1. A control device of an operating element in a motor vehicle, with a receiver that belongs to the operating element and into which signals are able to be inputted by a person, wherein the receiver of the operating element has a first coupling-in element and a second coupling-in element that are arranged at a defined distance from one another on an evaluation axis.
2. The control device defined in claim 1, wherein the quotient of the signal strength detected at the first coupling-in element of the receiver and the signal strength detected at the second coupling-in element of the receiver is the basis for the measuring or respectively determining of the distance between the signal source and the operating element.
3. The control device defined in claim 1, further comprising:
a transmitter able to be carried by the person and by means of which signal which is specific for the person is able to be transmitted.
4. The control device defined in claim 1, wherein an electrical field, functioning as a signal, is able to be coupled into the person.
5. The control device defined in claim 1, wherein the first coupling-in element and the second coupling-in element of the receiver are constructed as field sensors.
6. The control device defined in claim 5, wherein the field sensors on the receiver side are constructed as magnetic field sensors, by means of which a magnetic field corresponding to the specific signal transmitted by the transmitter or respectively to the electrical field coupled into the person is able to be evaluated.
7. The control device defined in claim 5, wherein the field sensors on the receiver side are constructed as field plates.
8. The control device defined in claim 5, wherein the field sensors on the receiver side are constructed as field coils.
9. The control device defined in claim 8, wherein a capacitor is associated with each field coil, which capacitor forms with it a resonant circuit that is coordinated with the frequency of the electrical field functioning as a signal.
10. The control device defined in claim 4, further comprising:
a coupling member that can couple the signal into the body of the person.
11. The control device defined in claim 10, wherein the coupling member is arranged on a vehicle seat.
12. The control device defined in claim 10, wherein the coupling member is arranged on a steering wheel.
13. The control device defined in claim 1, wherein the specification of the signals associated with different persons situated in the motor vehicle or respectively with different vehicle seats is realized by means of a presettable chronological sequence of the respective signals.
14. The control device defined in claim 1, wherein the first coupling-in element and the second coupling-in element are configured so that the signal strengths which are detected by them, with a presettable distance, e.g. with an operating distance, between them and signal source, are of equal extent.
15. The control device defined in claim 14, wherein the field plate or respectively the field coil of the coupling-in element which is further remote form the signal source is constructed correspondingly greater with regard to area or respectively with more bindings than the field plate or respectively field coil of the coupling-in element nearer to the signal source.
16. The control device defined in claim 14, wherein the coupling-in element nearer to the signal source has a correspondingly configured signal attenuator.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A data polling method performed between a CPU and an input unit for input data for the CPU, wherein the CPU comprises a data transmission instruction output processor, an input unit failure detection signal input processor; an input data storage memory, and a CPU operation processor, and the method comprising:
inputting a failure detection signal, from an input failure detection processor for detecting failure of the input unit, into the input unit failure detection signal input processor;
each time an input data update processor of the input unit updates data, storing the updated data in the input data storage memory;
obtaining input data in the CPU operation processor from the input data storage memory and obtaining a detection signal from the input unit failure detection signal input processor to perform operation processing, and
obtaining, by the CPU operation processor, periodic data over an amount of time given by the following expression:
{ROUNDUP(T22T1)}\xd7T1
where T22 is a failure detection processing time of the input unit failure detection processor, T1 is a data transmission instruction output period of the data transmission instruction output processor, and ROUNDUP is a function of rounding up to the nearest integer.
2. A digital instrumentation and control system for an atomic power plant that performs data polling between a CPU and an input unit for input data for the CPU, the digital instrumentation and control system comprising:
the CPU that comprises:
a data transmission instruction output processor,
an input unit failure detection signal input processor to which a failure detection signal is input from a input unit failure detection processor for detecting a failure of the input unit,
an input data storage memory that, each time an input data update processor of the input unit updates data, stores the updated data, and
a CPU operation processor that obtains input data from the input data storage memory and obtains a detection signal from the input unit failure detection signal input processor to perform operation processing; and
wherein the CPU operation processor obtains periodic data over an amount of time given by the following expression:
{ROUNDUP(T22T1)}\xd7T1
where T22 is a failure detection processing time of the input unit failure detection processor, T1 is a data transmission instruction output period of the data transmission instruction output processor, and ROUNDUP is a function of rounding up to the nearest integer.