WO2005094136A1 - Half-level light signaling device - Google Patents
Half-level light signaling device Download PDFInfo
- Publication number
- WO2005094136A1 WO2005094136A1 PCT/IB2005/000712 IB2005000712W WO2005094136A1 WO 2005094136 A1 WO2005094136 A1 WO 2005094136A1 IB 2005000712 W IB2005000712 W IB 2005000712W WO 2005094136 A1 WO2005094136 A1 WO 2005094136A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cap
- signaling device
- antenna
- casing
- light source
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/175—Controlling the light source by remote control
- H05B47/19—Controlling the light source by remote control via wireless transmission
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/20—Responsive to malfunctions or to light source life; for protection
- H05B47/21—Responsive to malfunctions or to light source life; for protection of two or more light sources connected in parallel
- H05B47/22—Responsive to malfunctions or to light source life; for protection of two or more light sources connected in parallel with communication between the lamps and a central unit
Definitions
- the present invention relates to the technical field concerning transmission of radio-frequency signals from light sources, in particular from half-level signaling devices .
- such signaling devices include a casing defined by a lower part embedded in the ground and a metallic cap protruding from the casing and housing, in one or more separate seats, suitable prisms for lighting of the surrounding area.
- the power and control circuitry is situated in the part embedded in the ground, in order to feed the light source and to check its operational state and its physical integrity.
- the cap is made of a material, which bears the continuative action of the exogenous agents and of the mechanical stresses of compression, caused by the passage of possible means.
- These light sources usually constitute the loads of lighting equipments of a certain extension and importance, which supply airports or anyway areas, in which the operational continuity of the above apparatuses is essential for security.
- each load must have an antenna for this purpose.
- the half-level light signaling device is made of metallic material, therefore the electrom-agnetic wave emitted by the antenna possibly introduced imto the casing would be strongly weakened, and consequently the comprehensibility of the information signal contained therein would be put at risk.
- the degradation of the wave in input/output of th ⁇ e light signaling device can be limited by a suitable housing of the antenna made in the cap protruding from the ⁇ jround, which mutually isolates the metallic parts.
- the so obtained recess would --require an increase of the resulting thickness of the cap, needed to maintain intact the mechanical compactness with respect to the known solutions.
- the above solution facilitates the signal transmission, limiting its weakening to minimum, fxo the other side, it is expensive and complicated because it requires, as it has been noted, the definition of a suitable recess containing the antenna in the metallic cap and of a suitable isolation system between the antenna and the metallic part embedded in the ground.
- the object of the present invention is to propose .a. half- level signaling device, in which the cap - antenna assembly allows a transmission/reception of the signal, free of any weakening or deformation.
- Another object of the present invention is to propose the above cap - antenna assembly, which optimizes the isolation with respect to the mass of the antenna and which does not jeopardize the cap mechanical resistance.
- a further object of the present invention is to propose a simple technical solution, which is easy to realize and allows to reduce the production costs.
- the above mentioned objects are obtained in accordance with the contents of the claims .
- Figure 1 is a top view of a cap for a half-level light signaling device, proposed by the present invention
- Figure 2 is a schematic section view taken along II- II of Figure 1.
- the reference numeral 10 indicates a casing formed by a lower part 4, shown schematically and embedded in the ground (for example road surface, aircrafts runways, etc.) and the reference numeral 1 indicates the cap protruding from the ground.
- An antenna 2, connected to the cap 1 has terminals 5a and 5b connected to the circuitry situated in the lower part 4 of the light signaling device, not shown, as it is known.
- the cap includes one or more apertures 3a and 3b for housing suitable prisms (not shown, as they are known) , aimed at sending relative light beams, generated by one or more lamps (not shown) inserted in the lower part 4 of the casing, to the surrounding area.
- the cap is obtained from a synthetic resin, by molding.
- the antenna is introduced into the mold before the molding operation, so that at the end it is completely dipped to form one body with the cap.
- the cap made of metallic material, forms seats 9, which receive means (not shown) for removably fastening the cap to the lower part 4.
- prisms can be introduced into the mold during the molding operation.
- the prisms are rigidly fastened to the cap, forming a single body therewith.
- the cap - antenna assembly defines an extremely compact and rigid technical solution, which allows a maximum reduction of the production costs.
- the isolating material constituted by synthetic resin, which forms the cap ensures the best isolation and working of the antenna, avoiding the weakening mentioned in the introductory note.
- a further advantage of the present invention lies in the fact that it allows a perfect anchorage of the antenna with the cap containing it, avoiding any relative movement between the two considered elements, thus protecting it from external causes, such as atmospheric agents and/or mechanical stresses.
- the production of the prism by molding allows, during the design step, the antenna to be situated very accurately, so as to allow a prefixed irradiation angle for the transmission/reception of the electromagnetic waves from/to the antenna. It is understood that what above has been described as a mere, not limiting example. Therefore, it is obvious that any changes or variants applied thereto remain within the protective scope defined by the following claims.
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Details Of Aerials (AREA)
- Semiconductor Lasers (AREA)
- Led Devices (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/593,991 US20070171632A1 (en) | 2004-03-23 | 2005-03-18 | Half-level light signaling device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITBO2004U000025 | 2004-03-23 | ||
IT000025U ITBO20040025U1 (en) | 2004-03-23 | 2004-03-23 | SEMI-LEVEL LIGHT SIGNALER |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005094136A1 true WO2005094136A1 (en) | 2005-10-06 |
Family
ID=34964584
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2005/000712 WO2005094136A1 (en) | 2004-03-23 | 2005-03-18 | Half-level light signaling device |
Country Status (3)
Country | Link |
---|---|
US (1) | US20070171632A1 (en) |
IT (1) | ITBO20040025U1 (en) |
WO (1) | WO2005094136A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007144359A1 (en) * | 2006-06-13 | 2007-12-21 | O.C.E.M. S.P.A. | Supply and control device of a light source |
EP4293819A1 (en) | 2022-06-15 | 2023-12-20 | ADB Safegate BV | Guidance light fixture with rf antenna |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4132983A (en) * | 1976-01-12 | 1979-01-02 | Royal Industries, Inc. | Radio synchronized warning light system |
WO1993013984A1 (en) * | 1992-01-10 | 1993-07-22 | Guiding Star Pty, Ltd. | Pilot activated runway lighting system |
ES2101617A1 (en) * | 1993-12-31 | 1997-07-01 | Gonzalez Jose Jorba | Signalling cone |
DE29720800U1 (en) * | 1997-11-24 | 1998-01-22 | Siemens Ag | Underfloor fire for airports |
DE19809478A1 (en) * | 1998-03-06 | 1999-09-09 | Siemens Ag | Omnidirectional flush (inset) light for airport runway |
US6489733B1 (en) * | 1998-04-21 | 2002-12-03 | Siemens Aktiengesellschaft | Multi-purpose lighting system for airports, roads or the like |
US20030020417A1 (en) * | 2000-06-28 | 2003-01-30 | A.L. Air Data | Lamp monitoring and control unit and method |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5156454A (en) * | 1991-07-31 | 1992-10-20 | Daniel White | In ground recessed or projecting yard light |
CA2141250C (en) * | 1995-01-27 | 2006-05-02 | Fred Robert Barrow | Airport runway or taxiway light fixture |
US7088222B1 (en) * | 2002-11-13 | 2006-08-08 | Powerflare Corporation | Ruggedized illuminating, marking, or signaling device and system |
-
2004
- 2004-03-23 IT IT000025U patent/ITBO20040025U1/en unknown
-
2005
- 2005-03-18 WO PCT/IB2005/000712 patent/WO2005094136A1/en active Application Filing
- 2005-03-18 US US10/593,991 patent/US20070171632A1/en not_active Abandoned
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4132983A (en) * | 1976-01-12 | 1979-01-02 | Royal Industries, Inc. | Radio synchronized warning light system |
WO1993013984A1 (en) * | 1992-01-10 | 1993-07-22 | Guiding Star Pty, Ltd. | Pilot activated runway lighting system |
ES2101617A1 (en) * | 1993-12-31 | 1997-07-01 | Gonzalez Jose Jorba | Signalling cone |
DE29720800U1 (en) * | 1997-11-24 | 1998-01-22 | Siemens Ag | Underfloor fire for airports |
DE19809478A1 (en) * | 1998-03-06 | 1999-09-09 | Siemens Ag | Omnidirectional flush (inset) light for airport runway |
US6489733B1 (en) * | 1998-04-21 | 2002-12-03 | Siemens Aktiengesellschaft | Multi-purpose lighting system for airports, roads or the like |
US20030020417A1 (en) * | 2000-06-28 | 2003-01-30 | A.L. Air Data | Lamp monitoring and control unit and method |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007144359A1 (en) * | 2006-06-13 | 2007-12-21 | O.C.E.M. S.P.A. | Supply and control device of a light source |
EP4293819A1 (en) | 2022-06-15 | 2023-12-20 | ADB Safegate BV | Guidance light fixture with rf antenna |
WO2023242294A1 (en) | 2022-06-15 | 2023-12-21 | Adb Safegate Bv | Aeronautic ground light fixture with rf antenna |
Also Published As
Publication number | Publication date |
---|---|
US20070171632A1 (en) | 2007-07-26 |
ITBO20040025U1 (en) | 2004-06-23 |
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