CN109748170B - Elevator fault warning method, device, equipment and medium - Google Patents
Elevator fault warning method, device, equipment and medium Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
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Abstract
The embodiment of the invention provides an elevator fault warning method, device, equipment and medium. The method comprises the following steps: judging whether the obtained acceleration signal of the elevator car is abnormal or not according to a preset acceleration judgment condition; judging whether the obtained sound signal of the elevator car is abnormal or not according to a preset sound judgment condition; if at least one of the acceleration signal and the sound signal is abnormal, determining a target floor with the abnormality according to the acquired floor detection signal; and if the times of abnormity of the target floor are more than a preset value, determining to trigger an alarm mechanism. Through the scheme, the obtained acceleration signal and the sound signal of the elevator car can be utilized, the state of the elevator and the state of the guide rail are monitored on line, and an early warning mechanism is triggered when the signal abnormality is detected, so that the safety monitoring level of the elevator is improved.
Description
Technical Field
The invention relates to the technical field of equipment fault monitoring, in particular to an elevator fault warning method, device, equipment and medium
Background
At present, in the process of urbanization construction in China, high-rise buildings are important components of city construction. The use of elevators is very common for high-rise buildings. The elevator is an indispensable part of modern buildings, not only bears the transportation function, but also is an important mode for solving the trip of high-rise residents. In actual life, the elevator brings more convenience to people, and meanwhile, the fault problem of the elevator can also seriously affect the safety of people. In recent years, elevator safety accidents, elevator shaking, deformation of elevator sliding rails and the like occur in many places in China, so that great casualties are caused, and the elevator safety problem also becomes one of the most concerned problems in the current society.
Because the elevator needs to run for a long time, the potential safety hazard is very large, which undoubtedly increases the difficulty of elevator safety management. With the improvement of the requirements of people on elevator safety, the current elevator safety monitoring level needs to be improved urgently.
Disclosure of Invention
The embodiment of the invention provides an elevator fault warning method, an elevator fault warning device, elevator fault warning equipment and an elevator fault warning medium, which can monitor the shaking and guide rail states of an elevator on line by using an acquired acceleration signal and an acquired sound signal of an elevator car, and trigger an early warning mechanism when the signal abnormality is detected, so that the safety monitoring level of the elevator is improved.
In a first aspect, an embodiment of the present invention provides an elevator fault warning method, where the method includes:
judging whether the obtained acceleration signal of the elevator car is abnormal or not according to a preset acceleration judgment condition; judging whether the obtained sound signal of the elevator car is abnormal or not according to a preset sound judgment condition;
if at least one of the acceleration signal and the sound signal is abnormal, determining a target floor with the abnormality according to the acquired floor detection signal;
and if the times of the abnormity of the target floor are more than a preset value, determining to trigger an alarm mechanism.
According to the elevator fault warning method, the acceleration signal of the elevator car is obtained according to the following modes:
respectively carrying out standardization processing on acceleration signals in a first direction and a second direction of the elevator car, which are acquired by a triaxial acceleration sensor, so as to obtain standard acceleration signals in the first direction and the second direction;
and filtering the standard acceleration signals in the first direction and the second direction to obtain an acceleration signal of the elevator car.
According to the elevator fault warning method, the acceleration signals of the elevator car in the first direction and the second direction, which are acquired by the three-axis acceleration sensor, are respectively subjected to standardization processing to obtain standard acceleration signals in the first direction and the second direction, and the method comprises the following steps:
respectively calculating the average values of historical acceleration signals of the three-axis acceleration sensor in a first direction and a second direction;
and subtracting the acceleration signals in the first direction and the second direction from the corresponding average values respectively to obtain standard acceleration signals in the first direction and the second direction.
According to the elevator fault warning method, the filtering is performed on the standard acceleration signals in the first direction and the second direction to obtain the acceleration signal of the elevator car, and the method comprises the following steps:
according to a Kalman filtering algorithm, respectively filtering the standard acceleration signals in the first direction and the second direction to obtain Kalman filtering signals in the first direction and the second direction;
and filtering the Kalman filtering signals in the first direction and the second direction according to a mechanical filtering algorithm to obtain an acceleration signal of the elevator car.
According to the elevator fault warning method, the step of judging whether the obtained acceleration signal of the elevator car is abnormal or not according to the preset acceleration judgment condition comprises the following steps:
comparing whether the acceleration value in the acceleration signal exceeds the acceleration standard value or not according to the acceleration standard value of the elevator car;
and when the acceleration value in the acceleration signal exceeds the standard acceleration value, determining that the acceleration signal of the elevator car is abnormal.
According to the elevator fault warning method, whether the obtained sound signal of the elevator car is abnormal or not is judged according to the preset sound judgment condition, and the method comprises the following steps:
converting the sound signal into a pressure signal;
calculating a decibel signal corresponding to the pressure signal, and determining the signal frequency of the decibel signal;
and when the decibel value in the decibel signal is greater than a preset sound decibel threshold value and the signal frequency is greater than a preset signal frequency threshold value, determining that the sound signal is abnormal.
According to the elevator fault warning method, the step of determining the abnormal target floor according to the acquired floor detection signal comprises the following steps:
performing integral operation on the acceleration signal to obtain the running speed of the elevator car;
when the running speed is zero, determining a target floor with abnormality according to a floor detection signal obtained by a photoelectric sensor arranged on the elevator car;
the floor detection signal changes according to the relative position between a blocking piece arranged on the floor leveling and the photoelectric sensor.
In a second aspect, an embodiment of the present invention provides an elevator fault warning device, where the device includes:
the judgment module is used for judging whether the obtained acceleration signal of the elevator car is abnormal or not according to a preset acceleration judgment condition; judging whether the obtained sound signal of the elevator car is abnormal or not according to a preset sound judgment condition;
the determining module is used for determining a target floor with abnormality according to the acquired floor detection signal if at least one of the acceleration signal and the sound signal is abnormal;
and the alarm processing module is used for determining to trigger an alarm mechanism if the frequency of the abnormity of the target floor is greater than a preset value.
In a third aspect, an embodiment of the present invention provides an elevator fault warning device, including: at least one processor, at least one memory, and computer program instructions stored in the memory, which when executed by the processor, implement the method of the first aspect of the embodiments described above.
In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, on which computer program instructions are stored, which, when executed by a processor, implement the method of the first aspect in the foregoing embodiments.
According to the elevator fault warning method, the device, the equipment and the medium provided by the embodiment of the invention, whether the obtained acceleration signal of the elevator car is abnormal or not is judged according to the preset acceleration judgment condition, meanwhile, whether the obtained sound signal of the elevator car is abnormal or not is also judged according to the preset sound judgment condition, and if at least one of the acceleration signal and the sound signal is abnormal, the abnormal target floor is determined according to the obtained floor detection signal; and if the times of abnormity of the target floor are more than a preset value, determining to trigger an alarm mechanism. According to the scheme, the obtained acceleration signal and the sound signal of the elevator car can be utilized, the state of the elevator and the state of the guide rail are monitored on line, and an early warning mechanism is triggered when the signal abnormality is detected, so that the safety monitoring level of the elevator is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 illustrates a flow chart of an elevator fault alerting method provided in accordance with some embodiments of the present invention;
fig. 2 is a graph schematically showing a sound signal of an abnormal sound of the elevator according to the embodiment of the present invention;
fig. 3 is a graph schematically showing an acceleration signal of an elevator in accordance with an embodiment of the present invention, which is shaken;
fig. 4 shows a graph illustrating an acceleration signal of an elevator in which a sway occurs according to another embodiment of the present invention;
fig. 5 illustrates a schematic structural view of an elevator fault warning device provided in accordance with some embodiments of the present invention;
fig. 6 illustrates a schematic diagram of an elevator fault alerting device provided in accordance with some embodiments of the present invention.
Detailed Description
Features and exemplary embodiments of various aspects of the present invention will be described in detail below, and in order to make objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It will be apparent to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Referring to fig. 1, an embodiment of the present invention provides an elevator fault warning method, which includes the following steps: steps S101, S102, S103.
S101: judging whether the obtained acceleration signal of the elevator car is abnormal or not according to a preset acceleration judgment condition; and judging whether the acquired sound signal of the elevator car is abnormal or not according to a preset sound judgment condition.
In a specific implementation, the acceleration signal may be obtained by an accelerometer, for example, the acceleration sensor may be used to obtain a voltage signal within a preset time period, and perform certain preprocessing on the voltage signal, for example, the acceleration sensor itself has a sensitivity, where the sensitivity represents a corresponding relationship between the voltage and the acceleration, and the voltage signal may be converted into the acceleration signal according to the sensitivity. Since there may be horizontal sway during elevator operation, a three-axis acceleration sensor may be employed to obtain voltage signals in multiple directions along a horizontal plane during elevator car operation (e.g., X-axis and Y-axis directions of the three-axis acceleration sensor, etc.). The sound signal may be obtained by a sound sensor, such as a piezoelectric sound sensor or an electromagnetic sound sensor.
The acceleration judgment condition can be used for judging whether the acquired acceleration signal is a corresponding acceleration signal when the elevator operates normally. In some embodiments, the preset acceleration determination condition may be an acceleration standard value, for example, an acceleration standard value in a national standard. In the judgment process, the acceleration value in the acceleration signal can be compared with the acceleration standard value, when the acceleration value in the acceleration signal is greater than the acceleration standard value, the obtained acceleration signal of the elevator car is determined to be abnormal, for example, whether the elevator shakes in the horizontal direction can be judged by judging the acceleration signal of the X axis or the Y axis. For example, referring to fig. 2 and 3, fig. 2 and 3 respectively show graphs of acceleration signals when shaking occurs for an embodiment of the present invention.
The preset sound judgment condition can be used for judging whether the acquired sound signal is a corresponding sound signal when the elevator operates normally. For example, the sound signal is a pressure signal obtained by a piezoelectric sound sensor in response to a sound emitted during operation of the elevator. In some embodiments, when a pressure signal corresponding to sound emitted when the elevator operates is obtained, the pressure signal is converted into a decibel signal, and a decibel value in the decibel signal is compared with a preset sound decibel threshold value, so that whether the sound signal of the elevator car is abnormal or not is judged. In order to prevent misjudgment and in the process of elevator car cloud generation, if abnormal sound occurs, the sound signal corresponding to the abnormal sound is not only higher in sound decibel value, but also very high in sound signal frequency acquired in a short time in the operation process, therefore, after the sound signal is acquired and the pressure signal is converted into the decibel signal, the signal frequency corresponding to the decibel signal is determined, the signal frequency is compared with a preset signal frequency threshold value, the signal frequency is greater than the preset signal frequency threshold value, and the decibel value is greater than the preset sound threshold value, so that the sound signal is abnormal. For example, referring to fig. 4, fig. 4 is a graph showing a sound signal when an abnormal sound occurs in the embodiment of the present invention.
Specifically, an embodiment of the present invention further provides a specific manner of obtaining an acceleration signal of an elevator car, including:
and respectively carrying out standardization processing on the acceleration signals of the elevator car in the first direction and the second direction acquired by the triaxial acceleration sensor to obtain standard acceleration signals in the first direction and the second direction.
And filtering the standard acceleration signals in the first direction and the second direction to obtain an acceleration signal of the elevator car.
In a specific implementation, the first direction and the second direction are perpendicular to each other and perpendicular to the movement direction of the elevator car, i.e. the vertical direction, respectively, i.e. the first direction may be the X-axis direction of the three-axis acceleration sensor, and the second direction may be the Y-axis direction of the three-axis acceleration sensor.
As an example, normalizing the acceleration signal includes: and calculating the average value of the historical acceleration signals in the Z-axis direction as the standard value of the acceleration sensor in the Z-axis direction, and subtracting the standard value of the acceleration sensor in the Z-axis direction from the acceleration signals in the Z-axis direction acquired later to obtain the standard acceleration signals.
In other embodiments, for example, an average value of the acceleration signals in the X-axis direction may be calculated, and the average value may be used as an average value of the acceleration sensors in the X-axis direction, which is subtracted from the acceleration signals in the X-axis direction collected later.
In other embodiments, for example, an average value of the acceleration signals in the Y-axis direction may be calculated, and the average value may be used as an average value of the acceleration sensors in the Y-axis direction, which is subtracted from the acceleration signals in the Y-axis direction collected later.
It should be noted that the acceleration sensor collects voltage signals of the elevator car in a preset time period during the operation process, and converts the voltage signals into acceleration signals, and when an average value of acceleration values in the acceleration signals is calculated, the acceleration signals from a starting point to a certain time point within the preset time period can be adopted as historical acceleration signals, and then the historical acceleration signals are used for calculating the average value, and the rest acceleration signals are used as acceleration signals for monitoring whether the elevator is in fault or not.
In the embodiment of the present invention, the acceleration signal curves of the three-axis acceleration sensor in the respective directions respectively fluctuate up and down around the average value of the respective directions, but the standard acceleration signal curve may fluctuate up and down around the axis by the normalization processing, for example, the standard acceleration signal curve after the normalization processing of the acceleration signal in the X-axis direction fluctuates up and down around the X-axis (i.e., y is 0). According to the embodiment of the invention, the calculated running speed of the elevator car can be further improved by carrying out standardized processing on the acceleration signal.
As an example, a series of filtering algorithms (e.g., kalman filtering algorithms, etc.) may be utilized to filter the standard acceleration signals in the first direction and the second direction, respectively, so as to remove noise, such as environmental noise, background noise, etc., in the standard acceleration signals, and obtain kalman filtering signals in the first direction and the second direction.
A typical example of the kalman filter algorithm is to predict the coordinate position and velocity of an object from a finite set of noisy observation sequences (possibly biased) of the position of the object.
As one example, to further reduce the error, a threshold determination may be performed on the kalman filtered values (i.e., the kalman filtered signals in the first and second directions) using a series of filtering algorithms (e.g., mechanical filtering, etc.), such as zeroing the kalman filtered signals that are less than a preset threshold, to obtain an acceleration signal, which is an acceleration signal without noise.
Therefore, by performing the filtering processing on the standard acceleration signals in the first direction and the second direction a plurality of times using, for example, the kalman filtering algorithm and the mechanical filtering algorithm, it is possible to remove noise in the standard acceleration signals to obtain acceleration signals in which the car is free from noise and errors are caused by factors of the sensor itself.
S102: and if at least one of the acceleration signal and the sound signal is abnormal, determining a target floor with the abnormality according to the acquired floor detection signal.
In a specific implementation, when it is determined that at least one of the acceleration signal and the sound signal is abnormal, a position corresponding to the abnormal signal needs to be determined, and at this time, a target floor where the abnormal signal occurs needs to be determined through the floor detection signal.
Specifically, when a target floor is determined, an integral operation can be performed on an acceleration signal to obtain a speed signal of the elevator car, so that an elevator running state related to the running speed of the elevator is obtained, for example, the speed of the elevator in the running process can be obtained, whether the elevator car stops can be determined according to the running speed of the elevator car, and in combination with a floor detection signal obtained by a photoelectric sensor, the relative position between a baffle plate arranged on the floor flat layer and the photoelectric sensor can be determined to change, so that the target floor with an abnormal signal is obtained, wherein the baffle plate is located on the floor flat layer and does not move along with the movement of the elevator, and the position of the baffle plate is fixed.
It is noted that the acceleration signal that is subjected to the integration operation is an acceleration signal in a third direction, which is parallel to the direction of travel of the elevator car, i.e. the Z-axis.
As an example, the mounting positions of the shutter and the photosensor of the embodiment of the present invention include: the photoelectric sensor can be arranged on the top of the lift car, wherein the photoelectric sensor can be a part with a concave shape, the blocking piece is arranged at each floor level of a building where the elevator is located, it should be noted that the blocking piece is fixed in position and does not move along with the running of the lift car, and when the elevator passes through or stays at any floor, the blocking piece is inserted into a notch of the photoelectric sensor, namely the blocking piece shields the photoelectric sensor, so that the output of the photoelectric sensor changes, and the photoelectric detection signal output of the elevator is collected.
It should be noted that the photosensor is controlled by converting a change in light intensity into a change in an electrical signal. In some embodiments, the photosensor comprises: a groove type photoelectric sensor, a correlation type photoelectric sensor, a reflection type photoelectric switch, and a diffusion reflection type photoelectric switch.
For example, in the foregoing embodiment, a groove-type photosensor, in which a light emitter and a receiver are mounted face-to-face on both sides of a groove, is used as a groove-type photosensor. The light emitter can emit infrared light or visible light, and the light receiver can receive light under the unobstructed condition. However, when the object to be detected passes through the groove, the light is blocked and the photoelectric switch is operated. And outputting a switch control signal to cut off or switch on the load current, thereby completing a control action. The detection distance of the slot switch is limited by the integral structure and is generally only a few centimeters.
For example, when the photosensor is shielded by the shutter, the output of the photosensor is at a high level, and when the photosensor is not shielded by the shutter, the output of the photosensor is at a low level. For example, when the photodetection signal output is 1, it indicates that the photosensor is blocked by the blocking piece, and when the photodetection signal output is 0, it indicates that the photosensor is not blocked by the blocking piece.
And then, according to the speed signal of the elevator and the photoelectric detection signal output of the elevator, the target floor where the elevator fault is located can be judged.
S103: and if the times of abnormity of the target floor are more than a preset value, determining to trigger an alarm mechanism.
In the specific implementation, each time an abnormal signal occurs, a target floor corresponding to the abnormal signal occurs is recorded, and when the frequency of the abnormal signal occurring on the target floor exceeds a preset value, for example, 3 times, an alarm mechanism is set, for example, an audible and visual alarm device can be arranged in an elevator monitoring room, and a worker is reminded to overhaul the elevator.
According to the elevator fault warning method provided by the embodiment of the invention, whether the obtained acceleration signal of the elevator car is abnormal or not is judged according to the preset acceleration judgment condition, meanwhile, whether the obtained sound signal of the elevator car is abnormal or not is also judged according to the preset sound judgment condition, and if at least one of the acceleration signal and the sound signal is abnormal, the abnormal target floor is determined according to the obtained floor detection signal; and if the times of abnormity of the target floor are more than a preset value, determining to trigger an alarm mechanism. According to the scheme, the signals collected by the independent triaxial acceleration sensor and the sound sensor outside the elevator can be adopted, the state of the shaking and guide rail of the elevator is monitored on line, an early warning mechanism is triggered when the signal abnormality is detected, and the safety monitoring level of the elevator is improved.
Based on the same conception, the embodiment of the invention also provides an elevator fault warning device corresponding to the elevator fault warning method, wherein the embodiment of the elevator fault warning device and the embodiment of the elevator fault warning method are in one-to-one correspondence, and the detailed contents can be referred to the embodiment of the elevator fault warning method, and are not described again.
Referring to fig. 5, an embodiment of the present invention further provides an elevator fault warning device, where the device includes: a judging module 501, a determining module 502 and an alarm processing module 503.
The judging module 501 is configured to judge whether the obtained acceleration signal of the elevator car is abnormal according to a preset acceleration judging condition; and judging whether the acquired sound signal of the elevator car is abnormal or not according to a preset sound judgment condition.
A determining module 502, configured to determine, if at least one of the acceleration signal and the sound signal is abnormal, a target floor where the abnormality occurs according to the acquired floor detection signal;
and an alarm processing module 503, configured to determine to trigger an alarm mechanism if the number of times that the target floor is abnormal is greater than a preset value.
In some embodiments, the elevator fault warning device includes an acquisition module 504.
An obtaining module 504, specifically configured to obtain an acceleration signal of the elevator car according to the following manner:
respectively carrying out standardization processing on acceleration signals in a first direction and a second direction of the elevator car, which are acquired by a triaxial acceleration sensor, so as to obtain standard acceleration signals in the first direction and the second direction;
and filtering the standard acceleration signals in the first direction and the second direction to obtain an acceleration signal of the elevator car.
In some embodiments, the obtaining module 504 is specifically configured to:
respectively calculating the average values of historical acceleration signals of a first direction and a second direction of the triaxial acceleration sensor;
and subtracting the acceleration signals in the first direction and the second direction from the corresponding average values respectively to obtain standard acceleration signals in the first direction and the second direction.
In some embodiments, the obtaining module 504 is specifically configured to:
according to a Kalman filtering algorithm, respectively filtering the standard acceleration signals in the first direction and the second direction to obtain Kalman filtering signals in the first direction and the second direction;
and filtering the Kalman filtering signals in the first direction and the second direction according to a mechanical filtering algorithm to obtain an acceleration signal of the elevator car.
In some embodiments, the determining module 501 is specifically configured to:
comparing whether the acceleration value in the acceleration signal exceeds the acceleration standard value or not according to the acceleration standard value of the elevator car;
and when the acceleration value in the acceleration signal exceeds the acceleration standard value, determining that the acceleration signal of the elevator car is abnormal.
In some embodiments, the determining module 501 is specifically configured to:
converting the sound signal into a pressure signal;
calculating a decibel signal corresponding to the pressure signal, and determining the signal frequency of the decibel signal;
and when the decibel value in the decibel signal is greater than the preset sound decibel threshold value and the signal frequency is greater than the preset signal frequency threshold value, determining that the sound signal is abnormal.
In some embodiments, the determining module 502 is specifically configured to:
performing integral operation on the acceleration signal to obtain the running speed of the elevator car;
when the running speed is zero, determining a target floor with abnormality according to a floor detection signal obtained by a photoelectric sensor arranged on an elevator car;
the floor detection signal changes according to the relative position between the blocking piece arranged on the floor leveling and the photoelectric sensor.
In addition, the elevator fault warning method of the embodiment of the invention described in conjunction with fig. 1 can be implemented by an elevator fault warning device. Fig. 6 shows a schematic diagram of a hardware structure of an elevator fault warning device provided by an embodiment of the invention.
The elevator fault warning device may include a processor 601 and a memory 602 having computer program instructions stored therein.
Specifically, the processor 601 may include a Central Processing Unit (CPU), or an Application Specific Integrated Circuit (ASIC), or may be configured as one or more Integrated circuits implementing embodiments of the present invention.
The processor 601 realizes any one of the elevator fault warning methods in the above embodiments by reading and executing computer program instructions stored in the memory 602.
In one example, the elevator fault warning device may also include a communication interface 603 and a bus 610. As shown in fig. 6, the processor 601, the memory 602, and the communication interface 603 are connected via a bus 610 to complete communication therebetween.
The communication interface 603 is mainly used for implementing communication between modules, apparatuses, units and/or devices in the embodiments of the present invention.
The bus 610 includes hardware, software, or both that couple the components of the elevator fault warning device to one another. By way of example, and not limitation, a bus may include an Accelerated Graphics Port (AGP) or other graphics bus, an Enhanced Industry Standard Architecture (EISA) bus, a Front Side Bus (FSB), a Hypertransport (HT) interconnect, an Industry Standard Architecture (ISA) bus, an infiniband interconnect, a Low Pin Count (LPC) bus, a memory bus, a Micro Channel Architecture (MCA) bus, a Peripheral Component Interconnect (PCI) bus, a PCI-Express (PCI-X) bus, a Serial Advanced Technology Attachment (SATA) bus, a video electronics standards association local (VLB) bus, or other suitable bus or a combination of two or more of these. Bus 610 may include one or more buses, where appropriate. Although specific buses have been described and shown in the embodiments of the invention, any suitable buses or interconnects are contemplated by the invention.
In addition, in combination with the elevator fault warning method in the above embodiment, the embodiment of the present invention may be implemented by providing a computer-readable storage medium. The computer readable storage medium having stored thereon computer program instructions; the computer program instructions, when executed by a processor, implement any of the elevator fault alerting methods in the above embodiments.
It is to be understood that the invention is not limited to the specific arrangements and instrumentality described above and shown in the drawings. A detailed description of known methods is omitted herein for the sake of brevity. In the above embodiments, several specific steps are described and shown as examples. However, the method processes of the present invention are not limited to the specific steps described and illustrated, and those skilled in the art can make various changes, modifications and additions or change the order between the steps after comprehending the spirit of the present invention.
The functional blocks shown in the above structural block diagrams may be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, it may be, for example, an electronic circuit, an Application Specific Integrated Circuit (ASIC), suitable firmware, plug-in, function card, or the like. When implemented in software, the elements of the invention are the programs or code segments used to perform the required tasks. The program or code segments may be stored in a machine-readable medium or transmitted by a data signal carried in a carrier wave over a transmission medium or a communication link. A "machine-readable medium" may include any medium that can store or transfer information. Examples of a machine-readable medium include electronic circuits, semiconductor memory devices, ROM, flash memory, Erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, Radio Frequency (RF) links, and so forth. The code segments may be downloaded via computer networks such as the internet, intranet, etc.
It should also be noted that the exemplary embodiments mentioned in this patent describe some methods or systems based on a series of steps or devices. However, the present invention is not limited to the order of the above-described steps, that is, the steps may be performed in the order mentioned in the embodiments, may be performed in an order different from the order in the embodiments, or may be performed simultaneously.
As will be apparent to those skilled in the art, for convenience and brevity of description, the specific working processes of the systems, modules and units described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again. It should be understood that the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the present invention, and these modifications or substitutions should be covered within the scope of the present invention.
Claims (9)
1. An elevator fault warning method, characterized in that the method comprises:
step 1, judging whether the obtained acceleration signal of the elevator car is abnormal or not according to a preset acceleration judgment condition; judging whether the obtained sound signal of the elevator car is abnormal or not according to a preset sound judgment condition;
step 2, if at least one of the acceleration signal and the sound signal is abnormal, determining a target floor with the abnormality according to the acquired floor detection signal;
step 3, if the times of the abnormity of the target floor are larger than a preset value, determining to trigger an alarm mechanism;
wherein, in the step 1, the acceleration signal of the elevator car is obtained according to the following mode:
step 1.1, respectively carrying out standardization processing on acceleration signals in a first direction and a second direction of an elevator car, which are acquired by a triaxial acceleration sensor, so as to obtain standard acceleration signals in the first direction and the second direction;
and 1.2, filtering the standard acceleration signals in the first direction and the second direction to obtain an acceleration signal of the elevator car.
2. The method according to claim 1, characterized in that said step 1.1 comprises:
respectively calculating the average values of historical acceleration signals of the three-axis acceleration sensor in a first direction and a second direction;
and subtracting the acceleration signals in the first direction and the second direction from the corresponding average values respectively to obtain standard acceleration signals in the first direction and the second direction.
3. The method according to claim 1, characterized in that said step 1.2 comprises:
according to a Kalman filtering algorithm, respectively filtering the standard acceleration signals in the first direction and the second direction to obtain Kalman filtering signals in the first direction and the second direction;
and filtering the Kalman filtering signals in the first direction and the second direction according to a mechanical filtering algorithm to obtain an acceleration signal of the elevator car.
4. The method of claim 1, wherein the determining whether the acquired acceleration signal of the elevator car is abnormal according to a preset acceleration determination condition comprises:
comparing whether the acceleration value in the acceleration signal exceeds the acceleration standard value or not according to the acceleration standard value of the elevator car;
and when the acceleration value in the acceleration signal exceeds the standard acceleration value, determining that the acceleration signal of the elevator car is abnormal.
5. The method of claim 1, wherein determining whether the obtained sound signal of the elevator car is abnormal according to a preset sound determination condition comprises:
converting the sound signal into a pressure signal;
calculating a decibel signal corresponding to the pressure signal, and determining the signal frequency of the decibel signal;
and when the decibel value in the decibel signal is greater than a preset sound decibel threshold value and the signal frequency is greater than a preset signal frequency threshold value, determining that the sound signal is abnormal.
6. The method of claim 1, wherein determining a target floor at which an abnormality occurs based on the acquired floor detection signal comprises:
performing integral operation on the acceleration signal to obtain the running speed of the elevator car;
when the running speed is zero, determining a target floor with abnormality according to a floor detection signal obtained by a photoelectric sensor arranged on the elevator car;
the floor detection signal changes according to the relative position between a blocking piece arranged on the floor leveling and the photoelectric sensor.
7. An elevator fault warning device, characterized in that the device comprises:
the judgment module is used for judging whether the obtained acceleration signal of the elevator car is abnormal or not according to a preset acceleration judgment condition; judging whether the obtained sound signal of the elevator car is abnormal or not according to a preset sound judgment condition;
the determining module is used for determining a target floor with abnormality according to the acquired floor detection signal if at least one of the acceleration signal and the sound signal is abnormal;
the alarm processing module is used for determining to trigger an alarm mechanism if the frequency of the abnormity of the target floor is greater than a preset value;
wherein the apparatus further comprises an obtaining module configured to:
respectively carrying out standardization processing on acceleration signals in a first direction and a second direction of the elevator car, which are acquired by a triaxial acceleration sensor, so as to obtain standard acceleration signals in the first direction and the second direction;
and filtering the standard acceleration signals in the first direction and the second direction to obtain an acceleration signal of the elevator car.
8. An elevator fault warning device, comprising: at least one processor, at least one memory, and computer program instructions stored in the memory that, when executed by the processor, implement the method of any of claims 1-6.
9. A computer-readable storage medium having computer program instructions stored thereon, which when executed by a processor implement the method of any one of claims 1-6.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910108534.9A CN109748170B (en) | 2019-01-18 | 2019-01-18 | Elevator fault warning method, device, equipment and medium |
| PCT/CN2020/071979 WO2020147712A1 (en) | 2019-01-18 | 2020-01-14 | Elevator failure alert method, apparatus, and device, and medium |
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| CN201910108534.9A CN109748170B (en) | 2019-01-18 | 2019-01-18 | Elevator fault warning method, device, equipment and medium |
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| CN109748170B (en) * | 2019-01-18 | 2020-05-26 | 西人马帝言(北京)科技有限公司 | Elevator fault warning method, device, equipment and medium |
| CN110342363B (en) * | 2019-07-15 | 2020-09-22 | 王思存 | Method and device for testing safety performance of elevator, terminal equipment and storage medium |
| CN110626901B (en) * | 2019-09-23 | 2021-05-28 | 猫岐智能科技（上海）有限公司 | Equipment operation process segmentation system |
| CN110608910A (en) * | 2019-09-23 | 2019-12-24 | 深圳市兆威机电股份有限公司 | System and method for detecting faults of reciprocating linear motion mechanism |
| CN110759197A (en) * | 2019-09-27 | 2020-02-07 | 西人马(西安)测控科技有限公司 | Elevator fault monitoring method, device, equipment and storage medium |
| CN111664835A (en) * | 2020-01-09 | 2020-09-15 | 中国南方电网有限责任公司超高压输电公司广州局 | Low-power-consumption automatic lifter state monitor for high-altitude operation |
| CN111573488A (en) * | 2020-05-08 | 2020-08-25 | 广东省特种设备检测研究院佛山检测院 | Escalator abnormity detection method, escalator abnormity detection device, escalator abnormity detection equipment and readable storage medium |
| CN111606177B (en) * | 2020-06-04 | 2022-04-12 | 上海三菱电梯有限公司 | Passenger conveying device and fault detection monitoring method and device thereof |
| CN111847176A (en) * | 2020-07-14 | 2020-10-30 | 重庆广播电视大学重庆工商职业学院 | Elevator information acquisition early warning analytic system based on artificial intelligence |
| CN111897266B (en) * | 2020-08-06 | 2021-03-23 | 宁波智明芯电子科技有限公司 | Low-power consumption intelligent boiler controller and boiler thereof |
| CN112193959A (en) * | 2020-09-25 | 2021-01-08 | 浙江新再灵科技股份有限公司 | Method and system for detecting abnormal sound of elevator |
| CN112478975A (en) * | 2020-12-09 | 2021-03-12 | 浙江新再灵科技股份有限公司 | Elevator door fault detection method based on audio features |
| CN112777443A (en) * | 2021-02-07 | 2021-05-11 | 猫岐智能科技（上海）有限公司 | Elevator operation evaluation method, device and computer readable medium |
| CN114162687A (en) * | 2021-10-20 | 2022-03-11 | 华升富士达电梯有限公司 | Safe speed regulation method and device for elevator |
| CN114180429A (en) * | 2021-11-30 | 2022-03-15 | 成都鹏业软件股份有限公司 | Elevator abnormity detection method, detection equipment, acquisition equipment and detection system |
| CN114671313B (en) * | 2022-04-15 | 2024-03-22 | 苏州汇川控制技术有限公司 | Elevator operation detection method, elevator and computer readable storage medium |
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| CN109748170B (en) * | 2019-01-18 | 2020-05-26 | 西人马帝言(北京)科技有限公司 | Elevator fault warning method, device, equipment and medium |
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