Aeronautical instrument upgrading and maintaining method

Abstract

The invention provides an aeronautical instrument upgrading maintenance method, which belongs to the technical field of aeronautical instruments, and specifically comprises the following steps that wireless communication modules are designed on an aeronautical instrument and upgrading equipment, and the aeronautical instrument and the upgrading equipment interact through the wireless communication modules; entering a wireless communication module loading interface on the aeronautical instrument through a key, and pairing the wireless communication module of the aeronautical instrument and the wireless communication module of the upgrading equipment; and selecting upgrading maintenance data on the upgrading equipment, transmitting the upgrading maintenance data to the aviation instrument through the wireless block, and programming the upgrading maintenance data into the aviation instrument system. According to the processing scheme, the software can be quickly upgraded only by using the aircraft power supply, and the maintenance workload is reduced.

Description

Technical Field

[0001] The present application relates to the field of aviation instruments, and in particular to an aviation instrument upgrading and maintenance method. Background Art

[0002] At present, there are several ways to maintain and upgrade the software of airborne aviation instruments:

[0003] 1. Remove the product from the aircraft and directly connect the hardware circuit board that needs to be upgraded through the JTAG emulator to perform software upgrade;

[0004] 2. Remove the product from the aircraft and use a dedicated cable to connect the product to a computer via a serial port or network port for software upgrade;

[0005] 3. The avionics management computer uses the aviation network bus to upgrade the aviation instrument software.

[0006] The first method requires disassembling the product and removing the circuit board that needs to be upgraded. Since the circuit board needs to be removed, new quality problems are often introduced. The upgrade steps are complicated and time-consuming.

[0007] The second method is an improvement on the first method. It does not require disassembling the product, but the product still needs to be removed from the aircraft and special cables and equipment are used to upgrade the software.

[0008] The third method is an improvement over the second method. However, it has the following problems: the aviation instrument needs to be directly connected to the avionics management computer bus, and the processor needs to support the bus loading function. Software upgrades require the avionics management computer and other related equipment to be turned on for upgrades, which involves many parties, is complex to operate, and has high communication costs. Summary of the invention

[0009] In view of this, the present application provides an aviation instrument upgrade and maintenance method, which solves the problems in the prior art and can achieve rapid software upgrades using only the aircraft power supply, thereby reducing maintenance workload.

[0010] The present application provides an aviation instrument upgrade and maintenance method using the following technical solutions:

[0011] An aviation instrument upgrade and maintenance method comprises the following steps:

[0012] Design wireless communication modules on the aviation instruments and the upgraded equipment, and the aviation instruments and the upgraded equipment interact with each other through the wireless communication modules;

[0013] Enter the wireless communication module loading interface by pressing a button on the aviation instrument, and pair the wireless communication module of the aviation instrument with the wireless communication module of the upgrade device;

[0014] Select upgrade maintenance data on the upgrade device, transmit the upgrade maintenance data to the aviation instrument through the wireless block and burn it into the aviation instrument system.

[0015] Optionally, the wireless communication modules of the aviation instrument and the upgrade device each include a wireless protocol chip, a wireless driver chip, and an antenna;

[0016] On the aviation instrument, the wireless protocol chip is communicatively connected to the processor of the aviation instrument, the wireless driver chip is electrically connected to the wireless protocol chip, and the antenna is electrically connected to the wireless driver chip;

[0017] On the upgrade device, the wireless protocol chip is electrically connected to the upgrade computer via the USB interface communication protocol chip, the wireless driver chip is electrically connected to the wireless protocol chip, and the antenna is electrically connected to the wireless driver chip.

[0018] Optionally, the aviation instrument includes a power supply control module, the power supply control module is connected to an input power supply from the aircraft to supply power to the aviation instrument, and the power supply control module converts the input power supply into a secondary power supply for supplying power to various components in the aviation instrument;

[0019] On the aviation instrument, the antenna is electrically connected to the metal shell of the aviation instrument, and the grounding of the metal shell of the aviation instrument, the input power ground and the secondary power ground are independent of each other.

[0020] Optionally, the wireless communication module of the aviation instrument also includes a power control circuit, which is electrically connected to the power control module. The processor is electrically connected to the wireless protocol chip and the wireless driver chip through the power control circuit, and the processor controls the power supply and power off of the wireless protocol chip and the wireless driver chip through the power control circuit.

[0021] Optionally, after selecting the upgrade maintenance data on the upgrade device, the upgrade computer of the upgrade device verifies each data packet of the upgrade maintenance data;

[0022] The wireless communication module of the aviation instrument verifies the received upgrade and maintenance data.

[0023] Optionally, the wireless communication module of the aviation instrument receives the upgraded maintenance data for double backup.

[0024] Optionally, after entering the wireless communication module loading interface by pressing a button on the aviation instrument, the pairing password is displayed on the wireless communication module loading interface. After the pairing password is input on the upgrade computer used for the upgrade device, the wireless communication module of the aviation instrument and the wireless communication module of the upgrade device are successfully paired.

[0025] In summary, this application includes the following beneficial technical effects:

[0026] The present application provides a highly reliable in-situ wireless upgrade method for aviation instruments. Compared with the traditional aviation instrument upgrade and maintenance method, the aviation instruments can be upgraded quickly using only the aircraft power supply without being removed from the aircraft, thereby reducing the maintenance workload, reducing the required human and material resources, and improving work efficiency and maintenance quality. The upgrade distance is indicated, and the aviation instrument software can be upgraded remotely without being limited to the upgrade cable length. Compared with the avionics management computer network upgrade, it has stronger adaptability and higher upgrade efficiency.

[0027] This application designs point-to-point enhanced wireless transceiver interconnection hardware, breaks through the high-shielding electromagnetic compatibility design of aviation instruments, increases the upgrade distance, and achieves a stable wireless communication relationship.

[0028] This application designs high-reliability wireless Internet communication software, and designs communication fault-tolerant algorithms, cryptographic communication verification technology, and flash storage reading verification algorithms to prevent malicious tampering and improve upgrade stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 The principle block diagram of the wireless communication module for aviation instruments;

[0031] Figure 2 It is the functional block diagram of the upgraded equipment;

[0032] Figure 3 This is a block diagram of the power supply principle for aviation instruments;

[0033] Figure 4 Provide maintenance flow chart for aviation instrument upgrades;

[0034] Figure 5 This is the upgrade maintenance flowchart for upgraded equipment. DETAILED DESCRIPTION

[0035] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0036] The following describes the implementation methods of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific implementation methods, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the absence of conflict, the following embodiments and the features in the embodiments can be combined with each other. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work belong to the scope of protection of the present application.

[0037] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein can be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present application, it should be understood by those skilled in the art that an aspect described herein can be implemented independently of any other aspect, and two or more of these aspects can be combined in various ways. For example, any number of aspects described herein can be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein can be used to implement this device and / or practice this method.

[0038] It should also be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The illustrations only show the components related to the present application rather than being drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed at will, and the component layout may also be more complicated.

[0039] Additionally, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the aspects described may be practiced without these specific details.

[0040] An embodiment of the present application provides an aviation instrument upgrade and maintenance method.

[0041] An aviation instrument upgrade and maintenance method comprises the following steps:

[0042] like Figure 1 and Figure 2 As shown, a wireless communication module is designed on the aviation instrument and the upgrade device, and the aviation instrument and the upgrade device interact with each other through the wireless communication module.

[0043] Enter the wireless communication module loading interface by pressing buttons on the aviation instrument, and pair the wireless communication module of the aviation instrument with the wireless communication module of the upgrade device.

[0044] Select upgrade maintenance data on the upgrade device, transmit the upgrade maintenance data to the aviation instrument through the wireless block and burn it into the aviation instrument system.

[0045] The wireless communication modules of the aviation instrument and the upgrade equipment both include a wireless protocol chip, a wireless driver chip and an antenna. The aviation instrument includes a power control module, which is connected to the input power of the aircraft to power the aviation instrument. The power control module converts the input power into a secondary power supply for powering various components in the aviation instrument. The input power is 28V and the secondary power is 5V. The upgrade equipment also includes an upgrade computer and a USB interface communication protocol chip.

[0046] like Figure 3 As shown, on the aviation instrument, the wireless protocol chip and the processor of the aviation instrument are communicatively connected, the wireless driver chip and the wireless protocol chip are electrically connected, and the antenna and the wireless driver chip are electrically connected; the antenna and the metal shell of the aviation instrument are electrically connected, and the metal shell grounding, 28V input power ground and 5V secondary power ground of the aviation instrument are independent of each other. Due to the electromagnetic compatibility design of the aviation instrument, the antenna of the wireless communication module of the aviation instrument of this application is an enhanced antenna; and the three-ground isolation is designed for the aviation instrument, the input power ground and the secondary power ground are independent of each other, and the metal shell needs to be an independent shell ground in order to achieve the electromagnetic shielding effect, and the enhanced antenna is connected to the shell ground, and the entire shell is used as an antenna.

[0047] like Figure 3 As shown, the wireless communication module of the aviation instrument also includes a power control circuit, the power control circuit is electrically connected to the power control module, the processor is electrically connected to the wireless protocol chip and the wireless driver chip through the power control circuit, and the processor controls the power supply and power off of the wireless protocol chip and the wireless driver chip through the power control circuit. When the software upgrade is not required, the power supply of the wireless protocol chip and the wireless driver chip of the aviation instrument is disconnected, and the wireless communication module of the aviation instrument is turned off, which can better achieve electromagnetic shielding and reduce electromagnetic radiation effects, while saving power consumption and ensuring protection from wireless communication attacks.

[0048] On the upgrade device, the wireless protocol chip is electrically connected to the upgrade computer via the USB interface communication protocol chip, the wireless driver chip is electrically connected to the wireless protocol chip, and the antenna is electrically connected to the wireless driver chip.

[0049] After selecting the upgrade maintenance data on the upgrade device, the upgrade computer of the upgrade device verifies each data packet of the upgrade maintenance data; the processor of the wireless communication module of the aviation instrument is connected to the Flash memory, so that the aviation instrument has the Flash storage reading verification function, and the wireless communication module of the aviation instrument verifies each data packet of the upgrade maintenance data after receiving the upgrade maintenance data to prevent data errors.

[0050] After receiving the upgrade and maintenance data, the wireless communication module of the aviation instrument performs double backup of the upgrade and maintenance data.

[0051] After entering the wireless communication module loading interface by pressing a button on the aviation instrument, a random pairing password is displayed on the wireless communication module loading interface. After inputting the pairing password on the upgrade computer of the upgrade device, the wireless communication module of the aviation instrument and the wireless communication module of the upgrade device are successfully paired. Wireless data encryption transmission is realized to ensure that the loading is not leaked. In addition, after entering the wireless communication module loading interface by pressing a button on the aviation instrument, the operator waits for 3 seconds to confirm the loading of the wireless communication module. If there is no confirmation to enter the loading within 3 seconds, the aviation instrument automatically runs the application software.

[0052] like Figure 4 As shown, the embodiment of the present application also discloses an upgrade operation process of the aviation instrument, initializes the processor and peripherals, initializes the data, enters the wireless communication module loading interface by pressing buttons on the aviation instrument, generates a random pairing password when the wireless communication module is loaded, and after the aviation instrument and the upgrade device are successfully paired, verifies each frame of the received upgrade and maintenance data packet, and after completing the transmission of all upgrade and maintenance data, the aviation instrument runs the new application code.

[0053] like Figure 5 As shown, the embodiment of the present application also discloses the upgrade operation process of the upgrade equipment, initializing the board of the upgrade equipment, initializing the data and the software to be loaded, starting the wireless scan, displaying the aviation instrument to be connected, entering the pairing password, and successfully connecting the aviation instrument to be upgraded; selecting the software data to be upgraded, and burning the upgrade maintenance data into the system of the aviation instrument through the wireless communication module. After the burning is completed, the aviation instrument runs the new application code. And the data packet is verified before each frame of data is burned. The upgrade computer displays the progress of the implementation of the burning and prompts after the successful upgrade.

[0054] If the aviation instrument and the upgrade device are not paired successfully, the aviation instrument runs the original application code.

[0055] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A method for upgrading and maintaining aviation instruments, characterized in that: The steps include: Design wireless communication modules on the aviation instruments and the upgraded equipment, and the aviation instruments and the upgraded equipment interact with each other through the wireless communication modules; Enter the wireless communication module loading interface by pressing a button on the aviation instrument, and pair the wireless communication module of the aviation instrument with the wireless communication module of the upgrade device; Select upgrade maintenance data on the upgrade device, transmit the upgrade maintenance data to the aviation instrument through the wireless block and burn it into the aviation instrument system.

2. The aviation instrument upgrade and maintenance method according to claim 1, characterized in that: The wireless communication modules of aviation instruments and upgraded equipment include wireless protocol chips, wireless driver chips and antennas; On the aviation instrument, the wireless protocol chip is communicatively connected to the processor of the aviation instrument, the wireless driver chip is electrically connected to the wireless protocol chip, and the antenna is electrically connected to the wireless driver chip; On the upgrade device, the wireless protocol chip is electrically connected to the upgrade computer via the USB interface communication protocol chip, the wireless driver chip is electrically connected to the wireless protocol chip, and the antenna is electrically connected to the wireless driver chip.

3. The aviation instrument upgrade and maintenance method according to claim 2, characterized in that: The aviation instrument includes a power supply control module, the power supply control module is connected to an input power supply from an aircraft to supply power to the aviation instrument, and the power supply control module converts the input power supply into a secondary power supply for supplying power to various components in the aviation instrument; On the aviation instrument, the antenna is electrically connected to the metal shell of the aviation instrument, and the grounding of the metal shell of the aviation instrument, the input power ground and the secondary power ground are independent of each other.

4. The aviation instrument upgrade and maintenance method according to claim 3, characterized in that: The wireless communication module of the aviation instrument also includes a power control circuit, which is electrically connected to the power control module. The processor is electrically connected to the wireless protocol chip and the wireless driver chip through the power control circuit, and the processor controls the power supply and power off of the wireless protocol chip and the wireless driver chip through the power control circuit.

5. The aviation instrument upgrade and maintenance method according to claim 1, characterized in that: After selecting the upgrade maintenance data on the upgrade device, the upgrade computer of the upgrade device verifies each data packet of the upgrade maintenance data; The wireless communication module of the aviation instrument verifies the received upgrade and maintenance data.

6. The aviation instrument upgrade and maintenance method according to claim 1, characterized in that: The wireless communication module of the aviation instrument receives the upgraded maintenance data for double backup.

7. The aviation instrument upgrade and maintenance method according to claim 1, characterized in that: After entering the wireless communication module loading interface by pressing a button on the aviation instrument, the pairing password is displayed on the wireless communication module loading interface. After the pairing password is input on the upgrade computer of the upgrade device, the wireless communication module of the aviation instrument and the wireless communication module of the upgrade device are successfully paired.

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