CN-121990028-A - Risk state assessment method and device for high-speed railway train control system

CN121990028ACN 121990028 ACN121990028 ACN 121990028ACN-121990028-A

Abstract

The invention provides a risk state assessment method and device for a high-speed railway train control system, wherein the method comprises the steps of processing train data to be assessed based on a train operation safety field model to obtain train safety field intensity, determining the operation safety field model based on static field intensity, dynamic field intensity and effect field intensity, wherein the static field intensity comprises field intensity corresponding to line parameters of a train, the dynamic field intensity comprises field intensity of at least one of operation parameters and performance parameter deviation coefficients of the train, the effect field intensity is determined based on the static field intensity and the dynamic field intensity through additional field intensity generated by superposition effects, calculating safety field intensity according to the train safety field intensity, and assessing the risk state of the train according to An Quanchang force amperes to obtain a risk state assessment result. The method improves the risk assessment accuracy of the train in severe geological conditions and changeable environments, and further improves the running safety of the train.

Inventors

HAN KANG
WANG WEI
ZHANG LEI
LIU HONGJIE
LI YAN
NIU RU

Assignees

中国国家铁路集团有限公司
交控科技股份有限公司
北京交通大学

Dates

Publication Date: 20260508
Application Date: 20251215

Claims (10)

1. The risk state assessment method for the train control system of the high-speed railway is applied to the mobile block train control system and is characterized by comprising the following steps of: The method comprises the steps of processing train data to be evaluated based on a running safety field model of a train to obtain train safety field intensity, wherein the train data comprise train running data and surrounding environment data, the running safety field model is determined based on static field intensity, dynamic field intensity and effect field intensity, the static field intensity comprises field intensity corresponding to line parameters of the train, the dynamic field intensity comprises field intensity of at least one of running parameters and performance parameter deviation coefficients of the train, and the effect field intensity is determined based on additional field intensity generated by superposition effects of the static field intensity and the dynamic field intensity; and calculating the safety field force according to the safety field intensity of the train, and evaluating the risk state of the train according to the safety field force, so as to obtain a risk state evaluation result.
2. The risk state assessment method for a high-speed railway train control system according to claim 1, wherein the route parameters include a tunnel, a track gradient, a track curve radius and a wheel-track adhesion coefficient; the static field intensity is obtained by the following steps: the static field strength is calculated by: ; Wherein, the To the field intensity of the tunnel, A field strength of the track gradient, For the field strength of the radius of the track curve, The field strength is the wheel rail adhesion coefficient.
3. The risk state evaluation method for a train control system of a high-speed railway according to claim 1, wherein the operation parameters include an operation speed, an acceleration, an operation distance and an operation direction, and the performance parameter deviation coefficient includes a vehicle brake performance deviation coefficient and a safety protection model parameter deviation coefficient; The dynamic field intensity is obtained by the following steps: the static field strength is calculated by: ; Wherein, the For the operational state risk field strength, Is a virtual mass; The virtual mass is calculated by the following formula: ; Wherein, the For the total mass of the material to be equal, For vehicle types, classified as passenger and freight, In order to be a train speed, As a coefficient of variation in the braking performance of the vehicle, , For the parameter deviation coefficient of the safety protection model, 。
4. The risk state evaluation method for a high-speed railway train control system according to claim 1, wherein the effect field strength is obtained by: the effective field strength is calculated by: ; Wherein, the For the field strength of the effect field, For the static field strength of the field, For the dynamic field strength of the field, Is a factor of the additional field strength.
5. The risk state evaluation method for a train control system of a high-speed railway according to any one of claims 1 to 4, wherein the train operation security field model is obtained by: Calculating the train operation safety field model by the following steps: ; Wherein, the For the train operation safety field model, For the field strength of the effect field, For the static field strength of the field, For the dynamic field strength.
6. The risk state assessment method for a high-speed railway train control system according to claim 1, wherein the calculating a security force according to the train security field intensity comprises: the security field force is calculated by: ; Wherein, the For the safe field force of the train at the current position j, For the train safety field strength of the train at the current position j, For the virtual quality of the train at the current location j, And k is an adjusting coefficient for the speed of the train at the current position j.
7. The risk state assessment device for the train control system of the high-speed railway is applied to a mobile block train control system and is characterized by comprising the following components: The system comprises a calculation module, a train safety field model, a dynamic field model and an effect field model, wherein the train safety field model is used for processing train data to be evaluated based on a running safety field model of a train to obtain train safety field intensity, the train data comprises train running data and surrounding environment data, the running safety field model is determined based on static field intensity, dynamic field intensity and effect field intensity, the static field intensity comprises field intensity corresponding to line parameters of the train, the dynamic field intensity comprises field intensity of at least one of running parameters and performance parameter deviation coefficients of the train, and the effect field intensity is determined based on the static field intensity and the additional field intensity generated by superposition effect of the dynamic field intensity; And the evaluation module is used for calculating the security field force according to the security field intensity of the train, evaluating the risk state of the train according to the security field force and obtaining a risk state evaluation result.
8. An electronic device comprising a memory, a processor and a computer program stored on the memory and running on the processor, characterized in that the processor implements the risk status assessment method for a high-speed railway train control system according to any one of claims 1 to 6 when executing the computer program.
9. A non-transitory computer readable storage medium having stored thereon a computer program, wherein the computer program when executed by a processor implements the risk status assessment method for a high-speed railway train control system according to any one of claims 1 to 6.
10. A computer program product comprising a computer program, characterized in that the computer program, when executed by a processor, implements a risk status assessment method for a high-speed railway train control system according to any one of claims 1 to 6.

Description

Risk state assessment method and device for high-speed railway train control system Technical Field The invention relates to the field of rail traffic safety, in particular to a risk state assessment method and device for a high-speed railway train control system. Background The movable block train control system breaks through a running safety guarantee mode that a fixed block system separates trains according to a fixed block section, and the running safety is guaranteed by adopting a mode of locating the tail of a front train and detecting obstacles in a running limit in real time. However, the poor geological conditions, the changeable environmental factors and the poor states of the equipment all provide unprecedented challenges for the mobile block train control system, and how to overcome the problems of poor environmental conditions and large running risk uncertainty is a technical problem that needs to be overcome in developing a novel train control system. In the related art, the rail transit safety risk management and control technology adopts a fault-safety principle, takes the 'least adverse condition' as a representative to carry out over-conservative safety protection, the safety protection strategy possibly brings new potential safety hazards, for example, a train stays in a tunnel through emergency braking, because the tunnel belongs to a typical risk point, the train can cause great stress on the psychology and physiology of passengers when the train stops in the tunnel for a long time, even serious accidents occur, in addition, various safety monitoring systems of the rail transit are independently operated, but accidents are caused by superposition of various causes and gradual amplification of risks in the actual operation process, so that the conventional rail transit monitoring system or method cannot effectively monitor various potential concurrent potential hazards in a complex environment, and the safety of the train in operation in a severe geological condition and a changeable environment is low. Disclosure of Invention The invention provides a risk state assessment method and a risk state assessment device for a high-speed railway train control system, which are used for solving the defects that new potential safety hazards are easy to introduce when a fault-safety principle is adopted to carry out train safety protection in the prior art, and various safety monitoring systems of rail transit are independently operated and can not effectively monitor various potential concurrent potential hazards in a complex environment. The invention provides a risk state assessment method for a high-speed railway train control system, which is applied to a mobile block train control system and comprises the following steps: The method comprises the steps of processing train data to be evaluated based on a running safety field model of a train to obtain train safety field intensity, wherein the train data comprise train running data and surrounding environment data, the running safety field model is determined based on static field intensity, dynamic field intensity and effect field intensity, the static field intensity comprises field intensity corresponding to line parameters of the train, the dynamic field intensity comprises field intensity of at least one of running parameters and performance parameter deviation coefficients of the train, and the effect field intensity is determined based on additional field intensity generated by superposition effects of the static field intensity and the dynamic field intensity; and calculating the safety field force according to the safety field intensity of the train, and evaluating the risk state of the train according to the safety field force, so as to obtain a risk state evaluation result. According to the risk state assessment method for the high-speed railway train control system, the line parameters comprise a tunnel, a track gradient, a track curve radius and a wheel-track adhesion coefficient; the static field intensity is obtained by the following steps: the static field strength is calculated by: ; Wherein, the To the field intensity of the tunnel,A field strength of the track gradient,For the field strength of the radius of the track curve,The field strength is the wheel rail adhesion coefficient. According to the risk state evaluation method for the high-speed railway train control system, the operation parameters comprise operation speed, acceleration, operation distance and operation direction, and the performance parameter deviation coefficient comprises a vehicle braking performance deviation coefficient and a safety protection model parameter deviation coefficient; The dynamic field intensity is obtained by the following steps: the static field strength is calculated by: ; Wherein, the For the operational state risk field strength,Is a virtual mass; The virtual mass is calculated by the following formula: ; Wherein, the For the to