TWI681890B - Platform safety device including passenger and obstacle detection function - Google Patents

Abstract

The present invention discloses a platform safety device having a passenger and obstacle detection function and including: a plurality of elevating units mounted at selected portions between an entrance and an exit of the platform; at least two or more moving bodies movable in the elevating units along an up-down direction, a rope connected to the moving body and mounted along a horizontal direction; a motor that drives the moving body to move along the up-down direction; and a detection unit that controls the ascent and descent of the moving body when the rope collides with a passenger or an obstacle during the traveling of the rope. According to the present invention, when a passenger or obstacle collides with a rope that moves along the up-down direction is detected, the rope is immediately stopped or moved in the opposite direction so that an accident can be prevented in advance. In particular, unlike the prior art, the present invention does not frequently cause sensor malfunction or erroneous operation due to foreign matters, thereby ensuring the reliability of operation.

Description

Tram platform safety device including passenger and obstacle detection function

The present invention relates to a tram platform safety device that includes passenger and obstacle detection functions, and particularly relates to the ability to stop moving in a timely manner or move in the opposite direction when a moving rope collides with a passenger or obstacle, thus safety will occur The probability of accidents is reduced to a minimum including tram and platform safety devices (Rope Screen Door, RSD) for passengers and obstacle detection.

Referring to FIGS. 1 and 2, a conventional tram platform safety device includes: a plurality of lifting units 100, which are installed at selected portions between the entrance and the exit of the platform on which the tram enters; and the main body 120 is moved to be able to be inside the lifting unit 100 It is formed so as to move in the vertical direction; and, the rope 200 is installed along the horizontal direction so as to connect the moving bodies 120 to each other.

The lifting unit 100 forms a main body in the vertical direction. Rotating bodies 131 and 132 are mounted on the upper and lower sides of the main body, respectively, and a connecting body 133 is formed between the rotating bodies 131 and 132 and connected to the moving body 120. At the same time, a motor 130 is provided that drives the rotating bodies 131 and 132 to rotate to move the moving body 120 in the vertical direction.

By installing sensors such as infrared or laser on the inside or outside of the lifting unit 100, it is possible to detect unauthorized entry and exit of passengers and thereby prevent the occurrence of safety accidents.

However, the existing detection device may cause erroneous operation or malfunction of the sensor when foreign objects or the like are attached to the sensor or when the passenger pushes and pulls the rope 200, thereby causing a problem that the detection function cannot be performed normally. In particular, in the conventional method, passengers and obstacles are detected by the electrical structure. Therefore, there is a structural problem that obstacles cannot be detected when the power supply is interrupted or during maintenance. In addition, because in the existing method, when the moving rope 200 collides with a passenger or an obstacle, its impact force is directly transmitted to the passenger or the obstacle, so there is a serious problem that may cause injury or injury.

【Advanced technical literature】

【Patent Literature】

Korean Registered Patent No. 10-0601112 (2006.07.19)

Japanese Published Patent No. 2008-534827 (2008.08.28)

Korean Registered Patent No. 10-1143843 (2012.05.04)

Korean Published Patent No. 10-2014-0009813 (2014.01.23)

Korean Published Patent No. 10-2015-0013411 (2015.02.05)

Korean Published Patent No. 10-2015-0013410 (2015.02.05)

Korean Published Patent No. 10-2014-0007980 (2014.01.20)

Korean Registered Patent No. 10-1471543 (2014.12.11)

The purpose of the present invention is to solve this existing problem and to provide a tram platform safety device including passenger and obstacle detection functions, which can stop the rope in time when the rope collides with the passenger or obstacle during the movement of the rope in the up and down direction Or move in the opposite direction move.

In particular, another object of the present invention is to provide a safety device for a tram platform that includes passenger and obstacle detection functions, capable of displacement according to the torque of the motor or overload of the motor when the rope collides with the passenger or obstacle, Stop the rope in time or move in the opposite direction.

In addition, another object of the present invention is to provide a tram platform safety device including a passenger and obstacle detection function, which can detect the change in tension generated when the rope collides with the passenger or obstacle to stop the rope in time or Move in the opposite direction.

In order to achieve this object, the present invention can include: a plurality of lifting units installed at selected portions between the entrance and the exit of the tram entering the platform; at least two or more moving bodies to be able to move along the inside of the lifting unit It is formed by moving in the up and down direction; the rope is installed along the horizontal direction in such a way that the moving body is connected to each other; the motor is used to drive the moving body to move in the up and down direction; and, the detection section, during the movement of the rope In the event of a collision with a passenger or an obstacle, the movement of the moving body is controlled.

Wherein, the moving body can be respectively connected to rotating bodies formed with different diameters on the upper or lower part of the lifting unit, and when the rotating body rotates in the forward direction under the action of the motor, it moves in the upward direction, so that the rope They overlap each other and move in the downward direction during reverse rotation, so that the ropes are interlaced.

In addition, the detection unit can include a moving unit formed on one side of the moving body, and can use the up and down shaking that occurs when a collision with a passenger or an obstacle occurs during the movement of the rope to move the moving body up or down Move on the side; the control unit is used to cause the position change of the moving body that moves when the rope collides with a passenger or an obstacle The torque displacement value of the motor controls the position of the rope.

In particular, the moving unit can include a guide shaft formed through the moving body and capable of moving in the vertical direction, and a supporting portion that contacts and supports the lower surface of the moving body is provided at the lower portion, and The upper portion is coupled to one end of a connecting body that rotates by rotating the rotating body, and the lower portion of the support portion is coupled to the other end of the connecting body.

In addition, an auxiliary support portion that comes into contact with and presses down the upper surface of the moving body can be provided on the upper portion of the guide shaft, and between the support portion and the moving body and between the auxiliary support portion and the moving body Equipped with elastomers respectively.

In addition, the control unit memorizes the torque generated when the moving body and the rope move in the vertical direction without colliding with passengers or obstacles as a standard value. During the movement, the motor torque and the standard torque generated when a passenger or an obstacle collides are compared with each other. When it exceeds the error range, it is determined that the rope has collided with the passenger or the obstacle, so by controlling the motor The moving body and the rope are moved upward or downward.

In addition, the detection unit can include an overload detection sensor connected to the motor to detect overload of the motor generated when the rope collides with a passenger or an obstacle.

In addition, the detection section can include a tension detection sensor installed at the center or one end of the rope to detect a change in tension generated when the rope collides with a passenger or an obstacle.

The invention detects the rope when it collides with passengers or obstacles during the movement of the rope in the up and down direction, so that the rope can stop moving in time or move in the opposite direction To prevent safety accidents in advance. In particular, the present invention differs from the prior art in that it will not frequently cause malfunction or erroneous operation of the sensor due to foreign objects, thereby ensuring the reliability of the operation. In addition, the present invention can omit the weight detection device such as the existing touch lever installed at the lower part of the rope. In addition, the structure of the present invention is simple and convenient for maintenance, so that its durability and service life can be improved.

100‧‧‧lift unit

110‧‧‧support rod

120‧‧‧Moving subject

120a‧‧‧Through hole

130‧‧‧Motor

131, 132‧‧‧rotating body

133‧‧‧Connector

200‧‧‧Rope

300‧‧‧Mobile unit

310‧‧‧Guide shaft

311‧‧‧Support

312‧‧‧Auxiliary support

313‧‧‧Elastomer

400‧‧‧Control Department

410‧‧‧ Tension detection sensor

FIG. 1 is a front view schematically illustrating the structure of a conventional safety device for a tram platform.

FIG. 2 is an enlarged view for illustrating the main part of the existing tram platform safety device.

FIG. 3 is a front view schematically illustrating the configuration of a tram platform safety device including a passenger and obstacle detection function to which the present invention is applied.

4 and 5 are enlarged views for illustrating main parts of a tram platform safety device including a passenger and obstacle detection function to which the present invention is applied.

FIG. 6 is an enlarged view for illustrating the working state of the tram platform safety device including the passenger and obstacle detection function to which the present invention is applied.

The technical structure for achieving the purpose of the present invention will be described in more detail below with reference to the drawings.

FIG. 3 is a front view schematically illustrating the configuration of a tram platform safety device including passenger and obstacle detection functions to which the present invention is applied, and FIGS. 4 and 5 are used to include passengers and obstacles to which the present invention is applied. The main part of the tram platform safety device 6 is an enlarged view for illustrating the working state of the tram platform safety device including the passenger and obstacle detection function to which the present invention is applied.

The present invention includes: a plurality of lifting units 100, which are installed at selected portions between the entrance and the exit of the tram entering the platform; at least two or more moving bodies 120, capable of moving in the vertical direction inside the lifting unit 100 The rope 200 is installed along the horizontal direction in such a way that the moving body 120 is connected to each other; the motor 130 is used to drive the moving body 120 to move in the up and down direction; and, the detection unit is in the process of moving the rope 200 When a passenger or an obstacle collides, the movement of the moving body 120 is controlled. The moving body 120 can move in the up-down direction along the support rod 110 that serves as a guide.

The lifting unit 100 is a means for guiding the moving body 120 and the rope 200 so that it can move smoothly in the up and down direction. The rope 200 is a means for controlling the entry and exit of passengers, which is commonly used in related industries Technology, detailed description of its working principle and specific structure will be omitted here.

The plurality of moving bodies 120 are respectively connected to a plurality of rotating bodies 131 formed with different diameters at the upper or lower parts of the lifting unit 100, and when the rotating body 131 is rotated forwardly by the motor 130, the moving body 131 moves in the upward direction, thereby making The ropes 200 overlap each other, and when reversely rotated, move in the downward direction, so that the ropes 200 are interlaced.

In this way, the present invention can raise the moving body 120 and the rope 200 into an overlapping position under the action of the motor 130, thereby ensuring a passable height for passengers to pass through. On the contrary, when the moving body 120 and the rope 200 descend into Interlocking positions can block passengers from entering and exiting.

In addition, the detection section includes: a mobile unit 300 formed on a mobile body 120 Side, it is possible to use the up and down sway that occurs when a collision with a passenger or an obstacle occurs during the movement of the rope 200 to move the moving body 120 to the upper or lower side; The position of the rope 200 is controlled by the torque displacement value of the motor 130 caused by the change in the position of the moving body 120 that moves when the object collides.

In particular, the mobile unit 300 can guide the mobile body 120 to move in the up-down direction when the rope 200 moves up or down while colliding with a passenger or an obstacle, which is a torque that can be applied to the motor 130 by the control unit 400 Means to compare displacement values and use this to confirm whether passengers or obstacles are detected.

That is, at present, there is no safety device that can stop the rope from further moving upward or downward or control it when it collides with a passenger or an obstacle during the movement of the rope 200 upward or downward.

In this way, the present invention can use the moving unit 300 to move the rope 200 in the up-down direction when it collides with a passenger or an obstacle, and at the same time guide the motor 130 to respond immediately by displacing the torque of the motor 130, thereby enabling The rope 200 stops moving in time or moves in the opposite direction and thereby prevents the occurrence of safety accidents.

In particular, the rope 200 is made of a metal or synthetic resin material having a length of several meters to several tens of meters, and can play a role in explaining that the moving body 120 moves along with the elastic force swaying in the up and down direction when colliding with a passenger or an obstacle The unit 300 moves in the up-and-down direction, thereby smoothly measuring the very important auxiliary function of the torque displacement value of the motor 130.

If the rope 200 adopts the same way as the existing method of covering the door or the weight of the plate shape, it will be difficult to move the moving body 120 in the vertical direction when colliding with a passenger or an obstacle, so it is difficult to control the motor 130 Confirm the torque displacement value.

Please refer to FIGS. 3 and 4 at the same time. The mobile unit 300 includes a guide shaft 310 formed through the mobile body 120 and capable of moving in the up-down direction. The lower surface of the mobile body 120 contacts the lower surface of the mobile body 120 and performs The supporting portion 311 is supported, and the upper portion is coupled to one end of the connecting body 133 that rotates in a loop by connecting the rotating bodies 131 and 132, and the lower portion of the supporting portion 311 is coupled to the other end of the connecting body 133.

Among them, flywheels or pulleys of various specifications and forms can be used as the rotating bodies 131 and 132, and a chain or a belt can be used as the connecting body 133. As the motor 130, various types and structures of motors can be used and a speed reducer can be provided on one side, and a variable frequency motor or a variable frequency motor that can be controlled according to the torque that is displaced when the rope 200 and the moving body 120 move in the vertical direction can be used. servo motor.

In addition, the guide shaft 310 can be supported in the upward direction in a state where the support portion 311 is in contact with the lower surface of the moving body 120 in a normal state, and on the contrary, when the 120 moving body descends in the downward direction, it can pass through the rope 200 and The weight of the moving body 120 naturally moves.

However, if the rope 200 collides with an obstacle while moving in the downward direction, the moving body 120 will be supported and raised in the upward direction along the guide shaft 310, and at the same time, the moving body 120 will be formed downward The displacement value of the torque moved in the lateral direction causes the control unit 400 to stop the motor 130 or rotate it in the forward or reverse direction, thereby moving the rope 200 in the vertical direction.

On one side of the moving body 120, a through hole 120a including a bearing can be formed so that the guide shaft 310 is inserted into the inside thereof in the vertical direction and smoothly moves.

Please refer to FIG. 5, the upper part of the guide shaft 310 can also be equipped with a moving body 120 The auxiliary support portion 312 that contacts the upper surface of the moving body 120 and forcibly moves when it cannot be smoothly lowered downward by its own load.

An elastic body 313 is provided between the supporting portion 311 and the moving body 120 and between the auxiliary supporting portion 312 and the moving body 12, so that when an obstacle collides with the rope 200, the elastic body 313 can be arranged between the rope 200 and the moving body 120 It plays a buffer auxiliary role in the up and down direction. As the elastic body 313, compression springs having various specifications and elastic forces can be used.

The control unit 400 is used to stop or control the motor 130 according to the torque displacement value of the motor 130 generated when the moving body 120 moves in the up-down direction.

The control unit 400 as described above memorizes the torque generated when the motor 130 moves the moving body 120 and the rope 200 in the vertical direction without colliding with passengers or obstacles as a standard value. In the process of moving up and down, the torque of the motor 130 and the standard torque generated when a passenger or an obstacle collides are compared with each other. When it exceeds the error range, it is determined that the rope 200 has collided with the passenger or the obstacle, so The motor 130 controls to move the moving body 120 and the rope 200 in the upward direction or the downward direction.

That is, the control unit 400 memorizes the torque generated when the motor 130 normally moves up and down without colliding with a passenger or an obstacle as a standard value, and in this state, when the rope 200 moves up and down When colliding with a passenger or an obstacle during directional movement, the moving body 120 will move along the guide shaft 310 in the upward or downward direction together with the rope 200, and at the same time, the torque of the motor 130 will change abruptly and relative to the reference The torque of the value exceeds the error range, thereby confirming that a collision with a passenger or an obstacle has occurred.

The control unit 400 can include: a central calculation processing module for The torque of the value is saved and the error range is judged by comparison and calculation.

The control unit 400 can ignore the torque displacement value of the motor 130 caused by external shock or vibration, compare the torque displacement value of the motor 130 caused by the vertical movement when the rope 200 collides with a passenger or an obstacle, and compare Set the error range.

The control unit 400 can include: a flash memory (Flash Memory) or an erasable programmable read-only memory (EPROM), which sets and saves the standard value of torque.

In addition, in another embodiment of the detection unit to which the present invention is applied, it can further include: an overload detection sensor connected to the motor 130 to detect overload of the motor 130 generated when the rope 200 collides with a passenger or an obstacle .

In addition, in yet another embodiment of the detection part to which the present invention is applied, please refer to FIG. 4, which is characterized in that it further includes: a tension detection sensor 410, which is installed at the center or one end of the rope 200, and connects the rope 200 with passengers or The change in tension generated when an obstacle collides is detected.

In this way, referring to FIG. 6, when the rope 200 collides with a passenger or an obstacle while moving in the upward or downward direction, according to the motor 130 generated when the rope 200 and the moving body 120 move in the vertical direction The value of the torque displacement stops the operation of the motor 200, stops the rope or moves in the upward or downward direction, thereby minimizing the probability of a safety accident.

100‧‧‧lift unit

110‧‧‧support rod

120‧‧‧Moving subject

120a‧‧‧Through hole

133‧‧‧Connector

200‧‧‧Rope

300‧‧‧Mobile unit

310‧‧‧Guide shaft

311‧‧‧Support

410‧‧‧ Tension detection sensor

Claims (8)

A tram platform safety device including passenger and obstacle detection functions, characterized in that it includes: a plurality of lifting units, which are installed at a selected part between the entrance and exit of the tram entering the platform; at least two or more moving bodies, It is formed in such a way that it can move in the vertical direction inside the lifting unit; the rope is installed in the horizontal direction in such a manner as to connect the moving body to each other; the motor drives the moving body to move in the vertical direction; and, detection When the rope collides with a passenger or an obstacle during the movement of the rope, it controls the movement of the moving body. The tram platform safety device according to claim 1, characterized in that the moving body is connected to rotating bodies formed with different diameters on the upper or lower parts of the lifting unit, respectively, when the rotating body is under the action of the motor During forward rotation, the rope moves in the upward direction, so that the ropes overlap each other, and in reverse rotation, the rope moves in the downward direction, so that the ropes are interlaced. The tram platform safety device according to claim 1, characterized in that the detection unit includes: a moving unit formed on one side of the moving body, which can be used to collide with passengers or obstacles during the movement of the rope The up-and-down sway that occurs at the time causes the moving body to move up or down; the control unit, according to the torque displacement of the motor caused by the position change of the moving body moving when the rope collides with a passenger or an obstacle Value to control the position of the rope. The tram platform safety device according to claim 3, characterized in that the moving unit includes: a guide shaft to penetrate the moving body and be able to advance in the up and down direction It is formed in a row-moving manner. The lower part is provided with a supporting part that contacts and supports the lower surface of the moving body, and the upper part is combined with one end of a connecting body that rotates in a loop by connecting the rotating body. The lower part of the part is joined to the other end of the connecting body. The tram platform safety device according to claim 4, characterized in that an auxiliary support portion that contacts the upper surface of the moving body and presses down is provided on the upper portion of the guide shaft, and between the support portion and the moving body An elastic body is provided between the auxiliary support portion and the moving body, respectively. The tram platform safety device according to claim 3, characterized in that: the control unit causes the motor to move the moving body and the rope in the vertical direction without colliding with passengers or obstacles. The torque memory is a standard value. By comparing the motor torque and the standard torque generated when the rope moves in the up and down direction with a passenger or an obstacle, it is determined that the rope and the passenger or the When the obstacle collides, the moving body and the rope are moved in the upward or downward direction by controlling the motor. The tram platform safety device according to claim 1, characterized in that the detection unit includes: an overload detection sensor connected to the motor to overload the motor generated when the rope collides with a passenger or an obstacle Detection. The tram platform safety device according to claim 1, characterized in that the detection part includes: a tension detection sensor, which is installed at the center or one end of the rope and is generated when the rope collides with a passenger or an obstacle Tension changes are detected.

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