Elevator people trapping fault processing method and system, electronic device and storage medium

Abstract

The invention relates to an elevator trapped person fault processing method and system, an electronic device and a storage medium, and the elevator trapped person fault processing method comprises the steps that it is judged that a trapped person fault occurs in an elevator; when it is determined that the elevator is located at the non-leveling position, control over the elevator nearby leveling is started; and when starting control over the nearby leveling of the elevator is ineffective, according to the self-rescue signal, the electronic sealing star is controlled to be opened and started under the condition that the elevator is determined to meet the safety condition, so that the elevator slides to the leveling position, and the fault that people are trapped in the elevator is handled in time.

Description

Technical Field

[0001] The present application relates to the field of elevators, and in particular to a method, system, electronic device and storage medium for handling elevator entrapment failures. Background Art

[0002] At present, with the popularity of villa elevators, their safety issues have gradually attracted attention. When an elevator malfunctions, it is easy to cause a person to be trapped. Once a person is trapped, while waiting for rescue, the trapped person is in a small elevator car, which is prone to psychological problems such as fright and panic. Especially for villa elevators used by owners at home, once a person is trapped, it is difficult to be discovered in some extreme cases.

[0003] The rescue process of people trapped in traditional elevators: elevator operation → people trapped → passengers trapped → passengers calling for help → monitoring room receiving → maintenance intervention → passengers rescue → troubleshooting → resuming operation. In the entire rescue process, from passengers calling for help, to the monitoring room receiving the distress signal, and then maintenance intervention, these three links often take up more time. Moreover, when a villa elevator has a trapping fault, the rescue process will be more complicated and lengthy due to the private nature of the villa elevator. In some cases, it may not be possible to respond in time, resulting in people trapped in the car for a long time, or in the absence of emergency contact equipment, passengers may not be able to effectively call for help.

[0004] With regard to the problem in the related technology that elevator entrapment failures cannot be handled in a timely manner, no effective solution has been proposed so far. Summary of the invention

[0005] In this embodiment, a method, system, electronic device and storage medium are provided to handle elevator entrapment faults, so as to solve the problem that elevator entrapment faults cannot be handled in a timely manner in the related art.

[0006] In the first aspect, a method for handling an elevator entrapment fault is provided in this embodiment, including:

[0007] Determining that a person-trapping failure occurs in the elevator;

[0008] When it is determined that the elevator is in a non-leveling position, starting to control the elevator to a leveling position;

[0009] When the start-up control of the elevator to the nearest leveling position is invalid, according to the self-rescue signal, after determining that the elevator meets the safety conditions, the brake is controlled to be opened and the electronic star seal is started to make the elevator slide to the leveling position.

[0010] In some embodiments, determining whether a person-trapping fault occurs in the elevator includes:

[0011] When it is determined that the elevator is in a passenger-carrying state, and it is detected that the elevator has not reached the target floor, no light curtain occlusion signal is obtained, and the elevator is detected to be in a stopped state, it is determined that the elevator has a trapped passenger fault.

[0012] In some embodiments, the determination that the elevator is in a passenger-carrying state includes:

[0013] When the elevator is at a leveling position, obtain the elevator door state, the light curtain occlusion signal, and the in-car registration signal;

[0014] When it is detected that the elevator door has opened and then closed in place, and the light curtain occlusion signal and the in-car registration signal are obtained, it is determined that the elevator is in a passenger-carrying state.

[0015] In some embodiments, when it is determined that the elevator is in a non-leveling position, starting to control the elevator to level nearby includes:

[0016] When it is determined that the elevator is in a non-leveling position, according to the preset number of fault reset times and the reset time interval, repeatedly perform fault clearance and reset, and after each fault clearance and reset, start to control the elevator to run to the nearby leveling position until the elevator is successfully controlled to run to the nearby leveling position;

[0017] When reaching the last time of the preset number of fault reset times, first shield the target logic fault, then perform fault clearance and reset, and then start to control the elevator to run to the nearby leveling position.

[0018] In some embodiments, when the start to control the elevator to level nearby is ineffective, according to the self-rescue signal, when it is determined that the elevator meets the safety conditions, control to open the brake of the elevator and start the electronic star sealing, so that the elevator coasts to the leveling position, including:

[0019] When the start to control the elevator to level nearby is ineffective, first shield the target drive fault, then clear the drive fault, and control the elevator to output guiding self-rescue information;

[0020] When receiving the self-rescue signal, judge whether the elevator meets the safety conditions. When it is determined that the elevator meets the safety conditions, control to open the brake of the elevator and start the electronic star sealing, so that the elevator coasts to the leveling position.

[0021] In some embodiments, the judgment of whether the elevator meets the safety conditions includes:

[0022] When the safety circuit signal of the elevator is conducting, the position of the elevator has not had a loss fault, and the light curtain of the elevator is not blocked, it is judged that the elevator meets the safety conditions; otherwise, it does not meet the safety conditions.

[0023] In some of these embodiments, after determining that the elevator meets the safety conditions, controlling to open the brake of the elevator and start electronic star sealing, so that after the elevator coasts to the leveling position, the method further includes:

[0024] Monitoring the running speed, running time and running position of the elevator in real time;

[0025] Judging whether the running speed of the elevator is greater than a preset speed threshold, and if so, controlling the elevator brake to stop the operation;

[0026] Judging whether the elevator reaches the target leveling position within a preset time period, and if not, controlling the elevator brake to stop the operation;

[0027] Judging whether the elevator is in the blind floor position at the end station, and if so, controlling the elevator brake to stop the operation.

[0028] In a second aspect, in the present embodiment, an elevator entrapment fault handling system is provided, which applies the elevator entrapment fault handling method described in the first aspect above, and includes: an elevator logic control board, a drive control board, a car top control board, a self-rescue button and an electronic star sealing system, wherein:

[0029] The self-rescue button is arranged in the elevator car; the self-rescue button is connected to the car top control board; the car top control board is connected to the elevator logic control board; the drive control board is connected to the elevator logic control board; the elevator logic control board controls the electronic star sealing system; the electronic star sealing system is used to limit the running speed of the elevator during rescue.

[0030] In a third aspect, in the present embodiment, an electronic device is provided, including a memory, a processor, and a computer program stored on the memory and executable on the processor, and when the processor executes the computer program, the elevator entrapment fault handling method described in the first aspect above is implemented.

[0031] In a fourth aspect, in the present embodiment, a storage medium is provided, on which a computer program is stored, and when the program is executed by a processor, the elevator entrapment fault handling method described in the first aspect above is implemented.

[0032] Compared with the related art, in the elevator entrapment fault handling method provided in the present embodiment, by judging that the elevator has an entrapment fault; when it is determined that the elevator is not in the leveling position, starting to control the elevator to level nearby; when the control to level the elevator nearby fails, according to the self-rescue signal, when it is determined that the elevator meets the safety conditions, controlling to open the brake and start electronic star sealing, so that the elevator coasts to the leveling position, the timely handling of the elevator entrapment fault is realized.

[0033] The details of one or more embodiments of the present application are set forth in the following drawings and description to make other features, objects, and advantages of the present application more concise and understandable. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The illustrative embodiments and descriptions thereof of the present application are used to explain the present application and do not constitute an improper limitation of the present application. In the drawings:

[0035] Figure 1 is a hardware structure block diagram of a terminal for the elevator entrapment fault handling method of this embodiment.

[0036] Figure 2 is a flowchart of the elevator entrapment fault handling method of this embodiment.

[0037] Figure 3 is a flowchart of the automatic fault reset of the elevator entrapment fault handling method of this embodiment.

[0038] Figure 4 is a flowchart of another elevator entrapment fault handling method of this embodiment.

[0039] Figure 5 is a schematic diagram of the structure of the elevator entrapment fault handling system of this embodiment. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0040] To more clearly understand the purpose, technical solution, and advantages of the present application, the present application will be described and explained below with reference to the drawings and embodiments.

[0041] Unless otherwise defined, technical or scientific terms used in this application shall have the ordinary meanings as understood by those of ordinary skill in the technical field to which this application pertains. In this application, words such as "a", "an", "one kind", "the", "these", etc. do not indicate a limitation in quantity and can be singular or plural. The terms "including", "comprising", "having" and any variations thereof used in this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or modules (units) is not limited to the listed steps or modules (units), but may include unlisted steps or modules (units), or may include other steps or modules (units) inherent in these processes, methods, products or devices. The terms "connected", "coupled", etc. used in this application do not limit to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The term "plurality" used in this application means two or more. "And / or" describes the association relationship of associated objects and indicates that three relationships may exist. For example, "A and / or B" may represent: A exists alone, A and B exist simultaneously, and B exists alone. Usually, the character " / " indicates that the objects associated before and after are in an "or" relationship. The terms "first", "second", "third", etc. used in this application only distinguish similar objects and do not represent a specific order for the objects.

[0042] The method embodiment provided in this embodiment can be executed on a terminal, a computer, or a similar computing device. For example, when running on a terminal, Figure 1 is the hardware structure block diagram of the terminal of the elevator entrapment fault handling method in this embodiment. As Figure 1 shown, the terminal may include one or more ( Figure 1 only one is shown in the figure) processors 102 and a memory 104 for storing data. Among them, the processor 102 may include, but is not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA. The above terminal may further include a transmission device 106 for communication functions and an input / output device 108. Those of ordinary skill in the art can understand that Figure 1 the structure shown in the figure is only schematic and does not limit the structure of the above terminal. For example, the terminal may further include more or fewer components than Figure 1 shown in the figure, or have a different configuration from Figure 1 shown in the figure.

[0043] The memory 104 can be used to store computer programs, for example, software programs and modules of application software, such as the computer program corresponding to the elevator trapped person fault processing method in this embodiment. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, that is, to implement the above method. The memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include a memory remotely arranged relative to the processor 102, and these remote memories may be connected to the terminal via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0044] The transmission device 106 is used to receive or send data via a network. The above network includes a wireless network provided by the communication provider of the terminal. In one example, the transmission device 106 includes a network adapter (Network Interface Controller, referred to as NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device 106 can be a radio frequency (Radio Frequency, referred to as RF) module, which is used to communicate with the Internet wirelessly.

[0045] In this embodiment, a method for handling a person trapped in an elevator is provided. Figure 2 FIG. 1 is a flow chart of the method for handling a person trapped in an elevator fault according to the present embodiment. Figure 2 As shown, the process includes the following steps:

[0046] Step S201, determining whether a person-trapping failure occurs in the elevator.

[0047] Specifically, the elevator control system includes an elevator logic control module, a drive module and a car top control module. The elevator logic control module is used to process various elevator signals and belongs to the information processing center. The drive module is used to receive instructions sent by the elevator logic control module and drive various hardware devices to operate during the operation of the elevator. The car top control module is used to detect the operation of the car and feedback the detected signal to the elevator logic control module. During the normal operation of the elevator carrying passengers, if it is detected that there are people in the elevator and it has not reached the target floor, it will stop suddenly. It is determined that the elevator has a trapped person fault, and a trapped person signal 1 can be output to start the elevator trapped person fault processing process.

[0048] Step S202, when it is determined that the elevator is in a non-leveling position, start controlling the elevator to level the floor.

[0049] Specifically, after determining that an elevator has trapped people, the elevator logic control main board first determines the floor the elevator is on. If the elevator is in the leveling door area at this time, the elevator car door is controlled to open directly to release the people. If the elevator is in a non-leveling door area position, the elevator is started to control the elevator to the nearest leveling floor, so that the car stops at the nearest leveling door area position to open the door and release the people.

[0050] Step S203, when the start-up control of the elevator to the nearest leveling is invalid, according to the self-rescue signal, after determining that the elevator meets the safety conditions, control the opening of the brake and start the electronic star seal to make the elevator slide to the leveling position.

[0051] Specifically, after a trapped passenger fault occurs in the elevator, when starting to control the elevator to level at the nearest floor is ineffective, that is, when the elevator cannot be controlled to level at the nearest floor, the automatic leveling system of the elevator may malfunction. The reasons for the malfunction include but are not limited to the failure of the electrical control system, sensor failure, or mechanical component jamming, etc. At this time, a signal indicating that the elevator control system is ineffective in leveling at the nearest floor is sent to the elevator logic control module, and then the automatic rescue mode is entered. The elevator logic control module sends a self-rescue signal trigger prompt to the passengers. For example, through the voice in the car, the passengers are prompted that "the current elevator is in a trapped passenger fault state, and a distress signal can be initiated by long pressing the self-rescue button". At this time, the elevator logic control module controls the self-rescue button in the car to be in an operable state, allowing the passengers to initiate a distress signal. After receiving the self-rescue signal, the elevator first determines whether the elevator is in a safe condition, detects the current position and state of the elevator, such as whether the position of the elevator is clear, whether the doors of the elevator are in a safely closed state, etc. When it is determined that the current situation of the elevator meets the safety conditions for implementing the rescue, the elevator logic control module sends a signal to open the elevator brake to the brake. When the brake receives the signal to open the elevator brake, it performs the operation of opening the elevator brake, and the traction machine rotates freely, driving the elevator car and the counterweight to move up and down, and the elevator coasts. At the same time, electronic star connection is started. In this embodiment, electronic star connection is adopted. Electronic star connection means using power electronic devices (such as IGBTs) to short-circuit the three-phase windings of the motor in a star shape. Its main function is to ensure the safety of passengers by restricting the coasting speed of the elevator. Using the existing drive module in the system, when a trapped passenger fault occurs in the elevator, the opening and closing of the inverter bridge in the drive module are controlled through electronic circuits to achieve star connection, without the need to use an additional star connection contactor, simplifying the automatic processing equipment for trapped passenger faults in the elevator. According to the mass of the car and the counterweight, electronic star connection coasting is carried out. If the mass of the car is greater than the mass of the counterweight, after the brake is opened, the car will coast downwards. After starting the electronic star connection, the coasting speed of the car is controlled to make the car coast safely to the nearest floor. If the mass of the car is less than the mass of the counterweight, after the brake is opened, the car will coast upwards. After starting the electronic star connection, the coasting speed of the car is controlled to make the car coast safely to the nearest floor. After opening the brake and starting the electronic star connection to make the elevator car coast, the position of the elevator car is detected in real time. When it is detected that the elevator car reaches the floor position, the elevator brake is lowered, and the electronic star connection is stopped, so that the elevator car stops at the floor. At this time, the elevator logic control module sends a command to open the elevator doors to the drive module, and the drive module executes the door opening command to open the elevator doors, and the passengers are released from the elevator car, achieving the effect of rescuing passengers when a trapped passenger fault occurs in the elevator. By opening the brake and starting the electronic star connection to coast the elevator car to the nearest floor, during this process, there is no need to cut off the power supply of the elevator control system. The elevator control system is in a powered-on state throughout the process, and the elevator control system can continue to work, avoiding panic caused to passengers by power-off, improving the user experience, and also enhancing the safety.

[0052] Through the above steps S201 to S203, it is determined that the elevator has a trapped passenger fault; when it is determined that the elevator is not at the leveling position, enter the automatic leveling mode, start to control the elevator to level near the current floor; when the control to level the elevator near the current floor is ineffective, enter the automatic rescue mode, and according to the self-rescue signal, when it is determined that the elevator meets the safety conditions, control to open the brake and start the electronic star sealing, so that the elevator coasts to the leveling position. Compared with the prior art where the trapped passengers in the elevator are rescued manually when the elevator has a trapped passenger fault, in this application, when it is detected that the elevator has a trapped passenger fault, the elevator is first tried to level automatically. When the automatic leveling of the elevator is ineffective and on the basis of determining that the elevator meets the safety conditions, automatic rescue is carried out, the brake is opened and the electronic star sealing is started, so that the elevator coasts to the leveling position. During this process, the trapped passengers are rescued through the automatic processing of signals by the elevator control system, and there is no need for power-off processing throughout the process, which improves the processing speed of the elevator trapped passenger fault, also enhances the user experience, and improves the safety of the elevator.

[0053] In some of the embodiments, determining that the elevator has a trapped passenger fault includes: when it is determined that the elevator is in the manned state, when it is detected that the elevator has not reached the target floor, no light curtain occlusion signal is obtained, and the elevator is detected to be in the stopped state, it is determined that the elevator has a trapped passenger fault.

[0054] Specifically, the elevator light curtain is used to identify whether someone enters or exits the elevator. The occlusion of the light curtain indicates that someone enters or exits the elevator. The target floor is the floor registered by the passengers in the elevator car. During the process of the elevator starting and running with passengers to the target floor, when it is detected that the light curtain is not occluded, the elevator has not reached the target floor yet, but the elevator stops, at this time, it can be determined that the elevator has a trapped passenger fault. This embodiment does not need to rely on external components, and can determine whether there is a trapped passenger fault only through the state of the elevator itself.

[0055] In one of the embodiments, determining that the elevator is in the manned state includes: when the elevator is at the leveling position, obtaining the elevator door state, the light curtain occlusion signal, and the in-car registration signal; when it is detected that the elevator door opens and then closes in place, and the light curtain occlusion signal and the in-car registration signal are obtained, it is determined that the elevator is in the manned state.

[0056] Specifically, first determine whether there are passengers in the car. If there are passengers, then determine whether a trapped passenger fault has occurred. For the detection of whether there are passengers in the car, compared with the prior art of detecting whether there are passengers in the elevator car through a camera and a human body induction sensor, in this embodiment, whenever the elevator is in the leveling position, first obtain the elevator door state, the light curtain occlusion signal, and the in-car registration signal, that is, whether the elevator door has the action of opening and then closing in place, whether a light curtain occlusion signal is generated, and whether an in-car registration signal is generated. When it is detected that the elevator door opens and then closes in place, a light curtain occlusion signal is generated, and combined with the detection of the in-car registration signal, it is determined that there are passengers in the car of this elevator, and the current elevator state is the manned state. Among them, the subsequent elevator trapped passenger fault judgment process is started by outputting a signal that there are people in the elevator. If it is detected that there are no people in the elevator, the elevator trapped passenger fault handling process is not triggered. This embodiment does not need to rely on external components, and only determines whether the elevator is manned through the state of the elevator itself, simplifies the elevator detection system, and reduces the detection cost.

[0057] In some of these embodiments, when it is determined that the elevator is in a non-leveling position, start controlling the elevator to level to the nearest floor, including:

[0058] When it is determined that the elevator is in a non-leveling position, according to the preset number of fault resets and the reset time interval, repeatedly perform fault clearing and resetting, and start controlling the elevator to run to the nearest leveling position after each fault clearing and resetting, until the elevator is successfully controlled to run to the nearest leveling position;

[0059] When reaching the last time in the preset number of fault resets, first mask the target logic fault, then perform fault clearing and resetting, and then start controlling the elevator to run to the nearest leveling position.

[0060] Specifically, when it is detected that the elevator has a trapped passenger fault, for example, receiving the above-mentioned trapped passenger signal 1, and it is detected that the elevator is in a non-leveling position, trigger the elevator automatic leveling processing flow, perform fault reset processing on the elevator, and restore the elevator control system to a known and stable state. The error state, temporary data, or other problem-causing states in the elevator control system program are cleared through automatic fault reset, so that the system is restored to the normal and stable detection state. During this reset process, the elevator control system is not powered off, and the recovery program is automatically executed by the elevator control system. Among them, in this embodiment, the fault reset processing includes two types: clearing the fault for resetting and performing fault clearing and resetting after masking the target logic fault.

[0061] First, set in advance the number of attempts for elevator fault reset, for example, 3 times, and set in advance the time interval between each reset attempt, for example, 30 seconds. Prioritize fault clearance and reset, and repeatedly perform fault clearance and reset operations according to the preset number of trapped passenger fault resets and reset time intervals. By clearing the faults, the elevator is restored to the normal operating state, enabling the elevator car to run and dock at the nearest landing, and opening the elevator door to release the passengers. When all fault clearance and reset attempts fail before the last reset, that is, before reaching the last fault clearance and reset, and the elevator car fails to run successfully, then at the last reset, select some Class B logic faults as target logic faults, specifically including brake feedback switch faults, upper and lower forced deceleration faults, main machine thermal faults, weighing CAN communication anomalies, etc., which have no impact on the safety of the elevator's automatic leveling. First, mask the selected target logic faults, and then clear and reset all faults, so as to achieve smooth leveling and open the elevator door to release the passengers. It should be noted that a logic fault refers to a fault in the logic main board of the logic control module.

[0062] Figure 3 is the fault automatic reset flowchart of the elevator trapped passenger fault handling method in this embodiment, as Figure 3 shown, the automatic reset process of the trapped passenger fault includes:

[0063] Step S301, determine whether there are trapped passengers in the car. If so, execute Step S302; otherwise, execute Step S308;

[0064] Step S302, clear the trapped passenger fault and perform automatic reset;

[0065] Step S303, determine whether the start of leveling is successful. If so, execute Step S308; otherwise, execute Step S304;

[0066] Step S304, determine whether the number of trapped passenger fault clearance and reset times has reached the preset number. If so, execute Step S305; otherwise, execute Step S302;

[0067] Step S305, mask the target logic faults;

[0068] Step S306, clear the trapped passenger fault;

[0069] Step S307, determine whether the start of leveling is successful. If so, execute Step S308; otherwise, execute Step S309;

[0070] Step S308, end;

[0071] Step S309, output that the automatic reset process fails, and execute Step S308.

[0072] In another embodiment, when starting to control the elevator to approach the landing is ineffective, according to the self-rescue signal, and when it is determined that the elevator meets the safety conditions, control to open the brake and start the electronic star sealing, so that the elevator coasts to the landing position, including:

[0073] When starting to control the elevator to approach the landing is ineffective, first shield the target drive fault, then clear the drive fault, and control the elevator to output a guiding self-rescue message;

[0074] When receiving the self-rescue signal, determine whether the elevator meets the safety conditions. When it is determined that the elevator meets the safety conditions, control to open the brake and start the electronic star sealing, so that the elevator coasts to the landing position.

[0075] Specifically, when starting to control the elevator to approach the landing is ineffective, that is, the automatic landing fails, then output a trapped person signal 2. After receiving the trapped person signal 2, enter the automatic rescue mode. The elevator logic control system first shields the target drive fault, where the target drive fault is part of the Class B drive faults such as speed following faults that do not affect the safety during star sealing and coasting, to ensure the normal progress of the star sealing and coasting process. Then clear all drive faults to prevent the elevator from continuing to attempt to move to the target floor, thus avoiding possible unsafe conditions. Then control the elevator to output a guiding self-rescue signal for passengers, for example, through a voice in the car to prompt passengers that "the current elevator is in a trapped person fault state, and you can initiate a help signal by pressing and holding the self-rescue button". After receiving the self-rescue signal sent by the passenger, first determine whether the elevator is in a safe condition, detect the current position and state of the elevator, such as whether the position of the elevator is clear, whether the doors of the elevator are in a safely closed state, etc. When it is determined that the current situation of the elevator meets the safety conditions for implementing the rescue, control to open the brake of the elevator, and start the electronic star sealing, and control the car of the elevator to coast to the landing position. It should be noted that the drive fault refers to the fault of the drive main board in the drive module.

[0076] In one of the embodiments, the self-rescue signal can be a continuous signal sent by pressing and holding the self-rescue button.

[0077] Specifically, in this embodiment, a self-rescue button is provided in the car. After the automatic reset of the elevator trapped person fault fails, the elevator logic control module sends a self-rescue prompt to the passengers, prompting the passengers to press and hold the self-rescue button to start the self-rescue program. Among them, the passengers need to press and hold the self-rescue button so that the elevator logic control module receives a continuous self-rescue signal before the self-rescue program can be triggered, improving the safety of the elevator.

[0078] In some of the embodiments, determining whether the elevator meets the safety conditions includes:

[0079] When the safety circuit signal of the elevator is conducting, the position of the elevator has not had a loss fault, and the light curtain of the elevator is not blocked, determine that the elevator meets the safety conditions; otherwise, it does not meet the safety conditions.

[0080] Specifically, in the case of automatic reset failure of the trapped person fault, it is necessary to start the electronic star sealing to achieve automatic rescue of passengers. Before starting the electronic star sealing, in order to further ensure safety, it is necessary to detect the current state of the elevator to determine whether the elevator meets the safety conditions. First, the elevator logic control module receives the self-rescue signal initiated by the passenger and starts the automatic rescue program. Then, it detects whether the safety loop signal of the elevator is conducting. The conduction of the safety loop signal indicates that there is no safety fault in the elevator; the car position is detected in real time. If the position is lost, it is impossible to accurately judge the position of the car, and there is a risk in the rescue. Specifically, it can be judged by whether the deviation between the detected car position and the position predicted by the absolute position system is within the preset threshold range. If it is greater than the preset threshold range, there is a position loss fault; it is also necessary to judge whether the light curtain of the elevator is blocked. If the light curtain of the elevator is blocked, it indicates that there is a situation where people enter or exit the elevator, and the elevator movement must be stopped. When the safety loop signal is connected, the position detection system is normal, and the light curtain is not blocked, it is determined that the elevator meets the safety conditions, and then the brake can be opened to start the electronic star sealing to make the car coast. It should be noted that the above safety conditions are continuously detected, including during the process of opening the brake and starting the electronic star sealing. As long as one of them is not met, it is determined that the elevator does not meet the safety conditions, and the elevator brake is lowered to prohibit the electronic star sealing from coasting.

[0081] In some of these embodiments, when it is determined that the elevator meets the safety conditions, after controlling to open the brake of the elevator and start the electronic star sealing to make the elevator coast to the leveling position, it further includes:

[0082] Real-time monitoring of the running speed, running time, and running position of the elevator;

[0083] Judging whether the running speed of the elevator is greater than the preset speed threshold. If so, controlling the elevator brake to stop running;

[0084] Judging whether the elevator reaches the target leveling position within the preset time period. If not, controlling the elevator brake to stop running;

[0085] Judging whether the elevator is in the end station blind layer position. If so, controlling the elevator brake to stop running.

[0086] It should be noted that the running here refers to the coasting movement of the elevator.

[0087] Specifically, after starting the electronic star sealing and coasting, monitor the coasting process. When the following situations occur, it is necessary to lower the elevator brake to stop coasting and stop running.

[0088] Case 1: Detect the car slipping speed in real time, preset a maximum safe slipping speed in advance as the slipping speed threshold, and determine whether the real-time slipping speed of the car is greater than this speed threshold. If it exceeds the threshold speed, it is determined that there may be an accidental risk of the current car slipping. At this time, control the elevator brake to drop, stop the slipping, and do not allow the electronic star sealing slipping to be started again.

[0089] Case 2: Detect the current position of the elevator car and the position of the target landing to be reached, calculate the time required to reach the target landing by slipping through electronic star sealing. After starting the electronic star sealing to slip the car, count the slipping time of the car. If the slipping time exceeds the preset required time and the car has not reached the landing position, it is determined that there may be a slipping failure or accident. At this time, control the elevator brake to drop, stop the slipping, and do not allow the electronic star sealing slipping to be started again.

[0090] Case 3: In general, there is a terminal blind landing in the elevator floors. The terminal blind landing is a landing position where the elevator is not allowed to stop. There may be no landing door set on this floor and it is not accessible. When the car of the elevator slips to the terminal landing position, judge the landing position to see if it is a terminal blind landing. If this floor is a terminal blind landing, control the elevator brake to drop, stop the slipping, and do not allow the electronic star sealing slipping to be started again.

[0091] Until the car slips to the landing position in a safe state, drop the brake, the process ends, and the elevator door is opened to let people out.

[0092] In this embodiment, a method for handling elevator entrapment faults is also provided. Figure 4 It is a flowchart of another method for handling elevator entrapment faults in this embodiment, as Figure 4 shown, and this process includes the following steps:

[0093] Step S401, when it is detected that the elevator door is closed in place after opening and the light curtain occlusion signal and the elevator car registration signal are obtained, it is determined that the elevator is in the manned state;

[0094] Step S402, when it is determined that the elevator is in the manned state, when it is detected that the elevator has not reached the target floor, the light curtain occlusion signal has not been obtained, and the elevator is in the stopped state, it is determined that the elevator has an entrapment fault;

[0095] Step S403, judge whether the elevator is at the landing position. If so, execute step S423; otherwise, execute step S404;

[0096] Step S404, according to the preset fault reset times and reset time intervals, repeatedly perform fault clearing and reset, and start to control the elevator to run to the nearest landing position after each fault clearing and reset;

[0097] Step S405: Determine whether the elevator has run to the nearest leveling position. If so, execute Step S423; otherwise, execute Step S406;

[0098] Step S406: Determine whether it is the last time among the preset fault reset times. If so, execute Step S407; otherwise, execute Step S404;

[0099] Step S407: First, mask the target logic fault, then perform fault clearing and reset, and then start controlling the elevator to run to the nearest leveling position;

[0100] Step S408: Determine whether the elevator has run to the nearest leveling position. If so, execute Step S423; otherwise, execute Step S409;

[0101] Step S409: First, mask the target drive fault, then clear the drive fault, and control the elevator to output guiding self - rescue information;

[0102] Step S410: Determine whether a self - rescue button signal has been received. If so, execute Step S411; otherwise, execute Step S422;

[0103] Step S411: Determine whether the light curtain of the elevator is blocked. If so, execute Step S422; otherwise, execute Step S412;

[0104] Step S412: Determine whether the safety circuit signal is connected. If so, execute Step S413; otherwise, execute Step S422;

[0105] Step S413: Determine whether a position loss fault of the elevator has occurred. If so, execute Step S422; otherwise, execute Step S414;

[0106] Step S414: Open the brake and start the electronic star - sealing coasting;

[0107] Step S415: Determine whether the car has not reached the target floor within the preset duration. If so, execute Step S418; otherwise, execute Step S416;

[0108] Step S416: Determine whether the speed of the star - sealing coasting exceeds the preset speed threshold. If so, execute Step S418; otherwise, execute Step S417;

[0109] Step S417: Determine whether the elevator is at the blind floor position of the terminal station. If so, execute Step S418; otherwise, execute Step S419;

[0110] Step S418: Lower the brake, stop the star - sealing coasting, and do not allow self - rescue; and execute Step S421;

[0111] Step S419: Determine whether it is the target flat floor position. If so, execute Step S420; otherwise, execute Step S410.

[0112] Step S420: Release the brake, stop the electronic star connection and coasting, open the elevator door, and let passengers out.

[0113] Step S421: End.

[0114] Step S422: Release the brake, stop the electronic star connection and coasting, and return to execute Step S410.

[0115] Step S423: Open the elevator door, let passengers out, and execute Step S421.

[0116] Through the above Steps S401 to S423, when receiving the elevator entrapment fault signal, first determine whether there are passengers in the car. In the case of having passengers, enter the elevator automatic leveling mode, first perform the automatic reset process for the entrapment fault, start the automatic reset entrapment fault program. If the entrapment fault is still not cleared, enter the automatic rescue mode, prompt the user to operate the self-rescue button. After receiving the self-rescue signal of the self-rescue button, where the self-rescue signal is the signal of long pressing the self-rescue button, which is a continuous and uninterrupted signal, open the elevator brake to perform electronic star connection and coasting for the elevator, so that after the elevator coasts to the flat floor position, open the elevator door. Among them, in this application, first realize the first-step elevator entrapment fault rescue through automatic fault reset, including automatically clearing the fault reset and clearing the fault reset again after shielding some logic faults. In the case of automatic reset failure, start the electronic star connection system to perform electronic star connection and coasting rescue. Among them, compared with the motor star connection used in the prior art, the electronic star connection does not require an external star connection contactor, does not need to cut off the power supply of the elevator during the rescue, keeps the power supply on throughout the process, and the control system of the elevator can continue to work, improving the safety of the elevator. This application performs rescue through software processing, receives and processes signals through the logic control board for rescue, improving the rescue efficiency.

[0117] Figure 5 It is a schematic structural diagram of the elevator entrapment fault processing system in this embodiment, applying the elevator entrapment fault processing method described in any one of the above embodiments, as Figure 5 shown. The elevator entrapment fault processing system 50 includes: an elevator logic control board 51, a drive control board 52, a car top control board 53, a self-rescue button 54, and an electronic star connection system 55, where:

[0118] The self-rescue button 54 is arranged in the elevator car 56; the self-rescue button 54 is connected to the car top control board 53; the car top control board 53 is connected to the elevator logic control board 51; the drive control board 52 is connected to the elevator logic control board 51; the elevator logic control board 51 controls the electronic star connection system 55; the electronic star connection system 55 is used to limit the running speed of the elevator during rescue.

[0119] Specifically, the elevator entrapment fault handling system 50 includes an elevator logic control board 51, a drive control board 52, and a car top control board 53. The elevator logic control board 51 is equipped with data interaction interfaces such as RS422 interfaces and CAN interfaces, and also has input and output interfaces for logic signals, on-board buttons, and a data tube display interface. The drive control board 52 is communicatively connected to the elevator logic control board 51 via RS422, and the car top control board 53 is communicatively connected to the elevator logic control board 51 via CAN. The car top control board 53 is equipped with data interaction interfaces such as RSL interfaces and CAN interfaces, and the self-rescue button 54 is mounted on the RSL bus of the car top control board 53.

[0120] The elevator logic control board 51 is used to obtain the previous and current states of the elevator to determine whether there are trapped passengers. When it detects trapped passengers, it attempts to automatically reset the fault and level the elevator car to the nearest floor. When the attempt to automatically reset the fault fails, it temporarily masks some logic faults and tries again to level to the nearest floor. If the elevator still cannot be started and leveled, the elevator automatically enters the automatic rescue mode. In this mode, the self-rescue button 54 is activated. After masking some drive faults, the drive faults are cleared. When the in-car self-rescue button is pressed, the elevator logic control board 51 automatically determines whether the current state allows the brake to be opened for electronic star sealing and coasting. On the premise of ensuring safety, the brake is opened to perform electronic star sealing and coasting to the leveling position, and the door is opened to release the passengers at the same time.

[0121] In this embodiment, an electronic device is also provided, including a memory and a processor. A computer program is stored in the memory, and the processor is configured to run the computer program to execute the steps in any one of the above method embodiments.

[0122] Optionally, the above electronic device may further include a transmission device and input / output devices. Among them, the transmission device is connected to the above processor, and the input / output device is connected to the above processor.

[0123] Optionally, in this embodiment, the above processor may be configured to execute the following steps through a computer program:

[0124] S1, determine whether the elevator has an entrapment fault;

[0125] S2, when it is determined that the elevator is not at the leveling position, start controlling the elevator to level to the nearest floor;

[0126] S3, when starting to control the elevator to level to the nearest floor is ineffective, according to the self-rescue signal, when it is determined that the elevator meets the safety conditions, control to open the brake and start electronic star sealing to make the elevator coast to the leveling position.

[0127] It should be noted that the specific examples in this embodiment can refer to the examples described in the above embodiments and optional implementation manners, and will not be elaborated herein.

[0128] In addition, in combination with the elevator entrapment fault handling method provided in the above embodiments, a storage medium can also be provided in this embodiment to implement it. A computer program is stored on the storage medium; when the computer program is executed by a processor, any one of the elevator entrapment fault handling methods in the above embodiments is implemented.

[0129] It should be understood that the specific embodiments described here are only used to explain this application, rather than to limit it. According to the embodiments provided in this application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of this application.

[0130] Obviously, the accompanying drawings are only some examples or embodiments of this application. For those of ordinary skill in the art, this application can also be applied to other similar situations based on these drawings without creative work. In addition, it can be understood that although the work done during the development process here may be complex and time-consuming, for those of ordinary skill in the art, certain design, manufacturing, or production changes based on the technical content disclosed in this application are only conventional technical means and should not be regarded as insufficient disclosure of this application.

[0131] The term "embodiment" in this application means that the specific features, structures, or characteristics described in combination with the embodiment can be included in at least one embodiment of this application. The phrase appears in various positions in the specification and does not necessarily mean the same embodiment, nor does it mean being independent or alternative to other embodiments and mutually exclusive. Those of ordinary skill in the art can clearly or implicitly understand that the embodiments described in this application can be combined with other embodiments without conflict.

[0132] Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be completed by instructing relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above methods. Among them, any reference to a memory, database, or other medium used in the embodiments provided in the present application can include at least one of non-volatile and volatile memories. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM), etc. The databases involved in the embodiments provided in the present application can include at least one of relational databases and non-relational databases. Non-relational databases can include distributed databases based on blockchain, etc., without limitation. The processors involved in the embodiments provided in the present application can be general-purpose processors, central processors, graphics processors, digital signal processors, programmable logic devices, data processing logics based on quantum computing, etc., without limitation.

[0133] The above embodiments only represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of patent protection. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A method for handling elevator entrapment failure, characterized in that: include: Determining that a person-trapping failure occurs in the elevator; When it is determined that the elevator is in a non-leveling position, starting to control the elevator to a leveling position; When the start-up control of the elevator to the nearest leveling position is invalid, according to the self-rescue signal, after determining that the elevator meets the safety conditions, the brake is controlled to be opened and the electronic star seal is started to make the elevator slide to the leveling position.

2. The elevator entrapment fault handling method according to claim 1 is characterized in that: The determining that a person-trapping fault occurs in the elevator comprises: When it is determined that the elevator is in a state of carrying people, when it is detected that the elevator has not reached the target floor, no light curtain blocking signal is obtained, and when it is detected that the elevator is in a stopped state, it is determined that a person-trapping fault occurs in the elevator.

3. The elevator entrapment fault handling method according to claim 2 is characterized in that: The step of determining that the elevator is in a passenger-carrying state comprises: When the elevator is at the leveling position, obtaining the elevator door status, the light curtain blocking signal and the elevator registration signal; When it is detected that the elevator door is fully closed after opening, and the light curtain blocking signal and the elevator registration signal are obtained, it is determined that the elevator is in a passenger state.

4. The elevator entrapment fault handling method according to claim 1, characterized in that: When it is determined that the elevator is in a non-leveling position, starting to control the elevator to level the floor comprises: When it is determined that the elevator is in a non-leveling position, the fault clearing and resetting are repeatedly performed according to the preset fault reset times and reset time interval, and after each fault clearing and resetting, the elevator is started to be controlled to run to the nearest leveling position until the elevator is successfully controlled to run to the nearest leveling position; When the last of the preset fault reset times is reached, the target logic fault is first shielded, and then the fault is cleared and reset, and then the elevator is started and controlled to run to the nearest leveling position.

5. The elevator entrapment fault handling method according to claim 1, characterized in that: When the start control of the elevator to the nearest leveling position is invalid, according to the self-rescue signal, after determining that the elevator meets the safety conditions, control the opening of the brake and start the electronic star seal to make the elevator slide to the leveling position, including: When the start-up control of the elevator is invalid for the nearest leveling, the target drive fault is first shielded, the drive fault is then cleared, and the elevator is controlled to output a guiding self-rescue message; When the self-rescue signal is received, it is determined whether the elevator meets the safety conditions. If it is determined that the elevator meets the safety conditions, the brake is controlled to be opened and the electronic star seal is started to allow the elevator to slide to the leveling position.

6. The elevator entrapment fault handling method according to claim 5, characterized in that: The step of judging whether the elevator meets the safety conditions comprises: When the safety circuit signal of the elevator is turned on, the position of the elevator is not lost, and the light curtain of the elevator is not blocked, it is determined that the elevator meets the safety conditions; otherwise, it does not meet the safety conditions.

7. The elevator entrapment fault handling method according to claim 1, characterized in that: After the elevator brake is controlled to be opened and the electronic star-lock is started to make the elevator slide to the leveling position when it is determined that the elevator meets the safety conditions, the method further includes: Real-time monitoring of the running speed, running time and running position of the elevator; Determine whether the running speed of the elevator is greater than a preset speed threshold, and if so, control the elevator brake to stop running; Determine whether the elevator reaches the target leveling position within a preset time period, and if not, control the elevator brake to stop running; Determine whether the elevator is at a terminal blind floor position, and if so, control the elevator brake to stop running.

8. An elevator entrapment fault processing system, using the elevator entrapment fault processing method described in any one of claims 1 to 7, characterized in that: include: Elevator logic control board, drive control board, car top control board, self-rescue button and electronic star sealing system, including: The self-rescue button is arranged in the elevator car; the self-rescue button is connected to the car top control panel; the car top control panel is connected to the elevator logic control panel; the drive control panel is connected to the elevator logic control panel; the elevator logic control panel controls the electronic star sealing system; the electronic star sealing system is used to limit the running speed of the elevator during rescue.

9. An electronic device comprising a memory and a processor, characterized in that: A computer program is stored in the memory, and the processor is configured to run the computer program to execute the elevator entrapment fault processing method according to any one of claims 1 to 7.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the elevator entrapment fault handling method described in any one of claims 1 to 7 are implemented.

Images