Atmosphere data system and method with enhanced heating monitoring function

Abstract

The invention provides an atmosphere data system and method with an enhanced heating monitoring function, and belongs to the field of aircraft airborne avionics, and the atmosphere data system comprises a three-channel atmosphere data computer subsystem, a three-channel atmosphere data heating controller subsystem, an aircraft flight management subsystem and an atmosphere data probe subsystem. The three channels are cross-linked, and the communication architecture of the atmosphere data system with the enhanced heating monitoring function and the heating monitoring method are provided. The method solves the problem that according to an existing civil aircraft atmosphere data system, due to the fact that a communication link between an atmosphere data computer and an atmosphere data heating controller breaks down, single-channel atmosphere parameter output errors are caused.

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 oncoming airflow will directly rush into the small hole of the PITOT. Since the velocity of the airflow in the hole is rapidly reduced to zero, according to Bernoulli's principle, the kinetic energy of the airflow is fully converted into pressure energy, 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, causing the temperature to rise. The thermocouple inside the sensor converts heat into an electrical signal output by sensing the temperature change. 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 obtain various atmospheric parameters. If the probe fails, it will affect the measurement of atmospheric parameters and cause safety risk events.

[0004] The main cause of air data sensor failure is probe icing. Water vapor exists in the atmosphere. When an aircraft flies at high altitude or in low-temperature conditions, the ambient air temperature may be below freezing. This is especially true when flying in clouds containing supercooled water droplets. Water vapor can easily condense onto the probe surface. Icing can severely impact the proper functioning of the probe. For pitot tubes, ice can directly block the measurement aperture or alter the airflow pattern, resulting in failure of total pressure measurements. For total temperature sensors, ice can block the air outlet, causing temperature readings to rise. For angle of attack sensors, ice can freeze the wind vane, preventing changes in the measured angle of attack. If the flight control system or the pilot relies on erroneous data, the aircraft could stall or overspeed, posing a direct threat to flight safety. Many notorious air disasters in civil aviation history have been linked to air data probe icing. Therefore, to ensure the accuracy and reliability of air data measurements, air data probes must be heated for anti-icing and de-icing. The heating function of air data probes is a key design feature for flight safety.

[0005] The device in the air data system that provides air data probe heating is the air data heating controller (ADHC). The ADHC provides power for the air data probe and monitors the probe's heating function through current and voltage monitoring. The ADHC's heating function is controlled by both the air data computer and manual control. The ADHC provides automatic heating control. When it detects that the aircraft is in flight or about to take flight, it controls the ADHC to increase probe heating. A manual heating switch allows the pilot to manually control the temperature, forcing probe heating in the event of a malfunction in the aircraft.

[0006] To meet the high reliability requirements of aviation safety, the air data system (ADS) on existing civil aircraft utilizes 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. The basic architecture of the triple-redundant design divides the ADS probes, ADS computers, ADS heating controllers, and other equipment and communication links into three independent, functionally identical channels, each with complete measurement, calculation, output, and probe heating capabilities. The triple-redundant system utilizes a "compare-vote-monitor" mechanism to identify and isolate faults. The data calculated by the three ADS computers are interconnected, and the output of the final atmospheric parameters is determined by majority voting. If the output data of a channel deviates from the other two by more than a preset threshold, all three ADS computers identify that channel as faulty and isolate it. Simultaneously, the cockpit warning system alerts the crew to the failure of a redundant channel. In this case, the two 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: 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 channel probe heating monitoring, 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; Due to the loss of control ability of the atmospheric data heating controller, the unexpected loss of probe heating problem may occur, resulting in the loss of channel probe heating, and the output of error single-channel atmospheric parameter.

[0008] 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

[0009] 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 single-channel atmospheric parameter output 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.

[0010] 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; The atmospheric data probe subsystem is used for real-time acquisition of atmospheric data. 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. 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. 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.

[0011] The beneficial effects of the present application are: the present application adopts the communication architecture of a three-channel atmospheric data system, the channels are cross-linked, each channel outputs the atmospheric parameters of the channel and the voted atmospheric parameters to the aircraft flight management subsystem, and uses the heating monitoring method, when the communication link between the three-channel atmospheric data computer subsystem and the three-channel atmospheric data heating controller subsystem fails, the monitoring state of the atmospheric data computer for the heating of the channel probe will not be misjudged, leading to the output of incorrect atmospheric parameters; When the monitoring capability of the three-channel atmospheric data heating controller subsystem fails, the monitoring state of the three-channel atmospheric data computer for the heating of the channel probe will not be misjudged, leading to the output of incorrect atmospheric parameters, 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.

[0012] 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. The pitot tube, the static pressure hole, the total temperature sensor, and the angle of attack sensor are used 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. The resistive element is used to obtain a heating control command and heat the atmospheric data probe subsystem.

[0013] 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. The first-channel atmospheric data computer is used to accept 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. The first-channel atmospheric data computer is used to accept 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. The second-channel atmospheric data computer is used to accept 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. 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. 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. 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.

[0014] The above further scheme has the beneficial effects that: the three-channel atmospheric data computer is used to exchange and connect the data of the atmospheric data computers, and the majority voting decision logic and the data integrity decision logic are combined to accurately obtain the channel atmospheric parameters and the decision atmospheric parameters, thereby reducing the influence of the parameters caused by the channel failure, and when the data transmission of a single channel link is blocked, the system can maintain normal heating state monitoring.

[0015] 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. 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, and 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.

[0016] Further, 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, a third communication module, a decision control module, a heating relay, and a heating monitoring module. 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. The second communication module is configured to receive the heating control command sent by the second channel atmospheric data computer and send heating monitoring information to the second channel atmospheric data computer. The third communication module is configured to receive the heating control command sent by the third channel atmospheric data computer and send heating monitoring information to the third channel atmospheric data computer. 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. The heating relay is configured to provide heating power for the atmospheric data probe subsystem according to the voted heating control command. The heating monitoring module is configured to monitor the heated atmospheric data probe subsystem and obtain heating monitoring information.

[0017] Further, the aircraft flight management subsystem comprises an isolation module and a scheme formulation module. 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 in response to the deviation of the channel atmospheric parameter and the voting atmospheric parameter of a certain channel from the channel atmospheric parameters and the voting atmospheric parameters of the other two channels exceeding a preset threshold, and isolate the fault channel to obtain an isolated atmospheric data system. 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.

[0018] The above further scheme has the beneficial effects that: the present application adopts a three-channel atmospheric data heating controller subsystem, and adopts a voting control, a heating relay and a heating monitoring module in the atmospheric data heating controller, and realizes accurate isolation of a fault channel based on majority voting logic and data integrity voting logic, and formulates a safer aircraft flight management scheme, so that when a single channel fails, the system can accurately isolate the fault channel without being affected by data transmission obstacles, thereby improving the heating state monitoring capability of the system and improving the safety of aircraft flight.

[0019] To achieve the above-mentioned purpose, according to the second aspect of the present application, a kind of atmospheric data method of strengthening heating monitoring function is provided, comprising the following steps: 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; S2, according to the warming control command, using three-channel atmospheric data warming controller subsystem, atmospheric data probe subsystem is monitored, get warming monitoring information; S3, according to the warming monitoring information, using three-channel atmospheric data computer subsystem, get the 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; S4, according to the 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, identify fault channel and isolation, and based on the isolated atmospheric data system, obtain optimized atmospheric data.

[0020] Further, the S2 specifically is: According to the warming control command, using three-channel atmospheric data warming controller subsystem, the warming control command is voted, based on majority voting decision logic and data integrity voting logic, get the voting warming control command; According to the voting warming control command, the atmospheric data probe subsystem is provided with a warming power supply, and the atmospheric data probe subsystem is warmed by using a resistive element; And the heated atmospheric data probe subsystem is monitored, and the warming monitoring information is obtained.

[0021] Further, the S3 includes the following steps: S301, according to the warming monitoring information, using three-channel atmospheric data computer subsystem, in response to a certain channel atmospheric data computer receiving warming monitoring information, the warming monitoring information is forwarded to the remaining two channel atmospheric data computer; S302, based on three-channel atmospheric data computer subsystem, combined with majority voting decision logic and data integrity voting logic, get the first voting atmospheric parameter, second voting atmospheric parameter and third voting atmospheric parameter; S303, using three-channel atmospheric data computer subsystem to solve the channel atmospheric parameter, get the first channel atmospheric parameter, second channel atmospheric parameter and third channel atmospheric parameter.

[0022] The beneficial effects of the above further scheme are: the present application adopts three-channel atmospheric data crosslinking, combined with majority voting decision logic and data integrity voting logic, realizes the accurate voting of warming control command and warming monitoring information, optimizes atmospheric data, improves the quality of atmospheric parameter, reduces the occurrence of output error atmospheric parameter, improves the signal integrity of atmospheric data and flight safety. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1Configuration diagram of atmospheric data system of the present application.

[0024] Figure 2 Configuration diagram of atmospheric data heating controller of the present embodiment.

[0025] Figure 3 Flow chart of the method of the present embodiment. DETAILED DESCRIPTION

[0026] The specific embodiments of the present application are described below to facilitate the understanding of the present application for those skilled in the art, but it should be clear that the present application is not limited to the scope of the specific embodiments, and for those skilled in the art, it is obvious that various changes are within the spirit and scope of the present application defined and determined by the appended claims, and all the inventions utilizing the concept of the present application are within the scope of protection.

[0027] Before the present embodiment is described, the following terms are explained: PITOT: air speed tube; STATIC: static pressure hole; TAT: total temperature sensor; AOA: angle of attack sensor; FMS: aircraft flight management subsystem.

[0028] Embodiment 1 In the present embodiment, according to the distinction of aircraft type, the aircraft atmospheric data system exists in independent configuration (with independent atmospheric data computer), resident configuration (atmospheric data computer is composed of atmospheric data module (ADM) and atmospheric data software (ADA), and the atmospheric data software is resident in other systems of the aircraft); the two atmospheric 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.

[0029] As shown in Figure 1 , 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.

[0030] In the present embodiment, Figure 1 the atmospheric data system with enhanced heating monitoring function in the above-mentioned The atmospheric data system with enhanced heating monitoring function is composed of three channels, including: an atmospheric data probe subsystem, a three-channel atmospheric data heating controller subsystem, a three-channel atmospheric data computer subsystem, and an aircraft flight management subsystem; The atmospheric data probe subsystem, the three-channel atmospheric data heating controller subsystem, the three-channel atmospheric data computer subsystem and the aircraft flight management subsystem are sequentially connected; the atmospheric data probe subsystem is connected with the three-channel atmospheric data computer subsystem; From the channel level, each channel is composed of one atmospheric data computer (ADC), one atmospheric data heating controller (ADHC) and a plurality of atmospheric data probes (including PITOT, STATIC, TAT and AOA, etc.).

[0031] The atmospheric data probe subsystem is used for collecting atmospheric data in real time, and includes a pitot tube, a static pressure hole, a total temperature sensor, an angle of attack sensor and a resistive element. 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 atmospheric data, and transmitting the atmospheric data to the three-channel atmospheric data computer subsystem. The resistive element is used for obtaining a heating control command and heating the atmospheric data probe subsystem.

[0032] In this embodiment, the atmospheric data probe subsystem collects atmospheric static pressure, total pressure and total temperature information in real time through the 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. The heating function of each component in the atmospheric data probe subsystem is realized through the resistive element, that is, the resistive element in the probe is powered and heated.

[0033] The three-channel atmospheric data computer subsystem is used for receiving atmospheric data, sending a heating control command to the three-channel atmospheric data heating controller subsystem, receiving heating monitoring information, outputting 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. The first-channel atmospheric data computer is used for receiving atmospheric data, obtaining calculated first-channel atmospheric parameters, sending a heating control command to the three-channel atmospheric data heating controller subsystem, and transmitting the calculated first-channel atmospheric parameters to the second-channel atmospheric data computer and the third-channel atmospheric data computer. The first-channel atmospheric data computer receives heating monitoring information, forwards the heating monitoring information to the second-channel atmospheric data computer and the third-channel atmospheric data computer, obtains first voting atmospheric parameters in combination with majority voting logic and data integrity voting logic, and inputs the first-channel atmospheric parameters and the first voting atmospheric parameters into the aircraft flight management subsystem. 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. 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. 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. 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.

[0034] The three-channel atmospheric data heating controller subsystem is configured to receive a heating control command, perform heating monitoring on the atmospheric data probe subsystem, calculate real-time power information of the probe using voltage and current, obtain heating monitoring information through 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. The three-channel atmospheric data heating controller subsystem is configured to receive a heating control command, perform heating monitoring on the atmospheric data probe subsystem, calculate real-time power information of the probe using voltage and current, obtain heating monitoring information through 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. 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, and 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 using voltage and current, obtain heating monitoring information through 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.

[0035] 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 heating control commands 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 from ADHC1, ADHC2 and ADHC3; ADC1 sends the calculated first channel atmospheric parameters to the second channel atmospheric data computer (ADC2) and the third channel atmospheric data computer (ADC3), forwards the ADHC2 heating monitoring information to ADC2, and forwards the ADHC3 heating monitoring information to ADC3; Similarly, ADC2 sends heating control commands to the atmospheric data heating controllers of the three channels, receives atmospheric data probe heating monitoring information of the three channels, 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; Similarly, ADC3 sends heating control commands to the ADHCs of the three channels, receives probe heating monitoring information of the three channels, 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.

[0036] In this embodiment, each atmospheric data computer judges the probe heating monitoring information of the probe of 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. 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.

[0037] Table 1

[0038] The data integrity voting takes the ADHC probe heating monitoring information directly received by the ADC of the channel as the main monitoring information. When the ADHC probe heating monitoring information of the channel is heating, the probe heating state of the channel is considered to be heating. When the ADHC probe heating monitoring information of the channel is not heating, if the ADHC probe heating monitoring information of the channel forwarded by the ADC of the other channel is consistent with heating, the probe heating state of 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.

[0039] Table 2

[0040] In the embodiment, the atmospheric data heating controller (ADHC) determines the automatic heating control logic of the probe 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. The majority voting method is to take the majority of the heating control commands sent by the three-channel atmospheric data heating controller subsystem. Taking the first channel as an example, the majority voting logic of the heating control command is shown in Table 3.

[0041] Table 3

[0042] The data integrity voting is to take the heating control command sent by the ADC of the channel as the main heating command. When the control command of the ADC of the channel is heating, the ADHC of the channel heats the probe. When the control command of the ADC of the channel is not heating, if the control commands of the ADCs of other channels are consistent with heating, the ADHC of the channel also heats the probe. Taking the first channel as an example, the data integrity voting logic of the heating control command is shown in Table 4.

[0043] Table 4

[0044] 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, a third communication module, a voting control module, a heating relay, and a heating monitoring module. The first communication module is configured to receive the heating control command sent by the first-channel atmospheric data computer and send the heating monitoring information to the first-channel atmospheric data computer. The second communication module is configured to receive the heating control command sent by the second-channel atmospheric data computer and send the heating monitoring information to the second-channel atmospheric data computer. The third communication module is configured to receive the heating control command sent by the third-channel atmospheric data computer and send the heating monitoring information to the third-channel atmospheric data computer. The voting control module is configured to vote on the heating control commands sent by the atmospheric data computers of the channels, obtain the voted heating control command based on the majority voting logic and the data integrity voting logic. The heating relay is configured to provide the atmospheric data probe subsystem with a heating power source according to the voted heating control command. The heating monitoring module is configured to monitor the heated atmospheric data probe subsystem and obtain the heating monitoring information.

[0045] In this embodiment, as shown in Figure 2 The first communication module receives the warming control command sent by the first channel atmospheric data computer (ADC1) and sends the probe warming monitoring information to the first channel atmospheric data computer (ADC1), the second communication module receives the warming control command sent by the second channel atmospheric data computer (ADC2) and sends the probe warming monitoring information to the second channel atmospheric data computer (ADC2), and the third communication module receives the warming control command sent by the third channel atmospheric data computer (ADC3) and sends the probe warming monitoring information to the third channel atmospheric data computer (ADC3); The voting control module (VOTE) receives the warming control command sent by the three-channel atmospheric data computer ADC, sends the voting control command after voting to the warming relay (RLY); The warming relay (RLY) provides the warming power supply to the atmospheric data probe based on the warming control command. The warming monitoring module (MON) monitors the output voltage, current and other probe warming monitoring information of the warming relay (RLY) and sends them to ADC1, ADC2 and ADC3 through COM1, COM2 and COM3.

[0046] The warming monitoring information of the probe controlled by the atmospheric data warming controller (ADHC) is realized by the following method: the warming monitoring module (MON) monitors the voltage, current and other information output by the warming relay (RLY), calculates the real-time power information of the probe through the voltage and current, and if all parameters of the voltage, current and power of a single probe monitored by the warming monitoring module (MON) meet the preset threshold requirement, it is considered that the probe is in the warming state, otherwise it is considered that the probe is in the non-warming state. According to the specific design of the atmospheric data warming controller ADHC (ADHC), the monitoring parameters can be trimmed in the three parameters of voltage, current and power.

[0047] In this embodiment, the aircraft flight management subsystem comprises an isolation module and a scheme formulation module. 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, in response to a deviation of a channel atmospheric parameter and a voting atmospheric parameter of a certain channel from channel atmospheric parameters and voting atmospheric parameters of the other two channels exceeding a preset threshold, 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. 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.

[0048] Embodiment 2 As Figure 3 shown, the present application provides an atmospheric data method with enhanced heating monitoring function, which implements an atmospheric data system with enhanced heating monitoring function as described in Embodiment 1, and includes the following steps: S1, using an atmospheric data probe subsystem to collect atmospheric data, and using a three-channel atmospheric data computer subsystem to formulate a heating control command; S2, according to the heating control command, using a three-channel atmospheric data heating controller subsystem to monitor the atmospheric data probe subsystem, and obtaining heating monitoring information, specifically: According to the heating control command, using the three-channel atmospheric data heating controller subsystem to vote on the heating control command, and obtaining a voted heating control command based on majority voting logic and data integrity voting logic; 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; and monitoring the heated atmospheric data probe subsystem to obtain heating monitoring information; S3, according to the heating monitoring information, using the three-channel atmospheric data computer subsystem to obtain 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, specifically: S301, according to the heating monitoring information, using the three-channel atmospheric data computer subsystem, in response to a certain channel atmospheric data computer receiving the heating monitoring information, forwarding the heating monitoring information to the remaining two channel atmospheric data computers; S302, based on the three-channel atmospheric data computer subsystem, combining the majority voting logic and the data integrity voting logic, obtaining the first voting atmospheric parameter, the second voting atmospheric parameter and the third voting atmospheric parameter; S303, calculating the channel atmospheric parameters by using the three-channel atmospheric data computer subsystem to obtain the first channel atmospheric parameter, the second channel atmospheric parameter and the third channel atmospheric parameter.

[0049] S4, identifying the fault channel and isolating 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 the optimized atmospheric data based on the isolated atmospheric data system.

[0050] In this embodiment, a method for strengthening the monitoring function of atmospheric data is used in the atmospheric data system, which uses three channels that are cross-linked with each other to complete the optimization of atmospheric data.

[0051] In this embodiment, based on the majority voting principle, the probe warming monitoring information majority voting logic and the data integrity voting logic are used to realize accurate voting and ensure data reliability.

Claims

1. An atmospheric data system with enhanced heating monitoring function, characterized in that: include: Three-channel air data computer subsystem, three-channel air data heating controller subsystem, aircraft flight management subsystem and air data probe subsystem; The atmospheric data probe subsystem is used to collect atmospheric data in real time; The three-channel atmospheric data computer subsystem is used to receive atmospheric data, send heating control commands to the three-channel atmospheric data heating controller subsystem, receive heating monitoring information, and output channel atmospheric parameters and voting atmospheric parameters; The three-channel atmospheric data heating controller subsystem is used to receive heating control commands, monitor the heating of the atmospheric data probe subsystem, calculate the real-time power information of the probe using voltage and current, and obtain heating monitoring information by calculating the real-time power information; The aircraft flight management subsystem is used to formulate an aircraft flight management plan based on the channel atmospheric parameters and the voting atmospheric parameters.

2. The atmospheric data system with enhanced heating monitoring function according to claim 1, characterized in that: The atmospheric data probe subsystem includes: a pitot tube, a static pressure port, a total temperature sensor, an angle of attack sensor, and a resistive element; The pitot tube, static pressure port, total temperature sensor and angle of attack sensor are used 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; The resistive element is used to obtain a heating control command to heat the atmospheric data probe subsystem.

3. The atmospheric data system with enhanced heating monitoring function according to claim 1, characterized in that: The three-channel air data computer subsystem includes: a first channel air data computer, a second channel air data computer, and a third channel air data computer; The first channel atmospheric data computer is used to receive atmospheric data, obtain resolved first channel atmospheric parameters, and send heating control commands to the three-channel atmospheric data heating controller subsystem to transmit the resolved first channel atmospheric parameters to the second channel atmospheric data computer and the third channel atmospheric data computer; Receive heating monitoring information, forward the heating monitoring information to the second channel atmospheric data computer and the third channel atmospheric data computer, combine majority voting logic and data integrity voting logic to obtain first voting atmospheric parameters, and input the first channel atmospheric parameters and the first voting atmospheric parameters into the aircraft flight management subsystem; The second channel atmospheric data computer is used to receive atmospheric data, obtain resolved second channel atmospheric parameters, and send heating control commands to the three-channel atmospheric data heating controller subsystem to transmit the resolved second channel atmospheric parameters to the first channel atmospheric data computer and the third channel atmospheric data computer; Receive heating monitoring information, forward the heating monitoring information to the first channel atmospheric data computer and the third channel atmospheric data computer, combine majority voting logic and data integrity voting logic to obtain second voting atmospheric parameters, and input the second channel atmospheric parameters and the second voting atmospheric parameters into the aircraft flight management subsystem; The third channel atmospheric data computer is used to receive atmospheric data, obtain resolved third channel atmospheric parameters, and send heating control commands to the three-channel atmospheric data heating controller subsystem to transmit the resolved third channel atmospheric parameters to the first channel atmospheric data computer and the second channel atmospheric data computer; Receive heating monitoring information, forward the heating monitoring information to the first channel atmospheric data computer and the second channel atmospheric data computer, combine the majority voting logic and the data integrity voting logic to obtain the third voting atmospheric parameters, and input the third channel atmospheric parameters and the third voting atmospheric parameters into the aircraft flight management subsystem.

4. The atmospheric data system with enhanced heating monitoring function according to claim 3, characterized in that: The three-channel atmospheric data heating controller subsystem includes: a first channel atmospheric data heating controller, a second channel atmospheric data heating controller, and a third channel atmospheric data heating controller; The functions and structures of the first-channel atmospheric data heating controller, the second-channel atmospheric data heating controller and the third-channel atmospheric data heating controller are the same, and they are used to receive heating control commands, perform heating monitoring on the atmospheric data probe subsystem, calculate the real-time power information of the probe using voltage and current, obtain the real-time power information through calculation, obtain heating monitoring information, 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 respectively.

5. The atmospheric data system with enhanced heating monitoring function according to claim 4, characterized in that: The first channel atmospheric data heating controller, the second channel atmospheric data heating controller and the third channel atmospheric data heating controller each include: a first communication module, a second communication module, a third communication module, a voting control module, a heating relay and a heating monitoring module; 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; The second communication module is used to receive the heating control command sent by the second channel atmospheric data computer and send the heating monitoring information to the second channel atmospheric data computer; The third communication module is used to receive the heating control command sent by the third channel atmospheric data computer and send the heating monitoring information to the third channel atmospheric data computer; The voting control module is used to vote on the heating control commands sent by the atmospheric data computers of each channel, and obtain the voted heating control commands based on majority voting logic and data integrity voting logic; The heating relay is used to provide heating power to the atmospheric data probe subsystem according to the voted heating control command; The heating monitoring module is used to monitor the heated atmospheric data probe subsystem and obtain heating monitoring information.

6. The atmospheric data system with enhanced heating monitoring function according to claim 3, characterized in that: The aircraft flight management subsystem includes: an isolation module and a plan formulation module; The isolation module is configured to identify a faulty channel using 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, 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 isolate the faulty channel using the first channel atmospheric data computer, the second channel atmospheric data computer, and the third channel atmospheric data computer to obtain an isolated atmospheric data system; The plan formulation module is used to measure atmospheric parameters based on the isolated atmospheric data system and formulate an aircraft flight management plan based on the measured atmospheric parameters.

7. An atmospheric data method for enhancing heating monitoring function, applied to the atmospheric data system for enhancing heating monitoring function as claimed in claims 1-6, characterized in that: The following steps are involved: S1. Use the atmospheric data probe subsystem to collect atmospheric data, and use the three-channel atmospheric data computer subsystem to formulate heating control commands; S2. Based on the heating control command, the three-channel atmospheric data heating controller subsystem is used to monitor the heating of the atmospheric data probe subsystem to obtain heating monitoring information; S3. Based on the heating monitoring information, the three-channel atmospheric data computer subsystem is used to obtain 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; S4. Identify and isolate the faulty channel 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, and obtain optimized atmospheric data based on the isolated atmospheric data system.

8. The atmospheric data method for enhancing heating monitoring function according to claim 7, characterized in that: The S2 is specifically: According to the heating control command, the three-channel atmospheric data heating controller subsystem is used to vote on the heating control command, and the voting heating control command is obtained based on the majority voting logic and data integrity voting logic; According to the voted heating control command, a heating power supply is provided to the air data probe subsystem, and the air data probe subsystem is heated by using a resistive element; The heated atmospheric data probe subsystem is monitored to obtain heating monitoring information.

9. The atmospheric data method for enhancing heating monitoring function according to claim 8, characterized in that: The S3 includes the following steps: S301, based on the heating monitoring information, using the three-channel air data computer subsystem, in response to a channel air data computer receiving the heating monitoring information, forwarding the heating monitoring information to the remaining two channel air data computers; S302: Based on the three-channel atmospheric data computer subsystem, a first voting atmospheric parameter, a second voting atmospheric parameter, and a third voting atmospheric parameter are obtained by combining majority voting logic and data integrity voting logic; S303 , using the three-channel atmospheric data computer subsystem to calculate the channel atmospheric parameters to obtain the first channel atmospheric parameters, the second channel atmospheric parameters, and the third channel atmospheric parameters.

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