Laravel5 Run Artisan::call on background laravel schedule

I add this in my schedule

protected function schedule(Schedule $schedule)
{
    Artisan::call('queue:work');
}

I want to run this command on background like this:
php artisan queue:work > /dev/null 2>&1 &.

Notes:

1- I am in windows.
2- I do not have permission to use system functions like exce ,system ,...

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