CN1335044A - Lamp state detector and lamp state monitor using lamp state detector - Google Patents
Lamp state detector and lamp state monitor using lamp state detector Download PDFInfo
- Publication number
- CN1335044A CN1335044A CN99801247A CN99801247A CN1335044A CN 1335044 A CN1335044 A CN 1335044A CN 99801247 A CN99801247 A CN 99801247A CN 99801247 A CN99801247 A CN 99801247A CN 1335044 A CN1335044 A CN 1335044A
- Authority
- CN
- China
- Prior art keywords
- illuminating lamp
- mentioned
- illumination
- lamp
- light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
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
- H05B47/20—Responsive to malfunctions or to light source life; for protection
Abstract
By judging whether lamp replacement is required or not based on the illuminance of a lamp measured with a illuminometer, the time of lamp replacement can be determined before the illuminance is lowered below the required value bacause of lamp blackening. By judging whether lamp replacement is required or not based on the resistance value measured with a resistance meter, the time of lamp replacement can be determined before the illuminance is lowered below the required value because of deterioration of the filament. Therefore, illuminance decrease of the lamp due to both the lamp blackening and the filament cut can be detected before the illuminance is lowered below the required value, thereby determining the time of lamp replacement.
Description
Technical field
The present invention relates to detect the lamp state detector of the state that is arranged on a plurality of illuminating lamps that airport or highway etc. locate and use the lamp state monitoring arrangement of this lamp state detector.
Background technology
In the airport on the runway of aircraft, for vector aircraft etc. is provided with a plurality of illuminating lamps (mainly being Halogen lamp LED), still, as is generally known Halogen lamp LED because the gas leakage of halogen gas etc. causes that the melanism of illuminating lamp and the deterioration of filament cause that disconnected its illumination of core will reduce.The illumination of illuminating lamp reduces the guiding that will influence aircraft, so, must be reduced to the illuminating lamp that more renews less than before the needed illumination in the illumination of illuminating lamp.
Example as the device of the state that monitors Halogen lamp LED, Japanese kokai publication sho 62-249393 communique (below, be called the 1st prior art) in, put down in writing measure the value of the electric current that passes through in the filament of Halogen lamp LED for the disconnected core of the filament of Halogen lamp LED is prevented trouble before it happens and when the current value of measuring surpasses predefined set point, just warn filament soon disconnected core device.
In addition, Japanese kokai publication sho 60-250593 communique (below, be called the 2nd prior art) in, put down in writing the illumination of measuring illuminating lamp and reduced, reported the device in replacing period of illuminating lamp simultaneously according to the illumination of the illuminating lamp measured according to the illumination of the illuminating lamp of being measured the illumination that relatively detects illuminating lamp with predefined set point.
As previously mentioned, as the reason that the illumination of Halogen lamp LED reduces, be exactly the melanism of illuminating lamp and the disconnected core of filament, still, thought in the past that both had dependency relation.That is, in Halogen lamp LED, when disconnected core took place filament, illuminating lamp is melanism just, and on the contrary, when illuminating lamp melanism, filament is just disconnected core also.Therefore, thought in the past or as above-mentioned the 1st prior art by measuring the disconnected core that the electric current that passes through in the filament comes pre-measured filament, perhaps as the 2nd prior art, detect the melanism of illuminating lamp, as long as it is just enough to have carried out above-mentioned arbitrary detection among both by the illumination of measuring illuminating lamp.
But people such as present inventor reduce the result who constantly studies to the illumination of Halogen lamp LED, prove that the disconnected core of filament and the melanism of illuminating lamp are respectively other incidents, and the illumination of illuminating lamp reduces, and which side becomes reason and all can take place.That is, the disconnected core of existing filament and illuminating lamp not the situation of melanism illuminating lamp melanism and the filament situation of disconnected core is also arranged.In addition, be the illumination of former thereby illuminating lamp when reducing in the melanism of illuminating lamp, then little by little reduce through long time illumination, on the contrary, be former thereby illumination when reducing at the disconnected core of filament, then illumination just reduces sharp at short notice.
As mentioned above, in the 1st prior art, owing to be the disconnected core that comes pre-measured filament according to the value of the electric current that passes through in the filament, so, can not detect because the reduction of the caused illumination of melanism of illuminating lamp.That is, although the disconnected core of filament, when illumination reduces owing to the melanism of illuminating lamp, owing to the electric current that passes through in filament does not change, so, the reduction of illumination can not be detected.Therefore, can not be reduced in the illumination of illuminating lamp less than the replacing of carrying out illuminating lamp before the needed illumination.
On the other hand, in the 2nd prior art, owing to be replacing period of reporting illuminating lamp according to the illumination of measuring, so, because the disconnected core of filament and illumination when reducing sharp, were difficult to before the illumination of illuminating lamp is reduced to less than needed illumination report replacing period.That is, when the disconnected core of filament, illumination reduces sharp, so, in fact after illumination begins to reduce, just report replacing period, sometimes also before changing the illumination of illuminating lamp just be reduced to less than needed illumination.
Like this, in the 1st prior art and the 2nd prior art, can not be reduced in the illumination of illuminating lamp sometimes less than the replacing of carrying out illuminating lamp before the needed illumination.
Disclosure of an invention
It is that the illumination of former resulting illuminating lamp reduces and is that any one reason can both be reduced to less than the lamp state detector in replacing period of judging illuminating lamp before the needed illumination in the illumination of illuminating lamp and uses the lamp state monitoring arrangement of this lamp state detector during the illumination of former resulting illuminating lamp reduced with the disconnected core of filament that purpose of the present invention aims to provide for the melanism with illuminating lamp.
What achieve the above object the invention is characterized in: measure the illumination of the light that sends from illuminating lamp, measure the resistance value of illuminating lamp simultaneously, judge whether that according to the illumination of measuring and resistance value needs change illuminating lamp.
As mentioned above, owing to judge whether needs replacing illuminating lamp according to illumination of measuring and resistance value, so, when the illumination of illuminating lamp reduces owing to the melanism of illuminating lamp, just can before being reduced to less than needed illumination, the illumination of illuminating lamp judge the replacing period of illuminating lamp according to the illumination of measuring.In addition, when the illumination of illuminating lamp reduces owing to filament deterioration and disconnected core, just can before being reduced to less than needed illumination, the illumination of illuminating lamp judge the replacing period of illuminating lamp by before the disconnected core of filament, detecting deterioration according to the resistance value of measuring.That is be that the illumination of former resulting illuminating lamp reduces and is that any one reason can both be reduced in the illumination of illuminating lamp less than the replacing period of judging illuminating lamp before the needed illumination during the illumination of former resulting illuminating lamp reduced with the disconnected core of filament, for melanism with illuminating lamp.
The simple declaration of accompanying drawing
Fig. 1 is the structure chart as the lamp state monitoring arrangement of a splendid embodiment of the present invention.
Fig. 2 is the structure chart of the lamp state detector 5a among Fig. 1.
Fig. 3 is the light a lamp curve chart of relation of cumulative time and resistance ratios of expression.
Fig. 4 is the figure of the demonstration example on the display floater 91 of the lamp state display 9 in the presentation graphs 1.
Fig. 5 is the profile of the structure of the expression cabinet 5 of taking in illuminating lamp 6a among Fig. 1 and illuminance meter 7a.
Fig. 6 is the structure chart of the lamp state monitoring arrangement of other embodiments of the invention.
Fig. 7 is the structure chart of the lamp state detector 5a ' among Fig. 6.
Fig. 8 is that expression is by the electric current of illuminating lamp and the curve chart of the relation of the cumulative time of lighting a lamp.
Fig. 9 is expression rated current the break curve chart of relation of core probability of time and filament of lighting a lamp.
Figure 10 is the figure of the demonstration example on the display floater 91 of the lamp state display 9 in the presentation graphs 6.
Figure 11 is the profile of the structure of the expression cabinet 51 of taking in illuminating lamp 6a among Fig. 6 and illuminance meter 7a.
Figure 12 is with near the figure shown in the amplification illuminance meter 7a among Figure 11.
Figure 13 is the figure of inside that sees the cabinet 51 of Figure 11 from top.
The optimised form that carries out an invention
Below, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
(embodiment 1)
Fig. 1 represents the lamp state monitoring arrangement of the embodiment that the present invention is splendid.The lamp state monitoring arrangement of present embodiment is the monitoring arrangement that is used at the state of a plurality of Halogen lamp LEDs that runway that airport monitoring is arranged on aircraft etc. is located (below, be called illuminating lamp).
In Fig. 1, constant-current source 1 is supplied with alternating current by electric wire 2 and transformer 3a～3n to a plurality of communication controler 4a～4n.Communication controler 4a～4n uses the part of the alternating current the supplied with power source as self, simultaneously with remaining alternating current to each lamp state detector 5a that is connected～5n output.
Below, lamp state detector 5a is described, other lamp state detector, structure is all identical, move also identical, so, omit its explanation.Fig. 2 represents the structure of lamp state detector 5a.Among lamp state detector 5a, import the input terminal a of power supply switching part 501 from the alternating current of communication controler 4a output, export to illuminating lamp 6a from the lead-out terminal c of power supply switching part 501.The alternating current that illuminating lamp 6a utilize to supply with and luminous.In addition, in lamp state detector 5a, supply with storage battery 502 from the part of the alternating current of communication controler 4a output, to storage battery 502 chargings.
In lamp state detector 5a, the effective value that galvanometer 503 is measured by the alternating current of illuminating lamp 6a, and the current effective value I that measures is reduced judging part 508 to resistance calculations portion 505, deterioration judging part 506 and illumination export.In addition, potentiometer 504 is measured the effective value that is added to the alternating voltage on the illuminating lamp 6a, and the voltage effective value V that measures is exported to resistance calculations portion 505.Resistance calculations portion 505 is according to the current effective value I of input and the resistance value R of voltage effective value V compute illumination lamp 6a.Can utilize (formula 1) calculated resistance value R.
R=V/I ... (formula 1)
The resistance value R that resistance calculations portion 505 will utilize (formula 1) to calculate exports to deterioration judging part 506.Like this, utilize galvanometer 503, potentiometer 504 and resistance calculations portion 505 just can measure the resistance value of illuminating lamp 6a, so, also they can be lumped together and be called resistance measurer.
Deterioration judging part 506 is in order to judge the replacing period of illuminating lamp before the disconnected core of filament takes place, the deterioration state of judging the filament of illuminating lamp 6a according to the reference current value I0 and the reference resistor value R0 of current effective value I and resistance value R and 510 outputs from the fiducial value configuration part.Reference resistor value R0 is that the electric current of reference current value I0 flows through the not resistance value of the illuminating lamp 6a during the illuminating lamp 6a of the state of deterioration of filament, introduces about the reference current value I0 of fiducial value configuration part 510 and the establishing method back of reference resistor value R0.Deterioration judging part 506 respectively is worth substitution (formula 2) with current effective value I, resistance value R, reference current value I0 and reference resistor value R0's, confirms whether (formula 2) sets up the deterioration judging that is used as filament.
(formula 2)
In (formula 2), the left side is the formula of the ratio (below, be called resistance ratios) of resistance value when calculating the electric current that resistance value R is scaled reference current value I0 and flowing through illuminating lamp 6a and reference resistor value R0, and the α 1 on the right is the deterioration judge index.In addition, κ 1 is the constant of expression illuminating lamp resistance to the interdependent characteristic of illuminating lamp electric current, under the situation of Halogen lamp LED, is about 0.46, so, in the present embodiment, also get κ 1=0.46.Below, the establishing method of deterioration judge index α 1 is described.Fig. 3 is the curve chart of relation of the light a lamp cumulative time and the resistance ratios of expression illuminating lamp.Shown in Figure 3 is to reach about 910[hr in the cumulative time of lighting a lamp] the situation of the disconnected core of filament of moment illuminating lamp.As shown in the figure, the cumulative time of lighting a lamp is at about 600[hr] before, resistance ratios is essentially 1.0, after, resistance ratios increases gradually, till the disconnected core of filament.Like this, the reason that resistance ratios increases gradually is, the resistance of the filament of illuminating lamp has the character that the deterioration with filament increases gradually.And, reach about 910[hr in the cumulative time of lighting a lamp] the moment (resistance ratios becomes for 1.1 the moment), disconnected core takes place in the filament of illuminating lamp, resistance ratios becomes infinity.This is because core makes resistance become infinitely-great cause because the filament of illuminating lamp breaks.Like this, the resistance ratios of illuminating lamp is beginning to about 600[hr from lighting a lamp] during, remain 1.0 when promptly the filament of illuminating lamp is for the state of " perfecting ", then, be increased to 1.1 gradually along with the carrying out of the deterioration of filament, taking place to become infinity after " disconnected core ".In the present embodiment, be replaced by the illuminating lamp of core before the disconnected core of the filament of the illuminating lamp that has begun for deterioration, deterioration judge index α 1 be set at the value promptly 1.02 of resistance ratios of the deterioration starting stage of filament at filament.
Deterioration judging part 506 surpass on the left side of (formula 2) as deterioration judge index α 1 promptly (formula 2) set up in 1.02 o'clock the time, the filament of just judging illuminating lamp 6a is deterioration.That is, the resistance value the when electric current that resistance value R is scaled reference current value I0 flows through illuminating lamp 6a is bigger 2% o'clock than reference resistor value R0, and the filament of just judging illuminating lamp 6a is deterioration.Like this, in the present embodiment, the fact that the resistance value of filament rises when utilizing the filament deterioration of illuminating lamp is carried out the deterioration of the filament of illuminating lamp and is judged.In the present embodiment, be that the deterioration judge index is taken as α 1=1.02, but the value of deterioration judge index α 1 is not limited to 1.02, also can by test wait obtain and set for the replacing of before the disconnected core of the filament of illuminating lamp, carrying out illuminating lamp the value of suitable resistance value ratio.
Deterioration judging part 506 is exported " 1 " when (formula 2) set up, export " 0 " when being false in (formula 2).That is, output " 1 " when the filament of illuminating lamp 6a deterioration is in the not output " 0 " during deterioration of the filament of illuminating lamp 6a.The result who utilizes the deterioration of the filament that this deterioration judging part 506 carries out to judge imports and changes judging part 509.
In (formula 3), β 1 is that illumination reduces judge index, in the present embodiment, is set at 0.5.In addition, κ 2 is the illumination of expression illuminating lamp constants to the interdependent characteristic of illuminating lamp electric current, when the situation of Halogen lamp LED, is about 5.90, so, in the present embodiment, also be taken as κ 2=5.90.
The left side of (formula 3) is the ratio (below, be called the illumination ratio) of illumination when calculating the electric current that illumination E is scaled reference current value I0 and flowing through illuminating lamp 6a and benchmark illumination E0.In the present embodiment, the illumination ratio is lower than at 0.5 o'clock, when promptly (formula 3) set up, just judges that the illumination of illuminating lamp 6a has been reduced to the degree that needs to change illuminating lamp.That is, the illumination the when electric current that illumination E is scaled reference current value I0 flows through illuminating lamp 6a just judges that less than the half of benchmark illumination E0 the illumination of illuminating lamp 6a has been reduced to the degree that needs to change illuminating lamp.In the present embodiment, come to this and carry out judgement that illumination reduces.In the present embodiment, be illumination to be reduced judge index be taken as β 1=0.5, still, the value that illumination reduces judge index β 1 is not limited to 0.5, also can wait by test and obtain and set the value that judgement need be changed the suitable illumination ratio of illuminating lamp.
Illumination reduces judging part 508 just output " 1 " when (formula 3) set up, in (formula 3) just output " 0 " when being false.That is output " 1 " when the illumination of illuminating lamp 6a has been reduced to the degree that needs the replacing illuminating lamp, output " 0 " when the illumination of illuminating lamp 6a is not reduced to the degree that needs the replacing illuminating lamp.The illumination of utilizing this illumination to reduce the illuminating lamp that judging part 508 carries out reduces the result who judges and imports and change judging part 509.
In changing judging part 509, when deterioration judging part 506 and illumination reduce at least one side output " 1 " of judging part 508, just judging needs to change illuminating lamp 6a, and exports " 1 ".Change judging part 509 when reducing judging part 508 from deterioration judging part 506 and illumination and all export " 0 ", just judging does not need to change illuminating lamp 6a, and exports " 0 ".Change the output of judging part 509, export to communication controler 4a as the output signal of lamp state detector 5a.Like this, owing to be to utilize deterioration judging part 506, illumination to reduce judging part 508 and change replacing period that judging part 509 is judged illuminating lamp 6a, so, also they can be collectively referred to as judging part.
As mentioned above, judge whether to need to change illuminating lamp 6a by lamp state detector 5a, and this judged result is exported to communication controler 4a.Other lamp state detector equally also judges whether to need to change illuminating lamp, and its judged result is exported to each communication controler.
Communication controler 4a～4n just will represent being added on the alternating current that flows through electric wire 2 at the signal of the identification number of illuminating lamp setting in advance of correspondence by transformer from the lamp state detector of correspondence output " 1 " time.For example, in lamp state detector 5a and lamp state detector 5n, judge when needing to change illuminating lamp, communication controler 4a just will represent that the signal of the identification number of illuminating lamp 6a is added on the alternating current, and communication controler 4n just will represent that the signal of the identification number of illuminating lamp 6n is added on the alternating current.The signal that is added on the alternating current is received by signal receiver 8 by transformer 3z.Signal receiver 8 is understood the identification number that is judged to be the illuminating lamp that needs replacing from the signal that is received, and the identification number of understanding is exported to lamp state display 9.Like this signal being added to the electric wire transmission technology of the information of transmitting on the alternating current that flows through electric wire, is the technology of knowing already, so, omit detailed explanation about the transmitting-receiving of signal.About the electric wire transmission technology, for example open in Japanese kokai publication hei 10-92588 communique etc.Like this, in the present embodiment, be to use the electric wire that is used for to the illuminating lamp supplying electric current to transmit to be judged to be the information (identification number) of the illuminating lamp that needs change, so, configuration information transmits the holding wire of usefulness in addition, thereby can realize the Stateful Inspection of illuminating lamp at low cost.
Only expressed 1 system that a plurality of illuminating lamp 6a～6n is connected with 1 constant-current source 1 and constitutes among Fig. 1, still, in fact, in the airport, be provided with a plurality of such systems, in each system, equally at the state that detects illuminating lamp.And the lamp state that is detected all focuses on the lamp state display 9.
Below, the establishing method of each fiducial value of carrying out when using the replacing operation of lamp state detector 5a explanation illuminating lamp of Fig. 2.
The illuminating lamp that the operating personnel changes the needs that show on above-mentioned display floater 91 carries out the replacing of illuminating lamp, and the operating personnel just presses reset switch shown in Figure 2 511 when the replacing operation of finishing illuminating lamp.When reset switch 511 was pressed, switching signal was just imported power supply switching part 501, and the input terminal of power supply switching part 501 just switches to b from a.Therefore, supply with illuminating lamp 6a from the electric current of storage battery 502 outputs with regard to replacing the alternating current of supplying with by communication controler 4a.As previously mentioned, storage battery 502 always remains on the charged state of supplying with by communication controler 4a of alternating current that utilizes.In addition, when being connected with illuminating lamp 6a, the output current of storage battery 502 is conditioned, so that become predefined value (reference current value I0) from the value of the electric current of storage battery 502 output.Reference current value I0 can be set at value arbitrarily, is enough values as long as illuminating lamp is lit a lamp.
Beginning from storage battery 502 behind illuminating lamp 6a supplying electric current process certain hour (after being 1 minute in the present embodiment), in fiducial value configuration part 510, just be set at reference resistor value R0 and benchmark illumination E0 respectively by the resistance value R of resistance calculations portion 506 calculating with by the illumination E that illuminance meter 507 is measured.Why carrying out the setting of fiducial value from storage battery 502 beginnings after illuminating lamp 6a supplying electric current was through 1 minute, is because the brightness stability of illuminating lamp 6a needs about about 1 minute time.When the setting of fiducial value had been finished in fiducial value configuration part 510, just to power supply switching part 501 output switching signals, the power supply switching part 501 that receives switching signal just switched to a with input terminal from b.
As mentioned above, when carrying out the replacing of illuminating lamp, in fiducial value configuration part 510, set reference resistor value R0 and benchmark illumination E0.
Fig. 5 is the profile of structure of the cabinet of expression transformer 3a, the communication controler 4a, lamp state detector 5a, illuminating lamp 6a and the photoelectric cell 7a that take in present embodiment.As shown in Figure 5, transformer 3a, communication controler 4a, lamp state detector 5a, illuminating lamp 6a and photoelectric cell 7a are accommodated in the underground cabinet 51 of burying runway etc. underground.In cabinet 51, the light that illuminating lamp 6a sends out is reflexed on the optical light filter 53 by speculum 52.53 of optical light filters make the light transmission of the wavelength (color) that is predetermined in the light that receives, and the light of other wavelength (color) is reflected.The light (below, be called through light) that sees through optical light filter 53 is transmitted into outside the cabinet 51 by tempered glass 54.
On the other hand, photoelectric cell 7a is configured between illuminating lamp 6a and the optical light filter 53, will be focused on by the light of optical light filter 53 reflection (below, be called reverberation) by condenser lens 55, receives light expeditiously.The number of photons of the light (reverberation) that is received according to photoelectric cell 7a by the illuminance meter 507 of lamp state detector 5a is obtained the illumination through light, because catoptrical number of photons has certain relation with the illumination that sees through light, so, can correctly obtain illumination through light.Like this, in the present embodiment, ask the reasons are as follows through the illumination of light according to catoptrical number of photons:
If when thinking directly to measure the number of photons that sees through light, photoelectric cell must be configured in through the seeing through on the light path of light of optical light filter 53, will interdict like this through light.Therefore, in the present embodiment, just decision is asked the illumination that sees through according to the catoptrical number of photons that is not transmitted into outside the cabinet 51.Like this, just can not interdict, and can measure illumination with simple structure through light through light.
More than, the configurations in cabinet 51 such as illuminating lamp 6a and photoelectric cell 7a have been described, other illuminating lamp and photoelectric cell etc. also are same configurations, so explanation is omitted.
As mentioned above, according to present embodiment, in lamp state detector 5a～5n, judge and illumination reduction judgement according to the resistance value of the illuminating lamp 6a～6n that measures and the deterioration that illumination is carried out filament, be judged to be to change illuminating lamp the time at least one side, just be judged to be and change this illuminating lamp, so, for because the melanism of illuminating lamp is the illumination of former resulting illuminating lamp reduces and because the deterioration of filament causes the illumination that disconnected core is former resulting illuminating lamp reduces, which kind of, can be reduced in the illumination of illuminating lamp less than the replacing period of judging illuminating lamp before the needed illumination no matter be situation.Therefore, can carry out the guiding of aircraft reliably.
In the present embodiment, the power supply as being used for to illuminating lamp 6a～6n supply capability is to use constant-current source, still, also can use constant pressure source.
(embodiment 2)
Below, the lamp state monitoring arrangement of other embodiments of the invention is described.The lamp state monitoring arrangement of present embodiment and the foregoing description 1 are mainly different aspect following 5.
1. the information of utilizing the signal industrial siding to be transmitted in to detect in the lamp state detector about lamp state.
2. deterioration is judged the magnitude of voltage that uses on the filament that is added to illuminating lamp.
3. calculate the life-span of illuminating lamp according to the rated current time of lighting a lamp.
4. make the photoelectric cell of the number of photons of the light that mensuration sends out from illuminating lamp become movable.
5. display lighting lamp state quantitatively on the display floater of lamp state display.
Below, the place different with embodiment 1 is described.
Fig. 6 represents the structure of the lamp state monitoring arrangement of present embodiment, and Fig. 7 represents the structure of the lamp state detector 5a ' of present embodiment.Other lamp state detector also is same structure, and its action is also identical, so explanation is omitted.In Fig. 7, the alternating current that flows through electric wire 2 is by transformer 3a and lamp state detector 5a ' supply illuminating lamp 6a.In lamp state detector 5a ', the effective value that galvanometer 503 is measured the alternating current that flows through illuminating lamp 6a is current effective value I, and with the current effective value I that measures to deterioration judging part 506 ', illumination reduces judging part 508 ' and life-span projection portion 512.In addition, it is voltage effective value V that potentiometer 504 is measured the effective value that is added to the alternating voltage on the illuminating lamp 6a, and with the voltage effective value V that measures to deterioration judging part 506 ' output.In addition, rated value storage part 513 is stored load current value In, load voltage value Vn and the specified illumination En that sets as the specification of illuminating lamp 6a in advance, wherein, load current value In and load voltage value Vn to deterioration judging part 506 ' output, are reduced judging part 508 ' output with load current value In and specified illumination En to illumination.
Deterioration judging part 506 ', confirm whether (formula 4) is set up with current effective value I, voltage effective value V, load current value In and the load voltage value Vn substitution (formula 4) of input.
(formula 4)
In (formula 4), α 2 is deterioration judge index, in the present embodiment, is set at 1.08.In addition, κ 3 is expression illuminating lamp voltage constants to the interdependent characteristic of illuminating lamp electric current, when the situation of Halogen lamp LED, is about 1.85, so, in the present embodiment, also be taken as κ 3=1.85.
The left side of (formula 4) is the ratio (below, be called voltage ratio) of magnitude of voltage when the electric current that voltage effective value V is scaled load current value In is flow through illuminating lamp 6a and load voltage value Vn.In the present embodiment, when voltage ratio surpassed at 1.08 o'clock promptly (formula 4) set up, the filament of just judging illuminating lamp 6a is deterioration.That is, the magnitude of voltage the when electric current that voltage effective value V is scaled load current value In flows through illuminating lamp 6a is bigger 8% o'clock than load voltage value Vn, and the filament of just judging illuminating lamp 6a is deterioration.Here it is utilizes magnitude of voltage to follow the deterioration owing to illuminating lamp to cause the deterioration judgement that resistance value rises.In the present embodiment, get deterioration judge index α 2=1.08, still, the value of deterioration judge index α 2 is not limited to 1.08, can wait the disconnected core of the filament of obtaining and be set in illuminating lamp to change the value of the suitable voltage ratio of illuminating lamp before by test.
Deterioration judging part 506 ' just output " 1 " when (formula 4) set up is in (formula 4) just output " 0 " when being false.That is, output " 1 " when the filament of illuminating lamp 6a deterioration is in the not output " 0 " during deterioration of the filament of illuminating lamp 6a.By the deterioration judged result of this deterioration judging part 506 ' voltage ratio of obtaining and the value of deterioration judge index α 2 and filament as the output of lamp state detector 5a ' and incoming modem 10a.
Illumination reduction judging part 508 ' except input current effective value I, load current value In and specified illumination En, also import the illumination E that measures by illuminance meter 507.Illumination reduce judging part 508 ' with current effective value I, illumination E, load current value In and the specified illumination En of input respectively be worth substitution (formula 5), confirm whether (formula 5) is set up.
(formula 5)
In (formula 5), β 1 is that illumination reduces judge index, and is the same with embodiment 1 in the present embodiment, is set at 0.5.In addition, κ 2 is the constant of expression illuminating lamp illumination to the interdependent characteristic of illuminating lamp electric current, and is also the same with embodiment 1 in the present embodiment, is taken as κ 2=5.90.
The left side of (formula 5) is the ratio (below, be called the illumination ratio) of illumination when the electric current that illumination E is scaled load current value In is flow through illuminating lamp 6a and specified illumination En.In the present embodiment, the illumination ratio is lower than at 0.5 o'clock, when promptly (formula 5) set up, just judges that the illumination of illuminating lamp 6a has been reduced to the degree that needs to change illuminating lamp.That is, the illumination the when electric current that illumination E is scaled load current value In flows through illuminating lamp 6a just judges that less than the half of specified illumination En the illumination of illuminating lamp 6a has been reduced to the degree that needs to change illuminating lamp.In the present embodiment, come to this and carry out that illumination reduce to judge.In the present embodiment, get illumination and reduce judge index β 1=0.5, still, the value that illumination reduces judge index β 1 is not limited to 0.5, can wait by test and obtain and set the value that judgement need be changed the suitable illumination ratio of illuminating lamp.
Illumination reduces judging part 508 ' just output " 1 " when (formula 5) set up, in (formula 5) just output " 0 " when being false.That is, when being reduced to the degree that needs the replacing illuminating lamp, the illumination of illuminating lamp 6a, when the illumination of illuminating lamp 6a is reduced to the degree that need change illuminating lamp, just do not export " 0 " with regard to output " 1 ".Reduce illumination ratio of judging part 508 ' obtain and value that illumination reduces judge index β 1 and illumination by this illumination and reduce the result that judges as the output of lamp state detector 5a ' and incoming modem 10a.
In lamp state detector 5a ', when carrying out the replacing of illuminating lamp 6a, press reset switch 511 by the operating personnel.When reset switch 511 was pressed, reset signal was just imported life-span projection portion 512.Life-span projection portion 512 begins to carry out the calculating of the cumulative time of lighting a lamp of illuminating lamp 6a from the moment of input reset signal.Below, its computation sequence is described.
Life-span projection portion 512 just stores the current effective value I (for example 4[A]) in this moment during reset signal in input, begins the counting of the time of carrying out simultaneously.And, the current effective value I (4[A]) of storage and new current effective value I from galvanometer 503 outputs are compared, from the current effective value I of galvanometer 503 outputs from 4[A] continue the counting of time before beginning to change.If from the current effective value I of galvanometer 503 output from 4[A] be changed to for example 5[A] time, just store the time t that counted till this moment (for example 100[hr]) into, then, count current effective value I from 5[A] time of beginning to change.Like this, the time of illuminating lamp 6a is flow through with regard to the electric current of having obtained current effective value I and this value in life-span projection portion 512, and stores accordingly.
Time tn (rated current is lit a lamp the time) when in addition, life-span projection portion 512 is scaled time t load current value In and flows through illuminating lamp 6a according to the current effective value I of storage accordingly and time t.Fig. 8 is the effective value of the expression electric current that flows through illuminating lamp and the curve chart of relation of the cumulative time of lighting a lamp.Life-span projection portion 512 carries out the conversion of time according to the curve of Fig. 8.For example, make 4[A] electric current flow through 100[hr] time the time, when being scaled time tn when flowing through rated current (in the present embodiment, be 6.6[A]) according to the curve 4. among Fig. 8, then tn=0.2[mhr].Time tn that life-span projection portion 512 will obtain like this is that rated current is lit a lamp the time and accumulated as the time of flowing through load current value In.
And life-span projection portion 512 obtains the disconnected core probability of filament according to the rated current of the accumulation time tn that lights a lamp.Fig. 9 is expression rated current the break curve chart of relation of core probability of time tn and filament of lighting a lamp.Life-span projection portion 512 obtains the disconnected core probability of filament according to the curve of Fig. 9 by the rated current time tn that lights a lamp, and judges whether the disconnected core probability of the filament of obtaining has surpassed 80 (%) as setting threshold.When the result who judges surpassed 80 (%), the probability that disconnected core then takes place was just high, and promptly near its life-span, so just output " 1 ", when not surpassing 80 (%), the probability that disconnected core takes place is just low, so just output " 0 ".The result that judges of disconnected core probability of the filament of being obtained by life-span projection portion 512 and setting threshold and life-span is as the output of lamp state detector 5a ' and incoming modem 10a.
In Fig. 6, modulator-demodulator 10a～10n will transmit to modulator-demodulator 10z by signal industrial siding 11 with the identification number of corresponding illuminating lamp together from the lamp state detector 5a '-information of 5n ' output.The information of each illuminating lamp that modulator-demodulator 10z will send from modulator-demodulator 10a～10n and the identification number of each illuminating lamp are accordingly to 9 outputs of lamp state display.Like this, in the present embodiment, owing to utilize the information of signal industrial siding 11 transmission lamp states, so, compare with the situation of using the electric wire transmission, can increase the amount of information that can transmit.
Figure 10 is the figure of the demonstration example on the display floater 91 of expression lamp state display 9.The places different with embodiment 1 are, show to be judged as near the illuminating lamp in its life-span and to be provided with lamp state parameter display part 93.
The same with embodiment 1, on display floater 91, illuminating lamp is divided into each system and shows with the circle symbol.In addition, with to change illuminating lamp, do not change illuminating lamp and near the corresponding circle symbol of the illuminating lamp in its life-span (below, be called) near the life-span illuminating lamp respectively with different color demonstrations.For example, will change illuminating lamp and show, show, will show with yellow circle symbol near the life-span illuminating lamp with not changing to hit with blue circle symbol with red circle symbol.In addition, each which type of illuminating lamp of circle symbolic representation is presented in the display field 93.
Lamp state parameter display field 94 is arranged on the display floater 91, in lamp state parameter display field 94, the illuminating lamp number that is showing system name and this system, the supervision personnel can utilize the button 95,96 that is provided with accordingly respectively to change this system name and illuminating lamp number.In addition, in lamp state parameter display field 94, also showing the disconnected core probability of voltage ratio (left side of (formula 4)), illumination ratio (left side of (formula 5)) and filament of the illuminating lamp that becomes its object with each setting threshold.So-called setting threshold to voltage ratio is exactly deterioration judge index α 2, and so-called setting threshold to the illumination ratio is exactly that illumination reduces judge index β 1.By showing like this, the supervision personnel for whether near replacing period of illuminating lamp and the illuminating lamp that needs to change be just can coming into plain view of need changing of reason why.On display floater 91, for changing illuminating lamp, also the reason that needs can be changed shows with " illuminating lamp melanism " or " filament deterioration " such expression.
Figure 11 is the profile of structure of the cabinet of the expression transformer 3a, lamp state detector 5a ', illuminating lamp 6a, photoelectric cell 7a and the modulator-demodulator 10a that take in present embodiment.As previously mentioned, if photoelectric cell is configured on the light path through optical light filter 53, to interdict light, so, in embodiment 1, be that photoelectric cell is configured between illuminating lamp 6a and the optical light filter 63, still, in the present embodiment, be that movable photoelectric cell 7a is arranged on the light path through light.Below, movable photoelectric cell 7a is described.
Figure 12 is near the enlarged drawing of (the regional A among Figure 11) the movable photoelectric cell 7a.In Figure 12, the photoelectric cell 7a that detects number of photons is arranged on the rotor 121 of supersonic motor.In addition, the rotor 121 of supersonic motor is arranged on the stator 122 of supersonic motor.In addition, the detected value of photoelectric cell 7a is transferred to contact head 123, input lamp state detector 5a '.About the action of supersonic motor, use Figure 13 to describe in detail.Figure 13 is the figure that sees the inside of the cabinet 51 shown in Figure 11 from top.Here, photoelectric cell 7a is arranged on supersonic motor rotor 121 above.Among the figure, the 131st, the position of the photoelectric cell 7a when measuring standby, the 132nd, the position of the photoelectric cell 7a when measuring, when photoelectric cell 7a is arranged on 132, just be on the light path through light, and contact with contact head 123, so, just import lamp state detector 5a ' with the corresponding signal of telecommunication of number of photons of the light of illuminating lamp 6a.On the other hand, when photoelectric cell 7a was arranged on 131, photoelectric cell 7a had just left from the light path that sees through light, and does not contact with contact head 123, so the signal of telecommunication is not just imported lamp state detector 5a '.Like this, make photoelectric cell 7a at the movable photoelectric cell 7a that is seeing through this structure that moves between the position 131 outer, position 132 on the light path of light by use, just can be when not measuring number of photons just photoelectric cell 7a only is configured to photoelectric cell 7a when the mensuration number of photons on the light path through light from leaving through the light path of light with seeing through the light path of light.As long as carry out the mensuration of this number of photons at short notice, just the blocking that sees through light can be suppressed at short notice, thereby can carry out the mensuration of illumination and can not bring influence to the guiding of aircraft.In addition, owing to being directly measures the light that sees through that sees through optical light filter 53, so, compare with embodiment 1, measure the precision height.Measure the moment of number of photons, show in the time of can fixing on current effective value I and change or by the personnel of supervision finger prosthesis and measure.
Supersonic motor is well-known technology, so, omit for the detailed description of its structure etc.In addition, in the present embodiment, the situation of utilizing supersonic motor has been described, still, also can have utilized more generally electromagnetic machine etc.
Present embodiment according to above explanation, be that deterioration that magnitude of voltage according to illuminating lamp 6a carries out filament is judged and the reduction judgement of illumination, so, no matter be because the melanism of illuminating lamp is the illumination of former resulting illuminating lamp reduces or because the disconnected core of filament is the illumination of former resulting illuminating lamp reduces, can be reduced in the illumination of illuminating lamp less than the replacing period of judging illuminating lamp before the needed illumination.Therefore, can carry out the guiding of aircraft reliably.
In addition, in the present embodiment, be the probability that the disconnected core of filament is provided to the supervision personnel, so the supervision personnel can infer how long disconnected core will take place illuminating lamp afterwards, thereby can make the plan that illuminating lamp is changed at an easy rate.
In the present embodiment, the power supply as being used for to illuminating lamp 6a～6n supply capability is to use constant-current source, still, also can use constant pressure source.But, at this moment, be the deterioration of judging the filament of illuminating lamp according to the electric current that flows through illuminating lamp.
In addition, in the present embodiment, 1. above-mentioned～be different aspect 5. with embodiment 1, but, for embodiment 1, even do not change 1.～5. whole, for example utilize change 2. and 4. the aspect structure or utilize and only change the 5. structure of aspect, also can constitute the lamp state monitoring arrangement, it is also conceivable that various combining structures.
In the embodiment 1 and embodiment 2 of above-mentioned explanation, the example that uses Halogen lamp LED as illuminating lamp has been described, still, so long as the same illumination with Halogen lamp LED just can be used the present invention with the illuminating lamp that the deterioration of melanism or filament reduces.
In addition, in embodiment 1 and embodiment 2, the guiding that is used for aircraft has been described and has been configured in the situation of Stateful Inspection of the illuminating lamp on airport, but, be not limited to be configured in the illuminating lamp on airport,, also can use the present invention for being configured in the illuminating lamp that highway etc. is located.
In addition, in embodiment 1 and embodiment 2, be provided with the lamp state detector that the deterioration of carrying out filament is judged and the illumination reduction is judged respectively, still, also the lamp state detector can be unified for a plurality of illuminating lamps.That is, each illuminating lamp only is provided with analyzers such as galvanometer, potentiometer and photoelectric cell, and after focusing on the measured value of each analyzer in 1 computer, in this computer, judges the state of each illuminating lamp.
The method to set up of the lamp state monitoring arrangement of above explanation is described at last.When the lamp state monitoring arrangement is set, also can consider system is all reset, still, when being provided with illuminating lamp, can add other structure.For example, in the airport, be provided with by a plurality of illuminating lamps and when being used for airfield lighting lamp system that the electric wire to the illuminating lamp supply capability constitutes, when constituting the lamp state monitoring arrangement of embodiment 1, as long as reset the transformation of communication controler 4a～4n, lamp state detector 5a～5n, photoelectric cell 7a～7n, signal receiver 8 and lamp state display 9.On the other hand, when constituting the lamp state monitoring arrangement of embodiment 2, as long as reset the transformation of lamp state detector 5a～5n ', photoelectric cell 7a～7n, lamp state display 9, modulator-demodulator 10a～10n, 10z and signal industrial siding 11.
Industrial utilizability
The present invention goes for being arranged on a plurality of illuminating lamps that airport or highway etc. locate State monitors, by using the present invention, is reduced to less than needed in the illumination of illuminating lamp Just the illuminating lamp located such as replaceable airport or highway before the illumination.
Claims (13)
1. lamp state detector is characterized in that: the illuminance meter with illumination of measuring the light that illuminating lamp sends out; Measure the resistance measurer of the resistance value of above-mentioned illuminating lamp; With judge whether that according to the illumination of measuring by above-mentioned illuminance meter with by the resistance value that above-mentioned resistance measurer is measured needs change the judging part of illuminating lamp.
2. by the described lamp state detector of claim 1, it is characterized in that: above-mentioned judging part has according to the above-mentioned illumination of measuring judges whether the illumination of the light that above-mentioned illuminating lamp is sent out has been reduced to the illumination reduction judging part that needs are changed the illumination of illuminating lamp; With judge according to the above-mentioned resistance value of measuring whether the filament of above-mentioned illuminating lamp has corrupted to the deterioration judging part that needs are changed the degree of illuminating lamp; When judging that by above-mentioned illumination reduction judging part the illumination of the light that above-mentioned illuminating lamp is sent out has been reduced to the illumination that needs the replacing illuminating lamp or by above-mentioned deterioration judging part, judging that the filament of above-mentioned illuminating lamp has corrupted to the degree that needs the replacing illuminating lamp, just be judged to be and change illuminating lamp.
3. lamp state detector is characterized in that: the illuminance meter with illumination of measuring the light that illuminating lamp sends out; Mensuration is added to the voltage determination device of the value of the voltage on the above-mentioned illuminating lamp; With judge whether that according to the illumination of measuring by above-mentioned illuminance meter with by the magnitude of voltage that above-mentioned voltage determination device is measured needs change the judging part of illuminating lamp.
4. by the described lamp state detector of claim 3, it is characterized in that: above-mentioned judging part has according to the above-mentioned illumination of measuring judges whether the illumination of the light that above-mentioned illuminating lamp is sent out has been reduced to the illumination reduction judging part that needs are changed the illumination of illuminating lamp; With judge according to the above-mentioned magnitude of voltage of measuring whether the filament of above-mentioned illuminating lamp has corrupted to the deterioration judging part that needs are changed the degree of illuminating lamp; When judging that by above-mentioned illumination reduction judging part the illumination of the light that above-mentioned illuminating lamp is sent out has been reduced to the illumination that needs the replacing illuminating lamp or by above-mentioned deterioration judging part, judging that the filament of above-mentioned illuminating lamp has corrupted to the degree that needs the replacing illuminating lamp, just be judged to be and change illuminating lamp.
5. the lamp state detector is characterized in that: have luminous illuminating lamp; Only see through the light of the wavelength that is predetermined in the light that above-mentioned illuminating lamp sends out and reflect the optical light filter of the light of other wavelength; Thereby be arranged on the illuminance meter that light between above-mentioned illuminating lamp and the above-mentioned optical light filter and that reception is reflected by above-mentioned optical light filter is obtained the illumination of the light that sees through above-mentioned optical light filter; Measure the resistance measurer of the resistance value of above-mentioned illuminating lamp; With judge whether that according to the illumination of measuring by above-mentioned illuminance meter with by the resistance value that above-mentioned resistance measurer is measured needs change the judging part of above-mentioned illuminating lamp.
6. the lamp state detector is characterized in that: have luminous illuminating lamp; Only see through the light of the wavelength that is predetermined in the light that above-mentioned illuminating lamp sends out and reflect the optical light filter of the light of other wavelength; Measure the illuminance meter of the illumination of the light that is received; The illuminance meter moving part that above-mentioned illuminance meter is moved between the 1st position on the light path of the light that is seeing through above-mentioned optical light filter and the 2nd position outside above-mentioned light path; Measure the resistance measurer of the resistance value of above-mentioned illuminating lamp; The illumination of measuring when being positioned at above-mentioned the 1st position according to above-mentioned illuminance meter and judge whether that by the resistance value that above-mentioned resistance measurer is measured needs change the judging part of above-mentioned illuminating lamp.
7. the lamp state monitoring arrangement is characterized in that: have
Comprise the illumination of measuring the light that illuminating lamp sends out illuminance meter, measure above-mentioned illuminating lamp resistance value resistance measurer and judge whether that according to the illumination of measuring by above-mentioned illuminance meter and by the resistance value that above-mentioned resistance measurer is measured needs change a plurality of lamp state detectors of the judging part of above-mentioned illuminating lamp;
To each setting of a plurality of above-mentioned lamp state detectors, judge when needing to change illuminating lamp that at above-mentioned judging part just output is to a plurality of communication controlers of the predefined identification number of this illuminating lamp;
The display that shows the illuminating lamp that is judged to be the needs replacing according to identification number from a plurality of above-mentioned communication controler outputs.
8. the lamp state monitoring arrangement is characterized in that: have a plurality of illuminating lamps that are arranged on the airport; Each setting and a plurality of lamp state detectors that judge whether to need to change this illuminating lamp to a plurality of above-mentioned illuminating lamps; To each setting of a plurality of above-mentioned lamp state detectors and judge when needing to change illuminating lamp that at above-mentioned lamp state detector just output is to a plurality of communication controlers of the predefined identification number of this illuminating lamp; With the display that shows the illuminating lamp that is judged to be the needs replacing according to identification number from a plurality of above-mentioned communication controler outputs.
9. display unit is characterized in that: showing needs the illuminating lamp changed in a plurality of illuminating lamps that are arranged on the airport, simultaneously as at least one side in the filament of the reason display lighting lamp that must change this illuminating lamp melanism and illuminating lamp deterioration.
10. the replacing method of illuminating lamp, it is characterized in that: the illumination of the light of sending out according to illuminating lamp judges whether to change this illuminating lamp, resistance value according to above-mentioned illuminating lamp judges whether to change this illuminating lamp simultaneously, being judged to be to change illuminating lamp the time, just change above-mentioned illuminating lamp according to the judgement of above-mentioned illumination with according at least one side in the judgement of above-mentioned resistance value.
11. the remodeling method of airfield lighting lamp system, it is characterized in that: for the illuminance meter that has a plurality of illuminating lamps of being arranged on the airport and transmit the airfield lighting lamp system of the electric wire of electric power to above-mentioned illuminating lamp, be provided with the illumination of measuring the light that above-mentioned illuminating lamp sends out from power supply, measure above-mentioned illuminating lamp resistance value resistance measurer and judge whether that according to the illumination of measuring by above-mentioned illuminance meter with by the resistance value that above-mentioned resistance measurer is measured needs change the operation of the judging part of above-mentioned illuminating lamp.
12. the remodeling method of airfield lighting lamp system, it is characterized in that: for having cabinet that is arranged on a plurality of of airport and takes in illuminating lamp respectively and the airfield lighting lamp system that transmits the electric wire of electric power from power supply to above-mentioned illuminating lamp, the cabinet of taking in following part is set and the operation that replaces the cabinet of taking in above-mentioned illuminating lamp, these parts are: illuminating lamp, measure the illuminance meter of the illumination of the light that above-mentioned illuminating lamp sends out, measure the resistance measurer of the resistance value of above-mentioned illuminating lamp, with judge whether that according to the illumination of measuring by above-mentioned illuminance meter with by the resistance value that above-mentioned resistance measurer is measured needs change the judging part of above-mentioned illuminating lamp.
13. the remodeling method by claim 11 and 12 the described airfield lighting lamp system of arbitrary claim is characterized in that: be provided for showing the display of above-mentioned judgment result and the operation of holding wire that above-mentioned judgment result is transmitted to aforementioned display device.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP1999/007110 WO2001045472A1 (en) | 1999-12-17 | 1999-12-17 | Lamp state detector and lamp state monitor using lamp state detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1335044A true CN1335044A (en) | 2002-02-06 |
Family
ID=14237612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99801247A Pending CN1335044A (en) | 1999-12-17 | 1999-12-17 | Lamp state detector and lamp state monitor using lamp state detector |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1276353A4 (en) |
| JP (1) | JP4032741B2 (en) |
| CN (1) | CN1335044A (en) |
| WO (1) | WO2001045472A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106482060A (en) * | 2015-05-20 | 2017-03-08 | 古德里奇照明系统有限责任公司 | Airplane external illuminating device |
| CN111443300A (en) * | 2020-03-25 | 2020-07-24 | 北京北方华创微电子装备有限公司 | Halogen lamp detection method, device and equipment |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4922838B2 (en) * | 2007-05-31 | 2012-04-25 | 日本オーチス・エレベータ株式会社 | Fluorescent lamp abnormality detection device |
| JP2011180997A (en) * | 2010-03-03 | 2011-09-15 | Nec Corp | Alarm and monitoring device of sluice gate, alarm and monitoring method of sluice gate, and program |
| KR101610660B1 (en) * | 2014-10-21 | 2016-04-08 | (주)디노솔루션 | Apparatus for measuring life time of halogen lamp |
| JP6620523B2 (en) * | 2015-11-10 | 2019-12-18 | コニカミノルタ株式会社 | Image forming apparatus |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS622497A (en) * | 1985-06-28 | 1987-01-08 | 株式会社日立製作所 | Lamp wick breakage position detector |
| JPS6462793A (en) * | 1987-09-02 | 1989-03-09 | Mitsubishi Electric Corp | Vending machine |
| JPH02239595A (en) * | 1989-03-14 | 1990-09-21 | Hitachi Ltd | Airport lighting device and individual power source for the device |
| JPH0462793A (en) * | 1990-06-29 | 1992-02-27 | Toshiba Corp | Failure detecting device in aeronautical ground light circuit |
| JPH04174997A (en) * | 1990-11-08 | 1992-06-23 | Toshiba Corp | Detecting device for breakage of light filament |
| JPH04290971A (en) * | 1991-03-19 | 1992-10-15 | Hitachi Ltd | Lamp filament burnout sensing device for landing strip illumination |
| JP3146017B2 (en) * | 1991-03-27 | 2001-03-12 | 株式会社東芝 | Light core break detector |
| JPH10308287A (en) * | 1997-05-09 | 1998-11-17 | Hitachi Ltd | Lighting control system |
-
1999
- 1999-12-17 EP EP99959886A patent/EP1276353A4/en not_active Withdrawn
- 1999-12-17 CN CN99801247A patent/CN1335044A/en active Pending
- 1999-12-17 WO PCT/JP1999/007110 patent/WO2001045472A1/en not_active Application Discontinuation
- 1999-12-17 JP JP2001546222A patent/JP4032741B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106482060A (en) * | 2015-05-20 | 2017-03-08 | 古德里奇照明系统有限责任公司 | Airplane external illuminating device |
| CN106482060B (en) * | 2015-05-20 | 2021-01-05 | 古德里奇照明系统有限责任公司 | Aircraft exterior lighting device |
| CN111443300A (en) * | 2020-03-25 | 2020-07-24 | 北京北方华创微电子装备有限公司 | Halogen lamp detection method, device and equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2001045472A1 (en) | 2001-06-21 |
| EP1276353A4 (en) | 2003-03-26 |
| EP1276353A1 (en) | 2003-01-15 |
| JP4032741B2 (en) | 2008-01-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103252321B (en) | A kind of defective products detects device for eliminating and method of work automatically | |
| CN103152919B (en) | Based on the tunnel lamp control system of video monitoring | |
| CN103702480A (en) | LED (Light-Emitting Diode) driving circuit and emitted light color changing method through LED driving circuit in combination with power switch | |
| JP2012113877A (en) | Emergency lighting device and emergency lighting apparatus | |
| CN102752942B (en) | Special point light emitting diode (LED) light source lamp for railway signals | |
| CN1335044A (en) | Lamp state detector and lamp state monitor using lamp state detector | |
| CN105491716B (en) | Real time fail feeds back LED light Optimizing Control System and real-time feedback method | |
| CN102486534A (en) | Photoelectric parameter measuring system of LED fluorescent lamp | |
| KR101280079B1 (en) | Light emitting diode street lamp, system for controlling light emitting diode street lamp, method for controlling light emitting diode street lamp | |
| CN111049578B (en) | AOC optical module connection checking method and device | |
| EP2210039B1 (en) | Hybrid illumination apparatus and method | |
| CN112058706A (en) | Power-on self-inspection system for DMX lamp | |
| CN202652665U (en) | Railway signal dedicated point-type LED light source lamp | |
| CN109195254A (en) | A kind of anti-flashing light protection system and method | |
| CN102665366B (en) | LED lamp fault detection system | |
| CN103389485B (en) | Detection device of electric energy meter and detection method | |
| CN1803508A (en) | LED signal lamp with digital automatic detection function | |
| CN113990005B (en) | Tunnel meter mark evacuation indication lamp | |
| CN109831850B (en) | Intelligent illumination control system for tunnel pavement brightness detection | |
| CN113093046A (en) | Car light fault detection system | |
| CN109799466A (en) | A kind of lamps and lanterns intelligent checking system and method | |
| KR100721856B1 (en) | Power Supply for Detection Trouble of Light Emitting DiodeLED Signal Lamp | |
| KR102618989B1 (en) | Led lighting apparatus and fault diagnosis apparatus for led lighting apparatus | |
| JP4382325B2 (en) | Multi-optical axis photoelectric switch | |
| CN117518020B (en) | Traffic signal lamp fault detection system and traffic signal device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |