CN110104031B - Train control system degradation management system based on vehicle-to-vehicle communication - Google Patents
Train control system degradation management system based on vehicle-to-vehicle communication Download PDFInfo
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- CN110104031B CN110104031B CN201910318242.8A CN201910318242A CN110104031B CN 110104031 B CN110104031 B CN 110104031B CN 201910318242 A CN201910318242 A CN 201910318242A CN 110104031 B CN110104031 B CN 110104031B
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- 238000004891 communication Methods 0.000 title claims abstract description 64
- 230000015556 catabolic process Effects 0.000 title claims abstract description 21
- 238000006731 degradation reaction Methods 0.000 title claims abstract description 21
- 238000013475 authorization Methods 0.000 claims description 14
- 238000000034 method Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000003993 interaction Effects 0.000 description 3
- PLAIAIKZKCZEQF-UHFFFAOYSA-N methyl 6-chloro-2-oxo-3h-1,2$l^{4},3-benzodithiazole-4-carboxylate Chemical compound COC(=O)C1=CC(Cl)=CC2=C1NS(=O)S2 PLAIAIKZKCZEQF-UHFFFAOYSA-N 0.000 description 3
- 101000879675 Streptomyces lavendulae Subtilisin inhibitor-like protein 4 Proteins 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
- B61L27/20—Trackside control of safe travel of vehicle or train, e.g. braking curve calculation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L27/00—Central railway traffic control systems; Trackside control; Communication systems specially adapted therefor
- B61L27/20—Trackside control of safe travel of vehicle or train, e.g. braking curve calculation
- B61L2027/204—Trackside control of safe travel of vehicle or train, e.g. braking curve calculation using Communication-based Train Control [CBTC]
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- Train Traffic Observation, Control, And Security (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention relates to a train control system degradation management system based on vehicle-vehicle communication, which comprises a safety equipment trackside TKTC system, a safety equipment ID device and a safety equipment ID reader, wherein the safety equipment trackside TKTC system is respectively in communication connection with a vehicle-mounted CC, a safety equipment trackside TKIC, an ATS and the safety equipment ID reader, the safety equipment ID device is in communication connection with the safety equipment ID reader, and when the vehicle-mounted CC fails or the vehicle-ground wireless safety communication fails to degrade, the safety equipment trackside TKTC system replaces the vehicle-mounted CC to execute tasks. Compared with the prior art, the method can still maintain the normal operation of the fault train and other trains when the vehicle-mounted fault of the train control system based on the vehicle-vehicle communication degrades, and ensure the availability and the safety of the whole system.
Description
Technical Field
The invention relates to a rail transit signal system, in particular to a train control system degradation management system based on vehicle-to-vehicle communication.
Background
In a traditional CBTC (train automatic control system) signal system of urban rail transit, a position report is sent to a ZC (zone controller) beside a rail through active positioning of a vehicle-mounted CC (vehicle-mounted signal system) system, and the ZC calculates and provides movement authorization for each train according to the position report of each train and the state of equipment beside the rail. A new generation of CBTC signal system adopts a vehicle-vehicle communication-based mode, a vehicle-mounted system applies for line resources to a trackside target controller, the target controller distributes the line resources and informs the vehicle-mounted system, and on the basis, a train directly requests position information to a front vehicle to calculate self movement authorization. The train-to-train communication system can reduce the quantity of trackside equipment, simplify interface interaction between systems, and effectively improve the running interval, the turn-back interval and the intelligent control level of a train.
Because line resources are directly applied to the side of a track by a vehicle, the movement authorization of a rear vehicle needs the position of a train of a front vehicle, if the vehicle-mounted system fails or the wireless safety communication failure of the vehicle and the ground degrades, the resources cannot be distributed to the train, the rear vehicle cannot calculate the movement authorization, the operation of the front train and the rear train is blocked, the resources need to be manually intervened and distributed, and the availability of the system is influenced; this also presents a safety hazard to the operation of the train if line resources have been allocated to other trains and the faulty train is approaching the line resources.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a train-vehicle communication-based train control system degradation management system, which can maintain the normal operation of a fault train and other trains when the vehicle-mounted fault of the train-vehicle communication-based train control system degrades, and ensure the availability and the safety of the whole system.
The purpose of the invention can be realized by the following technical scheme:
a train control system degradation management system based on vehicle-to-vehicle communication is respectively in communication connection with a vehicle-mounted CC, a security device trackside TKIC and an ATS, and comprises a security device trackside TKTC system, a security device ID device and a security device ID reader, wherein the security device trackside TKTC system is respectively in communication connection with the vehicle-mounted CC, the security device trackside TKIC, the ATS and the security device ID reader, and the security device ID device is in communication connection with the security device ID reader;
when the vehicle-mounted CC fails or the wireless safety communication failure of the vehicle and the ground is degraded, the safety equipment trackside TKTC system replaces the vehicle-mounted CC to perform the following tasks:
transmitting train position information to the security device trackside TKIC through secure communication, and updating the train position in a secure manner according to the information transmitted by the security device ID reader;
applying line resources and releasing the line resources to TKIC beside the safety equipment rail through safety communication;
and receiving the train operation task of the ATS and feeding back the train operation state to the ATS.
Preferably, the safety equipment ID device is a safety equipment vehicle-mounted ID device, and the safety equipment ID reader is a safety equipment ground ID reader;
the safety equipment vehicle-mounted ID device is arranged on a train body, and train ID information is stored in the safety equipment vehicle-mounted ID device;
the safety equipment ground ID reader is installed on a ground track, when a train passes by, the safety equipment ground ID reader reads train ID information in the safety equipment vehicle-mounted ID device and sends the train ID information to the safety equipment trackside TKTC system through safety communication, and the safety equipment trackside TKTC system can calculate the position of the train according to the train ID and the position of the safety equipment ground ID reader.
Preferably, the safety equipment ID device is a safety equipment ground ID device, and the safety equipment ID reader is a safety equipment vehicle-mounted ID reader;
the safety equipment ground ID device is arranged on a ground track, and the ID information of the ground device is stored inside the safety equipment ground ID device;
the safety equipment vehicle-mounted ID reader is installed on a train body, when a train passes through the safety equipment ground ID device, ID information in the safety equipment ground ID device is read and sent to the safety equipment trackside TKTC system through the standby safety communication wireless channel, and the safety equipment trackside TKTC system is enabled to calculate the position of the train according to the train ID and the position of the safety equipment ground ID device.
Preferably, under the condition that the vehicle-mounted CC works normally, the vehicle-mounted CC applies for and releases line resources to the TKIC system, obtains mobile authorization through vehicle-to-vehicle communication, receives a train running task of the ATS, and feeds back a train running state to the ATS;
meanwhile, the security device trackside TKTC system receives train position information and train running state of the onboard CC and receives a message of the security device ID reader.
Preferably, when the vehicle-mounted CC failure degradation cannot send information to the trackside and other trains, the security device trackside TKTC system continuously maintains the running state and the train position of the failed train in combination with the last train position information of the failed train and the message sent by the security device ID reader, and applies and releases line resources to the security device TKIC system instead of the vehicle-mounted CC of the train, communicates with the front train to calculate the movement authorization, communicates with the rear train to provide the train position, receives the train running task of the ATS, and feeds back the train running state to the ATS, and at this time, the security device trackside TKTC serves as a virtual vehicle-mounted CC to perform the function of the vehicle-mounted CC external communication interface.
Preferably, after the failure of the onboard CC system is recovered, the trackside TKTC system of the security device stops replacing the onboard CC function and informs the onboard CC of the train position information, the train running state, the line resource application and release state that it last replaced, the onboard CC continues to apply and release line resources to the TKIC system of the security device, communicate with the front train to calculate the movement authorization, communicate with the rear train to provide the train position, and receive the train running task of the ATS, and feeds back the train running state to the ATS, and at this time, the trackside TKTC of the security device continues to serve as a degradation management system, receives the train position information and the train running state of the onboard CC, and receives the message of the ID reader of the security device.
Compared with the prior art, the invention has the following advantages:
1) when the vehicle-mounted CC system failure or the vehicle-ground wireless safety communication failure is degraded in the vehicle-to-vehicle communication system, the normal operation of a failed train and other trains can be maintained, and the availability and the safety of the whole system are maintained.
2) The security device trackside TKTC, the security device vehicle-mounted ID device and the security device ground ID reader are not similar to a traditional regional control device, but are virtual vehicle-mounted CC controllers, do not participate in train control when a faultless train is in use, and have no influence on normal operation of the system.
Drawings
FIG. 1 is a block diagram of a conventional vehicle-to-vehicle communication system of the present invention;
FIG. 2 is a block diagram of a vehicle-to-vehicle communication degradation management system of the present invention;
FIG. 3 is a flow chart of the operation of the security device TKTC system of the present invention;
FIG. 4 is a schematic diagram of vehicle-to-vehicle communications under normal conditions of the present invention;
FIG. 5 is a schematic diagram of vehicle-to-vehicle communication in the event of a vehicle-mounted fault in accordance with the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, shall fall within the scope of protection of the present invention.
The present invention is directed to a signal system to which vehicle-to-vehicle communication is applied, and which can be applied to signal systems of other modes such as a CBTC system, a CTCS system, an ETCS system, a PTC system, and an ITCS system, and therefore the claims of the present invention are equally applicable to these systems and systems similar thereto. After the train becomes a non-communication train due to the fault of the train-mounted system or the fault of train-ground wireless communication, the signal system maintains the normal operation of the system and the interaction of state information and control commands through the method, so that the normal operation of public transport operation is maintained.
The existing vehicle-vehicle communication signal system structure is shown in fig. 1, on the basis, the invention adds a vehicle-vehicle communication degradation management system which meets the principle of fault-oriented safety and reaches the safety integrity level of SIL4, and the device mainly comprises a safety device trackside TKTC system, a safety device ID device and a safety device ID reader.
The security device ID device and the security device ID reader have two implementation modes:
1) safety equipment vehicle-mounted ID device and safety equipment ground ID reader
The safety equipment vehicle-mounted ID device: the train ID information storage device is installed on a train body, belongs to passive equipment and internally stores train ID information.
The security device ground ID reader: and the ground ID reader reads the train ID information in the vehicle-mounted ID device when the train passes by, and sends the train ID information to the trackside TKTC through safe communication, so that the trackside TKTC can estimate the train position according to the train ID and the position of the ground ID reader.
2) Safety equipment ground ID device and safety equipment vehicle-mounted ID reader
The safety equipment ground ID device: the device is installed on a ground track, belongs to passive equipment, and internally stores the ID information of a ground device.
The safety device in-vehicle ID reader: and the system is arranged on the train body, when the train passes through the ground ID device, the ID information in the ground ID device is read and sent to the trackside TKTC through the standby safe communication wireless channel, so that the trackside TKTC can estimate the train position according to the train ID and the ground ID device position.
The two implementation modes can enable the TKTC beside the safety equipment rail to calculate the position of the train in a safe mode, and the function of a degradation management system and the running safety of the train are achieved. Therefore, both implementations are within the scope of this patent, and the present invention will be described by way of example in mode 1) (i.e., the security device on-board ID device and the security device ground ID reader).
The safety equipment trackside TKTC is a safety related device, meets the safety integrity level of SIL4, receives train position information sent by each vehicle-mounted CC (the information is consistent with the information sent to the trackside TKIC by the vehicle-mounted CC) through safety communication under the normal condition of the system, receives the information of a safety equipment ground ID reader through safety communication, stores the position of each safety equipment ground ID reader on a line in the safety equipment trackside TKTC, and continuously calculates and maintains the train position by combining the information. Because the security device trackside TKTC has this information, when the onboard CC fails down, the security device trackside TKTC can perform the following tasks instead of the onboard CC:
transmitting train position information to the security device trackside TKIC through security communication, and updating the train position in a secure manner according to the information transmitted by the security device vehicle-mounted ID reader;
applying line resources and releasing the line resources to TKIC beside the safety equipment rail through safety communication;
and receiving the train operation task of the ATS and feeding back the train operation state to the ATS.
The working flow of the method and the device for the security device trackside TKTC is described as follows:
1) under the condition that the vehicle-mounted CC system works normally, the vehicle-mounted CC applies for and releases line resources to the TKIC system, obtains mobile authorization through vehicle-to-vehicle communication, receives train running tasks of the ATS, and feeds back a train running state to the ATS.
2) Meanwhile, the degradation management system collects train messages, i.e., the security device trackside TKTC system receives train position information and train operation state of the on-board CC system, and receives messages of the security device ground ID reader.
3) When the vehicle-mounted CC system is degraded in fault and cannot send information to the trackside and other trains, the safety equipment trackside TKTC system continuously maintains the running state and the train position of the fault train by combining the last train position information of the fault train and the information sent by the safety equipment ground ID reader, applies and releases line resources to the safety equipment TKIC system instead of the train, communicates with the front train to calculate the movement authorization, communicates with the rear train to provide the position of the train, receives the train running task of the ATS and feeds back the running state of the train to the ATS. At the moment, the TKTC beside the safety equipment rail serves as a virtual vehicle-mounted CC system and executes the external communication interface function of the vehicle-mounted CC system.
4) When the failure of the vehicle-mounted CC system is recovered, the security device trackside TKTC system stops replacing the function of the vehicle-mounted CC system, informs the vehicle-mounted CC of the train position information, the train running state, the line resource application and release state which are sent by the vehicle-mounted CC system in a last replacing mode, and the vehicle-mounted CC system continues to apply and release line resources to the security device TKIC system, carries out forward train communication to calculate the movement authorization, carries out backward train communication to provide the position of the train, receives the train running task of the ATS and feeds back the train running state to the ATS. The security device trackside TKTC continues to function as a degradation management system at this time, receives train position information and train operation state of the on-board CC system, and receives a message of the security device ground ID reader.
By the method and the device, when the vehicle-mounted CC system fails or the vehicle-ground wireless communication failure degrades (can be a single train or a plurality of trains) in the vehicle-to-vehicle communication system, the degradation management system is used for replacing the failed vehicle-mounted CC system, and the operation of a train control system and the normal operation of a line are maintained.
On the basis of a conventional train-vehicle communication signal system, a safety device TKTC system is additionally arranged in a trackside equipment room, a safety device vehicle-mounted ID device is additionally arranged on a train body, and a safety device ground ID reader is additionally arranged on the ground. The system architecture is shown in fig. 2.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
The vehicle-to-vehicle communication degradation management system only receives the vehicle-mounted information and the ground ID reader information when all vehicle-mounted systems work normally, and does not participate in train control.
Normally, as shown in fig. 4, the onboard CCs 1, 2 and 3 communicate two by two, send the train position, calculate the movement authorization from the front train position, apply for and release line resources from the security device TKIC according to the train plan.
When the on-board CC2 malfunctions, as shown in fig. 5, the security device TKTC maintains the train information of CC2 according to the last train information of CC2 and the train position fed back by the ground ID reader, and communicates to CC1 and CC3 instead of CC2, and communicates to the security devices TKIC and ATS instead of CC 2. In this case, although the real CC2 has failed, all signaling devices that need to communicate with the CC2 can still keep normal communication and information interaction with the virtual CC2 due to the existence of the security device TKTC, and all computation logic is unchanged.
While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. A train control system degradation management system based on vehicle-vehicle communication is respectively in communication connection with a vehicle-mounted CC, a security device trackside TKIC and an ATS, and is characterized in that the management system comprises a security device trackside TKTC system, a security device ID device and a security device ID reader, the security device trackside TKTC system is respectively in communication connection with the vehicle-mounted CC, the security device trackside TKIC, the ATS and the security device ID reader, and the security device ID device is in communication connection with the security device ID reader;
when the vehicle-mounted CC fails or the wireless safety communication failure of the vehicle and the ground is degraded, the safety equipment trackside TKTC system replaces the vehicle-mounted CC to perform the following tasks:
transmitting train position information to the security device trackside TKIC through secure communication, and updating the train position in a secure manner according to the information transmitted by the security device ID reader;
applying line resources and releasing the line resources to TKIC beside the safety equipment rail through safety communication;
and receiving the train operation task of the ATS and feeding back the train operation state to the ATS.
2. The train control system degradation management system based on vehicle-to-vehicle communication of claim 1, wherein the security device ID device is a security device vehicle ID device, and the security device ID reader is a security device ground ID reader;
the safety equipment vehicle-mounted ID device is arranged on a train body, and train ID information is stored in the safety equipment vehicle-mounted ID device;
the safety equipment ground ID reader is installed on a ground track, when a train passes by, the safety equipment ground ID reader reads train ID information in the safety equipment vehicle-mounted ID device and sends the train ID information to the safety equipment trackside TKTC system through safety communication, and the safety equipment trackside TKTC system can calculate the position of the train according to the train ID and the position of the safety equipment ground ID reader.
3. The train control system degradation management system based on vehicle-to-vehicle communication of claim 1, wherein the safety device ID device is a safety device ground ID device, and the safety device ID reader is a safety device vehicle-mounted ID reader;
the safety equipment ground ID device is arranged on a ground track, and the ID information of the ground device is stored inside the safety equipment ground ID device;
the safety equipment vehicle-mounted ID reader is installed on a train body, when a train passes through the safety equipment ground ID device, ID information in the safety equipment ground ID device is read and sent to the safety equipment trackside TKTC system through the standby safety communication wireless channel, and the safety equipment trackside TKTC system is enabled to calculate the position of the train according to the train ID and the position of the safety equipment ground ID device.
4. The train control system degradation management system based on vehicle-to-vehicle communication of claim 1, wherein under normal operation of the vehicle-mounted CC, the vehicle-mounted CC applies for and releases line resources from a security device trackside TKIC system, obtains mobile authorization through vehicle-to-vehicle communication, receives train operation tasks of an ATS, and feeds back train operation states to the ATS;
meanwhile, the security device trackside TKTC system receives train position information and train running state of the onboard CC and receives a message of the security device ID reader.
5. The system of claim 1, wherein when the CC failure degradation cannot send information to the trackside and other trains, the TKTC system continues to maintain the operation status and train position of the failed train in combination with the last train position information of the failed train and the message sent by the ID reader, and applies and releases line resources to the TKIC system in place of the CC of the train, communicates with the front train to calculate the movement authorization, communicates with the rear train to provide the train position, receives train operation tasks of the ATS, and feeds back the train operation status to the ATS, and at this time, the TKTC system in place of the CC performs the CC external communication interface function as a virtual CC.
6. The system of claim 1, wherein after the CC system is recovered from a failure, the TKTC system on the train side stops replacing the CC function, informs the CC that it is finally replaced by the transmitted train position information, train running status, line resource application and release status, and continues to apply and release line resources to the TKIC system on the train side, communicate to the front train to calculate the movement authorization, communicate to the rear train to provide the train position, receive the train running task of the ATS, and feed back the train running status to the ATS, while continuing to serve as the degradation management system, receive the train position information and train running status of the CC, and receive the message of the ID reader of the security device.
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| CN201910318242.8A CN110104031B (en) | 2019-04-19 | 2019-04-19 | Train control system degradation management system based on vehicle-to-vehicle communication |
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| CN201910318242.8A CN110104031B (en) | 2019-04-19 | 2019-04-19 | Train control system degradation management system based on vehicle-to-vehicle communication |
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| CN110104031B true CN110104031B (en) | 2021-06-08 |
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| CN111204364B (en) * | 2020-01-15 | 2022-11-01 | 卡斯柯信号有限公司 | Trackside resource release method based on train actual positioning |
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| CN112061182B (en) * | 2020-08-25 | 2022-06-17 | 通号城市轨道交通技术有限公司 | Train management method and device based on vehicle-vehicle communication |
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| CN113264086B (en) * | 2021-06-08 | 2022-08-26 | 卡斯柯信号有限公司 | Train interval protection control method and device based on TACS (train operating System) |
| CN113335347B (en) * | 2021-06-18 | 2022-08-26 | 卡斯柯信号有限公司 | Degraded vehicle operation management method and device for TACS (train operation control System) |
| CN113548098A (en) * | 2021-07-28 | 2021-10-26 | 通号城市轨道交通技术有限公司 | Train degradation management method and device and storage medium |
| CN114261433B (en) * | 2021-12-07 | 2023-11-14 | 浙江众合科技股份有限公司 | Multi-functional resource target controller |
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