# US 2022/0035017 A1 · Method for detecting people and/or objects in the interior of a motor vehicle and motor vehicle

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- Number: US 2022/0035017 A1
- Document ID: US20220035017A1
- Status: Published application
- Kind: A1
- Application number: 17/386,771
- Filed: 2021-07-28
- Published: 2022-02-03
- Earliest claimed: 2020-07-30
- Assignees: Volkswagen Aktiengesellschaft
- Applicants: Volkswagen Aktiengesellschaft
- Inventors: Bernd ETTE
- Web page: https://patentgrep.com/patent/US20220035017A1

## CPC

- G01S 13/04: Systems determining presence of a target (based on relative movement of target G01S13/56)
- G01S 13/42: Simultaneous measurement of distance and other co-ordinates (indirect measurement G01S13/46)
- G01S 13/56: for presence detection {(presence detection using near field arrangements G01V3/00, e.g. G01V3/08, G01V3/12; burglar, theft or intruder alarms with electrical actuation G08B13/22 - G08B13/26)}
- G01S 13/886: {for alarm systems (alarms with electrical actuation G08B13/22)}
- G01S 11/02: using radio waves (G01S19/00 takes precedence)
- G01S: RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES

## Abstract

A method for detecting people and/or objects in the interior of a transportation vehicle, wherein people and/or objects in the interior of the transportation vehicle are detected by at least two UWB antennas which are each arranged in or on different doors of the transportation vehicle and used for communication with at least one ID transmitter and/or a remote control, at least for locking and unlocking the doors, and wherein signals acquired using the at least two UWB antennas are evaluated via a control device and an evaluation result is delivered. Also disclosed is a transportation vehicle.

## Claims

### Claim 1

A transportation vehicle comprising:
at least two UWB antennas each located in or on different doors of the transportation vehicle, wherein the at least two UWB antennas are used for communication with at least one ID transmitter and/or a remote control, at least for locking and unlocking the doors, and wherein the at least two UWB antennas acquire signals indicating detection of people and/or objects in an interior of the transportation vehicle; and
a control device configured to evaluate signals acquired by the at least two UWB antennas to generate an evaluation result indicating detect people and/or objects in the interior of the transportation vehicle.

### Claim 2 (depends on 1)

The transportation vehicle of claim 1, wherein the detection is carried out in both an active operating mode and in a passive operating mode of the at least two UWB antennas.

### Claim 3 (depends on 1)

The transportation vehicle of claim 1, wherein, in a passive operating mode, signals emitted by at least one of the at least two UWB antennas are also acquired by UWB antennas other than the at least two UWB antennas, wherein the signals acquired by each of the other UWB antennas are also evaluated by the control device to generate the evaluation result.

### Claim 4 (depends on 1)

The transportation vehicle of claim 1, wherein the evaluation comprises determining a position and/or a change of position of a detected person and/or of a detected object in the interior of the transportation vehicle based on the signals acquired by the at least two UWB antennas.

### Claim 5 (depends on 1)

The transportation vehicle of claim 1, wherein the evaluation comprises computing a three-dimensional image of the interior of the transportation vehicle from the signals acquired by the at least two UWB antennas.

### Claim 6 (depends on 1)

The transportation vehicle of claim 1, wherein, in an active operating mode of the at least two UWB antennas, at least one distance between the at least two UWB antennas is determined, wherein the at least one distance determined is compared with at least one specified distance value, and wherein the detection of people and/or objects in the interior of the transportation vehicle is started when the comparison result shows that the determined distance corresponds to the at least one specified distance value.

### Claim 7 (depends on 1)

The transportation vehicle of claim 1, wherein an identification code of a detected person and/or of a detected object is recorded or received, wherein the recorded or received identification code is linked to a determined position of the person and/or a determined position of the object in the interior of the transportation vehicle and transmitted to at least one server.

### Claim 8 (depends on 1)

The transportation vehicle of claim 1, wherein further UWB antennas other than the at least two UWB antennas are arranged in further, different doors of the transportation vehicle and are used during the detection, wherein signals acquired in an active operating mode and/or in a passive operating mode are evaluated tomographically.

### Claim 9 (depends on 1)

The transportation vehicle of claim 1, wherein the evaluation comprises determining a body posture and/or at least one physiological quantity of a detected person, and/or determining a size and/or dimensions of a detected object.

### Claim 10

A method for detecting people and/or objects in an interior of a transportation vehicle, the method comprising:
acquiring signals using at least two UWB antennas arranged in or on different doors of the transportation vehicle, wherein the at least two UWB antennas are used for communication with at least one ID transmitter and/or a remote control for at least locking and unlocking the doors; and
evaluating the signals acquired using the at least two UWB antennas using a control device to generate an evaluation result indicating detection of people and/or objects in the interior of the transportation vehicle.

### Claim 11 (depends on 10)

The method of claim 10, wherein signal acquisition is carried out in both an active operating mode and in a passive operating mode of the at least two UWB antennas.

### Claim 12 (depends on 10)

The method of claim 10, wherein, in a passive operating mode, signals emitted by at least one of the at least two UWB antennas are also acquired by other UWB antennas, wherein the signals acquired by each of the other UWB antennas are also evaluated.

### Claim 13 (depends on 10)

The method of claim 10, wherein the evaluation comprises determining a position and/or a change of position of a detected person and/or of a detected object in the interior of the transportation vehicle from the signals acquired by the at least two UWB antennas.

### Claim 14 (depends on 10)

The method of claim 10, wherein the evaluation comprises computing a three-dimensional image of the interior of the transportation vehicle from the signals acquired by the at least two UWB antennas.

### Claim 15 (depends on 10)

The method of claim 10, wherein, in an active operating mode of the at least two UWB antennas, at least one distance between the at least two UWB antennas is determined, wherein the at least one distance determined is compared with at least one specified distance value, and wherein the detection of people and/or objects in the interior of the transportation vehicle is started when the comparison result shows that the determined distance corresponds to the at least one specified distance value.

### Claim 16 (depends on 10)

The method of claim 10, wherein an identification code of a detected person and/or of a detected object is recorded or received, wherein the recorded or received identification code is linked to a determined position of the person and/or a determined position of the object in the interior of the transportation vehicle and transmitted to at least one server.

### Claim 17 (depends on 10)

The method of claim 10, wherein further UWB antennas arranged in further, different doors of the transportation vehicle are used during the detection, wherein signals acquired in an active operating mode and/or in a passive operating mode are evaluated tomographically.

### Claim 18 (depends on 10)

The method of claim 10, wherein the evaluation comprises determining a body posture and/or at least one physiological quantity of a detected person, and/or determining a size and/or dimensions of a detected object.
