JP2003081550A - Device, system and method of detecting approach of adjacent elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device for detecting approach of an adjacent elevator capable of securely detecting approach of the elevator adjacent to a worker working on an elevator car. SOLUTION: This device 3 for detecting approach of an adjacent elevator contains an elevator-operated-for-maintenance recognition unit 31 for recognizing an elevator operated for maintenance, an adjacent elevator recognition unit 32 for recognizing an elevator adjacent to the elevator operated for maintenance, an approach determination unit 33 for obtaining position data of the adjacent elevator and position data of the elevator operated for maintenance to determine whether the adjacent elevator and the elevator operated for maintenance approach each other or not, and an alarm unit 34 for transmitting the alarm signal for starting an alarm device of the elevator operated for maintenance when the approach determination unit 33 determines approach.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an adjoining elevator approach detecting device for detecting approach of adjoining elevators, and more particularly to surely detecting approach of adjoining elevators for an operator working on an elevator car. The present invention relates to an adjacent elevator approach detection device that can be used.

[0002]

2. Description of the Related Art Conventionally, in a hoistway where a plurality of elevators are installed, when performing work on the car of an elevator car, the adjacent elevators are normally operated. The elevator was passing at high speed.

Therefore, the worker has secured the safety by sensing the approach of the adjacent elevator by himself or by hearing the starting sound of the elevator.

However, there is a danger that the worker concentrates on the work and forgets the existence of the adjacent elevator when the safety is paid by the worker's attention. It prevented a dangerous danger.

[0005]

However, since the working environment in the hoistway is a complicated environment, it may not always be possible to detect that a worker and an adjacent elevator are close to each other by a normal sensor. There was a problem.

The present invention has been made in view of the above circumstances, and an object of the present invention is to reliably detect the approach of an operator who works on an elevator car and an adjacent elevator, thereby paying attention to the operator. Another object of the present invention is to provide an adjacent elevator approach detection device capable of avoiding danger regardless of the work environment.

[0007]

In order to achieve the above object, an adjacent elevator approach detecting device according to a first aspect of the present invention detects the approach of adjacent elevators in a hoistway in which a plurality of elevators are installed. An adjoining elevator approach detection device for detecting, which recognizes an inspection operation elevator in an inspection operation state and recognizes an inspection operation elevator recognition means and an adjacent elevator adjacent to the inspection operation elevator recognized by this inspection operation elevator recognition means. Acquiring the adjacent elevator recognition means, the position data of the adjacent elevator and the position data of the inspection operation elevator recognized by the adjacent elevator recognition means, and whether the adjacent elevator and the inspection operation elevator are close to each other. The approach determination means for determining whether or not this approach When it is determined that the approaching state by means may comprise a warning means for transmitting a warning signal to activate the inspection operation elevator warning device.

According to the first aspect of the present invention, since it is possible to reliably detect the approach of the worker who works on the elevator car and the adjacent elevator, it is possible to reduce the alertness of the worker or the work. Even if the environment is complicated, it is possible to ensure the safety of workers.

The inspection operation elevator recognition means of the adjacent elevator approach detection device according to the invention of claim 2 is:
The inspection operation elevator is recognized by the inspection operation switch installed in each of the plurality of elevators.

According to the second aspect of the invention, the presence or absence of the inspection operation elevator is recognized by the inspection operation switch to start the operation, so that the operator does not need to operate the adjacent elevator approach detection device. This makes it possible to prevent the operator from forgetting to start.

According to another aspect of the present invention, there is provided an adjacent elevator approach detection system, wherein a plurality of elevators are provided with a warning device for notifying an operator who works on an elevator car that an adjacent elevator is approaching. It recognizes the inspection operation elevator in the inspection operation state among the plurality of elevators, recognizes the adjacent elevator adjacent to the inspection operation elevator, and determines whether or not the adjacent elevator and the inspection operation elevator are close to each other. And an adjacent elevator approach detection device that transmits a warning signal for activating the warning device of the inspection operation elevator when it is determined to be in the approaching state.

According to the third aspect of the present invention, since it is possible to reliably detect the approach of the worker who works on the elevator car and the adjacent elevator, it is possible to reduce the alertness of the worker or the work. Even if the environment is complicated, it is possible to ensure the safety of workers.

An adjacent elevator approach detecting method according to a fourth aspect of the present invention is an adjacent elevator approach detecting method for detecting approach of an adjacent elevator in a hoistway in which a plurality of elevators are installed. A warning device for notifying the approaching of the adjacent elevators to workers working above is installed in the plurality of elevators, and the inspection operation elevators in the inspection operation state are recognized in the plurality of elevators and the inspection operation is performed. Recognizing the adjacent elevator that is adjacent to the elevator,
When it is determined that the adjacent elevator and the inspection operation elevator are in an approaching state and it is determined that they are in an approaching state, a warning signal for activating the warning device of the inspection operating elevator is transmitted. And

According to the fourth aspect of the present invention, since it is possible to reliably detect the approach of the worker who works on the elevator car and the adjacent elevator, when the worker's alertness is lowered or the work is performed Even if the environment is complicated, it is possible to ensure the safety of workers.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION The configuration of an adjacent elevator approach detection system according to this embodiment will be described below with reference to FIG.

As shown in FIG. 1, the adjacent elevator approach detection system 1 of this embodiment is such that a plurality of elevators 2a, 2b, 2c installed in the same hoistway are adjacent to each other. And an adjacent elevator approach detection device 3 that detects a warning and issues a warning to a worker who is performing inspection work. However, here, the case where three elevators are installed is described as an example, but the number of elevators may be two or three.
It may be more than a machine.

Here, each elevator 2a, 2b, 2c
Then, steel tapes 6a, 6 for connecting the elevator cars 4a, 4b, 4c and the counterweights 5a, 5b, 5c.
The pulleys 7a, 7b and 7c are rotated by b and 6c, and the rotary encoders 8a, 8b and 8c output pulses in accordance with the rotation.

Then, this pulse is applied to the control devices 9a, 9
b and 9c receive and count, the amount of change in the pulse count value is calculated, and the movement amount of the elevator cars 4a, 4b, and 4c is calculated from the calculation result. Then, the control devices 9a, 9b, 9c determine the positions of the elevator cars 4a, 4b, 4c from the movement amount and provide them to the adjacent elevator approach detection device 3 as position data.

Each of the control devices 9a, 9b, 9c is provided with an inspection operation switch for switching from normal operation to inspection operation, and ON / OFF of this inspection operation switch is also provided to the adjacent elevator approach detection device 3. .

Warning devices 10a, 10b, 10c are installed on the cars of the elevator cars 4a, 4b, 4c to inform the operator that the adjacent elevators are approaching. When the adjacent elevators approach, the tail cord 11a,
Signals from the control devices 9a, 9b, 9c are received via 11b, 11c to issue a warning to the operator.

Here, the warning devices 10a, 10b, 10c
May be a display device that notifies the approach of an adjacent elevator by letters, a voice device that notifies the approach by a voice or an alarm sound, or a light emitting device such as a rotating lamp.

The adjacent elevator approach detection device 3
Is an inspection operation elevator recognition unit 31 that recognizes the inspection operation elevator in the inspection operation state, an adjacent elevator recognition unit 32 that recognizes the adjacent elevator adjacent to this inspection operation elevator, the position data of the adjacent elevator and the inspection operation elevator An approach determination unit 33 that determines whether or not the adjacent elevator and the inspection operation elevator are in the approaching state by obtaining the position data, and when the approaching determination unit 33 determines that the approaching unit is in the approaching state,
And a warning unit 34 for transmitting a warning signal for activating the warning device of the inspection operation elevator.

Next, the approach detection processing by the adjacent elevator approach detection device 3 of this embodiment will be described with reference to FIG.

As shown in FIG. 2, first, the adjacent elevator approach detection device 3 is provided with a plurality of elevators 2a, 2b, 2c.
It is determined whether or not there is an elevator whose inspection operation switch installed in the control devices 9a, 9b, 9c is ON, and the elevator which is ON is recognized as an inspection operation elevator (S201). .

If there is no inspection operation elevator, the judgment is repeated. If there is an inspection operation elevator, the adjacent elevator is recognized next (S20).
2).

For example, when the elevator 2a is in the inspection operation state, the elevator 2b is regarded as an adjacent elevator.
When the elevator 2b is in the inspection operation state, the elevators 2a and 2c are recognized as adjacent elevators.

Then, the adjacent elevator approach detection device 3
Receives position data of the elevator car 4 from each control device 9 of the inspection operation elevator and the adjacent elevator and determines the position (S203).

For example, when determining the position of the elevator 2b, the balance 5 with the elevator car 4b is used.
The pulley 7b is rotated by the steel tape 6b connecting with b, and the rotary encoder 8b outputs a pulse in accordance with this rotation. The control device 9b receives and counts this pulse, calculates the amount of change in this count value, and calculates the movement amount of the elevator car 4b from the calculation result.
The control device 9b determines the position of the elevator car 4b based on this movement amount, and provides it to the adjacent elevator approach detection device 3 as position data.

In this way, the adjacent elevator approach detection device 3 which has received the position data from the inspection operation elevator and the adjacent elevator calculates the distance between the inspection operation elevator and the adjacent elevator based on the received position data (S204). It is determined whether the inspection operation elevator and the adjacent elevator are close to each other from the distance (S205).

For example, if the adjacent elevator approach detection device 3 recognizes that the elevator car 4b is stopped on the 5th floor based on the position data received from the control device 9b, the elevator car 4a or the elevator car 4c has 5 When moving from below toward the floors above the floor, the adjacent elevator approach detection device 3 determines that it is approaching. Similarly, when the elevator car 4a or the elevator car 4c is moving from above toward the fifth floor and lower floors, the adjacent elevator approach detection device 3 determines that they are approaching. Others, elevator car 4a,
Even when 4c is stopped and the elevator car 4b is moving, the approach determination is similarly performed.

In this way, when it is determined that the adjacent elevator approach detection device 3 is approaching, a warning signal is transmitted to the inspection operation elevator (S206),
The control device 9 of the inspection operation elevator which receives this warning signal activates the warning device 10 on the car of the inspection operation elevator via the tail code 11 to issue a warning to the worker on the car (S207).

If this warning is issued or it is determined in step S205 that the adjacent elevator is not approaching, the adjacent elevator approach detection device 3 next determines whether or not the inspection operation is continuing. (S208). This determination is made based on whether or not the inspection operation switch installed in the control device 9 of the inspection operation elevator is turned on.

Then, when the inspection operation is continued, the process returns to step S203 to continue the approach detection processing of the adjacent elevator, and when the inspection operation is not continued, the operation is returned to the normal operation (S209). The approach detection process by the elevator approach detection device 3 ends.

In this way, the adjacent elevator approach detection device 3 of the present embodiment calculates the distance between the inspection operation elevator and the adjacent elevator and determines whether or not they are close to each other. The approach can be reliably detected.

Therefore, it is possible to ensure the safety of the operator even when the attention of the operator is lowered or the working environment is complicated.

Further, since the adjacent elevator approaching detection device 3 of this embodiment starts the operation by recognizing the presence or absence of the inspection operation elevator by the inspection operation switch installed in the control device 9, the worker approaches the adjacent elevators. There is no need to perform an operation to activate the detection device 3, and thus it is possible to prevent the operator from forgetting to activate the adjacent elevator approach detection device 3.

[0037]

As described above, according to the adjacent elevator approach detection device of the present invention, it is possible to reliably detect the approach between the worker who works on the elevator car and the adjacent elevator. It is possible to ensure the safety of the worker even when the attention of the worker is lowered or the work environment is complicated.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment of an adjacent elevator approach detection system according to the present invention.

FIG. 2 is a flowchart for explaining an approach detection process performed by the adjacent elevator approach detection device shown in FIG.

[Explanation of symbols]

1 Adjacent elevator approach detection system 2a, 2b, 2c elevator 3 Adjacent elevator approach detection device 4a, 4b, 4c elevator car 5a, 5b, 5c counterweight 6a, 6b, 6c Steel tape 7a, 7b, 7c Pulley 8a, 8b, 8c rotary encoder 9a, 9b, 9c control device 10a, 10b, 10c warning device 11a, 11b, 11c Tail cord 31 Inspection operation elevator recognition section 32 Adjacent elevator recognition unit 33 Approach determination unit 34 Warning section

Claims (4)

[Claims] 1. An adjoining elevator approach detection device for detecting approaching of adjacent elevators in a hoistway in which a plurality of elevators are installed, and an inspection operation elevator recognition means for recognizing an inspection operation elevator in an inspection operation state. An adjacent elevator recognition means for recognizing an adjacent elevator adjacent to the inspection operation elevator recognized by the inspection operation elevator recognition means, and position data of the adjacent elevator recognized by the adjacent elevator recognition means and the inspection operation elevator An approach determining means for determining whether or not the adjacent elevator and the inspection operation elevator are in an approaching state by acquiring position data, and when the approach determining means determines that the approaching state is in an approaching state, the inspection operation is performed. Warning signal to activate elevator warning device Adjacent elevator approach detection device which comprises a warning means for transmitting. 2. The inspection operation elevator recognition means,
The adjacent elevator approach detection device according to claim 1, wherein the inspection operation elevator is recognized by an inspection operation switch installed in each of the plurality of elevators. 3. A plurality of elevators, each of which is provided with a warning device for informing a worker who works on an elevator car that an adjacent elevator is approaching, and an inspection operation in the inspection operation state among the plurality of elevators. While recognizing the elevator, recognizing the adjacent elevator adjacent to this inspection operation elevator, when it is determined that the adjacent elevator and the inspection operation elevator are in the approaching state and it is determined that they are in the approaching state, An adjacent elevator approach detection system, comprising: an adjacent elevator approach detection device that transmits a warning signal for activating the warning device of the inspection operation elevator. 4. An adjacent elevator approach detection method for detecting approach of adjacent elevators in a hoistway in which a plurality of elevators are installed, the approach of an adjacent elevator to an operator working on an elevator car. A warning device is installed in the plurality of elevators to recognize the inspection operation elevator in the inspection operation state among the plurality of elevators, and the adjacent elevator adjacent to the inspection operation elevator is recognized. An adjacent elevator characterized by transmitting a warning signal for activating the warning device of the inspection operation elevator when it is determined whether or not the inspection operation elevator is in an approaching state Approach detection method.