Automatic parachute opener control method and automatic parachute opener

Abstract

The present invention discloses an automatic parachute opener control method and an automatic parachute opener, relating to the field of parachuting safety technology. The method comprises: controlling the automatic parachute opener to enter flight mode based on a currently acquired first altitude and ground altitude; controlling the automatic parachute opener to enter operating mode based on a currently acquired second altitude and the ground altitude; controlling the automatic parachute opener to enter exit mode based on a currently acquired first descent speed; controlling the automatic parachute opener to enter ignition mode based on a currently acquired second descent speed, a third altitude, and the ground altitude; controlling the automatic parachute opener to ignite, and controlling the automatic parachute opener to enter landing mode based on a currently acquired fourth altitude and the ground altitude; and controlling the automatic parachute opener to enter termination mode based on a currently acquired third descent speed. In this way, the automatic parachute opener can be controlled to accurately enter ignition mode, ensuring that parachutists can open their parachutes and land in a timely manner.

Description

Technical Field

[0001] The present invention relates to the technical field of parachuting safety, and in particular to an automatic parachute opener control method and an automatic parachute opener. Background Art

[0002] The currently commonly used automatic parachute controller simply determines whether the parachute bag is cut based on the parachuting altitude and speed. However, this technology is prone to misjudging the parachute bag cut, thus threatening the life safety of the parachutist.

[0003] In summary, there is currently a disadvantage in that the automatic parachute opener cannot be accurately controlled to cut the parachute bag. Summary of the Invention

[0004] In view of this, the purpose of the present invention is to overcome the shortcomings of the prior art and provide an automatic parachute opener control method and an automatic parachute opener, which are used to judge and switch different modes according to the parachute speed and parachute altitude, and to judge the ignition mode under the premise of judging multiple modes, to ensure timely ignition and cutting of the parachute bag, thereby protecting the safety of parachuting personnel.

[0005] The present invention provides the following technical solutions:

[0006] The present invention provides an automatic parachute opener control method, which is applied to the automatic parachute opener. The method includes:

[0007] Control the automatic parachute opener to enter flight mode according to the currently acquired first altitude and ground altitude;

[0008] In the flight mode, controlling the automatic parachute opener to enter a working mode according to the currently acquired second altitude and the ground altitude;

[0009] In the working mode, the automatic parachute opener is controlled to enter the exit mode according to the currently acquired first landing speed;

[0010] In the exit mode, controlling the automatic parachute opener to enter the ignition mode according to the currently acquired second descent speed, the third altitude, and the ground altitude;

[0011] In the ignition mode, controlling the automatic parachute opener to ignite, and controlling the automatic parachute opener to enter a landing mode according to the currently acquired fourth altitude and the ground altitude;

[0012] In the landing mode, the automatic parachute opener is controlled to enter the end mode according to the currently acquired third landing speed.

[0013] In one embodiment, controlling the automatic parachute opener to enter the flight mode according to the currently acquired first altitude and ground altitude includes:

[0014] Real-time acquisition and conversion of the first air pressure after the automatic parachute opener is turned on to obtain the current first altitude;

[0015] The corresponding first relative altitude is determined in real time according to the difference between the currently acquired first altitude and the ground altitude; until the currently acquired first relative altitude is greater than a first altitude threshold, the automatic parachute opener is controlled to enter the flight mode.

[0016] In one embodiment, in the flight mode, controlling the automatic parachute opener to enter the working mode according to the currently acquired second altitude and the ground altitude includes:

[0017] In the flight mode, the current second air pressure is acquired and converted in real time to obtain the current second altitude;

[0018] The second relative altitude is determined in real time according to the difference between the currently acquired second altitude and the ground altitude; and the automatic parachute opener is controlled to enter the working mode until the currently acquired second relative altitude is greater than a second altitude threshold.

[0019] In one embodiment, in the working mode, controlling the automatic parachute opener to enter the exit mode according to the currently acquired first descent speed includes:

[0020] In the working mode, the current first descent speed is acquired in real time; until the currently acquired first descent speed is greater than a first speed threshold, the automatic parachute opener is controlled to enter the exit mode.

[0021] In one embodiment, in the exit mode, controlling the automatic parachute opener to enter the ignition mode according to the currently acquired second descent speed, the third altitude, and the ground altitude includes:

[0022] In the exit mode, the current second descent speed and third air pressure are acquired in real time, and the current third altitude is determined based on the currently acquired third air pressure;

[0023] The automatic parachute opener is controlled to enter the ignition mode until the currently acquired second descent speed is continuously greater than the second speed threshold within a first target time period and the currently acquired third relative altitude is less than the third altitude threshold.

[0024] In one embodiment, controlling the automatic parachute opener to enter the landing mode according to the currently acquired fourth altitude and the ground altitude includes:

[0025] In the ignition mode, the current fourth air pressure is acquired and converted in real time to obtain the current fourth altitude;

[0026] The fourth relative altitude is determined in real time based on the difference between the currently acquired fourth altitude and the ground altitude; and the automatic parachute opener is controlled to enter the landing mode until the currently acquired fourth relative altitude is continuously less than a fourth altitude threshold within a second target time period.

[0027] In one embodiment, in the landing mode, controlling the automatic parachute opener to enter the end mode according to the currently acquired third landing speed includes:

[0028] In the landing mode, the current third landing speed is obtained in real time; until the currently obtained third landing speed is continuously less than the third speed threshold within three standard time periods, the automatic parachute opener is controlled to enter the end mode.

[0029] In one embodiment, the method further comprises:

[0030] If the parachute zone height is equal to the take-off zone height, obtaining and converting the take-off zone air pressure to obtain the take-off zone height, and using the take-off zone height as the ground height;

[0031] If the altitude of the parachute landing area is different from the altitude of the take-off area, the air pressure of the parachute landing area is obtained and converted to obtain a target conversion altitude; and the target conversion altitude is used as the ground altitude.

[0032] In one embodiment, the method further comprises:

[0033] If the height of the parachute landing area is different from the height of the take-off area, obtaining the height of the take-off area as the ground height, and obtaining the height difference between the height of the parachute landing area and the height of the take-off area;

[0034] Determining the height of the parachute landing area according to the height difference and the height of the take-off area;

[0035] The method further comprises: controlling the automatic parachute opener to enter the working mode until the second relative altitude currently acquired is greater than the second altitude threshold;

[0036] determining a current fifth relative altitude in real time based on the difference between the currently acquired second altitude and the altitude of the parachute landing area, and controlling the automatic parachute opener to enter the working mode until the difference between the currently acquired second relative altitude and the currently acquired fifth relative altitude is greater than the second altitude threshold;

[0037] The determining, in real time, a current third relative altitude based on a difference between the currently acquired third altitude and the ground altitude includes:

[0038] Determining a current third relative altitude in real time based on a difference between the currently acquired third altitude and the altitude of the parachute drop zone;

[0039] The determining, in real time, a current fourth relative altitude based on a difference between the currently acquired fourth altitude and the ground altitude includes:

[0040] The current fourth relative altitude is determined in real time according to the difference between the currently acquired fourth altitude and the altitude of the parachute zone.

[0041] In a second aspect, the present invention provides an automatic parachute opener, comprising a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the automatic parachute opener control method described in the first aspect is implemented.

[0042] The present invention discloses an automatic parachute opener control method and an automatic parachute opener. The method controls the automatic parachute opener to enter a flight mode according to a currently acquired first altitude and ground altitude. In the flight mode, the method controls the automatic parachute opener to enter a working mode according to a currently acquired second altitude and ground altitude. In the working mode, the method controls the automatic parachute opener to enter an exit mode according to a currently acquired first descent speed. In the exit mode, the method controls the automatic parachute opener to enter an ignition mode according to a currently acquired second descent speed, a third altitude and ground altitude. In the ignition mode, the method controls the automatic parachute opener to ignite and to enter a landing mode according to a currently acquired fourth altitude and ground altitude. In the landing mode, the method controls the automatic parachute opener to enter an end mode according to a currently acquired third descent speed. In this way, the current status of the parachutist is accurately obtained according to the parachutist's altitude and landing speed, and the flight mode, working mode, exit mode, ignition mode, landing mode and end mode are judged in sequence, and the automatic parachute opener is controlled to switch to the corresponding mode, thereby ensuring that the current status of the parachutist is within the controllable range; at the same time, the ignition mode can ensure that the parachutist opens the parachute and lands in time, thereby ensuring the safety of the personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be regarded as limiting the scope of protection of the present invention. In each of the drawings, similar components are numbered similarly.

[0044] Figure 1 A schematic diagram of a flow chart of the automatic parachute opener control method proposed in this embodiment is shown;

[0045] Figure 2Another schematic flow chart of the automatic parachute opener control method proposed in this embodiment is shown;

[0046] Figure 3 Another schematic flow chart of the automatic parachute opener control method proposed in this embodiment is shown;

[0047] Figure 4 Another flow chart of the automatic parachute opener control method proposed in this embodiment is shown;

[0048] Figure 5 Another flow chart of the automatic parachute opener control method proposed in this embodiment is shown. DETAILED DESCRIPTION

[0049] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0050] The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the figures is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by those skilled in the art based on the embodiments of the present invention without inventive effort are intended to be within the scope of protection of the present invention.

[0051] Hereinafter, the terms "including", "having" and their cognates, which may be used in various embodiments of the present invention, are intended only to indicate specific features, numbers, steps, operations, elements, components or combinations of the foregoing items, and should not be understood as first excluding the existence of one or more other features, numbers, steps, operations, elements, components or combinations of the foregoing items or the possibility of adding one or more features, numbers, steps, operations, elements, components or combinations of the foregoing items.

[0052] Furthermore, the terms “first,” “second,” “third,” etc., are merely used for distinguishing descriptions and are not to be understood as indicating or implying relative importance.

[0053] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by those skilled in the art to which the various embodiments of the present invention pertain. The terms (such as those defined in generally used dictionaries) will be interpreted as having the same meaning as in the context of the relevant technical field and will not be interpreted as having an idealized meaning or an overly formal meaning unless clearly defined in the various embodiments of the present invention.

[0054] Example 1

[0055] The disclosed embodiments provide an automatic parachute opener control method for judging and switching between different modes according to the parachute descent speed and altitude, and for judging the ignition mode based on the judgment of multiple modes, to ensure timely ignition and cutting of the parachute bag, thereby protecting the safety of the parachuting personnel.

[0056] See Figure 1 The automatic parachute opener control method includes steps S101 to S106, and each step is described in detail below.

[0057] Step S101: Controlling the automatic parachute opener to enter flight mode according to the currently acquired first altitude and ground altitude.

[0058] In this embodiment, the automatic parachute opener is determined to have taken off based on the currently acquired first altitude and ground level. If so, control enters flight mode. The ground level represents the altitude of the parachute landing zone, and flight mode indicates that the parachutist has taken off from the landing zone. Determining flight mode allows the parachutist's current flight status to be determined, thereby preventing misjudgments of the automatic parachute opener's status.

[0059] It should be noted that each time the automatic parachute opener is powered on, a specific keystroke pattern is required for proper startup. After powering on, the digital screen displays a 10-second countdown, and the system simultaneously enters a self-test phase. This includes tests of the cutter, ignition circuit, barometer, flash memory, lifespan, and battery charge. After the self-test is complete, if no abnormalities are detected, the system enters the standby mode. If an abnormality is detected, an error code corresponding to the abnormality is displayed, and the system automatically shuts down and enters deep sleep mode. This principle of maintaining a specific keystroke pattern for proper startup and pre-startup self-test prevents accidents caused by abnormal startup and hardware damage, thereby protecting parachutists.

[0060] In a specific embodiment, the method further includes: if the parachute area height is equal to the take-off area height, obtaining and converting the take-off area air pressure to obtain the take-off area height, and using the take-off area height as the ground height; if the parachute area height is different from the take-off area height, obtaining and converting the parachute area air pressure to obtain a target conversion height; and using the target conversion height as the ground height.

[0061] In this embodiment, the altitude converted from the current air pressure is updated every two minutes in the automatic parachute opener's standby mode. When the takeoff area and the landing area are at the same altitude, the altitude converted from the current air pressure in standby mode is used as the ground altitude. In this case, the ground altitude is the altitude converted from the air pressure detected by the parachutist before takeoff, i.e., when the automatic parachute opener is deployed in the takeoff area.

[0062] When the altitude of the parachute landing area is different from the altitude of the take-off area, if only the air pressure of the parachute landing area is known, the parachutist can manually input the air pressure of the parachute landing area into the automatic parachute opener and set the air pressure compensation.

[0063] Specifically, with pressure compensation, the automatic parachute opener acquires the air pressure in the drop zone and converts it to a target altitude. This altitude is used as the ground altitude for subsequent mode determinations, enabling accurate judgment of various modes based on the drop zone altitude. This eliminates the need to configure pressure compensation on the ground. In this case, the air pressure data for the drop zone is manually input into the automatic parachute opener.

[0064] In a specific embodiment, if the altitude of the parachute landing area is higher than the altitude of the take-off area, the altitude of the take-off area is obtained as the ground altitude.

[0065] In this embodiment, if the altitude of the parachute drop zone differs from the altitude of the takeoff zone, and only the altitude difference between the takeoff zone and the parachute drop zone is known, the parachutist is required to manually input the altitude difference into the automatic parachutist before taking off from the takeoff zone and set altitude compensation to ensure the safety of the parachutist. Specifically, if only the altitude difference between the takeoff zone and the parachute drop zone is known, altitude compensation is set. Under altitude compensation, the takeoff zone air pressure is still obtained and converted to the takeoff zone altitude, and the takeoff zone altitude is set to the ground level.

[0066] See Figure 2 In a specific embodiment, step S102 includes steps S1011 to S1012, and each step is described in detail below.

[0067] Step S1011, acquiring and converting the first air pressure after the automatic parachute opener is turned on in real time to obtain the current first altitude.

[0068] In this embodiment, when the parachutist opens the automatic parachute opener, the automatic parachute opener will obtain the current first air pressure in real time through the sensor detection module, and convert the currently obtained first air pressure into the first altitude where the parachutist is currently located in real time.

[0069] Step S1012, determining the corresponding first relative altitude in real time according to the difference between the currently acquired first altitude and the ground altitude; until the currently acquired first relative altitude is greater than the first altitude threshold, controlling the automatic parachute opener to enter the flight mode.

[0070] In this embodiment, after obtaining the current first altitude in real time, the difference between the current first altitude and the ground height is calculated to obtain the current first relative altitude. A determination is then made in real time as to whether the current first relative altitude is greater than a first altitude threshold. If the first relative altitude is greater than the first altitude threshold, the automatic parachute opener is controlled to enter flight mode, indicating that the parachutist has taken off. The first altitude threshold may be 40 meters, and other values ​​may be used in other embodiments, which are not limited in this embodiment.

[0071] It should be noted that in flight mode, the air pressure measurement frequency of the automatic parachute opener's sensor module increases, and logging is activated to record the number of jumps and cutter activations. This data can be viewed in the device parameter display. The specific log can be exported from the host computer to record specific jumps. The automatic parachute opener's screen will display the flight symbol, and the automatic parachute opener will no longer update the ground altitude.

[0072] Step S102: In the flight mode, the automatic parachute opener is controlled to enter a working mode according to the currently acquired second altitude and the ground altitude.

[0073] In this embodiment, the second altitude is the altitude obtained when the automatic parachute opener enters flight mode. The operating mode indicates whether the parachutist's current location is suitable for parachuting. Only by performing the ignition operation in the correct operating mode can subsequent ignition commands be correctly executed. If the operating mode is incorrectly determined, the ignition command may be executed at the wrong time or under the wrong conditions, affecting ignition accuracy and safety.

[0074] See Figure 3 In a specific embodiment, step S102 includes steps S1021 to S1022, and each step is described in detail below.

[0075] Step S1021 , in the flight mode, real-time acquisition and conversion of the current second air pressure to obtain the current second altitude.

[0076] In this embodiment, when the automatic parachute opener enters the flight mode, the sensor detection module obtains the current second air pressure in real time, and converts the current second air pressure into the second altitude of the current parachuting person in real time.

[0077] Step S1022: determining a second relative altitude in real time based on the difference between the currently acquired second altitude and the ground altitude; and controlling the automatic parachute opener to enter the working mode until the currently acquired second relative altitude is greater than a second altitude threshold.

[0078] In this embodiment, in flight mode, the automatic parachute opener calculates the difference between the currently acquired second altitude and the ground altitude in real time to obtain the current second relative altitude. It then determines in real time whether the currently acquired second relative altitude is greater than a second altitude threshold. If the second relative altitude is greater than the second altitude threshold, the automatic parachute opener is controlled to enter operational mode, indicating that the parachutist has reached a suitable altitude for parachuting. The second altitude threshold can be 200 meters, and other values ​​are possible in other embodiments, and this embodiment is not limited thereto.

[0079] In a specific embodiment, if the altitude of the parachute area is different from the altitude of the take-off area, the altitude of the take-off area is obtained as the ground altitude, and the altitude difference between the altitude of the parachute area and the altitude of the take-off area is obtained; the altitude of the parachute area is determined according to the altitude difference and the altitude of the take-off area; step S1022 also includes: determining the current fifth relative altitude in real time according to the difference between the currently obtained second altitude and the altitude of the parachute area, until the difference between the currently obtained second relative altitude and the currently obtained fifth relative altitude is greater than the second altitude threshold, then controlling the automatic parachute opener to enter the working mode.

[0080] In this embodiment, if the altitude of the drop zone differs from the takeoff zone, and only the altitude difference between the takeoff and drop zones is known, altitude compensation is required. With altitude compensation, the automatic parachute opener determines the altitude difference between the drop zone and the takeoff zone, using the takeoff zone altitude as the ground altitude. The drop zone altitude is then determined based on this altitude difference and the takeoff zone altitude. In step S1022, a current fifth relative altitude is determined in real time based on the difference between the currently acquired second altitude and the drop zone altitude. If the difference between the currently acquired second relative altitude and the currently acquired fifth relative altitude exceeds the second altitude threshold, the automatic parachute opener is controlled to enter the operating mode.

[0081] Step S103: In the working mode, the automatic parachute opener is controlled to enter the exit mode according to the currently acquired first descent speed.

[0082] In this embodiment, the first descent speed is the current descent speed acquired in real time after the automatic parachute opener enters operating mode. Exit mode indicates that the parachutist has exited the parachute, meaning they have left the aircraft, helicopter, or other flying vehicle. By determining whether exit mode has been entered, the ignition operation can be performed when the parachute bag is in the correct position and speed. This helps improve ignition accuracy and ensures that the parachutist descends according to the predetermined trajectory and speed.

[0083] In a specific embodiment, step S103 includes: in the working mode, obtaining the current first descent speed in real time; until the currently obtained first descent speed is greater than a first speed threshold, controlling the automatic parachute opener to enter the exit mode.

[0084] In this embodiment, after the automatic parachute opener enters the operating mode, the sensor detection module obtains the current first descent speed in real time and determines in real time whether the current first descent speed continues to increase and exceeds a first speed threshold. If the current first descent speed exceeds the first speed threshold, the automatic parachute opener is controlled to enter the exit mode. The first speed threshold can be 13 m / s, and other values ​​can be used in other embodiments, which is not limited in this embodiment.

[0085] Step S104: in the exit mode, controlling the automatic parachute opener to enter the ignition mode according to the currently acquired second descent speed, the third altitude, and the ground height.

[0086] In this embodiment, the second descent speed is the current descent speed acquired in real time after the automatic parachute opener enters exit mode. The ignition mode indicates that the parachute pack can be triggered to ignite and open, thereby controlling the cutter to cut the pack's sealing components. At this point, the parachutist's descent speed and altitude after exiting the pack can be used to determine whether the parachute has opened normally. If not, the automatic parachute opener is controlled to enter ignition mode, forcing re-ignition and cutting the pack, allowing the cutter to open and descend, thereby ensuring the parachutist's personal safety.

[0087] See Figure 4 In a specific embodiment, step S104 includes steps S1041 to S1042, and each step is described in detail below.

[0088] Step S1041: In the exit mode, the current second descent speed and third air pressure are obtained in real time, and the current third altitude is determined according to the currently obtained third air pressure.

[0089] In this embodiment, after the automatic parachute opener enters the exit mode, the sensor detection module obtains the current second descent speed and the current third air pressure in real time, and converts the currently obtained third air pressure into the current third altitude in real time.

[0090] Step S1042: Determine the current third relative altitude in real time based on the difference between the currently acquired third altitude and the ground altitude. Control the automatic parachute opener to enter the ignition mode until the currently acquired second descent speed is continuously greater than the second speed threshold within the first target duration and the currently acquired third relative altitude is less than the third altitude threshold.

[0091] In this embodiment, the difference between the currently acquired third altitude and the ground height is calculated in real time to obtain the currently acquired third relative altitude.

[0092] Furthermore, the currently acquired second descent speed is compared with the second speed threshold. If, within a first target duration, all currently acquired second descent speeds are greater than the second speed threshold, and the currently acquired third relative altitude is less than the third altitude threshold, the automatic parachute opener is controlled to enter the ignition mode. The first target duration may be 500ms, the second speed threshold may be the same as the first speed threshold, 13m / s, and the third altitude threshold may be the same as the second altitude threshold, 200m. Other values ​​may be used in other embodiments and are not limited herein.

[0093] It should be noted that after leaving the chamber, if the parachutist does not open the parachute, the speed will continue to increase due to the factor of his own gravity acceleration. If the current relative altitude is lower than 200m when the exit is judged, and the speed is still greater than 13m / s when the exit is judged, it means that the parachute is in a dangerous situation at this time. The parachutist is in an emergency situation and has no awareness of self-opening the parachute, which will endanger his life. At this time, it is necessary to ignite the parachute for emergency opening.

[0094] In a specific embodiment, step S1042 includes: determining the current third relative altitude in real time based on the difference between the currently acquired third altitude and the altitude of the parachute zone.

[0095] In this embodiment, under altitude compensation, the current third relative altitude is determined in real time according to the difference between the currently acquired third altitude and the altitude of the parachute zone.

[0096] Step S105 , in the ignition mode, controlling the automatic parachute opener to ignite, and controlling the automatic parachute opener to enter a landing mode according to the currently acquired fourth altitude and the ground altitude.

[0097] In this embodiment, when the automatic parachute opener enters ignition mode, it triggers ignition, controlling the cutter to cut the parachute bag's sealing assembly, enabling the parachute to open and descend. Furthermore, the fourth altitude currently acquired in ignition mode is used to determine whether the parachutist has made a normal descent. If so, the automatic controller is controlled to enter landing mode. This determination of landing mode confirms whether the parachutist can land safely.

[0098] It should be noted that in the ignition mode, it will be determined whether the current cutter is activated normally. If it is determined not to be activated, the ignition will be repeated twice and a judgment will be made to ensure that the cutter successfully cuts the sealing component of the parachute pack to achieve successful parachute opening.

[0099] It should be noted that if the parachutist cancels their jump and does not want to ignite the system, and after entering the operating mode, they descend from the aircraft, the descent speed will not reach the ignition mode conditions. Subsequently, when the altitude falls below the fourth altitude threshold, the automatic parachute opener will determine that it has entered landing mode and will cancel the ignition determination to avoid false triggering of the ignition mode.

[0100] See Figure 5 The step of controlling the automatic parachute opener to enter the landing mode according to the current fourth altitude includes steps S1051 to S1052. Each step is described in detail below.

[0101] Step S1051: In the ignition mode, the current fourth air pressure is acquired and converted in real time to obtain the current fourth altitude.

[0102] In this embodiment, when the automatic parachute opener enters the ignition mode, the sensor detection module obtains the current fourth air pressure in real time, and converts the currently obtained fourth air pressure into the current fourth altitude in real time.

[0103] Step S1052: determining the current fourth relative altitude in real time based on the difference between the currently acquired fourth altitude and the ground altitude; and controlling the automatic parachute opener to enter the landing mode until the currently acquired fourth relative altitude is continuously less than the fourth altitude threshold within the second target time period.

[0104] In this embodiment, the difference between the currently acquired fourth altitude and the ground altitude is calculated in real time to obtain the current fourth relative altitude; and it is determined in real time whether the currently acquired fourth relative altitude is continuously less than the fourth altitude threshold within the third target time period; if the currently acquired fourth relative altitude is continuously less than the fourth altitude threshold within the third target time period, it can be known that the parachutist is landing, and the automatic parachute opener is controlled to enter the landing mode. Among them, the fourth altitude threshold can be 40m, and the third target time period can be 500ms, which are not limited in this embodiment. In this way, the judgment of the landing mode is performed after the ignition mode, which can ensure that the landing process is carried out within a controllable range, greatly reducing the possibility of accidents. When the automatic controller enters the landing mode, the digital screen of the automatic controller will turn off the display of the flight sign.

[0105] It should be noted that after the automatic parachute opener controls the parachute bag to open, the sensor detection module obtains the current parachuting speed of the parachutist in real time. If the currently acquired descent speed gradually decreases and remains equal to a certain speed threshold for a period of time, it is determined that the parachute has been fully inflated and deployed, and a deceleration effect has been achieved. At the same time, the parachute deployment is recorded for this parachute landing. The speed threshold needs to be less than the second speed threshold. For example, the second target duration can be 500ms, and the third speed threshold can be 10m / s, which are not limited here.

[0106] In a specific embodiment, step S1052 includes: determining the current fourth relative altitude in real time based on the difference between the currently acquired fourth altitude and the altitude of the parachute zone.

[0107] In this embodiment, under altitude compensation, the current fourth relative altitude is determined in real time according to the difference between the currently acquired fourth altitude and the altitude of the parachute zone.

[0108] Step S106: In the landing mode, the automatic parachute opener is controlled to enter an end mode according to the currently acquired third landing speed.

[0109] In this embodiment, the third descent speed is the current descent speed obtained after the automatic controller enters the descent mode. The end mode is when the automatic parachute opener completes all control processes for the parachute landing and enters the standby state to save energy.

[0110] In a specific embodiment, step S106 includes: in the landing mode, obtaining the current third landing speed in real time; until the currently obtained third landing speed is continuously less than the third speed threshold within a third target time period, controlling the automatic parachute opener to enter the end mode.

[0111] In this embodiment, after the automatic parachute opener enters landing mode, it obtains the current parachutist's third descent speed in real time and determines in real time whether the currently acquired third descent speed remains below the third speed threshold for a third target duration. If the currently acquired third descent speed remains below the third speed threshold for a third target duration, it is determined that the current parachutist's descent speed has met the safety landing standard, and the automatic parachute opener is controlled to enter termination mode. The third speed threshold and third target duration need to be set according to safety standards. For example, the third speed threshold can be 1.5 m / s, and the third target duration can be 10 seconds, but this embodiment does not limit these settings.

[0112] It should be noted that in end mode, the storage module of the automatic parachute opener will continue to record the log for 10 seconds. After 10 seconds, the compensation settings of this configuration will be cleared, the log recording will be turned off, and the system will return to standby mode.

[0113] The automatic parachute opener control method proposed in this embodiment controls the automatic parachute opener to enter the flight mode according to the currently acquired first altitude and ground altitude; in the flight mode, controls the automatic parachute opener to enter the working mode according to the currently acquired second altitude and ground altitude; in the working mode, controls the automatic parachute opener to enter the exit mode according to the currently acquired first descent speed; in the exit mode, controls the automatic parachute opener to enter the ignition mode according to the currently acquired second descent speed, the third altitude and the ground altitude; in the ignition mode, controls the automatic parachute opener to ignite, and controls the automatic parachute opener to enter the landing mode according to the currently acquired fourth altitude and the ground altitude; in the landing mode, controls the automatic parachute opener to enter the end mode according to the currently acquired third descent speed. In this way, the current status of the parachutist is accurately obtained according to the parachutist's altitude and landing speed, and the flight mode, working mode, exit mode, ignition mode, landing mode and end mode are judged in sequence, and the automatic parachute opener is controlled to switch to the corresponding mode, thereby ensuring that the current status of the parachutist is within the controllable range; at the same time, the ignition mode can ensure that the parachutist opens the parachute and lands in time, thereby ensuring the safety of the personnel.

[0114] Example 2

[0115] In addition, an embodiment of the present disclosure provides an automatic parachute opener, comprising a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the automatic parachute opener control method described in Example 1 is implemented.

[0116] The device provided in the embodiment of the present disclosure can execute the steps of the automatic parachute opener control method provided in Example 1, which will not be described again to avoid repetition.

[0117] An embodiment of the present disclosure provides an automatic parachute opener, which controls the automatic parachute opener to enter a flight mode according to a currently acquired first altitude and ground altitude; in the flight mode, controls the automatic parachute opener to enter a working mode according to a currently acquired second altitude and ground altitude; in the working mode, controls the automatic parachute opener to enter an exit mode according to a currently acquired first descent speed; in the exit mode, controls the automatic parachute opener to enter an ignition mode according to a currently acquired second descent speed, a third altitude and ground altitude; in the ignition mode, controls the automatic parachute opener to ignite, and controls the automatic parachute opener to enter a landing mode according to a currently acquired fourth altitude and ground altitude; in the landing mode, controls the automatic parachute opener to enter an end mode according to a currently acquired third descent speed. In this way, the current status of the parachutist is accurately obtained according to the parachutist's altitude and landing speed, and the flight mode, working mode, exit mode, ignition mode, landing mode and end mode are judged in sequence, and the automatic parachute opener is controlled to switch to the corresponding mode, thereby ensuring that the current status of the parachutist is within the controllable range; at the same time, the ignition mode can ensure that the parachutist opens the parachute and lands in time, thereby ensuring the safety of the personnel.

[0118] In all examples shown and described herein, any specific values ​​should be interpreted as merely exemplary and not limiting, and thus other examples of the exemplary embodiments may have different values.

[0119] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0120] The above-described embodiments merely illustrate several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that variations and modifications are possible without departing from the scope of the present invention, and such variations and modifications are fully within the scope of protection of the present invention.

Claims

1. A method for controlling an automatic parachute opener, characterized in that: Applied to an automatic parachute opener, the method comprises: Control the automatic parachute opener to enter flight mode according to the currently acquired first altitude and ground altitude; In the flight mode, controlling the automatic parachute opener to enter a working mode according to the currently acquired second altitude and the ground altitude; In the working mode, the automatic parachute opener is controlled to enter the exit mode according to the currently acquired first landing speed; In the exit mode, controlling the automatic parachute opener to enter the ignition mode according to the currently acquired second descent speed, the third altitude, and the ground altitude; In the ignition mode, controlling the automatic parachute opener to ignite, and controlling the automatic parachute opener to enter a landing mode according to the currently acquired fourth altitude and the ground altitude; In the landing mode, controlling the automatic parachute opener to enter the end mode according to the currently acquired third landing speed; Wherein, in the flight mode, controlling the automatic parachute opener to enter the working mode according to the currently acquired second altitude and the ground altitude includes: In the flight mode, the current second air pressure is acquired and converted in real time to obtain the current second altitude; determining a second relative altitude in real time based on the difference between the currently acquired second altitude and the ground altitude; and controlling the automatic parachute opener to enter the working mode until the currently acquired second relative altitude is greater than a second altitude threshold; Wherein, in the exit mode, controlling the automatic parachute opener to enter the ignition mode according to the currently acquired second landing speed, the third altitude, and the ground altitude includes: In the exit mode, the current second descent speed and third air pressure are acquired in real time, and the current third altitude is determined based on the currently acquired third air pressure; The automatic parachute opener is controlled to enter the ignition mode until the currently acquired second descent speed is continuously greater than the second speed threshold within a first target time period and the currently acquired third relative altitude is less than the third altitude threshold.

2. The automatic parachute opener control method according to claim 1, characterized in that: The step of controlling the automatic parachute opener to enter the flight mode according to the currently acquired first altitude and ground altitude includes: Real-time acquisition and conversion of the first air pressure after the automatic parachute opener is turned on to obtain the current first altitude; The corresponding first relative altitude is determined in real time according to the difference between the currently acquired first altitude and the ground altitude; until the currently acquired first relative altitude is greater than a first altitude threshold, the automatic parachute opener is controlled to enter the flight mode.

3. The automatic parachute opener control method according to claim 1, characterized in that: In the working mode, controlling the automatic parachute opener to enter the exit mode according to the currently acquired first descent speed includes: In the working mode, the current first descent speed is acquired in real time; until the currently acquired first descent speed is greater than a first speed threshold, the automatic parachute opener is controlled to enter the exit mode.

4. The automatic parachute opener control method according to claim 1, characterized in that: The step of controlling the automatic parachute opener to enter a landing mode according to the currently acquired fourth altitude and the ground altitude includes: In the ignition mode, the current fourth air pressure is acquired and converted in real time to obtain the current fourth altitude; The fourth relative altitude is determined in real time based on the difference between the currently acquired fourth altitude and the ground altitude; and the automatic parachute opener is controlled to enter the landing mode until the currently acquired fourth relative altitude is continuously less than a fourth altitude threshold within a second target time period.

5. The automatic parachute opener control method according to claim 1, characterized in that: In the landing mode, controlling the automatic parachute opener to enter the end mode according to the currently acquired third landing speed includes: In the landing mode, the current third landing speed is obtained in real time; until the currently obtained third landing speed is continuously less than the third speed threshold within three standard time periods, the automatic parachute opener is controlled to enter the end mode.

6. The automatic parachute opener control method according to any one of claims 1 to 5, characterized in that: The method further comprises: If the parachute zone height is equal to the take-off zone height, obtaining and converting the take-off zone air pressure to obtain the take-off zone height, and using the take-off zone height as the ground height; If the altitude of the parachute landing area is different from the altitude of the take-off area, the air pressure of the parachute landing area is obtained and converted to obtain a target conversion altitude; and the target conversion altitude is used as the ground altitude.

7. The automatic parachute opener control method according to claim 4, characterized in that: The method further comprises: If the parachute landing area height is different from the take-off area height, obtaining the take-off area height as the ground height, and obtaining the height difference between the parachute landing area height and the take-off area height; Determining the height of the parachute landing area according to the height difference and the height of the take-off area; The method further comprises: controlling the automatic parachute opener to enter the working mode until the second relative altitude currently acquired is greater than the second altitude threshold; determining a current fifth relative altitude in real time based on the difference between the currently acquired second altitude and the altitude of the parachute landing area, and controlling the automatic parachute opener to enter the working mode until the difference between the currently acquired second relative altitude and the currently acquired fifth relative altitude is greater than the second altitude threshold; The determining, in real time, a current third relative altitude based on a difference between the currently acquired third altitude and the ground altitude includes: Determining a current third relative altitude in real time based on a difference between the currently acquired third altitude and the altitude of the parachute drop zone; The determining, in real time, a current fourth relative altitude based on a difference between the currently acquired fourth altitude and the ground altitude includes: The current fourth relative altitude is determined in real time according to the difference between the currently acquired fourth altitude and the altitude of the parachute zone.

8. An automatic umbrella opener, characterized in that: The invention comprises a memory and a processor, wherein the memory stores a computer program, and when the computer program is executed by the processor, the automatic parachute opener control method according to any one of claims 1 to 7 is implemented.

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