CN113753101A - Synchronous control fusion communication method for heavy-load networked electric locomotive - Google Patents
Synchronous control fusion communication method for heavy-load networked electric locomotive Download PDFInfo
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- CN113753101A CN113753101A CN202010500636.8A CN202010500636A CN113753101A CN 113753101 A CN113753101 A CN 113753101A CN 202010500636 A CN202010500636 A CN 202010500636A CN 113753101 A CN113753101 A CN 113753101A
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Abstract
The invention provides a synchronous control fusion communication method for a heavy-load networked electric locomotive, which comprises the following steps: the synchronous operation control equipment of the master control locomotive latches pre-recorded marshalling information and sends the marshalling information to a GSM-R ground marshalling server; the GSM-R ground grouping server stores the grouping information; the GSM-R communication module of the master control locomotive sends an operation control data frame to the GSM-R communication module of the slave control locomotive; the GSM-R communication module of the slave control locomotive sends a state reply data frame to the GSM-R communication module of the slave control locomotive; the synchronous operation control equipment of the master control locomotive and the slave control locomotive continuously judges whether the GSM-R communication module has a fault, when the GSM-R communication module has the fault, the data transmission radio communication module is used for communication, and when the GSM-R communication module is recovered, the GSM-R communication module is used for communication.
Description
Technical Field
The invention relates to the technical field of wireless communication, in particular to a synchronous control fusion communication method for a heavy-load networked electric locomotive.
Background
With the further development of heavy haul railways, the loading tonnage of heavy haul trains is increasing, which inevitably increases the length of the trains. When a wireless reconnection synchronous control system is applied to a heavy-duty train, the traditional data transmission radio station communication mode has certain limitation.
The existing wireless reconnection mostly communicates through a data transmission radio station. The synchronous control system sends the control data of the master control locomotive to the slave control locomotive through the mobile digital radio stations arranged on the master control locomotive and the slave control locomotive, and simultaneously monitors the state of the slave locomotive to realize the synchronous control of the train. Because the transmission capability of electromagnetic waves in space is limited, the distance between workshops when the data radio stations are used for communication marshalling is generally limited to be within one kilometer, the communication quality is greatly reduced when the distance exceeds the range, and even communication interruption occurs, so that the synchronous control performance is reduced, and serious consequences can be caused. Although the problems can be alleviated to a certain extent by reasonable distribution of locomotives and relay forwarding technology of data transmission radio stations, the driving safety cannot be fundamentally ensured.
Disclosure of Invention
In view of the above, the present invention provides a method and a system for a heavy-duty networked electric locomotive to perform synchronous operation and converged communication, so as to solve the problem that the communication quality of the existing locomotive using a data transmission radio station for communication marshalling is very low or even interrupted.
Based on the above purpose, the present invention provides a heavy load networked electric locomotive synchronous control fusion communication method, including:
s300, the synchronous operation control equipment of the master control locomotive latches pre-recorded marshalling information of the master control locomotive and sends the marshalling information to a GSM-R ground marshalling server, wherein the marshalling information comprises master control locomotive information and slave control locomotive information in the same marshalling;
s400, a GSM-R communication module of a master control locomotive receives an operation control data frame sent by synchronous operation control equipment of the master control locomotive according to a time period of preset duration, and the GSM-R communication module of the master control locomotive sends the operation control data frame to a GSM-R communication module of a slave control locomotive;
s500, receiving the operation control data frame from a GSM-R communication module of the slave control machine vehicle, sending the operation control data frame to synchronous operation control equipment of the slave control machine vehicle, receiving the operation control data frame by the slave control machine vehicle, and sending a state reply data frame to the GSM-R communication module of the slave control machine vehicle;
s600, the synchronous operation control device of the master control locomotive and the synchronous operation control device of the slave control locomotive continuously judge whether the GSM-R communication module has a fault, when the GSM-R communication module has the fault, the data transmission radio communication module is used for communication, and when the GSM-R communication module is recovered, the GSM-R communication module is used for communication.
In one embodiment, step S300 further includes, before,
sending obtained pre-recorded marshalling information of the slave control locomotive from synchronous operation control equipment of the slave control locomotive to a data transmission radio communication module of the slave control locomotive, sending the received pre-recorded marshalling information of the slave control locomotive from the data transmission radio communication module of the slave control locomotive to a data transmission radio communication module of a master control locomotive, and simultaneously sending a registration request from a GSM-R communication module of the slave control locomotive to a GSM-R core network server;
the method comprises the steps that synchronous operation control equipment of a master control locomotive obtains pre-recorded marshalling information of the master control locomotive, and a GSM-R communication module of the master control locomotive sends a registration request to a GSM-R core network server; meanwhile, the synchronous operation control equipment of the master control locomotive receives pre-recorded marshalling information of the slave control locomotive, which is sent by a data transmission radio station of the master control locomotive, compares whether the pre-recorded marshalling information of the slave control locomotive is consistent with the pre-recorded marshalling information of the master control locomotive, and confirms that the marshalling is connected with the slave control locomotive when the pre-recorded marshalling information of the slave control locomotive is consistent with the pre-recorded marshalling information of the master control locomotive.
In one embodiment, step S600 includes: the synchronous operation control equipment of the master control locomotive continuously judges whether the GSM-R communication is in fault, and when the GSM-R communication is judged to be in fault, the data transmission radio station communication module of the master control locomotive sends data transmission radio station starting information to the data transmission radio station communication module of the slave control locomotive;
and when the synchronous operation control equipment of the master control locomotive judges that the GSM-R communication is recovered to be normal, sending GSM-R starting information to the GSM-R communication module of the master control locomotive, and sending the received GSM-R starting information to the GSM-R communication module of the slave control locomotive by the GSM-R communication module of the master control locomotive.
In one embodiment, the determining that the GSM-R communication failure occurs includes determining that the GSM-R communication failure occurs when the synchronous operation control device of the master locomotive does not receive a status reply data frame sent by the GSM-R communication module of the master locomotive within a preset number of preset duration periods;
the judging that the GSM-R communication is recovered to be normal comprises the step of judging that the GSM-R communication is recovered to be normal when the synchronous operation control equipment of the master control locomotive receives the state reply data frames sent by the GSM-R communication module of the master control locomotive within a preset number of preset time periods.
In one embodiment, step S600 includes: the method comprises the steps that whether GSM-R communication is in fault or not is continuously judged by synchronous operation control equipment of a slave control machine vehicle, when the synchronous operation control equipment of a certain slave control machine vehicle judges that the GSM-R communication is in fault, data transmission radio station starting information is sent to a data transmission radio station communication module of the slave control machine vehicle, and the data transmission radio station communication module of the slave control machine vehicle sends the received data transmission radio station starting information to the data transmission radio station communication module of a master control locomotive and data transmission radio station communication modules of other slave control machine vehicles;
and when the synchronous operation control equipment of the slave control locomotive judges that the GSM-R communication is recovered to be normal, sending GSM-R communication enabling information to the GSM-R communication module of the slave control locomotive, and sending the received GSM-R enabling information to the GSM-R communication module of the master control locomotive and the GSM-R communication modules of other slave control locomotives by the GSM-R communication module of the slave control locomotive.
In one embodiment, the determining that the GSM-R communication fault occurs includes determining that the GSM-R communication fault occurs when the synchronous operation control device of a certain slave vehicle does not receive the operation control data frame sent by the GSM-R communication module of the slave vehicle within a preset number of preset time periods;
judging that the GSM-R communication is recovered to be normal comprises judging that the GSM-R communication is recovered when the synchronous operation control equipment of the slave control locomotive receives operation control data frames sent by the GSM-R communication module of the slave control locomotive within a preset number of preset time periods.
In one embodiment, the master locomotive compares the pre-entered consist information from the master locomotive to the pre-entered consist information from the master locomotive for a predetermined period of time.
In one embodiment, the preset number of preset time periods is 2-4 time periods of preset time duration.
In one embodiment, the master locomotive information includes a master locomotive model, a master locomotive number, master slave settings, a running direction, a master locomotive empty weight state, and a vehicle brake system hold pressure value.
In one embodiment, the slave control locomotive information comprises a slave control locomotive model, a slave control locomotive number, a master-slave setting, a running direction, a marshalling serial number and a marshalling number.
From the above, the synchronous control fusion communication method for the heavy-load networked electric locomotive provided by the invention has the advantages that the data transmission radio communication modules of the master control train and the slave control train are marshalled through the synchronous operation control device of the master control locomotive, and the marshalling information is sent to the GSM-R ground marshalling server, so that the marshalling of the GSM-R communication modules of the master control locomotive and the slave control train is realized. When the train runs, the synchronous operation control equipment of the master control locomotive and the synchronous operation control equipment of the slave control locomotive transmit data frames through the GSM-R communication module, and the data transmission radio station is started up and is hot-standby. Meanwhile, the synchronous operation control equipment of the master control locomotive and the synchronous operation control equipment of the slave control locomotive continuously monitor the state of the GSM-R communication, when the GSM-R communication is abnormal, the data transmission radio station is switched to communicate, when the GSM-R communication is recovered, the data transmission radio station is switched to the GSM-R communication, and the data transmission radio station is started up for hot standby. Therefore, the stability of long-distance communication is realized, the efficiency of synchronous operation control is improved, and the running efficiency of the heavy-load networked electric locomotive is greatly improved.
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In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic diagram of a basic model of a synchronous operation and control converged communication method for a heavy-duty networked electric locomotive according to an embodiment of the present invention;
fig. 2 is a flowchart of a method for synchronous operation and control of a heavy-duty networked electric locomotive and a converged communication method according to an embodiment of the present invention;
FIG. 3 is a schematic flow chart of a master locomotive and slave locomotive consist according to an embodiment of the present invention;
FIG. 4 is a schematic diagram illustrating a communication flow of the train operation redundancy fusion according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a GSM-R connection loss determination process according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to specific embodiments and the accompanying drawings.
It is to be noted that technical terms or scientific terms used in the embodiments of the present invention should have the ordinary meanings as understood by those having ordinary skill in the art to which the present disclosure belongs, unless otherwise defined. 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. 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. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
The inventor of the invention finds that the length of the heavy-duty train is often as long as kilometers along with the increase of the loading tonnage of the heavy-duty train in the long-term communication research process of the wireless reconnection synchronous control system of the heavy-duty freight railway, for example, the length of a typical 2 ten thousand ton heavy-duty train can reach 2500 meters. The traditional communication mode of the data transmission radio station can not meet the communication requirement of a heavy-duty train with large tonnage, can cause great influence on the synchronous control of the heavy-duty train, greatly threatens the driving safety of the heavy-duty train, and causes the problems of communication distance limitation and unstable communication link of a networked electric locomotive of a wireless reconnection synchronous control system of a heavy-duty freight railway.
The inventors of the present invention have noted that GSM-R communication can solve the distance limitation and the delay is low; meanwhile, the speed of the digital radio station which does not need to register in the network to initiate communication is higher than that of a GSM-R network; the GSM-R and the data transmission station are simultaneously started in the running of the train, so that the GSM-R and the data transmission station can be mutually hot standby redundancy. Based on the method, the inventor provides a method and a system for the synchronous control and fusion communication of the heavy-load networked electric locomotive, and the GSM-R network is introduced into the synchronous control communication of the locomotive, and the fusion communication of the data transmission radio station is synchronously used, so that the communication stability of a synchronous control system can be improved, the communication interruption can be reduced, the synchronous control efficiency can be further improved, the train impact phenomenon can be reduced, and the train running stability and safety can be improved.
Please refer to fig. 1, which is a schematic diagram of a basic model of a synchronous control and convergence communication method for a heavy-duty networked electric locomotive according to the present invention. The model mainly comprises a heavy-load networked electric locomotive and a GSM-R wireless communication network server, wherein the communication mode of the locomotive comprises GSM-R wireless communication network communication based on base station type communication and data transmission radio station communication based on space wave transmission.
The synchronous control system comprises synchronous operation control equipment, a data transmission radio communication module and a GSM-R communication module which are arranged on a master control locomotive, and synchronous operation control equipment, a data transmission radio communication module and a GSM-R communication module which are arranged on a slave control locomotive. The GSM-R wireless communication network server comprises a core server and a GSM-R ground grouping server.
The invention discloses a synchronous control fusion communication method for a heavy-load networked electric locomotive, which mainly comprises the steps of fusing and marshalling a data transmission radio communication module of a train and a GSM-R communication module of the train; and when the GSM-R communication is recovered, the data transmission radio station is switched to the GSM-R communication, and the data transmission radio station is switched to the power-on hot standby.
As shown in fig. 2, the method for synchronously operating and converging communication of a heavy-load networked electric locomotive provided by the present invention includes:
s300, the synchronous operation control equipment of the master control locomotive latches pre-recorded marshalling information and sends the marshalling information to a GSM-R ground marshalling server, wherein the marshalling information comprises master control locomotive information and slave control locomotive information in the same marshalling;
s400, a GSM-R communication module of a master control locomotive receives an operation control data frame sent by synchronous operation control equipment of the master control locomotive according to a time period of preset duration, and the GSM-R communication module of the master control locomotive sends the operation control data frame to a GSM-R communication module of a slave control locomotive;
s500, receiving the operation control data frame from a GSM-R communication module of the slave control machine vehicle, sending the operation control data frame to synchronous operation control equipment of the slave control machine vehicle, receiving the operation control data frame by the slave control machine vehicle, and sending a state reply data frame to the GSM-R communication module of the slave control machine vehicle;
s600, the synchronous operation control device of the master control locomotive and the synchronous operation control device of the slave control locomotive continuously judge whether the GSM-R communication module has a fault, when the GSM-R communication module has the fault, the data transmission radio communication module is used for communication, and when the GSM-R communication module is recovered, the GSM-R communication module is used for communication.
The invention provides a synchronous control fusion communication method for a heavy-load networked electric locomotive, which is characterized in that data transmission radio communication modules of a master control train and a slave control train are marshalled through synchronous operation control equipment of the master control locomotive, marshalling information is sent to a GSM-R ground marshalling server, and the marshalling of the GSM-R communication modules of the master control locomotive and the slave control train is realized. When the train runs, the synchronous operation control equipment of the master control locomotive and the synchronous operation control equipment of the slave control locomotive transmit data frames through the GSM-R communication module, and the data transmission radio station is started up and is hot-standby. Meanwhile, the synchronous operation control equipment of the master control locomotive and the synchronous operation control equipment of the slave control locomotive continuously monitor the state of the GSM-R communication, when the GSM-R communication is abnormal, the data transmission radio station is switched to communicate, when the GSM-R communication is recovered, the data transmission radio station is switched to the GSM-R communication, and the data transmission radio station is started up for hot standby. Therefore, the stability of long-distance communication is realized, the efficiency of synchronous operation control is improved, and the running efficiency of the heavy-load networked electric locomotive is greatly improved.
Before step S300, the method further includes that the synchronous operation control device of the master locomotive is to belong to a locomotive consist of the same train, and specifically includes:
s100, sending obtained pre-recorded marshalling information of the slave control locomotive from synchronous operation control equipment of the slave control locomotive to a data transmission radio communication module of the slave control locomotive, sending the received pre-recorded marshalling information of the slave control locomotive from the data transmission radio communication module of the slave control locomotive to a data transmission radio communication module of a master control locomotive, and simultaneously sending a registration request from a GSM-R communication module of the slave control locomotive to a GSM-R core network server;
s200, synchronous operation control equipment of the master control locomotive acquires pre-recorded marshalling information of the master control locomotive, and a GSM-R communication module of the master control locomotive sends a registration request to a GSM-R core network server; meanwhile, the synchronous operation control equipment of the master control locomotive receives pre-recorded marshalling information of the slave control locomotive, which is sent by a data transmission radio station of the master control locomotive, compares whether the pre-recorded marshalling information of the slave control locomotive is consistent with the pre-recorded marshalling information of the master control locomotive, and confirms that the marshalling is connected with the slave control locomotive when the pre-recorded marshalling information of the slave control locomotive is consistent with the pre-recorded marshalling information of the master control locomotive.
In step S100, before the data transfer radio communication module of the slave control locomotive starts to work, the synchronous operation control device of the slave control locomotive performs parameter setting on the information of the slave control locomotive and the information of the master control locomotive to be connected, that is, the marshalling information of the slave control locomotive is pre-entered into the synchronous operation control device of the slave control locomotive, so that the synchronous operation control device of the slave control locomotive obtains the pre-entered marshalling information of the slave control locomotive. After the setting is finished, outputting a marshalling command from the synchronous operation control equipment of the control locomotive, and sending a request for waiting marshalling connection to the data transmission radio station communication module of the slave control locomotive.
It should be noted that the number of slave control vehicles is usually set to be plural. When the marshalling information of the slave control vehicles is pre-recorded, the marshalling information of the slave control vehicles is pre-recorded one by one according to the sequence. For example, the slave vehicle 1 and the slave vehicle 2 are used. . . And the marshalling information of the slave control vehicles is pre-recorded in the sequence of the slave control vehicles N. The marshalling information of each slave control locomotive is different and respectively comprises the information of the slave control locomotive and the information of the master control locomotive. That is, the configuration information pre-entered from the control locomotive 1 includes only the information of the control locomotive 1 and the information of the master locomotive, and the configuration information pre-entered from the control locomotive N includes only the information of the control locomotive N and the information of the master locomotive.
Correspondingly, after the pre-entry information is finished, the data transmission radio station communication module of the control locomotive sends pre-entry marshalling information of the control locomotive to the data transmission radio station communication module of the main control locomotive, namely sends a waiting connection request to the main control locomotive, and simultaneously, the GSM-R communication module of the control locomotive starts to send a registration request to the GSM-R core network server. In the whole step S100, the marshalling information of the slave vehicle, the slave vehicle sending a connection waiting request through the station communication module, and the slave vehicle starting to register to the GSM-R communication network may be pre-entered in the order shown in fig. 3. That is, step S100 includes that the slave locomotives register with the GSM-R communication network by sending a connection waiting request from the slave locomotive 1 through the station communication module according to the formation information pre-recorded in the slave locomotive 1, respectively. . . When the slave locomotive N pre-records the marshalling information, the slave locomotive N sends a connection waiting request through the radio station communication module, the slave locomotive N starts to register to the GSM-R communication network, all the slave locomotives finish pre-recording the marshalling information, send the connection waiting request and start to register to the GSM-R communication network. The slave control vehicle information can comprise a slave control vehicle type, a slave control vehicle number, master-slave setting, running direction, a grouping sequence number, a grouping number and the like. The master control locomotive information comprises a master control locomotive model, a master control locomotive number, master-slave setting, a running direction, a master control locomotive empty weight state and a vehicle brake system pressure maintaining value.
Preferably, in this step S100, after the formation information pre-entered from the control locomotive is acquired from the synchronous operation control device of the control locomotive, while the formation information is sent to the data radio communication module of the slave control locomotive, the method further includes step S110, where the acquired formation information pre-entered from the control locomotive is sent from the synchronous operation control device of the control locomotive to the GSM-R communication module.
And after the registration request sent from the GSM-R communication module of the slave control locomotive to the GSM-R core network server passes, namely after the GSM-R communication module of the slave control locomotive successfully registers, sending the received grouping information pre-recorded from the slave control locomotive to the GSM-R ground grouping server from the GSM-R communication module of the slave control locomotive. That is, the GSM-R ground group server may also receive group information pre-recorded from the control locomotive, which is sent from the GSM-R communication module of the control locomotive. In step S200, before the data transmission radio station communication module of the master control locomotive starts to work, pre-recording marshalling information into the synchronous operation control device of the master control locomotive, that is, pre-recording slave control locomotive information into the synchronous operation control device of the master control locomotive. It should be noted that the pre-entered consist information of the master locomotive includes information of the master locomotive itself and information of all slave locomotives. The master control locomotive information comprises a master control locomotive model, a master control locomotive number, master-slave setting, a running direction, a master control locomotive empty weight state and a vehicle brake system pressure maintaining value. The slave control locomotive information specifically comprises a slave control locomotive type, a slave control locomotive number, master-slave setting, a running direction, a marshalling sequence number, the marshalling quantity and the like. The synchronous operation control equipment of the master control locomotive firstly sends a marshalling request data packet to a data transmission radio communication module of the master control locomotive.
Preferably, in the step S200, after the synchronous operation control device of the master locomotive obtains the pre-recorded marshalling information of the master locomotive, the synchronous operation control device of the master locomotive sends the marshalling information to the data radio communication module of the master locomotive, and at the same time, the step S210 is further included, where the synchronous operation control device of the master locomotive sends the obtained pre-recorded marshalling information of the master locomotive to the GSM-R communication module.
And after the GSM-R communication module of the master control locomotive passes the registration request sent to the GSM-R core network server, namely the GSM-R communication module of the master control locomotive is successfully registered, the GSM-R communication module of the slave control locomotive sends the received pre-recorded marshalling information of the slave control locomotive to the GSM-R ground marshalling server. That is, the GSM-R ground group server may also receive group information pre-recorded from the control locomotive, which is sent from the GSM-R communication module of the control locomotive.
Step S200 further includes that the synchronous operation control device of the master control locomotive compares whether the pre-entered grouping information of the slave control locomotive is consistent with the pre-entered grouping information of the master control locomotive within a preset time period. Specifically, the preset time period may be 60 seconds, and the pre-entered marshalling information of the master control locomotive and the slave control locomotives is confirmed within the preset time period, so that the accuracy of the marshalling connection confirmation can be improved, and the marshalling efficiency can be improved.
Through the operation of step S200, after the confirmation is completed, it is achieved that the synchronous operation control device of the master control locomotive groups the data transmission radio station communication modules of the master control locomotive and the slave control locomotives belonging to the same train, that is, having the same model, the same car number and the same running direction.
In step S300, latching means that the marshalling information is retained in the master control locomotive, and the master control locomotive is not cleared until the master control locomotive inputs a decommissioning instruction (or an abnormal release). The GSM-R network needs grouping information which is stored in a server; the radio station completes the grouping as long as the primary train is successfully compared, and the grouping information is latched in the primary train. And the synchronous operation control of the master control locomotive sends the latched marshalling information to a GSM-R communication module of the master control locomotive, and sends the marshalling information to a GSM-R ground marshalling server through the GSM-R communication module. The configuration information stored in the master locomotive can be stored in the GSM-R ground configuration server through the step S300, and is not cleared until the host vehicle inputs the decommissioning command (or the abnormality release). The GSM-R ground marshalling server is configured to receive latched marshalling information sent by the GSM-R communication module of the master locomotive, where the content of the latched marshalling information is the marshalling information that includes the master locomotive information and all slave locomotive information and is pre-recorded in the synchronous operation control device of the master locomotive in step S200. The GSM-R ground grouping server is also used for sending the received grouping information to the core network server.
The core network server is used for receiving the registration information sent by the GSM-R communication module of the main control locomotive and the registration information sent by the GSM-R communication module of the slave control locomotive, and receiving the marshalling information sent by the GSM-R ground marshalling server. And comparing the information of the model, the number, the running direction and the like of the master control locomotive and the slave control locomotive in the registration information with the information of the model, the number, the running direction and the like of the master control locomotive and the slave control locomotive stored in the master control locomotive and the slave control locomotive respectively, and when the comparison result is consistent, enabling the slave control locomotive to be successfully registered through the registration request of the slave control locomotive. And after the registration is successful, establishing logical connection between the master control locomotive and the slave control locomotive in the marshalling information sent by the GSM-R ground marshalling server, thereby realizing the establishment and connection of the marshalling session between the GSM-R communication module of the master control locomotive and the GSM-R communication module of the slave control locomotive.
It should be noted that, in the step S200, a step S220 is further included, when the synchronous operation control device of the master control locomotive compares that the pre-recorded formation information of the slave control locomotive is inconsistent with the pre-recorded formation information of the master control locomotive within a preset time period, or when all the pre-recorded formation information of the slave control locomotive sent by the slave control locomotive is not received within the preset time period; in step S300, the synchronous operation control device of the master locomotive still transmits pre-entered consist information of the master locomotive to the GSM-R ground consist server.
Correspondingly, after receiving the pre-recorded marshalling information of the master control locomotive, the GSM-R ground marshalling server compares the pre-recorded marshalling information of the slave control locomotive with the pre-recorded marshalling information of the master control locomotive, and when the comparison result is consistent, the pre-recorded marshalling information of the master control locomotive is stored and is sent to the GSM-R core network server. And establishing and connecting a group session between the GSM-R communication module of the master control locomotive and the GSM-R communication module of the slave control locomotive through a GSM-R core network server. That is, in this case, only the consist of the GSM-R communication module is implemented and the locomotives will communicate through the GSM-R communication module. When the comparison is inconsistent, the receiving is terminated and an error is reported, and the subsequent operation is waited.
In step S400, the operation control data frame is sent according to the time period of the preset duration, which can improve the safety of the synchronous operation control. The preset time period can be set according to specific requirements, for example, set to 40-60 ms.
Step S500 further includes receiving the status reply data frame from the GSM-R communication module of the master locomotive, and sending the status reply data frame to the synchronous operation control device of the master locomotive by the GSM-R communication module of the master locomotive.
In step S600, the step of continuously determining whether the GSM-R communication module has a fault by the synchronous operation control device of the master locomotive includes: when the synchronous operation control equipment of the master control locomotive continuously receives no state reply data frame sent by the GSM-R communication module of the master control locomotive within a preset number of preset time periods, or only receives a reply exceeding the preset time period within the preset number of continuous preset time periods, the GSM-R communication fault is judged. And when the synchronous operation control equipment of the master control locomotive receives the state reply data frames sent by the GSM-R communication module of the master control locomotive within a preset number of preset time periods, judging that the GSM-R communication is recovered to be normal.
Specifically, when the synchronous operation control device of the master control locomotive judges that the GSM-R communication fails, the data transmission radio station starting information is sent to a data transmission radio station communication module of the master control locomotive, and the data transmission radio station communication module of the master control locomotive sends the received data transmission radio station starting information to a data transmission radio station communication module of a slave control locomotive; and when the synchronous operation control equipment of the master control locomotive judges that the GSM-R communication is recovered to be normal, sending GSM-R starting information to the GSM-R communication module of the master control locomotive, and sending the received GSM-R starting information to the GSM-R communication module of the slave control locomotive by the GSM-R communication module of the master control locomotive.
In step S600, continuously determining whether the GSM-R communication module has a fault by the synchronous operation control device of the slave control machine includes: and when the synchronous operation control equipment of a certain slave control machine vehicle does not receive the operation control data frame sent by the GSM-R communication module of the slave control machine vehicle within a preset number of preset time periods, judging that the GSM-R communication fault exists. And when the synchronous operation control equipment of the slave control machine vehicle receives the operation control data frames sent by the GSM-R communication module of the slave control machine vehicle within a preset number of preset time periods, judging that the GSM-R communication is recovered.
When the GSM-R communication fault is judged by the synchronous operation control equipment of a certain slave control locomotive, the data transmission radio station starting information is sent to the data transmission radio station communication module of the slave control locomotive, and the data transmission radio station communication module of the slave control locomotive sends the received data transmission radio station starting information to the data transmission radio station communication module of the master control locomotive and the data transmission radio station communication modules of other slave control locomotives.
As shown in fig. 5, for the GSM-R connection loss judgment process, it can be understood that in the grouping operation process, the master vehicle will send operation control data frames to all slave vehicles according to a certain period; when the slave vehicle receives the control data frame sent by the master vehicle, the slave vehicle immediately executes the command and replies the state data frame. The master vehicle is judged to be in GSM-R connection loss when the master vehicle continuously receives no reply from a slave vehicle or receives only the reply of an outdated period within a preset number of periods. For the slave vehicle, when the GSM-R communication module does not update the effective master vehicle control frame for a preset number of continuous periods, the GSM-R connection loss of the vehicle can be judged.
Preferably, when a synchronous operation control device of a certain slave control locomotive judges that the GSM-R communication fault exists, the synchronous operation control device of the slave control locomotive starts the traction safety guiding operation of the slave control locomotive, and when the slave control locomotive succeeds in switching the radio communication mode and receives the master locomotive command again, the traction control protection mode is released, and the command of the master control locomotive is responded again. Wherein the traction safety guiding operation involves train control of a synchronous handling system. By adopting a series of traction control protection actions when the slave control locomotive detects that the GSM-R connection is lost, the communication fault of safety accidents caused by the conflict of the master control locomotive command and the slave control locomotive command can be prevented, for example, the phenomenon that the master control locomotive command and the slave control locomotive command are not synchronous and the coupler is extruded or pulled is avoided.
And when the synchronous operation control equipment of the slave control locomotive judges that the GSM-R communication is recovered to be normal, sending GSM-R communication enabling information to the GSM-R communication module of the slave control locomotive, and sending the received GSM-R enabling information to the GSM-R communication module of the master control locomotive and the GSM-R communication modules of other slave control locomotives by the GSM-R communication module of the slave control locomotive.
The preset number of preset time periods is 2-4 time periods with preset time lengths. Preferably 2 time periods of preset duration. The length of the preset number of preset duration periods can be 90-110 ms, so that the accuracy of communication fault judgment is improved, and the safety of synchronous operation control is further improved.
The synchronous control fusion communication method for the heavy-load networked electric locomotive can realize the introduction of GSM-R communication into the synchronous control system and improve the connection capability of the synchronous control system of the networked electric locomotive. By introducing GSM-R communication, after the GSM-R network along the heavy-duty railway is erected, a GSM-R base station communication mode based on a cellular network can be realized, networked electric locomotives at any positions can be registered in a network through the base station, namely, the master control locomotive and the slave control locomotive can be connected in real time no matter how far apart, and therefore the connection capability of the networked electric locomotives and the synchronous operation system can be greatly improved.
By the synchronous control fusion communication method for the heavy-load networked electric locomotive, the locomotive can be quickly marshalled by combining the radio direct transmission and the GSM-R communication in the marshalling process of the synchronous control multi-locomotive, and the marshalling process of a train can be accelerated. And the communication inspection of the GSM-R and the radio station two-way communication is completed while the grouping is completed, so that the real-time performance and the usability of the grouping of the reconnection system are enhanced.
According to the synchronous control fusion communication method for the heavy-load networked electric locomotive, provided by the invention, in the operation process of the synchronous control multi-locomotive, the synchronous operation control equipment monitors the two-way communication state of the GSM-R and the radio station in real time, and reasonably applies the radio station communication as supplementary connection (including fusion marshalling and switching) while applying the GSM-R, so that two mutually redundant synchronous control communication links are provided, and compared with the single use of any communication mode, the synchronous control communication link is more stable and reliable, thereby greatly reducing the communication interruption probability, and the traction safety guiding operation guarantee connection is started from the control locomotive in the intelligent switching and switching process.
Example 1
As shown in fig. 3, a train formation fusion communication process is performed:
(1) the slave control locomotive sets marshalling information and waits for connection: after the slave control locomotive finishes parameter setting, a marshalling command is output, and the slave locomotive enters a wireless marshalling waiting state and sends waiting connection information through a radio station. At this point the slave vehicle will initiate a GSM-R connection and start registering with the GSM-R network. And simultaneously, the slave control locomotive sends pre-recorded marshalling information to the master control locomotive through the radio station.
(2) The master control locomotive sets marshalling information and is connected with slave control: and after all the slave control locomotives enter a marshalling waiting state, performing wireless marshalling operation on the master control locomotive. The method comprises the steps of pre-inputting marshalling information including a vehicle and all slave control vehicles in a master control vehicle, and receiving the pre-input marshalling information of the slave control vehicles sent by the slave control vehicles through a radio station of the master control vehicle. At the same time the host vehicle will start a GSM-R connection and start registering with the GSM-R network.
(3) The master control vehicle and the slave control vehicle confirm connection: the master control locomotive compares the received pre-recorded marshalling information of the slave control locomotive with the pre-recorded marshalling information of the master control locomotive stored in the master control locomotive within 60 seconds, completes connection after the comparison is consistent, and latches the pre-recorded marshalling information.
(4) The master control locomotive packs and forwards the latched marshalling information to the GSM-R network after the GSM-R network is successfully registered, and if all the slave locomotives are successfully registered, the establishment and the link of the GSM-R marshalling session can be directly completed.
(5) The successful grouping and the successful registration also finish the communication check of two-way communication of the GSM-R and the radio station, the synchronous control system is switched to the GSM-R network and starts to work normally, and the radio station link enters a redundancy working mode.
As shown in fig. 4, a redundant fusion communication process for train operation:
in the running process of the train, the synchronous control train defaults to use a GSM-R link for communication, and meanwhile, the radio station is in a starting hot standby state and still stores marshalling information. When a GSM-R link has a problem, the GSM-R link is divided into two emergency switching modes due to different functions of a master vehicle and a slave vehicle:
(1) loss of GSM-R connection from car and timeout: when a certain slave vehicle cannot receive the control command of the master vehicle through the GSM-R network in the running process of the train and exceeds the set time, the slave vehicle synchronous control system starts the slave vehicle traction safety guiding operation. The slave car synchronization control system will now send the connection enabling information using the radio station. And after the adjacent slave vehicle or the master vehicle receives the starting information of the radio station, the system is switched to the communication mode of the radio station, and after the switching is finished, the communication fault slave vehicle traction mode is recovered to be normal. Meanwhile, the vehicle continuously detects the communication state of the GSM-R network, and once the communication state is recovered and kept stable, a request for switching the GSM-R network is sent out.
(2) The master loses the GSM-R connection and times out: when the master car can not receive the slave car state data through the GSM-R network in the running process of the train and the set time is exceeded, the radio station starting information and the running control information are immediately sent to all the slave cars, and the communication link is rapidly switched to the radio station communication. Meanwhile, the main vehicle continuously detects the communication state of the GSM-R network and switches back to the GSM-R network once the communication state is recovered and kept stable.
The foregoing description has been directed to specific embodiments of this disclosure. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing may also be possible or may be advantageous.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the idea of the invention, also features in the above embodiments or in different embodiments may be combined, steps may be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity.
In addition, well known power/ground connections to Integrated Circuit (IC) chips and other components may or may not be shown within the provided figures for simplicity of illustration and discussion, and so as not to obscure the invention. Furthermore, devices may be shown in block diagram form in order to avoid obscuring the invention, and also in view of the fact that specifics with respect to implementation of such block diagram devices are highly dependent upon the platform within which the present invention is to be implemented (i.e., specifics should be well within purview of one skilled in the art). Where specific details (e.g., circuits) are set forth in order to describe example embodiments of the invention, it should be apparent to one skilled in the art that the invention can be practiced without, or with variation of, these specific details. Accordingly, the description is to be regarded as illustrative instead of restrictive.
While the present invention has been described in conjunction with specific embodiments thereof, many alternatives, modifications, and variations of these embodiments will be apparent to those of ordinary skill in the art in light of the foregoing description. For example, other memory architectures (e.g., dynamic ram (dram)) may use the discussed embodiments.
The embodiments of the invention are intended to embrace all such alternatives, modifications and variances that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, substitutions, improvements and the like that may be made without departing from the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (10)
1. A synchronous operation and control fusion communication method for a heavy-load networked electric locomotive is characterized by comprising the following steps:
s300, the synchronous operation control equipment of the master control locomotive latches pre-recorded marshalling information of the master control locomotive and sends the marshalling information to a GSM-R ground marshalling server, wherein the marshalling information comprises master control locomotive information and slave control locomotive information in the same marshalling;
s400, a GSM-R communication module of a master control locomotive receives an operation control data frame sent by synchronous operation control equipment of the master control locomotive according to a time period of preset duration, and the GSM-R communication module of the master control locomotive sends the operation control data frame to a GSM-R communication module of a slave control locomotive;
s500, receiving the operation control data frame from a GSM-R communication module of the slave control machine vehicle, sending the operation control data frame to synchronous operation control equipment of the slave control machine vehicle, receiving the operation control data frame by the slave control machine vehicle, and sending a state reply data frame to the GSM-R communication module of the slave control machine vehicle;
s600, the synchronous operation control device of the master control locomotive and the synchronous operation control device of the slave control locomotive continuously judge whether the GSM-R communication module has a fault, when the GSM-R communication module has the fault, the data transmission radio communication module is used for communication, and when the GSM-R communication module is recovered, the GSM-R communication module is used for communication.
2. The method for the synchronous operation and convergence communication of the heavily loaded networked electric locomotive according to claim 1, wherein step S300 is preceded by the step of,
sending obtained pre-recorded marshalling information of the slave control locomotive from synchronous operation control equipment of the slave control locomotive to a data transmission radio communication module of the slave control locomotive, sending the received pre-recorded marshalling information of the slave control locomotive from the data transmission radio communication module of the slave control locomotive to a data transmission radio communication module of a master control locomotive, and simultaneously sending a registration request from a GSM-R communication module of the slave control locomotive to a GSM-R core network server;
the method comprises the steps that synchronous operation control equipment of a master control locomotive obtains pre-recorded marshalling information of the master control locomotive, and a GSM-R communication module of the master control locomotive sends a registration request to a GSM-R core network server; meanwhile, the synchronous operation control equipment of the master control locomotive receives pre-recorded marshalling information of the slave control locomotive, which is sent by a data transmission radio station of the master control locomotive, compares whether the pre-recorded marshalling information of the slave control locomotive is consistent with the pre-recorded marshalling information of the master control locomotive, and confirms that the marshalling is connected with the slave control locomotive when the pre-recorded marshalling information of the slave control locomotive is consistent with the pre-recorded marshalling information of the master control locomotive.
3. The method for the synchronous operation and the convergence of communication of the heavy-duty networked electric locomotive according to claim 2, wherein the step S600 comprises:
the synchronous operation control equipment of the master control locomotive continuously judges whether the GSM-R communication is in fault, and when the GSM-R communication is judged to be in fault, the data transmission radio station communication module of the master control locomotive sends data transmission radio station starting information to the data transmission radio station communication module of the slave control locomotive;
and when the synchronous operation control equipment of the master control locomotive judges that the GSM-R communication is recovered to be normal, sending GSM-R starting information to the GSM-R communication module of the master control locomotive, and sending the received GSM-R starting information to the GSM-R communication module of the slave control locomotive by the GSM-R communication module of the master control locomotive.
4. The synchronous operation and fusion communication method for the heavy-duty networked electric locomotive according to claim 3, wherein the step of determining that the GSM-R communication fault occurs comprises the step of determining that the GSM-R communication fault occurs when the synchronous operation control device of the master locomotive does not receive the state reply data frame sent by the GSM-R communication module of the master locomotive within a preset number of preset duration periods;
the judging that the GSM-R communication is recovered to be normal comprises the step of judging that the GSM-R communication is recovered to be normal when the synchronous operation control equipment of the master control locomotive receives the state reply data frames sent by the GSM-R communication module of the master control locomotive within a preset number of preset time periods.
5. The method for the synchronous operation and the convergence of communication of the heavy-duty networked electric locomotive according to claim 2, wherein the step S600 comprises:
the method comprises the steps that whether GSM-R communication is in fault or not is continuously judged by synchronous operation control equipment of a slave control machine vehicle, when the synchronous operation control equipment of a certain slave control machine vehicle judges that the GSM-R communication is in fault, data transmission radio station starting information is sent to a data transmission radio station communication module of the slave control machine vehicle, and the data transmission radio station communication module of the slave control machine vehicle sends the received data transmission radio station starting information to the data transmission radio station communication module of a master control locomotive and data transmission radio station communication modules of other slave control machine vehicles;
and when the synchronous operation control equipment of the slave control locomotive judges that the GSM-R communication is recovered to be normal, sending GSM-R communication enabling information to the GSM-R communication module of the slave control locomotive, and sending the received GSM-R enabling information to the GSM-R communication module of the master control locomotive and the GSM-R communication modules of other slave control locomotives by the GSM-R communication module of the slave control locomotive.
6. The heavy-duty networked electric locomotive synchronous handling converged communication method according to claim 5,
the step of judging that the GSM-R communication fault exists comprises the step of judging that the GSM-R communication fault exists when the synchronous operation control equipment of a certain slave control machine vehicle does not receive the operation control data frame sent by the GSM-R communication module of the slave control machine vehicle within a preset number of preset time periods;
judging that the GSM-R communication is recovered to be normal comprises judging that the GSM-R communication is recovered when the synchronous operation control equipment of the slave control locomotive receives operation control data frames sent by the GSM-R communication module of the slave control locomotive within a preset number of preset time periods.
7. The method for the synchronous operation and the convergence of communication of the heavy-duty networked electric locomotive according to claim 2, wherein the master locomotive compares whether the pre-recorded marshalling information of the slave locomotive is consistent with the pre-recorded marshalling information of the master locomotive within a preset time period.
8. The method for the synchronous operation and the converged communication of the heavy-duty networked electric locomotive according to claim 4 or 6, wherein the preset number of preset duration periods is 2-4 preset duration periods.
9. The synchronous operation and fusion communication method for the heavy-duty networked electric locomotive according to claim 1, wherein the master locomotive information comprises a master locomotive model, a master locomotive number, master-slave settings, a running direction, a master locomotive empty-weight state and a locomotive brake system pressure maintaining value.
10. The synchronous operation and fusion communication method for the heavy-load networked electric locomotive according to claim 1, wherein the slave control locomotive information comprises a slave control locomotive type, a slave control locomotive number, master-slave setting, a running direction, a marshalling sequence number and a marshalling number.
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Application publication date: 20211207 |