CN114298337A - Hardware system internal subsystem failure state evaluation method, equipment and medium - Google Patents

Hardware system internal subsystem failure state evaluation method, equipment and medium Download PDF

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CN114298337A
CN114298337A CN202111553502.3A CN202111553502A CN114298337A CN 114298337 A CN114298337 A CN 114298337A CN 202111553502 A CN202111553502 A CN 202111553502A CN 114298337 A CN114298337 A CN 114298337A
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subsystem
state
current
mode
determining
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赵静毅
于银刚
孟庆宇
王东辉
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Traffic Control Technology TCT Co Ltd
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Traffic Control Technology TCT Co Ltd
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Abstract

The application provides a method, equipment and medium for evaluating failure states of subsystems in a hardware system, wherein the method comprises the following steps: determining initial parameters of a subsystem in a current working mode, wherein the current working mode is a standby mode or an in-service mode; determining a state threshold value of the current mode according to the initial parameters; and evaluating whether the subsystem is in a failure state or not according to the current parameters and the state threshold value of the subsystem, if so, changing the current mode into a standby mode when the current mode is in an active mode, and evaluating whether the subsystem after the mode is changed is in the failure state or not. According to the scheme, the current condition of the subsystem and the initial condition of the subsystem are considered, the evaluation accuracy can be effectively improved, the high-reliability operation of a rail transit hardware system is ensured, and the maintenance cost is further saved. In addition, the failure state evaluation is carried out based on the changed mode, and different evaluation schemes are adopted in different modes of the subsystem.

Description

Hardware system internal subsystem failure state evaluation method, equipment and medium
Technical Field
The application relates to the technical field of rail transit, in particular to a method, equipment and medium for evaluating failure states of subsystems in a hardware system.
Background
At present, each subsystem in a rail transit hardware system usually has a redundant configuration, and when a subsystem in service (for convenience of description, referred to as "in-service" for short in this application) in the rail transit hardware system is abnormal, a corresponding redundant subsystem is immediately switched from a standby mode to an in-service mode, so as to ensure normal operation of the rail transit hardware system.
However, under the influence of external severe environment (such as temperature, humidity and vibration) stress and load stress without interruption, the subsystems (including the active subsystem and the standby subsystem) inside the rail transit hardware system inevitably degrade and then fail, and the normal operation of the whole rail transit system is affected.
Therefore, how to effectively evaluate whether the subsystem inside the rail transit hardware system fails becomes a problem to be solved urgently.
Disclosure of Invention
In order to solve one of the technical defects, the application provides a method, equipment and medium for evaluating the failure state of a subsystem in a hardware system.
In a first aspect of the application, a method for evaluating a failure state of a subsystem inside a rail transit hardware system is provided, and the method includes:
determining initial parameters of a subsystem in a current working mode, wherein the current working mode is a standby mode or an in-service mode;
determining a state threshold of the current mode according to the initial parameters;
evaluating whether the subsystem is in a failure state according to the current parameters and the state threshold value of the subsystem;
if the subsystem is in the failure state, when the current mode is in the active mode, the current mode of the subsystem is changed into the standby mode, initial parameters of the subsystem after the mode is changed in the standby mode are determined, a state threshold value of the standby mode is determined according to the initial parameters in the standby mode, and whether the subsystem after the mode is changed is in the failure state or not is evaluated according to the current parameters of the subsystem after the mode is changed and the state threshold value of the standby mode.
Optionally, the determining initial parameters of the subsystem in the current operating mode includes:
and when the subsystem enters the current working mode and works for a preset time period, acquiring the parameters of the subsystem, and taking the parameters as initial parameters.
Optionally, the determining the state threshold of the current mode according to the initial parameter includes:
determining a health state threshold value as a product of a preset health coefficient and the initial parameter;
determining a sub-health state threshold as a product of a preset sub-health coefficient and the initial parameter;
determining a fault state threshold value as a product of a preset fault coefficient and the initial parameter;
and determining the failure state threshold value as the product of a preset failure coefficient and the initial parameter.
Optionally, the evaluating whether the subsystem is in a failure state according to the current parameter and the state threshold of the subsystem includes:
determining the current state of the subsystem according to the current parameters and the state threshold of the subsystem, wherein the current state is one of the following states: health status, sub-health status, fault status, failure status;
and if the current state is the failure state, determining that the subsystem is in the failure state.
Optionally, the determining the current state of the subsystem according to the current parameter of the subsystem and the state threshold includes:
if the current parameter of the subsystem is greater than the health state threshold and not greater than the sub-health state threshold, determining that the current state of the subsystem is a health state;
if the current parameter of the subsystem is greater than the sub-health state threshold and not greater than the fault state threshold, determining that the current state of the subsystem is a sub-health state;
if the current parameter of the subsystem is larger than the fault state threshold value and not larger than the failure state threshold value, determining that the current state of the subsystem is a fault state;
and if the current parameter of the subsystem is larger than the failure state threshold value, determining that the current state of the subsystem is the failure state.
Optionally, after the changing the current mode of the subsystem to the standby mode, the method further includes:
and changing the current mode of the redundant subsystem corresponding to the subsystem into the active mode.
Optionally, after evaluating whether the subsystem after the state change is in the failure state according to the current parameter of the subsystem after the state change and the state threshold of the standby mode, the method further includes:
and if the subsystem after the state change is in the failure state, replacing the subsystem after the state change with a new subsystem.
Optionally, after evaluating whether the subsystem is in a failure state according to the current parameter of the subsystem and a state threshold, the method further includes:
and if the current mode is the standby mode, replacing the subsystem with a new subsystem.
In a second aspect of the present application, there is provided an electronic device comprising:
a memory;
a processor; and
a computer program;
wherein the computer program is stored in the memory and configured to be executed by the processor to implement the method according to the first aspect.
In a third aspect of the present application, there is provided a computer readable storage medium having a computer program stored thereon; the computer program is executed by a processor to implement the method according to the first aspect as described above.
The application provides a method, equipment and medium for evaluating failure states of subsystems in a hardware system, wherein the method comprises the following steps: determining initial parameters of a subsystem in a current working mode, wherein the current working mode is a standby mode or an in-service mode; determining a state threshold value of the current mode according to the initial parameters; and evaluating whether the subsystem is in a failure state or not according to the current parameters of the subsystem and a state threshold, if so, changing the current mode of the subsystem into a standby mode when the current mode is in an active mode, determining initial parameters of the subsystem after the mode is changed in the standby mode, determining the state threshold of the standby mode according to the initial parameters in the standby mode, and evaluating whether the subsystem after the mode is changed is in the failure state or not according to the current parameters of the subsystem after the mode is changed and the state threshold of the standby mode.
According to the method, the state threshold value is determined according to the initial parameters of the subsystem in the current working mode, and whether the subsystem is in the failure state is evaluated based on the current parameters and the state threshold value. In addition, when the subsystem fails, the current mode of the subsystem is changed into a standby mode, a state threshold value is determined based on initial parameters in the standby mode, and then the failure state of the subsystem in the changed mode is evaluated based on the state threshold value in the standby mode, so that the fact that the same subsystem adopts different failure state evaluation schemes in different modes is achieved. .
In addition, in one implementation, because the subsystem may be unstable when entering the current mode, the parameters of the subsystem are acquired only when the subsystem enters the current working mode and works for a preset time period, so that the stability of the initial parameters is ensured, the initial condition of the subsystem can be accurately reflected, the evaluation accuracy is further effectively improved, the high-reliability operation of the rail transit hardware system is ensured, and the maintenance cost is further saved.
In addition, in one implementation, each state threshold is determined to be the product of preset coefficients and initial parameters, so that the relevance between the threshold of failure state evaluation and the initial condition of the subsystem is ensured, the threshold of failure state evaluation can accurately reflect the real state of the subsystem, the evaluation accuracy is further effectively improved, the high-reliability operation of a rail transit hardware system is ensured, and the maintenance cost is further saved.
In addition, in one implementation, the current state of the subsystem is determined according to the current parameters and the state threshold value of the subsystem, if the current state is the failure state, the subsystem is determined to be in the failure state, and whether the subsystem is in the failure state or not is evaluated based on the current parameters and the state threshold value.
In addition, in one implementation, a determination scheme of a health state, a sub-health state, a fault state and a failure state is determined, the determination of each state is guaranteed to be related to the current condition of the subsystem and the initial condition of the subsystem, the accuracy of evaluation can be effectively improved, the high-reliability operation of a rail transit hardware system is guaranteed, and the maintenance cost is further saved.
In addition, in one implementation, if the current mode is the active mode, after the current mode of the subsystem is changed into the standby mode, the current mode of the redundant subsystem corresponding to the subsystem is also changed into the active mode, so that the redundant system can be used for replacing the failed subsystem in time, and the high-reliability operation of the rail transit hardware system is ensured.
In addition, in one implementation, after the current mode of the subsystem is changed into the standby mode, when the subsystem after the state change is in the failure state, the subsystem after the state change is replaced by a new subsystem, so that the availability of the subsystem after the state change is ensured, and the high-reliability operation of the rail transit hardware system is further ensured.
In addition, in one implementation, after the subsystem is determined to be failed, if the current mode is the standby mode, the subsystem is replaced by a new subsystem, so that the availability of the subsystem is ensured, and high-reliability operation of a rail transit hardware system is further ensured.
According to the electronic equipment, the computer program is executed by the processor to determine the state threshold according to the initial parameters of the subsystem in the current working mode, and then whether the subsystem is in the failure state is evaluated based on the current parameters and the state threshold. In addition, when the subsystem fails, the current mode of the subsystem is changed into a standby mode, a state threshold value is determined based on initial parameters in the standby mode, and then the failure state of the subsystem in the changed mode is evaluated based on the state threshold value in the standby mode, so that the fact that the same subsystem adopts different failure state evaluation schemes in different modes is achieved.
According to the computer readable storage medium provided by the application, the computer program is executed by the processor to determine the state threshold according to the initial parameter of the subsystem in the current working mode, and then whether the subsystem is in the failure state is evaluated based on the current parameter and the state threshold. In addition, when the subsystem fails, the current mode of the subsystem is changed into a standby mode, a state threshold value is determined based on initial parameters in the standby mode, and then the failure state of the subsystem in the changed mode is evaluated based on the state threshold value in the standby mode, so that the fact that the same subsystem adopts different failure state evaluation schemes in different modes is achieved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic flowchart of a method for evaluating a failure state of a subsystem in a rail transit hardware system according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of an active subsystem and a standby subsystem in a rail transit hardware system according to an embodiment of the present disclosure;
fig. 3 is a schematic state diagram of an active subsystem inside a rail transit hardware system according to an embodiment of the present disclosure;
fig. 4 is a schematic state diagram of an internal standby subsystem of a rail transit hardware system according to an embodiment of the present disclosure;
fig. 5 is a schematic state transition diagram of an active subsystem in a rail transit hardware system according to an embodiment of the present disclosure.
Detailed Description
In order to make the technical solutions and advantages of the embodiments of the present application more apparent, the following further detailed description of the exemplary embodiments of the present application with reference to the accompanying drawings makes it clear that the described embodiments are only a part of the embodiments of the present application, and are not exhaustive of all embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
In the process of implementing the present application, the inventor finds that, currently, each subsystem inside a rail transit hardware system usually has a redundant configuration, and when a subsystem in service inside the rail transit hardware system (for convenience of description, referred to as "in-service" for short in the present application) is abnormal, the corresponding redundant subsystem is immediately switched from a standby mode to an in-service mode, so as to ensure normal operation of the rail transit hardware system. However, under the influence of external severe environment (such as temperature, humidity and vibration) stress and load stress without interruption, the subsystems (including the active subsystem and the standby subsystem) inside the rail transit hardware system inevitably degrade and then fail, and the normal operation of the whole rail transit system is affected. Therefore, how to effectively evaluate whether the subsystem inside the rail transit hardware system fails becomes a problem to be solved urgently.
In view of the foregoing problems, embodiments of the present application provide a method, device, and medium for evaluating a failure state of a subsystem in a hardware system, where the method includes: determining initial parameters of a subsystem in a current working mode, wherein the current working mode is a standby mode or an in-service mode; determining a state threshold value of the current mode according to the initial parameters; and evaluating whether the subsystem is in a failure state or not according to the current parameters of the subsystem and a state threshold, if so, changing the current mode of the subsystem into a standby mode when the current mode is in an active mode, determining initial parameters of the subsystem after the mode is changed in the standby mode, determining the state threshold of the standby mode according to the initial parameters in the standby mode, and evaluating whether the subsystem after the mode is changed is in the failure state or not according to the current parameters of the subsystem after the mode is changed and the state threshold of the standby mode. According to the method and the system, the state threshold value is determined according to the initial parameters of the subsystem in the current working mode, and whether the subsystem is in the failure state is evaluated based on the current parameters and the state threshold value. In addition, when the subsystem fails, the current mode of the subsystem is changed into a standby mode, a state threshold value is determined based on initial parameters in the standby mode, and then the failure state of the subsystem in the changed mode is evaluated based on the state threshold value in the standby mode, so that the fact that the same subsystem adopts different failure state evaluation schemes in different modes is achieved.
Taking the subsystem as a "signal power supply system" in the rail transit hardware system as an example, as shown in fig. 2, wherein the ith active subsystemSystem SiAnd the ith standby subsystem (i.e., active subsystem S)iRedundant System) RiThere is a correspondence. Subsequent in-service subsystem SiAre all corresponding to standby subsystem RiAnd switching the working modes. In this embodiment, the failure state evaluation is performed on each subsystem (including the active subsystem and the standby subsystem), the evaluation mode of each subsystem is the same, and the evaluation is performed by the hardware system internal subsystem failure state evaluation method shown in fig. 1.
In the following, only any subsystem is taken as an example to describe the implementation flow of the hardware system internal subsystem failure state evaluation method provided in this embodiment, referring to fig. 1, the implementation flow is as follows:
101, determining initial parameters of the subsystem in the current working mode.
Since the subsystem may be an active subsystem or a standby subsystem, the current operating mode of the subsystem is a standby mode or an active mode.
For example, if a subsystem is an active subsystem, its current operating mode is an active mode, and if a subsystem is a standby subsystem, its current operating mode is a standby mode.
Because the subsystem may be unstable when entering the current mode, in the step, when the subsystem is specifically implemented, the parameter of the subsystem may be obtained after the subsystem enters the current working mode and works for a preset time period, and the parameter is used as an initial parameter.
In addition, each subsystem may be configured with two monitoring modes: monitoring mode M1And monitoring mode M2. Wherein, the monitoring mode M1When the subsystem is in an active mode (i.e. the subsystem is an active subsystem), the parameter of the system is monitored (for example, the monitored parameter is denoted as V)rip，i，m). Monitoring mode M2When the subsystem is in a standby mode (i.e. the subsystem is a standby subsystem), the parameter of the system is monitored (for example, the monitored parameter is denoted as V)out，i，n). Wherein m is the monitoring time of the active subsystem, and n is the monitoring time of the standby subsystem. That isThat is, for any subsystem, such as subsystem i, it is configured with monitoring mode M1And monitoring mode M2. If it is in active mode, i.e. it is an active subsystem, it passes through monitoring mode M1The parameters thereof are monitored. If it is in standby mode, i.e. it is a standby subsystem, it passes the monitoring mode M2The parameters thereof are monitored.
In this step, the subsystem will also pass the monitoring mode M1Or monitoring mode M2Initial parameters are obtained.
For example, if the subsystem i is in active mode, i.e. it is an active subsystem, the subsystem i works for a period of time in active mode, and the monitoring mode M is used1Measuring its initial parameter (e.g. recording its monitored initial parameter as V)rip，i，0)。
If the subsystem i is in the standby mode, that is, it is a standby subsystem, the subsystem i works for a period of time in the standby mode, and the monitoring mode M is used2Measuring its initial parameter (e.g. recording its monitored initial parameter as V)out，i，0)。
By the method, the stability of the initial parameters is guaranteed, the initial condition of the subsystem can be accurately reflected, the evaluation accuracy is effectively improved, the high-reliability operation of a rail transit hardware system is guaranteed, and the maintenance cost is further saved.
And 102, determining a state threshold value of the current mode according to the initial parameters.
Wherein the state threshold comprises: a health state threshold, a sub-health state threshold, a fault state threshold, a failure state threshold.
In particular, the method comprises the following steps of,
and determining the health state threshold value as the product of the preset health coefficient and the initial parameter.
And determining the sub-health state threshold value as the product of the preset sub-health coefficient and the initial parameter.
And determining the fault state threshold value as the product of the preset fault coefficient and the initial parameter.
And determining the failure state threshold value as the product of a preset failure coefficient and an initial parameter.
That is, whether in active or standby mode, the respective health state threshold, sub-health state threshold, fault state threshold, and failure state threshold are included.
For example, if the current mode is the active mode, the health state threshold is b, the sub-health state threshold is c, the fault state threshold is d, and the failure state threshold is e.
If the current mode is the standby mode, the health state threshold value is f, the sub-health state threshold value is g, the fault state threshold value is h, and the failure state threshold value is k.
Through the steps, the relevance between the threshold value of the failure state evaluation and the initial condition of the subsystem is ensured, so that the threshold value of the failure state evaluation can accurately reflect the real state of the subsystem, the evaluation accuracy is effectively improved, the high-reliability operation of a rail transit hardware system is ensured, and the maintenance cost is further saved.
And 103, evaluating whether the subsystem is in a failure state according to the current parameters of the subsystem and the state threshold value.
In particular, the method comprises the following steps of,
1. and determining the current state of the subsystem according to the current parameters and the state threshold of the subsystem.
Wherein, the current state is one of the following: health status, sub-health status, fault status, failure status.
In particular, the method comprises the following steps of,
and if the current parameter of the subsystem is greater than the health state threshold value and not greater than the sub-health state threshold value, determining that the current state of the subsystem is the health state.
And if the current parameter of the subsystem is greater than the sub-health state threshold value and not greater than the fault state threshold value, determining that the current state of the subsystem is the sub-health state.
And if the current parameter of the subsystem is greater than the fault state threshold value and not greater than the failure state threshold value, determining that the current state of the subsystem is the fault state.
And if the current parameter of the subsystem is greater than the failure state threshold value, determining that the current state of the subsystem is the failure state.
For example, if the current mode is in-service mode, the health state threshold is b, the sub-health state threshold is c, the fault state threshold is d, the failure state threshold is e, and the initial parameter is Vrip，i，0The current parameter is Vrip，i，m(wherein the current parameter can be monitored by means of the monitoring mode M1Obtained), then, with reference to figure 3,
if Vrip，i，m∈(b*Vrip，i，0，c*Vrip，i，0]Then the current state of the subsystem is determined to be a healthy state.
If Vrip，i，m∈(c*Vrip，i，0，d*Vrip，i，0]Then the current state of the subsystem is determined to be a sub-health state.
If Vrip，i，m∈(d*Vrip，i，0，e*Vrip，i，0]Then the current state of the subsystem is determined to be a fault state.
If Vrip，i，m∈(e*Vrip，i，0And infinity), the current state of the subsystem is determined to be a failure state.
For another example, if the current mode is the standby mode, the health state threshold is f, the sub-health state threshold is g, the fault state threshold is h, the failure state threshold is k, and the initial parameter is Vout，i，0，The current parameter is Vout，i，n(wherein the current parameter can be monitored by means of the monitoring mode M2Obtained), then, with reference to figure 4,
if Vout，i，n∈(f*Vout，i，0，g*Vout，i，0]Then the current state of the subsystem is determined to be a healthy state.
If Vout，i，n∈(g*Vout，i，0，h*Vout，i，0]Then the current state of the subsystem is determined to be a sub-health state.
If Vout，i，n∈(h*Vout，i，0，k*Vout，i，0]Then the current state of the subsystem is determined to be a fault state.
If Vout，i，n∈(k*Vout，i，0Infinity), thenThe current state of the stator system is a failure state.
The scheme for determining the health state, the sub-health state, the fault state and the failure state ensures that the determination of each state is closely related to the current condition of the subsystem and the initial condition of the subsystem, can effectively improve the accuracy of evaluation, ensures the high-reliability operation of a rail transit hardware system, and further saves the maintenance cost.
2. And if the current state is the failure state, determining that the subsystem is in the failure state.
For example, when a subsystem is in a failure state, it needs to be repaired, and this repair is only to repair the failure, and its state does not change, so the repair effect is "repair as old".
For another example, when a subsystem is in a failure state, it needs to be replaced, and the new state is obtained after the replacement, so the repair effect is "repair as new".
The method and the device have the advantages that the current state of the subsystem is determined according to the current parameters and the state threshold of the subsystem, if the current state is the failure state, the subsystem is determined to be in the failure state, and the purpose of evaluating whether the subsystem is in the failure state or not based on the current parameters and the state threshold is achieved.
And S104, if the subsystem is in the failure state, when the current mode is in the active mode, changing the current mode of the subsystem into the standby mode, determining initial parameters of the subsystem after the mode is changed in the standby mode, determining a state threshold of the standby mode according to the initial parameters in the standby mode, and evaluating whether the subsystem after the mode is changed is in the failure state according to the current parameters of the subsystem after the mode is changed and the state threshold of the standby mode.
In addition, after the current mode of the subsystem is changed into the standby mode, the current mode of the redundant subsystem corresponding to the subsystem is also changed into the active mode.
By changing the current mode of the redundant subsystem corresponding to the subsystem into the in-service mode, the redundant system can replace the subsystem in time after the subsystem fails, and the high-reliability operation of the rail transit hardware system is ensured.
In addition, in order to ensure the availability of the subsystems and further ensure the high-reliability operation of the rail transit hardware system, after the current mode of the subsystems is changed into the standby mode and the subsystems in the changed state are in the failure state, the subsystems in the changed state are replaced with new subsystems.
That is, if the subsystem currently in active mode is determined to be in failure state through steps 101 to 103, in step 104, the current mode of the subsystem is changed to standby mode, and the current mode of the redundant subsystem corresponding to the subsystem is changed to active mode. For the subsystem after the mode change, steps 101 to 103 of this embodiment are executed again (for example, determining the initial parameter of the subsystem after the mode change in the standby mode, determining the state threshold of the standby mode according to the initial parameter in the standby mode, and evaluating whether the subsystem after the mode change is in the failure state according to the current parameter of the subsystem after the mode change and the state threshold of the standby mode). If it is determined after steps 101 to 103 are executed again that the subsystem changed to the standby mode is still in the failure state, the subsystem changed to the standby mode is replaced with a new subsystem.
When the subsystem is in the in-service mode, the state threshold value of the in-service mode is determined according to the initial parameters of the in-service mode, and the failure state evaluation is carried out according to the state threshold value of the in-service mode. And when the active mode of the power supply fails, the power supply is switched to a standby mode, the state threshold of the standby mode is determined based on the initial parameters of the standby mode, and failure state evaluation is carried out according to the state threshold of the standby mode. After the standby mode also fails, it is replaced with a new subsystem. The subsystems in different modes adopt different state thresholds for failure state evaluation, and the same subsystem also adopts different state thresholds for failure state evaluation after the mode is changed, so that the current mode of the subsystem and the initial condition in the current mode are fully considered in the failure state evaluation result, the evaluation accuracy can be effectively improved, and the high-reliability operation of the rail transit hardware system is ensured.
And if the current mode is the standby mode, the subsystem is also replaced by a new subsystem after the subsystem is determined to be in the failure state.
The availability of the subsystems is ensured, and the high-reliability operation of the rail transit hardware system is further ensured.
For example, as shown in FIG. 5, for an active subsystem SiWhen V isrip，i，m＝e*Vrip，i，0In-service subsystem SiAnd when the system is in a fault state, corresponding maintenance is required. When V isrip，i，m∈(e*Vrip，i，0Infinity), in-service subsystem SiIn the failure state, it is necessary to immediately switch it to the standby mode. At this time, the standby subsystem (i.e., redundant subsystem) R is immediately switchediSwitching to an active mode to take over the active subsystem SiThe operation of (2). In addition, at the right time, the disabled in-service subsystem SiIs replaced by a completely new subsystem (e.g. S)upbate，i)。
For standby subsystem RiWhen V isout，i，n∈(k*Vout，i，0Infinity), standby subsystem RiIn a failure state, the standby subsystem R after failure needs to be in a proper timeiIs replaced with a completely new subsystem (e.g. R)update，i)。
In addition, after the replacement state, the method provided by the embodiment is also repeatedly executed, and the failure state of the subsystem after the replacement state is evaluated, so that the state of the subsystem after the replacement state is evaluated in real time, and the maintenance under each state is continuously executed.
For example, for the subsystem R switched to active modeiCarrying out monitoring mode M1And (5) monitoring.
Or, the method provided by the embodiment is repeatedly executed on the replaced brand new subsystem, and the failure state evaluation is performed on the replaced brand new subsystem, so that the state of the replaced brand new subsystem is evaluated in real time, and the maintenance under each state is continuously executed.
For example, for a completely new subsystem S of replacementupdate，iCarrying out monitoring mode M2And (5) monitoring.
The system aims at the problem that the rail transit hardware system with the redundant subsystem is inevitably degraded under severe external environment and load stress, and the normal operation of the whole rail transit system is influenced. In the existing scheme, the state of an in-service subsystem is evaluated according to the parameter change of the in-service subsystem so as to make maintenance measures immediately and improve the reliability and safety of a rail transit hardware system.
This approach suffers from several problems:
1, the status evaluation of the standby subsystem (i.e., redundant subsystem) is ignored. The standby subsystem is degraded by the heat radiation of the active subsystem and the external environment, and the parameters or states of the standby subsystem are changed more or less. If the standby subsystem is in a fault state, the standby subsystem is switched to an in-service mode to work, and the rail transit hardware system still cannot operate normally, so that the rail transit has a large potential safety hazard.
And 2, the influence of working mode switching on the state evaluation of the active subsystem is ignored. For the subsystem with status switching, the parameter measured when the standby subsystem (i.e. redundant subsystem) switches to the active mode is currently used as the initial parameter, and the status of the active subsystem is evaluated accordingly. This approach ignores the state degradation of the subsystem when in standby mode, and simply taking the subsystem switched to active mode as a good subsystem may cause a large deviation in the state estimation.
Therefore, the embodiment provides a state evaluation method considering the failure of the redundant subsystems in the rail transit hardware system, and the method specifically includes the acquisition of the standby mode and the initial parameters in the active mode of each subsystem in the rail transit hardware system, and the state evaluation of each subsystem in the rail transit hardware system in the respective working mode and after the switching of the working modes. The method can avoid the problem of state evaluation loss of the standby subsystem, can also avoid the influence of working mode switching on the state evaluation accuracy of the active subsystem, and can greatly improve the safety and reliability of the rail transit hardware system with the redundant subsystem.
In the method provided by the embodiment, the method provided by the application determines the initial parameters of the subsystem in the current working mode, wherein the current working mode is a standby mode or an in-service mode; determining a state threshold value of the current mode according to the initial parameters; and evaluating whether the subsystem is in a failure state or not according to the current parameters of the subsystem and a state threshold, if so, changing the current mode of the subsystem into a standby mode when the current mode is in an active mode, determining initial parameters of the subsystem after the mode is changed in the standby mode, determining the state threshold of the standby mode according to the initial parameters in the standby mode, and evaluating whether the subsystem after the mode is changed is in the failure state or not according to the current parameters of the subsystem after the mode is changed and the state threshold of the standby mode. According to the method and the device, the state threshold is determined according to the initial parameters of the subsystem in the current working mode, and whether the subsystem is in the failure state is evaluated based on the current parameters and the state threshold. In addition, when the subsystem fails, the current mode of the subsystem is changed into a standby mode, a state threshold value is determined based on initial parameters in the standby mode, and then the failure state of the subsystem in the changed mode is evaluated based on the state threshold value in the standby mode, so that the fact that the same subsystem adopts different failure state evaluation schemes in different modes is achieved.
Based on the same inventive concept of the method for evaluating the failure state of the subsystem in the hardware system, the embodiment provides an electronic device, which includes: memory, processor, and computer programs.
Wherein a computer program is stored in the memory and configured to be executed by the processor to implement the hardware system internal subsystem failure state evaluation method shown in fig. 1 described above.
In particular, the method comprises the following steps of,
determining initial parameters of the subsystem in a current working mode, wherein the current working mode is a standby mode or an active mode.
And determining the state threshold of the current mode according to the initial parameters.
Evaluating whether the subsystem is in a failure state according to the current parameters and the state threshold value of the subsystem;
if the subsystem is in the failure state, when the current mode is in the active mode, the current mode of the subsystem is changed into the standby mode, initial parameters of the subsystem after the mode is changed in the standby mode are determined, a state threshold value of the standby mode is determined according to the initial parameters in the standby mode, and whether the subsystem after the mode is changed is in the failure state or not is evaluated according to the current parameters of the subsystem after the mode is changed and the state threshold value of the standby mode.
Optionally, determining initial parameters of the subsystem in the current operating mode includes:
and when the subsystem enters the current working mode and works for a preset time period, acquiring the parameters of the subsystem, and taking the parameters as initial parameters.
Optionally, determining the state threshold of the current mode according to the initial parameter includes:
and determining the health state threshold value as the product of the preset health coefficient and the initial parameter.
And determining the sub-health state threshold value as the product of the preset sub-health coefficient and the initial parameter.
And determining the fault state threshold value as the product of the preset fault coefficient and the initial parameter.
And determining the failure state threshold value as the product of a preset failure coefficient and an initial parameter.
Optionally, the evaluating whether the subsystem is in the failure state according to the current parameter of the subsystem and the state threshold includes:
determining the current state of the subsystem according to the current parameters and the state threshold of the subsystem, wherein the current state is one of the following states: health status, sub-health status, fault status, failure status.
And if the current state is the failure state, determining that the subsystem is in the failure state.
Optionally, determining the current state of the subsystem according to the current parameter of the subsystem and the state threshold includes:
and if the current parameter of the subsystem is greater than the health state threshold value and not greater than the sub-health state threshold value, determining that the current state of the subsystem is the health state.
And if the current parameter of the subsystem is greater than the sub-health state threshold value and not greater than the fault state threshold value, determining that the current state of the subsystem is the sub-health state.
And if the current parameter of the subsystem is greater than the fault state threshold value and not greater than the failure state threshold value, determining that the current state of the subsystem is the fault state.
And if the current parameter of the subsystem is greater than the failure state threshold value, determining that the current state of the subsystem is the failure state.
Optionally, after the current mode of the subsystem is changed to the standby mode, the method further includes:
and changing the current mode of the redundant subsystem corresponding to the subsystem into the active mode.
Optionally, after evaluating whether the subsystem after the state change is in the failure state according to the current parameter of the subsystem after the state change and the state threshold of the standby mode, the method further includes:
and if the subsystem after the state change is in the failure state, replacing the subsystem after the state change with a new subsystem.
Optionally, after evaluating whether the subsystem is in the failure state according to the current parameter of the subsystem and the state threshold, the method further includes:
and if the current mode is the standby mode, replacing the subsystem with a new subsystem.
In the electronic device provided in this embodiment, a computer program is executed by a processor to determine initial parameters of a subsystem in a current operating mode, where the current operating mode is a standby mode or an in-service mode; determining a state threshold value of the current mode according to the initial parameters; and evaluating whether the subsystem is in a failure state or not according to the current parameters of the subsystem and a state threshold, if so, changing the current mode of the subsystem into a standby mode when the current mode is in an active mode, determining initial parameters of the subsystem after the mode is changed in the standby mode, determining the state threshold of the standby mode according to the initial parameters in the standby mode, and evaluating whether the subsystem after the mode is changed is in the failure state or not according to the current parameters of the subsystem after the mode is changed and the state threshold of the standby mode. According to the method and the system, the state threshold value is determined according to the initial parameters of the subsystem in the current working mode, and whether the subsystem is in the failure state is evaluated based on the current parameters and the state threshold value. In addition, when the subsystem fails, the current mode of the subsystem is changed into a standby mode, a state threshold value is determined based on initial parameters in the standby mode, and then the failure state of the subsystem in the changed mode is evaluated based on the state threshold value in the standby mode, so that the fact that the same subsystem adopts different failure state evaluation schemes in different modes is achieved.
Based on the same inventive concept of the hardware system internal subsystem failure state evaluation method, the present embodiment provides a computer on which a computer program is stored. The computer program is executed by a processor to implement the hardware system internal subsystem failure state evaluation method described above with reference to fig. 1.
In particular, the method comprises the following steps of,
determining initial parameters of the subsystem in a current working mode, wherein the current working mode is a standby mode or an active mode.
And determining the state threshold of the current mode according to the initial parameters.
Evaluating whether the subsystem is in a failure state according to the current parameters and the state threshold value of the subsystem;
if the subsystem is in the failure state, when the current mode is in the active mode, the current mode of the subsystem is changed into the standby mode, initial parameters of the subsystem after the mode is changed in the standby mode are determined, a state threshold value of the standby mode is determined according to the initial parameters in the standby mode, and whether the subsystem after the mode is changed is in the failure state or not is evaluated according to the current parameters of the subsystem after the mode is changed and the state threshold value of the standby mode.
Optionally, determining initial parameters of the subsystem in the current operating mode includes:
and when the subsystem enters the current working mode and works for a preset time period, acquiring the parameters of the subsystem, and taking the parameters as initial parameters.
Optionally, determining the state threshold of the current mode according to the initial parameter includes:
and determining the health state threshold value as the product of the preset health coefficient and the initial parameter.
And determining the sub-health state threshold value as the product of the preset sub-health coefficient and the initial parameter.
And determining the fault state threshold value as the product of the preset fault coefficient and the initial parameter.
And determining the failure state threshold value as the product of a preset failure coefficient and an initial parameter.
Optionally, the evaluating whether the subsystem is in the failure state according to the current parameter of the subsystem and the state threshold includes:
determining the current state of the subsystem according to the current parameters and the state threshold of the subsystem, wherein the current state is one of the following states: health status, sub-health status, fault status, failure status.
And if the current state is the failure state, determining that the subsystem is in the failure state.
Optionally, determining the current state of the subsystem according to the current parameter of the subsystem and the state threshold includes:
and if the current parameter of the subsystem is greater than the health state threshold value and not greater than the sub-health state threshold value, determining that the current state of the subsystem is the health state.
And if the current parameter of the subsystem is greater than the sub-health state threshold value and not greater than the fault state threshold value, determining that the current state of the subsystem is the sub-health state.
And if the current parameter of the subsystem is greater than the fault state threshold value and not greater than the failure state threshold value, determining that the current state of the subsystem is the fault state.
And if the current parameter of the subsystem is greater than the failure state threshold value, determining that the current state of the subsystem is the failure state.
Optionally, after the current mode of the subsystem is changed to the standby mode, the method further includes:
and changing the current mode of the redundant subsystem corresponding to the subsystem into the active mode.
Optionally, after evaluating whether the subsystem after the state change is in the failure state according to the current parameter of the subsystem after the state change and the state threshold of the standby mode, the method further includes:
and if the subsystem after the state change is in the failure state, replacing the subsystem after the state change with a new subsystem.
Optionally, after evaluating whether the subsystem is in the failure state according to the current parameter of the subsystem and the state threshold, the method further includes:
and if the current mode is the standby mode, replacing the subsystem with a new subsystem.
The present embodiment provides a computer readable storage medium, on which a computer program is executed by a processor to determine initial parameters of a subsystem in a current operating mode, the current operating mode being a standby mode or an in-service mode; determining a state threshold value of the current mode according to the initial parameters; and evaluating whether the subsystem is in a failure state or not according to the current parameters of the subsystem and a state threshold, if so, changing the current mode of the subsystem into a standby mode when the current mode is in an active mode, determining initial parameters of the subsystem after the mode is changed in the standby mode, determining the state threshold of the standby mode according to the initial parameters in the standby mode, and evaluating whether the subsystem after the mode is changed is in the failure state or not according to the current parameters of the subsystem after the mode is changed and the state threshold of the standby mode. According to the method and the system, the state threshold value is determined according to the initial parameters of the subsystem in the current working mode, and whether the subsystem is in the failure state is evaluated based on the current parameters and the state threshold value. In addition, when the subsystem fails, the current mode of the subsystem is changed into a standby mode, a state threshold value is determined based on initial parameters in the standby mode, and then the failure state of the subsystem in the changed mode is evaluated based on the state threshold value in the standby mode, so that the fact that the same subsystem adopts different failure state evaluation schemes in different modes is achieved.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein. The scheme in the embodiment of the application can be implemented by adopting various computer languages, such as object-oriented programming language Java and transliterated scripting language JavaScript.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims (10)

1. A failure state evaluation method for subsystems in a rail transit hardware system is characterized by comprising the following steps:
determining initial parameters of a subsystem in a current working mode, wherein the current working mode is a standby mode or an in-service mode;
determining a state threshold of the current mode according to the initial parameters;
evaluating whether the subsystem is in a failure state according to the current parameters and the state threshold value of the subsystem;
if the subsystem is in the failure state, when the current mode is in the active mode, the current mode of the subsystem is changed into the standby mode, initial parameters of the subsystem after the mode is changed in the standby mode are determined, a state threshold value of the standby mode is determined according to the initial parameters in the standby mode, and whether the subsystem after the mode is changed is in the failure state or not is evaluated according to the current parameters of the subsystem after the mode is changed and the state threshold value of the standby mode.
2. The method of claim 1, wherein determining initial parameters of the subsystem in the current operating mode comprises:
and when the subsystem enters the current working mode and works for a preset time period, acquiring the parameters of the subsystem, and taking the parameters as initial parameters.
3. The method of claim 1, wherein determining the state threshold of the current mode according to the initial parameters comprises:
determining a health state threshold value as a product of a preset health coefficient and the initial parameter;
determining a sub-health state threshold as a product of a preset sub-health coefficient and the initial parameter;
determining a fault state threshold value as a product of a preset fault coefficient and the initial parameter;
and determining the failure state threshold value as the product of a preset failure coefficient and the initial parameter.
4. The method of claim 3, wherein said evaluating whether the subsystem is in a failure state based on current parameters of the subsystem and a state threshold comprises:
determining the current state of the subsystem according to the current parameters and the state threshold of the subsystem, wherein the current state is one of the following states: health status, sub-health status, fault status, failure status;
and if the current state is the failure state, determining that the subsystem is in the failure state.
5. The method of claim 4, wherein determining the current state of the subsystem based on the current parameters of the subsystem and a state threshold comprises:
if the current parameter of the subsystem is greater than the health state threshold and not greater than the sub-health state threshold, determining that the current state of the subsystem is a health state;
if the current parameter of the subsystem is greater than the sub-health state threshold and not greater than the fault state threshold, determining that the current state of the subsystem is a sub-health state;
if the current parameter of the subsystem is larger than the fault state threshold value and not larger than the failure state threshold value, determining that the current state of the subsystem is a fault state;
and if the current parameter of the subsystem is larger than the failure state threshold value, determining that the current state of the subsystem is the failure state.
6. The method of claim 4, wherein after changing the current mode of the subsystem to the standby mode, further comprising:
and changing the current mode of the redundant subsystem corresponding to the subsystem into the active mode.
7. The method of claim 6, wherein after evaluating whether the subsystem after the state change is in the failure state according to the current parameters of the subsystem after the state change and the state threshold of the standby mode, further comprising:
and if the subsystem after the state change is in the failure state, replacing the subsystem after the state change with a new subsystem.
8. The method of claim 4, after evaluating whether the subsystem is in a failure state based on current parameters of the subsystem and a state threshold, further comprising:
and if the current mode is the standby mode, replacing the subsystem with a new subsystem.
9. An electronic device, comprising:
a memory;
a processor; and
a computer program;
wherein the computer program is stored in the memory and configured to be executed by the processor to implement the method of any one of claims 1-8.
10. A computer-readable storage medium, having stored thereon a computer program; the computer program is executed by a processor to implement the method of any one of claims 1-8.
CN202111553502.3A 2021-12-17 2021-12-17 Hardware system internal subsystem failure state evaluation method, equipment and medium Pending CN114298337A (en)

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