# US 11,910,284 B2 · Alert system for vehicle to output alert about occupant being left in vehicle

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- Number: US 11,910,284 B2
- Document ID: US11910284B2
- Status: Granted
- Kind: B2
- Application number: 17/744,978
- Filed: 2022-05-16
- Published: 2022-12-01
- Granted: 2024-02-20
- Earliest claimed: 2021-05-28
- Assignees: Subaru Corporation
- Applicants: Subaru Corporation
- Inventors: Kousei Kawamura; Tomoya Kanagawa
- Web page: https://patentgrep.com/patent/US11910284B2

## CPC

- H04W 4/48: for in-vehicle communication
- B60R 25/245: {where the antenna reception area plays a role}
- B60R 25/31: of human presence inside or outside the vehicle
- H04W 4/023: {using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds}
- H04W 4/90: Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR

## Abstract

An alert system outputs one or more alerts about an occupant being left in a vehicle. The alert system includes an in-vehicle object detector and an alert controller. The in-vehicle object detector detects objects in a vehicle compartment, including the occupant. If the occupant is left in the compartment after a driver has left the vehicle, the alert controller controls outputting of the one or more alerts to mobile terminals of persons including the driver. If the driver has left the vehicle, the alert controller causes the in-vehicle object detector to begin a detection processing for detecting the occupant being left in the compartment. If the occupant is left in the compartment, the alert controller determines whether the mobile terminal of the driver is left in the compartment. The alert controller switches outputting of the one or more alerts to among the mobile terminals of the persons in accordance with whether the mobile terminal of the driver is left in the compartment.

## Claims

### Claim 1

An alert system for a vehicle, the alert system comprising:
an in-vehicle object detector configured to detect objects in a compartment of the vehicle, the objects including an occupant; and
an alert controller is configured to:
in response to determining that a driver of the vehicle has left the vehicle, cause the in-vehicle object detector to detect that the occupant is being left in the compartment of the vehicle;
in response to determining that the occupant is being left in the compartment after the driver has left the vehicle, determine whether the mobile terminal of the driver is left in the compartment;
in response to determining that the mobile terminal of the driver is left in the compartment, output an alert to one of mobile terminals that belong to persons other than the driver, and
in response to determining that a response to the alert is received from the one of the mobile terminals, communicate with the one of the mobile terminals and execute rescue control processing for the occupant who is being left in the compartment after the driver has left the vehicle,
wherein the execute rescue control processing comprising:
sending information on feasible multiple rescuing options to one of the mobile terminals;
determining whether an instruction to execute a rescuing option is received from one of the mobile terminals; and
executing the rescuing option specified by one of the mobile terminals.

### Claim 2 (depends on 1)

The alert system according to claim 1, wherein the alert controller is configured to:
send a voice call to the mobile terminal of the driver having left the vehicle; and
in a case where there is a response to the voice call, determine that the mobile terminal of the driver is left in the compartment.

### Claim 3 (depends on 1)

The alert system according to claim 1, wherein the alert controller is configured to:
obtain a position of the one of the mobile terminals having responded;
compare the obtained position of the one of the mobile terminals with a position of the vehicle; and
unlock a door of the vehicle in a case where the obtained position of the one of the mobile terminals has approached the position of the vehicle.

### Claim 4

An alert system for a vehicle, the alert system comprising:
a sensor configured to detect objects in a compartment of the vehicle, the objects including the occupant; and
circuitry configured to:
in response to determining that a driver of the vehicle has left the vehicle, cause the sensor to detect that the occupant is being left in the compartment of the vehicle;
in response to determining that the occupant is being left in the compartment after the driver has left the vehicle, determine whether the mobile terminal of the driver is left in the compartment;
in response to determining that the mobile terminal of the driver is left in the compartment, output an alert to one of mobile terminals that belong to persons other than the driver, and
in response to determining that a response to the alert is received from the one of the mobile terminals, communicate with the one of the mobile terminals and execute rescue control processing for the occupant who is being left in the compartment after the driver has left the vehicle,
wherein the execute rescue control processing comprising:
sending information on feasible multiple rescuing options to one of the mobile terminals;
determining whether an instruction to execute a rescuing option is received from one of the mobile terminals; and
executing the rescuing option specified by one of the mobile terminals.