CN113807687A - Dispatching centralized simulation system, interface equipment and radio block control simulation system - Google Patents
Dispatching centralized simulation system, interface equipment and radio block control simulation system Download PDFInfo
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Abstract
The invention provides a dispatching centralized simulation system, interface equipment and a wireless block control simulation system, wherein the simulation dispatching system comprises: the system comprises a network interface module, a positioning tracking module, an access control module, an information query module, a blocked point processing module and a temporary speed limit issuing module, wherein the positioning tracking module, the access control module, the information query module, the blocked point processing module and the temporary speed limit issuing module are respectively in communication connection with the network interface module; the network interface module is used for acquiring train information from the radio block center and transmitting a control instruction of the dispatching centralized simulation system; the positioning and tracking module is used for tracking the train and determining the real-time position information of the train; the route control module is used for performing control operation on the train route to acquire a train route control instruction; the information query module is used for querying and displaying relevant detailed information of the corresponding train; the blocking point processing module is used for setting a new blocking point in the train line or removing an existing blocking point which is already set in the train line; the temporary speed limit issuing module is used for generating a temporary speed limit control instruction. The invention realizes real-time tracking operation of the train.
Description
Technical Field
The invention relates to the technical field of rail transit, in particular to a dispatching centralized simulation system, interface equipment and a wireless block control simulation system.
Background
The Radio Block Center (RBC) is a signal control system based on a fault-safety computer platform, and is used for generating Movement Authorization (MA) information for a controlled train, and transmitting the MA information to a vehicle-mounted subsystem through a wireless communication system, so as to ensure the operation safety of the train in the jurisdiction range.
The dispatching centralization is technical equipment for the railway dispatching center to perform centralized control on railway signal equipment in a certain section and directly command and manage train operation. The Centralized dispatching System (CTC) is widely applied to the railway train operation Control, and the Centralized dispatching System is an important part of the Centralized dispatching System, and is used for dispatching and commanding the train operation, thereby realizing the functions of editing and issuing a train operation plan, managing dispatching commands, managing shunting operation, collecting and monitoring station information and the like.
At present, when data testing is carried out between an infinite block center and a dispatching set, real data of a train can be obtained only by measuring through a real equipment system. Therefore, such a test environment brings great inconvenience.
Disclosure of Invention
The invention provides a dispatching centralized simulation system, interface equipment and a wireless block control simulation system, which are used for solving the defect of poor convenience caused by the fact that operation tests need to be carried out according to actual data in the prior art and achieving the purpose of real-time tracking operation of a train.
In a first aspect, the present invention provides a centralized scheduling simulation system, including: a dispatch centralization simulation system, comprising: the system comprises a network interface module, a positioning tracking module, an access control module, an information query module, a blocked point processing module and a temporary speed limit issuing module, wherein the positioning tracking module, the access control module, the information query module, the blocked point processing module and the temporary speed limit issuing module are respectively in communication connection with the network interface module;
the network interface module is connected with a radio block center and used for acquiring train information from the radio block center and transmitting a control instruction of the dispatching centralized simulation system;
the positioning and tracking module is used for tracking the train and determining the real-time position information of the train based on the train information;
the route control module is used for performing control operation on the route of the train by taking a wireless block logic section as a unit based on the train information to acquire a train route control instruction;
the information inquiry module is used for inquiring and displaying relevant detailed information of a corresponding train according to the train information;
the blocking point processing module is used for setting a new blocking point in the train line or releasing an existing blocking point which is already set in the train line based on the train information;
and the temporary speed limit issuing module is used for generating a temporary speed limit control instruction based on the train information.
In a second aspect, the present invention also provides an interface device for use between a radio block center and a dispatch set simulation system as described above, the interface device comprising: an infinite block center interface unit and a dispatching centralized interface unit;
the infinite block center interface unit is used for receiving the train information from an infinite block center and sending the train information to the dispatching concentration interface unit according to an interface communication hierarchical structure;
the dispatching centralized interface unit is used for receiving train information from the infinite blocking center interface unit and sending the train information to a dispatching centralized simulation system;
and the infinite block center and the dispatching centralized simulation system are respectively accessed to the safety data network through a switch.
According to the present invention, there is provided an interface device, further comprising a physical interface and an electrical interface;
the physical interfaces are standard RJ45 terminals and twisted pairs, and two ends of the RJ45 terminals and the twisted pairs are respectively connected with the infinite block center interface unit and the dispatch centralized interface unit;
the electrical interface is an Ethernet, and the parameters of the Ethernet are set as follows: the communication standard is IEEE802.3, the physical connection is Ethernet 10 or 100BaseT, the transmission mode is Full-duplex, the coding sequence is Big endian, the bandwidth is 100Mbits/s, and the coding mode is Manchester.
According to the interface device provided by the invention, the communication hierarchical structure of the interface device specifically comprises a data link layer, a network layer, a transmission layer, a secure communication protocol layer and an application layer;
the medium access control sublayer of the data link layer is based on the IEEE802.3 communication standard;
the network layer adopts an IPv4 protocol as a communication protocol;
the transmission layer adopts a UDP protocol as a transmission protocol of the information transmitted in real time;
the safety communication protocol layer is used for determining the safety communication protocols respectively adopted by the infinite blocking center interface unit and the dispatching concentration interface unit;
in the application layer, the transmission information uses a self-defined application layer protocol.
The interface equipment provided by the invention further comprises a data storage unit;
the data storage unit is used for storing the train information in a Big Endian mode, and the low address stores the most significant byte;
and the communication checking mode of the train information adopts a cyclic redundancy code checking mode.
According to an interface device provided by the present invention, the train information includes at least one of: the train movement authorization information comprises communication train position information, communication train number, signal machine state, logic zone state, train movement authorization information and access state information.
In a third aspect, the present invention further provides a radio block control simulation system, including: a radio block center subsystem, a dispatch centering simulation system as described above and an interface device as described above;
and the wireless blocking center subsystem and the dispatching centralized simulation system are respectively accessed to the safety data network through a switch, and communicate according to the fixed IP and the port number specified by the IP configuration table.
According to the radio block control simulation system provided by the invention, the radio block center subsystem sends train information to the dispatching centralized simulation system through the safety data network according to a set period.
According to the radio block control simulation system provided by the invention, in each set period, the infinite block center subsystem generates a general message packet based on the train information before sending the train information, and transmits the train information through the general message packet.
According to the radio block control simulation system provided by the invention, the dispatching centralized simulation system records the time for receiving the train information, and if the dispatching centralized simulation system determines that the data information from the infinite block center is not received within the continuous preset time period based on the record, the dispatching centralized simulation system confirms that the communication with the infinite block center is interrupted.
The dispatching centralized simulation system, the interface equipment and the wireless block control simulation system provided by the invention have the advantages that the train information is accurately processed through each module by arranging the positioning tracking module, the access control module, the information query module, the blocking point processing module and the temporary speed limit issuing module, the information transmission is more accurate by arranging the network interface equipment, and the communication mode is further optimized by establishing the wireless block control simulation system, so that the accurate control of the train is realized.
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In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a dispatch centralization simulation system provided by the present invention;
FIG. 2 is a schematic structural diagram of an interface device provided by the present invention;
fig. 3 is a schematic structural diagram of a radio block control simulation system provided by the present invention;
fig. 4 is a schematic diagram of a general packet structure of the radio block control emulation system provided in the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention adopts a dispatching centralized simulation system, interface equipment and a wireless block control simulation system, mainly aims to apply the dispatching centralized simulation system to a train control system, and is connected with RBC through a network interface, so that the functions of accurately tracking train number, controlling train route by taking a logic section as a unit, inquiring detailed information of the train, issuing temporary speed limit, setting/releasing line block points and the like can be realized, and the CTC can display and record related information transmitted by train control system vehicle-mounted equipment through RBC-CTC interface content. The indoor real-time tracking device can fully simulate the field conditions indoors, provide real-time and accurate train position information for train operation control, ensure the safe tracking operation of the train under real equipment, and finally realize the real-time tracking operation of the train.
The dispatch centralization simulation system, interface device and radio block control simulation system of the present invention are described below in conjunction with fig. 1-4.
Fig. 1 is a schematic structural diagram of a dispatch centralized simulation system provided in the present invention, and as shown in fig. 1, the system includes:
the system comprises a network interface module 11, a positioning tracking module 12, an access control module 13, an information query module 14, a blocked point processing module 15 and a temporary speed limit issuing module 16 which are respectively in communication connection with the network interface module 11;
the network interface module 11 is connected with a radio block center, and is used for acquiring train information from the radio block center and transmitting a control instruction of the dispatch centralized simulation system;
the positioning and tracking module 12 is configured to track a train and determine real-time position information of the train based on the train information;
the route control module 13 is configured to perform control operation on a train route by taking a radio block logical zone as a unit based on the train information, and acquire a train route control instruction;
the information query module 14 is configured to query and display relevant detailed information of a corresponding train according to the train information;
the locking point processing module 15 is configured to set a new locking point in the train line or release an existing locking point that has been set in the train line based on the train information;
and the temporary speed limit issuing module 16 is used for generating a temporary speed limit control instruction based on the train information.
Specifically, the train control system generates train information according to the state of the train and related road condition information, and sends the train information to the radio block center, and the radio block center is further connected with the centralized dispatching simulation system through the network interface module 11, and transmits the generated train information for the controlled train to the centralized dispatching simulation system through the network interface module 11.
In the dispatching centralized simulation system, the dispatching centralized simulation system is divided into a positioning tracking module 12, an access control module 13, an information query module 14, a blocking point processing module 15 and a temporary speed limit issuing module 16 on a code level, and after train information is received, the modules have a mutual cooperation analysis and calculation relationship, so that corresponding functions are realized respectively.
The network interface module 11 is used to provide the function of inter-device system connection. The network interface module 11 is connected with the radio block center through a safety data network, can acquire train information from the radio block center, dispatches a centralized simulation system and respectively transmits the information to the positioning and tracking module 12, the access control module 13, the information query module 14, the blocking point processing module 15 and the temporary speed limit issuing module 16.
After the positioning and tracking module 12 acquires the train information, the dispatching centralized simulation system analyzes the train information, tracks the train according to the analysis result and determines the real-time position information of the train, so that the train with the designated train number can be accurately tracked conveniently, and the position of the train can be known.
After the route control module 13 acquires the train information, after the centralized scheduling simulation system receives the train information, the centralized scheduling simulation system analyzes the train information, performs control operation on the train route by taking the wireless blocking logical zone as a unit, acquires a train route control command, and returns the route control command to the wireless blocking center through the network interface module 11.
After the information query module 14 obtains the train information, the dispatch centralized simulation system analyzes the train information, and sends out a train information query instruction according to an analysis result, and queries and displays relevant detailed information of a corresponding train.
After the block point processing module 15 acquires the train information, the dispatching centralized simulation system analyzes the train information, and sets a new block point in the train line or releases an existing block point already set in the train line according to an analysis result, so as to cope with the line change situation caused by various situations of the track in the process of train moving, and accurately select a new moving route according to an emergency situation.
After the temporary speed limit issuing module 16 obtains the train information, the dispatching centralized simulation system analyzes the train information, and generates a temporary speed limit control instruction according to an analysis result to control the running speed of the train.
In the present invention, the route refers to a route on which a train, a shunting locomotive or a train runs from one location to another location in a station. The route comprises a train route and a shunting route, wherein the train route comprises a receiving route, an departure route and a passing route.
The logic section is a concept specific to a zone controller, equipment for detecting the position occupation of the train is a track circuit besides a common axle counting, and the equipment has the common characteristic that the equipment belongs to physical equipment for monitoring and occupying the position information of the train, and the logic section occupied by the train is obtained by combining the train position information obtained from the train through the occupied and idle states of the physical section. A physical section can contain a plurality of logical sections, and the train running interval can be further compressed based on the logical sections, so that the train can be controlled more effectively.
The invention provides a dispatching centralized simulation system, and by arranging a positioning tracking module, a route control module, an information query module, a blocking point processing module and a temporary speed limit issuing module, train information is accurately processed through each module to generate a corresponding train control instruction, so that the field condition can be fully simulated indoors, real-time and accurate train position information is provided for train operation control, the safe tracking operation of a train under real equipment is ensured, and the real-time tracking operation of the train is finally realized.
Fig. 2 is a schematic structural diagram of an interface device provided in the present invention, and as shown in fig. 2, the interface device includes: an infinite block center interface unit and a dispatching centralized interface unit;
the infinite block center interface unit is used for receiving the train information from an infinite block center and sending the train information to the dispatching concentration interface unit according to an interface communication hierarchical structure;
the dispatching centralized interface unit is used for receiving train information from the infinite blocking center interface unit and sending the train information to a dispatching centralized simulation system;
and the infinite block center and the dispatching centralized simulation system are respectively accessed to the safety data network through a switch.
Specifically, the interface device for use between the radio block center and the dispatch centralized simulation system according to the embodiments of the present invention is mainly composed of an interface unit of the radio block center and an interface unit of the dispatch centralized simulation system.
The interface unit of the wireless block center is in communication connection with the wireless block center and the interface unit of the dispatching concentration respectively, receives train information from the wireless block center, enters the safety data network through the switch after the train information is obtained, converts the format of the train information, and sends the train information to the interface unit of the dispatching concentration in the safety data network according to the interface communication hierarchical structure. Wherein the communication hierarchy can be, but is not limited to, 7 communication hierarchies for computer network communication, i.e., a physical layer, a data link layer, a network layer, a transport layer, a session layer, a presentation layer, and an application layer.
The dispatching centralized interface unit is in communication connection with the infinite block center interface unit and the dispatching centralized simulation system respectively, and after the train information of which the format is converted is obtained from the infinite block center interface unit, the dispatching centralized interface unit is connected with the dispatching centralized simulation system through the switch, namely the dispatching centralized simulation system enters the safety data network through the switch and transmits the train information to the dispatching centralized simulation system.
The invention provides the interface equipment used between the radio block center and the dispatching centralized simulation system, and the interface equipment is divided into the radio block center interface unit and the dispatching centralized interface unit to adapt the radio block center and the dispatching centralized simulation system, thereby realizing the information transmission function between different systems.
Further, the interface device further comprises a physical interface and an electrical interface;
the physical interfaces are standard RJ45 terminals and twisted pairs, and two ends of the RJ45 terminals and the twisted pairs are respectively connected with the infinite block center interface unit and the dispatch centralized interface unit;
the electrical interface is an Ethernet, and the parameters of the Ethernet are set as follows: the communication standard is IEEE802.3, the physical connection is Ethernet 10 or 100BaseT, the transmission mode is Full-duplex, the coding sequence is Big endian, the bandwidth is 100Mbits/s, and the coding mode is Manchester.
Specifically, network communication is used between the infinite block system and the dispatch centralized simulation system, the network communication needs to be carried out through a physical medium, and the hardware connection for the communication between the infinite block system and the dispatch centralized simulation system is physical connection by using a standard RJ45 terminal and a twisted pair.
Meanwhile, the infinite block system and the dispatch centralized simulation system are connected through the ethernet, and the main parameters are shown in table 1 below.
TABLE 1 interface device Electrical interface Attribute
Among them, RJ45 is a kind of information socket connector in wiring system, and the connector is composed of plug and socket, and the plug has 8 grooves and 8 contacts.
The invention realizes the transmission of information between different systems by adopting the physical connection mode of the RJ45 terminal and the twisted pair and arranging the corresponding electrical interface, so that the information is more stable in the transmission process.
Further, the communication hierarchy of the interface device specifically includes a data link layer, a network layer, a transport layer, a secure communication protocol layer, and an application layer;
the medium access control sublayer of the data link layer is based on the IEEE802.3 communication standard;
the network layer adopts an IPv4 protocol as a communication protocol;
the transmission layer adopts a UDP protocol as a transmission protocol of the information transmitted in real time;
the safety communication protocol layer is used for determining the safety communication protocols respectively adopted by the infinite blocking center interface unit and the dispatching concentration interface unit;
in the application layer, the transmission information uses a self-defined application layer protocol.
In the invention, a safety data network is accessed between the radio block center and the dispatching centralized simulation system through interface equipment, and communication transmission is divided into a data link layer, a network layer, a transmission layer, a safety communication protocol layer and an application layer in the communication transmission process. The data processing and transmission are convenient. The communication hierarchy of the interface device is also divided into a data link layer, a network layer, a transport layer, a secure communication protocol layer and an application layer.
The mac (medium Access control) sublayer of the data link layer is based on the IEEE802.3 standard. The MAC header consists of 14 bytes, and 1 frame check sequence (4 bytes) is added after the Ethernet frame.
In the network layer, the IPv4 protocol is used as a protocol of the network layer. IPv4 is the fourth version of internet communication protocol, and is the fourth revision in the internet protocol development process.
The information transmitted in real time in the transport layer uses UDP protocol as a transport protocol. The UDP protocol does not belong to a connection type protocol, and has the advantages of low resource consumption and high processing speed.
In the safety communication protocol layer, the radio block center side (radio block center to safety data network) safety communication protocol layer adopts RSSP-I railway signal safety communication protocol, and the dispatching centralized simulation system does not use RSSP-I protocol.
In the application layer, a self-defined application layer protocol is used in the process of transmitting information. Wherein the application layer protocol defines how information is communicated between different end systems running on the network.
The invention sets corresponding standard and protocol through specific division of network communication layers, and specifically sets communication between the infinite block system and the dispatching centralized simulation system, thereby dividing a complex network into layers which are easier to manage and reducing the complexity of information transmission.
Further, the device also comprises a data storage unit;
the data storage unit is used for storing the train information in a Big Endian mode, and the low address stores the most significant byte;
and the communication checking mode of the train information adopts a cyclic redundancy code checking mode.
Specifically, in the computer architecture, the storage mechanism for bytes, words, etc. is different, and therefore, a very important problem in the field of computer communication arises, namely, in what order information units (bits, bytes, words, double words, etc.) that are communicated between two communication parties should be transmitted. If the agreed rules are not met, both parties of the communication cannot perform correct coding/decoding, thereby causing communication failure.
The network interface equipment also comprises a data storage unit, and the train information is stored in the data storage unit in a Big Endian mode in the communication process of the radio block center and the dispatching centralized simulation system.
Meanwhile, the transmission of the train information is verified in a cyclic redundancy code verification mode, and when the cyclic redundancy code verification fails, the communication between the radio block center and the dispatching centralized simulation system is disconnected.
Big Endian refers to a storage mode that high-order bytes are arranged at the low address end of a memory, and low-order bytes are arranged at the high address end of the memory.
Cyclic redundancy check is a channel coding technique that generates a short fixed bit check code from data, such as network data packets or computer files, and is mainly used to detect or check errors that may occur after data transmission or storage. It uses the principle of division and remainder to make error detection.
The invention adopts a Big Endian storage mode, the high-order byte is arranged at the low address end of the memory, the low-order byte is arranged at the high address end of the memory, and train information is verified in a cyclic redundancy code verification mode, thereby further improving the accuracy of information transmission.
Further, the train information includes at least one of: the train movement authorization information comprises communication train position information, communication train number, signal machine state, logic zone state, train movement authorization information and access state information.
It is understood that the train information includes at least one of the communication vehicle position information, the communication vehicle number, the traffic signal state, the logical zone state, the train movement authorization information, and the route state information. The train information is train condition information fed back in the real-time running process of the train, and not necessarily all information is provided at the same time.
For example, the traffic signal state information is the train information that is the state of the traffic signal or the update state when the state of the traffic signal in front is changed during the running of the train. The train information is transmitted to a dispatching centralized simulation system through an infinite block system and a network interface module 11, and a blocking point processing module 15 and a route control module 13 in the dispatching centralized simulation system, which are related to the train information, analyze the train information, make a corresponding instruction, and control or inquire the train.
The invention carries out detailed decomposition on the train information, classifies the train information, and processes the corresponding train information through different dispatching centralized simulation system modules, thereby greatly improving the efficiency and the accuracy of the system for processing the train information.
Fig. 3 is a schematic structural diagram of a radio block control simulation system provided in the present invention, and as shown in fig. 3, the system includes: a radio block center subsystem, a dispatch centralized simulation system as described in the above embodiments, and an interface device as described in the above embodiments;
and the radio block center and the dispatching centralized simulation system are respectively accessed to a safety data network through a switch, and communicate according to a fixed IP and a port number specified by an IP configuration table.
Specifically, the wireless block center subsystem is in communication connection with the wireless block center interface unit and the train control system respectively, acquires train conditions from the train control system and generates train information, then is connected with the wireless block center interface unit, enters the safety data network through the switch, and sets a fixed IP and a fixed port number through the IP configuration table.
The dispatching centralized simulation system is in communication connection with the simulation dispatching centralized interface unit and the train control system respectively, is connected with the switch through the simulation dispatching centralized interface unit and enters a safety data network for train information transmission, and can set corresponding IP and port numbers according to the IP and the port numbers set by the infinite block center. When train information is transmitted, the centralized dispatching simulation system communicates with the infinite block center only when the IP is consistent with the port number.
The invention sets corresponding IP and port number in the infinite block center and the dispatch centralized simulation system, and communicates through the identification of the IP and the port number in the safety data network, thereby further improving the accuracy of data transmission.
Further, the radio block center subsystem sends train information to the dispatch centralized simulation system through a safety data network according to a set period.
It can be understood that, in the running process of the train, the encountered road condition and the train self condition are constantly changed, so that the train information needs to be constantly updated to cope with the constantly changing running condition.
The radio block center can continuously acquire the train condition information sent by the train control system, set a time period and continuously send the train information to the dispatching centralized simulation system through the safety data network by the radio block center subsystem. The dispatching centralized simulation system makes a corresponding control instruction by analyzing and processing the train information.
The invention continuously sends the train information by setting the time period for sending the train information, provides real-time and accurate train position information for train operation control, and can achieve the aim of tracking the train operation in real time.
Further, in each set period, before the infinity center subsystem sends the train information, a general message packet is generated based on the train information, and the train information is transmitted through the general message packet.
As shown in fig. 4, fig. 4 is a schematic diagram of a general packet structure of the radio block control simulation system provided in the present invention.
Specifically, the infinite block center subsystem can transmit the train information in a general information report mode in the process of transmitting the train information to the dispatching centralized simulation system. The method specifically includes combining a plurality of application layer packets into one general packet, and performing train information transmission by continuously sending the general packet.
The train information is divided into a plurality of information packets by passing the train information through the general information packet and transmitted to the dispatching centralized simulation system, so that the train information has better transmission performance.
Further, the centralized dispatching simulation system records the time of receiving the train information, and if the centralized dispatching simulation system determines that the data information from the infinite block center is not received within a continuous preset time period based on the record, the centralized dispatching simulation system confirms that the communication with the infinite block center is interrupted.
It can be understood that, in the radio block control simulation system, the radio block center subsystem will continuously transmit train information to the dispatch centralized simulation system, and the dispatch centralized simulation system will make corresponding control according to the train information. However, if the radio block control simulation system fails, the centralized dispatching simulation system does not make a corresponding control instruction to the train under the condition that the train information is not received, which may cause a risk in train operation.
Therefore, the radio block control simulation system needs to respond to the fault condition, the time for receiving train information is recorded in the dispatching centralized simulation system, a preset time length is set, if the dispatching centralized simulation system does not receive data information from the radio block center within the preset time length, the communication between the dispatching centralized simulation system and the radio block center subsystem is judged to have a fault, and fault warning is given.
The invention judges whether the wireless block control simulation system has a fault or not by recording the time of the dispatching centralized simulation system receiving the train information and presetting a time length and by judging whether the dispatching centralized simulation system receives any data information of the infinite block center within the preset time length, thereby further improving the accuracy of real-time monitoring of train operation.
The above-described system embodiments are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A dispatch centralization simulation system, comprising: the system comprises a network interface module, a positioning tracking module, an access control module, an information query module, a blocked point processing module and a temporary speed limit issuing module, wherein the positioning tracking module, the access control module, the information query module, the blocked point processing module and the temporary speed limit issuing module are respectively in communication connection with the network interface module;
the network interface module is connected with a radio block center and used for acquiring train information from the radio block center and transmitting a control instruction of the dispatching centralized simulation system;
the positioning and tracking module is used for tracking the train and determining the real-time position information of the train based on the train information;
the route control module is used for performing control operation on the route of the train by taking a wireless block logic section as a unit based on the train information to acquire a train route control instruction;
the information inquiry module is used for inquiring and displaying relevant detailed information of a corresponding train according to the train information;
the blocking point processing module is used for setting a new blocking point in the train line or releasing an existing blocking point which is already set in the train line based on the train information;
and the temporary speed limit issuing module is used for generating a temporary speed limit control instruction based on the train information.
2. An interface device for use between a radio block center and the dispatch set simulation system of claim 1, the interface device comprising: an infinite block center interface unit and a dispatching centralized interface unit;
the infinite block center interface unit is used for receiving the train information from an infinite block center and sending the train information to the dispatching concentration interface unit according to an interface communication hierarchical structure;
the dispatching centralized interface unit is used for receiving train information from the infinite blocking center interface unit and sending the train information to a dispatching centralized simulation system;
and the infinite block center and the dispatching centralized simulation system are respectively accessed to a safety data network through a switch.
3. The interface device of claim 2, further comprising a physical interface and an electrical interface;
the physical interfaces are standard RJ45 terminals and twisted pairs, and two ends of the RJ45 terminals and the twisted pairs are respectively connected with the infinite block center interface unit and the dispatch centralized interface unit;
the electrical interface is an Ethernet, and the parameters of the Ethernet are set as follows: the communication standard is IEEE802.3, the physical connection is Ethernet 10 or 100BaseT, the transmission mode is Full-duplex, the coding sequence is Big endian, the bandwidth is 100Mbits/s, and the coding mode is Manchester.
4. The interface device according to claim 2, wherein the communication hierarchy of the interface device specifically includes a data link layer, a network layer, a transport layer, a secure communication protocol layer, and an application layer;
the medium access control sublayer of the data link layer realizes data communication based on the IEEE802.3 communication standard;
the network layer adopts an IPv4 protocol as a communication protocol;
the transmission layer transmits train information in real time by adopting a UDP (user Datagram protocol);
the safety communication protocol layer is used for determining the safety communication protocols respectively adopted by the infinite blocking center interface unit and the dispatching concentration interface unit;
in the application layer, the transmission information uses a self-defined application layer protocol.
5. The interface device according to any one of claims 2 to 4, further comprising a data storage unit;
the data storage unit is used for storing the train information in a Big Endian mode, and the low address stores the most significant byte;
and the communication checking mode of the train information adopts a cyclic redundancy code checking mode.
6. The interface device of claim 5, wherein the train information includes at least one of: the train movement authorization information comprises communication train position information, communication train number, signal machine state, logic zone state, train movement authorization information and access state information.
7. A radio block control simulation system, comprising: a radio block center subsystem, a dispatch centering simulation system as claimed in claim 1 and an interface device as claimed in any one of claims 2 to 6;
and the wireless blocking center subsystem and the dispatching centralized simulation system are respectively accessed to the safety data network through a switch, and communicate according to a fixed IP and a port number specified by an IP configuration table.
8. The radio block control simulation system according to claim 7, wherein the radio block center subsystem transmits train information to the dispatch centralized simulation system through the secure data network according to a set period.
9. The radio block control simulation system according to claim 8, wherein the infinity center subsystem generates a general message packet based on the train information and transmits the train information via the general message packet before transmitting the train information in each of the set periods.
10. The radio block control simulation system according to claim 8 or 9, wherein the dispatch set simulation system records a time when the train information is received, and if the dispatch set simulation system determines that the data information from the infinity block center is not received within a continuous preset time period based on the record, the dispatch set simulation system confirms that the communication with the infinity block center is interrupted.
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