Handheld unit with combined signal evaluation

The method of claim 1, further comprising comparing the output signals of the modules to predetermined second signal patterns;

• and transmitting an emergency shutdown request to the control device if the output signals of the modules match a predetermined second signal pattern.

The method of claim 2, further comprising including output signals of at least one member of group comprising a magnetic field sensor and a microphone module in the comparison to the predetermined second signal patterns.

The method of claim 1, further comprising transmitting an alive signal from the evaluation device to the control device at cyclic intervals.

The method of claim 1, further comprising including output signals of at least one brightness sensor in the comparison to predetermined first signal patterns.

The method of claim 1, further comprising comparing the output signals of an acceleration sensor to vibration and/or acceleration limit values.

A handheld unit for an industrial technical system having multiple activatable components, comprising:

• a user input device;
• multiple modules selected from a group including a proximity sensor, an acceleration sensor, an orientation sensor, a position-determining device and an image-capturing device,
• an evaluation device to which commands are input by the user input device and to which output signals are fed by selected modules, said evaluation device comparing output signals of the modules to predetermined first signal patterns and transmitting control commands that effect an activation of at least one component of the industrial technical system to a control device of the industrial technical system only if a command requesting the activation of said component is input by said user input and the output signals of the modules match a predetermined first signal pattern.