Abstract: A data processing apparatus includes a first interface to which a device which reads data is connected, a second interface to which a terminal apparatus is connected, an identification information transmission unit that transmits identification information to the terminal apparatus, and a control unit that when the data read by the device is input to the first interface, determines an association of the device and the terminal apparatus based on a correspondence of the read data and the identification information transmitted to the terminal apparatus.

Abstract: When a dedicated user interface is displayed on the touch panel 10a of a tablet terminal 10 in a control system 1, displaying a virtual keyboard in conjunction with selecting an input field is prohibited when information is input from an input device connected to a printer 11, and when an input field for inputting information through a dedicated virtual keypad displayed in the dedicated user interface UI is selected.

Abstract: An air conditioner for railway vehicles controlled in accordance with the air temperature in the car and data on at least one selected from the group consisting of underfoot temperature, radiant heat, air flow, humidity, outside air temperature, number of passengers and door opening operation. In this way, environment conditions which momentarily change are detected so as to prevent excessive cooling or heating in the car.