CN111923968A - Safety protection method and system for level crossing - Google Patents
Safety protection method and system for level crossing Download PDFInfo
- Publication number
- CN111923968A CN111923968A CN202010998664.7A CN202010998664A CN111923968A CN 111923968 A CN111923968 A CN 111923968A CN 202010998664 A CN202010998664 A CN 202010998664A CN 111923968 A CN111923968 A CN 111923968A
- Authority
- CN
- China
- Prior art keywords
- level crossing
- train
- speed
- area
- crossing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000012544 monitoring process Methods 0.000 claims description 12
- 230000009471 action Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L29/00—Safety means for rail/road crossing traffic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L29/00—Safety means for rail/road crossing traffic
- B61L29/08—Operation of gates; Combined operation of gates and signals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L15/00—Indicators provided on the vehicle or train for signalling purposes
- B61L15/0062—On-board target speed calculation or supervision
-
- 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
- B61L2027/202—Trackside control of safe travel of vehicle or train, e.g. braking curve calculation using European Train Control System [ETCS]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L29/00—Safety means for rail/road crossing traffic
- B61L29/08—Operation of gates; Combined operation of gates and signals
- B61L29/18—Operation by approaching rail vehicle or train
- B61L29/22—Operation by approaching rail vehicle or train electrically
- B61L29/226—Operation by approaching rail vehicle or train electrically using track-circuits, closed or short-circuited by train or using isolated rail-sections
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Train Traffic Observation, Control, And Security (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention provides a safety protection method and a system for a level crossing, wherein the method comprises the following steps: sending a closing command to a level crossing protection system; determining the protection state of the level crossing according to the execution condition of a closing command, wherein the protection state comprises a protected state or an unprotected state; acquiring the information of a level crossing, wherein when the protection state is an unprotected state, the information of the level crossing comprises a stop sign and the speed limit of the level crossing; and when the protection state is an unprotected state, stopping the vehicle firstly and then passing through the level crossing or passing through the level crossing without stopping the vehicle according to the stop sign and the level crossing speed limit. The safety protection method and the system for the level crossing realize the closing and opening of the level crossing through the signal system, have high automation degree, correspondingly control the train to safely pass through the level crossing according to different states of the level crossing and improve the efficiency of the train passing through the level crossing.
Description
Technical Field
The invention belongs to the field of rail transit, and particularly relates to a safety protection method and system for a level crossing.
Background
In the current level crossing, safety protection is carried out by workers, before a train passes through the level crossing, the level crossing is closed by the workers, and after the train passes through the level crossing, the level crossing is reopened by the workers. The efficiency of the manned level crossing is low, and a large amount of human resources are occupied.
Therefore, an automatic safety protection scheme for level crossing is needed.
Disclosure of Invention
Aiming at the problems, the invention provides a safety protection method for a level crossing, which comprises the following steps:
sending a closing command to a level crossing protection system;
determining the protection state of the level crossing according to the execution condition of a closing command, wherein the protection state comprises a protected state or an unprotected state;
acquiring the information of a level crossing, wherein when the protection state is an unprotected state, the information of the level crossing comprises a stop sign and the speed limit of the level crossing;
and when the protection state is an unprotected state, stopping the vehicle firstly and then passing through the level crossing or passing through the level crossing without stopping the vehicle according to the stop sign and the level crossing speed limit.
Further, the parking sign is parking, and according to the parking sign and the speed limit of the level crossing, parking before passing through the level crossing comprises:
acquiring the area information of a level crossing and the parking area information in front of the level crossing;
controlling the train to stop in the parking area;
the train is controlled to pass through the zone of the level crossing at a speed not exceeding the speed limit of the level crossing.
Further, controlling the train to stop in the stopping area includes:
and monitoring the starting point of the intersection area as the driving permission terminal of the train, and controlling the front end of the train to stop in the parking area.
Further, controlling the train to pass through the level crossing area at a speed that does not exceed the limit speed of the level crossing comprises:
after the front end of the train stops in the parking area, the front end of the train is used as the starting point of the speed limiting area of the level crossing, the end point of the speed limiting area of the level crossing is used as the end point of the speed limiting area of the level crossing, the speed limiting of the level crossing is brought into the most limited speed curve, and the train is controlled to pass through the speed limiting area of the level crossing.
Further, the stop sign is not stopped, and the speed is limited according to the stop sign and the level crossing, and the passing of the level crossing without stopping comprises the following steps:
acquiring the area information of a level crossing and the parking area information in front of the level crossing;
controlling the train to reduce the designated speed to the speed limit of the level crossing before the starting point of the level crossing area;
the train is controlled to pass through the zone of the level crossing at a speed not exceeding the speed limit of the level crossing.
Further, controlling the train to reduce the designated speed to the level crossing speed limit before the start of the level crossing zone comprises:
monitoring by taking the starting point of the intersection area as a temporary driving permission end point;
and controlling the speed of the train to be reduced until the maximum service braking speed of the train is reduced to the speed limit of the level crossing.
Further, controlling the train to pass through the level crossing area at a speed that does not exceed the limit speed of the level crossing comprises:
when the maximum service braking speed of the train is reduced to the limited speed of the level crossing, the front end of the train is used as the starting point of the speed limiting area of the level crossing, the end point of the speed limiting area of the level crossing is used as the end point of the speed limiting area of the level crossing, the speed limiting of the level crossing is brought into the most limited speed curve, and the train is controlled to pass through the speed limiting area of the level crossing. Further, the road crossing information further includes:
the number of the level crossing, the protection state of the level crossing, the area information of the level crossing and the parking area information in front of the level crossing.
Furthermore, when the protection state is a protected state, the speed of the train is controlled according to the line data provided by the ground equipment, and the train can safely pass through the level crossing.
Further, acquiring the road junction information includes:
continuously receiving the information of the level crossing by the vehicle-mounted equipment, and updating the previously received information of the level crossing;
and according to the information of the level crossing, when the protection state is updated from the unprotected state to the protected state, stopping bringing the speed limit of the level crossing into the most limited speed curve, and allowing the train to run at an increased speed.
Further, for a level crossing without a level crossing protection system, the ground equipment sends the level crossing information that the level crossing is in an unprotected state to the vehicle-mounted equipment.
The invention also provides a safety protection system for a level crossing, which comprises:
the command sending module is used for sending a closing command to the level crossing protection system;
the state judgment module is used for determining the protection state of the road junction according to the closing command execution condition, wherein the protection state comprises a protected state or an unprotected state;
the information acquisition module is used for acquiring the information of the level crossing, and when the protection state is the unprotected state, the information of the level crossing comprises a stop sign and the speed limit of the level crossing;
and the train control module is used for stopping firstly and then passing through the level crossing or passing through the level crossing without stopping according to the stop sign and the level crossing speed limit when the protection state is the unprotected state.
Further, the parking sign is parking, and according to the parking sign and the speed limit of the level crossing, parking before passing through the level crossing comprises:
acquiring the area information of a level crossing and the parking area information in front of the level crossing;
controlling the train to stop in the parking area;
the train is controlled to pass through the zone of the level crossing at a speed not exceeding the speed limit of the level crossing.
Further, controlling the train to stop in the stopping area includes:
and monitoring the starting point of the intersection area as the driving permission terminal of the train, and controlling the front end of the train to stop in the parking area.
Further, controlling the train to pass through the level crossing area at a speed that does not exceed the limit speed of the level crossing comprises:
after the front end of the train stops in the parking area, the front end of the train is used as the starting point of the speed limiting area of the level crossing, the end point of the speed limiting area of the level crossing is used as the end point of the speed limiting area of the level crossing, the speed limiting of the level crossing is brought into the most limited speed curve, and the train is controlled to pass through the speed limiting area of the level crossing.
Further, the stop sign is not stopped, and the speed is limited according to the stop sign and the level crossing, and the passing of the level crossing without stopping comprises the following steps:
acquiring the area information of a level crossing and the parking area information in front of the level crossing;
controlling the train to reduce the designated speed to the speed limit of the level crossing before the starting point of the level crossing area;
the train is controlled to pass through the zone of the level crossing at a speed not exceeding the speed limit of the level crossing.
Further, controlling the train to reduce the designated speed to the level crossing speed limit before the start of the level crossing zone comprises:
monitoring by taking the starting point of the intersection area as a temporary driving permission end point;
and controlling the speed of the train to be reduced until the maximum service braking speed of the train is reduced to the speed limit of the level crossing.
Further, controlling the train to pass through the level crossing area at a speed that does not exceed the limit speed of the level crossing comprises:
when the maximum service braking speed of the train is reduced to the limited speed of the level crossing, the front end of the train is used as the starting point of the speed limiting area of the level crossing, the end point of the speed limiting area of the level crossing is used as the end point of the speed limiting area of the level crossing, the speed limiting of the level crossing is brought into the most limited speed curve, and the train is controlled to pass through the speed limiting area of the level crossing.
The safety protection method and the system for the level crossing have the following advantages that:
the level crossing protection system is accessed into the ground signal system, and the closing and opening of the level crossing are realized through the signal system, so that the automation degree is high;
the working state of the level crossing protection system can be monitored in real time, different types of level crossing information can be provided for trains according to the protection state of the level crossing, and different levels of safety protection can be realized;
according to different states of the level crossing, two modes of passing through the level crossing after parking and passing through the level crossing without stopping are supported, and the efficiency of the train passing through the level crossing is improved.
When the protective system of the level crossing is in fault, the vehicle-mounted equipment on the train brings the limiting speed of the level crossing into the most limiting speed curve, the train operation is monitored, and the running efficiency is improved as much as possible while the safety is ensured.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.
FIG. 1 is a flow chart of a safety protection method for a level crossing according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a safety protection system for a level crossing according to an embodiment of the present invention;
FIG. 3 illustrates a schematic view of a level crossing area and parking area according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of another safety protection system for a level crossing according to an embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention provides a safety protection method for a level crossing, which is used for realizing automatic safety protection of the level crossing. As shown in fig. 1, the method comprises:
sending a closing command to a level crossing protection system;
determining the protection state of the level crossing according to the execution condition of a closing command, wherein the protection state comprises a protected state or an unprotected state;
acquiring the information of a level crossing, wherein when the protection state is an unprotected state, the information of the level crossing comprises a stop sign and the speed limit of the level crossing;
and when the protection state is an unprotected state, stopping the vehicle firstly and then passing through the level crossing or passing through the level crossing without stopping the vehicle according to the stop sign and the level crossing speed limit.
For example, the method for protecting a level crossing according to the embodiment of the present invention may be implemented by a level crossing protection system as shown in fig. 2.
As shown in fig. 2, the safety protection system for a level crossing comprises ground equipment, vehicle-mounted equipment, a signal system and the like. Specifically, the safety protection system for the level crossing comprises a level crossing protection system, an interlock (CBI), a Train Control Center (TCC), a Train-mounted system, and a signal system such as a Radio Block Center (RBC) and/or a track circuit, a trackside electronic unit, a transponder, etc. according to the road condition.
The level crossing protection system is used for automatically protecting a level crossing, can receive a crossing command to perform crossing protection actions, and automatically closes the crossing according to a closing command, enters a protected state or an unprotected state and automatically opens the crossing according to an opening command; the level crossing protection system also feeds back the crossing state according to the action result, namely the protection state of the level crossing in the embodiment of the invention. Specifically, the level crossing protection system is connected with the TCC, and reports the crossing state to the TCC, the TCC sends the crossing state to the CBI, and the CBI sends the level crossing state to the RBC.
In the embodiment of the invention, a closing command is sent to the level crossing protection system according to the position relation between the train and the level crossing, namely the closing command is sent to the level crossing protection system when the train enters the specified distance near the level crossing.
For lines that can use wireless transmission data, the onboard equipment on the train sends the train location to the RBC in real time by wireless. The RBC determines the time for sending the command to the level crossing according to the relation between the position of the train and the position of the crossing in front of the train, and the RBC sends the level crossing command to a level crossing protection system sequentially through CBI and TCC. In further embodiments, the RBC sends only the train position to the CBI, which sends the crossing command to the TCC based on the train position information, or the train position information to the TCC, which sends the crossing command to the level crossing protection system. The level crossing protection system executes a crossing command, transmits the latest level crossing information and crossing state to CBI through TCC, and then transmits the latest level crossing information and crossing state to RBC, and RBC transmits the level crossing information to vehicle-mounted equipment on a train in a wireless manner. In the embodiment of the invention, the level crossing information comprises a crossing state, namely a crossing protection state. In other embodiments, the corresponding level crossing information and crossing status may be sent separately. If the command executed by the level crossing protection system is successful, the crossing state of the level crossing is a protected state, and the level crossing information sent to the vehicle-mounted equipment by the RBC comprises the protected state of the level crossing. If the command executed by the level crossing protection system fails or the level crossing fails, the protection state in the level crossing information sent to the vehicle-mounted equipment by the RBC is an unprotected state.
For a line which cannot use wireless data transmission, the TCC sends a crossing command to a level crossing protection system when a train reaches a certain distance in front of the level crossing through the relationship between the train position detected by a track circuit and the like and the crossing position in front of the train. The level crossing protection system executes the crossing command and sends the latest crossing state to the TCC. The TCC transmits the information of the level crossing to a ground active transponder through the trackside electronic unit, and when a train passes through the active transponder, the information of the level crossing is received in an electromagnetic induction mode. If the command executed by the level crossing protection system is successful, the crossing state in the level crossing information sent to the vehicle-mounted equipment by the TCC through the active responder is the protected state. If the command executed by the level crossing protection system fails or the level crossing fails, the crossing state in the level crossing information sent to the vehicle-mounted equipment by the TCC through the active transponder is an unprotected state.
When a train approaches a level crossing, ground equipment (RBC or TCC) sends a level crossing closing command to a level crossing protection system to close the level crossing and prepare for the train to pass. After the train completely passes through the level crossing, the ground equipment (RBC or TCC) sends a level crossing opening command to the level crossing protection system to reopen the level crossing.
The following explains the safety protection process after the level crossing protection system receives the crossing command.
The level crossing protection system executes crossing closing according to the crossing closing command and feeds back crossing states.
If the level crossing protection system is successfully closed, the level crossing protection state is a protected state, the vehicle-mounted equipment does not need to carry out additional safety protection on the level crossing, the speed of the train is directly controlled according to the line data provided by the ground equipment, and the train can safely pass through the level crossing. Under the protection state of the level crossing, the information of the level crossing does not need to include speed limit information, information of a parking area in front of the level crossing, parking signs and the like.
And if the command executed by the level crossing protection system fails or the level crossing fails, feeding back the level crossing protection state as an unprotected state. The ground equipment feeds back the protection state and other information required by the train passing through the level crossing by itself through the level crossing information.
According to the embodiment of the invention, different types of level crossing information are provided for the train according to the protection state of the level crossing, and different levels of safety protection are realized.
In the embodiment of the invention, the road junction information sent to the vehicle-mounted equipment by the ground equipment comprises a road junction number, road junction area information, parking area information in front of the road junction, a road junction protection state, a parking sign and a road junction speed limit, namely the allowed speed of the road junction.
In one embodiment, the interlocking system can control a plurality of level crossings, trains can also pass through the plurality of level crossings, and the condition of continuously receiving the information of the level crossings exists, so that the level crossings are distinguished through the number of the level crossings, and the vehicle-mounted equipment updates the information of the corresponding level crossings according to the number of the level crossings. When the vehicle-mounted equipment receives a new piece of road junction information, the number of the newly received road junction is the same as that of the previously received road junction, and the newly received road junction information replaces the previously received road junction information.
The vehicle-mounted equipment also acquires the information of the intersection area and the corresponding parking area information. In the embodiment of the invention, the information of the area of the level crossing and the information of the parking area are represented by the starting point of the level crossing, the length of the level crossing and the length of the parking area in front of the level crossing. As shown in fig. 3, the end point of the level crossing = the start point of the level crossing + the length of the level crossing, the end point of the parking area = the start point of the level crossing, and the start point of the parking area = the start point of the level crossing-the length of the parking area. In another embodiment, the intersection information may be represented by an intersection start point (or parking area end point), an intersection end point, and a parking area start point. The embodiment of the present invention does not limit the specific parameters for determining the two regions. Fig. 3 shows a parking area and a level crossing area when a train drives from one direction of the level crossing to the level crossing, and in the case that the train drives from the other direction of the level crossing to the level crossing, the relationship between the parking area and the level crossing area is symmetrical to this, and a person skilled in the art can obtain a safety protection scheme in the other direction according to the safety protection scheme in the one direction in the embodiment of the present invention.
When the vehicle-mounted equipment receives the information of the level crossing from the wireless or active transponder, no additional protection is added to the protected level crossing, the speed of the train is controlled according to the line data (containing the speed limit information of the level crossing) provided by the ground equipment, and the train can safely pass through the level crossing.
And after the vehicle-mounted equipment receives the road junction information, if the protection state of the road junction is not protected, the vehicle-mounted equipment uses the road junction information. When the level crossing is not protected, the vehicle-mounted equipment brings the speed limit of the level crossing into the most limited speed curve so as to monitor the running of the train, and the highest speed of the train passing through the level crossing cannot exceed the speed limit of the level crossing. The stop sign in front of the level crossing is used for indicating whether a train needs to stop before passing through the level crossing, so that two modes of passing through the level crossing without stopping and then passing through the level crossing after stopping exist.
For an unprotected level crossing, the vehicle-mounted equipment needs to determine whether the vehicle needs to be parked in front of the level crossing according to a parking sign in front of the level crossing. If the stop sign in front of the level crossing is stop, the vehicle-mounted equipment controls the train to stop in front of the level crossing and then passes through the level crossing. If the stop sign in front of the level crossing is not stopped, the vehicle-mounted equipment controls the speed of the train to be reduced, and the train passes through the level crossing at a low speed without stopping.
When the parking sign is parking, according to the parking sign and the speed limit of the level crossing, parking is firstly carried out and then the vehicle passes through the level crossing, comprising the following steps:
the vehicle-mounted equipment acquires the area information of the intersection and the parking area information in front of the intersection, and controls the train to park in the parking area; and then the vehicle-mounted equipment controls the train to pass through the region of the level crossing at a speed not exceeding the speed limit of the level crossing.
Specifically, the starting point of the intersection area, namely the terminal of the parking area, is used as the driving permission terminal of the train for monitoring, and the front end of the train is controlled to park in the parking area. Namely, when the train stops, the front end of the train is positioned in a stopping area in front of the level crossing. In the embodiment of the present invention, the train front end is specifically a train estimation front end, and in another embodiment, the train front end may also be a maximum safety front end or a minimum safety front end. The vehicle-mounted equipment does not monitor the starting point of the level crossing as the temporary driving permission end point any more, but starts from the estimated front end of the train and brings the limiting speed of the level crossing into the most limiting speed curve. The maximum limiting speed curve is obtained by fusing various speed limiting information such as line speed limit, temporary speed limit, maximum train running speed and the like by the vehicle-mounted equipment, and the minimum speed limit in each area is taken without loss of generality to form the maximum limiting speed curve. The speed-limiting area of the level crossing is used as a special temporary speed-limiting area, the starting point of the temporary speed-limiting area is the estimated front end of the train, the terminal point of the speed-limiting area is the terminal point of the area of the level crossing, and the allowable speed of the temporary speed-limiting area is the speed-limiting of the level crossing. The speed limit is given through the vehicle-mounted equipment, a driver is allowed to control the train to run according to the speed limit, and the vehicle-mounted equipment carries out safety protection on the train running according to the speed limit. If the train stops in the parking area before stopping in the parking area, the vehicle-mounted equipment does not bring the speed limit of the level crossing into the most limited speed curve. In this case, the train is controlled to continue to run according to the allowable speed, the train is stopped in the stopping area, and then the speed limit of the level crossing is brought into the most limited speed curve.
If the parking mark in front of the level crossing is not stopped, the vehicle-mounted equipment acquires the area information of the level crossing and the parking area information in front of the level crossing; the vehicle-mounted equipment or a driver decelerates the train, when the designated speed of the current position of the train reaches the speed limit of the level crossing before the starting point of the level crossing area, the vehicle-mounted equipment brings the speed limit of the level crossing into the most limited speed curve from the current position to the terminal area of the level crossing, and the vehicle-mounted equipment controls the train to pass through the level crossing area at the speed not exceeding the speed limit of the level crossing. In the embodiment of the invention, the maximum service braking speed is selected as a target for judging whether the train reaches the first stage, namely, the specified speed is reduced to the speed limit of the level crossing before the starting point of the level crossing area. When the first stage goal is met, the second stage is entered, i.e. the train passes through the level crossing area at a speed not exceeding the level crossing speed limit. The maximum service braking speed is used as the operation control target of the train in the parking area, so that the safety and controllability of the train passing through the level crossing can be guaranteed, and the efficiency of the train passing through the level crossing is improved.
Specifically, the on-board device monitors a start point of the level crossing, i.e., a stop area end point, as a temporary driving permission end point, and the on-board device, such as an ATP (Automatic Train Protection) or a driver, controls the Train to decelerate. When the maximum service braking speed of the train is reduced to the limit speed of the level crossing, the vehicle-mounted equipment does not monitor the starting point of the level crossing as a temporary driving permission end point any more, but brings the limit speed of the level crossing into a maximum limit speed curve from the front end of the train. At the moment, the level crossing is also used as a special temporary speed limiting area, the starting point of the speed limiting area is the estimated front end of the train, the terminal point of the speed limiting area is the terminal point of the area of the level crossing, the allowable speed of the speed limiting area is the speed limiting of the level crossing, the speed limiting of the level crossing is brought into the most limited speed curve, and the train is controlled to pass through the speed limiting area of the level crossing.
The embodiment of the invention can support the level crossing to safely, efficiently and automatically pass through the level crossing in a parking mode and a non-parking mode through the parking sign and the speed limit information. By arranging the train running monitoring point, the speed limit is brought into the most limited speed curve, and the efficiency of the train passing through the level crossing can be improved.
After the train crosses the terminal of the level crossing, the allowable speed is not influenced by the speed limit of the level crossing any more, but is determined by the most limited speed curve, and the train can run in an accelerated way.
If the level crossing in front of the train has a fault, the ground equipment sends level crossing information to the vehicle-mounted equipment, and marks the unprotected state of the level crossing, the vehicle-mounted equipment needs to abide by the speed limit of the level crossing, and the level crossing passes at a low speed. The speed of the train is reduced, or the train is stopped and then runs, or runs at a low speed, a driver observes the crossing in front of the train to carry out manual protection and other protection, and the train passes through the level crossing at a lower speed. Once the driver observes an accident, the driver can apply the brake to stop the train in time, since the train speed is very low. If the fault level crossing is recovered to be normal before the train passes over the level crossing, the ground equipment sends the level crossing information with the same number to the vehicle-mounted equipment and marks the level crossing as a protected state, namely the protected state is updated from an unprotected state to a protected state. The vehicle-mounted equipment receives the new level crossing information, and the new level crossing information replaces the old level crossing information. Because the new level crossing information represents the protected state of the level crossing, the vehicle-mounted equipment stops bringing the speed limit of the level crossing into the most limited speed curve, the speed is allowed to be raised, and the train can run in an accelerated manner. The invention is implemented to continuously receive the information of the level crossing at the stage that the train passes through the level crossing, monitor the protection state of the level crossing and improve the efficiency of the train passing through the level crossing on the premise of ensuring the safety.
For a level crossing without a level crossing protection system, the ground equipment sends the information of the level crossing in an unprotected state to the vehicle-mounted equipment on the train through RBC or TCC, and the vehicle-mounted equipment brings the speed limit of the level crossing into the most limited speed curve to actively carry out safety protection.
Based on the same inventive concept, the embodiment of the invention also provides a safety protection system for the level crossing. As shown in fig. 4, the system includes:
the command sending module is used for sending a closing command to the level crossing protection system;
the state judgment module is used for determining the protection state of the road junction according to the closing command execution condition, wherein the protection state comprises a protected state or an unprotected state;
the information acquisition module is used for acquiring the information of the level crossing, and when the protection state is the unprotected state, the information of the level crossing comprises a stop sign and the speed limit of the level crossing;
and the train control module is used for stopping the train and then passing through the level crossing or passing through the level crossing without stopping the train according to the stop sign and the level crossing speed limit when the protection state is the unprotected state.
In the embodiment of the invention, the command sending module is ground equipment, and after the ground equipment acquires the train position, the ground equipment sends the crossing command according to the relation between the train position and the level crossing, and if the train approaches the level crossing, the ground equipment sends a closing command to the level crossing protection system. Without loss of generality, the surface equipment is the TCC.
And the level crossing executes closing according to the closing command, and feeds back or acquires a closing execution result through ground equipment to obtain the protection state of the level crossing. The ground equipment sends the protection status of the level crossing to the train. The train passing state judging module determines the protection state of the level crossing. Specifically, the state judgment module is arranged in the vehicle-mounted device. The train also obtains the information of the level crossing through a train control module in the vehicle-mounted equipment. And the train control module controls the train to run through the level crossing according to the protection state and the level crossing information. In the embodiment of the invention, the command sending module is in data connection with the vehicle-mounted equipment, and specifically, interaction is realized through an interlocking system, an RBC, a responder and the like. The command sending module is connected with the state judging module and the information acquiring module in the vehicle-mounted equipment, and the train control module is also connected with the information acquiring module and the state judging module. Further, specifically, the state judgment module is connected with the information acquisition module, and determines the protection state by analyzing the acquired road junction information. In the embodiment of the invention, the train-mounted equipment is used as a train control module to control the train to run, and a driver can control the train to pass through the level crossing according to the running requirements such as speed limit and the like through the train control module. The train control module is equipment capable of realizing train control, and the driving mode is not limited, such as automatic driving or manual driving.
Wherein, the grade crossing information further still includes: the number of the level crossing, the protection state of the level crossing, the area information of the level crossing and the parking area information in front of the level crossing.
When the parking sign is parking, the speed is limited according to the parking sign and the level crossing, and the parking and then the passing of the level crossing comprises the following steps: acquiring the area information of a level crossing and the parking area information in front of the level crossing; controlling the train to stop in the parking area; the train is controlled to pass through the zone of the level crossing at a speed not exceeding the speed limit of the level crossing.
Specifically, the starting point of the intersection area is used as the driving permission terminal of the train for monitoring, and the front end of the train is controlled to stop in the parking area. Then, taking the front end of the train as the starting point of the speed limiting area of the level crossing, and taking the end point of the area of the level crossing as the end point of the speed limiting area of the level crossing; and (4) bringing the speed limit of the level crossing into the most limited speed curve, and controlling the train to pass through the speed limit area of the level crossing.
When the stop sign is not stopping, limiting the speed according to the stop sign and the level crossing, and the passing of the level crossing without stopping comprises the following steps: acquiring the area information of a level crossing and the parking area information in front of the level crossing; controlling the train to reduce the designated speed to the speed limit of the level crossing before the starting point of the level crossing area; the train is controlled to pass through the zone of the level crossing at a speed not exceeding the speed limit of the level crossing.
Specifically, a starting point (parking area end point) of a level crossing area is used as a temporary driving permission end point for monitoring; controlling the speed of the train to be reduced, and taking the front end of the train as the starting point of the speed limiting area of the level crossing and the end point of the area of the level crossing as the end point of the speed limiting area of the level crossing when the maximum service braking speed of the train is reduced to the speed limiting area of the level crossing before the starting point of the area of the level crossing; and (4) bringing the speed limit of the level crossing into the most limited speed curve, and controlling the train to pass through the speed limit area of the level crossing.
When the protection state is the protected state, the speed of the train is controlled according to the line data provided by the ground equipment, and the train can safely pass through the level crossing.
Furthermore, the state judgment module continuously receives the level crossing information and updates the previously received level crossing information; and according to the information of the level crossing, when the protection state is updated from the unprotected state to the protected state, stopping bringing the speed limit of the level crossing into the most limited speed curve, and allowing the train to run at an increased speed.
For the level crossing without the level crossing protection system, the command sending module sends the level crossing information of the level crossing in an unprotected state to the state judging module.
According to the safety protection method and system for the level crossing, the closing and opening of the level crossing are realized through the signal system, and the automation degree is high; the working state of the level crossing protection system can be monitored in real time, two modes of passing through the level crossing after parking and passing through the level crossing without stopping are supported according to different states of the level crossing, and the efficiency of a train passing through the level crossing is improved under the condition of ensuring safety. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (18)
1. A safety protection method for a level crossing is characterized by comprising the following steps:
sending a closing command to a level crossing protection system;
determining the protection state of the level crossing according to the execution condition of a closing command, wherein the protection state comprises a protected state or an unprotected state;
acquiring the information of a level crossing, wherein when the protection state is an unprotected state, the information of the level crossing comprises a stop sign and the speed limit of the level crossing;
and when the protection state is an unprotected state, stopping the vehicle firstly and then passing through the level crossing or passing through the level crossing without stopping the vehicle according to the stop sign and the level crossing speed limit.
2. The safety protection method for the level crossing according to claim 1, wherein the parking sign is parking, and according to the parking sign and the speed limit of the level crossing, parking before passing through the level crossing comprises:
acquiring the area information of a level crossing and the parking area information in front of the level crossing;
controlling the train to stop in the parking area;
the train is controlled to pass through the zone of the level crossing at a speed not exceeding the speed limit of the level crossing.
3. The method of claim 2, wherein controlling the train to stop at the stopping area comprises:
and monitoring the starting point of the intersection area as the driving permission terminal of the train, and controlling the front end of the train to stop in the parking area.
4. The method of claim 2, wherein controlling the train to pass through the level crossing area at a speed that does not exceed the speed limit of the level crossing comprises:
after the front end of the train stops in the parking area, the front end of the train is used as the starting point of the speed limiting area of the level crossing, the end point of the speed limiting area of the level crossing is used as the end point of the speed limiting area of the level crossing, the speed limiting of the level crossing is brought into the most limited speed curve, and the train is controlled to pass through the speed limiting area of the level crossing.
5. The safety protection method for the level crossing according to claim 1, wherein the stop sign is non-stop, and the passing through the level crossing without stopping according to the stop sign and the level crossing speed limit comprises:
acquiring the area information of a level crossing and the parking area information in front of the level crossing;
controlling the train to reduce the designated speed to the speed limit of the level crossing before the starting point of the level crossing area;
the train is controlled to pass through the zone of the level crossing at a speed not exceeding the speed limit of the level crossing.
6. The method of claim 5, wherein controlling the train to reduce the designated speed to the level crossing speed limit before the start of the level crossing zone comprises:
monitoring by taking the starting point of the intersection area as a temporary driving permission end point;
and controlling the speed of the train to be reduced until the maximum service braking speed of the train is reduced to the speed limit of the level crossing.
7. The method of claim 5, wherein controlling the train to pass through the level crossing area at a speed that does not exceed the speed limit of the level crossing comprises:
when the maximum service braking speed of the train is reduced to the limited speed of the level crossing, the front end of the train is used as the starting point of the speed limiting area of the level crossing, the end point of the speed limiting area of the level crossing is used as the end point of the speed limiting area of the level crossing, the speed limiting of the level crossing is brought into the most limited speed curve, and the train is controlled to pass through the speed limiting area of the level crossing.
8. The method of any of claims 1-7, wherein the level crossing information further comprises:
the number of the level crossing, the protection state of the level crossing, the area information of the level crossing and the parking area information in front of the level crossing.
9. The level crossing safety protection method according to any one of claims 1 to 7,
and when the protection state is a protected state, the speed of the train is controlled according to the line data provided by the ground equipment, and the train safely passes through the level crossing.
10. The method of any of claims 1-7, wherein obtaining the level crossing information comprises:
continuously receiving the information of the level crossing by the vehicle-mounted equipment, and updating the previously received information of the level crossing;
and according to the information of the level crossing, when the protection state is updated from the unprotected state to the protected state, stopping bringing the speed limit of the level crossing into the most limited speed curve, and allowing the train to run at an increased speed.
11. The level crossing safety protection method according to any one of claims 1 to 7,
for a level crossing without a level crossing protection system, the ground equipment sends the level crossing information that the level crossing is in an unprotected state to the vehicle-mounted equipment.
12. A level crossing safety protection system, comprising:
the command sending module is used for sending a closing command to the level crossing protection system;
the state judgment module is used for determining the protection state of the road junction according to the closing command execution condition, wherein the protection state comprises a protected state or an unprotected state;
the information acquisition module is used for acquiring the information of the level crossing, and when the protection state is the unprotected state, the information of the level crossing comprises a stop sign and the speed limit of the level crossing;
and the train control module is used for stopping firstly and then passing through the level crossing or passing through the level crossing without stopping according to the stop sign and the level crossing speed limit when the protection state is the unprotected state.
13. The level crossing safety protection system of claim 12, wherein the stop sign is a stop, and wherein stopping before passing through the level crossing according to the stop sign and the level crossing speed limit comprises:
acquiring the area information of a level crossing and the parking area information in front of the level crossing;
controlling the train to stop in the parking area;
the train is controlled to pass through the zone of the level crossing at a speed not exceeding the speed limit of the level crossing.
14. The level crossing safety protection system of claim 13, wherein controlling the train to stop at the stopping area comprises:
and monitoring the starting point of the intersection area as the driving permission terminal of the train, and controlling the front end of the train to stop in the parking area.
15. The crossing safety protection system of claim 13, wherein controlling the train to pass through the crossing area at a speed that does not exceed the speed limit of the crossing comprises:
after the front end of the train stops in the parking area, the front end of the train is used as the starting point of the speed limiting area of the level crossing, the end point of the speed limiting area of the level crossing is used as the end point of the speed limiting area of the level crossing, the speed limiting of the level crossing is brought into the most limited speed curve, and the train is controlled to pass through the speed limiting area of the level crossing.
16. The level crossing safety protection system of claim 12, wherein the stop sign is non-stop, and the passing through the level crossing without stopping according to the stop sign and the level crossing speed limit comprises:
acquiring the area information of a level crossing and the parking area information in front of the level crossing;
controlling the train to reduce the designated speed to the speed limit of the level crossing before the starting point of the level crossing area;
the train is controlled to pass through the zone of the level crossing at a speed not exceeding the speed limit of the level crossing.
17. The crossing safety protection system of claim 16, wherein controlling the train to reduce the designated speed to the crossing speed limit before the start of the crossing zone comprises:
monitoring by taking the starting point of the intersection area as a temporary driving permission end point;
and controlling the speed of the train to be reduced until the maximum service braking speed of the train is reduced to the speed limit of the level crossing.
18. The crossing safety protection system of claim 16, wherein controlling the train to pass through the crossing area at a speed that does not exceed the speed limit of the crossing comprises:
when the maximum service braking speed of the train is reduced to the limited speed of the level crossing, the front end of the train is used as the starting point of the speed limiting area of the level crossing, the end point of the speed limiting area of the level crossing is used as the end point of the speed limiting area of the level crossing, the speed limiting of the level crossing is brought into the most limited speed curve, and the train is controlled to pass through the speed limiting area of the level crossing.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010998664.7A CN111923968B (en) | 2020-09-22 | 2020-09-22 | Safety protection method and system for level crossing |
| PCT/CN2021/102904 WO2022062525A1 (en) | 2020-09-22 | 2021-06-29 | Level crossing safety protection method and system |
| EP21759003.3A EP4001049A4 (en) | 2020-09-22 | 2021-06-29 | Level crossing safety protection method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010998664.7A CN111923968B (en) | 2020-09-22 | 2020-09-22 | Safety protection method and system for level crossing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111923968A true CN111923968A (en) | 2020-11-13 |
| CN111923968B CN111923968B (en) | 2021-01-05 |
Family
ID=73333986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010998664.7A Active CN111923968B (en) | 2020-09-22 | 2020-09-22 | Safety protection method and system for level crossing |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4001049A4 (en) |
| CN (1) | CN111923968B (en) |
| WO (1) | WO2022062525A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022062525A1 (en) * | 2020-09-22 | 2022-03-31 | 北京全路通信信号研究设计院集团有限公司 | Level crossing safety protection method and system |
| CN114348076A (en) * | 2022-01-07 | 2022-04-15 | 北京全路通信信号研究设计院集团有限公司 | Railway crossing passing method and system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000013926A (en) * | 1998-06-24 | 2000-01-14 | Toshiba Corp | Automatic train stop apparatus |
| CN107622680A (en) * | 2017-09-25 | 2018-01-23 | 中铁二院重庆勘察设计研究院有限责任公司 | A kind of tramcar level crossing complex control system |
| CN207466690U (en) * | 2017-11-15 | 2018-06-08 | 淄博矿业集团有限责任公司济宁北矿区铁路运销处 | Ultra-wide level crossing intelligent early-warning and tele-control system |
| CN109410645A (en) * | 2018-10-31 | 2019-03-01 | 北京交通大学 | Stop sign control road junction early warning system and method based on bus or train route collaboration |
| CN111137330A (en) * | 2020-01-22 | 2020-05-12 | 无锡城市职业技术学院 | Level crossing safety traffic system and level crossing control system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007022837A1 (en) * | 2007-05-10 | 2008-11-13 | Siemens Ag | Device and method for train control at a railroad crossing |
| US10665118B2 (en) * | 2014-11-19 | 2020-05-26 | The Island Radar Company | Railroad crossing and adjacent signalized intersection vehicular traffic control preemption systems and methods |
| CN204821616U (en) * | 2015-06-18 | 2015-12-02 | 中国石油化工股份有限公司 | Grade crossing safety warning signal device |
| EP3228521A1 (en) * | 2016-04-05 | 2017-10-11 | ALSTOM Transport Technologies | Method for controlling a railway level crossing |
| CN111923968B (en) * | 2020-09-22 | 2021-01-05 | 北京全路通信信号研究设计院集团有限公司 | Safety protection method and system for level crossing |
-
2020
- 2020-09-22 CN CN202010998664.7A patent/CN111923968B/en active Active
-
2021
- 2021-06-29 EP EP21759003.3A patent/EP4001049A4/en active Pending
- 2021-06-29 WO PCT/CN2021/102904 patent/WO2022062525A1/en unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000013926A (en) * | 1998-06-24 | 2000-01-14 | Toshiba Corp | Automatic train stop apparatus |
| CN107622680A (en) * | 2017-09-25 | 2018-01-23 | 中铁二院重庆勘察设计研究院有限责任公司 | A kind of tramcar level crossing complex control system |
| CN207466690U (en) * | 2017-11-15 | 2018-06-08 | 淄博矿业集团有限责任公司济宁北矿区铁路运销处 | Ultra-wide level crossing intelligent early-warning and tele-control system |
| CN109410645A (en) * | 2018-10-31 | 2019-03-01 | 北京交通大学 | Stop sign control road junction early warning system and method based on bus or train route collaboration |
| CN111137330A (en) * | 2020-01-22 | 2020-05-12 | 无锡城市职业技术学院 | Level crossing safety traffic system and level crossing control system |
Non-Patent Citations (1)
| Title |
|---|
| 张正清: ""一度停车"在铁路运输中的运用", 《中国冶金教育》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022062525A1 (en) * | 2020-09-22 | 2022-03-31 | 北京全路通信信号研究设计院集团有限公司 | Level crossing safety protection method and system |
| CN114348076A (en) * | 2022-01-07 | 2022-04-15 | 北京全路通信信号研究设计院集团有限公司 | Railway crossing passing method and system |
| CN114348076B (en) * | 2022-01-07 | 2023-10-13 | 北京全路通信信号研究设计院集团有限公司 | Railway crossing passing method and system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111923968B (en) | 2021-01-05 |
| EP4001049A1 (en) | 2022-05-25 |
| EP4001049A4 (en) | 2022-09-21 |
| WO2022062525A1 (en) | 2022-03-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110758484B (en) | Train automatic driving method, VOBC, TIAS and area controller | |
| CN101941451B (en) | Intermittent train control system | |
| EP2746132B1 (en) | Ctcs level-3 onboard automatic train operation device and rail transit car | |
| EP0341826A2 (en) | A railway signalling system | |
| CN111923968B (en) | Safety protection method and system for level crossing | |
| CN109625031A (en) | Simplify the non-communicating vehicle operation method and control system of orbit occupancy detection device | |
| CN105632216A (en) | Traffic information command method for prompting vehicles driving on road, indicating and interfering driving of vehicles by network | |
| CN109719288A (en) | Molten Iron Transportation control method, rear end and front end | |
| CN114684222B (en) | Train control method and system based on bidirectional transmission of transponder | |
| CN113247044B (en) | Train red light running protection system and method based on ground transponder | |
| CN114394128B (en) | Train control method and system, vehicle-mounted subsystem and trackside resource management subsystem | |
| EP2675690B1 (en) | Method for operating a track-bound vehicle and track-side device and arrangement having such a device | |
| CN116654054A (en) | Virtual marshalling full-state switching control system and method based on vehicle-to-vehicle communication | |
| CN114194249B (en) | Train driving control method and control system | |
| JP6686072B2 (en) | Train operation management system | |
| AU2019229333A1 (en) | Improved security computer onboard a railway vehicle, and associated railway vehicle | |
| JP7466604B1 (en) | Railroad Crossing Safety System | |
| KR102217872B1 (en) | Non-stop pass prevention system for railway vehicles using RFID | |
| JPS62258858A (en) | Train service control system | |
| CN116811971B (en) | Safety control system for railway car | |
| CN217575225U (en) | Non-fixed degradation route safety indication and protection system for train | |
| CN113954909B (en) | Non-fixed degradation route safety indication and protection method based on vehicle-mounted signal lamp | |
| JPH07125637A (en) | Monitoring and control device for detecting, discriminating, monitoring and controlling varieties of ground equipment on vehicle | |
| JPH04201678A (en) | Security control method and device coping with failure of railway crossing gate and alarm | |
| Shrivastava et al. | Optimising Headway using Communication Based Train Control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211220 Address after: 7 / F, block B, No.1 yard, Automobile Museum South Road, Fengtai Science and Technology Park, Fengtai District, Beijing 100070 Patentee after: BEIJING NATIONAL RAILWAY RESEARCH & DESIGN INSTITUTE OF SIGNAL & COMMUNICATION Co.,Ltd. Patentee after: China Railway Communication Signal Co., Ltd Address before: 7 / F, block B, No.1 yard, Automobile Museum South Road, Fengtai Science and Technology Park, Fengtai District, Beijing 100070 Patentee before: BEIJING NATIONAL RAILWAY RESEARCH & DESIGN INSTITUTE OF SIGNAL & COMMUNICATION Co.,Ltd. |
|
| TR01 | Transfer of patent right |