METHOD FOR CONTROLLING INFRARED ILLUMINATION SOURCE

    公开(公告)号:US20250168475A1

    公开(公告)日:2025-05-22

    申请号:US18884873

    申请日:2024-09-13

    Applicant: Axis AB

    Abstract: A method and a video capturing system for controlling at least one infrared (IR) illumination source, illuminating an area captured by a camera, the method comprising modulating emission from the IR illumination source between first and second emission intensities at a first frequency during a first predetermined time period. Upon capturing images using an image sensor of the camera during the first predetermined time period, determining a radiation level indicator for each of a plurality of images captured by the image sensor. Further, evaluating a sequence of determined radiation level indicators to determine whether a frequency resulting from the modulated emission at the first frequency is detected in the sequence of radiation level indicators. If the frequency resulting from the modulated emission at the first frequency is determined as not detected in the sequence of radiation level indicators, the IR illumination source is stopped.

    Focusing of a camera monitoring a scene

    公开(公告)号:US10247909B2

    公开(公告)日:2019-04-02

    申请号:US15802612

    申请日:2017-11-03

    Applicant: Axis AB

    Abstract: Focusing of a monitoring camera (100) with day and night functionality comprises selecting a focusing day mode or a focusing night mode based on the camera being in day mode or night mode. In focusing day mode, an IR laser range meter (110) will measure a reference distance continuously, and in the focusing night mode the IR laser range meter will only measure reference distance in response to a focus trigger signal being activated, and during a predetermined time period. The focus distance of the camera is set based on the measured reference distance.

    UTILITY BOX CAMERA MOUNT
    4.
    发明申请

    公开(公告)号:US20250068043A1

    公开(公告)日:2025-02-27

    申请号:US18943887

    申请日:2024-11-11

    Applicant: Axis AB

    Inventor: Kent Fransson

    Abstract: A camera system may include a utility box having a wall plate, a camera mounted in the utility box, magnets, wherein the magnets generate an attractive force to mount the camera to the wall plate of the utility box, a guide pin protruding from the camera or the wall plate of the utility box, and a recess to receive the guide pin, wherein the recess is located in the camera or in the wall plate of the utility box, wherein the guide pin limits motion of the camera when the camera is mounted on the wall plate of the utility box.

    Operation control of battery-powered devices

    公开(公告)号:US10812709B2

    公开(公告)日:2020-10-20

    申请号:US16220997

    申请日:2018-12-14

    Applicant: Axis AB

    Abstract: A power control system for controlling operation of a first battery-powered device positioned at a remote location from a camera. The power control system includes a receiving module, a retrieving module, a comparison module, and a transmission module. The receiving module is configured to receive at least one of a pan angle and a tilt angle of the camera indicative of a field of view. The retrieving module is configured to retrieve a position of the first battery-powered device. The comparison module is configured to compare the pan angle and the tilt angle with the position of the first battery-powered device, and determine whether the first battery-powered device is positioned within the field of view of the camera based on the comparison. The transmission module is configured to transmit instructions to control power consumption of the first battery-powered device, based on the determination.

    OPERATION CONTROL OF BATTERY-POWERED DEVICES

    公开(公告)号:US20190199923A1

    公开(公告)日:2019-06-27

    申请号:US16220997

    申请日:2018-12-14

    Applicant: Axis AB

    Abstract: A power control system for controlling operation of a first battery-powered device positioned at a remote location from a camera. The power control system includes a receiving module, a retrieving module, a comparison module, and a transmission module. The receiving module is configured to receive at least one of a pan angle and a tilt angle of the camera indicative of a field of view. The retrieving module is configured to retrieve a position of the first battery-powered device. The comparison module is configured to compare the pan angle and the tilt angle with the position of the first battery-powered device, and determine whether the first battery-powered device is positioned within the field of view of the camera based on the comparison. The transmission module is configured to transmit instructions to control power consumption of the first battery-powered device, based on the determination.

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