JP2017114580A - Elevator system, and elevator control device to be used for the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elevator system for performing operation control of an elevator for securing safety of a worker, on the basis of a working condition of the worker who performs an inspection work on an upper part of a car, and to provide an elevator control device to be used for the same.SOLUTION: An elevator system includes: elevator control devices which are installed in a plurality of elevators adjacently installed in a building and connected to each other; and a body state monitor mounted on a worker who performs an inspection work in one of the elevators. The body state monitor generates a body abnormal signal and transmits when it is determined that there is abnormality in a body state of the worker. The elevator control device stops the operation of own elevator when it is detected that there is a worker on a car of the own elevator and the body abnormal signal is received, and stops the operation of adjacent elevators when it is detected that the worker leans out from an upper surface area of the car.SELECTED DRAWING: Figure 1

Description

  Embodiments described herein relate generally to an elevator system and an elevator control device used therefor.

  Generally, a plurality of elevators are installed adjacent to each other in a large building such as an office building or a commercial facility. By installing a plurality of elevators, the elevators can be operated corresponding to a large number of users.

  When inspection work is performed for a plurality of adjacent elevators as described above, the inspection is sequentially performed one by one. At that time, the normal operation is continued except for one of the work targets. Therefore, an operator who performs an inspection work on the upper part of the car or the like needs to pay attention so as not to come into contact with the car or counterweight of the adjacent elevator.

Japanese Patent No. 5443245

  In view of this, there is a technique for issuing an alarm when an elevator that is performing an inspection operation and an elevator car or counterweight adjacent to the elevator approach. However, if this technology is used, an alarm is issued even when the worker is working normally in the area on the car and it is unlikely that the worker will be in contact with an adjacent car. There was a problem that it might interfere.

  The present invention has been made in view of the above circumstances, and an elevator system that controls the operation of an elevator for ensuring the safety of the worker based on the work status of the worker who performs the inspection work on the upper part of the car An object of the present invention is to provide an elevator control device used therefor.

  According to an embodiment for achieving the above object, an elevator system includes: an elevator control device installed in each of a plurality of elevators installed adjacent to each other in a building and connected to each other; A body condition monitoring device attached to a worker who performs. The physical condition monitoring device generates and transmits a physical abnormality signal when it is determined that there is an abnormality in the physical condition of the worker. Each of the elevator control devices detects that there is a worker on the elevator car and receives an abnormality signal, and stops the operation of the elevator so that the worker can start from the upper surface area of the elevator car. When it is detected that the vehicle has started, the operation of the adjacent elevator is stopped.

1 is an overall view showing the configuration of an elevator system according to a first embodiment. FIG. 2 is an external perspective view showing a car upper area outside detection device used in the elevator system according to the first embodiment. The block diagram which shows the structure of the elevator system by 1st Embodiment. The flowchart which shows operation | movement of the control apparatus utilized for the elevator system by 1st Embodiment. The flowchart which shows operation | movement of the control apparatus utilized for the elevator system by 2nd Embodiment. The flowchart which shows operation | movement of the control apparatus utilized for the elevator system by 3rd Embodiment. The block diagram which shows the structure of the elevator system by 4th Embodiment. The flowchart which shows operation | movement of the control apparatus utilized for the elevator system by 4th Embodiment. The flowchart which shows operation | movement of the control apparatus utilized for the elevator system by 5th Embodiment.

<< First Embodiment >>
<Configuration of the elevator system according to the first embodiment>
The configuration of the elevator system according to the first embodiment of the present invention will be described with reference to FIG.

  The elevator system 1 according to the present embodiment has three elevators, an A-unit elevator 2-1, a B-unit elevator 2-2, and a C-unit elevator 2-3 installed adjacent to each other in a building, and a worker possesses them. It is comprised with the body condition monitoring apparatus 10 which does. In FIG. 1, about the elevator of Unit A, Unit B, and Unit C, the same numbers are used for the same components, and these numbers are shown with the symbols a, b, or c corresponding to the units. Yes. In the present embodiment, the case where three elevators are installed adjacent to each other has been described. However, the present invention is not limited to this, and two or four or more elevators may be installed adjacent to each other.

  The A-unit elevator 2-1, the B-unit elevator 2-2, and the C-unit elevator 2-3 are each a car 3a, 3b, 3c that travels in the hoistway, and a car 3a that is installed in the upper part of the hoistway. And control devices 4a, 4b, and 4c connected to 3b and 3c, respectively. On the upper side of the cars 3a, 3b, 3c, the car load detecting devices 5a, 5b, 5c and the car upper area detecting devices 6a, 6b, 6c are connected to the control devices 4a, 4b, 4c, respectively. is set up. The on-car load detection devices 5a, 5b, and 5c detect the load amount applied to the upper surfaces of the passenger cars 3a, 3b, and 3c, generate a load amount detection signal indicating the detected load amount, and corresponding control devices 4a and 4b. 4c. The car upper area detection devices 6a, 6b, 6c recognize the frame of the upper surface area of each of the cars 3a, 3b, 3c, and send out the car area detection signal when detecting that the worker has left the area. Generate and transmit to the corresponding control devices 4a, 4b, 4c.

  An example of the configuration of the car upper area detection device will be described with reference to FIG. FIG. 2 is an external perspective view showing the configuration of the out-of-cab area detection device 6b of the No. B elevator 2-2, and the out-of-cab area detection devices 6a and 6c have the same configuration. The car upper area detection device 6b receives a column 61b in which a plurality of light projecting units 611b to 618b that project infrared light are installed at equal intervals in the vertical direction and the infrared light projected from the light projecting units 611b to 618b, respectively. The column 62b on which the light receiving units 621b to 628b are installed, the column 63b in which a plurality of light projecting units 631b to 638b are installed at equal intervals in the vertical direction, and the infrared rays projected from the light projecting units 631b to 638b, respectively. Four struts with the struts 64b on which the light receiving portions 641b to 648b for receiving light are installed are installed at the four corners of the upper surface of the car 3b.

  The column 61b and the column 62b are installed on the side of the car 3b adjacent to the elevator C-2, and the columns 63b and 64b are installed on the side of the elevator 3b adjacent to the elevator A-2. Has been. Each of the light receiving units 621b to 628b and 641b to 648b generates an out-of-car area detection signal indicating that the worker has left the upper surface area of the car 3b when infrared rays are not normally received. It transmits to the control apparatus 4b with identification information.

  The configuration of the physical condition monitoring device 10 and the control devices 4a to 4c will be described with reference to FIG. The physical condition monitoring device 10 is configured by, for example, a wristband type wearable terminal and is worn by a worker, and includes a physical information acquisition unit 11, a physical abnormality determination unit 12, and a signal transmission unit 13. The body information acquisition unit 11 acquires information on the body state such as the body temperature, heart rate, pulse rate, and sweating amount of the worker wearing the body state monitoring device 10. Based on the information acquired by the physical information acquisition unit 11, the physical abnormality determination unit 12 determines whether there is an abnormality in the worker's body. The signal transmission unit 13 generates a physical abnormality signal and transmits it to the nearest control device 4a, 4b, or 4c when the physical abnormality determination unit 12 determines that there is an abnormality in the worker's body. .

  The control devices 4a, 4b, and 4c are respectively on-car worker detection units 41a, 41b, and 41c, on-board detection units 42a, 42b, and 42c, physical information signal reception units 43a, 43b, and 43c, and an operation control unit 44a, 44b, 44c. Here, the operation control units 44a, 44b, and 44c are connected in a state where they can communicate with each other. The car worker detection units 41a, 41b, and 41c are respectively placed on the cars 3a, 3b, and 3c based on the load amount included in the load amount detection signals transmitted from the car load detecting devices 5a, 5b, and 5c. Detecting workers. The boarding detection units 42a, 42b, and 42c respectively detect that the worker has boarded the cars 3a, 3b, and 3c based on the car area outside detection signals transmitted from the car outside area detection devices 6a, 6b, and 6c. Detect. Each of the body information signal receiving units 43a, 43b, and 43c receives the body abnormality signal transmitted from the body state monitoring device 10.

  The operation control units 44a, 44b, and 44c respectively detect the worker detection information on the cars 3a, 3b, and 3c determined by the on-car worker detection units 41a, 41b, and 41c, and the start-up detection units 42a, 42b, and 42c. On the basis of the presence or absence of the worker detected in, and the physical abnormality signal received by the physical information signal receiving units 43a, 43b, 43c, the corresponding No. A elevator 2-1, No. B elevator 2-2, Alternatively, the operation of the C-unit elevator 2-3 is controlled. Specifically, when it is detected that a worker is on the elevator car and a body abnormality signal is received, the operation of the elevator is stopped. Further, when it is detected that the worker has gone out of the area on the cars 3a, 3b, 3c, an operation stop instruction for the elevator adjacent to the position where the worker is present is generated and transmitted to the corresponding control device. To do. In addition, when an operation stop instruction is received from an adjacent elevator control device during inspection work, the operation of the own elevator is stopped.

<Operation of the elevator system according to the first embodiment>
Next, as an example of the operation of the elevator system 1 according to the present embodiment, a process executed by each device in the elevator system 1 when an operator performs an inspection work on the No. B elevator 2-2 will be described. First, the worker wears the body condition monitoring device 10 when starting the inspection work. In the body condition monitoring apparatus 10, the body information, the heart rate, the pulse rate, and the sweating amount of the worker are acquired at predetermined time intervals in the body information acquisition unit 11. When such physical information is acquired, the body abnormality determination unit 12 determines whether or not there is an abnormality in the worker's body. For example, when the heart rate information of 150 bpm is acquired by the body information acquisition unit 11 while the normal heart rate of the worker is 60 to 70 bpm, the worker develops angina pectoris etc. It is possible that there is a possibility that the body is abnormal. When it is determined by the body abnormality determination unit 12 that there is an abnormality in the worker's body, a signal abnormality unit 13 generates a body abnormality signal and transmits it to the control device 4b which is the nearest control device.

  With reference to the flowchart of FIG. 4, processing executed by the control device 4 b when the worker wearing the physical condition monitoring device 10 gets on the car 3 b of the elevator B 2-2 to be monitored. explain.

  First, when the worker gets on the car 3b, the car load detection device 5b detects the load amount, and a load amount detection signal indicating the detected load amount is generated and transmitted to the control device 4b. In the control device 4b, the load detection signal transmitted from the car load detection device 5b is acquired by the car worker detection unit 41a, and the worker is sent to the car 3b based on the load included in the load detection signal. Is detected ("YES" in S1).

  When it is detected that a worker is on the car 3b, the body information signal receiving unit 43b monitors whether or not a body abnormality signal is acquired from the worker's body state monitoring device 10 (S2). ). When the body abnormality signal is acquired by the body information signal receiving unit 43b (“YES” in S2), the operation control unit 44b stops the operation of the No. B elevator 2-2 (S3).

  When it is determined in step S2 that a physical abnormality signal has not been acquired from the physical condition monitoring apparatus 10 of the worker (“NO” in S3), or a physical abnormality signal is acquired and the operation of the B-unit elevator 2-2 is stopped. If this is the case, the process proceeds to step S4, and the start detection unit 42b of the control device 4b monitors whether or not a car area outside detection signal is acquired from the car upper area outside detection apparatus 6b. When it is detected that an out-of-car area detection signal has been acquired and the worker has moved out of the upper surface area of the car 3b (“YES” in S4), the operation of the elevator adjacent to the position where the worker is located is stopped. An instruction is generated and transmitted to the corresponding control device (S5). That is, when the out-of-car area detection signal is acquired because the light reception is blocked by any of the light receiving units 621b to 628b of the out-of-car area detection device 6b, the operation control unit 44b operates the elevator C 2-3. A stop instruction is generated and transmitted to the operation control unit 44c of the control device 4c of the C-unit elevator 2-3, and a detection signal outside the car area is acquired when light reception is blocked by any of the light receiving units 641b to 648b. When this is done, the operation control unit 44b generates an operation stop instruction for the No. A elevator 2-1 and transmits it to the operation control unit 44a of the control device 4a of the No. A elevator 2-1. In the elevator from which the operation stop instruction is acquired, the operation is stopped according to the instruction.

  In the above process, when it is not detected in step S1 that an operator is on the car 3b ("NO" in S1), normal operation is continued in all elevators. If there is a worker on the car 3b, but the worker's body abnormality signal is not acquired in step S2 ("NO" in S2), the operation of the own elevator is not stopped and the normal operation is continued. The If there is a worker on the car 3b but it is not detected in step S4 that the worker has started from the upper surface area of the car 3b ("NO" in S4), the operation of the adjacent elevator is not performed. Is not stopped and normal operation is continued.

  According to the first embodiment described above, inspection is performed by appropriately controlling the operation of the elevator in response to the occurrence of a physical abnormality of the worker who performs the inspection work on the car and the departure from the upper surface area of the car. It is possible to perform control so as to ensure the safety of the worker while not hindering the work.

<< Second Embodiment >>
In the elevator system 1 according to the second embodiment of the present invention, as shown in FIG. 5, it is detected that the worker has entered the car 3b of the elevator B-2 to be worked as in the first embodiment. (YES in S11), when the out-of-car area detection device 6b acquires the out-of-car area detection device 6b ("YES" in S14), the operation control unit 44b The nearest floor landing instruction for landing the elevator adjacent to the position where the worker is present on the nearest floor is generated and transmitted to the operation control unit of the corresponding elevator control device (S15). In the elevator for which the nearest floor landing instruction is acquired, the car is landed on the nearest floor according to the instruction.

  Next, when it is detected in the operation control unit 44b that the elevator car that has transmitted the nearest floor landing instruction has landed on the nearest floor, a further operation stop instruction is generated and is sent to the corresponding control device. It is transmitted (S16). In the elevator from which the operation stop instruction is acquired, the operation is stopped according to the instruction.

  According to the second embodiment described above, when an operator who performs inspection work on the car gets out of the upper surface area of the car, the operation is performed after landing the elevator car of the adjacent elevator on the nearest floor. By stopping the vehicle, it is possible to control so that the user in the elevator car of the adjacent elevator is not confined between the floors while ensuring the safety of the worker.

<< Third Embodiment >>
In the elevator system 1 according to the third embodiment of the present invention, as shown in FIG. 6, it is detected that the worker has entered the car 3b of the elevator B-2 to be worked as in the first embodiment. (YES in S21), when the out-of-car area detection device 6b acquires the out-of-car area detection device 6b in the start-up detection part 42b ("YES" in S24), the operation control part 44b first The position information of the car 3b of the elevator B, which is its own elevator, and the position information of the car of the elevator A2-1 or C elevator 2-3 adjacent to the position where the worker is present are acquired. (S25).

  Next, the direction in which the adjacent elevator car does not approach the car 3b of the No. B elevator 2-2 is determined as the moving direction by the operation control unit 44b (S26). For example, when the elevator car of the adjacent elevator is at a position higher than the car 3b, the upward direction is determined as the moving direction, and when the elevator car of the adjacent elevator is at a position lower than the car 3b, the downward direction is It is determined as the moving direction.

  Next, the nearest floor landing instruction for landing the adjacent elevator car on the nearest floor ahead in the movement direction determined in step S26 is generated, and the operation of the corresponding elevator control device is performed. It is transmitted to the control unit (S27). In the elevator from which the nearest floor landing instruction is acquired, the car is landed on the nearest floor in the determined moving direction according to the instruction.

  Next, when it is detected in the operation control unit 44b that the elevator car that has transmitted the nearest floor landing instruction has landed on the nearest floor, a further operation stop instruction is generated and is sent to the corresponding control device. It is transmitted (S28). In the elevator from which the operation stop instruction is acquired, the operation is stopped according to the instruction.

  According to the third embodiment described above, when an operator who performs inspection work on the car gets out of the upper surface area of the car, work is performed when landing the elevator car of the adjacent elevator on the nearest floor. By moving in a direction that does not contact the worker, the safety of the worker can be reliably ensured.

<< 4th Embodiment >>
<Configuration of Elevator System According to Fourth Embodiment>
The configuration of the elevator system 1D using the elevator control device according to the fourth embodiment of the present invention is the same as that of the first embodiment except that the body condition monitoring device 10D includes a safety ensuring information acquisition unit 14 as shown in FIG. Since it is the same as the structure of the elevator system 1, detailed description of the part which has the same function is abbreviate | omitted.

  The safety ensuring information acquisition unit 14 of the physical condition monitoring device 10D is input by the operator's button operation or the like after the operation of the adjacent elevator is stopped due to the worker getting out of the upper surface area of the car. Acquire information indicating that the safety of workers has been secured. The signal transmitting unit 13 generates a safety ensuring notification signal when the safety ensuring information acquiring unit 14 acquires information indicating that the safety of the worker is ensured, and the nearest control device 4a, 4b. Or to 4c.

  The body information signal receiving units 43a, 43b, and 43c of the control devices 4a, 4b, and 4c receive the safety ensuring notification signal transmitted from the body state monitoring device 10. When each of the operation control units 44a, 44b, and 44c stops the operation of the adjacent elevator due to the worker getting out of the upper surface area of the own elevator, the safety information notification signal is received by the physical information signal receiving unit. Then, an operation resumption instruction for resuming operation of the stopped elevator is generated and transmitted to the corresponding control device.

<Operation of Elevator System According to Fourth Embodiment>
In the elevator system 1D according to the present embodiment, as shown in FIG. 8, the same processing (S31 to S35) as steps S1 to S5 described in the first embodiment is executed, and the car 3b of the elevator B of No. B-2 When the safety of the worker is ensured after the operation of the adjacent elevator is stopped due to the worker on the vehicle getting out of the upper surface area of the car 3b, the worker is wearing the body condition monitoring device An operation for inputting information indicating that safety can be secured in 10D is performed. When an operation for inputting information indicating that the safety of the worker is ensured is performed, information on the operation is acquired by the safety ensuring information acquisition unit 14, and a safety notification signal is generated by the signal transmission unit 13. To 4b.

  In the control device 4b, after stopping the operation of the adjacent elevator in step S35, it is monitored whether or not a safety ensuring notification signal is transmitted from the body condition monitoring device 10D ("NO" in S31). Then, when a safety ensuring notification signal is transmitted from the body condition monitoring device 10D, it is acquired by the body information signal receiving unit 43b (“YES” in S36), and based on this, the operation control unit 44b stops the operation of the elevator. An operation resumption instruction for resuming the operation is generated and transmitted to the corresponding control device (S37). In the elevator for which the operation resumption instruction is acquired, the operation is resumed according to the instruction.

  According to the fourth embodiment described above, the operation for ensuring the safety of the worker after the worker who performs the inspection work on the car has stopped driving the adjacent elevator due to the departure from the upper surface area of the car. When the operation is performed, it is possible to reduce the convenience of the user as much as possible by resuming the normal operation of the elevator based on the operation.

<< 5th Embodiment >>
In the elevator system 1 according to the fifth embodiment of the present invention, as shown in FIG. 9, the same processes (S41 to S45) as steps S1 to S5 described in the first embodiment are executed, and the operation control of the control device 4b is performed. When the operation of the adjacent elevator is stopped by the operator 44b from the upper surface area of the car 3b by the worker on the car 3b of the B-unit elevator 2-2 by the unit 44b, the control center 4b Information notifying that the operation of the adjacent elevator has been stopped is transmitted to the system of the external engine (S46). In the external monitoring center or the like, when the notification information transmitted from the control device 4b of the elevator B 2-2 of the elevator system 1 indicating that the operation of the adjacent elevator is stopped is acquired, the monitoring of the monitoring center is performed. An employee can go to check the elevator inspection status of the corresponding building, or provide information about the stop to the users in the stopped elevator via an interphone or the like.

  According to the fifth embodiment described above, when an operator who performs inspection work on the car stops from the upper surface area of the car and stops the operation of the adjacent elevator, By notifying the engine, it is possible to perform processing related to resumption of operation and report the situation to the users in the elevator car that has stopped, ensuring the safety of workers and the convenience of users. Can do.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

  DESCRIPTION OF SYMBOLS 1,1D ... Elevator system, 2-1, 2-2, 2-3 ... Elevator, 3a, 3b, 3c ... Ride car, 4a, 4b, 4c ... Control apparatus, 5a, 5b, 5c ... Car top load detection apparatus , 6a, 6b, 6c ... Out-of-car area detection device, 10, 10D ... Physical condition monitoring device, 11 ... Physical information acquisition unit, 12 ... Physical abnormality determination unit, 13 ... Signal transmission unit, 14 ... Safety ensuring information acquisition unit 41a, 41b, 41c ... on-car worker detection unit, 42a, 42b, 42c ... start-up detection unit, 43a, 43b, 43c ... physical information signal reception unit, 44a, 44b, 44c ... operation control unit, 61b, 62b, 63b, 64b ... struts, 611b-618b, 631b-638b ... light projecting unit, 621b-628b, 641b-648b ... light receiving unit

According to an embodiment for achieving the above object, an elevator system includes: an elevator control device installed in each of a plurality of elevators installed adjacent to each other in a building and connected to each other; A body condition monitoring device attached to a worker who performs. The physical condition monitoring device generates and transmits a physical abnormality signal when it is determined that there is an abnormality in the physical condition of the worker. Each of the elevator control devices detects that there is a worker on the elevator car and receives an abnormality signal, and stops the operation of the elevator so that the worker can start from the upper surface area of the elevator car. When it is detected that the vehicle has started, the elevator car adjacent to the elevator is landed on the nearest floor, and then the operation of the adjacent elevator is stopped.

Claims (8)

A plurality of elevators installed adjacent to each other in the building and connected to each other, and a body condition monitoring device attached to a worker who performs inspection work in any of the plurality of elevators,
The physical condition monitoring device is
When it is determined that there is an abnormality in the physical condition of the worker, a signal transmission unit that generates and transmits a physical abnormality signal,
Each of the elevators is
An on-car worker detection unit that detects a worker on the elevator car;
A start-up detection unit for detecting that a worker has started from the upper surface area of the elevator car of the own elevator;
A physical information signal receiving unit for receiving a physical abnormality signal transmitted from the physical condition monitoring device;
When the worker detection unit on the car detects that there is a worker on the elevator car, and when a physical abnormality signal is received by the physical information signal reception unit, the operation of the own elevator is stopped,
When it is detected that the worker is on the elevator car by the worker detection unit on the car, and when it is detected that the worker has started from the upper surface area of the car by the start detection unit, An elevator system comprising: an operation control unit that stops operation of an adjacent elevator. When the operation information indicating that the safety of the worker is ensured is input, the signal transmission unit of the physical condition monitoring device generates and transmits a safety ensuring notification signal,
The operation control unit of the elevator, after stopping the operation of the adjacent elevator, acquires the safety ensuring notification signal transmitted from the signal transmission unit of the body condition monitoring device, and restarts the operation of the stopped elevator The elevator system according to claim 1. Connected to a physical condition monitoring device that is attached to a worker who performs an inspection work on the elevator car and determines whether or not there is an abnormality in the physical condition of the worker,
An elevator control device comprising: an operation control unit that stops the operation of the elevator when the physical condition monitoring device determines that the physical condition of the worker is abnormal. With respect to a plurality of elevators installed adjacent to each other in the building and connected to each other,
A start-up detection unit that detects that an operator who performs an inspection work on the elevator car has started from the upper surface area of the car;
An elevator control device, comprising: an operation control unit that stops the operation of an adjacent elevator when it is detected by the start detection unit that an operator has started from the upper surface area of the car. A plurality of the start-up detection units are installed corresponding to each of a plurality of adjacent elevators,
The operation control unit is configured to stop the operation of an elevator corresponding to the corresponding start-up detection unit when any of the start-up detection units detects that an operator has started from the upper surface area of the car. The elevator control device according to claim 4. The operation control unit, when it is detected by the start-up detection unit that a worker has started from the upper surface area of the car, after landing the elevator car of the adjacent elevator on the nearest floor, The elevator control device according to claim 4 or 5, wherein the operation of the elevator is stopped. The operation control unit, when the start detection unit detects that an operator has started from the upper surface area of the car, the operation control unit moves the adjacent elevator car in the direction not approaching the elevator car. The elevator control device according to any one of claims 4 to 6, wherein the elevator is stopped after the landing on the floor. The said operation control part will transmit the alerting | reporting information which shows having stopped the driving | operation of the said adjacent elevator to an external system, if the driving | operation of the said adjacent elevator is stopped. The elevator control device according to claim 1.

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