Title:
物体検知装置
Document Type and Number:
Japanese Patent JP7354951
Kind Code:
B2
Abstract:
An object detection device includes a transceiver configured to transmit/receive an ultrasonic wave; a drive signal generation unit configured to generate a drive signal for driving the transceiver; a transmitter circuit configured to cause the transceiver to transmit a probe wave, which is an ultrasonic wave, by driving the transceiver based on the drive signal; and a receiver circuit configured to generate a reception signal corresponding to a reception result of the ultrasonic wave of the transceiver, wherein the drive signal generation unit is configured to generate the drive signal so that frequency of the probe wave changes over time. The device further includes: a voltage measurement unit configured to measure a voltage signal generated in the transceiver while the transceiver transmits the probe wave with frequency changing over time; and a state determination unit configured to make a state determination regarding the transceiver based on the voltage signal.
Inventors:
Shoya Ishida
Yu Koyama
Tetsuya Aoyama
Yu Koyama
Tetsuya Aoyama
Application Number:
JP2020119424A
Publication Date:
October 03, 2023
Filing Date:
July 10, 2020
Export Citation:
Assignee:
株式会社ＳＯＫＥＮ
International Classes:
G01S7/52
Domestic Patent References:
| JP56075686A | ||||
| JP4291188A | ||||
| JP2020509378A | ||||
| JP2010220466A |
Foreign References:
| US20190079173 | ||||
| WO2018139192A1 |
Attorney, Agent or Firm:
Patent Attorney Corporation Yuuai Patent Office