A road inclination estimating apparatus is configured to acquire power spectrum density of vertical vibration by a frequency analysis based on the detected vertical acceleration of the sprung mass of a vehicle. The apparatus is configured to determine that a first estimation condition is satisfied, when the power spectrum density has two of the acquired peak frequencies, wherein, one of the two of the peak frequencies is within a predetermined first frequency range, and the other one of the two of the peak frequencies is within a predetermined second frequency range.

A road inclination estimating apparatus is configured to acquire power spectrum density of vertical vibration by a frequency analysis based on the detected vertical acceleration of the sprung mass of a vehicle. The apparatus is configured to determine that a first estimation condition is satisfied, when the power spectrum density has two of the acquired peak frequencies, wherein, one of the two of the peak frequencies is within a predetermined first frequency range, and the other one of the two of the peak frequencies is within a predetermined second frequency range.

An electronic shelf label, which comprises: a display unit, which is designed for displaying image content, and a communication module, which is designed for wireless communication for the purpose of receiving image data, which represent the image content, and for transferring the image data to the display unit,
characterized in that a detector unit is provided, which is designed for detecting an incorrect positioning, which differs from a desired positioning, of the electronic shelf label, and for outputting an action signal when the incorrect positioning is detected, and in that the electronic shelf label is designed to change the image content when the action signal is present.

An electronic shelf label, which comprises: a display unit, which is designed for displaying image content, and a communication module, which is designed for wireless communication for the purpose of receiving image data, which represent the image content, and for transferring the image data to the display unit,
characterized in that a detector unit is provided, which is designed for detecting an incorrect positioning, which differs from a desired positioning, of the electronic shelf label, and for outputting an action signal when the incorrect positioning is detected, and in that the electronic shelf label is designed to change the image content when the action signal is present.

A Light Detection and Ranging (LIDAR) system integrated in a vehicle includes a LIDAR transmitter configured to transmit laser beams into a field of view, the field of view having a center of projection, and the LIDAR transmitter including a laser to generate the laser beams transmitted into the field of view. The LIDAR system further includes a LIDAR receiver including at least one photodetector configured to receive a reflected light beam and generate electrical signals based on the reflected light beam. The LIDAR system further includes a controller configured to receive feedback information and modify a center of projection of the field of view in a vertical direction based on the feedback information.

A Light Detection and Ranging (LIDAR) system integrated in a vehicle includes a LIDAR transmitter configured to transmit laser beams into a field of view, the field of view having a center of projection, and the LIDAR transmitter including a laser to generate the laser beams transmitted into the field of view. The LIDAR system further includes a LIDAR receiver including at least one photodetector configured to receive a reflected light beam and generate electrical signals based on the reflected light beam. The LIDAR system further includes a controller configured to receive feedback information and modify a center of projection of the field of view in a vertical direction based on the feedback information.

A vehicle windshield testing assembly includes a test table, a plurality of supports, a vehicle windshield, and a testing fixture. The test table is configured to be adjustable about a first axis and a second axis. The plurality of supports is movably connected to the test table. The vehicle windshield is supported by the plurality of supports. The testing fixture supported by the plurality of supports. The testing fixture includes a plurality of hollow sleeves configured to receive a testing object. Each of the hollow sleeves has an opening facing the vehicle windshield.

A vehicle windshield testing assembly includes a test table, a plurality of supports, a vehicle windshield, and a testing fixture. The test table is configured to be adjustable about a first axis and a second axis. The plurality of supports is movably connected to the test table. The vehicle windshield is supported by the plurality of supports. The testing fixture supported by the plurality of supports. The testing fixture includes a plurality of hollow sleeves configured to receive a testing object. Each of the hollow sleeves has an opening facing the vehicle windshield.

Systems and methods of detecting when an automatic swimming pool cleaner (APC) has contacted a main drain cover or other object protruding from a surface of a swimming pool are described. An APC may include equipment for detecting a change in its pitch or yaw (or both its pitch and yaw). Changes in pitch and yaw may be determined as a function of time, identifying encounters of the APC with certain protruding objects.

Systems and methods of detecting when an automatic swimming pool cleaner (APC) has contacted a main drain cover or other object protruding from a surface of a swimming pool are described. An APC may include equipment for detecting a change in its pitch or yaw (or both its pitch and yaw). Changes in pitch and yaw may be determined as a function of time, identifying encounters of the APC with certain protruding objects.