US 12,318,920 B2
Safety system, joint assembly with safety system, and robot having joint assembly
Xiyang Yeh, Shanghai (CN); Chenghao Wang, Santa Clara, CA (US); and Peizhang Zhu, Shanghai (CN)
Assigned to SHANGHAI FLEXIV ROBOTICS TECHNOLOGY CO., LTD., Shanghai (CN); and FLEXIV LTD., Grand Cayman (GB)
Appl. No. 17/997,256
Filed by SHANGHAI FLEXIV ROBOTICS TECHNOLOGY CO., LTD., Shanghai (CN); and FLEXIV LTD., Cayman Islands (GB)
PCT Filed Oct. 12, 2021, PCT No. PCT/CN2021/123217
§ 371(c)(1), (2) Date Oct. 27, 2022,
PCT Pub. No. WO2023/060423, PCT Pub. Date Apr. 20, 2023.
Prior Publication US 2024/0217124 A1, Jul. 4, 2024
Int. Cl. B25J 19/00 (2006.01); B25J 9/16 (2006.01); B25J 13/08 (2006.01); B25J 17/00 (2006.01); B25J 19/06 (2006.01)
CPC B25J 19/0004 (2013.01) [B25J 9/1674 (2013.01); B25J 13/085 (2013.01); B25J 13/088 (2013.01); B25J 17/00 (2013.01); B25J 19/06 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A safety system of a joint assembly, the joint assembly including a motor and a brake coupled to the motor, the safety system comprising:
at least one set of sensors configured to detect at least one parameter associated with safety function of the joint assembly;
a driving circuit coupled to the motor and the brake and arranged within the joint assembly; and
a first processor and a second processor arranged within the joint assembly, and configured to receive a signal indicative of the at least one parameter from the at least one set of sensors and send a stop command directly to the driving circuit to stop the motor in response to a joint fault determined based on the signal received from the at least one set of sensors;
wherein the first processor and the second processor are configured to communicate with each other, and send a notification to each other when determining there is a joint failure.