| 摘要 |
<p>The present invention relates to control of devices and in particular to control of hardware peripherals (14) connected to a main device. A smart card (20) is inserted in a main device (10) as the central controller of a remote terminal unit (3). Application software in the smart card issues orders to control the hardware peripherals (14) connected to the main device (10). These orders are transformed into standard commands belonging to a standard communication protocol between the smart card (20) and the central unit (16), preferably as part of an argument of the standard command. The standard commands are sent to a CPU (18) of a central unit (16) in the main device (10), where the orders about control measures are extracted and executed as read/write orders on interfaces (26, 28, 30, 32, 34) directly to hardware peripherals (14). The central unit (16) is provided with means (50) for executing general read/write actions on standard interfaces (26, 28, 30, 32, 34). <IMAGE></p> |
