BACKGROUND

1. Technical Field

The disclosure relates to a driving assistance device, control method, and a non-transitory computer-readable medium storing a program.

2. Description of Related Art

A technique of performing driving assistance for a vehicle with the use of a plurality of devices mutually connected wirelessly has been known. For example, Japanese Patent Application Publication No. 2002-098543 (JP 2002-098543 A) discloses a navigation system including near-field wireless communication means for exchanging information with a mobile communication terminal; and information storage means for exchanging the information with the mobile communication terminal to acquire and store the information when the mobile communication terminal enters a communicable area of the near-field wireless communication means. Japanese Patent Application Publication No. 2010-130669 (JP 2010-130669 A) discloses that, in the case where a mobile terminal enters an area where near-field wireless communication with an in-vehicle device is possible, the in-vehicle device and the mobile terminal perform a pairing process to establish the wireless communication.

SUMMARY

The above-described navigation system in the related art can exchange the information with an unspecified mobile communication terminal that enters the communicable area. Thus, the navigation system in the related art may not be preferred in view of security. The security is improved by the above-described configuration in the related art in which the in-vehicle device and the mobile terminal perform the pairing process. However, the pairing process needs to be performed every time the establishment of the wireless connection is required. This may complicate the process. Thus, there is room for improvement in a driving assistance technique for a vehicle with the use of a plurality of devices mutually connected wirelessly, in view of security and a processing load.

The disclosure provides a driving assistance device, a control method, and a non-transitory computer-readable medium storing a program, which improve a driving assistance technique for a vehicle with the use of a plurality of devices mutually connected wirelessly, in view of security and a processing load.

A first aspect of the disclosure relates to a driving assistance device mounted on a vehicle. The driving assistance device includes a communication unit configured to perform communication; an output unit configured to output information as an image or a voice; an input unit configured to detect user input; and a control unit configured to perform driving assistance with use of a point on a map as a destination. The control unit is configured to i) execute a connection process to connect the driving assistance device to a terminal device wirelessly via the communication unit, ii) output identification information on the terminal device as the image or the voice via the output unit after the driving assistance device is wirelessly connected to the terminal device, and iii) execute a setting process to set the point determined by the terminal device as the destination for the driving assistance in a case where the control unit detects specified user input via the input unit after outputting the identification information on the terminal device.

A second aspect of the disclosure relates to a control method of a terminal device configured to communicate with a driving assistance device mounted on a vehicle. The control method includes determining a point on a map in accordance with user input; outputting identification information on the vehicle or the driving assistance device as an image or a voice when the terminal device is wirelessly connected to the driving assistance device; and notifying the driving assistance device of identification information on the terminal device and information on the point in a case where specified user input is detected after outputting the identification information on the vehicle or the driving assistance device.

A third aspect of the disclosure relates to a non-transitory computer-readable medium storing a program that causes a terminal device to perform operations. The terminal device is configured to communicate with a driving assistance device mounted on a vehicle. The operations include determining a point on a map in accordance with user input; outputting identification information on the vehicle or the driving assistance device as an image or a voice when the terminal device is wirelessly connected to the driving assistance device; and notifying the driving assistance device of identification information on the terminal device and information on the point in a case where specified user input is detected after outputting the identification information on the vehicle or the driving assistance device.

The driving assistance device, the control method, and the non-transitory computer-readable medium storing the program according to the above aspects of the disclosure improve a driving assistance technique for a vehicle with the use of a plurality of devices mutually connected wirelessly, in view of security and a processing load.

