Solid-state lidar module, method for packaging solid-state lidar module, and system for packaging solid-state lidar module

A method of packaging a solid-state LiDAR module, the method comprising:

• performing laser welding, based on historical output parameters, on a front shell and a rear shell of a solid-state LiDAR module for packaging, collecting weld seam parameters between the front shell and the rear shell after the packaging, wherein, the historical output parameters comprise a laser power and a welding speed;
• and the weld seam parameters comprise a penetration depth, a weld width, and an extent of flatness;
• comparing the extent of flatness with a predetermined standard extent of flatness to determine whether the historical output parameters need to be adjusted;
• in response to determining that any of the historical output parameters needs to be adjusted, adjusting the welding speed, based on a difference between the extent of flatness and the standard extent of flatness, so as to obtain a final welding speed value;
• setting a plurality of sampling points on the weld seam to collect the penetration depth and the weld width at each of the plurality of sampling points;
• comparing the penetration depth at each point with a predetermined standard penetration range to obtain a depth comparison result;
• comparing the weld width at each point with a predetermined standard width range to obtain a width comparison result;
• determining, based on the depth comparison result and the width comparison result, whether to adjust the laser power;
• in response to determining that the laser power needs to be adjusted, calculating a standard deviation of the penetration depth and a standard deviation of the weld width;
• obtaining, based on the standard deviation of the penetration depth, the standard deviation of the weld width, and the number of non-compliant sampling points of the plurality of sampling points, a laser power adjustment coefficient;
• adjusting the laser power according to the laser power adjustment coefficient to obtain a final laser power value;
• wherein, before the comparing the extent of flatness with a predetermined standard extent of flatness, the method further comprises:
• obtaining external image information and internal image information of the weld seam, and determining whether any crack is formed in the external image information and the internal image information;
• in response to determining that no crack is formed, determining that the extent of flatness is the standard extent of flatness;
• in response to determining that at least one crack is formed, calculating a sum of lengths of all of the at least one crack and a sum of depths of all of the at least one crack, and calculating the extent of flatness based on a following formula:
• P
• =
• P
• ⁢
• 0
• *
• a
• +
• P
• ⁢
• 0
• *
• b
• ;
• wherein, the P denotes the extent of flatness, the P0 denotes the standard extent of flatness, the a denotes a weighting coefficient of the sum of lengths, and the b denotes a weighting coefficient of the sum of depths, each of the a and the b is in a range of [0, 0.5).