CN103632414A - Online monitoring and early warning device in subway train signaling system - Google Patents

Abstract

The invention discloses an on-line monitoring and early warning device for a subway train signaling system. The device includes: on-board equipment and a maintenance terminal; wherein the on-board equipment is used to centrally store the operation data of all equipment in the on-board signaling system , and output to the maintenance terminal; the maintenance terminal is used to conduct offline early warning of potential failures of the equipment in the vehicle signaling system through behavior pattern recognition, and realize the comprehensive integration of equipment in the vehicle signaling system through the random accumulation of a single behavior Screen online monitoring. By adopting the device disclosed by the invention, it is convenient for commissioning and maintenance personnel to detect the online operation status of the equipment in the on-board signaling system, and reduces the risk of failure of signaling equipment in the field of urban rail transit.

Description

A device for online monitoring and early warning of subway train signaling system

technical field

The invention relates to the field of urban rail transit, in particular to an on-line monitoring and early warning device for a subway train signaling system.

Background technique

In recent years, with the acceleration of urbanization, the field of urban rail transit has developed rapidly. As a signal system for railway transportation safety and efficiency, it has higher integration, more complex equipment, and greater information interaction in the field of urban rail transit. More device-dependent features. The failure of the urban rail transit signaling system has a significant impact on the daily work and life of urban residents: in 2013, when the signaling system of a line in Beijing failed for 2 hours, the subway company issued more than 3,000 late certificates; the ground passenger flow along the subway surged, and the bus group urgently More than 130 additional buses were opened for diversion. It can be seen that in the field of urban rail transit, the role of an online monitoring and early warning device for the signaling system cannot be underestimated.

With the advancement of technology, the line monitoring method of vehicle signal equipment is also being updated:

Early on-board signal monitoring mostly used the indicator lights and digital tubes on the board to display the operating status of the equipment. On the one hand, the types of faults displayed were very limited, and on the other hand, the requirements for fault analysis were high, and the indicators and digital tubes Failure of the tubes may also mislead signal maintenance personnel.

Later, with the application of portable computers, signal manufacturers began to use serial ports to send device operation data, and maintenance personnel can monitor and record the status of on-board signal equipment in real time through an external portable computer, but limited by the size and cost of storage devices As well as the internal space of the vehicle cabinet, the detailed equipment status can only be sent to the portable computer for storage, and cannot be stored inside the vehicle signal equipment. This has caused the embarrassing situation of "I can't remember the equipment failure, and I may not be able to catch the failure when checking with the car".

At present, foreign signal manufacturers have already applied the centralized recording of the status of vehicle signal equipment. Generally, an interface recording unit is independent from the vehicle signal equipment. The interface unit between the on-board signal equipment and the ground equipment is used, on the one hand, some safety-related data are simply recorded.

However, this method still has major defects: 1) It is impossible to conduct offline analysis and early warning of records: it is impossible to comprehensively analyze the data of all equipment, let alone analyze the operating status of all equipment to comprehensively analyze possible faults Early warning; 2) Only simple double-viewing of communication data: only original package double-viewing of the data sent by the on-board signal equipment to the interface recording unit can be performed, and the specific information units of different devices cannot be combined and viewed flexibly, nor can Sort according to the desired priority. Because the communication content is generally large, and the communication cycle is very short (generally, the communication cycle of an on-board subunit is on the order of hundreds of milliseconds), which results in a lot of online monitoring data and fast update speed. In this case, maintenance/ It is easy for debuggers to miss the state changes of the concerned information units when monitoring online.

Contents of the invention

The purpose of the present invention is to provide a device for on-line monitoring and early warning of the subway train signal system, which facilitates the detection of the online operation of the equipment in the on-board signal system by debugging and maintenance personnel, and reduces the risk of signal equipment failure in the urban rail transit field .

The purpose of the present invention is achieved through the following technical solutions:

An online monitoring and early warning device for a subway train signal system, the device includes: on-board equipment and a maintenance terminal;

Wherein, the vehicle-mounted device is used to centrally store the operation data of all devices in the vehicle-mounted signaling system, and output it to the maintenance terminal;

The maintenance terminal is used to conduct offline early warning of potential failures of equipment in the vehicle signaling system through behavior pattern recognition, and realize comprehensive screening and online monitoring of equipment in the vehicle signaling system through random accumulation of a single behavior; wherein, the behavior A pattern contains several behaviors.

It can be seen from the above-mentioned technical solution provided by the present invention that the off-line analysis and early warning of the on-board signaling system can be realized by means of behavior pattern recognition, which can detect and deal with equipment that may fail early, thereby reducing the failure of signal equipment in the urban rail transit field. On the other hand, the on-line monitoring of on-board signal equipment is realized through the random accumulation of a single behavior, which facilitates debugging and maintenance personnel to detect the online operation of on-board signal equipment, and overcomes the difficulty of human eyes in the case of large data and high refresh rate. The ills of suspicious data changes.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For Those of ordinary skill in the art can also obtain other drawings based on these drawings on the premise of not paying creative efforts.

Fig. 1 is a schematic diagram of a device for on-line monitoring and early warning of a subway train signaling system provided by Embodiment 1 of the present invention;

FIG. 2 is a flow chart of offline early warning based on behavior pattern recognition provided by Embodiment 1 of the present invention;

FIG. 3 is a flow chart of online comprehensive monitoring based on behavior pattern recognition provided by Embodiment 1 of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Embodiment one

FIG. 1 is a schematic diagram of an online monitoring and early warning device for a subway train signaling system provided by Embodiment 1 of the present invention. As shown in Figure 1, the device mainly includes: vehicle-mounted equipment 11 and maintenance terminal 12;

Wherein, the vehicle-mounted device 11 is configured to centrally store the operation data of all devices in the vehicle-mounted signaling system, and output it to the maintenance terminal;

The maintenance terminal 12 is used to conduct off-line early warning of potential failures of equipment in the vehicle signaling system by means of behavior pattern recognition, and realize comprehensive screening online monitoring of vehicle signaling equipment through random accumulation of a single behavior; wherein, the behavior pattern contains several behaviors.

Further, the vehicle-mounted device 11 includes: a central main control unit 111, and a serial processing unit 112, an auxiliary communication unit 113, an acquisition input unit 114, and a power supply unit 115 respectively connected to the central main control unit 111;

The serial processing unit 112 and the auxiliary communication unit 113 are respectively used to provide the central main control unit 111 with serial and Ethernet data exchange channels with devices in the vehicle signaling system;

The collection input unit 114 is used to collect the external relay state for the central main control unit 111;

The power supply unit 115 is configured to supply power to the central main control unit 111 .

In practical application, the central main control unit 111 , serial processing unit 112 , auxiliary communication unit 113 , collection and input unit 114 and power supply unit 115 can be boards and placed in the vehicle signal cabinet.

The maintenance terminal 12 can be a portable device, and can obtain the operation data (for example, configuration, log, etc.) of the equipment (for example, ATP, ATO, etc.) etc.), and then realize the functions of online monitoring and offline early warning.

In order to facilitate further introduction of the present invention, the implementation manners of online monitoring and offline early warning will be specifically introduced below.

The maintenance terminal 12 in the embodiment of the present invention can realize online monitoring and offline early warning based on behavior pattern recognition.

1. Offline early warning of potential failures of equipment in the vehicle signaling system based on behavior pattern recognition.

After the maintenance terminal 12 obtains the operation data of the equipment in the vehicle signal system, the maintenance/debugging personnel selects the corresponding behavior mode according to the actual needs. The behavior mode can be preset, or a new behavior mode can be temporarily edited.

The behavior pattern described in the embodiment of the present invention may contain several behaviors; wherein, each behavior may include the following elements:

The type of information unit; for example, speed, position, braking force, acceleration, wireless signal strength, etc.

The source of the information unit; this is the source of the information unit, for example, ATP, ATO, etc.

The target value related to the information unit type; when the information unit type is determined, the system will automatically perform a rationality check on the target value according to the information unit type; for example, the current information unit type is speed, and the target value is 45 km/h, can pass the reasonableness test.

The comparison strategy for the target value; for example, "greater than", "less than", "equal to" and fuzzy comparison of approximate values; wherein, the fuzzy comparison of approximate values needs to further determine the fuzzy interval.

The comparison strategy for said target value and the manner in which the behavior occurs or persists; for example, "occurs n times in a row", "always yes", "always no", etc.

Maintenance/debugging personnel can edit the above elements of each behavior according to actual needs; after editing multiple behaviors in sequence, they can form a sequential tree branch of a behavior, that is, a behavior pattern. Moreover, when a behavior pattern is manually edited, it can be saved for reuse, and the behavior pattern can be used for data analysis by directly selecting or searching the name of the corresponding behavior to select.

After setting the corresponding behavior mode, offline early warning analysis can be carried out. Specifically, as shown in Figure 2, after determining the start and end time, the operation data of the equipment in the vehicle signal system is comprehensively identified and matched according to the behavior mode, and the faults that have occurred and may occur are presented in the form of a report to realize potential faults offline early warning.

Wherein, the comprehensive identification includes: determining the scope of the data to be processed according to the time of the operation data of the equipment in the vehicle signal system and the source of the information unit, and performing data synthesis and conversion processing on the determined data to be processed in a multi-threaded manner, Obtaining a library to be processed; the matching calculation includes: using a single behavior in the behavior pattern to perform matching identification on the data in the library to be processed, and analyzing the matching identification result based on the fault reference library.

The fault reference library is a built-in threshold library based on different information sources and different information unit types, combined with signal equipment failure experience, so that the recognition accuracy is higher and more professional.

In addition, the thread pool technology is used in the above analysis process, which can overcome the problem of low running speed when processing large data.

2. Realize comprehensive screening and online monitoring of equipment in the vehicle signal system based on random accumulation of a single behavior.

The embodiments of the present invention aim at the online monitoring of the equipment in the vehicle signal system, which has the characteristics of large data volume and fast refresh frequency, and gather all the signal equipment on the vehicle into one interface for online monitoring; and the embodiments of the present invention use random accumulation of a single behavior as Debugging/maintenance personnel provide a set of concise and practical online monitoring strategies, which allow users to freely combine and sort data from different information sources and different information unit types conveniently, making online monitoring more comprehensive while taking care of it. targeted.

In actual use, the maintenance terminal 12 displays all real-time data of signal equipment in real time at all times. On the online monitoring interface, users can flexibly open, close, drag the size of the display area, and place real-time status data from different information sources in different positions. , In addition, the display of data is an intuitive and easy-to-understand human language explained by the explanation mechanism, so that the purpose of centralized monitoring of all real-time data from multiple information sources on the same interface is realized, and comprehensiveness is taken care of.

At the same time, through the selection mechanism of a single behavior, users can choose the behavior they care about. After selecting and confirming multiple behaviors, the program will generate a floating box to conduct combined online monitoring of different information unit types from different data sources , which is different from the behavior pattern during early warning. The behavior pattern composed of multiple behaviors during early warning is ordered, but the multiple behaviors in this item are not in sequence, and the order of the multiple behaviors is no longer considered . In addition, the user can also flexibly sort the selected behaviors in the floating frame by dragging the mouse, sequentially clicking and sorting, etc., which is convenient for users to compare during online monitoring.

Specifically, as shown in Figure 3, the system selects multiple single actions according to the user's input instructions, and determines the source and type of the information unit of the single action respectively; according to the information determined above, the corresponding multiple information units are obtained, The plurality of information units are analyzed (that is, the intuitive and easy-to-understand human language explained by the explanation mechanism) and then displayed respectively, so as to realize the comprehensive screening and online monitoring of the on-board signal equipment.

The embodiment of the present invention realizes the off-line analysis and early warning of the on-board signaling system based on behavior pattern recognition, which can detect and deal with equipment that may fail early, thereby reducing the risk of failure of signaling equipment in the urban rail transit field; on the other hand, through The random accumulation of a single behavior realizes the on-line monitoring of the on-board signaling equipment, which facilitates the testing of the online operation of the on-board signaling equipment by debugging and maintenance personnel, and overcomes the disadvantage that it is difficult for human eyes to find suspicious data changes in the case of large data and high refresh rate.

Those skilled in the art can clearly understand that for the convenience and brevity of description, only the division of the above-mentioned functional modules is used as an example for illustration. In practical applications, the above-mentioned function allocation can be completed by different functional modules according to needs. The internal structure of the device is divided into different functional modules to complete all or part of the functions described above.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person familiar with the technical field can easily conceive of changes or changes within the technical scope disclosed in the present invention. Replacement should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.

Claims (5)

1. subway train signal system on-line monitoring and a prior-warning device, is characterized in that, this device comprises: mobile unit and maintenance terminal;

Wherein, described mobile unit, for the service data of described cab signal system all devices is carried out to centralized stores, and exports described maintenance terminal to;

Described maintenance terminal, carries out off-line early warning for the mode by behavior pattern recognition to the incipient fault of cab signal devices in system, and by the random cumulative Integrated Selection on-line monitoring of realizing cab signal devices in system of single behavior; Wherein, in described behavior pattern, comprise several behaviors.

2. device according to claim 1, it is characterized in that, each behavior comprises: message unit type, message unit source, the desired value relevant to described message unit type, to the comparison strategy of described desired value and behavior appearance or lasting mode.

3. device according to claim 1, is characterized in that, the described mode by behavior pattern recognition is carried out off-line early warning to the incipient fault of cab signal devices in system and comprised:

According to behavior pattern, the service data of cab signal devices in system carried out comprehensive identification and mated calculating, and presenting in the mode of form the fault that occurs and may occur, realizing the early warning of incipient fault off-line;

Wherein, described comprehensive identification comprises: the scope of determining pending data according to the time of the service data of cab signal devices in system and message unit source, and the pending data of determining are carried out to aggregation of data and conversion process according to the mode of multithreading, obtain pending storehouse;

Described coupling is calculated and is comprised: utilize the single behavior in described behavior pattern to mate identification to the data in described pending storehouse, and described coupling recognition result is analyzed with reference to storehouse based on fault; Wherein, described fault is according to different information sources and different message unit type with reference to storehouse, and the built-in threshold library of binding signal equipment failure experience.

4. device according to claim 1, is characterized in that, the described random cumulative Integrated Selection on-line monitoring of realizing cab signal devices in system by single behavior comprises:

According to user's input instruction, select a plurality of single behaviors, and determine respectively message unit source and the message unit type of described single behavior;

A plurality of message units corresponding according to above-mentioned definite acquisition of information, and show respectively after described a plurality of message units are resolved, realize the Integrated Selection on-line monitoring of cab signal devices in system.

5. according to the device described in claim 1-4 any one, it is characterized in that, described mobile unit comprises: central primary control unit, and the serial processing unit, secondary communication unit, Gather and input unit and the power supply unit that are connected with described central primary control unit respectively;

Described serial processing unit and described secondary communication unit, being respectively used to provides serial and the Ethernet data interchange channel with described cab signal devices in system for described central primary control unit;

Described Gather and input unit, is used to described central primary control unit to gather outside relay state;

Described power supply unit, is used to the power supply of described central primary control unit.

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