Abstract: A crystalline form I of 1,4-BIS[1,2-BENZISOSELENAZOL-3(2H)-one]-butane has characteristic peaks at 2? angles of 6.17±0.20°, 12.28±0.20°, 18.44±0.20°, 25.92±0.20° and 30.95±0.20° by X-ray powder diffraction using Cu-K? radiation.

Abstract: Disclosed are an information collection method, a device and a storage medium. An autonomous mobile device may collect environmental information by means of a structured light module, and may collect, in a supplementary manner, obstacle information within a blind area range of the structured light module by executing an omission remediation action, such that the autonomous mobile device detects richer and more accurate environmental information during a task execution process, thereby avoiding omitting information of lower obstacles. The obstacles can be avoided and an environmental map can be constructed according to the detected obstacle information, thereby providing a foundation for subsequent working task execution and obstacle avoidance.