System reliability analysis method, device, equipment and readable storage medium

Abstract

The present invention relates to the technical field of system reliability analysis, and in particular, to a system reliability analysis method, device, equipment and readable storage medium. The system reliability analysis method comprises obtaining shape parameters, size parameters and position parameters of a relay, and calculating the reliability parameters of the relay; obtaining the mean time between failures of components of a host computer and the mean time between failures of components of a slave computer in the system, and calculating the reliability parameters of the host computer and the reliability parameters of the slave computer; obtaining the reliability parameters of a power supply panel in the system, and calculating the reliability parameters of the relay, the host computer, the slave computer and the power supply panel to obtain the reliability parameters of the system, and by combining a structural block diagram with a mathematical model, the system reliability can be predicted more systematically, scientifically and accurately in the early stage of system design to prevent risks.

Description

Technical Field

[0001] The present invention relates to the technical field of system reliability analysis, and in particular to a system reliability analysis method, device, equipment and readable storage medium. Background Art

[0002] The electrical centralized interlocking system is mainly used to realize the remote centralized control of tracks, switches, and signal interlocking in the station yard, and to monitor the locomotive maintenance operation. The primary task of the system is to ensure driving safety, so the reliability evaluation of the system is very important. The overall system carries a large amount of information, is highly important, and has strong functionality. Once it fails, the safety accidents and losses caused are also huge, even catastrophic. How to quickly, effectively, and accurately evaluate and analyze the reliability of the system during system design, correctly estimate the actual performance of the system, and reduce system risks is of extremely important practical significance. Summary of the invention

[0003] The purpose of the present invention is to provide a system reliability analysis method, device, equipment and readable storage medium to improve the above problems. In order to achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0004] On the one hand, the present application provides a system reliability analysis method, the method comprising: obtaining first information, the first information including shape parameters, size parameters and position parameters of a relay, bringing the first information into a first model to calculate the reliability parameters of the relay, the first model being a mathematical model for calculating the reliability parameters of the relay; obtaining second information, the second information including the mean time between failures of components of an upper computer and a lower computer in the system, inputting the second information into a second model to obtain the reliability parameters of the upper computer and the reliability parameters of the lower computer, the second model being a mathematical model for calculating the reliability parameters of the upper computer and the reliability parameters of the lower computer; obtaining the reliability parameters of a power supply panel in the system, inputting the reliability parameters of the relay, the reliability parameters of the upper computer, the reliability parameters of the lower computer and the reliability parameters of the power supply panel into a third model, the third model being a mathematical model for calculating the reliability parameters of the system, to obtain the reliability parameters of the system.

[0005] Optionally, the reliability parameters of the power supply panel in the system are obtained, and the reliability parameters of the relay, the reliability parameters of the host computer, the reliability parameters of the slave computer and the reliability parameters of the power supply panel are input into a third model, and the third model is a mathematical model for calculating the reliability parameters of the system. After obtaining the reliability parameters of the system, it also includes:

[0006] Obtaining a first threshold value that the reliability parameter of the system needs to reach, and determining whether the reliability parameter of the system reaches the first threshold value;

[0007] If the reliability parameter of the system reaches a first threshold, a first command is sent, wherein the first command includes outputting the reliability parameter of the system and displaying a command that the reliability of the system reaches the requirement;

[0008] If the reliability parameter of the system is lower than the first threshold, a second command is sent, wherein the second command includes outputting the reliability parameter of the system and displaying that the reliability of the system is lower than the requirement.

[0009] Optionally, the second information is obtained, the second information includes the mean time between failures of components of the upper computer and the mean time between failures of components of the lower computer in the system, the second information is input into a second model, and the reliability parameters of the upper computer and the reliability parameters of the lower computer are obtained, and the second model is a mathematical model for calculating the reliability parameters of the upper computer and the reliability parameters of the lower computer, including:

[0010] Acquire the second information, calculate the mean time between failures of the components of the upper computer and the reciprocal of the mean time between failures of the components of the lower computer in the second information, and obtain the third information, wherein the third information is the failure rate of the upper computer and the failure rate of the lower computer;

[0011] The reliability parameter of the upper computer is obtained by calculating the third information according to the calculation formula of the reliability parameter of the upper computer, and the reliability parameter of the lower computer is obtained by calculating the third information according to the calculation formula of the reliability parameter of the lower computer.

[0012] Optionally, the reliability parameters of the power supply panel in the system are obtained, and the reliability parameters of the relay, the reliability parameters of the host computer, the reliability parameters of the slave computer and the reliability parameters of the power supply panel are input into a third model, and the third model is a mathematical model for calculating the reliability parameters of the system. After obtaining the reliability parameters of the system, it also includes:

[0013] Compare the reliability parameter of the relay, the reliability parameter of the host computer, the reliability parameter of the slave computer and the reliability parameter of the power supply panel to obtain the component information with the lowest reliability;

[0014] The component information with the lowest reliability is converted into a two-dimensional code, and the two-dimensional code is sent to a receiving device of a manager.

[0015] Optionally, the reliability parameters of the power supply panel in the system are obtained, and the reliability parameters of the relay, the reliability parameters of the host computer, the reliability parameters of the slave computer and the reliability parameters of the power supply panel are input into a third model, and the third model is a mathematical model for calculating the reliability parameters of the system. After obtaining the reliability parameters of the system, it also includes:

[0016] Obtain a second threshold value, determine whether the reliability parameter of the relay, the reliability parameter of the host computer, the reliability parameter of the lower computer, and the reliability parameter of the power supply screen are all greater than the second threshold value, if the reliability parameter of the relay, the reliability parameter of the host computer, the reliability parameter of the lower computer, and the reliability parameter of the power supply screen are all greater than the second threshold value, then send information that the reliability of the system structure does not meet the requirements to the receiving device of the management personnel;

[0017] If one or more of the reliability parameters of the relay, the reliability parameters of the host computer, the reliability parameters of the slave computer and the reliability parameters of the power panel are lower than the second threshold, the component information with reliability parameters lower than the second threshold is sent to the receiving device of the administrator, and the component information is marked in red.

[0018] Optionally, the reliability parameters of the power supply panel in the system are obtained, and the reliability parameters of the relay, the reliability parameters of the host computer, the reliability parameters of the slave computer and the reliability parameters of the power supply panel are input into a third model, and the third model is a mathematical model for calculating the reliability parameters of the system. After obtaining the reliability parameters of the system, it also includes:

[0019] Obtaining the mean time between failures of each component in the system, calculating the inverse of the mean time between failures of each component in the system, obtaining the failure rate of each component, and correlating and analyzing the failure rate of each component with the reliability parameter of the system to obtain the relationship between the failure rate of each component and the reliability parameter of the system;

[0020] The relationship between the failure rate of each component and the reliability parameter of the system is constructed into a relationship graph, the failure rate of the component with the greatest impact on the reliability parameter of the system in the relationship graph is obtained, and the failure rate of the component with the greatest impact on the reliability parameter of the system in the relationship graph is sent to the receiving device of the management personnel.

[0021] In a second aspect, an embodiment of the present application provides a system reliability analysis device, the device comprising:

[0022] a first processing unit, configured to obtain first information, wherein the first information includes shape parameters, size parameters, and position parameters of a relay, and to bring the first information into a first model to calculate a reliability parameter of the relay, wherein the first model is a mathematical model for calculating the reliability parameter of the relay;

[0023] A second processing unit is used to obtain second information, wherein the second information includes the mean time between failures of components of the upper computer and the mean time between failures of components of the lower computer in the system, and input the second information into a second model to obtain reliability parameters of the upper computer and reliability parameters of the lower computer, wherein the second model is a mathematical model for calculating the reliability parameters of the upper computer and the reliability parameters of the lower computer;

[0024] The third processing unit is used to obtain the reliability parameters of the power supply panel in the system, input the reliability parameters of the relay, the reliability parameters of the upper computer, the reliability parameters of the lower computer and the reliability parameters of the power supply panel into the third model, and the third model is a mathematical model for calculating the reliability parameters of the system to obtain the reliability parameters of the system.

[0025] Optionally, the device further comprises:

[0026] A first judging unit, configured to obtain a first threshold value that the reliability parameter of the system needs to reach, and judge whether the reliability parameter of the system reaches the first threshold value;

[0027] a first sending unit, configured to send a first command if the reliability parameter of the system reaches a first threshold, wherein the first command includes a command for outputting the reliability parameter of the system and displaying that the reliability of the system reaches a requirement;

[0028] The second sending unit is used to send a second command if the reliability parameter of the system is lower than the first threshold, wherein the second command includes outputting the reliability parameter of the system and displaying a command that the reliability of the system is lower than the requirement.

[0029] Optionally, the device comprises:

[0030] A first processing subunit is used to obtain second information, calculate the mean time between failures of components of the upper computer and the reciprocal of the mean time between failures of components of the lower computer in the second information, and obtain third information, wherein the third information is the failure rate of the upper computer and the failure rate of the lower computer;

[0031] The second processing sub-unit is used to calculate the reliability parameter of the upper computer by using the third information according to the calculation formula of the upper computer reliability parameter, and to calculate the reliability parameter of the lower computer by using the third information according to the calculation formula of the lower computer reliability parameter.

[0032] Optionally, the device further comprises:

[0033] A fourth processing unit, used for comparing the reliability parameter of the relay, the reliability parameter of the upper computer, the reliability parameter of the lower computer and the reliability parameter of the power panel to obtain the component information with the lowest reliability;

[0034] The third sending unit is used to convert the component information with the lowest reliability into a two-dimensional code, and send the two-dimensional code to a receiving device of a manager.

[0035] Optionally, the device further comprises:

[0036] A second judgment unit is used to obtain a second threshold value, judge whether the reliability parameter of the relay, the reliability parameter of the host computer, the reliability parameter of the lower computer and the reliability parameter of the power screen are all greater than the second threshold value, if the reliability parameter of the relay, the reliability parameter of the host computer, the reliability parameter of the lower computer and the reliability parameter of the power screen are all greater than the second threshold value, then send information that the reliability of the system structure does not meet the requirements to a receiving device of the administrator;

[0037] The fourth sending unit is used to send the component information whose reliability parameter is lower than the second threshold to the receiving device of the administrator if one or more of the reliability parameters of the relay, the reliability parameters of the host computer, the reliability parameters of the slave computer and the reliability parameters of the power screen are lower than the second threshold, and mark the component information in red.

[0038] Optionally, the device further comprises:

[0039] a fifth processing unit, configured to obtain a mean time between failures of each component in the system, calculate a reciprocal of the mean time between failures of each component in the system, obtain a failure rate of each component, associate and analyze the failure rate of each component with a reliability parameter of the system, and obtain a relationship between the failure rate of each component and the reliability parameter of the system;

[0040] The fifth sending unit is used to construct a relationship diagram based on the relationship between the failure rate of each component and the reliability parameter of the system, obtain the failure rate of the component with the greatest impact on the reliability parameter of the system in the relationship diagram, and send the failure rate of the component with the greatest impact on the reliability parameter of the system in the relationship diagram to the receiving device of the management personnel.

[0041] In a third aspect, an embodiment of the present application provides a system reliability analysis device, the device comprising a memory and a processor. The memory is used to store a computer program; the processor is used to implement the steps of the above system reliability analysis method when executing the computer program.

[0042] In a fourth aspect, an embodiment of the present application provides a readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps of the above-mentioned system reliability analysis method are implemented.

[0043] The beneficial effects of the present invention are:

[0044] The present invention combines the structural block diagram with the mathematical model and can predict the system reliability more systematically, scientifically and accurately in the early stage of system design according to the equipment parameters, thereby preventing the occurrence of risks.

[0045] The present invention can quickly, effectively and accurately evaluate and analyze the reliability of the system, correctly estimate the actual performance of the system and reduce the risk of the system, which has extremely important practical significance.

[0046] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or be understood by implementing the embodiments of the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description, claims, and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0048] Figure 1 It is a schematic flow chart of a system reliability analysis method described in an embodiment of the present invention;

[0049] Figure 2 is a schematic diagram of the structure of a system reliability analysis device described in an embodiment of the present invention;

[0050] Figure 3 It is a schematic diagram of the structure of a system reliability analysis device described in an embodiment of the present invention. DETAILED DESCRIPTION

[0051] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0052] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. At the same time, in the description of the present invention, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0053] Example 1

[0054] like Figure 1 As shown, this embodiment provides a system reliability analysis method, which includes step S1, step S2 and step S3.

[0055] Step S1, obtaining first information, wherein the first information includes shape parameters, size parameters and position parameters of a relay, and bringing the first information into a first model to calculate a reliability parameter of the relay, wherein the first model is a mathematical model for calculating the reliability parameter of the relay;

[0056] Step S2, obtaining second information, wherein the second information includes the mean time between failures of components of the upper computer and the mean time between failures of components of the lower computer in the system, inputting the second information into a second model, obtaining reliability parameters of the upper computer and reliability parameters of the lower computer, wherein the second model is a mathematical model for calculating the reliability parameters of the upper computer and the reliability parameters of the lower computer;

[0057] Step S3, obtain the reliability parameters of the power supply panel in the system, input the reliability parameters of the relay, the reliability parameters of the upper computer, the reliability parameters of the lower computer and the reliability parameters of the power supply panel into a third model, the third model is a mathematical model for calculating the reliability parameters of the system, and obtains the reliability parameters of the system.

[0058] In a specific embodiment of the present disclosure, the first model is a calculation formula. Since the reliability of the relay satisfies the Weibull distribution, the calculation formula of the first model is:

[0059]

[0060] Where R 继电器 (t) is the reliability function of the relay, t is the mean time between failures of the relay, m 继电器 is the shape parameter of the relay, α 继电器 is the size parameter of the relay and λ 继电器 is the position parameter of the relay, and the reliability parameter of the relay can be obtained according to the calculation formula;

[0061] The components of the host computer include industrial computers, monitors, keyboards and mice; the reliability calculation formula of the host computer is:

[0062] R 上位机 (t) = R 工控机 (t)×R 显示器 (t)×R 键盘 (t)×R 鼠标 (t)

[0063] λ 上位机 =λ 工控机 +λ 显示器 +λ 键盘 +λ 鼠标

[0064] R 上位机 (t) = (1-R 上位机主机 (t))(1-R 上位机备机 (t))

[0065] =2R 上位机 (t)-R 2 上位机 (t)

[0066]

[0067] Where R 上位机 (t) is the reliability function of the host computer with respect to t, R 工控机 (t) is the reliability function of the industrial computer with respect to t, R 键盘 (t) is the reliability function of the keyboard with respect to t, R 鼠标 (t) is the reliability function of the mouse with respect to t, λ 上位机 is the failure rate of the host computer, λ 工控机 is the failure rate of industrial computers, λ 显示器 is the failure rate, λ 键盘 is the failure rate of the keyboard and λ 鼠标 The failure rate, R上位机主机 (t) is the reliability function of the host computer, R 上位机备机 (t) is the reliability function of the host computer backup machine, λ 工控机 (t) is the failure rate function of the industrial computer, where t is the mean time between failures.

[0068] The components of the lower computer include power supply, PLC and I / O interface template. The reliability calculation formula of the lower computer is:

[0069] R 下位机 (t) = *1-(1-R 电源 (t)×R 下位机 (t)) 2 +×*1-(1-R I / O接口模板 (t)) 2 +

[0070]

[0071] Where R 下位机 (t) is the reliability function of the lower machine with respect to t, R 电源 (t) is the reliability function of the power supply with respect to t, R I / O接口模板 (t) is the reliability function of the I / O interface template with respect to t, λ 电源 is the failure rate of the power supply, λ 下位机 is the failure rate of the lower machine and λ I / O接口模块 is the failure rate of the I / O interface template, where t is the mean time between failures;

[0072] The reliability calculation formula of the whole system is:

[0073] R 系统 (t) = R 电源屏 (t)×R 上位机 (t)×R 下位机 (t)×R 继电器 (t)

[0074] Where R 电源屏 (t) is the reliability function of the power panel with respect to t. Through these calculation formulas, a mathematical model is established to calculate the reliability parameters of the system.

[0075] In a specific embodiment of the present disclosure, step S3 may be followed by step S4, step S5 and step S6.

[0076] Step S4: obtaining a first threshold value that the reliability parameter of the system needs to reach, and determining whether the reliability parameter of the system reaches the first threshold value.

[0077] Step S5: If the reliability parameter of the system reaches a first threshold, a first command is sent, wherein the first command includes outputting the reliability parameter of the system and displaying a command that the reliability of the system reaches the requirement;

[0078] Step S5: If the reliability parameter of the system is lower than the first threshold, a second command is sent, wherein the second command includes outputting the reliability parameter of the system and displaying that the reliability of the system is lower than the requirement.

[0079] It can be understood that the above steps are for determining whether the reliability parameter of the system reaches the first threshold, and further determining whether the reliability of the system meets the requirements.

[0080] In a specific embodiment of the present disclosure, step S2 includes step S21 and step S22.

[0081] Step S21, obtaining second information, calculating the mean time between failures of components of the upper computer and the reciprocal of the mean time between failures of components of the lower computer in the second information, and obtaining third information, wherein the third information is the failure rate of the upper computer and the failure rate of the lower computer;

[0082] Step S22: Calculate the reliability parameter of the upper computer by using the third information according to the calculation formula of the reliability parameter of the upper computer, and calculate the reliability parameter of the lower computer by using the third information according to the calculation formula of the reliability parameter of the lower computer.

[0083] In a specific embodiment of the present disclosure, step S6 may be followed by step S7 and step S8.

[0084] Step S7, comparing the reliability parameter of the relay, the reliability parameter of the host computer, the reliability parameter of the slave computer and the reliability parameter of the power panel to obtain the component information with the lowest reliability;

[0085] Step S8: convert the component information with the lowest reliability into a QR code, and send the QR code to a receiving device of a manager.

[0086] It is understandable that the above steps are to obtain the information of the component with the lowest reliability and determine the position of the lowest component. If it is necessary to improve the system reliability, the component with the lowest reliability can be replaced.

[0087] In a specific embodiment of the present disclosure, step S8 may be followed by step S9 and step S10.

[0088] Step S9, obtaining a second threshold value, judging whether the reliability parameter of the relay, the reliability parameter of the host computer, the reliability parameter of the lower computer and the reliability parameter of the power supply screen are all greater than the second threshold value, if the reliability parameter of the relay, the reliability parameter of the host computer, the reliability parameter of the lower computer and the reliability parameter of the power supply screen are all greater than the second threshold value, sending information indicating that the reliability of the system structure does not meet the requirements to the receiving device of the administrator;

[0089] Step S10: If one or more of the reliability parameters of the relay, the reliability parameters of the host computer, the reliability parameters of the slave computer and the reliability parameters of the power panel are lower than the second threshold, the component information with reliability parameters lower than the second threshold is sent to the receiving device of the administrator, and the component information is marked in red.

[0090] It is understandable that the above steps are intended to determine whether the reliability of the system structure is too low or the reliability of the components in the system is too low when the system reliability does not meet the requirements, and then change the system structure or replace the components based on the reasons.

[0091] In a specific embodiment of the present disclosure, step S10 may further include step S11 and step S12.

[0092] Step S11, obtaining the mean time between failures of each component in the system, calculating the inverse of the mean time between failures of each component in the system, obtaining the failure rate of each component, and correlating and analyzing the failure rate of each component with the reliability parameter of the system to obtain the relationship between the failure rate of each component and the reliability parameter of the system;

[0093] Step S12, constructing a relationship between the failure rate of each component and the reliability parameter of the system into a relationship graph, obtaining the failure rate of the component with the greatest impact on the reliability parameter of the system in the relationship graph, and sending the failure rate of the component with the greatest impact on the reliability parameter of the system in the relationship graph to the receiving device of the management personnel.

[0094] It can be understood that the above steps are to obtain the relationship between the failure rate of each component and the system reliability, and then find out the component that has the greatest impact on the system reliability. Improving the reliability of the component with the greatest reliability can greatly improve the reliability of the system.

[0095] Example 2

[0096] like Figure 2 As shown, this embodiment provides a system reliability analysis device, which includes a first processing unit 701, a second processing unit 702 and a third processing unit 703.

[0097] The first processing unit 701 is used to obtain first information, the first information includes shape parameters, size parameters and position parameters of the relay, and bring the first information into a first model to calculate the reliability parameters of the relay, the first model is a mathematical model for calculating the reliability parameters of the relay;

[0098] The second processing unit 702 is used to obtain second information, the second information includes the mean time between failures of components of the upper computer and the mean time between failures of components of the lower computer in the system, input the second information into a second model, and obtain the reliability parameters of the upper computer and the reliability parameters of the lower computer, the second model is a mathematical model for calculating the reliability parameters of the upper computer and the reliability parameters of the lower computer;

[0099] The third processing unit 703 is used to obtain the reliability parameters of the power supply panel in the system, and input the reliability parameters of the relay, the reliability parameters of the upper computer, the reliability parameters of the lower computer and the reliability parameters of the power supply panel into the third model. The third model is a mathematical model for calculating the reliability parameters of the system to obtain the reliability parameters of the system.

[0100] In a specific implementation of the present disclosure, the device further includes: a first judgment unit 704 , a first sending unit 705 , and a second sending unit 706 .

[0101] A first judging unit 704 is used to obtain a first threshold value that the reliability parameter of the system needs to reach, and judge whether the reliability parameter of the system reaches the first threshold value;

[0102] A first sending unit 705 is configured to send a first command if the reliability parameter of the system reaches a first threshold, wherein the first command includes outputting the reliability parameter of the system and displaying a command that the reliability of the system reaches a requirement;

[0103] The second sending unit 706 is configured to send a second command if the reliability parameter of the system is lower than the first threshold, wherein the second command includes outputting the reliability parameter of the system and displaying that the reliability of the system is lower than the requirement.

[0104] In a specific implementation of the present disclosure, the device further includes a first processing subunit 7021 and a second processing subunit 7022 .

[0105] The first processing subunit 7021 is used to obtain the second information, calculate the mean time between failures of the components of the upper computer and the reciprocal of the mean time between failures of the components of the lower computer in the second information, and obtain the third information, wherein the third information is the failure rate of the upper computer and the failure rate of the lower computer;

[0106] The second processing sub-unit 7022 is used to calculate the reliability parameter of the upper computer by using the third information according to the calculation formula of the upper computer reliability parameter, and to calculate the reliability parameter of the lower computer by using the third information according to the calculation formula of the lower computer reliability parameter.

[0107] In a specific implementation of the present disclosure, the device further includes a fourth processing unit 707 and a third sending unit 708 .

[0108] The fourth processing unit 707 is used to compare the reliability parameter of the relay, the reliability parameter of the upper computer, the reliability parameter of the lower computer and the reliability parameter of the power panel to obtain the component information with the lowest reliability;

[0109] The third sending unit 708 is used to convert the component information with the lowest reliability into a two-dimensional code, and send the two-dimensional code to a receiving device of the manager.

[0110] In a specific implementation of the present disclosure, the device further includes a second determining unit 709 and a fourth sending unit 710 .

[0111] The second judgment unit 709 is used to obtain a second threshold value, and judge whether the reliability parameter of the relay, the reliability parameter of the host computer, the reliability parameter of the lower computer, and the reliability parameter of the power screen are all greater than the second threshold value. If the reliability parameter of the relay, the reliability parameter of the host computer, the reliability parameter of the lower computer, and the reliability parameter of the power screen are all greater than the second threshold value, the information that the reliability of the system structure does not meet the requirements is sent to the receiving device of the administrator;

[0112] The fourth sending unit 710 is used to send the component information whose reliability parameters are lower than the second threshold to the receiving device of the administrator if one or more of the reliability parameters of the relay, the reliability parameters of the host computer, the reliability parameters of the slave computer and the reliability parameters of the power screen are lower than the second threshold, and mark the component information in red.

[0113] In a specific implementation of the present disclosure, the device further includes a fifth processing unit 711 and a fifth sending unit 712 .

[0114] The fifth processing unit 711 is used to obtain the mean time between failures of each component in the system, calculate the inverse of the mean time between failures of each component in the system, obtain the failure rate of each component, associate and analyze the failure rate of each component with the reliability parameter of the system, and obtain the relationship between the failure rate of each component and the reliability parameter of the system;

[0115] The fifth sending unit 712 is used to construct a relationship graph based on the relationship between the failure rate of each component and the reliability parameter of the system, obtain the failure rate of the component with the greatest impact on the reliability parameter of the system in the relationship graph, and send the failure rate of the component with the greatest impact on the reliability parameter of the system in the relationship graph to the receiving device of the management personnel.

[0116] It should be noted that, regarding the device in the above embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment of the method, and will not be elaborated here.

[0117] Example 3

[0118] Corresponding to the above method embodiment, the embodiment of the present disclosure further provides a system reliability analysis device. The system reliability analysis device described below and the system reliability analysis method described above can refer to each other.

[0119] Figure 3 FIG. 8 is a block diagram of a system reliability analysis device 800 according to an exemplary embodiment. Figure 3 As shown, the system reliability analysis device 800 may include: a processor 801 and a memory 802. The system reliability analysis device 800 may also include one or more of a multimedia component 803, an input / output (I / O) interface 804, and a communication component 805.

[0120] The processor 801 is used to control the overall operation of the system reliability analysis device 800 to complete all or part of the steps in the above-mentioned system reliability analysis method. The memory 402 is used to store various types of data to support the operation of the system reliability analysis device 800. These data may include, for example, instructions for any application or method used to operate on the system reliability analysis device 800, and application-related data, such as contact data, sent and received messages, pictures, audio, video, etc. The memory 802 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (Static Random Access Memory, referred to as SRAM), electrically erasable programmable read-only memory (Electrically Erasable Programmable Read-Only Memory, referred to as EEPROM), erasable programmable read-only memory (Erasable Programmable Read-Only Memory, referred to as EPROM), programmable read-only memory (Programmable Read-Only Memory, referred to as PROM), read-only memory (Read-Only Memory, referred to as ROM), magnetic memory, flash memory, magnetic disk or optical disk. The multimedia component 803 may include a screen and an audio component. The screen may be, for example, a touch screen, and the audio component is used to output and / or input audio signals. For example, the audio component may include a microphone, which is used to receive external audio signals. The received audio signal may be further stored in the memory 802 or sent through the communication component 805. The audio component also includes at least one speaker for outputting audio signals. The I / O interface 804 provides an interface between the processor 801 and other interface modules, and the above-mentioned other interface modules may be keyboards, mice, buttons, etc. These buttons may be virtual buttons or physical buttons. The communication component 805 is used for wired or wireless communication between the system reliability analysis device 800 and other devices. Wireless communication, such as Wi-Fi, Bluetooth, Near Field Communication (NFC), 2G, 3G or 4G, or a combination of one or more of them, so the corresponding communication component 805 may include: Wi-Fi module, Bluetooth module, NFC module.

[0121] In an exemplary embodiment, the system reliability analysis device 800 can be implemented by one or more application specific integrated circuits (Application Specific Integrated Circuit, ASIC), digital signal processors (Digital Signal Processor, DSP), digital signal processing devices (Digital Signal Processing Device, DSPD), programmable logic devices (Programmable Logic Device, PLD), field programmable gate arrays (Field Programmable Gate Array, FPGA), controllers, microcontrollers, microprocessors or other electronic components to perform the above-mentioned system reliability analysis method.

[0122] In another exemplary embodiment, a computer-readable storage medium including program instructions is also provided, and when the program instructions are executed by a processor, the steps of the above-mentioned system reliability analysis method are implemented. For example, the computer-readable storage medium can be the above-mentioned memory 802 including program instructions, and the above-mentioned program instructions can be executed by the processor 801 of the system reliability analysis device 800 to complete the above-mentioned system reliability analysis method.

[0123] Example 4

[0124] Corresponding to the above method embodiment, the embodiment of the present disclosure further provides a readable storage medium. The readable storage medium described below and the system reliability analysis method described above can refer to each other.

[0125] A readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the system reliability analysis method of the above method embodiment are implemented.

[0126] The readable storage medium may specifically be a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, or other readable storage medium that can store program codes.

[0127] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0128] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A system reliability analysis method, characterized in that: include: Acquire first information, the first information including shape parameters, size parameters and position parameters of the relay, and bring the first information into a first model to calculate the reliability parameters of the relay, the first model being a mathematical model for calculating the reliability parameters of the relay; Acquire second information, the second information including the mean time between failures of components of the upper computer and the mean time between failures of components of the lower computer in the system, input the second information into a second model, obtain reliability parameters of the upper computer and the reliability parameters of the lower computer, the second model is a mathematical model for calculating the reliability parameters of the upper computer and the reliability parameters of the lower computer; Obtain reliability parameters of a power panel in the system, input the reliability parameters of the relay, the reliability parameters of the host computer, the reliability parameters of the slave computer and the reliability parameters of the power panel into a third model, wherein the third model is a mathematical model for calculating the reliability parameters of the system, and obtain the reliability parameters of the system; Among them, the first model is a calculation formula. Since the reliability of the relay satisfies the Weibull distribution, the calculation formula of the first model is: Where R 继电器 (t) is the reliability function of the relay, t is the mean time between failures of the relay, m 继电器 is the shape parameter of the relay, α 继电器 is the size parameter of the relay and λ 继电器 is the position parameter of the relay, and the reliability parameter of the relay can be obtained according to the calculation formula; The components of the host computer include industrial computers, monitors, keyboards and mice; the reliability calculation formula of the host computer is: R 上位机 (t)=R 工控机 (t)×R 显示器 (t)×R 键盘 (t)×R 鼠标 (t) l 上位机 =λ 工控机 +λ 显示器 +λ 键盘 +λ 鼠标 R 上位机 (t)=(1-R 上位机主机 (t))(1-R 上位机备机 (t)) =2R 上位机 (t)-R 2 上位机 (t) Where R 上位机 (t) is the reliability function of the host computer with respect to t, R 工控机 (t) is the reliability function of the industrial computer with respect to t, R 键盘 (t) is the reliability function of the keyboard with respect to t, R 鼠标 (t) is the reliability function of the mouse with respect to t, λ 上位机 is the failure rate of the host computer, λ 工控机 is the failure rate of the industrial computer, λ 显示器 is the displayed failure rate, λ 键盘 is the failure rate of the keyboard and λ 鼠标 The failure rate, R 上位机主机 (t) is the reliability function of the host computer, R 上位机备机 (t) is the reliability function of the host computer backup machine, λ 工控机 (t) is the failure rate function of the industrial computer, where t is the mean time between failures; The components of the lower computer include power supply, PLC and I / O interface template; the reliability calculation formula of the lower computer is: R 下位机 (t)=[1-(1-R 电源 (t)×R 下位机 (t)) 2 ] ×[1-(1-R I / O接口模板 (t)) 2 ] Where R 下位机 (t) is the reliability function of the lower machine with respect to t, R 电源 (t) is the reliability function of the power supply with respect to t, R I / O接口模板 (t) is the reliability function of the I / O interface template with respect to t, λ 电源 is the failure rate of the power supply, λ 下位机 is the failure rate of the lower machine and λ I / O接口模块 is the failure rate of the I / O interface template, where t is the mean time between failures; The reliability calculation formula of the whole system is: R 系统 (t)=R 电源屏 (t)×R 上位机 (t)×R 下位机 (t)×R 继电器 (t) Where R 电源屏 (t) is the reliability function of the power panel with respect to t. Through these calculation formulas, a mathematical model is established to calculate the reliability parameters of the system.

2. The system reliability analysis method according to claim 1, characterized in that: The reliability parameters of the power panel in the system are obtained, and the reliability parameters of the relay, the reliability parameters of the host computer, the reliability parameters of the slave computer and the reliability parameters of the power panel are input into a third model, wherein the third model is a mathematical model for calculating the reliability parameters of the system. After obtaining the reliability parameters of the system, the method further includes: Obtaining a first threshold value that the reliability parameter of the system needs to reach, and determining whether the reliability parameter of the system reaches the first threshold value; If the reliability parameter of the system reaches a first threshold, a first command is sent, wherein the first command includes outputting the reliability parameter of the system and displaying a command that the reliability of the system reaches the requirement; If the reliability parameter of the system is lower than the first threshold, a second command is sent, wherein the second command includes outputting the reliability parameter of the system and displaying that the reliability of the system is lower than the requirement.

3. The system reliability analysis method according to claim 1, characterized in that: The second information is obtained, wherein the second information includes the mean time between failures of components of the upper computer and the mean time between failures of components of the lower computer in the system, and the second information is input into a second model to obtain the reliability parameters of the upper computer and the reliability parameters of the lower computer, wherein the second model is a mathematical model for calculating the reliability parameters of the upper computer and the reliability parameters of the lower computer, including: Acquire the second information, calculate the mean time between failures of the components of the upper computer and the reciprocal of the mean time between failures of the components of the lower computer in the second information, and obtain the third information, wherein the third information is the failure rate of the upper computer and the failure rate of the lower computer; The reliability parameter of the upper computer is obtained by calculating the third information according to the calculation formula of the reliability parameter of the upper computer, and the reliability parameter of the lower computer is obtained by calculating the third information according to the calculation formula of the reliability parameter of the lower computer.

4. The system reliability analysis method according to claim 1, characterized in that: The reliability parameters of the power panel in the system are obtained, and the reliability parameters of the relay, the reliability parameters of the host computer, the reliability parameters of the slave computer and the reliability parameters of the power panel are input into a third model, wherein the third model is a mathematical model for calculating the reliability parameters of the system. After obtaining the reliability parameters of the system, the method further includes: Compare the reliability parameter of the relay, the reliability parameter of the host computer, the reliability parameter of the slave computer and the reliability parameter of the power supply panel to obtain the component information with the lowest reliability; The component information with the lowest reliability is converted into a two-dimensional code, and the two-dimensional code is sent to a receiving device of a manager.

5. The system reliability analysis method according to claim 1, characterized in that: The reliability parameters of the power panel in the system are obtained, and the reliability parameters of the relay, the reliability parameters of the host computer, the reliability parameters of the slave computer and the reliability parameters of the power panel are input into a third model, wherein the third model is a mathematical model for calculating the reliability parameters of the system. After obtaining the reliability parameters of the system, the method further includes: Obtain a second threshold value, determine whether the reliability parameter of the relay, the reliability parameter of the host computer, the reliability parameter of the lower computer, and the reliability parameter of the power supply screen are all greater than the second threshold value, if the reliability parameter of the relay, the reliability parameter of the host computer, the reliability parameter of the lower computer, and the reliability parameter of the power supply screen are all greater than the second threshold value, then send information that the reliability of the system structure does not meet the requirements to the receiving device of the administrator; If one or more of the reliability parameters of the relay, the reliability parameters of the host computer, the reliability parameters of the slave computer and the reliability parameters of the power panel are lower than the second threshold, the component information with reliability parameters lower than the second threshold is sent to the receiving device of the administrator, and the component information is marked in red.

6. The system reliability analysis method according to claim 1, characterized in that: The reliability parameters of the power panel in the system are obtained, and the reliability parameters of the relay, the reliability parameters of the host computer, the reliability parameters of the slave computer and the reliability parameters of the power panel are input into a third model, wherein the third model is a mathematical model for calculating the reliability parameters of the system. After obtaining the reliability parameters of the system, the method further includes: Obtaining the mean time between failures of each component in the system, calculating the inverse of the mean time between failures of each component in the system, obtaining the failure rate of each component, and correlating and analyzing the failure rate of each component with the reliability parameter of the system to obtain the relationship between the failure rate of each component and the reliability parameter of the system; The relationship between the failure rate of each component and the reliability parameter of the system is constructed into a relationship graph, the failure rate of the component with the greatest impact on the reliability parameter of the system in the relationship graph is obtained, and the failure rate of the component with the greatest impact on the reliability parameter of the system in the relationship graph is sent to the receiving device of the management personnel.

7. A system reliability analysis device, characterized in that: include: a first processing unit, configured to obtain first information, wherein the first information includes shape parameters, size parameters, and position parameters of a relay, and to bring the first information into a first model to calculate a reliability parameter of the relay, wherein the first model is a mathematical model for calculating the reliability parameter of the relay; A second processing unit is used to obtain second information, wherein the second information includes the mean time between failures of components of the upper computer and the mean time between failures of components of the lower computer in the system, and input the second information into a second model to obtain reliability parameters of the upper computer and reliability parameters of the lower computer, wherein the second model is a mathematical model for calculating the reliability parameters of the upper computer and the reliability parameters of the lower computer; A third processing unit is used to obtain the reliability parameters of the power supply panel in the system, input the reliability parameters of the relay, the reliability parameters of the host computer, the reliability parameters of the slave computer and the reliability parameters of the power supply panel into a third model, wherein the third model is a mathematical model for calculating the reliability parameters of the system, and obtain the reliability parameters of the system; Among them, the first model is a calculation formula. Since the reliability of the relay satisfies the Weibull distribution, the calculation formula of the first model is: Where R 继电器 (t) is the reliability function of the relay, t is the mean time between failures of the relay, m 继电器 is the shape parameter of the relay, α 继电器 is the size parameter of the relay and λ 继电器 is the position parameter of the relay, and the reliability parameter of the relay can be obtained according to the calculation formula; The components of the host computer include industrial computers, monitors, keyboards and mice; the reliability calculation formula of the host computer is: R 上位机 (t)=R 工控机 (t)×R 显示器 (t)×R 键盘 (t)×R 鼠标 (t) l 上位机 =λ 工控机 +λ 显示器 +λ 键盘 +λ 鼠标 R 上位机 (t)=(1-R 上位机主机 (t))(1-R 上位机备机 (t)) =2R 上位机 (t)-R 2 上位机 (t) Where R 上位机 (t) is the reliability function of the host computer with respect to t, R 工控机 (t) is the reliability function of the industrial computer with respect to t, R 键盘 (t) is the reliability function of the keyboard with respect to t, R 鼠标 (t) is the reliability function of the mouse with respect to t, λ 上位机 is the failure rate of the host computer, λ 工控机 is the failure rate of the industrial computer, λ 显示器 is the displayed failure rate, λ 键盘 is the failure rate of the keyboard and λ 鼠标 The failure rate, R 上位机主机 (t) is the reliability function of the host computer, R 上位机备机 (t) is the reliability function of the host computer backup machine, λ 工控机 (t) is the failure rate function of the industrial computer, where t is the mean time between failures; The components of the lower computer include power supply, PLC and I / O interface template; the reliability calculation formula of the lower computer is: R 下位机 (t)=[1-(1-R 电源 (t)×R 下位机 (t)) 2 ] ×[1-(1-R I / O接口模板 (t)) 2 ] Where R 下位机 (t) is the reliability function of the lower machine with respect to t, R 电源 (t) is the reliability function of the power supply with respect to t, R I / O接口模板 (t) is the reliability function of the I / O interface template with respect to t, λ 电源 is the failure rate of the power supply, λ 下位机 is the failure rate of the lower machine and λ I / O接口模块 is the failure rate of the I / O interface template, where t is the mean time between failures; The reliability calculation formula of the whole system is: R 系统 (t)=R 电源屏 (t)×R 上位机 (t)×R 下位机 (t)×R 继电器 (t) Where R 电源屏 (t) is the reliability function of the power panel with respect to t. Through these calculation formulas, a mathematical model is established to calculate the reliability parameters of the system.

8. The system reliability analysis device according to claim 7, characterized in that: The device also includes: A first judging unit, configured to obtain a first threshold value that the reliability parameter of the system needs to reach, and judge whether the reliability parameter of the system reaches the first threshold value; a first sending unit, configured to send a first command if the reliability parameter of the system reaches a first threshold, wherein the first command includes a command for outputting the reliability parameter of the system and displaying that the reliability of the system reaches a requirement; The second sending unit is used to send a second command if the reliability parameter of the system is lower than the first threshold, wherein the second command includes outputting the reliability parameter of the system and displaying that the reliability of the system is lower than the requirement.

9. The system reliability analysis device according to claim 7, characterized in that: The device comprises: The first processing subunit is used to obtain the second information, calculate the mean time between failures of the components of the upper computer and the reciprocal of the mean time between failures of the components of the lower computer in the second information, and obtain the third information, wherein the third information is the failure rate of the upper computer and the failure rate of the lower computer; The second processing sub-unit is used to calculate the reliability parameter of the upper computer by using the third information according to the calculation formula of the upper computer reliability parameter, and to calculate the reliability parameter of the lower computer by using the third information according to the calculation formula of the lower computer reliability parameter.

10. The system reliability analysis device according to claim 7, characterized in that: The device also includes: A fourth processing unit, used for comparing the reliability parameter of the relay, the reliability parameter of the upper computer, the reliability parameter of the lower computer and the reliability parameter of the power panel to obtain the component information with the lowest reliability; The third sending unit is used to convert the component information with the lowest reliability into a two-dimensional code, and send the two-dimensional code to a receiving device of a manager.

11. The system reliability analysis device according to claim 7, characterized in that: The device also includes: A second judgment unit is used to obtain a second threshold value, judge whether the reliability parameter of the relay, the reliability parameter of the host computer, the reliability parameter of the lower computer and the reliability parameter of the power screen are all greater than the second threshold value, if the reliability parameter of the relay, the reliability parameter of the host computer, the reliability parameter of the lower computer and the reliability parameter of the power screen are all greater than the second threshold value, then send information that the reliability of the system structure does not meet the requirements to a receiving device of the administrator; The fourth sending unit is used to send the component information whose reliability parameter is lower than the second threshold to the receiving device of the administrator if one or more of the reliability parameters of the relay, the reliability parameters of the host computer, the reliability parameters of the slave computer and the reliability parameters of the power screen are lower than the second threshold, and mark the component information in red.

12. The system reliability analysis device according to claim 7, characterized in that: The device also includes: a fifth processing unit, configured to obtain a mean time between failures of each component in the system, calculate a reciprocal of the mean time between failures of each component in the system, obtain a failure rate of each component, associate and analyze the failure rate of each component with a reliability parameter of the system, and obtain a relationship between the failure rate of each component and the reliability parameter of the system; The fifth sending unit is used to construct a relationship diagram based on the relationship between the failure rate of each component and the reliability parameter of the system, obtain the failure rate of the component with the greatest impact on the reliability parameter of the system in the relationship diagram, and send the failure rate of the component with the greatest impact on the reliability parameter of the system in the relationship diagram to the receiving device of the management personnel.

13. A system reliability analysis device, characterized in that: include: Memory for storing computer programs; A processor, configured to implement the steps of the system reliability analysis method according to any one of claims 1 to 6 when executing the computer program.

14. A readable storage medium, characterized in that: The readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the system reliability analysis method according to any one of claims 1 to 6 are implemented.

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