Patent US5095502A successfully refreshed from Google Patents.
US5095502A
Expired / Lapsed
US
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System for the detection and localization of defective lamps of an urban lighting network
Assignee: Individual
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Filing: 1988-12-05
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Granted: 1992-03-10
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Expires: 2008-12-05
Abstract
Abstract A unit for detection and signalizing of functional defects for public lighting. A unit characterized by the fact that it comprises, for the one part, an emitter module (21) with which each street lamp is equipped, preferably located in its post, at the level of the junction box, the emitter module being equipped with a detector for current consumption (23) using the alternative network of the supply line as the carrier of a detection signal, and for the other part, of a receiver module (22) located in the supply cabinet of the same zone, this receiver module managed by a microprocessor which transmits a defect signal to the control room over a telephone line. This invention is of interest for manufacturers and installers of materials, equipment and components for public lighting.
Inventors
- 👤 Jean-Luc Finzel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:26
CPC Classifications
H; H05; H05B; H05B47/00; H05B47/20; H05B47/21; H05B47/22
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
145 words
A unit for detection, localization, and signalizing of functional defects of each lighting unit in a lighting network divided into zones (1,2,3,4), particularly a public lighting network, comprising a zone supply line coming from a cabinet (5,6,7,8), with the zones furthermore each being connected with a central electrical supply and with a central monitoring computer (17) in a control room (18), characterized by the fact that said unit comprises, for each zone: an emitter module (21) with which each street lamp is equipped, said emitter module being equipped with a detector (23) for detecting current consumption and for emitting a detections signal characteristic thereof; and a receiver module (22) managed by means of a microprocessor which transmits a defect signal to the control room over a telephone line connecting each zone to the monitoring computer (17), for the purpose of intervention by a maintenance team.
Claim 2
Dependent Claim
145 words
A unit for detection, localization, and signalizing of functional defects of each lighting unit in a lighting network divided into zones (1,2,3,4), particularly a public lighting network, comprising a zone supply line coming from a cabinet (5,6,7,8), with the zones furthermore each being connected with a central electrical supply and with a central monitoring computer (17) in a control room (18), characterized by the fact that said unit comprises, for each zone: an emitter module (21) with which each street lamp is equipped, said emitter module being equipped with a detector (23) for detecting current consumption and for emitting a detections signal characteristic thereof; and a receiver module (22) managed by means of a microprocessor which transmits a defect signal to the control room over a telephone line connecting each zone to the monitoring computer (17), for the purpose of intervention by a maintenance team.
Claim 3
Dependent Claim
43 words
A unit according to claim 1, characterized by-the fact that the signal of the detector (23) for current consumption drives a frequency oscillator specific to each lighting unit of the same zone, the frequency sent on the supply line to a zone cabinet.
Claim 4
Dependent Claim
72 words
A unit according to claim 1, characterized by the fact that the receiver module (22) provided in a supply cabinet (32) comprises a frequency sampler and analyzer (32) followed by an encoder (34) for transmission by way of the telephone line or lines of the coded information corresponding to signalizing of the defects and their localization to the computer in the control room, the receiver unit being driven by a microprocessor (36).
Claim 5
Dependent Claim
45 words
A detection unit according to claim 1, characterized by the fact that the detector (23) for current consumption of the emitter module (21) is a voltage detection circuit (24); branched to terminals of a resistor (25) in series with a bulb of the lighting unit.
Claim 6
Dependent Claim
36 words
A detection unit according to claim 4, characterized by the fact that the signal of the said detector (23) for current consumption controls an oscillator by failure of voltage at the terminals of the resistor (25).
Claim 7
Dependent Claim
57 words
A detection unit according to claim 1, characterized by the fact that the frequency analyzer (33) of the receiver module (22) detects the presence of one or more frequencies emitted by the emitter module or modules (21) of the zone in question and by the fact that the encoder (34) assigns a code to each recognized frequency.
Claim 8
Dependent Claim
60 words
A detection unit according to claim 6, characterized by the fact that the code is comprised of two letters and four numbers, the first two letters and the first two numbers being reserved for the zone which they represent, and the last two numbers for a row of the zone of the bulb in question, corresponding to the frequency detected.
Claim 9
Dependent Claim
52 words
A detection unit according to claim 3 characterized by the fact that the receiver module (22) is managed by a microprocessor (36) connected to a plug-in keyboard (37), the said microprocessor controlling the sampler (33) and the encoder (34) for the purpose of transmitting the information by way of the telephone lines.
Claim 10
Dependent Claim
32 words
A detection unit according to claim 1, characterized by the fact that the frequency of the signal of the emitter module (21) is notably different from that of the electrical supply network.
Claim 11
Dependent Claim
115 words
A unit according to claim 1, characterized by the fact that the emitter module (21) comprises a microprocessor MP which generates a row code for identification and localization directly to the receiver module (22) when the status of the detector (23) communicates a functional failure of the unit (20) to the microprocessor, this code being modulated by a carrier current and carried by the electrical supply lines of each zone, and by the fact that the receiver module (22) comprises an interface, a demodulator block, managed by a second microprocessor, which completes a complete code word to be sent to the monitoring computer by a MODEM over a telephone line, by assigning a zone code.
Claim 12
Dependent Claim
26 words
A unit according to claim 10, characterized by the fact that the code for identification and localization of the lamp is introduced into the microprocessor Mp.
Claim 13
Dependent Claim
26 words
A unit according to claim 10, characterized by the fact that the code for identification and localization of the zone is introduced into the microprocessor MPC.
Claim 14
Dependent Claim
24 words
A unit according to claim 10, characterized by the fact that the emitter module (21) comprises an amplifier-detector circuit ADP for the carrier current.
Claim 15
Dependent Claim
25 words
A unit according to claim 10, characterized by the fact that the unit further comprises a recognition circuit REP for recognition of the carrier current.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-03-10 | 1995-09-09 | 1996-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-03-10 | 1999-09-09 | 2000-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-03-10 | 2003-09-09 | 2004-03-10 | $7700.00 | Window Closed / Lapsed |