Aircraft detection method and system based on embedded program uploading mode

Abstract

The invention provides an aircraft detection method and system based on an embedded program uploading mode, and the method comprises the steps: compiling a detection logic comprising a ground detection program and an uploading detection program, and uploading the uploading detection program to a RAM space of a main control computer for storage according to an uploading communication protocol; the ground detection program sends a corresponding instruction to the uploading detection program; the upload detection program operates detection logic after receiving the instruction, performs data interaction with each single machine of the aircraft and the ground detection equipment by controlling a data bus of the main control computer, generates detection data and downloads the detection data to the ground detection equipment; the ground detection program controls ground detection equipment, provides various detection excitation for aircraft detection, and receives downloaded detection data; after detection is finished, the main control computer of the aircraft is powered off, and a detection program is uploaded and automatically destroyed. According to the method, test related redundant codes in the master control program can be effectively reduced, the content of master control software is not changed in the detection process, the detection coverage rate is increased, and the flight risk is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of aircraft detection, and in particular to an aircraft detection method and system based on embedded program uploading. Background Art

[0002] The aircraft system is a complex electrical system that includes a variety of stand-alone products. In order to obtain the health status and performance of the aircraft, the aircraft needs to be tested. After acceptance inspection, each stand-alone product of the aircraft is delivered to the general assembly workshop, and the general assembly personnel assemble each stand-alone into an aircraft. The main control computer of the aircraft is installed with the main control software after delivery, and the main control software is fixed and burned in the FLASH of the main control computer. In order to ensure flight safety, the main control program minimizes test-related redundant codes, and the test software cannot change the content of the main control software during the test process. At the same time, the test items must ensure the test coverage.

[0003] Patent document JP2019074284 discloses a method and device for distributing software of loadable components to an aircraft, a software aircraft component management device, including a library, a receiving module, a proxy server, an onboard electronic distribution system on an aircraft, and a portable software maintenance tool. The library on the ground data processing system stores and manages software aircraft components for the aircraft. The receiving module is capable of receiving software aircraft components from suppliers and sending software aircraft components to the library. The proxy server communicates with the library and is capable of distributing software to multiple aircraft clients. The onboard electronic distribution system is an aircraft client and is capable of receiving software aircraft components for an aircraft from the library through a proxy server. A computer-implemented method is used to transfer information with an aircraft. A connection is established between an onboard electronic distribution system executed in an aircraft data processing system in an aircraft and a ground component. The ground component can be located in a ground network in a software application such as a software maintenance tool or a proxy server application.

[0004] However, patent document JP2019074284 cannot ensure that the main control program minimizes test-related redundant code and detection coverage. Summary of the invention

[0005] In view of the defects in the prior art, the object of the present invention is to provide an aircraft detection method and system based on embedded program uploading.

[0006] According to the present invention, an aircraft detection method based on embedded program uploading method includes:

[0007] Step S1: compile the detection logic including the ground detection program and the upload detection program, and upload the upload monitoring program to the RAM space of the main control computer for storage according to the upload communication protocol;

[0008] Step S2: the ground detection program sends corresponding instructions to the upload detection program;

[0009] Step S3: After receiving the command, the uploaded detection program runs the detection logic, interacts with each aircraft unit and the ground detection equipment through the control main computer data bus, generates detection data and transmits it to the ground detection equipment;

[0010] Step S4: The ground detection program controls the ground detection equipment, provides a variety of detection stimuli for the aircraft detection, and receives the downlink detection data;

[0011] Step S5: After the detection is completed, the main control computer of the aircraft is powered off and the uploaded detection program is automatically destroyed.

[0012] Preferably, the step S1 comprises:

[0013] Step S1.1: The main control computer is powered on, and the ground detection program sends a handshake communication frame to the main control program according to the upload communication protocol. The handshake communication frame contains the starting storage address of the upload program in the RAM;

[0014] Step S1.2: After the handshake is successful, the ground detection program sends an upload data frame to the main control program according to the upload communication protocol. The valid data in the data is the uploaded BIN file data. The main control program receives the valid data and puts the valid data into the main control computer RAM frame by frame in sequence;

[0015] Step S1.3: After the upload is successful, the ground detection program sends a program running frame to the main control program according to the upload communication protocol. The running frame contains the starting address of the uploaded program.

[0016] Preferably, the instructions include detection item instructions, data return instructions, and status query instructions;

[0017] The uploaded detection program is stored and executed in the RAM address space specified by the host computer, and shares the RAM space of the host computer with the host program.

[0018] Preferably, before the main control computer is powered on, the RAM space size of the main control computer and the RAM space occupied by the main control program are analyzed, and the dedicated RAM address space for the upload detection program is pre-allocated.

[0019] Preferably, it also includes: defining the main control program global variables and function address aliases according to the main control program MAP table, and the upload detection program accesses the main control program variables and functions by declaring the main control program global variables and function address names using the global address index method.

[0020] According to the present invention, an aircraft detection system based on an embedded program upload method is provided, comprising:

[0021] Module M1: Write the detection logic including the ground detection program and the upload detection program, and upload the upload monitoring program to the RAM space of the main control computer for storage according to the upload communication protocol;

[0022] Module M2: The ground detection program sends corresponding instructions to the upload detection program;

[0023] Module M3: The upload detection program runs the detection logic after receiving the command, interacts with the data of each aircraft and the ground detection equipment by controlling the data bus of the main control computer, generates detection data and transmits it to the ground detection equipment;

[0024] Module M4: The ground detection program controls the ground detection equipment, provides a variety of detection stimuli for aircraft detection, and receives the downlink detection data;

[0025] Module M5: After the test is completed, the aircraft's main control computer is powered off and the uploaded test program is automatically destroyed.

[0026] Preferably, the module M1 comprises:

[0027] Module M1.1: The main control computer is powered on, and the ground detection program sends a handshake communication frame to the main control program according to the upload communication protocol. The handshake communication frame contains the starting storage address of the upload program in RAM;

[0028] Module M1.2: After the handshake is successful, the ground detection program sends the upload data frame to the main control program according to the upload communication protocol. The valid data in the data is the uploaded BIN file data. The main control program receives the valid data and puts the valid data into the main control computer RAM frame by frame in sequence;

[0029] Module M1.3: After the upload is successful, the ground detection program sends a program running frame to the main control program according to the upload communication protocol. The running frame contains the starting address of the uploaded program.

[0030] Preferably, the instructions include detection item instructions, data return instructions, and status query instructions;

[0031] The uploaded detection program is stored and executed in the RAM address space specified by the host computer, and shares the RAM space of the host computer with the host program.

[0032] Preferably, before the main control computer is powered on, the RAM space size of the main control computer and the RAM space occupied by the main control program are analyzed, and the dedicated RAM address space for the upload detection program is pre-allocated.

[0033] Preferably, it also includes: defining the main control program global variables and function address aliases according to the main control program MAP table, and the upload detection program accesses the main control program variables and functions by declaring the main control program global variables and function address names using the global address index method.

[0034] Compared with the prior art, the present invention has the following beneficial effects:

[0035] The present invention can effectively reduce test-related redundant codes in the main control program, does not change the main control software content during the detection process, improves the detection coverage and reduces the flight risk. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings:

[0037] Figure 1 This is a block diagram of the aircraft detection system of the present invention;

[0038] Figure 2 It is a schematic diagram of the uploading process flow in the present invention;

[0039] Figure 3 It is a schematic diagram of the upload detection process in the present invention;

[0040] Figure 4 It is a schematic diagram of the ground detection process in the present invention. DETAILED DESCRIPTION

[0041] The present invention is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those of ordinary skill in the art, several changes and improvements can also be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0042] The present invention completes the aircraft detection by cooperating with the detection equipment and the detection program. The detection program is divided into an upload detection program and a ground detection program. The upload detection program is uploaded to the aircraft main control computer RAM through the ground detection program for operation. During the detection process, the upload detection program exchanges data with the main control program through address mapping, communicates with each single aircraft and the ground detection equipment through the control computer bus, and the ground detection equipment provides the aircraft with the required excitation signal. After the detection is completed, the aircraft main control computer is powered off, and the upload detection program is automatically destroyed.

[0043] Embodiment 1

[0044] According to the present invention, an aircraft detection method based on embedded program uploading is provided, such as Figure 1As shown, the detection method includes two parts: a ground detection program and an embedded upload detection program. The ground detection program runs in the main control computer of the ground detection equipment, and the upload detection program runs in the main control computer of the aircraft. The ground detection equipment and the aircraft cooperate to complete the aircraft whole machine detection. The specific steps are as follows:

[0045] Step S1: Write the ground detection program and upload the detection logic of the detection program, and upload the monitoring program to the RAM space of the main control computer for storage according to the upload communication protocol. The step S1 includes:

[0046] Step S1.1: The main control computer is powered on, and the ground detection program sends a handshake communication frame to the main control program according to the upload communication protocol. The handshake communication frame contains the starting storage address of the upload program in the RAM;

[0047] Step S1.2: After the handshake is successful, the ground detection program sends an upload data frame to the main control program according to the upload communication protocol. The valid data in the data is the uploaded BIN file data. The main control program receives the valid data and puts the valid data into the main control computer RAM frame by frame in sequence;

[0048] Step S1.3: After the upload is successful, the ground detection program sends a program running frame to the main control program according to the upload communication protocol. The running frame contains the starting address of the uploaded program.

[0049] Step S2: The ground detection program sends corresponding instructions to the upload detection program. The instructions include detection item instructions, data return instructions, and status query instructions. The ground detection program uploads the upload detection program BIN file to the RAM address space specified by the host computer according to the upload communication protocol for storage and operation.

[0050] Step S3: After receiving the command, the upload detection program runs the detection logic, interacts with each aircraft unit and ground detection equipment through the control main control computer data bus, generates detection data and transmits it to the ground detection equipment. During the detection process, the upload detection program and the main control program exchange data through address mapping.

[0051] Step S4: The ground detection program controls the ground detection equipment, provides a variety of detection excitations to the aircraft detection, and receives the downlink detection data. The ground detection equipment provides the required excitation signal to the aircraft. The ground detection program completes the diagnosis of the detection data based on the detection data and gives the detection diagnosis results.

[0052] Step S5: After the detection is completed, the main control computer of the aircraft is powered off and the uploaded detection program is automatically destroyed.

[0053] The upload detection program is not solidified in the non-volatile memory such as the FLASH of the main control computer. Before the main control computer is powered on, the RAM space of the upload program is pre-allocated by analyzing the RAM space size of the main control computer and the RAM space occupied by the main control program. Specifically, the upload detection software memory allocation script file is written in combination with the RAM space size of the aircraft main control computer and the memory occupancy in the main control program MAP table to avoid the address space occupied by the main control program RAM and pre-allocate the dedicated RAM address space occupied by the upload detection program. After the main control computer is powered on, the upload detection program runs in the RAM space of the main control computer during the detection process, and shares the RAM space of the main control computer with the main control program. It disappears automatically after the main computer is powered off.

[0054] According to the MAP table of the master control program, define the aliases of the master control program global variables and function addresses. The upload detection program exchanges data with the master control program through address indexing. In the upload detection program project, write the master control program global variable and function address declaration header file and define the alias. After the upload detection program is running, read and access the master control program global variables and call the master control program functions through the alias address index method. After the access and call are completed, return to the upload detection program to run. In other words, the upload detection program declares the master control program global variables and function address names, and uses the global address index method to access the master control program variables and functions.

[0055] Aircraft detection technology based on embedded program uploading can reduce redundant codes related to main control program testing and does not change the main control program content during the detection process. The uploaded detection program is automatically destroyed after the detection is completed, which can greatly improve the flight safety of the aircraft and increase the detection coverage.

[0056] Further, the present invention is described in detail with reference to the accompanying drawings and embodiments as follows:

[0057] like Figure 1 As shown, it is a block diagram of an aircraft detection system based on embedded program upload provided by the present invention, and the detection program includes an upload detection program and a ground detection program. The aircraft includes a main control computer, several stand-alone computers, etc. The main control program is solidified in the Flash of the main control computer. After the main control computer is powered on, the main control program is moved from the Flash to the RAM1 of the main control computer for operation. The main control program communicates with each stand-alone computer of the aircraft by controlling the main control computer bus, and the upload detection is uploaded to the RAM1 of the main control computer through the bus for operation; the ground detection equipment includes a ground main control computer, several excitation devices, cables, etc. The ground detection program runs in the ground main control computer, controls the ground detection equipment to communicate with the aircraft, provides excitation to the aircraft, and collects feedback from the aircraft.

[0058] like Figure 2As shown, it is the upload block diagram of the upload detection program described in the present invention. The upload process is divided into three parts, including upload handshake, BIN file upload, and operation handshake. First, the ground detection program sends the upload handshake frame data to the main control program according to the upload communication protocol. The frame data contains the information such as the RAM starting address of the upload detection program, the total number of uploaded frames, etc. The main control program receives the handshake frame data, verifies and unpacks it, sends a handshake information reply, and the ground detection program receives and verifies the reply information; after the verification is passed, the ground detection program sends the BIN file data frame by frame in sequence according to the upload communication protocol. The main control program receives the data and verifies the data. After the verification is passed, the frame header and the check are removed, and the useful data are extracted. The data is stored in RAM2 in sequence starting from the RAM starting address. At the same time, the received data is packaged and sent to the ground. After receiving the data, the ground equipment verifies the data. After the verification is passed, the next frame of data is sent until all the data is sent; after all the verifications are passed, the ground detection program sends the running instruction frame data to the main control program according to the upload communication protocol. The data frame contains the running starting address of the upload program. The integrated control software receives the running instruction frame data, verifies and unpacks it. After the verification is passed, the main control program sends a reply information to the ground. At the same time, the main control program controls the program running pointer, points the running pointer to the running starting address of the upload program, and the upload program starts to run.

[0059] like Figure 3 and Figure 4 The figure shows the operation block diagram of the upload detection program and the ground detection program of the present invention. After the upload detection program is uploaded and operated, the upload detection program communicates with each single machine of the aircraft through the data bus loop and waits for the ground detection instruction. When the ground detection program sends the detection instruction, the ground detection program runs the control logic, controls the ground excitation device to provide dynamic excitation to the aircraft, and the upload detection program runs the detection logic according to the detection instruction, accesses the main control program variables and calls the main control program functions through the address access method, and stores and judges the detection data at the same time; when the ground detection program sends the data return instruction, the upload detection program sends the detection data to the ground device, and the ground detection program receives and stores the detection data; after all the detection items are detected, the ground detection program controls the power excitation to power off the aircraft, at this time, the aircraft main control computer is powered off, and the upload detection program is automatically destroyed.

[0060] The detection is implemented as follows: first, based on the RAM space occupied by the main control computer and the RAM space occupied by the main control program, the RAM space for the upload detection program is pre-allocated to avoid the RAM occupied address of the main control program, and the memory allocation script file of the upload detection software is written; then, according to the main control program MAP table, the main control program global variables and function address aliases are defined; then, the upload detection program and the ground detection program detection logic are written, and the upload detection program uses the address index method to access the main control program variables and call the main control program functions; then, the ground detection program controls the power excitation to apply power excitation to the aircraft, the main control computer is powered on, and the ground detection program uploads the upload detection program BIN file to the main control program according to the upload communication protocol; then, after the upload detection program runs successfully, the ground detection program sends detection instructions or data return instructions to the upload detection program according to the user input, and at the same time controls the ground excitation device to apply dynamic excitation signals to the aircraft; finally, the detection is completed, the ground detection equipment disconnects all excitation signals, the aircraft main control computer is powered off, and the upload detection program is automatically destroyed.

[0061] Embodiment 2

[0062] The present invention also provides an aircraft detection system based on an embedded program uploading method. The aircraft detection system based on an embedded program uploading method can be implemented by executing the process steps of the aircraft detection method based on the embedded program uploading method, that is, those skilled in the art can understand the aircraft detection method based on the embedded program uploading method as a preferred implementation of the aircraft detection system based on the embedded program uploading method.

[0063] According to the present invention, an aircraft detection system based on an embedded program upload method is provided, comprising:

[0064] Module M1: Write the detection logic including the ground detection program and the upload detection program, and upload the upload monitoring program to the RAM space of the main control computer for storage according to the upload communication protocol. The module M1 includes: Module M1.1: The main control computer is powered on, and the ground detection program sends a handshake communication frame to the main control program according to the upload communication protocol, and the handshake communication frame contains the starting storage address of the upload program in the RAM. Module M1.2: After the handshake is successful, the ground detection program sends an upload data frame to the main control program according to the upload communication protocol. The valid data in the data is the uploaded BIN file data. The main control program receives the valid data and puts the valid data into the main control computer RAM frame by frame in sequence. Module M1.3: After the upload is successful, the ground detection program sends a program running frame to the main control program according to the upload communication protocol, and the running frame contains the starting address of the upload program. The upload detection program is stored and run in the RAM address space specified by the main control computer, and shares the main control computer RAM space with the main control program.

[0065] Module M2: The ground detection program sends corresponding instructions to the upload detection program, including detection item instructions, data return instructions, and status query instructions.

[0066] Module M3: The upload detection program runs the detection logic after receiving the instructions, interacts with the data of each aircraft unit and the ground detection equipment by controlling the main control computer data bus, generates detection data and transmits it to the ground detection equipment.

[0067] Module M4: The ground detection program controls the ground detection equipment, provides a variety of detection stimuli for aircraft detection, and receives downlink detection data.

[0068] Module M5: After the test is completed, the aircraft's main control computer is powered off and the uploaded test program is automatically destroyed.

[0069] Before the main control computer is powered on, the RAM space occupied by the main control computer and the main control program is analyzed to pre-allocate the dedicated RAM address space for the upload detection program. It also includes: defining the main control program global variables and function address aliases according to the main control program MAP table, and the upload detection program accesses the main control program variables and functions by declaring the main control program global variables and function address names and using the global address index method.

[0070] Those skilled in the art know that, in addition to realizing the system and its various devices, modules, and units provided by the present invention in a purely computer-readable program code, it is entirely possible to realize the same functions in the form of logic gates, switches, application-specific integrated circuits, programmable logic controllers, and embedded microcontrollers by logically programming the method steps. Therefore, the system and its various devices, modules, and units provided by the present invention can be considered as a hardware component, and the devices, modules, and units included therein for realizing various functions can also be regarded as structures within the hardware component; the devices, modules, and units for realizing various functions can also be regarded as both software modules for realizing the method and structures within the hardware component.

[0071] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

1. An aircraft detection method based on embedded program uploading, characterized in that: include: Step S1: compile the detection logic including the ground detection program and the upload detection program, and upload the upload monitoring program to the RAM space of the main control computer for storage according to the upload communication protocol; Step S2: the ground detection program sends corresponding instructions to the upload detection program; Step S3: After receiving the command, the uploaded detection program runs the detection logic, interacts with each aircraft unit and the ground detection equipment through the control main computer data bus, generates detection data and transmits it to the ground detection equipment; Step S4: The ground detection program controls the ground detection equipment, provides a variety of detection stimuli for the aircraft detection, and receives the downlink detection data; Step S5: After the detection is completed, the main control computer of the aircraft is powered off and the uploaded detection program is automatically destroyed.

2. The aircraft detection method based on embedded program uploading method according to claim 1 is characterized in that: The step S1 comprises: Step S1.1: The main control computer is powered on, and the ground detection program sends a handshake communication frame to the main control program according to the upload communication protocol. The handshake communication frame contains the starting storage address of the upload program in the RAM; Step S1.2: After the handshake is successful, the ground detection program sends an upload data frame to the main control program according to the upload communication protocol. The valid data in the data is the uploaded BIN file data. The main control program receives the valid data and puts the valid data into the main control computer RAM frame by frame in sequence; Step S1.3: After the upload is successful, the ground detection program sends a program running frame to the main control program according to the upload communication protocol. The running frame contains the starting address of the uploaded program.

3. The aircraft detection method based on embedded program uploading method according to claim 1 is characterized in that: The instructions include detection item instructions, data return instructions, and status query instructions; The uploaded detection program is stored and executed in the RAM address space specified by the host computer, and shares the RAM space of the host computer with the host program.

4. The aircraft detection method based on embedded program uploading method according to claim 3 is characterized in that: Before the main control computer is powered on, the RAM space size of the main control computer and the RAM space occupied by the main control program are analyzed, and the RAM dedicated occupied address space of the upload detection program is pre-allocated.

5. The aircraft detection method based on embedded program uploading method according to claim 1 is characterized in that: Also includes: According to the master control program MAP table, define the master control program global variables and function address aliases, upload the detection program by declaring the master control program global variables and function address names, and use the global address index method to access the master control program variables and functions.

6. An aircraft detection system based on embedded program uploading method, characterized in that: include: Module M1: Write the detection logic including the ground detection program and the upload detection program, and upload the upload monitoring program to the RAM space of the main control computer for storage according to the upload communication protocol; Module M2: The ground detection program sends corresponding instructions to the upload detection program; Module M3: The upload detection program runs the detection logic after receiving the command, interacts with the data of each aircraft and the ground detection equipment by controlling the data bus of the main control computer, generates detection data and transmits it to the ground detection equipment; Module M4: The ground detection program controls the ground detection equipment, provides a variety of detection stimuli for aircraft detection, and receives the downlink detection data; Module M5: After the test is completed, the aircraft's main control computer is powered off and the uploaded test program is automatically destroyed.

7. The aircraft detection system based on embedded program uploading method according to claim 6 is characterized in that: The module M1 comprises: Module M1.1: The main control computer is powered on, and the ground detection program sends a handshake communication frame to the main control program according to the upload communication protocol. The handshake communication frame contains the starting storage address of the upload program in RAM; Module M1.2: After the handshake is successful, the ground detection program sends the upload data frame to the main control program according to the upload communication protocol. The valid data in the data is the uploaded BIN file data. The main control program receives the valid data and puts the valid data into the main control computer RAM frame by frame in sequence; Module M1.3: After the upload is successful, the ground detection program sends a program running frame to the main control program according to the upload communication protocol. The running frame contains the starting address of the uploaded program.

8. The aircraft detection system based on embedded program uploading method according to claim 6 is characterized in that: The instructions include detection item instructions, data return instructions, and status query instructions; The uploaded detection program is stored and executed in the RAM address space specified by the host computer, and shares the RAM space of the host computer with the host program.

9. The aircraft detection system based on embedded program uploading method according to claim 8, characterized in that: Before the main control computer is powered on, the RAM space size of the main control computer and the RAM space occupied by the main control program are analyzed, and the RAM dedicated occupied address space of the upload detection program is pre-allocated.

10. The aircraft detection system based on embedded program uploading method according to claim 6, characterized in that: Also includes: According to the master control program MAP table, define the master control program global variables and function address aliases, upload the detection program by declaring the master control program global variables and function address names, and use the global address index method to access the master control program variables and functions.

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