CN102975745B - Preventative maintenance system and preventative maintenance method of subway signal system - Google Patents
Preventative maintenance system and preventative maintenance method of subway signal system Download PDFInfo
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- CN102975745B CN102975745B CN201210507163.XA CN201210507163A CN102975745B CN 102975745 B CN102975745 B CN 102975745B CN 201210507163 A CN201210507163 A CN 201210507163A CN 102975745 B CN102975745 B CN 102975745B
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Abstract
The invention provides a preventative maintenance method of a subway signal system. The preventative maintenance method comprises the following steps of S1, setting alarm threshold values of state data of devices, which are in need of preventative maintenance, in the subway signal system; S2, obtaining state initial data of each device, converting the state initial data according to needs, and storing secondary data in a database after forming the secondary data; and S3, deducing the expected overtime of each device according to the alarm threshold values and the secondary data stored in the database by utilizing a data fitting and trend prediction method. According to the preventative maintenance method provided by the invention, the expected overtime of each signal device can be deduced through the operating state which is monitored and recorded, in-time alarm can be carried out on the device which is abnormal or deviates from a preset limit at the same time, and thus potential safety hazard can be completely eradicated. The invention also provides a preventative maintenance system of the subway signal system.
Description
Technical field
The present invention relates to transit equipment area of maintenance, particularly a kind of preventative maintenance system of subway signal system and method.
Background technology
Urban Rail Transit Signal control system is one of infrastructure device of railway transportation, which is responsible transmission and the monitor task of the information such as the operation conditions of road network up train equipment, the real-time status of train operation, the instruction control of transportation control, at control train operation, guarantee train safe, ensure that high efficiency operation organizational aspects plays central role.Current subway signal generally adopts microcomputer detecting system as the means of signal system repair based on condition of component, but microcomputer detecting system can not provide the fault expection of equipment, only can accomplish that just announcement apparatus needs to safeguard when the event that transfinites occurs, and makes service personnel can only be in passive maintenance state.
In order to break away from maintenance passive situation, subway communication maintenance department formulated current maintenance, in repair, the maintenance plan such as overhaul.Wherein, cycle of Repair of signal equipment and replacing is substantially the device parameter that provides in conjunction with producer and service personnel historical experience value in the past and determines, the support of real-world operation status data will be lacked like this, time gap granularity between twice maintenance is larger, thus causing two kinds of results: one causes excessive maintenance because plant maintenance frequency is too high, increases maintenance cost; Another kind is due to equipment individual difference, make certain equipment real maintenance opportunity must in advance in planned time time, service personnel but cannot be discovered, and buries potential safety hazard.
Therefore, prior art still needs to be improved.
Summary of the invention
For the deficiency that prior art exists; the invention provides a kind of preventative maintenance system and method for subway signal system; make the expection overtime of each signalling set can by monitor and the running state recorded is deduced; can also the equipment occurring exception or depart from predetermined threshold be carried out and alarm, to stop potential safety hazard simultaneously.
The present invention is achieved by the following technical programs:
A P/M method for subway signal system, comprises the following steps:
S1: to the equipment needing preventive maintenance in subway signal system, set the alarming threshold value of its status data;
S2: the state original data obtaining described each equipment, and need to be changed according to application, store in a database after forming secondary data;
S3: utilize data fitting and trend forecasting method, according to described alarming threshold value and storage secondary data in a database, deduces the expection overtime of each equipment.
Described method comprises further:
S0: before needing the equipment of preventive maintenance to open use in subway signal system, its analog quantity, switching value and measuring accuracy thereof are checked.
Described method comprises further:
S4: for described equipment, when the state original data in step S2 exceedes the alarming threshold value of its setting, sends warning; When described state original data does not exceed this alarming threshold value, export the expection overtime.
Described step S2 comprises further:
S21: the state original data obtaining each equipment in subway signal system, and be stored in corresponding each signaling subsystem workover rig;
S22: the state original data in described each signaling subsystem workover rig is sent to by signal maintenance private network and safeguards monitor server;
S23: described safeguard monitor server to the state original data received carry out classification process, and according to application needs change, formed secondary data;
S24: described secondary data is stored in a database;
In described step S21, described equipment comprises selfdiagnosis equipment and non-self diagnostic installation; Wherein, the state original data of selfdiagnosis equipment is gathered by oneself and obtains; The state original data of non-self diagnostic installation is obtained by the upper layer signal subsystem collection belonging to it.
The expection overtime of deducing each equipment in described step S3 comprises the expection overtime of deducing each equipment simulating amount and the expection overtime of deducing each facility switching amount, and further comprising the steps:
S31: to described secondary data, carries out curve fitting according to its statistical distribution or count distribution;
S32: the trend of drawing the countershaft at any time of curve after matching;
S33: using the intersection of trend curve and alarming threshold value as expecting the overtime.
A preventative maintenance system for subway signal system, include:
Setup unit, for the setting needing the equipment of preventive maintenance to carry out status data alarming threshold value in subway signal system;
Data processing unit, for obtaining the state original data of described each equipment, and needs to be changed according to application, stores in a database after forming secondary data;
Data deduce unit, for according to described alarming threshold value and storage secondary data in a database, utilize data fitting and trend forecasting method, deduce the expection overtime of each equipment.
Described system comprises alarm unit further; When the state original data of described equipment exceedes the alarming threshold value of its setting, send warning.
Described system comprises check unit further, before opening use, checks its analog quantity, switching value and measuring accuracy thereof for needing the equipment of preventive maintenance in subway signal system.
The present invention utilizes data fitting and trend forecasting method, monitors and the main running state of recording signal system each equipment interior, deduces the expection overtime of each signalling set, be supplied to service personnel, for the rational of maintenance schedule provides foundation; , when signalling set work departs from predetermined threshold or occurs abnormal, can report to the police in time meanwhile, avoid because of breakdown of equipment or operate the safety, the running on time that affect train against regulations.
Accompanying drawing explanation
Fig. 1 is diagram of circuit of the present invention;
Fig. 2 is system and device figure of the present invention.
Detailed description of the invention
Under regard to preventative maintenance system and the method for a kind of subway signal system proposed by the invention, describe in detail in conjunction with the accompanying drawings and embodiments.
Embodiment 1:
The invention provides a kind of P/M method of subway signal system, comprise the following steps:
S1: to the equipment needing preventive maintenance in subway signal system, set the alarming threshold value of its status data;
S2: the state original data obtaining described each equipment, and need to be changed according to application, store in a database after forming secondary data;
S3: utilize data fitting and trend forecasting method, according to described alarming threshold value and storage secondary data in a database, deduces the expection overtime of each equipment.
Described method comprises further:
S0: before needing the equipment of preventive maintenance to open use in subway signal system, its analog quantity, switching value and measuring accuracy thereof are checked.
Described method comprises further:
S4: for described equipment, when the state original data in step S2 exceedes the alarming threshold value of its setting, sends warning; When described state original data does not exceed this alarming threshold value, export the expection overtime.
Described step S2 comprises further:
S21: the state original data obtaining each equipment in subway signal system, and be stored in corresponding each signaling subsystem workover rig;
S22: the state original data in described each signaling subsystem workover rig is sent to by signal maintenance private network and safeguards monitor server;
S23: described safeguard monitor server to the state original data received carry out classification process, and according to application needs change, formed secondary data;
S24: described secondary data is stored in a database;
In described step S21, described equipment comprises selfdiagnosis equipment and non-self diagnostic installation; Wherein, the state original data of selfdiagnosis equipment is gathered by oneself and obtains; The state original data of non-self diagnostic installation is obtained by the upper layer signal subsystem collection belonging to it.
The expection overtime of deducing each equipment in described step S3 comprises the expection overtime of deducing each equipment simulating amount and the expection overtime of deducing each facility switching amount, and further comprising the steps:
S31: to described secondary data, carries out curve fitting according to its statistical distribution or count distribution;
S32: the trend of drawing the countershaft at any time of curve after matching;
S33: using the intersection of trend curve and alarming threshold value as expecting the overtime.
A preventative maintenance system for subway signal system, includes:
Setup unit, for the setting needing the equipment of preventive maintenance to carry out status data alarming threshold value in subway signal system;
Data processing unit, for obtaining the state original data of described each equipment, and needs to be changed according to application, stores in a database after forming secondary data;
Data deduce unit, for according to described alarming threshold value and storage secondary data in a database, utilize data fitting and trend forecasting method, deduce the expection overtime of each equipment.
Described system comprises alarm unit further; When the state original data of described equipment exceedes the alarming threshold value of its setting, send warning.
Described system comprises check unit further, before opening use, checks its analog quantity, switching value and measuring accuracy thereof for needing the equipment of preventive maintenance in subway signal system.
Embodiment 2:
The present embodiment is further explained the present invention by reference to the accompanying drawings and illustrates, as shown in Figure 1:
S1: to the equipment needing preventive maintenance in subway signal system, set the alarming threshold value of its status data; Described preventive maintenance equipment provides alarm threshold value typing interface, and before equipment opens use, service personnel is tackled its analog quantity, switching value and measuring accuracy and checked, and the typing of completion status data alarming threshold value.
S2: the state original data obtaining described each equipment, and need to be changed according to application, store in a database after forming secondary data;
Wherein said each equipment comprises selfdiagnosis equipment and non-self diagnostic installation; Such as, to the state original data with selfdiagnosis equipment, automatic train monitor, interlocking, be stored in corresponding each signaling subsystem workover rig after gathering acquisition by oneself; To non-self diagnostic installation, such as track switch voltage, relay status, shielded gate state, can obtain through the upper layer signal subsystem collection belonging to it, be stored in each signaling subsystem workover rig;
Described equipment state original data is by each signal system workover rig, being sent to by signal maintenance private network and safeguard monitor server, by safeguarding that monitor server carries out classification to state original data and processes, and changing according to application needs, form secondary data, store in a database.
S3: utilize data fitting and trend forecasting method, according to described alarming threshold value and storage secondary data in a database, deduces the expection overtime of each equipment;
From data bank, extract current secondary data, according to alarm threshold value, data fitting and trend prediction are carried out to described secondary data; The analog quantity of described equipment is carried out curve fitting, according to its statistical distribution, obtain its average, maxim, minimum value walk power curve, calculated curve maximum slope, draw the trend of the countershaft at any time of curve after matching, the intersection of this trend curve and analog quantity alarm threshold value, as its expection overtime; The switching value of described equipment is carried out curve fitting, according to its count distribution, added up by switch motion number of times, obtain its matched curve, and curvilinear trend is analyzed, the trend of curve after drafting matching, the intersection of this trend curve and switching value alarm threshold value, as the switching value expection overtime.
Safeguard the state original data of each subsystem of monitor server Real-Time Monitoring, when described state original data does not exceed alarming threshold value, provide the expection overtime; When described state original data exceedes the alarming threshold value of its correspondence, such as analog quantity exceedes the highest/minimum limit value, switching value action frequency reaches the limit value of maintenance times, then automatic alarm, prompting maintainer carries out overhauling and the attended operation such as replacing, reach P/M, reduce the object that grave accident occurs.
According to the feature of equipment state original data real-time change, described matched curve and this trend curve all adopt dynamic generation, and then make equipment expect the overtime also in continuous renewal change, be convenient to signal maintainer and obtain latest equipment state trend at any time, adjust maintenance schedule in time.
Embodiment 3:
As shown in Figure 2, the present invention also provides a kind of preventative maintenance system of subway signal system, includes:
Setup unit, for the setting needing the equipment of preventive maintenance to carry out status data alarming threshold value in subway signal system;
Data processing unit, for obtaining the state original data of described each equipment, and needs to be changed according to application, stores in a database after forming secondary data;
Data deduce unit, for according to described alarming threshold value and storage secondary data in a database, utilize data fitting and trend forecasting method, deduce the expection overtime of each equipment.
Described system comprises alarm unit further; When the state original data of described equipment exceedes the alarming threshold value of its setting, send warning.
Described system comprises check unit further, before opening use, checks its analog quantity, switching value and measuring accuracy thereof for needing the equipment of preventive maintenance in subway signal system.
The present invention utilizes data fitting and trend forecasting method, monitor and the main running state of recording signal system each equipment interior, the expection overtime of deducing each signalling set is supplied to service personnel, for the rational of maintenance schedule provides foundation, make periodical maintenance can be evidence-based, be convenient to the rationalization that maintenance intervals is formulated, avoided excessively protecting the waste expense caused; , when signalling set work departs from predetermined threshold or occurs abnormal, can report to the police in time meanwhile, avoid because of breakdown of equipment or operate the safety, the running on time that affect train against regulations.
Above embodiment is only for illustration of the present invention; and be not limitation of the present invention; the those of ordinary skill of relevant technical field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all equivalent technical schemes also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims fixed.
Claims (8)
1. a P/M method for subway signal system, is characterized in that, comprise the following steps:
S1: to the equipment needing preventive maintenance in subway signal system, set the alarming threshold value of its status data;
S2: the state original data obtaining described each equipment, and need to be changed according to application, store in a database after forming secondary data;
S3: utilize data fitting and trend forecasting method, according to described alarming threshold value and storage secondary data in a database, deduces the expection overtime of each equipment
;
The expection overtime of deducing each equipment in described step S3 comprises the expection overtime of deducing each equipment simulating amount and the expection overtime of deducing each facility switching amount, and further comprising the steps:
From data bank, extract current secondary data, according to alarm threshold value, data fitting and trend prediction are carried out to described secondary data;
The analog quantity of described equipment is carried out curve fitting, according to its statistical distribution, obtain its average, maxim, minimum value walk power curve, calculated curve maximum slope, draw the trend of the countershaft at any time of curve after matching, the intersection of this trend curve and analog quantity alarm threshold value, as its expection overtime;
The switching value of described equipment is carried out curve fitting, according to its count distribution, added up by switch motion number of times, obtain its matched curve, and curvilinear trend is analyzed, the trend of curve after drafting matching, the intersection of this trend curve and switching value alarm threshold value, as the switching value expection overtime.
2. the method for claim 1, is characterized in that, described method comprises further:
S0: before needing the equipment of preventive maintenance to open use in subway signal system, its analog quantity, switching value and measuring accuracy thereof are checked.
3. the method for claim 1, is characterized in that, described method comprises further:
S4: for described equipment, when the state original data in step S2 exceedes the alarming threshold value of its setting, sends warning; When described state original data does not exceed this alarming threshold value, export the expection overtime.
4. the method for claim 1, is characterized in that, described step S2 comprises further:
S21: the state original data obtaining each equipment in subway signal system, and be stored in corresponding each signaling subsystem workover rig;
S22: the state original data in described each signaling subsystem workover rig is sent to by signal maintenance private network and safeguards monitor server;
S23: described safeguard monitor server to the state original data received carry out classification process, and according to application needs change, formed secondary data;
S24: described secondary data is stored in a database.
5. method as claimed in claim 4, it is characterized in that, in described step S21, described equipment comprises selfdiagnosis equipment and non-self diagnostic installation; Wherein, the state original data of selfdiagnosis equipment is gathered by oneself and obtains; The state original data of non-self diagnostic installation is obtained by the upper layer signal subsystem collection belonging to it.
6. a preventative maintenance system for subway signal system, is characterized in that, includes:
Setup unit, for the setting needing the equipment of preventive maintenance to carry out status data alarming threshold value in subway signal system;
Data processing unit, for obtaining the state original data of described each equipment, and needs to be changed according to application, stores in a database after forming secondary data;
Data deduce unit, for according to described alarming threshold value and storage secondary data in a database, utilize data fitting and trend forecasting method, deduce the expection overtime of each equipment;
Described data deduce unit, specifically for
Utilize data fitting and trend forecasting method, according to described alarming threshold value and storage secondary data in a database, the expection overtime of deducing each equipment comprises the expection overtime of deducing each equipment simulating amount and the expection overtime of deducing each facility switching amount, and further specifically for
From data bank, extract current secondary data, according to alarm threshold value, data fitting and trend prediction are carried out to described secondary data; The analog quantity of described equipment is carried out curve fitting, according to its statistical distribution, obtain its average, maxim, minimum value walk power curve, calculated curve maximum slope, draw the trend of the countershaft at any time of curve after matching, the intersection of this trend curve and analog quantity alarm threshold value, as its expection overtime; The switching value of described equipment is carried out curve fitting, according to its count distribution, added up by switch motion number of times, obtain its matched curve, and curvilinear trend is analyzed, the trend of curve after drafting matching, the intersection of this trend curve and switching value alarm threshold value, as the switching value expection overtime.
7. system as claimed in claim 6, it is characterized in that, this system comprises alarm unit further; When the state original data of described equipment exceedes the alarming threshold value of its setting, send warning.
8. system as claimed in claim 6, it is characterized in that, this system comprises check unit further, before opening use, checks its analog quantity, switching value and measuring accuracy thereof for needing the equipment of preventive maintenance in subway signal system.
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105425776B (en) * | 2015-12-10 | 2017-11-24 | 交控科技股份有限公司 | Subway signal system onboard facility switching amount input channel fault self-checking system |
| CN108288019B (en) * | 2017-12-06 | 2020-06-16 | 中国铁道科学研究院集团有限公司电子计算技术研究所 | Method and device for identifying preventive maintenance object of urban rail transit |
| CN108891449B (en) * | 2018-05-31 | 2020-09-11 | 上海工程技术大学 | Subway operation real-time positioning tracking control simulation system based on wireless base station |
| CN114842623A (en) * | 2022-03-28 | 2022-08-02 | 广州明珞装备股份有限公司 | Workshop alarm trend analysis method, system, equipment and storage medium |
| CN114757382A (en) * | 2022-06-13 | 2022-07-15 | 深圳市永达电子信息股份有限公司 | Subway shielded door remote maintenance method and system based on cloud platform |
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