Display control device, and display control method
A display control device for controlling a display unit in a vehicle, including a dedicated middleware that executes a program on a vehicle side, a general purpose middleware that executes general purpose application programs from an external of the vehicle, and an interface that exchanges necessary information between the dedicate middleware and the general purpose middleware, includes: an acquisition device that acquires vehicle information on a dedicated middleware side; a notification device that notifies a general purpose middleware side through the interface of a vehicle status based on the vehicle information; and an activation device that activates, on the general purpose middleware side, a target application program for realizing the display corresponding to the vehicle status among the general purpose application programs based on the vehicle status.
1. A display control device for controlling a display of a display unit mounted in a vehicle, including a dedicated middleware that executes a program prepared on a vehicle side, a general purpose middleware that executes a plurality of general purpose application programs delivered from an external of the vehicle, and an interface that exchanges necessary information between the dedicate middleware and the general purpose middleware, the display control device comprising:
an acquisition device that acquires vehicle information associated with the vehicle on a dedicated middleware side;
a notification device that notifies a general purpose middleware side through the interface of a vehicle status based on the vehicle information acquired by the acquisition device;
an activation device that activates, on the general purpose middleware side, a target application program for realizing the display corresponding to the vehicle status among the general purpose application programs based on the vehicle status notified by the notification device; and
a general operating system, the dedicated middleware and the general purpose middleware being located on the general operating system, the dedicated middleware and the general purpose middleware being independent from each other, and the general operating system being a software operating system;
wherein:
exchange of the necessary information between the dedicated middleware and the general purpose middleware is performed through only the interface when an amount of the necessary information is lower than a predetermined threshold; and
the exchange is performed through both the general operating system and the interface when the amount of the necessary information is equal to or higher than the predetermined threshold.
2. The display control device according to claim 1 , wherein:
when a plurality of target application programs are installed in the display control device, the activation device selects and activates one of the target application programs.
3. The display control device according to claim 2 , wherein:
when the activation device controls the display unit to display a list of the plurality of target application programs, and one of listed target application programs is selected by a user, the activation device activates the selected target application program.
4. The display control device according to claim 1 , wherein:
when the target application program is not installed in the display control device, the activation device downloads the target application program from the external of the vehicle, and activates the target application program.
5. The display control device according to claim 4 , wherein:
when the target application program is not installed in the display control device, the activation device displays a list of candidates of a plurality of target application programs acquirable from the external of the vehicle; and
when one of listed target application programs is selected, the activation device downloads and activates the selected target application program.
6. The display control device according to claim 1 , wherein:
the notification device together with the activation device control the display unit to display the vehicle status based on the vehicle information acquired by the acquisition device, and notifies the general purpose middleware side of the vehicle status when receiving an operation from an user.
7. A display control method for controlling a display of a display unit mounted on a vehicle, comprising:
acquiring vehicle information associated with a vehicle by a dedicated middleware that executes a program prepared on a vehicle side;
notifying a general purpose middleware, which executes a plurality of general purpose application programs delivered from an external of the vehicle, of a vehicle status based on the vehicle information through an interface;
exchanging necessary information between the dedicated middleware and the general purpose middleware through the interface; and
activating a target application program, by the general purpose middleware, for realizing the display corresponding to the vehicle status among the general purpose application programs based on the vehicle status;
wherein the dedicated middleware and the general purpose middleware are located on a general operating system, the dedicated middleware and the general purpose middleware are independent from each other, and the general operating system is a software operating system; and
wherein:
exchange of the necessary information between the dedicated middleware and the general purpose middleware is performed through only the interface when an amount of the necessary information is lower than a predetermined threshold; and
the exchange is performed through both the general operating system and the interface when the amount of the necessary information is equal to or higher than the predetermined threshold.