CN114751271A

CN114751271A - Method and device for monitoring elevator noise

Info

Publication number: CN114751271A
Application number: CN202210223393.7A
Authority: CN
Inventors: 蔡晓华; 吴伟; 俞英杰
Original assignee: Shanghai Mitsubishi Elevator Co Ltd
Current assignee: Shanghai Mitsubishi Elevator Co Ltd
Priority date: 2022-03-09
Filing date: 2022-03-09
Publication date: 2022-07-15

Abstract

The invention discloses a method for monitoring elevator noise, which comprises the following steps: step S1, the elevator enters a noise monitoring mode; step S2, the monitoring device enters a monitoring state at a monitoring point and collects a noise value; step S3, the elevator automatically runs according to the preset route; step S4, the monitoring device stores the monitoring data; step S5, after the monitoring is finished, the monitoring device generates a monitoring report according to the monitoring data; step S6, the elevator exits the noise monitoring mode. The invention can conveniently and automatically monitor the running noise of the elevator without influencing the normal use of the elevator.

Description

Method and device for monitoring elevator noise

Technical Field

The invention relates to the field of elevators, in particular to a method and a device for monitoring elevator noise.

Background

Along with the continuous lifting of the building height, the power and the speed of the elevator are improved, and the problems of vibration and noise are easily caused, so that the indoor sound environment of the building is polluted. The radiated vibrations and noise are further exacerbated by wear or lack of proper maintenance after certain elevator usage times. Noise pollution of the elevator in the room has become a major concern, and it is therefore necessary to monitor and evaluate the noise of the elevator installation regularly after the installation of the elevator installation and during future use.

However, the elevator is not a device which is continuously operated, and in some occasions, the elevator may be in a standby state for a long time, and the operation also needs to go through a series of steps of standby-passenger calling-elevator operation-target floor selection-elevator operation. Moreover, the elevator shaft extends through the entire building height, and the up and down travel of the elevator may have a noisy effect on many or even most floors. These characteristics make it a difficult problem how to monitor and evaluate elevator noise.

The disclosure of the document: CN105283400A, discloses a method of maintaining an elevator by monitoring changes in elevator noise over time, but still primarily manually collecting noise data by means of portable devices.

The disclosure of the document: CN110987163A discloses a device capable of automatically moving to a suitable monitoring position for noise monitoring, but it cannot interact with an elevator and cannot automatically monitor the operation noise of the elevator in the building.

Disclosure of Invention

Based on the defects of the prior art, the invention aims to solve the technical problem of how to more conveniently and automatically monitor the running noise of the elevator without influencing the normal use of the elevator.

In order to solve the technical problem, the invention provides a method for monitoring the noise of an elevator, which comprises the following steps:

step S1, the elevator enters a noise monitoring mode; step S2, the monitoring device enters a monitoring state at a monitoring point and collects a noise value; step S3, the elevator automatically runs according to the preset route; step S4, the monitoring device stores the monitoring data; step S5, after the monitoring is finished, the monitoring device generates a monitoring report according to the monitoring data; step S6, the elevator exits the noise monitoring mode.

Preferably, in step S1, after the monitoring device sends a monitoring command to the elevator, the elevator enters a noise monitoring mode.

Preferably, the monitoring device is a mobile monitoring device

Preferably, in step S2, the mobile monitoring device moves to the monitoring point by boarding the elevator.

Preferably, the monitoring points are multiple.

Preferably, in step S3, the preset route is at least one round trip between two terminal layers.

Preferably, the monitoring point is a calling box of a hall.

Preferably, the monitoring point is a position close to an elevator shaft of an elevator waiting hall of a landing. The monitoring point is about 1 meter away from the landing door or the shaft wall.

Preferably, in step S4, the monitoring device stores the floor and the location of the monitoring point.

The invention also provides a monitoring device for monitoring the noise of the elevator, which comprises:

a noise sensor for converting the sound pressure signal into an electrical signal; the data acquisition unit is used for acquiring the electric signal output by the noise sensor; the computing unit is used for processing the electric signals to obtain a noise characteristic value; a storage unit for storing the noise characteristic value and the noise reference value; the management unit is used for comparing the noise characteristic value with a noise reference value, labeling the noise characteristic value exceeding the noise reference value and a corresponding monitoring point, and generating a monitoring report; and the signal sending and receiving unit is used for communicating with the elevator and controlling the elevator to enter the noise monitoring mode or exit the noise monitoring mode.

Preferably, the noise characteristic value is a noise-equivalent continuous a sound level during monitoring.

Preferably, the noise characteristic value is a noise octave band sound pressure level, including at least sound pressure levels of three octave bands of 63Hz, 125Hz and 250 Hz.

Preferably, the storage unit is further configured to store history data of the noise characteristic value.

Preferably, the monitoring device further comprises a moving unit, wherein the moving unit is used for moving the monitoring device into and out of the car and moving the monitoring device to a monitoring point; the signal sending and receiving unit is also used for controlling the elevator to convey the monitoring device to a monitoring point floor.

Preferably, the monitoring device further comprises at least one acceleration sensor, which converts the vibration signal into an electrical signal for measuring the vibration of the building floor or wall.

Preferably, the acceleration sensor is provided in plurality, and the acceleration sensor is provided on the guide rail bracket or on the hoistway wall near the guide rail bracket.

Preferably, the acceleration sensor is provided near a mounting point of the traction machine or the load beam.

Preferably, the computing unit is further configured to process the electrical signal into which the vibration signal is converted to obtain vibration data; the storage unit is also used for storing the vibration data and the vibration reference value; and the management unit is also used for comparing the vibration data with the vibration reference value, labeling the vibration data exceeding the vibration reference value and the corresponding monitoring points, and generating a monitoring report.

Compared with the prior art, the method can automatically interact with the elevator equipment, automatically carry out noise test at the monitoring point position in the building according to the set monitoring task, and generate the elevator noise report.

Drawings

Fig. 1 is a schematic structural view of a monitoring device for monitoring the noise of an elevator in embodiment 1;

FIG. 2 is a schematic view showing the noise monitoring of the elevator and the monitoring device in the building according to embodiment 1;

fig. 3 is a schematic step diagram of the method of monitoring noise of an elevator of embodiment 1;

fig. 4 is a schematic view of an arrangement of acceleration sensors for monitoring vibration of an elevator in embodiment 3.

Detailed Description

Example 1

As shown in fig. 1, the present embodiment provides a monitoring device for monitoring elevator noise, which includes a noise sensor, a data acquisition unit, a calculation unit, a storage unit, a management unit, and a signal transmission and reception unit. Elevators typically include a control unit, a car that travels up and down a hoistway in a building.

A noise sensor for converting the sound pressure signal into an electrical signal; the data acquisition unit is used for acquiring the electric signal output by the noise sensor; the computing unit is used for processing the electric signals to obtain a noise characteristic value; a storage unit for storing the noise characteristic value and the noise reference value; the management unit is used for comparing the noise characteristic value with the noise reference value, labeling the noise characteristic value exceeding the noise reference value and the corresponding monitoring point, and generating a monitoring report; and the signal sending and receiving unit is used for communicating with the elevator and controlling the elevator to enter the noise monitoring mode or exit the noise monitoring mode. The monitoring device further comprises a mobile unit, i.e. the monitoring device is a mobile monitoring device.

The elevator has a noise monitoring mode. When the elevator enters the noise monitoring mode, it no longer responds to the passenger's call. The elevator control unit can receive the instruction of the mobile monitoring device and automatically operate according to a preset control program.

The noise sensor, the data acquisition unit, the calculation unit, the storage unit, the management unit and the signal sending and receiving unit are all installed on the mobile unit to jointly form a mobile monitoring device, and the mobile monitoring device moves in the building and monitors noise along with the mobile monitoring device. The moving unit is used for moving the monitoring device to enter and exit the lift car and moving the monitoring device to a monitoring point; the signal sending and receiving unit is also used for controlling the elevator to convey the monitoring device to a monitoring point floor.

The data acquisition unit samples the electrical signal of the noise sensor, preferably at a sampling frequency of at least 1000 Hz.

The computing unit is used for processing the data acquired by the noise sensor to obtain a noise characteristic value.

Preferably, the noise characteristic value is a noise equivalent continuous a sound level during up and down running of the elevator.

Preferably, the noise characteristic value may also be a sound pressure level of a noise octave band, including at least sound pressure levels of three octave bands of 63Hz, 125Hz and 250 Hz.

Preferably, during the measurement the elevator is run in such a way that it starts from the bottom floor and runs at normal speed to the top floor and then starts from the top floor and runs at normal speed to the bottom floor as a complete cycle.

Preferably, the elevator is operated continuously for at least 3 up-down periods during the measurement.

The storage unit is used for storing the processed noise characteristic value. The memory also stores a noise reference defined on the basis of standard regulations and also stores noise history data of the elevator being monitored.

The management unit compares the processed noise data with standard regulations and labels the deteriorated noise data and monitoring points.

The management unit may also compare the processed noise data to historical data records and tag the degraded noise data and monitoring points.

The signal transmitting and receiving unit can send instructions to the elevator to enable the elevator to enter or exit a noise monitoring mode, and the elevator can also operate according to a preset control program.

As shown in fig. 2, taking a high-rise building as an example for further explanation, the operation of the elevator causes noise disturbance to building users due to the relationship of the building house structure and the high-speed elevator arranged in the building. Therefore, it is necessary to evaluate the noise of the elevator before the building is put into use, and even after the building is put into normal use, it is necessary to evaluate the noise deterioration of the elevator every 2 years. The elevator of the building is provided with an elevator noise monitoring device.

The noise monitoring task is preferentially arranged at night, so that the normal use of residents in daytime is not influenced, the noise of the night environment is low, and the monitoring result is more accurate. The elevator first enters a noise monitoring mode and no longer responds to external calls. The elevator transports the mobile monitoring device to a first destination floor (e.g., floor 22) to begin performing monitoring tasks. After reaching floor 22, the elevator car automatically returns to the floor and remains on standby.

The mobile monitoring unit travels to a 22 th floor # 1 monitoring point, preferably at a spatial location adjacent to the hoistway, such as 1m from the landing door or 1m from the hoistway wall. After reaching the 1# monitoring point, the monitoring device on the mobile monitoring device is automatically adjusted to a state to be detected, wherein the monitoring device comprises a sensor, a data acquisition unit and the like.

The mobile monitoring device then sends a command to the elevator while beginning to collect noise data. The elevator runs up and down according to a preset control program. Preferably, the elevator travels from the bottom floor to the top floor and then from the top floor to the bottom floor, this loop route being performed 5 times in total.

And finishing data acquisition after the elevator runs. The calculation unit analyzes the acquired data, and preferably, the calculation unit calculates the equivalent continuous A sound level within the running time T of the elevator as the noise characteristic value of the 1# monitoring point. Preferably, the calculating unit further calculates the sound pressure levels of the noise octave bands, including the sound pressure levels of the three octave bands of 63Hz, 125Hz and 250 Hz.

The calculated noise characteristic value and the original data are stored in a memory. The storage unit is also internally stored with a noise reference value based on standard regulations, and the analyzer compares the noise characteristic value calculated by the arithmetic unit with the noise reference value prestored in the memory and records the difference value of the two values in the memory.

Meanwhile, the mobile monitoring device also records the floor of the monitoring point, the position information of the monitoring point, the testing time and other parameters.

After the task is completed, the mobile monitoring device runs to the next monitoring point on the 22 th floor, and the same test flow as the 1# monitoring point is executed.

After the monitoring task of 22 floors is finished, the mobile monitoring device sends an instruction to the elevator, and the elevator is carried to the next floor to be monitored to carry out the monitoring task.

After the monitoring tasks of all floors to be monitored are finished, the mobile monitoring device sends an instruction to the elevator, and the elevator exits the noise monitoring mode.

The mobile monitoring device assembles the data of each floor and monitoring point into a noise monitoring report, and sends the noise monitoring report to the building related management department through a network.

As shown in fig. 3, the method of monitoring elevator noise according to the above process can be summarized as follows: the method comprises the following steps that step S1, the elevator enters a noise monitoring mode; step S2, the monitoring device enters a monitoring state at a monitoring point and collects a noise value; step S3, the elevator automatically runs according to the preset route; step S4, the monitoring device stores the monitoring data; step S5, after the monitoring is finished, the monitoring device generates a monitoring report according to the monitoring data; step S6, the elevator exits the noise monitoring mode.

The monitoring device is a mobile monitoring device. In step S1, after the monitoring device sends a monitoring command to the elevator, the elevator enters a noise monitoring mode.

In step S2, the mobile monitoring device moves to the monitoring point by boarding the elevator. The monitoring points are multiple.

In step S3, the predetermined route is at least one round trip between two terminal layers.

The monitoring point is the position close to the elevator shaft of the elevator waiting hall of the landing. For example, the monitoring point is about 1 meter from the landing door or hoistway wall.

In step S4, the monitoring device stores the floor and the location of the monitoring point.

Example 2

In embodiment 2 the elevator control unit is located in the machine room or car. The data is transferred to the storage unit in a wired or wireless manner.

The noise sensor is arranged at the position of a landing door, preferably, the noise sensor can be arranged at the position of a calling box, so that the noise sensor can measure the noise condition of the running of the elevator. A noise sensor is arranged on each floor to be monitored.

The computing unit is used for processing the noise data collected by the sensor.

Preferably, the calculating unit calculates an equivalent continuous a sound level for the elevator operating time T as the noise characteristic value of the monitoring point. Preferably, the calculating unit further calculates the sound pressure level of the noise octave band, including at least the sound pressure levels of the three octave bands of 63Hz, 125Hz and 250 Hz.

The storage unit is used for storing the calculated noise characteristic value.

The control unit compares the processed noise data with standard regulations and labels the noise data and monitoring points which exceed the standard.

The control unit may also compare the processed noise data to historical data records and tag the degraded noise data and the monitoring points.

The control unit assembles the data of each floor and monitoring point into a noise monitoring report, and sends the noise monitoring report to a building related management department through a network.

Example 3

Most of the elevator noise problems are transmitted along the elevator construction and building structure in the form of vibration, thus creating noise problems, so that the noise state of the elevator can be indirectly obtained by vibration monitoring attached to the vibration transmission path of the elevator.

In embodiment 3, the monitoring device further comprises an acceleration sensor for converting the vibration signal into an electrical signal for measuring the vibration of the floor or wall of the building.

The elevator has a noise monitoring mode, and after entering the noise monitoring mode, the elevator no longer responds to the calling and control of passengers.

The storage unit and the control unit may be provided in a machine room, a landing or a car room. The monitoring device may transmit data to the control unit by wired or wireless means.

As shown in fig. 4, the acceleration sensor is disposed inside the hoistway, and preferably, may be disposed at a position near or on the rail brackets. An acceleration sensor is arranged at each floor position to be monitored. Preferably, the acceleration sensor is also arranged in the machine room, particularly preferably near the mounting point of the traction machine and the bearing beam.

The calculation unit is used for processing the vibration data acquired by the acceleration sensor. Preferably, the calculation unit calculates the vibration levels of the octave bands of the vibration, including the vibration levels of the three octave bands of 63Hz, 125Hz and 250 Hz.

The vibration monitoring step of example 3 is substantially the same as the noise monitoring step of example 1.

The computing unit is also used for processing the electric signal converted from the vibration signal to obtain vibration data.

The storage unit is used for storing the processed vibration data.

And the management unit compares the processed vibration data with a vibration reference value in a standard rule and a rule, and labels the vibration data exceeding the standard and the monitoring points.

The management unit may also compare the processed vibration data with historical data records and tag the degraded vibration data and monitoring points.

And the management unit assembles the data of each floor and each monitoring point into a vibration monitoring report and sends the vibration monitoring report to a building related management department through a network.

Claims

1. A method of monitoring elevator noise, comprising the steps of:

step S1, the elevator enters a noise monitoring mode;

step S2, the monitoring device enters a monitoring state at a monitoring point and collects a noise value;

step S3, the elevator automatically runs according to the preset route;

step S4, the monitoring device stores the monitoring data;

step S5, after the monitoring is finished, the monitoring device generates a monitoring report according to the monitoring data;

step S6, the elevator exits the noise monitoring mode.

2. The method of monitoring elevator noise of claim 1, wherein:

in step S1, after the monitoring device sends a monitoring command to the elevator, the elevator enters a noise monitoring mode.

3. The method of monitoring elevator noise according to claim 1, wherein:

the monitoring device is a mobile monitoring device

4. The method of monitoring elevator noise of claim 3, wherein:

in step S2, the mobile monitoring device moves to the monitoring point by boarding the elevator.

5. The method of monitoring elevator noise of claim 1, wherein:

the monitoring points are multiple.

6. The method of monitoring elevator noise according to claim 1, wherein:

7. The method of monitoring elevator noise of claim 1, wherein:

the monitoring point is a calling box of a hall waiting hall.

8. The method of monitoring elevator noise of claim 1, wherein:

the monitoring point is the position close to the elevator shaft of the elevator waiting hall of the landing.

9. The method of monitoring elevator noise of claim 8, wherein:

the monitoring point is about 1 meter away from the landing door or the shaft wall.

10. The method of monitoring elevator noise of claim 1, wherein:

11. A monitoring device for monitoring elevator noise, comprising:

a noise sensor for converting the sound pressure signal into an electrical signal;

the data acquisition unit is used for acquiring the electric signal output by the noise sensor;

the computing unit is used for processing the electric signals to obtain a noise characteristic value;

a storage unit for storing the noise characteristic value and the noise reference value;

the management unit is used for comparing the noise characteristic value with a noise reference value, labeling the noise characteristic value exceeding the noise reference value and a corresponding monitoring point, and generating a monitoring report;

and the signal sending and receiving unit is used for communicating with the elevator and controlling the elevator to enter the noise monitoring mode or exit the noise monitoring mode.

12. The monitoring device for monitoring noise of an elevator according to claim 11, wherein:

the noise characteristic value is a noise equivalent continuous a sound level during monitoring.

13. The monitoring device for monitoring noise of an elevator according to claim 11, wherein:

the noise characteristic value is the sound pressure level of a noise octave band, and at least comprises the sound pressure levels of three octave bands of 63Hz, 125Hz and 250 Hz.

14. The monitoring device for monitoring noise of an elevator according to claim 11, wherein:

the storage unit is further configured to store historical data of the noise characteristic value.

15. The monitoring device for monitoring noise of an elevator according to claim 11, wherein:

the monitoring device also comprises a moving unit, and the moving unit is used for moving the monitoring device to enter and exit the car and moving the monitoring device to a monitoring point; the signal sending and receiving unit is also used for controlling the elevator to convey the monitoring device to a monitoring point floor.

16. The monitoring device for monitoring noise of an elevator according to claim 11, wherein:

the monitoring device further comprises at least one acceleration sensor, and the acceleration sensor converts the vibration signals into electric signals for measuring the vibration of the building floor or wall.

17. The monitoring device for monitoring noise of an elevator according to claim 16, wherein:

the acceleration sensor is a plurality of, the acceleration sensor sets up on the rail brackets or near the wall of well way on the rail brackets.

18. The monitoring device for monitoring noise of an elevator according to claim 16, wherein:

the acceleration sensor is arranged near the mounting point of the traction machine or the bearing beam.

19. The monitoring device for monitoring noise of an elevator according to claims 16 to 18, wherein:

the computing unit is also used for processing the electric signal converted from the vibration signal to obtain vibration data;

the storage unit is also used for storing the vibration data and the vibration reference value;

and the management unit is also used for comparing the vibration data with the vibration reference value, labeling the vibration data exceeding the vibration reference value and the corresponding monitoring points, and generating a monitoring report.