Distributed sensor system for sensing body parts and persons within the hazard zones of a convertible top

A technology for dangerous areas and body parts, applied in the field of safety systems, can solve the problem of complex and expensive shielding, and achieve the effect of small design complexity and low cost

Pending Publication Date: 2020-08-28
WEBASTO AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Shielding of lines is complex and expensive
Additionally, dedicated and expensive connectors are required to connect the wires to the processing unit's circuit board

Method used

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  • Distributed sensor system for sensing body parts and persons within the hazard zones of a convertible top
  • Distributed sensor system for sensing body parts and persons within the hazard zones of a convertible top
  • Distributed sensor system for sensing body parts and persons within the hazard zones of a convertible top

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Embodiment Construction

[0047] In the following description of the present invention, the same reference numerals are used for the same and the same function elements.

[0048] figure 1 An embodiment of the security system 10 having three sensor nodes 11a, 11b, 11c and an analysis and evaluation unit 13 according to the present invention is shown by way of example. The three sensor nodes and the analysis and evaluation unit are transmitted via data The devices 12 are connected to each other in a signal conducting manner. Each sensor node 11a, 11b, 11c includes a capacitive sensor 15a, 15b, 15c and associated processing unit 16a, 16b, 16c, the capacitive sensor and the associated processing unit together form a structural unit, such as The structural unit is formed by arranging them together in a housing, on a circuit board connected to each other or on a carrier. The sensor nodes 11a, 11b, and 11c are respectively connected to the data transmission device 12 via connection lines 14a, 14b, and 14c in a ...

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Abstract

The invention relates to a safety system (10) for detecting a body part within a hazard zone for a vehicle (100), to a top (20) having such a safety system, and to a corresponding method. The safety system (10) according to the invention comprises: at least one sensor node (11a, 11b, 11c), each of which has a capacitive sensor (15a, 15b, 15c) and a processing unit (16a, 16b, 16c), the capacitive sensor (15a, 15b, 15c) having at least one electrode and being designed to sense a change in capacitance owing to an approach of a body part to the electrode, and the processing unit (16a, 16b, 16c) being designed to generate capacitance change data on the basis of a change in capacitance sensed by the capacitive sensor (15a, 15b, 15c); an evaluation unit (13) which is designed to detect, at leaston the basis of received capacitance change data, that there is a body part within a hazard zone; and a data transmission device (12) for transmitting the generated capacitance change data from a sensor node (11a, 11b, 11c) to the evaluation unit (13).

Description

Technical field [0001] The invention relates to a safety system for detecting body parts in a dangerous area of ​​a vehicle, to a vehicle roof with such a safety system and to a corresponding method. Background technique [0002] Known from the prior art is a proximity sensor based on capacitance measurement and capable of sensing the proximity of an object, such as a human body part, without contact by means of a capacitance change. Such sensors can be used to avoid dangerous situations, for example by means of sensors that cause an emergency stop of a drive motor or a timely stop of moving machine parts. Non-contact sensors are usually installed in modern motor vehicles and ensure anti-pinch protection, such as preventing fingers from being caught in gaps in windows that can be closed with the help of electric window regulators or automatic closing tailgates or trunk lids. In the crevice. [0003] WO 2007 / 048640 A1 discloses a circuit for sensing the proximity of an object, suc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V3/08H03K17/955E05F15/46
CPCG01V3/088H03K17/955E05Y2900/508E05Y2400/52E05Y2400/852E05F15/40H03K2217/94094B60R11/00B60R21/0136B60R2011/004
Inventor A·施特拉塞尔
Owner WEBASTO AG
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