Hierarchical load priority outdoor cabinet power storage energy management method and system

Abstract

The application belongs to the technical field of cabinet power supply management, and discloses an outdoor cabinet power supply and storage energy management method with hierarchical load priority: a controller prestores a load priority list, divides the load into three levels of high, medium and low, and each level corresponds to an independent circuit; real-time monitoring of mains and UPS power; when the mains are powered off and the UPS power is lower than the first threshold, the low importance load is cut off; lower than the second threshold, cut off the medium importance load; only the high importance load is continuously powered by the UPS until the power is exhausted or the mains are restored. The application cooperatively designs three-level load priority division and two-level power threshold to build an orderly and progressive intelligent load shedding strategy. In the extreme scenario of outdoor cabinet power failure and limited UPS power, the controller prioritizes the high importance list to ensure continuous power supply for core communication equipment, security monitoring equipment and other high importance loads.

Description

Technical Field

[0001] This invention belongs to the field of cabinet power supply management technology, specifically a method and system for managing the power supply and storage of outdoor cabinets based on hierarchical load priority. Background Technology

[0002] With the rapid development of 5G communication networks, the Internet of Things and edge computing, the number of outdoor cabinets (such as communication base station cabinets, intelligent traffic control cabinets, environmental monitoring cabinets, etc.) has increased dramatically. These cabinets are usually installed in remote areas or outdoor environments where the mains power supply is unstable and they frequently face the risk of power outages.

[0003] Currently, outdoor server racks commonly use UPS (Uninterruptible Power Supply) as backup power to provide temporary power to the equipment inside the rack when the mains power fails. However, existing UPS power management solutions have the following shortcomings: First, when the UPS power is limited, all loads share the remaining power equally without prioritization, resulting in critical communication equipment and non-critical auxiliary equipment running out of power simultaneously. Second, existing solutions typically only suddenly disconnect all loads when the UPS power is extremely low, lacking a tiered and orderly load shedding mechanism, which fails to maximize the battery life of critical equipment. Third, the load shedding process lacks detailed event logging and remote reporting functions, making it difficult for maintenance personnel to promptly grasp the power supply status of the rack and respond effectively.

[0004] Therefore, there is an urgent need for a power supply and storage management method and system that can hierarchically manage the loads in outdoor cabinets and intelligently switch loads according to priority, so as to maximize the power supply time of critical loads under limited battery capacity and improve the overall power supply guarantee capability of outdoor cabinets. Summary of the Invention

[0005] The purpose of this invention is to provide a method and system for managing the power supply and storage of outdoor cabinets with hierarchical load priority, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a method for managing outdoor cabinet power supply and storage based on hierarchical load priority, comprising the following steps: Step 1: Pre-store the load priority list in the controller and divide the load in the outdoor cabinet into three priority levels: high importance load, medium importance load and low importance load. Each level corresponds to at least one independently controllable power supply circuit. Step 2: Monitor the mains power input status in real time through the voltage detection module, collect the remaining power information of the UPS in real time through the power detection module, and transmit the mains power input status and remaining power information to the controller; Step 3: The controller determines whether the mains power is interrupted. If it detects that the mains power is normal, it maintains normal power supply to all loads; if it detects that the mains power is interrupted, it proceeds to step 4. Step 4: The controller determines whether the remaining power of the UPS is lower than the first preset threshold. If it is lower than the first preset threshold, the controller will cut off the power supply circuits corresponding to the low-importance loads in order of priority from low to high, and then proceed to Step 5. Step 5: The controller determines whether the remaining power of the UPS is lower than the second preset threshold. If it is lower than the second preset threshold, the power supply circuit corresponding to the medium-importance load is cut off, and the process proceeds to Step 6. Step 6: Only keep the high-critical loads continuously powered by the UPS until the UPS runs out of power and shuts down automatically, or until the mains power is restored and all loads are reconnected. The controller records the timestamp of the load shedding event, the priority level of the disconnected load, and the remaining power of the UPS at that time each time it performs a load shedding operation, and stores the load shedding event in the local memory or uploads it to the remote monitoring platform through the communication module.

[0007] Preferably, the load priority list in step one is divided based on at least one of the following: the criticality of the devices connected to the load, the rated power of the load, the type of service to which the load belongs, and user-defined configuration parameters; the load priority list can be dynamically adjusted through a local configuration interface or a remote management platform.

[0008] Preferably, the power detection module in step two includes a voltage sensor and a current sensor. The power detection module calculates the real-time remaining power of the UPS by sampling the voltage and current at the UPS output terminal. The remaining power is expressed as a percentage. The first preset threshold is 20% to 40% of the total UPS capacity, and the second preset threshold is 10% to 20% of the total UPS capacity.

[0009] Preferably, step four, which involves sequentially cutting off the power supply circuits of low-importance loads, specifically includes: when a low-importance load contains multiple independent loads, the controller sequentially and delays cutting off the power supply circuits of each low-importance load according to a preset sub-priority order, with a preset delay time between two adjacent cutting-off operations to avoid instantaneous current surges.

[0010] Preferably, between steps five and six, the method further includes: when the remaining power of the UPS is lower than the second preset threshold, the controller sends a power warning signal to the remote monitoring platform and activates the local audible and visual alarm device before disconnecting the medium-critical load, prompting maintenance personnel to handle the situation promptly.

[0011] Preferably, step six, which involves keeping only the high-importance loads continuously powered by the UPS, further includes: the controller monitoring the total power consumption of the high-importance loads in real time, and when the total power of the high-importance loads exceeds a preset proportion of the UPS's rated output power, selectively disconnecting the high-importance loads according to sub-priority.

[0012] A tiered load-priority outdoor rack-mounted energy storage management system includes: The controller has a pre-stored load priority list, which is used to divide the loads in the outdoor cabinet into three priority levels: high importance loads, medium importance loads, and low importance loads. A voltage detection module, connected to the mains input terminal, is used to monitor the mains input voltage status in real time and transmit the detection results to the controller; A power detection module, connected to the UPS output, is used to collect the remaining power information of the UPS in real time and transmit the detection results to the controller. Multiple independently controllable power supply circuits, each power supply circuit corresponding to a load of a priority level, and each power supply circuit is controlled by the switch of the controller; The local storage, connected to the controller, is used to record the timestamp of each load shedding event, the priority level of the disconnected load, and the remaining power of the UPS at that time. A communication module, connected to the controller, is used to upload the load-switching event to a remote monitoring platform; The controller is configured to: when a mains power failure is detected and the remaining power of the UPS is lower than a first preset threshold, sequentially cut off the power supply circuits corresponding to low-importance loads; when the remaining power of the UPS is lower than a second preset threshold, cut off the power supply circuits corresponding to medium-importance loads; and only allow high-importance loads to be continuously powered by the UPS.

[0013] Preferably, the controller is also connected to a local configuration interface, which allows maintenance personnel to modify the load priority list, adjust the values ​​of the first preset threshold and the second preset threshold, and view the load shedding event log on-site.

[0014] Preferably, the system further includes an environmental monitoring module, which is used to collect temperature, humidity and smoke concentration information inside the outdoor cabinet and transmit the temperature, humidity and smoke concentration information to the controller; when the controller determines that the ambient temperature exceeds the preset safe operating range, it prioritizes cutting off non-temperature-controlled loads to reduce the overall power consumption.

[0015] The beneficial effects of this invention are as follows: 1. This invention constructs an orderly and gradual intelligent load shedding strategy through a three-level load priority division and a two-level power threshold collaborative design. In extreme scenarios where outdoor cabinets encounter mains power outages and UPS power is limited, the controller prioritizes ensuring continuous power supply to high-importance loads such as core communication equipment and security monitoring equipment based on a preset list of high, medium, and low importance, fundamentally and significantly extending the power outage endurance time of critical services. At the same time, by using a graded mechanism of cutting off low-importance loads with the first threshold and cutting off medium-importance loads with the second threshold, the load is gradually stripped away, effectively avoiding the instantaneous business interruption caused by a one-time full-load power outage in traditional solutions, and greatly improving the smoothness of the power outage protection process and the overall reliability of the system operation.

[0016] 2. This invention establishes a full lifecycle management mechanism for load shedding events. Each load shedding operation is recorded in detail by the controller and can be remotely reported to the operation and maintenance platform, enabling maintenance personnel to grasp the power supply status of the cabinet in real time, accurately trace the cause of power outage events, and continuously optimize load configuration strategies based on historical data, effectively reducing blind spots in operation and maintenance and the cost of manual inspection.

[0017] 3. This invention supports flexible and dynamic adjustment of the load priority list. Users can add, delete, or modify the importance level classification of loads at any time according to actual deployment needs, and the strategy can be reconstructed without replacing hardware. This feature enables the system to adapt to the differentiated power supply guarantee requirements of various outdoor application scenarios such as communication base stations, edge computing nodes, and intelligent traffic management. It can quickly match the optimal load switching logic for changes in the core equipment composition of different sites, significantly enhancing the engineering applicability and scenario expansion capability of the management solution, and reducing the secondary development cost of cross-scenario deployment. Attached Figure Description

[0018] Figure 1 This is a flowchart illustrating the outdoor cabinet power supply and storage management method based on hierarchical load priority according to the present invention. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] like Figure 1 As shown, this embodiment of the invention provides a method for managing outdoor cabinet power supply and storage based on hierarchical load priority, including the following steps: Step 1: Pre-store the load priority list in the controller and divide the loads in the outdoor cabinet into three priority levels: high importance loads, medium importance loads, and low importance loads. Each level corresponds to at least one independently controllable power supply circuit. Step 2: Monitor the mains power input status in real time through the voltage detection module, collect the remaining power information of the UPS in real time through the power detection module, and transmit the mains power input status and remaining power information to the controller; Step 3: The controller determines whether the mains power is interrupted. If the mains power is detected to be normal, the controller maintains normal power supply to all loads. If the mains power is detected to be interrupted, the controller proceeds to step 4. Step 4: The controller determines whether the remaining power of the UPS is lower than the first preset threshold. If it is lower than the first preset threshold, the controller will cut off the power supply circuits corresponding to the low-importance loads in order of priority from low to high, and then proceed to Step 5. Step 5: The controller determines whether the remaining power of the UPS is lower than the second preset threshold. If it is lower than the second preset threshold, the power supply circuit corresponding to the medium-importance load is cut off, and the process proceeds to Step 6. Step 6: Only keep high-critical loads continuously powered by the UPS until the UPS runs out of power and shuts down automatically, or until mains power is restored and all loads are reconnected. Each time the controller performs a load shedding operation, it records the timestamp of the load shedding event, the priority level of the disconnected load, and the remaining power of the UPS at that time, and stores the load shedding event in the local memory or uploads it to the remote monitoring platform through the communication module.

[0021] This method records timestamps, load priorities, and remaining UPS power during load shedding, constructing a power outage event data chain. The timestamps restore the time sequence, facilitating fault location. The association between priority and power ensures the rationality of load shedding logic and thresholds during maintenance review. Local storage prevents data loss during network outages, and communication uploads support remote access and analysis. The mechanism enables full-process traceability, providing support for optimizing load configuration, predicting battery degradation, and reducing inspection costs, significantly improving the level of intelligent operation and maintenance of outdoor cabinets.

[0022] It is worth noting that when the mains power is restored, the controller checks whether the mains voltage is stable. If the mains voltage remains within the normal voltage range within a preset time, the controller will reconnect the disconnected load power supply circuits in order of priority from high to low, and check the system operating status after a delay each time the circuits are reconnected.

[0023] The load priority list in step one is divided based on at least one of the following: the criticality of the devices connected to the load, the rated power of the load, the type of business to which the load belongs, and user-defined configuration parameters; the load priority list can be dynamically adjusted through a local configuration interface or a remote management platform.

[0024] Multi-dimensional segmentation allows configurations to align with business needs, taking into account both device criticality and preferences; dynamic adjustments enable the system to flexibly adapt to different scenarios, enhancing its relevance and ease of use.

[0025] In step two, the power detection module includes a voltage sensor and a current sensor. The power detection module calculates the real-time remaining power of the UPS by sampling the voltage and current at the UPS output terminal. The remaining power is expressed as a percentage. The first preset threshold is 20% to 40% of the total UPS capacity, and the second preset threshold is 10% to 20% of the total UPS capacity.

[0026] Voltage and current are sampled to calculate power consumption and displayed as a percentage, facilitating accurate load shedding; threshold values ​​are used to calculate capacity ratios, adapting to different UPS systems and enhancing versatility and configurability.

[0027] In step four, the power supply circuits of the low-importance loads are cut off sequentially. Specifically, when the low-importance load contains multiple independent loads, the controller cuts off the power supply circuits of each low-importance load one by one in a preset sub-priority order with a preset delay time between two adjacent cut-off operations to avoid instantaneous current surges.

[0028] The sub-priority delay disconnects the load gradually, preventing concentrated disconnections from causing current surges and voltage drops, thus protecting the devices and improving load shedding stability.

[0029] Between steps five and six, the following step is also included: when the remaining power of the UPS is lower than the second preset threshold, the controller sends a power warning signal to the remote monitoring platform before disconnecting the medium-critical load, and activates the local audible and visual alarm device to prompt maintenance personnel to handle the situation in a timely manner.

[0030] Before disconnecting medium- or critical loads, issue a warning and sound and light alarm to allow personnel time to respond, avoid sudden power loss to critical loads, reduce the risk of interruption, and improve the efficiency of operation and maintenance response.

[0031] In step six, only the high-importance loads are continuously powered by the UPS. This also includes: the controller monitors the total power consumption of the high-importance loads in real time. When the total power of the high-importance loads exceeds a preset ratio of the UPS's rated output power, the controller further selectively disconnects the high-importance loads according to their sub-priorities.

[0032] Monitor total power under high load, and switch over according to sub-priority to prevent UPS overload shutdown, and maintain power supply to core equipment to the maximum extent even under extreme conditions.

[0033] A tiered load-priority outdoor rack-mounted energy storage management system includes: The controller has a pre-stored load priority list, which is used to divide the loads in the outdoor cabinet into three priority levels: high importance loads, medium importance loads, and low importance loads. The voltage detection module is connected to the mains input terminal and is used to monitor the mains input voltage status in real time and transmit the detection results to the controller. The power detection module is connected to the UPS output terminal and is used to collect the remaining power information of the UPS in real time and transmit the detection results to the controller. Multiple independently controllable power supply circuits, each power supply circuit corresponding to a load of a priority level, and each power supply circuit is controlled by the switch of the controller. Local storage, connected to the controller, is used to record the timestamp of each load shedding event, the priority level of the disconnected load, and the remaining power of the UPS at that time; The communication module, connected to the controller, is used to upload load switching events to the remote monitoring platform; The controller is configured to: when a mains power failure is detected and the remaining power of the UPS is lower than a first preset threshold, sequentially cut off the power supply circuits corresponding to low-importance loads; when the remaining power of the UPS is lower than a second preset threshold, cut off the power supply circuits corresponding to medium-importance loads; and only keep the high-importance loads continuously powered by the UPS.

[0034] The system uses a modular architecture to decouple detection, control, execution, and recording functions, and the units work together to achieve full automation of hierarchical load switching. Independent power supply circuits ensure that each load can be accurately isolated and independently controlled. Local storage and communication modules take into account event traceability and remote operation and maintenance capabilities, so that outdoor cabinets can prioritize and protect critical loads without manual intervention when the mains power fails. This significantly improves power supply reliability and management efficiency, extends the endurance of core businesses, and reduces operation and maintenance costs.

[0035] The controller is also connected to a local configuration interface, which allows maintenance personnel to modify the load priority list, adjust the values ​​of the first and second preset thresholds, and view the load shedding event logs on-site.

[0036] The local interface allows personnel to modify policies, adjust thresholds, and check logs on-site without a network connection, improving debugging convenience and offline maintainability, making it suitable for weak network outdoor environments.

[0037] The system also includes an environmental monitoring module, which collects temperature, humidity and smoke concentration information inside the outdoor cabinet and transmits the information to the controller. When the controller determines that the ambient temperature exceeds the preset safe operating range, it prioritizes cutting off non-temperature-controlled loads to reduce the overall power consumption.

[0038] Environmental linkage monitoring prioritizes cutting off non-temperature-controlled loads to reduce power consumption when temperatures exceed the limit, preventing overheating damage to equipment, extending UPS battery life, and improving overall safety in outdoor environments.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A method for managing the power supply and storage of outdoor cabinets based on hierarchical load priority, characterized in that, Includes the following steps: Step 1: Pre-store the load priority list in the controller and divide the load in the outdoor cabinet into three priority levels: high importance load, medium importance load and low importance load. Each level corresponds to at least one independently controllable power supply circuit. Step 2: Monitor the mains power input status in real time through the voltage detection module, collect the remaining power information of the UPS in real time through the power detection module, and transmit the mains power input status and remaining power information to the controller; Step 3: The controller determines whether the mains power is interrupted. If it detects that the mains power is normal, it maintains normal power supply to all loads. If a power outage is detected, proceed to step four; Step 4: The controller determines whether the remaining power of the UPS is lower than the first preset threshold. If it is lower than the first preset threshold, the controller will cut off the power supply circuits corresponding to the low-importance loads in order of priority from low to high, and then proceed to Step 5. Step 5: The controller determines whether the remaining power of the UPS is lower than the second preset threshold. If it is lower than the second preset threshold, the power supply circuit corresponding to the medium-importance load is cut off, and the process proceeds to Step 6. Step 6: Only keep the high-critical loads continuously powered by the UPS until the UPS runs out of power and shuts down automatically, or until the mains power is restored and all loads are reconnected. The controller records the timestamp of the load shedding event, the priority level of the disconnected load, and the remaining power of the UPS at that time each time it performs a load shedding operation, and stores the load shedding event in the local memory or uploads it to the remote monitoring platform through the communication module.

2. The outdoor cabinet power supply and storage management method with hierarchical load priority as described in claim 1, characterized in that, The load priority list in step one is divided based on at least one of the following: the criticality of the devices connected to the load, the rated power of the load, the type of service to which the load belongs, and user-defined configuration parameters; the load priority list can be dynamically adjusted through a local configuration interface or a remote management platform.

3. The outdoor cabinet power supply and storage management method with hierarchical load priority as described in claim 1, characterized in that: The power detection module in step two includes a voltage sensor and a current sensor. The power detection module calculates the real-time remaining power of the UPS by sampling the voltage and current at the UPS output terminal. The remaining power is expressed as a percentage. The first preset threshold is 20% to 40% of the total UPS capacity, and the second preset threshold is 10% to 20% of the total UPS capacity.

4. The outdoor cabinet power supply and storage management method with hierarchical load priority as described in claim 1, characterized in that, Step four, which involves sequentially cutting off the power supply circuits of low-importance loads, specifically includes: when a low-importance load contains multiple independent loads, the controller sequentially and delays cutting off the power supply circuits of each low-importance load according to a preset sub-priority order, with a preset delay time between two adjacent cutting-off operations to avoid instantaneous current surges.

5. The outdoor cabinet power supply and storage management method with hierarchical load priority as described in claim 1, characterized in that, Between steps five and six, the following is also included: when the remaining power of the UPS is lower than the second preset threshold, the controller sends a power warning signal to the remote monitoring platform before disconnecting the medium-critical load, and activates the local audible and visual alarm device to prompt maintenance personnel to handle the situation in a timely manner.

6. The outdoor cabinet power supply and storage management method with hierarchical load priority as described in claim 1, characterized in that, Step six, which states that only high-importance loads are continuously powered by the UPS, also includes: the controller monitors the total power consumption of high-importance loads in real time, and when the total power of high-importance loads exceeds a preset proportion of the UPS's rated output power, it further selectively disconnects the high-importance loads according to sub-priority.

7. A graded load priority outdoor cabinet power supply and storage management system, characterized in that, include: The controller has a pre-stored load priority list, which is used to divide the loads in the outdoor cabinet into three priority levels: high importance loads, medium importance loads, and low importance loads. A voltage detection module, connected to the mains input terminal, is used to monitor the mains input voltage status in real time and transmit the detection results to the controller; A power detection module, connected to the UPS output, is used to collect the remaining power information of the UPS in real time and transmit the detection results to the controller. Multiple independently controllable power supply circuits, each power supply circuit corresponding to a load of a priority level, and each power supply circuit is controlled by the switch of the controller; The local storage, connected to the controller, is used to record the timestamp of each load shedding event, the priority level of the disconnected load, and the remaining power of the UPS at that time. A communication module, connected to the controller, is used to upload the load-switching event to a remote monitoring platform; The controller is configured to: when a mains power failure is detected and the remaining power of the UPS is lower than a first preset threshold, sequentially cut off the power supply circuits corresponding to low-importance loads; when the remaining power of the UPS is lower than a second preset threshold, cut off the power supply circuits corresponding to medium-importance loads; and only allow high-importance loads to be continuously powered by the UPS.

8. The outdoor cabinet power supply and storage management system with hierarchical load priority as described in claim 7, characterized in that: The controller is also connected to a local configuration interface, which allows maintenance personnel to modify the load priority list, adjust the values ​​of the first and second preset thresholds, and view the load shedding event logs on-site.

9. The outdoor cabinet power supply and storage management system with hierarchical load priority as described in claim 7, characterized in that: The system also includes an environmental monitoring module, which is used to collect temperature, humidity and smoke concentration information inside the outdoor cabinet and transmit the temperature, humidity and smoke concentration information to the controller; when the controller determines that the ambient temperature exceeds the preset safe operating range, it will prioritize cutting off non-temperature-controlled loads to reduce the overall power consumption.

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