Alibaba Group Holding Limited

Hangzhou Donghua Chain Group Co., Ltd.

Bin Ye

Hongjun Wang

Lili Wang

Bin Sun

Bihua Xuan

Jiguang Lu

Jiancong Zhang

Jiayong Liu

The disclosure relates to a chain intelligent pre-tensioning and chain length detection method and device thereof. The device includes a rack, a work platform, a pre-tensioning power device, a measuring power device, a length measuring device and a console. The console receives the information of the length measuring device to adjust and control the pre-tensioning power device. The pre-tensioning and chain length measurement adopts a combination structure of an independently operated screw loading system as well as two sets of unique straight guide rails and four pallets mounted on the guide rail. The pre-tensioning force loading adopts the servo system and works with decelerator and precision grinding screw for loading. The measuring force loading adopts stepper motor and works with precision grinding screw for loading. The pretension and measurement adopt two tensile force sensors, so that chain pre-tensioning force and the chain length measuring force can be controlled accurately.

Chain intelligent pre-tensioning and chain length detection method and device thereof

Techniques for text message transmission are described herein. These techniques may include collecting multiple user IDs for electronic commerce. Using the user IDs, a server transmits a text message to multiple clients, and obtains activities of particular clients of the multiple clients in response to the text message to determine particular user IDs associated with the particular clients. Based on the obtained activities, the server generates and/or updates a graylist that includes one or more user IDs of the multiple user IDs different from the particular user IDs.

Method and system of creating a graylist for message transmission

Growing community of inventors

Hangzhou, China

Bin Ye