Shunting overrun protection system and method

Abstract

Disclosed in the present disclosure are a shunting overrun protection system and method. The shunting overrun protection system includes: on-board equipment, connected to a train and configured to send a train position report and control the train to act, where the train position report includes a current train position, a train running direction and a serial number of a last relevant balise group; a train control center and interlocking integrated system, configured to send a shunting route status; and a radio block center system, connected to the on-board equipment and the train control center and interlocking integrated system, and configured to determine whether the last relevant balise group is a suspicious LRBG, generate balise list information according to the current train position, the train running direction and the shunting route status when the last relevant balise group is a suspicious LRBG and send the balise list information to the on-board equipment. According to the present disclosure, by means of the solution of adding the radio block center system to determine whether the last relevant balise group is a suspicious LRBG, a shunting protection function can be achieved when the arrangement of shunting protection balises is incomplete, and equipment and labor costs are reduced.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of rail traffic, and in particular to a shunting overrun protection system and method.BACKGROUND

[0002] There are two traditional shunting overrun protection methods. The first method is to arrange an active balise group capable of sending a shunting danger packet (ETCS-132). After a train passes a balise with the shunting danger packet in a shunting mode, the train will apply emergency braking to stop, thereby achieving an overrun protection function. The second method is that ground staff manually selects a shunting mode on a shunting handheld platform according to the shunting operation situation and sends shunting protection information to a train operation safety monitoring and recording device (short for LKJ), and the LKJ performs a braking protection function after overrun. By the above two methods, it is necessary to set up dedicated control equipment to achieve a shunting overrun protection function, and the control equipment is complex in structure and large in investment, even requiring manual participation, so the automation level is low.SUMMARY

[0003] An objective of the present disclosure is to provide a shunting overrun protection system and method. By means of the solution of adding the radio block center system to determine whether the last relevant balise group is a suspicious LRBG, a shunting protection function can be achieved when the arrangement of shunting protection balises is incomplete, and equipment and labor costs are reduced.

[0004] To achieve the above objective, the present disclosure is implemented through the following technical solutions: a shunting overrun protection system includes: on-board equipment, connected to a train and configured to send a train position report and control the train to act, where the train position report includes a current train position, a train running direction and a serial number of a last relevant balise group (LRBG); a train control center and interlocking integrated system, configured to send a shunting route status; and a radio block center system, connected to the on-board equipment and the train control center and interlocking integrated system, and configured to determine whether the last relevant balise group is a suspicious LRBG, generate balise list information according to the current train position, the train running direction and the shunting route status when the LRBG is a suspicious LRBG and send the balise list information to the on-board equipment.

[0005] Optionally, the on-board equipment controls the train to stop when the train passes a balise that is not present in the balise list information.

[0006] Optionally, when the last relevant balise group is a non-suspicious LRBG, the radio block center system does not generate the balise list information to enable the train to pass any balise.

[0007] Optionally, the balise is a passive balise.

[0008] Based on the same inventive concept, the present disclosure further provides a shunting overrun protection method using the above shunting overrun protection system, including: sending a shunting route status to a radio block center system by train control center and interlocking integrated system; sending a train position report to the radio block center system by the on-board equipment; determining, by the radio block center system, whether a last relevant balise group is a suspicious LRBG according to a current train position, a train running direction and a serial number of the last relevant balise group in the train position report; generating, by the radio block center system, balise list information according to the current train position, the train running direction and the shunting route status when the last relevant balise group is the suspicious LRBG, and sending the balise list information to the on-board equipment; and controlling the train by the on-board equipment to stop when the train passes a balise that is not present in the balise list information.

[0009] Optionally, the step of determining, by the radio block center system, whether the last relevant balise group is a suspicious LRBG includes: when the serial number of the last relevant balise group is known, determining, by the radio block center system, whether the current train position is valid according to the current train position, the train running direction and switch information; if yes, determining that the last relevant balise group is a non-suspicious LRBG; and if not, determining that the last relevant balise group is the suspicious LRBG.

[0010] Optionally, the step of determining, by the radio block center system, whether the last relevant balise group is a suspicious LRBG further includes: when the serial number of the last relevant balise group is unknown, determining, by the radio block center system, that the last relevant balise group is a non-suspicious LRBG.

[0011] Optionally, the step of generating, by the radio block center system, balise list information and sending the balise list information to the on-board equipment includes: when the last relevant balise group is the suspicious LRBG, not sending a train acceptance message to the on-board equipment by the radio block center system; if the on-board equipment does not receive the train acceptance message within a first preset duration, retaining the current last relevant balise group, and reporting to the radio block center system that the position of the on-board equipment is known; and when the position of the on-board equipment is known, generating, by the radio block center system, the balise list information according to the current train position, the train running direction and the shunting route status, and sending the balise list information to the on-board equipment.

[0012] Optionally, the step of controlling the train to stop by the on-board equipment includes: receiving the balise list information by the on-board equipment within a second preset duration, and saving the balise list information; when the train passes a balise that is not present in the balise list information, generating and sending an emergency braking signal to the train by the on-board equipment; and enabling the train to stop after receiving the emergency braking signal.

[0013] Optionally, the shunting overrun protection method further includes: if the on-board equipment does not receive the balise list information within the second preset duration, clearing the saved balise list information; when the train passes any balise, generating and sending the emergency braking signal to the train by the on-board equipment; and enabling the train to stop after receiving the emergency braking signal.

[0014] Optionally, the shunting overrun protection method further includes: when the last relevant balise group is a non-suspicious LRBG, not generating the balise list information by the radio block center system to enable the train to pass any balise.

[0015] Optionally, when the last relevant balise group is the non-suspicious LRBG, the radio block center system sends a train acceptance message to the on-board equipment; if receiving the train acceptance message within a first preset duration, the on-board equipment deletes the current last relevant balise group and reports to the radio block center system that the position of the on-board equipment is unknown; and when the position of the on-board equipment is unknown, the radio block center system does not generate the balise list information to enable the train to pass any balise.

[0016] Compared with the prior art, the present disclosure has at least one of the following advantages: the present disclosure provides the shunting overrun protection system and method. The radio block center system can determine whether the last relevant balise group reported by the on-board equipment is a suspicious LRBG. When the last relevant balise group is the suspicious LRBG, balise list information is generated according to the current train position, the train running direction and the shunting route status and sent to the on-board equipment. When the train passes a balise that is not present in the balise list information, the on-board equipment controls the train to stop, thereby achieving overrun protection of the train.

[0017] According to the present disclosure, by means of the solution of adding the radio block center system to determine whether the last relevant balise group is a suspicious LRBG, a shunting protection function can be achieved when the arrangement of shunting protection balises is incomplete, and the radio block center system can be prevented from sending wrong balise list information because the position of the on-board equipment is not updated in time, thereby preventing the train from passing the balise that is not present in the balise list information and avoiding the overrun situation.

[0018] According to the present disclosure, when the serial number of the last relevant balise group is known, the radio block center system determines whether the current train position is valid according to the current train position, the train running direction and switch information; if yes, the radio block center system determines that the last relevant balise group is a non-suspicious LRBG; and if not, the radio block center system determines that the last relevant balise group is the suspicious LRBG.

[0019] According to the present disclosure, when the serial number of the last relevant balise group is unknown, the radio block center system determines that the last relevant balise group is a non-suspicious LRBG; and when the last relevant balise group is the non-suspicious LRBG, the radio block center system does not generate or send the balise list information to enable the train to pass any balise.

[0020] According to the traditional shunting overrun protection method, the present disclosure has the advantages that a shunting protection balise arranged in front of a shunting signal is changed from the active balise to the passive balise, and the laying difficulty and the laying cost can be effectively reduced without a connection between a dedicated tail cable and ground electronic equipment.

[0021] According to the present disclosure, the automation degree and the safety coefficient of the train shunting operation can be increased, the workload of human participation in the train shunting operation can be reduced, and the labor cost can be saved.BRIEF DESCRIPTION OF THE DRAWINGS

[0022] FIG. 1 is a structural schematic diagram of a shunting overrun protection system according to an embodiment of the present disclosure; FIG. 2 is a flowchart of a shunting overrun protection method according to an embodiment of the present disclosure; and FIG. 3 is a logic diagram of a shunting overrun protection method according to an embodiment of the present disclosure. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] A shunting overrun protection system and method proposed by the present disclosure will be further described below in detail with reference to the accompanying drawings and the specific embodiments. The advantages and features of the present disclosure will become clearer from the following description. It should be noted that the accompanying drawings employ a very simplified form and all use non-precise proportions, and are only used for assisting in conveniently and clearly illustrating the objective of the embodiments of the present disclosure. To make the objectives, features and advantages of the present disclosure more comprehensible, please refer to the accompanying drawings. It should be noted that the structures, proportions, sizes and the like shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the limiting condition of implementation of the present disclosure, so it has no technical substantive meaning, and any modification of structure, change of proportional relationship or adjustment of size shall still fall within the scope covered by the disclosed technical content of the present disclosure without affecting the effect and objective of the present disclosure.

[0024] It should be noted that in this specification, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Furthermore, the term "comprises", "includes" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, object or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, object or equipment. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, object or equipment including the element.

[0025] As shown in FIG. 1, this embodiment provides a shunting overrun protection system, including: on-board equipment (ATP), connected to a train and configured to send a train position report and control the train to act, where the train position report includes a current train position, a train running direction and a serial number of a last relevant balise group(LRBG), and the last relevant balise group is the last balise group that the train passes; train control center and interlocking integrated system (TIS), configured to send a shunting route status, where the shunting route status includes route signal cleared and route signal closed; and a radio block center (RBC) system, connected to the on-board equipment and the train control center and interlocking integrated system, and configured to determine whether the last relevant balise group is a suspicious LRBG, generate balise list information according to the current train position, the train running direction and the shunting route status when the LRBG is a suspicious LRBG and send the balise list information to the on-board equipment.

[0026] Specifically, the on-board equipment can send the train position report to the radio block center system in a shunting mode, the train control center and interlocking integrated system 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, thereby generating and updating the balise list information, but the present disclosure is not limited to this.

[0027] Specifically, the on-board equipment controls the train to stop when the train passes a balise that is not present in the balise list information. More specifically, when the train passes a balise that is not present in the balise list information, the on-board equipment enters the overrun mode, and generates and sends an emergency braking signal to the train, the train stops after receiving the emergency braking signal, and the emergency braking signal can be relieved after confirmation by a driver. In addition, when the last relevant balise group is a non-suspicious LRBG, the radio block center system does not generate the balise list information, so that the train can pass any balise. Optionally, the balise is a passive balise, but the present disclosure is not limited to this.

[0028] According to this embodiment, by means of the solution of adding the radio block center system to determine whether the last relevant balise group is a suspicious LRBG, a shunting protection function can be achieved when the arrangement of shunting protection balises is incomplete, and the radio block center system can be prevented from sending wrong balise list information because the position of the on-board equipment is not updated in time, thereby preventing the train from passing the balise that is not present in the balise list information and avoiding the overrun situation.

[0029] Based on the same inventive concept, as shown in FIG. 2 to FIG. 3, this embodiment further provides a shunting overrun protection method using the above shunting overrun protection system, including: step S1: train control center and interlocking integrated system sends a shunting route status to a radio block center system; step S2: on-board equipment sends a train position report to the radio block center system; step S3: the radio block center system determines whether a last relevant balise group is a suspicious LRBG according to a current train position, a train running direction and a serial number of the last relevant balise group in the train position report; step S4: when the last relevant balise group is the suspicious LRBG, the radio block center system generates balise list information according to the current train position, the train running direction and the shunting route status, and sends the balise list information to the on-board equipment; and step S5: when the train passes a balise that is not present in the balise list information, the on-board equipment controls the train to stop.

[0030] Specifically, in step S1, the train control center and interlocking integrated system can provide the shunting route status to the radio block center system in real time. In step S2, the on-board equipment can send the train position report to the radio block center system in the shunting mode.

[0031] Specifically, step S3 includes: when the serial number of the last relevant balise group is known, the radio block center system determines whether the current train position is valid according to the current train position, the train running direction and switch information; if yes (that is, an actual train travel route determined according to the current train position, the train running direction and the switch information is consistent with a running route in a train running plan), the radio block center system determines that the last relevant balise group is a non-suspicious LRBG; and if not (that is, the actual train travel route determined according to the current train position, the train running direction and the switch information is not consistent with the running route in the train running plan), the radio block center system determines that the last relevant balise group is the suspicious LRBG. In some embodiments, step S3 further includes: when the serial number of the last relevant balise group is unknown, the radio block center system determines that the last relevant balise group is a non-suspicious LRBG.

[0032] Specifically, step S4 includes: when the last relevant balise group is the suspicious LRBG, the radio block center system does not send a train acceptance message (that is, a message M41) to the on-board equipment; if the on-board equipment does not receive the train acceptance message within a first preset duration, the on-board equipment retains the current last relevant balise group and reports to the radio block center system that the position of the on-board equipment is known; and when the position of the on-board equipment is known, the radio block center system generates or updates the balise list information according to the current train position, the train running direction and the shunting route status, and sends the balise list information to the on-board equipment. Optionally, the first preset duration may be set according to the specific requirements.

[0033] Specifically, the radio block center system will update the balise list information to the on-board equipment in real time according to the shunting route status provided by the train control center and interlocking integrated system. Step S5 includes: the on-board equipment receives the balise list information within a second preset duration and saves the balise list information locally; when the train passes a balise that is not present in the balise list information, the on-board equipment generates and sends an emergency braking signal to the train; and the train stops after receiving the emergency braking signal. In addition, if the on-board equipment does not receive the balise list information within the second preset duration, the balise list information saved locally is cleared; after the balise list information saved locally is cleared and when the train passes any balise, the on-board equipment will generate and send the emergency braking signal to the train; and the train stops after receiving the emergency braking signal. Optionally, the second preset duration may be set according to the specific requirements.

[0034] Continuously referring to FIG. 2, the shunting overrun protection method further includes: step S6: when the last relevant balise group is the non-suspicious LRBG, the radio block center system does not generate the balise list information to enable the train to pass any balise.

[0035] Specifically, when the last relevant balise group is the non-suspicious LRBG, the radio block center system sends the train acceptance message to the on-board equipment; if the on-board equipment receives the train acceptance message within the first preset duration, the on-board equipment deletes the current last relevant balise group and reports to the radio block center system that the position of the on-board equipment is unknown; and when the position of the on-board equipment is unknown, the radio block center system does not generate or send the balise list information, so that the train can pass any balise.

[0036] In conclusion, this embodiment provides the shunting overrun protection system and method. The radio block center system can determine whether the last relevant balise group reported by the on-board equipment is a suspicious LRBG. When the last relevant balise group is the suspicious LRBG, balise list information is generated according to the current train position, the train running direction and the shunting route status and sent to the on-board equipment. When the train passes a balise that is not present in the balise list information, the on-board equipment controls the train to stop, thereby achieving overrun protection of the train. According to this embodiment, by means of the solution of adding the radio block center system to determine whether the last relevant balise group is a suspicious LRBG, a shunting protection function can be achieved when the arrangement of shunting protection balises is incomplete, and the radio block center system can be prevented from sending wrong balise list information because the position of the on-board equipment is not updated in time, thereby preventing the train from passing the balise that is not present in the balise list information and avoiding the overrun situation. Compared with the traditional shunting overrun protection method, this embodiment has the advantages that a shunting protection balise arranged in front of a shunting signal is changed from the active balise to the passive balise, and the laying difficulty and the laying cost can be effectively reduced without a connection between a dedicated tail cable and ground electronic equipment; and according to this embodiment, the automation degree and the safety coefficient of the train shunting operation can be increased, the workload of human participation in the train shunting operation can be reduced, and the labor cost can be saved.

[0037] Although the content of the present disclosure has been described in detail through the aforementioned preferred embodiments, it should be recognized that the above description should not be considered as limiting the present disclosure. Various modifications and replacements to the present disclosure will become apparent to those skilled in the art upon reading the foregoing content. Accordingly, the protection scope of the present disclosure shall be limited by the appended claims.

Claims

1. A shunting overrun protection system, comprising: on-board equipment, connected to a train and configured to send a train position report and control the train to act, wherein the train position report comprises a current train position, a train running direction and a serial number of a last relevant balise group; a train control center and interlocking integrated system, configured to send a shunting route status; and a radio block center system, connected to the on-board equipment and the train control center and interlocking integrated system, and configured to determine whether the last relevant balise group is a suspicious LRBG, generate balise list information according to the current train position, the train running direction and the shunting route status when the last relevant balise group is a suspicious LRBG and send the balise list information to the on-board equipment.

2. The shunting overrun protection system according to claim 1, wherein when the train passes a balise that is not present in the balise list information, the on-board equipment controls the train to stop.

3. The shunting overrun protection system according to claim 1, wherein when the last relevant balise group is a non-suspicious LRBG, the radio block center system does not generate the balise list information to enable the train to pass any balise.

4. The shunting overrun protection system according to claim 2 or 3, wherein the balise is a passive balise.

5. A shunting overrun protection method using the shunting overrun protection system according to any one of claims 1 to 4, comprising: sending a shunting route status to a radio block center system by train control center and interlocking integrated system; sending a train position report to the radio block center system by the on-board equipment; determining, by the radio block center system, whether a last relevant balise group is a suspicious LRBG according to a current train position, a train running direction and a serial number of the last relevant balise group in the train position report; generating, by the radio block center system, balise list information according to the current train position, the train running direction and the shunting route status when the last relevant balise group is the suspicious LRBG, and sending the balise list information to the on-board equipment; and controlling the train by the on-board equipment to stop when the train passes a balise that is not present in the balise list information.

6. The shunting overrun protection method according to claim 5, wherein the step of determining, by the radio block center system, whether the last relevant balise group is a suspicious LRBG comprises: when the serial number of the last relevant balise group is known, determining, by the radio block center system, whether the current train position is valid according to the current train position, the train running direction and switch information; if yes, determining that the last relevant balise group is a non-suspicious LRBG; and if not, determining that the last relevant balise group is the suspicious LRBG.

7. The shunting overrun protection method according to claim 5, wherein the step of determining, by the radio block center system, whether the last relevant balise group is a suspicious LRBG further comprises: when the serial number of the last relevant balise group is unknown, determining, by the radio block center system, that the last relevant balise group is a non-suspicious LRBG.

8. The shunting overrun protection method according to claim 5, wherein the step of generating and sending balise list information to the on-board equipment by the radio block center system comprises: when the last relevant balise group is the suspicious LRBG, not sending a train acceptance message to the on-board equipment by the radio block center system; if the on-board equipment does not receive the train acceptance message within a first preset duration, retaining the current last relevant balise group, and reporting to the radio block center system that the position of the on-board equipment is known; and when the position of the on-board equipment is known, generating, by the radio block center system, the balise list information according to the current train position, the train running direction and the shunting route status, and sending the balise list information to the on-board equipment.

9. The shunting overrun protection method according to claim 8, wherein the step of controlling the train by the on-board equipment to stop comprises: receiving the balise list information by the on-board equipment within a second preset duration, and saving the balise list information; when the train passes a balise that is not present in the balise list information, generating and sending an emergency braking signal to the train by the on-board equipment; and enabling the train to stop after receiving the emergency braking signal.

10. The shunting overrun protection method according to claim 9, further comprising: if the on-board equipment does not receive the balise list information within the second preset duration, clearing the saved balise list information; when the train passes any balise, generating and sending the emergency braking signal to the train by the on-board equipment; and enabling the train to stop after receiving the emergency braking signal.

11. The shunting overrun protection method according to claim 5, further comprising: when the last relevant balise group is a non-suspicious LRBG, not generating the balise list information by the radio block center system to enable the train to pass any balise.

12. The shunting overrun protection method according to claim 11, wherein when the last relevant balise group is the non-suspicious LRBG, the radio block center system sends a train acceptance message to the on-board equipment; if receiving the train acceptance message within a first preset duration, the on-board equipment deletes the current last relevant balise group and reports to the radio block center system that the position of the on-board equipment is unknown; and when the position of the on-board equipment is unknown, the radio block center system does not generate the balise list information to enable the train to pass any balise.

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