US 12,282,369 B1
Power-off protection method and apparatus, device, and storage medium
Hung Hsin Chen, Suzhou (CN); Bo Hsiung Chi, Suzhou (CN); and Yen Cheng Lu, Suzhou (CN)
Assigned to Suzhou MetaBrain Intelligent Technology Co., Ltd., Suzhou (CN)
Appl. No. 18/859,048
Filed by Suzhou MetaBrain Intelligent Technology Co., Ltd., Suzhou (CN)
PCT Filed Jun. 16, 2023, PCT No. PCT/CN2023/100672
§ 371(c)(1), (2) Date Oct. 22, 2024,
PCT Pub. No. WO2024/139076, PCT Pub. Date Jul. 4, 2024.
Claims priority of application No. 202211692582.5 (CN), filed on Dec. 28, 2022.
Int. Cl. G06F 1/28 (2006.01)
CPC G06F 1/28 (2013.01) 20 Claims
OG exemplary drawing
 
1. A power-off protection method, being applied to power sourcing equipment (PSE), comprising:
in response to the PSE being about to stop supplying power to a power device (PD) within a predetermined time, sending a first link layer discovery protocol (LLDP) message to the PD, wherein the first LLDP message comprises a power-off type length value (TLV);
receiving a second LLDP message, which is replied by the PD according to the first LLDP message, wherein the second LLDP message comprises a delayed power off reply message which is determined when the predetermined time in the power-off type length value is less than a process remaining time of a currently executed task of the PD; and
powering off the PD according to the second LLDP message.