CN117273528A - Highway electromechanical system health index evaluation method and system - Google Patents
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Abstract
The invention discloses a highway electromechanical system health index evaluation method and system, which belong to the technical field of intelligent traffic systems and highway electromechanical system informatization, and specifically comprise the following steps: collecting highway electromechanical system health related data, including equipment operation records, maintenance and maintenance records, fault and accident records, preprocessing the collected highway electromechanical system health related data, processing abnormal values and missing values, selecting health evaluation indexes and parameters, calculating weights and health indexes of the evaluation indexes and parameters, evaluating the health condition of the highway electromechanical system according to the evaluation results, and generating a highway electromechanical system health evaluation report. By evaluating the health of the electromechanical equipment of the expressway, the running condition of the whole system can be conveniently mastered, data support is provided for the operation, maintenance and replacement decision of the electromechanical system of the expressway, and the system has strong engineering application value.
Description
Technical Field
The invention belongs to the technical field of intelligent traffic systems and highway electromechanical system informatization, and particularly relates to a highway electromechanical system health index evaluation method and system.
Background
The expressway electromechanical equipment has various types, the normal operation of the expressway electromechanical equipment has great influence on traffic capacity and traffic safety, and the expressway electromechanical equipment inevitably has the phenomenon of reduced usability, economy and the like along with the increase of service life and has non-negligible influence on the operation of a system. In the maintenance management work of the electromechanical system of the expressway, the maintenance of the electromechanical equipment takes up most of the energy of the management work, and the urgent requirement of the informatization intelligent development of the electromechanical system of the expressway is reflected, but the research on the health system and evaluation of the electromechanical equipment is less at present.
The Chinese patent with the publication number CN107194149B discloses a highway electromechanical system health index assessment method, which comprises the following steps: step 1: establishing a basic concept of health index of the electromechanical equipment of the expressway; step 2: constructing a hierarchical composition structure of the highway electromechanical system; step 3: evaluating and correcting a single-equipment health index based on an aging index model; step 4: and quantitatively evaluating health indexes of each level of the highway composition structure based on an analytic hierarchy process. By adopting the technical scheme of the invention, a plurality of devices of the electromechanical system can be effectively managed, and the method has important significance for effectively distributing the operation and maintenance funds of the devices.
The Chinese patent with the application publication number of CN114239377A discloses a method, a system and a storage medium for evaluating the health state of urban rail electromechanical equipment, wherein the evaluation method comprises the following steps: s1, acquiring detection data of electromechanical equipment; s2, preprocessing the acquired data; s3, training the Vae-lstm model, and acquiring a reconstruction error sequence of the equipment at each moment; s4, building a device health state evaluation model, and calculating a device health index at the current moment according to on-line device operation data; s5, outputting the evaluation grade, the health state grade and the running state description of the equipment according to the equipment health index. The beneficial effects of the invention are as follows: according to the invention, the Vae-lstm model is trained by using the equipment health state data, the model parameters are optimized, the reconstruction errors are obtained, and the equipment health state assessment model is constructed according to the reconstruction errors, so that the defects in the background technology are overcome, and the health state of the equipment can be accurately captured.
The defects of the above patents: the parameters of the health index are considered to be incomplete, only ageing factors are considered, and the health influence of the failure and maintenance time of the electromechanical equipment of the highway and the cost on the electromechanical equipment of the highway is not considered.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a highway electromechanical system health index evaluation method and system, which are used for collecting highway electromechanical system health related data, preprocessing the collected highway electromechanical system health related data, selecting health evaluation indexes and parameters, calculating weights and health indexes of the evaluation indexes and parameters, evaluating the health condition of the highway electromechanical system according to the evaluation result, generating a highway electromechanical system health evaluation report, conveniently grasping the running condition of the whole system by evaluating the highway electromechanical equipment health, providing data support for the operation, maintenance and replacement decision of the highway electromechanical system, and having strong engineering application value.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the highway electromechanical system health index evaluation method comprises the following steps:
step S1: collecting highway electromechanical system health related data;
step S2: preprocessing the collected highway electromechanical system health related data;
step S3: selecting health evaluation indexes and parameters, and calculating weights and health indexes of the evaluation indexes and the parameters;
step S4: and according to the evaluation result, evaluating the health condition of the expressway electromechanical system and generating an operation and maintenance strategy of the expressway electromechanical system.
Specifically, the data related to the health of the electromechanical system of the highway in the step S1 includes: equipment operation record, maintenance and service record, fault and accident record.
Specifically, the preprocessing in step S2 includes: data cleaning, abnormal value processing and missing value correction.
Specifically, the health evaluation indexes and parameters in the step S3 include: failure rate of the highway electromechanical equipment, aging rate of the highway electromechanical equipment, average maintenance time and average maintenance cost.
Specifically, the specific steps of the step S3 are as follows:
step S301: setting the operation period of the electromechanical system of the expressway as n and the failure rate of the electromechanical equipment of the expressway as P gz Calculating a fault rate influence factor of the electromechanical equipment of the expressway, wherein the calculation formula is as follows:wherein Y is gz Expressing the fault rate influence factor of the electromechanical equipment of the expressway;
step S302: calculating an aging rate influence factor of the electromechanical equipment of the expressway, wherein the calculation formula is as follows: y is Y lh ＝e -Sg/B+1 Wherein Y is lh The aging rate influence factor of the expressway electromechanical equipment is represented, B represents the maintenance times of the expressway electromechanical equipment, S represents the use times of the expressway electromechanical equipment, and g represents the times of failure of the expressway electromechanical equipment;
step S303: setting the maintenance times as W, the maintenance time and the maintenance cost as W, and W= { (t) 1 ,c 1 ),(t 2 ,c 2 ),...,(t w ,c w ) And (3) calculating the maintenance influence factors of the electromechanical equipment of the expressway, wherein the calculation formula is as follows:wherein t is z Representing a standard repair time for repairing the z-th time, c z Representing the standard maintenance cost of the z-th maintenance, y wx Representing the maintenance influence factor of the electromechanical equipment of the expressway, t i Representing the maintenance time of the ith maintenance, c i Representing the maintenance cost of the ith maintenance;
step S304: the health index of the electromechanical system of the expressway is evaluated, and the evaluation calculation formula is as follows:
ZS＝ZS 0 ×Y gz Y lh Y wx ，
wherein ZS represents the health index of the highway electromechanical system when the system operates for n years, ZS 0 Representing an initial health index of the highway electromechanical system;
step S305: and classifying the health states corresponding to the current health indexes and generating operation and maintenance strategies.
Specifically, the health status and the operation and maintenance policy corresponding to the current health index in step S305 include:
when ZS is more than or equal to 0 and less than or equal to 20, the mechanical equipment of the highway is in a pathological state, the technical performance of the power distribution equipment is seriously defective, the requirements of operation standards cannot be met, the system is threatened to run safely and stably by continuing to run, replacement is urgently needed, when ZS is more than or equal to 20 and less than or equal to 40, the mechanical equipment of the highway is in an abnormal state, the power distribution equipment can perform functions within the specified standards barely, when ZS is more than or equal to 40 and less than or equal to 60, the mechanical equipment of the highway is in a paying attention state, the working condition of the power distribution equipment is basically intact, the functions under the specified conditions can be performed, when ZS is more than or equal to 60 and less than or equal to 80, the mechanical equipment of the highway is in a sub-healthy state, the functions and performances of the power distribution equipment are intact, when ZS is more than or equal to 80 and less than or equal to 100, the performances of the power distribution equipment are up to standard, and the foundation of the equipment is good.
An expressway electro-mechanical system health index evaluation system, comprising:
the system comprises a communication module, a monitoring module, a charging module, a power supply and distribution module, a health evaluation module and an operation and maintenance module;
the communication module is used for providing communication among the monitoring module, the charging module and the power supply and distribution module;
the monitoring module is used for monitoring the state of the electromechanical equipment of the expressway and the running state of the vehicle on the expressway;
the charging module is used for charging high-speed passing fees of the ECT channel and the mixed channel vehicles;
the power supply and distribution module is used for providing power for the highway electromechanical system;
the health evaluation module is used for evaluating the health index of the expressway electromechanical system;
the operation and maintenance module is used for providing operation and maintenance advice according to the health index of the current highway electromechanical system.
Specifically, the monitoring module includes: the system comprises an expressway electromechanical equipment monitoring unit and a vehicle monitoring unit;
the monitoring unit of the highway electromechanical equipment is used for monitoring the running state of the highway electromechanical equipment;
the vehicle monitoring unit is used for monitoring the running state of the expressway vehicle.
Specifically, the charging module includes: toll booths, ETC lanes, mixed lanes and accessory facility units;
the toll station is used for collecting the toll of passing vehicles;
the ETC lane is used for a high-speed toll gate channel of the vehicle ETC;
the mixed lane is used for a high-speed toll gate channel of a vehicle ETC and a common vehicle;
the auxiliary facility units comprise traffic safety facilities, traffic management facilities, protection facilities, service facilities and greening facilities and are used for assisting in collecting the passing fee for passing vehicles.
Specifically, the power supply and distribution module includes: a charging power supply unit and a monitoring power supply unit;
the charging power supply unit is used for providing power for the charging module;
the monitoring power supply unit is used for providing power for the monitoring module.
The highway electromechanical device includes: basic perception equipment, all-weather passing equipment, lane-level service equipment, vehicle-road cooperative equipment and intelligent service area equipment,
the basic perception class device comprises: road sensing systems (settlement gauge, slope displacement gauge), bridge sensing systems (load sensor, structure monitoring sensor), tunnel sensing systems (structure deformation sensor, leakage monitor, CO monitoring, illumination monitoring, wind speed and direction detector, fire detector), traffic sensing systems (video camera, radar) and meteorological sensing systems (visibility detector, temperature and humidity sensor, ice and snow detector),
the all-weather passing equipment comprises: extreme weather induction systems (active luminous signs, intelligent ruthenium, marker lights) and road snow and ice melting systems (intelligent ice melting equipment, automatic spraying),
the lane-level service apparatus includes: an induction system (lane indication mark, information board) and an early warning system (directional sound equipment, stroboscopic prep device),
the vehicle road cooperation device includes: a communication system (RSU), a computing system (edge calculator), a perception system (laser radar, millimeter wave radar, video camera), a positioning system (Beidou) and a marking system (electronic marking ),
the intelligent service area device includes: parking system (parking guidance sign, parking stall detector, traffic flow detection facility, intelligent charging stake), lighting system (lighting fixture, lighting control), service system (wireless AP, toilet position monitoring device, toilet position guidance device, people stream statistics device, integrated inquiry machine).
Compared with the prior art, the invention has the beneficial effects that:
1. the invention provides a highway electromechanical system health index evaluation system, and optimizes and improves the structure, the operation steps and the flow, and the system has the advantages of simple flow, low investment and operation cost and low production and working costs.
2. The invention provides a highway electromechanical system health index evaluation method, which is used for collecting highway electromechanical system health related data, preprocessing the collected highway electromechanical system health related data, selecting health evaluation indexes and parameters, calculating weights and health indexes of the evaluation indexes and the parameters, evaluating the health condition of the highway electromechanical system according to the evaluation result, generating a highway electromechanical system health evaluation report, conveniently grasping the running condition of the whole system by evaluating the health of highway electromechanical equipment, providing data support for operation, maintenance and replacement decisions of the highway electromechanical system, and having strong engineering application value.
3. The invention provides a highway electromechanical system health index evaluation method, which follows the principles of comprehensiveness, operability, scientificity and the like, comprehensively analyzes influence factors of the operation state of highway electromechanical equipment and interaction among the influence factors, reasonably selects information of various data types related to the operation state of the equipment, and establishes a reasonable and feasible multi-level comprehensive evaluation framework of the overall health index of the highway electromechanical system.
Drawings
FIG. 1 is a flow chart of a highway electromechanical system health index evaluation method according to the present invention;
FIG. 2 is a grid map of the method for evaluating the health index of the electromechanical system of the present invention;
FIG. 3 is a schematic diagram of a highway electromechanical system health index evaluation system according to the present invention;
Detailed Description
In order that the technical means, the creation characteristics, the achievement of the objects and the effects of the present invention may be easily understood, it should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "a", "an", "the" and "the" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The invention is further described below in conjunction with the detailed description.
Example 1
Referring to fig. 1-3, an embodiment of the present invention is provided:
the highway electromechanical system health index evaluation method comprises the following steps:
step S1: collecting highway electromechanical system health related data;
step S2: preprocessing the collected highway electromechanical system health related data;
step S3: selecting health evaluation indexes and parameters, and calculating weights and health indexes of the evaluation indexes and the parameters;
step S4: and according to the evaluation result, evaluating the health condition of the expressway electromechanical system and generating an operation and maintenance strategy of the expressway electromechanical system.
The highway electromechanical system health related data in step S1 includes: equipment operation record, maintenance and service record, fault and accident record.
The preprocessing in step S2 includes: data cleaning, abnormal value processing and missing value correction.
The health assessment indicators and parameters in step S3 include: failure rate of the highway electromechanical equipment, aging rate of the highway electromechanical equipment, average maintenance time and average maintenance cost.
The specific steps of the step S3 are as follows:
step S301: setting the operation period of the electromechanical system of the expressway as n and the failure rate of the electromechanical equipment of the expressway as P gz Calculating a fault rate influence factor of the electromechanical equipment of the expressway, wherein the calculation formula is as follows:wherein Y is gz Expressing the fault rate influence factor of the electromechanical equipment of the expressway;
step S302: calculating an aging rate influence factor of the electromechanical equipment of the expressway, wherein the calculation formula is as follows: y is Y lh ＝e -Sg/B+1 Wherein Y is lh The aging rate influence factor of the expressway electromechanical equipment is represented, B represents the maintenance times of the expressway electromechanical equipment, S represents the use times of the expressway electromechanical equipment, and g represents the times of failure of the expressway electromechanical equipment;
step S303: setting the maintenance times as W, the maintenance time and the maintenance cost as W, and W= { (t) 1 ,c 1 ),(t 2 ,c 2 ),...,(t w ,c w ) And (3) calculating the maintenance influence factors of the electromechanical equipment of the expressway, wherein the calculation formula is as follows:wherein t is z Representing a standard repair time for repairing the z-th time, c z Standard repair cost indicating repair z-th time，y wx Representing the maintenance influence factor of the electromechanical equipment of the expressway, t i Representing the maintenance time of the ith maintenance, c i Representing the maintenance cost of the ith maintenance;
step S304: the health index of the electromechanical system of the expressway is evaluated, and the evaluation calculation formula is as follows:
ZS＝ZS 0 ×Y gz Y lh Y wx ，
wherein ZS represents the health index of the highway electromechanical system when the system operates for n years, ZS 0 Representing an initial health index of the highway electromechanical system;
step S305: and classifying the health states corresponding to the current health indexes and generating operation and maintenance strategies.
The health status, operation and maintenance strategies corresponding to the current health index in step S305 include:
when ZS is more than or equal to 0 and less than or equal to 20, the electromechanical equipment of the highway is in a pathological state, the probability of fault occurrence is high, the technical performance of the power distribution equipment is seriously defective, the requirements of operation standards cannot be met, the safe and stable operation of the system is threatened by continuous operation, and replacement is urgently needed.
When ZS is more than 20 and less than or equal to 40, the electromechanical equipment of the highway is in an abnormal state, the probability of fault occurrence is higher, the power distribution equipment can barely execute the functions within the specified standard, the performance of the power distribution equipment is seriously degraded, the comprehensive influence degree on the equipment is higher, the overhaul is needed,
when ZS is more than 40 and less than or equal to 60, the electromechanical equipment of the highway is in a paying attention state, the working condition of the power distribution equipment is basically perfect in the probability of fault occurrence, the function under the specified condition can be executed, but part of the performance is slightly degraded, the comprehensive influence degree on the equipment is small, the maintenance is needed,
when ZS is more than 60 and less than or equal to 80, the highway electromechanical equipment is in sub-health state, the probability of fault occurrence is lower, the power distribution equipment and various functions and performances are good, the technical condition is slightly lower than the health state, the specified standard operation can still be satisfied, the overhaul mode is inspection,
when ZS is more than 80 and less than or equal to 100, the highway electromechanical equipment is in a healthy state, the probability of fault occurrence is low, each performance of the power distribution equipment reaches the standard, the equipment foundation is good, the technical performance is good, the operation working condition is stable, the external environment risk can be resisted, and the overhaul mode is inspection.
Another method of health index assessment: factors considered are: 1) External factors, meteorological factors u 11 The outdoor device is mainly influenced by extreme weather, and the outdoor device (solar battery and outdoor sensor) is greatly influenced by the extreme weather on the performance of the device, but has low influence on indoor devices (such as a core switch) and the like. Adjacent facility factor u 12 The facility dense area has more maintenance and construction activities, is easy to interfere and damage equipment, and affects the stability of the equipment; 2) Device self factor, effective lifetime index u 21 The traditional effective life refers to the natural life of the equipment, the effective life of the equipment is ignored by the index, and therefore, the effective life index is provided, for example, the indicator lamp only needs to work in severe weather such as cluster fog, etc., the working life of the part of time is calculated as the effective life, and the brand is the same as the coefficient u 22 The problem that the system cannot work well together can occur among different brands of equipment, and the failure index u 23 The ratio of the period failure time during which the device should operate to the period of time during which the device should operate; 3) Maintenance factor, maintenance frequency u of the apparatus 31 The maintenance frequency directly affects the effective operating time of the equipment, the equipment update frequency u 32 With the development of technology, the updating of equipment often does not correspond to the natural service life of the equipment, but rather the technical service life of the equipment, and the updating frequency of equipment of different enterprises and different systems is different, which directly affects the working efficiency of the systems.
By means of fuzzy comprehensive evaluation, the health system of the electromechanical equipment of the expressway is evaluated, and the health state of the electromechanical equipment is divided into three types according to actual project conditions: health state, early warning state, state to be repaired. Corresponding expert scoring value intervals {80-100, 60-80,0-60}, wherein each expert scores each subsystem according to the operation influence factors of the electromechanical equipment, and then obtains an evaluation matrix R of each subsystem according to the final result, and N experts score maintenance factors of the outfield equipment of the monitoring system respectively，n 1 Bit expert scoring as v 1 ，n 2 Bit expert scoring as v 2 ，n 3 Bit expert scoring as v 3 The method comprises the steps of carrying out a first treatment on the surface of the The maintenance factor ambiguity membership matrix of the monitoring system outfield device is expressed as:constructing a weight matrix of each subsystem of the highway electromechanical equipment, and determining omega of each system of the highway electromechanical equipment according to the importance of the equipment e And weight ω of subsystem er E denotes the e-th system of the highway electro-mechanical device, and r denotes the r-th subsystem of the e-th system of the highway electro-mechanical device.
The e-th system health index calculation formula of the highway electromechanical equipment is as follows: b (B) e ＝ω e *R o The calculation formula of the health index of the r subsystem of the e-th system of the electromechanical equipment of the expressway is as follows: b (B) er ＝ω er *R o Judging the health state, early warning and maintenance according to the expert scoring membership matrix, wherein the expert scoring membership matrix is shown in table 1:
TABLE 1 expert scoring membership matrix
Example 2
Referring to fig. 3, another embodiment of the present invention is provided: an expressway electro-mechanical system health index evaluation system, comprising:
the system comprises a communication module, a monitoring module, a charging module, a power supply and distribution module, a health evaluation module and an operation and maintenance module;
the communication module is used for providing communication among the monitoring module, the charging module and the power supply and distribution module;
the monitoring module is used for monitoring the state of the electromechanical equipment of the expressway and the running state of the vehicle on the expressway;
the charging module is used for charging high-speed passing fees of the ECT channel and the mixed channel vehicles;
the power supply and distribution module is used for providing power for the highway electromechanical system;
the health evaluation module is used for evaluating the health index of the expressway electromechanical system;
the operation and maintenance module is used for providing operation and maintenance advice according to the health index of the current highway electromechanical system.
The monitoring module comprises: the system comprises an expressway electromechanical equipment monitoring unit and a vehicle monitoring unit;
the monitoring unit of the highway electromechanical equipment is used for monitoring the running state of the highway electromechanical equipment;
the vehicle monitoring unit is used for monitoring the running state of the expressway vehicle.
The charging module comprises: toll booths, ETC lanes, mixed lanes and accessory facility units;
the toll station is used for collecting the toll of passing vehicles;
the ETC lane is used for a high-speed toll gate channel of the vehicle ETC;
the mixed lane is used for a high-speed toll gate channel of a vehicle ETC and a common vehicle;
the auxiliary facility units comprise traffic safety facilities, traffic management facilities, protection facilities, service facilities and greening facilities and are used for assisting in collecting the passing fee for passing vehicles.
The power supply and distribution module includes: a charging power supply unit and a monitoring power supply unit;
the charging power supply unit is used for providing power for the charging module;
the monitoring power supply unit is used for providing power for the monitoring module.
The highway electromechanical device includes: basic perception equipment, all-weather passing equipment, lane-level service equipment, vehicle-road cooperative equipment and intelligent service area equipment,
the basic perception class device comprises: road sensing systems (settlement gauge, slope displacement gauge), bridge sensing systems (load sensor, structure monitoring sensor), tunnel sensing systems (structure deformation sensor, leakage monitor, CO monitoring, illumination monitoring, wind speed and direction detector, fire detector), traffic sensing systems (video camera, radar) and meteorological sensing systems (visibility detector, temperature and humidity sensor, ice and snow detector),
the all-weather passing equipment comprises: extreme weather induction systems (active luminous signs, intelligent ruthenium, marker lights) and road snow and ice melting systems (intelligent ice melting equipment, automatic spraying),
the lane-level service apparatus includes: an induction system (lane indication mark, information board) and an early warning system (directional sound equipment, stroboscopic prep device),
the vehicle road cooperation device includes: a communication system (RSU), a computing system (edge calculator), a perception system (laser radar, millimeter wave radar, video camera), a positioning system (Beidou) and a marking system (electronic marking ),
the intelligent service area device includes: parking system (parking guidance sign, parking stall detector, traffic flow detection facility, intelligent charging stake), lighting system (lighting fixture, lighting control), service system (wireless AP, toilet position monitoring device, toilet position guidance device, people stream statistics device, integrated inquiry machine).
It will be appreciated by those skilled in the art that embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present invention and the scope of the claims, which are all within the protection of the present invention.
Claims (10)
1. The highway electromechanical system health index evaluation method is characterized by comprising the following steps of:
step S1: collecting highway electromechanical system health related data;
step S2: preprocessing the collected highway electromechanical system health related data;
step S3: selecting health evaluation indexes and parameters, and calculating weights and health indexes of the evaluation indexes and the parameters;
step S4: and according to the evaluation result, evaluating the health condition of the expressway electromechanical system and generating an operation and maintenance strategy of the expressway electromechanical system.
2. The method for evaluating the health index of an expressway electro-mechanical system according to claim 1, wherein said data related to the health of the expressway electro-mechanical system in step S1 includes: equipment operation record, maintenance and service record, fault and accident record.
3. The method for evaluating the health index of an electromechanical system of an expressway according to claim 2, wherein the preprocessing in step S2 includes: data cleaning, abnormal value processing and missing value correction.
4. The method for evaluating health index of highway electromechanical system according to claim 3, wherein the health evaluation index and parameter in step S3 comprises: failure rate of the highway electromechanical equipment, aging rate of the highway electromechanical equipment, average maintenance time and average maintenance cost.
5. The method for evaluating the health index of an electromechanical system of an expressway according to claim 4, wherein the step S3 is specifically performed as follows:
step S301: setting the operation period of the electromechanical system of the expressway as n and the failure rate of the electromechanical equipment of the expressway as P gz Calculating a fault rate influence factor of the electromechanical equipment of the expressway, wherein the calculation formula is as follows:wherein Y is gz Indicating high speedThe fault rate influence factor of the road electromechanical equipment;
step S302: calculating an aging rate influence factor of the electromechanical equipment of the expressway, wherein the calculation formula is as follows:wherein Y is lh The aging rate influence factor of the expressway electromechanical equipment is represented, B represents the maintenance times of the expressway electromechanical equipment, S represents the use times of the expressway electromechanical equipment, and g represents the times of failure of the expressway electromechanical equipment;
step S303: setting the maintenance times as W, the maintenance time and the maintenance cost as W, and W= { (t) 1 ,c 1 ),(t 2 ,c 2 ),...,(t w ,c w ) And (3) calculating the maintenance influence factors of the electromechanical equipment of the expressway, wherein the calculation formula is as follows:wherein t is z Representing a standard repair time for repairing the z-th time, c z Representing the standard maintenance cost of the z-th maintenance, y wx Representing the maintenance influence factor of the electromechanical equipment of the expressway, t i Representing the maintenance time of the ith maintenance, c i Representing the maintenance cost of the ith maintenance;
step S304: the health index of the electromechanical system of the expressway is evaluated, and the evaluation calculation formula is as follows:
ZS＝ZS 0 ×Y gz Y lh Y wx ，
wherein ZS represents the health index of the highway electromechanical system when the system operates for n years, ZS 0 Representing an initial health index of the highway electromechanical system;
step S305: and classifying the health states corresponding to the current health indexes and generating operation and maintenance strategies.
6. The method for evaluating health index of an expressway electro-mechanical system according to claim 5, wherein said health status and operation and maintenance strategy corresponding to said current health index in step S305 includes:
when ZS is more than or equal to 0 and less than or equal to 20, the mechanical equipment of the highway is in a pathological state, the technical performance of the power distribution equipment is seriously defective, the requirements of operation standards cannot be met, the system is threatened to run safely and stably by continuing to run, replacement is urgently needed, when ZS is more than or equal to 20 and less than or equal to 40, the mechanical equipment of the highway is in an abnormal state, the power distribution equipment can perform functions within the specified standards barely, when ZS is more than or equal to 40 and less than or equal to 60, the mechanical equipment of the highway is in a paying attention state, the working condition of the power distribution equipment is basically intact, the functions under the specified conditions can be performed, when ZS is more than or equal to 60 and less than or equal to 80, the mechanical equipment of the highway is in a sub-healthy state, the functions and performances of the power distribution equipment are intact, when ZS is more than or equal to 80 and less than or equal to 100, the performances of the power distribution equipment are up to standard, and the foundation of the equipment is good.
7. A highway electromechanical system health index evaluation system implemented based on the highway electromechanical system health index evaluation method according to any one of claims 1 to 6, comprising:
the system comprises a communication module, a monitoring module, a charging module, a power supply and distribution module, a health evaluation module and an operation and maintenance module;
the communication module is used for providing communication among the monitoring module, the charging module and the power supply and distribution module;
the monitoring module is used for monitoring the state of the electromechanical equipment of the expressway and the running state of the vehicle on the expressway;
the charging module is used for charging high-speed passing fees of the ECT channel and the mixed channel vehicles;
the power supply and distribution module is used for providing power for the highway electromechanical system;
the health evaluation module is used for evaluating the health index of the expressway electromechanical system;
the operation and maintenance module is used for providing operation and maintenance advice according to the health index of the current highway electromechanical system.
8. The highway electromechanical system health index assessment system of claim 7, wherein said monitoring module comprises: the system comprises an expressway electromechanical equipment monitoring unit and a vehicle monitoring unit;
the monitoring unit of the highway electromechanical equipment is used for monitoring the running state of the highway electromechanical equipment;
the vehicle monitoring unit is used for monitoring the running state of the expressway vehicle.
9. The highway electromechanical system health index assessment system of claim 8, wherein said charging module comprises: toll booths, ETC lanes, mixed lanes and accessory facility units;
the toll station is used for collecting the toll of passing vehicles;
the ETC lane is used for a high-speed toll gate channel of the vehicle ETC;
the mixed lane is used for a high-speed toll gate channel of a vehicle ETC and a common vehicle;
the auxiliary facility units comprise traffic safety facilities, traffic management facilities, protection facilities, service facilities and greening facilities and are used for assisting in collecting the passing fee for passing vehicles.
10. The highway electromechanical system health index assessment system of claim 9, wherein said power supply and distribution module comprises: a charging power supply unit and a monitoring power supply unit;
the charging power supply unit is used for providing power for the charging module;
the monitoring power supply unit is used for providing power for the monitoring module.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117610971A (en) * | 2024-01-18 | 2024-02-27 | 山东通维信息工程有限公司 | Highway electromechanical system health index evaluation method |
| CN117633660A (en) * | 2024-01-25 | 2024-03-01 | 永联科技(常熟)有限公司 | Charging pile health state evaluation method and device, storage medium and electronic equipment |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117610971A (en) * | 2024-01-18 | 2024-02-27 | 山东通维信息工程有限公司 | Highway electromechanical system health index evaluation method |
| CN117610971B (en) * | 2024-01-18 | 2024-04-12 | 山东通维信息工程有限公司 | Highway electromechanical system health index evaluation method |
| CN117633660A (en) * | 2024-01-25 | 2024-03-01 | 永联科技(常熟)有限公司 | Charging pile health state evaluation method and device, storage medium and electronic equipment |
| CN117633660B (en) * | 2024-01-25 | 2024-05-07 | 永联科技(常熟)有限公司 | Charging pile health state evaluation method and device, storage medium and electronic equipment |
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