JP2018030693A - Elevator - Google Patents

Abstract

Even when a power supply capacity of a battery is reduced, confinement of passengers in a passenger car is suppressed. In an elevator including a car (1), a control panel (25), and a battery (7), the control panel is configured to diagnose a remaining battery level, a battery remaining capacity diagnosis unit (14), and Elevator control device (5) having a car position determination unit (15) for determining the stop position of the car, and landing operation at the nearest floor during a power outage that causes the car to land on the nearest floor by power supply from the battery during a power outage Even when the remaining battery level diagnosis unit diagnoses that the remaining battery level is less than a predetermined threshold, the car position determination unit includes When it is determined that the stop position of the car at the time of a power failure does not interfere with the predetermined area (19), the nearest floor landing device at the time of a power failure performs the nearest floor landing operation at the time of a power failure. [Selection] Figure 1

Description

  The present invention relates to an elevator that rescues passengers by performing an operation of landing a car to the nearest floor by power supply from a battery during a power failure.

  As background art of this technical field, for example, Patent Document 1 states that “a second power source (battery power source) is set before a planned power outage starts based on planned power outage information in which a power outage start time and a power outage period are predetermined. Charging from one power source (commercial power source) Determination of the remaining battery level of the second power source confirmed by the remaining battery level monitoring device and the remaining battery level that can be operated during the planned remaining blackout time If it is determined that the remaining battery level is equal to or higher than the judgment value, the elevator operation service is permitted, and the result of the verification is that the remaining battery level is less than or less than the judgment value. If it is determined, the control operation is performed so that the elevator operation service is suspended until the remaining battery level exceeds or exceeds the determination value (summary). Irradiation).

JP 2014-139098 A

  At the time of a power outage when the elevator stops at the landing floor in the event of a power outage and powers the battery to the nearest floor in order to prevent passengers from being trapped in the car The nearest floor landing operation is performed. However, when the power capacity of the battery is low, the car cannot be landed on the nearest floor, and there is a possibility that passengers will be trapped in the car.

  Patent document 1 mentions the operation of the elevator based on the remaining battery level at the time of a planned power outage, but when performing the nearest floor landing operation at the time of a power outage in the event of an emergency, the power capacity of the battery is reduced. There is no mention of restraining passengers in the car.

  Therefore, the present invention provides an elevator that can suppress the confinement of passengers in the passenger car even when the power capacity of the battery is low when performing the nearest floor landing operation in the event of a power failure in an emergency. The purpose is to do.

  In order to achieve the above-described object, a typical present invention includes a car provided in a hoistway, a control panel that controls the raising / lowering operation of the car, and a battery that supplies power to the control board in an emergency. In the elevator in which the control panel and the battery are installed in a predetermined region in the hoistway, the control panel includes a battery remaining amount diagnosis unit that diagnoses the remaining amount of the battery, and the car The elevator control device having a car position determination unit for determining a stop position, and the nearest floor at the time of a power failure that performs the nearest floor landing operation at the time of a power failure to land the car on the nearest floor by power supply from the battery at the time of a power failure Even if the remaining battery level is diagnosed by the battery remaining amount diagnosis unit to be less than a predetermined threshold, the car position determination unit causes the boarding during power failure. If stop position is determined not to interfere with the predetermined region, wherein the nearest floor landing device power failure which comprises carrying out the nearest floor landing operation during the power failure.

  ADVANTAGE OF THE INVENTION According to this invention, when performing the nearest floor landing operation at the time of a power failure at the time of an emergency, even if it is a case where the power supply capacity of a battery is falling, the confinement in a passenger's car can be suppressed. Problems, configurations, and effects other than those described above will be clarified by the following description of embodiments.

It is a whole elevator block diagram which shows 1st Embodiment of this invention. It is a side view which shows the positional relationship of the riding car control panel and a battery in a hoistway. It is a top view which shows the positional relationship of the boarding car control panel and battery in a hoistway. It is a flowchart which shows the procedure of the control processing of the nearest floor landing operation at the time of the power failure of the elevator which concerns on 1st Embodiment. It is a flowchart which shows the procedure of the control processing of the nearest floor landing operation at the time of the power failure of the elevator which concerns on 2nd Embodiment.

“First Embodiment”
Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an overall configuration diagram of an elevator showing a first embodiment of the present invention, FIG. 2 is a side view showing a positional relationship between a car and a control panel and a battery in the hoistway, and FIG. 3 is a car in the hoistway. It is a top view which shows the positional relationship of a control panel and a battery.

  As shown in FIG. 1, the elevator according to the first embodiment includes a car 1, a counterweight 3 connected to the car 1 via a wire rope 2, and an electric winding around which the wire rope 2 is wound. The upper unit 4, a control panel 25 for controlling the elevator, and a battery 7 for supplying power to the control panel 25 in an emergency are provided. Electric power is supplied to the hoisting machine 4 and the control panel 25 from a three-phase AC power source 8 which is a commercial power source via an electric wiring 9. Then, by driving the hoisting machine 4, the car 1 and the counterweight 3 are guided by the guide rails 30 and 31, respectively, to move up and down (see FIG. 3).

  The car 1 is provided with a load sensor 26, and a detection signal from the load sensor 26 is input to the control panel 25 via a signal line (not shown). The hoisting machine is provided with a rotary encoder 27, and a detection signal from the rotary encoder 27 is input to the control panel 25 through a signal line (not shown). In the present embodiment, the load sensor 26 is used as means for detecting the presence or absence of a passenger in the car 1, but instead of the load sensor 26, for example, a camera or the like installed in the car 1 can be used. Further, in this embodiment, the rotary encoder 27 is used as means for detecting the stop position of the car 1, but instead of the rotary encoder 27, for example, provided on each floor in order to detect the stop position of the car 1. A sensor or the like can also be used.

  The control panel 25 includes, for example, a CPU (Central Processing Unit) (not shown), a storage device such as a ROM (Read Only Memory) and an HDD (Hard Disc Drive) that stores various programs for executing processing by the CPU, and a CPU. It is configured by using hardware including a RAM (Random Access Memory) serving as a work area when executing the program. In addition to the normal elevator operation control program, the various programs include a control program for landing the car 1 on the nearest floor in the event of a power failure.

  The control panel 25 has an elevator control device 5 that performs overall control of the elevator, and when a power failure occurs in an emergency, the control floor 25 performs the nearest floor landing operation during a power failure that causes the car 1 to land on the nearest floor. A floor landing device 6.

  The elevator control device 5 monitors the elevator control unit 12 that controls the operation of the elevator and the state of the elevator, and also sends a notification signal to the control center (monitoring base) 11 via the public line 10 when an abnormality occurs. From the elevator state monitoring / reporting unit (reporting unit) 13 to be transmitted, the battery remaining amount diagnostic unit 14 for diagnosing whether or not the remaining amount (SOC) of the battery 7 is equal to or greater than a predetermined threshold, and the rotary encoder 27 A car position determination unit 15 that determines whether or not the car position (stop position) of the car 1 is at a position that interferes with the control panel 25 and the battery 7 (opposite position), and a three-phase AC Monitors the supply of power from the power supply 8, switches the power supply from the three-phase AC power supply 8 to the battery 7 at the time of a power failure, and executes the nearest floor landing operation at the time of a power failure to the nearest floor landing device 6 at the time of a power failure The in-car passenger presence / absence determination unit 17 for determining the presence / absence of passengers in the car 1 based on the detection signal from the load sensor 26, the nearest floor landing instruction unit 16 at the time of a power failure, and maintenance personnel A manual brake release control unit 18 that performs control for manually releasing the brake attached to the hoisting machine 4 and moving the car 1.

  As shown in FIG. 2, in this embodiment, a battery 7 is installed in a pit (bottom) 22 of the hoistway 21, and a control panel 25 (elevator control device 5, the nearest floor landing device during a power failure) is placed on the battery 7. 6) is placed. As shown in FIG. 3, the battery 7 and the control panel 25 are installed adjacent to the side wall of the hoistway 21 so as not to interfere with the raising and lowering of the car 1. The battery 7 and the control panel 25 need only be installed in the hoistway 21 and do not necessarily have to be installed in the pit 22.

  As shown in FIG. 2, an installation area (predetermined area) from a first position 19 a that is substantially equal to the height of the upper surface of the control panel 25 to a second position 19 b that is the position of the lower surface of the battery 7 (the floor surface of the pit 22). ) In a state where the car 1 is stopped in 19 (the state of the car 1 indicated by a one-dot chain line in FIG. 2), the car 1 becomes in the way and the maintenance staff cannot access the battery 7 and the control panel 25. . That is, when the car position of the car 1 interferes with the installation area 19 at the time of a power failure (physically when the side surface of the car 1 faces the installation area 19), the maintenance staff replaces the battery 7. I can't. Therefore, in this embodiment, as will be described later, whether or not to perform the nearest floor landing operation at the time of a power failure is determined depending on whether or not the car position of the car 1 interferes with the installation area 19. .

  Next, the details of the nearest floor landing operation at the time of a power failure of the elevator will be described with reference to FIG. FIG. 4 is a flowchart showing a procedure of control processing of the nearest floor landing operation at the time of a power failure of the elevator according to the first embodiment.

  First, when a power failure occurs, the battery remaining amount diagnosis unit 14 diagnoses whether or not the remaining amount of the battery 7 is equal to or greater than a predetermined threshold (operation threshold). It is determined whether or not floor operation is possible (S1). Here, the predetermined threshold value is a remaining electric power necessary for driving the hoisting machine 4 in order to land the car 1 on the nearest floor.

  When the remaining amount of the battery 7 is less than a predetermined threshold (S1 / YES), the passenger presence / absence determination unit 17 in the car determines whether or not there is a passenger in the car 1 (S2), and the passenger is in the car 1 If it exists (S3 / YES), the elevator state monitoring / reporting unit 13 issues an over-threshold value alert (first alert) to the control center 11 (S3), and the completion is confirmed by the elevator control unit 12 (S4). ).

  Next, when the elevator control unit 12 can confirm the completion of over-threshold alerting (S4 / YES), the car position determination unit 15 causes the current car position (stop position) of the car 1 to interfere with the installation area 19. It is determined whether or not to perform (S5). That is, it is determined from the car position of the car 1 whether or not the maintenance personnel can access the control panel 25 and the battery 7 to replace the battery 7.

  When the car 1 interferes with the installation area 19 (S5 / YES), when there is no passenger in the passenger presence / absence determination in the car 1 (S2 / NO), and the completion of the over-threshold alert is confirmed. If not (S4 / NO), the nearest floor landing device 6 during a power failure prohibits the nearest floor landing operation during a power failure (S6). Then, the maintenance person manually releases the brake, and the manual brake release control unit 18 controls the car 1 to move to the landing possible position, and rescues the passenger (S9). In addition, since the small-capacity electric power is sufficient for driving the manual brake release control unit 18 in S9, it can be driven even when the remaining amount of the battery 7 is small.

  Here, when the remaining amount of the battery 7 is equal to or greater than the predetermined threshold (S1 / NO) and even when the remaining amount of the battery 7 is less than the predetermined threshold (S1 / YES), the car position of the car 1 is When there is no interference with the installation area 19 (S5 / NO), the nearest floor landing device 6 at the time of power failure receives power supply from the battery 7 in response to an instruction from the nearest floor landing instruction unit 16 at the time of power failure. The nearest floor landing operation is carried out (S10).

  Furthermore, when the landing to the nearest floor is successful by the nearest floor landing operation at the time of power failure (S11 / YES), the elevator state monitoring / reporting unit 13 issues a restoration report to the control center 11 (S12). Then, the elevator control unit 12 automatically opens the door of the car 1 that has landed on the nearest floor to rescue the passenger.

  On the other hand, for example, the remaining amount of the battery 7 is not sufficient, and the remaining amount of the battery 7 runs out during the nearest floor landing operation at the time of a power failure, and the landing to the nearest floor by the nearest floor landing operation at the time of a power failure fails. If it is (S11 / NO), the elevator state monitoring / reporting unit 13 performs the trapping report (second report) in the control center 11 (S7). Since the car 1 does not interfere with the installation area 19 in S7, the maintenance staff who has received the confinement notification immediately enters the pit 22 of the hoistway 21 and replaces the battery 7 (S8). The brake is released, and the manual brake release control unit 18 performs control so that the car 1 is moved to the landing possible position, and rescues the passenger (S9).

  Thus, even when the remaining amount of the battery 7 is not sufficient for performing the nearest floor landing operation at the time of a power failure, if the car position of the car 1 does not interfere with the installation area 19, the battery 7 is Use and move the car 1 as close as possible to the nearest floor, and the maintenance staff replaces it with a new battery 7 and manually moves the car 1 to the nearest floor, so that it is as fast as possible. Passengers can be rescued. That is, the time during which the passenger is trapped in the car 1 can be shortened, and the passenger's anxiety can be resolved.

  In addition, by performing an over-threshold alert (S3) and confinement alert (S7), the maintenance staff can stop the car 1 during the nearest floor landing operation during a power failure (the nearest floor landing during a power failure). It is possible to recognize that there is a case where the operation fails), so it is possible to prepare a new battery 7 in advance and go to the site. Therefore, a quick and appropriate response in an emergency is possible. Further, when there is no passenger in the car 1, the floor landing operation at the time of power failure is not performed, so that wasteful consumption of the battery 7 can be suppressed in an emergency.

“Second Embodiment”
Next, an elevator according to a second embodiment of the present invention will be described. In the second embodiment, even when the position where the car 1 stops at the time of a power failure does not interfere with the installation area 19, when the car 1 is landed on the nearest floor, the car position interferes with the installation area 19. Is characterized by the fact that the nearest floor landing operation is not performed during a power failure. Therefore, the description of the same configuration as in the first embodiment is omitted, and this feature will be mainly described.

  FIG. 5 is a flowchart showing a procedure of control processing of the nearest floor landing operation at the time of a power failure of the elevator according to the second embodiment. As shown in FIG. 5, in the second embodiment, even when the current car position of the car 1 does not interfere with the installation area 19 (S5 / NO), the car is moved by the nearest floor landing operation at the time of power failure. When 1 is moved to the nearest floor, the car position determination unit 15 determines whether or not the car 1 may interfere with the installation area 19 (S5-1). If there is such a possibility (S5-1 / YES), the floor landing operation at the time of a power failure is prohibited (S6), and if there is no possibility (S5-1 / NO), a power failure is caused. The nearest floor landing operation is carried out (S10).

  For example, in an elevator installed in a high-rise building or the like, the car 1 may not stop on each floor. Therefore, even if the position where the car 1 stops due to a power failure does not interfere with the installation area 19, the car 1 may interfere with the installation area 19 if the car 1 is moved to the nearest floor. is there.

  Therefore, in the present embodiment, by adding the process of S5-1, even if the current stop position of the car 1 does not interfere with the installation area 19, if it moves to the nearest floor, it interferes with the installation area 19 If it is to be done, the determination in S5-1 by the car position determination unit 15 is YES, and the nearest floor landing operation during a power failure is prohibited (S6). Thereby, in 2nd Embodiment, even if it is an elevator installation installed in a high-rise building, the confinement of the passenger in the passenger car 1 when the remaining amount of the battery 7 is small can be suppressed.

  In addition, this invention is not limited to embodiment mentioned above, Various modifications are included. For example, the above-described embodiment has been described in detail for easy understanding of the present invention, and is not necessarily limited to the one having all the configurations described.

  For example, even when the car 1 is stopped due to interference with the installation area 19, the nearest floor landing operation at the time of a power failure that moves the car 1 to the nearest floor in a direction to avoid the interference is performed. You may make it do. By doing so, the time during which passengers are trapped in the car 1 can be shortened.

DESCRIPTION OF SYMBOLS 1 ... Car 5 ... Elevator control device 6 ... The nearest floor landing device at the time of a power failure 7 ... Battery 11 ... Control center (monitoring base)
13 ... Elevator condition monitoring / reporting section (reporting section)
DESCRIPTION OF SYMBOLS 14 ... Battery remaining amount diagnostic part 15 ... Car position determination part 17 ... Passenger presence-in-absence determination part 19 ... Installation area | region (predetermined area | region)
21 ... hoistway 25 ... control panel

Claims (4)

A car provided in the hoistway, a control board for controlling the raising / lowering operation of the car, and a battery for supplying electric power to the control board in an emergency, the control board and the battery being in the hoistway In an elevator installed in a predetermined area of
The control panel
An elevator control device having a battery remaining amount diagnosis unit for diagnosing the remaining amount of the battery, and a car position determination unit for determining a stop position of the car;
A power outage nearest floor landing device that performs the nearest floor landing operation during a power outage that causes the car to land on the nearest floor by power feeding from the battery during a power outage,
Even when the remaining battery level diagnosis unit diagnoses that the remaining battery level is less than a predetermined threshold, the car position determination unit sets the stop position of the car at the time of a power failure as the predetermined area. The elevator characterized in that, when it is determined that there is no interference, the nearest floor landing device at the time of power failure performs the nearest floor landing operation at the time of power failure. In claim 1,
The elevator control device has a reporting unit for reporting to a monitoring base,
When the remaining battery level diagnosis unit diagnoses that the remaining battery level is less than the predetermined threshold, the reporting unit is configured to perform the nearest floor landing operation during the power failure before performing the nearest floor landing operation. An elevator characterized by performing a first notification to a monitoring base. In claim 2,
The elevator characterized in that, when the remaining amount of the battery runs out and the floor landing operation at the time of the power outage stops halfway, the reporting unit performs a second notification to the monitoring base. In claim 3,
The elevator control device has a passenger presence / absence determination unit for determining the presence / absence of passengers in the car,
When it is determined by the passenger presence / absence determination unit in the car that there is no passenger in the car, the nearest floor landing device during a power failure prohibits the nearest floor landing operation during the power failure. Elevator.