A train control system based on CTCS supporting mobile block within station

Abstract

The application discloses a train control system based on CTCS supporting in-station moving block, wherein a radio block center determines the type of signal approaching a train according to the train running position, the train state and the occupation detection device state judging signal sent by a train control and interlocking integrated subsystem, and on this basis, the train control and interlocking integrated subsystem realizes train operation permission calculation supporting in-station moving block tracking and train safety protection under abnormal conditions, and realizes the route with different checking conditions according to the train type sent by the radio block center, so as to solve the problems of low track resource utilization, long train running interval and insufficient coordination efficiency of complex station yard under the traditional in-station fixed block mode, fill the blank of the CTCS train control system supporting in-station moving block, and make technical reserves for wider application of the train control system.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of high-speed railway and city railway train operation control, and particularly relates to a train control system based on CTCS supporting in-station moving block. BACKGROUND

[0002] Currently, the train control system (CTCS system for short) in China mainly relies on fixed block or quasi-moving block technology to realize train positioning and spacing control through track circuits, transponders and radio block centers (RBCs). The traditional CTCS-2 / CTCS-3 level train control system uses a fixed block system, which divides the track line into a plurality of fixed-length sections (such as 1000 meters, 2000 meters, etc.), each section is called a block section, and each section can only be occupied by one train at the same time. The occupation state of each section is detected by track circuits, axle counters and other devices, and signals (such as speed codes or signal display) are sent to the train to indicate whether the train can enter the next section.

[0003] Under the in-station fixed block mode, the train needs to wait for the front vehicle to completely pass through and unlock all sections in the route before it can handle the route again, and then enter the route after the route is locked and the signal is opened, which limits the in-station passing capacity. In addition, if the train needs to manually input the ID and phone number / IP address of the RBC and TSRS when it first registers in the station, the operation steps are more cumbersome and the operation time is longer.

[0004] Currently, the main line train control system has been designed to support section moving block, but there is still no CTCS train control system supporting in-station moving block. Moving block has been maturely applied in the field of subways, but it is not suitable for complex station design and train-ground communication environment of main line railways.

[0005] The communication network currently used by the CTCS-3 level train control system is a circuit domain communication network based on GSM-R. Under this network system, only one communication channel can be established by a vehicle-mounted radio station, and in some scenarios, wireless communication timeout may occur, causing system degradation and affecting system operation efficiency. With the development of communication technology, packet domain communication technologies such as LTE and 5G have been widely applied in other industries, but relevant technologies have not been widely used in high-speed railway train control systems. The train-ground interaction cycle of the CTCS-3 level train control system is usually 6 seconds, and the train will send a position report to the RBC when it crosses the transponder or reaches the interaction cycle, i.e. the RBC updates the train position every 6 seconds on average, and also updates the train operation permit. This parameter meets the current tracking interval requirements of high-speed railways, but whether it meets the requirements of efficient and fine train control for in-station moving block is still questionable.

[0006] In summary, although the mobile block has been maturely applied in the field of metro, but in the main line railway station scene promotion still faces the following challenges: first, the communication delay and reliability challenge, when the station is crossed by multiple trains, the train-ground communication network (such as GSM-R) is easy to be disturbed, resulting in that the mobile authorization is not updated in time; second, the challenge of insufficient adaptability of complex station, the complexity of metro line station is low, and the number of trains in the station is small, compared with the complex scene of main line railway such as multiple tracks, multiple turnouts, large station yard and multiple vehicles, the adaptability is low; third, the challenge of equipment redundancy and cost, the current CTCS train control system such as track circuit and transponder cannot be directly used in the metro system, and the adaptation cost of the metro system is high. SUMMARY

[0007] Therefore, the application provides a CTCS-based train control system supporting station mobile block, which constructs a dual-channel redundant system to realize efficient and high-precision control of trains.

[0008] The CTCS-based train control system supporting station mobile block provided by the application comprises: ground equipment and vehicle-mounted equipment connected through a mobile communication base station, the ground equipment comprises trackside equipment and central equipment, the trackside equipment comprises a transponder, a CTC repeater terminal, a CTC station autonomous machine, an axle counting system, a signal machine, a train control and interlocking integrated subsystem TIS and track occupancy checking equipment, the central equipment comprises a radio block center subsystem RBC, a temporary speed restriction server subsystem TSRS and a dispatching centralized subsystem CTC, the vehicle-mounted equipment comprises a vehicle-mounted host, a track circuit receiving antenna, a transponder receiving antenna and a speed sensor; the temporary speed restriction server subsystem is connected with the train control and interlocking integrated subsystem TIS through a signal system safety data network, the CTC repeater terminal and the CTC station autonomous machine are connected with the dispatching centralized subsystem CTC through a dispatching centralized data network, the train control and interlocking integrated subsystem TIS is connected with the axle counting system and the signal machine, the dispatching centralized subsystem CTC is connected with the radio block center subsystem RBC and the temporary speed restriction server subsystem TSRS respectively, and the radio block center subsystem RBC and the temporary speed restriction server subsystem TSRS are connected with the vehicle-mounted equipment through wireless network equipment respectively.

[0009] Further, the driver of each controlled train sends a station number to an IP query server of the TSRS through the vehicle-mounted equipment, the IP query server returns the IP addresses of the TSRS and the RBC corresponding to the station number to the vehicle-mounted equipment of each controlled train, and each controlled train establishes a communication session with the TSRS and the RBC according to the received IP addresses.

[0010] Further, the dispatch personnel handles departure route and operation plan in CTC, CTC sends route setting information to TIS, TIS judges that the route handling condition is met, and opens the departure route; CTC sends the operation plan to TSRS, TSRS finds the corresponding train according to the operation plan, and sends the dispatch information to the corresponding train.

[0011] Further, the controlled train 1 starts running, and when the train enters the next track section, the track occupancy checking device detects the train entering, the TIS collects the track section occupancy state, and sends the occupancy state to the RBC. When the RBC judges that the route in front of the controlled train 1 is open and the route track section is idle, the RBC sends the train equipment a driving permission, and the driving permission end point is the end of the idle section in front or the maximum driving permission length. After the train equipment receives the driving permission, the train equipment turns into a full monitoring mode. After the RBC judges that the train turns into the full mode, the RBC sends the TIS that the train type of the exit signal is a communication train. The controlled train 1 enters the departure route. When the TIS receives the type of the approaching train sent by the RBC is a communication train, and the first track section of the departure route is idle, the TIS opens the multi-train departure route.

[0012] The controlled train 2 starts running, and when the train passes through the balise, the train equipment reads the balise message to obtain positioning information, and sends the positioning information to the TSRS and the RBC. When the RBC judges that the route in front of the controlled train 2 is open and the track section is idle, the RBC sends the train equipment a driving permission, and the driving permission end point is the train tail in front plus a protection distance. After the train equipment receives the driving permission, the train equipment turns into a full monitoring mode, and starts the station moving block tracking.

[0013] The controlled train 1 and the controlled train 2 run according to the driving permission, and when the controlled train 1 and the controlled train 2 both leave the station, the interval moving block tracking starts.

[0014] Further, the interval moving block tracking is in the following manner:

[0015] When the controlled train 1 and the controlled train 2 enter the next track section, the track occupancy checking device detects the train entering, the TIS collects the track section occupancy state, and sends the occupancy state to the RBC. When the RBC judges that the route in front of the controlled train 1 is open and the route track section is idle, the RBC sends the train equipment a driving permission, and the driving permission end point is the train tail in front plus a protection distance, the end of the idle section in front, or the maximum driving permission length.

[0016] Further, the IP query server queries the IP address of the ground equipment according to the station number in the following manner:

[0017] The driver inputs the station number at the operation platform, the vehicle-mounted device connects the IP query server of the TSRS through the fixed IP, and sends the station number to be queried to the IP query server;

[0018] After receiving the station number query request of the vehicle-mounted device, the IP query server checks the query request, and if the checking is successful, the query operation is performed, and when the IP address of the ground device corresponding to the station number is queried, the IP address of the RBC and the TSRS is sent to the vehicle-mounted device, and when the IP address of the corresponding ground device is not queried, a query failure message is sent to the vehicle-mounted device; if the checking fails, the error message is discarded;

[0019] When the IP address is received, the vehicle-mounted device establishes a connection with the RBC or the TSRS according to the IP address; when the query failure message is received, the vehicle-mounted device prompts the driver of the query failure, and the driver manually inputs the IP address.

[0020] Further, two wireless TCP links are established between the RBC and the vehicle-mounted device, and the communication protocols of various packet domain networks are compatible.

[0021] Further, the two wireless TCP links are established simultaneously, including:

[0022] The vehicle-mounted device is registered in the packet domain network, and the redundant channel IP address of the ground device is calculated through the main channel IP address of the TSRS or the RBC ground device input or queried by the driver; the radio 1 of the vehicle-mounted device calls the main channel IP of the TSRS or the RBC, and the radio 2 calls the redundant channel IP of the TSRS or the RBC;

[0023] After receiving the call information sent from the two channels by the vehicle-mounted device, the TSRS or the RBC checks the device ID and the security function parameters in the two call information, and after the checking is passed, the two channels established are associated, and a call response information is generated, and the call response is replied to the vehicle-mounted device from the two channels respectively, and the dual-channel connection establishment is completed; if the checking fails, a disconnection message is sent, and the call process is stopped.

[0024] Further, the redundant channel is established after the single-channel connection is established, including:

[0025] The vehicle-mounted device judges the IP address of the TSRS or the RBC which needs to be connected according to the IP address of the established connection and the main channel IP obtained before, calls the IP address of the TSRS or the RBC with the idle radio, and sends the call information through the two channels;

[0026] TSRS or RBC receives the call information sent by the on-board device from the original channel and the newly established channel, checks the device ID information of the call information, associates the newly established redundant channel with the original channel after the check is passed, generates call response information, and then replies to the call response information from the two channels to the on-board device respectively, to complete the redundant channel connection establishment; if the check fails, a disconnection message is sent to stop the redundant channel establishment process.

[0027] Further, the data transmission mode after the dual-channel redundant train-ground communication is established is as follows:

[0028] When the on-board device, TSRS or RBC judges that application messages need to be sent to the opposite side, the same application data is sent from the two channels after encapsulation according to the transmission protocol; when TSRS, RBC or the on-board device receives the message sent by the opposite side, redundant message checking is realized through the sequence number in the transmission protocol, and the application message after the checking and redundancy removal is logically processed; TSRS, RBC or the on-board device generates a response message according to the message sent by the opposite side, encapsulates the same application data from the two channels according to the transmission protocol, and completes the dual-channel application message interaction. Beneficial effects:

[0029] 1. In the application, the radio block center determines the type of signal approaching the train according to the train running position, the train state and the occupation detection device state judgment signal sent by the train control and interlocking integrated subsystem, and on this basis, the train operation permission calculation supporting the in-station moving block tracking and the train safety protection in abnormal conditions are realized. The train control and interlocking integrated subsystem realizes automatic point lighting and handling of routes with different inspection conditions according to the train type sent by the radio block center, solves the problems of low track resource utilization, long train running interval and insufficient coordination efficiency of complex station yards in the traditional in-station fixed block mode, fills the gap of the CTCS train control system supporting the in-station moving block, and also makes technical reserves for wider application of the train control system.

[0030] 2. The application constructs a high-availability and high-reliability train-ground dual-channel redundant communication network based on LTE-M\5G-R\WIFI and other packet domain communication mechanisms, guarantees high-frequency interaction of train-ground messages, and realizes high-speed, high-precision and high-safety train control. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 A system structure diagram of a train control system supporting in-station moving block based on CTCS is provided.

[0032] Figure 2 A working mode schematic diagram of a train control system supporting in-station moving block based on CTCS provided by the application when the same route is tracked.

[0033] Figure 3 A working mode schematic diagram of a train control system based on CTCS supporting mobile block in a station when tracking in the same approach.

[0034] Figure 4 A working mode schematic diagram of a train control system based on CTCS supporting mobile block in a station when tracking in different approaches. DETAILED DESCRIPTION

[0035] The present application will be described in detail below with reference to the accompanying drawings and examples.

[0036] The train control system based on CTCS supporting mobile block in a station provided by the present application supports mobile block of trains in a station, can realize functions such as dynamic query IP of trains, mobile tracking of trains in a station and parking of multiple trains in a track, and the system structure is shown in Figure 1 The ground device and the on-board device are in data communication through a mobile communication base station, the ground device includes a trackside device and a central device, the trackside device includes a transponder, a CTC repeating terminal, a CTC station autonomous machine, an axle counting system, a signal machine, a train control and interlocking integrated subsystem (TIS) and a track occupancy checking device, the central device includes a radio block center subsystem (RBC), a temporary speed restriction server subsystem (TSRS) and a dispatching centralized subsystem (CTC), the on-board device includes an on-board host, a track circuit receiving antenna, a transponder receiving antenna and a speed sensor; the temporary speed restriction server subsystem is connected with the train control and interlocking integrated subsystem (TIS) through a signal system safety data network, the CTC repeating terminal and the CTC station autonomous machine are connected with the dispatching centralized subsystem (CTC) through a dispatching centralized data network, the train control and interlocking integrated subsystem (TIS) is connected with the axle counting system and the signal machine, the dispatching centralized subsystem (CTC) is connected with the radio block center subsystem (RBC) and the temporary speed restriction server subsystem (TSRS) respectively, and the radio block center subsystem (RBC) and the temporary speed restriction server subsystem (TSRS) are connected with the on-board device through wireless network devices respectively.

[0037] The transponder is a point transmission device for transmitting messages from the ground to the on-board device, and is mainly used for realizing functions such as train positioning and message transmission. The transponder is divided into two types of active transponders and passive transponders, the active transponder selects the message to be transmitted through a train control center or a train control and interlocking integrated device, and the passive transponder transmits fixed messages to the on-board device through a writing mode.

[0038] Train control and interlocking integrated subsystem (TIS) is a signal device which realizes functions of station interlocking and section blocking by means of safe computer technology and electronic control technology. The TIS should provide the RBC with information of station train route, section direction, entity section state, turnout, signal state, emergency stopping zone, platform emergency closing button state, platform door state, etc., and receive information of virtual section logic state, approaching train type and signal crossing from the RBC, and exchange information with adjacent TIS through a signal safety data network to complete functions of station interlocking operation and section direction control. The TIS automatically controls point light-out according to the approaching train type information provided by the RBC, handles route checking conditions of different routes according to the approaching train type information provided by the RBC, and has the function of automatic route passing.

[0039] Track occupancy checking device is used to realize the function of train occupancy detection, including detection of axle counting system and track circuit, etc.

[0040] Radio block center subsystem (RBC) is a signal control system based on a fail-safe computer platform, which generates control information such as train running permit according to information provided by TIS, TSRS, adjacent RBC, CTC and on-board equipment, in combination with line parameters saved in the RBC, and sends the control information to on-board equipment through wireless communication to control safe train operation. The RBC calculates train running permit according to station route information, section direction, platform door state, emergency closing button state and train position in the jurisdiction provided by the TIS, and sends train running permit, line parameters and temporary speed limit command to on-board equipment through train-ground wireless communication; receives train position report in the jurisdiction through wireless communication, judges the occupancy or clearance state of virtual section in combination with entity section state information reported by the TIS, and sends the information to the corresponding TIS.

[0041] Temporary speed limit server subsystem (TSRS) centrally manages temporary speed limit commands and transmits temporary speed limit information to the RBC; the TSRS sends operation plan (including automatic turnaround plan), station data, inter-station data and platform door state to on-board equipment ATO; the on-board equipment ATO sends operation plan feedback, train operation state, opening / closing of platform door to the TSRS. The TSRS supports the on-board equipment to input station number through DMI, to obtain IP of the RBC and TSRS through IP query server, and also to obtain IP of the RBC and TSRS in the region through the way of transponder reading.

[0042] The dispatching centralized subsystem (CTC) should automatically generate train route instruction (route sequence) according to the operation plan, and send the converted command to the TIS device for execution. The CTC has the function of train operation tracking display under the mobile block system, sends the operation plan information to the TSRS, and the TSRS sends the operation plan confirmation information (confirmed by the on-board device ATO) and the on-board device state information to the CTC.

[0043] The on-board device has the function of train positioning, and the function of sending train position report to the RBC and the TSRS. The on-board device monitors the safe operation of the train according to the target-distance continuous speed control mode curve (braking curve) according to the train parameters and the driving permission information, line data, temporary speed limit provided by the ground device.

[0044] Specifically, the driver of each controlled train sends the station number to the IP query server of the TSRS through the on-board device, and the IP query server returns the IP address of the TSRS and RBC corresponding to the station number to the on-board device of each controlled train; each controlled train establishes a communication session with the TSRS and RBC according to the received IP address; the dispatch personnel handle the departure route and operation plan in the CTC, the CTC sends the route setting information to the TIS, the TIS judges whether the route handling conditions are met, and opens the departure route; the CTC sends the operation plan to the TSRS, and the TSRS finds the corresponding train according to the operation plan and sends the dispatch information to the corresponding train;

[0045] The controlled train 1 starts running, and when it drives into the next track section, the track occupancy checking device detects that the train drives in, the TIS collects the track section occupancy state, and sends the occupancy state to the RBC, the on-board device reads the balise message to obtain positioning information when passing through the balise, and then sends the positioning information to the TSRS and RBC; the RBC judges that the departure route in front of the controlled train 1 is open and the track section of the route is idle, and sends the driving permission to the on-board device, the end of the driving permission is the end of the idle section in front or the maximum driving permission length; the on-board device receives the driving permission and turns to the full monitoring mode, the RBC judges that the train turns into the full mode, and sends the train type of the exit signal to the TIS as a communication train; the controlled train 1 drives into the departure route; the TIS receives the type of the approaching train sent by the RBC as a communication train, and opens the multi-train departure route when the first track section of the departure route is idle;

[0046] The controlled train 2 starts running, the on-board device reads the balise message to obtain positioning information when passing through the balise, and sends the positioning information to the TSRS and RBC; the RBC judges that the departure route in front of the controlled train 2 is open and the track section is idle, and sends the driving permission to the on-board device, the end of the driving permission is the train tail in front plus a protection distance, and the on-board device receives the driving permission and turns to the full monitoring mode, and starts the in-station mobile block tracking.

[0047] The controlled train 1 and the controlled train 2 run according to the train permission, and the interval movement block tracking is started after the controlled train 1 and the controlled train 2 both run out of the station.

[0048] The interval movement block tracking is in the following mode:

[0049] When the controlled train 1 and the controlled train 2 run into the next track section, the track occupation checking device detects the train running in, the TIS collects the track section occupation state, and sends the occupation state to the RBC, the on-board device reads the balise message and obtains the positioning information when the controlled train 1 passes the balise, and the on-board device sends the positioning information to the TSRS and the RBC; the RBC judges that the route in front of the controlled train 1 is open and the route track section is idle, sends the train permission to the on-board device, and the train permission end is the end of the idle section in front, the train tail in front plus the protection distance or the maximum train permission length.

[0050] In the application, the IP query server of the TSRS queries the IP address of the ground device according to the station number, which simplifies the difficulty of the on-board device and the ground device to establish a communication connection, and the specific mode is as follows:

[0051] The driver inputs the station number at the operation table, the on-board device connects the IP query server of the TSRS through the fixed IP, and sends the station number to be queried to the IP query server;

[0052] After the IP query server receives the station number query request of the on-board device, the query request is checked, if the checking is successful, the query operation is performed, when the IP of the corresponding RBC and the IP address of the TSRS of the corresponding station are queried, the IP of the RBC / TSRS is sent to the on-board device, when the IP address of the corresponding station is not queried, the query failure message is sent to the on-board device; if the checking fails, the error request is discarded;

[0053] When the IP address is received, the on-board device establishes a connection with the RBC / TSRS according to the IP address; when the query failure message is received, the on-board device prompts the driver that the query fails, and the driver manually inputs the IP address.

[0054] The CTCS train control system supporting the mobile block constructed by the application has a high-availability double-channel redundant train-ground communication system built by supporting multiple wireless communication systems such as GPRS, LTE-M, 5G-R and WIFI communication, and realizes high-redundancy and high-reliability train-ground communication transmission. The train-ground communication protocol is optimized, two TCP links are established between the on-board device and the RBC, the wireless link is redundantly set, the communication protocol of multiple packet domain networks (such as GPRS, LTE-M, 5G-R and WIFI) is compatible, and it is ensured that the on-board device can seamlessly adapt to different network environments and realize the redundancy of the train-ground communication link.

[0055] Specifically, the establishment mode of the double-channel redundant train-ground communication includes two cases of double-channel connection simultaneous establishment and single-channel connection established and then redundant channel established.

[0056] The double-channel connection simultaneous establishment case includes:

[0057] The on-board device is registered in the packet domain network, the main channel IP address of the TSRS / RBC ground device is input or queried by the driver, and the redundant channel IP address of the ground device is calculated; the radio 1 of the on-board device calls the main channel IP of the TSRS / RBC, and the radio 2 calls the redundant channel IP of the TSRS / RBC;

[0058] After the TSRS / RBC receives the call information sent from the two channels of the on-board device, the device ID and safety function parameters in the two call information are checked, and after the check is passed, the two channels established are associated, and the call response information is generated, and the call response is replied to the on-board device from the two channels respectively, and the double-channel connection establishment is completed; if the check fails, a disconnect message is sent and the call process is stopped.

[0059] The single-channel connection established and then redundant channel established case includes:

[0060] The on-board device judges the IP address of the TSRS / RBC which needs to establish a connection according to the IP address of the established connection combined with the previously obtained main channel IP, calls the IP address of the TSRS / RBC with the idle radio, and sends the call information through the two channels;

[0061] After the TSRS / RBC receives the call information sent from the original channel and the newly established channel of the on-board device, the device ID information of the call information is checked, and after the check is passed, the newly established redundant channel is associated with the original channel, and the call response information is generated, and the call response information is replied to the on-board device from the two channels respectively, and the redundant channel connection establishment is completed; if the check fails, a disconnect message is sent and the redundant channel establishment process is stopped.

[0062] The data transmission mode after the double-channel redundant train-ground communication is established is:

[0063] When the vehicle-mounted device or the TSRS / RBC judges that the application message needs to be sent to the opposite side, the same application data is sent from two channels after encapsulation according to the transmission protocol; when the TSRS / RBC or the vehicle-mounted device receives the message sent by the opposite side, the sequence number in the transmission protocol is used to realize the redundant message checking, and the application message that passes the checking and is de-redundant is subjected to logical processing; the TSRS / RBC or the vehicle-mounted device generates a response message according to the message sent by the opposite side, encapsulates the same application data according to the transmission protocol, and sends the same application data from two channels to complete the double-channel application message interaction.

[0064] The CTCS train control system supporting mobile block constructed by the application realizes high real-time and high-precision positioning of the train by shortening the train-ground communication cycle and improving the train-ground message interaction frequency, realizes real-time, efficient and high-precision control of the train by high-precision train positioning. In addition, the rapid detection and rapid protection of the system fault state are realized through high-frequency train-ground message interaction, and the system safety is effectively improved. The communication cycle is shortened from 6s of the CTCS train control system to 1s, and the train-ground communication and control cycle is shortened to one sixth of the original, and the parameter effective improvement is as shown in the following table:

[0065]

[0066] In the above table, the position report, general message and other periodic interaction messages are updated by the MA according to the train running speed of 160km / h.

[0067] Embodiment 1:

[0068] The running process of the train control system supporting the in-station mobile block based on CTCS provided by the application is specifically as follows:

[0069] S1.1, after the train 1 and the train 2 are powered on, they are automatically registered in the train-ground wireless network, and connect to the IP query server of the TSRS.

[0070] S1.2, the driver of the train 1 and the train 2 inputs the station number, the vehicle-mounted device sends the station number to be queried to the IP query server, the IP query server returns the IP addresses of the TSRS and the RBC under the jurisdiction of the station to the vehicle-mounted device; the train 1 and the train 2 call the TSRS and the RBC through the obtained IP addresses; and a communication session is established with the TSRS and the RBC.

[0071] S1.3, the dispatch personnel handles the departure route and the operation plan in the CTC, the CTC sends the route setting information to the TIS, the TIS judges that the route handling condition is met, and the departure route is opened; the CTC sends the operation plan to the TSRS, the TSRS finds the corresponding train, and sends the dispatch information to the corresponding train.

[0072] S1.4, the train 1 starts to run forward, when it enters the next track section, the trackside occupancy checking device detects the train entering, the TIS collects the track section occupancy state and sends the occupancy state to the RBC, the train 1 passes the balise, the on-board device reads the balise message and obtains the positioning information, and the on-board device sends the positioning information to the TSRS and the RBC;

[0073] S1.5, the RBC judges that the route in front of the train 1 is open and the route track section is idle, sends the train operation permission to the on-board device, and the train operation permission end is the end of the idle section in front or the maximum train operation permission length;

[0074] S1.6, after the on-board device receives the train operation permission, it turns to the full monitoring mode, and the RBC judges that the train turns into the full mode and sends the train type of the exit signal to the TIS as a communication train;

[0075] S1.7, the train 1 enters the departure route, when the TIS receives the approaching train type sent by the RBC as a communication train and the first track section of the departure route is idle, the TIS opens the multi-train departure route;

[0076] S1.8, the train 2 starts to run, when it passes the balise, the on-board device of the train 2 reads the balise message, obtains the positioning information, and sends the positioning information to the TSRS and the RBC;

[0077] S1.9, the RBC judges that the route in front of the train 2 is open and the track section is idle, sends the train operation permission to the train 2, and the train operation permission end is the train tail in front plus a protection distance, the train 2 turns to the full monitoring mode after receiving the train operation permission and starts the in-station moving block tracking operation.

[0078] S1.10, the train 1 and the train 2 run according to the train operation permission, when they enter the next track section, the trackside occupancy checking device detects the train entering, the TIS collects the track section occupancy state and sends the occupancy state to the RBC, the train 1 passes the balise, the on-board device reads the balise message and obtains the positioning information, and the on-board device sends the positioning information to the TSRS and the RBC;

[0079] S1.11, the RBC judges that the route in front of the train 1 is open and the route track section is idle, sends the train operation permission to the on-board device, and the train operation permission end is the end of the idle section in front, the train tail in front plus a protection distance, or the maximum train operation permission length;

[0080] S1.12, the train 1 and the train 2 leave the station and follow S1.10 and S1.11 to start the section moving block tracking.

[0081] Embodiment 2:

[0082] The embodiment is a train control system based on CTCS supporting mobile block in a station, and in the same route departure tracking scenario, that is, a normal train 1 departs from a route into a departure route, and a normal train 2 is ready to subsequently enter the same departure route from the same route, and the operation flow is as shown in Figure 2 The embodiment specifically comprises the following steps.

[0083] S2.1, in the CTC, a multi-train departure route is arranged for the normal train 1 and the normal train 2, and after the CTC sends a command to the TIS, the TIS arranges a departure route of the multi-train route.

[0084] S2.2, the normal train 1 departs into the departure route, the TIS closes the signal, and after the normal train 1 departs through the first section of the inside of the departure signal, the CTC sends a command to the TIS to arrange a departure route of the multi-train route of the same route, the TIS detects that the first section of the inside of the departure signal is clear, locks the route and opens the signal, and simultaneously sends a departure route state of the train route to the RBC.

[0085] S2.3, after the RBC receives the signal open and the departure route state of the train route, the RBC calculates a driving permission end point for the normal train 2 as the tail of the normal train 1 plus a protection distance.

[0086] S2.4, the normal train 2 departs into the departure route and tracks the normal train 1 on the departure route, and the driving permission moves with the preceding train.

[0087] Embodiment 3

[0088] The embodiment is a train control system based on CTCS supporting mobile block in a station, and in the same route departure tracking scenario, that is, a normal train 1 departs from a route into a departure route, and a normal train 2 is ready to subsequently enter the same departure route from the same route, and the operation flow is as shown in Figure 3 The embodiment specifically comprises the following steps.

[0089] S3.1, in the CTC, a multi-train departure route is arranged for the normal train 1 and the normal train 2, and after the CTC sends a command to the TIS, the TIS arranges a departure route of the multi-train route.

[0090] S3.2, the normal train 1 departs into the station and clears the first section of the inside of the arrival signal, the CTC sends a command to the TIS to arrange a departure route of the multi-train route of the same route, the TIS detects that the first section of the inside of the arrival signal is clear, locks the route and opens the signal, and simultaneously sends a departure route state of the train route to the RBC.

[0091] S3.3, after the RBC receives the signal as open and the car entry route state as train route, the RBC calculates the driving permission end point of the normal train 2 as the tail of the normal train 1 plus a protection distance.

[0092] S3.4, the normal train 2 enters the car entry route and tracks the normal train 1, and the driving permission moves with the preceding train.

[0093] Embodiment 4:

[0094] This embodiment is a train control system based on CTCS supporting in-station moving block provided by the present application. In the in-station moving block and different route tracking scene, i.e., the normal train 1 enters the departure route from the track 1, and the normal train 2 is ready to enter the same departure interval from the track 2, the operation flow is as shown in Figure 4 , and specifically includes:

[0095] S4.1, the TIS detects that the normal train 1 clears the conflict turnout and the turnout state is normal, the TIS handles the multi-train departure route of the track 2 to the same departure interval, the turnout is automatically opened to the track 2, the route is locked and the departure signal is opened, and the departure route state sent to the RBC is train route.

[0096] S4.2, after the RBC receives the signal of the track 2 as open and the departure route state as train route, the RBC calculates the driving permission end point of the normal train 2 as the tail of the normal train 1 plus a protection distance.

[0097] S4.3, the normal train 2 enters the departure route and tracks the normal train 1, and the driving permission moves with the preceding train

[0098] Embodiment 5:

[0099] This embodiment is a train control system based on CTCS supporting in-station moving block provided by the present application. In the in-station moving block and automatic through route scene, i.e., the normal train 1 enters the automatic through route, and the normal train 2 is ready to enter the same automatic through route, the operation flow includes:

[0100] S5.1, the CTC issues an automatic through route command, the TIS receives the command and sets the automatic through route, the route is locked and the signal is opened after meeting the conditions, and the departure route state sent to the RBC by the TIS is train route.

[0101] S5.2, the signal is closed after the normal train 1 enters the route, the route is not unlocked after the normal train 1 clears the first section of the automatic through route, the signal is automatically reopened, and the departure route state sent to the RBC by the TIS is train route.

[0102] S5.3, after receiving the automatic passing route signal, the RBC calculates the train permission end point of the normal train 2 as the tail of the normal train 1 plus a protection distance.

[0103] S5.4, the normal train 2 enters the automatic passing route and tracks the normal train 1, and the train permission moves with the preceding train.

[0104] Currently, the CTCS train control system does not support in-station moving block, and cannot query the communication IP address of the equipment through the station number. Although moving block has been maturely applied in the field of metro, it cannot be adapted to the in-station scene of main line railway. The application provides a CTCS train control system supporting in-station moving block, the RBC judges the type of approaching train of the signal according to the train running position, the train state and the state of the occupation detection equipment sent by the TIS, and sends it to the TIS; the RBC realizes the train permission calculation function supporting in-station moving block tracking according to the train running position, the train state, the state of the occupation detection equipment sent by the TIS and the train route state; if an abnormality occurs under the moving block system, the RBC can realize the train safety protection technology based on in-station moving block according to the train running position, the train state, the state of the occupation detection equipment sent by the TIS and the train route state; the high-availability, high-reliability, train-ground dual-channel redundant communication network design based on GPRS / LTE-M / 5G-R / WIFI and other packet domain communication technologies, the high-speed, high-precision and high-safety train control technology based on high-frequency train-ground message interaction; the TIS automatically turns on and off the light according to the train type of the signal transmitted by the RBC, the TIS handles the route with different checking conditions according to the approaching train type of the signal transmitted by the RBC, the TIS realizes the automatic passing route unlocking and automatic re-opening of the signal according to the conditions according to the automatic passing command of the CTC, the approaching train type of the signal transmitted by the RBC and the information such as section occupation state and switch state; the TSRS automatically queries the corresponding IP address and sends it to the on-board equipment according to the station number transmitted by the on-board equipment, and the on-board equipment can automatically connect the corresponding ground equipment according to the query result.

[0105] The CTCS-based train control system constructed by the application supports the in-station mobile block, realizes the train type judgment of the approaching signal machine, and realizes the automatic control of the signal machine point-off light state; the route handling of different checking conditions is realized according to the train type of the approaching signal machine, the signal automatic re-opening of the automatic passing route of the train is realized according to the CTC command, the train type of the approaching signal machine, the section state and the turnout state, the mobile block tracking in the station is realized according to the train type of the approaching signal machine, the train tracking interval is effectively reduced, and the system operation efficiency is improved; the automatic passing route is handled, the route is not unlocked, the signal is automatically re-opened according to the condition, the workload of the route handling is further reduced, and the system operation efficiency is improved.

[0106] The system supports the driver to only input the station number for the vehicle-mounted device registration connection, greatly simplifies the driver registration process, reduces the workload of the driver, and improves the operation efficiency. The system research improves the method of the train-ground wireless communication cycle, realizes the real-time and efficient acquisition of the train position, shortens the train tracking interval, and realizes the efficient and high-precision control of the train. The dual-channel redundant system is constructed by using multiple wireless communication systems, the communication protocol is optimized, two TCP links are established between the vehicle-mounted device and the RBC, the wireless link redundancy is set, the communication protocols of multiple packet domain networks (such as GPRS / LTE-M / 5G-R / WIFI) are compatible, the vehicle-mounted device can be seamlessly adapted to different network environments, and the redundancy of the train-ground communication link is realized.

[0107] To sum up, the above is only a preferred embodiment of the application, and is not used to limit the protection scope of the application. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the application shall be included in the protection scope of the application.

Claims

1. A train control system based on CTCS supporting in-station moving block, characterized in that, The application relates to a train control system, which comprises ground equipment and vehicle equipment connected through a mobile communication base station, wherein the ground equipment comprises trackside equipment and central equipment, the trackside equipment comprises a transponder, a CTC (Centralized Traffic Control) repeater terminal, a CTC station autonomous machine, an axle counting system, a signal machine, a TIS (Train and Track Integrated System) and track occupation checking equipment, the central equipment comprises an RBC (Radio Block Center) subsystem, a TSRS (Temporary Speed Restriction Server) subsystem and a CTC (Centralized Traffic Control) subsystem, the vehicle equipment comprises a vehicle host, a track circuit receiving antenna, a transponder receiving antenna and a speed sensor; the TSRS subsystem is connected with the TIS through a signal system safety data network, the CTC repeater terminal and the CTC station autonomous machine are connected with the CTC through a CTC data network, the TIS is connected with the axle counting system and the signal machine, the CTC is connected with the RBC and the TSRS, and the RBC and the TSRS are connected with the vehicle equipment through wireless network equipment. The driver of each controlled train sends a station number to an IP query server of the TSRS through the vehicle equipment, the IP query server returns the IP addresses of the TSRS and the RBC corresponding to the station number to the vehicle equipment, and each controlled train establishes a communication session with the TSRS and the RBC according to the received IP addresses. The IP query server queries the IP addresses of the ground equipment according to the station number in the following way: The driver inputs a station number on an operation platform, the vehicle equipment connects the IP query server of the TSRS through a fixed IP, and sends the station number to be queried to the IP query server; After receiving the station number query request of the vehicle equipment, the IP query server checks the query request, executes a query operation if the checking is successful, sends the IP addresses of the RBC and the TSRS to the vehicle equipment when the IP addresses of the ground equipment corresponding to the station number are found, and sends a query failure message to the vehicle equipment when the IP addresses of the ground equipment corresponding to the station number are not found; If the checking fails, the error message is discarded; When the IP addresses are received, the vehicle equipment establishes a connection with the RBC or the TSRS according to the IP addresses; when the query failure message is received, the vehicle equipment prompts the driver of a query failure, and the driver manually inputs the IP addresses. The dispatch personnel handle departure routes and operation plans in the CTC, the CTC sends route setting information to the TIS, the TIS judges whether the route handling conditions are met, and the departure route is opened; the CTC sends the operation plan to the TSRS, the TSRS finds corresponding trains according to the operation plan, and sends dispatch information to the corresponding trains.

2. The column control system of claim 1, wherein, ​ 3. The column control system of claim 1, wherein, The controlled train 1 starts running, and when the train enters the next track section, the track occupancy checking device detects the train entering, the TIS collects the track section occupancy state, and sends the occupancy state to the RBC. The on-board device reads the balise message to obtain positioning information when passing through the balise, and sends the positioning information to the TSRS and the RBC. When the RBC judges that the route in front of the controlled train 1 is open and the route track section is idle, the RBC sends a train operation permission to the on-board device, and the end of the train operation permission is the end of the idle section in front or the maximum train operation permission length. After the on-board device receives the train operation permission, the on-board device turns into a full monitoring mode, and the RBC judges that the train turns into the full mode, and then the RBC sends a train type of the exit signal to the TIS, which is a communication train. The controlled train 1 enters the departure route. When the TIS receives the train type sent by the RBC, which is a communication train, and the first track section of the departure route is idle, the TIS opens the multi-train departure route. The controlled train 2 starts running, and the on-board device reads the balise message to obtain positioning information when passing through the balise, and sends the positioning information to the TSRS and the RBC. When the RBC judges that the route in front of the controlled train 2 is open and the track section is idle, the RBC sends a train operation permission to the on-board device, and the end of the train operation permission is the train tail in front plus a protection distance. After the on-board device receives the train operation permission, the on-board device turns into a full monitoring mode, and starts the station moving block tracking. The controlled train 1 and the controlled train 2 run according to the train operation permission, and when the controlled train 1 and the controlled train 2 both leave the station, the interval moving block tracking starts.

4. The column control system of claim 3, wherein, The interval moving block tracking mode is as follows: When the controlled train 1 and the controlled train 2 enter the next track section, the track occupancy checking device detects the train entering, the TIS collects the track section occupancy state, and sends the occupancy state to the RBC. The on-board device reads the balise message to obtain positioning information when passing through the balise, and the on-board device sends the positioning information to the TSRS and the RBC. When the RBC judges that the route in front of the controlled train 1 is open and the route track section is idle, the RBC sends a train operation permission to the on-board device, and the end of the train operation permission is the end of the idle section in front, the train tail in front plus a protection distance, or the maximum train operation permission length.

5. The column control system of claim 1, wherein, Two wireless TCP links are established between the RBC and the on-board device, and the communication protocol of multiple packet domain networks is compatible.

6. The column control system of claim 5, wherein, The two wireless TCP links are established simultaneously, including the following steps: The on-board device is registered in the packet domain network, and the redundant channel IP address of the ground device is calculated through the main channel IP address of the TSRS or the RBC ground device input or queried by the driver. Radio 1 of the on-board device calls the main channel IP of the TSRS or the RBC, and radio 2 calls the redundant channel IP of the TSRS or the RBC. After the TSRS or the RBC receives the call information sent from the two channels by the on-board device, the device ID and the safety function parameters in the two call information are checked. After the check is passed, the two channels established are associated, and a call response information is generated. Then, the call response is replied to the on-board device from the two channels respectively, and the double-channel connection establishment is completed. If the check is not passed, a disconnection message is sent, and the call process is stopped.

7. The column control system of claim 5, wherein, The redundant channel is established after the single-channel connection is established, including the following steps: The vehicle-mounted device judges the IP address of the TSRS or RBC needing to be connected according to the IP address of the established connection in combination with the previously acquired main channel IP, calls the IP address of the TSRS or RBC by using the idle radio station, and sends the calling information through the two channels; After receiving the calling information sent by the vehicle-mounted device from the original channel and the newly established channel, the TSRS or RBC checks the device ID information of the calling information, associates the newly established redundant channel with the original channel after the checking is passed, generates calling response information, and replies the calling response information to the vehicle-mounted device from the two channels respectively, thereby completing the establishment of the redundant channel connection; if the checking is not passed, a disconnection message is sent, and the redundant channel establishment process is stopped.

8. The column control system of claim 5, wherein, After the dual-channel redundant train-ground communication is established, the data transmission mode is as follows: When the vehicle-mounted device, the TSRS or the RBC judges that the application message needs to be sent to the other party, the same application data is sent from the two channels after being encapsulated according to the transmission protocol; when the TSRS, the RBC or the vehicle-mounted device receives the message sent by the other party, the redundant message checking is realized through the sequence number in the transmission protocol, and the application message after the checking and the redundancy are removed is logically processed; The TSRS, the RBC or the vehicle-mounted device generates a response message according to the message sent by the other party, encapsulates the same application data from the two channels after being encapsulated according to the transmission protocol, and completes the dual-channel application message interaction.

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