# US 2021/0243578 A1 · Onboard communication device, communication method and communication program

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- Number: US 2021/0243578 A1
- Document ID: US20210243578A1
- Status: Published application
- Kind: A1
- Application number: 17/141,366
- Filed: 2021-01-05
- Published: 2021-08-05
- Earliest claimed: 2020-02-05
- Assignees: Toyota Jidosha Kabushiki Kaisha
- Applicants: Toyota Jidosha Kabushiki Kaisha
- Inventors: Isao WATANABE
- Web page: https://patentgrep.com/patent/US20210243578A1

## CPC

- H04W 4/48: for in-vehicle communication
- H04W 4/025: {using location based information parameters}
- H04W 4/44: for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H]
- H04W 4/80: Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
- H04W 52/0216: {using a pre-established activity schedule, e.g. traffic indication frame}
- H04W 4/027: {using movement velocity, acceleration information}
- Y02D 30/70: in wireless communication networks
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- Y02D: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE

## Abstract

An onboard communication device can execute communication with an exterior of a vehicle via a communication section. The onboard communication device includes: an acquiring section that acquires at least one of a speed of the vehicle or position information of the vehicle; a judging section that judges whether or not communication by the communication section is possible, based on an acquisition result of the acquiring section; and a control section that effects control such that, in a case in which it is judged that communication by the communication section is not possible, vehicle information is stored together with time information in a storage section, and, in a case in which it is judged that communication is possible, the communication section transmits, to an external device at the exterior of the vehicle, the vehicle information to which is appended the time information that is stored in the storage section.

## Claims

### Claim 1

An onboard communication device that carries out communication with an exterior of a vehicle via a communication section that is installed at the vehicle and is of a communication standard that enables communication that is lower power than mobile communication standards and is longer range than short-range wireless communication standards, the onboard communication device comprising:
an acquiring section that acquires at least one of a speed of the vehicle or position information of the vehicle;
a judging section that judges whether or not communication by the communication section is possible, based on an acquisition result of the acquiring section; and
a control section that effects control such that, in a case in which it is judged that communication by the communication section is not possible, vehicle information is stored together with time information in a storage section, and, in a case in which it is judged that communication is possible, the communication section transmits, to an external device at the exterior of the vehicle, the vehicle information to which is appended the time information that is stored in the storage section.

### Claim 2 (depends on 1)

The onboard communication device of claim 1, wherein the communication section carries out communication in one direction that is only transmission.

### Claim 3 (depends on 1)

The onboard communication device of claim 1, wherein, in a case in which the judging section judges that communication by the communication section is not possible, the control section stores a time period that has elapsed from a final communication time, in the storage section as the time information.

### Claim 4 (depends on 1)

The onboard communication device of claim 1, wherein:
communication with the exterior of the vehicle is possible via, in addition to the communication section, another communication section that is installed at the vehicle and is of another communication standard that is different than the communication standard,
the judging section judges whether communication by the another communication section is possible based on area information of the another communication standard or in a case in which a signal of the another communication standard is sensed, and
in a case in which the judging section judges that communication by the communication section is not possible and that communication by the another communication section is possible, the control section effects control such that the another communication section transmits, to the external device, the vehicle information to which is appended the time information that is stored in the storage section.

### Claim 5 (depends on 4)

The onboard communication device of claim 4, wherein the another communication standard is a short-range wireless communication standard.

### Claim 6 (depends on 1)

The onboard communication device of claim 1, wherein a center server, which grasps situations of usage of and trouble with vehicles and which manages the vehicles, is included in the external device.

### Claim 7 (depends on 1)

The onboard communication device of claim 1, wherein environment information that relates to an in-cabin air environment of the vehicle is included in the vehicle information.

### Claim 8

A communication method between a communication section, which is installed at a vehicle and is of a communication standard that enables communication that is lower power than mobile communication standards and is longer range than short-range wireless communication standards, and an external device at an exterior of the vehicle, the method comprising:
an acquiring step of acquiring at least one of a speed of the vehicle or position information of the vehicle;
a judging step of judging whether or not communication by the communication section is possible, based on an acquisition result of the acquiring step; and
a control step of effecting control such that, in a case in which it is judged that communication by the communication section is not possible, vehicle information is stored together with time information in a storage section, and, in a case in which it is judged that communication is possible, the communication section transmits, to the external device, the vehicle information to which the time information is appended.

### Claim 9 (depends on 8)

A communication program executable by a computer to perform the respective steps of the communication method of claim 8.
