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Capacitive sensor system

A sensor, capacitive technology, applied in the field of gates or windows or doors, can solve the problems of increasing the complexity of the sensor system, and achieve the effect of flexible configurability, simple mechanics, and reduced complexity

Pending Publication Date: 2020-07-21
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The complexity of the sensor system increases with the number of sensors, as a result of which transition problems in the transition region between the sensors also have a disadvantageous effect, especially in safety-related applications.

Method used

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  • Capacitive sensor system
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Examples

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Embodiment Construction

[0037] For better understanding and for orientation, figure 1 A sensor 47 is shown, which has an electrode 45 and an electrode 46 . In this case, sensor 47 and electrodes 45 , 46 are linearly elongated and straight. The wire-shaped electrode 45 is arranged above the planar electrode 46 , wherein the planar electrode 46 is applied to a carrier 49 . Field lines 48 are formed, which are roughly schematically reproduced not exactly to scale and also not geometrically / electrically correct. The field lines described only serve to roughly illustrate the principle. If an object or an object enters the spatial region covered by the field lines 48 , the field distribution changes, in particular due to the resulting change in capacitance between the electrodes 45 , 46 and the object / object is thus detected. Here, the spacing of the electrodes 45, 46 is substantially limited to the width of the configuration. As a result, the effective distance (reichweite) (symbolized by field lines)...

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Abstract

The invention relates to a sensor system (1) for surroundings monitoring. The sensor system (1) has at least two capacitive sensors (2, 3), each of which has at least one sensor electrode (4, 5, 6, 7)designed for capacitive surroundings measurement, each sensor (2, 3) has a detection region (8, 9), in which a capacitive effective change of the surroundings, in particular due to the approach and / or contact of objects or objects, can be detected, and the detection regions (8, 9) of at least two sensors (2, 3) form a final monitoring region (10). In order to ensure a more reproducible, more deterministic and more reliable output: it is proposed that the detection regions (8, 9) of the adjacent sensors (2, 3) overlap locally and / or are directly adjacent, so that the finally obtained monitoring region (10) is coherent and the coherent monitoring region (10) forms at least part of a particularly completely monitored, predetermined safety geometry (11).

Description

technical field [0001] The invention relates to a sensor system for surroundings monitoring according to the preamble of claim 1 and to a gate or window or door with a sensor system according to claim 10 . Background technique [0002] Known sensor systems for ambient monitoring have at least two capacitive sensors each having at least one sensor electrode. The sensor electrodes are designed for capacitive ambient measurement. In this case, each sensor has a detection range within which effective changes in the capacitance of the surrounding environment can be detected. If at least two sensors are jointly evaluated, they jointly cover the resulting monitored area here. [0003] The complexity of the sensor system increases with the number of sensors, as a result of which transition problems in the transition region between the sensors also have a disadvantageous effect, especially in safety-related applications. Contents of the invention [0004] It is therefore the obj...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D5/241G01V3/08
CPCG01D5/2412G01V3/08G01V3/088E05F15/46H03K17/955H03K2217/960775E05Y2900/132E05Y2900/106
Inventor A.博南贝格C.菲舍尔R.尼斯R.鲍尔
Owner ROBERT BOSCH GMBH