CN113247060A - Section state abnormity detection method and system - Google Patents
Section state abnormity detection method and system Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
- B61L27/04—Automatic systems, e.g. controlled by train; Change-over to manual control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
- B61L23/06—Control, warning or like safety means along the route or between vehicles or trains for warning men working on the route
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L25/00—Recording or indicating positions or identities of vehicles or trains or setting of track apparatus
- B61L25/02—Indicating or recording positions or identities of vehicles or trains
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Abstract
The invention discloses a method and a system for detecting abnormal state of a section, wherein the method for detecting the abnormal state of the section comprises the following steps: carrying out abnormity detection on the section with the changed section state; judging the train running direction in the train route when the abnormal detection result is normal; and after the running direction of the train is determined, detecting the direction abnormity of the section with the changed section state. The section state abnormity detection method and system disclosed by the invention can detect abnormity clearing and abnormal occupation. And judging whether the section state is abnormal or not through abnormality detection and direction abnormality detection, and judging whether exception detection is carried out or not according to an abnormality detection result and a direction abnormality detection result. Through the abnormity detection, the direction abnormity detection and the exception detection, the accuracy of the detection result can be ensured. And both the anomaly detection and the direction anomaly detection do not need to increase the hard time constraint of 15s, and the robustness and the real-time performance are obviously improved.
Description
Technical Field
The invention belongs to the technical field of rail transit, and particularly relates to a method and a system for detecting abnormal state of a section.
Background
Fig. 1 shows a flow chart of an existing occupancy loss alarm, which is mainly applied to a Train Dispatching Command System (TDCS). As shown in fig. 1, firstly, continuously acquiring a zone state, circularly checking whether the zone state is occupied in a front zone 15s when the zone state is changed from occupied to clear, and outputting an occupation loss alarm if the front zone is not checked to be occupied in the zone 15 s; if the front zone occupation is checked within 15s, the front zone occupation is proved to be normal occupation, and the zone state is continuously acquired. The occupation loss alarm is that when the train runs in the section, the occupation information of the red light band of the occupied block subarea disappears, and the occupation loss of the train section can be judged if no red light band occupation representation appears in the block subarea in front of the train for 15s continuously. The currently common occupation loss alarm has the following disadvantages: the method can only detect whether occupation loss occurs or not, cannot detect whether abnormal occupation occurs or not, and has hard time constraint and slow response speed.
Disclosure of Invention
In order to solve the above problem, the present invention discloses a method for detecting abnormal segment status, which comprises:
carrying out abnormity detection on the section with the changed section state;
judging the train running direction in the train route when the abnormal detection result is normal;
and after the running direction of the train is determined, detecting the direction abnormity of the section with the changed section state.
Further, the segment state includes two change states:
the section state is converted from non-occupied to occupied;
the sector state is changed from occupied to unoccupied.
Further, the abnormal detection step for converting the sector state from non-occupied to occupied is as follows:
determining whether the front section and the rear section of the section are occupied;
if the front section and the rear section are not occupied, determining that the occupation of the section is abnormal occupation; and if the front section or the rear section is occupied, determining that the occupation of the section is normal occupation.
Further, the abnormal detection step for converting the sector state from occupied to unoccupied is as follows:
determining whether the front section and the rear section of the section are occupied;
if the front section and the rear section are not occupied, determining that the section is abnormal; and if the front section or the rear section is occupied, determining that the section is cleared normally.
Further, the train running direction is determined by a guard signal, a zone signal or a zone direction lamp.
Further, the direction anomaly detection for converting the sector state from non-occupied to occupied includes:
determining whether the rear section of the section is occupied;
if the rear section of the section is not occupied, determining that the occupation of the section is abnormal occupation; and if the rear section of the section is occupied, determining that the section is occupied normally.
Further, the direction anomaly detection for converting the sector state from occupied to unoccupied comprises:
determining whether the front section of the section is occupied;
if the front section of the section is not occupied, determining that the section is abnormal; and if the front section of the section is occupied, determining that the section is cleared normally.
Furthermore, before performing the anomaly detection on the section with the changed section state, the method further includes:
and determining the section with the changed section state.
Still further, still include:
and when the abnormal detection or the direction abnormal detection result is abnormal, performing exception detection on the section with the changed section state.
Further, the anomaly detection and the directional anomaly detection are free of hard time constraints.
Furthermore, the exception detection means that when the section with the changed section state is detected to be abnormal, whether the section is a bad shunt section, an un-interlocked section, an interlocked section and an un-interlocked section combined section or a logic occupied section is rechecked, and if not, abnormal alarm information, namely abnormal occupation or abnormal clearing information is directly output; if so, re-checking an abnormal detection result or a direction abnormal detection result according to the configuration information of the section; for a bad shunt section, a non-interlocking section, a combined section of an interlocking area and a non-interlocking area or a logic occupied section, outputting no abnormal alarm information and only reminding a user to pay attention; the logic occupation section refers to logic occupation preset in advance and non-real occupation;
the exception detection is a configuration option, and a user configures according to actual conditions, and even if abnormal occupation or abnormal clearing is detected by a poor shunt section, an non-interlocking section, an interlocking section and a non-interlocking section combined section or a logic occupation section after the user configures, abnormal alarm information is not output.
A zone state anomaly detection system, comprising:
the abnormal detection unit is used for carrying out abnormal detection on the section with the changed section state;
the direction abnormity detection unit is used for detecting the direction abnormity of the section with the changed section state;
and the direction detection unit is used for judging the running direction of the train in the train route.
Still further, still include:
the comparison unit is used for determining the section with the changed section state;
and the exception detection unit is used for carrying out exception detection on the section with the changed section state.
Further, the abnormality detection unit is specifically configured to:
determining whether the front section and the rear section of the section are occupied;
if the front section and the rear section are not occupied, determining that the occupation of the section is abnormal occupation; and if the front section or the rear section is occupied, determining that the occupation of the section is normal occupation.
Further, the abnormality detection unit is further specifically configured to:
determining whether the front section and the rear section of the section are occupied;
if the front section and the rear section are not occupied, determining that the section is abnormal; and if the front section or the rear section is occupied, determining that the section is cleared normally.
Further, the direction anomaly detection unit is specifically configured to:
determining whether the rear section of the section is occupied;
if the rear section of the section is not occupied, determining that the occupation of the section is abnormal occupation; and if the rear section of the section is occupied, determining that the section is occupied normally.
Further, the direction anomaly detection unit is further specifically configured to:
determining whether the front section of the section is occupied;
if the front section of the section is not occupied, determining that the section is abnormal; and if the front section of the section is occupied, determining that the section is cleared normally.
Compared with the prior art, the invention has the beneficial effects that: a method and a system for detecting abnormal state of a section can detect abnormal clearing and abnormal occupation. And judging whether the section state is abnormal or not through abnormality detection and direction abnormality detection, and judging whether exception detection is carried out or not according to an abnormality detection result and a direction abnormality detection result. Through the abnormity detection, the direction abnormity detection and the exception detection, the accuracy of the detection result can be ensured. And both the anomaly detection and the direction anomaly detection do not need to increase the hard time constraint of 15s, and the robustness and the real-time performance are obviously improved.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
Fig. 1 shows a flow diagram of an existing occupancy loss alarm;
FIG. 2 illustrates a block state anomaly detection flow diagram according to an embodiment of the present invention;
fig. 3 shows a shunting route section state anomaly detection flowchart according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The yard indicating data includes state information of all the devices managed by the interlocking system, such as the switch indicating state, the locking state, the abnormal information, the section occupation state and the like, which are collectively referred to as the device state. Wherein, the switch indication state comprises positioning and reverse.
The interlocking system collects the state information of the station yard equipment in real time and then integrates the state information into an appointed complete data packet or an incremental data packet to be sent out. The complete data packet or the incremental data packet is processed in different ways, and the effect is the same, and the data packet includes all the state information of the whole device list.
The status information of all devices in the interlock system is changed at any time, so that one yard of stations represents the data and only represents the status information of all devices at the sending time, and the next yard of stations represents the data and represents the status of all devices at the next time. The yard representation is thus in frames of status information for all devices at a particular time in the data. The station field representation data of the previous frame represents the state information of all the devices at the immediately previous moment, the station field representation data of the current frame represents the state information of all the devices at the moment, and the station field representation data of the next frame represents the state information of all the devices at the immediately next moment. The time interval between frames in current interlock systems is roughly around 100 milliseconds.
FIG. 2 shows a block state anomaly detection flow diagram according to an embodiment of the invention. As shown in fig. 2, the method for detecting abnormal zone status in the present embodiment includes the following steps:
carrying out abnormity detection on the section with the changed section state;
judging the train running direction in the train route when the abnormal detection result is normal;
and after the running direction of the train is determined, detecting the direction abnormity of the section with the changed section state.
Before the abnormal detection is performed on the section with the changed section state, the method further comprises the following steps:
and determining the section with the changed section state.
Illustratively, the current segment with a changed segment status can be determined by receiving yard representative data collected by the interlock system. Preferably, the station field representation data of the current frame is compared with the station field representation data of the previous frame, so as to determine the current section with the changed section state.
The train running direction is determined by a protection signal machine, an interval signal machine or an interval direction lamp.
The segment states include two change states: the sector state is changed from unoccupied to occupied and the sector state is changed from occupied to unoccupied. A track circuit segment refers to one or more co-segmented contiguous devices.
According to the two changes of the section state, the abnormal detection is respectively carried out. The abnormal detection step for converting the section state from non-occupied state to occupied state is as follows:
determining whether the front section and the rear section of the section are occupied;
if the front section and the rear section are not occupied, determining that the occupation of the section is abnormal occupation; and if the front section or the rear section is occupied, determining that the occupation of the section is normal occupation.
For example, it may be determined whether the front section and the rear section of the current section are occupied by checking the current frame station representing data or the previous frame station representing data.
The present segment refers to a segment to be detected, i.e., a segment whose state changes. Since the railway line is one-dimensional, there are only two zones, a front zone and a rear zone, in each zone adjacent to the train, the zone where the train or train is running is the current zone, the zone where the train or train is about to arrive is the front zone, and the zone where the train or train is passing is the rear zone, according to the running direction of the train or train. In practical use, in a frame of station representation data determined, the turnout is positioned or not at a time point, and adjacent equipment is also two sections, so that the turnout is not distinguished in the description of the invention. The train is an integral body formed by the lead engine and the train, and has strict procedures before departure, such as train number inspection, commodity inspection, train inspection and the like before departure of the train, and procedures after receiving the train. The signal that the train is open is called a train signal, red indicates stop, and other signals with different colors such as green, yellow, double green or green yellow indicate different speeds, for example, double green indicates full speed. It is often required to drive strictly in accordance with the signaling and scheduling commands. The train speed is higher. The train consists of a shunting machine and vehicles, and can only drive in a specific section, and usually drives in a station. The signal that the shunting is open is called shunting signal, blue indicates parking and white indicates passing. The shunting requirement indicates the driving according to the signal, but the degree of strictness is lower than that of the train, for example, the shunting at the site may pass through a reverse route or may not pass through a route. Wherein the non-discharge path is realized by a single-lock turnout.
The reverse-arrangement route is a route which is normally arranged from the section A to the section B when shunting from the section A to the section B is needed, but is only arranged from the section B to the section A when equipment is not allowed or objective conditions are not allowed, namely the route is arranged from the section B to the section A, but the running direction of the train is from the section A to the section B, and the reverse-arrangement route is the case.
The non-arranged route means that when the shunting from the section A to the section B is needed, but the route from the section A to the section B cannot be processed, and the route from the section B to the section A cannot be processed (reverse route), the user may choose a single-lock turnout mode to pass the train. However, the single-lock turnouts are troublesome, usually, a plurality of turnouts are arranged on one route, a user needs to lock the turnouts one by one, and after a train passes through, the turnouts need to be unlocked one by one.
Non-route shunting: when a user needs to repeatedly switch the train from the section A to the section B and between the section B and the section A (such as on a cargo space in a cargo yard and on/off a small station train). Then the a-zone to B-zone and B-zone to a-zone opposite traffic signals (with opposite light locations, in opposite directions) may be opened, creating a non-route shunting condition.
Due to the fact that shunting is complex and high in uncertainty, no targeted technical detection means is available at present for detecting abnormal occupation and abnormal clearing.
The abnormal detection step for converting the sector state from occupied to unoccupied is as follows:
determining whether the front section and the rear section of the section are occupied;
if the front section and the rear section are not occupied, determining that the section is abnormal; and if the front section or the rear section is occupied, determining that the section is cleared normally.
For example, whether the front section and the rear section of the current section are occupied or not can be determined by checking the station field representation data of the current frame.
Judging whether the section state is abnormal or not through abnormal detection, and if the abnormal detection result is abnormal, proving that the section state is definitely occupied abnormally or cleared abnormally; if the abnormal detection result is normal, it cannot be proved that abnormal occupation does not occur or abnormal clearing does not occur, so that further direction abnormal detection judgment needs to be carried out. If the direction abnormity detection result is normal, the section state is proved to be definitely normal, and no abnormal condition exists; if the direction abnormity detection result is abnormal, the section state is proved to be definitely abnormally occupied or abnormally cleared. The abnormality detection can detect not only a train route but also a shunting route, but is not applicable to some special cases when used for detecting the train route, so direction abnormality detection is needed to further judge whether the section state is abnormal or not, and influence of some special cases is eliminated.
Exemplary, special case 1: in the process that the train T1 runs from the section A to the section E, when the train T1 runs to the section C, the section C is displayed to be occupied, but the section in front of the section E cannot pass due to an emergency, the train T1 needs to back to the section B to avoid the special condition of the emergency, at the moment, the section state acquired by the interlocking system is that the section C is displayed clearly, the section D is displayed to be unoccupied, and the section B is displayed to be occupied. Since the rear section of the section C is in the occupied state, the abnormality detection result is normal, and it is not possible to detect that the train T1 is abnormally cleared in the section C.
Special case 2: in the process that the train T1 and the train T2 respectively run from the section A to the section E and the train T1 runs in front of the train T2, when the train T1 runs to the section C, the train T2 runs to the section B, at the moment, the section C and the section B are both in an occupied state, in the next frame station representing data, the section C is displayed to be clear, the section D is not occupied, the section B is occupied (the T2 still runs in the section B), in the special case, for the abnormal clearing of the train T1 in the section C, the section B is displayed to be occupied as the T2 still runs in the section B, the abnormal clearing of the section T1 in the section C cannot be detected.
The above two special cases are only examples, and there are other special cases in reality that the segment state is abnormal, but the abnormality detection result is normal. Therefore, after the anomaly detection is passed, the direction anomaly detection needs to be carried out, so that the problem of detection result error caused by special conditions is avoided. The direction abnormity detection can only be applied to train route, the application range of the direction abnormity detection is the same as that of the existing occupation loss alarm, the operation direction of the shunting route can be determined through a signal lamp under the common condition, but the shunting route is likely to turn back midway, and the shunting route is complex, such as non-route and reverse-row route, and the operation direction of the shunting route cannot be accurately judged. Only when the train is determined to be on the route, the direction abnormality detection can be performed.
Because the direction of the train can not be turned in normal operation (namely, no emergency or major accident occurs), the train can only be turned in the station track, and the route running direction of the train can be judged according to the route direction or the interval signal machine and the like, but not the inertia, because the starting direction can not be judged according to the inertia.
After the train route running direction is determined, direction abnormity detection is respectively carried out according to two changes of the section state. The directional anomaly detection process is similar to anomaly detection except that anomaly detection is checking adjacent sections, and directional anomaly detection is detecting only one of the adjacent sections.
The direction abnormity detection of the section state converted from non-occupied state to occupied state comprises the following steps:
determining whether the rear section of the section is occupied;
if the rear section of the section is not occupied, determining that the occupation of the section is abnormal occupation; and if the rear section of the section is occupied, determining that the section is occupied normally.
For example, it may be determined whether the rear section of the current section is occupied by checking the current frame station representing data or the previous frame station representing data.
The direction anomaly detection that the sector state is changed from occupied to unoccupied comprises the following steps:
determining whether the front section of the section is occupied;
if the front section of the section is not occupied, determining that the section is abnormal; and if the front section of the section is occupied, determining that the section is cleared normally.
For example, whether the front section of the current section is occupied or not may be determined by examining the station field representation data of the current frame.
Through abnormal detection and direction abnormal detection, the accuracy of the detection result can be ensured, and dangerous events caused by some special conditions are avoided.
Also in the direction anomaly detection, there is no hard time constraint like 15s added, and there are more anomaly occupancy alarms than occupancy loss alarms.
A method for detecting a segment state abnormality, further comprising:
and when the abnormal detection or the direction abnormal detection result is abnormal, performing exception detection on the section with the changed section state.
The exception detection means that when the section with the changed section state is detected to be abnormal, whether the section is a specific section is rechecked, and if the section is not the specific section, abnormal alarm information, namely abnormal occupation or abnormal clearing information, is directly output; if the sector is the specific sector, the abnormal detection result or the direction abnormal detection result needs to be reviewed again according to the configuration information of the sector. The exception detection is only one configuration option, and the user manually configures according to actual conditions, the user configures specific sections possibly because of non-interlocked sections or bad shunting sections, and once the user configures the specific sections, even if the specific sections detect abnormal occupation or abnormal clearing, the specific sections are not alarmed, namely, the user is responsible for exemption. The configuration information refers to an equipment list file configured by a user, a specific section is noted, and when abnormal occupation or abnormal clearing is detected in the specific section, an alarm is not needed.
The specific section includes: a shunt failure zone, a non-interlocked zone, an interlocked zone and a non-interlocked zone combined zone, or a logically occupied zone, etc. The specific sections are exemplified by the four above, and other situations may exist in actual situations.
The track occupation state is acquired through the interlocking system, but the section state of some specific sections cannot be normally acquired, such as a section with poor shunting or an non-interlocking section, and the like, so that the specific sections cannot be detected to be abnormal through the section state abnormality detection method. Therefore, the exception detection is to detect whether an abnormal section is a specific section when an abnormality is detected, and if the abnormal section is the specific section (the track occupation state cannot be normally acquired), the exception detection is to simply remind a user of the abnormality without outputting an abnormality warning message.
The interlocking area and the non-interlocking area are combined with a section, such as a lead-in section of a lead-in machine, red light band abnormal clearing can occur at a lead-in section port, the clearing is caused by the fact that the lead-in machine enters the lead-in section, track circuits may not exist in the lead-in section, the interlocking system cannot acquire the section state, or the section state is not sent to a system applying the invention, such as a centralized control system, a TDCS system or a CTC system, and the like, under normal conditions, abnormal alarm information is not output, and only a user is reminded of paying attention.
The logic occupation zone refers to a zone which needs to be occupied by a red light band preset in advance, for example, a zone for launching a train from a water storage bin at an adjacent station of a Jixi marshalling station, the red light band can be lightened in an approaching zone of the Jixi marshalling station only by pressing the train into the water storage bin to a leaving zone, and the logic occupation red light band belongs to the interlocking system preset in advance, is not really occupied, does not need to output abnormal alarm information, and only reminds a user of paying attention.
If the abnormal detection or direction abnormal detection result is normal, exception detection is not needed to be carried out on the section with the changed section state; if the result of the anomaly detection or the direction anomaly detection is abnormal, the exception detection needs to be performed on the section with the changed section state. Therefore, when the abnormal state of the sector is detected, the detection result needs to be reviewed again based on the configuration information.
And after the detection is finished, outputting or not outputting abnormal alarm information according to the detection result, and only reminding the user to pay attention. The output results are of two types: one is abnormal alarm information, which prompts the user that the section state is abnormal and requires the user to confirm the processing; and the other method is that the abnormal alarm information is not output and only the attention of the user is reminded.
The abnormal detection can detect abnormal clearing, is equivalent to the existing occupation loss alarm, and can also detect abnormal occupation. Normally, abnormal occupation does not have potential safety hazard, but if the clearing occupation flickers, namely after the instantaneous occupation, the clearing is performed instantaneously, the potential safety hazard of bad shunting is often accompanied, and a user does not find the situation in time, so that one-time correction opportunity is lost. Abnormal occupancy usually has no direct potential safety hazard, but can cause errors of an information system, such as failure of a train number tracking system, and further cause user misoperation to generate accidents, so that detection and prevention of errors are also needed.
Both the abnormity detection and the direction abnormity detection do not need to increase the hard time constraint of 15s, and when the abnormity of the section state is detected, the waiting time of 15s is not needed, so that the response speed is improved. If the 15s wait time is reserved, unknown conditions may occur during the waiting time, which may cause system crash, such as power failure, and the possibility of an abnormality but no alarm may occur. Therefore, there is no 15s latency, and robustness can be improved. In fact, the prior art adds such delay to account for possible acquisition lag, whereas the present invention, by analyzing the yard-representative data of the interlock system, would show that all frame yard-representative data has lag if acquisition lag is found. And as long as the front and back order of all the frame station representation data is ensured to be correct, whether the section state is abnormal can be quickly detected, and the real-time property of abnormal detection is obviously improved.
Based on the above section state anomaly detection method, the present embodiment provides a section state anomaly detection system, including:
the abnormal detection unit is used for carrying out abnormal detection on the section with the changed section state;
the direction abnormity detection unit is used for detecting the direction abnormity of the section with the changed section state;
and the direction detection unit is used for judging the running direction of the train in the train route.
A zone state anomaly detection system, further comprising:
the receiving unit is used for receiving station yard representation data acquired by the interlocking system;
the comparison unit is used for determining the section with the changed section state; preferably, the station field representation data of the current frame is compared with the station field representation data of the previous frame to determine the current section with the changed section state.
And the exception detection unit is used for carrying out exception detection on the section with the changed section state.
An anomaly detection unit, specifically configured to:
determining whether the front section and the rear section of the section are occupied;
if the front section and the rear section are not occupied, determining that the occupation of the section is abnormal occupation; and if the front section or the rear section is occupied, determining that the occupation of the section is normal occupation.
An anomaly detection unit, specifically configured to:
determining whether the front section and the rear section of the section are occupied;
if the front section and the rear section are not occupied, determining that the section is abnormal; and if the front section or the rear section is occupied, determining that the section is cleared normally.
The direction anomaly detection unit is specifically configured to:
determining whether the rear section of the section is occupied;
if the rear section of the section is not occupied, determining that the occupation of the section is abnormal occupation; and if the rear section of the section is occupied, determining that the section is occupied normally.
The direction anomaly detection unit is specifically configured to:
determining whether the front section of the section is occupied;
if the front section of the section is not occupied, determining that the section is abnormal; and if the front section of the section is occupied, determining that the section is cleared normally.
The Train Dispatching Command System (TDCS) is a modern information system for realizing transparent command, real-time adjustment and centralized control of railway transportation dispatching at all levels on train operation. The dispatching centralized control system (CTC) is a TDCS upgrading version which is added with a plurality of functions of signal equipment centralized automatic control, route advance notice, conflict detection and the like on the basis of a TDCS system. The centralized control system is a comprehensive operation system which integrates the display and operation of different systems such as interlocking, hump, parking device and the like on a station yard representation interface in a system integration mode, is operated by an operator and faces to a railway marshalling station and an industrial and mining enterprise station.
Currently, the centralized control/TDCS/CTC system only detects the occupation loss on the train route. In order to solve the above problems, the present invention provides a method and a system for detecting abnormal segment status, which can detect abnormal clearing and abnormal occupation. And judging whether the section state is abnormal or not through abnormality detection and direction abnormality detection, and judging whether exception detection is carried out or not according to an abnormality detection result and a direction abnormality detection result. Through the abnormity detection, the direction abnormity detection and the exception detection, the accuracy of the detection result can be ensured. And both the anomaly detection and the direction anomaly detection do not need to increase the hard time constraint of 15s, and the robustness and the real-time performance are obviously improved.
Fig. 3 shows a shunting route section state anomaly detection flowchart according to an embodiment of the present invention. As shown in fig. 3, the present invention further provides a method for detecting abnormal status of shunting route section, including:
carrying out abnormity detection on the section with the changed section state;
and when the abnormal detection result is abnormal, performing exception detection on the section with the changed section state. And when the abnormal detection result is normal, not performing the exceptional detection.
The segment states include two change states:
the section state is converted from non-occupied to occupied;
the sector state is changed from occupied to unoccupied.
The abnormal detection step for converting the section state from non-occupied state to occupied state is as follows:
determining whether the front section and the rear section of the section are occupied;
if the front section and the rear section are not occupied, determining that the occupation of the section is abnormal occupation; and if the front section or the rear section is occupied, determining that the occupation of the section is normal occupation.
The abnormal detection step for converting the sector state from occupied to unoccupied is as follows:
determining whether the front section and the rear section of the section are occupied;
if the front section and the rear section are not occupied, determining that the section is abnormal; and if the front section or the rear section is occupied, determining that the section is cleared normally.
Before the abnormal detection is performed on the section with the changed section state, the method further comprises the following steps:
and determining the section with the changed section state.
And outputting a detection result after the detection is finished.
Anomaly detection has no hard time constraints.
The exception detection means that when the current section with the changed section state is detected to be abnormal, whether the current section is a shunting bad section, a non-interlocking section, an interlocking section and a non-interlocking section combined section or a logic occupied section is rechecked, and if not, abnormal alarm information, namely abnormal occupation or abnormal clearing information is directly output; if yes, the abnormal detection result needs to be reviewed again according to the configuration information of the section; for a bad shunt section, a non-interlocking section, a combined section of an interlocking area and a non-interlocking area or a logic occupied section, outputting no abnormal alarm information and only reminding a user to pay attention; the logic occupation section refers to logic occupation preset in advance and non-real occupation;
the exception detection is a configuration option, and is configured by a user according to actual conditions, and even if abnormal occupation or abnormal clearing is detected by a poor shunt section, an non-interlocking section, an interlocking section and a non-interlocking section combined section or a logic occupation section after the user configuration, abnormal alarm information is not output, which is equivalently exempt from responsibility and is taken charge of by the user.
Based on the method for detecting the abnormal state of the shunting route section, the invention also provides a system for detecting the abnormal state of the shunting route section, which comprises the following steps:
the abnormal detection unit is used for carrying out abnormal detection on the section with the changed section state;
the exception detection unit is used for carrying out exception detection on the section with the changed section state;
the comparison unit is used for determining the section with the changed section state; preferably, the station field representation data of the current frame is compared with the station field representation data of the previous frame to determine the current section with the changed section state.
An anomaly detection unit, specifically configured to:
determining whether the front section and the rear section of the section are occupied;
if the front section and the rear section are not occupied, determining that the occupation of the section is abnormal occupation; and if the front section or the rear section is occupied, determining that the occupation of the section is normal occupation.
An anomaly detection unit, specifically configured to:
determining whether the front section and the rear section of the section are occupied;
if the front section and the rear section are not occupied, determining that the section is abnormal; and if the front section or the rear section is occupied, determining that the section is cleared normally.
The method and the system for detecting the abnormal state of the shunting route section are used for detecting whether the section state in the shunting route is abnormal or not, and can detect the abnormal occupation and abnormal clearing problems of most shunting routes; the method can also be used for detecting abnormal occupation and abnormal clearing of the train route, but the condition of missing report exists.
The method and the system for detecting the abnormal state of the shunting route section are suitable for shunting routes, can detect abnormal occupation and abnormal clearing, can accurately detect whether the section state in the shunting route has abnormal conditions, solve the problem that whether the section state in the shunting route has the abnormal conditions or not and improve the safety of the shunting route. And the hard time constraint of 15s is not required to be added for the anomaly detection, and the robustness and the real-time performance are both obviously improved.
The method and the system for detecting the abnormal state of the section and the method and the system for detecting the abnormal state of the shunting route section, which are provided by the invention, are both suitable for systems which can receive station yard representation data sent by an interlocking system, such as a centralized control system, a TDCS system or a CTC system. The invention detects the section state based on the station field representation data is normal, and when the station field representation data is abnormal, the normal detection can not be realized. In addition, if the railway is in a construction state or a maintenance state, a problem of detection failure may also occur.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (17)
1. A method for detecting abnormal state of a segment, comprising:
carrying out abnormity detection on the section with the changed section state;
judging the train running direction in the train route when the abnormal detection result is normal;
and after the running direction of the train is determined, detecting the direction abnormity of the section with the changed section state.
2. The section state abnormality detection method according to claim 1, characterized in that the section state includes two kinds of change states:
the section state is converted from non-occupied to occupied;
the sector state is changed from occupied to unoccupied.
3. The section state abnormality detection method according to claim 2, characterized in that the abnormality detection step of changing the section state from non-occupied to occupied is as follows:
determining whether the front section and the rear section of the section are occupied;
if the front section and the rear section are not occupied, determining that the occupation of the section is abnormal occupation; and if the front section or the rear section is occupied, determining that the occupation of the section is normal occupation.
4. The section state abnormality detection method according to claim 2, characterized in that the abnormality detection step of changing the section state from occupied to unoccupied is as follows:
determining whether the front section and the rear section of the section are occupied;
if the front section and the rear section are not occupied, determining that the section is abnormal; and if the front section or the rear section is occupied, determining that the section is cleared normally.
5. The section state abnormality detection method according to claim 1, wherein the train running direction is determined by a guard signal, a zone signal, or a zone direction lamp.
6. The method according to claim 2, wherein the direction anomaly detection for converting the sector state from unoccupied to occupied comprises:
determining whether the rear section of the section is occupied;
if the rear section of the section is not occupied, determining that the occupation of the section is abnormal occupation; and if the rear section of the section is occupied, determining that the section is occupied normally.
7. The method according to claim 2, wherein the detecting of the direction anomaly that the sector status changes from occupied to unoccupied comprises:
determining whether the front section of the section is occupied;
if the front section of the section is not occupied, determining that the section is abnormal; and if the front section of the section is occupied, determining that the section is cleared normally.
8. The method for detecting segment status abnormality according to claim 1, further comprising, before the detecting an abnormality of the segment whose segment status has changed:
and determining the section with the changed section state.
9. The section state abnormality detection method according to claim 1, characterized by further comprising:
and when the abnormal detection or the direction abnormal detection result is abnormal, performing exception detection on the section with the changed section state.
10. The segment state anomaly detection method according to claim 1, wherein the anomaly detection and direction anomaly detection are free of hard time constraints.
11. The method according to claim 9, wherein the exception detection means that when the current segment whose segment state changes is detected to have an exception, whether the current segment is a faulty shunt segment, an un-interlocked segment, an interlocked segment and an un-interlocked segment combined segment or a logically occupied segment is rechecked, and if not, an exception alarm message, that is, an exception occupation or exception clearing message is directly output; if so, re-checking an abnormal detection result or a direction abnormal detection result according to the configuration information of the section; for a bad shunt section, a non-interlocking section, a combined section of an interlocking area and a non-interlocking area or a logic occupied section, outputting no abnormal alarm information and only reminding a user to pay attention; the logic occupation section refers to logic occupation preset in advance and non-real occupation;
the exception detection is a configuration option, and a user configures according to actual conditions, and even if abnormal occupation or abnormal clearing is detected by a poor shunt section, an non-interlocking section, an interlocking section and a non-interlocking section combined section or a logic occupation section after the user configures, abnormal alarm information is not output.
12. A block status abnormality detection system, characterized by comprising:
the abnormal detection unit is used for carrying out abnormal detection on the section with the changed section state;
the direction abnormity detection unit is used for detecting the direction abnormity of the section with the changed section state;
and the direction detection unit is used for judging the running direction of the train in the train route.
13. The zone state abnormality detection system according to claim 12, characterized by further comprising:
the comparison unit is used for determining the section with the changed section state;
and the exception detection unit is used for carrying out exception detection on the section with the changed section state.
14. The system according to claim 12, wherein the anomaly detection unit is specifically configured to:
determining whether the front section and the rear section of the section are occupied;
if the front section and the rear section are not occupied, determining that the occupation of the section is abnormal occupation; and if the front section or the rear section is occupied, determining that the occupation of the section is normal occupation.
15. The system according to claim 14, wherein the anomaly detection unit is further configured to:
determining whether the front section and the rear section of the section are occupied;
if the front section and the rear section are not occupied, determining that the section is abnormal; and if the front section or the rear section is occupied, determining that the section is cleared normally.
16. The system according to claim 12, wherein the direction anomaly detection unit is specifically configured to:
determining whether the rear section of the section is occupied;
if the rear section of the section is not occupied, determining that the occupation of the section is abnormal occupation; and if the rear section of the section is occupied, determining that the section is occupied normally.
17. The system according to claim 16, wherein the direction anomaly detection unit is further configured to:
determining whether the front section of the section is occupied;
if the front section of the section is not occupied, determining that the section is abnormal; and if the front section of the section is occupied, determining that the section is cleared normally.
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