CN115195830B - Automatic early warning method and system for unmanned crossing - Google Patents
Automatic early warning method and system for unmanned crossing Download PDFInfo
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- CN115195830B CN115195830B CN202211025707.9A CN202211025707A CN115195830B CN 115195830 B CN115195830 B CN 115195830B CN 202211025707 A CN202211025707 A CN 202211025707A CN 115195830 B CN115195830 B CN 115195830B
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- 238000000034 method Methods 0.000 title claims description 25
- 230000003137 locomotive effect Effects 0.000 claims abstract description 239
- 238000001514 detection method Methods 0.000 claims description 20
- 230000005540 biological transmission Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 238000012840 feeding operation Methods 0.000 description 3
- 230000001960 triggered effect Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 1
Classifications
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- 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
- B61L29/24—Means for warning road traffic that a gate is closed or closing, or that rail traffic is approaching, e.g. for visible or audible warning
- B61L29/28—Means for warning road traffic that a gate is closed or closing, or that rail traffic is approaching, e.g. for visible or audible warning electrically operated
- B61L29/30—Supervision, e.g. monitoring arrangements
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- 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
- B61L29/24—Means for warning road traffic that a gate is closed or closing, or that rail traffic is approaching, e.g. for visible or audible warning
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The invention discloses an automatic early warning system for an unmanned crossing, which comprises: the locomotive is in communication connection with the locomotive security control unit, the locomotive security control unit is in communication connection with the automatic access unit, and the automatic access unit is in communication connection with the unmanned road junction control units arranged at all road junctions; the locomotive is provided with a positioning device, the locomotive sends the current position, the speed and the running direction to a locomotive safety control unit, and the automatic route unit stores attribute information of each locomotive and each vehicle; the locomotive security control unit sends the current position, speed and running direction of each locomotive to the automatic access unit, and the automatic access unit controls the road junction to be in an open state when the locomotive is about to enter the road junction, and controls the road junction to be in a closed state after the locomotive leaves the road junction. The locomotive can turn around after corresponding to the crossing or after crossing operation, and the unmanned crossing control unit can timely open and close the crossing, so that the running efficiency of the locomotive is improved on the premise of ensuring traffic safety.
Description
Technical Field
The invention belongs to the technical field of railway transportation control, and particularly relates to an automatic early warning method and system for an unmanned road junction.
Background
The railway crossing is divided into a manned crossing and an unmanned crossing, under normal conditions, the traffic volume of the railway and the road passing through the unmanned crossing is not large, and the railway operation is mainly carried out by once passing of the train, and corresponding crossing safety facilities are arranged according to regulations. However, in enterprise railways, a considerable part of railway operations without a crossing are mainly shunting operations, frequent approaching, passing or occupying crossing phenomena often occur in operations, so that vehicles and pedestrians passing through the crossing can not confirm the properties of the railway operations, and the phenomena of crossing robbery or dare to pass through the crossing occur, the former brings potential safety hazards, the latter influences the crossing passing efficiency, in order to eliminate the potential hazards, the passing safety efficiency of the crossing is improved, the enterprise is usually solved by adopting a mode of setting alarm bell early warning, the alarm bell is automatically triggered by adopting a mode of setting track circuits or sensors on the circuits on two sides of the crossing, and the information acquired by the two modes are comprehensively judged and then triggered, but the modes are insufficient in practical application and cannot be well used, and the method is mainly as follows:
when a locomotive and a carried train set enter a crossing, the locomotive and the carried train set trigger sensors (12, 22) or the track circuits at the sides of the crossing in a direction of entering the crossing, and at the moment, an alarm bell is in an on state, after the crossing operation is finished, when the locomotive and the carried train set are turned around and exit the crossing, the sensors (13, 23) or the track circuits at the other sides of the crossing are not triggered, so that the alarm bell is always in an on state, and the traffic of other locomotives and the carried train set is influenced.
Along with the continuous refinement and deepening of enterprise safety control, the strengthening of safety control over railway crossings, in particular unmanned crossings, becomes necessary, and the automatic early warning through the arrangement of an alarm bell has become one of the main means. As described above, the existing automatic alarm bell early warning triggering mode cannot well meet the automatic early warning requirements of all the crossing ports of enterprises.
Disclosure of Invention
The invention provides an automatic early warning system for an unmanned crossing, which aims to solve the problems.
The invention is realized in that an automatic early warning system for an unmanned crossing comprises:
the locomotive and the locomotive set are in communication connection with the safety control unit, the locomotive safety control unit is in communication connection with the automatic access unit, and the automatic access unit is in communication connection with the unmanned road junction control units arranged at all road junctions;
a positioning device is arranged at the locomotive, and the locomotive sends the current position, the speed and the running direction of the locomotive to a locomotive security control unit;
the locomotive security control unit sends the current position, speed and running direction information of each locomotive to the automatic access unit, the attribute information of each locomotive and vehicles is arranged in the automatic access unit, the road junction is controlled to be in an open state when the locomotive and the locomotive group are about to enter the road junction, and the road junction is controlled to be in a closed state after the locomotive and the locomotive group are driven away from the road junction.
Further, the control method of the crossing of the automatic access unit specifically comprises the following steps:
correcting the positions of the head and tail parts of the locomotive and the carried locomotive consist based on the operation mode, controlling the corresponding unmanned road junction control unit to perform road junction opening operation when detecting that the running direction of the locomotive and the carried locomotive consist is the set distance from the road junction to the road junction, and controlling the corresponding unmanned road junction control unit to perform road junction closing operation when detecting that the running direction of the locomotive and the carried locomotive consist deviates from the road junction and the tail part of the locomotive and the carried locomotive consist is the set distance from the road junction.
Further, the head positions of each locomotive and the locomotive group are determined based on the operation mode, and the determination method is specifically as follows:
when the operation mode of the locomotive is overhead feeding operation, determining the number of vehicles of a current train set carried by the locomotive based on an operation plan, and further determining the length of the train set carried by the locomotive, wherein the sum of the locomotive position and the length of the train set is the head position of the locomotive and the head position of the train set carried by the locomotive; when the operation mode of the locomotive is traction operation, the locomotive position is the head position of the locomotive and the locomotive group.
Further, the tail positions of each locomotive and the locomotive group are determined based on the operation mode, and the determination method is specifically as follows:
when the operation mode of the locomotive is top-feed operation, the locomotive position is the tail position of the locomotive and the locomotive group;
when the operation mode of the locomotive is traction operation, the number of vehicles of the current locomotive with the locomotive set is determined based on an operation plan, and then the length of the locomotive with the locomotive set is determined, and the tail positions of the locomotive and the locomotive with the locomotive set are the difference value between the locomotive position and the length of the locomotive set.
Further, each of the unmanned crossing control units includes:
and the PLC is in communication connection with the alarm bell and the signal display device.
Further, when the crossing is opened, the PLC controls the alarm bell to be opened, meanwhile, the signal display device displays that the railway is allowed to pass through the highway to be forbidden, and when the crossing is closed, the PLC controls the alarm bell to be opened and closed, and meanwhile, the signal display device displays that the railway is allowed to pass through the highway to be forbidden.
Further, when a plurality of railways exist at the crossing, the control method of the crossing unmanned crossing control unit specifically comprises the following steps:
when the distance between the head of each locomotive and the head of the carried train and the road junction is set, detecting whether the road junction is in an open state, if the detection result is negative, controlling the road junction to be in an open state, and when the tail of each locomotive and the tail of the carried train are driven away from the road junction by the set distance, detecting whether other locomotives and the carried train exist in the current road junction, if the detection result is positive, still keeping the road junction in the open state, and if the detection result is negative, controlling the road junction to be in a closed state.
The invention discloses an automatic early warning method for an unmanned road junction, which comprises the following steps:
s1, acquiring current position, speed, running direction and corresponding locomotive attribute information of each locomotive;
s2, correcting the positions of the head and tail of the locomotive and the locomotive set based on the operation mode;
s3, when the running directions of the locomotive and the carried train set are detected to be the entrance road and the head parts of the locomotive and the carried train set are set to be away from the road junction, the road junction opening operation is carried out, and when the running directions of the locomotive and the carried train set are detected to deviate from the road junction and the tail parts of the locomotive and the carried train set are detected to be away from the road junction and the distance is set, the road junction closing operation is controlled.
Further, if there are multiple railways at the crossing, step S3 is specifically as follows:
when the distance between the head of each locomotive and the head of the carried train and the road junction is set, detecting whether the road junction is in an open state, if the detection result is negative, controlling the road junction to be in an open state, and when the tail of each locomotive and the tail of the carried train are driven away from the road junction by the set distance, detecting whether other locomotives and the carried train exist in the current road junction, if the detection result is positive, still keeping the road junction in the open state, and if the detection result is negative, controlling the road junction to be in a closed state.
The automatic early warning control system for the unmanned road junction provided by the invention can timely open and close the road junction when the locomotive directly passes through the corresponding road junction or turns around after the road junction works, and improves the running efficiency of the locomotive on the premise of ensuring the traffic safety.
Drawings
FIG. 1 is a schematic diagram of an existing unmanned crossing control early warning mode;
fig. 2 is a schematic structural diagram of an automatic early warning system for an unmanned road junction according to an embodiment of the present invention;
fig. 3 is a flowchart of an automatic early warning method for an unmanned road junction provided by an embodiment of the invention.
Detailed Description
The following detailed description of the embodiments of the invention, given by way of example only, is presented in the accompanying drawings to aid in a more complete, accurate, and thorough understanding of the inventive concepts and aspects of the invention by those skilled in the art.
The crossing refers to an intersection of a railway and a highway where a locomotive runs, the crossing is opened, the railway is allowed to pass, the highway is forbidden at the same time, the crossing is closed, and the highway is allowed to pass, so that the railway is forbidden.
Fig. 2 is a schematic structural diagram of an automatic warning system for an unmanned crossing according to an embodiment of the present invention, and for convenience of explanation, only a portion related to the embodiment of the present invention is shown, where the system includes:
the locomotive and the locomotive consist, wherein the locomotive is in communication connection with a locomotive safety control unit, the locomotive safety control unit is in communication connection with an automatic access unit, and the automatic access unit is in communication connection with an unmanned road junction control unit arranged at each road junction;
a positioning device is arranged at the locomotive, and the locomotive sends the current position, the speed and the running direction to a locomotive security control unit;
the locomotive security control unit sends the current position, speed and running direction of each locomotive to the automatic route unit, and the automatic route unit stores the attribute information of each locomotive and each vehicle, wherein the attribute information of each locomotive and each vehicle comprises: locomotive identification, operation mode, operation plan and vehicle length, the operation plan of locomotive comprises operation route and operation action on the operation route, and the operation route comprises a plurality of tracks and crossing on the tracks, and the operation action includes: the method comprises the steps of adding and throwing the train set, wherein the operation modes comprise overhead conveying operation and traction operation, the overhead conveying operation is that a locomotive is in front of a rear train set, and the traction operation is that the locomotive is behind the front train set;
the invention gives a specific example of a job plan: stock way 1, number of added and hung train sets 1, crossing 1; stock way 2, number of the trolley set 2; and the strand 3 is used for throwing and hanging the number 3 of the train sets, wherein the strand comprises the strand 1 and the strand 2 of the crossing 1, and the strand 3 forms a working path.
The automatic access unit corrects the positions of the heads and the tails of the locomotive and the carried locomotive consist based on an operation mode, controls the unmanned road junction control units corresponding to the road junction to perform road junction opening operation when detecting that the running directions of the locomotive and the carried locomotive consist are the entrance road junction and the heads of the locomotive and the carried locomotive consist are set to be away from the road junction (for example, 5 meters), and controls the unmanned road junction control units corresponding to the road junction to perform road junction closing operation when detecting that the running directions of the locomotive and the carried locomotive consist deviate from the road junction and the tails of the locomotive and the carried locomotive consist are set to be away from the road junction; the locomotive and the locomotive group can directly pass through the corresponding road junction or turn around after the road junction operation, and the unmanned road junction control unit can timely open and close the road junction, so that the road junction passing efficiency is improved on the premise of ensuring the passing safety.
In the embodiment of the invention, the head positions of each locomotive and the locomotive group are determined based on the operation mode, and the determination method is specifically as follows:
when the operation mode of the locomotive is overhead feeding operation, determining the number of vehicles of a current train set carried by the locomotive based on an operation plan, and further determining the length of the train set carried by the locomotive, wherein the sum of the locomotive position and the length of the train set is the head position of the locomotive and the head position of the train set carried by the locomotive; when the operation mode of the locomotive is traction operation, the locomotive position is the head position of the locomotive and the locomotive group.
The tail positions of locomotives and a set of locomotives are determined based on an operation mode, and the determination method is specifically as follows:
when the operation mode of the locomotive is top-feed operation, the locomotive position is the tail position of the locomotive and the locomotive group; when the operation mode of the locomotive is traction operation, the number of vehicles of the current train set carried by the locomotive is determined based on an operation plan, and then the length of the train set carried by the locomotive is determined, and the tail positions of the locomotive and the train set carried by the locomotive are the difference value between the locomotive position and the length of the train set.
In the embodiment of the invention, an unmanned crossing control unit is arranged at each unmanned crossing, and each unmanned crossing control unit comprises:
the PLC controller is in communication connection with the alarm bell and the signal display device; when the crossing is opened, the PLC controls the alarm bell to be opened, and meanwhile, the signal display device displays that the railway is allowed to pass through the highway, namely, the railway is allowed to pass through, and the highway is forbidden to pass through.
In the embodiment of the invention, the number of the railways passing through each unmanned crossing is different, when the crossing only has one railway, the control can be performed based on the method, when the crossing has a plurality of railways, the crossing possibly has a plurality of locomotives and a plurality of groups of cars passing through the crossing, the locomotives and the groups of cars pass through the crossing through the respective railways, and the condition that two cars meet can not occur in each railway through planning an operation plan is solved, and the control method of the crossing unmanned crossing control unit comprises the following steps:
when the locomotive and the head of the carried locomotive are set at a distance from the road junction, detecting whether the road junction is in an open state, if the detection result is negative, controlling the road junction to be in an open state, if the detection result is positive, no other operation is needed, and when the tail of each locomotive and the carried locomotive is driven at a distance from the road junction, detecting whether other locomotives and the carried locomotive are still present in the current road junction, if the detection result is positive, still keeping the road junction in an open state, and if the detection result is negative, controlling the road junction to be in a closed state.
Fig. 3 is a flowchart of an automatic early warning method for an unmanned road junction, which specifically includes the following steps:
s1, acquiring the current position, speed and running direction of each locomotive and attribute information of the corresponding locomotive;
s2, correcting the head position and the tail position of the locomotive and the locomotive set based on the operation mode;
s3, when the running directions of the locomotive and the carried train set are detected to be the entrance road and the head parts of the locomotive and the carried train set are set to be away from the road junction, the road junction opening operation is carried out, and when the running directions of the locomotive and the carried train set are detected to deviate from the road junction and the tail parts of the locomotive and the carried train set are detected to be away from the road junction and the distance is set, the road junction closing operation is controlled.
In the embodiment of the present invention, if the crossing has a plurality of railways, step S3 is specifically as follows:
when the distance between the heads of each locomotive and the associated train set and the road junction is set, detecting whether the road junction is in an open state, if the detection result is negative, controlling the road junction to be in an open state, if the detection result is negative, no other operation is needed, and when the tails of each locomotive and the associated train set are driven away from the road junction for the set distance, detecting whether other locomotives and the associated train set exist in the current road junction, if the detection result is negative, still keeping the road junction in the open state, and if the detection result is negative, controlling the road junction to be in the closed state.
In the embodiment of the invention, the locomotive and the head position of the carried locomotive group of each locomotive are determined based on the operation mode, and the determination method is specifically as follows:
when the operation mode of the locomotive is overhead feeding operation, determining the number of vehicles carried by the current train set of the locomotive based on an operation plan, and further determining the length of the train set carried by the locomotive, wherein the sum of the locomotive position and the length of the train set is the head position of the locomotive and the head position of the carried train set; when the operation mode of the locomotive is traction operation, the locomotive position is the head position of the locomotive and the locomotive group.
The tail positions of locomotives and a set of locomotives are determined based on an operation mode, and the determination method is specifically as follows:
when the operation mode of the locomotive is top-feed operation, the locomotive position is the tail position of the locomotive and the locomotive group; when the operation mode of the locomotive is traction operation, the number and the attribute of the current vehicles of the locomotive with the train set are determined based on an operation plan, so that the length of the train set carried by the locomotive is determined, and the tail positions of the locomotive and the train set are the difference value between the locomotive position and the length of the train set.
While the present invention has been described by way of example, it should be apparent that the practice of the invention is not limited by the foregoing, but rather is intended to cover various insubstantial modifications of the method concepts and teachings of the invention, either as applied to other applications without modification, or as applied directly to other applications, without departing from the scope of the invention.
Claims (7)
1. An automated early warning system for an unmanned crossing, the system comprising:
the locomotive and the locomotive set are in communication connection with the safety control unit, the locomotive safety control unit is in communication connection with the automatic access unit, and the automatic access unit is in communication connection with the unmanned road junction control units arranged at all road junctions;
a positioning device is arranged at the locomotive, and the locomotive sends the current position, the speed and the running direction of the locomotive to a locomotive security control unit;
the locomotive safety control unit sends the current position, speed and running direction information of each locomotive to the automatic access unit, wherein the automatic access unit is internally provided with attribute information of each locomotive and each vehicle, the locomotive and the associated vehicle group are about to enter the road junction, the road junction is controlled to be in an open state, and the locomotive and the associated vehicle group are controlled to be in a closed state after being driven away from the road junction;
the control method of the crossing of the automatic access unit specifically comprises the following steps:
correcting the positions of the head and tail parts of the locomotive and the carried locomotive consist based on an operation mode, controlling the corresponding unmanned road junction control unit to perform road junction opening operation when detecting that the running direction of the locomotive and the carried locomotive consist is a set distance from a road junction, and controlling the corresponding unmanned road junction control unit to perform road junction closing operation when detecting that the running direction of the locomotive and the carried locomotive consist deviates from the road junction and the tail part of the locomotive and the carried locomotive consist is a set distance from the road junction;
the head positions of each locomotive and the locomotive group are determined based on the operation mode, and the determination method is specifically as follows:
when the operation mode of the locomotive is overhead transmission operation, determining the number of vehicles of a current locomotive set based on an operation plan, further determining the length of the locomotive set carried by the locomotive, wherein the sum of the locomotive position and the length of the locomotive set is the head position of the locomotive and the locomotive set carried by the locomotive;
when the operation mode of the locomotive is traction operation, the locomotive position is the head position of the locomotive and the locomotive group.
2. The automatic early warning system for unmanned crossing according to claim 1, wherein the tail positions of each locomotive and the train set are determined based on the operation mode, and the determination method is as follows:
when the operation mode of the locomotive is top-feed operation, the locomotive position is the tail position of the locomotive and the locomotive group;
when the operation mode of the locomotive is traction operation, the number of vehicles of the current locomotive group is determined based on an operation plan, and then the length of the locomotive group is determined, and the tail positions of the locomotive and the locomotive group are the difference value between the locomotive position and the length of the locomotive group.
3. The automated crossing warning system of claim 1, wherein each of the unmanned crossing control units comprises:
and the PLC is in communication connection with the alarm bell and the signal display device.
4. The automated early warning system for an unmanned crossing of claim 3, wherein the PLC controller controls the bell to be turned on while the signal display means displays that the railway is allowed to pass through the highway and the bell to be turned on and off while the signal display means displays that the railway is allowed to pass through the highway while the crossing is turned off.
5. The automatic early warning system for an unmanned crossing according to claim 1, wherein when a plurality of railways exist at the crossing, the control method of the unmanned crossing control unit for the crossing comprises the following steps:
when the distance between the head of each locomotive and the head of the carried train and the road junction is set, detecting whether the road junction is in an open state, if the detection result is negative, controlling the road junction to be in an open state, and when the tail of each locomotive and the tail of the carried train are driven away from the road junction by the set distance, detecting whether other locomotives and the carried train exist in the current road junction, if the detection result is positive, still keeping the road junction in the open state, and if the detection result is negative, controlling the road junction to be in a closed state.
6. An automatic early warning method for an unmanned crossing is characterized by comprising the following steps:
s1, acquiring current position, speed, running direction and corresponding locomotive attribute information of each locomotive;
s2, correcting the positions of the head and tail of the locomotive and the locomotive set based on the operation mode;
s3, when the running directions of the locomotive and the carried train set are detected to be the entrance road and the head parts of the locomotive and the carried train set are set to be away from the road junction, the road junction opening operation is carried out, and when the running directions of the locomotive and the carried train set are detected to deviate from the road junction and the tail parts of the locomotive and the carried train set are detected to be away from the road junction and the distance is set, the road junction closing operation is controlled.
7. The automatic early warning method for an unmanned crossing according to claim 6, wherein if there are a plurality of railways at the crossing, step S3 is specifically as follows:
when the distance between the head of each locomotive and the head of the carried train and the road junction is set, detecting whether the road junction is in an open state, if the detection result is negative, controlling the road junction to be in an open state, and when the tail of each locomotive and the tail of the carried train are driven away from the road junction by the set distance, detecting whether other locomotives and the carried train exist in the current road junction, if the detection result is positive, still keeping the road junction in the open state, and if the detection result is negative, controlling the road junction to be in a closed state.
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