CN111114586A - Method for setting axle counting point with short distance of urban rail transit tie line - Google Patents
Method for setting axle counting point with short distance of urban rail transit tie line Download PDFInfo
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- CN111114586A CN111114586A CN201911384280.XA CN201911384280A CN111114586A CN 111114586 A CN111114586 A CN 111114586A CN 201911384280 A CN201911384280 A CN 201911384280A CN 111114586 A CN111114586 A CN 111114586A
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- axle counting
- section
- turnout
- tie line
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000004891 communication Methods 0.000 claims description 8
- 238000012423 maintenance Methods 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 230000009545 invasion Effects 0.000 description 9
- 238000013461 design Methods 0.000 description 7
- 238000005457 optimization Methods 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 238000012938 design process Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000004956 CI calculation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
- B61L1/00—Devices along the route controlled by interaction with the vehicle or train
- B61L1/16—Devices for counting axles; Devices for counting vehicles
- B61L1/161—Devices for counting axles; Devices for counting vehicles characterised by the counting methods
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Mechanical Engineering (AREA)
- Train Traffic Observation, Control, And Security (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The invention relates to an axle counting point setting method for short distance of an urban rail transit tie line, which divides a turnout-free section after adding an axle counting point on the tie line and divides the turnout-free section into a shared section, namely, the shared section occupation information is simultaneously output to two lines. Compared with the prior art, the method and the device have the advantages of improving the reliability and the usability of the signal system, improving the operation efficiency and the like.
Description
Technical Field
The invention relates to the field of urban rail transit, in particular to a method for setting a short-distance axle counting point of an urban rail transit tie line.
Background
In the field of urban rail transit, a tie line refers to a line formed by connecting lines, and the tie line is an important component in urban rail transit. The signal system design work is after civil engineering, and tie line department switch, demarcation point etc. will confirm after the civil engineering is accomplished, carries out the signal system design this moment, and the district section design is the important component of signal system design, and the good or bad direct influence operation safety and operating efficiency of tie line district section design.
In the actual construction process, because of civil engineering reasons, a tie line can be designed into a crossover point, so that the distance of the tie line can be too short, and the situation of limit invasion or deadlock of a switch police mark at the tie line can be caused when the distance of the tie line is too short in the design process of a signal system, if the tie line between Zhengzhou subway 4 and Zhengzhou subway 16 is a crossover point, the distance of the tie line is about 125 m (from a switch point to a switch point), a line demarcation point is generally arranged in the middle of the tie line, so that the limit invasion exists in the design process of the signal system; if the connecting line section has axle counting disturbance (if metal objects pass through the axle counting equipment arranged beside the rail), the normal operation of the main line is influenced, and the main line train is late, so that passengers are not full.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a method for setting a short distance of an urban rail transit tie line.
The purpose of the invention can be realized by the following technical scheme:
an axle counting point setting method for short distance of urban rail transit tie line is to divide an turnout-free section after adding an axle counting point on the tie line and divide the turnout-free section into a common section, i.e. the occupation information of the common section is simultaneously output to two lines.
Preferably, the added axle counting point is installed and deployed by the line A, and in addition to the line occupation clearing relay interface, the line B is provided with the section occupation clearing relay interface.
Preferably, the distance between the axle counting points at both ends of the turnout section is greater than the minimum section length.
Preferably, the minimum section length is calculated according to vehicle and signal related parameters at the highest allowable speed of the train.
Preferably, the non-increased axle counting points in the turnout-free section are not within the range of the warning mark FoulingA and are more than a certain distance away from the warning mark FoulingA.
Preferably, the certain distance is the distance range within which the train is not allowed to turn the turnout, and the distance length is the sum of the back sliding distance of the train and the distance from the wheels to the head of the train.
Preferably, the backward sliding distance is calculated according to vehicle parameters, ATC parameters and project requirements.
Preferably, the method is applied to an automatic train control system, and the control system comprises an automatic train control subsystem ATC, an interlocking subsystem CI, an automatic train monitoring subsystem ATS, a maintenance support subsystem MSS and a data communication subsystem DCS, wherein the ATC subsystem comprises vehicle-mounted ATC equipment and trackside ATC equipment.
Preferably, the track information required by the interlocking subsystem CI is transmitted to the trackside ATC area controller through vehicle-to-ground wireless communication by the vehicle-mounted ATC equipment, and then transmitted to the interlocking subsystem CI; and the auxiliary track information is obtained by the interlocking subsystem CI through the safe relay acquisition axle counting system.
Compared with the prior art, the invention has the following advantages:
1. under the condition of short distance of the junctor, a part of turnout-free sections are set as shared sections, so that the intrusion limit is avoided, and the influence of interference on the axis counting point of the junctor on the operation of the main line is avoided;
2. the invention can avoid the disturbance of the connecting line axle counting point as much as possible and reset the axle counting during the operation, thereby reducing the time of breakdown first-aid repair and reducing the operation breakdown;
3. the invention can improve the reliability and the usability of the signal system and can improve the operation efficiency.
Drawings
FIG. 1 is a schematic diagram of a typical tie-line segment axle counting point arrangement;
FIG. 2 is a schematic diagram of an exemplary tie-line segment axle counting point arrangement after adding a turnout-free segment;
fig. 3 is a schematic diagram of arrangement of axle counting points after optimization of too short distance of the tie line.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, shall fall within the scope of protection of the present invention.
The invention relates to an axle counting point setting method for a short distance of an urban rail transit tie line, which is a section setting method for a signal system and comprises the following technical contents:
1) the signal system is a mobile block communication-based automatic train control system, and comprises an ATC (automatic train control) subsystem, a CI (interlocking) subsystem, an ATS (automatic train monitoring) subsystem, an MSS (maintenance support) subsystem and a DCS (data communication) subsystem; the ATC subsystem consists of vehicle-mounted ATC equipment and trackside ATC equipment;
2) the rail information required by the CI is transmitted to the on-rail ATC area controller through the vehicle-ground wireless network by the vehicle-mounted ATC equipment, and then is transmitted to the CI subsystem; the auxiliary track information is obtained by the CI through the safe relay to acquire the section occupation clearing information detected by the axle counting system;
2) the CI calculation section occupation clear is obtained by calculating the information obtained by 2 modes;
3) the on-track side ATC area controller acquires the position information transmitted by the train-ground wireless network through the vehicle-mounted ATC equipment on the one hand, receives the train occupation information acquired by the CI from the axle counting detection system acquired by the safety relay on the other hand, and judges whether the axle counting is effective or not by comparing the information on the two sides.
4) In general, when an axle counting disturbance fault occurs, an axle counting bypass of the disturbed fault is realized by the rail-side ATC area controller, but for a boundary section of a connecting line, the axle counting bypass of the boundary section is not allowed due to a line entrance, because for a non-communication train (a vehicle-mounted ATC device is not installed, or a train-ground wireless communication cannot work normally or other engineering vehicles), the rail-side ATC area controller cannot acquire a train position report through wireless, and only can acquire occupation information from an axle counting system through CI (common interface), the axle counting bypass of the boundary section is not allowed.
5) In general, a turnout connects a tie line boundary point and a main line, and when a section is designed, the tie line is divided into a turnout section consisting of three axle counting points as a boundary section, as shown in fig. 1;
6) aiming at the situation shown in the step 5 in FIG. 1, any one of three axle counting points of a turnout section is disturbed, so that the axle counting system outputs occupied turnout sections, the section is a connecting line boundary, and an ATC area controller beside a rail cannot bypass the axle counting, so that section information acquired from the axle counting system by a CI system is occupied, the turnout section is connected to a line main line, the section occupation causes the turnout to be incapable of rotating, and after the axle counting disturbed fault, the axle counting reset related operation is required to be carried out in the operation period; the normal operation is seriously influenced, the train interval is influenced, the train is late, and passengers are influenced.
7) In general, the optimization is carried out by adding an axle counting point to a tie line to divide a turnout section, wherein the turnout section is a tie line boundary, the turnout section is connected with a turnout section, the turnout section consists of two axle counting points, the turnout section consists of three axle counting points, as shown in figure 2,
8) the train wheels pass through the axle counting sensor, the axle counting sensor is connected to the axle counting system processor, the axle counting system calculates the safety relay, the safety relay is connected to the CI, the CI is transmitted to the ATC area controller beside the rail through the network, the actual occupied clear state of the train is transmitted to the CI and the ATC area controller beside the rail with a certain time delay, therefore, the axle counting detection that the train occupies a certain time for the interlocking calculation is carried out, the two axle counting points are arranged to meet the minimum distance requirement by combining some parameters of the vehicle and a signal system, and the minimum section length of the Zhengzhou subway No. 4 line is larger than 30 meters at the project required speed by calculation; due to the limitation requirement, the shaft counting point of the turnout zone close to the turnout zone is in the alarm mark, so that the limit invasion is caused, and when the boundary shaft counting is disturbed, the forward driving is influenced;
9) after optimization, the turnout-free section at the connecting line is divided into a common section, i.e. the section occupation information is simultaneously output to two lines, as shown in figure 3,
10) according to step 9, as in the case of fig. 3, the turnout-free section axle counting point may be installed and deployed by route a, and in addition to providing the present route occupancy clearing relay interface, one of the section occupancy clearing relay interfaces is provided to route B.
11) By adopting the optimized axle counting point setting scheme, the limit invasion can be avoided while ensuring that the connecting line has a turnout section, and the limit axle counting of the connecting line is disturbed without influencing the turnout section; the axle counting in the turnout section is disturbed, and because the turnout section is not a connecting line boundary, a bypass can be carried out, the axle counting reset related operation can be carried out after the operation is finished, and the main line operation cannot be influenced.
Fig. 1 is a typical arrangement scheme of tie line segment axle counting points, fig. 2 is a typical arrangement scheme of tie line segment axle counting points after a turnout-free segment is added, and fig. 3 is an arrangement scheme of axle counting points after optimization of a too short tie line distance.
1, setting typical junctor boundaries and axle counting points as shown in figure 1, wherein junctor boundary sections consist of axle counting points JZ01, JZ02 and JZ 03; the dividing point is at the middle point of a cross line turnout of a connecting line;
2, if any one of the axle counting points JZ01, JZ02 and JZ03 has a disturbed fault, the axle counting system outputs the occupied state of the whole turnout section, the turnout section is a boundary and cannot be bypassed by an ATC (automatic train control) area controller beside a rail, and the CI calculates that the section is occupied and influences the main line operation;
3, setting typical tie line boundaries and axle counting points as shown in fig. 2, adding an axle counting point JZ04 on the tie line, wherein a boundary section consists of axle counting points JZ03 and JZ 04; the dividing point is at the middle point of a cross line turnout of a connecting line;
4, the section length needs to meet the minimum distance requirement of axle counting arrangement, for the graph 2, the minimum section length is calculated under the highest allowable speed of the train according to the relevant parameters of the vehicle and the signal, and the arrangement of axle counting points JZ03 and JZ04 is greater than the minimum section length; causing the axle counting point JZ04 to be within the range of the police mark, and causing intrusion limit;
5, an axle counting point JZ03 and a JZ04 are disturbed, an output boundary section of an axle counting system is occupied, the section is a line boundary section and cannot be bypassed by an ATC (automatic train control) area controller beside a rail, and the section is occupied by CI (common interface) calculation, and a turnout invasion limit section is a turnout invasion limit section because the axle counting point JZ04 is in a police mark range, so that the accident of the turnout is caused by the occupation of the turnout invasion limit section, and the main line operation is influenced because the signal cannot be opened due to the fact that the turnout invasion limit section is occupied by the turnout occupation;
6, after optimizing the tie line, setting a turnout-free section consisting of axle counting points JZ03 and JZ04 as a shared section, a boundary point axle counting point JZ03 of the line A and a boundary point axle counting point JZ04 of the line A as shown in FIG. 3; in order to avoid installing axle counting points at two collinear sections, the axle counting points are provided by a line A, installed and maintained, and section information consisting of the axle counting points JZ03 and JZ04 is output to the line A and is also output to a line B;
7, the section length must meet the minimum distance requirement of axle counting arrangement, for fig. 3, according to the relevant parameters of the vehicle and the signal, under the highest allowable speed of the train, the minimum section length is calculated, and the arrangement of axle counting points JZ03 and JZ04 is greater than the minimum section length; the axle counting point JZ04 is not in the scope of the warning mark FoulingA, and the distance from the axle counting point JZ04 to the warning mark FoulingA is larger than the deadlock distance (if the line has a slope, the possibility that a train rolls back and runs side collision with a main line operation train is considered), so that the limit invasion is not caused, and the deadlock area is not caused;
8, an axle counting point JZ03 and a JZ04 are disturbed, an output boundary section of an axle counting system is occupied, the section is a line boundary section and cannot be bypassed by an ATC (automatic train control) area controller beside a rail, and the CI calculates that the section is occupied, and the occupation of a turnout-free section does not influence the handling of a main route passing through the turnout and the opening of a signal and does not influence the operation of the main route because the axle counting point JZ04 is not in the scope of a police mark and is not in the scope of a deadlock of the turnout;
and 9, the deadlock range 8 is obtained by calculating the distance between the back-sliding distance of the train and the distance between the wheels and the train head (if a counter wheel pair is allowed to be lost in consideration of an axle counting system, the distance between the second wheel and the train head) according to the vehicle parameters, the ATC parameters, the project requirement back-sliding triggering tight-braking distance and the like.
Under the condition of short distance of a connecting line, the design method is adopted, the influence of interference on the boundary axis counting on the main line operation is avoided, the fault rate can be reduced, and the system availability and the operation efficiency are improved; the design method is widely applied to urban rail transit lines of Zhengzhou, Beijing, Shanghai and the like.
While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. A method for setting axle counting point of short distance of urban rail transit tie line is characterized in that an axle counting point is added on the tie line, then a turnout-free section is divided, the turnout-free section is divided into a shared section, namely the occupation information of the shared section is simultaneously output to two lines.
2. The method as claimed in claim 1, wherein the added axle counting point is installed and deployed by line a, and an occupied clearing relay interface of the section is provided for line B in addition to the occupied clearing relay interface of the line.
3. The method as claimed in claim 1, wherein the distance between the axle counting points at the two ends of the turnout-free section is greater than the minimum section length.
4. The method for setting the axle counting point with the short distance of the urban rail transit tie line according to claim 1, wherein the minimum section length is calculated according to vehicle and signal related parameters at the highest allowable speed of a train.
5. The method for setting the axle counting point with the short distance of the urban rail transit tie line according to claim 1, wherein the non-increased axle counting points in the turnout-free section are not in a warning alarm beacon FoulingA range and are more than a certain distance away from the warning alarm beacon FoulingA.
6. The method for setting the axle counting point of the urban rail transit tie line with the short distance according to claim 5, wherein the certain distance is the sum of the back-sliding distance of the train and the distance from the wheels to the head of the train, the train is within the distance range, the turnout is not allowed to turn.
7. The method for setting the axle counting point with the short distance of the urban rail transit tie line according to claim 6, wherein the back-sliding distance is calculated according to vehicle parameters, ATC parameters and project requirements.
8. The method for setting the axle counting point with short distance of the urban rail transit tie line according to claim 1, is applied to an automatic train control system, wherein the automatic train control system comprises an automatic train control subsystem ATC, an interlocking subsystem CI, an automatic train monitoring subsystem ATS, a maintenance support subsystem MSS and a data communication subsystem DCS, wherein the ATC subsystem comprises vehicle-mounted ATC equipment and trackside ATC equipment.
9. The method for setting the axle counting point with the short distance of the urban rail transit tie line according to claim 8, wherein the rail information required by the interlocking subsystem CI is transmitted to the on-rail ATC area controller through vehicle-ground wireless communication by a vehicle-mounted ATC device, and then transmitted to the interlocking subsystem CI; and the auxiliary track information is obtained by the interlocking subsystem CI through the safe relay acquisition axle counting system.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911384280.XA CN111114586A (en) | 2019-12-28 | 2019-12-28 | Method for setting axle counting point with short distance of urban rail transit tie line |
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| CN201911384280.XA CN111114586A (en) | 2019-12-28 | 2019-12-28 | Method for setting axle counting point with short distance of urban rail transit tie line |
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| CN111114586A true CN111114586A (en) | 2020-05-08 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111845859A (en) * | 2020-07-24 | 2020-10-30 | 交控科技股份有限公司 | Driving control method, area controller and system for determining vehicle front screening result |
| CN112429039A (en) * | 2020-11-06 | 2021-03-02 | 卡斯柯信号有限公司 | Track section dividing method |
| CN113942550A (en) * | 2021-09-30 | 2022-01-18 | 交控科技股份有限公司 | Method and device for protecting lateral turnout intrusion limit of train |
| CN115195813A (en) * | 2022-06-06 | 2022-10-18 | 北京全路通信信号研究设计院集团有限公司 | Laser axle counting method and system |
-
2019
- 2019-12-28 CN CN201911384280.XA patent/CN111114586A/en active Pending
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| 周鹏飞，王琰: "道岔距离有效站台端部的距离研究", 《铁路通信信号工程技术》 * |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111845859A (en) * | 2020-07-24 | 2020-10-30 | 交控科技股份有限公司 | Driving control method, area controller and system for determining vehicle front screening result |
| CN111845859B (en) * | 2020-07-24 | 2022-02-15 | 交控科技股份有限公司 | Driving control method, area controller and system for determining vehicle front screening result |
| CN112429039A (en) * | 2020-11-06 | 2021-03-02 | 卡斯柯信号有限公司 | Track section dividing method |
| CN113942550A (en) * | 2021-09-30 | 2022-01-18 | 交控科技股份有限公司 | Method and device for protecting lateral turnout intrusion limit of train |
| CN115195813A (en) * | 2022-06-06 | 2022-10-18 | 北京全路通信信号研究设计院集团有限公司 | Laser axle counting method and system |
| CN115195813B (en) * | 2022-06-06 | 2023-06-30 | 北京全路通信信号研究设计院集团有限公司 | Laser axle counting method and system |
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Application publication date: 20200508 |