An elevator emergency operation method, system and device

Abstract

The application relates to the technical field of elevator emergency operation, and discloses an elevator emergency operation method, system and device, which comprises the following steps: when a new elevator instruction is received, the running energy from a current floor to a passenger's departure floor and the running energy from the passenger's departure floor to a destination floor are predicted based on elevator historical operation data and real-time load of a car; and whether the elevator instruction is allowed is judged based on the running energy from the current floor to the passenger's departure floor, the running energy from the passenger's departure floor to the destination floor and the residual real-time power of an energy storage device of the elevator. The application dynamically estimates the running energy of the elevator in stages, counts the power generation working condition in real time, and allows more elevator instructions that meet the conditions. Before going to the next stopping floor, the power generation and power consumption are measured and calculated through an elevator weighing system, the battery power is dynamically monitored, and the operation strategy is adjusted in real time, so that the event of people being trapped due to insufficient power is effectively avoided, and the safety and reliability of elevator operation are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of elevator emergency operation, and in particular to an elevator emergency operation method, system and device. Background Art

[0002] Existing elevator emergency power supply technology relies on energy storage devices to maintain operation after a mains power outage. Its core solution is to use the traction motor to generate and store energy when the elevator is lightly loaded ascending or fully loaded descending. After a power outage, the battery will be used to supply power. By setting a power threshold greater than or equal to the sum of the minimum power for normal operation and the fixed energy consumption from the bottom floor to the highest floor, the elevator is triggered to stop in advance to avoid trapping people.

[0003] However, since the power threshold is based on fixed scenario presets and does not integrate dynamic parameters such as real-time car load and passenger floor instructions, it is unable to take into account the real-time energy gain of scenarios such as light load upward movement, resulting in large deviations in energy consumption calculations and causing energy waste or excessive consumption. Summary of the Invention

[0004] In view of this, the present invention provides an elevator emergency operation method, system and device to solve the problem of insufficient dynamic adaptability of existing elevator emergency operation methods.

[0005] In a first aspect, the present invention provides an elevator emergency operation method, comprising: after a city power outage, determining whether a new elevator boarding instruction is received; if a new elevator boarding instruction is received, obtaining the current floor of the elevator, the real-time load of the car, the passenger's departure floor, and the destination floor; based on the historical operation data of the elevator and the real-time load of the car, predicting the operating energy from the current floor to the passenger's departure floor; subtracting the remaining real-time power of the elevator's energy storage device from the operating energy from the current floor to the passenger's departure floor to obtain a first residual power; if the first residual power is greater than the minimum standard power of the elevator drive, predicting the operating energy from the passenger's departure floor to the destination floor based on the historical operation data of the elevator and the real-time load of the car, otherwise, boarding the elevator is not allowed; subtracting the first residual power from the operating energy from the passenger's departure floor to the destination floor to obtain a second residual power; if the second residual power is greater than the minimum standard power of the elevator drive, boarding the elevator is allowed, otherwise, boarding the elevator is not allowed.

[0006] In an optional embodiment, the operating energy from the current floor to the passenger's departure floor is predicted based on the historical operating data of the elevator and the real-time load of the car, including: obtaining the first energy conversion efficiency corresponding to the real-time load of the car and the floor difference from the current floor to the passenger's departure floor in the historical operating data of the elevator; estimating the operating energy from the current floor to the passenger's departure floor based on the real-time load of the car, the floor difference from the current floor to the passenger's departure floor, the first energy conversion efficiency and the rated parameters of the elevator.

[0007] In an optional embodiment, based on the historical operation data of the elevator and the real-time load of the car, the operating energy from the passenger's departure layer to the destination layer is predicted, including: obtaining the number of passengers corresponding to the new elevator instruction; estimating the predicted car load based on the number of passengers and the real-time load of the car; obtaining the second energy conversion efficiency corresponding to the predicted car load and the floor difference from the passenger's departure layer to the destination layer in the historical operation data of the elevator; estimating the operating energy from the passenger's departure layer to the destination layer based on the predicted car load, the floor difference from the passenger's departure layer to the destination layer, the second energy conversion efficiency and the rated parameters of the elevator.

[0008] In an optional embodiment, before predicting the operating energy from the current floor to the passenger's departure floor based on the elevator's historical operating data and the real-time load of the car, it also includes: obtaining the remaining real-time power of the elevator's energy storage device and comparing it with the maximum single-trip operating consumption; if the remaining real-time power of the elevator's energy storage device is greater than the maximum single-trip operating consumption, then the elevator is allowed to ride, otherwise the remaining real-time power of the elevator's energy storage device is compared with the minimum standard power of the elevator drive; if the remaining real-time power of the elevator's energy storage device is less than the minimum standard power of the elevator drive, then the elevator stops at the nearest floor station, otherwise the operating energy from the current floor to the passenger's departure floor is predicted based on the elevator's historical operating data and the real-time load of the car.

[0009] In an optional embodiment, the elevator emergency operation method also includes: if riding the elevator is allowed, responding to the new elevator riding instruction and running to the next stop floor; if riding the elevator is not allowed, executing the registered elevator riding instruction and running to the next stop floor; before running to the next stop floor, it also includes: based on the historical operation data of the elevator and the real-time load of the car, predicting the operating energy from the current floor to the next stop floor; subtracting the remaining real-time power of the energy storage device of the current elevator from the operating energy from the current floor to the next stop floor to obtain a third remaining power; if the third remaining power is greater than the minimum standard power of the elevator drive, running to the next stop floor, otherwise stopping at the nearest floor station.

[0010] In an optional embodiment, the operating energy from the current floor to the next stop floor is predicted based on the historical operating data of the elevator and the real-time load of the car, including: obtaining the third energy conversion efficiency corresponding to the real-time load of the car and the floor difference from the current floor to the next stop floor in the historical operating data of the elevator; estimating the operating energy from the current floor to the next stop floor based on the real-time load of the car, the floor difference from the current floor to the next stop floor, the third energy conversion efficiency and the rated parameters of the elevator.

[0011] In the second aspect, the present invention provides an elevator emergency operation system, comprising: an elevator, including an elevator control system and an elevator drive system, the elevator control system is connected to a weighing system and a destination floor dispatching system, and is used to receive elevator boarding instructions, and obtain the current floor of the elevator, the real-time load of the car, the passenger's departure floor, and the destination floor; the elevator drive system is used to drive the elevator to operate; a power-saving and emergency management device, comprising a power-saving and power management control system, a bidirectional DC / DC converter, and a battery, the bidirectional DC / DC converter is connected to the elevator drive system, and the power-saving and power management control system is used to control the bidirectional DC / DC converter to drive the battery to supply power to the elevator; wherein the power-saving and power management control system is communicatively connected to the elevator control system, and is used to execute the elevator emergency operation method of the first aspect and any optional implementation manner thereof.

[0012] In an optional embodiment, the power saving and emergency management device further includes an auxiliary power supply module, which is respectively connected to the battery and the elevator control system and is used to be controlled by the power saving and power management control system to supply power to the elevator control system.

[0013] In a third aspect, the present invention provides an elevator emergency operation device, comprising: a data acquisition module for obtaining the current floor of the elevator, the real-time load of the car, the passenger's departure floor, the destination floor, and the remaining real-time power of the elevator's energy storage device when a new elevator boarding instruction is received; an energy calculation module for predicting the operating energy from the current floor to the passenger's departure floor based on the elevator's historical operating data and the real-time load of the car, and predicting the operating energy from the passenger's departure floor to the destination floor based on the elevator's historical operating data and the real-time load of the car; a control decision module for subtracting the remaining real-time power of the elevator's energy storage device from the operating energy from the current floor to the passenger's departure floor to obtain a first remaining power; if the first remaining power is greater than the minimum standard power of the elevator drive, the energy calculation module is controlled to predict the operating energy from the passenger's departure floor to the destination floor, otherwise boarding the elevator is not allowed; the first remaining power is subtracted from the operating energy from the passenger's departure floor to the destination floor to obtain a second remaining power; if the second remaining power is greater than the minimum standard power of the elevator drive, boarding the elevator is allowed, otherwise boarding the elevator is not allowed.

[0014] In a fourth aspect, the present invention provides a computer device comprising: a memory and a processor, the memory and the processor being communicatively connected to each other, the memory storing computer instructions, and the processor executing the elevator emergency operation method of the first aspect or any corresponding embodiment thereof by executing the computer instructions.

[0015] This invention dynamically estimates the elevator's operating energy in stages and incorporates power generation conditions in real time, allowing for more qualified boarding instructions and increasing the number of emergency operations compared to existing fixed-threshold solutions. Before proceeding from the current floor to the next, the elevator's weighing system measures and calculates power consumption. By dynamically monitoring the battery level and adjusting the operating strategy in real time, this effectively avoids entrapment due to insufficient power, improving the safety and reliability of elevator operation. This improves the real-time battery level while ensuring absolute safety during elevator rides. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 is a flow chart of an elevator emergency operation method according to an embodiment of the present invention;

[0018] Figure 2 is a flow chart of a subroutine for predicting energy consumption according to an embodiment of the present invention;

[0019] Figure 3 1 is a flowchart of a subroutine for calculating the energy consumption of the next docking floor according to an embodiment of the present invention;

[0020] Figure 4 is a flow chart of a main program according to an embodiment of the present invention;

[0021] Figure 5 is a structural block diagram of an elevator emergency operation system according to an embodiment of the present invention;

[0022] Figure 6 Schematic diagram of the hardware structure of a computer device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0023] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0024] According to the embodiment of the present application, an elevator emergency operation method is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described herein can be executed in an order different from that shown.

[0025] In this embodiment, an elevator emergency operation method is provided, as shown in the flowchart, comprising: Figure 1

[0026] Step S1: After the power failure, it is judged whether a new elevator instruction is received.

[0027] Specifically, after the power failure, if a new elevator instruction is received, step S2 is entered, otherwise the current registered elevator instruction is executed or the elevator is stopped.

[0028] Illustratively, when the power failure event occurs, the elevator control system immediately starts the emergency power supply mode and switches to the energy storage device in the elevator energy storage system for power supply. At this time, the system enters the instruction monitoring state, and through the operation panel in the elevator car, the call button at each floor and the remote control terminal, it is monitored in real time whether there is a new elevator instruction input. The system will continue to poll the instruction signal, and if no new instruction is detected within the preset time window, it will remain in standby state or execute the current registered elevator instruction, or stop the elevator; once a new instruction is detected, the subsequent process is triggered to ensure timely response to passenger demand.

[0029] Step S2: If a new elevator instruction is received, the current floor of the elevator, the real-time load of the car, the departure floor and the destination floor of the passenger are obtained.

[0030] Specifically, once it is confirmed that a new elevator instruction is received, the elevator control system will simultaneously activate multiple sensors and data acquisition modules. Through the position sensor (such as photoelectric sensor or magnetic grid sensor) installed in the elevator shaft, the current floor of the elevator is accurately obtained; the weighing sensor at the bottom of the car is used to collect and analyze the car load data in real time, which is accurate to the kilogram level to ensure the accuracy of subsequent energy prediction. At the same time, the system extracts the departure floor and destination floor information input by the passenger from the instruction input terminal, if the passenger inputs the instruction in the car, the operation panel data is directly read; if it is a floor call instruction, the departure floor is determined by combining the elevator running direction to ensure the integrity and accuracy of the information acquisition.

[0031] Step S3: Based on the historical operation data of the elevator and the real-time load of the car, the running energy from the current floor to the departure floor of the passenger is predicted.

[0032] ​Specifically, upon receiving a new boarding instruction, the operating energy prediction program is initiated. To determine the operating energy from the current floor to the passenger's departure floor, the system first retrieves historical data from the elevator's historical operation database, including energy consumption records under conditions similar to the current operating conditions, such as similar car loads, the same travel direction, and similar floor spacing. This data then calculates the energy conversion efficiency under the current operating conditions. Based on this energy conversion efficiency and the real-time car load, the system then predicts the operating energy from the current floor to the passenger's departure floor.

[0033] Step S4: Subtract the remaining real-time power of the energy storage device of the elevator from the operating energy from the current floor to the passenger's departure floor to obtain a first remaining power.

[0034] Specifically, based on the location information of the elevator's current floor and the passenger's departure floor, combined with the physical model of elevator operation, the operating energy consumed / generated to travel from the current floor to the passenger's departure floor is calculated. This physical model comprehensively considers fixed parameters such as the elevator's own weight, the frictional resistance of the empty car, the height difference between floors, and variables such as the energy consumption coefficient corresponding to the current elevator's operating speed. Finally, the remaining real-time power of the energy storage device is subtracted from the operating energy from the current floor to the passenger's departure floor. The difference is the first remaining power. This value reflects the remaining available power of the energy storage device after the elevator reaches the passenger's departure floor and is an important basis for determining the feasibility of subsequent elevator rides.

[0035] It's important to note that the difference between the remaining real-time charge of the elevator's energy storage device and the operating energy from the current floor to the passenger's departure floor is calculated. This difference is signed by subtracting the remaining real-time charge of the elevator's energy storage device from the operating energy from the current floor to the passenger's departure floor. If the remaining real-time charge of the elevator's energy storage device is less than the operating energy from the current floor to the passenger's departure floor, the difference is negative. Therefore, this step not only compares the remaining real-time charge of the elevator's energy storage device with the operating energy from the current floor to the passenger's departure floor (by checking the sign of the result), but also calculates the excess value when the remaining real-time charge of the elevator's energy storage device exceeds the operating energy from the current floor to the passenger's departure floor.

[0036] Step S5: If the first remaining power is greater than the minimum standard power required for elevator driving, the passenger's running energy from the departure floor to the destination floor is predicted based on the historical operation data of the elevator and the real-time load of the car. Otherwise, the passenger is not allowed to take the elevator.

[0037] Specifically, after obtaining the first remaining power, it is compared with the minimum standard power of the elevator drive. If the first remaining power is greater than the minimum standard power of the elevator drive, it indicates that the elevator has sufficient power to reach the passenger's departure floor and is ready to carry out the subsequent journey. At this time, the operating energy prediction program is restarted. The program will call the elevator's historical operation database, which records a large amount of operating energy consumption data for different floor combinations and different car load conditions. At the same time, the pressure sensor installed at the bottom of the car obtains the current car load information in real time to predict the operating energy from the passenger's departure floor to the destination floor. If the first remaining power is less than or equal to the minimum standard power of the elevator drive, it indicates that the remaining real-time power of the energy storage device is insufficient to support the elevator from the current floor to the passenger's departure floor. There is no need to enter the subsequent prediction program. To ensure the safety of the elevator operation, the system will immediately issue an alarm prompt, prohibit passengers from boarding the elevator, and the elevator will not respond to relevant floor call commands.

[0038] It is understandable that if the remaining real-time power of the elevator's energy storage device is less than the operating energy from the current floor to the passenger's departure floor, the difference is a negative number, which must be less than the minimum standard power required to drive the elevator.

[0039] Specifically, the energy required to travel from a passenger's departure floor to their destination is calculated at this stage, also based on historical data and real-time parameters. The energy conversion efficiency under current operating conditions is also calculated. Based on this energy conversion efficiency and the car's real-time load, the energy required to travel from the passenger's departure floor to their destination is predicted.

[0040] For example, a historical elevator operation database is established, storing multi-dimensional data covering different loads, floor combinations, and operating time periods for at least the past three months. The system uses machine learning algorithms (such as linear regression or neural network models) to match and analyze current real-time elevator load data with historical data. An operating energy prediction model is constructed for the two stages: "from the current floor to the passenger's departure floor" and "from the passenger's departure floor to the destination floor," taking into account factors such as elevator operation direction (up or down), operating speed curve, and motor efficiency.

[0041] Step S6: Subtract the first remaining power from the passenger's running energy from the departure floor to the destination floor to obtain a second remaining power.

[0042] Specifically, after the prediction of the passenger's running energy from the departure floor to the destination floor is completed, the elevator control system will again calculate the power. The first remaining power obtained in step S4 is subtracted from the predicted passenger's running energy from the departure floor to the destination floor. Through this subtraction operation, the result obtained is the second remaining power. This value represents the final remaining power of the energy storage device after the elevator transports the passenger from the departure floor to the destination floor. Compared with the first remaining power, the calculation result of the second remaining power is more critical for judging whether the elevator can successfully complete the entire ride and safely stop.

[0043] It should be noted that the first remaining power is subtracted from the passenger's running energy from the departure floor to the destination floor, that is, the difference obtained by subtracting the passenger's running energy from the departure floor to the destination floor from the first remaining power, and the difference has a positive or negative sign; if the first remaining power is less than the passenger's running energy from the departure floor to the destination floor, the difference is negative. Therefore, this step not only compares the size of the first remaining power and the passenger's running energy from the departure floor to the destination floor (through the positive or negative of the result), but also calculates the size of the excess value when the first remaining power is greater than the passenger's running energy from the departure floor to the destination floor.

[0044] Step S7: If the second remaining power is greater than the minimum standard power for elevator driving, the ride is allowed, otherwise the ride is not allowed.

[0045] Specifically, the second remaining power is compared with the minimum standard power for elevator driving. If the second remaining power is greater than the minimum standard power, it means that after completing the current ride task, the elevator still has enough power to maintain subsequent basic operation, such as stopping at the destination floor, performing necessary equipment self-checking, etc. At this time, the system will allow the passenger to perform the ride operation, and the elevator will go to the departure floor where the passenger is located and perform the transportation task according to the predetermined program. Conversely, if the second remaining power is less than or equal to the minimum standard power, it means that even if the passenger is transported to the destination floor, the elevator may face the risk of insufficient power to ensure subsequent safe operation. In order to avoid this situation and ensure the safety of passengers and the normal operation of the elevator equipment, the system will prohibit the ride, and explain the reason to the passenger through the display screen in the car, voice prompt, etc. At the same time, the prohibition of the ride is displayed on the calling panel outside the elevator.

[0046] It should be noted that the minimum standard power for elevator driving is the minimum power that the energy storage device can drive the elevator to run to the nearest landing position and open the door after the power is cut off.

[0047] It's understandable that an elevator can be in either power generation or discharge mode during operation. Therefore, the operating energy calculated above can represent either power consumption or power generation. During calculation, power consumption can be set as a positive value, while power generation can be set as a negative value. If the second residual power is negative, it must be less than the minimum standard power required to drive the elevator.

[0048] In some optional embodiments, based on historical elevator operation data and real-time elevator car load, the operating energy from the current floor to the passenger's departure floor is predicted, including:

[0049] Obtain the first energy conversion efficiency corresponding to the real-time car load and the floor difference between the current floor and the passenger's departure floor in the historical operation data of the elevator; estimate the operating energy from the current floor to the passenger's departure floor based on the real-time car load, the floor difference between the current floor and the passenger's departure floor, the first energy conversion efficiency and the rated parameters of the elevator.

[0050] The calculation formula for the operating energy from the current floor to the passenger's departure floor is:

[0051]

[0052] Among them, ΔE1 is the running energy from the current floor to the passenger's departure floor; H1 is the floor difference between the current floor and the passenger's departure floor; M is the real-time load of the car; M0 is the weight difference between the car and the counterweight; η 1 is the first energy conversion efficiency. M0 can be obtained through the rated parameters of the elevator. η 1 can be obtained based on the energy conversion efficiency under the same or similar operating conditions recorded or analyzed in the historical operation data of the elevator. For example, the energy conversion efficiency recorded in the historical operation data that is the same or similar to the real-time load of the car and the floor difference between the current floor and the passenger's departure floor is selected as the first energy conversion efficiency.

[0053] In some optional embodiments, based on the historical operation data of the elevator and the real-time load of the car, the operating energy from the passenger's departure layer to the destination layer is predicted, including: obtaining the number of passengers corresponding to the new elevator instruction; estimating the predicted car load based on the number of passengers and the real-time load of the car; obtaining the second energy conversion efficiency corresponding to the predicted car load and the floor difference between the passenger's departure layer and the destination layer in the historical operation data of the elevator; estimating the operating energy from the passenger's departure layer to the destination layer based on the predicted car load, the floor difference between the passenger's departure layer and the destination layer, the second energy conversion efficiency and the rated parameters of the elevator.

[0054] Specifically, when a new boarding instruction is issued, the system first needs to determine the corresponding number of passengers. This can usually be achieved by various technical means. For example, an infrared sensor or camera installed at the entrance of the elevator is used to count the passengers entering the elevator through computer vision algorithms. For example, a target detection algorithm based on deep learning can accurately identify individual passengers and then count the number of passengers. For example, the number of passengers is obtained by inputting the number of passengers when the passenger operates the call at the destination layer of the elevator system. After obtaining the number of passengers, the weight of the passengers to be boarded is calculated according to the average weight of the passengers, and the real-time load of the car is added to the current car, that is, the predicted load of the car during the process of boarding passengers from the starting layer to the destination layer. Among them, the average weight of the passengers can be preset as the standard weight of a single person, or the average weight of the passengers can be calculated according to the number of passengers and the load of the car in the historical operation data of the elevator.

[0055] Alternatively, according to the predicted load of the car and the floor difference, the search conditions are set, and the records that meet the conditions are selected from the historical data. Then, by calculating the ratio of the actual energy consumption to the theoretical energy consumption (calculated based on the rated parameters of the elevator) in these records, a plurality of energy conversion efficiency data is obtained. Finally, statistical methods such as mean, weighted average (different weights can be given according to factors such as the time of the data, the quality of the data, etc.) are used to calculate the final second energy conversion efficiency. The efficiency value reflects the actual efficiency of energy conversion when the elevator is running under specific load and floor difference conditions, and is an important parameter for accurately predicting the running energy.

[0056] The running energy calculation formula of the passengers from the starting layer to the destination layer is:

[0057]

[0058] Among them, ΔE2 is the running energy of the passengers from the starting layer to the destination layer; H1 is the floor difference from the starting layer to the destination layer of the passengers; M is the predicted load of the car; M0 is the weight difference between the car and the counterweight; η 2 is the second energy conversion efficiency.

[0059] In an actual application scenario, if a new boarding instruction is received, a predicted energy consumption subprogram is triggered, and the specific flowchart of the program is as shown in Figure 2 According to the current state of the elevator (such as load, floor, etc.), the registered floor information of the passengers, and the battery power, etc., the energy that may be consumed to complete the transportation task of the new registration instruction is predicted.

[0060] Specifically, Figure 2In the middle, after receiving the new floor registration instruction, the elevator control system will immediately start the remaining real-time power evaluation mechanism, through the accurate operation energy prediction algorithm, to judge whether the current energy storage device's remaining real-time power is sufficient to support this time's elevator demand. If the evaluation result shows that the power is insufficient, the system will immediately send a "power insufficient, unable to run" prompt to the passenger, and refuse to execute the elevator instruction; if the power meets the demand, register the instruction and plan the running path. The specific processing flow is as follows:

[0061] (1) Process start: When the passenger inputs the elevator instruction through the car operating panel, floor call button or hall outside layer selector, the elevator control system responds immediately, triggering the elevator demand processing flow.

[0062] (2) Get registered floor information: The system reads the passenger's registered destination floor information in real time, including the call floor, destination floor, and the number of passengers calculated based on the load sensor data. Through the analysis of these data, the passenger's travel demand and destination information are determined.

[0063] (3) Position the current floor of the elevator: Use the high-precision magnetic grid sensor or absolute value encoder installed in the elevator shaft, or get the floor information from the elevator control system, to get the current position of the elevator in real time, providing basic data for subsequent path planning and operation energy calculation.

[0064] (4) Collect car load data: Through the pressure sensor array at the bottom of the car, accurately measure the real-time load of the car. The system filters and calibrates the collected load data to ensure the accuracy and reliability of the data, providing key parameters for operation energy estimation.

[0065] (5) Estimate the running energy ΔE1 from the current floor to the call floor: Based on the real-time load of the car, the current floor of the car, the passenger call floor, and other information, combined with the running energy records in the historical running database, use the running energy prediction model constructed by machine learning algorithm to estimate the first energy conversion efficiency under the corresponding working condition, and accurately estimate the energy consumed / generated by the elevator running from the current position to the call floor. This model fully considers the running energy characteristics of different stages such as start-up, acceleration, uniform speed, deceleration, and the impact of load changes on running energy.

[0066] (6) First remaining power evaluation: Compare the estimated running energy ΔE1 with the remaining real-time power of the energy storage device, and compare it with the pre-set safety power threshold SOC1 (i.e. the minimum standard power of the elevator drive).

[0067] Insufficient battery: If ΔE1 is greater than the real-time remaining battery capacity, or ΔE1 is less than the real-time remaining battery capacity, but the difference between the real-time remaining battery capacity and ΔE1, i.e., the first remaining capacity, is less than the safety power threshold SOC1, it means that the elevator cannot safely complete the current operation. In this case, the system will immediately issue a voice and text prompt to the passenger, informing them of the reason for not being able to board the elevator, and will refuse to execute the elevator boarding instruction, ending the process.

[0068] Sufficient power: If ΔE1 is less than the real-time remaining battery power and the first remaining power is higher than the safety power threshold SOC1, it is considered that the current power can meet the current elevator riding needs, and the system will continue to execute subsequent processes.

[0069] (7) Obtaining the weight of passengers calling the elevator: Based on the passenger call registration information, the number of passengers calling the elevator is obtained. Based on the load information and number of passengers recorded in previous operation data, the average weight of each passenger is calculated. The weight of the passenger calling the elevator is obtained by multiplying the number of passengers calling the elevator and the average weight of the passengers.

[0070] (8) Estimate the operating energy ΔE2 from the passenger's departure floor to the destination floor: The predicted car load is obtained based on the sum of the weight of the passenger calling the elevator and the current elevator load. Based on the predicted car load, the elevator calling floor, destination floor and other information in the passenger's elevator call registration information, and the operating energy records in the historical operation database, the operating energy prediction model constructed using the machine learning algorithm is used to calculate the second energy conversion efficiency under the corresponding working conditions, and accurately estimate the energy consumed / generated by the elevator from the passenger's departure floor to the destination floor.

[0071] (9) Second remaining power evaluation: The estimated operating energy ΔE2 is compared with the first remaining power and compared with the pre-set safety power threshold SOC1 (i.e., the minimum standard power for elevator drive).

[0072] Insufficient battery: If ΔE2 is greater than the first remaining battery, or ΔE2 is less than the first remaining battery, but the difference between the first remaining battery and ΔE2 (the second remaining battery) is less than the safety battery threshold SOC1, it means that the elevator cannot safely complete the current operation. In this case, the system will immediately issue a voice and text prompt to the passenger, informing them of the reason for not being able to board the elevator, and will refuse to execute the elevator boarding request, ending the process.

[0073] Sufficient power: If ΔE2 is less than the first remaining power and the second remaining power is higher than the safety power threshold SOC1, it is considered that the current power can meet the current elevator demand, and the system will respond and register the elevator instruction.

[0074] In some optional embodiments, before predicting the running energy from the current floor to the passenger's departure floor based on the historical elevator operation data and the real-time car load, the method further includes:

[0075] (1) Obtain the remaining real-time power of the elevator's energy storage device and compare it with the maximum power consumption of a single trip.

[0076] Specifically, the maximum energy consumption per trip is a key parameter derived from statistical analysis of the elevator's historical operating data. By statistically analyzing the energy consumption of each elevator run in the historical operation records, the maximum energy consumption under different operating conditions (such as full load, heavy load, light load, and different floor differences) is screened out, and this serves as the primary criterion for determining whether the energy storage device has sufficient power. After obtaining the remaining real-time power of the energy storage device, it is immediately compared with the maximum energy consumption per trip to preliminarily determine whether the current power is sufficient to support a complete operation. For example, the maximum energy consumption per trip is the greater of the energy consumption of running from the lowest floor to the highest floor when the elevator is fully loaded or the energy consumption of running from the highest floor to the lowest floor when the elevator is unloaded.

[0077] (2) If the remaining real-time power of the elevator's energy storage device is greater than the maximum power consumption of a single trip, the passenger is allowed to take the elevator. Otherwise, the remaining real-time power of the elevator's energy storage device is compared with the minimum standard power of the elevator drive.

[0078] Specifically, when the remaining real-time power of the elevator's energy storage device is greater than the maximum single-trip power consumption, it indicates that the current power level is sufficient to ensure that the elevator can complete a full trip from the current floor to the passenger's departure floor and then to the destination floor, with sufficient power to maintain basic system operations and respond to emergencies. In this case, the elevator immediately responds to the elevator boarding request and allows passengers to use the elevator normally. There is no need to proceed to the subsequent energy prediction step.

[0079] If the remaining real-time power is less than the maximum single-trip power consumption, the next step in the judgment process is to compare the remaining real-time power with the elevator drive's minimum standard power. This minimum standard power is the minimum power requirement for the elevator to safely operate to the nearest landing. This value is pre-set by the elevator manufacturer based on factors such as the elevator's drive system characteristics and safety standards, and is stored in the elevator control system. Setting this threshold is crucial, as it ensures that the elevator can safely stop even when the power is low, avoiding safety accidents caused by power depletion.

[0080] (3) If the remaining real-time power of the elevator's energy storage device is less than the minimum standard power required for the elevator to operate, the elevator will stop at the nearest floor. Otherwise, based on the elevator's historical operating data and the real-time load of the car, the operating energy from the current floor to the passenger's departure floor is predicted.

[0081] Specifically, when the remaining real-time power of the elevator's energy storage device falls below the minimum standard power required to operate the elevator, the elevator control system will immediately initiate an emergency procedure to ensure passenger safety and normal operation of the equipment. The elevator will prioritize stopping at the nearest landing.

[0082] Specifically, if the remaining real-time power is greater than or equal to the minimum standard power of the elevator drive, it indicates that the elevator has the possibility of running from the current floor to the passenger departure floor. At this time, the system will accurately predict the running energy from the current floor to the passenger departure floor based on the historical running data of the elevator and the real-time load of the car, according to the established energy prediction method (such as the steps of obtaining the number of passengers, estimating the predicted load of the car, determining the second energy conversion efficiency, etc. as described above). The prediction result will provide an important basis for the energy management, dispatch optimization and subsequent power monitoring of the elevator, and help to improve the energy efficiency and safety of the elevator operation.

[0083] In some optional embodiments, the elevator emergency operation method further comprises: if the boarding is allowed, running to the next stop floor in response to the new boarding instruction. If the boarding is not allowed, executing the registered boarding instruction and running to the next stop floor.

[0084] In some optional embodiments, before running to the next stop floor, the elevator emergency operation method further comprises starting a real-time calculation subroutine, specifically comprising: predicting the running energy from the current floor to the next stop floor based on the historical running data of the elevator and the real-time load of the car; subtracting the running energy from the current floor to the next stop floor from the remaining real-time power of the energy storage device of the current elevator to obtain a third remaining power; if the third remaining power is greater than the minimum standard power of the elevator drive, running to the next stop floor, otherwise stopping at the nearest floor station.

[0085] Similarly, the third remaining power here has a positive and negative sign, and when the third remaining power is negative, it must be less than the minimum standard power of the elevator drive.

[0086] Specifically, if the third remaining power is less than or equal to the minimum standard power, the emergency stop program is started immediately to ensure the safety of passengers and the normal operation of equipment. For example, first calculate the nearest safety floor station, considering factors such as the current position of the elevator, the running direction, the usage of each floor station, etc., and select the nearest floor station without failure as the stopping point. Then, by controlling the frequency converter of the traction machine, the running speed of the elevator is adjusted, and a fast and smooth deceleration strategy is adopted to make the elevator stop safely at the nearest floor station in the shortest time.

[0087] Optionally, during the emergency stop process, the safety protection system of the elevator is fully started. The emergency lighting and ventilation system in the car is automatically turned on to ensure the basic comfort and safety of passengers during the stop; the emergency communication device (such as the intercom system, video call equipment) is automatically connected to the property management center or emergency rescue platform to facilitate the passengers to contact the outside world; at the same time, the elevator control system will send detailed emergency stop alarm information to the property management center and maintenance unit, including the elevator position, remaining power, emergency reason, etc., so as to facilitate the staff to respond and handle in time.

[0088] In some optional embodiments, based on the historical operation data of the elevator and the real-time load of the car, the operation energy from the current floor to the next landing floor is predicted, including: (1) obtaining the third energy conversion efficiency corresponding to the real-time load of the car and the floor difference from the current floor to the next landing floor in the historical operation data of the elevator; and (2) estimating the operation energy from the current floor to the next landing floor based on the real-time load of the car, the floor difference from the current floor to the next landing floor, the third energy conversion efficiency and the rated parameters of the elevator.

[0089] For example, the flowchart of the actual calculation subroutine is as follows: Figure 3 Based on the height difference H3 between the real-time car load M and the next landing Fnext, and using the accurate η3 value (i.e., the third energy conversion efficiency) in the historical data, the actual operating energy ΔE_real is calculated. The specific calculation is as follows:

[0090]

[0091] If SOC-ΔE_real≥SOC1, the elevator will start; otherwise, it will stop at the nearest location, open the door to let the passengers in, and give a voice or other prompt that the battery is low and the elevator will stop temporarily.

[0092] In this embodiment, no matter whether the elevator is executing a new elevator boarding instruction or a registered elevator boarding instruction, no matter whether the elevator has passed the operating energy prediction step, as long as the elevator starts to prepare to go to the next stop, it will first predict the operating energy of the elevator from the current floor to the next stop. If the prediction result is that the remaining real-time power of the energy storage device is greater than the operating energy from the current floor to the next stop, and the third remaining power is greater than the minimum standard power of the elevator drive, it will run to the next stop, otherwise it will stop at the nearest floor station to ensure that each journey is within a safe and controllable range.

[0093] In an actual application scenario, the main flow chart of this embodiment is as follows: Figure 4 As shown, the details are as follows:

[0094] (1) Start.

[0095] The entire elevator operation process starts and enters the initial status detection stage.

[0096] (2) Check the battery level.

[0097] Perform real-time detection of the battery power in the elevator emergency system to obtain the current real-time remaining battery power information, providing a basis for subsequent operation decisions.

[0098] (3) Determine whether the consumption is lower than the maximum value of a single trip.

[0099] If the battery level is higher than or equal to the maximum power consumption of a single trip, it means that the battery level can definitely cover the operating energy required for the new elevator instruction, the elevator can respond to the elevator call signal and perform the operation task normally, and the process will go to "run to the next landing". When the battery level is lower than the maximum power consumption of a single trip, that is, SOC <SOC1+SOC2,则意味着电池电量可能不足以支持电梯完成一次完整的运行周期,此时进入下一步判断。其中,SOC1为电梯驱动的最低标准电量,SOC2为电梯从底层到最高层消耗的最高电量,SOC为储能设备剩余实时电量。

[0100] (4) Determine whether the system can continue to operate.

[0101] Evaluate the elevator's current overall status and battery charge to determine whether the elevator is still capable of continuing to operate, such as whether there are other energy replenishment sources (such as power generation during elevator downdrafts) to maintain basic operation.

[0102] If SOC <SOC1,则表示无法继续运行,则流程结束,电梯停止运行,以防止因电量耗尽导致困人事件。如果可以继续运行,继续下一步操作。

[0103] (5) Detect floor registration signal.

[0104] Check for new floor registration signals, meaning whether any passengers have requested to board the elevator through the destination floor dispatch system. If there are registered commands, the elevator needs to continue according to the original operation plan, and the process will transfer to "Run to the next landing." If there are new floor registration signals, further determination is made as to whether there are registered commands. If there are no new registrations or registered commands, there are no requests or demands for operation.

[0105] (6) If there is a new registration instruction, confirm that the new passenger registration instruction has been received, and estimate and evaluate the energy consumption of this transportation task.

[0106] (7) Energy consumption prediction subroutine.

[0107] A special energy prediction program is started to predict the energy that may be consumed to complete the transportation task of the new registration instruction based on the current status of the elevator (such as load, floor, etc.), the passenger's registration floor information, and battery power.

[0108] (8) Determine whether the power consumption exceeds the remaining real-time power of the battery.

[0109] If the predicted power consumption exceeds the real-time remaining battery charge, the elevator will not register the new floor command to ensure passenger safety and prevent entrapment. The passenger will be notified that the elevator call cannot be responded to at this time, and the process ends. If the power consumption is within the acceptable range of the real-time remaining battery charge, the new floor command is registered, and the elevator will proceed with the normal operation process, transferring the process to "travel to the next landing."

[0110] (9) Run to the next stop.

[0111] The elevator starts running to the next stop floor according to the current operation task and instructions, and continuously monitors the battery power and various operating status parameters during the operation.

[0112] (10) Calculate the energy consumption of the next docking layer according to the actual situation.

[0113] A special energy prediction program is started to calculate the energy that may be consumed to complete the transportation task of the new registration instruction based on the current status of the elevator (actual load, floor location, etc.), the passenger's registration floor information, and battery power.

[0114] (11) Determine whether the power consumption exceeds the remaining real-time power of the battery.

[0115] If the real-time monitored power consumption is good and does not exceed the real-time remaining battery power, the elevator will continue to operate normally to the destination floor. If the power consumption exceeds the real-time remaining battery power, for safety reasons, the elevator will immediately stop at the nearest floor, open the car door, allow passengers to exit, and the process ends to prevent people from being trapped due to power depletion.

[0116] This embodiment provides an elevator emergency operation system, such as Figure 5 Shown, including:

[0117] The elevator includes an elevator control system and an elevator drive system. The elevator control system is connected to the weighing system and the destination floor dispatching system, and is used to receive elevator boarding instructions, as well as obtain the current floor of the elevator, the real-time load of the car, the passenger's departure floor, and the destination floor; the elevator drive system is used to drive the elevator to operate.

[0118] The power saving and emergency management device includes a power saving and power management control system, a bidirectional DC / DC converter, and a battery. The bidirectional DC / DC converter is connected to the elevator drive system. The power saving and power management control system is used to control the bidirectional DC / DC converter to drive the battery to supply power to the elevator.

[0119] Wherein, the power saving and power management control system is communicatively connected with the elevator control system, and is used to execute the above-mentioned elevator emergency operation method.

[0120] In some optional embodiments, the power saving and emergency management device further includes an auxiliary power supply module, which is respectively connected to the battery and the elevator control system, and is used to be controlled by the power saving and power management control system to supply power to the elevator control system.

[0121] Specifically, Figure 5 In the present invention, the elevator emergency operation system includes a power-saving and emergency device and an elevator. The power-saving and emergency device includes a power-saving and power management control system (EMS), a bidirectional DC / DC converter, a battery, and an auxiliary power supply module. The power-saving and power management control system (EMS) is used to monitor and manage the battery's charging and discharging process, as well as communicate with the elevator control system. The bidirectional DC / DC converter realizes the power conversion between the battery and the elevator drive system. The auxiliary power supply module is used to convert the battery into the power required by the elevator control system. The elevator includes an elevator control system and an elevator drive system. The elevator control system is connected to a weighing system and a destination floor dispatch system selector. The elevator drive system includes a motor, a rectifier module, and an inverter module. The destination floor dispatch system selector is used to register and manage passengers' destination floor information. The weighing system is used to monitor the load in the elevator car in real time. The rectifier module and inverter module are used to drive the motor. The mains power is connected to the rectifier module to provide power to the motor.

[0122] Figure 5 When the mains power is normal, the rectifier and inverter modules power the elevator motor and charge the battery. When the mains power is disconnected, the energy-saving and power management control system (EMS) controls the bidirectional DC / DC converter to convert the battery into the power required by the motor, which is then used to power the elevator via the inverter module. Simultaneously, the auxiliary power supply module converts the battery into the power required by the elevator control system, enabling emergency operation.

[0123] This embodiment also provides an elevator emergency operation device for implementing the above-mentioned embodiments and preferred implementations. Details already described will not be repeated. As used below, the term "module" may refer to a combination of software and / or hardware that implements a predetermined function. Although the devices described in the following embodiments are preferably implemented using software, implementation using hardware, or a combination of software and hardware, is also possible and contemplated.

[0124] This embodiment provides an elevator emergency operation device, comprising:

[0125] The data acquisition module is used to obtain the current floor of the elevator, the real-time load of the car, the passenger's departure floor, the destination floor, and the remaining real-time power of the elevator's energy storage device when receiving a new elevator boarding instruction.

[0126] The energy calculation module is used to predict the operating energy from the current floor to the passenger's departure floor based on the elevator's historical operating data and the real-time load of the car, and to predict the operating energy from the passenger's departure floor to the destination floor based on the elevator's historical operating data and the real-time load of the car.

[0127] The control decision module is used to obtain a first residual power by subtracting the remaining real-time power of the elevator's energy storage device from the operating energy from the current floor to the passenger's departure floor; if the first residual power is greater than the minimum standard power of the elevator drive, the control energy calculation module is used to predict the operating energy from the passenger's departure floor to the destination floor, otherwise the passenger is not allowed to take the elevator; the first residual power is subtracted from the operating energy from the passenger's departure floor to the destination floor to obtain a second residual power; if the second residual power is greater than the minimum standard power of the elevator drive, the passenger is allowed to take the elevator, otherwise the passenger is not allowed to take the elevator.

[0128] Specifically, the data acquisition module includes the destination floor dispatching system (obtaining the calling floor, destination floor and number of passengers), the car weighing system (collecting load in real time), the battery power detection module (monitoring the real-time remaining battery power SOC) and the elevator control system (obtaining information such as the current floor of the elevator).

[0129] The energy calculation module stores historical elevator operation data (such as energy conversion efficiency for different loads and floor height differences) and supports phased calculations: Phase 1: The operating energy / production capacity from the current floor to the elevator-calling floor (denoted as ΔE1, where power generation is negative and power consumption is positive). Phase 2: The operating energy / production capacity from the elevator-calling floor to the destination floor (denoted as ΔE2, where power generation is negative and power consumption is positive).

[0130] The control decision module determines whether to allow the passenger to board the elevator and controls the elevator operation based on the real-time calculation results of ΔE1, ΔE2, and SOC. If SOC-ΔE1 ≥ SOC1 and (SOC-ΔE1)-ΔE2 ≥ SOC1, the passenger is allowed to board the elevator; otherwise, the passenger is denied and prompted.

[0131] The energy calculation module and the control decision module are built into the power saving and power management control system EMS.

[0132] In other embodiments, a historical data learning unit is also included to dynamically optimize energy conversion efficiency parameters through machine learning algorithms to improve estimation accuracy.

[0133] The further functional description of each of the above modules and units is the same as that of the above corresponding embodiments and will not be repeated here.

[0134] The elevator emergency operation device in this embodiment is presented in the form of a functional unit, where the unit refers to an ASIC (Application Specific Integrated Circuit) circuit, a processor and memory that executes one or more software or fixed programs, and / or other devices that can provide the above functions.

[0135] The embodiment of the present invention also provides a computer device having the above Figure 5 The elevator emergency operation device shown.

[0136] See also Figure 6 , Figure 6 is a structural diagram of a computer device provided by an optional embodiment of the present invention, such as Figure 6 As shown, the computer device includes: one or more processors 10, memory 20, and interfaces for connecting various components, including high-speed interfaces and low-speed interfaces. Various components utilize different buses to communicate with each other and can be installed on a common mainboard or installed in other ways as needed. The processor can process the instructions executed in the computer device, including instructions stored in the memory or on the memory to display the graphical information of the GUI on an external input / output device (such as, a display device coupled to the interface). In some optional embodiments, if necessary, multiple processors and / or multiple buses can be used together with multiple memories and multiple memories. Equally, multiple computer devices can be connected, and each device provides part of the necessary operations (for example, as a server array, a group of blade servers, or a multi-processor system). Figure 6 A processor 10 is taken as an example.

[0137] The processor 10 may be a central processing unit, a network processor, or a combination thereof. The processor 10 may further include a hardware chip. The hardware chip may be an application-specific integrated circuit, a programmable logic device, or a combination thereof. The programmable logic device may be a complex programmable logic device, a field programmable gate array, a general purpose array logic, or any combination thereof.

[0138] The memory 20 stores instructions that can be executed by at least one processor 10, so as to enable at least one processor 10 to execute the method shown in the above embodiment.

[0139] The memory 20 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and application programs required for at least one function; the data storage area may store data created based on the use of the computer device, etc. In addition, the memory 20 may include a high-speed random access memory, and may also include a non-transient memory, such as at least one disk storage device, a flash memory device, or other non-transient solid-state storage device. In some optional embodiments, the memory 20 may optionally include a memory remotely located relative to the processor 10, and these remote memories may be connected to the computer device 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.

[0140] The memory 20 may include a volatile memory, such as a random access memory; the memory may also include a non-volatile memory, such as a flash memory, a hard disk or a solid-state drive; the memory 20 may also include a combination of the above types of memory.

[0141] The computer device further includes an input device 30 and an output device 40. The processor 10, the memory 20, the input device 30 and the output device 40 may be connected via a bus or other means. Figure 6 The bus connection is taken as an example.

[0142] The input device 30 can receive input digital or character information and generate key signal input related to user settings and function control of the computer device. Examples include a touch screen, keypad, mouse, trackpad, touchpad, pointing stick, one or more mouse buttons, trackball, joystick, etc. The output device 40 may include a display device, auxiliary lighting devices (e.g., LEDs), and tactile feedback devices (e.g., vibration motors). Such display devices include, but are not limited to, liquid crystal displays, light emitting diodes, monitors, and plasma displays. In some optional embodiments, the display device may be a touch screen.

[0143] The embodiment of the present invention also provides a computer-readable storage medium. The above-mentioned method according to the embodiment of the present invention can be implemented in hardware, firmware, or implemented as a computer code that can be recorded in a storage medium, or implemented as a computer code that is originally stored in a remote storage medium or a non-temporary machine-readable storage medium and downloaded through a network and will be stored in a local storage medium, so that the method described herein can be stored in such software processing on a storage medium using a general-purpose computer, a dedicated processor, or programmable or dedicated hardware. Among them, the storage medium can be a magnetic disk, an optical disk, a read-only storage memory, a random access memory, a flash memory, a hard disk or a solid-state drive, etc.; further, the storage medium can also include a combination of the above-mentioned types of memory. It can be understood that a computer, a processor, a microprocessor controller or programmable hardware includes a storage component that can store or receive software or computer code. When the software or computer code is accessed and executed by a computer, a processor or hardware, the method shown in the above embodiment is implemented.

[0144] A portion of the present invention may be applied as a computer program product, such as a computer program instruction, which, when executed by a computer, can call or provide the method and / or technical solution according to the present invention through the operation of the computer. Those skilled in the art should understand that the form in which the computer program instruction exists in a computer-readable medium includes, but is not limited to, a source file, an executable file, an installation package file, etc. Accordingly, the way in which the computer program instruction is executed by the computer includes, but is not limited to: the computer directly executes the instruction, or the computer compiles the instruction and then executes the corresponding compiled program, or the computer reads and executes the instruction, or the computer reads and installs the instruction and then executes the corresponding installed program. Here, the computer-readable medium may be any real-time computer-readable storage medium or communication medium accessible to the computer.

[0145] Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention. Such modifications and variations are all within the scope defined by the appended claims.

Claims

1. An elevator emergency operation method, characterized in that: include: After the mains power outage, determine whether a new elevator boarding instruction is received; If a new elevator boarding instruction is received, the current floor of the elevator, the real-time load of the car, the passenger's departure floor, and the destination floor are obtained; Based on the historical operation data of the elevator and the real-time load of the elevator car, the operating energy from the current floor to the passenger's departure floor is predicted; The first remaining power is obtained by subtracting the remaining real-time power of the energy storage device of the elevator from the current floor to the passenger's departure floor; If the first remaining power is greater than the minimum standard power required to drive the elevator, the passenger's running energy from the departure floor to the destination floor is predicted based on the historical operation data of the elevator and the real-time load of the elevator car. Otherwise, the passenger is not allowed to board the elevator. The second residual power is obtained by subtracting the first residual power from the passenger's running energy from the departure floor to the destination floor; If the second remaining power is greater than the minimum standard power required for the elevator to operate, the passenger is allowed to take the elevator; otherwise, the passenger is not allowed to take the elevator. Before predicting the operating energy from the current floor to the passenger's departure floor based on the elevator's historical operating data and the real-time load of the car, the method further includes: obtaining the remaining real-time power of the elevator's energy storage device and comparing it with the maximum single-trip operating consumption; if the remaining real-time power of the elevator's energy storage device is greater than the maximum single-trip operating consumption, allowing the passenger to board the elevator; otherwise, comparing the remaining real-time power of the elevator's energy storage device with the minimum standard power of the elevator drive; if the remaining real-time power of the elevator's energy storage device is less than the minimum standard power of the elevator drive, stopping at the nearest floor station; otherwise, predicting the operating energy from the current floor to the passenger's departure floor based on the elevator's historical operating data and the real-time load of the car; If taking the elevator is allowed, the elevator will respond to the new elevator instruction and run to the next stop floor; if taking the elevator is not allowed, the elevator will execute the registered elevator instruction and run to the next stop floor; before running to the next stop floor, it also includes: based on the historical operation data of the elevator and the real-time load of the car, predicting the operating energy from the current floor to the next stop floor; subtracting the remaining real-time power of the energy storage device of the current elevator from the operating energy from the current floor to the next stop floor to obtain a third remaining power; if the third remaining power is greater than the minimum standard power of the elevator drive, the elevator will run to the next stop floor, otherwise it will stop at the nearest floor station.

2. The elevator emergency operation method according to claim 1, characterized in that: The method of predicting the operating energy from the current floor to the passenger's departure floor based on the historical elevator operating data and the real-time load of the elevator car includes: Obtaining the first energy conversion efficiency corresponding to the real-time load of the elevator car and the floor difference between the current floor and the passenger's departure floor in the historical operation data of the elevator; The operating energy from the current floor to the passenger's departure floor is estimated according to the real-time load of the car, the floor difference from the current floor to the passenger's departure floor, the first energy conversion efficiency and the elevator rated parameters.

3. The elevator emergency operation method according to claim 1, characterized in that: The method of predicting the running energy from the passenger's departure floor to the destination floor based on the historical elevator operation data and the real-time load of the elevator car includes: Obtain the number of passengers corresponding to the new elevator boarding instruction; estimating a predicted car load based on the number of passengers and the real-time car load; Obtaining the second energy conversion efficiency corresponding to the predicted car load and the floor difference between the passenger's departure floor and destination floor in the historical operation data of the elevator; The running energy from the passenger's departure floor to the destination floor is estimated according to the predicted car load, the floor difference between the passenger's departure floor and the destination floor, the second energy conversion efficiency and the elevator rated parameters.

4. The elevator emergency operation method according to claim 1, characterized in that: The method of predicting the running energy from the current floor to the next landing floor based on the historical running data of the elevator and the real-time load of the elevator car includes: Obtain the third energy conversion efficiency corresponding to the real-time load of the elevator car and the floor difference between the current floor and the next stop in the historical operation data of the elevator; Estimate the running energy from the current floor to the next floor based on the real-time car load, the floor difference from the current floor to the next floor, the third energy conversion efficiency and the elevator rated parameters.

5. An elevator emergency operation system, characterized in that: include: The elevator includes an elevator control system and an elevator drive system. The elevator control system is connected to the weighing system and the destination floor dispatching system to receive elevator boarding instructions and obtain the current floor of the elevator, the real-time load of the car, the passenger's departure floor, and the destination floor. The elevator drive system is used to drive the elevator. a power-saving and emergency management device, comprising a power-saving and power management control system, a bidirectional DC / DC converter, and a battery, wherein the bidirectional DC / DC converter is connected to the elevator drive system, and the power-saving and power management control system is used to control the bidirectional DC / DC converter to drive the battery to supply power to the elevator; Wherein, the power saving and power management control system is communicatively connected to the elevator control system, and is used to execute the elevator emergency operation method according to any one of claims 1-4.

6. The elevator emergency operation system according to claim 5, characterized in that: The power saving and emergency management device further comprises an auxiliary power supply module, which is respectively connected to the battery and the elevator control system and is used to be controlled by the power saving and power management control system and to supply power to the elevator control system.

7. An elevator emergency operation device, characterized in that: include: The data acquisition module is used to obtain the current floor of the elevator, the real-time load of the car, the passenger's departure floor, the destination floor, and the remaining real-time power of the elevator's energy storage device when receiving a new elevator boarding instruction; An energy calculation module, configured to predict the operating energy from the current floor to the passenger's departure floor based on the elevator's historical operating data and the real-time load of the elevator car, and to predict the operating energy from the passenger's departure floor to the destination floor based on the elevator's historical operating data and the real-time load of the elevator car; The energy calculation module is further configured to obtain the remaining real-time power of the elevator's energy storage device and compare it with the maximum single-trip consumption value before predicting the operating energy from the current floor to the passenger's departure floor based on the elevator's historical operating data and the real-time load of the car; if the remaining real-time power of the elevator's energy storage device is greater than the maximum single-trip consumption value, then the passenger is allowed to board the elevator; otherwise, the remaining real-time power of the elevator's energy storage device is compared with the minimum standard power of the elevator drive; if the remaining real-time power of the elevator's energy storage device is less than the minimum standard power of the elevator drive, then the passenger stops at the nearest floor; otherwise, based on the elevator's historical operating data and the real-time load of the car, the operating energy from the current floor to the passenger's departure floor is predicted; The control decision module is configured to calculate the difference between the remaining real-time power of the elevator's energy storage device and the operating energy from the current floor to the passenger's departure floor to obtain a first remaining power; if the first remaining power is greater than the minimum standard power required for the elevator to operate, the control energy calculation module is configured to predict the operating energy required for the passenger from the departure floor to the destination floor; otherwise, the passenger is not allowed to board the elevator; and the difference between the first remaining power and the operating energy required for the passenger from the departure floor to the destination floor is configured to obtain a second remaining power; if the second remaining power is greater than the minimum standard power required for the elevator to operate, the passenger is allowed to board the elevator; otherwise, the passenger is not allowed to board the elevator; The control decision module is used to respond to the new elevator instruction and run to the next landing if the elevator is allowed to take the elevator; If taking the elevator is not allowed, the registered elevator instruction will be executed and the elevator will be driven to the next landing. Before running to the next landing, the method further includes: predicting the running energy from the current floor to the next landing based on the historical operation data of the elevator and the real-time load of the car; The remaining real-time power of the current elevator's energy storage device is subtracted from the operating energy from the current floor to the next landing to obtain a third remaining power; if the third remaining power is greater than the minimum standard power required for the elevator to operate, the elevator will run to the next landing; otherwise, it will stop at the nearest landing.

8. A computer device, characterized in that: include: The memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the elevator emergency operation method according to any one of claims 1 to 4 by executing the computer instructions.

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