JP2011121750A - Elevator control system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To cope with an abnormal approach to a landing sidewall surface of a car door during operation of an elevator in an elevator control system. <P>SOLUTION: The elevator control system 10 includes: a car door side engagement part 32 arranged in the car door 34 and engaged with a landing door side engagement part 22; detection sensors 40, 44 placed at approach detection positions located on the upstream side of the operation relative to the position of the landing door side engagement part 22 located on the downstream side of the operation of a car 14, and outputting an approach detection signal when a space between the car door side engagement part 32 and the landing sidewall surface 13 is equal to or less than a safety space C<SB>0</SB>; and confirmation sensors 42, 46 arranged in a hoistway 12, that are placed at approach confirmation positions located on the downstream side of the operation from the approach detection positions and on the upstream side of the operation relative to the position of the landing door side engagement part 22 and output an approach confirmation signal when the space between the car door side engagement part 32 and the landing sidewall surface 13 is smaller than or equal to the safety space C<SB>0</SB>. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an elevator control system, and more particularly to an elevator control system that opens and closes by interlocking an elevator hall door and a car door as an engaged state.

  The landing door provided on the landing and the car door provided on the car are provided on the landing door side engaging portion provided on the surface facing the landing door and the surface facing the landing on the car door. It is opened and closed by interlocking with the car door side engaging portion as an engaged state. For example, when the car door is opened, the car door side engaging portion is engaged with the landing door side engaging portion, and the landing door is opened in conjunction with the car door side engaging portion. The same applies when closing.

  If the engagement between the car door side engaging portion and the landing door side engaging portion is not successful, the interlocking opening and closing of the car door and the landing door is hindered. Therefore, Patent Document 1 discloses that in an elevator door device, a door opening / closing speed control is performed by detecting a distance between a landing door side engagement element and a car door side engagement plate with a detector. In Patent Document 2, the relative distance between the car door and the landing door is detected by light as a safety device when a user in the car collides with the landing door when both the car door and the landing door are operating. Is disclosed. Patent Document 3 discloses a device for checking the distance between a landing door side engaging roller and a car door side vane as engaging means. Patent Document 4 discloses an elevator door control device that detects a moving position of a car door from a fully closed position by an engagement dimension measurement operation control circuit when measuring an engagement dimension. Patent Document 5 discloses an elevator door engagement device including a jig for checking the allowance of a car door side engagement piece and a landing door side engagement roller.

Japanese Patent No. 2504275 Japanese Patent No. 3156432 JP-A-10-114484 Japanese Patent Laid-Open No. 2002-3116 Japanese Patent Laid-Open No. 9-136781

  During operation of the car, the car door side engaging part is not engaged with the landing door side engaging part, but the car door side engaging part is on the landing side of the hoistway so as not to hinder the operation. Properly separated from the wall. However, if the car door gets too close to the landing side wall surface for some reason during the operation of the car, the car door side engaging part will contact the landing side wall surface of the hoistway or the landing side engagement. Engagement is not successful when approaching the part, and in some cases, the engaging part can be damaged. As such an abnormal approach of the car door to the landing side wall surface, for example, a case where an external pressure is applied to the car door from the inside of the car to the outside by a user inside the car can be considered. .

  Patent Documents 1 to 5 describe a problem with the engagement between the car door side engaging portion and the landing door side engaging portion itself, but the car door during the operation of the elevator is normally on the landing side wall surface. There is no mention of not approaching.

  An object of the present invention is to provide an elevator control system that can cope with an unusual approach of a car door to a landing side wall surface during operation of an elevator.

  The elevator control system according to the present invention engages a car door of a car and a landing door of a landing floor when a car that moves up and down in the hoistway of the building reaches a predetermined position on each landing floor of the building. An elevator control system that opens and closes a car door and a landing door in conjunction with each other, the car door side engaging portion that is provided on the car door and engages with the landing door side engaging portion provided on the landing door, A position that is separated by a preset detection margin from the position of the landing door side engaging portion on the downstream side of the operation to the upstream side of the operation for each time the operation of the car ascends and descends A detection sensor provided in a hoistway that is installed at an approach detection position and outputs an approach detection signal when the distance between the car door side engaging portion and the landing side wall surface is equal to or less than a predetermined safety interval; It is downstream from the approach detection position, The distance between the car door side engaging portion and the landing side wall surface is set at the approach confirmation position, which is a position separated from the position of the field door side engaging portion upstream of the operation by a predetermined confirmation margin distance. And a confirmation sensor provided in a hoistway that outputs an approach confirmation signal when the distance is equal to or less than a predetermined safety interval.

  The elevator control system further includes a control device that controls the operation of the elevator that raises and lowers the car as a whole. When the control device obtains an approach detection signal from the detection sensor, the car is in front of the approach confirmation position. It is preferable to include a decelerating stop processing unit that changes the operating speed of the car and decelerates the vehicle so that it can be temporarily stopped at the position.

  The elevator control system includes an output device provided in the car and capable of outputting an abnormality notification, and the control device acquires an approach detection signal from the detection sensor and transmits the abnormality notification to the output device. It is preferable that a part is included.

  Further, in the elevator control system, the control device resumes the operation of the car after transmitting the abnormality notification to the output device, and then when the access confirmation signal from the confirmation sensor is acquired, the car car door side It is preferable that an emergency stop processing unit for stopping the car is included so that the engaging unit can be stopped at a position before the engaging unit engages with the landing door side engaging unit.

  With the above configuration, the elevator control system is installed at the approach detection position that is a position separated by a preset detection margin distance from the position of the landing door side engaging portion on the downstream side of the operation to the upstream side of the operation, A detection sensor is provided in the hoistway that outputs an approach detection signal when the distance between the car door side engaging portion and the landing side wall surface is equal to or less than a predetermined safety distance. As described above, the approach detection signal is output when the distance between the car door side engaging portion and the landing side wall surface is equal to or less than the safety interval on the upstream side of the operation from the position where the landing door side engaging portion is provided. During the operation of the elevator, the car door can cope with an unusual approach to the landing side wall surface with a margin.

  In addition, a confirmation sensor is provided on the downstream side of the operation from the approach detection position. The confirmation sensor is installed at the approach confirmation position that is downstream of the approach detection position and is separated from the position of the landing door side engaging portion by the preset confirmation margin distance from the position of the operation upstream. When the distance between the car door side engaging portion and the landing side wall surface is equal to or less than a predetermined safety distance, an approach confirmation signal is output. In this way, the distance between the car door side engaging portion and the landing side wall surface is further downstream from the approach detection position and upstream from the position where the landing door side engaging portion is provided. Since the approach confirmation signal is output when the safety interval is less than or equal to the safety interval, the distance between the car door side engaging portion and the landing side wall surface will be checked twice during the operation of the elevator. Appropriately responds to unusual approaches.

  Further, in the elevator control system, when the approach detection signal from the detection sensor is acquired, the operation speed of the car is changed and decelerated so that the car can be temporarily stopped at a position before the approach confirmation position. In this way, when the car door makes an unusual approach to the landing side wall during elevator operation, the car is temporarily stopped at an appropriate position, so that the car door normally moves to the landing side wall during elevator operation. It is possible to cope with the approach that is not.

  Further, in the elevator control system, an approach detection signal from the detection sensor is acquired and an abnormality notification is transmitted to the output device. As a result, the user in the car can be informed of the situation. For example, when external pressure is applied to the car door from the inside to the outside of the car by the user in the car, the user knows the reason for the suspension Can be expected to remove.

  Further, in the elevator control system, after the abnormality notification is output to the output device, the operation of the car is resumed, and then the car is stopped when the approach confirmation signal is acquired from the confirmation sensor. Thus, it is possible to cope with an unusual approach of the car door to the landing side wall surface during the operation of the elevator.

It is a schematic block diagram of the elevator incorporating the elevator control system which is one Embodiment in embodiment which concerns on this invention. It is a figure which shows a mode that the car door side engaging part of a car door and the landing door side engaging part of a landing door engage. In the elevator control system of FIG. 1, it is a schematic block diagram when a car raises the floor. In the elevator control system of FIG. 1, it is a schematic block diagram when a passenger car descends. In the elevator control system of FIG. 1, it is a figure which shows the mode of the detection of the space | interval between the car door side engaging part and a landing side wall surface when a car door is a normal state. In the elevator control system of FIG. 1, it is a figure which shows the mode of the detection of the space | interval between the car door side engaging part and a landing side wall surface when a car door is in an abnormal state. 2 is a flowchart illustrating a procedure of elevator operation control in the elevator control system of FIG. 1. In the elevator control system of FIG. 1, it is a graph which shows the time passage in the elevator operation, and the state of the car.

  Embodiments according to the present invention will be described below in detail with reference to the drawings. Below, the case where a single door is used for the elevator door and the car door will be described, but other appropriate doors such as a double door may be used. Moreover, although the combination of a roller and a vane is demonstrated as an engaging part provided in a door, the landing side engaging part and car door side engaging part of structures other than this may be sufficient. As for the detection sensor and the confirmation sensor, a case where a transmission type optical sensor in which a light emitting element and a light receiving element are combined is used will be described. In addition, an appropriate sensor such as an ultrasonic sensor or a magnetic sensor other than the optical sensor can be used.

  In addition, the dimensions, the shape of the object, the operation speed, and the like described below are an example for facilitating the understanding of the present invention, and the specific shape, numerical value, direction, and the like are the use, purpose, and purpose of the elevator. It can be appropriately changed according to the specification.

  Below, the same code | symbol is attached | subjected to the same element in all the drawings, and the overlapping description is abbreviate | omitted. In the description in the text, the symbols described before are used as necessary.

   FIG. 1 is a diagram illustrating a configuration of an elevator control system 10. The elevator control system 10 includes a building 11, a hoistway 12, a landing side wall surface 13, a driving unit 64, a control device 50, a monitoring center 62, a landing floor 16, a car 14, and an output device 18. The landing door 24, the landing door side engaging portion 22, the car door 34, the car door side engaging portion 32, detection sensors 40 and 44, and confirmation sensors 42 and 46 are configured.

  The elevator control system 10 has a function of controlling the operation of an elevator that opens and closes by interlocking the elevator door 24 and the car door 34 in an engaged state. In particular, the car 14 operates in the hoistway 12. When the vehicle door 34 is engaged, operation control of the car 14 is performed when the distance between the car door side engaging portion 32 that is an engaging portion on the car door 34 side and the landing side wall surface 13 in the hoistway 12 is not normal. It has a function.

  In FIG. 1, the XYZ axes are also shown. The X axis indicates the direction from the landing floor 16 toward the hoistway 12, and the Y axis indicates the direction in which the landing door 24 moves from right to left as viewed from the landing floor 16. The Z axis indicates the direction in which the car 14 is directed from bottom to top in the hoistway 12.

  The hoistway 12 is a space penetrating the building 11 from the top floor to the bottom floor, and the car 14 moves up and down in this space.

  The drive unit 64 is a hoisting rope hoisting machine or the like provided on the roof of the building 11 at the uppermost part of the hoistway 12, for example, and has a function of elevating the car 14 under the control of the control device 50.

  The car 14 is a moving car in which a user can be placed in the internal space, and has a destination registration operation panel that can specify a desired floor desired by the boarded user.

  The car door 34 is, for example, a single door and is provided in the car 14 and is a door through which a user enters and exits the car 14. The car door 34 is opened and closed by a door opening / closing device (not shown).

  The output device 18 is in the car 14, and transmits information to the users in the car 14 by image display or voice display. For example, a display or a speaker can be used.

  The landing floor 16 is an elevator hall provided on each floor in the building 11 and has a call button for calling the car 14 on the floor.

  The landing door 24 is provided on the landing floor 16 that is an elevator hall, and opens and closes in conjunction with the opening and closing of the car door when the car 14 arrives at the landing floor 16 so that the user can enter and exit from the car 14. It is a door.

  The landing door side engaging portion 22 is a pair of rollers provided on a surface of the landing door 24 that faces the car door 34 side. The landing door side engaging portion 22 is engaged with the car door side engaging portion 32 and has a function of opening and closing the landing door 24 in conjunction with opening and closing of the car door 34.

  The car door side engaging portion 32 is a member that is provided on a surface of the car door 34 that faces the landing door 24 side and enters between a pair of rollers of the landing door side engaging portion 22. This member is sometimes called a vane. The car door side engaging portion 32 has a function of opening and closing the landing door 24 in conjunction with the landing door side engaging portion 22 as an engaged state.

  The manner in which the car door side engaging portion 32 of the car door 34 and the landing door side engaging portion 22 of the landing door 24 are engaged will be described with reference to FIG. When the car door 34 and the landing door 24 are opposed to each other, the landing door side engagement provided on the landing door 24 on both sides of the vane which is the car door side engaging portion 32 provided on the car door 34 as described above. A pair of rollers which are part 22 is installed.

  For example, when the car 14 stops at the landing floor 16 and the car door 34 opens to the right along the Y direction, the car door side engaging portion 32 contacts the right roller as the landing door side engaging portion 22. Then, the landing door 24 also opens to the right along the Y direction in conjunction with the engaged state. Further, when the car door 34 closes to the left along the Y direction, the car door side engaging portion 32 comes into contact with the left roller which is the landing door side engaging portion 22, and the landing door 24 is also interlocked as an engaged state. It closes to the left along the Y direction.

Returning to FIG. 1 again, the detection sensors 40 and 44 are provided in the hoistway 12, and the landing door side station on the downstream side of the operation when the operation of the car 14 goes up and down. The distance between the car door side engaging portion 32 and the landing side wall surface 13 is set at an approach detection position that is a position separated by a preset detection margin distance from the position where the joint portion 22 is provided to the upstream side of the operation. C has a function of outputting the approach detection signal when: safety distance C ₀ defined in advance. The details of the detection margin distance will be described later.

The confirmation sensors 42 and 46 are provided in the hoistway 12 on the downstream side of the operation from the approach detection position, and the upstream of the operation from the position where the landing door side engaging portion 22 is provided using a preset confirmation margin distance. is installed in proximity check position is confirmed margin distance away to the side, outputs an approach confirmation signal when the interval C is the safety distance C ₀ following between the car door side engaging portion 32 and the landing-side wall surface 13 It has the function to do. The details of the confirmation margin distance will be described later.

  Next, the detection sensors 40 and 44 and the confirmation sensors 42 and 46 will be described with reference to the positional relationship of the sensors installed on the Nth floor, for example, with the landing floor 16 as the Nth floor. Two detection sensors 40 and 44 and two confirmation sensors 42 and 46 are installed on the inner wall of the hoistway 12 corresponding to the height from the floor of the Nth floor to the floor of the next floor, the N + 1 floor. Yes. One detection sensor 40 for descending to the Nth floor, one confirmation sensor 42 for descending to the Nth floor, one confirmation sensor 46 for ascending to the Nth floor, and ascent to the N + 1th floor This is one detection sensor 44 for use. The arrangement relationship between the detection sensors 40 and 44 and the confirmation sensors 42 and 46 will be described later with reference to FIGS.

  The control device 50 has a function of controlling the operation of the elevator that raises and lowers the car 14 as a whole. The control device 50 can be configured by a computer, and includes an approach detection signal acquisition processing unit 52, a deceleration stop processing unit 54, an abnormality notification processing unit 56, an approach confirmation signal acquisition processing unit 58, and an emergency stop processing unit 60. Composed.

  The approach detection signal acquisition processing unit 52 has a function of acquiring an approach detection signal from the detection sensors 40 and 44.

  When the approach detection signal acquisition processing unit 52 acquires the approach detection signal from the detection sensors 40 and 44, the deceleration stop processing unit 54 detects so that the car 14 can be temporarily stopped at a position before the approach confirmation position. It has a function of changing the operation speed of the car 14 from the position of the sensors 40 and 44 to decelerate.

  The abnormality notification processing unit 56 has a function of acquiring an approach detection signal from the detection sensors 40 and 44 in the approach detection signal acquisition processing unit 52 and transmitting the abnormality notification to the output device 18 after processing in the deceleration stop processing unit 54.

  The approach confirmation signal acquisition processing unit 58 has a function of acquiring an approach confirmation signal from the confirmation sensors 42 and 46.

  The emergency stop processing unit 60 has a function of stopping the car 14 when the approach confirmation signal acquisition processing unit 58 acquires the approach confirmation signals from the confirmation sensors 42 and 46.

  The functions of the approach detection signal acquisition processing unit 52, the deceleration stop processing unit 54, the abnormality notification processing unit 56, the approach confirmation signal acquisition processing unit 58, and the emergency stop processing unit 60 can be realized by executing software. Specifically, it can be realized by executing an elevator operation control program.

  The monitoring center 62 is a remote monitoring center that is provided in the building 11 or in another remote facility and is connected to the control device 50 via a communication line or the like and monitors the operation state of the elevator. Here, in particular, the emergency stop processing unit 60 has a function of receiving an emergency stop notification. As a result, it is possible to appropriately perform the following correspondence.

  Next, the arrangement relationship of each sensor will be described with reference to FIGS. 3 and 4 are schematic configuration diagrams in the YZ plane in the hoistway 12.

FIG. 3 shows a situation when the car 14 rises. In FIG. 3, the ascending detection sensor 44 is U1, and the ascending confirmation sensor 46 is U2. Here, when the height from the floor surface of the landing floor 16 to the floor surface of the next landing floor 16 is 3000 mm and the normal operation speed v _{0 of the} car 14 is 6000 mm / min, the car 14 is decelerated, It is assumed that a distance between 1600 mm and 1700 mm is required before stopping thereafter.

U1 which is the detection sensor 44 for ascending to the Nth floor is installed on the 1800 mm upstream side of the operation, that is, on the (N-1) th floor side from the landing door side engaging portion 22 on the Nth floor based on the above conditions. By setting the speed to 1800 mm, if the vehicle is decelerated from the normal operation speed v ₀ of the car at this point, the floor can be stopped before 1600 mm to 1700 mm. Accordingly, the car 14 can be stopped at a position before the car door side engaging portion 32 of the car 14 is engaged with the landing door side engaging portion 22. In this sense, 1800 mm can be set as the detection margin distance.

U2 which is a confirmation sensor 46 for ascending to the Nth floor is 150 mm upstream of the operation from the Nth floor landing door side engaging portion 22 installed on the inner wall of the hoistway 12 corresponding to the Nth floor, that is, N− Installed on the first floor. Assuming that the car 14 is operating at the operation speed v ₂ = 300 mm / min at the approach confirmation position, if the car 14 is stopped at the operation speed v _{2 of the} car 14 at this point, the car of the car 14 The door side engaging portion 32 can be stopped at a position before the door side engaging portion 22 engages with the landing door side engaging portion 22. In this sense, this 150 mm can be called a confirmation margin distance. The operation speed of the car 14 will be described in detail with reference to FIG.

FIG. 4 shows a situation when the car 14 descends. In FIG. 4, the detection sensor 44 for lowering is U1, and the confirmation sensor 46 for lowering is U2. Here, the direction of operation is different from that at the time of ascending, but similarly, the height from the floor of the landing floor 16 to the floor of the next landing floor 16 is 3000 mm, and the normal operation speed v _{0 of the} car 14 is. When 6000 mm / min, it is assumed that a distance between 1600 mm and 1700 mm is required until the car 14 decelerates and then stops.

The detection sensor 40 for descending to the Nth floor is installed on the 1800 mm upstream side of the operation, that is, on the (N + 1) th floor side from the landing door side engaging portion 22 on the Nth floor based on the above conditions. By setting the speed to 1800 mm, if the vehicle is decelerated from the normal operation speed v ₀ of the car at this point, the floor can be stopped before 1600 mm to 1700 mm. Accordingly, the car 14 can be stopped at a position before the car door side engaging portion 32 of the car 14 is engaged with the landing door side engaging portion 22. In this sense, the detection margin distance can also be set to 1800 mm.

U2 which is a confirmation sensor 46 for descending to the Nth floor is 150 mm upstream from the Nth floor landing door side engaging portion 22 installed on the inner wall of the hoistway 12 corresponding to the Nth floor, that is, the N + 1th floor Installed on the side. Assuming that the car 14 is operating at the operation speed v ₂ = 300 mm / min at the approach confirmation position, if the car 14 is stopped at the operation speed v _{2 of the} car 14 at this point, the car of the car 14 The door side engaging portion 32 can be stopped at a position before the door side engaging portion 22 engages with the landing door side engaging portion 22. In this sense, this 150 mm can be referred to as a confirmation margin distance.

  Next, the approach detection signals of the detection sensors 40 and 44 and the approach confirmation signals of the confirmation sensors 42 and 46 will be described with reference to FIGS. Since the detection sensors 40 and 44 and the confirmation sensors 42 and 46 have the same configuration, the detection sensor 40 will be described below as a representative.

FIG. 5 shows that the car door 34 is in a normal state, that is, the car door side engaging part 22 and the car door when the car door side engaging part 32 keeps a safe distance C ₀ with respect to the hall side wall surface 13. 4 is an XY plan view showing a relative relationship with a side engagement portion 32. FIG. When the car 14 take the hoistway 12 is Fukai, the relationship between the distance C and the safety distance C ₀ between the car door side engaging portion 32 and the landing-side wall surface 13 is C> C _0.

The landing side wall surface 13 is a wall surface on the landing floor 16 side of the hoistway 12 and is the closest wall surface closest to the car 14. In some cases, it may be the wall surface of the landing door 24. The safety interval C ₀ is determined by the size, installation position, etc. of the car door side engaging portion 32 or the landing door side engaging portion 22, and an appropriate interval such as 30 mm or 10 mm is set based on the design of the elevator. can do. In the following, for example, when the safety interval C ₀ is 30 mm, the installation position is the inner wall of the hoistway 12 and the left and right walls of the wall where the landing door 24 is provided are located 30 mm away from the landing side wall surface 13. Can do. Moreover, you may install using a suitable jig so that it may not interfere with the opening and closing of a door in the wall in which both sides of the landing door 24 are provided.

When the detection sensor 40 is a transmissive optical sensor, a light emitting element is disposed on the left side of the landing door 24 and a light receiving element is disposed on the right side. In the case of FIG. 5, since C> C ₀ , the car door side engaging portion 32 does not block from the light emitting element side toward the light receiving element side at a position 30 mm away from the landing side wall surface 13 along the Y direction. The light advances. Therefore, the approach detection signal is not output.

6, when the car door 34 is in an abnormal state, that your door Toka hall door side engaging portion 22 when the car door side engaging portion 32 approaches the safety clearance C ₀ or less with respect to the landing side wall 13 4 is an XY plan view showing a relative relationship with a side engagement portion 32. From the state where the car door side engaging portion 22 descends in the hoistway 12 at C> C ₀ shown in FIG. 5, in FIG. 6, the car door side engaging portion 32 moves to the landing side wall surface at a safety interval C ₀ or less. The position of C ≦ C _{0 that} is close to is lowered. In the case of FIG. 6, since C ≦ C ₀ , the car door side engaging portion 32 is on the path of light traveling from the light emitting element side toward the light receiving element side at a position 30 mm away from the landing side wall surface 13 along the Y direction. Because there is, light is blocked. Accordingly, an approach detection signal is output, and the approach detection signal output at this time is transmitted to the control device 50. In the case of the confirmation sensor 44, an approach confirmation signal is output.

  The operation of the above configuration will be described in detail below with reference to FIGS. FIG. 7 is a flowchart showing a procedure of elevator operation control that opens and closes by interlocking the elevator door 24 and the car door 34 in an engaged state. FIG. 8 is a time chart showing the passage of time in the elevator operation and the position state of the car. Here, the time change of the position along the Z axis of the car 14 toward the landing floor 16 on the Nth floor is shown. Yes. Here, the horizontal axis is time, and the vertical axis is position. Although the unit is arbitrary, for example, the horizontal axis time can be minutes, and the vertical axis position can be mm.

  FIG. 7 is a flowchart showing the procedure of the elevator operation control as described above, but each procedure corresponds to each processing procedure of the elevator operation control program. In FIG. 7, when the elevator control system 10 is activated, the elevator operation control program is started and initial conditions are set. Thereafter, an operation is performed in which the car 14 moves up and down in the hoistway 12 according to a user's instruction or the like (S10).

Now, the case where the floor is ascending from the lower floor with the N floor as the stop target floor of the user will be described. As illustrated in FIG. 3, for example, the floor is elevated at the car operating speed v ₀ = 6000 mm / min. , Heading to U1, which is the detection sensor 44 on the (N-1) th floor. When the car 14 arrives at the position U1, which is the detection sensor 44, it is determined whether or not an approach detection signal from the detection sensor 44 has been acquired (S12). This procedure is executed by the function of the approach detection signal acquisition processing unit 52 of the control device 50.

Specifically, as described with reference to FIGS. 5 and 6, it is determined whether or not the distance C between the car door side engaging portion 32 and the landing side wall surface 13 is equal to or less than the safety distance C ₀ . When the relationship between the car 14 and the landing side wall surface 13 is in the state of FIG. 6, the determination in S12 is affirmed, and in the state of FIG. 5, the determination in S12 is negative.

  If the determination is negative in S12, the state of the car 14 is normal (S28). At this time, it proceeds toward the position of the Nth floor landing floor 16 and stops there, and the car door 34 and the landing door 24 open in conjunction with each other. Thereafter, the process returns to S10, and if there is an instruction to another floor by the user, the operation is continued.

If the determination in S12 is affirmative, deceleration stop is performed (S14). This procedure is executed by the function of the deceleration stop processing unit 54 of the control device 50. Specifically, the operation speed of the car 14 is changed and decelerated so that the car 14 can be temporarily stopped at a position before the approach confirmation position. For example, the operation speed of the car 14 is reduced by changing the operation speed from the normal operation speed v ₀ to the decelerated operation speed v ₁ .

These states are shown in FIG. That starting from arbitrary time t _0, as came to the position of the sensor 44 approaches the detection position in time t _1, until time t _1, operation speed of the car 14 is at a normal operating speed v ₀ is there.

It determined in S12 whether or not acquired the approach detecting signal is performed at time t _1. If the determination is negative, as shown by the broken line in FIG. 8, the car 14 continues to operate, arrives at the Nth floor landing floor 16 at time t ₂ and stops there at an appropriate speed control or the like. . If the determination is affirmative, the operation speed of the car 14 is changed to the deceleration operation speed v ₁ after time t ₁ . The car 14 is stopped at time t ₃ by appropriate speed control from the operation speed v ₁ . Since the deceleration operation speed v ₁ is lower than the normal operation speed v ₀ , the car 14 stops at a position before the position of the landing floor 16 on the Nth floor. In other words, the car 14 performs a so-called inter-story stop by this deceleration process.

  Returning to FIG. 7 again, in a state where the car 14 is stopped in S14, an abnormality notification is transmitted to the users in the car 14 by at least one of image display and sound display on the output device 18 in the car 14. The output is displayed for the purpose (S16). This procedure is executed by the function of the abnormality notification processing unit 56 of the control device 50. Specifically, the output device 18 displays “A car door 34 abnormality has been detected. Please wait for a while” in at least one of image display and audio display.

  In addition, if it is considered that an abnormal approach of the car door 34 to the landing side wall surface 13 is caused by a user in the car 14, "An abnormality of the car door 34 has been detected. If it is in contact with the door 34, please leave the car door 34 and wait for a while. "May be displayed.

  This is because, as an example in which an abnormal approach of the car door 34 to the landing side wall surface 13 may occur, a user in the car 14 pressures the car door 34 artificially from the inside to the outside of the car 14. This is because there is a possibility of applying. The elevators are designed to operate safely and are inspected and maintained. Therefore, the car door 34 does not come into contact with the landing side wall surface 13 as long as the user in the car 14 lightly presses the car door 34 from the inside to the outside of the car. However, when a user in the car 14 applies pressure to the car door 34 from the inside to the outside of the car 14 for some reason, the car door 34 may approach the landing side wall surface 13 in some cases. For example, the car door side engaging part 32 may collide with equipment such as the landing door 24, the landing door side engaging part 22 and the internal interlock, and the equipment may be damaged. In such a case, the display of S16 is considered to be effective in alerting the user and stopping the application of pressure to the car door 34, for example.

After waiting for an appropriate time performs display, car 14 ride again to start the operation at creep operating speed v ₂ (S18). Car speed v ₂ of the car at the time of the slow speed operation may, for example, approximately 300 mm / min. That is, the car 14 heads for the Nth floor landing floor 16. On the way, when the car 14 reaches the position U2 as the confirmation sensor 46, it is determined whether or not an approach confirmation signal from the confirmation sensor 46 has been acquired (S20). This procedure is executed by the function of the approach confirmation signal acquisition processing unit 58 of the control device 50.

Specifically, as described with reference to FIGS. 5 and 6, it is determined whether or not the distance C between the car door side engaging portion 32 and the landing side wall surface 13 is equal to or less than the safety distance C ₀ . When the relationship between the car 14 and the landing side wall surface 13 is in the state of FIG. 6, the determination in S20 is affirmed, and in the state of FIG. 5, the determination in S20 is negative.

  If the determination in S20 is negative, the state of the car 14 has returned to normal, so continue slowing down as it is (S26), and normally (S28) to the position of the landing floor 16 on the Nth floor. The car door 34 and the landing door 24 open in conjunction with each other. Thereafter, the process returns to S10, and if there is an instruction to another floor by the user, the operation is continued.

  If the determination in S20 is affirmative, the unusual approach of the car door 34 to the landing side wall surface 13 is still continuing, so it is not preferable to continue the operation of the car 14. Therefore, an emergency stop is performed (S22). This procedure is executed by the function of the emergency stop processing unit 60 of the control device 50. Specifically, when the approach confirmation signal is acquired, a process of stopping the car 14 is performed. As a result, the vehicle stops before the landing floor 16 on the Nth floor.

  After the emergency stop, the control device 50 transmits information that the car 14 is closer to the landing side wall surface 13 than usual to the monitoring center 62 (S24).

These states are shown in FIG. That is, the operation is temporarily stopped at time t ₃ , and abnormality notification output is performed there. Then, the description to display the status to the user in the car 14, at an appropriate time, at time t _4, the car 14, resume the crawl operation in the operating speed v _2. Operating speed v ₂ is further slower than car speed v _1.

Decision step S20 whether or not acquired the approach confirmation signal is performed at time t _5. When determination is negative, as indicated by a broken line in FIG. 8, the cage 14 continues as it is operated by a suitable speed control, etc., to arrive to where stopping the landing floor 16 of the N floor time t ₆ . When determination is affirmative, the stop process with respect to the cage 14 at time t ₅ is performed. As a result, the distance required for the stop determined by the speed at that time is advanced, and the car 14 stops at a position before the position of the landing floor 16 on the Nth floor.

  By these, it can respond to the car door during the operation of the elevator approaching the landing side wall surface unusually.

  The elevator control system according to the present invention relates to an elevator control system that opens and closes by interlocking an elevator hall door and a car door as an engaged state.

  DESCRIPTION OF SYMBOLS 10 Elevator control system, 11 building, 12 hoistway, 13 landing side wall surface, 14 passenger car, 16 landing floor, 18 output device, 22 landing door side engaging part, 24 landing door, 32 car door side engaging part, 34 Car door, 40, 44 detection sensor, 42, 46 confirmation sensor, 50 control device, 52 approach detection signal acquisition processing unit, 54 deceleration stop processing unit, 56 abnormality notification processing unit, 58 approach confirmation signal acquisition processing unit, 60 emergency stop Processing unit, 62 monitoring center, 64 drive unit.

Claims (4)

When the car that moves up and down in the hoistway of the building reaches a predetermined position on each landing floor of the building, the car door and the landing door on the landing floor are engaged to engage the car door and the landing door. An elevator control system that opens and closes,
A car door side engaging portion that is provided on the car door and engages with a landing door side engaging portion provided on the landing door;
For each of the time when the operation of the car goes up and down, the position of the landing door side engaging part on the downstream side of the operation is separated by a preset detection margin distance from the upstream side of the operation. A detection sensor installed in a hoistway that is installed at an approach detection position that is a position and outputs an approach detection signal when the distance between the car door side engaging portion and the landing side wall surface is equal to or less than a predetermined safety interval; ,
The car door is installed at the approach confirmation position downstream of the approach detection position and separated from the position of the landing door side engaging portion by the preset confirmation margin distance from the upstream position of the service. A confirmation sensor provided in a hoistway that outputs an approach confirmation signal when the distance between the side engagement portion and the landing side wall surface is equal to or less than a predetermined safety distance;
An elevator control system comprising: The elevator control system according to claim 1,
It has a control device that controls the operation of the elevator that raises and lowers the car as a whole,
The control device
It includes a deceleration stop processing unit that changes the operation speed of the car and decelerates so that the car can be temporarily stopped at a position before the approach confirmation position when the approach detection signal from the detection sensor is acquired. Elevator control system. The elevator control system according to claim 2,
Provided in the car, equipped with an output device that can output abnormality notifications,
The control device
An elevator control system comprising an abnormality notification processing unit that acquires an approach detection signal from a detection sensor and transmits an abnormality notification to an output device. In the elevator control system according to claim 3,
The control device
After transmitting the abnormality notification to the output device, the operation of the car is resumed, and then when the approach confirmation signal from the confirmation sensor is acquired, the car door side engaging part of the car is separated from the landing door side engaging part. An elevator control system comprising an emergency stop processing unit for stopping a car so that the car can be stopped at a position before being engaged.

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