The welding line detection system includes a photographing unit that photographs an image of an object to be welded, a coordinate system setting unit that sets a user coordinate system based on a marker included in the photographed image, a point-group-data plotting unit that detects a specific position of the marker on the basis of the image, sets the detected specific position on point group data acquired by a distance measurement sensor that measures a distance to the object to be welded, and plots, in the user coordinate system, the point group data to which coordinates in the user coordinate system, using the set specific position as an origin, are given, and a welding line detection unit that detects, on the basis of the point group data plotted in the user coordinate system, a welding line of the object to be welded.

The welding line detection system includes a photographing unit that photographs an image of an object to be welded, a coordinate system setting unit that sets a user coordinate system based on a marker included in the photographed image, a point-group-data plotting unit that detects a specific position of the marker on the basis of the image, sets the detected specific position on point group data acquired by a distance measurement sensor that measures a distance to the object to be welded, and plots, in the user coordinate system, the point group data to which coordinates in the user coordinate system, using the set specific position as an origin, are given, and a welding line detection unit that detects, on the basis of the point group data plotted in the user coordinate system, a welding line of the object to be welded.

A first behaviometric user profile for a first user is generated and stored, by detecting a position and velocity of the first user relative to the mobile device based on a received response from a radar transmission while the first user uses the mobile device, the received response over time indicating a position and velocity of the first user. Based on further received responses of additional radar transmissions an additional behavioral pattern of an unknown user is determined. The additional behavioral pattern is then compared to the first behaviometric user profile, and based on the comparison, a measure of similarity between the first behaviometric user profile and the additional behavioral pattern, measuring if the first user and the unknown user are a same user is heuristically determined. As a result of the comparison, operation or access to at least some data stored on the mobile device is prevented.

An electronic device according to various embodiments of the present disclosure may include a wireless communication circuit, a memory, and a processor operatively connected to the memory and the wireless communication circuit, wherein the memory stores instructions that when executed cause the processor to start a ranging round by transmitting, to an external electronic device, a ranging control message (RCM) including transmission control information of data to be transmitted, to perform ranging based on the ranging control message, and upon completion of ranging, to transmit, based on the transmission control information included in the ranging control message, the data in a slot allocated in the ranging round.

An electronic device according to various embodiments of the present disclosure may include a wireless communication circuit, a memory, and a processor operatively connected to the memory and the wireless communication circuit, wherein the memory stores instructions that when executed cause the processor to start a ranging round by transmitting, to an external electronic device, a ranging control message (RCM) including transmission control information of data to be transmitted, to perform ranging based on the ranging control message, and upon completion of ranging, to transmit, based on the transmission control information included in the ranging control message, the data in a slot allocated in the ranging round.

A radar system and a terminal device are provided. The radar system includes a controller and at least two radar modules directly or indirectly connected to the controller. The at least two radar modules include a first radar module and a second radar module, and the first radar module and the second radar module implement time division multiplexing of the controller in a digital domain. Compared with an existing radar system, the radar system in this application can provide more transmit channels, more receive channels, and a larger antenna array size when the two radar systems include a same quantity of controllers.

A radar system and a terminal device are provided. The radar system includes a controller and at least two radar modules directly or indirectly connected to the controller. The at least two radar modules include a first radar module and a second radar module, and the first radar module and the second radar module implement time division multiplexing of the controller in a digital domain. Compared with an existing radar system, the radar system in this application can provide more transmit channels, more receive channels, and a larger antenna array size when the two radar systems include a same quantity of controllers.

An example of an apparatus includes a support member to support equipment above a stage. The apparatus also includes a range sensor rotatably mounted to the support member. The range sensor is to measure a distance to the stage. In addition, the apparatus includes a leveling mechanism to rotate the range sensor to measure the distance along a vertical direction. The apparatus further includes an output device to transmit the distance to a user.

An example of an apparatus includes a support member to support equipment above a stage. The apparatus also includes a range sensor rotatably mounted to the support member. The range sensor is to measure a distance to the stage. In addition, the apparatus includes a leveling mechanism to rotate the range sensor to measure the distance along a vertical direction. The apparatus further includes an output device to transmit the distance to a user.

An arrangement (100, 200, 300) for monitoring of at least one distance between antenna units, the arrangement comprising at least two antenna units (104, 106, 116, 118, 136, 138), each antenna unit being associated with a radio unit (108, 110), the arrangement additionally comprising at least one radio unit being associated with at least one of the at least two antenna units, and at least one processor. The two antenna units are configured to placed at at least first and second locations, the arrangement being configured to execute at least two measurement cycles wherein during each measurement cycle the arrangement is configured to transmit at least one signal via antenna units one at a time and determine phase information for said signals being received by remaining antenna units. Distance variables determined based on the phase information are used to determine a change in distance between antenna units between measurement cycles.