Airbag rapid inflation method, system and intelligent terminal

Abstract

The application relates to a gas bag rapid inflation method, a system and an intelligent terminal, and relates to the technical field of high-altitude falling protection, which comprises the following steps: acquiring a gas bag inside pressure parameter of a preset gas bag; analyzing the gas bag inside pressure parameter to determine a compression danger coefficient of the gas bag; judging whether the compression danger coefficient meets preset compression danger threshold requirements; if yes, the gas bag inside pressure parameter of the gas bag is continuously acquired for cyclic judgment; if not, real-time pressure of the gas bag is acquired; analyzing the real-time pressure of the gas bag, the compression danger coefficient, a preset valve maximum opening degree and a preset gas cylinder initial pressure to determine an adaptive opening degree; acquiring a falling trigger signal; controlling a preset main gas cylinder to inflate the gas bag according to the falling trigger signal, and controlling a preset shaping gas cylinder to assist in inflating the gas bag according to the adaptive opening degree. The application has the effect of improving the inflation speed of the gas bag.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of high-altitude fall protection, in particular to a gas bag rapid inflation method, system and intelligent terminal. BACKGROUND

[0002] The fall protection suit is an important personal protective equipment, mainly used to prevent the falling accident of the person working at high altitude, or to minimize the damage to the body when falling.

[0003] In the related art, the fall protection suit usually inflates the gas bag with the gas cylinder to form a protective layer for protecting important parts of the human body. The gas cylinder outlet leads to a main gas supply pipe, the main gas supply pipe is connected to a gas distribution manifold, the gas distribution manifold branches into multiple branch pipes, each branch pipe is connected to an independent gas bag. When the sensor detects free fall, the control unit triggers the electromagnetic valve of the gas cylinder, thereby opening the gas cylinder. The gas enters the gas distribution manifold through the main gas supply pipe, and the gas distribution manifold simultaneously distributes the gas to each branch pipe to ensure that the gas bags start to inflate synchronously to form a protective layer.

[0004] In the related art described above, before the gas bag is inflated, due to the different postures of the human body, the human body may squeeze the gas bag, so that the normal gas bag inflates at a normal speed, and the inflation speed of the squeezed gas bag is slow, which still has room for improvement. SUMMARY

[0005] In order to improve the inflation speed of the gas bag, the present application provides a gas bag rapid inflation method, system and intelligent terminal.

[0006] In the first aspect, the present application provides a gas bag rapid inflation method, which adopts the following technical scheme:

[0007] A gas bag rapid inflation method, comprising:

[0008] Obtaining the gas bag inside pressure parameter of a preset gas bag;

[0009] Analyzing the gas bag inside pressure parameter to determine the squeezing danger coefficient of the gas bag;

[0010] Determining whether the squeezing danger coefficient meets the requirement of a preset squeezing danger threshold value;

[0011] If it meets, continue to obtain the gas bag inside pressure parameter of the gas bag for cyclic judgment;

[0012] If it does not meet, obtaining the real-time pressure of the gas bag;

[0013] Analyzing the real-time pressure of the gas bag, the squeezing danger coefficient, the preset maximum opening degree of the valve and the preset initial pressure of the gas cylinder to determine the adaptive opening degree;

[0014] acquiring a falling trigger signal;

[0015] controlling the preset main cylinder to inflate the airbag according to the falling trigger signal, and controlling the preset shaping cylinder to assist in inflating the airbag according to the adaptive opening degree.

[0016] By adopting the technical scheme, when it is determined that the extrusion risk coefficient does not meet the extrusion risk threshold value, the adaptive opening degree is obtained by analyzing the real-time pressure of the airbag, the extrusion risk coefficient, the maximum opening degree of the valve and the initial pressure of the cylinder, so that the shaping cylinder is controlled to assist in inflating the airbag at the adaptive opening degree, thereby ensuring that the airbag can still expand to form a protective layer in the extruded state, and further improving the inflation speed of the airbag.

[0017] Optionally, the step of analyzing the pressure parameter on the inner side of the airbag to determine the extrusion risk coefficient of the airbag comprises:

[0018] determining the real-time inner side pressure, the real-time pressure moment, the historical inner side pressure and the historical pressure moment according to the pressure parameter on the inner side of the airbag;

[0019] determining the pressure change rate by differentiating the real-time inner side pressure, the real-time pressure moment, the historical inner side pressure and the historical pressure moment;

[0020] determining the pressure accumulation by integrating the real-time inner side pressure, the real-time pressure moment, the historical inner side pressure and the historical pressure moment;

[0021] analyzing the real-time inner side pressure, the pressure change rate, the pressure accumulation and the preset extrusion risk weight to determine the extrusion risk coefficient.

[0022] By adopting the technical scheme, the real-time inner side pressure, the pressure change rate and the pressure accumulation are respectively weighted and summed to obtain the extrusion risk coefficient, and the extrusion risk coefficient is evaluated from three dimensions of the pressure itself, the change of the pressure and the duration of the pressure, thereby improving the accuracy of the extrusion risk coefficient.

[0023] Optionally, the step of differentiating the real-time inner side pressure, the real-time pressure moment, the historical inner side pressure and the historical pressure moment to determine the pressure change rate comprises:

[0024] analyzing the real-time inner side pressure and the historical inner side pressure to determine a pressure change value;

[0025] analyzing the real-time pressure moment and the historical pressure moment to determine a pressure change time;

[0026] analyzing the pressure change value and the pressure change time to determine a basic change rate;

[0027] determining whether the basic change rate meets a preset change rate threshold requirement;

[0028] if yes, defining the basic change rate as the pressure change rate;

[0029] if no, obtaining a historical change rate and defining the historical change rate as the pressure change rate.

[0030] By adopting the above technical solution, when it is determined that the basic change rate does not meet the change rate threshold requirement, the basic change rate is excluded, the historical change rate is called, and the historical change rate is defined as the pressure change rate, so that abnormal data is excluded and the accuracy of the pressure change rate is ensured.

[0031] Optionally, the step of integrating the real-time inner side pressure, the real-time pressure moment, the historical inner side pressure and the historical pressure moment to determine the pressure accumulation amount comprises:

[0032] determining whether the real-time inner side pressure meets a preset basic extrusion threshold requirement;

[0033] if yes, defining a preset zero accumulation amount as the pressure accumulation amount;

[0034] if no, analyzing the real-time pressure moment and the historical pressure moment to determine a pressure duration;

[0035] analyzing the real-time inner side pressure, the historical inner side pressure and the pressure duration to determine a real-time accumulation amount;

[0036] obtaining a historical accumulation amount;

[0037] analyzing the historical accumulation amount and the real-time accumulation amount to determine the pressure accumulation amount.

[0038] By adopting the above technical solution, when it is determined that the real-time inner side pressure meets the basic extrusion threshold requirement, the zero accumulation amount is defined as the pressure accumulation amount, so that the pressure accumulation amount is cleared when there is no extrusion, historical data interference is avoided, and the accuracy of the pressure accumulation amount is improved.

[0039] Optionally, the step of analyzing the air bag real-time pressure, the extrusion risk coefficient, the preset maximum valve opening degree and the preset air cylinder initial pressure to determine the adaptive opening degree comprises:

[0040] obtaining a safety upper limit pressure of the air bag;

[0041] analyzing the safety upper limit pressure and the air bag real-time pressure to determine a safety pressure margin;

[0042] analyzing the air bag real-time pressure and the air cylinder initial pressure to determine an air cylinder gas supply power;

[0043] The safety pressure margin, the gas cylinder gas supply power, the extrusion danger coefficient and the valve maximum opening are analyzed to determine the basic real-time opening;

[0044] The basic real-time opening is analyzed to determine the adaptive opening.

[0045] By adopting the above technical scheme, the safety pressure margin, the gas cylinder gas supply power, the extrusion danger coefficient and the valve maximum opening are analyzed to obtain the basic real-time opening, and the basic real-time opening is analyzed to obtain the adaptive opening, which can not only ensure that the air bag is normally inflated to form a protective layer, but also ensure that the pressure does not exceed the upper limit of the pressure that the air bag can withstand, thereby improving the accuracy of the adaptive opening.

[0046] Optionally, the step of analyzing the basic real-time opening to determine the adaptive opening comprises:

[0047] The real-time ambient temperature and the real-time air bag volume are obtained;

[0048] The real-time ambient temperature and the preset calibration temperature are analyzed to determine the temperature correction coefficient;

[0049] The real-time air bag volume and the preset maximum air bag volume are analyzed to determine the volume correction coefficient;

[0050] The basic real-time opening, the temperature correction coefficient and the volume correction coefficient are analyzed to determine the adaptive opening.

[0051] By adopting the above technical scheme, the basic real-time opening is corrected according to the temperature correction coefficient and the volume correction coefficient to obtain the adaptive opening, so as to consider the influence of temperature and air bag volume on the gas supply amount of the same opening, thereby improving the accuracy of the adaptive opening.

[0052] Optionally, the step of obtaining the safety upper limit pressure of the air bag comprises:

[0053] The air bag inflation frequency is obtained;

[0054] The air bag inflation frequency and the preset fatigue attenuation coefficient are analyzed to determine the fatigue attenuation ratio;

[0055] The fatigue attenuation ratio and the preset reference safety pressure are analyzed to determine the first corrected pressure;

[0056] The actual working temperature is obtained;

[0057] The actual working temperature and the first corrected pressure are analyzed to determine the safety upper limit pressure.

[0058] By adopting the technical scheme, the fatigue attenuation coefficient is obtained after the air bag inflation times and the fatigue attenuation coefficient are calculated, the first modified pressure is obtained after the reference safety pressure is modified by the fatigue attenuation ratio, and the safety upper limit pressure is obtained after the first modified pressure is modified by the actual working temperature, so as to consider the influence of the inflation times and the temperature on the air bag bearing pressure, and further improve the accuracy of the safety upper limit pressure.

[0059] Optionally, the step of analyzing the actual working temperature and the first modified pressure to determine the safety upper limit pressure comprises:

[0060] analyzing the actual working temperature and the preset standard temperature to determine the temperature offset degree;

[0061] analyzing the temperature offset degree and the preset temperature influence coefficient to determine the temperature attenuation ratio;

[0062] analyzing the reference safety pressure, the temperature attenuation ratio and the first modified pressure to determine the safety upper limit pressure.

[0063] By adopting the technical scheme, the temperature attenuation ratio is obtained after the temperature offset degree and the temperature influence coefficient are calculated, the reference safety pressure is modified by the temperature attenuation ratio, and the safety upper limit pressure is obtained after the first modified pressure is calculated, thereby further improving the accuracy of the safety upper limit pressure.

[0064] In a second aspect, the application provides a rapid air bag inflation system, which adopts the following technical scheme:

[0065] A rapid air bag inflation system comprises:

[0066] An acquisition module is configured to acquire an air bag inner side pressure parameter, an air bag real-time pressure and a falling trigger signal.

[0067] A memory is configured to store a program of the rapid air bag inflation method according to any one of the preceding aspects.

[0068] A processor, the program in the memory can be loaded and executed by the processor, and the rapid air bag inflation method according to any one of the preceding aspects is implemented.

[0069] By adopting the technical scheme, the processor loads and executes the program of the rapid air bag inflation method stored in the memory, controls the acquisition module to acquire a series of data related to the rapid air bag inflation, and obtains an adaptive opening degree after analyzing the air bag real-time pressure, the extrusion danger coefficient, the valve maximum opening degree and the air cylinder initial pressure when the extrusion danger coefficient does not meet the extrusion danger threshold requirement, so as to control the air cylinder to assist the air bag to inflate at the adaptive opening degree, ensure that the air bag can still expand to form a protective layer in the extruded state, and further improve the inflation speed of the air bag.

[0070] In a third aspect, the application provides an intelligent terminal, which employs the following technical solution:

[0071] An intelligent terminal, comprising a memory and a processor, the memory storing a computer program capable of being loaded and executed by the processor to implement the airbag rapid inflation method according to any one of the preceding aspects.

[0072] By employing the above technical solution, the processor loads and executes the computer program of the airbag rapid inflation method stored in the memory by operating the intelligent terminal, so that the adaptive opening degree is obtained after analyzing the real-time pressure of the airbag, the crush risk coefficient, the maximum opening degree of the valve and the initial pressure of the gas cylinder when it is determined that the crush risk coefficient does not meet the crush risk threshold requirement, thereby controlling the shaping gas cylinder to assist the airbag to inflate at the adaptive opening degree, ensuring that the airbag can still expand to form a protective layer in the state of being crushed, and further improving the inflation speed of the airbag.

[0073] In summary, the application has at least one of the following beneficial technical effects:

[0074] 1. By obtaining the adaptive opening degree after analyzing the real-time pressure of the airbag, the crush risk coefficient, the maximum opening degree of the valve and the initial pressure of the gas cylinder when it is determined that the crush risk coefficient does not meet the crush risk threshold requirement, the shaping gas cylinder is controlled to assist the airbag to inflate at the adaptive opening degree, ensuring that the airbag can still expand to form a protective layer in the state of being crushed, and further improving the inflation speed of the airbag;

[0075] 2. By respectively weighting and summing the real-time inside pressure, the pressure change rate and the pressure accumulation to obtain the crush risk coefficient, the crush risk coefficient is evaluated from three dimensions of the pressure itself, the change of the pressure and the duration of the pressure, and further improving the accuracy of the crush risk coefficient;

[0076] 3. By obtaining the basic real-time opening degree after analyzing the safety pressure margin, the gas cylinder gas supply power, the crush risk coefficient and the maximum opening degree of the valve, and obtaining the adaptive opening degree after analyzing the basic real-time opening degree, the normal expansion of the airbag to form a protective layer is ensured, and the pressure will not exceed the upper limit of the pressure that the airbag can withstand, and further improving the accuracy of the adaptive opening degree. BRIEF DESCRIPTION OF DRAWINGS

[0077] Figure 1 is a flowchart of an airbag rapid inflation method in an embodiment of the application.

[0078] Figure 2 is a flowchart of a step of analyzing the inside pressure parameter of the airbag to determine the crush risk coefficient of the airbag in an embodiment of the application.

[0079] Figure 3is a flow chart of the step of differentiating real-time inner side pressure, real-time pressure time, historical inner side pressure and historical pressure time to determine pressure change rate in the embodiment of the present application.

[0080] Figure 4 is a flow chart of the step of integrating real-time inner side pressure, real-time pressure time, historical inner side pressure and historical pressure time to determine pressure accumulation in the embodiment of the present application.

[0081] Figure 5 is a flow chart of the step of analyzing real-time air bag pressure, extrusion risk coefficient, preset maximum valve opening and preset initial air cylinder pressure to determine adaptive opening in the embodiment of the present application.

[0082] Figure 6 is a flow chart of the step of analyzing base real-time opening to determine adaptive opening in the embodiment of the present application.

[0083] Figure 7 is a flow chart of the step of obtaining the safety upper limit pressure of the air bag in the embodiment of the present application.

[0084] Figure 8 is a flow chart of the step of analyzing actual working temperature and first corrected pressure to determine the safety upper limit pressure in the embodiment of the present application. DETAILED DESCRIPTION

[0085] In order to make the purpose, technical scheme and advantages of the present application more clear, the following will combine the drawings of the present application with the specific embodiments to further describe the present application in detail. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application. Figures 1 to 8 The purpose, technical scheme and advantages of the present application will be more clear, the following will combine the drawings of the present application with the specific embodiments to further describe the present application in detail. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.

[0086] With reference to Figure 1 , the embodiment of the present application discloses an air bag rapid inflation method, comprising the following steps:

[0087] Step S100: obtaining air bag inner side pressure parameters of a preset air bag.

[0088] Wherein, the air bag refers to the air bag on the fall protection clothing for inflating to form a protective layer. The air bag inner side pressure parameter refers to the air bag inner side pressure detected at different time, reflecting the degree of air bag extrusion by human body, including current time and historical time data, detected by flexible pressure sensor pasted on the air bag inner side and sent to processing terminal storage.

[0089] Step S101: analyzing the air bag inner side pressure parameters to determine the extrusion risk coefficient of the air bag.

[0090] The extrusion danger coefficient refers to the degree of extrusion of the air bag. The greater the extrusion danger coefficient, the more severe the degree of extrusion. The extrusion danger coefficient is obtained by analyzing the air bag inner side pressure parameter by the processing terminal. For details, refer to the steps of Figure 2 .

[0091] Step S102: Determine whether the extrusion danger coefficient meets the requirement of the preset extrusion danger threshold.

[0092] The extrusion danger threshold refers to the minimum extrusion degree required for the air bag to be assisted with inflation. In the embodiment of the application, 1 is taken as an example. The requirement of the extrusion danger threshold refers to not greater than the extrusion danger threshold.

[0093] The processing terminal determines whether the extrusion danger coefficient is not greater than the extrusion danger threshold, so as to determine whether the degree of extrusion of the air bag is high and whether the air bag needs to be assisted with inflation.

[0094] Step S1021: If yes, continue to acquire the air bag inner side pressure parameter of the air bag for cyclic determination.

[0095] If the processing terminal determines that the extrusion danger coefficient is not greater than the extrusion danger threshold, it indicates that the degree of extrusion of the air bag is low and the air bag does not need to be assisted with inflation. Therefore, the air bag inner side pressure parameter of the air bag is continuously detected and called, so as to continuously pay attention to the change of the degree of extrusion of the air bag.

[0096] Step S1022: If no, acquire the air bag real-time pressure.

[0097] If the processing terminal determines that the extrusion danger coefficient is greater than the extrusion danger threshold, it indicates that the degree of extrusion of the air bag is high and the air bag needs to be assisted with inflation to quickly form a protection layer. Therefore, the air bag real-time pressure is detected to provide data support for subsequent determination of how to assist the air bag with inflation.

[0098] The air bag real-time pressure refers to the real-time pressure on the inner side of the air bag, which is detected by a flexible pressure sensor pasted on the inner side of the air bag and sent to the processing terminal.

[0099] Step S103: Analyze the air bag real-time pressure, the extrusion danger coefficient, the preset valve maximum opening degree and the preset gas cylinder initial pressure to determine the adaptive opening degree.

[0100] The adaptive opening degree refers to the valve opening degree of the shaping gas cylinder, which is obtained by analyzing the air bag real-time pressure, the extrusion danger coefficient, the valve maximum opening degree and the gas cylinder initial pressure by the processing terminal. For details, refer to the steps of Figure 5 .

[0101] The maximum opening degree of the valve refers to the maximum opening degree of the shaping cylinder valve, and the initial pressure of the cylinder refers to the pressure when the cylinder is filled with gas, and the specific value is determined by the operator according to the actual situation of the valve.

[0102] Step S104: Obtain a falling trigger signal.

[0103] The falling trigger signal refers to a signal indicating that the worker falls from a high altitude. The accelerometer, gyroscope and barometer installed on the protective clothing detect acceleration, attitude angle and height respectively, analyze the change rate of three-dimensional data, and determine falling if the change rate exceeds the predetermined speed. At this time, the falling trigger signal is output.

[0104] Step S105: Control the preset main cylinder to inflate the air bag according to the falling trigger signal, and control the preset shaping cylinder to assist the air bag to inflate according to the adaptive opening degree.

[0105] After the processing terminal receives the falling trigger signal, the processing terminal responds to the falling trigger signal to control the valve of the main cylinder to open, so that the main cylinder along the manifold and branch pipe inflates the gas into the air bag, and controls the valve of the shaping cylinder to open at the adaptive opening degree, so that the gas in the shaping cylinder enters the air bag to assist the inflation, and offset the influence of the air bag being squeezed.

[0106] The main cylinder refers to the cylinder for inflating all air bags. The main cylinder distributes the gas to the branch pipe through the manifold, and the branch pipe inflates the gas into each air bag. The shaping cylinder refers to the cylinder for offsetting the influence of the air bag being squeezed. Each air bag is connected with an independent cylinder.

[0107] Reference Figure 2 The step of analyzing the air bag inside pressure parameter to determine the air bag squeezing risk coefficient includes:

[0108] Step S200: Determine the real-time inside pressure, real-time pressure moment, historical inside pressure and historical pressure moment according to the air bag inside pressure parameter.

[0109] The real-time inside pressure refers to the pressure inside the air bag at the current moment, the real-time pressure moment refers to the time when the real-time inside pressure is detected, the historical inside pressure refers to the historical pressure at a fixed time from the current moment, and the historical pressure moment refers to the fixed time from the current moment, which are obtained by the processing terminal from the air bag inside pressure parameter.

[0110] Step S201: Perform differential calculation on the real-time inside pressure, real-time pressure moment, historical inside pressure and historical pressure moment to determine the pressure change rate.

[0111] The pressure change rate refers to the change amount of the pressure in a fixed time period, and reflects the extrusion speed. The pressure change rate is obtained by the processing terminal through differential calculation on the real-time inner side pressure, the real-time pressure moment, the historical inner side pressure, and the historical pressure moment. For details, refer to the step of Figure 3 .

[0112] Step S202: The real-time inner side pressure, the real-time pressure moment, the historical inner side pressure, and the historical pressure moment are integrated to determine the pressure accumulation.

[0113] The pressure accumulation refers to the accumulation of the pressure in a fixed time, and reflects the extrusion duration. The pressure accumulation is obtained by the processing terminal through integral calculation on the real-time inner side pressure, the real-time pressure moment, the historical inner side pressure, and the historical pressure moment. For details, refer to the step of Figure 4 .

[0114] Step S203: The real-time inner side pressure, the pressure change rate, the pressure accumulation, and the preset extrusion danger weight are analyzed to determine the extrusion danger coefficient.

[0115] The extrusion danger coefficient in this step is consistent with the extrusion danger coefficient in step S101. The extrusion danger coefficient is obtained by the processing terminal through weighted summation on the real-time inner side pressure, the pressure change rate, and the pressure accumulation according to the extrusion danger weight.

[0116] The extrusion danger weight refers to the weight of the pressure, the pressure change rate, and the pressure accumulation in the extrusion danger coefficient. The extrusion danger weight is determined through a falling simulation test, so as to ensure that the danger coefficient is positively correlated with the extrusion danger degree. Ten typical falling postures are selected, such as forward bending, backward leaning, and lying on the side. Each posture is repeated 10 times. The pressure, the pressure change rate, and the pressure accumulation of the airbag in each test are recorded synchronously. The inflation effect of the airbag is observed through high-speed photography. The danger level is manually marked. The danger level is taken as the dependent variable, and the pressure, the pressure change rate, and the pressure accumulation are taken as the independent variables. The extrusion danger weight is fitted through multivariate linear regression, with the constraint condition that the determination coefficient is greater than 0.9 and the sum of the coefficients is equal to 1. In the embodiment of the present application, the weight of the pressure is determined to be 0.6, the weight of the pressure change rate is defined to be 0.3, and the weight of the pressure accumulation is determined to be 0.1.

[0117] Referring to Figure 3 , the step of performing differential calculation on the real-time inner side pressure, the real-time pressure moment, the historical inner side pressure, and the historical pressure moment to determine the pressure change rate includes:

[0118] Step S300: The real-time inner side pressure and the historical inner side pressure are analyzed to determine the pressure change value.

[0119] The pressure change value refers to a change value between the current time inner pressure and the historical pressure, and a difference between the real-time inner pressure and the historical inner pressure is calculated by the processing terminal.

[0120] Step S301: Analyzing the real-time pressure time and the historical pressure time to determine the pressure change time.

[0121] The pressure change time refers to an interval time between the current time and the historical time, and a difference between the real-time pressure time and the historical pressure time is calculated by the processing terminal.

[0122] Step S302: Analyzing the pressure change value and the pressure change time to determine the basic change rate.

[0123] The basic change rate refers to a pressure change rate without excluding abnormal values, and a quotient between the pressure change value and the pressure change time is calculated by the processing terminal.

[0124] Step S303: Determining whether the basic change rate meets a requirement of a preset change rate threshold.

[0125] The change rate threshold refers to a maximum value of the pressure change rate, reflecting a maximum speed of extrusion, and a specific numerical value is determined by an operator according to actual conditions. The requirement of the change rate threshold refers to not greater than the change rate threshold.

[0126] The processing terminal determines whether the basic change rate is not greater than the change rate threshold, thereby determining whether the calculated basic change rate is an abnormal value.

[0127] Step S3031: If yes, defining the basic change rate as the pressure change rate.

[0128] If the processing terminal determines that the basic change rate is not greater than the change rate threshold, it indicates that the basic change rate is a normal value, and therefore the basic change rate is defined as the pressure change rate.

[0129] Step S3032: If no, obtaining a historical change rate, and defining the historical change rate as the pressure change rate.

[0130] If the processing terminal determines that the basic change rate is greater than the change rate threshold, it indicates that the basic change rate is an abnormal value, which may be caused by instantaneous poor contact of the sensor. Therefore, the basic change rate is excluded, and the historical change rate is called and defined as the pressure change rate, thereby avoiding misjudgment.

[0131] The historical change rate refers to a pressure change rate in a previous fixed time period, and is obtained by backup and calling of the processing terminal.

[0132] Referring to Figure 4The step of integrating the real-time inner side pressure, the real-time pressure moment, the historical inner side pressure and the historical pressure moment to determine the pressure accumulation amount comprises:

[0133] Step S400: judging whether the real-time inner side pressure meets the requirement of the preset basic extrusion threshold.

[0134] The basic extrusion threshold refers to the pressure of the airbag in the non-extrusion state, and the specific value is determined by the operator according to the actual situation. The requirement of the basic extrusion threshold refers to not greater than the basic extrusion threshold.

[0135] The processing terminal judges whether the real-time inner side pressure is not greater than the basic extrusion threshold, so as to determine whether the pressure accumulation amount needs to be cleared.

[0136] Step S401: if yes, defining the preset zero accumulation amount as the pressure accumulation amount.

[0137] If the processing terminal determines that the real-time inner side pressure is not greater than the basic extrusion threshold, it indicates that the airbag is in the non-extrusion state, and therefore the zero accumulation amount is defined as the pressure accumulation amount, so as to avoid the interference of historical data.

[0138] The zero accumulation amount refers to the pressure accumulation amount being 0, which is stored in the processing terminal by the operator.

[0139] Step S402: if no, analyzing the real-time pressure moment and the historical pressure moment to determine the pressure duration.

[0140] If the processing terminal determines that the real-time inner side pressure is greater than the basic extrusion threshold, it indicates that the airbag is in the extrusion state, and therefore the pressure duration is obtained by analyzing the real-time pressure moment and the historical pressure moment, which provides data support for subsequent determination of the pressure accumulation amount.

[0141] The pressure duration refers to the time value of the pressure duration, which is obtained by the processing terminal calculating the difference between the real-time pressure moment and the historical pressure moment.

[0142] Step S403: analyzing the real-time inner side pressure, the historical inner side pressure and the pressure duration to determine the real-time accumulation amount.

[0143] The real-time accumulation amount refers to the current pressure accumulation amount, which is obtained by the processing terminal calculating the sum of the real-time inner side pressure and the historical inner side pressure, and then calculating the product of the sum and the pressure duration divided by 2.

[0144] Step S404: obtaining the historical accumulation amount.

[0145] The historical accumulation amount refers to the past pressure accumulation amount when the airbag is in the extrusion state, which is obtained by the processing terminal backing up and calling.

[0146] Step S405: analyzing the historical accumulation and the real-time accumulation to determine the pressure accumulation.

[0147] In this step, the pressure accumulation is consistent with that in step S202, and the sum of the historical accumulation and the real-time accumulation is calculated by the processing terminal.

[0148] Referring to Figure 5 , the steps of analyzing the airbag real-time pressure, the crush risk coefficient, the preset maximum valve opening degree, and the preset cylinder initial pressure to determine the adaptive opening degree include:

[0149] Step S500: obtaining the safety upper limit pressure of the airbag.

[0150] The safety upper limit pressure refers to the upper limit of the pressure that the airbag can withstand, and the specific obtaining method refers to the steps of Figure 7 .

[0151] Step S501: analyzing the safety upper limit pressure and the airbag real-time pressure to determine the safety pressure margin.

[0152] The safety pressure margin refers to the pressure space that the airbag can still withstand, and the difference between the safety upper limit pressure and the airbag real-time pressure is calculated by the processing terminal.

[0153] Step S502: analyzing the airbag real-time pressure and the cylinder initial pressure to determine the cylinder gas supply power.

[0154] The cylinder gas supply power refers to the gas supply power of the cylinder, which is used to eliminate the interference of cylinder pressure fluctuation on the opening degree adjustment, and the difference between the cylinder initial pressure and the airbag real-time pressure is calculated by the processing terminal.

[0155] Step S503: analyzing the safety pressure margin, the cylinder gas supply power, the crush risk coefficient, and the maximum valve opening degree to determine the basic real-time opening degree.

[0156] The basic real-time opening degree refers to the valve opening degree of the shaping cylinder when the airbag receives a crush in an ideal environment, and the product of the safety pressure margin, the crush risk coefficient, and the maximum valve opening degree is calculated by the processing terminal, and the quotient between the product and the cylinder gas supply power is calculated, the overall logic is that the opening degree is proportional to the risk and the safety margin, which guarantees full gas supply in danger and bottomed by safety space to achieve dynamic balance.

[0157] Step S504: analyzing the basic real-time opening degree to determine the adaptive opening degree.

[0158] The adaptive opening degree in this step is consistent with the adaptive opening degree in step S103, and is obtained by modifying the basic real-time opening degree by the processing terminal. For details, refer to the steps of Figure 6 .

[0159] Refer to Figure 6 , the step of analyzing the basic real-time opening degree to determine the adaptive opening degree includes:

[0160] Step S600: Obtain the real-time ambient temperature and the real-time air bag volume.

[0161] The real-time ambient temperature refers to the temperature of the environment in which the air bag is located, which is detected by a temperature sensor and sent to the processing terminal. The real-time air bag volume refers to the volume of the air bag, which is collected by a strain gauge on the air bag.

[0162] Step S601: Analyze the real-time ambient temperature and the preset calibration temperature to determine the temperature correction coefficient.

[0163] The calibration temperature refers to the ideal working temperature, which is 25 degrees in the embodiments of the present application.

[0164] The temperature correction coefficient refers to the correction coefficient of the opening degree by the temperature, which is obtained by the processing terminal by calculating the quotient of the real-time ambient temperature and the calibration temperature. When the temperature is low, the coefficient is less than 1, and the opening degree is appropriately reduced (the gas density is large, and the gas supply amount is larger at the same opening degree); when the temperature is high, the coefficient is greater than 1, and the opening degree is appropriately increased (the gas density is small, and a larger opening degree is needed to ensure the gas supply amount).

[0165] Step S602: Analyze the real-time air bag volume and the preset maximum air bag volume to determine the volume correction coefficient.

[0166] The maximum air bag volume refers to the maximum volume of the air bag, which is determined by the operator according to the actual situation.

[0167] The volume correction coefficient refers to the influence coefficient of the air bag volume on the opening degree, which is obtained by the processing terminal by calculating the quotient between the real-time air bag volume and the maximum air bag volume. The smaller the volume, the smaller the opening degree, which avoids the sudden rise in pressure caused by volume compression.

[0168] Step S603: Analyze the basic real-time opening degree, the temperature correction coefficient, and the volume correction coefficient to determine the adaptive opening degree.

[0169] The adaptive opening degree in this step is consistent with the adaptive opening degree in step S504, and is obtained by the processing terminal by calculating the product of the basic real-time opening degree, the temperature correction coefficient, and the volume correction coefficient.

[0170] Refer to Figure 7 , the step of obtaining the safety upper limit pressure of the air bag includes:

[0171] Step S700: Obtain the number of airbag inflations.

[0172] The number of airbag inflations refers to the number of cycles of airbag inflation and deflation, which is accumulated by the processing terminal when the gas cylinder is inflated.

[0173] Step S701: Analyze the number of airbag inflations and the preset fatigue decay coefficient to determine the fatigue decay ratio.

[0174] The fatigue decay coefficient refers to the decay ratio of the safety pressure of the airbag with each inflation, which is taken as 0.001 in the embodiments of the application.

[0175] The fatigue decay ratio refers to the fatigue decay of the safety pressure of the airbag so far, which is obtained by the processing terminal calculating the product of the number of airbag inflations and the fatigue decay coefficient.

[0176] Step S702: Analyze the fatigue decay ratio and the preset reference safety pressure to determine the first corrected pressure.

[0177] The reference safety pressure refers to the safety pressure of the airbag without going through the inflation and deflation cycle and in an ideal environment, which is obtained by the operator inflating the airbag in an ideal environment to record the pressure when the airbag deforms irreversibly, that is, the reference safety pressure.

[0178] The first corrected pressure refers to the safety pressure corrected by fatigue damage, which is obtained by the processing terminal calculating the product of the fatigue decay ratio and the reference safety pressure to obtain the fatigue decay pressure, and then calculating the difference between the reference safety pressure and the fatigue decay pressure.

[0179] Step S703: Obtain the actual working temperature.

[0180] The actual working temperature refers to the actual temperature of the environment in which the airbag is located, which is detected by a temperature sensor and sent to the processing terminal.

[0181] Step S704: Analyze the actual working temperature and the first corrected pressure to determine the safety upper limit pressure.

[0182] The safety upper limit pressure in this step is the same as the safety upper limit pressure in step S500, which is obtained by the processing terminal further correcting the first corrected pressure according to the actual working temperature, and the specific method is referred to the steps of Figure 8 .

[0183] Referring to Figure 8 , the step of analyzing the actual working temperature and the first corrected pressure to determine the safety upper limit pressure includes:

[0184] Step S800: Analyzing the actual working temperature and the preset standard temperature to determine the temperature offset degree.

[0185] The standard temperature refers to the ideal working temperature of the airbag, and in the embodiments of the present application, 25 degrees Celsius is taken as an example.

[0186] The temperature offset degree refers to the difference between the actual working temperature and the standard temperature, and the absolute value of the difference between the actual working temperature and the standard temperature is obtained by the processing terminal.

[0187] Step S801: Analyzing the temperature offset degree and the preset temperature influence coefficient to determine the temperature attenuation ratio.

[0188] The temperature influence coefficient refers to the decay rate of the safety pressure when the temperature deviates from the standard temperature, and is obtained by airbag material test calibration, and in the embodiments of the present application, 0.005 is taken as an example.

[0189] The temperature attenuation ratio refers to the decay ratio of the airbag safety pressure under the influence of temperature, and is obtained by the processing terminal calculating the product of the temperature offset degree and the temperature influence coefficient.

[0190] Step S802: Analyzing the reference safety pressure, the temperature attenuation ratio and the first correction pressure to determine the safety upper limit pressure.

[0191] The safety upper limit pressure in this step is the same as the safety upper limit pressure in step S704, and the temperature attenuation pressure is obtained by the processing terminal calculating the product of the reference safety pressure and the temperature attenuation ratio, and the safety upper limit pressure is obtained by calculating the difference between the first correction pressure and the temperature attenuation pressure.

[0192] Based on the same inventive concept, the embodiments of the present application provide an airbag rapid inflation system, comprising:

[0193] The acquisition module is configured to acquire the airbag inside pressure parameter, the airbag real-time pressure, the falling trigger signal, the historical change rate, the historical cumulative amount, the safety upper limit pressure, the real-time environment temperature, the real-time airbag volume, the airbag inflation times and the actual working temperature.

[0194] The memory is configured to store the program of the airbag rapid inflation method.

[0195] The processor, the program in the memory can be loaded and executed by the processor and realize the airbag rapid inflation method.

[0196] Those skilled in the art can clearly understand that, for the convenience and brevity of description, only the division of the above functional modules is taken as an example, and in actual application, the above functions can be completed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. The specific working process of the system, device and unit described above can refer to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0197] The embodiment of the present application provides a computer readable storage medium, which stores a computer program capable of being loaded and executed by a processor to perform a rapid airbag inflation method.

[0198] The computer storage medium includes, for example, a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various program codes can be stored in the medium.

[0199] Based on the same inventive concept, the embodiment of the present application provides an intelligent terminal, which comprises a memory and a processor, and the memory stores a computer program capable of being loaded and executed by the processor to perform a rapid airbag inflation method.

[0200] Those skilled in the art can clearly understand that, for the convenience and brevity of description, only the division of the above functional modules is taken as an example, and in actual application, the above functions can be completed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. The specific working process of the system, device and unit described above can refer to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0201] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Any feature disclosed in the specification (including the abstract and drawings) can be replaced by other equivalent or similar features unless specifically described. That is, each feature is only an example of a series of equivalent or similar features unless specifically described.

Claims

1. A method of rapidly inflating an airbag, characterized by, The method comprises the following steps: acquiring an airbag inside pressure parameter of a preset airbag; analyzing the airbag inside pressure parameter to determine an extrusion danger coefficient of the airbag; judging whether the extrusion danger coefficient meets a preset extrusion danger threshold requirement; if yes, continuing to acquire the airbag inside pressure parameter of the airbag for cyclic judgment; if no, acquiring a real-time pressure of the airbag; analyzing the real-time pressure of the airbag, the extrusion danger coefficient, a preset maximum valve opening degree and a preset initial pressure of the gas cylinder to determine an adaptive opening degree; acquiring a falling trigger signal; controlling the preset main gas cylinder to inflate the airbag according to the falling trigger signal, and controlling the preset shaping gas cylinder to assist in inflating the airbag according to the adaptive opening degree.

2. The method of claim 1, wherein, The step of analyzing the airbag inside pressure parameter to determine the extrusion danger coefficient of the airbag comprises the following steps: determining a real-time inside pressure, a real-time pressure moment, a historical inside pressure and a historical pressure moment according to the airbag inside pressure parameter; determining a pressure change rate by differentiating the real-time inside pressure, the real-time pressure moment, the historical inside pressure and the historical pressure moment; determining a pressure accumulation amount by integrating the real-time inside pressure, the real-time pressure moment, the historical inside pressure and the historical pressure moment; analyzing the real-time inside pressure, the pressure change rate, the pressure accumulation amount and a preset extrusion danger weight to determine the extrusion danger coefficient.

3. The method of claim 2, wherein, The step of determining the pressure change rate by differentiating the real-time inside pressure, the real-time pressure moment, the historical inside pressure and the historical pressure moment comprises the following steps: analyzing the real-time inside pressure and the historical inside pressure to determine a pressure change value; analyzing the real-time pressure moment and the historical pressure moment to determine a pressure change time; analyzing the pressure change value and the pressure change time to determine a basic change rate; judging whether the basic change rate meets a preset change rate threshold requirement; if yes, defining the basic change rate as the pressure change rate; if no, acquiring a historical change rate and defining the historical change rate as the pressure change rate.

4. The method of claim 2, wherein, The step of determining the pressure accumulation amount by integrating the real-time inside pressure, the real-time pressure moment, the historical inside pressure and the historical pressure moment comprises the following steps: judging whether the real-time inside pressure meets a preset basic extrusion threshold requirement; if yes, defining a preset zero accumulation amount as the pressure accumulation amount; if no, analyzing the real-time pressure moment and the historical pressure moment to determine a pressure duration; analyzing the real-time inside pressure, the historical inside pressure and the pressure duration to determine a real-time accumulation amount; acquiring a historical accumulation amount; analyzing the historical accumulation amount and the real-time accumulation amount to determine the pressure accumulation amount.

5. The method of claim 1, wherein, The step of analyzing the real-time pressure of the airbag, the extrusion danger coefficient, the preset maximum valve opening degree and the preset initial pressure of the gas cylinder to determine the adaptive opening degree comprises the following steps: acquiring a safety upper limit pressure of the airbag; analyzing the safety upper limit pressure and the real-time pressure of the airbag to determine a safety pressure margin; analyzing the real-time pressure of the airbag and the initial pressure of the gas cylinder to determine a gas cylinder gas supply power; analyzing the safety pressure margin, the gas cylinder gas supply power, the extrusion danger coefficient and the maximum valve opening degree to determine a basic real-time opening degree; Analyzing the basic real-time opening degree to determine the adaptive opening degree.

6. The method of claim 5, wherein, The step of analyzing the basic real-time opening degree to determine the adaptive opening degree comprises: acquiring a real-time ambient temperature and a real-time airbag volume; analyzing the real-time ambient temperature and a preset calibration temperature to determine a temperature correction coefficient; analyzing the real-time airbag volume and a preset maximum airbag volume to determine a volume correction coefficient; analyzing the basic real-time opening degree, the temperature correction coefficient and the volume correction coefficient to determine the adaptive opening degree.

7. The method of claim 5, wherein, The step of acquiring the safety upper limit pressure of the airbag comprises: acquiring the number of airbag inflations; analyzing the number of airbag inflations and a preset fatigue attenuation coefficient to determine a fatigue attenuation ratio; analyzing the fatigue attenuation ratio and a preset reference safety pressure to determine a first correction pressure; acquiring an actual working temperature; analyzing the actual working temperature and the first correction pressure to determine the safety upper limit pressure.

8. The method of claim 7, wherein, The step of analyzing the actual working temperature and the first correction pressure to determine the safety upper limit pressure comprises: analyzing the actual working temperature and a preset standard temperature to determine a temperature offset degree; analyzing the temperature offset degree and a preset temperature influence coefficient to determine a temperature attenuation ratio; analyzing the reference safety pressure, the temperature attenuation ratio and the first correction pressure to determine the safety upper limit pressure.

9. A rapid airbag inflation system characterized by, comprises: an acquiring module, configured to acquire an airbag inside pressure parameter, a real-time airbag pressure and a falling trigger signal; a memory, configured to store a program of the airbag rapid inflation method according to any one of claims 1 to 8; a processor, the program in the memory can be loaded and executed by the processor, and the airbag rapid inflation method according to any one of claims 1 to 8 is implemented.

10. A smart terminal, characterized by comprises a memory and a processor, and the memory stores a computer program which can be loaded and executed by the processor to implement the airbag rapid inflation method according to any one of claims 1 to 8.

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