Group 1 - The core viewpoint of the article highlights that Zhejiang Dahua Technology Co., Ltd. has obtained a patent for a "permission control method, permission control device, and computer storage medium" with the authorization announcement number CN119004420B, applied on October 2024 [1] - Zhejiang Dahua Technology Co., Ltd. was established in 2001 and is located in Hangzhou, primarily engaged in software and information technology services [1] - The company has a registered capital of 3,274.039542 million RMB and has invested in 71 enterprises, participated in 5,000 bidding projects, and holds 310 trademark records and 5,000 patent records, along with 406 administrative licenses [1]