A method, device and computer-readable storage medium for releasing high-temperature battery cells in mid-air

Abstract

The present invention discloses a method, device, and computer-readable storage medium for releasing high-temperature battery cells in mid-air. The method comprises: calculating a first landing area for the high-temperature battery cell when released without traction, and a second landing area for the high-temperature battery cell when released by parachute traction; when the first landing area is determined to be within a safe range based on the ground conditions, controlling the high-temperature battery cell to detach from the aircraft and performing a no-traction release operation; and when the first landing area is determined not to be within the safe range and the second landing area is within the safe range based on the ground conditions, controlling the high-temperature battery cell to detach from the aircraft and performing a parachute traction release operation. The present invention implements a safer high-temperature battery cell mid-air release solution, effectively reducing the hazards of high-temperature batteries without affecting the normal flight of the aircraft, while ensuring the safety of the aircraft and the ground.

Description

Technical Field

[0001] The present invention relates to the technical field of unmanned aerial vehicles, and in particular to a method and device for releasing a high-temperature battery cell in mid-air, and a computer-readable storage medium. Background Art

[0002] In existing technologies, with the continuous development of unmanned aerial vehicle technology, aircraft flight safety is becoming increasingly important.

[0003] Currently, when an aircraft is performing a flight mission, if the aircraft's battery pack fails, for example, when a battery cell in the battery pack becomes abnormally high in temperature, the aircraft will generally immediately perform a return or landing operation, which will force the current flight mission to terminate. For example, the aircraft may throw high-temperature battery cells to the outside, but high-temperature battery cells may increase the fire hazard of the external environment.

[0004] Therefore, during the flight of unmanned aerial vehicles, how to effectively and safely deal with the abnormal high temperature of battery cells has become a technical problem that needs to be solved urgently. Summary of the Invention

[0005] In order to solve the above technical defects in the prior art, the present invention proposes a method for releasing high-temperature battery cells in mid-air, which comprises:

[0006] When a high-temperature battery cell is detected in the aircraft, the current flight status is obtained;

[0007] Calculating, according to the flight state, a first landing area of ​​the high-temperature battery core when released without traction, and a second landing area of ​​the high-temperature battery core when released by parachute traction;

[0008] acquiring a ground state of a current ground range corresponding to the flight state, and determining at least one safety range within the current ground range according to the ground state;

[0009] When it is determined according to the ground state that the first landing area is within the safety range, the high-temperature battery cell is controlled to separate from the aircraft and a no-traction release operation is performed. When it is determined according to the ground state that the first landing area is not within the safety range and the second landing area is within the safety range, the high-temperature battery cell is controlled to separate from the aircraft and a parachute traction release operation is performed.

[0010] Optionally, when a high-temperature battery cell is detected in the aircraft, obtaining the current flight status further includes:

[0011] Analyze the flight status to obtain the current flight speed, flight direction, and flight altitude;

[0012] The temperature state of the high-temperature battery cell is monitored to estimate the remaining time from the current moment to the moment of thermal runaway.

[0013] Optionally, calculating, according to the flight state, a first landing area of ​​the high-temperature battery cell when released without traction, and a second landing area of ​​the high-temperature battery cell when released by parachute traction, specifically includes:

[0014] Calculating the first landing area according to the flight speed, the flight direction, and the flight altitude;

[0015] The second landing area is calculated based on the current parachute traction parameters, the flight speed, the flight direction and the flight altitude.

[0016] Optionally, acquiring a ground state of a current ground range corresponding to the flight state, and determining at least one safety range within the current ground range according to the ground state, specifically includes:

[0017] Calculating a current ground range to be identified based on the remaining time, the flight speed, the flight direction, and the flight altitude;

[0018] The safety range that does not include damaged objects is identified and divided within the current ground range to be identified.

[0019] Optionally, the method further includes:

[0020] When neither the first landing area nor the second landing area is within the safety range, continuously monitoring whether the first landing area or the second landing area is within the safety range within the remaining time;

[0021] Obtain the first landing area or the second landing area that is preferentially determined within the safety range within the remaining time, and perform a no-traction release operation corresponding to the first landing area or perform a parachute traction release operation corresponding to the second landing area.

[0022] The present invention also proposes a high-temperature battery cell mid-air release device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the computer program is executed by the processor, the following is achieved:

[0023] When a high-temperature battery cell is detected in the aircraft, the current flight status is obtained;

[0024] Calculating, according to the flight state, a first landing area of ​​the high-temperature battery core when released without traction, and a second landing area of ​​the high-temperature battery core when released by parachute traction;

[0025] acquiring a ground state of a current ground range corresponding to the flight state, and determining at least one safety range within the current ground range according to the ground state;

[0026] When it is determined according to the ground state that the first landing area is within the safety range, the high-temperature battery cell is controlled to separate from the aircraft and a no-traction release operation is performed. When it is determined according to the ground state that the first landing area is not within the safety range and the second landing area is within the safety range, the high-temperature battery cell is controlled to separate from the aircraft and a parachute traction release operation is performed.

[0027] Optionally, when the computer program is executed by the processor, it implements:

[0028] Analyze the flight status to obtain the current flight speed, flight direction, and flight altitude;

[0029] Monitoring the temperature of the high-temperature battery cell and estimating the remaining time from the current moment to the moment of thermal runaway;

[0030] Calculating the first landing area according to the flight speed, the flight direction, and the flight altitude;

[0031] The second landing area is calculated based on the current parachute traction parameters, the flight speed, the flight direction and the flight altitude.

[0032] Optionally, when the computer program is executed by the processor, it implements:

[0033] Calculating a current ground range to be identified based on the remaining time, the flight speed, the flight direction, and the flight altitude;

[0034] The safety range that does not include damaged objects is identified and divided within the current ground range to be identified.

[0035] Optionally, when the computer program is executed by the processor, it implements:

[0036] When neither the first landing area nor the second landing area is within the safety range, continuously monitoring whether the first landing area or the second landing area is within the safety range within the remaining time;

[0037] Obtain the first landing area or the second landing area that is preferentially determined within the safety range within the remaining time, and perform a no-traction release operation corresponding to the first landing area or perform a parachute traction release operation corresponding to the second landing area.

[0038] The present invention also proposes a computer-readable storage medium, which stores a high-temperature battery cell air release program. When the high-temperature battery cell air release program is executed by a processor, the steps of the high-temperature battery cell air release method as described in any one of the above items are implemented.

[0039] The method, device, and computer-readable storage medium for releasing a high-temperature battery cell in mid-air of the present invention are implemented as follows: when a high-temperature battery cell is detected in an aircraft, the current flight state is obtained; based on the flight state, a first landing area of ​​the high-temperature battery cell when released without traction and a second landing area of ​​the high-temperature battery cell when released by parachute traction are calculated; a ground state of a current ground range corresponding to the flight state is obtained, and at least one safety range is determined within the current ground range based on the ground state; when the first landing area is determined to be within the safety range based on the ground state, the high-temperature battery cell is controlled to detach from the aircraft and a no-traction release operation is performed; when the first landing area is determined not to be within the safety range based on the ground state and the second landing area is within the safety range based on the ground state, the high-temperature battery cell is controlled to detach from the aircraft and a parachute traction release operation is performed. The present invention realizes a safer high-temperature battery cell mid-air release scheme, which effectively reduces the hazards of high-temperature batteries without affecting the normal flight of the aircraft, while ensuring the safety of the aircraft and the ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0041] Figure 1 This is the first flow chart of the method for releasing a high-temperature battery cell in mid-air according to the present invention;

[0042] Figure 2 This is the second flow chart of the method for releasing a high-temperature battery cell in mid-air according to the present invention;

[0043] Figure 3 This is the third flow chart of the method for releasing a high-temperature battery cell in mid-air according to the present invention;

[0044] Figure 4 This is the fourth flow chart of the method for releasing a high-temperature battery cell in mid-air according to the present invention;

[0045] Figure 5 This is the fifth flow chart of the high-temperature battery cell air release method of the present invention. DETAILED DESCRIPTION

[0046] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0047] In the subsequent description, suffixes such as "module," "component," or "unit" used to represent elements are only used to facilitate the description of the present invention and have no specific meaning. Therefore, "module," "component," or "unit" can be used interchangeably.

[0048] Figure 1 This is the first flow chart of the method for releasing a high-temperature battery cell in mid-air according to the present invention. This embodiment proposes a method for releasing a high-temperature battery cell in mid-air, which includes:

[0049] S1. When a high-temperature battery cell is detected in the aircraft, the current flight status is obtained;

[0050] S2. Calculating, based on the flight state, a first landing area of ​​the high-temperature battery cell when released without traction, and a second landing area of ​​the high-temperature battery cell when released by parachute traction;

[0051] S3. Acquire a ground state of a current ground range corresponding to the flight state, and determine at least one safety range within the current ground range based on the ground state;

[0052] S4. When it is determined according to the ground state that the first landing area is within the safety range, the high-temperature battery cell is controlled to separate from the aircraft and a no-traction release operation is performed; when it is determined according to the ground state that the first landing area is not within the safety range and the second landing area is within the safety range, the high-temperature battery cell is controlled to separate from the aircraft and a parachute traction release operation is performed.

[0053] Optionally, in this embodiment, when the aircraft detects that the temperature of a battery cell of the battery pack exceeds a first threshold, the battery cell is considered a high-temperature battery cell, wherein the first threshold is lower than a thermal runaway threshold of the battery cell itself.

[0054] Optionally, in this embodiment, two different landing areas are calculated based on the current flight state for the high-temperature battery cell when released without traction and when released by parachute traction. The two different landing areas include both a flat area on a plain and a projected area in a three-dimensional environment such as a mountain or building.

[0055] Optionally, in this embodiment, the safe range means that the range does not include fragile objects or damaged objects. Fragile objects include combustible objects, such as dead grass, dead wood, and recyclable garbage, and damaged objects include potentially damageable objects, such as human beings, animals, vehicles, and public facilities.

[0056] Optionally, in this embodiment, the corresponding parachute is determined according to the weight data of the high-temperature battery cell, and the traction point of the parachute on the high-temperature battery cell is determined according to the size data of the high-temperature battery cell, thereby ensuring the calculation accuracy of the above-mentioned second landing point area.

[0057] The beneficial effect of implementing this embodiment is that when a high-temperature battery cell is detected in an aircraft, the current flight state is obtained; the first landing area of ​​the high-temperature battery cell when released without traction and the second landing area of ​​the high-temperature battery cell when released by parachute traction are calculated based on the flight state; the ground state of the current ground range corresponding to the flight state is obtained, and at least one safety range is determined within the current ground range based on the ground state; when the first landing area is determined to be within the safety range based on the ground state, the high-temperature battery cell is controlled to detach from the aircraft and perform a no-traction release operation; when the first landing area is determined not to be within the safety range and the second landing area is within the safety range based on the ground state, the high-temperature battery cell is controlled to detach from the aircraft and perform a parachute traction release operation. A safer high-temperature battery cell aerial release solution is implemented, which effectively reduces the hazards of high-temperature batteries without affecting the normal flight of the aircraft, while ensuring the safety of the aircraft and the ground.

[0058] Figure 2 This is a second flow chart of the method for releasing a high-temperature battery cell in mid-air according to the present invention. Based on the above embodiment, when a high-temperature battery cell is detected in the aircraft, obtaining the current flight status further includes:

[0059] S11, analyzing the flight status to obtain the current flight speed, flight direction, and flight altitude;

[0060] S12: Monitor the temperature state of the high-temperature battery cell and estimate the remaining time from the current moment to the thermal runaway moment.

[0061] Optionally, in this embodiment, the remaining time from the current moment to the thermal runaway moment is estimated based on the current temperature, the temperature growth rate and the thermal runaway threshold in the temperature state.

[0062] Optionally, in this embodiment, first, the high-temperature battery cell is detached from the battery pack of the aircraft, then, the high-temperature battery cell is suspended, and finally, the remaining time from the current moment to the thermal runaway moment is estimated based on the current temperature, temperature growth rate and the above-mentioned thermal runaway threshold in the temperature state; or, when the high-temperature battery cell has not been detached, the remaining time from the current moment to the thermal runaway moment is estimated based on the current temperature, temperature growth rate and the above-mentioned thermal runaway threshold in the temperature state.

[0063] Figure 3 This is a third flow chart of the method for releasing a high-temperature battery cell in mid-air according to the present invention. Based on the above embodiment, the calculation of the first landing area of ​​the high-temperature battery cell when released without traction and the second landing area of ​​the high-temperature battery cell when released by parachute traction according to the flight state specifically includes:

[0064] S21. Calculate the first landing area according to the flight speed, the flight direction, and the flight altitude;

[0065] S22. Calculate the second landing area according to the current parachute traction parameters, the flight speed, the flight direction, and the flight altitude.

[0066] Optionally, in this embodiment, when the first landing area is an urban area, the area of ​​the cement platform on the top floor of one or more buildings is used as an independent first landing area.

[0067] Optionally, in this embodiment, when the second landing area is an urban area, the area of ​​the cement platform on the top floor of one or more buildings is used as an independent second landing area.

[0068] Optionally, in this embodiment, when the first landing area is a water surface area, the water surface areas of one or more ponds, lakes or rivers are used as independent first landing areas.

[0069] Optionally, in this embodiment, when the second landing area is an urban area, the water surface areas of one or more ponds, lakes or rivers are used as independent second landing areas.

[0070] Figure 4 This is a fourth flow chart of the method for releasing a high-temperature battery cell in mid-air according to the present invention. Based on the above embodiment, obtaining the ground state of the current ground range corresponding to the flight state and determining at least one safety range within the current ground range according to the ground state specifically includes:

[0071] S31. Calculating a current ground range to be identified based on the remaining time, the flight speed, the flight direction, and the flight altitude;

[0072] S32: Identify and divide the safe range that does not include damaged objects within the current ground range to be identified.

[0073] Optionally, in this embodiment, when the current ground range to be identified is a city, cement platform areas on the top floors of one or more buildings that do not contain damaged objects are used as independent safety areas.

[0074] Optionally, in this embodiment, when the current ground range to be identified is a water body, the water surface areas of one or more ponds, lakes or rivers that do not contain damaged objects are used as independent safety areas.

[0075] Figure 5 This is a fifth flow chart of the method for releasing a high-temperature battery cell in mid-air according to the present invention. Based on the above embodiment, the method further includes:

[0076] S51: When neither the first landing area nor the second landing area is within the safety range, continuously monitoring whether the first landing area or the second landing area is within the safety range within the remaining time;

[0077] S52: Obtain the first landing area or the second landing area that is preferentially determined to be within the safety range within the remaining time, and perform a no-traction release operation corresponding to the first landing area or perform a parachute traction release operation corresponding to the second landing area.

[0078] Optionally, in this embodiment, the high-temperature battery cell is detached from the battery pack of the aircraft, and then the high-temperature battery cell is suspended. When the first landing area or the second landing area is still not within the safety range within the remaining time, the suspension line used to suspend the high-temperature battery cell is extended according to the current battery cell temperature value.

[0079] Optionally, in this embodiment, after extending the suspension line, the first landing area or the second landing area that is preferentially determined to be within the safety range is recalculated and obtained, and a no-traction release operation corresponding to the first landing area is performed or a parachute traction release operation corresponding to the second landing area is performed.

[0080] Based on the above embodiments, the present invention further proposes a high-temperature battery cell mid-air release device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the computer program is executed by the processor, the following is achieved:

[0081] When a high-temperature battery cell is detected in the aircraft, the current flight status is obtained;

[0082] Calculating, according to the flight state, a first landing area of ​​the high-temperature battery core when released without traction, and a second landing area of ​​the high-temperature battery core when released by parachute traction;

[0083] acquiring a ground state of a current ground range corresponding to the flight state, and determining at least one safety range within the current ground range according to the ground state;

[0084] When it is determined according to the ground state that the first landing area is within the safety range, the high-temperature battery cell is controlled to separate from the aircraft and a no-traction release operation is performed. When it is determined according to the ground state that the first landing area is not within the safety range and the second landing area is within the safety range, the high-temperature battery cell is controlled to separate from the aircraft and a parachute traction release operation is performed.

[0085] Optionally, when the computer program is executed by the processor, it implements:

[0086] Analyze the flight status to obtain the current flight speed, flight direction, and flight altitude;

[0087] Monitoring the temperature of the high-temperature battery cell and estimating the remaining time from the current moment to the moment of thermal runaway;

[0088] Calculating the first landing area according to the flight speed, the flight direction, and the flight altitude;

[0089] The second landing area is calculated based on the current parachute traction parameters, the flight speed, the flight direction and the flight altitude.

[0090] Optionally, when the computer program is executed by the processor, it implements:

[0091] Calculating a current ground range to be identified based on the remaining time, the flight speed, the flight direction, and the flight altitude;

[0092] The safety range that does not include damaged objects is identified and divided within the current ground range to be identified.

[0093] Optionally, when the computer program is executed by the processor, it implements:

[0094] When neither the first landing area nor the second landing area is within the safety range, continuously monitoring whether the first landing area or the second landing area is within the safety range within the remaining time;

[0095] Obtain the first landing area or the second landing area that is preferentially determined within the safety range within the remaining time, and perform a no-traction release operation corresponding to the first landing area or perform a parachute traction release operation corresponding to the second landing area.

[0096] It should be noted that the above-mentioned device embodiment and method embodiment belong to the same concept, and their specific implementation process is detailed in the method embodiment, and the technical features in the method embodiment are applicable to the device embodiment, which will not be repeated here.

[0097] Based on the above embodiments, the present invention also proposes a computer-readable storage medium, which stores a high-temperature battery cell air release program. When the high-temperature battery cell air release program is executed by a processor, the steps of the high-temperature battery cell air release method as described in any of the above items are implemented.

[0098] It should be noted that the above-mentioned medium embodiment and method embodiment belong to the same concept, and their specific implementation process is detailed in the method embodiment, and the technical features in the method embodiment are applicable to the medium embodiment, which will not be repeated here.

[0099] It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0100] The serial numbers of the above embodiments of the present invention are for description only and do not represent the advantages or disadvantages of the embodiments.

[0101] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus the necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better embodiment. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk), and includes a number of instructions for enabling a terminal (which can be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in each embodiment of the present invention.

[0102] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the present invention and the claims, all of which are protected by the present invention.

Claims

1. A method for releasing high-temperature battery cells in mid-air, characterized in that: The method comprises: When a high-temperature battery cell is detected in the aircraft, the current flight status is obtained; Calculating, according to the flight state, a first landing area of ​​the high-temperature battery core when released without traction, and a second landing area of ​​the high-temperature battery core when released by parachute traction; acquiring a ground state of a current ground range corresponding to the flight state, and determining at least one safety range within the current ground range according to the ground state; When it is determined according to the ground state that the first landing area is within the safety range, the high-temperature battery cell is controlled to separate from the aircraft and a no-traction release operation is performed. When it is determined according to the ground state that the first landing area is not within the safety range and the second landing area is within the safety range, the high-temperature battery cell is controlled to separate from the aircraft and a parachute traction release operation is performed.

2. The method for releasing a high-temperature battery cell in mid-air according to claim 1, characterized in that: When a high-temperature battery cell is detected in the aircraft, obtaining the current flight status further includes: Analyze the flight status to obtain the current flight speed, flight direction, and flight altitude; The temperature state of the high-temperature battery cell is monitored to estimate the remaining time from the current moment to the moment of thermal runaway.

3. The method for releasing a high-temperature battery cell in mid-air according to claim 2, characterized in that: Calculating, according to the flight state, a first landing area of ​​the high-temperature battery cell when released without traction, and a second landing area of ​​the high-temperature battery cell when released by parachute traction, specifically includes: Calculating the first landing area according to the flight speed, the flight direction, and the flight altitude; The second landing area is calculated based on the current parachute traction parameters, the flight speed, the flight direction and the flight altitude.

4. The method for releasing a high-temperature battery cell in mid-air according to claim 3, characterized in that: The acquiring of a ground state of a current ground range corresponding to the flight state, and determining at least one safety range within the current ground range according to the ground state, specifically includes: Calculating a current ground range to be identified based on the remaining time, the flight speed, the flight direction, and the flight altitude; The safety range that does not include damaged objects is identified and divided within the current ground range to be identified.

5. The method for releasing a high-temperature battery cell in mid-air according to claim 4, characterized in that: The method further comprises: When neither the first landing area nor the second landing area is within the safety range, continuously monitoring whether the first landing area or the second landing area is within the safety range within the remaining time; Obtain the first landing area or the second landing area that is preferentially determined within the safety range within the remaining time, and perform a no-traction release operation corresponding to the first landing area or perform a parachute traction release operation corresponding to the second landing area.

6. A high-temperature battery cell air release device, characterized in that: The device includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the computer program is executed by the processor, the computer program implements: When a high-temperature battery cell is detected in the aircraft, the current flight status is obtained; Calculating, according to the flight state, a first landing area of ​​the high-temperature battery core when released without traction, and a second landing area of ​​the high-temperature battery core when released by parachute traction; acquiring a ground state of a current ground range corresponding to the flight state, and determining at least one safety range within the current ground range according to the ground state; When it is determined according to the ground state that the first landing area is within the safety range, the high-temperature battery cell is controlled to separate from the aircraft and a no-traction release operation is performed. When it is determined according to the ground state that the first landing area is not within the safety range and the second landing area is within the safety range, the high-temperature battery cell is controlled to separate from the aircraft and a parachute traction release operation is performed.

7. The high-temperature battery cell aerial release device according to claim 6, characterized in that: When the computer program is executed by the processor, it realizes: Analyze the flight status to obtain the current flight speed, flight direction, and flight altitude; Monitoring the temperature of the high-temperature battery cell and estimating the remaining time from the current moment to the moment of thermal runaway; Calculating the first landing area according to the flight speed, the flight direction, and the flight altitude; The second landing area is calculated based on the current parachute traction parameters, the flight speed, the flight direction and the flight altitude.

8. The high-temperature battery cell aerial release device according to claim 7, characterized in that: When the computer program is executed by the processor, it realizes: Calculating a current ground range to be identified based on the remaining time, the flight speed, the flight direction, and the flight altitude; The safety range that does not include damaged objects is identified and divided within the current ground range to be identified.

9. The high-temperature battery cell aerial release device according to claim 8, characterized in that: When the computer program is executed by the processor, it realizes: When neither the first landing area nor the second landing area is within the safety range, continuously monitoring whether the first landing area or the second landing area is within the safety range within the remaining time; Obtain the first landing area or the second landing area that is preferentially determined within the safety range within the remaining time, and perform a no-traction release operation corresponding to the first landing area or perform a parachute traction release operation corresponding to the second landing area.

10. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a high-temperature battery cell air release program, which, when executed by a processor, implements the steps of the high-temperature battery cell air release method according to any one of claims 1 to 5.

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