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A motion detector attached to an outdoor, automatic light. A motion detector is an electrical device that utilizes a sensor to detect nearby motion (motion detection).Such a device is often integrated as a component of a system that automatically performs a task or alerts a user of motion in an area.
For example, a device with an accelerometer can detect rotation from vertical to horizontal state in a fixed location. As a result, accelerometers are primarily used for simple motion sensing applications in consumer devices such as changing the screen of a mobile device from portrait to landscape orientation.
By acting segmentation among moving objects and stationary area or region, [3] the moving objects' motion can be tracked and thus analyzed later. To achieve this, consider a video is a structure built upon single frames, moving object detection is to find the foreground moving target(s), either in each video frame or only when the moving target ...
As required by COLREGS, all ships shall maintain a proper radar lookout if it is available on board to obtain early warning of risk of collision.Radar plotting with the use of an EBL and VRM, or the ARPA should be used to determine the information of movement and the risk of collision of other ships in vicinity. [4]
Motion tracker can refer to: Motion detector , a device that utilizes a sensor to detect nearby motion Motion capture , the process of recording the movement of objects or people
Inertial systems are devices that measure a vessel position over time with motion sensors and gyroscopes. These devices estimate future positions based off velocity, acceleration, and orientation measurements. Detected anomalies that stray from the expected pattern can be flagged for closer inspection.
The part of the pitometer protruding from the ship is sometimes called a pit sword or rodmeter. This tube usually has two openings: one facing the direction of seawater motion that is used to measure the dynamic pressure of the seawater and one at 90° to the direction of seawater motion that is used to measure the static seawater pressure.
Motion compensators are usually placed between a floating object and a more stationary object, such as a vessel or a structure fixed to the seabed. Most general motion compensators will compensate for movement in all directions The simplest motion compensator is the anchor chain of a ship. Not only does the anchor prevent the ship from drifting ...
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