A Method, System and Medium for Identifying RBC Non-Communication Trains

Abstract

The present invention provides an RBC non-communication train identification method, system and medium. The RBC non-communication train identification method includes the steps of: S1, the axle counter host communicates with each axle counter sensor, and based on the sensor signals and fault states of the axle counter sensors, sends the axle counter sensor information of each axle counter sensor to the RBC host every cycle; S2, the RBC host identifies non-communication trains and communication trains entering the section based on the received axle counter sensor information of the departure station and the communication train positioning report. In view of the defects of the prior art, the present invention reports the axle counter sensor information to the RBC host through the axle counter host, can reliably identify non-communication trains and communication trains entering the section, and relies on the upgrade and transformation of the existing equipment without adding new trackside train detection equipment. The upgrade is simple and easy to implement, and has strong practicability and economic value.

Description

Technical Field

[0001] The present invention relates to the technical field of railway signals, and particularly relates to a method, system and medium for identifying non - communicating trains by an RBC (Radio Block Center). Background Art

[0002] For the station - to - station section (hereinafter referred to as the section for short) operating according to the moving block rule, the RBC generally calculates the occupied block section, that is, the moving block section, occupied by the train dynamically as the train travels based on the positioning reports of communicating trains, so as to ensure the safe operating interval between trains. However, since there may still be non - communicating trains that cannot send positioning reports to the RBC (such as trains with vehicle - to - ground communication failures or trains without on - vehicle equipment) entering the section, in this case, the RBC still needs to use track - side train detection equipment to detect non - communicating trains entering the section and calculate the block section for them, that is, non - communicating train identification, to ensure that there is a sufficient safety interval between the subsequent communicating trains and them.

[0003] Currently, the railway automatic block sections in China generally include the following track - side train detection equipment:

[0004] As shown in the appendix Figure 1 In the section between Station A and Station B, there is an axle - counting section. Axle - counting sensors JZ_A and JZ_B are respectively set at the start and end points of the axle - counting section (at the approaching signal machines of Station A and Station B). By counting the number of train wheel pairs entering and leaving the axle - counting section through JZ_A and JZ_B, the axle - counting host can judge whether the axle - counting section is occupied or clear, and report it to the RBC through the interlocking.

[0005] In addition, departure sections 1LQ_A and 1LQ_B with track circuits are respectively set outside the approaching signal machines of Station A and Station B (in the field of rail transit, outside and inside are terms. Their distinction is based on the direction of protection. The protected side is the inside, and the opposite is the outside). They can judge whether there is a train on this departure section through the occupied or clear state of the track circuit and report it to the RBC through the interlocking; except for the departure sections, there is no track circuit arranged at other positions in the section.

[0006] Through the above - mentioned track - side train detection equipment, the prior art identifies non - communicating trains and communicating trains according to the method of combining the identification of the occupied state of the axle - counting section and the identification of the occupied state of the departure section. Specifically:

[0007] 1. When the RBC receives that the state of the axle - counting section is occupied and the RBC does not receive the positioning report of the communicating train in the section, the RBC judges that there is a non - communicating train entering the section, and the occupied block section is the entire section; the RBC blocks the section and no longer allows subsequent communicating trains to enter the section until the state of the axle - counting section is clear;

[0008] 2. When the RBC receives that the departure section status of the departure station (depending on the running direction of the section, the start end of the running direction is the departure station) is occupied, and the RBC does not receive the positioning report of the non - communication train on this departure section, the RBC determines that a non - communication train has entered the section, and the occupied block section is the entire section; the RBC blocks this section and no longer allows subsequent communication trains to enter the section until the axle counter section status is cleared.

[0009] Among them, Method 1 and Method 2 are applied simultaneously and are redundant to each other.

[0010] However, this identification method may have potential safety hazards in specific situations, such as Figure 2 as shown:

[0011] a. If a communication train 1 has entered the axle counter section before the non - communication train enters the section, then before the communication train 1 exits the axle counter section, the axle counter section is always in the occupied state and there is a positioning report of the communication train 1 in the axle counter section. As a result, when the non - communication train enters the axle counter section, it cannot be identified. Therefore, the RBC cannot identify the non - communication train entering the section through the occupation of the axle counter section.

[0012] b. The track circuit of the departure section may have a shunting malfunction. In the shunting malfunction state of 1LQ_A, although the non - communication train occupies 1LQ_A, it cannot be identified, and the status of 1LQ_A is still reported as cleared. Therefore, the RBC cannot identify the non - communication train entering the section through the occupation of the departure section.

[0013] When the two situations of a and b are superimposed, that is, a communication train 1 has entered the axle counter section before the non - communication train enters the section, and there is a shunting malfunction in 1LQ_A, then the methods for identifying the occupation state of the axle counter section and the occupation state of the departure section both fail. The RBC cannot identify the non - communication train according to the existing method and cannot set a block section for it; furthermore, the subsequent communication train 2 can still follow the non - communication train into the section, and its movement authority may cross the rear of the non - communication train, posing a safety risk of the communication train 2 rear - ending the non - communication train. Summary of the Invention

[0014] The purpose of the present invention is to provide an RBC non - communication train identification method, system and medium. Aiming at the defects of the existing technology, without adding new trackside train detection equipment, the RBC non - communication train identification method is improved to eliminate the above - mentioned safety risks.

[0015] To achieve the above - mentioned purpose, the present invention is realized through the following technical solutions:

[0016] An RBC non-communication train identification method is implemented based on an RBC non-communication train identification system. The RBC non-communication train identification system includes an axle counter host and an RBC host that can communicate directly, and axle counter sensors located at both ends of the axle counter section and electrically connected to the axle counter host. The RBC non-communication train identification method includes the following steps:

[0017] S1. The axle counter host communicates with each axle counter sensor, and based on the sensor signals and fault status of each axle counter sensor, sends the axle counter sensor information of each axle counter sensor to the RBC host every cycle.

[0018] S2. The RBC host identifies non-communication trains and communication trains entering the section based on the received axle counter sensor information of the departure station and the communication train positioning report.

[0019] Among them, the axle counter sensor of the departure station is the axle counter sensor located at one end of the departure station according to the running direction of the section.

[0020] Preferably, the axle counter sensor information is one of the following three: a wheel pair crosses a certain axle counter sensor and enters the section, no wheel pair crosses a certain axle counter sensor and enters the section, and a certain axle counter sensor fails.

[0021] Preferably, step S1 includes:

[0022] S11. If the axle counter host receives a pulse signal indicating that a train wheel pair enters the axle counter section from outside the axle counter section sent by a certain axle counter sensor, it sends the axle counter sensor information that a wheel pair crosses this axle counter sensor and enters the section to the RBC host.

[0023] S12. If the axle counter host has not received a pulse signal indicating that a train wheel pair enters the axle counter section from outside the axle counter section sent by a certain axle counter sensor, it sends the axle counter sensor information that no wheel pair crosses this axle counter sensor and enters the section to the RBC host.

[0024] S13. When the axle counter host detects that a certain axle counter sensor is abnormal, it sends the axle counter sensor information that this axle counter sensor fails to the RBC host.

[0025] Preferably, in steps S11 and S12, the axle counter host checks whether it has received a pulse signal indicating that a train wheel pair enters the axle counter section from outside the axle counter section sent by a certain axle counter sensor within the first time before. The first time is greater than or equal to the time difference between the wheel pairs on two adjacent bogies of the train passing through the same axle counter sensor.

[0026] Preferably, step S2 further includes that the RBC host sets the status of the axle counter sensor at the departure station based on the received axle counter sensor information of the departure station and the communication train positioning report, and then identifies non-communication trains and communication trains entering the section based on the status of the axle counter sensor at the departure station, the axle counter sensor information of the departure station, and the communication train positioning report;

[0027] Wherein, the status of the axle counter sensor at the departure station is the status of the axle counter sensor at the departure station in the RBC host, which is one of the initial status, the status that a communication train is entering the section, and the status that a non-communication train occupies the section. After power-on, it is initialized to the initial status.

[0028] Preferably, step S2 includes,

[0029] S21. When the status of the axle counter sensor at the departure station is the initial status, if the RBC host receives axle counter sensor information that a wheel pair crosses and presses the axle counter sensor at the departure station to enter the section, the RBC host identifies whether the train entering the section is a non-communication train or a communication train based on whether it receives a communication train positioning report through the axle counter sensor at the departure station, and accordingly changes the status of the axle counter sensor at the departure station to the status that a communication train is entering the section or the status that a non-communication train occupies the section;

[0030] S22. When the status of the axle counter sensor at the departure station is the status that a communication train is entering the section, if the RBC host receives axle counter sensor information that no wheel pair crosses and presses the axle counter sensor at the departure station to enter the section, the status of the axle counter sensor at the departure station is changed to the initial status;

[0031] S23. When the status of the axle counter sensor at the departure station is the status that a non-communication train occupies the section, if the RBC host receives that the status of the axle counter section is cleared, the status of the axle counter sensor at the departure station is changed to the initial status, and at the same time, the section blockade is lifted, and subsequent communication trains can enter the section.

[0032] Preferably, step S2 further includes,

[0033] S24. When the status of the axle counter sensor at the departure station is the initial status or the status that a communication train is entering the section, if the RBC host receives axle counter sensor information about a fault of the axle counter sensor at the departure station, or the communication between the RBC host and the axle counter host times out, the RBC host determines that a non-communication train has entered the section, the blocked section it occupies is the entire section, the section is blocked, and subsequent communication trains are no longer allowed to enter the section. At the same time, the status of the axle counter sensor at the departure station is changed to the status that a non-communication train occupies the section.

[0034] Preferably, step S21 includes,

[0035] S211. The RBC host checks whether it has received a communication train positioning report via the axle counter sensor at the departure station:

[0036] If it has received, the RBC host changes the status of the axle counter sensor at the departure station to the status that a communication train is entering the section;

[0037] Otherwise, it proceeds to step S212;

[0038] S212. The RBC host delays and waits, and continuously checks during the waiting period whether it has received a communication train positioning report via the axle counter sensor at the departure station:

[0039] If it has received, the RBC host changes the status of the axle counter sensor at the departure station to the status that a communication train is entering the section;

[0040] If it still has not received, the RBC host determines that a non - communication train has entered the section, the blocked section it occupies is the entire section, blocks the section, no longer allows subsequent communication trains to enter the section, and at the same time changes the status of the axle counter sensor at the departure station to the status that a non - communication train occupies the section.

[0041] Preferably, in step S211,

[0042] The RBC host checks whether it has received a communication train positioning report via the axle counter sensor at the departure station within a previous second time, and the second time is greater than the first time.

[0043] Preferably, it further includes steps executed synchronously with steps S1 and S2:

[0044] S3. When the status of the axle counter section is occupied and there is no communication train positioning report in the section, the RBC host determines that a non - communication train has entered the section, and the blocked section it occupies is the entire section; the RBC host blocks the section and no longer allows subsequent communication trains to enter the section until the status of the axle counter section is cleared.

[0045] Preferably, the RBC non - communication train identification system further includes a first track circuit and a second track circuit arranged near both ends of the axle counter section. The section with the first track circuit is the first departure section, and the section with the second track circuit is the second departure section. The RBC host can obtain the occupancy status information of the first and second departure sections; the RBC non - communication train identification method further includes steps executed synchronously with steps S1, S2, and S3:

[0046] S4. When the RBC host obtains that the departure section status of the departure station is occupied, but there is no communication train positioning report on the departure section of the departure station, the RBC host determines that a non-communication train has entered the section, and the occupied block section is the entire section; the RBC host blocks this section and no longer allows subsequent communication trains to enter the section until the axle counter section status is cleared.

[0047] Among them, the departure section of the departure station is the departure section close to the departure station according to the running direction of the section.

[0048] An RBC non-communication train identification system for implementing any of the above RBC non-communication train identification methods, comprising:

[0049] An axle counter subsystem, comprising: a first axle counter sensor and a second axle counter sensor arranged near both ends of the section, and the section sandwiched between the two is the axle counter section; an axle counter host electrically connected to the first and second axle counter sensors, and the axle counter host receives the train wheel pair number counting information of the trains entering and leaving the axle counter section sent by the first and second axle counter sensors, and accordingly judges the occupancy status information of the axle counter section.

[0050] An RBC, including an RBC host, and the RBC host can communicate with the on-vehicle equipment of the communication train; and, a separate network communication channel is also provided between the RBC host and the axle counter host, and the axle counter host can directly report the axle counter sensor information of each connected axle counter sensor to the RBC host through the network communication channel, and the RBC host can comprehensively identify the non-communication train entering the axle counter section based on the received axle counter sensor information and the communication train positioning report.

[0051] Preferably, the network communication channel between the RBC host and the axle counter host is a wired network communication channel.

[0052] Preferably, both the axle counter host and the RBC host are connected to the ground safety data network of the signal system, and the axle counter sensor crossover information is sent to the RBC host through the ground safety data network.

[0053] Preferably, it further includes:

[0054] An interlocking device, communicating with the axle counter host and the RBC host;

[0055] The axle counter host reports the occupancy status information of the axle counter section to the interlocking device; the RBC host obtains the occupancy status information of the axle counter section from the interlocking device.

[0056] Preferably, it further includes:

[0057] The track circuit includes a first track circuit and a second track circuit disposed near both ends of the axle counter section. The section provided with the first track circuit is the first departure section, and the section provided with the second track circuit is the second departure section. The first and second track circuits are electrically connected to the interlocking, and the interlocking obtains the occupancy status information of the first and second departure sections through the first and second track circuits.

[0058] A computer-readable storage medium stores axle counter host software and RBC host software. When the axle counter host software and the RBC host software are executed by a processor, the steps of any one of the above-mentioned RBC non-communication train identification methods are implemented.

[0059] In summary, compared with the prior art, a RBC non-communication train identification method, system and medium provided by the present invention have the following beneficial effects:

[0060] 1. By reporting the axle counter sensor information from the axle counter host to the RBC host, non-communication trains and communication trains entering the section can be reliably identified, solving the technical problem of potential safety accidents caused by the identification methods in the prior art.

[0061] 2. Relying on the existing equipment for upgrading and transformation, no new trackside train detection equipment is added. The hardware modification only adds a network communication channel between the axle counter host and the RBC host, and the software modification only modifies the axle counter host software and the RBC host software. The upgrade is simple and easy to implement, with low cost and high reliability, and has strong practicability and economic value. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] Figure 1 It is a schematic diagram of trackside train detection equipment in an automatic block section of the prior art;

[0063] Figure 2 It is a schematic diagram of a rear-end collision accident occurring under specific conditions in the method of identifying non-communication trains in the prior art;

[0064] Figure 3 It is a flowchart of the RBC non-communication train identification method of the present invention;

[0065] Figure 4 It is a schematic diagram of trackside train detection equipment of the RBC non-communication train identification system of the present invention;

[0066] Figure 5 It is a schematic diagram of a non-communication train entering the axle counter section under specific conditions in the method of the present invention;

[0067] Figure 6 It is a schematic diagram of a communication train entering the axle counter section under specific conditions in the method of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0068] The following is a further detailed description of an RBC non-communication train identification method, system and medium proposed in the present invention in combination with the accompanying drawings and specific embodiments. According to the following description, the advantages and features of the present invention will be clearer. It should be noted that the accompanying drawings are in a very simplified form and use non-precise proportions. They are only used to conveniently and clearly assist in explaining the purpose of the implementation of the present invention, and are not used to limit the limiting conditions for the implementation of the present invention. Therefore, they have no technical substantive significance. Any structural modification, change in proportional relationship or adjustment of size, without affecting the efficacy and purpose that can be achieved by the present invention, should still fall within the scope of the technical content disclosed by the present invention.

[0069] It should be noted that, in the present invention, relational terms such as and are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only the elements explicitly listed, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0070] Combined with Figures 3 to 6 The present invention provides an RBC non-communication train identification method, system and medium, which can improve the RBC non-communication train identification method of the prior art without adding new trackside train detection equipment, reliably identify non-communication trains and communication trains entering the section, and eliminate the risk of potential accidents caused by the defects of the prior art.

[0071] The RBC non-communication train identification system provided by the present invention comprises:

[0072] Interlocking, same as prior art.

[0073] The axle counting subsystem includes: a first axle counting sensor and a second axle counting sensor arranged near the two ends of the section, and the section sandwiched by the two is the axle counting section. The axle counting host is electrically connected to the first and second axle counting sensors and the interlocking. The axle counting host receives the counting information of the number of train wheels entering and exiting the axle counting section sent by the first and second axle counting sensors, and judges the occupancy status information of the axle counting section based on this and reports it to the interlocking; the occupancy status information of the axle counting section includes two states: occupied and cleared. This embodiment only exemplarily lists the axle counting subsystem including the first and second axle counting sensors. Usually, one axle counting host is electrically connected to the axle counting sensors of multiple axle counting sections.

[0074] The track circuit, which is the same as the prior art, includes a first track circuit and a second track circuit disposed near both ends of the axle counter section. The section with the first track circuit is the first departure section, and the section with the second track circuit is the second departure section. The first and second track circuits are electrically connected to the interlocking, and the interlocking obtains the occupancy status information of the first and second departure sections through the first and second track circuits. The occupancy status information of the departure section includes two states: occupied and cleared.

[0075] The RBC includes an RBC host. The RBC host can communicate with the interlocking and the on-vehicle equipment of the communicating train respectively. The same as the prior art, it receives the axle counter section occupancy status information and the departure section occupancy status information from the interlocking, receives the positioning report of the communicating train from the on-vehicle equipment of the communicating train, and performs non-communicating train and communicating train identification based on the received information according to the method of combining axle counter section occupancy status identification and departure section occupancy status identification in the prior art.

[0076] Moreover, a separate network communication channel is additionally provided between the RBC host and the axle counter host. The axle counter host can directly report the axle counter sensor information of each connected axle counter sensor to the RBC host through this network communication channel. The RBC host can comprehensively identify non-communicating trains entering the axle counter section based on the received axle counter sensor information and the positioning report of the communicating train. Among them, the axle counter sensor information is one of the following: a wheel pair crosses a certain axle counter sensor and enters the section, no wheel pair crosses a certain axle counter sensor and enters the section, and a certain axle counter sensor fails. When a certain axle counter sensor detects a pulse signal indicating that a train wheel pair enters the axle counter section from outside the axle counter section (i.e., a pulse signal indicating an increase in the number of train wheel pairs in the axle counter section), the axle counter host sends to the RBC host that a wheel pair crosses a certain axle counter sensor and enters the section; otherwise, it sends that no wheel pair crosses a certain axle counter sensor and enters the section. When the axle counter host detects an abnormality of a certain axle counter sensor (such as a communication interruption between the axle counter host and a certain axle counter sensor, or a certain axle counter sensor detaching from the rail, etc.), the axle counter host sends to the RBC host that a certain axle counter sensor fails. The network communication channel is preferably a wired communication channel, which has better reliability and anti-interference performance. In some embodiments, both the axle counter host and the RBC host are connected to the ground safety data network of the signal system, and the axle counter sensor cross-pressure information is sent to the RBC host through the ground safety data network.

[0077] The RBC non-communication train identification system of the present invention is upgraded based on the existing equipment. The interlocking and track circuit are exactly the same as the existing technology; the RBC host and axle counter subsystem are basically the same as the existing technology in terms of hardware, and only a network communication channel capable of direct communication is added between the axle counter host and the RBC host; the software modification is only to modify the axle counter host software and the RBC host software, adding the function of the axle counter host sending the axle counter sensor cross-pressure information to the RBC host, and the function of the RBC host comprehensively identifying non-communication trains and communication trains entering the axle counter section based on the received axle counter sensor information and communication train positioning reports. There is no need to add new trackside train detection equipment, the upgrade is simple and easy to implement, with low cost and high reliability, and has strong practicability and economic value.

[0078] Further, as shown in the appendix Figure 3 The RBC non-communication train identification method provided by the present invention is implemented based on the above-mentioned RBC non-communication train identification system, and includes the steps:

[0079] S1. The axle counter host communicates with each connected axle counter sensor, and based on the sensor signals and fault states of each axle counter sensor, sends the axle counter sensor information of each axle counter sensor to the RBC host every cycle; wherein, the axle counter sensor information is one of the three: a wheel pair crosses a certain axle counter sensor into the area, no wheel pair crosses a certain axle counter sensor into the area, and a certain axle counter sensor fails. It includes the steps:

[0080] S11. If the axle counter host has received a pulse signal (i.e., a pulse signal indicating an increase in the number of train wheel pairs in the axle counter section) sent by a certain axle counter sensor from outside the axle counter section into the axle counter section within the previous first time, the axle counter host sends the axle counter sensor information that a wheel pair crosses this axle counter sensor into the area to the RBC host, for reporting to the RBC host that a train has entered the axle counter section through this axle counter sensor;

[0081] S12. If the axle counter host has not received a pulse signal (i.e., a pulse signal indicating an increase in the number of train wheel pairs in the axle counter section) sent by a certain axle counter sensor from outside the axle counter section into the axle counter section within the previous first time, it sends the axle counter sensor information that no wheel pair crosses this axle counter sensor into the area to the RBC host, for notifying the RBC host that no train has entered the axle counter section through this axle counter sensor;

[0082] S13. When the axle counter host detects that a certain axle counter sensor is abnormal (such as a communication interruption between the axle counter host and a certain axle counter sensor, or a certain axle counter sensor being detached from the rail, etc.), it sends the axle counter sensor information of this axle counter sensor failure to the RBC host, for notifying the RBC host that this axle counter sensor fails;

[0083] Among them, the first time should be greater than or equal to the time difference between the wheel sets on two adjacent bogies of the train passing through the same axle counter sensor, so as to prevent the axle counter host from missing the pulse signal of the axle counter sensor. The value of the first time is configured according to specific conditions such as vehicle speed and vehicle length. In practice, the value is 15 seconds.

[0084] S2. Based on the status of the axle counter sensor at the departure station, as well as the received axle counter sensor information of the departure station and the communication train positioning report, the RBC host identifies non-communication trains entering the section. Among them, the axle counter sensor at the departure station refers to the axle counter sensor located at one end of the departure station according to the running direction of the section, which may be the first axle counter sensor or the second axle counter sensor. The status of the axle counter sensor at the departure station refers to the status of the axle counter sensor at the departure station in the RBC host, which is one of the initial status, the status of the communication train entering the section, and the status of the non-communication train occupying the section. It is set by the RBC host and is initialized to the initial status after startup. The axle counter sensor information of the departure station refers to the axle counter sensor information of the axle counter sensor at the departure station. The communication train positioning report refers to the train positioning information reported by the on-vehicle equipment of the communication train to the RBC host. It includes the following steps:

[0085] S21. When the status of the axle counter sensor at the departure station is the initial status, if the RBC host receives the axle counter sensor information that a wheel set crosses the axle counter sensor at the departure station and enters the section, it identifies non-communication trains and communication trains entering the section based on the communication train positioning report. It includes the following steps:

[0086] S211. Check whether the communication train positioning report has passed through the axle counter sensor at the departure station within the second time:

[0087] If it has been received, the RBC host changes the status of the axle counter sensor at the departure station to the status of the communication train entering the section.

[0088] Otherwise, it proceeds to step S212.

[0089] Among them, the second time is configured according to specific conditions, and the second time is greater than the first time to prevent the RBC host from missing the communication train positioning report in the case where the communication train positioning report arrives before the axle counter sensor information of the departure station. In practice, the value of the second time is the first time plus 5 seconds, that is, 20 seconds.

[0090] S212. The RBC host waits for the third time, and continuously checks whether the communication train positioning report has passed through the axle counter sensor at the departure station during the waiting period:

[0091] If it is received, the RBC host changes the status of the axle counter sensor at the departure station to the status of the communication train entering the section.

[0092] If no response is received yet, the RBC host determines that a non - communication train has entered the section. The occupied block section is the entire section, and the section is blocked, and subsequent communication trains are no longer allowed to enter the section. At the same time, the status of the axle counter sensor at the departure station is changed to the status of a non - communication train occupying the section.

[0093] Among them, the third time is used to prevent the RBC host from missing the positioning report of the communication train in case the positioning report of the communication train arrives late. The third time is configured according to specific circumstances. In practice, the value of the third time is 20 seconds.

[0094] S22. When the status of the axle counter sensor at the departure station is that a communication train is entering the section, if the RBC host receives the axle counter sensor information that no wheel pair straddles the axle counter sensor at the departure station to enter the section, the status of the axle counter sensor at the departure station is changed to the initial state.

[0095] S23. When the status of the axle counter sensor at the departure station is the status of a non - communication train occupying the section, if the RBC host receives that the status of the axle counter section is cleared, the status of the axle counter sensor at the departure station is changed to the initial state, and at the same time, the section blockade is lifted, and subsequent communication trains can enter the section.

[0096] Among them, the status of the axle counter section being cleared can be obtained by the interlocking according to the method of the existing technology, or can be obtained from the axle counter sensor information of the receiving station sent by the axle counter host.

[0097] S24. When the status of the axle counter sensor at the departure station is the initial state or the state that a communication train is entering the section, if the RBC host receives the axle counter sensor information of the axle counter sensor at the departure station being faulty, or the communication between the RBC host and the axle counter host times out, the RBC host determines that a non - communication train has entered the section. The occupied block section is the entire section, and the section is blocked, and subsequent communication trains are no longer allowed to enter the section. At the same time, the status of the axle counter sensor at the departure station is changed to the status of a non - communication train occupying the section.

[0098] Step S24 processes the fault status according to the situation of a non - communication train entering the section in accordance with the requirements of railway signal equipment failure - oriented safety to ensure safety.

[0099] To have better reliability and redundancy, the above - mentioned method combines the existing technology of the occupied status method of the axle counter section and the occupied status method of the departure section to jointly identify non - communication trains and communication trains, that is, it also includes the following steps executed synchronously with steps S1 and S2:

[0100] S3. The RBC host identifies non - communication trains and communication trains entering the section through the existing technology of the occupied status method of the axle counter section. Specifically:

[0101] When the axle counter section is in the occupied state and there is no communication train position report in the section, the RBC host judges that a non-communication train has entered the section, and the blocked section it occupies is the entire section; the RBC host blocks the section and no longer allows subsequent communication trains to enter the section until the axle counter section is in the cleared state.

[0102] S4. The RBC host uses the existing method for the occupied state of the departure section to identify non-communication trains and communication trains entering the section; specifically:

[0103] When the departure section of the originating station is in the occupied state and there is no communication train position report on this departure section, the RBC host judges that a non-communication train has entered the section, and the blocked section it occupies is the entire section; the RBC host blocks the section and no longer allows subsequent communication trains to enter the section until the axle counter section is in the cleared state.

[0104] Next, some specific embodiments are provided for illustration:

[0105] As shown in the appendix Figures 4 to 6 There is an axle counter section with the starting and ending points being the starting signal lights of Station A and Station B within the section between Station A and Station B. Axle counter sensors JZ_A and JZ_B electrically connected to an axle counter host (not shown) are respectively set at both ends of the axle counter section. The axle counter host judges whether the axle counter section is in the occupied or cleared state and reports it to the RBC host (not shown) through the interlocking (not shown). Departure sections 1LQ_A and 1LQ_B with track circuits are respectively set outside the starting signal lights of Station A and Station B, and their occupied states of each departure section are reported to the RBC host through the interlocking.

[0106] Moreover, a wired network communication channel is added between the axle counter host and the RBC host; the software of the existing axle counter host is modified to enable it to send axle counter sensor information to the RBC host through the wired network communication channel; as shown in the appendix Figure 4 shown, the specific sending method is as follows:

[0107] i. Before the train enters the axle counter section through JZ_A (i.e., JZ_A is the axle counter sensor of the originating station), the axle counter host sends "no wheel pair straddles JZ_A into the section" to the RBC host;

[0108] ii. If the axle counter host has received the pulse signal of the train wheel pair entering the axle counter section sent by JZ_A within the previous X seconds (X is relative to the above-mentioned first time and is greater than or equal to the time from the first wheel pair of the train passing JZ_A to the last wheel pair of the train passing JZ_A), the axle counter host sends "there is a wheel pair straddling JZ_A into the section" to the RBC;

[0109] iii. After the last wheel pair of the train passes JZ_A, the axle counter host continues to send "no wheel pair straddles JZ_A into the section" to the RBC host;

[0110] iv. At any time, if the axle counter host detects an abnormality in JZ_A (such as the cable between the host and JZ_A is broken, or JZ_A is detected to be off the rails), it will send a "JZ_A fault" to the RBC host;

[0111] Among them, this embodiment only lists that the axle counting host sends the axle counting sensor information of the departure station, and the axle counting host also sends the axle counting sensor information of other axle counting sensors connected to it to the RBC host based on the above rules in each cycle.

[0112] Furthermore, the RBC host software of the prior art is modified so that in a specific situation: before the non-communication train enters the section, a communication train 1 has entered the axle counting section, and 1LQ_A has a bad branching fault, the RBC host can integrate the axle counting sensor information of the departure station and the communication train positioning report to effectively identify the non-communication train and the communication train, thus solving the technical problem that the prior art cannot identify the non-communication train and may cause a rear-end collision. Figure 5 As shown, specifically:

[0113] 1. When a non-communication train passes through JZ_A from station A and enters the axle counting section (i.e. JZ_A is the axle counting sensor of the departure station), the state of the axle counting section is always occupied because of the presence of communication train 1 in the axle counting section, and the state of 1LQ_A is always cleared due to poor branching, but the axle counting host will report to the RBC host that "a wheelset crosses JZ_A to enter the zone".

[0114] 2. After the RBC host receives the message "JZ_A enters the zone with wheelset cross pressure", since the axle counter sensor of JZ_A is in the initial state at this time, the RBC host checks whether it has received a communication train positioning report through the axle counter sensor of the departure station within the previous Y seconds (Y is relative to the second time mentioned above, Y>X).

[0115] 3. Since non-communication trains will not send communication train positioning reports, the RBC host waits for Z seconds (Z is relative to the third time mentioned above) before determining that a non-communication train has entered the section. The block section occupied by the train is the entire section, and the section is blocked. No subsequent communication trains are allowed to enter the section. At the same time, the axle counter sensor status of JZ_A is changed to "section occupied by non-communication train".

[0116] 4. After the section is blocked, the driving permit of the subsequent communication train 2 cannot enter the section, so the safety risk of the communication train 2 rear-ending a non-communication train can be eliminated.

[0117] 5. After the non-communication train leaves the section (i.e. enters station B), the axle counting section status is idle, the RBC host releases the section blockade, and the subsequent communication train 2 can enter the section.

[0118] 6. If JZ_A fails, the axle counter host sends "JZ_A failure" to the RBC host; or, if the communication between the RBC host and the axle counter host is interrupted, the RBC host will continuously fail to receive any axle counter sensor information of JZ_A. In both of the above cases, to ensure train operation safety, the RBC host processes the situation as if a non - communicating train enters the section, sets the block section occupied by the non - communicating train as the entire section, blocks the section, and no longer allows subsequent communicating trains to enter the section. At the same time, the status of the axle counter sensor of JZ_A is changed to "occupied by non - communicating train".

[0119] Furthermore, in the above - mentioned situation, when the communicating train 2 enters the section following the communicating train 1 instead of a non - communicating train, this method will not affect the moving - block tracking operation of the communicating train 2 and the subsequent communicating train 3 behind it. As shown in the appendix Figure 6 as follows:

[0120] 1. When the communicating train 2 enters the section, the axle counter host sends "axle pairs cross - press JZ_A to enter the section" to the RBC host. At the same time, the RBC host can receive the positioning report of the communicating train 2 passing through JZ_A. The RBC host changes the status of the axle counter sensor of JZ_A to "communicating train is entering the section", and at the same time, it does not affect the movement authority of the subsequent communicating train 3.

[0121] 2. After the last axle pair of the communicating train 2 passes through JZ_A, the axle counter host sends "no axle pairs cross - press JZ_A to enter the section" to the RBC host. The RBC host changes the status of the axle counter sensor of JZ_A to the initial state, and the recognition process ends.

[0122] In addition, the present invention also provides a computer - readable storage medium, on which the axle counter host software and the RBC host software are stored. When the axle counter host software and the RBC host software are executed by a processor, the steps of the RBC non - communicating train recognition method described in each of the above embodiments are implemented.

[0123] In summary, the RBC non - communicating train recognition method, system and medium provided by the present invention can reliably identify non - communicating trains and communicating trains entering the section by the axle counter host reporting axle counter sensor information to the RBC host, and solve the technical problem of potential safety accidents caused by the existing recognition methods. It relies on the existing equipment for upgrading and transformation, without adding new track - side train detection equipment. The hardware modification only adds a network communication channel between the axle counter host and the RBC host, and the software modification only modifies the axle counter host software and the RBC host software. The upgrade is simple and easy to implement, with low cost and high reliability, and has strong practicality and economic value.

[0124] Although the content of the present invention has been described in detail through the above preferred embodiments, it should be recognized that the above description should not be considered as a limitation of the present invention. After those skilled in the art have read the above content, various modifications and alternatives to the present invention will be obvious. Therefore, the protection scope of the present invention should be defined by the appended claims.

Claims

1. An RBC non-communication train identification method, characterized in that, it is implemented based on an RBC non-communication train identification system, and the RBC non-communication train identification system includes an axle counter host and an RBC host that can directly communicate, and axle counter sensors located at both ends of the axle counter section and electrically connected to the axle counter host; the RBC non-communication train identification method includes the steps: S1. The axle counter host communicates with each axle counter sensor, and based on the sensor signals and fault states of each axle counter sensor, sends the axle counter sensor information of each axle counter sensor to the RBC host every cycle; S2. The RBC host identifies non-communication trains and communication trains entering the section based on the received axle counter sensor information of the departure station and the communication train positioning report; wherein, the axle counter sensor of the departure station is the axle counter sensor located at one end of the departure station according to the section operation direction; The RBC host sets the state of the axle counter sensor of the departure station based on the received axle counter sensor information of the departure station and the communication train positioning report, and then identifies non-communication trains and communication trains entering the section based on the state of the axle counter sensor of the departure station, the axle counter sensor information of the departure station and the communication train positioning report; wherein, the state of the axle counter sensor of the departure station is the state of the axle counter sensor of the departure station in the RBC host, which is one of the initial state, the state that a communication train is entering the section, and the state that a non-communication train occupies the section, and it is initialized to the initial state after power-on; S21. When the state of the axle counter sensor of the departure station is the initial state, if the RBC host receives the axle counter sensor information that a wheel pair straddles the axle counter sensor of the departure station and enters the section, the RBC host identifies whether the train entering the section is a non-communication train or a communication train based on whether it receives a communication train positioning report through the axle counter sensor of the departure station, and accordingly changes the state of the axle counter sensor of the departure station to the state that a communication train is entering the section or the state that a non-communication train occupies the section; S22. When the state of the axle counter sensor of the departure station is the state that a communication train is entering the section, if the RBC host receives the axle counter sensor information that no wheel pair straddles the axle counter sensor of the departure station and enters the section, the state of the axle counter sensor of the departure station is changed to the initial state; S23. When the state of the axle counter sensor of the departure station is the state that a non-communication train occupies the section, if the RBC host receives that the state of the axle counter section is clear, the state of the axle counter sensor of the departure station is changed to the initial state, and at the same time, the section blockade is lifted, and subsequent communication trains can enter the section.

2. The RBC non-communication train identification method according to claim 1, characterized in that, the axle counter sensor information is one of the following three: a wheel pair straddles a certain axle counter sensor and enters the section, no wheel pair straddles a certain axle counter sensor and enters the section, and a certain axle counter sensor fails.

3. The RBC non-communication train identification method according to claim 2, characterized in that, step S1 includes: S11. If the axle counter host receives a pulse signal sent by a certain axle counter sensor indicating that a train wheel pair has entered the axle counter section from outside the axle counter section, it sends the axle counter sensor information indicating that a wheel pair has crossed and entered the area of this axle counter sensor to the RBC host. S12. If the axle counter host has not received a pulse signal sent by a certain axle counter sensor indicating that a train wheel pair has entered the axle counter section from outside the axle counter section, it sends the axle counter sensor information indicating that no wheel pair has crossed and entered the area of this axle counter sensor to the RBC host. S13. When the axle counter host detects an abnormality in a certain axle counter sensor, it sends the axle counter sensor information indicating the failure of this axle counter sensor to the RBC host.

4. The RBC non - communication train identification method according to claim 3, characterized in that, In steps S11 and S12, the axle counter host checks whether it has received a pulse signal sent by a certain axle counter sensor indicating that a train wheel pair has entered the axle counter section from outside the axle counter section within a first period of time before, and the first period of time is greater than or equal to the time difference between the wheel pairs on two adjacent bogies of the train passing the same axle counter sensor.

5. The RBC non - communication train identification method according to claim 1, characterized in that, Step S2 further includes, S24. When the status of the axle counter sensor at the departure station is in the initial state or the communication train is entering the section state, if the RBC host receives the axle counter sensor information indicating the failure of the axle counter sensor at the departure station, or the communication between the RBC host and the axle counter host times out, the RBC host determines that a non - communication train has entered the section, the blocked section it occupies is the entire section, blocks this section, and no longer allows subsequent communication trains to enter the section. At the same time, it changes the status of the axle counter sensor at the departure station to the state of being occupied by a non - communication train.

6. The RBC non - communication train identification method according to claim 1, characterized in that, Step S21 includes, S211. The RBC host checks whether it has received a communication train positioning report passing through the axle counter sensor at the departure station: If it has received, the RBC host changes the status of the axle counter sensor at the departure station to the state that a communication train is entering the section; Otherwise, it proceeds to step S212; S212. The RBC host delays and waits, and continuously checks whether it receives a communication train positioning report passing through the axle counter sensor at the departure station during the waiting period: If it receives, the RBC host changes the status of the axle counter sensor at the departure station to the state that a communication train is entering the section; If it still has not received, the RBC host determines that a non - communication train has entered the section, the blocked section it occupies is the entire section, blocks this section, and no longer allows subsequent communication trains to enter the section. At the same time, it changes the status of the axle counter sensor at the departure station to the state of being occupied by a non - communication train.

7. The RBC non - communication train identification method according to claim 6, characterized in that, Step In S211, the RBC host checks whether it has received a communication train positioning report passing through the axle counter sensor at the departure station within a second period of time before, and the second period of time is greater than the first period of time.

8. The RBC non - communication train identification method according to any one of claims 1 to 7, characterized in that, It also includes steps executed synchronously with steps S1 and S2: S3. When the axle counter section status is occupied and there is no communication train positioning report within the section, the RBC host determines that a non-communication train has entered the section, and the blocked section it occupies is the entire section; the RBC host blocks this section and no longer allows subsequent communication trains to enter the section until the axle counter section status becomes clear.

9. The RBC non-communication train identification method according to claim 8, characterized in that, the RBC non-communication train identification system further includes a first track circuit and a second track circuit disposed near both ends of the axle counter section. The section provided with the first track circuit is the first departure section, and the section provided with the second track circuit is the second departure section. The RBC host can obtain the occupancy status information of the first and second departure sections; the RBC non-communication train identification method also includes steps executed synchronously with steps S1, S2, and S3: S4. When the RBC host obtains that the departure section status of the departure station is occupied and there is no communication train positioning report on the departure section of the departure station, the RBC host determines that a non-communication train has entered the section, and the blocked section it occupies is the entire section; the RBC host blocks this section and no longer allows subsequent communication trains to enter the section until the axle counter section status becomes clear; wherein, the departure section of the departure station is the departure section close to the departure station according to the running direction of the section.

10. An RBC non-communication train identification system, characterized in that, for implementing the RBC non-communication train identification method according to any one of claims 1 to 9, and it includes: An axle counter subsystem, including: a first axle counter sensor and a second axle counter sensor disposed near both ends of the section. The section sandwiched by the two is the axle counter section; an axle counter host electrically connected to the first and second axle counter sensors. The axle counter host receives the train wheel pair number counting information of the trains entering and leaving the axle counter section sent by the first and second axle counter sensors, and thereby determines the occupancy status information of the axle counter section; an RBC, including an RBC host, and the RBC host can communicate with the on-vehicle equipment of the communication train; and, there is also a separate network communication channel between the RBC host and the axle counter host. The axle counter host can directly report the axle counter sensor information of each connected axle counter sensor to the RBC host through the network communication channel, and the RBC host can comprehensively identify non-communication trains entering the axle counter section based on the received axle counter sensor information and communication train positioning reports.

11. The RBC non-communication train identification system according to claim 10, characterized in that, the network communication channel between the RBC host and the axle counter host is a wired network communication channel.

12. The RBC non-communication train identification system according to claim 11, characterized in that, both the axle counter host and the RBC host are connected to the signal system ground safety data network, and send axle counter sensor cross-pressure information to the RBC host through the ground safety data network.

13. The RBC non-communication train identification system according to claim 10, characterized in that, it further includes: Interlocking, communicating with the axle counter host and the RBC host; The axle counter host reports the occupancy status information of the axle counter section to the interlocking; the RBC host obtains the occupancy status information of the axle counter section from the interlocking.

14. The RBC non-communication train identification system according to claim 12, characterized in that, it further comprises: Track circuits, including a first track circuit and a second track circuit arranged near both ends of the axle counter section. The section provided with the first track circuit is the first departure section, and the section provided with the second track circuit is the second departure section. The first and second track circuits are electrically connected to the interlocking, and the interlocking obtains the occupancy status information of the first and second departure sections through the first and second track circuits.

15. A computer-readable storage medium, characterized in that, the computer-readable storage medium stores axle counter host software and RBC host software, and when the axle counter host software and the RBC host software are executed by a processor, the steps of the RBC non-communication train identification method according to any one of claims 1 to 9 are implemented.

Images