License Verification
------------------

Before using the Origin PilotOS system for the first time, users need to complete license verification. The license is used to authorize the overall usage rights of the system and is a prerequisite for accessing the platform.

When the system has not yet entered a license, or when the current license has expired, it will automatically enter the license input page, as shown in the figure. Users must fill in a valid license on this page before they can continue using the system.

.. figure:: image/license_page.png
    :align: center
    :width: 80%

Usage Process
~~~~~~~~~~~~

When accessing the system for the first time or when the license expires, users need to complete verification according to the following steps:

1. Enter a valid license code on the license page;
2. Click the confirm button to submit;
3. After successful verification, enter the system login page;
4. After logging in, you can use system functions normally.

If the entered license is invalid or has expired, the system will prompt, and users need to re-enter a valid license.

License Status Description
~~~~~~~~~~~~~~~~~~~~~~~~~

From the user's perspective, the license mainly exists in the following usage scenarios:

- **License Not Entered:**
  When using the system for the first time, a license needs to be entered, otherwise you cannot enter the system.

- **License Valid:**
  System functions are normally open, and users can use the platform normally.

- **License Expiring Soon:**
  The system can still be used, but the remaining validity period will be prompted in the interface. It is recommended to update the license in advance.

- **License Expired:**
  The system will suspend all functions and only allow re-entry of the license. It can only be used after the update is completed.

The top of the system main interface will display the remaining validity days of the license to help users understand the current authorization status in a timely manner.

Precautions
~~~~~

- It is recommended to update the license before it expires to avoid system service interruption;
- After the license expires, you must re-enter a valid license to restore system functions;
- If you cannot complete license verification, please contact the system administrator or operations personnel.