A power regulation method, power supply equipment and power receiving equipment

Abstract

The embodiment of the present application discloses a power regulation method, a power supply device, and a powered device, which are used to realize refined management of Ethernet power supply systems. The method of the embodiment of the present application can be applied to Ethernet power supply system management. The method of the embodiment of the present application includes: the power supply device obtains the first electrical signal data and the second electrical signal data in each power supply link of at least two power supply links, the first electrical signal data is the electrical signal data of the port of the power supply device, and the second electrical signal data is the electrical signal data of the port of the powered device; the power supply device determines the power loss attribute value of each power supply link according to the first electrical signal data and the second electrical signal data on each power supply link, and the power loss attribute value of each power supply link is used to adjust the power of the corresponding power supply link.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of communications, and in particular to a power regulation method, a power supply device, and a powered device. Background Art

[0002] With the development of Ethernet, switches are increasingly connected to various terminal devices such as wireless access points, cameras, and access control systems. The rate of data transmission through Ethernet ports is also getting faster and faster. The power of the Power over Ethernet (PoE) system is also getting larger and larger. Traditional single Ethernet power supply ports cannot meet the needs of power transmission, so multiple Ethernet power supply ports are used to power terminal devices at the same time. In the process of network construction or expansion, the use of multi-port flexible combination power supply can effectively solve the problems of power supply capacity expansion, PoE backup, PoE superposition or PoE power flexible management.

[0003] In the existing multi-port Ethernet power supply technology solution, the PoE device consists of two parts: power sourcing equipment (PSE) and powered device (PD). The port of PSE and the corresponding port of PD are connected through a link, and the power supply between different links is independent of each other. PSE is a device that supplies power to PD, and PD is a load device that receives power, that is, the load part of the PoE device. PSE can flexibly combine more than two links to power the same PD.

[0004] In the existing PoE system, within the power range that the power supply device can provide, the output power of the power supply device is determined by the powered device. The power supply device can only output the power output to the powered device according to the power receiving requirements of the powered device, that is, the power output of the power supply device to the powered device is the power required by the powered device. This Ethernet power supply solution is not conducive to the management of Ethernet power supply by the PoE system, nor is it the most energy-efficient Ethernet power supply solution, resulting in a large waste of resources. Summary of the invention

[0005] The embodiments of the present application provide a power regulation method, a power supply device, and a powered device, which are used to achieve refined management of Ethernet power supply, reduce power loss of Ethernet power supply devices, and reduce resource waste.

[0006] A first aspect of an embodiment of the present application provides a power regulation method, which is applied to an Ethernet power supply system, wherein the Ethernet power supply system includes a power supply device and a powered device, wherein the power supply device and the powered device are connected via at least two power supply links, and the power supply device can transmit electric energy to the powered device via the power supply link, and can also transmit data with the powered device via the power supply link; the method includes: the power supply device obtains first electrical signal data and second electrical signal data of each link via the power supply link, wherein the first electrical signal data is electrical signal data of a port of the power supply device detected by a detection device of the power supply device, and the second electrical signal data is electrical signal data of a port of the powered device detected by a detection device of the powered device, and the power supply device then calculates a power loss attribute value of each link based on the first electrical signal data and the second electrical signal data of each link, wherein the power loss attribute value is an indicator for adjusting the power supply power of the corresponding power supply link.

[0007] In the first aspect, the power supply device may be a network switching device such as an Ethernet switch, a router, or a hub, and the powered device may be a terminal device such as a network camera, a wireless access point, or a handheld computer. A single powered device may be connected to a powered device via multiple power supply links, and a single power supply device may be connected to multiple powered devices. The power supply link may be used to transmit electrical energy or data. The first electrical signal data includes data such as the voltage and current of each port of the power supply device; the second electrical signal data includes data such as the voltage and current of each port of the powered device. The power supply loss attribute value is an inherent attribute value that measures the degree of power loss of each power supply link during power supply operation, including resistance, reactance, or impedance.

[0008] In the embodiment of the present application, the ports of the power supply device and the powered device are both equipped with detection devices, and the power supply device and the powered device can obtain the electrical signal data of each port of the power supply device and the powered device through the detection device, such as voltage, current, etc. When the power supply device normally supplies power to the powered device, before the Ethernet power supply system adjusts the power supply power of each power supply link, the output voltage of each port of the power supply device is stable and unchanged, and the current output by the power supply device for a single powered device is fixed, that is, the total current of the current values ​​of multiple power supply links connected to a single powered device and the power supply device is fixed.

[0009] In a possible implementation manner of the first aspect, the above-mentioned step: the power supply device obtains the first electrical signal data and the second electrical signal data of each link through the power supply link, includes: the power supply device receives the first electrical signal data and the second electrical signal data in each power supply link of at least two power supply links sent by the powered device.

[0010] In this possible implementation, the power supply device receives the first electrical signal data and the second electrical signal data sent by the powered device, and determines the power loss attribute value of each power supply link based on the first electrical signal data and the second electrical signal data, and finally adjusts the power of the corresponding power supply link based on the power loss attribute value of each power supply link. In this possible implementation, the power supply device receives the first electrical signal data and the second electrical signal data sent by the powered device, and adjusts the power of the corresponding power supply link based on the first electrical signal data and the second electrical signal data; the power supply device performs power adjustment, which is conducive to the unified management of the powered devices connected to it by the power supply device.

[0011] In a possible implementation manner of the first aspect, both the power supply device and the powered device are equipped with a detection device for detecting electrical signals of each port, and the above-mentioned step: the power supply device obtains the first electrical signal data and the second electrical signal data of each link through the power supply link, includes: the power supply device obtains the first electrical signal data and the second electrical signal data in each power supply link of at least two power supply links through the detection device, and the detection device is used to detect the electrical signal of each port of the power supply device and the powered device.

[0012] In this possible implementation, the power supply device obtains the first electrical signal data and the second electrical signal data in each of the at least two power supply links through the detection device, and determines the power loss attribute value of each power supply link according to the first electrical signal data and the second electrical signal data, and finally adjusts the power of the corresponding power supply link according to the power loss attribute value of each power supply link. In this possible implementation, the entire power regulation process is completed by the power supply device, and the powered device does not participate in the power regulation, which reduces the devices involved in the power regulation process and reduces the complexity of the solution; at the same time, the power regulation by the power supply device is conducive to the unified management of the powered devices connected to it by the power supply device.

[0013] In a possible implementation of the first aspect, the method also includes: the power supply device sends the calculated power loss attribute value of each power supply link to the powered device, and the power loss attribute value represents the attribute of the loss value of electric energy of each power supply link during the power supply process. The larger the power loss attribute value, the greater the proportion of the loss power to the total power supply power. Therefore, the power loss attribute value can be used by the powered device to adjust the power of the corresponding power supply link according to the power loss attribute value.

[0014] In this possible implementation, the power supply device sends the power loss attribute value of each power supply link to the powered device, and the powered device adjusts the power of the corresponding power supply link according to the power loss attribute value. In this process, the powered device does not need to collect the electrical signal data of each port, which reduces the working steps of the powered device. The powered device adjusts the power of the power supply link of the powered device, which is simpler and more convenient.

[0015] In a possible implementation manner of the first aspect, the method further includes: the power supply device adjusts the power of the corresponding power supply link according to the power loss attribute value of each power supply link.

[0016] In this possible implementation, the power supply device obtains the first electrical signal data and the second electrical signal data, and then determines the power loss attribute value of each power supply link according to the first electrical signal data and the second electrical signal data. The power supply device does not send the power loss attribute value to the powered device, but adjusts the power of the corresponding power supply link according to the power loss attribute value. The powered device does not participate in the power regulation process, and the power regulation is entirely performed by the power supply device. The power supply device does not send the power loss attribute value to the powered device; at the same time, the power supply device can obtain the electrical signal data and power loss attribute values ​​of all power supply links of the power supply device, which is beneficial for the power supply device to manage multiple connected powered devices.

[0017] In a possible implementation manner of the first aspect, the power loss attribute value of each power supply link is the impedance value of each power supply link; the above steps: the power supply device adjusts the power of the corresponding power supply link according to the power loss attribute value of each power supply link, including: the power supply device determines the first impedance ratio between each power supply link according to the impedance value of each power supply link; the power supply device adjusts the power of the corresponding power supply link according to the first current balancing ratio, and the first current balancing ratio is inversely proportional to the first impedance ratio.

[0018] In this possible implementation, when the power loss attribute value of each power supply link is the impedance value of each power supply link, a method for adjusting the power of the corresponding power supply link according to the current sharing ratio is provided, thereby improving the feasibility of the present application.

[0019] In a possible implementation manner of the first aspect, the above-mentioned step: the power supply device adjusts the power of the corresponding power supply link according to the current balancing ratio, including: the power supply device allocates current to each power supply link of the powered device according to the current balancing ratio and the total current of all power supply links connected to the powered device, and the current allocated by the power supply device to each power supply link is positively correlated with the power of each power supply link, that is, the greater the current allocated by the power supply device to each power supply link, the greater the power of each power supply link, and the power supply device thereby realizes power regulation of each power supply link.

[0020] In this possible implementation, the power supply device adjusts the power of each power supply link according to the current balancing ratio technology, and specifically provides a method for adjusting power, thereby improving the feasibility of the present application.

[0021] In a possible implementation manner of the first aspect, the first electrical signal data includes the voltage and current of the port of the power supply device, the second electrical signal data includes the voltage and current of the port of the powered device, and the current of the port of the power supply device is equal to the current of the port of the powered device on the same power supply link; the above-mentioned step: the power supply device determines the power loss attribute value of each power supply link according to the first electrical signal data and the second electrical signal data on each power supply link, including: the power supply device determines the impedance value of each power supply link according to the voltage drop between the voltage of the port of the power supply device and the voltage of the port of the powered device, and the corresponding current of each power supply link.

[0022] In this possible implementation, the power supply device determines the impedance value of each power supply link according to the voltage drop of each power supply link and the corresponding current of each power supply link, which limits the method of calculating the impedance value of each power supply link in this embodiment and improves the feasibility of this solution.

[0023] In a possible implementation manner of the first aspect, the method further includes: if the power of the powered device changes or some of the at least two power supply links fail, the power supply device again adjusts the power of the corresponding power supply link.

[0024] In this possible implementation, when the power of the powered device changes dynamically, the power supply device adjusts the power again, thereby adding a solution for coping with the dynamic change of the power of the powered device.

[0025] In a possible implementation manner of the first aspect, the power loss attribute value of each power supply link is the impedance value of each power supply link; the above-mentioned step: the power supply device adjusts the power of the corresponding power supply link again, including: the power supply device determines the second impedance ratio between each power supply link according to the impedance value of each power supply link, the second impedance ratio is the ratio of the impedance values ​​of the power supply links after the power of the powered device changes or some links of at least two power supply links fail; the power supply device adjusts the power of the corresponding power supply link according to the second current balancing ratio, and the second current balancing ratio is the inverse of the second impedance ratio.

[0026] In this possible implementation method, it is specified that after the specific power supply device calculates the dynamic change of the power of the powered device, the power supply device determines the second impedance ratio of each power supply link connected to the powered device, and adjusts the power of the corresponding power supply link according to the second impedance ratio. The method for the power supply device to adjust the power again is specifically specified, thereby improving the feasibility of the solution.

[0027] A second aspect of an embodiment of the present application provides a power regulation method, which is applied to an Ethernet power supply system. The Ethernet power supply system includes a power supply device and a powered device, and the power supply device and the powered device are connected through at least two power supply links. The method includes: the powered device obtains a power loss attribute value of each power supply link in the at least two power supply links; the powered device adjusts the power of the corresponding power supply link according to the power loss attribute value of each power supply link.

[0028] In a possible implementation manner of the second aspect, the step of: the powered device acquiring the power loss attribute value of each of the at least two power supply links includes: the powered device receiving the power loss attribute value of each power supply link sent by the power supply device.

[0029] In this possible implementation, the powered device receives the power loss attribute value sent by the power supply device, so that the powered device does not need to calculate the power loss attribute value of each power supply link, reducing the calculation difficulty of the powered device; at the same time, the powered device directly and independently adjusts the power of the power supply link to which it is connected, and the adjustment process is simple and convenient and is not affected by other powered devices.

[0030] In a possible implementation manner of the second aspect, the above-mentioned step: the powered device obtains the power loss attribute value of each power supply link in at least two power supply links, including: the powered device obtains the first electrical signal data and the second electrical signal data in each power supply link through the detection device on the power supply device side and the detection device on the powered device side, the first electrical signal data is the electrical signal data of the port of the power supply device, and the second electrical signal data is the electrical signal data of the port of the powered device; the powered device then determines the power loss attribute value of each power supply link based on the first electrical signal data and the second electrical signal data on each power supply link.

[0031] In this possible implementation, the powered device itself obtains the first electrical signal data and the second electrical signal data in each power supply link through a detection device, and then determines the power loss attribute value of each power supply link based on the first electrical signal data and the second electrical signal data. The entire process is executed by the powered device, and the power supply device does not directly participate in power regulation, which reduces the devices that need to participate in power regulation, reduces the complexity of the solution, and is simpler and more convenient to implement. At the same time, the power is directly regulated by the powered device, and each powered device performs power regulation independently, making power regulation simpler and more efficient.

[0032] In a possible implementation manner of the second aspect, the power loss attribute value of each power supply link is the impedance value of each power supply link; the above steps: the powered device adjusts the power of the corresponding power supply link according to the power loss attribute value of each power supply link, including: the powered device determines the first impedance ratio between each power supply link according to the impedance value of each power supply link; the powered device adjusts the power of the corresponding power supply link according to the first current balancing ratio, and the first current balancing ratio is inversely proportional to the first impedance ratio.

[0033] In this possible implementation, when the power supply loss attribute value is an impedance value, a scheme for adjusting the power of the corresponding power supply link according to the first current equalization ratio is determined, which provides a specific power adjustment scheme when the power supply loss attribute value is an impedance value, thereby improving the feasibility of the present application.

[0034] In a possible implementation manner of the second aspect, the above-mentioned step: the powered device adjusts the power of the corresponding power supply link according to the first current balancing ratio, including: the powered device allocates current to each power supply link of the powered device according to the current balancing ratio and the total current of all power supply links connected to the powered device, and the current allocated by the powered device to each power supply link is positively correlated with the power of each power supply link, that is, the greater the current allocated by the powered device to each power supply link, the greater the power of each power supply link, and the powered device thereby realizes power regulation of each power supply link.

[0035] In this possible implementation, the power supply device adjusts the power of each power supply link according to the current balancing ratio technology, and specifically provides a method for adjusting power according to the current balancing ratio technology, thereby improving the feasibility of the present application.

[0036] In a possible implementation manner of the second aspect, the first electrical signal data includes the voltage and current of the port of the power supply device, the second electrical signal data includes the voltage and current of the port of the powered device, and the current of the port of the power supply device is equal to the current of the port of the powered device on the same power supply link; the above-mentioned step: the powered device determines the power loss attribute value of each power supply link according to the first electrical signal data and the second electrical signal data on each power supply link, including: the powered device determines the impedance value of each power supply link according to the voltage drop between the voltage of the port of the power supply device and the voltage of the port of the powered device, and the current of each power supply link.

[0037] In this possible implementation, the powered device determines the impedance value of each power supply link according to the voltage drop and the corresponding current of each power supply link, which limits this embodiment to a specific method for calculating the impedance value of each power supply link, thereby improving the feasibility of this solution.

[0038] In a possible implementation manner of the first aspect, the method further includes: if the power of the powered device changes or some of the at least two power supply links fail, the powered device again adjusts the power of the corresponding power supply link.

[0039] In this possible implementation, when the power of the powered device changes dynamically, the powered device adjusts the power again, thereby adding a solution for coping with the dynamic change of the power of the powered device.

[0040] In a possible implementation manner of the first aspect, the power loss attribute value of each power supply link is the impedance value of each power supply link; the above-mentioned step: the powered device adjusts the power of the corresponding power supply link again, including: the powered device determines a second impedance ratio between each power supply link according to the impedance value of each power supply link, the second impedance ratio is the ratio of the impedance values ​​of the power supply links after the power of the powered device changes or some links of at least two power supply links fail; the powered device adjusts the power of the corresponding power supply link according to the second current balancing ratio, and the second current balancing ratio is the inverse of the second impedance ratio.

[0041] In this possible implementation, it is defined that after the power of a specific powered device changes dynamically, the powered device determines the second impedance ratio of each power supply link connected to the powered device, and adjusts the power of the corresponding power supply link according to the second impedance ratio. The method for the powered device to adjust the power again is specifically defined, thereby improving the feasibility of the solution.

[0042] A third aspect of an embodiment of the present application provides a power regulation method, which is applied to an Ethernet power supply system. The Ethernet power supply system includes a power supply device and a powered device, the power supply device and the powered device are connected through at least two power supply links, and the power supply device and the powered device are both equipped with a detection device for detecting electrical signals of each port. The method includes: the powered device obtains first electrical signal data and second electrical signal data in each of the at least two power supply links through the detection device, and the detection device is used to detect the electrical signal of each port of the power supply device and the powered device; the powered device sends the first electrical signal data and the second electrical signal data to the power supply device, so that the power supply device adjusts the power supply power of the corresponding power supply link according to the first electrical signal data and the second electrical signal data.

[0043] In a fourth aspect, the present application provides a power supply device, which has the function of implementing the method of the first aspect or any possible implementation of the first aspect. The function can be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions, such as a processing unit.

[0044] In a fifth aspect of the present application, a powered device is provided, which has the function of implementing the method of the second aspect, the third aspect, or any possible implementation of the second aspect. The function can be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above functions, such as a processing unit.

[0045] In a sixth aspect, the present application provides a power supply device, which includes at least one processor, a memory, an input / output (I / O) interface, and computer execution instructions stored in the memory and executable on the processor. When the computer execution instructions are executed by the processor, the processor executes a method as described in the first aspect or any possible implementation of the first aspect.

[0046] In a seventh aspect, the present application provides a powered device, which includes at least one processor, a memory, an input / output (I / O) interface, and a computer-executable instruction stored in the memory and executable by the processor. When the computer-executable instruction is executed by the processor, the processor executes a method as described in the second aspect or any possible implementation of the second aspect.

[0047] In an eighth aspect, the present application provides a computer-readable storage medium storing one or more computer-executable instructions. When the computer-executable instructions are executed by a processor, the processor executes a method as described in the first aspect or any possible implementation of the first aspect.

[0048] In a ninth aspect, the present application provides a computer-readable storage medium storing one or more computer-executable instructions. When the computer-executable instructions are executed by a processor, the processor executes a method as described in the second aspect or any possible implementation of the second aspect.

[0049] The tenth aspect of the present application provides a computer program product storing one or more computer-executable instructions. When the computer-executable instructions are executed by a processor, the processor executes a method as described in the first aspect or any possible implementation of the first aspect.

[0050] In an eleventh aspect of the present application, there is provided a computer program product storing one or more computer executable instructions. When the computer executable instructions are executed by a processor, the processor executes a method as in the second aspect or any possible implementation of the second aspect.

[0051] In the twelfth aspect of the present application, a chip system is provided, which includes at least one processor, and the at least one processor is used to implement the functions involved in the above-mentioned first aspect or any possible implementation of the first aspect. In one possible design, the chip system may also include a memory, which is used to store program instructions and data necessary for the device for processing the artificial intelligence model. The chip system can be composed of chips, or it can include chips and other discrete devices.

[0052] In the thirteenth aspect of the present application, a chip system is provided, which includes at least one processor, and the at least one processor is used to implement the functions involved in the above-mentioned second aspect or any possible implementation of the second aspect. In one possible design, the chip system may also include a memory, which is used to store the necessary program instructions and data for the device for data processing based on the artificial intelligence model. The chip system can be composed of chips, or it can include chips and other discrete devices.

[0053] In a fourteenth aspect of the present application, there is provided an Ethernet power supply system, the Ethernet power supply system comprising the power supply device of the fourth aspect and the powered device of the fifth aspect. The power supply device in the Ethernet power supply system can execute the method of the first aspect and any possible implementation of the first aspect; the powered device in the Ethernet power supply system can execute the method of any possible implementation of the second aspect, the third aspect and the second aspect.

[0054] It can be seen from the above technical solutions that the embodiments of the present application have the following advantages:

[0055] In the embodiment of the present application, the power supply device obtains the first electrical signal data and the second electrical signal data in each power supply link of at least two power supply links, and then the power supply device determines the power loss attribute value of each power supply link according to the first electrical signal data and the second electrical signal data on each power supply link, and the power loss attribute value of each power supply link is used to adjust the power of the corresponding power supply link. Compared with the prior art, in the embodiment of the present application, the Ethernet power supply system can adjust the power of the corresponding power supply link according to the power loss attribute value of each power supply link, so that the Ethernet power supply device can accurately adjust the power supply power to each power supply link, realizing the refined management of Ethernet power supply power, which is a more energy-saving Ethernet power supply method and reduces the waste of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] Figure 1 Schematic diagram of the scenario for powering Ethernet;

[0057] Figure 2 Network framework diagram for Power over Ethernet;

[0058] Figure 3 Another network framework diagram for Power over Ethernet;

[0059] Figure 4 A schematic diagram of a flow chart of a power regulation method in an embodiment of the present application;

[0060] Figure 5 This is another flowchart of the power regulation method in the embodiment of the present application;

[0061] Figure 6 This is another flowchart of the power regulation method in the embodiment of the present application;

[0062] Figure 7 This is another flowchart of the power regulation method in the embodiment of the present application;

[0063] Figure 8 This is a structural schematic diagram of a power supply device in an embodiment of the present application;

[0064] Fig. 9 This is a structural schematic diagram of a powered device in an embodiment of the present application;

[0065] Fig.10 This is another structural schematic diagram of the power supply device in the embodiment of the present application;

[0066] Fig.11 This is another structural schematic diagram of the powered device in the embodiment of the present application;

[0067] Fig.12 It is a structural schematic diagram of the Ethernet power supply system in the embodiment of the present application. DETAILED DESCRIPTION

[0068] The following describes the embodiments of the present application in conjunction with the accompanying drawings. Obviously, the described embodiments are only embodiments of a part of the present application, rather than all embodiments. It is known to those skilled in the art that with the development of technology and the emergence of new scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

[0069] The terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0070] The embodiment of the present application provides a power regulation method for reducing power loss of Ethernet power supply equipment and reducing resource waste.

[0071] Power over Ethernet (PoE) is a technology that can transmit data and power in an Ethernet network. Terminal devices obtain power through the power supply link, eliminating the need to lay separate power lines, simplifying system wiring and reducing the construction cost of network infrastructure.

[0072] With the development of Ethernet power supply technology, the power supply of Ethernet power supply equipment is getting larger and larger. The traditional single Ethernet power supply port cannot meet the demand of power transmission, so users begin to use multiple Ethernet power supply ports to power the same terminal device at the same time. In the process of network construction or expansion, the use of multi-port flexible combination power supply can effectively solve the problems of power supply capacity expansion, PoE backup, PoE superposition or flexible PoE power management.

[0073] See also Figure 1 In the scenario of multi-port Ethernet power supply, a single terminal device can be connected to an Ethernet switch through multiple power supply links, and the Ethernet switch can transmit data with the terminal device through the multiple power supply links to provide power to the terminal device. The multiple power supply links are independently powered, which improves the power supply capacity of the Ethernet switch to the terminal device.

[0074] See also Figure 2 The Ethernet power supply system usually includes a power supply device and a powered device. The power supply port of the power supply device is connected to the powered port of the powered device through a power supply link. The power supply device can supply power to the powered device through the power supply link, and the power supply device and the powered device can transmit data to each other through the power supply link. The power supply link is usually an Ethernet cable.

[0075] Power sourcing equipment (PSE) is a device that provides power to other terminal devices in the Ethernet power supply system, such as Ethernet switches, routers, hubs and other network switching devices. The power supply equipment has multiple power supply ports and can provide power to multiple powered devices. The ports of the power supply equipment are independently powered, and the voltage output by each port of the power supply equipment is equal and fixed. The total current of each power supply link that supplies power to a powered device is fixed; the power supply equipment can also transmit data through the multiple power supply ports. There is a detection device at each port in the power supply equipment to detect the electrical signal data of each port. For example, the voltage detection circuit or current detection circuit at each port can be used to obtain the voltage or current data of each port.

[0076] Powered device (PD) is a device in the Ethernet power supply system that needs other devices to provide it with power, such as a network camera, wireless access point or handheld computer. The powered device has multiple power receiving ports, which can be connected to the power supply device through multiple power supply links to receive power from the power supply device. Each power receiving port between the powered devices is independently powered; and multiple powered ports of the powered device can transmit data. There are also detection devices at each powered port of the powered device.

[0077] See also Figure 3 , a power supply device can be connected to multiple powered devices through multiple power supply links. For a single powered device, the power supply device can be connected through multiple power supply links. The power supply port of the power supply device corresponds to the power supply port of the powered device one by one, and they are powered independently. The output voltage of each power supply port of the power supply device is equal and fixed, and the current output by the power supply device for a single powered device is fixed, that is, the total current of multiple power supply links connecting a single powered device to the power supply device is fixed.

[0078] Based on the above-mentioned Ethernet power supply system, the power regulation method in the embodiment of the present application is described below:

[0079] Before the Ethernet power supply device performs power regulation, the power supply device and the powered device must establish a connection through a power supply link, and the power supply device and the powered device can transmit data through the power supply link. The following is a detailed description:

[0080] The power supply device detects and classifies the powered device. Specifically, the power supply device detects whether the powered device is a powered device that meets the power supply standard of the power supply device. If the power supply device confirms that the powered device is a powered device that meets the power supply standard of the power supply device, the power supply device classifies the powered device according to the power receiving information of the powered device; if the power supply device confirms that the powered device is a powered device that does not meet the power supply standard of the power supply device, the power supply device does not supply power to the powered device.

[0081] The power supply device supplies power to the powered device according to the classification information of the powered device.

[0082] It should be noted that the power supply standard includes a power supply voltage standard, a power supply current standard and a power supply power standard, which are not specifically limited here. The power receiving information of the power receiving device includes a power receiving voltage standard, a power receiving current standard and a power receiving power standard, which are not specifically limited here.

[0083] In the embodiment of the present application, both the power supply device and the powered device can adjust the power of each power supply link, which are described below respectively:

[0084] 1. The powered equipment regulates the power of each power supply link.

[0085] In the embodiment of the present application, the power supply device may directly participate in the Ethernet power regulation, or may not directly participate in the Ethernet power regulation, which is described below respectively:

[0086] A. The power supply equipment directly participates in the Ethernet power regulation.

[0087] See also Figure 4 , a process of the power regulation method in the embodiment of the present application includes:

[0088] 401. A power supply device obtains first electrical signal data and second electrical signal data.

[0089] The power supply device uses the detection device of the power supply port of the power supply device to obtain the first electrical signal data in each power supply link, and the first electrical signal data is the current and voltage of each port of the power supply device.

[0090] The power supply device uses the detection device of the power receiving port of the power receiving device to obtain the second electrical signal data in each power supply link, and the second electrical signal data is the current and voltage of each port of the power receiving device. On the same power supply link, the current of the port of the power supply device is equal to the current of the port of the corresponding power receiving device.

[0091] The electrical signal data that can be obtained by the power supply equipment using the detection device include current and voltage. It can be understood that in practical applications, more types of electrical signal data can also be included, such as capacitance, impedance, etc., which are not specifically limited here.

[0092] 402. The power supply device determines a power loss attribute value of each power supply link.

[0093] The power supply device determines the power loss attribute value of each power supply link according to the voltage drop between the voltage of the port of the power supply device and the voltage of the port of the powered device, and the current of each power supply link. In the embodiment of the present application, the power loss attribute value is an impedance value.

[0094] Specifically, if the voltage of the port of the power supply device corresponding to a power supply link is V1, the voltage of the port of the powered device corresponding to the power supply link is V2, and the current of the power supply link is I, then the impedance value of the power supply link is Z=(V1-V2) / I.

[0095] The power supply device can use the current and voltage of each port of the power supply device and the current and voltage of each port of the powered device to calculate the impedance value of each power supply link. It can be understood that in practical applications, other power loss attribute values ​​of each power supply link can also be calculated, such as resistance, reactance and other parameters, which are not limited here.

[0096] 403. The power supply device sends the power loss attribute value of each power supply link to the powered device. Correspondingly, the powered device receives the power loss attribute value of each power supply link.

[0097] The power supply device sends the power loss attribute value of each power supply link to the powered device through the power supply link. Correspondingly, the powered device receives the power loss attribute value of each power supply link through the power supply link. The powered device can adjust the power supply power of each power supply link according to the received power loss attribute value of each power supply link.

[0098] 404. The powered device determines a power loss attribute value ratio between each power supply link according to the power loss attribute value of each power supply link.

[0099] The powered device determines the power loss attribute value ratio between each power supply link according to the power loss attribute value of each power supply link. In the embodiment of the present application, the power loss attribute value is an impedance value, and the power loss attribute value ratio is the ratio of the impedance values ​​of each power supply link. For example, there are three power supply links A, B and C, and the impedance value Z of power supply link A is A The impedance value of power supply link B is Z B The impedance value of the power supply link C is Z C is 5Ω, then the impedance ratio of these three power supply links is Z A :Z B :Z C It is 2:3:5.

[0100] 405. The powered device adjusts the power of the corresponding power supply link according to the power supply loss attribute value ratio and the total current of the power supply link.

[0101] In an embodiment of the present application, the power loss attribute value ratio is an impedance ratio, and the powered device determines the current sharing ratio of each power supply link based on the impedance ratio, and the current sharing ratio of each power supply link is the inverse proportion of the impedance ratio between each power supply link; then the powered device uses the current sharing technology to distribute current to each power supply link according to the current sharing ratio of each power supply link and the total current of all power supply links supplying power to the powered device.

[0102] Specifically, for example, the power supply device and the powered device are connected through three power supply links A, B and C, and the total current I of the three power supply links is 总 The impedance ratio of the three power supply links is Z A :Z B :Z C is 2:3:5, then the current sharing ratio of the three power supply links is 5:3:2; the total current is distributed to the powered equipment according to the current sharing ratio of 5:3:2, then the current that the power supply equipment should distribute to the power supply link A is IA = I 总 5 / (2+3+5)=I 总 / 2, the current that the power supply equipment should allocate for power supply link B is IB=I 总 3 / (2+3+5)=I 总 ·3 / 10, the current that the power supply equipment should allocate to the power supply link C is IC = I 总 2 / (2+3+5)=I 总 / 5.

[0103] The powered device can adjust the current of each power supply link according to the impedance ratio and the total current of the power supply link, thereby adjusting the power of each power supply link. Specifically, the power supply power P of each power supply link is the product of the voltage U of each power supply port of the power supply device and the current I of each power supply link, that is, P = U·I; since the voltage U of each power supply port of the power supply device is equal and a fixed voltage value, and the total current of each power supply link that supplies power to a powered device is fixed, that is, the power supply power P of each power supply link is positively correlated with the current I of each power supply link, so the powered device can adjust the power of each power supply link by the current of each power supply link.

[0104] It is understandable that in practical applications, the powered device can adjust the power supply power of each power supply link by adjusting other circuit parameters of each power supply link according to the impedance ratio, such as the voltage and resistance of each power supply circuit, which is not specifically limited here.

[0105] 406. The powered device determines a second power supply loss attribute value ratio between each power supply link according to the power supply loss attribute value of each power supply link.

[0106] If the power of the powered device changes or some of the links in at least two power supply links fail, the powered device determines the second power supply loss attribute value ratio between each power supply link based on the power supply loss attribute value of each power supply link. The second power supply loss attribute value ratio is the ratio of the power supply loss attribute values ​​of the power supply links that are still working normally after the power of the powered device changes or some of the links in at least two power supply links fail. In the embodiment of the present application, the power supply loss attribute value is an impedance value, and the second power supply loss attribute value ratio is the ratio of the impedance values ​​of each power supply link that is still working normally. For example, there are three power supply links A, B and C that are working normally, and the impedance value Z of power supply link A is A The impedance value of power supply link B is Z B The impedance value of the power supply link C is Z C is 5Ω, then the impedance ratio of these three power supply links is Z A :Z B :Z C It is 2:3:5.

[0107] 407. The powered device adjusts the power of the corresponding power supply link according to the second power supply loss attribute value ratio and the total current of the power supply link.

[0108] In the embodiment of the present application, step 407 is similar to step 405 and will not be described again here.

[0109] In the embodiment of the present application, the power supply device sends the impedance value of each power supply link to the powered device, and the powered device determines the impedance ratio of each power supply line according to the impedance value of each power supply link, and then adjusts the power of the corresponding power supply link according to the impedance ratio and the total current of the power supply link. It can be understood that in actual applications, the power supply device may send other data to the powered device, for example, the power supply device may send the impedance ratio of each power supply line to the powered device, and the powered device adjusts the power of the corresponding power supply link according to the impedance ratio and the total current of the power supply link; the power supply device may also send the current and voltage of the power supply device and the current and voltage of the powered device to the powered device, and the powered device determines the impedance value of each power supply link according to the current and voltage of the power supply device and the current and voltage of the powered device, and then determines the impedance ratio of each power supply line according to the impedance value of each power supply link, and finally adjusts the power of the corresponding power supply link according to the impedance ratio and the total current of the power supply link; the power supply device may also send the current sharing ratio to the powered device, and the powered device adjusts the power of the corresponding power supply link according to the current sharing ratio and the total current of the power supply link. No specific limitation is made here.

[0110] In the above embodiment, the power supply device sends the power loss attribute value of each power supply link to the power supply device and the powered device, and directly participates in the Ethernet power regulation. In addition, the power supply device may not directly participate in the Ethernet power regulation, which is specifically described below:

[0111] B. The power supply equipment does not directly participate in the Ethernet power regulation.

[0112] See also Figure 5 Another process of the power regulation method in the embodiment of the present application includes:

[0113] 501. A powered device obtains first electrical signal data and second electrical signal data.

[0114] 502. The powered device determines a power loss attribute value of each power supply link.

[0115] 503. The powered device determines a power loss attribute value ratio between each power supply link according to the power loss attribute value of each power supply link.

[0116] 504. The powered device adjusts the power of the corresponding power supply link according to the power supply loss attribute value ratio and the total current of the power supply link.

[0117] 505. The powered device determines a second power supply loss attribute value ratio between each power supply link according to the power supply loss attribute value of each power supply link.

[0118] 506. The powered device adjusts the power of the corresponding power supply link according to the second power supply loss attribute value ratio and the total current of the power supply link.

[0119] In the embodiment of the present application, step 501 is similar to step 401, step 502 is similar to step 402, step 503 is similar to step 404, step 504 is similar to step 405, step 505 is similar to step 406, and step 506 is similar to step 407, which will not be repeated here.

[0120] In the embodiment of the present application, the powered device can adjust the power of each power supply link, and the power supply device can also adjust the power of each power supply link, which is specifically described below:

[0121] 2. The power supply equipment adjusts the power of each power supply link.

[0122] In the embodiment of the present application, the powered device may directly participate in the Ethernet power regulation, or may not directly participate in the Ethernet power regulation, which is described below respectively:

[0123] A. The powered device directly participates in the Ethernet power regulation.

[0124] See also Figure 6 Another process of the power regulation method in the embodiment of the present application includes:

[0125] 601. A powered device obtains first electrical signal data and second electrical signal data.

[0126] 602. The powered device sends first electrical signal data and second electrical signal data to the power supply device. Correspondingly, the power supply device receives the first electrical signal data and the second electrical signal data sent by the powered device.

[0127] 603. The power supply device determines a power loss attribute value of each power supply link.

[0128] 604. The power supply device determines a power loss attribute value ratio between each power supply link according to the power loss attribute value of each power supply link.

[0129] 605. The power supply device adjusts the power of the corresponding power supply link according to the power supply loss attribute value ratio and the total current of the power supply link.

[0130] 606. The power supply device determines a second power supply loss attribute value ratio between each power supply link according to the power supply loss attribute value of each power supply link.

[0131] 607. The power supply device adjusts the power of the corresponding power supply link according to the second power supply loss attribute value ratio and the total current of the power supply link.

[0132] In the embodiment of the present application, step 601 is similar to step 401, step 602 is similar to step 402, step 603 is similar to step 403, step 604 is similar to step 404, step 605 is similar to step 405, step 606 is similar to step 406, and step 607 is similar to step 407, which will not be repeated here.

[0133] In the embodiment of the present application, the powered device sends the first electrical signal data and the second electrical signal data to the power supply device, and the power supply device determines the impedance value of each power supply link according to the first electrical signal data and the second electrical signal data, and then determines the impedance ratio of each power supply line according to the impedance value of each power supply link, and finally adjusts the power of the corresponding power supply link according to the impedance ratio and the total current of the power supply link; it can be understood that in actual applications, the powered device may send other data to the power supply device, for example, the powered device may send the impedance ratio of each power supply line to the power supply device, and the power supply device adjusts the power of the corresponding power supply link according to the impedance ratio and the total current of the power supply link; the powered device may also send the impedance value of each power supply link to the power supply device, and the power supply device determines the impedance ratio of each power supply line according to the impedance value of each power supply link, and then adjusts the power of the corresponding power supply link according to the impedance ratio and the total current of the power supply link. The powered device may also send a current sharing ratio to the power supply device, and the power supply device adjusts the power of the corresponding power supply link according to the current sharing ratio and the total current of the power supply link. No specific limitation is made here.

[0134] In the above embodiment, the powered device sends the first electrical signal data and the second electrical signal data to the power supply device, and the power supply device participates in the Ethernet power regulation. In addition, the powered device may not participate in the Ethernet power regulation. The following is a detailed description:

[0135] B. The powered device does not directly participate in the Ethernet power regulation.

[0136] See also Figure 7 Another process of the power regulation method in the embodiment of the present application includes:

[0137] 701. A power supply device obtains first electrical signal data and second electrical signal data.

[0138] 702. The power supply device determines a power loss attribute value of each power supply link.

[0139] 703. The power supply device determines a power supply loss attribute value ratio between each power supply link according to the impedance value of each power supply link.

[0140] 704. The power supply device adjusts the power of the corresponding power supply link according to the power supply loss attribute value ratio and the total current of the power supply link.

[0141] 705. The powered device determines a second power supply loss attribute value ratio between each power supply link according to the power supply loss attribute value of each power supply link.

[0142] 706. The powered device adjusts the power of the corresponding power supply link according to the second power supply loss attribute value ratio and the total current of the power supply link.

[0143] In the embodiment of the present application, step 701 is similar to step 401, step 702 is similar to step 402, step 703 is similar to step 404, step 704 is similar to step 405, step 705 is similar to step 406, and step 706 is similar to step 407, which will not be repeated here.

[0144] The power supply device in the embodiment of the present application is described below. Figure 8 The present application embodiment provides a power supply device 800, which can be the above-mentioned Figure 4 , 6 The power supply device described in 7, the power supply device 800 includes:

[0145] The first acquisition unit 801 is used to acquire the first electrical signal data and the second electrical signal data in each power supply link of at least two power supply links, the first electrical signal data is the electrical signal data of the port of the power supply device, and the second electrical signal data is the electrical signal data of the port of the powered device; for specific implementation methods, please refer to Figure 4 In the illustrated embodiment, step 401: the power supply device acquires the first electrical signal data and the second electrical signal data, or Figure 7 In the illustrated embodiment, step 701: the power supply device acquires first electrical signal data and second electrical signal data, which will not be described in detail here.

[0146] The determining unit 802 is used to determine the power loss attribute value of each power supply link according to the first electrical signal data and the second electrical signal data on each power supply link, and the power loss attribute value of each power supply link is used to adjust the power of the corresponding power supply link. For specific implementation methods, please refer to Figure 4 In step 402 of the illustrated embodiment: the power supply device determines the power loss attribute value of each power supply link, or Figure 7 Step 702 is shown as follows: the power supply device determines the power loss attribute value of each power supply link, which will not be described in detail here.

[0147] In this embodiment, the power supply device may further include:

[0148] The sending unit 803 is used to send the power loss attribute value of each power supply link to the powered device. The power loss attribute value of each power supply link is used by the powered device to adjust the power of the corresponding power supply link according to the power loss attribute value of each power supply link. For specific implementation methods, please refer to Figure 4 In step 403 of the illustrated embodiment: the power supply device sends the power loss attribute value of each power supply link to the powered device, which will not be described in detail here.

[0149] In this embodiment, the power supply device may further include:

[0150] The first regulating unit 804 is configured to regulate the power of the corresponding power supply link according to the power loss attribute value of each power supply link.

[0151] In this embodiment, the power loss attribute value of each power supply link is the impedance value of each power supply link; for specific implementation methods, please refer to Figure 6 In the embodiment shown, step 604: the power supply device sends the power loss attribute value of each power supply link to the powered device and step 605: the power supply device adjusts the power of the corresponding power supply link according to the power loss attribute value ratio and the total current of the power supply link, or Figure 7 In the illustrated embodiment, step 703: the power supply device determines the power loss attribute value ratio between each power supply link according to the impedance value of each power supply link, and step 704: the power supply device adjusts the power of the corresponding power supply link according to the power loss attribute value ratio and the total current of the power supply link, which will not be repeated here.

[0152] The first adjustment unit 804 is specifically used for:

[0153] Determining a first impedance ratio between each power supply link according to the impedance value of each power supply link;

[0154] The power of the corresponding power supply link is adjusted according to the first current balancing ratio, and the first current balancing ratio is inversely proportional to the first impedance ratio.

[0155] For specific implementation methods, please refer to Figure 6 In step 604 of the embodiment shown: the power supply device sends the power loss attribute value of each power supply link to the powered device, or Figure 7 In step 703 in the illustrated embodiment: the power supply device determines the power supply loss attribute value ratio between each power supply link according to the impedance value of each power supply link, which will not be described in detail here.

[0156] The first adjustment unit 804 is further specifically configured to:

[0157] According to the first current sharing ratio and the total current of at least two power supply links, current is allocated to each power supply link, and the current allocated to each power supply link is positively correlated with the power of each power supply link.

[0158] In this embodiment, the first electrical signal data includes the voltage and current of the port of the power supply device, and the second electrical signal data includes the voltage and current of the port of the powered device. The current of the port of the power supply device is equal to the current of the port of the powered device on the same power supply link. For specific implementation methods, please refer to Figure 6 In step 605 of the embodiment shown: the power supply device adjusts the power of the corresponding power supply link according to the power loss attribute value ratio and the total current of the power supply link, or Figure 7 In step 704 in the illustrated embodiment, the power supply device adjusts the power of the corresponding power supply link according to the power supply loss attribute value ratio and the total current of the power supply link, which will not be described in detail here.

[0159] The determining unit 802 is specifically configured to:

[0160] The impedance value of each power supply link is determined based on the voltage drop between the port voltage of the power supply device and the port voltage of the powered device, as well as the current of each power supply link. For specific implementation methods, please refer to Figure 4 In step 402 of the illustrated embodiment: the power supply device determines the power loss attribute value of each power supply link, or Figure 7 Step 702 is shown as follows: the power supply device determines the power loss attribute value of each power supply link, which will not be described in detail here.

[0161] In this embodiment, the power supply device may further include:

[0162] The second adjustment unit 805 is used to adjust the power of the corresponding power supply link again if the power of the powered device changes or part of the links of at least two power supply links fail. For specific implementation methods, please refer to Figure 6 In the illustrated embodiment, step 606: the power supply device determines the second power loss attribute value ratio between each power supply link according to the power loss attribute value of each power supply link and step 607: the power supply device adjusts the power of the corresponding power supply link according to the second power loss attribute value ratio and the total current of the power supply link, or Figure 7 In the illustrated embodiment, step 705: the powered device determines the second power loss attribute value ratio between each power supply link according to the power loss attribute value of each power supply link, and step 706: the powered device adjusts the power of the corresponding power supply link according to the second power loss attribute value ratio and the total current of the power supply link, which will not be repeated here.

[0163] In this embodiment, the power loss attribute value of each power supply link is the impedance value of each power supply link;

[0164] The second adjustment unit 805 is specifically used for:

[0165] According to the impedance value of each power supply link, a second impedance ratio between each power supply link is determined, where the second impedance ratio is a ratio of the impedance values ​​of the power supply links after the power of the powered device changes or some links of at least two power supply links fail.

[0166] The power of the corresponding power supply link is adjusted according to the second current sharing ratio, and the second current ratio is inversely proportional to the second impedance ratio. For specific implementation methods, please refer to Figure 6 In the illustrated embodiment, step 606: the power supply device determines the second power loss attribute value ratio between each power supply link according to the power loss attribute value of each power supply link and step 607: the power supply device adjusts the power of the corresponding power supply link according to the second power loss attribute value ratio and the total current of the power supply link, or Figure 7 In the illustrated embodiment, step 705: the powered device determines the second power loss attribute value ratio between each power supply link according to the power loss attribute value of each power supply link, and step 706: the powered device adjusts the power of the corresponding power supply link according to the second power loss attribute value ratio and the total current of the power supply link, which will not be repeated here.

[0167] In this embodiment, the power supply device can execute the above Figures 4 to 7 The operations performed by the power supply device in any of the embodiments shown in the figure will not be described in detail here.

[0168] The following describes the powered device in the embodiment of the present application. Fig. 9 In the embodiment of the present application, a structure of a power supply device 900 includes:

[0169] The acquisition unit 901 is used to obtain the power loss attribute value of each power supply link in the at least two power supply links; for specific implementation methods, please refer to Figure 4 In step 403 of the embodiment, the powered device receives the power loss attribute value of each power supply link, or Figure 5 In the illustrated embodiment, step 501: the powered device acquires the first electrical signal data and the second electrical signal data and step 502: the powered device determines the power loss attribute value of each power supply link are not described in detail here.

[0170] The first adjusting unit 902 is configured to adjust the power of the corresponding power supply link according to the power loss attribute value of each power supply link.

[0171] In this embodiment, the acquisition unit 901 is specifically used for:

[0172] Receive the power loss attribute value of each power supply link sent by the power supply device. For specific implementation methods, please refer to Figure 4 In the embodiment, step 403: the powered device receives the power loss attribute value of each power supply link, which will not be described in detail here.

[0173] In this embodiment, the acquisition unit 901 is specifically used for:

[0174] Acquire first electrical signal data and second electrical signal data in each power supply link, wherein the first electrical signal data is electrical signal data of a port of the power supply device, and the second electrical signal data is electrical signal data of a port of the powered device;

[0175] According to the first electrical signal data and the second electrical signal data on each power supply link, the power supply loss attribute value of each power supply link is determined. For specific implementation methods, please refer to Figure 5 In the illustrated embodiment, step 501: the powered device acquires the first electrical signal data and the second electrical signal data and step 502: the powered device determines the power loss attribute value of each power supply link are not described in detail here.

[0176] In this embodiment, the power loss attribute value of each power supply link is an impedance value of each power supply link, and the first adjustment unit 902 is specifically configured to:

[0177] Determining a first impedance ratio between each power supply link according to the impedance value of each power supply link;

[0178] The power of the corresponding power supply link is adjusted according to the first current balancing ratio, and the first current balancing ratio is the inverse ratio of the first impedance ratio. For specific implementation methods, please refer to Figure 4 Step 404: The powered device determines the power loss attribute value ratio between each power supply link according to the power loss attribute value of each power supply link, or Figure 5 In step 503 , the powered device determines the power loss attribute value ratio between each power supply link according to the power loss attribute value of each power supply link, which will not be described in detail here.

[0179] In this embodiment, the first adjustment unit 902 is specifically used for:

[0180] According to the first current sharing ratio and the total current of the at least two power supply links, current is allocated to each power supply link, and the current allocated to each power supply link is positively correlated with the power of each power supply link.

[0181] In this embodiment, the first electrical signal data includes the voltage and current of the port of the power supply device, and the second electrical signal data includes the voltage and current of the port of the powered device. The current of the port of the power supply device is equal to the current of the port of the powered device on the same power supply link. For specific implementation methods, please refer to Figure 4 Step 405: the powered device adjusts the power of the corresponding power supply link according to the power supply loss attribute value ratio and the total current of the power supply link, or Figure 5In step 504 , the powered device adjusts the power of the corresponding power supply link according to the power supply loss attribute value ratio and the total current of the power supply link, which will not be described in detail here.

[0182] In this embodiment, the acquisition unit 901 is specifically used for:

[0183] According to the voltage drop between the voltage of the port of the power supply device and the voltage of the port of the powered device, and the current of each power supply link, the impedance value of each power supply link is determined. For specific implementation methods, please refer to Figure 5 In the illustrated embodiment, step 501: the powered device acquires the first electrical signal data and the second electrical signal data, and step 502: the powered device determines the power loss attribute value of each power supply link, which will not be described in detail here.

[0184] In this embodiment, the powered device further includes:

[0185] The second adjustment unit 903 is used to adjust the power of the corresponding power supply link again if the power of the powered device changes or some of the at least two power supply links fail. For specific implementation methods, please refer to Figure 4 In step 407 of the illustrated embodiment: the powered device adjusts the power of the corresponding power supply link according to the second power supply loss attribute value ratio and the total current of the power supply link, or Figure 5 In step 506 in the illustrated embodiment, the powered device adjusts the power of the corresponding power supply link according to the second power supply loss attribute value ratio and the total current of the power supply link, which will not be described in detail here.

[0186] In this embodiment, the power loss attribute value of each power supply link is the impedance value of each power supply link.

[0187] In this embodiment, the second adjustment unit 903 is specifically used for:

[0188] A second impedance ratio between each power supply link is determined according to the impedance value of each power supply link, where the second impedance ratio is a ratio of the impedance values ​​of the power supply links after the power of the powered device changes or some links of the at least two power supply links fail.

[0189] The power of the corresponding power supply link is adjusted according to the second current sharing ratio, and the second current sharing ratio is the inverse ratio of the second impedance ratio. For specific implementation methods, please refer to Figure 4 In step 406 of the illustrated embodiment: the powered device determines a second power loss attribute value ratio between each power supply link according to the power loss attribute value of each power supply link, or Figure 5 In step 505 in the illustrated embodiment, the powered device determines a second power supply loss attribute value ratio between each power supply link according to the power supply loss attribute value of each power supply link, which will not be described in detail here.

[0190] In this embodiment, the powered device can execute the above Figures 4 to 7 The operations performed by the powered device in any of the embodiments shown in the figure will not be described in detail here.

[0191] Fig.10 It is a schematic diagram of the structure of a power supply device provided in an embodiment of the present application. The power supply device 1000 may include one or more central processing units (CPU) 1001 and a memory 1005. The memory 1005 stores one or more application programs or data.

[0192] The memory 1005 may be a volatile storage or a persistent storage. The program stored in the memory 1005 may include one or more modules, each of which may include a series of instruction operations in the converged service server. Furthermore, the central processor 1001 may be configured to communicate with the memory 1005 and execute a series of instruction operations in the memory 1005 on the power supply device 1000.

[0193] The central processor 1001 is used to execute the computer program in the memory 1005, so that the power supply device 1000 is used to execute: the power supply device obtains the first electrical signal data and the second electrical signal data in each power supply link of at least two power supply links, the first electrical signal data is the electrical signal data of the port of the power supply device, and the second electrical signal data is the electrical signal data of the port of the powered device; the power supply device determines the power loss attribute value of each power supply link according to the first electrical signal data and the second electrical signal data on each power supply link, and the power loss attribute value of each power supply link is used to adjust the power of the corresponding power supply link. For specific implementation methods, please refer to Figure 4 In the embodiment shown, steps 401-407. or Figure 6 In the embodiment shown, steps 601-607, or Figure 7 Steps 701-706 in the illustrated embodiment will not be described in detail here.

[0194] The power supply device 1000 may also include one or more power supplies 1002, one or more wired or wireless network interfaces 1003, one or more input and output interfaces 1004, and / or one or more operating systems, such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM, etc.

[0195] The power supply device 1000 can perform the aforementioned Figures 4 to 7 The operations performed by the power supply device in any of the embodiments shown in the figure will not be described in detail here.

[0196] Fig.11 1 is a schematic diagram of a powered device structure provided in an embodiment of the present application. The powered device 1100 may include one or more central processing units (CPU) 1101 and a memory 1105. The memory 1105 stores one or more application programs or data.

[0197] The central processor 1101 is used to execute the computer program in the memory 1105, so that the power supply device 1100 is used to execute: the power receiving device obtains the power loss attribute value of each power supply link in at least two power supply links; the power receiving device adjusts the power of the corresponding power supply link according to the power loss attribute value of each power supply link. For specific implementation methods, please refer to Figure 4 In the embodiment shown, steps 401-407, or Figure 5 In the embodiment shown, steps 501-506, or Figure 6 Steps 601-607 in the illustrated embodiment are not described in detail here.

[0198] The memory 1105 may be a volatile storage or a persistent storage. The program stored in the memory 1105 may include one or more modules, each of which may include a series of instruction operations in the converged service server. Furthermore, the central processor 1101 may be configured to communicate with the memory 1105 and execute a series of instruction operations in the memory 1105 on the powered device 1100.

[0199] The powered device 1100 may also include one or more power supplies 1102, one or more wired or wireless network interfaces 1103, one or more input and output interfaces 1104, and / or one or more operating systems, such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM, etc.

[0200] The powered device 1100 can execute the aforementioned Figures 4 to 7 The operations performed by the powered device in any of the illustrated embodiments will not be described in detail herein.

[0201] Fig.12 An Ethernet power supply system 1200 provided in an embodiment of the present application includes: Figure 8 The power supply device 1201 in the embodiment shown and Fig. 9 In the embodiment shown, the powered device 1202 and the powered device 1202 are connected via a power supply link 1203. The system can perform the following operations: Figures 4 to 7 The operation performed by the Ethernet power supply device in any of the embodiments shown; for specific implementation methods, please refer to Figure 4 In the embodiment shown, steps 401-407, or Figure 5 In the embodiment shown, steps 501-506, or Figure 6 In the embodiment shown, steps 601-607, or Figure 7 Steps 701-706 in the illustrated embodiment will not be described in detail here.

[0202] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0203] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0204] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0205] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0206] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, read-only memory), random access memory (RAM, random access memory), disk or optical disk and other media that can store program code.

Claims

1. A method for power regulation, characterized in that: The method is applied to an Ethernet power supply system, the Ethernet power supply system includes a power supply device and a powered device, the power supply device and the powered device are connected via at least two power supply links, and the method includes: The power supply device acquires first electrical signal data and second electrical signal data in each of the at least two power supply links, wherein the first electrical signal data is electrical signal data of a port of the power supply device, and the second electrical signal data is electrical signal data of a port of the powered device; The power supply device determines a power loss attribute value of each power supply link according to the first electrical signal data and the second electrical signal data on each power supply link, and the power loss attribute value of each power supply link is used to adjust the power of the corresponding power supply link.

2. The method according to claim 1, characterized in that The method further comprises: The power supply device sends the power loss attribute value of each power supply link to the powered device, and the power loss attribute value of each power supply link is used by the powered device to adjust the power of the corresponding power supply link according to the power loss attribute value of each power supply link.

3. The method according to claim 1, characterized in that The method further comprises: The power supply device adjusts the power of the corresponding power supply link according to the power loss attribute value of each power supply link.

4. The method according to claim 3, characterized in that The power loss attribute value of each power supply link is the impedance value of each power supply link; The power supply device adjusts the power of the corresponding power supply link according to the power loss attribute value of each power supply link, including: The power supply device determines a first impedance ratio between each power supply link according to the impedance value of each power supply link; The power supply device adjusts the power of the corresponding power supply link according to a first current balancing ratio, where the first current balancing ratio is an inverse proportion of the first impedance ratio.

5. The method according to claim 4, characterized in that The power supply device adjusts the power of the corresponding power supply link according to the current sharing ratio, including: The power supply device allocates current to each power supply link according to the current sharing ratio and the total current of the at least two power supply links, and the current allocated to each power supply link is positively correlated with the power of each power supply link.

6. The method according to claim 4 or 5, characterized in that: The first electrical signal data includes the voltage and current of the port of the power supply device, and the second electrical signal data includes the voltage and current of the port of the powered device, and the current of the port of the power supply device is equal to the current of the port of the powered device on the same power supply link; The power supply device determines the power loss attribute value of each power supply link according to the first electrical signal data and the second electrical signal data on each power supply link, including: The power supply device determines the impedance value of each power supply link according to a voltage drop between a voltage at a port of the power supply device and a voltage at a port of the powered device, and a current of each power supply link.

7. The method according to claim 4 or 5, characterized in that: The method further comprises: If the power of the powered device changes or some of the at least two power supply links fail, the power supply device adjusts the power of the corresponding power supply link again.

8. The method according to claim 7, characterized in that The power loss attribute value of each power supply link is the impedance value of each power supply link; The power supply device adjusts the power of the corresponding power supply link again, including: The power supply device determines, according to the impedance value of each power supply link, a second impedance ratio between the power supply links, wherein the second impedance ratio is a ratio of the impedance values ​​of the power supply links after the power of the powered device changes or some links of the at least two power supply links fail; The power supply device adjusts the power of the corresponding power supply link according to a second current balancing ratio, where the second current balancing ratio is inversely proportional to the second impedance ratio.

9. A method for power regulation, characterized in that: The method is applied to an Ethernet power supply system, the Ethernet power supply system includes a power supply device and a powered device, the power supply device and the powered device are connected via at least two power supply links, and the method includes: The powered device obtains a power loss attribute value of each of the at least two power supply links; The powered device adjusts the power of the corresponding power supply link according to the power supply loss attribute value of each power supply link.

10. The method according to claim 9, characterized in that The powered device obtains the power loss attribute value of each of the at least two power supply links, including: The powered device receives the power loss attribute value of each power supply link sent by the power supply device.

11. The method according to claim 9, characterized in that The powered device obtains the power loss attribute value of each of the at least two power supply links, including: The powered device acquires first electrical signal data and second electrical signal data in each power supply link, wherein the first electrical signal data is electrical signal data of a port of the power supply device, and the second electrical signal data is electrical signal data of a port of the powered device; The powered device determines a power loss attribute value of each power supply link according to the first electrical signal data and the second electrical signal data on each power supply link.

12. The method according to any one of claims 9 to 11, characterized in that: The power loss attribute value of each power supply link is the impedance value of each power supply link; The powered device adjusts the power of the corresponding power supply link according to the power supply loss attribute value of each power supply link, including: The powered device determines, according to the impedance value of each power supply link, a first impedance ratio between each power supply link; The powered device adjusts the power of the corresponding power supply link according to a first current balancing ratio, where the first current balancing ratio is an inverse ratio of the first impedance ratio.

13. The method according to claim 12, characterized in that The powered device adjusts the power of the corresponding power supply link according to the first current sharing ratio, including: The powered device allocates current to each of the power supply links according to the first current sharing ratio and the total current of the at least two power supply links, and the current allocated to each of the power supply links is positively correlated with the power of each of the power supply links.

14. The method according to claim 11, characterized in that The first electrical signal data includes the voltage and current of the port of the power supply device, and the second electrical signal data includes the voltage and current of the port of the powered device, and the current of the port of the power supply device is equal to the current of the port of the powered device on the same power supply link; The powered device determining, according to the first electrical signal data and the second electrical signal data on each power supply link, a power supply loss attribute value of each power supply link includes: The powered device determines the impedance value of each power supply link according to a voltage drop between a voltage at a port of the power supply device and a voltage at a port of the powered device, and a current of each power supply link.

15. The method according to any one of claims 9 to 11, characterized in that: The method further comprises: If the power of the powered device changes or some of the at least two power supply links fail, the powered device adjusts the power of the corresponding power supply link again.

16. The method according to claim 15, characterized in that The power loss attribute value of each power supply link is the impedance value of each power supply link; The powered device again adjusts the power of the corresponding power supply link, including: The powered device determines, according to the impedance value of each power supply link, a second impedance ratio between the power supply links, wherein the second impedance ratio is a ratio of the impedance values ​​of the power supply links after a power change of the powered device or a partial link failure of the at least two power supply links; The powered device adjusts the power of the corresponding power supply link according to a second current balancing ratio, where the second current balancing ratio is an inverse proportion of the second impedance ratio.

17. A power supply device, characterized in that: The power supply device is applied to an Ethernet power supply system, the Ethernet power supply system includes a power supply device and a powered device, the power supply device and the powered device are connected via at least two power supply links, and the power supply device includes: A first acquisition unit, configured to acquire first electrical signal data and second electrical signal data in each of the at least two power supply links, wherein the first electrical signal data is electrical signal data of a port of the power supply device, and the second electrical signal data is electrical signal data of a port of the powered device; A determination unit is used to determine the power loss attribute value of each power supply link according to the first electrical signal data and the second electrical signal data on each power supply link, and the power loss attribute value of each power supply link is used to adjust the power of the corresponding power supply link.

18. The power supply device according to claim 17, characterized in that: The power supply device also includes: The sending unit is used to send the power loss attribute value of each power supply link to the powered device, and the power loss attribute value of each power supply link is used by the powered device to adjust the power of the corresponding power supply link according to the power loss attribute value of each power supply link.

19. The power supply device according to claim 17, characterized in that: The power supply device also includes: The first adjustment unit is used to adjust the power of the corresponding power supply link according to the power loss attribute value of each power supply link.

20. The power supply device according to claim 19, characterized in that: The power loss attribute value of each power supply link is the impedance value of each power supply link; The first adjusting unit is specifically used for: Determining a first impedance ratio between each power supply link according to the impedance value of each power supply link; The power of the corresponding power supply link is adjusted according to a first current balancing ratio, where the first current balancing ratio is inversely proportional to the first impedance ratio.

21. The power supply device according to any one of claims 20, characterized in that: The power supply device also includes: The second adjusting unit is used to adjust the power of the corresponding power supply link again if the power of the powered device changes or some of the at least two power supply links fail.

22. A power receiving device, characterized in that: The powered device is applied to an Ethernet power supply system, the Ethernet power supply system includes a power supply device and a powered device, the power supply device and the powered device are connected via at least two power supply links, and the powered device includes: An acquisition unit, configured to acquire a power loss attribute value of each of the at least two power supply links; The first adjustment unit is used to adjust the power of the corresponding power supply link according to the power loss attribute value of each power supply link.

23. The power receiving device according to claim 22, characterized in that: The acquisition unit is specifically used for: Receive the power loss attribute value of each power supply link sent by the power supply device.

24. The power receiving device according to claim 22, characterized in that: The acquisition unit is specifically used for: Acquire first electrical signal data and second electrical signal data in each power supply link, wherein the first electrical signal data is electrical signal data of a port of the power supply device, and the second electrical signal data is electrical signal data of a port of the powered device; The power supply loss attribute value of each power supply link is determined according to the first electrical signal data and the second electrical signal data on each power supply link.

25. The power receiving device according to any one of claims 22 to 24, characterized in that: The power loss attribute value of each power supply link is the impedance value of each power supply link; The first adjusting unit is specifically used for: Determining a first impedance ratio between each power supply link according to the impedance value of each power supply link; The power of the corresponding power supply link is adjusted according to a first current balancing ratio, where the first current balancing ratio is inversely proportional to the first impedance ratio.

26. The power receiving device according to any one of claims 22 to 24, characterized in that: The powered device further comprises: The second adjusting unit is used to adjust the power of the corresponding power supply link again if the power of the powered device changes or some of the at least two power supply links fail.

27. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the method according to any one of claims 1 to 8 is implemented.

28. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the method according to any one of claims 9 to 16 is implemented.

29. A power supply device, characterized in that: comprising a processor and a computer-readable storage medium storing a computer program; The processor is coupled to the computer-readable storage medium, and when the computer program is executed by the processor, the method according to any one of claims 1 to 8 is implemented.

30. A power receiving device, characterized in that: comprising a processor and a computer-readable storage medium storing a computer program; The processor is coupled to the computer-readable storage medium, and when the computer program is executed by the processor, the method according to any one of claims 9 to 16 is implemented.

31. A chip system, characterized in that: The method comprises a processor, wherein the processor is called to execute the method according to any one of claims 1 to 8.

32. A chip system, characterized in that: The method comprises a processor, wherein the processor is called to execute the method according to any one of claims 9 to 16.

33. An Ethernet power supply system, characterized in that: The Ethernet power supply system comprises the power supply device according to any one of claims 17 to 21 and the powered device according to any one of claims 22 to 26.

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