A camera includes a first light distribution member for distributing infrared light irradiated from an infrared light irradiation unit over to a front seat area in a vehicle, a second light distribution member for distributing the infrared light irradiated from the infrared light irradiated unit to a rear seat area in the vehicle and an imaging unit for imaging of an inside of the vehicle irradiated by the infrared light distributed by the first light distribution member and the infrared light distributed by the second light distribution member. The first light distribution member and the second light distribution member are configured so that an average value of illuminance of the infrared light in the front seat area and an average value of the illuminance of the infrared light in the rear seat area are substantially equal to each other.

A vehicle includes a door sensor configured to detect opening and closing of a door; a radar provided in the vehicle and configured to acquire radar data regarding an object in the vehicle; a seatbelt sensor configured to detect a state of a seat belt provided on each seat of the vehicle; a seatbelt indicator configured to provide a notification regarding fastening of the seat belt; and a controller configured to control the radar in response to the opening and the closing of the door, perform a first check regarding the state of the seatbelt, check an occupancy and an occupied position of the object based on the radar data, identify a type of the object in the vehicle based on the radar data, and determine an operating state of the seatbelt indicator based on the type of the object and the occupied position of the object.

A system and related method for monitoring an occupant within a vehicle using a plurality of convolutional neural networks includes a processor, a sensor having a field of view that includes at least a portion of the occupant, and a memory. The memory may include a feature map module, a key point head module, a part affinity field head module, and a seatbelt head module. The modules include instructions that cause the processor to generate a key point heat map indicating a probability that a pixel is a joint of a plurality of joints of the occupant, a part affinity field heat map indicating a pairwise relationship between at least two joints of the plurality of joints of the occupant, and a seatbelt heat map indicating a likelihood that a pixel of the input image is a seatbelt.

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.

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 computing device in a vehicle can be programmed to receive an occupant position measurement from at least one of an acoustic and a light sensor, determine an estimated occupant size based on occupant weight, estimate a vehicle seat position based on the occupant position measurement, and, control a vehicle occupant safety device based on the estimated occupant size and estimated vehicle seat position.

A safety device is for a vehicle having a plurality of vehicle seats in an interior space arranged on at least two rows of seats, and a plurality of sensor modules that are arranged/can be arranged in the interior of the vehicle to detect a seat occupancy of the vehicle seats. The safety device includes at least one sensor module operating in a contact-free manner assigned to each row of seats. The sensor modules are arranged from an inner wall of the vehicle facing the interior space in order to detect the seat occupancy of the vehicle seats.

A pair of first airbags and a pair of second airbags are stowed in opposing regions of side wall portions of a vehicle seat. The first airbags are positioned at a seat front side relative to a shoulder area of a seat occupant in a seat side view. The second airbags are positioned at the seat front side relative to a waist area of the seat occupant in the seat side view. The pair of first airbags and the pair of second airbags are supplied with gas, inflate and expand towards the seat width direction inner sides thereof, and are structured such that each pair of airbags, in the inflated and expanded states thereof, push against one another at a seat width direction middle side of the vehicle seat.

A method for monitoring the interior of a vehicle including emitting electromagnetic waves of at least one frequency or at least one frequency band towards at least one seat arranged in the interior of the vehicle by means of an electromagnetic radiator, receiving reflected electromagnetic waves by means of a sensor, detecting a living object on the seat from the received reflected electromagnetic waves by means of a detection device, determining a volume of the detected object from the received reflected electromagnetic waves by means of the detection device, determining a weight characteristic of the detected object on the basis of the determined volume of the object by means of the detection device, outputting a detection signal representing the weight characteristic by way of the detection device, and actuating a safety system to make the interior safe in accordance with the detection signal.

A biological information output device outputs: information about a distance to a living body obtained by processing an I signal obtained by multiplying a signal of an electromagnetic wave and a signal of a reflected wave of the electromagnetic wave reflected on the living body and a Q signal obtained by delaying the I signal by a predetermined phase; a reception intensity of the reflected wave using a diameter of a circle drawn by a signal point obtained by developing the I signal and the Q signal on a complex plane; and a phase change amount of the reflected wave using a displacement angle of a range where the signal point is displaced on the circle with respect to a center of the circle. The device determines a type of the living body based on the distance, the reception intensity, and the phase change amount.