CN114743536A - Passenger elevator with automatic silencing lift car - Google Patents
Passenger elevator with automatic silencing lift car Download PDFInfo
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- CN114743536A CN114743536A CN202210265377.4A CN202210265377A CN114743536A CN 114743536 A CN114743536 A CN 114743536A CN 202210265377 A CN202210265377 A CN 202210265377A CN 114743536 A CN114743536 A CN 114743536A
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- 230000030279 gene silencing Effects 0.000 title claims abstract description 159
- 238000012806 monitoring device Methods 0.000 claims abstract description 37
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- 230000001743 silencing effect Effects 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 description 18
- 230000009467 reduction Effects 0.000 description 16
- 238000004458 analytical method Methods 0.000 description 11
- 230000003584 silencer Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 229920000742 Cotton Polymers 0.000 description 6
- 238000013016 damping Methods 0.000 description 4
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- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/02—Cages, i.e. cars
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
- G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
- G10K11/1785—Methods, e.g. algorithms; Devices
- G10K11/17853—Methods, e.g. algorithms; Devices of the filter
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/10—Applications
- G10K2210/113—Elevators
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
- G10K2210/50—Miscellaneous
- G10K2210/503—Diagnostics; Stability; Alarms; Failsafe
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Indicating And Signalling Devices For Elevators (AREA)
Abstract
The invention discloses a passenger elevator with an automatic silencing lift car, which solves the problems that the silencing effect of an elevator silencing device is influenced by time and whether the silencing device fails or not in the prior art, and comprises the following components: the noise acquisition device is used for acquiring a sound signal of the elevator noise and sending the sound signal to the control system; the control system is used for carrying out frequency domain transformation on the collected sound signal of the elevator noise to obtain the frequency of the elevator noise, sending a control signal to the silencing device and judging whether the silencing device fails or not; the silencing device is used for receiving a control signal sent by the control system, sending silencing frequency, offsetting noise frequency and realizing silencing; and the monitoring device is used for monitoring whether the silencing device breaks down or not and sending monitoring data to the control system. The noise generated in the running process of the elevator can be eliminated, and the use feeling of passengers is improved.
Description
Technical Field
The invention relates to the technical field of elevator equipment, in particular to a passenger elevator with an automatic silencing car.
Background
At present, the lift of an elevator car depends on a steel wire rope fixed on the car, the elevator car ascends or descends under the driving of a traction machine, some low-frequency components generated when the traction machine operates can be transmitted to the elevator car through the steel wire rope, and the low-frequency noise makes people feel uncomfortable, so that the comfort of riding the elevator is influenced. Meanwhile, as the speed of the elevator is continuously increased, when the speed of the elevator is increased, the air resistance of the elevator in the well is increased, so that the aerodynamic noise becomes another main source of noise besides the noise generated by the friction of the guide rail roller, the operation of the motor, the vibration and the like. When various noises are transmitted into the car through air or solids, the passenger experience of riding the elevator is reduced sharply. Therefore, how to eliminate the noise of the elevator car and improve the use feeling of passengers is a problem to be solved urgently at present.
At present, a silencing device for an elevator mostly adopts silencing cotton for silencing, and a utility model named as a damping and noise reducing device for a villa elevator is disclosed in 2021, 5 months and 11 days of the Chinese patent office, and the publication number of the utility model is CN 213171005U. The utility model discloses a vibration/noise reduction device for villa elevator, be provided with bloop and amortization cotton on the case of making an uproar through making an uproar, be convenient for through utilizing the cotton noise that produces when absorbing the shock attenuation of amortization, thereby realize the effect of making an uproar that falls, inside through making an uproar case of making an uproar is provided with the cushion socket, be provided with telescopic link and damping spring between cushion socket and the upper padding plate, the telescopic link of being convenient for stretches out and draws back through damping spring, thereby utilize damping spring's elasticity to slowly subtract the impact that the upper padding plate received, through being provided with the bracing piece on the cushion socket, expanding spring and loose axle, be provided with the roating seat between upper padding plate and the loose axle, connecting rod and spliced pole, be convenient for when the upper padding plate receives the impact and push down, utilize the roating seat, connecting rod and spliced pole make two loose axles extrude expanding spring, thereby further realize absorbing effect, vibration/noise reduction's purpose has been reached. However, the invention only uses the silencing cotton to realize noise absorption, but the silencing cotton may age along with the lengthening of the service time, the noise reduction and silencing effect is reduced, and whether the silencing cotton breaks down or not cannot be detected, and the silencing effect cannot be ensured.
Disclosure of Invention
The invention aims to solve the problems that the silencing effect of an elevator silencing device is influenced by time and whether the silencing device fails or not in the prior art, and provides a passenger elevator with an automatic silencing car, which can eliminate noise generated in the operation of the elevator and improve the use feeling of passengers.
In order to achieve the purpose, the invention adopts the following technical scheme: the method comprises the following steps:
the noise acquisition device is used for acquiring noise sound signals inside and outside the elevator car and sending the noise sound signals to the control system;
the control system is used for carrying out frequency domain transformation on the collected noise sound signals inside and outside the elevator car to obtain the noise frequency and the noise amplitude inside and outside the elevator car, sending a control signal to the silencing device and judging whether the silencing device fails or not;
the silencing device is used for receiving the control signal sent by the control system, sending a silencing signal, offsetting noise signals inside and outside the elevator car and realizing silencing;
and the monitoring device is used for monitoring whether the silencing device breaks down or not and sending monitoring data to the control system.
The control system performs frequency domain transformation on the noise sound signals to respectively determine the noise frequency in the elevator car and the noise frequency outside the elevator car; the control system is connected with the silencing device, the control system respectively sends a control signal in the elevator car and a control signal outside the elevator car to the silencing device according to the noise frequency, and the silencing device sends out sound frequency according to the control signal, so that the effects of mutual interference and mutual offset with the noise signal are achieved, and silencing is realized. The monitoring device is respectively connected with the silencing device and the control system, and is used for detecting whether the silencing frequency sent by the silencing device is normal or not, and if a fault is monitored, sending a fault signal to the control system. The invention simultaneously considers the noise inside and outside the elevator car, can dynamically and real-timely monitor the sound inside and outside the elevator car, does not need to change the structure of the car, is convenient to maintain, has long service time and little change of the using effect along with the lapse of time, can better reduce the noise inside the car to the minimum, and greatly improves the comfort level of riding the elevator.
Preferably, the silencer further comprises an alarm device, wherein the alarm device is connected with the control system and used for receiving a control signal of the control system and giving an alarm when the silencer fails. The alarm device is used for prompting a manager that the silencer fails, so that the manager can maintain and replace the silencer in time, and the comfort of passengers taking the elevator is guaranteed to the maximum extent.
Preferably, the control system comprises a sound wave acquisition module, a silencing frequency acquisition module, a volume detection module and a frequency analysis module, wherein the sound wave acquisition module is connected with the silencing frequency acquisition module, the frequency analysis module is respectively connected with the monitoring device and the silencing frequency acquisition module, and the volume detection module is connected with the detection device. And the sound wave acquisition module is used for processing the noise sound signals acquired by the noise acquisition device, analyzing the frequency of the noise sound signals and transmitting the result to the silencing frequency acquisition module. The silencing frequency acquisition module calculates required silencing frequency according to the frequency of the noise sound signal, sends a control signal to the silencing device, and sends a sound signal with corresponding frequency by the silencing device. The frequency analysis module is used for comparing the silencing frequency sent by the silencing device monitored by the monitoring device with the required silencing frequency calculated by the silencing frequency acquisition module, judging whether the frequencies of the silencing frequency and the required silencing frequency are equal, and if not, indicating that the silencing device is in failure and needs to be maintained or replaced. The volume detection module is used for receiving the volume inside the elevator car detected by the monitoring device, comparing the volume with a volume value preset in the volume detection module, judging whether the volume is below a preset value or not, and if so, indicating that all devices work normally; if not, the noise collecting device or the silencing device is in failure, and maintenance and inspection are needed. If the comparison data obtained by the frequency analysis module is normal and the comparison data obtained by the volume detection module is abnormal, the fault is probably appeared in the noise acquisition device.
Preferably, the alarm device comprises an audible and visual alarm and a terminal, and the audible and visual alarm and the terminal are both connected with the control system. And the control system judges whether the silencing device breaks down or not according to the monitoring data of the monitoring device, and if so, the control system sends a control signal to the alarm device, and the audible and visual alarm works to remind a manager. Meanwhile, the control system can also send a control signal to the terminal, fault information is displayed by the terminal, and managers can know the condition of the silencer through the terminal, so that the silencer can be maintained or replaced in time, the silencer can normally operate, and the use feeling of passengers is improved.
Preferably, the monitoring device further comprises a memory for storing data of the noise collecting device, the silencing device and the monitoring device. And the manager can call and check the data conveniently.
Preferably, the elevator noise monitoring device further comprises a filtering device for filtering the sound signal of the elevator noise collected by the noise collecting device. Other noises can possibly occur in the running process of the elevator, and the noises do not exist all the time, have short existence time and can bring interference to the detection result, thereby interfering the silencing frequency sent by the silencing device. Therefore, a filter device is added to filter noise generated in the running process of the elevator.
Preferably, the silencing device comprises a vibration sound generator, and the vibration sound generator is connected with the control system. The silencing devices are distributed inside the elevator car and outside the elevator car, so that noise inside the elevator car and noise outside the elevator car are eliminated respectively, and the use feeling of passengers is improved.
Preferably, the noise collection device comprises sound sensors, and the sound sensors are distributed inside the elevator car and outside the elevator car. The sound sensor positioned inside the elevator car is used for collecting noise inside the elevator car, and the sound sensor positioned outside the elevator car is used for collecting noise inside the elevator car. The specific distribution position and the number of the sound sensors are determined according to specific situations.
Preferably, the monitoring device comprises a decibel tester and a frequency monitoring module, and the decibel tester and the frequency monitoring module are both connected with the control system. The decibel tester is distributed in the elevator car and used for detecting the sound in the elevator car; the frequency monitoring module is used for detecting the frequency of the sound emitted by the silencing device and sending the frequency to the control system.
Therefore, the invention has the following beneficial effects: 1. the flexibility is high, the silencing frequency can be adjusted in real time, and the device is suitable for various elevator cars without changing the car structure; 2. the response speed is high, the noise reduction is obvious, and the passenger experience is improved; 3. the noise reduction effect is not influenced by time, and the reliability is high; 4. the monitoring device is arranged, so that whether the silencing device breaks down or not can be monitored in real time, problems can be found conveniently and timely, and maintenance is carried out.
Drawings
FIG. 1 is a schematic diagram illustrating a system architecture according to an embodiment;
FIG. 2 is a schematic diagram of a system configuration according to the second embodiment;
FIG. 3 is a schematic diagram of a system configuration according to a third embodiment;
in the figure: 1. a noise collection device; 2. a control system; 3. a silencer device; 4. a monitoring device; 5. an alarm device; 6. a memory; 7. and a filtering device.
Detailed Description
The invention is described in further detail below with reference to the following figures and embodiments:
the first embodiment is a passenger elevator with an automatic silencing car, as shown in fig. 1, and includes a noise collecting device 1, a control system 2, a silencing device 3, a monitoring device 4, and an alarm device 5, where the control system is connected to the noise collecting device, the silencing device, the monitoring device, and the alarm device, respectively.
Specifically, the noise collection device is used for collecting noise sound signals inside and outside the elevator car and sending the noise sound signals to the control system. The noise collection device comprises sound sensors which are distributed inside the elevator car and outside the elevator car, collect the noise inside the elevator car and outside the elevator car respectively and transmit the noise to the control system. The specific installation positions of the sound sensors can be the top and the side surface inside the elevator car and the top and the side surface outside the elevator car.
The silencing device is used for receiving a control signal sent by the control system and sending a silencing signal, wherein the frequency and the amplitude of the silencing signal are equal to those of the noise signal, but the phase of the silencing signal deviates by 180 degrees, so that the noise signals in the elevator car and outside the elevator car are offset, and silencing is realized. Silencing device includes the vibration sound production appearance, the vibration sound production appearance distributes inside elevator car and elevator car outside, and the concrete mounted position of vibration sound production appearance is according to specific conditions and decides.
The monitoring device is used for monitoring whether the silencing device breaks down or not and sending monitoring data to the control system. The monitoring device comprises a decibel tester and a frequency monitoring module, wherein the decibel tester and the frequency monitoring module are both connected with the control system. The decibel tester is installed inside elevator car for detect the inside sound of elevator car, the sound that the simulation passenger heard inside the elevator judges whether silencing device has carried out the amortization. The frequency monitoring module is used for monitoring the sound frequency of the silencing device and sending the detected data to the control system.
The control system is used for carrying out frequency domain transformation on collected noise sound signals inside and outside the elevator car, obtaining noise frequency inside the elevator car and noise frequency outside the elevator car, sending a control signal to the silencing device and judging whether the silencing device fails or not. The control system comprises a sound wave acquisition module, a noise frequency acquisition module and a noise control module, wherein the sound wave acquisition module is used for processing the noise sound signals acquired by the noise acquisition device, analyzing the frequency of the noise sound signals and transmitting the result to the noise reduction frequency acquisition module; the silencing frequency acquisition module is used for calculating the silencing frequency and amplitude of a required silencing signal according to the frequency of the noise sound signal and sending a control signal to the silencing device; the frequency analysis module is used for comparing the silencing frequency sent by the silencing device monitored by the monitoring device with the required silencing frequency calculated by the silencing frequency acquisition module and judging whether the frequencies of the two are equal; and the volume detection module is used for receiving the volume inside the elevator car detected by the monitoring device, comparing the volume with the volume value preset in the volume detection module and judging whether the volume is below the preset value.
The alarm device is used for receiving a control signal of the control system and giving an alarm when the silencer fails. The alarm device comprises an audible and visual alarm and a terminal, receives a control signal of the control system, works, gives an alarm and reminds a manager. Simultaneously, the terminal also can show trouble information, and the data that the demonstration is decibel tester or frequency monitoring module goes wrong to managers can know particular case through the terminal, judges whether silencing device breaks down, can in time maintain silencing device or change when silencing device breaks down, guarantees that silencing device can normal operating, improves the passenger and uses the sense.
When the noise reduction device is used, the noise collection device collects noise inside the elevator car and noise outside the elevator car respectively, the collected noise signals are sent to the sound wave acquisition module in the control system, the sound wave acquisition module processes the collected noise signals to obtain sound frequency and amplitude of the noise, the result is sent to the silencing frequency acquisition module, the silencing frequency acquisition module calculates the frequency and amplitude of the silencing signals according to the sound frequency and amplitude of the noise, and sends control signals to the silencing device, the silencing device sends the sound wave signals of the silencing frequency and amplitude to interfere the noise signals, the effects of mutual interference and mutual cancellation of the noise signals are achieved, and silencing is achieved.
In the working process of the silencing device, the decibel tester of the monitoring device detects the sound inside the elevator car and sends the sound to the volume detection module, the volume detection module presets a volume threshold value, if the detected sound value inside the elevator car is larger than a preset value, the silencing is not realized, and the silencing device or the detection device possibly breaks down and needs to be detected and maintained. Meanwhile, the frequency monitoring module of the monitoring device monitors the frequency of the silencing signal and sends the detected frequency to the frequency analysis module, the frequency analysis module simultaneously acquires frequency data obtained by calculation of the silencing frequency acquisition module and compares the calculated frequency of the silencing signal with the monitored actual silencing frequency, if the calculated frequency is consistent with the monitored actual silencing frequency, the silencing device is indicated to normally work, and if the calculated frequency is inconsistent with the monitored actual silencing frequency, the silencing device is indicated to have a fault and needs to be detected and maintained.
If a fault is detected, the control system sends an alarm signal to the alarm device, and an audible and visual alarm in the alarm device starts to work to prompt a manager; meanwhile, the terminal displays that the decibel tester in the monitoring device or the data monitored by the frequency monitoring module fails, so that a manager can judge whether the silencing device fails in advance. The specific situation may be that if the decibel tester monitors that a fault occurs, the frequency monitoring module does not monitor the fault, which indicates that a problem may occur in the noise acquisition device or the control system; if the frequency monitoring module monitors the fault, the fault indicates that the silencing device has a problem.
The second embodiment is a passenger elevator with an automatic silencing car, as shown in fig. 2, and includes a noise collection device 1, a control system 2, a silencing device 3, a monitoring device 4 and a memory 6, where the noise collection device, the silencing device and the monitoring device are all connected to the control system, and the memory is connected to the noise collection device, the monitoring device, the silencing device and the control system respectively. The memory is used for storing the data of the noise acquisition device, the silencing device, the monitoring device and the control system, and is convenient for managers to call and check the data.
When the noise reduction device is used, the noise collection device collects noise inside the elevator car and noise outside the elevator car respectively, the collected noise signals are sent to the control system, the control system processes the collected noise signals to obtain sound frequency and amplitude of the noise, the sound frequency and amplitude of the noise are calculated according to the sound frequency and amplitude of the noise, a control signal is sent to the silencing device, the silencing device sends sound wave signals of the silencing frequency and amplitude, the noise signals are interfered, the effect of mutual interference and mutual offset of the noise signals is achieved, and silencing is achieved. Meanwhile, data generated by the noise acquisition device, the silencing device, the monitoring device and the control system in the operation process are all transmitted to the memory for storage, so that management personnel can check the data conveniently.
In the working process of the silencing device, the decibel tester of the monitoring device detects the sound inside the elevator car and sends the sound to the volume detection module, the volume threshold value is preset by the volume detection module, if the detected sound value inside the elevator car is larger than the preset value, the silencing is not realized, and the silencing device or the detection device possibly breaks down and needs to be detected and maintained. Meanwhile, the frequency monitoring module of the monitoring device monitors the frequency of the silencing signal and sends the detected frequency to the frequency analysis module, the frequency analysis module simultaneously acquires frequency data obtained by calculation of the silencing frequency acquisition module and compares the calculated frequency of the silencing signal with the monitored actual silencing frequency, if the calculated frequency is consistent with the monitored actual silencing frequency, the silencing device is indicated to normally work, and if the calculated frequency is inconsistent with the monitored actual silencing frequency, the silencing device is indicated to have a fault and needs to be detected and maintained.
The third embodiment is a passenger elevator with an automatic silencing car, and as shown in fig. 3, the passenger elevator comprises a noise collecting device 1, a control system 2, a silencing device 3, a monitoring device 4 and a filtering device 7, wherein the noise collecting device is connected with the filtering device, and the filtering device, the silencing device and the monitoring device are all connected with the control system. And the filtering device is used for filtering the sound signal of the elevator noise collected by the noise collecting device and filtering noise generated in the running process of the elevator. The filtering device can be a band-pass filter, and clutter is filtered through a preset noise frequency band.
When the noise reduction device is used, the noise collection device collects noise inside the elevator car and noise outside the elevator car respectively, the collected noise signals are sent to the filtering device, the filtering device filters signals generated in the operation process of the elevator and sends the filtered noise signals to the sound wave acquisition module in the control system, the sound wave acquisition module processes the collected noise signals to obtain sound frequency and amplitude of the noise and sends the result to the noise reduction frequency acquisition module, the noise reduction frequency acquisition module calculates the frequency and amplitude of the noise reduction signals according to the sound frequency and amplitude of the noise and sends control signals to the noise reduction device, the noise reduction device sends the sound wave signals of the noise reduction frequency and amplitude to interfere with the noise signals, the effect of mutual interference and mutual cancellation of the noise signals is achieved, and noise reduction is achieved.
In the working process of the silencing device, the decibel tester of the monitoring device detects the sound inside the elevator car and sends the sound to the volume detection module, the volume detection module presets a volume threshold value, if the detected sound value inside the elevator car is larger than a preset value, the silencing is not realized, and the silencing device or the detection device possibly breaks down and needs to be detected and maintained. Meanwhile, the frequency monitoring module of the monitoring device monitors the frequency of the silencing signal and sends the detected frequency to the frequency analysis module, the frequency analysis module simultaneously acquires frequency data obtained by calculation of the silencing frequency acquisition module and compares the calculated frequency of the silencing signal with the monitored actual silencing frequency, if the calculated frequency is consistent with the monitored actual silencing frequency, the silencing device is indicated to normally work, and if the calculated frequency is inconsistent with the monitored actual silencing frequency, the silencing device is indicated to have a fault and needs to be detected and maintained.
The embodiments described above are merely two preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (9)
1. A passenger elevator with an automatic muffling car, comprising:
the noise collecting device is used for collecting noise sound signals inside and outside the elevator car and sending the noise sound signals to the control system;
the control system is used for carrying out frequency domain transformation on the collected noise sound signals inside and outside the elevator car to obtain the noise frequency and the noise amplitude inside and outside the elevator car, sending a control signal to the silencing device and judging whether the silencing device fails or not;
the silencing device is used for receiving the control signal sent by the control system, sending a silencing signal, offsetting noise signals inside and outside the elevator car and realizing silencing;
and the monitoring device is used for monitoring whether the silencing device breaks down or not and sending monitoring data to the control system.
2. The passenger elevator with automatic silencing cage as set forth in claim 1, further comprising an alarm device for receiving control signal of the control system and giving an alarm when the silencing device is out of order.
3. The passenger elevator with the automatic silencing car as claimed in claim 1, wherein the control system comprises a sound wave obtaining module, a silencing frequency obtaining module, a volume detecting module and a frequency analyzing module, the sound wave obtaining module is connected with the silencing frequency obtaining module, the frequency analyzing module is respectively connected with the monitoring device and the silencing frequency obtaining module, and the volume detecting module is connected with the detecting device.
4. The passenger elevator with the automatic silencing car according to claim 2, wherein the alarm device comprises an audible and visual alarm and a terminal, and the audible and visual alarm and the terminal are both connected with the control system.
5. The passenger elevator with automatic silencing car of claim 1, further comprising a memory for storing data of the noise collection device, the silencing device, the monitoring device and the control system.
6. The passenger elevator with the automatic silencing car according to claim 1 or 2, further comprising a filtering device for filtering noise sound signals inside and outside the elevator car collected by the noise collecting device.
7. A passenger elevator with an automatic silencing car according to claim 1 or 3, characterized in that the silencing device comprises a vibration sounder, which is connected to the control system.
8. A passenger elevator with an automatically muffling car as set forth in claim 1 or 3, wherein said noise collection device comprises sound sensors distributed inside the elevator car and outside the car.
9. The passenger elevator with the automatic silencing car as recited in claim 1 or 3, wherein the monitoring device comprises a decibel tester and a frequency monitoring module, and both the decibel tester and the frequency monitoring module are connected with the control system.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210265377.4A CN114743536A (en) | 2022-03-17 | 2022-03-17 | Passenger elevator with automatic silencing lift car |
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| CN202210265377.4A CN114743536A (en) | 2022-03-17 | 2022-03-17 | Passenger elevator with automatic silencing lift car |
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| CN202210265377.4A Pending CN114743536A (en) | 2022-03-17 | 2022-03-17 | Passenger elevator with automatic silencing lift car |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101211558A (en) * | 2006-12-28 | 2008-07-02 | 海尔集团公司 | Active noise reduction method and device |
| WO2010033103A1 (en) * | 2008-09-19 | 2010-03-25 | Otis Elevator Company | Actively controlled noise cancellation system for an elevator cab |
| CN104978894A (en) * | 2015-06-30 | 2015-10-14 | 重庆永高塑业发展有限公司 | Silencing pipe effect demonstration equipment |
| CN107055237A (en) * | 2017-01-11 | 2017-08-18 | 广州广日电梯工业有限公司 | The Active noise control system and method for a kind of express elevator |
| CN208651290U (en) * | 2018-09-11 | 2019-03-26 | 大连明日环境发展有限公司 | A kind of muffler |
| CN211654299U (en) * | 2019-12-27 | 2020-10-09 | 广州铁路职业技术学院（广州铁路机械学校） | Device mounted on high-speed rail seat and used for shielding passenger noise |
-
2022
- 2022-03-17 CN CN202210265377.4A patent/CN114743536A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101211558A (en) * | 2006-12-28 | 2008-07-02 | 海尔集团公司 | Active noise reduction method and device |
| WO2010033103A1 (en) * | 2008-09-19 | 2010-03-25 | Otis Elevator Company | Actively controlled noise cancellation system for an elevator cab |
| CN104978894A (en) * | 2015-06-30 | 2015-10-14 | 重庆永高塑业发展有限公司 | Silencing pipe effect demonstration equipment |
| CN107055237A (en) * | 2017-01-11 | 2017-08-18 | 广州广日电梯工业有限公司 | The Active noise control system and method for a kind of express elevator |
| CN208651290U (en) * | 2018-09-11 | 2019-03-26 | 大连明日环境发展有限公司 | A kind of muffler |
| CN211654299U (en) * | 2019-12-27 | 2020-10-09 | 广州铁路职业技术学院（广州铁路机械学校） | Device mounted on high-speed rail seat and used for shielding passenger noise |
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Effective date of registration: 20221103 Address after: No. 337, Tashan Road, Fotang Town, Yiwu City, Jinhua City, Zhejiang Province 322000 Applicant after: Witte Elevator Co.,Ltd. Address before: 322000 333 Tashan Road, Fotang Town, Yiwu City, Jinhua City, Zhejiang Province Applicant before: ZHEJIANG WEITE ELEVATOR CO.,LTD. |