CN117571033A - Cable channel environment sensing monitoring device operation performance analysis method and device - Google Patents
Cable channel environment sensing monitoring device operation performance analysis method and device Download PDFInfo
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Abstract
The invention discloses a method and a device for analyzing the operation performance of a cable channel environment sensing and monitoring device. The method comprises the following steps: recording test data of a cable channel environment sensing and monitoring device for performing a reliability test for a preset time, and counting the failure times of each unit element of the cable channel environment sensing and monitoring device, wherein the cable channel environment sensing and monitoring device comprises a parallel structure and a serial structure; determining the average fault-free time of the cable channel environment sensing monitoring device according to the failure times of each unit element and the total test time; determining the grade score of the cable channel environment sensing monitoring device according to the average fault-free time, the failure times of the serial structure and the failure times of the parallel structure; and determining the performance state of the cable channel environment sensing monitoring device according to the grade scores.
Description
Technical Field
The invention relates to the technical field of performance analysis of a cable channel environment sensing monitoring device, in particular to a method and a device for analyzing the operation performance of the cable channel environment sensing monitoring device.
Background
High voltage cable channels play a critical role in modern power systems as a key component of power transmission and distribution. The cable channels are responsible for delivering electrical energy, connecting the power station, the substation and the end user, so that the stable environment inside is critical for the normal operation of the power system. At present, various cable channel environment sensing monitoring devices in the industry are mainly used for sensing and monitoring parameter state parameters such as high-voltage cable channel environment, temperature, humidity, gas concentration and the like so as to ensure safe and stable operation of high-voltage cable equipment in a cable channel. However, the existing high-voltage channel monitoring devices often suffer from the problems of unstable data quality, short service life of equipment, limited monitoring range and the like, the application quality and effect are not yet expected, and key constraint factors are as follows: firstly, the running reliability of the deployed high-voltage cable channel on-line monitoring device is not too high. Typically, fault layers such as sensor installation errors, failure of various hardware when running time is not long, missing transmission of monitoring data, missing report/false report and the like exist endlessly. Typically, since day 11 of 9 of 2021, a continuous operation reliability evaluation test is performed for 8760 hours of a 6-manufacturer cable body type and channel type comprehensive online monitoring system under full-working-condition real evidence environment by the national electric institute, wherein the 10-class channel environment online monitoring device is totally failed and stopped for 9 times, and monitoring data is accessed for 14 times and abnormal 58 times. Secondly, the operation performance and the inspection requirements of the cable channel environment sensing monitoring device are disordered and non-uniform in the industry. The cable channel environment sensing monitoring devices in the domestic market are various in variety, products are layered endlessly, performances and utility levels are different, and meanwhile, the related online monitoring devices are subjected to quality and performance verification by authorities which are not similar to the quality detection test of the electric power primary equipment in China, so that power grid users are faced with the phenomena of blindness, no choice, no matching and no use of matching of the products. In addition, most of detection test units in the industry still carry out performance evaluation of the online monitoring device by using a live detection equipment test method, and the cable operation and maintenance unit cannot support the actual requirements of the cable operation and maintenance unit on the monitored index model selection and field application.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a method and a device for analyzing the operation performance of a cable channel environment sensing and monitoring device.
According to one aspect of the present invention, there is provided a method for analyzing the operation performance of a cable channel environment-aware monitoring device, comprising:
recording test data of a cable channel environment sensing and monitoring device for performing a reliability test for a preset time, and counting the failure times of each unit element of the cable channel environment sensing and monitoring device, wherein the cable channel environment sensing and monitoring device comprises a parallel structure and a serial structure;
determining the average fault-free time of the cable channel environment sensing monitoring device according to the failure times of each unit element and the total test time;
determining the grade score of the cable channel environment sensing monitoring device according to the average fault-free time, the failure times of the serial structure and the failure times of the parallel structure;
and determining the performance state of the cable channel environment sensing monitoring device according to the grade scores.
Optionally, the parallel structure includes: humiture unit, water level unit, gas monitoring unit, visual prison clapping ball machine unit, well lid unit, the tandem structure includes: the device comprises a data processing unit, a power supply unit and a communication unit.
Optionally, determining the average failure-free time of the cable channel environment sensing monitoring device according to the failure times of each unit element and the total test time comprises the following steps:
determining the failure rate of each unit element according to the failure times of each unit element and the total test time;
calculating the reliability of each unit element according to the failure rate of each unit element;
calculating the reliability of the parallel structure according to the reliability of all unit elements of the parallel structure and a pre-constructed reliability model of the parallel structure;
calculating the reliability of the series structure according to the reliability of all unit elements of the series structure and a pre-constructed reliability model of the series structure;
calculating the total reliability of the cable channel environment sensing and monitoring device according to the reliability of the parallel structure and the reliability of the serial structure;
and calculating the average non-fault time of the cable channel environment sensing monitoring device according to the total reliability and the pre-constructed average non-fault time model.
Optionally, the reliability calculation formula is:
R i (t)＝e -λt
wherein R is i (t) is the reliability of the ith unit element, λ is the failure rate, λ=the number of failures/total test time, and t is the test time.
Optionally, the parallel structure reliability model is:
wherein R is j (t) the reliability of the jth unit element in the parallel structure, and n is the number of unit elements in the parallel structure;
the series structure reliability model is:
wherein R is k And (t) is the reliability of the kth unit element in the series structure, and m is the number of unit elements in the series structure.
Optionally, the calculation formula of the average failure free time is:
MTBF＝1/((1-R total (S) ))
R Total (S) ＝R A (t)*R B (t)
Wherein R is Total (S) For total reliability, MTBF is mean time to failure, R B (t) is the reliability of the series structure, R A And (t) is the reliability of the parallel structure.
Optionally, the calculation formula of the grade score is:
W＝(w 1 +w 2 +w 3 )/0.05
wherein w is 1 、w 2 、w 3 The method is characterized in that the method is a result obtained by multiplying the score of the cable channel environment sensing device according to the rating standard by the weight, wherein the weight of the average no-fault time is 50%, the weight of the failure times of the serial structure is 30%, the weight of the failure times of the parallel structure is 20%, and the score of the rating standard is 1-5.
Optionally, determining the performance state of the cable channel environmental awareness monitoring device according to the grade score includes:
under the condition that the grade score is less than 0-60 minutes, judging that the performance state of the cable passage environment sensing monitoring device is unqualified;
under the condition that the grade score is greater than or equal to 60 minutes and less than 80 minutes, judging that the performance state of the cable channel environment sensing monitoring device is good;
in the case where the class score is 80 points or more and 100 points or less, it is determined that the performance state of the cable passage environmental perception monitoring device is excellent.
According to another aspect of the present invention, there is provided an operation performance analysis device of a cable passage environment sensing monitoring device, comprising:
the recording module is used for recording test data of the cable channel environment sensing monitoring device for performing a reliability test for a preset time and counting the failure times of each unit element of the cable channel environment sensing monitoring device, wherein the cable channel environment sensing monitoring device comprises a parallel structure and a serial structure;
the first determining module is used for determining the average fault-free time of the cable channel environment sensing monitoring device according to the failure times of each unit element and the total test time;
the second determining module is used for determining the grade score of the cable channel environment sensing monitoring device according to the average fault-free time, the failure times of the serial structure and the failure times of the parallel structure;
and the third determining module is used for determining the performance state of the cable channel environment sensing monitoring device according to the grade scores.
According to a further aspect of the present invention there is provided a computer readable storage medium storing a computer program for performing the method according to any one of the above aspects of the present invention.
According to still another aspect of the present invention, there is provided an electronic device including: a processor; a memory for storing the processor-executable instructions; the processor is configured to read the executable instructions from the memory and execute the instructions to implement the method according to any of the above aspects of the present invention.
Therefore, the operation performance analysis method of the cable channel environment sensing monitoring device provided by the application evaluates the performance of each model element through the mathematical model, long-term operation data and failure reasons, and finally comprehensively considers the performance index of the provided cable channel environment sensing monitoring device, and provides a comprehensive evaluation and improvement scheme for the device performance so as to enhance the performance of the device in practical application, discover the environment abnormality of the cable channel in time and protect the high-voltage cable from stable operation.
Drawings
Exemplary embodiments of the present invention may be more completely understood in consideration of the following drawings:
FIG. 1 is a flow chart of a method for analyzing the performance of a cable tunnel environmental awareness monitoring device according to an exemplary embodiment of the present invention;
FIG. 2 is a block diagram of components of a cable channel environmental awareness monitoring device according to an exemplary embodiment of the present invention;
FIG. 3 is a schematic diagram of a device for analyzing the performance of a cable pathway environmental awareness monitoring device according to an exemplary embodiment of the present invention;
fig. 4 is a structure of an electronic device provided in an exemplary embodiment of the present invention.
Detailed Description
Hereinafter, exemplary embodiments according to the present invention will be described in detail with reference to the accompanying drawings. It should be apparent that the described embodiments are only some embodiments of the present invention and not all embodiments of the present invention, and it should be understood that the present invention is not limited by the example embodiments described herein.
It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise.
It will be appreciated by those of skill in the art that the terms "first," "second," etc. in embodiments of the present invention are used merely to distinguish between different steps, devices or modules, etc., and do not represent any particular technical meaning nor necessarily logical order between them.
It should also be understood that in embodiments of the present invention, "plurality" may refer to two or more, and "at least one" may refer to one, two or more.
It should also be appreciated that any component, data, or structure referred to in an embodiment of the invention may be generally understood as one or more without explicit limitation or the contrary in the context.
In addition, the term "and/or" in the present invention is merely an association relationship describing the association object, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In the present invention, the character "/" generally indicates that the front and rear related objects are an or relationship.
It should also be understood that the description of the embodiments of the present invention emphasizes the differences between the embodiments, and that the same or similar features may be referred to each other, and for brevity, will not be described in detail.
Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description.
The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods, and apparatus should be considered part of the specification.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
Embodiments of the invention are operational with numerous other general purpose or special purpose computing system environments or configurations with electronic devices, such as terminal devices, computer systems, servers, etc. Examples of well known terminal devices, computing systems, environments, and/or configurations that may be suitable for use with the terminal device, computer system, server, or other electronic device include, but are not limited to: personal computer systems, server computer systems, thin clients, thick clients, hand-held or laptop devices, microprocessor-based systems, set-top boxes, programmable consumer electronics, network personal computers, small computer systems, mainframe computer systems, and distributed cloud computing technology environments that include any of the foregoing, and the like.
Electronic devices such as terminal devices, computer systems, servers, etc. may be described in the general context of computer system-executable instructions, such as program modules, being executed by a computer system. Generally, program modules may include routines, programs, objects, components, logic, data structures, etc., that perform particular tasks or implement particular abstract data types. The computer system/server may be implemented in a distributed cloud computing environment in which tasks are performed by remote processing devices that are linked through a communications network. In a distributed cloud computing environment, program modules may be located in both local and remote computing system storage media including memory storage devices.
Exemplary method
Fig. 1 is a flow chart of a method for analyzing operation performance of a cable channel environment sensing and monitoring device according to an exemplary embodiment of the present invention. The embodiment can be applied to an electronic device, as shown in fig. 1, and the operation performance analysis method 100 of the cable channel environment sensing monitoring device includes the following steps:
step 101, recording test data of a cable channel environment sensing monitoring device for performing a reliability test for a preset time, and counting the failure times of each unit element of the cable channel environment sensing monitoring device, wherein the cable channel environment sensing monitoring device comprises a parallel structure and a serial structure;
optionally, the parallel structure includes: humiture unit, water level unit, gas monitoring unit, visual prison clapping ball machine unit, well lid unit, the tandem structure includes: the device comprises a data processing unit, a power supply unit and a communication unit.
Specifically, the cable channel environment sensing monitoring device adopts a layered and distributed structure and consists of various environment monitoring sub-devices and a monitoring host, wherein the monitoring sub-devices comprise but are not limited to the following sub-devices: the device comprises a water level monitoring device, a gas monitoring device, a well lid monitoring device, a visual monitoring device, an anti-theft and cutting monitoring device, a channel settlement monitoring device, a temperature and humidity monitoring device, a distributed optical fiber anti-external damage device, an anti-intrusion monitoring device and the like. The sensors and the signal acquisition units of the various monitoring sub-devices are distributed and installed on site and are used for sensing and acquiring environmental state parameters of the high-voltage cable channel.
Further, fig. 2 is a schematic diagram of a component structure of the cable channel environment sensing and monitoring device, in which unit performances of a data processing unit, a power supply unit and a communication unit affect the overall normal operation of the device, and any unit failure can cause the device to be judged as an overall failure, so that the reliability of the serial structure is calculated by adopting a serial model. The performance of other units such as a temperature and humidity unit, a water level unit, a gas monitoring unit, a visual ball striking machine monitoring unit, a well lid unit and the like can not influence the overall normal operation of the device, and any unit fails and can not cause the overall failure of the device, so that the reliability of the parallel structure is calculated by adopting a parallel model.
And carrying out a long-term operation reliability test on the cable channel environment sensing and monitoring device, and recording test data.
Further, the cable channel environment sensing monitoring device is subjected to a long-term operation reliability test, data in the test are recorded, and faults of all unit elements are counted and distinguished according to failure reasons. Referring to the definition in the seventh section of the reliability test of the electronic measuring instrument of GB 11463-1989, failure means that the product cannot complete its prescribed function within a prescribed time under prescribed conditions; the performance characteristics of the product are beyond the limit specified by the product standard, and the specific relevant contents are as follows:
independent failure refers to self-induced failure within a specimen, generally comprising:
a. failure of components: failure caused by defects in the component itself;
b. the design of the product fails: failure due to defects in the design of the product;
c. the manufacturing failure of the product: failure due to improper manufacturing process of the product or poor quality of the production process;
e. software error failure: failure due to program errors of the microcomputer or microprocessor;
f. the adjusting mechanism fails: failure of the product to perform the prescribed function is affected by the defect of the regulation control mechanism of the product itself;
g. failure of built-in test system: due to the defect of the built-in test system, the performance characteristics of the product cannot be kept between the specified upper limit and the specified lower limit;
h. repeated failure: in the same or equivalent use, two or more failures of the same component are caused by the same basic failure mechanism;
i. intermittent failure: after the product fails, the failure of the function is automatically recovered within a certain time without repairing;
j. failure caused by operating repair procedure: failure due to improper procedures of operation, maintenance, repair provided by the manufacturer.
The subordinate failures refer to the inclusion failures caused directly or indirectly by other failures in the sample, or failures caused by failures of test equipment, instruments, meters and the like, and generally comprise:
misuse failure: failure of the test specimen due to the application of more than specified stress (including improper stress level, improper installation, and trial operator's mistake);
user responsibility fails: failure due to equipment, operation, maintenance repair procedures provided by the user;
failure caused by limited life components: components having a prescribed lifetime have failed due to their operating time exceeding their prescribed replacement period but not being replaced.
Further, the following data in the statistical test:
TABLE 1 long-term operational reliability test data
| Total duration of device operation | Total duration (observation time) for long-term operation reliability test of device |
| Number and cause of device failures | The failure times (according to the statistics of the unit elements) of the device in the long-term operation reliability test |
| Daily operating conditions of the device | Daily operating conditions in a long-term operating reliability test device |
| Device validity check condition | Device validity check condition in long-term operation reliability test |
Step 102, determining the average fault-free time of the cable channel environment sensing monitoring device according to the failure times of each unit element and the total test time;
optionally, determining the average failure-free time of the cable channel environment sensing monitoring device according to the failure times of each unit element and the total test time comprises the following steps:
determining the failure rate of each unit element according to the failure times of each unit element and the total test time;
calculating the reliability of each unit element according to the failure rate of each unit element;
calculating the reliability of the parallel structure according to the reliability of all unit elements of the parallel structure and a pre-constructed reliability model of the parallel structure;
calculating the reliability of the series structure according to the reliability of all unit elements of the series structure and a pre-constructed reliability model of the series structure;
calculating the total reliability of the cable channel environment sensing and monitoring device according to the reliability of the parallel structure and the reliability of the serial structure;
and calculating the average non-fault time of the cable channel environment sensing monitoring device according to the total reliability and the pre-constructed average non-fault time model.
Optionally, the reliability calculation formula is:
R i (t)＝e -λt
wherein R is i (t) is the reliability of the ith unit element, λ is the failure rate, λ=the number of failures/total test time, and t is the test time.
Optionally, the parallel structure reliability model is:
wherein R is j (t) the reliability of the jth unit element in the parallel structure, and n is the number of unit elements in the parallel structure;
the series structure reliability model is:
wherein R is k And (t) is the reliability of the kth unit element in the series structure, and m is the number of unit elements in the series structure.
Optionally, the calculation formula of the average failure free time is:
MTBF＝1/((1-R total (S) ))
R Total = R A (t)*R B (t)
Wherein R is Total (S) For total reliability, MTBF is mean time to failure, R B (t) is the reliability of the series structure, R A And (t) is the reliability of the parallel structure.
Specifically, a mathematical model of the computational reliability R is built from the influence of the unit elements of the cable channel environmental awareness monitoring device on the overall device. Reliability models are mainly divided into series models and parallel models. In the series model, a single element unit fails, which can cause the entire system to fail; in the parallel model, the occurrence of a problem with a single element unit does not have a large influence on the system. According to the working process of the cable channel environment sensing monitoring device, whether elements are connected in series or in parallel can be seen, and the establishment of a reliability model is determined.
Further, the reliability of the elements of the series structure and the reliability of the elements of the parallel structure are represented by R B (t) and R A (t) the elements of the two structures form the whole device and also act as a series structure, so that the overall reliability R of the whole device can be deduced Total (S) . R is R Total (S) Substituting the average failure-free time into a calculation formula of the average failure-free time, calculating the average failure-free time of the cable channel environment sensing device, and then grading the operation performance of the device by combining the related data collected in the long-term operation reliability test.
In addition, the relevant data collected in the long-term operation reliability test of the cable channel environment sensing monitoring device are processed and then imported into a mathematical model, and the Mean Time Between Failure (MTBF) of each unit is calculated and used for counting the performance of each unit element.
Step 103, determining the grade score of the cable channel environment sensing monitoring device according to the average fault-free time, the failure times of the serial structure and the failure times of the parallel structure;
optionally, the calculation formula of the grade score is:
W＝(w 1 +w 2 +w 3 )/0.05
wherein w is 1 、w 2 、w 3 The method is characterized in that the method is a result obtained by multiplying the score of the cable channel environment sensing device according to the rating standard by the weight, wherein the weight of the average no-fault time is 50%, the weight of the failure times of the serial structure is 30%, the weight of the failure times of the parallel structure is 20%, and the score of the rating standard is 1-5.
Step 104, determining the performance state of the cable channel environment sensing monitoring device according to the grade scores.
Optionally, determining the performance state of the cable channel environmental awareness monitoring device according to the grade score includes:
under the condition that the grade score is less than 0-60 minutes, judging that the performance state of the cable passage environment sensing monitoring device is unqualified;
under the condition that the grade score is greater than or equal to 60 minutes and less than 80 minutes, judging that the performance state of the cable channel environment sensing monitoring device is good;
in the case where the class score is 80 points or more and 100 points or less, it is determined that the performance state of the cable passage environmental perception monitoring device is excellent.
Specifically, a performance grade evaluation segmentation table is prepared according to the average failure-free time and the failure times, and the average failure-free time and the failure times of each class of the cable channel environment sensing monitoring device are compared for grading.
TABLE 2 Performance rating criteria comparison Table
Further, the obtained corresponding scores are calculated and accumulated according to the weight of the rating standard, and the final rating of the operation performance of the cable channel environment sensing monitoring device is obtained by dividing the obtained corresponding scores by the defined correction value.
According to the calculation result of W, the evaluation grade is further set as [0,60 ] that the long-term running performance is unqualified, [60,80 ] that the long-term running performance is good, and [80,100] that the long-term running performance is excellent.
The method for analyzing the operation performance of the cable channel environment sensing monitoring device can automatically record long-term operation reliability data, calculate reliability parameters after the test is finished, and give out performance evaluation results and device optimization suggestions of the cable channel environment sensing monitoring device by comparing performance evaluation indexes, or can give out corresponding indexes, parameters and the like after the system is manually imported with a data account in a specified format.
The application has the following beneficial effects:
a) The environmental monitoring precision is improved: the invention can improve the precision of the environmental monitoring of the cable channel, including parameters such as temperature, humidity, gas concentration and the like. The method is helpful for timely finding out environment abnormality and ensuring that the cable and related equipment are in a safe working state;
b) The stability of the device increases: according to the invention, the stability of the cable channel environment sensing monitoring device can be increased, and unnecessary shutdown and maintenance caused by device faults are reduced;
c) Maintenance requirements are reduced: the invention can reduce the maintenance requirement of the cable channel environment sensing monitoring device, reduce the operation cost, prolong the service life of the device and reduce the frequency of manual intervention;
d) Data recording and analysis: according to the invention, the cable channel environment sensing monitoring device can more effectively record, store and analyze the monitoring data, and is helpful for identifying the trend and mode of potential problems;
e) The power failure risk is reduced: by finding the environmental problem of the cable channel in advance, the invention can help to reduce the power failure risk of the power system and improve the usability and stability of the power system;
f) Environmental protection benefit: the invention is beneficial to reducing the faults and power failure of the power system, which is beneficial to reducing the requirements on emergency standby power generation and high-energy consumption equipment, thereby reducing energy waste and carbon emission;
g) The technical innovation promotes that: by introducing innovative technology, the invention is helpful to promote the technical progress in the field of cable channel environment perception monitoring, and improves the standards and performances in the field.
Exemplary apparatus
Fig. 3 is a schematic structural diagram of an operation performance analysis device of a cable channel environment sensing monitoring device according to an exemplary embodiment of the present invention. As shown in fig. 3, the apparatus 300 includes:
the recording module 310 is configured to record test data of a reliability test performed by the cable channel environment sensing and monitoring device for a predetermined time, and count the failure times of each unit element of the cable channel environment sensing and monitoring device, where the cable channel environment sensing and monitoring device includes a parallel structure and a serial structure;
a first determining module 320, configured to determine an average failure-free time of the cable channel environment sensing and monitoring device according to the failure times of each unit element and the total test time;
a second determining module 330, configured to determine a class score of the cable channel environmental awareness monitoring device according to the average failure time, the failure times of the serial structure, and the failure times of the parallel structure;
a third determining module 340 is configured to determine a performance status of the cable channel environmental awareness monitoring device according to the grade score.
Optionally, the parallel structure includes: humiture unit, water level unit, gas monitoring unit, visual prison clapping ball machine unit, well lid unit, the tandem structure includes: the device comprises a data processing unit, a power supply unit and a communication unit.
Optionally, the first determining module 320 includes:
the first determining submodule is used for determining the failure rate of each unit element according to the failure times of each unit element and the total test time;
a first calculation sub-module for calculating the reliability of each unit element according to the failure rate of each unit element;
the second calculation sub-module is used for calculating the reliability of the parallel structure according to the reliability of all unit elements of the parallel structure and a pre-constructed reliability model of the parallel structure;
a third calculation sub-module for calculating the reliability of the series structure according to the reliability of all the unit elements of the series structure and a pre-constructed reliability model of the series structure;
the fourth computing sub-module is used for computing the total reliability of the cable channel environment sensing and monitoring device according to the reliability of the parallel structure and the reliability of the serial structure;
and the fifth calculation sub-module is used for calculating the average non-fault time of the cable channel environment sensing monitoring device according to the total reliability and the pre-constructed average non-fault time model.
Optionally, the reliability calculation formula is:
R i (t)＝e -λt
wherein R is i (t) is the reliability of the ith unit element, λ is the failure rate, λ=the number of failures/total test time, and t is the test time.
Optionally, the parallel structure reliability model is:
wherein R is j (t) the reliability of the jth unit element in the parallel structure, and n is the number of unit elements in the parallel structure;
the series structure reliability model is:
wherein R is k And (t) is the reliability of the kth unit element in the series structure, and m is the number of unit elements in the series structure.
Optionally, the calculation formula of the average failure free time is:
MTBF＝1/((1-R total (S) ))
R Total = R A (t)*R B (t)
Wherein R is Total (S) For total reliability, MTBF is mean time to failure, R B (t) is the reliability of the series structure, R A And (t) is the reliability of the parallel structure.
Optionally, the calculation formula of the grade score is:
W＝(w 1 +w 2 +w 3 )/0.05
wherein w is 1 、w 2 、w 3 For cable channelsThe environment sensing device multiplies the obtained result by the weight according to the score of the rating standard, wherein the weight of the average failure time is 50%, the weight of the failure times of the serial structure is 30%, the weight of the failure times of the parallel structure is 20%, and the score of the rating standard is 1-5.
Optionally, the third determining module 340 includes:
the first judging submodule is used for judging that the performance state of the cable channel environment sensing monitoring device is unqualified under the condition that the grade score is smaller than 0-60 minutes;
the second judging submodule is used for judging that the performance state of the cable channel environment sensing monitoring device is good under the condition that the grade score is more than or equal to 60 minutes and less than 80 minutes;
and the third judging submodule is used for judging that the performance state of the cable channel environment sensing monitoring device is excellent under the condition that the grade score is more than or equal to 80 and less than or equal to 100.
Exemplary electronic device
Fig. 4 is a structure of an electronic device provided in an exemplary embodiment of the present invention. As shown in fig. 4, the electronic device 40 includes one or more processors 41 and memory 42.
The processor 41 may be a Central Processing Unit (CPU) or other form of processing unit having data processing and/or instruction execution capabilities, and may control other components in the electronic device to perform desired functions.
Memory 42 may include one or more computer program products that may include various forms of computer-readable storage media, such as volatile memory and/or non-volatile memory. The volatile memory may include, for example, random Access Memory (RAM) and/or cache memory (cache), and the like. The non-volatile memory may include, for example, read Only Memory (ROM), hard disk, flash memory, and the like. One or more computer program instructions may be stored on the computer readable storage medium that may be executed by the processor 41 to implement the methods of the software programs of the various embodiments of the present invention described above and/or other desired functions. In one example, the electronic device may further include: an input device 43 and an output device 44, which are interconnected by a bus system and/or other forms of connection mechanisms (not shown).
In addition, the input device 43 may also include, for example, a keyboard, a mouse, and the like.
The output device 44 can output various information to the outside. The output device 44 may include, for example, a display, speakers, a printer, and a communication network and remote output apparatus connected thereto, etc.
Of course, only some of the components of the electronic device relevant to the present invention are shown in fig. 4 for simplicity, components such as buses, input/output interfaces, etc. being omitted. In addition, the electronic device may include any other suitable components depending on the particular application.
Exemplary computer program product and computer readable storage Medium
In addition to the methods and apparatus described above, embodiments of the invention may also be a computer program product comprising computer program instructions which, when executed by a processor, cause the processor to perform steps in a method according to various embodiments of the invention described in the "exemplary methods" section of this specification.
The computer program product may write program code for performing operations of embodiments of the present invention in any combination of one or more programming languages, including an object oriented programming language such as Java, C++ or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device, partly on a remote computing device, or entirely on the remote computing device or server.
Furthermore, embodiments of the invention may also be a computer-readable storage medium, having stored thereon computer program instructions, which when executed by a processor, cause the processor to perform steps in a method according to various embodiments of the invention described in the "exemplary method" section of the description above.
The computer readable storage medium may employ any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. The readable storage medium can include, for example, but is not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the readable storage medium would include the following: an electrical connection having one or more wires, a portable disk, a hard disk, random Access Memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
The basic principles of the present invention have been described above in connection with specific embodiments, however, it should be noted that the advantages, benefits, effects, etc. mentioned in the present invention are merely examples and not intended to be limiting, and these advantages, benefits, effects, etc. are not to be considered as essential to the various embodiments of the present invention. Furthermore, the specific details disclosed herein are for purposes of illustration and understanding only, and are not intended to be limiting, as the invention is not necessarily limited to practice with the above described specific details.
In this specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different manner from other embodiments, so that the same or similar parts between the embodiments are mutually referred to. For system embodiments, the description is relatively simple as it essentially corresponds to method embodiments, and reference should be made to the description of method embodiments for relevant points.
The block diagrams of the devices, systems, apparatuses, systems according to the present invention are merely illustrative examples and are not intended to require or imply that the connections, arrangements, configurations must be made in the manner shown in the block diagrams. As will be appreciated by one of skill in the art, the devices, systems, apparatuses, systems may be connected, arranged, configured in any manner. Words such as "including," "comprising," "having," and the like are words of openness and mean "including but not limited to," and are used interchangeably therewith. The terms "or" and "as used herein refer to and are used interchangeably with the term" and/or "unless the context clearly indicates otherwise. The term "such as" as used herein refers to, and is used interchangeably with, the phrase "such as, but not limited to.
The method and system of the present invention may be implemented in a number of ways. For example, the methods and systems of the present invention may be implemented by software, hardware, firmware, or any combination of software, hardware, firmware. The above-described sequence of steps for the method is for illustration only, and the steps of the method of the present invention are not limited to the sequence specifically described above unless specifically stated otherwise. Furthermore, in some embodiments, the present invention may also be embodied as programs recorded in a recording medium, the programs including machine-readable instructions for implementing the methods according to the present invention. Thus, the present invention also covers a recording medium storing a program for executing the method according to the present invention.
It is also noted that in the systems, devices and methods of the present invention, components or steps may be disassembled and/or assembled. Such decomposition and/or recombination should be considered as equivalent aspects of the present invention. The previous description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these aspects will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other aspects without departing from the scope of the invention. Thus, the present invention is not intended to be limited to the aspects shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
The foregoing description has been presented for purposes of illustration and description. Furthermore, this description is not intended to limit embodiments of the invention to the form disclosed herein. Although a number of example aspects and embodiments have been discussed above, a person of ordinary skill in the art will recognize certain variations, modifications, alterations, additions, and subcombinations thereof.
Claims (13)
1. The method for analyzing the operation performance of the cable channel environment sensing and monitoring device is characterized by comprising the following steps of:
recording test data of a cable channel environment sensing monitoring device for performing a reliability test for a preset time, and counting the failure times of each unit element of the cable channel environment sensing monitoring device, wherein the cable channel environment sensing monitoring device comprises a parallel structure and a serial structure;
determining the average fault-free time of the cable channel environment sensing monitoring device according to the failure times of each unit element and the total test time;
determining a grade score of the cable channel environment sensing monitoring device according to the average fault-free time, the failure times of the serial structure and the failure times of the parallel structure;
and determining the performance state of the cable channel environment perception monitoring device according to the grade scores.
2. The method of claim 1, wherein the parallel structure comprises: humiture unit, water level unit, gas monitoring unit, visual prison racket unit, well lid unit, the tandem structure includes: the device comprises a data processing unit, a power supply unit and a communication unit.
3. The method of claim 1, wherein determining the average time to failure of the cable pathway environmental awareness monitoring device based on the number of failures of each unit element and the total time tested, comprises:
determining the failure rate of each unit element according to the failure times of each unit element and the total test time;
calculating the reliability of each unit element according to the failure rate of each unit element;
calculating the reliability of the parallel structure according to the reliability of all unit elements of the parallel structure and a pre-constructed reliability model of the parallel structure;
calculating the reliability of the series structure according to the reliability of all unit elements of the series structure and a pre-constructed reliability model of the series structure;
calculating the total reliability of the cable channel environment sensing and monitoring device according to the reliability of the parallel structure and the reliability of the serial structure;
and calculating the average non-fault time of the cable channel environment sensing monitoring device according to the total reliability and a pre-constructed average non-fault time model.
4. A method according to claim 3, wherein the reliability calculation formula is:
R i (t)＝e -λt
wherein R is i (t) is the reliability of the ith unit element, λ is the failure rate, λ=the number of failures/total test time, and t is the test time.
5. A method according to claim 3, wherein the parallel structure reliability model is:
wherein R is j (t) the reliability of the jth unit element in the parallel structure, and n is the number of unit elements in the parallel structure;
the series structure reliability model is as follows:
wherein R is k (t) is a series connectionThe reliability of the kth unit element in the structure is that m is the number of unit elements in the series structure.
6. A method according to claim 3, wherein the mean time between failure is calculated by the formula:
MTBF＝1/((1-R total (S) ))
R Total (S) ＝R A (t)*R B (t)
Wherein R is Total (S) For total reliability, MTBF is mean time to failure, R B (t) is the reliability of the series structure, R A And (t) is the reliability of the parallel structure.
7. The method of claim 1, wherein the class score is calculated by the formula:
W＝(w 1 +w 2 +w 3 )/0.05
wherein w is 1 、w 2 、w 3 The method is characterized in that the method is a result obtained by multiplying the output score of the rating standard by the weight of the cable channel environment sensing device, wherein the weight of the average no-fault time is 50%, the weight of the failure times of the serial structure is 30%, the weight of the failure times of the parallel structure is 20%, and the score of the rating standard is 1-5.
8. The method of claim 1, wherein determining the performance status of the cable pathway environmental awareness monitoring device based on the grade score comprises:
under the condition that the grade score is less than 0-60 minutes, judging that the performance state of the cable passage environment perception monitoring device is unqualified;
judging that the performance state of the cable passage environment sensing and monitoring device is good under the condition that the grade score is more than or equal to 60 minutes and less than 80 minutes;
and in the case that the grade score is greater than or equal to 80 and less than or equal to 100, determining that the performance state of the cable passage environment-awareness monitoring device is excellent.
9. An operational performance analysis device for a cable channel environment sensing monitoring device, comprising:
the system comprises a recording module, a monitoring module and a control module, wherein the recording module is used for recording test data of a cable channel environment sensing monitoring device for performing a running reliability test for a preset time and counting the failure times of each unit element of the cable channel environment sensing monitoring device, and the cable channel environment sensing monitoring device comprises a parallel structure and a serial structure;
the first determining module is used for determining the average fault-free time of the cable channel environment sensing monitoring device according to the failure times of each unit element and the total test time;
the second determining module is used for determining the grade score of the cable channel environment sensing monitoring device according to the average no-fault time, the failure times of the serial structure and the failure times of the parallel structure;
and the third determining module is used for determining the performance state of the cable channel environment perception monitoring device according to the grade scores.
10. The apparatus of claim 9, wherein the parallel structure comprises: humiture unit, water level unit, gas monitoring unit, visual prison racket unit, well lid unit, the tandem structure includes: the device comprises a data processing unit, a power supply unit and a communication unit.
11. The apparatus of claim 9, wherein the first determining module comprises:
the first determining submodule is used for determining the failure rate of each unit element according to the failure times of each unit element and the total test time;
a first calculation sub-module for calculating the reliability of each unit element according to the failure rate of each unit element;
the second calculation sub-module is used for calculating the reliability of the parallel structure according to the reliability of all unit elements of the parallel structure and a pre-constructed reliability model of the parallel structure;
a third calculation sub-module for calculating the reliability of the series structure according to the reliability of all the unit elements of the series structure and a pre-constructed reliability model of the series structure;
a fourth calculation sub-module, configured to calculate, according to the reliability of the parallel structure and the reliability of the serial structure, a total reliability of the cable channel environment sensing and monitoring device;
and a fifth calculation sub-module, configured to calculate the average no-fault time of the cable channel environment sensing and monitoring device according to the total reliability and a pre-constructed average no-fault time model.
12. A computer readable storage medium, characterized in that the storage medium stores a computer program for executing the method of any of the preceding claims 1-8.
13. An electronic device, the electronic device comprising:
a processor;
a memory for storing the processor-executable instructions;
the processor is configured to read the executable instructions from the memory and execute the instructions to implement the method of any of the preceding claims 1-8.
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