CN-116873682-B - Elevator operation monitoring method and system

CN116873682BCN 116873682 BCN116873682 BCN 116873682BCN-116873682-B

Abstract

The invention discloses an elevator operation monitoring method and system, wherein the technical scheme of the invention skillfully monitors working parameters and working components in elevator operation, when an abnormality occurs, an abnormal operation record is generated to record working instructions and working parameters when the elevator is abnormal, when the elevator is idle, the abnormal operation record is used as a reference for elevator operation self-checking, the abnormal operation record is used for monitoring and acquiring relevant monitoring data again by restoring the working condition when the elevator is abnormal, so that the abnormal condition reproduction is realized as much as possible, the reference is provided for subsequent elevator maintenance or operation intervention, for some occasional abnormalities, if the abnormal operation record can be restored and reproduced for many times under the specific parameters, the safe operation of the elevator is obviously influenced, a practical and reliable reference basis can be provided for whether the elevator is suspended to be used, and if the abnormal operation or clamping stagnation with small safety influence is provided for maintenance personnel, a good maintenance reference is provided for maintenance personnel, and targeted key maintenance is realized.

Inventors

ZHANG YUAN
ZHOU DANLE
JIANG CHAO
SHEN LING

Assignees

江苏省特种设备安全监督检验研究院

Dates

Publication Date: 20260505
Application Date: 20230717

Claims (10)

1. An elevator operation monitoring method for operation monitoring of a car elevator, characterized in that it comprises: S01, acquiring the working running state of the elevator according to a preset frequency, and monitoring working parameters and working components of the elevator to generate working parameter monitoring data and component monitoring data, wherein the working parameter monitoring data and the component monitoring data are recorded with corresponding generated time points; s02, acquiring part monitoring data, extracting a monitoring item from the part monitoring data, comparing the monitoring item with preset reference data, outputting a comparison result, acquiring a time point when the monitoring item is abnormal when the comparison result points to abnormal operation, acquiring a corresponding working instruction according to the time point and acquiring a corresponding working parameter from the working parameter monitoring data, and generating an abnormal operation record; S03, determining that the elevator is in an idle state or a service state according to the working parameter monitoring data, controlling the elevator to operate according to a working instruction and a working parameter corresponding to the abnormal operation record when the elevator is in the idle state, and simultaneously recording the working parameter in the operation process and monitoring the working part in real time to generate self-checking working parameter monitoring data and self-checking part monitoring data; s04, acquiring self-checking working parameter monitoring data and/or self-checking component monitoring data, judging the self-checking working parameter monitoring data and/or the self-checking component monitoring data according to preset conditions, and generating abnormal operation information and/or performing operation intervention on the elevator when the self-checking working parameter monitoring data and/or the self-checking component monitoring data do not meet preset requirements.
2. The elevator operation monitoring method according to claim 1, wherein in S01, the operation parameter monitoring data includes one or more of a rotation speed of a motor, an operation current, an operation temperature of a machine room in which the motor is located, a load of an elevator car, a lifting speed, an acceleration, and an opening and closing condition of a car door; The component monitoring data comprises more than one of elevator car position data, car vibration data, car internal temperature data, guide rail vibration data, car internal audio monitoring data, elevator shaft audio monitoring data and motor audio monitoring data.
3. The elevator operation monitoring method according to claim 2, further comprising: a01, image acquisition is carried out on a preset space inside the elevator car according to preset acquisition frequency, image monitoring data are generated, the image monitoring data record corresponding generated time points, and the image acquisition area covers the car door and the car floor of the elevator; A02, acquiring image monitoring data, extracting image frames according to preset conditions, and comparing the image frames with preset reference frames to acquire an image comparison result; A03, outputting personnel retention, article retention, unmanned state or personnel abnormality information according to preset conditions according to the image comparison result.
4. The elevator operation monitoring method according to claim 3, wherein in S03, the method of determining an elevator idle state based on the operation parameter monitoring data comprises one of: (1) Acquiring working parameter monitoring data, and determining that the elevator is in an idle state when the rotating speed of the motor in the working parameter monitoring data is zero, the load of the elevator car is smaller than a preset value, the lifting speed of the elevator car is equal to zero, the car door is in a closed state and the duration of the corresponding working parameter reaches a preset threshold value; (2) Acquiring working parameter monitoring data, and determining that the elevator is in an idle state when the rotating speed of the motor in the working parameter monitoring data is zero, the load of the elevator car is smaller than a preset value, the lifting speed of the elevator car is equal to zero, the car door is closed and the time is preset idle; (3) And acquiring working parameter monitoring data and image monitoring data, and determining that the elevator is in an idle state when the rotating speed of the motor in the working parameter monitoring data is zero, the load of the elevator car is smaller than a preset value, the lifting speed of the elevator car is equal to zero, the car door is in a closed state and the image monitoring data points to the inside of the car to be in an unmanned state.
5. The elevator operation monitoring method according to claim 3, wherein a02 comprises: A021, acquiring image monitoring data and working parameter monitoring data, and extracting image frames of the image monitoring data according to a preset time interval or through a video key frame extraction algorithm when the rotating speed of a motor in the working parameter monitoring data is zero, the load of an elevator car is smaller than a preset value, the lifting speed of the elevator car is equal to zero and a car door is in a closed state, so as to acquire image frames; s022, comparing the extracted image frame with a reference frame with an empty car through an image comparison algorithm to obtain an image comparison result pointing to the image difference; a03 includes: a031, obtaining the image comparison result, Outputting unmanned state information when the difference pointed by the image comparison result is smaller than a preset range, When the difference pointed by the image comparison result is larger than a preset range, carrying out contour positioning and extraction on the difference region, and leading the difference region into a trained detection neural network for identification so as to output a detection result pointed to a person or an article; a032, obtaining the detection result, Outputting article retention information when only articles are in the car in the detection result; When people and articles are in the directional car in the detection result, the gesture of the people is judged, when the judgment result is that the people fall down, abnormal information of the people is output, and otherwise, the information of personnel retention is output.
6. The elevator operation monitoring method according to claim 3, wherein S03 further comprises performing a five-party call communication status self-test on the elevator according to a preset self-test time when the elevator is in an idle state, comprising: b01, the duty room communication host sequentially carries out communication calls on the elevator car call device, the machine room call device, the car roof call device and the pit call device according to a preset self-checking time sequence, when the machine room call device, the car roof call device, the pit call device and the elevator car call device receive communication call signals of the duty room communication host, the communication is automatically accessed after a first preset duration is kept, then the communication is ended after the communication preset duration is established so as to complete signal communication feedback, and when the communication call of the duty room communication host is larger than a second preset duration and is not connected, communication abnormal information corresponding to the machine room call device, the car roof call device, the pit call device and the elevator car call device is generated and output; b02, the machine room communicator, the car top communicator, the pit communicator and the elevator car communicator carry out communication call on the duty room communication host according to the preset self-checking time sequence, and after the call is accessed, the power amplifier presets audio data, when the duty room communication host receives a communication call signal, the duty room communication host automatically accesses communication immediately, acquires communication information and carries out audio identification on the communication information, Ending communication after establishing communication for a preset time period when the preset audio data are identified, so as to complete signal communication feedback, otherwise, maintaining communication establishment; when the communication host of the duty room does not receive the communication call of the machine room communicator, the car top communicator, the pit communicator and the elevator car communicator at a preset self-checking time node, generating and outputting communication abnormality information corresponding to the machine room communicator, the car top communicator, the pit communicator and the elevator car communicator; And B03, when the communication information is identified as preset audio data, comparing the communication information acquired by the communication host computer of the duty room with the audio waveform of the preset audio data to judge whether the communication information is distorted in audio, and when distortion exists, outputting call quality distortion information and outputting the call quality distortion information.
7. The elevator operation monitoring method according to claim 4, wherein in S02, the operation command includes an operation command for changing the elevator from a parking state of an initial floor to a lifting operation state, then changing from a closed state to an open state after decelerating to a target floor reached by parking, and an operation command for changing an elevator car door from a closed state to a lifting operation, then changing the elevator car from a parked state to a lifting operation, then changing the elevator car door from a closed state to an open state, and then changing the corresponding operation command to a closed state to a periodic command, which is associated with time period information corresponding to an action performed by an execution target; S03, controlling the elevator to take a working instruction corresponding to the abnormal operation record as a periodic instruction; S03 includes: s031, determining that the elevator is in an idle state or a service state according to the working parameter monitoring data and/or the image monitoring data; s032, acquiring an elevator state, when the elevator is in an idle state, acquiring a time point or a time interval corresponding to the abnormal operation record of the elevator according to the abnormal operation record, and then matching the time point or the time interval with a periodic instruction of the elevator operation to acquire the periodic instruction covering the abnormal operation record time; S033, running by controlling the elevator according to a periodic instruction corresponding to the abnormal running record and working parameters, wherein the working parameters comprise at least one of the rotating speed of the motor, the lifting speed, the acceleration and the opening and closing state of the elevator car door corresponding to the abnormal running record; S034, recording working parameters in the elevator operation process in real time and monitoring working parts to generate self-checking working parameter monitoring data and self-checking part monitoring data, wherein the self-checking working parameter monitoring data comprise more than one of rotating speed of a motor, working current, working temperature of a machine room where the motor is located, load of an elevator car, lifting speed, acceleration and opening and closing conditions of a car door, and the self-checking part monitoring data comprise more than one of elevator car position data, car vibration data, car internal temperature data, guide rail vibration data, car internal audio monitoring data, elevator shaft audio monitoring data and motor audio monitoring data.
8. The elevator operation monitoring method according to claim 1, characterized in that in S04 the way of operating the elevator comprises one of the following: (1) Adjusting a lifting speed threshold of the elevator car; (2) Adjusting an acceleration threshold of the elevator car; (3) Adjusting the opening and closing speed of the elevator car door; (4) The elevator is deactivated.
9. Elevator operation monitoring system, characterized in that it comprises: The operation monitoring module comprises an operation monitoring unit and a component monitoring unit, wherein the operation monitoring unit is used for acquiring the operation state of the elevator according to a preset frequency, monitoring the operation parameters of the elevator to generate operation parameter monitoring data, and the component monitoring unit is used for monitoring the operation components of the elevator to generate component monitoring data, wherein the operation parameter monitoring data and the component monitoring data are recorded with corresponding generated time points; The image acquisition module is used for acquiring images of a preset space inside the elevator car according to preset acquisition frequency to generate image monitoring data, the image monitoring data record corresponding generated time points, and the image acquisition area covers the car door and the car floor of the elevator; The data judging module is used for acquiring the monitoring data of the component, extracting the monitoring items from the monitoring data, comparing the monitoring data with preset reference data, outputting a comparison result, acquiring a time point when the monitoring items are abnormal when the comparison result points to abnormal operation, acquiring corresponding working instructions according to the time point and working parameters corresponding to the working instructions from the working parameter monitoring data, and generating an abnormal operation record; The state judging module is used for determining whether the elevator is in an idle state or a service state according to the working parameter monitoring data and/or the image monitoring data; The self-checking module is used for determining that the elevator is in an idle state or a service state according to the working parameter monitoring data, controlling the elevator to operate according to the working instruction and the working parameter corresponding to the abnormal operation record when the elevator is in the idle state, and simultaneously recording the working parameter in the operation process and monitoring the working part in real time to generate self-checking working parameter monitoring data and self-checking part monitoring data; the early warning module is used for acquiring self-checking working parameter monitoring data and/or self-checking component monitoring data, judging the self-checking working parameter monitoring data and/or the self-checking component monitoring data according to preset conditions, and generating abnormal operation information and/or performing operation intervention on the elevator when the self-checking working parameter monitoring data and/or the self-checking component monitoring data do not meet the preset requirements.
10. The elevator operation monitoring system of claim 9, further comprising: the image judging unit is used for acquiring image monitoring data, extracting image frames according to preset conditions, comparing the image frames with preset reference frames to acquire image comparison results, and outputting personnel retention, article retention, unmanned state or personnel abnormality information according to the preset conditions according to the image comparison results.

Description

Elevator operation monitoring method and system Technical Field The invention relates to the technical field of elevator monitoring, in particular to an elevator operation monitoring method and system. Background The elevator is used as common equipment for people to go upstairs and downstairs daily, the safety of the elevator directly influences the personal safety of users, the elevator is listed as special equipment, in order to improve the use reliability and safety of the elevator, daily maintenance is required to be carried out regularly after the elevator is put into use to avoid the expansion of some abnormal conditions, the safety and reliability of the elevator are important because the elevator can be used as a daily upstairs and downstairs tool for people to use frequently, the elevator can be automatically self-checked and simultaneously self-checked when the elevator is abnormal because of the irregular characteristic of the sporadic abnormal conditions, such as abnormal sound, abnormal vibration and the like, passengers can be carried in the elevator carriage when the elevator is abnormal, and the possibility of no-load is also low when the elevator is abnormal, so that the elevator is used as a daily upstairs and downstairs tool for people frequently, the safety and the reliability of the elevator can be paid attention, and the elevator can be automatically checked when the elevator is abnormal, and the safety of the elevator can be greatly improved when the elevator is used normally. Disclosure of Invention In view of the above, the invention aims to provide an elevator operation monitoring method and system which are reliable in implementation, flexible in application, humanized and good in result reference. In order to achieve the technical purpose, the invention adopts the following technical scheme: an elevator operation monitoring method for operation monitoring of a car elevator, comprising: S01, acquiring the working running state of the elevator according to a preset frequency, and monitoring working parameters and working components of the elevator to generate working parameter monitoring data and component monitoring data, wherein the working parameter monitoring data and the component monitoring data are recorded with corresponding generated time points; s02, acquiring part monitoring data, extracting a monitoring item from the part monitoring data, comparing the monitoring item with preset reference data, outputting a comparison result, acquiring a time point when the monitoring item is abnormal when the comparison result points to abnormal operation, acquiring a corresponding working instruction according to the time point and acquiring a corresponding working parameter from the working parameter monitoring data, and generating an abnormal operation record; S03, determining that the elevator is in an idle state or a service state according to the working parameter monitoring data, controlling the elevator to operate according to a working instruction and a working parameter corresponding to the abnormal operation record when the elevator is in the idle state, and simultaneously recording the working parameter in the operation process and monitoring the working part in real time to generate self-checking working parameter monitoring data and self-checking part monitoring data; s04, acquiring self-checking working parameter monitoring data and/or self-checking component monitoring data, judging the self-checking working parameter monitoring data and/or the self-checking component monitoring data according to preset conditions, and generating abnormal operation information and/or performing operation intervention on the elevator when the self-checking working parameter monitoring data and/or the self-checking component monitoring data do not meet preset requirements. As a possible implementation manner, in the scheme S01, the operation parameter monitoring data includes more than one of a rotation speed of the motor, an operation current, an operation temperature of a machine room where the motor is located, a load of an elevator car, a lifting speed, an acceleration, and an opening and closing condition of a car door. As a possible implementation mode, the component monitoring data comprises more than one of elevator car position data, car vibration data, car internal temperature data, guide rail vibration data, car internal audio monitoring data, elevator shaft audio monitoring data and motor audio monitoring data. As a preferred implementation option, preferably, the solution further includes: a01, image acquisition is carried out on a preset space inside the elevator car according to preset acquisition frequency, image monitoring data are generated, the image monitoring data record corresponding generated time points, and the image acquisition area covers the car door and the car floor of the elevator; A02, acquiring image monitoring data, extracting image frames according to