CN113247055A - Tramcar signal control system based on distributed target control - Google Patents
Tramcar signal control system based on distributed target control Download PDFInfo
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- CN113247055A CN113247055A CN202110596653.0A CN202110596653A CN113247055A CN 113247055 A CN113247055 A CN 113247055A CN 202110596653 A CN202110596653 A CN 202110596653A CN 113247055 A CN113247055 A CN 113247055A
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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
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Abstract
The embodiment of the disclosure provides a tram signal control system based on distributed target control, belongs to the technical field of intelligent equipment, and this system includes: the system comprises a control center operation scheduling module, a turnout control module and an intersection priority control module, wherein the control center operation scheduling module decomposes a day shift plan into stage plans, decomposes and issues the plans within a period of time to the corresponding turnout control module and/or intersection priority control module at one time, the turnout control module and the intersection priority control module are provided with storage functions, and execution commands are judged through self-storage and information acquisition. Through the processing scheme of the present disclosure, the tramcar can be controlled based on the distributed controller, and the safety of tramcar operation is improved.
Description
Technical Field
The utility model relates to an intelligent device technical field especially relates to a tram signal control system based on distributed target control.
Background
At present, a tramcar signal control system basically continues to use the scheme of an urban rail transit signal system for reference, and mainly comprises a control center operation scheduling module, a main line turnout control module, an intersection priority control module and a vehicle-mounted module. The control center operation scheduling module mainly realizes scheduling command functions such as planning, operation monitoring, route control and the like, the main turnout control module and the intersection priority control module realize control of signal equipment such as main turnout, intersection equipment and the like, and the vehicle-mounted module only provides basic driving auxiliary functions for drivers after simplification and does not provide safety functions such as train operation protection and the like any more.
In the prior art, two design ideas are mainly adopted, namely a tramcar signal control system is constructed around a control center operation scheduling module as a core.
In the first scheme, the control center operation scheduling module compiles a day shift operation plan, decomposes the plan according to a train operation line, then issues the plan to each train, and provides the plan for a driver to serve as a reference for driving the train through a vehicle-mounted display screen. After a train enters a main track from a train section field, a control center operation scheduling module monitors and tracks the position of the train in real time according to the position of the train provided by a vehicle-mounted module and the state of main track signal equipment provided by a main track turnout control module, issues turnout control commands to the main track turnout control module according to the states of the running position, the speed and the like of the train, and the main track turnout control module executes the turnout control commands according to the central commands to open a front route for the train; the control center operation scheduling module issues a crossing priority passing request to the crossing priority control module and requests the municipal traffic signal control module for the train to pass the crossing preferentially. When the conditions such as late point and the like occur in operation, the train operation plan is adjusted through the control center operation scheduling module, the adjustment is transmitted to the vehicle-mounted control module for reference, and a specific control command is transmitted to the main line turnout control module and the intersection priority control module from the center.
And the second scheme is that a tramcar signal control system is constructed around the vehicle-mounted control module as a core.
In the second scheme, the control center operation scheduling module compiles a day shift operation plan, decomposes the plan according to the train operation line and then sends the plan to each train. The train-mounted module monitors and tracks the position of the train in real time, and issues a turnout control command to the main turnout control module according to the running position, speed and other states of the train, and the main turnout control module executes according to the train-mounted command to open a front access for the train; the vehicle-mounted module sends a crossing priority passing request to the crossing priority control module and requests the municipal traffic signal control module for the train to pass the crossing preferentially. When the conditions such as late point and the like occur in operation, the train operation plan is adjusted through the control center operation scheduling module, the adjustment is sent to the vehicle-mounted control module, and the specific control command is sent to the main line turnout control module and the intersection priority control module through the vehicle-mounted module.
In the first scheme, the tramcar signal control system is constructed around the control center operation scheduling module as a core, and the tramcar signal control system has the advantages that the hardware equipment performance of the control center operation scheduling module is high, rapid calculation can be achieved, various calculations of the system are processed, meanwhile, the control center operation scheduling module contains complete information of states of various equipment of the system, operation can be scheduled from the global angle, and the system architecture is relatively simple.
However, in the first scheme, the control center is seriously depended on to operate the scheduling module, and the real-time operation scheduling control instruction is issued by the center calculation, so that the dependence on the communication transmission system is large, once the control center operates the scheduling module or the communication transmission system and fails, the whole system cannot normally operate, the robustness and the reliability of the system are low, and the influence degree is large.
In the second scheme, a tramcar signal control system is constructed around the vehicle-mounted control module as a core. The method has the advantages that the dependence on the control center operation scheduling module is reduced, the scheduling control function is dispersed to each train to be executed, and the influence caused by the fault of the control center operation scheduling module is reduced.
However, the second scheme also has some disadvantages, firstly, some control instructions are added to the vehicle-mounted module to issue functional requirements, and calculation requirements of the vehicle-mounted module are added, but the computing capability of the vehicle-mounted module device is relatively weak, and the vehicle-mounted module only grasps the running state of the train, does not grasp the states of other trains and devices, and cannot achieve global consideration. Secondly, the communication between the vehicle-mounted module and the trackside system is mainly realized through a vehicle-ground wireless communication system, and no matter the vehicle-ground wireless communication is based on LTE, WIFI or 4G, the problems that the communication quality stability is relatively poor compared with backbone communication such as optical fibers and the like exist. In addition, the fault of the vehicle-mounted module has a large influence on the normal operation of the system, and the scheme has a certain influence on the overall construction cost of the system.
Disclosure of Invention
In view of the above, the embodiments of the present disclosure provide a tram signal control system based on distributed target control, which at least partially solves the problems in the prior art.
The embodiment of the present disclosure provides a tramcar signal control system based on distributed target control, including:
the control center operation scheduling module comprises a database server, an application server, a communication server and a dispatcher workstation and is used for realizing planning, operation scheduling monitoring, operation adjustment and information exchange with other systems;
the turnout control module comprises a turnout control module, a switch machine, position checking equipment and a route indicator and is used for controlling and managing different running routes of the train;
the intersection priority control module comprises an intersection priority control module, position checking equipment and an intersection indicator, and is used for detecting the approaching, occupying and leaving information of a train passing through a level crossing, sending an intersection state to the central operation scheduling system, and requesting to open an intersection priority control signal to the municipal traffic signal control system according to the commands of the central operation scheduling system and the vehicle-mounted system;
the control center operation scheduling module decomposes the day shift plan into stage plans, decomposes and issues plans within a period of time to the corresponding turnout control module and/or intersection priority control module at one time, the turnout control module and the intersection priority control module are provided with storage functions, and execution commands are judged through self-storage and information acquisition, so that the operation of the tramcar is independently controlled based on operation instructions which are stored in the turnout control module and the intersection priority control module and are sent in advance by the control center operation scheduling module.
According to a specific implementation manner of the embodiment of the present disclosure, the control system further includes:
the vehicle-mounted module equipment is installed on the tramcar, calculates the speed and the position of the train in real time, sends the speed and the position to the operation scheduling module of the control center in real time, receives information sent by the center and displays the information through the vehicle-mounted display terminal.
According to a specific implementation manner of the embodiment of the disclosure, the control center operation scheduling module decomposes the stage plan according to the jurisdiction range of each turnout control module of the trackside turnout control module, generates a turnout control module command execution queue for each turnout control module, and sends the turnout control module command execution queue to the corresponding turnout control module through the communication transmission system.
According to a specific implementation mode of the embodiment of the disclosure, a control center operation scheduling module decomposes a stage plan according to the administration range of an intersection priority control module, generates an intersection priority control module command execution time queue for each intersection, and sends the intersection priority control module command execution time queue to the corresponding intersection priority control module through a communication transmission system;
and the control center operation scheduling module receives the operation condition in real time, converts the stage plan into the actual performance and generates the stage plan of the next stage according to the time range according to the actual performance.
According to a specific implementation manner of the embodiment of the disclosure, the position checking device of the trackside turnout control module adopts one or a combination of several of a label, a transponder and an induction loop to realize train occupancy detection, when a train enters a preset distance range of the position checking device, the position checking device interacts with the train to acquire information of a train group number, a train number and a destination number from the train.
According to a specific implementation manner of the embodiment of the disclosure, the trackside turnout control module comprises 3 sets of position checking equipment for realizing the advance notice, occupation and clear detection of the turnout area where the train enters.
According to a specific implementation manner of the embodiment of the disclosure, when the forecast detection device of the trackside turnout control module detects that a train occupies the area, the information of the train number, the train number and the destination number sent by the train is obtained, compared with the information of the train number and the train group number in the command execution queue of the turnout control module, and executed according to the command queue after the comparison is consistent.
According to a specific implementation mode of the embodiment of the disclosure, after a train runs to a route indicator in a turnout area and a route direction is confirmed to be consistent with a plan, the train is driven to enter the turnout area, an occupation detection device of a trackside turnout control module detects that the train occupies the turnout area, and the turnout control module performs locking protection on the turnout.
According to a specific implementation mode of the embodiment of the disclosure, a forenotice detection device is arranged at a position a certain distance in front of a crossing indicator in a level crossing area and used for triggering a priority request of passing through the front level crossing, so that the condition that a train is decelerated and stopped due to untimely opening of the crossing indicator is avoided, and the condition that the train can not be decelerated and pass through the level crossing area under normal conditions is ensured;
and an occupation detection device is arranged at the position of the crossing indicator in the level crossing region and used for detecting whether the train enters the level crossing region or not and preventing the train from completely passing through the level crossing and closing a crossing signal machine due to a municipal traffic signal control module.
According to a specific implementation mode of the embodiment of the disclosure, a train leaves a level crossing area, clear detection equipment of a crossing priority control module detects that the train leaves the level crossing area clearly, and the crossing priority control module sends a message to a municipal traffic signal control module to release road resources of the level crossing.
The tramcar signal control system based on distributed target control in the embodiment of the disclosure includes: the control center operation scheduling module comprises a database server, an application server, a communication server and a dispatcher workstation and is used for realizing planning, operation scheduling monitoring, operation adjustment and information exchange with other systems; the turnout control module comprises a turnout control module, a switch machine, position checking equipment and a route indicator and is used for controlling and managing different running routes of the train; the intersection priority control module comprises an intersection priority control module, position checking equipment and an intersection indicator, and is used for detecting the approaching, occupying and leaving information of a train passing through a level crossing, sending an intersection state to the central operation scheduling system, and requesting to open an intersection priority control signal to the municipal traffic signal control system according to the commands of the central operation scheduling system and the vehicle-mounted system; the control center operation scheduling module decomposes the day shift plan into stage plans, decomposes and issues plans within a period of time to the corresponding turnout control module and/or intersection priority control module at one time, the turnout control module and the intersection priority control module are provided with storage functions, and execution commands are judged through self-storage and information acquisition, so that the operation of the tramcar is independently controlled based on operation instructions which are stored in the turnout control module and the intersection priority control module and are sent in advance by the control center operation scheduling module. Through the processing scheme disclosed by the invention, the safety of tramcar dispatching is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings needed to be used in the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present disclosure, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a tramcar signal control system based on distributed target control according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a switch control module according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of an intersection priority control module according to an embodiment of the present disclosure.
Detailed Description
The embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.
The embodiments of the present disclosure are described below with specific examples, and other advantages and effects of the present disclosure will be readily apparent to those skilled in the art from the disclosure in the specification. It is to be understood that the described embodiments are merely illustrative of some, and not restrictive, of the embodiments of the disclosure. The disclosure may be embodied or carried out in various other specific embodiments, and various modifications and changes may be made in the details within the description without departing from the spirit of the disclosure. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
It is noted that various aspects of the embodiments are described below within the scope of the appended claims. It should be apparent that the aspects described herein may be embodied in a wide variety of forms and that any specific structure and/or function described herein is merely illustrative. Based on the disclosure, one skilled in the art should appreciate that one aspect described herein may be implemented independently of any other aspects and that two or more of these aspects may be combined in various ways. For example, an apparatus may be implemented and/or a method practiced using any number of the aspects set forth herein. Additionally, such an apparatus may be implemented and/or such a method may be practiced using other structure and/or functionality in addition to one or more of the aspects set forth herein.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present disclosure, and the drawings only show the components related to the present disclosure rather than the number, shape and size of the components in actual implementation, and the type, amount and ratio of the components in actual implementation may be changed arbitrarily, and the layout of the components may be more complicated.
In addition, in the following description, specific details are provided to facilitate a thorough understanding of the examples. However, it will be understood by those skilled in the art that the aspects may be practiced without these specific details.
Referring to fig. 1, the tramcar signal control system in the embodiment of the invention is composed of a control center operation scheduling module, a trackside turnout control module, a trackside intersection priority control module, a vehicle-mounted module and a communication transmission system.
The control center operation scheduling module mainly comprises core equipment such as a database server, an application server, a communication server, a dispatcher workstation and the like, and realizes planning, operation scheduling monitoring, operation adjustment, information exchange with other systems and the like.
The turnout control module mainly comprises a turnout controller, a point switch, position checking equipment, a route indicator and the like, and realizes control and management of different running routes of a train.
The intersection priority control module mainly comprises an intersection priority controller, a position checking device, an intersection indicator and the like, realizes the detection of the approaching, occupying and leaving information of a train passing through a level crossing, sends an intersection state to the control center operation scheduling module, and requests the municipal traffic signal control module to open an intersection priority control signal according to the commands of the control center operation scheduling module and the vehicle-mounted module.
The train-mounted module arranged on the tramcar comprises a train-mounted display terminal, train positioning equipment, speed detection equipment, train-ground wireless communication equipment and the like, calculates the speed and the position of the train in real time, sends the speed and the position to the operation scheduling module of the control center in real time, receives information sent by the center, and displays the information to a driver through the vehicle-mounted display terminal; the communication system realizes wireless communication between trains, between trains and centers and local area network communication between related systems.
In the invention, the control center operation scheduling module carries out stage decomposition on the day-to-day schedule according to a time range (such as 3 hours) to generate a stage schedule within a certain time range.
Furthermore, the control center operation scheduling module decomposes the stage plan according to the administration range of each turnout control module of the trackside turnout control module, generates a turnout control module command execution queue for each turnout control module, and sends the turnout control module command execution queue to the corresponding turnout control module through the communication transmission system. The command execution queue comprises command execution time, corresponding train number, train set number, command execution content and the like.
Meanwhile, the control center operation scheduling module decomposes the stage plan according to the administration range of each intersection priority control module of the rail bypass intersection priority control module, generates an intersection priority control module command execution time queue for each intersection, and sends the intersection priority control module command execution time queue to the corresponding intersection priority control module through the communication transmission system. The command execution queue comprises command execution time, corresponding train number, train set number, command execution content and the like.
Meanwhile, the control center operation scheduling module decomposes the phase plan according to the train number occupied by the train, generates schedule information of the train number occupied by the train, and sends the schedule information to the vehicle-mounted module of the corresponding train through a communication transmission system. The schedule information mainly includes train number, train group number, arrival and departure time of each station, and the like.
Furthermore, the control center operation scheduling module receives operation conditions such as the on-site signal equipment state, the train operation state and the like in real time, converts the stage plan into actual results, and generates the stage plan of the next stage according to the operation actual results and the time range (such as 3 hours).
Further, when the operation is late and needs to be adjusted, the dispatcher can adjust the phase plan through the control center operation dispatching module dispatcher workstation, update the phase plan according to the time range, and send the phase plan to the turnout control module, the intersection priority control module and the vehicle-mounted module through the communication transmission system.
And the switch control module of the trackside switch control module increases a command execution queue storage function, and the target controller receives command execution queues issued by the operation scheduling module of the control center in stages.
The position checking equipment of the trackside turnout control module can adopt one or a combination of a plurality of equipment such as a label, a transponder, an induction loop and the like to realize train occupation detection, when a train enters a certain distance range of the position detecting equipment, the position checking equipment and the train are interacted, and train operation information such as a train group number, a train number, a destination number and the like is obtained from the train.
Generally, 3 sets of position checking equipment are arranged for realizing forecast, occupation and clear detection of a turnout area where a train enters, and the arrangement position is shown in fig. 2. A forenotice detection device and a position checking device 1 in the figure 2 are arranged at a position with a certain distance in front of a route indicator in a turnout area and used for triggering the arrangement of train routes, and the position checking device 1 needs to comprehensively consider various factors such as line conditions, train operation speed limit and the like, so that the condition that the routes are not opened timely to cause the deceleration and stop of a train is avoided, and the train can pass through a turnout area without deceleration under the normal condition.
And an occupation detection device is arranged at the position of the route indicator in the turnout area, and a position detection device 2 in the turnout area is used for detecting whether the train enters the turnout area or not and providing guarantee for the safety protection of the turnout control module.
Clear check out test set, position check out test set 3 in figure 2, set up a certain distance in switch region the place ahead for whether detect the train completely go out clear switch district, provide the guarantee for switch control module is to the clear play in switch region.
When the pre-notice detection equipment of the trackside turnout control module detects that the train occupies, the train operation information such as the train number, the train number and the destination number sent by the train is obtained, the train operation information is compared with the information such as the train number and the train group number in the turnout control module command execution queue, and the train operation information is executed according to the command queue after the comparison is consistent.
Further, the train inevitably has an early or late situation during operation, so that when the switch control module compares the command execution queue with the information acquired by the forecast detection device, the switch control module does not strictly limit the command plan execution time, that is, when the command execution queue time differs from the current time within a certain time range, only log recording is performed and the command execution queue time is sent to the control center operation scheduling module in real time.
Furthermore, in order to avoid the overlarge difference between the command execution queue and the actual command execution queue caused by the long-time delay or the operation disorder of a part of trains, the phase plan needs to be updated by the control center operation scheduling module after the long-time delay or the operation disorder of the trains.
And (3) driving the train to enter the turnout area after a driver drives the train to run in front of the route indicator in the turnout area and manually confirms that the route direction is consistent with the plan. The occupation detection equipment of the trackside turnout control module detects that the train occupies a turnout area, and the turnout control module locks and protects the turnout to ensure safety.
When the train leaves the turnout area, clear detection equipment of the trackside turnout control module detects that the train leaves the turnout area clearly, and the turnout control module releases turnout resources.
And similarly, the intersection priority control module of the intersection priority control module increases a command execution queue storage function, and the target controller receives command execution queues issued by the operation scheduling module of the control center in a staged manner.
The position checking equipment of the intersection priority control module can adopt one or a combination of a plurality of kinds of equipment such as a label, a transponder, an induction loop and the like to realize train occupation detection, and when a train enters a certain distance range of the position detecting equipment, the position checking equipment interacts with the train to obtain train running information such as a train group number, a train number, a destination number and the like.
Generally, 3 sets of position checking equipment are arranged for realizing the advance notice, occupation and clear detection of a level crossing area where a train enters, and the arrangement position is shown in fig. 3.
A forenotice detection device is arranged at a position a certain distance in front of a crossing indicator in a level crossing area, a position checking device 1 in a graph 3 is used for triggering a priority request for passing through the front level crossing, and the position checking device 1 is arranged by comprehensively considering various factors such as line conditions, train operation speed limit and the like, so that the condition that the crossing indicator is opened and the train is decelerated and stopped is avoided, and the train can not be decelerated and pass through the level crossing area under normal conditions.
The position of the crossing indicator in the level crossing region is provided with an occupation detection device, and the position detection device 2 in the figure 3 is used for detecting whether a train enters the level crossing region or not, so that potential safety hazards caused by the fact that the train does not completely pass through the level crossing and a municipal traffic signal control module closes a crossing signal machine too early are avoided.
The clear detection device is arranged in front of the level crossing area at a certain distance, and the position detection device 3 in the figure 3 is used for detecting whether the train completely passes through the level crossing area or not, so that road resource occupation caused by that the train completely passes through the level crossing and the municipal traffic signal control module does not perform phase conversion all the time is avoided.
When the advance notice detection equipment of the intersection priority control module detects that the train occupies, the train running information such as train group number and train number sent by the train is obtained, the train running information is compared with the information such as train number and train group number in the command execution queue of the intersection priority control module, and the train running information and the train number are executed according to the command queue after the comparison is consistent.
Further, the train inevitably has an early or late situation during operation, so that when the intersection priority control module compares the command execution queue with the information acquired by the advance notice detection device, the scheduled execution time of the command is not strictly limited, that is, when the command execution queue time differs from the current time within a certain time range, only log recording is performed and the command is sent to the control center operation scheduling module in real time.
Furthermore, in order to avoid the overlarge difference between the command execution queue and the actual command execution queue caused by the long-time delay or the operation disorder of a part of trains, the phase plan needs to be updated by the control center operation scheduling module after the long-time delay or the operation disorder of the trains.
And driving the train to pass through the level crossing region according to the crossing indicator before the driver drives the train to run to the crossing indicator in the level crossing region. The intersection priority control module is used for carrying out occupation protection on the level crossing to ensure safety.
The driver drives the train to leave the level crossing area, the clear detection device of the crossing priority control module detects that the train is clear in the level crossing area, and the crossing priority control module sends a message to the municipal traffic signal control module to release road resources of the level crossing.
And similarly, the vehicle-mounted module stores a train timetable, receives the timetable issued by the control center operation scheduling module in a staged manner, displays the timetable at a vehicle-mounted display terminal and provides assistance for a driver to drive the train.
In a tramcar signal control system, a trackside turnout control module is a system with the highest safety integrity level and is also the key for ensuring the safe operation of the tramcar. The invention provides a tramcar signal control system and method based on distributed target control.
The invention decomposes the day-shift plan of the control center operation scheduling module into stage plans, decomposes and issues the plans within a period of time to the corresponding target controller at one time, reduces the communication real-time requirement caused by the fact that the communication transmission system needs to send commands, plans and the like in real time in the prior art, reduces the dependence on the control center operation scheduling module and the communication transmission system, and does not influence normal operation due to short-time system fault or communication real-time reduction.
The control center operation scheduling module collects information such as the operation state of the main track trackside equipment and the train in real time, provides global monitoring for a dispatcher, facilitates the dispatcher to carry out optimization and adjustment on operation from the whole line, and can realize adjustment in a phase plan updating mode. The control separation scheme for real-time acquisition of the equipment state is planned to be issued in stages, namely the system structure is simplified, the limitations of single-train single-point optimization, limited computing resources and unstable train-ground wireless communication when a tramcar signal control system is built around the vehicle-mounted control module as a core in the scheme II are avoided, and the problem that the control center operation scheduling module is excessively depended on when the control center operation scheduling module is used as the core in the scheme I is also avoided.
The invention properly strengthens the storage functions of the turnout control module and the intersection priority control module, judges and executes commands by self-storing and collecting information, disperses central centralized calculation control to a plurality of target controllers beside the rail and reduces the influence range of single-point faults on system operation.
Furthermore, the turnout control module and the intersection priority control module are both high-safety-integrity-level systems, the added autonomous control functions such as storage, comparison and the like are simple, the existing computing resources can completely meet the functional requirements, and the turnout control module has the characteristics of high redundancy, high safety and the like, disperses the autonomous control functions to the target controller with high safety integrity and can provide better guarantee for the safety of the system.
The invention adopts the position checking equipment supporting the train-ground two-way communication to realize the information interaction of the train-mounted module, the trackside turnout control module and the intersection priority control module, can well avoid the problems of low train positioning precision and unstable train-ground wireless communication, and provides guarantee for the distributed target control provided by the invention through accurate positioning and stable communication connection.
The tramcar signal control system is constructed by taking a target controller with high safety integrity level scattered beside a rail as a core, a day shift plan is decomposed into a stage meter divided batch control range and issued to each target controller, the target controller stores an autonomous control scheme of stage plan, comparison check and automatic execution, a control center operation scheduling module provides a global scheduling coordination function and updates the global scheduling coordination function to the target controller through the stage plan, a control separation scheme of central centralized calculation decision and target controller decentralized execution is realized, and a position checking device supporting vehicle-ground bidirectional communication is adopted to realize an information interaction mode of a vehicle-mounted module and the rail-side target controller. Through the mode, the safety of the tramcar is improved.
In a tramcar signal control system, a trackside turnout control module is a system with the highest safety integrity level and is also the key for ensuring the safe operation of the tramcar. The invention provides a tramcar signal control system and method based on distributed target control.
The invention decomposes the day-shift plan of the control center operation scheduling module into stage plans, decomposes and issues the plans within a period of time to the corresponding target controller at one time, reduces the communication real-time requirement caused by the fact that the communication transmission system needs to send commands, plans and the like in real time in the prior art, reduces the dependence on the control center operation scheduling module and the communication transmission system, and does not influence normal operation due to short-time system fault or communication real-time reduction.
The control center operation scheduling module collects information such as the operation state of the main track trackside equipment and the train in real time, provides global monitoring for a dispatcher, facilitates the dispatcher to carry out optimization and adjustment on operation from the whole line, and can realize adjustment in a phase plan updating mode. The control separation scheme for real-time acquisition of the equipment state is planned to be issued in stages, namely the system structure is simplified, the limitations of single-train single-point optimization, limited computing resources and unstable train-ground wireless communication when a tramcar signal control system is built around the vehicle-mounted control module as a core in the scheme II are avoided, and the problem that the control center operation scheduling module is excessively depended on when the control center operation scheduling module is used as the core in the scheme I is also avoided.
The invention properly strengthens the storage functions of the turnout control module and the intersection priority control module, judges and executes commands by self-storing and collecting information, disperses central centralized calculation control to a plurality of target controllers beside the rail and reduces the influence range of single-point faults on system operation.
Furthermore, the turnout control module and the intersection priority control module are both high-safety-integrity-level systems, the added autonomous control functions such as storage, comparison and the like are simple, the existing computing resources can completely meet the functional requirements, and the turnout control module has the characteristics of high redundancy, high safety and the like, disperses the autonomous control functions to the target controller with high safety integrity and can provide better guarantee for the safety of the system.
The invention adopts the position checking equipment supporting the train-ground two-way communication to realize the information interaction of the train-mounted module, the trackside turnout control module and the intersection priority control module, can well avoid the problems of low train positioning precision and unstable train-ground wireless communication, and provides guarantee for the distributed target control provided by the invention through accurate positioning and stable communication connection.
The above description is only for the specific embodiments of the present disclosure, but the scope of the present disclosure is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present disclosure should be covered within the scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.
Claims (10)
1. A tram signal control system based on distributed target control, characterized by comprising:
the control center operation scheduling module comprises a database server, an application server, a communication server and a dispatcher workstation and is used for realizing planning, operation scheduling monitoring, operation adjustment and information exchange with other systems;
the turnout control module comprises a turnout control module, a switch machine, position checking equipment and a route indicator and is used for controlling and managing different running routes of the train;
the intersection priority control module comprises an intersection priority control module, position checking equipment and an intersection indicator, and is used for detecting the approaching, occupying and leaving information of a train passing through a level crossing, sending an intersection state to the central operation scheduling system, and requesting to open an intersection priority control signal to the municipal traffic signal control system according to the commands of the central operation scheduling system and the vehicle-mounted system;
the control center operation scheduling module decomposes the day shift plan into stage plans, decomposes and issues plans within a period of time to the corresponding turnout control module and/or intersection priority control module at one time, the turnout control module and the intersection priority control module are provided with storage functions, and execution commands are judged through self-storage and information acquisition, so that the operation of the tramcar is independently controlled based on operation instructions which are stored in the turnout control module and the intersection priority control module and are sent in advance by the control center operation scheduling module.
2. The system of claim 1, wherein the control system further comprises:
the vehicle-mounted module equipment is installed on the tramcar, calculates the speed and the position of the train in real time, sends the speed and the position to the operation scheduling module of the control center in real time, receives information sent by the center and displays the information through the vehicle-mounted display terminal.
3. The system of claim 2, wherein:
and the control center operation scheduling module decomposes the stage plan according to the administration range of each turnout control module of the trackside turnout control module, generates a turnout control module command execution queue for each turnout control module, and sends the turnout control module command execution queue to the corresponding turnout control module through the communication transmission system.
4. The system of claim 3, wherein:
the control center operation scheduling module decomposes the stage plan according to the administration range of the intersection priority control module, generates an intersection priority control module command execution time queue for each intersection, and sends the execution time queue to the corresponding intersection priority control module through a communication transmission system;
and the control center operation scheduling module receives the operation condition in real time, converts the stage plan into the actual performance and generates the stage plan of the next stage according to the time range according to the actual performance.
5. The system of claim 4, wherein:
the position checking equipment of the trackside turnout control module adopts one or a combination of a plurality of labels, transponders and induction loops to realize train occupancy detection, and when a train enters a preset distance range of the position checking equipment, the position checking equipment interacts with the train to acquire information of a train group number, a train number and a destination number from the train.
6. The system of claim 5, wherein:
the trackside turnout control module comprises 3 sets of position checking equipment for realizing the advance notice, occupation and clear detection of the turnout area where the train enters.
7. The system of claim 6, wherein:
when the forecast detection equipment of the trackside turnout control module detects that the train occupies the area, the train group number, the train number and the destination number information sent by the train are obtained, compared with the train number and the train group number information in the turnout control module command execution queue, and executed according to the command queue after the comparison is consistent.
8. The system of claim 6, wherein:
before the train runs to a route indicator in a turnout area, after confirming that the route direction is consistent with a plan, driving the train to enter the turnout area, detecting that the train occupies the turnout area by using occupation detection equipment of a track-by-track turnout control module, and locking and protecting the turnout by using the turnout control module.
9. The system of claim 6, wherein:
the method comprises the steps that a forenotice detection device is arranged at a position a certain distance in front of a crossing indicator in a level crossing area and used for triggering a priority request for passing through a front level crossing, so that the condition that a train is decelerated and stopped due to untimely opening of the crossing indicator is avoided, and the condition that the train can not be decelerated and pass through the level crossing area under normal conditions is ensured;
and an occupation detection device is arranged at the position of the crossing indicator in the level crossing region and used for detecting whether the train enters the level crossing region or not and preventing the train from completely passing through the level crossing and closing a crossing signal machine due to a municipal traffic signal control module.
10. The system of claim 6, wherein:
when the train leaves the level crossing area, the clear detection device of the crossing priority control module detects that the train leaves the level crossing area clearly, and the crossing priority control module sends a message to the municipal traffic signal control module to release the road resources of the level crossing.
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