A method and system for detecting integrity of a maglev train formation

Abstract

The maglev train marshaling integrity detection method and system provided by the present invention is to determine the distance between the locomotive of the first train and the parking space of the Nth train in two different ways after the N trains are marshaled, and use them as the first marshaling length and the second marshaling length respectively. According to the first marshaling length and the second marshaling length, it is judged whether the two meet the preset conditions. If they meet, it is determined that the train marshaling is complete. If not, the train marshaling is incomplete and there is a safety hazard. The distance between the locomotive of the first train and the parking space of the Nth train is obtained in two different ways, and whether the train marshaling is complete is determined according to whether the detected marshaling length meets the preset conditions. Compared with the prior art, it can reduce the reliance on a single detection method and improve reliability and redundancy.

Description

Technical Field

[0001] The present invention relates to the field of maglev operation and maintenance control technology, and in particular to a maglev train marshaling integrity detection method and system. Background Art

[0002] Whether the train formation is complete is very important for the safety of train operation. If the middle carriage of the train is accidentally disconnected from the front of the train, the disconnected middle carriage will have no power, which will cause the rear train to hit this carriage, resulting in a major safety accident.

[0003] Under the existing technology, when trains with car-to-car communication and virtual coupling are running, the integrity of the train set needs to be monitored in real time. However, the current technology uses wireless communication between the train and all cars in the train set, and then obtains the position and status of all cars in the train set, so as to monitor the integrity of the train set. In this way, the response speed of monitoring the train set is slow, and if the communication is unstable, the detection will be seriously delayed, resulting in the inability to handle emergencies in a timely manner.

[0004] Therefore, it is an urgent problem to be solved by those skilled in the art to provide a method and system for detecting the integrity of a maglev train formation, which can reduce the reliance on a single detection method and improve reliability and redundancy. Summary of the invention

[0005] The purpose of the present invention is to provide a method for detecting the integrity of a maglev train formation, which has clear logic, is safe, effective, reliable and easy to operate, can reduce the reliance on a single detection method, and improves reliability and redundancy.

[0006] Based on the above objectives, the technical solution provided by the present invention is as follows:

[0007] A method for detecting the integrity of a maglev train marshaling comprises the following steps:

[0008] After N trains are marshaled, the distance between the front of the first train and the rear of the Nth train is determined by the first method as the first marshaling length;

[0009] After the N trains are marshaled, the distance between the front of the first train and the rear of the Nth train is determined by the second method as the second marshaling length;

[0010] Determining whether the first group length and the second group length meet a preset condition;

[0011] If yes, the train formation is determined to be complete.

[0012] Preferably, after the N trains are marshaled, determining the distance between the front of the first train and the rear of the Nth train by a first method as the first marshaling length comprises the following steps:

[0013] After N trains are marshaled, a first wireless device is arranged at the front of the first train to obtain information of the first train;

[0014] Setting an Nth wireless device at the rear of the Nth train to obtain information about the Nth train;

[0015] Simultaneously, the first train information and the Nth train information are transmitted to a preset main console at a preset transmission speed, and the receiving time of the first train information and the receiving time of the Nth train information are respectively obtained;

[0016] The first train length is determined according to the preset transmission speed, the reception time of the first train information and the reception time of the Nth train information.

[0017] Preferably, the first train length is determined according to the preset transmission speed, the reception time of the first train information and the reception time of the Nth train information, specifically:

[0018] Obtaining a first distance according to a product of the preset transmission speed and a reception time of the first train information;

[0019] Obtaining a second distance according to the product of the preset transmission speed and the reception time of the Nth train information;

[0020] According to the difference between the first distance and the second distance, the distance between the front of the first train and the rear of the Nth train is obtained as the first marshaling length.

[0021] Preferably, after the main console obtains the first train information and the Nth train information, the following steps are further included:

[0022] respectively determining whether the first train information and the Nth train information are normal;

[0023] If not, disconnect the corresponding wireless equipment of the train and perform emergency fault handling of the train.

[0024] Preferably, after the N trains are marshaled, determining the distance between the front of the first train and the rear of the Nth train by a second method as the second marshaling length comprises the following steps:

[0025] After N trains are marshaled, infrared transmitters and infrared receivers are respectively set at the rear and front of each train, so that infrared lasers penetrate each train to obtain the third distance between the front and rear of each train;

[0026] The infrared transmitter and the infrared receiver are respectively arranged at the front of the previous train and the rear of the next train, so that the infrared laser is emitted from the front of the previous train to the rear of the next train, so as to obtain the fourth distance between the front of the previous train and the rear of the next train;

[0027] The sum of the N third distances and the N-1 fourth distances is used as the second grouping length.

[0028] Preferably, after the infrared laser penetrates each train and the infrared laser is emitted from the front of the previous train to the rear of the next train, the following steps are also included:

[0029] Determining whether the infrared laser is abnormal;

[0030] If so, disconnect the infrared laser corresponding to the train and perform emergency train fault processing.

[0031] Preferably, the determining whether the first grouping length and the second grouping length satisfy a preset condition comprises the following steps:

[0032] Determine whether the absolute value of the difference between the first marshaling length and the second marshaling length is not greater than a preset first error threshold;

[0033] Or, determine whether the absolute value of the ratio of the first grouping length to the second grouping length is not greater than a preset second error threshold.

[0034] A maglev train marshaling integrity detection system, comprising:

[0035] A first marshaling module, configured to determine, after marshaling N trains, a distance between a front locomotive of a first train and a rear locomotive of an Nth train by a first method as a first marshaling length;

[0036] A second marshaling module is used to determine the distance between the front of the first train and the rear of the Nth train by a second method after marshaling the N trains as a second marshaling length;

[0037] A judgment module is used to judge whether the first marshaling length and the second marshaling length meet a preset condition; if so, it is determined that the train marshaling is complete.

[0038] The maglev train marshaling integrity detection method provided by the present invention is to determine the distance between the front of the first train and the parking space of the Nth train in two different ways after N trains are marshaled, which are respectively used as the first marshaling length and the second marshaling length. According to the first marshaling length and the second marshaling length, it is judged whether both meet the preset conditions. If they do, it is determined that the train marshaling is completed. If not, the train marshaling is incomplete and there is a safety hazard.

[0039] The present invention can obtain the distance between the first train head and the Nth train parking space in two different ways, and determine whether the train formation is complete according to whether the detected formation length meets the preset conditions. Compared with the prior art, it can reduce the dependence on the use of a single detection method and improve reliability and redundancy.

[0040] The present invention also provides a method and system for detecting the integrity of a maglev train formation. Since these methods and system have the same technical concept and solve the same technical problem, they should have the same beneficial effects and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0042] Figure 1 A flow chart of a method for detecting integrity of a maglev train set provided by the present invention;

[0043] Figure 2 A flowchart of step S1 provided in an embodiment of the present invention;

[0044] Figure 3 A flowchart of step S2 provided in an embodiment of the present invention;

[0045] Figure 4 A schematic diagram of the structure of a maglev train marshaling integrity detection system provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] The embodiments of the present invention are written in a progressive manner.

[0048] The embodiment of the present invention provides a method and system for detecting the integrity of a maglev train formation, which mainly solves the technical problem in the prior art that the response speed of the monitoring formation is slow, and if the communication is unstable, the detection will be seriously delayed, resulting in the inability to handle emergencies in a timely manner.

[0049] like Figure 1As shown, a method for detecting the integrity of a maglev train formation comprises the following steps:

[0050] S1. After the N trains are marshaled, the distance between the front of the first train and the rear of the Nth train is determined by the first method as the first marshaling length;

[0051] S2. After the N trains are marshaled, the distance between the front of the first train and the rear of the Nth train is determined by the second method as the second marshaling length;

[0052] S3. Determine whether the first group length and the second group length meet the preset conditions;

[0053] If yes, the train formation is determined to be complete.

[0054] In step S1 to step S3, after N trains are formed, the distance between the front of the first train and the parking space of the Nth train is determined in two different ways, which are used as the first formation length and the second formation length respectively. According to the first formation length and the second formation length, it is judged whether both meet the preset conditions. If they do, it is determined that the train formation is completed. If not, the train formation is incomplete and there is a safety hazard.

[0055] In this embodiment, the maglev train generally adopts a three-carriage mode for whole vehicle operation, that is, N is generally set to 3.

[0056] like Figure 2 As shown, preferably, step S1 includes the following steps:

[0057] A1. After the N trains are marshaled, a first wireless device is set at the front of the first train to obtain information about the first train;

[0058] A2. Set up the Nth wireless device at the rear of the Nth train to obtain the Nth train information;

[0059] A3. Simultaneously transmit the first train information and the Nth train information to the preset main console at a preset transmission speed, and obtain the reception time of the first train information and the reception time of the Nth train information respectively;

[0060] A4. Determine the first train length based on the preset transmission speed, the reception time of the first train information, and the reception time of the Nth train information.

[0061] In step A1, after N trains are marshaled, a first wireless device is set at the front of the first train to collect train information of the first train through the first wireless device;

[0062] In step A2, similarly, after marshaling, the train information of the Nth train is collected through the low-N wireless device installed at the rear of the Nth train;

[0063] In step A3, after the corresponding train information is collected, it is simultaneously transmitted to a master control station at a preset position at a preset transmission speed, and the master control station records the corresponding receiving time when receiving the transmitted train information;

[0064] In step A4, the first train set length is determined based on the recorded train information reception time and the preset transmission speed.

[0065] Preferably, step A4 is specifically:

[0066] Obtaining a first distance according to a product of a preset transmission speed and a reception time of the first train information;

[0067] Obtaining a second distance according to the product of a preset transmission speed and a reception time of the Nth train information;

[0068] According to the difference between the first distance and the second distance, the distance between the front of the first train and the rear of the Nth train is obtained as the first marshaling length.

[0069] During actual use, the first distance, that is, the virtual distance from the front of the first train to the preset main console position, is calculated and obtained through the preset transmission speed and the recorded first train information reception time; similarly, the second distance, that is, the virtual distance from the rear of the Nth train to the preset main console position, is calculated and obtained in the same way; the absolute value of the difference between the two virtual distances, that is, the virtual distance between the front of the first train and the rear of the Nth train, is compared as the first formation length.

[0070] Preferably, after the main console obtains the first train information and the Nth train information, the following steps are also included:

[0071] Determine whether the first train information and the Nth train information are normal;

[0072] If not, disconnect the corresponding wireless equipment of the train and perform emergency fault handling of the train.

[0073] During actual use, when the main console receives the first train information and the Nth train information, the judgment module set in the main console is used to judge whether the train information is normal. That is, the train information when the train is in a normal state is input into the main console in advance, and the normal train information is called through the judgment module to judge whether the real-time transmitted first train information and Nth train information are abnormal. If an abnormality occurs, the wireless device connected to the main console is disconnected to perform emergency train fault processing.

[0074] like Figure 3 As shown, preferably, step S2 includes the following steps:

[0075] B1. After N trains are marshaled, infrared transmitters and infrared receivers are respectively set at the rear and front of each train, so that infrared lasers penetrate each train to obtain the third distance between the front and rear of each train;

[0076] B2. An infrared transmitter and an infrared receiver are respectively arranged at the front of the previous train and the rear of the next train, so that the infrared laser is emitted from the front of the previous train to the rear of the next train to obtain the fourth distance between the front of the previous train and the rear of the next train;

[0077] B3. Take the sum of N third distances and N-1 fourth distances as the second grouping length.

[0078] In step B1, after N trains are marshaled, an infrared transmitter is set at the rear of each train, and an infrared receiver is set at the front of each train. The infrared laser emission direction of the infrared transmitter is toward the infrared receiver, so that the infrared laser penetrates each train, thereby obtaining the third distance between the front and the rear of each train, that is, the length of the infrared laser in the internal space of each train;

[0079] In step B2, an infrared transmitter is arranged at the front of the preceding train, and an infrared receiver is correspondingly arranged at the rear of the following train. The infrared laser of the infrared transmitter is emitted in a direction toward the infrared receiver, so that the infrared laser is emitted from the front of the preceding train to the rear of the following train, thereby obtaining a fourth distance between the front of the preceding train and the rear of the following train;

[0080] In step B3, N third distances and N-1 fourth distances are added together, and the sum is used as the second grouping length.

[0081] Preferably, after the infrared laser penetrates each train and the infrared laser is emitted from the front of the previous train to the rear of the next train, the following steps are also included:

[0082] Determine whether there is any abnormality in the infrared laser;

[0083] If so, disconnect the infrared laser corresponding to the train and perform emergency train fault processing.

[0084] During actual application, after executing the process from step B1 to step B2, it is determined whether there is any abnormality in the infrared laser, that is, whether the infrared laser inside each train and the infrared laser shot from the front of the previous train to the rear of the next train are undetectable. If so, the infrared laser corresponding to the train with the laser abnormality is disconnected, and emergency fault handling is performed on the train.

[0085] Preferably, determining whether the first group length and the second group length satisfy a preset condition comprises the following steps:

[0086] Determine whether the absolute value of the difference between the first group length and the second group length is not greater than a preset first error threshold;

[0087] Or, determine whether the absolute value of the ratio of the first group length to the second group length is not greater than a preset second error threshold.

[0088] In the actual application process, whether the preset conditions are met is determined by setting corresponding preset conditions. There are many options. In the present embodiment, the judgment is made by ratio and difference. The first method is to obtain the absolute value of the difference by subtracting the first grouping length from the second grouping length, and compare the absolute value of the difference with the preset first error threshold; the second method is to obtain the absolute value of the ratio by subtracting the first grouping length from the second grouping length, and compare the absolute value of the ratio with the preset second error threshold.

[0089] like Figure 4 As shown, a maglev train marshaling integrity detection system comprises:

[0090] A first marshaling module, configured to determine, after marshaling N trains, a distance between a front locomotive of a first train and a rear locomotive of an Nth train by a first method as a first marshaling length;

[0091] A second marshaling module is used to determine the distance between the front of the first train and the rear of the Nth train by a second method after marshaling the N trains as a second marshaling length;

[0092] The judgment module is used to judge whether the first marshaling length and the second marshaling length meet the preset conditions; if so, it is determined that the train marshaling is complete.

[0093] During actual application, the present invention also provides a maglev train marshaling integrity detection system, which is provided with a first marshaling module for obtaining a first marshaling length through a first method, and a second marshaling module for obtaining a second marshaling length through a second method; a judgment module is also provided to judge whether the first marshaling length and the second marshaling length meet a preset condition. If so, it is determined that the train marshaling is complete.

[0094] In the embodiments provided in the present application, it should be understood that the disclosed methods and systems can be implemented in other ways. The system embodiments described above are merely schematic. For example, the division of modules is only a logical function division. There may be other division methods in actual implementation, such as: multiple modules or components can be combined, or can be integrated into another system, or some features can be ignored, or not executed. In addition, the coupling, direct coupling, or communication connection between the components shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or modules, which can be electrical, mechanical or other forms.

[0095] In addition, all functional modules in the embodiments of the present invention may be integrated into one processor, or each module may be a separate device, or two or more modules may be integrated into one device; each functional module in the embodiments of the present invention may be implemented in the form of hardware or in the form of hardware plus software functional units.

[0096] A person of ordinary skill in the art can understand that all or part of the steps of implementing the above method embodiment can be completed by program instructions and related hardware. The aforementioned program instructions can be stored in a computer-readable storage medium. When the program instructions are executed, the steps of the above method embodiment are executed; and the aforementioned storage medium includes: a mobile storage device, a read-only memory (ROM), a magnetic disk or an optical disk, and other media that can store program codes.

[0097] It should be understood that the use of "system", "device", "unit" and / or "module" in this application is only a method for distinguishing different components, elements, parts, parts or assemblies at different levels. However, if other words can achieve the same purpose, the word can be replaced by other expressions.

[0098] As shown in this application and claims, unless the context clearly indicates an exception, the words "a", "an", "a kind" and / or "the" do not refer to the singular, but also include the plural. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of clearly identified steps and elements, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements. The elements defined by the sentence "includes a..." do not exclude the existence of other identical elements in the process, method, commodity or device that includes the elements.

[0099] In the following, the terms "first" and "second" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0100] If a flow chart is used in the present application, the flow chart is used to illustrate the operations performed by the system according to the embodiment of the present application. It should be understood that the preceding or following operations are not necessarily performed accurately in order. On the contrary, each step can be processed in reverse order or simultaneously. At the same time, other operations can also be added to these processes, or a certain step or several steps of operations can be removed from these processes.

[0101] The above is a detailed introduction to a method and system for detecting integrity of a maglev train set provided by the present invention. The above description of the disclosed embodiments enables professionals and technicians in the field to implement or use the present invention. Various modifications to these embodiments will be obvious to professionals and technicians in the field, and the general principles defined in this article can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown in this article, but will conform to the widest scope consistent with the principles and novel features disclosed in this article.

Claims

1. A method for detecting the integrity of a maglev train, characterized in that: The steps include: After N trains are marshaled, the distance between the front of the first train and the rear of the Nth train is determined by the first method as the first marshaling length; After the N trains are marshaled, the distance between the front of the first train and the rear of the Nth train is determined by the second method as the second marshaling length; Determining whether the first group length and the second group length meet a preset condition; If so, it is determined that the train formation is complete; After the N trains are marshaled, the distance between the front of the first train and the rear of the Nth train is determined by the second method as the second marshaling length, including the following steps: After N trains are marshaled, infrared transmitters and infrared receivers are respectively set at the rear and front of each train, so that infrared lasers penetrate each train to obtain the third distance between the front and rear of each train; The infrared transmitter and the infrared receiver are respectively arranged at the front of the previous train and the rear of the next train, so that the infrared laser is emitted from the front of the previous train to the rear of the next train, so as to obtain the fourth distance between the front of the previous train and the rear of the next train; The sum of the N third distances and the N-1 fourth distances is used as the second grouping length.

2. The method for detecting the integrity of a maglev train set according to claim 1, characterized in that: After the N trains are marshaled, the distance between the front of the first train and the rear of the Nth train is determined by a first method as the first marshaling length, including the following steps: After N trains are marshaled, a first wireless device is arranged at the front of the first train to obtain information of the first train; Setting an Nth wireless device at the rear of the Nth train to obtain information about the Nth train; Simultaneously, the first train information and the Nth train information are transmitted to a preset main console at a preset transmission speed, and the receiving time of the first train information and the receiving time of the Nth train information are respectively obtained; The first train length is determined according to the preset transmission speed, the reception time of the first train information and the reception time of the Nth train information.

3. The method for detecting the integrity of a maglev train set according to claim 2, characterized in that: The determining the first marshaling length according to the preset transmission speed, the receiving time of the first train information, and the receiving time of the Nth train information is specifically: Obtaining a first distance according to a product of the preset transmission speed and a reception time of the first train information; Obtaining a second distance according to the product of the preset transmission speed and the reception time of the Nth train information; According to the difference between the first distance and the second distance, the distance between the front of the first train and the rear of the Nth train is obtained as the first marshaling length.

4. The method for detecting the integrity of a maglev train set as claimed in claim 2, characterized in that: After the main console obtains the first train information and the Nth train information, the following steps are also included: respectively determining whether the first train information and the Nth train information are normal; If not, disconnect the corresponding wireless equipment of the train and perform emergency fault handling of the train.

5. The method for detecting the integrity of a maglev train set according to claim 1, characterized in that: After the infrared laser penetrates each train and the infrared laser is emitted from the front of the previous train to the rear of the next train, the following steps are also included: Determining whether the infrared laser is abnormal; If so, disconnect the infrared laser corresponding to the train and perform emergency train fault processing.

6. The method for detecting the integrity of a maglev train set according to claim 1, characterized in that: The determining whether the first grouping length and the second grouping length satisfy a preset condition comprises the following steps: Determine whether the absolute value of the difference between the first marshaling length and the second marshaling length is not greater than a preset first error threshold; Or, determine whether the absolute value of the ratio of the first grouping length to the second grouping length is not greater than a preset second error threshold.

7. A maglev train marshaling integrity detection system, characterized in that: include: A first marshaling module, configured to determine, after marshaling N trains, a distance between a front locomotive of a first train and a rear locomotive of an Nth train by a first method as a first marshaling length; A second marshaling module is used to determine the distance between the front of the first train and the rear of the Nth train by a second method after marshaling the N trains as a second marshaling length; A judging module, used to judge whether the first marshaling length and the second marshaling length meet a preset condition; if so, determining that the train marshaling is complete; The second marshaling module is specifically used to respectively set an infrared transmitter and an infrared receiver at the rear and front of each train after marshaling N trains, so that the infrared laser penetrates each train to obtain the third distance between the front and rear of each train; The infrared transmitter and the infrared receiver are respectively arranged at the front of the previous train and the rear of the next train, so that the infrared laser is emitted from the front of the previous train to the rear of the next train, so as to obtain the fourth distance between the front of the previous train and the rear of the next train; The sum of the N third distances and the N-1 fourth distances is used as the second grouping length.

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