Elevator door closing control method and device, electronic equipment and storage medium

Abstract

The application discloses an elevator door closing control method and device, electronic equipment and a storage medium, which are applied to control an elevator door closing system comprising a power supply, a capacitor, a motor and a door control panel. The motor converts kinetic energy of an elevator door into electric energy to supply power to the door control panel after the power supply loses power. When the power supply loses power during the process of closing the elevator door, a first speed and a first position of the elevator door are acquired, and current electric quantity of the capacitor is acquired. The power-off moment of the elevator door closing system is calculated according to the first speed and the current electric quantity. The elevator door is controlled to start deceleration from the first position and stop closing when the power-off moment is reached. The power-off moment of the elevator door closing system is calculated through the first speed of the elevator door and the current capacity of the capacitor, so that the speed of the elevator door is 0 at the power-off moment, the elevator door speed is prevented from being too fast to collide with passengers and cause elevator door opening and closing loss, the safety performance of the elevator door closing is ensured, a relay is not needed to perform star sealing operation, and the cost and failure rate are reduced.

Description

Technical Field

[0001] This invention relates to the field of elevator control technology, and in particular to an elevator door closing control method, device, electronic equipment, and storage medium. Background Technology

[0002] When the elevator loses power or the elevator door control circuit malfunctions, the elevator door will close rapidly due to inertia or the action of a counterweight or spring. Excessive elevator door speed can cause injury to passengers and damage to the door lock switch.

[0003] To prevent the door from closing too quickly after a power outage or malfunction, the traditional technology involves adding a relay to the three-phase input of the motor that drives the door to close. The relay is open when the power supply is normal and automatically closes when the power is lost. By shorting any two phases of the motor input through the relay, the magnetic reluctance generated by the motor's rotation reduces the door speed, thus achieving a star-shaped deceleration of the elevator door.

[0004] Then, the star-sealing speed reduction requires the addition of relays, which increases both cost and energy consumption, and the frequent operation of the relays also leads to an increased failure rate. Summary of the Invention

[0005] This invention provides an elevator door closing control method, device, electronic equipment, and storage medium to solve the problem that elevator door closing systems use a star-sealing operation to control elevator door closing after power failure, resulting in high costs, increased energy consumption, and higher failure rates.

[0006] In a first aspect, the present invention provides an elevator door closing control method, applied to control an elevator door closing system including a power supply, a capacitor, a motor, and a door control panel, wherein the motor converts the kinetic energy of the elevator door into electrical energy to supply power to the door control panel after the power supply fails, comprising:

[0007] When a power failure is detected during the elevator door closing process, the first speed and first position of the elevator door are obtained.

[0008] Get the current charge level of the capacitor;

[0009] Calculate the power failure time of the elevator door closing system based on the first speed and the current power level;

[0010] The elevator door is controlled to decelerate from the first position and stop closing when the power failure occurs.

[0011] Optionally, the power failure time of the elevator door closing system is calculated based on the first speed and the current power level, including:

[0012] Obtain the preset acceleration of the elevator door and the power consumption parameters of the elevator door closing system;

[0013] An objective function is constructed based on the first speed, acceleration, current power level, and power consumption parameters. The objective function uses duration as the independent variable and the available power of the elevator door closing system as the dependent variable.

[0014] The duration when the available power in the objective function equals a preset power threshold is determined as the target duration, and the power-off time of the elevator door closing system is determined based on the target duration.

[0015] Optionally, the power consumption parameters include the power loss of the elevator door and the system power consumption, and the objective function is as follows:

[0016]

[0017] Where E(t) is the available power of the elevator door closing system at time t, m is the mass of the elevator door, V is the first velocity of the elevator door, a is the preset acceleration of the elevator door, η is the power generation efficiency, and W F For power loss, E P W represents the current charge of the capacitor. A t represents the system power consumption and t represents the duration.

[0018] Optionally, the door control panel further includes a braking resistor, and also includes:

[0019] During the process of the elevator door decelerating, the voltage across the capacitor is measured;

[0020] When the voltage is greater than the withstand voltage of the capacitor, the braking resistor is controlled to engage to perform voltage division.

[0021] Optionally, after controlling the elevator door to decelerate from the first position and stop closing when the power failure occurs, the method further includes:

[0022] After the elevator door stops closing at the moment of power failure, the second position of the elevator door is obtained; if the elevator door is not fully closed based on the second position, the motor is controlled to perform a star-sealing operation to close the door.

[0023] Optionally, when it is determined through the second position that the elevator door is not fully closed, control any two phases of the motor to perform a star-sealing operation to close the door, including:

[0024] When the elevator door is determined to be not fully closed by the second position, if the elevator door is detected to be closing, the second speed of the elevator door is obtained;

[0025] When the second speed is greater than the preset speed threshold, control any two phase lines of the motor to perform a star-sealing operation to close the door.

[0026] Optionally, when the elevator door is determined to be not fully closed by the second position, controlling any two phases of the motor to perform a star-sealing operation to close the door further includes:

[0027] When controlling any two phases of the motor to perform a star-sealing operation to close the door, if an operation to move the elevator door in the opening direction is detected, the star-sealing operation is released.

[0028] Secondly, the present invention provides an elevator door closing control device, applied to control an elevator door closing system including a power supply, a capacitor, a motor, and a door control panel. The motor converts the kinetic energy of the elevator door into electrical energy to power the door control panel after the power supply fails. The device includes:

[0029] The elevator door speed and position acquisition module is used to acquire the first speed and first position of the elevator door when a power failure is detected during the closing process of the elevator door.

[0030] The capacitor charge acquisition module is used to acquire the current charge level of the capacitor.

[0031] A power failure time calculation module is used to calculate the power failure time of the elevator door closing system based on the first speed and the current power level.

[0032] An elevator door control module is used to control the elevator door to decelerate from the first position and stop closing when the power failure occurs.

[0033] Thirdly, the present invention provides an electronic device, the electronic device comprising:

[0034] At least one processor; and

[0035] A memory communicatively connected to the at least one processor; wherein,

[0036] The memory stores a computer program that can be executed by the at least one processor, the computer program being executed by the at least one processor to enable the at least one processor to perform the elevator door closing control method according to any one of the first aspects of the present invention.

[0037] Fourthly, the present invention provides a computer-readable storage medium storing computer instructions that, when executed by a processor, implement the elevator door closing control method according to any one of the first aspects of the present invention.

[0038] In the elevator door closing system of this invention, the motor can convert the kinetic energy of the elevator door into electrical energy to power the door control board after the power supply fails. When the power failure is detected, the first speed and first position of the elevator door are obtained, as well as the current charge of the capacitor. The power failure time of the elevator door closing system is calculated based on the first speed and the current charge. The elevator door is controlled to decelerate from the first position and stop closing when the power failure time is reached. This realizes the calculation of the kinetic energy of the elevator door into electrical energy by converting it into electrical energy through the first speed of the elevator door, and the calculation of the power failure time of the elevator door closing system by combining the current charge of the capacitor. This controls the speed of the elevator door to be 0 at the power failure time, preventing the elevator door from closing too fast and colliding with passengers and causing damage to the elevator door opening and closing, thus ensuring the safety performance of the elevator door closing. Furthermore, it eliminates the need for relay sealing operation, reducing costs and the failure rate caused by frequent relay operation.

[0039] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0040] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0041] Figure 1 This is a flowchart of an elevator door closing control method provided in Embodiment 1 of the present invention;

[0042] Figure 2 This is a schematic diagram of an elevator door closing system according to an embodiment of the present invention;

[0043] Figure 3 This is a flowchart of an elevator door closing control method provided in Embodiment 2 of the present invention;

[0044] Figure 4 This is a schematic diagram of the structure of an elevator door closing control device provided in Embodiment 3 of the present invention;

[0045] Figure 5 This is a schematic diagram of the structure of the electronic device provided in Embodiment 4 of the present invention. Detailed Implementation

[0046] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0047] Example 1

[0048] Figure 1 This is a flowchart of an elevator door closing control method provided in Embodiment 1 of the present invention. This embodiment is applicable to controlling the elevator door to close when the elevator loses power. The method can be executed by an elevator door closing control device, which can be implemented in hardware and / or software and can be configured in an electronic device. Figure 1 As shown, the elevator door closing control method includes:

[0049] S101. When a power failure is detected during the closing process of the elevator door, the first speed and first position of the elevator door are obtained.

[0050] like Figure 2 As shown, the elevator door closing system of this embodiment includes a power supply 1, a capacitor, a motor M, and a door control board 2. The capacitor may include capacitor C2 in the door control board 2 and capacitor C1 in the power supply 1. The power supply 1, capacitor C1, and capacitor C2 are all connected through bus 3 to supply power to the motor M. In addition, when the motor M decelerates, the electrical energy generated by the motor M can be supplied to the door control board 2 through bus 3. When the power supply 1 loses power, the electrical energy stored in capacitor C1 and capacitor C2 and the electrical energy generated by the motor M can supply power to the door control board 2. After receiving electrical energy, the door control board 2 can control the elevator door to close.

[0051] like Figure 2 As shown, when a power failure is detected and the elevator door is in the closed state, the first speed and first position of the elevator door can be obtained through a speed sensor and a position sensor. For example, the voltage at the input terminal of power supply 1 (connected to AC mains power or emergency power supply) can be detected by a voltage detection circuit (not shown). When the input voltage of power supply 1 is detected to be 0, it is determined that the power failure has occurred. The first speed and first position of the elevator door can be collected by the speed sensor and the position sensor. The first speed can be the speed at which the elevator door moves in the closing direction, and the first position can be the distance from a certain edge of the elevator door to the position of the edge when the elevator door is fully closed.

[0052] S102, Obtain the current charge of the capacitor.

[0053] In one embodiment, the capacitor charges and stores energy when powered by a power source, and the rated capacity of the capacitor can be determined as the current charge of the capacitor.

[0054] In another embodiment, the current charge of the capacitor can also be obtained. For example, the voltage across the capacitor can be detected, and the product of the voltage and the rated capacity of the capacitor can be calculated as the current charge of the capacitor.

[0055] S103. Calculate the power failure time of the elevator door closing system based on the first speed and the current power level.

[0056] In one embodiment, the available power in the elevator door closing system includes the current charge of the capacitor and the power generated when the motor decelerates. At the same time, the operation of the power supply and the door control panel also consume power. The power failure time of the elevator door closing system can be calculated by the available power and the unit power consumption, that is, the time when the available power can support the operation of the elevator door closing system. In this case, the first speed of the elevator door closing and the mass of the elevator door can be input into the kinetic energy formula to calculate the kinetic energy when the elevator door decreases from the current first speed to 0, so as to calculate the power generated by the motor when the elevator door closes.

[0057] In another embodiment, an objective function can be constructed with duration t and available power as independent variables to calculate the duration t when the available power is less than a preset power threshold, and the power outage time can be calculated based on the duration t and the current time.

[0058] S104. Control the elevator door to decelerate from the first position and stop closing when the power is off.

[0059] After determining the power failure time of the elevator door closing system, in order to control the elevator door to close at a speed of 0 when the power failure time arrives, the acceleration required for the elevator door to decrease from the first speed to 0 during the time between the current time and the power failure time can be calculated using kinematics. The elevator door can then be controlled to close using this acceleration. For example, the door control board can output control signals to control the three-phase input of the motor to control the motor speed, thereby controlling the elevator door closing speed to avoid the elevator door closing too quickly.

[0060] In the elevator door closing system of this invention, the motor can convert the kinetic energy of the elevator door into electrical energy to power the door control board after the power supply fails. When the power failure is detected, the first speed and first position of the elevator door are obtained, as well as the current charge of the capacitor. The power failure time of the elevator door closing system is calculated based on the first speed and the current charge. The elevator door is controlled to decelerate from the first position and stop closing when the power failure time is reached. This realizes the calculation of the kinetic energy of the elevator door into electrical energy by converting it into electrical energy through the first speed of the elevator door, and the calculation of the power failure time of the elevator door closing system by combining the current charge of the capacitor. This controls the speed of the elevator door to be 0 at the power failure time, preventing the elevator door from closing too fast and colliding with passengers and causing damage to the elevator door opening and closing, thus ensuring the safety performance of the elevator door closing. Furthermore, it eliminates the need for relay sealing operation, reducing costs and the failure rate caused by frequent relay operation.

[0061] Example 2

[0062] Figure 3 This is a flowchart of an elevator door closing control method provided in Embodiment 2 of the present invention. This embodiment of the present invention is an optimization based on Embodiment 1 described above, such as... Figure 3 As shown, the elevator door closing control method includes:

[0063] S301. When a power failure is detected during the closing process of the elevator door, the first speed and first position of the elevator door are obtained.

[0064] The first speed of the elevator can be the speed at which the elevator door moves in the closing direction when the elevator door is closing, and the first position can be the distance the elevator door moves in the closing direction. When a power failure is detected during the closing process of the elevator door, such as when a sudden power outage or emergency power failure is detected, the first speed and first position of the elevator door can be collected by the speed sensor and the position sensor.

[0065] S302, Obtain the current charge of the capacitor.

[0066] In one embodiment, the capacitor charges and stores energy when powered by a power source, and the rated capacity of the capacitor can be determined as the current charge of the capacitor.

[0067] S303. Obtain the preset acceleration of the elevator door and the power consumption parameters of the elevator door closing system.

[0068] This embodiment can pre-configure the elevator door's acceleration 'a' when the elevator door closes, and set the power loss W. F System power consumption W A The power consumption parameter is denoted as W, where the power loss is W. F The total power consumption (W) can be calculated by considering the losses from the mechanical movement of the elevator doors and the electrical losses from electronic components. A This can include the power consumption of the power supply and the power consumption of the gate control board, that is:

[0069] W A =W POR +W door

[0070] Among them, W POR W represents the power consumption of the power supply. door Regarding the power consumption of the door control board, those skilled in the art can set the power consumption (W) according to different elevators and power supplies. POR Power consumption of the door control board (W) door .

[0071] S304. Construct an objective function based on the first speed, acceleration, current power level, and power consumption parameters. The objective function takes duration as the independent variable and the available power of the elevator door closing system as the dependent variable.

[0072] The kinetic energy of the elevator door is converted into energy generated by the motor. Assuming the efficiency of the kinetic energy to electrical energy conversion is η, the energy E that the kinetic energy of the elevator door is converted into energy applied to the busbar by the motor is η. BUS =E moto ×η, where, according to the kinetic energy formula, the kinetic energy converted by the motor when the elevator door decreases from velocity V to 0 is... m is the mass of the elevator door.

[0073] To establish the relationship between the available power of the elevator door system and the duration t, considering that the elevator door decelerates due to acceleration during the closing process, the kinetic energy formula is transformed as follows:

[0074]

[0075] That is, the kinetic energy of the elevator door at each different time t, and based on this, the following objective function is established:

[0076]

[0077] Where E(t) is the available power of the elevator door closing system at time t, m is the mass of the elevator door, V is the first velocity of the elevator door, a is the preset acceleration of the elevator door, η is the power generation efficiency of the motor, and W F For power loss, E P W represents the current charge of the capacitor. A t represents the system power consumption and t represents the duration.

[0078] The objective function represents the amount of electricity generated by the motor as time t progresses. The power consumed is W F t+W A t, the initial charge of the capacitor is E P The available power E(t) of the elevator door closing system decreases continuously as the time t increases.

[0079] In another embodiment, an objective function for the duration of electricity consumption can also be constructed. Specifically, the objective function for the duration of electricity consumption can calculate the power loss W. F and system power consumption W A The sum of the values ​​is used as the total power consumption per unit. The amount of electricity that the motor can generate is calculated based on the mass of the elevator door and the first speed. The sum of the amount of electricity generated by the motor and the current amount of electricity in the capacitor is calculated as the total available power. The ratio of the total available energy to the total power consumption per unit is calculated to obtain the duration for which the total available power supports the power consumption of the elevator door closing system.

[0080] S305. The duration when the available power in the objective function equals the preset power threshold is determined as the target duration, and the power-off time of the elevator door closing system is determined based on the target duration.

[0081] In this embodiment, the energy consumed by the elevator door closing system to maintain normal operation can be preset to W based on the circuit properties of the elevator door closing system. A The minimum voltage required to maintain normal operation is U. min The operating current is I R Then we can get W A =U min ×I min In other words, for the elevator door closing system to function properly, the bus voltage across the capacitor must be greater than or equal to U. min And the capacitance formula:

[0082] Q = C × U;

[0083] Where Q is the charge on the capacitor, C is the capacitance, and U is the voltage across the capacitor. min Substituting into the capacitance formula, we obtain the threshold charge Q on the bus. min That is, the available electrical charge E(t) on the bus is greater than or equal to Q. min This ensures the elevator door closing system functions properly. The available electricity E(t) in the objective function can be calculated to equal Q. min The value of t at time t is used to obtain the target duration t. The time of power outage can be calculated using the current time and the target duration t. This time of power outage is when the available power E(t) is less than the threshold power Q. min When the elevator door closing system is unable to function properly.

[0084] S306. Control the elevator door to decelerate from the first position and stop closing when the power is off.

[0085] After determining the power failure time of the elevator door closing system, in order to control the elevator door to close at a speed of 0 when the power failure time arrives, the acceleration required for the elevator door to decrease from the first speed to 0 during the time between the current time and the power failure time can be calculated using kinematics. The elevator door can then be controlled to close using this acceleration. For example, the door control board can output control signals to control the three-phase input of the motor to control the motor speed, thereby controlling the elevator door closing speed to avoid the elevator door closing too quickly.

[0086] In another embodiment, the corresponding speed control curve can be found in a preset speed and duration lookup table based on the first speed and the duration from the power failure time to the current time, and the elevator door can be controlled to decelerate from the first position to 0 according to the speed control curve.

[0087] In an optional embodiment, the voltage across the capacitor, i.e., the voltage on the bus, can also be acquired during the deceleration of the elevator door. When the acquired voltage is greater than the withstand voltage of the capacitor, the braking resistor is controlled to engage to divide the voltage. Specifically, a voltage sensor can be installed on the bus to acquire the voltage on the bus. When the voltage on the bus is greater than the withstand voltage of the capacitor, it indicates that the motor generates too much electricity, causing the bus voltage to rise. The braking resistor can be set to divide the voltage so that the voltage across the capacitor is less than the withstand voltage, thus preventing the excessive electricity generated by the motor from causing the voltage across the capacitor to be too high and break down the capacitor.

[0088] S307. After the elevator door stops closing at the moment of power failure, obtain the second position of the elevator door.

[0089] In another alternative embodiment, after the elevator door stops closing and the closing speed drops to 0, a second position of the elevator door can be obtained by a position sensor, such as by determining the second position of the elevator door by a rotary encoder.

[0090] S308. When the elevator door is not fully closed as determined by the second position, control any two phases of the motor to perform a star-sealing operation to close the door.

[0091] If the second position of the elevator door indicates that the elevator door is not fully closed, it means that the power of the capacitor and the power generated by the motor are insufficient to keep the elevator door completely closed. In this case, the door can be closed by controlling any two phases of the motor to perform a star-sealing operation. For example, the relay connected to any two phases can be closed, making any two phases of the motor conductive. When the elevator rotates, the current generated by the conductive two phases interacts with the magnetic field of the magnet in the motor to produce braking, causing the elevator door to close slowly. This star-sealing operation can close the door when the available power is insufficient to maintain the closing control. On the one hand, it ensures the safety performance of the elevator door closing, and on the other hand, it reduces energy consumption compared to closing the door by performing a star-sealing operation when the power is cut off.

[0092] Furthermore, during the elevator door closing process, a second speed of the elevator door can be obtained. When the second speed exceeds the speed threshold, any two phases of the control motor can be used to perform a star-sealing operation to close the door. This not only ensures the safety of the elevator door closing, preventing accidents caused by excessive closing speed due to gravity or spring force after a power outage, but also reduces the number of relay actions required for the star-sealing operation and lowers the failure rate when the closing speed exceeds the speed threshold.

[0093] Furthermore, when the control motor performs a star-sealing operation to close the door on any two phases, if the elevator door is detected moving in the opening direction, it indicates that the passenger is opening the elevator door. The star-sealing operation can be released to avoid increasing the resistance for the passenger when opening the door.

[0094] In this embodiment, when power is lost during elevator door closing, an objective function is established using the elevator door's first speed, acceleration, current capacitor charge, and power consumption parameters. This objective function uses duration as the independent variable and the available power of the elevator door closing system as the dependent variable. The target duration is then calculated as the duration at which the available power equals the power threshold, used to calculate the power outage moment of the elevator door closing system. This allows the elevator door to decelerate from its first position and stop closing at the power outage moment. This achieves the conversion of the elevator door's kinetic energy into electrical energy based on its first speed, combined with the current capacitor capacity, to calculate the power outage moment of the elevator door closing system. This ensures the elevator door's speed is zero at the power outage moment, preventing excessively fast door closing speed from impacting passengers and causing door opening / closing losses, thus guaranteeing the safety performance of the elevator door closing. Furthermore, it eliminates the need for relay-based sealing operations, reducing costs and the failure rate caused by frequent relay operation.

[0095] Furthermore, if the elevator door is not fully closed when power fails, the control motor can perform a star-sealing operation to close the door, thereby achieving a slow closing after power failure and ensuring the safety performance of the elevator door closing.

[0096] Example 3

[0097] Figure 4 This is a structural schematic diagram of an elevator door closing control device provided in Embodiment 3 of the present invention. Figure 4 As shown, this elevator door closing control device is used to control an elevator door closing system including a power supply, capacitor, motor, and door control panel. After the power supply fails, the motor converts the kinetic energy of the elevator door into electrical energy to power the door control panel. The device includes:

[0098] The elevator door speed and position acquisition module 401 is used to acquire the first speed and first position of the elevator door when a power failure is detected during the closing process of the elevator door.

[0099] The capacitor charge acquisition module 402 is used to acquire the current charge of the capacitor;

[0100] The power failure time calculation module 403 is used to calculate the power failure time of the elevator door closing system based on the first speed and the current power level.

[0101] The elevator door control module 404 is used to control the elevator door to decelerate from the first position and stop closing when the power failure time is reached.

[0102] Optionally, the power failure time calculation module 403 includes:

[0103] The parameter acquisition unit is used to acquire the preset acceleration of the elevator door and the power consumption parameters of the elevator door closing system.

[0104] The objective function calculation unit is used to construct an objective function based on the first speed, acceleration, current power consumption and power consumption parameters. The objective function takes duration as the independent variable and the available power consumption of the elevator door closing system as the dependent variable.

[0105] The power failure time calculation unit is used to determine the duration when the available power in the objective function equals a preset power threshold as the target duration, and to determine the power failure time of the elevator door closing system based on the target duration.

[0106] Optionally, the power consumption parameters include the power loss of the elevator door and the system power consumption, and the objective function is as follows:

[0107]

[0108] Where E(t) is the available power of the elevator door closing system at time t, m is the mass of the elevator door, V is the first velocity of the elevator door, a is the preset acceleration of the elevator door, η is the power generation efficiency, and W F For power loss, E P W represents the current charge of the capacitor. A t represents the system power consumption and t represents the duration.

[0109] Optionally, the door control panel further includes a braking resistor, and also includes:

[0110] A voltage detection module is used to acquire the voltage across the capacitor during the deceleration process of the elevator door;

[0111] The voltage divider module is used to control the braking resistor to engage for voltage division when the voltage is greater than the withstand voltage of the capacitor.

[0112] Optional, also includes:

[0113] The second position acquisition module is used to acquire the second position of the elevator door after the elevator door stops closing at the time of power failure.

[0114] The sealing and closing module is used to control any two phases of the motor to perform a sealing operation to close the door when the elevator door is not closed properly based on the second position.

[0115] Optional, the sealing and closing module includes:

[0116] The second speed acquisition unit is used to acquire the second speed of the elevator door when it is determined by the second position that the elevator door is not closed in place, and if the elevator door is detected to be closed.

[0117] The sealing and closing unit is used to control any two phase lines of the motor to perform a sealing and closing operation when the second speed is greater than a preset speed threshold.

[0118] Optionally, the sealing and closing module also includes:

[0119] The star-sealing and door-closing release unit is used to release the star-sealing operation when the elevator door is detected to be moving in the opening direction during the star-sealing operation of controlling any two phases of the motor.

[0120] The elevator door closing control device provided in the embodiments of the present invention can execute the elevator door closing control method provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of the method.

[0121] Example 4

[0122] Figure 5 A schematic diagram of an electronic device 50 that can be used to implement embodiments of the present invention is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processors, cellular phones, smartphones, wearable devices (e.g., helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely illustrative and are not intended to limit the implementation of the invention described and / or claimed herein.

[0123] like Figure 5As shown, the electronic device 50 includes at least one processor 51 and a memory, such as a read-only memory (ROM) 52 and a random access memory (RAM) 53, communicatively connected to the at least one processor 51. The memory stores computer programs executable by the at least one processor. The processor 51 can perform various appropriate actions and processes based on the computer program stored in the ROM 52 or loaded into the RAM 53 from storage unit 58. The RAM 53 can also store various programs and data required for the operation of the electronic device 50. The processor 51, ROM 52, and RAM 53 are interconnected via a bus 54. An input / output (I / O) interface 55 is also connected to the bus 54.

[0124] Multiple components in electronic device 50 are connected to I / O interface 55, including: input unit 56, such as keyboard, mouse, etc.; output unit 57, such as various types of monitors, speakers, etc.; storage unit 58, such as disk, optical disk, etc.; and communication unit 59, such as network card, modem, wireless transceiver, etc. Communication unit 59 allows electronic device 50 to exchange information / data with other devices through computer networks such as the Internet and / or various telecommunications networks.

[0125] Processor 51 can be a variety of general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of processor 51 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special-purpose artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any suitable processor, controller, microcontroller, etc. Processor 51 performs the various methods and processes described above, such as elevator door closing control methods.

[0126] In some embodiments, the elevator door closing control method may be implemented as a computer program tangibly contained in a computer-readable storage medium, such as storage unit 58. In some embodiments, part or all of the computer program may be loaded into and / or installed on electronic device 50 via ROM 52 and / or communication unit 59. When the computer program is loaded into RAM 53 and executed by processor 51, one or more steps of the elevator door closing control method described above may be performed. Alternatively, in other embodiments, processor 51 may be configured to perform the elevator door closing control method by any other suitable means (e.g., by means of firmware).

[0127] Various embodiments of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), application-specific standard products (ASSPs), systems-on-a-chip (SoCs), complex programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include implementations in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which may be a dedicated or general-purpose programmable processor, capable of receiving data and instructions from a storage system, at least one input device, and at least one output device, and transmitting data and instructions to the storage system, the at least one input device, and the at least one output device.

[0128] Computer programs used to implement the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when executed by the processor, the computer programs cause the functions / operations specified in the flowcharts and / or block diagrams to be performed. The computer programs may be executed entirely on a machine, partially on a machine, or as a standalone software package, partially on a machine and partially on a remote machine, or entirely on a remote machine or server.

[0129] In the context of this invention, a computer-readable storage medium can be a tangible medium that may contain or store a computer program for use by or in conjunction with an instruction execution system, apparatus, or device. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination thereof. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. More specific examples of machine-readable storage media include electrical connections based on one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0130] To provide interaction with a user, the systems and techniques described herein can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user provides input to the electronic device. Other types of devices can also be used to provide interaction with the user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including sound input, voice input, or tactile input).

[0131] The systems and technologies described herein can be implemented in computing systems that include backend components (e.g., as data servers), or computing systems that include middleware components (e.g., application servers), or computing systems that include frontend components (e.g., user computers with graphical user interfaces or web browsers through which users can interact with implementations of the systems and technologies described herein), or any combination of such backend, middleware, or frontend components. The components of the system can be interconnected via digital data communication of any form or medium (e.g., communication networks). Examples of communication networks include local area networks (LANs), wide area networks (WANs), blockchain networks, and the Internet.

[0132] A computing system can include clients and servers. Clients and servers are generally located far apart and typically interact through communication networks. The client-server relationship is created by computer programs running on the respective computers and having a client-server relationship with each other. The server can be a cloud server, also known as a cloud computing server or cloud host, which is a hosting product within the cloud computing service system to address the shortcomings of traditional physical hosts and VPS services, such as high management difficulty and weak business scalability.

[0133] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this invention can be achieved, and this is not limited herein.

[0134] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. An elevator door closing control method, characterized in that, An elevator door closing system is applied to control an elevator door closing system comprising a power supply, a capacitor, a motor, and a door control panel. The motor converts the kinetic energy of the elevator door into electrical energy to power the door control panel after the power supply fails. The system includes: When a power failure is detected during the closing process of the elevator door, the first speed and first position of the elevator door are obtained; wherein, the first speed is the speed at which the elevator door moves in the closing direction; Get the current charge level of the capacitor; Calculate the power failure time of the elevator door closing system based on the first speed and the current power level; The elevator door is controlled to decelerate from the first position and stop closing when the power failure occurs; The calculation of the power failure time of the elevator door closing system based on the first speed and the current power level includes: Obtain the preset acceleration of the elevator door and the power consumption parameters of the elevator door closing system; An objective function is constructed based on the first speed, acceleration, current power level, and power consumption parameters. The objective function uses duration as the independent variable and the available power of the elevator door closing system as the dependent variable. The duration when the available power in the objective function equals a preset power threshold is determined as the target duration, and the power outage time of the elevator door closing system is determined based on the target duration. The power consumption parameters include the power loss of the elevator door and the system power consumption, and the objective function is as follows: in, Duration Available power for the elevator door closing system For the quality of elevator doors, The first speed of the elevator door. Preset acceleration for elevator doors. For power generation efficiency, To reduce power loss, This represents the current charge of the capacitor. For system power consumption, Duration.

2. The elevator door closing control method according to claim 1, characterized in that, The door control panel also includes a braking resistor, and further includes: During the process of the elevator door decelerating, the voltage across the capacitor is measured; When the voltage is greater than the withstand voltage of the capacitor, the braking resistor is controlled to engage to perform voltage division.

3. The elevator door closing control method according to any one of claims 1-2, characterized in that, After controlling the elevator door to decelerate from the first position and stop closing when the power failure occurs, the method further includes: After the elevator door stops closing at the moment of power failure, the second position of the elevator door is obtained; When the elevator door is determined to be not fully closed by the second position, control any two phases of the motor to perform a star-sealing operation to close the door.

4. The elevator door closing control method according to claim 3, characterized in that, When the elevator door is determined to be not fully closed via the second position, the system controls any two phases of the motor to perform a star-sealing operation to close the door, including: When the elevator door is determined to be not fully closed by the second position, if the elevator door is detected to be closing, the second speed of the elevator door is obtained; When the second speed is greater than the preset speed threshold, control any two phase lines of the motor to perform a star-sealing operation to close the door.

5. The elevator door closing control method according to claim 4, characterized in that, When the elevator door is determined to be not fully closed by the second position, controlling any two phases of the motor to perform a star-sealing operation to close the door also includes: When controlling any two phases of the motor to perform a star-sealing operation to close the door, if an operation to move the elevator door in the opening direction is detected, the star-sealing operation is released.

6. An elevator door closing control device, characterized in that, An elevator door closing system is applied to control an elevator door closing system comprising a power supply, a capacitor, a motor, and a door control panel. The motor converts the kinetic energy of the elevator door into electrical energy to power the door control panel after the power supply fails. The system includes: The elevator door speed and position acquisition module is used to acquire the first speed and first position of the elevator door when a power failure is detected during the closing process of the elevator door; wherein, the first speed is the speed at which the elevator door moves in the closing direction; The capacitor charge acquisition module is used to acquire the current charge level of the capacitor. A power failure time calculation module is used to calculate the power failure time of the elevator door closing system based on the first speed and the current power level. An elevator door control module is used to control the elevator door to decelerate from the first position and stop closing when the power failure time is reached; The power failure time calculation module includes: The parameter acquisition unit is used to acquire the preset acceleration of the elevator door and the power consumption parameters of the elevator door closing system. The objective function calculation unit is used to construct an objective function based on the first speed, acceleration, current power consumption and power consumption parameters. The objective function takes duration as the independent variable and the available power consumption of the elevator door closing system as the dependent variable. The power failure time calculation unit is used to determine the duration when the available power in the objective function is equal to a preset power threshold as the target duration, and to determine the power failure time of the elevator door closing system based on the target duration. The power consumption parameters include the power loss of the elevator door and the system power consumption, and the objective function is as follows: in, Duration Available power for the elevator door closing system For the quality of elevator doors, The first speed of the elevator door. Preset acceleration for elevator doors. For power generation efficiency, To reduce power loss, This represents the current charge of the capacitor. For system power consumption, Duration.

7. An electronic device, characterized in that, The electronic device includes: At least one processor; and A memory communicatively connected to the at least one processor; wherein, The memory stores a computer program that can be executed by the at least one processor, the computer program being executed by the at least one processor to enable the at least one processor to perform the elevator door closing control method according to any one of claims 1-5.

8. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions that cause a processor to execute the elevator door closing control method according to any one of claims 1-5.

Images