An atmospheric data system and method with enhanced heating monitoring function

Abstract

The application provides an atmospheric data system and method with strengthened heating monitoring function, belonging to the field of airborne avionics of an airplane, comprising: a three-channel atmospheric data computer subsystem, a three-channel atmospheric data heating controller subsystem, an airplane flight management subsystem and an atmospheric data probe subsystem; the three channels have crosslinking, and a communication architecture of the atmospheric data system with the strengthened heating monitoring function and a heating monitoring method are provided.The application solves the problem of single-channel atmospheric parameter output error caused by the communication link fault between the atmospheric data computer and the atmospheric data heating controller of the existing civil airplane atmospheric data system.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of airborne avionics, and particularly relates to an air data system and method with enhanced heating monitoring function. BACKGROUND

[0002] An air data system (ADS) is a vital system on an aircraft, which collects real-time information of atmospheric static pressure, total pressure, total temperature, etc. through PITOT, STATIC, TAT, AOA, etc. distributed on the nose, fuselage, etc., and then accurately calculates a series of flight atmospheric parameters such as airspeed, barometric altitude, Mach number, etc. The data provided by the air data system is widely used in flight control, navigation, instrument display, etc. and is a key parameter for civil aircraft to ensure flight safety and flight performance.

[0003] The PITOT is designed based on Bernoulli's principle, which states that in the steady flow of an ideal fluid, the pressure of the fluid will decrease as the flow rate increases, and the pressure will increase as the flow rate decreases. The PITOT utilizes this physical law to measure pressure and obtain the key parameters required for flight. The PITOT has a small hole in the head that is directly opposite the direction of the airflow. When the aircraft is flying in the air, the airflow will directly rush into the small hole of the PITOT. According to Bernoulli's principle, the kinetic energy of the airflow is completely converted into pressure energy at this time, thereby forming total pressure in the PITOT, which includes the ram pressure and static pressure of the airflow. In contrast, the STATIC is generally installed at a position perpendicular to the airflow direction to sense the static pressure of the airflow. The static pressure represents the pressure of the atmosphere without interference from the aircraft motion, reflecting the local atmospheric pressure condition. The TAT is used to measure the stagnation temperature of the airflow, and its working principle is based on the law of conservation of energy. When high-speed airflow flows through the sensor, the kinetic energy is converted into heat energy to increase the temperature. The thermocouple inside the sensor converts heat into an electrical signal output by sensing temperature changes. The total temperature is a representation of the total energy of the atmosphere, and the measurement accuracy directly affects the calculation of flight performance. The AOA is used to monitor the angle between the aircraft and the relative airflow in real time, i.e. the angle of attack. The AOA sensor senses the airflow direction through the wind vane and converts the angle change into an electrical signal output, providing important data support for the flight control system, instrument display system, etc. In the air data system, the information measured by the above air data probes is processed by the air data computer (ADC) to calculate various atmospheric parameters. If the probe fails, it will affect the measurement of atmospheric parameters and cause safety risk events.

[0004] The primary cause of atmospheric data probe failure is probe icing. Water vapor exists in the atmosphere, and when an aircraft flies at high altitudes or in low temperatures, the surrounding air temperature may be below freezing, especially when flying through clouds containing supercooled water droplets. Water vapor easily condenses into ice on the probe surface. Icing severely impacts the normal operation of the probe. For pitot tubes, icing can directly block the measurement channels or alter the airflow field, leading to total pressure measurement failure. For total temperature sensors, icing can block the outlet, causing the temperature measurement to rise. For angle-of-attack sensors, icing can freeze the anemometer, preventing the measured angle of attack from changing. If the flight control system or pilot operates based on erroneous data, the aircraft may stall or overspeed, posing a direct threat to flight safety. Many famous air disasters in civil aviation history are related to atmospheric data probe icing. Therefore, to ensure the accuracy and reliability of atmospheric data measurements, it is necessary to heat and de-ic the atmospheric data probe. The heating function of the atmospheric data probe is a key design feature for ensuring flight safety.

[0005] The device that provides heating for the air data probe in the air data system is the Air Data Heated Controller (ADHC). The ADHC provides heating power to the air data probe and monitors the probe's heating function through current and voltage monitoring designs. The heating function of the ADHC is controlled by both the air data computer and manual intervention. The air data computer provides automatic heating control; when it detects that the aircraft is in flight or about to take off, it controls the ADHC to heat the probe. A manual heating switch provides pilot-operated control, allowing for forced heating of the probe in the event of a partial aircraft malfunction.

[0006] To meet the high reliability requirements of aviation safety in existing civil aircraft, the air data system configuration adopts a triple-redundant design. This design achieves high integrity output of critical flight data through redundant configuration of three independent channels. Its core lies in building a multi-layered safety assurance system through hardware redundancy, data cross-validation, and fault isolation mechanisms. The basic architecture of the triple-redundant configuration divides the air data system's probe, air data computer, air data heating controller, and other equipment and communication links into three independent and functionally identical channels. Each channel has complete measurement, calculation, output, and probe heating capabilities. The triple-redundant system achieves fault identification and isolation through a "comparison-voting-monitoring" mechanism. The data calculated by the three sets of air data computers are interconnected, and the majority voting principle is used to output voting atmospheric parameters. If the output data of one channel deviates from the other two by more than a preset threshold, all three sets of air data computers will identify that channel as faulty and isolate it. Simultaneously, the cockpit alarm system will notify the crew of the failure of that redundant channel. At this time, the two normally functioning channels can still maintain system functionality, ensuring data reliability.

[0007] In the existing civil aircraft atmospheric data system, the atmospheric data of each channel is only connected with the atmospheric data computer, the automatic heating control command is only sent by the atmospheric data computer, and the heating monitoring information is also only received by the atmospheric data computer. The configuration is relatively simple in hardware composition, but when the communication link between the atmospheric data computer and the atmospheric data heating controller fails, the following problems will occur:

[0008] The loss of monitoring state caused by the failure of the communication link will cause the atmospheric data computer to misjudge the state of the probe heating monitoring of the channel, further output the error single-channel atmospheric parameter, cause a series of problems in the voting and subsequent calculation process, and finally affect the flight safety;

[0009] Due to the loss of control ability of the atmospheric data heating controller, the problem of unexpected loss of probe heating may occur, resulting in the loss of probe heating of the channel, and the output of the error single-channel atmospheric parameter.

[0010] Therefore, the existing civil aircraft atmospheric data system has the problem that the atmospheric data function integrity is limited due to the configuration limitation of the single channel. SUMMARY

[0011] In view of the above problems in the prior art, the atmospheric data system and method provided by the present application can solve the problem of error output of single-channel atmospheric parameter caused by the failure of the communication link between the atmospheric data computer and the atmospheric data heating controller in the existing civil aircraft atmospheric data system.

[0012] In order to achieve the above purpose, the technical scheme adopted by the present application is as follows: on the one hand, the present application provides an atmospheric data system with enhanced heating monitoring function, comprising: a three-channel atmospheric data computer subsystem, a three-channel atmospheric data heating controller subsystem, an aircraft flight management subsystem and an atmospheric data probe subsystem;

[0013] The atmospheric data probe subsystem is used for real-time acquisition of atmospheric data.

[0014] The three-channel atmospheric data computer subsystem is used for receiving atmospheric data, sending heating control commands to the three-channel atmospheric data heating controller subsystem, and receiving heating monitoring information, outputting channel atmospheric parameters and voting atmospheric parameters.

[0015] The three-channel atmospheric data heating controller subsystem is used for receiving heating control commands, monitoring the atmospheric data probe subsystem, calculating the real-time power information of the probe by voltage and current, and obtaining the heating monitoring information by calculating the real-time power information.

[0016] The aircraft flight management subsystem is configured to formulate an aircraft flight management scheme according to the channel atmospheric parameters and the voted atmospheric parameters.

[0017] The present application has the following advantages: the present application adopts a communication architecture of a three-channel atmospheric data system, the channels are cross-linked, each channel outputs the channel atmospheric parameters and the voted atmospheric parameters to the aircraft flight management subsystem, and a heating monitoring method is used, when a communication link between the three-channel atmospheric data computer subsystem and the three-channel atmospheric data heating controller subsystem fails, the monitoring state is not lost, which can cause a misjudgment of the atmospheric data computer to the heating monitoring state of the channel probe, and output of incorrect atmospheric parameters is caused;

[0018] When the monitoring capability of the three-channel atmospheric data heating controller subsystem fails, a misjudgment of the atmospheric data computer to the heating monitoring state of the channel probe is not caused, incorrect atmospheric parameters are not output, the integrity of the heating control command and the heating monitoring information of the atmospheric data probe is improved, and the signal integrity of the atmospheric data system and flight safety are improved.

[0019] Further, the atmospheric data probe subsystem comprises a pitot tube, a static pressure hole, a total temperature sensor, an angle of attack sensor and a resistive element.

[0020] The pitot tube, the static pressure hole, the total temperature sensor and the angle of attack sensor are configured to collect atmospheric static pressure, total pressure and total temperature in real time, obtain atmospheric data, and transmit the atmospheric data to the three-channel atmospheric data computer subsystem.

[0021] The resistive element is configured to obtain a heating control command and heat the atmospheric data probe subsystem.

[0022] Further, the three-channel atmospheric data computer subsystem comprises a first-channel atmospheric data computer, a second-channel atmospheric data computer and a third-channel atmospheric data computer.

[0023] The first-channel atmospheric data computer is configured to receive atmospheric data, obtain calculated first-channel atmospheric parameters, send a heating control command to the three-channel atmospheric data heating controller subsystem, and transmit the calculated first-channel atmospheric parameters to the second-channel atmospheric data computer and the third-channel atmospheric data computer.

[0024] The first-channel atmospheric data computer is configured to receive atmospheric data, obtain calculated first-channel atmospheric parameters, send a heating control command to the three-channel atmospheric data heating controller subsystem, and transmit the calculated first-channel atmospheric parameters to the second-channel atmospheric data computer and the third-channel atmospheric data computer.

[0025] The second channel atmospheric data computer is configured to receive atmospheric data, obtain calculated second channel atmospheric parameters, send a heating control command to the three-channel atmospheric data heating controller subsystem, and transmit the calculated second channel atmospheric parameters to the first channel atmospheric data computer and the third channel atmospheric data computer.

[0026] The second channel atmospheric data computer is configured to receive atmospheric data, obtain calculated second channel atmospheric parameters, send a heating control command to the three-channel atmospheric data heating controller subsystem, and transmit the calculated second channel atmospheric parameters to the first channel atmospheric data computer and the third channel atmospheric data computer.

[0027] The third channel atmospheric data computer is configured to receive atmospheric data, obtain calculated third channel atmospheric parameters, send a heating control command to the three-channel atmospheric data heating controller subsystem, and transmit the calculated third channel atmospheric parameters to the first channel atmospheric data computer and the second channel atmospheric data computer.

[0028] The third channel atmospheric data computer is configured to receive atmospheric data, obtain calculated third channel atmospheric parameters, send a heating control command to the three-channel atmospheric data heating controller subsystem, and transmit the calculated third channel atmospheric parameters to the first channel atmospheric data computer and the second channel atmospheric data computer.

[0029] The above further scheme has the beneficial effects that: the three-channel atmospheric data computer, through data exchange and connection of each atmospheric data computer, and in combination with majority voting logic and data integrity voting logic, accurately obtains each channel atmospheric parameter and voting atmospheric parameter, reduces the influence of parameters caused by channel failure, and when a single channel link data transmission is blocked, the system can maintain normal heating state monitoring.

[0030] Further, the three-channel atmospheric data heating controller subsystem comprises: a first channel atmospheric data heating controller, a second channel atmospheric data heating controller, and a third channel atmospheric data heating controller.

[0031] The first channel atmospheric data heating controller, the second channel atmospheric data heating controller, and the third channel atmospheric data heating controller have the same function and structure, are configured to receive a heating control command, perform heating monitoring on the atmospheric data probe subsystem, calculate real-time power information of the probe by using voltage and current, obtain heating monitoring information by calculation, and input the heating monitoring information into the first channel atmospheric data computer, the second channel atmospheric data computer, and the third channel atmospheric data computer.

[0032] Further, the first channel atmospheric data heating controller, the second channel atmospheric data heating controller and the third channel atmospheric data heating controller each comprises a first communication module, a second communication module, a third communication module, a voting control module, a heating relay and a heating monitoring module;

[0033] The first communication module is configured to receive a heating control command sent by the first channel atmospheric data computer and send heating monitoring information to the first channel atmospheric data computer.

[0034] The second communication module is configured to receive a heating control command sent by the second channel atmospheric data computer and send heating monitoring information to the second channel atmospheric data computer.

[0035] The third communication module is configured to receive a heating control command sent by the third channel atmospheric data computer and send heating monitoring information to the third channel atmospheric data computer.

[0036] The voting control module is configured to vote the heating control commands sent by the channel atmospheric data computers, and obtain a voted heating control command based on majority voting logic and data integrity voting logic.

[0037] The heating relay is configured to provide a heating power supply for the atmospheric data probe subsystem according to the voted heating control command.

[0038] The heating monitoring module is configured to monitor the heated atmospheric data probe subsystem and obtain heating monitoring information.

[0039] Further, the aircraft flight management subsystem comprises an isolation module and a scheme formulation module.

[0040] The isolation module is configured to identify a fault channel by using the first channel atmospheric data computer, the second channel atmospheric data computer and the third channel atmospheric data computer, and isolate the fault channel to obtain an isolated atmospheric data system, in response to a deviation between a channel atmospheric parameter and a voting atmospheric parameter of a certain channel and channel atmospheric parameters and voting atmospheric parameters of the other two channels exceeding a preset threshold based on the first channel atmospheric parameter, the second channel atmospheric parameter, the third channel atmospheric parameter, the first voting atmospheric parameter, the second voting atmospheric parameter and the third voting atmospheric parameter.

[0041] The scheme formulation module is configured to measure an atmospheric parameter based on the isolated atmospheric data system, and formulate an aircraft flight management scheme according to the measured atmospheric parameter.

[0042] The beneficial effects of the further scheme are: the application adopts a three-channel atmospheric data heating controller subsystem, and adopts voting control, heating relays and heating monitoring modules in the atmospheric data heating controller, based on majority voting logic and data integrity voting logic, to realize accurate isolation of a faulty channel, and to formulate a safer aircraft flight management scheme, when a single channel fails, the system can accurately isolate the faulty channel without being affected by data transmission obstacles, thereby improving the heating state monitoring capability of the system and improving aircraft flight safety.

[0043] To achieve the above-mentioned purpose, according to the second aspect of the present application, a method for atmospheric data with enhanced heating monitoring function is provided, comprising the following steps:

[0044] S1, using an atmospheric data probe subsystem, collecting atmospheric data, and using a three-channel atmospheric data computer subsystem to formulate a heating control command;

[0045] S2, according to the heating control command, using a three-channel atmospheric data heating controller subsystem to monitor the atmospheric data probe subsystem, obtaining heating monitoring information;

[0046] S3, according to the heating monitoring information, using a three-channel atmospheric data computer subsystem to obtain first channel atmospheric parameters, second channel atmospheric parameters, third channel atmospheric parameters, first voting atmospheric parameters, second voting atmospheric parameters and third voting atmospheric parameters;

[0047] S4, according to the first channel atmospheric parameters, the second channel atmospheric parameters, the third channel atmospheric parameters, the first voting atmospheric parameters, the second voting atmospheric parameters and the third voting atmospheric parameters, identifying a faulty channel and isolating it, and based on the isolated atmospheric data system, obtaining optimized atmospheric data.

[0048] Further, S2 specifically comprises:

[0049] According to the heating control command, using a three-channel atmospheric data heating controller subsystem to vote on the heating control command, based on majority voting logic and data integrity voting logic, to obtain a voted heating control command;

[0050] According to the voted heating control command, providing a heating power supply to the atmospheric data probe subsystem, and using a resistive element to heat the atmospheric data probe subsystem;

[0051] And monitoring the heated atmospheric data probe subsystem to obtain heating monitoring information.

[0052] Further, S3 comprises the following steps:

[0053] S301, according to the heating monitoring information, using three-channel atmospheric data computer subsystem, in response to a channel atmospheric data computer receives the heating monitoring information, the heating monitoring information is forwarded to the remaining two channel atmospheric data computers;

[0054] S302, based on three-channel atmospheric data computer subsystem, combined with majority voting logic and data integrity voting logic, get the first voting atmospheric parameter, the second voting atmospheric parameter and the third voting atmospheric parameter;

[0055] S303, using three-channel atmospheric data computer subsystem to solve the channel atmospheric parameter, get the first channel atmospheric parameter, the second channel atmospheric parameter and the third channel atmospheric parameter.

[0056] The beneficial effects of the above further scheme are: the present application adopts three-channel atmospheric data crosslinking, combined with majority voting logic and data integrity voting logic, realizes the accurate voting of heating control command and heating monitoring information, optimizes the atmospheric data, improves the quality of atmospheric parameter, reduces the occurrence of output error atmospheric parameter, improves the signal integrity and flight safety of atmospheric data. BRIEF DESCRIPTION OF DRAWINGS

[0057] Figure 1 The atmospheric data system configuration diagram of the present application.

[0058] Figure 2 The architecture diagram of the atmospheric data heating controller in the present embodiment.

[0059] Figure 3 The method flow chart in the present embodiment. DETAILED DESCRIPTION

[0060] The specific embodiments of the present application are described below, so that those skilled in the art can understand the present application, but it should be clear that the present application is not limited to the scope of the specific embodiments, for those skilled in the art, as long as various changes are within the spirit and scope of the present application defined and determined by the appended claims, these changes are obvious, all the inventions using the concept of the present application are within the scope of protection.

[0061] Before explaining the present embodiment, the following terms are explained:

[0062] PITOT: air speed tube;

[0063] STATIC: static pressure hole;

[0064] TAT: total temperature sensor;

[0065] AOA: angle of attack sensor;

[0066] FMS: flight management system.

[0067] Embodiment 1

[0068] In this embodiment, according to the aircraft type, the aircraft air data system has an independent configuration (with an independent air data computer) and a resident configuration (the air data computer is composed of an air data module (ADM) and air data software (ADA), and the air data software resides in other systems of the aircraft); the two air data system configurations are not different in function, and the present application takes the independent configuration as an embodiment, and the present application is also applicable to the resident configuration.

[0069] As shown in Figure 1 , the present application provides an air data system with enhanced heating monitoring function, comprising:

[0070] a three-channel air data computer subsystem, a three-channel air data heating controller subsystem, an aircraft flight management subsystem and an air data probe subsystem.

[0071] In this embodiment, Figure 1 the air data system with enhanced heating monitoring function omits the signal connection between the air data probe and the air data computer;

[0072] The air data system with enhanced heating monitoring function is composed of three channels, including: an air data probe subsystem, a three-channel air data heating controller subsystem, a three-channel air data computer subsystem and an aircraft flight management subsystem;

[0073] The air data probe subsystem, the three-channel air data heating controller subsystem, the three-channel air data computer subsystem and the aircraft flight management subsystem are connected in sequence; the air data probe subsystem is connected with the three-channel air data computer subsystem.

[0074] From the channel level, each channel is composed of 1 air data computer (ADC), 1 air data heating controller (ADHC) and a plurality of air data probes (including PITOT, STATIC, TAT and AOA, etc.).

[0075] The air data probe subsystem is used for real-time collection of air data, including: a pitot tube, a static pressure hole, a total temperature sensor, an angle of attack sensor and a resistive element.

[0076] The pitot tube, the static pressure hole, the total temperature sensor and the angle of attack sensor are used for real-time collection of atmospheric static pressure, total pressure and total temperature, obtaining air data, and transmitting the air data to the three-channel air data computer subsystem.

[0077] The resistive element is used to obtain a heating control command to heat the atmospheric data probe subsystem.

[0078] In the embodiment, the atmospheric data probe subsystem collects real-time atmospheric static pressure, total pressure and total temperature and other information through PITOT, STATIC, TAT and AOA distributed on the nose and the fuselage, and then accurately calculates a series of flight atmospheric parameters such as airspeed, barometric altitude and Mach number, and transmits the atmospheric data to the three-channel atmospheric data computer subsystem.

[0079] The heating function of each component in the atmospheric data probe subsystem is realized by the resistive element, that is, the resistive element in the probe is powered and heated.

[0080] The three-channel atmospheric data computer subsystem is used to receive atmospheric data, send a heating control command to the three-channel atmospheric data heating controller subsystem, receive heating monitoring information, output channel atmospheric parameters and voting atmospheric parameters, and includes a first-channel atmospheric data computer, a second-channel atmospheric data computer and a third-channel atmospheric data computer.

[0081] The first-channel atmospheric data computer is used to receive atmospheric data, obtain calculated first-channel atmospheric parameters, send a heating control command to the three-channel atmospheric data heating controller subsystem, and transmit the calculated first-channel atmospheric parameters to the second-channel atmospheric data computer and the third-channel atmospheric data computer.

[0082] The first-channel atmospheric data computer is used to receive atmospheric data, obtain calculated first-channel atmospheric parameters, send a heating control command to the three-channel atmospheric data heating controller subsystem, and transmit the calculated first-channel atmospheric parameters to the second-channel atmospheric data computer and the third-channel atmospheric data computer.

[0083] The second-channel atmospheric data computer is used to receive atmospheric data, obtain calculated second-channel atmospheric parameters, send a heating control command to the three-channel atmospheric data heating controller subsystem, and transmit the calculated second-channel atmospheric parameters to the first-channel atmospheric data computer and the third-channel atmospheric data computer.

[0084] The second-channel atmospheric data computer is used to receive atmospheric data, obtain calculated second-channel atmospheric parameters, send a heating control command to the three-channel atmospheric data heating controller subsystem, and transmit the calculated second-channel atmospheric parameters to the first-channel atmospheric data computer and the third-channel atmospheric data computer.

[0085] The third channel atmospheric data computer is configured to receive atmospheric data, obtain calculated third channel atmospheric parameters, and send a heating control command to the three-channel atmospheric data heating controller subsystem, and transmit the calculated third channel atmospheric parameters to the first channel atmospheric data computer and the second channel atmospheric data computer.

[0086] The third channel atmospheric data computer is configured to receive atmospheric data, obtain calculated third channel atmospheric parameters, and send a heating control command to the three-channel atmospheric data heating controller subsystem, and transmit the calculated third channel atmospheric parameters to the first channel atmospheric data computer and the second channel atmospheric data computer.

[0087] The three-channel atmospheric data heating controller subsystem is configured to receive the heating control command, monitor the atmospheric data probe subsystem, calculate real-time power information of the probe by using voltage and current, obtain heating monitoring information by calculating the real-time power information, and input the heating monitoring information to the first channel atmospheric data computer, the second channel atmospheric data computer and the third channel atmospheric data computer.

[0088] The first channel atmospheric data heating controller, the second channel atmospheric data heating controller and the third channel atmospheric data heating controller.

[0089] The first channel atmospheric data heating controller, the second channel atmospheric data heating controller and the third channel atmospheric data heating controller.

[0090] In this embodiment, the three channels of the atmospheric data system with enhanced heating monitoring function are cross-linked, the first channel atmospheric data computer (ADC1) sends a heating control command to the first channel atmospheric data heating controller (ADHC1), the second channel atmospheric data heating controller (ADHC2) and the third channel atmospheric data heating controller (ADHC3), and receives atmospheric data probe heating monitoring information of the three channels from ADHC1, ADHC2 and ADHC3; ADC1 sends calculated first channel atmospheric parameters to the second channel atmospheric data computer (ADC2) and the third channel atmospheric data computer (ADC3), forwards ADHC2 heating monitoring information to ADC2, and forwards ADHC3 heating monitoring information to ADC3.

[0091] Similarly, ADC2 sends the heating control command to the three-channel atmospheric data heating controller, receives the three-channel atmospheric data probe heating monitoring information, sends the calculated second-channel atmospheric parameters to ADC1 and ADC3, forwards the ADHC1 heating monitoring information to ADC1, and forwards the ADHC3 heating monitoring information to ADC3;

[0092] Similarly, ADC3 sends the heating control command to the three-channel ADHC, receives the three-channel probe heating monitoring information, sends the calculated third-channel atmospheric parameters to ADC1 and ADC2, forwards the ADHC1 heating monitoring information to ADC1, and forwards the ADHC2 heating monitoring information to ADC2.

[0093] In this embodiment, each atmospheric data computer judges the probe heating monitoring information of the probe in the channel according to the probe heating monitoring information sent by the three-channel atmospheric data heating controller subsystem. The voting method can adopt majority voting and data integrity voting.

[0094] The majority voting method is to take the majority of the probe heating monitoring information sent by the three-channel atmospheric data heating controller subsystem. Taking the first channel as an example, the probe heating monitoring information majority voting logic is shown in Table 1.

[0095] Table 1

[0096]

[0097] The data integrity voting is to take the ADHC probe heating monitoring information directly received by the ADC in the channel as the main monitoring information. When the ADHC probe heating monitoring information in the channel is heating, the probe heating state in the channel is considered to be heating. When the ADHC probe heating monitoring information in the channel is not heating, if the ADHC probe heating monitoring information in the channel forwarded by the ADC in other channels is consistent with heating, the probe heating state in the channel is also considered to be heating. Taking the first channel as an example, the heating control command data integrity voting logic is shown in Table 2.

[0098] Table 2

[0099]

[0100] In this embodiment, the atmospheric data heating controller (ADHC) judges the automatic heating control logic of the probe in the channel according to the heating control command sent by the three-channel atmospheric data computer subsystem. The voting method can adopt majority voting or data integrity voting.

[0101] The majority voting method is to take the majority of the heating control command sent by the three-channel atmospheric data heating controller subsystem. Taking the first channel as an example, the heating control command majority voting logic is shown in Table 3.

[0102] Table 3

[0103]

[0104] The data integrity voting is the warming control command sent by the channel ADC; when the channel ADC control command is warming, the channel ADHC warms the probe; when the channel ADC control command is not warming, if the other channel ADC control command is consistent with warming, the channel ADHC also warms the probe; taking the first channel as an example, the warming control command data integrity voting logic is shown in Table 4.

[0105] Table 4

[0106]

[0107] The first channel atmospheric data warming controller, the second channel atmospheric data warming controller and the third channel atmospheric data warming controller each include a first communication module, a second communication module, a third communication module, a voting control module, a warming relay and a warming monitoring module.

[0108] The first communication module is configured to receive the warming control command sent by the first channel atmospheric data computer and send the warming monitoring information to the first channel atmospheric data computer.

[0109] The second communication module is configured to receive the warming control command sent by the second channel atmospheric data computer and send the warming monitoring information to the second channel atmospheric data computer.

[0110] The third communication module is configured to receive the warming control command sent by the third channel atmospheric data computer and send the warming monitoring information to the third channel atmospheric data computer.

[0111] The voting control module is configured to vote the warming control commands sent by the channel atmospheric data computers, and obtain the voted warming control command based on the majority voting logic and the data integrity voting logic.

[0112] The warming relay is configured to provide the warming power supply for the atmospheric data probe subsystem according to the voted warming control command.

[0113] The warming monitoring module is configured to monitor the heated atmospheric data probe subsystem and obtain the warming monitoring information.

[0114] In this embodiment, as Figure 2As shown, each channel atmospheric data heating controller (ADHC) is composed of a first communication module (COM1), a second communication module (COM2), a third communication module (COM3), a voting control module (VOTE), a heating relay (RLY) and a heating monitoring module (MON). The first communication module receives the heating control command sent by the first channel atmospheric data computer (ADC1) and sends the probe heating monitoring information to the first channel atmospheric data computer (ADC1), the second communication module receives the heating control command sent by the second channel atmospheric data computer (ADC2) and sends the probe heating monitoring information to the second channel atmospheric data computer (ADC2), and the third communication module receives the heating control command sent by the third channel atmospheric data computer (ADC3) and sends the probe heating monitoring information to the third channel atmospheric data computer (ADC3);

[0115] The voting control module (VOTE) receives the heating control command sent by the three-channel atmospheric data computer ADC, and sends the voting heating control command to the heating relay (RLY) after voting;

[0116] The heating relay (RLY) provides heating power to the atmospheric data probe based on the heating control command. The heating monitoring module (MON) monitors the output voltage, current and other probe heating monitoring information of the heating relay (RLY) and sends them to ADC1, ADC2 and ADC3 through COM1, COM2 and COM3.

[0117] The atmospheric data heating controller (ADHC) realizes the heating monitoring information of the controlled probe by the following method: the heating monitoring module (MON) monitors the voltage, current and other information output by the heating relay (RLY), and calculates the real-time power information of the probe through voltage and current; if all parameters of the voltage, current and power of a single probe monitored by the heating monitoring module (MON) meet the preset threshold requirements, it is considered that the probe is in the heating state, otherwise it is considered that the probe is in the non-heating state. According to the specific design of the atmospheric data heating controller ADHC (ADHC), the monitoring parameters can be trimmed in the three parameters of voltage, current and power.

[0118] In the embodiment, the aircraft flight management subsystem comprises an isolation module and a scheme formulation module.

[0119] The isolation module is configured to identify a fault channel and isolate the fault channel by using the first channel atmospheric data computer, the second channel atmospheric data computer and the third channel atmospheric data computer, and obtain an isolated atmospheric data system, according to the first channel atmospheric parameter, the second channel atmospheric parameter, the third channel atmospheric parameter, the first voting atmospheric parameter, the second voting atmospheric parameter and the third voting atmospheric parameter, and in response to the deviation of the channel atmospheric parameter and the voting atmospheric parameter of a certain channel from the channel atmospheric parameter and the voting atmospheric parameter of the other two channels exceeding a preset threshold.

[0120] The scheme formulation module is configured to measure the atmospheric parameter based on the isolated atmospheric data system, and formulate an aircraft flight management scheme according to the measured atmospheric parameter.

[0121] Embodiment 2

[0122] As shown in Figure 3 The present application provides a kind of atmospheric data method of strengthening heating monitoring function, realizes the atmospheric data system of strengthening heating monitoring function described in embodiment 1, comprising the following steps:

[0123] S1, atmospheric data is obtained by using atmospheric data probe subsystem, and heating control command is formulated by using three-channel atmospheric data computer subsystem;

[0124] S2, according to heating control command, three-channel atmospheric data heating controller subsystem is used to monitor atmospheric data probe subsystem, obtains heating monitoring information, specifically:

[0125] According to heating control command, three-channel atmospheric data heating controller subsystem is used to vote heating control command, and based on majority voting logic and data integrity voting logic, the voted heating control command is obtained;

[0126] According to the voted heating control command, atmospheric data probe subsystem is provided with heating power, and atmospheric data probe subsystem is heated by using resistive element;

[0127] And the heated atmospheric data probe subsystem is monitored, and heating monitoring information is obtained;

[0128] S3, according to heating monitoring information, three-channel atmospheric data computer subsystem is used to obtain first channel atmospheric parameter, second channel atmospheric parameter, third channel atmospheric parameter, first voting atmospheric parameter, second voting atmospheric parameter and third voting atmospheric parameter, specifically:

[0129] S301, according to the heating monitoring information, using three-channel atmospheric data computer subsystem, in response to a channel atmospheric data computer receives the heating monitoring information, the heating monitoring information is forwarded to the remaining two channels atmospheric data computer;

[0130] S302, based on three-channel atmospheric data computer subsystem, combined with majority voting logic and data integrity voting logic, get the first voting atmospheric parameters, second voting atmospheric parameters and third voting atmospheric parameters;

[0131] S303, using three-channel atmospheric data computer subsystem to solve the channel atmospheric parameters, get the first channel atmospheric parameters, second channel atmospheric parameters and third channel atmospheric parameters.

[0132] S4, according to the first channel atmospheric parameters, second channel atmospheric parameters, third channel atmospheric parameters, first voting atmospheric parameters, second voting atmospheric parameters and third voting atmospheric parameters, identify the fault channel and isolation, and based on the isolated atmospheric data system, get the optimized atmospheric data.

[0133] In this embodiment, a kind of atmospheric data method for strengthening heating monitoring function, using three channels that are interlinked in atmospheric data system, complete the optimization of atmospheric data.

[0134] In this embodiment, based on majority voting principle, adopt probe heating monitoring information majority voting logic and data integrity voting logic, realize accurate voting, ensure data reliability.

Claims

1. An air data system with enhanced warm-up monitoring functionality, comprising: The application relates to a three-channel atmospheric data computer subsystem, a three-channel atmospheric data heating controller subsystem, an aircraft flight management subsystem and an atmospheric data probe subsystem. The atmospheric data probe subsystem is used for collecting atmospheric data in real time. The three-channel atmospheric data computer subsystem is used for receiving the atmospheric data, sending heating control commands to the three-channel atmospheric data heating controller subsystem, receiving heating monitoring information, outputting channel atmospheric parameters and voting atmospheric parameters. The three-channel atmospheric data computer subsystem comprises a first-channel atmospheric data computer, a second-channel atmospheric data computer and a third-channel atmospheric data computer. The first-channel atmospheric data computer is used for receiving the atmospheric data, obtaining calculated first-channel atmospheric parameters and sending heating control commands to the three-channel atmospheric data heating controller subsystem. The second-channel atmospheric data computer is used for receiving the atmospheric data, obtaining calculated second-channel atmospheric parameters and sending heating control commands to the three-channel atmospheric data heating controller subsystem. The third-channel atmospheric data computer is used for receiving the atmospheric data, obtaining calculated third-channel atmospheric parameters and sending heating control commands to the three-channel atmospheric data heating controller subsystem. The three-channel atmospheric data heating controller subsystem is used for receiving the heating control commands, monitoring the atmospheric data probe subsystem, calculating real-time power information of the probe by using voltage and current, obtaining the heating monitoring information by calculation and outputting the heating monitoring information. The three-channel atmospheric data heating controller subsystem comprises a first-channel atmospheric data heating controller, a second-channel atmospheric data heating controller and a third-channel atmospheric data heating controller. The first-channel atmospheric data heating controller, the second-channel atmospheric data heating controller and the third-channel atmospheric data heating controller each comprise a first communication module, a second communication module and a third communication module. The first communication module is used for receiving the heating control commands sent by the first-channel atmospheric data computer and sending the heating monitoring information to the first-channel atmospheric data computer. The second communication module is used for receiving the heating control commands sent by the second-channel atmospheric data computer and sending the heating monitoring information to the second-channel atmospheric data computer. The third communication module is used for receiving the heating control commands sent by the third-channel atmospheric data computer and sending the heating monitoring information to the third-channel atmospheric data computer. The aircraft flight management subsystem is used for formulating an aircraft flight management scheme according to the channel atmospheric parameters and the voting atmospheric parameters. The atmospheric data probe subsystem comprises a pitot tube, a static pressure hole, a total temperature sensor, an angle of attack sensor and a resistive element.

2. The enhanced heated monitor function air data system of claim 1, wherein, The pitot tube, the static pressure hole, the total temperature sensor and the angle of attack sensor are used for collecting atmospheric static pressure, total pressure and total temperature in real time, obtaining the atmospheric data and transmitting the atmospheric data to the three-channel atmospheric data computer subsystem. The resistive element is used for obtaining the heating control commands and heating the atmospheric data probe subsystem. ​ 3. The enhanced heated monitor function air data system of claim 1, wherein, The first channel atmospheric data computer is further configured to transmit the calculated first channel atmospheric parameter to the second channel atmospheric data computer and the third channel atmospheric data computer. The first channel atmospheric data computer receives the warming monitoring information, forwards the warming monitoring information to the second channel atmospheric data computer and the third channel atmospheric data computer, obtains first voted atmospheric parameters by combining majority voting logic and data integrity voting logic, and inputs the first channel atmospheric parameters and the first voted atmospheric parameters into the aircraft flight management subsystem. The second channel atmospheric data computer is further configured to transmit the calculated second channel atmospheric parameter to the first channel atmospheric data computer and the third channel atmospheric data computer. The second channel atmospheric data computer receives the warming monitoring information, forwards the warming monitoring information to the first channel atmospheric data computer and the third channel atmospheric data computer, obtains second voted atmospheric parameters by combining majority voting logic and data integrity voting logic, and inputs the second channel atmospheric parameters and the second voted atmospheric parameters into the aircraft flight management subsystem. The third channel atmospheric data computer is further configured to transmit the calculated third channel atmospheric parameter to the first channel atmospheric data computer and the second channel atmospheric data computer. The third channel atmospheric data computer receives the warming monitoring information, forwards the warming monitoring information to the first channel atmospheric data computer and the second channel atmospheric data computer, obtains third voted atmospheric parameters by combining majority voting logic and data integrity voting logic, and inputs the third channel atmospheric parameters and the third voted atmospheric parameters into the aircraft flight management subsystem.

4. The enhanced heated monitor function air data system of claim 3, wherein, The first channel atmospheric data warming controller, the second channel atmospheric data warming controller, and the third channel atmospheric data warming controller have the same function and structure, and are configured to receive a warming control command, perform warming monitoring on the atmospheric data probe subsystem, calculate real-time power information of the probe by using voltage and current, obtain warming monitoring information by calculation, and input the warming monitoring information into the first channel atmospheric data computer, the second channel atmospheric data computer, and the third channel atmospheric data computer, respectively.

5. The enhanced heated monitor function air data system of claim 4, wherein, The first channel atmospheric data warming controller, the second channel atmospheric data warming controller, and the third channel atmospheric data warming controller each further include a voting control module, a warming relay, and a warming monitoring module. The voting control module is configured to vote the warming control commands sent by the channel atmospheric data computers, and obtain voted warming control commands based on majority voting logic and data integrity voting logic. The warming relay is configured to provide a warming power supply for the atmospheric data probe subsystem according to the voted warming control commands. The warming monitoring module is configured to monitor the heated atmospheric data probe subsystem and obtain warming monitoring information.

6. The enhanced heated monitor function air data system of claim 3, wherein, The aircraft flight management subsystem includes an isolation module and a scheme formulation module. The isolation module is configured to identify a fault channel and isolate the fault channel according to the first channel atmospheric parameter, the second channel atmospheric parameter, the third channel atmospheric parameter, the first voting atmospheric parameter, the second voting atmospheric parameter and the third voting atmospheric parameter, and obtain an isolated atmospheric data system, in response to a deviation between the channel atmospheric parameter and the voting atmospheric parameter of a certain channel and the channel atmospheric parameter and the voting atmospheric parameter of the other two channels exceeding a preset threshold, and by using the first channel atmospheric data computer, the second channel atmospheric data computer and the third channel atmospheric data computer. The scheme formulation module is configured to measure the atmospheric parameter based on the isolated atmospheric data system, and formulate an aircraft flight management scheme according to the measured atmospheric parameter.

7. An atmospheric data method for reinforcing a warming monitoring function, applied to the atmospheric data system for reinforcing a warming monitoring function according to any one of claims 1 to 6, characterized by, The method comprises the following steps: S1, collecting atmospheric data by using an atmospheric data probe subsystem, and formulating a heating control command by using a three-channel atmospheric data computer subsystem; S2, heating and monitoring the atmospheric data probe subsystem by using a three-channel atmospheric data heating controller subsystem according to the heating control command, to obtain heating monitoring information; S3, obtaining the first channel atmospheric parameter, the second channel atmospheric parameter, the third channel atmospheric parameter, the first voting atmospheric parameter, the second voting atmospheric parameter and the third voting atmospheric parameter by using the three-channel atmospheric data computer subsystem according to the heating monitoring information; S4, identifying a fault channel and isolating the fault channel according to the first channel atmospheric parameter, the second channel atmospheric parameter, the third channel atmospheric parameter, the first voting atmospheric parameter, the second voting atmospheric parameter and the third voting atmospheric parameter, and obtaining optimized atmospheric data based on the isolated atmospheric data system.

8. The baro-data method of enhanced warm-up monitoring function according to claim 7, wherein, The S2 specifically comprises: voting the heating control command by using the three-channel atmospheric data heating controller subsystem according to the heating control command, obtaining the voted heating control command based on majority voting logic and data integrity voting logic; providing a heating power supply for the atmospheric data probe subsystem according to the voted heating control command, and heating the atmospheric data probe subsystem by using a resistive element; monitoring the heated atmospheric data probe subsystem to obtain heating monitoring information.

9. The enhanced temperature monitoring function air data method of claim 8, wherein, The S3 comprises the following steps: S301, forwarding the heating monitoring information to the remaining two channel atmospheric data computers in response to a certain channel atmospheric data computer receiving the heating monitoring information by using the three-channel atmospheric data computer subsystem according to the heating monitoring information; S302, obtaining the first voting atmospheric parameter, the second voting atmospheric parameter and the third voting atmospheric parameter based on the three-channel atmospheric data computer subsystem in combination with the majority voting logic and the data integrity voting logic; S303, calculating the first channel atmospheric parameter, the second channel atmospheric parameter and the third channel atmospheric parameter by using the three-channel atmospheric data computer subsystem.

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