公开(公告)号：US11080404B2

公开(公告)日：2021-08-03

申请号：US16576807

申请日：2019-09-20

Applicant: UBTECH ROBOTICS CORP LTD

Inventor： Malin Wang ,  Youjun Xiong ,  Xi Bai ,  Wenhua Fan ,  Sheng Zhou ,  Jianxin Pang

IPC: G06F8/654 ,  G06F9/4401 ,  G06F21/57 ,  G06F13/40 ,  G06F8/65

Abstract: A firmware upgrade method for a slave station of a robot communicates with a master station of the robot via an EtherCAT bus of the robot, includes: switching a work mode of the slave station to an upgrade mode in response to a firmware upgrade instruction, receiving a new firmware corresponding to this firmware upgrade via the EtherCAT bus, storing the new firmware in a second storage area of a flash memory of the slave station, restarting the slave station after the new firmware is received, and copying the new firmware stored in the second storage area to a first storage area of the flash memory and executing the new firmware in the first storage area when the slave station is started. A slave station of the robot and a machine readable storage medium are also provided.

公开(公告)号：US11418023B2

公开(公告)日：2022-08-16

申请号：US16535112

申请日：2019-08-08

Applicant: UBTECH ROBOTICS CORP LTD

Inventor： Youjun Xiong ,  Sheng Zhou ,  Malin Wang ,  Wenhua Fan ,  Jianxin Pang

IPC: H02H9/02 ,  G01R33/07 ,  G01R33/00

Abstract: A current protection circuit for a high voltage system includes: a power supply module to supply power to a load through a high voltage bus and a low voltage bus; a detection module connected to the high voltage bus and used to detect a value of current flowing through the high voltage bus; a signal processing module electrically connected to the detection module and used to amplify the current flowing through the high voltage bus; and a control module electrically connected to the signal processing module, the power supply module, and the load, and used to disconnect the load from the power supply module or perform current limiting for the load when the value of the amplified current exceeds a preset threshold.