protected function _getUserByImei($imei)
{
$user = new manage_model_user();
$user->load($imei, 'imei');
if (!$user->getId()) {
$user->setData('imei', $imei);
$user->setData('role_id', manage_model_role::ROLE_AGENT);
$user->setData('username', $imei);
$user->setData('fullname', $imei);
$user->setData('marker_color', '#ff0000');
$user->save();
}
return $user->getId();
}