Connection manner identification method, power sourcing equipment, powered device, and storage medium

Patent metadata

Field	Value
Publication number	US-11876382-B2
Application number	US-202117360630-A
Country	US
Kind code	B2
Filing date	Jun 28, 2021
Priority date	Jun 29, 2020
Publication date	Jan 16, 2024
Grant date	Jan 16, 2024

Abstract

A connection manner identification method includes power sourcing equipment separately sending load adjustment indications to powered devices by using data ports, where each load adjustment indication in the load adjustment indications indicates a corresponding powered device to adjust a load. The powered devices are separately connected to power supply ports of the power sourcing equipment by using power supply cables, and the powered devices are separately connected to the data ports of the power sourcing equipment by using data cables. The power sourcing equipment obtains output power changes of the power supply ports caused by load adjustment of the powered devices, and the power sourcing equipment determines, based on the output power changes, a first data port and a power supply port that are connected to a same powered device in the powered devices.

First claim

What is claimed is:

1. A method implemented by power sourcing equipment, the method comprising:
separately sending a plurality of load adjustment indications to a plurality of powered devices by using a plurality of data ports, wherein each load adjustment indication instructs one of the powered devices to perform a load adjustment, wherein a plurality of power supply ports of the power sourcing equipment are configured to connect to the powered devices by using a plurality of power supply cables, and wherein the data ports are configured to connect to the powered devices by using a plurality of data cables;
obtaining output power changes of power supply ports caused by load adjustment of the powered devices; and
identifying, based on a binary sequence of output power from one of the power supply ports matching one of the load adjustment indications from one of the data ports, that the one of the data ports and the one of the power supply ports are connected to a same one of the powered devices.

2. The method of claim 1 , wherein the load adjustment indications comprise a plurality of load adjustment manners, and wherein the load adjustment manners are different from each other.

3. The method of claim 2 , wherein the power sourcing equipment simultaneously sends the load adjustment indications.

4. The method of claim 1 , wherein the power sourcing equipment sequentially sends the load adjustment indications.

5. The method of claim 2 , wherein the load adjustment manners comprise one or more of different load adjustment start time points, different load adjustment durations, different quantities of load adjustment times, different time intervals for adjacent load adjustment times, or different amplitudes of the output power changes.

6. The method of claim 2 , further comprising performing the method within a duration of n time units, wherein M load adjustment indications instruct to perform load adjustment based on load adjustment manners indicated by M permutations and combinations in 2 n permutations and combinations of n bits of binary numbers, wherein an i th -bit binary number in the permutation and combination indicates a load adjustment status in an i th time unit in the n time units, wherein one binary number in the permutation and combination indicates to not adjust a load, wherein the other binary number in the permutation and combination indicates to adjust the load, and wherein M is less than or equal to 2 n .

7. The method of claim 4 , further comprising identifying, after the one of the data ports sends one of the load adjustment indications, that the one of the data ports and the one of the power supply ports are connected to the same one of the powered devices when output power of the one of the power supply ports changes.

8. The method of claim 2 , further comprising identifying, after the one of the data ports sends one of the load adjustment indications, that the one of the data ports and the one of the power supply ports are connected to the same one of the powered devices when an output power change manner of the one of the power supply ports matches a load adjustment manner indicated by the one of the load adjustment indications.

9. The method of claim 8 , further comprising performing the method within a duration of n time units, wherein the method further comprises identifying that the one of the data ports and the one of the power supply ports are connected to the same one of the powered devices when the binary sequence is the same as a permutation and combination of the one of the load adjustment manners indicated by the one of the load adjustment indications from the one of the data ports, wherein a j th -bit binary number in the binary sequence indicates an output power change status of the one of the power supply ports in a j th time unit in the n time units, wherein one binary number in the binary sequence indicates that an output power is unchanged, wherein the other binary number in the binary sequence indicates that the output power is changed, wherein the permutation and combination comprises a binary number 0 and a binary number 1, wherein an i th -bit binary number in the permutation and combination indicates a load adjustment status in an i th time unit in the n time units, wherein one binary number in the permutation and combination indicates to not adjust a load, and wherein the other binary number in the permutation and combination of the binary numbers indicates to adjust the load.

10. The method of claim 2 , further comprising:
identifying whether the output power changes are different from each other; and
identifying, based on the output power changes and only when the output power changes are different from each other, that the one of the data ports and the one of the power supply ports are connected to the same one of the powered devices.

11. The method of claim 1 , wherein the powered devices comprise working statuses, wherein the method further comprises separately sending status maintenance indications to the powered devices by using the data ports, and wherein the status maintenance indications instruct the powered devices to maintain the working statuses in the method.

12. The method of claim 1 , wherein the powered devices comprise working statuses, and wherein the load adjustment indications further instruct the powered devices to maintain the working statuses in the method.

13. The method of claim 1 , wherein the data cables comprise an optical fiber.

14. The method of claim 13 , wherein the data cables and the power supply cables are in an optoelectronic composite cable.

15. Power sourcing equipment, comprising:
a plurality of data ports configured to be connected to powered devices using data cables;
a plurality of power supply ports configured to be connected to the powered devices using power supply cables;
a power supply management circuit configured send output power changes of the power supply ports from a load adjustment of the powered devices; and
one or more processors communicatively connected to the data ports, the power supply ports, and the power supply management circuit and configured to:
separately send a plurality of load adjustment indications to the powered devices by using the data ports, wherein each load adjustment indication instructs one of the powered devices to perform the load adjustment;
obtain, from the power supply management circuit, output power changes caused by the load adjustment of the powered devices; and
identify, based on a binary sequence of output power from one of the power supply ports matching one of the load adjustment indications from one of the data ports, that the one of the data ports and the one of the power supply ports are connected to a same one of the powered devices.

16. The power sourcing equipment of claim 15 , wherein the load adjustment indications indicate a plurality of load adjustment manners, and wherein the load adjustment manners are different from each other.

17. The power sourcing equipment of claim 16 , wherein the one or more processors are further configured to simultaneously send the load adjustment indications.

18. The power sourcing equipment of claim 16 , wherein the load adjustment manners comprise one or more of different load adjustment start time points, different load adjustment durations, different quantities of load adjustment times, different time intervals for adjacent load adjustment times, or different amplitudes of the output power changes.

19. A method implemented by power sourcing equipment, the

Assignees

• Huawei Tech Co Ltd

Inventors

• Gu Chao
• Xiang Jian
• Lu Qing
• Ji Guirong
• Fu Shiyong
• Yao Changxin

Classifications

• H02J4/00 Primary

  Circuit arrangements for mains or distribution networks not specified as AC or DC; Circuit arrangements for mains or distribution networks combining AC and DC sections or sub-networks (arrangements using intermediate DC-AC-DC conversion H02J1/002; arrangements using high-voltage DC [HVDC] links H02J3/36) · CPC title

• H04B10/564

  Power control · CPC title

• H04B10/808

  Electrical power feeding of an optical transmission system · CPC title

• G06F1/266

  Arrangements to supply power to external peripherals either directly from the computer or under computer control, e.g. supply of power through the communication port, computer controlled power-strips · CPC title

• H04L12/10 Primary

  Current supply arrangements · CPC title