Door unlocking system and door unlocking method
First Claim
1. A door unlocking system comprising:
- a portable device carried by a user and performing a wireless communication following a first short-range wireless communication mode and a wireless communication following a second short-range wireless communication mode;
a first in-vehicle device mounted on a vehicle including a plurality of doors, the first in-vehicle device performing the wireless communication following the first short-range wireless communication mode in a first range; and
a plurality of second in-vehicle devices mounted on the vehicle respectively correspondingly to the plurality of doors and each performing the wireless communication following the second short-range wireless communication mode in a second range smaller than the first range, the second range of each of the plurality of second in-vehicle devices corresponding to a respective door;
whereinthe first in-vehicle device includes a password generator issuing a password to the portable device in the first short-range wireless communication mode;
the portable device includes a storage temporarily storing the password issued by the password generator;
the plurality of second in-vehicle devices each includes a password detector searching for the password stored in the storage in the second short-range wireless communication mode; and
the first in-vehicle device further includes an unlocking actuator unlocking a door corresponding to the second in-vehicle device including the password detector detecting the password stored in the storage.
1 Assignment
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Accused Products
Abstract
An electronic key executes keyless entry communication or RFID communication. A wireless controller mounted on a vehicle executes keyless entry communication within a range of a radius of several meters to several tens of meters. An RFID reader is assigned to each door and executes RFID communication within a range of a radius of approximately 1 meter. In regards to unlocking the door, the wireless controller issues a password by the keyless entry communication, and a wireless circuit temporarily stores the issued password. The RFID readers search for the password stored in the electronic key by the RFID communication, and the wireless controller unlocks a door corresponding to the RFID reader for which the password was detected.
11 Citations
20 Claims
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1. A door unlocking system comprising:
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a portable device carried by a user and performing a wireless communication following a first short-range wireless communication mode and a wireless communication following a second short-range wireless communication mode; a first in-vehicle device mounted on a vehicle including a plurality of doors, the first in-vehicle device performing the wireless communication following the first short-range wireless communication mode in a first range; and a plurality of second in-vehicle devices mounted on the vehicle respectively correspondingly to the plurality of doors and each performing the wireless communication following the second short-range wireless communication mode in a second range smaller than the first range, the second range of each of the plurality of second in-vehicle devices corresponding to a respective door;
whereinthe first in-vehicle device includes a password generator issuing a password to the portable device in the first short-range wireless communication mode; the portable device includes a storage temporarily storing the password issued by the password generator; the plurality of second in-vehicle devices each includes a password detector searching for the password stored in the storage in the second short-range wireless communication mode; and the first in-vehicle device further includes an unlocking actuator unlocking a door corresponding to the second in-vehicle device including the password detector detecting the password stored in the storage. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A door unlocking method performed by a door unlocking system including a portable device carried by a user and performing a wireless communication following a first short-range wireless communication mode and a wireless communication following a second short-range wireless communication mode, a first in-vehicle device mounted on a vehicle including a plurality of doors, the first in-vehicle device performing the wireless communication following the first short-range wireless communication mode in a first range, and a plurality of second in-vehicle devices mounted on the vehicle respectively correspondingly to the plurality of doors and each performing the wireless communication following the second short-range wireless communication mode in a second range smaller than the first range, the second range of each of the plurality of second in-vehicle devices corresponding to a respective door, the method comprising:
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an issuing step in which the first in-vehicle device issues a password to the portable device in the first short-range wireless communication mode; a storing step in which the portable device temporarily stores the password issued in the issuing step; a searching step in which each of the plurality of second in-vehicle devices searches for the password stored in the storing step in the second short-range wireless communication mode; and an unlocking step in which the first in-vehicle device unlocks a door corresponding to the second in-vehicle device detecting the password stored in the storing step. - View Dependent Claims (17, 18, 19, 20)
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Specification