, transportation, and loading, preventing accidental and unintended explosions, and ensuring the safe use and effective deployment of fire extinguishing bombs.

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Abstract

The application discloses a safety guarantee method in the storage, carrying and mounting process of a forest fire extinguishing bomb. First, whether the fire extinguishing bomb is mistakenly touched is judged by judging the time length of pressing a power supply starting button of the fire extinguishing bomb. Then, whether the fire extinguishing bomb meets the conditions of nx < nx0, ny < ny0 and nz < nz0 is judged by detecting the values nx, ny and nz of the fire extinguishing bomb in x, y and z directions in real time through a three-axis acceleration sensor. Finally, whether the fire extinguishing bomb is in a safe state is judged by judging the relationship between the free fall time t of the fire extinguishing bomb and the shortest duration t0 of the free fall. The safety guarantee method in the storage, carrying and mounting process of the forest fire extinguishing bomb can judge whether the fire extinguishing bomb is in a safe state, and provides safety guarantee for the use of the fire extinguishing bomb.
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Description

Technical Field

[0001] This invention relates to the field of safety assessment technology during the use of forest fire extinguishing bombs, and in particular to a safety assurance method during the storage, transportation and loading of forest fire extinguishing bombs. Background Technology

[0002] In existing technologies, most forest fire extinguishing bombs use battery power to detonate delayed fuses. This makes them prone to accidental detonation due to human error during storage, handling, or mounting, leading to safety accidents. On the other hand, after forest fire extinguishing bombs are mounted on carriers such as drones, during deployment, mechanical and other issues can cause unexpected explosions of the bombs before or immediately after detaching from their carriers, resulting in damage to the carriers or failure to achieve the intended fire extinguishing and rescue objectives. Summary of the Invention

[0003] To address the shortcomings and deficiencies of existing technologies, a safety assurance method is provided for the storage, transportation, and loading of forest fire extinguishing bombs. This method can determine whether the fire extinguishing bombs are in a safe state, thus providing a safety guarantee for their use.

[0004] A safety assurance method for the storage, transportation, and loading of forest fire extinguishing bombs, provided to achieve the purpose of this invention, includes the following steps:

[0005] S1. Press the power start button for the fire extinguishing bomb;

[0006] S2. Determine if the pressing time of the fire extinguishing bomb power start button is greater than 5 seconds. If the pressing time is less than or equal to 5 seconds, the fire extinguishing bomb power will not start and the fire extinguishing bomb is safe. If the pressing time is greater than 5 seconds, the fire extinguishing bomb power will start and supply power to the microcontroller unit (MCU) and the three-axis accelerometer.

[0007] S3. Based on the working environment of the device to be deployed, set the free fall thresholds nx0, ny0, and nz0 in the x, y, and z directions in the address of the triaxial accelerometer register.

[0008] S4. The three-axis accelerometer detects the values ​​nx, ny, and nz in the x, y, and z directions of the fire extinguishing projectile in real time. If nx < nx0, ny < ny0, and nz < nz0 are not satisfied, the free fall is interrupted and the fire extinguishing projectile is safe. If nx < nx0, ny < ny0, and nz < nz0 are satisfied, the free fall time t of the fire extinguishing projectile is recorded.

[0009] S5. Set the minimum free fall time t0 for the fire extinguishing bomb. If the free fall time t < t0, the free fall is interrupted and the fire extinguishing bomb is safe.

[0010] The beneficial effects of this invention are:

[0011] Compared with existing technologies, this invention provides a safety assurance method for the storage, transportation, and loading of forest fire extinguishing bombs. During use, a triaxial accelerometer is used to monitor the values ​​of nx, ny, and nz in the x, y, and z directions of the fire extinguishing bomb in real time. This is combined with the relationship between the fire extinguishing bomb's free fall time t and its shortest free fall duration t0 to determine its safety. This safety assurance method for the storage, transportation, and loading of forest fire extinguishing bombs can determine that the fire extinguishing bomb is in a safe state, thus providing a safety guarantee for its use. Attached Figure Description

[0012] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein:

[0013] Figure 1 This is a flowchart of the control method of the present invention. Detailed Implementation

[0014] like Figure 1 As shown, the present invention provides a safety assurance method for the storage, transportation, and loading of forest fire extinguishing bombs, comprising the following steps:

[0015] S1. Press the power start button for the fire extinguishing bomb;

[0016] S2. Determine if the pressing time of the fire extinguishing bomb power start button is greater than 5 seconds. If the pressing time is less than or equal to 5 seconds, the fire extinguishing bomb power will not start and the fire extinguishing bomb is safe. If the pressing time is greater than 5 seconds, the fire extinguishing bomb power will start and supply power to the microcontroller unit (MCU) and the three-axis accelerometer.

[0017] S3. Based on the working environment of the device to be deployed, set the free fall thresholds nx0, ny0, and nz0 in the x, y, and z directions in the address of the triaxial accelerometer register.

[0018] S4. The three-axis accelerometer detects the values ​​nx, ny, and nz in the x, y, and z directions of the fire extinguishing projectile in real time. If nx < nx0, ny < ny0, and nz < nz0 are not satisfied, the free fall is interrupted and the fire extinguishing projectile is safe. If nx < nx0, ny < ny0, and nz < nz0 are satisfied, the free fall time t of the fire extinguishing projectile is recorded.

[0019] S5. Set the minimum free fall time t0 for the fire extinguishing bomb. If the free fall time t < t0, the free fall is interrupted and the fire extinguishing bomb is safe.

[0020] The above embodiments are not limited to the technical solutions of the embodiments themselves, and the embodiments can be combined with each other to form new embodiments. The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the scope of the technical solutions of the present invention.

Claims

1. A safety assurance method for the storage, transportation, and loading of forest fire extinguishing bombs, characterized in that: The steps include the following: S1. Press the power start button for the fire extinguishing bomb; S2. Determine if the pressing time of the fire extinguishing bomb power start button is greater than 5 seconds. If the pressing time is less than or equal to 5 seconds, the fire extinguishing bomb power will not start and the fire extinguishing bomb is safe. If the pressing time is greater than 5 seconds, the fire extinguishing bomb power will start and supply power to the microcontroller unit (MCU) and the three-axis accelerometer. S3. Based on the working environment of the fire extinguishing bomb, set the free fall thresholds nx0, ny0, and nz0 in the x, y, and z directions in the address of the triaxial accelerometer register. S4. The three-axis accelerometer detects the values ​​nx, ny, and nz in the x, y, and z directions of the fire extinguishing projectile in real time. If nx < nx0, ny < ny0, and nz < nz0 are not satisfied, the free fall is interrupted and the fire extinguishing projectile is safe. If nx < nx0, ny < ny0, and nz < nz0 are satisfied, the free fall time t of the fire extinguishing projectile is recorded. S5. Set the minimum free fall time t0 for the fire extinguishing bomb. If the free fall time t < t0, the free fall is interrupted and the fire extinguishing bomb is safe.

Citation Information

Patent Citations

  • Drop processing method and system of safety helmet

    CN108877147A

  • Fire extinguishing bomb based on three-axis acceleration sensor and control method

    CN112642074A