A monitoring method and system for elevator operation stability

Abstract

The present invention discloses a monitoring method and system for elevator operation stability, which relates to the technical field of elevator monitoring, including detecting whether there are complex operation scenarios in high and low peak periods through conditional parameters and the occurrence conditions of complex operation scenarios; if there are complex operation scenarios in high and low peak periods, the indirect stability index of the elevator under the complex operation scenario is determined through load and indirect stability parameters, and the direct stability index of the elevator under the complex operation scenario is determined through load and direct stability parameters; the comprehensive stability index of the elevator is obtained by combining the elevator stability index of the complex operation scenario with the elevator stability index of the non-complex operation scenario, and the comprehensive stability index of the elevator is output according to the comprehensive stability index of the elevator in the high and low peak periods, so as to monitor the operation stability of the elevator. The accuracy and adaptability of elevator operation stability monitoring are improved, and the safe operation of the elevator is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of elevator monitoring, and in particular to a method and system for monitoring elevator operation stability. Background Art

[0002] The technical background of elevator operation stability monitoring stems from the continuous improvement of modern buildings' demand for safe and efficient operation of elevators. With the increase in high-rise buildings and the improvement of people's requirements for quality of life, elevators must not only provide a fast and comfortable riding experience, but also ensure absolute safety during operation. Against this background, elevator operation stability monitoring technology came into being. It integrates advanced technologies such as sensors, network communications, data processing and artificial intelligence. By real-time monitoring of key parameters such as elevator speed, position, load, vibration, etc., it can achieve a comprehensive assessment and early warning of the elevator's operating status. The application of this technology has effectively improved the safety performance of elevators, reduced the failure rate, and provided a scientific basis for preventive maintenance and efficient management of elevators.

[0003] In the prior art, only the vibration data and stability data of the elevator are often monitored to judge the stability of the elevator operation, resulting in low monitoring accuracy and poor monitoring adaptability of the elevator operation stability.

[0004] Therefore, how to improve the monitoring accuracy and adaptability of elevator operation stability is a technical problem that needs to be solved. Summary of the invention

[0005] The purpose of the present invention is to solve the problems of low monitoring accuracy and poor adaptability of elevator operation stability in the prior art, and to propose a method for monitoring elevator operation stability, the method comprising:

[0006] Define each operation node in the operation process of the elevator, divide the operation process into multiple operation stages according to the operation nodes, configure and continuously monitor the direct stability parameters of each operation stage, obtain the daily use log of the target elevator, and determine the peak and low use periods of the target elevator and the conditions for the occurrence of complex operation scenarios based on the daily use log of the target elevator;

[0007] Obtain the elevator-related parameters of the target elevator during the peak and low-peak periods. The elevator-related parameters include load, direct stability parameters, indirect stability parameters and conditional parameters. Use the conditional parameters and the occurrence conditions of complex operation scenarios to detect whether there are complex operation scenarios during the peak and low-peak periods.

[0008] If there are complex operation scenarios during peak and off-peak periods, each operation phase is integrated, and the indirect stability index of the elevator under the complex operation scenario is determined by the load and indirect stability parameters. At the same time, the direct stability index of the elevator under the complex operation scenario is determined by the load and direct stability parameters.

[0009] The elevator indirect stability index and the elevator direct stability index are combined to determine the elevator stability index of complex operation scenarios during peak hours and the elevator stability index of complex operation scenarios during off-peak hours, and the elevator stability index of non-complex operation scenarios during high and low peak hours is calculated at the same time;

[0010] The elevator stability index of complex operation scenarios during peak usage period is combined with the elevator stability index of non-complex operation scenarios to obtain the comprehensive elevator stability index during peak usage period. The elevator stability index of complex operation scenarios during off-peak usage period is combined with the elevator stability index of non-complex operation scenarios to obtain the comprehensive elevator stability index during off-peak usage period. The comprehensive elevator stability index is output according to the comprehensive elevator stability index of high and low peak usage periods to monitor the elevator operation stability.

[0011] In some embodiments of the present application, various operation nodes in the operation process of the elevator are defined, including:

[0012] The complete operation process of a single elevator operation is obtained, and the complete operation process is mapped into multiple operation steps. The change of the elevator speed in each operation step is analyzed, and the operation node is set according to the change of the elevator speed.

[0013] In some embodiments of the present application, the peak and low usage periods of the target elevator and the conditions for the occurrence of complex operation scenarios are determined according to the daily usage log of the target elevator, including:

[0014] The daily use log records the daily call frequency, number of designated floors and condition parameters of the target elevator. The peak and off-peak use periods include the peak use period and the off-peak use period. The daily use log is divided into time periods, and the peak use period and off-peak use period of the target elevator are determined according to the call frequency and number of designated floors in each time period.

[0015] Complex operation scenarios include complex scenarios with dense crowds and complex scenarios with multiple elevators working together;

[0016] Filter out parameter types that can characterize the number of elevator passengers from the condition parameters, record them as characterizing condition parameters, and intercept records of the characterizing condition parameters during peak usage periods and off-peak usage periods to form a curve graph of the characterizing condition parameters that change over time;

[0017] During the peak usage period, the minimum value of the characteristic condition parameter is determined according to the characteristic condition parameter curve graph, and a value with the highest frequency of occurrence near the minimum value is found, and the value is used as the condition for the occurrence of complex scenes with dense flow of people during the peak usage period;

[0018] During the off-peak period, the median and maximum values ​​of the characterizing condition parameters are determined according to the characterizing condition parameter curve diagram, and the average of the median and maximum values ​​is used as the occurrence condition of the complex scene with dense flow of people during the off-peak period;

[0019] During peak and off-peak periods, multiple target elevators are operated simultaneously, and the conditions for the occurrence of complex scenes with dense passenger flow during peak and off-peak periods are not met, which is used as the condition for the occurrence of complex scenes with multi-elevator coordination.

[0020] In some embodiments of the present application, if there are complex operation scenarios during peak and off-peak periods, each operation phase is integrated, and the indirect stability index of the elevator under the complex operation scenario is determined by load and indirect stability parameters, including:

[0021] Indirect stability parameters include reaction parameters and elevator utilization parameters, which integrate each operation stage to restore multiple single operation processes. The elevator utilization parameters include the elevator loaded travel distance, the elevator unloaded travel distance and the total distance of the elevator moving travel;

[0022] For complex scenes with dense flow of people, the reaction parameters are normalized, and the indirect stability index of the elevator in a single operation process under complex scenes with dense flow of people is determined according to the load, reaction parameters and elevator utilization parameters;

[0023] ;

[0024] in, It is an indirect stability indicator of the elevator during a single operation in a complex scene with dense crowds. is the conversion coefficient of the reaction parameter, is the conversion coefficient of elevator utilization parameters, is the number of reaction parameters, For the The weight of the reaction parameters, For the The average value of the reaction parameters, The minimum load of the elevator during a single operation in a crowded and complex scene. The stable value of the elevator load during a single operation in a crowded and complex scene. The stable value is the load that is maintained for the longest time. The maximum load of the elevator during a single operation in a crowded and complex scene. is the preset constant, is the elevator load travel distance, is the elevator's no-load travel distance, is the total distance of the elevator travel;

[0025] Integrate the indirect stability indicators of elevators in multiple single operation processes in crowded and complex scenes to obtain the indirect stability indicators of elevators in crowded and complex scenes;

[0026] For complex scenarios with multiple elevators working together, the indirect stability index of the elevators in such scenarios is obtained based on the elevator loaded travel distance, the elevator unloaded travel distance and the total distance of the elevator moving travel;

[0027] The indirect stability index of elevators in complex operating scenarios is determined by combining the indirect stability index of elevators in complex scenarios with dense passenger flow and the indirect stability index of elevators in complex scenarios with multi-elevator coordination.

[0028] In some embodiments of the present application, the direct stability index of the elevator in a complex operation scenario is determined by using both load and direct stability parameters, including:

[0029] A direct stability parameter curve diagram showing the direct stability parameter changing with time is constructed according to the direct stability parameter of each operation stage, and a standard line is marked in the direct stability parameter curve diagram to determine the standard interval, and the standard line is adjusted by the load of the operation stage, thereby adjusting the standard interval;

[0030] The positional relationship between the direct stability parameter and the adjusted standard interval is compared on the direct stability parameter curve to determine the deviation between the direct stability parameter and the standard interval. The deviation of each direct stability parameter in the operation stage is summarized to determine the direct stability index of the elevator under complex operation scenarios.

[0031] In some embodiments of the present application, the elevator indirect stability index and the elevator direct stability index are combined to respectively determine the elevator stability index of the complex operation scenario during the peak period and the elevator stability index of the complex operation scenario during the off-peak period, including:

[0032] Calculate the volatility of the elevator indirect stability index and the elevator direct stability index;

[0033] For complex operation scenarios during peak hours, the first combined weight of the elevator indirect stability index and the elevator direct stability index is assigned according to volatility, and the first combined weight of the one with greater volatility is greater. The elevator stability index of the complex operation scenario during peak hours is obtained by weighted summing the first combined weight, the elevator indirect stability index and the elevator direct stability index.

[0034] For complex operation scenarios during off-peak hours, the second combined weight of the elevator indirect stability index and the elevator direct stability index is assigned according to volatility, and the second combined weight of the side with smaller volatility is larger. The elevator stability index for complex operation scenarios during off-peak hours is obtained by weighted summing the second combined weight, the elevator indirect stability index and the elevator direct stability index.

[0035] In some embodiments of the present application, the elevator stability index of the complex operation scenario during the peak period of use and the elevator stability index of the non-complex operation scenario are combined to obtain the comprehensive stability index of the elevator during the peak period of use, including:

[0036] The complex operation scenarios and non-complex operation scenarios during peak hours are divided by the occurrence conditions of complex operation scenarios during peak hours, and the third combined weights of the two scenarios are assigned respectively by comparing the respective duration proportions of the complex operation scenarios and the non-complex operation scenarios. The comprehensive elevator stability index during peak hours is obtained by weighted summing the third combined weights, the elevator stability index of the complex operation scenarios and the elevator stability index of the non-complex operation scenarios.

[0037] In some embodiments of the present application, the elevator stability index of the complex operation scenario during the off-peak period and the elevator stability index of the non-complex operation scenario are combined to obtain the comprehensive elevator stability index during the off-peak period, including:

[0038] The conditions for the occurrence of complex operation scenarios during off-peak hours are used to divide the complex operation scenarios and non-complex operation scenarios during off-peak hours. The fourth combined weight is assigned to the two scenarios by comparing their respective duration proportions. The comprehensive elevator stability index during off-peak hours is obtained by taking the weighted sum of the fourth combined weight, the elevator stability index of the complex operation scenario and the elevator stability index of the non-complex operation scenario.

[0039] Correspondingly, the present application also provides a monitoring system for elevator operation stability, including:

[0040] The first module is used to define each operation node in the operation process of the elevator, divide the operation process into multiple operation stages according to the operation nodes, configure and continuously monitor the direct stability parameters of each operation stage, obtain the daily use log of the target elevator, and determine the peak and low use periods of the target elevator and the conditions for the occurrence of complex operation scenarios according to the daily use log of the target elevator;

[0041] The second module is used to obtain the elevator-related parameters of the target elevator during the peak and low-peak periods. The elevator-related parameters include load, direct stability parameters, indirect stability parameters and condition parameters. The condition parameters and the occurrence conditions of complex operation scenarios are used to detect whether there are complex operation scenarios during the peak and low-peak periods.

[0042] The third module is used to integrate each operation stage if there are complex operation scenarios during peak and off-peak periods, and determine the indirect stability index of the elevator under the complex operation scenario through load and indirect stability parameters, and determine the direct stability index of the elevator under the complex operation scenario through load and direct stability parameters;

[0043] The fourth module is used to combine the elevator indirect stability index and the elevator direct stability index to respectively determine the elevator stability index of the complex operation scenario during the peak period and the elevator stability index of the complex operation scenario during the off-peak period, and simultaneously calculate the elevator stability index of the non-complex operation scenario during the high and low peak periods;

[0044] The fifth module is used to combine the elevator stability index of complex operation scenarios during peak use periods with the elevator stability index of non-complex operation scenarios to obtain the comprehensive elevator stability index during peak use periods, and to combine the elevator stability index of complex operation scenarios during off-peak use periods with the elevator stability index of non-complex operation scenarios to obtain the comprehensive elevator stability index during off-peak use periods. The comprehensive elevator stability index is output according to the comprehensive elevator stability index of high and low peak use periods, so as to monitor the elevator operation stability.

[0045] By applying the above technical solution, each operation node in the operation process of the elevator is defined, and the operation process is divided into multiple operation stages according to the operation nodes. The direct stability parameters of each operation stage are configured and continuously monitored, and the daily use log of the target elevator is obtained. The peak and off-peak time periods of the target elevator and the conditions for the occurrence of complex operation scenarios are determined according to the daily use log of the target elevator; the elevator-related parameters of the target elevator during the peak and off-peak time periods are obtained. The elevator-related parameters include load, direct stability parameters, indirect stability parameters and conditional parameters. The conditional parameters and the conditions for the occurrence of complex operation scenarios are used to detect whether there are complex operation scenarios during the peak and off-peak time periods; if there are complex operation scenarios during the peak and off-peak time periods, each operation stage is integrated, and the indirect stability indicators of the elevator under the complex operation scenarios are determined through the load and indirect stability parameters. The load and direct stability parameters are used to determine the direct stability index of the elevator under complex operation scenarios; the indirect stability index of the elevator and the direct stability index of the elevator are combined to respectively determine the elevator stability index of the complex operation scenario under the peak period and the elevator stability index of the complex operation scenario under the off-peak period, and at the same time calculate the elevator stability index of the non-complex operation scenario under the high and low peak periods; the elevator stability index of the complex operation scenario under the peak period is combined with the elevator stability index of the non-complex operation scenario to obtain the comprehensive stability index of the elevator under the peak period, and the elevator stability index of the complex operation scenario under the off-peak period is combined with the elevator stability index of the non-complex operation scenario to obtain the comprehensive stability index of the elevator under the off-peak period, and the comprehensive stability index of the elevator is output according to the comprehensive stability index of the elevator under the high and low peak periods, so as to monitor the stability of the elevator operation. This application defines each operation node in the operation process of the elevator and obtains multiple operation stages, so as to ensure that each process of the elevator operation can be accurately monitored and improve the adaptability of the monitoring. Determine the peak and low peak periods of the target elevator and the conditions for the occurrence of complex operation scenarios, so as to ensure that the complex operation scenarios in the elevator operation process can be accurately monitored. The elevator stability indicators for complex operation scenarios during peak and off-peak periods and the elevator stability indicators for non-complex operation scenarios are determined, and ultimately the operation of the elevator is accurately described to obtain the stability of the elevator operation, thereby improving the accuracy and adaptability of elevator operation stability monitoring and ensuring the safe operation of the elevator. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 A schematic diagram of a flow chart of a method for monitoring elevator operation stability proposed by the present invention;

[0047] Figure 2 The present invention is a schematic structural diagram of a monitoring system for elevator operation stability. DETAILED DESCRIPTION

[0048] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0049] Reference Figure 1 , a method for monitoring the running stability of an elevator, comprising the following steps:

[0050] Step S101, define each operation node in the operation process of the elevator, divide the operation process into multiple operation stages according to the operation nodes, configure and continuously monitor the direct stability parameters of each operation stage, obtain the daily use log of the target elevator, and determine the peak and low use periods of the target elevator and the conditions for the occurrence of complex operation scenarios based on the daily use log of the target elevator.

[0051] In this embodiment, the complete operation process of the elevator is analyzed to define each operation node (stationary-acceleration-stable speed-deceleration-stationary), and the stage between adjacent operation nodes is the operation stage. Direct stability parameters are parameters that can directly reflect the stability of the elevator, such as speed, acceleration, vibration, noise and other parameters. Complex operation scenarios include complex scenarios with dense flow of people and complex scenarios with multi-elevator coordination. This is to consider whether the operation stability of the elevator will be affected in complex situations and make an accurate assessment. The complex scenario with dense flow of people is to analyze the operation of the elevator when there are many passengers. The complex scenario with multi-elevator coordination is to analyze the coordination and coordination capabilities between multiple elevators. In general, the complex scenario with dense flow of people also includes the situation of multi-elevator coordination, because when the number of passengers is large, all elevators are used. The complex scenario with multi-elevator coordination is to analyze the coordination capabilities of multiple elevators only when the number of passengers is relatively small. Both scenarios show the stability of the elevator itself and the rationality of the control algorithm of the elevator control system. The stability of the elevator is evaluated by combining the two.

[0052] In some embodiments of the present application, various operation nodes in the operation process of the elevator are defined, including:

[0053] The complete operation process of a single elevator operation is obtained, and the complete operation process is mapped into multiple operation steps. The change of the elevator speed in each operation step is analyzed, and the operation node is set according to the change of the elevator speed.

[0054] In this embodiment, a complete operation of the elevator generally includes the following steps:

[0055] 1. Call the elevator

[0056] External call: Passengers in the floor lobby or corridor press the up or down button as needed to call the elevator. Usually, there will be an indicator light on the button to show that the call has been received.

[0057] 2. Wait for the elevator to arrive

[0058] Be patient: While waiting, passengers should be patient and pay attention to the arrival of the elevator.

[0059] 3. Enter the elevator

[0060] Confirm safety: After the elevator arrives, wait for the elevator door to open completely and confirm that there is no one blocking the elevator or the elevator door is completely unobstructed before entering.

[0061] Avoid crowding: Be courteous to others and avoid forcing your way in or out of the elevator when the doors are closed.

[0062] 4. Select the target floor

[0063] Press the floor button: After entering the elevator, passengers press the floor button inside the elevator according to their destination. Make sure to press the correct button so that the elevator can run as required.

[0064] 5. Wait for the elevator to run

[0065] Keep quiet: During the operation of the elevator, passengers should stand or sit still, avoid moving back and forth in the elevator, and keep quiet so as not to disturb other passengers.

[0066] Observe the display screen: Pay attention to the display screen in the elevator to confirm the current floor and the floor you are about to reach.

[0067] 6. Arrive at the target floor

[0068] Waiting for the door to open: When the elevator reaches the target floor, it will automatically stop and open the door. Passengers should wait for the elevator door to fully open before leaving the elevator.

[0069] 7. Leave the elevator

[0070] Pay attention to safety: When leaving the elevator, passengers should pay attention to their feet and make sure the pedals are level with the ground to avoid the risk of tripping or falling. At the same time, be careful not to squeeze other passengers.

[0071] Leave quickly: After leaving the elevator, leave the elevator entrance quickly to allow other passengers to enter and exit.

[0072] In this embodiment, the operation node (stationary-acceleration-stable speed-deceleration-stationary), the stage between adjacent operation nodes is the operation stage. The stability of the direct parameter is as follows:

[0073] 1. Stable static state

[0074] When the elevator stops at a floor, it should remain stationary without shaking or instability. This is the basis for the stability of the elevator operation and the premise for passengers to feel safe and comfortable when entering and exiting the elevator.

[0075] 2. Stable operation status

[0076] When the elevator starts running or is running, it should be ensured that the elevator runs smoothly without obvious vibration, shaking or noise. Passengers should feel stable and comfortable in the elevator without being disturbed by the running status. This is crucial to improving the passenger riding experience and ensuring the safety of elevator operation.

[0077] 3. Stable acceleration and deceleration

[0078] During the acceleration or deceleration process, the elevator should transition smoothly to avoid sudden acceleration or deceleration causing passengers to feel unbalanced or uncomfortable. This requires the elevator control system to have precise acceleration and deceleration control capabilities to ensure the continuity and stability of the elevator operation.

[0079] In some embodiments of the present application, the peak and low usage periods of the target elevator and the conditions for the occurrence of complex operation scenarios are determined according to the daily usage log of the target elevator, including:

[0080] The daily use log records the daily call frequency, number of designated floors and condition parameters of the target elevator. The peak and off-peak use periods include the peak use period and the off-peak use period. The daily use log is divided into time periods, and the peak use period and off-peak use period of the target elevator are determined according to the call frequency and number of designated floors in each time period.

[0081] Complex operation scenarios include complex scenarios with dense crowds and complex scenarios with multiple elevators working together;

[0082] Filter out parameter types that can characterize the number of elevator passengers from the condition parameters, record them as characterizing condition parameters, and intercept records of the characterizing condition parameters during peak usage periods and off-peak usage periods to form a curve graph of the characterizing condition parameters that change over time;

[0083] During the peak usage period, the minimum value of the characteristic condition parameter is determined according to the characteristic condition parameter curve graph, and a value with the highest frequency of occurrence near the minimum value is found, and the value is used as the condition for the occurrence of complex scenes with dense flow of people during the peak usage period;

[0084] During the off-peak period, the median and maximum values ​​of the characterizing condition parameters are determined according to the characterizing condition parameter curve diagram, and the average of the median and maximum values ​​is used as the occurrence condition of the complex scene with dense flow of people during the off-peak period;

[0085] During peak and off-peak periods, multiple target elevators are operated simultaneously, and the conditions for the occurrence of complex scenes with dense passenger flow during peak and off-peak periods are not met, which is used as the condition for the occurrence of complex scenes with multi-elevator coordination.

[0086] In this embodiment, the call frequency and the number of designated floors (the more the number, the more frequently the elevator is used) can both reflect the frequent use of the elevator to divide the target elevator into a peak usage period and a low usage period. Characteristic condition parameters are conditions that can reflect the number of people, such as the number of people waiting at the elevator entrance, elevator load, full load rate, etc.

[0087] It should be noted that during peak hours, there is not always a peak flow of people, and there may be a small number of people. Similarly, during off-peak hours, there is not always a small number of people, and there may be a large number of people occasionally.

[0088] In this embodiment, a value with the highest frequency of occurrence is found near the minimum value, and this value is used as the appearance condition of the complex scene with dense flow of people during the peak period. This is to ensure the reliability and accuracy of the recognition of the complex scene with dense flow of people, and to select a relatively small value as the appearance condition of the scene. The average value of the median value and the maximum value is used as the appearance condition of the complex scene with dense flow of people during the off-peak period to avoid the misidentification of the scene, and thus a relatively high value is selected as the appearance condition.

[0089] It is understandable that complex scenes with dense crowds mostly occur during peak usage hours, while complex scenes with multiple elevators working together mostly occur during off-peak usage hours.

[0090] Step S102, obtaining elevator-related parameters of the target elevator during a period of time during peak and off-peak periods, the elevator-related parameters including load, direct stability parameters, indirect stability parameters and conditional parameters, and detecting whether there are complex operation scenarios during peak and off-peak periods by using the conditional parameters and the conditions for the occurrence of complex operation scenarios.

[0091] In this embodiment, if there is no complex operation scenario during peak and off-peak periods, the stability is determined directly based on the direct stability parameters and indirect stability parameters of the non-complex operation scenario.

[0092] Step S103, if there are complex operation scenarios during peak and off-peak periods, each operation stage is integrated, and the indirect stability index of the elevator under the complex operation scenario is determined by the load and indirect stability parameters, and the direct stability index of the elevator under the complex operation scenario is determined by the load and direct stability parameters.

[0093] In this embodiment, the load affects the indirect stability parameter and the direct stability parameter, so as to determine the indirect stability index of the elevator, which describes the elevator utilization and the elevator algorithm. The direct stability index of the elevator describes the stability of the elevator itself.

[0094] In some embodiments of the present application, if there are complex operation scenarios during peak and off-peak periods, each operation phase is integrated, and the indirect stability index of the elevator under the complex operation scenario is determined by load and indirect stability parameters, including:

[0095] Indirect stability parameters include reaction parameters and elevator utilization parameters, which integrate each operation stage to restore multiple single operation processes. The elevator utilization parameters include the elevator loaded travel distance, the elevator unloaded travel distance and the total distance of the elevator moving travel;

[0096] For complex scenes with dense flow of people, the reaction parameters are normalized, and the indirect stability index of the elevator in a single operation process under complex scenes with dense flow of people is determined according to the load, reaction parameters and elevator utilization parameters;

[0097] ;

[0098] in, It is an indirect stability indicator of the elevator during a single operation in a complex scene with dense crowds. is the conversion coefficient of the reaction parameter, is the conversion coefficient of elevator utilization parameters, is the number of reaction parameters, For the The weight of the reaction parameters, For the The average value of the reaction parameters, The minimum load of the elevator during a single operation in a crowded and complex scene. The stable value of the elevator load during a single operation in a crowded and complex scene. The stable value is the load that is maintained for the longest time. The maximum load of the elevator during a single operation in a crowded and complex scene. is the preset constant, is the elevator load travel distance, is the elevator's no-load travel distance, is the total distance of the elevator travel;

[0099] Integrate the indirect stability indicators of elevators in multiple single operation processes in crowded and complex scenes to obtain the indirect stability indicators of elevators in crowded and complex scenes;

[0100] For complex scenarios with multiple elevators working together, the indirect stability index of the elevators in such scenarios is obtained based on the elevator loaded travel distance, the elevator unloaded travel distance and the total distance of the elevator moving travel;

[0101] The indirect stability index of elevators in complex operating scenarios is determined by combining the indirect stability index of elevators in complex scenarios with dense passenger flow and the indirect stability index of elevators in complex scenarios with multi-elevator coordination.

[0102] In this embodiment, the reaction parameters include parameters such as elevator response time, waiting time, and elevator riding time. Because the load is constantly changing during the operation of the elevator, the total impact of all reaction parameters is corrected here by a specific load average value (the average of the minimum, stable, and maximum values ​​of the elevator load during a single operation). The elevator loaded travel distance is the sum of the distances moved by the elevator carrying people or objects, the elevator unloaded travel distance is the sum of the distances moved by the elevator without people or objects, and the total distance of the elevator travel, where the elevator travel distance can be replaced by the number of floors.

[0103] In some embodiments of the present application, the direct stability index of the elevator in a complex operation scenario is determined by using both load and direct stability parameters, including:

[0104] A direct stability parameter curve diagram showing the direct stability parameter changing with time is constructed according to the direct stability parameter of each operation stage, and a standard line is marked in the direct stability parameter curve diagram to determine the standard interval, and the standard line is adjusted by the load of the operation stage, thereby adjusting the standard interval;

[0105] The positional relationship between the direct stability parameter and the adjusted standard interval is compared on the direct stability parameter curve to determine the deviation between the direct stability parameter and the standard interval. The deviation of each direct stability parameter in the operation stage is summarized to determine the direct stability index of the elevator under complex operation scenarios.

[0106] In this embodiment, because the load size of the elevator affects the direct stability parameters, the speed slows down when the load increases: when the elevator carries a heavier load, its drive system needs to consume more energy to lift or lower the extra weight, so the running speed of the elevator may slow down. This is because the braking distance of the elevator increases and the braking time becomes longer, resulting in a decrease in the overall speed. The impact of load changes on acceleration: the elevator will generate acceleration during the start and stop process. When the load increases, in order to overcome the greater inertial force, the starting acceleration of the elevator may decrease, while the stopping acceleration (i.e., deceleration) may increase to ensure that the elevator stops smoothly. Increased load leads to increased vibration: when the elevator carries a heavier load, the force on the car, traction machine, wheelset, guide rails and other components will increase, resulting in increased vibration. This vibration will not only affect the stability of the elevator, but may also cause damage to the elevator components, and also include the impact on other direct stability parameters, which will not be explained one by one here.

[0107] In this embodiment, the standard interval of the direct stability parameter curve is first defined, and it is relatively stable within this interval. Exceeding this interval indicates relative instability. Different loads have different adjustment coefficients. The standard line is adjusted by adjusting the coefficient (in the form of product) to make the standard interval different. The direct stability index of the elevator in a complex operation scenario is determined by comprehensively considering the deviation.

[0108] Step S104, combining the elevator indirect stability index and the elevator direct stability index to respectively determine the elevator stability index for complex operation scenarios during peak hours and the elevator stability index for complex operation scenarios during off-peak hours, and at the same time calculating the elevator stability index for non-complex operation scenarios during high and low peak hours.

[0109] In this embodiment, the characteristics reflected in the peak period and the low-peak period are different, and the indirect stability index of the elevator and the direct stability index of the elevator are combined respectively. The elevator stability index of the non-complex operation scenario in the high and low peak periods does not limit the calculation method of the elevator stability index of the non-complex operation scenario, as long as it is obtained according to the direct stability parameter and the indirect stability parameter.

[0110] In some embodiments of the present application, the elevator indirect stability index and the elevator direct stability index are combined to respectively determine the elevator stability index of the complex operation scenario during the peak period and the elevator stability index of the complex operation scenario during the off-peak period, including:

[0111] Calculate the volatility of the elevator indirect stability index and the elevator direct stability index;

[0112] For complex operation scenarios during peak hours, the first combined weight of the elevator indirect stability index and the elevator direct stability index is assigned according to volatility, and the first combined weight of the one with greater volatility is greater. The elevator stability index of the complex operation scenario during peak hours is obtained by weighted summing the first combined weight, the elevator indirect stability index and the elevator direct stability index.

[0113] For complex operation scenarios during off-peak hours, the second combined weight of the elevator indirect stability index and the elevator direct stability index is assigned according to volatility, and the second combined weight of the side with smaller volatility is larger. The elevator stability index for complex operation scenarios during off-peak hours is obtained by weighted summing the second combined weight, the elevator indirect stability index and the elevator direct stability index.

[0114] In this embodiment, the volatility of the elevator indirect stability index and the elevator direct stability index is calculated. The volatility is the change of the two indicators within a certain period of time. For peak usage periods, the ones with larger changes are given larger weights. For off-peak usage periods, the ones with larger changes are given smaller weights.

[0115] Step S105, combining the elevator stability index of the complex operation scenario during the peak period with the elevator stability index of the non-complex operation scenario to obtain the comprehensive elevator stability index during the peak period, combining the elevator stability index of the complex operation scenario during the off-peak period with the elevator stability index of the non-complex operation scenario to obtain the comprehensive elevator stability index during the off-peak period, outputting the comprehensive elevator stability index according to the comprehensive elevator stability index during the high and low peak periods, so as to monitor the elevator operation stability.

[0116] In this embodiment, the complex operation scenario is combined with the non-complex operation scenario. Here, all other scenarios except the complex operation scenario are non-complex operation scenarios. The duration of each complex operation scenario and the non-complex operation scenario is counted to assign a combination weight. Finally, the comprehensive stability index of the elevator in the two time periods of the high and low peak periods is integrated to output the comprehensive stability index of the elevator.

[0117] In some embodiments of the present application, the elevator stability index of the complex operation scenario during the peak period of use and the elevator stability index of the non-complex operation scenario are combined to obtain the comprehensive stability index of the elevator during the peak period of use, including:

[0118] The complex operation scenarios and non-complex operation scenarios during peak hours are divided by the occurrence conditions of complex operation scenarios during peak hours, and the third combined weights of the two scenarios are assigned respectively by comparing the respective duration proportions of the complex operation scenarios and the non-complex operation scenarios. The comprehensive elevator stability index during peak hours is obtained by weighted summing the third combined weights, the elevator stability index of the complex operation scenarios and the elevator stability index of the non-complex operation scenarios.

[0119] In some embodiments of the present application, the elevator stability index of the complex operation scenario during the off-peak period and the elevator stability index of the non-complex operation scenario are combined to obtain the comprehensive elevator stability index during the off-peak period, including:

[0120] The conditions for the occurrence of complex operation scenarios during off-peak hours are used to divide the complex operation scenarios and non-complex operation scenarios during off-peak hours. The fourth combined weight is assigned to the two scenarios by comparing their respective duration proportions. The comprehensive elevator stability index during off-peak hours is obtained by taking the weighted sum of the fourth combined weight, the elevator stability index of the complex operation scenario and the elevator stability index of the non-complex operation scenario.

[0121] By applying the above technical solution, each operation node in the operation process of the elevator is defined, and the operation process is divided into multiple operation stages according to the operation nodes. The direct stability parameters of each operation stage are configured and continuously monitored, and the daily use log of the target elevator is obtained. The peak and off-peak time periods of the target elevator and the conditions for the occurrence of complex operation scenarios are determined according to the daily use log of the target elevator; the elevator-related parameters of the target elevator during the peak and off-peak time periods are obtained. The elevator-related parameters include load, direct stability parameters, indirect stability parameters and conditional parameters. The conditional parameters and the conditions for the occurrence of complex operation scenarios are used to detect whether there are complex operation scenarios during the peak and off-peak time periods; if there are complex operation scenarios during the peak and off-peak time periods, each operation stage is integrated, and the indirect stability indicators of the elevator under the complex operation scenarios are determined through the load and indirect stability parameters. The load and direct stability parameters are used to determine the direct stability index of the elevator under complex operation scenarios; the indirect stability index of the elevator and the direct stability index of the elevator are combined to respectively determine the elevator stability index of the complex operation scenario under the peak period and the elevator stability index of the complex operation scenario under the off-peak period, and at the same time calculate the elevator stability index of the non-complex operation scenario under the high and low peak periods; the elevator stability index of the complex operation scenario under the peak period is combined with the elevator stability index of the non-complex operation scenario to obtain the comprehensive stability index of the elevator under the peak period, and the elevator stability index of the complex operation scenario under the off-peak period is combined with the elevator stability index of the non-complex operation scenario to obtain the comprehensive stability index of the elevator under the off-peak period, and the comprehensive stability index of the elevator is output according to the comprehensive stability index of the elevator under the high and low peak periods, so as to monitor the stability of the elevator operation. This application defines each operation node in the operation process of the elevator and obtains multiple operation stages, so as to ensure that each process of the elevator operation can be accurately monitored and improve the adaptability of the monitoring. Determine the peak and low peak periods of the target elevator and the conditions for the occurrence of complex operation scenarios, so as to ensure that the complex operation scenarios in the elevator operation process can be accurately monitored. The elevator stability indicators for complex operation scenarios during peak and off-peak periods and the elevator stability indicators for non-complex operation scenarios are determined, and ultimately the operation of the elevator is accurately described to obtain the stability of the elevator operation, thereby improving the accuracy and adaptability of elevator operation stability monitoring and ensuring the safe operation of the elevator.

[0122] Through the description of the above implementation methods, those skilled in the art can clearly understand that the present invention can be implemented by hardware, or by software plus a necessary general hardware platform. Based on such an understanding, the technical solution of the present invention can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, a USB flash drive, a mobile hard disk, etc.), including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each implementation scenario of the present invention.

[0123] Correspondingly, the present application also provides a monitoring system for elevator operation stability, such as Figure 2 As shown, including:

[0124] The first module is used to define each operation node in the operation process of the elevator, divide the operation process into multiple operation stages according to the operation nodes, configure and continuously monitor the direct stability parameters of each operation stage, obtain the daily use log of the target elevator, and determine the peak and low use periods of the target elevator and the conditions for the occurrence of complex operation scenarios according to the daily use log of the target elevator;

[0125] The second module is used to obtain the elevator-related parameters of the target elevator during the peak and low-peak periods. The elevator-related parameters include load, direct stability parameters, indirect stability parameters and condition parameters. The condition parameters and the occurrence conditions of complex operation scenarios are used to detect whether there are complex operation scenarios during the peak and low-peak periods.

[0126] The third module is used to integrate each operation stage if there are complex operation scenarios during peak and off-peak periods, and determine the indirect stability index of the elevator under the complex operation scenario through load and indirect stability parameters, and determine the direct stability index of the elevator under the complex operation scenario through load and direct stability parameters;

[0127] The fourth module is used to combine the elevator indirect stability index and the elevator direct stability index to respectively determine the elevator stability index of the complex operation scenario during the peak period and the elevator stability index of the complex operation scenario during the off-peak period, and simultaneously calculate the elevator stability index of the non-complex operation scenario during the high and low peak periods;

[0128] The fifth module is used to combine the elevator stability index of complex operation scenarios during peak use periods with the elevator stability index of non-complex operation scenarios to obtain the comprehensive elevator stability index during peak use periods, and to combine the elevator stability index of complex operation scenarios during off-peak use periods with the elevator stability index of non-complex operation scenarios to obtain the comprehensive elevator stability index during off-peak use periods. The comprehensive elevator stability index is output according to the comprehensive elevator stability index of high and low peak use periods, so as to monitor the elevator operation stability.

[0129] Those skilled in the art will appreciate that the modules in the system in the implementation scenario can be distributed in the system of the implementation scenario according to the implementation scenario description, or can be changed accordingly and located in one or more systems different from the implementation scenario. The modules in the above implementation scenario can be combined into one module, or can be further split into multiple submodules.

[0130] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A method for monitoring elevator operation stability, characterized in that: include: Define each operation node in the operation process of the elevator, divide the operation process into multiple operation stages according to the operation nodes, configure and continuously monitor the direct stability parameters of each operation stage, obtain the daily use log of the target elevator, and determine the peak and low use periods of the target elevator and the conditions for the occurrence of complex operation scenarios based on the daily use log of the target elevator; Obtain the elevator-related parameters of the target elevator during the peak and low-peak periods. The elevator-related parameters include load, direct stability parameters, indirect stability parameters and conditional parameters. Use the conditional parameters and the occurrence conditions of complex operation scenarios to detect whether there are complex operation scenarios during the peak and low-peak periods. If there are complex operation scenarios during peak and off-peak periods, each operation phase is integrated, and the indirect stability index of the elevator under the complex operation scenario is determined by the load and indirect stability parameters. At the same time, the direct stability index of the elevator under the complex operation scenario is determined by the load and direct stability parameters. The elevator indirect stability index and the elevator direct stability index are combined to determine the elevator stability index of complex operation scenarios during peak hours and the elevator stability index of complex operation scenarios during off-peak hours, and the elevator stability index of non-complex operation scenarios during high and low peak hours is calculated at the same time; The elevator stability index of complex operation scenarios during peak usage period is combined with the elevator stability index of non-complex operation scenarios to obtain the comprehensive elevator stability index during peak usage period. The elevator stability index of complex operation scenarios during off-peak usage period is combined with the elevator stability index of non-complex operation scenarios to obtain the comprehensive elevator stability index during off-peak usage period. The comprehensive elevator stability index is output according to the comprehensive elevator stability index of high and low peak usage periods to monitor the elevator operation stability.

2. The method for monitoring elevator operation stability according to claim 1, characterized in that: Define the various operation nodes in the elevator operation process, including: The complete operation process of a single elevator operation is obtained, and the complete operation process is mapped into multiple operation steps. The change of the elevator speed in each operation step is analyzed, and the operation node is set according to the change of the elevator speed.

3. The method for monitoring elevator operation stability according to claim 1, characterized in that: According to the daily usage log of the target elevator, the peak and off-peak hours of the target elevator and the conditions for the occurrence of complex operation scenarios are determined, including: The daily use log records the daily call frequency, number of designated floors and condition parameters of the target elevator. The peak and off-peak use periods include the peak use period and the off-peak use period. The daily use log is divided into time periods, and the peak use period and off-peak use period of the target elevator are determined according to the call frequency and number of designated floors in each time period. Complex operation scenarios include complex scenarios with dense crowds and complex scenarios with multiple elevators working together; Filter out parameter types that can characterize the number of elevator passengers from the condition parameters, record them as characterizing condition parameters, and intercept records of the characterizing condition parameters during peak usage periods and off-peak usage periods to form a curve graph of the characterizing condition parameters that change over time; During the peak usage period, the minimum value of the characteristic condition parameter is determined according to the characteristic condition parameter curve graph, and a value with the highest frequency of occurrence near the minimum value is found, and the value is used as the condition for the occurrence of complex scenes with dense flow of people during the peak usage period; During the off-peak period, the median and maximum values ​​of the characterizing condition parameters are determined according to the characterizing condition parameter curve diagram, and the average of the median and maximum values ​​is used as the occurrence condition of the complex scene with dense flow of people during the off-peak period; During peak and off-peak periods, multiple target elevators are operated simultaneously, and the conditions for the occurrence of complex scenes with dense passenger flow during peak and off-peak periods are not met, which is used as the condition for the occurrence of complex scenes with multi-elevator coordination.

4. The method for monitoring elevator operation stability according to claim 3, characterized in that: If there are complex operation scenarios during peak and off-peak periods, each operation phase is integrated, and the indirect stability index of the elevator under the complex operation scenario is determined through load and indirect stability parameters, including: Indirect stability parameters include reaction parameters and elevator utilization parameters, which integrate each operation stage to restore multiple single operation processes. The elevator utilization parameters include the elevator loaded travel distance, the elevator unloaded travel distance and the total distance of the elevator moving travel; For complex scenes with dense flow of people, the reaction parameters are normalized, and the indirect stability index of the elevator in a single operation process under complex scenes with dense flow of people is determined according to the load, reaction parameters and elevator utilization parameters; ； in, It is an indirect stability indicator of the elevator during a single operation in a complex scene with dense crowds. is the conversion coefficient of the reaction parameter, is the conversion coefficient of elevator utilization parameters, is the number of reaction parameters, For the The weight of the reaction parameters, For the The average value of the reaction parameters, The minimum load of the elevator during a single operation in a crowded and complex scene. The stable value of the elevator load during a single operation in a crowded and complex scene. The stable value is the load that is maintained for the longest time. The maximum load of the elevator during a single operation in a crowded and complex scene. is the preset constant, is the elevator load travel distance, is the elevator's no-load travel distance, is the total distance of the elevator travel; Integrate the indirect stability indicators of elevators in multiple single operation processes in crowded and complex scenes to obtain the indirect stability indicators of elevators in crowded and complex scenes; For complex scenarios with multiple elevators working together, the indirect stability index of the elevators in such scenarios is obtained based on the elevator loaded travel distance, the elevator unloaded travel distance and the total distance of the elevator moving travel; The indirect stability index of elevators in complex operating scenarios is determined by combining the indirect stability index of elevators in complex scenarios with dense passenger flow and the indirect stability index of elevators in complex scenarios with multi-elevator coordination.

5. The method for monitoring elevator operation stability according to claim 1, characterized in that: At the same time, the direct stability index of the elevator in complex operation scenarios is determined by load and direct stability parameters, including: A direct stability parameter curve diagram showing the direct stability parameter changing with time is constructed according to the direct stability parameter of each operation stage, and a standard line is marked in the direct stability parameter curve diagram to determine the standard interval, and the standard line is adjusted by the load of the operation stage, thereby adjusting the standard interval; The positional relationship between the direct stability parameter and the adjusted standard interval is compared on the direct stability parameter curve to determine the deviation between the direct stability parameter and the standard interval. The deviation of each direct stability parameter in the operation stage is summarized to determine the direct stability index of the elevator under complex operation scenarios.

6. The method for monitoring elevator operation stability according to claim 3, characterized in that: The elevator indirect stability index and the elevator direct stability index are combined to determine the elevator stability index of complex operation scenarios during peak hours and the elevator stability index of complex operation scenarios during off-peak hours, including: Calculate the volatility of the elevator indirect stability index and the elevator direct stability index; For complex operation scenarios during peak hours, the first combined weight of the elevator indirect stability index and the elevator direct stability index is assigned according to volatility, and the first combined weight of the one with greater volatility is greater. The elevator stability index of the complex operation scenario during peak hours is obtained by weighted summing the first combined weight, the elevator indirect stability index and the elevator direct stability index. For complex operation scenarios during off-peak hours, the second combined weight of the elevator indirect stability index and the elevator direct stability index is assigned according to volatility, and the second combined weight of the side with smaller volatility is larger. The elevator stability index for complex operation scenarios during off-peak hours is obtained by weighted summing the second combined weight, the elevator indirect stability index and the elevator direct stability index.

7. The method for monitoring elevator operation stability according to claim 3, characterized in that: The elevator stability index of complex operation scenarios during peak hours is combined with the elevator stability index of non-complex operation scenarios to obtain the comprehensive elevator stability index during peak hours, including: The complex operation scenarios and non-complex operation scenarios during peak hours are divided by the occurrence conditions of complex operation scenarios during peak hours, and the third combined weights of the two scenarios are assigned respectively by comparing the respective duration proportions of the complex operation scenarios and the non-complex operation scenarios. The comprehensive elevator stability index during peak hours is obtained by weighted summing the third combined weights, the elevator stability index of the complex operation scenarios and the elevator stability index of the non-complex operation scenarios.

8. The method for monitoring elevator operation stability according to claim 3, characterized in that: The elevator stability index of the complex operation scenario during the off-peak period is combined with the elevator stability index of the non-complex operation scenario to obtain the comprehensive elevator stability index during the off-peak period, including: The conditions for the occurrence of complex operation scenarios during off-peak hours are used to divide the complex operation scenarios and non-complex operation scenarios during off-peak hours. The fourth combined weight is assigned to the two scenarios by comparing their respective duration proportions. The comprehensive elevator stability index during off-peak hours is obtained by taking the weighted sum of the fourth combined weight, the elevator stability index of the complex operation scenario and the elevator stability index of the non-complex operation scenario.

9. A monitoring system for elevator operation stability, characterized in that: include: The first module is used to define each operation node in the operation process of the elevator, divide the operation process into multiple operation stages according to the operation nodes, configure and continuously monitor the direct stability parameters of each operation stage, obtain the daily use log of the target elevator, and determine the peak and low use periods of the target elevator and the conditions for the occurrence of complex operation scenarios according to the daily use log of the target elevator; The second module is used to obtain the elevator-related parameters of the target elevator during the peak and low-peak periods. The elevator-related parameters include load, direct stability parameters, indirect stability parameters and condition parameters. The condition parameters and the occurrence conditions of complex operation scenarios are used to detect whether there are complex operation scenarios during the peak and low-peak periods. The third module is used to integrate each operation stage if there are complex operation scenarios during peak and off-peak periods, and to determine the indirect stability index of the elevator under the complex operation scenario through load and indirect stability parameters, and to determine the direct stability index of the elevator under the complex operation scenario through load and direct stability parameters; The fourth module is used to combine the elevator indirect stability index and the elevator direct stability index to respectively determine the elevator stability index of the complex operation scenario during the peak period and the elevator stability index of the complex operation scenario during the off-peak period, and simultaneously calculate the elevator stability index of the non-complex operation scenario during the high and low peak periods; The fifth module is used to combine the elevator stability index of complex operation scenarios during peak use periods with the elevator stability index of non-complex operation scenarios to obtain the comprehensive elevator stability index during peak use periods, and to combine the elevator stability index of complex operation scenarios during off-peak use periods with the elevator stability index of non-complex operation scenarios to obtain the comprehensive elevator stability index during off-peak use periods. The comprehensive elevator stability index is output according to the comprehensive elevator stability index of high and low peak use periods, so as to monitor the elevator operation stability.

Images