PoE power supply management method and device, electronic equipment and medium

Abstract

The present specification provides a POE power supply management method and device, electronic equipment and medium. The method comprises: monitoring the power of each POE port of a POE switch; if the power of the POE port is greater than a pre-warning threshold, sending a pre-warning message to an AP connected to the POE port; if the power of the POE port is greater than a critical threshold, sending an over-limit warning message to the AP connected to the POE port, the critical threshold being greater than the pre-warning threshold; if a migration completion notification message sent by the AP is received in the case that the power of the POE port is greater than the critical threshold, performing a power-off operation on the POE port.

Description

Technical Field

[0001] This specification relates to the field of communication technology, and in particular to PoE power supply management methods, devices, electronic equipment and media. Background Technology

[0002] In existing wireless network deployments, Access Points (APs) can be powered by PoE (Power over Ethernet) supported switches. Each PoE port on a switch has a fixed maximum power supply limit, and the entire switch also has a total power limit. When an AP's power consumption increases under high service load and exceeds the port or overall power limit, the switch will forcibly power off the AP, causing it to restart and interrupting service. Summary of the Invention

[0003] To overcome the problems existing in related technologies, this specification provides PoE power supply management methods, devices, electronic devices and media.

[0004] According to a first aspect of the embodiments of this specification, a PoE power supply management method is provided, the method comprising: monitoring the power of each PoE port of the PoE switch; if the power of the PoE port is greater than a warning threshold, sending a warning message to the AP connected to the PoE port; if the power of the PoE port is greater than a critical threshold, sending an over-limit warning message to the AP connected to the PoE port, the critical threshold being greater than the warning threshold; and if a migration completion notification message is received from the AP when the power of the PoE port is greater than the critical threshold, performing a power-off operation on the PoE port.

[0005] According to a second aspect of the embodiments of this specification, a PoE power supply management method is provided, the method comprising: if a pre-alarm message is received from a PoE switch, performing a signal scan to obtain performance information of at least one neighboring AP; determining at least one candidate AP from the at least one neighboring AP based on the performance information of the neighboring AP; determining at least one candidate client from the associated clients based on the priority of the associated clients; if an over-limit warning message is received from a PoE switch, instructing the at least one candidate client to migrate to the at least one candidate AP; and after the at least one candidate client has migrated to the at least one candidate AP, sending a migration completion notification message to the PoE switch.

[0006] According to a third aspect of the embodiments of this specification, a PoE power supply management device is provided, comprising: a monitoring module for monitoring the power of each PoE port of the PoE switch; an early warning module for sending an early warning message to an AP connected to the PoE port if the power of the PoE port exceeds an early warning threshold; an over-limit warning module for sending an over-limit warning message to an AP connected to the PoE port if the power of the PoE port exceeds a critical threshold, wherein the critical threshold is greater than the early warning threshold; and a power-off module for performing a power-off operation on the PoE port if a migration completion notification message is received from the AP when the power of the PoE port exceeds the critical threshold.

[0007] According to a fourth aspect of the embodiments of this specification, a PoE power management device is provided, comprising: a scanning module, configured to perform signal scanning to obtain performance information of at least one neighboring AP if a pre-alarm message is received from a PoE switch; a candidate AP determination module, configured to determine at least one candidate AP from the at least one neighboring AP based on the performance information of the neighboring AP; a candidate client determination module, configured to determine at least one candidate client from associated clients based on the priority of associated clients; a migration module, configured to instruct the at least one candidate client to migrate to the at least one candidate AP if an over-limit warning message is received from a PoE switch; and a result notification module, configured to send a migration completion notification message to the PoE switch after the at least one candidate client has migrated to the at least one candidate AP.

[0008] According to a fifth aspect of the embodiments of this specification, an electronic device is provided, comprising: processor; Memory used to store processor-executable instructions; The processor is configured to execute the PoE power management method of the first aspect, the second aspect, or any corresponding embodiment thereof described above.

[0009] According to a sixth aspect of the embodiments of this specification, a computer-readable storage medium is provided, the computer-readable storage medium storing computer instructions, the computer instructions being used to cause a computer to perform the PoE power supply management method of the first aspect, the second aspect or any corresponding embodiment thereof described above.

[0010] The technical solutions provided in the embodiments of this specification may include the following beneficial effects: In the embodiments described in this specification, real-time negotiation between the PoE switch and the AP avoids service interruptions caused by forced power outages, thereby improving the reliability of the wireless network and the user experience.

[0011] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this specification. Attached Figure Description

[0012] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this specification and, together with the description, serve to explain the principles of this specification.

[0013] Figure 1 This is a schematic diagram of a system architecture illustrated in this specification according to an exemplary embodiment.

[0014] Figure 2 This is a flowchart illustrating a PoE power supply management method according to an exemplary embodiment of this specification.

[0015] Figure 3 This is a hardware structure diagram of a computer device containing the POE power management device in the embodiments of this specification.

[0016] Figure 4 This is a block diagram illustrating a PoE power management device according to an exemplary embodiment.

[0017] Figure 5 This specification illustrates a block diagram of another PoE power management device according to an exemplary embodiment. Detailed Implementation

[0018] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this specification. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this specification as detailed in the appended claims.

[0019] The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of this specification. The singular forms “a,” “the,” and “the” as used in this specification and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

[0020] It should be understood that although the terms first, second, third, etc., may be used in this specification to describe various information, this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of this specification, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "when," "when," or "in response to determination."

[0021] The embodiments described in this specification will now be described in detail.

[0022] The following combination Figure 1 The system architecture of the PoE power management method and device applicable to the embodiments of this specification will be described. It should be noted that... Figure 1 The examples shown are merely examples of system architectures that can be applied to the embodiments of this specification, in order to help those skilled in the art understand the technical content of this specification, but do not mean that the embodiments of this specification cannot be used in other devices, systems, environments or scenarios.

[0023] Figure 1 This is a schematic diagram of a system architecture illustrated in this specification according to an exemplary embodiment.

[0024] like Figure 1 As shown, the system architecture may include, for example, a PoE switch, an access point (AP), and a client.

[0025] The client can be any electronic device that supports network communication, including but not limited to smartphones, tablets, laptops, and desktop computers.

[0026] A PoE switch can include at least one PoE port. Each PoE port has a fixed maximum power supply limit, and the entire switch also has a total power limit. Access points (APs) can be connected to PoE ports, and the PoE switch can supply power to the APs through these ports.

[0027] The PoE power supply management method provided in the embodiments of this specification will be described in detail below. For example... Figure 2 As shown, Figure 2 This is a flowchart illustrating a PoE power management method according to an exemplary embodiment of this specification. The PoE power management method provided in the embodiments of this specification may include the following steps.

[0028] In step 210, the PoE switch monitors the power of each PoE port of the PoE switch.

[0029] In step 220, if the power of the PoE port is greater than the warning threshold, the PoE switch sends a warning message to the AP connected to the PoE port.

[0030] According to the embodiments of this specification, the warning threshold can be set according to actual needs, for example, 80% of the maximum power can be set as the warning threshold.

[0031] Optionally, the warning message can be based on the Link Layer Discovery Protocol (LLDP). Based on this, a warning status identifier can be written into a custom field of the LLDP protocol message to obtain the warning message. The over-limit status identifier can be used to indicate that the PoE port is in a warning state.

[0032] In step 230, if the AP receives a pre-alarm message sent by the PoE switch, it performs a signal scan to obtain the performance information of at least one neighboring AP.

[0033] According to embodiments of this specification, performance information may include, for example, signal strength, channel information, load conditions, and supported capabilities.

[0034] In step 240, the AP determines at least one candidate AP from at least one neighboring AP based on the performance information of the neighboring APs.

[0035] According to embodiments of this specification, an AP can select neighboring APs whose performance information meets preset conditions as candidate APs. Preset conditions may include, for example, a signal strength greater than a signal strength threshold, or a current load less than a load threshold. The signal strength threshold and load threshold can be set according to actual needs.

[0036] In step 250, the AP determines at least one candidate client from the associated clients based on the priority of the associated clients.

[0037] Optionally, client priority can be determined based on at least one of the following: client signal strength, service priority, traffic volume, and protocol support information. For example, clients with more distant signal strength have higher priority, clients with higher service priority have higher priority, clients with higher traffic volume have higher priority, and / or clients supporting preset protocols have higher priority. Preset protocols may include, for example, 802.11k / v / r.

[0038] In step 260, if the power of the PoE port is greater than the critical threshold, the PoE switch sends an over-limit warning message to the AP connected to the PoE port, where the critical threshold is greater than the warning threshold.

[0039] According to the embodiments in this specification, the critical threshold is greater than the warning threshold. The critical threshold can be set according to actual needs; for example, 95% of the power limit can be set as the critical threshold.

[0040] Optionally, the over-limit warning message can be based on the LLDP protocol, for example. Based on this, an over-limit status identifier can be written into a custom field of the LLDP protocol message to obtain the over-limit warning message. The over-limit status identifier can be used to indicate that the PoE port is in an over-limit state.

[0041] In step 270, if an over-limit warning message is received from the PoE switch, the AP instructs at least one candidate client to migrate to at least one candidate AP.

[0042] According to the embodiments of this specification, information about candidate APs is actively sent to the client, and the client can connect to one of the candidate APs based on the information.

[0043] Optionally, upon receiving an over-limit warning message from the PoE switch, the AP can refuse to accept association requests from new clients to avoid increasing the power consumption of the PoE port.

[0044] In step 280, after at least one candidate client has migrated to at least one candidate AP, the AP sends a migration completion notification message to the PoE switch.

[0045] According to the embodiments in this specification, after a client successfully associates with a candidate AP, the client can send a notification that the migration is complete to the AP. Alternatively, the candidate AP can notify the AC (Access Controller) via the CAPWAP protocol to update the client's association entry. The AC then notifies the AP, allowing the AP to determine that the client migration is complete.

[0046] Optionally, the migration completion notification message can be based on the LLDP protocol, for example. Based on this, a migration completion identifier can be written into a custom field of the LLDP protocol message to obtain a migration completion message. This migration completion identifier can be used to indicate that the client has completed the migration.

[0047] In step 290, if the power of the POE port is greater than the critical threshold, and a migration completion notification message is received from the AP, the POE switch will perform a power-off operation on the POE port.

[0048] According to the embodiments in this specification, real-time negotiation between the PoE switch and the AP avoids service interruptions caused by forced power outages, thereby improving the reliability of the wireless network and the user experience.

[0049] Optionally, if the power of the PoE port is greater than the power limit but less than or equal to the warning threshold, the PoE switch can increase the power limit of the PoE port if the remaining PoE power is greater than a first remaining power threshold. This provides the AP with more buffer time and power headroom, preventing an immediate power outage. The first remaining power threshold can be set according to actual needs. For example, if the total remaining PoE power exceeds 20% of the power limit of the PoE port, the power limit of the PoE port can be increased by 20%.

[0050] Optionally, if multiple PoE ports simultaneously have power exceeding the power limit but less than or equal to the warning threshold, the PoE switch may, provided the remaining PoE power exceeds a first remaining power threshold, prioritize increasing the power limit for the PoE ports experiencing peak power usage. The peak power usage periods for the PoE ports can be determined based on their historical power consumption data.

[0051] Optionally, for each PoE port, the PoE switch can increase the power limit of the PoE port before the peak period arrives, provided that the remaining PoE power is greater than a second remaining power threshold. The second remaining power threshold can be set according to actual needs. The first and second remaining power thresholds can be the same or different.

[0052] Optionally, for each PoE port, the PoE switch can send a pre-warning message to the AP connected to the PoE port before the peak period of the PoE port arrives.

[0053] Optionally, if the power consumption of the PoE port remains less than or equal to the warning threshold for a preset duration after sending an over-limit warning message to the AP connected to the PoE port, the PoE switch can send a power supply normalization notification message to the AP. The preset duration can be set according to actual needs, such as 10 minutes.

[0054] After receiving a power supply notification message from the PoE switch, the AP stops any incomplete client migration operations and allows the reception of association requests from new clients.

[0055] The PoE power management method according to the embodiments of this specification achieves dynamic and flexible management of PoE power supply, improving the utilization rate of power resources. Furthermore, it can improve the reliability and user experience of wireless networks without relying on hardware upgrades. It is particularly suitable for high-density or high-fluctuation wireless network scenarios.

[0056] Based on the foregoing embodiments, the PoE power supply management method will be described below with reference to another embodiment. This method may include the following stages: Phase 1: Power supply scenario perception and learning.

[0057] During the power supply process to the AP, the PoE switch continuously monitors the real-time power consumption of each port and records historical power consumption data. By analyzing the power consumption patterns of the past three days, the port power supply scenarios are divided into peak periods, normal periods, and off-peak periods, providing a basis for dynamic adjustments.

[0058] Phase 2: Power status negotiation based on LLDP.

[0059] PoE switches allow PoE ports to exceed their nominal power limit within a certain range (e.g., no more than 20%), and dynamically adjust the power supply limit of the ports provided that the overall power consumption does not exceed the limit.

[0060] When the power consumption of a PoE port continues to rise and approaches the warning threshold (e.g., the 90% upper limit), the PoE switch sends a warning message to the AP through the LLDP protocol extension field.

[0061] If port power consumption must be reduced, the PoE switch notifies the AP to adjust services via LLDP; if it continues to rise to the critical threshold, it sends an over-limit warning message to the AP via the LLDP protocol extension field, which is an alarm to immediately cut off power.

[0062] Phase 3: Adaptive migration of AP services.

[0063] After receiving a pre-alarm message from the PoE switch, the AP can initiate the 802.11k / v / r protocol to scan neighboring APs and channels, preparing for service migration.

[0064] When power consumption must be reduced, the AP analyzes the current service load and navigates some terminals to a neighboring AP to reduce its own power consumption.

[0065] If an over-limit warning message is received, the AP will immediately switch all services to the neighboring AP, notify the PoE switch to perform a restart, and suspend new terminal access.

[0066] Once the power consumption returns to a safe range, the PoE switch notifies the AP to resume normal operation mode.

[0067] The PoE power management method according to the embodiments of this specification improves the intelligence of PoE energy utilization and the robustness and self-healing capability of the overall wireless network. This ensures a smooth user experience, preventing sudden service interruptions even during periods of increased local network pressure. Furthermore, it eliminates the need for urgent replacement of expensive, high-power switches, maximizing the utilization of existing investments and significantly reducing complaints about service interruptions caused by power supply issues.

[0068] Corresponding to the embodiments of the aforementioned methods, this specification also provides embodiments of a PoE power management device and the terminals to which it is applied.

[0069] The PoE power management device embodiments described in this specification can be applied to computer devices, such as servers or terminal devices. The device embodiments can be implemented through software, hardware, or a combination of both. Taking software implementation as an example, as a logical device, it is formed by the processor reading the corresponding computer program instructions from non-volatile memory into memory and executing them. From a hardware perspective, such as... Figure 3 The diagram shown is a hardware structure diagram of a computer device containing the PoE power management device as described in this specification, except... Figure 3 In addition to the processor 310, memory 330, network interface 320, and non-volatile memory 340 shown, the server or electronic device where the device 331 is located in the embodiment may also include other hardware depending on the actual function of the computer device, which will not be described in detail here.

[0070] like Figure 4 As shown, Figure 4 This is a block diagram illustrating a PoE power management device according to an exemplary embodiment of this specification. The device includes: Monitoring module 410 is used to monitor the power of each PoE port of the PoE switch; The early warning module 420 is used to send an early warning message to the AP connected to the PoE port if the power of the PoE port is greater than the early warning threshold. The over-limit warning module 430 is used to send an over-limit warning message to the AP connected to the PoE port if the power of the PoE port is greater than the critical threshold, where the critical threshold is greater than the warning threshold. The power-off module 440 is used to perform a power-off operation on the PoE port if a migration completion notification message is received from the AP when the power of the PoE port exceeds a critical threshold.

[0071] Optionally, the device may further include: The first boosting module is used to increase the power limit of the PoE port if the power of the PoE port is greater than the power limit and less than or equal to the warning threshold, and the remaining PoE power is greater than the first remaining power threshold.

[0072] Optionally, the first boosting module can also be used to prioritize boosting the power limit of the PoE port that is in peak period among the multiple PoE ports if the power of multiple PoE ports is greater than the power limit and less than or equal to the warning threshold at the same time, and the remaining PoE power is greater than the first remaining power threshold. The peak period of the PoE port is determined based on the historical power consumption data of the PoE port.

[0073] Optionally, the device may further include: The second boosting module is used to increase the power limit of each PoE port before the peak period of the PoE port arrives, provided that the remaining PoE power is greater than the second remaining power threshold. The peak period of the PoE port is determined based on the historical power consumption data of the PoE port.

[0074] Optionally, the device may further include: The early warning message sending module is used to send an early warning message to the AP connected to the PoE port before the peak period of the PoE port arrives. The peak period of the PoE port is determined based on the historical power consumption data of the PoE port.

[0075] Optionally, the device may further include: The power supply normal notification message sending module is used to send a power supply normal notification message to the AP if, after sending an over-limit warning message to the AP connected to the POE port, the power of the POE port continues to be less than or equal to the warning threshold for a preset duration.

[0076] Optionally, the early warning message, over-limit warning message, and power supply normal notification message are based on the Link Layer Discovery Protocol (LLDP).

[0077] Accordingly, this specification also provides an electronic device including a processor and a memory for storing processor-executable instructions; wherein the processor is configured to: monitor the power of each PoE port of a PoE switch; if the power of the PoE port exceeds a warning threshold, send a warning message to the AP connected to the PoE port; if the power of the PoE port exceeds a critical threshold, send an over-limit warning message to the AP connected to the PoE port, wherein the critical threshold is greater than the warning threshold; and if a migration completion notification message is received from the AP when the power of the PoE port exceeds the critical threshold, perform a power-off operation on the PoE port.

[0078] like Figure 5 As shown, Figure 5 This is a block diagram illustrating another PoE power management device according to an exemplary embodiment of this specification, the device comprising: The scanning module 510 is used to perform a signal scan to obtain the performance information of at least one neighboring AP if it receives a pre-alarm message sent by the PoE switch. The candidate AP determination module 520 is used to determine at least one candidate AP from at least one neighboring AP based on the performance information of the neighboring APs; The candidate client determination module 530 is used to determine at least one candidate client from the associated clients based on the priority of the associated clients; Migration module 540 is used to instruct at least one candidate client to migrate to at least one candidate AP if an over-limit warning message is received from a PoE switch. The result notification module 550 is used to send a migration completion notification message to the PoE switch after at least one candidate client has migrated to at least one candidate AP.

[0079] Optionally, the device may further include: The rejection module is used to reject new client association requests when an over-limit warning message is received from a PoE switch.

[0080] Optionally, the client's priority is determined based on at least one of the client's signal strength, service priority, traffic, and protocol support information.

[0081] Optionally, the device may further include: The recovery module is used to stop incomplete client migration operations and allow the reception of association requests from new clients if a power supply notification message is received from the PoE switch.

[0082] Accordingly, this specification also provides an electronic device including a processor; a memory for storing processor-executable instructions; wherein the processor is configured to: if a pre-alarm message is received from a PoE switch, perform a signal scan to obtain performance information of at least one neighboring AP; determine at least one candidate AP from the at least one neighboring AP based on the performance information of the neighboring AP; determine at least one candidate client from the associated clients based on the priority of the associated clients; if an over-limit warning message is received from a PoE switch, instruct the at least one candidate client to migrate to the at least one candidate AP; and after the at least one candidate client has migrated to the at least one candidate AP, send a migration completion notification message to the PoE switch.

[0083] According to the embodiments in this specification, real-time negotiation between the PoE switch and the AP avoids service interruptions caused by forced power outages, thereby improving the reliability of the wireless network and the user experience.

[0084] The specific implementation process of the functions and roles of each module in the above device can be found in the implementation process of the corresponding steps in the above method, and will not be repeated here.

[0085] For the device embodiments, since they basically correspond to the method embodiments, the relevant parts can be referred to in the description of the method embodiments. The device embodiments described above are merely illustrative. The modules described as separate components may or may not be physically separate, and the components shown as modules may or may not be physical modules, that is, they may be located in one place or distributed across multiple network modules. Some or all of the modules can be selected to achieve the purpose of the solution in this specification according to actual needs. Those skilled in the art can understand and implement this without creative effort.

[0086] The foregoing has described specific embodiments of this specification. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims may be performed in a different order than that shown in the embodiments and may still achieve the desired result. Furthermore, the processes depicted in the drawings do not necessarily require the specific or sequential order shown to achieve the desired result. In some embodiments, multitasking and parallel processing are possible or may be advantageous.

[0087] Other embodiments of this specification will readily occur to those skilled in the art upon consideration of the specification and practice of the invention claimed herein. This specification is intended to cover any variations, uses, or adaptations that follow the general principles of this specification and include common knowledge or customary techniques in the art not claimed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this specification are indicated by the following claims.

[0088] It should be understood that this specification is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this specification is limited only by the appended claims.

[0089] The above description is merely a preferred embodiment of this specification and is not intended to limit this specification. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this specification should be included within the scope of protection of this specification.

Claims

1. A PoE power supply management method, applied to a PoE switch, characterized in that, The method includes: For each PoE port of the PoE switch, monitor the power of the PoE port; If the power of the PoE port is greater than the warning threshold, a warning message is sent to the AP connected to the PoE port. If the power of the PoE port is greater than the critical threshold, an over-limit warning message is sent to the AP connected to the PoE port, where the critical threshold is greater than the warning threshold. If the power of the PoE port exceeds a critical threshold, and a migration completion notification message is received from the AP, then a power-off operation is performed on the PoE port.

2. The method according to claim 1, characterized in that, The method further includes: If the power of the PoE port is greater than the power limit and less than or equal to the warning threshold, then if the remaining PoE power is greater than the first remaining power threshold, the power limit of the PoE port is increased.

3. The method according to claim 2, characterized in that, The method further includes: If multiple PoE ports have power exceeding the power limit but less than or equal to the warning threshold, then if the remaining PoE power exceeds the first remaining power threshold, the power limit of the PoE port that is in peak period will be increased first. The peak period of the PoE port is determined based on the historical power consumption data of the PoE port.

4. The method according to claim 1, characterized in that, The method further includes: For each PoE port, before the peak period of the PoE port arrives, if the remaining PoE power is greater than the second remaining power threshold, the power limit of the PoE port is increased. The peak period of the PoE port is determined based on the historical power consumption data of the PoE port.

5. The method according to claim 1, characterized in that, The method further includes: For each PoE port, a pre-warning message is sent to the AP connected to the PoE port before the peak period of the PoE port arrives. The peak period of the PoE port is determined based on the historical power consumption data of the PoE port.

6. The method according to claim 1, characterized in that, The method further includes: If, after sending an over-limit warning message to the AP connected to the PoE port, the power of the PoE port remains less than or equal to the warning threshold for a preset duration, a power supply normal notification message is sent to the AP.

7. The method according to claim 5, characterized in that, The early warning message, the over-limit warning message, and the power supply normal notification message are based on the Link Layer Discovery Protocol (LLDP).

8. A PoE power supply management method, applied to an AP, characterized in that, The method includes: If a pre-alarm message is received from the PoE switch, a signal scan is performed to obtain the performance information of at least one neighboring AP. Based on the performance information of the neighboring APs, at least one candidate AP is determined from the at least one neighboring APs; Based on the priority of the associated clients, determine at least one candidate client from the associated clients; If an over-limit warning message is received from the PoE switch, the at least one candidate client is instructed to migrate to the at least one candidate AP; After the at least one candidate client has migrated to the at least one candidate AP, a migration completion notification message is sent to the PoE switch.

9. The method according to claim 8, characterized in that, The method further includes: If an over-limit warning message is received from the PoE switch, the association request from a new client will be rejected.

10. The method according to claim 8, characterized in that, The priority of the client is determined based on at least one of the following: client signal strength, service priority, traffic, and protocol support information.

11. The method according to claim 8, characterized in that, The method further includes: If a power supply notification message is received from the PoE switch, the incomplete client migration operation is stopped and the reception of association requests from new clients is allowed.

12. A PoE power supply management device, characterized in that, The device includes: The monitoring module is used to monitor the power of each PoE port of the PoE switch. The early warning module is used to send an early warning message to the AP connected to the PoE port if the power of the PoE port is greater than the early warning threshold. The over-limit warning module is used to send an over-limit warning message to the AP connected to the PoE port if the power of the PoE port is greater than a critical threshold, wherein the critical threshold is greater than the warning threshold. The power-off module is used to perform a power-off operation on the PoE port if a migration completion notification message sent by the AP is received when the power of the PoE port exceeds a critical threshold.

13. A PoE power supply management device, characterized in that, The device includes: The scanning module is used to perform a signal scan to obtain the performance information of at least one neighboring AP if a pre-alarm message is received from the PoE switch. The candidate AP determination module is used to determine at least one candidate AP from the at least one neighboring AP based on the performance information of the neighboring APs; The candidate client determination module is used to determine at least one candidate client from the associated clients based on the priority of the associated clients; The migration module is used to instruct the at least one candidate client to migrate to the at least one candidate AP if an over-limit warning message is received from the PoE switch. The result notification module is used to send a migration completion notification message to the PoE switch after the at least one candidate client has migrated to the at least one candidate AP.

14. An electronic device, characterized in that, The electronic device includes: processor; Memory used to store processor-executable instructions; The processor is configured to execute the PoE power management method according to any one of claims 1 to 11.

15. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions for causing a computer to perform the PoE power management method according to any one of claims 1 to 11.

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