A method and system for automatically detecting track crossing

Abstract

The present invention belongs to the technical field of railway safety monitoring, and relates to a method and system for automatically detecting track passing, including: an axle counting device is arranged in front of the turnout, and an axle counting device is arranged inside each track signal; the axle counting device in front of the turnout counts the number of axles when the train passes, and if the axle counting device on any track is equal to the axle counting device before the turnout, it is considered that the train has passed the mark; after a preset time, if the axle counting device in front of the turnout is not equal to the axle counting device inside the track signal, it is considered that the train has not passed the mark; automatically detect whether the signal on any track is open, if the signal is not open, and a train is leaving, it is considered that the train has slipped. The promotion and application of the scheme of the present invention can greatly improve the level of railway transportation safety management, which is of great significance to ensuring driving safety and improving transportation efficiency, and will play an important role in transportation production.

Description

Technical Field

[0001] The invention relates to a method and system for automatically detecting track crossing, belonging to the technical field of railway safety monitoring. Background Art

[0002] When the track circuit equipment in the station works normally, the station operator can judge whether the train has passed the warning mark by the track circuit status on the control console. However, the working status of the track circuit in the station is sometimes affected by the change of the surface resistance of the rail. Once there are no trains passing for many consecutive days due to humid weather, the track surface will rust (or due to the presence of other insulating materials on the track surface), which will cause the track circuit to branch poorly when the train passes. The station operator cannot accurately judge whether the incoming train has passed the warning mark based on the track circuit status, and the entire train will enter the station completely. In this case, when the train passes by the line, it may cause a major safety accident of side collision of the train.

[0003] Similarly, due to poor track circuit shunting, once an incoming train slips for some reason, the station driving staff will not be able to find it in time, which will cause a serious accident of the train running away and endanger the driving safety. At present, there is no effective monitoring method to solve this problem. Summary of the invention

[0004] In view of the above problems, the object of the present invention is to provide a method and system capable of automatically detecting when a train entering a station passes a warning mark.

[0005] In order to achieve the above-mentioned purpose, the present invention proposes the following technical scheme: a method for automatically detecting track passing, comprising: setting an axle counting device in front of the switch, and setting an axle counting device on the inner side of each track signal; the axle counting device in front of the switch counts the number of axles when the train passes, if the axle number counted by the axle counting device on any track is equal to the axle number counted in front of the switch, it is considered that the train has passed the mark; after a preset time, if the axle number counted by the axle counting device in front of the switch is not equal to the axle number counted by the axle counting device on the inner side of the track signal, it is considered that the train has not passed the mark; automatically detect whether the signal on any track is open, if the signal is not open and a train has left, it is considered that the train has escaped.

[0006] Furthermore, if the train fails to pass the mark or a train runaway occurs, an alarm signal is sent.

[0007] The present invention also discloses an automatic detection system for track over-marking, comprising: an axle counting device, an indoor control unit and a station control station; the axle counting device is used to detect the number of counted axles or the number of counted axles of a train; the indoor control unit is used to process data from the signal machine and the axle counting device to determine whether a train has passed the mark and whether a train has slipped; the station control station is used to manage and control the judgment result of the indoor control unit and issue an alarm based on the judgment result.

[0008] Furthermore, the axle counting device includes at least two wheel sensors, one of which is arranged in front of the turnout, and one wheel sensor is arranged inside each track signal, and each wheel sensor obtains a set of wheel axle information.

[0009] Furthermore, the indoor control unit includes a lightning protection distribution cabinet, an axle counting host and a switch, the input end of the lightning protection distribution cabinet is connected to the outdoor axle counting device, the output end of the lightning protection distribution cabinet is connected to the input end of the axle counting host, and the output end of the axle counting host is connected to the switch.

[0010] Furthermore, the axle counting host receives the axle information obtained by the axle counting devices in front of the turnout and on the track, compares the two sets of axle information, and if they match, controls the switch to output an instruction that the train has passed the mark; if they do not match within a preset time, controls the switch to output an instruction that the train has not passed the mark.

[0011] Furthermore, the indoor control unit also includes a signal machine status acquisition module, the input end of the signal machine status acquisition module is connected to the signal machine lighting relay contact, and the output end is connected to the axle counting host, for processing the signal of the signal machine.

[0012] Furthermore, the indoor control unit is connected to the station control room via a switch, and a host industrial computer is provided in the station control room, and the host industrial computer manages and controls the judgment result of the indoor control unit.

[0013] Furthermore, the switch in the indoor control unit is connected to the switch in the vehicle control room through an intra-station network channel or an intra-station optical fiber channel.

[0014] Furthermore, a host computer is arranged in the station control room, and the host computer includes an industrial control host and a display for data processing. The host industrial control computer is connected to the alarm module, and when a train fails to pass the mark or a train slips, the alarm module is activated to issue an alarm.

[0015] Since the present invention adopts the above technical scheme, it has the following advantages: At present, there are still a large number of poor track sections in the station branch throughout the railway, and it is more important and urgent to realize the automatic detection of trains completely passing the mark and running away. The promotion and application of the scheme of the present invention can greatly improve the level of railway transportation safety management, which is of great significance to ensuring driving safety and improving transportation efficiency, and will play an important role in transportation production. The scheme of the present invention fills the gap in the application field of the automatic detection system of train passing the mark and running away to a certain extent, and has broad prospects for promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1is a schematic diagram of a track crossing alarm method according to an embodiment of the present invention;

[0017] Figure 2 It is a structural schematic diagram of a track crossing automatic detection system in one embodiment of the present invention. DETAILED DESCRIPTION

[0018] In order to make those skilled in the art better understand the technical direction of the present invention, the present invention is described in detail through specific embodiments. However, it should be understood that the provision of specific embodiments is only for a better understanding of the present invention, and they should not be understood as limitations of the present invention. In the description of the present invention, it should be understood that the terms used are only for the purpose of description and cannot be understood as indicating or suggesting relative importance.

[0019] In order to solve the problem in the prior art that the train has not completely passed the mark and the train has runaway and cannot be warned in advance, the present invention provides a method and system for automatically detecting track crossing the mark, which realizes automatic inspection of the train position by setting an axle counting device. The axle counting device detects the axle information of the passing train by installing wheel sensors at both ends of the track section, thereby realizing automatic inspection of the idle occupancy status of the track section. Compared with the track circuit, the axle counting device does not rely on the rails for electrical signal transmission. Therefore, the rust of the rails, the contamination of the rail surface, and even the flooding of the track will not affect the reliable detection of the axle counting device, and the weaknesses of the track circuit can be completely avoided to realize reliable detection of the train position. Once an incoming train pops up, an alarm message will be issued in time to prompt the station driving personnel to take safety measures in time to avoid accidents.

[0020] Embodiment 1

[0021] like Figure 1 As shown, it is a schematic diagram of a track over-mark alarm method in an embodiment of the present invention. In this embodiment, the track over-mark alarm method includes: an axle counting device is arranged in front of the switch, and an axle counting device is arranged inside the signal on each track, and the axle counting device on the track is arranged behind the signal; the axle counting device in front of the switch counts the number of axles when the train passes, and if the axle counted by the axle counting device on any track is equal to the axle counted before the switch, it is considered that the train has passed the mark; after a preset time, if the axle counted by the axle counting device in front of the switch is not equal to the axle counted by the axle counting device inside the track signal, it is considered that the train has not passed the mark; automatically detect whether the signal on any track is open, if the signal is not open, and a train has left, it is considered that the train has escaped. Train leaving means that the wheels of the train have passed the axle counting device on the track, and the axle counting device has counted axles; the train leaving direction can be upward or downward.

[0022] If the train fails to pass the mark or the train slips, an alarm signal is sent. The alarm signal is an audible and visual alarm signal, such as a tweeter or lights of different colors, etc., but other methods can also be used for alarm as long as they can achieve the alarm effect.

[0023] Specifically, taking a standard three-track station as an example, an axle counting device JZ1 is installed at a preset position in front of the turnout, and the signals of the three tracks are S1, S2 and S3 respectively; the axle counting devices of the three tracks are JZ11, JZ7 and JZ3 respectively. That is, the signal S1 and the axle counting device JZ11 are located on the same track, the signal S2 and the axle counting device JZ7 are located on the same track, and the signal S3 and the axle counting device JZ3 are located on the same track. The axle counting devices of the same track are installed within a preset distance behind the signal. In this embodiment, it is preferably within one meter. That is, the axle counting device JZ11 is installed one meter behind the signal S1; the axle counting device JZ7 is installed one meter behind the signal S2; and the axle counting device JZ3 is installed one meter behind the signal S3. When the train moves from the axle counter JZ1 to the turnout direction, the axle counter JZ1 counts the number of axles. If the axle counter JZ3, axle counter JZ7 or JZ11 counts the same number of axles as the axle counter JZ1, the train is considered to have passed the mark. This is displayed on the display in the control room inside the train. It is a normal state for the train to have passed the mark, and no alarm is required. It only needs to display and store the state.

[0024] The axle counting device collects the signal opening conditions provided by the interlocking, automatically detects whether the signal is open, and further automatically detects whether the train is running normally or slipping. For example, if the signal S3 is not open, and the corresponding axle counting device JZ3 detects that the wheelset is running from right to left (i.e., the opposite direction of the forward direction), the train is considered to have slipped. If the train does not pass the mark normally, or if the train slips, an audible and visual alarm is used to warn.

[0025] Embodiment 2

[0026] Figure 2 FIG. 1 is a schematic diagram of the structure of an automatic detection system for track crossing a mark in one embodiment of the present invention. Figure 2 As shown, this embodiment discloses a track crossing automatic detection system, including: an axle counting device, an indoor control unit and a station control station;

[0027] Axle counting equipment is used to detect the number of axles counted in or out of a train; the signal machine and axle counting equipment are installed outdoors.

[0028] The indoor control unit is used to process the data of the signal and axle counting equipment to determine whether the train has passed the mark and whether the train has slipped; the station control station is used to control the judgment results of the indoor control unit and issue an alarm based on the judgment results. The indoor control unit and the station control station are set up indoors.

[0029] In this embodiment, the axle counting device includes at least two wheel sensors and two cable terminal boxes, each wheel sensor is connected to a corresponding cable terminal box, one wheel sensor is arranged in front of the turnout, and a wheel sensor is arranged inside each track signal, and each wheel sensor obtains a set of wheel axle information. The wheel sensor can be a weight sensor, a pressure sensor, etc., but is not limited thereto.

[0030] The indoor control unit includes a lightning protection distribution cabinet, an axle counting host, a switch signal machine, a status acquisition module and a signal power supply screen. The input end of the lightning protection distribution cabinet is connected to the axle counting device, and the output end of the lightning protection distribution cabinet is connected to the input end of the axle counting host machine, which is used to protect the indoor control unit from lightning and prevent the electronics therein from being interfered by lightning signals. The output end of the axle counting host machine is connected to the switch. The axle counting host machine receives the wheel axle information obtained by the axle counting device on the track before and after the turnout, compares the two sets of wheel axle information, and if they match, controls the switch machine to output an instruction that the train has passed the mark. If they do not match within a preset time, controls the switch machine to output an instruction that the train has not passed the mark. Matching in this embodiment means that the number of axles counted by the axle counting device on the track is equal to the number of axles counted before the turnout, and mismatching means that the number of axles counted by the axle counting device before the turnout is not equal to the number of axles counted by the axle counting device inside the track signal machine. The input end of the signal machine status acquisition module is connected to the signal machine, and the output end is connected to the axle counting host machine, which is used to process the signal of the signal machine; the signal power supply screen is connected to the signal machine, which is used to display the power supply status.

[0031] The indoor control unit is connected to the station control room through a switch. The station control room is equipped with an upper industrial computer, which controls the judgment results of the indoor control unit. A display is set in the car control room for data processing, which can present the processing results of the indoor control unit or the results after analysis and comparison by the upper industrial computer. The upper industrial computer is connected to the alarm module, and when the train fails to pass the mark or the train slips, the alarm module is started to alarm. The switch in the indoor control unit is connected to the switch in the car control room through the station network channel or the station fiber channel. The indoor control unit can transmit its data to the station control room, or download data from the station control room for analysis and reference. The indoor control unit can also be connected to the upper industrial computer through WiFi, local area network, etc., that is, it is not necessarily connected by wired communication, but can also be connected through a wireless network. If some smaller stations do not have corresponding station control rooms, the data of the indoor control unit can be transmitted to the upper-level station for unified management.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation of the present invention can still be modified or replaced by equivalents, and any modification or equivalent replacement that does not deviate from the spirit and scope of the present invention should be included in the protection scope of the claims of the present invention. The above content is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or replacements within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A method for automatically detecting track crossing, characterized in that: include: An axle counting device is installed in front of the turnout, and an axle counting device is installed inside each track signal; The axle counting device before the turnout counts the number of axles when the train passes. If the number of axles counted by the axle counting device on any track is equal to the number of axles counted before the turnout, the train is considered to have passed the mark. After the preset time, if the number of axles counted by the axle counting device in front of the turnout is not equal to the number of axles counted by the axle counting device inside the track signal, the train is considered to have not passed the mark; Automatically detect whether the signal on any track is open. If the signal is not open and a train is leaving, it is considered that the train has run away. The axle counting device comprises at least two wheel sensors, wherein one wheel sensor is arranged in front of the turnout, and one wheel sensor is arranged inside each track signal, and each wheel sensor acquires a set of wheel axle information; The axle counting device collects the signal opening conditions provided by the interlocking and automatically detects whether the signal is open, so as to further automatically detect whether the train is leaving normally or slipping away. If the signal is not open and the corresponding axle counting device detects that the wheelset is running in the opposite direction to the forward direction, the train is considered to have slipped away; if the train does not pass the mark normally, or the train slips away, an alarm signal is sent.

2. A track crossing automatic detection system, characterized in that: The method for automatically detecting track crossing as claimed in claim 1 comprises: an axle counting device, an indoor control unit and a station control station; The axle counting device is used to detect the number of counted axles or counted out axles of the train; The indoor control unit is used to process the data of the signal and the axle counting device to determine whether the train has passed the mark and whether the train has slipped; The station control station is used to manage and control the judgment results of the indoor control unit and issue an alarm based on the judgment results.

3. The track crossing automatic detection system according to claim 2, characterized in that: The indoor control unit includes a lightning protection distribution cabinet, an axle counting host and a switch. The input end of the lightning protection distribution cabinet is connected to the outdoor axle counting device, the output end of the lightning protection distribution cabinet is connected to the input end of the axle counting host, and the output end of the axle counting host is connected to the switch.

4. The track crossing automatic detection system according to claim 3, characterized in that: The axle counting host receives the wheel axle information obtained by the axle counting equipment in front of the turnout and on the track, compares the two sets of wheel axle information, and if they match, controls the switch to output an instruction that the train has passed the mark; if they do not match within a preset time, controls the switch to output an instruction that the train has not passed the mark.

5. The track crossing automatic detection system according to claim 3, characterized in that: The indoor control unit also includes a signal machine status acquisition module, the input end of the signal machine status acquisition module is connected to the signal machine lighting relay contact, and the output end is connected to the axle counting host for processing the signal of the signal machine.

6. The track crossing automatic detection system according to claim 3, characterized in that: The indoor control unit is connected to the station control room via a switch. A host industrial computer is provided in the station control room. The host industrial computer manages and controls the judgment result of the indoor control unit.

7. The track crossing automatic detection system according to claim 6, characterized in that: The switch in the indoor control unit is connected to the switch in the vehicle control room through an intra-station network channel or an intra-station optical fiber channel.

8. The track crossing automatic detection system according to claim 6, characterized in that: A host computer is arranged in the station control room, and the host computer includes an industrial control host and a display for data processing. The host industrial control computer is connected to the alarm module, and when a train fails to pass the mark or a train slips, the alarm module is activated to issue an alarm.

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