Device and method for sensing and protection of persons and objects
First Claim
1. An electronic device for sensing and protection of a member selected from a group consisting of persons and objects in a sensing lobe associated with an automatic device, said electronic device for sensing and protection comprising a wave transmitter covering a determined spatial sensing field, and a wave receiver for controlling the automatic device;
- a radiating antenna comprising a waveguide comprising lateral faces, wherein one of the lateral faces includes slots arranged thereon, said slots effectuating radiation in planes substantially perpendicular to a longitudinal direction of the waveguide, wherein the wave transmitter and the wave receiver are arranged at one end of the waveguide;
a matched load arranged at an opposite end of the wave guide;
substantially identical reflectors arranged over substantially the whole length of the waveguide, said reflectors extending essentially symmetrically with respect to longitudinal plane of symmetry of the waveguide and making a predetermined angle with one another, wherein the waveguide and the reflectors comprise at least one piece.
1 Assignment
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Accused Products
Abstract
An electronic device including a wave transmitter covering a determined spatial sensing field, and a wave receiver for controlling an automatic device; a radiating antenna including a waveguide having lateral faces and slots arranged on one of the lateral faces, wherein the slots radiate in planes substantially perpendicular to a longitudinal direction of the waveguide, and wherein the wave transmitter and the wave receiver are arranged at one end of the waveguide; a matched load arranged at an opposite end of the wave guide; substantially identical reflectors arranged over substantially the whole length of the waveguide, wherein the reflectors extend essentially symmetrically with respect to longitudinal plane of symmetry of the waveguide and making a predetermined angle with one another, and wherein the waveguide and the reflectors are composed of at least one piece.
36 Citations
19 Claims
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1. An electronic device for sensing and protection of a member selected from a group consisting of persons and objects in a sensing lobe associated with an automatic device, said electronic device for sensing and protection comprising a wave transmitter covering a determined spatial sensing field, and a wave receiver for controlling the automatic device;
- a radiating antenna comprising a waveguide comprising lateral faces, wherein one of the lateral faces includes slots arranged thereon, said slots effectuating radiation in planes substantially perpendicular to a longitudinal direction of the waveguide, wherein the wave transmitter and the wave receiver are arranged at one end of the waveguide;
a matched load arranged at an opposite end of the wave guide;
substantially identical reflectors arranged over substantially the whole length of the waveguide, said reflectors extending essentially symmetrically with respect to longitudinal plane of symmetry of the waveguide and making a predetermined angle with one another, wherein the waveguide and the reflectors comprise at least one piece. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
- a radiating antenna comprising a waveguide comprising lateral faces, wherein one of the lateral faces includes slots arranged thereon, said slots effectuating radiation in planes substantially perpendicular to a longitudinal direction of the waveguide, wherein the wave transmitter and the wave receiver are arranged at one end of the waveguide;
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18. A process for sensing a member selected from a group consisting of persons, animate objects and inanimate objects in a sensing lobe associated with a movable automatic device by means of a sensor installed on the movable device so as to cover a determined spatial sensing field and produce a sensing signal, said process comprising the following steps:
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measuring said sensing signal as a function of motion of a movable automatic device in the absence of any obstacle, storing an evolution of said sensing signal in an electronic memory in order to serve as a reference curve, measuring a value of the sensing signal continuously as a measured value and comparing the measured value with a corresponding value of said reference curve, using a deviation between the measured value of said sensing signal and the corresponding value of the reference curve to indicate a presence of an obstacle formed by a member selected from the group consisting of persons, animate objects and inanimate objects in the sensing field. - View Dependent Claims (19)
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Specification