CN110312670B - Elevator fault monitoring device, elevator and elevator group management device - Google Patents
Elevator fault monitoring device, elevator and elevator group management device Download PDFInfo
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- CN110312670B CN110312670B CN201780082956.2A CN201780082956A CN110312670B CN 110312670 B CN110312670 B CN 110312670B CN 201780082956 A CN201780082956 A CN 201780082956A CN 110312670 B CN110312670 B CN 110312670B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B3/00—Applications of devices for indicating or signalling operating conditions of elevators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
- B66B5/12—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions in case of rope or cable slack
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- Indicating And Signalling Devices For Elevators (AREA)
Abstract
Provided is a failure monitoring device for an elevator, which can delay the deterioration of components. The elevator fault monitoring device (2) of the invention comprises: an acquisition unit (8) that acquires an observation result showing the state of a component of the elevator (1); and a load adjustment unit (11) that transmits a command for reducing the load applied to the components of the elevator (1) to the control unit (4) of the elevator (1) on the basis of the observation result acquired by the acquisition unit (8). An acquisition unit (8) acquires, as an observation result, the elongation of a main rope suspending a car (3) and a counterweight via a hoisting machine.
Description
Technical Field
The present invention relates to an elevator fault monitoring device, an elevator, and an elevator group control device.
Background
For example, patent document 1 listed below describes a method for diagnosing a main rope of an elevator. In this diagnostic method, a failure is predicted by estimating the elongation of the main rope.
Prior art documents
Patent document
Patent document 1: japanese patent laid-open publication No. 2016-60550
Disclosure of Invention
Problems to be solved by the invention
The technique described in patent document 1 is not a technique for controlling an elevator based on the result of failure prediction. Therefore, deterioration of the main rope cannot be delayed.
The present invention has been made to solve the above problems. The invention aims to provide a fault monitoring device of an elevator, an elevator and a group management device of the elevator, which can delay the deterioration of components.
Means for solving the problems
The elevator fault monitoring device of the invention comprises: an acquisition unit that acquires an observation result showing a state of a component of an elevator; and a load adjustment unit that transmits a command for reducing the load applied to the components of the elevator to the control unit of the elevator, based on the observation result obtained by the acquisition unit.
The elevator of the invention is provided with: the above-described failure monitoring device for an elevator; and a control unit for controlling the hoisting machine in accordance with the command received from the load adjustment unit. The acquisition unit acquires, as an observation result, an elongation of a main rope suspending a car and a counterweight via a hoisting machine.
The elevator fault monitoring device of the invention comprises: an acquisition unit that acquires an observation result showing a state of a component of an elevator having a plurality of cars; and a load adjustment unit that transmits a command for reducing the load applied to the components of the elevator to the group management control unit of the elevator, based on the observation result obtained by the acquisition unit.
An elevator group management device according to the present invention includes: the above-described failure monitoring device for an elevator; and a group management control unit that controls the assignment of calls to the plurality of cars in accordance with the command received from the load adjustment unit. The acquisition unit acquires, for each car, the elongation of a main rope suspending the car and a counterweight via a hoisting machine as an observation result.
Effects of the invention
In the present invention, the load adjustment unit transmits a command for reducing the load applied to the elevator components to the control unit of the elevator. Therefore, according to the present invention, deterioration of the member can be delayed.
Drawings
Fig. 1 is a functional block diagram of a fault monitoring system for an elevator according to embodiment 1.
Fig. 2 is a flowchart showing an example of operation of the elevator fault monitoring system according to embodiment 1.
Fig. 3 is a flowchart showing an example of the operation of the car monitoring unit in embodiment 1.
Fig. 4 is a functional block diagram of a fault monitoring system for an elevator according to embodiment 2.
Fig. 5 is a functional block diagram of a fault monitoring system for an elevator according to embodiment 3.
Fig. 6 is a flowchart showing an example of the operation of the car monitoring unit in embodiment 3.
Fig. 7 is a flowchart showing an example of operation of the elevator fault monitoring system according to embodiment 3.
Fig. 8 is a functional block diagram of a fault monitoring system for an elevator according to embodiment 4.
Fig. 9 is a hardware configuration diagram of the failure monitoring apparatus.
Detailed Description
A fault monitoring system for an elevator will be described in detail with reference to the accompanying drawings. In the drawings, the same or corresponding portions are denoted by the same reference numerals. Duplicate descriptions are appropriately simplified or omitted.
Fig. 1 is a functional block diagram of a fault monitoring system for an elevator according to embodiment 1.
As shown in fig. 1, the elevator fault monitoring system includes an elevator 1 and a fault monitoring device 2. The failure monitoring device 2 is provided outside the elevator 1. The failure monitoring device 2 is installed in, for example, a building different from the building in which the elevator 1 is installed. The failure monitoring device 2 has a function of communicating with the elevator 1 via a network, for example. For example, the failure monitoring device 2 may communicate with a plurality of independent elevators 1.
As shown in fig. 1, an 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 device 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 rated occupant number determination unit 15 and an acceleration determination unit 16.
The main ropes of the elevator 1 suspend the car 3 and the counterweight via the hoisting machine. The car 3 and the counterweight are lifted and lowered by driving the hoisting machine.
The control unit 4 controls the hoisting machine to control the movement of the car 3. That is, the control unit 4 controls the raising and lowering of the car 3. The control unit 4 controls the acceleration of the car 3 by, for example, transmitting a torque command to the hoisting machine. The control unit 4 controls the hoisting machine so that the acceleration of the car 3 does not exceed a preset maximum acceleration, for example.
The notification unit 5 notifies information to the inside of the car 3. The notification unit 5 displays visual information on a monitor, an indicator, or the like in the car 3, for example. The visual information is, for example, characters and images. The notification unit 5 may play audio information from a speaker, an interphone, or the like in the car 3.
The notification unit 5 notifies the car 3 of the current rated number of persons riding in the elevator 1, for example. The notification unit 5 displays the number of persons showing the current rated number of persons riding the elevator on a monitor or the like in the car 3. The notification of the rated number of people riding the elevator can be performed at all times, for example. The notification of the rated number of passengers on the elevator may be performed at a predetermined timing, for example.
The car monitoring unit 6 monitors a load applied to the car 3. The car monitoring unit 6 detects the number of passengers in the car 3, for example. The car monitoring unit 6 determines whether or not the number of people in the car 3 exceeds the rated number of people for riding the elevator, for example. This determination is made, for example, when the car 3 stops.
As a method of detecting the number of persons riding in the car by the car monitoring unit 6, for example, a method of recognizing persons using an image captured by a camera provided in the car 3 is used. As a method of detecting the number of passengers in the car by the car monitoring unit 6, for example, a method of estimating the number of passengers by dividing the weight in the car 3 by a predetermined weight may be used.
When the number of persons in the car 3 exceeds the rated number of persons for riding the elevator, the car monitoring unit 6 generates a warning sound in the car 3, for example. Thus, the elevator 1 transmits the number of passengers who have taken the elevator exceeding the rated number of passengers who have taken the elevator to the passengers in the car 3. When the car monitoring unit 6 determines that the number of people in the car 3 exceeds the rated number of people for riding in the elevator, the control unit 4 does not start the movement of the car 3, for example.
The observation unit 7 observes the state of the components of the elevator 1 when the elevator 1 is operating. The observation unit 7 observes, for example, the amount of extension of the main rope from the time of installation of the elevator 1. The observation of the elongation of the main rope is performed based on, for example, an error between the reference 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 to the failure monitoring device 2 together with the current time. The unit of elongation is, for example, millimeters.
The acquisition unit 8 acquires an observation result showing the state of the component of the elevator 1. The acquiring unit 8 acquires, for example, the amount of elongation of the main rope sent from the observing unit 7 and the time as the observation result.
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 registering unit 9 records, for example, the elongation amount of the main rope in the observation result table 13. The observation value registering unit 9 records, for example, the time when the observation unit 7 transmits the elongation amount of the main rope together with the elongation amount as the observation time of the elongation amount in the observation result table 13. In the observation result table 13, for example, the elongation and the observation time are recorded in a state associated with each other. The observation result table 13 may record a plurality of observation results at different observation times, for example.
The threshold value registering unit 10 records information in the load adjustment table 14. The threshold value registering unit 10 records information input by an operator or the like in the load adjustment table 14 using, for example, an operation unit not shown.
The threshold value registration unit 10 records, for example, a threshold value of the elongation amount of the main rope, the number of rated persons riding in 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, the threshold value, the number of persons who are rated for riding the elevator, and the maximum acceleration are recorded in a state associated therewith. The unit of the threshold is, for example, millimeters. The rated number of persons riding an elevator recorded in the load adjustment table 14 is set to a number of persons smaller than the normal rated number of persons riding an elevator 1, 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, for example.
The load adjustment unit 11 transmits a command for reducing the load applied to the components of the elevator 1 to 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 elongation amount of the main rope recorded in the observation result table 13 with 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 the respective elongation amounts with the threshold values, for example, in the order of the observation times. For example, when at least one of the elongation amounts exceeds the threshold value, the load adjustment unit 11 transmits the threshold value to the rated occupant number determination unit 15 and the acceleration determination unit 16. For example, when any of the elongation amounts does not exceed the threshold value, the load adjustment unit 11 does not transmit the threshold value to the rated head determining unit 15 and the acceleration determining unit 16.
The rated passenger number determining unit 15 reads the rated passenger number for riding the elevator corresponding to the received threshold value from the load adjustment table 14, for example. The rated passenger number determining unit 15 transmits a rated passenger number command indicating the read rated passenger number for riding the elevator to the notifying unit 5 and the car monitoring unit 6, for example.
The acceleration determining unit 16 reads the maximum acceleration corresponding to the received threshold from the load adjustment table 14, for example. The acceleration determining unit 16 transmits, for example, an acceleration command indicating the read maximum acceleration to the control unit 4.
When the rated passenger number command is transmitted from the rated passenger number determining unit 15, the number of passengers indicated by the rated passenger number command is treated as the current rated passenger number for riding in the elevator 1. That is, the rated number of persons riding the elevator 1 is changed according to the rated number of persons instruction. In this case, the notification unit 5 notifies the current rated number of persons riding the elevator based on the rated number of persons command to the car 3. For example, when the rated number of persons is always displayed in the car 3, the notification unit 5 changes the content of the rated number of persons display to the number of persons indicated by the rated number of persons command. The car monitoring unit 6 determines whether or not the number of persons in the car 3 exceeds a current rated number of persons for riding the elevator based on the rated number of persons command.
When the number of persons in the car 3 exceeds the current rated number of persons riding the elevator based on the rated number of persons command, the car monitoring unit 6 generates a warning sound into the car 3. When the car monitoring unit 6 determines that the number of people in the car 3 exceeds the current rated number of people for riding the elevator based on the rated number of people command, the control unit 4 does not start the movement of the car 3, for example.
When the acceleration command is sent 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 according to 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 example of operation of the elevator fault monitoring system according to embodiment 1.
The elevator 1 observes the elongation of the main rope (step S101). The elevator 1 transmits the elongation and the observation time to the failure monitoring device 2 (step S102). For example, when the elongation "1.6 mm" was observed at "11 o' clock 59 min", the observation results were recorded as shown in the observation result table 13 shown in fig. 1.
The failure monitoring device 2 determines whether the elongation exceeds a threshold value (step S103). If the elongation does not exceed the threshold value, the process is repeated from step S101.
When it is determined in step S103 that the extension amount exceeds the threshold value, the failure monitoring device 2 transmits the rated number of persons riding the elevator corresponding to the threshold value 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 elongation "1.6 mm" exceeds the threshold value "1.5 mm", the trouble monitoring device 2 transmits the rated number of persons "10 persons" riding the elevator and the maximum acceleration "5 m/min" to the elevator 1.
The elevator 1 changes the indication of the rated number of persons in the car 3 according to the received rated number of persons riding the elevator (step S106). According to the example shown in fig. 1, the elevator 1 changes the rated number of people 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 example of the operation of the car monitoring unit in embodiment 1.
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 rated number of passengers (step S202). When it is determined in step S202 that the number of persons riding the elevator does not exceed the rated number of persons riding the elevator, the process of step S201 is performed.
When it is determined in step S202 that the number of passengers exceeds the rated number of passengers, the car monitoring unit 6 generates a warning sound into the car 3 (step S203). According to the example shown in fig. 1, when the number of people in the car 3 is 11 or more, the car monitoring unit 6 generates a warning sound. After step S203, the process of step S201 is performed.
In embodiment 1, the acquisition unit 8 acquires an observation result showing the state of the components of the elevator 1. The load adjusting 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 based on the observation result obtained by the obtaining unit 8. That is, the failure monitoring device 2 provided outside the elevator 1 monitors and controls the failure of the elevator 1. Therefore, according to embodiment 1, deterioration of the components of the elevator can be delayed. As a result, the time until the repair of the elevator is performed can be extended.
In embodiment 1, the acquisition unit 8 acquires, as an observation result, the elongation of the main rope suspending the car 3 and the counterweight via the hoisting machine. The control unit 4 controls the hoisting machine in accordance with the command received from the load adjustment unit 11. Therefore, according to embodiment 1, deterioration of the main rope of the elevator can be delayed.
In embodiment 1, the load adjusting unit 11 transmits a rated passenger number command indicating a smaller number of passengers than the normal rated passenger number for riding the elevator 1 to the car monitoring unit 6 and the control unit 4 based on the elongation of the main rope acquired by the acquiring unit 8. The car monitoring unit 6 determines whether or not the number of persons in the car 3 exceeds a current rated number of persons for riding the elevator based on the rated number of persons command. Therefore, according to embodiment 1, deterioration of the main ropes of the elevator can be delayed by limiting the number of rated persons riding the elevator.
In embodiment 1, the load adjustment unit 11 transmits a rated head count command to the notification unit 5. The notification unit 5 notifies the car 3 of information indicating the current rated number of persons riding the elevator based on the rated number of persons command. Therefore, according to embodiment 1, the number of passengers whose boarding rate has been changed can be transmitted to the passengers in the car.
In embodiment 1, the load adjusting 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 elongation of the main rope acquired by the acquiring unit 8. 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. Therefore, according to embodiment 1, deterioration of the main ropes of the elevator can be delayed by limiting the acceleration of the car.
Next, a fault monitoring system for an elevator will be described focusing on differences from embodiment 1. The same or corresponding portions as those in embodiment 1 are denoted by the same reference numerals, and a part of the description is omitted.
Fig. 4 is a functional block diagram of a fault monitoring system for an elevator according to embodiment 2.
As shown in fig. 4, in embodiment 2, an elevator 1 includes a failure monitoring device 2. That is, the failure monitoring device 2 is included in the elevator 1. This eliminates the need for a network line or the like to be connected to the outside of the elevator. Therefore, according to embodiment 2, the same effects as those of embodiment 1 can be obtained with a simple configuration.
Next, a fault monitoring system for an elevator will be described focusing on differences from embodiment 1. The same or corresponding portions as those in embodiment 1 are denoted by the same reference numerals, and a part of the description is omitted.
Fig. 5 is a functional block diagram of a fault monitoring system for an elevator according to embodiment 3.
As shown in fig. 5, the elevator fault monitoring system includes an elevator 1, a fault monitoring device 2, and a group control device 17. The failure monitoring device 2 is provided outside the elevator 1. The failure monitoring device 2 is installed in, for example, a building different from the building in which the elevator 1 is installed. The group control device 17 is installed in, for example, a building in which the elevator 1 is installed. The failure monitoring device 2 has a function of communicating with the elevator 1 and the group control device 17 via a network, for example.
In embodiment 3, the elevator 1 includes a plurality of cars 3. Fig. 5 illustrates an elevator 1 having a 1 st cage 3a and a 2 nd cage 3 b.
As shown in fig. 5, the group control device 17 includes a group control unit 18 and a database 19. The database 19 stores a load condition table 20. The load adjustment unit 11 has a distribution head number adjustment unit 21 and a distribution frequency adjustment unit 22.
The group control unit 18 performs group control of the plurality of cars 3. For example, the group control unit 18 determines which of the 1 st car 3a and the 2 nd car 3b is to respond to the call. That is, the group control unit 18 controls the assignment of calls to the plurality of cars 3.
The load condition table 20 records, for example, the cumulative number of passengers boarding each car 3 and the cumulative number of responses. In the load situation table 20, for example, the car name, the accumulated number of passengers, and the accumulated number of responses are recorded in a state associated therewith.
The car monitoring unit 6 monitors loads applied to the plurality of cars 3. The car monitoring unit 6 detects the number of passengers in each car 3, for example. The car monitoring unit 6 increases the cumulative number of passengers boarding the car 3 in the load situation table 20 by the number of passengers boarding the car 3 that responds to a call when the call is generated, for example. The car monitoring unit 6 increases the cumulative number of responses of the cars 3 that have responded to a call in the load situation table 20 by 1, for example.
The observation unit 7 observes, for example, the amount of extension of the main rope from the time of installation of the elevator 1 for each car 3.
The acquiring unit 8 acquires, for example, the amount of elongation of the main rope of each car 3 transmitted from the observing unit 7 and the observation time as the observation result of 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, the car name, the elongation, and the observation time are recorded in a state associated therewith.
The threshold value registering unit 10 records, for example, a threshold value of the elongation of the main rope, a person number adjustment coefficient, and a number adjustment coefficient in the load adjustment table 14. The number-of-persons adjustment coefficient is a coefficient for adjusting the number of persons conveyed by each car 3. The number-of-times adjustment coefficient is a coefficient for adjusting the number of times each car 3 responds to a call. In the load adjustment table 14, for example, the threshold value, the number-of-persons adjustment coefficient, and the number-of-times adjustment coefficient are recorded in a state associated therewith. The unit of the threshold is, for example, millimeters. The unit of the number-of-persons adjustment coefficient and the number-of-times adjustment coefficient is, for example, a percentage. The number-of-persons adjustment coefficient and the number-of-times adjustment coefficient are set to values greater than 0 and less 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 control device 17 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 group management control unit 18, for example.
The load adjustment unit 11 compares, for example, the elongation amount of the main rope recorded in the observation result table 13 with the threshold value recorded in the load adjustment table 14. When a plurality of observations are recorded in the observation result table 13, the load adjustment unit 11 compares the respective elongations with the threshold values, for example, in the order of the observation times. For example, when there is an elongation exceeding a threshold value, the load adjuster 11 transmits the car name and the threshold value associated with the elongation to the head number adjuster 21 and the distribution frequency adjuster 22. For example, when there is no extension exceeding the threshold, the load adjuster 11 does not transmit the car name and the threshold to the number of times of assignment adjuster 21 and the number of times of assignment adjuster 22.
The distributed-head-number adjusting unit 21 reads, for example, a head-number adjustment coefficient corresponding to the received threshold value from the load adjustment table 14. The distributed passenger number adjusting unit 21 sends the received car name and the read passenger number adjusting coefficient to the group management control unit 18, for example.
The distribution frequency adjusting unit 22 reads out the frequency adjustment coefficient corresponding to the received threshold value from the load adjustment table 14, for example. The assignment frequency adjusting unit 22 transmits the received car name and the read frequency adjustment coefficient to the group management control unit 18, for example.
The group control unit 18 receives, for example, a car name in which the amount of elongation of the main rope exceeds a threshold value from the load adjustment unit 11. The group control unit 18 reads the cumulative number of passengers and the cumulative number of responses of all the cars 3 from the load situation table 20, for example, for each car 3. The group control unit 18 determines the car 3 that responds to the call, for example, based on the cumulative number of passengers boarding each car 3, the cumulative number of responses of each car 3, the number-of-passengers adjustment coefficient, and the number-of-times adjustment coefficient.
The group management control unit 18 determines whether or not both the 1 st condition and the 2 nd condition are satisfied, for example. The condition 1 is represented by the following formula (1), for example. The condition 2 is represented by, for example, the following formula (2).
(cumulative number of persons who take the car whose elongation exceeds the threshold) < (cumulative number of persons who take the car whose elongation does not exceed the threshold) × (adjustment coefficient of number of persons)/100 … … (1)
(cumulative number of responses of cage whose elongation exceeds threshold) < (cumulative number of responses of cage whose elongation does not exceed threshold) × (adjustment coefficient of number of times)/100 … … (2)
For example, when at least one of the 1 st condition and the 2 nd condition is not satisfied, the group control controller 18 moves the car 3 whose elongation of the main rope does not exceed the threshold value to the floor where the call has been made. For example, when both the 1 st condition and the 2 nd condition are satisfied, the group control unit 18 moves the car 3 whose elongation of the main rope exceeds the threshold value to the floor where the call has been made.
Fig. 6 is a flowchart showing an example of the operation of the car monitoring unit in embodiment 3.
The car monitoring unit 6 determines whether or not a call has occurred (step S301). When no call is generated, the process of step S301 is repeated.
When it is determined in step S301 that a call has been generated, the car monitoring unit 6 detects the number of people who have picked up the car 3 (step S302). The car monitoring unit 6 increases the accumulated number of passengers boarding the car 3 by the number of passengers boarding this time (step S303). The car monitoring unit 6 increments the cumulative response number of the car 3 by 1. For example, when 5 passengers are loaded in the 2 nd car 3b shown in fig. 5, the car monitoring unit 6 updates the cumulative number of passengers loaded in the 2 nd car 3b to "15 persons" and updates the cumulative number of responses of the 2 nd car 3b to "3 times". After step S303, the process of step S301 is performed.
Fig. 7 is a flowchart showing an example of operation of the elevator fault monitoring system according to embodiment 3.
The elevator 1 observes the elongation of the main rope for each car 3 (step S401). The elevator 1 transmits the elongation and the observation time to the failure monitoring device 2 (step S402). For example, when the elongation of "1.6 mm" is observed at "11 o' clock 59 min" for the 1 st car 3a, the observation results are recorded as shown in the observation result table 13 shown in fig. 5.
The failure monitoring device 2 determines whether or not there is an elongation exceeding a threshold value (step S403). If there is no elongation exceeding the threshold value, the process is repeated from step S401 onward.
When it is determined in step S403 that there is an elongation exceeding the threshold, the failure monitoring device 2 transmits the car name whose elongation exceeds the threshold and the number-of-persons adjustment coefficient corresponding to the threshold to the group control device 17 (step S404). According to the example shown in fig. 5, since the elongation "1.6 mm" exceeds the threshold value "1.5 mm", the failure monitoring device 2 transmits the car name "1 st car 3 a" and the number-of-persons adjustment coefficient "40%" to the group control device 17. Further, the failure monitoring device 2 transmits the car name whose elongation exceeds the threshold value and the number-of-times adjustment coefficient corresponding to the threshold value to the group control device 17 (step S405). According to the example shown in fig. 5, since the elongation "1.6 mm" exceeds the threshold value "1.5 mm", the failure monitoring device 2 transmits the car name "1 st car 3 a" and the number adjustment coefficient "40%" to the group control device 17.
The group control device 17 determines whether or not a call has occurred (step S406). When no call is generated, the process of step S406 is repeated.
When it is determined in step S406 that a call has been generated, the group control device 17 determines whether or not both of the 1 st condition and the 2 nd condition are satisfied (step S407). When it is determined in step S407 that both the 1 st condition and the 2 nd condition are not satisfied, the group control device 17 causes the car 3 whose elongation does not exceed the threshold value to respond to the call (step S408). When it is determined in step S407 that both the 1 st condition and the 2 nd condition are satisfied, the group control device 17 causes the car 3 whose elongation exceeds the threshold value to respond to the call (step S409).
According to the example shown in fig. 5, the cumulative number of passengers "5" of the 1 st cage 3a whose elongation exceeds the threshold is larger than "40%" of the cumulative number of passengers "10" of the 2 nd cage 3b whose elongation does not exceed the threshold. Further, the cumulative number of responses "1 time" of the 1 st car 3a whose elongation exceeds the threshold is larger than "40%" of the cumulative number of responses "2 times" of the 2 nd car 3b whose elongation does not exceed the threshold. In this case, since neither the 1 st condition nor the 2 nd condition is satisfied, the 2 nd car 3b responds to the call. In contrast, for example, in a state where the cumulative number of passengers riding in the 2 nd car 3b is updated to "15 persons" and the cumulative number of responses of the 2 nd car 3b is updated to "3 times", both the 1 st condition and the 2 nd condition are satisfied. In this case, the 1 st car 3a responds to the call.
As described above, according to embodiment 3, when the load is not excessively biased toward the car 3 whose elongation does not exceed the threshold, the car 3 whose elongation exceeds the threshold is not used. On the other hand, when the load is excessively biased toward the car 3 whose elongation does not exceed the threshold value, the car 3 whose elongation exceeds the threshold value is used.
In embodiment 3, the acquisition unit 8 acquires an observation result showing the state of a component of the elevator 1 having a plurality of cars 3. The load adjusting unit 11 transmits a command for reducing the load applied to the components of the elevator 1 to the group control unit 18 of the elevator 1 based on the observation result obtained by the obtaining unit 8. Therefore, according to embodiment 3, deterioration of components of an elevator having a plurality of cars can be delayed. As a result, the time until the repair of the elevator is performed can be extended.
In embodiment 3, the acquisition unit 8 acquires, as an observation result, the elongation of the main rope suspending the car 3 and the counterweight via the hoisting machine for each car 3. The group control unit 18 controls the assignment of calls to the plurality of cars 3 in accordance with the command received from the load adjustment unit 11. Therefore, according to embodiment 3, deterioration of the main ropes corresponding to the respective cars can be delayed.
In embodiment 3, when there is a car 3 in which the amount of elongation of the main rope acquired by the acquisition unit 8 exceeds a preset threshold value, the load adjustment unit 11 transmits the number-of-persons adjustment coefficient to the group control unit 18. The group control unit 18 determines the car 3 that responds to the call that is currently occurring, based on the cumulative number of passengers riding in the car 3 whose main rope elongation exceeds the threshold value, the cumulative number of passengers riding in the car 3 whose main rope elongation does not exceed the threshold value, and the number-of-passengers adjustment coefficient. Therefore, according to embodiment 3, deterioration of the main ropes corresponding to the respective cars can be delayed by adjusting the number of passengers riding between the plurality of cars.
In embodiment 3, when there is a car 3 in which the amount of elongation of the main rope acquired by the acquisition unit 8 exceeds a preset threshold value, the load adjustment unit 11 transmits the number-of-times adjustment coefficient to the group control unit 18. The group control unit 18 determines the car 3 that responds to the call that is currently occurring, based on the cumulative number of responses of the cars 3 for which the amounts of elongation of the main ropes exceed the threshold values, the cumulative number of responses of the cars 3 for which the amounts of elongation of the main ropes do not exceed the threshold values, and the number adjustment coefficient. Therefore, according to embodiment 3, deterioration of the main ropes corresponding to the respective cars can be delayed by adjusting the number of responses among the plurality of cars.
In embodiment 3, the group control controller 18 may determine the car 3 that responds to a call based on only the 1 st condition, for example, regardless of whether or not the 2 nd condition is satisfied. That is, for example, when the 1 st condition is not satisfied, the group control controller 18 may respond to a call to a car 3 whose elongation of the main rope does not exceed the threshold value, and when the 1 st condition is satisfied, the group control controller 18 may respond to a call to a car 3 whose elongation of the main rope exceeds the threshold value. In this case, regardless of the number of responses of each car 3, the car 3 that responds to a call is determined according to the number of passengers who take the car 3. Therefore, the processing load of the group control device 17 can be reduced.
In embodiment 3, the group control controller 18 may determine the car 3 that responds to the call only based on the 2 nd condition, for example, regardless of whether or not the 1 st condition is satisfied. That is, for example, when the condition 2 is not satisfied, the group control controller 18 may respond to the call to the car 3 whose elongation of the main rope does not exceed the threshold, and when the condition 2 is satisfied, the group control controller 18 may respond to the call to the car 3 whose elongation of the main rope exceeds the threshold. In this case, the car 3 that responds to the call is determined based on the number of responses of each car 3 regardless of the number of passengers in each car 3. Therefore, the processing load of the group control device 17 can be reduced.
Next, a fault monitoring system for an elevator will be described focusing on differences from embodiment 3. The same or corresponding portions as those in embodiment 3 are denoted by the same reference numerals, and a part of the description is omitted.
Fig. 8 is a functional block diagram of a fault monitoring system for an elevator according to embodiment 4.
As shown in fig. 8, in embodiment 4, the group control device 17 includes the failure monitoring device 2. That is, the failure monitoring device 2 is included in the group control device 17. This eliminates the need for an external network line or the like from the group control device 17. Therefore, according to embodiment 4, the same effects as those of embodiment 3 can be obtained with a simple configuration.
Fig. 9 is a hardware configuration diagram of the failure monitoring apparatus.
The functions 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 device 2 are realized by a processing circuit. The processing circuitry may be dedicated hardware 50. The processing circuit may also have a processor 51 and a memory 52. A part of the processing circuit may be dedicated hardware 50, and further, may include a processor 51 and a memory 52. Fig. 9 shows an example of a case where a part of the processing circuit is formed as dedicated hardware 50 and is further provided with a processor 51 and a memory 52.
Where at least a portion of the processing circuitry is at least one dedicated hardware 50, the processing circuitry corresponds to, for example, a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC, an FPGA, or a combination thereof.
In the case of a processing circuit having at least one processor 51 and at least one memory 52, the respective functions of the fault monitoring apparatus 2 are implemented by software, firmware, or a combination of software and firmware. The software and firmware are described as programs and are stored in the memory 52. The processor 51 realizes the functions of the respective sections by reading out and executing the program stored in the memory 52. The processor 51 is also called a CPU (Central Processing Unit), a Central Processing Unit, a Processing device, an arithmetic device, a microprocessor, a microcomputer, or a DSP. The Memory 52 corresponds to a nonvolatile or volatile semiconductor Memory such as a RAM (Random Access Memory), a ROM (Read Only Memory), a flash Memory, an EPROM (Erasable Programmable Read Only Memory), an EEPROM (Electrically Erasable Programmable Read Only Memory), a magnetic Disk, a flexible Disk, an optical Disk, a CD (compact Disk), a mini Disk (mini Disk), a DVD (Digital Versatile Disk), and the like.
In this way, the processing circuit may implement the functions of the fault monitoring apparatus 2 by hardware, software, firmware, or a combination thereof. The functions of the elevator 1 and the group control device 17 can be realized by a processing circuit similar to the processing circuit shown in fig. 9.
Industrial applicability
As described above, the present invention can be applied to a failure monitoring system for an elevator.
Description of the reference symbols
1: an elevator; 2: a failure monitoring device; 3: a car; 3 a: a 1 st car; 3 b: a 2 nd cage; 4: a control unit; 5: a notification unit; 6: a car monitoring unit; 7: an observation unit; 8: an acquisition unit; 9: an observation value registration unit; 10: a threshold value registration unit; 11: a load adjustment unit; 12: a database; 13: observation result table; 14: a load adjustment table; 15: a rated population determining section; 16: an acceleration determining unit; 17: a group management device; 18: a group management control unit; 19: a database; 20: a load condition table; 21: a number of distribution persons adjusting part; 22: a distribution frequency adjusting part; 50: dedicated hardware; 51: a processor; 52: a memory.
Claims (4)
1. A failure monitoring device for an elevator, comprising:
an acquisition unit that acquires an observation result showing a state of a component of an elevator having a plurality of cars; and
a load adjustment unit that transmits a command for reducing a load applied to components of the elevator to the group management control unit of the elevator based on the observation result acquired by the acquisition unit,
wherein the acquiring unit acquires, for each car, an elongation of a main rope suspending the car and a counterweight via a hoisting machine as an observation result,
the load adjustment unit transmits a population adjustment coefficient for adjusting the number of persons conveyed by each car to the group control unit based on the elongation of the main rope acquired by the acquisition unit for each car.
2. The failure monitoring device of an elevator according to claim 1,
the load adjusting unit transmits a number-of-times adjustment coefficient for adjusting the number of times each car responds to a call to the group control unit, based on the amount of elongation of the main rope acquired by the acquiring unit for each car.
3. An elevator group control device, comprising:
an acquisition unit that acquires an observation result showing a state of a component of an elevator having a plurality of cars;
a load adjustment unit that transmits a command for reducing a load applied to components of the elevator to a group management control unit of the elevator, based on the observation result acquired by the acquisition unit;
the group control device for an elevator further includes:
the group management control unit that controls the assignment of calls to a plurality of cars in accordance with the command received from the load adjustment unit; and
a database for storing the accumulated number of passengers of each cage,
the acquisition unit acquires, for each car, the elongation of a main rope suspending the car and a counterweight via a hoisting machine as an observation result,
when there is a car in which the amount of elongation of the main rope acquired by the acquisition unit exceeds a preset threshold value, the load adjustment unit transmits a number-of-persons adjustment coefficient for adjusting the number of persons conveyed by each car to the group control unit,
the group management control unit determines a car that responds to a call based on the cumulative number of passengers who takes the car whose main rope elongation exceeds a threshold value, the cumulative number of passengers who takes the car whose main rope elongation does not exceed the threshold value, and a number-of-passengers adjustment coefficient.
4. The group control device for elevators according to claim 3, wherein,
the elevator group control device is provided with a database for storing the accumulated response times of each car,
when there is a car in which the amount of elongation of the main rope acquired by the acquisition unit exceeds a preset threshold value, the load adjustment unit sends a number-of-times adjustment coefficient for adjusting the number of times each car responds to a call to the group control unit,
the group management control unit determines a car that responds to a call based on the cumulative number of responses of cars whose elongations of the main ropes exceed a threshold value, the cumulative number of responses of cars whose elongations of the main ropes do not exceed the threshold value, and a number adjustment coefficient.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2017/007351 WO2018154755A1 (en) | 2017-02-27 | 2017-02-27 | Elevator malfunction monitoring apparatus, elevator, and elevator group management apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110312670A CN110312670A (en) | 2019-10-08 |
| CN110312670B true CN110312670B (en) | 2020-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201780082956.2A Active CN110312670B (en) | 2017-02-27 | 2017-02-27 | Elevator fault monitoring device, elevator and elevator group management device |
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| Country | Link |
|---|---|
| JP (1) | JP6673523B2 (en) |
| CN (1) | CN110312670B (en) |
| WO (1) | WO2018154755A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020234928A1 (en) * | 2019-05-17 | 2020-11-26 | 三菱電機株式会社 | Elevator operation management system |
| JP6989069B1 (en) * | 2020-04-24 | 2022-01-05 | 三菱電機株式会社 | Elevator system |
| CN116362386B (en) * | 2023-03-15 | 2023-11-17 | 北京科技大学 | Method and system for predicting trapped people in urban elevator based on earthquake scene |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP6673523B2 (en) | 2020-03-25 |
| CN110312670A (en) | 2019-10-08 |
| WO2018154755A1 (en) | 2018-08-30 |
| JPWO2018154755A1 (en) | 2019-06-27 |
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