Boots – shoes – and leggings
Patent
1991-10-07
1994-12-13
Teska, Kevin J.
Boots, shoes, and leggings
34031001, G01B 700
Patent
active
053734530
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention relates to a centralized apparatus for displaying disordered locations of lighting fixtures and a method of collecting information on the nature of the disorders, and more particularly to an apparatus in which disorders occurring in discharge lamps (such as street lamps) installed at disperse locations can be checked by means of a central control unit.
BACKGROUND OF THE INVENTION
Generally hundreds and thousands of street lamps are installed in such a manner that they can be controlled by a central control processor. However, if the state of operation of a street lamp is to be checked, the actual site of the street lamp has to be visited to confirm the operative state of the street lamp, with the result that too much of the time is consumed.
Further, if a large number of street lamps are to be repaired, large quantities of lamps and ballast coils have to be loaded and carried by a vehicle, and therefore, the repairing team contributes to traffic congestion. At present there are disorder display devices installed at the lower portions of electric poles, but their functions are restricted to displaying power source disorders, ballast coil disorders, lamp disorders and the like. A detailed description of this matter is found in Korean Utility Model Publication No. 89-3957.
SUMMARY OF THE INVENTION
Therefore it is an object of the present invention to provide a disorder location displaying apparatus and a method of collecting information on such disorders, in which tens and hundreds of street lamps can be checked as to their operational state from a central unit such that the defective lamp may be visited and repaired, thereby providing a solution to the above described problem present in the conventional art.
According to the apparatus of the present invention, tens and hundreds of street lamps can be checked with regard to power source disorders, lamp disorders, ballast coil disorders and the like from a single central checking unit.
In achieving the above object, the disorder location displaying apparatus according to the present invention includes:
a plurality of unit disorder detectors for detecting a disordered state in the power source, ballast coil, discharge lamp and the like, and for transmitting the detected data to a central control processor;
a plurality of coupling means for coupling the unit disorder detectors in such a manner as to enable communications based on a frequency other than the power source frequency;
another coupling means for coupling the power line with the central control processor;
a central control processor for collecting and memorizing in a sequence the disorder information detected by the unit disorder detectors through bilateral communications; and
a disorder display connected to the central control processor in such a manner as to visibly display the stored disorder information based on the command of the operator.
BRIEF DESCRIPTION OF THE DRAWINGS
The above object and other advantages of the present invention will become more apparent by describing in detail the preferred embodiment of the present invention with reference to the attached drawings in which:
FIG. 1 is a block diagram showing the constitution of the centralized disorder displaying apparatus for lighting fixtures according to the present invention;
FIG. 2 is a block diagram showing the constitution of the central control processor of FIG. 1;
FIG. 3 is a block diagram showing the constitution of the unit disorder detector of FIG. 1;
FIG. 4 is a block diagram showing the constitution of the coupling means of FIG. 1;
FIG. 5 is a detailed circuital illustration of the block A of FIG. 3;
FIG. 6 is a circuital illustration of the disorder display of FIG. 1;
FIG. 7 is a flow chart showing the operation of the device of FIG. 2; and
FIG. 8 is a flow chart showing the operation of the device of FIG. 3.
DESCRIPTION OF THE PREFERRED EMBODIMENT
The preferred embodiment of the present invention will be described in detail with reference to the attached drawings.
FIG
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patent: 4556865 (1985-12-01), Fukagawa et al.
patent: 4611274 (1986-09-01), Machino
patent: 4633218 (1986-12-01), Palsgrove et al.
patent: 4962496 (1990-10-01), Vercellotti
patent: 4988988 (1991-01-01), Kimura
Peeso Thomas
Teska Kevin J.
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