WO2018154755A1

WO2018154755A1 - Elevator malfunction monitoring apparatus, elevator, and elevator group management apparatus

Info

Publication number: WO2018154755A1
Application number: PCT/JP2017/007351
Authority: WO
Inventors: 雅之佐藤
Original assignee: 三菱電機株式会社
Priority date: 2017-02-27
Filing date: 2017-02-27
Publication date: 2018-08-30
Also published as: CN110312670B; CN110312670A; JP6673523B2; JPWO2018154755A1

Abstract

Provided is an elevator malfunction monitoring apparatus with which deterioration of components can be retarded. This elevator malfunction monitoring apparatus (2) comprises: an acquisition unit (8) which acquires observation results showing the conditions of components of an elevator (1); and a load adjusting unit (11) which sends, to the control unit (4) of the elevator (1), an instruction for reducing the loads on the components of the elevator (1) on the basis of the observation results acquired by the acquisition unit (8). The acquisition unit (8) acquires, as the observation results, the amount of elongation of a main rope that hangs a car (3) and a counterweight through a hoist machine.

Description

Elevator failure monitoring device, elevator and elevator group management device

The present invention relates to an elevator failure monitoring device, an elevator, and an elevator group management device.

For example, the following Patent Document 1 describes a diagnosis method for an elevator main rope. In the diagnosis method, failure prediction is performed by estimating the extension amount of the main rope.

Japanese Unexamined Patent Publication No. 2016-60550

The technique described in Patent Document 1 does not control the elevator based on the result of failure prediction. For this reason, deterioration of the main rope cannot be delayed.

The present invention has been made to solve the above problems. An object of the present invention is to provide an elevator failure monitoring apparatus, an elevator, and an elevator group management apparatus that can delay the deterioration of components.

An elevator failure monitoring apparatus according to the present invention is an acquisition unit that acquires an observation result indicating a state of an elevator component, and based on the observation result acquired by the acquisition unit, for reducing the load on the elevator component A load adjusting unit that transmits a command to the control unit of the elevator.

An elevator according to the present invention includes the above-described elevator failure monitoring device and a control unit that controls the hoisting machine based on a command received from the load adjustment unit. The acquisition unit acquires the amount of extension of the main rope that suspends the car and the counterweight through the hoist as an observation result.

The elevator failure monitoring apparatus according to the present invention includes an acquisition unit that acquires an observation result indicating a state of an elevator component having a plurality of cars, and a load applied to the elevator component based on the observation result acquired by the acquisition unit. A load adjusting unit that transmits a command for reducing the load to the group management control unit of the elevator.

The elevator group management apparatus according to the present invention includes the above-described elevator failure monitoring apparatus and a group management control unit that controls allocation of a plurality of cars to a call based on a command received from the load adjustment unit. The acquisition unit acquires, as an observation result, the extension amount of the main rope that suspends the car and the counterweight through the hoist for each car.

In the present invention, the load adjustment unit transmits a command for reducing the load applied to the elevator parts to the control unit of the elevator. For this reason, according to this invention, deterioration of components can be delayed.

1 is a functional block diagram of an elevator failure monitoring system in Embodiment 1. FIG. 4 is a flowchart illustrating an operation example of the elevator failure monitoring system according to the first embodiment. 3 is a flowchart illustrating an operation example of a car monitoring unit according to the first embodiment. 6 is a functional block diagram of an elevator failure monitoring system according to Embodiment 2. FIG. FIG. 9 is a functional block diagram of an elevator failure monitoring system in a third embodiment. 10 is a flowchart illustrating an operation example of a car monitoring unit according to the third embodiment. 10 is a flowchart illustrating an operation example of the elevator failure monitoring system according to the third embodiment. FIG. 10 is a functional block diagram of an elevator failure monitoring system in a fourth embodiment. It is a hardware block diagram of a failure monitoring apparatus.

The elevator failure monitoring system will be described in detail with reference to the attached drawings. In each figure, the same or corresponding parts are denoted by the same reference numerals. The overlapping description will be simplified or omitted as appropriate.

Embodiment 1 FIG.
FIG. 1 is a functional block diagram of the elevator failure monitoring system according to the first embodiment.

As shown in FIG. 1, the elevator failure monitoring system includes an elevator 1 and a failure monitoring device 2. The failure monitoring device 2 is provided outside the elevator 1. The failure monitoring device 2 is provided, for example, in a building different from the building where the elevator 1 is installed. The failure monitoring device 2 has a function of communicating with the elevator 1 via a network, for example. The failure monitoring device 2 may communicate with a plurality of individual elevators 1, for example.

As shown in FIG. 1, the elevator 1 includes a car 3, a control unit 4, a notification unit 5, a car monitoring unit 6, and an observation unit 7. The notification unit 5 is provided in the car 3, for example.

As shown in FIG. 1, the failure monitoring apparatus 2 includes an acquisition unit 8, an observation value registration unit 9, a threshold value registration unit 10, a load adjustment unit 11, and a database 12. The database 12 stores an observation result table 13 and a load adjustment table 14. The load adjustment unit 11 includes a capacity determination unit 15 and an acceleration determination unit 16.

The main rope of the elevator 1 suspends the car 3 and the counterweight through a hoisting machine. The car 3 and the counterweight move up and down when the hoisting machine is driven.

The control unit 4 controls the movement of the car 3 by controlling the hoisting machine. That is, the control unit 4 performs the raising / lowering control of the car 3. For example, the control unit 4 controls the acceleration of the car 3 by sending a torque command to the hoisting machine. For example, the control unit 4 controls the hoist so that the acceleration of the car 3 does not exceed a preset maximum acceleration.

The notification unit 5 notifies the car 3 of information. The notification unit 5 displays visual information on, for example, a monitor or an indicator in the car 3. The visual information is, for example, characters and images. For example, the notification unit 5 may broadcast audio information from a speaker or an interphone in the car 3.

The notification unit 5 notifies the car 3 of the current passenger capacity of the elevator 1, for example. For example, the notification unit 5 displays the number of people indicating the current boarding capacity on a monitor or the like in the car 3. The notification of the boarding capacity may be performed at all times, for example. The notification of the boarding capacity may be performed, for example, at a preset timing.

The car monitoring unit 6 monitors the load applied to the car 3. The car monitoring unit 6 detects, for example, the number of passengers in the car 3. The car monitoring unit 6 determines, for example, whether or not the number of people in the car 3 exceeds the boarding capacity. This determination is performed, for example, when the car 3 is stopped.

As a method of detecting the number of passengers by the car monitoring unit 6, for example, a method of identifying a person using an image photographed by a camera provided in the car 3 is used. As a method of detecting the number of passengers by the car monitoring unit 6, for example, a method of estimating the number of persons by dividing the weight in the car 3 by a constant weight may be used.

The car monitoring unit 6 sounds a warning sound in the car 3, for example, when the number of people in the car 3 exceeds the passenger capacity. As a result, the elevator 1 informs the passengers in the car 3 that the number of passengers has exceeded the passenger capacity. When the car monitoring unit 6 determines that the number of people in the car 3 exceeds the passenger capacity, for example, the control unit 4 does not start the movement of the car 3.

The observation unit 7 observes the state of parts of the elevator 1 when the elevator 1 is in operation. The observation unit 7 observes the amount of extension of the main rope from when the elevator 1 is installed, for example. The observation of the extension amount of the main rope is performed based on, for example, an error between the reference position of the stop position of the car 3 and the actual stop position of the car 3. The observation unit 7 transmits, for example, the observed elongation amount to the failure monitoring apparatus 2 together with the current time. The unit of elongation is, for example, millimeter.

The acquisition unit 8 acquires the observation result indicating the state of the parts of the elevator 1. For example, the acquisition unit 8 acquires the extension amount and time of the main rope transmitted from the observation unit 7 as observation results.

The observation value registration unit 9 records the observation result acquired by the acquisition unit 8 in the observation result table 13.

The observation value registration unit 9 records, for example, the amount of extension of the main rope in the observation result table 13. The observation value registration unit 9 records, for example, the time transmitted from the observation unit 7 together with the extension amount of the main rope in the observation result table 13 as the observation time of the extension amount. In the observation result table 13, for example, the amount of elongation and the observation time are recorded in a state of being associated with each other. In the observation result table 13, for example, a plurality of observation results with different observation times can be recorded.

The threshold value registration unit 10 records information in the load adjustment table 14. The threshold value registration unit 10 records, for example, information input by an operator or the like using an operation unit (not shown) in the load adjustment table 14.

The threshold value registration unit 10 records, for example, the threshold value of the main rope elongation, the passenger capacity of the elevator 1 and the maximum acceleration of the elevator 1 in the load adjustment table 14. In the load adjustment table 14, for example, a threshold value, a boarding capacity, and a maximum acceleration are recorded in association with each other. The unit of the threshold is, for example, millimeter. The boarding capacity recorded in the load adjustment table 14 is set to be smaller than the normal boarding capacity of the elevator 1, for example. For example, the maximum acceleration recorded in the load adjustment table 14 is set to an acceleration smaller than the normal maximum acceleration of the elevator 1.

The load adjustment unit 11 transmits to the elevator 1 a command for reducing the load applied to the components of the elevator 1 based on the contents of the observation result table 13 and the load adjustment table 14. The load adjustment unit 11 transmits a command to the control unit 4, the notification unit 5, and the car monitoring unit 6, for example.

The load adjustment unit 11 compares, for example, the extension amount of the main rope recorded in the observation result table 13 and the threshold value recorded in the load adjustment table 14. When a plurality of observation results are recorded in the observation result table 13, the load adjustment unit 11 compares each extension amount with a threshold value in order of the observation time, for example. For example, when at least one extension amount exceeds the threshold value, the load adjustment unit 11 passes the threshold value to the capacity determination unit 15 and the acceleration determination unit 16. The load adjustment unit 11 does not pass the threshold values to the capacity determination unit 15 and the acceleration determination unit 16 when, for example, any of the elongation amounts does not exceed the threshold value.

The capacity determination unit 15 reads, for example, the boarding capacity corresponding to the received threshold value from the load adjustment table 14. The capacity determination unit 15 transmits, for example, a capacity command indicating the read boarding capacity to the notification unit 5 and the car monitoring unit 6.

The acceleration determination unit 16 reads, for example, the maximum acceleration corresponding to the received threshold value from the load adjustment table 14. For example, the acceleration determination unit 16 transmits an acceleration command indicating the read maximum acceleration to the control unit 4.

When a capacity command is transmitted from the capacity determination unit 15, the elevator 1 treats the number of persons indicated by the capacity command as the current boarding capacity. That is, the boarding capacity of the elevator 1 is changed by the capacity command. In this case, the notification unit 5 notifies the car 3 of the current passenger capacity based on the capacity command. For example, when the capacity display is always performed in the car 3, the notification unit 5 changes the content of the capacity display to the number indicated by the capacity instruction. The car monitoring unit 6 determines whether or not the number of people in the car 3 exceeds the current boarding capacity based on the capacity command.

The car monitoring unit 6 sounds a warning sound in the car 3 when the number of people in the car 3 exceeds the current boarding capacity based on the capacity command. If the car monitoring unit 6 determines that the number of people in the car 3 exceeds the current boarding capacity based on the capacity command, for example, the control unit 4 does not start the movement of the car 3.

When an acceleration command is transmitted from the acceleration determining unit 16, the elevator 1 treats the acceleration indicated by the acceleration command as the current maximum acceleration. That is, the maximum acceleration of the elevator 1 is changed by the acceleration command. In this case, the control unit 4 controls the hoisting machine so that the acceleration of the car 3 does not exceed the current maximum acceleration based on the acceleration command.

FIG. 2 is a flowchart showing an operation example of the elevator failure monitoring system according to the first embodiment.

The elevator 1 observes the extension amount of the main rope (step S101). The elevator 1 transmits the elongation amount and the observation time to the failure monitoring device 2 (step S102). For example, when the extension amount “1.6 mm” is observed at “11:59”, the observation result is recorded as in the observation result table 13 shown in FIG.

The failure monitoring device 2 determines whether or not the amount of elongation exceeds a threshold value (step S103). If the elongation amount does not exceed the threshold value, the process is repeated from step S101.

When it is determined in step S103 that the amount of elongation exceeds the threshold, the failure monitoring device 2 transmits the boarding capacity corresponding to the threshold to the elevator 1 (step S104). In this case, the failure monitoring device 2 transmits the maximum acceleration corresponding to the threshold value to the elevator 1 (step S105). According to the example shown in FIG. 1, since the extension amount “1.6 mm” exceeds the threshold value “1.5 mm”, the failure monitoring apparatus 2 sets the boarding capacity “10 people” and the maximum acceleration “5 m / min” to the elevator 1. Send to.

The elevator 1 changes the capacity display in the car 3 based on the received boarding capacity (step S106). According to the example shown in FIG. 1, the elevator 1 changes the capacity display to “10 people”.

The elevator 1 controls the acceleration of the car 3 so as to be within the received maximum acceleration (step S107). According to the example shown in FIG. 1, the elevator 1 controls the acceleration of the car 3 within “5 m / min”.

FIG. 3 is a flowchart showing an operation example of the car monitoring unit in the first embodiment.

The car monitoring unit 6 detects the number of passengers in the car 3 (step S201). The car monitoring unit 6 determines whether or not the number of passengers exceeds the boarding capacity (step S202). If it is determined in step S202 that the number of passengers does not exceed the boarding capacity, processing in step S201 is performed.

If it is determined in step S202 that the number of passengers has exceeded the passenger capacity, the car monitoring unit 6 sounds a warning sound in the car 3 (step S203). According to the example shown in FIG. 1, the car monitoring unit 6 sounds a warning sound when the number of persons in the car 3 is 11 or more. After step S203, the process of step S201 is performed.

In Embodiment 1, the acquisition unit 8 acquires an observation result indicating the state of parts of the elevator 1. Based on the observation result acquired by the acquisition unit 8, the load adjustment unit 11 transmits a command for reducing the load applied to the components of the elevator 1 to the control unit 4 of the elevator 1. That is, the failure monitoring device 2 provided outside the elevator 1 performs failure monitoring and control of the elevator 1. For this reason, according to Embodiment 1, deterioration of the components of an elevator can be delayed. As a result, it is possible to extend the time until the elevator is repaired.

In Embodiment 1, the acquisition unit 8 acquires, as an observation result, the extension amount of the main rope that suspends the car 3 and the counterweight through the hoisting machine. The control unit 4 controls the hoisting machine based on the command received from the load adjustment unit 11. For this reason, according to Embodiment 1, deterioration of the main rope of an elevator can be delayed.

In the first embodiment, the load adjusting unit 11 controls the car monitoring unit 6 and controls the capacity command indicating the number of passengers smaller than the normal boarding capacity of the elevator 1 based on the amount of extension of the main rope acquired by the acquiring unit 8. Send to part 4. The car monitoring unit 6 determines whether or not the number of people in the car 3 exceeds the current boarding capacity based on the capacity command. For this reason, according to Embodiment 1, degradation of the main rope of an elevator can be delayed by restricting a boarding capacity.

In Embodiment 1, the load adjustment unit 11 transmits a capacity instruction to the notification unit 5. The notification unit 5 notifies the car 3 of information indicating the current boarding capacity based on the capacity command. For this reason, according to Embodiment 1, it can be told to the passenger in a car that boarding capacity was changed.

In the first embodiment, the load adjustment unit 11 transmits an acceleration command indicating an acceleration smaller than the normal maximum acceleration of the elevator 1 to the control unit 4 based on the extension amount of the main rope acquired by the acquisition unit 8. . The control unit 4 controls the hoist so that the acceleration of the car 3 does not exceed the current maximum acceleration based on the acceleration command. For this reason, according to Embodiment 1, the deterioration of the main rope of the elevator can be delayed by limiting the acceleration of the car.

Embodiment 2. FIG.
Hereinafter, an elevator failure monitoring system will be described focusing on differences from the first embodiment. Parts that are the same as or equivalent to those in the first embodiment are given the same reference numerals, and a part of the description is omitted.

FIG. 4 is a functional block diagram of the elevator failure monitoring system according to the second embodiment.

As shown in FIG. 4, in the second embodiment, the elevator 1 includes a failure monitoring device 2. That is, the failure monitoring device 2 is included in the elevator 1. Thereby, the network line etc. to the exterior of an elevator become unnecessary. For this reason, according to the second embodiment, the same effect as in the first embodiment can be obtained with a simple configuration.

Embodiment 3 FIG.
Hereinafter, an elevator failure monitoring system will be described focusing on differences from the first embodiment. Parts that are the same as or equivalent to those in the first embodiment are given the same reference numerals, and a part of the description is omitted.

FIG. 5 is a functional block diagram of the elevator failure monitoring system according to the third embodiment.

As shown in FIG. 5, the elevator failure monitoring system includes an elevator 1, a failure monitoring device 2, and a group management device 17. The failure monitoring device 2 is provided outside the elevator 1. The failure monitoring device 2 is provided, for example, in a building different from the building where the elevator 1 is installed. The group management device 17 is provided, for example, in a building where the elevator 1 is installed. The failure monitoring device 2 has a function of communicating with the elevator 1 and the group management device 17 via, for example, a network.

In the third embodiment, the elevator 1 has a plurality of cars 3. FIG. 5 illustrates an elevator 1 having a first car 3a and a second car 3b.

As shown in FIG. 5, the group management device 17 includes a group management control unit 18 and a database 19. The database 19 stores a load status table 20. The load adjustment unit 11 includes an assigned number adjustment unit 21 and an assigned number adjustment unit 22.

The group management control unit 18 performs group management of the plurality of cars 3. The group management control unit 18 determines, for example, which of the first car 3a and the second car 3b is to respond to a call. That is, the group management control unit 18 controls allocation of the plurality of cars 3 to the call.

In the load status table 20, for example, the cumulative number of passengers and the cumulative number of responses for each car 3 are recorded. In the load status table 20, for example, the car name, the cumulative number of passengers, and the cumulative response count are recorded in association with each other.

The car monitoring unit 6 monitors the load applied to the plurality of cars 3. The car monitoring unit 6 detects, for example, the number of passengers in each car 3. For example, when a call is generated, the car monitoring unit 6 increases the cumulative number of passengers in the car 3 in the load status table 20 by the number of passengers in the car 3 that has responded to the call. For example, when a call is generated, the car monitoring unit 6 increases the cumulative response count of the car 3 responding to the call in the load status table 20 by one.

The observation unit 7 observes, for example, the amount of extension of the main rope since the elevator 1 is installed for each car 3.

The acquisition unit 8 acquires, for example, the extension amount and observation time of the main rope for each car 3 transmitted from the observation unit 7 as the observation result for each car 3.

The observation value registration unit 9 records the observation result for each car 3 acquired by the acquisition unit 8 in the observation result table 13. In the observation result table 13, for example, a car name, an extension amount, and an observation time are recorded in association with each other.

The threshold value registration unit 10 records, for example, a threshold value of the amount of extension of the main rope, the number of people adjustment coefficient and the number of times adjustment coefficient in the load adjustment table 14. The number of people adjustment coefficient is a coefficient for adjusting the number of people carried by each car 3. The frequency adjustment coefficient is a coefficient for adjusting the number of times each car 3 answers a call. For example, the threshold value, the number of people adjustment coefficient, and the number of times adjustment coefficient are recorded in the load adjustment table 14 in association with each other. The unit of the threshold is, for example, millimeter. The unit of the number adjustment coefficient and the number adjustment coefficient is, for example, percentage. The number of people adjustment coefficient and the number of times adjustment coefficient are set to a value larger than 0 and smaller than 100, for example.

The load adjustment unit 11 transmits a command for reducing the load applied to the components of the elevator 1 to the group management device 17 based on the contents of the observation result table 13 and the load adjustment table 14. For example, the load adjustment unit 11 transmits a command to the group management control unit 18.

The load adjustment unit 11 compares, for example, the extension amount of the main rope recorded in the observation result table 13 and the threshold value recorded in the load adjustment table 14. When a plurality of observation results are recorded in the observation result table 13, the load adjustment unit 11 compares each extension amount with a threshold value in order of the observation time, for example. For example, when there is an extension amount exceeding the threshold value, the load adjustment unit 11 passes the car name and the threshold value associated with the extension amount to the assigned number adjustment unit 21 and the assigned number adjustment unit 22. For example, when there is no amount of growth exceeding the threshold, the load adjustment unit 11 does not pass the car name and the threshold to the assigned number adjustment unit 21 and the assigned number adjustment unit 22.

The allocated number adjustment unit 21 reads, for example, the number adjustment coefficient corresponding to the received threshold value from the load adjustment table 14. For example, the allocated number adjustment unit 21 transmits the received car name and the read number adjustment coefficient to the group management control unit 18.

The allocation number adjustment unit 22 reads, for example, the frequency adjustment coefficient corresponding to the received threshold value from the load adjustment table 14. For example, the allocation number adjustment unit 22 transmits the received car name and the read number adjustment coefficient to the group management control unit 18.

The group management control unit 18 receives, for example, a car name from which the extension amount of the main rope has exceeded a threshold value from the load adjustment unit 11. For example, the group management control unit 18 reads the cumulative number of passengers and the cumulative number of responses of all the cars 3 from the load status table 20 for each car 3. The group management control unit 18 determines the car 3 that responds to a call based on, for example, the cumulative number of passengers in each car 3, the cumulative number of responses of each car 3, the number of people adjustment coefficient, and the number of times adjustment coefficient.

The group management control unit 18 determines whether or not both the first condition and the second condition are satisfied, for example. The first condition is expressed by, for example, the following formula (1). The second condition is expressed by, for example, the following formula (2).

(Accumulated number of passengers in a car whose growth exceeds the threshold) <(Accumulated number of cars in the car whose growth does not exceed the threshold) x (Number of people adjustment factor) / 100 (1)

（(Number of cumulative responses of the car whose elongation exceeds the threshold) <(Number of cumulative responses of the car whose elongation does not exceed the threshold) × (Number of times adjustment factor) / 100 (2)

For example, when at least one of the first condition and the second condition is not satisfied, the group management control unit 18 moves the car 3 whose main rope elongation does not exceed the threshold to the floor where the call is generated. For example, when both the first condition and the second condition are satisfied, the group management control unit 18 moves the car 3 whose main rope has exceeded the threshold to the floor where the call is generated.

FIG. 6 is a flowchart showing an operation example of the car monitoring unit according to the third embodiment.

The car monitoring unit 6 determines whether or not a call has occurred (step S301). If no call has occurred, the process of step S301 is repeated.

If it is determined in step S301 that a call has occurred, the car monitoring unit 6 detects the number of people who have boarded the car 3 (step S302). The car monitoring unit 6 increases the cumulative number of passengers in the car 3 by the number of passengers who have boarded this time (step S303). The car monitoring unit 6 increases the cumulative response count of the car 3 by one. For example, when five passengers get on the second car 3b shown in FIG. 5, the car monitoring unit 6 updates the cumulative number of passengers in the second car 3b to “15 people” and the cumulative response of the second car 3b. The number of times is updated to “3 times”. After step S303, the process of step S301 is performed.

FIG. 7 is a flowchart showing an operation example of the elevator failure monitoring system according to the third embodiment.

The elevator 1 observes the extension amount of the main rope for each car 3 (step S401). The elevator 1 transmits the extension amount and the observation time to the failure monitoring device 2 (step S402). For example, when an extension “1.6 mm” is observed at “11:59” for the first car 3a, the observation result is recorded as in the observation result table 13 shown in FIG.

The failure monitoring device 2 determines whether or not there is an elongation amount exceeding the threshold (step S403). If there is no elongation exceeding the threshold, the process is repeated from step S401.

If it is determined in step S403 that there is an extension amount exceeding the threshold value, the failure monitoring apparatus 2 transmits to the group management device 17 the name of the car whose extension amount exceeds the threshold value and the number of people adjustment coefficient corresponding to the threshold value ( Step S404). According to the example shown in FIG. 5, since the extension amount “1.6 mm” exceeds the threshold value “1.5 mm”, the failure monitoring apparatus 2 sets the car name “first car 3 a” and the number of people adjustment coefficient “40%”. It transmits to the group management apparatus 17. Moreover, the failure monitoring apparatus 2 transmits the car name whose elongation amount exceeds the threshold and the number of times adjustment coefficient corresponding to the threshold to the group management apparatus 17 (step S405). According to the example shown in FIG. 5, since the extension amount “1.6 mm” exceeds the threshold value “1.5 mm”, the failure monitoring apparatus 2 sets the car name “first car 3 a” and the frequency adjustment coefficient “40%”. It transmits to the group management apparatus 17.

The group management device 17 determines whether a call has occurred (step S406). If no call has occurred, the process of step S406 is repeated.

If it is determined in step S406 that a call has occurred, the group management apparatus 17 determines whether both the first condition and the second condition are satisfied (step S407). If it is determined in step S407 that both the first condition and the second condition are not satisfied, the group management device 17 makes the car 3 whose elongation amount does not exceed the threshold value respond to the call (step S408). . When it is determined in step S407 that both the first condition and the second condition are satisfied, the group management apparatus 17 makes the car 3 whose elongation amount exceeds the threshold value respond to the call (step S409).

According to the example shown in FIG. 5, the cumulative number of passengers “5 people” in the first car 3 a whose elongation amount exceeds the threshold value is “10 people” in the second car 3 b whose elongation amount does not exceed the threshold value. More than "40%". Further, the cumulative response number “1 time” of the first car 3a whose elongation amount has exceeded the threshold value is “40%” of the cumulative response number “2 times” of the second car 3b whose elongation amount has not exceeded the threshold value. Many. In this case, since neither the first condition nor the second condition is satisfied, the second car 3b answers the call. On the other hand, for example, in the state where the cumulative number of passengers in the second car 3b is updated to “15” and the cumulative number of responses of the second car 3b is updated to “3”, the first condition and the second condition Both are satisfied. In this case, the first car 3a answers the call.

Thus, according to the third embodiment, when the load is not excessively biased to the car 3 whose elongation amount does not exceed the threshold value, the car 3 whose elongation amount exceeds the threshold value is not used. On the other hand, when the load is excessively biased to the car 3 whose elongation amount does not exceed the threshold value, the car 3 whose elongation amount exceeds the threshold value is used.

In Embodiment 3, the acquisition unit 8 acquires an observation result indicating the state of the parts of the elevator 1 having a plurality of cars 3. Based on the observation result acquired by the acquisition unit 8, the load adjustment unit 11 transmits a command for reducing the load applied to the components of the elevator 1 to the group management control unit 18 of the elevator 1. For this reason, according to Embodiment 3, deterioration of the components of the elevator which has a some cage | basket | car can be delayed. As a result, it is possible to extend the time until the elevator is repaired.

In Embodiment 3, the acquisition unit 8 acquires, as an observation result, the extension amount of the main rope that suspends the car 3 and the counterweight via the hoist for each car 3. The group management control unit 18 controls the allocation of the plurality of cars 3 to the call based on the command received from the load adjustment unit 11. For this reason, according to Embodiment 3, the deterioration of the main rope corresponding to each car can be delayed.

In the third embodiment, the load adjustment unit 11 sets the number of people adjustment coefficient to the group management control unit 18 when there is a car 3 in which the extension amount of the main rope acquired by the acquisition unit 8 exceeds a preset threshold. Send to. The group management control unit 18 determines the current number of passengers in the car 3 whose main rope has exceeded the threshold, the current number of passengers in the car 3 whose main rope has not exceeded the threshold, and the number of people adjustment factor. Determine the car 3 that will answer the incoming call. For this reason, according to Embodiment 3, the deterioration of the main rope corresponding to each car can be delayed by adjusting the number of passengers among a plurality of cars.

In the third embodiment, the load adjustment unit 11 sets the number adjustment coefficient to the group management control unit 18 when there is a car 3 in which the extension amount of the main rope acquired by the acquisition unit 8 exceeds a preset threshold. Send to. The group management control unit 18 determines the current response based on the cumulative response count of the car 3 whose main rope elongation exceeds the threshold, the cumulative response count of the car 3 whose main rope elongation does not exceed the threshold, and the frequency adjustment coefficient. Determine the car 3 that will answer the incoming call. For this reason, according to Embodiment 3, the deterioration of the main rope corresponding to each car can be delayed by adjusting the number of responses among a plurality of cars.

In Embodiment 3, for example, the group management control unit 18 may determine the car 3 that responds to a call based on only the first condition regardless of whether or not the second condition is satisfied. That is, for example, the group management control unit 18 causes the car 3 to respond to the call when the extension amount of the main rope does not exceed the threshold when the first condition is not satisfied, and the extension of the main rope when the first condition is satisfied. The car 3 whose amount exceeds the threshold may be answered to the call. In this case, the car 3 responding to the call is determined based on the number of passengers in each car 3 regardless of the number of responses of each car 3. For this reason, the processing load of the group management apparatus 17 can be reduced.

In Embodiment 3, for example, the group management control unit 18 may determine the car 3 that responds to a call based only on the second condition regardless of whether or not the first condition is satisfied. That is, for example, the group management control unit 18 causes the car 3 to respond to the call when the extension amount of the main rope does not exceed the threshold when the second condition is not satisfied, and extends the main rope when the second condition is satisfied. The car 3 whose amount exceeds the threshold may be answered to the call. In this case, the car 3 that answers the call is determined based on the number of responses of each car 3 regardless of the number of passengers in each car 3. For this reason, the processing load of the group management apparatus 17 can be reduced.

Embodiment 4 FIG.
Hereinafter, an elevator failure monitoring system will be described focusing on differences from the third embodiment. Portions that are the same as or equivalent to those in the third embodiment are given the same reference numerals, and some explanations are omitted.

FIG. 8 is a functional block diagram of the elevator failure monitoring system according to the fourth embodiment.

As shown in FIG. 8, in the fourth embodiment, the group management device 17 includes a failure monitoring device 2. That is, the failure monitoring device 2 is included in the group management device 17. This eliminates the need for a network line or the like from the group management device 17 to the outside. For this reason, according to the fourth embodiment, the same effects as those of the third embodiment can be obtained with a simple configuration.

FIG. 9 is a hardware configuration diagram of the failure monitoring apparatus.

Each function of the acquisition unit 8, the observation value registration unit 9, the threshold value registration unit 10, the load adjustment unit 11, and the database 12 in the failure monitoring apparatus 2 is realized by a processing circuit. The processing circuit may be dedicated hardware 50. The processing circuit may include a processor 51 and a memory 52. A part of the processing circuit is formed as dedicated hardware 50, and may further include a processor 51 and a memory 52. FIG. 9 shows an example in which the processing circuit is partly formed as dedicated hardware 50 and includes a processor 51 and a memory 52.

When at least a part of the processing circuit is at least one dedicated hardware 50, the processing circuit may be, for example, a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC, an FPGA, or the like. The combination is applicable.

When the processing circuit includes at least one processor 51 and at least one memory 52, each function of the failure monitoring apparatus 2 is realized by software, firmware, or a combination of software and firmware. Software and firmware are described as programs and stored in the memory 52. The processor 51 reads out and executes the program stored in the memory 52, thereby realizing the function of each unit. The processor 51 is also referred to as a CPU (Central Processing Unit), a central processing unit, a processing unit, an arithmetic unit, a microprocessor, a microcomputer, and a DSP. The memory 52 corresponds to, for example, a nonvolatile or volatile semiconductor memory such as a RAM, a ROM, a flash memory, an EPROM, and an EEPROM, a magnetic disk, a flexible disk, an optical disk, a compact disk, a mini disk, and a DVD.

Thus, the processing circuit can realize each function of the failure monitoring device 2 by hardware, software, firmware, or a combination thereof. Each function of the elevator 1 and the group management device 17 is also realized by a processing circuit similar to the processing circuit shown in FIG.

As described above, the present invention can be applied to an elevator failure monitoring system.

DESCRIPTION OF SYMBOLS 1 Elevator 2 Failure monitoring device 3 Car 3a 1st car 3b 2nd car 4 Control part 5 Notification part 6 Car monitoring part 7 Observation part 8 Acquisition part 9 Observation value registration part 10 Threshold registration part 11 Load adjustment part 12 Database 13 Observation result Table 14 Load adjustment table 15 Capacity determination unit 16 Acceleration determination unit 17 Group management device 18 Group management control unit 19 Database 20 Load status table 21 Number of people adjustment unit 22 Number of times adjustment unit 50 Dedicated hardware 51 Processor 52 Memory

Claims

An acquisition unit for acquiring observation results indicating the state of parts of the elevator;
Based on the observation result acquired by the acquisition unit, a load adjustment unit that transmits a command for reducing the load on the elevator parts to the control unit of the elevator,
Elevator malfunction monitoring device.
The elevator failure monitoring apparatus according to claim 1, wherein the acquisition unit acquires, as an observation result, an extension amount of a main rope that suspends a car and a counterweight through a hoisting machine.
3. The elevator according to claim 2, wherein the load adjustment unit transmits a capacity command indicating the number of passengers smaller than a normal riding capacity of the elevator to the control unit based on an extension amount of the main rope acquired by the acquisition unit. Fault monitoring device.
The said load adjustment part transmits the acceleration command which shows an acceleration smaller than the normal maximum acceleration of an elevator to the said control part based on the elongation amount of the main rope acquired by the said acquisition part. Elevator malfunction monitoring device.
The elevator failure monitoring device according to claim 1;
The control unit that controls the hoisting machine based on a command received from the load adjustment unit;
With
The said acquisition part is an elevator which acquires the extension amount of the main rope which suspends a cage | basket | car and a counterweight through the said hoisting machine as an observation result.
It has a car monitoring unit that determines whether the number of people in the car exceeds the passenger capacity,
The load adjusting unit transmits a capacity instruction indicating a smaller number of passengers than a normal passenger capacity of the elevator to the car monitoring unit and the control unit based on the amount of extension of the main rope acquired by the acquiring unit,
The car monitoring unit determines whether or not the number of people in the car exceeds the current boarding capacity based on the capacity command,
The elevator according to claim 5, wherein the control unit does not start the movement of the car when the car monitoring unit determines that the number of people in the car exceeds the current passenger capacity.
Provided with a notification unit for reporting information in the car,
The load adjustment unit transmits a capacity instruction to the notification unit,
The elevator according to claim 6, wherein the notification unit notifies the car of information indicating a current boarding capacity based on a capacity command.
The load adjustment unit transmits an acceleration command indicating an acceleration smaller than a normal maximum acceleration of the elevator to the control unit based on the extension amount of the main rope acquired by the acquisition unit,
The elevator according to any one of claims 5 to 7, wherein the control unit controls the hoisting machine so that an acceleration of the car does not exceed a current maximum acceleration based on an acceleration command.
An acquisition unit for acquiring an observation result indicating a state of an elevator part having a plurality of cars;
Based on the observation result acquired by the acquisition unit, a load adjustment unit that transmits a command for reducing the load on the elevator parts to the group management control unit of the elevator,
Elevator malfunction monitoring device.
10. The elevator failure monitoring apparatus according to claim 9, wherein the acquisition unit acquires, as an observation result, an extension amount of a main rope for suspending a car and a counterweight via a hoisting machine.
The load adjustment unit transmits a number adjustment coefficient for adjusting the number of people carried by each car to the group management control unit based on the amount of extension of the main rope acquired for each car by the acquisition unit. The elevator failure monitoring apparatus according to 10.
The load adjustment unit transmits a frequency adjustment coefficient for adjusting the number of times each car responds to a call to the group management control unit based on an extension amount of the main rope acquired for each car by the acquisition unit. The elevator failure monitoring apparatus according to claim 10 or 11.
The elevator failure monitoring device according to claim 9,
The group management control unit for controlling the allocation of a plurality of cars to a call based on a command received from the load adjustment unit;
With
The acquisition unit is an elevator group management apparatus that acquires, as an observation result, an extension amount of a main rope for suspending a car and a counterweight via a hoisting machine for each car.
It has a database that stores the cumulative number of passengers in each car,
The load adjustment unit, when there is a car in which the amount of elongation of the main rope acquired by the acquisition unit exceeds a preset threshold, the number of people adjustment coefficient for adjusting the number of people carried by each car To the group management control unit,
The group management control unit responds to the call based on the cumulative number of passengers in the car whose main rope has exceeded the threshold, the cumulative number of passengers in the car whose main rope has not exceeded the threshold, and the number of people adjustment factor. The elevator group management apparatus according to claim 13, wherein the elevator car is determined.
It has a database that stores the cumulative number of responses for each car,
The load adjusting unit adjusts the number of times each car responds to a call when there is a car whose elongation amount of the main rope acquired by the acquiring unit exceeds a preset threshold. To the group management control unit,
The group management control unit responds to the call based on the cumulative number of responses of the car whose main rope extension exceeds the threshold, the cumulative response number of the car whose main rope extension does not exceed the threshold, and the number adjustment coefficient. The elevator group management device according to claim 13 or 14, wherein a car is determined.