CN117166907A

CN117166907A - Electronic limit method for high-speed rail platform door

Info

Publication number: CN117166907A
Application number: CN202310577003.0A
Authority: CN
Inventors: 陈锦山; 林振龙; 刘王雍杰; 刘乐; 林颖艺; 王绍斌
Original assignee: Fujian Anlin Intelligent Science And Technology Co ltd; Gaohe'an Intelligent Technology Xiamen Co ltd
Current assignee: Fujian Anlin Intelligent Science And Technology Co ltd; Gaohe'an Intelligent Technology Xiamen Co ltd
Priority date: 2023-05-22
Filing date: 2023-05-22
Publication date: 2023-12-05

Abstract

The invention provides an electronic limit method for a high-speed rail platform door, which relates to the technical field of rail transit and comprises the following steps: s1: after the train is driven off, the pull rope descends to obtain the original height value of the pull rope; s2: judging whether to connect electricity or not; if yes, executing S3; otherwise, not executing the operation; s3: acquiring real-time offset of a pull rope; s4: judging whether the real-time offset is larger than a preset value, if so, driving the pull rope to return to the original height value; s5: judging whether the pull rope still does not return to the original height value within the preset time, and if so, driving the pull rope to return by applying force. The invention has high feasibility, adopts the pull rope type shielding door to lengthen the distance between the shielding door posts, is suitable for different requirements of different train door opening positions, reduces the energy consumption of the whole shielding door, adopts an electronic limiting mode after the shielding door is closed, adopts the electronic limiting to prevent people from pushing the shielding door when the shielding door is in an electrified state, does not limit when the shielding door is in a power-off state, and is convenient for emergency escape.

Description

Electronic limit method for high-speed rail platform door

Technical Field

The invention relates to the technical field of rail transit, in particular to an electronic limit method for a high-speed rail platform door.

Background

With the development of cities, there is an increasing demand for rail vehicles that receive transportation functions between cities and suburbs. Along with the diversified development situation of each region, the actual demands of the rail vehicles are quite different, subways (including underground railways and overground urban irons) inside cities, trains (including motor cars, high-speed rails and ordinary trains) between cities and the like are commonly called as rail transit vehicles.

The traffic on the platform of the rail transit vehicles is high in traffic flow, the rail transit running speed is high, and the shielding door is required to be arranged at the platform to separate platform personnel from the rail transit vehicles, so that danger caused by the unexpected falling of the platform personnel from the platform is avoided, the shielding door is matched with the train door to be opened and closed, convenience for boarding and disembarking passengers and the safety of platform falling prevention at ordinary times are ensured. For example, the invention patent CN107882470a discloses a method, a device and a storage medium for controlling the linkage of a train door and a platform screen door. The method comprises the following steps: determining a first absolute time for simultaneous control of the train door and the platform screen door at the target site; acquiring a first time required in the process from the sending of a door control instruction to the completion of control for a train door; acquiring a second time required for a platform screen door from the sending of a screen door control command to the completion of control; determining the time to be sent out of the vehicle door control instruction according to the first absolute time and the first time; determining the time to be sent out of the shielding door control instruction according to the first absolute time and the second time; and carrying out linkage control on the train door and the platform shielding door according to the time to be sent out of the door control command and the time to be sent out of the shielding door control command. The embodiment of the invention can realize the purpose of switching simultaneously, avoid potential safety hazards when passengers take trains, and improve user experience.

However, the control mode of the platform screen door still has the following problems: after the train shielding door is closed, in order to prevent pedestrians from touching or deliberately pushing the shielding door, the shielding door needs to be locked after being closed, but once the train occupant needs to escape in an emergency under the condition of power failure, the operation of unlocking the shielding door is complex, enough escape time cannot be reserved, and the safety is poor.

Therefore, in order to solve the above problems, it is necessary to design a reasonable and efficient electronic limit method for the platform door of the high-speed rail.

Disclosure of Invention

The invention aims to provide the electronic limit method for the high-speed rail platform door, which has high feasibility, adopts the pull rope type shielding door to lengthen the distance between the shielding door posts, is suitable for different requirements of different train door opening positions, reduces the energy consumption of the whole shielding door, adopts an electronic limit mode after the shielding door is closed, and adopts the electronic limit to prevent people from pushing the shielding door if the shielding door is in an electrified state, and does not limit if the shielding door is in a power-off state, so that emergency escape is convenient.

In order to achieve the above purpose, the invention is realized by adopting the following technical scheme:

the utility model provides a high-speed railway platform door electron limit method, is applicable to high-speed railway platform door structure, and the structure includes a plurality of stand and sets up the stay cord between two adjacent stands, be provided with on the stand be used for with the lift post that the stay cord is connected, the stand top is provided with and is used for driving the driver that the lift post goes up and down, the method includes following steps:

s1: after the train leaves the platform, the driving machine drives the lifting column and the pull rope to descend, and the obtained pull rope height value is recorded as an original height value;

s2: judging whether the driving machine is connected with a power supply or not; if yes, executing a step S3; otherwise, not executing the operation;

s3: acquiring real-time offset between the current height of the pull rope and an original height value in real time;

s4: judging whether the real-time offset is larger than a preset value, if so, driving the driving machine to work by the power supply so that the pull rope returns to the original height value; otherwise, not executing the operation;

s5: judging whether the pull rope still does not return to the original height value within a preset time, if so, increasing power to the driving machine according to the real-time offset so that the pull rope returns to the original height value; and otherwise, not executing the operation.

Preferably, the driving machine is electrically connected with a controller, and a height sensor electrically connected with the controller is arranged at the stay cord;

when the steps S1, S3 and S5 are executed, the current height of the pull rope is obtained through the height sensor and fed back to the controller.

Preferably, in the present invention, when step S2 is executed, it is determined whether or not the driving machine is connected to a power supply source; if yes, the controller is started, and the power supply supplies power for the controller.

Preferably, the driving machine is connected with a driving chain, one end of the driving chain is connected with the lifting column, and one end of the driving chain, which is far away from the lifting column, is connected with the balance weight; the lifting column is provided with a rotating roller and a sliding block used for being connected with the pull rope, the rotating roller is provided with a driving belt, one end of the driving belt is connected with the sliding block, and one end of the driving belt, which is far away from the sliding block, is connected with the upright column.

Preferably, the number of the sliding blocks and the pulling ropes is at least two, and the lowest sliding block is connected with the transmission belt.

As a preferable mode of the invention, when the step S1 is executed, after the train leaves the platform, the driving machine drives the lifting column and the pull rope to descend, and the lowest pull rope height value is obtained and recorded as the original height value;

when the step S3 is executed, the real-time offset between the current height of the lowest pull rope and the original height value is obtained in real time;

in performing steps S4 and S5, the power supply drives the drive machine to operate so that the lowermost pull cord returns to the original height value.

Preferably, in the present invention, when step S4 is executed, if the real-time offset is greater than a predetermined value, timing is started;

when the step S5 is executed, judging whether the pull rope returns to the original height value when the timing time reaches the preset time; if so, increasing power to the driving machine according to the real-time offset so that the pull rope returns to the original height value; and otherwise, not executing the operation.

Preferably, in the step S5, if the timing time reaches the predetermined time and the pull rope does not return to the original height value, the power of the driving machine is increased according to the real-time offset and the timing time value so that the pull rope returns to the original height value.

Preferably, the upright post is provided with a display screen.

Preferably, in the step S5, if the pull string does not return to the original height value within a predetermined time, an alarm is displayed on the display screen.

The electronic limit method for the high-speed rail platform door has the beneficial effects that: the shielding door has high feasibility, adopts the stay cord type shielding door to lengthen the distance between the shielding door posts, is suitable for different requirements of different train door opening positions, reduces the energy consumption of the whole shielding door, adopts an electronic limiting mode after the shielding door is closed, adopts electronic limiting to block people from pushing the shielding door open if the shielding door is in an electrified state, does not limit if the shielding door is in a power-off state, and facilitates emergency escape.

Drawings

FIG. 1 is a schematic flow chart of an electronic limit method for a high-speed rail platform door according to the present invention;

FIG. 2 is a schematic view of a shielding door in a method for electronic spacing of a high-speed rail platform door according to the present invention;

FIG. 3 is a schematic view of the structure of the post in the method for electronic spacing of the high-speed rail platform door according to the present invention;

FIG. 4 is a schematic diagram of a lift structure of a pull rope in a method for electronic limiting of a high-speed rail platform door according to the present invention;

in the figure: 1. column, 11, driving machine, 111, drive sprocket, 12, drive chain, 13, balancing piece, 14, display screen, 2, lifting column, 21, slider, 22, rotor roller, 23, driving belt, 3, stay cord.

Detailed Description

The following are specific examples of the present invention, and the technical solutions of the present invention are further described, but the present invention is not limited to these examples.

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the modules and structures set forth in these embodiments does not limit the scope of the invention unless specifically stated otherwise.

The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses.

Techniques, methods, and systems known to those of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the authorization specification where appropriate.

Embodiment one: as shown in fig. 1 to 4, which are only embodiments of the present invention, an electronic limit method for a high-speed rail platform door is applicable to a high-speed rail platform door structure, the structure includes a plurality of upright posts 1 and pull ropes 3 disposed between two adjacent upright posts 1, lifting columns 2 for connecting with the pull ropes 3 are disposed on the upright posts 1, driving machines 11 for driving the lifting columns 2 to lift are disposed at the top ends of the upright posts 1,

in the invention, the driver 11 controls the lifting column 2 to lift and drive the pull rope 3 to lift, thus completing the opening and closing of the shielding door.

When a train enters, the driving machine drives the lifting column 2 to lift, the shielding door is opened, and after the train exits, the driving machine controls the lifting column 2 to descend, and the shielding door is closed, so that pedestrians are prevented from falling down the platform through the shielding door.

In the invention, statistics is carried out on the door opening positions of different trains, upright posts 1 are respectively arranged at two sides of a plurality of groups of door opening positions, a pull rope 3 is arranged between the two upright posts 1 to form a shielding door structure, lifting columns 2 are arranged on the upright posts 1, sliding blocks 21 are arranged on the lifting columns 2, the lifting columns 2 can lift up and down along the upright posts 1, and the sliding blocks 21 can slide up and down on the lifting columns 2, so that the pull rope 3 can lift up and down, and at ordinary times, the sliding blocks 21 at the end parts of the pull rope 3 are positioned at the lower parts of the upright posts 1 to block the lower side areas between the two upright posts 1 to prevent personnel from falling down a platform; when a train is in, the sliding block 21 is lifted upwards, so that the pull rope 3 is positioned on the upper side between the two upright posts 1, the lower side of the pull rope 3 allows the train to get on or off, and the multiple groups of door opening positions of the train are positioned between the two upright posts, so that the train can get on or off normally no matter what type of train is opened.

Generally, the distance between two upright posts 1 is at least 9 m, and at least one door opening position of each train is included between the two upright posts, of course, the length of each train is very long, more upright posts 1 and more groups of pull ropes 3 are arranged for safety shielding of the whole platform, and the shielding door adopting the pull rope 3 structure is not only suitable for opening doors of different trains, but also the shielding door of the whole platform is lighter, and the opening and closing of the shielding door are more energy-saving.

The method comprises the following steps:

in other words, only in the power-on state of the driving machine, that is, when the driving machine is powered on normally, the following steps are executed to carry out electronic limit, otherwise, the driving machine is powered off and cannot carry out electronic limit, and people can push the shielding door open at will to carry out emergency escape.

the real-time offset should include an offset distance and an offset direction, and the real-time offset may be either a positive number or a negative number, with the offset direction being indicated by the positive or negative number, e.g., a real-time offset of +3, then being offset up by 3 cm, and a real-time offset of-5, then being offset down by 5 cm.

for example, the predetermined value is set to 10 cm, and once the offset distance is greater than 10 cm, there is a risk that pedestrians pass through to the train track, and electronic limit is required.

At this time, the driving machine starts to work, and drives the pull rope to return to the original height value, if the pull rope is upwards deviated by +15 cm, the driving machine drives the pull rope to downwards displace until the pull rope returns to the original height value.

Here, it is actually that the absolute value of the real-time offset is larger than a predetermined value.

For example, the preset time is set to 15 seconds, if the pull rope still does not return to the original height value after 15 seconds, the force for pushing the shielding door by people is large, the pull rope is forced to be driven by the force, so that the pull rope returns to the original height value, and because the pull rope offset is different, the dangerous degree is different, the power of the driving machine is required to be increased according to the real-time offset, so that the pull rope returns to the original height value, namely, the pull rope is pushed and pulled by the external force to the greater offset, the risk that the pedestrian passes through the shielding door is higher, and the pull rope returns to the original position due to the greater force trend is required to ensure the safety of the pedestrian.

Here, the driving machine 11 is electrically connected with a controller, and a height sensor electrically connected with the controller is arranged at the stay cord;

Of course, when executing step S2, determining whether the driving machine is connected with a power supply; if yes, the controller is started, and the power supply supplies power for the controller.

The height sensor is generally a built-in power supply, that is, when the height sensor is used for electronic limit, only weak current power supply is needed for the controller, whether the current pull rope is abnormal or not can be obtained in real time, and when the current pull rope is abnormal, electronic limit is carried out, so that the power consumption of the whole structure is low, and safety is guaranteed.

Embodiment two: as shown in fig. 1 to 4, which are only one embodiment of the present invention, in the first embodiment of the present invention, in the method for limiting a high-speed rail platform door, the driving machine 11 is connected with a driving chain 12, one end of the driving chain 12 is connected with the lifting column 2, and one end of the driving chain 12, which is far away from the lifting column 2, is connected with the counterweight 13; the lifting column 2 is provided with a rotating roller 22 and a sliding block 21 used for being connected with the pull rope 3, the rotating roller 22 is provided with a driving belt 23, one end of the driving belt 23 is connected with the sliding block 21, and one end of the driving belt 23, which is far away from the sliding block 21, is connected with the upright column 1.

When the pull rope 3 is lifted, the lifting column 2 is arranged on the upright column 1, a balance weight 13 is arranged on the upright column 1, a driving machine 11 and a driving chain 12 connected with the driving machine 11 are arranged at the top end of the upright column 1, one end of the driving chain 12 is connected with the lifting column 2, and one end of the driving chain 12, which is far away from the lifting column 2, is connected with the balance weight 13; thus, the driving machine 11 works to drive the driving chain 12 to transmit and drive the lifting column 2 to lift, when the driving machine 11 rotates forward, the lifting column 2 lifts, otherwise, when the driving machine 11 rotates reversely, the lifting column 2 falls, and the lifting column 2 and the balance block 13 are respectively arranged on two sides of the driving machine 11 to balance the lifting force of the lifting column 2, so that the lifting of the lifting column 2 can be completed by smaller power of the driving machine 11.

In addition, be provided with display screen 14 on the stand 1, display screen 14 is the ink screen, and the ink screen possesses lower energy consumption, only gives its weak electric current when screen display content changes can, need not the power consumption at ordinary times, and the power consumption of general ink screen is about 5 watts, compares in large-scale LED display screen, can be further make whole shield door structure energy-conserving effect better.

Based on the structure of the pull rope 3, the ink screen and the driving machine 11 with the balance weight 13, the power supply requirement of the whole upright post 1 is greatly reduced.

It should be noted that the lifting column 2 is provided with a rotating roller 22, the rotating roller 22 is provided with a driving belt 23, one end of the driving belt 23 is connected with the sliding block 21, and one end of the driving belt 23, which is far away from the sliding block 21, is connected with the upright column 1.

The sliding block 21 can slide along the lifting column 2, the rotating roller 22 is non-autonomous, the rotating power source of the rotating roller 22 is from lifting of the lifting column 2, when the driving machine 11 drives the lifting column 2 to lift, the upright column 1 descends relative to the lifting column 2, so that one end of the driving belt 23 connected with the upright column 1 moves downwards relative to the lifting column 2, and then the sliding block 21 naturally ascends relative to the lifting column 2 under the driving of the driving belt 23.

The slider 21 is connected to the end of the pulling rope 3, so that the pulling rope 3 has two stages of ascending when the driving machine 1 drives the ascending and descending column 2 to ascend.

In this way, the two-stage lifting structure is utilized to lift the pull rope 3 to finish the door opening and closing of the shielding door structure, and the lifting of the lifting column 2 is provided with the balance weight 13 to balance the weight, so that the driving machine 11 can drive the pull rope 3 to lift only with small power, and the energy-saving effect is good; the stay cord 3 rises and is convenient for the passenger to get on and off the train, and the stay cord descends and can effectively prevent personnel from falling off the platform, and the security is high.

Finally, the drive machine 11 is provided with a drive sprocket 111, and the drive chain 12 is in meshed connection with the drive sprocket 111.

Embodiment III: as shown in fig. 1 to 4, which are only one embodiment of the present invention, in the method for electronic limiting a high-speed rail platform door according to any one of the embodiments of the present invention, the number of the sliding blocks 21 and the pulling ropes 3 is at least two, and the lowest sliding block 21 is connected to the driving belt 23.

When the step S1 is executed, after the train leaves the platform, the driving machine drives the lifting column and the pull rope to descend, and the lowest pull rope height value is obtained and recorded as an original height value;

When the step S4 is executed, if the real-time offset is greater than the predetermined value, starting to time;

And when executing the step S5, if the timing time reaches the preset time and the pulling rope does not return to the original height value, increasing the power of the driving machine according to the real-time offset and the timing time value so that the pulling rope returns to the original height value.

Of course, the display screen 14 is disposed on the upright 1, and if the pull rope does not return to the original height value within the predetermined time when the step S5 is executed, an alarm is displayed on the display screen to remind the pedestrian to stop the abnormal behavior.

The electronic limit method for the high-speed rail platform door has high feasibility, adopts the pull rope type shielding door to lengthen the distance between the shielding door posts, is suitable for different requirements of different train door opening positions, reduces the energy consumption of the whole shielding door, adopts an electronic limit mode after the shielding door is closed, adopts the electronic limit to prevent people from pushing the shielding door when the shielding door is in an electrified state, does not limit when the shielding door is in a power-off state, and is convenient for emergency escape.

The present invention is not limited to the above-described specific embodiments, and various modifications and variations are possible. Any modification, equivalent replacement, improvement, etc. of the above embodiments according to the technical substance of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a high-speed railway platform door electron limit method, is applicable to high-speed railway platform door structure, and the structure includes a plurality of stand (1) and sets up stay cord (3) between two adjacent stand (1), be provided with on stand (1) be used for with stay cord (3) connected lift post (2), stand (1) top is provided with be used for driving lift post (2) go on drive machine (11);

the method is characterized by comprising the following steps:

2. The method for electronic limit of a high-speed rail platform door according to claim 1, wherein the method comprises the following steps:

the driving machine (11) is electrically connected with a controller, and a height sensor electrically connected with the controller is arranged at the stay cord;

3. The method for electronic limit of a high-speed rail platform door according to claim 2, wherein:

when executing the step S2, judging whether the driving machine is connected with a power supply or not; if yes, the controller is started, and the power supply supplies power for the controller.

4. The method for electronic limit of a high-speed rail platform door according to claim 1, wherein the method comprises the following steps: the driving machine (11) is connected with a driving chain (12), one end of the driving chain (12) is connected with the lifting column (2), and one end of the driving chain (12) away from the lifting column (2) is connected with the balance weight (13); be provided with rotor (22) and be used for with slider (21) that stay cord (3) are connected on elevating column (2), be provided with driving belt (23) on rotor (22), driving belt (23) one end with slider (21) are connected, driving belt (23) keep away from the one end of slider (21) with stand (1) are connected.

5. The method for electronic limit of the high-speed rail platform door according to claim 4, wherein the method comprises the following steps: the number of the sliding blocks (21) and the number of the pull ropes (3) are at least two, and the lowest sliding block (21) is connected with the transmission belt (23).

6. The method for electronic limit of the high-speed rail platform door according to claim 5, wherein the method comprises the following steps:

7. The method for electronic limit of a high-speed rail platform door according to claim 1, wherein the method comprises the following steps:

when executing the step S4, if the real-time offset is larger than the preset value, starting timing;

8. The method for electronic limit of a high-speed rail platform door according to claim 1, wherein the method comprises the following steps:

when step S5 is executed, if the timing time reaches the predetermined time and the pull rope does not return to the original height value, the power of the driving machine is increased according to the real-time offset and the timing time value so that the pull rope returns to the original height value.

9. The method for electronic limit of a high-speed rail platform door according to claim 1, wherein the method comprises the following steps: a display screen (14) is arranged on the upright post (1).

10. The method for electronic spacing of a high-speed rail platform door according to claim 9, wherein:

and when the step S5 is executed, if the pull rope does not return to the original height value within the preset time, an alarm is displayed on the display screen.