CN115402383A - Wireless reconnection method, medium and system for rail transit vehicle - Google Patents
Wireless reconnection method, medium and system for rail transit vehicle Download PDFInfo
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- CN115402383A CN115402383A CN202211179404.2A CN202211179404A CN115402383A CN 115402383 A CN115402383 A CN 115402383A CN 202211179404 A CN202211179404 A CN 202211179404A CN 115402383 A CN115402383 A CN 115402383A
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- 230000003137 locomotive effect Effects 0.000 description 17
- 230000001360 synchronised effect Effects 0.000 description 6
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
- B61B1/00—General arrangement of stations, platforms, or sidings; Railway networks; Rail vehicle marshalling systems
- B61B1/005—Rail vehicle marshalling systems; Rail freight terminals
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Abstract
The invention discloses a rail transit vehicle wireless reconnection method, medium and system, wherein the method comprises the following steps: s1, establishing primary wireless connection of a master vehicle and a slave vehicle; wherein the initial state of the slave train pipe is in a pressure maintaining state; s2, releasing the pressure of the train pipe of the main train, continuously monitoring the pressure of the train pipe of the main train and the pressure of the train pipe of the auxiliary train, judging whether the pressure of each train pipe is the same or not after the pressure of each train pipe is stable, and judging that the wireless reconnection grouping is wrong if the pressures of each train pipe are different; if the two are the same, the procedure goes to step S3: and S3, electrifying the main train lifting bow, inflating and boosting the main train pipe to relieve braking, continuously monitoring the pressure of each auxiliary train pipe, and judging that the main train and the auxiliary trains complete wireless reconnection when the pressure of the auxiliary train pipes rises to a preset threshold value. The invention has the advantages of simple operation, no need of manual confirmation, high automation degree and the like.
Description
Technical Field
The invention mainly relates to the technical field of rail transit, in particular to a rail transit vehicle wireless reconnection method, medium and system.
Background
In recent years, wireless communication has been developed with great success, thanks to the more flexible and convenient characteristics of wireless connection compared to wired connection, which has been used in more and more reconnection scenarios in the field of locomotives.
Meanwhile, the information of the vehicles connected by the wireless reconnection at present depends too much on manual confirmation, and the requirements of the wireless reconnection application on automatic grouping and automatic initial operation technology are increasing. The wireless reconnection has flexible marshalling capability and a convenient marshalling process, but the locomotive uses wireless connection to compare with wired connection, namely the wired connection is used as physical connection which is generally synchronously connected with a coupler, so that the connection confirmation of the whole marshalling is hidden, and once a cable is plugged and closed, the marshalling is completed; and the wireless connection cannot ensure whether the vehicles connected on the links are really in the same station track or not based on the characteristic that the signals of the wireless connection can be freely dispersed in the space, and the coupler connection is completed. As shown in fig. 1, when a vehicle connected to a track 1# is wirelessly organized, it is impossible to eliminate the possibility of mistakenly organizing the track 3# vehicle.
The above-described drawbacks result in wireless reconnection with the risk of connecting the wrong vehicle and grouping. In a conventional locomotive wireless reconnection system, this risk is generally eliminated by manually confirming and assisting with a train pipe connectivity test. For example, in a wireless reconnection grouping method based on digital radio communication, a wireless reconnection system needs to manually input the numbers of a master vehicle and a slave vehicle and mutually confirm the numbers to connect; for example, in the automatically connected short-distance wireless reconnection in "an automatically recognized wireless reconnection method and system", even if the wireless link is established by automatic recognition through a wireless signal, the information of the connected locomotive still needs to be confirmed manually.
No matter the wireless reconnection system for manually inputting the vehicle information or the wireless reconnection system for acquiring the vehicle information by depending on some wireless signals and automatically connecting, the train pipe communication test can be initiated only after manually checking the non-operating vehicle and confirming the working condition and the state of the non-operating vehicle so as to realize the normal operation of the system.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: aiming at the problems in the prior art, the invention provides the rail transit vehicle wireless reconnection method, medium and system which are simple and convenient to operate, easy to implement, free of manual confirmation and high in automation degree.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
a rail transit vehicle wireless reconnection method comprises the following steps:
s1, establishing primary wireless connection of a master vehicle and a slave vehicle; wherein the initial state of the slave train pipe is in a pressure maintaining state;
s2, releasing the pressure of the train pipe of the master train, continuously monitoring the pressure of the train pipe of the master train and the pressure of the train pipe of the slave train, judging whether the pressure of each train pipe is the same or not after the pressure of each train pipe is stable, and judging that the wireless reconnection grouping is wrong if the pressures of each train pipe are different; if yes, the process goes to step S3:
and S3, electrifying the main train lifting bow, inflating and boosting the main train pipe to relieve braking, continuously monitoring the pressure of each auxiliary train pipe, and judging that the main train and the auxiliary trains complete wireless reconnection when the pressure of the auxiliary train pipes rises to a preset threshold value.
As a further improvement of the above technical solution:
in step S1, a primary wireless connection between a master vehicle and a slave vehicle is established by manually inputting a vehicle number.
In step S1, after the vehicle itself is automatically determined based on the wireless signal, a preliminary wireless connection between the master and the slave is established.
In step S3, the vehicle direction is identified by the length of the rise time for each pressure rise from the train pipe to the preset pressure.
In the step S1, the slave vehicle is always in a locking state before the final connection confirmation is not finished, any operation of the master vehicle is not synchronized, and the brake is in a pressure maintaining state; in step S3, when the pressure of the slave train pipe rises to a preset threshold value, the slave train is unlocked, and after the front marshalling information is cross-compared without errors, a reconnection working state responding to the operation of the master train is entered.
In step S3, it is determined that the master vehicle and the slave vehicle complete wireless reconnection when the pressure of the slave train pipe rises to a preset threshold value within a preset time period.
The invention also discloses a computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, performs the steps of the method as described above.
The invention further discloses a rail transit vehicle wireless reconnection system, which comprises a memory and a processor, wherein the memory is stored with a computer program, and the computer program executes the steps of the method when being executed by the processor.
Compared with the prior art, the invention has the advantages that:
the rail transit vehicle wireless reconnection method of the invention releases the pressure of the train pipe of the main train after establishing the primary wireless connection, and then monitors the pressure of the train pipe of each slave train, if the marshalling is correct, the train pipe of the slave train is butted with the train pipe of the main train, when the pressure of the train pipe of the main train is released, the pressure of the slave train pipe is synchronously released (initially in a pressure maintaining state), namely the pressure of the slave train pipe and the pressure of the train pipe of the main train are synchronously changed, thus the marshalling is correct or not can be preliminarily judged according to the synchronous change of the pressure of the train pipe; then when the slave train is only in the pressure maintaining state, the wind blows through the train pipe of the master train, and the connectivity of the train pipe, namely the correctness of the marshalling, is finally confirmed by detecting the pressure of the train pipe of the slave train and the pressure of the train pipe of the master train. The method is simple and convenient to operate and easy to realize, and solves the problem that when the traditional wireless reconnection uses the train pipe for connection confirmation, the high-voltage operation is not allowed when the marshalling is not finished because the train pipe is not pressurized and wind is required, so that the reconnection confirmation cannot be automatically completed.
The method of the invention is composed of safe and automatic execution flow, which not only avoids the problem of vehicle misoperation caused by wireless error connection and no response operation, but also ensures that manual connection confirmation and marshalling intervention are not needed after the train marshalling, thereby realizing the possibility of a wireless automatic initial operation system after the train is hung.
Drawings
Fig. 1 is a diagram illustrating a wireless reconnection grouping in the prior art.
Fig. 2 is a flowchart of a wireless reconnection method according to an embodiment of the present invention.
Detailed Description
The invention is further described below with reference to the figures and the specific embodiments of the description.
As shown in fig. 2, an embodiment of the present invention provides a rail transit vehicle wireless reconnection method, including the steps of:
s1, establishing primary wireless connection of a master vehicle and a slave vehicle; wherein the initial state of the slave train pipe is in a pressure maintaining state;
s2, releasing the pressure of the train pipe of the main train, continuously monitoring the pressure of the train pipe of the main train and the pressure of the train pipe of the auxiliary train, judging whether the pressure of each train pipe is the same or not after the pressure of each train pipe is stable, and judging that the wireless reconnection grouping is wrong if the pressures of each train pipe are different; if the two are the same, the procedure goes to step S3:
and S3, electrifying the main train lifting bow, inflating and boosting the main train pipe to relieve braking, continuously monitoring the pressure of each auxiliary train pipe, and judging that the main train and the auxiliary trains complete wireless reconnection when the pressure of the auxiliary train pipes rises to a preset threshold value.
The rail transit vehicle wireless reconnection method of the invention releases the pressure of the train pipe of the main train after establishing the primary wireless connection, and then monitors the pressure of the train pipe of each slave train, if the marshalling is correct, the train pipe of the slave train is butted with the train pipe of the main train, when the pressure of the train pipe of the main train is released, the pressure of the slave train pipe is synchronously released (initially in a pressure maintaining state), namely the pressure of the slave train pipe and the pressure of the train pipe of the main train are synchronously changed, thus the marshalling is correct or not can be preliminarily judged according to the synchronous change of the pressure of the train pipe; then when the slave train is only in the pressure maintaining state, wind is blown through the train pipe of the master train, and the connectivity of the train pipe, namely the correctness of the marshalling, is finally confirmed by detecting the synchronous rise of the pressure of the train pipe of the slave train and the pressure of the train pipe of the master train. The method is simple and convenient to operate and easy to realize, and solves the problem that when the traditional wireless reconnection uses the train pipe for connection confirmation, the high-voltage operation is not allowed when the marshalling is not finished because the train pipe is not pressurized and wind is required, so that the reconnection confirmation cannot be automatically completed.
The method of the invention is composed of safe and automatic execution flow, which not only avoids the problem of vehicle misoperation caused by wireless error connection and no response operation, but also ensures that manual connection confirmation and marshalling intervention are not needed after the train marshalling, thereby realizing the possibility of a wireless automatic initial operation system after the train is hung.
In a specific embodiment, in step S1, after the vehicle number is manually input or the vehicle is automatically determined based on the wireless signal, a preliminary wireless connection between the master vehicle and the slave vehicle is established.
In one embodiment, in step S3, the vehicle direction is identified by the length of the rise time each takes from the pressure of the train pipe to the preset pressure. If the rise time is shorter, the train approaches the master train, and the formation of each slave train and the direction of the train can be obtained. The process is simple and convenient to operate and easy to realize.
Of course, the reliability of reconnection is further ensured by the rise time, and as in step S3, when the pressure of the train pipe of the slave train rises to a preset threshold value within a preset time period, it is determined that the master train and the slave train complete wireless reconnection, so as to further ensure the reliability of wireless reconnection.
In a specific embodiment, in step S1, the slave vehicle is always in a locked state before the final connection confirmation is not completed, and any operation of the master vehicle is not synchronized while the brake is in a pressure maintaining state; in step S3, when the pressure of the slave train pipe rises to a preset threshold value, the slave train is unlocked, and after the front marshalling information is cross-compared without errors, a reconnection working state responding to the operation of the master train is entered.
The embodiment of the invention also discloses a computer readable storage medium, wherein a computer program is stored on the computer readable storage medium, and the computer program executes the steps of the method when being executed by a processor.
The embodiment of the invention further discloses a rail transit vehicle wireless reconnection system, which comprises a memory and a processor, wherein the memory is stored with a computer program, and the computer program executes the steps of the method when being executed by the processor.
The invention is further illustrated by the following full specific examples:
1) Master-slave connection: the primary wireless connection of the master vehicle and the slave vehicle is completed after the vehicle number is manually input or the vehicle is automatically judged based on the wireless signal;
2) Locking the slave vehicle: before the slave vehicle finishes final connection confirmation, the slave vehicle is in a locking state, any operation of the master vehicle is not synchronized, and a brake is in a pressure maintaining state (a brake valve is cut off);
3) The main vehicle obtains the state: applying all brakes of the main vehicle (namely releasing all pressure of train pipes), continuously judging the wind pressure states of the two train pipes, and judging whether the train pipe wind pressure states of all vehicles are the same or not after the states are stable; if the pressure states of the two train pipes are different, judging that the wireless reconnection marshalling is wrong, and ending the process; if the two are the same, the next step is carried out.
4) The master vehicle initiates safety confirmation: after the working condition and the operating condition are met, the main vehicle is electrified by lifting a bow and the brake is relieved (the train pipe is charged with wind);
5) Unlocking from the vehicle: the slave train continuously monitors the pressure change of each train pipe, the direction of the locomotive is identified and confirmed through the pressure rise time difference, meanwhile, the unlocking is carried out when the pressure rise is detected to exceed a certain threshold value, and after the front marshalling information is cross-compared and confirmed to be correct, the master train enters a double-heading working state responding to the operation of the master train.
The invention provides an automatic safety confirmation method for non-manual operation vehicles (slave vehicles) in a locked link by optimizing wireless reconnection connection logic and improving train pipe connectivity check, completes the connection safety confirmation of a wireless reconnection system, eliminates the last risk item of wireless reconnection marshalling, and solves the problems that after a wireless reconnection locomotive is connected, the information of the connected locomotive needs to be confirmed manually and the train pipe connectivity check needs to be initiated manually.
The scheme is not only suitable for the wireless reconnection scene of two close-range connected locomotives, but also suitable for the wireless reconnection scene of a plurality of locomotives and long-range connected locomotives. In addition, the method can be suitable for wireless reconnection scenes of locomotives and wireless reconnection between motor train units/high-speed rails.
The invention can automatically connect the locomotives and carry out cross confirmation by combining with the wireless signals, so that the manual confirmation of connection and the intervention of marshalling are not needed after the marshalling of the train, the automatic initial operation of the wireless connection becomes possible after the train is hung continuously, and the wireless reconnection of the locomotives can really realize one-step operation, namely, the train can move immediately after the train is connected.
Description of related Art:
reconnection: in order to improve the transportation performance, a plurality of locomotives are connected and are integrally controlled through a first locomotive, namely, the train is reconnected.
Train pipe: besides the coupler, the double-heading locomotive needs to connect the train pipes together, and the train pipes are the train integral braking control structure independent of a circuit system. When the train pipe is pressurized, the train is in a release state, and when the train pipe is not pressurized, the train is in a brake state.
Train pipe connectivity checking: the locomotive with completed reconnection must be subjected to a train pipe connectivity check to check whether the vehicle is properly connected and the braking system is normal. Generally speaking, before train pipe connectivity check, the whole train needs to be in a pantograph-ascending power-on state to drive a fan to supplement the pressure of the train pipe, and the flow is that after the pressure of the train pipe is supplemented, the main train is relieved independently, and the pressure of the secondary train is detected to be reduced and then the secondary train passes through.
As used in this disclosure and in the claims, the terms "a," "an," "the," and/or "the" are not intended to be inclusive in the singular, but rather are inclusive in the plural unless the context clearly dictates otherwise. The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Likewise, the word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect.
The above are only preferred embodiments of the present invention, and the scope of the present invention is not limited to the above examples, and all technical solutions that fall under the spirit of the present invention belong to the scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may be made by those skilled in the art without departing from the principle of the invention.
Claims (8)
1. A rail transit vehicle wireless reconnection method is characterized by comprising the following steps:
s1, establishing primary wireless connection of a master vehicle and a slave vehicle; wherein the initial state of the slave train pipe is in a pressure maintaining state;
s2, releasing the pressure of the train pipe of the master train, continuously monitoring the pressure of the train pipe of the master train and the pressure of the train pipe of the slave train, judging whether the pressure of each train pipe is the same or not after the pressure of each train pipe is stable, and judging that the wireless reconnection grouping is wrong if the pressures of each train pipe are different; if the two are the same, the procedure goes to step S3:
and S3, electrifying the main train lifting bow, inflating and boosting the main train pipe to relieve braking, continuously monitoring the pressure of each auxiliary train pipe, and judging that the main train and the auxiliary trains complete wireless reconnection when the pressure of the auxiliary train pipes rises to a preset threshold value.
2. The rail transit vehicle wireless reconnection method according to claim 1, wherein in step S1, a preliminary wireless connection of a master vehicle and a slave vehicle is established by manually inputting a vehicle number.
3. The rail transit vehicle wireless reconnection method according to claim 1, wherein in step S1, after the vehicle itself is automatically discriminated based on the wireless signal, a preliminary wireless connection of the master vehicle and the slave vehicle is established.
4. The rail transit vehicle wireless reconnection method according to claim 1, 2 or 3, wherein in step S3, the vehicle direction is identified by the length of the rise time each takes from the pressure of the train pipe to the preset pressure.
5. The rail transit vehicle wireless reconnection method according to claim 1, 2 or 3, wherein in step S1, the slave vehicle is always in a locked state without synchronizing any operation of the master vehicle before the final connection confirmation is not completed, while the brake is in a pressure maintaining state; in step S3, when the pressure of the slave train pipe rises to a preset threshold value, the slave train is unlocked, and after the front marshalling information is cross-compared without errors, a reconnection working state responding to the operation of the master train is entered.
6. The rail transit vehicle wireless reconnection method according to claim 1, 2 or 3, wherein in step S3, when the pressure of the train pipe of the slave vehicle rises to a preset threshold value within a preset time period, the master vehicle and the slave vehicle are judged to complete wireless reconnection.
7. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 6.
8. A rail transit vehicle wireless reconnection system comprising a memory and a processor, said memory having stored thereon a computer program, characterized in that said computer program, when executed by the processor, performs the steps of the method according to any one of claims 1 to 6.
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| CN202211179404.2A CN115402383A (en) | 2022-09-26 | 2022-09-26 | Wireless reconnection method, medium and system for rail transit vehicle |
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| CN202211179404.2A CN115402383A (en) | 2022-09-26 | 2022-09-26 | Wireless reconnection method, medium and system for rail transit vehicle |
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