Cabin pollution monitoring and fault diagnosis system and method, electronic device and medium

Abstract

The invention discloses a cabin pollution monitoring and fault diagnosis system and method, an electronic device and a medium, and the system comprises a sensor module which is used for obtaining the concentration data of cabin pollutants, the concentration data of atmospheric pollutants and the service life data of air purification equipment; the data processing module comprises a data analysis unit, a fault diagnosis unit and a sending unit, and the data analysis unit is used for comparing the cockpit pollutant concentration data with a preset threshold value to obtain target pollutant information; the fault diagnosis unit is used for obtaining a fault event set according to the target pollutant information, the service life data and the concentration data of the atmospheric pollutants; the sending unit is used for sending the fault event set and the target pollutant information; and the alarm module is used for receiving the fault event set and the target pollutant information and giving an alarm. According to the invention, the problem that cockpit pollution may cause harm to a human body, and may cause some faults of a flight tool, which may cause potential safety hazards to passengers, is solved.

Description

Technical Field

[0001] The present invention relates to the field of aerospace technology, and in particular to a cabin contamination monitoring and fault diagnosis system, method, electronic device and storage medium. Background Art

[0002] In the aerospace field, there may be odor or other pollution in the cockpit (such as carbon monoxide (CO), carbon dioxide (CO2), volatile organic compounds (VOC), PM2.5, PM3.0). In addition to the harm to the human body, these cabin pollutions may also indicate that there may be certain faults in the aircraft, which will pose a great safety hazard to passengers.

[0003] Therefore, there is an urgent need for a solution to detect and warn of cabin contamination, so as to promptly remind staff to eliminate cabin contamination and the aircraft failure that cabin contamination may represent, thereby reducing safety risks for passengers in flight. Summary of the invention

[0004] The present invention provides a cabin contamination monitoring and fault diagnosis system, method, electronic device and medium, aiming to effectively solve the technical problem in the prior art that cabin contamination, in addition to the possible harm to the human body, also represents that certain faults may exist in the aircraft, and these faults may cause great safety hazards to passengers.

[0005] According to a first aspect of the present invention, the present invention provides a cabin pollution monitoring and fault diagnosis system, comprising: a sensor module, for obtaining concentration data of cabin pollutants, concentration data of atmospheric pollutants and life data of air purification equipment; a data processing module, the data processing module is communicatively connected to the sensor module, the data processing module comprises a data analysis unit, a fault diagnosis unit and a sending unit, the data analysis unit is used to compare the cabin pollutant concentration data with a preset threshold value to obtain target pollutant information exceeding the preset threshold value, the fault diagnosis unit is used to receive the target pollutant information and, in combination with the concentration data of atmospheric pollutants and the life data of the air purification equipment, associate the target pollutant information with a preset fault event to obtain a fault event set corresponding to the target pollutant information, the sending unit is used to send the fault event set and the target pollutant information; an alarm module, the alarm module is communicatively connected to the data processing module, for receiving the fault event set and the target pollutant information, and executing a corresponding alarm.

[0006] Furthermore, the data processing module also includes: an operation suggestion generation unit, which is communicatively connected to the fault diagnosis unit, and the operation suggestion generation unit is used to receive the fault event set obtained by the fault diagnosis unit, generate operation suggestions for solving the fault event according to the fault event in the fault event set, and send the operation suggestions to the alarm module. The alarm module is also used to receive the operation suggestions and display the operation suggestions to the crew members.

[0007] Furthermore, the sensor module includes: an equipment life data acquisition unit, which is used to obtain the VOC concentration value and PM concentration value at the inlet and outlet of the air purification equipment, and a change curve of the influence of the air purification equipment on the VOC and PM filtering effect with the service life; and compare the VOC concentration value and the PM concentration value with the change curve to obtain the life data of the air purification equipment.

[0008] Furthermore, the diagnostic unit includes: a comparison table acquisition subunit, which is used to obtain a comparison table of preset fault events and pollutant information, wherein the comparison table represents pollutant information that may be caused by the fault event; and compares the target pollutant information, the concentration data of the atmospheric pollutants, and the life data of the air purification equipment with the comparison table to obtain the fault event set.

[0009] Furthermore, the system also includes: a priority classification module, which is communicatively connected to the data module, and the priority classification module is used to utilize the target pollutant information and combine the concentration data of the atmospheric pollutants and the life data of the air purification equipment to prioritize the fault events in the fault event set, obtain priority information, and send the priority information to the alarm module. The alarm module is also used to execute different types of alarms according to fault events with different priority information after receiving the priority information.

[0010] Furthermore, the priority division module includes: a comparison unit and a division unit, the comparison unit is used to obtain a comparison table of preset fault events and excessive gas types, the comparison table represents pollutant information caused by the fault event, and compares the target pollutant information, the concentration data of the atmospheric pollutants, and the life data of the air purification equipment with the comparison table; the division unit is used to prioritize according to the amount of target pollutant information contained in the same fault event in the comparison table, if a fault event in the comparison table contains the most target pollutant information, then the priority is the highest, if another fault event in the comparison table contains the least target pollutant information and is greater than zero, then the priority is the lowest.

[0011] Furthermore, the alarm module includes: a warning light, a display screen, a buzzer, and a vibrator.

[0012] Furthermore, the data processing module also includes: a storage unit for storing data acquired and / or generated by the sensor module, the data analysis unit and the fault diagnosis unit.

[0013] Further, the system also includes: a classification module for classifying cabin pollution, wherein the classification module includes: a classification acquisition unit for acquiring three pre-classified pollutant information, wherein a Class I event is a severe air pollution event, a Class II event is a good air quality event, and a Class III event is an excellent air quality event; a pollution level judgment unit for judging the cabin pollution level using the target pollutant information, the concentration data of atmospheric pollutants, and the life data of the air purification equipment; if the cabin pollution level is a Class I event, an alarm is issued, and the alarm information, the concentration data of the cabin pollutants, and the operation suggestion are displayed, and the operation suggestion is to remind the pilot to continue to observe or land nearby; if the cabin pollution level is a Class II event, the alarm is turned off, and after accepting the display operation, the concentration data of the cabin pollutants and the operation suggestion are displayed, and the operation suggestion is to perform a post-flight inspection or replace the air purification device by the maintenance staff; if the cabin pollution level is a Class III event, the alarm is turned off, and after accepting the display operation, the concentration data of the cabin pollutants are displayed, and there is no operation suggestion.

[0014] A second aspect of the present invention provides a cabin pollution monitoring and fault diagnosis method, comprising: obtaining cabin pollutant concentration data, atmospheric pollutant concentration data and air purification equipment life data; comparing the cabin pollutant concentration data with a preset threshold value to obtain target pollutant information exceeding the preset threshold value; using the target pollutant information, the atmospheric pollutant concentration data and the air purification equipment life data, associating the target pollutant information with preset fault events to obtain a fault event set corresponding to the target pollutant information; receiving the fault event set and the target pollutant information, and executing corresponding alarms.

[0015] According to the third aspect of the present invention, the present invention also provides an electronic device, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the computer program, the above-mentioned cabin contamination monitoring and fault diagnosis method is implemented.

[0016] According to another aspect of the present invention, the present invention further provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the above-mentioned cabin contamination monitoring and fault diagnosis method is implemented.

[0017] Through one or more of the above embodiments of the present invention, at least the following technical effects can be achieved:

[0018] In the technical solution disclosed in the present invention, cabin pollutants can be detected, and some parts of the aircraft can be detected in combination with the concentration data of atmospheric pollutants and the life data of air purification equipment. After detecting that the pollutants exceed the standard and the causes of the pollutants exceed the standard, an alarm is executed, thereby being able to promptly remind the staff to eliminate the cabin pollution and the aircraft failure that the cabin pollution may represent. The staff can quickly locate the failure of the aircraft, thereby reducing the safety risks of passengers' flights. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The technical solutions and other beneficial effects of the present invention will be made apparent by describing in detail the specific embodiments of the present invention in conjunction with the accompanying drawings.

[0020] Figure 1 A schematic block diagram of the structure of a cabin contamination monitoring and fault diagnosis system provided by an embodiment of the present invention;

[0021] Figure 2 A schematic block diagram of the structure of a cabin contamination monitoring and fault diagnosis system provided by an embodiment of the present invention;

[0022] Figure 3 A flow chart of a method for cabin contamination monitoring and fault diagnosis provided by an embodiment of the present invention;

[0023] Figure 4 A schematic block diagram of the structure of an electronic device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiment of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiment of the present invention. Obviously, the described embodiment is only a part of the embodiment of the present invention, not all of the embodiments. Based on the embodiment of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the term "and / or" herein is merely a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " herein, unless otherwise specified, generally indicates that the associated objects before and after are in an "or" relationship.

[0026] On January 30, 2018, Spirit Airlines flight NK-517 was on its way from Akron / Canton to Fort Lauderdale. About an hour before the destination, a passenger complained about a strange smell on the plane. After confirmation by the flight attendant, the pilot was notified and the plane descended early. About 20 minutes before the plane landed, the captain confirmed that there was a strange smell in the cockpit and put on an oxygen mask. Below 10,000 feet, the captain decompressed the cabin and the air in the cabin improved. The captain was almost incapacitated when the plane landed. It was later confirmed that the plane had a serious engine (PW1127G) gasket rupture accident.

[0027] In January 2019, a small plane carrying Argentine football player Sala crashed in the English Channel. According to the investigation report, one of the reasons was that the exhaust pipe equipped with the heater sleeve failed, causing the exhaust gas from the aircraft to enter the cabin through the cabin air conditioning system, and the pilot was affected by carbon monoxide poisoning.

[0028] In 2012, a Germanwings plane nearly crashed. The two pilots in the cockpit showed symptoms of poisoning from the polluted gas they inhaled. They were almost unconscious and were only able to land the plane at Cologne-Bonn Airport.

[0029] The above incidents are not isolated cases.

[0030] According to the German Bureau of Aircraft Accident Investigation, about 633 smoke ingress incidents (harmful gases entering the cabin) were recorded between 2006 and 2013. Ten of these incidents caused long-term health effects on the parties involved, making the problem a health and safety hazard for pilots and passengers.

[0031] According to incomplete statistics from the Civil Aviation University of China, from 1980 to 2013, there were a total of 486 accident signs and 18 accidents related to cabin air pollution (from 1994 to 2012, there were 56 accident signs in China; from 1980 to 2013, there were 430 accident signs and 18 accidents abroad).

[0032] Through the analysis of 399 accidents / incidents related to the cabin air environment from 2004 to 2014, the causes of accidents / incidents can be classified into 8 categories, among which VOC pollution, smoke and odor account for the second largest proportion after pressure abnormality and fire; and the main causes of VOC (volatile organic compounds) pollution are engine / APU (Auxiliary Power Unit) bleed air pollution, external atmosphere, cabin pollution or purification equipment failure. From the above cases and data, it can be seen that cabin pollutant concentration warning and fault diagnosis are very important for ensuring flight safety and crew health; it plays a very important role in warning whether the engine / APU bleed air and purification equipment are abnormal.

[0033] Therefore, the embodiments of the present application provide a cabin contamination monitoring and fault diagnosis system, method, electronic device and storage medium, which are capable of monitoring, diagnosing and warning cabin contamination, thereby promptly reminding staff to eliminate cabin contamination and the failure of the aircraft that cabin contamination may represent, thereby reducing the safety risks of passengers' flights.

[0034] Figure 1 The cabin contamination monitoring and fault diagnosis system provided by an embodiment of the present invention includes:

[0035] A sensor module 1, a data processing module 2 and an alarm module 3, wherein the sensor module 1 is used to obtain the concentration data of cabin pollutants, the concentration data of atmospheric pollutants and the life data of air purification equipment;

[0036] The data processing module 2 is communicatively connected to the sensor module 1, wherein the data processing module 2 includes a data analysis unit, a fault diagnosis unit and a sending unit, wherein the data analysis unit is used to compare the cabin pollutant concentration data with a preset threshold value to obtain target pollutant information exceeding the preset threshold value, the fault diagnosis unit is used to receive the target pollutant information and combine the concentration data of the atmospheric pollutants and the life data of the air purification equipment to associate the target pollutant information with a preset fault event to obtain a fault event set corresponding to the target pollutant information, and the sending unit is used to send the fault event set and the target pollutant information;

[0037] The alarm module 3 is in communication with the data processing module 2 and is used to receive a set of fault events and target pollutant information and execute corresponding alarms.

[0038] In this embodiment, the types of cabin pollutants include CO, CO2, PM, and VOC, and the types of air pollutants include CO, CO2, PM, and VOC. The concentration data of cabin pollutants include the concentration data of CO, CO2, PM, and VOC, and the concentration data of air pollutants include the concentration data of CO, CO2, PM, and VOC. In addition, Figure 2 As shown, the sensor module 1 is a data acquisition device, which uses three sensors to obtain the concentration data of cabin pollutants, the concentration data of atmospheric pollutants and the life data of air purification equipment respectively. The data collected by the three sensors are then collected by the data collector. The data processing module 2 can be implemented locally or on a cloud platform. This embodiment uses a monitoring and alarm cloud platform to implement data collection, data analysis, problem diagnosis and alarm module 3. In this embodiment, the alarm module 3 is used to execute the sending of alarm information. The specific alarm can be received by the intelligent terminal to issue an alarm. For example, the alarm module 3 generates vibration information, and the intelligent terminal receives the intelligent information to generate vibration, thereby implementing the alarm.

[0039] Each different type of cabin pollutant has a different preset threshold, i.e., the warning value in Table 1. Only when the cabin pollutant of the corresponding type exceeds the preset threshold, it is considered that the cabin pollutant of that type exceeds the standard and is the target pollutant. The preset threshold is shown in the following table:

[0040]

[0041]

[0042] Table 1 Preset threshold values ​​of cabin pollutant concentration

[0043] In this embodiment, the alarm module 3 is also used to divide the warning value into a gradient, a first-level warning value, a second-level warning value and a third-level warning value. When the alarm module 3 executes an alarm, if the first-level warning value is met, a first-level alarm is performed, if the second-level warning value is met, a second-level alarm is performed, and if the third-level warning value is met, a third-level alarm is performed. The warning value in Table 1 is a third-level warning value, and the first-level warning value and the second-level warning value are not shown in Table 1. The following example illustrates: when the CO concentration is greater than 11 mg / m 3 And less than or equal to 13mg / m 3 The first level warning value is when the CO concentration is greater than 13 mg / m 3 And less than or equal to 15mg / m 3 When the CO2 concentration is greater than 0.6% and less than or equal to 0.8%, it is the first warning value; when the CO2 concentration is greater than 0.8% and less than or equal to 1.0%, it is the second warning value; when the PM concentration is greater than 0.15mg / m 3 And less than or equal to 0.17mg / m 3 The first level warning value is in the range of 0.17 mg / m 3 And less than or equal to 0.20mg / m 3 The second level warning value is when the VOC concentration is greater than 1.5 mg / m 3 And less than or equal to 1.7mg / m 3 The first level warning value is when the VOC concentration is greater than 1.7 mg / m 3 And less than or equal to 2mg / m 3 It is the second-level warning value when it is in the interval; it should be noted that the setting of the first-level warning value, the second-level warning value, and the third-level warning value in this embodiment only lists one of them. The scheme of setting the first-level warning value, the second-level warning value, and the third-level warning value to other values ​​is also within the protection scope of this application.

[0044] Therefore, the cabin pollution monitoring and fault diagnosis system provided in the embodiment of the present application can detect cabin pollutants, and can combine the concentration data of atmospheric pollutants and the life data of air purification equipment to detect some parts of the aircraft. After detecting that the pollutants exceed the standard and the cause of the pollutants exceed the standard, it executes an alarm, thereby being able to promptly remind the staff to eliminate the cabin pollution and the aircraft fault that the cabin pollution may represent. The staff can quickly locate the fault of the aircraft, thereby reducing the safety risks of passengers' flights.

[0045] In some embodiments, the data processing module 2 also includes: an operation suggestion generation unit, which is communicatively connected to the fault diagnosis unit, and the operation suggestion generation unit is used to receive a set of fault events obtained by the fault diagnosis unit, and generate an operation suggestion for solving the fault event according to the fault event in the fault event set, and send the operation suggestion to the alarm module 3. The alarm module 3 is also used to receive the operation suggestion and display the operation suggestion to the crew members.

[0046] In this embodiment, an operational suggestion for solving the fault can be generated based on the fault event in the fault event set, and the crew can perform operations based on the operational suggestion without the crew having to look up materials or recall solutions. This not only saves the crew time in finding solutions to the fault events, but also reduces the requirements for the crew in solving the faults.

[0047] In some embodiments, the sensor module 1 includes: an equipment life data acquisition unit, which is used to obtain the VOC concentration value and PM concentration value at the inlet and outlet of the air purification equipment, and a change curve of the influence of the air purification equipment on the VOC and PM filtering effect with the service life; and compare the VOC concentration value and PM concentration value with the change curve to obtain the life data of the air purification equipment.

[0048] Among them, the equipment life acquisition unit can be composed of an aircraft air purification device status monitoring sensor and an aircraft air purification device controller. The aircraft air purification device status monitoring sensor measures the VOC concentration and PM concentration at the inlet and outlet of the cabin air purification device; the aircraft air purification device controller receives the inlet and outlet VOC concentration and PM concentration measured by the air purification device status monitoring sensor, calculates the VOC and PM concentration change rates, and compares them with the VOC and PM concentration change curves of the new air purification device built into the controller to obtain the air purification equipment life data.

[0049] In this embodiment, the concentration data of cabin pollutants is obtained by a cabin pollutant concentration sensor, which includes a CO concentration sensor, a CO2 concentration sensor, a VOC concentration sensor, and a PM concentration sensor, which are used to measure the CO, CO2, VOC and PM concentrations in the cabin, respectively.

[0050] The concentration data of cabin pollutants is obtained by the atmospheric pollutant concentration sensor. The atmospheric pollutant concentration sensor includes a CO concentration sensor, a CO2 concentration sensor, a VOC concentration sensor, and a PM concentration sensor, which are used to measure the CO, CO2, VOC, and PM concentrations of the external environment, respectively.

[0051] The life data of the air purification equipment is obtained by the aircraft air purification device status monitoring sensor, wherein the acquisition method includes: receiving the inlet and outlet VOC concentrations and PM concentrations measured by the air purification device status monitoring sensor, and calculating the VOC and PM concentration change rates. In addition, the controller has a built-in VOC and PM concentration change curve for a new (i.e., just used or just used) air purification device. By comparing the two curves, the life data of the air purification equipment can be obtained.

[0052] In one embodiment, the diagnostic unit includes: a comparison table acquisition subunit, which is used to obtain a comparison table of preset fault events and pollutant information, and the comparison table represents the pollutant information that may be caused by the fault event; the target pollutant information, the concentration data of atmospheric pollutants, and the life data of the air purification equipment are compared with the comparison table to obtain a set of fault events.

[0053] In this embodiment, the comparison table of fault events and pollutant information is shown in Table 2.

[0054]

[0055] Table 2 Comparison table of fault events and excessive gas types

[0056] This embodiment uses Table 2 as an example to illustrate. For example, when the system prompts that CO and CO2 exceed the standard at the same time, according to Table 2, the most likely fault event is: APU / ENG incomplete combustion leakage; other possible fault events are: APU / ENG complete combustion leakage, kitchen dry ice leakage, and APU / ENG lubricant pyrolysis leakage.

[0057] Therefore, the cabin pollution detection and early warning method provided in this application organically combines cabin pollutant monitoring with external atmospheric data and the status of air purification equipment, and establishes a traceability relationship between the result of excessive cabin pollutants and fault events such as engine / APU combustion gas leakage, lubricating oil leakage, and air purification equipment failure, thereby achieving cabin pollutant excessive warning and fault diagnosis.

[0058] In one embodiment, the system also includes: a priority division module, which is communicatively connected to the data module, and the priority division module is used to utilize the target pollutant information and combine the concentration data of atmospheric pollutants and the life data of the air purification equipment to prioritize the fault events in the fault event set, obtain the priority information, and send the priority information to the alarm module 3. The alarm module 3 is also used to execute different types of alarms according to the fault events with different priority information after receiving the priority information.

[0059] Specifically, the priority division module includes: a comparison unit and a division unit. The comparison unit is used to obtain a comparison table of preset fault events and excessive gas types. The comparison table indicates the pollutant information caused by the fault event, and compares the target pollutant information, the concentration data of atmospheric pollutants, and the life data of the air purification equipment with the comparison table; the division unit is used to prioritize according to the amount of target pollutant information contained in the same fault event in the comparison table. If a fault event in the comparison table contains the most target pollutant information, then the priority is the highest. If another fault event in the comparison table contains the least target pollutant information and it is greater than zero, then the priority is the lowest.

[0060] For example, when the system prompts that both CO and PM exceed the standard at the same time, according to Table 2, the most likely fault event is: APU / ENG incomplete combustion leakage; other possible fault events: APU / ENG lubricating oil pyrolysis leakage, APU / ENG complete combustion leakage, air purification device PM failure, external air pollution PM exceeding the standard, and personnel frequently moving around when serving meals. Whether the air purification device PM fails can be judged based on the PM life data of the cabin purification device, whether the external air PM exceeds the standard can be judged based on the external air PM concentration data, and the PM concentration exceeding the standard caused by the frequent movement of personnel when serving meals can be confirmed or eliminated through continuous observation, thereby increasing the priority of the possibility of the event or eliminating the event.

[0061] In some embodiments, the warning module 3 includes: a warning light, a display screen, a buzzer, and a vibrator, and different warning modes of the warning module 3 exist in different cabins of the flying vehicle.

[0062] There are different cabins on the aircraft, such as the cockpit where the captain is located, the passenger cabin where the passengers are located, the cabin where the flight attendants are located, etc. Different alarm methods are set in different cabins. In this embodiment, the intelligent terminal device includes a display screen, a buzzer, and a vibrator, which are installed one in the cockpit and the cabin respectively, for the pilot and flight attendants to view during the flight and the maintenance staff to view after the flight, so that different personnel on the aircraft can find alarms in time.

[0063] The data processing module 2 also includes: a storage unit for storing data acquired and / or generated by the sensor module 1, the data analysis unit and the fault diagnosis unit.

[0064] In an embodiment, Figure 2 As shown, the storage unit is set on the monitoring and alarm cloud platform. By storing the above data on the cloud platform, it is beneficial to extract and review the flight tool, so as to further manually troubleshoot the failure of the flight tool.

[0065] In some embodiments, the cabin pollution monitoring and fault diagnosis system also includes: a classification module for classifying cabin pollution, wherein the classification module includes: a classification acquisition unit for acquiring three pre-classified pollutant information, wherein a Class I event is a severe air pollution event, a Class II event is a good air quality event, and a Class III event is an excellent air quality event; a pollution level judgment unit for judging the cabin pollution level using target pollutant information, concentration data of atmospheric pollutants, and life data of air purification equipment; if the cabin pollution level is a Class I event, an alarm is issued, and the alarm information, cabin pollutant concentration data, and operation suggestions are displayed, and the operation suggestion is to remind the pilot to continue observing or land nearby; if the cabin pollution level is a Class II event, the alarm is turned off, and the cabin pollutant concentration data and operation suggestions are displayed after accepting the display operation, and the operation suggestion is for the maintenance to check or replace the air purification device after the flight; if the cabin pollution level is a Class III event, the alarm is turned off, and the cabin pollutant concentration data is displayed after accepting the display operation, and there is no operation suggestion.

[0066] This embodiment can make the crew members more quickly aware of whether the situation is urgent by classifying the events in different ways, so that they can make correct judgments without looking at operation suggestions, thereby reducing the probability of accidents occurring in the flight vehicle.

[0067] See also Figure 3 The present application also provides a method for cabin contamination monitoring and fault diagnosis, including:

[0068] S101, obtaining cabin pollutant concentration data, atmospheric pollutant concentration data, and life span data of air purification equipment;

[0069] S102, comparing the concentration data of cabin pollutants with a preset threshold value, and obtaining information of target pollutants exceeding the preset threshold value;

[0070] S103, using the target pollutant information, the concentration data of the atmospheric pollutants and the life data of the air purification equipment, the target pollutant information is associated with the preset fault events to obtain a set of fault events corresponding to the target pollutant information;

[0071] S104: Receive a set of fault events and target pollutant information, and issue corresponding alarms.

[0072] The cabin pollution monitoring and fault diagnosis method provided in this embodiment can detect cabin pollutants, and can combine the concentration data of atmospheric pollutants and the life data of air purification equipment to detect some parts of the aircraft. After detecting that the pollutants exceed the standard and the causes of the pollutants exceed the standard, an alarm is executed, thereby being able to promptly remind the staff to eliminate the cabin pollution and the fault of the aircraft that the cabin pollution may represent. The staff can quickly locate the fault of the aircraft, thereby reducing the safety risks of passengers' flights.

[0073] In one embodiment, the cabin contamination monitoring and fault diagnosis method further includes: generating an operation suggestion for resolving the fault event according to the fault event in the fault event set, and displaying the operation suggestion to the crew.

[0074] In one embodiment, the step of acquiring the life data of the air purification equipment includes: acquiring the VOC concentration value and the PM concentration value at the inlet and outlet of the air purification equipment, and a change curve of the influence of the VOC and PM filtration effect of the air purification equipment with the service life; and comparing the VOC concentration value and the PM concentration value with the change curve to obtain the life data of the air purification equipment.

[0075] In this embodiment, the life data of the air purification equipment is obtained by the aircraft air purification device status monitoring sensor, which may specifically include: receiving the inlet and outlet VOC concentrations and PM concentrations measured by the air purification device status monitoring sensor, and calculating the VOC and PM concentration change rates. In addition, the controller has a built-in VOC and PM concentration change curve for a new (i.e., just used or just used) air purification device. By comparing the two curves, the air purification equipment life data can be obtained.

[0076] In one embodiment, step S103, using target pollutant information, atmospheric pollutant concentration data, and life data of air purification equipment, the target pollutant information is associated with a preset fault event, and the step of obtaining a set of fault events corresponding to the target pollutant information includes:

[0077] Obtain a comparison table of preset fault events and pollutant information, which indicates the pollutant information caused by the fault event; compare the target pollutant information, atmospheric pollutant concentration data, and air purification equipment life data with the comparison table to obtain a fault event set

[0078] In one embodiment, the cabin pollution monitoring and fault diagnosis method further includes: utilizing target pollutant information and combining it with concentration data of atmospheric pollutants and life data of air purification equipment to prioritize fault events in a fault event set, obtain priority information, and perform different types of alarms for fault events with different priority information.

[0079] In one embodiment, the step of prioritizing fault events in a fault event set using target pollutant information in combination with concentration data of atmospheric pollutants and life data of air purification equipment includes: obtaining a comparison table of preset fault events and types of excessive gases, the comparison table indicating pollutant information that may be caused by the fault event, and comparing the target pollutant information, concentration data of atmospheric pollutants, and life data of the air purification equipment with the comparison table; prioritizing according to the amount of target pollutant information contained in the same fault event in the comparison table; if a fault event in the comparison table contains the most target pollutant information, then it has the highest priority; if another fault event in the comparison table contains the least target pollutant information and it is greater than zero, then it has the lowest priority.

[0080] In one embodiment, the warning methods include: warning lights, display screens, buzzers, and vibrators, and different warning methods exist in different cabins of the aircraft.

[0081] In some embodiments, the cabin pollution monitoring and fault diagnosis method further includes: collecting cabin pollutant concentration data, atmospheric pollutant concentration data, life data of air purification equipment, target pollutant information, and fault event collection. In other embodiments, the above priorities and operation suggestions are also stored.

[0082] In some embodiments, the cabin pollution detection and warning method also includes: obtaining a pre-classification of cabin pollution levels, wherein Class I events are severe air pollution events, Class II events are good air quality events, and Class III events are excellent air quality events; using cabin pollutant concentration data, atmospheric pollutant concentration data, and air purification equipment life data to determine the cabin pollution level; if the cabin pollution level is a Class I event, an alarm is issued, and the alarm information, cabin pollutant concentration data, and operation suggestions are displayed, wherein the operation suggestion is to remind the pilot to continue observing or land nearby; if the cabin pollution level is a Class II event, the alarm is turned off, and after accepting the display operation, the cabin pollutant concentration data and operation suggestions are displayed, wherein the operation suggestion is for the maintenance to conduct a post-flight inspection or replace the air purification device; if the cabin pollution level is a Class III event, the alarm is turned off, and after accepting the display operation, the cabin pollutant concentration data is displayed, and there is no operation suggestion.

[0083] By classifying events differently, the crew can more quickly realize whether the situation is urgent, so that they can make correct judgments without having to look at operational recommendations, thereby reducing the probability of accidents occurring in flight vehicles.

[0084] The present application embodiment provides an electronic device. Figure 4 The electronic device includes: a memory 601, a processor 602, and a computer program stored in the memory 601 and executable on the processor 602. When the processor 602 executes the computer program, the cabin contamination monitoring and fault diagnosis method described above is implemented.

[0085] Furthermore, the electronic device also includes: at least one input device 603 and at least one output device 604 .

[0086] The memory 601 , processor 602 , input device 603 and output device 604 are connected via a bus 605 .

[0087] The input device 603 may be a camera, a touch panel, a physical button or a mouse, etc. The output device 604 may be a display screen.

[0088] The memory 601 may be a high-speed random access memory (RAM) memory or a non-volatile memory, such as a disk memory. The memory 601 is used to store a set of executable program codes, and the processor 602 is coupled to the memory 601 .

[0089] Furthermore, the embodiment of the present application also provides a computer-readable storage medium, which may be disposed in the electronic device in each of the above embodiments, and the computer-readable storage medium may be the memory 601 in the above embodiments. The computer-readable storage medium stores a computer program, which, when executed by the processor 602, implements the cabin contamination monitoring and fault diagnosis method described in the above method embodiment.

[0090] Furthermore, the computer storable medium may also be a U disk, a mobile hard disk, a read-only memory (ROM), a RAM, a magnetic disk or an optical disk, or other medium that can store program codes.

[0091] In the several embodiments provided in the present application, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the modules is only a logical function division. There may be other division methods in actual implementation, such as multiple modules or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or modules, which can be electrical, mechanical or other forms.

[0092] The modules described as separate components may or may not be physically separated, and the components shown as modules may or may not be physical modules, that is, they may be located in one place or distributed on multiple network modules. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0093] In addition, each functional module in each embodiment of the present invention may be integrated into one processing module, or each module may exist physically separately, or two or more modules may be integrated into one module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of software functional modules.

[0094] If the integrated module is implemented in the form of a software function module and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention.

[0095] It should be noted that, for the convenience of description, the aforementioned method embodiments are all described as a series of action combinations, but those skilled in the art should be aware that the present invention is not limited by the described action sequence, because according to the present invention, certain steps can be performed in other sequences or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

[0096] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0097] In summary, although the present invention has been disclosed as above in terms of preferred embodiments, the above preferred embodiments are not intended to limit the present invention. A person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope defined in the claims.

Claims

1. A cabin contamination monitoring and fault diagnosis system, characterized in that: include: The sensor module is used to obtain the concentration data of cabin pollutants, the concentration data of atmospheric pollutants and the life data of air purification equipment; a data processing module, wherein the data processing module is communicatively connected with the sensor module, the data processing module comprises a data analysis unit, a fault diagnosis unit and a sending unit, the data analysis unit is used to compare the cabin pollutant concentration data with a preset threshold value to obtain target pollutant information exceeding the preset threshold value, the fault diagnosis unit is used to receive the target pollutant information and, in combination with the concentration data of the atmospheric pollutants and the life data of the air purification device, associate the target pollutant information with a preset fault event to obtain a fault event set corresponding to the target pollutant information, and the sending unit is used to send the fault event set and the target pollutant information; An alarm module is communicatively connected with the data processing module, and is used to receive the fault event set and the target pollutant information, and execute corresponding alarms.

2. The cabin contamination monitoring and fault diagnosis system according to claim 1, characterized in that: The data processing module also includes: an operation suggestion generating unit, which is communicatively connected to the fault diagnosis unit, and the operation suggestion generating unit is used to receive a set of fault events obtained by the fault diagnosis unit, generate an operation suggestion for solving the fault event according to the fault event in the set of fault events, and send the operation suggestion to the alarm module. The alarm module is also used to receive the operation suggestion and display the operation suggestion to the crew members.

3. The cabin contamination monitoring and fault diagnosis system according to claim 1, characterized in that: The sensor module includes: an equipment life data acquisition unit, which is used to obtain the VOC concentration value and the PM concentration value at the inlet and outlet of the air purification equipment, and a change curve of the influence of the air purification equipment on the VOC and PM filtering effect with the service life; and compare the VOC concentration value and the PM concentration value with the change curve to obtain the life data of the air purification equipment.

4. The cabin contamination monitoring and fault diagnosis system according to claim 1, characterized in that: The diagnostic unit comprises: A comparison table acquisition subunit is used to acquire a preset comparison table of fault events and pollutant information, wherein the comparison table indicates pollutant information that may be caused by the fault event; The fault event set acquisition unit is used to compare the target pollutant information, the concentration data of the atmospheric pollutants, and the life data of the air purification equipment with the comparison table to obtain the fault event set.

5. The cabin contamination monitoring and fault diagnosis system according to claim 1, characterized in that: The system also includes: a priority classification module, which is communicatively connected to the data module, and the priority classification module is used to utilize the target pollutant information and combine the concentration data of the atmospheric pollutants and the life data of the air purification equipment to prioritize the fault events in the fault event set, obtain priority information, and send the priority information to the alarm module. The alarm module is also used to execute different types of alarms according to fault events with different priority information after receiving the priority information.

6. The cabin contamination monitoring and fault diagnosis system according to claim 5, characterized in that: The priority division module includes: a comparison unit and a division unit. The comparison unit is used to obtain a comparison table of preset fault events and excessive gas types, the comparison table indicating pollutant information caused by the fault event, and comparing the target pollutant information, the concentration data of the atmospheric pollutants, and the life data of the air purification equipment with the comparison table; the division unit is used to prioritize according to the amount of target pollutant information contained in the same fault event in the comparison table; if a fault event in the comparison table contains the most target pollutant information, then it has the highest priority; if another fault event in the comparison table contains the least target pollutant information and it is greater than zero, then it has the lowest priority.

7. The cabin contamination monitoring and fault diagnosis system according to claim 5, characterized in that: The alarm module includes: an alarm light, a display screen, a buzzer, and a vibrator.

8. The cabin contamination monitoring and fault diagnosis system according to claim 1, characterized in that: The data processing module further includes: a storage unit for storing data acquired and / or generated by the sensor module, the data analysis unit and the fault diagnosis unit.

9. The cabin contamination monitoring and fault diagnosis system according to claim 1, characterized in that: The system further comprises: a classification module for classifying cabin contamination, wherein the classification module comprises: A classification acquisition unit is used to obtain three classifications of pollutant information in advance, wherein the first category of events is severe air pollution events, the second category of events is good air quality events, and the third category of events is excellent air quality events; The pollution level judgment unit judges the pollution level of the cabin by using the target pollutant information, the concentration data of the atmospheric pollutants and the life data of the air purification device; if the cabin pollution level is a Class I event, an alarm is issued, and the alarm information, the concentration data of the cabin pollutants and the operation suggestion are displayed, and the operation suggestion is to remind the pilot to continue observing or land nearby; if the cabin pollution level is a Class II event, the alarm is turned off, and after accepting the display operation, the concentration data of the cabin pollutants and the operation suggestion are displayed, and the operation suggestion is to perform a post-flight inspection or replace the air purification device by the maintenance staff; if the cabin pollution level is a Class III event, the alarm is turned off, and after accepting the display operation, the concentration data of the cabin pollutants are displayed, and there is no operation suggestion.

10. A method for cabin contamination monitoring and fault diagnosis, characterized in that: include: Obtain cabin pollutant concentration data, atmospheric pollutant concentration data, and air purification equipment life data; Comparing the cabin pollutant concentration data with a preset threshold value to obtain target pollutant information exceeding the preset threshold value; Using the target pollutant information, the concentration data of the atmospheric pollutants and the life data of the air purification equipment, the target pollutant information is associated with a preset fault event to obtain a set of fault events corresponding to the target pollutant information; The fault event set and the target pollutant information are received, and corresponding alarms are executed.

11. An electronic device comprising: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the method of claim 10 is implemented when the processor executes the computer program.

12. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the method according to claim 10 is implemented.

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