US-20260129414-A1 - SYSTEM

Abstract

The system includes a database in which communication performance data on a communication quality of a vehicle is stored, a route specifying unit configured to specify one route of which communication performance data within a predetermined period is not acquired, a vehicle specifying unit configured to specify one vehicle including the one route as a scheduled travel route, and an acquisition unit configured to acquire one piece of communication performance data from one vehicle traveling on the one route.

Inventors

• Takamasa HIGUCHI

Assignees

• TOYOTA JIDOSHA KABUSHIKI KAISHA

Dates

Publication Date

20260507

Application Date

20250620

Priority Date

20241101

Claims (3)

1. 1 . A system comprising: a database in which communication performance data related to a communication quality of a vehicle is stored; a route specifying unit configured to specify one route for which communication performance data within a predetermined period has not been acquired; a vehicle specifying unit configured to specify one vehicle having a scheduled travel route that includes the one route; and an acquisition unit configured to acquire one piece of communication performance data from the one vehicle that travels on the one route.
2. 2 . The system according to claim 1 , further comprising a prediction unit configured to predict a communication quality of the one route based on the one piece of communication performance data.
3. 3 . The system according to claim 2 , further comprising a transmission unit configured to transmit the predicted communication quality of the one route to another vehicle that travels on the one route in future.

Description

CROSS-REFERENCE TO RELATED APPLICATION This application claims priority to Japanese Patent Application No. 2024-192702 filed on Nov. 1, 2024. The disclosure of the above-identified application, including the specification, drawings, and claims, is incorporated by reference herein in its entirety. BACKGROUND 1. Technical Field The present disclosure relates to a technical field of a system related to communication. 2. Description of Related Art As this kind of system, for example, a system that provides route information indicating a route for a moving body that autonomously moves to reach a destination has been proposed. A system in which a route is searched according to a cost related to a wireless communication quality has been proposed (see Japanese Unexamined Patent Application Publication No. 2022-072934 (JP 2022-072934 A)). SUMMARY In a case where the moving body moves from a cell of one wireless base station to a cell of another wireless base station, the communication quality may deteriorate. In a technique described in JP 2022-072934 A, in a case where communication between a mobile robot as the moving body and a navigation device is interrupted, the mobile robot may autonomously return to a place where the communication with the navigation device is restored. However, such a response is not suitable for a moving body occupied by a person, such as an autonomous driving vehicle. The present disclosure can provide a system capable of collecting data for predicting a communication quality. A system according to an aspect of the present disclosure includes: a database in which communication performance data related to a communication quality of a vehicle is stored; a route specifying unit configured to specify one route for which communication performance data within a predetermined period has not been acquired; a vehicle specifying unit configured to specify one vehicle having a scheduled travel route that includes the one route; and an acquisition unit configured to acquire one piece of communication performance data from the one vehicle that travels on the one route. BRIEF DESCRIPTION OF THE DRAWINGS Features, advantages, and technical and industrial significance of exemplary embodiments of the disclosure will be described below with reference to the accompanying drawings, in which like signs denote like elements, and wherein: FIG. 1 is a block diagram showing an example of a configuration of a system according to an embodiment; and FIG. 2 is a block diagram showing an example of a configuration of a system according to a modification of the embodiment. DETAILED DESCRIPTION OF EMBODIMENTS An embodiment relating to the system will be described with reference to FIG. 1. Hereinafter, an embodiment of the system will be described using the prediction server 10 as an example of the system. In FIG. 1, the prediction server 10 includes a communication quality database 11, a route specifying section 12, a vehicle specifying section 13, a communication quality performance collecting section 14, a communication quality prediction section 15, and a transmission section 16. The prediction server 10 is configured to communicate with the vehicles 20, 30. In the present embodiment, the vehicle 30 is an autonomous driving vehicle that autonomously travels by the autonomous driving function. In the present embodiment, the prediction server 10 predicts the communication quality on the scheduled traveling route of the vehicle 30. The vehicle 20 may be a vehicle that is driven by a person. The vehicle 20 may have an autonomous driving function. The vehicles 20, 30 may be connected cars. The communication quality performance collecting section 14 collects the communication quality data from one or more vehicles (for example, the vehicle 20). The communication quality data may be data indicating communication quality between the vehicle and a network node other than the vehicle. For example, the network node other than the vehicle may include at least one of the communication base station and the application server 51. The communication quality data may include a communication log regarding communication between the vehicle and the network node. Here, the vehicle 20 will be described. The vehicle 20 includes a communication quality measurement section 21 and a communication controller 22. The communication controller 22 controls transmission and reception of communication data between the vehicle 20 and a network node other than the vehicle 20 (for example, at least one of the communication base station and the application server 51). The communication quality measurement section 21 measures the communication quality of the vehicle 20. For example, the communication quality may include first information passively obtained by monitoring a signal from a wireless channel or a wireless communication base station and second information obtained by performing data communication with a server, such as the application server