Control system and control method for construction machinery

1. A control system for construction machinery, comprising:

a smart key configured to store a plurality of authentication codes and activate any one of the authentication codes; and

a plurality of construction machines including a plurality of smart key modules mounted thereon respectively, the smart key modules communicating wirelessly with the smart key and having respective registration authentication codes which match with the authentication codes respectively,

wherein the construction machine including the smart key module having the registration authentication code which matches with the activated authentication code is controlled by the smart key,

wherein each of the smart key modules comprises:

an input portion through which information of a password is inputted, the password being inputted by a user in order to register the registration authentication code which matches with any activated one of the authentication codes at any one of the smart key modules; and

a module controller configured to authenticate the password inputted by the user and register the activated authentication code as the registration authentication code for any one of the smart key modules based on the authentication result,

wherein the module controller comprises:

a first password generation portion to generate a first password; and

an authentication portion to compare the first password with the password which is inputted by the user, and

wherein when the inputted password is authenticated by the module controller, the activated authentication code of the smart key which is recognized by the smart key module is registered as a new registration authentication code.

2. The control system for construction machinery of claim 1 , wherein the smart key comprises

a selection portion configured to select any one of the stored authentication codes; and

a smart key controller configured to activate the selected authentication code and transmit the activated authentication code.

3. The control system for construction machinery of claim 2 , wherein when any one of the stored authentication codes is selected by the selection portion, an alarm device of the construction machine that matches with the activated authentication code is controlled to operate for a predetermined time.

4. The control system for construction machinery of claim 1 , further comprising:

a user terminal configured to provide the user with a graphic interface for generating a second password identical to the first password.

5. The control system for construction machinery of claim 4 , wherein the user terminal comprises a second password generation portion to generate the second password by combining construction machine information, date and time.

6. The control system for construction machinery of claim 5 , wherein the first and second password generation portions create cryptographic variables using AES algorithm or RSA algorithm.

7. The control system for construction machinery of claim 4 , wherein the user terminal comprises

an input portion through which a password is inputted for registration of the authentication code; and

a terminal controller configured to transmit the inputted password to a server.

8. The control system for construction machinery of claim 7 , wherein the smart key module receives the password inputted to the user terminal from the server, authenticates the received password and registers the authentication code as the registration authentication code based on the authentication result.

9. The control system for construction machinery of claim 8 , wherein the construction machine further comprises a remote management device communicating wirelessly with the server, and

wherein the smart key module is connected to the remote management device to receive the password inputted to the user terminal.

10. A control method for construction machinery, comprising:

storing a plurality of authentication codes in a smart key;

registering registration authentication codes which match with the authentication codes respectively at smart key modules, the smart key modules being mounted on a plurality of construction machines respectively;

selecting any one of the authentication codes of the smart key; and

controlling the construction machine at which the registration authentication code matching with the selected authentication code is registered, with the smart key,

wherein registering the registration authentication codes respectively at the smart key modules comprises:

generating a first password, in a first password generation portion of any one of the smart key modules, by combining construction machinery information, date and time;

comparing a password inputted by the user with the first password to authenticate, in an authentication portion of any one of the smart key modules;

activating any one of the authentication codes stored in the smart key; and

recognizing the activated authentication code of the smart key when the inputted password is authenticated and registering as a new registration authentication code for any one of the smart key modules.

11. The control method of claim 10 , wherein selecting any one of the authentication codes of the smart key comprises clicking a selection button of the smart key.

12. The control method of claim 11 , wherein when any one of the stored authentication codes is selected by the selection portion of the smart key, an alarm device of the construction machine that matches with the activated authentication code is controlled to operate for a predetermined time.

13. The control method of claim 10 , wherein controlling the construction machine with the smart key comprises

transmitting a search signal from the smart key module;

receiving a response signal in response to the search signal from the smart key; and

authenticating whether or not the response signal matches with the registration authenticate code.