A method for judging the legality of the formation combination of a coupled train

Abstract

The present invention discloses a method for judging the legality of the formation combination of coupled trains, belonging to the technical field of rail transit signal systems. The method realizes the identification and verification of the train length by setting a confidence interval; supports the formation combination convention and identification of different formations and different train types through system definition; and performs a dual-redundancy formation combination legality determination by obtaining the formation combination information through the information interaction between CCs in the coupled train and the information interaction between the CC and the trackside ZC. The present invention can obtain the true formation combination of the coupled train and the train type situation, so as to realize the true coupling function between different train types and different train formations.

Description

Technical Field

[0001] The present invention belongs to the technical field of rail transit, and particularly relates to the technology of coupled train formation. Background Art

[0002] The existing technical solution realizes the legality determination of the coupled formation combination through the vehicle coupling circuit, and requires that the vehicle can give the confirmed coupled train formation information to the signal system through the vehicle circuit.

[0003] The vehicle provides "coupled" and "uncoupled" signals, and the vehicle sends the "coupled" and "uncoupled" status signals at its own end and the "coupled" and "uncoupled" status signals at the opposite end to the on-vehicle signal systems at its own end and the opposite end. If a specific project only supports the coupling of trains with two formation units, then when there is a coupling combination of trains with more than two formation units (such as 3 formations + 3 formations + 3 formations), or when the vehicle detects the coupling of a formation unit train that does not support automatic coupling (such as 3 formations + 6 formations), the vehicle circuit ensures to give a coupling error status. After the signal system detects the coupling error status fed back by the vehicle, it determines that the coupled train formation combination is illegal.

[0004] In the existing technical solution, the legality determination of the coupled formation combination depends on the vehicle circuit and the coupling error status fed back by the vehicle. When there are three or more formation unit trains coupled, the vehicle circuit will be very complex, and the true coupled train formation combination and train type situation cannot be obtained through the vehicle circuit and interface information. For example, for a formation combination such as 3 formations of A1-type vehicles + 3 formations of A2-type vehicles + 3 formations of A1-type vehicles + 3 formations of A2-type vehicles, when the signal system cannot obtain the true coupled train formation combination and the corresponding train type situation, it cannot call the train control and protection data corresponding to the coupled formation combination, and cannot realize the true coupling function between different train types and different train formations, and cannot well solve the user's needs. Summary of the Invention

[0005] Aiming at the defects existing in the legality determination of the coupled train formation combination in the existing technical solution, the technical problem to be solved by the present invention is to provide a method for determining the legality of the coupled train formation combination, which can obtain the true coupled train formation combination and train type situation, so as to realize the true coupling function between different train types and different train formations.

[0006] To solve the above technical problem, the present invention adopts the following technical solution: A method for determining the legality of the coupled train formation combination, where vehicle A is coupled with vehicle B and vehicle A is in front of vehicle B, and the legality determination method includes the following steps:

[0007] The control end of vehicle A communicates and establishes a link with any one end CC of vehicle B;

[0008] If the communication link establishment is successful, the train formation information and positioning information are exchanged between the CCs of vehicle A and vehicle B. If there is positioning information, the CCs of vehicle A and vehicle B calculate the minimum and maximum lengths of the coupled train based on the obtained positioning information and their respective vehicle lengths. When both the minimum and maximum lengths of the coupled train are within the vehicle length confidence interval of the train formation combination to be determined for coupling, the CCs of vehicle A and vehicle B automatically replace the corresponding coupled train formation combination parameters respectively. The coupled train formation combination parameters include the formation type and train type, and mutual verification of the legality of the coupled train formation combination of the whole vehicle after coupling is carried out. If the verification passes, it is determined that the coupled train formation combination is legal; if the verification fails, it is determined that the coupled train formation combination is illegal. If the communication link is not established or the communication link is established but no positioning information is obtained, it is determined that the coupled train formation combination is to be confirmed;

[0009] After the CCs of vehicle A and vehicle B establish a link with ZC / ATS, they send the coupling status and formation-related information of the train to ZC / ATS in real time;

[0010] After ZC receives the coupling train formation combination legality confirmation information sent by CC, if the formation combination legality is in the to-be-confirmed state, ZC feeds back the confirmed coupling train formation combination information to CC according to the train tracking information;

[0011] CC performs legality verification on the confirmed coupling train formation combination information obtained from ZC based on the confirmed coupling train formation combination information obtained from ZC, combined with its own formation information, vehicle length information, and positioning information. If the verification passes, it is determined that the coupling train formation combination is legal, and CC automatically loads the train parameters matching the confirmed coupling train formation combination and calculates the train control curve according to the coupled train formation combination train parameters. If the verification fails, it is determined that the coupling train formation combination is illegal.

[0012] Preferably, if a key is inserted at the CC1 end of vehicle A;

[0013] If the CC1 of vehicle A determines that the current is a non-coupling end and the cab is in the activated state, then the CC1 of vehicle A is the train control end. If the CC2 of vehicle A determines that the current is a coupling end and the cab is in the non-activated state, then the CC2 of vehicle A is the standby end. If the CC1 of vehicle B determines that the current is a coupling end and the cab is in the non-activated state, then the CC1 of vehicle B is the following end. If the CC2 of vehicle B determines that the current is a non-coupling end and the cab is in the non-activated state, then the CC2 of vehicle B is the standby end.

[0014] Preferably, the train formation information and positioning information exchanged between the CCs of vehicle A and vehicle B include:

[0015] 1) The device ID of the CC;

[0016] 2) The train positioning information;

[0017] 3) Train formation information;

[0018] 4) Train type information;

[0019] 5) Train length;

[0020] 6) Information for confirming the legality of the coupled train formation combination, including legal coupled formation combination, illegal coupled formation combination, and coupled formation combination to be confirmed.

[0021] Preferably, before completing the confirmation of the legality of the coupled train formation combination, the CC of car A and the CC of car B manage the communication link with ZC / ATS according to their own positioning status. The CC of car A and the CC of car B independently perform data synchronization and sharing inside, and independently perform train positioning.

[0022] Preferably, the coupling status and formation-related information sent by the CC to ZC / ATS include:

[0023] 1) Information for confirming the legality of the coupled train formation combination, including legal coupled formation combination, illegal coupled formation combination, and coupled formation combination to be confirmed;

[0024] 2) Coupling status;

[0025] 3) Number of coupled trains;

[0026] 4) Identification number PVID of each formation unit train in the coupled train;

[0027] 5) Train length of each formation unit train in the coupled train;

[0028] 6) Formation information of each formation unit train in the coupled train;

[0029] 7) Train type information of each formation unit train in the coupled train;

[0030] 8) Train position information of each formation unit train in the coupled train.

[0031] Preferably, the CC judges the coupled train formation combination situation and feeds it back to ZC in real time. After ZC receives that the coupled formation combination status sent by the coupled train formation combination is a legal status, ZC records the coupled train formation combination information. ZC only sends the MAL information to the main control CC after coupling. When other CCs in the coupled formation combination access, ZC sends a special control message with turnout information to maintain train positioning and following operation.

[0032] Preferably, when the CC determines that the coupled train formation combination is illegal, the CC immediately applies emergency braking to control the train to stop, and gives an alarm prompt through ATS and TOD.

[0033] The technical solution adopted by the present invention realizes the identification and verification of the train conductor by setting a confidence interval; supports the formation combination agreement and identification of different formations and different train types through system definition; and performs a dual-redundancy formation combination legality determination on the formation combination information of the coupled trains by means of information interaction between the CCs within the coupled trains and information interaction between the CC and the trackside ZC.

[0034] Therefore, the present invention has the following beneficial effects:

[0035] 1. Since the coupled trains can automatically replace the corresponding formation combination parameters of the coupled trains, and the formation combination parameters of the coupled trains include the formation type and the train type, it is possible not only to identify the formation information of the coupled trains, but also to judge the train type of the coupled trains, truly realizing the attribute identification of the coupled trains.

[0036] 2. By defining the allowed formation combination types within the signal system (the formation combination types will clearly support the formation information and type information of the coupled trains), the identification of the coupled combinations of multiple different train formations and multiple different train types can be realized.

[0037] 3. For the formation types and train types of the coupled trains that can be supported, the signal system has been clearly defined. The signal system ensures that only the coupled trains with legal formation combinations within the defined range of the system can be put into operation. For the coupled trains that the signal system cannot identify or the formation combination determination is illegal, the signal system will prohibit the train from running to ensure the operation safety of other trains on the line;

[0038] 4. Through the dual-redundancy formation combination information acquisition method of information interaction between the on-vehicle CCs of each formation unit train within the coupled trains and information interaction between the on-vehicle CC and the trackside ZC, it is possible not only to support the legality judgment of the formation combination after the communication vehicles are coupled, but also to support the legality judgment of the formation combination after the communication vehicle is coupled with a non-communication vehicle and the formation combination after the non-communication vehicles are coupled.

[0039] The specific technical solution adopted by the present invention and the beneficial effects brought by it will be detailedly disclosed in the following specific embodiments in combination with the drawings. Brief Description of the Drawings

[0040] The present invention will be further described below in combination with the drawings and specific embodiments:

[0041] Figure 1 is a schematic diagram of the on-vehicle architecture of the coupled trains (taking two 3-formation unit trains as an example);

[0042] Figure 2 is a schematic diagram of the composition of each formation unit train within the coupled formation combination train in the embodiment of the present invention. Detailed implementation manners

[0043] The technical solutions of the embodiments of the present invention will be explained and described below with reference to the accompanying drawings of the embodiments of the present invention. However, the following embodiments are only the preferred embodiments of the present invention, not all of them. Based on the embodiments in the implementation manners, other embodiments obtained by those skilled in the art without creative efforts all fall within the protection scope of the present invention.

[0044] In view of the defects existing in the legality judgment of the coupling train formation combination in the prior art solutions, an embodiment of the present invention proposes a method for judging the legality of the coupling train formation combination.

[0045] Precondition 1: The on-vehicle architecture schematic diagram of the coupling train (taking two 3-formation unit trains as an example) is as Figure 1 shown:

[0046] Precondition 2: For the coupling train formation types and train types that can be supported, the signaling system has clearly defined them. For the undefined coupling train formation combination types, the signaling system automatically detects and provides safety protection to prevent trains of undefined coupling formation combination types from being put into operation.

[0047] It is assumed that the coupling train formation combination types that the signaling system has defined as supportable are: 3a + 3a, 3b + 3b, 3a + 3b, where both 3a and 3b are 3-formation trains, but the corresponding train parameters are different, such as traction and braking performance parameters, car length parameters, etc. When the signaling system identifies the coupling train formation combination type of 3a + 6, it determines that this formation combination type is undefined and automatically activates the protection.

[0048] The composition of the defined formation combination types allowed by the signaling system is as follows:

[0049] 1. The ID of the formation combination type allowed by the system;

[0050] 2. The formation information of each formation unit train included in this formation combination type (such as 3-formation, 6-formation);

[0051] 3. The train type information of each formation unit train included in this formation combination type (such as Type A1 train, Type A2 train);

[0052] 4. The car length information of each formation unit train included in this formation combination type.

[0053] Combined with Figure 1 and Figure 2 , the whole process of a method for judging the legality of the coupling train formation combination is as follows:

[0054] Step 1: Assume that the driver inserts the key at the CC1 end of Car A.

[0055] Step 2: If the CC1 of Train A determines that it is the non - coupled end and the cab is in the active state (activated by the driver's key), then the CC1 of Train A is the controlling end. If the CC2 of Train A determines that it is the coupled end and the cab is in the non - active state (driver's key not activated), then the CC2 of Train A is the standby end. If the CC1 of Train B determines that it is the coupled end and the cab is in the non - active state (driver's key not activated), then the CC1 of Train B is the following end. If the CC2 of Train B determines that it is the non - coupled end and the cab is in the non - active state (driver's key not activated), then the CC2 of Train B is the standby end.

[0056] Step 3: The controlling - end CC1 of Train A communicates and establishes a link with any one end CC of Train B according to the coupled state received from the vehicle.

[0057] Step 4: If the communication link is successfully established, the CCs between Train A and Train B exchange train formation information and positioning information. If there is specific positioning information, the CCs of Train A and Train B calculate the minimum and maximum lengths of the train after coupling according to the obtained positioning information and their respective car lengths. When both the minimum and maximum lengths of the train after coupling are within the car - length confidence interval of the train formation combination to be determined for coupling, the CCs of Train A and Train B automatically replace the corresponding train formation combination (including formation type and train type) parameters respectively, and perform mutual verification on the legality of the train formation combination after coupling. If the verification passes, it is determined that the train formation combination after coupling is legal; if the verification fails, it is determined that the train formation combination after coupling is illegal. If the communication link is not established or although the communication link is established but no specific positioning information is obtained, it is determined that the train formation combination after coupling is to be confirmed.

[0058] Explanation 1: The above - mentioned car - length confidence interval is an open interval composed of the car length of the current formation unit train and the car lengths of the possible formation trains adjacent to it. Assuming that the car lengths of the possible formation trains (including formation unit trains and formation combination trains) in actual operation are 60m, 120m, 180m, 240m, if the car length of the current formation train is 120m, then the corresponding car - length confidence interval for this formation train is (60m, 180m).

[0059] Explanation 2: The train formation information and positioning information exchanged between the CCs of Train A and Train B include:

[0060] 1) The device ID of the CC;

[0061] 2) Train positioning information;

[0062] 3) Train formation information;

[0063] 4) Train type information;

[0064] 5) Train length;

[0065] 6) Coupling train formation combination legality confirmation information (combining judgments from ZC and itself), including coupling formation combination legal, coupling formation combination illegal, and coupling formation combination to be confirmed.

[0066] Step 5: Before completing the coupling train formation combination legality confirmation, the CC of Car A and the CC of Car B manage the communication link with ZC / ATS according to their own positioning status. The CC of Car A and the CC of Car B independently perform data synchronization and sharing internally and independently perform train positioning.

[0067] Step 6: After the CC of Car A and the CC of Car B establish a link with ZC / ATS, they send the coupling status and formation-related information of the train to ZC / ATS in real time.

[0068] The coupling status and formation-related information sent by CC to ZC / ATS include:

[0069] 1) Coupling train formation combination legality confirmation information (combining judgments from ZC and itself), including coupling formation combination legal, coupling formation combination illegal, and coupling formation combination to be confirmed;

[0070] 2) Coupling status;

[0071] 3) Number of coupling trains;

[0072] 4) Identification number PVID of each formation unit train in the coupling train;

[0073] 5) Train length of each formation unit train in the coupling train;

[0074] 6) Formation information of each formation unit train in the coupling train;

[0075] 7) Train type information of each formation unit train in the coupling train;

[0076] 8) Train position information of each formation unit train in the coupling train.

[0077] Step 7: After ZC receives the coupling train formation combination legality confirmation information sent by CC, if the formation combination legality is in the to-be-confirmed state, ZC feeds back the confirmed coupling train formation combination information according to the train tracking information.

[0078] Step 8: The CC performs a legality check on the coupled train formation combination information obtained from the ZC by combining its own formation information, car body length information, and positioning information. If the check passes, it is determined that the coupled train formation combination is legal. The CC automatically loads the train parameters matching the confirmed coupled train formation combination and calculates the train control curve based on the train parameters of the coupled train formation combination. If the check fails, it is determined that the coupled train formation combination is illegal.

[0079] Step 9: The CC comprehensively judges the coupled train formation combination situation based on the information from the ZC and itself and feeds back to the ZC in real time. After the ZC receives the information that the coupled formation combination state sent by the coupled train formation combination train is in a legal state, the ZC records the coupled train formation combination information. The ZC only sends the MAL information to the main control CC after coupling. When other CCs within the coupled formation combination access, the ZC sends a special control message with turnout information to maintain train positioning and following operation.

[0080] Step 10: When the CC determines that the coupled train formation combination is illegal, the CC immediately applies emergency braking to stop the train and gives an alarm prompt through the ATS and TOD.

[0081] It should be noted that the commonly used English abbreviations in the field such as CC, ZC, ATS, and TOD in the above description can be specifically referred to the prior art.

[0082] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes but is not limited to the content described in the drawings and the above specific implementation manner. Any modification that does not deviate from the functional and structural principles of the present invention will be included in the scope of the claims.

Claims

1. A method for judging the legality of the formation combination of a coupled train, where car A is coupled with car B and car A is in front of car B, characterized in that, The method for judging legality includes the following steps: The vehicle control end of vehicle A communicates and establishes a link with any one of the CCs at either end of vehicle B. If the communication link establishment is successful, the train formation information and positioning information are exchanged between the CCs of vehicle A and vehicle B. If there is positioning information, the CCs of vehicle A and vehicle B calculate the minimum and maximum lengths of the train after coupling based on the obtained positioning information and their respective vehicle lengths. When both the minimum and maximum lengths of the train after coupling are within the vehicle length confidence interval of the train formation combination to be determined for coupling, the CCs of vehicle A and vehicle B automatically replace the corresponding train formation combination parameters for coupling, where the train formation combination parameters for coupling include the formation type and train type, and perform mutual verification on the legality of the train formation combination after coupling. If the verification passes, it is determined that the train formation combination after coupling is legal; if the verification fails, it is determined that the train formation combination after coupling is illegal. If the communication link is not established or positioning information is not obtained even though the communication link has been established, it is determined that the train formation combination after coupling is to be confirmed. After the CC of vehicle A and the CC of vehicle B establish a link with the ZC / ATS, they send the coupling status and formation-related information of the train to the ZC / ATS in real time. After the ZC receives the confirmation information on the legality of the train formation combination after coupling sent by the CC, if the legality of the formation combination is in the to-be-confirmed state, the ZC feeds back the confirmed train formation combination information to the CC according to the train tracking information. The CC verifies the legality of the confirmed train formation combination information obtained from the ZC based on the confirmed train formation combination information obtained from the ZC, combined with its own formation information, vehicle length information, and positioning information. If the verification passes, it is determined that the train formation combination after coupling is legal, and the CC automatically loads the train parameters matching the confirmed train formation combination after coupling, and calculates the train control curve according to the train formation combination train parameters. If the verification fails, it is determined that the train formation combination after coupling is illegal.

2. The method for judging the legality of the formation combination of a coupled train according to claim 1, characterized in that, If a key is inserted at the CC1 end of vehicle A; If the CC1 of vehicle A determines that the current end is a non-coupling end and the cab is in the activated state, then the CC1 of vehicle A is the vehicle control end. If the CC2 of vehicle A determines that the current end is a coupling end and the cab is in the non-activated state, then the CC2 of vehicle A is the standby end. If the CC1 of vehicle B determines that the current end is a coupling end and the cab is in the non-activated state, then the CC1 of vehicle B is the following end. If the CC2 of vehicle B determines that the current end is a non-coupling end and the cab is in the non-activated state, then the CC2 of vehicle B is the standby end.

3. The method for judging the legality of the formation combination of a coupled train according to claim 1, characterized in that, The train formation information and positioning information exchanged between the CCs of vehicle A and vehicle B include: 1) The device ID of the CC; 2) The train positioning information; 3) The train formation information; 4) The train type information; 5) The train length; 6) The confirmation information on the legality of the train formation combination after coupling, including legal train formation combination after coupling, illegal train formation combination after coupling, and train formation combination after coupling to be confirmed.

4. The method for judging the legality of the formation combination of a coupled train according to claim 1, characterized in that, Before the confirmation of the legality of the train formation combination after coupling is completed, the CCs of vehicle A and vehicle B manage the communication link with the ZC / ATS according to their own positioning status. The CCs of vehicle A and vehicle B independently perform data synchronization and sharing inside and independently perform train positioning.

5. The method for judging the legality of the formation combination of a coupled train according to claim 4, characterized in that, The coupling status and formation-related information sent by the CC to the ZC / ATS include: 1) Coupling train formation combination legality confirmation information, including legal coupling formation combination, illegal coupling formation combination, and coupling formation combination to be confirmed; 2) Coupling status; 3) Number of coupled trains; 4) Identification number PVID of each formation unit train in the coupled train; 5) Train length of each formation unit train in the coupled train; 6) Formation information of each formation unit train in the coupled train; 7) Train type information of each formation unit train in the coupled train; 8) Train position information of each formation unit train in the coupled train.

6. The method for judging the legality of the formation combination of a coupled train according to claim 1, characterized in that, The CC judges the coupling train formation combination situation and feeds it back to the ZC in real time. After the ZC receives that the coupling formation combination status sent by the coupled formation combination train is a legal status, the ZC records the coupling train formation combination information. The ZC only sends the MAL information to the main control CC after coupling. When other CCs in the coupling formation combination access, the ZC sends a special control message with turnout information to maintain train positioning and following operation.

7. The method for judging the legality of the formation combination of a coupled train according to claim 1, characterized in that, When the CC determines that the coupling train formation combination is illegal, the CC immediately applies emergency braking to control the train to stop and gives an alarm prompt through the ATS and TOD.

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