EP0299386A2
Expired / Lapsed
EP
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Prefabricated continuous road marking tape having optical and electromagnetic function
Assignee: Individual
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Filing: 1988-07-08
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Granted: —
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Expires: 2008-07-08
Abstract
Abstract A prefabricated continuous road marking tape is described, which includes retroreflecting optical components, light emitting diodes (LEDs), solar cells, storage batteries, and reflectors and transmitters of electromagnetic waves. There are given examples of the use of the reflectors in order to control the speed of a vehicle which travels at the side of the tape, and examples of the use of erasable programmable read only memories (EPROMs) where messages are recorded, with the purpose of giving informations about the conditions of the road, the presence of ice or of traffic jams, said messages being transmitted by a radio-transmitter.
Inventors
- 👤 Ludwig Dr. Eigenmann
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-27 14:06
CPC Classifications
G; G08; G08G; G08G1/00; G08G1/09; G08G1/0962; G08G1/0967; G08G1/096708; G08G1/096716; G08G1/096725; G08G1/096733; G08G1/096758; G08G1/096766; G08G1/096783
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
101 words
- A continuous prefabricated multi-layer road-marking tape securable on a road surface comprising: a) an upper face layer having protrusions including an electrical circuit having operably interconnected: I. retroreflective components II. solar cells III. storage batteries IV. light emitting diodes (LEDs), and V. transmitting units exploiting only the solar energy incident on the tape itself, the roadmarking function of the tape being based upon the optical irradiations originating from the upper face layer of the tape; and b) at least one lower layer, including electromagnetic irradiation means in the form of reflectors, together with an EMI shielding from road bottom perturbations.
Claim 2
Dependent Claim
101 words
- A continuous prefabricated multi-layer road-marking tape securable on a road surface comprising: a) an upper face layer having protrusions including an electrical circuit having operably interconnected: I. retroreflective components II. solar cells III. storage batteries IV. light emitting diodes (LEDs), and V. transmitting units exploiting only the solar energy incident on the tape itself, the roadmarking function of the tape being based upon the optical irradiations originating from the upper face layer of the tape; and b) at least one lower layer, including electromagnetic irradiation means in the form of reflectors, together with an EMI shielding from road bottom perturbations.
Claim 3
Dependent Claim
56 words
-A continuous prefabricated multi-layer road-marking tape securable on a road surface, as in claim 1, said reflectors being in the form of conductive stripes adhering to the lower layer of the tape itself as a source of electromagnetic irradiations, said stripes forming a gigaherz reflector operating within a protected tape structure which provides higher energy efficiency.
Claim 4
Dependent Claim
69 words
- A continuous prefabricated multi-layer road-marking tape securable on a road surface, as in claim 2, said gigaherz reflector being concretized by multiple conductive stripes dipped within an adhesive adhering to said lower layer, said stripes being specifically positioned at an angular direction with respect to the traffic direction, assuring reception of electromagnetic reflective waves broadside of the tape, and thereby the control of the speed of a vehicle.
Claim 5
Dependent Claim
57 words
- A continuous prefabricated multi-layer road-marking tape securable on a road surface, as in claim 1, said reflectors being in the form of conductive stripes adhering to the lower layer of the tape itself as a source of electromagnetic irradiation, said stripes forming a megaherz antenna, operating within a protected tape structure which provides higher energy efficiency.
Claim 6
Dependent Claim
44 words
- A continuous prefabricated multi-layer road-marking tape securable on a road surface, as in claim 4, said megaherz antenna adhering by adhesive to said lower layer of tape and further including an emitting transmitter positioned on the tape for transmitting messages registered in EPROM.
Claim 7
Dependent Claim
42 words
- A continuous prefabricated multi-layer road-marking tape securable on a road surface, as in claim 5, wherein the message registered in EPROM concerns the presence of ice on the road and is transmittable on the basis of negative temperature control (NTC) indications.
Claim 8
Dependent Claim
83 words
- A continuous prefabricated multi-layer road-marking tape securable on a road surface, as in claim 5, said tape further including: I. a microswitch placed within a compressible portion of said tape, said microswitch being activated upon compression by a vehicle positioned on said compressible portion; II. an EPROM connected to said microswitch so as to transmit a message concerning a traffic jam; and III. a series of directional lights activated by said microswitch, so as to divert vehicular traffic during a traffic jam.
Claim 9
Dependent Claim
92 words
- A continuous prefabricated multi-layer road-marking tape securable on a road surface, as in claim 1, sadi upper face further including: a) a wear resistant upper face and b) an impregnated non-woven layer, and said lower face further including: I. a gigaherz reflector supported at a distance from a megaherz antenna activated by a megaherz transmitter positioned on the tape; II. a circuit layer with conductive net stripes dipped in adhesive; III. an EMI shielding layer with extensible textile web, so as to allow removal of said tape from the road surface.
References Cited (Backward Citations)
No citation records indexed.
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