CN-122009284-A - Safety operation domain system and method for train operation

CN122009284ACN 122009284 ACN122009284 ACN 122009284ACN-122009284-A

Abstract

The embodiment of the specification provides a safety operation domain system and method for train operation, wherein the system comprises a database, a data service module and a front end, wherein the database is used for storing calculation process data and result data of each safety parameter of virtual marshalling operation, the data service module is used for carrying out real-time calculation on the safety parameters of the virtual marshalling operation, analyzing the distribution rule of historical data of the safety parameters, calculating according to the distribution rule to obtain reference values of each safety parameter, comparing the real-time calculation result of the safety parameters with the reference values to obtain comparison results, generating alarm information and early warning information according to the comparison results, and the front end is used for displaying the distribution rule, the historical change trend, the alarm information and the early warning information of the safety parameters.

Inventors

GUO LONGLONG
ZHANG LEI
SONG YAJING
SUN BO

Assignees

交控科技股份有限公司

Dates

Publication Date: 20260512
Application Date: 20251223

Claims (10)

1. A train operation oriented secure operations domain system, comprising: the database is used for storing the calculation process data and the result data of each safety parameter of virtual grouping operation; The data service module is used for carrying out real-time calculation on the safety parameters of virtual marshalling operation, analyzing the distribution rule of the historical data of the safety parameters, calculating according to the distribution rule to obtain the reference value of each safety parameter, comparing the real-time calculation result of the safety parameters with the reference value to obtain a comparison result, and generating alarm information and early warning information according to the comparison result; And the front end is used for displaying the distribution rule and the historical change trend of the safety parameters, and the alarm information and the early warning information.
2. The system of claim 1, wherein the safety parameters of the virtual consist operation include track safety parameters, signal safety parameters, and vehicle safety parameters, wherein the track safety parameters include track environment parameters, wherein the track environment parameters include weather conditions within a line range, wherein the signal safety parameters include ranging/speed measurement errors, acceleration measurement errors, and transponder radiation ranges, and wherein the vehicle safety parameters include traction acceleration, traction impact rate, emergency brake response delay, emergency brake setup time, emergency brake setup phase deceleration, emergency brake steady phase deceleration, emergency brake end-of-line deceleration, emergency brake overall process anomaly detection, reservoir pressure anomaly detection, and service brake deceleration.
3. The system according to claim 1, wherein the data service module specifically comprises: The real-time computation sub-module is used for acquiring log data from the train in real time, carrying out data cleaning and filtering on the acquired log data to obtain computation parameters, and computing corresponding safety parameters in real time according to the computation parameters; The analysis sub-module is used for collecting historical data of the safety parameters, determining a reference value of the safety parameters through distribution rule analysis, comparing the safety parameters calculated in real time with the reference value, triggering early warning if the safety parameters exceed the reference value, comparing the safety parameters with a preset system safety boundary, and directly triggering warning if the safety parameters further exceed the system safety boundary, wherein the analysis method specifically comprises normal distribution, an isolated forest anomaly detection algorithm, a mean value and a variance.
4. A system according to claim 3, wherein the real-time computing sub-module is specifically configured to: Acquiring meteorological conditions and rail surface real-time monitoring images in a line range, classifying the rail surface real-time monitoring images through a classification algorithm, and judging the dry and wet states of the rail surface according to classification results and in combination with the meteorological conditions; The distance/speed measuring error is calculated by the speed transmission accumulated distance and the actual distance of the transponder during the response, the acceleration measuring error is calculated by the speed transmission acceleration and the acceleration of the accelerometer, and the radiation range of the transponder is calculated by the speed and the time of entering and exiting the transponder.
5. The system of claim 1, wherein the data service module is further specifically configured to generate corresponding risk mitigation measures information based on the alert information and the pre-warning information.
6. A train operation oriented safe operation domain method for a train operation oriented safe operation domain system according to any one of claims 1 to 5, the method comprising in particular: real-time computing is carried out on safety parameters of virtual marshalling operation, the distribution rule of historical data of the safety parameters is analyzed, a reference value of each safety parameter is obtained through computing according to the distribution rule, a real-time computing result of the safety parameters is compared with the reference value to obtain a comparison result, and alarm information and early warning information are generated according to the comparison result; And storing the calculation process data and the result data of each safety parameter for virtual grouping operation into a database, and displaying the distribution rule, the historical change trend, the alarm information and the early warning information of the safety parameters through the front end.
7. The method of claim 6, wherein the safety parameters of the virtual consist operation include track safety parameters, signal safety parameters, and vehicle safety parameters, wherein the track safety parameters include track environment parameters, wherein the track environment parameters include weather conditions within a line range, wherein the signal safety parameters include ranging/speed measurement errors, acceleration measurement errors, and transponder radiation ranges, and wherein the vehicle safety parameters include traction acceleration, traction impact rate, emergency brake response delay, emergency brake setup time, emergency brake setup phase deceleration, emergency brake steady phase deceleration, emergency brake tail-off phase deceleration, emergency brake overall process anomaly detection, reservoir pressure anomaly detection, and service brake deceleration.
8. The method of claim 6, wherein the step of providing the first layer comprises, Calculating the safety parameters of virtual marshalling operation in real time, analyzing the distribution rule of the historical data of the safety parameters, calculating the reference value of each safety parameter according to the distribution rule, comparing the real-time calculation result of the safety parameters with the reference value to obtain a comparison result, and generating alarm information and early warning information according to the comparison result specifically comprises: acquiring log data from a train in real time, performing data cleaning and filtering on the acquired log data to obtain calculation parameters, and calculating corresponding safety parameters in real time according to the calculation parameters; Collecting historical data of a safety parameter, analyzing and determining a reference value of the safety parameter through a distribution rule, comparing the safety parameter calculated in real time with the reference value, triggering early warning if the safety parameter exceeds the reference value, comparing the safety parameter with a preset system safety boundary, and directly triggering warning if the safety parameter exceeds the system safety boundary, wherein the analysis method specifically comprises normal distribution, isolated forest anomaly detection algorithm, mean value and variance; The method comprises the steps of acquiring log data from a train in real time, performing data cleaning and filtering on the acquired log data to obtain calculation parameters, and calculating corresponding safety parameters in real time according to the calculation parameters specifically comprises the following steps: Acquiring meteorological conditions and rail surface real-time monitoring images in a line range, classifying the rail surface real-time monitoring images through a classification algorithm, and judging the dry and wet states of the rail surface according to classification results and in combination with the meteorological conditions; Calculating a distance measurement/speed measurement error through a speed transmission accumulated distance and an actual distance of the transponder during response, calculating an acceleration measurement error through a speed transmission acceleration and an acceleration of an accelerometer, and calculating a radiation range of the transponder through the speed and the time of entering and exiting the transponder; the method further comprises the step of generating corresponding risk mitigation measure information according to the alarm information and the early warning information.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the computer program implementing the steps of the train operation oriented secure operation domain method according to any of claims 6 to 8 when executed by the processor.
10. A computer-readable storage medium, wherein a program for implementing information transfer is stored on the computer-readable storage medium, and the program when executed by a processor implements the steps of the train operation oriented safe operation domain method according to any one of claims 6 to 8.

Description

Safety operation domain system and method for train operation Technical Field The document relates to the technical field of rail transit, in particular to a safe operation domain system and method for train operation. Background Along with the rapid construction and development of urban rail transit, the jurisdiction of the train control system is continuously enlarged, the responsibility is increasingly born, and the safety boundary is continuously refined. In this context, the conventional approach that the static assumption of the security boundary of the system is always established or only depends on manual security is difficult to meet the requirement of continuous security operation of the system, so the addition of the security operation domain monitoring system becomes a necessary trend. In the current train control system of urban rail transit, a mobile block tracking principle is generally adopted, whether a common CBTC system or a more advanced urban rail train control system. The principle is based on the assumption that the lead vehicle can stop instantaneously (commonly called as a hard wall collision), on the basis, the tracking target point of the rear train is set to reserve a certain protection distance at the tail part of the front train, and the maximum allowable speed of the rear train can be accurately calculated according to a dynamics model of emergency braking of the rear train, so that the running safety among the trains is ensured. The virtual marshalling safety model (commonly called as a 'soft wall collision') shows better safety and accuracy. The model can accurately determine the final actual tail position of the front train according to the real-time position, speed, acceleration and other dynamic information of the front train, so that the dangerous point is clear. Compared with the traditional model, the method can describe the vehicle emergency braking establishment process more accurately, the emergency braking rate in the emergency braking establishment process is described as a function of time change, the actual braking scene is more fitted through the dynamic function relation, and the model structure is shown in fig. 1. From the characteristic of the virtual marshalling safety model, the method breaks the conservative assumption that the traditional front train stops at any time while improving the running efficiency by shortening the safety protection distance, so that adverse factors brought by more dynamic variables are faced in the running process of the train, such as actual parameter fluctuation, emergency braking response deviation under a complex scene and the like, and potential threats are possibly formed on running safety. Disclosure of Invention The invention aims to provide a safe operation domain system and method for train operation, and aims to solve the problems in the prior art. The invention provides a safe operation domain system facing train operation, which comprises: the database is used for storing the calculation process data and the result data of each safety parameter of virtual grouping operation; The data service module is used for carrying out real-time calculation on the safety parameters of virtual marshalling operation, analyzing the distribution rule of the historical data of the safety parameters, calculating according to the distribution rule to obtain the reference value of each safety parameter, comparing the real-time calculation result of the safety parameters with the reference value to obtain a comparison result, and generating alarm information and early warning information according to the comparison result; And the front end is used for displaying the distribution rule and the historical change trend of the safety parameters, and the alarm information and the early warning information. The invention provides a safe operation domain method facing train operation, which is used for a safe operation domain system facing train operation and comprises the following steps: real-time computing is carried out on safety parameters of virtual marshalling operation, the distribution rule of historical data of the safety parameters is analyzed, a reference value of each safety parameter is obtained through computing according to the distribution rule, a real-time computing result of the safety parameters is compared with the reference value to obtain a comparison result, and alarm information and early warning information are generated according to the comparison result; And storing the calculation process data and the result data of each safety parameter for virtual grouping operation into a database, and displaying the distribution rule, the historical change trend, the alarm information and the early warning information of the safety parameters through the front end. The embodiment of the invention also provides electronic equipment, which comprises a memory, a processor and a computer program stored in the memory and capable of