Measuring system and measuring method for detecting at least one frequency independent electrical quantity

• US 20100057304A1
• Filed: 11/06/2009
• Published: 03/04/2010
• Est. Priority Date: 05/09/2007
• Status: Abandoned Application

• Current Assignee: Takata-Petri AG
• Original Assignee: Takata-Petri AG
• Inventors: Kandler, Marcus
• Application Number:
  US12/591,076
• Publication Number:
  US 20100057304A1
• Time in Patent Office: Days
• US Class Current: 701/47
• CPC Class Codes: B60N 2/002 Seats provided with an occupancy detection means mounted therein or thereon detection means responsive to presence or absence of children B60N2/266
• CPC Class Codes: B60N 2/2887 Fixation to a transversal anchorage bar, e.g. isofix
• CPC Class Codes: B60R 21/01532 using electric or capacitive field sensors
• CPC Class Codes: B60R 21/0154 in combination with seat heating

Abstract

A measuring system is provided. The measuring system comprising at least a first measuring means for detecting at least one frequency-independent electrical quantity and an evaluation unit for detecting the temporal behaviour of the frequency-independent electrical quantity. The evaluation unit automatically generates from the detection of the temporal course of the frequency-independent electrical quantity a signal that is at least partially equivalent to a frequency-dependent signal. Furthermore a measuring method is provided, in which at least a first measuring means detects at least a frequency-independent electrical quantity and an evaluation unit detects the temporal behaviour of the frequency-independent quantity. The evaluation unit automatically generates a signal from the detection of the temporal course of the frequency-independent electrical quantity, which signal is at least partially equivalent to a frequency-dependent quantity.

Claims

1. A measuring system, comprising:

a) at least one measuring means for detecting at least one frequency-independent electrical quantity;

b) an evaluation unit for detecting the temporal behaviour of the frequency-independent electrical quantity, wherein

c) the evaluation unit automatically generates from the detection of the temporal course of the frequency-independent electrical quantity a signal that is at least partially equivalent to a frequency-dependent signal.

2. The measuring system of claim 1, wherein the first measuring means comprises a capacitor and/or a coil.

3. The measuring system of to claim 1, wherein the frequency-independent electrical quantity is a current, a voltage and/or a charge.

4. The measuring system of claim 1, wherein the temporal behaviour of a charging and/or discharging process is detected by the evaluation unit.

5. The measuring system of claim 1, wherein the at least one measuring means and the at least one evaluation unit are arranged in a vehicle.

6. The measuring system of claim 1, wherein a first electrode of a capacitor is part of a first component, wherein a second electrode of a second component can be coupled to the first electrode.

7. The measuring system of claim 6, wherein a signal about the state of the mechanical connection between the first component and the second component can be generated from the dynamics of the charging and/or discharging of the capacitor.

8. The measuring system of claim 6, wherein the first electrode of the capacitor is coupled to a fastening bail of an ISOFIX child seat, and the second electrode of the capacitor is coupled to a child seat for the vehicle.

9. The measuring system of claims 6, wherein at least one component is part of a latch, so that at least one signal of the evaluation unit can be used for detecting a connection.

10. The measuring system of claim 1, further comprising a coupling to at least one measuring means for detecting a frequency dependent quantity.

11. The measuring system of claim 1, further comprising a coupling to an occupant protection system, particularly an airbag system in a vehicle.

12. A device for installation into a motor vehicle, wherein it can be coupled to a measuring system of claim 1.

13. The device of claim 12, wherein it is formed as a child seat for a vehicle.

14. The device of claim 13, wherein the child seat comprises a thin insulating layer.

15. A measuring method, comprising the steps of:

(a) detecting at least frequency-independent electrical quantity using a first measuring means;

(b) detecting the temporal behaviour of the frequency-independent electrical quantity using an evaluation unit detects, wherein

c) the evaluation unit automatically generates from the detection of the temporal course of the frequency-independent electrical quantity a signal that is at least partially equivalent to a frequency-dependent signal.