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1. (WO2019025277) METHOD FOR OPERATING A USER TERMINAL OF AN AGRICULTURAL MACHINE AND AGRICULTURAL MACHINE
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Claims

Method for operating a user terminal (7) of an agricultural machine, comprising

- providing a user terminal (7) in a control system (3) of an agricultural machine, the user terminal (7) connected to a power supply and configured to transmit, through a control bus (6), control signals to functional elements (10a; 10b) of the agricultural machine;

- enabling operation of the user terminal (7), after a period of time the user terminal was turned-off before, comprising

- enabling a user control mode of operation of the user terminal (7);

- running software applications in the user terminal (7);

- enabling a display device of the user terminal (7); and

- enabling the control bus (6), thereby, operating the control bus (6) in a bus control mode allowing for transmission of the control signals through the control bus (6);

- controlling operation of one of the functional elements (10a; 10b) of the agricultural machine in the user control mode of operation, comprising

- receiving a user input for controlling operation of the one of the functional elements (10a; 10b) through an input device of the user terminal (7);

- in response to the user input, generating present control signals;

- transmitting the present control signals to the control unit assigned to the one of the functional elements (10a; 10b) through the control bus (6); and

- operating the functional elements (10a; 10b) according to the present control signals;

- disabling the user control mode of operation and enabling a standby mode of operation for the user terminal (7), comprising

- continuing with running one or all of the software applications in the user terminal (7);

- disabling the display device of the user terminal (7); and

- disabling the control bus (6), thereby, preventing transmission of the control signals from the user terminal (7) through the control bus (6); and

- re-enabling the control mode of operation for the user terminal (7);

- determining a turn-on state of an ignition device of the agricultural machine in the control system (3);

- enabling operation of the user terminal (7);

- determining a turn-off state of the ignition device of the agricultural machine; and

- in response to the determining of the turn-off state, disabling the control mode of operation and enabling the standby mode of operation for the user terminal (7).

Method of claim 1 , further comprising wherein

- the enabling of operation comprises enabling of the operation of the user terminal (7) within a starting period of time after determining the turn-on state; and

- the re-enabling of the control mode of operation comprises re-enabling the control mode of operation for the user terminal (7) within a re-starting period of time after determining a re-turn-on state of the ignition device, the re-starting period of time being shorter than the starting period of time.

Method of claim 2, wherein the re-starting period of time is shorter than the starting period of time by at least 70 %.

Method of at least one of the preceding claims, wherein the enabling of the standby mode of operation for the user terminal (7) comprises disabling an input device of the user terminal (7).

Method of at least one of the preceding claims, wherein the disabling of the control bus (6) comprises, within an OSI layer model of the control bus (6), disabling a physical layer.

Method of at least one of the preceding claims, wherein the disabling the display comprises one of outputting a standby screen on the display device of the user terminal (7); and turning-off a backlight illumination of the display device (12) of the user terminal (7).

Method of at least one of the preceding claims, further comprising, in the standby mode of operation,

- determining a standby time in the control system (3), the standby time indicating a period of time lapsed after the enabling of the standby mode of operation for the user terminal (7);

- determining that the standby time is exceeding a standby time limit; and

- in response to the determining, turning-off the user terminal (7).

Method of at least one of the preceding claims, wherein the providing comprises providing the user terminal in a tractor (1 ) of the agricultural machine, the tractor (1 ) trailing or carrying an implement (2), wherein at least some of the functional elements (10b) are provided on the implement (2).

9. An agricultural machine, comprising

- a control system (3);

- a user terminal (7) provided in the control system (3) and connected to a power sup- ly (13);

* functional control elements (10a; 10b); and

- a control bus (6) provided in the control system (3) and configured to transmit control signals from the user terminal (7) to the functional elements (10a; 10b);

wherein the user control system (3) is configured to operate the user terminal (7) accord- ing to a method of at least one of the preceding claims.