A plurality of frequency orthogonal signals are transmitted into a person. At least one of the plurality of frequency orthogonal signals is received at a receiving antenna or conductor. The received signal is measured. Characteristics of the received signal are used to establish a result related to that person.

A computer implemented method for detecting whether a seat belt is used in a vehicle comprises the following steps carried out by computer hardware components: acquiring an image of an interior of the vehicle; determining a plurality of sub-images based on the image; detecting, for at least one of the sub-images, whether a portion of the seat belt is present in the respective sub-image; and determining whether the seat belt is used based on the detecting.

A transportation vehicle having an actuator for automatically adjusting a windowpane and/or a sliding roof of the transportation vehicle; a UWB system having a UWB transceiver and a first and a second antenna, each of which sends and receives UWB pulses; and a control device connected to the UWB system and the actuator to carry out a method based on channel impulse response measurements for detecting objects in a collision region by using the first antenna and the second antenna, and to send a signal that is based on a result of the detection method to interrupt an automatic adjustment of a windowpane and/or a sliding roof of the transportation vehicle to the actuator. Also disclosed is a method and communication system for a transportation vehicle.

A centralized occupancy detection system enables monitoring of multiple seats, or more generally, multiple stations, with a single sensor. One illustrative vehicle includes: one or more stations each configured to accommodate an occupant of the vehicle, a radar-reflective surface, and a radar transceiver configured to use the radar-reflective surface to detect an occupant of at least one of the stations. Another illustrative vehicle includes: multiple stations to each accommodate an occupant of the vehicle, and a radar transceiver configured to examine each of the multiple stations to determine whether that station has an occupant.

An occupant detection apparatus includes a first detection unit, a second detection unit, and an occupant presence determination unit. The first detection unit detects an occupant present in a first region or a second region, among the plurality of regions. The second detection unit detects an occupant present in the second region or a third region, among the plurality of regions. The occupant presence determination unit determines whether an occupant is present in each of the first region, the second region and the third region, based on a first detection result obtained by the first detection unit and a second detection result obtained by the second detection unit.

The system and method provide for identification of dynamic objects in an enclosed space and the presence of a component in a primary location. The system uses an active electro-optical 3D sensor, such as a three-dimensional time of flight camera, to identify the presence or absence of a reflected pulse, to determine, for example, proper placement of a seat belt, or a change in characteristics of a reflected pulse to determine a change in location, and thus possible movement, of a living creature in a vehicle, for example.

A method and system for detecting a presence of at least one living being inside a cabin of a vehicle by radio signals. At least one transmission signal is transmitted from at least one transmission unit positioned at a transmission unit position inside the cabin towards a surveillance area of an interior of the cabin. Receiving responding signals from the surveillance area caused by a reflection of the transmission signal in the surveillance area with at least two receiving units each positioned at a receiving unit position inside the cabin, whereat all of the receiving unit positions are placed apart from each other and the responding signals are being received by anyone of the receiving units. Evaluating of the responding signals and detecting the presence of the living being in the surveillance area and triggering an action of at least one actuator of the vehicle.

A computer executable method for passengers boarding a vehicle includes: acquiring attribute information for each of passengers; determining a falling-down risk of each passenger individually based on the attribute information; tracking a high-risk person determined to have a high falling-down risk in a passenger compartment of the vehicle; and grasping a condition of the high-risk person individually in the passenger compartment.

Methods, systems, and apparatus for monitoring a vehicle. The system includes a sensor of the vehicle configured to detect sensor data indicating a presence of an object, occupant, or pet within the vehicle. The system also includes an electronic control unit (ECU) of the vehicle communicatively coupled to the sensor. The ECU is configured to determine whether the object, occupant, or pet is within the vehicle. The ECU is also configured to provide a notification to a user of the vehicle regarding the presence of the object, occupant, or pet within the vehicle.

An attraction system includes a sensor configured to emit an output signal toward a guest area and receive a reflected signal from the guest area and a control system communicatively coupled to the sensor. The control system is configured to receive data from the sensor, in which the data is indicative of a distance of signal travel based on the output signal and the reflected signal. The control system is also configured to compare the distance of signal travel with an unoccupied distance value corresponding to a distance between the sensor and the guest area being unoccupied, and determine whether the guest area is occupied based on comparing a difference between the distance of signal travel and the unoccupied distance value with a threshold.