Automatic monitoring and alarming system for traction force of elevator

Abstract

The invention relates to the technical field of elevators, in particular to an automatic monitoring and alarming system for elevator traction force, and solves the problems that in the prior art, due to the complexity of the elevator operation environment, the automatic monitoring and alarming system for the traction force may be disturbed, the monitoring precision of the automatic monitoring and alarming system for the traction force may still be limited to a certain extent, and the elevator traction force cannot be monitored. Therefore, the system can not accurately judge whether the traction force is abnormal or not, so that the reliability of the system is influenced. An automatic monitoring and alarming system for traction force of an elevator comprises data acquisition, data processing and analysis, anomaly detection, alarm triggering, information transmission and recording, emergency response and fault processing. According to the system, the change of the traction force can be monitored in real time, an alarm is rapidly triggered under the abnormal condition, elevator accidents such as falling and top rushing caused by insufficient or overlarge traction force are effectively prevented, the safety of elevator operation is remarkably improved, and the system can find potential progressive faults in advance through trend analysis and fault mode recognition.

Description

Technical Field

[0001] The present invention relates to the technical field of elevators, and in particular to an automatic monitoring and alarm system for elevator traction force. Background Art

[0002] Elevators, as an efficient and convenient means of vertical transportation, have been deeply integrated into every corner of modern society and have become an indispensable part of high-rise buildings. It consists of one or more closed cars, drive systems, control systems, safety protection systems, and shaft structures, which work together to achieve vertical transportation of people and goods. The car is the part of the elevator that directly carries passengers or goods. It is usually designed with a comfortable interior environment, including lighting, ventilation, control panels, and emergency call buttons. The size and load capacity of the car are determined according to the needs of use, ranging from small home elevators to large commercial freight elevators. The drive system of the elevator is the core of its movement, and there are two main types: electric drive and hydraulic drive. Electric drive drives the wire rope or chain through the motor, which then pulls the car up and down in the shaft; hydraulic drive uses the pressure generated by the hydraulic pump to push the piston, and transmits power through the hydraulic oil to raise and lower the car. Electric drive is more common because of its high efficiency and low maintenance cost. The control system is responsible for receiving the passenger's operating instructions (such as floor buttons), and based on this information and the current position and operating status of the elevator, it calculates the optimal operation strategy through complex algorithms and controls the drive system to perform corresponding actions. Modern elevators also incorporate intelligent technologies such as voice control and remote monitoring, which improve user experience and management efficiency. Anti-fall device: such as the speed limiter-safety clamp system. When the elevator falls at an excessive speed, the speed limiter triggers the safety clamp to make the car emergency brake on the guide rail. Buffer: located at the bottom of the shaft, used to absorb impact energy when the car falls accidentally, reducing damage to passengers and equipment. Door locks and door interlocks: ensure that the elevator door will not open before the car reaches the designated floor to prevent passengers from falling into the shaft. Emergency lighting and communication: provide lighting and means of communication with the outside world in the event of a power outage or failure. The shaft is the track space where the elevator runs. Its design needs to consider factors such as the elevator's travel height, car size, and safety distance. Guide rails are installed in the shaft to provide stable guidance and support for the car. The long-term safe operation of the elevator is inseparable from regular maintenance and care. Our professional maintenance team will regularly conduct comprehensive inspections of elevators in accordance with national or industry standards, including electrical systems, mechanical components, safety devices, etc., to promptly identify and address potential problems and ensure that the elevator is always in good condition.

[0003] In the prior art, due to the complexity of the elevator operating environment, the traction force automatic monitoring and alarm system may be subject to various interferences, resulting in false alarms or missed alarms. Although modern sensor technology is constantly developing, in actual applications, the monitoring accuracy of the traction force automatic monitoring and alarm system may still be subject to certain limitations, which may cause the system to be unable to accurately determine whether the traction force is abnormal, thereby affecting its reliability. The complexity of the system increases maintenance costs: the traction force automatic monitoring and alarm system usually includes multiple sensors, controllers, communication modules and other components, which increases the complexity of the system and the maintenance cost accordingly. If the maintenance personnel do not have the corresponding professional knowledge and skills, the system may not be able to operate normally or the fault may be difficult to eliminate in time. Many elevator alarm systems rely on backup batteries to provide power support during power outages. However, if the backup batteries are not properly managed, the system may fail at critical moments. Due to its dependence on electricity, the traction force automatic monitoring and alarm system usually requires a stable power supply to work properly. In the event of a power outage or power fluctuation, the system may be affected or even fail. Summary of the invention

[0004] The purpose of the present invention is to provide an elevator traction force automatic monitoring and alarm system, which solves the problem in the prior art that due to the complexity of the elevator operating environment, the traction force automatic monitoring and alarm system may be subject to various interferences, resulting in false alarms or missed alarms. Despite the continuous development of modern sensor technology, the monitoring accuracy of the traction force automatic monitoring and alarm system may still be subject to certain limitations, which may cause the system to be unable to accurately determine whether the traction force is abnormal, thereby affecting its reliability.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] An automatic monitoring and alarm system for elevator traction force includes data collection, data processing and analysis, anomaly detection, alarm triggering, information transmission and recording, emergency response and fault handling. The system collects relevant data of traction force in real time through sensors installed on the elevator traction system. The sensors can monitor key parameters such as the tension of the traction rope, the operating status of the traction machine and the moving speed of the car. The collected data is transmitted to the control center of the system. The data analysis results show that the traction force is abnormal, and the system will trigger the abnormality detection mechanism. Once it is confirmed that the traction force is abnormal and the alarm condition is met, the system will immediately trigger the alarm mechanism. The system will transmit the alarm information to the elevator management personnel or monitoring center through a wired or wireless network. After receiving the alarm information, the management personnel should immediately take measures to respond to the emergency.

[0007] Preferably, data acquisition and sensor deployment are performed by installing high-precision sensors at key locations of the elevator traction system, such as the traction wheel, traction rope, and car top. These sensors include but are not limited to tension sensors, velocity sensors, and acceleration sensors. Real-time data acquisition is performed by the sensors continuously collecting data at a set frequency to ensure that any instantaneous changes in traction force can be captured. Data preprocessing is performed by performing preliminary processing, filtering, and calibration on the raw data at the sensor end or the control center.

[0008] Preferably, data processing and analysis, data reception: the control center receives data from each sensor by wired or wireless means, algorithm analysis: using advanced algorithms, such as machine learning models, statistical analysis, etc., to conduct in-depth analysis of the received data, which includes calculating the statistical indicators such as the average value, standard deviation, and change trend of the traction force, and comparing them with the preset safety range, threshold setting: according to the specifications of the elevator, the use environment, the manufacturer's recommendations, etc., set a reasonable traction force threshold value. When the actual traction force exceeds these thresholds, it is considered abnormal, abnormality detection, multi-level warning, the system sets multiple warning levels, such as slight abnormality, moderate abnormality, and severe abnormality. According to the degree to which the traction force deviates from the normal value, the corresponding level of warning is triggered, trend analysis, in addition to the instantaneous value comparison, the system also analyzes the long-term change trend of the traction force and identifies potential progressive faults, fault mode recognition: using historical data and machine learning technology, the system attempts to identify specific fault modes, such as traction rope wear, traction wheel slippage, etc.

[0009] Preferably, alarm triggering, instant alarm: once the traction force abnormality is detected to reach or exceed the preset threshold, the system immediately triggers the alarm mechanism, alarm mode: the alarm mode is diverse, including but not limited to the sound and light alarm inside the elevator, the error code displayed on the control panel, the sending of SMS or email notifications to the management personnel, the display of alarm information in the remote monitoring center, etc., alarm information content: the alarm information should include key information such as the elevator number, location, alarm time, abnormality type, and recommended measures.

[0010] Preferably, information transmission and recording, data transmission: alarm information is quickly transmitted to the designated recipient through a stable communication network, data recording: the system automatically records all alarm events and their related data, including traction data before and after the alarm, elevator operating status, and number of passengers, forming a detailed alarm log, data security: ensure data security during transmission and storage, and use encryption technology to prevent data leakage.

[0011] Optimized, emergency response and fault handling, emergency braking: in severe abnormal situations, the system can automatically trigger the elevator emergency braking to ensure the safety of passengers, passenger evacuation: passengers are evacuated in an orderly manner through the elevator broadcasting system or the guidance of management personnel, maintenance dispatch: according to the alarm information, professional maintenance personnel are immediately dispatched to the scene. The maintenance personnel use the fault information and historical data provided by the system to quickly locate and solve the problem, fault review: after the maintenance is completed, the fault is reviewed and analyzed.

[0012] The present invention has at least the following beneficial effects:

[0013] The automatic monitoring and alarm system for elevator traction force of the present invention can monitor the change of traction force in real time, and quickly trigger the alarm under abnormal circumstances, effectively preventing elevator accidents caused by insufficient or excessive traction force, such as falling, hitting the top, etc., and significantly improving the safety of elevator operation. Through trend analysis and fault mode recognition, the system can discover potential progressive faults in advance, so that maintenance personnel can intervene before the fault occurs, avoid fault escalation, and reduce accident risks. Detailed alarm information and historical data records help maintenance personnel quickly locate the fault point, reduce troubleshooting time, and improve maintenance efficiency. The system can predict the wear of elevator components and guide maintenance personnel to perform preventive maintenance, avoid long-term downtime caused by sudden faults, and extend the service life of the elevator. The system provides rich data, such as traction force change trend, fault Frequency, etc., provide a basis for scientific decision-making for elevator managers and help to formulate more reasonable maintenance plans and budgets. Through the remote monitoring center, managers can understand the operating status of the elevator in real time, respond to alarms in a timely manner, improve management efficiency, and reduce operating costs. The safety performance of the elevator is improved, and passengers are more at ease during the ride, which enhances passengers' trust in elevators. Through predictive maintenance and rapid response to faults, the downtime of elevators due to maintenance is reduced, the availability of elevators is improved, and more convenient services are provided to passengers. The research and development and application of the elevator traction automatic monitoring and alarm system have promoted the innovation of elevator monitoring technology and contributed to the technological progress of the elevator industry. With the widespread application of the system and the maturity of technology, it is expected to promote the formulation and promotion of relevant standards and promote the standardized development of the elevator industry. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0015] Embodiment 1

[0016] Including data collection, data processing and analysis, anomaly detection, alarm triggering, information transmission and recording, emergency response and fault handling. The system collects relevant data of traction force in real time through sensors installed on the elevator traction system. The sensors can monitor key parameters such as the tension of the traction rope, the operating status of the traction machine and the moving speed of the car. The collected data is transmitted to the control center of the system. The data analysis results show that the traction force is abnormal. The system will trigger the anomaly detection mechanism. Once it is confirmed that the traction force is abnormal and the alarm conditions are met, the system will immediately trigger the alarm mechanism. The system will transmit the alarm information to the elevator management personnel or monitoring center through a wired or wireless network. After receiving the alarm information, the management personnel should immediately take measures to respond to the emergency.

[0017] The automatic monitoring and alarm system for elevator traction force of the present invention can monitor the changes of traction force in real time, and quickly trigger an alarm under abnormal circumstances, effectively preventing elevator accidents caused by insufficient or excessive traction force, such as falling, hitting the top, etc., and significantly improving the safety of elevator operation. Through trend analysis and fault mode recognition, the system can detect potential progressive faults in advance, so that maintenance personnel can intervene before the fault occurs, avoid fault escalation, and reduce accident risks. Detailed alarm information and historical data records help maintenance personnel quickly locate the fault point, reduce troubleshooting time, and improve maintenance efficiency. The system can predict the wear of elevator components and guide maintenance personnel to perform preventive maintenance, avoid long-term downtime caused by sudden faults, and extend the service life of the elevator. The system provides rich data.

[0018] Embodiment 2

[0019] Data collection, sensor deployment, high-precision sensors are installed at key parts of the elevator traction system, such as traction wheels, traction ropes, and car tops. These sensors include but are not limited to tension sensors, velocity sensors, and acceleration sensors. Real-time collection, the sensors continuously collect data at a set frequency to ensure that any instantaneous changes in traction force can be captured. Data preprocessing, preliminary processing, filtering, and calibration of the raw data are performed at the sensor end or control center.

[0020] Embodiment 3

[0021] Data processing and analysis, data reception: the control center receives data from various sensors through wired or wireless means, algorithm analysis: using advanced algorithms, such as machine learning models, statistical analysis, etc., to conduct in-depth analysis of the received data, which includes calculating the average value, standard deviation, change trend and other statistical indicators of the traction force, and comparing them with the preset safety range, threshold setting: according to the specifications of the elevator, the use environment, the manufacturer's recommendations, etc., set a reasonable traction force threshold value. When the actual traction force exceeds these thresholds, it is considered abnormal, abnormality detection, multi-level warning, the system sets multiple warning levels, such as slight abnormality, moderate abnormality, and severe abnormality. According to the degree to which the traction force deviates from the normal value, the corresponding level of warning is triggered, trend analysis, in addition to the instantaneous value comparison, the system also analyzes the long-term change trend of the traction force and identifies potential progressive faults, fault mode recognition: using historical data and machine learning technology, the system attempts to identify specific fault modes, such as traction rope wear, traction wheel slippage, etc.

[0022] Embodiment 4

[0023] Alarm trigger, instant alarm: once the traction force abnormality is detected to reach or exceed the preset threshold, the system immediately triggers the alarm mechanism. Alarm method: There are various alarm methods, including but not limited to the sound and light alarm inside the elevator, the error code displayed on the control panel, the SMS or email notification to the management personnel, the alarm information displayed in the remote monitoring center, etc. Alarm information content: The alarm information should include key information such as elevator number, location, alarm time, abnormality type, recommended measures, etc.

[0024] Embodiment 5

[0025] Information transmission and recording,Data transmission: Alarm information is quickly transmitted to the designated recipient through a stable communication network,Data recording: The system automatically records all alarm events and related data, including traction data before and after the alarm, elevator operating status, and number of passengers, forming a detailed alarm log,Data security: Ensure data security during transmission and storage, and use encryption technology to prevent data leakage.

[0026] Embodiment 6

[0027] Emergency response and fault handling, Emergency braking: In severe abnormal situations, the system can automatically trigger the elevator emergency braking to ensure passenger safety, Passenger evacuation: Passengers are evacuated in an orderly manner through the elevator broadcasting system or the guidance of management personnel, Maintenance dispatch: According to the alarm information, professional maintenance personnel are immediately dispatched to the scene. The maintenance personnel use the fault information and historical data provided by the system to quickly locate and solve the problem, Fault review: After the maintenance is completed, the fault is reviewed and analyzed.

[0028] The safety performance of elevators has been improved, passengers feel more at ease during the ride, and their trust in elevators has been enhanced. Through predictive maintenance and rapid response to faults, the downtime of elevators due to maintenance has been reduced, the availability of elevators has been improved, and more convenient services have been provided to passengers. The research and development and application of the elevator traction automatic monitoring and alarm system has promoted the innovation of elevator monitoring technology and contributed to the technological progress of the elevator industry. With the widespread application of the system and the maturity of the technology, it is expected to promote the formulation and promotion of relevant standards and promote the standardized development of the elevator industry.

[0029] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. An automatic monitoring and alarm system for elevator traction force, including data collection, data processing and analysis, anomaly detection, alarm triggering, information transmission and recording, emergency response and fault handling. The system collects relevant data of traction force in real time through sensors installed on the elevator traction system. The sensors can monitor key parameters such as the tension of the traction rope, the operating status of the traction machine and the moving speed of the car. The collected data is transmitted to the control center of the system. The data analysis results show that the traction force is abnormal, and the system will trigger the anomaly detection mechanism. Once it is confirmed that the traction force is abnormal and the alarm condition is met, the system will immediately trigger the alarm mechanism. The system will transmit the alarm information to the elevator management personnel or monitoring center through a wired or wireless network. After receiving the alarm information, the management personnel should immediately take measures to respond to the emergency.

2. The elevator traction force automatic monitoring and alarm system according to claim 1 is characterized in that: The data acquisition and sensor deployment are carried out by installing high-precision sensors at key parts of the elevator traction system, such as the traction wheel, traction rope, and car top. These sensors include but are not limited to tension sensors, velocity sensors, and acceleration sensors. The sensors collect data continuously at a set frequency to ensure that any instantaneous changes in traction force can be captured. The data preprocessing is carried out by performing preliminary processing, filtering, and calibration on the raw data at the sensor end or the control center.

3. The elevator traction force automatic monitoring and alarm system according to claim 1 is characterized in that: The data processing and analysis, data reception: the control center receives data from various sensors through wired or wireless means, algorithm analysis: using advanced algorithms, such as machine learning models, statistical analysis, etc., to conduct in-depth analysis of the received data, which includes calculating the average value, standard deviation, change trend and other statistical indicators of the traction force, and comparing them with the preset safety range, threshold setting: according to the specifications of the elevator, the use environment, the manufacturer's recommendations, etc., set a reasonable traction force threshold value. When the actual traction force exceeds these thresholds, it is considered abnormal. The abnormality detection, multi-level warning, the system sets multiple warning levels, such as slight abnormality, moderate abnormality, and severe abnormality. According to the degree to which the traction force deviates from the normal value, the corresponding level of warning is triggered, trend analysis, in addition to the instantaneous value comparison, the system also analyzes the long-term change trend of the traction force and identifies potential progressive faults, fault mode recognition: using historical data and machine learning technology, the system attempts to identify specific fault modes, such as traction rope wear, traction wheel slippage, etc.

4. The elevator traction force automatic monitoring alarm system according to claim 1, characterized in that: The alarm trigger, instant alarm: once the traction force abnormality is detected to reach or exceed the preset threshold, the system immediately triggers the alarm mechanism, alarm mode: the alarm mode is diverse, including but not limited to the sound and light alarm inside the elevator, the error code displayed on the control panel, sending SMS or email notifications to the management personnel, displaying alarm information in the remote monitoring center, etc., alarm information content: the alarm information should include key information such as elevator number, location, alarm time, abnormality type, recommended measures, etc.

5. The elevator traction force automatic monitoring and alarm system according to claim 1 is characterized in that: The information transmission and recording, data transmission: the alarm information is quickly transmitted to the designated recipient through a stable communication network, data recording: the system automatically records all alarm events and related data, including traction data before and after the alarm, elevator operating status, and number of passengers, forming a detailed alarm log, data security: ensure data security during transmission and storage, and use encryption technology to prevent data leakage.

6. The elevator traction force automatic monitoring alarm system according to claim 1, characterized in that: The emergency response and fault handling described, emergency braking: in serious abnormal situations, the system can automatically trigger the elevator emergency braking to ensure the safety of passengers, passenger evacuation: passengers are evacuated in an orderly manner through the elevator broadcasting system or the guidance of management personnel, maintenance scheduling: according to the alarm information, professional maintenance personnel are immediately dispatched to the scene. The maintenance personnel use the fault information and historical data provided by the system to quickly locate and solve the problem, fault review: after the maintenance is completed, the fault is reviewed and analyzed.