Shunting overrun protection system and method

Abstract

A shunting overrun protection system and method. The shunting overrun protection system comprises: a vehicle-mounted device, connected to a train, and configured to send a train position report and control a train action, wherein the train position report comprises the current position of the train, the traveling direction of the train, and the serial number of a last relevant balise group (LRBG); an integrated train control and interlocking device, configured to send a shunting route state; and a radio block center system, connected to the vehicle-mounted device and the integrated train control and interlocking device, and configured to determine whether the LRBG is a suspicious LRBG, to generate, when the LRBG is a suspicious LRBG, balise list information on the basis of the current position of the train, the traveling direction of the train, and the shunting route state, and to send the balise list information to the vehicle-mounted device. By means of the solution of adding the radio block center system to determine whether the LRBG is a suspicious LRBG, a shunting protection function can be achieved when the arrangement of shunting protection balises is incomplete, and device and labor costs are reduced.

Description

Shunting risk-advancing protection system and method Technical Field

[0001] The present invention relates to the field of rail transportation technology, and in particular to a shunting over-run protection system and method. Background Art

[0002] There are two traditional methods for preventing shunting from over-advancing: the first involves deploying an active balise group that can send shunting danger packets (ETCS-132); when a train passes over a balise group with a shunting danger packet in shunting mode, the train applies emergency braking to stop, thereby implementing the over-advancing protection function. The second method involves ground personnel manually selecting the shunting mode on a shunting handheld console based on the shunting operation and sending the shunting protection information to a train operation safety monitoring and recording device (LKJ for short), which then performs the post-over-advancing braking protection function. Both of these methods require specialized control equipment to implement the shunting and over-advancing protection function, but these control devices are also complex and require high investment, and may even require manual intervention, resulting in a low level of automation. Technical issues

[0003] The present invention aims to provide a shunting overrun protection system and method. By adding a solution for a radio block center system to determine whether the nearest relevant transponder group is a suspicious LRBG, the shunting protection function can be implemented when the shunting protection transponders are not fully deployed, while reducing equipment and labor costs. Technical Solutions

[0004] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0005] A shunting and reckless advance protection system includes: an on-board device connected to a train, used to send a train position report and control the train's movement; the train position report includes the train's current position, the train's running direction and the number of the nearest relevant transponder group; an integrated train control and interlocking device, used to send the shunting route status; a wireless block center system, connected to the on-board device and the integrated train control and interlocking device, used to determine whether the nearest relevant transponder group is a suspicious LRBG and, when the nearest relevant transponder group is a suspicious LRBG, generate transponder list information based on the train's current position, the train's running direction and the shunting route status and send it to the on-board device.

[0006] Optionally, when the train passes over a transponder that does not exist in the transponder list information, the on-board device controls the train to stop.

[0007] Optionally, when the most recently associated balise group is a non-suspect LRBG, the radio block centre system does not generate the balise list information, so that the train passes through any balise.

[0008] Optionally, the transponder is a passive transponder.

[0009] Based on the same inventive concept, the present invention also provides a shunting and reckless advance protection method using the shunting and reckless advance protection system as described above, comprising: the integrated train control and interlocking equipment sends the shunting route status to the radio block center system; the on-board equipment sends the train position report to the radio block center system; the radio block center system determines whether the most recent relevant transponder group is a suspicious LRBG based on the current train position, the train running direction and the number of the most recent relevant transponder group in the train position report; when the most recent relevant transponder group is a suspicious LRBG, the radio block center system generates transponder list information based on the current train position, the train running direction and the shunting route status and sends it to the on-board equipment; and when a train passes over a transponder that does not exist in the transponder list information, the on-board equipment controls the train to stop.

[0010] Optionally, the step of the radio block center system determining whether the nearest relevant transponder group is a suspicious LRBG includes: when the number of the nearest relevant transponder group is known, the radio block center system determines whether the current position of the train is valid based on the current position of the train, the train running direction and the switch information; if valid, determining that the nearest relevant transponder group is a non-suspicious LRBG; if invalid, determining that the nearest relevant transponder group is a suspicious LRBG.

[0011] Optionally, the step of the RBC system determining whether the most recently associated transponder group is a suspicious LRBG further includes: when the number of the most recently associated transponder group is unknown, the RBC system determines that the most recently associated transponder group is a non-suspect LRBG.

[0012] Optionally, the step of the radio block center system generating transponder list information and sending it to the on-board device includes: when the nearest relevant transponder group is a suspicious LRBG, the radio block center system does not send an acceptance train message to the on-board device; if the on-board device does not receive the acceptance train message within a first preset time period, it retains the current nearest relevant transponder group and reports to the radio block center system that its own position is known; when the position of the on-board device is known, the radio block center system generates the transponder list information based on the current position of the train, the train running direction and the shunting route status, and sends it to the on-board device.

[0013] Optionally, the step of the on-board equipment controlling the train to stop includes: the on-board equipment receives and saves the transponder list information within a second preset time period; when the train passes a transponder that does not exist in the transponder list information, the on-board equipment generates an emergency braking signal and sends it to the train; the train receives the emergency braking signal and stops.

[0014] Optionally, the shunting and reckless advance protection method further includes: if the on-board equipment does not receive the transponder list information within the second preset time period, the saved transponder list information is cleared; when the train passes any transponder, the on-board equipment generates the emergency braking signal and sends it to the train; the train stops upon receiving the emergency braking signal.

[0015] Optionally, the shunting risk prevention method further includes: when the nearest relevant balise group is a non-suspect LRBG, the radio block center system does not generate the balise list information, so that the train passes through any balise.

[0016] Optionally, when the nearest relevant transponder group is a non-suspect LRBG, the radio block center system sends the train acceptance message to the on-board device; when the on-board device receives the train acceptance message within the first preset time period, it deletes the current nearest relevant transponder group and reports to the radio block center system that its own position is unknown; when the position of the on-board device is unknown, the radio block center system does not generate the transponder list information, so that the train passes through any transponder. Beneficial effects

[0017] The present invention provides a system and method for protecting against shunting from reckless advance. The radio block center system can determine whether the most recently related transponder group reported by the on-board equipment is a suspicious LRBG. When the most recently related transponder group is a suspicious LRBG, the system generates transponder list information based on the current position of the train, the train running direction, and the shunting route status, and sends the information to the on-board equipment. When the train passes a transponder that does not exist in the transponder list information, the on-board equipment controls the train to stop, thereby achieving protection against reckless advance of the train.

[0018] By adding a solution for the radio block center system to determine whether the nearest relevant transponder group is a suspicious LRBG, the present invention can implement a shunting protection function when the shunting protection transponders are not fully deployed. This avoids the radio block center system sending erroneous transponder list information due to the failure to update the position of the on-board equipment in a timely manner, thereby preventing the train from overtaking by passing over transponders that do not exist in the transponder list information.

[0019] In the present invention, when the number of the nearest relevant transponder group is known, the radio block center system determines whether the current train position is valid based on the current train position, train running direction and switch information; if valid, the radio block center system determines that the nearest relevant transponder group is a non-suspect LRBG; if invalid, the radio block center system determines that the nearest relevant transponder group is a suspect LRBG.

[0020] In the present invention, when the number of the nearest relevant balise group is unknown, the radio block center system determines that the nearest relevant balise group is a non-suspect LRBG; and when the nearest relevant balise group is a non-suspect LRBG, the radio block center system does not generate or send balise list information, so that the train can pass through any balise.

[0021] Compared with the traditional shunting and reckless advance protection method, the shunting protection transponder arranged in front of the shunting signal is changed from an active transponder to a passive transponder, which does not need to be connected to the ground electronic equipment through a dedicated tail cable, effectively reducing the laying difficulty and cost.

[0022] The present invention can also improve the degree of automation and safety factor of train shunting operations, reduce the workload of human participation in train shunting operations, and save labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] FIG1 is a schematic structural diagram of a shunting and over-advancing protection system provided by one embodiment of the present invention;

[0024] FIG2 is a flow chart of a method for preventing shunting from reckless driving provided by one embodiment of the present invention;

[0025] FIG3 is a logic diagram of a shunting risk-advancing protection method provided by an embodiment of the present invention. Best Mode for Carrying Out the Invention

[0026] The following is a further detailed description of a shunting and reckless advance protection system and method proposed by the present invention in conjunction with the accompanying drawings and specific embodiments. According to the following description, the advantages and features of the present invention will become clearer. It should be noted that the drawings are in a very simplified form and use non-precise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention. In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, please refer to the drawings. It should be noted that the structure, proportion, size, etc. illustrated in the drawings of this specification are only used to match the content disclosed in the specification, so that people familiar with this technology can understand and read them, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no technical significance. Any modification of the structure, change in the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the efficacy and purpose that can be achieved by the present invention.

[0027] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0028] In conjunction with Figure 1, this embodiment provides a shunting overrun protection system, including: an on-board device (ATP), connected to the train, used to send a train position report and control the train movement; and the train position report includes the current position of the train, the train running direction and the number of the most recently related transponder group, wherein the most recently related transponder group is the transponder group that the train passed last; a train control interlocking integrated device (TIS), used to send a shunting route status, and the shunting route status includes a route signal open and a route signal closed; a wireless block center (RBC) system, connected to the on-board device and the train control interlocking integrated device, used to determine whether the most recently related transponder group is a suspicious LRBG and, when the most recently related transponder group is a suspicious LRBG, generate transponder list information according to the current position of the train, the train running direction and the shunting route status and send it to the on-board device.

[0029] Specifically, the on-board equipment can send the train position report to the radio block center system in shunting mode, and the integrated train control and interlocking equipment can provide the shunting route status to the radio block center system in real time, so that the radio block center system can determine the shunting route of the train and generate and update the transponder list information, but the present invention is not limited to this.

[0030] Specifically, when the train passes a transponder that is not included in the transponder list information, the onboard equipment controls the train to stop. More specifically, when the train passes a transponder that is not included in the transponder list information, the onboard equipment switches to reckless mode and simultaneously generates and transmits an emergency braking signal to the train. After receiving the emergency braking signal, the train stops and the driver confirms the signal, and the emergency braking signal is released. Furthermore, when the nearest relevant transponder group is a non-suspect LRBG, the radio block center system does not generate the transponder list information, allowing the train to pass any transponder. Optionally, the transponder is a passive transponder, but the present invention is not limited to this.

[0031] In this embodiment, by adding a scheme for the radio block center system to determine whether the nearest relevant transponder group is a suspicious LRBG, the shunting protection function can be implemented when the shunting protection transponders are not fully deployed, thereby avoiding the radio block center system sending erroneous transponder list information due to the failure to update the position of the on-board equipment in a timely manner, thereby preventing the train from overtaking by passing a transponder that does not exist in the transponder list information.

[0032] Based on the same inventive concept, in combination with Figures 2 and 3, this embodiment also provides a shunting and reckless advance protection method using the shunting and reckless advance protection system described above, including: step S1, the integrated train control and interlocking equipment sends a shunting route status to the radio block center system; step S2, the on-board equipment sends a train position report to the radio block center system; step S3, the radio block center system determines whether the most recently associated transponder group is a suspicious LRBG based on the current train position, train running direction, and the number of the most recently associated transponder group in the train position report; step S4, if the most recently associated transponder group is a suspicious LRBG, the radio block center system generates transponder list information based on the current train position, the train running direction, and the shunting route status, and sends the information to the on-board equipment; and step S5, if the train passes over a transponder that does not exist in the transponder list information, the on-board equipment controls the train to stop.

[0033] Specifically, in step S1, the train control and interlocking integrated equipment can provide the shunting route status to the radio block center system in real time. In step S2, the onboard equipment can send the train position report to the radio block center system in shunting mode.

[0034] Specifically, step S3 includes: when the number of the nearest relevant transponder group is known, the radio block center system determines whether the current train position is valid based on the current train position, the train running direction, and the switch information; if valid (i.e., the actual train running path determined based on the current train position, the train running direction, and the switch information is consistent with the running path in the train operation plan), the radio block center system determines that the nearest relevant transponder group is a non-suspect LRBG; if invalid (i.e., the actual train running path determined based on the current train position, the train running direction, and the switch information is inconsistent with the running path in the train operation plan), the radio block center system determines that the nearest relevant transponder group is a suspicious LRBG. In some embodiments, step S3 also includes: when the number of the nearest relevant transponder group is unknown, the radio block center system determines that the nearest relevant transponder group is a non-suspect LRBG.

[0035] Specifically, step S4 includes: when the most recently associated transponder group is a suspicious LRBG, the RBC system does not send a train acceptance message (i.e., an M41 message) to the onboard device; if the onboard device does not receive the train acceptance message within a first preset duration, it retains the current most recently associated transponder group and reports to the RBC system that its own position is known; when the onboard device's position is known, the RBC system generates or updates the transponder list information based on the train's current position, the train's direction of travel, and the shunting route status, and sends it to the onboard device. Optionally, the first preset duration can be set according to specific needs.

[0036] Specifically, the radio block center system will update the transponder list information to the on-board device in real time based on the shunting route status provided by the train control and interlocking integrated device. Step S5 includes: the on-board device receives the transponder list information within a second preset time period and saves it locally; when the train passes a transponder that does not exist in the transponder list information, the on-board device generates an emergency braking signal and sends it to the train; the train stops upon receiving the emergency braking signal. In addition, if the on-board device does not receive the transponder list information within the second preset time period, the locally saved transponder list information will be cleared; after clearing the locally saved transponder list information, when the train passes any transponder, the on-board device will generate the emergency braking signal and send it to the train; the train stops upon receiving the emergency braking signal. Optionally, the second preset time period can be set according to specific needs.

[0037] 2 , the shunting risk prevention method further includes: step S6 , when the nearest relevant balise group is a non-suspect LRBG, the radio block center system does not generate the balise list information, so that the train passes through any balise.

[0038] Specifically, when the most recently associated transponder group is a non-suspect LRBG, the radio block center system sends the train acceptance message to the onboard device; when the onboard device receives the train acceptance message within the first preset time period, it deletes the current most recently associated transponder group and reports to the radio block center system that its own position is unknown; when the position of the onboard device is unknown, the radio block center system does not generate or send the transponder list information, so that the train can pass through any transponder.

[0039] In summary, this embodiment provides a shunting and reckless movement protection system and method. The radio block center system can determine whether the most recently associated transponder group reported by the onboard equipment is a suspicious LRBG. When the most recently associated transponder group is a suspicious LRBG, the system generates transponder list information based on the train's current position, train direction, and shunting route status and sends it to the onboard equipment. When the train passes over a transponder not included in the transponder list information, the onboard equipment controls the train to stop, thereby implementing reckless movement protection for the train. By adding a solution for the radio block center system to determine whether the most recently associated transponder group is a suspicious LRBG, this embodiment can implement shunting protection functions when shunting protection transponders are incompletely deployed. This avoids the radio block center system sending erroneous transponder list information due to the failure to timely update the position of the onboard equipment, thereby preventing the train from recklessly moving over transponders not included in the transponder list information. Compared with the traditional shunting and over-advance protection method, the shunting protection transponder arranged in front of the shunting signal in this embodiment is changed from an active transponder to a passive transponder, which does not need to be connected to the ground electronic equipment through a dedicated tail cable, effectively reducing the laying difficulty and laying cost; this embodiment can also improve the degree of automation and safety factor of train shunting operations, reduce the workload of human participation in train shunting operations, and save labor costs.

[0040] Although the present invention has been described in detail through the above preferred embodiments, it should be understood that the above description is not intended to limit the present invention. After reading the above description, various modifications and substitutions of the present invention will become apparent to those skilled in the art. Therefore, the scope of protection of the present invention should be defined by the appended claims.

Claims

1. A shunting and reckless advance protection system, characterized in that: include: Onboard equipment, connected to the train, for sending train position reports and controlling the train's movements; wherein the train position reports include the train's current position, the train's direction of travel, and the number of the nearest associated balise group; Train control and interlocking integrated equipment, used to send shunting route status; The radio block center system is connected to the on-board equipment and the integrated train control and interlocking equipment, and is used to determine whether the most recently associated transponder group is a suspicious LRBG and, when the most recently associated transponder group is a suspicious LRBG, generate transponder list information based on the current position of the train, the train running direction and the shunting route status and send it to the on-board equipment.

2. The shunting and reckless advance protection system according to claim 1, characterized in that: When the train passes over a transponder that does not exist in the transponder list information, the on-board device controls the train to stop.

3. The shunting and reckless advance protection system according to claim 1, characterized in that: When the most recently associated balise group is a non-suspect LRBG, the radio block centre system does not generate the balise list information, so that the train passes through any balise.

4. The shunting and reckless advance protection system according to claim 2 or 3, characterized in that: The transponder is a passive transponder.

5. A method for preventing shunting and reckless movement using the shunting and reckless movement prevention system according to any one of claims 1 to 4, characterized in that: include: The train control and interlocking integrated equipment sends the shunting route status to the radio block center system; The onboard equipment sends a train position report to the radio block center system; The radio block center system determines whether the most recently associated balise group is a suspicious LRBG based on the current train position, train running direction, and number of the most recently associated balise group in the train position report; When the most recently associated transponder group is a suspicious LRBG, the radio block center system generates transponder list information according to the current position of the train, the train running direction, and the shunting route status, and sends the information to the onboard device; as well as When a train passes over a transponder that does not exist in the transponder list information, the on-board device controls the train to stop.

6. The method for preventing shunting from reckless advance according to claim 5, characterized in that: The step of the RBC system determining whether the most recently associated transponder group is a suspicious LRBG comprises: When the number of the nearest relevant transponder group is known, the radio block center system determines whether the current position of the train is valid based on the current position of the train, the train running direction and the switch information; if valid, the nearest relevant transponder group is determined to be a non-suspicious LRBG; if invalid, the nearest relevant transponder group is determined to be a suspicious LRBG.

7. The method for preventing shunting from reckless advance according to claim 5, characterized in that: The step of the RBC system determining whether the most recently associated transponder group is a suspicious LRBG further includes: When the number of the most recently associated transponder group is unknown, the radio block center system determines that the most recently associated transponder group is a non-suspect LRBG.

8. The method for preventing shunting from reckless advance according to claim 5, characterized in that: The step of the radio block center system generating transponder list information and sending the information to the on-board device includes: When the most recently associated transponder group is a suspicious LRBG, the radio block center system does not send a train acceptance message to the onboard equipment; If the onboard device does not receive the train acceptance message within a first preset time period, it retains the current most recent relevant transponder group and reports to the radio block center system that its own position is known; When the position of the onboard device is known, the radio block center system generates the transponder list information according to the current position of the train, the train running direction and the shunting route status and sends it to the onboard device.

9. The method for preventing shunting from reckless advance according to claim 8, characterized in that: The steps of controlling the train to stop by the on-board equipment include: The vehicle-mounted device receives and saves the transponder list information within a second preset time period; When the train passes a transponder that does not exist in the transponder list information, the on-board device generates an emergency braking signal and sends it to the train; The train stops upon receiving the emergency brake signal.

10. The method for preventing shunting from reckless advance according to claim 9, characterized in that: Also includes: If the vehicle-mounted device does not receive the transponder list information within the second preset time period, the stored transponder list information is cleared; When the train passes any transponder, the onboard device generates the emergency braking signal and sends it to the train; The train stops upon receiving the emergency brake signal.

11. The method for preventing shunting from reckless advance according to claim 5, characterized in that: Also includes: When the most recently associated balise group is a non-suspect LRBG, the radio block centre system does not generate the balise list information, so that the train passes through any balise.

12. The method for preventing shunting from reckless advance according to claim 11, characterized in that: When the most recently associated transponder group is a non-suspect LRBG, the radio block center system sends the train acceptance message to the onboard equipment; When the onboard device receives the train acceptance message within the first preset time period, it deletes the current most recent related transponder group and reports to the radio block center system that its own position is unknown; When the position of the onboard device is unknown, the radio block center system does not generate the transponder list information so that the train passes through any transponder.

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