POSITION DETECTION SYSTEM AND METHOD USING SENSOR

    公开(公告)号:US20220082689A1

    公开(公告)日:2022-03-17

    申请号:US17135118

    申请日:2020-12-28

    发明人: Ji Su Kim

    摘要: A position detection system using a sensor, including a sensor unit including a plurality of sensors for transmitting a transmission signal or receiving a reflection signal reflected from an obstacle and configured to acquire a time of flight (TOF) of the received reflection signal, a storage unit configured to pre-store a position map of the obstacle for respective sensors depending on the TOF of the reflection signal on a grid map including a plurality of cells, and a position estimator configured to estimate a position of the obstacle based on the TOF of the reflection signal received by the sensor unit and the position map of the obstacle pre-stored in the storage unit.

    BEAMFORMING SONAR SYSTEM WITH IMPROVED SONAR IMAGE FUNCTIONALITY, AND ASSOCIATED METHODS

    公开(公告)号:US20220035027A1

    公开(公告)日:2022-02-03

    申请号:US17159199

    申请日:2021-01-27

    申请人: Navico Holding AS

    发明人: Alan Lee Proctor

    摘要: A system is provided for imaging an underwater environment. The system includes one or more arrays of transducer elements. Each array is operated at a fixed phase shift and varies in frequency so as to beamform multiple sonar return beams of a first range of angles and a second range of angles. The arrays can be oriented to cover the gap in sonar coverage for other arrays to create a continuous arc of sonar coverage. Accordingly, a 2D live sonar image can be formed. One or more of the multiple sonar return beams facing downwardly can be selected and used to form downward sonar images that anglers are used to, without requiring separate transducer elements. Fish arches formed using multiple sonar return beams can be positioned appropriately within a high resolution downward sonar image to form a desirable combined sonar image.

    Ultrasonic measurement device and measurement method

    公开(公告)号:US11163033B2

    公开(公告)日:2021-11-02

    申请号:US16229086

    申请日:2018-12-21

    摘要: An ultrasonic measurement device includes an ultrasonic transceiver transmitting an ultrasonic wave and receiving a reflected wave from a target so as to output a reception signal, a scanner moving a transmission/reception position where the ultrasonic transceiver transmits and receives the ultrasonic wave along a first direction, and a position measurer measuring a position of the target. When the position measurer detects a plurality of reception signals corresponding to a plurality of reflection components caused by a difference in distances from the target at a first transmission/reception position in the first direction, the position measurer selects the reception signal based on a ratio between a voltage of the reception signals at a comparison transmission/reception position different from the first transmission/reception position and a voltage of the reception signals at the first transmission/reception position, and measures the position of the target based on the selected reception signal.

    Displacement measurement method and apparatus, and ultrasonic diagnostic apparatus

    公开(公告)号:US11026660B2

    公开(公告)日:2021-06-08

    申请号:US15651545

    申请日:2017-07-17

    申请人: Chikayoshi Sumi

    发明人: Chikayoshi Sumi

    摘要: A displacement measurement apparatus includes an ultrasound sensor transmitting ultrasounds to an object in accordance with a drive signal, and detecting ultrasound echo signals generated in the object to output echo signals; a driving and processing unit supplying the drive signal to the sensor, and processing the echo signals from the sensor to obtain ultrasound echo data; and a controller controlling the driving and processing unit to yield an ultrasound echo data frame at each of plural different temporal phases based on the ultrasound echo data obtained by scanning the object. The ultrasound echo data has one of local single octant spectra, local single quadrant spectra, and local single half-band-sided spectra in a frequency domain. The ultrasound echo data is obtained from plural same bandwidth spectra. A data processing unit calculates a displacement at each local position or distribution thereof in at least one of axial, lateral, and elevational directions by solving simultaneous equations derived at each local position via implementing a predetermined displacement measurement method on the ultrasound echo data yielded at the plural different temporal phases with respect to at least one of the axial, lateral, and elevational carrier frequencies and the phase, or the one of the local single octant spectra, the local single quadrant spectra, and the local single half-band-sided spectra.

    Electronic device and system and method for diving

    公开(公告)号:US11008080B1

    公开(公告)日:2021-05-18

    申请号:US16679159

    申请日:2019-11-09

    发明人: Kui Ma

    摘要: A control method of an electronic device system for diving is provided. The control method includes steps of sending a positioning request signal to the slave device; receiving a feedback signal sent by the slave device, the feedback signal is generated by the slave device responding to the positioning request signal, the feedback signal includes water pressure data; according to the time difference between the sending time of the positioning request signal and the receiving time of the feedback signal, and the signal transmission speed, the relative distance with the slave device is calculated; obtaining the relative direction between the slave device and the master device according to the incoming direction of the feedback signal received by the ultrasonic receiver; calculating the relative depth with the slave device according to the water pressure data in the feedback signal. Furthermore, an electronic device and system for diving are also provided.

    Measuring apparatus and method
    99.
    发明授权

    公开(公告)号:US10996331B2

    公开(公告)日:2021-05-04

    申请号:US15900253

    申请日:2018-02-20

    摘要: According to one embodiment, a measuring apparatus includes an ultrasonic transmitter, an ultrasonic receiver and an estimator. An ultrasonic transmitter transmits, as a transmission signal, an ultrasonic beam in a plurality of directions. An ultrasonic receiver receives, as received signals, reflected waves of the transmission signal from the plurality of directions, one received signal including a plurality of reflected waves when the transmission signal is transmitted to one direction of the plurality of directions. An estimator that estimates range information from the received signals, based on preliminarily obtained received signals and a preliminarily obtained distance to an object.