Wireless communication system, vehicle unit, roadside unit and server
First Claim
1. A wireless communication system having a vehicle unit, a first roadside unit and a second roadside unit,the vehicle unit comprising:
- a vehicle side wireless communication unit that processes a wireless communication signal;
an interface unit that retrieves encrypted information from an external memory medium that is used for storing the encrypted information;
a storage that stores information; and
a vehicle side controller that controls in a unified manner the vehicle side wireless communication unit, the interface unit and the storage,the first roadside unit comprising;
a first wireless communication unit that processes the wireless communication signal;
a first security unit that decrypts the encrypted information; and
a first controller that controls in a unified manner the first wireless communication unit and the first security unit, andthe second roadside unit comprising;
a second wireless communication unit that processes the wireless communication signal;
a second security unit that decrypts the encrypted information; and
a second controller that controls in a unified manner the second wireless communication unit and the second security unit,wherein the vehicle side controller transmits the encrypted information that is retrieved from the external memory medium with the interface unit to the first roadside unit by way of the vehicle side wireless communication unit,the first controller transmits the encrypted information that is received from the vehicle unit through the first wireless communication unit back to the vehicle unit with the first wireless communication unit after verifying authenticity of a content of the encrypted information by decrypting the encrypted information with the first security unit,the vehicle side controller stores in the storage the encrypted information that is received from the first roadside unit through the vehicle side wireless communication unit, and thereafter transmits the encrypted information that is stored in the storage through the vehicle side wireless communication unit to the second roadside unit upon having a transmission request for the encrypted information stored in the external memory medium from the second roadside unit, andthe second controller puts the encrypted information that is received by sending a request to the vehicle unit for use by a predetermined application after decrypting the encrypted information with the second security unit.
1 Assignment
0 Petitions
Accused Products
Abstract
A wireless communication system provides a decryption module for decrypting card information on a roadside unit for information registration and a roadside unit for toll collection instead of providing the decryption module on a vehicle unit. In this manner, the wireless communication system can accommodate an IC card that uses a new encryption method more easily relative to a conventional wireless communication system, because the roadside units are smaller in number in comparison to the vehicle units at the time of system operation with greater allowance for demand for space efficiency and cost reduction.
-
Citations
26 Claims
-
1. A wireless communication system having a vehicle unit, a first roadside unit and a second roadside unit,
the vehicle unit comprising: -
a vehicle side wireless communication unit that processes a wireless communication signal; an interface unit that retrieves encrypted information from an external memory medium that is used for storing the encrypted information; a storage that stores information; and a vehicle side controller that controls in a unified manner the vehicle side wireless communication unit, the interface unit and the storage, the first roadside unit comprising; a first wireless communication unit that processes the wireless communication signal; a first security unit that decrypts the encrypted information; and a first controller that controls in a unified manner the first wireless communication unit and the first security unit, and the second roadside unit comprising; a second wireless communication unit that processes the wireless communication signal; a second security unit that decrypts the encrypted information; and a second controller that controls in a unified manner the second wireless communication unit and the second security unit, wherein the vehicle side controller transmits the encrypted information that is retrieved from the external memory medium with the interface unit to the first roadside unit by way of the vehicle side wireless communication unit, the first controller transmits the encrypted information that is received from the vehicle unit through the first wireless communication unit back to the vehicle unit with the first wireless communication unit after verifying authenticity of a content of the encrypted information by decrypting the encrypted information with the first security unit, the vehicle side controller stores in the storage the encrypted information that is received from the first roadside unit through the vehicle side wireless communication unit, and thereafter transmits the encrypted information that is stored in the storage through the vehicle side wireless communication unit to the second roadside unit upon having a transmission request for the encrypted information stored in the external memory medium from the second roadside unit, and the second controller puts the encrypted information that is received by sending a request to the vehicle unit for use by a predetermined application after decrypting the encrypted information with the second security unit. - View Dependent Claims (2, 3)
-
-
4. A wireless communication system having a vehicle unit, a first roadside unit and a second roadside unit,
the vehicle unit comprising: -
a vehicle side wireless communication unit that processes a wireless communication signal; an interface unit that retrieves encrypted information from an external memory medium that is used for storing the encrypted information; a storage that stores information; and a vehicle side controller that controls in a unified manner the vehicle side wireless communication unit, the interface unit and the storage, the first roadside unit comprising; a first wireless communication unit that processes the wireless communication signal; a first security unit having an encryptor that encrypts information and a decryptor that decrypts information; and a first controller that controls in a unified manner the first wireless communication unit and the first security unit, and the second roadside unit comprising; a second wireless communication unit that processes the wireless communication signal; a second security unit that decrypts the encrypted information; and a second controller that controls in a unified manner the second wireless communication unit and the second security unit, wherein the vehicle side controller transmits the encrypted information that is retrieved from the external memory medium with the interface unit to the first roadside unit by way of the vehicle side wireless communication unit, the first controller transmits the encrypted information that is received from the vehicle unit through the first wireless communication unit back to the vehicle unit with the first wireless communication unit after verifying authenticity of a content of the encrypted information by decrypting the encrypted information and re-encrypting the decrypted information with the first security unit, the vehicle side controller stores in the storage the encrypted information that is received from the first roadside unit through the vehicle side wireless communication unit, and thereafter transmits through the vehicle side wireless communication unit to the second roadside unit the encrypted information that is stored in the storage upon having a transmission request for the encrypted information stored in the external memory medium from the second roadside unit, and the second controller puts the encrypted information that is received by sending a request to the vehicle unit for use by a predetermined application after decrypting the encrypted information with the second security unit. - View Dependent Claims (5, 6)
-
-
7. A vehicle unit comprising:
-
a vehicle side wireless communication unit that processes a wireless communication signal; an interface unit that retrieves encrypted information from an external memory medium that is used for storing the encrypted information; a storage that stores information; and a vehicle side controller that controls in a unified manner the vehicle side wireless communication unit, the interface unit and the storage, wherein the vehicle side controller transmits the encrypted information that is retrieved from the external memory medium with the interface unit to a first roadside unit by way of the vehicle side wireless communication unit, and the vehicle side controller stores the encrypted information in the storage after verifying and transmitting the encrypted information from first roadside unit, and thereafter transmits through the vehicle side wireless communication unit to a second roadside unit the encrypted information that is stored in the storage upon having a transmission request from the second roadside unit for the encrypted information stored in the external memory medium. - View Dependent Claims (8)
-
-
9. A first roadside unit comprising:
-
a first wireless communication unit that processes the wireless communication signal; a first security unit that decrypts the encrypted information; and a first controller that controls in a unified manner the first wireless communication unit and the first security unit, wherein the first controller transmits the encrypted information through the first wireless communication unit to the vehicle unit after decrypting the encrypted information for authenticity verification by using the first security unit when the encrypted information is received from the vehicle unit with the first wireless communication unit. - View Dependent Claims (10, 11)
-
-
12. A first roadside unit comprising:
-
a first wireless communication unit that processes the wireless communication signal; a first security unit having an encryptor that encrypts information and a decryptor that decrypts information; and a first controller that controls in a unified manner the first wireless communication unit and the first security unit, wherein the first controller transmits the encrypted information through the first wireless communication unit to the vehicle unit after decrypting the encrypted information for authenticity verification and re-encrypting the decrypted information by using the first security unit when the encrypted information is received from the vehicle unit with the first wireless communication unit. - View Dependent Claims (13, 14)
-
-
15. A second roadside unit comprising:
-
a second wireless communication unit that processes the wireless communication signal; a second security unit that decrypts the encrypted information; and a second controller that controls in a unified manner the second wireless communication unit and the second security unit, wherein the second controller decrypts the encrypted information that is received after sending a request to the vehicle unit by using the second security unit for use in a predetermined application. - View Dependent Claims (16)
-
-
17. A wireless communication system having a vehicle unit, a portable terminal and a server,
the vehicle unit comprising: -
a first vehicle communication unit that communicates with a roadside unit; a second vehicle communication unit that communicates with the portable terminal; a vehicle storage that stores information; and a vehicle controller that controls the first vehicle communication unit, the second vehicle communication unit and the vehicle storage in a unified manner, the portable terminal comprising; a first portable communication unit that communicates with the server through a wireless public network; a second portable communication unit that communicates with the vehicle unit; and a portable controller that controls the first portable communication unit and the second portable communication unit in a unified manner, and the server comprising; a server communication unit that communicates with the portable terminal through the wireless public network; and a server controller that controls the server communication unit in a unified manner, wherein the portable controller transmits first identification information to the server through the first portable communication unit, the server controller checks authenticity of the first identification information received by the server communication unit, generates second identification information that corresponds to the first identification information upon verifying authenticity of the first identification information and transmits the second information to the portable terminal through the server communication unit, the portable controller transmits the second identification information received by the first portable communication unit to the vehicle unit through the second portable communication unit, and the vehicle controller stores the second identification information on the vehicle storage and transmits the second identification information stored on the vehicle storage to the roadside unit through the first vehicle communication unit upon having a request for the second identification information from the roadside unit when the vehicle controller receives the second identification information from the portable terminal with second vehicle communication unit. - View Dependent Claims (18, 19, 20)
-
-
21. A vehicle unit comprising:
-
a first vehicle communication unit that communicates with a roadside unit; a second vehicle communication unit that communicates with a portable terminal; a vehicle storage that stores information; and a vehicle controller that controls the first vehicle communication unit, the second vehicle communication unit and the vehicle storage in a unified manner, wherein the vehicle controller stores the second identification information on the vehicle storage when the vehicle controller receives the second identification information from the portable terminal through the second vehicle communication unit, and thereafter transmits the second identification information stored in the vehicle storage to the roadside unit through the first vehicle communication unit upon having a request for the second identification information from the roadside unit. - View Dependent Claims (22, 23)
-
-
24. A server comprising:
-
a server communication unit that communicates with a portable terminal through a wireless public network; and a server controller that controls the server communication unit in a unified manner, wherein the server controller receives a first identification information from the portable terminal through the server communication unit, checks authenticity of the first identification information, generates the second identification information that corresponds to the first identification information upon verifying authenticity of the first identification information and transmits the second identification information to the portable terminal through the server communication unit after. - View Dependent Claims (25, 26)
-
Specification