Method and device for abnormality detection of optical access device, and storage medium

A method for abnormality detection of at least one optical access device, comprising:

• obtaining an offline situation of the at least one optical access device within a preset time period;
• broadcasting fourth information in response to the offline situation satisfying a preset detection condition, wherein the fourth information indicates one or more in-service first optical access devices in the at least one optical access device to suspend a registration process within a plurality of discovery windows used for registration;
• collecting optical signal strength within the plurality of discovery windows respectively to obtain a plurality of signal strength values;
• determining, based on the plurality of signal strength values, whether an abnormal optical access device exists in the at least one optical access device;
• and
• when N consecutive signal strength values in the plurality of signal strength values are all greater than a preset strength value, determining that the abnormal optical access device exists in the at least one optical access device, wherein N is a positive integer greater than or equal to 2.