CN105574299A - Safety pre-evaluation method for rail transit signal system - Google Patents
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Abstract
The invention discloses a safety pre-evaluation method for a rail transit signal system. The method includes the steps that a safety pre-evaluation model is established, wherein the safety pre-evaluation model comprises task elements, personnel elements, equipment elements, management elements and environmental elements; all historical safety events of the rail transit signal system are arranged into a pre-evaluation safety database according to the safety pre-evaluation model; the rail transit signal system is divided into several evaluation objects according to tasks; a signal system risk check table is made according to the pre-evaluation safety database; risk evaluation calculation is performed on each evaluation object according to the signal system risk check table; a risk rating result is determined according to calculation results, and weak links of the signal system are found out according to the risk rating result; risk control measures are developed for the weak links. The method meets the requirement for safety pre-evaluation on the rail transit signal system and improves the safety of the rail transit signal system.
Description
Technical field
The present invention relates to a kind of Safety Pre appraisal procedure of rail traffic signal system, be applied to track traffic security fields.
Background technology
Rail traffic signal system is that the various technological means of integrated use is to ensure the critical system of traffic safety.It is one of with high content of technology in railway traffic engineering, that safety-relevant is high, automaticity is high crucial Mechatronic Systems, is made up of train traffic control and Train Detection and Identification, interlocking, subscriber device such as car ground information transmission, train location etc.China AQ8001-2007 " general Rules of Safety Evaluation " specifies, needs to carry out independently third party's Safety Pre assessment for track traffic safety-related systems that is newly-built and that newly come into operation.Signal system just belongs to safe altitude related system, therefore, before rail traffic signal system engineering construction, must carry out Safety Pre assessment.
Safety Pre assessment is to the safe prediction that system is carried out before engineering construction, and being when not obtaining system operation data, security of system being carried out to the behavior of pre-risk assessment, require that degree of specialization is higher, difficulty is larger.
At present for the assessment of track traffic Safety Pre can in accordance with standard only have " Guideline on Safety Pre-Evaluation " (AQ8002-2007), " safety of urban transit pre assessment detailed rules and regulations " (AQ8004-2007).These two standards have just confined scope to all security of system pre assessment of track traffic and overall procedure, do not provide evaluation method, and signal system are wherein owing to being Safety-Critical System, more wants careful attention to its pre assessment, professional stronger; And pre assessment is the prediction and evaluation before engineering construction, the statistics fault data of signal system after Future Projects completes and comes into operation and operational monitoring data cannot be obtained, therefore general conventional security appraisal procedure is infeasible here; 3rd, these two standards are the guidance instruction of pre assessment, do not provide Safety Pre-Evaluation process for signal system and concrete safety is qualitative, quantivative approach, and causing not having the Safety Pre assessment of signal system in practice can the concrete grammar of reference.In sum, must be overall for pre assessment object with the signal system of this complexity to the assessment of signal system Safety Pre, specialty requires high, and Pre-Evaluation method is immature, causes the pre assessment operating technology difficulty in reality large.
Therefore, under the demand of current orbit traffic fast development, be badly in need of a kind of Safety Pre appraisal procedure being applicable to rail traffic signal system of design.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of Safety Pre appraisal procedure to rail traffic signal system general safety Pre-Evaluation.
To achieve these goals, the present invention adopts following technical scheme to be achieved:
A Safety Pre appraisal procedure for rail traffic signal system, comprises the following steps:
S1: set up Safety Pre assessment models, described Safety Pre assessment models comprises elements of mission, staff element, equipment key element, management essentials and environmental element;
S2: according to described Safety Pre assessment models, is organized into Pre-Evaluation safety database by the history security incident of all rail traffic signal systems;
S3: described rail traffic signal system is divided into several evaluation objects according to task, described evaluation object comprises Train Detection and Identification subsystem, computer interlock subsystem, train automatic monitoring subsystem, microcomputer monitoring subsystem, computer network system, communication facilities and power-supply unit;
S4: according to described Pre-Evaluation safety database, make signal system detection risk table, described signal system detection risk table comprises apparatus factor detection risk table, human factor detection risk table, management factors detection risk table and environmental factor detection risk table, and corresponding risk factors are followed successively by equipment Risk factor, personnel risk factor, managing risk factor and environmental risk factor;
S5: risk assessment calculating is carried out to each described evaluation object according to described signal system detection risk table;
S6: according to the result of calculation of step S5, determine risk rating result, described risk rating result comprises the overall grading of each risk factors and is included in the risk class of each risk item in each described risk factors, finds out the weak link in signal system according to described risk rating result;
S7: formulate risk control measure for described weak link.
Preferably, in step S2, described Pre-Evaluation safety database comprise described signal system equipment failure event and fault type, environmental impact security incident, management affects security incident and personnel affect security incident, and above-mentioned event occur time, place.
Preferably, in step S5, risk assessment computing method adopt following steps:
S51: select the evaluation object that will carry out risk assessment calculating, according to described Pre-Evaluation safety database, input the history security incident for this evaluation object;
S52: contingency analysis, namely calculates in this evaluation object after one or more equipment failure, the possibility that namely during occurrence risk item, described signal system normally works, to judge whether to cause operation security event, if so, enter step S53, if not, step S52 is continued;
Wherein, the problems such as described operation security event comprises train from overtaking collision, derail, head-on conflict, train-side are hit;
S53: calculate the probability of this risk item generation operation security event and the consequence that operation security event brings occurs;
S54: the risk calculating this risk item generation operation security event, its size equals the product of described operation security probability of occurrence and described operation security event consequence;
S55: judge whether contingency analysis all completes, and if so, enters step S56, if not, return step S52;
S56: according to risk possibility occurrence classification standard, draws the risk indicator result of this risk item, i.e. risk possibility occurrence grade.
Preferably, in step S6, according to the result of calculation of step S5, with reference to risk level standard, determine the risk rating result of this risk item.
Preferably, in step S7, according to the design of engineering, construction and debugging three phases, formulate risk control measure stage by stage.
Technical scheme provided by the invention: by the history security incident in the Pre-Evaluation safety database of foundation, not yet obtain the prerequisite of system operation data before engineering construction under, predict the failure rate of described rail traffic signal system, the weak link in rail traffic signal system is found out according to described risk rating result, risk control measure is formulated for described weak link, meet the Safety Pre assessment requirement of rail traffic signal system, improve the security of rail traffic signal system., analyzed by the history security incident in Pre-Evaluation safety database meanwhile, simple to operate, more easily realize.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of rail traffic signal system Safety Pre appraisal procedure of the present invention;
Fig. 2 is the step schematic diagram that the risk assessment in Safety Pre appraisal procedure of the present invention calculates.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail:
With reference to shown in Fig. 1, the Safety Pre appraisal procedure of rail traffic signal system of the present invention, comprises the following steps:
Step S1: set up Safety Pre assessment models, described Safety Pre assessment models comprises elements of mission, staff element, equipment key element, management essentials and environmental element.
Step S2: according to described Safety Pre assessment models, is organized into Pre-Evaluation safety database by the history security incident of all rail traffic signal systems.In step S2, described Pre-Evaluation safety database comprise described signal system equipment failure event and fault type, environmental impact security incident, management affects security incident and personnel affect security incident, and above-mentioned event occur time, place.
Step S3: described rail traffic signal system is divided into several evaluation objects according to task, described evaluation object comprises Train Detection and Identification subsystem, computer interlock subsystem, train automatic monitoring subsystem, microcomputer monitoring subsystem, computer network system, communication facilities and power-supply unit.
Step S4: according to described Pre-Evaluation safety database, make signal system detection risk table, described signal system detection risk table comprises apparatus factor detection risk table, human factor detection risk table, management factors detection risk table and environmental factor detection risk table, and corresponding risk factors are followed successively by equipment Risk factor, personnel risk factor, managing risk factor and environmental risk factor.Shown in table 1-4, wherein, table 1 is described apparatus factor detection risk table, and table 2 is described human factor detection risk tables, and table 3 is described management factors detection risk tables, and table 4 is described environmental factor detection risk tables.It should be noted that, risk item content listed in table 1-4 needs to adjust accordingly and supplement according to the difference of different Engineering Signal system application standard.
Table 1 apparatus factor detection risk table
Table 2 human factor detection risk table
Table 3 management factors detection risk table
Table 4 environmental factor detection risk table
Step S5: risk assessment calculating is carried out to each described evaluation object according to described signal system detection risk table.With reference to shown in Fig. 2, in step S5, risk assessment calculates and adopts following steps:
Step S51: select the evaluation object that will carry out risk assessment calculating, according to described Pre-Evaluation safety database, input the history security incident for this evaluation object.
Step S52: contingency analysis, namely calculates in this evaluation object after one or more equipment failure, the possibility that namely during occurrence risk item, described signal system normally works, to judge whether to cause operation security event, if so, enter step S53, if not, step S52 is continued.
Step S53: calculate the probability of this risk item generation operation security event and the consequence that operation security event brings occurs.
Step S54: the risk calculating this risk item generation operation security event, its size equals the product of described operation security probability of occurrence and described operation security event consequence.
Step S55: judge whether contingency analysis all completes, and if so, enters step S56, if not, return step S52.
Step S56: according to risk possibility occurrence classification standard, draws the risk indicator result of this risk item, i.e. risk possibility occurrence grade.Table 5 is risk possibility occurrence classification standards.
Table 5 risk possibility occurrence classification standard
Step S6: according to the result of calculation of step S5, determine risk rating result, described risk rating result comprises the overall grading of each risk factors and is included in the risk class of each risk item in each described risk factors, finds out the weak link in signal system according to described risk rating result.In step S6, according to the result of calculation of step S5, with reference to risk level standard, determine the risk rating result of this risk item.Table 6 is risk level standard.
Table 6 risk level standard
Step S7: formulate risk control measure for described weak link.In step S7, according to the design of engineering, construction and debugging three phases, formulate risk control measure stage by stage.
Technical scheme provided by the invention: by the history security incident in the Pre-Evaluation safety database of foundation, not yet obtain the prerequisite of system operation data before engineering construction under, predict the failure rate of described rail traffic signal system, the weak link in rail traffic signal system is found out according to described risk rating result, risk control measure is formulated for described weak link, meet the Safety Pre assessment requirement of rail traffic signal system, improve the security of rail traffic signal system., analyzed by the history security incident in Pre-Evaluation safety database meanwhile, simple to operate, more easily realize.
Claims (5)
1. a Safety Pre appraisal procedure for rail traffic signal system, is characterized in that, comprise the following steps:
S1: set up Safety Pre assessment models, described Safety Pre assessment models comprises elements of mission, staff element, equipment key element, management essentials and environmental element;
S2: according to described Safety Pre assessment models, is organized into Pre-Evaluation safety database by the history security incident of all rail traffic signal systems;
S3: described rail traffic signal system is divided into several evaluation objects according to task, described evaluation object comprises Train Detection and Identification subsystem, computer interlock subsystem, train automatic monitoring subsystem, microcomputer monitoring subsystem, computer network system, communication facilities and power-supply unit;
S4: according to described Pre-Evaluation safety database, make signal system detection risk table, described signal system detection risk table comprises apparatus factor detection risk table, human factor detection risk table, management factors detection risk table and environmental factor detection risk table, and corresponding risk factors are followed successively by equipment Risk factor, personnel risk factor, managing risk factor and environmental risk factor;
S5: risk assessment calculating is carried out to each described evaluation object according to described signal system detection risk table;
S6: according to the result of calculation of step S5, determine risk rating result, described risk rating result comprises the overall grading of each risk factors and is included in the risk class of each risk item in each described risk factors, finds out the weak link in signal system according to described risk rating result;
S7: formulate risk control measure for described weak link.
2. Safety Pre appraisal procedure according to claim 1, it is characterized in that, in step S2, described Pre-Evaluation safety database comprise described signal system equipment failure event and fault type, environmental impact security incident, management affects security incident and personnel affect security incident, and above-mentioned event occur time, place.
3. Safety Pre appraisal procedure according to claim 1, is characterized in that, in step S5, risk assessment computing method adopt following steps:
S51: select the evaluation object that will carry out risk assessment calculating, according to described Pre-Evaluation safety database, input the history security incident for this evaluation object;
S52: contingency analysis, namely calculates in this evaluation object after one or more equipment failure, the possibility that namely during occurrence risk item, described signal system normally works, to judge whether to cause operation security event, if so, enter step S53, if not, step S52 is continued;
S53: calculate the probability of this risk item generation operation security event and the consequence that operation security event brings occurs;
S54: the risk calculating this risk item generation operation security event, its size equals the product of described operation security probability of occurrence and described operation security event consequence;
S55: judge whether contingency analysis all completes, and if so, enters step S56, if not, return step S52;
S56: according to risk possibility occurrence classification standard, draws the risk indicator result of this risk item, i.e. risk possibility occurrence grade.
4. Safety Pre appraisal procedure according to claim 1, is characterized in that, in step S6, according to the result of calculation of step S5, with reference to risk level standard, determines the risk rating result of this risk item.
5. Safety Pre appraisal procedure according to claim 1, is characterized in that, in step S7, according to the design of engineering, construction and debugging three phases, formulates risk control measure stage by stage.
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Cited By (6)
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| CN106845776A (en) * | 2016-12-21 | 2017-06-13 | 吴中区穹窿山倪源交通器材经营部 | A kind of Rail Transit System runs safety evaluation method |
| CN111401712A (en) * | 2020-03-09 | 2020-07-10 | 交通运输部科学研究院 | Urban rail transit risk assessment system and method |
| CN111654417A (en) * | 2020-06-08 | 2020-09-11 | 中车青岛四方机车车辆股份有限公司 | Evaluation method and device, storage medium, processor and train |
| CN113382387A (en) * | 2021-06-16 | 2021-09-10 | 上海应用技术大学 | Network quality safety assessment method based on rail transit LTE-M system signaling |
| CN113610338A (en) * | 2021-06-23 | 2021-11-05 | 卡斯柯信号有限公司 | Rail transit signal system safety risk evaluation and risk early warning method and device |
| CN114612011A (en) * | 2022-04-20 | 2022-06-10 | 京东科技控股股份有限公司 | Risk prevention and control decision method and device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106845776A (en) * | 2016-12-21 | 2017-06-13 | 吴中区穹窿山倪源交通器材经营部 | A kind of Rail Transit System runs safety evaluation method |
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| CN111401712A (en) * | 2020-03-09 | 2020-07-10 | 交通运输部科学研究院 | Urban rail transit risk assessment system and method |
| CN111654417A (en) * | 2020-06-08 | 2020-09-11 | 中车青岛四方机车车辆股份有限公司 | Evaluation method and device, storage medium, processor and train |
| CN113382387A (en) * | 2021-06-16 | 2021-09-10 | 上海应用技术大学 | Network quality safety assessment method based on rail transit LTE-M system signaling |
| CN113610338A (en) * | 2021-06-23 | 2021-11-05 | 卡斯柯信号有限公司 | Rail transit signal system safety risk evaluation and risk early warning method and device |
| CN113610338B (en) * | 2021-06-23 | 2024-09-06 | 卡斯柯信号有限公司 | Rail transit signal system safety risk evaluation and risk early warning method and device |
| CN114612011A (en) * | 2022-04-20 | 2022-06-10 | 京东科技控股股份有限公司 | Risk prevention and control decision method and device |
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