Elevator emergency operation method, system and device

Abstract

The invention relates to the technical field of elevator emergency operation, and discloses an elevator emergency operation method, system and device, and the method comprises the steps: receiving a new elevator taking instruction, and predicting the operation energy from a current floor to a departure floor of passengers and the operation energy from the departure floor of the passengers to a target floor in stages based on the historical operation data of an elevator and the real-time load of a car; and whether elevator taking is allowed or not is judged based on the operation energy from the current floor to the departure floor of the passengers, the operation energy from the departure floor of the passengers to the target floor and the remaining real-time electric quantity of energy storage equipment of the elevator. The running energy of the elevator is dynamically estimated based on stages, the power generation working condition is recorded in real time, and more elevator taking instructions meeting the conditions are allowed. Before the elevator goes to the next stopping layer, the elevator weighing system is used for actually measuring and calculating the power consumption of power generation, the electric quantity of the battery is dynamically monitored, and the operation strategy is adjusted in real time, so that people trapping events caused by insufficient electric quantity are 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 charge while ensuring absolute safety for passengers. 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; Figure 2 is a flow chart of a subroutine for predicting energy consumption according to an embodiment of the present invention; 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; Figure 4 is a flow chart of a main program according to an embodiment of the present invention; Figure 5 is a structural block diagram of an elevator emergency operation system according to an embodiment of the present invention; Figure 6 Schematic diagram of the hardware structure of a computer device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0018] 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.

[0019] According to an embodiment of the present invention, an embodiment of an elevator emergency operation method is provided. It should be noted that the steps shown in the flowcharts 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 flowcharts, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0020] In this embodiment, an elevator emergency operation method is provided. Figure 1 Shown, including: Step S1: After the mains power outage, determine whether a new elevator boarding instruction is received.

[0021] Specifically, after the mains power outage, if a new elevator boarding instruction is received, the process proceeds to step S2; otherwise, the currently registered elevator boarding instruction continues to be executed, or the elevator is stopped.

[0022] For example, when a utility power outage occurs, the elevator control system immediately activates emergency power supply mode, switching to the energy storage device in the elevator energy storage system for power. At this point, the system enters command monitoring mode, monitoring in real time for new boarding commands via the elevator car's operating panel, the elevator call buttons on each floor, and the remote control terminal. The system continuously polls for command signals. If no new commands are detected within a preset time window, it remains in standby mode, executes the currently registered boarding command, or stops the elevator. Once a new command is detected, subsequent processes are immediately triggered to ensure a timely response to passenger needs.

[0023] Step S2: If a new elevator boarding instruction is received, the current floor where the elevator is located, the real-time load of the car, the passenger's departure floor, and the destination floor are obtained.

[0024] Specifically, once a new boarding instruction is confirmed, the elevator control system simultaneously activates multiple sensors and data acquisition modules. Position sensors installed in the elevator shaft (such as photoelectric sensors or magnetic grating sensors) accurately determine the elevator's current floor. A load cell at the bottom of the car collects and analyzes car load data in real time, accurate to the kilogram level, to ensure the accuracy of subsequent energy forecasts. Simultaneously, the system extracts the passenger's departure and destination floor information from the instruction input terminal. If the passenger enters the instruction from within the car, the system directly reads the data from the control panel. If the instruction is a floor call, the departure floor is determined based on the elevator's travel direction, ensuring the completeness and accuracy of the information acquired.

[0025] Step S3: 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 passenger's departure floor is predicted.

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] Specifically, after predicting the running energy required to travel from the passenger's departure floor to the destination floor, the elevator control system performs another power calculation. The first remaining power calculated in step S4 is subtracted from the predicted running energy required to travel from the passenger's departure floor to the destination floor. This subtraction yields the second remaining power. This value represents the final remaining power in the energy storage device after the elevator transports the passenger from the departure floor to the destination floor. Compared to the first remaining power, the second remaining power calculation is more critical in determining whether the elevator can successfully complete the entire journey and safely dock.

[0037] It's important to note that the difference between the first remaining power and the passenger's departure-to-destination running energy (i.e., the difference between the first remaining power and the passenger's departure-to-destination running energy) is calculated. This difference is signed; if the first remaining power is less than the passenger's departure-to-destination running energy, the difference is negative. Therefore, this step not only compares the first remaining power with the passenger's departure-to-destination running energy (by checking the sign of the result), but also calculates the excess value when the first remaining power exceeds the passenger's departure-to-destination running energy.

[0038] Step S7: If the second remaining power is greater than the minimum standard power for elevator driving, then taking the elevator is allowed; otherwise, taking the elevator is not allowed.

[0039] Specifically, the second remaining power is compared with the minimum standard power of the elevator drive. If the second remaining power is greater than the minimum standard power, it means that after completing the current elevator ride, the elevator still has enough power to maintain subsequent basic operations, such as docking at the destination floor, performing necessary equipment self-inspections, etc. At this time, the system will allow passengers to take the elevator, and the elevator will go to the departure floor where the passenger is located according to the predetermined procedure and perform the transportation task. On the contrary, if the second remaining power is less than or equal to the minimum standard power, it means that even if the elevator transports the passenger to the destination floor, it may face the risk of insufficient power and unable to ensure subsequent safe operation. In order to avoid this situation and ensure the safety of passengers and the normal operation of elevator equipment, the system will prohibit elevator rides and explain the reasons to passengers through the display screen in the car, voice prompts, etc., and display a sign prohibiting elevator rides on the call panel outside the elevator.

[0040] It should be noted that the minimum standard power required to drive the elevator is the minimum power required by the energy storage device to drive the elevator to the nearest leveling position and open the door after a mains power outage.

[0041] 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.

[0042] 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: 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.

[0043] The calculation formula for the operating energy from the current floor to the passenger's departure floor is:

[0044] 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.

[0045] 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.

[0046] Specifically, when a new elevator boarding instruction is issued, the system first needs to determine the corresponding number of passengers. This can usually be achieved with the help of a variety of technical means. For example, using infrared sensors or cameras installed at the elevator entrance, computer vision algorithms can be used to count the number of passengers entering the elevator. For example, target detection algorithms based on deep learning can accurately identify individual passengers and then count their number. For example, this is obtained by having passengers enter the number of passengers when calling the elevator on the elevator selector of the destination floor elevator dispatch system. After obtaining the number of passengers, the weight of the waiting passengers is calculated based on the average passenger weight. This is added to the current real-time load of the car to obtain the predicted load of the car when picking up the passengers from the departure floor to the destination floor. The average passenger weight can be preset as a standard weight for a single person, or it can be estimated based on the number of elevator passengers and the car load in the elevator's historical operation data.

[0047] Optionally, search criteria are set based on the predicted car load and floor height difference, and matching records are filtered from the historical data. Multiple energy conversion efficiency data are then obtained by calculating the ratio of actual energy consumption to theoretical energy consumption (calculated based on the elevator's rated parameters) in these records. Finally, a final second energy conversion efficiency is calculated using statistical methods such as averaging or weighted averaging (with weights assigned based on factors such as data timeliness and quality). This efficiency value reflects the actual energy conversion efficiency of the elevator during operation under specific load and floor height difference conditions and is a key parameter for accurately predicting operating energy.

[0048] The calculation formula for the running energy from the passenger's departure floor to the destination floor is:

[0049] Where ΔE2 is the running energy from the passenger's departure floor to the destination floor; H1 is the floor difference between the passenger's departure floor and the destination floor; M is the predicted car load; M0 is the weight difference between the car and the counterweight; η 2 is the second energy conversion efficiency.

[0050] In an actual application scenario, if a new elevator instruction is received, the energy consumption prediction subroutine is triggered. The specific flow chart of the program is as follows: Figure 2 Based on the current state of the elevator (such as load, floor, etc.), the passenger's registered floor information, and the battery power, the energy consumed to complete the transportation task of the new registration instruction is predicted.

[0051] Specifically, Figure 2In the elevator control system, upon receiving a new floor registration instruction, the elevator control system will immediately activate the remaining real-time power evaluation mechanism. Through a precise operating energy prediction algorithm, it will determine whether the remaining real-time power of the current energy storage device is sufficient to support the current elevator demand. If the evaluation result shows insufficient power, the system will immediately issue a "low power, unable to operate" prompt to the passenger and refuse to execute the elevator instruction; if the power meets the requirements, the instruction will be registered and the operation route will be planned. The specific processing flow is as follows: (1) Process start: When a passenger inputs an elevator request through the car operating panel, floor call button or hall selector, the elevator control system responds immediately and triggers the elevator request processing process.

[0052] (2) Obtaining registered floor information: The system reads the destination floor information registered by the passenger in real time, including the calling floor, destination floor, and the number of passengers calculated based on the load sensor data. By analyzing this data, the passenger's travel needs and destination information are clarified.

[0053] (3) Locating the current floor of the elevator: Using a high-precision magnetic grid sensor or absolute encoder installed in the elevator shaft, or obtaining floor information from the elevator control system, the current position of the elevator is obtained in real time, providing basic data for subsequent path planning and operation energy calculation.

[0054] (4) Collecting car load data: The system uses a pressure sensor array at the bottom of the car to accurately measure the real-time load inside the car. The system filters and calibrates the collected load data to ensure its accuracy and reliability, providing key parameters for operating energy estimation.

[0055] (5) Estimation of the operating energy ΔE1 from the current floor to the elevator floor: Based on the real-time load of the car, the current floor of the car, the floor called by the passenger, and other information, combined with the operating energy records in the historical operation database, an operating energy prediction model constructed using a machine learning algorithm is used to calculate the first energy conversion efficiency under the corresponding working conditions, and accurately estimate the energy consumed / generated by the elevator from the current position to the elevator floor. This model fully considers the operating energy characteristics of the different stages of the elevator operation, such as starting, acceleration, constant speed, and deceleration, as well as the impact of load changes on operating energy.

[0056] (6) First remaining power evaluation: The estimated operating energy ΔE1 is compared with the remaining real-time power of the energy storage device, and compared with the pre-set safety power threshold SOC1 (i.e., the minimum standard power for elevator drive).

[0057] 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.

[0058] 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.

[0059] (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.

[0060] (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.

[0061] (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).

[0062] 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.

[0063] 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.

[0064] 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: (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.

[0065] 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.

[0066] (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.

[0067] 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.

[0068] 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.

[0069] (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.

[0070] 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.

[0071] Specifically, if the remaining real-time power level is greater than or equal to the minimum standard power level required to operate the elevator, it indicates that the elevator can operate from the current floor to the passenger departure floor. Based on the elevator's historical operating data and the real-time car load, the system uses established energy prediction methods (such as the aforementioned steps of obtaining the number of passengers, estimating the predicted car load, and determining the secondary energy conversion efficiency) to accurately predict the energy required to operate from the current floor to the passenger departure floor. This prediction provides an important basis for elevator energy management, scheduling optimization, and subsequent power monitoring, helping to improve the energy efficiency and safety of elevator operation.

[0072] In some optional embodiments, the elevator emergency operation method further includes: if riding is allowed, responding to a new elevator riding instruction and running to the next landing floor; if riding is not allowed, executing a registered elevator riding instruction and running to the next landing floor.

[0073] In some optional embodiments, before running to the next stop floor, the elevator emergency operation method also includes starting a real-time calculation subroutine, specifically including: predicting the operating energy from the current floor to the next stop floor based on the elevator's historical operating data and the real-time load of the car; subtracting the remaining real-time power of the current elevator's energy storage device 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.

[0074] Similarly, the third remaining power here has a positive and negative sign. When the third remaining power is a negative number, it must be less than the minimum standard power for elevator driving.

[0075] Specifically, if the third remaining battery level is less than or equal to the minimum standard level, an emergency stop procedure is immediately initiated to ensure passenger safety and normal equipment operation. For example, the nearest safe landing is calculated, taking into account factors such as the elevator's current location, direction of travel, and the usage of each landing. The nearest, unaffected landing is selected as the landing point. Then, by controlling the traction motor's inverter, the elevator's operating speed is adjusted, employing a rapid and smooth deceleration strategy to ensure the elevator safely stops at the nearest landing in the shortest possible time.

[0076] Optionally, during an emergency stop, the elevator's safety and protection systems fully activate. The cabin's emergency lighting and ventilation systems automatically activate to ensure basic passenger comfort and safety during the stop. Emergency communication devices (such as intercoms and video call equipment) automatically connect to the property management center or emergency rescue platform, making it easy for passengers to communicate with the outside world. Simultaneously, the elevator control system sends detailed emergency stop alarm information to the property management center and maintenance personnel, including information such as the elevator's location, remaining battery power, and the cause of the emergency, enabling staff to respond and address the situation promptly.

[0077] 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.

[0078] 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 historical data, the actual operating energy ΔE_real is calculated as follows:

[0079] 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.

[0080] 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.

[0081] In an actual application scenario, the main flow chart of this embodiment is as follows: Figure 4 As shown, the details are as follows: (1) Start.

[0082] The entire elevator operation process starts and enters the initial status detection stage.

[0083] (2) Check the battery level.

[0084] 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.

[0085] (3) Determine whether the consumption is lower than the maximum value of a single trip.

[0086] If the battery power is higher than or equal to the maximum power value that may be consumed during a single trip, it indicates that the battery power can surely cover the operating energy required by the new elevator call instruction. The elevator can normally respond to the call signal and execute the operating task, and the process transfers to "Run to the next stop floor". When the battery power is lower than the maximum value consumed during a single trip, that is, SOC < SOC1 + SOC2, it means that the battery power may not be sufficient to support the elevator to complete a full operating cycle. At this time, enter the next judgment. Among them, SOC1 is the minimum standard power of the elevator drive, SOC2 is the maximum power consumed by the elevator from the bottom floor to the top floor, and SOC is the remaining real-time power of the energy storage device.

[0087] (4)Judge whether it can continue to run.

[0088] Evaluate the current overall state of the elevator and the battery power situation, and judge whether the elevator still has the conditions to continue running, such as whether there are other energy replenishment sources (such as elevator down-generation, etc.) to maintain basic operation.

[0089] If SOC < SOC1, it means that it cannot continue to run, and the process ends, and the elevator stops running to prevent entrapment due to power exhaustion. If it can continue to run, continue with the next operation.

[0090] (5)Detect the floor registration signal.

[0091] Check whether there is a new floor registration signal, that is, whether there is a passenger sending an elevator call demand through the destination floor elevator allocation system. If there is a registered instruction, it means that the elevator needs to continue according to the original operation plan, and the process transfers to "Run to the next stop floor". If there is a new floor registration signal, further judge whether there is a registered instruction. If there is no new registration or no registered instruction, it means that there is no running request and demand.

[0092] (6)If there is a new registered instruction, confirm that a new passenger registration instruction is received, and it is necessary to estimate and evaluate the energy consumption of this transportation task.

[0093] (7)Predict the energy consumption subroutine.

[0094] Start a dedicated energy prediction program, and predict the energy that may be consumed to complete the transportation task of this new registered instruction according to the current state of the elevator (such as load, floor where it is located, etc.), the registered floor information of the passengers, and the battery power, etc.

[0095] (8)Judge whether the consumed power exceeds the remaining real-time power of the battery.

[0096] 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."

[0097] (9) Run to the next stop.

[0098] 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.

[0099] (10) Calculate the energy consumption of the next docking layer according to the actual situation.

[0100] 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.

[0101] (11) Determine whether the power consumption exceeds the remaining real-time power of the battery.

[0102] 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.

[0103] This embodiment provides an elevator emergency operation system, such as Figure 5 Shown, including: 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.

[0104] 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.

[0105] 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.

[0106] 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.

[0107] 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.

[0108] 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.

[0109] 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.

[0110] This embodiment provides an elevator emergency operation device, comprising: 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.

[0111] 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.

[0112] 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.

[0113] 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).

[0114] 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).

[0115] 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.

[0116] The energy calculation module and the control decision module are built into the power saving and power management control system EMS.

[0117] 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.

[0118] 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.

[0119] 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.

[0120] The embodiment of the present invention also provides a computer device having the above Figure 5 The elevator emergency operation device shown.

[0121] 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.

[0122] 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.

[0123] 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.

[0124] 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.

[0125] 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.

[0126] 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.

[0127] 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.

[0128] 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.

[0129] 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.

[0130] 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 for elevator driving, the user is allowed to take the elevator; otherwise, the user is not allowed to take the elevator.

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: Before predicting the running energy from the current floor to the passenger's departure floor based on the historical elevator running data and the real-time load of the elevator car, the method further includes: 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; If the remaining real-time power of the elevator's energy storage device is greater than the maximum single-trip consumption, the elevator is allowed to board. 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 required to drive the elevator, 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.

5. The elevator emergency operation method according to claim 4, characterized in that: Also includes: If the elevator is allowed, it will respond to the new elevator instruction and run to the next landing; 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 docking level, it also includes: 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 next stop is predicted; The third remaining power is obtained by subtracting the remaining real-time power of the energy storage device of the current elevator from the running energy from the current floor to the next landing floor; If the third remaining power is greater than the minimum standard power of the elevator drive, it will run to the next stop floor, otherwise it will stop at the nearest floor station.

6. The elevator emergency operation method according to claim 5, 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.

7. 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 1-6.

8. The elevator emergency operation system according to claim 7, 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.

9. 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 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.

10. 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 6 by executing the computer instructions.

Images