JP2011046494A - Elevator control device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an elevator control device capable of surely preventing a fireman in rescue operation from being shut up in a car of an elevator in operation in various emergency states. <P>SOLUTION: This elevator control device includes: a switch group having an emergency calling-out switch for switching the elevator to an emergency calling-back mode from an ordinary operation mode, a primary fire fighting switch for switching to a primary fire fighting operation mode from the ordinary operation mode, and a secondary fire fighting switch for switching to a secondary fire fighting operation mode from the primary fire fighting operation mode; an elevator control part for controlling the elevator by switching an operation mode of the elevator from information on the switch group; a door opening travel preventive part for controlling the elevator control part by monitoring door opening travel or elevator control abnormality independently of the elevator control part; and an operation mode detecting means for transmitting the operation mode to the door opening travel preventive part by detecting the operation mode from the information on the switch group. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an elevator apparatus safety control device, and more particularly to an elevator control device related to emergency operation control.

  In recent years, separately from elevator operation control, elevator door-open running and elevator control devices are monitored, and if an abnormality is detected in these, the elevator circuit is shut off and the elevator is stopped and the state is maintained. To do so is being mandated by safety standards.

  Accordingly, a monitoring device that is independent of the elevator control device is provided, and when the door opening traveling is detected by the detector and the abnormality is detected by the door opening abnormality determining circuit, the vehicle is prevented from traveling as it is in the door opening state (for example, Patent Documents). 1).

  In this way, when an abnormality in the elevator such as running with the door open is detected, the elevator drive circuit must be shut off to stop the elevator, and the stopped state must be maintained until the maintenance worker performs a return operation. Therefore, even if an abnormality occurs in the elevator while operating the elevator in the emergency operation mode at the time of fire fighting or an earthquake, the elevator stops. Even if safety is ensured and the elevator control device can be restarted after an abnormality has occurred, the elevator cannot travel until maintenance personnel arrive due to the stoppage and maintenance by the monitoring device. There is a risk that personnel will be trapped in the elevator car.

  For such problems, a monitoring control program for the abnormal operation of the elevator is set separately from the normal elevator operation control means, and when this program detects the occurrence of the abnormal operation of the elevator, the elevator operation control means is operated. An abnormal operation monitoring means for outputting a stop command; and a means for invalidating the operation stop command output by the abnormal operation monitoring means when an operation signal is input from the primary or secondary fire fighting operation switch. An emergency elevator control system is known (see Patent Document 2).

JP 2009-154988 A JP 2009-62127 A

  However, even with the system disclosed in Patent Document 2, it is possible for the staff of the disaster prevention center to manually move the elevator before the maintenance staff arrives, but there is a problem that it cannot always flexibly cope with various emergency situations. It was.

  Therefore, the present invention has been made to solve the above-described problem, and an elevator control device that can reliably prevent a firefighter or the like during rescue operation from being trapped in an elevator car during operation in various emergency states. The purpose is to provide.

  According to claim 1 of the present invention, the emergency call switch for switching the elevator from the normal operation mode to the emergency call back operation mode, the primary fire fighting switch for switching from the normal operation mode to the primary fire fighting operation mode, and the secondary fire fighting operation mode to the secondary fire fighting operation mode. A switch group having a secondary fire-fighting switch to be switched to, an elevator control unit that performs elevator control by switching the operation mode of the elevator from the information of the switch group, and the elevator control unit is independent of the door opening running or elevator control abnormality A door-opening travel prevention unit that controls the elevator control unit by monitoring a driving mode detection unit that detects an operation mode from the information of the switch group and transmits the operation mode to the door-opening travel prevention unit. An elevator control device is provided.

  According to claim 3, the emergency call switch for switching the elevator from the normal operation mode to the emergency call back operation mode, the primary fire fighting switch for switching from the normal operation mode to the primary fire fighting operation mode, and the primary fire fighting operation mode to the secondary fire fighting operation mode. The switch group having the secondary fire fighting switch to be switched, the elevator control unit that performs elevator control by switching the operation mode of the elevator from the information of the switch group, and the elevator control unit are independent of the door-open running or the elevator control abnormality. A door-opening travel prevention unit that monitors and controls the elevator control unit; an operation mode detection unit that detects an operation mode from information of the switch group and transmits the operation mode to the door-opening travel prevention unit; and the door-opening travel An abnormality that memorizes the elevator control abnormal state detected by the prevention unit Providing an elevator control apparatus characterized by having a state storing means.

  The elevator control apparatus according to the present invention provides an elevator control apparatus that can reliably prevent firefighters and the like who are rescued during operation in various emergency states from being trapped in the elevator car.

1 is a block diagram of an elevator control device according to a first embodiment of the present invention. It is a flowchart of the elevator control apparatus which concerns on the 1st Embodiment of this invention. It is a block diagram of the elevator control apparatus which concerns on the 2nd Embodiment of this invention. It is a flowchart of the elevator control apparatus which concerns on the 2nd Embodiment of this invention. It is a block diagram of the elevator control apparatus which concerns on the 3rd Embodiment of this invention. It is a flowchart of the elevator control apparatus which concerns on the 3rd Embodiment of this invention. It is a flowchart of the elevator control apparatus which concerns on the 4th Embodiment of this invention.

  Embodiments of the present invention will be described in detail with reference to the drawings.

<First Embodiment>
FIG. 1 is a block diagram of an elevator control apparatus according to the first embodiment of the present invention. The elevator control device according to this embodiment of the present invention includes an elevator control unit 11 that controls the operation of the elevator, and a door that monitors the abnormality of the elevator control including the elevator door opening travel independently of the elevator control unit 11. The operation mode of the elevator is detected by detecting operation information of an emergency call SW (switch) 13 used in emergency and primary fire fighting SW 14 and secondary fire fighting SW 15 used in fire fighting. The operation mode detection unit 16 is configured.

  In the emergency call back operation mode, all calls are canceled and go straight to the evacuation floor or the call back floor immediately above or below. In the primary firefighting operation mode, the hall call becomes invalid, and it becomes a kind of exclusive operation that goes straight to the destination floor without responding even if called on another floor. In the secondary fire-fighting operation mode, the door-to-door travel prevention circuit at the landing is disabled, and the vehicle can travel even when the car or the door at the landing is not closed.

  The emergency call SW 13 is installed in, for example, the monitoring panel 17 or the elevator hall 18 in the disaster prevention center or the like, and operating the switch 13 can notify the elevator control unit 11 and the operation mode detection unit 16 that it is an emergency. it can.

  The primary fire fighting SW 14 and the secondary fire fighting SW 15 are installed in the elevator car 19 and by operating these switches, it is possible to notify the elevator control unit 11 and the operation mode detection unit 16 that it is during fire fighting.

  In a normal elevator apparatus, when any one of the emergency call SW 13, the primary fire fighting SW 14, and the secondary fire fighting SW 15 is operated, the elevator control unit 11 recognizes the elevator operation mode as the emergency operation mode. However, in the present embodiment, information from these switches is transmitted to the operation mode detection unit 16, and the operation mode is transmitted to the door-opening travel prevention unit 12.

  FIG. 2 is a flowchart of the elevator control apparatus according to the first embodiment of the present invention.

This figure shows an emergency control flow of the door-opening travel prevention unit 12, and an elevator control operation in an emergency will be described.

  For example, when a disaster such as a fire or an earthquake occurs, any one of the emergency call SW 13, the primary fire fighting SW 14, and the secondary fire fighting SW 15 is operated (S201 / Yes). Thereby, the operation mode detection part 16 detects that it is an emergency operation mode (S202). At this time, in step S203, when the door opening prevention unit 12 detects an elevator control abnormality, that is, when the answer is YES in S203, the elevator drive circuit of the elevator control unit 11 is not shut off (S204).

  Thus, the car can continue to run. If an elevator control abnormality is not detected, that is, if No in step S203, the process returns to step S201 to detect whether any one of the operation switches of the emergency call SW13, the primary fire fighting SW14, and the secondary fire fighting SW15 is not operated. Do.

  If any one of the emergency call SW13, the primary fire fighting SW14, and the secondary fire fighting SW15 is not turned on, that is, if the answer is No in Step S201, the elevator operation mode is recognized as the normal operation mode (S205).

  At this time, when the door-opening travel prevention unit 12 detects an abnormality in step S206, that is, in the case of Yes in step S206, the door-opening travel prevention unit 12 shuts off the elevator drive circuit of the elevator control unit 11 (S207), and the elevator Is stopped (S208). If no abnormality is detected by the door-opening travel prevention unit 12 in step S206, that is, if no in step S206, the process returns to step S201, and any one of the emergency call SW13, the primary fire fighting SW14, and the secondary fire fighting SW15 is turned on. It is detected whether it is in the state.

  According to the elevator control apparatus configured as described above, the operation mode detection unit detects that the elevator is in an emergency mode from the normal operation mode when any one of the emergency call SW, the primary fire fighting SW, and the secondary fire fighting SW is turned on. It detects that it became driving mode, and transmits driving mode information to a door open travel prevention part. Thereby, even when the door-opening travel prevention unit detects an elevator door-opening travel or an elevator control abnormality, the elevator drive circuit should not be shut off if the operation mode detection unit is detecting the emergency operation mode of the elevator. Can do. Therefore, there is an effect that it is possible to prevent a situation in which a firefighter or the like during rescue work is trapped in the elevator car or a state where the elevator cannot be used after arriving at the rescue floor.

<Second Embodiment>
FIG. 3 is a block diagram of an elevator control apparatus according to the second embodiment of the present invention. In the present embodiment, in addition to the configuration of the first embodiment, when an elevator control abnormality occurs during emergency operation, an abnormal state storage unit that stores the abnormal state is provided. Thus, even if the power is turned off after an abnormal state is detected, it is possible to detect what kind of abnormal state the signal indicating the abnormal state is stored in the abnormal state storage unit.

  The elevator control device includes an elevator control unit 11 that controls the operation of the elevator, and a door-opening travel prevention unit 12 that monitors an abnormality in elevator control including the door-opening traveling of the elevator independently of the elevator control unit 11. An operation mode detection unit 16 that detects operation mode of the elevator by detecting operation information of the emergency call SW (switch) 13 used in an emergency, the primary fire fighting SW 14 and the secondary fire fighting SW 15 used in a fire fighting, It is comprised from the abnormal condition memory | storage part 31 which memorize | stores the elevator control abnormality including the door open travel of the elevator which the open travel prevention part 12 detects.

  The emergency call SW 13 is installed in a monitoring panel 17 or an elevator hall 18 in a disaster prevention center or the like, and an emergency signal can be transmitted to the elevator control unit 11 and the operation mode detection unit 16 by turning on these switches. .

  The primary fire fighting SW 14 and the secondary fire fighting SW 15 are installed in the elevator car 19, and when these switches are turned on, the fire fighting signal is transmitted, and the fact that it is during fire fighting is transmitted to the elevator control unit 11 and the operation mode detection unit 16. can do.

  In a normal elevator apparatus, when any one of the emergency call SW13, the primary fire fighting SW14, and the secondary fire fighting SW15 is turned on, the elevator control unit 11 recognizes the elevator operation mode as the emergency operation mode. On the other hand, in this embodiment, these SW information is connected also to the driving mode detection part 16, and the driving mode is transmitted to the door-opening travel prevention part 12.

  FIG. 4 is a flowchart showing an operation example of the elevator control apparatus according to the second embodiment of the present invention. This figure shows an emergency control flow of the door-open travel prevention unit 12, and the control operation of the elevator device in an emergency will be described.

  When a disaster such as a fire or an earthquake occurs, any one of the emergency call SW13, the primary fire fighting SW14, and the secondary fire fighting SW15 is turned on, that is, Yes in step S301. Thereby, the operation mode detection part 16 detects that it is an emergency operation mode (S302). At this time, when an elevator control abnormality is detected by the door-opening travel prevention unit 12 as shown in step S303, that is, in the case of Yes in step S303, the elevator drive circuit of the elevator control unit 11 is not shut off (S304). ). Therefore, the elevator car can continue to travel.

  In the next step S305, the abnormal state storage unit 31 stores the abnormal control state of the elevator. If an abnormality in the control of the elevator apparatus is not detected, that is, if No in step S303, the process returns to step S301, and any one of the emergency call SW13, primary fire fighting SW14, and secondary fire fighting SW15 is turned on. Detect if not.

  If any one of the emergency call SW 13, the primary fire fighting SW 14, and the secondary fire fighting SW 15 is not turned on, that is, No in step S301, the elevator operation mode is recognized as the normal operation mode (S 306). At this time, when the abnormal state history of the previous abnormal state storage unit 31 is referred to and the fact that there has been an abnormal state is stored, that is, when YES in step S307, the door-opening travel prevention unit 12 The elevator drive circuit is shut off to the control unit 11 (S309). Then, the elevator car stops (S310).

  On the other hand, when there is no history of abnormal conditions in step S307, that is, in the case of No in step S307, it is further determined whether an abnormality is currently detected by the door-opening travel prevention unit 12, and an abnormality is detected. In this case, that is, in the case of Yes in step S308, the door-opening travel prevention unit 12 blocks the elevator drive circuit with respect to the elevator control unit 11 (S309). Then, the elevator car stops (S310).

  If No in step S308, that is, if the door-opening travel prevention unit 12 does not detect an abnormality, the process returns to step S301, and any one of the emergency call SW13, the primary fire fighting SW14, and the secondary fire fighting SW15 is turned on. Detect if there is any.

  According to the second embodiment, when an elevator control abnormality occurs in the emergency operation mode, the abnormality state is stored, so that there was an abnormal state even when the power was cut off and returned. There is an advantage that can be detected.

<Third Embodiment>
FIG. 5 is a block diagram of an elevator control apparatus according to the third embodiment of the present invention. The difference between the present embodiment and the second embodiment is that a seismometer is provided and earthquake vibration detection is added to the detection item of the emergency operation mode.

  The elevator control device according to this embodiment includes an elevator control unit 11 that controls the operation of the elevator, and door-opening travel prevention that monitors the abnormalities of elevator control including the door-opening travel of the elevator independently of the elevator control unit 11. The operation mode of the elevator by detecting the occurrence of an earthquake by the seismometer 51, operation information of the emergency call SW (switch) 13 used in an emergency, the primary fire switch SW14 and the secondary fire switch SW15 used during fire fighting, and the seismometer 51 It comprises an operation mode detection unit 16 that detects and an abnormal state storage unit 31 that stores elevator control abnormalities including the door open travel of the elevator detected by the door open travel prevention unit 12.

  The emergency call SW 13 is installed in the monitoring panel 17 or the elevator hall 18 in the disaster prevention center or the like, and can operate the emergency call SW 13 to notify the elevator control unit 11 and the operation mode detection unit 16 that it is an emergency.

  The primary fire fighting SW 14 and the secondary fire fighting SW 15 are installed in the elevator car 19, and by operating these, it is possible to notify the elevator control unit 11 and the operation mode detection unit 16 that it is during fire fighting.

  The seismometer 51 is preferably an elevator hoistway 52, for example, a pit or a machine room. Thereby, when the seismometer 51 detects a certain level of vibration, the occurrence of the earthquake can be transmitted to the elevator control unit 11 and the operation mode detection unit 16. In seismic control mode, the car moves to the nearest floor and stops, opens the door and evacuates passengers.

  FIG. 6 is a flowchart of the elevator control apparatus according to the third embodiment of the present invention. This figure shows the control flow of the door-opening travel prevention unit 12 when an earthquake occurs, and the control operation of the elevator when an earthquake occurs will be described.

  When the seismometer 51 detects a certain level of vibration, that is, when the answer is Yes in step S601, the elevator control unit 11 sets the elevator operation mode to the earthquake control operation mode. At the same time, since the signal of the seismometer 51 is also input to the operation mode detection unit 16, the operation mode detection unit 16 recognizes that it is in the seismic control operation mode (S602).

  If the door-opening travel prevention unit 12 detects an elevator control abnormality such as door-opening travel during operation in the seismic control operation mode, that is, if YES in step S603, the elevator drive circuit of the elevator control unit 11 is not shut off (S604). In addition, the running state is continued, and the abnormal state detection unit 31 stores the detected abnormal state (S605).

  On the other hand, if no elevator control abnormality is detected in step S603, that is, if this step is No, the process returns to step S601, and the seismometer 51 detects the occurrence of an earthquake. Further, when the shaking of the earthquake stops, the information of the seismometer 51 is reset (S601 / No), and the operation mode detection unit 16 detects that the seismic control operation mode has been switched to the normal operation mode (S606). . At this time, when the abnormal state history of the abnormal state storage unit 31 is referred to and the history of the abnormal state is stored, that is, in the case of Yes in step S607, the door-opening travel prevention unit 12 is the elevator control unit 11 On the other hand, the elevator drive circuit is shut off (S609). Then, the elevator car stops (S610).

  On the other hand, if there is no abnormal state history in step S607, that is, if No, it is further determined whether the elevator opening prevention unit 12 is currently detecting an elevator control abnormality. When the abnormality is detected, that is, in the case of Yes in step S608, the door-opening travel prevention unit 12 blocks the elevator drive circuit with respect to the elevator control unit 11 (S609). Then, the elevator car stops (S610).

  On the other hand, when the door-opening travel prevention unit 12 does not detect an abnormality in step S608, that is, in the case of No, the process returns to step S601 and the earthquake occurrence is detected by the seismometer 51.

  In the above embodiment, the operation mode detection unit can detect the occurrence of an earthquake, and even if an elevator control abnormality occurs due to the earthquake, it is possible to continue traveling without interrupting the elevator drive circuit. Therefore, it is possible to prevent a passenger traveling on the nearest floor from being trapped in the car. In addition, since the control abnormal state of the elevator that occurred during an earthquake is stored, it is possible to prevent the elevator from running with control abnormal even if a power failure occurs during the earthquake and then return to normal operation. is there.

<Fourth Embodiment>
FIG. 7 is a flowchart of the elevator control apparatus according to the fourth embodiment of the present invention. In the present embodiment, the configuration of the elevator control device is the same as that of the third embodiment, but the control operation combined with the emergency SW will be described.

  When the seismic intensity meter 51 detects a certain level of vibration, ie, Yes in step S701, or when no earthquake is detected, ie, No in step S701, the emergency call SW13, the primary fire fighting SW14, and the secondary fire fighting When any of the SWs 15 is turned on (Yes in step S704), the operation mode detection unit 16 detects the seismic control operation mode (S702) or the emergency operation mode (S705), respectively, and the door-opening travel prevention unit 12 The operation mode is transmitted to.

  When the door-opening travel prevention unit 12 receives the earthquake control operation mode or emergency operation mode information, monitoring of elevator control abnormality such as door-opening traveling of the elevator car is stopped and the elevator traveling is enabled ( S703).

  If any of the emergency call SW13, the primary fire fighting SW14, and the secondary fire fighting SW15 is OFF, that is, No in step S704, the normal operation mode is set (S706). When the operation mode detection unit 16 detects that the elevator operation mode has been switched, that is, in the case of Yes in step S707, the door-opening travel prevention unit 12 performs a self-diagnosis of the elevator control unit 11, and self-normality Check. (S708). In the case of No in step S707, the self-diagnosis of the elevator control unit 11 is not performed, and the process proceeds to the next step S709.

  Here, the self-diagnosis is to confirm whether or not the abnormal state has disappeared from the beginning. If an abnormality in the elevator control unit is detected by the self-diagnosis check, that is, if the answer is YES in step S709, the elevator drive circuit is shut off (S710) and the elevator car travel is prohibited (S711). If no abnormality is detected in step S709, that is, if No, the process returns to step S701.

  In the above embodiment, while the operation mode detection unit detects the emergency operation or seismic control operation mode, monitoring by the door-opening travel prevention unit is temporarily suspended, but when switching to normal operation, the self-diagnosis of the elevator control unit To check the normality of the elevator controller. Therefore, it is possible to prevent the elevator from traveling while being abnormal.

  As described above, according to the elevator apparatus according to the present invention, it is possible to prevent the elevator car from stopping when a firefighter or the like performs a rescue operation or the like during an earthquake or a fire.

  The present invention is not limited to the above-described embodiment, and can be implemented with various modifications. In practice, the structural elements can be modified and embodied without departing from the spirit of the invention. Various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the embodiment. For example, some components may be deleted from all the components shown in the embodiment. Furthermore, the constituent elements over different embodiments may be appropriately combined. As long as the technical idea of the present invention is used, these modified examples are also included in the present invention.

11 ... elevator control unit,
12 ... Door opening travel prevention part,
13 ... Emergency call switch
14 ... Primary fire switch,
15 ... Secondary fire switch,
16 ... operation mode detector,
17 ... Monitoring board,
18 ... Hall,
19 ... the car,
31 ... Abnormal state storage unit,
51 ... Seismometer,
52 ... hoistway.

Claims (7)

A group of switches having an emergency call switch for switching the elevator from the normal operation mode to the emergency call back operation mode, a primary fire switch for switching from the normal operation mode to the primary fire fighting operation mode, and a secondary fire switch for switching from the primary fire fighting operation mode to the secondary fire fighting operation mode. When,
An elevator controller that performs elevator control by switching the operation mode of the elevator from the information of the switch group; and
Independent of the elevator control unit, the door opening traveling prevention unit that monitors the door opening traveling or elevator control abnormality and controls the elevator control unit,
An elevator control device comprising: an operation mode detection unit that detects an operation mode from information of the switch group and transmits the operation mode to the door-open travel prevention unit.   When the operation mode detecting means detects the emergency operation mode of the elevator, when the door-opening travel prevention unit detects the door-opening travel of the elevator or the control error of the elevator, the door-opening travel prevention unit includes the elevator control unit. 2. The elevator control apparatus according to claim 1, wherein the elevator drive circuit is not shut off. A group of switches having an emergency call switch for switching the elevator from the normal operation mode to the emergency call back operation mode, a primary fire switch for switching from the normal operation mode to the primary fire fighting operation mode, and a secondary fire switch for switching from the primary fire fighting operation mode to the secondary fire fighting operation mode. When,
An elevator controller that performs elevator control by switching the operation mode of the elevator from the information of the switch group; and
Independent of the elevator control unit, the door opening traveling prevention unit that monitors the door opening traveling or elevator control abnormality and controls the elevator control unit,
An operation mode detecting means for detecting an operation mode from the information of the switch group and transmitting the operation mode to the door-opening travel prevention unit;
An elevator control device comprising: an abnormal state storage means for storing an elevator control abnormal state detected by the door-opening travel prevention unit.   When the operation mode detecting means detects that the elevator operation mode has been switched from the emergency operation mode to the normal operation mode, the door opening travel prevention is performed when the abnormal state storage means stores the elevator abnormality. 4. The elevator control device according to claim 3, wherein the section cuts off the elevator drive circuit.   The elevator control device according to claim 1 or 3, further comprising a switch for switching to a seismic control operation mode by a seismometer that senses the occurrence of an earthquake in the switch group.   When the seismometer detects vibration above a certain level, the operation mode detection means detects that the elevator has changed from the normal operation mode to the seismic control operation mode, and also provides operation mode information to the door-opening travel prevention unit. When the operation mode detecting means detects the seismic control operation mode information of the elevator and the door open travel prevention unit detects an elevator door open travel or an elevator control abnormality, the elevator drive circuit is shut off. If the abnormal state storage means stores the elevator abnormal state when the operation mode detection means detects that the seismic control operation mode has been switched to the normal operation mode, the door opening travel prevention unit 6. The elevator control device according to claim 5, wherein the elevator drive circuit is shut off.   When the operation mode detection means is detecting the emergency operation mode or the seismic control operation mode, the monitoring of the door-opening travel prevention unit is temporarily interrupted, and it is detected that the operation mode detection means has switched to the normal operation mode. 6. The elevator control apparatus according to claim 5, wherein the door-opening travel prevention unit has a function of performing a self-diagnosis of the elevator control unit.

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