公开(公告)号：US11892186B2

公开(公告)日：2024-02-06

申请号：US17269436

申请日：2019-09-04

Applicant: Toshiba Carrier Corporation

Inventor： Takashi Nakajo ,  Masato Abe ,  Nariya Komazaki

IPC: F24F11/65 ,  F24F11/54 ,  F24F11/58 ,  F24F11/61 ,  F24F1/0007 ,  F24F1/26 ,  G05B19/045 ,  G08C19/22

CPC classification number: F24F11/65 ,  F24F1/0007 ,  F24F1/26 ,  F24F11/54 ,  F24F11/58 ,  F24F11/61 ,  G05B19/045 ,  G08C19/22 ,  G05B2219/25268 ,  G05B2219/2614

Abstract: A detection device is connected to a plurality of communication devices by a communication line. The detection device has a reception unit, a measurement unit, and a detection unit. The reception unit receives signals with prescribed pulse widths transmitted from the plurality of communication devices, respectively. The measurement unit measures the pulse widths of the signals received by the reception unit. The detection unit is configured to detect the communication device disposed near a terminal end of the communication line as a terminal-end communication device on the basis of the plurality of pulse widths measured by the measurement unit.