Group 1 - Chongqing Changan Automobile Co., Ltd. applied for a patent titled "Time Synchronization Method, Device, Electronic Equipment and Storage Medium" with publication number CN120454911A, filed on June 2025 [1] - The patent involves a time synchronization method that monitors the status of the time system and switches to a backup link or clock in case of failures, ensuring stability and security of time synchronization [1] - The method allows for quick switching to a main redundant link or hot backup clock during failures, maintaining synchronization even when both the main clock and link fail [1] Group 2 - Chongqing Changan Automobile Co., Ltd. was established in 1996 and is primarily engaged in the automotive manufacturing industry, with a registered capital of approximately 992.18 million RMB [2] - The company has invested in 119 enterprises and participated in 5,000 bidding projects, holding 3,129 trademark records and 5,000 patent records [2] - Additionally, the company possesses 964 administrative licenses [2]