CN110954762B - Ground testing method - Google Patents
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- CN110954762B CN110954762B CN201911077261.2A CN201911077261A CN110954762B CN 110954762 B CN110954762 B CN 110954762B CN 201911077261 A CN201911077261 A CN 201911077261A CN 110954762 B CN110954762 B CN 110954762B
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- 238000012360 testing method Methods 0.000 title claims abstract description 259
- 238000010998 test method Methods 0.000 claims abstract description 22
- 238000012423 maintenance Methods 0.000 claims description 30
- 238000000034 method Methods 0.000 claims description 26
- 238000001514 detection method Methods 0.000 claims description 17
- 230000001629 suppression Effects 0.000 claims description 10
- 230000005764 inhibitory process Effects 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 5
- 238000003745 diagnosis Methods 0.000 claims description 5
- 230000002452 interceptive effect Effects 0.000 claims description 4
- 230000003111 delayed effect Effects 0.000 claims description 3
- 230000003993 interaction Effects 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 2
- 238000013461 design Methods 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/005—Testing of electric installations on transport means
- G01R31/008—Testing of electric installations on transport means on air- or spacecraft, railway rolling stock or sea-going vessels
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Abstract
The invention provides a ground test method of an aircraft, which comprises the following steps: accessing a data network of the civil aviation aircraft at a fixed access point; setting a test page capable of controlling all current ground tests; the testing system gradually releases system resources, executes a plurality of ground tests in parallel based on the released resources, and summarizes and returns the test states of all the tests to a test state page; and displaying the test state page through terminal equipment accessed to the civil aviation aircraft network. According to the invention, the ground test method can realize concurrent execution of ground test through a single network fixed access point on the computer; the ground test of the full-machine conflict can be automatically detected; under the condition that the tested system is in fault or is influenced by the cascade fault, the ground test result can be automatically given, and the condition that the accurate ground test result cannot be given due to the fault state of the tested system or the influence of an external fault is avoided.
Description
Technical Field
The invention relates to the field of design of avionic systems, in particular to a ground test method for a civil aviation aircraft.
Background
The conventional ground test method is shown in fig. 1, and its main steps are to start a ground test, display a precondition, detect and eliminate a suppression condition, perform the ground test, and complete a test display test state. The conventional ground test procedure has several problems: 1. the multitask can not be executed in parallel, but generally in the after-aviation maintenance, the functions such as self-detection of a plurality of systems need to be executed in parallel, and if the multitask is required to be executed concurrently, a data network needs to be accessed through a plurality of physical airborne network access points; 2. a single system cannot usually detect whether an external system is executing a ground test of interference, once the ground test of interference is executing, a target ground test is interrupted accidentally and an exact reason cannot be given, and a maintainer needs to judge the reason of test failure according to experience, so that inconvenience is brought to system maintenance work; 3. when the tested system fails or is affected by related system faults, namely external faults, and a test result cannot be given, an explicit conclusion of successful or failed test cannot be given, and maintenance personnel need to manually confirm according to experience.
To overcome problem 1, there are two existing solutions: firstly, a plurality of data access ports are arranged at different positions of the whole machine, such as the front, middle and rear machine bodies, so that maintenance personnel can use the portable maintenance equipment to access the network on the machine to execute ground test; secondly, local area network equipment is installed on the airplane, the local area network is started on the airplane after the airplane is in flight, the data network on the airplane is conveniently accessed to the area near the airplane, and the ground test is executed through the portable maintenance equipment. The two modes have the common characteristic that only one ground test is allowed to be executed at a time, and the mode for simultaneously executing ground tasks is to increase the number of access points, so that the implementation process is complicated, and the requirement of a user for quickly and parallelly executing multiple ground tests cannot be met.
Thus, there is a need to provide a ground testing method to at least partially address the above-mentioned problems.
Disclosure of Invention
The main object of the present invention is to provide a ground test method for civil aviation aircraft, said method being implemented by a test system, said test method comprising the following steps:
accessing a data network of the civil aviation aircraft at a single fixed access point;
setting a test page capable of controlling all current ground tests;
the test system gradually releases system resources, executes a plurality of tests in parallel based on the released resources, and returns the test states of all the tests to a test state page;
and displaying the test state page through terminal equipment accessed to the civil aviation aircraft network.
According to the scheme, the parallel execution of a plurality of tests can be realized through one fixed access point, the realization process is simple, and the requirement of a user for quickly and parallelly executing a plurality of ground tests can be met.
In one embodiment, the method further comprises: judging whether the test is interactive or not when any test is executed, and if not, displaying the state of the test as in progress in a test state page; if yes, continuing to judge whether to wait for input, and carrying out corresponding processing according to the judgment result.
In one embodiment, the method further comprises: in the step of judging whether to wait for input, if the judgment result is negative, displaying the test state as in progress in a test state page; if the judgment result is yes, the state of the test is displayed as unfinished in the test state page.
According to the two schemes, the corresponding control logic can be designed according to different ground test requirements, so that an operator can accurately observe the specific states of all ground tests.
In one embodiment, the method further comprises: the maintenance personnel respond to the uncompleted state test to carry out maintenance operation, whether the test is completed or not is judged after the maintenance operation, and if the judgment result is negative, the state of the test is displayed as in progress in a test state page; if the judgment result is yes, displaying the test state representing the completion of the test in the test state page.
According to the scheme, the operator can timely perform corresponding operation according to the state of the ground test, and the operation result can be fed back to the state of the ground test.
In one embodiment, the method further comprises a collision test total probing of a certain ground test before the ground test is started, the collision test total probing comprising: judging whether the ground test interferes with the ground test in progress, if so, delaying to start the ground test; if not, the ground test is directly started.
According to the scheme, an operator can not repeatedly start a ground test and waste maintenance time after the aircraft passes a station or is in a voyage for unknown reasons, excessive maintenance is avoided, and maintenance efficiency is improved.
In one embodiment, the collision test probing step further comprises: if yes, the ground test is started in a delayed mode, meanwhile estimated starting time is given, and the ground test is added into a candidate queue.
According to the scheme, the operator can restart the ground test at the estimated starting time, so that the time can be further saved, the meaningless repeated starting is omitted, and the maintenance efficiency is improved.
In one embodiment, the method further comprises: the method comprises the steps of setting up a full-aircraft ground test database and a full-aircraft digital signal interface database in advance, establishing a ground test model which is dynamically related to the ground test step and reflects data dependence information, and judging based on the full-aircraft ground test database, the full-aircraft digital signal interface database and the ground test model in the collision test detection step.
According to the scheme, the method for specifically realizing the detection step is provided, combines preset and real-time states, and is high in accuracy and easy to realize.
In one embodiment, the method further comprises: and pre-establishing a full-machine fault diagnosis database, acquiring a fault report in the ground test step under the condition that a test fault exists, and judging whether the ground test is passed or failed on the basis of the full-machine fault diagnosis relation database and the fault report.
According to the scheme, the result that the ground test passes or fails can be automatically given, and the condition that the accurate ground test result cannot be given due to the fault state of the tested system or the influence of an external fault is avoided.
In one embodiment, the method further comprises: a communication protocol containing correlation data of a ground test step and a fault which may be caused by the ground test is set in advance, and in the case where a test fault exists, it is determined in the ground test step whether the fault is caused by the ground test based on the communication protocol.
According to the scheme, the method for judging the fault type is provided, and the next operation can be performed in a targeted manner after the fault type is judged.
In one embodiment, the method further comprises the steps of displaying a precondition and determining whether a suppression condition exists before performing the ground test.
According to the present invention, the step of determining whether or not the suppression condition exists is provided, so that it is possible to avoid a test failure caused by a test being started blindly when the suppression condition exists, and after the suppression condition is determined, the operator can eliminate the suppression condition in time, thereby making it possible to advance the ground test to be performed smoothly.
The invention provides a ground test method, which can realize parallel execution of a plurality of tests through one fixed access point, has simple realization process and can meet the requirement of a user on quick parallel execution of a plurality of ground tests; the conflict test detection step is set, so that an operator can not repeatedly start the ground test and waste the maintenance time of the aircraft after passing the station or navigating due to unknown reasons, excessive maintenance is avoided, and the maintenance efficiency is improved; the result that the ground test passes or fails can be automatically given, and the condition that the accurate ground test result cannot be given due to the fault state of the tested system or the influence of an external fault is avoided.
Drawings
For a better understanding of the above and other objects, features, advantages and functions of the present invention, reference should be made to the preferred embodiments illustrated in the accompanying drawings. Like reference numerals in the drawings refer to like parts. It will be appreciated by persons skilled in the art that the drawings are intended to illustrate preferred embodiments of the invention without any limiting effect on the scope of the invention, and that the various components in the drawings are not drawn to scale.
FIG. 1 is a flow chart of a conventional ground test;
FIG. 2 is a flow chart illustrating the ground testing steps of a ground testing method according to a preferred embodiment of the present invention;
FIG. 3 is another schematic diagram of the ground testing step in this embodiment;
FIG. 4 is a schematic flow chart of a ground test method according to this embodiment;
FIG. 5 is a flowchart illustrating a portion of the collision test probing step of FIG. 4;
FIG. 6 is a schematic flow chart of a test result obtaining portion in this embodiment;
fig. 7 is a flowchart illustrating the general ground test method according to this embodiment.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings. What has been described herein is merely a preferred embodiment in accordance with the present invention and other ways of practicing the invention will occur to those skilled in the art and are within the scope of the invention.
Fig. 2 to 7 illustrate a ground test method according to a preferred embodiment of the present invention. The method is realized by a test system, and comprises the following steps: displaying the precondition; detecting an inhibition condition; and entering a ground test specific step. The ground test comprises the following specific steps: accessing a data network of the civil aviation aircraft at a single fixed access point; setting a test state page capable of controlling all current ground tests; the test system gradually releases system resources (for example, after finishing a ground test, one resource can be correspondingly released), and executes a plurality of tests in parallel based on the released resources, and returns the test states of all tests to a test state page; and displaying the test state page through terminal equipment accessed to the civil aviation aircraft network.
In the steps, the data network on the machine is accessed only at the fixed access point in the cockpit or at other positions through the optimized man-machine interface design and the combination of state machine control, and the multitask is controlled to execute the ground test in parallel. The operation logics of the operators for the ground test are consistent, and the operation logics are all started from the initial page and ended at the test state page, so that the overall operation control is facilitated; and all the ground test states are returned to the test state page, so that the terminal users of the network on all the access machines can see uniform and consistent ground test state information.
Further, referring to fig. 2, the method further includes: judging whether the test is interactive or not when any test is executed, if not, continuing the test and displaying the state of the test as in progress in a test state page; if yes, continuing to judge whether to wait for input. In the step of determining whether to wait for input, if the determination result is yes, the state of the test is displayed as pending (i.e., pending state in fig. 2) in the state page, and if the determination result is no, the state of the test is displayed as in progress in the test state page.
For the uncompleted state test, a maintenance worker can respond to the uncompleted state to carry out maintenance operation, can judge whether the test is completed or not after the maintenance operation, and if the judgment result is negative, the state of the test is displayed as in progress in a test state page; if the judgment result is yes, displaying the test state representing the completion of the test in the test state page.
As shown in fig. 2, when the maintenance personnel performs the maintenance operation, another new test may be started simultaneously and concurrently, and the new test may also become an unfinished test after being determined for a plurality of times, and then a new test of the next round may be started continuously while performing the maintenance operation, and so on.
In connection with fig. 3, it can be seen that the tests are performed in parallel, each of which may pause or fail during the test, or wait for the interaction to complete. Each test may have various test results such as fail, pass, exit, complete, and may be suppressed if a suppression condition is activated during the test.
Preferably, in order to avoid the blind start of the test in case of a conflict of the tests to be performed, the present embodiment also sets a conflict test detection step before performing the ground test. Specifically, after the ground test is started, the precondition is displayed and the detection suppression condition is detected, a collision test detection mechanism is added. In the collision test detection step, judging whether the ground test to be executed has interference with the ongoing ground test, if so, delaying to start the ground test and prompting an operator; if the judgment result is negative, the ground test is directly started. Preferably, if the result of the determination is yes, not only the start of the ground test is delayed, but also the estimated start time is given, and the ground test is assumed as the candidate queue.
The collision test detection step may have various implementation methods. Referring to fig. 5, it can be seen that one implementation method thereof includes: the method comprises the steps of setting up a full-machine ground test database and a full-machine digital signal interface database in advance, establishing a ground test model which is dynamically related to the ground test step and reflects data dependence information, and judging based on the full-machine ground test database, the full-machine digital signal interface database and the ground test model in the collision test detection step.
In another aspect of the present embodiment, referring to fig. 6, the ground test method can also accurately determine whether the ground test passed or failed. Specifically, the ground test method comprises the following steps: and pre-establishing a full-machine fault diagnosis relational database, acquiring a fault report in the ground test step under the condition that a test fault exists, and judging whether the ground test is passed or failed on the basis of the ground test model and the fault report.
The ground test method can determine whether the fault is a natural fault or a fault caused by ground test. Specifically, correlation data including a ground test step and a fault that may be caused by the ground test may be preset in the system. In the presence of a test fault, it is determined whether the fault is caused by ground testing or a natural fault, with communication protocol support.
It can be understood that, in the above steps, the ground test method according to this embodiment has the capability of automatically determining the ground test result in the fault state by optimizing the ground test flow, considering the fault state of the system and the fault state of the external system, and using the relevant fault as a condition for determining whether the ground test is successful. Therefore, the maintenance efficiency is improved, and the requirement on operators is reduced. Specifically, in the embodiment, the ground test method is based on the full-machine integrated design, the full-machine fault report is introduced as the only basis for judging the success and failure of the test, and based on the full-machine fault diagnosis relational database and the current fault report, the airborne maintenance system can automatically judge that the ground test passes or fails, thereby avoiding the situation that the accurate ground test result cannot be given due to the fault state of the tested system or the influence of an external fault. In addition, the ground test method of the present embodiment can also distinguish between a normal failure and a failure induced by the ground test.
The above ground test method is generally described below with reference to fig. 7.
After the system is started, a ground test state page is displayed, steps of newly building multiple ground tests, selecting target equipment and the like are carried out, and the process states of the steps can also return to the state page in real time. And then, displaying the ground test precondition, detecting the inhibition condition, prompting the inhibition condition and carrying out related operation if the inhibition condition is activated, continuously detecting the inhibition condition again until no inhibition condition is detected, and then starting collision test detection. If the conflict test exists, prompting an operator, retesting whether the interference exists after the preset time, and ending the step until the test result is negative. After collision detection is performed, it may be necessary to perform suppression condition detection again.
And then switching to the concrete testing step of ground testing. In the specific testing step, a plurality of ground testing steps can be executed in parallel, and each state in the test is returned to a testing state page for an operator to track the state in real time. As described above, a determination may be made in the process as to whether each ground test requires interaction, waits for input, etc. And finally, judging that the ground test passes or fails.
The ground test method can realize parallel execution of a plurality of tests through one fixed access point, has simple realization process, and can meet the requirement of a user on quick parallel execution of a plurality of ground tests; the conflict test detection step is set, so that an operator can not repeatedly start the ground test and waste the maintenance time of the aircraft after passing the station or navigating due to unknown reasons, excessive maintenance is avoided, and the maintenance efficiency is improved; the result that the ground test passes or fails can be automatically given, and the condition that the accurate ground test result cannot be given due to the fault state of the tested system or the influence of an external fault is avoided.
The foregoing description of various embodiments of the invention is provided for the purpose of illustration to one of ordinary skill in the relevant art. It is not intended that the invention be limited to a single disclosed embodiment. As mentioned above, many alternatives and modifications of the present invention will be apparent to those skilled in the art of the above teachings. Thus, while some alternative embodiments are specifically described, other embodiments will be apparent to, or relatively easily developed by, those of ordinary skill in the art. The present invention is intended to embrace all such alternatives, modifications and variances of the present invention described herein, as well as other embodiments that fall within the spirit and scope of the present invention as described above.
Claims (8)
1. A ground test method for an aircraft, characterized in that it comprises the following steps:
accessing a data network of the aircraft at a single fixed access point;
setting a test state page capable of controlling all current ground tests;
automatically judging whether the current aircraft state has execution conditions, including inhibition condition detection and conflict task detection;
identifying a ground automatic test task or an interactive calibration task, and actively guiding to complete a human-computer interaction process;
the test system gradually releases system resources, executes a plurality of tests in parallel based on the released resources, and returns the test states of all the tests to a test state page; and
the test status page is externally presented by a terminal device accessing the aircraft network,
wherein, the test method further comprises:
a full-machine fault diagnosis relational database is preset, and under the condition that a test fault exists, a fault report is obtained in the ground test step, so that the fault report is used as a unique basis to judge whether the ground test is passed or failed; and
a communication protocol containing correlation data relating to a ground test step and a fault that may be caused by the ground test is set in advance, and in the case where a test fault exists, it is determined in the ground test step whether the fault is caused by the ground test based on the communication protocol.
2. The ground testing method of claim 1, further comprising: judging whether the test is interactive or not when any test is executed, and if not, displaying the state of the test as in progress in a test state page; if yes, continuing to judge whether to wait for input, and carrying out corresponding processing according to the judgment result.
3. The ground testing method of claim 2, the method further comprising: in the step of judging whether to wait for input, if the judgment result is negative, displaying the test state as in progress in a test state page; if the judgment result is yes, the state of the test is displayed as unfinished in the test state page.
4. The ground testing method of claim 3, further comprising: the maintenance personnel respond to the uncompleted state test to carry out maintenance operation, whether the test is completed or not is judged after the maintenance operation, and if the judgment result is negative, the state of the test is displayed as in progress in a test state page; if the judgment result is yes, displaying the test state representing the completion of the test in the test state page.
5. The ground test method of claim 1, further comprising a total probing of the ground test for a conflict test prior to the start of the ground test, the total probing of the conflict test comprising: judging whether the ground test interferes with the ground test in progress or not, if so, delaying to start the ground test and prompting an operator; if the judgment result is negative, the ground test is directly started.
6. The ground testing method of claim 5, wherein the collision test probing step further comprises: if yes, the ground test is started in a delayed mode, meanwhile estimated starting time is given, and the ground test is added into a candidate queue.
7. The ground testing method of claim 5, further comprising: the method comprises the steps of setting up a full-aircraft ground test database and a full-aircraft digital signal interface database in advance, establishing a ground test model which is dynamically related to the ground test step and reflects data dependence information, and judging based on the full-aircraft ground test database, the full-aircraft digital signal interface database and the ground test model in the collision test detection step.
8. The ground testing method according to claim 1, further comprising the steps of displaying a precondition and determining whether a suppression condition exists before the ground test is performed.
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