A method and system for cooperative control and maintenance of an elevator emergency power supply device

Abstract

The application discloses a kind of cooperative control and maintenance method and system of elevator power failure emergency device, belong to elevator control and safety technical field.The method includes: monitoring the operating state of elevator, and obtaining the device state information reported by power failure emergency device;Based on information, determine whether to meet the conditions of starting maintenance test;If meet, then by elevator control system generates and sends maintenance control instruction to power failure emergency device, control it under the premise of keeping main power connection switches to the test mode powered by emergency battery;Control elevator to execute predetermined operating program;When meeting test termination condition, control device exits test and restores main power supply;Finally output test report.The application realizes the automatic, fine maintenance of emergency power supply through the deep cooperation of elevator control system and power failure emergency device, can effectively prolong battery life, verify function reliability, and support manual trigger, improve the safety management level and maintenance efficiency of elevator.

Description

Technical Field

[0001] This invention relates to the field of elevator control and safety technology, specifically to a collaborative control and maintenance method and system for an elevator power outage emergency device. Background Technology

[0002] Elevator power outage emergency devices are crucial safety backup systems for elevators, providing emergency power to drive the elevator for emergency leveling and evacuation when the main power supply fails. Currently, this device typically operates as an independent subsystem, with the elevator control system lacking effective awareness of its internal status, resulting in a long-term information silo between the two. This architecture leads to two prominent problems: first, the emergency battery remains in a float-charge state for extended periods, lacking necessary maintenance discharge, leading to decreased activity of internal chemical substances, accelerated capacity decay, and shortened lifespan; second, the device's functional reliability relies entirely on periodic manual testing, failing to achieve routine automated verification, and posing a risk of functional failure in real power outage scenarios.

[0003] Some existing improvement solutions attempt to introduce automatic testing functions, but most rely on the emergency device itself based on a timer or use a simulated power outage method that directly cuts off the main power supply. These solutions fail to achieve deep integration with the elevator control system and have significant shortcomings: on the one hand, they cannot intelligently select idle periods that do not affect normal elevator service for testing, which may interfere with passengers' normal travel; on the other hand, they cannot flexibly adjust the testing strategy according to the actual health status of the battery, which poses a risk of insufficient testing or over-discharge; in addition, the testing process lacks effective prompts for elevator passengers, which can easily lead to misunderstandings or safety hazards.

[0004] Therefore, how to provide a collaborative control and maintenance method and system for elevator power outage emergency devices is a technical problem that needs to be improved. Summary of the Invention

[0005] The purpose of this invention is to provide a collaborative control and maintenance method and system for an elevator power outage emergency device. Through deep collaboration between the elevator control system and the power outage emergency device, automated and refined maintenance of the emergency power supply is achieved, which can effectively extend battery life, verify functional reliability, and support manual triggering, thereby improving the safety management level and maintenance efficiency of the elevator.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A method for the coordinated control and maintenance of an elevator power outage emergency device, comprising: Step 1: Monitor the elevator's operating status and obtain the device status information reported by the power outage emergency device through the communication link; Step 2: Based on the elevator's operating status and device status information, determine whether the conditions for initiating maintenance testing are met; if so, the elevator control system generates maintenance control commands. Step 3: The elevator control system sends a maintenance control command to the emergency power outage device, controlling the emergency power outage device to switch to a test mode in which the emergency battery supplies power to the elevator load while maintaining the main power supply connection; Step 4: In test mode, control the elevator to execute the predetermined operating procedure; Step 5: When the test termination conditions are met, control the power outage emergency device to exit the test mode and restore the main power supply; Step 6: Generate and output the report for this maintenance test.

[0007] Furthermore, in step 1, the device status information includes the remaining power and the health status of the battery.

[0008] Furthermore, in step 2, based on the elevator's operating status and device status information, it is determined whether the conditions for initiating maintenance testing are met, specifically: If the elevator is in an idle and safe state, and the remaining power of the emergency power outage device is higher than the preset start threshold, then the conditions for starting the maintenance test are met; otherwise, the conditions for starting the maintenance test are not met.

[0009] Furthermore, the elevator is in an idle and safe state when there is no one in the elevator car, no call signal waiting to be answered, and it is stopped at the designated position for a preset time period.

[0010] Furthermore, step 2 also includes: In response to the received manual test command, the elevator control system skips the judgment of maintenance test conditions and directly generates maintenance control commands.

[0011] Furthermore, in step 5, the test termination condition is: When the parameters of the battery monitored in real time reach the target discharge parameters, the test is terminated. The target discharge parameters are determined based on the device status information.

[0012] The present invention also provides a collaborative control and maintenance system for an elevator power outage emergency device, which is applied to the above-mentioned collaborative control and maintenance method for an elevator power outage emergency device, including: an elevator control system and a power outage emergency device, wherein the elevator control system is connected to the power outage emergency device via a data communication link; The power outage emergency device is used to report device status information to the elevator control system and respond to maintenance control commands from the elevator control system. While maintaining the main power connection, it switches to a test mode in which the emergency battery supplies power to the elevator load, and responds to an exit command to restore the main power supply. The elevator control system is used to monitor the elevator's operating status and obtain the device status information reported by the power outage emergency device through the communication link. Based on the elevator's operating status and the device status information, it determines whether the conditions for starting the maintenance test are met. When the conditions are met, it generates and sends a maintenance control command to the power outage emergency device. In test mode, it controls the elevator to execute a predetermined operating program. When the test termination conditions are met, it controls the power outage emergency device to exit the test mode and restore the main power supply, and generates and outputs a report of this maintenance test.

[0013] Furthermore, the elevator control system is also configured to: in response to a received manual test command, skip the judgment of maintenance test conditions and directly generate a maintenance control command.

[0014] In summary, the present invention has at least one of the following beneficial technical effects: 1. System Collaborative Intelligence: A data communication link is established between the elevator control system and the emergency power outage device, enabling the elevator control system to obtain real-time internal status information of the device. This achieves cross-system information fusion and collaborative decision-making, thereby improving the overall intelligence level of the elevator system.

[0015] 2. Scientific maintenance decision-making: The elevator control system comprehensively utilizes its own knowledge of elevator operating conditions and battery status information obtained from the device to intelligently determine when to start maintenance tests, ensuring that tests are only conducted when the elevator is idle, safe, and the battery status allows, thus avoiding interference with operation caused by blind testing.

[0016] 3. Enhanced safety during testing: The elevator control system controls power switching via communication commands, replacing the traditional simulation method of cutting off the main power supply, resulting in higher electrical safety. During the test, the elevator operates at a controlled low speed and is not open to the public. Visual and auditory prompts are provided through the human-machine interface, eliminating safety hazards and human misjudgment.

[0017] 4. Refined Battery Management: The elevator control system can dynamically determine target discharge parameters and continuously monitor the discharge process based on the acquired real-time battery data, and execute customized discharge maintenance strategies to effectively delay the capacity decay of the battery caused by long-term float charging and extend the battery life.

[0018] 5. Efficient Operation and Maintenance Management: The fully automated testing process and report generation and uploading replace manual periodic inspections, reducing labor costs, improving maintenance efficiency, and shifting the maintenance of emergency devices from passive response to proactive prevention. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the method flow of the present invention. Figure 2 This is a schematic diagram of the system structure of the present invention; Figure 3 The flowchart for the logical judgment of the trigger conditions for intelligent maintenance. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. Furthermore, the technical features involved in the various embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0021] This invention provides a method for the coordinated control and maintenance of an elevator power outage emergency device, the logic block diagram of which is shown below. Figure 1 As shown, the specific steps include: Step 1: Monitor the elevator's operating status and obtain the device status information reported by the power outage emergency device through the communication link; Step 2: Based on the elevator's operating status and device status information, determine whether the conditions for initiating maintenance testing are met; if so, the elevator control system generates maintenance control commands. Step 3: The elevator control system sends a maintenance control command to the power outage emergency device, controlling the power outage emergency device to switch to the test mode in which the emergency battery supplies power to the elevator load while maintaining the main power supply (mains power is used in this invention); Step 4: In test mode, control the elevator to execute the predetermined operating procedure; Step 5: When the test termination conditions are met, control the power outage emergency device to exit the test mode and restore the main power supply; Step 6: Generate and output the report for this maintenance test.

[0022] In step 1, the device status information includes, but is not limited to, remaining charge (SOC) and battery health status (SOH).

[0023] In step 2, based on the elevator's operating status and device status information, it is determined whether the conditions for starting the maintenance test are met, specifically: If the elevator is in an idle and safe state, and the remaining power of the emergency power outage device is higher than the preset start threshold, then the conditions for starting the maintenance test are met; otherwise, the conditions for starting the maintenance test are not met.

[0024] An elevator is considered to be in an idle and safe state when there is no one in the elevator car, no pending call signals, and the elevator remains stopped at a designated location for a preset time period.

[0025] Step 2 also includes: In response to the received manual test command, the elevator control system skips the judgment of maintenance test conditions and directly generates maintenance control commands.

[0026] It should also be noted that in steps 3 and 4, visual prompts of the test status are provided through the elevator's human-machine interface, and auditory prompts of the test status are provided through voice announcements.

[0027] In step 5, the test termination condition is: When the parameters of the battery monitored in real time reach the target discharge parameters, the test is terminated. The target discharge parameters are determined based on the device status information. The target discharge parameters include the target remaining charge and the target discharge depth after discharge. For example, when the test is started, the remaining charge of the emergency power outage device is required to be higher than the preset start threshold (for example, 90%). The test ends when the target remaining charge is 40%, at which point the target discharge depth is 50%. When the remaining charge of the battery monitored in real time reaches the target remaining charge, the test is terminated.

[0028] In step 6, generate and output the report for this maintenance test, specifically as follows: It should be noted that a successful test is defined as the elevator reaching the designated floor without any malfunctions occurring during the test. Specifically, if no power outage emergency device malfunctions during the test, it proves the device is functional; reaching the designated floor indicates the battery capacity is accurate and sufficient for rescue operations.

[0029] The purpose of a test report is to record the testing process.

[0030] like Figure 2 As shown, the present invention also provides a collaborative control and maintenance system for an elevator power outage emergency device, which is applied to the above-mentioned collaborative control and maintenance method for an elevator power outage emergency device. The system includes: an elevator control system and a power outage emergency device, wherein the elevator control system is connected to the power outage emergency device via a data communication link. The power outage emergency device is used to report device status information to the elevator control system and respond to maintenance control commands from the elevator control system. While maintaining the main power connection, it switches to a test mode in which the emergency battery supplies power to the elevator load, and responds to an exit command to restore the main power supply. The elevator control system is used to monitor the elevator's operating status and obtain the device status information reported by the power outage emergency device through the communication link. Based on the elevator's operating status and the device status information, it determines whether the conditions for starting the maintenance test are met. When the conditions are met, it generates and sends a maintenance control command to the power outage emergency device. In test mode, it controls the elevator to execute a predetermined operating program. When the test termination conditions are met, it controls the power outage emergency device to exit the test mode and restore the main power supply, and generates and outputs a report of this maintenance test.

[0031] The elevator control system is also configured to: in response to a received manual test command, skip the judgment of maintenance test conditions and directly generate a maintenance control command.

[0032] The present invention also provides an embodiment for a detailed description of the above-described method and system, as follows: like Figure 2 As shown, this invention adds a two-way communication interface to the original elevator control system and power outage emergency device, and the elevator control system operates the method of this invention.

[0033] The elevator control system communicates with the emergency power outage device via an RS485 bus. During normal operation, the elevator control system periodically (e.g., every minute) queries the device status and obtains data packets containing information such as "Battery SOC: 95%", "Battery SOH: 92%", and "Device self-test: Normal".

[0034] This embodiment provides two specific scenarios for detailed explanation: Scenario 1 (Automatically Triggered): such as Figure 1 and Figure 3 As shown, late one night, the elevator control system detected that the elevator had stopped at the base station and had not received any calls for 20 minutes, determining it to be in a "safe idle state." At this time, it checked the recently acquired emergency device status: SOC was 95% (above the activation threshold of 90%), self-test was normal, and more than 28 days had passed since the last automatic test. All automatic triggering conditions were met.

[0035] The elevator control system first displays "Emergency equipment self-check in progress, please do not ride" on the car's display screen, accompanied by a voice prompt. Then, it sends a specifically coded control command to the power outage emergency device. After parsing the command, the power outage emergency device's controller activates its internal power switching circuit, seamlessly switching the output power from the mains bypass to the battery inverter output. The elevator control system detects the power switch and immediately initiates a low-speed operation subroutine: controlling the elevator to run back and forth between the ground floor and top floor at a power outage emergency speed (e.g., 0.2 m / s), without opening the doors upon arrival at each floor.

[0036] During the test, the elevator control system continuously acquired real-time State of Charge (SOC) and State of Health (SOH) data from the device. The system set the target remaining battery power (SOC_target) for this maintenance to 40%. When the real-time SOC dropped to 40%, the elevator control system immediately sent a "exit test" command to the device. The device switched back to mains power, and the battery began charging. The elevator returned to normal standby mode. Finally, the elevator control system generated a log containing information such as test time, start / end SOC, and whether the operation was successful, and uploaded it to the cloud platform via the IoT module.

[0037] Scenario 2 (Manual Trigger): Maintenance personnel arrive on site, access the maintenance menu via password verification on the elevator server, select "Emergency Power Function Test," and confirm. Upon receiving this manual test command, the elevator control system immediately displays "Maintenance Test in Progress" on the floor display, skips the automatic trigger condition judgment, and directly executes subsequent command sending, power switching, elevator low-speed operation, and discharge monitoring procedures. This provides maintenance personnel with a direct verification method, facilitating the simultaneous testing of emergency devices during routine maintenance.

[0038] Embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0039] This invention is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0040] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1The function specified in one or more boxes.

[0041] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0042] Contents not described in detail in this specification are prior art known to those skilled in the art. It is hereby indicated that the above description is intended to help those skilled in the art understand this invention, but does not limit the scope of protection of this invention. Any equivalent substitutions, modifications, improvements, or simplifications of the above descriptions that do not depart from the essential content of this invention fall within the scope of protection of this invention.

Claims

1. A method for coordinated control and maintenance of an elevator power outage emergency device, characterized in that, include: Step 1: Monitor the elevator's operating status and obtain the device status information reported by the power outage emergency device through the communication link; Step 2: Based on the elevator's operating status and device status information, determine whether the conditions for starting the maintenance test are met. If the elevator is in an idle and safe state, and the remaining power of the emergency power outage device is higher than the preset start threshold, then the conditions for starting the maintenance test are met. Otherwise, the conditions for starting the maintenance test are not met. If the conditions are met, the elevator control system generates a maintenance control command. The elevator being in an idle and safe state means that there is no one in the elevator car, no pending call signals, and the elevator is stopped at the designated position for a preset time period. Step 3: The elevator control system sends a maintenance control command to the emergency power outage device, controlling the emergency power outage device to switch to a test mode in which the emergency battery supplies power to the elevator load while maintaining the main power supply connection; Step 4: In test mode, control the elevator to execute the predetermined operating procedure; Step 5: When the test termination condition is met, control the power outage emergency device to exit the test mode and restore the main power supply. The test termination condition is: when the real-time monitored battery parameters reach the target discharge parameters, the test is terminated. The target discharge parameters are determined based on the device status information. Step 6: Generate and output the report for this maintenance test.

2. The method for coordinated control and maintenance of an elevator power outage emergency device according to claim 1, characterized in that, In step 1, the device status information includes the remaining power and the health status of the battery.

3. The method for coordinated control and maintenance of an elevator power outage emergency device according to claim 1, characterized in that, Step 2 also includes: In response to the received manual test command, the elevator control system skips the judgment of maintenance test conditions and directly generates maintenance control commands.

4. A collaborative control and maintenance system for an elevator power outage emergency device, applied to the collaborative control and maintenance method for an elevator power outage emergency device as described in any one of claims 1-3, characterized in that, include: An elevator control system and a power outage emergency device, wherein the elevator control system is connected to the power outage emergency device via a data communication link; The power outage emergency device is used to report device status information to the elevator control system and respond to maintenance control commands from the elevator control system. While maintaining the main power connection, it switches to a test mode in which the emergency battery supplies power to the elevator load, and responds to an exit command to restore the main power supply. The elevator control system is used to monitor the elevator's operating status and obtain the device status information reported by the power outage emergency device through the communication link. Based on the elevator's operating status and the device status information, it determines whether the conditions for starting the maintenance test are met. When the conditions are met, it generates and sends a maintenance control command to the power outage emergency device. In test mode, it controls the elevator to execute a predetermined operating program. When the test termination conditions are met, it controls the power outage emergency device to exit the test mode and restore the main power supply, and generates and outputs a report of this maintenance test.

5. The collaborative control and maintenance system for an elevator power outage emergency device according to claim 4, characterized in that, The elevator control system is also configured to: in response to a received manual test command, skip the judgment of maintenance test conditions and directly generate a maintenance control command.

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