Method, device and equipment for handling elevator door opening failure and storage medium

Abstract

The application discloses a kind of elevator door opening fault processing method, device, equipment and storage medium, the method includes: the displacement variation of the lock hook in elevator door is acquired, and the output torque of the power device for providing power for the elevator door is acquired;Based on the displacement variation and the output torque, the lock hook is detected abnormally;If the lock hook is detected abnormally, the elevator door is controlled to be closed and opened multiple times, to retreat the abnormal lock hook, until the lock hook is abnormal.In the present application, according to the displacement variation of the lock hook and the output torque of the power device to the elevator door, it is quickly judged whether the lock hook is abnormal, when the lock hook is abnormal, the elevator door is controlled to be closed and opened multiple times, so that the lock hook can be normal after being separated from abnormal, so that the elevator door can be normally opened, the exclusion time of elevator door opening abnormality is shortened, and then the user is avoided to transfer other elevators, and the use rate of elevator is improved.

Description

Technical Field

[0001] This application relates to the field of elevator control technology, and in particular to a method, apparatus, equipment and storage medium for handling elevator door opening failure. Background Technology

[0002] As buildings become taller and taller, the need for elevators increases. In elevator systems, the door operator is a crucial component in ensuring the normal operation of elevators.

[0003] The door operator ensures the normal opening and closing of the elevator car and landing doors. If the door operator malfunctions during door opening or closing at a landing, the elevator will stop to prevent injury to passengers. The main reason for door operator malfunctions is that the door blade in the door operator fails to retract properly when the elevator door is opening. In this case, the control motor will continue to increase torque to attempt to retract the door blade and open the elevator door. If, after a certain period, the door still cannot be opened, the door will close and then reopen, repeating this cycle until the door is opened. However, this process, due to the excessive time required to troubleshoot and diagnose the malfunction, causes users to switch to other elevators, resulting in a decrease in elevator utilization. Summary of the Invention

[0004] The main objective of this application is to provide a method, apparatus, equipment, and storage medium for handling elevator door opening malfunctions, aiming to solve the technical problem in the prior art where the troubleshooting time for elevator door opening abnormalities is too long, and the abnormality diagnosis time is too long, causing users to switch to other elevators and resulting in a decrease in elevator utilization.

[0005] To achieve the above objectives, this application provides a method for handling elevator door opening malfunctions, the method comprising:

[0006] The displacement change of the locking hook in the elevator door is obtained, and the output torque of the power device that provides power to the elevator door is obtained;

[0007] Based on the displacement change and the output torque, anomaly detection is performed on the locking hook;

[0008] If an abnormality is detected in the locking hook, the elevator door is controlled to open and close multiple times to retract the abnormal locking hook until the abnormality is resolved.

[0009] Optionally, the step of controlling the elevator door to open and close multiple times to retract the abnormal lock hook if an abnormality is detected, until the abnormality of the lock hook is resolved, includes:

[0010] If an abnormality is detected in the locking hook, the retraction point of the elevator door is determined based on the current position of the elevator door and the number of times the locking hook has malfunctioned.

[0011] The retraction process of the elevator door is monitored to determine whether the elevator door has reached the retraction point;

[0012] The elevator door retraction process is executed based on a preset closing command from the power unit;

[0013] If the elevator door reaches the retraction point, the elevator door is controlled to open again, and the lock hook is checked for abnormality again until the lock hook is released from the abnormality.

[0014] Optionally, the step of determining the retraction point of the elevator door based on the current position of the elevator door and the number of times the lock hook malfunction is detected when the malfunction is detected includes:

[0015] If an abnormality is detected in the locking hook, the number of times the locking hook is abnormal is recorded;

[0016] Based on the number of abnormal occurrences, the retraction distance of the elevator door is determined;

[0017] Wherein, as the number of abnormal occurrences increases, the rollback distance also increases;

[0018] Based on the current position of the elevator door and the retraction distance, the retraction point of the elevator door is determined.

[0019] Optionally, the step of controlling the elevator door to reopen and re-detecting the lock hook for abnormality if the elevator door reaches the retraction point, until the lock hook is deactivated, includes:

[0020] If the elevator door reaches the retraction point, the power unit is controlled to terminate the preset door closing command;

[0021] After confirming that the power unit has completed the preset door closing command, the elevator door is controlled to open again, and the lock hook is checked for abnormality again until the lock hook is released from the abnormality.

[0022] Optionally, the step of determining that the power device has completed the preset door closing command includes:

[0023] A test command is issued to the power unit, and the test results are obtained;

[0024] If the detection result indicates that the power device has not executed the detection command, then the detection command is reissued to the power device until the power device executes the detection command, so as to determine that the power device has ended the preset door closing command.

[0025] Optionally, the step of detecting anomalies in the locking hook based on the displacement change and the output torque includes:

[0026] The output torque is compared with a preset dangerous torque for judgment;

[0027] When the output torque is greater than the dangerous torque, the displacement change is analyzed to determine whether the displacement change is abnormal.

[0028] If the displacement change is abnormal, and the duration of the abnormal displacement change is longer than a preset time period, then the locking hook is determined to be abnormal.

[0029] Optionally, before the step of comparing the output torque with a preset dangerous torque, the method includes:

[0030] Acquire historical control data when the elevator door is opened;

[0031] Extract historical torque and historical fault torque from the historical control data;

[0032] The average torque of the difference between the historical fault torque and the historical torque is determined by comparing the historical fault torque with the historical torque.

[0033] Analyze the historical torques to determine the normal torque required for the elevator door to open normally the most recent time;

[0034] The average torque is summed with the normal torque to determine the critical torque for the current time period.

[0035] This application also provides a device for handling elevator door opening failure, the device comprising:

[0036] The first acquisition module is used to acquire the displacement change of the locking hook in the elevator door and to acquire the output torque of the power device that provides power to the elevator door.

[0037] The monitoring module is used to detect anomalies in the locking hook based on the displacement change and the output torque.

[0038] The control module is used to control the elevator door to open and close multiple times if an abnormality is detected in the locking hook, so as to retract the abnormal locking hook until the abnormality is resolved.

[0039] This application also provides an elevator door opening failure processing device, which includes: a memory, a processor, and a program for the elevator door opening failure processing method stored in the memory and executable on the processor. When the program for the elevator door opening failure processing method is executed by the processor, it can implement the steps of the elevator door opening failure processing method as described above.

[0040] This application also provides a storage medium storing a program that implements the above-described elevator door opening failure handling method. When the program is executed by a processor, it implements the steps of the elevator door opening failure handling method as described above.

[0041] This application provides a method, apparatus, device, and storage medium for handling elevator door opening malfunctions. Compared with the prior art where the troubleshooting and diagnosis of elevator door opening malfunctions are too time-consuming, causing users to switch to other elevators and resulting in a decrease in elevator utilization, this application obtains the displacement change of the locking hook in the elevator door and the output torque of the power device that provides power to the elevator door; based on the displacement change and the output torque, the locking hook is detected for malfunction; if the locking hook is detected to be malfunction, the elevator door is controlled to open and close multiple times to retract the malfunctioning locking hook until the locking hook is deactivated. In this application, the displacement change of the locking hook in the elevator door is obtained, along with the output torque provided by the power unit to the elevator door. Based on the output torque and displacement change, the locking hook is quickly detected for abnormalities. If the locking hook is abnormal, the elevator door is controlled to perform multiple opening and closing movements until the elevator door can be opened normally. That is, in this application, the displacement change of the locking hook and the output torque of the power unit to the elevator door are used to quickly determine whether the locking hook is abnormal. When the locking hook is abnormal, the elevator door is controlled to perform multiple opening and closing movements until the locking hook is disengaged from the abnormality, and then the elevator door can be opened normally. This shortens the time for troubleshooting elevator door opening abnormalities, thereby avoiding users having to transfer to other elevators and improving the utilization rate of elevators. Attached Figure Description

[0042] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0043] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0044] Figure 1 This is a flowchart illustrating the first embodiment of the elevator door opening failure handling method of this application;

[0045] Figure 2 This is a schematic diagram illustrating the handling process for elevator door opening failures in this application;

[0046] Figure 3 This is a schematic diagram of the device structure of the hardware operating environment involved in the embodiments of this application;

[0047] Figure 4 This is a network topology diagram of the elevator door opening failure handling system of this application;

[0048] Figure 5 This is a flowchart illustrating the second embodiment of the method for handling elevator door opening failure according to this application.

[0049] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0050] It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.

[0051] This application provides a method for handling elevator door opening failure. In the first embodiment of this application's method for handling elevator door opening failure, refer to... Figure 1 The method for handling elevator door opening malfunctions includes:

[0052] Step S10: Obtain the displacement change of the locking hook in the elevator door, and obtain the output torque of the power device that provides power to the elevator door;

[0053] Step S20: Based on the displacement change and the output torque, perform anomaly detection on the locking hook;

[0054] Step S30: If the lock hook is detected to be abnormal, the elevator door is controlled to open and close multiple times to retract the abnormal lock hook until the abnormal lock hook is released.

[0055] The purpose of this embodiment is to shorten the time for automatic handling of elevator doors when they malfunction, thereby reducing the need for users to transfer to other elevators and improving elevator utilization.

[0056] In this embodiment, it should be noted that the method for handling elevator door opening failure can be applied to an elevator door opening failure handling device, which is subordinate to an elevator door opening failure handling equipment, which is part of an elevator door opening failure handling system.

[0057] Reference Figure 4It should be noted that the elevator door opening malfunction handling system includes the elevator controller, the elevator door, and the door operator. The door operator contains a power unit that drives the elevator door, and this power unit contains a closing command. The door operator also contains a locking hook to lock the elevator door. The closing command is only executed by the power unit when an abnormality is detected in the locking hook and the elevator controller disconnects its control over the door operator. In other words, the closing command is only executed by the power unit when an abnormality is detected in the elevator door and the elevator controller disconnects its control over the door operator.

[0058] It should be noted that the elevator controller is used to control the door operator to close and open the elevator door; it is also used to monitor the displacement changes of the elevator door when it is opening or closing, and the output torque of the power unit, and to determine whether the door lock is abnormal when it is opening based on the output torque and displacement changes; it is also used to determine the control of the door operator based on the displacement changes when the lock is abnormal.

[0059] It should be noted that the locking hook moves with the elevator door, and the displacement of the locking hook can also be considered the displacement of the elevator door. Under normal circumstances, the displacement of the elevator door decreases uniformly at the beginning and end of its movement. When the locking hook malfunctions, its displacement will suddenly decrease, possibly to zero or even very close to zero.

[0060] It should be noted that due to the complexity of the door operator's mechanical mechanism, if the locking hook malfunctions when the elevator door opens, it may be because the locking hook is stuck in the mechanical mechanism inside the door operator, preventing it from moving normally. Performing the opening and closing motion of the elevator door can help pull the locking hook out of the mechanical mechanism when the door closes, and then reopening the door until it opens normally. In other words, the locking hook is not stuck in the mechanical mechanism when the elevator door opens.

[0061] In this embodiment, based on the output torque provided by the power unit to the elevator door and the displacement change of the locking hook, it is quickly determined whether the locking hook is in an abnormal state, that is, whether the elevator door is abnormal. When the elevator door is abnormal, the elevator door is controlled to perform a reciprocating opening and closing motion, so that the locking hook is completely disengaged from the mechanical mechanism and the elevator door is opened normally.

[0062] In this embodiment, refer to Figure 2 , Figure 2 This is a schematic diagram illustrating the handling process for elevator door opening failures in this application.

[0063] The specific steps are as follows:

[0064] Step S10: Obtain the displacement change of the locking hook in the elevator door, and obtain the output torque of the power device that provides power to the elevator door;

[0065] Among them, the output torque corresponds to Figure 2 The torque for opening the door and releasing the knife during operation.

[0066] In this embodiment, the elevator controller monitors the elevator door in real time. When the elevator door receives an opening command, it acquires the output torque of the power unit to the elevator door and the displacement change of the elevator door during opening or closing. If the elevator door is found to be opening normally, the output torque provided by the power unit is defined as the normal torque. For example, if the elevator door is opened normally when the power unit provides an output torque of 100 N·m, then 100 N·m is defined as the normal torque required to open the elevator door.

[0067] Step S20: Based on the displacement change and the output torque, perform anomaly detection on the locking hook;

[0068] In some cases, the elevator door may not open completely under abnormal conditions, and the door may suddenly stop opening if the latch is stuck.

[0069] It should be noted that when the elevator door is opening normally, the displacement of the locking hook remains constant. That is, the elevator door opens at a uniform speed. The displacement rate decreases uniformly only at the very beginning and briefly before the door closes, to prevent damage from inertial forces. When the locking hook is jammed by the mechanical mechanism, the displacement suddenly drops to near zero, meaning the position of the elevator door or locking hook does not change significantly.

[0070] In this embodiment, when the locking hook is stuck, the power device will increase the torque and increase the force on the locking hook so that the locking hook can continue to move. When the torque is greater than a certain value of the normal torque, the displacement change is detected. If the displacement change is detected to be abnormal, it is determined that the locking hook is stuck by the mechanical mechanism, that is, the locking hook is abnormal.

[0071] It should be noted that the locking hook being stuck in the mechanical mechanism can be divided into two situations. One situation occurs when the power unit increases its output torque to increase the force applied to the locking hook, causing the hook to disengage from the mechanical mechanism without damage to either the hook or the mechanism. In this case, the output torque is less than the preset danger torque. The other situation occurs when the power unit's output torque is equal to or greater than the danger torque, but the locking hook does not disengage from the mechanical mechanism. In the first situation, the elevator door can be opened normally, meaning the locking hook moves normally. In the second situation, the elevator door cannot be opened normally, and the power unit operates at an output torque not less than the danger torque for an extended period, which can lead to overload or overheating of the power unit, reducing its service life and posing a safety hazard to users.

[0072] In this embodiment, the anomaly detection for displacement changes specifically involves determining the duration of the anomaly when an anomaly is detected. If the anomaly duration is less than a preset time, the displacement changes after the locking hook need to be monitored and assessed until the elevator door is opened normally. If the duration of the anomaly is greater than the preset time period, the locking hook is determined to be abnormal, i.e., the elevator door is abnormal. The preset time period is measured in microseconds or milliseconds.

[0073] Specifically, the step of detecting anomalies in the locking hook based on the displacement change and the output torque includes:

[0074] Step S21: Compare the output torque with the preset dangerous torque for judgment;

[0075] It should be noted that the critical torque can be the minimum torque that can damage the power unit or mechanical mechanism. Excessive torque provided by the power unit should be avoided, as it can damage the power unit or mechanical mechanism and thus shorten the elevator's service life.

[0076] For example, when the power unit outputs a torque of 200 N·m, the heat generated by the power unit begins to exceed the normal heat generation. When the mechanical mechanism is subjected to a torque of 230 N·m, the mechanical mechanism begins to show signs of damage. Therefore, 200 N·m is set as a dangerous torque.

[0077] Step S22: When the output torque is greater than the dangerous torque, analyze the displacement change to determine whether the displacement change is abnormal.

[0078] It should be noted that when there is an abnormality in the displacement change, the locking hook may or may not show an abnormality. For example, when the locking hook is first jammed by the mechanical mechanism, the displacement change of the locking hook may suddenly become abnormal. By gradually increasing the output torque and allowing the locking hook to break free from the mechanical mechanism within a preset time period, the displacement change will return to normal. At this time, the locking hook is in a normal state.

[0079] For example, if the preset time period is 0-100 microseconds, and the duration of the abnormal displacement change is 87 microseconds, after the abnormality occurs, as the torque of the power device gradually increases, and after 87 microseconds, the locking hook disengages from the mechanical mechanism, and the displacement change returns to normal, then the locking hook is determined to be in a normal state.

[0080] Step S23: If the displacement change is abnormal and the duration of the abnormal displacement change is longer than a preset time period, then the locking hook is determined to be abnormal.

[0081] In this embodiment, if an abnormality in displacement change is detected, and the duration of the abnormal displacement change exceeds a preset time period, the locking hook is determined to be abnormal. For example, the preset time period is 0-100 microseconds. If the displacement change is still abnormal after 100 microseconds, the locking hook is determined to be abnormal. If the output torque of the locking hook is further increased, it will damage the power unit or the elevator.

[0082] In this embodiment, the system first determines whether the output torque is too high based on a preset danger torque. If the output torque is too high, it indicates that the locking hook is stuck by the mechanical mechanism. Then, it checks whether the locking hook needs to self-process by monitoring the duration of abnormal displacement changes. If the locking hook cannot disengage from the mechanical mechanism within a preset time period, it is determined that the locking hook is malfunctioning, i.e., the elevator door is malfunctioning. This embodiment accurately determines whether the locking hook is malfunctioning by using an abnormal time period, avoiding blind processing by the elevator controller and wasting elevator door opening time. It also prevents overload of the torque provided by the power unit when the locking hook malfunctions, which could damage the elevator.

[0083] Step S30: If the lock hook is detected to be abnormal, the elevator door is controlled to open and close multiple times to retract the abnormal lock hook until the abnormal lock hook is released.

[0084] The elevator's multiple opening and closing movements are planned. When the elevator door closes and reopens, the entire opening process needs to be checked. If an abnormality in the locking hook is detected again, the elevator door needs to be closed again until it opens normally. This is to prevent the torque of the power unit from being increased after an abnormality in the locking hook is detected, which could force the elevator door open and cause damage. Through multiple opening and closing movements, the locking hook can push the mechanical mechanism that is stuck on the locking hook off the locking hook's trajectory, preventing the mechanical mechanism from getting the locking hook stuck again.

[0085] Among them, the elevator door opening action corresponds to Figure 2 The process of opening the door and placing the knife.

[0086] In this embodiment, the planned opening and closing motion can be such that the stroke of closing increases gradually each time. That is, when the elevator door is closed for the first time after the lock hook malfunctions, the shortest stroke is used. After closing the corresponding stroke, when the elevator door is opened again, if the lock hook is still detected to be malfunctioning, the elevator door is closed again, and the stroke of closing this time is greater than the first stroke. This cycle continues until the elevator door is opened normally.

[0087] For example, when the elevator door is closed for the first time after the locking hook malfunctions, the closing travel is 5 centimeters. That is, the elevator door moves 5 centimeters from its current position in the closing direction. After the elevator door moves 5 centimeters, it is switched to the opening motion again. If the locking hook malfunctions again, the elevator door is closed a second time, and the closing travel is 8 centimeters. That is, the closing travel increases each time until the elevator door is opened normally.

[0088] In this embodiment, when the door operator receives an opening command, it monitors the elevator door. If an abnormality is detected in the door's locking hook, it acquires the output torque provided by the power unit and the displacement change of the locking hook. If the output torque exceeds a preset danger torque and the abnormal displacement change persists for a longer than a preset time period, it is determined that the locking hook is jammed by the mechanical mechanism. Through planned opening and closing movements, the elevator door is controlled to perform multiple closing and opening movements until the elevator door is opened normally. In this embodiment, by promptly judging the abnormality in the displacement change, the locking hook abnormality can be detected quickly and accurately, avoiding excessively long detection time for the elevator door. Furthermore, by planning the opening and closing movements of the elevator door, the abnormality is quickly eliminated, and the elevator door can be used normally again.

[0089] This application provides a method, apparatus, device, and storage medium for handling elevator door opening malfunctions. Compared with the prior art where the troubleshooting and diagnosis of elevator door opening malfunctions are too time-consuming, causing users to switch to other elevators and resulting in a decrease in elevator utilization, this application obtains the displacement change of the locking hook in the elevator door and the output torque of the power device that provides power to the elevator door; based on the displacement change and the output torque, the locking hook is detected for malfunction; if the locking hook is detected to be malfunction, the elevator door is controlled to open and close multiple times to retract the malfunctioning locking hook until the locking hook is deactivated. In this application, the displacement change of the locking hook in the elevator door is obtained, along with the output torque provided by the power unit to the elevator door. Based on the output torque and displacement change, the locking hook is quickly detected for abnormalities. If the locking hook is abnormal, the elevator door is controlled to perform multiple opening and closing movements until the elevator door can be opened normally. That is, in this application, the displacement change of the locking hook and the output torque of the power unit to the elevator door are used to quickly determine whether the locking hook is abnormal. When the locking hook is abnormal, the elevator door is controlled to perform multiple opening and closing movements until the locking hook is disengaged from the abnormality, and then the elevator door can be opened normally. This shortens the time for troubleshooting elevator door opening abnormalities, thereby avoiding users having to transfer to other elevators and improving the utilization rate of elevators.

[0090] Furthermore, based on the above embodiments of this application, another embodiment of this application is provided, in which reference is made to... Figure 5The step of controlling the elevator door to open and close multiple times to retract the abnormal lock hook if an abnormality is detected, until the abnormality is resolved, includes:

[0091] Step S01: If an abnormality is detected in the locking hook, the retraction point of the elevator door is determined based on the current position of the elevator door and the number of times the locking hook is abnormal.

[0092] In this embodiment, after detecting an abnormality in the locking hook, the elevator door is made to close. When the elevator door is closing, the elevator controller needs to disconnect the control of the power unit so that the preset closing command in the power unit controls the elevator door to close. If the elevator controller repeatedly switches control commands, and the elevator door also needs to be monitored when switching control commands, it will increase the workload of the elevator controller. Furthermore, repeatedly switching control commands will cause the elevator controller to enter a self-protection state.

[0093] Specifically, the step of determining the elevator door's retraction point based on the current position of the elevator door and the number of times the lock hook malfunction is detected includes:

[0094] Step S011: If an abnormality is detected in the locking hook, the number of abnormalities in the locking hook is recorded.

[0095] Step S012: Based on the number of abnormalities, determine the retraction distance of the elevator door;

[0096] Wherein, as the number of abnormal occurrences increases, the rollback distance also increases;

[0097] Step S013: Determine the retraction point of the elevator door based on the current position of the elevator door and the retraction travel distance.

[0098] In this embodiment, when an abnormality is detected in the locking hook, the number of times the locking hook is abnormal needs to be recorded. Based on the number of abnormalities, the retraction stroke of the elevator door is planned. The greater the number of closing times, the greater the retraction stroke. This can prevent the locking hook from failing to disengage from the mechanical structure during the first elevator door retraction process. If the locking hook remains stuck in the mechanical mechanism after the elevator door is closed again, the door can be opened as soon as the hook disengages from the mechanical mechanism through multiple retractions with progressively increasing retraction strokes. This saves time in troubleshooting elevator door opening abnormalities.

[0099] In this embodiment, when planning the retraction stroke of the elevator door, it is necessary to determine the total stroke of the elevator door from the start of the opening action to the time when the abnormality occurs, and plan the retraction stroke based on the total stroke of the elevator door.

[0100] It should be noted that the elevator's reversing travel cannot exceed 50% of the total travel of the elevator door opening.

[0101] In this embodiment, the retraction distance can be planned based on the percentage of the total travel distance of the elevator door opening, or the retraction distance for each time can be directly determined. For example, the retraction distance for the first retraction is 1% of the total travel distance, the second is 2% of the total travel distance, the third is 3% of the total travel distance, and so on. Alternatively, the first retraction distance can be 5 cm, the second retraction distance is 10 cm, the third retraction distance is 15 cm, and so on.

[0102] It should be noted that when using the second type of retraction travel planning, if the elevator door malfunctions when the total door opening travel does not meet the first retraction travel, the retraction will be based on the total door opening travel. For example, if the total door opening travel is 3 centimeters and the first retraction travel is 5 centimeters, then the elevator door's retraction travel will be 3 centimeters.

[0103] In this embodiment, by planning the retraction stroke of the elevator door, it is determined that after an abnormality occurs in the elevator door, the elevator door will be closed according to the retraction stroke. This can minimize the retraction time and increase the time for the elevator door to resolve the abnormality. Furthermore, by gradually increasing the retraction stroke of the elevator door, it can be ensured that the locking hook can disengage from the mechanical mechanism during the retraction process, allowing the locking hook to slide normally.

[0104] Step S02: Monitor the retraction process of the elevator door to determine whether the elevator door has reached the retraction point;

[0105] The elevator door retraction process is executed based on a preset closing command from the power unit;

[0106] In this embodiment, the retraction process of the elevator door can be monitored by a position sensor installed on the elevator door. That is, during the retraction process of the elevator door, the relative position between the elevator doors can be detected by the position sensor installed on the elevator door, thereby detecting the retraction process of the elevator door.

[0107] In this embodiment, since the elevator door may need to be opened and closed multiple times during the retraction process, if the retraction command is entirely determined by the elevator control system, it would increase the computation of the elevator control system. Furthermore, the constant switching between opening and closing commands by the elevator door control system could trigger self-protection, completely cutting off control of the elevator and causing danger. By using a preset closing command from the power unit, the elevator door can be retracted even if the opening command from the elevator control system remains unchanged. Since the command from the elevator control system remains constant, it will not cause damage to the elevator control system.

[0108] Step S03: If the elevator door reaches the retraction point, control the elevator door to open again, and perform anomaly detection on the locking hook again until the locking hook is released from the anomaly.

[0109] In this embodiment, since the position of the locking hook stuck in the mechanical mechanism is uncertain, the retraction stroke of the locking hook cannot be accurately determined. After the elevator door is controlled again, it is uncertain whether the locking hook is still stuck in the mechanical mechanism when the elevator door opens. Therefore, it is necessary to perform anomaly detection on the locking hook again until the elevator door is opened normally.

[0110] Specifically, the step of controlling the elevator door to reopen and re-detecting the lock hook for any abnormality if the elevator door reaches the retraction point, until the lock hook is deactivated, includes:

[0111] Step A10: If the elevator door reaches the retraction point, control the power unit to end the preset door closing command;

[0112] Step A20: After determining that the power unit has completed the preset door closing command, control the elevator door to open again, and perform anomaly detection on the locking hook again until the locking hook is released from the anomaly.

[0113] In this embodiment, the elevator door's closing travel distance is monitored. Based on a planned retraction distance, when the closing travel distance equals the retraction distance, the elevator controller regains control of the door operator and controls the elevator door to open. During opening, the locking hook is checked again for abnormalities until the elevator door is opened normally. Monitoring the elevator door's closing travel distance and re-controlling the door opening when the travel distance equals the planned retraction distance reduces the retraction time, thus reducing the time needed to troubleshoot elevator door opening abnormalities.

[0114] Specifically, the step of determining that the power device has completed the preset door closing command includes:

[0115] Step B10: Issue a test command to the power unit and obtain the test result;

[0116] Step B20: If the detection result indicates that the power device has not executed the detection command, then a new detection command is issued to the power device until the power device executes the detection command, so as to determine that the power device has ended the preset door closing command.

[0117] It should be noted that the detection command can be a command to reverse a preset angle. If the power unit rotates clockwise when closing the door, it will rotate counterclockwise when opening the door. When the power unit executes the closing command, the detection command controls the power unit to rotate counterclockwise by a preset angle. If the power unit rotates counterclockwise by the preset angle, the detection result is determined to be that the power unit has ended the closing command; if the power unit does not rotate counterclockwise by the preset angle, the detection result is determined to be that the power unit has not ended the closing command.

[0118] In this embodiment, during the planned reversal, it is necessary to detect whether the preset door closing command in the power unit has ended. If the power unit has not ended the door closing command, a new detection command is issued to the power unit until the power unit executes the detection command, that is, the preset door closing command in the power unit ends. This is to prevent the elevator controller from entering a self-protection state if the power unit fails to end the door closing command, which could lead to the elevator going out of control and causing harm to passengers.

[0119] In this embodiment, when the power unit is re-controlled, the elevator controller's door opening command remains unchanged. That is, when troubleshooting the elevator, the elevator controller's command to the elevator is always the door opening command. When it is necessary to close the door, the elevator controller disconnects the control of the power unit and only monitors the elevator, so that the door closing command in the door operator controls the elevator door, thereby preventing the elevator controller from entering the protection state.

[0120] Furthermore, based on the above embodiments of this application, another embodiment of this application is provided. In this embodiment, before the step of comparing the output torque with a preset dangerous torque, the method includes:

[0121] Step C10: Obtain historical control data when the elevator door is opened;

[0122] Step C20: Extract historical torque and historical fault torque from the historical control data;

[0123] Step C30: Compare and calculate the historical fault torque with the historical torque to determine the average torque of the difference between the historical fault torque and the historical torque;

[0124] Step C40: Analyze the historical torque to determine the normal torque required for the elevator door to open normally the most recent time;

[0125] Step C50: Sum the average torque and the normal torque to determine the critical torque for the current time period.

[0126] The historical control data can be the historical data of the elevator controller controlling the opening of the elevator door. The historical data should include at least the data of abnormalities when the elevator door is opened, that is, the torque provided by the power unit when the elevator door cannot be opened normally (historical fault torque) and the torque provided by the power unit when the elevator door is opened normally (historical torque).

[0127] In this process, once the elevator door opens, the control data for opening the elevator door is recorded in real time into the historical control data to update the historical control data in real time.

[0128] The control data includes at least the torque provided by the power unit when the elevator door opens.

[0129] It should be noted that the normal torque is the torque provided by the power unit when the elevator door was last opened normally. As the elevator is used over time, the lifespan of the power unit decreases, and the minimum torque at which the power unit can withstand damage also decreases. If the same critical torque is continuously used, as the elevator's usage time increases, the critical torque will gradually exceed the minimum torque at which the power unit will be damaged, thus rapidly reducing the lifespan of the power unit. Calculating the critical torque by using the torque provided by the power unit when the elevator door was last opened normally allows for real-time updates to the critical torque, ensuring that the critical torque is applicable to the current time period.

[0130] In this embodiment, the average torque is obtained by calculating the difference between historical fault torque and historical torque, and then averaging these differences. That is, the average difference between the normal torque (historical torque) and the critical torque (historical fault torque) in the historical control data. The critical torque for the current time period is determined by summing the average torque with the most recent normal torque. In this embodiment, the critical torque of the elevator can be updated in real time based on the elevator's usage, so that the critical torque better adapts to the current elevator conditions and reduces judgment errors.

[0131] The critical torque is equal to the average torque plus the normal torque.

[0132] It should be noted that as elevators are used over time, the lifespan of the door operator gradually decreases with the number of times the elevator doors are opened and closed. Furthermore, the critical torque also decreases when the lifespan of the door operator declines to a certain extent. By obtaining historical control data when the elevator doors are opened to determine the critical torque, the elevator can be better managed. Moreover, using the normal torque and critical torque in the historical control data can prevent unexpected situations when the elevator doors are opened.

[0133] For example, if the average difference between historical fault torque and historical torque is 50 N·m, then the average torque is 50 N·m. If the torque provided by the power unit when the elevator door opened normally the most recent time was 90 N·m, then the normal torque is 90 N·m. By summing the average torque and the normal torque, the current dangerous torque is calculated to be 140 N·m, which means the minimum torque that can cause damage to the power unit or mechanical mechanism is 140 N·m. If, within a certain period of time, the elevator door is opened at 100 N·m once, and at 90 N·m the rest of the time, then opening the elevator door at 100 N·m is considered a sudden situation. If 100 N·m is taken as the normal torque (historical torque), then the final dangerous torque is 150 N·m. That is, the current dangerous torque is greater than the minimum torque that can cause damage to the power unit or mechanical mechanism, thus causing damage to the power unit or mechanical mechanism.

[0134] In this embodiment, by analyzing historical control data when the elevator door opens, the dangerous torque of the power unit is determined based on the elevator's usage, so as to better monitor the elevator and improve the accuracy of detecting elevator door anomalies.

[0135] Reference Figure 3 , Figure 3 This is a schematic diagram of the device structure of the hardware operating environment involved in the embodiments of this application.

[0136] like Figure 3 As shown, the device for handling elevator door opening failures may include: a processor 1001, such as a CPU, a memory 1005, and a communication bus 1002. The communication bus 1002 is used to establish communication between the processor 1001 and the memory 1005. The memory 1005 may be a high-speed RAM or a stable, non-volatile memory, such as a disk drive. Optionally, the memory 1005 may also be a storage device independent of the aforementioned processor 1001.

[0137] Optionally, the elevator door opening malfunction handling device may also include a rectangular user interface, a network interface, a camera, RF (Radio Frequency) circuitry, sensors, audio circuitry, a WiFi module, etc. The rectangular user interface may include a display screen and an input submodule such as a keyboard. Optionally, the rectangular user interface may also include a standard wired interface or a wireless interface. The network interface may optionally include a standard wired interface or a wireless interface (such as a Wi-Fi interface).

[0138] Those skilled in the art will understand that Figure 3The elevator door opening failure handling equipment shown in the figure does not constitute a limitation on the elevator door opening failure handling equipment, and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0139] like Figure 3 As shown, the memory 1005, serving as a storage medium, may include an operating system, a network communication module, and a process for handling elevator door opening malfunctions. The operating system is a program that manages and controls the hardware and software resources of the elevator door opening malfunction handling device, supporting the operation of the elevator door opening malfunction handling program and other software and / or programs. The network communication module is used to enable communication between the various components within the memory 1005, as well as communication with other hardware and software in the elevator door opening malfunction handling system.

[0140] exist Figure 3 In the elevator door opening failure handling device shown, the processor 1001 is used to execute the elevator door opening failure handling program stored in the memory 1005 to implement the steps of the elevator door opening failure handling method described in any of the above claims.

[0141] The specific implementation method of the elevator door opening failure handling device in this application is basically the same as the above-mentioned elevator door opening failure handling method embodiments, and will not be repeated here.

[0142] This application also provides a device for handling elevator door opening failure, the device comprising:

[0143] The first acquisition module is used to acquire the displacement change of the locking hook in the elevator door and to acquire the output torque of the power device that provides power to the elevator door.

[0144] The monitoring module is used to detect anomalies in the locking hook based on the displacement change and the output torque.

[0145] The control module is used to control the elevator door to open and close multiple times if an abnormality is detected in the locking hook, so as to retract the abnormal locking hook until the abnormality is resolved.

[0146] Optionally, the control module includes:

[0147] The determination module is used to determine the retraction point of the elevator door based on the current position of the elevator door and the number of times the lock hook malfunction is detected if the malfunction is detected.

[0148] The detection submodule is used to monitor the retraction process of the elevator door and determine whether the elevator door has reached the retraction point.

[0149] The elevator door retraction process is executed based on a preset closing command from the power unit;

[0150] The anomaly resolution module is used to control the elevator door to open again and re-detect the lock hook for anomalies if the elevator door reaches the retraction point, until the lock hook is deactivated.

[0151] Optionally, the determining module includes:

[0152] A recording module is used to record the number of times the lock hook is abnormal if an abnormality is detected.

[0153] The first determining submodule is used to determine the retraction distance of the elevator door based on the number of anomalies.

[0154] Wherein, as the number of abnormal occurrences increases, the rollback distance also increases;

[0155] The second determining module is used to determine the retraction point of the elevator door based on the current position of the elevator door and the retraction travel distance.

[0156] Optionally, the exception resolution module includes:

[0157] The control submodule is used to control the power unit to end the preset door closing command if the elevator door reaches the retraction point;

[0158] The anomaly resolution submodule is used to control the elevator door to open again after determining that the power unit has completed the preset door closing command, and to perform anomaly detection on the locking hook again until the locking hook is deactivated.

[0159] Optionally, the exception resolution submodule includes:

[0160] The detection unit is used to issue detection commands to the power device and obtain detection results;

[0161] The exit module is used to reissue the detection command to the power device if the detection result indicates that the power device has not executed the detection command, until the power device executes the detection command, so as to determine that the power device has ended the preset door closing command.

[0162] Optionally, the monitoring module includes:

[0163] The judgment module is used to compare the output torque with a preset dangerous torque for judgment;

[0164] The analysis module is used to analyze the displacement change when the output torque is greater than the dangerous torque, and to determine whether the displacement change is abnormal.

[0165] The determination module is used to determine that the locking hook is abnormal if the displacement change is abnormal and the duration of the abnormal displacement change is longer than a preset time period.

[0166] Optionally, the elevator door opening failure handling device further includes:

[0167] The second acquisition module is used to acquire historical control data when the elevator door is opened;

[0168] The extraction module is used to extract historical torque and historical fault torque from the historical control data;

[0169] The comparison module is used to compare and calculate the historical fault torque with the historical torque to determine the average torque of the difference between the historical fault torque and the historical torque;

[0170] The analysis submodule is used to analyze the historical torque and determine the normal torque required for the elevator door to open normally the most recent time.

[0171] The calculation module is used to sum the average torque and the normal torque to determine the critical torque for the current time period.

[0172] The specific implementation method of the elevator door opening failure handling device of this application is basically the same as the above-mentioned elevator door opening failure handling method embodiments, and will not be repeated here.

[0173] This application provides a storage medium that stores one or more programs, which can be executed by one or more processors to implement the steps of the elevator door opening failure handling method described in any of the above claims.

[0174] The specific implementation of the storage medium in this application is basically the same as the embodiments of the above-mentioned elevator door opening failure handling method, and will not be described again here.

[0175] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0176] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0177] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of the present invention.

[0178] The above are merely preferred embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention’s specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A method for handling an open door fault of an elevator door, characterized by The methods for handling elevator door opening malfunctions include: The displacement change of the locking hook in the elevator door is obtained, and the output torque of the power device that provides power to the elevator door is obtained; Based on the displacement change and the output torque, anomaly detection is performed on the locking hook; If an abnormality is detected in the locking hook, the elevator door is controlled to open and close multiple times to retract the abnormal locking hook until the abnormality is resolved.

2. The method of claim 1, wherein the door open fault is a door open fault of an elevator door. The step of controlling the elevator door to open and close multiple times to retract the abnormal lock hook if an abnormality is detected, until the abnormality is resolved, includes: If an abnormality is detected in the locking hook, the retraction point of the elevator door is determined based on the current position of the elevator door and the number of times the locking hook has malfunctioned. The retraction process of the elevator door is monitored to determine whether the elevator door has reached the retraction point; The elevator door retraction process is executed based on a preset closing command from the power unit; If the elevator door reaches the retraction point, the elevator door is controlled to open again, and the lock hook is checked for abnormality again until the lock hook is released from the abnormality.

3. The method of claim 2, wherein the door open fault is a door open fault of an elevator door. The step of determining the elevator door's retraction point based on the current position of the elevator door and the number of times the lock hook malfunction is detected includes: If an abnormality is detected in the locking hook, the number of times the locking hook is abnormal is recorded; Based on the number of abnormal occurrences, the retraction distance of the elevator door is determined; Wherein, as the number of abnormal occurrences increases, the rollback distance also increases; Based on the current position of the elevator door and the retraction distance, the retraction point of the elevator door is determined.

4. The method for handling elevator door opening malfunctions as described in claim 2, characterized in that, The step of controlling the elevator door to reopen and re-detecting the lock hook for any abnormality if the elevator door reaches the retraction point, until the lock hook is deactivated, includes: If the elevator door reaches the retraction point, the power unit is controlled to terminate the preset door closing command; After confirming that the power unit has completed the preset door closing command, the elevator door is controlled to open again, and the lock hook is checked for abnormality again until the lock hook is released from the abnormality.

5. The method of claim 4, wherein the door open fault is a door open fault of an elevator door. The step of determining that the power unit has completed the preset door closing command includes: A test command is issued to the power unit, and the test result is obtained; If the detection result indicates that the power device has not executed the detection command, then the detection command is reissued to the power device until the power device executes the detection command, so as to determine that the power device has ended the preset door closing command.

6. The method of claim 1, wherein the door open fault is a door open fault of an elevator door. The step of detecting anomalies in the locking hook based on the displacement change and the output torque includes: The output torque is compared with a preset dangerous torque for judgment; When the output torque is greater than the dangerous torque, the displacement change is analyzed to determine whether the displacement change is abnormal. If the displacement change is abnormal, and the duration of the abnormal displacement change is longer than a preset time period, then the locking hook is determined to be abnormal.

7. The method of claim 6, wherein the door open fault is a door open fault of an elevator door. Before the step of comparing the output torque with a preset dangerous torque, the method includes: Acquire historical control data when the elevator door is opened; Extract historical torque and historical fault torque from the historical control data; The average torque of the difference between the historical fault torque and the historical torque is determined by comparing the historical fault torque with the historical torque. Analyze the historical torques to determine the normal torque required for the elevator door to open normally the most recent time; The average torque is summed with the normal torque to determine the critical torque for the current time period.

8. An elevator door opening failure processing device characterized by comprising: The elevator door opening malfunction handling device includes: The first acquisition module is used to acquire the displacement change of the locking hook in the elevator door and to acquire the output torque of the power device that provides power to the elevator door. The monitoring module is used to detect anomalies in the locking hook based on the displacement change and the output torque. The control module is used to control the elevator door to open and close multiple times if an abnormality is detected in the locking hook, so as to retract the abnormal locking hook until the abnormality is resolved.

9. An elevator door opening failure handling device characterized by comprising: The elevator door opening failure handling device includes: a memory, a processor, and a program stored in the memory for implementing the elevator door opening failure handling method. The memory is used to store a program that implements a method for handling elevator door opening failures; The processor is used to execute a program that implements the elevator door opening failure handling method to implement the steps of the elevator door opening failure handling method as described in any one of claims 1 to 7.

10. A storage medium, characterized by The storage medium stores a program for implementing a method for handling elevator door opening failures. The program for implementing the method for handling elevator door opening failures is executed by a processor to implement the steps of the method for handling elevator door opening failures as described in any one of claims 1 to 7.

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