JP2011057321A - Elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent degradation in services to passengers after suppressing wasteful power consumption such as the standby power in a non-contact guide device of a car as much as possible. <P>SOLUTION: When a hall call is detected while an operational mode of a non-contact guide device is in a guide control stop in which power is not supplied to the non-contact guide device, the car runs by an auxiliary guide device if an in-car passenger checking unit 30 determines that no passenger is present in the car. If the in-car passenger checking unit 30 determines that passengers are present in the car, the operational mode of the non-contact guide device is changed to the guide control, and the car runs by the guide control of the non-contact guide device. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an elevator that guides a car in a non-contact state with respect to a guide rail.

  2. Description of the Related Art Conventionally, an elevator is generally configured such that a car suspended from a rope moves up and down along a pair of guide rails installed vertically in a hoistway. A rotational moment acts on the car due to an imbalance of the load in the car, etc., but the car is supported by a guide device attached to the car by a guide rail.

  Conventionally, as a guide device for a car, a rotation support type roller guide, a sliding guide shoe that slides on a guide rail, and the like have been used. In these contact-type guide devices, vibration and noise caused by joints and deflection of the guide rail are transmitted to the car via the guide device, which is one of the factors that impair the riding comfort of the elevator.

  In recent years, in order to avoid such a problem, for example, as disclosed in Patent Document 1, there is a non-contact type guide device that guides a car in a non-contact manner with respect to a guide rail by magnetic force.

  This non-contact type guidance device is a device that consumes electric power. When the guidance control is hindered due to, for example, a power failure or device failure, guidance by the non-contact type guidance device cannot be performed. Even in this case, for example, Patent Document 2 discloses that an auxiliary guide device is provided to allow the car to be raised and lowered.

Japanese Patent Laid-Open No. 2001-19286 JP 2001-261261 A

  With the method disclosed in Patent Document 1 described above, the ride comfort of the elevator can be kept comfortable without being affected by the state of the guide rail by non-contact guidance, but it consumes more power than the conventional roller guide. There is a disadvantage of doing.

  For this reason, it is considered necessary to take measures such as shutting off the power supply in order to reduce power consumption when the elevator is stopped for a long period of time or when it is not in service, but a call is generated from the hall by the elevator user while the power supply is shut off. When performing guidance by the non-contact guide device, it takes a certain amount of time until the non-contact guide device is activated and guidance control is started. As a result, the arrival of the car is delayed and the service falls.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an elevator that can suppress unnecessary power consumption such as standby power in a non-contact guidance device for a car as much as possible and prevent the service to passengers from deteriorating. There is.

  That is, an elevator according to the present invention is mounted on a guide rail laid vertically in a hoistway, a car that moves up and down along the guide rail, and the car, Based on a magnet unit having a plurality of electromagnets having opposing magnetic poles, a sensor unit that detects the state of the magnetic circuit formed by the electromagnet and the gap and the guide rail, and the output of the sensor unit A guide control means for controlling the exciting current of the electromagnet to guide the car to the guide rail in a non-contact manner, and a control by the guide control means when it is no longer necessary to guide the car in a non-contact manner. A non-contact guide control stop means for stopping the control, and the control by the guide control means is stopped by the non-contact guide control stop means, When it is necessary to guide the car, the passenger discriminating means for discriminating whether or not the passenger in the car is on board and the passenger discriminating means discriminating that the passenger is in the car A non-contact guidance control starting means for starting the guidance of the car by the guidance control means, and the passenger judging means when the passenger judging means judges that no passenger is in the car. Auxiliary guide means for guiding while supporting the guide rail so as to be movable up and down.

  ADVANTAGE OF THE INVENTION According to this invention, while reducing useless power consumption, such as standby electric power, in the non-contact guidance apparatus of a car as much as possible, it can prevent the service to a passenger from deteriorating.

The figure which shows the structural example of the elevator in the 1st Embodiment of this invention. The figure which shows the structural example of the non-contact guide apparatus and auxiliary guide apparatus of the elevator in the 1st Embodiment of this invention. The figure which shows the positional relationship of the non-contact guide apparatus and guide rail of the elevator in the 1st Embodiment of this invention. The flowchart which shows an example of the processing operation in connection with the control stop of the non-contact guide apparatus of the elevator in the 1st Embodiment of this invention. The block diagram which shows the function structural example of the elevator control panel of the elevator in the 1st Embodiment of this invention, and the control apparatus for non-contact guidance apparatuses. The flowchart which shows an example of the processing operation in connection with the control start after the control stop of the non-contact guide apparatus of the elevator in the 1st Embodiment of this invention. The block diagram which shows the modification of the function structure of the elevator control panel of the elevator in the 1st Embodiment of this invention, and the control apparatus for non-contact guide apparatuses. The flowchart which shows the modification of the processing operation regarding the control start after the control stop of the non-contact guide apparatus of the elevator in the 1st Embodiment of this invention. The block diagram which shows the function structural example of the elevator control panel of the elevator in the 2nd Embodiment of this invention, and the control apparatus for non-contact guide apparatuses. The flowchart which shows an example of the processing operation regarding the control start after the control stop of the elevator non-contact guide apparatus in the 2nd Embodiment of this invention. The block diagram which shows the function structural example of the elevator control panel of the elevator in the 3rd Embodiment of this invention, and the control apparatus for non-contact guide apparatuses. The flowchart which shows an example of the processing operation regarding the control start after the control stop of the non-contact guide apparatus of the elevator in the 3rd Embodiment of this invention. The block diagram which shows the function structural example of the elevator control panel of the elevator in the 4th Embodiment of this invention, and the control apparatus for non-contact guidance apparatuses. The flowchart which shows an example of the processing operation in connection with the control start after the control stop of the non-contact guide apparatus of the elevator in the 4th Embodiment of this invention.

Embodiments of the present invention will be described below with reference to the drawings.
(First embodiment)
First, a first embodiment of the present invention will be described.
FIG. 1 is a diagram illustrating a configuration example of an elevator according to the first embodiment of the present invention.
The elevator includes a hoist 1, a car 2, a main rope 3, a lifting weight 4, a pulse generator 5, a deflecting sheave 6, an elevator control panel 7, a guide rail 8, a tail cord 9, a hoistway 10, and a non-contact guide device. 11, a non-contact guide device control device 12, an auxiliary guide device 13, and a load sensor 17.

  A hoisting machine 1 is provided in the machine room of the elevator. The car 2 is connected to a suspension weight 4 through a main rope 3 wound around a sheave provided on the rotating shaft of the hoisting machine 1 and a baffle sheave 6. As the sheave is driven by the hoisting machine 1, the car 2 moves up and down in the hoistway 10 together with the suspension weight 4 by the frictional force between the sheave and the main rope 3.

  The machine room is provided with an elevator control panel 7 for controlling the operation of the car 2. A load sensor 17 is installed below the car 2 and connected to the elevator control panel 7 via the tail cord 9. The load sensor 17 includes a differential transformer, a gap sensor, and the like, and outputs a voltage signal for calculating a load signal to the elevator control panel 7 via the tail cord 9.

The pulse generator 5 is installed on the rotation shaft of the hoisting machine 1, detects the shaft rotation of the hoisting machine 1, and generates a number of pulse signals proportional to the rotation angle.
The elevator control panel 7 considers that the car 2 has arrived at the landing position on the destination floor when the accumulated count number of pulse signals matches the predetermined number of pulses corresponding to the destination floor. The car 2 is stopped by controlling the drive.

  The guide rail 8 is laid in the hoistway 10 in the vertical direction. Further, non-contact guide devices 11 are attached to four places on the upper, lower, left and right sides of the car 2. The car 2 is suspended by a main rope 3 and guided to a pair of T-shaped guide rails 8 vertically installed in the hoistway 10 via a non-contact guide device 11. 10 is moved up and down.

FIG. 2 is a diagram illustrating a configuration example of the elevator non-contact guide device and the auxiliary guide device according to the first embodiment of the present invention.
As shown in FIG. 2, the non-contact guide device 11 attached to the car 2 includes a gap sensor 14, a permanent magnet 15, and an electromagnet 16. The non-contact guide device controller 12 controls the guide rail 8. On the other hand, the attracting force of the permanent magnet 15 and the electromagnet 16 is applied to guide the car 2 in a non-contact manner.

  The gap sensor 14 is an eddy current type displacement sensor and the detection principle is not particularly limited, but detects the distance between the gap sensor 14 of the non-contact guide device 11 and the guide rail 8.

  Based on the detection result of the gap sensor 14, the non-contact guide device 11 calculates a voltage required for stable guidance of the car 2 by the non-contact guide device control device 12, and calculates the calculated voltage. By applying to the electromagnet 16 and controlling the exciting current of the electromagnet 16, stable guidance of the car 2 is obtained.

FIG. 3 is a diagram showing a positional relationship between the non-contact guide device for the elevator and the guide rail in the first embodiment of the present invention.
As shown in FIG. 3, the non-contact guide device 11 includes gap sensors 14a and 14b, and permanent magnets 15a and 15b and electromagnets 16a, 16b and 16c are assembled in an E shape.
Further, the guide rail 8 has a parallel portion parallel to the longitudinal direction of the wall surface of the hoistway 10 and a protrusion extending vertically from the center of the parallel portion toward the inside of the hoistway 10.

The electromagnet 16a has a protrusion portion whose longitudinal direction is parallel to the longitudinal direction of the wall surface of the hoistway 10 and that faces the wall surface of the hoistway 10 at a central portion.
The permanent magnet 15a is attached so that one end is attached to one end of the electromagnet 16a, the other end faces the wall surface of the hoistway 10, and the longitudinal direction is perpendicular to the longitudinal direction of the electromagnet 16a.
The permanent magnet 15b is attached so that one end thereof is attached to the other end of the electromagnet 16a, the other end faces the wall surface of the hoistway 10, and the longitudinal direction is parallel to the longitudinal direction of the permanent magnet 15a.

One end of the electromagnet 16 b is attached to the other end of the permanent magnet 15 a, the longitudinal direction is perpendicular to the longitudinal direction of the permanent magnet 15 a, the other end is parallel to the longitudinal direction of the electromagnet 16 a, and the other end is the guide rail 8. It is attached to face the protrusion.
One end of the electromagnet 16c is attached to the other end of the permanent magnet 15b, the longitudinal direction is perpendicular to the longitudinal direction of the permanent magnet 15b, parallel to the longitudinal direction of the electromagnet 16a, and the other end of the electrorail 16c. It is attached to face the protrusion.

  These electromagnets 16a, 16b and 16c are obtained by winding a coil around an iron core. A gap sensor 14a for detecting a gap in the X direction between the electromagnet 16a and the projection of the guide rail 8, that is, a direction perpendicular to the direction of the wall surface of the hoistway 10, is attached to the tip of the projection of the electromagnet 16a. It is done. The gap sensor 14a is close to the tip of the protrusion of the guide rail 8.

  A gap sensor 14b for detecting a gap in the Z direction between the electromagnet 16b and the protrusion of the guide rail 8, that is, a direction parallel to the direction of the wall surface of the hoistway 10, is attached to the other end of the electromagnet 16b. It is done. This gap sensor 14 b is close to the protrusion of the guide rail 8.

  Here, the control device 12 for the non-contact guide device converges the currents of the coils of the electromagnets 16a, 16b, and 16c to zero so that the car can be obtained only by the attractive force of the permanent magnet 15 regardless of the weight of the car 2. So-called zero power control for stably supporting 2 is performed.

Further, as shown in FIGS. 1 and 2, an auxiliary guide device 13 is attached to a portion connected to the lower end portion of the non-contact guide device 11.
The auxiliary guide device 13 has a roller guide. During operation of the auxiliary guide device 13, the roller guide rotates while contacting the guide rail 8 when the car 2 is traveling. As a result, the car 2 is guided while being supported by the guide rail 8. The roller guide of the auxiliary guide device 13 may be a sliding shoe, for example.

  The operation mode of the non-contact guidance apparatus 11 is switched during guidance control or when guidance control is stopped. When the operation mode of the non-contact guide device 11 is during guidance control, the auxiliary guide device 13 is not in contact with the guide rail 8. In addition, when the operation mode of the non-contact guide device 11 is stopping the guidance control, the car 2 travels with guidance by the auxiliary guide device 13 as described above.

  In the present embodiment, the vibration caused by the traveling of the car 2 by the auxiliary guide device 13 is larger than the vibration caused by the traveling of the car 2 by the non-contact guide device 11, but the vibration of the car 2 by the auxiliary guide device 13 is increased. It is assumed that there will be no wear or damage due to running.

FIG. 4 is a flowchart illustrating an example of a processing operation related to control stop of the elevator non-contact guide device according to the first embodiment of the present invention. The process shown in FIG. 4 is an example of a control stop condition and is not particularly limited.
When the guidance control by the non-contact guidance device 11 is being performed, that is, when the operation mode is the guidance control, the control device for the non-contact guidance device regardless of whether the car 2 is actually guiding or waiting for guidance. Power is supplied from 12 to the non-contact guide device 11. That is, if the guidance control by the non-contact guidance device 11 is continued when there is no elevator operation for a long time, standby power is consumed greatly. Therefore, in this embodiment, when there is no operation for a long time, the operation mode of the non-contact guidance apparatus 11 is switched to the guidance control stop, and the power supply to the non-contact guidance apparatus control device 12 is cut off.

  The non-contact guide device control device 12 always determines whether or not the operation mode of the non-contact guide device 11 is the guidance control stop (step S1), and the operation mode is the guidance control stop (step S1). In S1 (YES), the power supply to the non-contact guide device 11 is cut off, and the guide control by the non-contact guide device 11 is stopped (step S5).

  Further, the control device 12 for the non-contact guide device does not operate when the operation mode of the non-contact guide device 11 is in the guidance control (NO in step S1) and the car 2 is traveling (NO in step S2). The guidance control by the contact guidance device 11 is continued (step S6).

  Further, the non-contact guide device control device 12 is configured such that when the operation mode of the non-contact guide device 11 is guidance control (NO in step S1), the car 2 is stopped (YES in step S2). When the operation of the car 2 is suspended (YES in step S3), the operation mode of the non-contact guide device 11 is switched to the guidance control stop, and then the power supply to the non-contact guide device 11 is cut off and non-operation is performed. The guidance control by the contact guidance device 11 is stopped (step S5).

  Further, the non-contact guide device control device 12 is configured such that when the operation mode of the non-contact guide device 11 is guidance control (NO in step S1), the car 2 is stopped (YES in step S2). Even when the car 2 is not in operation suspension (NO in step S3), when a predetermined time, for example, 30 minutes or more has elapsed after waiting for the door to close (YES in step S4), the operation mode of the non-contact guide device 11 is guided. After switching to the control stop, the power supply to the non-contact guide device 11 is interrupted to stop the guide control by the non-contact guide device 11 (step S5).

  Although the power consumption of the non-contact guide device 11 can be reduced by such processing, when a hall call is made by an elevator user while the guidance control by the non-contact guide device 11 is stopped, the non-contact guide device 11 The car 2 cannot travel until the control device 12 switches the operation mode of the non-contact guide device 11 during the guide control, activates the non-contact guide device 11 and starts the guide control. If the start of the guidance control is delayed in this way, the arrival of the car 2 at the floor where the hall call is made is delayed, leading to a service degradation.

  Therefore, in the present embodiment, a function for determining the presence or absence of passengers in the car 2 is provided, and as described above, the hall call is made while the control of the non-contact guide device 11 for reducing power consumption by the non-contact guide device 11 is stopped. When it is necessary to travel the car 2 by the above method, and there is no passenger in the car 2, the car 2 is traveled by the guidance of the auxiliary guide device 13 described above.

  When the car 2 is driven by the guide by the auxiliary guide device 13, the riding comfort and the like are reduced as compared to the guide by the non-contact guide device 11, but in this embodiment, the ride is performed during the travel by the guide by the auxiliary guide device 13. Since no passengers are carried in the car 2, there is no problem of ride comfort.

FIG. 5 is a block diagram illustrating a functional configuration example of the elevator control panel and the non-contact guide device control device according to the first embodiment of the present invention.
As shown in FIG. 5, the elevator control panel 7 includes a hall call detection unit 27, a switch 28 a, a travel permission command unit 29, an in-car passenger confirmation unit 30, and a non-contact guidance control start command unit 31.
As shown in FIG. 5, the non-contact guide control device 12 includes a non-contact guidance control state output unit 28, a non-contact guidance control start unit 32, and a non-contact guidance control stop unit 33.

  The elevator control panel 7 has a switch 28a. The switch 28a is a switch that connects between the hall call detection unit 27 and the travel permission command unit 29, or between the hall call detection unit 27 and the passenger confirmation unit 30 in the car. It is switched by the non-contact guidance control state output unit 28 of the guidance device controller 12.

  The passenger confirmation unit 30 in the car of the elevator control panel 7 confirms whether there are passengers in the car 2 based on the detection result by the load sensor 17. The passenger confirmation unit 30 in the car may confirm whether or not there are passengers in the car 2 based on a photographed image of a car camera not shown.

The non-contact guidance control start command unit 31 commands the non-contact guidance control start unit 32 of the non-contact guidance device control device 12 to start guidance control by the non-contact guidance device 11 as necessary.
The non-contact guidance control start unit 32 switches the operation mode of the non-contact guidance device 11 during the guidance control in accordance with a command from the non-contact guidance control start command unit 31, and notifies the non-contact guidance control state output unit 28 of this fact. To do. Moreover, the non-contact guidance control stop part 33 switches the operation mode of the non-contact guidance apparatus 11 to guidance control stop as needed, and notifies this to the non-contact guidance control state output part 28.

  The non-contact guidance control state output unit 28 connects the switching state of the switch 28 a of the elevator control panel 7 between the hall call detection unit 27 and the travel permission command unit 29 in accordance with the notification from the non-contact guidance control start unit 32. Switch to be. Further, the non-contact guidance control state output unit 28 sets the switching state of the switch 28 a of the elevator control panel 7 between the hall call detection unit 27 and the passenger confirmation unit 30 in the car according to the notification from the non-contact guidance control stop unit 33. Switch to be connected in between.

FIG. 6 is a flowchart showing an example of a processing operation related to the control start after the control stop of the elevator non-contact guide apparatus in the first embodiment of the present invention.
When the hall call detection unit 27 of the elevator control panel detects the hall call while the car 2 is stopped (YES in step S11) (step S12), the non-contact guide device 11 is confirmed by checking the switching state of the switch 28a. It is determined whether or not the operation mode is guidance control, that is, whether or not electric power is supplied to the non-contact guidance apparatus 11 (step S13).

  If the operation mode of the non-contact guide device 11 is guidance control, that is, the hall call detection unit 27 is connected between the hall call detection unit 27 and the travel permission command unit 29 (NO in step S13). This is notified to the travel permission command unit 29. The travel permission command unit 29 outputs a travel permission command upon receiving this notification (step S14).

  As a result, the car 2 can travel, and travels in a state where the guidance control of the non-contact guide device 11 is continued (step S15) (step S20). Here, if the floor on which the hall call is located is the floor where the car 2 is waiting, the elevator control panel 7 is not opened and the floor is opened without moving the car 2. It is moved to the floor where the call was made by the guidance of the non-contact guidance device 11 and opened.

  On the other hand, if the operation mode of the non-contact guide device 11 is the guidance control stop, that is, the hall call detection unit 27 is connected between the hall call detection unit 27 and the passenger confirmation unit 30 in the car ( This is notified to the passenger confirmation unit 30 in the car. Upon receiving this notification, the passenger confirmation unit 30 in the car determines whether or not there are passengers in the car 2 (step S16).

  If the passenger confirmation unit 30 in the car determines that the inside of the car 2 is “no passengers” (NO in step S16), the passenger confirmation unit 30 notifies this to the travel permission command unit 29. When the travel permission command unit 29 receives a notification from the passenger confirmation unit 30 in the car, the travel permission command unit 29 outputs a travel permission command (step S17). In this state, since the operation mode of the non-contact guide device 11 remains during the guidance control stop, the elevator control panel 7 activates the auxiliary guide device 13 (step S18). The car 2 travels with guidance by the auxiliary guide device 13 (step S20).

  In addition, if the passenger in the car 2 is “with passengers” (YES in step S16), the passenger confirmation unit 30 in the car notifies the non-contact guidance control start command unit 31 of this fact. The non-contact guidance control start command unit 31 outputs a non-contact guidance control start command to the non-contact guidance control start unit 32 of the control device 12 for non-contact guidance device when receiving a notification from the passenger confirmation unit 30 in the car.

  When the non-contact guidance control start unit 32 receives a command from the non-contact guidance control start command unit 31, the non-contact guidance control start unit 32 switches the operation mode of the non-contact guidance device 11 during guidance control (step S19). The status output unit 28 is notified.

When the non-contact guidance control state output unit 28 receives the notification from the non-contact guidance control start unit 32, the non-contact guidance control state output unit 28 sets the switching state of the switch 28 a of the elevator control panel 7 between the hall call detection unit 27 and the travel permission command unit 29. Switch to connect.
Then, the travel permission command unit 29 outputs a travel permission command. As a result, the car 2 can travel, and the car 2 travels by the guidance control of the non-contact guide device 11 (step S20).

  As described above, in the elevator according to the first embodiment of the present invention, the operation mode of the non-contact guide device 11 is guided and controlled when a predetermined period of time elapses while the operation of the car 2 is suspended or the door is closed. When the hall call is made in this state when there is no passenger in the car 2, the car 2 is driven by the guidance of the auxiliary guide device 13. When there are passengers in the car 2, the operation mode of the non-contact guidance device 11 is switched during guidance control, and the car 2 is caused to travel by guidance from the non-contact guidance device 11.

  Thereby, even if the guidance control by the non-contact guidance device 11 is stopped when the operation is stopped for a long time or when the operation is stopped to reduce power consumption, the arrival of the car 2 to the user due to the stop is delayed. Can be prevented. That is, the power consumption by the non-contact guide device 11 can be suppressed as much as possible without causing a decrease in service to passengers.

  Next, a modification of the first embodiment of the present invention will be described. In this modification, the elevator control panel 7 determines the presence or absence of a passenger based on whether or not the car 2 is opened. As described above, the guide control stop condition by the non-contact guide device 11 is a case where a certain period of time has passed since the operation was stopped or the door was closed, so this state is inevitably a state in which there are no passengers in the car 2. Can be considered. Therefore, it is possible to determine that the opening of the car 2 from this state is a passenger entering the car 2.

FIG. 7 is a block diagram showing a modification of the functional configuration of the elevator control panel and the non-contact guide control device according to the first embodiment of the present invention.
As shown in FIG. 7, in this modification, the elevator control panel 7 includes a door opening detection unit 41 of the passenger car 2 in place of the passenger confirmation unit 30 in the car as compared with the configuration shown in FIG. 5. In this modification, the switch 28 a is a switch that connects between the hall call detection unit 27 and the travel permission command unit 29 or between the hall call detection unit 27 and the door opening detection unit 41. That is, in this modification, the non-contact guidance control state output unit 28 detects the switching state of the switch 28a of the elevator control panel 7 according to the notification from the non-contact guidance control stop unit 33 and the door call detection unit 27 and the door open detection. It switches so that it may be connected between the parts 41.

FIG. 8 is a flowchart showing a modification of the processing operation related to the control start after the control stop of the elevator non-contact guide apparatus in the first embodiment of the present invention.
If “YES” is determined in the process of step S13 described above, that is, if the operation mode of the non-contact guidance apparatus 11 is in the guidance control stop state, the door open detection unit 41 determines whether the car 2 is open or not. Judging. (Step S21).

  If the inside of the car 2 is not opened (NO in step S21), the door opening detection unit 41 notifies the travel permission command unit 29 to that effect. When the travel permission command unit 29 receives the notification from the door open detection unit 41, the travel permission command unit 29 outputs a travel permission command (step S17). In this state, since the operation mode of the non-contact guide device 11 remains during the guidance control stop, the elevator control panel 7 activates the auxiliary guide device 13 (step S18). The car 2 starts to travel with the guidance of the auxiliary guide device 13 and returns to the process of step S21.

  Moreover, if the inside of the car 2 is opened (YES in Step S21), the door opening detection unit 41 notifies the non-contact guidance control start command unit 31 of this fact. When the non-contact guidance control start command unit 31 receives the notification from the door opening detection unit 41, the non-contact guidance control start command unit 31 considers that the passenger has entered the car 2, and issues a non-contact guidance control start command to the control device 12 for the non-contact guidance device. Is output to the non-contact guidance control start unit 32.

  When the non-contact guidance control start unit 32 receives a command from the non-contact guidance control start command unit 31, the non-contact guidance control start unit 32 switches the operation mode of the non-contact guidance device 11 during guidance control (step S19). The status output unit 28 is notified.

When the non-contact guidance control state output unit 28 receives the notification from the non-contact guidance control start unit 32, the non-contact guidance control state output unit 28 sets the switching state of the switch 28 a of the elevator control panel 7 between the hall call detection unit 27 and the travel permission command unit 29. Switch to connect.
Then, the travel permission command unit 29 outputs a travel permission command. As a result, the car 2 can travel, and the car 2 travels by the guidance control of the non-contact guide device 11 (step S20).

  That is, in this modified example, the presence or absence of a passenger is determined based on whether or not the car 2 is opened, and when it is determined that the passenger is in the car 2, the car 2 is guided by the non-contact guidance device 11. Since it makes it drive | work, when a passenger is in the car 2, it can prevent making the car 2 drive by the guidance of the auxiliary guide device 13.

(Second Embodiment)
Next, a second embodiment of the present invention will be described. In addition, description of the same part as what was shown in FIG. 1 among the structures of the elevator in each following embodiment is abbreviate | omitted. In this embodiment, the presence / absence of passengers in the car 2 is determined with higher accuracy by determining the presence / absence of passengers in the car 2 based on the load value detected by the load sensor 17 and the amount of change thereof. It is characterized by judging.

FIG. 9 is a block diagram illustrating a functional configuration example of an elevator control panel and a non-contact guide control device according to the second embodiment of the present invention.
As shown in FIG. 9, the elevator control panel 7 according to the second embodiment of the present invention has a load signal detection unit 51, a load determination unit 52, and a load change amount determination unit 53, as compared with the configuration shown in FIG. It has further.

  The load signal detector 51 detects the load signal of the car 2 based on the signal from the load sensor 17. The load determination unit 52 determines whether or not the load value indicated by the load signal detected by the load signal detection unit 51 exceeds a predetermined value. The load change amount determination unit 53 determines whether or not the above-described change amount of the load value within a predetermined time exceeds a predetermined value.

FIG. 10: is a flowchart which shows an example of the processing operation regarding the control start after the control stop of the non-contact guide apparatus of the elevator in the 2nd Embodiment of this invention.
In the present embodiment, if “YES” is determined in the process of step S13 described above, that is, if the operation mode of the non-contact guide apparatus 11 is stopped during the guidance control, the door opening detection unit 41 of the elevator control panel 7 is Then, it is determined whether or not the car 2 is opened. (Step S21).

  If the inside of the car 2 is not opened (NO in step S21), the door opening detection unit 41 notifies the travel permission command unit 29 to that effect. When the travel permission command unit 29 receives the notification from the door open detection unit 41, the travel permission command unit 29 outputs a travel permission command (step S17). In this state, since the operation mode of the non-contact guide device 11 remains during the guidance control stop, the elevator control panel 7 activates the auxiliary guide device 13 (step S18). The car 2 travels with guidance by the auxiliary guide device 13 and returns to the process of step S21.

  Moreover, if the inside of the car 2 is opened (YES in Step S21), the door opening detection unit 41 notifies the load signal detection unit 51 of this fact. When receiving the notification from the door opening detection unit 41, the load signal detection unit 51 detects the load signal of the car 2 based on the signal from the load sensor 17. And the load determination part 52 determines whether the load value obtained by the load signal detection part 51 exceeds the predetermined value W (YES of step S31). Here, the predetermined value W is 20 [kg].

  When the load determination unit 52 determines that the load value exceeds the predetermined value W (YES in step S31), the load change amount determination unit 53 determines that the load value obtained by the load signal detection unit 51 is within a predetermined time. It is determined whether or not the amount of change exceeds a predetermined value dW (step S32). Here, the predetermined value dW is an amount that varies when a person with a weight of 20 kg gets into the car 2.

  If the load change amount determination unit 53 determines that the change amount of the load value within the predetermined time exceeds the predetermined value dW (YES in step S32), the load change amount determination unit 53 notifies the non-contact guidance control start command unit 31 of this fact. . When the non-contact guidance control start command unit 31 receives the notification from the load change amount determination unit 53, the non-contact guidance control start command unit 31 regards that the passenger has entered the car 2, and issues a non-contact guidance control start command to the non-contact guidance device control device. 12 to the non-contact guidance control start unit 32.

  When the non-contact guidance control start unit 32 receives a command from the non-contact guidance control start command unit 31, the non-contact guidance control start unit 32 switches the operation mode of the non-contact guidance device 11 during guidance control (step S19). The status output unit 28 is notified.

  When the non-contact guidance control state output unit 28 receives the notification from the non-contact guidance control start unit 32, the non-contact guidance control state output unit 28 sets the switching state of the switch 28 a of the elevator control panel 7 between the hall call detection unit 27 and the travel permission command unit 29. Switch to connect.

  Then, the travel permission command unit 29 outputs a travel permission command. As a result, the car 2 can travel, and the car 2 travels by the guidance control of the non-contact guide device 11 (step S20).

  If the load determination unit 52 determines that the load value does not exceed the predetermined value W (NO in step S31), the process returns to step S31 if the predetermined time has not elapsed. Further, when this predetermined time has elapsed (YES in step S33), the elevator control panel 7 closes the door and outputs a travel permission command by the travel permission command unit 29 (step S34). In this state, since the operation mode of the non-contact guide device 11 remains during the guidance control stop, the elevator control panel 7 activates the auxiliary guide device 13 (step S35). The car 2 starts traveling with the guidance of the auxiliary guide device 13 (step S20).

  Further, when the load change amount determination unit 53 determines that the change amount of the load value within the predetermined time does not exceed the predetermined value dW (NO in step S32), if the predetermined time has not elapsed, the load change amount determination unit 53 performs the process of step S32. Return to processing. Further, when the predetermined time has elapsed (YES in step S36), the elevator control panel 7 closes the door and outputs a travel permission command by the travel permission command unit 29 (step S34). Thereafter, the processing after step S35 is performed.

  As described above, in the elevator according to the second embodiment of the present invention, the operation mode of the non-contact guide device 11 is guided and controlled when a predetermined period of time elapses while the operation of the car 2 is stopped or the door is closed. When switching to the stop and power supply to the non-contact guide device 11 is cut off and a hall call is made in this state, if the load value or load change amount of the car 2 does not exceed a predetermined value, Assuming that there are no passengers in the car 2, the car 2 is caused to travel by guidance from the auxiliary guide device 13. If the load value and the load change amount of the car 2 exceed the predetermined values, it is assumed that there are passengers in the car 2, and the operation mode of the non-contact guide device 11 is switched during the guidance control. The car 2 is caused to travel by guidance from the contact guide device 11.

  Thus, when the hall call is made and the door is opened, it can be determined that the passenger has not actually entered the car 2 after the door is opened. In this case, the car 2 is guided by the auxiliary guide device 13. Therefore, compared with the first embodiment, the electric power required for the guidance control can be reduced more.

(Third embodiment)
Next, a third embodiment of the present invention will be described. The present embodiment is characterized in that the presence / absence of a passenger in the car 2 is more reliably determined by determining the presence / absence of a passenger in the car 2 using the output signal of the gap sensor 14.

FIG. 11: is a block diagram which shows the function structural example of the elevator control panel of the elevator in the 3rd Embodiment of this invention, and the control apparatus for non-contact guide apparatuses.
As shown in FIG. 11, the elevator control panel 7 according to the third embodiment of the present invention includes a gap sensor output amount detection unit 61 and a gap sensor output change amount determination unit 62 as compared with the configuration shown in FIG. Also have.

The gap sensor output amount detection unit 61 detects the gap sensor output amount based on the signal from the gap sensor 14 of the non-contact guide device 11.
The gap sensor output change amount determination unit 62 determines whether or not the change amount of the gap sensor output amount detected by the gap sensor output amount detection unit 61 within a predetermined time exceeds a predetermined value.

FIG. 12: is a flowchart which shows an example of the processing operation regarding the control start after the control stop of the non-contact guide apparatus of the elevator in the 3rd Embodiment of this invention.
In the present embodiment, if “YES” is determined in the process of step S13 described above, that is, if the operation mode of the non-contact guide apparatus 11 is stopped during the guidance control, the door opening detection unit 41 of the elevator control panel 7 is Then, it is determined whether or not the car 2 is opened. (Step S21).

  If the inside of the car 2 is not opened (NO in step S21), the door opening detection unit 41 notifies the travel permission command unit 29 to that effect. When the travel permission command unit 29 receives the notification from the door open detection unit 41, the travel permission command unit 29 outputs a travel permission command (step S17). In this state, since the operation mode of the non-contact guide device 11 remains during the guidance control stop, the elevator control panel 7 activates the auxiliary guide device 13 (step S18). The car 2 travels with guidance by the auxiliary guide device 13 and returns to the process of step S21.

  Moreover, if the inside of the car 2 is opened (YES in Step S21), the door opening detection unit 41 notifies the gap sensor output amount detection unit 61 of this fact. When receiving the notification from the door opening detection unit 41, the gap sensor output amount detection unit 61 detects the gap sensor output amount based on the signal from the gap sensor. Then, the gap sensor output change amount determination unit 62 determines whether or not the change amount of the gap sensor output amount detected by the gap sensor output amount detection unit 61 within a predetermined time exceeds a predetermined value dG (step S41). Here, the predetermined value dG is an amount that varies when a person with a weight of 20 kg enters the car 2.

  When the gap sensor output change amount determination unit 62 determines that the change amount of the gap sensor output amount within a predetermined time exceeds the predetermined value dG (YES in step S41), this is indicated by a non-contact guidance control start command unit. 31 is notified. When the non-contact guidance control start command unit 31 receives the notification from the gap sensor output change amount determination unit 62, the non-contact guidance control start command unit 31 regards that the passenger has entered the car 2, and issues a non-contact guidance control start command for the non-contact guidance device. It outputs to the non-contact guidance control start part 32 of the control apparatus 12.

  When the non-contact guidance control start unit 32 receives a command from the non-contact guidance control start command unit 31, the non-contact guidance control start unit 32 switches the operation mode of the non-contact guidance device 11 during guidance control (step S19). The status output unit 28 is notified.

  When the non-contact guidance control state output unit 28 receives the notification from the non-contact guidance control start unit 32, the non-contact guidance control state output unit 28 sets the switching state of the switch 28 a of the elevator control panel 7 between the hall call detection unit 27 and the travel permission command unit 29. Switch to connect.

  Then, the travel permission command unit 29 outputs a travel permission command. As a result, the car 2 can travel, and the car 2 travels by the guidance control of the non-contact guide device 11 (step S20).

  If the gap sensor output change amount determination unit 62 determines that the change amount of the gap sensor output amount within the predetermined time does not exceed the predetermined value dG (NO in step S41), it may be before the predetermined time has elapsed. Then, the process returns to step S41. Further, when the predetermined time has elapsed (YES in step S42), the elevator control panel 7 closes the door and outputs a travel permission command by the travel permission command unit 29 (step S43). In this state, since the operation mode of the non-contact guide device 11 remains during the guidance control stop, the elevator control panel 7 activates the auxiliary guide device 13 (step S44). The car 2 starts traveling with the guidance of the auxiliary guide device 13 (step S20).

  As described above, in the elevator according to the third embodiment of the present invention, the operation control mode of the non-contact guide device 11 is stopped when the operation time of the car 2 is stopped or when a predetermined time has elapsed since the door is closed. When the hall call is made in this state when the power supply to the non-contact guide device 11 is cut off, and the change amount of the gap sensor output amount does not exceed the predetermined value, Assuming that there are no passengers, the car 2 is caused to travel by guidance from the auxiliary guide device 13. Further, when the change amount of the gap sensor output amount exceeds a predetermined value, it is assumed that there are passengers in the car 2, and the operation mode of the non-contact guide device 11 is switched during the guidance control, thereby the non-contact guide device. The car 2 is made to travel from the guidance by No.11.

  Thus, when the hall call is made and the door is opened, it can be determined that the passenger has not actually entered the car 2, and in this case, the car 2 is driven by the guidance of the auxiliary guide device 13. Compared with the first embodiment, the power required for the guidance control can be reduced more.

(Fourth embodiment)
Next, a fourth embodiment of the present invention will be described. As for the operation function of the elevator, the car 2 is driven by a diagnostic operation start command from a remote monitoring center or the like outside the elevator, and data on various control amounts of the elevator is collected to check whether there is any abnormality. There is a diagnostic driving function for.

  If the elevator running by the diagnostic operation function is based on the guidance of the auxiliary guide device 13, there is a risk that an abnormality is erroneously detected due to vibration or the like due to a reduction in guiding force. In the present embodiment, in order to prevent such erroneous detection, guidance control by the non-contact guidance device 11 is performed regardless of the presence or absence of passengers in the car 2 when performing diagnostic operation of the elevator. It is characterized by that.

FIG. 13: is a block diagram which shows the function structural example of the elevator control panel of the elevator in the 4th Embodiment of this invention, and the control apparatus for non-contact guide apparatuses.
As shown in FIG. 13, the elevator control panel 7 according to the fourth embodiment of the present invention has an operating state determination unit 71 as compared with the configuration shown in FIG. 11.

  In the present embodiment, the switch 28 a is a switch that connects between the hall call detection unit 27 and the travel permission command unit 29 or between the hall call detection unit 27 and the driving state determination unit 71. That is, in this embodiment, the non-contact guidance control state output unit 28 determines the switching state of the switch 28a of the elevator control panel 7 from the hall call detection unit 27 and the operation state determination according to the notification from the non-contact guidance control stop unit 33. It switches so that it may be connected between the parts 71.

  The operation state determination unit 71 determines whether the operation mode of the elevator is in a normal operation mode or a diagnostic operation mode in which the vehicle travels according to call registration.

FIG. 14: is a flowchart which shows an example of the processing operation regarding the control start after the control stop of the non-contact guide apparatus of the elevator in the 4th Embodiment of this invention.
In the present embodiment, if “YES” is determined in the process of step S13 described in the third embodiment, that is, if the operation mode of the non-contact guide device 11 is in the guidance control stop, the driving state determination unit 71. Determines whether or not the operation mode of the elevator is the diagnostic operation mode (step S51).

  When it is determined that the elevator operation mode is the diagnostic operation mode (YES in step S51), the driving state determination unit 71 notifies the non-contact guidance control start command unit 31 to that effect.

  The non-contact guidance control start command unit 31 outputs a non-contact guidance control start command to the non-contact guidance control start unit 32 of the non-contact guidance device control device 12 when receiving a notification from the driving state determination unit 71. When the non-contact guidance control start unit 32 receives a command from the non-contact guidance control start command unit 31, the non-contact guidance control start unit 32 switches the operation mode of the non-contact guidance device 11 during guidance control (step S19). The status output unit 28 is notified.

  When the non-contact guidance control state output unit 28 receives the notification from the non-contact guidance control start unit 32, the non-contact guidance control state output unit 28 sets the switching state of the switch 28 a of the elevator control panel 7 between the hall call detection unit 27 and the travel permission command unit 29. Switch to connect.

  Then, the travel permission command unit 29 outputs a travel permission command. As a result, the car 2 can travel, and the car 2 travels by the guidance control of the non-contact guide device 11 (step S20).

  On the other hand, when it is determined that the elevator operation mode is the normal operation mode (NO in step S51), the operation state determination unit 71 notifies the door opening detection unit 41 to that effect. Thereafter, the processing after step S21 described in the third embodiment is performed.

  As described above, in the elevator according to the fourth embodiment of the present invention, in addition to the features described in the third embodiment, the operation mode is the diagnosis operation mode while the guidance by the non-contact guidance device 11 is stopped. In this case, the guidance of the car 2 by the non-contact guidance device 11 is unconditionally started without determining whether or not there are passengers in the car 2. Thereby, guidance control by the non-contact guide device 11 can always be performed in the diagnostic operation mode, and erroneous detection of abnormality in the diagnostic operation mode due to traveling by the auxiliary guide device 13 can be prevented.

  The present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. Various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the embodiment. For example, some components may be omitted from all the components shown in the embodiment. Furthermore, you may combine suitably the component covering different embodiment.

  DESCRIPTION OF SYMBOLS 1 ... Hoisting machine, 2 ... Car, 3 ... Main rope, 4 ... Suspension weight, 5 ... Pulse generator, 6 ... Deflection sheave, 7 ... Elevator control panel, 8 ... Guide rail, 9 ... Tail cord, 10 ... Hoistway, 11 ... non-contact guide device, 12 ... control device for non-contact guide device, 13 ... auxiliary guide device, 14 ... gap sensor, 15 ... permanent magnet, 16 ... electromagnet, 17 ... load sensor, 27 ... hall call detection 28: Non-contact guidance control state output unit, 28a ... Switch, 29 ... Travel permission command unit, 30 ... Passenger confirmation unit in car, 31 ... Non-contact guidance control start command unit, 32 ... Non-contact guidance control start unit, 33 ... Non-contact guidance control stop unit, 51 ... Load signal detection unit, 52 ... Load determination unit, 53 ... Load change amount determination unit, 61 ... Gap sensor output detection unit, 62 ... Gap sensor output change determination unit, 7 ... operation state judgment unit.

Claims (5)

Guide rails laid vertically in the hoistway;
A car that goes up and down along the guide rail,
A magnet unit having a plurality of electromagnets mounted on the car and having magnetic poles facing the guide rails through a gap;
A sensor unit for detecting a state in the gap of the magnetic circuit formed by the electromagnet and the gap and the guide rail;
Guidance control means for controlling the exciting current of the electromagnet based on the output of the sensor unit and guiding the car in a non-contact manner with respect to the guide rail;
Non-contact guidance control stop means for stopping control by the guidance control means when it is no longer necessary to guide the car without contact;
Passenger discriminating means for discriminating whether or not a passenger is in the car when it is necessary to guide the car in a state where the control by the guidance control means is stopped by the non-contact guidance control stopping means; ,
Non-contact guidance control start means for starting guidance of the car by the guidance control means when the passenger discrimination means determines that a passenger is in the car;
When the passenger discriminating means discriminates that no passenger is in the car, auxiliary guidance means is provided for guiding the car while supporting the car so that it can be raised and lowered with respect to the guide rail. Elevator featured. The passenger discrimination means
In the state where the control by the guidance control means is stopped by the non-contact guidance control stop means, when it becomes necessary to guide the car, a passenger gets on the car when the car opens. The elevator according to claim 1, wherein it is determined that the elevator is present. A load detecting means for detecting a load value and a load change amount in the car;
The passenger discrimination means
Detected by the load detecting means when the car opens after the necessity to guide the car in a state where the control by the guidance control means is stopped by the non-contact guidance control stopping means. The elevator according to claim 1, wherein when the load value and the load change amount exceed predetermined values, it is determined that a passenger is on the car. The passenger discrimination means
In a state where the control by the guidance control means is stopped by the non-contact guidance control stop means, the output value by the sensor unit is when the car opens after the necessity to guide the car becomes necessary. The elevator according to claim 1, wherein it is determined that a passenger is in the car when a predetermined value is exceeded. The vehicle further comprises an operation state determination means for determining whether the operation mode of the car is between a normal operation mode and an automatic diagnosis operation mode for automatic diagnosis of an elevator,
The non-contact guidance control start means
When the non-contact guidance control stop means stops the control by the guidance control means, and when the driving state determination means determines that the operation mode of the car is the automatic diagnosis operation mode, the passenger determination means The elevator according to claim 1, wherein the guidance of the car is started by the guidance control means regardless of the determination result.

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