Signal detecting device for detecting a difference signal for an electrical measurement of a vital parameter of a living being
First Claim
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1. A signal detecting device for determining a difference signal for an electrical measurement of a vital parameter of a living being, comprising:
- a plurality of electrodes configured to contact the living being and provide electrode signals; and
an electrode selecting device configured to select a pair of electrodes for determining the difference signal from the plurality of electrodes based on the electrode signals so that a difference signal suitable for measuring the vital parameter is derivable from the electrode signals of the selected electrodes;
wherein the electrode selecting device is configured to;
apply a reference signal to a first electrode from the plurality of electrodes,to detect an electrode signal at a second electrode from the plurality of electrodes,to decide, based on a signal strength of the electrode signal at the second electrode, whether the first electrode and the second electrode contact the living being sufficiently, andto select, responsive to a decision that the first electrode and the second electrode contact the living being sufficiently well, the first electrode and the second electrode as the pair of electrodes for determining the difference signal, or to mark the first electrode and the second electrode as candidate electrodes for the selection of the pair of electrodes for determining the difference signal.
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Abstract
What is described are a signal detecting device for detecting a vital parameter of a living being, having a plurality of electrodes and an electrode selecting device for selecting a pair of electrodes from the plurality of electrodes such that a difference signal suitable for measuring the vital parameter is derivable, an electrode arrangement and a method.
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Citations
19 Claims
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1. A signal detecting device for determining a difference signal for an electrical measurement of a vital parameter of a living being, comprising:
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a plurality of electrodes configured to contact the living being and provide electrode signals; and an electrode selecting device configured to select a pair of electrodes for determining the difference signal from the plurality of electrodes based on the electrode signals so that a difference signal suitable for measuring the vital parameter is derivable from the electrode signals of the selected electrodes; wherein the electrode selecting device is configured to;
apply a reference signal to a first electrode from the plurality of electrodes,to detect an electrode signal at a second electrode from the plurality of electrodes, to decide, based on a signal strength of the electrode signal at the second electrode, whether the first electrode and the second electrode contact the living being sufficiently, and to select, responsive to a decision that the first electrode and the second electrode contact the living being sufficiently well, the first electrode and the second electrode as the pair of electrodes for determining the difference signal, or to mark the first electrode and the second electrode as candidate electrodes for the selection of the pair of electrodes for determining the difference signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An electrode arrangement comprising:
- a plurality of electrodes; and
an electrode selecting device configured to select a pair of electrodes for determining a difference signal from the plurality of electrodes based on the electrode signals so that a difference signal suitable for measuring a vital parameter of a living being is derivable from the electrode signals of the selected electrodes; wherein the electrode selecting device is configured to;
apply a reference signal to a first electrode from the plurality of electrodes, to detect an electrode signal at a second electrode from the plurality of electrodes, to decide, based on a signal strength of the electrode signal at the second electrode, whether the first electrode and the second electrode contact the living being sufficiently, to select, responsive to a decision that the first electrode and the second electrode contact the living being sufficiently well, the first electrode and the second electrode as the pair of electrodes for determining the difference signal, or to mark the first electrode and the second electrode as candidate electrodes for the selection of the pair of electrodes for determining the difference signal;wherein the plurality of electrodes are arranged in a motorcar (MC) so as to contact an MC user; wherein at least the first electrode from the plurality of electrodes is arranged at or in an operating element of the MC; wherein at least the second electrode from the plurality of electrodes is arranged at or in a rest element of the MC; and wherein the rest element is an armrest area, a door panel or a central arm panel. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
- a plurality of electrodes; and
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18. A method for determining a difference signal for an electrical measurement of a vital parameter of a living being using a plurality of electrode signals from a plurality of electrodes, comprising:
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a) detecting a plurality of electrode signals from the electrodes configured to contact the living being and provide electrode signals; b) selecting a pair of electrodes from the plurality of electrodes based on the electrode signals such that a difference signal suitable for measuring the vital parameter is derivable from the electrode signals of the selected electrodes; c) deriving a difference signal suitable for measuring the vital parameter from the electrode signals of the selected pair of electrodes; d) applying a reference signal to a first electrode from the plurality of electrodes; e) detecting an electrode signal at a second electrode from the plurality of electrodes; f) deciding, based on a signal strength of the electrode signal at the second electrode, whether the first electrode and the second electrode contact the living being sufficiently; and g) selecting, responsive to a decision that the first electrode and the second electrode contact the living being sufficiently well, the first electrode and the second electrode as the pair of electrodes for determining the difference signal, or to mark the first electrode and the second electrode as candidate electrodes for the selection of the pair of electrodes for determining the difference signal.
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19. A signal detecting device for determining a difference signal for an electrical measurement of a vital parameter of a living being, comprising:
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a plurality of electrodes configured to contact the living being and provide electrode signals; and an electrode selecting device configured to select a pair of electrodes for determining the difference signal from the plurality of electrodes based on the electrode signals so that a difference signal suitable for measuring the vital parameter is derivable from the electrode signals of the selected electrodes; wherein the electrode selecting device is configured to compare, when selecting a pair of electrodes for measuring the vital parameter, a first difference signal of a first pair of electrodes from the plurality of electrodes to a second difference signal of a second pair of electrodes from the plurality of electrodes, and to select that pair of electrodes for determining the difference signal for the electrical measurement of the vital parameter, comprising, when selecting, the greatest difference signal.
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Specification