JP7315119B2 - elevator monitoring device - Google Patents

Description

The present disclosure relates to elevator monitoring devices.

Patent Literature 1 discloses an elevator system. The elevator system continues to operate by changing the normal operating parameters of the car when an abnormality occurs.

Japanese Patent Application Laid-Open No. 2008-230743

However, the elevator system described in Patent Document 1 detects an abnormality during normal operation and changes the normal operating parameters of the car. Therefore, the user may feel uneasy inside the car.

The present disclosure has been made to solve the above problems. SUMMARY OF THE INVENTION It is an object of the present disclosure to provide an elevator monitoring device capable of appropriately setting normal operating parameters of a car when no user is inside the car.

The elevator monitoring device according to the present disclosure includes a data collection unit that acquires the value of the magnitude of sound or vibration of the elevator car, a diagnostic operation that causes the car to operate without a user on the car, and when the value of the sound or vibration magnitude collected by the data collection unit during the diagnostic operation exceeds a threshold value, the operating speed of the car is gradually reduced, and the data collection unit sets the operating speed when the value of the sound or vibration magnitude is less than the threshold value as the normal operating speed of the car. provided.

The elevator monitoring device according to the present disclosure includes a data collection unit that acquires a value of the magnitude of sound or vibration of an elevator car, and a diagnostic operation in which the car is operated without a user on board. When the value of the magnitude of the sound or vibration collected by the data collection unit during the diagnostic operation exceeds a threshold value, the acceleration from the time the car stops to a constant operating speed and the deceleration from the constant operation speed until the car stops are gradually reduced, and the data collection unit makes the noise or vibration. an instruction unit for setting the acceleration from stopping to a constant running speed and the deceleration from the constant running speed to stopping of the car when the magnitude value is less than a threshold value as the acceleration from stopping to the constant running speed and the deceleration from the constant running speed to stopping in the case of normal operation of the car.

According to the present disclosure, an elevator monitoring device causes a diagnostic operation to be performed in which the car is operated without passengers in the car. When the sound or vibration amplitude value collected during diagnostic operation exceeds a threshold value, the monitoring device gradually slows down or decreases the operating speed or acceleration and deceleration of the car, and sets the operating speed or acceleration and deceleration when the sound or vibration amplitude value is below the threshold value as the normal operating speed or acceleration and deceleration of the car. Therefore, the normal operating parameters of the car can be appropriately set when the user is not inside the car.

1 is a configuration diagram of an elevator system to which an elevator monitoring device according to Embodiment 1 is applied; FIG. 1 is a block diagram of an elevator system to which an elevator monitoring device according to Embodiment 1 is applied; FIG. 4 is a flow chart for explaining an overview of the operation of the elevator monitoring device according to Embodiment 1. FIG. 1 is a hardware configuration diagram of an elevator monitoring device according to Embodiment 1. FIG. FIG. 10 is a diagram for explaining changes in acceleration and deceleration of a car of an elevator system to which the elevator monitoring device according to Embodiment 2 is applied; 9 is a flow chart for explaining an overview of the operation of the elevator monitoring device according to Embodiment 2. FIG.

Embodiments will be described with reference to the accompanying drawings. In addition, the same code|symbol is attached|subjected to the part which is the same or corresponds in each figure. Redundant description of this part will be simplified or omitted as appropriate.

Embodiment 1.
FIG. 1 is a configuration diagram of an elevator system to which an elevator monitoring device according to Embodiment 1 is applied.

In the elevator system of FIG. 1, a hoistway 1 runs through each floor of a building (not shown). The hoist 2 is provided above the hoistway 1 . The main rope 3 is wound around the hoisting machine 2 .

A pair of car-side guide rails 4 are provided inside the hoistway 1 . The longitudinal direction of each of the pair of car-side guide rails 4 is the vertical direction. The car 5 is provided inside the hoistway 1 . The car 5 is supported on one side of the main rope 3 from below. The car 5 is guided vertically by a pair of car-side guide rails 4 .

A pair of weight-side guide rails 6 are provided inside the hoistway 1 . The longitudinal direction of each of the pair of weight-side guide rails 6 is the vertical direction. A counterweight 7 is provided inside the hoistway 1 . The upper part of the counterweight 7 is supported on the other side of the main rope 3 . A counterweight 7 is guided vertically by a pair of weight-side guide rails 6 .

A governor 8 is provided above the hoistway 1 . A tension pulley 9 is provided in the lower part of the hoistway 1 . The governor rope 10 is provided endlessly. A governor rope 10 is wound around a governor 8 and a tension wheel 9. - 特許庁

The control device 11 is provided above the hoistway 1 . The control device 11 is electrically connected to the hoisting machine 2 and the equipment of the car 5 . A controller 11 is provided to control the elevator as a whole.

In the elevator of FIG. 1, the controller 11 rotates the hoist 2 . The main rope 3 moves following the rotation of the hoist 2 . The car 5 and the counterweight 7 follow the movement of the main rope 3 and move up and down in opposite directions. At this time, the governor rope 10 moves following the elevation of the car 5 . The governor 8 rotates following the movement of the governor rope 10 . The control device 11 recognizes the vertical position of the car 5 based on the rotational speed of the governor 8 .

A measuring instrument 12 is provided on the top of the car 5 . The measuring instrument 12 measures surrounding conditions. A measuring instrument 12 is provided so as to be able to measure the state inside the hoistway 1 . A measuring instrument 12 is provided so as to measure the state of the car 5 . For example, measuring instrument 12 is an acceleration sensor. For example, meter 12 is a microphone.

A diagnostic device 13 is provided on the top of the car 5 . Diagnostic device 13 is electrically connected to meter 12 .

The monitoring device 14 is provided near the control device 11 . The monitoring device 14 is electrically connected to the control device 11 and the diagnostic device 13 respectively. A monitoring device 14 is provided to monitor the state of the elevator based on information from the control device 11 .

The information center device 15 is installed at a location away from the building where the elevator is installed. For example, the information center device 15 is provided in an elevator maintenance company. The information center device 15 is provided so as to be able to grasp the state of the elevator based on the information from the monitoring device 14 .

Next, with reference to FIG. 2, the operation during diagnostic operation of the elevator system to which the elevator monitoring device is applied will be described.
FIG. 2 is a block diagram of an elevator system to which the elevator monitoring device according to Embodiment 1 is applied.

As shown in FIG. 2, the monitoring device 14 includes an instruction section 14a, a data collection section 14b, and a comparison section 14c. The monitoring device 14 preliminarily stores a schedule for performing the diagnostic operation. For example, diagnostic operation is performed periodically during a time period when the frequency of use is low. For example, a diagnostic run is performed once every day early in the morning. For example, the diagnostic operation is a remote test operation instructed by the information center device 15 .

The control device 11 performs diagnostic operation according to instructions from the instruction unit 14a. The control device 11 drives the car 5 (not shown) without any user on board. At this time, the control device 11 responds to the elevator call from the user without rejecting it. For example, the control device 11 notifies the user that the diagnostic operation is in progress. For example, the control device 11 displays to the user that diagnostic operation is being performed via a display device (not shown). At this time, the diagnostic operation is temporarily suspended. The diagnostic run is then resumed when the starting conditions are met again.

The measuring device 12 measures the surrounding conditions while the car 5 is running. Specifically, the microphone collects ambient sounds. The acceleration sensor measures vibration of the car 5 . Information on the magnitude of the sound or vibration measured by the measuring instrument 12 is transmitted to the diagnostic device 13 .

The diagnostic device 13 transmits information on the magnitude of the sound or vibration to the data collection unit 14b.

The data collection unit 14b transmits the acquired information on the magnitude of the sound or vibration to the comparison unit 14c.

The comparison unit 14c determines whether the value of the magnitude of sound or vibration is equal to or greater than a threshold. The comparison unit 14c transmits the determined result to the instruction unit 14a.

The instructing unit 14a causes the control device 11 to change the operating speed of the car 5 based on the result determined by the comparing unit 14c.

The monitoring device 14 transmits information on the result of diagnostic driving to the information center device 15 .

Next, an outline of the operation of the monitoring device 14 will be described with reference to FIG.
FIG. 3 is a flow chart for explaining the outline of the operation of the elevator monitoring device according to the first embodiment.

In step S1, the monitoring device 14 causes the control device 11 to start diagnostic operation. The monitoring device 14 causes the control device 11 to operate the car 5 at the rated speed. For example, the rated speed is 105m/min. Subsequently, the monitoring device 14 operates in step S2.

In step S2, the monitoring device 14 determines whether or not the value of the measured sound or vibration magnitude is equal to or greater than a threshold. If the value of the magnitude of the sound or vibration is not equal to or greater than the threshold in step S2, the monitoring device 14 causes the control device 11 to start normal operation. When the value of the magnitude of the sound or vibration is equal to or greater than the threshold in step S2, the monitoring device 14 performs the operation of step S3.

In step S3, the monitoring device 14 causes the control device 11 to reduce the operating speed of the car 5 to the first speed and then continue the diagnostic operation. For example, the first speed is 90m/min. Subsequently, the monitoring device 14 operates in step S4. In step S4, the monitoring device 14 determines whether or not the value of the measured sound or vibration magnitude is equal to or greater than a threshold.

If the value of the magnitude of the sound or vibration is not equal to or greater than the threshold in step S4, the monitoring device 14 performs the operation of step S5. In step S5, the monitoring device 14 causes the control device 11 to set the normal operating speed of the car 5 to the first speed. After that, the monitoring device 14 causes the control device 11 to start normal operation.

If the value of the magnitude of the sound or vibration is equal to or greater than the threshold in step S4, the monitoring device 14 performs the operation of step S6. In step S6, the monitoring device 14 causes the control device 11 to reduce the operating speed of the car 5 to the second speed and then continue the diagnostic operation. For example, the second speed is 75 m/min. Subsequently, the monitoring device 14 operates in step S7. In step S7, the monitoring device 14 determines whether or not the value of the measured sound or vibration magnitude is equal to or greater than a threshold.

If the value of the magnitude of the sound or vibration is not equal to or greater than the threshold in step S7, the monitoring device 14 performs the operation of step S8. In step S8, the monitoring device 14 causes the control device 11 to set the normal operating speed of the car 5 to the second speed. After that, the monitoring device 14 causes the control device 11 to start normal operation.

If the value of the magnitude of the sound or vibration is equal to or greater than the threshold in step S7, the monitoring device 14 performs the operation of step S9. In step S9, the monitoring device 14 notifies the information center device 15 of the diagnosis result. The monitoring device 14 causes the control device 11 to set the normal operating speed of the car 5 to the operating speed at which the magnitude of the measured sound or vibration is the lowest value. After that, the monitoring device 14 causes the control device 11 to start normal operation.

According to the first embodiment described above, the monitoring device 14 causes the car 5 to operate without a user on board, thereby performing diagnostic operation. When the value of the magnitude of sound or vibration collected during diagnostic operation exceeds a threshold value, the monitoring device 14 gradually reduces the operating speed of the car 5, and sets the operating speed when the value of the magnitude of sound or vibration is less than the threshold value as the normal operating speed of the car. Therefore, the normal operating parameters of the car can be appropriately set when the user is not inside the car. As a result, it is possible to reduce the user's anxiety caused by abnormal noise or vibration of the car due to wear of the guide shoes or running out of oil on the car-side guide rails 4 .

Further, when the value of the magnitude of the sound or vibration of the car 5 exceeds the threshold value even if the operating speed of the car 5 is reduced during diagnostic operation, the monitoring device 14 sets the operating speed at which the value of the magnitude of the sound or vibration of the car 5 becomes the lowest value as the normal operating speed of the car 5. Therefore, the operation can be continued without stopping the elevator.

Note that the monitoring device 14 may stop the operation of the elevator when the magnitude of the sound or vibration of the car 5 exceeds the threshold even if the operation speed of the car 5 is reduced during diagnostic operation. In this case, by notifying the information center device 15 that the elevator is stopped, the elevator can be inspected early.

Note that the measuring instrument 12 and the diagnostic device 13 may be retrofitted to the elevator. In this case, the diagnostic operation function can be added when the elevator is renewed.

Note that the measuring device 12 may directly transmit the measured information to the monitoring device 14 instead of the diagnostic device 13 .

Note that the measuring device 12 may transmit the measured information to the control device 11 instead of the diagnostic device 13 .

Note that the threshold value to be compared with the value of the magnitude of sound or vibration may be dynamically set by the information center device 15 .

Note that the value to be compared with the threshold value may be only the loudness value.

Note that the value to be compared with the threshold value may be only the magnitude of vibration.

Next, an example of the monitoring device 14 will be described with reference to FIG.
FIG. 4 is a hardware configuration diagram of the elevator monitoring device according to the first embodiment.

Each function of monitoring device 14 may be implemented by a processing circuit. For example, the processing circuitry comprises at least one processor 100a and at least one memory 100b. For example, the processing circuitry comprises at least one piece of dedicated hardware 200 .

When the processing circuitry comprises at least one processor 100a and at least one memory 100b, each function of the monitoring device 14 is implemented in software, firmware, or a combination of software and firmware. At least one of software and firmware is written as a program. At least one of software and firmware is stored in at least one memory 100b. At least one processor 100a implements each function of the monitoring device 14 by reading and executing a program stored in at least one memory 100b. The at least one processor 100a is also referred to as a central processing unit, processing unit, arithmetic unit, microprocessor, microcomputer, DSP. For example, the at least one memory 100b is a nonvolatile or volatile semiconductor memory such as RAM, ROM, flash memory, EPROM, EEPROM, magnetic disk, flexible disk, optical disk, compact disk, mini disk, DVD, or the like.

Where the processing circuitry comprises at least one piece of dedicated hardware 200, the processing circuitry may be implemented, for example, in single circuits, multiple circuits, programmed processors, parallel programmed processors, ASICs, FPGAs, or combinations thereof. For example, each function of the monitoring device 14 is implemented by a processing circuit. For example, each function of the monitoring device 14 is collectively realized by a processing circuit.

A part of each function of the monitoring device 14 may be realized by dedicated hardware 200 and the other part may be realized by software or firmware. For example, the function of the instruction unit 14a may be realized by a processing circuit as dedicated hardware 200, and the functions other than the function of the instruction unit 14a may be realized by reading and executing a program stored in at least one memory 100b by at least one processor 100a.

Thus, the processing circuitry implements each function of monitoring device 14 in hardware 200, software, firmware, or a combination thereof.

Although not shown, each function of the control device 11 and the diagnostic device 13 is also implemented by a processing circuit equivalent to the processing circuit that implements each function of the monitoring device 14 .

Embodiment 2.
FIG. 5 is a diagram for explaining changes in acceleration and deceleration of the car of the elevator system to which the elevator monitoring device according to the second embodiment is applied. The same reference numerals are given to the same or corresponding parts as those of the first embodiment. Description of this part is omitted.

In the second embodiment, the instructing unit 14a causes the control device 11 to change the normal acceleration or deceleration of the car 5 based on the result determined by the comparing unit 14c.

In FIG. 5 , the solid line indicates the speed change when the car 5 is accelerated from a stop to a constant running speed before being changed by the diagnostic operation and decelerated from the constant running speed to a stop. The dashed line shows the running speed of car 5 when the acceleration and deceleration after being modified by the diagnostic run are applied.

Next, an overview of the operation of the elevator monitoring device will be described with reference to FIG.
FIG. 6 is a flow chart for explaining the outline of the operation of the elevator monitoring device according to the second embodiment.

In step S11, the monitoring device 14 causes the control device 11 to start diagnostic operation. The monitoring device 14 causes the control device 11 to operate the car 5 so that the acceleration from the stop of the car 5 to a constant running speed and the deceleration from the constant running speed to the stop of the car 5 become the rated acceleration and deceleration. Subsequently, the monitoring device 14 operates in step S2.

In step S12, the monitoring device 14 determines whether or not the measured sound or vibration magnitude is equal to or greater than a threshold. If the value of the magnitude of the sound or vibration is not equal to or greater than the threshold in step S12, the monitoring device 14 causes the control device 11 to start normal operation. When the value of the magnitude of the sound or vibration is equal to or greater than the threshold in step S12, the monitoring device 14 performs the operation of step S13.

In step S13, the monitoring device 14 causes the control device 11 to reduce the acceleration from the stop of the car 5 to a constant running speed and the deceleration from the constant running speed to the stop of the car 5 to the first acceleration and deceleration, and then continue diagnostic operation. Note that the first acceleration and deceleration are smaller than the rated acceleration and deceleration. Subsequently, the monitoring device 14 operates in step S14. In step S14, the monitoring device 14 determines whether or not the value of the measured sound or vibration magnitude is equal to or greater than a threshold.

When the value of the magnitude of the sound or vibration is not equal to or greater than the threshold in step S14, the monitoring device 14 performs the operation of step S15. In step S15, the monitoring device 14 causes the control device 11 to set the acceleration from the stop of the car 5 to a constant running speed and the deceleration from the constant running speed to the stop of the car 5 to the first acceleration and deceleration in the case of normal operation. After that, the monitoring device 14 causes the control device 11 to start normal operation.

When the value of the magnitude of the sound or vibration is equal to or greater than the threshold in step S14, the monitoring device 14 performs the operation of step S16. In step S16, the monitoring device 14 causes the control device 11 to reduce the acceleration from the stop of the car 5 to a constant running speed and the deceleration from the constant running speed to the stop of the car 5 to the second acceleration and deceleration, and then continue diagnostic operation. Note that the second acceleration and deceleration are smaller than the first acceleration and deceleration. Subsequently, the measuring instrument 12 performs the operation of step S17. In step S17, the monitoring device 14 determines whether or not the value of the measured sound or vibration magnitude is equal to or greater than a threshold.

If the value of the magnitude of the sound or vibration is not equal to or greater than the threshold in step S17, the monitoring device 14 performs the operation of step S18. In step S18, the monitoring device 14 causes the control device 11 to reduce the acceleration from the stop of the car 5 to a constant running speed and the deceleration from the constant running speed to the stop of the car 5 to the second acceleration and deceleration. After that, the monitoring device 14 causes the control device 11 to start normal operation.

When the value of the magnitude of the sound or vibration is equal to or greater than the threshold in step S17, the monitoring device 14 performs the operation of step S19. In step S19, the monitoring device 14 notifies the information center device 15 of the diagnosis result. The monitoring device 14 causes the control device 11 to set the acceleration and deceleration from the time when the car 5 stops to a constant operating speed and the deceleration when the car 5 stops from the constant operating speed to the acceleration and deceleration at which the magnitude of the measured sound or vibration becomes the minimum value in the case of normal operation of the car 5. After that, the monitoring device 14 causes the control device 11 to start normal operation.

According to the second embodiment described above, the monitoring device 14 causes the car 5 to operate without a user on board, thereby executing diagnostic operation. When the value of the magnitude of the sound or vibration collected during diagnostic operation exceeds a threshold value, the monitoring device 14 gradually reduces the acceleration from when the car 5 stops to a certain operating speed and the deceleration from the certain operating speed until the car 5 stops, and sets the operating speed when the value of the magnitude of the sound or vibration falls below the threshold value as the normal acceleration and deceleration of the car. Therefore, the normal acceleration and deceleration of the car can be set without the user inside the car. As a result, it is possible to reduce the user's anxiety caused by abnormal noise or vibration of the car due to wear of the guide shoes or running out of oil on the car-side guide rails 4 .

Note that only the acceleration of the car 5 may be reduced by the monitoring device 14 .

It should be noted that only the deceleration of the car 5 may be reduced by the monitoring device 14 .

As described above, the elevator monitoring device of the present disclosure can be used in an elevator system.

1 Hoistway 2 Hoisting Machine 3 Main Rope 4 Car Side Guide Rail 5 Car 6 Weight Side Guide Rail 7 Counterweight 8 Governor 9 Tension Wheel 10 Governor Rope 11 Control Device 12 Measuring Instrument 13 Diagnosis Device 14 Monitoring Device 14a Instruction Part 14b Data Collection Part 14c Comparison Unit 15 Information Center Device 100a Processor 100b Memory 200 Hardware

Claims (4)

a data acquisition unit for obtaining elevator car sound or vibration magnitude values;
an instruction unit for performing diagnostic operation in which the car is operated without a user on board, and when the value of the magnitude of sound or vibration collected by the data collection unit during the diagnostic operation is equal to or greater than a threshold value, gradually decelerates the driving speed of the car, and sets the driving speed when the value of the magnitude of sound or vibration by the data collection unit is less than the threshold value as the normal driving speed of the car;
elevator monitoring equipment. 2. The elevator monitoring apparatus according to claim 1, wherein, when the value of the magnitude of sound or vibration of the car exceeds a threshold value even if the operating speed of the car is reduced during diagnostic operation, the instruction unit causes the operating speed at which the value of the magnitude of sound or vibration of the car becomes a minimum value to be set as the normal operating speed of the car. a data acquisition unit for obtaining elevator car sound or vibration magnitude values;
A diagnostic drive is performed in which the car is driven without a user in the car, and when the value of the magnitude of sound or vibration collected by the data collection unit during the diagnostic drive exceeds a threshold value, the acceleration from the car stop to the driving speed and the deceleration from the constant driving speed to the car stop are gradually reduced, and when the value of the magnitude of the sound or vibration is less than the threshold value, the data collection unit reduces the acceleration from the car stop to the constant driving speed and the an instruction unit for setting the deceleration of the car from a constant running speed to a stop as the acceleration from the time when the car stops to a constant running speed and the deceleration from the constant running speed to a stop of the car in the case of normal operation of the car;
elevator monitoring equipment. If the value of the magnitude of sound or vibration of the car exceeds a threshold value even after the acceleration from stopping to a constant operating speed and the deceleration from the constant operating speed to stopping are reduced stepwise during diagnostic operation, the instruction unit controls the acceleration from stopping to a constant operating speed and the deceleration from the constant operating speed to stopping of the car at which the value of the magnitude of noise or vibration of the car reaches a minimum value. 4. The apparatus for monitoring an elevator according to claim 3, wherein the acceleration from the time when the car stops to a constant running speed and the deceleration from the constant running speed to the time when the car stops are set.

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