Vehicular communication apparatus, and vehicle control system and traffic system using the vehicular communication apparatus

1. A vehicular communication apparatus configured to be mounted on a host vehicle, the vehicular communication apparatus comprising:

a controller configured to:

acquire movement data related to movements of other movable bodies;

store and record the movement data related to the movements of the other movable bodies in a memory;

manage the record of the movement data in the memory;

acquire a virtual speed of each movable body of the other movable bodies, wherein the virtual speed is obtained from the movement data recorded in the memory;

determine a possibility of intersection of a movable body of the other movable bodies with a course of the host vehicle based on the acquired virtual speed of the movable body;

classify the movement data in the memory based on the determination and a degree of intersection between courses of the other movable bodies, wherein

the movement data of the movable body having the possibility of intersection with the course of the host vehicle is excluded from the classification of the movement data;

invalidate or delete the movement data recorded in the memory on a movable-body by movable-body basis, wherein

the movement data that is invalidated or deleted is of a set of movable bodies of the other movable bodies,

each movable body of the set of movable bodies has a low possibility of intersection between the courses of the other movable bodies,

the movement data in the memory is invalidated or deleted when an amount of the movement data in the memory exceeds a predetermined amount, and

the movement data in the memory is invalidated or deleted in accordance with the classification of the movement data; and

control the host vehicle based on the invalidation or the deletion of the movement data from the memory.

2. The vehicular communication apparatus according to claim 1 , wherein the controller is further configured to

predict movement of each movable body of the other movable bodies on the movable-body by movable-body basis, using a maximum speed of each type of each movable body of the other movable bodies,

determine whether a course of each movable of the other movable bodies intersects with the course of the host vehicle, and

invalidate or delete the movement data on the other movable bodies whose courses are determined not to intersect with the course of the host vehicle, on the movable-body by movable-body basis.

3. The vehicular communication apparatus according to claim 1 , wherein the controller is further configured to invalidate or delete the movement data recorded in the memory on the movable-body by movable-body basis, in accordance with a cycle of the acquisition of the movement data on the other movable bodies.

4. A vehicle control system comprising:

the vehicular communication apparatus according to claim 1 ; and

a vehicle control apparatus configured to control the host vehicle using the movement data recorded in the memory of the vehicular communication apparatus.

5. A traffic system comprising:

the vehicular communication apparatus according to claim 1 ; and

a server apparatus configured to transmit and receive the movement data related to the movements of the other movable bodies to and from the vehicular communication apparatus.

6. A vehicular communication apparatus configured to be mounted on a host vehicle, the vehicular communication apparatus comprising:

a controller configured to:

acquire movement data related to movements of other movable bodies;

store and record the movement data related to the movements of the other movable bodies in a memory;

manage the record of the movement data in the memory; and

transmit the movement data recorded in the memory to the other movable bodies, wherein

the controller is further configured to:

determine a possibility of intersection of a movable body of the other movable bodies with a course of the host vehicle based on the movement data of the movable body;

determine whether courses of the other movable bodies intersect with each other;

classify the movement data in the memory based on the determination of the possibility of intersection of the movable body with the host vehicle and a degree of intersection between the courses of the other movable bodies, wherein

the movement data of the movable body having the possibility of intersection with the course of the host vehicle is excluded from the classification of the movement data;

invalidate or delete the movement data, stored in the memory, on the other movable bodies, wherein

the movement data is invalidated or deleted for a set of movable bodies of the other movable bodies whose courses are determined not to intersect,

the movement data is invalidated or deleted on a movable-body by movable-body basis,

the movement data in the memory is invalidated or deleted in accordance with the classification of the movement data, and

the movement data in the memory is invalidated or deleted when an amount of the movement data in the memory exceeds a predetermined amount;

not invalidate or delete the movement data, stored in the memory, on the other movable bodies whose courses are determined to intersect;

control the host vehicle based on the invalidation or the deletion of the movement data from the memory; and

transmit, to the other movable bodies, the movement data which is in the memory based on the invalidation or the deletion of the movement data.

7. The vehicular communication apparatus according to claim 6 , wherein the controller is further configured to invalidate or delete the movement data recorded in the memory on the movable-body by movable-body basis, in accordance with a cycle of the acquisition of the movement data on the other movable bodies.

8. A vehicle control system comprising:

the vehicular communication apparatus according to claim 6 ; and

a vehicle control apparatus configured to control the host vehicle using the movement data recorded in the memory of the vehicular communication apparatus.

9. A traffic system comprising:

the vehicular communication apparatus according to claim 6 ; and

a server apparatus configured to transmit and receive the movement data related to the movements of the other movable bodies to and from the vehicular communication apparatus.

10. A vehicular communication apparatus configured to be mounted on a first movable body, the vehicular communication apparatus comprising:

circuitry configured to

acquire movement data related to movements of other movable bodies different from the first movable body;

store and record the acquired movement data related to the movements of the other movable bodies in a memory;

manage the record of the movement data in the memory,

acquire a virtual speed of each movable body of the other movable bodies, wherein the virtual speed is obtained from the recorded movement data;

determine a possibility of intersection of a second movable body of the other movable bodies with a course of the first movable body based on the acquired virtual speed of the second movable body;

classify the movement data in the memory based on the determination and a degree of intersection between courses of the other movable bodies, wherein

the movement data of the second movable body having the possibility of intersection with the course of the first movable body is excluded from the classification of the movement data;

invalidate or delete the recorded movement data on a movable-body by movable-body basis, wherein

the movement data that is invalidated or deleted is of a set of movable bodies of the other movable bodies,

each movable body of the set of movable bodies has a low possibility of intersection between the courses of the other movable bodies,

the movement data in the memory is invalidated or deleted when an amount of the movement data in the memory exceeds a predetermined amount, and

the movement data in the memory is invalidated or deleted in accordance with the classification of the movement data; and

control the first movable body based on the invalidation or the deletion of the movement data from the memory.

11. A vehicular communication apparatus configured to be mounted on a first movable body, the vehicular communication apparatus comprising:

circuitry configured to:

acquire movement data related to movements of other movable bodies different from the first movable body;

store and record the acquired movement data related to the movements of the other movable bodies in a memory;

manage the record of the movement data in the memory;

transmit the movement data recorded in the memory to the other movable bodies, wherein

the circuitry is further configured to

determine a possibility of intersection of a second movable body of the other movable bodies with a course of the first movable body based on the movement data of the second movable body;

determine whether courses of the other movable bodies intersect with each other;

classify the movement data in the memory based on the determination of the possibility of intersection of the second movable body with the first movable body and a degree of intersection between the courses of the other movable bodies, wherein

the movement data of the second movable body having the possibility of intersection with the course of the first movable body is excluded from the classification of the movement data;

invalidate or delete the stored movement data on the other movable bodies, wherein

the movement data is invalidated or deleted for a set of movable bodies of the other movable bodies whose courses are determined not to intersect,

the movement data is invalidated or deleted on a movable-body by movable-body basis,

the movement data in the memory is invalidated or deleted in accordance with the classification of the movement data, and

the movement data in the memory is invalidated or deleted when an amount of the movement data in the memory exceeds a predetermined amount;

not invalidate or delete the stored movement data on the other movable bodies whose courses are determined to intersect;

control the first movable body based on the invalidation or the deletion of the movement data from the memory; and

transmit, to the other movable bodies, the movement data stored in the memory based on the invalidation or the deletion of the movement data.