CN-116244934-B - Failure analysis method and device for product functions, storage medium and electronic equipment

CN116244934BCN 116244934 BCN116244934 BCN 116244934BCN-116244934-B

Abstract

The application provides a failure analysis method, a device, a storage medium and electronic equipment for product functions, which comprises the steps of dividing a product into a plurality of functional modules according to different functions, dividing the product into a plurality of action state units according to time sequences for executing different actions, obtaining working state units of each functional module of the product under each action state through combination, setting a plurality of risk categories, determining the working state units with risks in all the working state units as working state risk units, determining various output states of each working state risk unit, setting a plurality of input factors for each working state risk unit, determining the action of each input factor on the working state risk unit on the output state, determining a processing mechanism, design parameters and influence factors which influence the output state when the working state risk unit is executed, and analyzing abnormal output by utilizing the processing mechanism, the design parameters, the influence factors and the input factors.

Inventors

ZHU YAO
ZHANG SHENGPENG
ZHANG ANQI

Assignees

航天科工防御技术研究试验中心

Dates

Publication Date: 20260508
Application Date: 20230128

Claims (9)

1. A method for failure analysis of a product function, comprising: According to the actions executed by the product and the functions realized, determining the working state units corresponding to the functions when each action is executed; setting a plurality of risk categories, and determining the working state units with any risk category in all the working state units as working state risk units; Determining various output states of each working state risk unit, wherein the output states comprise normal output for outputting normal functions, nonfunctional output for outputting nonfunctional results and abnormal output for disabling the normal functions; determining at least one input factor born by each working state risk unit, and analyzing the reason of failure of each working state risk unit according to the effect of each input factor on each working state risk unit; The setting a plurality of risk categories includes: Setting a working state unit with a function or action failure in a history working process as a history high risk; setting a working state unit containing a function or action of a completely new design which is not verified as a new design risk; and setting the working state unit with the working environment of the functional module changed, the working state unit with the working environment changed by executing the action and the working state unit with the working environment changed by composing hardware as change risks.
2. The method according to claim 1, wherein the determining the operation state unit corresponding to each function when each action is performed according to the action performed by the product and the implemented function comprises: dividing a product into a plurality of functional modules according to different functions; dividing the product into a plurality of different action state units according to the time sequence of executing different actions; And combining each functional module with each action state unit to obtain the working state unit of each functional module of the product when executing each action state unit.
3. The method of claim 1, wherein analyzing the cause of each of the operational state risk units failure based on the effect of the respective input factors on each of the operational state risk units comprises: determining the effect of each input factor on the output state of the working state risk unit; Determining a processing mechanism, design parameters and influence factors which influence the output state when the working state risk unit is executed; and analyzing the abnormal output of the working state risk unit by using the processing mechanism, the design parameters, the influence factors and the input factors.
4. A method according to claim 3, wherein said determining the effect of each input factor on the output status of the operational status risk unit comprises: And determining the action of each input factor on each working state risk unit as one of long-term action, short-term action and no action according to the time length affecting the action or the function.
5. A method according to claim 3, wherein said determining processing mechanisms, design parameters and influencing factors that influence said output state when executing the working state risk unit comprises: determining a process that the working state risk unit realizes a corresponding function by executing a corresponding action; determining parameters set by the working state risk unit for executing the processing mechanism; and determining factors influencing the working state risk units to realize corresponding functions by executing corresponding actions.
6. A method according to claim 3, wherein said analyzing said abnormal output occurring in the operational state risk unit using said processing mechanism, design parameters, impact factors and input factors comprises: for each abnormal output of each working state risk unit, at least one of an input factor, a processing mechanism, a design parameter and an influence factor corresponding to the abnormal output is taken as a cause of failure of the corresponding working state risk unit.
7. The failure analysis device for the product function is characterized by comprising a product action and function analysis module, a risk identification module, an output analysis module and a failure analysis module; The product action and function analysis module is configured to determine a working state unit corresponding to each function when each action is executed according to the action executed by the product and the realized function; The risk identification module is configured to set a plurality of risk categories, and determine a working state unit with any risk category in all working state units as a working state risk unit; the output analysis module is configured to determine various output states of each working state risk unit, wherein the output states comprise normal output for outputting normal functions, nonfunctional output for outputting nonfunctional results and abnormal output for normal function failure; The failure analysis module is configured to determine at least one input factor born by each working state risk unit, and analyze the cause of the failure of each working state risk unit according to the effect of each input factor on each working state risk unit; the risk identification module comprises: A history high risk setting unit configured to set, as a history high risk, an operation state unit in which a failure of a function or action occurs during a history operation; a new design risk setting unit configured to set an operation state unit containing a function or action of a brand new design that has not been verified as a new design risk; The change risk setting unit is configured to set a change risk to both a working state unit in which the working environment of the functional module is changed, a working state unit in which the execution of the action is changed, and a working state unit in which the constituent hardware is changed.
8. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable by the processor, wherein the processor implements the method of any one of claims 1 to 6 when the computer program is executed.
9. A non-transitory computer readable storage medium storing computer instructions for causing a computer to perform the method of any one of claims 1 to 6.

Description

Failure analysis method and device for product functions, storage medium and electronic equipment Technical Field The embodiment of the application relates to the technical field of quality management, in particular to a failure analysis method and device for product functions, a storage medium and electronic equipment. Background In the related analysis modes of the functional failure risk of the product, the relative macroscopic guiding modes are often not tightly fused with the design details of the product, and the functional failure risk is easy to be disjointed with the design details of the product in the practical application process, for example, the functional failure risk is disjointed with the implementation function or the execution action of the product in the analysis process, so that the analysis of failure causes is incomplete, and the risk identification is insufficient. It can be seen that in the related failure analysis method, only some conventional or surface problems are identified, so that it is difficult to identify potential failure risks in product details, and it is difficult to effectively manage the quality of the product according to the potential failure risks. Based on this, a solution is needed that can avoid enabling failure risk analysis of product details. Disclosure of Invention In view of the above, the present application aims to provide a failure analysis method, a device, a storage medium and an electronic apparatus for product functions. Based on the above object, the present application provides a failure analysis method for product functions, comprising: According to the actions executed by the product and the functions realized, determining the working state units corresponding to the functions when each action is executed; setting a plurality of risk categories, and determining the working state units with any risk category in all the working state units as working state risk units; Determining various output states of each working state risk unit, wherein the output states comprise normal output for outputting normal functions, nonfunctional output for outputting nonfunctional results and abnormal output for disabling the normal functions; And determining at least one input factor born by each working state risk unit, and analyzing the reason of failure of each working state risk unit according to the effect of each input factor on each working state risk unit. Further, according to the actions executed by the product and the functions implemented, determining the working state units corresponding to the functions when executing each action, including: dividing a product into a plurality of functional modules according to different functions; dividing the product into a plurality of different action state units according to the time sequence of executing different actions; And combining each functional module with each action state unit to obtain the working state unit of each functional module of the product when executing each action state unit. Further, setting a plurality of risk categories, including: Setting a working state unit with a function or action failure in a history working process as a history high risk; setting a working state unit containing a function or action of a completely new design which is not verified as a new design risk; and setting the working state unit with the working environment of the functional module changed, the working state unit with the action changed and the working state unit with the hardware changed as change risks. Further, according to the effect of each input factor on each working state risk unit, analyzing the reason of failure of each working state risk unit, including: determining the effect of each input factor on the output state of the working state risk unit; Determining a processing mechanism, design parameters and influence factors which influence the output state when the working state risk unit is executed; and analyzing the abnormal output of the working state risk unit by using the processing mechanism, the design parameters, the influence factors and the input factors. Further, determining the effect of each input factor on the output state of the operating state risk unit includes: And determining the action of each input factor on each working state risk unit as one of long-term action, short-term action and no action according to the time length affecting the action or the function. Further, determining a processing mechanism, design parameters and influence factors that influence the output state when executing the working state risk unit, including: determining a process that the working state risk unit realizes a corresponding function by executing a corresponding action; determining parameters set by the working state risk unit for executing the processing mechanism; and determining factors influencing the working state risk units to realize corresponding functions by executing corresponding