Automatic air supplementing method for air bag

Abstract

The invention relates to the technical field of air supply methods, in particular to an automatic air supply method for an air bag, which comprises the following steps of: 1, installing equipment; 2, induction judgment; 3, when the air pressure sensor detects that the air pressure in the air bag is lower than a set threshold value, the integrated circuit board sends out an instruction, two air inlet brushless fans are started, and the air inlet brushless fans start to work, suck air from the outside and inflate the air bag through an air inlet till the air pressure in the air bag is recovered to the normal level; 4, exhausting the air bag in the automatic mode; 5, data monitoring processing is carried out; the balloon structure is changed, the auxiliary air bag is added, normal use of the balloon in the high altitude is guaranteed, the balloon can still detect the state of the balloon in the high altitude, the brushless fan is adopted for air supplement, the balloon is small in size, light in weight, good in controllability and easy to control, the balloon is not affected by temperature and air pressure in the high altitude, the shape of the balloon can still be guaranteed in the high altitude, and the balloon can be used in the high altitude. The influence of wind power on the balloon is further reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of air replenishment methods, and in particular to an automatic air replenishment method for an air bag. Background Art

[0002] In high-altitude wind energy projects, balloons will continue to rise because the gas filled inside is lighter than air, and the air pressure around the balloons will decrease. Since balloons are made of elastic materials, the pressure difference between the inside and outside will cause the balloons to expand, increasing the volume of the balloons and decreasing the internal pressure. As the altitude increases and the temperature drops, the balloons will become brittle, and the pressure difference between the inside and outside of the balloons may cause the balloons to rupture.

[0003] The balloons used in current high-altitude wind energy projects will lose the gas inside the balloon if they rupture due to the above reasons, which will in turn cause energy and economic losses. After the balloon ruptures, it is generally difficult to find the leak point and difficult to repair it effectively. Most of the air-replenishing methods on the market are to replenish air before the balloon is used, and it is impossible to quickly replenish or exhaust air as needed during the use of the balloon.

[0004] Therefore, in view of the problem that most of the above-mentioned air-replenishing methods are to perform air-replenishing and other operations before the balloon is used, and it is impossible to quickly replenish or exhaust air as needed during the use of the balloon, which causes the balloon to be easily ruptured and difficult to repair, an automatic airbag air-replenishing method can be designed to change the balloon structure and add auxiliary airbags, so as to ensure the normal use of the balloon at high altitudes. Summary of the invention

[0005] In order to overcome the problem that the existing air-replenishing methods mostly perform air-replenishing and other operations before the balloon is used, it is impossible to quickly replenish or exhaust air as needed during the use of the balloon, which causes the balloon to be easily ruptured and difficult to repair.

[0006] The technical solution of the present invention is: an airbag automatic air-replenishing method, the steps of which are as follows: Step 1: Equipment Installation First, install the auxiliary airbag on the balloon, install two brushless air intake fans at the auxiliary airbag, install an exhaust valve at the bottom, and install a 24V battery, an integrated circuit board, a signal receiving and transmitting device, a pressure sensor, a temperature and humidity sensor, and a cloud device inside; Step 2: Sensing judgment Under normal working conditions, 24V power is supplied to the integrated circuit board, the signal receiving and transmitting device, the air pressure sensor and the temperature and humidity sensor to detect the status of the balloon's auxiliary airbag in real time. The air pressure sensor and the temperature and humidity sensor transmit the monitored data to the integrated circuit board through wires or interfaces. The integrated circuit board, as the control center, processes these signals and determines whether it is necessary to perform air replenishment and exhaust operations according to the preset logic; Step 3: Inflate the airbag in automatic mode When the air pressure sensor detects that the air pressure inside the airbag is lower than the set threshold, the integrated circuit board receives the electrical signal from the air pressure sensor, issues a command, and starts the two air intake brushless fans. The air intake brushless fans start working, sucking air from the outside and inflating the airbag through the air inlet until the air pressure inside the airbag returns to a normal level; Step 4: Deflate the airbag in automatic mode When the pressure sensor detects that the air pressure inside the airbag is higher than the set value, the integrated circuit board receives the electrical signal from the air pressure sensor and issues a command to activate the bottom exhaust valve to release the excessive air pressure; Step 5: Data monitoring and processing During or after the air replenishment and exhaust process, the signal receiving and transmitting device will upload the status data of the airbag pressure, temperature and humidity to the cloud device. The cloud device receives and processes this data, providing remote monitoring and data analysis functions. The administrator can view the airbag status in real time through the cloud platform and make necessary controls or adjustments.

[0007] Preferably, the ratio between the volume of the secondary balloon in a fully inflated state and the volume of the main balloon is 0.3.

[0008] Preferably, the maximum power of the single brushless fan in step one when running at full load is 168W, the maximum flow rate of the single brushless fan is less than 6 cubic meters per hour, the weight of the single brushless fan is 2 kilograms, and there are two sets in total.

[0009] Preferably, in step one, the maximum total current of the two brushless air intake fans operating simultaneously at full load is 7A.

[0010] Preferably, the air volume of the brushless fan in step one may be in the range of 50-200 L / min, and the wind pressure can overcome a certain pressure difference in the airbag.

[0011] Preferably, the preset logic in the integrated circuit board in step one includes an air pressure threshold, the normal range of which is 1.0-1.5 bar. When the pressure is lower than 0.9 bar, air replenishment starts, and when the pressure is higher than 1.6 bar, air exhaust starts.

[0012] Preferably, during the air replenishment process in step three, the airbag pressure can be increased to a normal level within 5 minutes. If an abnormal increase in air pressure or exceeding the safety upper limit is detected, the abnormal data will be transmitted to the cloud device through a signal receiving and transmitting device, and the air replenishment will be stopped immediately and an alarm will be triggered.

[0013] Preferably, the signal receiving and transmitting device in step five supports stable wireless communication technology and can be stably connected to the cloud device. The wireless communication technology can adopt LoRa, NB-IoT or 4G / 5G.

[0014] Preferably, the cloud device in step five includes big data analysis, historical data query, and abnormal alarm functions, and supports simultaneous access by multiple users.

[0015] Beneficial effects of the present invention: 1. The present invention changes the structure of the balloon and adds a secondary airbag to ensure the normal use of the balloon at high altitude. The balloon can still detect its status at high altitude and adopt a brushless fan for air replenishment. The balloon is small in size, light in weight, good in controllability and simple in control, so that the balloon is not affected by temperature and air pressure at high altitude, and the shape of the balloon can still be guaranteed at high altitude, further reducing the impact of wind on the balloon. Compared with the existing air replenishment method, most of the air replenishment operations are performed before the balloon is used, and it is impossible to quickly replenish and exhaust air according to needs during the use of the balloon. Through the modification of this method, the normal and stable operation of the balloon at high altitude can be greatly improved. A single balloon costs about 350,000 yuan. According to the diameter of a single balloon of 15m, the volume of the balloon is about 1766m³, the filling gas is about 1236m³, and one cubic meter of gas costs about 230 yuan, about 284,000 yuan, saving a total of about 634,000 yuan. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The flow chart of airbag air filling in automatic mode in the airbag automatic air filling method of the present invention is shown; Figure 2 The flow chart of the airbag exhaust in the automatic mode in the airbag automatic air replenishment method of the present invention is shown; Figure 3 What is shown is the process of airbag inflation and exhaust in manual mode in the airbag automatic inflation method of the present invention. DETAILED DESCRIPTION

[0017] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0018] See also Figure 1-3 The present invention provides an embodiment: an airbag automatic air-replenishing method, the steps of which are as follows: Step 1: Equipment Installation First, install the auxiliary airbag on the balloon, install two brushless air intake fans at the auxiliary airbag, install an exhaust valve at the bottom, and install a 24V battery, an integrated circuit board, a signal receiving and transmitting device, a pressure sensor, a temperature and humidity sensor, and a cloud device inside; Step 2: Sensing judgment Under normal working conditions, 24V power is supplied to the integrated circuit board, the signal receiving and transmitting device, the air pressure sensor and the temperature and humidity sensor to detect the status of the balloon's auxiliary airbag in real time. The air pressure sensor and the temperature and humidity sensor transmit the monitored data to the integrated circuit board through wires or interfaces. The integrated circuit board, as the control center, processes these signals and determines whether it is necessary to perform air replenishment and exhaust operations according to the preset logic; Step 3: Inflate the airbag in automatic mode When the air pressure sensor detects that the air pressure inside the airbag is lower than the set threshold, the integrated circuit board receives the electrical signal from the air pressure sensor, issues a command, and starts the two air intake brushless fans. The air intake brushless fans start working, sucking air from the outside and inflating the airbag through the air inlet until the air pressure inside the airbag returns to a normal level; Step 4: Deflate the airbag in automatic mode When the pressure sensor detects that the air pressure inside the airbag is higher than the set value, the integrated circuit board receives the electrical signal from the air pressure sensor and issues a command to activate the bottom exhaust valve to release the excessive air pressure; Step 5: Data monitoring and processing During or after the air replenishment and exhaust process, the signal receiving and transmitting device will upload the status data of the airbag pressure, temperature and humidity to the cloud device. The cloud device receives and processes this data, providing remote monitoring and data analysis functions. The administrator can view the airbag status in real time through the cloud platform and make necessary controls or adjustments.

[0019] Example 1 When using the process of this technical solution, the steps are as follows: Step 1: Equipment Installation First, install the auxiliary airbag on the balloon, install two air intake brushless fans at the auxiliary airbag, install an exhaust valve at the bottom, install a 24V battery, an integrated circuit board, a signal receiving and transmitting device, a pressure sensor, a temperature and humidity sensor, and a cloud device inside. The maximum power of a single brushless fan is 168W when running at full load, and the maximum flow of a single brushless fan is less than 6 cubic meters per hour. The weight of a single brushless fan is 2 kilograms. There are two sets in total. The maximum total current of the two air intake brushless fans working at the same time when running at full load is 7A. The air volume range of the brushless fan can be 50-200L / min, and the wind pressure can overcome a certain pressure difference in the airbag. Step 2: Sensing judgment Under normal working conditions, 24V power is supplied to the integrated circuit board, the signal receiving and transmitting device, the air pressure sensor and the temperature and humidity sensor to detect the status of the balloon's auxiliary airbag in real time. The air pressure sensor and the temperature and humidity sensor transmit the monitored data to the integrated circuit board through wires or interfaces. The integrated circuit board, as the control center, processes these signals and determines whether it is necessary to perform air replenishment and exhaust operations according to the preset logic; Step 3: Inflate the airbag in automatic mode When the air pressure sensor detects that the air pressure inside the airbag is lower than the set threshold, that is, the preset logic in the integrated circuit board includes the air pressure threshold, the normal range is 1.0-1.5bar, and air replenishment starts when it is lower than 0.9bar. The integrated circuit board receives the electrical signal from the air pressure sensor, issues a command, and starts the two air intake brushless fans. The air intake brushless fans start working, sucking air from the outside and inflating the airbag through the air inlet until the air pressure inside the airbag returns to a normal level. The ratio between the volume of the auxiliary airbag in a fully inflated state and the volume of the main airbag is 0.3. During the air replenishment process, the airbag pressure can be raised to a normal level within 5 minutes. If an abnormal increase in air pressure is detected or exceeds the safety upper limit, the abnormal data is transmitted to the cloud device through the signal receiving and transmitting device, and the air replenishment will be stopped immediately and an alarm will be triggered; Step 4: Data monitoring and processing During or after the air replenishment and exhaust process, the signal receiving and transmitting device will upload the status data of the airbag pressure, temperature and humidity to the cloud device. The cloud device receives and processes this data, providing remote monitoring and data analysis functions. The administrator can view the airbag status in real time through the cloud platform and make necessary controls or adjustments. The signal receiving and transmitting device supports stable wireless communication technology and can be stably connected to the cloud device. The wireless communication technology can use LoRa, NB-IoT or 4G / 5G. The cloud device includes big data analysis, historical data query, and abnormal alarm functions, and supports simultaneous access by multiple users.

[0020] Embodiment 1 can quickly and automatically inflate the balloon, thereby ensuring the normal and stable operation of the balloon.

[0021] Example 2 When using the process of this technical solution, the steps are as follows: Step 1: Equipment Installation First, install the auxiliary airbag on the balloon, install two air intake brushless fans at the auxiliary airbag, install an exhaust valve at the bottom, install a 24V battery, an integrated circuit board, a signal receiving and transmitting device, a pressure sensor, a temperature and humidity sensor, and a cloud device inside. The maximum power of a single brushless fan is 168W when running at full load, and the maximum flow of a single brushless fan is less than 6 cubic meters per hour. The weight of a single brushless fan is 2 kilograms. There are two sets in total. The maximum total current of the two air intake brushless fans working at the same time when running at full load is 7A. The air volume range of the brushless fan can be 50-200L / min, and the wind pressure can overcome a certain pressure difference in the airbag. Step 2: Sensing judgment Under normal working conditions, 24V power is supplied to the integrated circuit board, the signal receiving and transmitting device, the air pressure sensor and the temperature and humidity sensor to detect the status of the balloon's auxiliary airbag in real time. The air pressure sensor and the temperature and humidity sensor transmit the monitored data to the integrated circuit board through wires or interfaces. The integrated circuit board, as the control center, processes these signals and determines whether it is necessary to perform air replenishment and exhaust operations according to the preset logic; Step 3: Deflate the airbag in automatic mode When the air pressure sensor detects that the air pressure inside the airbag is higher than the set threshold, that is, the preset logic in the integrated circuit board includes the air pressure threshold, the normal range is 1.0-1.5 bar, and exhaust begins when it is higher than 1.6 bar, the integrated circuit board receives the electrical signal from the air pressure sensor, issues a command, and the bottom exhaust valve is activated to release the excessive air pressure until the air pressure inside the airbag returns to the normal level. The ratio between the volume of the auxiliary airbag in the fully inflated state and the volume of the main balloon is 0.3; Step 4: Data monitoring and processing During or after the air replenishment and exhaust process, the signal receiving and transmitting device will upload the status data of the airbag pressure, temperature and humidity to the cloud device. The cloud device receives and processes this data, providing remote monitoring and data analysis functions. The administrator can view the airbag status in real time through the cloud platform and make necessary controls or adjustments. The signal receiving and transmitting device supports stable wireless communication technology and can be stably connected to the cloud device. The wireless communication technology can use LoRa, NB-IoT or 4G / 5G. The cloud device includes big data analysis, historical data query, and abnormal alarm functions, and supports simultaneous access by multiple users.

[0022] Embodiment 2 can quickly and automatically deflate the balloon, thereby ensuring the normal and stable operation of the balloon.

[0023] Example 3 When using the process of this technical solution, the steps are as follows: Step 1: Equipment Installation First, install the auxiliary airbag on the balloon, install two air intake brushless fans at the auxiliary airbag, install an exhaust valve at the bottom, install a 24V battery, an integrated circuit board, a signal receiving and transmitting device, a pressure sensor, a temperature and humidity sensor, and a cloud device inside. The maximum power of a single brushless fan is 168W when running at full load, and the maximum flow of a single brushless fan is less than 6 cubic meters per hour. The weight of a single brushless fan is 2 kilograms. There are two sets in total. The maximum total current of the two air intake brushless fans working at the same time when running at full load is 7A. The air volume range of the brushless fan can be 50-200L / min, and the wind pressure can overcome a certain pressure difference in the airbag. Step 2: Sensing judgment Under normal working conditions, 24V power is supplied to the integrated circuit board, the signal receiving and transmitting device, the air pressure sensor and the temperature and humidity sensor to detect the status of the balloon's auxiliary airbag in real time. The air pressure sensor and the temperature and humidity sensor transmit the monitored data to the integrated circuit board through wires or interfaces. The integrated circuit board, as the control center, processes these signals and determines whether it is necessary to perform air replenishment and exhaust operations according to the preset logic; Step 3: Inflate the airbag in automatic mode When the air pressure sensor detects that the air pressure inside the airbag is lower than the set threshold, that is, the preset logic in the integrated circuit board includes the air pressure threshold, the normal range is 1.0-1.5bar, and air replenishment starts when it is lower than 0.9bar, and exhaust starts when it is higher than 1.6bar. The integrated circuit board receives the electrical signal from the air pressure sensor, issues a command, and starts the two air intake brushless fans. The air intake brushless fans start working, sucking air from the outside and inflating the airbag through the air inlet until the air pressure inside the airbag returns to normal levels. The ratio between the volume of the auxiliary airbag in a fully inflated state and the volume of the main airbag is 0.3. During the air replenishment process, the airbag pressure can be raised to a normal level within 5 minutes. If the air pressure is detected to be abnormally increased or exceeds the safety upper limit, the abnormal data is transmitted to the cloud device through the signal receiving and transmitting device, and the air replenishment will be stopped immediately and an alarm will be triggered; Step 4: Deflate the airbag in automatic mode When the air pressure sensor detects that the air pressure inside the airbag is higher than the set threshold, the integrated circuit board receives the electrical signal from the air pressure sensor and issues a command, and the bottom exhaust valve is activated to release the excessive air pressure until the air pressure inside the airbag returns to a normal level. The ratio between the volume of the auxiliary airbag in a fully inflated state and the volume of the main balloon is 0.3; Step 5: Data monitoring and processing During or after the air replenishment and exhaust process, the signal receiving and transmitting device will upload the status data of the airbag pressure, temperature and humidity to the cloud device. The cloud device receives and processes this data, providing remote monitoring and data analysis functions. The administrator can view the airbag status in real time through the cloud platform and make necessary controls or adjustments. The signal receiving and transmitting device supports stable wireless communication technology and can be stably connected to the cloud device. The wireless communication technology can use LoRa, NB-IoT or 4G / 5G. The cloud device includes big data analysis, historical data query, and abnormal alarm functions, and supports simultaneous access by multiple users.

[0024] Embodiment 3 can quickly and automatically perform air-inflation and air-exhaust operations on the balloon, thereby ensuring the normal and stable operation of the balloon.

[0025] Example 4 When using the process of this technical solution, the steps are as follows: Step 1: Equipment Installation First, install the auxiliary airbag on the balloon, install two air intake brushless fans at the auxiliary airbag, install an exhaust valve at the bottom, install a 24V battery, an integrated circuit board, a signal receiving and transmitting device, a pressure sensor, a temperature and humidity sensor, and a cloud device inside. The maximum power of a single brushless fan is 168W when running at full load, and the maximum flow of a single brushless fan is less than 6 cubic meters per hour. The weight of a single brushless fan is 2 kilograms. There are two sets in total. The maximum total current of the two air intake brushless fans working at the same time when running at full load is 7A. The air volume range of the brushless fan can be 50-200L / min, and the wind pressure can overcome a certain pressure difference in the airbag. Step 2: Sensing judgment Under normal working conditions, 24V power is supplied to the integrated circuit board, the signal receiving and transmitting device, the air pressure sensor and the temperature and humidity sensor to detect the status of the balloon's auxiliary airbag in real time. The air pressure sensor and the temperature and humidity sensor transmit the monitored data to the integrated circuit board through wires or interfaces. The integrated circuit board, as the control center, processes these signals and determines whether it is necessary to perform air replenishment and exhaust operations according to the preset logic; Step 3: Data monitoring and processing The signal receiving and transmitting device will upload the real-time status data of the airbag pressure, temperature and humidity to the cloud device. The cloud device receives and processes this data, providing remote monitoring and data analysis functions. The administrator can view the airbag status in real time through the cloud platform and make necessary controls or adjustments. The signal receiving and transmitting device supports stable wireless communication technology and can be stably connected to the cloud device. The wireless communication technology can use LoRa, NB-IoT or 4G / 5G. The cloud device includes big data analysis, historical data query, abnormal alarm functions, and supports simultaneous access by multiple users. Step 4: The user can manually set the air pressure threshold on the operation panel in the cloud device according to the temperature and altitude. The integrated circuit board receives data from the air pressure sensor and the temperature and humidity sensor, performs preliminary processing and analysis, and determines whether the current air pressure, temperature and humidity are within the set range. The data fed back by the air pressure sensor is compared with the set air pressure threshold. If the current air pressure is higher or lower than the threshold, the integrated circuit board will send a signal to control the start and stop of the brushless fan. If the air pressure inside the balloon needs to be quickly reduced, it can be achieved by controlling the opening and closing of the exhaust valve, thereby ensuring the normal and stable operation of the balloon.

[0026] Through Example 4, the air pressure threshold and the start and stop of the fan can be set according to the temperature, altitude, etc. in the manual mode, so as to ensure the normal and stable operation of the balloon.

[0027] Through the above steps, the present invention changes the structure of the balloon and adds an auxiliary airbag to ensure the normal use of the balloon at high altitudes. The status of the balloon can still be detected at high altitudes, and a brushless fan is used for air replenishment. The balloon has a small size, light weight, good controllability, and simple control, so that the balloon is not affected by temperature and air pressure at high altitudes, and the shape of the balloon can still be guaranteed at high altitudes, further reducing the impact of wind on the balloon, so as to solve the problem that most of the existing air replenishment methods are to perform air replenishment and other operations before the balloon is used, and it is impossible to quickly replenish and exhaust air according to needs during the use of the balloon, resulting in the balloon being prone to rupture and difficult to repair.

[0028] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the spirit of the present invention.

Claims

1. An automatic air bag filling method, characterized in that: The steps are as follows: Step 1: Equipment Installation First, install the auxiliary airbag on the balloon, install two brushless air intake fans at the auxiliary airbag, install an exhaust valve at the bottom, and install a 24V battery, an integrated circuit board, a signal receiving and transmitting device, a pressure sensor, a temperature and humidity sensor, and a cloud device inside; Step 2: Sensing judgment Under normal working conditions, 24V power is supplied to the integrated circuit board, the signal receiving and transmitting device, the air pressure sensor and the temperature and humidity sensor to detect the status of the balloon's auxiliary airbag in real time. The air pressure sensor and the temperature and humidity sensor transmit the monitored data to the integrated circuit board through wires or interfaces. The integrated circuit board, as the control center, processes these signals and determines whether it is necessary to perform air replenishment and exhaust operations according to the preset logic; Step 3: Inflate the airbag in automatic mode When the air pressure sensor detects that the air pressure inside the airbag is lower than the set threshold, the integrated circuit board receives the electrical signal from the air pressure sensor, issues a command, and starts the two air intake brushless fans. The air intake brushless fans start working, sucking air from the outside and inflating the airbag through the air inlet until the air pressure inside the airbag returns to a normal level; Step 4: Deflate the airbag in automatic mode When the pressure sensor detects that the air pressure inside the airbag is higher than the set value, the integrated circuit board receives the electrical signal from the air pressure sensor and issues a command to activate the bottom exhaust valve to release the excessive air pressure; Step 5: Data monitoring and processing During or after the air replenishment and exhaust process, the signal receiving and transmitting device will upload the status data of the airbag pressure, temperature and humidity to the cloud device. The cloud device receives and processes this data, providing remote monitoring and data analysis functions. The administrator can view the airbag status in real time through the cloud platform and make necessary controls or adjustments.

2. The airbag automatic air replenishment method according to claim 1, characterized in that: The ratio between the volume of the secondary balloon in the fully inflated state and the volume of the main balloon is 0.

3.

3. The airbag automatic air-replenishing method according to claim 1, characterized in that: The maximum power of the single brushless fan in step one is 168W when running at full load, the maximum flow rate of the single brushless fan is less than 6 cubic meters per hour, the weight of the single brushless fan is 2 kilograms, and there are two sets in total.

4. The airbag automatic air-replenishing method according to claim 3, characterized in that: In step 1, the maximum total current of the two brushless air intake fans working simultaneously at full load is 7A.

5. The airbag automatic air-replenishing method according to claim 4, characterized in that: The air volume of the brushless fan in step one can range from 50 to 200 L / min, and the wind pressure can overcome a certain pressure difference in the airbag.

6. The airbag automatic air-replenishing method according to claim 1, characterized in that: The preset logic in the integrated circuit board in step 1 includes an air pressure threshold, the normal range of which is 1.0-1.5 bar. When it is lower than 0.9 bar, air replenishment begins, and when it is higher than 1.6 bar, air exhaust begins.

7. The airbag automatic air-replenishing method according to claim 1, characterized in that: During the air replenishment process in step three, the airbag pressure can be increased to a normal level within 5 minutes. If an abnormal increase in air pressure or exceeding the safety upper limit is detected, the abnormal data will be transmitted to the cloud device through a signal receiving and transmitting device, and the air replenishment will be stopped immediately and an alarm will be triggered.

8. The airbag automatic air-replenishing method according to claim 1, characterized in that: The signal receiving and transmitting device in step five supports stable wireless communication technology and can be stably connected to the cloud device. The wireless communication technology can adopt LoRa, NB-IoT or 4G / 5G.

9. The airbag automatic air-replenishing method according to claim 1, characterized in that: The cloud device in step five includes big data analysis, historical data query, and abnormal alarm functions, and supports simultaneous access by multiple users.

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