A method for identifying a road condition of a road. A piece of road condition information representing the road condition is determined using a noise level detected by at least one ultrasonic sensor of a vehicle and a bottom echo detected from a road surface in the area of the vehicle.

An air data sensor can include an acoustic transmitter configured to output an acoustic signal into an airflow and a plurality of acoustic transducers configured to receive the acoustic signal output by the acoustic transducer. The air data sensor can also include a light source configured to output a light beam into the airflow, and a light receiver configured to receive scattered light from the light beam. The light source and the light receiver can be bistatic such that a measurement zone is formed away from the air data sensor.

Technologies and techniques for providing assistance to a motor vehicle during a process of exiting a lateral parking space. A device is configured with at least one surroundings sensor system and at least one control unit with an assigned memory to acquire successive values of distances from adjacent motor vehicles during a parking process and to store them in a map of the surroundings. The device may be designed in such a way that, before the start of the process of exiting a parking space, current values of distances from the adjacent motor vehicles are acquired and compared with the distance values stored in the map of the surroundings, wherein, when they correspond, a parking-space-exiting trajectory is made available by means of the map of the surroundings.

Technologies and techniques for providing assistance to a motor vehicle during a process of exiting a lateral parking space. A device is configured with at least one surroundings sensor system and at least one control unit with an assigned memory to acquire successive values of distances from adjacent motor vehicles during a parking process and to store them in a map of the surroundings. The device may be designed in such a way that, before the start of the process of exiting a parking space, current values of distances from the adjacent motor vehicles are acquired and compared with the distance values stored in the map of the surroundings, wherein, when they correspond, a parking-space-exiting trajectory is made available by means of the map of the surroundings.

In some implementations, a method of verifying operation of a sensor is provided. The method includes causing a sensor to obtain sensor data at a first time, wherein the sensor obtains the sensor data by emitting waves towards a detector. The method also includes determining that the detector has detected the waves at a second time. The method further includes receiving the sensor data from the sensor at a third time. The method further includes verifying operation of the sensor based on at least one of the first time, the second time, or the third time.

Certain aspects of the present disclosure provide techniques for sensor calibration. First sensor data is received from a first sensor and second sensor data is received from a second sensor, where the first sensor data and the second sensor data each indicate detected objects in a space. The first sensor data is transformed using a first transformation profile to convert the first sensor data to a coordinate frame of the second sensor data. The first transformation profile is refined based on a difference between the transformed first sensor data and the second sensor data.

For assistance viewing an object, a computer system receives first data from a first sensor sensing an object when a user's view of at least a portion of the object is obstructed by a hand of the user. The first sensor is fixed to a first wearable device. The computer system generates an image of the obstructed portion of the object in response to the first data. An image of the obstructed portion of the object is projected onto a surface within a view of the user.

Disclosed is a device and a method for measuring stream water depth in real-time through positioning data filtering to ensure the reliability of the measured water depth data even when the stream water depth measurement data is filtered and applied to a small stream having a small basin area and a steep slope. The device for measuring stream water depth in real-time through positioning data filtering includes: a measuring part for measuring the water depth of a stream to be measured; a positioning data filtering part for filtering the water depth data measured by the measuring means by a local linear regression-based bivariate scatterplot smoothing technique through elastic bandwidth application; and a water depth calculating part for calculating a water depth of the stream to be measured by using the positioning data filtered by the positioning data filtering part, and minimizing the uncertainty of the water depth measurement.

A method of sensing a three-dimensional (3D) space using at least one sensor is proposed. The method can include acquiring spatial information over time for the sensed 3D space, applying a neural network based object classification model to the acquired spatial information over time to identify at least one object in the sensed 3D space. The method can also include tracking the sensed 3D space including the identified at least one object, and using information related to the tracked 3D space.

A method of assisting in piloting an aircraft having a fuselage, the aircraft having a first side arrangement and a second side arrangement, which arrangements are disposed laterally on either side of the fuselage, and each of them participates in the movement of the aircraft. During an assistance phase, the method includes the following steps: measuring a value of a first ground clearance of the first side arrangement and a value of a second ground clearance of the second side arrangement; and displaying on a screen at least one symbol that varies as a function of the variation in the value of the first ground clearance and/or of the variation in the value of the second ground clearance.