Power output method, system and device based on power over Ethernet and storage medium

Abstract

The embodiment of the invention provides a power over Ethernet (POE)-based power output system and a power over Ethernet (POE)-based power output control method. The system comprises a POE power supply module which is configured to be connected with Ethernet power supply equipment to receive electric energy and output a first path of direct current; the battery pack is configured to store electric energy and output a second path of direct current; the charging and discharging protection module is configured to monitor the charging and discharging state of the battery pack and cut off the circuit connection of the battery pack when the charging and discharging state is abnormal; the voltage adjusting module is configured to perform voltage conversion processing on the first path of direct current and / or the second path of direct current and output working voltage required by load equipment; the electric quantity monitoring module is configured to monitor the residual electric quantity of the battery pack; and the control module is configured to determine a power supply mode according to the target output power of the load equipment, the maximum rated power of the POE power supply module and the residual electric quantity of the battery pack.

Description

Technical Field

[0001] This specification relates to the field of power management technology, and in particular to a power output method, system, device and storage medium based on Power over Ethernet. Background Technology

[0002] Power over Ethernet (PoE) is a technology that transmits power over a network cable, allowing for simultaneous data transmission and power supply to terminal devices (such as IP phones, access points, and IP cameras) via an existing Ethernet network. PoE is also known as Power over LAN (PoL) or Active Ethernet.

[0003] PoE is very convenient for installing devices such as network cameras, wireless access points (Wi-Fi hotspots), and VoIP phones, because these devices are usually far from power outlets or installed in places where wiring is difficult, such as ceilings and walls. However, existing PoE protocol standards (such as IEEE 802.3af and 802.3at) have limitations in power supply capabilities, with the highest commonly used power in the industry generally in the hundreds of watts range, or a maximum power of 100W.

[0004] Therefore, it is desirable to provide a power output method based on Power over Ethernet (PoE) that can provide stable, high-power power support for high-power devices (such as 200W audio amplifiers) when PoE power supply is limited, thereby reducing the dependence on traditional AC power supply. Summary of the Invention

[0005] This specification provides one or more embodiments of a power output system based on Power over Ethernet (PoE). The system includes: a PoE power supply module configured to connect to a PoE device to receive electrical energy and output a first DC power supply; a battery pack configured to store the electrical energy and output a second DC power supply; a charge / discharge protection module configured to monitor the charge / discharge state of the battery pack and disconnect the battery pack's circuit connection when the charge / discharge state is abnormal; a voltage adjustment module configured to perform voltage conversion processing on the first DC power supply and / or the second DC power supply to output the operating voltage required by the load device; a power monitoring module configured to monitor the remaining power of the battery pack; and a control module configured to determine a power supply mode based on the target output power of the load device, the maximum rated power of the PoE power supply module, and the remaining power of the battery pack. The power supply mode includes one of a PoE power supply mode and a collaborative power supply mode based on the PoE power supply module and the battery pack.

[0006] One embodiment of this specification provides a control method for a power output system based on Power over Ethernet (PoE). The control method includes monitoring the remaining power of a battery pack; and determining a power supply mode based on the target output power of the load device, the maximum rated power of the PoE power supply module, and the remaining power of the battery pack. The power supply mode includes one of a PoE power supply mode and a cooperative power supply mode based on the PoE power supply module and the battery pack.

[0007] This specification provides one or more embodiments of a power output device based on Power over Ethernet (PoE), including at least one processor and at least one memory; the at least one memory is used to store computer instructions; the at least one processor is used to execute at least a portion of the computer instructions to implement the control method described in the above embodiments.

[0008] This specification provides one or more embodiments of a computer-readable storage medium that stores computer instructions. When a computer reads the computer instructions from the storage medium, the computer executes the control method described in the above embodiments. Attached Figure Description

[0009] This specification will be further described by way of exemplary embodiments, which will be described in detail with reference to the accompanying drawings. These embodiments are not limiting; in these embodiments, the same reference numerals denote the same structures, wherein: Figure 1 This is a schematic diagram illustrating application scenarios of a POE-based power output system according to some embodiments of this specification; Figure 2 This is an exemplary block diagram of a power output system based on Power over Ethernet, as shown in some embodiments of this specification; Figure 3 This is an exemplary flowchart of a control method according to some embodiments of this specification; Figure 4 This is an exemplary flowchart of a control method according to some embodiments of this specification. Detailed Implementation

[0010] To more clearly illustrate the technical solutions of the embodiments in this specification, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are merely some examples or embodiments of this specification. For those skilled in the art, these drawings can be applied to other similar scenarios without creative effort. Unless obvious from the context or otherwise specified, the same reference numerals in the drawings represent the same structures or operations.

[0011] It should be understood that the terms “system,” “device,” “unit,” and / or “module” used herein are one way to distinguish different components, elements, parts, sections, or assemblies at different levels. However, if other terms can achieve the same purpose, they may be replaced by other expressions.

[0012] As indicated in this specification and claims, unless the context clearly indicates otherwise, the words "a," "an," "an," and / or "the" do not specifically refer to the singular and may also include the plural. Generally speaking, the terms "comprising" and "including" only indicate the inclusion of expressly identified steps and elements, which do not constitute an exclusive list, and the method or apparatus may also include other steps or elements.

[0013] Flowcharts are used in this specification to illustrate the operations performed by the system according to embodiments of this specification. It should be understood that the preceding or following operations are not necessarily performed in exact order. Instead, the steps can be processed in reverse order or simultaneously. Furthermore, other operations can be added to these processes, or one or more steps can be removed from them.

[0014] In the field of CI (Custom Installation), common systems include smart homes, home theaters, multi-room audio systems, and business conferencing and display systems. These devices are often concealed, have strict wiring standards, operate in complex environments, and are frequently located far from AC power sources, thus creating a strong demand for integrated solutions that combine data processing with secure low-voltage remote power supply. With the increasing power output of devices such as active speakers, lifting mechanisms, high-brightness displays, conference processing hosts, and PTZ cameras, the 100-watt limit has become a bottleneck for deployment and maintenance.

[0015] When power demand exceeds the existing PoE limit, the following measures are typically taken: Option 1 abandons PoE and uses a separate AC power adapter. While simpler, Option 1 increases high-voltage wiring, safety and maintenance costs, and reduces the effectiveness of concealed installation and construction consistency.

[0016] Option 2 uses non-standard or proprietary high-power PoE. While option 2 can maintain a "single-wire" experience, it suffers from poor compatibility, weak interoperability, high cost, and still limited power.

[0017] Option 3 uses local DC or off-grid power such as batteries / solar power. Option 3 offers strong independence but is costly and complex to maintain, making it unsuitable for large-scale deployment.

[0018] Method 4 uses remote DC power supply (dedicated low-voltage cable). Method 4 can improve power and security, but data and power are separated, and the installation and integration are not as integrated as PoE. It also lacks the ability to negotiate and manage with the network side.

[0019] Meanwhile, the installation of AC power lines in the CI (Computer Interface) field involves safety regulations, requiring only certified personnel to provide on-site service, which increases implementation difficulty and cost. Furthermore, CI equipment often has both high-voltage AC power and low-voltage input signal lines, and mixing the two can easily lead to safety issues.

[0020] Therefore, how to provide a high-power, compatible, and safe power supply solution that exceeds the existing PoE limit while maintaining the advantages of Ethernet data transmission and centralized low-voltage power supply has become a technical problem that the industry urgently needs to solve.

[0021] In some embodiments of this specification, a PoE-based power output method is provided, which breaks through the PoE 100-watt power bottleneck and covers higher power loads through intelligent power negotiation, hierarchical power supply and safety protection, while maintaining good compatibility with existing network infrastructure and construction practices.

[0022] Figure 1 This is a schematic diagram illustrating an application scenario of a POE-based power output system according to some embodiments of this specification.

[0023] In some embodiments, such as Figure 1 As shown, the application scenario 100 of the PoE-based power output system (hereinafter referred to as the system) may include a Power over Ethernet device 110, a load device 120, a processor 130, a network 140, a storage device 150, and a user terminal 160.

[0024] The Power over Ethernet (PoE) device 110 is used to simultaneously provide DC power and data connectivity over an Ethernet line. The PoE device 110 includes PoE switches or PoE power supplies, etc. As an example only, the PoE device 110 supports standards such as IEEE 802.3 af / at / bt and can have functions such as PD detection, classification, power-on / power-off control, and power negotiation (e.g., via LLDP or CDP).

[0025] In some embodiments, the Power over Ethernet (PoE) device 110 can collect and report power-related electrical parameters and port status information connected to the load device 120, such as: port power supply voltage, current, current instantaneous / cumulative power, power supply priority, link status, and abnormal conditions (such as fault codes for overcurrent, short circuit, overtemperature, undervoltage, etc.).

[0026] Load device 120 refers to a device powered via PoE. For example, load device 120 includes network speakers, IP cameras, home theater systems, projectors, wireless access points, access control terminals, sensors, etc. In some embodiments, load device 120 includes a PD control and power conversion module to adapt to the power supply and power distribution of different standard PoE devices 110.

[0027] In some embodiments, a feedback acquisition device may be arranged inside the load device 120 to collect and / or report feedback information related to the operation and power supply of the load device 120. For example, the feedback information includes input voltage / current / power, device temperature, link speed, abnormal conditions, startup / self-test results, etc. The feedback information can be uploaded to the processor 130 via the Ethernet data plane (e.g., based on LLDP, SNMP, Syslog, or a custom protocol), or read by the Power over Ethernet device 110.

[0028] In some embodiments, the processor 130 may process data and / or information acquired from the Power over Ethernet device 110, the load device 120, the network 140, the storage device 150, and / or the user terminal 160. For example, the processor may send operating data of the load device 120 to the user terminal 160.

[0029] In some embodiments, processor 130 may be a computer, a user console, a single processor, or a processor group, etc. For example, processor 130 may be located on load device 120. The processor group may be centralized or distributed. In some embodiments, processor 130 may be implemented on a cloud platform. For example, the cloud platform may include one or any combination of private cloud, public cloud, hybrid cloud, etc.

[0030] In some embodiments, one or more functional modules of the POE-based power output system may be partially or wholly integrated on the processor 130.

[0031] Network 140 can connect the various components of the system and / or connect the system to external resources. Network 140 enables communication between the components and with other parts outside the system, facilitating the exchange of data and / or information. In some embodiments, network 140 can be any one or more of wired or wireless networks. For example, network 140 can include cable networks, fiber optic networks, telecommunications networks, the Internet, local area networks (LANs), wide area networks (WANs), wireless local area networks (WLANs), metropolitan area networks (MANs), Bluetooth networks, ZigBee networks, near field communication (NFC), and any combination thereof. Network connections between components can be achieved using one or more of the above methods. For example, Power over Ethernet (PoE) device 110, load device 120, processor 130, and storage device 150 are interconnected via Ethernet and / or IP networks and communicate with user terminal 160 via a wireless network. Ethernet and / or IP networks can support Layer 2 / Layer 3 networks, VLANs, and security domain isolation, etc.

[0032] Storage device 150 is used to store data, instructions, and / or any other information. For example, the storage device may store the charge / discharge status monitored by the charge / discharge protection module.

[0033] Storage device 150 may include one or more storage components, each of which may be a separate device or part of another device. In some embodiments, storage device 150 may include random access memory (RAM), read-only memory (ROM), removable memory, and any combination thereof.

[0034] User terminal 160 may refer to one or more terminal devices used by a user. In some embodiments, user terminal 160 may be a mobile device such as a mobile phone, tablet computer, or laptop computer, or any combination thereof.

[0035] Users refer to personnel involved in the power supply management of load devices. This includes, for example, maintenance personnel or users of the load devices (such as speaker users). In some embodiments, the processor 130 may alert the user based on the power supply mode in response to a change in the power supply mode.

[0036] In some embodiments, in response to the system 200 detecting a power supply abnormality or physical fault in the load device 120, the processor 130 may issue a reminder to the user based on alarm information and may selectively trigger the Ethernet power supply device to perform automated handling strategies (such as derating power supply, port isolation, or timed recovery).

[0037] In some embodiments, the processor 130 may be configured to monitor the remaining power of the battery pack and determine the power supply mode based on the target output power of the load device, the maximum rated power of the POE power supply module, and the remaining power of the battery pack.

[0038] In some embodiments, the processor 130 is configured to monitor the charge and discharge status of the battery pack and disconnect the circuit connection of the battery pack when the charge and discharge status is abnormal.

[0039] In some embodiments, the processor 130 is configured to perform voltage conversion processing on the first DC power output from the POE power supply module and / or the second DC power output from the battery pack, and output the operating voltage required by the load device.

[0040] For more information on battery packs, PoE power modules, power supply modes, etc., please refer to [link / reference]. Figures 2 to 4 Related descriptions.

[0041] Figure 2 This is an exemplary block diagram of a power output system based on Power over Ethernet, as shown in some embodiments of this specification.

[0042] In some embodiments, such as Figure 2 As shown, the power output system 200 based on Power over Ethernet (hereinafter referred to as system 200) includes a PoE power supply module 210, a battery pack 220, a charge and discharge protection module 230, a voltage adjustment module 240, a power monitoring module 250, and a control module 260.

[0043] The PoE power supply module 210 is a module that supplies power to the load device 120. In some embodiments, the PoE power supply module 210 is configured to connect to the Power over Ethernet device 110 to receive electrical energy and output a first DC power.

[0044] In some embodiments, the PoE power supply module 210 can be connected to the external Power over Ethernet (PoE) device 110 in various ways. For example, the PoE power supply module 210 can handshake and negotiate power levels with the PoE device 110 (such as a PoE switch or PoE power supply) according to the PoE standard power supply protocol or a compatible non-standard power supply protocol, thereby receiving the required DC power from the Ethernet cable.

[0045] The first DC power supply refers to the DC power output by the PoE power supply module 210. In some embodiments, after receiving electrical energy, the PoE power supply module 210 processes the energy internally and outputs a stable DC power supply as the first DC power supply. For example, the PoE power supply module 210 can output DC power that conforms to a specific voltage range (such as 48VDC to 57VDC), and the maximum rated power output can be 100W to meet the PoE standard protocol.

[0046] For example, the PoE power supply module 210 continuously draws voltage and current from a PoE switch via a network cable. The maximum power supply capacity of a single PoE port on a PoE switch is typically 100W. When the power required by the load device is lower than the maximum rated power of the PoE power supply module (e.g., 100W), the system can use PoE power supply mode. The system can also process the first DC power supply through a voltage regulation module (e.g., a boost module) to achieve the voltage required by the load device, thus powering the load device.

[0047] Battery pack 220 refers to a module for storing electrical energy. In some embodiments, battery pack 220 is configured to store electrical energy received from PoE power supply module 210 and output a second DC power.

[0048] In some embodiments, the battery pack 220 comprises one or more rechargeable battery cells, such as lithium-ion batteries (Li-ion) or lithium iron phosphate batteries (LiFePO4), for storing electrical energy supplied by the POE power module 210. For example, the battery pack 220 may combine multiple battery cells in series or parallel to achieve the required total voltage and capacity.

[0049] The second DC power supply refers to the DC power output by the battery pack 220. In some embodiments, when the battery pack 220 is discharging, it outputs a DC power supply to the system as the second DC power supply. For example, the output voltage of the battery pack can be 24VDC, and the output power can provide an instantaneous power of well over 100W.

[0050] For example, processor 130 continuously monitors the target output power demand of a load device (such as a speaker). When the load device requires a higher power output than the PoE power supply module (e.g., 200W), processor 130 can determine to switch to a PoE- and battery-pack-based co-power supply mode based on the load device's target output power, the PoE power supply module's maximum rated power, and the remaining power of the battery pack. In co-power supply mode, processor 130 can instruct the battery pack to provide additional power (a second DC power supply).

[0051] In the collaborative power supply mode, the voltage regulation module can perform voltage transformation processing on the first DC power from the POE power supply module and the second DC power from the battery pack (for example, boosting the 24V battery voltage and the POE voltage to 65V) to meet the operating voltage and high power output required by the load device.

[0052] For example, the processor 130 continuously monitors the remaining battery power. Since the battery pack has limited capacity, it cannot provide high-power output for extended periods. When the processor 130 detects that the battery pack's power has dropped to a preset threshold, even if the load device is still in a high-power-demand state, the system intelligently forces the load device's output to a low-power mode (e.g., reducing it from 200W to 50W). In low-power mode, the PoE power supply module can continue to power the load device and can also charge the battery pack via a battery charger. This ensures rapid battery recovery and avoids service interruptions due to depleted power.

[0053] The charge / discharge protection module 230 refers to a module that protects the battery pack. In some embodiments, the charge / discharge protection module 230 is configured to monitor the charge / discharge state of the battery pack 220 and disconnect the circuit connection of the battery pack 220 when the charge / discharge state is abnormal.

[0054] The state of charge / discharge refers to the state of a battery pack during charging and discharging. For example, the state of charge / discharge includes normal and abnormal. An abnormal state of charge / discharge can refer to one or more abnormalities in the battery pack's voltage, charging / discharging current, and battery temperature.

[0055] In some embodiments, the charge / discharge protection module integrates a voltage sensor, a current sensor, and a temperature sensor to monitor the battery pack's voltage, charge / discharge current, and battery temperature in real time. For example, when the detected battery voltage is too high (overcharge), too low (over-discharge), too high (overcurrent), or the battery temperature is abnormal (over-temperature / under-temperature), the charge / discharge protection module will determine it to be in an abnormal state. For example, once an abnormality is detected, the charge / discharge protection module will immediately physically disconnect the battery pack from other circuits (such as charging circuits or discharging circuits) by controlling switching elements such as relays or field-effect transistors, thereby preventing damage to the battery pack and ensuring safety.

[0056] Voltage adjustment module 240 refers to a module that adjusts voltage. In some embodiments, voltage adjustment module 240 is configured to perform voltage conversion processing on a first DC power supply and / or a second DC power supply to output the operating voltage required by the load device 120.

[0057] In some embodiments, the voltage adjustment module 240 may be a boost converter for boosting the input voltage to a higher output voltage. For example, the voltage adjustment module initiates a boost operation when the first DC power supply (such as 50V provided by POE) or the second DC power supply (such as 24V provided by a battery pack) is lower than the operating voltage required by the load device (such as 65V). For example, the voltage adjustment module 240 may employ pulse width modulation technology to precisely control the voltage conversion process. In some embodiments, the output voltage of the voltage adjustment module 240 is set to the operating voltage of the load device (such as an audio amplifier), for example, 65V. The voltage adjustment module may also include a buck converter, a buck-boost converter, etc.

[0058] The power monitoring module 250 refers to a module that monitors the remaining power of the battery pack 220. In some embodiments, the power monitoring module 250 is configured to monitor the remaining power of the battery pack.

[0059] In some embodiments, the power monitoring module 250 can monitor the remaining power of the battery pack in various ways. For example, it can monitor the remaining power of the battery pack using coulomb counting. Another example is estimating the remaining power by monitoring the voltage of the battery pack and combining it with a preset voltage-power lookup table or the battery's open-circuit voltage curve. Yet another example is using a fuel gauge chip or a machine learning-based model to predict battery life and remaining power.

[0060] The control module 260 is used to determine the operating parameters of the system 200, such as the power supply mode and supplementary power. The control module 260 can be a microcontroller (MCU) or a microprocessor (MPU).

[0061] In some embodiments, the control module 260 is configured to determine the power supply mode based on the target output power of the load device 120, the maximum rated power of the POE power supply module 210, and the remaining power of the battery pack 220.

[0062] For more information on the PoE power supply module 210, battery pack 220, charge / discharge protection module 230, voltage regulation module 240, power monitoring module 250, and control module 260, please refer to [link to relevant documentation]. Figures 3-4 Related descriptions.

[0063] In some embodiments, system 200 further includes a power detection module. The power detection module is configured to monitor the real-time output power supplied to the load device.

[0064] For example, the power detection module can collect the real-time output power of the load device at multiple moments (N) within a historical period, calculate the difference between the real-time output power of the load device and the target output power, count the number of moments (M) where the difference is greater than a preset power threshold, and calculate the proportion of abnormal moments (M÷N×100%). If the proportion of abnormal moments is greater than the proportion threshold, an abnormal warning is generated. The control module 260 can send the abnormal warning to the user terminal 160 via the network 140. After receiving the abnormal warning, the user can actively adjust the power supply mode through the user terminal 160. In some embodiments, the system can automatically control the switching of the power supply mode.

[0065] In some embodiments, when the battery pack charge reaches a set level via the PoE power supply module, the processor 130 can generate a prompt message and push it to the user via the user terminal 160 (e.g., through a mobile app). For example, the prompt message might be: "You can now reselect the high-power output mode. Please confirm whether to adjust the power of the load device back to high-power output."

[0066] It should be understood that Figure 2 The system and its modules shown can be implemented in various ways.

[0067] It should be noted that the above description of system 200 and its modules is for convenience only and should not be construed as limiting this specification to the scope of the illustrated embodiments. It is understood that those skilled in the art, after understanding the principles of this system, may arbitrarily combine the various modules or construct subsystems connected to other modules without departing from these principles. In some embodiments, Figure 2The PoE power supply module 210, charge / discharge protection module 230, voltage adjustment module 240, power monitoring module 250, and control module 260 disclosed herein can be different modules within a single system, or a single module can perform the functions of two or more of the aforementioned modules. For example, the modules can share a single storage module, or each module can have its own separate storage module. Such variations are all within the scope of protection of this specification.

[0068] Figure 3 This is an exemplary flowchart illustrating a control method according to some embodiments of this specification. Figure 3 As shown, process 300 includes the following steps 310-320.

[0069] Step 310: Monitor the remaining battery power of the battery pack. In some embodiments, step 310 may be performed by the power monitoring module 250.

[0070] In some embodiments, the remaining power capacity includes a first remaining power capacity and a second remaining power capacity; for more details, please refer to step 320 and... Figure 4 Related descriptions.

[0071] For more information on how to monitor the remaining battery power, please refer to [link / reference]. Figure 2 And its related descriptions.

[0072] Step 320: Determine the power supply mode based on the target output power of the load device, the maximum rated power of the PoE power supply module, and the remaining power of the battery pack. In some embodiments, step 320 may be executed by the control module 260 or the processor 130.

[0073] In some embodiments, the power supply mode includes a PoE power supply mode and a PoE-based and battery pack-based collaborative power supply mode.

[0074] Power supply mode refers to the power supply strategy or path adopted by the system under different operating conditions. The power supply mode determines the source of electrical energy required by the load equipment and how it is distributed.

[0075] Target output power refers to the power required for the load device to operate. The target output power can be configured by the user through a user terminal or device interface, or automatically reported and determined by the load device based on its service status (such as different operating modes). For example, if the load device is a loudspeaker, multiple target output power values ​​can be preset for different operating modes (such as different sound pressure levels or settings).

[0076] The maximum rated power of a PoE power supply module refers to the upper limit of power that the PoE power supply module can stably extract and continuously output from an external Power over Ethernet (PoE) device, under conditions that comply with the PoE standard protocol or compatible non-standard power supply protocols. For example, the maximum rated power of a PoE power supply module can be 100W.

[0077] PoE power supply mode refers to a working mode in which only the PoE power supply module supplies power to the system, and the battery pack does not participate in the discharge power supply.

[0078] In some embodiments, the PoE power supply mode is determined when the target output power P1 is less than the maximum rated power Pmax of the PoE power supply module. For example, when the target output power of the load device (e.g., 60W) is less than or equal to the maximum rated power of the PoE power supply module (e.g., 100W), the control module will select the PoE power supply mode. In PoE power supply mode, the load device is powered solely by the PoE power supply module. If the battery pack is not fully charged at this time, the PoE power supply module will use a portion of the energy beyond the power required by the load device to charge the battery pack.

[0079] Cooperative power supply mode refers to the operating mode in which the PoE power supply module and the battery pack jointly supply power to the system. Cooperative power supply mode can meet the load requirements exceeding the maximum rated power of the PoE power supply module.

[0080] In some embodiments, the power supply mode also includes a battery pack power supply mode. Battery pack power supply mode refers to an operating mode in which the load device is powered solely by the battery pack.

[0081] In some embodiments, the control module can determine the power supply mode as battery pack power supply mode in multiple ways. In some embodiments, when the maximum rated power Pmax of the PoE power supply module is less than a first threshold and the remaining battery charge is greater than a second threshold, the system is determined to be in battery pack power supply mode. For example, the first threshold can be 20% of the maximum rated power Pmax, and the second threshold can be 60% of the battery pack's full charge. In some embodiments, the system is determined to be in battery pack power supply mode when the PoE power supply module meets preset power-off conditions. Preset power-off conditions may include an abnormality in the PoE power supply module, or the user actively disconnecting the PoE power supply module.

[0082] The battery pack power supply mode can be used in scenarios where the PoE power supply module is abnormal, requires maintenance, or requires emergency power outage protection (such as thermal failure, large voltage fluctuations, etc.), thereby protecting the PoE power supply module and ensuring that the load device is not powered.

[0083] In some embodiments, the control module determines the power supply mode based on the target output power P1 of the load device, the maximum rated power Pmax of the POE power supply module, and the remaining power of the battery pack.

[0084] In some embodiments, when the target output power P1 is greater than the maximum rated power Pmax of the POE power supply module, a cooperative power supply mode is determined.

[0085] In some embodiments, when the target output power P1 is greater than the maximum rated power Pmax of the PoE power supply module, and the remaining charge E0 of the battery pack is determined to be sufficient to provide the power difference, a cooperative power supply mode is established. The power difference is the difference between the target output power P1 and the maximum rated power Pmax. When there is only one battery pack, the remaining charge E0 of the battery pack refers to the remaining charge of that battery pack (hereinafter referred to as the first remaining charge); when there are multiple battery packs, the remaining charge E0 of the battery pack refers to the sum of the first remaining charges of the multiple battery packs.

[0086] In some embodiments, if the target output power P1 (e.g., 200W) is greater than the maximum rated power of the POE power supply module (e.g., 100W) and the remaining power E0 of the battery pack is higher than a preset power threshold (e.g., 20%), the control module will determine the cooperative power supply mode.

[0087] In the collaborative power supply mode, the POE power supply module and the battery pack simultaneously provide power to the load device. The POE power supply module continuously provides its maximum rated power, and the insufficient part is supplemented by the battery pack through the voltage regulation module, so that the load device can obtain instantaneous high power output far exceeding the maximum rated power of the POE power supply module (such as 100W).

[0088] In some embodiments, when the remaining charge E0 of the battery pack is insufficient to provide the power difference, the control module limits the target output power of the load device to no more than the maximum rated power Pmax of the POE power supply module and determines the power supply mode as POE power supply mode.

[0089] In some embodiments, in response to a cooperative power supply mode, among multiple battery packs, a target battery pack supplies power to the load device. The target battery pack refers to a battery pack with a first remaining charge not lower than a first charge threshold and in normal operating condition. The first remaining charge refers to the remaining charge of a single battery pack. When the first remaining charge of a battery pack is lower than the first charge threshold, that battery pack does not participate in discharging power. Typically, there is a positive correlation between the first remaining charge of a battery pack and its first rated power; as the first remaining charge decreases, the battery's internal resistance tends to increase and its open-circuit voltage decreases, thereby reducing its first rated power. The first rated power refers to the upper limit of the continuous and stable output power provided by a single battery pack.

[0090] In some embodiments, the control module can obtain the first remaining power of each battery pack through the power monitoring module. The control module compares the first remaining power of each battery pack with a preset first power threshold. For example, if the first remaining power of a battery pack is lower than the first power threshold (e.g., 20%), that battery pack is not selected as the target battery pack. If its first remaining power is not lower than the first power threshold and it is in normal operating condition, then it is identified as the target battery pack.

[0091] In some embodiments, the first power threshold of different target battery packs in at least one target battery pack may be different, and the first power threshold is positively correlated with the internal impedance of the corresponding target battery pack.

[0092] The first power threshold refers to the minimum remaining power of a single battery pack that is allowed to participate in discharging and supplying power. When the first remaining power of a battery pack falls below the corresponding first power threshold, the battery pack stops discharging and supplying power.

[0093] Internal impedance refers to the degree to which the battery pack impedes the flow of current. Internal impedance changes with aging, temperature, and charge level.

[0094] As the number of battery pack cycles increases and time passes (aging), the internal impedance gradually increases. For example, when the battery pack is in a low-temperature environment (such as when the initial remaining charge is below 10-20%), the internal impedance will increase significantly.

[0095] In some embodiments, the internal impedance of the battery pack can be determined in a variety of ways, such as by measuring DC internal resistance.

[0096] In some embodiments, as the internal impedance of the battery pack increases, the control module controls the corresponding first charge threshold to increase monotonically. For example, for a new battery pack with low internal impedance, the first charge threshold can be set to 10%; for an aged battery pack with high internal impedance, the first charge threshold can be adjusted to 20% or higher. Adjusting the first charge threshold can prevent the voltage of an aged battery pack from dropping below the system shutdown voltage due to high current discharge at low charge levels.

[0097] For example, the control module can query a preset impedance-threshold mapping table or use an empirical formula to determine the first charge threshold. The system can periodically measure or estimate the internal impedance of each target battery pack and update its first charge threshold accordingly. In some embodiments, the first charge threshold can also be dynamically adjusted by combining a comprehensive assessment with the battery's health status.

[0098] Some embodiments in this specification set a first charge threshold positively correlated with the internal impedance to prevent voltage drops caused by low-charge, high-current discharge of aging batteries, thereby improving the stability, efficiency, and lifespan of multi-battery pack collaborative discharge.

[0099] In some embodiments, in addition to the first charge threshold, the control module can also combine parameters such as state of health (SOH) or internal resistance to screen target battery packs. For multiple battery packs, the control module can set different first charge thresholds and, in conjunction with the battery health data provided by the charge / discharge protection module, preferentially select the battery pack with the highest remaining charge and the best health status.

[0100] In some embodiments, the target battery pack can also be determined based on factors such as battery equalization discharge strategies, cycle count limits, or dynamic load prediction. For example, to equalize battery cycle life, the control module can use polling or prioritize battery packs with fewer cumulative discharge cycles as target battery packs.

[0101] In some embodiments, the control module determines the maximum output power currently available for each target battery pack based on a preset "first remaining power - maximum output power" mapping relationship (e.g., given by a calibration curve or lookup table). The control module sums the maximum output power currently available for each target battery pack to obtain a power sum. The power sum can be represented by P2.

[0102] In some embodiments, the control module can determine the power and the difference between P2 and the power difference (P1−Pmax), and compare the difference with a preset power threshold: if the difference is greater than the power threshold, it is determined that the remaining capacity E0 of the battery pack is sufficient to provide the power difference; otherwise, it is determined that it is insufficient to provide the power difference. For example, when (P1−Pmax)>0, it is determined to be in cooperative mode; when P2−(P1−Pmax)>0, it is further determined that the remaining capacity E0 of the battery pack is sufficient to provide the power difference.

[0103] In some embodiments, the control module may also use decision logic based on rule engines, finite state machines, fuzzy control algorithms or other optimization algorithms to dynamically determine the power supply mode.

[0104] In some embodiments, the control module can provide feedback to the user on information such as the power supply mode and the remaining battery power, and receive user commands. For example, when the remaining battery power is low, the system automatically switches to PoE power supply mode and sends a message to remind the user. As another example, when the remaining battery power is full, the system can send a message to notify the user, at which point it can switch to cooperative power supply mode.

[0105] In some embodiments, the control module may also send a power supply mode switching request to the user, who can then choose whether to switch the power supply mode.

[0106] Some embodiments in this specification, by monitoring the remaining power of the battery pack and determining the power supply mode based on the target output power of the load device, the maximum rated power of the PoE power supply module, and the remaining power of the battery pack, can achieve intelligent control of the power supply. This effectively overcomes the maximum power supply limitation of traditional PoE, enabling coordinated power supply between PoE and the battery pack to support the high-power (e.g., 200W) operation requirements of the load device. Furthermore, this power supply mode determination method optimizes energy management, ensures battery safety and lifespan, improves the system's adaptability and reliability to high-power devices, and provides intelligent feedback to enhance the user experience.

[0107] In some embodiments, process 300 may further include steps 330-340. In some embodiments, step 330 may be performed by the charge / discharge protection module, and step 340 may be performed by the voltage adjustment module.

[0108] Step 330: Monitor the charging and discharging status of the battery pack, and disconnect the circuit connection of the battery pack when the charging and discharging status is abnormal.

[0109] By monitoring the charging and discharging status of the battery pack, the connection between the battery pack and other circuits (such as charging or discharging circuits) can be physically disconnected when an abnormality is detected, thereby preventing damage to the battery pack and ensuring safety.

[0110] It should be noted that the execution order of step 330 is not affected by... Figure 3 The limitation could also be before step 320, or at any other possible time. For example, the voltage regulation module could continuously monitor the charge / discharge status of the battery pack. Or, for another example, the voltage regulation module could monitor the charge / discharge status of the battery pack while it is being charged and discharged.

[0111] Step 340: Perform voltage conversion processing on the first DC power output from the POE power supply module and / or the second DC power output from the battery pack to output the operating voltage required by the load device.

[0112] By performing voltage transformation on the first DC power supply and / or the second DC power supply, the output power can meet the power requirements of the load equipment, thereby providing a stable power supply to the load equipment.

[0113] For more information on steps 330 and 340, please refer to [link / reference]. Figure 2 Description.

[0114] It should be noted that the above description of process 300 is for illustrative purposes only and does not limit the scope of this specification. Those skilled in the art can make various modifications and changes to process 300 under the guidance of this specification. However, these modifications and changes remain within the scope of this specification.

[0115] In some embodiments, the control module is configured to execute power distribution and output control logic for PoE and the battery pack when the power supply mode is determined to be a cooperative power supply mode.

[0116] In some embodiments, the power allocation between PoE and the battery pack can be determined based on a first preset lookup table. For example, the first preset lookup table includes the target output power of the load device, the maximum rated power of the PoE power supply module, the remaining charge of the battery pack, and the corresponding power allocation values ​​for PoE and the battery pack. The first preset lookup table can be constructed by a technician based on experience.

[0117] In some embodiments, the response of power distribution and output control can be implemented through software interrupts, event-driven mechanisms, or state machine transitions. For example, the control module can continuously monitor the power supply mode status and activate the corresponding handler when the state switches to a cooperative power supply mode.

[0118] In some embodiments, when the power supply mode is a cooperative power supply mode, the control module is configured to execute the method shown in flow 400.

[0119] Figure 4 This is an exemplary flowchart illustrating a control method according to some embodiments of this specification. Figure 4 As shown, process 400 includes the following steps 410-440.

[0120] In some embodiments, process 400 may also be executed by processor 130.

[0121] Step 410: Determine the safe power of the POE power supply module based on its maximum rated power and operating parameters.

[0122] Safe power refers to the upper limit of actual output power after reserving a certain safety margin based on the maximum rated power determined by the PoE power supply protocol. Setting safe power can ensure the long-term stability of the system and prevent triggering the overcurrent protection of the PoE power supply equipment.

[0123] In some embodiments, the control module determines the safe power by querying a second preset lookup table. For example, the second preset lookup table may store the mapping relationship between the maximum rated power, operating parameters, and corresponding safe power of different PoE power supply modules. The control module obtains the maximum rated power (Pmax) and operating parameters of the current PoE power supply module and determines the safe power P3 by looking up the data in the second preset lookup table. Operating parameters may include years of operation, historical fault records, or mean time between failures (MTBF). The second preset lookup table may be constructed by technical personnel based on experience. For example, the safe power P3 is positively correlated with the maximum rated power Pmax, while the safe power P3 is negatively correlated with years of operation and the number of faults.

[0124] In some embodiments, the method for determining safe power may include, but is not limited to, fuzzy logic control, expert system rule reasoning, or neural network-based prediction models. For example, the system can train a model based on historical operating data to predict the reasonable safe power required to maintain the performance and lifespan of the PoE power supply module under different operating conditions.

[0125] The safety power can be adjusted in real time. For example, when the maximum rated power and / or operating parameters of the PoE power supply module change, the safety power can also be adjusted accordingly.

[0126] In some embodiments, the control module is configured to acquire network quality parameters of the load device; when the network quality parameters meet preset network conditions, the safe power is reduced.

[0127] Network quality parameters are indicators that reflect network connectivity performance. Examples of network quality parameters include packet loss rate, bit error rate, negotiation rate, and signal-to-noise ratio.

[0128] In some embodiments, the control module can obtain network quality parameters of the load device in various ways. For example, the control module can monitor the network connection status in real time through a system-integrated network interface chip or a dedicated network monitoring module, and extract network quality parameters from it. For Ethernet connections, the control module can obtain information such as packet loss rate and bit error rate by reading MII / RMII status information or statistical counters in the Ethernet controller register. The negotiated rate can be obtained directly through the interface status register.

[0129] In some embodiments, the control module may periodically query network statistics of its ports from connected Power over Ethernet (PoE) devices (such as PoE switches) or load devices via network management protocols (such as SNMP). For example, the load device or PoE switch may report error frame counts, packet loss counts, and currently negotiated connection rates for its interfaces.

[0130] In some embodiments, network quality parameters can also be obtained through other means. For example, network quality parameters can be evaluated by analyzing network traffic characteristics, monitoring data transmission latency, or jitter, among other indirect indicators.

[0131] Network preset conditions refer to preset indicators for judging whether network quality has degraded. For example, when at least one of the following occurs, the network quality parameters are considered to meet the network preset conditions: packet loss rate exceeds a preset packet loss rate threshold, bit error rate exceeds a preset bit error rate threshold, or negotiation rate is lower than a preset rate threshold.

[0132] In some embodiments, the control module continuously compares the acquired network quality parameters with preset network preset conditions. For example, if the monitored packet loss rate continuously exceeds a preset packet loss rate threshold of 1% for a period of time (e.g., within 5 seconds); or if the negotiation rate of the Ethernet interface drops from 1Gbps to 100Mbps, which is lower than the preset rate threshold of 600Mbps, then the network quality parameters are determined to meet the preset network conditions. Alternatively, whether the preset network conditions are met can be determined by a combination of multiple network quality parameters. For example, when the packet loss rate exceeds a preset packet loss rate threshold and the bit error rate exceeds a preset bit error rate threshold, the network quality parameters are determined to meet the preset network conditions.

[0133] In some embodiments, determining whether network quality parameters meet preset network conditions can also be done in other ways. For example, network quality parameters can be comprehensively evaluated using expert system rule reasoning or fuzzy logic to predict network health status and determine whether preset network conditions are met.

[0134] In some embodiments, the control module gradually reduces the safe power of the PoE power supply module according to preset power steps (e.g., reducing by 5W or 10% of the maximum rated power of the PoE power supply module each time). For example, if the initial safe power is 90W, the first adjustment reduces it to 85W, and then network quality is monitored. If the network quality still does not recover, the safe power continues to be reduced until the network quality parameters return to the normal range.

[0135] In some embodiments, the control module can directly reduce the safety power to the power value corresponding to a lower level in the Power over Ethernet (PoE) standard. For example, if the system supports IEEE 802.3bt, the maximum rated power of the PoE module may be 90W. When network quality degrades, the control module can directly reduce its safety power to 30W as defined by the IEEE 802.3at standard to prioritize the signal-to-noise ratio of data transmission.

[0136] The control module will use the reduced safe power as the upper limit of the POE power supply module's output, and allocate the resulting power gap (i.e. the difference between the target output power of the load device and the new safe power) to one or more target battery packs to ensure the continuous normal operation of the load device.

[0137] In some embodiments, the strategy for reducing security power can also be adjusted in other ways. For example, the step size or backoff level can be dynamically selected based on the severity and duration of network quality degradation. The control module can also employ adaptive control algorithms, finite state machines, or optimization algorithms to optimize the security power adjustment strategy.

[0138] In some embodiments, when a network quality degradation is detected, the control module determines that the current PoE output power may be too high, and then actively reduces the safe power of the PoE power supply module to reduce the burden on the PoE power supply module, and uses the battery pack for power compensation, thereby restoring the stability of network communication while maintaining normal load operation.

[0139] The system in some embodiments of this specification effectively avoids problems such as cable temperature rise, magnetic saturation, and electromagnetic interference that may be caused by high-power PoE output by dynamically reducing the safe power of the PoE power supply module when the network quality of the load device deteriorates in real time. This not only ensures the stability and reliability of Ethernet data transmission and improves the overall operating quality of the system in high-power collaborative power supply scenarios, but also ensures that the load device can still obtain the required power by transferring the power gap to the battery pack, thus meeting the dual needs of power supply and network communication.

[0140] Step 420: Based on the first remaining power and the first power threshold, determine at least one target battery pack from the battery pack.

[0141] For more information on the first remaining battery capacity, the first battery capacity threshold, the target battery pack, and determining the target battery pack, please see [link to relevant documentation]. Figure 3 Description.

[0142] Step 430: Determine the supplementary power based on the target output power of the load device and the safe power of the POE power supply module.

[0143] Supplemental power refers to the power that the system needs to supplement from the target battery pack in cooperative power supply mode, in addition to the safe power provided by the PoE power supply module. Supplemental power Pdiff = Target output power P1 − Safe power P3.

[0144] In some embodiments, the control module determines the supplementary power according to a preset calculation formula. For example, the supplementary power Pdiff is equal to the target output power P1 of the load device minus the safe power P3 of the PoE power supply module, i.e., Pdiff = P1 − P3.

[0145] For example, when determining the supplementary power, the control module can perform boundary condition checks. When the calculated value is negative, the supplementary power is set to 0W, indicating that the battery pack does not need to be discharged. In some embodiments, losses such as voltage conversion efficiency can also be considered and compensation terms can be added to the calculation.

[0146] In some embodiments, an efficiency factor can be incorporated into the calculation of supplementary power. Taking the efficiency η of the voltage regulation module as an example, the actual supplementary power can be expressed as Pdiff=(P1 / η)−P3. η can be obtained through calibration or adaptively updated during operation.

[0147] Step 440: Control the POE power supply module to output safe power and control the target battery pack to output supplementary power.

[0148] In some embodiments, the control module sends control commands to the PoE power supply module to ensure a stable output at a safe power of P3. The PoE power supply module then outputs a first DC power supply. For example, the control module can adjust the DC-DC converter or power output stage within the PoE power supply module to ensure that its first DC power output reaches the safe power of P3.

[0149] Simultaneously, the control module can instruct and control the target battery packs to discharge based on the differential power Pdiff determined in step 430 and the discharge parameters determined for each target battery pack, in order to provide the required supplementary power Pdiff. The target battery packs thus output a second DC power. For example, the control module, through the charge / discharge protection module, enables the target battery packs to start discharging according to the supplementary power, outputting a second DC power. Alternatively, the control module, through the charge / discharge protection module, enables the target battery packs to start discharging and adjusts the discharge current and voltage of each target battery pack, thereby ensuring that each battery pack outputs power according to its share.

[0150] During the coordinated power supply process, both the first DC power output from the PoE power supply module and the second DC power output from the target battery pack are transformed by a voltage regulation module to meet the operating voltage requirements of the load device. By superimposing the first DC power output from the PoE power supply module and the second DC power output from the target battery pack, the system successfully provides the target output power required by the load device.

[0151] For more information about the voltage regulation module, please see [link / reference]. Figure 2 Description.

[0152] In some embodiments, the control module is further configured to: allocate a corresponding power share to each of at least one target battery pack according to the proportion of the first remaining power to the second remaining power of all target battery packs; determine the discharge parameters of the target battery pack based on the power share; and control at least one target battery pack to supply power according to the corresponding discharge parameters.

[0153] The second remaining capacity refers to the sum of the first remaining capacity of each target battery pack in all target battery packs.

[0154] Shared power refers to the power that each target battery pack needs to share when supplying power to the load device.

[0155] In some embodiments, the control module allocates corresponding power sharing to each target battery pack based on the proportion of its first remaining capacity to the second remaining capacity of all target battery packs, combined with supplementary power. The control module multiplies the proportion corresponding to each target battery pack by the supplementary power Pdiff to determine the power sharing of each target battery pack. For example, if the system has N target battery packs with their first remaining capacities E1, E2, ..., EN, then the second remaining capacity Ex = ΣEi. For the i-th target battery pack, its power sharing Pi = (Ei / Ex) × Pdiff.

[0156] In some embodiments, in addition to allocating power based on the remaining capacity ratio, the control module can also comprehensively consider factors such as the health status, cycle life, and internal temperature of each target battery pack. For example, for a battery pack with poor health or high temperature, its power share can be appropriately reduced to avoid excessive stress or thermal runaway, thereby extending battery life and improving safety.

[0157] In some embodiments, power sharing can also be performed in other ways. For example, more refined load balancing and energy management can be achieved through preset power allocation algorithms, dynamic weighting strategies, or adaptive control algorithms.

[0158] In some embodiments, the control module determines the discharge parameters of each target battery pack based on the shared power.

[0159] In some embodiments, the discharge parameters include the target discharge current of the target battery pack. The control module acquires the current battery terminal voltage of each target battery pack in real time, divides the power shared by each target battery pack by the corresponding current battery terminal voltage, and obtains the target discharge current of that target battery pack. The current battery terminal voltage refers to the actual measured voltage value between the two terminals (positive and negative) of the battery pack.

[0160] For example, if a target battery pack has a power share of 50W and its current battery terminal voltage is 24V, then its target discharge current is approximately 2.08A.

[0161] In some embodiments, when determining the target discharge current, the control module can also compensate for voltage drops during the discharge process. For example, the control module can refer to the method for determining internal impedance to estimate the voltage drop under high-current discharge and incorporate this factor into the determination process of the target discharge current to improve the accuracy of the output power. For more information on methods for determining internal impedance, please refer to [link to relevant documentation]. Figure 3 Description.

[0162] In some embodiments, the control module continuously monitors the real-time target output power of the load device and dynamically adjusts the output of the safe power P3 of the PoE power supply module and the supplementary power Pdiff of the target battery pack based on the actual output of the PoE power supply module and the discharge capacity of the target battery pack, to ensure that the sum of the two always meets the target output power of the load device. For example, when the real-time target output power temporarily decreases, the control module prioritizes reducing the discharge power of the target battery pack and prioritizes power supply from the PoE power supply module to reduce battery pack consumption.

[0163] In some embodiments, output power control can also be achieved through other power management strategies, such as predictive control, fuzzy control, or adaptive control algorithms, to optimize power distribution, improve system efficiency, and extend battery life.

[0164] Some embodiments in this specification use the safe power and usage parameters of the POE power supply module for limit control, combined with target battery pack screening based on remaining power (such as the first remaining power) and power threshold (such as the first power threshold), and calculate supplementary power to achieve coordinated power supply. This avoids overheating or aging caused by prolonged full load, reduces unnecessary battery discharge, and improves power supply reliability and energy efficiency under high power conditions.

[0165] In some embodiments, the control module is configured to: determine the abnormal situation of the POE power supply module in the future period based on the voltage and current sequence of the first DC power output by the POE power supply module within a preset period, the temperature sequence of the POE power supply module, and the physical environment parameter sequence, using an anomaly prediction model, wherein the anomaly prediction model is a machine learning model; and adjust the power supply mode to battery pack power supply mode when the abnormal situation meets the preset abnormal conditions.

[0166] A preset time period refers to a past period of time used to collect data for anomaly prediction, such as the past hour, day, or week.

[0167] Voltage sequence and current sequence refer to the sequence of voltage and current of the POE power supply module at multiple moments within a preset time period.

[0168] The temperature sequence of a POE power supply module refers to a sequence of the operating temperatures of the POE power supply module at multiple moments within a preset time period.

[0169] A physical environment parameter sequence refers to a sequence of environmental data surrounding the system. For example, a physical environment parameter sequence includes a sequence of multiple parameters at multiple points in time. For instance, a physical environment parameter sequence includes a sequence of environmental temperature, humidity, etc., at multiple points within a preset time period.

[0170] In some embodiments, the control module acquires these sequence data through various sensors and detection units integrated into the system.

[0171] For example, a PoE power supply module integrates a voltage detection unit and a current detection unit; a temperature sensor is located on the circuit board of the PoE power supply module or near key power devices; and ambient temperature and humidity sensors are installed inside or outside the equipment housing to acquire real-time data such as voltage, current, temperature, and physical environmental parameters. Alternatively, the system can indirectly obtain voltage, current, and temperature information by analyzing the internal diagnostic registers of the PoE power supply module.

[0172] Then, the control module can extract specific data corresponding to multiple moments within a preset time period to form corresponding sequence data.

[0173] An abnormal situation refers to an adverse condition that may occur in a PoE power supply module. Abnormal situations can include the type of abnormality and its probability of occurrence. Abnormal types include thermal failures, electrical performance degradation, line connection faults, or environmental stress risks, etc.

[0174] Thermal faults refer to abnormalities caused by temperature increases. For example, thermal faults include abnormal temperature rise rates of PoE power supply modules, heat dissipation failures, or impending thermal runaway.

[0175] Electrical performance degradation refers to abnormalities caused by electrical performance issues. For example, electrical performance degradation includes increased output voltage ripple, decreased load capacity, or abnormal voltage drops due to aging of filter capacitors.

[0176] Line connection faults refer to abnormalities caused by line faults. Examples of line connection faults include transient voltage fluctuations or intermittent disconnections due to poor contact.

[0177] Anomalies in environmental stress refer to abnormalities caused by environmental stress. For example, anomalies in environmental stress may include a decrease in insulation performance or condensation short circuits that may occur under high humidity conditions.

[0178] An anomaly prediction model is a model used to determine abnormal situations of a PoE power supply module in the future. In some embodiments, the anomaly prediction model can be a machine learning model. The anomaly prediction model can be a classification model, such as a Support Vector Machine (SVM) or a Convolutional Neural Network (CNN).

[0179] In some embodiments, the inputs to the anomaly prediction model may include the voltage and current sequences of the first DC power output by the POE power supply module within a preset time period, the temperature sequence of the POE power supply module, and the sequence of physical environment parameters. The output may include anomalies of the POE power supply module in future time periods.

[0180] In some embodiments, the anomaly prediction model can be acquired through training. Training samples may include the voltage and current sequences of the first DC power output from the sample PoE power supply module within a first historical time period, the temperature sequence of the PoE power supply module within the first historical time period, and the sequence of physical environment parameters within the first historical time period. Labels can represent actual anomalies of the training samples within a second historical time period. The first historical time period is prior to the second historical time period.

[0181] Training samples can be obtained from historical data, including normal operation data and data from known anomalies. Labels can be generated based on anomalies within a second historical time period, or they can be manually labeled.

[0182] In some embodiments, the label can be determined based on the actual anomaly of the training sample in the second historical time period. For example, if the training sample is in a normal state in the second historical time period, the label is set to 0; if it is in an abnormal state, the label is set to 1.

[0183] In some embodiments, multiple labeled training samples can be input into an initial anomaly prediction model. A loss function is constructed using the labels and the results of the initial anomaly prediction model. Based on the loss function, the parameters of the initial anomaly prediction model are iteratively updated using gradient descent or other methods. Model training is complete when preset conditions are met, resulting in a trained anomaly prediction model. These preset conditions may include loss function convergence, the number of iterations reaching a threshold, etc.

[0184] In some embodiments, the input to the anomaly prediction model further includes physical characteristic parameters of the Ethernet cable, including at least one of DC loop resistance and resistance imbalance.

[0185] The physical characteristics of Ethernet cables refer to the electrical parameters used to evaluate the power supply performance and security of Ethernet cables.

[0186] DC loop resistance refers to the total resistance of the power supply loop in an Ethernet cable. For example, it's the total resistance between the two conductors within an Ethernet cable pair. DC loop resistance can be used to evaluate cable material and the contact quality of the RJ45 connector contacts.

[0187] Resistance imbalance refers to the percentage difference in resistance between two conductors within the same Ethernet cable pair or between different pairs. Resistance imbalance can be used to predict the risk of transformer magnetic saturation and uneven heating.

[0188] For example, DC loop resistance reflects the overall cable loss and connection quality. An abnormally high DC loop resistance may indicate cable aging or loose connectors, both of which can lead to decreased power supply efficiency and increased heat generation. As another example, resistance imbalance can indicate the health of the internal wire pairs in a cable. Excessive resistance imbalance can cause magnetic saturation of the transformer inside the PoE power supply module or uneven current distribution across different wire pairs, resulting in localized overheating.

[0189] In some embodiments, the control module may acquire the physical characteristic parameters of the Ethernet cable through one or more of the following methods. For example, it may acquire them using protocol interaction, chip diagnostics, or cable impedance measurement circuits.

[0190] In some embodiments, when the input to the anomaly prediction model includes the physical characteristic parameters of the Ethernet cable, the corresponding training samples also include the physical characteristic parameters of the sample Ethernet cable within a first historical time period.

[0191] In some embodiments of this specification, anomaly prediction models are used to determine anomalies in the PoE power supply module in future time periods. This fully utilizes the learning and adaptive capabilities of machine learning models, resulting in more accurate anomaly predictions. Furthermore, the inputs to the anomaly prediction model include the physical characteristic parameters of the Ethernet cable, allowing for comprehensive consideration of the Ethernet cable's features and further enhancing the accuracy of anomaly predictions.

[0192] An abnormal preset condition refers to the condition that triggers a power supply mode adjustment. In some embodiments, the abnormal preset condition may include a probability threshold for the abnormal probability.

[0193] In some embodiments, the control module obtains the abnormal situation of the POE power supply module in the future time period from the anomaly prediction model. The abnormal situation includes the anomaly type and the corresponding anomaly probability in the future time period.

[0194] In some embodiments, the control module can compare the abnormal situation of the PoE power supply module in a future time period with the preset abnormal conditions to determine whether the preset abnormal conditions are met. For example, the control module can compare the abnormal probability output by the abnormal prediction model with a preset probability threshold. If the predicted abnormal probability is greater than or equal to the probability threshold, it is determined that the preset abnormal conditions are met.

[0195] In some embodiments, the abnormal preset conditions may also include judgment criteria for multiple factors such as the severity of the abnormality, the type of abnormality, or the duration of the abnormality.

[0196] When the pre-defined anomaly conditions also include other criteria (such as anomaly severity, anomaly type, or anomaly duration), the control module can compare the anomaly situation of the PoE power supply module in the future with each criterion in the pre-defined anomaly conditions to determine whether the pre-defined anomaly conditions are met. For example, if the predicted anomaly type is power overload and its severity reaches "high," or if a certain anomaly type is expected to last longer than the preset "safe duration," then even if the anomaly probability does not reach the highest threshold, it may still be judged as meeting the pre-defined anomaly conditions. Only when all criteria are met will the control module confirm that the pre-defined anomaly conditions have been met, thereby triggering the adjustment of the power supply mode.

[0197] In some embodiments, when an abnormal situation meets preset abnormal conditions, the control module immediately initiates a power supply mode switching process. For example, the control module sends a command to the PoE power supply module to suspend power supply or disconnect from the external Ethernet power supply device to protect the PoE power supply module from potential damage. Simultaneously, the control module activates the battery pack's discharge circuit and converts the second DC power output from the battery pack into the operating voltage required by the load device through the voltage adjustment module, thereby ensuring the continuous and stable operation of the load device.

[0198] In some embodiments, the power supply mode can be adjusted in a variety of ways. For example, the control module can switch the power supply path between the PoE power supply module and the battery pack by controlling a power switch.

[0199] In some embodiments, the probability threshold of the anomaly probability is negatively correlated with the second remaining charge of at least one target battery pack.

[0200] In some embodiments, the aforementioned negative correlation can be achieved through a preset lookup table, a relationship curve, or a dynamic adjustment algorithm. For example, the control module can maintain a mapping table or relationship curve of "second remaining battery power - probability threshold", and dynamically query and set the current probability threshold based on the real-time monitored total battery power.

[0201] For example, when the target battery pack has a high remaining charge (e.g., greater than 80%), the control module can adaptively lower the probability threshold (e.g., set it to 50%). This means lowering the threshold for handling abnormal situations in the PoE power supply module; even if the probability of an abnormality is not particularly high, the system tends to switch to battery pack power to better protect the PoE power supply module from potential damage.

[0202] For example, when the second remaining charge of the target battery pack is low (e.g., below 30%), the control module can adaptively increase the probability threshold (e.g., set it to 90%). This allows the system to switch more cautiously when the battery is low, avoiding premature battery depletion and prioritizing PoE power supply, unless the risk of PoE failure is extremely high and imminent.

[0203] In some embodiments of this specification, the system monitors the operating parameters, environmental parameters, and physical characteristics of the Ethernet cable of the PoE power supply module in real time. Utilizing a machine learning model, it accurately predicts potential anomalies and, based on dynamically adjusted probability thresholds, switches to battery power supply mode before a PoE module failure occurs. This improves the safety and reliability of the power supply system, effectively protects the PoE power supply module from damage, ensures continuous and stable operation of the load equipment, and avoids unexpected downtime caused by PoE power supply failures. Especially in high-risk or fully charged battery scenarios, it can respond more sensitively to potential risks, extending the lifespan of the PoE module and battery pack.

[0204] This specification provides one or more embodiments of a power output device based on Power over Ethernet (PoE). The power output device includes at least one memory and at least one processor. The at least one memory is used to store computer instructions, and the at least one processor executes the computer instructions or some of the instructions to implement a control method for the power output system.

[0205] This specification provides one or more embodiments of a computer-readable storage medium that stores computer instructions. When a computer reads the computer instructions from the storage medium, the computer executes a control method for a power output system.

[0206] The basic concepts have been described above. Obviously, for those skilled in the art, the detailed disclosure above is merely illustrative and does not constitute a limitation of this specification. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and corrections to this specification. Such modifications, improvements, and corrections are suggested in this specification and therefore remain within the spirit and scope of the exemplary embodiments described herein.

[0207] Furthermore, this specification uses specific terms to describe embodiments thereof. For example, "an embodiment," "one embodiment," and / or "some embodiments" refer to a particular feature, structure, or characteristic associated with at least one embodiment of this specification. Therefore, it should be emphasized and noted that references to "an embodiment," "one embodiment," or "an alternative embodiment" in different locations throughout this specification do not necessarily refer to the same embodiment. Moreover, certain features, structures, or characteristics in one or more embodiments of this specification can be appropriately combined.

[0208] Furthermore, unless expressly stated in the claims, the order of processing elements and sequences, the use of numbers and letters, or other names described in this specification are not intended to limit the order of the processes and methods described herein. Although various examples have been discussed in the foregoing disclosure of some embodiments of the invention that are currently considered useful, it should be understood that such details are for illustrative purposes only, and the appended claims are not limited to the disclosed embodiments; rather, the claims are intended to cover all modifications and equivalent combinations that conform to the spirit and scope of the embodiments described herein. For example, while the system components described above can be implemented using hardware devices, they can also be implemented solely using software solutions, such as installing the described system on existing servers or mobile devices.

[0209] Similarly, it should be noted that, in order to simplify the description disclosed herein and thus aid in the understanding of one or more embodiments of the invention, the foregoing description of embodiments in this specification may sometimes combine multiple features into a single embodiment, drawing, or description thereof. However, this method of disclosure does not imply that the subject matter of this specification requires more features than those mentioned in the claims. In fact, the embodiments contain fewer features than all the features of a single embodiment disclosed above.

[0210] In some embodiments, numbers describing the quantity of components and attributes are used. It should be understood that such numbers used in the description of embodiments are modified in some examples with the terms "approximately," "approximately," or "generally." Unless otherwise stated, "approximately," "approximately," or "generally" indicates that the numbers are allowed to vary by ±20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximate values, which may be changed depending on the characteristics required by individual embodiments. In some embodiments, numerical parameters should take into account specified significant digits and employ a general method of digit reservation. Although the numerical ranges and parameters used to confirm their breadth of range in some embodiments of this specification are approximate values, in specific embodiments, such values ​​are set as precisely as feasible.

[0211] For each patent, patent application, patent application publication, and other material such as articles, books, specifications, publications, and documents referenced in this specification, the entire contents of which are incorporated herein by reference. This excludes historical application documents that are inconsistent with or conflict with the content of this specification, as well as documents that limit the broadest scope of the claims in this specification (currently or subsequently appended to this specification). It should be noted that in the event of any inconsistency or conflict between the descriptions, definitions, and / or terminology used in the supplementary materials to this specification and the content of this specification, the descriptions, definitions, and / or terminology used in this specification shall prevail.

[0212] Finally, it should be understood that the embodiments described in this specification are merely illustrative of the principles of the embodiments described herein. Other variations may also fall within the scope of this specification. Therefore, alternative configurations of the embodiments described herein are intended to be illustrative rather than limiting, and should be considered consistent with the teachings of this specification. Accordingly, the embodiments described herein are not limited to those explicitly introduced and described herein.

Claims

1. A power output system based on Power over Ethernet (PoE), characterized in that, include: The PoE power supply module is configured to connect to a Power over Ethernet (PoE) device to receive power and output the first DC power. The battery pack is configured to store the electrical energy and output a second direct current. The charge / discharge protection module is configured to monitor the charge / discharge status of the battery pack and disconnect the circuit connection of the battery pack when the charge / discharge status is abnormal. The voltage adjustment module is configured to perform voltage conversion processing on the first DC power supply and / or the second DC power supply, and output the operating voltage required by the load device; A power monitoring module is configured to monitor the remaining power of the battery pack; as well as The control module is configured to determine a power supply mode based on the target output power of the load device, the maximum rated power of the POE power supply module, and the remaining power of the battery pack. The power supply mode includes one of a POE power supply mode and a cooperative power supply mode based on the POE power supply module and the battery pack.

2. The system according to claim 1, characterized in that, In response to the power supply mode being the cooperative power supply mode, the control module is further configured to: The safe power of the POE power supply module is determined based on its maximum rated power and operating parameters. Based on the first remaining power of the battery pack and the first power threshold, at least one target battery pack is determined from the battery pack; The supplementary power is determined based on the target output power of the load device and the safe power of the POE power supply module. as well as Control the POE power supply module to output the safe power, and control the target battery pack to output the supplementary power.

3. The system according to claim 2, characterized in that, The control module is also configured to: Obtain the network quality parameters of the load device; When the network quality parameters meet the network preset conditions, the security power is reduced.

4. The system according to claim 1, characterized in that, The power supply mode also includes a battery pack power supply mode, and the control module is further configured to: Based on the voltage and current sequences of the first DC power output by the POE power supply module within a preset time period, the temperature sequence of the POE power supply module, and the physical environment parameter sequence, an anomaly prediction model is used to determine the abnormal situation of the POE power supply module in the future time period. The anomaly prediction model is a machine learning model. as well as When the abnormal situation meets the abnormal preset conditions, the power supply mode will be adjusted to the battery pack power supply mode.

5. The system according to claim 1, characterized in that, The control module is also configured to: When the output power of the POE power supply module is lower than the maximum rated power or the safe power, the POE power supply module is controlled to charge the battery pack.

6. A control method for a power output system based on Power over Ethernet (PoE), characterized in that, include: Monitor the remaining power of the battery pack; as well as The power supply mode is determined based on the target output power of the load device, the maximum rated power of the POE power supply module, and the remaining power of the battery pack. The power supply mode includes either the POE power supply mode or a collaborative power supply mode based on the POE power supply module and the battery pack.

7. The control method according to claim 6, characterized in that, Also includes: Monitor the charging and discharging status of the battery pack, and disconnect the circuit connection of the battery pack when the charging and discharging status is abnormal.

8. The control method according to claim 6, characterized in that, Also includes: The voltage conversion process is performed on the first DC power output from the POE power supply module and / or the second DC power output from the battery pack to output the operating voltage required by the load device.

9. A power output device based on Power over Ethernet (PoE), characterized in that, Includes at least one processor and at least one memory; The at least one memory is used to store computer instructions; The at least one processor is configured to execute at least a portion of the computer instructions to implement the method of any one of claims 6 to 8.

10. A computer-readable storage medium, characterized in that, The storage medium stores computer instructions. When the computer reads the computer instructions from the storage medium, the computer executes the method as described in any one of claims 6 to 8.

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