公开(公告)号：EP4381258A1

公开(公告)日：2024-06-12

申请号：EP21952342.0

申请日：2021-08-05

申请人： ABB SCHWEIZ AG

发明人： CHEN, Yanguo ,  LU, Congwen ,  CHEN, Chunfa ,  CHUAI, Guoming ,  CHEN, Junqiang

IPC分类号： G01K1/02 ,  G01K13/00

CPC分类号： G01K1/18 ,  G01K1/026 ,  H02B13/065

公开(公告)号：EP4394327A1

公开(公告)日：2024-07-03

申请号：EP23198336.2

申请日：2023-09-19

申请人： ABB Schweiz AG

发明人： CHEN, Xu ,  CHEN, Junqiang ,  XU, Xiaofeng ,  LIU, Jing

IPC分类号： G01D3/08 ,  H02J9/00

CPC分类号： G01D3/08

摘要： Embodiments of the present disclosure provide sensor device. The sensor device comprises a power supply management unit configured to selectively receive internal electric energy or external electric energy and supply power to an internal circuit; a port adapted to be coupled to a sensing apparatus for providing the external electric energy or an external auxiliary power supply; a signal detection unit having a first end coupled to the power supply management unit and a second end coupled to the port, the signal detection unit being configured to generate a sensing signal when the port is coupled to the sensing apparatus; and an external auxiliary power supply switching-on unit having a first end coupled to the power supply management unit and a second end coupled to the port, the external auxiliary power supply switching-on unit being configured to transmit the electric energy to the power supply management unit in response to receiving electric energy from the port when the port is coupled to the external auxiliary power supply. In this way, through port multiplexing, the number of ports and wiring can be reduced, thereby reducing the size of the sensor.