Train automatic turn-back control method based on moving block

Abstract

The invention discloses an automatic train turn-back control method based on moving block, which is based on an ATP (Automatic Train Protection) unit, an ATO (Automatic Train Operation) unit, peripheral equipment, a vehicle console and a train-ground wireless communication radio station, and can realize post-station automatic turn-back and in-situ automatic turn-back in a moving block mode when the ATO is in an automatic driving AM (Advanced Maintenance) mode, in the automatic turn-back process, the RBC periodically sends a moving block driving permission, the vehicle-mounted device periodically sends turn-back state information to the TSRS, the TSRS forwards the information to the CTC, and the moving block driving permission can effectively shorten the turn-back time and reduce the tracking interval of the train, so that the public transportation operation requirement is met, the transportation efficiency is improved, and the construction cost is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of railway train operation control, and particularly relates to a train automatic reverse control method based on moving block. Background Art

[0002] Different from high-speed railways and urban rail transit, the suburban railway, as an important transportation system serving the passenger transport demand between the central urban area and surrounding town clusters, has the passenger flow characteristics of large flow, strong periodicity, and commuting, and needs to meet the operation requirements of high density and bus-like operation. Existing CTCS systems are all based on the quasi-moving block mode, with a large operation interval. Although the current CTCS2+ATO system has been upgraded and transformed with the automatic reverse function on the basis of the quasi-moving block mode, the train reverse time is long, and it is difficult to meet the future bus-like operation requirements of the suburban railway. Moving block, as an advanced block system, can effectively shorten the train tracking interval. The moving block train control system for suburban railways based on CTCS supports a maximum allowable speed of not less than 160 km / h, a minimum tracking interval of not more than 150 seconds, and has the ATO automatic driving function. Achieving automatic reverse in the moving block automatic driving mode, the process is as Figure 1 shown, which can effectively shorten the reverse time, reduce the train tracking interval, thus meeting the bus-like operation requirements, and is of great significance for improving transportation efficiency and reducing construction costs.

[0003] Existing CTCS systems are all based on the quasi-moving block mode, with a large operation interval. Although the current CTCS2+ATO system has been upgraded and transformed with the automatic reverse function on the basis of the quasi-moving block mode, the train reverse time is long, and it is difficult to meet the future bus-like operation requirements of the suburban railway. Therefore, the present invention proposes a train automatic reverse control method based on moving block, which can realize moving block tracking based on the wireless communication between RBC and TSRS and the data interaction of on-vehicle equipment, and realize the post-station automatic reverse and in-situ automatic reverse of the train in the moving block mode, effectively shortening the reverse time and reducing the train tracking interval. Summary of the Invention

[0004] In view of this, the present invention provides a train automatic reverse control method based on moving block, which realizes the post-station automatic reverse and in-situ automatic reverse in the moving block mode.

[0005] The train automatic reverse control method based on moving block provided by the present invention includes the following steps:

[0006] Step 1: The on-vehicle equipment issues a reverse prompt to make the train run to the reverse station. When the automatic reverse condition is met, the ATB button indicator light on the driver's console flashes green; when the reverse prompt is for post-station automatic reverse, step 2 is executed, and when the reverse prompt is for in-situ automatic reverse, step 3 is executed;

[0007] Step 2: After the ATB button is pressed, the on-vehicle equipment enters the post-station automatic reverse preparation state, sends a reverse packet to the RBC to output a reverse activation signal, and the ATB button indicator light is constantly on with a green light; the train uses the reverse activation signal as an equivalent key to output cab activation and the direction handle forward, and outputs a reverse activation feedback signal, and the DMI prompts that the cab can be closed; after the cab is closed, it enters the post-station automatic reverse state and sends information on entering the automatic reverse state to the TSRS;

[0008] When the on-vehicle equipment receives the RBC movement authority and meets the operating conditions, it controls the train to automatically drive into the reverse line and stop steadily and accurately, and initiates an automatic end change; after the automatic end change is completed, the train exits the reverse line and stops steadily and accurately on the platform track; the corresponding side doors are automatically opened to achieve platform door linkage with the ground equipment. After the cab key of the active end is activated, the automatic reverse button indicator light on the cab is extinguished, and the post-station automatic reverse process is completed;

[0009] Step 3: After the ATB button is pressed, the on-vehicle equipment enters the in-situ automatic reverse preparation state, sends a reverse packet to the RBC, outputs a reverse activation signal, and the ATB button indicator light is constantly on with a green light;

[0010] The train uses the reverse activation signal as an equivalent key to output cab activation and the direction handle forward, and outputs a reverse activation feedback signal, and the DMI prompts that the cab can be closed; after the cab key is pulled out, it enters the in-situ automatic reverse state and sends information on entering the in-situ automatic reverse state to the TSRS to initiate an end change;

[0011] After the on-vehicle equipment of the original active end A end checks that the conditions are met, it performs an automatic end change; the on-vehicle equipment of the original dormant end B end outputs that the reverse activation signal is valid to the train; the on-vehicle equipment of the A end enters the sleep mode and maintains the communication connection with the RBC; the cab key of the B end is activated, and the automatic reverse button indicator light on the cab is extinguished, and the in-situ automatic reverse process is completed.

[0012] Further, the method of the automatic end change in Step 2 is as follows:

[0013] The on-vehicle equipment of the original active end A end sends an end change request and related data to the on-vehicle equipment of the original dormant end B end; the on-vehicle equipment of the B end replies to confirm the end change request to the on-vehicle equipment of the A end and updates the relevant DMI information and status information;

[0014] The on-vehicle equipment of the A end cancels sending the reverse activation signal to the train, enters the SB mode, and disconnects from the TSRS. The on-vehicle equipment of the A end maintains the connection with the RBC until the RBC actively initiates disconnection; the on-vehicle equipment of the B end enters the SB mode from the SL mode and outputs braking;

[0015] The on-vehicle equipment at the B end sends a reverse activation signal to the train to activate the driver's cab and light up the ATB button indicator light on the driver's cab; the train sends a sleep signal to the on-vehicle equipment at the A end, and the A end enters the SL mode. At the same time, the output brake is cancelled. The on-vehicle equipment at the A end maintains the connection with the RBC. After the RBC completes the head and tail screening confirmation of the B end, it actively initiates the disconnection of the A end connection;

[0016] The on-vehicle equipment at the B end automatically completes the power-on registration in the SB mode and sends the end-of-end-changing information to the TSRS; if the on-vehicle equipment at the B end starts to connect with the RBC during the power-on automatic registration, the on-vehicle equipment at the B end inserts the key, the ATP cancels the reverse activation signal, collects the real direction handle state of the train, and maintains the task startup process of the RBC and the on-vehicle equipment at the B end.

[0017] Furthermore, the information transmitted from the on-vehicle equipment at the A end to the on-vehicle equipment at the B end includes: the internal state information of the train, the TSRS ID and the TSRS IP address, the train number after end-changing, the conductor, the driver number, the RBC ID and the RBC IP address, stop stably and accurately; the information transmitted from the on-vehicle equipment at the B end to the on-vehicle equipment at the A end includes: the internal state information of the vehicle, the direction handle, traction and brake handle states of the B end cab.

[0018] Furthermore, the method of automatic end-changing in step 3 is as follows:

[0019] The on-vehicle equipment at the A end sends an end-changing request and related data to the on-vehicle equipment at the B end; the on-vehicle equipment at the B end replies with an end-changing request confirmation to the on-vehicle equipment at the A end, and updates the DMI-related information and status information;

[0020] The on-vehicle equipment at the A end cancels the reverse activation signal sent to the train and enters the SB mode, and disconnects the connection with the TSRS. The on-vehicle equipment at the A end maintains the connection with the RBC until the RBC actively initiates the disconnection; the on-vehicle equipment at the B end enters the SB mode from the SL mode and outputs the brake;

[0021] The on-vehicle equipment at the B end sends a reverse activation signal to the train to activate the driver's cab and light up the ATB button indicator light on the driver's cab; the train sends a sleep signal to the on-vehicle equipment at the A end, and the on-vehicle equipment at the A end enters the SL mode. At the same time, the output brake is cancelled. The on-vehicle equipment at the A end maintains the connection with the RBC. After the RBC completes the head and tail screening confirmation of the B end, it actively initiates the disconnection of the A end connection;

[0022] The on-vehicle equipment at the B end automatically completes the power-on registration in the SB mode and sends the end-of-end-changing information to the TSRS; if the on-vehicle equipment at the B end starts to connect with the RBC during the power-on automatic registration, and the B end inserts the key, the ATP cancels the reverse activation signal, collects the real direction handle state of the train, and maintains the task startup process of the RBC and the on-vehicle equipment at the B end.

[0023] A train automatic reverse control system based on moving block provided by the present invention includes: an ATP on-vehicle main control unit, an ATO on-vehicle main control unit, peripheral equipment, a vehicle driver's cab, and a vehicle-ground wireless communication radio. The ATP on-vehicle main control unit is connected to the ATO on-vehicle main control unit through a serial port and performs post-station automatic reverse and in-situ automatic reverse when the on-vehicle equipment is in the automatic driving AM mode. Automatic reverse on-vehicle equipment is installed at both ends A and B of the train. The automatic reverse on-vehicle equipment at both ends A and B realizes data interaction between the automatic reverse on-vehicle equipment at both ends through a head-to-tail through cable. End A is the duty end before the train reverses at the station, and end B is the non-duty end.

[0024] The ATO on-vehicle main control unit realizes the automatic reverse function under the protection of the ATP on-vehicle main control unit and communicates with the radio block center RBC and the temporary speed restriction server TSRS in this area through a wireless communication radio. The RBC calculates the moving block train operation authorization according to the information provided by the train control and interlocking integrated system TIS and the train position in its jurisdiction, and sends information such as train operation authorization, line parameters, and temporary speed restriction commands to the on-vehicle equipment through vehicle-ground wireless communication.

[0025] The TSRS sends the operation plan, station data, inter-station data, and platform door status to the ATO on-vehicle main control unit. The ATO on-vehicle main control unit sends the operation plan feedback, train operation status, and open or close the platform door to the TSRS.

[0026] Further, the peripheral equipment includes a track circuit receiving antenna, a transponder receiving antenna, and a speed measurement and distance measurement unit.

[0027] Further, the vehicle driver's cab includes an ATO start button, a DMI, and an automatic reverse ATB button.

[0028] Beneficial effects:

[0029] The present invention provides a train automatic reverse control method based on moving block. Based on the ATP unit, ATO unit, peripheral equipment, vehicle driver's cab, and vehicle-ground wireless communication radio, post-station automatic reverse and in-situ automatic reverse in the moving block mode can be realized when the ATO is in the automatic driving AM mode. Among them, in the automatic reverse process, the RBC periodically sends the moving block train operation authorization, and the on-vehicle equipment periodically sends the reverse status information to the TSRS. The TSRS forwards this information to the CTC. The moving block train operation authorization can effectively shorten the reverse time, reduce the train tracking interval, thereby meeting the demand for bus-like operation, improving the transport efficiency, and reducing the construction cost. Description of the drawings

[0030] Figure 1 It is a schematic diagram of the train's post-station automatic reverse operation.

[0031] Figure 2Schematic diagram of the automatic train reverse procedure after the station in the automatic train reverse control method based on moving block provided by the present invention.

[0032] Figure 3 Schematic diagram of the automatic train reverse procedure in place in the automatic train reverse control method based on moving block provided by the present invention.

[0033] Figure 4 Schematic diagram of the structure of the automatic train reverse system based on moving block provided by the present invention. Detailed implementation manners

[0034] The following are examples for a detailed description of the present invention.

[0035] The automatic train reverse control method based on moving block provided by the present invention realizes the automatic reverse after the station, and the processing procedure is as Figure 2 shown, and the specific procedure includes:

[0036] Step 1.1: The on-vehicle equipment for automatic reverse sends a reverse prompt to the driver through the DMI according to the reverse plan sent by the CTC and the train operation authorization sent by the RBC, and the train runs to the reverse station.

[0037] When the ATB button indicator light on the vehicle cab satisfies the following conditions, it flashes green, including: the on-vehicle equipment at both ends of the vehicle works normally and the head and tail communication is normal, the train stops stably and accurately on the track, receives the automatic reverse plan after the station, the on-vehicle equipment at end A is in the automatic driving AM mode, and the on-vehicle equipment at end B is in the SL mode; when the ATB button indicator light flashes green, the ATB button can be pressed.

[0038] After the on-vehicle equipment for automatic reverse detects that the ATB button is pressed, it enters the preparation state for automatic reverse after the station, sends a reverse packet to the RBC, outputs a reverse activation signal, and the ATB button indicator light lights up with a stable green light.

[0039] The vehicle outputs the reverse activation signal as an equivalent key to activate the cab and set the direction handle forward, and at the same time gives a reverse activation feedback signal, and the DMI prompts that the cab can be closed.

[0040] When the cab key is pulled out to close the cab, it enters the automatic reverse state after the station, and sends information about entering the automatic reverse state to the TSRS.

[0041] Step 1.6. When the cab is detected to be closed by the automatic reverse on-vehicle equipment and the train is in the automatic reverse state after the station, upon receiving the RBC movement authority, the train is controlled to automatically enter the reverse line and stop stably and accurately when the following conditions are met: no emergency brake is output; ATO is working properly; the vehicle allows the on-vehicle equipment to control the train by ATO; the on-vehicle equipment ATO receives the permitted speed from ATP; the movement authority of ATP passes the departure signal; the equivalent forward position of the direction handle at end A, and the traction and brake handles are in the zero position; the on-vehicle equipment at end A is in the automatic reverse state; the on-vehicle equipment at end B is working properly and in the SL mode.

[0042] Step 1.7. The automatic reverse on-vehicle equipment initiates an automatic cab change. When the following conditions are judged to be met, that is, the current active end (end A) initiates an automatic cab change to the current dormant end (end B) through the vehicle through line. The conditions include: the train has entered the reverse line and stopped stably; the on-vehicle equipment at end A is in the automatic reverse state after the station; the on-vehicle equipment at end A is in the AM mode, and the on-vehicle equipment at end B is in the SL mode; the on-vehicle equipment at both ends is working properly and the head-to-tail communication is normal; the equivalent forward position of the direction handle at end A, and the traction and brake handles are in the zero position; the doors are closed and locked; the train number after the cab change sent by CTC is valid.

[0043] The specific process includes:

[0044] Step 1.7.1. The on-vehicle equipment at end A sends a cab change request and related data to the on-vehicle equipment at end B; the on-vehicle equipment at end B replies with a confirmation of the cab change request to the on-vehicle equipment at end A and updates the relevant DMI information and status information.

[0045] Step 1.7.2. The on-vehicle equipment at end A cancels sending the reverse activation signal to the vehicle, enters the SB mode, and disconnects from the TSRS. The on-vehicle equipment at end A still maintains the connection with the RBC until the RBC actively initiates disconnection; the on-vehicle equipment at end B enters the SB mode from the SL mode and outputs braking.

[0046] Step 1.7.3. The on-vehicle equipment at end B sends a reverse activation signal to the vehicle to activate the cab and light up the ATB button indicator light on the cab; the vehicle sends a sleep signal to the on-vehicle equipment at end A, and end A enters the SL mode. At the same time, the output of braking is cancelled. The on-vehicle equipment at end A still maintains the connection with the RBC. After the RBC completes the head-to-tail screening confirmation of end B, it actively initiates disconnection of the connection with end A.

[0047] Step 1.7.4. The on-vehicle equipment at end B automatically completes the power-on registration in the SB mode and sends cab change end information to the TSRS; if the key is inserted during the process of the on-vehicle equipment at end B starting to connect to the RBC during the power-on automatic registration, the ATP cancels the reverse activation signal, collects the actual state of the direction handle of the vehicle, and maintains the task startup process of the RBC and the on-vehicle equipment at end B.

[0048] The information transmitted from the on-vehicle equipment at end A to the on-vehicle equipment at end B shall include: vehicle internal status information (periodic information); TSRS ID, TSRS IP address; train number after end change; conductor number; driver number; RBC ID, RBC IP address; stop steadily and accurately. The information transmitted from the on-vehicle equipment at end B to the on-vehicle equipment at end A shall include: on-vehicle internal status information (periodic information); status of the direction handle, traction and brake handles in the cab at end B.

[0049] Step 1.8: After the automatic end change is completed, the on-vehicle equipment at end B outputs a valid reverse activation signal to the vehicle; the on-vehicle equipment at end A enters the sleep mode and maintains the communication connection with the RBC; when the on-vehicle equipment at end B receives the train operation permit from the RBC and meets the following conditions, the on-vehicle equipment transfers to the AM mode in the FS mode. The conditions include: the train is in the automatic reverse state after the station; the equivalent forward direction of the direction handle at end B; the traction and brake handles are in the zero position; no emergency brake is output; the on-vehicle equipment is working properly; the vehicle allows ATO to control the train; the train operation permit of ATP is greater than the length of the train.

[0050] Step 1.9: After the vehicle exits the reverse line and stops steadily and accurately on the platform track, the corresponding side doors are automatically opened according to the CTC operation plan, and the platform screen doors are interlocked with the ground equipment.

[0051] Step 1.10: After the key of the cab at end B is activated, the on-vehicle equipment turns off the indicator light of the automatic reverse button on the cab, cancels the output of the reverse activation signal, and the on-vehicle equipment sends the automatic reverse success information to the TSRS to complete the automatic reverse process.

[0052] A train automatic reverse control method based on moving block provided by the present invention realizes in-situ automatic reverse, and the processing process is as Figure 3 shown, and the specific process includes:

[0053] Step 2.1: The on-vehicle equipment gives a reverse prompt to the driver through the DMI according to the reverse plan sent by the CTC and the train operation permit sent by the RBC, and the train runs to the reverse station.

[0054] Step 2.2: When the following conditions are met for the automatic reverse button (ATB button) and the indicator light on the cab, the indicator light of the ATB button flashes green. The conditions include: the on-vehicle equipment at both ends is working properly and the head and tail communication is normal; the train stops steadily and accurately on the track; the in-situ automatic reverse plan is received; the on-vehicle equipment at end A is in the AM mode and the on-vehicle equipment at end B is in the SL mode.

[0055] Step 2.3: After the on-vehicle equipment detects that the ATB button is pressed, it enters the in-situ automatic reverse preparation state, sends a reverse packet to the RBC, outputs a reverse activation signal, and the indicator light of the ATB button lights up with a stable green light.

[0056] Step 2.4: The vehicle outputs the cab activation and the forward direction handle with the reverse activation signal as an equivalent key, and at the same time gives a reverse activation feedback signal. The DMI prompts that the cab can be closed.

[0057] Step 2.5: Pull out the cab key, enter the in-situ automatic reverse state, and send the information of entering the in-situ automatic reverse state to the TSRS to initiate end-changing.

[0058] Step 2.6: After the on-vehicle equipment at end A checks that the following conditions are met, it starts automatic end-changing. The conditions include: the train has entered the track and stopped steadily and accurately; the on-vehicle equipment at end A is in the in-situ automatic reverse state; the on-vehicle equipment at end A is in the AM mode and the on-vehicle equipment at end B is in the SL mode; the on-vehicle equipment at both ends works normally and the head and tail communication is normal; the equivalent forward direction handle at end A, the traction and brake handles are in the zero position; the train number after end-changing sent by the CTC is valid.

[0059] The specific process includes:

[0060] Step 2.6.1: The on-vehicle equipment at end A sends a end-changing request and related data to the on-vehicle equipment at end B; the on-vehicle equipment at end B replies with an end-changing request confirmation to the on-vehicle equipment at end A, and updates the relevant DMI information and status information.

[0061] Step 2.6.2: The on-vehicle equipment at end A cancels sending the reverse activation signal to the vehicle and enters the SB mode, and disconnects from the TSRS. The on-vehicle equipment at end A maintains the connection with the RBC until the RBC actively initiates disconnection; the on-vehicle equipment at end B enters the SB mode from the SL mode and outputs braking.

[0062] Step 2.6.3: The on-vehicle equipment at end B sends a reverse activation signal to the vehicle to activate the cab and light up the ATB button indicator light on the cab; the vehicle sends a sleep signal to the on-vehicle equipment at end A, and the on-vehicle equipment at end A enters the SL mode. At the same time, the output braking is cancelled. The on-vehicle equipment at end A maintains the connection with the RBC. After the RBC completes the head and tail screening confirmation of end B, it actively initiates disconnection of the connection at end A.

[0063] Step 2.6.4: The on-vehicle equipment at end B automatically completes power-on registration in the SB mode and sends end-changing completion information to the TSRS; if a key is inserted at end B during the process of the on-vehicle equipment at end B starting to connect to the RBC during power-on automatic registration, the ATP cancels the reverse activation signal, collects the actual direction handle state of the vehicle, and maintains the task startup process of the RBC and end B.

[0064] Step 2.7: After automatic end-changing is completed, the on-vehicle equipment at end B outputs that the reverse activation signal is valid to the vehicle.

[0065] Step 2.8: The on-vehicle equipment at end A enters the sleep mode and maintains the communication connection with the RBC. After the cab key at end B is activated, the on-vehicle equipment turns off the indicator light of the cab auto-reversal button, cancels the output of the reversal activation signal, and the on-vehicle equipment sends the in-place auto-reversal success information to the TSRS to complete the auto-reversal process.

[0066] Based on an automatic train reversal control method based on moving block provided by the present invention, the present invention constructs an automatic train reversal control system based on moving block. The system structure is as Figure 4 shown, and specifically includes: ATP on-vehicle main control unit, ATO on-vehicle main control unit, peripheral equipment, vehicle cab, and vehicle-ground wireless communication radio, etc. The ATP on-vehicle main control unit is connected to the ATO on-vehicle main control unit through a serial port and performs post-station auto-reversal and in-place auto-reversal when the on-vehicle equipment is in the automatic driving AM mode. Automatic reversal on-vehicle equipment is installed at both ends A and B of the train. The automatic reversal on-vehicle equipment at both ends A and B realizes data interaction between the automatic reversal on-vehicle equipment at both ends through a head-to-tail through cable. End A is the duty end before the train reverses at the station, and end B is the non-duty end.

[0067] Among them, the peripheral equipment includes a track circuit receiving antenna, a balise receiving antenna, and a speed measurement and distance measurement unit. The vehicle cab includes an ATO start button, a DMI, and an automatic reversal ATB button.

[0068] Specifically, the automatic reversal function of the ATO on-vehicle main control unit is realized under the protection of the ATP on-vehicle main control unit. The automatic reversal on-vehicle equipment communicates with the radio block center RBC and the temporary speed restriction server TSRS in this area through a wireless communication radio. The RBC calculates the moving block train operation authorization according to the information provided by the train control and interlocking integrated system TIS and the train position information in its jurisdiction, and sends train operation authorization, line parameters, and temporary speed restriction commands and other information to the on-vehicle equipment through vehicle-ground wireless communication. The TSRS sends operation plans (including automatic reversal plans), station data, inter-station data, and platform door status and other information to the ATO on-vehicle main control unit; the ATO on-vehicle main control unit sends operation plan feedback, train operation status, open or close platform door and other information to the TSRS. During the automatic reversal process, the RBC periodically sends the moving block train operation authorization, and the on-vehicle equipment periodically sends the reversal status information to the TSRS, and the TSRS forwards this information to the CTC. Among them, the sending period can be once every 6 seconds.

[0069] To realize the automatic train reversal function based on moving block, the on-vehicle equipment and the ground core equipment need to realize the following functions:

[0070] The ATP on-vehicle main control unit mainly realizes the function of train overspeed protection. During the implementation of the automatic return function, when the ATP on-vehicle main control unit at the driving end enters the automatic return state, the ATP on-vehicle main control unit at the non-driving end (i.e., the dormant end) enters the standby mode SB from the dormant mode SL and automatically completes the startup process according to the received end-changing data. The ATP on-vehicle main control unit outputs or cancels the return activation signal to the vehicle to keep or cancel the cab activation state, and receives the feedback signal from the vehicle.

[0071] The ATO on-vehicle main control unit realizes the functions related to automatic train operation. During the implementation of the automatic return function, the ATO on-vehicle main control unit sends the return status information to the TSRS, and receives the return operation plan sent by the TSRS, and determines to enter the in-situ automatic return state or the post-station automatic return state according to the return operation plan; the ATO on-vehicle main control unit realizes the data interaction and IO control interaction of the dual-end on-vehicle equipment through the through-wire cable of the two-end equipment, and completes the automatic end-changing according to the return operation plan.

[0072] The receiving antenna of the vehicle-ground wireless communication radio receives the track circuit information, and transmits the demodulated track circuit carrier frequency and low frequency to the ATP on-vehicle main control unit; the on-vehicle transponder receiving antenna receives the ground transponder data, including the precise positioning transponder for controlling the train to stop stably and accurately; the on-vehicle speed measurement and distance measurement unit fuses multi-source speed measurement and distance measurement information, including information from speed sensors, radars and accelerometers, etc., and combines the transponder information to realize the train positioning that meets the requirements of train operation control accuracy, safety and reliability.

[0073] On the basis of the ATO button, the vehicle cab is additionally provided with an automatic return button (or ATB button) and an indicator light to indicate the automatic return state and control the startup process of the automatic return.

[0074] The RBC is an important ground central device for realizing the function of moving block. The RBC generates control information such as train movement authority according to the information provided by devices such as TIS, TSRS, adjacent RBCs, the centralized train control system CTC and on-vehicle equipment, and combines the line parameters and other information stored inside the RBC, and sends it to the on-vehicle equipment through wireless communication to control the safe operation of the train. During the implementation of the automatic return function, the on-vehicle equipment should maintain the communication connection with the RBC in the SL mode; after the A end cancels the return activation signal sent to the vehicle and enters the SB mode, it disconnects the connection with the TSRS, but the on-vehicle equipment at the A end still maintains the connection with the RBC until the RBC actively initiates the disconnection; the driver presses the ATB button on the on-vehicle equipment at the A end, and sends a return packet to the RBC when the vehicle enters the automatic return state.

[0075] Finally, it should be noted that: Obviously, those skilled in the art can make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention also intends to include these modifications and variations.

[0076] The above is only one embodiment of the present invention, but it should not be used to limit the scope of the present invention. Any structural changes made in accordance with the present invention, as long as the essence of the present invention is not lost, should be regarded as falling within the protection scope of the present invention and being restricted. Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working process and related explanations of the above-described method can refer to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0077] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, so that a process, method, article or device / method comprising a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent in these processes, methods, articles or devices / methods.

[0078] So far, the technical solution of the present invention has been described in combination with the further embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present invention.

[0079] In summary, the above is only the preferred embodiment of the present invention, and is not used to limit the protection scope of the present invention. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A train automatic return control method based on moving block, characterized in that: The following steps are involved: Step 1: The on-board equipment issues a turnaround prompt to make the train run to the turnaround station. When the automatic turnaround conditions are met, the ATB button indicator on the driver's console flashes green. When the turnaround prompt is automatic turnaround after the station, execute step 2; when the turnaround prompt is automatic turnaround at the original location, execute step 3; Step 2: After the ATB button is pressed, the onboard equipment enters the station and automatically returns to the ready state, sends a return packet to the RBC to output a return activation signal, and the ATB button indicator light is always green; the train uses the return activation signal as an equivalent key to output the cab activation and the direction handle forward, and outputs a return activation feedback signal, and the DMI prompts that the driving console can be closed; the driving console closes the automatic return state after entering the station, and sends the information of entering the automatic return state to the TSRS; The on-board equipment receives the RBC driving permit and controls the train to automatically enter the reversing line and stop steadily and accurately when the operating conditions are met, and initiates the automatic end change; after the automatic end change is completed, the train drives out of the reversing line and stops steadily and accurately on the platform track; the door on the corresponding side is automatically opened, and the platform door is linked with the ground equipment. After the activation end driver's console key is activated, the driver's console automatic reversing button indicator light is turned off, completing the automatic reversing process after the station; Step 3: After the ATB button is pressed, the vehicle-mounted device enters the automatic return preparation state, sends a return packet to the RBC, outputs a return activation signal, and the ATB button indicator light is always green; The train uses the return activation signal as the equivalent key output to activate the cab and the direction handle forward, and outputs the return activation feedback signal. The DMI prompts that the driver's console can be closed; after the driver's console key is pulled out, it enters the automatic return state in place, and sends the information of entering the automatic return state in place to TSRS to initiate the end change; After the vehicle-mounted equipment inspection conditions of the original activated end A are met, the end is automatically switched; The on-board equipment at the original dormant end B outputs a valid return activation signal to the train; the on-board equipment at the A end enters the dormant mode and maintains the communication connection with the RBC; the key on the driving console at the B end is activated, and the indicator light of the automatic return button on the driving console goes out, completing the automatic return process on the spot.

2. The train automatic return control method according to claim 1, characterized in that: The automatic end-changing method in step 2 is: The original activated end A vehicle-mounted device sends a terminal switching request and related data to the original dormant end B vehicle-mounted device; the B vehicle-mounted device replies to the A vehicle-mounted device with a terminal switching request confirmation, and updates the DMI-related information and status information; The A-end onboard device cancels the return activation signal sent to the train, enters SB mode, and disconnects from TSRS. The A-end onboard device maintains the connection with RBC until RBC actively initiates disconnection; The vehicle-mounted equipment at the B end enters the SB mode from the SL mode and outputs the brake; The on-board equipment at the B end sends a return activation signal to the train, activates the driving console, and lights up the ATB button indicator on the driving console; the train sends a sleep signal to the on-board equipment at the A end, and the A end enters the SL mode and cancels the output brake at the same time. The on-board equipment at the A end maintains the connection with the RBC. After the RBC completes the confirmation of the head and tail screens at the B end, it actively initiates the disconnection of the A end; The B-end onboard device automatically completes the power-on registration in SB mode and sends the end change end information to TSRS; if the B-end onboard device starts to connect with RBC during automatic power-on registration, the key is inserted into the B-end onboard device, ATP cancels the return activation signal, collects the actual direction handle status of the train, and maintains the task startup process of RBC and the B-end onboard device.

3. The train automatic return control method according to claim 2, characterized in that: The information transmitted from the A-end onboard equipment to the B-end onboard equipment includes: train internal status information, TSRSID and TSRSIP address, train number after switching ends, train conductor, driver number, RBCID and RBCIP address, and stable and accurate stop; the information transmitted from the B-end onboard equipment to the A-end onboard equipment includes: vehicle internal status information, and the status of the B-end cab steering handle, traction and brake handle.

4. The train automatic return control method according to claim 1, characterized in that: The automatic end-changing method in step 3 is: The A-end vehicle-mounted device sends a terminal switching request and related data to the B-end vehicle-mounted device; the B-end vehicle-mounted device replies to the A-end vehicle-mounted device to confirm the terminal switching request and update the DMI related information and status information; The A-end onboard device cancels the return activation signal sent to the train and enters the SB mode, and disconnects from the TSRS. The A-end onboard device maintains the connection with the RBC until the RBC actively initiates the disconnection; The vehicle-mounted equipment at the B end enters the SB mode from the SL mode and outputs the brake; The on-board device at the B end sends a return activation signal to the train, activates the driving console, and lights up the ATB button indicator on the driving console; the train sends a sleep signal to the on-board device at the A end, and the on-board device at the A end enters the SL mode and cancels the output brake at the same time. The on-board device at the A end maintains the connection with the RBC. After the RBC completes the confirmation of the head and tail screen at the B end, it actively initiates the disconnection of the A end; The B-end on-board equipment automatically completes the power-on registration in SB mode and sends the end-change end information to TSRS; if the B-end on-board equipment and RBC start to connect during the automatic power-on registration, the B-end inserts the key, ATP cancels the return activation signal, collects the actual direction handle status of the train, and maintains the task startup process of RBC and B-end.

5. A train automatic return control system based on moving block, characterized in that: include: ATP on-board main control unit, ATO on-board main control unit, peripheral equipment, vehicle driving platform and vehicle-to-ground wireless communication radio station. The ATP on-board main control unit is connected to the ATO on-board main control unit through a serial port. When the on-board equipment is in the automatic driving AM mode, it will automatically turn back after the station and automatically turn back at the original position. Automatic turn-back on-board equipment is installed at both ends A and B of the train. The automatic turn-back on-board equipment at both ends of A and B realizes data exchange between the automatic turn-back on-board equipment at both ends through the head-to-tail through-cable. The A end is the service end before the station turns back, and the B end is the non-service end. The ATO on-board main control unit realizes the automatic return function under the protection of the ATP on-board main control unit, and communicates with the radio block center RBC and the temporary speed limit server TSRS in the area through the wireless communication radio. The RBC calculates the mobile block driving permit based on the information provided by the train control and interlocking integrated system TIS and the train position within the jurisdiction, and sends the driving permit, line parameters, temporary speed limit command and other information to the on-board equipment through the train-to-ground wireless communication; TSRS sends operation plan, station data, inter-station data and platform door status to the ATO on-board main control unit; the ATO on-board main control unit sends operation plan feedback, train operation status, and opening or closing of platform doors to TSRS.

6. The automatic train return control system according to claim 5, characterized in that: The peripheral equipment includes a track circuit receiving antenna, a transponder receiving antenna and a speed and distance measuring unit.

7. The automatic train return control system according to claim 5, characterized in that: The vehicle driving console includes an ATO start button, a DMI and an automatic return ATB button.

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